* [PATCH V2 0/2] Add QLogic FastLinQ FCoE (qedf) driver
@ 2017-01-25 20:33 ` Dupuis, Chad
0 siblings, 0 replies; 15+ messages in thread
From: Dupuis, Chad @ 2017-01-25 20:33 UTC (permalink / raw)
To: martin.petersen
Cc: linux-scsi, fcoe-devel, netdev, yuval.mintz, QLogic-Storage-Upstream
From: "Dupuis, Chad" <chad.dupuis@cavium.com>
This series introduces the hardware offload FCoE initiator driver for the
41000 Series Converged Network Adapters (579xx chip) by Cavium. The overall
driver design includes a common module ('qed') and protocol specific
dependent modules ('qedf' for FCoE).
This driver uses the kernel components of libfc and libfcoe as is and does not
make use of the open-fcoe user space components. Therefore, no changes will need to be
made to any open-fcoe components.
The 'qed' common module, under drivers/net/ethernet/qlogic/qed/, is
enhanced with functionality required for FCoE support.
Martin, This patch needs to be applied first as the qedf patch is dependent
on the FCoE bits in the first qed driver patch.
Changes from V1 -> V2
Changes in qed:
- Fix compiler warning when CONFIG_DCB is not set.
Fixes in qedf:
- Add qedf to scsi directory Makefile.
- Updates to convert LightL2 and I/O processing kthreads to workqueues.
Changes from RFC -> V1
- Squash qedf patches to one patch now that the initial review has taken place
- Convert qedf to use hotplug state machine
- Return via va_end to match corresponding va_start in logging functions
- Convert qedf_ctx offloaded port list to a RCU list so searches do not need
to make use of spinlocks. Also eliminates the need to fcport conn_id's.
- Use IS_ERR(fp) in qedf_flogi_resp() instead of checking individual FC_EX_* errors.
- Remove scsi_block_target when executing TMF request.
- Checkpatch fixes in the qed and qedf patches
Arun Easi (1):
qed: Add support for hardware offloaded FCoE.
Dupuis, Chad (1):
qedf: Add QLogic FastLinQ offload FCoE driver framework.
MAINTAINERS | 6 +
drivers/net/ethernet/qlogic/Kconfig | 3 +
drivers/net/ethernet/qlogic/qed/Makefile | 1 +
drivers/net/ethernet/qlogic/qed/qed.h | 11 +
drivers/net/ethernet/qlogic/qed/qed_cxt.c | 98 +-
drivers/net/ethernet/qlogic/qed/qed_cxt.h | 3 +
drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 13 +-
drivers/net/ethernet/qlogic/qed/qed_dcbx.h | 5 +-
drivers/net/ethernet/qlogic/qed/qed_dev.c | 205 +-
drivers/net/ethernet/qlogic/qed/qed_dev_api.h | 42 +
drivers/net/ethernet/qlogic/qed/qed_fcoe.c | 990 ++++++
drivers/net/ethernet/qlogic/qed/qed_fcoe.h | 52 +
drivers/net/ethernet/qlogic/qed/qed_hsi.h | 781 ++++-
drivers/net/ethernet/qlogic/qed/qed_hw.c | 3 +
drivers/net/ethernet/qlogic/qed/qed_ll2.c | 25 +
drivers/net/ethernet/qlogic/qed/qed_ll2.h | 2 +-
drivers/net/ethernet/qlogic/qed/qed_main.c | 7 +
drivers/net/ethernet/qlogic/qed/qed_mcp.c | 3 +
drivers/net/ethernet/qlogic/qed/qed_mcp.h | 1 +
drivers/net/ethernet/qlogic/qed/qed_reg_addr.h | 8 +
drivers/net/ethernet/qlogic/qed/qed_sp.h | 4 +
drivers/net/ethernet/qlogic/qed/qed_sp_commands.c | 3 +
drivers/scsi/Kconfig | 1 +
drivers/scsi/Makefile | 1 +
drivers/scsi/qedf/Kconfig | 11 +
drivers/scsi/qedf/Makefile | 5 +
drivers/scsi/qedf/qedf.h | 548 ++++
drivers/scsi/qedf/qedf_attr.c | 165 +
drivers/scsi/qedf/qedf_dbg.c | 195 ++
drivers/scsi/qedf/qedf_dbg.h | 154 +
drivers/scsi/qedf/qedf_debugfs.c | 460 +++
drivers/scsi/qedf/qedf_els.c | 983 ++++++
drivers/scsi/qedf/qedf_fip.c | 269 ++
drivers/scsi/qedf/qedf_hsi.h | 427 +++
drivers/scsi/qedf/qedf_io.c | 2280 ++++++++++++++
drivers/scsi/qedf/qedf_main.c | 3335 +++++++++++++++++++++
drivers/scsi/qedf/qedf_version.h | 15 +
include/linux/qed/common_hsi.h | 10 +-
include/linux/qed/fcoe_common.h | 715 +++++
include/linux/qed/qed_fcoe_if.h | 145 +
include/linux/qed/qed_if.h | 41 +-
41 files changed, 12007 insertions(+), 19 deletions(-)
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
create mode 100644 drivers/scsi/qedf/Kconfig
create mode 100644 drivers/scsi/qedf/Makefile
create mode 100644 drivers/scsi/qedf/qedf.h
create mode 100644 drivers/scsi/qedf/qedf_attr.c
create mode 100644 drivers/scsi/qedf/qedf_dbg.c
create mode 100644 drivers/scsi/qedf/qedf_dbg.h
create mode 100644 drivers/scsi/qedf/qedf_debugfs.c
create mode 100644 drivers/scsi/qedf/qedf_els.c
create mode 100644 drivers/scsi/qedf/qedf_fip.c
create mode 100644 drivers/scsi/qedf/qedf_hsi.h
create mode 100644 drivers/scsi/qedf/qedf_io.c
create mode 100644 drivers/scsi/qedf/qedf_main.c
create mode 100644 drivers/scsi/qedf/qedf_version.h
create mode 100644 include/linux/qed/fcoe_common.h
create mode 100644 include/linux/qed/qed_fcoe_if.h
--
1.8.5.6
^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH V2 0/2] Add QLogic FastLinQ FCoE (qedf) driver
@ 2017-01-25 20:33 ` Dupuis, Chad
0 siblings, 0 replies; 15+ messages in thread
From: Dupuis, Chad @ 2017-01-25 20:33 UTC (permalink / raw)
To: martin.petersen
Cc: linux-scsi, fcoe-devel, netdev, yuval.mintz, QLogic-Storage-Upstream
From: "Dupuis, Chad" <chad.dupuis@cavium.com>
This series introduces the hardware offload FCoE initiator driver for the
41000 Series Converged Network Adapters (579xx chip) by Cavium. The overall
driver design includes a common module ('qed') and protocol specific
dependent modules ('qedf' for FCoE).
This driver uses the kernel components of libfc and libfcoe as is and does not
make use of the open-fcoe user space components. Therefore, no changes will need to be
made to any open-fcoe components.
The 'qed' common module, under drivers/net/ethernet/qlogic/qed/, is
enhanced with functionality required for FCoE support.
Martin, This patch needs to be applied first as the qedf patch is dependent
on the FCoE bits in the first qed driver patch.
Changes from V1 -> V2
Changes in qed:
- Fix compiler warning when CONFIG_DCB is not set.
Fixes in qedf:
- Add qedf to scsi directory Makefile.
- Updates to convert LightL2 and I/O processing kthreads to workqueues.
Changes from RFC -> V1
- Squash qedf patches to one patch now that the initial review has taken place
- Convert qedf to use hotplug state machine
- Return via va_end to match corresponding va_start in logging functions
- Convert qedf_ctx offloaded port list to a RCU list so searches do not need
to make use of spinlocks. Also eliminates the need to fcport conn_id's.
- Use IS_ERR(fp) in qedf_flogi_resp() instead of checking individual FC_EX_* errors.
- Remove scsi_block_target when executing TMF request.
- Checkpatch fixes in the qed and qedf patches
Arun Easi (1):
qed: Add support for hardware offloaded FCoE.
Dupuis, Chad (1):
qedf: Add QLogic FastLinQ offload FCoE driver framework.
MAINTAINERS | 6 +
drivers/net/ethernet/qlogic/Kconfig | 3 +
drivers/net/ethernet/qlogic/qed/Makefile | 1 +
drivers/net/ethernet/qlogic/qed/qed.h | 11 +
drivers/net/ethernet/qlogic/qed/qed_cxt.c | 98 +-
drivers/net/ethernet/qlogic/qed/qed_cxt.h | 3 +
drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 13 +-
drivers/net/ethernet/qlogic/qed/qed_dcbx.h | 5 +-
drivers/net/ethernet/qlogic/qed/qed_dev.c | 205 +-
drivers/net/ethernet/qlogic/qed/qed_dev_api.h | 42 +
drivers/net/ethernet/qlogic/qed/qed_fcoe.c | 990 ++++++
drivers/net/ethernet/qlogic/qed/qed_fcoe.h | 52 +
drivers/net/ethernet/qlogic/qed/qed_hsi.h | 781 ++++-
drivers/net/ethernet/qlogic/qed/qed_hw.c | 3 +
drivers/net/ethernet/qlogic/qed/qed_ll2.c | 25 +
drivers/net/ethernet/qlogic/qed/qed_ll2.h | 2 +-
drivers/net/ethernet/qlogic/qed/qed_main.c | 7 +
drivers/net/ethernet/qlogic/qed/qed_mcp.c | 3 +
drivers/net/ethernet/qlogic/qed/qed_mcp.h | 1 +
drivers/net/ethernet/qlogic/qed/qed_reg_addr.h | 8 +
drivers/net/ethernet/qlogic/qed/qed_sp.h | 4 +
drivers/net/ethernet/qlogic/qed/qed_sp_commands.c | 3 +
drivers/scsi/Kconfig | 1 +
drivers/scsi/Makefile | 1 +
drivers/scsi/qedf/Kconfig | 11 +
drivers/scsi/qedf/Makefile | 5 +
drivers/scsi/qedf/qedf.h | 548 ++++
drivers/scsi/qedf/qedf_attr.c | 165 +
drivers/scsi/qedf/qedf_dbg.c | 195 ++
drivers/scsi/qedf/qedf_dbg.h | 154 +
drivers/scsi/qedf/qedf_debugfs.c | 460 +++
drivers/scsi/qedf/qedf_els.c | 983 ++++++
drivers/scsi/qedf/qedf_fip.c | 269 ++
drivers/scsi/qedf/qedf_hsi.h | 427 +++
drivers/scsi/qedf/qedf_io.c | 2280 ++++++++++++++
drivers/scsi/qedf/qedf_main.c | 3335 +++++++++++++++++++++
drivers/scsi/qedf/qedf_version.h | 15 +
include/linux/qed/common_hsi.h | 10 +-
include/linux/qed/fcoe_common.h | 715 +++++
include/linux/qed/qed_fcoe_if.h | 145 +
include/linux/qed/qed_if.h | 41 +-
41 files changed, 12007 insertions(+), 19 deletions(-)
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
create mode 100644 drivers/scsi/qedf/Kconfig
create mode 100644 drivers/scsi/qedf/Makefile
create mode 100644 drivers/scsi/qedf/qedf.h
create mode 100644 drivers/scsi/qedf/qedf_attr.c
create mode 100644 drivers/scsi/qedf/qedf_dbg.c
create mode 100644 drivers/scsi/qedf/qedf_dbg.h
create mode 100644 drivers/scsi/qedf/qedf_debugfs.c
create mode 100644 drivers/scsi/qedf/qedf_els.c
create mode 100644 drivers/scsi/qedf/qedf_fip.c
create mode 100644 drivers/scsi/qedf/qedf_hsi.h
create mode 100644 drivers/scsi/qedf/qedf_io.c
create mode 100644 drivers/scsi/qedf/qedf_main.c
create mode 100644 drivers/scsi/qedf/qedf_version.h
create mode 100644 include/linux/qed/fcoe_common.h
create mode 100644 include/linux/qed/qed_fcoe_if.h
--
1.8.5.6
^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH V2 net-next 1/2] qed: Add support for hardware offloaded FCoE.
2017-01-25 20:33 ` Dupuis, Chad
@ 2017-01-25 20:33 ` Dupuis, Chad
-1 siblings, 0 replies; 15+ messages in thread
From: Dupuis, Chad @ 2017-01-25 20:33 UTC (permalink / raw)
To: martin.petersen
Cc: linux-scsi, fcoe-devel, netdev, yuval.mintz, QLogic-Storage-Upstream
From: Arun Easi <arun.easi@qlogic.com>
This adds the backbone required for the various HW initalizations
which are necessary for the FCoE driver (qedf) for QLogic FastLinQ
4xxxx line of adapters - FW notification, resource initializations, etc.
Signed-off-by: Arun Easi <arun.easi@cavium.com>
Signed-off-by: Yuval Mintz <yuval.mintz@cavium.com>
---
drivers/net/ethernet/qlogic/Kconfig | 3 +
drivers/net/ethernet/qlogic/qed/Makefile | 1 +
drivers/net/ethernet/qlogic/qed/qed.h | 11 +
drivers/net/ethernet/qlogic/qed/qed_cxt.c | 98 ++-
drivers/net/ethernet/qlogic/qed/qed_cxt.h | 3 +
drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 13 +-
drivers/net/ethernet/qlogic/qed/qed_dcbx.h | 5 +-
drivers/net/ethernet/qlogic/qed/qed_dev.c | 205 ++++-
drivers/net/ethernet/qlogic/qed/qed_dev_api.h | 42 +
drivers/net/ethernet/qlogic/qed/qed_fcoe.c | 990 ++++++++++++++++++++++
drivers/net/ethernet/qlogic/qed/qed_fcoe.h | 52 ++
drivers/net/ethernet/qlogic/qed/qed_hsi.h | 781 ++++++++++++++++-
drivers/net/ethernet/qlogic/qed/qed_hw.c | 3 +
drivers/net/ethernet/qlogic/qed/qed_ll2.c | 25 +
drivers/net/ethernet/qlogic/qed/qed_ll2.h | 2 +-
drivers/net/ethernet/qlogic/qed/qed_main.c | 7 +
drivers/net/ethernet/qlogic/qed/qed_mcp.c | 3 +
drivers/net/ethernet/qlogic/qed/qed_mcp.h | 1 +
drivers/net/ethernet/qlogic/qed/qed_reg_addr.h | 8 +
drivers/net/ethernet/qlogic/qed/qed_sp.h | 4 +
drivers/net/ethernet/qlogic/qed/qed_sp_commands.c | 3 +
include/linux/qed/common_hsi.h | 10 +-
include/linux/qed/fcoe_common.h | 715 ++++++++++++++++
include/linux/qed/qed_fcoe_if.h | 145 ++++
include/linux/qed/qed_if.h | 41 +-
25 files changed, 3152 insertions(+), 19 deletions(-)
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
create mode 100644 include/linux/qed/fcoe_common.h
create mode 100644 include/linux/qed/qed_fcoe_if.h
diff --git a/drivers/net/ethernet/qlogic/Kconfig b/drivers/net/ethernet/qlogic/Kconfig
index 3cfd105..737b303 100644
--- a/drivers/net/ethernet/qlogic/Kconfig
+++ b/drivers/net/ethernet/qlogic/Kconfig
@@ -113,4 +113,7 @@ config QED_RDMA
config QED_ISCSI
bool
+config QED_FCOE
+ bool
+
endif # NET_VENDOR_QLOGIC
diff --git a/drivers/net/ethernet/qlogic/qed/Makefile b/drivers/net/ethernet/qlogic/qed/Makefile
index 729e437..e234083 100644
--- a/drivers/net/ethernet/qlogic/qed/Makefile
+++ b/drivers/net/ethernet/qlogic/qed/Makefile
@@ -7,3 +7,4 @@ qed-$(CONFIG_QED_SRIOV) += qed_sriov.o qed_vf.o
qed-$(CONFIG_QED_LL2) += qed_ll2.o
qed-$(CONFIG_QED_RDMA) += qed_roce.o
qed-$(CONFIG_QED_ISCSI) += qed_iscsi.o qed_ooo.o
+qed-$(CONFIG_QED_FCOE) += qed_fcoe.o
diff --git a/drivers/net/ethernet/qlogic/qed/qed.h b/drivers/net/ethernet/qlogic/qed/qed.h
index 1f61cf3..08f2885 100644
--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -60,6 +60,7 @@
#define QED_WFQ_UNIT 100
#define ISCSI_BDQ_ID(_port_id) (_port_id)
+#define FCOE_BDQ_ID(_port_id) ((_port_id) + 2)
#define QED_WID_SIZE (1024)
#define QED_PF_DEMS_SIZE (4)
@@ -167,6 +168,7 @@ struct qed_tunn_update_params {
*/
enum qed_pci_personality {
QED_PCI_ETH,
+ QED_PCI_FCOE,
QED_PCI_ISCSI,
QED_PCI_ETH_ROCE,
QED_PCI_DEFAULT /* default in shmem */
@@ -204,6 +206,7 @@ enum QED_FEATURE {
QED_VF,
QED_RDMA_CNQ,
QED_VF_L2_QUE,
+ QED_FCOE_CQ,
QED_MAX_FEATURES,
};
@@ -221,6 +224,7 @@ enum QED_PORT_MODE {
enum qed_dev_cap {
QED_DEV_CAP_ETH,
+ QED_DEV_CAP_FCOE,
QED_DEV_CAP_ISCSI,
QED_DEV_CAP_ROCE,
};
@@ -255,6 +259,10 @@ struct qed_hw_info {
u32 part_num[4];
unsigned char hw_mac_addr[ETH_ALEN];
+ u64 node_wwn;
+ u64 port_wwn;
+
+ u16 num_fcoe_conns;
struct qed_igu_info *p_igu_info;
@@ -410,6 +418,7 @@ struct qed_hwfn {
struct qed_ooo_info *p_ooo_info;
struct qed_rdma_info *p_rdma_info;
struct qed_iscsi_info *p_iscsi_info;
+ struct qed_fcoe_info *p_fcoe_info;
struct qed_pf_params pf_params;
bool b_rdma_enabled_in_prs;
@@ -618,11 +627,13 @@ struct qed_dev {
u8 protocol;
#define IS_QED_ETH_IF(cdev) ((cdev)->protocol == QED_PROTOCOL_ETH)
+#define IS_QED_FCOE_IF(cdev) ((cdev)->protocol == QED_PROTOCOL_FCOE)
/* Callbacks to protocol driver */
union {
struct qed_common_cb_ops *common;
struct qed_eth_cb_ops *eth;
+ struct qed_fcoe_cb_ops *fcoe;
struct qed_iscsi_cb_ops *iscsi;
} protocol_ops;
void *ops_cookie;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_cxt.c b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
index dcb8fc1..d42d03d 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_cxt.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
@@ -90,12 +90,14 @@
struct core_conn_context core_ctx;
struct eth_conn_context eth_ctx;
struct iscsi_conn_context iscsi_ctx;
+ struct fcoe_conn_context fcoe_ctx;
struct roce_conn_context roce_ctx;
};
-/* TYPE-0 task context - iSCSI */
+/* TYPE-0 task context - iSCSI, FCOE */
union type0_task_context {
struct iscsi_task_context iscsi_ctx;
+ struct fcoe_task_context fcoe_ctx;
};
/* TYPE-1 task context - ROCE */
@@ -240,15 +242,22 @@ struct qed_cxt_mngr {
static bool src_proto(enum protocol_type type)
{
return type == PROTOCOLID_ISCSI ||
+ type == PROTOCOLID_FCOE ||
type == PROTOCOLID_ROCE;
}
static bool tm_cid_proto(enum protocol_type type)
{
return type == PROTOCOLID_ISCSI ||
+ type == PROTOCOLID_FCOE ||
type == PROTOCOLID_ROCE;
}
+static bool tm_tid_proto(enum protocol_type type)
+{
+ return type == PROTOCOLID_FCOE;
+}
+
/* counts the iids for the CDU/CDUC ILT client configuration */
struct qed_cdu_iids {
u32 pf_cids;
@@ -307,6 +316,22 @@ static void qed_cxt_tm_iids(struct qed_cxt_mngr *p_mngr,
iids->pf_cids += p_cfg->cid_count;
iids->per_vf_cids += p_cfg->cids_per_vf;
}
+
+ if (tm_tid_proto(i)) {
+ struct qed_tid_seg *segs = p_cfg->tid_seg;
+
+ /* for each segment there is at most one
+ * protocol for which count is not 0.
+ */
+ for (j = 0; j < NUM_TASK_PF_SEGMENTS; j++)
+ iids->pf_tids[j] += segs[j].count;
+
+ /* The last array elelment is for the VFs. As for PF
+ * segments there can be only one protocol for
+ * which this value is not 0.
+ */
+ iids->per_vf_tids += segs[NUM_TASK_PF_SEGMENTS].count;
+ }
}
iids->pf_cids = roundup(iids->pf_cids, TM_ALIGN);
@@ -1694,9 +1719,42 @@ static void qed_tm_init_pf(struct qed_hwfn *p_hwfn)
/* @@@TBD how to enable the scan for the VFs */
}
+static void qed_prs_init_common(struct qed_hwfn *p_hwfn)
+{
+ if ((p_hwfn->hw_info.personality == QED_PCI_FCOE) &&
+ p_hwfn->pf_params.fcoe_pf_params.is_target)
+ STORE_RT_REG(p_hwfn,
+ PRS_REG_SEARCH_RESP_INITIATOR_TYPE_RT_OFFSET, 0);
+}
+
+static void qed_prs_init_pf(struct qed_hwfn *p_hwfn)
+{
+ struct qed_cxt_mngr *p_mngr = p_hwfn->p_cxt_mngr;
+ struct qed_conn_type_cfg *p_fcoe;
+ struct qed_tid_seg *p_tid;
+
+ p_fcoe = &p_mngr->conn_cfg[PROTOCOLID_FCOE];
+
+ /* If FCoE is active set the MAX OX_ID (tid) in the Parser */
+ if (!p_fcoe->cid_count)
+ return;
+
+ p_tid = &p_fcoe->tid_seg[QED_CXT_FCOE_TID_SEG];
+ if (p_hwfn->pf_params.fcoe_pf_params.is_target) {
+ STORE_RT_REG_AGG(p_hwfn,
+ PRS_REG_TASK_ID_MAX_TARGET_PF_RT_OFFSET,
+ p_tid->count);
+ } else {
+ STORE_RT_REG_AGG(p_hwfn,
+ PRS_REG_TASK_ID_MAX_INITIATOR_PF_RT_OFFSET,
+ p_tid->count);
+ }
+}
+
void qed_cxt_hw_init_common(struct qed_hwfn *p_hwfn)
{
qed_cdu_init_common(p_hwfn);
+ qed_prs_init_common(p_hwfn);
}
void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn)
@@ -1708,6 +1766,7 @@ void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn)
qed_ilt_init_pf(p_hwfn);
qed_src_init_pf(p_hwfn);
qed_tm_init_pf(p_hwfn);
+ qed_prs_init_pf(p_hwfn);
}
int qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn,
@@ -1885,6 +1944,27 @@ int qed_cxt_set_pf_params(struct qed_hwfn *p_hwfn)
p_params->num_cons, 1);
break;
}
+ case QED_PCI_FCOE:
+ {
+ struct qed_fcoe_pf_params *p_params;
+
+ p_params = &p_hwfn->pf_params.fcoe_pf_params;
+
+ if (p_params->num_cons && p_params->num_tasks) {
+ qed_cxt_set_proto_cid_count(p_hwfn,
+ PROTOCOLID_FCOE,
+ p_params->num_cons,
+ 0);
+
+ qed_cxt_set_proto_tid_count(p_hwfn, PROTOCOLID_FCOE,
+ QED_CXT_FCOE_TID_SEG, 0,
+ p_params->num_tasks, true);
+ } else {
+ DP_INFO(p_hwfn->cdev,
+ "Fcoe personality used without setting params!\n");
+ }
+ break;
+ }
case QED_PCI_ISCSI:
{
struct qed_iscsi_pf_params *p_params;
@@ -1927,6 +2007,10 @@ int qed_cxt_get_tid_mem_info(struct qed_hwfn *p_hwfn,
/* Verify the personality */
switch (p_hwfn->hw_info.personality) {
+ case QED_PCI_FCOE:
+ proto = PROTOCOLID_FCOE;
+ seg = QED_CXT_FCOE_TID_SEG;
+ break;
case QED_PCI_ISCSI:
proto = PROTOCOLID_ISCSI;
seg = QED_CXT_ISCSI_TID_SEG;
@@ -2215,15 +2299,19 @@ int qed_cxt_get_task_ctx(struct qed_hwfn *p_hwfn,
{
struct qed_cxt_mngr *p_mngr = p_hwfn->p_cxt_mngr;
struct qed_ilt_client_cfg *p_cli;
- struct qed_ilt_cli_blk *p_seg;
struct qed_tid_seg *p_seg_info;
- u32 proto, seg;
- u32 total_lines;
- u32 tid_size, ilt_idx;
+ struct qed_ilt_cli_blk *p_seg;
u32 num_tids_per_block;
+ u32 tid_size, ilt_idx;
+ u32 total_lines;
+ u32 proto, seg;
/* Verify the personality */
switch (p_hwfn->hw_info.personality) {
+ case QED_PCI_FCOE:
+ proto = PROTOCOLID_FCOE;
+ seg = QED_CXT_FCOE_TID_SEG;
+ break;
case QED_PCI_ISCSI:
proto = PROTOCOLID_ISCSI;
seg = QED_CXT_ISCSI_TID_SEG;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_cxt.h b/drivers/net/ethernet/qlogic/qed/qed_cxt.h
index 98f4973..8b01032 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_cxt.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_cxt.h
@@ -91,6 +91,7 @@ int qed_cxt_get_tid_mem_info(struct qed_hwfn *p_hwfn,
#define QED_CXT_ISCSI_TID_SEG PROTOCOLID_ISCSI
#define QED_CXT_ROCE_TID_SEG PROTOCOLID_ROCE
+#define QED_CXT_FCOE_TID_SEG PROTOCOLID_FCOE
enum qed_cxt_elem_type {
QED_ELEM_CXT,
QED_ELEM_SRQ,
@@ -204,4 +205,6 @@ u32 qed_cxt_get_proto_cid_start(struct qed_hwfn *p_hwfn,
#define QED_CTX_WORKING_MEM 0
#define QED_CTX_FL_MEM 1
+int qed_cxt_get_task_ctx(struct qed_hwfn *p_hwfn,
+ u32 tid, u8 ctx_type, void **task_ctx);
#endif
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
index dc0d2c9..5bd36a4 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
@@ -432,7 +432,6 @@ static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn)
return rc;
}
-#ifdef CONFIG_DCB
static void
qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn,
struct qed_dcbx_app_prio *p_prio,
@@ -749,7 +748,6 @@ static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn)
return 0;
}
-#endif
static int
qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
@@ -864,6 +862,15 @@ static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
return rc;
}
+void qed_dcbx_aen(struct qed_hwfn *hwfn, u32 mib_type)
+{
+ struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
+ void *cookie = hwfn->cdev->ops_cookie;
+
+ if (cookie && op->dcbx_aen)
+ op->dcbx_aen(cookie, &hwfn->p_dcbx_info->get, mib_type);
+}
+
/* Read updated MIB.
* Reconfigure QM and invoke PF update ramrod command if operational MIB
* change is detected.
@@ -890,6 +897,8 @@ static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
qed_sp_pf_update(p_hwfn);
}
}
+ qed_dcbx_get_params(p_hwfn, p_ptt, &p_hwfn->p_dcbx_info->get, type);
+ qed_dcbx_aen(p_hwfn, type);
return rc;
}
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
index d70300f..0fabe97 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
@@ -57,7 +57,6 @@ struct qed_dcbx_app_data {
u8 tc; /* Traffic Class */
};
-#ifdef CONFIG_DCB
#define QED_DCBX_VERSION_DISABLED 0
#define QED_DCBX_VERSION_IEEE 1
#define QED_DCBX_VERSION_CEE 2
@@ -73,7 +72,6 @@ struct qed_dcbx_set {
struct qed_dcbx_admin_params config;
u32 ver_num;
};
-#endif
struct qed_dcbx_results {
bool dcbx_enabled;
@@ -97,9 +95,8 @@ struct qed_dcbx_info {
struct qed_dcbx_results results;
struct dcbx_mib operational;
struct dcbx_mib remote;
-#ifdef CONFIG_DCB
struct qed_dcbx_set set;
-#endif
+ struct qed_dcbx_get get;
u8 dcbx_cap;
};
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 33e7201..5ee7f04 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -49,6 +49,7 @@
#include "qed_cxt.h"
#include "qed_dcbx.h"
#include "qed_dev_api.h"
+#include "qed_fcoe.h"
#include "qed_hsi.h"
#include "qed_hw.h"
#include "qed_init_ops.h"
@@ -172,6 +173,9 @@ void qed_resc_free(struct qed_dev *cdev)
#ifdef CONFIG_QED_LL2
qed_ll2_free(p_hwfn, p_hwfn->p_ll2_info);
#endif
+ if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
+ qed_fcoe_free(p_hwfn, p_hwfn->p_fcoe_info);
+
if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
qed_iscsi_free(p_hwfn, p_hwfn->p_iscsi_info);
qed_ooo_free(p_hwfn, p_hwfn->p_ooo_info);
@@ -433,6 +437,7 @@ int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
int qed_resc_alloc(struct qed_dev *cdev)
{
struct qed_iscsi_info *p_iscsi_info;
+ struct qed_fcoe_info *p_fcoe_info;
struct qed_ooo_info *p_ooo_info;
#ifdef CONFIG_QED_LL2
struct qed_ll2_info *p_ll2_info;
@@ -539,6 +544,14 @@ int qed_resc_alloc(struct qed_dev *cdev)
p_hwfn->p_ll2_info = p_ll2_info;
}
#endif
+
+ if (p_hwfn->hw_info.personality == QED_PCI_FCOE) {
+ p_fcoe_info = qed_fcoe_alloc(p_hwfn);
+ if (!p_fcoe_info)
+ goto alloc_no_mem;
+ p_hwfn->p_fcoe_info = p_fcoe_info;
+ }
+
if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
p_iscsi_info = qed_iscsi_alloc(p_hwfn);
if (!p_iscsi_info)
@@ -602,6 +615,9 @@ void qed_resc_setup(struct qed_dev *cdev)
if (p_hwfn->using_ll2)
qed_ll2_setup(p_hwfn, p_hwfn->p_ll2_info);
#endif
+ if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
+ qed_fcoe_setup(p_hwfn, p_hwfn->p_fcoe_info);
+
if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
qed_iscsi_setup(p_hwfn, p_hwfn->p_iscsi_info);
qed_ooo_setup(p_hwfn, p_hwfn->p_ooo_info);
@@ -994,7 +1010,8 @@ static int qed_hw_init_pf(struct qed_hwfn *p_hwfn,
/* Protocl Configuration */
STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_TCP_RT_OFFSET,
(p_hwfn->hw_info.personality == QED_PCI_ISCSI) ? 1 : 0);
- STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_FCOE_RT_OFFSET, 0);
+ STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_FCOE_RT_OFFSET,
+ (p_hwfn->hw_info.personality == QED_PCI_FCOE) ? 1 : 0);
STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_ROCE_RT_OFFSET, 0);
/* Cleanup chip from previous driver if such remains exist */
@@ -1026,8 +1043,16 @@ static int qed_hw_init_pf(struct qed_hwfn *p_hwfn,
/* send function start command */
rc = qed_sp_pf_start(p_hwfn, p_tunn, p_hwfn->cdev->mf_mode,
allow_npar_tx_switch);
- if (rc)
+ if (rc) {
DP_NOTICE(p_hwfn, "Function start ramrod failed\n");
+ return rc;
+ }
+ if (p_hwfn->hw_info.personality == QED_PCI_FCOE) {
+ qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TAG1, BIT(2));
+ qed_wr(p_hwfn, p_ptt,
+ PRS_REG_PKT_LEN_STAT_TAGS_NOT_COUNTED_FIRST,
+ 0x100);
+ }
}
return rc;
}
@@ -1787,8 +1812,8 @@ static int qed_hw_get_resc(struct qed_hwfn *p_hwfn)
static int qed_hw_get_nvm_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
- u32 nvm_cfg1_offset, mf_mode, addr, generic_cont0, core_cfg;
u32 port_cfg_addr, link_temp, nvm_cfg_addr, device_capabilities;
+ u32 nvm_cfg1_offset, mf_mode, addr, generic_cont0, core_cfg;
struct qed_mcp_link_params *link;
/* Read global nvm_cfg address */
@@ -1934,6 +1959,9 @@ static int qed_hw_get_nvm_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ETHERNET)
__set_bit(QED_DEV_CAP_ETH,
&p_hwfn->hw_info.device_capabilities);
+ if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_FCOE)
+ __set_bit(QED_DEV_CAP_FCOE,
+ &p_hwfn->hw_info.device_capabilities);
if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ISCSI)
__set_bit(QED_DEV_CAP_ISCSI,
&p_hwfn->hw_info.device_capabilities);
@@ -2671,6 +2699,177 @@ void qed_llh_remove_mac_filter(struct qed_hwfn *p_hwfn,
DP_NOTICE(p_hwfn, "Tried to remove a non-configured filter\n");
}
+int
+qed_llh_add_protocol_filter(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ u16 source_port_or_eth_type,
+ u16 dest_port, enum qed_llh_port_filter_type_t type)
+{
+ u32 high = 0, low = 0, en;
+ int i;
+
+ if (!(IS_MF_SI(p_hwfn) || IS_MF_DEFAULT(p_hwfn)))
+ return 0;
+
+ switch (type) {
+ case QED_LLH_FILTER_ETHERTYPE:
+ high = source_port_or_eth_type;
+ break;
+ case QED_LLH_FILTER_TCP_SRC_PORT:
+ case QED_LLH_FILTER_UDP_SRC_PORT:
+ low = source_port_or_eth_type << 16;
+ break;
+ case QED_LLH_FILTER_TCP_DEST_PORT:
+ case QED_LLH_FILTER_UDP_DEST_PORT:
+ low = dest_port;
+ break;
+ case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
+ case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
+ low = (source_port_or_eth_type << 16) | dest_port;
+ break;
+ default:
+ DP_NOTICE(p_hwfn,
+ "Non valid LLH protocol filter type %d\n", type);
+ return -EINVAL;
+ }
+ /* Find a free entry and utilize it */
+ for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
+ en = qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32));
+ if (en)
+ continue;
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE +
+ 2 * i * sizeof(u32), low);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE +
+ (2 * i + 1) * sizeof(u32), high);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_MODE + i * sizeof(u32), 1);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE +
+ i * sizeof(u32), 1 << type);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32), 1);
+ break;
+ }
+ if (i >= NIG_REG_LLH_FUNC_FILTER_EN_SIZE) {
+ DP_NOTICE(p_hwfn,
+ "Failed to find an empty LLH filter to utilize\n");
+ return -EINVAL;
+ }
+ switch (type) {
+ case QED_LLH_FILTER_ETHERTYPE:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "ETH type %x is added at %d\n",
+ source_port_or_eth_type, i);
+ break;
+ case QED_LLH_FILTER_TCP_SRC_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "TCP src port %x is added at %d\n",
+ source_port_or_eth_type, i);
+ break;
+ case QED_LLH_FILTER_UDP_SRC_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "UDP src port %x is added at %d\n",
+ source_port_or_eth_type, i);
+ break;
+ case QED_LLH_FILTER_TCP_DEST_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "TCP dst port %x is added at %d\n", dest_port, i);
+ break;
+ case QED_LLH_FILTER_UDP_DEST_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "UDP dst port %x is added at %d\n", dest_port, i);
+ break;
+ case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "TCP src/dst ports %x/%x are added at %d\n",
+ source_port_or_eth_type, dest_port, i);
+ break;
+ case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "UDP src/dst ports %x/%x are added at %d\n",
+ source_port_or_eth_type, dest_port, i);
+ break;
+ }
+ return 0;
+}
+
+void
+qed_llh_remove_protocol_filter(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ u16 source_port_or_eth_type,
+ u16 dest_port,
+ enum qed_llh_port_filter_type_t type)
+{
+ u32 high = 0, low = 0;
+ int i;
+
+ if (!(IS_MF_SI(p_hwfn) || IS_MF_DEFAULT(p_hwfn)))
+ return;
+
+ switch (type) {
+ case QED_LLH_FILTER_ETHERTYPE:
+ high = source_port_or_eth_type;
+ break;
+ case QED_LLH_FILTER_TCP_SRC_PORT:
+ case QED_LLH_FILTER_UDP_SRC_PORT:
+ low = source_port_or_eth_type << 16;
+ break;
+ case QED_LLH_FILTER_TCP_DEST_PORT:
+ case QED_LLH_FILTER_UDP_DEST_PORT:
+ low = dest_port;
+ break;
+ case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
+ case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
+ low = (source_port_or_eth_type << 16) | dest_port;
+ break;
+ default:
+ DP_NOTICE(p_hwfn,
+ "Non valid LLH protocol filter type %d\n", type);
+ return;
+ }
+
+ for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
+ if (!qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32)))
+ continue;
+ if (!qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_MODE + i * sizeof(u32)))
+ continue;
+ if (!(qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE +
+ i * sizeof(u32)) & BIT(type)))
+ continue;
+ if (qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE +
+ 2 * i * sizeof(u32)) != low)
+ continue;
+ if (qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE +
+ (2 * i + 1) * sizeof(u32)) != high)
+ continue;
+
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32), 0);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_MODE + i * sizeof(u32), 0);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE +
+ i * sizeof(u32), 0);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE + 2 * i * sizeof(u32), 0);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE +
+ (2 * i + 1) * sizeof(u32), 0);
+ break;
+ }
+
+ if (i >= NIG_REG_LLH_FUNC_FILTER_EN_SIZE)
+ DP_NOTICE(p_hwfn, "Tried to remove a non-configured filter\n");
+}
+
static int qed_set_coalesce(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
u32 hw_addr, void *p_eth_qzone,
size_t eth_qzone_size, u8 timeset)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev_api.h b/drivers/net/ethernet/qlogic/qed/qed_dev_api.h
index 5d37ba2..6812003 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev_api.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev_api.h
@@ -353,6 +353,48 @@ int qed_llh_add_mac_filter(struct qed_hwfn *p_hwfn,
void qed_llh_remove_mac_filter(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, u8 *p_filter);
+enum qed_llh_port_filter_type_t {
+ QED_LLH_FILTER_ETHERTYPE,
+ QED_LLH_FILTER_TCP_SRC_PORT,
+ QED_LLH_FILTER_TCP_DEST_PORT,
+ QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT,
+ QED_LLH_FILTER_UDP_SRC_PORT,
+ QED_LLH_FILTER_UDP_DEST_PORT,
+ QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT
+};
+
+/**
+ * @brief qed_llh_add_protocol_filter - configures a protocol filter in llh
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ * @param source_port_or_eth_type - source port or ethertype to add
+ * @param dest_port - destination port to add
+ * @param type - type of filters and comparing
+ */
+int
+qed_llh_add_protocol_filter(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ u16 source_port_or_eth_type,
+ u16 dest_port,
+ enum qed_llh_port_filter_type_t type);
+
+/**
+ * @brief qed_llh_remove_protocol_filter - remove a protocol filter in llh
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ * @param source_port_or_eth_type - source port or ethertype to add
+ * @param dest_port - destination port to add
+ * @param type - type of filters and comparing
+ */
+void
+qed_llh_remove_protocol_filter(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ u16 source_port_or_eth_type,
+ u16 dest_port,
+ enum qed_llh_port_filter_type_t type);
+
/**
* *@brief Cleanup of previous driver remains prior to load
*
diff --git a/drivers/net/ethernet/qlogic/qed/qed_fcoe.c b/drivers/net/ethernet/qlogic/qed/qed_fcoe.c
new file mode 100644
index 0000000..5118fcaf
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_fcoe.c
@@ -0,0 +1,990 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2016 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+#include <asm/param.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/log2.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/stddef.h>
+#include <linux/string.h>
+#include <linux/version.h>
+#include <linux/workqueue.h>
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#define __PREVENT_DUMP_MEM_ARR__
+#define __PREVENT_PXP_GLOBAL_WIN__
+#include "qed.h"
+#include "qed_cxt.h"
+#include "qed_dev_api.h"
+#include "qed_fcoe.h"
+#include "qed_hsi.h"
+#include "qed_hw.h"
+#include "qed_int.h"
+#include "qed_ll2.h"
+#include "qed_mcp.h"
+#include "qed_reg_addr.h"
+#include "qed_sp.h"
+#include "qed_sriov.h"
+#include <linux/qed/qed_fcoe_if.h>
+
+struct qed_fcoe_conn {
+ struct list_head list_entry;
+ bool free_on_delete;
+
+ u16 conn_id;
+ u32 icid;
+ u32 fw_cid;
+ u8 layer_code;
+
+ dma_addr_t sq_pbl_addr;
+ dma_addr_t sq_curr_page_addr;
+ dma_addr_t sq_next_page_addr;
+ dma_addr_t xferq_pbl_addr;
+ void *xferq_pbl_addr_virt_addr;
+ dma_addr_t xferq_addr[4];
+ void *xferq_addr_virt_addr[4];
+ dma_addr_t confq_pbl_addr;
+ void *confq_pbl_addr_virt_addr;
+ dma_addr_t confq_addr[2];
+ void *confq_addr_virt_addr[2];
+
+ dma_addr_t terminate_params;
+
+ u16 dst_mac_addr_lo;
+ u16 dst_mac_addr_mid;
+ u16 dst_mac_addr_hi;
+ u16 src_mac_addr_lo;
+ u16 src_mac_addr_mid;
+ u16 src_mac_addr_hi;
+
+ u16 tx_max_fc_pay_len;
+ u16 e_d_tov_timer_val;
+ u16 rec_tov_timer_val;
+ u16 rx_max_fc_pay_len;
+ u16 vlan_tag;
+ u16 physical_q0;
+
+ struct fc_addr_nw s_id;
+ u8 max_conc_seqs_c3;
+ struct fc_addr_nw d_id;
+ u8 flags;
+ u8 def_q_idx;
+};
+
+static int
+qed_sp_fcoe_func_start(struct qed_hwfn *p_hwfn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct qed_fcoe_pf_params *fcoe_pf_params = NULL;
+ struct fcoe_init_ramrod_params *p_ramrod = NULL;
+ struct fcoe_conn_context *p_cxt = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct fcoe_init_func_ramrod_data *p_data;
+ int rc = 0;
+ struct qed_sp_init_data init_data;
+ struct qed_cxt_info cxt_info;
+ u32 dummy_cid;
+ u16 tmp;
+ u8 i;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = qed_spq_get_cid(p_hwfn);
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ FCOE_RAMROD_CMD_ID_INIT_FUNC,
+ PROTOCOLID_FCOE, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.fcoe_init;
+ p_data = &p_ramrod->init_ramrod_data;
+ fcoe_pf_params = &p_hwfn->pf_params.fcoe_pf_params;
+
+ p_data->mtu = cpu_to_le16(fcoe_pf_params->mtu);
+ tmp = cpu_to_le16(fcoe_pf_params->sq_num_pbl_pages);
+ p_data->sq_num_pages_in_pbl = tmp;
+
+ rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &dummy_cid);
+ if (rc)
+ return rc;
+
+ cxt_info.iid = dummy_cid;
+ rc = qed_cxt_get_cid_info(p_hwfn, &cxt_info);
+ if (rc) {
+ DP_NOTICE(p_hwfn, "Cannot find context info for dummy cid=%d\n",
+ dummy_cid);
+ return rc;
+ }
+ p_cxt = cxt_info.p_cxt;
+ SET_FIELD(p_cxt->tstorm_ag_context.flags3,
+ TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN, 1);
+
+ fcoe_pf_params->dummy_icid = (u16)dummy_cid;
+
+ tmp = cpu_to_le16(fcoe_pf_params->num_tasks);
+ p_data->func_params.num_tasks = tmp;
+ p_data->func_params.log_page_size = fcoe_pf_params->log_page_size;
+ p_data->func_params.debug_mode = fcoe_pf_params->debug_mode;
+
+ DMA_REGPAIR_LE(p_data->q_params.glbl_q_params_addr,
+ fcoe_pf_params->glbl_q_params_addr);
+
+ tmp = cpu_to_le16(fcoe_pf_params->cq_num_entries);
+ p_data->q_params.cq_num_entries = tmp;
+
+ tmp = cpu_to_le16(fcoe_pf_params->cmdq_num_entries);
+ p_data->q_params.cmdq_num_entries = tmp;
+
+ tmp = fcoe_pf_params->num_cqs;
+ p_data->q_params.num_queues = (u8)tmp;
+
+ tmp = (u16)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS];
+ p_data->q_params.queue_relative_offset = (u8)tmp;
+
+ for (i = 0; i < fcoe_pf_params->num_cqs; i++) {
+ tmp = cpu_to_le16(p_hwfn->sbs_info[i]->igu_sb_id);
+ p_data->q_params.cq_cmdq_sb_num_arr[i] = tmp;
+ }
+
+ p_data->q_params.cq_sb_pi = fcoe_pf_params->gl_rq_pi;
+ p_data->q_params.cmdq_sb_pi = fcoe_pf_params->gl_cmd_pi;
+
+ p_data->q_params.bdq_resource_id = FCOE_BDQ_ID(p_hwfn->port_id);
+
+ DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_RQ],
+ fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_RQ]);
+ p_data->q_params.bdq_pbl_num_entries[BDQ_ID_RQ] =
+ fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_RQ];
+ tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_RQ];
+ p_data->q_params.bdq_xoff_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
+ tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_RQ];
+ p_data->q_params.bdq_xon_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
+
+ DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_IMM_DATA],
+ fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]);
+ p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA] =
+ fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA];
+ tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA];
+ p_data->q_params.bdq_xoff_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
+ tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_IMM_DATA];
+ p_data->q_params.bdq_xon_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
+ tmp = fcoe_pf_params->rq_buffer_size;
+ p_data->q_params.rq_buffer_size = cpu_to_le16(tmp);
+
+ if (fcoe_pf_params->is_target) {
+ SET_FIELD(p_data->q_params.q_validity,
+ SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
+ if (p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA])
+ SET_FIELD(p_data->q_params.q_validity,
+ SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1);
+ SET_FIELD(p_data->q_params.q_validity,
+ SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1);
+ } else {
+ SET_FIELD(p_data->q_params.q_validity,
+ SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
+ }
+
+ rc = qed_spq_post(p_hwfn, p_ent, NULL);
+
+ return rc;
+}
+
+static int
+qed_sp_fcoe_conn_offload(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn *p_conn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct fcoe_conn_offload_ramrod_params *p_ramrod = NULL;
+ struct fcoe_conn_offload_ramrod_data *p_data;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ u16 pq_id = 0, tmp;
+ int rc;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_conn->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ FCOE_RAMROD_CMD_ID_OFFLOAD_CONN,
+ PROTOCOLID_FCOE, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.fcoe_conn_ofld;
+ p_data = &p_ramrod->offload_ramrod_data;
+
+ /* Transmission PQ is the first of the PF */
+ pq_id = qed_get_qm_pq(p_hwfn, PROTOCOLID_FCOE, NULL);
+ p_conn->physical_q0 = cpu_to_le16(pq_id);
+ p_data->physical_q0 = cpu_to_le16(pq_id);
+
+ p_data->conn_id = cpu_to_le16(p_conn->conn_id);
+ DMA_REGPAIR_LE(p_data->sq_pbl_addr, p_conn->sq_pbl_addr);
+ DMA_REGPAIR_LE(p_data->sq_curr_page_addr, p_conn->sq_curr_page_addr);
+ DMA_REGPAIR_LE(p_data->sq_next_page_addr, p_conn->sq_next_page_addr);
+ DMA_REGPAIR_LE(p_data->xferq_pbl_addr, p_conn->xferq_pbl_addr);
+ DMA_REGPAIR_LE(p_data->xferq_curr_page_addr, p_conn->xferq_addr[0]);
+ DMA_REGPAIR_LE(p_data->xferq_next_page_addr, p_conn->xferq_addr[1]);
+
+ DMA_REGPAIR_LE(p_data->respq_pbl_addr, p_conn->confq_pbl_addr);
+ DMA_REGPAIR_LE(p_data->respq_curr_page_addr, p_conn->confq_addr[0]);
+ DMA_REGPAIR_LE(p_data->respq_next_page_addr, p_conn->confq_addr[1]);
+
+ p_data->dst_mac_addr_lo = cpu_to_le16(p_conn->dst_mac_addr_lo);
+ p_data->dst_mac_addr_mid = cpu_to_le16(p_conn->dst_mac_addr_mid);
+ p_data->dst_mac_addr_hi = cpu_to_le16(p_conn->dst_mac_addr_hi);
+ p_data->src_mac_addr_lo = cpu_to_le16(p_conn->src_mac_addr_lo);
+ p_data->src_mac_addr_mid = cpu_to_le16(p_conn->src_mac_addr_mid);
+ p_data->src_mac_addr_hi = cpu_to_le16(p_conn->src_mac_addr_hi);
+
+ tmp = cpu_to_le16(p_conn->tx_max_fc_pay_len);
+ p_data->tx_max_fc_pay_len = tmp;
+ tmp = cpu_to_le16(p_conn->e_d_tov_timer_val);
+ p_data->e_d_tov_timer_val = tmp;
+ tmp = cpu_to_le16(p_conn->rec_tov_timer_val);
+ p_data->rec_rr_tov_timer_val = tmp;
+ tmp = cpu_to_le16(p_conn->rx_max_fc_pay_len);
+ p_data->rx_max_fc_pay_len = tmp;
+
+ p_data->vlan_tag = cpu_to_le16(p_conn->vlan_tag);
+ p_data->s_id.addr_hi = p_conn->s_id.addr_hi;
+ p_data->s_id.addr_mid = p_conn->s_id.addr_mid;
+ p_data->s_id.addr_lo = p_conn->s_id.addr_lo;
+ p_data->max_conc_seqs_c3 = p_conn->max_conc_seqs_c3;
+ p_data->d_id.addr_hi = p_conn->d_id.addr_hi;
+ p_data->d_id.addr_mid = p_conn->d_id.addr_mid;
+ p_data->d_id.addr_lo = p_conn->d_id.addr_lo;
+ p_data->flags = p_conn->flags;
+ p_data->def_q_idx = p_conn->def_q_idx;
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int
+qed_sp_fcoe_conn_destroy(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn *p_conn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct fcoe_conn_terminate_ramrod_params *p_ramrod = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ int rc = 0;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_conn->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ FCOE_RAMROD_CMD_ID_TERMINATE_CONN,
+ PROTOCOLID_FCOE, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.fcoe_conn_terminate;
+ DMA_REGPAIR_LE(p_ramrod->terminate_ramrod_data.terminate_params_addr,
+ p_conn->terminate_params);
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int
+qed_sp_fcoe_func_stop(struct qed_hwfn *p_hwfn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct qed_ptt *p_ptt = p_hwfn->p_main_ptt;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ u32 active_segs = 0;
+ int rc = 0;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_hwfn->pf_params.fcoe_pf_params.dummy_icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ FCOE_RAMROD_CMD_ID_DESTROY_FUNC,
+ PROTOCOLID_FCOE, &init_data);
+ if (rc)
+ return rc;
+
+ active_segs = qed_rd(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK);
+ active_segs &= ~BIT(QED_CXT_FCOE_TID_SEG);
+ qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK, active_segs);
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int
+qed_fcoe_allocate_connection(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn **p_out_conn)
+{
+ struct qed_fcoe_conn *p_conn = NULL;
+ void *p_addr;
+ u32 i;
+
+ spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
+ if (!list_empty(&p_hwfn->p_fcoe_info->free_list))
+ p_conn =
+ list_first_entry(&p_hwfn->p_fcoe_info->free_list,
+ struct qed_fcoe_conn, list_entry);
+ if (p_conn) {
+ list_del(&p_conn->list_entry);
+ spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
+ *p_out_conn = p_conn;
+ return 0;
+ }
+ spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
+
+ p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL);
+ if (!p_conn)
+ return -ENOMEM;
+
+ p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ &p_conn->xferq_pbl_addr, GFP_KERNEL);
+ if (!p_addr)
+ goto nomem_pbl_xferq;
+ p_conn->xferq_pbl_addr_virt_addr = p_addr;
+
+ for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
+ p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ &p_conn->xferq_addr[i], GFP_KERNEL);
+ if (!p_addr)
+ goto nomem_xferq;
+ p_conn->xferq_addr_virt_addr[i] = p_addr;
+
+ p_addr = p_conn->xferq_pbl_addr_virt_addr;
+ ((dma_addr_t *)p_addr)[i] = p_conn->xferq_addr[i];
+ }
+
+ p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ &p_conn->confq_pbl_addr, GFP_KERNEL);
+ if (!p_addr)
+ goto nomem_xferq;
+ p_conn->confq_pbl_addr_virt_addr = p_addr;
+
+ for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
+ p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ &p_conn->confq_addr[i], GFP_KERNEL);
+ if (!p_addr)
+ goto nomem_confq;
+ p_conn->confq_addr_virt_addr[i] = p_addr;
+
+ p_addr = p_conn->confq_pbl_addr_virt_addr;
+ ((dma_addr_t *)p_addr)[i] = p_conn->confq_addr[i];
+ }
+
+ p_conn->free_on_delete = true;
+ *p_out_conn = p_conn;
+ return 0;
+
+nomem_confq:
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->confq_pbl_addr_virt_addr,
+ p_conn->confq_pbl_addr);
+ for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++)
+ if (p_conn->confq_addr_virt_addr[i])
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->confq_addr_virt_addr[i],
+ p_conn->confq_addr[i]);
+nomem_xferq:
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->xferq_pbl_addr_virt_addr,
+ p_conn->xferq_pbl_addr);
+ for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++)
+ if (p_conn->xferq_addr_virt_addr[i])
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->xferq_addr_virt_addr[i],
+ p_conn->xferq_addr[i]);
+nomem_pbl_xferq:
+ kfree(p_conn);
+ return -ENOMEM;
+}
+
+static void qed_fcoe_free_connection(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn *p_conn)
+{
+ u32 i;
+
+ if (!p_conn)
+ return;
+
+ if (p_conn->confq_pbl_addr_virt_addr)
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->confq_pbl_addr_virt_addr,
+ p_conn->confq_pbl_addr);
+
+ for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
+ if (!p_conn->confq_addr_virt_addr[i])
+ continue;
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->confq_addr_virt_addr[i],
+ p_conn->confq_addr[i]);
+ }
+
+ if (p_conn->xferq_pbl_addr_virt_addr)
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->xferq_pbl_addr_virt_addr,
+ p_conn->xferq_pbl_addr);
+
+ for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
+ if (!p_conn->xferq_addr_virt_addr[i])
+ continue;
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->xferq_addr_virt_addr[i],
+ p_conn->xferq_addr[i]);
+ }
+ kfree(p_conn);
+}
+
+static void __iomem *qed_fcoe_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid)
+{
+ return (u8 __iomem *)p_hwfn->doorbells +
+ qed_db_addr(cid, DQ_DEMS_LEGACY);
+}
+
+static void __iomem *qed_fcoe_get_primary_bdq_prod(struct qed_hwfn *p_hwfn,
+ u8 bdq_id)
+{
+ u8 bdq_function_id = FCOE_BDQ_ID(p_hwfn->port_id);
+
+ return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_MSDM_RAM +
+ MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id, bdq_id);
+}
+
+static void __iomem *qed_fcoe_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn,
+ u8 bdq_id)
+{
+ u8 bdq_function_id = FCOE_BDQ_ID(p_hwfn->port_id);
+
+ return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_TSDM_RAM +
+ TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id, bdq_id);
+}
+
+struct qed_fcoe_info *qed_fcoe_alloc(struct qed_hwfn *p_hwfn)
+{
+ struct qed_fcoe_info *p_fcoe_info;
+
+ /* Allocate LL2's set struct */
+ p_fcoe_info = kzalloc(sizeof(*p_fcoe_info), GFP_KERNEL);
+ if (!p_fcoe_info) {
+ DP_NOTICE(p_hwfn, "Failed to allocate qed_fcoe_info'\n");
+ return NULL;
+ }
+ INIT_LIST_HEAD(&p_fcoe_info->free_list);
+ return p_fcoe_info;
+}
+
+void qed_fcoe_setup(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info)
+{
+ struct fcoe_task_context *p_task_ctx = NULL;
+ int rc;
+ u32 i;
+
+ spin_lock_init(&p_fcoe_info->lock);
+ for (i = 0; i < p_hwfn->pf_params.fcoe_pf_params.num_tasks; i++) {
+ rc = qed_cxt_get_task_ctx(p_hwfn, i,
+ QED_CTX_WORKING_MEM,
+ (void **)&p_task_ctx);
+ if (rc)
+ continue;
+
+ memset(p_task_ctx, 0, sizeof(struct fcoe_task_context));
+ SET_FIELD(p_task_ctx->timer_context.logical_client_0,
+ TIMERS_CONTEXT_VALIDLC0, 1);
+ SET_FIELD(p_task_ctx->timer_context.logical_client_1,
+ TIMERS_CONTEXT_VALIDLC1, 1);
+ SET_FIELD(p_task_ctx->tstorm_ag_context.flags0,
+ TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE, 1);
+ }
+}
+
+void qed_fcoe_free(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info)
+{
+ struct qed_fcoe_conn *p_conn = NULL;
+
+ if (!p_fcoe_info)
+ return;
+
+ while (!list_empty(&p_fcoe_info->free_list)) {
+ p_conn = list_first_entry(&p_fcoe_info->free_list,
+ struct qed_fcoe_conn, list_entry);
+ if (!p_conn)
+ break;
+ list_del(&p_conn->list_entry);
+ qed_fcoe_free_connection(p_hwfn, p_conn);
+ }
+
+ kfree(p_fcoe_info);
+}
+
+static int
+qed_fcoe_acquire_connection(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn *p_in_conn,
+ struct qed_fcoe_conn **p_out_conn)
+{
+ struct qed_fcoe_conn *p_conn = NULL;
+ int rc = 0;
+ u32 icid;
+
+ spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
+ rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &icid);
+ spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
+ if (rc)
+ return rc;
+
+ /* Use input connection [if provided] or allocate a new one */
+ if (p_in_conn) {
+ p_conn = p_in_conn;
+ } else {
+ rc = qed_fcoe_allocate_connection(p_hwfn, &p_conn);
+ if (rc) {
+ spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
+ qed_cxt_release_cid(p_hwfn, icid);
+ spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
+ return rc;
+ }
+ }
+
+ p_conn->icid = icid;
+ p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid;
+ *p_out_conn = p_conn;
+
+ return rc;
+}
+
+static void qed_fcoe_release_connection(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn *p_conn)
+{
+ spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
+ list_add_tail(&p_conn->list_entry, &p_hwfn->p_fcoe_info->free_list);
+ qed_cxt_release_cid(p_hwfn, p_conn->icid);
+ spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
+}
+
+static void _qed_fcoe_get_tstats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_fcoe_stats *p_stats)
+{
+ struct fcoe_rx_stat tstats;
+ u32 tstats_addr;
+
+ memset(&tstats, 0, sizeof(tstats));
+ tstats_addr = BAR0_MAP_REG_TSDM_RAM +
+ TSTORM_FCOE_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats));
+
+ p_stats->fcoe_rx_byte_cnt = HILO_64_REGPAIR(tstats.fcoe_rx_byte_cnt);
+ p_stats->fcoe_rx_data_pkt_cnt =
+ HILO_64_REGPAIR(tstats.fcoe_rx_data_pkt_cnt);
+ p_stats->fcoe_rx_xfer_pkt_cnt =
+ HILO_64_REGPAIR(tstats.fcoe_rx_xfer_pkt_cnt);
+ p_stats->fcoe_rx_other_pkt_cnt =
+ HILO_64_REGPAIR(tstats.fcoe_rx_other_pkt_cnt);
+
+ p_stats->fcoe_silent_drop_pkt_cmdq_full_cnt =
+ le32_to_cpu(tstats.fcoe_silent_drop_pkt_cmdq_full_cnt);
+ p_stats->fcoe_silent_drop_pkt_rq_full_cnt =
+ le32_to_cpu(tstats.fcoe_silent_drop_pkt_rq_full_cnt);
+ p_stats->fcoe_silent_drop_pkt_crc_error_cnt =
+ le32_to_cpu(tstats.fcoe_silent_drop_pkt_crc_error_cnt);
+ p_stats->fcoe_silent_drop_pkt_task_invalid_cnt =
+ le32_to_cpu(tstats.fcoe_silent_drop_pkt_task_invalid_cnt);
+ p_stats->fcoe_silent_drop_total_pkt_cnt =
+ le32_to_cpu(tstats.fcoe_silent_drop_total_pkt_cnt);
+}
+
+static void _qed_fcoe_get_pstats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_fcoe_stats *p_stats)
+{
+ struct fcoe_tx_stat pstats;
+ u32 pstats_addr;
+
+ memset(&pstats, 0, sizeof(pstats));
+ pstats_addr = BAR0_MAP_REG_PSDM_RAM +
+ PSTORM_FCOE_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats));
+
+ p_stats->fcoe_tx_byte_cnt = HILO_64_REGPAIR(pstats.fcoe_tx_byte_cnt);
+ p_stats->fcoe_tx_data_pkt_cnt =
+ HILO_64_REGPAIR(pstats.fcoe_tx_data_pkt_cnt);
+ p_stats->fcoe_tx_xfer_pkt_cnt =
+ HILO_64_REGPAIR(pstats.fcoe_tx_xfer_pkt_cnt);
+ p_stats->fcoe_tx_other_pkt_cnt =
+ HILO_64_REGPAIR(pstats.fcoe_tx_other_pkt_cnt);
+}
+
+static int qed_fcoe_get_stats(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_stats *p_stats)
+{
+ struct qed_ptt *p_ptt;
+
+ memset(p_stats, 0, sizeof(*p_stats));
+
+ p_ptt = qed_ptt_acquire(p_hwfn);
+
+ if (!p_ptt) {
+ DP_ERR(p_hwfn, "Failed to acquire ptt\n");
+ return -EINVAL;
+ }
+
+ _qed_fcoe_get_tstats(p_hwfn, p_ptt, p_stats);
+ _qed_fcoe_get_pstats(p_hwfn, p_ptt, p_stats);
+
+ qed_ptt_release(p_hwfn, p_ptt);
+
+ return 0;
+}
+
+struct qed_hash_fcoe_con {
+ struct hlist_node node;
+ struct qed_fcoe_conn *con;
+};
+
+static int qed_fill_fcoe_dev_info(struct qed_dev *cdev,
+ struct qed_dev_fcoe_info *info)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ int rc;
+
+ memset(info, 0, sizeof(*info));
+ rc = qed_fill_dev_info(cdev, &info->common);
+
+ info->primary_dbq_rq_addr =
+ qed_fcoe_get_primary_bdq_prod(hwfn, BDQ_ID_RQ);
+ info->secondary_bdq_rq_addr =
+ qed_fcoe_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ);
+
+ return rc;
+}
+
+static void qed_register_fcoe_ops(struct qed_dev *cdev,
+ struct qed_fcoe_cb_ops *ops, void *cookie)
+{
+ cdev->protocol_ops.fcoe = ops;
+ cdev->ops_cookie = cookie;
+}
+
+static struct qed_hash_fcoe_con *qed_fcoe_get_hash(struct qed_dev *cdev,
+ u32 handle)
+{
+ struct qed_hash_fcoe_con *hash_con = NULL;
+
+ if (!(cdev->flags & QED_FLAG_STORAGE_STARTED))
+ return NULL;
+
+ hash_for_each_possible(cdev->connections, hash_con, node, handle) {
+ if (hash_con->con->icid == handle)
+ break;
+ }
+
+ if (!hash_con || (hash_con->con->icid != handle))
+ return NULL;
+
+ return hash_con;
+}
+
+static int qed_fcoe_stop(struct qed_dev *cdev)
+{
+ int rc;
+
+ if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) {
+ DP_NOTICE(cdev, "fcoe already stopped\n");
+ return 0;
+ }
+
+ if (!hash_empty(cdev->connections)) {
+ DP_NOTICE(cdev,
+ "Can't stop fcoe - not all connections were returned\n");
+ return -EINVAL;
+ }
+
+ /* Stop the fcoe */
+ rc = qed_sp_fcoe_func_stop(QED_LEADING_HWFN(cdev),
+ QED_SPQ_MODE_EBLOCK, NULL);
+ cdev->flags &= ~QED_FLAG_STORAGE_STARTED;
+
+ return rc;
+}
+
+static int qed_fcoe_start(struct qed_dev *cdev, struct qed_fcoe_tid *tasks)
+{
+ int rc;
+
+ if (cdev->flags & QED_FLAG_STORAGE_STARTED) {
+ DP_NOTICE(cdev, "fcoe already started;\n");
+ return 0;
+ }
+
+ rc = qed_sp_fcoe_func_start(QED_LEADING_HWFN(cdev),
+ QED_SPQ_MODE_EBLOCK, NULL);
+ if (rc) {
+ DP_NOTICE(cdev, "Failed to start fcoe\n");
+ return rc;
+ }
+
+ cdev->flags |= QED_FLAG_STORAGE_STARTED;
+ hash_init(cdev->connections);
+
+ if (tasks) {
+ struct qed_tid_mem *tid_info = kzalloc(sizeof(*tid_info),
+ GFP_ATOMIC);
+
+ if (!tid_info) {
+ DP_NOTICE(cdev,
+ "Failed to allocate tasks information\n");
+ qed_fcoe_stop(cdev);
+ return -ENOMEM;
+ }
+
+ rc = qed_cxt_get_tid_mem_info(QED_LEADING_HWFN(cdev), tid_info);
+ if (rc) {
+ DP_NOTICE(cdev, "Failed to gather task information\n");
+ qed_fcoe_stop(cdev);
+ kfree(tid_info);
+ return rc;
+ }
+
+ /* Fill task information */
+ tasks->size = tid_info->tid_size;
+ tasks->num_tids_per_block = tid_info->num_tids_per_block;
+ memcpy(tasks->blocks, tid_info->blocks,
+ MAX_TID_BLOCKS_FCOE * sizeof(u8 *));
+
+ kfree(tid_info);
+ }
+
+ return 0;
+}
+
+static int qed_fcoe_acquire_conn(struct qed_dev *cdev,
+ u32 *handle,
+ u32 *fw_cid, void __iomem **p_doorbell)
+{
+ struct qed_hash_fcoe_con *hash_con;
+ int rc;
+
+ /* Allocate a hashed connection */
+ hash_con = kzalloc(sizeof(*hash_con), GFP_KERNEL);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to allocate hashed connection\n");
+ return -ENOMEM;
+ }
+
+ /* Acquire the connection */
+ rc = qed_fcoe_acquire_connection(QED_LEADING_HWFN(cdev), NULL,
+ &hash_con->con);
+ if (rc) {
+ DP_NOTICE(cdev, "Failed to acquire Connection\n");
+ kfree(hash_con);
+ return rc;
+ }
+
+ /* Added the connection to hash table */
+ *handle = hash_con->con->icid;
+ *fw_cid = hash_con->con->fw_cid;
+ hash_add(cdev->connections, &hash_con->node, *handle);
+
+ if (p_doorbell)
+ *p_doorbell = qed_fcoe_get_db_addr(QED_LEADING_HWFN(cdev),
+ *handle);
+
+ return 0;
+}
+
+static int qed_fcoe_release_conn(struct qed_dev *cdev, u32 handle)
+{
+ struct qed_hash_fcoe_con *hash_con;
+
+ hash_con = qed_fcoe_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ hlist_del(&hash_con->node);
+ qed_fcoe_release_connection(QED_LEADING_HWFN(cdev), hash_con->con);
+ kfree(hash_con);
+
+ return 0;
+}
+
+static int qed_fcoe_offload_conn(struct qed_dev *cdev,
+ u32 handle,
+ struct qed_fcoe_params_offload *conn_info)
+{
+ struct qed_hash_fcoe_con *hash_con;
+ struct qed_fcoe_conn *con;
+
+ hash_con = qed_fcoe_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ /* Update the connection with information from the params */
+ con = hash_con->con;
+
+ con->sq_pbl_addr = conn_info->sq_pbl_addr;
+ con->sq_curr_page_addr = conn_info->sq_curr_page_addr;
+ con->sq_next_page_addr = conn_info->sq_next_page_addr;
+ con->tx_max_fc_pay_len = conn_info->tx_max_fc_pay_len;
+ con->e_d_tov_timer_val = conn_info->e_d_tov_timer_val;
+ con->rec_tov_timer_val = conn_info->rec_tov_timer_val;
+ con->rx_max_fc_pay_len = conn_info->rx_max_fc_pay_len;
+ con->vlan_tag = conn_info->vlan_tag;
+ con->max_conc_seqs_c3 = conn_info->max_conc_seqs_c3;
+ con->flags = conn_info->flags;
+ con->def_q_idx = conn_info->def_q_idx;
+
+ con->src_mac_addr_hi = (conn_info->src_mac[5] << 8) |
+ conn_info->src_mac[4];
+ con->src_mac_addr_mid = (conn_info->src_mac[3] << 8) |
+ conn_info->src_mac[2];
+ con->src_mac_addr_lo = (conn_info->src_mac[1] << 8) |
+ conn_info->src_mac[0];
+ con->dst_mac_addr_hi = (conn_info->dst_mac[5] << 8) |
+ conn_info->dst_mac[4];
+ con->dst_mac_addr_mid = (conn_info->dst_mac[3] << 8) |
+ conn_info->dst_mac[2];
+ con->dst_mac_addr_lo = (conn_info->dst_mac[1] << 8) |
+ conn_info->dst_mac[0];
+
+ con->s_id.addr_hi = conn_info->s_id.addr_hi;
+ con->s_id.addr_mid = conn_info->s_id.addr_mid;
+ con->s_id.addr_lo = conn_info->s_id.addr_lo;
+ con->d_id.addr_hi = conn_info->d_id.addr_hi;
+ con->d_id.addr_mid = conn_info->d_id.addr_mid;
+ con->d_id.addr_lo = conn_info->d_id.addr_lo;
+
+ return qed_sp_fcoe_conn_offload(QED_LEADING_HWFN(cdev), con,
+ QED_SPQ_MODE_EBLOCK, NULL);
+}
+
+static int qed_fcoe_destroy_conn(struct qed_dev *cdev,
+ u32 handle, dma_addr_t terminate_params)
+{
+ struct qed_hash_fcoe_con *hash_con;
+ struct qed_fcoe_conn *con;
+
+ hash_con = qed_fcoe_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ /* Update the connection with information from the params */
+ con = hash_con->con;
+ con->terminate_params = terminate_params;
+
+ return qed_sp_fcoe_conn_destroy(QED_LEADING_HWFN(cdev), con,
+ QED_SPQ_MODE_EBLOCK, NULL);
+}
+
+static int qed_fcoe_stats(struct qed_dev *cdev, struct qed_fcoe_stats *stats)
+{
+ return qed_fcoe_get_stats(QED_LEADING_HWFN(cdev), stats);
+}
+
+void qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
+ struct qed_mcp_fcoe_stats *stats)
+{
+ struct qed_fcoe_stats proto_stats;
+
+ /* Retrieve FW statistics */
+ memset(&proto_stats, 0, sizeof(proto_stats));
+ if (qed_fcoe_stats(cdev, &proto_stats)) {
+ DP_VERBOSE(cdev, QED_MSG_STORAGE,
+ "Failed to collect FCoE statistics\n");
+ return;
+ }
+
+ /* Translate FW statistics into struct */
+ stats->rx_pkts = proto_stats.fcoe_rx_data_pkt_cnt +
+ proto_stats.fcoe_rx_xfer_pkt_cnt +
+ proto_stats.fcoe_rx_other_pkt_cnt;
+ stats->tx_pkts = proto_stats.fcoe_tx_data_pkt_cnt +
+ proto_stats.fcoe_tx_xfer_pkt_cnt +
+ proto_stats.fcoe_tx_other_pkt_cnt;
+ stats->fcs_err = proto_stats.fcoe_silent_drop_pkt_crc_error_cnt;
+
+ /* Request protocol driver to fill-in the rest */
+ if (cdev->protocol_ops.fcoe && cdev->ops_cookie) {
+ struct qed_fcoe_cb_ops *ops = cdev->protocol_ops.fcoe;
+ void *cookie = cdev->ops_cookie;
+
+ if (ops->get_login_failures)
+ stats->login_failure = ops->get_login_failures(cookie);
+ }
+}
+
+static const struct qed_fcoe_ops qed_fcoe_ops_pass = {
+ .common = &qed_common_ops_pass,
+ .ll2 = &qed_ll2_ops_pass,
+ .fill_dev_info = &qed_fill_fcoe_dev_info,
+ .start = &qed_fcoe_start,
+ .stop = &qed_fcoe_stop,
+ .register_ops = &qed_register_fcoe_ops,
+ .acquire_conn = &qed_fcoe_acquire_conn,
+ .release_conn = &qed_fcoe_release_conn,
+ .offload_conn = &qed_fcoe_offload_conn,
+ .destroy_conn = &qed_fcoe_destroy_conn,
+ .get_stats = &qed_fcoe_stats,
+};
+
+const struct qed_fcoe_ops *qed_get_fcoe_ops(void)
+{
+ return &qed_fcoe_ops_pass;
+}
+EXPORT_SYMBOL(qed_get_fcoe_ops);
+
+void qed_put_fcoe_ops(void)
+{
+}
+EXPORT_SYMBOL(qed_put_fcoe_ops);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_fcoe.h b/drivers/net/ethernet/qlogic/qed/qed_fcoe.h
new file mode 100644
index 0000000..72a3643
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_fcoe.h
@@ -0,0 +1,52 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2016 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#ifndef _QED_FCOE_H
+#define _QED_FCOE_H
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/qed/qed_fcoe_if.h>
+#include <linux/qed/qed_chain.h>
+#include "qed.h"
+#include "qed_hsi.h"
+#include "qed_mcp.h"
+#include "qed_sp.h"
+
+struct qed_fcoe_info {
+ spinlock_t lock; /* Connection resources. */
+ struct list_head free_list;
+};
+
+#if IS_ENABLED(CONFIG_QED_FCOE)
+struct qed_fcoe_info *qed_fcoe_alloc(struct qed_hwfn *p_hwfn);
+
+void qed_fcoe_setup(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info);
+
+void qed_fcoe_free(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info);
+void qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
+ struct qed_mcp_fcoe_stats *stats);
+#else /* CONFIG_QED_FCOE */
+static inline struct qed_fcoe_info *
+qed_fcoe_alloc(struct qed_hwfn *p_hwfn) { return NULL; }
+static inline void
+qed_fcoe_setup(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info) {}
+static inline void
+qed_fcoe_free(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info) {}
+static inline void
+qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
+ struct qed_mcp_fcoe_stats *stats) {}
+#endif /* CONFIG_QED_FCOE */
+
+#ifdef CONFIG_QED_LL2
+extern const struct qed_common_ops qed_common_ops_pass;
+extern const struct qed_ll2_ops qed_ll2_ops_pass;
+#endif
+
+#endif /* _QED_FCOE_H */
diff --git a/drivers/net/ethernet/qlogic/qed/qed_hsi.h b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
index 5d31189..37c2bfb 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_hsi.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
@@ -43,10 +43,12 @@
#include <linux/qed/common_hsi.h>
#include <linux/qed/storage_common.h>
#include <linux/qed/tcp_common.h>
+#include <linux/qed/fcoe_common.h>
#include <linux/qed/eth_common.h>
#include <linux/qed/iscsi_common.h>
#include <linux/qed/rdma_common.h>
#include <linux/qed/roce_common.h>
+#include <linux/qed/qed_fcoe_if.h>
struct qed_hwfn;
struct qed_ptt;
@@ -937,7 +939,7 @@ struct mstorm_vf_zone {
enum personality_type {
BAD_PERSONALITY_TYP,
PERSONALITY_ISCSI,
- PERSONALITY_RESERVED2,
+ PERSONALITY_FCOE,
PERSONALITY_RDMA_AND_ETH,
PERSONALITY_RESERVED3,
PERSONALITY_CORE,
@@ -3473,6 +3475,10 @@ void qed_set_geneve_enable(struct qed_hwfn *p_hwfn,
#define TSTORM_RDMA_QUEUE_STAT_OFFSET(rdma_stat_counter_id) \
(IRO[46].base + ((rdma_stat_counter_id) * IRO[46].m1))
#define TSTORM_RDMA_QUEUE_STAT_SIZE (IRO[46].size)
+#define TSTORM_FCOE_RX_STATS_OFFSET(pf_id) \
+ (IRO[43].base + ((pf_id) * IRO[43].m1))
+#define PSTORM_FCOE_TX_STATS_OFFSET(pf_id) \
+ (IRO[44].base + ((pf_id) * IRO[44].m1))
static const struct iro iro_arr[47] = {
{0x0, 0x0, 0x0, 0x0, 0x8},
@@ -7407,6 +7413,769 @@ struct ystorm_roce_resp_conn_ag_ctx {
__le32 reg3;
};
+struct ystorm_fcoe_conn_st_ctx {
+ u8 func_mode;
+ u8 cos;
+ u8 conf_version;
+ u8 eth_hdr_size;
+ __le16 stat_ram_addr;
+ __le16 mtu;
+ __le16 max_fc_payload_len;
+ __le16 tx_max_fc_pay_len;
+ u8 fcp_cmd_size;
+ u8 fcp_rsp_size;
+ __le16 mss;
+ struct regpair reserved;
+ u8 protection_info_flags;
+#define YSTORM_FCOE_CONN_ST_CTX_SUPPORT_PROTECTION_MASK 0x1
+#define YSTORM_FCOE_CONN_ST_CTX_SUPPORT_PROTECTION_SHIFT 0
+#define YSTORM_FCOE_CONN_ST_CTX_VALID_MASK 0x1
+#define YSTORM_FCOE_CONN_ST_CTX_VALID_SHIFT 1
+#define YSTORM_FCOE_CONN_ST_CTX_RESERVED1_MASK 0x3F
+#define YSTORM_FCOE_CONN_ST_CTX_RESERVED1_SHIFT 2
+ u8 dst_protection_per_mss;
+ u8 src_protection_per_mss;
+ u8 ptu_log_page_size;
+ u8 flags;
+#define YSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_MASK 0x1
+#define YSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_SHIFT 0
+#define YSTORM_FCOE_CONN_ST_CTX_OUTER_VLAN_FLAG_MASK 0x1
+#define YSTORM_FCOE_CONN_ST_CTX_OUTER_VLAN_FLAG_SHIFT 1
+#define YSTORM_FCOE_CONN_ST_CTX_RSRV_MASK 0x3F
+#define YSTORM_FCOE_CONN_ST_CTX_RSRV_SHIFT 2
+ u8 fcp_xfer_size;
+ u8 reserved3[2];
+};
+
+struct fcoe_vlan_fields {
+ __le16 fields;
+#define FCOE_VLAN_FIELDS_VID_MASK 0xFFF
+#define FCOE_VLAN_FIELDS_VID_SHIFT 0
+#define FCOE_VLAN_FIELDS_CLI_MASK 0x1
+#define FCOE_VLAN_FIELDS_CLI_SHIFT 12
+#define FCOE_VLAN_FIELDS_PRI_MASK 0x7
+#define FCOE_VLAN_FIELDS_PRI_SHIFT 13
+};
+
+union fcoe_vlan_field_union {
+ struct fcoe_vlan_fields fields;
+ __le16 val;
+};
+
+union fcoe_vlan_vif_field_union {
+ union fcoe_vlan_field_union vlan;
+ __le16 vif;
+};
+
+struct pstorm_fcoe_eth_context_section {
+ u8 remote_addr_3;
+ u8 remote_addr_2;
+ u8 remote_addr_1;
+ u8 remote_addr_0;
+ u8 local_addr_1;
+ u8 local_addr_0;
+ u8 remote_addr_5;
+ u8 remote_addr_4;
+ u8 local_addr_5;
+ u8 local_addr_4;
+ u8 local_addr_3;
+ u8 local_addr_2;
+ union fcoe_vlan_vif_field_union vif_outer_vlan;
+ __le16 vif_outer_eth_type;
+ union fcoe_vlan_vif_field_union inner_vlan;
+ __le16 inner_eth_type;
+};
+
+struct pstorm_fcoe_conn_st_ctx {
+ u8 func_mode;
+ u8 cos;
+ u8 conf_version;
+ u8 rsrv;
+ __le16 stat_ram_addr;
+ __le16 mss;
+ struct regpair abts_cleanup_addr;
+ struct pstorm_fcoe_eth_context_section eth;
+ u8 sid_2;
+ u8 sid_1;
+ u8 sid_0;
+ u8 flags;
+#define PSTORM_FCOE_CONN_ST_CTX_VNTAG_VLAN_MASK 0x1
+#define PSTORM_FCOE_CONN_ST_CTX_VNTAG_VLAN_SHIFT 0
+#define PSTORM_FCOE_CONN_ST_CTX_SUPPORT_REC_RR_TOV_MASK 0x1
+#define PSTORM_FCOE_CONN_ST_CTX_SUPPORT_REC_RR_TOV_SHIFT 1
+#define PSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_MASK 0x1
+#define PSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_SHIFT 2
+#define PSTORM_FCOE_CONN_ST_CTX_OUTER_VLAN_FLAG_MASK 0x1
+#define PSTORM_FCOE_CONN_ST_CTX_OUTER_VLAN_FLAG_SHIFT 3
+#define PSTORM_FCOE_CONN_ST_CTX_RESERVED_MASK 0xF
+#define PSTORM_FCOE_CONN_ST_CTX_RESERVED_SHIFT 4
+ u8 did_2;
+ u8 did_1;
+ u8 did_0;
+ u8 src_mac_index;
+ __le16 rec_rr_tov_val;
+ u8 q_relative_offset;
+ u8 reserved1;
+};
+
+struct xstorm_fcoe_conn_st_ctx {
+ u8 func_mode;
+ u8 src_mac_index;
+ u8 conf_version;
+ u8 cached_wqes_avail;
+ __le16 stat_ram_addr;
+ u8 flags;
+#define XSTORM_FCOE_CONN_ST_CTX_SQ_DEFERRED_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_SQ_DEFERRED_SHIFT 0
+#define XSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_SHIFT 1
+#define XSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_ORIG_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_ORIG_SHIFT 2
+#define XSTORM_FCOE_CONN_ST_CTX_LAST_QUEUE_HANDLED_MASK 0x3
+#define XSTORM_FCOE_CONN_ST_CTX_LAST_QUEUE_HANDLED_SHIFT 3
+#define XSTORM_FCOE_CONN_ST_CTX_RSRV_MASK 0x7
+#define XSTORM_FCOE_CONN_ST_CTX_RSRV_SHIFT 5
+ u8 cached_wqes_offset;
+ u8 reserved2;
+ u8 eth_hdr_size;
+ u8 seq_id;
+ u8 max_conc_seqs;
+ __le16 num_pages_in_pbl;
+ __le16 reserved;
+ struct regpair sq_pbl_addr;
+ struct regpair sq_curr_page_addr;
+ struct regpair sq_next_page_addr;
+ struct regpair xferq_pbl_addr;
+ struct regpair xferq_curr_page_addr;
+ struct regpair xferq_next_page_addr;
+ struct regpair respq_pbl_addr;
+ struct regpair respq_curr_page_addr;
+ struct regpair respq_next_page_addr;
+ __le16 mtu;
+ __le16 tx_max_fc_pay_len;
+ __le16 max_fc_payload_len;
+ __le16 min_frame_size;
+ __le16 sq_pbl_next_index;
+ __le16 respq_pbl_next_index;
+ u8 fcp_cmd_byte_credit;
+ u8 fcp_rsp_byte_credit;
+ __le16 protection_info;
+#define XSTORM_FCOE_CONN_ST_CTX_PROTECTION_PERF_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_PROTECTION_PERF_SHIFT 0
+#define XSTORM_FCOE_CONN_ST_CTX_SUPPORT_PROTECTION_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_SUPPORT_PROTECTION_SHIFT 1
+#define XSTORM_FCOE_CONN_ST_CTX_VALID_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_VALID_SHIFT 2
+#define XSTORM_FCOE_CONN_ST_CTX_FRAME_PROT_ALIGNED_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_FRAME_PROT_ALIGNED_SHIFT 3
+#define XSTORM_FCOE_CONN_ST_CTX_RESERVED3_MASK 0xF
+#define XSTORM_FCOE_CONN_ST_CTX_RESERVED3_SHIFT 4
+#define XSTORM_FCOE_CONN_ST_CTX_DST_PROTECTION_PER_MSS_MASK 0xFF
+#define XSTORM_FCOE_CONN_ST_CTX_DST_PROTECTION_PER_MSS_SHIFT 8
+ __le16 xferq_pbl_next_index;
+ __le16 page_size;
+ u8 mid_seq;
+ u8 fcp_xfer_byte_credit;
+ u8 reserved1[2];
+ struct fcoe_wqe cached_wqes[16];
+};
+
+struct xstorm_fcoe_conn_ag_ctx {
+ u8 reserved0;
+ u8 fcoe_state;
+ u8 flags0;
+#define XSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM0_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM0_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED1_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED1_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED2_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED2_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM3_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM3_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED3_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED3_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED4_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED4_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED5_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED5_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED6_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED6_SHIFT 7
+ u8 flags1;
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED7_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED7_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED8_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED8_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED9_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED9_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_BIT11_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT11_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_BIT12_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT12_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_BIT13_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT13_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_BIT14_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT14_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_BIT15_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT15_SHIFT 7
+ u8 flags2;
+#define XSTORM_FCOE_CONN_AG_CTX_CF0_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF0_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF1_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF1_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF2_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF2_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF3_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF3_SHIFT 6
+ u8 flags3;
+#define XSTORM_FCOE_CONN_AG_CTX_CF4_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF4_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF5_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF5_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF6_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF6_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF7_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF7_SHIFT 6
+ u8 flags4;
+#define XSTORM_FCOE_CONN_AG_CTX_CF8_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF8_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF9_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF9_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF10_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF10_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF11_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF11_SHIFT 6
+ u8 flags5;
+#define XSTORM_FCOE_CONN_AG_CTX_CF12_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF12_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF13_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF13_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF14_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF14_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF15_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF15_SHIFT 6
+ u8 flags6;
+#define XSTORM_FCOE_CONN_AG_CTX_CF16_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF16_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF17_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF17_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF18_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF18_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_DQ_CF_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_DQ_CF_SHIFT 6
+ u8 flags7;
+#define XSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED10_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED10_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_SLOW_PATH_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_SLOW_PATH_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF0EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF0EN_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_CF1EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF1EN_SHIFT 7
+ u8 flags8;
+#define XSTORM_FCOE_CONN_AG_CTX_CF2EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF2EN_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF3EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF3EN_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_CF4EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF4EN_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF5EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF5EN_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_CF6EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF6EN_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF7EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF7EN_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_CF8EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF8EN_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_CF9EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF9EN_SHIFT 7
+ u8 flags9;
+#define XSTORM_FCOE_CONN_AG_CTX_CF10EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF10EN_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF11EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF11EN_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_CF12EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF12EN_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF13EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF13EN_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_CF14EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF14EN_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF15EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF15EN_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_CF16EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF16EN_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_CF17EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF17EN_SHIFT 7
+ u8 flags10;
+#define XSTORM_FCOE_CONN_AG_CTX_CF18EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF18EN_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_DQ_CF_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_DQ_CF_EN_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_EN_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED11_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED11_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_SLOW_PATH_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_SLOW_PATH_EN_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF23EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF23EN_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED12_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED12_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED13_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED13_SHIFT 7
+ u8 flags11;
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED14_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED14_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED15_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED15_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED16_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED16_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_RULE5EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE5EN_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_RULE6EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE6EN_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_RULE7EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE7EN_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED1_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED1_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_XFERQ_DECISION_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_XFERQ_DECISION_EN_SHIFT 7
+ u8 flags12;
+#define XSTORM_FCOE_CONN_AG_CTX_SQ_DECISION_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_SQ_DECISION_EN_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RULE11EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE11EN_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED2_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED2_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED3_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED3_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_RULE14EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE14EN_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_RULE15EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE15EN_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_RULE16EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE16EN_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_RULE17EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE17EN_SHIFT 7
+ u8 flags13;
+#define XSTORM_FCOE_CONN_AG_CTX_RESPQ_DECISION_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESPQ_DECISION_EN_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RULE19EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE19EN_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED4_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED4_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED5_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED5_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED6_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED6_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED7_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED7_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED8_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED8_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED9_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED9_SHIFT 7
+ u8 flags14;
+#define XSTORM_FCOE_CONN_AG_CTX_BIT16_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT16_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_BIT17_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT17_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT18_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT18_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_BIT19_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT19_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_BIT20_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT20_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_BIT21_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT21_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_CF23_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF23_SHIFT 6
+ u8 byte2;
+ __le16 physical_q0;
+ __le16 word1;
+ __le16 word2;
+ __le16 sq_cons;
+ __le16 sq_prod;
+ __le16 xferq_prod;
+ __le16 xferq_cons;
+ u8 byte3;
+ u8 byte4;
+ u8 byte5;
+ u8 byte6;
+ __le32 remain_io;
+ __le32 reg1;
+ __le32 reg2;
+ __le32 reg3;
+ __le32 reg4;
+ __le32 reg5;
+ __le32 reg6;
+ __le16 respq_prod;
+ __le16 respq_cons;
+ __le16 word9;
+ __le16 word10;
+ __le32 reg7;
+ __le32 reg8;
+};
+
+struct ustorm_fcoe_conn_st_ctx {
+ struct regpair respq_pbl_addr;
+ __le16 num_pages_in_pbl;
+ u8 ptu_log_page_size;
+ u8 log_page_size;
+ __le16 respq_prod;
+ u8 reserved[2];
+};
+
+struct tstorm_fcoe_conn_ag_ctx {
+ u8 reserved0;
+ u8 fcoe_state;
+ u8 flags0;
+#define TSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM0_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM0_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_BIT1_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT1_SHIFT 1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT2_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT2_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_BIT3_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT3_SHIFT 3
+#define TSTORM_FCOE_CONN_AG_CTX_BIT4_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT4_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_BIT5_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT5_SHIFT 5
+#define TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_SHIFT 6
+ u8 flags1;
+#define TSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_CF_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_CF_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_CF2_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF2_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_TIMER_STOP_ALL_CF_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_TIMER_STOP_ALL_CF_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_CF4_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF4_SHIFT 6
+ u8 flags2;
+#define TSTORM_FCOE_CONN_AG_CTX_CF5_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF5_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_CF6_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF6_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_CF7_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF7_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_CF8_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF8_SHIFT 6
+ u8 flags3;
+#define TSTORM_FCOE_CONN_AG_CTX_CF9_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF9_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_CF10_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF10_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_CF_EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_CF_EN_SHIFT 5
+#define TSTORM_FCOE_CONN_AG_CTX_CF2EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF2EN_SHIFT 6
+#define TSTORM_FCOE_CONN_AG_CTX_TIMER_STOP_ALL_CF_EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_TIMER_STOP_ALL_CF_EN_SHIFT 7
+ u8 flags4;
+#define TSTORM_FCOE_CONN_AG_CTX_CF4EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF4EN_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_CF5EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF5EN_SHIFT 1
+#define TSTORM_FCOE_CONN_AG_CTX_CF6EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF6EN_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_CF7EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF7EN_SHIFT 3
+#define TSTORM_FCOE_CONN_AG_CTX_CF8EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF8EN_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_CF9EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF9EN_SHIFT 5
+#define TSTORM_FCOE_CONN_AG_CTX_CF10EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF10EN_SHIFT 6
+#define TSTORM_FCOE_CONN_AG_CTX_RULE0EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE0EN_SHIFT 7
+ u8 flags5;
+#define TSTORM_FCOE_CONN_AG_CTX_RULE1EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE1EN_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_RULE2EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE2EN_SHIFT 1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE3EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE3EN_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_RULE4EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE4EN_SHIFT 3
+#define TSTORM_FCOE_CONN_AG_CTX_RULE5EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE5EN_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_RULE6EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE6EN_SHIFT 5
+#define TSTORM_FCOE_CONN_AG_CTX_RULE7EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE7EN_SHIFT 6
+#define TSTORM_FCOE_CONN_AG_CTX_RULE8EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE8EN_SHIFT 7
+ __le32 reg0;
+ __le32 reg1;
+};
+
+struct ustorm_fcoe_conn_ag_ctx {
+ u8 byte0;
+ u8 byte1;
+ u8 flags0;
+#define USTORM_FCOE_CONN_AG_CTX_BIT0_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_BIT0_SHIFT 0
+#define USTORM_FCOE_CONN_AG_CTX_BIT1_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_BIT1_SHIFT 1
+#define USTORM_FCOE_CONN_AG_CTX_CF0_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF0_SHIFT 2
+#define USTORM_FCOE_CONN_AG_CTX_CF1_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF1_SHIFT 4
+#define USTORM_FCOE_CONN_AG_CTX_CF2_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF2_SHIFT 6
+ u8 flags1;
+#define USTORM_FCOE_CONN_AG_CTX_CF3_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF3_SHIFT 0
+#define USTORM_FCOE_CONN_AG_CTX_CF4_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF4_SHIFT 2
+#define USTORM_FCOE_CONN_AG_CTX_CF5_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF5_SHIFT 4
+#define USTORM_FCOE_CONN_AG_CTX_CF6_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF6_SHIFT 6
+ u8 flags2;
+#define USTORM_FCOE_CONN_AG_CTX_CF0EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF0EN_SHIFT 0
+#define USTORM_FCOE_CONN_AG_CTX_CF1EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF1EN_SHIFT 1
+#define USTORM_FCOE_CONN_AG_CTX_CF2EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF2EN_SHIFT 2
+#define USTORM_FCOE_CONN_AG_CTX_CF3EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF3EN_SHIFT 3
+#define USTORM_FCOE_CONN_AG_CTX_CF4EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF4EN_SHIFT 4
+#define USTORM_FCOE_CONN_AG_CTX_CF5EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF5EN_SHIFT 5
+#define USTORM_FCOE_CONN_AG_CTX_CF6EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF6EN_SHIFT 6
+#define USTORM_FCOE_CONN_AG_CTX_RULE0EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE0EN_SHIFT 7
+ u8 flags3;
+#define USTORM_FCOE_CONN_AG_CTX_RULE1EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE1EN_SHIFT 0
+#define USTORM_FCOE_CONN_AG_CTX_RULE2EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE2EN_SHIFT 1
+#define USTORM_FCOE_CONN_AG_CTX_RULE3EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE3EN_SHIFT 2
+#define USTORM_FCOE_CONN_AG_CTX_RULE4EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE4EN_SHIFT 3
+#define USTORM_FCOE_CONN_AG_CTX_RULE5EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE5EN_SHIFT 4
+#define USTORM_FCOE_CONN_AG_CTX_RULE6EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE6EN_SHIFT 5
+#define USTORM_FCOE_CONN_AG_CTX_RULE7EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE7EN_SHIFT 6
+#define USTORM_FCOE_CONN_AG_CTX_RULE8EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE8EN_SHIFT 7
+ u8 byte2;
+ u8 byte3;
+ __le16 word0;
+ __le16 word1;
+ __le32 reg0;
+ __le32 reg1;
+ __le32 reg2;
+ __le32 reg3;
+ __le16 word2;
+ __le16 word3;
+};
+
+struct tstorm_fcoe_conn_st_ctx {
+ __le16 stat_ram_addr;
+ __le16 rx_max_fc_payload_len;
+ __le16 e_d_tov_val;
+ u8 flags;
+#define TSTORM_FCOE_CONN_ST_CTX_INC_SEQ_CNT_MASK 0x1
+#define TSTORM_FCOE_CONN_ST_CTX_INC_SEQ_CNT_SHIFT 0
+#define TSTORM_FCOE_CONN_ST_CTX_SUPPORT_CONF_MASK 0x1
+#define TSTORM_FCOE_CONN_ST_CTX_SUPPORT_CONF_SHIFT 1
+#define TSTORM_FCOE_CONN_ST_CTX_DEF_Q_IDX_MASK 0x3F
+#define TSTORM_FCOE_CONN_ST_CTX_DEF_Q_IDX_SHIFT 2
+ u8 timers_cleanup_invocation_cnt;
+ __le32 reserved1[2];
+ __le32 dst_mac_address_bytes0to3;
+ __le16 dst_mac_address_bytes4to5;
+ __le16 ramrod_echo;
+ u8 flags1;
+#define TSTORM_FCOE_CONN_ST_CTX_MODE_MASK 0x3
+#define TSTORM_FCOE_CONN_ST_CTX_MODE_SHIFT 0
+#define TSTORM_FCOE_CONN_ST_CTX_RESERVED_MASK 0x3F
+#define TSTORM_FCOE_CONN_ST_CTX_RESERVED_SHIFT 2
+ u8 q_relative_offset;
+ u8 bdq_resource_id;
+ u8 reserved0[5];
+};
+
+struct mstorm_fcoe_conn_ag_ctx {
+ u8 byte0;
+ u8 byte1;
+ u8 flags0;
+#define MSTORM_FCOE_CONN_AG_CTX_BIT0_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_BIT0_SHIFT 0
+#define MSTORM_FCOE_CONN_AG_CTX_BIT1_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_BIT1_SHIFT 1
+#define MSTORM_FCOE_CONN_AG_CTX_CF0_MASK 0x3
+#define MSTORM_FCOE_CONN_AG_CTX_CF0_SHIFT 2
+#define MSTORM_FCOE_CONN_AG_CTX_CF1_MASK 0x3
+#define MSTORM_FCOE_CONN_AG_CTX_CF1_SHIFT 4
+#define MSTORM_FCOE_CONN_AG_CTX_CF2_MASK 0x3
+#define MSTORM_FCOE_CONN_AG_CTX_CF2_SHIFT 6
+ u8 flags1;
+#define MSTORM_FCOE_CONN_AG_CTX_CF0EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_CF0EN_SHIFT 0
+#define MSTORM_FCOE_CONN_AG_CTX_CF1EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_CF1EN_SHIFT 1
+#define MSTORM_FCOE_CONN_AG_CTX_CF2EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_CF2EN_SHIFT 2
+#define MSTORM_FCOE_CONN_AG_CTX_RULE0EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_RULE0EN_SHIFT 3
+#define MSTORM_FCOE_CONN_AG_CTX_RULE1EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_RULE1EN_SHIFT 4
+#define MSTORM_FCOE_CONN_AG_CTX_RULE2EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_RULE2EN_SHIFT 5
+#define MSTORM_FCOE_CONN_AG_CTX_RULE3EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_RULE3EN_SHIFT 6
+#define MSTORM_FCOE_CONN_AG_CTX_RULE4EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_RULE4EN_SHIFT 7
+ __le16 word0;
+ __le16 word1;
+ __le32 reg0;
+ __le32 reg1;
+};
+
+struct fcoe_mstorm_fcoe_conn_st_ctx_fp {
+ __le16 xfer_prod;
+ __le16 reserved1;
+ u8 protection_info;
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_SUPPORT_PROTECTION_MASK 0x1
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_SUPPORT_PROTECTION_SHIFT 0
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_VALID_MASK 0x1
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_VALID_SHIFT 1
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_RESERVED0_MASK 0x3F
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_RESERVED0_SHIFT 2
+ u8 q_relative_offset;
+ u8 reserved2[2];
+};
+
+struct fcoe_mstorm_fcoe_conn_st_ctx_non_fp {
+ __le16 conn_id;
+ __le16 stat_ram_addr;
+ __le16 num_pages_in_pbl;
+ u8 ptu_log_page_size;
+ u8 log_page_size;
+ __le16 unsolicited_cq_count;
+ __le16 cmdq_count;
+ u8 bdq_resource_id;
+ u8 reserved0[3];
+ struct regpair xferq_pbl_addr;
+ struct regpair reserved1;
+ struct regpair reserved2[3];
+};
+
+struct mstorm_fcoe_conn_st_ctx {
+ struct fcoe_mstorm_fcoe_conn_st_ctx_fp fp;
+ struct fcoe_mstorm_fcoe_conn_st_ctx_non_fp non_fp;
+};
+
+struct fcoe_conn_context {
+ struct ystorm_fcoe_conn_st_ctx ystorm_st_context;
+ struct pstorm_fcoe_conn_st_ctx pstorm_st_context;
+ struct regpair pstorm_st_padding[2];
+ struct xstorm_fcoe_conn_st_ctx xstorm_st_context;
+ struct xstorm_fcoe_conn_ag_ctx xstorm_ag_context;
+ struct regpair xstorm_ag_padding[6];
+ struct ustorm_fcoe_conn_st_ctx ustorm_st_context;
+ struct regpair ustorm_st_padding[2];
+ struct tstorm_fcoe_conn_ag_ctx tstorm_ag_context;
+ struct regpair tstorm_ag_padding[2];
+ struct timers_context timer_context;
+ struct ustorm_fcoe_conn_ag_ctx ustorm_ag_context;
+ struct tstorm_fcoe_conn_st_ctx tstorm_st_context;
+ struct mstorm_fcoe_conn_ag_ctx mstorm_ag_context;
+ struct mstorm_fcoe_conn_st_ctx mstorm_st_context;
+};
+
+struct fcoe_conn_offload_ramrod_params {
+ struct fcoe_conn_offload_ramrod_data offload_ramrod_data;
+};
+
+struct fcoe_conn_terminate_ramrod_params {
+ struct fcoe_conn_terminate_ramrod_data terminate_ramrod_data;
+};
+
+enum fcoe_event_type {
+ FCOE_EVENT_INIT_FUNC,
+ FCOE_EVENT_DESTROY_FUNC,
+ FCOE_EVENT_STAT_FUNC,
+ FCOE_EVENT_OFFLOAD_CONN,
+ FCOE_EVENT_TERMINATE_CONN,
+ FCOE_EVENT_ERROR,
+ MAX_FCOE_EVENT_TYPE
+};
+
+struct fcoe_init_ramrod_params {
+ struct fcoe_init_func_ramrod_data init_ramrod_data;
+};
+
+enum fcoe_ramrod_cmd_id {
+ FCOE_RAMROD_CMD_ID_INIT_FUNC,
+ FCOE_RAMROD_CMD_ID_DESTROY_FUNC,
+ FCOE_RAMROD_CMD_ID_STAT_FUNC,
+ FCOE_RAMROD_CMD_ID_OFFLOAD_CONN,
+ FCOE_RAMROD_CMD_ID_TERMINATE_CONN,
+ MAX_FCOE_RAMROD_CMD_ID
+};
+
+struct fcoe_stat_ramrod_params {
+ struct fcoe_stat_ramrod_data stat_ramrod_data;
+};
+
+struct ystorm_fcoe_conn_ag_ctx {
+ u8 byte0;
+ u8 byte1;
+ u8 flags0;
+#define YSTORM_FCOE_CONN_AG_CTX_BIT0_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_BIT0_SHIFT 0
+#define YSTORM_FCOE_CONN_AG_CTX_BIT1_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_BIT1_SHIFT 1
+#define YSTORM_FCOE_CONN_AG_CTX_CF0_MASK 0x3
+#define YSTORM_FCOE_CONN_AG_CTX_CF0_SHIFT 2
+#define YSTORM_FCOE_CONN_AG_CTX_CF1_MASK 0x3
+#define YSTORM_FCOE_CONN_AG_CTX_CF1_SHIFT 4
+#define YSTORM_FCOE_CONN_AG_CTX_CF2_MASK 0x3
+#define YSTORM_FCOE_CONN_AG_CTX_CF2_SHIFT 6
+ u8 flags1;
+#define YSTORM_FCOE_CONN_AG_CTX_CF0EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_CF0EN_SHIFT 0
+#define YSTORM_FCOE_CONN_AG_CTX_CF1EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_CF1EN_SHIFT 1
+#define YSTORM_FCOE_CONN_AG_CTX_CF2EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_CF2EN_SHIFT 2
+#define YSTORM_FCOE_CONN_AG_CTX_RULE0EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_RULE0EN_SHIFT 3
+#define YSTORM_FCOE_CONN_AG_CTX_RULE1EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_RULE1EN_SHIFT 4
+#define YSTORM_FCOE_CONN_AG_CTX_RULE2EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_RULE2EN_SHIFT 5
+#define YSTORM_FCOE_CONN_AG_CTX_RULE3EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_RULE3EN_SHIFT 6
+#define YSTORM_FCOE_CONN_AG_CTX_RULE4EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_RULE4EN_SHIFT 7
+ u8 byte2;
+ u8 byte3;
+ __le16 word0;
+ __le32 reg0;
+ __le32 reg1;
+ __le16 word1;
+ __le16 word2;
+ __le16 word3;
+ __le16 word4;
+ __le32 reg2;
+ __le32 reg3;
+};
+
struct ystorm_iscsi_conn_st_ctx {
__le32 reserved[4];
};
@@ -8435,6 +9204,7 @@ struct public_func {
#define FUNC_MF_CFG_PROTOCOL_SHIFT 4
#define FUNC_MF_CFG_PROTOCOL_ETHERNET 0x00000000
#define FUNC_MF_CFG_PROTOCOL_ISCSI 0x00000010
+#define FUNC_MF_CFG_PROTOCOL_FCOE 0x00000020
#define FUNC_MF_CFG_PROTOCOL_ROCE 0x00000030
#define FUNC_MF_CFG_PROTOCOL_MAX 0x00000030
@@ -8529,6 +9299,13 @@ struct lan_stats_stc {
u32 rserved;
};
+struct fcoe_stats_stc {
+ u64 rx_pkts;
+ u64 tx_pkts;
+ u32 fcs_err;
+ u32 login_failure;
+};
+
struct ocbb_data_stc {
u32 ocbb_host_addr;
u32 ocsd_host_addr;
@@ -8602,6 +9379,7 @@ struct resource_info {
struct drv_version_stc drv_version;
struct lan_stats_stc lan_stats;
+ struct fcoe_stats_stc fcoe_stats;
struct ocbb_data_stc ocbb_info;
struct temperature_status_stc temp_info;
struct resource_info resource;
@@ -8905,6 +9683,7 @@ struct nvm_cfg1_glob {
u32 misc_sig;
u32 device_capabilities;
#define NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ETHERNET 0x1
+#define NVM_CFG1_GLOB_DEVICE_CAPABILITIES_FCOE 0x2
#define NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ISCSI 0x4
#define NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ROCE 0x8
u32 power_dissipated;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_hw.c b/drivers/net/ethernet/qlogic/qed/qed_hw.c
index 1f60651..899cad7 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_hw.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_hw.c
@@ -841,6 +841,9 @@ u16 qed_get_qm_pq(struct qed_hwfn *p_hwfn,
if (pq_id > p_hwfn->qm_info.num_pf_rls)
pq_id = p_hwfn->qm_info.offload_pq;
break;
+ case PROTOCOLID_FCOE:
+ pq_id = p_hwfn->qm_info.offload_pq;
+ break;
default:
pq_id = 0;
}
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
index 02c5d47..9a0b9af 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
@@ -1130,6 +1130,9 @@ static int qed_sp_ll2_tx_queue_start(struct qed_hwfn *p_hwfn,
p_ramrod->qm_pq_id = cpu_to_le16(pq_id);
switch (conn_type) {
+ case QED_LL2_TYPE_FCOE:
+ p_ramrod->conn_type = PROTOCOLID_FCOE;
+ break;
case QED_LL2_TYPE_ISCSI:
case QED_LL2_TYPE_ISCSI_OOO:
p_ramrod->conn_type = PROTOCOLID_ISCSI;
@@ -1458,6 +1461,15 @@ int qed_ll2_establish_connection(struct qed_hwfn *p_hwfn, u8 connection_handle)
qed_ll2_establish_connection_ooo(p_hwfn, p_ll2_conn);
+ if (p_ll2_conn->conn.conn_type == QED_LL2_TYPE_FCOE) {
+ qed_llh_add_protocol_filter(p_hwfn, p_hwfn->p_main_ptt,
+ 0x8906, 0,
+ QED_LLH_FILTER_ETHERTYPE);
+ qed_llh_add_protocol_filter(p_hwfn, p_hwfn->p_main_ptt,
+ 0x8914, 0,
+ QED_LLH_FILTER_ETHERTYPE);
+ }
+
return rc;
}
@@ -1831,6 +1843,15 @@ int qed_ll2_terminate_connection(struct qed_hwfn *p_hwfn, u8 connection_handle)
if (p_ll2_conn->conn.conn_type == QED_LL2_TYPE_ISCSI_OOO)
qed_ooo_release_all_isles(p_hwfn, p_hwfn->p_ooo_info);
+ if (p_ll2_conn->conn.conn_type == QED_LL2_TYPE_FCOE) {
+ qed_llh_remove_protocol_filter(p_hwfn, p_hwfn->p_main_ptt,
+ 0x8906, 0,
+ QED_LLH_FILTER_ETHERTYPE);
+ qed_llh_remove_protocol_filter(p_hwfn, p_hwfn->p_main_ptt,
+ 0x8914, 0,
+ QED_LLH_FILTER_ETHERTYPE);
+ }
+
return rc;
}
@@ -2039,6 +2060,10 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
}
switch (QED_LEADING_HWFN(cdev)->hw_info.personality) {
+ case QED_PCI_FCOE:
+ conn_type = QED_LL2_TYPE_FCOE;
+ gsi_enable = 0;
+ break;
case QED_PCI_ISCSI:
conn_type = QED_LL2_TYPE_ISCSI;
gsi_enable = 0;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.h b/drivers/net/ethernet/qlogic/qed/qed_ll2.h
index db3e4fc..31a4090 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.h
@@ -54,7 +54,7 @@ enum qed_ll2_roce_flavor_type {
};
enum qed_ll2_conn_type {
- QED_LL2_TYPE_RESERVED,
+ QED_LL2_TYPE_FCOE,
QED_LL2_TYPE_ISCSI,
QED_LL2_TYPE_TEST,
QED_LL2_TYPE_ISCSI_OOO,
diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c
index 93eee83..e9c26d7 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_main.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_main.c
@@ -53,9 +53,11 @@
#include "qed_sp.h"
#include "qed_dev_api.h"
#include "qed_ll2.h"
+#include "qed_fcoe.h"
#include "qed_mcp.h"
#include "qed_hw.h"
#include "qed_selftest.h"
+#include "qed_debug.h"
#define QED_ROCE_QPS (8192)
#define QED_ROCE_DPIS (8)
@@ -1588,6 +1590,8 @@ static int qed_update_mtu(struct qed_dev *cdev, u16 mtu)
.sb_release = &qed_sb_release,
.simd_handler_config = &qed_simd_handler_config,
.simd_handler_clean = &qed_simd_handler_clean,
+ .dbg_grc = &qed_dbg_grc,
+ .dbg_grc_size = &qed_dbg_grc_size,
.can_link_change = &qed_can_link_change,
.set_link = &qed_set_link,
.get_link = &qed_get_current_link,
@@ -1621,6 +1625,9 @@ void qed_get_protocol_stats(struct qed_dev *cdev,
stats->lan_stats.ucast_tx_pkts = eth_stats.tx_ucast_pkts;
stats->lan_stats.fcs_err = -1;
break;
+ case QED_MCP_FCOE_STATS:
+ qed_get_protocol_stats_fcoe(cdev, &stats->fcoe_stats);
+ break;
default:
DP_ERR(cdev, "Invalid protocol type = %d\n", type);
return;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
index c8a8775..7624a38 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
@@ -1130,6 +1130,9 @@ int qed_mcp_get_media_type(struct qed_dev *cdev, u32 *p_media_type)
case FUNC_MF_CFG_PROTOCOL_ISCSI:
*p_proto = QED_PCI_ISCSI;
break;
+ case FUNC_MF_CFG_PROTOCOL_FCOE:
+ *p_proto = QED_PCI_FCOE;
+ break;
case FUNC_MF_CFG_PROTOCOL_ROCE:
DP_NOTICE(p_hwfn, "RoCE personality is not a valid value!\n");
/* Fallthrough */
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.h b/drivers/net/ethernet/qlogic/qed/qed_mcp.h
index 363dce0..0792224 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.h
@@ -37,6 +37,7 @@
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
+#include <linux/qed/qed_fcoe_if.h>
#include "qed_hsi.h"
struct qed_mcp_link_speed_params {
diff --git a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
index b6722c6..cdd6700 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
@@ -110,6 +110,8 @@
0x1e80000UL
#define NIG_REG_RX_LLH_BRB_GATE_DNTFWD_PERPF \
0x5011f4UL
+#define PRS_REG_SEARCH_RESP_INITIATOR_TYPE \
+ 0x1f0164UL
#define PRS_REG_SEARCH_TCP \
0x1f0400UL
#define PRS_REG_SEARCH_UDP \
@@ -120,6 +122,12 @@
0x1f040cUL
#define PRS_REG_SEARCH_OPENFLOW \
0x1f0434UL
+#define PRS_REG_SEARCH_TAG1 \
+ 0x1f0444UL
+#define PRS_REG_PKT_LEN_STAT_TAGS_NOT_COUNTED_FIRST \
+ 0x1f0a0cUL
+#define PRS_REG_SEARCH_TCP_FIRST_FRAG \
+ 0x1f0410UL
#define TM_REG_PF_ENABLE_CONN \
0x2c043cUL
#define TM_REG_PF_ENABLE_TASK \
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sp.h b/drivers/net/ethernet/qlogic/qed/qed_sp.h
index 0438829..30393ff 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sp.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_sp.h
@@ -109,6 +109,10 @@ int qed_eth_cqe_completion(struct qed_hwfn *p_hwfn,
struct rdma_srq_destroy_ramrod_data rdma_destroy_srq;
struct rdma_srq_modify_ramrod_data rdma_modify_srq;
struct roce_init_func_ramrod_data roce_init_func;
+ struct fcoe_init_ramrod_params fcoe_init;
+ struct fcoe_conn_offload_ramrod_params fcoe_conn_ofld;
+ struct fcoe_conn_terminate_ramrod_params fcoe_conn_terminate;
+ struct fcoe_stat_ramrod_params fcoe_stat;
struct iscsi_slow_path_hdr iscsi_empty;
struct iscsi_init_ramrod_params iscsi_init;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c b/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c
index 097a729..6fb80f9 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c
@@ -386,6 +386,9 @@ int qed_sp_pf_start(struct qed_hwfn *p_hwfn,
case QED_PCI_ETH:
p_ramrod->personality = PERSONALITY_ETH;
break;
+ case QED_PCI_FCOE:
+ p_ramrod->personality = PERSONALITY_FCOE;
+ break;
case QED_PCI_ISCSI:
p_ramrod->personality = PERSONALITY_ISCSI;
break;
diff --git a/include/linux/qed/common_hsi.h b/include/linux/qed/common_hsi.h
index c33080b..52966b9 100644
--- a/include/linux/qed/common_hsi.h
+++ b/include/linux/qed/common_hsi.h
@@ -62,6 +62,7 @@
#define COMMON_QUEUE_ENTRY_MAX_BYTE_SIZE 64
#define ISCSI_CDU_TASK_SEG_TYPE 0
+#define FCOE_CDU_TASK_SEG_TYPE 0
#define RDMA_CDU_TASK_SEG_TYPE 1
#define FW_ASSERT_GENERAL_ATTN_IDX 32
@@ -205,6 +206,9 @@
#define DQ_XCM_ETH_TX_BD_CONS_CMD DQ_XCM_AGG_VAL_SEL_WORD3
#define DQ_XCM_ETH_TX_BD_PROD_CMD DQ_XCM_AGG_VAL_SEL_WORD4
#define DQ_XCM_ETH_GO_TO_BD_CONS_CMD DQ_XCM_AGG_VAL_SEL_WORD5
+#define DQ_XCM_FCOE_SQ_CONS_CMD DQ_XCM_AGG_VAL_SEL_WORD3
+#define DQ_XCM_FCOE_SQ_PROD_CMD DQ_XCM_AGG_VAL_SEL_WORD4
+#define DQ_XCM_FCOE_X_FERQ_PROD_CMD DQ_XCM_AGG_VAL_SEL_WORD5
#define DQ_XCM_ISCSI_SQ_CONS_CMD DQ_XCM_AGG_VAL_SEL_WORD3
#define DQ_XCM_ISCSI_SQ_PROD_CMD DQ_XCM_AGG_VAL_SEL_WORD4
#define DQ_XCM_ISCSI_MORE_TO_SEND_SEQ_CMD DQ_XCM_AGG_VAL_SEL_REG3
@@ -261,6 +265,7 @@
#define DQ_XCM_ETH_TERMINATE_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF19)
#define DQ_XCM_ETH_SLOW_PATH_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF22)
#define DQ_XCM_ETH_TPH_EN_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF23)
+#define DQ_XCM_FCOE_SLOW_PATH_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF22)
#define DQ_XCM_ISCSI_DQ_FLUSH_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF19)
#define DQ_XCM_ISCSI_SLOW_PATH_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF22)
#define DQ_XCM_ISCSI_PROC_ONLY_CLEANUP_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF23)
@@ -291,6 +296,9 @@
#define DQ_TCM_AGG_FLG_SHIFT_CF6 6
#define DQ_TCM_AGG_FLG_SHIFT_CF7 7
/* TCM agg counter flag selection (FW) */
+#define DQ_TCM_FCOE_FLUSH_Q0_CMD BIT(DQ_TCM_AGG_FLG_SHIFT_CF1)
+#define DQ_TCM_FCOE_DUMMY_TIMER_CMD BIT(DQ_TCM_AGG_FLG_SHIFT_CF2)
+#define DQ_TCM_FCOE_TIMER_STOP_ALL_CMD BIT(DQ_TCM_AGG_FLG_SHIFT_CF3)
#define DQ_TCM_ISCSI_FLUSH_Q0_CMD BIT(DQ_TCM_AGG_FLG_SHIFT_CF1)
#define DQ_TCM_ISCSI_TIMER_STOP_ALL_CMD BIT(DQ_TCM_AGG_FLG_SHIFT_CF3)
@@ -728,7 +736,7 @@ enum mf_mode {
/* Per-protocol connection types */
enum protocol_type {
PROTOCOLID_ISCSI,
- PROTOCOLID_RESERVED2,
+ PROTOCOLID_FCOE,
PROTOCOLID_ROCE,
PROTOCOLID_CORE,
PROTOCOLID_ETH,
diff --git a/include/linux/qed/fcoe_common.h b/include/linux/qed/fcoe_common.h
new file mode 100644
index 0000000..2e417a4
--- /dev/null
+++ b/include/linux/qed/fcoe_common.h
@@ -0,0 +1,715 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#ifndef __FCOE_COMMON__
+#define __FCOE_COMMON__
+/*********************/
+/* FCOE FW CONSTANTS */
+/*********************/
+
+#define FC_ABTS_REPLY_MAX_PAYLOAD_LEN 12
+#define FCOE_MAX_SIZE_FCP_DATA_SUPER (8600)
+
+struct fcoe_abts_pkt {
+ __le32 abts_rsp_fc_payload_lo;
+ __le16 abts_rsp_rx_id;
+ u8 abts_rsp_rctl;
+ u8 reserved2;
+};
+
+/* FCoE additional WQE (Sq/XferQ) information */
+union fcoe_additional_info_union {
+ __le32 previous_tid;
+ __le32 parent_tid;
+ __le32 burst_length;
+ __le32 seq_rec_updated_offset;
+};
+
+struct fcoe_exp_ro {
+ __le32 data_offset;
+ __le32 reserved;
+};
+
+union fcoe_cleanup_addr_exp_ro_union {
+ struct regpair abts_rsp_fc_payload_hi;
+ struct fcoe_exp_ro exp_ro;
+};
+
+/* FCoE Ramrod Command IDs */
+enum fcoe_completion_status {
+ FCOE_COMPLETION_STATUS_SUCCESS,
+ FCOE_COMPLETION_STATUS_FCOE_VER_ERR,
+ FCOE_COMPLETION_STATUS_SRC_MAC_ADD_ARR_ERR,
+ MAX_FCOE_COMPLETION_STATUS
+};
+
+struct fc_addr_nw {
+ u8 addr_lo;
+ u8 addr_mid;
+ u8 addr_hi;
+};
+
+/* FCoE connection offload */
+struct fcoe_conn_offload_ramrod_data {
+ struct regpair sq_pbl_addr;
+ struct regpair sq_curr_page_addr;
+ struct regpair sq_next_page_addr;
+ struct regpair xferq_pbl_addr;
+ struct regpair xferq_curr_page_addr;
+ struct regpair xferq_next_page_addr;
+ struct regpair respq_pbl_addr;
+ struct regpair respq_curr_page_addr;
+ struct regpair respq_next_page_addr;
+ __le16 dst_mac_addr_lo;
+ __le16 dst_mac_addr_mid;
+ __le16 dst_mac_addr_hi;
+ __le16 src_mac_addr_lo;
+ __le16 src_mac_addr_mid;
+ __le16 src_mac_addr_hi;
+ __le16 tx_max_fc_pay_len;
+ __le16 e_d_tov_timer_val;
+ __le16 rx_max_fc_pay_len;
+ __le16 vlan_tag;
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_VLAN_ID_MASK 0xFFF
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_VLAN_ID_SHIFT 0
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_CFI_MASK 0x1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_CFI_SHIFT 12
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_PRIORITY_MASK 0x7
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_PRIORITY_SHIFT 13
+ __le16 physical_q0;
+ __le16 rec_rr_tov_timer_val;
+ struct fc_addr_nw s_id;
+ u8 max_conc_seqs_c3;
+ struct fc_addr_nw d_id;
+ u8 flags;
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONT_INCR_SEQ_CNT_MASK 0x1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONT_INCR_SEQ_CNT_SHIFT 0
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONF_REQ_MASK 0x1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONF_REQ_SHIFT 1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_REC_VALID_MASK 0x1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_REC_VALID_SHIFT 2
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_MASK 0x1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_SHIFT 3
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_MODE_MASK 0x3
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_MODE_SHIFT 4
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_RESERVED0_MASK 0x3
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_RESERVED0_SHIFT 6
+ __le16 conn_id;
+ u8 def_q_idx;
+ u8 reserved[5];
+};
+
+/* FCoE terminate connection request */
+struct fcoe_conn_terminate_ramrod_data {
+ struct regpair terminate_params_addr;
+};
+
+struct fcoe_fast_sgl_ctx {
+ struct regpair sgl_start_addr;
+ __le32 sgl_byte_offset;
+ __le16 task_reuse_cnt;
+ __le16 init_offset_in_first_sge;
+};
+
+struct fcoe_slow_sgl_ctx {
+ struct regpair base_sgl_addr;
+ __le16 curr_sge_off;
+ __le16 remainder_num_sges;
+ __le16 curr_sgl_index;
+ __le16 reserved;
+};
+
+struct fcoe_sge {
+ struct regpair sge_addr;
+ __le16 size;
+ __le16 reserved0;
+ u8 reserved1[3];
+ u8 is_valid_sge;
+};
+
+union fcoe_data_desc_ctx {
+ struct fcoe_fast_sgl_ctx fast;
+ struct fcoe_slow_sgl_ctx slow;
+ struct fcoe_sge single_sge;
+};
+
+union fcoe_dix_desc_ctx {
+ struct fcoe_slow_sgl_ctx dix_sgl;
+ struct fcoe_sge cached_dix_sge;
+};
+
+struct fcoe_fcp_cmd_payload {
+ __le32 opaque[8];
+};
+
+struct fcoe_fcp_rsp_payload {
+ __le32 opaque[6];
+};
+
+struct fcoe_fcp_xfer_payload {
+ __le32 opaque[3];
+};
+
+/* FCoE firmware function init */
+struct fcoe_init_func_ramrod_data {
+ struct scsi_init_func_params func_params;
+ struct scsi_init_func_queues q_params;
+ __le16 mtu;
+ __le16 sq_num_pages_in_pbl;
+ __le32 reserved;
+};
+
+/* FCoE: Mode of the connection: Target or Initiator or both */
+enum fcoe_mode_type {
+ FCOE_INITIATOR_MODE = 0x0,
+ FCOE_TARGET_MODE = 0x1,
+ FCOE_BOTH_OR_NOT_CHOSEN = 0x3,
+ MAX_FCOE_MODE_TYPE
+};
+
+struct fcoe_mstorm_fcoe_task_st_ctx_fp {
+ __le16 flags;
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_FP_RSRV0_MASK 0x7FFF
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_FP_RSRV0_SHIFT 0
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_FP_MP_INCLUDE_FC_HEADER_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_FP_MP_INCLUDE_FC_HEADER_SHIFT 15
+ __le16 difDataResidue;
+ __le16 parent_id;
+ __le16 single_sge_saved_offset;
+ __le32 data_2_trns_rem;
+ __le32 offset_in_io;
+ union fcoe_dix_desc_ctx dix_desc;
+ union fcoe_data_desc_ctx data_desc;
+};
+
+struct fcoe_mstorm_fcoe_task_st_ctx_non_fp {
+ __le16 flags;
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_HOST_INTERFACE_MASK 0x3
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_HOST_INTERFACE_SHIFT 0
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIF_TO_PEER_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIF_TO_PEER_SHIFT 2
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_VALIDATE_DIX_APP_TAG_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_VALIDATE_DIX_APP_TAG_SHIFT 3
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_INTERVAL_SIZE_LOG_MASK 0xF
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_INTERVAL_SIZE_LOG_SHIFT 4
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIX_BLOCK_SIZE_MASK 0x3
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIX_BLOCK_SIZE_SHIFT 8
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RESERVED_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RESERVED_SHIFT 10
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_HAS_FIRST_PACKET_ARRIVED_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_HAS_FIRST_PACKET_ARRIVED_SHIFT 11
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_VALIDATE_DIX_REF_TAG_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_VALIDATE_DIX_REF_TAG_SHIFT 12
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIX_CACHED_SGE_FLG_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIX_CACHED_SGE_FLG_SHIFT 13
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_OFFSET_IN_IO_VALID_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_OFFSET_IN_IO_VALID_SHIFT 14
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIF_SUPPORTED_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIF_SUPPORTED_SHIFT 15
+ u8 tx_rx_sgl_mode;
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_TX_SGL_MODE_MASK 0x7
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_TX_SGL_MODE_SHIFT 0
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RX_SGL_MODE_MASK 0x7
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RX_SGL_MODE_SHIFT 3
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RSRV1_MASK 0x3
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RSRV1_SHIFT 6
+ u8 rsrv2;
+ __le32 num_prm_zero_read;
+ struct regpair rsp_buf_addr;
+};
+
+struct fcoe_rx_stat {
+ struct regpair fcoe_rx_byte_cnt;
+ struct regpair fcoe_rx_data_pkt_cnt;
+ struct regpair fcoe_rx_xfer_pkt_cnt;
+ struct regpair fcoe_rx_other_pkt_cnt;
+ __le32 fcoe_silent_drop_pkt_cmdq_full_cnt;
+ __le32 fcoe_silent_drop_pkt_rq_full_cnt;
+ __le32 fcoe_silent_drop_pkt_crc_error_cnt;
+ __le32 fcoe_silent_drop_pkt_task_invalid_cnt;
+ __le32 fcoe_silent_drop_total_pkt_cnt;
+ __le32 rsrv;
+};
+
+enum fcoe_sgl_mode {
+ FCOE_SLOW_SGL,
+ FCOE_SINGLE_FAST_SGE,
+ FCOE_2_FAST_SGE,
+ FCOE_3_FAST_SGE,
+ FCOE_4_FAST_SGE,
+ FCOE_MUL_FAST_SGES,
+ MAX_FCOE_SGL_MODE
+};
+
+struct fcoe_stat_ramrod_data {
+ struct regpair stat_params_addr;
+};
+
+struct protection_info_ctx {
+ __le16 flags;
+#define PROTECTION_INFO_CTX_HOST_INTERFACE_MASK 0x3
+#define PROTECTION_INFO_CTX_HOST_INTERFACE_SHIFT 0
+#define PROTECTION_INFO_CTX_DIF_TO_PEER_MASK 0x1
+#define PROTECTION_INFO_CTX_DIF_TO_PEER_SHIFT 2
+#define PROTECTION_INFO_CTX_VALIDATE_DIX_APP_TAG_MASK 0x1
+#define PROTECTION_INFO_CTX_VALIDATE_DIX_APP_TAG_SHIFT 3
+#define PROTECTION_INFO_CTX_INTERVAL_SIZE_LOG_MASK 0xF
+#define PROTECTION_INFO_CTX_INTERVAL_SIZE_LOG_SHIFT 4
+#define PROTECTION_INFO_CTX_VALIDATE_DIX_REF_TAG_MASK 0x1
+#define PROTECTION_INFO_CTX_VALIDATE_DIX_REF_TAG_SHIFT 8
+#define PROTECTION_INFO_CTX_RESERVED0_MASK 0x7F
+#define PROTECTION_INFO_CTX_RESERVED0_SHIFT 9
+ u8 dix_block_size;
+ u8 dst_size;
+};
+
+union protection_info_union_ctx {
+ struct protection_info_ctx info;
+ __le32 value;
+};
+
+struct fcp_rsp_payload_padded {
+ struct fcoe_fcp_rsp_payload rsp_payload;
+ __le32 reserved[2];
+};
+
+struct fcp_xfer_payload_padded {
+ struct fcoe_fcp_xfer_payload xfer_payload;
+ __le32 reserved[5];
+};
+
+struct fcoe_tx_data_params {
+ __le32 data_offset;
+ __le32 offset_in_io;
+ u8 flags;
+#define FCOE_TX_DATA_PARAMS_OFFSET_IN_IO_VALID_MASK 0x1
+#define FCOE_TX_DATA_PARAMS_OFFSET_IN_IO_VALID_SHIFT 0
+#define FCOE_TX_DATA_PARAMS_DROP_DATA_MASK 0x1
+#define FCOE_TX_DATA_PARAMS_DROP_DATA_SHIFT 1
+#define FCOE_TX_DATA_PARAMS_AFTER_SEQ_REC_MASK 0x1
+#define FCOE_TX_DATA_PARAMS_AFTER_SEQ_REC_SHIFT 2
+#define FCOE_TX_DATA_PARAMS_RESERVED0_MASK 0x1F
+#define FCOE_TX_DATA_PARAMS_RESERVED0_SHIFT 3
+ u8 dif_residual;
+ __le16 seq_cnt;
+ __le16 single_sge_saved_offset;
+ __le16 next_dif_offset;
+ __le16 seq_id;
+ __le16 reserved3;
+};
+
+struct fcoe_tx_mid_path_params {
+ __le32 parameter;
+ u8 r_ctl;
+ u8 type;
+ u8 cs_ctl;
+ u8 df_ctl;
+ __le16 rx_id;
+ __le16 ox_id;
+};
+
+struct fcoe_tx_params {
+ struct fcoe_tx_data_params data;
+ struct fcoe_tx_mid_path_params mid_path;
+};
+
+union fcoe_tx_info_union_ctx {
+ struct fcoe_fcp_cmd_payload fcp_cmd_payload;
+ struct fcp_rsp_payload_padded fcp_rsp_payload;
+ struct fcp_xfer_payload_padded fcp_xfer_payload;
+ struct fcoe_tx_params tx_params;
+};
+
+struct ystorm_fcoe_task_st_ctx {
+ u8 task_type;
+ u8 sgl_mode;
+#define YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE_MASK 0x7
+#define YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE_SHIFT 0
+#define YSTORM_FCOE_TASK_ST_CTX_RSRV_MASK 0x1F
+#define YSTORM_FCOE_TASK_ST_CTX_RSRV_SHIFT 3
+ u8 cached_dix_sge;
+ u8 expect_first_xfer;
+ __le32 num_pbf_zero_write;
+ union protection_info_union_ctx protection_info_union;
+ __le32 data_2_trns_rem;
+ union fcoe_tx_info_union_ctx tx_info_union;
+ union fcoe_dix_desc_ctx dix_desc;
+ union fcoe_data_desc_ctx data_desc;
+ __le16 ox_id;
+ __le16 rx_id;
+ __le32 task_rety_identifier;
+ __le32 reserved1[2];
+};
+
+struct ystorm_fcoe_task_ag_ctx {
+ u8 byte0;
+ u8 byte1;
+ __le16 word0;
+ u8 flags0;
+#define YSTORM_FCOE_TASK_AG_CTX_NIBBLE0_MASK 0xF
+#define YSTORM_FCOE_TASK_AG_CTX_NIBBLE0_SHIFT 0
+#define YSTORM_FCOE_TASK_AG_CTX_BIT0_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_BIT0_SHIFT 4
+#define YSTORM_FCOE_TASK_AG_CTX_BIT1_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_BIT1_SHIFT 5
+#define YSTORM_FCOE_TASK_AG_CTX_BIT2_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_BIT2_SHIFT 6
+#define YSTORM_FCOE_TASK_AG_CTX_BIT3_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_BIT3_SHIFT 7
+ u8 flags1;
+#define YSTORM_FCOE_TASK_AG_CTX_CF0_MASK 0x3
+#define YSTORM_FCOE_TASK_AG_CTX_CF0_SHIFT 0
+#define YSTORM_FCOE_TASK_AG_CTX_CF1_MASK 0x3
+#define YSTORM_FCOE_TASK_AG_CTX_CF1_SHIFT 2
+#define YSTORM_FCOE_TASK_AG_CTX_CF2SPECIAL_MASK 0x3
+#define YSTORM_FCOE_TASK_AG_CTX_CF2SPECIAL_SHIFT 4
+#define YSTORM_FCOE_TASK_AG_CTX_CF0EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_CF0EN_SHIFT 6
+#define YSTORM_FCOE_TASK_AG_CTX_CF1EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_CF1EN_SHIFT 7
+ u8 flags2;
+#define YSTORM_FCOE_TASK_AG_CTX_BIT4_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_BIT4_SHIFT 0
+#define YSTORM_FCOE_TASK_AG_CTX_RULE0EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE0EN_SHIFT 1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE1EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE1EN_SHIFT 2
+#define YSTORM_FCOE_TASK_AG_CTX_RULE2EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE2EN_SHIFT 3
+#define YSTORM_FCOE_TASK_AG_CTX_RULE3EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE3EN_SHIFT 4
+#define YSTORM_FCOE_TASK_AG_CTX_RULE4EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE4EN_SHIFT 5
+#define YSTORM_FCOE_TASK_AG_CTX_RULE5EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE5EN_SHIFT 6
+#define YSTORM_FCOE_TASK_AG_CTX_RULE6EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE6EN_SHIFT 7
+ u8 byte2;
+ __le32 reg0;
+ u8 byte3;
+ u8 byte4;
+ __le16 rx_id;
+ __le16 word2;
+ __le16 word3;
+ __le16 word4;
+ __le16 word5;
+ __le32 reg1;
+ __le32 reg2;
+};
+
+struct tstorm_fcoe_task_ag_ctx {
+ u8 reserved;
+ u8 byte1;
+ __le16 icid;
+ u8 flags0;
+#define TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF
+#define TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
+#define TSTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
+#define TSTORM_FCOE_TASK_AG_CTX_BIT1_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_BIT1_SHIFT 5
+#define TSTORM_FCOE_TASK_AG_CTX_WAIT_ABTS_RSP_F_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_WAIT_ABTS_RSP_F_SHIFT 6
+#define TSTORM_FCOE_TASK_AG_CTX_VALID_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_VALID_SHIFT 7
+ u8 flags1;
+#define TSTORM_FCOE_TASK_AG_CTX_FALSE_RR_TOV_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_FALSE_RR_TOV_SHIFT 0
+#define TSTORM_FCOE_TASK_AG_CTX_BIT5_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_BIT5_SHIFT 1
+#define TSTORM_FCOE_TASK_AG_CTX_REC_RR_TOV_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_REC_RR_TOV_CF_SHIFT 2
+#define TSTORM_FCOE_TASK_AG_CTX_ED_TOV_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_ED_TOV_CF_SHIFT 4
+#define TSTORM_FCOE_TASK_AG_CTX_CF2_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_CF2_SHIFT 6
+ u8 flags2;
+#define TSTORM_FCOE_TASK_AG_CTX_TIMER_STOP_ALL_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_TIMER_STOP_ALL_SHIFT 0
+#define TSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_SHIFT 2
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_INIT_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_INIT_CF_SHIFT 4
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_RECOVERY_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_RECOVERY_CF_SHIFT 6
+ u8 flags3;
+#define TSTORM_FCOE_TASK_AG_CTX_UNSOL_COMP_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_UNSOL_COMP_CF_SHIFT 0
+#define TSTORM_FCOE_TASK_AG_CTX_REC_RR_TOV_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_REC_RR_TOV_CF_EN_SHIFT 2
+#define TSTORM_FCOE_TASK_AG_CTX_ED_TOV_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_ED_TOV_CF_EN_SHIFT 3
+#define TSTORM_FCOE_TASK_AG_CTX_CF2EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_CF2EN_SHIFT 4
+#define TSTORM_FCOE_TASK_AG_CTX_TIMER_STOP_ALL_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_TIMER_STOP_ALL_EN_SHIFT 5
+#define TSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_EN_SHIFT 6
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_INIT_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_INIT_CF_EN_SHIFT 7
+ u8 flags4;
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_RECOVERY_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_RECOVERY_CF_EN_SHIFT 0
+#define TSTORM_FCOE_TASK_AG_CTX_UNSOL_COMP_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_UNSOL_COMP_CF_EN_SHIFT 1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE0EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE0EN_SHIFT 2
+#define TSTORM_FCOE_TASK_AG_CTX_RULE1EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE1EN_SHIFT 3
+#define TSTORM_FCOE_TASK_AG_CTX_RULE2EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE2EN_SHIFT 4
+#define TSTORM_FCOE_TASK_AG_CTX_RULE3EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE3EN_SHIFT 5
+#define TSTORM_FCOE_TASK_AG_CTX_RULE4EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE4EN_SHIFT 6
+#define TSTORM_FCOE_TASK_AG_CTX_RULE5EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE5EN_SHIFT 7
+ u8 cleanup_state;
+ __le16 last_sent_tid;
+ __le32 rec_rr_tov_exp_timeout;
+ u8 byte3;
+ u8 byte4;
+ __le16 word2;
+ __le16 word3;
+ __le16 word4;
+ __le32 data_offset_end_of_seq;
+ __le32 data_offset_next;
+};
+
+struct fcoe_tstorm_fcoe_task_st_ctx_read_write {
+ union fcoe_cleanup_addr_exp_ro_union cleanup_addr_exp_ro_union;
+ __le16 flags;
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RX_SGL_MODE_MASK 0x7
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RX_SGL_MODE_SHIFT 0
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME_MASK 0x1
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME_SHIFT 3
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SEQ_ACTIVE_MASK 0x1
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SEQ_ACTIVE_SHIFT 4
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SEQ_TIMEOUT_MASK 0x1
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SEQ_TIMEOUT_SHIFT 5
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SINGLE_PKT_IN_EX_MASK 0x1
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SINGLE_PKT_IN_EX_SHIFT 6
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_OOO_RX_SEQ_STAT_MASK 0x1
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_OOO_RX_SEQ_STAT_SHIFT 7
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_CQ_ADD_ADV_MASK 0x3
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_CQ_ADD_ADV_SHIFT 8
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RSRV1_MASK 0x3F
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RSRV1_SHIFT 10
+ __le16 seq_cnt;
+ u8 seq_id;
+ u8 ooo_rx_seq_id;
+ __le16 rx_id;
+ struct fcoe_abts_pkt abts_data;
+ __le32 e_d_tov_exp_timeout_val;
+ __le16 ooo_rx_seq_cnt;
+ __le16 reserved1;
+};
+
+struct fcoe_tstorm_fcoe_task_st_ctx_read_only {
+ u8 task_type;
+ u8 dev_type;
+ u8 conf_supported;
+ u8 glbl_q_num;
+ __le32 cid;
+ __le32 fcp_cmd_trns_size;
+ __le32 rsrv;
+};
+
+struct tstorm_fcoe_task_st_ctx {
+ struct fcoe_tstorm_fcoe_task_st_ctx_read_write read_write;
+ struct fcoe_tstorm_fcoe_task_st_ctx_read_only read_only;
+};
+
+struct mstorm_fcoe_task_ag_ctx {
+ u8 byte0;
+ u8 byte1;
+ __le16 icid;
+ u8 flags0;
+#define MSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF
+#define MSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
+#define MSTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
+#define MSTORM_FCOE_TASK_AG_CTX_CQE_PLACED_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_CQE_PLACED_SHIFT 5
+#define MSTORM_FCOE_TASK_AG_CTX_BIT2_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_BIT2_SHIFT 6
+#define MSTORM_FCOE_TASK_AG_CTX_BIT3_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_BIT3_SHIFT 7
+ u8 flags1;
+#define MSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_MASK 0x3
+#define MSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_SHIFT 0
+#define MSTORM_FCOE_TASK_AG_CTX_CF1_MASK 0x3
+#define MSTORM_FCOE_TASK_AG_CTX_CF1_SHIFT 2
+#define MSTORM_FCOE_TASK_AG_CTX_CF2_MASK 0x3
+#define MSTORM_FCOE_TASK_AG_CTX_CF2_SHIFT 4
+#define MSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_EN_SHIFT 6
+#define MSTORM_FCOE_TASK_AG_CTX_CF1EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_CF1EN_SHIFT 7
+ u8 flags2;
+#define MSTORM_FCOE_TASK_AG_CTX_CF2EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_CF2EN_SHIFT 0
+#define MSTORM_FCOE_TASK_AG_CTX_RULE0EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE0EN_SHIFT 1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE1EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE1EN_SHIFT 2
+#define MSTORM_FCOE_TASK_AG_CTX_RULE2EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE2EN_SHIFT 3
+#define MSTORM_FCOE_TASK_AG_CTX_RULE3EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE3EN_SHIFT 4
+#define MSTORM_FCOE_TASK_AG_CTX_RULE4EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE4EN_SHIFT 5
+#define MSTORM_FCOE_TASK_AG_CTX_XFER_PLACEMENT_EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_XFER_PLACEMENT_EN_SHIFT 6
+#define MSTORM_FCOE_TASK_AG_CTX_RULE6EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE6EN_SHIFT 7
+ u8 cleanup_state;
+ __le32 received_bytes;
+ u8 byte3;
+ u8 glbl_q_num;
+ __le16 word1;
+ __le16 tid_to_xfer;
+ __le16 word3;
+ __le16 word4;
+ __le16 word5;
+ __le32 expected_bytes;
+ __le32 reg2;
+};
+
+struct mstorm_fcoe_task_st_ctx {
+ struct fcoe_mstorm_fcoe_task_st_ctx_non_fp non_fp;
+ struct fcoe_mstorm_fcoe_task_st_ctx_fp fp;
+};
+
+struct ustorm_fcoe_task_ag_ctx {
+ u8 reserved;
+ u8 byte1;
+ __le16 icid;
+ u8 flags0;
+#define USTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF
+#define USTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
+#define USTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
+#define USTORM_FCOE_TASK_AG_CTX_BIT1_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_BIT1_SHIFT 5
+#define USTORM_FCOE_TASK_AG_CTX_CF0_MASK 0x3
+#define USTORM_FCOE_TASK_AG_CTX_CF0_SHIFT 6
+ u8 flags1;
+#define USTORM_FCOE_TASK_AG_CTX_CF1_MASK 0x3
+#define USTORM_FCOE_TASK_AG_CTX_CF1_SHIFT 0
+#define USTORM_FCOE_TASK_AG_CTX_CF2_MASK 0x3
+#define USTORM_FCOE_TASK_AG_CTX_CF2_SHIFT 2
+#define USTORM_FCOE_TASK_AG_CTX_CF3_MASK 0x3
+#define USTORM_FCOE_TASK_AG_CTX_CF3_SHIFT 4
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6
+ u8 flags2;
+#define USTORM_FCOE_TASK_AG_CTX_CF0EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_CF0EN_SHIFT 0
+#define USTORM_FCOE_TASK_AG_CTX_CF1EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_CF1EN_SHIFT 1
+#define USTORM_FCOE_TASK_AG_CTX_CF2EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_CF2EN_SHIFT 2
+#define USTORM_FCOE_TASK_AG_CTX_CF3EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_CF3EN_SHIFT 3
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4
+#define USTORM_FCOE_TASK_AG_CTX_RULE0EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE0EN_SHIFT 5
+#define USTORM_FCOE_TASK_AG_CTX_RULE1EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE1EN_SHIFT 6
+#define USTORM_FCOE_TASK_AG_CTX_RULE2EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE2EN_SHIFT 7
+ u8 flags3;
+#define USTORM_FCOE_TASK_AG_CTX_RULE3EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE3EN_SHIFT 0
+#define USTORM_FCOE_TASK_AG_CTX_RULE4EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE4EN_SHIFT 1
+#define USTORM_FCOE_TASK_AG_CTX_RULE5EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE5EN_SHIFT 2
+#define USTORM_FCOE_TASK_AG_CTX_RULE6EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE6EN_SHIFT 3
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4
+ __le32 dif_err_intervals;
+ __le32 dif_error_1st_interval;
+ __le32 global_cq_num;
+ __le32 reg3;
+ __le32 reg4;
+ __le32 reg5;
+};
+
+struct fcoe_task_context {
+ struct ystorm_fcoe_task_st_ctx ystorm_st_context;
+ struct tdif_task_context tdif_context;
+ struct ystorm_fcoe_task_ag_ctx ystorm_ag_context;
+ struct tstorm_fcoe_task_ag_ctx tstorm_ag_context;
+ struct timers_context timer_context;
+ struct tstorm_fcoe_task_st_ctx tstorm_st_context;
+ struct regpair tstorm_st_padding[2];
+ struct mstorm_fcoe_task_ag_ctx mstorm_ag_context;
+ struct mstorm_fcoe_task_st_ctx mstorm_st_context;
+ struct ustorm_fcoe_task_ag_ctx ustorm_ag_context;
+ struct rdif_task_context rdif_context;
+};
+
+struct fcoe_tx_stat {
+ struct regpair fcoe_tx_byte_cnt;
+ struct regpair fcoe_tx_data_pkt_cnt;
+ struct regpair fcoe_tx_xfer_pkt_cnt;
+ struct regpair fcoe_tx_other_pkt_cnt;
+};
+
+struct fcoe_wqe {
+ __le16 task_id;
+ __le16 flags;
+#define FCOE_WQE_REQ_TYPE_MASK 0xF
+#define FCOE_WQE_REQ_TYPE_SHIFT 0
+#define FCOE_WQE_SGL_MODE_MASK 0x7
+#define FCOE_WQE_SGL_MODE_SHIFT 4
+#define FCOE_WQE_CONTINUATION_MASK 0x1
+#define FCOE_WQE_CONTINUATION_SHIFT 7
+#define FCOE_WQE_INVALIDATE_PTU_MASK 0x1
+#define FCOE_WQE_INVALIDATE_PTU_SHIFT 8
+#define FCOE_WQE_SUPER_IO_MASK 0x1
+#define FCOE_WQE_SUPER_IO_SHIFT 9
+#define FCOE_WQE_SEND_AUTO_RSP_MASK 0x1
+#define FCOE_WQE_SEND_AUTO_RSP_SHIFT 10
+#define FCOE_WQE_RESERVED0_MASK 0x1F
+#define FCOE_WQE_RESERVED0_SHIFT 11
+ union fcoe_additional_info_union additional_info_union;
+};
+
+struct xfrqe_prot_flags {
+ u8 flags;
+#define XFRQE_PROT_FLAGS_PROT_INTERVAL_SIZE_LOG_MASK 0xF
+#define XFRQE_PROT_FLAGS_PROT_INTERVAL_SIZE_LOG_SHIFT 0
+#define XFRQE_PROT_FLAGS_DIF_TO_PEER_MASK 0x1
+#define XFRQE_PROT_FLAGS_DIF_TO_PEER_SHIFT 4
+#define XFRQE_PROT_FLAGS_HOST_INTERFACE_MASK 0x3
+#define XFRQE_PROT_FLAGS_HOST_INTERFACE_SHIFT 5
+#define XFRQE_PROT_FLAGS_RESERVED_MASK 0x1
+#define XFRQE_PROT_FLAGS_RESERVED_SHIFT 7
+};
+
+struct fcoe_db_data {
+ u8 params;
+#define FCOE_DB_DATA_DEST_MASK 0x3
+#define FCOE_DB_DATA_DEST_SHIFT 0
+#define FCOE_DB_DATA_AGG_CMD_MASK 0x3
+#define FCOE_DB_DATA_AGG_CMD_SHIFT 2
+#define FCOE_DB_DATA_BYPASS_EN_MASK 0x1
+#define FCOE_DB_DATA_BYPASS_EN_SHIFT 4
+#define FCOE_DB_DATA_RESERVED_MASK 0x1
+#define FCOE_DB_DATA_RESERVED_SHIFT 5
+#define FCOE_DB_DATA_AGG_VAL_SEL_MASK 0x3
+#define FCOE_DB_DATA_AGG_VAL_SEL_SHIFT 6
+ u8 agg_flags;
+ __le16 sq_prod;
+};
+#endif /* __FCOE_COMMON__ */
diff --git a/include/linux/qed/qed_fcoe_if.h b/include/linux/qed/qed_fcoe_if.h
new file mode 100644
index 0000000..bd6bcb8
--- /dev/null
+++ b/include/linux/qed/qed_fcoe_if.h
@@ -0,0 +1,145 @@
+#ifndef _QED_FCOE_IF_H
+#define _QED_FCOE_IF_H
+#include <linux/types.h>
+#include <linux/qed/qed_if.h>
+struct qed_fcoe_stats {
+ u64 fcoe_rx_byte_cnt;
+ u64 fcoe_rx_data_pkt_cnt;
+ u64 fcoe_rx_xfer_pkt_cnt;
+ u64 fcoe_rx_other_pkt_cnt;
+ u32 fcoe_silent_drop_pkt_cmdq_full_cnt;
+ u32 fcoe_silent_drop_pkt_rq_full_cnt;
+ u32 fcoe_silent_drop_pkt_crc_error_cnt;
+ u32 fcoe_silent_drop_pkt_task_invalid_cnt;
+ u32 fcoe_silent_drop_total_pkt_cnt;
+
+ u64 fcoe_tx_byte_cnt;
+ u64 fcoe_tx_data_pkt_cnt;
+ u64 fcoe_tx_xfer_pkt_cnt;
+ u64 fcoe_tx_other_pkt_cnt;
+};
+
+struct qed_dev_fcoe_info {
+ struct qed_dev_info common;
+
+ void __iomem *primary_dbq_rq_addr;
+ void __iomem *secondary_bdq_rq_addr;
+};
+
+struct qed_fcoe_params_offload {
+ dma_addr_t sq_pbl_addr;
+ dma_addr_t sq_curr_page_addr;
+ dma_addr_t sq_next_page_addr;
+
+ u8 src_mac[ETH_ALEN];
+ u8 dst_mac[ETH_ALEN];
+
+ u16 tx_max_fc_pay_len;
+ u16 e_d_tov_timer_val;
+ u16 rec_tov_timer_val;
+ u16 rx_max_fc_pay_len;
+ u16 vlan_tag;
+
+ struct fc_addr_nw s_id;
+ u8 max_conc_seqs_c3;
+ struct fc_addr_nw d_id;
+ u8 flags;
+ u8 def_q_idx;
+};
+
+#define MAX_TID_BLOCKS_FCOE (512)
+struct qed_fcoe_tid {
+ u32 size; /* In bytes per task */
+ u32 num_tids_per_block;
+ u8 *blocks[MAX_TID_BLOCKS_FCOE];
+};
+
+struct qed_fcoe_cb_ops {
+ struct qed_common_cb_ops common;
+ u32 (*get_login_failures)(void *cookie);
+};
+
+void qed_fcoe_set_pf_params(struct qed_dev *cdev,
+ struct qed_fcoe_pf_params *params);
+
+/**
+ * struct qed_fcoe_ops - qed FCoE operations.
+ * @common: common operations pointer
+ * @fill_dev_info: fills FCoE specific information
+ * @param cdev
+ * @param info
+ * @return 0 on sucesss, otherwise error value.
+ * @register_ops: register FCoE operations
+ * @param cdev
+ * @param ops - specified using qed_iscsi_cb_ops
+ * @param cookie - driver private
+ * @ll2: light L2 operations pointer
+ * @start: fcoe in FW
+ * @param cdev
+ * @param tasks - qed will fill information about tasks
+ * return 0 on success, otherwise error value.
+ * @stop: stops fcoe in FW
+ * @param cdev
+ * return 0 on success, otherwise error value.
+ * @acquire_conn: acquire a new fcoe connection
+ * @param cdev
+ * @param handle - qed will fill handle that should be
+ * used henceforth as identifier of the
+ * connection.
+ * @param p_doorbell - qed will fill the address of the
+ * doorbell.
+ * return 0 on sucesss, otherwise error value.
+ * @release_conn: release a previously acquired fcoe connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * return 0 on success, otherwise error value.
+ * @offload_conn: configures an offloaded connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * @param conn_info - the configuration to use for the
+ * offload.
+ * return 0 on success, otherwise error value.
+ * @destroy_conn: stops an offloaded connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * @param terminate_params
+ * return 0 on success, otherwise error value.
+ * @get_stats: gets FCoE related statistics
+ * @param cdev
+ * @param stats - pointer to struck that would be filled
+ * we stats
+ * return 0 on success, error otherwise.
+ */
+struct qed_fcoe_ops {
+ const struct qed_common_ops *common;
+
+ int (*fill_dev_info)(struct qed_dev *cdev,
+ struct qed_dev_fcoe_info *info);
+
+ void (*register_ops)(struct qed_dev *cdev,
+ struct qed_fcoe_cb_ops *ops, void *cookie);
+
+ const struct qed_ll2_ops *ll2;
+
+ int (*start)(struct qed_dev *cdev, struct qed_fcoe_tid *tasks);
+
+ int (*stop)(struct qed_dev *cdev);
+
+ int (*acquire_conn)(struct qed_dev *cdev,
+ u32 *handle,
+ u32 *fw_cid, void __iomem **p_doorbell);
+
+ int (*release_conn)(struct qed_dev *cdev, u32 handle);
+
+ int (*offload_conn)(struct qed_dev *cdev,
+ u32 handle,
+ struct qed_fcoe_params_offload *conn_info);
+ int (*destroy_conn)(struct qed_dev *cdev,
+ u32 handle, dma_addr_t terminate_params);
+
+ int (*get_stats)(struct qed_dev *cdev, struct qed_fcoe_stats *stats);
+};
+
+const struct qed_fcoe_ops *qed_get_fcoe_ops(void);
+void qed_put_fcoe_ops(void);
+#endif
diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index d1576a2..fde56c4 100644
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -59,7 +59,6 @@ enum dcbx_protocol_type {
#define QED_ROCE_PROTOCOL_INDEX (3)
-#ifdef CONFIG_DCB
#define QED_LLDP_CHASSIS_ID_STAT_LEN 4
#define QED_LLDP_PORT_ID_STAT_LEN 4
#define QED_DCBX_MAX_APP_PROTOCOL 32
@@ -155,7 +154,6 @@ struct qed_dcbx_get {
struct qed_dcbx_remote_params remote;
struct qed_dcbx_admin_params local;
};
-#endif
enum qed_led_mode {
QED_LED_MODE_OFF,
@@ -182,6 +180,38 @@ struct qed_eth_pf_params {
u16 num_cons;
};
+struct qed_fcoe_pf_params {
+ /* The following parameters are used during protocol-init */
+ u64 glbl_q_params_addr;
+ u64 bdq_pbl_base_addr[2];
+
+ /* The following parameters are used during HW-init
+ * and these parameters need to be passed as arguments
+ * to update_pf_params routine invoked before slowpath start
+ */
+ u16 num_cons;
+ u16 num_tasks;
+
+ /* The following parameters are used during protocol-init */
+ u16 sq_num_pbl_pages;
+
+ u16 cq_num_entries;
+ u16 cmdq_num_entries;
+ u16 rq_buffer_log_size;
+ u16 mtu;
+ u16 dummy_icid;
+ u16 bdq_xoff_threshold[2];
+ u16 bdq_xon_threshold[2];
+ u16 rq_buffer_size;
+ u8 num_cqs; /* num of global CQs */
+ u8 log_page_size;
+ u8 gl_rq_pi;
+ u8 gl_cmd_pi;
+ u8 debug_mode;
+ u8 is_target;
+ u8 bdq_pbl_num_entries[2];
+};
+
/* Most of the the parameters below are described in the FW iSCSI / TCP HSI */
struct qed_iscsi_pf_params {
u64 glbl_q_params_addr;
@@ -245,6 +275,7 @@ struct qed_rdma_pf_params {
struct qed_pf_params {
struct qed_eth_pf_params eth_pf_params;
+ struct qed_fcoe_pf_params fcoe_pf_params;
struct qed_iscsi_pf_params iscsi_pf_params;
struct qed_rdma_pf_params rdma_pf_params;
};
@@ -305,6 +336,7 @@ enum qed_sb_type {
enum qed_protocol {
QED_PROTOCOL_ETH,
QED_PROTOCOL_ISCSI,
+ QED_PROTOCOL_FCOE,
};
enum qed_link_mode_bits {
@@ -391,6 +423,7 @@ struct qed_int_info {
struct qed_common_cb_ops {
void (*link_update)(void *dev,
struct qed_link_output *link);
+ void (*dcbx_aen)(void *dev, struct qed_dcbx_get *get, u32 mib_type);
};
struct qed_selftest_ops {
@@ -494,6 +527,10 @@ struct qed_common_ops {
void (*simd_handler_clean)(struct qed_dev *cdev,
int index);
+ int (*dbg_grc)(struct qed_dev *cdev,
+ void *buffer, u32 *num_dumped_bytes);
+
+ int (*dbg_grc_size)(struct qed_dev *cdev);
int (*dbg_all_data) (struct qed_dev *cdev, void *buffer);
--
1.8.5.6
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH V2 net-next 1/2] qed: Add support for hardware offloaded FCoE.
@ 2017-01-25 20:33 ` Dupuis, Chad
0 siblings, 0 replies; 15+ messages in thread
From: Dupuis, Chad @ 2017-01-25 20:33 UTC (permalink / raw)
To: martin.petersen
Cc: linux-scsi, fcoe-devel, netdev, yuval.mintz, QLogic-Storage-Upstream
From: Arun Easi <arun.easi@qlogic.com>
This adds the backbone required for the various HW initalizations
which are necessary for the FCoE driver (qedf) for QLogic FastLinQ
4xxxx line of adapters - FW notification, resource initializations, etc.
Signed-off-by: Arun Easi <arun.easi@cavium.com>
Signed-off-by: Yuval Mintz <yuval.mintz@cavium.com>
---
drivers/net/ethernet/qlogic/Kconfig | 3 +
drivers/net/ethernet/qlogic/qed/Makefile | 1 +
drivers/net/ethernet/qlogic/qed/qed.h | 11 +
drivers/net/ethernet/qlogic/qed/qed_cxt.c | 98 ++-
drivers/net/ethernet/qlogic/qed/qed_cxt.h | 3 +
drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 13 +-
drivers/net/ethernet/qlogic/qed/qed_dcbx.h | 5 +-
drivers/net/ethernet/qlogic/qed/qed_dev.c | 205 ++++-
drivers/net/ethernet/qlogic/qed/qed_dev_api.h | 42 +
drivers/net/ethernet/qlogic/qed/qed_fcoe.c | 990 ++++++++++++++++++++++
drivers/net/ethernet/qlogic/qed/qed_fcoe.h | 52 ++
drivers/net/ethernet/qlogic/qed/qed_hsi.h | 781 ++++++++++++++++-
drivers/net/ethernet/qlogic/qed/qed_hw.c | 3 +
drivers/net/ethernet/qlogic/qed/qed_ll2.c | 25 +
drivers/net/ethernet/qlogic/qed/qed_ll2.h | 2 +-
drivers/net/ethernet/qlogic/qed/qed_main.c | 7 +
drivers/net/ethernet/qlogic/qed/qed_mcp.c | 3 +
drivers/net/ethernet/qlogic/qed/qed_mcp.h | 1 +
drivers/net/ethernet/qlogic/qed/qed_reg_addr.h | 8 +
drivers/net/ethernet/qlogic/qed/qed_sp.h | 4 +
drivers/net/ethernet/qlogic/qed/qed_sp_commands.c | 3 +
include/linux/qed/common_hsi.h | 10 +-
include/linux/qed/fcoe_common.h | 715 ++++++++++++++++
include/linux/qed/qed_fcoe_if.h | 145 ++++
include/linux/qed/qed_if.h | 41 +-
25 files changed, 3152 insertions(+), 19 deletions(-)
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
create mode 100644 include/linux/qed/fcoe_common.h
create mode 100644 include/linux/qed/qed_fcoe_if.h
diff --git a/drivers/net/ethernet/qlogic/Kconfig b/drivers/net/ethernet/qlogic/Kconfig
index 3cfd105..737b303 100644
--- a/drivers/net/ethernet/qlogic/Kconfig
+++ b/drivers/net/ethernet/qlogic/Kconfig
@@ -113,4 +113,7 @@ config QED_RDMA
config QED_ISCSI
bool
+config QED_FCOE
+ bool
+
endif # NET_VENDOR_QLOGIC
diff --git a/drivers/net/ethernet/qlogic/qed/Makefile b/drivers/net/ethernet/qlogic/qed/Makefile
index 729e437..e234083 100644
--- a/drivers/net/ethernet/qlogic/qed/Makefile
+++ b/drivers/net/ethernet/qlogic/qed/Makefile
@@ -7,3 +7,4 @@ qed-$(CONFIG_QED_SRIOV) += qed_sriov.o qed_vf.o
qed-$(CONFIG_QED_LL2) += qed_ll2.o
qed-$(CONFIG_QED_RDMA) += qed_roce.o
qed-$(CONFIG_QED_ISCSI) += qed_iscsi.o qed_ooo.o
+qed-$(CONFIG_QED_FCOE) += qed_fcoe.o
diff --git a/drivers/net/ethernet/qlogic/qed/qed.h b/drivers/net/ethernet/qlogic/qed/qed.h
index 1f61cf3..08f2885 100644
--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -60,6 +60,7 @@
#define QED_WFQ_UNIT 100
#define ISCSI_BDQ_ID(_port_id) (_port_id)
+#define FCOE_BDQ_ID(_port_id) ((_port_id) + 2)
#define QED_WID_SIZE (1024)
#define QED_PF_DEMS_SIZE (4)
@@ -167,6 +168,7 @@ struct qed_tunn_update_params {
*/
enum qed_pci_personality {
QED_PCI_ETH,
+ QED_PCI_FCOE,
QED_PCI_ISCSI,
QED_PCI_ETH_ROCE,
QED_PCI_DEFAULT /* default in shmem */
@@ -204,6 +206,7 @@ enum QED_FEATURE {
QED_VF,
QED_RDMA_CNQ,
QED_VF_L2_QUE,
+ QED_FCOE_CQ,
QED_MAX_FEATURES,
};
@@ -221,6 +224,7 @@ enum QED_PORT_MODE {
enum qed_dev_cap {
QED_DEV_CAP_ETH,
+ QED_DEV_CAP_FCOE,
QED_DEV_CAP_ISCSI,
QED_DEV_CAP_ROCE,
};
@@ -255,6 +259,10 @@ struct qed_hw_info {
u32 part_num[4];
unsigned char hw_mac_addr[ETH_ALEN];
+ u64 node_wwn;
+ u64 port_wwn;
+
+ u16 num_fcoe_conns;
struct qed_igu_info *p_igu_info;
@@ -410,6 +418,7 @@ struct qed_hwfn {
struct qed_ooo_info *p_ooo_info;
struct qed_rdma_info *p_rdma_info;
struct qed_iscsi_info *p_iscsi_info;
+ struct qed_fcoe_info *p_fcoe_info;
struct qed_pf_params pf_params;
bool b_rdma_enabled_in_prs;
@@ -618,11 +627,13 @@ struct qed_dev {
u8 protocol;
#define IS_QED_ETH_IF(cdev) ((cdev)->protocol == QED_PROTOCOL_ETH)
+#define IS_QED_FCOE_IF(cdev) ((cdev)->protocol == QED_PROTOCOL_FCOE)
/* Callbacks to protocol driver */
union {
struct qed_common_cb_ops *common;
struct qed_eth_cb_ops *eth;
+ struct qed_fcoe_cb_ops *fcoe;
struct qed_iscsi_cb_ops *iscsi;
} protocol_ops;
void *ops_cookie;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_cxt.c b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
index dcb8fc1..d42d03d 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_cxt.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
@@ -90,12 +90,14 @@
struct core_conn_context core_ctx;
struct eth_conn_context eth_ctx;
struct iscsi_conn_context iscsi_ctx;
+ struct fcoe_conn_context fcoe_ctx;
struct roce_conn_context roce_ctx;
};
-/* TYPE-0 task context - iSCSI */
+/* TYPE-0 task context - iSCSI, FCOE */
union type0_task_context {
struct iscsi_task_context iscsi_ctx;
+ struct fcoe_task_context fcoe_ctx;
};
/* TYPE-1 task context - ROCE */
@@ -240,15 +242,22 @@ struct qed_cxt_mngr {
static bool src_proto(enum protocol_type type)
{
return type == PROTOCOLID_ISCSI ||
+ type == PROTOCOLID_FCOE ||
type == PROTOCOLID_ROCE;
}
static bool tm_cid_proto(enum protocol_type type)
{
return type == PROTOCOLID_ISCSI ||
+ type == PROTOCOLID_FCOE ||
type == PROTOCOLID_ROCE;
}
+static bool tm_tid_proto(enum protocol_type type)
+{
+ return type == PROTOCOLID_FCOE;
+}
+
/* counts the iids for the CDU/CDUC ILT client configuration */
struct qed_cdu_iids {
u32 pf_cids;
@@ -307,6 +316,22 @@ static void qed_cxt_tm_iids(struct qed_cxt_mngr *p_mngr,
iids->pf_cids += p_cfg->cid_count;
iids->per_vf_cids += p_cfg->cids_per_vf;
}
+
+ if (tm_tid_proto(i)) {
+ struct qed_tid_seg *segs = p_cfg->tid_seg;
+
+ /* for each segment there is at most one
+ * protocol for which count is not 0.
+ */
+ for (j = 0; j < NUM_TASK_PF_SEGMENTS; j++)
+ iids->pf_tids[j] += segs[j].count;
+
+ /* The last array elelment is for the VFs. As for PF
+ * segments there can be only one protocol for
+ * which this value is not 0.
+ */
+ iids->per_vf_tids += segs[NUM_TASK_PF_SEGMENTS].count;
+ }
}
iids->pf_cids = roundup(iids->pf_cids, TM_ALIGN);
@@ -1694,9 +1719,42 @@ static void qed_tm_init_pf(struct qed_hwfn *p_hwfn)
/* @@@TBD how to enable the scan for the VFs */
}
+static void qed_prs_init_common(struct qed_hwfn *p_hwfn)
+{
+ if ((p_hwfn->hw_info.personality == QED_PCI_FCOE) &&
+ p_hwfn->pf_params.fcoe_pf_params.is_target)
+ STORE_RT_REG(p_hwfn,
+ PRS_REG_SEARCH_RESP_INITIATOR_TYPE_RT_OFFSET, 0);
+}
+
+static void qed_prs_init_pf(struct qed_hwfn *p_hwfn)
+{
+ struct qed_cxt_mngr *p_mngr = p_hwfn->p_cxt_mngr;
+ struct qed_conn_type_cfg *p_fcoe;
+ struct qed_tid_seg *p_tid;
+
+ p_fcoe = &p_mngr->conn_cfg[PROTOCOLID_FCOE];
+
+ /* If FCoE is active set the MAX OX_ID (tid) in the Parser */
+ if (!p_fcoe->cid_count)
+ return;
+
+ p_tid = &p_fcoe->tid_seg[QED_CXT_FCOE_TID_SEG];
+ if (p_hwfn->pf_params.fcoe_pf_params.is_target) {
+ STORE_RT_REG_AGG(p_hwfn,
+ PRS_REG_TASK_ID_MAX_TARGET_PF_RT_OFFSET,
+ p_tid->count);
+ } else {
+ STORE_RT_REG_AGG(p_hwfn,
+ PRS_REG_TASK_ID_MAX_INITIATOR_PF_RT_OFFSET,
+ p_tid->count);
+ }
+}
+
void qed_cxt_hw_init_common(struct qed_hwfn *p_hwfn)
{
qed_cdu_init_common(p_hwfn);
+ qed_prs_init_common(p_hwfn);
}
void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn)
@@ -1708,6 +1766,7 @@ void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn)
qed_ilt_init_pf(p_hwfn);
qed_src_init_pf(p_hwfn);
qed_tm_init_pf(p_hwfn);
+ qed_prs_init_pf(p_hwfn);
}
int qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn,
@@ -1885,6 +1944,27 @@ int qed_cxt_set_pf_params(struct qed_hwfn *p_hwfn)
p_params->num_cons, 1);
break;
}
+ case QED_PCI_FCOE:
+ {
+ struct qed_fcoe_pf_params *p_params;
+
+ p_params = &p_hwfn->pf_params.fcoe_pf_params;
+
+ if (p_params->num_cons && p_params->num_tasks) {
+ qed_cxt_set_proto_cid_count(p_hwfn,
+ PROTOCOLID_FCOE,
+ p_params->num_cons,
+ 0);
+
+ qed_cxt_set_proto_tid_count(p_hwfn, PROTOCOLID_FCOE,
+ QED_CXT_FCOE_TID_SEG, 0,
+ p_params->num_tasks, true);
+ } else {
+ DP_INFO(p_hwfn->cdev,
+ "Fcoe personality used without setting params!\n");
+ }
+ break;
+ }
case QED_PCI_ISCSI:
{
struct qed_iscsi_pf_params *p_params;
@@ -1927,6 +2007,10 @@ int qed_cxt_get_tid_mem_info(struct qed_hwfn *p_hwfn,
/* Verify the personality */
switch (p_hwfn->hw_info.personality) {
+ case QED_PCI_FCOE:
+ proto = PROTOCOLID_FCOE;
+ seg = QED_CXT_FCOE_TID_SEG;
+ break;
case QED_PCI_ISCSI:
proto = PROTOCOLID_ISCSI;
seg = QED_CXT_ISCSI_TID_SEG;
@@ -2215,15 +2299,19 @@ int qed_cxt_get_task_ctx(struct qed_hwfn *p_hwfn,
{
struct qed_cxt_mngr *p_mngr = p_hwfn->p_cxt_mngr;
struct qed_ilt_client_cfg *p_cli;
- struct qed_ilt_cli_blk *p_seg;
struct qed_tid_seg *p_seg_info;
- u32 proto, seg;
- u32 total_lines;
- u32 tid_size, ilt_idx;
+ struct qed_ilt_cli_blk *p_seg;
u32 num_tids_per_block;
+ u32 tid_size, ilt_idx;
+ u32 total_lines;
+ u32 proto, seg;
/* Verify the personality */
switch (p_hwfn->hw_info.personality) {
+ case QED_PCI_FCOE:
+ proto = PROTOCOLID_FCOE;
+ seg = QED_CXT_FCOE_TID_SEG;
+ break;
case QED_PCI_ISCSI:
proto = PROTOCOLID_ISCSI;
seg = QED_CXT_ISCSI_TID_SEG;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_cxt.h b/drivers/net/ethernet/qlogic/qed/qed_cxt.h
index 98f4973..8b01032 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_cxt.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_cxt.h
@@ -91,6 +91,7 @@ int qed_cxt_get_tid_mem_info(struct qed_hwfn *p_hwfn,
#define QED_CXT_ISCSI_TID_SEG PROTOCOLID_ISCSI
#define QED_CXT_ROCE_TID_SEG PROTOCOLID_ROCE
+#define QED_CXT_FCOE_TID_SEG PROTOCOLID_FCOE
enum qed_cxt_elem_type {
QED_ELEM_CXT,
QED_ELEM_SRQ,
@@ -204,4 +205,6 @@ u32 qed_cxt_get_proto_cid_start(struct qed_hwfn *p_hwfn,
#define QED_CTX_WORKING_MEM 0
#define QED_CTX_FL_MEM 1
+int qed_cxt_get_task_ctx(struct qed_hwfn *p_hwfn,
+ u32 tid, u8 ctx_type, void **task_ctx);
#endif
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
index dc0d2c9..5bd36a4 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
@@ -432,7 +432,6 @@ static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn)
return rc;
}
-#ifdef CONFIG_DCB
static void
qed_dcbx_get_priority_info(struct qed_hwfn *p_hwfn,
struct qed_dcbx_app_prio *p_prio,
@@ -749,7 +748,6 @@ static int qed_dcbx_process_mib_info(struct qed_hwfn *p_hwfn)
return 0;
}
-#endif
static int
qed_dcbx_read_local_lldp_mib(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
@@ -864,6 +862,15 @@ static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
return rc;
}
+void qed_dcbx_aen(struct qed_hwfn *hwfn, u32 mib_type)
+{
+ struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
+ void *cookie = hwfn->cdev->ops_cookie;
+
+ if (cookie && op->dcbx_aen)
+ op->dcbx_aen(cookie, &hwfn->p_dcbx_info->get, mib_type);
+}
+
/* Read updated MIB.
* Reconfigure QM and invoke PF update ramrod command if operational MIB
* change is detected.
@@ -890,6 +897,8 @@ static int qed_dcbx_read_mib(struct qed_hwfn *p_hwfn,
qed_sp_pf_update(p_hwfn);
}
}
+ qed_dcbx_get_params(p_hwfn, p_ptt, &p_hwfn->p_dcbx_info->get, type);
+ qed_dcbx_aen(p_hwfn, type);
return rc;
}
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
index d70300f..0fabe97 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
@@ -57,7 +57,6 @@ struct qed_dcbx_app_data {
u8 tc; /* Traffic Class */
};
-#ifdef CONFIG_DCB
#define QED_DCBX_VERSION_DISABLED 0
#define QED_DCBX_VERSION_IEEE 1
#define QED_DCBX_VERSION_CEE 2
@@ -73,7 +72,6 @@ struct qed_dcbx_set {
struct qed_dcbx_admin_params config;
u32 ver_num;
};
-#endif
struct qed_dcbx_results {
bool dcbx_enabled;
@@ -97,9 +95,8 @@ struct qed_dcbx_info {
struct qed_dcbx_results results;
struct dcbx_mib operational;
struct dcbx_mib remote;
-#ifdef CONFIG_DCB
struct qed_dcbx_set set;
-#endif
+ struct qed_dcbx_get get;
u8 dcbx_cap;
};
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 33e7201..5ee7f04 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -49,6 +49,7 @@
#include "qed_cxt.h"
#include "qed_dcbx.h"
#include "qed_dev_api.h"
+#include "qed_fcoe.h"
#include "qed_hsi.h"
#include "qed_hw.h"
#include "qed_init_ops.h"
@@ -172,6 +173,9 @@ void qed_resc_free(struct qed_dev *cdev)
#ifdef CONFIG_QED_LL2
qed_ll2_free(p_hwfn, p_hwfn->p_ll2_info);
#endif
+ if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
+ qed_fcoe_free(p_hwfn, p_hwfn->p_fcoe_info);
+
if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
qed_iscsi_free(p_hwfn, p_hwfn->p_iscsi_info);
qed_ooo_free(p_hwfn, p_hwfn->p_ooo_info);
@@ -433,6 +437,7 @@ int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
int qed_resc_alloc(struct qed_dev *cdev)
{
struct qed_iscsi_info *p_iscsi_info;
+ struct qed_fcoe_info *p_fcoe_info;
struct qed_ooo_info *p_ooo_info;
#ifdef CONFIG_QED_LL2
struct qed_ll2_info *p_ll2_info;
@@ -539,6 +544,14 @@ int qed_resc_alloc(struct qed_dev *cdev)
p_hwfn->p_ll2_info = p_ll2_info;
}
#endif
+
+ if (p_hwfn->hw_info.personality == QED_PCI_FCOE) {
+ p_fcoe_info = qed_fcoe_alloc(p_hwfn);
+ if (!p_fcoe_info)
+ goto alloc_no_mem;
+ p_hwfn->p_fcoe_info = p_fcoe_info;
+ }
+
if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
p_iscsi_info = qed_iscsi_alloc(p_hwfn);
if (!p_iscsi_info)
@@ -602,6 +615,9 @@ void qed_resc_setup(struct qed_dev *cdev)
if (p_hwfn->using_ll2)
qed_ll2_setup(p_hwfn, p_hwfn->p_ll2_info);
#endif
+ if (p_hwfn->hw_info.personality == QED_PCI_FCOE)
+ qed_fcoe_setup(p_hwfn, p_hwfn->p_fcoe_info);
+
if (p_hwfn->hw_info.personality == QED_PCI_ISCSI) {
qed_iscsi_setup(p_hwfn, p_hwfn->p_iscsi_info);
qed_ooo_setup(p_hwfn, p_hwfn->p_ooo_info);
@@ -994,7 +1010,8 @@ static int qed_hw_init_pf(struct qed_hwfn *p_hwfn,
/* Protocl Configuration */
STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_TCP_RT_OFFSET,
(p_hwfn->hw_info.personality == QED_PCI_ISCSI) ? 1 : 0);
- STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_FCOE_RT_OFFSET, 0);
+ STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_FCOE_RT_OFFSET,
+ (p_hwfn->hw_info.personality == QED_PCI_FCOE) ? 1 : 0);
STORE_RT_REG(p_hwfn, PRS_REG_SEARCH_ROCE_RT_OFFSET, 0);
/* Cleanup chip from previous driver if such remains exist */
@@ -1026,8 +1043,16 @@ static int qed_hw_init_pf(struct qed_hwfn *p_hwfn,
/* send function start command */
rc = qed_sp_pf_start(p_hwfn, p_tunn, p_hwfn->cdev->mf_mode,
allow_npar_tx_switch);
- if (rc)
+ if (rc) {
DP_NOTICE(p_hwfn, "Function start ramrod failed\n");
+ return rc;
+ }
+ if (p_hwfn->hw_info.personality == QED_PCI_FCOE) {
+ qed_wr(p_hwfn, p_ptt, PRS_REG_SEARCH_TAG1, BIT(2));
+ qed_wr(p_hwfn, p_ptt,
+ PRS_REG_PKT_LEN_STAT_TAGS_NOT_COUNTED_FIRST,
+ 0x100);
+ }
}
return rc;
}
@@ -1787,8 +1812,8 @@ static int qed_hw_get_resc(struct qed_hwfn *p_hwfn)
static int qed_hw_get_nvm_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
{
- u32 nvm_cfg1_offset, mf_mode, addr, generic_cont0, core_cfg;
u32 port_cfg_addr, link_temp, nvm_cfg_addr, device_capabilities;
+ u32 nvm_cfg1_offset, mf_mode, addr, generic_cont0, core_cfg;
struct qed_mcp_link_params *link;
/* Read global nvm_cfg address */
@@ -1934,6 +1959,9 @@ static int qed_hw_get_nvm_info(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ETHERNET)
__set_bit(QED_DEV_CAP_ETH,
&p_hwfn->hw_info.device_capabilities);
+ if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_FCOE)
+ __set_bit(QED_DEV_CAP_FCOE,
+ &p_hwfn->hw_info.device_capabilities);
if (device_capabilities & NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ISCSI)
__set_bit(QED_DEV_CAP_ISCSI,
&p_hwfn->hw_info.device_capabilities);
@@ -2671,6 +2699,177 @@ void qed_llh_remove_mac_filter(struct qed_hwfn *p_hwfn,
DP_NOTICE(p_hwfn, "Tried to remove a non-configured filter\n");
}
+int
+qed_llh_add_protocol_filter(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ u16 source_port_or_eth_type,
+ u16 dest_port, enum qed_llh_port_filter_type_t type)
+{
+ u32 high = 0, low = 0, en;
+ int i;
+
+ if (!(IS_MF_SI(p_hwfn) || IS_MF_DEFAULT(p_hwfn)))
+ return 0;
+
+ switch (type) {
+ case QED_LLH_FILTER_ETHERTYPE:
+ high = source_port_or_eth_type;
+ break;
+ case QED_LLH_FILTER_TCP_SRC_PORT:
+ case QED_LLH_FILTER_UDP_SRC_PORT:
+ low = source_port_or_eth_type << 16;
+ break;
+ case QED_LLH_FILTER_TCP_DEST_PORT:
+ case QED_LLH_FILTER_UDP_DEST_PORT:
+ low = dest_port;
+ break;
+ case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
+ case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
+ low = (source_port_or_eth_type << 16) | dest_port;
+ break;
+ default:
+ DP_NOTICE(p_hwfn,
+ "Non valid LLH protocol filter type %d\n", type);
+ return -EINVAL;
+ }
+ /* Find a free entry and utilize it */
+ for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
+ en = qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32));
+ if (en)
+ continue;
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE +
+ 2 * i * sizeof(u32), low);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE +
+ (2 * i + 1) * sizeof(u32), high);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_MODE + i * sizeof(u32), 1);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE +
+ i * sizeof(u32), 1 << type);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32), 1);
+ break;
+ }
+ if (i >= NIG_REG_LLH_FUNC_FILTER_EN_SIZE) {
+ DP_NOTICE(p_hwfn,
+ "Failed to find an empty LLH filter to utilize\n");
+ return -EINVAL;
+ }
+ switch (type) {
+ case QED_LLH_FILTER_ETHERTYPE:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "ETH type %x is added at %d\n",
+ source_port_or_eth_type, i);
+ break;
+ case QED_LLH_FILTER_TCP_SRC_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "TCP src port %x is added at %d\n",
+ source_port_or_eth_type, i);
+ break;
+ case QED_LLH_FILTER_UDP_SRC_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "UDP src port %x is added at %d\n",
+ source_port_or_eth_type, i);
+ break;
+ case QED_LLH_FILTER_TCP_DEST_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "TCP dst port %x is added at %d\n", dest_port, i);
+ break;
+ case QED_LLH_FILTER_UDP_DEST_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "UDP dst port %x is added at %d\n", dest_port, i);
+ break;
+ case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "TCP src/dst ports %x/%x are added at %d\n",
+ source_port_or_eth_type, dest_port, i);
+ break;
+ case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
+ DP_VERBOSE(p_hwfn, NETIF_MSG_HW,
+ "UDP src/dst ports %x/%x are added at %d\n",
+ source_port_or_eth_type, dest_port, i);
+ break;
+ }
+ return 0;
+}
+
+void
+qed_llh_remove_protocol_filter(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ u16 source_port_or_eth_type,
+ u16 dest_port,
+ enum qed_llh_port_filter_type_t type)
+{
+ u32 high = 0, low = 0;
+ int i;
+
+ if (!(IS_MF_SI(p_hwfn) || IS_MF_DEFAULT(p_hwfn)))
+ return;
+
+ switch (type) {
+ case QED_LLH_FILTER_ETHERTYPE:
+ high = source_port_or_eth_type;
+ break;
+ case QED_LLH_FILTER_TCP_SRC_PORT:
+ case QED_LLH_FILTER_UDP_SRC_PORT:
+ low = source_port_or_eth_type << 16;
+ break;
+ case QED_LLH_FILTER_TCP_DEST_PORT:
+ case QED_LLH_FILTER_UDP_DEST_PORT:
+ low = dest_port;
+ break;
+ case QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT:
+ case QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT:
+ low = (source_port_or_eth_type << 16) | dest_port;
+ break;
+ default:
+ DP_NOTICE(p_hwfn,
+ "Non valid LLH protocol filter type %d\n", type);
+ return;
+ }
+
+ for (i = 0; i < NIG_REG_LLH_FUNC_FILTER_EN_SIZE; i++) {
+ if (!qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32)))
+ continue;
+ if (!qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_MODE + i * sizeof(u32)))
+ continue;
+ if (!(qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE +
+ i * sizeof(u32)) & BIT(type)))
+ continue;
+ if (qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE +
+ 2 * i * sizeof(u32)) != low)
+ continue;
+ if (qed_rd(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE +
+ (2 * i + 1) * sizeof(u32)) != high)
+ continue;
+
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_EN + i * sizeof(u32), 0);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_MODE + i * sizeof(u32), 0);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_PROTOCOL_TYPE +
+ i * sizeof(u32), 0);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE + 2 * i * sizeof(u32), 0);
+ qed_wr(p_hwfn, p_ptt,
+ NIG_REG_LLH_FUNC_FILTER_VALUE +
+ (2 * i + 1) * sizeof(u32), 0);
+ break;
+ }
+
+ if (i >= NIG_REG_LLH_FUNC_FILTER_EN_SIZE)
+ DP_NOTICE(p_hwfn, "Tried to remove a non-configured filter\n");
+}
+
static int qed_set_coalesce(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
u32 hw_addr, void *p_eth_qzone,
size_t eth_qzone_size, u8 timeset)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev_api.h b/drivers/net/ethernet/qlogic/qed/qed_dev_api.h
index 5d37ba2..6812003 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev_api.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev_api.h
@@ -353,6 +353,48 @@ int qed_llh_add_mac_filter(struct qed_hwfn *p_hwfn,
void qed_llh_remove_mac_filter(struct qed_hwfn *p_hwfn,
struct qed_ptt *p_ptt, u8 *p_filter);
+enum qed_llh_port_filter_type_t {
+ QED_LLH_FILTER_ETHERTYPE,
+ QED_LLH_FILTER_TCP_SRC_PORT,
+ QED_LLH_FILTER_TCP_DEST_PORT,
+ QED_LLH_FILTER_TCP_SRC_AND_DEST_PORT,
+ QED_LLH_FILTER_UDP_SRC_PORT,
+ QED_LLH_FILTER_UDP_DEST_PORT,
+ QED_LLH_FILTER_UDP_SRC_AND_DEST_PORT
+};
+
+/**
+ * @brief qed_llh_add_protocol_filter - configures a protocol filter in llh
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ * @param source_port_or_eth_type - source port or ethertype to add
+ * @param dest_port - destination port to add
+ * @param type - type of filters and comparing
+ */
+int
+qed_llh_add_protocol_filter(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ u16 source_port_or_eth_type,
+ u16 dest_port,
+ enum qed_llh_port_filter_type_t type);
+
+/**
+ * @brief qed_llh_remove_protocol_filter - remove a protocol filter in llh
+ *
+ * @param p_hwfn
+ * @param p_ptt
+ * @param source_port_or_eth_type - source port or ethertype to add
+ * @param dest_port - destination port to add
+ * @param type - type of filters and comparing
+ */
+void
+qed_llh_remove_protocol_filter(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ u16 source_port_or_eth_type,
+ u16 dest_port,
+ enum qed_llh_port_filter_type_t type);
+
/**
* *@brief Cleanup of previous driver remains prior to load
*
diff --git a/drivers/net/ethernet/qlogic/qed/qed_fcoe.c b/drivers/net/ethernet/qlogic/qed/qed_fcoe.c
new file mode 100644
index 0000000..5118fcaf
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_fcoe.c
@@ -0,0 +1,990 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2016 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+#include <asm/param.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/log2.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/stddef.h>
+#include <linux/string.h>
+#include <linux/version.h>
+#include <linux/workqueue.h>
+#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#define __PREVENT_DUMP_MEM_ARR__
+#define __PREVENT_PXP_GLOBAL_WIN__
+#include "qed.h"
+#include "qed_cxt.h"
+#include "qed_dev_api.h"
+#include "qed_fcoe.h"
+#include "qed_hsi.h"
+#include "qed_hw.h"
+#include "qed_int.h"
+#include "qed_ll2.h"
+#include "qed_mcp.h"
+#include "qed_reg_addr.h"
+#include "qed_sp.h"
+#include "qed_sriov.h"
+#include <linux/qed/qed_fcoe_if.h>
+
+struct qed_fcoe_conn {
+ struct list_head list_entry;
+ bool free_on_delete;
+
+ u16 conn_id;
+ u32 icid;
+ u32 fw_cid;
+ u8 layer_code;
+
+ dma_addr_t sq_pbl_addr;
+ dma_addr_t sq_curr_page_addr;
+ dma_addr_t sq_next_page_addr;
+ dma_addr_t xferq_pbl_addr;
+ void *xferq_pbl_addr_virt_addr;
+ dma_addr_t xferq_addr[4];
+ void *xferq_addr_virt_addr[4];
+ dma_addr_t confq_pbl_addr;
+ void *confq_pbl_addr_virt_addr;
+ dma_addr_t confq_addr[2];
+ void *confq_addr_virt_addr[2];
+
+ dma_addr_t terminate_params;
+
+ u16 dst_mac_addr_lo;
+ u16 dst_mac_addr_mid;
+ u16 dst_mac_addr_hi;
+ u16 src_mac_addr_lo;
+ u16 src_mac_addr_mid;
+ u16 src_mac_addr_hi;
+
+ u16 tx_max_fc_pay_len;
+ u16 e_d_tov_timer_val;
+ u16 rec_tov_timer_val;
+ u16 rx_max_fc_pay_len;
+ u16 vlan_tag;
+ u16 physical_q0;
+
+ struct fc_addr_nw s_id;
+ u8 max_conc_seqs_c3;
+ struct fc_addr_nw d_id;
+ u8 flags;
+ u8 def_q_idx;
+};
+
+static int
+qed_sp_fcoe_func_start(struct qed_hwfn *p_hwfn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct qed_fcoe_pf_params *fcoe_pf_params = NULL;
+ struct fcoe_init_ramrod_params *p_ramrod = NULL;
+ struct fcoe_conn_context *p_cxt = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct fcoe_init_func_ramrod_data *p_data;
+ int rc = 0;
+ struct qed_sp_init_data init_data;
+ struct qed_cxt_info cxt_info;
+ u32 dummy_cid;
+ u16 tmp;
+ u8 i;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = qed_spq_get_cid(p_hwfn);
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ FCOE_RAMROD_CMD_ID_INIT_FUNC,
+ PROTOCOLID_FCOE, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.fcoe_init;
+ p_data = &p_ramrod->init_ramrod_data;
+ fcoe_pf_params = &p_hwfn->pf_params.fcoe_pf_params;
+
+ p_data->mtu = cpu_to_le16(fcoe_pf_params->mtu);
+ tmp = cpu_to_le16(fcoe_pf_params->sq_num_pbl_pages);
+ p_data->sq_num_pages_in_pbl = tmp;
+
+ rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &dummy_cid);
+ if (rc)
+ return rc;
+
+ cxt_info.iid = dummy_cid;
+ rc = qed_cxt_get_cid_info(p_hwfn, &cxt_info);
+ if (rc) {
+ DP_NOTICE(p_hwfn, "Cannot find context info for dummy cid=%d\n",
+ dummy_cid);
+ return rc;
+ }
+ p_cxt = cxt_info.p_cxt;
+ SET_FIELD(p_cxt->tstorm_ag_context.flags3,
+ TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN, 1);
+
+ fcoe_pf_params->dummy_icid = (u16)dummy_cid;
+
+ tmp = cpu_to_le16(fcoe_pf_params->num_tasks);
+ p_data->func_params.num_tasks = tmp;
+ p_data->func_params.log_page_size = fcoe_pf_params->log_page_size;
+ p_data->func_params.debug_mode = fcoe_pf_params->debug_mode;
+
+ DMA_REGPAIR_LE(p_data->q_params.glbl_q_params_addr,
+ fcoe_pf_params->glbl_q_params_addr);
+
+ tmp = cpu_to_le16(fcoe_pf_params->cq_num_entries);
+ p_data->q_params.cq_num_entries = tmp;
+
+ tmp = cpu_to_le16(fcoe_pf_params->cmdq_num_entries);
+ p_data->q_params.cmdq_num_entries = tmp;
+
+ tmp = fcoe_pf_params->num_cqs;
+ p_data->q_params.num_queues = (u8)tmp;
+
+ tmp = (u16)p_hwfn->hw_info.resc_start[QED_CMDQS_CQS];
+ p_data->q_params.queue_relative_offset = (u8)tmp;
+
+ for (i = 0; i < fcoe_pf_params->num_cqs; i++) {
+ tmp = cpu_to_le16(p_hwfn->sbs_info[i]->igu_sb_id);
+ p_data->q_params.cq_cmdq_sb_num_arr[i] = tmp;
+ }
+
+ p_data->q_params.cq_sb_pi = fcoe_pf_params->gl_rq_pi;
+ p_data->q_params.cmdq_sb_pi = fcoe_pf_params->gl_cmd_pi;
+
+ p_data->q_params.bdq_resource_id = FCOE_BDQ_ID(p_hwfn->port_id);
+
+ DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_RQ],
+ fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_RQ]);
+ p_data->q_params.bdq_pbl_num_entries[BDQ_ID_RQ] =
+ fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_RQ];
+ tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_RQ];
+ p_data->q_params.bdq_xoff_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
+ tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_RQ];
+ p_data->q_params.bdq_xon_threshold[BDQ_ID_RQ] = cpu_to_le16(tmp);
+
+ DMA_REGPAIR_LE(p_data->q_params.bdq_pbl_base_address[BDQ_ID_IMM_DATA],
+ fcoe_pf_params->bdq_pbl_base_addr[BDQ_ID_IMM_DATA]);
+ p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA] =
+ fcoe_pf_params->bdq_pbl_num_entries[BDQ_ID_IMM_DATA];
+ tmp = fcoe_pf_params->bdq_xoff_threshold[BDQ_ID_IMM_DATA];
+ p_data->q_params.bdq_xoff_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
+ tmp = fcoe_pf_params->bdq_xon_threshold[BDQ_ID_IMM_DATA];
+ p_data->q_params.bdq_xon_threshold[BDQ_ID_IMM_DATA] = cpu_to_le16(tmp);
+ tmp = fcoe_pf_params->rq_buffer_size;
+ p_data->q_params.rq_buffer_size = cpu_to_le16(tmp);
+
+ if (fcoe_pf_params->is_target) {
+ SET_FIELD(p_data->q_params.q_validity,
+ SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
+ if (p_data->q_params.bdq_pbl_num_entries[BDQ_ID_IMM_DATA])
+ SET_FIELD(p_data->q_params.q_validity,
+ SCSI_INIT_FUNC_QUEUES_IMM_DATA_VALID, 1);
+ SET_FIELD(p_data->q_params.q_validity,
+ SCSI_INIT_FUNC_QUEUES_CMD_VALID, 1);
+ } else {
+ SET_FIELD(p_data->q_params.q_validity,
+ SCSI_INIT_FUNC_QUEUES_RQ_VALID, 1);
+ }
+
+ rc = qed_spq_post(p_hwfn, p_ent, NULL);
+
+ return rc;
+}
+
+static int
+qed_sp_fcoe_conn_offload(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn *p_conn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct fcoe_conn_offload_ramrod_params *p_ramrod = NULL;
+ struct fcoe_conn_offload_ramrod_data *p_data;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ u16 pq_id = 0, tmp;
+ int rc;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_conn->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ FCOE_RAMROD_CMD_ID_OFFLOAD_CONN,
+ PROTOCOLID_FCOE, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.fcoe_conn_ofld;
+ p_data = &p_ramrod->offload_ramrod_data;
+
+ /* Transmission PQ is the first of the PF */
+ pq_id = qed_get_qm_pq(p_hwfn, PROTOCOLID_FCOE, NULL);
+ p_conn->physical_q0 = cpu_to_le16(pq_id);
+ p_data->physical_q0 = cpu_to_le16(pq_id);
+
+ p_data->conn_id = cpu_to_le16(p_conn->conn_id);
+ DMA_REGPAIR_LE(p_data->sq_pbl_addr, p_conn->sq_pbl_addr);
+ DMA_REGPAIR_LE(p_data->sq_curr_page_addr, p_conn->sq_curr_page_addr);
+ DMA_REGPAIR_LE(p_data->sq_next_page_addr, p_conn->sq_next_page_addr);
+ DMA_REGPAIR_LE(p_data->xferq_pbl_addr, p_conn->xferq_pbl_addr);
+ DMA_REGPAIR_LE(p_data->xferq_curr_page_addr, p_conn->xferq_addr[0]);
+ DMA_REGPAIR_LE(p_data->xferq_next_page_addr, p_conn->xferq_addr[1]);
+
+ DMA_REGPAIR_LE(p_data->respq_pbl_addr, p_conn->confq_pbl_addr);
+ DMA_REGPAIR_LE(p_data->respq_curr_page_addr, p_conn->confq_addr[0]);
+ DMA_REGPAIR_LE(p_data->respq_next_page_addr, p_conn->confq_addr[1]);
+
+ p_data->dst_mac_addr_lo = cpu_to_le16(p_conn->dst_mac_addr_lo);
+ p_data->dst_mac_addr_mid = cpu_to_le16(p_conn->dst_mac_addr_mid);
+ p_data->dst_mac_addr_hi = cpu_to_le16(p_conn->dst_mac_addr_hi);
+ p_data->src_mac_addr_lo = cpu_to_le16(p_conn->src_mac_addr_lo);
+ p_data->src_mac_addr_mid = cpu_to_le16(p_conn->src_mac_addr_mid);
+ p_data->src_mac_addr_hi = cpu_to_le16(p_conn->src_mac_addr_hi);
+
+ tmp = cpu_to_le16(p_conn->tx_max_fc_pay_len);
+ p_data->tx_max_fc_pay_len = tmp;
+ tmp = cpu_to_le16(p_conn->e_d_tov_timer_val);
+ p_data->e_d_tov_timer_val = tmp;
+ tmp = cpu_to_le16(p_conn->rec_tov_timer_val);
+ p_data->rec_rr_tov_timer_val = tmp;
+ tmp = cpu_to_le16(p_conn->rx_max_fc_pay_len);
+ p_data->rx_max_fc_pay_len = tmp;
+
+ p_data->vlan_tag = cpu_to_le16(p_conn->vlan_tag);
+ p_data->s_id.addr_hi = p_conn->s_id.addr_hi;
+ p_data->s_id.addr_mid = p_conn->s_id.addr_mid;
+ p_data->s_id.addr_lo = p_conn->s_id.addr_lo;
+ p_data->max_conc_seqs_c3 = p_conn->max_conc_seqs_c3;
+ p_data->d_id.addr_hi = p_conn->d_id.addr_hi;
+ p_data->d_id.addr_mid = p_conn->d_id.addr_mid;
+ p_data->d_id.addr_lo = p_conn->d_id.addr_lo;
+ p_data->flags = p_conn->flags;
+ p_data->def_q_idx = p_conn->def_q_idx;
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int
+qed_sp_fcoe_conn_destroy(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn *p_conn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct fcoe_conn_terminate_ramrod_params *p_ramrod = NULL;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ int rc = 0;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_conn->icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ FCOE_RAMROD_CMD_ID_TERMINATE_CONN,
+ PROTOCOLID_FCOE, &init_data);
+ if (rc)
+ return rc;
+
+ p_ramrod = &p_ent->ramrod.fcoe_conn_terminate;
+ DMA_REGPAIR_LE(p_ramrod->terminate_ramrod_data.terminate_params_addr,
+ p_conn->terminate_params);
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int
+qed_sp_fcoe_func_stop(struct qed_hwfn *p_hwfn,
+ enum spq_mode comp_mode,
+ struct qed_spq_comp_cb *p_comp_addr)
+{
+ struct qed_ptt *p_ptt = p_hwfn->p_main_ptt;
+ struct qed_spq_entry *p_ent = NULL;
+ struct qed_sp_init_data init_data;
+ u32 active_segs = 0;
+ int rc = 0;
+
+ /* Get SPQ entry */
+ memset(&init_data, 0, sizeof(init_data));
+ init_data.cid = p_hwfn->pf_params.fcoe_pf_params.dummy_icid;
+ init_data.opaque_fid = p_hwfn->hw_info.opaque_fid;
+ init_data.comp_mode = comp_mode;
+ init_data.p_comp_data = p_comp_addr;
+
+ rc = qed_sp_init_request(p_hwfn, &p_ent,
+ FCOE_RAMROD_CMD_ID_DESTROY_FUNC,
+ PROTOCOLID_FCOE, &init_data);
+ if (rc)
+ return rc;
+
+ active_segs = qed_rd(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK);
+ active_segs &= ~BIT(QED_CXT_FCOE_TID_SEG);
+ qed_wr(p_hwfn, p_ptt, TM_REG_PF_ENABLE_TASK, active_segs);
+
+ return qed_spq_post(p_hwfn, p_ent, NULL);
+}
+
+static int
+qed_fcoe_allocate_connection(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn **p_out_conn)
+{
+ struct qed_fcoe_conn *p_conn = NULL;
+ void *p_addr;
+ u32 i;
+
+ spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
+ if (!list_empty(&p_hwfn->p_fcoe_info->free_list))
+ p_conn =
+ list_first_entry(&p_hwfn->p_fcoe_info->free_list,
+ struct qed_fcoe_conn, list_entry);
+ if (p_conn) {
+ list_del(&p_conn->list_entry);
+ spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
+ *p_out_conn = p_conn;
+ return 0;
+ }
+ spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
+
+ p_conn = kzalloc(sizeof(*p_conn), GFP_KERNEL);
+ if (!p_conn)
+ return -ENOMEM;
+
+ p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ &p_conn->xferq_pbl_addr, GFP_KERNEL);
+ if (!p_addr)
+ goto nomem_pbl_xferq;
+ p_conn->xferq_pbl_addr_virt_addr = p_addr;
+
+ for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
+ p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ &p_conn->xferq_addr[i], GFP_KERNEL);
+ if (!p_addr)
+ goto nomem_xferq;
+ p_conn->xferq_addr_virt_addr[i] = p_addr;
+
+ p_addr = p_conn->xferq_pbl_addr_virt_addr;
+ ((dma_addr_t *)p_addr)[i] = p_conn->xferq_addr[i];
+ }
+
+ p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ &p_conn->confq_pbl_addr, GFP_KERNEL);
+ if (!p_addr)
+ goto nomem_xferq;
+ p_conn->confq_pbl_addr_virt_addr = p_addr;
+
+ for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
+ p_addr = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ &p_conn->confq_addr[i], GFP_KERNEL);
+ if (!p_addr)
+ goto nomem_confq;
+ p_conn->confq_addr_virt_addr[i] = p_addr;
+
+ p_addr = p_conn->confq_pbl_addr_virt_addr;
+ ((dma_addr_t *)p_addr)[i] = p_conn->confq_addr[i];
+ }
+
+ p_conn->free_on_delete = true;
+ *p_out_conn = p_conn;
+ return 0;
+
+nomem_confq:
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->confq_pbl_addr_virt_addr,
+ p_conn->confq_pbl_addr);
+ for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++)
+ if (p_conn->confq_addr_virt_addr[i])
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->confq_addr_virt_addr[i],
+ p_conn->confq_addr[i]);
+nomem_xferq:
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->xferq_pbl_addr_virt_addr,
+ p_conn->xferq_pbl_addr);
+ for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++)
+ if (p_conn->xferq_addr_virt_addr[i])
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->xferq_addr_virt_addr[i],
+ p_conn->xferq_addr[i]);
+nomem_pbl_xferq:
+ kfree(p_conn);
+ return -ENOMEM;
+}
+
+static void qed_fcoe_free_connection(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn *p_conn)
+{
+ u32 i;
+
+ if (!p_conn)
+ return;
+
+ if (p_conn->confq_pbl_addr_virt_addr)
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->confq_pbl_addr_virt_addr,
+ p_conn->confq_pbl_addr);
+
+ for (i = 0; i < ARRAY_SIZE(p_conn->confq_addr); i++) {
+ if (!p_conn->confq_addr_virt_addr[i])
+ continue;
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->confq_addr_virt_addr[i],
+ p_conn->confq_addr[i]);
+ }
+
+ if (p_conn->xferq_pbl_addr_virt_addr)
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->xferq_pbl_addr_virt_addr,
+ p_conn->xferq_pbl_addr);
+
+ for (i = 0; i < ARRAY_SIZE(p_conn->xferq_addr); i++) {
+ if (!p_conn->xferq_addr_virt_addr[i])
+ continue;
+ dma_free_coherent(&p_hwfn->cdev->pdev->dev,
+ QED_CHAIN_PAGE_SIZE,
+ p_conn->xferq_addr_virt_addr[i],
+ p_conn->xferq_addr[i]);
+ }
+ kfree(p_conn);
+}
+
+static void __iomem *qed_fcoe_get_db_addr(struct qed_hwfn *p_hwfn, u32 cid)
+{
+ return (u8 __iomem *)p_hwfn->doorbells +
+ qed_db_addr(cid, DQ_DEMS_LEGACY);
+}
+
+static void __iomem *qed_fcoe_get_primary_bdq_prod(struct qed_hwfn *p_hwfn,
+ u8 bdq_id)
+{
+ u8 bdq_function_id = FCOE_BDQ_ID(p_hwfn->port_id);
+
+ return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_MSDM_RAM +
+ MSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id, bdq_id);
+}
+
+static void __iomem *qed_fcoe_get_secondary_bdq_prod(struct qed_hwfn *p_hwfn,
+ u8 bdq_id)
+{
+ u8 bdq_function_id = FCOE_BDQ_ID(p_hwfn->port_id);
+
+ return (u8 __iomem *)p_hwfn->regview + GTT_BAR0_MAP_REG_TSDM_RAM +
+ TSTORM_SCSI_BDQ_EXT_PROD_OFFSET(bdq_function_id, bdq_id);
+}
+
+struct qed_fcoe_info *qed_fcoe_alloc(struct qed_hwfn *p_hwfn)
+{
+ struct qed_fcoe_info *p_fcoe_info;
+
+ /* Allocate LL2's set struct */
+ p_fcoe_info = kzalloc(sizeof(*p_fcoe_info), GFP_KERNEL);
+ if (!p_fcoe_info) {
+ DP_NOTICE(p_hwfn, "Failed to allocate qed_fcoe_info'\n");
+ return NULL;
+ }
+ INIT_LIST_HEAD(&p_fcoe_info->free_list);
+ return p_fcoe_info;
+}
+
+void qed_fcoe_setup(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info)
+{
+ struct fcoe_task_context *p_task_ctx = NULL;
+ int rc;
+ u32 i;
+
+ spin_lock_init(&p_fcoe_info->lock);
+ for (i = 0; i < p_hwfn->pf_params.fcoe_pf_params.num_tasks; i++) {
+ rc = qed_cxt_get_task_ctx(p_hwfn, i,
+ QED_CTX_WORKING_MEM,
+ (void **)&p_task_ctx);
+ if (rc)
+ continue;
+
+ memset(p_task_ctx, 0, sizeof(struct fcoe_task_context));
+ SET_FIELD(p_task_ctx->timer_context.logical_client_0,
+ TIMERS_CONTEXT_VALIDLC0, 1);
+ SET_FIELD(p_task_ctx->timer_context.logical_client_1,
+ TIMERS_CONTEXT_VALIDLC1, 1);
+ SET_FIELD(p_task_ctx->tstorm_ag_context.flags0,
+ TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE, 1);
+ }
+}
+
+void qed_fcoe_free(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info)
+{
+ struct qed_fcoe_conn *p_conn = NULL;
+
+ if (!p_fcoe_info)
+ return;
+
+ while (!list_empty(&p_fcoe_info->free_list)) {
+ p_conn = list_first_entry(&p_fcoe_info->free_list,
+ struct qed_fcoe_conn, list_entry);
+ if (!p_conn)
+ break;
+ list_del(&p_conn->list_entry);
+ qed_fcoe_free_connection(p_hwfn, p_conn);
+ }
+
+ kfree(p_fcoe_info);
+}
+
+static int
+qed_fcoe_acquire_connection(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn *p_in_conn,
+ struct qed_fcoe_conn **p_out_conn)
+{
+ struct qed_fcoe_conn *p_conn = NULL;
+ int rc = 0;
+ u32 icid;
+
+ spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
+ rc = qed_cxt_acquire_cid(p_hwfn, PROTOCOLID_FCOE, &icid);
+ spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
+ if (rc)
+ return rc;
+
+ /* Use input connection [if provided] or allocate a new one */
+ if (p_in_conn) {
+ p_conn = p_in_conn;
+ } else {
+ rc = qed_fcoe_allocate_connection(p_hwfn, &p_conn);
+ if (rc) {
+ spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
+ qed_cxt_release_cid(p_hwfn, icid);
+ spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
+ return rc;
+ }
+ }
+
+ p_conn->icid = icid;
+ p_conn->fw_cid = (p_hwfn->hw_info.opaque_fid << 16) | icid;
+ *p_out_conn = p_conn;
+
+ return rc;
+}
+
+static void qed_fcoe_release_connection(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_conn *p_conn)
+{
+ spin_lock_bh(&p_hwfn->p_fcoe_info->lock);
+ list_add_tail(&p_conn->list_entry, &p_hwfn->p_fcoe_info->free_list);
+ qed_cxt_release_cid(p_hwfn, p_conn->icid);
+ spin_unlock_bh(&p_hwfn->p_fcoe_info->lock);
+}
+
+static void _qed_fcoe_get_tstats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_fcoe_stats *p_stats)
+{
+ struct fcoe_rx_stat tstats;
+ u32 tstats_addr;
+
+ memset(&tstats, 0, sizeof(tstats));
+ tstats_addr = BAR0_MAP_REG_TSDM_RAM +
+ TSTORM_FCOE_RX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &tstats, tstats_addr, sizeof(tstats));
+
+ p_stats->fcoe_rx_byte_cnt = HILO_64_REGPAIR(tstats.fcoe_rx_byte_cnt);
+ p_stats->fcoe_rx_data_pkt_cnt =
+ HILO_64_REGPAIR(tstats.fcoe_rx_data_pkt_cnt);
+ p_stats->fcoe_rx_xfer_pkt_cnt =
+ HILO_64_REGPAIR(tstats.fcoe_rx_xfer_pkt_cnt);
+ p_stats->fcoe_rx_other_pkt_cnt =
+ HILO_64_REGPAIR(tstats.fcoe_rx_other_pkt_cnt);
+
+ p_stats->fcoe_silent_drop_pkt_cmdq_full_cnt =
+ le32_to_cpu(tstats.fcoe_silent_drop_pkt_cmdq_full_cnt);
+ p_stats->fcoe_silent_drop_pkt_rq_full_cnt =
+ le32_to_cpu(tstats.fcoe_silent_drop_pkt_rq_full_cnt);
+ p_stats->fcoe_silent_drop_pkt_crc_error_cnt =
+ le32_to_cpu(tstats.fcoe_silent_drop_pkt_crc_error_cnt);
+ p_stats->fcoe_silent_drop_pkt_task_invalid_cnt =
+ le32_to_cpu(tstats.fcoe_silent_drop_pkt_task_invalid_cnt);
+ p_stats->fcoe_silent_drop_total_pkt_cnt =
+ le32_to_cpu(tstats.fcoe_silent_drop_total_pkt_cnt);
+}
+
+static void _qed_fcoe_get_pstats(struct qed_hwfn *p_hwfn,
+ struct qed_ptt *p_ptt,
+ struct qed_fcoe_stats *p_stats)
+{
+ struct fcoe_tx_stat pstats;
+ u32 pstats_addr;
+
+ memset(&pstats, 0, sizeof(pstats));
+ pstats_addr = BAR0_MAP_REG_PSDM_RAM +
+ PSTORM_FCOE_TX_STATS_OFFSET(p_hwfn->rel_pf_id);
+ qed_memcpy_from(p_hwfn, p_ptt, &pstats, pstats_addr, sizeof(pstats));
+
+ p_stats->fcoe_tx_byte_cnt = HILO_64_REGPAIR(pstats.fcoe_tx_byte_cnt);
+ p_stats->fcoe_tx_data_pkt_cnt =
+ HILO_64_REGPAIR(pstats.fcoe_tx_data_pkt_cnt);
+ p_stats->fcoe_tx_xfer_pkt_cnt =
+ HILO_64_REGPAIR(pstats.fcoe_tx_xfer_pkt_cnt);
+ p_stats->fcoe_tx_other_pkt_cnt =
+ HILO_64_REGPAIR(pstats.fcoe_tx_other_pkt_cnt);
+}
+
+static int qed_fcoe_get_stats(struct qed_hwfn *p_hwfn,
+ struct qed_fcoe_stats *p_stats)
+{
+ struct qed_ptt *p_ptt;
+
+ memset(p_stats, 0, sizeof(*p_stats));
+
+ p_ptt = qed_ptt_acquire(p_hwfn);
+
+ if (!p_ptt) {
+ DP_ERR(p_hwfn, "Failed to acquire ptt\n");
+ return -EINVAL;
+ }
+
+ _qed_fcoe_get_tstats(p_hwfn, p_ptt, p_stats);
+ _qed_fcoe_get_pstats(p_hwfn, p_ptt, p_stats);
+
+ qed_ptt_release(p_hwfn, p_ptt);
+
+ return 0;
+}
+
+struct qed_hash_fcoe_con {
+ struct hlist_node node;
+ struct qed_fcoe_conn *con;
+};
+
+static int qed_fill_fcoe_dev_info(struct qed_dev *cdev,
+ struct qed_dev_fcoe_info *info)
+{
+ struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev);
+ int rc;
+
+ memset(info, 0, sizeof(*info));
+ rc = qed_fill_dev_info(cdev, &info->common);
+
+ info->primary_dbq_rq_addr =
+ qed_fcoe_get_primary_bdq_prod(hwfn, BDQ_ID_RQ);
+ info->secondary_bdq_rq_addr =
+ qed_fcoe_get_secondary_bdq_prod(hwfn, BDQ_ID_RQ);
+
+ return rc;
+}
+
+static void qed_register_fcoe_ops(struct qed_dev *cdev,
+ struct qed_fcoe_cb_ops *ops, void *cookie)
+{
+ cdev->protocol_ops.fcoe = ops;
+ cdev->ops_cookie = cookie;
+}
+
+static struct qed_hash_fcoe_con *qed_fcoe_get_hash(struct qed_dev *cdev,
+ u32 handle)
+{
+ struct qed_hash_fcoe_con *hash_con = NULL;
+
+ if (!(cdev->flags & QED_FLAG_STORAGE_STARTED))
+ return NULL;
+
+ hash_for_each_possible(cdev->connections, hash_con, node, handle) {
+ if (hash_con->con->icid == handle)
+ break;
+ }
+
+ if (!hash_con || (hash_con->con->icid != handle))
+ return NULL;
+
+ return hash_con;
+}
+
+static int qed_fcoe_stop(struct qed_dev *cdev)
+{
+ int rc;
+
+ if (!(cdev->flags & QED_FLAG_STORAGE_STARTED)) {
+ DP_NOTICE(cdev, "fcoe already stopped\n");
+ return 0;
+ }
+
+ if (!hash_empty(cdev->connections)) {
+ DP_NOTICE(cdev,
+ "Can't stop fcoe - not all connections were returned\n");
+ return -EINVAL;
+ }
+
+ /* Stop the fcoe */
+ rc = qed_sp_fcoe_func_stop(QED_LEADING_HWFN(cdev),
+ QED_SPQ_MODE_EBLOCK, NULL);
+ cdev->flags &= ~QED_FLAG_STORAGE_STARTED;
+
+ return rc;
+}
+
+static int qed_fcoe_start(struct qed_dev *cdev, struct qed_fcoe_tid *tasks)
+{
+ int rc;
+
+ if (cdev->flags & QED_FLAG_STORAGE_STARTED) {
+ DP_NOTICE(cdev, "fcoe already started;\n");
+ return 0;
+ }
+
+ rc = qed_sp_fcoe_func_start(QED_LEADING_HWFN(cdev),
+ QED_SPQ_MODE_EBLOCK, NULL);
+ if (rc) {
+ DP_NOTICE(cdev, "Failed to start fcoe\n");
+ return rc;
+ }
+
+ cdev->flags |= QED_FLAG_STORAGE_STARTED;
+ hash_init(cdev->connections);
+
+ if (tasks) {
+ struct qed_tid_mem *tid_info = kzalloc(sizeof(*tid_info),
+ GFP_ATOMIC);
+
+ if (!tid_info) {
+ DP_NOTICE(cdev,
+ "Failed to allocate tasks information\n");
+ qed_fcoe_stop(cdev);
+ return -ENOMEM;
+ }
+
+ rc = qed_cxt_get_tid_mem_info(QED_LEADING_HWFN(cdev), tid_info);
+ if (rc) {
+ DP_NOTICE(cdev, "Failed to gather task information\n");
+ qed_fcoe_stop(cdev);
+ kfree(tid_info);
+ return rc;
+ }
+
+ /* Fill task information */
+ tasks->size = tid_info->tid_size;
+ tasks->num_tids_per_block = tid_info->num_tids_per_block;
+ memcpy(tasks->blocks, tid_info->blocks,
+ MAX_TID_BLOCKS_FCOE * sizeof(u8 *));
+
+ kfree(tid_info);
+ }
+
+ return 0;
+}
+
+static int qed_fcoe_acquire_conn(struct qed_dev *cdev,
+ u32 *handle,
+ u32 *fw_cid, void __iomem **p_doorbell)
+{
+ struct qed_hash_fcoe_con *hash_con;
+ int rc;
+
+ /* Allocate a hashed connection */
+ hash_con = kzalloc(sizeof(*hash_con), GFP_KERNEL);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to allocate hashed connection\n");
+ return -ENOMEM;
+ }
+
+ /* Acquire the connection */
+ rc = qed_fcoe_acquire_connection(QED_LEADING_HWFN(cdev), NULL,
+ &hash_con->con);
+ if (rc) {
+ DP_NOTICE(cdev, "Failed to acquire Connection\n");
+ kfree(hash_con);
+ return rc;
+ }
+
+ /* Added the connection to hash table */
+ *handle = hash_con->con->icid;
+ *fw_cid = hash_con->con->fw_cid;
+ hash_add(cdev->connections, &hash_con->node, *handle);
+
+ if (p_doorbell)
+ *p_doorbell = qed_fcoe_get_db_addr(QED_LEADING_HWFN(cdev),
+ *handle);
+
+ return 0;
+}
+
+static int qed_fcoe_release_conn(struct qed_dev *cdev, u32 handle)
+{
+ struct qed_hash_fcoe_con *hash_con;
+
+ hash_con = qed_fcoe_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ hlist_del(&hash_con->node);
+ qed_fcoe_release_connection(QED_LEADING_HWFN(cdev), hash_con->con);
+ kfree(hash_con);
+
+ return 0;
+}
+
+static int qed_fcoe_offload_conn(struct qed_dev *cdev,
+ u32 handle,
+ struct qed_fcoe_params_offload *conn_info)
+{
+ struct qed_hash_fcoe_con *hash_con;
+ struct qed_fcoe_conn *con;
+
+ hash_con = qed_fcoe_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ /* Update the connection with information from the params */
+ con = hash_con->con;
+
+ con->sq_pbl_addr = conn_info->sq_pbl_addr;
+ con->sq_curr_page_addr = conn_info->sq_curr_page_addr;
+ con->sq_next_page_addr = conn_info->sq_next_page_addr;
+ con->tx_max_fc_pay_len = conn_info->tx_max_fc_pay_len;
+ con->e_d_tov_timer_val = conn_info->e_d_tov_timer_val;
+ con->rec_tov_timer_val = conn_info->rec_tov_timer_val;
+ con->rx_max_fc_pay_len = conn_info->rx_max_fc_pay_len;
+ con->vlan_tag = conn_info->vlan_tag;
+ con->max_conc_seqs_c3 = conn_info->max_conc_seqs_c3;
+ con->flags = conn_info->flags;
+ con->def_q_idx = conn_info->def_q_idx;
+
+ con->src_mac_addr_hi = (conn_info->src_mac[5] << 8) |
+ conn_info->src_mac[4];
+ con->src_mac_addr_mid = (conn_info->src_mac[3] << 8) |
+ conn_info->src_mac[2];
+ con->src_mac_addr_lo = (conn_info->src_mac[1] << 8) |
+ conn_info->src_mac[0];
+ con->dst_mac_addr_hi = (conn_info->dst_mac[5] << 8) |
+ conn_info->dst_mac[4];
+ con->dst_mac_addr_mid = (conn_info->dst_mac[3] << 8) |
+ conn_info->dst_mac[2];
+ con->dst_mac_addr_lo = (conn_info->dst_mac[1] << 8) |
+ conn_info->dst_mac[0];
+
+ con->s_id.addr_hi = conn_info->s_id.addr_hi;
+ con->s_id.addr_mid = conn_info->s_id.addr_mid;
+ con->s_id.addr_lo = conn_info->s_id.addr_lo;
+ con->d_id.addr_hi = conn_info->d_id.addr_hi;
+ con->d_id.addr_mid = conn_info->d_id.addr_mid;
+ con->d_id.addr_lo = conn_info->d_id.addr_lo;
+
+ return qed_sp_fcoe_conn_offload(QED_LEADING_HWFN(cdev), con,
+ QED_SPQ_MODE_EBLOCK, NULL);
+}
+
+static int qed_fcoe_destroy_conn(struct qed_dev *cdev,
+ u32 handle, dma_addr_t terminate_params)
+{
+ struct qed_hash_fcoe_con *hash_con;
+ struct qed_fcoe_conn *con;
+
+ hash_con = qed_fcoe_get_hash(cdev, handle);
+ if (!hash_con) {
+ DP_NOTICE(cdev, "Failed to find connection for handle %d\n",
+ handle);
+ return -EINVAL;
+ }
+
+ /* Update the connection with information from the params */
+ con = hash_con->con;
+ con->terminate_params = terminate_params;
+
+ return qed_sp_fcoe_conn_destroy(QED_LEADING_HWFN(cdev), con,
+ QED_SPQ_MODE_EBLOCK, NULL);
+}
+
+static int qed_fcoe_stats(struct qed_dev *cdev, struct qed_fcoe_stats *stats)
+{
+ return qed_fcoe_get_stats(QED_LEADING_HWFN(cdev), stats);
+}
+
+void qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
+ struct qed_mcp_fcoe_stats *stats)
+{
+ struct qed_fcoe_stats proto_stats;
+
+ /* Retrieve FW statistics */
+ memset(&proto_stats, 0, sizeof(proto_stats));
+ if (qed_fcoe_stats(cdev, &proto_stats)) {
+ DP_VERBOSE(cdev, QED_MSG_STORAGE,
+ "Failed to collect FCoE statistics\n");
+ return;
+ }
+
+ /* Translate FW statistics into struct */
+ stats->rx_pkts = proto_stats.fcoe_rx_data_pkt_cnt +
+ proto_stats.fcoe_rx_xfer_pkt_cnt +
+ proto_stats.fcoe_rx_other_pkt_cnt;
+ stats->tx_pkts = proto_stats.fcoe_tx_data_pkt_cnt +
+ proto_stats.fcoe_tx_xfer_pkt_cnt +
+ proto_stats.fcoe_tx_other_pkt_cnt;
+ stats->fcs_err = proto_stats.fcoe_silent_drop_pkt_crc_error_cnt;
+
+ /* Request protocol driver to fill-in the rest */
+ if (cdev->protocol_ops.fcoe && cdev->ops_cookie) {
+ struct qed_fcoe_cb_ops *ops = cdev->protocol_ops.fcoe;
+ void *cookie = cdev->ops_cookie;
+
+ if (ops->get_login_failures)
+ stats->login_failure = ops->get_login_failures(cookie);
+ }
+}
+
+static const struct qed_fcoe_ops qed_fcoe_ops_pass = {
+ .common = &qed_common_ops_pass,
+ .ll2 = &qed_ll2_ops_pass,
+ .fill_dev_info = &qed_fill_fcoe_dev_info,
+ .start = &qed_fcoe_start,
+ .stop = &qed_fcoe_stop,
+ .register_ops = &qed_register_fcoe_ops,
+ .acquire_conn = &qed_fcoe_acquire_conn,
+ .release_conn = &qed_fcoe_release_conn,
+ .offload_conn = &qed_fcoe_offload_conn,
+ .destroy_conn = &qed_fcoe_destroy_conn,
+ .get_stats = &qed_fcoe_stats,
+};
+
+const struct qed_fcoe_ops *qed_get_fcoe_ops(void)
+{
+ return &qed_fcoe_ops_pass;
+}
+EXPORT_SYMBOL(qed_get_fcoe_ops);
+
+void qed_put_fcoe_ops(void)
+{
+}
+EXPORT_SYMBOL(qed_put_fcoe_ops);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_fcoe.h b/drivers/net/ethernet/qlogic/qed/qed_fcoe.h
new file mode 100644
index 0000000..72a3643
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qed/qed_fcoe.h
@@ -0,0 +1,52 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2016 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#ifndef _QED_FCOE_H
+#define _QED_FCOE_H
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/qed/qed_fcoe_if.h>
+#include <linux/qed/qed_chain.h>
+#include "qed.h"
+#include "qed_hsi.h"
+#include "qed_mcp.h"
+#include "qed_sp.h"
+
+struct qed_fcoe_info {
+ spinlock_t lock; /* Connection resources. */
+ struct list_head free_list;
+};
+
+#if IS_ENABLED(CONFIG_QED_FCOE)
+struct qed_fcoe_info *qed_fcoe_alloc(struct qed_hwfn *p_hwfn);
+
+void qed_fcoe_setup(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info);
+
+void qed_fcoe_free(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info);
+void qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
+ struct qed_mcp_fcoe_stats *stats);
+#else /* CONFIG_QED_FCOE */
+static inline struct qed_fcoe_info *
+qed_fcoe_alloc(struct qed_hwfn *p_hwfn) { return NULL; }
+static inline void
+qed_fcoe_setup(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info) {}
+static inline void
+qed_fcoe_free(struct qed_hwfn *p_hwfn, struct qed_fcoe_info *p_fcoe_info) {}
+static inline void
+qed_get_protocol_stats_fcoe(struct qed_dev *cdev,
+ struct qed_mcp_fcoe_stats *stats) {}
+#endif /* CONFIG_QED_FCOE */
+
+#ifdef CONFIG_QED_LL2
+extern const struct qed_common_ops qed_common_ops_pass;
+extern const struct qed_ll2_ops qed_ll2_ops_pass;
+#endif
+
+#endif /* _QED_FCOE_H */
diff --git a/drivers/net/ethernet/qlogic/qed/qed_hsi.h b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
index 5d31189..37c2bfb 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_hsi.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_hsi.h
@@ -43,10 +43,12 @@
#include <linux/qed/common_hsi.h>
#include <linux/qed/storage_common.h>
#include <linux/qed/tcp_common.h>
+#include <linux/qed/fcoe_common.h>
#include <linux/qed/eth_common.h>
#include <linux/qed/iscsi_common.h>
#include <linux/qed/rdma_common.h>
#include <linux/qed/roce_common.h>
+#include <linux/qed/qed_fcoe_if.h>
struct qed_hwfn;
struct qed_ptt;
@@ -937,7 +939,7 @@ struct mstorm_vf_zone {
enum personality_type {
BAD_PERSONALITY_TYP,
PERSONALITY_ISCSI,
- PERSONALITY_RESERVED2,
+ PERSONALITY_FCOE,
PERSONALITY_RDMA_AND_ETH,
PERSONALITY_RESERVED3,
PERSONALITY_CORE,
@@ -3473,6 +3475,10 @@ void qed_set_geneve_enable(struct qed_hwfn *p_hwfn,
#define TSTORM_RDMA_QUEUE_STAT_OFFSET(rdma_stat_counter_id) \
(IRO[46].base + ((rdma_stat_counter_id) * IRO[46].m1))
#define TSTORM_RDMA_QUEUE_STAT_SIZE (IRO[46].size)
+#define TSTORM_FCOE_RX_STATS_OFFSET(pf_id) \
+ (IRO[43].base + ((pf_id) * IRO[43].m1))
+#define PSTORM_FCOE_TX_STATS_OFFSET(pf_id) \
+ (IRO[44].base + ((pf_id) * IRO[44].m1))
static const struct iro iro_arr[47] = {
{0x0, 0x0, 0x0, 0x0, 0x8},
@@ -7407,6 +7413,769 @@ struct ystorm_roce_resp_conn_ag_ctx {
__le32 reg3;
};
+struct ystorm_fcoe_conn_st_ctx {
+ u8 func_mode;
+ u8 cos;
+ u8 conf_version;
+ u8 eth_hdr_size;
+ __le16 stat_ram_addr;
+ __le16 mtu;
+ __le16 max_fc_payload_len;
+ __le16 tx_max_fc_pay_len;
+ u8 fcp_cmd_size;
+ u8 fcp_rsp_size;
+ __le16 mss;
+ struct regpair reserved;
+ u8 protection_info_flags;
+#define YSTORM_FCOE_CONN_ST_CTX_SUPPORT_PROTECTION_MASK 0x1
+#define YSTORM_FCOE_CONN_ST_CTX_SUPPORT_PROTECTION_SHIFT 0
+#define YSTORM_FCOE_CONN_ST_CTX_VALID_MASK 0x1
+#define YSTORM_FCOE_CONN_ST_CTX_VALID_SHIFT 1
+#define YSTORM_FCOE_CONN_ST_CTX_RESERVED1_MASK 0x3F
+#define YSTORM_FCOE_CONN_ST_CTX_RESERVED1_SHIFT 2
+ u8 dst_protection_per_mss;
+ u8 src_protection_per_mss;
+ u8 ptu_log_page_size;
+ u8 flags;
+#define YSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_MASK 0x1
+#define YSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_SHIFT 0
+#define YSTORM_FCOE_CONN_ST_CTX_OUTER_VLAN_FLAG_MASK 0x1
+#define YSTORM_FCOE_CONN_ST_CTX_OUTER_VLAN_FLAG_SHIFT 1
+#define YSTORM_FCOE_CONN_ST_CTX_RSRV_MASK 0x3F
+#define YSTORM_FCOE_CONN_ST_CTX_RSRV_SHIFT 2
+ u8 fcp_xfer_size;
+ u8 reserved3[2];
+};
+
+struct fcoe_vlan_fields {
+ __le16 fields;
+#define FCOE_VLAN_FIELDS_VID_MASK 0xFFF
+#define FCOE_VLAN_FIELDS_VID_SHIFT 0
+#define FCOE_VLAN_FIELDS_CLI_MASK 0x1
+#define FCOE_VLAN_FIELDS_CLI_SHIFT 12
+#define FCOE_VLAN_FIELDS_PRI_MASK 0x7
+#define FCOE_VLAN_FIELDS_PRI_SHIFT 13
+};
+
+union fcoe_vlan_field_union {
+ struct fcoe_vlan_fields fields;
+ __le16 val;
+};
+
+union fcoe_vlan_vif_field_union {
+ union fcoe_vlan_field_union vlan;
+ __le16 vif;
+};
+
+struct pstorm_fcoe_eth_context_section {
+ u8 remote_addr_3;
+ u8 remote_addr_2;
+ u8 remote_addr_1;
+ u8 remote_addr_0;
+ u8 local_addr_1;
+ u8 local_addr_0;
+ u8 remote_addr_5;
+ u8 remote_addr_4;
+ u8 local_addr_5;
+ u8 local_addr_4;
+ u8 local_addr_3;
+ u8 local_addr_2;
+ union fcoe_vlan_vif_field_union vif_outer_vlan;
+ __le16 vif_outer_eth_type;
+ union fcoe_vlan_vif_field_union inner_vlan;
+ __le16 inner_eth_type;
+};
+
+struct pstorm_fcoe_conn_st_ctx {
+ u8 func_mode;
+ u8 cos;
+ u8 conf_version;
+ u8 rsrv;
+ __le16 stat_ram_addr;
+ __le16 mss;
+ struct regpair abts_cleanup_addr;
+ struct pstorm_fcoe_eth_context_section eth;
+ u8 sid_2;
+ u8 sid_1;
+ u8 sid_0;
+ u8 flags;
+#define PSTORM_FCOE_CONN_ST_CTX_VNTAG_VLAN_MASK 0x1
+#define PSTORM_FCOE_CONN_ST_CTX_VNTAG_VLAN_SHIFT 0
+#define PSTORM_FCOE_CONN_ST_CTX_SUPPORT_REC_RR_TOV_MASK 0x1
+#define PSTORM_FCOE_CONN_ST_CTX_SUPPORT_REC_RR_TOV_SHIFT 1
+#define PSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_MASK 0x1
+#define PSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_SHIFT 2
+#define PSTORM_FCOE_CONN_ST_CTX_OUTER_VLAN_FLAG_MASK 0x1
+#define PSTORM_FCOE_CONN_ST_CTX_OUTER_VLAN_FLAG_SHIFT 3
+#define PSTORM_FCOE_CONN_ST_CTX_RESERVED_MASK 0xF
+#define PSTORM_FCOE_CONN_ST_CTX_RESERVED_SHIFT 4
+ u8 did_2;
+ u8 did_1;
+ u8 did_0;
+ u8 src_mac_index;
+ __le16 rec_rr_tov_val;
+ u8 q_relative_offset;
+ u8 reserved1;
+};
+
+struct xstorm_fcoe_conn_st_ctx {
+ u8 func_mode;
+ u8 src_mac_index;
+ u8 conf_version;
+ u8 cached_wqes_avail;
+ __le16 stat_ram_addr;
+ u8 flags;
+#define XSTORM_FCOE_CONN_ST_CTX_SQ_DEFERRED_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_SQ_DEFERRED_SHIFT 0
+#define XSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_SHIFT 1
+#define XSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_ORIG_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_INNER_VLAN_FLAG_ORIG_SHIFT 2
+#define XSTORM_FCOE_CONN_ST_CTX_LAST_QUEUE_HANDLED_MASK 0x3
+#define XSTORM_FCOE_CONN_ST_CTX_LAST_QUEUE_HANDLED_SHIFT 3
+#define XSTORM_FCOE_CONN_ST_CTX_RSRV_MASK 0x7
+#define XSTORM_FCOE_CONN_ST_CTX_RSRV_SHIFT 5
+ u8 cached_wqes_offset;
+ u8 reserved2;
+ u8 eth_hdr_size;
+ u8 seq_id;
+ u8 max_conc_seqs;
+ __le16 num_pages_in_pbl;
+ __le16 reserved;
+ struct regpair sq_pbl_addr;
+ struct regpair sq_curr_page_addr;
+ struct regpair sq_next_page_addr;
+ struct regpair xferq_pbl_addr;
+ struct regpair xferq_curr_page_addr;
+ struct regpair xferq_next_page_addr;
+ struct regpair respq_pbl_addr;
+ struct regpair respq_curr_page_addr;
+ struct regpair respq_next_page_addr;
+ __le16 mtu;
+ __le16 tx_max_fc_pay_len;
+ __le16 max_fc_payload_len;
+ __le16 min_frame_size;
+ __le16 sq_pbl_next_index;
+ __le16 respq_pbl_next_index;
+ u8 fcp_cmd_byte_credit;
+ u8 fcp_rsp_byte_credit;
+ __le16 protection_info;
+#define XSTORM_FCOE_CONN_ST_CTX_PROTECTION_PERF_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_PROTECTION_PERF_SHIFT 0
+#define XSTORM_FCOE_CONN_ST_CTX_SUPPORT_PROTECTION_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_SUPPORT_PROTECTION_SHIFT 1
+#define XSTORM_FCOE_CONN_ST_CTX_VALID_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_VALID_SHIFT 2
+#define XSTORM_FCOE_CONN_ST_CTX_FRAME_PROT_ALIGNED_MASK 0x1
+#define XSTORM_FCOE_CONN_ST_CTX_FRAME_PROT_ALIGNED_SHIFT 3
+#define XSTORM_FCOE_CONN_ST_CTX_RESERVED3_MASK 0xF
+#define XSTORM_FCOE_CONN_ST_CTX_RESERVED3_SHIFT 4
+#define XSTORM_FCOE_CONN_ST_CTX_DST_PROTECTION_PER_MSS_MASK 0xFF
+#define XSTORM_FCOE_CONN_ST_CTX_DST_PROTECTION_PER_MSS_SHIFT 8
+ __le16 xferq_pbl_next_index;
+ __le16 page_size;
+ u8 mid_seq;
+ u8 fcp_xfer_byte_credit;
+ u8 reserved1[2];
+ struct fcoe_wqe cached_wqes[16];
+};
+
+struct xstorm_fcoe_conn_ag_ctx {
+ u8 reserved0;
+ u8 fcoe_state;
+ u8 flags0;
+#define XSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM0_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM0_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED1_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED1_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED2_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED2_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM3_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM3_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED3_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED3_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED4_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED4_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED5_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED5_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED6_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED6_SHIFT 7
+ u8 flags1;
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED7_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED7_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED8_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED8_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED9_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED9_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_BIT11_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT11_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_BIT12_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT12_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_BIT13_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT13_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_BIT14_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT14_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_BIT15_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT15_SHIFT 7
+ u8 flags2;
+#define XSTORM_FCOE_CONN_AG_CTX_CF0_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF0_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF1_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF1_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF2_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF2_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF3_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF3_SHIFT 6
+ u8 flags3;
+#define XSTORM_FCOE_CONN_AG_CTX_CF4_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF4_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF5_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF5_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF6_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF6_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF7_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF7_SHIFT 6
+ u8 flags4;
+#define XSTORM_FCOE_CONN_AG_CTX_CF8_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF8_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF9_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF9_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF10_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF10_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF11_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF11_SHIFT 6
+ u8 flags5;
+#define XSTORM_FCOE_CONN_AG_CTX_CF12_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF12_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF13_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF13_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF14_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF14_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF15_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF15_SHIFT 6
+ u8 flags6;
+#define XSTORM_FCOE_CONN_AG_CTX_CF16_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF16_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF17_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF17_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF18_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF18_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_DQ_CF_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_DQ_CF_SHIFT 6
+ u8 flags7;
+#define XSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED10_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED10_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_SLOW_PATH_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_SLOW_PATH_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF0EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF0EN_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_CF1EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF1EN_SHIFT 7
+ u8 flags8;
+#define XSTORM_FCOE_CONN_AG_CTX_CF2EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF2EN_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF3EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF3EN_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_CF4EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF4EN_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF5EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF5EN_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_CF6EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF6EN_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF7EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF7EN_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_CF8EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF8EN_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_CF9EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF9EN_SHIFT 7
+ u8 flags9;
+#define XSTORM_FCOE_CONN_AG_CTX_CF10EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF10EN_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_CF11EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF11EN_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_CF12EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF12EN_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_CF13EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF13EN_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_CF14EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF14EN_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF15EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF15EN_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_CF16EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF16EN_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_CF17EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF17EN_SHIFT 7
+ u8 flags10;
+#define XSTORM_FCOE_CONN_AG_CTX_CF18EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF18EN_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_DQ_CF_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_DQ_CF_EN_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_EN_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED11_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED11_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_SLOW_PATH_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_SLOW_PATH_EN_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_CF23EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_CF23EN_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED12_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED12_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED13_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED13_SHIFT 7
+ u8 flags11;
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED14_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED14_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED15_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED15_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED16_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESERVED16_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_RULE5EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE5EN_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_RULE6EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE6EN_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_RULE7EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE7EN_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED1_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED1_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_XFERQ_DECISION_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_XFERQ_DECISION_EN_SHIFT 7
+ u8 flags12;
+#define XSTORM_FCOE_CONN_AG_CTX_SQ_DECISION_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_SQ_DECISION_EN_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RULE11EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE11EN_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED2_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED2_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED3_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED3_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_RULE14EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE14EN_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_RULE15EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE15EN_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_RULE16EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE16EN_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_RULE17EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE17EN_SHIFT 7
+ u8 flags13;
+#define XSTORM_FCOE_CONN_AG_CTX_RESPQ_DECISION_EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RESPQ_DECISION_EN_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_RULE19EN_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_RULE19EN_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED4_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED4_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED5_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED5_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED6_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED6_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED7_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED7_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED8_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED8_SHIFT 6
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED9_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_A0_RESERVED9_SHIFT 7
+ u8 flags14;
+#define XSTORM_FCOE_CONN_AG_CTX_BIT16_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT16_SHIFT 0
+#define XSTORM_FCOE_CONN_AG_CTX_BIT17_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT17_SHIFT 1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT18_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT18_SHIFT 2
+#define XSTORM_FCOE_CONN_AG_CTX_BIT19_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT19_SHIFT 3
+#define XSTORM_FCOE_CONN_AG_CTX_BIT20_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT20_SHIFT 4
+#define XSTORM_FCOE_CONN_AG_CTX_BIT21_MASK 0x1
+#define XSTORM_FCOE_CONN_AG_CTX_BIT21_SHIFT 5
+#define XSTORM_FCOE_CONN_AG_CTX_CF23_MASK 0x3
+#define XSTORM_FCOE_CONN_AG_CTX_CF23_SHIFT 6
+ u8 byte2;
+ __le16 physical_q0;
+ __le16 word1;
+ __le16 word2;
+ __le16 sq_cons;
+ __le16 sq_prod;
+ __le16 xferq_prod;
+ __le16 xferq_cons;
+ u8 byte3;
+ u8 byte4;
+ u8 byte5;
+ u8 byte6;
+ __le32 remain_io;
+ __le32 reg1;
+ __le32 reg2;
+ __le32 reg3;
+ __le32 reg4;
+ __le32 reg5;
+ __le32 reg6;
+ __le16 respq_prod;
+ __le16 respq_cons;
+ __le16 word9;
+ __le16 word10;
+ __le32 reg7;
+ __le32 reg8;
+};
+
+struct ustorm_fcoe_conn_st_ctx {
+ struct regpair respq_pbl_addr;
+ __le16 num_pages_in_pbl;
+ u8 ptu_log_page_size;
+ u8 log_page_size;
+ __le16 respq_prod;
+ u8 reserved[2];
+};
+
+struct tstorm_fcoe_conn_ag_ctx {
+ u8 reserved0;
+ u8 fcoe_state;
+ u8 flags0;
+#define TSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM0_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_EXIST_IN_QM0_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_BIT1_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT1_SHIFT 1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT2_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT2_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_BIT3_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT3_SHIFT 3
+#define TSTORM_FCOE_CONN_AG_CTX_BIT4_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT4_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_BIT5_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_BIT5_SHIFT 5
+#define TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_SHIFT 6
+ u8 flags1;
+#define TSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_CF_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_CF_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_CF2_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF2_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_TIMER_STOP_ALL_CF_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_TIMER_STOP_ALL_CF_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_CF4_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF4_SHIFT 6
+ u8 flags2;
+#define TSTORM_FCOE_CONN_AG_CTX_CF5_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF5_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_CF6_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF6_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_CF7_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF7_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_CF8_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF8_SHIFT 6
+ u8 flags3;
+#define TSTORM_FCOE_CONN_AG_CTX_CF9_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF9_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_CF10_MASK 0x3
+#define TSTORM_FCOE_CONN_AG_CTX_CF10_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_DUMMY_TIMER_CF_EN_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_CF_EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_FLUSH_Q0_CF_EN_SHIFT 5
+#define TSTORM_FCOE_CONN_AG_CTX_CF2EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF2EN_SHIFT 6
+#define TSTORM_FCOE_CONN_AG_CTX_TIMER_STOP_ALL_CF_EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_TIMER_STOP_ALL_CF_EN_SHIFT 7
+ u8 flags4;
+#define TSTORM_FCOE_CONN_AG_CTX_CF4EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF4EN_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_CF5EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF5EN_SHIFT 1
+#define TSTORM_FCOE_CONN_AG_CTX_CF6EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF6EN_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_CF7EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF7EN_SHIFT 3
+#define TSTORM_FCOE_CONN_AG_CTX_CF8EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF8EN_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_CF9EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF9EN_SHIFT 5
+#define TSTORM_FCOE_CONN_AG_CTX_CF10EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_CF10EN_SHIFT 6
+#define TSTORM_FCOE_CONN_AG_CTX_RULE0EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE0EN_SHIFT 7
+ u8 flags5;
+#define TSTORM_FCOE_CONN_AG_CTX_RULE1EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE1EN_SHIFT 0
+#define TSTORM_FCOE_CONN_AG_CTX_RULE2EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE2EN_SHIFT 1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE3EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE3EN_SHIFT 2
+#define TSTORM_FCOE_CONN_AG_CTX_RULE4EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE4EN_SHIFT 3
+#define TSTORM_FCOE_CONN_AG_CTX_RULE5EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE5EN_SHIFT 4
+#define TSTORM_FCOE_CONN_AG_CTX_RULE6EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE6EN_SHIFT 5
+#define TSTORM_FCOE_CONN_AG_CTX_RULE7EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE7EN_SHIFT 6
+#define TSTORM_FCOE_CONN_AG_CTX_RULE8EN_MASK 0x1
+#define TSTORM_FCOE_CONN_AG_CTX_RULE8EN_SHIFT 7
+ __le32 reg0;
+ __le32 reg1;
+};
+
+struct ustorm_fcoe_conn_ag_ctx {
+ u8 byte0;
+ u8 byte1;
+ u8 flags0;
+#define USTORM_FCOE_CONN_AG_CTX_BIT0_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_BIT0_SHIFT 0
+#define USTORM_FCOE_CONN_AG_CTX_BIT1_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_BIT1_SHIFT 1
+#define USTORM_FCOE_CONN_AG_CTX_CF0_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF0_SHIFT 2
+#define USTORM_FCOE_CONN_AG_CTX_CF1_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF1_SHIFT 4
+#define USTORM_FCOE_CONN_AG_CTX_CF2_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF2_SHIFT 6
+ u8 flags1;
+#define USTORM_FCOE_CONN_AG_CTX_CF3_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF3_SHIFT 0
+#define USTORM_FCOE_CONN_AG_CTX_CF4_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF4_SHIFT 2
+#define USTORM_FCOE_CONN_AG_CTX_CF5_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF5_SHIFT 4
+#define USTORM_FCOE_CONN_AG_CTX_CF6_MASK 0x3
+#define USTORM_FCOE_CONN_AG_CTX_CF6_SHIFT 6
+ u8 flags2;
+#define USTORM_FCOE_CONN_AG_CTX_CF0EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF0EN_SHIFT 0
+#define USTORM_FCOE_CONN_AG_CTX_CF1EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF1EN_SHIFT 1
+#define USTORM_FCOE_CONN_AG_CTX_CF2EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF2EN_SHIFT 2
+#define USTORM_FCOE_CONN_AG_CTX_CF3EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF3EN_SHIFT 3
+#define USTORM_FCOE_CONN_AG_CTX_CF4EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF4EN_SHIFT 4
+#define USTORM_FCOE_CONN_AG_CTX_CF5EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF5EN_SHIFT 5
+#define USTORM_FCOE_CONN_AG_CTX_CF6EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_CF6EN_SHIFT 6
+#define USTORM_FCOE_CONN_AG_CTX_RULE0EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE0EN_SHIFT 7
+ u8 flags3;
+#define USTORM_FCOE_CONN_AG_CTX_RULE1EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE1EN_SHIFT 0
+#define USTORM_FCOE_CONN_AG_CTX_RULE2EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE2EN_SHIFT 1
+#define USTORM_FCOE_CONN_AG_CTX_RULE3EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE3EN_SHIFT 2
+#define USTORM_FCOE_CONN_AG_CTX_RULE4EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE4EN_SHIFT 3
+#define USTORM_FCOE_CONN_AG_CTX_RULE5EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE5EN_SHIFT 4
+#define USTORM_FCOE_CONN_AG_CTX_RULE6EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE6EN_SHIFT 5
+#define USTORM_FCOE_CONN_AG_CTX_RULE7EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE7EN_SHIFT 6
+#define USTORM_FCOE_CONN_AG_CTX_RULE8EN_MASK 0x1
+#define USTORM_FCOE_CONN_AG_CTX_RULE8EN_SHIFT 7
+ u8 byte2;
+ u8 byte3;
+ __le16 word0;
+ __le16 word1;
+ __le32 reg0;
+ __le32 reg1;
+ __le32 reg2;
+ __le32 reg3;
+ __le16 word2;
+ __le16 word3;
+};
+
+struct tstorm_fcoe_conn_st_ctx {
+ __le16 stat_ram_addr;
+ __le16 rx_max_fc_payload_len;
+ __le16 e_d_tov_val;
+ u8 flags;
+#define TSTORM_FCOE_CONN_ST_CTX_INC_SEQ_CNT_MASK 0x1
+#define TSTORM_FCOE_CONN_ST_CTX_INC_SEQ_CNT_SHIFT 0
+#define TSTORM_FCOE_CONN_ST_CTX_SUPPORT_CONF_MASK 0x1
+#define TSTORM_FCOE_CONN_ST_CTX_SUPPORT_CONF_SHIFT 1
+#define TSTORM_FCOE_CONN_ST_CTX_DEF_Q_IDX_MASK 0x3F
+#define TSTORM_FCOE_CONN_ST_CTX_DEF_Q_IDX_SHIFT 2
+ u8 timers_cleanup_invocation_cnt;
+ __le32 reserved1[2];
+ __le32 dst_mac_address_bytes0to3;
+ __le16 dst_mac_address_bytes4to5;
+ __le16 ramrod_echo;
+ u8 flags1;
+#define TSTORM_FCOE_CONN_ST_CTX_MODE_MASK 0x3
+#define TSTORM_FCOE_CONN_ST_CTX_MODE_SHIFT 0
+#define TSTORM_FCOE_CONN_ST_CTX_RESERVED_MASK 0x3F
+#define TSTORM_FCOE_CONN_ST_CTX_RESERVED_SHIFT 2
+ u8 q_relative_offset;
+ u8 bdq_resource_id;
+ u8 reserved0[5];
+};
+
+struct mstorm_fcoe_conn_ag_ctx {
+ u8 byte0;
+ u8 byte1;
+ u8 flags0;
+#define MSTORM_FCOE_CONN_AG_CTX_BIT0_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_BIT0_SHIFT 0
+#define MSTORM_FCOE_CONN_AG_CTX_BIT1_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_BIT1_SHIFT 1
+#define MSTORM_FCOE_CONN_AG_CTX_CF0_MASK 0x3
+#define MSTORM_FCOE_CONN_AG_CTX_CF0_SHIFT 2
+#define MSTORM_FCOE_CONN_AG_CTX_CF1_MASK 0x3
+#define MSTORM_FCOE_CONN_AG_CTX_CF1_SHIFT 4
+#define MSTORM_FCOE_CONN_AG_CTX_CF2_MASK 0x3
+#define MSTORM_FCOE_CONN_AG_CTX_CF2_SHIFT 6
+ u8 flags1;
+#define MSTORM_FCOE_CONN_AG_CTX_CF0EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_CF0EN_SHIFT 0
+#define MSTORM_FCOE_CONN_AG_CTX_CF1EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_CF1EN_SHIFT 1
+#define MSTORM_FCOE_CONN_AG_CTX_CF2EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_CF2EN_SHIFT 2
+#define MSTORM_FCOE_CONN_AG_CTX_RULE0EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_RULE0EN_SHIFT 3
+#define MSTORM_FCOE_CONN_AG_CTX_RULE1EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_RULE1EN_SHIFT 4
+#define MSTORM_FCOE_CONN_AG_CTX_RULE2EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_RULE2EN_SHIFT 5
+#define MSTORM_FCOE_CONN_AG_CTX_RULE3EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_RULE3EN_SHIFT 6
+#define MSTORM_FCOE_CONN_AG_CTX_RULE4EN_MASK 0x1
+#define MSTORM_FCOE_CONN_AG_CTX_RULE4EN_SHIFT 7
+ __le16 word0;
+ __le16 word1;
+ __le32 reg0;
+ __le32 reg1;
+};
+
+struct fcoe_mstorm_fcoe_conn_st_ctx_fp {
+ __le16 xfer_prod;
+ __le16 reserved1;
+ u8 protection_info;
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_SUPPORT_PROTECTION_MASK 0x1
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_SUPPORT_PROTECTION_SHIFT 0
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_VALID_MASK 0x1
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_VALID_SHIFT 1
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_RESERVED0_MASK 0x3F
+#define FCOE_MSTORM_FCOE_CONN_ST_CTX_FP_RESERVED0_SHIFT 2
+ u8 q_relative_offset;
+ u8 reserved2[2];
+};
+
+struct fcoe_mstorm_fcoe_conn_st_ctx_non_fp {
+ __le16 conn_id;
+ __le16 stat_ram_addr;
+ __le16 num_pages_in_pbl;
+ u8 ptu_log_page_size;
+ u8 log_page_size;
+ __le16 unsolicited_cq_count;
+ __le16 cmdq_count;
+ u8 bdq_resource_id;
+ u8 reserved0[3];
+ struct regpair xferq_pbl_addr;
+ struct regpair reserved1;
+ struct regpair reserved2[3];
+};
+
+struct mstorm_fcoe_conn_st_ctx {
+ struct fcoe_mstorm_fcoe_conn_st_ctx_fp fp;
+ struct fcoe_mstorm_fcoe_conn_st_ctx_non_fp non_fp;
+};
+
+struct fcoe_conn_context {
+ struct ystorm_fcoe_conn_st_ctx ystorm_st_context;
+ struct pstorm_fcoe_conn_st_ctx pstorm_st_context;
+ struct regpair pstorm_st_padding[2];
+ struct xstorm_fcoe_conn_st_ctx xstorm_st_context;
+ struct xstorm_fcoe_conn_ag_ctx xstorm_ag_context;
+ struct regpair xstorm_ag_padding[6];
+ struct ustorm_fcoe_conn_st_ctx ustorm_st_context;
+ struct regpair ustorm_st_padding[2];
+ struct tstorm_fcoe_conn_ag_ctx tstorm_ag_context;
+ struct regpair tstorm_ag_padding[2];
+ struct timers_context timer_context;
+ struct ustorm_fcoe_conn_ag_ctx ustorm_ag_context;
+ struct tstorm_fcoe_conn_st_ctx tstorm_st_context;
+ struct mstorm_fcoe_conn_ag_ctx mstorm_ag_context;
+ struct mstorm_fcoe_conn_st_ctx mstorm_st_context;
+};
+
+struct fcoe_conn_offload_ramrod_params {
+ struct fcoe_conn_offload_ramrod_data offload_ramrod_data;
+};
+
+struct fcoe_conn_terminate_ramrod_params {
+ struct fcoe_conn_terminate_ramrod_data terminate_ramrod_data;
+};
+
+enum fcoe_event_type {
+ FCOE_EVENT_INIT_FUNC,
+ FCOE_EVENT_DESTROY_FUNC,
+ FCOE_EVENT_STAT_FUNC,
+ FCOE_EVENT_OFFLOAD_CONN,
+ FCOE_EVENT_TERMINATE_CONN,
+ FCOE_EVENT_ERROR,
+ MAX_FCOE_EVENT_TYPE
+};
+
+struct fcoe_init_ramrod_params {
+ struct fcoe_init_func_ramrod_data init_ramrod_data;
+};
+
+enum fcoe_ramrod_cmd_id {
+ FCOE_RAMROD_CMD_ID_INIT_FUNC,
+ FCOE_RAMROD_CMD_ID_DESTROY_FUNC,
+ FCOE_RAMROD_CMD_ID_STAT_FUNC,
+ FCOE_RAMROD_CMD_ID_OFFLOAD_CONN,
+ FCOE_RAMROD_CMD_ID_TERMINATE_CONN,
+ MAX_FCOE_RAMROD_CMD_ID
+};
+
+struct fcoe_stat_ramrod_params {
+ struct fcoe_stat_ramrod_data stat_ramrod_data;
+};
+
+struct ystorm_fcoe_conn_ag_ctx {
+ u8 byte0;
+ u8 byte1;
+ u8 flags0;
+#define YSTORM_FCOE_CONN_AG_CTX_BIT0_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_BIT0_SHIFT 0
+#define YSTORM_FCOE_CONN_AG_CTX_BIT1_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_BIT1_SHIFT 1
+#define YSTORM_FCOE_CONN_AG_CTX_CF0_MASK 0x3
+#define YSTORM_FCOE_CONN_AG_CTX_CF0_SHIFT 2
+#define YSTORM_FCOE_CONN_AG_CTX_CF1_MASK 0x3
+#define YSTORM_FCOE_CONN_AG_CTX_CF1_SHIFT 4
+#define YSTORM_FCOE_CONN_AG_CTX_CF2_MASK 0x3
+#define YSTORM_FCOE_CONN_AG_CTX_CF2_SHIFT 6
+ u8 flags1;
+#define YSTORM_FCOE_CONN_AG_CTX_CF0EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_CF0EN_SHIFT 0
+#define YSTORM_FCOE_CONN_AG_CTX_CF1EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_CF1EN_SHIFT 1
+#define YSTORM_FCOE_CONN_AG_CTX_CF2EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_CF2EN_SHIFT 2
+#define YSTORM_FCOE_CONN_AG_CTX_RULE0EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_RULE0EN_SHIFT 3
+#define YSTORM_FCOE_CONN_AG_CTX_RULE1EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_RULE1EN_SHIFT 4
+#define YSTORM_FCOE_CONN_AG_CTX_RULE2EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_RULE2EN_SHIFT 5
+#define YSTORM_FCOE_CONN_AG_CTX_RULE3EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_RULE3EN_SHIFT 6
+#define YSTORM_FCOE_CONN_AG_CTX_RULE4EN_MASK 0x1
+#define YSTORM_FCOE_CONN_AG_CTX_RULE4EN_SHIFT 7
+ u8 byte2;
+ u8 byte3;
+ __le16 word0;
+ __le32 reg0;
+ __le32 reg1;
+ __le16 word1;
+ __le16 word2;
+ __le16 word3;
+ __le16 word4;
+ __le32 reg2;
+ __le32 reg3;
+};
+
struct ystorm_iscsi_conn_st_ctx {
__le32 reserved[4];
};
@@ -8435,6 +9204,7 @@ struct public_func {
#define FUNC_MF_CFG_PROTOCOL_SHIFT 4
#define FUNC_MF_CFG_PROTOCOL_ETHERNET 0x00000000
#define FUNC_MF_CFG_PROTOCOL_ISCSI 0x00000010
+#define FUNC_MF_CFG_PROTOCOL_FCOE 0x00000020
#define FUNC_MF_CFG_PROTOCOL_ROCE 0x00000030
#define FUNC_MF_CFG_PROTOCOL_MAX 0x00000030
@@ -8529,6 +9299,13 @@ struct lan_stats_stc {
u32 rserved;
};
+struct fcoe_stats_stc {
+ u64 rx_pkts;
+ u64 tx_pkts;
+ u32 fcs_err;
+ u32 login_failure;
+};
+
struct ocbb_data_stc {
u32 ocbb_host_addr;
u32 ocsd_host_addr;
@@ -8602,6 +9379,7 @@ struct resource_info {
struct drv_version_stc drv_version;
struct lan_stats_stc lan_stats;
+ struct fcoe_stats_stc fcoe_stats;
struct ocbb_data_stc ocbb_info;
struct temperature_status_stc temp_info;
struct resource_info resource;
@@ -8905,6 +9683,7 @@ struct nvm_cfg1_glob {
u32 misc_sig;
u32 device_capabilities;
#define NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ETHERNET 0x1
+#define NVM_CFG1_GLOB_DEVICE_CAPABILITIES_FCOE 0x2
#define NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ISCSI 0x4
#define NVM_CFG1_GLOB_DEVICE_CAPABILITIES_ROCE 0x8
u32 power_dissipated;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_hw.c b/drivers/net/ethernet/qlogic/qed/qed_hw.c
index 1f60651..899cad7 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_hw.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_hw.c
@@ -841,6 +841,9 @@ u16 qed_get_qm_pq(struct qed_hwfn *p_hwfn,
if (pq_id > p_hwfn->qm_info.num_pf_rls)
pq_id = p_hwfn->qm_info.offload_pq;
break;
+ case PROTOCOLID_FCOE:
+ pq_id = p_hwfn->qm_info.offload_pq;
+ break;
default:
pq_id = 0;
}
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
index 02c5d47..9a0b9af 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c
@@ -1130,6 +1130,9 @@ static int qed_sp_ll2_tx_queue_start(struct qed_hwfn *p_hwfn,
p_ramrod->qm_pq_id = cpu_to_le16(pq_id);
switch (conn_type) {
+ case QED_LL2_TYPE_FCOE:
+ p_ramrod->conn_type = PROTOCOLID_FCOE;
+ break;
case QED_LL2_TYPE_ISCSI:
case QED_LL2_TYPE_ISCSI_OOO:
p_ramrod->conn_type = PROTOCOLID_ISCSI;
@@ -1458,6 +1461,15 @@ int qed_ll2_establish_connection(struct qed_hwfn *p_hwfn, u8 connection_handle)
qed_ll2_establish_connection_ooo(p_hwfn, p_ll2_conn);
+ if (p_ll2_conn->conn.conn_type == QED_LL2_TYPE_FCOE) {
+ qed_llh_add_protocol_filter(p_hwfn, p_hwfn->p_main_ptt,
+ 0x8906, 0,
+ QED_LLH_FILTER_ETHERTYPE);
+ qed_llh_add_protocol_filter(p_hwfn, p_hwfn->p_main_ptt,
+ 0x8914, 0,
+ QED_LLH_FILTER_ETHERTYPE);
+ }
+
return rc;
}
@@ -1831,6 +1843,15 @@ int qed_ll2_terminate_connection(struct qed_hwfn *p_hwfn, u8 connection_handle)
if (p_ll2_conn->conn.conn_type == QED_LL2_TYPE_ISCSI_OOO)
qed_ooo_release_all_isles(p_hwfn, p_hwfn->p_ooo_info);
+ if (p_ll2_conn->conn.conn_type == QED_LL2_TYPE_FCOE) {
+ qed_llh_remove_protocol_filter(p_hwfn, p_hwfn->p_main_ptt,
+ 0x8906, 0,
+ QED_LLH_FILTER_ETHERTYPE);
+ qed_llh_remove_protocol_filter(p_hwfn, p_hwfn->p_main_ptt,
+ 0x8914, 0,
+ QED_LLH_FILTER_ETHERTYPE);
+ }
+
return rc;
}
@@ -2039,6 +2060,10 @@ static int qed_ll2_start(struct qed_dev *cdev, struct qed_ll2_params *params)
}
switch (QED_LEADING_HWFN(cdev)->hw_info.personality) {
+ case QED_PCI_FCOE:
+ conn_type = QED_LL2_TYPE_FCOE;
+ gsi_enable = 0;
+ break;
case QED_PCI_ISCSI:
conn_type = QED_LL2_TYPE_ISCSI;
gsi_enable = 0;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.h b/drivers/net/ethernet/qlogic/qed/qed_ll2.h
index db3e4fc..31a4090 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_ll2.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.h
@@ -54,7 +54,7 @@ enum qed_ll2_roce_flavor_type {
};
enum qed_ll2_conn_type {
- QED_LL2_TYPE_RESERVED,
+ QED_LL2_TYPE_FCOE,
QED_LL2_TYPE_ISCSI,
QED_LL2_TYPE_TEST,
QED_LL2_TYPE_ISCSI_OOO,
diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c
index 93eee83..e9c26d7 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_main.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_main.c
@@ -53,9 +53,11 @@
#include "qed_sp.h"
#include "qed_dev_api.h"
#include "qed_ll2.h"
+#include "qed_fcoe.h"
#include "qed_mcp.h"
#include "qed_hw.h"
#include "qed_selftest.h"
+#include "qed_debug.h"
#define QED_ROCE_QPS (8192)
#define QED_ROCE_DPIS (8)
@@ -1588,6 +1590,8 @@ static int qed_update_mtu(struct qed_dev *cdev, u16 mtu)
.sb_release = &qed_sb_release,
.simd_handler_config = &qed_simd_handler_config,
.simd_handler_clean = &qed_simd_handler_clean,
+ .dbg_grc = &qed_dbg_grc,
+ .dbg_grc_size = &qed_dbg_grc_size,
.can_link_change = &qed_can_link_change,
.set_link = &qed_set_link,
.get_link = &qed_get_current_link,
@@ -1621,6 +1625,9 @@ void qed_get_protocol_stats(struct qed_dev *cdev,
stats->lan_stats.ucast_tx_pkts = eth_stats.tx_ucast_pkts;
stats->lan_stats.fcs_err = -1;
break;
+ case QED_MCP_FCOE_STATS:
+ qed_get_protocol_stats_fcoe(cdev, &stats->fcoe_stats);
+ break;
default:
DP_ERR(cdev, "Invalid protocol type = %d\n", type);
return;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.c b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
index c8a8775..7624a38 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.c
@@ -1130,6 +1130,9 @@ int qed_mcp_get_media_type(struct qed_dev *cdev, u32 *p_media_type)
case FUNC_MF_CFG_PROTOCOL_ISCSI:
*p_proto = QED_PCI_ISCSI;
break;
+ case FUNC_MF_CFG_PROTOCOL_FCOE:
+ *p_proto = QED_PCI_FCOE;
+ break;
case FUNC_MF_CFG_PROTOCOL_ROCE:
DP_NOTICE(p_hwfn, "RoCE personality is not a valid value!\n");
/* Fallthrough */
diff --git a/drivers/net/ethernet/qlogic/qed/qed_mcp.h b/drivers/net/ethernet/qlogic/qed/qed_mcp.h
index 363dce0..0792224 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_mcp.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_mcp.h
@@ -37,6 +37,7 @@
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
+#include <linux/qed/qed_fcoe_if.h>
#include "qed_hsi.h"
struct qed_mcp_link_speed_params {
diff --git a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
index b6722c6..cdd6700 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_reg_addr.h
@@ -110,6 +110,8 @@
0x1e80000UL
#define NIG_REG_RX_LLH_BRB_GATE_DNTFWD_PERPF \
0x5011f4UL
+#define PRS_REG_SEARCH_RESP_INITIATOR_TYPE \
+ 0x1f0164UL
#define PRS_REG_SEARCH_TCP \
0x1f0400UL
#define PRS_REG_SEARCH_UDP \
@@ -120,6 +122,12 @@
0x1f040cUL
#define PRS_REG_SEARCH_OPENFLOW \
0x1f0434UL
+#define PRS_REG_SEARCH_TAG1 \
+ 0x1f0444UL
+#define PRS_REG_PKT_LEN_STAT_TAGS_NOT_COUNTED_FIRST \
+ 0x1f0a0cUL
+#define PRS_REG_SEARCH_TCP_FIRST_FRAG \
+ 0x1f0410UL
#define TM_REG_PF_ENABLE_CONN \
0x2c043cUL
#define TM_REG_PF_ENABLE_TASK \
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sp.h b/drivers/net/ethernet/qlogic/qed/qed_sp.h
index 0438829..30393ff 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sp.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_sp.h
@@ -109,6 +109,10 @@ int qed_eth_cqe_completion(struct qed_hwfn *p_hwfn,
struct rdma_srq_destroy_ramrod_data rdma_destroy_srq;
struct rdma_srq_modify_ramrod_data rdma_modify_srq;
struct roce_init_func_ramrod_data roce_init_func;
+ struct fcoe_init_ramrod_params fcoe_init;
+ struct fcoe_conn_offload_ramrod_params fcoe_conn_ofld;
+ struct fcoe_conn_terminate_ramrod_params fcoe_conn_terminate;
+ struct fcoe_stat_ramrod_params fcoe_stat;
struct iscsi_slow_path_hdr iscsi_empty;
struct iscsi_init_ramrod_params iscsi_init;
diff --git a/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c b/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c
index 097a729..6fb80f9 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_sp_commands.c
@@ -386,6 +386,9 @@ int qed_sp_pf_start(struct qed_hwfn *p_hwfn,
case QED_PCI_ETH:
p_ramrod->personality = PERSONALITY_ETH;
break;
+ case QED_PCI_FCOE:
+ p_ramrod->personality = PERSONALITY_FCOE;
+ break;
case QED_PCI_ISCSI:
p_ramrod->personality = PERSONALITY_ISCSI;
break;
diff --git a/include/linux/qed/common_hsi.h b/include/linux/qed/common_hsi.h
index c33080b..52966b9 100644
--- a/include/linux/qed/common_hsi.h
+++ b/include/linux/qed/common_hsi.h
@@ -62,6 +62,7 @@
#define COMMON_QUEUE_ENTRY_MAX_BYTE_SIZE 64
#define ISCSI_CDU_TASK_SEG_TYPE 0
+#define FCOE_CDU_TASK_SEG_TYPE 0
#define RDMA_CDU_TASK_SEG_TYPE 1
#define FW_ASSERT_GENERAL_ATTN_IDX 32
@@ -205,6 +206,9 @@
#define DQ_XCM_ETH_TX_BD_CONS_CMD DQ_XCM_AGG_VAL_SEL_WORD3
#define DQ_XCM_ETH_TX_BD_PROD_CMD DQ_XCM_AGG_VAL_SEL_WORD4
#define DQ_XCM_ETH_GO_TO_BD_CONS_CMD DQ_XCM_AGG_VAL_SEL_WORD5
+#define DQ_XCM_FCOE_SQ_CONS_CMD DQ_XCM_AGG_VAL_SEL_WORD3
+#define DQ_XCM_FCOE_SQ_PROD_CMD DQ_XCM_AGG_VAL_SEL_WORD4
+#define DQ_XCM_FCOE_X_FERQ_PROD_CMD DQ_XCM_AGG_VAL_SEL_WORD5
#define DQ_XCM_ISCSI_SQ_CONS_CMD DQ_XCM_AGG_VAL_SEL_WORD3
#define DQ_XCM_ISCSI_SQ_PROD_CMD DQ_XCM_AGG_VAL_SEL_WORD4
#define DQ_XCM_ISCSI_MORE_TO_SEND_SEQ_CMD DQ_XCM_AGG_VAL_SEL_REG3
@@ -261,6 +265,7 @@
#define DQ_XCM_ETH_TERMINATE_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF19)
#define DQ_XCM_ETH_SLOW_PATH_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF22)
#define DQ_XCM_ETH_TPH_EN_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF23)
+#define DQ_XCM_FCOE_SLOW_PATH_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF22)
#define DQ_XCM_ISCSI_DQ_FLUSH_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF19)
#define DQ_XCM_ISCSI_SLOW_PATH_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF22)
#define DQ_XCM_ISCSI_PROC_ONLY_CLEANUP_CMD BIT(DQ_XCM_AGG_FLG_SHIFT_CF23)
@@ -291,6 +296,9 @@
#define DQ_TCM_AGG_FLG_SHIFT_CF6 6
#define DQ_TCM_AGG_FLG_SHIFT_CF7 7
/* TCM agg counter flag selection (FW) */
+#define DQ_TCM_FCOE_FLUSH_Q0_CMD BIT(DQ_TCM_AGG_FLG_SHIFT_CF1)
+#define DQ_TCM_FCOE_DUMMY_TIMER_CMD BIT(DQ_TCM_AGG_FLG_SHIFT_CF2)
+#define DQ_TCM_FCOE_TIMER_STOP_ALL_CMD BIT(DQ_TCM_AGG_FLG_SHIFT_CF3)
#define DQ_TCM_ISCSI_FLUSH_Q0_CMD BIT(DQ_TCM_AGG_FLG_SHIFT_CF1)
#define DQ_TCM_ISCSI_TIMER_STOP_ALL_CMD BIT(DQ_TCM_AGG_FLG_SHIFT_CF3)
@@ -728,7 +736,7 @@ enum mf_mode {
/* Per-protocol connection types */
enum protocol_type {
PROTOCOLID_ISCSI,
- PROTOCOLID_RESERVED2,
+ PROTOCOLID_FCOE,
PROTOCOLID_ROCE,
PROTOCOLID_CORE,
PROTOCOLID_ETH,
diff --git a/include/linux/qed/fcoe_common.h b/include/linux/qed/fcoe_common.h
new file mode 100644
index 0000000..2e417a4
--- /dev/null
+++ b/include/linux/qed/fcoe_common.h
@@ -0,0 +1,715 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#ifndef __FCOE_COMMON__
+#define __FCOE_COMMON__
+/*********************/
+/* FCOE FW CONSTANTS */
+/*********************/
+
+#define FC_ABTS_REPLY_MAX_PAYLOAD_LEN 12
+#define FCOE_MAX_SIZE_FCP_DATA_SUPER (8600)
+
+struct fcoe_abts_pkt {
+ __le32 abts_rsp_fc_payload_lo;
+ __le16 abts_rsp_rx_id;
+ u8 abts_rsp_rctl;
+ u8 reserved2;
+};
+
+/* FCoE additional WQE (Sq/XferQ) information */
+union fcoe_additional_info_union {
+ __le32 previous_tid;
+ __le32 parent_tid;
+ __le32 burst_length;
+ __le32 seq_rec_updated_offset;
+};
+
+struct fcoe_exp_ro {
+ __le32 data_offset;
+ __le32 reserved;
+};
+
+union fcoe_cleanup_addr_exp_ro_union {
+ struct regpair abts_rsp_fc_payload_hi;
+ struct fcoe_exp_ro exp_ro;
+};
+
+/* FCoE Ramrod Command IDs */
+enum fcoe_completion_status {
+ FCOE_COMPLETION_STATUS_SUCCESS,
+ FCOE_COMPLETION_STATUS_FCOE_VER_ERR,
+ FCOE_COMPLETION_STATUS_SRC_MAC_ADD_ARR_ERR,
+ MAX_FCOE_COMPLETION_STATUS
+};
+
+struct fc_addr_nw {
+ u8 addr_lo;
+ u8 addr_mid;
+ u8 addr_hi;
+};
+
+/* FCoE connection offload */
+struct fcoe_conn_offload_ramrod_data {
+ struct regpair sq_pbl_addr;
+ struct regpair sq_curr_page_addr;
+ struct regpair sq_next_page_addr;
+ struct regpair xferq_pbl_addr;
+ struct regpair xferq_curr_page_addr;
+ struct regpair xferq_next_page_addr;
+ struct regpair respq_pbl_addr;
+ struct regpair respq_curr_page_addr;
+ struct regpair respq_next_page_addr;
+ __le16 dst_mac_addr_lo;
+ __le16 dst_mac_addr_mid;
+ __le16 dst_mac_addr_hi;
+ __le16 src_mac_addr_lo;
+ __le16 src_mac_addr_mid;
+ __le16 src_mac_addr_hi;
+ __le16 tx_max_fc_pay_len;
+ __le16 e_d_tov_timer_val;
+ __le16 rx_max_fc_pay_len;
+ __le16 vlan_tag;
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_VLAN_ID_MASK 0xFFF
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_VLAN_ID_SHIFT 0
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_CFI_MASK 0x1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_CFI_SHIFT 12
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_PRIORITY_MASK 0x7
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_PRIORITY_SHIFT 13
+ __le16 physical_q0;
+ __le16 rec_rr_tov_timer_val;
+ struct fc_addr_nw s_id;
+ u8 max_conc_seqs_c3;
+ struct fc_addr_nw d_id;
+ u8 flags;
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONT_INCR_SEQ_CNT_MASK 0x1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONT_INCR_SEQ_CNT_SHIFT 0
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONF_REQ_MASK 0x1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONF_REQ_SHIFT 1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_REC_VALID_MASK 0x1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_REC_VALID_SHIFT 2
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_MASK 0x1
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_SHIFT 3
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_MODE_MASK 0x3
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_MODE_SHIFT 4
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_RESERVED0_MASK 0x3
+#define FCOE_CONN_OFFLOAD_RAMROD_DATA_RESERVED0_SHIFT 6
+ __le16 conn_id;
+ u8 def_q_idx;
+ u8 reserved[5];
+};
+
+/* FCoE terminate connection request */
+struct fcoe_conn_terminate_ramrod_data {
+ struct regpair terminate_params_addr;
+};
+
+struct fcoe_fast_sgl_ctx {
+ struct regpair sgl_start_addr;
+ __le32 sgl_byte_offset;
+ __le16 task_reuse_cnt;
+ __le16 init_offset_in_first_sge;
+};
+
+struct fcoe_slow_sgl_ctx {
+ struct regpair base_sgl_addr;
+ __le16 curr_sge_off;
+ __le16 remainder_num_sges;
+ __le16 curr_sgl_index;
+ __le16 reserved;
+};
+
+struct fcoe_sge {
+ struct regpair sge_addr;
+ __le16 size;
+ __le16 reserved0;
+ u8 reserved1[3];
+ u8 is_valid_sge;
+};
+
+union fcoe_data_desc_ctx {
+ struct fcoe_fast_sgl_ctx fast;
+ struct fcoe_slow_sgl_ctx slow;
+ struct fcoe_sge single_sge;
+};
+
+union fcoe_dix_desc_ctx {
+ struct fcoe_slow_sgl_ctx dix_sgl;
+ struct fcoe_sge cached_dix_sge;
+};
+
+struct fcoe_fcp_cmd_payload {
+ __le32 opaque[8];
+};
+
+struct fcoe_fcp_rsp_payload {
+ __le32 opaque[6];
+};
+
+struct fcoe_fcp_xfer_payload {
+ __le32 opaque[3];
+};
+
+/* FCoE firmware function init */
+struct fcoe_init_func_ramrod_data {
+ struct scsi_init_func_params func_params;
+ struct scsi_init_func_queues q_params;
+ __le16 mtu;
+ __le16 sq_num_pages_in_pbl;
+ __le32 reserved;
+};
+
+/* FCoE: Mode of the connection: Target or Initiator or both */
+enum fcoe_mode_type {
+ FCOE_INITIATOR_MODE = 0x0,
+ FCOE_TARGET_MODE = 0x1,
+ FCOE_BOTH_OR_NOT_CHOSEN = 0x3,
+ MAX_FCOE_MODE_TYPE
+};
+
+struct fcoe_mstorm_fcoe_task_st_ctx_fp {
+ __le16 flags;
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_FP_RSRV0_MASK 0x7FFF
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_FP_RSRV0_SHIFT 0
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_FP_MP_INCLUDE_FC_HEADER_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_FP_MP_INCLUDE_FC_HEADER_SHIFT 15
+ __le16 difDataResidue;
+ __le16 parent_id;
+ __le16 single_sge_saved_offset;
+ __le32 data_2_trns_rem;
+ __le32 offset_in_io;
+ union fcoe_dix_desc_ctx dix_desc;
+ union fcoe_data_desc_ctx data_desc;
+};
+
+struct fcoe_mstorm_fcoe_task_st_ctx_non_fp {
+ __le16 flags;
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_HOST_INTERFACE_MASK 0x3
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_HOST_INTERFACE_SHIFT 0
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIF_TO_PEER_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIF_TO_PEER_SHIFT 2
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_VALIDATE_DIX_APP_TAG_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_VALIDATE_DIX_APP_TAG_SHIFT 3
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_INTERVAL_SIZE_LOG_MASK 0xF
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_INTERVAL_SIZE_LOG_SHIFT 4
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIX_BLOCK_SIZE_MASK 0x3
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIX_BLOCK_SIZE_SHIFT 8
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RESERVED_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RESERVED_SHIFT 10
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_HAS_FIRST_PACKET_ARRIVED_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_HAS_FIRST_PACKET_ARRIVED_SHIFT 11
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_VALIDATE_DIX_REF_TAG_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_VALIDATE_DIX_REF_TAG_SHIFT 12
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIX_CACHED_SGE_FLG_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIX_CACHED_SGE_FLG_SHIFT 13
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_OFFSET_IN_IO_VALID_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_OFFSET_IN_IO_VALID_SHIFT 14
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIF_SUPPORTED_MASK 0x1
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_DIF_SUPPORTED_SHIFT 15
+ u8 tx_rx_sgl_mode;
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_TX_SGL_MODE_MASK 0x7
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_TX_SGL_MODE_SHIFT 0
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RX_SGL_MODE_MASK 0x7
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RX_SGL_MODE_SHIFT 3
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RSRV1_MASK 0x3
+#define FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RSRV1_SHIFT 6
+ u8 rsrv2;
+ __le32 num_prm_zero_read;
+ struct regpair rsp_buf_addr;
+};
+
+struct fcoe_rx_stat {
+ struct regpair fcoe_rx_byte_cnt;
+ struct regpair fcoe_rx_data_pkt_cnt;
+ struct regpair fcoe_rx_xfer_pkt_cnt;
+ struct regpair fcoe_rx_other_pkt_cnt;
+ __le32 fcoe_silent_drop_pkt_cmdq_full_cnt;
+ __le32 fcoe_silent_drop_pkt_rq_full_cnt;
+ __le32 fcoe_silent_drop_pkt_crc_error_cnt;
+ __le32 fcoe_silent_drop_pkt_task_invalid_cnt;
+ __le32 fcoe_silent_drop_total_pkt_cnt;
+ __le32 rsrv;
+};
+
+enum fcoe_sgl_mode {
+ FCOE_SLOW_SGL,
+ FCOE_SINGLE_FAST_SGE,
+ FCOE_2_FAST_SGE,
+ FCOE_3_FAST_SGE,
+ FCOE_4_FAST_SGE,
+ FCOE_MUL_FAST_SGES,
+ MAX_FCOE_SGL_MODE
+};
+
+struct fcoe_stat_ramrod_data {
+ struct regpair stat_params_addr;
+};
+
+struct protection_info_ctx {
+ __le16 flags;
+#define PROTECTION_INFO_CTX_HOST_INTERFACE_MASK 0x3
+#define PROTECTION_INFO_CTX_HOST_INTERFACE_SHIFT 0
+#define PROTECTION_INFO_CTX_DIF_TO_PEER_MASK 0x1
+#define PROTECTION_INFO_CTX_DIF_TO_PEER_SHIFT 2
+#define PROTECTION_INFO_CTX_VALIDATE_DIX_APP_TAG_MASK 0x1
+#define PROTECTION_INFO_CTX_VALIDATE_DIX_APP_TAG_SHIFT 3
+#define PROTECTION_INFO_CTX_INTERVAL_SIZE_LOG_MASK 0xF
+#define PROTECTION_INFO_CTX_INTERVAL_SIZE_LOG_SHIFT 4
+#define PROTECTION_INFO_CTX_VALIDATE_DIX_REF_TAG_MASK 0x1
+#define PROTECTION_INFO_CTX_VALIDATE_DIX_REF_TAG_SHIFT 8
+#define PROTECTION_INFO_CTX_RESERVED0_MASK 0x7F
+#define PROTECTION_INFO_CTX_RESERVED0_SHIFT 9
+ u8 dix_block_size;
+ u8 dst_size;
+};
+
+union protection_info_union_ctx {
+ struct protection_info_ctx info;
+ __le32 value;
+};
+
+struct fcp_rsp_payload_padded {
+ struct fcoe_fcp_rsp_payload rsp_payload;
+ __le32 reserved[2];
+};
+
+struct fcp_xfer_payload_padded {
+ struct fcoe_fcp_xfer_payload xfer_payload;
+ __le32 reserved[5];
+};
+
+struct fcoe_tx_data_params {
+ __le32 data_offset;
+ __le32 offset_in_io;
+ u8 flags;
+#define FCOE_TX_DATA_PARAMS_OFFSET_IN_IO_VALID_MASK 0x1
+#define FCOE_TX_DATA_PARAMS_OFFSET_IN_IO_VALID_SHIFT 0
+#define FCOE_TX_DATA_PARAMS_DROP_DATA_MASK 0x1
+#define FCOE_TX_DATA_PARAMS_DROP_DATA_SHIFT 1
+#define FCOE_TX_DATA_PARAMS_AFTER_SEQ_REC_MASK 0x1
+#define FCOE_TX_DATA_PARAMS_AFTER_SEQ_REC_SHIFT 2
+#define FCOE_TX_DATA_PARAMS_RESERVED0_MASK 0x1F
+#define FCOE_TX_DATA_PARAMS_RESERVED0_SHIFT 3
+ u8 dif_residual;
+ __le16 seq_cnt;
+ __le16 single_sge_saved_offset;
+ __le16 next_dif_offset;
+ __le16 seq_id;
+ __le16 reserved3;
+};
+
+struct fcoe_tx_mid_path_params {
+ __le32 parameter;
+ u8 r_ctl;
+ u8 type;
+ u8 cs_ctl;
+ u8 df_ctl;
+ __le16 rx_id;
+ __le16 ox_id;
+};
+
+struct fcoe_tx_params {
+ struct fcoe_tx_data_params data;
+ struct fcoe_tx_mid_path_params mid_path;
+};
+
+union fcoe_tx_info_union_ctx {
+ struct fcoe_fcp_cmd_payload fcp_cmd_payload;
+ struct fcp_rsp_payload_padded fcp_rsp_payload;
+ struct fcp_xfer_payload_padded fcp_xfer_payload;
+ struct fcoe_tx_params tx_params;
+};
+
+struct ystorm_fcoe_task_st_ctx {
+ u8 task_type;
+ u8 sgl_mode;
+#define YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE_MASK 0x7
+#define YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE_SHIFT 0
+#define YSTORM_FCOE_TASK_ST_CTX_RSRV_MASK 0x1F
+#define YSTORM_FCOE_TASK_ST_CTX_RSRV_SHIFT 3
+ u8 cached_dix_sge;
+ u8 expect_first_xfer;
+ __le32 num_pbf_zero_write;
+ union protection_info_union_ctx protection_info_union;
+ __le32 data_2_trns_rem;
+ union fcoe_tx_info_union_ctx tx_info_union;
+ union fcoe_dix_desc_ctx dix_desc;
+ union fcoe_data_desc_ctx data_desc;
+ __le16 ox_id;
+ __le16 rx_id;
+ __le32 task_rety_identifier;
+ __le32 reserved1[2];
+};
+
+struct ystorm_fcoe_task_ag_ctx {
+ u8 byte0;
+ u8 byte1;
+ __le16 word0;
+ u8 flags0;
+#define YSTORM_FCOE_TASK_AG_CTX_NIBBLE0_MASK 0xF
+#define YSTORM_FCOE_TASK_AG_CTX_NIBBLE0_SHIFT 0
+#define YSTORM_FCOE_TASK_AG_CTX_BIT0_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_BIT0_SHIFT 4
+#define YSTORM_FCOE_TASK_AG_CTX_BIT1_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_BIT1_SHIFT 5
+#define YSTORM_FCOE_TASK_AG_CTX_BIT2_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_BIT2_SHIFT 6
+#define YSTORM_FCOE_TASK_AG_CTX_BIT3_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_BIT3_SHIFT 7
+ u8 flags1;
+#define YSTORM_FCOE_TASK_AG_CTX_CF0_MASK 0x3
+#define YSTORM_FCOE_TASK_AG_CTX_CF0_SHIFT 0
+#define YSTORM_FCOE_TASK_AG_CTX_CF1_MASK 0x3
+#define YSTORM_FCOE_TASK_AG_CTX_CF1_SHIFT 2
+#define YSTORM_FCOE_TASK_AG_CTX_CF2SPECIAL_MASK 0x3
+#define YSTORM_FCOE_TASK_AG_CTX_CF2SPECIAL_SHIFT 4
+#define YSTORM_FCOE_TASK_AG_CTX_CF0EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_CF0EN_SHIFT 6
+#define YSTORM_FCOE_TASK_AG_CTX_CF1EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_CF1EN_SHIFT 7
+ u8 flags2;
+#define YSTORM_FCOE_TASK_AG_CTX_BIT4_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_BIT4_SHIFT 0
+#define YSTORM_FCOE_TASK_AG_CTX_RULE0EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE0EN_SHIFT 1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE1EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE1EN_SHIFT 2
+#define YSTORM_FCOE_TASK_AG_CTX_RULE2EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE2EN_SHIFT 3
+#define YSTORM_FCOE_TASK_AG_CTX_RULE3EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE3EN_SHIFT 4
+#define YSTORM_FCOE_TASK_AG_CTX_RULE4EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE4EN_SHIFT 5
+#define YSTORM_FCOE_TASK_AG_CTX_RULE5EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE5EN_SHIFT 6
+#define YSTORM_FCOE_TASK_AG_CTX_RULE6EN_MASK 0x1
+#define YSTORM_FCOE_TASK_AG_CTX_RULE6EN_SHIFT 7
+ u8 byte2;
+ __le32 reg0;
+ u8 byte3;
+ u8 byte4;
+ __le16 rx_id;
+ __le16 word2;
+ __le16 word3;
+ __le16 word4;
+ __le16 word5;
+ __le32 reg1;
+ __le32 reg2;
+};
+
+struct tstorm_fcoe_task_ag_ctx {
+ u8 reserved;
+ u8 byte1;
+ __le16 icid;
+ u8 flags0;
+#define TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF
+#define TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
+#define TSTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
+#define TSTORM_FCOE_TASK_AG_CTX_BIT1_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_BIT1_SHIFT 5
+#define TSTORM_FCOE_TASK_AG_CTX_WAIT_ABTS_RSP_F_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_WAIT_ABTS_RSP_F_SHIFT 6
+#define TSTORM_FCOE_TASK_AG_CTX_VALID_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_VALID_SHIFT 7
+ u8 flags1;
+#define TSTORM_FCOE_TASK_AG_CTX_FALSE_RR_TOV_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_FALSE_RR_TOV_SHIFT 0
+#define TSTORM_FCOE_TASK_AG_CTX_BIT5_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_BIT5_SHIFT 1
+#define TSTORM_FCOE_TASK_AG_CTX_REC_RR_TOV_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_REC_RR_TOV_CF_SHIFT 2
+#define TSTORM_FCOE_TASK_AG_CTX_ED_TOV_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_ED_TOV_CF_SHIFT 4
+#define TSTORM_FCOE_TASK_AG_CTX_CF2_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_CF2_SHIFT 6
+ u8 flags2;
+#define TSTORM_FCOE_TASK_AG_CTX_TIMER_STOP_ALL_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_TIMER_STOP_ALL_SHIFT 0
+#define TSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_SHIFT 2
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_INIT_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_INIT_CF_SHIFT 4
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_RECOVERY_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_RECOVERY_CF_SHIFT 6
+ u8 flags3;
+#define TSTORM_FCOE_TASK_AG_CTX_UNSOL_COMP_CF_MASK 0x3
+#define TSTORM_FCOE_TASK_AG_CTX_UNSOL_COMP_CF_SHIFT 0
+#define TSTORM_FCOE_TASK_AG_CTX_REC_RR_TOV_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_REC_RR_TOV_CF_EN_SHIFT 2
+#define TSTORM_FCOE_TASK_AG_CTX_ED_TOV_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_ED_TOV_CF_EN_SHIFT 3
+#define TSTORM_FCOE_TASK_AG_CTX_CF2EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_CF2EN_SHIFT 4
+#define TSTORM_FCOE_TASK_AG_CTX_TIMER_STOP_ALL_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_TIMER_STOP_ALL_EN_SHIFT 5
+#define TSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_EN_SHIFT 6
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_INIT_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_INIT_CF_EN_SHIFT 7
+ u8 flags4;
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_RECOVERY_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_SEQ_RECOVERY_CF_EN_SHIFT 0
+#define TSTORM_FCOE_TASK_AG_CTX_UNSOL_COMP_CF_EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_UNSOL_COMP_CF_EN_SHIFT 1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE0EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE0EN_SHIFT 2
+#define TSTORM_FCOE_TASK_AG_CTX_RULE1EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE1EN_SHIFT 3
+#define TSTORM_FCOE_TASK_AG_CTX_RULE2EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE2EN_SHIFT 4
+#define TSTORM_FCOE_TASK_AG_CTX_RULE3EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE3EN_SHIFT 5
+#define TSTORM_FCOE_TASK_AG_CTX_RULE4EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE4EN_SHIFT 6
+#define TSTORM_FCOE_TASK_AG_CTX_RULE5EN_MASK 0x1
+#define TSTORM_FCOE_TASK_AG_CTX_RULE5EN_SHIFT 7
+ u8 cleanup_state;
+ __le16 last_sent_tid;
+ __le32 rec_rr_tov_exp_timeout;
+ u8 byte3;
+ u8 byte4;
+ __le16 word2;
+ __le16 word3;
+ __le16 word4;
+ __le32 data_offset_end_of_seq;
+ __le32 data_offset_next;
+};
+
+struct fcoe_tstorm_fcoe_task_st_ctx_read_write {
+ union fcoe_cleanup_addr_exp_ro_union cleanup_addr_exp_ro_union;
+ __le16 flags;
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RX_SGL_MODE_MASK 0x7
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RX_SGL_MODE_SHIFT 0
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME_MASK 0x1
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME_SHIFT 3
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SEQ_ACTIVE_MASK 0x1
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SEQ_ACTIVE_SHIFT 4
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SEQ_TIMEOUT_MASK 0x1
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SEQ_TIMEOUT_SHIFT 5
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SINGLE_PKT_IN_EX_MASK 0x1
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_SINGLE_PKT_IN_EX_SHIFT 6
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_OOO_RX_SEQ_STAT_MASK 0x1
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_OOO_RX_SEQ_STAT_SHIFT 7
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_CQ_ADD_ADV_MASK 0x3
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_CQ_ADD_ADV_SHIFT 8
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RSRV1_MASK 0x3F
+#define FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RSRV1_SHIFT 10
+ __le16 seq_cnt;
+ u8 seq_id;
+ u8 ooo_rx_seq_id;
+ __le16 rx_id;
+ struct fcoe_abts_pkt abts_data;
+ __le32 e_d_tov_exp_timeout_val;
+ __le16 ooo_rx_seq_cnt;
+ __le16 reserved1;
+};
+
+struct fcoe_tstorm_fcoe_task_st_ctx_read_only {
+ u8 task_type;
+ u8 dev_type;
+ u8 conf_supported;
+ u8 glbl_q_num;
+ __le32 cid;
+ __le32 fcp_cmd_trns_size;
+ __le32 rsrv;
+};
+
+struct tstorm_fcoe_task_st_ctx {
+ struct fcoe_tstorm_fcoe_task_st_ctx_read_write read_write;
+ struct fcoe_tstorm_fcoe_task_st_ctx_read_only read_only;
+};
+
+struct mstorm_fcoe_task_ag_ctx {
+ u8 byte0;
+ u8 byte1;
+ __le16 icid;
+ u8 flags0;
+#define MSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF
+#define MSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
+#define MSTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
+#define MSTORM_FCOE_TASK_AG_CTX_CQE_PLACED_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_CQE_PLACED_SHIFT 5
+#define MSTORM_FCOE_TASK_AG_CTX_BIT2_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_BIT2_SHIFT 6
+#define MSTORM_FCOE_TASK_AG_CTX_BIT3_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_BIT3_SHIFT 7
+ u8 flags1;
+#define MSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_MASK 0x3
+#define MSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_SHIFT 0
+#define MSTORM_FCOE_TASK_AG_CTX_CF1_MASK 0x3
+#define MSTORM_FCOE_TASK_AG_CTX_CF1_SHIFT 2
+#define MSTORM_FCOE_TASK_AG_CTX_CF2_MASK 0x3
+#define MSTORM_FCOE_TASK_AG_CTX_CF2_SHIFT 4
+#define MSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_EX_CLEANUP_CF_EN_SHIFT 6
+#define MSTORM_FCOE_TASK_AG_CTX_CF1EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_CF1EN_SHIFT 7
+ u8 flags2;
+#define MSTORM_FCOE_TASK_AG_CTX_CF2EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_CF2EN_SHIFT 0
+#define MSTORM_FCOE_TASK_AG_CTX_RULE0EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE0EN_SHIFT 1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE1EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE1EN_SHIFT 2
+#define MSTORM_FCOE_TASK_AG_CTX_RULE2EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE2EN_SHIFT 3
+#define MSTORM_FCOE_TASK_AG_CTX_RULE3EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE3EN_SHIFT 4
+#define MSTORM_FCOE_TASK_AG_CTX_RULE4EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE4EN_SHIFT 5
+#define MSTORM_FCOE_TASK_AG_CTX_XFER_PLACEMENT_EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_XFER_PLACEMENT_EN_SHIFT 6
+#define MSTORM_FCOE_TASK_AG_CTX_RULE6EN_MASK 0x1
+#define MSTORM_FCOE_TASK_AG_CTX_RULE6EN_SHIFT 7
+ u8 cleanup_state;
+ __le32 received_bytes;
+ u8 byte3;
+ u8 glbl_q_num;
+ __le16 word1;
+ __le16 tid_to_xfer;
+ __le16 word3;
+ __le16 word4;
+ __le16 word5;
+ __le32 expected_bytes;
+ __le32 reg2;
+};
+
+struct mstorm_fcoe_task_st_ctx {
+ struct fcoe_mstorm_fcoe_task_st_ctx_non_fp non_fp;
+ struct fcoe_mstorm_fcoe_task_st_ctx_fp fp;
+};
+
+struct ustorm_fcoe_task_ag_ctx {
+ u8 reserved;
+ u8 byte1;
+ __le16 icid;
+ u8 flags0;
+#define USTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_MASK 0xF
+#define USTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE_SHIFT 0
+#define USTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_EXIST_IN_QM0_SHIFT 4
+#define USTORM_FCOE_TASK_AG_CTX_BIT1_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_BIT1_SHIFT 5
+#define USTORM_FCOE_TASK_AG_CTX_CF0_MASK 0x3
+#define USTORM_FCOE_TASK_AG_CTX_CF0_SHIFT 6
+ u8 flags1;
+#define USTORM_FCOE_TASK_AG_CTX_CF1_MASK 0x3
+#define USTORM_FCOE_TASK_AG_CTX_CF1_SHIFT 0
+#define USTORM_FCOE_TASK_AG_CTX_CF2_MASK 0x3
+#define USTORM_FCOE_TASK_AG_CTX_CF2_SHIFT 2
+#define USTORM_FCOE_TASK_AG_CTX_CF3_MASK 0x3
+#define USTORM_FCOE_TASK_AG_CTX_CF3_SHIFT 4
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_CF_MASK 0x3
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_CF_SHIFT 6
+ u8 flags2;
+#define USTORM_FCOE_TASK_AG_CTX_CF0EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_CF0EN_SHIFT 0
+#define USTORM_FCOE_TASK_AG_CTX_CF1EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_CF1EN_SHIFT 1
+#define USTORM_FCOE_TASK_AG_CTX_CF2EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_CF2EN_SHIFT 2
+#define USTORM_FCOE_TASK_AG_CTX_CF3EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_CF3EN_SHIFT 3
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_CF_EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_CF_EN_SHIFT 4
+#define USTORM_FCOE_TASK_AG_CTX_RULE0EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE0EN_SHIFT 5
+#define USTORM_FCOE_TASK_AG_CTX_RULE1EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE1EN_SHIFT 6
+#define USTORM_FCOE_TASK_AG_CTX_RULE2EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE2EN_SHIFT 7
+ u8 flags3;
+#define USTORM_FCOE_TASK_AG_CTX_RULE3EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE3EN_SHIFT 0
+#define USTORM_FCOE_TASK_AG_CTX_RULE4EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE4EN_SHIFT 1
+#define USTORM_FCOE_TASK_AG_CTX_RULE5EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE5EN_SHIFT 2
+#define USTORM_FCOE_TASK_AG_CTX_RULE6EN_MASK 0x1
+#define USTORM_FCOE_TASK_AG_CTX_RULE6EN_SHIFT 3
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_TYPE_MASK 0xF
+#define USTORM_FCOE_TASK_AG_CTX_DIF_ERROR_TYPE_SHIFT 4
+ __le32 dif_err_intervals;
+ __le32 dif_error_1st_interval;
+ __le32 global_cq_num;
+ __le32 reg3;
+ __le32 reg4;
+ __le32 reg5;
+};
+
+struct fcoe_task_context {
+ struct ystorm_fcoe_task_st_ctx ystorm_st_context;
+ struct tdif_task_context tdif_context;
+ struct ystorm_fcoe_task_ag_ctx ystorm_ag_context;
+ struct tstorm_fcoe_task_ag_ctx tstorm_ag_context;
+ struct timers_context timer_context;
+ struct tstorm_fcoe_task_st_ctx tstorm_st_context;
+ struct regpair tstorm_st_padding[2];
+ struct mstorm_fcoe_task_ag_ctx mstorm_ag_context;
+ struct mstorm_fcoe_task_st_ctx mstorm_st_context;
+ struct ustorm_fcoe_task_ag_ctx ustorm_ag_context;
+ struct rdif_task_context rdif_context;
+};
+
+struct fcoe_tx_stat {
+ struct regpair fcoe_tx_byte_cnt;
+ struct regpair fcoe_tx_data_pkt_cnt;
+ struct regpair fcoe_tx_xfer_pkt_cnt;
+ struct regpair fcoe_tx_other_pkt_cnt;
+};
+
+struct fcoe_wqe {
+ __le16 task_id;
+ __le16 flags;
+#define FCOE_WQE_REQ_TYPE_MASK 0xF
+#define FCOE_WQE_REQ_TYPE_SHIFT 0
+#define FCOE_WQE_SGL_MODE_MASK 0x7
+#define FCOE_WQE_SGL_MODE_SHIFT 4
+#define FCOE_WQE_CONTINUATION_MASK 0x1
+#define FCOE_WQE_CONTINUATION_SHIFT 7
+#define FCOE_WQE_INVALIDATE_PTU_MASK 0x1
+#define FCOE_WQE_INVALIDATE_PTU_SHIFT 8
+#define FCOE_WQE_SUPER_IO_MASK 0x1
+#define FCOE_WQE_SUPER_IO_SHIFT 9
+#define FCOE_WQE_SEND_AUTO_RSP_MASK 0x1
+#define FCOE_WQE_SEND_AUTO_RSP_SHIFT 10
+#define FCOE_WQE_RESERVED0_MASK 0x1F
+#define FCOE_WQE_RESERVED0_SHIFT 11
+ union fcoe_additional_info_union additional_info_union;
+};
+
+struct xfrqe_prot_flags {
+ u8 flags;
+#define XFRQE_PROT_FLAGS_PROT_INTERVAL_SIZE_LOG_MASK 0xF
+#define XFRQE_PROT_FLAGS_PROT_INTERVAL_SIZE_LOG_SHIFT 0
+#define XFRQE_PROT_FLAGS_DIF_TO_PEER_MASK 0x1
+#define XFRQE_PROT_FLAGS_DIF_TO_PEER_SHIFT 4
+#define XFRQE_PROT_FLAGS_HOST_INTERFACE_MASK 0x3
+#define XFRQE_PROT_FLAGS_HOST_INTERFACE_SHIFT 5
+#define XFRQE_PROT_FLAGS_RESERVED_MASK 0x1
+#define XFRQE_PROT_FLAGS_RESERVED_SHIFT 7
+};
+
+struct fcoe_db_data {
+ u8 params;
+#define FCOE_DB_DATA_DEST_MASK 0x3
+#define FCOE_DB_DATA_DEST_SHIFT 0
+#define FCOE_DB_DATA_AGG_CMD_MASK 0x3
+#define FCOE_DB_DATA_AGG_CMD_SHIFT 2
+#define FCOE_DB_DATA_BYPASS_EN_MASK 0x1
+#define FCOE_DB_DATA_BYPASS_EN_SHIFT 4
+#define FCOE_DB_DATA_RESERVED_MASK 0x1
+#define FCOE_DB_DATA_RESERVED_SHIFT 5
+#define FCOE_DB_DATA_AGG_VAL_SEL_MASK 0x3
+#define FCOE_DB_DATA_AGG_VAL_SEL_SHIFT 6
+ u8 agg_flags;
+ __le16 sq_prod;
+};
+#endif /* __FCOE_COMMON__ */
diff --git a/include/linux/qed/qed_fcoe_if.h b/include/linux/qed/qed_fcoe_if.h
new file mode 100644
index 0000000..bd6bcb8
--- /dev/null
+++ b/include/linux/qed/qed_fcoe_if.h
@@ -0,0 +1,145 @@
+#ifndef _QED_FCOE_IF_H
+#define _QED_FCOE_IF_H
+#include <linux/types.h>
+#include <linux/qed/qed_if.h>
+struct qed_fcoe_stats {
+ u64 fcoe_rx_byte_cnt;
+ u64 fcoe_rx_data_pkt_cnt;
+ u64 fcoe_rx_xfer_pkt_cnt;
+ u64 fcoe_rx_other_pkt_cnt;
+ u32 fcoe_silent_drop_pkt_cmdq_full_cnt;
+ u32 fcoe_silent_drop_pkt_rq_full_cnt;
+ u32 fcoe_silent_drop_pkt_crc_error_cnt;
+ u32 fcoe_silent_drop_pkt_task_invalid_cnt;
+ u32 fcoe_silent_drop_total_pkt_cnt;
+
+ u64 fcoe_tx_byte_cnt;
+ u64 fcoe_tx_data_pkt_cnt;
+ u64 fcoe_tx_xfer_pkt_cnt;
+ u64 fcoe_tx_other_pkt_cnt;
+};
+
+struct qed_dev_fcoe_info {
+ struct qed_dev_info common;
+
+ void __iomem *primary_dbq_rq_addr;
+ void __iomem *secondary_bdq_rq_addr;
+};
+
+struct qed_fcoe_params_offload {
+ dma_addr_t sq_pbl_addr;
+ dma_addr_t sq_curr_page_addr;
+ dma_addr_t sq_next_page_addr;
+
+ u8 src_mac[ETH_ALEN];
+ u8 dst_mac[ETH_ALEN];
+
+ u16 tx_max_fc_pay_len;
+ u16 e_d_tov_timer_val;
+ u16 rec_tov_timer_val;
+ u16 rx_max_fc_pay_len;
+ u16 vlan_tag;
+
+ struct fc_addr_nw s_id;
+ u8 max_conc_seqs_c3;
+ struct fc_addr_nw d_id;
+ u8 flags;
+ u8 def_q_idx;
+};
+
+#define MAX_TID_BLOCKS_FCOE (512)
+struct qed_fcoe_tid {
+ u32 size; /* In bytes per task */
+ u32 num_tids_per_block;
+ u8 *blocks[MAX_TID_BLOCKS_FCOE];
+};
+
+struct qed_fcoe_cb_ops {
+ struct qed_common_cb_ops common;
+ u32 (*get_login_failures)(void *cookie);
+};
+
+void qed_fcoe_set_pf_params(struct qed_dev *cdev,
+ struct qed_fcoe_pf_params *params);
+
+/**
+ * struct qed_fcoe_ops - qed FCoE operations.
+ * @common: common operations pointer
+ * @fill_dev_info: fills FCoE specific information
+ * @param cdev
+ * @param info
+ * @return 0 on sucesss, otherwise error value.
+ * @register_ops: register FCoE operations
+ * @param cdev
+ * @param ops - specified using qed_iscsi_cb_ops
+ * @param cookie - driver private
+ * @ll2: light L2 operations pointer
+ * @start: fcoe in FW
+ * @param cdev
+ * @param tasks - qed will fill information about tasks
+ * return 0 on success, otherwise error value.
+ * @stop: stops fcoe in FW
+ * @param cdev
+ * return 0 on success, otherwise error value.
+ * @acquire_conn: acquire a new fcoe connection
+ * @param cdev
+ * @param handle - qed will fill handle that should be
+ * used henceforth as identifier of the
+ * connection.
+ * @param p_doorbell - qed will fill the address of the
+ * doorbell.
+ * return 0 on sucesss, otherwise error value.
+ * @release_conn: release a previously acquired fcoe connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * return 0 on success, otherwise error value.
+ * @offload_conn: configures an offloaded connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * @param conn_info - the configuration to use for the
+ * offload.
+ * return 0 on success, otherwise error value.
+ * @destroy_conn: stops an offloaded connection
+ * @param cdev
+ * @param handle - the connection handle.
+ * @param terminate_params
+ * return 0 on success, otherwise error value.
+ * @get_stats: gets FCoE related statistics
+ * @param cdev
+ * @param stats - pointer to struck that would be filled
+ * we stats
+ * return 0 on success, error otherwise.
+ */
+struct qed_fcoe_ops {
+ const struct qed_common_ops *common;
+
+ int (*fill_dev_info)(struct qed_dev *cdev,
+ struct qed_dev_fcoe_info *info);
+
+ void (*register_ops)(struct qed_dev *cdev,
+ struct qed_fcoe_cb_ops *ops, void *cookie);
+
+ const struct qed_ll2_ops *ll2;
+
+ int (*start)(struct qed_dev *cdev, struct qed_fcoe_tid *tasks);
+
+ int (*stop)(struct qed_dev *cdev);
+
+ int (*acquire_conn)(struct qed_dev *cdev,
+ u32 *handle,
+ u32 *fw_cid, void __iomem **p_doorbell);
+
+ int (*release_conn)(struct qed_dev *cdev, u32 handle);
+
+ int (*offload_conn)(struct qed_dev *cdev,
+ u32 handle,
+ struct qed_fcoe_params_offload *conn_info);
+ int (*destroy_conn)(struct qed_dev *cdev,
+ u32 handle, dma_addr_t terminate_params);
+
+ int (*get_stats)(struct qed_dev *cdev, struct qed_fcoe_stats *stats);
+};
+
+const struct qed_fcoe_ops *qed_get_fcoe_ops(void);
+void qed_put_fcoe_ops(void);
+#endif
diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index d1576a2..fde56c4 100644
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -59,7 +59,6 @@ enum dcbx_protocol_type {
#define QED_ROCE_PROTOCOL_INDEX (3)
-#ifdef CONFIG_DCB
#define QED_LLDP_CHASSIS_ID_STAT_LEN 4
#define QED_LLDP_PORT_ID_STAT_LEN 4
#define QED_DCBX_MAX_APP_PROTOCOL 32
@@ -155,7 +154,6 @@ struct qed_dcbx_get {
struct qed_dcbx_remote_params remote;
struct qed_dcbx_admin_params local;
};
-#endif
enum qed_led_mode {
QED_LED_MODE_OFF,
@@ -182,6 +180,38 @@ struct qed_eth_pf_params {
u16 num_cons;
};
+struct qed_fcoe_pf_params {
+ /* The following parameters are used during protocol-init */
+ u64 glbl_q_params_addr;
+ u64 bdq_pbl_base_addr[2];
+
+ /* The following parameters are used during HW-init
+ * and these parameters need to be passed as arguments
+ * to update_pf_params routine invoked before slowpath start
+ */
+ u16 num_cons;
+ u16 num_tasks;
+
+ /* The following parameters are used during protocol-init */
+ u16 sq_num_pbl_pages;
+
+ u16 cq_num_entries;
+ u16 cmdq_num_entries;
+ u16 rq_buffer_log_size;
+ u16 mtu;
+ u16 dummy_icid;
+ u16 bdq_xoff_threshold[2];
+ u16 bdq_xon_threshold[2];
+ u16 rq_buffer_size;
+ u8 num_cqs; /* num of global CQs */
+ u8 log_page_size;
+ u8 gl_rq_pi;
+ u8 gl_cmd_pi;
+ u8 debug_mode;
+ u8 is_target;
+ u8 bdq_pbl_num_entries[2];
+};
+
/* Most of the the parameters below are described in the FW iSCSI / TCP HSI */
struct qed_iscsi_pf_params {
u64 glbl_q_params_addr;
@@ -245,6 +275,7 @@ struct qed_rdma_pf_params {
struct qed_pf_params {
struct qed_eth_pf_params eth_pf_params;
+ struct qed_fcoe_pf_params fcoe_pf_params;
struct qed_iscsi_pf_params iscsi_pf_params;
struct qed_rdma_pf_params rdma_pf_params;
};
@@ -305,6 +336,7 @@ enum qed_sb_type {
enum qed_protocol {
QED_PROTOCOL_ETH,
QED_PROTOCOL_ISCSI,
+ QED_PROTOCOL_FCOE,
};
enum qed_link_mode_bits {
@@ -391,6 +423,7 @@ struct qed_int_info {
struct qed_common_cb_ops {
void (*link_update)(void *dev,
struct qed_link_output *link);
+ void (*dcbx_aen)(void *dev, struct qed_dcbx_get *get, u32 mib_type);
};
struct qed_selftest_ops {
@@ -494,6 +527,10 @@ struct qed_common_ops {
void (*simd_handler_clean)(struct qed_dev *cdev,
int index);
+ int (*dbg_grc)(struct qed_dev *cdev,
+ void *buffer, u32 *num_dumped_bytes);
+
+ int (*dbg_grc_size)(struct qed_dev *cdev);
int (*dbg_all_data) (struct qed_dev *cdev, void *buffer);
--
1.8.5.6
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH V2 2/2] qedf: Add QLogic FastLinQ offload FCoE driver framework.
2017-01-25 20:33 ` Dupuis, Chad
@ 2017-01-25 20:33 ` Dupuis, Chad
-1 siblings, 0 replies; 15+ messages in thread
From: Dupuis, Chad @ 2017-01-25 20:33 UTC (permalink / raw)
To: martin.petersen
Cc: linux-scsi, fcoe-devel, netdev, yuval.mintz, QLogic-Storage-Upstream
From: "Dupuis, Chad" <chad.dupuis@cavium.com>
The QLogic FastLinQ Driver for FCoE (qedf) is the FCoE specific module for 41000
Series Converged Network Adapters by QLogic. This patch consists of following
changes:
- MAINTAINERS Makefile and Kconfig changes for qedf
- PCI driver registration
- libfc/fcoe host level initialization
- SCSI host template initialization and callbacks
- Debugfs and log level infrastructure
- Link handling
- Firmware interface structures
- QED core module initialization
- Light L2 interface callbacks
- I/O request initialization
- Firmware I/O completion handling
- Firmware ELS request/response handling
- FIP request/response handled by the driver itself
Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@cavium.com>
Signed-off-by: Arun Easi <arun.easi@cavium.com>
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
---
MAINTAINERS | 6 +
drivers/scsi/Kconfig | 1 +
drivers/scsi/Makefile | 1 +
drivers/scsi/qedf/Kconfig | 11 +
drivers/scsi/qedf/Makefile | 5 +
drivers/scsi/qedf/qedf.h | 548 +++++++
drivers/scsi/qedf/qedf_attr.c | 165 ++
drivers/scsi/qedf/qedf_dbg.c | 195 +++
drivers/scsi/qedf/qedf_dbg.h | 154 ++
drivers/scsi/qedf/qedf_debugfs.c | 460 ++++++
drivers/scsi/qedf/qedf_els.c | 983 +++++++++++
drivers/scsi/qedf/qedf_fip.c | 269 +++
drivers/scsi/qedf/qedf_hsi.h | 427 +++++
drivers/scsi/qedf/qedf_io.c | 2280 ++++++++++++++++++++++++++
drivers/scsi/qedf/qedf_main.c | 3335 ++++++++++++++++++++++++++++++++++++++
drivers/scsi/qedf/qedf_version.h | 15 +
16 files changed, 8855 insertions(+)
create mode 100644 drivers/scsi/qedf/Kconfig
create mode 100644 drivers/scsi/qedf/Makefile
create mode 100644 drivers/scsi/qedf/qedf.h
create mode 100644 drivers/scsi/qedf/qedf_attr.c
create mode 100644 drivers/scsi/qedf/qedf_dbg.c
create mode 100644 drivers/scsi/qedf/qedf_dbg.h
create mode 100644 drivers/scsi/qedf/qedf_debugfs.c
create mode 100644 drivers/scsi/qedf/qedf_els.c
create mode 100644 drivers/scsi/qedf/qedf_fip.c
create mode 100644 drivers/scsi/qedf/qedf_hsi.h
create mode 100644 drivers/scsi/qedf/qedf_io.c
create mode 100644 drivers/scsi/qedf/qedf_main.c
create mode 100644 drivers/scsi/qedf/qedf_version.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 8eeee96..90f7238 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10158,6 +10158,12 @@ L: linux-scsi@vger.kernel.org
S: Supported
F: drivers/scsi/qedi/
+QLOGIC QL41xxx FCOE DRIVER
+M: QLogic-Storage-Upstream@cavium.com
+L: linux-scsi@vger.kernel.org
+S: Supported
+F: drivers/scsi/qedf/
+
QNX4 FILESYSTEM
M: Anders Larsen <al@alarsen.net>
W: http://www.alarsen.net/linux/qnx4fs/
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index a4f6b0d..e9fce78b 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -1234,6 +1234,7 @@ config SCSI_QLOGICPTI
source "drivers/scsi/qla2xxx/Kconfig"
source "drivers/scsi/qla4xxx/Kconfig"
source "drivers/scsi/qedi/Kconfig"
+source "drivers/scsi/qedf/Kconfig"
config SCSI_LPFC
tristate "Emulex LightPulse Fibre Channel Support"
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 736b774..fc28555 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -41,6 +41,7 @@ obj-$(CONFIG_FCOE) += fcoe/
obj-$(CONFIG_FCOE_FNIC) += fnic/
obj-$(CONFIG_SCSI_SNIC) += snic/
obj-$(CONFIG_SCSI_BNX2X_FCOE) += libfc/ fcoe/ bnx2fc/
+obj-$(CONFIG_QEDF) += qedf/
obj-$(CONFIG_ISCSI_TCP) += libiscsi.o libiscsi_tcp.o iscsi_tcp.o
obj-$(CONFIG_INFINIBAND_ISER) += libiscsi.o
obj-$(CONFIG_ISCSI_BOOT_SYSFS) += iscsi_boot_sysfs.o
diff --git a/drivers/scsi/qedf/Kconfig b/drivers/scsi/qedf/Kconfig
new file mode 100644
index 0000000..943f5ee
--- /dev/null
+++ b/drivers/scsi/qedf/Kconfig
@@ -0,0 +1,11 @@
+config QEDF
+ tristate "QLogic QEDF 25/40/100Gb FCoE Initiator Driver Support"
+ depends on PCI && SCSI
+ depends on QED
+ depends on LIBFC
+ depends on LIBFCOE
+ select QED_LL2
+ select QED_FCOE
+ ---help---
+ This driver supports FCoE offload for the QLogic FastLinQ
+ 41000 Series Converged Network Adapters.
diff --git a/drivers/scsi/qedf/Makefile b/drivers/scsi/qedf/Makefile
new file mode 100644
index 0000000..64e9f50
--- /dev/null
+++ b/drivers/scsi/qedf/Makefile
@@ -0,0 +1,5 @@
+obj-$(CONFIG_QEDF) := qedf.o
+qedf-y = qedf_dbg.o qedf_main.o qedf_io.o qedf_fip.o \
+ qedf_attr.o qedf_els.o
+
+qedf-$(CONFIG_DEBUG_FS) += qedf_debugfs.o
diff --git a/drivers/scsi/qedf/qedf.h b/drivers/scsi/qedf/qedf.h
new file mode 100644
index 0000000..f8d06de
--- /dev/null
+++ b/drivers/scsi/qedf/qedf.h
@@ -0,0 +1,548 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#ifndef _QEDFC_H_
+#define _QEDFC_H_
+
+#include <scsi/libfcoe.h>
+#include <scsi/libfc.h>
+#include <scsi/fc/fc_fip.h>
+#include <scsi/fc/fc_fc2.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/fc_encode.h>
+#include <linux/version.h>
+
+
+/* qedf_hsi.h needs to before included any qed includes */
+#include "qedf_hsi.h"
+
+#include <linux/qed/qed_if.h>
+#include <linux/qed/qed_fcoe_if.h>
+#include <linux/qed/qed_ll2_if.h>
+#include "qedf_version.h"
+#include "qedf_dbg.h"
+
+/* Helpers to extract upper and lower 32-bits of pointer */
+#define U64_HI(val) ((u32)(((u64)(val)) >> 32))
+#define U64_LO(val) ((u32)(((u64)(val)) & 0xffffffff))
+
+#define QEDF_DESCR "QLogic FCoE Offload Driver"
+#define QEDF_MODULE_NAME "qedf"
+
+#define QEDF_MIN_XID 0
+#define QEDF_MAX_SCSI_XID (NUM_TASKS_PER_CONNECTION - 1)
+#define QEDF_MAX_ELS_XID 4095
+#define QEDF_FLOGI_RETRY_CNT 3
+#define QEDF_RPORT_RETRY_CNT 255
+#define QEDF_MAX_SESSIONS 1024
+#define QEDF_MAX_PAYLOAD 2048
+#define QEDF_MAX_BDS_PER_CMD 256
+#define QEDF_MAX_BD_LEN 0xffff
+#define QEDF_BD_SPLIT_SZ 0x1000
+#define QEDF_PAGE_SIZE 4096
+#define QED_HW_DMA_BOUNDARY 0xfff
+#define QEDF_MAX_SGLEN_FOR_CACHESGL ((1U << 16) - 1)
+#define QEDF_MFS (QEDF_MAX_PAYLOAD + \
+ sizeof(struct fc_frame_header))
+#define QEDF_MAX_NPIV 64
+#define QEDF_TM_TIMEOUT 10
+#define QEDF_ABORT_TIMEOUT 10
+#define QEDF_CLEANUP_TIMEOUT 10
+#define QEDF_MAX_CDB_LEN 16
+
+#define UPSTREAM_REMOVE 1
+#define UPSTREAM_KEEP 1
+
+struct qedf_mp_req {
+ uint8_t tm_flags;
+
+ uint32_t req_len;
+ void *req_buf;
+ dma_addr_t req_buf_dma;
+ struct fcoe_sge *mp_req_bd;
+ dma_addr_t mp_req_bd_dma;
+ struct fc_frame_header req_fc_hdr;
+
+ uint32_t resp_len;
+ void *resp_buf;
+ dma_addr_t resp_buf_dma;
+ struct fcoe_sge *mp_resp_bd;
+ dma_addr_t mp_resp_bd_dma;
+ struct fc_frame_header resp_fc_hdr;
+};
+
+struct qedf_els_cb_arg {
+ struct qedf_ioreq *aborted_io_req;
+ struct qedf_ioreq *io_req;
+ u8 op; /* Used to keep track of ELS op */
+ uint16_t l2_oxid;
+ u32 offset; /* Used for sequence cleanup */
+ u8 r_ctl; /* Used for sequence cleanup */
+};
+
+enum qedf_ioreq_event {
+ QEDF_IOREQ_EV_ABORT_SUCCESS,
+ QEDF_IOREQ_EV_ABORT_FAILED,
+ QEDF_IOREQ_EV_SEND_RRQ,
+ QEDF_IOREQ_EV_ELS_TMO,
+ QEDF_IOREQ_EV_ELS_ERR_DETECT,
+ QEDF_IOREQ_EV_ELS_FLUSH,
+ QEDF_IOREQ_EV_CLEANUP_SUCCESS,
+ QEDF_IOREQ_EV_CLEANUP_FAILED,
+};
+
+#define FC_GOOD 0
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER (0x1<<2)
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER (0x1<<3)
+#define CMD_SCSI_STATUS(Cmnd) ((Cmnd)->SCp.Status)
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID (0x1<<0)
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID (0x1<<1)
+struct qedf_ioreq {
+ struct list_head link;
+ uint16_t xid;
+ struct scsi_cmnd *sc_cmd;
+ bool use_slowpath; /* Use slow SGL for this I/O */
+#define QEDF_SCSI_CMD 1
+#define QEDF_TASK_MGMT_CMD 2
+#define QEDF_ABTS 3
+#define QEDF_ELS 4
+#define QEDF_CLEANUP 5
+#define QEDF_SEQ_CLEANUP 6
+ u8 cmd_type;
+#define QEDF_CMD_OUTSTANDING 0x0
+#define QEDF_CMD_IN_ABORT 0x1
+#define QEDF_CMD_IN_CLEANUP 0x2
+#define QEDF_CMD_SRR_SENT 0x3
+ u8 io_req_flags;
+ struct qedf_rport *fcport;
+ unsigned long flags;
+ enum qedf_ioreq_event event;
+ size_t data_xfer_len;
+ struct kref refcount;
+ struct qedf_cmd_mgr *cmd_mgr;
+ struct io_bdt *bd_tbl;
+ struct delayed_work timeout_work;
+ struct completion tm_done;
+ struct completion abts_done;
+ struct fcoe_task_context *task;
+ int idx;
+/*
+ * Need to allocate enough room for both sense data and FCP response data
+ * which has a max length of 8 bytes according to spec.
+ */
+#define QEDF_SCSI_SENSE_BUFFERSIZE (SCSI_SENSE_BUFFERSIZE + 8)
+ uint8_t *sense_buffer;
+ dma_addr_t sense_buffer_dma;
+ u32 fcp_resid;
+ u32 fcp_rsp_len;
+ u32 fcp_sns_len;
+ u8 cdb_status;
+ u8 fcp_status;
+ u8 fcp_rsp_code;
+ u8 scsi_comp_flags;
+#define QEDF_MAX_REUSE 0xfff
+ u16 reuse_count;
+ struct qedf_mp_req mp_req;
+ void (*cb_func)(struct qedf_els_cb_arg *cb_arg);
+ struct qedf_els_cb_arg *cb_arg;
+ int fp_idx;
+ unsigned int cpu;
+ unsigned int int_cpu;
+#define QEDF_IOREQ_SLOW_SGE 0
+#define QEDF_IOREQ_SINGLE_SGE 1
+#define QEDF_IOREQ_FAST_SGE 2
+ u8 sge_type;
+ struct delayed_work rrq_work;
+
+ /* Used for sequence level recovery; i.e. REC/SRR */
+ uint32_t rx_buf_off;
+ uint32_t tx_buf_off;
+ uint32_t rx_id;
+ uint32_t task_retry_identifier;
+
+ /*
+ * Used to tell if we need to return a SCSI command
+ * during some form of error processing.
+ */
+ bool return_scsi_cmd_on_abts;
+};
+
+extern struct workqueue_struct *qedf_io_wq;
+
+struct qedf_rport {
+ spinlock_t rport_lock;
+#define QEDF_RPORT_SESSION_READY 1
+#define QEDF_RPORT_UPLOADING_CONNECTION 2
+ unsigned long flags;
+ unsigned long retry_delay_timestamp;
+ struct fc_rport *rport;
+ struct fc_rport_priv *rdata;
+ struct qedf_ctx *qedf;
+ u32 handle; /* Handle from qed */
+ u32 fw_cid; /* fw_cid from qed */
+ void __iomem *p_doorbell;
+ /* Send queue management */
+ atomic_t free_sqes;
+ atomic_t num_active_ios;
+ struct fcoe_wqe *sq;
+ dma_addr_t sq_dma;
+ u16 sq_prod_idx;
+ u16 fw_sq_prod_idx;
+ u16 sq_con_idx;
+ u32 sq_mem_size;
+ void *sq_pbl;
+ dma_addr_t sq_pbl_dma;
+ u32 sq_pbl_size;
+ u32 sid;
+#define QEDF_RPORT_TYPE_DISK 1
+#define QEDF_RPORT_TYPE_TAPE 2
+ uint dev_type; /* Disk or tape */
+ struct list_head peers;
+};
+
+/* Used to contain LL2 skb's in ll2_skb_list */
+struct qedf_skb_work {
+ struct work_struct work;
+ struct sk_buff *skb;
+ struct qedf_ctx *qedf;
+};
+
+struct qedf_fastpath {
+#define QEDF_SB_ID_NULL 0xffff
+ u16 sb_id;
+ struct qed_sb_info *sb_info;
+ struct qedf_ctx *qedf;
+ /* Keep track of number of completions on this fastpath */
+ unsigned long completions;
+ uint32_t cq_num_entries;
+};
+
+/* Used to pass fastpath information needed to process CQEs */
+struct qedf_io_work {
+ struct work_struct work;
+ struct fcoe_cqe cqe;
+ struct qedf_ctx *qedf;
+ struct fc_frame *fp;
+};
+
+struct qedf_glbl_q_params {
+ u64 hw_p_cq; /* Completion queue PBL */
+ u64 hw_p_rq; /* Request queue PBL */
+ u64 hw_p_cmdq; /* Command queue PBL */
+};
+
+struct global_queue {
+ struct fcoe_cqe *cq;
+ dma_addr_t cq_dma;
+ u32 cq_mem_size;
+ u32 cq_cons_idx; /* Completion queue consumer index */
+ u32 cq_prod_idx;
+
+ void *cq_pbl;
+ dma_addr_t cq_pbl_dma;
+ u32 cq_pbl_size;
+};
+
+/* I/O tracing entry */
+#define QEDF_IO_TRACE_SIZE 2048
+struct qedf_io_log {
+#define QEDF_IO_TRACE_REQ 0
+#define QEDF_IO_TRACE_RSP 1
+ uint8_t direction;
+ uint16_t task_id;
+ uint32_t port_id; /* Remote port fabric ID */
+ int lun;
+ char op; /* SCSI CDB */
+ uint8_t lba[4];
+ unsigned int bufflen; /* SCSI buffer length */
+ unsigned int sg_count; /* Number of SG elements */
+ int result; /* Result passed back to mid-layer */
+ unsigned long jiffies; /* Time stamp when I/O logged */
+ int refcount; /* Reference count for task id */
+ unsigned int req_cpu; /* CPU that the task is queued on */
+ unsigned int int_cpu; /* Interrupt CPU that the task is received on */
+ unsigned int rsp_cpu; /* CPU that task is returned on */
+ u8 sge_type; /* Did we take the slow, single or fast SGE path */
+};
+
+/* Number of entries in BDQ */
+#define QEDF_BDQ_SIZE 256
+#define QEDF_BDQ_BUF_SIZE 2072
+
+/* DMA coherent buffers for BDQ */
+struct qedf_bdq_buf {
+ void *buf_addr;
+ dma_addr_t buf_dma;
+};
+
+/* Main adapter struct */
+struct qedf_ctx {
+ struct qedf_dbg_ctx dbg_ctx;
+ struct fcoe_ctlr ctlr;
+ struct fc_lport *lport;
+ u8 data_src_addr[ETH_ALEN];
+#define QEDF_LINK_DOWN 0
+#define QEDF_LINK_UP 1
+ atomic_t link_state;
+#define QEDF_DCBX_PENDING 0
+#define QEDF_DCBX_DONE 1
+ atomic_t dcbx;
+ uint16_t max_scsi_xid;
+ uint16_t max_els_xid;
+#define QEDF_NULL_VLAN_ID -1
+#define QEDF_FALLBACK_VLAN 1002
+#define QEDF_DEFAULT_PRIO 3
+ int vlan_id;
+ uint vlan_hw_insert:1;
+ struct qed_dev *cdev;
+ struct qed_dev_fcoe_info dev_info;
+ struct qed_int_info int_info;
+ uint16_t last_command;
+ spinlock_t hba_lock;
+ struct pci_dev *pdev;
+ u64 wwnn;
+ u64 wwpn;
+ u8 __aligned(16) mac[ETH_ALEN];
+ struct list_head fcports;
+ atomic_t num_offloads;
+ unsigned int curr_conn_id;
+ struct workqueue_struct *ll2_recv_wq;
+ struct workqueue_struct *link_update_wq;
+ struct delayed_work link_update;
+ struct delayed_work link_recovery;
+ struct completion flogi_compl;
+ struct completion fipvlan_compl;
+
+ /*
+ * Used to tell if we're in the window where we are waiting for
+ * the link to come back up before informting fcoe that the link is
+ * done.
+ */
+ atomic_t link_down_tmo_valid;
+#define QEDF_TIMER_INTERVAL (1 * HZ)
+ struct timer_list timer; /* One second book keeping timer */
+#define QEDF_DRAIN_ACTIVE 1
+#define QEDF_LL2_STARTED 2
+#define QEDF_UNLOADING 3
+#define QEDF_GRCDUMP_CAPTURE 4
+#define QEDF_IN_RECOVERY 5
+ unsigned long flags; /* Miscellaneous state flags */
+ int fipvlan_retries;
+ u8 num_queues;
+ struct global_queue **global_queues;
+ /* Pointer to array of queue structures */
+ struct qedf_glbl_q_params *p_cpuq;
+ /* Physical address of array of queue structures */
+ dma_addr_t hw_p_cpuq;
+
+ struct qedf_bdq_buf bdq[QEDF_BDQ_SIZE];
+ void *bdq_pbl;
+ dma_addr_t bdq_pbl_dma;
+ size_t bdq_pbl_mem_size;
+ void *bdq_pbl_list;
+ dma_addr_t bdq_pbl_list_dma;
+ u8 bdq_pbl_list_num_entries;
+ void __iomem *bdq_primary_prod;
+ void __iomem *bdq_secondary_prod;
+ uint16_t bdq_prod_idx;
+
+ /* Structure for holding all the fastpath for this qedf_ctx */
+ struct qedf_fastpath *fp_array;
+ struct qed_fcoe_tid tasks;
+ struct qedf_cmd_mgr *cmd_mgr;
+ /* Holds the PF parameters we pass to qed to start he FCoE function */
+ struct qed_pf_params pf_params;
+ /* Used to time middle path ELS and TM commands */
+ struct workqueue_struct *timer_work_queue;
+
+#define QEDF_IO_WORK_MIN 64
+ mempool_t *io_mempool;
+ struct workqueue_struct *dpc_wq;
+
+ u32 slow_sge_ios;
+ u32 fast_sge_ios;
+ u32 single_sge_ios;
+
+ uint8_t *grcdump;
+ uint32_t grcdump_size;
+
+ struct qedf_io_log io_trace_buf[QEDF_IO_TRACE_SIZE];
+ spinlock_t io_trace_lock;
+ uint16_t io_trace_idx;
+
+ bool stop_io_on_error;
+
+ u32 flogi_cnt;
+ u32 flogi_failed;
+
+ /* Used for fc statistics */
+ u64 input_requests;
+ u64 output_requests;
+ u64 control_requests;
+ u64 packet_aborts;
+ u64 alloc_failures;
+};
+
+/*
+ * 4 regs size $$KEEP_ENDIANNESS$$
+ */
+
+struct io_bdt {
+ struct qedf_ioreq *io_req;
+ struct fcoe_sge *bd_tbl;
+ dma_addr_t bd_tbl_dma;
+ u16 bd_valid;
+};
+
+struct qedf_cmd_mgr {
+ struct qedf_ctx *qedf;
+ u16 idx;
+ struct io_bdt **io_bdt_pool;
+#define FCOE_PARAMS_NUM_TASKS 4096
+ struct qedf_ioreq cmds[FCOE_PARAMS_NUM_TASKS];
+ spinlock_t lock;
+ atomic_t free_list_cnt;
+};
+
+/* Stolen from qed_cxt_api.h and adapted for qed_fcoe_info
+ * Usage:
+ *
+ * void *ptr;
+ * ptr = qedf_get_task_mem(&qedf->tasks, 128);
+ */
+static inline void *qedf_get_task_mem(struct qed_fcoe_tid *info, u32 tid)
+{
+ return (void *)(info->blocks[tid / info->num_tids_per_block] +
+ (tid % info->num_tids_per_block) * info->size);
+}
+
+static inline void qedf_stop_all_io(struct qedf_ctx *qedf)
+{
+ set_bit(QEDF_UNLOADING, &qedf->flags);
+}
+
+/*
+ * Externs
+ */
+#define QEDF_DEFAULT_LOG_MASK 0x3CFB6
+extern const struct qed_fcoe_ops *qed_ops;
+extern uint qedf_dump_frames;
+extern uint qedf_io_tracing;
+extern uint qedf_stop_io_on_error;
+extern uint qedf_link_down_tmo;
+#define QEDF_RETRY_DELAY_MAX 20 /* 2 seconds */
+extern bool qedf_retry_delay;
+extern uint qedf_debug;
+
+extern struct qedf_cmd_mgr *qedf_cmd_mgr_alloc(struct qedf_ctx *qedf);
+extern void qedf_cmd_mgr_free(struct qedf_cmd_mgr *cmgr);
+extern int qedf_queuecommand(struct Scsi_Host *host,
+ struct scsi_cmnd *sc_cmd);
+extern void qedf_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb);
+extern void qedf_update_src_mac(struct fc_lport *lport, u8 *addr);
+extern u8 *qedf_get_src_mac(struct fc_lport *lport);
+extern void qedf_fip_recv(struct qedf_ctx *qedf, struct sk_buff *skb);
+extern void qedf_fcoe_send_vlan_req(struct qedf_ctx *qedf);
+extern void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req);
+extern void qedf_process_warning_compl(struct qedf_ctx *qedf,
+ struct fcoe_cqe *cqe,struct qedf_ioreq *io_req);
+extern void qedf_process_error_detect(struct qedf_ctx *qedf,
+ struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
+extern void qedf_flush_active_ios(struct qedf_rport *fcport, int lun);
+extern void qedf_release_cmd(struct kref *ref);
+extern int qedf_initiate_abts(struct qedf_ioreq *io_req,
+ bool return_scsi_cmd_on_abts);
+extern void qedf_process_abts_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req);
+extern struct qedf_ioreq *qedf_alloc_cmd(struct qedf_rport *fcport,
+ u8 cmd_type);
+
+extern struct device_attribute *qedf_host_attrs[];
+extern void qedf_cmd_timer_set(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
+ unsigned int timer_msec);
+extern int qedf_init_mp_req(struct qedf_ioreq *io_req);
+extern void qedf_init_mp_task(struct qedf_ioreq *io_req,
+ struct fcoe_task_context *task_ctx);
+extern void qedf_add_to_sq(struct qedf_rport *fcport, u16 xid,
+ u32 ptu_invalidate, enum fcoe_task_type req_type, u32 offset);
+extern void qedf_ring_doorbell(struct qedf_rport *fcport);
+extern void qedf_process_els_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *els_req);
+extern int qedf_send_rrq(struct qedf_ioreq *aborted_io_req);
+extern int qedf_send_adisc(struct qedf_rport *fcport, struct fc_frame *fp);
+extern int qedf_initiate_cleanup(struct qedf_ioreq *io_req,
+ bool return_scsi_cmd_on_abts);
+extern void qedf_process_cleanup_compl(struct qedf_ctx *qedf,
+ struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
+extern int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags);
+extern void qedf_process_tmf_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req);
+extern void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe);
+extern void qedf_scsi_done(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
+ int result);
+extern void qedf_set_vlan_id(struct qedf_ctx *qedf, int vlan_id);
+extern void qedf_create_sysfs_ctx_attr(struct qedf_ctx *qedf);
+extern void qedf_remove_sysfs_ctx_attr(struct qedf_ctx *qedf);
+extern void qedf_capture_grc_dump(struct qedf_ctx *qedf);
+extern void qedf_wait_for_upload(struct qedf_ctx *qedf);
+extern void qedf_process_unsol_compl(struct qedf_ctx *qedf, uint16_t que_idx,
+ struct fcoe_cqe *cqe);
+extern void qedf_restart_rport(struct qedf_rport *fcport);
+extern int qedf_send_rec(struct qedf_ioreq *orig_io_req);
+extern int qedf_post_io_req(struct qedf_rport *fcport,
+ struct qedf_ioreq *io_req);
+extern void qedf_process_seq_cleanup_compl(struct qedf_ctx *qedf,
+ struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
+extern int qedf_send_flogi(struct qedf_ctx *qedf);
+extern void qedf_fp_io_handler(struct work_struct *work);
+
+#define FCOE_WORD_TO_BYTE 4
+#define QEDF_MAX_TASK_NUM 0xFFFF
+
+struct fip_vlan {
+ struct ethhdr eth;
+ struct fip_header fip;
+ struct {
+ struct fip_mac_desc mac;
+ struct fip_wwn_desc wwnn;
+ } desc;
+};
+
+/* SQ/CQ Sizes */
+#define GBL_RSVD_TASKS 16
+#define NUM_TASKS_PER_CONNECTION 1024
+#define NUM_RW_TASKS_PER_CONNECTION 512
+#define FCOE_PARAMS_CQ_NUM_ENTRIES FCOE_PARAMS_NUM_TASKS
+
+#define FCOE_PARAMS_CMDQ_NUM_ENTRIES FCOE_PARAMS_NUM_TASKS
+#define SQ_NUM_ENTRIES NUM_TASKS_PER_CONNECTION
+
+#define QEDF_FCOE_PARAMS_GL_RQ_PI 0
+#define QEDF_FCOE_PARAMS_GL_CMD_PI 1
+
+#define QEDF_READ (1 << 1)
+#define QEDF_WRITE (1 << 0)
+#define MAX_FIBRE_LUNS 0xffffffff
+
+#define QEDF_MAX_NUM_CQS 8
+
+/*
+ * PCI function probe defines
+ */
+/* Probe/remove called during normal PCI probe */
+#define QEDF_MODE_NORMAL 0
+/* Probe/remove called from qed error recovery */
+#define QEDF_MODE_RECOVERY 1
+
+#define SUPPORTED_25000baseKR_Full (1<<27)
+#define SUPPORTED_50000baseKR2_Full (1<<28)
+#define SUPPORTED_100000baseKR4_Full (1<<29)
+#define SUPPORTED_100000baseCR4_Full (1<<30)
+
+#endif
diff --git a/drivers/scsi/qedf/qedf_attr.c b/drivers/scsi/qedf/qedf_attr.c
new file mode 100644
index 0000000..4772061
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_attr.c
@@ -0,0 +1,165 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include "qedf.h"
+
+static ssize_t
+qedf_fcoe_mac_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct fc_lport *lport = shost_priv(class_to_shost(dev));
+ u32 port_id;
+ u8 lport_src_id[3];
+ u8 fcoe_mac[6];
+
+ port_id = fc_host_port_id(lport->host);
+ lport_src_id[2] = (port_id & 0x000000FF);
+ lport_src_id[1] = (port_id & 0x0000FF00) >> 8;
+ lport_src_id[0] = (port_id & 0x00FF0000) >> 16;
+ fc_fcoe_set_mac(fcoe_mac, lport_src_id);
+
+ return scnprintf(buf, PAGE_SIZE, "%pM\n", fcoe_mac);
+}
+
+static DEVICE_ATTR(fcoe_mac, S_IRUGO, qedf_fcoe_mac_show, NULL);
+
+struct device_attribute *qedf_host_attrs[] = {
+ &dev_attr_fcoe_mac,
+ NULL,
+};
+
+extern const struct qed_fcoe_ops *qed_ops;
+
+inline bool qedf_is_vport(struct qedf_ctx *qedf)
+{
+ return (!(qedf->lport->vport == NULL));
+}
+
+/* Get base qedf for physical port from vport */
+static struct qedf_ctx *qedf_get_base_qedf(struct qedf_ctx *qedf)
+{
+ struct fc_lport *lport;
+ struct fc_lport *base_lport;
+
+ if (!(qedf_is_vport(qedf)))
+ return NULL;
+
+ lport = qedf->lport;
+ base_lport = shost_priv(vport_to_shost(lport->vport));
+ return (struct qedf_ctx *)(lport_priv(base_lport));
+}
+
+void qedf_capture_grc_dump(struct qedf_ctx *qedf)
+{
+ struct qedf_ctx *base_qedf;
+
+ /* Make sure we use the base qedf to take the GRC dump */
+ if (qedf_is_vport(qedf))
+ base_qedf = qedf_get_base_qedf(qedf);
+ else
+ base_qedf = qedf;
+
+ if (test_bit(QEDF_GRCDUMP_CAPTURE, &base_qedf->flags)) {
+ QEDF_INFO(&(base_qedf->dbg_ctx), QEDF_LOG_INFO,
+ "GRC Dump already captured.\n");
+ return;
+ }
+
+
+ qedf_get_grc_dump(base_qedf->cdev, qed_ops->common,
+ &base_qedf->grcdump, &base_qedf->grcdump_size);
+ QEDF_ERR(&(base_qedf->dbg_ctx), "GRC Dump captured.\n");
+ set_bit(QEDF_GRCDUMP_CAPTURE, &base_qedf->flags);
+ qedf_uevent_emit(base_qedf->lport->host, QEDF_UEVENT_CODE_GRCDUMP,
+ NULL);
+}
+
+static ssize_t
+qedf_sysfs_read_grcdump(struct file *filep, struct kobject *kobj,
+ struct bin_attribute *ba, char *buf, loff_t off,
+ size_t count)
+{
+ ssize_t ret = 0;
+ struct fc_lport *lport = shost_priv(dev_to_shost(container_of(kobj,
+ struct device, kobj)));
+ struct qedf_ctx *qedf = lport_priv(lport);
+
+ if (test_bit(QEDF_GRCDUMP_CAPTURE, &qedf->flags)) {
+ ret = memory_read_from_buffer(buf, count, &off,
+ qedf->grcdump, qedf->grcdump_size);
+ } else {
+ QEDF_ERR(&(qedf->dbg_ctx), "GRC Dump not captured!\n");
+ }
+
+ return ret;
+}
+
+static ssize_t
+qedf_sysfs_write_grcdump(struct file *filep, struct kobject *kobj,
+ struct bin_attribute *ba, char *buf, loff_t off,
+ size_t count)
+{
+ struct fc_lport *lport = NULL;
+ struct qedf_ctx *qedf = NULL;
+ long reading;
+ int ret = 0;
+ char msg[40];
+
+ if (off != 0)
+ return ret;
+
+
+ lport = shost_priv(dev_to_shost(container_of(kobj,
+ struct device, kobj)));
+ qedf = lport_priv(lport);
+
+ buf[1] = 0;
+ ret = kstrtol(buf, 10, &reading);
+ if (ret) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Invalid input, err(%d)\n", ret);
+ return ret;
+ }
+
+ memset(msg, 0, sizeof(msg));
+ switch (reading) {
+ case 0:
+ memset(qedf->grcdump, 0, qedf->grcdump_size);
+ clear_bit(QEDF_GRCDUMP_CAPTURE, &qedf->flags);
+ break;
+ case 1:
+ qedf_capture_grc_dump(qedf);
+ break;
+ }
+
+ return count;
+}
+
+static struct bin_attribute sysfs_grcdump_attr = {
+ .attr = {
+ .name = "grcdump",
+ .mode = S_IRUSR | S_IWUSR,
+ },
+ .size = 0,
+ .read = qedf_sysfs_read_grcdump,
+ .write = qedf_sysfs_write_grcdump,
+};
+
+static struct sysfs_bin_attrs bin_file_entries[] = {
+ {"grcdump", &sysfs_grcdump_attr},
+ {NULL},
+};
+
+void qedf_create_sysfs_ctx_attr(struct qedf_ctx *qedf)
+{
+ qedf_create_sysfs_attr(qedf->lport->host, bin_file_entries);
+}
+
+void qedf_remove_sysfs_ctx_attr(struct qedf_ctx *qedf)
+{
+ qedf_remove_sysfs_attr(qedf->lport->host, bin_file_entries);
+}
diff --git a/drivers/scsi/qedf/qedf_dbg.c b/drivers/scsi/qedf/qedf_dbg.c
new file mode 100644
index 0000000..e023f5d
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_dbg.c
@@ -0,0 +1,195 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include "qedf_dbg.h"
+#include <linux/vmalloc.h>
+
+void
+qedf_dbg_err(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ const char *fmt, ...)
+{
+ va_list va;
+ struct va_format vaf;
+ char nfunc[32];
+
+ memset(nfunc, 0, sizeof(nfunc));
+ memcpy(nfunc, func, sizeof(nfunc) - 1);
+
+ va_start(va, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &va;
+
+ if (likely(qedf) && likely(qedf->pdev))
+ pr_err("[%s]:[%s:%d]:%d: %pV", dev_name(&(qedf->pdev->dev)),
+ nfunc, line, qedf->host_no, &vaf);
+ else
+ pr_err("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+
+ va_end(va);
+}
+
+void
+qedf_dbg_warn(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ const char *fmt, ...)
+{
+ va_list va;
+ struct va_format vaf;
+ char nfunc[32];
+
+ memset(nfunc, 0, sizeof(nfunc));
+ memcpy(nfunc, func, sizeof(nfunc) - 1);
+
+ va_start(va, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &va;
+
+ if (!(qedf_debug & QEDF_LOG_WARN))
+ goto ret;
+
+ if (likely(qedf) && likely(qedf->pdev))
+ pr_warn("[%s]:[%s:%d]:%d: %pV", dev_name(&(qedf->pdev->dev)),
+ nfunc, line, qedf->host_no, &vaf);
+ else
+ pr_warn("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+
+ret:
+ va_end(va);
+}
+
+void
+qedf_dbg_notice(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ const char *fmt, ...)
+{
+ va_list va;
+ struct va_format vaf;
+ char nfunc[32];
+
+ memset(nfunc, 0, sizeof(nfunc));
+ memcpy(nfunc, func, sizeof(nfunc) - 1);
+
+ va_start(va, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &va;
+
+ if (!(qedf_debug & QEDF_LOG_NOTICE))
+ goto ret;
+
+ if (likely(qedf) && likely(qedf->pdev))
+ pr_notice("[%s]:[%s:%d]:%d: %pV",
+ dev_name(&(qedf->pdev->dev)), nfunc, line,
+ qedf->host_no, &vaf);
+ else
+ pr_notice("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+
+ret:
+ va_end(va);
+}
+
+void
+qedf_dbg_info(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ u32 level, const char *fmt, ...)
+{
+ va_list va;
+ struct va_format vaf;
+ char nfunc[32];
+
+ memset(nfunc, 0, sizeof(nfunc));
+ memcpy(nfunc, func, sizeof(nfunc) - 1);
+
+ va_start(va, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &va;
+
+ if (!(qedf_debug & level))
+ goto ret;
+
+ if (likely(qedf) && likely(qedf->pdev))
+ pr_info("[%s]:[%s:%d]:%d: %pV", dev_name(&(qedf->pdev->dev)),
+ nfunc, line, qedf->host_no, &vaf);
+ else
+ pr_info("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+
+ret:
+ va_end(va);
+}
+
+int
+qedf_alloc_grc_dump_buf(u8 **buf, uint32_t len)
+{
+ *buf = vmalloc(len);
+ if (!(*buf))
+ return -ENOMEM;
+
+ memset(*buf, 0, len);
+ return 0;
+}
+
+void
+qedf_free_grc_dump_buf(uint8_t **buf)
+{
+ vfree(*buf);
+ *buf = NULL;
+}
+
+int
+qedf_get_grc_dump(struct qed_dev *cdev, const struct qed_common_ops *common,
+ u8 **buf, uint32_t *grcsize)
+{
+ if (!*buf)
+ return -EINVAL;
+
+ return common->dbg_grc(cdev, *buf, grcsize);
+}
+
+void
+qedf_uevent_emit(struct Scsi_Host *shost, u32 code, char *msg)
+{
+ char event_string[40];
+ char *envp[] = {event_string, NULL};
+
+ memset(event_string, 0, sizeof(event_string));
+ switch (code) {
+ case QEDF_UEVENT_CODE_GRCDUMP:
+ if (msg)
+ strncpy(event_string, msg, strlen(msg));
+ else
+ sprintf(event_string, "GRCDUMP=%u", shost->host_no);
+ break;
+ default:
+ /* do nothing */
+ break;
+ }
+
+ kobject_uevent_env(&shost->shost_gendev.kobj, KOBJ_CHANGE, envp);
+}
+
+int
+qedf_create_sysfs_attr(struct Scsi_Host *shost, struct sysfs_bin_attrs *iter)
+{
+ int ret = 0;
+
+ for (; iter->name; iter++) {
+ ret = sysfs_create_bin_file(&shost->shost_gendev.kobj,
+ iter->attr);
+ if (ret)
+ pr_err("Unable to create sysfs %s attr, err(%d).\n",
+ iter->name, ret);
+ }
+ return ret;
+}
+
+void
+qedf_remove_sysfs_attr(struct Scsi_Host *shost, struct sysfs_bin_attrs *iter)
+{
+ for (; iter->name; iter++)
+ sysfs_remove_bin_file(&shost->shost_gendev.kobj, iter->attr);
+}
diff --git a/drivers/scsi/qedf/qedf_dbg.h b/drivers/scsi/qedf/qedf_dbg.h
new file mode 100644
index 0000000..23bd706
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_dbg.h
@@ -0,0 +1,154 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#ifndef _QEDF_DBG_H_
+#define _QEDF_DBG_H_
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/compiler.h>
+#include <linux/string.h>
+#include <linux/version.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <scsi/scsi_transport.h>
+#include <linux/fs.h>
+
+#include <linux/qed/common_hsi.h>
+#include <linux/qed/qed_if.h>
+
+extern uint qedf_debug;
+
+/* Debug print level definitions */
+#define QEDF_LOG_DEFAULT 0x1 /* Set default logging mask */
+#define QEDF_LOG_INFO 0x2 /*
+ * Informational logs,
+ * MAC address, WWPN, WWNN
+ */
+#define QEDF_LOG_DISC 0x4 /* Init, discovery, rport */
+#define QEDF_LOG_LL2 0x8 /* LL2, VLAN logs */
+#define QEDF_LOG_CONN 0x10 /* Connection setup, cleanup */
+#define QEDF_LOG_EVT 0x20 /* Events, link, mtu */
+#define QEDF_LOG_TIMER 0x40 /* Timer events */
+#define QEDF_LOG_MP_REQ 0x80 /* Middle Path (MP) logs */
+#define QEDF_LOG_SCSI_TM 0x100 /* SCSI Aborts, Task Mgmt */
+#define QEDF_LOG_UNSOL 0x200 /* unsolicited event logs */
+#define QEDF_LOG_IO 0x400 /* scsi cmd, completion */
+#define QEDF_LOG_MQ 0x800 /* Multi Queue logs */
+#define QEDF_LOG_BSG 0x1000 /* BSG logs */
+#define QEDF_LOG_DEBUGFS 0x2000 /* debugFS logs */
+#define QEDF_LOG_LPORT 0x4000 /* lport logs */
+#define QEDF_LOG_ELS 0x8000 /* ELS logs */
+#define QEDF_LOG_NPIV 0x10000 /* NPIV logs */
+#define QEDF_LOG_SESS 0x20000 /* Conection setup, cleanup */
+#define QEDF_LOG_TID 0x80000 /*
+ * FW TID context acquire
+ * free
+ */
+#define QEDF_TRACK_TID 0x100000 /*
+ * Track TID state. To be
+ * enabled only at module load
+ * and not run-time.
+ */
+#define QEDF_TRACK_CMD_LIST 0x300000 /*
+ * Track active cmd list nodes,
+ * done with reference to TID,
+ * hence TRACK_TID also enabled.
+ */
+#define QEDF_LOG_NOTICE 0x40000000 /* Notice logs */
+#define QEDF_LOG_WARN 0x80000000 /* Warning logs */
+
+/* Debug context structure */
+struct qedf_dbg_ctx {
+ unsigned int host_no;
+ struct pci_dev *pdev;
+#ifdef CONFIG_DEBUG_FS
+ struct dentry *bdf_dentry;
+#endif
+};
+
+#define QEDF_ERR(pdev, fmt, ...) \
+ qedf_dbg_err(pdev, __func__, __LINE__, fmt, ## __VA_ARGS__)
+#define QEDF_WARN(pdev, fmt, ...) \
+ qedf_dbg_warn(pdev, __func__, __LINE__, fmt, ## __VA_ARGS__)
+#define QEDF_NOTICE(pdev, fmt, ...) \
+ qedf_dbg_notice(pdev, __func__, __LINE__, fmt, ## __VA_ARGS__)
+#define QEDF_INFO(pdev, level, fmt, ...) \
+ qedf_dbg_info(pdev, __func__, __LINE__, level, fmt, \
+ ## __VA_ARGS__)
+
+extern void qedf_dbg_err(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ const char *fmt, ...);
+extern void qedf_dbg_warn(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ const char *, ...);
+extern void qedf_dbg_notice(struct qedf_dbg_ctx *qedf, const char *func,
+ u32 line, const char *, ...);
+extern void qedf_dbg_info(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ u32 info, const char *fmt, ...);
+
+/* GRC Dump related defines */
+
+struct Scsi_Host;
+
+#define QEDF_UEVENT_CODE_GRCDUMP 0
+
+struct sysfs_bin_attrs {
+ char *name;
+ struct bin_attribute *attr;
+};
+
+extern int qedf_alloc_grc_dump_buf(uint8_t **buf, uint32_t len);
+extern void qedf_free_grc_dump_buf(uint8_t **buf);
+extern int qedf_get_grc_dump(struct qed_dev *cdev,
+ const struct qed_common_ops *common, uint8_t **buf,
+ uint32_t *grcsize);
+extern void qedf_uevent_emit(struct Scsi_Host *shost, u32 code, char *msg);
+extern int qedf_create_sysfs_attr(struct Scsi_Host *shost,
+ struct sysfs_bin_attrs *iter);
+extern void qedf_remove_sysfs_attr(struct Scsi_Host *shost,
+ struct sysfs_bin_attrs *iter);
+
+#ifdef CONFIG_DEBUG_FS
+/* DebugFS related code */
+struct qedf_list_of_funcs {
+ char *oper_str;
+ ssize_t (*oper_func)(struct qedf_dbg_ctx *qedf);
+};
+
+struct qedf_debugfs_ops {
+ char *name;
+ struct qedf_list_of_funcs *qedf_funcs;
+};
+
+#define qedf_dbg_fileops(drv, ops) \
+{ \
+ .owner = THIS_MODULE, \
+ .open = simple_open, \
+ .read = drv##_dbg_##ops##_cmd_read, \
+ .write = drv##_dbg_##ops##_cmd_write \
+}
+
+/* Used for debugfs sequential files */
+#define qedf_dbg_fileops_seq(drv, ops) \
+{ \
+ .owner = THIS_MODULE, \
+ .open = drv##_dbg_##ops##_open, \
+ .read = seq_read, \
+ .llseek = seq_lseek, \
+ .release = single_release, \
+}
+
+extern void qedf_dbg_host_init(struct qedf_dbg_ctx *qedf,
+ struct qedf_debugfs_ops *dops,
+ struct file_operations *fops);
+extern void qedf_dbg_host_exit(struct qedf_dbg_ctx *qedf);
+extern void qedf_dbg_init(char *drv_name);
+extern void qedf_dbg_exit(void);
+#endif /* CONFIG_DEBUG_FS */
+
+#endif /* _QEDF_DBG_H_ */
diff --git a/drivers/scsi/qedf/qedf_debugfs.c b/drivers/scsi/qedf/qedf_debugfs.c
new file mode 100644
index 0000000..e969bbe
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_debugfs.c
@@ -0,0 +1,460 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#ifdef CONFIG_DEBUG_FS
+
+#include <linux/uaccess.h>
+#include <linux/debugfs.h>
+#include <linux/module.h>
+
+#include "qedf.h"
+#include "qedf_dbg.h"
+
+static struct dentry *qedf_dbg_root;
+
+/**
+ * qedf_dbg_host_init - setup the debugfs file for the pf
+ * @pf: the pf that is starting up
+ **/
+void
+qedf_dbg_host_init(struct qedf_dbg_ctx *qedf,
+ struct qedf_debugfs_ops *dops,
+ struct file_operations *fops)
+{
+ char host_dirname[32];
+ struct dentry *file_dentry = NULL;
+
+ QEDF_INFO(qedf, QEDF_LOG_DEBUGFS, "Creating debugfs host node\n");
+ /* create pf dir */
+ sprintf(host_dirname, "host%u", qedf->host_no);
+ qedf->bdf_dentry = debugfs_create_dir(host_dirname, qedf_dbg_root);
+ if (!qedf->bdf_dentry)
+ return;
+
+ /* create debugfs files */
+ while (dops) {
+ if (!(dops->name))
+ break;
+
+ file_dentry = debugfs_create_file(dops->name, 0600,
+ qedf->bdf_dentry, qedf,
+ fops);
+ if (!file_dentry) {
+ QEDF_INFO(qedf, QEDF_LOG_DEBUGFS,
+ "Debugfs entry %s creation failed\n",
+ dops->name);
+ debugfs_remove_recursive(qedf->bdf_dentry);
+ return;
+ }
+ dops++;
+ fops++;
+ }
+}
+
+/**
+ * qedf_dbg_host_exit - clear out the pf's debugfs entries
+ * @pf: the pf that is stopping
+ **/
+void
+qedf_dbg_host_exit(struct qedf_dbg_ctx *qedf)
+{
+ QEDF_INFO(qedf, QEDF_LOG_DEBUGFS, "Destroying debugfs host "
+ "entry\n");
+ /* remove debugfs entries of this PF */
+ debugfs_remove_recursive(qedf->bdf_dentry);
+ qedf->bdf_dentry = NULL;
+}
+
+/**
+ * qedf_dbg_init - start up debugfs for the driver
+ **/
+void
+qedf_dbg_init(char *drv_name)
+{
+ QEDF_INFO(NULL, QEDF_LOG_DEBUGFS, "Creating debugfs root node\n");
+
+ /* create qed dir in root of debugfs. NULL means debugfs root */
+ qedf_dbg_root = debugfs_create_dir(drv_name, NULL);
+ if (!qedf_dbg_root)
+ QEDF_INFO(NULL, QEDF_LOG_DEBUGFS, "Init of debugfs "
+ "failed\n");
+}
+
+/**
+ * qedf_dbg_exit - clean out the driver's debugfs entries
+ **/
+void
+qedf_dbg_exit(void)
+{
+ QEDF_INFO(NULL, QEDF_LOG_DEBUGFS, "Destroying debugfs root "
+ "entry\n");
+
+ /* remove qed dir in root of debugfs */
+ debugfs_remove_recursive(qedf_dbg_root);
+ qedf_dbg_root = NULL;
+}
+
+struct qedf_debugfs_ops qedf_debugfs_ops[] = {
+ { "fp_int", NULL },
+ { "io_trace", NULL },
+ { "debug", NULL },
+ { "stop_io_on_error", NULL},
+ { "driver_stats", NULL},
+ { "clear_stats", NULL},
+ { "offload_stats", NULL},
+ /* This must be last */
+ { NULL, NULL }
+};
+
+DECLARE_PER_CPU(struct qedf_percpu_iothread_s, qedf_percpu_iothreads);
+
+static ssize_t
+qedf_dbg_fp_int_cmd_read(struct file *filp, char __user *buffer, size_t count,
+ loff_t *ppos)
+{
+ size_t cnt = 0;
+ int id;
+ struct qedf_fastpath *fp = NULL;
+ struct qedf_dbg_ctx *qedf_dbg =
+ (struct qedf_dbg_ctx *)filp->private_data;
+ struct qedf_ctx *qedf = container_of(qedf_dbg,
+ struct qedf_ctx, dbg_ctx);
+
+ QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
+
+ cnt = sprintf(buffer, "\nFastpath I/O completions\n\n");
+
+ for (id = 0; id < qedf->num_queues; id++) {
+ fp = &(qedf->fp_array[id]);
+ if (fp->sb_id == QEDF_SB_ID_NULL)
+ continue;
+ cnt += sprintf((buffer + cnt), "#%d: %lu\n", id,
+ fp->completions);
+ }
+
+ cnt = min_t(int, count, cnt - *ppos);
+ *ppos += cnt;
+ return cnt;
+}
+
+static ssize_t
+qedf_dbg_fp_int_cmd_write(struct file *filp, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ if (!count || *ppos)
+ return 0;
+
+ return count;
+}
+
+static ssize_t
+qedf_dbg_debug_cmd_read(struct file *filp, char __user *buffer, size_t count,
+ loff_t *ppos)
+{
+ int cnt;
+ struct qedf_dbg_ctx *qedf =
+ (struct qedf_dbg_ctx *)filp->private_data;
+
+ QEDF_INFO(qedf, QEDF_LOG_DEBUGFS, "entered\n");
+ cnt = sprintf(buffer, "debug mask = 0x%x\n", qedf_debug);
+
+ cnt = min_t(int, count, cnt - *ppos);
+ *ppos += cnt;
+ return cnt;
+}
+
+static ssize_t
+qedf_dbg_debug_cmd_write(struct file *filp, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ uint32_t val;
+ void *kern_buf;
+ int rval;
+ struct qedf_dbg_ctx *qedf =
+ (struct qedf_dbg_ctx *)filp->private_data;
+
+ if (!count || *ppos)
+ return 0;
+
+ kern_buf = memdup_user(buffer, count);
+ if (IS_ERR(kern_buf))
+ return PTR_ERR(kern_buf);
+
+ rval = kstrtouint(kern_buf, 10, &val);
+ kfree(kern_buf);
+ if (rval)
+ return rval;
+
+ if (val == 1)
+ qedf_debug = QEDF_DEFAULT_LOG_MASK;
+ else
+ qedf_debug = val;
+
+ QEDF_INFO(qedf, QEDF_LOG_DEBUGFS, "Setting debug=0x%x.\n", val);
+ return count;
+}
+
+static ssize_t
+qedf_dbg_stop_io_on_error_cmd_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ int cnt;
+ struct qedf_dbg_ctx *qedf_dbg =
+ (struct qedf_dbg_ctx *)filp->private_data;
+ struct qedf_ctx *qedf = container_of(qedf_dbg,
+ struct qedf_ctx, dbg_ctx);
+
+ QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
+ cnt = sprintf(buffer, "%s\n",
+ qedf->stop_io_on_error ? "true" : "false");
+
+ cnt = min_t(int, count, cnt - *ppos);
+ *ppos += cnt;
+ return cnt;
+}
+
+static ssize_t
+qedf_dbg_stop_io_on_error_cmd_write(struct file *filp,
+ const char __user *buffer, size_t count,
+ loff_t *ppos)
+{
+ void *kern_buf;
+ struct qedf_dbg_ctx *qedf_dbg =
+ (struct qedf_dbg_ctx *)filp->private_data;
+ struct qedf_ctx *qedf = container_of(qedf_dbg, struct qedf_ctx,
+ dbg_ctx);
+
+ QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
+
+ if (!count || *ppos)
+ return 0;
+
+ kern_buf = memdup_user(buffer, 6);
+ if (IS_ERR(kern_buf))
+ return PTR_ERR(kern_buf);
+
+ if (strncmp(kern_buf, "false", 5) == 0)
+ qedf->stop_io_on_error = false;
+ else if (strncmp(kern_buf, "true", 4) == 0)
+ qedf->stop_io_on_error = true;
+ else if (strncmp(kern_buf, "now", 3) == 0)
+ /* Trigger from user to stop all I/O on this host */
+ set_bit(QEDF_UNLOADING, &qedf->flags);
+
+ kfree(kern_buf);
+ return count;
+}
+
+static int
+qedf_io_trace_show(struct seq_file *s, void *unused)
+{
+ int i, idx = 0;
+ struct qedf_ctx *qedf = s->private;
+ struct qedf_dbg_ctx *qedf_dbg = &qedf->dbg_ctx;
+ struct qedf_io_log *io_log;
+ unsigned long flags;
+
+ if (!qedf_io_tracing) {
+ seq_puts(s, "I/O tracing not enabled.\n");
+ goto out;
+ }
+
+ QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
+
+ spin_lock_irqsave(&qedf->io_trace_lock, flags);
+ idx = qedf->io_trace_idx;
+ for (i = 0; i < QEDF_IO_TRACE_SIZE; i++) {
+ io_log = &qedf->io_trace_buf[idx];
+ seq_printf(s, "%d:", io_log->direction);
+ seq_printf(s, "0x%x:", io_log->task_id);
+ seq_printf(s, "0x%06x:", io_log->port_id);
+ seq_printf(s, "%d:", io_log->lun);
+ seq_printf(s, "0x%02x:", io_log->op);
+ seq_printf(s, "0x%02x%02x%02x%02x:", io_log->lba[0],
+ io_log->lba[1], io_log->lba[2], io_log->lba[3]);
+ seq_printf(s, "%d:", io_log->bufflen);
+ seq_printf(s, "%d:", io_log->sg_count);
+ seq_printf(s, "0x%08x:", io_log->result);
+ seq_printf(s, "%lu:", io_log->jiffies);
+ seq_printf(s, "%d:", io_log->refcount);
+ seq_printf(s, "%d:", io_log->req_cpu);
+ seq_printf(s, "%d:", io_log->int_cpu);
+ seq_printf(s, "%d:", io_log->rsp_cpu);
+ seq_printf(s, "%d\n", io_log->sge_type);
+
+ idx++;
+ if (idx == QEDF_IO_TRACE_SIZE)
+ idx = 0;
+ }
+ spin_unlock_irqrestore(&qedf->io_trace_lock, flags);
+
+out:
+ return 0;
+}
+
+static int
+qedf_dbg_io_trace_open(struct inode *inode, struct file *file)
+{
+ struct qedf_dbg_ctx *qedf_dbg = inode->i_private;
+ struct qedf_ctx *qedf = container_of(qedf_dbg,
+ struct qedf_ctx, dbg_ctx);
+
+ return single_open(file, qedf_io_trace_show, qedf);
+}
+
+static int
+qedf_driver_stats_show(struct seq_file *s, void *unused)
+{
+ struct qedf_ctx *qedf = s->private;
+ struct qedf_rport *fcport;
+ struct fc_rport_priv *rdata;
+
+ seq_printf(s, "cmg_mgr free io_reqs: %d\n",
+ atomic_read(&qedf->cmd_mgr->free_list_cnt));
+ seq_printf(s, "slow SGEs: %d\n", qedf->slow_sge_ios);
+ seq_printf(s, "single SGEs: %d\n", qedf->single_sge_ios);
+ seq_printf(s, "fast SGEs: %d\n\n", qedf->fast_sge_ios);
+
+ seq_puts(s, "Offloaded ports:\n\n");
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
+ rdata = fcport->rdata;
+ if (rdata == NULL)
+ continue;
+ seq_printf(s, "%06x: free_sqes: %d, num_active_ios: %d\n",
+ rdata->ids.port_id, atomic_read(&fcport->free_sqes),
+ atomic_read(&fcport->num_active_ios));
+ }
+ rcu_read_unlock();
+
+ return 0;
+}
+
+static int
+qedf_dbg_driver_stats_open(struct inode *inode, struct file *file)
+{
+ struct qedf_dbg_ctx *qedf_dbg = inode->i_private;
+ struct qedf_ctx *qedf = container_of(qedf_dbg,
+ struct qedf_ctx, dbg_ctx);
+
+ return single_open(file, qedf_driver_stats_show, qedf);
+}
+
+static ssize_t
+qedf_dbg_clear_stats_cmd_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ int cnt = 0;
+
+ /* Essentially a read stub */
+ cnt = min_t(int, count, cnt - *ppos);
+ *ppos += cnt;
+ return cnt;
+}
+
+static ssize_t
+qedf_dbg_clear_stats_cmd_write(struct file *filp,
+ const char __user *buffer, size_t count,
+ loff_t *ppos)
+{
+ struct qedf_dbg_ctx *qedf_dbg =
+ (struct qedf_dbg_ctx *)filp->private_data;
+ struct qedf_ctx *qedf = container_of(qedf_dbg, struct qedf_ctx,
+ dbg_ctx);
+
+ QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "Clearing stat counters.\n");
+
+ if (!count || *ppos)
+ return 0;
+
+ /* Clear stat counters exposed by 'stats' node */
+ qedf->slow_sge_ios = 0;
+ qedf->single_sge_ios = 0;
+ qedf->fast_sge_ios = 0;
+
+ return count;
+}
+
+static int
+qedf_offload_stats_show(struct seq_file *s, void *unused)
+{
+ struct qedf_ctx *qedf = s->private;
+ struct qed_fcoe_stats *fw_fcoe_stats;
+
+ fw_fcoe_stats = kmalloc(sizeof(struct qed_fcoe_stats), GFP_KERNEL);
+ if (!fw_fcoe_stats) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate memory for "
+ "fw_fcoe_stats.\n");
+ goto out;
+ }
+
+ /* Query firmware for offload stats */
+ qed_ops->get_stats(qedf->cdev, fw_fcoe_stats);
+
+ seq_printf(s, "fcoe_rx_byte_cnt=%llu\n"
+ "fcoe_rx_data_pkt_cnt=%llu\n"
+ "fcoe_rx_xfer_pkt_cnt=%llu\n"
+ "fcoe_rx_other_pkt_cnt=%llu\n"
+ "fcoe_silent_drop_pkt_cmdq_full_cnt=%u\n"
+ "fcoe_silent_drop_pkt_crc_error_cnt=%u\n"
+ "fcoe_silent_drop_pkt_task_invalid_cnt=%u\n"
+ "fcoe_silent_drop_total_pkt_cnt=%u\n"
+ "fcoe_silent_drop_pkt_rq_full_cnt=%u\n"
+ "fcoe_tx_byte_cnt=%llu\n"
+ "fcoe_tx_data_pkt_cnt=%llu\n"
+ "fcoe_tx_xfer_pkt_cnt=%llu\n"
+ "fcoe_tx_other_pkt_cnt=%llu\n",
+ fw_fcoe_stats->fcoe_rx_byte_cnt,
+ fw_fcoe_stats->fcoe_rx_data_pkt_cnt,
+ fw_fcoe_stats->fcoe_rx_xfer_pkt_cnt,
+ fw_fcoe_stats->fcoe_rx_other_pkt_cnt,
+ fw_fcoe_stats->fcoe_silent_drop_pkt_cmdq_full_cnt,
+ fw_fcoe_stats->fcoe_silent_drop_pkt_crc_error_cnt,
+ fw_fcoe_stats->fcoe_silent_drop_pkt_task_invalid_cnt,
+ fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt,
+ fw_fcoe_stats->fcoe_silent_drop_pkt_rq_full_cnt,
+ fw_fcoe_stats->fcoe_tx_byte_cnt,
+ fw_fcoe_stats->fcoe_tx_data_pkt_cnt,
+ fw_fcoe_stats->fcoe_tx_xfer_pkt_cnt,
+ fw_fcoe_stats->fcoe_tx_other_pkt_cnt);
+
+ kfree(fw_fcoe_stats);
+out:
+ return 0;
+}
+
+static int
+qedf_dbg_offload_stats_open(struct inode *inode, struct file *file)
+{
+ struct qedf_dbg_ctx *qedf_dbg = inode->i_private;
+ struct qedf_ctx *qedf = container_of(qedf_dbg,
+ struct qedf_ctx, dbg_ctx);
+
+ return single_open(file, qedf_offload_stats_show, qedf);
+}
+
+
+const struct file_operations qedf_dbg_fops[] = {
+ qedf_dbg_fileops(qedf, fp_int),
+ qedf_dbg_fileops_seq(qedf, io_trace),
+ qedf_dbg_fileops(qedf, debug),
+ qedf_dbg_fileops(qedf, stop_io_on_error),
+ qedf_dbg_fileops_seq(qedf, driver_stats),
+ qedf_dbg_fileops(qedf, clear_stats),
+ qedf_dbg_fileops_seq(qedf, offload_stats),
+ /* This must be last */
+ { NULL, NULL },
+};
+
+#else /* CONFIG_DEBUG_FS */
+void qedf_dbg_host_init(struct qedf_dbg_ctx *);
+void qedf_dbg_host_exit(struct qedf_dbg_ctx *);
+void qedf_dbg_init(char *);
+void qedf_dbg_exit(void);
+#endif /* CONFIG_DEBUG_FS */
diff --git a/drivers/scsi/qedf/qedf_els.c b/drivers/scsi/qedf/qedf_els.c
new file mode 100644
index 0000000..b6f7674
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_els.c
@@ -0,0 +1,983 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include "qedf.h"
+
+/* It's assumed that the lock is held when calling this function. */
+static int qedf_initiate_els(struct qedf_rport *fcport, unsigned int op,
+ void *data, uint32_t data_len,
+ void (*cb_func)(struct qedf_els_cb_arg *cb_arg),
+ struct qedf_els_cb_arg *cb_arg, uint32_t timer_msec)
+{
+ struct qedf_ctx *qedf = fcport->qedf;
+ struct fc_lport *lport = qedf->lport;
+ struct qedf_ioreq *els_req;
+ struct qedf_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr;
+ struct fcoe_task_context *task;
+ int rc = 0;
+ uint32_t did, sid;
+ uint16_t xid;
+ uint32_t start_time = jiffies / HZ;
+ uint32_t current_time;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Sending ELS\n");
+
+ rc = fc_remote_port_chkready(fcport->rport);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "els 0x%x: rport not ready\n", op);
+ rc = -EAGAIN;
+ goto els_err;
+ }
+ if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "els 0x%x: link is not ready\n",
+ op);
+ rc = -EAGAIN;
+ goto els_err;
+ }
+
+ if (!(test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))) {
+ QEDF_ERR(&(qedf->dbg_ctx), "els 0x%x: fcport not ready\n", op);
+ rc = -EINVAL;
+ goto els_err;
+ }
+
+retry_els:
+ els_req = qedf_alloc_cmd(fcport, QEDF_ELS);
+ if (!els_req) {
+ current_time = jiffies / HZ;
+ if ((current_time - start_time) > 10) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "els: Failed els 0x%x\n", op);
+ rc = -ENOMEM;
+ goto els_err;
+ }
+ mdelay(20 * USEC_PER_MSEC);
+ goto retry_els;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "initiate_els els_req = "
+ "0x%p cb_arg = %p xid = %x\n", els_req, cb_arg,
+ els_req->xid);
+ els_req->sc_cmd = NULL;
+ els_req->cmd_type = QEDF_ELS;
+ els_req->fcport = fcport;
+ els_req->cb_func = cb_func;
+ cb_arg->io_req = els_req;
+ cb_arg->op = op;
+ els_req->cb_arg = cb_arg;
+ els_req->data_xfer_len = data_len;
+
+ /* Record which cpu this request is associated with */
+ els_req->cpu = smp_processor_id();
+
+ mp_req = (struct qedf_mp_req *)&(els_req->mp_req);
+ rc = qedf_init_mp_req(els_req);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "ELS MP request init failed\n");
+ kref_put(&els_req->refcount, qedf_release_cmd);
+ goto els_err;
+ } else {
+ rc = 0;
+ }
+
+ /* Fill ELS Payload */
+ if ((op >= ELS_LS_RJT) && (op <= ELS_AUTH_ELS)) {
+ memcpy(mp_req->req_buf, data, data_len);
+ } else {
+ QEDF_ERR(&(qedf->dbg_ctx), "Invalid ELS op 0x%x\n", op);
+ els_req->cb_func = NULL;
+ els_req->cb_arg = NULL;
+ kref_put(&els_req->refcount, qedf_release_cmd);
+ rc = -EINVAL;
+ }
+
+ if (rc)
+ goto els_err;
+
+ /* Fill FC header */
+ fc_hdr = &(mp_req->req_fc_hdr);
+
+ did = fcport->rdata->ids.port_id;
+ sid = fcport->sid;
+
+ __fc_fill_fc_hdr(fc_hdr, FC_RCTL_ELS_REQ, sid, did,
+ FC_TYPE_ELS, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
+ FC_FC_SEQ_INIT, 0);
+
+ /* Obtain exchange id */
+ xid = els_req->xid;
+
+ /* Initialize task context for this IO request */
+ task = qedf_get_task_mem(&qedf->tasks, xid);
+ qedf_init_mp_task(els_req, task);
+
+ /* Put timer on original I/O request */
+ if (timer_msec)
+ qedf_cmd_timer_set(qedf, els_req, timer_msec);
+
+ qedf_add_to_sq(fcport, xid, 0, FCOE_TASK_TYPE_MIDPATH, 0);
+
+ /* Ring doorbell */
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Ringing doorbell for ELS "
+ "req\n");
+ qedf_ring_doorbell(fcport);
+els_err:
+ return rc;
+}
+
+void qedf_process_els_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *els_req)
+{
+ struct fcoe_task_context *task_ctx;
+ struct scsi_cmnd *sc_cmd;
+ uint16_t xid;
+ struct fcoe_cqe_midpath_info *mp_info;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Entered with xid = 0x%x"
+ " cmd_type = %d.\n", els_req->xid, els_req->cmd_type);
+
+ /* Kill the ELS timer */
+ cancel_delayed_work(&els_req->timeout_work);
+
+ xid = els_req->xid;
+ task_ctx = qedf_get_task_mem(&qedf->tasks, xid);
+ sc_cmd = els_req->sc_cmd;
+
+ /* Get ELS response length from CQE */
+ mp_info = &cqe->cqe_info.midpath_info;
+ els_req->mp_req.resp_len = mp_info->data_placement_size;
+
+ /* Parse ELS response */
+ if ((els_req->cb_func) && (els_req->cb_arg)) {
+ els_req->cb_func(els_req->cb_arg);
+ els_req->cb_arg = NULL;
+ }
+
+ kref_put(&els_req->refcount, qedf_release_cmd);
+}
+
+static void qedf_rrq_compl(struct qedf_els_cb_arg *cb_arg)
+{
+ struct qedf_ioreq *orig_io_req;
+ struct qedf_ioreq *rrq_req;
+ struct qedf_ctx *qedf;
+ int refcount;
+
+ rrq_req = cb_arg->io_req;
+ qedf = rrq_req->fcport->qedf;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Entered.\n");
+
+ orig_io_req = cb_arg->aborted_io_req;
+
+ if (!orig_io_req)
+ goto out_free;
+
+ if (rrq_req->event != QEDF_IOREQ_EV_ELS_TMO &&
+ rrq_req->event != QEDF_IOREQ_EV_ELS_ERR_DETECT)
+ cancel_delayed_work_sync(&orig_io_req->timeout_work);
+
+ refcount = atomic_read(&orig_io_req->refcount.refcount);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "rrq_compl: orig io = %p,"
+ " orig xid = 0x%x, rrq_xid = 0x%x, refcount=%d\n",
+ orig_io_req, orig_io_req->xid, rrq_req->xid, refcount);
+
+ /* This should return the aborted io_req to the command pool */
+ if (orig_io_req)
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+
+out_free:
+ kfree(cb_arg);
+}
+
+/* Assumes kref is already held by caller */
+int qedf_send_rrq(struct qedf_ioreq *aborted_io_req)
+{
+
+ struct fc_els_rrq rrq;
+ struct qedf_rport *fcport;
+ struct fc_lport *lport;
+ struct qedf_els_cb_arg *cb_arg = NULL;
+ struct qedf_ctx *qedf;
+ uint32_t sid;
+ uint32_t r_a_tov;
+ int rc;
+
+ if (!aborted_io_req) {
+ QEDF_ERR(NULL, "abort_io_req is NULL.\n");
+ return -EINVAL;
+ }
+
+ fcport = aborted_io_req->fcport;
+
+ /* Check that fcport is still offloaded */
+ if (!(test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))) {
+ QEDF_ERR(NULL, "fcport is no longer offloaded.\n");
+ return -EINVAL;
+ }
+
+ if (!fcport->qedf) {
+ QEDF_ERR(NULL, "fcport->qedf is NULL.\n");
+ return -EINVAL;
+ }
+
+ qedf = fcport->qedf;
+ lport = qedf->lport;
+ sid = fcport->sid;
+ r_a_tov = lport->r_a_tov;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Sending RRQ orig "
+ "io = %p, orig_xid = 0x%x\n", aborted_io_req,
+ aborted_io_req->xid);
+ memset(&rrq, 0, sizeof(rrq));
+
+ cb_arg = kzalloc(sizeof(struct qedf_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate cb_arg for "
+ "RRQ\n");
+ rc = -ENOMEM;
+ goto rrq_err;
+ }
+
+ cb_arg->aborted_io_req = aborted_io_req;
+
+ rrq.rrq_cmd = ELS_RRQ;
+ hton24(rrq.rrq_s_id, sid);
+ rrq.rrq_ox_id = htons(aborted_io_req->xid);
+ rrq.rrq_rx_id =
+ htons(aborted_io_req->task->tstorm_st_context.read_write.rx_id);
+
+ rc = qedf_initiate_els(fcport, ELS_RRQ, &rrq, sizeof(rrq),
+ qedf_rrq_compl, cb_arg, r_a_tov);
+
+rrq_err:
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "RRQ failed - release orig io "
+ "req 0x%x\n", aborted_io_req->xid);
+ kfree(cb_arg);
+ kref_put(&aborted_io_req->refcount, qedf_release_cmd);
+ }
+ return rc;
+}
+
+static void qedf_process_l2_frame_compl(struct qedf_rport *fcport,
+ unsigned char *buf,
+ u32 frame_len, u16 l2_oxid)
+{
+ struct fc_lport *lport = fcport->qedf->lport;
+ struct fc_frame_header *fh;
+ struct fc_frame *fp;
+ u32 payload_len;
+ u32 crc;
+
+ payload_len = frame_len - sizeof(struct fc_frame_header);
+
+ fp = fc_frame_alloc(lport, payload_len);
+ if (!fp) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx),
+ "fc_frame_alloc failure.\n");
+ return;
+ }
+
+ /* Copy FC Frame header and payload into the frame */
+ fh = (struct fc_frame_header *)fc_frame_header_get(fp);
+ memcpy(fh, buf, frame_len);
+
+ /* Set the OXID we return to what libfc used */
+ if (l2_oxid != FC_XID_UNKNOWN)
+ fh->fh_ox_id = htons(l2_oxid);
+
+ /* Setup header fields */
+ fh->fh_r_ctl = FC_RCTL_ELS_REP;
+ fh->fh_type = FC_TYPE_ELS;
+ /* Last sequence, end sequence */
+ fh->fh_f_ctl[0] = 0x98;
+ hton24(fh->fh_d_id, lport->port_id);
+ hton24(fh->fh_s_id, fcport->rdata->ids.port_id);
+ fh->fh_rx_id = 0xffff;
+
+ /* Set frame attributes */
+ crc = fcoe_fc_crc(fp);
+ fc_frame_init(fp);
+ fr_dev(fp) = lport;
+ fr_sof(fp) = FC_SOF_I3;
+ fr_eof(fp) = FC_EOF_T;
+ fr_crc(fp) = cpu_to_le32(~crc);
+
+ /* Send completed request to libfc */
+ fc_exch_recv(lport, fp);
+}
+
+/*
+ * In instances where an ELS command times out we may need to restart the
+ * rport by logging out and then logging back in.
+ */
+void qedf_restart_rport(struct qedf_rport *fcport)
+{
+ struct fc_lport *lport;
+ struct fc_rport_priv *rdata;
+ u32 port_id;
+
+ if (!fcport)
+ return;
+
+ rdata = fcport->rdata;
+ if (rdata) {
+ lport = fcport->qedf->lport;
+ port_id = rdata->ids.port_id;
+ QEDF_ERR(&(fcport->qedf->dbg_ctx),
+ "LOGO port_id=%x.\n", port_id);
+ mutex_lock(&lport->disc.disc_mutex);
+ fc_rport_logoff(rdata);
+ /* Recreate the rport and log back in */
+ rdata = fc_rport_create(lport, port_id);
+ if (rdata)
+ fc_rport_login(rdata);
+ mutex_unlock(&lport->disc.disc_mutex);
+ }
+}
+
+static void qedf_l2_els_compl(struct qedf_els_cb_arg *cb_arg)
+{
+ struct qedf_ioreq *els_req;
+ struct qedf_rport *fcport;
+ struct qedf_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr;
+ unsigned char *buf;
+ void *resp_buf;
+ u32 resp_len, hdr_len;
+ u16 l2_oxid;
+ int frame_len;
+
+ l2_oxid = cb_arg->l2_oxid;
+ els_req = cb_arg->io_req;
+
+ if (!els_req) {
+ QEDF_ERR(NULL, "els_req is NULL.\n");
+ goto free_arg;
+ }
+
+ /*
+ * If we are flushing the command just free the cb_arg as none of the
+ * response data will be valid.
+ */
+ if (els_req->event == QEDF_IOREQ_EV_ELS_FLUSH)
+ goto free_arg;
+
+ fcport = els_req->fcport;
+ mp_req = &(els_req->mp_req);
+ fc_hdr = &(mp_req->resp_fc_hdr);
+ resp_len = mp_req->resp_len;
+ resp_buf = mp_req->resp_buf;
+
+ /*
+ * If a middle path ELS command times out, don't try to return
+ * the command but rather do any internal cleanup and then libfc
+ * timeout the command and clean up its internal resources.
+ */
+ if (els_req->event == QEDF_IOREQ_EV_ELS_TMO) {
+ /*
+ * If ADISC times out, libfc will timeout the exchange and then
+ * try to send a PLOGI which will timeout since the session is
+ * still offloaded. Force libfc to logout the session which
+ * will offload the connection and allow the PLOGI response to
+ * flow over the LL2 path.
+ */
+ if (cb_arg->op == ELS_ADISC)
+ qedf_restart_rport(fcport);
+ return;
+ }
+
+ buf = kzalloc(QEDF_PAGE_SIZE, GFP_ATOMIC);
+ if (!buf) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx),
+ "Unable to alloc mp buf.\n");
+ goto free_arg;
+ }
+ hdr_len = sizeof(*fc_hdr);
+ if (hdr_len + resp_len > QEDF_PAGE_SIZE) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx), "resp_len is "
+ "beyond page size.\n");
+ goto free_buf;
+ }
+ memcpy(buf, fc_hdr, hdr_len);
+ memcpy(buf + hdr_len, resp_buf, resp_len);
+ frame_len = hdr_len + resp_len;
+
+ QEDF_INFO(&(fcport->qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Completing OX_ID 0x%x back to libfc.\n", l2_oxid);
+ qedf_process_l2_frame_compl(fcport, buf, frame_len, l2_oxid);
+
+free_buf:
+ kfree(buf);
+free_arg:
+ kfree(cb_arg);
+}
+
+int qedf_send_adisc(struct qedf_rport *fcport, struct fc_frame *fp)
+{
+ struct fc_els_adisc *adisc;
+ struct fc_frame_header *fh;
+ struct fc_lport *lport = fcport->qedf->lport;
+ struct qedf_els_cb_arg *cb_arg = NULL;
+ struct qedf_ctx *qedf;
+ uint32_t r_a_tov = lport->r_a_tov;
+ int rc;
+
+ qedf = fcport->qedf;
+ fh = fc_frame_header_get(fp);
+
+ cb_arg = kzalloc(sizeof(struct qedf_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate cb_arg for "
+ "ADISC\n");
+ rc = -ENOMEM;
+ goto adisc_err;
+ }
+ cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Sending ADISC ox_id=0x%x.\n", cb_arg->l2_oxid);
+
+ adisc = fc_frame_payload_get(fp, sizeof(*adisc));
+
+ rc = qedf_initiate_els(fcport, ELS_ADISC, adisc, sizeof(*adisc),
+ qedf_l2_els_compl, cb_arg, r_a_tov);
+
+adisc_err:
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "ADISC failed.\n");
+ kfree(cb_arg);
+ }
+ return rc;
+}
+
+static void qedf_srr_compl(struct qedf_els_cb_arg *cb_arg)
+{
+ struct qedf_ioreq *orig_io_req;
+ struct qedf_ioreq *srr_req;
+ struct qedf_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr, *fh;
+ struct fc_frame *fp;
+ unsigned char *buf;
+ void *resp_buf;
+ u32 resp_len, hdr_len;
+ struct fc_lport *lport;
+ struct qedf_ctx *qedf;
+ int refcount;
+ u8 opcode;
+
+ srr_req = cb_arg->io_req;
+ qedf = srr_req->fcport->qedf;
+ lport = qedf->lport;
+
+ orig_io_req = cb_arg->aborted_io_req;
+
+ if (!orig_io_req)
+ goto out_free;
+
+ clear_bit(QEDF_CMD_SRR_SENT, &orig_io_req->flags);
+
+ if (srr_req->event != QEDF_IOREQ_EV_ELS_TMO &&
+ srr_req->event != QEDF_IOREQ_EV_ELS_ERR_DETECT)
+ cancel_delayed_work_sync(&orig_io_req->timeout_work);
+
+ refcount = atomic_read(&orig_io_req->refcount.refcount);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Entered: orig_io=%p,"
+ " orig_io_xid=0x%x, rec_xid=0x%x, refcount=%d\n",
+ orig_io_req, orig_io_req->xid, srr_req->xid, refcount);
+
+ /* If a SRR times out, simply free resources */
+ if (srr_req->event == QEDF_IOREQ_EV_ELS_TMO)
+ goto out_free;
+
+ /* Normalize response data into struct fc_frame */
+ mp_req = &(srr_req->mp_req);
+ fc_hdr = &(mp_req->resp_fc_hdr);
+ resp_len = mp_req->resp_len;
+ resp_buf = mp_req->resp_buf;
+ hdr_len = sizeof(*fc_hdr);
+
+ buf = kzalloc(QEDF_PAGE_SIZE, GFP_ATOMIC);
+ if (!buf) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "Unable to alloc mp buf.\n");
+ goto out_free;
+ }
+
+ memcpy(buf, fc_hdr, hdr_len);
+ memcpy(buf + hdr_len, resp_buf, resp_len);
+
+ fp = fc_frame_alloc(lport, resp_len);
+ if (!fp) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "fc_frame_alloc failure.\n");
+ goto out_buf;
+ }
+
+ /* Copy FC Frame header and payload into the frame */
+ fh = (struct fc_frame_header *)fc_frame_header_get(fp);
+ memcpy(fh, buf, hdr_len + resp_len);
+
+ opcode = fc_frame_payload_op(fp);
+ switch (opcode) {
+ case ELS_LS_ACC:
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "SRR success.\n");
+ break;
+ case ELS_LS_RJT:
+ QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_ELS,
+ "SRR rejected.\n");
+ qedf_initiate_abts(orig_io_req, true);
+ break;
+ }
+
+ fc_frame_free(fp);
+out_buf:
+ kfree(buf);
+out_free:
+ /* Put reference for original command since SRR completed */
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+ kfree(cb_arg);
+}
+
+static int qedf_send_srr(struct qedf_ioreq *orig_io_req, u32 offset, u8 r_ctl)
+{
+ struct fcp_srr srr;
+ struct qedf_ctx *qedf;
+ struct qedf_rport *fcport;
+ struct fc_lport *lport;
+ struct qedf_els_cb_arg *cb_arg = NULL;
+ u32 sid, r_a_tov;
+ int rc;
+
+ if (!orig_io_req) {
+ QEDF_ERR(NULL, "orig_io_req is NULL.\n");
+ return -EINVAL;
+ }
+
+ fcport = orig_io_req->fcport;
+
+ /* Check that fcport is still offloaded */
+ if (!(test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))) {
+ QEDF_ERR(NULL, "fcport is no longer offloaded.\n");
+ return -EINVAL;
+ }
+
+ if (!fcport->qedf) {
+ QEDF_ERR(NULL, "fcport->qedf is NULL.\n");
+ return -EINVAL;
+ }
+
+ /* Take reference until SRR command completion */
+ kref_get(&orig_io_req->refcount);
+
+ qedf = fcport->qedf;
+ lport = qedf->lport;
+ sid = fcport->sid;
+ r_a_tov = lport->r_a_tov;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Sending SRR orig_io=%p, "
+ "orig_xid=0x%x\n", orig_io_req, orig_io_req->xid);
+ memset(&srr, 0, sizeof(srr));
+
+ cb_arg = kzalloc(sizeof(struct qedf_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate cb_arg for "
+ "SRR\n");
+ rc = -ENOMEM;
+ goto srr_err;
+ }
+
+ cb_arg->aborted_io_req = orig_io_req;
+
+ srr.srr_op = ELS_SRR;
+ srr.srr_ox_id = htons(orig_io_req->xid);
+ srr.srr_rx_id = htons(orig_io_req->rx_id);
+ srr.srr_rel_off = htonl(offset);
+ srr.srr_r_ctl = r_ctl;
+
+ rc = qedf_initiate_els(fcport, ELS_SRR, &srr, sizeof(srr),
+ qedf_srr_compl, cb_arg, r_a_tov);
+
+srr_err:
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "SRR failed - release orig_io_req"
+ "=0x%x\n", orig_io_req->xid);
+ kfree(cb_arg);
+ /* If we fail to queue SRR, send ABTS to orig_io */
+ qedf_initiate_abts(orig_io_req, true);
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+ } else
+ /* Tell other threads that SRR is in progress */
+ set_bit(QEDF_CMD_SRR_SENT, &orig_io_req->flags);
+
+ return rc;
+}
+
+static void qedf_initiate_seq_cleanup(struct qedf_ioreq *orig_io_req,
+ u32 offset, u8 r_ctl)
+{
+ struct qedf_rport *fcport;
+ unsigned long flags;
+ struct qedf_els_cb_arg *cb_arg;
+
+ fcport = orig_io_req->fcport;
+
+ QEDF_INFO(&(fcport->qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Doing sequence cleanup for xid=0x%x offset=%u.\n",
+ orig_io_req->xid, offset);
+
+ cb_arg = kzalloc(sizeof(struct qedf_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx), "Unable to allocate cb_arg "
+ "for sequence cleanup\n");
+ return;
+ }
+
+ /* Get reference for cleanup request */
+ kref_get(&orig_io_req->refcount);
+
+ orig_io_req->cmd_type = QEDF_SEQ_CLEANUP;
+ cb_arg->offset = offset;
+ cb_arg->r_ctl = r_ctl;
+ orig_io_req->cb_arg = cb_arg;
+
+ qedf_cmd_timer_set(fcport->qedf, orig_io_req,
+ QEDF_CLEANUP_TIMEOUT * HZ);
+
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+
+ qedf_add_to_sq(fcport, orig_io_req->xid, 0,
+ FCOE_TASK_TYPE_SEQUENCE_CLEANUP, offset);
+ qedf_ring_doorbell(fcport);
+
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+}
+
+void qedf_process_seq_cleanup_compl(struct qedf_ctx *qedf,
+ struct fcoe_cqe *cqe, struct qedf_ioreq *io_req)
+{
+ int rc;
+ struct qedf_els_cb_arg *cb_arg;
+
+ cb_arg = io_req->cb_arg;
+
+ /* If we timed out just free resources */
+ if (io_req->event == QEDF_IOREQ_EV_ELS_TMO || !cqe)
+ goto free;
+
+ /* Kill the timer we put on the request */
+ cancel_delayed_work_sync(&io_req->timeout_work);
+
+ rc = qedf_send_srr(io_req, cb_arg->offset, cb_arg->r_ctl);
+ if (rc)
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to send SRR, I/O will "
+ "abort, xid=0x%x.\n", io_req->xid);
+free:
+ kfree(cb_arg);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+}
+
+static bool qedf_requeue_io_req(struct qedf_ioreq *orig_io_req)
+{
+ struct qedf_rport *fcport;
+ struct qedf_ioreq *new_io_req;
+ unsigned long flags;
+ bool rc = false;
+
+ fcport = orig_io_req->fcport;
+ if (!fcport) {
+ QEDF_ERR(NULL, "fcport is NULL.\n");
+ goto out;
+ }
+
+ if (!orig_io_req->sc_cmd) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx), "sc_cmd is NULL for "
+ "xid=0x%x.\n", orig_io_req->xid);
+ goto out;
+ }
+
+ new_io_req = qedf_alloc_cmd(fcport, QEDF_SCSI_CMD);
+ if (!new_io_req) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx), "Could not allocate new "
+ "io_req.\n");
+ goto out;
+ }
+
+ new_io_req->sc_cmd = orig_io_req->sc_cmd;
+
+ /*
+ * This keeps the sc_cmd struct from being returned to the tape
+ * driver and being requeued twice. We do need to put a reference
+ * for the original I/O request since we will not do a SCSI completion
+ * for it.
+ */
+ orig_io_req->sc_cmd = NULL;
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+
+ /* kref for new command released in qedf_post_io_req on error */
+ if (qedf_post_io_req(fcport, new_io_req)) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx), "Unable to post io_req\n");
+ /* Return SQE to pool */
+ atomic_inc(&fcport->free_sqes);
+ } else {
+ QEDF_INFO(&(fcport->qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Reissued SCSI command from orig_xid=0x%x on "
+ "new_xid=0x%x.\n", orig_io_req->xid, new_io_req->xid);
+ /*
+ * Abort the original I/O but do not return SCSI command as
+ * it has been reissued on another OX_ID.
+ */
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+ qedf_initiate_abts(orig_io_req, false);
+ goto out;
+ }
+
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+out:
+ return rc;
+}
+
+
+static void qedf_rec_compl(struct qedf_els_cb_arg *cb_arg)
+{
+ struct qedf_ioreq *orig_io_req;
+ struct qedf_ioreq *rec_req;
+ struct qedf_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr, *fh;
+ struct fc_frame *fp;
+ unsigned char *buf;
+ void *resp_buf;
+ u32 resp_len, hdr_len;
+ struct fc_lport *lport;
+ struct qedf_ctx *qedf;
+ int refcount;
+ enum fc_rctl r_ctl;
+ struct fc_els_ls_rjt *rjt;
+ struct fc_els_rec_acc *acc;
+ u8 opcode;
+ u32 offset, e_stat;
+ struct scsi_cmnd *sc_cmd;
+ bool srr_needed = false;
+
+ rec_req = cb_arg->io_req;
+ qedf = rec_req->fcport->qedf;
+ lport = qedf->lport;
+
+ orig_io_req = cb_arg->aborted_io_req;
+
+ if (!orig_io_req)
+ goto out_free;
+
+ if (rec_req->event != QEDF_IOREQ_EV_ELS_TMO &&
+ rec_req->event != QEDF_IOREQ_EV_ELS_ERR_DETECT)
+ cancel_delayed_work_sync(&orig_io_req->timeout_work);
+
+ refcount = atomic_read(&orig_io_req->refcount.refcount);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Entered: orig_io=%p,"
+ " orig_io_xid=0x%x, rec_xid=0x%x, refcount=%d\n",
+ orig_io_req, orig_io_req->xid, rec_req->xid, refcount);
+
+ /* If a REC times out, free resources */
+ if (rec_req->event == QEDF_IOREQ_EV_ELS_TMO)
+ goto out_free;
+
+ /* Normalize response data into struct fc_frame */
+ mp_req = &(rec_req->mp_req);
+ fc_hdr = &(mp_req->resp_fc_hdr);
+ resp_len = mp_req->resp_len;
+ acc = resp_buf = mp_req->resp_buf;
+ hdr_len = sizeof(*fc_hdr);
+
+ buf = kzalloc(QEDF_PAGE_SIZE, GFP_ATOMIC);
+ if (!buf) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "Unable to alloc mp buf.\n");
+ goto out_free;
+ }
+
+ memcpy(buf, fc_hdr, hdr_len);
+ memcpy(buf + hdr_len, resp_buf, resp_len);
+
+ fp = fc_frame_alloc(lport, resp_len);
+ if (!fp) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "fc_frame_alloc failure.\n");
+ goto out_buf;
+ }
+
+ /* Copy FC Frame header and payload into the frame */
+ fh = (struct fc_frame_header *)fc_frame_header_get(fp);
+ memcpy(fh, buf, hdr_len + resp_len);
+
+ opcode = fc_frame_payload_op(fp);
+
+ if (opcode == ELS_LS_RJT) {
+ rjt = fc_frame_payload_get(fp, sizeof(*rjt));
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Received LS_RJT for REC: er_reason=0x%x, "
+ "er_explan=0x%x.\n", rjt->er_reason, rjt->er_explan);
+ /*
+ * The following response(s) mean that we need to reissue the
+ * request on another exchange. We need to do this without
+ * informing the upper layers lest it cause an application
+ * error.
+ */
+ if ((rjt->er_reason == ELS_RJT_LOGIC ||
+ rjt->er_reason == ELS_RJT_UNAB) &&
+ rjt->er_explan == ELS_EXPL_OXID_RXID) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Handle CMD LOST case.\n");
+ qedf_requeue_io_req(orig_io_req);
+ }
+ } else if (opcode == ELS_LS_ACC) {
+ offset = ntohl(acc->reca_fc4value);
+ e_stat = ntohl(acc->reca_e_stat);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Received LS_ACC for REC: offset=0x%x, e_stat=0x%x.\n",
+ offset, e_stat);
+ if (e_stat & ESB_ST_SEQ_INIT) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Target has the seq init\n");
+ goto out_free_frame;
+ }
+ sc_cmd = orig_io_req->sc_cmd;
+ if (!sc_cmd) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "sc_cmd is NULL for xid=0x%x.\n",
+ orig_io_req->xid);
+ goto out_free_frame;
+ }
+ /* SCSI write case */
+ if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) {
+ if (offset == orig_io_req->data_xfer_len) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "WRITE - response lost.\n");
+ r_ctl = FC_RCTL_DD_CMD_STATUS;
+ srr_needed = true;
+ offset = 0;
+ } else {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "WRITE - XFER_RDY/DATA lost.\n");
+ r_ctl = FC_RCTL_DD_DATA_DESC;
+ /* Use data from warning CQE instead of REC */
+ offset = orig_io_req->tx_buf_off;
+ }
+ /* SCSI read case */
+ } else {
+ if (orig_io_req->rx_buf_off ==
+ orig_io_req->data_xfer_len) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "READ - response lost.\n");
+ srr_needed = true;
+ r_ctl = FC_RCTL_DD_CMD_STATUS;
+ offset = 0;
+ } else {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "READ - DATA lost.\n");
+ /*
+ * For read case we always set the offset to 0
+ * for sequence recovery task.
+ */
+ offset = 0;
+ r_ctl = FC_RCTL_DD_SOL_DATA;
+ }
+ }
+
+ if (srr_needed)
+ qedf_send_srr(orig_io_req, offset, r_ctl);
+ else
+ qedf_initiate_seq_cleanup(orig_io_req, offset, r_ctl);
+ }
+
+out_free_frame:
+ fc_frame_free(fp);
+out_buf:
+ kfree(buf);
+out_free:
+ /* Put reference for original command since REC completed */
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+ kfree(cb_arg);
+}
+
+/* Assumes kref is already held by caller */
+int qedf_send_rec(struct qedf_ioreq *orig_io_req)
+{
+
+ struct fc_els_rec rec;
+ struct qedf_rport *fcport;
+ struct fc_lport *lport;
+ struct qedf_els_cb_arg *cb_arg = NULL;
+ struct qedf_ctx *qedf;
+ uint32_t sid;
+ uint32_t r_a_tov;
+ int rc;
+
+ if (!orig_io_req) {
+ QEDF_ERR(NULL, "orig_io_req is NULL.\n");
+ return -EINVAL;
+ }
+
+ fcport = orig_io_req->fcport;
+
+ /* Check that fcport is still offloaded */
+ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ QEDF_ERR(NULL, "fcport is no longer offloaded.\n");
+ return -EINVAL;
+ }
+
+ if (!fcport->qedf) {
+ QEDF_ERR(NULL, "fcport->qedf is NULL.\n");
+ return -EINVAL;
+ }
+
+ /* Take reference until REC command completion */
+ kref_get(&orig_io_req->refcount);
+
+ qedf = fcport->qedf;
+ lport = qedf->lport;
+ sid = fcport->sid;
+ r_a_tov = lport->r_a_tov;
+
+ memset(&rec, 0, sizeof(rec));
+
+ cb_arg = kzalloc(sizeof(struct qedf_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate cb_arg for "
+ "REC\n");
+ rc = -ENOMEM;
+ goto rec_err;
+ }
+
+ cb_arg->aborted_io_req = orig_io_req;
+
+ rec.rec_cmd = ELS_REC;
+ hton24(rec.rec_s_id, sid);
+ rec.rec_ox_id = htons(orig_io_req->xid);
+ rec.rec_rx_id =
+ htons(orig_io_req->task->tstorm_st_context.read_write.rx_id);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Sending REC orig_io=%p, "
+ "orig_xid=0x%x rx_id=0x%x\n", orig_io_req,
+ orig_io_req->xid, rec.rec_rx_id);
+ rc = qedf_initiate_els(fcport, ELS_REC, &rec, sizeof(rec),
+ qedf_rec_compl, cb_arg, r_a_tov);
+
+rec_err:
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "REC failed - release orig_io_req"
+ "=0x%x\n", orig_io_req->xid);
+ kfree(cb_arg);
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+ }
+ return rc;
+}
diff --git a/drivers/scsi/qedf/qedf_fip.c b/drivers/scsi/qedf/qedf_fip.c
new file mode 100644
index 0000000..868d423
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_fip.c
@@ -0,0 +1,269 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include "qedf.h"
+
+extern const struct qed_fcoe_ops *qed_ops;
+/*
+ * FIP VLAN functions that will eventually move to libfcoe.
+ */
+
+void qedf_fcoe_send_vlan_req(struct qedf_ctx *qedf)
+{
+ struct sk_buff *skb;
+ char *eth_fr;
+ int fr_len;
+ struct fip_vlan *vlan;
+#define MY_FIP_ALL_FCF_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 2 })
+ static u8 my_fcoe_all_fcfs[ETH_ALEN] = MY_FIP_ALL_FCF_MACS;
+
+ skb = dev_alloc_skb(sizeof(struct fip_vlan));
+ if (!skb)
+ return;
+
+ fr_len = sizeof(*vlan);
+ eth_fr = (char *)skb->data;
+ vlan = (struct fip_vlan *)eth_fr;
+
+ memset(vlan, 0, sizeof(*vlan));
+ ether_addr_copy(vlan->eth.h_source, qedf->mac);
+ ether_addr_copy(vlan->eth.h_dest, my_fcoe_all_fcfs);
+ vlan->eth.h_proto = htons(ETH_P_FIP);
+
+ vlan->fip.fip_ver = FIP_VER_ENCAPS(FIP_VER);
+ vlan->fip.fip_op = htons(FIP_OP_VLAN);
+ vlan->fip.fip_subcode = FIP_SC_VL_REQ;
+ vlan->fip.fip_dl_len = htons(sizeof(vlan->desc) / FIP_BPW);
+
+ vlan->desc.mac.fd_desc.fip_dtype = FIP_DT_MAC;
+ vlan->desc.mac.fd_desc.fip_dlen = sizeof(vlan->desc.mac) / FIP_BPW;
+ ether_addr_copy(vlan->desc.mac.fd_mac, qedf->mac);
+
+ vlan->desc.wwnn.fd_desc.fip_dtype = FIP_DT_NAME;
+ vlan->desc.wwnn.fd_desc.fip_dlen = sizeof(vlan->desc.wwnn) / FIP_BPW;
+ put_unaligned_be64(qedf->lport->wwnn, &vlan->desc.wwnn.fd_wwn);
+
+ skb_put(skb, sizeof(*vlan));
+ skb->protocol = htons(ETH_P_FIP);
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Sending FIP VLAN "
+ "request.");
+
+ if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Cannot send vlan request "
+ "because link is not up.\n");
+
+ kfree_skb(skb);
+ return;
+ }
+ qed_ops->ll2->start_xmit(qedf->cdev, skb);
+}
+
+static void qedf_fcoe_process_vlan_resp(struct qedf_ctx *qedf,
+ struct sk_buff *skb)
+{
+ struct fip_header *fiph;
+ struct fip_desc *desc;
+ u16 vid = 0;
+ ssize_t rlen;
+ size_t dlen;
+
+ fiph = (struct fip_header *)(((void *)skb->data) + 2 * ETH_ALEN + 2);
+
+ rlen = ntohs(fiph->fip_dl_len) * 4;
+ desc = (struct fip_desc *)(fiph + 1);
+ while (rlen > 0) {
+ dlen = desc->fip_dlen * FIP_BPW;
+ switch (desc->fip_dtype) {
+ case FIP_DT_VLAN:
+ vid = ntohs(((struct fip_vlan_desc *)desc)->fd_vlan);
+ break;
+ }
+ desc = (struct fip_desc *)((char *)desc + dlen);
+ rlen -= dlen;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "VLAN response, "
+ "vid=0x%x.\n", vid);
+
+ if (vid > 0 && qedf->vlan_id != vid) {
+ qedf_set_vlan_id(qedf, vid);
+
+ /* Inform waiter that it's ok to call fcoe_ctlr_link up() */
+ complete(&qedf->fipvlan_compl);
+ }
+}
+
+void qedf_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
+{
+ struct qedf_ctx *qedf = container_of(fip, struct qedf_ctx, ctlr);
+ struct ethhdr *eth_hdr;
+ struct vlan_ethhdr *vlan_hdr;
+ struct fip_header *fiph;
+ u16 op, vlan_tci = 0;
+ u8 sub;
+
+ if (!test_bit(QEDF_LL2_STARTED, &qedf->flags)) {
+ QEDF_WARN(&(qedf->dbg_ctx), "LL2 not started\n");
+ kfree_skb(skb);
+ return;
+ }
+
+ fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2);
+ eth_hdr = (struct ethhdr *)skb_mac_header(skb);
+ op = ntohs(fiph->fip_op);
+ sub = fiph->fip_subcode;
+
+ if (!qedf->vlan_hw_insert) {
+ vlan_hdr = (struct vlan_ethhdr *)skb_push(skb, sizeof(*vlan_hdr)
+ - sizeof(*eth_hdr));
+ memcpy(vlan_hdr, eth_hdr, 2 * ETH_ALEN);
+ vlan_hdr->h_vlan_proto = htons(ETH_P_8021Q);
+ vlan_hdr->h_vlan_encapsulated_proto = eth_hdr->h_proto;
+ vlan_hdr->h_vlan_TCI = vlan_tci = htons(qedf->vlan_id);
+ }
+
+ /* Update eth_hdr since we added a VLAN tag */
+ eth_hdr = (struct ethhdr *)skb_mac_header(skb);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FIP frame send: "
+ "dest=%pM op=%x sub=%x vlan=%04x.", eth_hdr->h_dest, op, sub,
+ ntohs(vlan_tci));
+ if (qedf_dump_frames)
+ print_hex_dump(KERN_WARNING, "fip ", DUMP_PREFIX_OFFSET, 16, 1,
+ skb->data, skb->len, false);
+
+ qed_ops->ll2->start_xmit(qedf->cdev, skb);
+}
+
+/* Process incoming FIP frames. */
+void qedf_fip_recv(struct qedf_ctx *qedf, struct sk_buff *skb)
+{
+ struct ethhdr *eth_hdr;
+ struct fip_header *fiph;
+ struct fip_desc *desc;
+ struct fip_mac_desc *mp;
+ struct fip_wwn_desc *wp;
+ struct fip_vn_desc *vp;
+ size_t rlen, dlen;
+ uint32_t cvl_port_id;
+ __u8 cvl_mac[ETH_ALEN];
+ u16 op;
+ u8 sub;
+
+ eth_hdr = (struct ethhdr *)skb_mac_header(skb);
+ fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2);
+ op = ntohs(fiph->fip_op);
+ sub = fiph->fip_subcode;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FIP frame received: "
+ "skb=%p fiph=%p source=%pM op=%x sub=%x", skb, fiph,
+ eth_hdr->h_source, op, sub);
+ if (qedf_dump_frames)
+ print_hex_dump(KERN_WARNING, "fip ", DUMP_PREFIX_OFFSET, 16, 1,
+ skb->data, skb->len, false);
+
+ /* Handle FIP VLAN resp in the driver */
+ if (op == FIP_OP_VLAN && sub == FIP_SC_VL_NOTE) {
+ qedf_fcoe_process_vlan_resp(qedf, skb);
+ qedf->vlan_hw_insert = 0;
+ kfree_skb(skb);
+ } else if (op == FIP_OP_CTRL && sub == FIP_SC_CLR_VLINK) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Clear virtual "
+ "link received.\n");
+
+ /* Check that an FCF has been selected by fcoe */
+ if (qedf->ctlr.sel_fcf == NULL) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Dropping CVL since FCF has not been selected "
+ "yet.");
+ return;
+ }
+
+ cvl_port_id = 0;
+ memset(cvl_mac, 0, ETH_ALEN);
+ /*
+ * We need to loop through the CVL descriptors to determine
+ * if we want to reset the fcoe link
+ */
+ rlen = ntohs(fiph->fip_dl_len) * FIP_BPW;
+ desc = (struct fip_desc *)(fiph + 1);
+ while (rlen >= sizeof(*desc)) {
+ dlen = desc->fip_dlen * FIP_BPW;
+ switch (desc->fip_dtype) {
+ case FIP_DT_MAC:
+ mp = (struct fip_mac_desc *)desc;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "fd_mac=%pM.\n", __func__, mp->fd_mac);
+ ether_addr_copy(cvl_mac, mp->fd_mac);
+ break;
+ case FIP_DT_NAME:
+ wp = (struct fip_wwn_desc *)desc;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "fc_wwpn=%016llx.\n",
+ get_unaligned_be64(&wp->fd_wwn));
+ break;
+ case FIP_DT_VN_ID:
+ vp = (struct fip_vn_desc *)desc;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "fd_fc_id=%x.\n", ntoh24(vp->fd_fc_id));
+ cvl_port_id = ntoh24(vp->fd_fc_id);
+ break;
+ default:
+ /* Ignore anything else */
+ break;
+ }
+ desc = (struct fip_desc *)((char *)desc + dlen);
+ rlen -= dlen;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "cvl_port_id=%06x cvl_mac=%pM.\n", cvl_port_id,
+ cvl_mac);
+ if (cvl_port_id == qedf->lport->port_id &&
+ ether_addr_equal(cvl_mac,
+ qedf->ctlr.sel_fcf->fcf_mac)) {
+ fcoe_ctlr_link_down(&qedf->ctlr);
+ qedf_wait_for_upload(qedf);
+ fcoe_ctlr_link_up(&qedf->ctlr);
+ }
+ kfree_skb(skb);
+ } else {
+ /* Everything else is handled by libfcoe */
+ __skb_pull(skb, ETH_HLEN);
+ fcoe_ctlr_recv(&qedf->ctlr, skb);
+ }
+}
+
+void qedf_update_src_mac(struct fc_lport *lport, u8 *addr)
+{
+ struct qedf_ctx *qedf = lport_priv(lport);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Setting data_src_addr=%pM.\n", addr);
+ ether_addr_copy(qedf->data_src_addr, addr);
+}
+
+u8 *qedf_get_src_mac(struct fc_lport *lport)
+{
+ u8 mac[ETH_ALEN];
+ u8 port_id[3];
+ struct qedf_ctx *qedf = lport_priv(lport);
+
+ /* We need to use the lport port_id to create the data_src_addr */
+ if (is_zero_ether_addr(qedf->data_src_addr)) {
+ hton24(port_id, lport->port_id);
+ fc_fcoe_set_mac(mac, port_id);
+ qedf->ctlr.update_mac(lport, mac);
+ }
+ return qedf->data_src_addr;
+}
diff --git a/drivers/scsi/qedf/qedf_hsi.h b/drivers/scsi/qedf/qedf_hsi.h
new file mode 100644
index 0000000..953aa5e
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_hsi.h
@@ -0,0 +1,427 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#ifndef __QEDF_HSI__
+#define __QEDF_HSI__
+/*
+ * Add include to common target
+ */
+#include <linux/qed/common_hsi.h>
+
+/*
+ * Add include to common storage target
+ */
+#include <linux/qed/storage_common.h>
+
+/*
+ * Add include to common fcoe target for both eCore and protocol driver
+ */
+#include <linux/qed/fcoe_common.h>
+
+
+/*
+ * FCoE CQ element ABTS information
+ */
+struct fcoe_abts_info {
+ u8 r_ctl /* R_CTL in the ABTS response frame */;
+ u8 reserved0;
+ __le16 rx_id;
+ __le32 reserved2[2];
+ __le32 fc_payload[3] /* ABTS FC payload response frame */;
+};
+
+
+/*
+ * FCoE class type
+ */
+enum fcoe_class_type {
+ FCOE_TASK_CLASS_TYPE_3,
+ FCOE_TASK_CLASS_TYPE_2,
+ MAX_FCOE_CLASS_TYPE
+};
+
+
+/*
+ * FCoE CMDQ element control information
+ */
+struct fcoe_cmdqe_control {
+ __le16 conn_id;
+ u8 num_additional_cmdqes;
+ u8 cmdType;
+ /* true for ABTS request cmdqe. used in Target mode */
+#define FCOE_CMDQE_CONTROL_ABTSREQCMD_MASK 0x1
+#define FCOE_CMDQE_CONTROL_ABTSREQCMD_SHIFT 0
+#define FCOE_CMDQE_CONTROL_RESERVED1_MASK 0x7F
+#define FCOE_CMDQE_CONTROL_RESERVED1_SHIFT 1
+ u8 reserved2[4];
+};
+
+/*
+ * FCoE control + payload CMDQ element
+ */
+struct fcoe_cmdqe {
+ struct fcoe_cmdqe_control hdr;
+ u8 fc_header[24];
+ __le32 fcp_cmd_payload[8];
+};
+
+
+
+/*
+ * FCP RSP flags
+ */
+struct fcoe_fcp_rsp_flags {
+ u8 flags;
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID_SHIFT 0
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID_SHIFT 1
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER_SHIFT 2
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER_SHIFT 3
+#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ_SHIFT 4
+#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS_MASK 0x7
+#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS_SHIFT 5
+};
+
+/*
+ * FCoE CQ element response information
+ */
+struct fcoe_cqe_rsp_info {
+ struct fcoe_fcp_rsp_flags rsp_flags;
+ u8 scsi_status_code;
+ __le16 retry_delay_timer;
+ __le32 fcp_resid;
+ __le32 fcp_sns_len;
+ __le32 fcp_rsp_len;
+ __le16 rx_id;
+ u8 fw_error_flags;
+#define FCOE_CQE_RSP_INFO_FW_UNDERRUN_MASK 0x1 /* FW detected underrun */
+#define FCOE_CQE_RSP_INFO_FW_UNDERRUN_SHIFT 0
+#define FCOE_CQE_RSP_INFO_RESREVED_MASK 0x7F
+#define FCOE_CQE_RSP_INFO_RESREVED_SHIFT 1
+ u8 reserved;
+ __le32 fw_residual /* Residual bytes calculated by FW */;
+};
+
+/*
+ * FCoE CQ element Target completion information
+ */
+struct fcoe_cqe_target_info {
+ __le16 rx_id;
+ __le16 reserved0;
+ __le32 reserved1[5];
+};
+
+/*
+ * FCoE error/warning reporting entry
+ */
+struct fcoe_err_report_entry {
+ __le32 err_warn_bitmap_lo /* Error bitmap lower 32 bits */;
+ __le32 err_warn_bitmap_hi /* Error bitmap higher 32 bits */;
+ /* Buffer offset the beginning of the Sequence last transmitted */
+ __le32 tx_buf_off;
+ /* Buffer offset from the beginning of the Sequence last received */
+ __le32 rx_buf_off;
+ __le16 rx_id /* RX_ID of the associated task */;
+ __le16 reserved1;
+ __le32 reserved2;
+};
+
+/*
+ * FCoE CQ element middle path information
+ */
+struct fcoe_cqe_midpath_info {
+ __le32 data_placement_size;
+ __le16 rx_id;
+ __le16 reserved0;
+ __le32 reserved1[4];
+};
+
+/*
+ * FCoE CQ element unsolicited information
+ */
+struct fcoe_unsolic_info {
+ /* BD information: Physical address and opaque data */
+ struct scsi_bd bd_info;
+ __le16 conn_id /* Connection ID the frame is associated to */;
+ __le16 pkt_len /* Packet length */;
+ u8 reserved1[4];
+};
+
+/*
+ * FCoE warning reporting entry
+ */
+struct fcoe_warning_report_entry {
+ /* BD information: Physical address and opaque data */
+ struct scsi_bd bd_info;
+ /* Buffer offset the beginning of the Sequence last transmitted */
+ __le32 buf_off;
+ __le16 rx_id /* RX_ID of the associated task */;
+ __le16 reserved1;
+};
+
+/*
+ * FCoE CQ element information
+ */
+union fcoe_cqe_info {
+ struct fcoe_cqe_rsp_info rsp_info /* Response completion information */;
+ /* Target completion information */
+ struct fcoe_cqe_target_info target_info;
+ /* Error completion information */
+ struct fcoe_err_report_entry err_info;
+ struct fcoe_abts_info abts_info /* ABTS completion information */;
+ /* Middle path completion information */
+ struct fcoe_cqe_midpath_info midpath_info;
+ /* Unsolicited packet completion information */
+ struct fcoe_unsolic_info unsolic_info;
+ /* Warning completion information (Rec Tov expiration) */
+ struct fcoe_warning_report_entry warn_info;
+};
+
+/*
+ * FCoE CQ element
+ */
+struct fcoe_cqe {
+ __le32 cqe_data;
+ /* The task identifier (OX_ID) to be completed */
+#define FCOE_CQE_TASK_ID_MASK 0xFFFF
+#define FCOE_CQE_TASK_ID_SHIFT 0
+ /*
+ * The CQE type: 0x0 Indicating on a pending work request completion.
+ * 0x1 - Indicating on an unsolicited event notification. use enum
+ * fcoe_cqe_type (use enum fcoe_cqe_type)
+ */
+#define FCOE_CQE_CQE_TYPE_MASK 0xF
+#define FCOE_CQE_CQE_TYPE_SHIFT 16
+#define FCOE_CQE_RESERVED0_MASK 0xFFF
+#define FCOE_CQE_RESERVED0_SHIFT 20
+ __le16 reserved1;
+ __le16 fw_cq_prod;
+ union fcoe_cqe_info cqe_info;
+};
+
+
+
+
+
+
+/*
+ * FCoE CQE type
+ */
+enum fcoe_cqe_type {
+ /* solicited response on a R/W or middle-path SQE */
+ FCOE_GOOD_COMPLETION_CQE_TYPE,
+ FCOE_UNSOLIC_CQE_TYPE /* unsolicited packet, RQ consumed */,
+ FCOE_ERROR_DETECTION_CQE_TYPE /* timer expiration, validation error */,
+ FCOE_WARNING_CQE_TYPE /* rec_tov or rr_tov timer expiration */,
+ FCOE_EXCH_CLEANUP_CQE_TYPE /* task cleanup completed */,
+ FCOE_ABTS_CQE_TYPE /* ABTS received and task cleaned */,
+ FCOE_DUMMY_CQE_TYPE /* just increment SQ CONS */,
+ /* Task was completed wight after sending a pkt to the target */
+ FCOE_LOCAL_COMP_CQE_TYPE,
+ MAX_FCOE_CQE_TYPE
+};
+
+
+/*
+ * FCoE device type
+ */
+enum fcoe_device_type {
+ FCOE_TASK_DEV_TYPE_DISK,
+ FCOE_TASK_DEV_TYPE_TAPE,
+ MAX_FCOE_DEVICE_TYPE
+};
+
+
+
+
+/*
+ * FCoE fast path error codes
+ */
+enum fcoe_fp_error_warning_code {
+ FCOE_ERROR_CODE_XFER_OOO_RO /* XFER error codes */,
+ FCOE_ERROR_CODE_XFER_RO_NOT_ALIGNED,
+ FCOE_ERROR_CODE_XFER_NULL_BURST_LEN,
+ FCOE_ERROR_CODE_XFER_RO_GREATER_THAN_DATA2TRNS,
+ FCOE_ERROR_CODE_XFER_INVALID_PAYLOAD_SIZE,
+ FCOE_ERROR_CODE_XFER_TASK_TYPE_NOT_WRITE,
+ FCOE_ERROR_CODE_XFER_PEND_XFER_SET,
+ FCOE_ERROR_CODE_XFER_OPENED_SEQ,
+ FCOE_ERROR_CODE_XFER_FCTL,
+ FCOE_ERROR_CODE_FCP_RSP_BIDI_FLAGS_SET /* FCP RSP error codes */,
+ FCOE_ERROR_CODE_FCP_RSP_INVALID_LENGTH_FIELD,
+ FCOE_ERROR_CODE_FCP_RSP_INVALID_SNS_FIELD,
+ FCOE_ERROR_CODE_FCP_RSP_INVALID_PAYLOAD_SIZE,
+ FCOE_ERROR_CODE_FCP_RSP_PEND_XFER_SET,
+ FCOE_ERROR_CODE_FCP_RSP_OPENED_SEQ,
+ FCOE_ERROR_CODE_FCP_RSP_FCTL,
+ FCOE_ERROR_CODE_FCP_RSP_LAST_SEQ_RESET,
+ FCOE_ERROR_CODE_FCP_RSP_CONF_REQ_NOT_SUPPORTED_YET,
+ FCOE_ERROR_CODE_DATA_OOO_RO /* FCP DATA error codes */,
+ FCOE_ERROR_CODE_DATA_EXCEEDS_DEFINED_MAX_FRAME_SIZE,
+ FCOE_ERROR_CODE_DATA_EXCEEDS_DATA2TRNS,
+ FCOE_ERROR_CODE_DATA_SOFI3_SEQ_ACTIVE_SET,
+ FCOE_ERROR_CODE_DATA_SOFN_SEQ_ACTIVE_RESET,
+ FCOE_ERROR_CODE_DATA_EOFN_END_SEQ_SET,
+ FCOE_ERROR_CODE_DATA_EOFT_END_SEQ_RESET,
+ FCOE_ERROR_CODE_DATA_TASK_TYPE_NOT_READ,
+ FCOE_ERROR_CODE_DATA_FCTL_INITIATIR,
+ FCOE_ERROR_CODE_MIDPATH_INVALID_TYPE /* Middle path error codes */,
+ FCOE_ERROR_CODE_MIDPATH_SOFI3_SEQ_ACTIVE_SET,
+ FCOE_ERROR_CODE_MIDPATH_SOFN_SEQ_ACTIVE_RESET,
+ FCOE_ERROR_CODE_MIDPATH_EOFN_END_SEQ_SET,
+ FCOE_ERROR_CODE_MIDPATH_EOFT_END_SEQ_RESET,
+ FCOE_ERROR_CODE_MIDPATH_REPLY_FCTL,
+ FCOE_ERROR_CODE_MIDPATH_INVALID_REPLY,
+ FCOE_ERROR_CODE_MIDPATH_ELS_REPLY_RCTL,
+ FCOE_ERROR_CODE_COMMON_MIDDLE_FRAME_WITH_PAD /* Common error codes */,
+ FCOE_ERROR_CODE_COMMON_SEQ_INIT_IN_TCE,
+ FCOE_ERROR_CODE_COMMON_FC_HDR_RX_ID_MISMATCH,
+ FCOE_ERROR_CODE_COMMON_INCORRECT_SEQ_CNT,
+ FCOE_ERROR_CODE_COMMON_DATA_FC_HDR_FCP_TYPE_MISMATCH,
+ FCOE_ERROR_CODE_COMMON_DATA_NO_MORE_SGES,
+ FCOE_ERROR_CODE_COMMON_OPTIONAL_FC_HDR,
+ FCOE_ERROR_CODE_COMMON_READ_TCE_OX_ID_TOO_BIG,
+ FCOE_ERROR_CODE_COMMON_DATA_WAS_NOT_TRANSMITTED,
+ FCOE_ERROR_CODE_COMMON_TASK_DDF_RCTL_INFO_FIELD,
+ FCOE_ERROR_CODE_COMMON_TASK_INVALID_RCTL,
+ FCOE_ERROR_CODE_COMMON_TASK_RCTL_GENERAL_MISMATCH,
+ FCOE_ERROR_CODE_E_D_TOV_TIMER_EXPIRATION /* Timer error codes */,
+ FCOE_WARNING_CODE_REC_TOV_TIMER_EXPIRATION /* Timer error codes */,
+ FCOE_ERROR_CODE_RR_TOV_TIMER_EXPIRATION /* Timer error codes */,
+ /* ABTSrsp pckt arrived unexpected */
+ FCOE_ERROR_CODE_ABTS_REPLY_UNEXPECTED,
+ FCOE_ERROR_CODE_TARGET_MODE_FCP_RSP,
+ FCOE_ERROR_CODE_TARGET_MODE_FCP_XFER,
+ FCOE_ERROR_CODE_TARGET_MODE_DATA_TASK_TYPE_NOT_WRITE,
+ FCOE_ERROR_CODE_DATA_FCTL_TARGET,
+ FCOE_ERROR_CODE_TARGET_DATA_SIZE_NO_MATCH_XFER,
+ FCOE_ERROR_CODE_TARGET_DIF_CRC_CHECKSUM_ERROR,
+ FCOE_ERROR_CODE_TARGET_DIF_REF_TAG_ERROR,
+ FCOE_ERROR_CODE_TARGET_DIF_APP_TAG_ERROR,
+ MAX_FCOE_FP_ERROR_WARNING_CODE
+};
+
+
+/*
+ * FCoE RESPQ element
+ */
+struct fcoe_respqe {
+ __le16 ox_id /* OX_ID that is located in the FCP_RSP FC header */;
+ __le16 rx_id /* RX_ID that is located in the FCP_RSP FC header */;
+ __le32 additional_info;
+/* PARAM that is located in the FCP_RSP FC header */
+#define FCOE_RESPQE_PARAM_MASK 0xFFFFFF
+#define FCOE_RESPQE_PARAM_SHIFT 0
+/* Indication whther its Target-auto-rsp mode or not */
+#define FCOE_RESPQE_TARGET_AUTO_RSP_MASK 0xFF
+#define FCOE_RESPQE_TARGET_AUTO_RSP_SHIFT 24
+};
+
+
+/*
+ * FCoE slow path error codes
+ */
+enum fcoe_sp_error_code {
+ /* Error codes for Error Reporting in slow path flows */
+ FCOE_ERROR_CODE_SLOW_PATH_TOO_MANY_FUNCS,
+ FCOE_ERROR_SLOW_PATH_CODE_NO_LICENSE,
+ MAX_FCOE_SP_ERROR_CODE
+};
+
+
+/*
+ * FCoE SQE request type
+ */
+enum fcoe_sqe_request_type {
+ SEND_FCOE_CMD,
+ SEND_FCOE_MIDPATH,
+ SEND_FCOE_ABTS_REQUEST,
+ FCOE_EXCHANGE_CLEANUP,
+ FCOE_SEQUENCE_RECOVERY,
+ SEND_FCOE_XFER_RDY,
+ SEND_FCOE_RSP,
+ SEND_FCOE_RSP_WITH_SENSE_DATA,
+ SEND_FCOE_TARGET_DATA,
+ SEND_FCOE_INITIATOR_DATA,
+ /*
+ * Xfer Continuation (==1) ready to be sent. Previous XFERs data
+ * received successfully.
+ */
+ SEND_FCOE_XFER_CONTINUATION_RDY,
+ SEND_FCOE_TARGET_ABTS_RSP,
+ MAX_FCOE_SQE_REQUEST_TYPE
+};
+
+
+/*
+ * FCoE task TX state
+ */
+enum fcoe_task_tx_state {
+ /* Initiate state after driver has initialized the task */
+ FCOE_TASK_TX_STATE_NORMAL,
+ /* Updated by TX path after complete transmitting unsolicited packet */
+ FCOE_TASK_TX_STATE_UNSOLICITED_COMPLETED,
+ /*
+ * Updated by TX path after start processing the task requesting the
+ * cleanup/abort operation
+ */
+ FCOE_TASK_TX_STATE_CLEAN_REQ,
+ FCOE_TASK_TX_STATE_ABTS /* Updated by TX path during abort procedure */,
+ /* Updated by TX path during exchange cleanup procedure */
+ FCOE_TASK_TX_STATE_EXCLEANUP,
+ /*
+ * Updated by TX path during exchange cleanup continuation task
+ * procedure
+ */
+ FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_WRITE_CONT,
+ /* Updated by TX path during exchange cleanup first xfer procedure */
+ FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_WRITE,
+ /* Updated by TX path during exchange cleanup read task in Target */
+ FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_READ_OR_RSP,
+ /* Updated by TX path during target exchange cleanup procedure */
+ FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_WRITE_LAST_CYCLE,
+ /* Updated by TX path during sequence recovery procedure */
+ FCOE_TASK_TX_STATE_SEQRECOVERY,
+ MAX_FCOE_TASK_TX_STATE
+};
+
+
+/*
+ * FCoE task type
+ */
+enum fcoe_task_type {
+ FCOE_TASK_TYPE_WRITE_INITIATOR,
+ FCOE_TASK_TYPE_READ_INITIATOR,
+ FCOE_TASK_TYPE_MIDPATH,
+ FCOE_TASK_TYPE_UNSOLICITED,
+ FCOE_TASK_TYPE_ABTS,
+ FCOE_TASK_TYPE_EXCHANGE_CLEANUP,
+ FCOE_TASK_TYPE_SEQUENCE_CLEANUP,
+ FCOE_TASK_TYPE_WRITE_TARGET,
+ FCOE_TASK_TYPE_READ_TARGET,
+ FCOE_TASK_TYPE_RSP,
+ FCOE_TASK_TYPE_RSP_SENSE_DATA,
+ FCOE_TASK_TYPE_ABTS_TARGET,
+ FCOE_TASK_TYPE_ENUM_SIZE,
+ MAX_FCOE_TASK_TYPE
+};
+
+struct scsi_glbl_queue_entry {
+ /* Start physical address for the RQ (receive queue) PBL. */
+ struct regpair rq_pbl_addr;
+ /* Start physical address for the CQ (completion queue) PBL. */
+ struct regpair cq_pbl_addr;
+ /* Start physical address for the CMDQ (command queue) PBL. */
+ struct regpair cmdq_pbl_addr;
+};
+
+#endif /* __QEDF_HSI__ */
diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c
new file mode 100644
index 0000000..f98a725
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_io.c
@@ -0,0 +1,2280 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include <linux/spinlock.h>
+#include <linux/vmalloc.h>
+#include "qedf.h"
+#include <scsi/scsi_tcq.h>
+
+void qedf_cmd_timer_set(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
+ unsigned int timer_msec)
+{
+ queue_delayed_work(qedf->timer_work_queue, &io_req->timeout_work,
+ msecs_to_jiffies(timer_msec));
+}
+
+static void qedf_cmd_timeout(struct work_struct *work)
+{
+
+ struct qedf_ioreq *io_req =
+ container_of(work, struct qedf_ioreq, timeout_work.work);
+ struct qedf_ctx *qedf = io_req->fcport->qedf;
+ struct qedf_rport *fcport = io_req->fcport;
+ u8 op = 0;
+
+ switch (io_req->cmd_type) {
+ case QEDF_ABTS:
+ QEDF_ERR((&qedf->dbg_ctx), "ABTS timeout, xid=0x%x.\n",
+ io_req->xid);
+ /* Cleanup timed out ABTS */
+ qedf_initiate_cleanup(io_req, true);
+ complete(&io_req->abts_done);
+
+ /*
+ * Need to call kref_put for reference taken when initiate_abts
+ * was called since abts_compl won't be called now that we've
+ * cleaned up the task.
+ */
+ kref_put(&io_req->refcount, qedf_release_cmd);
+
+ /*
+ * Now that the original I/O and the ABTS are complete see
+ * if we need to reconnect to the target.
+ */
+ qedf_restart_rport(fcport);
+ break;
+ case QEDF_ELS:
+ kref_get(&io_req->refcount);
+ /*
+ * Don't attempt to clean an ELS timeout as any subseqeunt
+ * ABTS or cleanup requests just hang. For now just free
+ * the resources of the original I/O and the RRQ
+ */
+ QEDF_ERR(&(qedf->dbg_ctx), "ELS timeout, xid=0x%x.\n",
+ io_req->xid);
+ io_req->event = QEDF_IOREQ_EV_ELS_TMO;
+ /* Call callback function to complete command */
+ if (io_req->cb_func && io_req->cb_arg) {
+ op = io_req->cb_arg->op;
+ io_req->cb_func(io_req->cb_arg);
+ io_req->cb_arg = NULL;
+ }
+ qedf_initiate_cleanup(io_req, true);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ break;
+ case QEDF_SEQ_CLEANUP:
+ QEDF_ERR(&(qedf->dbg_ctx), "Sequence cleanup timeout, "
+ "xid=0x%x.\n", io_req->xid);
+ qedf_initiate_cleanup(io_req, true);
+ io_req->event = QEDF_IOREQ_EV_ELS_TMO;
+ qedf_process_seq_cleanup_compl(qedf, NULL, io_req);
+ break;
+ default:
+ break;
+ }
+}
+
+void qedf_cmd_mgr_free(struct qedf_cmd_mgr *cmgr)
+{
+ struct io_bdt *bdt_info;
+ struct qedf_ctx *qedf = cmgr->qedf;
+ size_t bd_tbl_sz;
+ u16 min_xid = QEDF_MIN_XID;
+ u16 max_xid = (FCOE_PARAMS_NUM_TASKS - 1);
+ int num_ios;
+ int i;
+ struct qedf_ioreq *io_req;
+
+ num_ios = max_xid - min_xid + 1;
+
+ /* Free fcoe_bdt_ctx structures */
+ if (!cmgr->io_bdt_pool)
+ goto free_cmd_pool;
+
+ bd_tbl_sz = QEDF_MAX_BDS_PER_CMD * sizeof(struct fcoe_sge);
+ for (i = 0; i < num_ios; i++) {
+ bdt_info = cmgr->io_bdt_pool[i];
+ if (bdt_info->bd_tbl) {
+ dma_free_coherent(&qedf->pdev->dev, bd_tbl_sz,
+ bdt_info->bd_tbl, bdt_info->bd_tbl_dma);
+ bdt_info->bd_tbl = NULL;
+ }
+ }
+
+ /* Destroy io_bdt pool */
+ for (i = 0; i < num_ios; i++) {
+ kfree(cmgr->io_bdt_pool[i]);
+ cmgr->io_bdt_pool[i] = NULL;
+ }
+
+ kfree(cmgr->io_bdt_pool);
+ cmgr->io_bdt_pool = NULL;
+
+free_cmd_pool:
+
+ for (i = 0; i < num_ios; i++) {
+ io_req = &cmgr->cmds[i];
+ /* Make sure we free per command sense buffer */
+ if (io_req->sense_buffer)
+ dma_free_coherent(&qedf->pdev->dev,
+ QEDF_SCSI_SENSE_BUFFERSIZE, io_req->sense_buffer,
+ io_req->sense_buffer_dma);
+ cancel_delayed_work_sync(&io_req->rrq_work);
+ }
+
+ /* Free command manager itself */
+ vfree(cmgr);
+}
+
+static void qedf_handle_rrq(struct work_struct *work)
+{
+ struct qedf_ioreq *io_req =
+ container_of(work, struct qedf_ioreq, rrq_work.work);
+
+ qedf_send_rrq(io_req);
+
+}
+
+struct qedf_cmd_mgr *qedf_cmd_mgr_alloc(struct qedf_ctx *qedf)
+{
+ struct qedf_cmd_mgr *cmgr;
+ struct io_bdt *bdt_info;
+ struct qedf_ioreq *io_req;
+ u16 xid;
+ int i;
+ int num_ios;
+ u16 min_xid = QEDF_MIN_XID;
+ u16 max_xid = (FCOE_PARAMS_NUM_TASKS - 1);
+
+ /* Make sure num_queues is already set before calling this function */
+ if (!qedf->num_queues) {
+ QEDF_ERR(&(qedf->dbg_ctx), "num_queues is not set.\n");
+ return NULL;
+ }
+
+ if (max_xid <= min_xid || max_xid == FC_XID_UNKNOWN) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Invalid min_xid 0x%x and "
+ "max_xid 0x%x.\n", min_xid, max_xid);
+ return NULL;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "min xid 0x%x, max xid "
+ "0x%x.\n", min_xid, max_xid);
+
+ num_ios = max_xid - min_xid + 1;
+
+ cmgr = vzalloc(sizeof(struct qedf_cmd_mgr));
+ if (!cmgr) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Failed to alloc cmd mgr.\n");
+ return NULL;
+ }
+
+ cmgr->qedf = qedf;
+ spin_lock_init(&cmgr->lock);
+
+ /*
+ * Initialize list of qedf_ioreq.
+ */
+ xid = QEDF_MIN_XID;
+
+ for (i = 0; i < num_ios; i++) {
+ io_req = &cmgr->cmds[i];
+ INIT_DELAYED_WORK(&io_req->timeout_work, qedf_cmd_timeout);
+
+ io_req->xid = xid++;
+
+ INIT_DELAYED_WORK(&io_req->rrq_work, qedf_handle_rrq);
+
+ /* Allocate DMA memory to hold sense buffer */
+ io_req->sense_buffer = dma_alloc_coherent(&qedf->pdev->dev,
+ QEDF_SCSI_SENSE_BUFFERSIZE, &io_req->sense_buffer_dma,
+ GFP_KERNEL);
+ if (!io_req->sense_buffer)
+ goto mem_err;
+ }
+
+ /* Allocate pool of io_bdts - one for each qedf_ioreq */
+ cmgr->io_bdt_pool = kmalloc_array(num_ios, sizeof(struct io_bdt *),
+ GFP_KERNEL);
+
+ if (!cmgr->io_bdt_pool) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Failed to alloc io_bdt_pool.\n");
+ goto mem_err;
+ }
+
+ for (i = 0; i < num_ios; i++) {
+ cmgr->io_bdt_pool[i] = kmalloc(sizeof(struct io_bdt),
+ GFP_KERNEL);
+ if (!cmgr->io_bdt_pool[i]) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Failed to alloc "
+ "io_bdt_pool[%d].\n", i);
+ goto mem_err;
+ }
+ }
+
+ for (i = 0; i < num_ios; i++) {
+ bdt_info = cmgr->io_bdt_pool[i];
+ bdt_info->bd_tbl = dma_alloc_coherent(&qedf->pdev->dev,
+ QEDF_MAX_BDS_PER_CMD * sizeof(struct fcoe_sge),
+ &bdt_info->bd_tbl_dma, GFP_KERNEL);
+ if (!bdt_info->bd_tbl) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Failed to alloc "
+ "bdt_tbl[%d].\n", i);
+ goto mem_err;
+ }
+ }
+ atomic_set(&cmgr->free_list_cnt, num_ios);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "cmgr->free_list_cnt=%d.\n",
+ atomic_read(&cmgr->free_list_cnt));
+
+ return cmgr;
+
+mem_err:
+ qedf_cmd_mgr_free(cmgr);
+ return NULL;
+}
+
+struct qedf_ioreq *qedf_alloc_cmd(struct qedf_rport *fcport, u8 cmd_type)
+{
+ struct qedf_ctx *qedf = fcport->qedf;
+ struct qedf_cmd_mgr *cmd_mgr = qedf->cmd_mgr;
+ struct qedf_ioreq *io_req = NULL;
+ struct io_bdt *bd_tbl;
+ u16 xid;
+ uint32_t free_sqes;
+ int i;
+ unsigned long flags;
+
+ free_sqes = atomic_read(&fcport->free_sqes);
+
+ if (!free_sqes) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Returning NULL, free_sqes=%d.\n ",
+ free_sqes);
+ goto out_failed;
+ }
+
+ /* Limit the number of outstanding R/W tasks */
+ if ((atomic_read(&fcport->num_active_ios) >=
+ NUM_RW_TASKS_PER_CONNECTION)) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Returning NULL, num_active_ios=%d.\n",
+ atomic_read(&fcport->num_active_ios));
+ goto out_failed;
+ }
+
+ /* Limit global TIDs certain tasks */
+ if (atomic_read(&cmd_mgr->free_list_cnt) <= GBL_RSVD_TASKS) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Returning NULL, free_list_cnt=%d.\n",
+ atomic_read(&cmd_mgr->free_list_cnt));
+ goto out_failed;
+ }
+
+ spin_lock_irqsave(&cmd_mgr->lock, flags);
+ for (i = 0; i < FCOE_PARAMS_NUM_TASKS; i++) {
+ io_req = &cmd_mgr->cmds[cmd_mgr->idx];
+ cmd_mgr->idx++;
+ if (cmd_mgr->idx == FCOE_PARAMS_NUM_TASKS)
+ cmd_mgr->idx = 0;
+
+ /* Check to make sure command was previously freed */
+ if (!test_bit(QEDF_CMD_OUTSTANDING, &io_req->flags))
+ break;
+ }
+
+ if (i == FCOE_PARAMS_NUM_TASKS) {
+ spin_unlock_irqrestore(&cmd_mgr->lock, flags);
+ goto out_failed;
+ }
+
+ set_bit(QEDF_CMD_OUTSTANDING, &io_req->flags);
+ spin_unlock_irqrestore(&cmd_mgr->lock, flags);
+
+ atomic_inc(&fcport->num_active_ios);
+ atomic_dec(&fcport->free_sqes);
+ xid = io_req->xid;
+ atomic_dec(&cmd_mgr->free_list_cnt);
+
+ io_req->cmd_mgr = cmd_mgr;
+ io_req->fcport = fcport;
+
+ /* Hold the io_req against deletion */
+ kref_init(&io_req->refcount);
+
+ /* Bind io_bdt for this io_req */
+ /* Have a static link between io_req and io_bdt_pool */
+ bd_tbl = io_req->bd_tbl = cmd_mgr->io_bdt_pool[xid];
+ if (bd_tbl == NULL) {
+ QEDF_ERR(&(qedf->dbg_ctx), "bd_tbl is NULL, xid=%x.\n", xid);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ goto out_failed;
+ }
+ bd_tbl->io_req = io_req;
+ io_req->cmd_type = cmd_type;
+
+ /* Reset sequence offset data */
+ io_req->rx_buf_off = 0;
+ io_req->tx_buf_off = 0;
+ io_req->rx_id = 0xffff; /* No OX_ID */
+
+ return io_req;
+
+out_failed:
+ /* Record failure for stats and return NULL to caller */
+ qedf->alloc_failures++;
+ return NULL;
+}
+
+static void qedf_free_mp_resc(struct qedf_ioreq *io_req)
+{
+ struct qedf_mp_req *mp_req = &(io_req->mp_req);
+ struct qedf_ctx *qedf = io_req->fcport->qedf;
+ uint64_t sz = sizeof(struct fcoe_sge);
+
+ /* clear tm flags */
+ mp_req->tm_flags = 0;
+ if (mp_req->mp_req_bd) {
+ dma_free_coherent(&qedf->pdev->dev, sz,
+ mp_req->mp_req_bd, mp_req->mp_req_bd_dma);
+ mp_req->mp_req_bd = NULL;
+ }
+ if (mp_req->mp_resp_bd) {
+ dma_free_coherent(&qedf->pdev->dev, sz,
+ mp_req->mp_resp_bd, mp_req->mp_resp_bd_dma);
+ mp_req->mp_resp_bd = NULL;
+ }
+ if (mp_req->req_buf) {
+ dma_free_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
+ mp_req->req_buf, mp_req->req_buf_dma);
+ mp_req->req_buf = NULL;
+ }
+ if (mp_req->resp_buf) {
+ dma_free_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
+ mp_req->resp_buf, mp_req->resp_buf_dma);
+ mp_req->resp_buf = NULL;
+ }
+}
+
+void qedf_release_cmd(struct kref *ref)
+{
+ struct qedf_ioreq *io_req =
+ container_of(ref, struct qedf_ioreq, refcount);
+ struct qedf_cmd_mgr *cmd_mgr = io_req->cmd_mgr;
+ struct qedf_rport *fcport = io_req->fcport;
+
+ if (io_req->cmd_type == QEDF_ELS ||
+ io_req->cmd_type == QEDF_TASK_MGMT_CMD)
+ qedf_free_mp_resc(io_req);
+
+ atomic_inc(&cmd_mgr->free_list_cnt);
+ atomic_dec(&fcport->num_active_ios);
+ if (atomic_read(&fcport->num_active_ios) < 0)
+ QEDF_WARN(&(fcport->qedf->dbg_ctx), "active_ios < 0.\n");
+
+ /* Increment task retry identifier now that the request is released */
+ io_req->task_retry_identifier++;
+
+ clear_bit(QEDF_CMD_OUTSTANDING, &io_req->flags);
+}
+
+static int qedf_split_bd(struct qedf_ioreq *io_req, u64 addr, int sg_len,
+ int bd_index)
+{
+ struct fcoe_sge *bd = io_req->bd_tbl->bd_tbl;
+ int frag_size, sg_frags;
+
+ sg_frags = 0;
+ while (sg_len) {
+ if (sg_len > QEDF_BD_SPLIT_SZ)
+ frag_size = QEDF_BD_SPLIT_SZ;
+ else
+ frag_size = sg_len;
+ bd[bd_index + sg_frags].sge_addr.lo = U64_LO(addr);
+ bd[bd_index + sg_frags].sge_addr.hi = U64_HI(addr);
+ bd[bd_index + sg_frags].size = (uint16_t)frag_size;
+
+ addr += (u64)frag_size;
+ sg_frags++;
+ sg_len -= frag_size;
+ }
+ return sg_frags;
+}
+
+static int qedf_map_sg(struct qedf_ioreq *io_req)
+{
+ struct scsi_cmnd *sc = io_req->sc_cmd;
+ struct Scsi_Host *host = sc->device->host;
+ struct fc_lport *lport = shost_priv(host);
+ struct qedf_ctx *qedf = lport_priv(lport);
+ struct fcoe_sge *bd = io_req->bd_tbl->bd_tbl;
+ struct scatterlist *sg;
+ int byte_count = 0;
+ int sg_count = 0;
+ int bd_count = 0;
+ int sg_frags;
+ unsigned int sg_len;
+ u64 addr, end_addr;
+ int i;
+
+ sg_count = dma_map_sg(&qedf->pdev->dev, scsi_sglist(sc),
+ scsi_sg_count(sc), sc->sc_data_direction);
+
+ sg = scsi_sglist(sc);
+
+ /*
+ * New condition to send single SGE as cached-SGL with length less
+ * than 64k.
+ */
+ if ((sg_count == 1) && (sg_dma_len(sg) <=
+ QEDF_MAX_SGLEN_FOR_CACHESGL)) {
+ sg_len = sg_dma_len(sg);
+ addr = (u64)sg_dma_address(sg);
+
+ bd[bd_count].sge_addr.lo = (addr & 0xffffffff);
+ bd[bd_count].sge_addr.hi = (addr >> 32);
+ bd[bd_count].size = (u16)sg_len;
+
+ return ++bd_count;
+ }
+
+ scsi_for_each_sg(sc, sg, sg_count, i) {
+ sg_len = sg_dma_len(sg);
+ addr = (u64)sg_dma_address(sg);
+ end_addr = (u64)(addr + sg_len);
+
+ /*
+ * First s/g element in the list so check if the end_addr
+ * is paged aligned. Also check to make sure the length is
+ * at least page size.
+ */
+ if ((i == 0) && (sg_count > 1) &&
+ ((end_addr % QEDF_PAGE_SIZE) ||
+ sg_len < QEDF_PAGE_SIZE))
+ io_req->use_slowpath = true;
+ /*
+ * Last s/g element so check if the start address is paged
+ * aligned.
+ */
+ else if ((i == (sg_count - 1)) && (sg_count > 1) &&
+ (addr % QEDF_PAGE_SIZE))
+ io_req->use_slowpath = true;
+ /*
+ * Intermediate s/g element so check if start and end address
+ * is page aligned.
+ */
+ else if ((i != 0) && (i != (sg_count - 1)) &&
+ ((addr % QEDF_PAGE_SIZE) || (end_addr % QEDF_PAGE_SIZE)))
+ io_req->use_slowpath = true;
+
+ if (sg_len > QEDF_MAX_BD_LEN) {
+ sg_frags = qedf_split_bd(io_req, addr, sg_len,
+ bd_count);
+ } else {
+ sg_frags = 1;
+ bd[bd_count].sge_addr.lo = U64_LO(addr);
+ bd[bd_count].sge_addr.hi = U64_HI(addr);
+ bd[bd_count].size = (uint16_t)sg_len;
+ }
+
+ bd_count += sg_frags;
+ byte_count += sg_len;
+ }
+
+ if (byte_count != scsi_bufflen(sc))
+ QEDF_ERR(&(qedf->dbg_ctx), "byte_count = %d != "
+ "scsi_bufflen = %d, task_id = 0x%x.\n", byte_count,
+ scsi_bufflen(sc), io_req->xid);
+
+ return bd_count;
+}
+
+static int qedf_build_bd_list_from_sg(struct qedf_ioreq *io_req)
+{
+ struct scsi_cmnd *sc = io_req->sc_cmd;
+ struct fcoe_sge *bd = io_req->bd_tbl->bd_tbl;
+ int bd_count;
+
+ if (scsi_sg_count(sc)) {
+ bd_count = qedf_map_sg(io_req);
+ if (bd_count == 0)
+ return -ENOMEM;
+ } else {
+ bd_count = 0;
+ bd[0].sge_addr.lo = bd[0].sge_addr.hi = 0;
+ bd[0].size = 0;
+ }
+ io_req->bd_tbl->bd_valid = bd_count;
+
+ return 0;
+}
+
+static void qedf_build_fcp_cmnd(struct qedf_ioreq *io_req,
+ struct fcp_cmnd *fcp_cmnd)
+{
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+
+ /* fcp_cmnd is 32 bytes */
+ memset(fcp_cmnd, 0, FCP_CMND_LEN);
+
+ /* 8 bytes: SCSI LUN info */
+ int_to_scsilun(sc_cmd->device->lun,
+ (struct scsi_lun *)&fcp_cmnd->fc_lun);
+
+ /* 4 bytes: flag info */
+ fcp_cmnd->fc_pri_ta = 0;
+ fcp_cmnd->fc_tm_flags = io_req->mp_req.tm_flags;
+ fcp_cmnd->fc_flags = io_req->io_req_flags;
+ fcp_cmnd->fc_cmdref = 0;
+
+ /* Populate data direction */
+ if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
+ fcp_cmnd->fc_flags |= FCP_CFL_WRDATA;
+ else if (sc_cmd->sc_data_direction == DMA_FROM_DEVICE)
+ fcp_cmnd->fc_flags |= FCP_CFL_RDDATA;
+
+ fcp_cmnd->fc_pri_ta = FCP_PTA_SIMPLE;
+
+ /* 16 bytes: CDB information */
+ memcpy(fcp_cmnd->fc_cdb, sc_cmd->cmnd, sc_cmd->cmd_len);
+
+ /* 4 bytes: FCP data length */
+ fcp_cmnd->fc_dl = htonl(io_req->data_xfer_len);
+
+}
+
+static void qedf_init_task(struct qedf_rport *fcport, struct fc_lport *lport,
+ struct qedf_ioreq *io_req, u32 *ptu_invalidate,
+ struct fcoe_task_context *task_ctx)
+{
+ enum fcoe_task_type task_type;
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct io_bdt *bd_tbl = io_req->bd_tbl;
+ union fcoe_data_desc_ctx *data_desc;
+ u32 *fcp_cmnd;
+ u32 tmp_fcp_cmnd[8];
+ int cnt, i;
+ int bd_count;
+ struct qedf_ctx *qedf = fcport->qedf;
+ uint16_t cq_idx = smp_processor_id() % qedf->num_queues;
+ u8 tmp_sgl_mode = 0;
+ u8 mst_sgl_mode = 0;
+
+ memset(task_ctx, 0, sizeof(struct fcoe_task_context));
+ io_req->task = task_ctx;
+
+ if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
+ task_type = FCOE_TASK_TYPE_WRITE_INITIATOR;
+ else
+ task_type = FCOE_TASK_TYPE_READ_INITIATOR;
+
+ /* Y Storm context */
+ task_ctx->ystorm_st_context.expect_first_xfer = 1;
+ task_ctx->ystorm_st_context.data_2_trns_rem = io_req->data_xfer_len;
+ /* Check if this is required */
+ task_ctx->ystorm_st_context.ox_id = io_req->xid;
+ task_ctx->ystorm_st_context.task_rety_identifier =
+ io_req->task_retry_identifier;
+
+ /* T Storm ag context */
+ SET_FIELD(task_ctx->tstorm_ag_context.flags0,
+ TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE, PROTOCOLID_FCOE);
+ task_ctx->tstorm_ag_context.icid = (u16)fcport->fw_cid;
+
+ /* T Storm st context */
+ SET_FIELD(task_ctx->tstorm_st_context.read_write.flags,
+ FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME,
+ 1);
+ task_ctx->tstorm_st_context.read_write.rx_id = 0xffff;
+
+ task_ctx->tstorm_st_context.read_only.dev_type =
+ FCOE_TASK_DEV_TYPE_DISK;
+ task_ctx->tstorm_st_context.read_only.conf_supported = 0;
+ task_ctx->tstorm_st_context.read_only.cid = fcport->fw_cid;
+
+ /* Completion queue for response. */
+ task_ctx->tstorm_st_context.read_only.glbl_q_num = cq_idx;
+ task_ctx->tstorm_st_context.read_only.fcp_cmd_trns_size =
+ io_req->data_xfer_len;
+ task_ctx->tstorm_st_context.read_write.e_d_tov_exp_timeout_val =
+ lport->e_d_tov;
+
+ task_ctx->ustorm_ag_context.global_cq_num = cq_idx;
+ io_req->fp_idx = cq_idx;
+
+ bd_count = bd_tbl->bd_valid;
+ if (task_type == FCOE_TASK_TYPE_WRITE_INITIATOR) {
+ /* Setup WRITE task */
+ struct fcoe_sge *fcoe_bd_tbl = bd_tbl->bd_tbl;
+
+ task_ctx->ystorm_st_context.task_type =
+ FCOE_TASK_TYPE_WRITE_INITIATOR;
+ data_desc = &task_ctx->ystorm_st_context.data_desc;
+
+ if (io_req->use_slowpath) {
+ SET_FIELD(task_ctx->ystorm_st_context.sgl_mode,
+ YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE,
+ FCOE_SLOW_SGL);
+ data_desc->slow.base_sgl_addr.lo =
+ U64_LO(bd_tbl->bd_tbl_dma);
+ data_desc->slow.base_sgl_addr.hi =
+ U64_HI(bd_tbl->bd_tbl_dma);
+ data_desc->slow.remainder_num_sges = bd_count;
+ data_desc->slow.curr_sge_off = 0;
+ data_desc->slow.curr_sgl_index = 0;
+ qedf->slow_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_SLOW_SGE;
+ } else {
+ SET_FIELD(task_ctx->ystorm_st_context.sgl_mode,
+ YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE,
+ (bd_count <= 4) ? (enum fcoe_sgl_mode)bd_count :
+ FCOE_MUL_FAST_SGES);
+
+ if (bd_count == 1) {
+ data_desc->single_sge.sge_addr.lo =
+ fcoe_bd_tbl->sge_addr.lo;
+ data_desc->single_sge.sge_addr.hi =
+ fcoe_bd_tbl->sge_addr.hi;
+ data_desc->single_sge.size =
+ fcoe_bd_tbl->size;
+ data_desc->single_sge.is_valid_sge = 0;
+ qedf->single_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_SINGLE_SGE;
+ } else {
+ data_desc->fast.sgl_start_addr.lo =
+ U64_LO(bd_tbl->bd_tbl_dma);
+ data_desc->fast.sgl_start_addr.hi =
+ U64_HI(bd_tbl->bd_tbl_dma);
+ data_desc->fast.sgl_byte_offset =
+ data_desc->fast.sgl_start_addr.lo &
+ (QEDF_PAGE_SIZE - 1);
+ if (data_desc->fast.sgl_byte_offset > 0)
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "byte_offset=%u for xid=0x%x.\n",
+ io_req->xid,
+ data_desc->fast.sgl_byte_offset);
+ data_desc->fast.task_reuse_cnt =
+ io_req->reuse_count;
+ io_req->reuse_count++;
+ if (io_req->reuse_count == QEDF_MAX_REUSE) {
+ *ptu_invalidate = 1;
+ io_req->reuse_count = 0;
+ }
+ qedf->fast_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_FAST_SGE;
+ }
+ }
+
+ /* T Storm context */
+ task_ctx->tstorm_st_context.read_only.task_type =
+ FCOE_TASK_TYPE_WRITE_INITIATOR;
+
+ /* M Storm context */
+ tmp_sgl_mode = GET_FIELD(task_ctx->ystorm_st_context.sgl_mode,
+ YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE);
+ SET_FIELD(task_ctx->mstorm_st_context.non_fp.tx_rx_sgl_mode,
+ FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_TX_SGL_MODE,
+ tmp_sgl_mode);
+
+ } else {
+ /* Setup READ task */
+
+ /* M Storm context */
+ struct fcoe_sge *fcoe_bd_tbl = bd_tbl->bd_tbl;
+
+ data_desc = &task_ctx->mstorm_st_context.fp.data_desc;
+ task_ctx->mstorm_st_context.fp.data_2_trns_rem =
+ io_req->data_xfer_len;
+
+ if (io_req->use_slowpath) {
+ SET_FIELD(
+ task_ctx->mstorm_st_context.non_fp.tx_rx_sgl_mode,
+ FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RX_SGL_MODE,
+ FCOE_SLOW_SGL);
+ data_desc->slow.base_sgl_addr.lo =
+ U64_LO(bd_tbl->bd_tbl_dma);
+ data_desc->slow.base_sgl_addr.hi =
+ U64_HI(bd_tbl->bd_tbl_dma);
+ data_desc->slow.remainder_num_sges =
+ bd_count;
+ data_desc->slow.curr_sge_off = 0;
+ data_desc->slow.curr_sgl_index = 0;
+ qedf->slow_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_SLOW_SGE;
+ } else {
+ SET_FIELD(
+ task_ctx->mstorm_st_context.non_fp.tx_rx_sgl_mode,
+ FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RX_SGL_MODE,
+ (bd_count <= 4) ? (enum fcoe_sgl_mode)bd_count :
+ FCOE_MUL_FAST_SGES);
+
+ if (bd_count == 1) {
+ data_desc->single_sge.sge_addr.lo =
+ fcoe_bd_tbl->sge_addr.lo;
+ data_desc->single_sge.sge_addr.hi =
+ fcoe_bd_tbl->sge_addr.hi;
+ data_desc->single_sge.size =
+ fcoe_bd_tbl->size;
+ data_desc->single_sge.is_valid_sge = 0;
+ qedf->single_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_SINGLE_SGE;
+ } else {
+ data_desc->fast.sgl_start_addr.lo =
+ U64_LO(bd_tbl->bd_tbl_dma);
+ data_desc->fast.sgl_start_addr.hi =
+ U64_HI(bd_tbl->bd_tbl_dma);
+ data_desc->fast.sgl_byte_offset = 0;
+ data_desc->fast.task_reuse_cnt =
+ io_req->reuse_count;
+ io_req->reuse_count++;
+ if (io_req->reuse_count == QEDF_MAX_REUSE) {
+ *ptu_invalidate = 1;
+ io_req->reuse_count = 0;
+ }
+ qedf->fast_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_FAST_SGE;
+ }
+ }
+
+ /* Y Storm context */
+ task_ctx->ystorm_st_context.expect_first_xfer = 0;
+ task_ctx->ystorm_st_context.task_type =
+ FCOE_TASK_TYPE_READ_INITIATOR;
+
+ /* T Storm context */
+ task_ctx->tstorm_st_context.read_only.task_type =
+ FCOE_TASK_TYPE_READ_INITIATOR;
+ mst_sgl_mode = GET_FIELD(
+ task_ctx->mstorm_st_context.non_fp.tx_rx_sgl_mode,
+ FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RX_SGL_MODE);
+ SET_FIELD(task_ctx->tstorm_st_context.read_write.flags,
+ FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RX_SGL_MODE,
+ mst_sgl_mode);
+ }
+
+ /* fill FCP_CMND IU */
+ fcp_cmnd = (u32 *)task_ctx->ystorm_st_context.tx_info_union.fcp_cmd_payload.opaque;
+ qedf_build_fcp_cmnd(io_req, (struct fcp_cmnd *)&tmp_fcp_cmnd);
+
+ /* Swap fcp_cmnd since FC is big endian */
+ cnt = sizeof(struct fcp_cmnd) / sizeof(u32);
+
+ for (i = 0; i < cnt; i++) {
+ *fcp_cmnd = cpu_to_be32(tmp_fcp_cmnd[i]);
+ fcp_cmnd++;
+ }
+
+ /* M Storm context - Sense buffer */
+ task_ctx->mstorm_st_context.non_fp.rsp_buf_addr.lo =
+ U64_LO(io_req->sense_buffer_dma);
+ task_ctx->mstorm_st_context.non_fp.rsp_buf_addr.hi =
+ U64_HI(io_req->sense_buffer_dma);
+}
+
+void qedf_init_mp_task(struct qedf_ioreq *io_req,
+ struct fcoe_task_context *task_ctx)
+{
+ struct qedf_mp_req *mp_req = &(io_req->mp_req);
+ struct qedf_rport *fcport = io_req->fcport;
+ struct qedf_ctx *qedf = io_req->fcport->qedf;
+ struct fc_frame_header *fc_hdr;
+ enum fcoe_task_type task_type = 0;
+ union fcoe_data_desc_ctx *data_desc;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Initializing MP task "
+ "for cmd_type = %d\n", io_req->cmd_type);
+
+ qedf->control_requests++;
+
+ /* Obtain task_type */
+ if ((io_req->cmd_type == QEDF_TASK_MGMT_CMD) ||
+ (io_req->cmd_type == QEDF_ELS)) {
+ task_type = FCOE_TASK_TYPE_MIDPATH;
+ } else if (io_req->cmd_type == QEDF_ABTS) {
+ task_type = FCOE_TASK_TYPE_ABTS;
+ }
+
+ memset(task_ctx, 0, sizeof(struct fcoe_task_context));
+
+ /* Setup the task from io_req for easy reference */
+ io_req->task = task_ctx;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "task type = %d\n",
+ task_type);
+
+ /* YSTORM only */
+ {
+ /* Initialize YSTORM task context */
+ struct fcoe_tx_mid_path_params *task_fc_hdr =
+ &task_ctx->ystorm_st_context.tx_info_union.tx_params.mid_path;
+ memset(task_fc_hdr, 0, sizeof(struct fcoe_tx_mid_path_params));
+ task_ctx->ystorm_st_context.task_rety_identifier =
+ io_req->task_retry_identifier;
+
+ /* Init SGL parameters */
+ if ((task_type == FCOE_TASK_TYPE_MIDPATH) ||
+ (task_type == FCOE_TASK_TYPE_UNSOLICITED)) {
+ data_desc = &task_ctx->ystorm_st_context.data_desc;
+ data_desc->slow.base_sgl_addr.lo =
+ U64_LO(mp_req->mp_req_bd_dma);
+ data_desc->slow.base_sgl_addr.hi =
+ U64_HI(mp_req->mp_req_bd_dma);
+ data_desc->slow.remainder_num_sges = 1;
+ data_desc->slow.curr_sge_off = 0;
+ data_desc->slow.curr_sgl_index = 0;
+ }
+
+ fc_hdr = &(mp_req->req_fc_hdr);
+ if (task_type == FCOE_TASK_TYPE_MIDPATH) {
+ fc_hdr->fh_ox_id = io_req->xid;
+ fc_hdr->fh_rx_id = htons(0xffff);
+ } else if (task_type == FCOE_TASK_TYPE_UNSOLICITED) {
+ fc_hdr->fh_rx_id = io_req->xid;
+ }
+
+ /* Fill FC Header into middle path buffer */
+ task_fc_hdr->parameter = fc_hdr->fh_parm_offset;
+ task_fc_hdr->r_ctl = fc_hdr->fh_r_ctl;
+ task_fc_hdr->type = fc_hdr->fh_type;
+ task_fc_hdr->cs_ctl = fc_hdr->fh_cs_ctl;
+ task_fc_hdr->df_ctl = fc_hdr->fh_df_ctl;
+ task_fc_hdr->rx_id = fc_hdr->fh_rx_id;
+ task_fc_hdr->ox_id = fc_hdr->fh_ox_id;
+
+ task_ctx->ystorm_st_context.data_2_trns_rem =
+ io_req->data_xfer_len;
+ task_ctx->ystorm_st_context.task_type = task_type;
+ }
+
+ /* TSTORM ONLY */
+ {
+ task_ctx->tstorm_ag_context.icid = (u16)fcport->fw_cid;
+ task_ctx->tstorm_st_context.read_only.cid = fcport->fw_cid;
+ /* Always send middle-path repsonses on CQ #0 */
+ task_ctx->tstorm_st_context.read_only.glbl_q_num = 0;
+ io_req->fp_idx = 0;
+ SET_FIELD(task_ctx->tstorm_ag_context.flags0,
+ TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE,
+ PROTOCOLID_FCOE);
+ task_ctx->tstorm_st_context.read_only.task_type = task_type;
+ SET_FIELD(task_ctx->tstorm_st_context.read_write.flags,
+ FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME,
+ 1);
+ task_ctx->tstorm_st_context.read_write.rx_id = 0xffff;
+ }
+
+ /* MSTORM only */
+ {
+ if (task_type == FCOE_TASK_TYPE_MIDPATH) {
+ /* Initialize task context */
+ data_desc = &task_ctx->mstorm_st_context.fp.data_desc;
+
+ /* Set cache sges address and length */
+ data_desc->slow.base_sgl_addr.lo =
+ U64_LO(mp_req->mp_resp_bd_dma);
+ data_desc->slow.base_sgl_addr.hi =
+ U64_HI(mp_req->mp_resp_bd_dma);
+ data_desc->slow.remainder_num_sges = 1;
+ data_desc->slow.curr_sge_off = 0;
+ data_desc->slow.curr_sgl_index = 0;
+
+ /*
+ * Also need to fil in non-fastpath response address
+ * for middle path commands.
+ */
+ task_ctx->mstorm_st_context.non_fp.rsp_buf_addr.lo =
+ U64_LO(mp_req->mp_resp_bd_dma);
+ task_ctx->mstorm_st_context.non_fp.rsp_buf_addr.hi =
+ U64_HI(mp_req->mp_resp_bd_dma);
+ }
+ }
+
+ /* USTORM ONLY */
+ {
+ task_ctx->ustorm_ag_context.global_cq_num = 0;
+ }
+
+ /* I/O stats. Middle path commands always use slow SGEs */
+ qedf->slow_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_SLOW_SGE;
+}
+
+void qedf_add_to_sq(struct qedf_rport *fcport, u16 xid, u32 ptu_invalidate,
+ enum fcoe_task_type req_type, u32 offset)
+{
+ struct fcoe_wqe *sqe;
+ uint16_t total_sqe = (fcport->sq_mem_size)/(sizeof(struct fcoe_wqe));
+
+ sqe = &fcport->sq[fcport->sq_prod_idx];
+
+ fcport->sq_prod_idx++;
+ fcport->fw_sq_prod_idx++;
+ if (fcport->sq_prod_idx == total_sqe)
+ fcport->sq_prod_idx = 0;
+
+ switch (req_type) {
+ case FCOE_TASK_TYPE_WRITE_INITIATOR:
+ case FCOE_TASK_TYPE_READ_INITIATOR:
+ SET_FIELD(sqe->flags, FCOE_WQE_REQ_TYPE, SEND_FCOE_CMD);
+ if (ptu_invalidate)
+ SET_FIELD(sqe->flags, FCOE_WQE_INVALIDATE_PTU, 1);
+ break;
+ case FCOE_TASK_TYPE_MIDPATH:
+ SET_FIELD(sqe->flags, FCOE_WQE_REQ_TYPE, SEND_FCOE_MIDPATH);
+ break;
+ case FCOE_TASK_TYPE_ABTS:
+ SET_FIELD(sqe->flags, FCOE_WQE_REQ_TYPE,
+ SEND_FCOE_ABTS_REQUEST);
+ break;
+ case FCOE_TASK_TYPE_EXCHANGE_CLEANUP:
+ SET_FIELD(sqe->flags, FCOE_WQE_REQ_TYPE,
+ FCOE_EXCHANGE_CLEANUP);
+ break;
+ case FCOE_TASK_TYPE_SEQUENCE_CLEANUP:
+ SET_FIELD(sqe->flags, FCOE_WQE_REQ_TYPE,
+ FCOE_SEQUENCE_RECOVERY);
+ /* NOTE: offset param only used for sequence recovery */
+ sqe->additional_info_union.seq_rec_updated_offset = offset;
+ break;
+ case FCOE_TASK_TYPE_UNSOLICITED:
+ break;
+ default:
+ break;
+ }
+
+ sqe->task_id = xid;
+
+ /* Make sure SQ data is coherent */
+ wmb();
+
+}
+
+void qedf_ring_doorbell(struct qedf_rport *fcport)
+{
+ struct fcoe_db_data dbell = { 0 };
+
+ dbell.agg_flags = 0;
+
+ dbell.params |= DB_DEST_XCM << FCOE_DB_DATA_DEST_SHIFT;
+ dbell.params |= DB_AGG_CMD_SET << FCOE_DB_DATA_AGG_CMD_SHIFT;
+ dbell.params |= DQ_XCM_FCOE_SQ_PROD_CMD <<
+ FCOE_DB_DATA_AGG_VAL_SEL_SHIFT;
+
+ dbell.sq_prod = fcport->fw_sq_prod_idx;
+ writel(*(u32 *)&dbell, fcport->p_doorbell);
+ /* Make sure SQ index is updated so f/w prcesses requests in order */
+ wmb();
+ mmiowb();
+}
+
+static void qedf_trace_io(struct qedf_rport *fcport, struct qedf_ioreq *io_req,
+ int8_t direction)
+{
+ struct qedf_ctx *qedf = fcport->qedf;
+ struct qedf_io_log *io_log;
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ unsigned long flags;
+ uint8_t op;
+
+ spin_lock_irqsave(&qedf->io_trace_lock, flags);
+
+ io_log = &qedf->io_trace_buf[qedf->io_trace_idx];
+ io_log->direction = direction;
+ io_log->task_id = io_req->xid;
+ io_log->port_id = fcport->rdata->ids.port_id;
+ io_log->lun = sc_cmd->device->lun;
+ io_log->op = op = sc_cmd->cmnd[0];
+ io_log->lba[0] = sc_cmd->cmnd[2];
+ io_log->lba[1] = sc_cmd->cmnd[3];
+ io_log->lba[2] = sc_cmd->cmnd[4];
+ io_log->lba[3] = sc_cmd->cmnd[5];
+ io_log->bufflen = scsi_bufflen(sc_cmd);
+ io_log->sg_count = scsi_sg_count(sc_cmd);
+ io_log->result = sc_cmd->result;
+ io_log->jiffies = jiffies;
+ io_log->refcount = atomic_read(&io_req->refcount.refcount);
+
+ if (direction == QEDF_IO_TRACE_REQ) {
+ /* For requests we only care abot the submission CPU */
+ io_log->req_cpu = io_req->cpu;
+ io_log->int_cpu = 0;
+ io_log->rsp_cpu = 0;
+ } else if (direction == QEDF_IO_TRACE_RSP) {
+ io_log->req_cpu = io_req->cpu;
+ io_log->int_cpu = io_req->int_cpu;
+ io_log->rsp_cpu = smp_processor_id();
+ }
+
+ io_log->sge_type = io_req->sge_type;
+
+ qedf->io_trace_idx++;
+ if (qedf->io_trace_idx == QEDF_IO_TRACE_SIZE)
+ qedf->io_trace_idx = 0;
+
+ spin_unlock_irqrestore(&qedf->io_trace_lock, flags);
+}
+
+int qedf_post_io_req(struct qedf_rport *fcport, struct qedf_ioreq *io_req)
+{
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct Scsi_Host *host = sc_cmd->device->host;
+ struct fc_lport *lport = shost_priv(host);
+ struct qedf_ctx *qedf = lport_priv(lport);
+ struct fcoe_task_context *task_ctx;
+ u16 xid;
+ enum fcoe_task_type req_type = 0;
+ u32 ptu_invalidate = 0;
+
+ /* Initialize rest of io_req fileds */
+ io_req->data_xfer_len = scsi_bufflen(sc_cmd);
+ sc_cmd->SCp.ptr = (char *)io_req;
+ io_req->use_slowpath = false; /* Assume fast SGL by default */
+
+ /* Record which cpu this request is associated with */
+ io_req->cpu = smp_processor_id();
+
+ if (sc_cmd->sc_data_direction == DMA_FROM_DEVICE) {
+ req_type = FCOE_TASK_TYPE_READ_INITIATOR;
+ io_req->io_req_flags = QEDF_READ;
+ qedf->input_requests++;
+ } else if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) {
+ req_type = FCOE_TASK_TYPE_WRITE_INITIATOR;
+ io_req->io_req_flags = QEDF_WRITE;
+ qedf->output_requests++;
+ } else {
+ io_req->io_req_flags = 0;
+ qedf->control_requests++;
+ }
+
+ xid = io_req->xid;
+
+ /* Build buffer descriptor list for firmware from sg list */
+ if (qedf_build_bd_list_from_sg(io_req)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "BD list creation failed.\n");
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ return -EAGAIN;
+ }
+
+ /* Get the task context */
+ task_ctx = qedf_get_task_mem(&qedf->tasks, xid);
+ if (!task_ctx) {
+ QEDF_WARN(&(qedf->dbg_ctx), "task_ctx is NULL, xid=%d.\n",
+ xid);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ return -EINVAL;
+ }
+
+ qedf_init_task(fcport, lport, io_req, &ptu_invalidate, task_ctx);
+
+ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Session not offloaded yet.\n");
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ }
+
+ /* Obtain free SQ entry */
+ qedf_add_to_sq(fcport, xid, ptu_invalidate, req_type, 0);
+
+ /* Ring doorbell */
+ qedf_ring_doorbell(fcport);
+
+ if (qedf_io_tracing && io_req->sc_cmd)
+ qedf_trace_io(fcport, io_req, QEDF_IO_TRACE_REQ);
+
+ return false;
+}
+
+int
+qedf_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd)
+{
+ struct fc_lport *lport = shost_priv(host);
+ struct qedf_ctx *qedf = lport_priv(lport);
+ struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+ struct fc_rport_libfc_priv *rp = rport->dd_data;
+ struct qedf_rport *fcport = rport->dd_data;
+ struct qedf_ioreq *io_req;
+ int rc = 0;
+ int rval;
+ unsigned long flags = 0;
+
+
+ if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
+ sc_cmd->result = DID_NO_CONNECT << 16;
+ sc_cmd->scsi_done(sc_cmd);
+ return 0;
+ }
+
+ rval = fc_remote_port_chkready(rport);
+ if (rval) {
+ sc_cmd->result = rval;
+ sc_cmd->scsi_done(sc_cmd);
+ return 0;
+ }
+
+ /* Retry command if we are doing a qed drain operation */
+ if (test_bit(QEDF_DRAIN_ACTIVE, &qedf->flags)) {
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit_qcmd;
+ }
+
+ if (lport->state != LPORT_ST_READY ||
+ atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit_qcmd;
+ }
+
+ /* rport and tgt are allocated together, so tgt should be non-NULL */
+ fcport = (struct qedf_rport *)&rp[1];
+
+ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ /*
+ * Session is not offloaded yet. Let SCSI-ml retry
+ * the command.
+ */
+ rc = SCSI_MLQUEUE_TARGET_BUSY;
+ goto exit_qcmd;
+ }
+ if (fcport->retry_delay_timestamp) {
+ if (time_after(jiffies, fcport->retry_delay_timestamp)) {
+ fcport->retry_delay_timestamp = 0;
+ } else {
+ /* If retry_delay timer is active, flow off the ML */
+ rc = SCSI_MLQUEUE_TARGET_BUSY;
+ goto exit_qcmd;
+ }
+ }
+
+ io_req = qedf_alloc_cmd(fcport, QEDF_SCSI_CMD);
+ if (!io_req) {
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit_qcmd;
+ }
+
+ io_req->sc_cmd = sc_cmd;
+
+ /* Take fcport->rport_lock for posting to fcport send queue */
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+ if (qedf_post_io_req(fcport, io_req)) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Unable to post io_req\n");
+ /* Return SQE to pool */
+ atomic_inc(&fcport->free_sqes);
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ }
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+
+exit_qcmd:
+ return rc;
+}
+
+static void qedf_parse_fcp_rsp(struct qedf_ioreq *io_req,
+ struct fcoe_cqe_rsp_info *fcp_rsp)
+{
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct qedf_ctx *qedf = io_req->fcport->qedf;
+ u8 rsp_flags = fcp_rsp->rsp_flags.flags;
+ int fcp_sns_len = 0;
+ int fcp_rsp_len = 0;
+ uint8_t *rsp_info, *sense_data;
+
+ io_req->fcp_status = FC_GOOD;
+ io_req->fcp_resid = 0;
+ if (rsp_flags & (FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER |
+ FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER))
+ io_req->fcp_resid = fcp_rsp->fcp_resid;
+
+ io_req->scsi_comp_flags = rsp_flags;
+ CMD_SCSI_STATUS(sc_cmd) = io_req->cdb_status =
+ fcp_rsp->scsi_status_code;
+
+ if (rsp_flags &
+ FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID)
+ fcp_rsp_len = fcp_rsp->fcp_rsp_len;
+
+ if (rsp_flags &
+ FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID)
+ fcp_sns_len = fcp_rsp->fcp_sns_len;
+
+ io_req->fcp_rsp_len = fcp_rsp_len;
+ io_req->fcp_sns_len = fcp_sns_len;
+ rsp_info = sense_data = io_req->sense_buffer;
+
+ /* fetch fcp_rsp_code */
+ if ((fcp_rsp_len == 4) || (fcp_rsp_len == 8)) {
+ /* Only for task management function */
+ io_req->fcp_rsp_code = rsp_info[3];
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "fcp_rsp_code = %d\n", io_req->fcp_rsp_code);
+ /* Adjust sense-data location. */
+ sense_data += fcp_rsp_len;
+ }
+
+ if (fcp_sns_len > SCSI_SENSE_BUFFERSIZE) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Truncating sense buffer\n");
+ fcp_sns_len = SCSI_SENSE_BUFFERSIZE;
+ }
+
+ memset(sc_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
+ if (fcp_sns_len)
+ memcpy(sc_cmd->sense_buffer, sense_data,
+ fcp_sns_len);
+}
+
+static void qedf_unmap_sg_list(struct qedf_ctx *qedf, struct qedf_ioreq *io_req)
+{
+ struct scsi_cmnd *sc = io_req->sc_cmd;
+
+ if (io_req->bd_tbl->bd_valid && sc && scsi_sg_count(sc)) {
+ dma_unmap_sg(&qedf->pdev->dev, scsi_sglist(sc),
+ scsi_sg_count(sc), sc->sc_data_direction);
+ io_req->bd_tbl->bd_valid = 0;
+ }
+}
+
+void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ u16 xid, rval;
+ struct fcoe_task_context *task_ctx;
+ struct scsi_cmnd *sc_cmd;
+ struct fcoe_cqe_rsp_info *fcp_rsp;
+ struct qedf_rport *fcport;
+ int refcount;
+ u16 scope, qualifier = 0;
+ u8 fw_residual_flag = 0;
+
+ if (!io_req)
+ return;
+ if (!cqe)
+ return;
+
+ xid = io_req->xid;
+ task_ctx = qedf_get_task_mem(&qedf->tasks, xid);
+ sc_cmd = io_req->sc_cmd;
+ fcp_rsp = &cqe->cqe_info.rsp_info;
+
+ if (!sc_cmd) {
+ QEDF_WARN(&(qedf->dbg_ctx), "sc_cmd is NULL!\n");
+ return;
+ }
+
+ if (!sc_cmd->SCp.ptr) {
+ QEDF_WARN(&(qedf->dbg_ctx), "SCp.ptr is NULL, returned in "
+ "another context.\n");
+ return;
+ }
+
+ if (!sc_cmd->request) {
+ QEDF_WARN(&(qedf->dbg_ctx), "sc_cmd->request is NULL, "
+ "sc_cmd=%p.\n", sc_cmd);
+ return;
+ }
+
+ if (!sc_cmd->request->special) {
+ QEDF_WARN(&(qedf->dbg_ctx), "request->special is NULL so "
+ "request not valid, sc_cmd=%p.\n", sc_cmd);
+ return;
+ }
+
+ if (!sc_cmd->request->q) {
+ QEDF_WARN(&(qedf->dbg_ctx), "request->q is NULL so request "
+ "is not valid, sc_cmd=%p.\n", sc_cmd);
+ return;
+ }
+
+ fcport = io_req->fcport;
+
+ qedf_parse_fcp_rsp(io_req, fcp_rsp);
+
+ qedf_unmap_sg_list(qedf, io_req);
+
+ /* Check for FCP transport error */
+ if (io_req->fcp_rsp_len > 3 && io_req->fcp_rsp_code) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "FCP I/O protocol failure xid=0x%x fcp_rsp_len=%d "
+ "fcp_rsp_code=%d.\n", io_req->xid, io_req->fcp_rsp_len,
+ io_req->fcp_rsp_code);
+ sc_cmd->result = DID_BUS_BUSY << 16;
+ goto out;
+ }
+
+ fw_residual_flag = GET_FIELD(cqe->cqe_info.rsp_info.fw_error_flags,
+ FCOE_CQE_RSP_INFO_FW_UNDERRUN);
+ if (fw_residual_flag) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "Firmware detected underrun: xid=0x%x fcp_rsp.flags=0x%02x "
+ "fcp_resid=%d fw_residual=0x%x.\n", io_req->xid,
+ fcp_rsp->rsp_flags.flags, io_req->fcp_resid,
+ cqe->cqe_info.rsp_info.fw_residual);
+
+ if (io_req->cdb_status == 0)
+ sc_cmd->result = (DID_ERROR << 16) | io_req->cdb_status;
+ else
+ sc_cmd->result = (DID_OK << 16) | io_req->cdb_status;
+
+ /* Abort the command since we did not get all the data */
+ init_completion(&io_req->abts_done);
+ rval = qedf_initiate_abts(io_req, true);
+ if (rval) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
+ sc_cmd->result = (DID_ERROR << 16) | io_req->cdb_status;
+ }
+
+ /*
+ * Set resid to the whole buffer length so we won't try to resue
+ * any previously data.
+ */
+ scsi_set_resid(sc_cmd, scsi_bufflen(sc_cmd));
+ goto out;
+ }
+
+ switch (io_req->fcp_status) {
+ case FC_GOOD:
+ if (io_req->cdb_status == 0) {
+ /* Good I/O completion */
+ sc_cmd->result = DID_OK << 16;
+ } else {
+ refcount = atomic_read(&io_req->refcount.refcount);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "%d:0:%d:%d xid=0x%0x op=0x%02x "
+ "lba=%02x%02x%02x%02x cdb_status=%d "
+ "fcp_resid=0x%x refcount=%d.\n",
+ qedf->lport->host->host_no, sc_cmd->device->id,
+ sc_cmd->device->lun, io_req->xid,
+ sc_cmd->cmnd[0], sc_cmd->cmnd[2], sc_cmd->cmnd[3],
+ sc_cmd->cmnd[4], sc_cmd->cmnd[5],
+ io_req->cdb_status, io_req->fcp_resid,
+ refcount);
+ sc_cmd->result = (DID_OK << 16) | io_req->cdb_status;
+
+ if (io_req->cdb_status == SAM_STAT_TASK_SET_FULL ||
+ io_req->cdb_status == SAM_STAT_BUSY) {
+ /*
+ * Check whether we need to set retry_delay at
+ * all based on retry_delay module parameter
+ * and the status qualifier.
+ */
+
+ /* Upper 2 bits */
+ scope = fcp_rsp->retry_delay_timer & 0xC000;
+ /* Lower 14 bits */
+ qualifier = fcp_rsp->retry_delay_timer & 0x3FFF;
+
+ if (qedf_retry_delay &&
+ scope > 0 && qualifier > 0 &&
+ qualifier <= 0x3FEF) {
+ /* Check we don't go over the max */
+ if (qualifier > QEDF_RETRY_DELAY_MAX)
+ qualifier =
+ QEDF_RETRY_DELAY_MAX;
+ fcport->retry_delay_timestamp =
+ jiffies + (qualifier * HZ / 10);
+ }
+ }
+ }
+ if (io_req->fcp_resid)
+ scsi_set_resid(sc_cmd, io_req->fcp_resid);
+ break;
+ default:
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "fcp_status=%d.\n",
+ io_req->fcp_status);
+ break;
+ }
+
+out:
+ if (qedf_io_tracing)
+ qedf_trace_io(fcport, io_req, QEDF_IO_TRACE_RSP);
+
+ io_req->sc_cmd = NULL;
+ sc_cmd->SCp.ptr = NULL;
+ sc_cmd->scsi_done(sc_cmd);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+}
+
+/* Return a SCSI command in some other context besides a normal completion */
+void qedf_scsi_done(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
+ int result)
+{
+ u16 xid;
+ struct scsi_cmnd *sc_cmd;
+ int refcount;
+
+ if (!io_req)
+ return;
+
+ xid = io_req->xid;
+ sc_cmd = io_req->sc_cmd;
+
+ if (!sc_cmd) {
+ QEDF_WARN(&(qedf->dbg_ctx), "sc_cmd is NULL!\n");
+ return;
+ }
+
+ if (!sc_cmd->SCp.ptr) {
+ QEDF_WARN(&(qedf->dbg_ctx), "SCp.ptr is NULL, returned in "
+ "another context.\n");
+ return;
+ }
+
+ qedf_unmap_sg_list(qedf, io_req);
+
+ sc_cmd->result = result << 16;
+ refcount = atomic_read(&io_req->refcount.refcount);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "%d:0:%d:%d: Completing "
+ "sc_cmd=%p result=0x%08x op=0x%02x lba=0x%02x%02x%02x%02x, "
+ "allowed=%d retries=%d refcount=%d.\n",
+ qedf->lport->host->host_no, sc_cmd->device->id,
+ sc_cmd->device->lun, sc_cmd, sc_cmd->result, sc_cmd->cmnd[0],
+ sc_cmd->cmnd[2], sc_cmd->cmnd[3], sc_cmd->cmnd[4],
+ sc_cmd->cmnd[5], sc_cmd->allowed, sc_cmd->retries,
+ refcount);
+
+ /*
+ * Set resid to the whole buffer length so we won't try to resue any
+ * previously read data
+ */
+ scsi_set_resid(sc_cmd, scsi_bufflen(sc_cmd));
+
+ if (qedf_io_tracing)
+ qedf_trace_io(io_req->fcport, io_req, QEDF_IO_TRACE_RSP);
+
+ io_req->sc_cmd = NULL;
+ sc_cmd->SCp.ptr = NULL;
+ sc_cmd->scsi_done(sc_cmd);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+}
+
+/*
+ * Handle warning type CQE completions. This is mainly used for REC timer
+ * popping.
+ */
+void qedf_process_warning_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ int rval, i;
+ struct qedf_rport *fcport = io_req->fcport;
+ u64 err_warn_bit_map;
+ u8 err_warn = 0xff;
+
+ if (!cqe)
+ return;
+
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx), "Warning CQE, "
+ "xid=0x%x\n", io_req->xid);
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx),
+ "err_warn_bitmap=%08x:%08x\n",
+ le32_to_cpu(cqe->cqe_info.err_info.err_warn_bitmap_hi),
+ le32_to_cpu(cqe->cqe_info.err_info.err_warn_bitmap_lo));
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx), "tx_buff_off=%08x, "
+ "rx_buff_off=%08x, rx_id=%04x\n",
+ le32_to_cpu(cqe->cqe_info.err_info.tx_buf_off),
+ le32_to_cpu(cqe->cqe_info.err_info.rx_buf_off),
+ le32_to_cpu(cqe->cqe_info.err_info.rx_id));
+
+ /* Normalize the error bitmap value to an just an unsigned int */
+ err_warn_bit_map = (u64)
+ ((u64)cqe->cqe_info.err_info.err_warn_bitmap_hi << 32) |
+ (u64)cqe->cqe_info.err_info.err_warn_bitmap_lo;
+ for (i = 0; i < 64; i++) {
+ if (err_warn_bit_map & (u64)((u64)1 << i)) {
+ err_warn = i;
+ break;
+ }
+ }
+
+ /* Check if REC TOV expired if this is a tape device */
+ if (fcport->dev_type == QEDF_RPORT_TYPE_TAPE) {
+ if (err_warn ==
+ FCOE_WARNING_CODE_REC_TOV_TIMER_EXPIRATION) {
+ QEDF_ERR(&(qedf->dbg_ctx), "REC timer expired.\n");
+ if (!test_bit(QEDF_CMD_SRR_SENT, &io_req->flags)) {
+ io_req->rx_buf_off =
+ cqe->cqe_info.err_info.rx_buf_off;
+ io_req->tx_buf_off =
+ cqe->cqe_info.err_info.tx_buf_off;
+ io_req->rx_id = cqe->cqe_info.err_info.rx_id;
+ rval = qedf_send_rec(io_req);
+ /*
+ * We only want to abort the io_req if we
+ * can't queue the REC command as we want to
+ * keep the exchange open for recovery.
+ */
+ if (rval)
+ goto send_abort;
+ }
+ return;
+ }
+ }
+
+send_abort:
+ init_completion(&io_req->abts_done);
+ rval = qedf_initiate_abts(io_req, true);
+ if (rval)
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
+}
+
+/* Cleanup a command when we receive an error detection completion */
+void qedf_process_error_detect(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ int rval;
+
+ if (!cqe)
+ return;
+
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx), "Error detection CQE, "
+ "xid=0x%x\n", io_req->xid);
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx),
+ "err_warn_bitmap=%08x:%08x\n",
+ le32_to_cpu(cqe->cqe_info.err_info.err_warn_bitmap_hi),
+ le32_to_cpu(cqe->cqe_info.err_info.err_warn_bitmap_lo));
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx), "tx_buff_off=%08x, "
+ "rx_buff_off=%08x, rx_id=%04x\n",
+ le32_to_cpu(cqe->cqe_info.err_info.tx_buf_off),
+ le32_to_cpu(cqe->cqe_info.err_info.rx_buf_off),
+ le32_to_cpu(cqe->cqe_info.err_info.rx_id));
+
+ if (qedf->stop_io_on_error) {
+ qedf_stop_all_io(qedf);
+ return;
+ }
+
+ init_completion(&io_req->abts_done);
+ rval = qedf_initiate_abts(io_req, true);
+ if (rval)
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
+}
+
+static void qedf_flush_els_req(struct qedf_ctx *qedf,
+ struct qedf_ioreq *els_req)
+{
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Flushing ELS request xid=0x%x refcount=%d.\n", els_req->xid,
+ atomic_read(&els_req->refcount.refcount));
+
+ /*
+ * Need to distinguish this from a timeout when calling the
+ * els_req->cb_func.
+ */
+ els_req->event = QEDF_IOREQ_EV_ELS_FLUSH;
+
+ /* Cancel the timer */
+ cancel_delayed_work_sync(&els_req->timeout_work);
+
+ /* Call callback function to complete command */
+ if (els_req->cb_func && els_req->cb_arg) {
+ els_req->cb_func(els_req->cb_arg);
+ els_req->cb_arg = NULL;
+ }
+
+ /* Release kref for original initiate_els */
+ kref_put(&els_req->refcount, qedf_release_cmd);
+}
+
+/* A value of -1 for lun is a wild card that means flush all
+ * active SCSI I/Os for the target.
+ */
+void qedf_flush_active_ios(struct qedf_rport *fcport, int lun)
+{
+ struct qedf_ioreq *io_req;
+ struct qedf_ctx *qedf;
+ struct qedf_cmd_mgr *cmd_mgr;
+ int i, rc;
+
+ if (!fcport)
+ return;
+
+ qedf = fcport->qedf;
+ cmd_mgr = qedf->cmd_mgr;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "Flush active i/o's.\n");
+
+ for (i = 0; i < FCOE_PARAMS_NUM_TASKS; i++) {
+ io_req = &cmd_mgr->cmds[i];
+
+ if (!io_req)
+ continue;
+ if (io_req->fcport != fcport)
+ continue;
+ if (io_req->cmd_type == QEDF_ELS) {
+ rc = kref_get_unless_zero(&io_req->refcount);
+ if (!rc) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "Could not get kref for io_req=0x%p.\n",
+ io_req);
+ continue;
+ }
+ qedf_flush_els_req(qedf, io_req);
+ /*
+ * Release the kref and go back to the top of the
+ * loop.
+ */
+ goto free_cmd;
+ }
+
+ if (!io_req->sc_cmd)
+ continue;
+ if (lun > 0) {
+ if (io_req->sc_cmd->device->lun !=
+ (u64)lun)
+ continue;
+ }
+
+ /*
+ * Use kref_get_unless_zero in the unlikely case the command
+ * we're about to flush was completed in the normal SCSI path
+ */
+ rc = kref_get_unless_zero(&io_req->refcount);
+ if (!rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not get kref for "
+ "io_req=0x%p\n", io_req);
+ continue;
+ }
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Cleanup xid=0x%x.\n", io_req->xid);
+
+ /* Cleanup task and return I/O mid-layer */
+ qedf_initiate_cleanup(io_req, true);
+
+free_cmd:
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ }
+}
+
+/*
+ * Initiate a ABTS middle path command. Note that we don't have to initialize
+ * the task context for an ABTS task.
+ */
+int qedf_initiate_abts(struct qedf_ioreq *io_req, bool return_scsi_cmd_on_abts)
+{
+ struct fc_lport *lport;
+ struct qedf_rport *fcport = io_req->fcport;
+ struct fc_rport_priv *rdata = fcport->rdata;
+ struct qedf_ctx *qedf = fcport->qedf;
+ u16 xid;
+ u32 r_a_tov = 0;
+ int rc = 0;
+ unsigned long flags;
+
+ r_a_tov = rdata->r_a_tov;
+ lport = qedf->lport;
+
+ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "tgt not offloaded\n");
+ rc = 1;
+ goto abts_err;
+ }
+
+ if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "link is not ready\n");
+ rc = 1;
+ goto abts_err;
+ }
+
+ if (atomic_read(&qedf->link_down_tmo_valid) > 0) {
+ QEDF_ERR(&(qedf->dbg_ctx), "link_down_tmo active.\n");
+ rc = 1;
+ goto abts_err;
+ }
+
+ /* Ensure room on SQ */
+ if (!atomic_read(&fcport->free_sqes)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "No SQ entries available\n");
+ rc = 1;
+ goto abts_err;
+ }
+
+
+ kref_get(&io_req->refcount);
+
+ xid = io_req->xid;
+ qedf->control_requests++;
+ qedf->packet_aborts++;
+
+ /* Set the return CPU to be the same as the request one */
+ io_req->cpu = smp_processor_id();
+
+ /* Set the command type to abort */
+ io_req->cmd_type = QEDF_ABTS;
+ io_req->return_scsi_cmd_on_abts = return_scsi_cmd_on_abts;
+
+ set_bit(QEDF_CMD_IN_ABORT, &io_req->flags);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM, "ABTS io_req xid = "
+ "0x%x\n", xid);
+
+ qedf_cmd_timer_set(qedf, io_req, QEDF_ABORT_TIMEOUT * HZ);
+
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+
+ /* Add ABTS to send queue */
+ qedf_add_to_sq(fcport, xid, 0, FCOE_TASK_TYPE_ABTS, 0);
+
+ /* Ring doorbell */
+ qedf_ring_doorbell(fcport);
+
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+
+ return rc;
+abts_err:
+ /*
+ * If the ABTS task fails to queue then we need to cleanup the
+ * task at the firmware.
+ */
+ qedf_initiate_cleanup(io_req, return_scsi_cmd_on_abts);
+ return rc;
+}
+
+void qedf_process_abts_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ uint32_t r_ctl;
+ uint16_t xid;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM, "Entered with xid = "
+ "0x%x cmd_type = %d\n", io_req->xid, io_req->cmd_type);
+
+ cancel_delayed_work(&io_req->timeout_work);
+
+ xid = io_req->xid;
+ r_ctl = cqe->cqe_info.abts_info.r_ctl;
+
+ switch (r_ctl) {
+ case FC_RCTL_BA_ACC:
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM,
+ "ABTS response - ACC Send RRQ after R_A_TOV\n");
+ io_req->event = QEDF_IOREQ_EV_ABORT_SUCCESS;
+ /*
+ * Dont release this cmd yet. It will be relesed
+ * after we get RRQ response
+ */
+ kref_get(&io_req->refcount);
+ queue_delayed_work(qedf->dpc_wq, &io_req->rrq_work,
+ msecs_to_jiffies(qedf->lport->r_a_tov));
+ break;
+ /* For error cases let the cleanup return the command */
+ case FC_RCTL_BA_RJT:
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM,
+ "ABTS response - RJT\n");
+ io_req->event = QEDF_IOREQ_EV_ABORT_FAILED;
+ break;
+ default:
+ QEDF_ERR(&(qedf->dbg_ctx), "Unknown ABTS response\n");
+ break;
+ }
+
+ clear_bit(QEDF_CMD_IN_ABORT, &io_req->flags);
+
+ if (io_req->sc_cmd) {
+ if (io_req->return_scsi_cmd_on_abts)
+ qedf_scsi_done(qedf, io_req, DID_ERROR);
+ }
+
+ /* Notify eh_abort handler that ABTS is complete */
+ complete(&io_req->abts_done);
+
+ kref_put(&io_req->refcount, qedf_release_cmd);
+}
+
+int qedf_init_mp_req(struct qedf_ioreq *io_req)
+{
+ struct qedf_mp_req *mp_req;
+ struct fcoe_sge *mp_req_bd;
+ struct fcoe_sge *mp_resp_bd;
+ struct qedf_ctx *qedf = io_req->fcport->qedf;
+ dma_addr_t addr;
+ uint64_t sz;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_MP_REQ, "Entered.\n");
+
+ mp_req = (struct qedf_mp_req *)&(io_req->mp_req);
+ memset(mp_req, 0, sizeof(struct qedf_mp_req));
+
+ if (io_req->cmd_type != QEDF_ELS) {
+ mp_req->req_len = sizeof(struct fcp_cmnd);
+ io_req->data_xfer_len = mp_req->req_len;
+ } else
+ mp_req->req_len = io_req->data_xfer_len;
+
+ mp_req->req_buf = dma_alloc_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
+ &mp_req->req_buf_dma, GFP_KERNEL);
+ if (!mp_req->req_buf) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to alloc MP req buffer\n");
+ qedf_free_mp_resc(io_req);
+ return -ENOMEM;
+ }
+
+ mp_req->resp_buf = dma_alloc_coherent(&qedf->pdev->dev,
+ QEDF_PAGE_SIZE, &mp_req->resp_buf_dma, GFP_KERNEL);
+ if (!mp_req->resp_buf) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to alloc TM resp "
+ "buffer\n");
+ qedf_free_mp_resc(io_req);
+ return -ENOMEM;
+ }
+
+ /* Allocate and map mp_req_bd and mp_resp_bd */
+ sz = sizeof(struct fcoe_sge);
+ mp_req->mp_req_bd = dma_alloc_coherent(&qedf->pdev->dev, sz,
+ &mp_req->mp_req_bd_dma, GFP_KERNEL);
+ if (!mp_req->mp_req_bd) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to alloc MP req bd\n");
+ qedf_free_mp_resc(io_req);
+ return -ENOMEM;
+ }
+
+ mp_req->mp_resp_bd = dma_alloc_coherent(&qedf->pdev->dev, sz,
+ &mp_req->mp_resp_bd_dma, GFP_KERNEL);
+ if (!mp_req->mp_resp_bd) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to alloc MP resp bd\n");
+ qedf_free_mp_resc(io_req);
+ return -ENOMEM;
+ }
+
+ /* Fill bd table */
+ addr = mp_req->req_buf_dma;
+ mp_req_bd = mp_req->mp_req_bd;
+ mp_req_bd->sge_addr.lo = U64_LO(addr);
+ mp_req_bd->sge_addr.hi = U64_HI(addr);
+ mp_req_bd->size = QEDF_PAGE_SIZE;
+
+ /*
+ * MP buffer is either a task mgmt command or an ELS.
+ * So the assumption is that it consumes a single bd
+ * entry in the bd table
+ */
+ mp_resp_bd = mp_req->mp_resp_bd;
+ addr = mp_req->resp_buf_dma;
+ mp_resp_bd->sge_addr.lo = U64_LO(addr);
+ mp_resp_bd->sge_addr.hi = U64_HI(addr);
+ mp_resp_bd->size = QEDF_PAGE_SIZE;
+
+ return 0;
+}
+
+/*
+ * Last ditch effort to clear the port if it's stuck. Used only after a
+ * cleanup task times out.
+ */
+static void qedf_drain_request(struct qedf_ctx *qedf)
+{
+ if (test_bit(QEDF_DRAIN_ACTIVE, &qedf->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "MCP drain already active.\n");
+ return;
+ }
+
+ /* Set bit to return all queuecommand requests as busy */
+ set_bit(QEDF_DRAIN_ACTIVE, &qedf->flags);
+
+ /* Call qed drain request for function. Should be synchronous */
+ qed_ops->common->drain(qedf->cdev);
+
+ /* Settle time for CQEs to be returned */
+ msleep(100);
+
+ /* Unplug and continue */
+ clear_bit(QEDF_DRAIN_ACTIVE, &qedf->flags);
+}
+
+/*
+ * Returns SUCCESS if the cleanup task does not timeout, otherwise return
+ * FAILURE.
+ */
+int qedf_initiate_cleanup(struct qedf_ioreq *io_req,
+ bool return_scsi_cmd_on_abts)
+{
+ struct qedf_rport *fcport;
+ struct qedf_ctx *qedf;
+ uint16_t xid;
+ struct fcoe_task_context *task;
+ int tmo = 0;
+ int rc = SUCCESS;
+ unsigned long flags;
+
+ fcport = io_req->fcport;
+ if (!fcport) {
+ QEDF_ERR(NULL, "fcport is NULL.\n");
+ return SUCCESS;
+ }
+
+ qedf = fcport->qedf;
+ if (!qedf) {
+ QEDF_ERR(NULL, "qedf is NULL.\n");
+ return SUCCESS;
+ }
+
+ if (!test_bit(QEDF_CMD_OUTSTANDING, &io_req->flags) ||
+ test_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "io_req xid=0x%x already in "
+ "cleanup processing or already completed.\n",
+ io_req->xid);
+ return SUCCESS;
+ }
+
+ /* Ensure room on SQ */
+ if (!atomic_read(&fcport->free_sqes)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "No SQ entries available\n");
+ return FAILED;
+ }
+
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "Entered xid=0x%x\n",
+ io_req->xid);
+
+ /* Cleanup cmds re-use the same TID as the original I/O */
+ xid = io_req->xid;
+ io_req->cmd_type = QEDF_CLEANUP;
+ io_req->return_scsi_cmd_on_abts = return_scsi_cmd_on_abts;
+
+ /* Set the return CPU to be the same as the request one */
+ io_req->cpu = smp_processor_id();
+
+ set_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags);
+
+ task = qedf_get_task_mem(&qedf->tasks, xid);
+
+ init_completion(&io_req->tm_done);
+
+ /* Obtain free SQ entry */
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+ qedf_add_to_sq(fcport, xid, 0, FCOE_TASK_TYPE_EXCHANGE_CLEANUP, 0);
+
+ /* Ring doorbell */
+ qedf_ring_doorbell(fcport);
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+
+ tmo = wait_for_completion_timeout(&io_req->tm_done,
+ QEDF_CLEANUP_TIMEOUT * HZ);
+
+ if (!tmo) {
+ rc = FAILED;
+ /* Timeout case */
+ QEDF_ERR(&(qedf->dbg_ctx), "Cleanup command timeout, "
+ "xid=%x.\n", io_req->xid);
+ clear_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags);
+ /* Issue a drain request if cleanup task times out */
+ QEDF_ERR(&(qedf->dbg_ctx), "Issuing MCP drain request.\n");
+ qedf_drain_request(qedf);
+ }
+
+ if (io_req->sc_cmd) {
+ if (io_req->return_scsi_cmd_on_abts)
+ qedf_scsi_done(qedf, io_req, DID_ERROR);
+ }
+
+ if (rc == SUCCESS)
+ io_req->event = QEDF_IOREQ_EV_CLEANUP_SUCCESS;
+ else
+ io_req->event = QEDF_IOREQ_EV_CLEANUP_FAILED;
+
+ return rc;
+}
+
+void qedf_process_cleanup_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "Entered xid = 0x%x\n",
+ io_req->xid);
+
+ clear_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags);
+
+ /* Complete so we can finish cleaning up the I/O */
+ complete(&io_req->tm_done);
+}
+
+static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd,
+ uint8_t tm_flags)
+{
+ struct qedf_ioreq *io_req;
+ struct qedf_mp_req *tm_req;
+ struct fcoe_task_context *task;
+ struct fc_frame_header *fc_hdr;
+ struct fcp_cmnd *fcp_cmnd;
+ struct qedf_ctx *qedf = fcport->qedf;
+ int rc = 0;
+ uint16_t xid;
+ uint32_t sid, did;
+ int tmo = 0;
+ unsigned long flags;
+
+ if (!sc_cmd) {
+ QEDF_ERR(&(qedf->dbg_ctx), "invalid arg\n");
+ return FAILED;
+ }
+
+ if (!(test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))) {
+ QEDF_ERR(&(qedf->dbg_ctx), "fcport not offloaded\n");
+ rc = FAILED;
+ return FAILED;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM, "portid = 0x%x "
+ "tm_flags = %d\n", fcport->rdata->ids.port_id, tm_flags);
+
+ io_req = qedf_alloc_cmd(fcport, QEDF_TASK_MGMT_CMD);
+ if (!io_req) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed TMF");
+ rc = -EAGAIN;
+ goto reset_tmf_err;
+ }
+
+ /* Initialize rest of io_req fields */
+ io_req->sc_cmd = sc_cmd;
+ io_req->fcport = fcport;
+ io_req->cmd_type = QEDF_TASK_MGMT_CMD;
+
+ /* Set the return CPU to be the same as the request one */
+ io_req->cpu = smp_processor_id();
+
+ tm_req = (struct qedf_mp_req *)&(io_req->mp_req);
+
+ rc = qedf_init_mp_req(io_req);
+ if (rc == FAILED) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Task mgmt MP request init "
+ "failed\n");
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ goto reset_tmf_err;
+ }
+
+ /* Set TM flags */
+ io_req->io_req_flags = 0;
+ tm_req->tm_flags = tm_flags;
+
+ /* Default is to return a SCSI command when an error occurs */
+ io_req->return_scsi_cmd_on_abts = true;
+
+ /* Fill FCP_CMND */
+ qedf_build_fcp_cmnd(io_req, (struct fcp_cmnd *)tm_req->req_buf);
+ fcp_cmnd = (struct fcp_cmnd *)tm_req->req_buf;
+ memset(fcp_cmnd->fc_cdb, 0, FCP_CMND_LEN);
+ fcp_cmnd->fc_dl = 0;
+
+ /* Fill FC header */
+ fc_hdr = &(tm_req->req_fc_hdr);
+ sid = fcport->sid;
+ did = fcport->rdata->ids.port_id;
+ __fc_fill_fc_hdr(fc_hdr, FC_RCTL_DD_UNSOL_CMD, sid, did,
+ FC_TYPE_FCP, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
+ FC_FC_SEQ_INIT, 0);
+ /* Obtain exchange id */
+ xid = io_req->xid;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM, "TMF io_req xid = "
+ "0x%x\n", xid);
+
+ /* Initialize task context for this IO request */
+ task = qedf_get_task_mem(&qedf->tasks, xid);
+ qedf_init_mp_task(io_req, task);
+
+ init_completion(&io_req->tm_done);
+
+ /* Obtain free SQ entry */
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+ qedf_add_to_sq(fcport, xid, 0, FCOE_TASK_TYPE_MIDPATH, 0);
+
+ /* Ring doorbell */
+ qedf_ring_doorbell(fcport);
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+
+ tmo = wait_for_completion_timeout(&io_req->tm_done,
+ QEDF_TM_TIMEOUT * HZ);
+
+ if (!tmo) {
+ rc = FAILED;
+ QEDF_ERR(&(qedf->dbg_ctx), "wait for tm_cmpl timeout!\n");
+ } else {
+ /* Check TMF response code */
+ if (io_req->fcp_rsp_code == 0)
+ rc = SUCCESS;
+ else
+ rc = FAILED;
+ }
+
+ if (tm_flags == FCP_TMF_LUN_RESET)
+ qedf_flush_active_ios(fcport, (int)sc_cmd->device->lun);
+ else
+ qedf_flush_active_ios(fcport, -1);
+
+ kref_put(&io_req->refcount, qedf_release_cmd);
+
+ if (rc != SUCCESS) {
+ QEDF_ERR(&(qedf->dbg_ctx), "task mgmt command failed...\n");
+ rc = FAILED;
+ } else {
+ QEDF_ERR(&(qedf->dbg_ctx), "task mgmt command success...\n");
+ rc = SUCCESS;
+ }
+reset_tmf_err:
+ return rc;
+}
+
+int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags)
+{
+ struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+ struct fc_rport_libfc_priv *rp = rport->dd_data;
+ struct qedf_rport *fcport = (struct qedf_rport *)&rp[1];
+ struct qedf_ctx *qedf;
+ struct fc_lport *lport;
+ int rc = SUCCESS;
+ int rval;
+
+ rval = fc_remote_port_chkready(rport);
+
+ if (rval) {
+ QEDF_ERR(NULL, "device_reset rport not ready\n");
+ rc = FAILED;
+ goto tmf_err;
+ }
+
+ if (fcport == NULL) {
+ QEDF_ERR(NULL, "device_reset: rport is NULL\n");
+ rc = FAILED;
+ goto tmf_err;
+ }
+
+ qedf = fcport->qedf;
+ lport = qedf->lport;
+
+ if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
+ rc = SUCCESS;
+ goto tmf_err;
+ }
+
+ if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "link is not ready\n");
+ rc = FAILED;
+ goto tmf_err;
+ }
+
+ rc = qedf_execute_tmf(fcport, sc_cmd, tm_flags);
+
+tmf_err:
+ return rc;
+}
+
+void qedf_process_tmf_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ struct fcoe_cqe_rsp_info *fcp_rsp;
+ struct fcoe_cqe_midpath_info *mp_info;
+
+
+ /* Get TMF response length from CQE */
+ mp_info = &cqe->cqe_info.midpath_info;
+ io_req->mp_req.resp_len = mp_info->data_placement_size;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM,
+ "Response len is %d.\n", io_req->mp_req.resp_len);
+
+ fcp_rsp = &cqe->cqe_info.rsp_info;
+ qedf_parse_fcp_rsp(io_req, fcp_rsp);
+
+ io_req->sc_cmd = NULL;
+ complete(&io_req->tm_done);
+}
+
+void qedf_process_unsol_compl(struct qedf_ctx *qedf, uint16_t que_idx,
+ struct fcoe_cqe *cqe)
+{
+ unsigned long flags;
+ uint16_t tmp;
+ uint16_t pktlen = cqe->cqe_info.unsolic_info.pkt_len;
+ u32 payload_len, crc;
+ struct fc_frame_header *fh;
+ struct fc_frame *fp;
+ struct qedf_io_work *io_work;
+ u32 bdq_idx;
+ void *bdq_addr;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_UNSOL,
+ "address.hi=%x address.lo=%x opaque_data.hi=%x "
+ "opaque_data.lo=%x bdq_prod_idx=%u len=%u.\n",
+ le32_to_cpu(cqe->cqe_info.unsolic_info.bd_info.address.hi),
+ le32_to_cpu(cqe->cqe_info.unsolic_info.bd_info.address.lo),
+ le32_to_cpu(cqe->cqe_info.unsolic_info.bd_info.opaque.hi),
+ le32_to_cpu(cqe->cqe_info.unsolic_info.bd_info.opaque.lo),
+ qedf->bdq_prod_idx, pktlen);
+
+ bdq_idx = le32_to_cpu(cqe->cqe_info.unsolic_info.bd_info.opaque.lo);
+ if (bdq_idx >= QEDF_BDQ_SIZE) {
+ QEDF_ERR(&(qedf->dbg_ctx), "bdq_idx is out of range %d.\n",
+ bdq_idx);
+ goto increment_prod;
+ }
+
+ bdq_addr = qedf->bdq[bdq_idx].buf_addr;
+ if (!bdq_addr) {
+ QEDF_ERR(&(qedf->dbg_ctx), "bdq_addr is NULL, dropping "
+ "unsolicited packet.\n");
+ goto increment_prod;
+ }
+
+ if (qedf_dump_frames) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_UNSOL,
+ "BDQ frame is at addr=%p.\n", bdq_addr);
+ print_hex_dump(KERN_WARNING, "bdq ", DUMP_PREFIX_OFFSET, 16, 1,
+ (void *)bdq_addr, pktlen, false);
+ }
+
+ /* Allocate frame */
+ payload_len = pktlen - sizeof(struct fc_frame_header);
+ fp = fc_frame_alloc(qedf->lport, payload_len);
+ if (!fp) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate fp.\n");
+ goto increment_prod;
+ }
+
+ /* Copy data from BDQ buffer into fc_frame struct */
+ fh = (struct fc_frame_header *)fc_frame_header_get(fp);
+ memcpy(fh, (void *)bdq_addr, pktlen);
+
+ /* Initialize the frame so libfc sees it as a valid frame */
+ crc = fcoe_fc_crc(fp);
+ fc_frame_init(fp);
+ fr_dev(fp) = qedf->lport;
+ fr_sof(fp) = FC_SOF_I3;
+ fr_eof(fp) = FC_EOF_T;
+ fr_crc(fp) = cpu_to_le32(~crc);
+
+ /*
+ * We need to return the frame back up to libfc in a non-atomic
+ * context
+ */
+ io_work = mempool_alloc(qedf->io_mempool, GFP_ATOMIC);
+ if (!io_work) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
+ "work for I/O completion.\n");
+ fc_frame_free(fp);
+ goto increment_prod;
+ }
+ memset(io_work, 0, sizeof(struct qedf_io_work));
+
+ INIT_WORK(&io_work->work, qedf_fp_io_handler);
+
+ /* Copy contents of CQE for deferred processing */
+ memcpy(&io_work->cqe, cqe, sizeof(struct fcoe_cqe));
+
+ io_work->qedf = qedf;
+ io_work->fp = fp;
+
+ queue_work_on(smp_processor_id(), qedf_io_wq, &io_work->work);
+increment_prod:
+ spin_lock_irqsave(&qedf->hba_lock, flags);
+
+ /* Increment producer to let f/w know we've handled the frame */
+ qedf->bdq_prod_idx++;
+
+ /* Producer index wraps at uint16_t boundary */
+ if (qedf->bdq_prod_idx == 0xffff)
+ qedf->bdq_prod_idx = 0;
+
+ writew(qedf->bdq_prod_idx, qedf->bdq_primary_prod);
+ tmp = readw(qedf->bdq_primary_prod);
+ writew(qedf->bdq_prod_idx, qedf->bdq_secondary_prod);
+ tmp = readw(qedf->bdq_secondary_prod);
+
+ spin_unlock_irqrestore(&qedf->hba_lock, flags);
+}
diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
new file mode 100644
index 0000000..9efbafb
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -0,0 +1,3335 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/device.h>
+#include <linux/highmem.h>
+#include <linux/crc32.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/kthread.h>
+#include <scsi/libfc.h>
+#include <scsi/scsi_host.h>
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <linux/cpu.h>
+#include "qedf.h"
+
+const struct qed_fcoe_ops *qed_ops;
+
+static int qedf_probe(struct pci_dev *pdev, const struct pci_device_id *id);
+static void qedf_remove(struct pci_dev *pdev);
+
+extern struct qedf_debugfs_ops qedf_debugfs_ops;
+extern struct file_operations qedf_dbg_fops;
+
+/*
+ * Driver module parameters.
+ */
+static unsigned int qedf_dev_loss_tmo = 60;
+module_param_named(dev_loss_tmo, qedf_dev_loss_tmo, int, S_IRUGO);
+MODULE_PARM_DESC(dev_loss_tmo, " dev_loss_tmo setting for attached "
+ "remote ports (default 60)");
+
+uint qedf_debug = QEDF_LOG_INFO;
+module_param_named(debug, qedf_debug, uint, S_IRUGO);
+MODULE_PARM_DESC(qedf_debug, " Debug mask. Pass '1' to enable default debugging"
+ " mask");
+
+static uint qedf_fipvlan_retries = 30;
+module_param_named(fipvlan_retries, qedf_fipvlan_retries, int, S_IRUGO);
+MODULE_PARM_DESC(fipvlan_retries, " Number of FIP VLAN requests to attempt "
+ "before giving up (default 30)");
+
+static uint qedf_fallback_vlan = QEDF_FALLBACK_VLAN;
+module_param_named(fallback_vlan, qedf_fallback_vlan, int, S_IRUGO);
+MODULE_PARM_DESC(fallback_vlan, " VLAN ID to try if fip vlan request fails "
+ "(default 1002).");
+
+static uint qedf_default_prio = QEDF_DEFAULT_PRIO;
+module_param_named(default_prio, qedf_default_prio, int, S_IRUGO);
+MODULE_PARM_DESC(default_prio, " Default 802.1q priority for FIP and FCoE"
+ " traffic (default 3).");
+
+uint qedf_dump_frames;
+module_param_named(dump_frames, qedf_dump_frames, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(dump_frames, " Print the skb data of FIP and FCoE frames "
+ "(default off)");
+
+static uint qedf_queue_depth;
+module_param_named(queue_depth, qedf_queue_depth, int, S_IRUGO);
+MODULE_PARM_DESC(queue_depth, " Sets the queue depth for all LUNs discovered "
+ "by the qedf driver. Default is 0 (use OS default).");
+
+uint qedf_io_tracing;
+module_param_named(io_tracing, qedf_io_tracing, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(io_tracing, " Enable logging of SCSI requests/completions "
+ "into trace buffer. (default off).");
+
+static uint qedf_max_lun = MAX_FIBRE_LUNS;
+module_param_named(max_lun, qedf_max_lun, int, S_IRUGO);
+MODULE_PARM_DESC(max_lun, " Sets the maximum luns per target that the driver "
+ "supports. (default 0xffffffff)");
+
+uint qedf_link_down_tmo;
+module_param_named(link_down_tmo, qedf_link_down_tmo, int, S_IRUGO);
+MODULE_PARM_DESC(link_down_tmo, " Delays informing the fcoe transport that the "
+ "link is down by N seconds.");
+
+bool qedf_retry_delay;
+module_param_named(retry_delay, qedf_retry_delay, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(retry_delay, " Enable/disable handling of FCP_RSP IU retry "
+ "delay handling (default off).");
+
+static uint qedf_dp_module;
+module_param_named(dp_module, qedf_dp_module, uint, S_IRUGO);
+MODULE_PARM_DESC(dp_module, " bit flags control for verbose printk passed "
+ "qed module during probe.");
+
+static uint qedf_dp_level;
+module_param_named(dp_level, qedf_dp_level, uint, S_IRUGO);
+MODULE_PARM_DESC(dp_level, " printk verbosity control passed to qed module "
+ "during probe (0-3: 0 more verbose).");
+
+struct workqueue_struct *qedf_io_wq;
+
+static struct fcoe_percpu_s qedf_global;
+static DEFINE_SPINLOCK(qedf_global_lock);
+
+static struct kmem_cache *qedf_io_work_cache;
+
+void qedf_set_vlan_id(struct qedf_ctx *qedf, int vlan_id)
+{
+ qedf->vlan_id = vlan_id;
+ qedf->vlan_id |= qedf_default_prio << VLAN_PRIO_SHIFT;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Setting vlan_id=%04x "
+ "prio=%d.\n", vlan_id, qedf_default_prio);
+}
+
+/* Returns true if we have a valid vlan, false otherwise */
+static bool qedf_initiate_fipvlan_req(struct qedf_ctx *qedf)
+{
+ int rc;
+
+ if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Link not up.\n");
+ return false;
+ }
+
+ while (qedf->fipvlan_retries--) {
+ if (qedf->vlan_id > 0)
+ return true;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Retry %d.\n", qedf->fipvlan_retries);
+ init_completion(&qedf->fipvlan_compl);
+ qedf_fcoe_send_vlan_req(qedf);
+ rc = wait_for_completion_timeout(&qedf->fipvlan_compl,
+ 1 * HZ);
+ if (rc > 0) {
+ fcoe_ctlr_link_up(&qedf->ctlr);
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static void qedf_handle_link_update(struct work_struct *work)
+{
+ struct qedf_ctx *qedf =
+ container_of(work, struct qedf_ctx, link_update.work);
+ int rc;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Entered.\n");
+
+ if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
+ rc = qedf_initiate_fipvlan_req(qedf);
+ if (rc)
+ return;
+ /*
+ * If we get here then we never received a repsonse to our
+ * fip vlan request so set the vlan_id to the default and
+ * tell FCoE that the link is up
+ */
+ QEDF_WARN(&(qedf->dbg_ctx), "Did not receive FIP VLAN "
+ "response, falling back to default VLAN %d.\n",
+ qedf_fallback_vlan);
+ qedf_set_vlan_id(qedf, QEDF_FALLBACK_VLAN);
+
+ /*
+ * Zero out data_src_addr so we'll update it with the new
+ * lport port_id
+ */
+ eth_zero_addr(qedf->data_src_addr);
+ fcoe_ctlr_link_up(&qedf->ctlr);
+ } else if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN) {
+ /*
+ * If we hit here and link_down_tmo_valid is still 1 it means
+ * that link_down_tmo timed out so set it to 0 to make sure any
+ * other readers have accurate state.
+ */
+ atomic_set(&qedf->link_down_tmo_valid, 0);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Calling fcoe_ctlr_link_down().\n");
+ fcoe_ctlr_link_down(&qedf->ctlr);
+ qedf_wait_for_upload(qedf);
+ /* Reset the number of FIP VLAN retries */
+ qedf->fipvlan_retries = qedf_fipvlan_retries;
+ }
+}
+
+static void qedf_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
+ void *arg)
+{
+ struct fc_exch *exch = fc_seq_exch(seq);
+ struct fc_lport *lport = exch->lp;
+ struct qedf_ctx *qedf = lport_priv(lport);
+
+ if (!qedf) {
+ QEDF_ERR(NULL, "qedf is NULL.\n");
+ return;
+ }
+
+ /*
+ * If ERR_PTR is set then don't try to stat anything as it will cause
+ * a crash when we access fp.
+ */
+ if (IS_ERR(fp)) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "fp has IS_ERR() set.\n");
+ goto skip_stat;
+ }
+
+ /* Log stats for FLOGI reject */
+ if (fc_frame_payload_op(fp) == ELS_LS_RJT)
+ qedf->flogi_failed++;
+
+ /* Complete flogi_compl so we can proceed to sending ADISCs */
+ complete(&qedf->flogi_compl);
+
+skip_stat:
+ /* Report response to libfc */
+ fc_lport_flogi_resp(seq, fp, lport);
+}
+
+static struct fc_seq *qedf_elsct_send(struct fc_lport *lport, u32 did,
+ struct fc_frame *fp, unsigned int op,
+ void (*resp)(struct fc_seq *,
+ struct fc_frame *,
+ void *),
+ void *arg, u32 timeout)
+{
+ struct qedf_ctx *qedf = lport_priv(lport);
+
+ /*
+ * Intercept FLOGI for statistic purposes. Note we use the resp
+ * callback to tell if this is really a flogi.
+ */
+ if (resp == fc_lport_flogi_resp) {
+ qedf->flogi_cnt++;
+ return fc_elsct_send(lport, did, fp, op, qedf_flogi_resp,
+ arg, timeout);
+ }
+
+ return fc_elsct_send(lport, did, fp, op, resp, arg, timeout);
+}
+
+int qedf_send_flogi(struct qedf_ctx *qedf)
+{
+ struct fc_lport *lport;
+ struct fc_frame *fp;
+
+ lport = qedf->lport;
+
+ if (!lport->tt.elsct_send)
+ return -EINVAL;
+
+ fp = fc_frame_alloc(lport, sizeof(struct fc_els_flogi));
+ if (!fp) {
+ QEDF_ERR(&(qedf->dbg_ctx), "fc_frame_alloc failed.\n");
+ return -ENOMEM;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Sending FLOGI to reestablish session with switch.\n");
+ lport->tt.elsct_send(lport, FC_FID_FLOGI, fp,
+ ELS_FLOGI, qedf_flogi_resp, lport, lport->r_a_tov);
+
+ init_completion(&qedf->flogi_compl);
+
+ return 0;
+}
+
+struct qedf_tmp_rdata_item {
+ struct fc_rport_priv *rdata;
+ struct list_head list;
+};
+
+/*
+ * This function is called if link_down_tmo is in use. If we get a link up and
+ * link_down_tmo has not expired then use just FLOGI/ADISC to recover our
+ * sessions with targets. Otherwise, just call fcoe_ctlr_link_up().
+ */
+static void qedf_link_recovery(struct work_struct *work)
+{
+ struct qedf_ctx *qedf =
+ container_of(work, struct qedf_ctx, link_recovery.work);
+ struct qedf_rport *fcport;
+ struct fc_rport_priv *rdata;
+ struct qedf_tmp_rdata_item *rdata_item, *tmp_rdata_item;
+ bool rc;
+ int retries = 30;
+ int rval, i;
+ struct list_head rdata_login_list;
+
+ INIT_LIST_HEAD(&rdata_login_list);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Link down tmo did not expire.\n");
+
+ /*
+ * Essentially reset the fcoe_ctlr here without affecting the state
+ * of the libfc structs.
+ */
+ qedf->ctlr.state = FIP_ST_LINK_WAIT;
+ fcoe_ctlr_link_down(&qedf->ctlr);
+
+ /*
+ * Bring the link up before we send the fipvlan request so libfcoe
+ * can select a new fcf in parallel
+ */
+ fcoe_ctlr_link_up(&qedf->ctlr);
+
+ /* Since the link when down and up to verify which vlan we're on */
+ qedf->fipvlan_retries = qedf_fipvlan_retries;
+ rc = qedf_initiate_fipvlan_req(qedf);
+ if (!rc)
+ return;
+
+ /*
+ * We need to wait for an FCF to be selected due to the
+ * fcoe_ctlr_link_up other the FLOGI will be rejected.
+ */
+ while (retries > 0) {
+ if (qedf->ctlr.sel_fcf) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "FCF reselected, proceeding with FLOGI.\n");
+ break;
+ }
+ msleep(500);
+ retries--;
+ }
+
+ if (retries < 1) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Exhausted retries waiting for "
+ "FCF selection.\n");
+ return;
+ }
+
+ rval = qedf_send_flogi(qedf);
+ if (rval)
+ return;
+
+ /* Wait for FLOGI completion before proceeding with sending ADISCs */
+ i = wait_for_completion_timeout(&qedf->flogi_compl,
+ qedf->lport->r_a_tov);
+ if (i == 0) {
+ QEDF_ERR(&(qedf->dbg_ctx), "FLOGI timed out.\n");
+ return;
+ }
+
+ /*
+ * Call lport->tt.rport_login which will cause libfc to send an
+ * ADISC since the rport is in state ready.
+ */
+ rcu_read_lock();
+ list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
+ rdata = fcport->rdata;
+ if (rdata == NULL)
+ continue;
+ rdata_item = kzalloc(sizeof(struct qedf_tmp_rdata_item),
+ GFP_ATOMIC);
+ if (!rdata_item)
+ continue;
+ if (kref_get_unless_zero(&rdata->kref)) {
+ rdata_item->rdata = rdata;
+ list_add(&rdata_item->list, &rdata_login_list);
+ } else
+ kfree(rdata_item);
+ }
+ rcu_read_unlock();
+ /*
+ * Do the fc_rport_login outside of the rcu lock so we don't take a
+ * mutex in an atomic context.
+ */
+ list_for_each_entry_safe(rdata_item, tmp_rdata_item, &rdata_login_list,
+ list) {
+ list_del(&rdata_item->list);
+ fc_rport_login(rdata_item->rdata);
+ kref_put(&rdata->kref, fc_rport_destroy);
+ kfree(rdata_item);
+ }
+}
+
+static void qedf_update_link_speed(struct qedf_ctx *qedf,
+ struct qed_link_output *link)
+{
+ struct fc_lport *lport = qedf->lport;
+
+ lport->link_speed = FC_PORTSPEED_UNKNOWN;
+ lport->link_supported_speeds = FC_PORTSPEED_UNKNOWN;
+
+ /* Set fc_host link speed */
+ switch (link->speed) {
+ case 10000:
+ lport->link_speed = FC_PORTSPEED_10GBIT;
+ break;
+ case 25000:
+ lport->link_speed = FC_PORTSPEED_25GBIT;
+ break;
+ case 40000:
+ lport->link_speed = FC_PORTSPEED_40GBIT;
+ break;
+ case 50000:
+ lport->link_speed = FC_PORTSPEED_50GBIT;
+ break;
+ case 100000:
+ lport->link_speed = FC_PORTSPEED_100GBIT;
+ break;
+ default:
+ lport->link_speed = FC_PORTSPEED_UNKNOWN;
+ break;
+ }
+
+ /*
+ * Set supported link speed by querying the supported
+ * capabilities of the link.
+ */
+ if (link->supported_caps & SUPPORTED_10000baseKR_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
+ if (link->supported_caps & SUPPORTED_25000baseKR_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_25GBIT;
+ if (link->supported_caps & SUPPORTED_40000baseLR4_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_40GBIT;
+ if (link->supported_caps & SUPPORTED_50000baseKR2_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_50GBIT;
+ if (link->supported_caps & SUPPORTED_100000baseKR4_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_100GBIT;
+ fc_host_supported_speeds(lport->host) = lport->link_supported_speeds;
+}
+
+static void qedf_link_update(void *dev, struct qed_link_output *link)
+{
+ struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
+
+ if (link->link_up) {
+ QEDF_ERR(&(qedf->dbg_ctx), "LINK UP (%d GB/s).\n",
+ link->speed / 1000);
+
+ /* Cancel any pending link down work */
+ cancel_delayed_work(&qedf->link_update);
+
+ atomic_set(&qedf->link_state, QEDF_LINK_UP);
+ qedf_update_link_speed(qedf, link);
+
+ if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE) {
+ QEDF_ERR(&(qedf->dbg_ctx), "DCBx done.\n");
+ if (atomic_read(&qedf->link_down_tmo_valid) > 0)
+ queue_delayed_work(qedf->link_update_wq,
+ &qedf->link_recovery, 0);
+ else
+ queue_delayed_work(qedf->link_update_wq,
+ &qedf->link_update, 0);
+ atomic_set(&qedf->link_down_tmo_valid, 0);
+ }
+
+ } else {
+ QEDF_ERR(&(qedf->dbg_ctx), "LINK DOWN.\n");
+
+ atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
+ atomic_set(&qedf->dcbx, QEDF_DCBX_PENDING);
+ /*
+ * Flag that we're waiting for the link to come back up before
+ * informing the fcoe layer of the event.
+ */
+ if (qedf_link_down_tmo > 0) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Starting link down tmo.\n");
+ atomic_set(&qedf->link_down_tmo_valid, 1);
+ }
+ qedf->vlan_id = 0;
+ qedf_update_link_speed(qedf, link);
+ queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
+ qedf_link_down_tmo * HZ);
+ }
+}
+
+
+static void qedf_dcbx_handler(void *dev, struct qed_dcbx_get *get, u32 mib_type)
+{
+ struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
+
+ QEDF_ERR(&(qedf->dbg_ctx), "DCBx event valid=%d enabled=%d fcoe "
+ "prio=%d.\n", get->operational.valid, get->operational.enabled,
+ get->operational.app_prio.fcoe);
+
+ if (get->operational.enabled && get->operational.valid) {
+ /* If DCBX was already negotiated on link up then just exit */
+ if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "DCBX already set on link up.\n");
+ return;
+ }
+
+ atomic_set(&qedf->dcbx, QEDF_DCBX_DONE);
+
+ if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
+ if (atomic_read(&qedf->link_down_tmo_valid) > 0)
+ queue_delayed_work(qedf->link_update_wq,
+ &qedf->link_recovery, 0);
+ else
+ queue_delayed_work(qedf->link_update_wq,
+ &qedf->link_update, 0);
+ atomic_set(&qedf->link_down_tmo_valid, 0);
+ }
+ }
+
+}
+
+static u32 qedf_get_login_failures(void *cookie)
+{
+ struct qedf_ctx *qedf;
+
+ qedf = (struct qedf_ctx *)cookie;
+ return qedf->flogi_failed;
+}
+
+static struct qed_fcoe_cb_ops qedf_cb_ops = {
+ {
+ .link_update = qedf_link_update,
+ .dcbx_aen = qedf_dcbx_handler,
+ }
+};
+
+/*
+ * Various transport templates.
+ */
+
+static struct scsi_transport_template *qedf_fc_transport_template;
+static struct scsi_transport_template *qedf_fc_vport_transport_template;
+
+/*
+ * SCSI EH handlers
+ */
+static int qedf_eh_abort(struct scsi_cmnd *sc_cmd)
+{
+ struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+ struct fc_rport_libfc_priv *rp = rport->dd_data;
+ struct qedf_rport *fcport;
+ struct fc_lport *lport;
+ struct qedf_ctx *qedf;
+ struct qedf_ioreq *io_req;
+ int rc = FAILED;
+ int rval;
+
+ if (fc_remote_port_chkready(rport)) {
+ QEDF_ERR(NULL, "rport not ready\n");
+ goto out;
+ }
+
+ lport = shost_priv(sc_cmd->device->host);
+ qedf = (struct qedf_ctx *)lport_priv(lport);
+
+ if ((lport->state != LPORT_ST_READY) || !(lport->link_up)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "link not ready.\n");
+ goto out;
+ }
+
+ fcport = (struct qedf_rport *)&rp[1];
+
+ io_req = (struct qedf_ioreq *)sc_cmd->SCp.ptr;
+ if (!io_req) {
+ QEDF_ERR(&(qedf->dbg_ctx), "io_req is NULL.\n");
+ rc = SUCCESS;
+ goto out;
+ }
+
+ if (!test_bit(QEDF_CMD_OUTSTANDING, &io_req->flags) ||
+ test_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags) ||
+ test_bit(QEDF_CMD_IN_ABORT, &io_req->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "io_req xid=0x%x already in "
+ "cleanup or abort processing or already "
+ "completed.\n", io_req->xid);
+ rc = SUCCESS;
+ goto out;
+ }
+
+ QEDF_ERR(&(qedf->dbg_ctx), "Aborting io_req sc_cmd=%p xid=0x%x "
+ "fp_idx=%d.\n", sc_cmd, io_req->xid, io_req->fp_idx);
+
+ if (qedf->stop_io_on_error) {
+ qedf_stop_all_io(qedf);
+ rc = SUCCESS;
+ goto out;
+ }
+
+ init_completion(&io_req->abts_done);
+ rval = qedf_initiate_abts(io_req, true);
+ if (rval) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
+ goto out;
+ }
+
+ wait_for_completion(&io_req->abts_done);
+
+ if (io_req->event == QEDF_IOREQ_EV_ABORT_SUCCESS ||
+ io_req->event == QEDF_IOREQ_EV_ABORT_FAILED ||
+ io_req->event == QEDF_IOREQ_EV_CLEANUP_SUCCESS) {
+ /*
+ * If we get a reponse to the abort this is success from
+ * the perspective that all references to the command have
+ * been removed from the driver and firmware
+ */
+ rc = SUCCESS;
+ } else {
+ /* If the abort and cleanup failed then return a failure */
+ rc = FAILED;
+ }
+
+ if (rc == SUCCESS)
+ QEDF_ERR(&(qedf->dbg_ctx), "ABTS succeeded, xid=0x%x.\n",
+ io_req->xid);
+ else
+ QEDF_ERR(&(qedf->dbg_ctx), "ABTS failed, xid=0x%x.\n",
+ io_req->xid);
+
+out:
+ return rc;
+}
+
+static int qedf_eh_target_reset(struct scsi_cmnd *sc_cmd)
+{
+ QEDF_ERR(NULL, "TARGET RESET Issued...");
+ return qedf_initiate_tmf(sc_cmd, FCP_TMF_TGT_RESET);
+}
+
+static int qedf_eh_device_reset(struct scsi_cmnd *sc_cmd)
+{
+ QEDF_ERR(NULL, "LUN RESET Issued...\n");
+ return qedf_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET);
+}
+
+void qedf_wait_for_upload(struct qedf_ctx *qedf)
+{
+ while (1) {
+ if (atomic_read(&qedf->num_offloads))
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Waiting for all uploads to complete.\n");
+ else
+ break;
+ msleep(500);
+ }
+}
+
+/* Reset the host by gracefully logging out and then logging back in */
+static int qedf_eh_host_reset(struct scsi_cmnd *sc_cmd)
+{
+ struct fc_lport *lport;
+ struct qedf_ctx *qedf;
+
+ lport = shost_priv(sc_cmd->device->host);
+
+ if (lport->vport) {
+ QEDF_ERR(NULL, "Cannot issue host reset on NPIV port.\n");
+ return SUCCESS;
+ }
+
+ qedf = (struct qedf_ctx *)lport_priv(lport);
+
+ if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN ||
+ test_bit(QEDF_UNLOADING, &qedf->flags))
+ return FAILED;
+
+ QEDF_ERR(&(qedf->dbg_ctx), "HOST RESET Issued...");
+
+ /* For host reset, essentially do a soft link up/down */
+ atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
+ atomic_set(&qedf->dcbx, QEDF_DCBX_PENDING);
+ queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
+ 0);
+ qedf_wait_for_upload(qedf);
+ atomic_set(&qedf->link_state, QEDF_LINK_UP);
+ qedf->vlan_id = 0;
+ queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
+ 0);
+
+ return SUCCESS;
+}
+
+static int qedf_slave_configure(struct scsi_device *sdev)
+{
+ if (qedf_queue_depth) {
+ scsi_change_queue_depth(sdev, qedf_queue_depth);
+ }
+
+ return 0;
+}
+
+static struct scsi_host_template qedf_host_template = {
+ .module = THIS_MODULE,
+ .name = QEDF_MODULE_NAME,
+ .this_id = -1,
+ .cmd_per_lun = 3,
+ .use_clustering = ENABLE_CLUSTERING,
+ .max_sectors = 0xffff,
+ .queuecommand = qedf_queuecommand,
+ .shost_attrs = qedf_host_attrs,
+ .eh_abort_handler = qedf_eh_abort,
+ .eh_device_reset_handler = qedf_eh_device_reset, /* lun reset */
+ .eh_target_reset_handler = qedf_eh_target_reset, /* target reset */
+ .eh_host_reset_handler = qedf_eh_host_reset,
+ .slave_configure = qedf_slave_configure,
+ .dma_boundary = QED_HW_DMA_BOUNDARY,
+ .sg_tablesize = QEDF_MAX_BDS_PER_CMD,
+ .can_queue = FCOE_PARAMS_NUM_TASKS,
+};
+
+static int qedf_get_paged_crc_eof(struct sk_buff *skb, int tlen)
+{
+ int rc;
+
+ spin_lock(&qedf_global_lock);
+ rc = fcoe_get_paged_crc_eof(skb, tlen, &qedf_global);
+ spin_unlock(&qedf_global_lock);
+
+ return rc;
+}
+
+static struct qedf_rport *qedf_fcport_lookup(struct qedf_ctx *qedf, u32 port_id)
+{
+ struct qedf_rport *fcport;
+ struct fc_rport_priv *rdata;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
+ rdata = fcport->rdata;
+ if (rdata == NULL)
+ continue;
+ if (rdata->ids.port_id == port_id) {
+ rcu_read_unlock();
+ return fcport;
+ }
+ }
+ rcu_read_unlock();
+
+ /* Return NULL to caller to let them know fcport was not found */
+ return NULL;
+}
+
+/* Transmits an ELS frame over an offloaded session */
+static int qedf_xmit_l2_frame(struct qedf_rport *fcport, struct fc_frame *fp)
+{
+ struct fc_frame_header *fh;
+ int rc = 0;
+
+ fh = fc_frame_header_get(fp);
+ if ((fh->fh_type == FC_TYPE_ELS) &&
+ (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
+ switch (fc_frame_payload_op(fp)) {
+ case ELS_ADISC:
+ qedf_send_adisc(fcport, fp);
+ rc = 1;
+ break;
+ }
+ }
+
+ return rc;
+}
+
+/**
+ * qedf_xmit - qedf FCoE frame transmit function
+ *
+ */
+static int qedf_xmit(struct fc_lport *lport, struct fc_frame *fp)
+{
+ struct fc_lport *base_lport;
+ struct qedf_ctx *qedf;
+ struct ethhdr *eh;
+ struct fcoe_crc_eof *cp;
+ struct sk_buff *skb;
+ struct fc_frame_header *fh;
+ struct fcoe_hdr *hp;
+ u8 sof, eof;
+ u32 crc;
+ unsigned int hlen, tlen, elen;
+ int wlen;
+ struct fc_stats *stats;
+ struct fc_lport *tmp_lport;
+ struct fc_lport *vn_port = NULL;
+ struct qedf_rport *fcport;
+ int rc;
+ u16 vlan_tci = 0;
+
+ qedf = (struct qedf_ctx *)lport_priv(lport);
+
+ fh = fc_frame_header_get(fp);
+ skb = fp_skb(fp);
+
+ /* Filter out traffic to other NPIV ports on the same host */
+ if (lport->vport)
+ base_lport = shost_priv(vport_to_shost(lport->vport));
+ else
+ base_lport = lport;
+
+ /* Flag if the destination is the base port */
+ if (base_lport->port_id == ntoh24(fh->fh_d_id)) {
+ vn_port = base_lport;
+ } else {
+ /* Got through the list of vports attached to the base_lport
+ * and see if we have a match with the destination address.
+ */
+ list_for_each_entry(tmp_lport, &base_lport->vports, list) {
+ if (tmp_lport->port_id == ntoh24(fh->fh_d_id)) {
+ vn_port = tmp_lport;
+ break;
+ }
+ }
+ }
+ if (vn_port && ntoh24(fh->fh_d_id) != FC_FID_FLOGI) {
+ struct fc_rport_priv *rdata = NULL;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "Dropping FCoE frame to %06x.\n", ntoh24(fh->fh_d_id));
+ kfree_skb(skb);
+ rdata = fc_rport_lookup(lport, ntoh24(fh->fh_d_id));
+ if (rdata)
+ rdata->retries = lport->max_rport_retry_count;
+ return -EINVAL;
+ }
+ /* End NPIV filtering */
+
+ if (!qedf->ctlr.sel_fcf) {
+ kfree_skb(skb);
+ return 0;
+ }
+
+ if (!test_bit(QEDF_LL2_STARTED, &qedf->flags)) {
+ QEDF_WARN(&(qedf->dbg_ctx), "LL2 not started\n");
+ kfree_skb(skb);
+ return 0;
+ }
+
+ if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
+ QEDF_WARN(&(qedf->dbg_ctx), "qedf link down\n");
+ kfree_skb(skb);
+ return 0;
+ }
+
+ if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
+ if (fcoe_ctlr_els_send(&qedf->ctlr, lport, skb))
+ return 0;
+ }
+
+ /* Check to see if this needs to be sent on an offloaded session */
+ fcport = qedf_fcport_lookup(qedf, ntoh24(fh->fh_d_id));
+
+ if (fcport && test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ rc = qedf_xmit_l2_frame(fcport, fp);
+ /*
+ * If the frame was successfully sent over the middle path
+ * then do not try to also send it over the LL2 path
+ */
+ if (rc)
+ return 0;
+ }
+
+ sof = fr_sof(fp);
+ eof = fr_eof(fp);
+
+ elen = sizeof(struct ethhdr);
+ hlen = sizeof(struct fcoe_hdr);
+ tlen = sizeof(struct fcoe_crc_eof);
+ wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
+
+ skb->ip_summed = CHECKSUM_NONE;
+ crc = fcoe_fc_crc(fp);
+
+ /* copy port crc and eof to the skb buff */
+ if (skb_is_nonlinear(skb)) {
+ skb_frag_t *frag;
+
+ if (qedf_get_paged_crc_eof(skb, tlen)) {
+ kfree_skb(skb);
+ return -ENOMEM;
+ }
+ frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
+ cp = kmap_atomic(skb_frag_page(frag)) + frag->page_offset;
+ } else {
+ cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
+ }
+
+ memset(cp, 0, sizeof(*cp));
+ cp->fcoe_eof = eof;
+ cp->fcoe_crc32 = cpu_to_le32(~crc);
+ if (skb_is_nonlinear(skb)) {
+ kunmap_atomic(cp);
+ cp = NULL;
+ }
+
+
+ /* adjust skb network/transport offsets to match mac/fcoe/port */
+ skb_push(skb, elen + hlen);
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+ skb->mac_len = elen;
+ skb->protocol = htons(ETH_P_FCOE);
+
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), qedf->vlan_id);
+
+ /* fill up mac and fcoe headers */
+ eh = eth_hdr(skb);
+ eh->h_proto = htons(ETH_P_FCOE);
+ if (qedf->ctlr.map_dest)
+ fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
+ else
+ /* insert GW address */
+ ether_addr_copy(eh->h_dest, qedf->ctlr.dest_addr);
+
+ /* Set the source MAC address */
+ fc_fcoe_set_mac(eh->h_source, fh->fh_s_id);
+
+ hp = (struct fcoe_hdr *)(eh + 1);
+ memset(hp, 0, sizeof(*hp));
+ if (FC_FCOE_VER)
+ FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
+ hp->fcoe_sof = sof;
+
+ /*update tx stats */
+ stats = per_cpu_ptr(lport->stats, get_cpu());
+ stats->TxFrames++;
+ stats->TxWords += wlen;
+ put_cpu();
+
+ /* Get VLAN ID from skb for printing purposes */
+ __vlan_hwaccel_get_tag(skb, &vlan_tci);
+
+ /* send down to lld */
+ fr_dev(fp) = lport;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FCoE frame send: "
+ "src=%06x dest=%06x r_ctl=%x type=%x vlan=%04x.\n",
+ ntoh24(fh->fh_s_id), ntoh24(fh->fh_d_id), fh->fh_r_ctl, fh->fh_type,
+ vlan_tci);
+ if (qedf_dump_frames)
+ print_hex_dump(KERN_WARNING, "fcoe: ", DUMP_PREFIX_OFFSET, 16,
+ 1, skb->data, skb->len, false);
+ qed_ops->ll2->start_xmit(qedf->cdev, skb);
+
+ return 0;
+}
+
+static int qedf_alloc_sq(struct qedf_ctx *qedf, struct qedf_rport *fcport)
+{
+ int rval = 0;
+ u32 *pbl;
+ dma_addr_t page;
+ int num_pages;
+
+ /* Calculate appropriate queue and PBL sizes */
+ fcport->sq_mem_size = SQ_NUM_ENTRIES * sizeof(struct fcoe_wqe);
+ fcport->sq_mem_size = ALIGN(fcport->sq_mem_size, QEDF_PAGE_SIZE);
+ fcport->sq_pbl_size = (fcport->sq_mem_size / QEDF_PAGE_SIZE) *
+ sizeof(void *);
+ fcport->sq_pbl_size = fcport->sq_pbl_size + QEDF_PAGE_SIZE;
+
+ fcport->sq = dma_alloc_coherent(&qedf->pdev->dev, fcport->sq_mem_size,
+ &fcport->sq_dma, GFP_KERNEL);
+ if (!fcport->sq) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send "
+ "queue.\n");
+ rval = 1;
+ goto out;
+ }
+ memset(fcport->sq, 0, fcport->sq_mem_size);
+
+ fcport->sq_pbl = dma_alloc_coherent(&qedf->pdev->dev,
+ fcport->sq_pbl_size, &fcport->sq_pbl_dma, GFP_KERNEL);
+ if (!fcport->sq_pbl) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send "
+ "queue PBL.\n");
+ rval = 1;
+ goto out_free_sq;
+ }
+ memset(fcport->sq_pbl, 0, fcport->sq_pbl_size);
+
+ /* Create PBL */
+ num_pages = fcport->sq_mem_size / QEDF_PAGE_SIZE;
+ page = fcport->sq_dma;
+ pbl = (u32 *)fcport->sq_pbl;
+
+ while (num_pages--) {
+ *pbl = U64_LO(page);
+ pbl++;
+ *pbl = U64_HI(page);
+ pbl++;
+ page += QEDF_PAGE_SIZE;
+ }
+
+ return rval;
+
+out_free_sq:
+ dma_free_coherent(&qedf->pdev->dev, fcport->sq_mem_size, fcport->sq,
+ fcport->sq_dma);
+out:
+ return rval;
+}
+
+static void qedf_free_sq(struct qedf_ctx *qedf, struct qedf_rport *fcport)
+{
+ if (fcport->sq_pbl)
+ dma_free_coherent(&qedf->pdev->dev, fcport->sq_pbl_size,
+ fcport->sq_pbl, fcport->sq_pbl_dma);
+ if (fcport->sq)
+ dma_free_coherent(&qedf->pdev->dev, fcport->sq_mem_size,
+ fcport->sq, fcport->sq_dma);
+}
+
+static int qedf_offload_connection(struct qedf_ctx *qedf,
+ struct qedf_rport *fcport)
+{
+ struct qed_fcoe_params_offload conn_info;
+ u32 port_id;
+ u8 lport_src_id[3];
+ int rval;
+ uint16_t total_sqe = (fcport->sq_mem_size / sizeof(struct fcoe_wqe));
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Offloading connection "
+ "portid=%06x.\n", fcport->rdata->ids.port_id);
+ rval = qed_ops->acquire_conn(qedf->cdev, &fcport->handle,
+ &fcport->fw_cid, &fcport->p_doorbell);
+ if (rval) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not acquire connection "
+ "for portid=%06x.\n", fcport->rdata->ids.port_id);
+ rval = 1; /* For some reason qed returns 0 on failure here */
+ goto out;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "portid=%06x "
+ "fw_cid=%08x handle=%d.\n", fcport->rdata->ids.port_id,
+ fcport->fw_cid, fcport->handle);
+
+ memset(&conn_info, 0, sizeof(struct qed_fcoe_params_offload));
+
+ /* Fill in the offload connection info */
+ conn_info.sq_pbl_addr = fcport->sq_pbl_dma;
+
+ conn_info.sq_curr_page_addr = (dma_addr_t)(*(u64 *)fcport->sq_pbl);
+ conn_info.sq_next_page_addr =
+ (dma_addr_t)(*(u64 *)(fcport->sq_pbl + 8));
+
+ /* Need to use our FCoE MAC for the offload session */
+ port_id = fc_host_port_id(qedf->lport->host);
+ lport_src_id[2] = (port_id & 0x000000FF);
+ lport_src_id[1] = (port_id & 0x0000FF00) >> 8;
+ lport_src_id[0] = (port_id & 0x00FF0000) >> 16;
+ fc_fcoe_set_mac(conn_info.src_mac, lport_src_id);
+
+ ether_addr_copy(conn_info.dst_mac, qedf->ctlr.dest_addr);
+
+ conn_info.tx_max_fc_pay_len = fcport->rdata->maxframe_size;
+ conn_info.e_d_tov_timer_val = qedf->lport->e_d_tov / 20;
+ conn_info.rec_tov_timer_val = 3; /* I think this is what E3 was */
+ conn_info.rx_max_fc_pay_len = fcport->rdata->maxframe_size;
+
+ /* Set VLAN data */
+ conn_info.vlan_tag = qedf->vlan_id <<
+ FCOE_CONN_OFFLOAD_RAMROD_DATA_VLAN_ID_SHIFT;
+ conn_info.vlan_tag |=
+ qedf_default_prio << FCOE_CONN_OFFLOAD_RAMROD_DATA_PRIORITY_SHIFT;
+ conn_info.flags |= (FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_MASK <<
+ FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_SHIFT);
+
+ /* Set host port source id */
+ port_id = fc_host_port_id(qedf->lport->host);
+ fcport->sid = port_id;
+ conn_info.s_id.addr_hi = (port_id & 0x000000FF);
+ conn_info.s_id.addr_mid = (port_id & 0x0000FF00) >> 8;
+ conn_info.s_id.addr_lo = (port_id & 0x00FF0000) >> 16;
+
+ conn_info.max_conc_seqs_c3 = fcport->rdata->max_seq;
+
+ /* Set remote port destination id */
+ port_id = fcport->rdata->rport->port_id;
+ conn_info.d_id.addr_hi = (port_id & 0x000000FF);
+ conn_info.d_id.addr_mid = (port_id & 0x0000FF00) >> 8;
+ conn_info.d_id.addr_lo = (port_id & 0x00FF0000) >> 16;
+
+ conn_info.def_q_idx = 0; /* Default index for send queue? */
+
+ /* Set FC-TAPE specific flags if needed */
+ if (fcport->dev_type == QEDF_RPORT_TYPE_TAPE) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN,
+ "Enable CONF, REC for portid=%06x.\n",
+ fcport->rdata->ids.port_id);
+ conn_info.flags |= 1 <<
+ FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONF_REQ_SHIFT;
+ conn_info.flags |=
+ ((fcport->rdata->sp_features & FC_SP_FT_SEQC) ? 1 : 0) <<
+ FCOE_CONN_OFFLOAD_RAMROD_DATA_B_REC_VALID_SHIFT;
+ }
+
+ rval = qed_ops->offload_conn(qedf->cdev, fcport->handle, &conn_info);
+ if (rval) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not offload connection "
+ "for portid=%06x.\n", fcport->rdata->ids.port_id);
+ goto out_free_conn;
+ } else
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Offload "
+ "succeeded portid=%06x total_sqe=%d.\n",
+ fcport->rdata->ids.port_id, total_sqe);
+
+ spin_lock_init(&fcport->rport_lock);
+ atomic_set(&fcport->free_sqes, total_sqe);
+ return 0;
+out_free_conn:
+ qed_ops->release_conn(qedf->cdev, fcport->handle);
+out:
+ return rval;
+}
+
+#define QEDF_TERM_BUFF_SIZE 10
+static void qedf_upload_connection(struct qedf_ctx *qedf,
+ struct qedf_rport *fcport)
+{
+ void *term_params;
+ dma_addr_t term_params_dma;
+
+ /* Term params needs to be a DMA coherent buffer as qed shared the
+ * physical DMA address with the firmware. The buffer may be used in
+ * the receive path so we may eventually have to move this.
+ */
+ term_params = dma_alloc_coherent(&qedf->pdev->dev, QEDF_TERM_BUFF_SIZE,
+ &term_params_dma, GFP_KERNEL);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Uploading connection "
+ "port_id=%06x.\n", fcport->rdata->ids.port_id);
+
+ qed_ops->destroy_conn(qedf->cdev, fcport->handle, term_params_dma);
+ qed_ops->release_conn(qedf->cdev, fcport->handle);
+
+ dma_free_coherent(&qedf->pdev->dev, QEDF_TERM_BUFF_SIZE, term_params,
+ term_params_dma);
+}
+
+static void qedf_cleanup_fcport(struct qedf_ctx *qedf,
+ struct qedf_rport *fcport)
+{
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Cleaning up portid=%06x.\n",
+ fcport->rdata->ids.port_id);
+
+ /* Flush any remaining i/o's before we upload the connection */
+ qedf_flush_active_ios(fcport, -1);
+
+ if (test_and_clear_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))
+ qedf_upload_connection(qedf, fcport);
+ qedf_free_sq(qedf, fcport);
+ fcport->rdata = NULL;
+ fcport->qedf = NULL;
+}
+
+/**
+ * This event_callback is called after successful completion of libfc
+ * initiated target login. qedf can proceed with initiating the session
+ * establishment.
+ */
+static void qedf_rport_event_handler(struct fc_lport *lport,
+ struct fc_rport_priv *rdata,
+ enum fc_rport_event event)
+{
+ struct qedf_ctx *qedf = lport_priv(lport);
+ struct fc_rport *rport = rdata->rport;
+ struct fc_rport_libfc_priv *rp;
+ struct qedf_rport *fcport;
+ u32 port_id;
+ int rval;
+ unsigned long flags;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "event = %d, "
+ "port_id = 0x%x\n", event, rdata->ids.port_id);
+
+ switch (event) {
+ case RPORT_EV_READY:
+ if (!rport) {
+ QEDF_WARN(&(qedf->dbg_ctx), "rport is NULL.\n");
+ break;
+ }
+
+ rp = rport->dd_data;
+ fcport = (struct qedf_rport *)&rp[1];
+ fcport->qedf = qedf;
+
+ if (atomic_read(&qedf->num_offloads) >= QEDF_MAX_SESSIONS) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Not offloading "
+ "portid=0x%x as max number of offloaded sessions "
+ "reached.\n", rdata->ids.port_id);
+ return;
+ }
+
+ /*
+ * Don't try to offload the session again. Can happen when we
+ * get an ADISC
+ */
+ if (test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Session already "
+ "offloaded, portid=0x%x.\n",
+ rdata->ids.port_id);
+ return;
+ }
+
+ if (rport->port_id == FC_FID_DIR_SERV) {
+ /*
+ * qedf_rport structure doesn't exist for
+ * directory server.
+ * We should not come here, as lport will
+ * take care of fabric login
+ */
+ QEDF_WARN(&(qedf->dbg_ctx), "rport struct does not "
+ "exist for dir server port_id=%x\n",
+ rdata->ids.port_id);
+ break;
+ }
+
+ if (rdata->spp_type != FC_TYPE_FCP) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Not offlading since since spp type isn't FCP\n");
+ break;
+ }
+ if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Not FCP target so not offloading\n");
+ break;
+ }
+
+ fcport->rdata = rdata;
+ fcport->rport = rport;
+
+ rval = qedf_alloc_sq(qedf, fcport);
+ if (rval) {
+ qedf_cleanup_fcport(qedf, fcport);
+ break;
+ }
+
+ /* Set device type */
+ if (rdata->flags & FC_RP_FLAGS_RETRY &&
+ rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET &&
+ !(rdata->ids.roles & FC_RPORT_ROLE_FCP_INITIATOR)) {
+ fcport->dev_type = QEDF_RPORT_TYPE_TAPE;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "portid=%06x is a TAPE device.\n",
+ rdata->ids.port_id);
+ } else {
+ fcport->dev_type = QEDF_RPORT_TYPE_DISK;
+ }
+
+ rval = qedf_offload_connection(qedf, fcport);
+ if (rval) {
+ qedf_cleanup_fcport(qedf, fcport);
+ break;
+ }
+
+ /* Add fcport to list of qedf_ctx list of offloaded ports */
+ spin_lock_irqsave(&qedf->hba_lock, flags);
+ list_add_rcu(&fcport->peers, &qedf->fcports);
+ spin_unlock_irqrestore(&qedf->hba_lock, flags);
+
+ /*
+ * Set the session ready bit to let everyone know that this
+ * connection is ready for I/O
+ */
+ set_bit(QEDF_RPORT_SESSION_READY, &fcport->flags);
+ atomic_inc(&qedf->num_offloads);
+
+ break;
+ case RPORT_EV_LOGO:
+ case RPORT_EV_FAILED:
+ case RPORT_EV_STOP:
+ port_id = rdata->ids.port_id;
+ if (port_id == FC_FID_DIR_SERV)
+ break;
+
+ if (!rport) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "port_id=%x - rport notcreated Yet!!\n", port_id);
+ break;
+ }
+ rp = rport->dd_data;
+ /*
+ * Perform session upload. Note that rdata->peers is already
+ * removed from disc->rports list before we get this event.
+ */
+ fcport = (struct qedf_rport *)&rp[1];
+
+ /* Only free this fcport if it is offloaded already */
+ if (test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ set_bit(QEDF_RPORT_UPLOADING_CONNECTION, &fcport->flags);
+ qedf_cleanup_fcport(qedf, fcport);
+
+ /*
+ * Remove fcport to list of qedf_ctx list of offloaded
+ * ports
+ */
+ spin_lock_irqsave(&qedf->hba_lock, flags);
+ list_del_rcu(&fcport->peers);
+ spin_unlock_irqrestore(&qedf->hba_lock, flags);
+
+ clear_bit(QEDF_RPORT_UPLOADING_CONNECTION,
+ &fcport->flags);
+ atomic_dec(&qedf->num_offloads);
+ }
+
+ break;
+
+ case RPORT_EV_NONE:
+ break;
+ }
+}
+
+static void qedf_abort_io(struct fc_lport *lport)
+{
+ /* NO-OP but need to fill in the template */
+}
+
+static void qedf_fcp_cleanup(struct fc_lport *lport)
+{
+ /*
+ * NO-OP but need to fill in template to prevent a NULL
+ * function pointer dereference during link down. I/Os
+ * will be flushed when port is uploaded.
+ */
+}
+
+static struct libfc_function_template qedf_lport_template = {
+ .frame_send = qedf_xmit,
+ .fcp_abort_io = qedf_abort_io,
+ .fcp_cleanup = qedf_fcp_cleanup,
+ .rport_event_callback = qedf_rport_event_handler,
+ .elsct_send = qedf_elsct_send,
+};
+
+static void qedf_fcoe_ctlr_setup(struct qedf_ctx *qedf)
+{
+ fcoe_ctlr_init(&qedf->ctlr, FIP_ST_AUTO);
+
+ qedf->ctlr.send = qedf_fip_send;
+ qedf->ctlr.update_mac = qedf_update_src_mac;
+ qedf->ctlr.get_src_addr = qedf_get_src_mac;
+ ether_addr_copy(qedf->ctlr.ctl_src_addr, qedf->mac);
+}
+
+static int qedf_lport_setup(struct qedf_ctx *qedf)
+{
+ struct fc_lport *lport = qedf->lport;
+
+ lport->link_up = 0;
+ lport->max_retry_count = QEDF_FLOGI_RETRY_CNT;
+ lport->max_rport_retry_count = QEDF_RPORT_RETRY_CNT;
+ lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
+ FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
+ lport->boot_time = jiffies;
+ lport->e_d_tov = 2 * 1000;
+ lport->r_a_tov = 10 * 1000;
+
+ /* Set NPIV support */
+ lport->does_npiv = 1;
+ fc_host_max_npiv_vports(lport->host) = QEDF_MAX_NPIV;
+
+ fc_set_wwnn(lport, qedf->wwnn);
+ fc_set_wwpn(lport, qedf->wwpn);
+
+ fcoe_libfc_config(lport, &qedf->ctlr, &qedf_lport_template, 0);
+
+ /* Allocate the exchange manager */
+ fc_exch_mgr_alloc(lport, FC_CLASS_3, qedf->max_scsi_xid + 1,
+ qedf->max_els_xid, NULL);
+
+ if (fc_lport_init_stats(lport))
+ return -ENOMEM;
+
+ /* Finish lport config */
+ fc_lport_config(lport);
+
+ /* Set max frame size */
+ fc_set_mfs(lport, QEDF_MFS);
+ fc_host_maxframe_size(lport->host) = lport->mfs;
+
+ /* Set default dev_loss_tmo based on module parameter */
+ fc_host_dev_loss_tmo(lport->host) = qedf_dev_loss_tmo;
+
+ /* Set symbolic node name */
+ snprintf(fc_host_symbolic_name(lport->host), 256,
+ "QLogic %s v%s", QEDF_MODULE_NAME, QEDF_VERSION);
+
+ return 0;
+}
+
+/*
+ * NPIV functions
+ */
+
+static int qedf_vport_libfc_config(struct fc_vport *vport,
+ struct fc_lport *lport)
+{
+ lport->link_up = 0;
+ lport->qfull = 0;
+ lport->max_retry_count = QEDF_FLOGI_RETRY_CNT;
+ lport->max_rport_retry_count = QEDF_RPORT_RETRY_CNT;
+ lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
+ FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
+ lport->boot_time = jiffies;
+ lport->e_d_tov = 2 * 1000;
+ lport->r_a_tov = 10 * 1000;
+ lport->does_npiv = 1; /* Temporary until we add NPIV support */
+
+ /* Allocate stats for vport */
+ if (fc_lport_init_stats(lport))
+ return -ENOMEM;
+
+ /* Finish lport config */
+ fc_lport_config(lport);
+
+ /* offload related configuration */
+ lport->crc_offload = 0;
+ lport->seq_offload = 0;
+ lport->lro_enabled = 0;
+ lport->lro_xid = 0;
+ lport->lso_max = 0;
+
+ return 0;
+}
+
+static int qedf_vport_create(struct fc_vport *vport, bool disabled)
+{
+ struct Scsi_Host *shost = vport_to_shost(vport);
+ struct fc_lport *n_port = shost_priv(shost);
+ struct fc_lport *vn_port;
+ struct qedf_ctx *base_qedf = lport_priv(n_port);
+ struct qedf_ctx *vport_qedf;
+
+ char buf[32];
+ int rc = 0;
+
+ rc = fcoe_validate_vport_create(vport);
+ if (rc) {
+ fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
+ QEDF_WARN(&(base_qedf->dbg_ctx), "Failed to create vport, "
+ "WWPN (0x%s) already exists.\n", buf);
+ goto err1;
+ }
+
+ if (atomic_read(&base_qedf->link_state) != QEDF_LINK_UP) {
+ QEDF_WARN(&(base_qedf->dbg_ctx), "Cannot create vport "
+ "because link is not up.\n");
+ rc = -EIO;
+ goto err1;
+ }
+
+ vn_port = libfc_vport_create(vport, sizeof(struct qedf_ctx));
+ if (!vn_port) {
+ QEDF_WARN(&(base_qedf->dbg_ctx), "Could not create lport "
+ "for vport.\n");
+ rc = -ENOMEM;
+ goto err1;
+ }
+
+ fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
+ QEDF_ERR(&(base_qedf->dbg_ctx), "Creating NPIV port, WWPN=%s.\n",
+ buf);
+
+ /* Copy some fields from base_qedf */
+ vport_qedf = lport_priv(vn_port);
+ memcpy(vport_qedf, base_qedf, sizeof(struct qedf_ctx));
+
+ /* Set qedf data specific to this vport */
+ vport_qedf->lport = vn_port;
+ /* Use same hba_lock as base_qedf */
+ vport_qedf->hba_lock = base_qedf->hba_lock;
+ vport_qedf->pdev = base_qedf->pdev;
+ vport_qedf->cmd_mgr = base_qedf->cmd_mgr;
+ init_completion(&vport_qedf->flogi_compl);
+ INIT_LIST_HEAD(&vport_qedf->fcports);
+
+ rc = qedf_vport_libfc_config(vport, vn_port);
+ if (rc) {
+ QEDF_ERR(&(base_qedf->dbg_ctx), "Could not allocate memory "
+ "for lport stats.\n");
+ goto err2;
+ }
+
+ fc_set_wwnn(vn_port, vport->node_name);
+ fc_set_wwpn(vn_port, vport->port_name);
+ vport_qedf->wwnn = vn_port->wwnn;
+ vport_qedf->wwpn = vn_port->wwpn;
+
+ vn_port->host->transportt = qedf_fc_vport_transport_template;
+ vn_port->host->can_queue = QEDF_MAX_ELS_XID;
+ vn_port->host->max_lun = qedf_max_lun;
+ vn_port->host->sg_tablesize = QEDF_MAX_BDS_PER_CMD;
+ vn_port->host->max_cmd_len = QEDF_MAX_CDB_LEN;
+
+ rc = scsi_add_host(vn_port->host, &vport->dev);
+ if (rc) {
+ QEDF_WARN(&(base_qedf->dbg_ctx), "Error adding Scsi_Host.\n");
+ goto err2;
+ }
+
+ /* Set default dev_loss_tmo based on module parameter */
+ fc_host_dev_loss_tmo(vn_port->host) = qedf_dev_loss_tmo;
+
+ /* Init libfc stuffs */
+ memcpy(&vn_port->tt, &qedf_lport_template,
+ sizeof(qedf_lport_template));
+ fc_exch_init(vn_port);
+ fc_elsct_init(vn_port);
+ fc_lport_init(vn_port);
+ fc_disc_init(vn_port);
+ fc_disc_config(vn_port, vn_port);
+
+
+ /* Allocate the exchange manager */
+ shost = vport_to_shost(vport);
+ n_port = shost_priv(shost);
+ fc_exch_mgr_list_clone(n_port, vn_port);
+
+ /* Set max frame size */
+ fc_set_mfs(vn_port, QEDF_MFS);
+
+ fc_host_port_type(vn_port->host) = FC_PORTTYPE_UNKNOWN;
+
+ if (disabled) {
+ fc_vport_set_state(vport, FC_VPORT_DISABLED);
+ } else {
+ vn_port->boot_time = jiffies;
+ fc_fabric_login(vn_port);
+ fc_vport_setlink(vn_port);
+ }
+
+ QEDF_INFO(&(base_qedf->dbg_ctx), QEDF_LOG_NPIV, "vn_port=%p.\n",
+ vn_port);
+
+ /* Set up debug context for vport */
+ vport_qedf->dbg_ctx.host_no = vn_port->host->host_no;
+ vport_qedf->dbg_ctx.pdev = base_qedf->pdev;
+
+err2:
+ scsi_host_put(vn_port->host);
+err1:
+ return rc;
+}
+
+static int qedf_vport_destroy(struct fc_vport *vport)
+{
+ struct Scsi_Host *shost = vport_to_shost(vport);
+ struct fc_lport *n_port = shost_priv(shost);
+ struct fc_lport *vn_port = vport->dd_data;
+
+ mutex_lock(&n_port->lp_mutex);
+ list_del(&vn_port->list);
+ mutex_unlock(&n_port->lp_mutex);
+
+ fc_fabric_logoff(vn_port);
+ fc_lport_destroy(vn_port);
+
+ /* Detach from scsi-ml */
+ fc_remove_host(vn_port->host);
+ scsi_remove_host(vn_port->host);
+
+ /*
+ * Only try to release the exchange manager if the vn_port
+ * configuration is complete.
+ */
+ if (vn_port->state == LPORT_ST_READY)
+ fc_exch_mgr_free(vn_port);
+
+ /* Free memory used by statistical counters */
+ fc_lport_free_stats(vn_port);
+
+ /* Release Scsi_Host */
+ if (vn_port->host)
+ scsi_host_put(vn_port->host);
+
+ return 0;
+}
+
+static int qedf_vport_disable(struct fc_vport *vport, bool disable)
+{
+ struct fc_lport *lport = vport->dd_data;
+
+ if (disable) {
+ fc_vport_set_state(vport, FC_VPORT_DISABLED);
+ fc_fabric_logoff(lport);
+ } else {
+ lport->boot_time = jiffies;
+ fc_fabric_login(lport);
+ fc_vport_setlink(lport);
+ }
+ return 0;
+}
+
+/*
+ * During removal we need to wait for all the vports associated with a port
+ * to be destroyed so we avoid a race condition where libfc is still trying
+ * to reap vports while the driver remove function has already reaped the
+ * driver contexts associated with the physical port.
+ */
+static void qedf_wait_for_vport_destroy(struct qedf_ctx *qedf)
+{
+ struct fc_host_attrs *fc_host = shost_to_fc_host(qedf->lport->host);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_NPIV,
+ "Entered.\n");
+ while (fc_host->npiv_vports_inuse > 0) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_NPIV,
+ "Waiting for all vports to be reaped.\n");
+ msleep(1000);
+ }
+}
+
+/**
+ * qedf_fcoe_reset - Resets the fcoe
+ *
+ * @shost: shost the reset is from
+ *
+ * Returns: always 0
+ */
+static int qedf_fcoe_reset(struct Scsi_Host *shost)
+{
+ struct fc_lport *lport = shost_priv(shost);
+
+ fc_fabric_logoff(lport);
+ fc_fabric_login(lport);
+ return 0;
+}
+
+static struct fc_host_statistics *qedf_fc_get_host_stats(struct Scsi_Host
+ *shost)
+{
+ struct fc_host_statistics *qedf_stats;
+ struct fc_lport *lport = shost_priv(shost);
+ struct qedf_ctx *qedf = lport_priv(lport);
+ struct qed_fcoe_stats *fw_fcoe_stats;
+
+ qedf_stats = fc_get_host_stats(shost);
+
+ /* We don't collect offload stats for specific NPIV ports */
+ if (lport->vport)
+ goto out;
+
+ fw_fcoe_stats = kmalloc(sizeof(struct qed_fcoe_stats), GFP_KERNEL);
+ if (!fw_fcoe_stats) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate memory for "
+ "fw_fcoe_stats.\n");
+ goto out;
+ }
+
+ /* Query firmware for offload stats */
+ qed_ops->get_stats(qedf->cdev, fw_fcoe_stats);
+
+ /*
+ * The expectation is that we add our offload stats to the stats
+ * being maintained by libfc each time the fc_get_host_status callback
+ * is invoked. The additions are not carried over for each call to
+ * the fc_get_host_stats callback.
+ */
+ qedf_stats->tx_frames += fw_fcoe_stats->fcoe_tx_data_pkt_cnt +
+ fw_fcoe_stats->fcoe_tx_xfer_pkt_cnt +
+ fw_fcoe_stats->fcoe_tx_other_pkt_cnt;
+ qedf_stats->rx_frames += fw_fcoe_stats->fcoe_rx_data_pkt_cnt +
+ fw_fcoe_stats->fcoe_rx_xfer_pkt_cnt +
+ fw_fcoe_stats->fcoe_rx_other_pkt_cnt;
+ qedf_stats->fcp_input_megabytes += fw_fcoe_stats->fcoe_rx_byte_cnt /
+ 1000000;
+ qedf_stats->fcp_output_megabytes += fw_fcoe_stats->fcoe_tx_byte_cnt /
+ 1000000;
+ qedf_stats->rx_words += fw_fcoe_stats->fcoe_rx_byte_cnt / 4;
+ qedf_stats->tx_words += fw_fcoe_stats->fcoe_tx_byte_cnt / 4;
+ qedf_stats->invalid_crc_count +=
+ fw_fcoe_stats->fcoe_silent_drop_pkt_crc_error_cnt;
+ qedf_stats->dumped_frames =
+ fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt;
+ qedf_stats->error_frames +=
+ fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt;
+ qedf_stats->fcp_input_requests += qedf->input_requests;
+ qedf_stats->fcp_output_requests += qedf->output_requests;
+ qedf_stats->fcp_control_requests += qedf->control_requests;
+ qedf_stats->fcp_packet_aborts += qedf->packet_aborts;
+ qedf_stats->fcp_frame_alloc_failures += qedf->alloc_failures;
+
+ kfree(fw_fcoe_stats);
+out:
+ return qedf_stats;
+}
+
+static struct fc_function_template qedf_fc_transport_fn = {
+ .show_host_node_name = 1,
+ .show_host_port_name = 1,
+ .show_host_supported_classes = 1,
+ .show_host_supported_fc4s = 1,
+ .show_host_active_fc4s = 1,
+ .show_host_maxframe_size = 1,
+
+ .show_host_port_id = 1,
+ .show_host_supported_speeds = 1,
+ .get_host_speed = fc_get_host_speed,
+ .show_host_speed = 1,
+ .show_host_port_type = 1,
+ .get_host_port_state = fc_get_host_port_state,
+ .show_host_port_state = 1,
+ .show_host_symbolic_name = 1,
+
+ /*
+ * Tell FC transport to allocate enough space to store the backpointer
+ * for the associate qedf_rport struct.
+ */
+ .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
+ sizeof(struct qedf_rport)),
+ .show_rport_maxframe_size = 1,
+ .show_rport_supported_classes = 1,
+ .show_host_fabric_name = 1,
+ .show_starget_node_name = 1,
+ .show_starget_port_name = 1,
+ .show_starget_port_id = 1,
+ .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
+ .show_rport_dev_loss_tmo = 1,
+ .get_fc_host_stats = qedf_fc_get_host_stats,
+ .issue_fc_host_lip = qedf_fcoe_reset,
+ .vport_create = qedf_vport_create,
+ .vport_delete = qedf_vport_destroy,
+ .vport_disable = qedf_vport_disable,
+ .bsg_request = fc_lport_bsg_request,
+};
+
+static struct fc_function_template qedf_fc_vport_transport_fn = {
+ .show_host_node_name = 1,
+ .show_host_port_name = 1,
+ .show_host_supported_classes = 1,
+ .show_host_supported_fc4s = 1,
+ .show_host_active_fc4s = 1,
+ .show_host_maxframe_size = 1,
+ .show_host_port_id = 1,
+ .show_host_supported_speeds = 1,
+ .get_host_speed = fc_get_host_speed,
+ .show_host_speed = 1,
+ .show_host_port_type = 1,
+ .get_host_port_state = fc_get_host_port_state,
+ .show_host_port_state = 1,
+ .show_host_symbolic_name = 1,
+ .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
+ sizeof(struct qedf_rport)),
+ .show_rport_maxframe_size = 1,
+ .show_rport_supported_classes = 1,
+ .show_host_fabric_name = 1,
+ .show_starget_node_name = 1,
+ .show_starget_port_name = 1,
+ .show_starget_port_id = 1,
+ .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
+ .show_rport_dev_loss_tmo = 1,
+ .get_fc_host_stats = fc_get_host_stats,
+ .issue_fc_host_lip = qedf_fcoe_reset,
+ .bsg_request = fc_lport_bsg_request,
+};
+
+static bool qedf_fp_has_work(struct qedf_fastpath *fp)
+{
+ struct qedf_ctx *qedf = fp->qedf;
+ struct global_queue *que;
+ struct qed_sb_info *sb_info = fp->sb_info;
+ struct status_block *sb = sb_info->sb_virt;
+ u16 prod_idx;
+
+ /* Get the pointer to the global CQ this completion is on */
+ que = qedf->global_queues[fp->sb_id];
+
+ /* Be sure all responses have been written to PI */
+ rmb();
+
+ /* Get the current firmware producer index */
+ prod_idx = sb->pi_array[QEDF_FCOE_PARAMS_GL_RQ_PI];
+
+ return (que->cq_prod_idx != prod_idx);
+}
+
+/*
+ * Interrupt handler code.
+ */
+
+/* Process completion queue and copy CQE contents for deferred processesing
+ *
+ * Return true if we should wake the I/O thread, false if not.
+ */
+static bool qedf_process_completions(struct qedf_fastpath *fp)
+{
+ struct qedf_ctx *qedf = fp->qedf;
+ struct qed_sb_info *sb_info = fp->sb_info;
+ struct status_block *sb = sb_info->sb_virt;
+ struct global_queue *que;
+ u16 prod_idx;
+ struct fcoe_cqe *cqe;
+ struct qedf_io_work *io_work;
+ int num_handled = 0;
+ unsigned int cpu;
+ struct qedf_ioreq *io_req = NULL;
+ u16 xid;
+ u16 new_cqes;
+ u32 comp_type;
+
+ /* Get the current firmware producer index */
+ prod_idx = sb->pi_array[QEDF_FCOE_PARAMS_GL_RQ_PI];
+
+ /* Get the pointer to the global CQ this completion is on */
+ que = qedf->global_queues[fp->sb_id];
+
+ /* Calculate the amount of new elements since last processing */
+ new_cqes = (prod_idx >= que->cq_prod_idx) ?
+ (prod_idx - que->cq_prod_idx) :
+ 0x10000 - que->cq_prod_idx + prod_idx;
+
+ /* Save producer index */
+ que->cq_prod_idx = prod_idx;
+
+ while (new_cqes) {
+ fp->completions++;
+ num_handled++;
+ cqe = &que->cq[que->cq_cons_idx];
+
+ comp_type = (cqe->cqe_data >> FCOE_CQE_CQE_TYPE_SHIFT) &
+ FCOE_CQE_CQE_TYPE_MASK;
+
+ /*
+ * Process unsolicited CQEs directly in the interrupt handler
+ * sine we need the fastpath ID
+ */
+ if (comp_type == FCOE_UNSOLIC_CQE_TYPE) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_UNSOL,
+ "Unsolicated CQE.\n");
+ qedf_process_unsol_compl(qedf, fp->sb_id, cqe);
+ /*
+ * Don't add a work list item. Increment consumer
+ * consumer index and move on.
+ */
+ goto inc_idx;
+ }
+
+ xid = cqe->cqe_data & FCOE_CQE_TASK_ID_MASK;
+ io_req = &qedf->cmd_mgr->cmds[xid];
+
+ /*
+ * Figure out which percpu thread we should queue this I/O
+ * on.
+ */
+ if (!io_req)
+ /* If there is not io_req assocated with this CQE
+ * just queue it on CPU 0
+ */
+ cpu = 0;
+ else {
+ cpu = io_req->cpu;
+ io_req->int_cpu = smp_processor_id();
+ }
+
+ io_work = mempool_alloc(qedf->io_mempool, GFP_ATOMIC);
+ if (!io_work) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
+ "work for I/O completion.\n");
+ continue;
+ }
+ memset(io_work, 0, sizeof(struct qedf_io_work));
+
+ INIT_WORK(&io_work->work, qedf_fp_io_handler);
+
+ /* Copy contents of CQE for deferred processing */
+ memcpy(&io_work->cqe, cqe, sizeof(struct fcoe_cqe));
+
+ io_work->qedf = fp->qedf;
+ io_work->fp = NULL; /* Only used for unsolicited frames */
+
+ queue_work_on(cpu, qedf_io_wq, &io_work->work);
+
+inc_idx:
+ que->cq_cons_idx++;
+ if (que->cq_cons_idx == fp->cq_num_entries)
+ que->cq_cons_idx = 0;
+ new_cqes--;
+ }
+
+ return true;
+}
+
+
+/* MSI-X fastpath handler code */
+static irqreturn_t qedf_msix_handler(int irq, void *dev_id)
+{
+ struct qedf_fastpath *fp = dev_id;
+
+ if (!fp) {
+ QEDF_ERR(NULL, "fp is null.\n");
+ return IRQ_HANDLED;
+ }
+ if (!fp->sb_info) {
+ QEDF_ERR(NULL, "fp->sb_info in null.");
+ return IRQ_HANDLED;
+ }
+
+ /*
+ * Disable interrupts for this status block while we process new
+ * completions
+ */
+ qed_sb_ack(fp->sb_info, IGU_INT_DISABLE, 0 /*do not update*/);
+
+ while (1) {
+ qedf_process_completions(fp);
+
+ if (qedf_fp_has_work(fp) == 0) {
+ /* Update the sb information */
+ qed_sb_update_sb_idx(fp->sb_info);
+
+ /* Check for more work */
+ rmb();
+
+ if (qedf_fp_has_work(fp) == 0) {
+ /* Re-enable interrupts */
+ qed_sb_ack(fp->sb_info, IGU_INT_ENABLE, 1);
+ return IRQ_HANDLED;
+ }
+ }
+ }
+
+ /* Do we ever want to break out of above loop? */
+ return IRQ_HANDLED;
+}
+
+/* simd handler for MSI/INTa */
+static void qedf_simd_int_handler(void *cookie)
+{
+ /* Cookie is qedf_ctx struct */
+ struct qedf_ctx *qedf = (struct qedf_ctx *)cookie;
+
+ QEDF_WARN(&(qedf->dbg_ctx), "qedf=%p.\n", qedf);
+}
+
+#define QEDF_SIMD_HANDLER_NUM 0
+static void qedf_sync_free_irqs(struct qedf_ctx *qedf)
+{
+ int i;
+
+ if (qedf->int_info.msix_cnt) {
+ for (i = 0; i < qedf->int_info.used_cnt; i++) {
+ synchronize_irq(qedf->int_info.msix[i].vector);
+ irq_set_affinity_hint(qedf->int_info.msix[i].vector,
+ NULL);
+ irq_set_affinity_notifier(qedf->int_info.msix[i].vector,
+ NULL);
+ free_irq(qedf->int_info.msix[i].vector,
+ &qedf->fp_array[i]);
+ }
+ } else
+ qed_ops->common->simd_handler_clean(qedf->cdev,
+ QEDF_SIMD_HANDLER_NUM);
+
+ qedf->int_info.used_cnt = 0;
+ qed_ops->common->set_fp_int(qedf->cdev, 0);
+}
+
+static int qedf_request_msix_irq(struct qedf_ctx *qedf)
+{
+ int i, rc, cpu;
+
+ cpu = cpumask_first(cpu_online_mask);
+ for (i = 0; i < qedf->num_queues; i++) {
+ rc = request_irq(qedf->int_info.msix[i].vector,
+ qedf_msix_handler, 0, "qedf", &qedf->fp_array[i]);
+
+ if (rc) {
+ QEDF_WARN(&(qedf->dbg_ctx), "request_irq failed.\n");
+ qedf_sync_free_irqs(qedf);
+ return rc;
+ }
+
+ qedf->int_info.used_cnt++;
+ rc = irq_set_affinity_hint(qedf->int_info.msix[i].vector,
+ get_cpu_mask(cpu));
+ cpu = cpumask_next(cpu, cpu_online_mask);
+ }
+
+ return 0;
+}
+
+static int qedf_setup_int(struct qedf_ctx *qedf)
+{
+ int rc = 0;
+
+ /*
+ * Learn interrupt configuration
+ */
+ rc = qed_ops->common->set_fp_int(qedf->cdev, num_online_cpus());
+
+ rc = qed_ops->common->get_fp_int(qedf->cdev, &qedf->int_info);
+ if (rc)
+ return 0;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Number of msix_cnt = "
+ "0x%x num of cpus = 0x%x\n", qedf->int_info.msix_cnt,
+ num_online_cpus());
+
+ if (qedf->int_info.msix_cnt)
+ return qedf_request_msix_irq(qedf);
+
+ qed_ops->common->simd_handler_config(qedf->cdev, &qedf,
+ QEDF_SIMD_HANDLER_NUM, qedf_simd_int_handler);
+ qedf->int_info.used_cnt = 1;
+
+ return 0;
+}
+
+/* Main function for libfc frame reception */
+static void qedf_recv_frame(struct qedf_ctx *qedf,
+ struct sk_buff *skb)
+{
+ u32 fr_len;
+ struct fc_lport *lport;
+ struct fc_frame_header *fh;
+ struct fcoe_crc_eof crc_eof;
+ struct fc_frame *fp;
+ u8 *mac = NULL;
+ u8 *dest_mac = NULL;
+ struct fcoe_hdr *hp;
+ struct qedf_rport *fcport;
+
+ lport = qedf->lport;
+ if (lport == NULL || lport->state == LPORT_ST_DISABLED) {
+ QEDF_WARN(NULL, "Invalid lport struct or lport disabled.\n");
+ kfree_skb(skb);
+ return;
+ }
+
+ if (skb_is_nonlinear(skb))
+ skb_linearize(skb);
+ mac = eth_hdr(skb)->h_source;
+ dest_mac = eth_hdr(skb)->h_dest;
+
+ /* Pull the header */
+ hp = (struct fcoe_hdr *)skb->data;
+ fh = (struct fc_frame_header *) skb_transport_header(skb);
+ skb_pull(skb, sizeof(struct fcoe_hdr));
+ fr_len = skb->len - sizeof(struct fcoe_crc_eof);
+
+ fp = (struct fc_frame *)skb;
+ fc_frame_init(fp);
+ fr_dev(fp) = lport;
+ fr_sof(fp) = hp->fcoe_sof;
+ if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
+ kfree_skb(skb);
+ return;
+ }
+ fr_eof(fp) = crc_eof.fcoe_eof;
+ fr_crc(fp) = crc_eof.fcoe_crc32;
+ if (pskb_trim(skb, fr_len)) {
+ kfree_skb(skb);
+ return;
+ }
+
+ fh = fc_frame_header_get(fp);
+
+ if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
+ fh->fh_type == FC_TYPE_FCP) {
+ /* Drop FCP data. We dont this in L2 path */
+ kfree_skb(skb);
+ return;
+ }
+ if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
+ fh->fh_type == FC_TYPE_ELS) {
+ switch (fc_frame_payload_op(fp)) {
+ case ELS_LOGO:
+ if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
+ /* drop non-FIP LOGO */
+ kfree_skb(skb);
+ return;
+ }
+ break;
+ }
+ }
+
+ if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
+ /* Drop incoming ABTS */
+ kfree_skb(skb);
+ return;
+ }
+
+ /*
+ * If a connection is uploading, drop incoming FCoE frames as there
+ * is a small window where we could try to return a frame while libfc
+ * is trying to clean things up.
+ */
+
+ /* Get fcport associated with d_id if it exists */
+ fcport = qedf_fcport_lookup(qedf, ntoh24(fh->fh_d_id));
+
+ if (fcport && test_bit(QEDF_RPORT_UPLOADING_CONNECTION,
+ &fcport->flags)) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "Connection uploading, dropping fp=%p.\n", fp);
+ kfree_skb(skb);
+ return;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FCoE frame receive: "
+ "skb=%p fp=%p src=%06x dest=%06x r_ctl=%x fh_type=%x.\n", skb, fp,
+ ntoh24(fh->fh_s_id), ntoh24(fh->fh_d_id), fh->fh_r_ctl,
+ fh->fh_type);
+ if (qedf_dump_frames)
+ print_hex_dump(KERN_WARNING, "fcoe: ", DUMP_PREFIX_OFFSET, 16,
+ 1, skb->data, skb->len, false);
+ fc_exch_recv(lport, fp);
+}
+
+static void qedf_ll2_process_skb(struct work_struct *work)
+{
+ struct qedf_skb_work *skb_work =
+ container_of(work, struct qedf_skb_work, work);
+ struct qedf_ctx *qedf = skb_work->qedf;
+ struct sk_buff *skb = skb_work->skb;
+ struct ethhdr *eh;
+
+ if (!qedf) {
+ QEDF_ERR(NULL, "qedf is NULL\n");
+ goto err_out;
+ }
+
+ eh = (struct ethhdr *)skb->data;
+
+ /* Undo VLAN encapsulation */
+ if (eh->h_proto == htons(ETH_P_8021Q)) {
+ memmove((u8 *)eh + VLAN_HLEN, eh, ETH_ALEN * 2);
+ eh = (struct ethhdr *)skb_pull(skb, VLAN_HLEN);
+ skb_reset_mac_header(skb);
+ }
+
+ /*
+ * Process either a FIP frame or FCoE frame based on the
+ * protocol value. If it's not either just drop the
+ * frame.
+ */
+ if (eh->h_proto == htons(ETH_P_FIP)) {
+ qedf_fip_recv(qedf, skb);
+ goto out;
+ } else if (eh->h_proto == htons(ETH_P_FCOE)) {
+ __skb_pull(skb, ETH_HLEN);
+ qedf_recv_frame(qedf, skb);
+ goto out;
+ } else
+ goto err_out;
+
+err_out:
+ kfree_skb(skb);
+out:
+ kfree(skb_work);
+ return;
+}
+
+static int qedf_ll2_rx(void *cookie, struct sk_buff *skb,
+ u32 arg1, u32 arg2)
+{
+ struct qedf_ctx *qedf = (struct qedf_ctx *)cookie;
+ struct qedf_skb_work *skb_work;
+
+ skb_work = kzalloc(sizeof(struct qedf_skb_work), GFP_ATOMIC);
+ if (!skb_work) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate skb_work so "
+ "dropping frame.\n");
+ kfree_skb(skb);
+ return 0;
+ }
+
+ INIT_WORK(&skb_work->work, qedf_ll2_process_skb);
+ skb_work->skb = skb;
+ skb_work->qedf = qedf;
+ queue_work(qedf->ll2_recv_wq, &skb_work->work);
+
+ return 0;
+}
+
+static struct qed_ll2_cb_ops qedf_ll2_cb_ops = {
+ .rx_cb = qedf_ll2_rx,
+ .tx_cb = NULL,
+};
+
+/* Main thread to process I/O completions */
+void qedf_fp_io_handler(struct work_struct *work)
+{
+ struct qedf_io_work *io_work =
+ container_of(work, struct qedf_io_work, work);
+ u32 comp_type;
+
+ /*
+ * Deferred part of unsolicited CQE sends
+ * frame to libfc.
+ */
+ comp_type = (io_work->cqe.cqe_data >>
+ FCOE_CQE_CQE_TYPE_SHIFT) &
+ FCOE_CQE_CQE_TYPE_MASK;
+ if (comp_type == FCOE_UNSOLIC_CQE_TYPE &&
+ io_work->fp)
+ fc_exch_recv(io_work->qedf->lport, io_work->fp);
+ else
+ qedf_process_cqe(io_work->qedf, &io_work->cqe);
+
+ kfree(io_work);
+}
+
+static int qedf_alloc_and_init_sb(struct qedf_ctx *qedf,
+ struct qed_sb_info *sb_info, u16 sb_id)
+{
+ struct status_block *sb_virt;
+ dma_addr_t sb_phys;
+ int ret;
+
+ sb_virt = dma_alloc_coherent(&qedf->pdev->dev,
+ sizeof(struct status_block), &sb_phys, GFP_KERNEL);
+
+ if (!sb_virt) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Status block allocation failed "
+ "for id = %d.\n", sb_id);
+ return -ENOMEM;
+ }
+
+ ret = qed_ops->common->sb_init(qedf->cdev, sb_info, sb_virt, sb_phys,
+ sb_id, QED_SB_TYPE_STORAGE);
+
+ if (ret) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Status block initialization "
+ "failed for id = %d.\n", sb_id);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void qedf_free_sb(struct qedf_ctx *qedf, struct qed_sb_info *sb_info)
+{
+ if (sb_info->sb_virt)
+ dma_free_coherent(&qedf->pdev->dev, sizeof(*sb_info->sb_virt),
+ (void *)sb_info->sb_virt, sb_info->sb_phys);
+}
+
+static void qedf_destroy_sb(struct qedf_ctx *qedf)
+{
+ int id;
+ struct qedf_fastpath *fp = NULL;
+
+ for (id = 0; id < qedf->num_queues; id++) {
+ fp = &(qedf->fp_array[id]);
+ if (fp->sb_id == QEDF_SB_ID_NULL)
+ break;
+ qedf_free_sb(qedf, fp->sb_info);
+ kfree(fp->sb_info);
+ }
+ kfree(qedf->fp_array);
+}
+
+static int qedf_prepare_sb(struct qedf_ctx *qedf)
+{
+ int id;
+ struct qedf_fastpath *fp;
+ int ret;
+
+ qedf->fp_array =
+ kcalloc(qedf->num_queues, sizeof(struct qedf_fastpath),
+ GFP_KERNEL);
+
+ if (!qedf->fp_array) {
+ QEDF_ERR(&(qedf->dbg_ctx), "fastpath array allocation "
+ "failed.\n");
+ return -ENOMEM;
+ }
+
+ for (id = 0; id < qedf->num_queues; id++) {
+ fp = &(qedf->fp_array[id]);
+ fp->sb_id = QEDF_SB_ID_NULL;
+ fp->sb_info = kcalloc(1, sizeof(*fp->sb_info), GFP_KERNEL);
+ if (!fp->sb_info) {
+ QEDF_ERR(&(qedf->dbg_ctx), "SB info struct "
+ "allocation failed.\n");
+ goto err;
+ }
+ ret = qedf_alloc_and_init_sb(qedf, fp->sb_info, id);
+ if (ret) {
+ QEDF_ERR(&(qedf->dbg_ctx), "SB allocation and "
+ "initialization failed.\n");
+ goto err;
+ }
+ fp->sb_id = id;
+ fp->qedf = qedf;
+ fp->cq_num_entries =
+ qedf->global_queues[id]->cq_mem_size /
+ sizeof(struct fcoe_cqe);
+ }
+err:
+ return 0;
+}
+
+void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe)
+{
+ u16 xid;
+ struct qedf_ioreq *io_req;
+ struct qedf_rport *fcport;
+ u32 comp_type;
+
+ comp_type = (cqe->cqe_data >> FCOE_CQE_CQE_TYPE_SHIFT) &
+ FCOE_CQE_CQE_TYPE_MASK;
+
+ xid = cqe->cqe_data & FCOE_CQE_TASK_ID_MASK;
+ io_req = &qedf->cmd_mgr->cmds[xid];
+
+ /* Completion not for a valid I/O anymore so just return */
+ if (!io_req)
+ return;
+
+ fcport = io_req->fcport;
+
+ if (fcport == NULL) {
+ QEDF_ERR(&(qedf->dbg_ctx), "fcport is NULL.\n");
+ return;
+ }
+
+ /*
+ * Check that fcport is offloaded. If it isn't then the spinlock
+ * isn't valid and shouldn't be taken. We should just return.
+ */
+ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Session not offloaded yet.\n");
+ return;
+ }
+
+
+ switch (comp_type) {
+ case FCOE_GOOD_COMPLETION_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ switch (io_req->cmd_type) {
+ case QEDF_SCSI_CMD:
+ qedf_scsi_completion(qedf, cqe, io_req);
+ break;
+ case QEDF_ELS:
+ qedf_process_els_compl(qedf, cqe, io_req);
+ break;
+ case QEDF_TASK_MGMT_CMD:
+ qedf_process_tmf_compl(qedf, cqe, io_req);
+ break;
+ case QEDF_SEQ_CLEANUP:
+ qedf_process_seq_cleanup_compl(qedf, cqe, io_req);
+ break;
+ }
+ break;
+ case FCOE_ERROR_DETECTION_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Error detect CQE.\n");
+ qedf_process_error_detect(qedf, cqe, io_req);
+ break;
+ case FCOE_EXCH_CLEANUP_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Cleanup CQE.\n");
+ qedf_process_cleanup_compl(qedf, cqe, io_req);
+ break;
+ case FCOE_ABTS_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Abort CQE.\n");
+ qedf_process_abts_compl(qedf, cqe, io_req);
+ break;
+ case FCOE_DUMMY_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Dummy CQE.\n");
+ break;
+ case FCOE_LOCAL_COMP_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Local completion CQE.\n");
+ break;
+ case FCOE_WARNING_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Warning CQE.\n");
+ qedf_process_warning_compl(qedf, cqe, io_req);
+ break;
+ case MAX_FCOE_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Max FCoE CQE.\n");
+ break;
+ default:
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Default CQE.\n");
+ break;
+ }
+}
+
+static void qedf_free_bdq(struct qedf_ctx *qedf)
+{
+ int i;
+
+ if (qedf->bdq_pbl_list)
+ dma_free_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
+ qedf->bdq_pbl_list, qedf->bdq_pbl_list_dma);
+
+ if (qedf->bdq_pbl)
+ dma_free_coherent(&qedf->pdev->dev, qedf->bdq_pbl_mem_size,
+ qedf->bdq_pbl, qedf->bdq_pbl_dma);
+
+ for (i = 0; i < QEDF_BDQ_SIZE; i++) {
+ if (qedf->bdq[i].buf_addr) {
+ dma_free_coherent(&qedf->pdev->dev, QEDF_BDQ_BUF_SIZE,
+ qedf->bdq[i].buf_addr, qedf->bdq[i].buf_dma);
+ }
+ }
+}
+
+static void qedf_free_global_queues(struct qedf_ctx *qedf)
+{
+ int i;
+ struct global_queue **gl = qedf->global_queues;
+
+ for (i = 0; i < qedf->num_queues; i++) {
+ if (!gl[i])
+ continue;
+
+ if (gl[i]->cq)
+ dma_free_coherent(&qedf->pdev->dev,
+ gl[i]->cq_mem_size, gl[i]->cq, gl[i]->cq_dma);
+ if (gl[i]->cq_pbl)
+ dma_free_coherent(&qedf->pdev->dev, gl[i]->cq_pbl_size,
+ gl[i]->cq_pbl, gl[i]->cq_pbl_dma);
+
+ kfree(gl[i]);
+ }
+
+ qedf_free_bdq(qedf);
+}
+
+static int qedf_alloc_bdq(struct qedf_ctx *qedf)
+{
+ int i;
+ struct scsi_bd *pbl;
+ u64 *list;
+ dma_addr_t page;
+
+ /* Alloc dma memory for BDQ buffers */
+ for (i = 0; i < QEDF_BDQ_SIZE; i++) {
+ qedf->bdq[i].buf_addr = dma_alloc_coherent(&qedf->pdev->dev,
+ QEDF_BDQ_BUF_SIZE, &qedf->bdq[i].buf_dma, GFP_KERNEL);
+ if (!qedf->bdq[i].buf_addr) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate BDQ "
+ "buffer %d.\n", i);
+ return -ENOMEM;
+ }
+ }
+
+ /* Alloc dma memory for BDQ page buffer list */
+ qedf->bdq_pbl_mem_size =
+ QEDF_BDQ_SIZE * sizeof(struct scsi_bd);
+ qedf->bdq_pbl_mem_size =
+ ALIGN(qedf->bdq_pbl_mem_size, QEDF_PAGE_SIZE);
+
+ qedf->bdq_pbl = dma_alloc_coherent(&qedf->pdev->dev,
+ qedf->bdq_pbl_mem_size, &qedf->bdq_pbl_dma, GFP_KERNEL);
+ if (!qedf->bdq_pbl) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate BDQ PBL.\n");
+ return -ENOMEM;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "BDQ PBL addr=0x%p dma=0x%llx.\n", qedf->bdq_pbl,
+ qedf->bdq_pbl_dma);
+
+ /*
+ * Populate BDQ PBL with physical and virtual address of individual
+ * BDQ buffers
+ */
+ pbl = (struct scsi_bd *)qedf->bdq_pbl;
+ for (i = 0; i < QEDF_BDQ_SIZE; i++) {
+ pbl->address.hi = cpu_to_le32(U64_HI(qedf->bdq[i].buf_dma));
+ pbl->address.lo = cpu_to_le32(U64_LO(qedf->bdq[i].buf_dma));
+ pbl->opaque.hi = 0;
+ /* Opaque lo data is an index into the BDQ array */
+ pbl->opaque.lo = cpu_to_le32(i);
+ pbl++;
+ }
+
+ /* Allocate list of PBL pages */
+ qedf->bdq_pbl_list = dma_alloc_coherent(&qedf->pdev->dev,
+ QEDF_PAGE_SIZE, &qedf->bdq_pbl_list_dma, GFP_KERNEL);
+ if (!qedf->bdq_pbl_list) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate list of PBL "
+ "pages.\n");
+ return -ENOMEM;
+ }
+ memset(qedf->bdq_pbl_list, 0, QEDF_PAGE_SIZE);
+
+ /*
+ * Now populate PBL list with pages that contain pointers to the
+ * individual buffers.
+ */
+ qedf->bdq_pbl_list_num_entries = qedf->bdq_pbl_mem_size /
+ QEDF_PAGE_SIZE;
+ list = (u64 *)qedf->bdq_pbl_list;
+ page = qedf->bdq_pbl_list_dma;
+ for (i = 0; i < qedf->bdq_pbl_list_num_entries; i++) {
+ *list = qedf->bdq_pbl_dma;
+ list++;
+ page += QEDF_PAGE_SIZE;
+ }
+
+ return 0;
+}
+
+static int qedf_alloc_global_queues(struct qedf_ctx *qedf)
+{
+ u32 *list;
+ int i;
+ int status = 0, rc;
+ u32 *pbl;
+ dma_addr_t page;
+ int num_pages;
+
+ /* Allocate and map CQs, RQs */
+ /*
+ * Number of global queues (CQ / RQ). This should
+ * be <= number of available MSIX vectors for the PF
+ */
+ if (!qedf->num_queues) {
+ QEDF_ERR(&(qedf->dbg_ctx), "No MSI-X vectors available!\n");
+ return 1;
+ }
+
+ /*
+ * Make sure we allocated the PBL that will contain the physical
+ * addresses of our queues
+ */
+ if (!qedf->p_cpuq) {
+ status = 1;
+ goto mem_alloc_failure;
+ }
+
+ qedf->global_queues = kzalloc((sizeof(struct global_queue *)
+ * qedf->num_queues), GFP_KERNEL);
+ if (!qedf->global_queues) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate global "
+ "queues array ptr memory\n");
+ return -ENOMEM;
+ }
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "qedf->global_queues=%p.\n", qedf->global_queues);
+
+ /* Allocate DMA coherent buffers for BDQ */
+ rc = qedf_alloc_bdq(qedf);
+ if (rc)
+ goto mem_alloc_failure;
+
+ /* Allocate a CQ and an associated PBL for each MSI-X vector */
+ for (i = 0; i < qedf->num_queues; i++) {
+ qedf->global_queues[i] = kzalloc(sizeof(struct global_queue),
+ GFP_KERNEL);
+ if (!qedf->global_queues[i]) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Unable to allocation "
+ "global queue %d.\n", i);
+ goto mem_alloc_failure;
+ }
+
+ qedf->global_queues[i]->cq_mem_size =
+ FCOE_PARAMS_CQ_NUM_ENTRIES * sizeof(struct fcoe_cqe);
+ qedf->global_queues[i]->cq_mem_size =
+ ALIGN(qedf->global_queues[i]->cq_mem_size, QEDF_PAGE_SIZE);
+
+ qedf->global_queues[i]->cq_pbl_size =
+ (qedf->global_queues[i]->cq_mem_size /
+ PAGE_SIZE) * sizeof(void *);
+ qedf->global_queues[i]->cq_pbl_size =
+ ALIGN(qedf->global_queues[i]->cq_pbl_size, QEDF_PAGE_SIZE);
+
+ qedf->global_queues[i]->cq =
+ dma_alloc_coherent(&qedf->pdev->dev,
+ qedf->global_queues[i]->cq_mem_size,
+ &qedf->global_queues[i]->cq_dma, GFP_KERNEL);
+
+ if (!qedf->global_queues[i]->cq) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
+ "cq.\n");
+ status = -ENOMEM;
+ goto mem_alloc_failure;
+ }
+ memset(qedf->global_queues[i]->cq, 0,
+ qedf->global_queues[i]->cq_mem_size);
+
+ qedf->global_queues[i]->cq_pbl =
+ dma_alloc_coherent(&qedf->pdev->dev,
+ qedf->global_queues[i]->cq_pbl_size,
+ &qedf->global_queues[i]->cq_pbl_dma, GFP_KERNEL);
+
+ if (!qedf->global_queues[i]->cq_pbl) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
+ "cq PBL.\n");
+ status = -ENOMEM;
+ goto mem_alloc_failure;
+ }
+ memset(qedf->global_queues[i]->cq_pbl, 0,
+ qedf->global_queues[i]->cq_pbl_size);
+
+ /* Create PBL */
+ num_pages = qedf->global_queues[i]->cq_mem_size /
+ QEDF_PAGE_SIZE;
+ page = qedf->global_queues[i]->cq_dma;
+ pbl = (u32 *)qedf->global_queues[i]->cq_pbl;
+
+ while (num_pages--) {
+ *pbl = U64_LO(page);
+ pbl++;
+ *pbl = U64_HI(page);
+ pbl++;
+ page += QEDF_PAGE_SIZE;
+ }
+ /* Set the initial consumer index for cq */
+ qedf->global_queues[i]->cq_cons_idx = 0;
+ }
+
+ list = (u32 *)qedf->p_cpuq;
+
+ /*
+ * The list is built as follows: CQ#0 PBL pointer, RQ#0 PBL pointer,
+ * CQ#1 PBL pointer, RQ#1 PBL pointer, etc. Each PBL pointer points
+ * to the physical address which contains an array of pointers to
+ * the physical addresses of the specific queue pages.
+ */
+ for (i = 0; i < qedf->num_queues; i++) {
+ *list = U64_LO(qedf->global_queues[i]->cq_pbl_dma);
+ list++;
+ *list = U64_HI(qedf->global_queues[i]->cq_pbl_dma);
+ list++;
+ *list = U64_LO(0);
+ list++;
+ *list = U64_HI(0);
+ list++;
+ }
+
+ return 0;
+
+mem_alloc_failure:
+ qedf_free_global_queues(qedf);
+ return status;
+}
+
+static int qedf_set_fcoe_pf_param(struct qedf_ctx *qedf)
+{
+ u8 sq_num_pbl_pages;
+ u32 sq_mem_size;
+ u32 cq_mem_size;
+ u32 cq_num_entries;
+ int rval;
+
+ /*
+ * The number of completion queues/fastpath interrupts/status blocks
+ * we allocation is the minimum off:
+ *
+ * Number of CPUs
+ * Number of MSI-X vectors
+ * Max number allocated in hardware (QEDF_MAX_NUM_CQS)
+ */
+ qedf->num_queues = min((unsigned int)QEDF_MAX_NUM_CQS,
+ num_online_cpus());
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Number of CQs is %d.\n",
+ qedf->num_queues);
+
+ qedf->p_cpuq = pci_alloc_consistent(qedf->pdev,
+ qedf->num_queues * sizeof(struct qedf_glbl_q_params),
+ &qedf->hw_p_cpuq);
+
+ if (!qedf->p_cpuq) {
+ QEDF_ERR(&(qedf->dbg_ctx), "pci_alloc_consistent failed.\n");
+ return 1;
+ }
+
+ rval = qedf_alloc_global_queues(qedf);
+ if (rval) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Global queue allocation "
+ "failed.\n");
+ return 1;
+ }
+
+ /* Calculate SQ PBL size in the same manner as in qedf_sq_alloc() */
+ sq_mem_size = SQ_NUM_ENTRIES * sizeof(struct fcoe_wqe);
+ sq_mem_size = ALIGN(sq_mem_size, QEDF_PAGE_SIZE);
+ sq_num_pbl_pages = (sq_mem_size / QEDF_PAGE_SIZE);
+
+ /* Calculate CQ num entries */
+ cq_mem_size = FCOE_PARAMS_CQ_NUM_ENTRIES * sizeof(struct fcoe_cqe);
+ cq_mem_size = ALIGN(cq_mem_size, QEDF_PAGE_SIZE);
+ cq_num_entries = cq_mem_size / sizeof(struct fcoe_cqe);
+
+ memset(&(qedf->pf_params), 0,
+ sizeof(qedf->pf_params));
+
+ /* Setup the value for fcoe PF */
+ qedf->pf_params.fcoe_pf_params.num_cons = QEDF_MAX_SESSIONS;
+ qedf->pf_params.fcoe_pf_params.num_tasks = FCOE_PARAMS_NUM_TASKS;
+ qedf->pf_params.fcoe_pf_params.glbl_q_params_addr =
+ (u64)qedf->hw_p_cpuq;
+ qedf->pf_params.fcoe_pf_params.sq_num_pbl_pages = sq_num_pbl_pages;
+
+ qedf->pf_params.fcoe_pf_params.rq_buffer_log_size = 0;
+
+ qedf->pf_params.fcoe_pf_params.cq_num_entries = cq_num_entries;
+ qedf->pf_params.fcoe_pf_params.num_cqs = qedf->num_queues;
+
+ /* log_page_size: 12 for 4KB pages */
+ qedf->pf_params.fcoe_pf_params.log_page_size = ilog2(QEDF_PAGE_SIZE);
+
+ qedf->pf_params.fcoe_pf_params.mtu = 9000;
+ qedf->pf_params.fcoe_pf_params.gl_rq_pi = QEDF_FCOE_PARAMS_GL_RQ_PI;
+ qedf->pf_params.fcoe_pf_params.gl_cmd_pi = QEDF_FCOE_PARAMS_GL_CMD_PI;
+
+ /* BDQ address and size */
+ qedf->pf_params.fcoe_pf_params.bdq_pbl_base_addr[0] =
+ qedf->bdq_pbl_list_dma;
+ qedf->pf_params.fcoe_pf_params.bdq_pbl_num_entries[0] =
+ qedf->bdq_pbl_list_num_entries;
+ qedf->pf_params.fcoe_pf_params.rq_buffer_size = QEDF_BDQ_BUF_SIZE;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "bdq_list=%p bdq_pbl_list_dma=%llx bdq_pbl_list_entries=%d.\n",
+ qedf->bdq_pbl_list,
+ qedf->pf_params.fcoe_pf_params.bdq_pbl_base_addr[0],
+ qedf->pf_params.fcoe_pf_params.bdq_pbl_num_entries[0]);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "cq_num_entries=%d.\n",
+ qedf->pf_params.fcoe_pf_params.cq_num_entries);
+
+ return 0;
+}
+
+/* Free DMA coherent memory for array of queue pointers we pass to qed */
+static void qedf_free_fcoe_pf_param(struct qedf_ctx *qedf)
+{
+ size_t size = 0;
+
+ if (qedf->p_cpuq) {
+ size = qedf->num_queues * sizeof(struct qedf_glbl_q_params);
+ pci_free_consistent(qedf->pdev, size, qedf->p_cpuq,
+ qedf->hw_p_cpuq);
+ }
+
+ qedf_free_global_queues(qedf);
+
+ if (qedf->global_queues)
+ kfree(qedf->global_queues);
+}
+
+/*
+ * PCI driver functions
+ */
+
+static const struct pci_device_id qedf_pci_tbl[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x165c) },
+ { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x8080) },
+ {0}
+};
+MODULE_DEVICE_TABLE(pci, qedf_pci_tbl);
+
+static struct pci_driver qedf_pci_driver = {
+ .name = QEDF_MODULE_NAME,
+ .id_table = qedf_pci_tbl,
+ .probe = qedf_probe,
+ .remove = qedf_remove,
+};
+
+static int __qedf_probe(struct pci_dev *pdev, int mode)
+{
+ int rc;
+ struct fc_lport *lport;
+ struct qedf_ctx *qedf;
+ struct Scsi_Host *host;
+ bool is_vf = false;
+ struct qed_ll2_params params;
+ char host_buf[20];
+ struct qed_link_params link_params;
+ int status;
+ void *task_start, *task_end;
+ struct qed_slowpath_params slowpath_params;
+ struct qed_probe_params qed_params;
+ u16 tmp;
+
+ /*
+ * When doing error recovery we didn't reap the lport so don't try
+ * to reallocate it.
+ */
+ if (mode != QEDF_MODE_RECOVERY) {
+ lport = libfc_host_alloc(&qedf_host_template,
+ sizeof(struct qedf_ctx));
+
+ if (!lport) {
+ QEDF_ERR(NULL, "Could not allocate lport.\n");
+ rc = -ENOMEM;
+ goto err0;
+ }
+
+ /* Initialize qedf_ctx */
+ qedf = lport_priv(lport);
+ qedf->lport = lport;
+ qedf->ctlr.lp = lport;
+ qedf->pdev = pdev;
+ qedf->dbg_ctx.pdev = pdev;
+ qedf->dbg_ctx.host_no = lport->host->host_no;
+ spin_lock_init(&qedf->hba_lock);
+ INIT_LIST_HEAD(&qedf->fcports);
+ qedf->curr_conn_id = QEDF_MAX_SESSIONS - 1;
+ atomic_set(&qedf->num_offloads, 0);
+ qedf->stop_io_on_error = false;
+ pci_set_drvdata(pdev, qedf);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO,
+ "QLogic FastLinQ FCoE Module qedf %s, "
+ "FW %d.%d.%d.%d\n", QEDF_VERSION,
+ FW_MAJOR_VERSION, FW_MINOR_VERSION, FW_REVISION_VERSION,
+ FW_ENGINEERING_VERSION);
+ } else {
+ /* Init pointers during recovery */
+ qedf = pci_get_drvdata(pdev);
+ lport = qedf->lport;
+ }
+
+ host = lport->host;
+
+ /* Allocate mempool for qedf_io_work structs */
+ qedf->io_mempool = mempool_create_slab_pool(QEDF_IO_WORK_MIN,
+ qedf_io_work_cache);
+ if (qedf->io_mempool == NULL) {
+ QEDF_ERR(&(qedf->dbg_ctx), "qedf->io_mempool is NULL.\n");
+ goto err1;
+ }
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO, "qedf->io_mempool=%p.\n",
+ qedf->io_mempool);
+
+ sprintf(host_buf, "qedf_%u_link",
+ qedf->lport->host->host_no);
+ qedf->link_update_wq = create_singlethread_workqueue(host_buf);
+ INIT_DELAYED_WORK(&qedf->link_update, qedf_handle_link_update);
+ INIT_DELAYED_WORK(&qedf->link_recovery, qedf_link_recovery);
+
+ qedf->fipvlan_retries = qedf_fipvlan_retries;
+
+ /*
+ * Common probe. Takes care of basic hardware init and pci_*
+ * functions.
+ */
+ memset(&qed_params, 0, sizeof(qed_params));
+ qed_params.protocol = QED_PROTOCOL_FCOE;
+ qed_params.dp_module = qedf_dp_module;
+ qed_params.dp_level = qedf_dp_level;
+ qed_params.is_vf = is_vf;
+ qedf->cdev = qed_ops->common->probe(pdev, &qed_params);
+ if (!qedf->cdev) {
+ rc = -ENODEV;
+ goto err1;
+ }
+
+ /* queue allocation code should come here
+ * order should be
+ * slowpath_start
+ * status block allocation
+ * interrupt registration (to get min number of queues)
+ * set_fcoe_pf_param
+ * qed_sp_fcoe_func_start
+ */
+ rc = qedf_set_fcoe_pf_param(qedf);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Cannot set fcoe pf param.\n");
+ goto err2;
+ }
+ qed_ops->common->update_pf_params(qedf->cdev, &qedf->pf_params);
+
+ /* Learn information crucial for qedf to progress */
+ rc = qed_ops->fill_dev_info(qedf->cdev, &qedf->dev_info);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to dev info.\n");
+ goto err1;
+ }
+
+ /* Record BDQ producer doorbell addresses */
+ qedf->bdq_primary_prod = qedf->dev_info.primary_dbq_rq_addr;
+ qedf->bdq_secondary_prod = qedf->dev_info.secondary_bdq_rq_addr;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "BDQ primary_prod=%p secondary_prod=%p.\n", qedf->bdq_primary_prod,
+ qedf->bdq_secondary_prod);
+
+ qed_ops->register_ops(qedf->cdev, &qedf_cb_ops, qedf);
+
+ rc = qedf_prepare_sb(qedf);
+ if (rc) {
+
+ QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n");
+ goto err2;
+ }
+
+ /* Start the Slowpath-process */
+ slowpath_params.int_mode = QED_INT_MODE_MSIX;
+ slowpath_params.drv_major = QEDF_DRIVER_MAJOR_VER;
+ slowpath_params.drv_minor = QEDF_DRIVER_MINOR_VER;
+ slowpath_params.drv_rev = QEDF_DRIVER_REV_VER;
+ slowpath_params.drv_eng = QEDF_DRIVER_ENG_VER;
+ memcpy(slowpath_params.name, "qedf", QED_DRV_VER_STR_SIZE);
+ rc = qed_ops->common->slowpath_start(qedf->cdev, &slowpath_params);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n");
+ goto err2;
+ }
+
+ /*
+ * update_pf_params needs to be called before and after slowpath
+ * start
+ */
+ qed_ops->common->update_pf_params(qedf->cdev, &qedf->pf_params);
+
+ /* Setup interrupts */
+ rc = qedf_setup_int(qedf);
+ if (rc)
+ goto err3;
+
+ rc = qed_ops->start(qedf->cdev, &qedf->tasks);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Cannot start FCoE function.\n");
+ goto err4;
+ }
+ task_start = qedf_get_task_mem(&qedf->tasks, 0);
+ task_end = qedf_get_task_mem(&qedf->tasks, MAX_TID_BLOCKS_FCOE - 1);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Task context start=%p, "
+ "end=%p block_size=%u.\n", task_start, task_end,
+ qedf->tasks.size);
+
+ /*
+ * We need to write the number of BDs in the BDQ we've preallocated so
+ * the f/w will do a prefetch and we'll get an unsolicited CQE when a
+ * packet arrives.
+ */
+ qedf->bdq_prod_idx = QEDF_BDQ_SIZE;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Writing %d to primary and secondary BDQ doorbell registers.\n",
+ qedf->bdq_prod_idx);
+ writew(qedf->bdq_prod_idx, qedf->bdq_primary_prod);
+ tmp = readw(qedf->bdq_primary_prod);
+ writew(qedf->bdq_prod_idx, qedf->bdq_secondary_prod);
+ tmp = readw(qedf->bdq_secondary_prod);
+
+ qed_ops->common->set_power_state(qedf->cdev, PCI_D0);
+
+ /* Now that the dev_info struct has been filled in set the MAC
+ * address
+ */
+ ether_addr_copy(qedf->mac, qedf->dev_info.common.hw_mac);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "MAC address is %pM.\n",
+ qedf->mac);
+
+ /* Set the WWNN and WWPN based on the MAC address */
+ qedf->wwnn = fcoe_wwn_from_mac(qedf->mac, 1, 0);
+ qedf->wwpn = fcoe_wwn_from_mac(qedf->mac, 2, 0);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "WWNN=%016llx "
+ "WWPN=%016llx.\n", qedf->wwnn, qedf->wwpn);
+
+ sprintf(host_buf, "host_%d", host->host_no);
+ qed_ops->common->set_id(qedf->cdev, host_buf, QEDF_VERSION);
+
+
+ /* Set xid max values */
+ qedf->max_scsi_xid = QEDF_MAX_SCSI_XID;
+ qedf->max_els_xid = QEDF_MAX_ELS_XID;
+
+ /* Allocate cmd mgr */
+ qedf->cmd_mgr = qedf_cmd_mgr_alloc(qedf);
+ if (!qedf->cmd_mgr) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to allocate cmd mgr.\n");
+ goto err5;
+ }
+
+ if (mode != QEDF_MODE_RECOVERY) {
+ host->transportt = qedf_fc_transport_template;
+ host->can_queue = QEDF_MAX_ELS_XID;
+ host->max_lun = qedf_max_lun;
+ host->max_cmd_len = QEDF_MAX_CDB_LEN;
+ rc = scsi_add_host(host, &pdev->dev);
+ if (rc)
+ goto err6;
+ }
+
+ memset(¶ms, 0, sizeof(params));
+ params.mtu = 9000;
+ ether_addr_copy(params.ll2_mac_address, qedf->mac);
+
+ /* Start LL2 processing thread */
+ snprintf(host_buf, 20, "qedf_%d_ll2", host->host_no);
+ qedf->ll2_recv_wq =
+ create_singlethread_workqueue(host_buf);
+ if (!qedf->ll2_recv_wq) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to LL2 workqueue.\n");
+ goto err7;
+ }
+
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_host_init(&(qedf->dbg_ctx), &qedf_debugfs_ops,
+ &qedf_dbg_fops);
+#endif
+
+ /* Start LL2 */
+ qed_ops->ll2->register_cb_ops(qedf->cdev, &qedf_ll2_cb_ops, qedf);
+ rc = qed_ops->ll2->start(qedf->cdev, ¶ms);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not start Light L2.\n");
+ goto err7;
+ }
+ set_bit(QEDF_LL2_STARTED, &qedf->flags);
+
+ /* hw will be insterting vlan tag*/
+ qedf->vlan_hw_insert = 1;
+ qedf->vlan_id = 0;
+
+ /*
+ * No need to setup fcoe_ctlr or fc_lport objects during recovery since
+ * they were not reaped during the unload process.
+ */
+ if (mode != QEDF_MODE_RECOVERY) {
+ /* Setup imbedded fcoe controller */
+ qedf_fcoe_ctlr_setup(qedf);
+
+ /* Setup lport */
+ rc = qedf_lport_setup(qedf);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "qedf_lport_setup failed.\n");
+ goto err7;
+ }
+ }
+
+ sprintf(host_buf, "qedf_%u_timer", qedf->lport->host->host_no);
+ qedf->timer_work_queue =
+ create_singlethread_workqueue(host_buf);
+ if (!qedf->timer_work_queue) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to start timer "
+ "workqueue.\n");
+ goto err7;
+ }
+
+ /* DPC workqueue is not reaped during recovery unload */
+ if (mode != QEDF_MODE_RECOVERY) {
+ sprintf(host_buf, "qedf_%u_dpc",
+ qedf->lport->host->host_no);
+ qedf->dpc_wq = create_singlethread_workqueue(host_buf);
+ }
+
+ /*
+ * GRC dump and sysfs parameters are not reaped during the recovery
+ * unload process.
+ */
+ if (mode != QEDF_MODE_RECOVERY) {
+ qedf->grcdump_size = qed_ops->common->dbg_grc_size(qedf->cdev);
+ if (qedf->grcdump_size) {
+ rc = qedf_alloc_grc_dump_buf(&qedf->grcdump,
+ qedf->grcdump_size);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "GRC Dump buffer alloc failed.\n");
+ qedf->grcdump = NULL;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "grcdump: addr=%p, size=%u.\n",
+ qedf->grcdump, qedf->grcdump_size);
+ }
+ qedf_create_sysfs_ctx_attr(qedf);
+
+ /* Initialize I/O tracing for this adapter */
+ spin_lock_init(&qedf->io_trace_lock);
+ qedf->io_trace_idx = 0;
+ }
+
+ init_completion(&qedf->flogi_compl);
+
+ memset(&link_params, 0, sizeof(struct qed_link_params));
+ link_params.link_up = true;
+ status = qed_ops->common->set_link(qedf->cdev, &link_params);
+ if (status)
+ QEDF_WARN(&(qedf->dbg_ctx), "set_link failed.\n");
+
+ /* Start/restart discovery */
+ if (mode == QEDF_MODE_RECOVERY)
+ fcoe_ctlr_link_up(&qedf->ctlr);
+ else
+ fc_fabric_login(lport);
+
+ /* All good */
+ return 0;
+
+err7:
+ if (qedf->ll2_recv_wq)
+ destroy_workqueue(qedf->ll2_recv_wq);
+ fc_remove_host(qedf->lport->host);
+ scsi_remove_host(qedf->lport->host);
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_host_exit(&(qedf->dbg_ctx));
+#endif
+err6:
+ qedf_cmd_mgr_free(qedf->cmd_mgr);
+err5:
+ qed_ops->stop(qedf->cdev);
+err4:
+ qedf_free_fcoe_pf_param(qedf);
+ qedf_sync_free_irqs(qedf);
+err3:
+ qed_ops->common->slowpath_stop(qedf->cdev);
+err2:
+ qed_ops->common->remove(qedf->cdev);
+err1:
+ scsi_host_put(lport->host);
+err0:
+ return rc;
+}
+
+static int qedf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ return __qedf_probe(pdev, QEDF_MODE_NORMAL);
+}
+
+static void __qedf_remove(struct pci_dev *pdev, int mode)
+{
+ struct qedf_ctx *qedf;
+
+ if (!pdev) {
+ QEDF_ERR(NULL, "pdev is NULL.\n");
+ return;
+ }
+
+ qedf = pci_get_drvdata(pdev);
+
+ /*
+ * Prevent race where we're in board disable work and then try to
+ * rmmod the module.
+ */
+ if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
+ QEDF_ERR(&qedf->dbg_ctx, "Already removing PCI function.\n");
+ return;
+ }
+
+ if (mode != QEDF_MODE_RECOVERY)
+ set_bit(QEDF_UNLOADING, &qedf->flags);
+
+ /* Logoff the fabric to upload all connections */
+ if (mode == QEDF_MODE_RECOVERY)
+ fcoe_ctlr_link_down(&qedf->ctlr);
+ else
+ fc_fabric_logoff(qedf->lport);
+ qedf_wait_for_upload(qedf);
+
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_host_exit(&(qedf->dbg_ctx));
+#endif
+
+ /* Stop any link update handling */
+ cancel_delayed_work_sync(&qedf->link_update);
+ destroy_workqueue(qedf->link_update_wq);
+ qedf->link_update_wq = NULL;
+
+ if (qedf->timer_work_queue)
+ destroy_workqueue(qedf->timer_work_queue);
+
+ /* Stop Light L2 */
+ clear_bit(QEDF_LL2_STARTED, &qedf->flags);
+ qed_ops->ll2->stop(qedf->cdev);
+ if (qedf->ll2_recv_wq)
+ destroy_workqueue(qedf->ll2_recv_wq);
+
+ /* Stop fastpath */
+ qedf_sync_free_irqs(qedf);
+ qedf_destroy_sb(qedf);
+
+ /*
+ * During recovery don't destroy OS constructs that represent the
+ * physical port.
+ */
+ if (mode != QEDF_MODE_RECOVERY) {
+ qedf_free_grc_dump_buf(&qedf->grcdump);
+ qedf_remove_sysfs_ctx_attr(qedf);
+
+ /* Remove all SCSI/libfc/libfcoe structures */
+ fcoe_ctlr_destroy(&qedf->ctlr);
+ fc_lport_destroy(qedf->lport);
+ fc_remove_host(qedf->lport->host);
+ scsi_remove_host(qedf->lport->host);
+ }
+
+ qedf_cmd_mgr_free(qedf->cmd_mgr);
+
+ if (mode != QEDF_MODE_RECOVERY) {
+ fc_exch_mgr_free(qedf->lport);
+ fc_lport_free_stats(qedf->lport);
+
+ /* Wait for all vports to be reaped */
+ qedf_wait_for_vport_destroy(qedf);
+ }
+
+ /*
+ * Now that all connections have been uploaded we can stop the
+ * rest of the qed operations
+ */
+ qed_ops->stop(qedf->cdev);
+
+ if (mode != QEDF_MODE_RECOVERY) {
+ if (qedf->dpc_wq) {
+ /* Stop general DPC handling */
+ destroy_workqueue(qedf->dpc_wq);
+ qedf->dpc_wq = NULL;
+ }
+ }
+
+ /* Final shutdown for the board */
+ qedf_free_fcoe_pf_param(qedf);
+ if (mode != QEDF_MODE_RECOVERY) {
+ qed_ops->common->set_power_state(qedf->cdev, PCI_D0);
+ pci_set_drvdata(pdev, NULL);
+ }
+ qed_ops->common->slowpath_stop(qedf->cdev);
+ qed_ops->common->remove(qedf->cdev);
+
+ mempool_destroy(qedf->io_mempool);
+
+ /* Only reap the Scsi_host on a real removal */
+ if (mode != QEDF_MODE_RECOVERY)
+ scsi_host_put(qedf->lport->host);
+}
+
+static void qedf_remove(struct pci_dev *pdev)
+{
+ /* Check to make sure this function wasn't already disabled */
+ if (!atomic_read(&pdev->enable_cnt))
+ return;
+
+ __qedf_remove(pdev, QEDF_MODE_NORMAL);
+}
+
+/*
+ * Module Init/Remove
+ */
+
+static int __init qedf_init(void)
+{
+ int ret;
+
+ /* If debug=1 passed, set the default log mask */
+ if (qedf_debug == QEDF_LOG_DEFAULT)
+ qedf_debug = QEDF_DEFAULT_LOG_MASK;
+
+ /* Print driver banner */
+ QEDF_INFO(NULL, QEDF_LOG_INFO, "%s v%s.\n", QEDF_DESCR,
+ QEDF_VERSION);
+
+ /* Create kmem_cache for qedf_io_work structs */
+ qedf_io_work_cache = kmem_cache_create("qedf_io_work_cache",
+ sizeof(struct qedf_io_work), 0, SLAB_HWCACHE_ALIGN, NULL);
+ if (qedf_io_work_cache == NULL) {
+ QEDF_ERR(NULL, "qedf_io_work_cache is NULL.\n");
+ goto err1;
+ }
+ QEDF_INFO(NULL, QEDF_LOG_DISC, "qedf_io_work_cache=%p.\n",
+ qedf_io_work_cache);
+
+ qed_ops = qed_get_fcoe_ops();
+ if (!qed_ops) {
+ QEDF_ERR(NULL, "Failed to get qed fcoe operations\n");
+ goto err1;
+ }
+
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_init("qedf");
+#endif
+
+ qedf_fc_transport_template =
+ fc_attach_transport(&qedf_fc_transport_fn);
+ if (!qedf_fc_transport_template) {
+ QEDF_ERR(NULL, "Could not register with FC transport\n");
+ goto err2;
+ }
+
+ qedf_fc_vport_transport_template =
+ fc_attach_transport(&qedf_fc_vport_transport_fn);
+ if (!qedf_fc_vport_transport_template) {
+ QEDF_ERR(NULL, "Could not register vport template with FC "
+ "transport\n");
+ goto err3;
+ }
+
+ qedf_io_wq = create_workqueue("qedf_io_wq");
+ if (!qedf_io_wq) {
+ QEDF_ERR(NULL, "Could not create qedf_io_wq.\n");
+ goto err4;
+ }
+
+ qedf_cb_ops.get_login_failures = qedf_get_login_failures;
+
+ ret = pci_register_driver(&qedf_pci_driver);
+ if (ret) {
+ QEDF_ERR(NULL, "Failed to register driver\n");
+ goto err5;
+ }
+
+ return 0;
+
+err5:
+ destroy_workqueue(qedf_io_wq);
+err4:
+ fc_release_transport(qedf_fc_vport_transport_template);
+err3:
+ fc_release_transport(qedf_fc_transport_template);
+err2:
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_exit();
+#endif
+ qed_put_fcoe_ops();
+err1:
+ return -EINVAL;
+}
+
+static void __exit qedf_cleanup(void)
+{
+ pci_unregister_driver(&qedf_pci_driver);
+
+ destroy_workqueue(qedf_io_wq);
+
+ fc_release_transport(qedf_fc_vport_transport_template);
+ fc_release_transport(qedf_fc_transport_template);
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_exit();
+#endif
+ qed_put_fcoe_ops();
+
+ kmem_cache_destroy(qedf_io_work_cache);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("QLogic QEDF 25/40/50/100Gb FCoE Driver");
+MODULE_AUTHOR("QLogic Corporation");
+MODULE_VERSION(QEDF_VERSION);
+module_init(qedf_init);
+module_exit(qedf_cleanup);
diff --git a/drivers/scsi/qedf/qedf_version.h b/drivers/scsi/qedf/qedf_version.h
new file mode 100644
index 0000000..4ae5f53
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_version.h
@@ -0,0 +1,15 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#define QEDF_VERSION "8.10.7.0"
+#define QEDF_DRIVER_MAJOR_VER 8
+#define QEDF_DRIVER_MINOR_VER 10
+#define QEDF_DRIVER_REV_VER 7
+#define QEDF_DRIVER_ENG_VER 0
+
--
1.8.5.6
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH V2 2/2] qedf: Add QLogic FastLinQ offload FCoE driver framework.
@ 2017-01-25 20:33 ` Dupuis, Chad
0 siblings, 0 replies; 15+ messages in thread
From: Dupuis, Chad @ 2017-01-25 20:33 UTC (permalink / raw)
To: martin.petersen
Cc: linux-scsi, fcoe-devel, netdev, yuval.mintz, QLogic-Storage-Upstream
From: "Dupuis, Chad" <chad.dupuis@cavium.com>
The QLogic FastLinQ Driver for FCoE (qedf) is the FCoE specific module for 41000
Series Converged Network Adapters by QLogic. This patch consists of following
changes:
- MAINTAINERS Makefile and Kconfig changes for qedf
- PCI driver registration
- libfc/fcoe host level initialization
- SCSI host template initialization and callbacks
- Debugfs and log level infrastructure
- Link handling
- Firmware interface structures
- QED core module initialization
- Light L2 interface callbacks
- I/O request initialization
- Firmware I/O completion handling
- Firmware ELS request/response handling
- FIP request/response handled by the driver itself
Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@cavium.com>
Signed-off-by: Arun Easi <arun.easi@cavium.com>
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
---
MAINTAINERS | 6 +
drivers/scsi/Kconfig | 1 +
drivers/scsi/Makefile | 1 +
drivers/scsi/qedf/Kconfig | 11 +
drivers/scsi/qedf/Makefile | 5 +
drivers/scsi/qedf/qedf.h | 548 +++++++
drivers/scsi/qedf/qedf_attr.c | 165 ++
drivers/scsi/qedf/qedf_dbg.c | 195 +++
drivers/scsi/qedf/qedf_dbg.h | 154 ++
drivers/scsi/qedf/qedf_debugfs.c | 460 ++++++
drivers/scsi/qedf/qedf_els.c | 983 +++++++++++
drivers/scsi/qedf/qedf_fip.c | 269 +++
drivers/scsi/qedf/qedf_hsi.h | 427 +++++
drivers/scsi/qedf/qedf_io.c | 2280 ++++++++++++++++++++++++++
drivers/scsi/qedf/qedf_main.c | 3335 ++++++++++++++++++++++++++++++++++++++
drivers/scsi/qedf/qedf_version.h | 15 +
16 files changed, 8855 insertions(+)
create mode 100644 drivers/scsi/qedf/Kconfig
create mode 100644 drivers/scsi/qedf/Makefile
create mode 100644 drivers/scsi/qedf/qedf.h
create mode 100644 drivers/scsi/qedf/qedf_attr.c
create mode 100644 drivers/scsi/qedf/qedf_dbg.c
create mode 100644 drivers/scsi/qedf/qedf_dbg.h
create mode 100644 drivers/scsi/qedf/qedf_debugfs.c
create mode 100644 drivers/scsi/qedf/qedf_els.c
create mode 100644 drivers/scsi/qedf/qedf_fip.c
create mode 100644 drivers/scsi/qedf/qedf_hsi.h
create mode 100644 drivers/scsi/qedf/qedf_io.c
create mode 100644 drivers/scsi/qedf/qedf_main.c
create mode 100644 drivers/scsi/qedf/qedf_version.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 8eeee96..90f7238 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10158,6 +10158,12 @@ L: linux-scsi@vger.kernel.org
S: Supported
F: drivers/scsi/qedi/
+QLOGIC QL41xxx FCOE DRIVER
+M: QLogic-Storage-Upstream@cavium.com
+L: linux-scsi@vger.kernel.org
+S: Supported
+F: drivers/scsi/qedf/
+
QNX4 FILESYSTEM
M: Anders Larsen <al@alarsen.net>
W: http://www.alarsen.net/linux/qnx4fs/
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index a4f6b0d..e9fce78b 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -1234,6 +1234,7 @@ config SCSI_QLOGICPTI
source "drivers/scsi/qla2xxx/Kconfig"
source "drivers/scsi/qla4xxx/Kconfig"
source "drivers/scsi/qedi/Kconfig"
+source "drivers/scsi/qedf/Kconfig"
config SCSI_LPFC
tristate "Emulex LightPulse Fibre Channel Support"
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 736b774..fc28555 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -41,6 +41,7 @@ obj-$(CONFIG_FCOE) += fcoe/
obj-$(CONFIG_FCOE_FNIC) += fnic/
obj-$(CONFIG_SCSI_SNIC) += snic/
obj-$(CONFIG_SCSI_BNX2X_FCOE) += libfc/ fcoe/ bnx2fc/
+obj-$(CONFIG_QEDF) += qedf/
obj-$(CONFIG_ISCSI_TCP) += libiscsi.o libiscsi_tcp.o iscsi_tcp.o
obj-$(CONFIG_INFINIBAND_ISER) += libiscsi.o
obj-$(CONFIG_ISCSI_BOOT_SYSFS) += iscsi_boot_sysfs.o
diff --git a/drivers/scsi/qedf/Kconfig b/drivers/scsi/qedf/Kconfig
new file mode 100644
index 0000000..943f5ee
--- /dev/null
+++ b/drivers/scsi/qedf/Kconfig
@@ -0,0 +1,11 @@
+config QEDF
+ tristate "QLogic QEDF 25/40/100Gb FCoE Initiator Driver Support"
+ depends on PCI && SCSI
+ depends on QED
+ depends on LIBFC
+ depends on LIBFCOE
+ select QED_LL2
+ select QED_FCOE
+ ---help---
+ This driver supports FCoE offload for the QLogic FastLinQ
+ 41000 Series Converged Network Adapters.
diff --git a/drivers/scsi/qedf/Makefile b/drivers/scsi/qedf/Makefile
new file mode 100644
index 0000000..64e9f50
--- /dev/null
+++ b/drivers/scsi/qedf/Makefile
@@ -0,0 +1,5 @@
+obj-$(CONFIG_QEDF) := qedf.o
+qedf-y = qedf_dbg.o qedf_main.o qedf_io.o qedf_fip.o \
+ qedf_attr.o qedf_els.o
+
+qedf-$(CONFIG_DEBUG_FS) += qedf_debugfs.o
diff --git a/drivers/scsi/qedf/qedf.h b/drivers/scsi/qedf/qedf.h
new file mode 100644
index 0000000..f8d06de
--- /dev/null
+++ b/drivers/scsi/qedf/qedf.h
@@ -0,0 +1,548 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#ifndef _QEDFC_H_
+#define _QEDFC_H_
+
+#include <scsi/libfcoe.h>
+#include <scsi/libfc.h>
+#include <scsi/fc/fc_fip.h>
+#include <scsi/fc/fc_fc2.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/fc_encode.h>
+#include <linux/version.h>
+
+
+/* qedf_hsi.h needs to before included any qed includes */
+#include "qedf_hsi.h"
+
+#include <linux/qed/qed_if.h>
+#include <linux/qed/qed_fcoe_if.h>
+#include <linux/qed/qed_ll2_if.h>
+#include "qedf_version.h"
+#include "qedf_dbg.h"
+
+/* Helpers to extract upper and lower 32-bits of pointer */
+#define U64_HI(val) ((u32)(((u64)(val)) >> 32))
+#define U64_LO(val) ((u32)(((u64)(val)) & 0xffffffff))
+
+#define QEDF_DESCR "QLogic FCoE Offload Driver"
+#define QEDF_MODULE_NAME "qedf"
+
+#define QEDF_MIN_XID 0
+#define QEDF_MAX_SCSI_XID (NUM_TASKS_PER_CONNECTION - 1)
+#define QEDF_MAX_ELS_XID 4095
+#define QEDF_FLOGI_RETRY_CNT 3
+#define QEDF_RPORT_RETRY_CNT 255
+#define QEDF_MAX_SESSIONS 1024
+#define QEDF_MAX_PAYLOAD 2048
+#define QEDF_MAX_BDS_PER_CMD 256
+#define QEDF_MAX_BD_LEN 0xffff
+#define QEDF_BD_SPLIT_SZ 0x1000
+#define QEDF_PAGE_SIZE 4096
+#define QED_HW_DMA_BOUNDARY 0xfff
+#define QEDF_MAX_SGLEN_FOR_CACHESGL ((1U << 16) - 1)
+#define QEDF_MFS (QEDF_MAX_PAYLOAD + \
+ sizeof(struct fc_frame_header))
+#define QEDF_MAX_NPIV 64
+#define QEDF_TM_TIMEOUT 10
+#define QEDF_ABORT_TIMEOUT 10
+#define QEDF_CLEANUP_TIMEOUT 10
+#define QEDF_MAX_CDB_LEN 16
+
+#define UPSTREAM_REMOVE 1
+#define UPSTREAM_KEEP 1
+
+struct qedf_mp_req {
+ uint8_t tm_flags;
+
+ uint32_t req_len;
+ void *req_buf;
+ dma_addr_t req_buf_dma;
+ struct fcoe_sge *mp_req_bd;
+ dma_addr_t mp_req_bd_dma;
+ struct fc_frame_header req_fc_hdr;
+
+ uint32_t resp_len;
+ void *resp_buf;
+ dma_addr_t resp_buf_dma;
+ struct fcoe_sge *mp_resp_bd;
+ dma_addr_t mp_resp_bd_dma;
+ struct fc_frame_header resp_fc_hdr;
+};
+
+struct qedf_els_cb_arg {
+ struct qedf_ioreq *aborted_io_req;
+ struct qedf_ioreq *io_req;
+ u8 op; /* Used to keep track of ELS op */
+ uint16_t l2_oxid;
+ u32 offset; /* Used for sequence cleanup */
+ u8 r_ctl; /* Used for sequence cleanup */
+};
+
+enum qedf_ioreq_event {
+ QEDF_IOREQ_EV_ABORT_SUCCESS,
+ QEDF_IOREQ_EV_ABORT_FAILED,
+ QEDF_IOREQ_EV_SEND_RRQ,
+ QEDF_IOREQ_EV_ELS_TMO,
+ QEDF_IOREQ_EV_ELS_ERR_DETECT,
+ QEDF_IOREQ_EV_ELS_FLUSH,
+ QEDF_IOREQ_EV_CLEANUP_SUCCESS,
+ QEDF_IOREQ_EV_CLEANUP_FAILED,
+};
+
+#define FC_GOOD 0
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER (0x1<<2)
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER (0x1<<3)
+#define CMD_SCSI_STATUS(Cmnd) ((Cmnd)->SCp.Status)
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID (0x1<<0)
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID (0x1<<1)
+struct qedf_ioreq {
+ struct list_head link;
+ uint16_t xid;
+ struct scsi_cmnd *sc_cmd;
+ bool use_slowpath; /* Use slow SGL for this I/O */
+#define QEDF_SCSI_CMD 1
+#define QEDF_TASK_MGMT_CMD 2
+#define QEDF_ABTS 3
+#define QEDF_ELS 4
+#define QEDF_CLEANUP 5
+#define QEDF_SEQ_CLEANUP 6
+ u8 cmd_type;
+#define QEDF_CMD_OUTSTANDING 0x0
+#define QEDF_CMD_IN_ABORT 0x1
+#define QEDF_CMD_IN_CLEANUP 0x2
+#define QEDF_CMD_SRR_SENT 0x3
+ u8 io_req_flags;
+ struct qedf_rport *fcport;
+ unsigned long flags;
+ enum qedf_ioreq_event event;
+ size_t data_xfer_len;
+ struct kref refcount;
+ struct qedf_cmd_mgr *cmd_mgr;
+ struct io_bdt *bd_tbl;
+ struct delayed_work timeout_work;
+ struct completion tm_done;
+ struct completion abts_done;
+ struct fcoe_task_context *task;
+ int idx;
+/*
+ * Need to allocate enough room for both sense data and FCP response data
+ * which has a max length of 8 bytes according to spec.
+ */
+#define QEDF_SCSI_SENSE_BUFFERSIZE (SCSI_SENSE_BUFFERSIZE + 8)
+ uint8_t *sense_buffer;
+ dma_addr_t sense_buffer_dma;
+ u32 fcp_resid;
+ u32 fcp_rsp_len;
+ u32 fcp_sns_len;
+ u8 cdb_status;
+ u8 fcp_status;
+ u8 fcp_rsp_code;
+ u8 scsi_comp_flags;
+#define QEDF_MAX_REUSE 0xfff
+ u16 reuse_count;
+ struct qedf_mp_req mp_req;
+ void (*cb_func)(struct qedf_els_cb_arg *cb_arg);
+ struct qedf_els_cb_arg *cb_arg;
+ int fp_idx;
+ unsigned int cpu;
+ unsigned int int_cpu;
+#define QEDF_IOREQ_SLOW_SGE 0
+#define QEDF_IOREQ_SINGLE_SGE 1
+#define QEDF_IOREQ_FAST_SGE 2
+ u8 sge_type;
+ struct delayed_work rrq_work;
+
+ /* Used for sequence level recovery; i.e. REC/SRR */
+ uint32_t rx_buf_off;
+ uint32_t tx_buf_off;
+ uint32_t rx_id;
+ uint32_t task_retry_identifier;
+
+ /*
+ * Used to tell if we need to return a SCSI command
+ * during some form of error processing.
+ */
+ bool return_scsi_cmd_on_abts;
+};
+
+extern struct workqueue_struct *qedf_io_wq;
+
+struct qedf_rport {
+ spinlock_t rport_lock;
+#define QEDF_RPORT_SESSION_READY 1
+#define QEDF_RPORT_UPLOADING_CONNECTION 2
+ unsigned long flags;
+ unsigned long retry_delay_timestamp;
+ struct fc_rport *rport;
+ struct fc_rport_priv *rdata;
+ struct qedf_ctx *qedf;
+ u32 handle; /* Handle from qed */
+ u32 fw_cid; /* fw_cid from qed */
+ void __iomem *p_doorbell;
+ /* Send queue management */
+ atomic_t free_sqes;
+ atomic_t num_active_ios;
+ struct fcoe_wqe *sq;
+ dma_addr_t sq_dma;
+ u16 sq_prod_idx;
+ u16 fw_sq_prod_idx;
+ u16 sq_con_idx;
+ u32 sq_mem_size;
+ void *sq_pbl;
+ dma_addr_t sq_pbl_dma;
+ u32 sq_pbl_size;
+ u32 sid;
+#define QEDF_RPORT_TYPE_DISK 1
+#define QEDF_RPORT_TYPE_TAPE 2
+ uint dev_type; /* Disk or tape */
+ struct list_head peers;
+};
+
+/* Used to contain LL2 skb's in ll2_skb_list */
+struct qedf_skb_work {
+ struct work_struct work;
+ struct sk_buff *skb;
+ struct qedf_ctx *qedf;
+};
+
+struct qedf_fastpath {
+#define QEDF_SB_ID_NULL 0xffff
+ u16 sb_id;
+ struct qed_sb_info *sb_info;
+ struct qedf_ctx *qedf;
+ /* Keep track of number of completions on this fastpath */
+ unsigned long completions;
+ uint32_t cq_num_entries;
+};
+
+/* Used to pass fastpath information needed to process CQEs */
+struct qedf_io_work {
+ struct work_struct work;
+ struct fcoe_cqe cqe;
+ struct qedf_ctx *qedf;
+ struct fc_frame *fp;
+};
+
+struct qedf_glbl_q_params {
+ u64 hw_p_cq; /* Completion queue PBL */
+ u64 hw_p_rq; /* Request queue PBL */
+ u64 hw_p_cmdq; /* Command queue PBL */
+};
+
+struct global_queue {
+ struct fcoe_cqe *cq;
+ dma_addr_t cq_dma;
+ u32 cq_mem_size;
+ u32 cq_cons_idx; /* Completion queue consumer index */
+ u32 cq_prod_idx;
+
+ void *cq_pbl;
+ dma_addr_t cq_pbl_dma;
+ u32 cq_pbl_size;
+};
+
+/* I/O tracing entry */
+#define QEDF_IO_TRACE_SIZE 2048
+struct qedf_io_log {
+#define QEDF_IO_TRACE_REQ 0
+#define QEDF_IO_TRACE_RSP 1
+ uint8_t direction;
+ uint16_t task_id;
+ uint32_t port_id; /* Remote port fabric ID */
+ int lun;
+ char op; /* SCSI CDB */
+ uint8_t lba[4];
+ unsigned int bufflen; /* SCSI buffer length */
+ unsigned int sg_count; /* Number of SG elements */
+ int result; /* Result passed back to mid-layer */
+ unsigned long jiffies; /* Time stamp when I/O logged */
+ int refcount; /* Reference count for task id */
+ unsigned int req_cpu; /* CPU that the task is queued on */
+ unsigned int int_cpu; /* Interrupt CPU that the task is received on */
+ unsigned int rsp_cpu; /* CPU that task is returned on */
+ u8 sge_type; /* Did we take the slow, single or fast SGE path */
+};
+
+/* Number of entries in BDQ */
+#define QEDF_BDQ_SIZE 256
+#define QEDF_BDQ_BUF_SIZE 2072
+
+/* DMA coherent buffers for BDQ */
+struct qedf_bdq_buf {
+ void *buf_addr;
+ dma_addr_t buf_dma;
+};
+
+/* Main adapter struct */
+struct qedf_ctx {
+ struct qedf_dbg_ctx dbg_ctx;
+ struct fcoe_ctlr ctlr;
+ struct fc_lport *lport;
+ u8 data_src_addr[ETH_ALEN];
+#define QEDF_LINK_DOWN 0
+#define QEDF_LINK_UP 1
+ atomic_t link_state;
+#define QEDF_DCBX_PENDING 0
+#define QEDF_DCBX_DONE 1
+ atomic_t dcbx;
+ uint16_t max_scsi_xid;
+ uint16_t max_els_xid;
+#define QEDF_NULL_VLAN_ID -1
+#define QEDF_FALLBACK_VLAN 1002
+#define QEDF_DEFAULT_PRIO 3
+ int vlan_id;
+ uint vlan_hw_insert:1;
+ struct qed_dev *cdev;
+ struct qed_dev_fcoe_info dev_info;
+ struct qed_int_info int_info;
+ uint16_t last_command;
+ spinlock_t hba_lock;
+ struct pci_dev *pdev;
+ u64 wwnn;
+ u64 wwpn;
+ u8 __aligned(16) mac[ETH_ALEN];
+ struct list_head fcports;
+ atomic_t num_offloads;
+ unsigned int curr_conn_id;
+ struct workqueue_struct *ll2_recv_wq;
+ struct workqueue_struct *link_update_wq;
+ struct delayed_work link_update;
+ struct delayed_work link_recovery;
+ struct completion flogi_compl;
+ struct completion fipvlan_compl;
+
+ /*
+ * Used to tell if we're in the window where we are waiting for
+ * the link to come back up before informting fcoe that the link is
+ * done.
+ */
+ atomic_t link_down_tmo_valid;
+#define QEDF_TIMER_INTERVAL (1 * HZ)
+ struct timer_list timer; /* One second book keeping timer */
+#define QEDF_DRAIN_ACTIVE 1
+#define QEDF_LL2_STARTED 2
+#define QEDF_UNLOADING 3
+#define QEDF_GRCDUMP_CAPTURE 4
+#define QEDF_IN_RECOVERY 5
+ unsigned long flags; /* Miscellaneous state flags */
+ int fipvlan_retries;
+ u8 num_queues;
+ struct global_queue **global_queues;
+ /* Pointer to array of queue structures */
+ struct qedf_glbl_q_params *p_cpuq;
+ /* Physical address of array of queue structures */
+ dma_addr_t hw_p_cpuq;
+
+ struct qedf_bdq_buf bdq[QEDF_BDQ_SIZE];
+ void *bdq_pbl;
+ dma_addr_t bdq_pbl_dma;
+ size_t bdq_pbl_mem_size;
+ void *bdq_pbl_list;
+ dma_addr_t bdq_pbl_list_dma;
+ u8 bdq_pbl_list_num_entries;
+ void __iomem *bdq_primary_prod;
+ void __iomem *bdq_secondary_prod;
+ uint16_t bdq_prod_idx;
+
+ /* Structure for holding all the fastpath for this qedf_ctx */
+ struct qedf_fastpath *fp_array;
+ struct qed_fcoe_tid tasks;
+ struct qedf_cmd_mgr *cmd_mgr;
+ /* Holds the PF parameters we pass to qed to start he FCoE function */
+ struct qed_pf_params pf_params;
+ /* Used to time middle path ELS and TM commands */
+ struct workqueue_struct *timer_work_queue;
+
+#define QEDF_IO_WORK_MIN 64
+ mempool_t *io_mempool;
+ struct workqueue_struct *dpc_wq;
+
+ u32 slow_sge_ios;
+ u32 fast_sge_ios;
+ u32 single_sge_ios;
+
+ uint8_t *grcdump;
+ uint32_t grcdump_size;
+
+ struct qedf_io_log io_trace_buf[QEDF_IO_TRACE_SIZE];
+ spinlock_t io_trace_lock;
+ uint16_t io_trace_idx;
+
+ bool stop_io_on_error;
+
+ u32 flogi_cnt;
+ u32 flogi_failed;
+
+ /* Used for fc statistics */
+ u64 input_requests;
+ u64 output_requests;
+ u64 control_requests;
+ u64 packet_aborts;
+ u64 alloc_failures;
+};
+
+/*
+ * 4 regs size $$KEEP_ENDIANNESS$$
+ */
+
+struct io_bdt {
+ struct qedf_ioreq *io_req;
+ struct fcoe_sge *bd_tbl;
+ dma_addr_t bd_tbl_dma;
+ u16 bd_valid;
+};
+
+struct qedf_cmd_mgr {
+ struct qedf_ctx *qedf;
+ u16 idx;
+ struct io_bdt **io_bdt_pool;
+#define FCOE_PARAMS_NUM_TASKS 4096
+ struct qedf_ioreq cmds[FCOE_PARAMS_NUM_TASKS];
+ spinlock_t lock;
+ atomic_t free_list_cnt;
+};
+
+/* Stolen from qed_cxt_api.h and adapted for qed_fcoe_info
+ * Usage:
+ *
+ * void *ptr;
+ * ptr = qedf_get_task_mem(&qedf->tasks, 128);
+ */
+static inline void *qedf_get_task_mem(struct qed_fcoe_tid *info, u32 tid)
+{
+ return (void *)(info->blocks[tid / info->num_tids_per_block] +
+ (tid % info->num_tids_per_block) * info->size);
+}
+
+static inline void qedf_stop_all_io(struct qedf_ctx *qedf)
+{
+ set_bit(QEDF_UNLOADING, &qedf->flags);
+}
+
+/*
+ * Externs
+ */
+#define QEDF_DEFAULT_LOG_MASK 0x3CFB6
+extern const struct qed_fcoe_ops *qed_ops;
+extern uint qedf_dump_frames;
+extern uint qedf_io_tracing;
+extern uint qedf_stop_io_on_error;
+extern uint qedf_link_down_tmo;
+#define QEDF_RETRY_DELAY_MAX 20 /* 2 seconds */
+extern bool qedf_retry_delay;
+extern uint qedf_debug;
+
+extern struct qedf_cmd_mgr *qedf_cmd_mgr_alloc(struct qedf_ctx *qedf);
+extern void qedf_cmd_mgr_free(struct qedf_cmd_mgr *cmgr);
+extern int qedf_queuecommand(struct Scsi_Host *host,
+ struct scsi_cmnd *sc_cmd);
+extern void qedf_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb);
+extern void qedf_update_src_mac(struct fc_lport *lport, u8 *addr);
+extern u8 *qedf_get_src_mac(struct fc_lport *lport);
+extern void qedf_fip_recv(struct qedf_ctx *qedf, struct sk_buff *skb);
+extern void qedf_fcoe_send_vlan_req(struct qedf_ctx *qedf);
+extern void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req);
+extern void qedf_process_warning_compl(struct qedf_ctx *qedf,
+ struct fcoe_cqe *cqe,struct qedf_ioreq *io_req);
+extern void qedf_process_error_detect(struct qedf_ctx *qedf,
+ struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
+extern void qedf_flush_active_ios(struct qedf_rport *fcport, int lun);
+extern void qedf_release_cmd(struct kref *ref);
+extern int qedf_initiate_abts(struct qedf_ioreq *io_req,
+ bool return_scsi_cmd_on_abts);
+extern void qedf_process_abts_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req);
+extern struct qedf_ioreq *qedf_alloc_cmd(struct qedf_rport *fcport,
+ u8 cmd_type);
+
+extern struct device_attribute *qedf_host_attrs[];
+extern void qedf_cmd_timer_set(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
+ unsigned int timer_msec);
+extern int qedf_init_mp_req(struct qedf_ioreq *io_req);
+extern void qedf_init_mp_task(struct qedf_ioreq *io_req,
+ struct fcoe_task_context *task_ctx);
+extern void qedf_add_to_sq(struct qedf_rport *fcport, u16 xid,
+ u32 ptu_invalidate, enum fcoe_task_type req_type, u32 offset);
+extern void qedf_ring_doorbell(struct qedf_rport *fcport);
+extern void qedf_process_els_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *els_req);
+extern int qedf_send_rrq(struct qedf_ioreq *aborted_io_req);
+extern int qedf_send_adisc(struct qedf_rport *fcport, struct fc_frame *fp);
+extern int qedf_initiate_cleanup(struct qedf_ioreq *io_req,
+ bool return_scsi_cmd_on_abts);
+extern void qedf_process_cleanup_compl(struct qedf_ctx *qedf,
+ struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
+extern int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags);
+extern void qedf_process_tmf_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req);
+extern void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe);
+extern void qedf_scsi_done(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
+ int result);
+extern void qedf_set_vlan_id(struct qedf_ctx *qedf, int vlan_id);
+extern void qedf_create_sysfs_ctx_attr(struct qedf_ctx *qedf);
+extern void qedf_remove_sysfs_ctx_attr(struct qedf_ctx *qedf);
+extern void qedf_capture_grc_dump(struct qedf_ctx *qedf);
+extern void qedf_wait_for_upload(struct qedf_ctx *qedf);
+extern void qedf_process_unsol_compl(struct qedf_ctx *qedf, uint16_t que_idx,
+ struct fcoe_cqe *cqe);
+extern void qedf_restart_rport(struct qedf_rport *fcport);
+extern int qedf_send_rec(struct qedf_ioreq *orig_io_req);
+extern int qedf_post_io_req(struct qedf_rport *fcport,
+ struct qedf_ioreq *io_req);
+extern void qedf_process_seq_cleanup_compl(struct qedf_ctx *qedf,
+ struct fcoe_cqe *cqe, struct qedf_ioreq *io_req);
+extern int qedf_send_flogi(struct qedf_ctx *qedf);
+extern void qedf_fp_io_handler(struct work_struct *work);
+
+#define FCOE_WORD_TO_BYTE 4
+#define QEDF_MAX_TASK_NUM 0xFFFF
+
+struct fip_vlan {
+ struct ethhdr eth;
+ struct fip_header fip;
+ struct {
+ struct fip_mac_desc mac;
+ struct fip_wwn_desc wwnn;
+ } desc;
+};
+
+/* SQ/CQ Sizes */
+#define GBL_RSVD_TASKS 16
+#define NUM_TASKS_PER_CONNECTION 1024
+#define NUM_RW_TASKS_PER_CONNECTION 512
+#define FCOE_PARAMS_CQ_NUM_ENTRIES FCOE_PARAMS_NUM_TASKS
+
+#define FCOE_PARAMS_CMDQ_NUM_ENTRIES FCOE_PARAMS_NUM_TASKS
+#define SQ_NUM_ENTRIES NUM_TASKS_PER_CONNECTION
+
+#define QEDF_FCOE_PARAMS_GL_RQ_PI 0
+#define QEDF_FCOE_PARAMS_GL_CMD_PI 1
+
+#define QEDF_READ (1 << 1)
+#define QEDF_WRITE (1 << 0)
+#define MAX_FIBRE_LUNS 0xffffffff
+
+#define QEDF_MAX_NUM_CQS 8
+
+/*
+ * PCI function probe defines
+ */
+/* Probe/remove called during normal PCI probe */
+#define QEDF_MODE_NORMAL 0
+/* Probe/remove called from qed error recovery */
+#define QEDF_MODE_RECOVERY 1
+
+#define SUPPORTED_25000baseKR_Full (1<<27)
+#define SUPPORTED_50000baseKR2_Full (1<<28)
+#define SUPPORTED_100000baseKR4_Full (1<<29)
+#define SUPPORTED_100000baseCR4_Full (1<<30)
+
+#endif
diff --git a/drivers/scsi/qedf/qedf_attr.c b/drivers/scsi/qedf/qedf_attr.c
new file mode 100644
index 0000000..4772061
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_attr.c
@@ -0,0 +1,165 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include "qedf.h"
+
+static ssize_t
+qedf_fcoe_mac_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct fc_lport *lport = shost_priv(class_to_shost(dev));
+ u32 port_id;
+ u8 lport_src_id[3];
+ u8 fcoe_mac[6];
+
+ port_id = fc_host_port_id(lport->host);
+ lport_src_id[2] = (port_id & 0x000000FF);
+ lport_src_id[1] = (port_id & 0x0000FF00) >> 8;
+ lport_src_id[0] = (port_id & 0x00FF0000) >> 16;
+ fc_fcoe_set_mac(fcoe_mac, lport_src_id);
+
+ return scnprintf(buf, PAGE_SIZE, "%pM\n", fcoe_mac);
+}
+
+static DEVICE_ATTR(fcoe_mac, S_IRUGO, qedf_fcoe_mac_show, NULL);
+
+struct device_attribute *qedf_host_attrs[] = {
+ &dev_attr_fcoe_mac,
+ NULL,
+};
+
+extern const struct qed_fcoe_ops *qed_ops;
+
+inline bool qedf_is_vport(struct qedf_ctx *qedf)
+{
+ return (!(qedf->lport->vport == NULL));
+}
+
+/* Get base qedf for physical port from vport */
+static struct qedf_ctx *qedf_get_base_qedf(struct qedf_ctx *qedf)
+{
+ struct fc_lport *lport;
+ struct fc_lport *base_lport;
+
+ if (!(qedf_is_vport(qedf)))
+ return NULL;
+
+ lport = qedf->lport;
+ base_lport = shost_priv(vport_to_shost(lport->vport));
+ return (struct qedf_ctx *)(lport_priv(base_lport));
+}
+
+void qedf_capture_grc_dump(struct qedf_ctx *qedf)
+{
+ struct qedf_ctx *base_qedf;
+
+ /* Make sure we use the base qedf to take the GRC dump */
+ if (qedf_is_vport(qedf))
+ base_qedf = qedf_get_base_qedf(qedf);
+ else
+ base_qedf = qedf;
+
+ if (test_bit(QEDF_GRCDUMP_CAPTURE, &base_qedf->flags)) {
+ QEDF_INFO(&(base_qedf->dbg_ctx), QEDF_LOG_INFO,
+ "GRC Dump already captured.\n");
+ return;
+ }
+
+
+ qedf_get_grc_dump(base_qedf->cdev, qed_ops->common,
+ &base_qedf->grcdump, &base_qedf->grcdump_size);
+ QEDF_ERR(&(base_qedf->dbg_ctx), "GRC Dump captured.\n");
+ set_bit(QEDF_GRCDUMP_CAPTURE, &base_qedf->flags);
+ qedf_uevent_emit(base_qedf->lport->host, QEDF_UEVENT_CODE_GRCDUMP,
+ NULL);
+}
+
+static ssize_t
+qedf_sysfs_read_grcdump(struct file *filep, struct kobject *kobj,
+ struct bin_attribute *ba, char *buf, loff_t off,
+ size_t count)
+{
+ ssize_t ret = 0;
+ struct fc_lport *lport = shost_priv(dev_to_shost(container_of(kobj,
+ struct device, kobj)));
+ struct qedf_ctx *qedf = lport_priv(lport);
+
+ if (test_bit(QEDF_GRCDUMP_CAPTURE, &qedf->flags)) {
+ ret = memory_read_from_buffer(buf, count, &off,
+ qedf->grcdump, qedf->grcdump_size);
+ } else {
+ QEDF_ERR(&(qedf->dbg_ctx), "GRC Dump not captured!\n");
+ }
+
+ return ret;
+}
+
+static ssize_t
+qedf_sysfs_write_grcdump(struct file *filep, struct kobject *kobj,
+ struct bin_attribute *ba, char *buf, loff_t off,
+ size_t count)
+{
+ struct fc_lport *lport = NULL;
+ struct qedf_ctx *qedf = NULL;
+ long reading;
+ int ret = 0;
+ char msg[40];
+
+ if (off != 0)
+ return ret;
+
+
+ lport = shost_priv(dev_to_shost(container_of(kobj,
+ struct device, kobj)));
+ qedf = lport_priv(lport);
+
+ buf[1] = 0;
+ ret = kstrtol(buf, 10, &reading);
+ if (ret) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Invalid input, err(%d)\n", ret);
+ return ret;
+ }
+
+ memset(msg, 0, sizeof(msg));
+ switch (reading) {
+ case 0:
+ memset(qedf->grcdump, 0, qedf->grcdump_size);
+ clear_bit(QEDF_GRCDUMP_CAPTURE, &qedf->flags);
+ break;
+ case 1:
+ qedf_capture_grc_dump(qedf);
+ break;
+ }
+
+ return count;
+}
+
+static struct bin_attribute sysfs_grcdump_attr = {
+ .attr = {
+ .name = "grcdump",
+ .mode = S_IRUSR | S_IWUSR,
+ },
+ .size = 0,
+ .read = qedf_sysfs_read_grcdump,
+ .write = qedf_sysfs_write_grcdump,
+};
+
+static struct sysfs_bin_attrs bin_file_entries[] = {
+ {"grcdump", &sysfs_grcdump_attr},
+ {NULL},
+};
+
+void qedf_create_sysfs_ctx_attr(struct qedf_ctx *qedf)
+{
+ qedf_create_sysfs_attr(qedf->lport->host, bin_file_entries);
+}
+
+void qedf_remove_sysfs_ctx_attr(struct qedf_ctx *qedf)
+{
+ qedf_remove_sysfs_attr(qedf->lport->host, bin_file_entries);
+}
diff --git a/drivers/scsi/qedf/qedf_dbg.c b/drivers/scsi/qedf/qedf_dbg.c
new file mode 100644
index 0000000..e023f5d
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_dbg.c
@@ -0,0 +1,195 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include "qedf_dbg.h"
+#include <linux/vmalloc.h>
+
+void
+qedf_dbg_err(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ const char *fmt, ...)
+{
+ va_list va;
+ struct va_format vaf;
+ char nfunc[32];
+
+ memset(nfunc, 0, sizeof(nfunc));
+ memcpy(nfunc, func, sizeof(nfunc) - 1);
+
+ va_start(va, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &va;
+
+ if (likely(qedf) && likely(qedf->pdev))
+ pr_err("[%s]:[%s:%d]:%d: %pV", dev_name(&(qedf->pdev->dev)),
+ nfunc, line, qedf->host_no, &vaf);
+ else
+ pr_err("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+
+ va_end(va);
+}
+
+void
+qedf_dbg_warn(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ const char *fmt, ...)
+{
+ va_list va;
+ struct va_format vaf;
+ char nfunc[32];
+
+ memset(nfunc, 0, sizeof(nfunc));
+ memcpy(nfunc, func, sizeof(nfunc) - 1);
+
+ va_start(va, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &va;
+
+ if (!(qedf_debug & QEDF_LOG_WARN))
+ goto ret;
+
+ if (likely(qedf) && likely(qedf->pdev))
+ pr_warn("[%s]:[%s:%d]:%d: %pV", dev_name(&(qedf->pdev->dev)),
+ nfunc, line, qedf->host_no, &vaf);
+ else
+ pr_warn("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+
+ret:
+ va_end(va);
+}
+
+void
+qedf_dbg_notice(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ const char *fmt, ...)
+{
+ va_list va;
+ struct va_format vaf;
+ char nfunc[32];
+
+ memset(nfunc, 0, sizeof(nfunc));
+ memcpy(nfunc, func, sizeof(nfunc) - 1);
+
+ va_start(va, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &va;
+
+ if (!(qedf_debug & QEDF_LOG_NOTICE))
+ goto ret;
+
+ if (likely(qedf) && likely(qedf->pdev))
+ pr_notice("[%s]:[%s:%d]:%d: %pV",
+ dev_name(&(qedf->pdev->dev)), nfunc, line,
+ qedf->host_no, &vaf);
+ else
+ pr_notice("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+
+ret:
+ va_end(va);
+}
+
+void
+qedf_dbg_info(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ u32 level, const char *fmt, ...)
+{
+ va_list va;
+ struct va_format vaf;
+ char nfunc[32];
+
+ memset(nfunc, 0, sizeof(nfunc));
+ memcpy(nfunc, func, sizeof(nfunc) - 1);
+
+ va_start(va, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &va;
+
+ if (!(qedf_debug & level))
+ goto ret;
+
+ if (likely(qedf) && likely(qedf->pdev))
+ pr_info("[%s]:[%s:%d]:%d: %pV", dev_name(&(qedf->pdev->dev)),
+ nfunc, line, qedf->host_no, &vaf);
+ else
+ pr_info("[0000:00:00.0]:[%s:%d]: %pV", nfunc, line, &vaf);
+
+ret:
+ va_end(va);
+}
+
+int
+qedf_alloc_grc_dump_buf(u8 **buf, uint32_t len)
+{
+ *buf = vmalloc(len);
+ if (!(*buf))
+ return -ENOMEM;
+
+ memset(*buf, 0, len);
+ return 0;
+}
+
+void
+qedf_free_grc_dump_buf(uint8_t **buf)
+{
+ vfree(*buf);
+ *buf = NULL;
+}
+
+int
+qedf_get_grc_dump(struct qed_dev *cdev, const struct qed_common_ops *common,
+ u8 **buf, uint32_t *grcsize)
+{
+ if (!*buf)
+ return -EINVAL;
+
+ return common->dbg_grc(cdev, *buf, grcsize);
+}
+
+void
+qedf_uevent_emit(struct Scsi_Host *shost, u32 code, char *msg)
+{
+ char event_string[40];
+ char *envp[] = {event_string, NULL};
+
+ memset(event_string, 0, sizeof(event_string));
+ switch (code) {
+ case QEDF_UEVENT_CODE_GRCDUMP:
+ if (msg)
+ strncpy(event_string, msg, strlen(msg));
+ else
+ sprintf(event_string, "GRCDUMP=%u", shost->host_no);
+ break;
+ default:
+ /* do nothing */
+ break;
+ }
+
+ kobject_uevent_env(&shost->shost_gendev.kobj, KOBJ_CHANGE, envp);
+}
+
+int
+qedf_create_sysfs_attr(struct Scsi_Host *shost, struct sysfs_bin_attrs *iter)
+{
+ int ret = 0;
+
+ for (; iter->name; iter++) {
+ ret = sysfs_create_bin_file(&shost->shost_gendev.kobj,
+ iter->attr);
+ if (ret)
+ pr_err("Unable to create sysfs %s attr, err(%d).\n",
+ iter->name, ret);
+ }
+ return ret;
+}
+
+void
+qedf_remove_sysfs_attr(struct Scsi_Host *shost, struct sysfs_bin_attrs *iter)
+{
+ for (; iter->name; iter++)
+ sysfs_remove_bin_file(&shost->shost_gendev.kobj, iter->attr);
+}
diff --git a/drivers/scsi/qedf/qedf_dbg.h b/drivers/scsi/qedf/qedf_dbg.h
new file mode 100644
index 0000000..23bd706
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_dbg.h
@@ -0,0 +1,154 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#ifndef _QEDF_DBG_H_
+#define _QEDF_DBG_H_
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/compiler.h>
+#include <linux/string.h>
+#include <linux/version.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <scsi/scsi_transport.h>
+#include <linux/fs.h>
+
+#include <linux/qed/common_hsi.h>
+#include <linux/qed/qed_if.h>
+
+extern uint qedf_debug;
+
+/* Debug print level definitions */
+#define QEDF_LOG_DEFAULT 0x1 /* Set default logging mask */
+#define QEDF_LOG_INFO 0x2 /*
+ * Informational logs,
+ * MAC address, WWPN, WWNN
+ */
+#define QEDF_LOG_DISC 0x4 /* Init, discovery, rport */
+#define QEDF_LOG_LL2 0x8 /* LL2, VLAN logs */
+#define QEDF_LOG_CONN 0x10 /* Connection setup, cleanup */
+#define QEDF_LOG_EVT 0x20 /* Events, link, mtu */
+#define QEDF_LOG_TIMER 0x40 /* Timer events */
+#define QEDF_LOG_MP_REQ 0x80 /* Middle Path (MP) logs */
+#define QEDF_LOG_SCSI_TM 0x100 /* SCSI Aborts, Task Mgmt */
+#define QEDF_LOG_UNSOL 0x200 /* unsolicited event logs */
+#define QEDF_LOG_IO 0x400 /* scsi cmd, completion */
+#define QEDF_LOG_MQ 0x800 /* Multi Queue logs */
+#define QEDF_LOG_BSG 0x1000 /* BSG logs */
+#define QEDF_LOG_DEBUGFS 0x2000 /* debugFS logs */
+#define QEDF_LOG_LPORT 0x4000 /* lport logs */
+#define QEDF_LOG_ELS 0x8000 /* ELS logs */
+#define QEDF_LOG_NPIV 0x10000 /* NPIV logs */
+#define QEDF_LOG_SESS 0x20000 /* Conection setup, cleanup */
+#define QEDF_LOG_TID 0x80000 /*
+ * FW TID context acquire
+ * free
+ */
+#define QEDF_TRACK_TID 0x100000 /*
+ * Track TID state. To be
+ * enabled only at module load
+ * and not run-time.
+ */
+#define QEDF_TRACK_CMD_LIST 0x300000 /*
+ * Track active cmd list nodes,
+ * done with reference to TID,
+ * hence TRACK_TID also enabled.
+ */
+#define QEDF_LOG_NOTICE 0x40000000 /* Notice logs */
+#define QEDF_LOG_WARN 0x80000000 /* Warning logs */
+
+/* Debug context structure */
+struct qedf_dbg_ctx {
+ unsigned int host_no;
+ struct pci_dev *pdev;
+#ifdef CONFIG_DEBUG_FS
+ struct dentry *bdf_dentry;
+#endif
+};
+
+#define QEDF_ERR(pdev, fmt, ...) \
+ qedf_dbg_err(pdev, __func__, __LINE__, fmt, ## __VA_ARGS__)
+#define QEDF_WARN(pdev, fmt, ...) \
+ qedf_dbg_warn(pdev, __func__, __LINE__, fmt, ## __VA_ARGS__)
+#define QEDF_NOTICE(pdev, fmt, ...) \
+ qedf_dbg_notice(pdev, __func__, __LINE__, fmt, ## __VA_ARGS__)
+#define QEDF_INFO(pdev, level, fmt, ...) \
+ qedf_dbg_info(pdev, __func__, __LINE__, level, fmt, \
+ ## __VA_ARGS__)
+
+extern void qedf_dbg_err(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ const char *fmt, ...);
+extern void qedf_dbg_warn(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ const char *, ...);
+extern void qedf_dbg_notice(struct qedf_dbg_ctx *qedf, const char *func,
+ u32 line, const char *, ...);
+extern void qedf_dbg_info(struct qedf_dbg_ctx *qedf, const char *func, u32 line,
+ u32 info, const char *fmt, ...);
+
+/* GRC Dump related defines */
+
+struct Scsi_Host;
+
+#define QEDF_UEVENT_CODE_GRCDUMP 0
+
+struct sysfs_bin_attrs {
+ char *name;
+ struct bin_attribute *attr;
+};
+
+extern int qedf_alloc_grc_dump_buf(uint8_t **buf, uint32_t len);
+extern void qedf_free_grc_dump_buf(uint8_t **buf);
+extern int qedf_get_grc_dump(struct qed_dev *cdev,
+ const struct qed_common_ops *common, uint8_t **buf,
+ uint32_t *grcsize);
+extern void qedf_uevent_emit(struct Scsi_Host *shost, u32 code, char *msg);
+extern int qedf_create_sysfs_attr(struct Scsi_Host *shost,
+ struct sysfs_bin_attrs *iter);
+extern void qedf_remove_sysfs_attr(struct Scsi_Host *shost,
+ struct sysfs_bin_attrs *iter);
+
+#ifdef CONFIG_DEBUG_FS
+/* DebugFS related code */
+struct qedf_list_of_funcs {
+ char *oper_str;
+ ssize_t (*oper_func)(struct qedf_dbg_ctx *qedf);
+};
+
+struct qedf_debugfs_ops {
+ char *name;
+ struct qedf_list_of_funcs *qedf_funcs;
+};
+
+#define qedf_dbg_fileops(drv, ops) \
+{ \
+ .owner = THIS_MODULE, \
+ .open = simple_open, \
+ .read = drv##_dbg_##ops##_cmd_read, \
+ .write = drv##_dbg_##ops##_cmd_write \
+}
+
+/* Used for debugfs sequential files */
+#define qedf_dbg_fileops_seq(drv, ops) \
+{ \
+ .owner = THIS_MODULE, \
+ .open = drv##_dbg_##ops##_open, \
+ .read = seq_read, \
+ .llseek = seq_lseek, \
+ .release = single_release, \
+}
+
+extern void qedf_dbg_host_init(struct qedf_dbg_ctx *qedf,
+ struct qedf_debugfs_ops *dops,
+ struct file_operations *fops);
+extern void qedf_dbg_host_exit(struct qedf_dbg_ctx *qedf);
+extern void qedf_dbg_init(char *drv_name);
+extern void qedf_dbg_exit(void);
+#endif /* CONFIG_DEBUG_FS */
+
+#endif /* _QEDF_DBG_H_ */
diff --git a/drivers/scsi/qedf/qedf_debugfs.c b/drivers/scsi/qedf/qedf_debugfs.c
new file mode 100644
index 0000000..e969bbe
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_debugfs.c
@@ -0,0 +1,460 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 QLogic Corporation
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#ifdef CONFIG_DEBUG_FS
+
+#include <linux/uaccess.h>
+#include <linux/debugfs.h>
+#include <linux/module.h>
+
+#include "qedf.h"
+#include "qedf_dbg.h"
+
+static struct dentry *qedf_dbg_root;
+
+/**
+ * qedf_dbg_host_init - setup the debugfs file for the pf
+ * @pf: the pf that is starting up
+ **/
+void
+qedf_dbg_host_init(struct qedf_dbg_ctx *qedf,
+ struct qedf_debugfs_ops *dops,
+ struct file_operations *fops)
+{
+ char host_dirname[32];
+ struct dentry *file_dentry = NULL;
+
+ QEDF_INFO(qedf, QEDF_LOG_DEBUGFS, "Creating debugfs host node\n");
+ /* create pf dir */
+ sprintf(host_dirname, "host%u", qedf->host_no);
+ qedf->bdf_dentry = debugfs_create_dir(host_dirname, qedf_dbg_root);
+ if (!qedf->bdf_dentry)
+ return;
+
+ /* create debugfs files */
+ while (dops) {
+ if (!(dops->name))
+ break;
+
+ file_dentry = debugfs_create_file(dops->name, 0600,
+ qedf->bdf_dentry, qedf,
+ fops);
+ if (!file_dentry) {
+ QEDF_INFO(qedf, QEDF_LOG_DEBUGFS,
+ "Debugfs entry %s creation failed\n",
+ dops->name);
+ debugfs_remove_recursive(qedf->bdf_dentry);
+ return;
+ }
+ dops++;
+ fops++;
+ }
+}
+
+/**
+ * qedf_dbg_host_exit - clear out the pf's debugfs entries
+ * @pf: the pf that is stopping
+ **/
+void
+qedf_dbg_host_exit(struct qedf_dbg_ctx *qedf)
+{
+ QEDF_INFO(qedf, QEDF_LOG_DEBUGFS, "Destroying debugfs host "
+ "entry\n");
+ /* remove debugfs entries of this PF */
+ debugfs_remove_recursive(qedf->bdf_dentry);
+ qedf->bdf_dentry = NULL;
+}
+
+/**
+ * qedf_dbg_init - start up debugfs for the driver
+ **/
+void
+qedf_dbg_init(char *drv_name)
+{
+ QEDF_INFO(NULL, QEDF_LOG_DEBUGFS, "Creating debugfs root node\n");
+
+ /* create qed dir in root of debugfs. NULL means debugfs root */
+ qedf_dbg_root = debugfs_create_dir(drv_name, NULL);
+ if (!qedf_dbg_root)
+ QEDF_INFO(NULL, QEDF_LOG_DEBUGFS, "Init of debugfs "
+ "failed\n");
+}
+
+/**
+ * qedf_dbg_exit - clean out the driver's debugfs entries
+ **/
+void
+qedf_dbg_exit(void)
+{
+ QEDF_INFO(NULL, QEDF_LOG_DEBUGFS, "Destroying debugfs root "
+ "entry\n");
+
+ /* remove qed dir in root of debugfs */
+ debugfs_remove_recursive(qedf_dbg_root);
+ qedf_dbg_root = NULL;
+}
+
+struct qedf_debugfs_ops qedf_debugfs_ops[] = {
+ { "fp_int", NULL },
+ { "io_trace", NULL },
+ { "debug", NULL },
+ { "stop_io_on_error", NULL},
+ { "driver_stats", NULL},
+ { "clear_stats", NULL},
+ { "offload_stats", NULL},
+ /* This must be last */
+ { NULL, NULL }
+};
+
+DECLARE_PER_CPU(struct qedf_percpu_iothread_s, qedf_percpu_iothreads);
+
+static ssize_t
+qedf_dbg_fp_int_cmd_read(struct file *filp, char __user *buffer, size_t count,
+ loff_t *ppos)
+{
+ size_t cnt = 0;
+ int id;
+ struct qedf_fastpath *fp = NULL;
+ struct qedf_dbg_ctx *qedf_dbg =
+ (struct qedf_dbg_ctx *)filp->private_data;
+ struct qedf_ctx *qedf = container_of(qedf_dbg,
+ struct qedf_ctx, dbg_ctx);
+
+ QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
+
+ cnt = sprintf(buffer, "\nFastpath I/O completions\n\n");
+
+ for (id = 0; id < qedf->num_queues; id++) {
+ fp = &(qedf->fp_array[id]);
+ if (fp->sb_id == QEDF_SB_ID_NULL)
+ continue;
+ cnt += sprintf((buffer + cnt), "#%d: %lu\n", id,
+ fp->completions);
+ }
+
+ cnt = min_t(int, count, cnt - *ppos);
+ *ppos += cnt;
+ return cnt;
+}
+
+static ssize_t
+qedf_dbg_fp_int_cmd_write(struct file *filp, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ if (!count || *ppos)
+ return 0;
+
+ return count;
+}
+
+static ssize_t
+qedf_dbg_debug_cmd_read(struct file *filp, char __user *buffer, size_t count,
+ loff_t *ppos)
+{
+ int cnt;
+ struct qedf_dbg_ctx *qedf =
+ (struct qedf_dbg_ctx *)filp->private_data;
+
+ QEDF_INFO(qedf, QEDF_LOG_DEBUGFS, "entered\n");
+ cnt = sprintf(buffer, "debug mask = 0x%x\n", qedf_debug);
+
+ cnt = min_t(int, count, cnt - *ppos);
+ *ppos += cnt;
+ return cnt;
+}
+
+static ssize_t
+qedf_dbg_debug_cmd_write(struct file *filp, const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ uint32_t val;
+ void *kern_buf;
+ int rval;
+ struct qedf_dbg_ctx *qedf =
+ (struct qedf_dbg_ctx *)filp->private_data;
+
+ if (!count || *ppos)
+ return 0;
+
+ kern_buf = memdup_user(buffer, count);
+ if (IS_ERR(kern_buf))
+ return PTR_ERR(kern_buf);
+
+ rval = kstrtouint(kern_buf, 10, &val);
+ kfree(kern_buf);
+ if (rval)
+ return rval;
+
+ if (val == 1)
+ qedf_debug = QEDF_DEFAULT_LOG_MASK;
+ else
+ qedf_debug = val;
+
+ QEDF_INFO(qedf, QEDF_LOG_DEBUGFS, "Setting debug=0x%x.\n", val);
+ return count;
+}
+
+static ssize_t
+qedf_dbg_stop_io_on_error_cmd_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ int cnt;
+ struct qedf_dbg_ctx *qedf_dbg =
+ (struct qedf_dbg_ctx *)filp->private_data;
+ struct qedf_ctx *qedf = container_of(qedf_dbg,
+ struct qedf_ctx, dbg_ctx);
+
+ QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
+ cnt = sprintf(buffer, "%s\n",
+ qedf->stop_io_on_error ? "true" : "false");
+
+ cnt = min_t(int, count, cnt - *ppos);
+ *ppos += cnt;
+ return cnt;
+}
+
+static ssize_t
+qedf_dbg_stop_io_on_error_cmd_write(struct file *filp,
+ const char __user *buffer, size_t count,
+ loff_t *ppos)
+{
+ void *kern_buf;
+ struct qedf_dbg_ctx *qedf_dbg =
+ (struct qedf_dbg_ctx *)filp->private_data;
+ struct qedf_ctx *qedf = container_of(qedf_dbg, struct qedf_ctx,
+ dbg_ctx);
+
+ QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
+
+ if (!count || *ppos)
+ return 0;
+
+ kern_buf = memdup_user(buffer, 6);
+ if (IS_ERR(kern_buf))
+ return PTR_ERR(kern_buf);
+
+ if (strncmp(kern_buf, "false", 5) == 0)
+ qedf->stop_io_on_error = false;
+ else if (strncmp(kern_buf, "true", 4) == 0)
+ qedf->stop_io_on_error = true;
+ else if (strncmp(kern_buf, "now", 3) == 0)
+ /* Trigger from user to stop all I/O on this host */
+ set_bit(QEDF_UNLOADING, &qedf->flags);
+
+ kfree(kern_buf);
+ return count;
+}
+
+static int
+qedf_io_trace_show(struct seq_file *s, void *unused)
+{
+ int i, idx = 0;
+ struct qedf_ctx *qedf = s->private;
+ struct qedf_dbg_ctx *qedf_dbg = &qedf->dbg_ctx;
+ struct qedf_io_log *io_log;
+ unsigned long flags;
+
+ if (!qedf_io_tracing) {
+ seq_puts(s, "I/O tracing not enabled.\n");
+ goto out;
+ }
+
+ QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n");
+
+ spin_lock_irqsave(&qedf->io_trace_lock, flags);
+ idx = qedf->io_trace_idx;
+ for (i = 0; i < QEDF_IO_TRACE_SIZE; i++) {
+ io_log = &qedf->io_trace_buf[idx];
+ seq_printf(s, "%d:", io_log->direction);
+ seq_printf(s, "0x%x:", io_log->task_id);
+ seq_printf(s, "0x%06x:", io_log->port_id);
+ seq_printf(s, "%d:", io_log->lun);
+ seq_printf(s, "0x%02x:", io_log->op);
+ seq_printf(s, "0x%02x%02x%02x%02x:", io_log->lba[0],
+ io_log->lba[1], io_log->lba[2], io_log->lba[3]);
+ seq_printf(s, "%d:", io_log->bufflen);
+ seq_printf(s, "%d:", io_log->sg_count);
+ seq_printf(s, "0x%08x:", io_log->result);
+ seq_printf(s, "%lu:", io_log->jiffies);
+ seq_printf(s, "%d:", io_log->refcount);
+ seq_printf(s, "%d:", io_log->req_cpu);
+ seq_printf(s, "%d:", io_log->int_cpu);
+ seq_printf(s, "%d:", io_log->rsp_cpu);
+ seq_printf(s, "%d\n", io_log->sge_type);
+
+ idx++;
+ if (idx == QEDF_IO_TRACE_SIZE)
+ idx = 0;
+ }
+ spin_unlock_irqrestore(&qedf->io_trace_lock, flags);
+
+out:
+ return 0;
+}
+
+static int
+qedf_dbg_io_trace_open(struct inode *inode, struct file *file)
+{
+ struct qedf_dbg_ctx *qedf_dbg = inode->i_private;
+ struct qedf_ctx *qedf = container_of(qedf_dbg,
+ struct qedf_ctx, dbg_ctx);
+
+ return single_open(file, qedf_io_trace_show, qedf);
+}
+
+static int
+qedf_driver_stats_show(struct seq_file *s, void *unused)
+{
+ struct qedf_ctx *qedf = s->private;
+ struct qedf_rport *fcport;
+ struct fc_rport_priv *rdata;
+
+ seq_printf(s, "cmg_mgr free io_reqs: %d\n",
+ atomic_read(&qedf->cmd_mgr->free_list_cnt));
+ seq_printf(s, "slow SGEs: %d\n", qedf->slow_sge_ios);
+ seq_printf(s, "single SGEs: %d\n", qedf->single_sge_ios);
+ seq_printf(s, "fast SGEs: %d\n\n", qedf->fast_sge_ios);
+
+ seq_puts(s, "Offloaded ports:\n\n");
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
+ rdata = fcport->rdata;
+ if (rdata == NULL)
+ continue;
+ seq_printf(s, "%06x: free_sqes: %d, num_active_ios: %d\n",
+ rdata->ids.port_id, atomic_read(&fcport->free_sqes),
+ atomic_read(&fcport->num_active_ios));
+ }
+ rcu_read_unlock();
+
+ return 0;
+}
+
+static int
+qedf_dbg_driver_stats_open(struct inode *inode, struct file *file)
+{
+ struct qedf_dbg_ctx *qedf_dbg = inode->i_private;
+ struct qedf_ctx *qedf = container_of(qedf_dbg,
+ struct qedf_ctx, dbg_ctx);
+
+ return single_open(file, qedf_driver_stats_show, qedf);
+}
+
+static ssize_t
+qedf_dbg_clear_stats_cmd_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ int cnt = 0;
+
+ /* Essentially a read stub */
+ cnt = min_t(int, count, cnt - *ppos);
+ *ppos += cnt;
+ return cnt;
+}
+
+static ssize_t
+qedf_dbg_clear_stats_cmd_write(struct file *filp,
+ const char __user *buffer, size_t count,
+ loff_t *ppos)
+{
+ struct qedf_dbg_ctx *qedf_dbg =
+ (struct qedf_dbg_ctx *)filp->private_data;
+ struct qedf_ctx *qedf = container_of(qedf_dbg, struct qedf_ctx,
+ dbg_ctx);
+
+ QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "Clearing stat counters.\n");
+
+ if (!count || *ppos)
+ return 0;
+
+ /* Clear stat counters exposed by 'stats' node */
+ qedf->slow_sge_ios = 0;
+ qedf->single_sge_ios = 0;
+ qedf->fast_sge_ios = 0;
+
+ return count;
+}
+
+static int
+qedf_offload_stats_show(struct seq_file *s, void *unused)
+{
+ struct qedf_ctx *qedf = s->private;
+ struct qed_fcoe_stats *fw_fcoe_stats;
+
+ fw_fcoe_stats = kmalloc(sizeof(struct qed_fcoe_stats), GFP_KERNEL);
+ if (!fw_fcoe_stats) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate memory for "
+ "fw_fcoe_stats.\n");
+ goto out;
+ }
+
+ /* Query firmware for offload stats */
+ qed_ops->get_stats(qedf->cdev, fw_fcoe_stats);
+
+ seq_printf(s, "fcoe_rx_byte_cnt=%llu\n"
+ "fcoe_rx_data_pkt_cnt=%llu\n"
+ "fcoe_rx_xfer_pkt_cnt=%llu\n"
+ "fcoe_rx_other_pkt_cnt=%llu\n"
+ "fcoe_silent_drop_pkt_cmdq_full_cnt=%u\n"
+ "fcoe_silent_drop_pkt_crc_error_cnt=%u\n"
+ "fcoe_silent_drop_pkt_task_invalid_cnt=%u\n"
+ "fcoe_silent_drop_total_pkt_cnt=%u\n"
+ "fcoe_silent_drop_pkt_rq_full_cnt=%u\n"
+ "fcoe_tx_byte_cnt=%llu\n"
+ "fcoe_tx_data_pkt_cnt=%llu\n"
+ "fcoe_tx_xfer_pkt_cnt=%llu\n"
+ "fcoe_tx_other_pkt_cnt=%llu\n",
+ fw_fcoe_stats->fcoe_rx_byte_cnt,
+ fw_fcoe_stats->fcoe_rx_data_pkt_cnt,
+ fw_fcoe_stats->fcoe_rx_xfer_pkt_cnt,
+ fw_fcoe_stats->fcoe_rx_other_pkt_cnt,
+ fw_fcoe_stats->fcoe_silent_drop_pkt_cmdq_full_cnt,
+ fw_fcoe_stats->fcoe_silent_drop_pkt_crc_error_cnt,
+ fw_fcoe_stats->fcoe_silent_drop_pkt_task_invalid_cnt,
+ fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt,
+ fw_fcoe_stats->fcoe_silent_drop_pkt_rq_full_cnt,
+ fw_fcoe_stats->fcoe_tx_byte_cnt,
+ fw_fcoe_stats->fcoe_tx_data_pkt_cnt,
+ fw_fcoe_stats->fcoe_tx_xfer_pkt_cnt,
+ fw_fcoe_stats->fcoe_tx_other_pkt_cnt);
+
+ kfree(fw_fcoe_stats);
+out:
+ return 0;
+}
+
+static int
+qedf_dbg_offload_stats_open(struct inode *inode, struct file *file)
+{
+ struct qedf_dbg_ctx *qedf_dbg = inode->i_private;
+ struct qedf_ctx *qedf = container_of(qedf_dbg,
+ struct qedf_ctx, dbg_ctx);
+
+ return single_open(file, qedf_offload_stats_show, qedf);
+}
+
+
+const struct file_operations qedf_dbg_fops[] = {
+ qedf_dbg_fileops(qedf, fp_int),
+ qedf_dbg_fileops_seq(qedf, io_trace),
+ qedf_dbg_fileops(qedf, debug),
+ qedf_dbg_fileops(qedf, stop_io_on_error),
+ qedf_dbg_fileops_seq(qedf, driver_stats),
+ qedf_dbg_fileops(qedf, clear_stats),
+ qedf_dbg_fileops_seq(qedf, offload_stats),
+ /* This must be last */
+ { NULL, NULL },
+};
+
+#else /* CONFIG_DEBUG_FS */
+void qedf_dbg_host_init(struct qedf_dbg_ctx *);
+void qedf_dbg_host_exit(struct qedf_dbg_ctx *);
+void qedf_dbg_init(char *);
+void qedf_dbg_exit(void);
+#endif /* CONFIG_DEBUG_FS */
diff --git a/drivers/scsi/qedf/qedf_els.c b/drivers/scsi/qedf/qedf_els.c
new file mode 100644
index 0000000..b6f7674
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_els.c
@@ -0,0 +1,983 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include "qedf.h"
+
+/* It's assumed that the lock is held when calling this function. */
+static int qedf_initiate_els(struct qedf_rport *fcport, unsigned int op,
+ void *data, uint32_t data_len,
+ void (*cb_func)(struct qedf_els_cb_arg *cb_arg),
+ struct qedf_els_cb_arg *cb_arg, uint32_t timer_msec)
+{
+ struct qedf_ctx *qedf = fcport->qedf;
+ struct fc_lport *lport = qedf->lport;
+ struct qedf_ioreq *els_req;
+ struct qedf_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr;
+ struct fcoe_task_context *task;
+ int rc = 0;
+ uint32_t did, sid;
+ uint16_t xid;
+ uint32_t start_time = jiffies / HZ;
+ uint32_t current_time;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Sending ELS\n");
+
+ rc = fc_remote_port_chkready(fcport->rport);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "els 0x%x: rport not ready\n", op);
+ rc = -EAGAIN;
+ goto els_err;
+ }
+ if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "els 0x%x: link is not ready\n",
+ op);
+ rc = -EAGAIN;
+ goto els_err;
+ }
+
+ if (!(test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))) {
+ QEDF_ERR(&(qedf->dbg_ctx), "els 0x%x: fcport not ready\n", op);
+ rc = -EINVAL;
+ goto els_err;
+ }
+
+retry_els:
+ els_req = qedf_alloc_cmd(fcport, QEDF_ELS);
+ if (!els_req) {
+ current_time = jiffies / HZ;
+ if ((current_time - start_time) > 10) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "els: Failed els 0x%x\n", op);
+ rc = -ENOMEM;
+ goto els_err;
+ }
+ mdelay(20 * USEC_PER_MSEC);
+ goto retry_els;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "initiate_els els_req = "
+ "0x%p cb_arg = %p xid = %x\n", els_req, cb_arg,
+ els_req->xid);
+ els_req->sc_cmd = NULL;
+ els_req->cmd_type = QEDF_ELS;
+ els_req->fcport = fcport;
+ els_req->cb_func = cb_func;
+ cb_arg->io_req = els_req;
+ cb_arg->op = op;
+ els_req->cb_arg = cb_arg;
+ els_req->data_xfer_len = data_len;
+
+ /* Record which cpu this request is associated with */
+ els_req->cpu = smp_processor_id();
+
+ mp_req = (struct qedf_mp_req *)&(els_req->mp_req);
+ rc = qedf_init_mp_req(els_req);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "ELS MP request init failed\n");
+ kref_put(&els_req->refcount, qedf_release_cmd);
+ goto els_err;
+ } else {
+ rc = 0;
+ }
+
+ /* Fill ELS Payload */
+ if ((op >= ELS_LS_RJT) && (op <= ELS_AUTH_ELS)) {
+ memcpy(mp_req->req_buf, data, data_len);
+ } else {
+ QEDF_ERR(&(qedf->dbg_ctx), "Invalid ELS op 0x%x\n", op);
+ els_req->cb_func = NULL;
+ els_req->cb_arg = NULL;
+ kref_put(&els_req->refcount, qedf_release_cmd);
+ rc = -EINVAL;
+ }
+
+ if (rc)
+ goto els_err;
+
+ /* Fill FC header */
+ fc_hdr = &(mp_req->req_fc_hdr);
+
+ did = fcport->rdata->ids.port_id;
+ sid = fcport->sid;
+
+ __fc_fill_fc_hdr(fc_hdr, FC_RCTL_ELS_REQ, sid, did,
+ FC_TYPE_ELS, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
+ FC_FC_SEQ_INIT, 0);
+
+ /* Obtain exchange id */
+ xid = els_req->xid;
+
+ /* Initialize task context for this IO request */
+ task = qedf_get_task_mem(&qedf->tasks, xid);
+ qedf_init_mp_task(els_req, task);
+
+ /* Put timer on original I/O request */
+ if (timer_msec)
+ qedf_cmd_timer_set(qedf, els_req, timer_msec);
+
+ qedf_add_to_sq(fcport, xid, 0, FCOE_TASK_TYPE_MIDPATH, 0);
+
+ /* Ring doorbell */
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Ringing doorbell for ELS "
+ "req\n");
+ qedf_ring_doorbell(fcport);
+els_err:
+ return rc;
+}
+
+void qedf_process_els_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *els_req)
+{
+ struct fcoe_task_context *task_ctx;
+ struct scsi_cmnd *sc_cmd;
+ uint16_t xid;
+ struct fcoe_cqe_midpath_info *mp_info;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Entered with xid = 0x%x"
+ " cmd_type = %d.\n", els_req->xid, els_req->cmd_type);
+
+ /* Kill the ELS timer */
+ cancel_delayed_work(&els_req->timeout_work);
+
+ xid = els_req->xid;
+ task_ctx = qedf_get_task_mem(&qedf->tasks, xid);
+ sc_cmd = els_req->sc_cmd;
+
+ /* Get ELS response length from CQE */
+ mp_info = &cqe->cqe_info.midpath_info;
+ els_req->mp_req.resp_len = mp_info->data_placement_size;
+
+ /* Parse ELS response */
+ if ((els_req->cb_func) && (els_req->cb_arg)) {
+ els_req->cb_func(els_req->cb_arg);
+ els_req->cb_arg = NULL;
+ }
+
+ kref_put(&els_req->refcount, qedf_release_cmd);
+}
+
+static void qedf_rrq_compl(struct qedf_els_cb_arg *cb_arg)
+{
+ struct qedf_ioreq *orig_io_req;
+ struct qedf_ioreq *rrq_req;
+ struct qedf_ctx *qedf;
+ int refcount;
+
+ rrq_req = cb_arg->io_req;
+ qedf = rrq_req->fcport->qedf;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Entered.\n");
+
+ orig_io_req = cb_arg->aborted_io_req;
+
+ if (!orig_io_req)
+ goto out_free;
+
+ if (rrq_req->event != QEDF_IOREQ_EV_ELS_TMO &&
+ rrq_req->event != QEDF_IOREQ_EV_ELS_ERR_DETECT)
+ cancel_delayed_work_sync(&orig_io_req->timeout_work);
+
+ refcount = atomic_read(&orig_io_req->refcount.refcount);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "rrq_compl: orig io = %p,"
+ " orig xid = 0x%x, rrq_xid = 0x%x, refcount=%d\n",
+ orig_io_req, orig_io_req->xid, rrq_req->xid, refcount);
+
+ /* This should return the aborted io_req to the command pool */
+ if (orig_io_req)
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+
+out_free:
+ kfree(cb_arg);
+}
+
+/* Assumes kref is already held by caller */
+int qedf_send_rrq(struct qedf_ioreq *aborted_io_req)
+{
+
+ struct fc_els_rrq rrq;
+ struct qedf_rport *fcport;
+ struct fc_lport *lport;
+ struct qedf_els_cb_arg *cb_arg = NULL;
+ struct qedf_ctx *qedf;
+ uint32_t sid;
+ uint32_t r_a_tov;
+ int rc;
+
+ if (!aborted_io_req) {
+ QEDF_ERR(NULL, "abort_io_req is NULL.\n");
+ return -EINVAL;
+ }
+
+ fcport = aborted_io_req->fcport;
+
+ /* Check that fcport is still offloaded */
+ if (!(test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))) {
+ QEDF_ERR(NULL, "fcport is no longer offloaded.\n");
+ return -EINVAL;
+ }
+
+ if (!fcport->qedf) {
+ QEDF_ERR(NULL, "fcport->qedf is NULL.\n");
+ return -EINVAL;
+ }
+
+ qedf = fcport->qedf;
+ lport = qedf->lport;
+ sid = fcport->sid;
+ r_a_tov = lport->r_a_tov;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Sending RRQ orig "
+ "io = %p, orig_xid = 0x%x\n", aborted_io_req,
+ aborted_io_req->xid);
+ memset(&rrq, 0, sizeof(rrq));
+
+ cb_arg = kzalloc(sizeof(struct qedf_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate cb_arg for "
+ "RRQ\n");
+ rc = -ENOMEM;
+ goto rrq_err;
+ }
+
+ cb_arg->aborted_io_req = aborted_io_req;
+
+ rrq.rrq_cmd = ELS_RRQ;
+ hton24(rrq.rrq_s_id, sid);
+ rrq.rrq_ox_id = htons(aborted_io_req->xid);
+ rrq.rrq_rx_id =
+ htons(aborted_io_req->task->tstorm_st_context.read_write.rx_id);
+
+ rc = qedf_initiate_els(fcport, ELS_RRQ, &rrq, sizeof(rrq),
+ qedf_rrq_compl, cb_arg, r_a_tov);
+
+rrq_err:
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "RRQ failed - release orig io "
+ "req 0x%x\n", aborted_io_req->xid);
+ kfree(cb_arg);
+ kref_put(&aborted_io_req->refcount, qedf_release_cmd);
+ }
+ return rc;
+}
+
+static void qedf_process_l2_frame_compl(struct qedf_rport *fcport,
+ unsigned char *buf,
+ u32 frame_len, u16 l2_oxid)
+{
+ struct fc_lport *lport = fcport->qedf->lport;
+ struct fc_frame_header *fh;
+ struct fc_frame *fp;
+ u32 payload_len;
+ u32 crc;
+
+ payload_len = frame_len - sizeof(struct fc_frame_header);
+
+ fp = fc_frame_alloc(lport, payload_len);
+ if (!fp) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx),
+ "fc_frame_alloc failure.\n");
+ return;
+ }
+
+ /* Copy FC Frame header and payload into the frame */
+ fh = (struct fc_frame_header *)fc_frame_header_get(fp);
+ memcpy(fh, buf, frame_len);
+
+ /* Set the OXID we return to what libfc used */
+ if (l2_oxid != FC_XID_UNKNOWN)
+ fh->fh_ox_id = htons(l2_oxid);
+
+ /* Setup header fields */
+ fh->fh_r_ctl = FC_RCTL_ELS_REP;
+ fh->fh_type = FC_TYPE_ELS;
+ /* Last sequence, end sequence */
+ fh->fh_f_ctl[0] = 0x98;
+ hton24(fh->fh_d_id, lport->port_id);
+ hton24(fh->fh_s_id, fcport->rdata->ids.port_id);
+ fh->fh_rx_id = 0xffff;
+
+ /* Set frame attributes */
+ crc = fcoe_fc_crc(fp);
+ fc_frame_init(fp);
+ fr_dev(fp) = lport;
+ fr_sof(fp) = FC_SOF_I3;
+ fr_eof(fp) = FC_EOF_T;
+ fr_crc(fp) = cpu_to_le32(~crc);
+
+ /* Send completed request to libfc */
+ fc_exch_recv(lport, fp);
+}
+
+/*
+ * In instances where an ELS command times out we may need to restart the
+ * rport by logging out and then logging back in.
+ */
+void qedf_restart_rport(struct qedf_rport *fcport)
+{
+ struct fc_lport *lport;
+ struct fc_rport_priv *rdata;
+ u32 port_id;
+
+ if (!fcport)
+ return;
+
+ rdata = fcport->rdata;
+ if (rdata) {
+ lport = fcport->qedf->lport;
+ port_id = rdata->ids.port_id;
+ QEDF_ERR(&(fcport->qedf->dbg_ctx),
+ "LOGO port_id=%x.\n", port_id);
+ mutex_lock(&lport->disc.disc_mutex);
+ fc_rport_logoff(rdata);
+ /* Recreate the rport and log back in */
+ rdata = fc_rport_create(lport, port_id);
+ if (rdata)
+ fc_rport_login(rdata);
+ mutex_unlock(&lport->disc.disc_mutex);
+ }
+}
+
+static void qedf_l2_els_compl(struct qedf_els_cb_arg *cb_arg)
+{
+ struct qedf_ioreq *els_req;
+ struct qedf_rport *fcport;
+ struct qedf_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr;
+ unsigned char *buf;
+ void *resp_buf;
+ u32 resp_len, hdr_len;
+ u16 l2_oxid;
+ int frame_len;
+
+ l2_oxid = cb_arg->l2_oxid;
+ els_req = cb_arg->io_req;
+
+ if (!els_req) {
+ QEDF_ERR(NULL, "els_req is NULL.\n");
+ goto free_arg;
+ }
+
+ /*
+ * If we are flushing the command just free the cb_arg as none of the
+ * response data will be valid.
+ */
+ if (els_req->event == QEDF_IOREQ_EV_ELS_FLUSH)
+ goto free_arg;
+
+ fcport = els_req->fcport;
+ mp_req = &(els_req->mp_req);
+ fc_hdr = &(mp_req->resp_fc_hdr);
+ resp_len = mp_req->resp_len;
+ resp_buf = mp_req->resp_buf;
+
+ /*
+ * If a middle path ELS command times out, don't try to return
+ * the command but rather do any internal cleanup and then libfc
+ * timeout the command and clean up its internal resources.
+ */
+ if (els_req->event == QEDF_IOREQ_EV_ELS_TMO) {
+ /*
+ * If ADISC times out, libfc will timeout the exchange and then
+ * try to send a PLOGI which will timeout since the session is
+ * still offloaded. Force libfc to logout the session which
+ * will offload the connection and allow the PLOGI response to
+ * flow over the LL2 path.
+ */
+ if (cb_arg->op == ELS_ADISC)
+ qedf_restart_rport(fcport);
+ return;
+ }
+
+ buf = kzalloc(QEDF_PAGE_SIZE, GFP_ATOMIC);
+ if (!buf) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx),
+ "Unable to alloc mp buf.\n");
+ goto free_arg;
+ }
+ hdr_len = sizeof(*fc_hdr);
+ if (hdr_len + resp_len > QEDF_PAGE_SIZE) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx), "resp_len is "
+ "beyond page size.\n");
+ goto free_buf;
+ }
+ memcpy(buf, fc_hdr, hdr_len);
+ memcpy(buf + hdr_len, resp_buf, resp_len);
+ frame_len = hdr_len + resp_len;
+
+ QEDF_INFO(&(fcport->qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Completing OX_ID 0x%x back to libfc.\n", l2_oxid);
+ qedf_process_l2_frame_compl(fcport, buf, frame_len, l2_oxid);
+
+free_buf:
+ kfree(buf);
+free_arg:
+ kfree(cb_arg);
+}
+
+int qedf_send_adisc(struct qedf_rport *fcport, struct fc_frame *fp)
+{
+ struct fc_els_adisc *adisc;
+ struct fc_frame_header *fh;
+ struct fc_lport *lport = fcport->qedf->lport;
+ struct qedf_els_cb_arg *cb_arg = NULL;
+ struct qedf_ctx *qedf;
+ uint32_t r_a_tov = lport->r_a_tov;
+ int rc;
+
+ qedf = fcport->qedf;
+ fh = fc_frame_header_get(fp);
+
+ cb_arg = kzalloc(sizeof(struct qedf_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate cb_arg for "
+ "ADISC\n");
+ rc = -ENOMEM;
+ goto adisc_err;
+ }
+ cb_arg->l2_oxid = ntohs(fh->fh_ox_id);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Sending ADISC ox_id=0x%x.\n", cb_arg->l2_oxid);
+
+ adisc = fc_frame_payload_get(fp, sizeof(*adisc));
+
+ rc = qedf_initiate_els(fcport, ELS_ADISC, adisc, sizeof(*adisc),
+ qedf_l2_els_compl, cb_arg, r_a_tov);
+
+adisc_err:
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "ADISC failed.\n");
+ kfree(cb_arg);
+ }
+ return rc;
+}
+
+static void qedf_srr_compl(struct qedf_els_cb_arg *cb_arg)
+{
+ struct qedf_ioreq *orig_io_req;
+ struct qedf_ioreq *srr_req;
+ struct qedf_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr, *fh;
+ struct fc_frame *fp;
+ unsigned char *buf;
+ void *resp_buf;
+ u32 resp_len, hdr_len;
+ struct fc_lport *lport;
+ struct qedf_ctx *qedf;
+ int refcount;
+ u8 opcode;
+
+ srr_req = cb_arg->io_req;
+ qedf = srr_req->fcport->qedf;
+ lport = qedf->lport;
+
+ orig_io_req = cb_arg->aborted_io_req;
+
+ if (!orig_io_req)
+ goto out_free;
+
+ clear_bit(QEDF_CMD_SRR_SENT, &orig_io_req->flags);
+
+ if (srr_req->event != QEDF_IOREQ_EV_ELS_TMO &&
+ srr_req->event != QEDF_IOREQ_EV_ELS_ERR_DETECT)
+ cancel_delayed_work_sync(&orig_io_req->timeout_work);
+
+ refcount = atomic_read(&orig_io_req->refcount.refcount);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Entered: orig_io=%p,"
+ " orig_io_xid=0x%x, rec_xid=0x%x, refcount=%d\n",
+ orig_io_req, orig_io_req->xid, srr_req->xid, refcount);
+
+ /* If a SRR times out, simply free resources */
+ if (srr_req->event == QEDF_IOREQ_EV_ELS_TMO)
+ goto out_free;
+
+ /* Normalize response data into struct fc_frame */
+ mp_req = &(srr_req->mp_req);
+ fc_hdr = &(mp_req->resp_fc_hdr);
+ resp_len = mp_req->resp_len;
+ resp_buf = mp_req->resp_buf;
+ hdr_len = sizeof(*fc_hdr);
+
+ buf = kzalloc(QEDF_PAGE_SIZE, GFP_ATOMIC);
+ if (!buf) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "Unable to alloc mp buf.\n");
+ goto out_free;
+ }
+
+ memcpy(buf, fc_hdr, hdr_len);
+ memcpy(buf + hdr_len, resp_buf, resp_len);
+
+ fp = fc_frame_alloc(lport, resp_len);
+ if (!fp) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "fc_frame_alloc failure.\n");
+ goto out_buf;
+ }
+
+ /* Copy FC Frame header and payload into the frame */
+ fh = (struct fc_frame_header *)fc_frame_header_get(fp);
+ memcpy(fh, buf, hdr_len + resp_len);
+
+ opcode = fc_frame_payload_op(fp);
+ switch (opcode) {
+ case ELS_LS_ACC:
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "SRR success.\n");
+ break;
+ case ELS_LS_RJT:
+ QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_ELS,
+ "SRR rejected.\n");
+ qedf_initiate_abts(orig_io_req, true);
+ break;
+ }
+
+ fc_frame_free(fp);
+out_buf:
+ kfree(buf);
+out_free:
+ /* Put reference for original command since SRR completed */
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+ kfree(cb_arg);
+}
+
+static int qedf_send_srr(struct qedf_ioreq *orig_io_req, u32 offset, u8 r_ctl)
+{
+ struct fcp_srr srr;
+ struct qedf_ctx *qedf;
+ struct qedf_rport *fcport;
+ struct fc_lport *lport;
+ struct qedf_els_cb_arg *cb_arg = NULL;
+ u32 sid, r_a_tov;
+ int rc;
+
+ if (!orig_io_req) {
+ QEDF_ERR(NULL, "orig_io_req is NULL.\n");
+ return -EINVAL;
+ }
+
+ fcport = orig_io_req->fcport;
+
+ /* Check that fcport is still offloaded */
+ if (!(test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))) {
+ QEDF_ERR(NULL, "fcport is no longer offloaded.\n");
+ return -EINVAL;
+ }
+
+ if (!fcport->qedf) {
+ QEDF_ERR(NULL, "fcport->qedf is NULL.\n");
+ return -EINVAL;
+ }
+
+ /* Take reference until SRR command completion */
+ kref_get(&orig_io_req->refcount);
+
+ qedf = fcport->qedf;
+ lport = qedf->lport;
+ sid = fcport->sid;
+ r_a_tov = lport->r_a_tov;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Sending SRR orig_io=%p, "
+ "orig_xid=0x%x\n", orig_io_req, orig_io_req->xid);
+ memset(&srr, 0, sizeof(srr));
+
+ cb_arg = kzalloc(sizeof(struct qedf_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate cb_arg for "
+ "SRR\n");
+ rc = -ENOMEM;
+ goto srr_err;
+ }
+
+ cb_arg->aborted_io_req = orig_io_req;
+
+ srr.srr_op = ELS_SRR;
+ srr.srr_ox_id = htons(orig_io_req->xid);
+ srr.srr_rx_id = htons(orig_io_req->rx_id);
+ srr.srr_rel_off = htonl(offset);
+ srr.srr_r_ctl = r_ctl;
+
+ rc = qedf_initiate_els(fcport, ELS_SRR, &srr, sizeof(srr),
+ qedf_srr_compl, cb_arg, r_a_tov);
+
+srr_err:
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "SRR failed - release orig_io_req"
+ "=0x%x\n", orig_io_req->xid);
+ kfree(cb_arg);
+ /* If we fail to queue SRR, send ABTS to orig_io */
+ qedf_initiate_abts(orig_io_req, true);
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+ } else
+ /* Tell other threads that SRR is in progress */
+ set_bit(QEDF_CMD_SRR_SENT, &orig_io_req->flags);
+
+ return rc;
+}
+
+static void qedf_initiate_seq_cleanup(struct qedf_ioreq *orig_io_req,
+ u32 offset, u8 r_ctl)
+{
+ struct qedf_rport *fcport;
+ unsigned long flags;
+ struct qedf_els_cb_arg *cb_arg;
+
+ fcport = orig_io_req->fcport;
+
+ QEDF_INFO(&(fcport->qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Doing sequence cleanup for xid=0x%x offset=%u.\n",
+ orig_io_req->xid, offset);
+
+ cb_arg = kzalloc(sizeof(struct qedf_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx), "Unable to allocate cb_arg "
+ "for sequence cleanup\n");
+ return;
+ }
+
+ /* Get reference for cleanup request */
+ kref_get(&orig_io_req->refcount);
+
+ orig_io_req->cmd_type = QEDF_SEQ_CLEANUP;
+ cb_arg->offset = offset;
+ cb_arg->r_ctl = r_ctl;
+ orig_io_req->cb_arg = cb_arg;
+
+ qedf_cmd_timer_set(fcport->qedf, orig_io_req,
+ QEDF_CLEANUP_TIMEOUT * HZ);
+
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+
+ qedf_add_to_sq(fcport, orig_io_req->xid, 0,
+ FCOE_TASK_TYPE_SEQUENCE_CLEANUP, offset);
+ qedf_ring_doorbell(fcport);
+
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+}
+
+void qedf_process_seq_cleanup_compl(struct qedf_ctx *qedf,
+ struct fcoe_cqe *cqe, struct qedf_ioreq *io_req)
+{
+ int rc;
+ struct qedf_els_cb_arg *cb_arg;
+
+ cb_arg = io_req->cb_arg;
+
+ /* If we timed out just free resources */
+ if (io_req->event == QEDF_IOREQ_EV_ELS_TMO || !cqe)
+ goto free;
+
+ /* Kill the timer we put on the request */
+ cancel_delayed_work_sync(&io_req->timeout_work);
+
+ rc = qedf_send_srr(io_req, cb_arg->offset, cb_arg->r_ctl);
+ if (rc)
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to send SRR, I/O will "
+ "abort, xid=0x%x.\n", io_req->xid);
+free:
+ kfree(cb_arg);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+}
+
+static bool qedf_requeue_io_req(struct qedf_ioreq *orig_io_req)
+{
+ struct qedf_rport *fcport;
+ struct qedf_ioreq *new_io_req;
+ unsigned long flags;
+ bool rc = false;
+
+ fcport = orig_io_req->fcport;
+ if (!fcport) {
+ QEDF_ERR(NULL, "fcport is NULL.\n");
+ goto out;
+ }
+
+ if (!orig_io_req->sc_cmd) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx), "sc_cmd is NULL for "
+ "xid=0x%x.\n", orig_io_req->xid);
+ goto out;
+ }
+
+ new_io_req = qedf_alloc_cmd(fcport, QEDF_SCSI_CMD);
+ if (!new_io_req) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx), "Could not allocate new "
+ "io_req.\n");
+ goto out;
+ }
+
+ new_io_req->sc_cmd = orig_io_req->sc_cmd;
+
+ /*
+ * This keeps the sc_cmd struct from being returned to the tape
+ * driver and being requeued twice. We do need to put a reference
+ * for the original I/O request since we will not do a SCSI completion
+ * for it.
+ */
+ orig_io_req->sc_cmd = NULL;
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+
+ /* kref for new command released in qedf_post_io_req on error */
+ if (qedf_post_io_req(fcport, new_io_req)) {
+ QEDF_ERR(&(fcport->qedf->dbg_ctx), "Unable to post io_req\n");
+ /* Return SQE to pool */
+ atomic_inc(&fcport->free_sqes);
+ } else {
+ QEDF_INFO(&(fcport->qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Reissued SCSI command from orig_xid=0x%x on "
+ "new_xid=0x%x.\n", orig_io_req->xid, new_io_req->xid);
+ /*
+ * Abort the original I/O but do not return SCSI command as
+ * it has been reissued on another OX_ID.
+ */
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+ qedf_initiate_abts(orig_io_req, false);
+ goto out;
+ }
+
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+out:
+ return rc;
+}
+
+
+static void qedf_rec_compl(struct qedf_els_cb_arg *cb_arg)
+{
+ struct qedf_ioreq *orig_io_req;
+ struct qedf_ioreq *rec_req;
+ struct qedf_mp_req *mp_req;
+ struct fc_frame_header *fc_hdr, *fh;
+ struct fc_frame *fp;
+ unsigned char *buf;
+ void *resp_buf;
+ u32 resp_len, hdr_len;
+ struct fc_lport *lport;
+ struct qedf_ctx *qedf;
+ int refcount;
+ enum fc_rctl r_ctl;
+ struct fc_els_ls_rjt *rjt;
+ struct fc_els_rec_acc *acc;
+ u8 opcode;
+ u32 offset, e_stat;
+ struct scsi_cmnd *sc_cmd;
+ bool srr_needed = false;
+
+ rec_req = cb_arg->io_req;
+ qedf = rec_req->fcport->qedf;
+ lport = qedf->lport;
+
+ orig_io_req = cb_arg->aborted_io_req;
+
+ if (!orig_io_req)
+ goto out_free;
+
+ if (rec_req->event != QEDF_IOREQ_EV_ELS_TMO &&
+ rec_req->event != QEDF_IOREQ_EV_ELS_ERR_DETECT)
+ cancel_delayed_work_sync(&orig_io_req->timeout_work);
+
+ refcount = atomic_read(&orig_io_req->refcount.refcount);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Entered: orig_io=%p,"
+ " orig_io_xid=0x%x, rec_xid=0x%x, refcount=%d\n",
+ orig_io_req, orig_io_req->xid, rec_req->xid, refcount);
+
+ /* If a REC times out, free resources */
+ if (rec_req->event == QEDF_IOREQ_EV_ELS_TMO)
+ goto out_free;
+
+ /* Normalize response data into struct fc_frame */
+ mp_req = &(rec_req->mp_req);
+ fc_hdr = &(mp_req->resp_fc_hdr);
+ resp_len = mp_req->resp_len;
+ acc = resp_buf = mp_req->resp_buf;
+ hdr_len = sizeof(*fc_hdr);
+
+ buf = kzalloc(QEDF_PAGE_SIZE, GFP_ATOMIC);
+ if (!buf) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "Unable to alloc mp buf.\n");
+ goto out_free;
+ }
+
+ memcpy(buf, fc_hdr, hdr_len);
+ memcpy(buf + hdr_len, resp_buf, resp_len);
+
+ fp = fc_frame_alloc(lport, resp_len);
+ if (!fp) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "fc_frame_alloc failure.\n");
+ goto out_buf;
+ }
+
+ /* Copy FC Frame header and payload into the frame */
+ fh = (struct fc_frame_header *)fc_frame_header_get(fp);
+ memcpy(fh, buf, hdr_len + resp_len);
+
+ opcode = fc_frame_payload_op(fp);
+
+ if (opcode == ELS_LS_RJT) {
+ rjt = fc_frame_payload_get(fp, sizeof(*rjt));
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Received LS_RJT for REC: er_reason=0x%x, "
+ "er_explan=0x%x.\n", rjt->er_reason, rjt->er_explan);
+ /*
+ * The following response(s) mean that we need to reissue the
+ * request on another exchange. We need to do this without
+ * informing the upper layers lest it cause an application
+ * error.
+ */
+ if ((rjt->er_reason == ELS_RJT_LOGIC ||
+ rjt->er_reason == ELS_RJT_UNAB) &&
+ rjt->er_explan == ELS_EXPL_OXID_RXID) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Handle CMD LOST case.\n");
+ qedf_requeue_io_req(orig_io_req);
+ }
+ } else if (opcode == ELS_LS_ACC) {
+ offset = ntohl(acc->reca_fc4value);
+ e_stat = ntohl(acc->reca_e_stat);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Received LS_ACC for REC: offset=0x%x, e_stat=0x%x.\n",
+ offset, e_stat);
+ if (e_stat & ESB_ST_SEQ_INIT) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Target has the seq init\n");
+ goto out_free_frame;
+ }
+ sc_cmd = orig_io_req->sc_cmd;
+ if (!sc_cmd) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "sc_cmd is NULL for xid=0x%x.\n",
+ orig_io_req->xid);
+ goto out_free_frame;
+ }
+ /* SCSI write case */
+ if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) {
+ if (offset == orig_io_req->data_xfer_len) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "WRITE - response lost.\n");
+ r_ctl = FC_RCTL_DD_CMD_STATUS;
+ srr_needed = true;
+ offset = 0;
+ } else {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "WRITE - XFER_RDY/DATA lost.\n");
+ r_ctl = FC_RCTL_DD_DATA_DESC;
+ /* Use data from warning CQE instead of REC */
+ offset = orig_io_req->tx_buf_off;
+ }
+ /* SCSI read case */
+ } else {
+ if (orig_io_req->rx_buf_off ==
+ orig_io_req->data_xfer_len) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "READ - response lost.\n");
+ srr_needed = true;
+ r_ctl = FC_RCTL_DD_CMD_STATUS;
+ offset = 0;
+ } else {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "READ - DATA lost.\n");
+ /*
+ * For read case we always set the offset to 0
+ * for sequence recovery task.
+ */
+ offset = 0;
+ r_ctl = FC_RCTL_DD_SOL_DATA;
+ }
+ }
+
+ if (srr_needed)
+ qedf_send_srr(orig_io_req, offset, r_ctl);
+ else
+ qedf_initiate_seq_cleanup(orig_io_req, offset, r_ctl);
+ }
+
+out_free_frame:
+ fc_frame_free(fp);
+out_buf:
+ kfree(buf);
+out_free:
+ /* Put reference for original command since REC completed */
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+ kfree(cb_arg);
+}
+
+/* Assumes kref is already held by caller */
+int qedf_send_rec(struct qedf_ioreq *orig_io_req)
+{
+
+ struct fc_els_rec rec;
+ struct qedf_rport *fcport;
+ struct fc_lport *lport;
+ struct qedf_els_cb_arg *cb_arg = NULL;
+ struct qedf_ctx *qedf;
+ uint32_t sid;
+ uint32_t r_a_tov;
+ int rc;
+
+ if (!orig_io_req) {
+ QEDF_ERR(NULL, "orig_io_req is NULL.\n");
+ return -EINVAL;
+ }
+
+ fcport = orig_io_req->fcport;
+
+ /* Check that fcport is still offloaded */
+ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ QEDF_ERR(NULL, "fcport is no longer offloaded.\n");
+ return -EINVAL;
+ }
+
+ if (!fcport->qedf) {
+ QEDF_ERR(NULL, "fcport->qedf is NULL.\n");
+ return -EINVAL;
+ }
+
+ /* Take reference until REC command completion */
+ kref_get(&orig_io_req->refcount);
+
+ qedf = fcport->qedf;
+ lport = qedf->lport;
+ sid = fcport->sid;
+ r_a_tov = lport->r_a_tov;
+
+ memset(&rec, 0, sizeof(rec));
+
+ cb_arg = kzalloc(sizeof(struct qedf_els_cb_arg), GFP_NOIO);
+ if (!cb_arg) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate cb_arg for "
+ "REC\n");
+ rc = -ENOMEM;
+ goto rec_err;
+ }
+
+ cb_arg->aborted_io_req = orig_io_req;
+
+ rec.rec_cmd = ELS_REC;
+ hton24(rec.rec_s_id, sid);
+ rec.rec_ox_id = htons(orig_io_req->xid);
+ rec.rec_rx_id =
+ htons(orig_io_req->task->tstorm_st_context.read_write.rx_id);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Sending REC orig_io=%p, "
+ "orig_xid=0x%x rx_id=0x%x\n", orig_io_req,
+ orig_io_req->xid, rec.rec_rx_id);
+ rc = qedf_initiate_els(fcport, ELS_REC, &rec, sizeof(rec),
+ qedf_rec_compl, cb_arg, r_a_tov);
+
+rec_err:
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "REC failed - release orig_io_req"
+ "=0x%x\n", orig_io_req->xid);
+ kfree(cb_arg);
+ kref_put(&orig_io_req->refcount, qedf_release_cmd);
+ }
+ return rc;
+}
diff --git a/drivers/scsi/qedf/qedf_fip.c b/drivers/scsi/qedf/qedf_fip.c
new file mode 100644
index 0000000..868d423
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_fip.c
@@ -0,0 +1,269 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include "qedf.h"
+
+extern const struct qed_fcoe_ops *qed_ops;
+/*
+ * FIP VLAN functions that will eventually move to libfcoe.
+ */
+
+void qedf_fcoe_send_vlan_req(struct qedf_ctx *qedf)
+{
+ struct sk_buff *skb;
+ char *eth_fr;
+ int fr_len;
+ struct fip_vlan *vlan;
+#define MY_FIP_ALL_FCF_MACS ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 2 })
+ static u8 my_fcoe_all_fcfs[ETH_ALEN] = MY_FIP_ALL_FCF_MACS;
+
+ skb = dev_alloc_skb(sizeof(struct fip_vlan));
+ if (!skb)
+ return;
+
+ fr_len = sizeof(*vlan);
+ eth_fr = (char *)skb->data;
+ vlan = (struct fip_vlan *)eth_fr;
+
+ memset(vlan, 0, sizeof(*vlan));
+ ether_addr_copy(vlan->eth.h_source, qedf->mac);
+ ether_addr_copy(vlan->eth.h_dest, my_fcoe_all_fcfs);
+ vlan->eth.h_proto = htons(ETH_P_FIP);
+
+ vlan->fip.fip_ver = FIP_VER_ENCAPS(FIP_VER);
+ vlan->fip.fip_op = htons(FIP_OP_VLAN);
+ vlan->fip.fip_subcode = FIP_SC_VL_REQ;
+ vlan->fip.fip_dl_len = htons(sizeof(vlan->desc) / FIP_BPW);
+
+ vlan->desc.mac.fd_desc.fip_dtype = FIP_DT_MAC;
+ vlan->desc.mac.fd_desc.fip_dlen = sizeof(vlan->desc.mac) / FIP_BPW;
+ ether_addr_copy(vlan->desc.mac.fd_mac, qedf->mac);
+
+ vlan->desc.wwnn.fd_desc.fip_dtype = FIP_DT_NAME;
+ vlan->desc.wwnn.fd_desc.fip_dlen = sizeof(vlan->desc.wwnn) / FIP_BPW;
+ put_unaligned_be64(qedf->lport->wwnn, &vlan->desc.wwnn.fd_wwn);
+
+ skb_put(skb, sizeof(*vlan));
+ skb->protocol = htons(ETH_P_FIP);
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Sending FIP VLAN "
+ "request.");
+
+ if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Cannot send vlan request "
+ "because link is not up.\n");
+
+ kfree_skb(skb);
+ return;
+ }
+ qed_ops->ll2->start_xmit(qedf->cdev, skb);
+}
+
+static void qedf_fcoe_process_vlan_resp(struct qedf_ctx *qedf,
+ struct sk_buff *skb)
+{
+ struct fip_header *fiph;
+ struct fip_desc *desc;
+ u16 vid = 0;
+ ssize_t rlen;
+ size_t dlen;
+
+ fiph = (struct fip_header *)(((void *)skb->data) + 2 * ETH_ALEN + 2);
+
+ rlen = ntohs(fiph->fip_dl_len) * 4;
+ desc = (struct fip_desc *)(fiph + 1);
+ while (rlen > 0) {
+ dlen = desc->fip_dlen * FIP_BPW;
+ switch (desc->fip_dtype) {
+ case FIP_DT_VLAN:
+ vid = ntohs(((struct fip_vlan_desc *)desc)->fd_vlan);
+ break;
+ }
+ desc = (struct fip_desc *)((char *)desc + dlen);
+ rlen -= dlen;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "VLAN response, "
+ "vid=0x%x.\n", vid);
+
+ if (vid > 0 && qedf->vlan_id != vid) {
+ qedf_set_vlan_id(qedf, vid);
+
+ /* Inform waiter that it's ok to call fcoe_ctlr_link up() */
+ complete(&qedf->fipvlan_compl);
+ }
+}
+
+void qedf_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
+{
+ struct qedf_ctx *qedf = container_of(fip, struct qedf_ctx, ctlr);
+ struct ethhdr *eth_hdr;
+ struct vlan_ethhdr *vlan_hdr;
+ struct fip_header *fiph;
+ u16 op, vlan_tci = 0;
+ u8 sub;
+
+ if (!test_bit(QEDF_LL2_STARTED, &qedf->flags)) {
+ QEDF_WARN(&(qedf->dbg_ctx), "LL2 not started\n");
+ kfree_skb(skb);
+ return;
+ }
+
+ fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2);
+ eth_hdr = (struct ethhdr *)skb_mac_header(skb);
+ op = ntohs(fiph->fip_op);
+ sub = fiph->fip_subcode;
+
+ if (!qedf->vlan_hw_insert) {
+ vlan_hdr = (struct vlan_ethhdr *)skb_push(skb, sizeof(*vlan_hdr)
+ - sizeof(*eth_hdr));
+ memcpy(vlan_hdr, eth_hdr, 2 * ETH_ALEN);
+ vlan_hdr->h_vlan_proto = htons(ETH_P_8021Q);
+ vlan_hdr->h_vlan_encapsulated_proto = eth_hdr->h_proto;
+ vlan_hdr->h_vlan_TCI = vlan_tci = htons(qedf->vlan_id);
+ }
+
+ /* Update eth_hdr since we added a VLAN tag */
+ eth_hdr = (struct ethhdr *)skb_mac_header(skb);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FIP frame send: "
+ "dest=%pM op=%x sub=%x vlan=%04x.", eth_hdr->h_dest, op, sub,
+ ntohs(vlan_tci));
+ if (qedf_dump_frames)
+ print_hex_dump(KERN_WARNING, "fip ", DUMP_PREFIX_OFFSET, 16, 1,
+ skb->data, skb->len, false);
+
+ qed_ops->ll2->start_xmit(qedf->cdev, skb);
+}
+
+/* Process incoming FIP frames. */
+void qedf_fip_recv(struct qedf_ctx *qedf, struct sk_buff *skb)
+{
+ struct ethhdr *eth_hdr;
+ struct fip_header *fiph;
+ struct fip_desc *desc;
+ struct fip_mac_desc *mp;
+ struct fip_wwn_desc *wp;
+ struct fip_vn_desc *vp;
+ size_t rlen, dlen;
+ uint32_t cvl_port_id;
+ __u8 cvl_mac[ETH_ALEN];
+ u16 op;
+ u8 sub;
+
+ eth_hdr = (struct ethhdr *)skb_mac_header(skb);
+ fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2);
+ op = ntohs(fiph->fip_op);
+ sub = fiph->fip_subcode;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FIP frame received: "
+ "skb=%p fiph=%p source=%pM op=%x sub=%x", skb, fiph,
+ eth_hdr->h_source, op, sub);
+ if (qedf_dump_frames)
+ print_hex_dump(KERN_WARNING, "fip ", DUMP_PREFIX_OFFSET, 16, 1,
+ skb->data, skb->len, false);
+
+ /* Handle FIP VLAN resp in the driver */
+ if (op == FIP_OP_VLAN && sub == FIP_SC_VL_NOTE) {
+ qedf_fcoe_process_vlan_resp(qedf, skb);
+ qedf->vlan_hw_insert = 0;
+ kfree_skb(skb);
+ } else if (op == FIP_OP_CTRL && sub == FIP_SC_CLR_VLINK) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Clear virtual "
+ "link received.\n");
+
+ /* Check that an FCF has been selected by fcoe */
+ if (qedf->ctlr.sel_fcf == NULL) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Dropping CVL since FCF has not been selected "
+ "yet.");
+ return;
+ }
+
+ cvl_port_id = 0;
+ memset(cvl_mac, 0, ETH_ALEN);
+ /*
+ * We need to loop through the CVL descriptors to determine
+ * if we want to reset the fcoe link
+ */
+ rlen = ntohs(fiph->fip_dl_len) * FIP_BPW;
+ desc = (struct fip_desc *)(fiph + 1);
+ while (rlen >= sizeof(*desc)) {
+ dlen = desc->fip_dlen * FIP_BPW;
+ switch (desc->fip_dtype) {
+ case FIP_DT_MAC:
+ mp = (struct fip_mac_desc *)desc;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "fd_mac=%pM.\n", __func__, mp->fd_mac);
+ ether_addr_copy(cvl_mac, mp->fd_mac);
+ break;
+ case FIP_DT_NAME:
+ wp = (struct fip_wwn_desc *)desc;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "fc_wwpn=%016llx.\n",
+ get_unaligned_be64(&wp->fd_wwn));
+ break;
+ case FIP_DT_VN_ID:
+ vp = (struct fip_vn_desc *)desc;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "fd_fc_id=%x.\n", ntoh24(vp->fd_fc_id));
+ cvl_port_id = ntoh24(vp->fd_fc_id);
+ break;
+ default:
+ /* Ignore anything else */
+ break;
+ }
+ desc = (struct fip_desc *)((char *)desc + dlen);
+ rlen -= dlen;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "cvl_port_id=%06x cvl_mac=%pM.\n", cvl_port_id,
+ cvl_mac);
+ if (cvl_port_id == qedf->lport->port_id &&
+ ether_addr_equal(cvl_mac,
+ qedf->ctlr.sel_fcf->fcf_mac)) {
+ fcoe_ctlr_link_down(&qedf->ctlr);
+ qedf_wait_for_upload(qedf);
+ fcoe_ctlr_link_up(&qedf->ctlr);
+ }
+ kfree_skb(skb);
+ } else {
+ /* Everything else is handled by libfcoe */
+ __skb_pull(skb, ETH_HLEN);
+ fcoe_ctlr_recv(&qedf->ctlr, skb);
+ }
+}
+
+void qedf_update_src_mac(struct fc_lport *lport, u8 *addr)
+{
+ struct qedf_ctx *qedf = lport_priv(lport);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Setting data_src_addr=%pM.\n", addr);
+ ether_addr_copy(qedf->data_src_addr, addr);
+}
+
+u8 *qedf_get_src_mac(struct fc_lport *lport)
+{
+ u8 mac[ETH_ALEN];
+ u8 port_id[3];
+ struct qedf_ctx *qedf = lport_priv(lport);
+
+ /* We need to use the lport port_id to create the data_src_addr */
+ if (is_zero_ether_addr(qedf->data_src_addr)) {
+ hton24(port_id, lport->port_id);
+ fc_fcoe_set_mac(mac, port_id);
+ qedf->ctlr.update_mac(lport, mac);
+ }
+ return qedf->data_src_addr;
+}
diff --git a/drivers/scsi/qedf/qedf_hsi.h b/drivers/scsi/qedf/qedf_hsi.h
new file mode 100644
index 0000000..953aa5e
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_hsi.h
@@ -0,0 +1,427 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#ifndef __QEDF_HSI__
+#define __QEDF_HSI__
+/*
+ * Add include to common target
+ */
+#include <linux/qed/common_hsi.h>
+
+/*
+ * Add include to common storage target
+ */
+#include <linux/qed/storage_common.h>
+
+/*
+ * Add include to common fcoe target for both eCore and protocol driver
+ */
+#include <linux/qed/fcoe_common.h>
+
+
+/*
+ * FCoE CQ element ABTS information
+ */
+struct fcoe_abts_info {
+ u8 r_ctl /* R_CTL in the ABTS response frame */;
+ u8 reserved0;
+ __le16 rx_id;
+ __le32 reserved2[2];
+ __le32 fc_payload[3] /* ABTS FC payload response frame */;
+};
+
+
+/*
+ * FCoE class type
+ */
+enum fcoe_class_type {
+ FCOE_TASK_CLASS_TYPE_3,
+ FCOE_TASK_CLASS_TYPE_2,
+ MAX_FCOE_CLASS_TYPE
+};
+
+
+/*
+ * FCoE CMDQ element control information
+ */
+struct fcoe_cmdqe_control {
+ __le16 conn_id;
+ u8 num_additional_cmdqes;
+ u8 cmdType;
+ /* true for ABTS request cmdqe. used in Target mode */
+#define FCOE_CMDQE_CONTROL_ABTSREQCMD_MASK 0x1
+#define FCOE_CMDQE_CONTROL_ABTSREQCMD_SHIFT 0
+#define FCOE_CMDQE_CONTROL_RESERVED1_MASK 0x7F
+#define FCOE_CMDQE_CONTROL_RESERVED1_SHIFT 1
+ u8 reserved2[4];
+};
+
+/*
+ * FCoE control + payload CMDQ element
+ */
+struct fcoe_cmdqe {
+ struct fcoe_cmdqe_control hdr;
+ u8 fc_header[24];
+ __le32 fcp_cmd_payload[8];
+};
+
+
+
+/*
+ * FCP RSP flags
+ */
+struct fcoe_fcp_rsp_flags {
+ u8 flags;
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID_SHIFT 0
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID_SHIFT 1
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER_SHIFT 2
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER_SHIFT 3
+#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ_SHIFT 4
+#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS_MASK 0x7
+#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS_SHIFT 5
+};
+
+/*
+ * FCoE CQ element response information
+ */
+struct fcoe_cqe_rsp_info {
+ struct fcoe_fcp_rsp_flags rsp_flags;
+ u8 scsi_status_code;
+ __le16 retry_delay_timer;
+ __le32 fcp_resid;
+ __le32 fcp_sns_len;
+ __le32 fcp_rsp_len;
+ __le16 rx_id;
+ u8 fw_error_flags;
+#define FCOE_CQE_RSP_INFO_FW_UNDERRUN_MASK 0x1 /* FW detected underrun */
+#define FCOE_CQE_RSP_INFO_FW_UNDERRUN_SHIFT 0
+#define FCOE_CQE_RSP_INFO_RESREVED_MASK 0x7F
+#define FCOE_CQE_RSP_INFO_RESREVED_SHIFT 1
+ u8 reserved;
+ __le32 fw_residual /* Residual bytes calculated by FW */;
+};
+
+/*
+ * FCoE CQ element Target completion information
+ */
+struct fcoe_cqe_target_info {
+ __le16 rx_id;
+ __le16 reserved0;
+ __le32 reserved1[5];
+};
+
+/*
+ * FCoE error/warning reporting entry
+ */
+struct fcoe_err_report_entry {
+ __le32 err_warn_bitmap_lo /* Error bitmap lower 32 bits */;
+ __le32 err_warn_bitmap_hi /* Error bitmap higher 32 bits */;
+ /* Buffer offset the beginning of the Sequence last transmitted */
+ __le32 tx_buf_off;
+ /* Buffer offset from the beginning of the Sequence last received */
+ __le32 rx_buf_off;
+ __le16 rx_id /* RX_ID of the associated task */;
+ __le16 reserved1;
+ __le32 reserved2;
+};
+
+/*
+ * FCoE CQ element middle path information
+ */
+struct fcoe_cqe_midpath_info {
+ __le32 data_placement_size;
+ __le16 rx_id;
+ __le16 reserved0;
+ __le32 reserved1[4];
+};
+
+/*
+ * FCoE CQ element unsolicited information
+ */
+struct fcoe_unsolic_info {
+ /* BD information: Physical address and opaque data */
+ struct scsi_bd bd_info;
+ __le16 conn_id /* Connection ID the frame is associated to */;
+ __le16 pkt_len /* Packet length */;
+ u8 reserved1[4];
+};
+
+/*
+ * FCoE warning reporting entry
+ */
+struct fcoe_warning_report_entry {
+ /* BD information: Physical address and opaque data */
+ struct scsi_bd bd_info;
+ /* Buffer offset the beginning of the Sequence last transmitted */
+ __le32 buf_off;
+ __le16 rx_id /* RX_ID of the associated task */;
+ __le16 reserved1;
+};
+
+/*
+ * FCoE CQ element information
+ */
+union fcoe_cqe_info {
+ struct fcoe_cqe_rsp_info rsp_info /* Response completion information */;
+ /* Target completion information */
+ struct fcoe_cqe_target_info target_info;
+ /* Error completion information */
+ struct fcoe_err_report_entry err_info;
+ struct fcoe_abts_info abts_info /* ABTS completion information */;
+ /* Middle path completion information */
+ struct fcoe_cqe_midpath_info midpath_info;
+ /* Unsolicited packet completion information */
+ struct fcoe_unsolic_info unsolic_info;
+ /* Warning completion information (Rec Tov expiration) */
+ struct fcoe_warning_report_entry warn_info;
+};
+
+/*
+ * FCoE CQ element
+ */
+struct fcoe_cqe {
+ __le32 cqe_data;
+ /* The task identifier (OX_ID) to be completed */
+#define FCOE_CQE_TASK_ID_MASK 0xFFFF
+#define FCOE_CQE_TASK_ID_SHIFT 0
+ /*
+ * The CQE type: 0x0 Indicating on a pending work request completion.
+ * 0x1 - Indicating on an unsolicited event notification. use enum
+ * fcoe_cqe_type (use enum fcoe_cqe_type)
+ */
+#define FCOE_CQE_CQE_TYPE_MASK 0xF
+#define FCOE_CQE_CQE_TYPE_SHIFT 16
+#define FCOE_CQE_RESERVED0_MASK 0xFFF
+#define FCOE_CQE_RESERVED0_SHIFT 20
+ __le16 reserved1;
+ __le16 fw_cq_prod;
+ union fcoe_cqe_info cqe_info;
+};
+
+
+
+
+
+
+/*
+ * FCoE CQE type
+ */
+enum fcoe_cqe_type {
+ /* solicited response on a R/W or middle-path SQE */
+ FCOE_GOOD_COMPLETION_CQE_TYPE,
+ FCOE_UNSOLIC_CQE_TYPE /* unsolicited packet, RQ consumed */,
+ FCOE_ERROR_DETECTION_CQE_TYPE /* timer expiration, validation error */,
+ FCOE_WARNING_CQE_TYPE /* rec_tov or rr_tov timer expiration */,
+ FCOE_EXCH_CLEANUP_CQE_TYPE /* task cleanup completed */,
+ FCOE_ABTS_CQE_TYPE /* ABTS received and task cleaned */,
+ FCOE_DUMMY_CQE_TYPE /* just increment SQ CONS */,
+ /* Task was completed wight after sending a pkt to the target */
+ FCOE_LOCAL_COMP_CQE_TYPE,
+ MAX_FCOE_CQE_TYPE
+};
+
+
+/*
+ * FCoE device type
+ */
+enum fcoe_device_type {
+ FCOE_TASK_DEV_TYPE_DISK,
+ FCOE_TASK_DEV_TYPE_TAPE,
+ MAX_FCOE_DEVICE_TYPE
+};
+
+
+
+
+/*
+ * FCoE fast path error codes
+ */
+enum fcoe_fp_error_warning_code {
+ FCOE_ERROR_CODE_XFER_OOO_RO /* XFER error codes */,
+ FCOE_ERROR_CODE_XFER_RO_NOT_ALIGNED,
+ FCOE_ERROR_CODE_XFER_NULL_BURST_LEN,
+ FCOE_ERROR_CODE_XFER_RO_GREATER_THAN_DATA2TRNS,
+ FCOE_ERROR_CODE_XFER_INVALID_PAYLOAD_SIZE,
+ FCOE_ERROR_CODE_XFER_TASK_TYPE_NOT_WRITE,
+ FCOE_ERROR_CODE_XFER_PEND_XFER_SET,
+ FCOE_ERROR_CODE_XFER_OPENED_SEQ,
+ FCOE_ERROR_CODE_XFER_FCTL,
+ FCOE_ERROR_CODE_FCP_RSP_BIDI_FLAGS_SET /* FCP RSP error codes */,
+ FCOE_ERROR_CODE_FCP_RSP_INVALID_LENGTH_FIELD,
+ FCOE_ERROR_CODE_FCP_RSP_INVALID_SNS_FIELD,
+ FCOE_ERROR_CODE_FCP_RSP_INVALID_PAYLOAD_SIZE,
+ FCOE_ERROR_CODE_FCP_RSP_PEND_XFER_SET,
+ FCOE_ERROR_CODE_FCP_RSP_OPENED_SEQ,
+ FCOE_ERROR_CODE_FCP_RSP_FCTL,
+ FCOE_ERROR_CODE_FCP_RSP_LAST_SEQ_RESET,
+ FCOE_ERROR_CODE_FCP_RSP_CONF_REQ_NOT_SUPPORTED_YET,
+ FCOE_ERROR_CODE_DATA_OOO_RO /* FCP DATA error codes */,
+ FCOE_ERROR_CODE_DATA_EXCEEDS_DEFINED_MAX_FRAME_SIZE,
+ FCOE_ERROR_CODE_DATA_EXCEEDS_DATA2TRNS,
+ FCOE_ERROR_CODE_DATA_SOFI3_SEQ_ACTIVE_SET,
+ FCOE_ERROR_CODE_DATA_SOFN_SEQ_ACTIVE_RESET,
+ FCOE_ERROR_CODE_DATA_EOFN_END_SEQ_SET,
+ FCOE_ERROR_CODE_DATA_EOFT_END_SEQ_RESET,
+ FCOE_ERROR_CODE_DATA_TASK_TYPE_NOT_READ,
+ FCOE_ERROR_CODE_DATA_FCTL_INITIATIR,
+ FCOE_ERROR_CODE_MIDPATH_INVALID_TYPE /* Middle path error codes */,
+ FCOE_ERROR_CODE_MIDPATH_SOFI3_SEQ_ACTIVE_SET,
+ FCOE_ERROR_CODE_MIDPATH_SOFN_SEQ_ACTIVE_RESET,
+ FCOE_ERROR_CODE_MIDPATH_EOFN_END_SEQ_SET,
+ FCOE_ERROR_CODE_MIDPATH_EOFT_END_SEQ_RESET,
+ FCOE_ERROR_CODE_MIDPATH_REPLY_FCTL,
+ FCOE_ERROR_CODE_MIDPATH_INVALID_REPLY,
+ FCOE_ERROR_CODE_MIDPATH_ELS_REPLY_RCTL,
+ FCOE_ERROR_CODE_COMMON_MIDDLE_FRAME_WITH_PAD /* Common error codes */,
+ FCOE_ERROR_CODE_COMMON_SEQ_INIT_IN_TCE,
+ FCOE_ERROR_CODE_COMMON_FC_HDR_RX_ID_MISMATCH,
+ FCOE_ERROR_CODE_COMMON_INCORRECT_SEQ_CNT,
+ FCOE_ERROR_CODE_COMMON_DATA_FC_HDR_FCP_TYPE_MISMATCH,
+ FCOE_ERROR_CODE_COMMON_DATA_NO_MORE_SGES,
+ FCOE_ERROR_CODE_COMMON_OPTIONAL_FC_HDR,
+ FCOE_ERROR_CODE_COMMON_READ_TCE_OX_ID_TOO_BIG,
+ FCOE_ERROR_CODE_COMMON_DATA_WAS_NOT_TRANSMITTED,
+ FCOE_ERROR_CODE_COMMON_TASK_DDF_RCTL_INFO_FIELD,
+ FCOE_ERROR_CODE_COMMON_TASK_INVALID_RCTL,
+ FCOE_ERROR_CODE_COMMON_TASK_RCTL_GENERAL_MISMATCH,
+ FCOE_ERROR_CODE_E_D_TOV_TIMER_EXPIRATION /* Timer error codes */,
+ FCOE_WARNING_CODE_REC_TOV_TIMER_EXPIRATION /* Timer error codes */,
+ FCOE_ERROR_CODE_RR_TOV_TIMER_EXPIRATION /* Timer error codes */,
+ /* ABTSrsp pckt arrived unexpected */
+ FCOE_ERROR_CODE_ABTS_REPLY_UNEXPECTED,
+ FCOE_ERROR_CODE_TARGET_MODE_FCP_RSP,
+ FCOE_ERROR_CODE_TARGET_MODE_FCP_XFER,
+ FCOE_ERROR_CODE_TARGET_MODE_DATA_TASK_TYPE_NOT_WRITE,
+ FCOE_ERROR_CODE_DATA_FCTL_TARGET,
+ FCOE_ERROR_CODE_TARGET_DATA_SIZE_NO_MATCH_XFER,
+ FCOE_ERROR_CODE_TARGET_DIF_CRC_CHECKSUM_ERROR,
+ FCOE_ERROR_CODE_TARGET_DIF_REF_TAG_ERROR,
+ FCOE_ERROR_CODE_TARGET_DIF_APP_TAG_ERROR,
+ MAX_FCOE_FP_ERROR_WARNING_CODE
+};
+
+
+/*
+ * FCoE RESPQ element
+ */
+struct fcoe_respqe {
+ __le16 ox_id /* OX_ID that is located in the FCP_RSP FC header */;
+ __le16 rx_id /* RX_ID that is located in the FCP_RSP FC header */;
+ __le32 additional_info;
+/* PARAM that is located in the FCP_RSP FC header */
+#define FCOE_RESPQE_PARAM_MASK 0xFFFFFF
+#define FCOE_RESPQE_PARAM_SHIFT 0
+/* Indication whther its Target-auto-rsp mode or not */
+#define FCOE_RESPQE_TARGET_AUTO_RSP_MASK 0xFF
+#define FCOE_RESPQE_TARGET_AUTO_RSP_SHIFT 24
+};
+
+
+/*
+ * FCoE slow path error codes
+ */
+enum fcoe_sp_error_code {
+ /* Error codes for Error Reporting in slow path flows */
+ FCOE_ERROR_CODE_SLOW_PATH_TOO_MANY_FUNCS,
+ FCOE_ERROR_SLOW_PATH_CODE_NO_LICENSE,
+ MAX_FCOE_SP_ERROR_CODE
+};
+
+
+/*
+ * FCoE SQE request type
+ */
+enum fcoe_sqe_request_type {
+ SEND_FCOE_CMD,
+ SEND_FCOE_MIDPATH,
+ SEND_FCOE_ABTS_REQUEST,
+ FCOE_EXCHANGE_CLEANUP,
+ FCOE_SEQUENCE_RECOVERY,
+ SEND_FCOE_XFER_RDY,
+ SEND_FCOE_RSP,
+ SEND_FCOE_RSP_WITH_SENSE_DATA,
+ SEND_FCOE_TARGET_DATA,
+ SEND_FCOE_INITIATOR_DATA,
+ /*
+ * Xfer Continuation (==1) ready to be sent. Previous XFERs data
+ * received successfully.
+ */
+ SEND_FCOE_XFER_CONTINUATION_RDY,
+ SEND_FCOE_TARGET_ABTS_RSP,
+ MAX_FCOE_SQE_REQUEST_TYPE
+};
+
+
+/*
+ * FCoE task TX state
+ */
+enum fcoe_task_tx_state {
+ /* Initiate state after driver has initialized the task */
+ FCOE_TASK_TX_STATE_NORMAL,
+ /* Updated by TX path after complete transmitting unsolicited packet */
+ FCOE_TASK_TX_STATE_UNSOLICITED_COMPLETED,
+ /*
+ * Updated by TX path after start processing the task requesting the
+ * cleanup/abort operation
+ */
+ FCOE_TASK_TX_STATE_CLEAN_REQ,
+ FCOE_TASK_TX_STATE_ABTS /* Updated by TX path during abort procedure */,
+ /* Updated by TX path during exchange cleanup procedure */
+ FCOE_TASK_TX_STATE_EXCLEANUP,
+ /*
+ * Updated by TX path during exchange cleanup continuation task
+ * procedure
+ */
+ FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_WRITE_CONT,
+ /* Updated by TX path during exchange cleanup first xfer procedure */
+ FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_WRITE,
+ /* Updated by TX path during exchange cleanup read task in Target */
+ FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_READ_OR_RSP,
+ /* Updated by TX path during target exchange cleanup procedure */
+ FCOE_TASK_TX_STATE_EXCLEANUP_TARGET_WRITE_LAST_CYCLE,
+ /* Updated by TX path during sequence recovery procedure */
+ FCOE_TASK_TX_STATE_SEQRECOVERY,
+ MAX_FCOE_TASK_TX_STATE
+};
+
+
+/*
+ * FCoE task type
+ */
+enum fcoe_task_type {
+ FCOE_TASK_TYPE_WRITE_INITIATOR,
+ FCOE_TASK_TYPE_READ_INITIATOR,
+ FCOE_TASK_TYPE_MIDPATH,
+ FCOE_TASK_TYPE_UNSOLICITED,
+ FCOE_TASK_TYPE_ABTS,
+ FCOE_TASK_TYPE_EXCHANGE_CLEANUP,
+ FCOE_TASK_TYPE_SEQUENCE_CLEANUP,
+ FCOE_TASK_TYPE_WRITE_TARGET,
+ FCOE_TASK_TYPE_READ_TARGET,
+ FCOE_TASK_TYPE_RSP,
+ FCOE_TASK_TYPE_RSP_SENSE_DATA,
+ FCOE_TASK_TYPE_ABTS_TARGET,
+ FCOE_TASK_TYPE_ENUM_SIZE,
+ MAX_FCOE_TASK_TYPE
+};
+
+struct scsi_glbl_queue_entry {
+ /* Start physical address for the RQ (receive queue) PBL. */
+ struct regpair rq_pbl_addr;
+ /* Start physical address for the CQ (completion queue) PBL. */
+ struct regpair cq_pbl_addr;
+ /* Start physical address for the CMDQ (command queue) PBL. */
+ struct regpair cmdq_pbl_addr;
+};
+
+#endif /* __QEDF_HSI__ */
diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c
new file mode 100644
index 0000000..f98a725
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_io.c
@@ -0,0 +1,2280 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include <linux/spinlock.h>
+#include <linux/vmalloc.h>
+#include "qedf.h"
+#include <scsi/scsi_tcq.h>
+
+void qedf_cmd_timer_set(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
+ unsigned int timer_msec)
+{
+ queue_delayed_work(qedf->timer_work_queue, &io_req->timeout_work,
+ msecs_to_jiffies(timer_msec));
+}
+
+static void qedf_cmd_timeout(struct work_struct *work)
+{
+
+ struct qedf_ioreq *io_req =
+ container_of(work, struct qedf_ioreq, timeout_work.work);
+ struct qedf_ctx *qedf = io_req->fcport->qedf;
+ struct qedf_rport *fcport = io_req->fcport;
+ u8 op = 0;
+
+ switch (io_req->cmd_type) {
+ case QEDF_ABTS:
+ QEDF_ERR((&qedf->dbg_ctx), "ABTS timeout, xid=0x%x.\n",
+ io_req->xid);
+ /* Cleanup timed out ABTS */
+ qedf_initiate_cleanup(io_req, true);
+ complete(&io_req->abts_done);
+
+ /*
+ * Need to call kref_put for reference taken when initiate_abts
+ * was called since abts_compl won't be called now that we've
+ * cleaned up the task.
+ */
+ kref_put(&io_req->refcount, qedf_release_cmd);
+
+ /*
+ * Now that the original I/O and the ABTS are complete see
+ * if we need to reconnect to the target.
+ */
+ qedf_restart_rport(fcport);
+ break;
+ case QEDF_ELS:
+ kref_get(&io_req->refcount);
+ /*
+ * Don't attempt to clean an ELS timeout as any subseqeunt
+ * ABTS or cleanup requests just hang. For now just free
+ * the resources of the original I/O and the RRQ
+ */
+ QEDF_ERR(&(qedf->dbg_ctx), "ELS timeout, xid=0x%x.\n",
+ io_req->xid);
+ io_req->event = QEDF_IOREQ_EV_ELS_TMO;
+ /* Call callback function to complete command */
+ if (io_req->cb_func && io_req->cb_arg) {
+ op = io_req->cb_arg->op;
+ io_req->cb_func(io_req->cb_arg);
+ io_req->cb_arg = NULL;
+ }
+ qedf_initiate_cleanup(io_req, true);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ break;
+ case QEDF_SEQ_CLEANUP:
+ QEDF_ERR(&(qedf->dbg_ctx), "Sequence cleanup timeout, "
+ "xid=0x%x.\n", io_req->xid);
+ qedf_initiate_cleanup(io_req, true);
+ io_req->event = QEDF_IOREQ_EV_ELS_TMO;
+ qedf_process_seq_cleanup_compl(qedf, NULL, io_req);
+ break;
+ default:
+ break;
+ }
+}
+
+void qedf_cmd_mgr_free(struct qedf_cmd_mgr *cmgr)
+{
+ struct io_bdt *bdt_info;
+ struct qedf_ctx *qedf = cmgr->qedf;
+ size_t bd_tbl_sz;
+ u16 min_xid = QEDF_MIN_XID;
+ u16 max_xid = (FCOE_PARAMS_NUM_TASKS - 1);
+ int num_ios;
+ int i;
+ struct qedf_ioreq *io_req;
+
+ num_ios = max_xid - min_xid + 1;
+
+ /* Free fcoe_bdt_ctx structures */
+ if (!cmgr->io_bdt_pool)
+ goto free_cmd_pool;
+
+ bd_tbl_sz = QEDF_MAX_BDS_PER_CMD * sizeof(struct fcoe_sge);
+ for (i = 0; i < num_ios; i++) {
+ bdt_info = cmgr->io_bdt_pool[i];
+ if (bdt_info->bd_tbl) {
+ dma_free_coherent(&qedf->pdev->dev, bd_tbl_sz,
+ bdt_info->bd_tbl, bdt_info->bd_tbl_dma);
+ bdt_info->bd_tbl = NULL;
+ }
+ }
+
+ /* Destroy io_bdt pool */
+ for (i = 0; i < num_ios; i++) {
+ kfree(cmgr->io_bdt_pool[i]);
+ cmgr->io_bdt_pool[i] = NULL;
+ }
+
+ kfree(cmgr->io_bdt_pool);
+ cmgr->io_bdt_pool = NULL;
+
+free_cmd_pool:
+
+ for (i = 0; i < num_ios; i++) {
+ io_req = &cmgr->cmds[i];
+ /* Make sure we free per command sense buffer */
+ if (io_req->sense_buffer)
+ dma_free_coherent(&qedf->pdev->dev,
+ QEDF_SCSI_SENSE_BUFFERSIZE, io_req->sense_buffer,
+ io_req->sense_buffer_dma);
+ cancel_delayed_work_sync(&io_req->rrq_work);
+ }
+
+ /* Free command manager itself */
+ vfree(cmgr);
+}
+
+static void qedf_handle_rrq(struct work_struct *work)
+{
+ struct qedf_ioreq *io_req =
+ container_of(work, struct qedf_ioreq, rrq_work.work);
+
+ qedf_send_rrq(io_req);
+
+}
+
+struct qedf_cmd_mgr *qedf_cmd_mgr_alloc(struct qedf_ctx *qedf)
+{
+ struct qedf_cmd_mgr *cmgr;
+ struct io_bdt *bdt_info;
+ struct qedf_ioreq *io_req;
+ u16 xid;
+ int i;
+ int num_ios;
+ u16 min_xid = QEDF_MIN_XID;
+ u16 max_xid = (FCOE_PARAMS_NUM_TASKS - 1);
+
+ /* Make sure num_queues is already set before calling this function */
+ if (!qedf->num_queues) {
+ QEDF_ERR(&(qedf->dbg_ctx), "num_queues is not set.\n");
+ return NULL;
+ }
+
+ if (max_xid <= min_xid || max_xid == FC_XID_UNKNOWN) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Invalid min_xid 0x%x and "
+ "max_xid 0x%x.\n", min_xid, max_xid);
+ return NULL;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "min xid 0x%x, max xid "
+ "0x%x.\n", min_xid, max_xid);
+
+ num_ios = max_xid - min_xid + 1;
+
+ cmgr = vzalloc(sizeof(struct qedf_cmd_mgr));
+ if (!cmgr) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Failed to alloc cmd mgr.\n");
+ return NULL;
+ }
+
+ cmgr->qedf = qedf;
+ spin_lock_init(&cmgr->lock);
+
+ /*
+ * Initialize list of qedf_ioreq.
+ */
+ xid = QEDF_MIN_XID;
+
+ for (i = 0; i < num_ios; i++) {
+ io_req = &cmgr->cmds[i];
+ INIT_DELAYED_WORK(&io_req->timeout_work, qedf_cmd_timeout);
+
+ io_req->xid = xid++;
+
+ INIT_DELAYED_WORK(&io_req->rrq_work, qedf_handle_rrq);
+
+ /* Allocate DMA memory to hold sense buffer */
+ io_req->sense_buffer = dma_alloc_coherent(&qedf->pdev->dev,
+ QEDF_SCSI_SENSE_BUFFERSIZE, &io_req->sense_buffer_dma,
+ GFP_KERNEL);
+ if (!io_req->sense_buffer)
+ goto mem_err;
+ }
+
+ /* Allocate pool of io_bdts - one for each qedf_ioreq */
+ cmgr->io_bdt_pool = kmalloc_array(num_ios, sizeof(struct io_bdt *),
+ GFP_KERNEL);
+
+ if (!cmgr->io_bdt_pool) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Failed to alloc io_bdt_pool.\n");
+ goto mem_err;
+ }
+
+ for (i = 0; i < num_ios; i++) {
+ cmgr->io_bdt_pool[i] = kmalloc(sizeof(struct io_bdt),
+ GFP_KERNEL);
+ if (!cmgr->io_bdt_pool[i]) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Failed to alloc "
+ "io_bdt_pool[%d].\n", i);
+ goto mem_err;
+ }
+ }
+
+ for (i = 0; i < num_ios; i++) {
+ bdt_info = cmgr->io_bdt_pool[i];
+ bdt_info->bd_tbl = dma_alloc_coherent(&qedf->pdev->dev,
+ QEDF_MAX_BDS_PER_CMD * sizeof(struct fcoe_sge),
+ &bdt_info->bd_tbl_dma, GFP_KERNEL);
+ if (!bdt_info->bd_tbl) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Failed to alloc "
+ "bdt_tbl[%d].\n", i);
+ goto mem_err;
+ }
+ }
+ atomic_set(&cmgr->free_list_cnt, num_ios);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "cmgr->free_list_cnt=%d.\n",
+ atomic_read(&cmgr->free_list_cnt));
+
+ return cmgr;
+
+mem_err:
+ qedf_cmd_mgr_free(cmgr);
+ return NULL;
+}
+
+struct qedf_ioreq *qedf_alloc_cmd(struct qedf_rport *fcport, u8 cmd_type)
+{
+ struct qedf_ctx *qedf = fcport->qedf;
+ struct qedf_cmd_mgr *cmd_mgr = qedf->cmd_mgr;
+ struct qedf_ioreq *io_req = NULL;
+ struct io_bdt *bd_tbl;
+ u16 xid;
+ uint32_t free_sqes;
+ int i;
+ unsigned long flags;
+
+ free_sqes = atomic_read(&fcport->free_sqes);
+
+ if (!free_sqes) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Returning NULL, free_sqes=%d.\n ",
+ free_sqes);
+ goto out_failed;
+ }
+
+ /* Limit the number of outstanding R/W tasks */
+ if ((atomic_read(&fcport->num_active_ios) >=
+ NUM_RW_TASKS_PER_CONNECTION)) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Returning NULL, num_active_ios=%d.\n",
+ atomic_read(&fcport->num_active_ios));
+ goto out_failed;
+ }
+
+ /* Limit global TIDs certain tasks */
+ if (atomic_read(&cmd_mgr->free_list_cnt) <= GBL_RSVD_TASKS) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Returning NULL, free_list_cnt=%d.\n",
+ atomic_read(&cmd_mgr->free_list_cnt));
+ goto out_failed;
+ }
+
+ spin_lock_irqsave(&cmd_mgr->lock, flags);
+ for (i = 0; i < FCOE_PARAMS_NUM_TASKS; i++) {
+ io_req = &cmd_mgr->cmds[cmd_mgr->idx];
+ cmd_mgr->idx++;
+ if (cmd_mgr->idx == FCOE_PARAMS_NUM_TASKS)
+ cmd_mgr->idx = 0;
+
+ /* Check to make sure command was previously freed */
+ if (!test_bit(QEDF_CMD_OUTSTANDING, &io_req->flags))
+ break;
+ }
+
+ if (i == FCOE_PARAMS_NUM_TASKS) {
+ spin_unlock_irqrestore(&cmd_mgr->lock, flags);
+ goto out_failed;
+ }
+
+ set_bit(QEDF_CMD_OUTSTANDING, &io_req->flags);
+ spin_unlock_irqrestore(&cmd_mgr->lock, flags);
+
+ atomic_inc(&fcport->num_active_ios);
+ atomic_dec(&fcport->free_sqes);
+ xid = io_req->xid;
+ atomic_dec(&cmd_mgr->free_list_cnt);
+
+ io_req->cmd_mgr = cmd_mgr;
+ io_req->fcport = fcport;
+
+ /* Hold the io_req against deletion */
+ kref_init(&io_req->refcount);
+
+ /* Bind io_bdt for this io_req */
+ /* Have a static link between io_req and io_bdt_pool */
+ bd_tbl = io_req->bd_tbl = cmd_mgr->io_bdt_pool[xid];
+ if (bd_tbl == NULL) {
+ QEDF_ERR(&(qedf->dbg_ctx), "bd_tbl is NULL, xid=%x.\n", xid);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ goto out_failed;
+ }
+ bd_tbl->io_req = io_req;
+ io_req->cmd_type = cmd_type;
+
+ /* Reset sequence offset data */
+ io_req->rx_buf_off = 0;
+ io_req->tx_buf_off = 0;
+ io_req->rx_id = 0xffff; /* No OX_ID */
+
+ return io_req;
+
+out_failed:
+ /* Record failure for stats and return NULL to caller */
+ qedf->alloc_failures++;
+ return NULL;
+}
+
+static void qedf_free_mp_resc(struct qedf_ioreq *io_req)
+{
+ struct qedf_mp_req *mp_req = &(io_req->mp_req);
+ struct qedf_ctx *qedf = io_req->fcport->qedf;
+ uint64_t sz = sizeof(struct fcoe_sge);
+
+ /* clear tm flags */
+ mp_req->tm_flags = 0;
+ if (mp_req->mp_req_bd) {
+ dma_free_coherent(&qedf->pdev->dev, sz,
+ mp_req->mp_req_bd, mp_req->mp_req_bd_dma);
+ mp_req->mp_req_bd = NULL;
+ }
+ if (mp_req->mp_resp_bd) {
+ dma_free_coherent(&qedf->pdev->dev, sz,
+ mp_req->mp_resp_bd, mp_req->mp_resp_bd_dma);
+ mp_req->mp_resp_bd = NULL;
+ }
+ if (mp_req->req_buf) {
+ dma_free_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
+ mp_req->req_buf, mp_req->req_buf_dma);
+ mp_req->req_buf = NULL;
+ }
+ if (mp_req->resp_buf) {
+ dma_free_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
+ mp_req->resp_buf, mp_req->resp_buf_dma);
+ mp_req->resp_buf = NULL;
+ }
+}
+
+void qedf_release_cmd(struct kref *ref)
+{
+ struct qedf_ioreq *io_req =
+ container_of(ref, struct qedf_ioreq, refcount);
+ struct qedf_cmd_mgr *cmd_mgr = io_req->cmd_mgr;
+ struct qedf_rport *fcport = io_req->fcport;
+
+ if (io_req->cmd_type == QEDF_ELS ||
+ io_req->cmd_type == QEDF_TASK_MGMT_CMD)
+ qedf_free_mp_resc(io_req);
+
+ atomic_inc(&cmd_mgr->free_list_cnt);
+ atomic_dec(&fcport->num_active_ios);
+ if (atomic_read(&fcport->num_active_ios) < 0)
+ QEDF_WARN(&(fcport->qedf->dbg_ctx), "active_ios < 0.\n");
+
+ /* Increment task retry identifier now that the request is released */
+ io_req->task_retry_identifier++;
+
+ clear_bit(QEDF_CMD_OUTSTANDING, &io_req->flags);
+}
+
+static int qedf_split_bd(struct qedf_ioreq *io_req, u64 addr, int sg_len,
+ int bd_index)
+{
+ struct fcoe_sge *bd = io_req->bd_tbl->bd_tbl;
+ int frag_size, sg_frags;
+
+ sg_frags = 0;
+ while (sg_len) {
+ if (sg_len > QEDF_BD_SPLIT_SZ)
+ frag_size = QEDF_BD_SPLIT_SZ;
+ else
+ frag_size = sg_len;
+ bd[bd_index + sg_frags].sge_addr.lo = U64_LO(addr);
+ bd[bd_index + sg_frags].sge_addr.hi = U64_HI(addr);
+ bd[bd_index + sg_frags].size = (uint16_t)frag_size;
+
+ addr += (u64)frag_size;
+ sg_frags++;
+ sg_len -= frag_size;
+ }
+ return sg_frags;
+}
+
+static int qedf_map_sg(struct qedf_ioreq *io_req)
+{
+ struct scsi_cmnd *sc = io_req->sc_cmd;
+ struct Scsi_Host *host = sc->device->host;
+ struct fc_lport *lport = shost_priv(host);
+ struct qedf_ctx *qedf = lport_priv(lport);
+ struct fcoe_sge *bd = io_req->bd_tbl->bd_tbl;
+ struct scatterlist *sg;
+ int byte_count = 0;
+ int sg_count = 0;
+ int bd_count = 0;
+ int sg_frags;
+ unsigned int sg_len;
+ u64 addr, end_addr;
+ int i;
+
+ sg_count = dma_map_sg(&qedf->pdev->dev, scsi_sglist(sc),
+ scsi_sg_count(sc), sc->sc_data_direction);
+
+ sg = scsi_sglist(sc);
+
+ /*
+ * New condition to send single SGE as cached-SGL with length less
+ * than 64k.
+ */
+ if ((sg_count == 1) && (sg_dma_len(sg) <=
+ QEDF_MAX_SGLEN_FOR_CACHESGL)) {
+ sg_len = sg_dma_len(sg);
+ addr = (u64)sg_dma_address(sg);
+
+ bd[bd_count].sge_addr.lo = (addr & 0xffffffff);
+ bd[bd_count].sge_addr.hi = (addr >> 32);
+ bd[bd_count].size = (u16)sg_len;
+
+ return ++bd_count;
+ }
+
+ scsi_for_each_sg(sc, sg, sg_count, i) {
+ sg_len = sg_dma_len(sg);
+ addr = (u64)sg_dma_address(sg);
+ end_addr = (u64)(addr + sg_len);
+
+ /*
+ * First s/g element in the list so check if the end_addr
+ * is paged aligned. Also check to make sure the length is
+ * at least page size.
+ */
+ if ((i == 0) && (sg_count > 1) &&
+ ((end_addr % QEDF_PAGE_SIZE) ||
+ sg_len < QEDF_PAGE_SIZE))
+ io_req->use_slowpath = true;
+ /*
+ * Last s/g element so check if the start address is paged
+ * aligned.
+ */
+ else if ((i == (sg_count - 1)) && (sg_count > 1) &&
+ (addr % QEDF_PAGE_SIZE))
+ io_req->use_slowpath = true;
+ /*
+ * Intermediate s/g element so check if start and end address
+ * is page aligned.
+ */
+ else if ((i != 0) && (i != (sg_count - 1)) &&
+ ((addr % QEDF_PAGE_SIZE) || (end_addr % QEDF_PAGE_SIZE)))
+ io_req->use_slowpath = true;
+
+ if (sg_len > QEDF_MAX_BD_LEN) {
+ sg_frags = qedf_split_bd(io_req, addr, sg_len,
+ bd_count);
+ } else {
+ sg_frags = 1;
+ bd[bd_count].sge_addr.lo = U64_LO(addr);
+ bd[bd_count].sge_addr.hi = U64_HI(addr);
+ bd[bd_count].size = (uint16_t)sg_len;
+ }
+
+ bd_count += sg_frags;
+ byte_count += sg_len;
+ }
+
+ if (byte_count != scsi_bufflen(sc))
+ QEDF_ERR(&(qedf->dbg_ctx), "byte_count = %d != "
+ "scsi_bufflen = %d, task_id = 0x%x.\n", byte_count,
+ scsi_bufflen(sc), io_req->xid);
+
+ return bd_count;
+}
+
+static int qedf_build_bd_list_from_sg(struct qedf_ioreq *io_req)
+{
+ struct scsi_cmnd *sc = io_req->sc_cmd;
+ struct fcoe_sge *bd = io_req->bd_tbl->bd_tbl;
+ int bd_count;
+
+ if (scsi_sg_count(sc)) {
+ bd_count = qedf_map_sg(io_req);
+ if (bd_count == 0)
+ return -ENOMEM;
+ } else {
+ bd_count = 0;
+ bd[0].sge_addr.lo = bd[0].sge_addr.hi = 0;
+ bd[0].size = 0;
+ }
+ io_req->bd_tbl->bd_valid = bd_count;
+
+ return 0;
+}
+
+static void qedf_build_fcp_cmnd(struct qedf_ioreq *io_req,
+ struct fcp_cmnd *fcp_cmnd)
+{
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+
+ /* fcp_cmnd is 32 bytes */
+ memset(fcp_cmnd, 0, FCP_CMND_LEN);
+
+ /* 8 bytes: SCSI LUN info */
+ int_to_scsilun(sc_cmd->device->lun,
+ (struct scsi_lun *)&fcp_cmnd->fc_lun);
+
+ /* 4 bytes: flag info */
+ fcp_cmnd->fc_pri_ta = 0;
+ fcp_cmnd->fc_tm_flags = io_req->mp_req.tm_flags;
+ fcp_cmnd->fc_flags = io_req->io_req_flags;
+ fcp_cmnd->fc_cmdref = 0;
+
+ /* Populate data direction */
+ if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
+ fcp_cmnd->fc_flags |= FCP_CFL_WRDATA;
+ else if (sc_cmd->sc_data_direction == DMA_FROM_DEVICE)
+ fcp_cmnd->fc_flags |= FCP_CFL_RDDATA;
+
+ fcp_cmnd->fc_pri_ta = FCP_PTA_SIMPLE;
+
+ /* 16 bytes: CDB information */
+ memcpy(fcp_cmnd->fc_cdb, sc_cmd->cmnd, sc_cmd->cmd_len);
+
+ /* 4 bytes: FCP data length */
+ fcp_cmnd->fc_dl = htonl(io_req->data_xfer_len);
+
+}
+
+static void qedf_init_task(struct qedf_rport *fcport, struct fc_lport *lport,
+ struct qedf_ioreq *io_req, u32 *ptu_invalidate,
+ struct fcoe_task_context *task_ctx)
+{
+ enum fcoe_task_type task_type;
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct io_bdt *bd_tbl = io_req->bd_tbl;
+ union fcoe_data_desc_ctx *data_desc;
+ u32 *fcp_cmnd;
+ u32 tmp_fcp_cmnd[8];
+ int cnt, i;
+ int bd_count;
+ struct qedf_ctx *qedf = fcport->qedf;
+ uint16_t cq_idx = smp_processor_id() % qedf->num_queues;
+ u8 tmp_sgl_mode = 0;
+ u8 mst_sgl_mode = 0;
+
+ memset(task_ctx, 0, sizeof(struct fcoe_task_context));
+ io_req->task = task_ctx;
+
+ if (sc_cmd->sc_data_direction == DMA_TO_DEVICE)
+ task_type = FCOE_TASK_TYPE_WRITE_INITIATOR;
+ else
+ task_type = FCOE_TASK_TYPE_READ_INITIATOR;
+
+ /* Y Storm context */
+ task_ctx->ystorm_st_context.expect_first_xfer = 1;
+ task_ctx->ystorm_st_context.data_2_trns_rem = io_req->data_xfer_len;
+ /* Check if this is required */
+ task_ctx->ystorm_st_context.ox_id = io_req->xid;
+ task_ctx->ystorm_st_context.task_rety_identifier =
+ io_req->task_retry_identifier;
+
+ /* T Storm ag context */
+ SET_FIELD(task_ctx->tstorm_ag_context.flags0,
+ TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE, PROTOCOLID_FCOE);
+ task_ctx->tstorm_ag_context.icid = (u16)fcport->fw_cid;
+
+ /* T Storm st context */
+ SET_FIELD(task_ctx->tstorm_st_context.read_write.flags,
+ FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME,
+ 1);
+ task_ctx->tstorm_st_context.read_write.rx_id = 0xffff;
+
+ task_ctx->tstorm_st_context.read_only.dev_type =
+ FCOE_TASK_DEV_TYPE_DISK;
+ task_ctx->tstorm_st_context.read_only.conf_supported = 0;
+ task_ctx->tstorm_st_context.read_only.cid = fcport->fw_cid;
+
+ /* Completion queue for response. */
+ task_ctx->tstorm_st_context.read_only.glbl_q_num = cq_idx;
+ task_ctx->tstorm_st_context.read_only.fcp_cmd_trns_size =
+ io_req->data_xfer_len;
+ task_ctx->tstorm_st_context.read_write.e_d_tov_exp_timeout_val =
+ lport->e_d_tov;
+
+ task_ctx->ustorm_ag_context.global_cq_num = cq_idx;
+ io_req->fp_idx = cq_idx;
+
+ bd_count = bd_tbl->bd_valid;
+ if (task_type == FCOE_TASK_TYPE_WRITE_INITIATOR) {
+ /* Setup WRITE task */
+ struct fcoe_sge *fcoe_bd_tbl = bd_tbl->bd_tbl;
+
+ task_ctx->ystorm_st_context.task_type =
+ FCOE_TASK_TYPE_WRITE_INITIATOR;
+ data_desc = &task_ctx->ystorm_st_context.data_desc;
+
+ if (io_req->use_slowpath) {
+ SET_FIELD(task_ctx->ystorm_st_context.sgl_mode,
+ YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE,
+ FCOE_SLOW_SGL);
+ data_desc->slow.base_sgl_addr.lo =
+ U64_LO(bd_tbl->bd_tbl_dma);
+ data_desc->slow.base_sgl_addr.hi =
+ U64_HI(bd_tbl->bd_tbl_dma);
+ data_desc->slow.remainder_num_sges = bd_count;
+ data_desc->slow.curr_sge_off = 0;
+ data_desc->slow.curr_sgl_index = 0;
+ qedf->slow_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_SLOW_SGE;
+ } else {
+ SET_FIELD(task_ctx->ystorm_st_context.sgl_mode,
+ YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE,
+ (bd_count <= 4) ? (enum fcoe_sgl_mode)bd_count :
+ FCOE_MUL_FAST_SGES);
+
+ if (bd_count == 1) {
+ data_desc->single_sge.sge_addr.lo =
+ fcoe_bd_tbl->sge_addr.lo;
+ data_desc->single_sge.sge_addr.hi =
+ fcoe_bd_tbl->sge_addr.hi;
+ data_desc->single_sge.size =
+ fcoe_bd_tbl->size;
+ data_desc->single_sge.is_valid_sge = 0;
+ qedf->single_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_SINGLE_SGE;
+ } else {
+ data_desc->fast.sgl_start_addr.lo =
+ U64_LO(bd_tbl->bd_tbl_dma);
+ data_desc->fast.sgl_start_addr.hi =
+ U64_HI(bd_tbl->bd_tbl_dma);
+ data_desc->fast.sgl_byte_offset =
+ data_desc->fast.sgl_start_addr.lo &
+ (QEDF_PAGE_SIZE - 1);
+ if (data_desc->fast.sgl_byte_offset > 0)
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "byte_offset=%u for xid=0x%x.\n",
+ io_req->xid,
+ data_desc->fast.sgl_byte_offset);
+ data_desc->fast.task_reuse_cnt =
+ io_req->reuse_count;
+ io_req->reuse_count++;
+ if (io_req->reuse_count == QEDF_MAX_REUSE) {
+ *ptu_invalidate = 1;
+ io_req->reuse_count = 0;
+ }
+ qedf->fast_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_FAST_SGE;
+ }
+ }
+
+ /* T Storm context */
+ task_ctx->tstorm_st_context.read_only.task_type =
+ FCOE_TASK_TYPE_WRITE_INITIATOR;
+
+ /* M Storm context */
+ tmp_sgl_mode = GET_FIELD(task_ctx->ystorm_st_context.sgl_mode,
+ YSTORM_FCOE_TASK_ST_CTX_TX_SGL_MODE);
+ SET_FIELD(task_ctx->mstorm_st_context.non_fp.tx_rx_sgl_mode,
+ FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_TX_SGL_MODE,
+ tmp_sgl_mode);
+
+ } else {
+ /* Setup READ task */
+
+ /* M Storm context */
+ struct fcoe_sge *fcoe_bd_tbl = bd_tbl->bd_tbl;
+
+ data_desc = &task_ctx->mstorm_st_context.fp.data_desc;
+ task_ctx->mstorm_st_context.fp.data_2_trns_rem =
+ io_req->data_xfer_len;
+
+ if (io_req->use_slowpath) {
+ SET_FIELD(
+ task_ctx->mstorm_st_context.non_fp.tx_rx_sgl_mode,
+ FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RX_SGL_MODE,
+ FCOE_SLOW_SGL);
+ data_desc->slow.base_sgl_addr.lo =
+ U64_LO(bd_tbl->bd_tbl_dma);
+ data_desc->slow.base_sgl_addr.hi =
+ U64_HI(bd_tbl->bd_tbl_dma);
+ data_desc->slow.remainder_num_sges =
+ bd_count;
+ data_desc->slow.curr_sge_off = 0;
+ data_desc->slow.curr_sgl_index = 0;
+ qedf->slow_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_SLOW_SGE;
+ } else {
+ SET_FIELD(
+ task_ctx->mstorm_st_context.non_fp.tx_rx_sgl_mode,
+ FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RX_SGL_MODE,
+ (bd_count <= 4) ? (enum fcoe_sgl_mode)bd_count :
+ FCOE_MUL_FAST_SGES);
+
+ if (bd_count == 1) {
+ data_desc->single_sge.sge_addr.lo =
+ fcoe_bd_tbl->sge_addr.lo;
+ data_desc->single_sge.sge_addr.hi =
+ fcoe_bd_tbl->sge_addr.hi;
+ data_desc->single_sge.size =
+ fcoe_bd_tbl->size;
+ data_desc->single_sge.is_valid_sge = 0;
+ qedf->single_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_SINGLE_SGE;
+ } else {
+ data_desc->fast.sgl_start_addr.lo =
+ U64_LO(bd_tbl->bd_tbl_dma);
+ data_desc->fast.sgl_start_addr.hi =
+ U64_HI(bd_tbl->bd_tbl_dma);
+ data_desc->fast.sgl_byte_offset = 0;
+ data_desc->fast.task_reuse_cnt =
+ io_req->reuse_count;
+ io_req->reuse_count++;
+ if (io_req->reuse_count == QEDF_MAX_REUSE) {
+ *ptu_invalidate = 1;
+ io_req->reuse_count = 0;
+ }
+ qedf->fast_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_FAST_SGE;
+ }
+ }
+
+ /* Y Storm context */
+ task_ctx->ystorm_st_context.expect_first_xfer = 0;
+ task_ctx->ystorm_st_context.task_type =
+ FCOE_TASK_TYPE_READ_INITIATOR;
+
+ /* T Storm context */
+ task_ctx->tstorm_st_context.read_only.task_type =
+ FCOE_TASK_TYPE_READ_INITIATOR;
+ mst_sgl_mode = GET_FIELD(
+ task_ctx->mstorm_st_context.non_fp.tx_rx_sgl_mode,
+ FCOE_MSTORM_FCOE_TASK_ST_CTX_NON_FP_RX_SGL_MODE);
+ SET_FIELD(task_ctx->tstorm_st_context.read_write.flags,
+ FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_RX_SGL_MODE,
+ mst_sgl_mode);
+ }
+
+ /* fill FCP_CMND IU */
+ fcp_cmnd = (u32 *)task_ctx->ystorm_st_context.tx_info_union.fcp_cmd_payload.opaque;
+ qedf_build_fcp_cmnd(io_req, (struct fcp_cmnd *)&tmp_fcp_cmnd);
+
+ /* Swap fcp_cmnd since FC is big endian */
+ cnt = sizeof(struct fcp_cmnd) / sizeof(u32);
+
+ for (i = 0; i < cnt; i++) {
+ *fcp_cmnd = cpu_to_be32(tmp_fcp_cmnd[i]);
+ fcp_cmnd++;
+ }
+
+ /* M Storm context - Sense buffer */
+ task_ctx->mstorm_st_context.non_fp.rsp_buf_addr.lo =
+ U64_LO(io_req->sense_buffer_dma);
+ task_ctx->mstorm_st_context.non_fp.rsp_buf_addr.hi =
+ U64_HI(io_req->sense_buffer_dma);
+}
+
+void qedf_init_mp_task(struct qedf_ioreq *io_req,
+ struct fcoe_task_context *task_ctx)
+{
+ struct qedf_mp_req *mp_req = &(io_req->mp_req);
+ struct qedf_rport *fcport = io_req->fcport;
+ struct qedf_ctx *qedf = io_req->fcport->qedf;
+ struct fc_frame_header *fc_hdr;
+ enum fcoe_task_type task_type = 0;
+ union fcoe_data_desc_ctx *data_desc;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Initializing MP task "
+ "for cmd_type = %d\n", io_req->cmd_type);
+
+ qedf->control_requests++;
+
+ /* Obtain task_type */
+ if ((io_req->cmd_type == QEDF_TASK_MGMT_CMD) ||
+ (io_req->cmd_type == QEDF_ELS)) {
+ task_type = FCOE_TASK_TYPE_MIDPATH;
+ } else if (io_req->cmd_type == QEDF_ABTS) {
+ task_type = FCOE_TASK_TYPE_ABTS;
+ }
+
+ memset(task_ctx, 0, sizeof(struct fcoe_task_context));
+
+ /* Setup the task from io_req for easy reference */
+ io_req->task = task_ctx;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "task type = %d\n",
+ task_type);
+
+ /* YSTORM only */
+ {
+ /* Initialize YSTORM task context */
+ struct fcoe_tx_mid_path_params *task_fc_hdr =
+ &task_ctx->ystorm_st_context.tx_info_union.tx_params.mid_path;
+ memset(task_fc_hdr, 0, sizeof(struct fcoe_tx_mid_path_params));
+ task_ctx->ystorm_st_context.task_rety_identifier =
+ io_req->task_retry_identifier;
+
+ /* Init SGL parameters */
+ if ((task_type == FCOE_TASK_TYPE_MIDPATH) ||
+ (task_type == FCOE_TASK_TYPE_UNSOLICITED)) {
+ data_desc = &task_ctx->ystorm_st_context.data_desc;
+ data_desc->slow.base_sgl_addr.lo =
+ U64_LO(mp_req->mp_req_bd_dma);
+ data_desc->slow.base_sgl_addr.hi =
+ U64_HI(mp_req->mp_req_bd_dma);
+ data_desc->slow.remainder_num_sges = 1;
+ data_desc->slow.curr_sge_off = 0;
+ data_desc->slow.curr_sgl_index = 0;
+ }
+
+ fc_hdr = &(mp_req->req_fc_hdr);
+ if (task_type == FCOE_TASK_TYPE_MIDPATH) {
+ fc_hdr->fh_ox_id = io_req->xid;
+ fc_hdr->fh_rx_id = htons(0xffff);
+ } else if (task_type == FCOE_TASK_TYPE_UNSOLICITED) {
+ fc_hdr->fh_rx_id = io_req->xid;
+ }
+
+ /* Fill FC Header into middle path buffer */
+ task_fc_hdr->parameter = fc_hdr->fh_parm_offset;
+ task_fc_hdr->r_ctl = fc_hdr->fh_r_ctl;
+ task_fc_hdr->type = fc_hdr->fh_type;
+ task_fc_hdr->cs_ctl = fc_hdr->fh_cs_ctl;
+ task_fc_hdr->df_ctl = fc_hdr->fh_df_ctl;
+ task_fc_hdr->rx_id = fc_hdr->fh_rx_id;
+ task_fc_hdr->ox_id = fc_hdr->fh_ox_id;
+
+ task_ctx->ystorm_st_context.data_2_trns_rem =
+ io_req->data_xfer_len;
+ task_ctx->ystorm_st_context.task_type = task_type;
+ }
+
+ /* TSTORM ONLY */
+ {
+ task_ctx->tstorm_ag_context.icid = (u16)fcport->fw_cid;
+ task_ctx->tstorm_st_context.read_only.cid = fcport->fw_cid;
+ /* Always send middle-path repsonses on CQ #0 */
+ task_ctx->tstorm_st_context.read_only.glbl_q_num = 0;
+ io_req->fp_idx = 0;
+ SET_FIELD(task_ctx->tstorm_ag_context.flags0,
+ TSTORM_FCOE_TASK_AG_CTX_CONNECTION_TYPE,
+ PROTOCOLID_FCOE);
+ task_ctx->tstorm_st_context.read_only.task_type = task_type;
+ SET_FIELD(task_ctx->tstorm_st_context.read_write.flags,
+ FCOE_TSTORM_FCOE_TASK_ST_CTX_READ_WRITE_EXP_FIRST_FRAME,
+ 1);
+ task_ctx->tstorm_st_context.read_write.rx_id = 0xffff;
+ }
+
+ /* MSTORM only */
+ {
+ if (task_type == FCOE_TASK_TYPE_MIDPATH) {
+ /* Initialize task context */
+ data_desc = &task_ctx->mstorm_st_context.fp.data_desc;
+
+ /* Set cache sges address and length */
+ data_desc->slow.base_sgl_addr.lo =
+ U64_LO(mp_req->mp_resp_bd_dma);
+ data_desc->slow.base_sgl_addr.hi =
+ U64_HI(mp_req->mp_resp_bd_dma);
+ data_desc->slow.remainder_num_sges = 1;
+ data_desc->slow.curr_sge_off = 0;
+ data_desc->slow.curr_sgl_index = 0;
+
+ /*
+ * Also need to fil in non-fastpath response address
+ * for middle path commands.
+ */
+ task_ctx->mstorm_st_context.non_fp.rsp_buf_addr.lo =
+ U64_LO(mp_req->mp_resp_bd_dma);
+ task_ctx->mstorm_st_context.non_fp.rsp_buf_addr.hi =
+ U64_HI(mp_req->mp_resp_bd_dma);
+ }
+ }
+
+ /* USTORM ONLY */
+ {
+ task_ctx->ustorm_ag_context.global_cq_num = 0;
+ }
+
+ /* I/O stats. Middle path commands always use slow SGEs */
+ qedf->slow_sge_ios++;
+ io_req->sge_type = QEDF_IOREQ_SLOW_SGE;
+}
+
+void qedf_add_to_sq(struct qedf_rport *fcport, u16 xid, u32 ptu_invalidate,
+ enum fcoe_task_type req_type, u32 offset)
+{
+ struct fcoe_wqe *sqe;
+ uint16_t total_sqe = (fcport->sq_mem_size)/(sizeof(struct fcoe_wqe));
+
+ sqe = &fcport->sq[fcport->sq_prod_idx];
+
+ fcport->sq_prod_idx++;
+ fcport->fw_sq_prod_idx++;
+ if (fcport->sq_prod_idx == total_sqe)
+ fcport->sq_prod_idx = 0;
+
+ switch (req_type) {
+ case FCOE_TASK_TYPE_WRITE_INITIATOR:
+ case FCOE_TASK_TYPE_READ_INITIATOR:
+ SET_FIELD(sqe->flags, FCOE_WQE_REQ_TYPE, SEND_FCOE_CMD);
+ if (ptu_invalidate)
+ SET_FIELD(sqe->flags, FCOE_WQE_INVALIDATE_PTU, 1);
+ break;
+ case FCOE_TASK_TYPE_MIDPATH:
+ SET_FIELD(sqe->flags, FCOE_WQE_REQ_TYPE, SEND_FCOE_MIDPATH);
+ break;
+ case FCOE_TASK_TYPE_ABTS:
+ SET_FIELD(sqe->flags, FCOE_WQE_REQ_TYPE,
+ SEND_FCOE_ABTS_REQUEST);
+ break;
+ case FCOE_TASK_TYPE_EXCHANGE_CLEANUP:
+ SET_FIELD(sqe->flags, FCOE_WQE_REQ_TYPE,
+ FCOE_EXCHANGE_CLEANUP);
+ break;
+ case FCOE_TASK_TYPE_SEQUENCE_CLEANUP:
+ SET_FIELD(sqe->flags, FCOE_WQE_REQ_TYPE,
+ FCOE_SEQUENCE_RECOVERY);
+ /* NOTE: offset param only used for sequence recovery */
+ sqe->additional_info_union.seq_rec_updated_offset = offset;
+ break;
+ case FCOE_TASK_TYPE_UNSOLICITED:
+ break;
+ default:
+ break;
+ }
+
+ sqe->task_id = xid;
+
+ /* Make sure SQ data is coherent */
+ wmb();
+
+}
+
+void qedf_ring_doorbell(struct qedf_rport *fcport)
+{
+ struct fcoe_db_data dbell = { 0 };
+
+ dbell.agg_flags = 0;
+
+ dbell.params |= DB_DEST_XCM << FCOE_DB_DATA_DEST_SHIFT;
+ dbell.params |= DB_AGG_CMD_SET << FCOE_DB_DATA_AGG_CMD_SHIFT;
+ dbell.params |= DQ_XCM_FCOE_SQ_PROD_CMD <<
+ FCOE_DB_DATA_AGG_VAL_SEL_SHIFT;
+
+ dbell.sq_prod = fcport->fw_sq_prod_idx;
+ writel(*(u32 *)&dbell, fcport->p_doorbell);
+ /* Make sure SQ index is updated so f/w prcesses requests in order */
+ wmb();
+ mmiowb();
+}
+
+static void qedf_trace_io(struct qedf_rport *fcport, struct qedf_ioreq *io_req,
+ int8_t direction)
+{
+ struct qedf_ctx *qedf = fcport->qedf;
+ struct qedf_io_log *io_log;
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ unsigned long flags;
+ uint8_t op;
+
+ spin_lock_irqsave(&qedf->io_trace_lock, flags);
+
+ io_log = &qedf->io_trace_buf[qedf->io_trace_idx];
+ io_log->direction = direction;
+ io_log->task_id = io_req->xid;
+ io_log->port_id = fcport->rdata->ids.port_id;
+ io_log->lun = sc_cmd->device->lun;
+ io_log->op = op = sc_cmd->cmnd[0];
+ io_log->lba[0] = sc_cmd->cmnd[2];
+ io_log->lba[1] = sc_cmd->cmnd[3];
+ io_log->lba[2] = sc_cmd->cmnd[4];
+ io_log->lba[3] = sc_cmd->cmnd[5];
+ io_log->bufflen = scsi_bufflen(sc_cmd);
+ io_log->sg_count = scsi_sg_count(sc_cmd);
+ io_log->result = sc_cmd->result;
+ io_log->jiffies = jiffies;
+ io_log->refcount = atomic_read(&io_req->refcount.refcount);
+
+ if (direction == QEDF_IO_TRACE_REQ) {
+ /* For requests we only care abot the submission CPU */
+ io_log->req_cpu = io_req->cpu;
+ io_log->int_cpu = 0;
+ io_log->rsp_cpu = 0;
+ } else if (direction == QEDF_IO_TRACE_RSP) {
+ io_log->req_cpu = io_req->cpu;
+ io_log->int_cpu = io_req->int_cpu;
+ io_log->rsp_cpu = smp_processor_id();
+ }
+
+ io_log->sge_type = io_req->sge_type;
+
+ qedf->io_trace_idx++;
+ if (qedf->io_trace_idx == QEDF_IO_TRACE_SIZE)
+ qedf->io_trace_idx = 0;
+
+ spin_unlock_irqrestore(&qedf->io_trace_lock, flags);
+}
+
+int qedf_post_io_req(struct qedf_rport *fcport, struct qedf_ioreq *io_req)
+{
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct Scsi_Host *host = sc_cmd->device->host;
+ struct fc_lport *lport = shost_priv(host);
+ struct qedf_ctx *qedf = lport_priv(lport);
+ struct fcoe_task_context *task_ctx;
+ u16 xid;
+ enum fcoe_task_type req_type = 0;
+ u32 ptu_invalidate = 0;
+
+ /* Initialize rest of io_req fileds */
+ io_req->data_xfer_len = scsi_bufflen(sc_cmd);
+ sc_cmd->SCp.ptr = (char *)io_req;
+ io_req->use_slowpath = false; /* Assume fast SGL by default */
+
+ /* Record which cpu this request is associated with */
+ io_req->cpu = smp_processor_id();
+
+ if (sc_cmd->sc_data_direction == DMA_FROM_DEVICE) {
+ req_type = FCOE_TASK_TYPE_READ_INITIATOR;
+ io_req->io_req_flags = QEDF_READ;
+ qedf->input_requests++;
+ } else if (sc_cmd->sc_data_direction == DMA_TO_DEVICE) {
+ req_type = FCOE_TASK_TYPE_WRITE_INITIATOR;
+ io_req->io_req_flags = QEDF_WRITE;
+ qedf->output_requests++;
+ } else {
+ io_req->io_req_flags = 0;
+ qedf->control_requests++;
+ }
+
+ xid = io_req->xid;
+
+ /* Build buffer descriptor list for firmware from sg list */
+ if (qedf_build_bd_list_from_sg(io_req)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "BD list creation failed.\n");
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ return -EAGAIN;
+ }
+
+ /* Get the task context */
+ task_ctx = qedf_get_task_mem(&qedf->tasks, xid);
+ if (!task_ctx) {
+ QEDF_WARN(&(qedf->dbg_ctx), "task_ctx is NULL, xid=%d.\n",
+ xid);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ return -EINVAL;
+ }
+
+ qedf_init_task(fcport, lport, io_req, &ptu_invalidate, task_ctx);
+
+ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Session not offloaded yet.\n");
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ }
+
+ /* Obtain free SQ entry */
+ qedf_add_to_sq(fcport, xid, ptu_invalidate, req_type, 0);
+
+ /* Ring doorbell */
+ qedf_ring_doorbell(fcport);
+
+ if (qedf_io_tracing && io_req->sc_cmd)
+ qedf_trace_io(fcport, io_req, QEDF_IO_TRACE_REQ);
+
+ return false;
+}
+
+int
+qedf_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd)
+{
+ struct fc_lport *lport = shost_priv(host);
+ struct qedf_ctx *qedf = lport_priv(lport);
+ struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+ struct fc_rport_libfc_priv *rp = rport->dd_data;
+ struct qedf_rport *fcport = rport->dd_data;
+ struct qedf_ioreq *io_req;
+ int rc = 0;
+ int rval;
+ unsigned long flags = 0;
+
+
+ if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
+ sc_cmd->result = DID_NO_CONNECT << 16;
+ sc_cmd->scsi_done(sc_cmd);
+ return 0;
+ }
+
+ rval = fc_remote_port_chkready(rport);
+ if (rval) {
+ sc_cmd->result = rval;
+ sc_cmd->scsi_done(sc_cmd);
+ return 0;
+ }
+
+ /* Retry command if we are doing a qed drain operation */
+ if (test_bit(QEDF_DRAIN_ACTIVE, &qedf->flags)) {
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit_qcmd;
+ }
+
+ if (lport->state != LPORT_ST_READY ||
+ atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit_qcmd;
+ }
+
+ /* rport and tgt are allocated together, so tgt should be non-NULL */
+ fcport = (struct qedf_rport *)&rp[1];
+
+ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ /*
+ * Session is not offloaded yet. Let SCSI-ml retry
+ * the command.
+ */
+ rc = SCSI_MLQUEUE_TARGET_BUSY;
+ goto exit_qcmd;
+ }
+ if (fcport->retry_delay_timestamp) {
+ if (time_after(jiffies, fcport->retry_delay_timestamp)) {
+ fcport->retry_delay_timestamp = 0;
+ } else {
+ /* If retry_delay timer is active, flow off the ML */
+ rc = SCSI_MLQUEUE_TARGET_BUSY;
+ goto exit_qcmd;
+ }
+ }
+
+ io_req = qedf_alloc_cmd(fcport, QEDF_SCSI_CMD);
+ if (!io_req) {
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit_qcmd;
+ }
+
+ io_req->sc_cmd = sc_cmd;
+
+ /* Take fcport->rport_lock for posting to fcport send queue */
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+ if (qedf_post_io_req(fcport, io_req)) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Unable to post io_req\n");
+ /* Return SQE to pool */
+ atomic_inc(&fcport->free_sqes);
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ }
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+
+exit_qcmd:
+ return rc;
+}
+
+static void qedf_parse_fcp_rsp(struct qedf_ioreq *io_req,
+ struct fcoe_cqe_rsp_info *fcp_rsp)
+{
+ struct scsi_cmnd *sc_cmd = io_req->sc_cmd;
+ struct qedf_ctx *qedf = io_req->fcport->qedf;
+ u8 rsp_flags = fcp_rsp->rsp_flags.flags;
+ int fcp_sns_len = 0;
+ int fcp_rsp_len = 0;
+ uint8_t *rsp_info, *sense_data;
+
+ io_req->fcp_status = FC_GOOD;
+ io_req->fcp_resid = 0;
+ if (rsp_flags & (FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER |
+ FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER))
+ io_req->fcp_resid = fcp_rsp->fcp_resid;
+
+ io_req->scsi_comp_flags = rsp_flags;
+ CMD_SCSI_STATUS(sc_cmd) = io_req->cdb_status =
+ fcp_rsp->scsi_status_code;
+
+ if (rsp_flags &
+ FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID)
+ fcp_rsp_len = fcp_rsp->fcp_rsp_len;
+
+ if (rsp_flags &
+ FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID)
+ fcp_sns_len = fcp_rsp->fcp_sns_len;
+
+ io_req->fcp_rsp_len = fcp_rsp_len;
+ io_req->fcp_sns_len = fcp_sns_len;
+ rsp_info = sense_data = io_req->sense_buffer;
+
+ /* fetch fcp_rsp_code */
+ if ((fcp_rsp_len == 4) || (fcp_rsp_len == 8)) {
+ /* Only for task management function */
+ io_req->fcp_rsp_code = rsp_info[3];
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "fcp_rsp_code = %d\n", io_req->fcp_rsp_code);
+ /* Adjust sense-data location. */
+ sense_data += fcp_rsp_len;
+ }
+
+ if (fcp_sns_len > SCSI_SENSE_BUFFERSIZE) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Truncating sense buffer\n");
+ fcp_sns_len = SCSI_SENSE_BUFFERSIZE;
+ }
+
+ memset(sc_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
+ if (fcp_sns_len)
+ memcpy(sc_cmd->sense_buffer, sense_data,
+ fcp_sns_len);
+}
+
+static void qedf_unmap_sg_list(struct qedf_ctx *qedf, struct qedf_ioreq *io_req)
+{
+ struct scsi_cmnd *sc = io_req->sc_cmd;
+
+ if (io_req->bd_tbl->bd_valid && sc && scsi_sg_count(sc)) {
+ dma_unmap_sg(&qedf->pdev->dev, scsi_sglist(sc),
+ scsi_sg_count(sc), sc->sc_data_direction);
+ io_req->bd_tbl->bd_valid = 0;
+ }
+}
+
+void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ u16 xid, rval;
+ struct fcoe_task_context *task_ctx;
+ struct scsi_cmnd *sc_cmd;
+ struct fcoe_cqe_rsp_info *fcp_rsp;
+ struct qedf_rport *fcport;
+ int refcount;
+ u16 scope, qualifier = 0;
+ u8 fw_residual_flag = 0;
+
+ if (!io_req)
+ return;
+ if (!cqe)
+ return;
+
+ xid = io_req->xid;
+ task_ctx = qedf_get_task_mem(&qedf->tasks, xid);
+ sc_cmd = io_req->sc_cmd;
+ fcp_rsp = &cqe->cqe_info.rsp_info;
+
+ if (!sc_cmd) {
+ QEDF_WARN(&(qedf->dbg_ctx), "sc_cmd is NULL!\n");
+ return;
+ }
+
+ if (!sc_cmd->SCp.ptr) {
+ QEDF_WARN(&(qedf->dbg_ctx), "SCp.ptr is NULL, returned in "
+ "another context.\n");
+ return;
+ }
+
+ if (!sc_cmd->request) {
+ QEDF_WARN(&(qedf->dbg_ctx), "sc_cmd->request is NULL, "
+ "sc_cmd=%p.\n", sc_cmd);
+ return;
+ }
+
+ if (!sc_cmd->request->special) {
+ QEDF_WARN(&(qedf->dbg_ctx), "request->special is NULL so "
+ "request not valid, sc_cmd=%p.\n", sc_cmd);
+ return;
+ }
+
+ if (!sc_cmd->request->q) {
+ QEDF_WARN(&(qedf->dbg_ctx), "request->q is NULL so request "
+ "is not valid, sc_cmd=%p.\n", sc_cmd);
+ return;
+ }
+
+ fcport = io_req->fcport;
+
+ qedf_parse_fcp_rsp(io_req, fcp_rsp);
+
+ qedf_unmap_sg_list(qedf, io_req);
+
+ /* Check for FCP transport error */
+ if (io_req->fcp_rsp_len > 3 && io_req->fcp_rsp_code) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "FCP I/O protocol failure xid=0x%x fcp_rsp_len=%d "
+ "fcp_rsp_code=%d.\n", io_req->xid, io_req->fcp_rsp_len,
+ io_req->fcp_rsp_code);
+ sc_cmd->result = DID_BUS_BUSY << 16;
+ goto out;
+ }
+
+ fw_residual_flag = GET_FIELD(cqe->cqe_info.rsp_info.fw_error_flags,
+ FCOE_CQE_RSP_INFO_FW_UNDERRUN);
+ if (fw_residual_flag) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "Firmware detected underrun: xid=0x%x fcp_rsp.flags=0x%02x "
+ "fcp_resid=%d fw_residual=0x%x.\n", io_req->xid,
+ fcp_rsp->rsp_flags.flags, io_req->fcp_resid,
+ cqe->cqe_info.rsp_info.fw_residual);
+
+ if (io_req->cdb_status == 0)
+ sc_cmd->result = (DID_ERROR << 16) | io_req->cdb_status;
+ else
+ sc_cmd->result = (DID_OK << 16) | io_req->cdb_status;
+
+ /* Abort the command since we did not get all the data */
+ init_completion(&io_req->abts_done);
+ rval = qedf_initiate_abts(io_req, true);
+ if (rval) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
+ sc_cmd->result = (DID_ERROR << 16) | io_req->cdb_status;
+ }
+
+ /*
+ * Set resid to the whole buffer length so we won't try to resue
+ * any previously data.
+ */
+ scsi_set_resid(sc_cmd, scsi_bufflen(sc_cmd));
+ goto out;
+ }
+
+ switch (io_req->fcp_status) {
+ case FC_GOOD:
+ if (io_req->cdb_status == 0) {
+ /* Good I/O completion */
+ sc_cmd->result = DID_OK << 16;
+ } else {
+ refcount = atomic_read(&io_req->refcount.refcount);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "%d:0:%d:%d xid=0x%0x op=0x%02x "
+ "lba=%02x%02x%02x%02x cdb_status=%d "
+ "fcp_resid=0x%x refcount=%d.\n",
+ qedf->lport->host->host_no, sc_cmd->device->id,
+ sc_cmd->device->lun, io_req->xid,
+ sc_cmd->cmnd[0], sc_cmd->cmnd[2], sc_cmd->cmnd[3],
+ sc_cmd->cmnd[4], sc_cmd->cmnd[5],
+ io_req->cdb_status, io_req->fcp_resid,
+ refcount);
+ sc_cmd->result = (DID_OK << 16) | io_req->cdb_status;
+
+ if (io_req->cdb_status == SAM_STAT_TASK_SET_FULL ||
+ io_req->cdb_status == SAM_STAT_BUSY) {
+ /*
+ * Check whether we need to set retry_delay at
+ * all based on retry_delay module parameter
+ * and the status qualifier.
+ */
+
+ /* Upper 2 bits */
+ scope = fcp_rsp->retry_delay_timer & 0xC000;
+ /* Lower 14 bits */
+ qualifier = fcp_rsp->retry_delay_timer & 0x3FFF;
+
+ if (qedf_retry_delay &&
+ scope > 0 && qualifier > 0 &&
+ qualifier <= 0x3FEF) {
+ /* Check we don't go over the max */
+ if (qualifier > QEDF_RETRY_DELAY_MAX)
+ qualifier =
+ QEDF_RETRY_DELAY_MAX;
+ fcport->retry_delay_timestamp =
+ jiffies + (qualifier * HZ / 10);
+ }
+ }
+ }
+ if (io_req->fcp_resid)
+ scsi_set_resid(sc_cmd, io_req->fcp_resid);
+ break;
+ default:
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "fcp_status=%d.\n",
+ io_req->fcp_status);
+ break;
+ }
+
+out:
+ if (qedf_io_tracing)
+ qedf_trace_io(fcport, io_req, QEDF_IO_TRACE_RSP);
+
+ io_req->sc_cmd = NULL;
+ sc_cmd->SCp.ptr = NULL;
+ sc_cmd->scsi_done(sc_cmd);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+}
+
+/* Return a SCSI command in some other context besides a normal completion */
+void qedf_scsi_done(struct qedf_ctx *qedf, struct qedf_ioreq *io_req,
+ int result)
+{
+ u16 xid;
+ struct scsi_cmnd *sc_cmd;
+ int refcount;
+
+ if (!io_req)
+ return;
+
+ xid = io_req->xid;
+ sc_cmd = io_req->sc_cmd;
+
+ if (!sc_cmd) {
+ QEDF_WARN(&(qedf->dbg_ctx), "sc_cmd is NULL!\n");
+ return;
+ }
+
+ if (!sc_cmd->SCp.ptr) {
+ QEDF_WARN(&(qedf->dbg_ctx), "SCp.ptr is NULL, returned in "
+ "another context.\n");
+ return;
+ }
+
+ qedf_unmap_sg_list(qedf, io_req);
+
+ sc_cmd->result = result << 16;
+ refcount = atomic_read(&io_req->refcount.refcount);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "%d:0:%d:%d: Completing "
+ "sc_cmd=%p result=0x%08x op=0x%02x lba=0x%02x%02x%02x%02x, "
+ "allowed=%d retries=%d refcount=%d.\n",
+ qedf->lport->host->host_no, sc_cmd->device->id,
+ sc_cmd->device->lun, sc_cmd, sc_cmd->result, sc_cmd->cmnd[0],
+ sc_cmd->cmnd[2], sc_cmd->cmnd[3], sc_cmd->cmnd[4],
+ sc_cmd->cmnd[5], sc_cmd->allowed, sc_cmd->retries,
+ refcount);
+
+ /*
+ * Set resid to the whole buffer length so we won't try to resue any
+ * previously read data
+ */
+ scsi_set_resid(sc_cmd, scsi_bufflen(sc_cmd));
+
+ if (qedf_io_tracing)
+ qedf_trace_io(io_req->fcport, io_req, QEDF_IO_TRACE_RSP);
+
+ io_req->sc_cmd = NULL;
+ sc_cmd->SCp.ptr = NULL;
+ sc_cmd->scsi_done(sc_cmd);
+ kref_put(&io_req->refcount, qedf_release_cmd);
+}
+
+/*
+ * Handle warning type CQE completions. This is mainly used for REC timer
+ * popping.
+ */
+void qedf_process_warning_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ int rval, i;
+ struct qedf_rport *fcport = io_req->fcport;
+ u64 err_warn_bit_map;
+ u8 err_warn = 0xff;
+
+ if (!cqe)
+ return;
+
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx), "Warning CQE, "
+ "xid=0x%x\n", io_req->xid);
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx),
+ "err_warn_bitmap=%08x:%08x\n",
+ le32_to_cpu(cqe->cqe_info.err_info.err_warn_bitmap_hi),
+ le32_to_cpu(cqe->cqe_info.err_info.err_warn_bitmap_lo));
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx), "tx_buff_off=%08x, "
+ "rx_buff_off=%08x, rx_id=%04x\n",
+ le32_to_cpu(cqe->cqe_info.err_info.tx_buf_off),
+ le32_to_cpu(cqe->cqe_info.err_info.rx_buf_off),
+ le32_to_cpu(cqe->cqe_info.err_info.rx_id));
+
+ /* Normalize the error bitmap value to an just an unsigned int */
+ err_warn_bit_map = (u64)
+ ((u64)cqe->cqe_info.err_info.err_warn_bitmap_hi << 32) |
+ (u64)cqe->cqe_info.err_info.err_warn_bitmap_lo;
+ for (i = 0; i < 64; i++) {
+ if (err_warn_bit_map & (u64)((u64)1 << i)) {
+ err_warn = i;
+ break;
+ }
+ }
+
+ /* Check if REC TOV expired if this is a tape device */
+ if (fcport->dev_type == QEDF_RPORT_TYPE_TAPE) {
+ if (err_warn ==
+ FCOE_WARNING_CODE_REC_TOV_TIMER_EXPIRATION) {
+ QEDF_ERR(&(qedf->dbg_ctx), "REC timer expired.\n");
+ if (!test_bit(QEDF_CMD_SRR_SENT, &io_req->flags)) {
+ io_req->rx_buf_off =
+ cqe->cqe_info.err_info.rx_buf_off;
+ io_req->tx_buf_off =
+ cqe->cqe_info.err_info.tx_buf_off;
+ io_req->rx_id = cqe->cqe_info.err_info.rx_id;
+ rval = qedf_send_rec(io_req);
+ /*
+ * We only want to abort the io_req if we
+ * can't queue the REC command as we want to
+ * keep the exchange open for recovery.
+ */
+ if (rval)
+ goto send_abort;
+ }
+ return;
+ }
+ }
+
+send_abort:
+ init_completion(&io_req->abts_done);
+ rval = qedf_initiate_abts(io_req, true);
+ if (rval)
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
+}
+
+/* Cleanup a command when we receive an error detection completion */
+void qedf_process_error_detect(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ int rval;
+
+ if (!cqe)
+ return;
+
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx), "Error detection CQE, "
+ "xid=0x%x\n", io_req->xid);
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx),
+ "err_warn_bitmap=%08x:%08x\n",
+ le32_to_cpu(cqe->cqe_info.err_info.err_warn_bitmap_hi),
+ le32_to_cpu(cqe->cqe_info.err_info.err_warn_bitmap_lo));
+ QEDF_ERR(&(io_req->fcport->qedf->dbg_ctx), "tx_buff_off=%08x, "
+ "rx_buff_off=%08x, rx_id=%04x\n",
+ le32_to_cpu(cqe->cqe_info.err_info.tx_buf_off),
+ le32_to_cpu(cqe->cqe_info.err_info.rx_buf_off),
+ le32_to_cpu(cqe->cqe_info.err_info.rx_id));
+
+ if (qedf->stop_io_on_error) {
+ qedf_stop_all_io(qedf);
+ return;
+ }
+
+ init_completion(&io_req->abts_done);
+ rval = qedf_initiate_abts(io_req, true);
+ if (rval)
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
+}
+
+static void qedf_flush_els_req(struct qedf_ctx *qedf,
+ struct qedf_ioreq *els_req)
+{
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Flushing ELS request xid=0x%x refcount=%d.\n", els_req->xid,
+ atomic_read(&els_req->refcount.refcount));
+
+ /*
+ * Need to distinguish this from a timeout when calling the
+ * els_req->cb_func.
+ */
+ els_req->event = QEDF_IOREQ_EV_ELS_FLUSH;
+
+ /* Cancel the timer */
+ cancel_delayed_work_sync(&els_req->timeout_work);
+
+ /* Call callback function to complete command */
+ if (els_req->cb_func && els_req->cb_arg) {
+ els_req->cb_func(els_req->cb_arg);
+ els_req->cb_arg = NULL;
+ }
+
+ /* Release kref for original initiate_els */
+ kref_put(&els_req->refcount, qedf_release_cmd);
+}
+
+/* A value of -1 for lun is a wild card that means flush all
+ * active SCSI I/Os for the target.
+ */
+void qedf_flush_active_ios(struct qedf_rport *fcport, int lun)
+{
+ struct qedf_ioreq *io_req;
+ struct qedf_ctx *qedf;
+ struct qedf_cmd_mgr *cmd_mgr;
+ int i, rc;
+
+ if (!fcport)
+ return;
+
+ qedf = fcport->qedf;
+ cmd_mgr = qedf->cmd_mgr;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "Flush active i/o's.\n");
+
+ for (i = 0; i < FCOE_PARAMS_NUM_TASKS; i++) {
+ io_req = &cmd_mgr->cmds[i];
+
+ if (!io_req)
+ continue;
+ if (io_req->fcport != fcport)
+ continue;
+ if (io_req->cmd_type == QEDF_ELS) {
+ rc = kref_get_unless_zero(&io_req->refcount);
+ if (!rc) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "Could not get kref for io_req=0x%p.\n",
+ io_req);
+ continue;
+ }
+ qedf_flush_els_req(qedf, io_req);
+ /*
+ * Release the kref and go back to the top of the
+ * loop.
+ */
+ goto free_cmd;
+ }
+
+ if (!io_req->sc_cmd)
+ continue;
+ if (lun > 0) {
+ if (io_req->sc_cmd->device->lun !=
+ (u64)lun)
+ continue;
+ }
+
+ /*
+ * Use kref_get_unless_zero in the unlikely case the command
+ * we're about to flush was completed in the normal SCSI path
+ */
+ rc = kref_get_unless_zero(&io_req->refcount);
+ if (!rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not get kref for "
+ "io_req=0x%p\n", io_req);
+ continue;
+ }
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Cleanup xid=0x%x.\n", io_req->xid);
+
+ /* Cleanup task and return I/O mid-layer */
+ qedf_initiate_cleanup(io_req, true);
+
+free_cmd:
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ }
+}
+
+/*
+ * Initiate a ABTS middle path command. Note that we don't have to initialize
+ * the task context for an ABTS task.
+ */
+int qedf_initiate_abts(struct qedf_ioreq *io_req, bool return_scsi_cmd_on_abts)
+{
+ struct fc_lport *lport;
+ struct qedf_rport *fcport = io_req->fcport;
+ struct fc_rport_priv *rdata = fcport->rdata;
+ struct qedf_ctx *qedf = fcport->qedf;
+ u16 xid;
+ u32 r_a_tov = 0;
+ int rc = 0;
+ unsigned long flags;
+
+ r_a_tov = rdata->r_a_tov;
+ lport = qedf->lport;
+
+ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "tgt not offloaded\n");
+ rc = 1;
+ goto abts_err;
+ }
+
+ if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "link is not ready\n");
+ rc = 1;
+ goto abts_err;
+ }
+
+ if (atomic_read(&qedf->link_down_tmo_valid) > 0) {
+ QEDF_ERR(&(qedf->dbg_ctx), "link_down_tmo active.\n");
+ rc = 1;
+ goto abts_err;
+ }
+
+ /* Ensure room on SQ */
+ if (!atomic_read(&fcport->free_sqes)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "No SQ entries available\n");
+ rc = 1;
+ goto abts_err;
+ }
+
+
+ kref_get(&io_req->refcount);
+
+ xid = io_req->xid;
+ qedf->control_requests++;
+ qedf->packet_aborts++;
+
+ /* Set the return CPU to be the same as the request one */
+ io_req->cpu = smp_processor_id();
+
+ /* Set the command type to abort */
+ io_req->cmd_type = QEDF_ABTS;
+ io_req->return_scsi_cmd_on_abts = return_scsi_cmd_on_abts;
+
+ set_bit(QEDF_CMD_IN_ABORT, &io_req->flags);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM, "ABTS io_req xid = "
+ "0x%x\n", xid);
+
+ qedf_cmd_timer_set(qedf, io_req, QEDF_ABORT_TIMEOUT * HZ);
+
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+
+ /* Add ABTS to send queue */
+ qedf_add_to_sq(fcport, xid, 0, FCOE_TASK_TYPE_ABTS, 0);
+
+ /* Ring doorbell */
+ qedf_ring_doorbell(fcport);
+
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+
+ return rc;
+abts_err:
+ /*
+ * If the ABTS task fails to queue then we need to cleanup the
+ * task at the firmware.
+ */
+ qedf_initiate_cleanup(io_req, return_scsi_cmd_on_abts);
+ return rc;
+}
+
+void qedf_process_abts_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ uint32_t r_ctl;
+ uint16_t xid;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM, "Entered with xid = "
+ "0x%x cmd_type = %d\n", io_req->xid, io_req->cmd_type);
+
+ cancel_delayed_work(&io_req->timeout_work);
+
+ xid = io_req->xid;
+ r_ctl = cqe->cqe_info.abts_info.r_ctl;
+
+ switch (r_ctl) {
+ case FC_RCTL_BA_ACC:
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM,
+ "ABTS response - ACC Send RRQ after R_A_TOV\n");
+ io_req->event = QEDF_IOREQ_EV_ABORT_SUCCESS;
+ /*
+ * Dont release this cmd yet. It will be relesed
+ * after we get RRQ response
+ */
+ kref_get(&io_req->refcount);
+ queue_delayed_work(qedf->dpc_wq, &io_req->rrq_work,
+ msecs_to_jiffies(qedf->lport->r_a_tov));
+ break;
+ /* For error cases let the cleanup return the command */
+ case FC_RCTL_BA_RJT:
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM,
+ "ABTS response - RJT\n");
+ io_req->event = QEDF_IOREQ_EV_ABORT_FAILED;
+ break;
+ default:
+ QEDF_ERR(&(qedf->dbg_ctx), "Unknown ABTS response\n");
+ break;
+ }
+
+ clear_bit(QEDF_CMD_IN_ABORT, &io_req->flags);
+
+ if (io_req->sc_cmd) {
+ if (io_req->return_scsi_cmd_on_abts)
+ qedf_scsi_done(qedf, io_req, DID_ERROR);
+ }
+
+ /* Notify eh_abort handler that ABTS is complete */
+ complete(&io_req->abts_done);
+
+ kref_put(&io_req->refcount, qedf_release_cmd);
+}
+
+int qedf_init_mp_req(struct qedf_ioreq *io_req)
+{
+ struct qedf_mp_req *mp_req;
+ struct fcoe_sge *mp_req_bd;
+ struct fcoe_sge *mp_resp_bd;
+ struct qedf_ctx *qedf = io_req->fcport->qedf;
+ dma_addr_t addr;
+ uint64_t sz;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_MP_REQ, "Entered.\n");
+
+ mp_req = (struct qedf_mp_req *)&(io_req->mp_req);
+ memset(mp_req, 0, sizeof(struct qedf_mp_req));
+
+ if (io_req->cmd_type != QEDF_ELS) {
+ mp_req->req_len = sizeof(struct fcp_cmnd);
+ io_req->data_xfer_len = mp_req->req_len;
+ } else
+ mp_req->req_len = io_req->data_xfer_len;
+
+ mp_req->req_buf = dma_alloc_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
+ &mp_req->req_buf_dma, GFP_KERNEL);
+ if (!mp_req->req_buf) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to alloc MP req buffer\n");
+ qedf_free_mp_resc(io_req);
+ return -ENOMEM;
+ }
+
+ mp_req->resp_buf = dma_alloc_coherent(&qedf->pdev->dev,
+ QEDF_PAGE_SIZE, &mp_req->resp_buf_dma, GFP_KERNEL);
+ if (!mp_req->resp_buf) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to alloc TM resp "
+ "buffer\n");
+ qedf_free_mp_resc(io_req);
+ return -ENOMEM;
+ }
+
+ /* Allocate and map mp_req_bd and mp_resp_bd */
+ sz = sizeof(struct fcoe_sge);
+ mp_req->mp_req_bd = dma_alloc_coherent(&qedf->pdev->dev, sz,
+ &mp_req->mp_req_bd_dma, GFP_KERNEL);
+ if (!mp_req->mp_req_bd) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to alloc MP req bd\n");
+ qedf_free_mp_resc(io_req);
+ return -ENOMEM;
+ }
+
+ mp_req->mp_resp_bd = dma_alloc_coherent(&qedf->pdev->dev, sz,
+ &mp_req->mp_resp_bd_dma, GFP_KERNEL);
+ if (!mp_req->mp_resp_bd) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to alloc MP resp bd\n");
+ qedf_free_mp_resc(io_req);
+ return -ENOMEM;
+ }
+
+ /* Fill bd table */
+ addr = mp_req->req_buf_dma;
+ mp_req_bd = mp_req->mp_req_bd;
+ mp_req_bd->sge_addr.lo = U64_LO(addr);
+ mp_req_bd->sge_addr.hi = U64_HI(addr);
+ mp_req_bd->size = QEDF_PAGE_SIZE;
+
+ /*
+ * MP buffer is either a task mgmt command or an ELS.
+ * So the assumption is that it consumes a single bd
+ * entry in the bd table
+ */
+ mp_resp_bd = mp_req->mp_resp_bd;
+ addr = mp_req->resp_buf_dma;
+ mp_resp_bd->sge_addr.lo = U64_LO(addr);
+ mp_resp_bd->sge_addr.hi = U64_HI(addr);
+ mp_resp_bd->size = QEDF_PAGE_SIZE;
+
+ return 0;
+}
+
+/*
+ * Last ditch effort to clear the port if it's stuck. Used only after a
+ * cleanup task times out.
+ */
+static void qedf_drain_request(struct qedf_ctx *qedf)
+{
+ if (test_bit(QEDF_DRAIN_ACTIVE, &qedf->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "MCP drain already active.\n");
+ return;
+ }
+
+ /* Set bit to return all queuecommand requests as busy */
+ set_bit(QEDF_DRAIN_ACTIVE, &qedf->flags);
+
+ /* Call qed drain request for function. Should be synchronous */
+ qed_ops->common->drain(qedf->cdev);
+
+ /* Settle time for CQEs to be returned */
+ msleep(100);
+
+ /* Unplug and continue */
+ clear_bit(QEDF_DRAIN_ACTIVE, &qedf->flags);
+}
+
+/*
+ * Returns SUCCESS if the cleanup task does not timeout, otherwise return
+ * FAILURE.
+ */
+int qedf_initiate_cleanup(struct qedf_ioreq *io_req,
+ bool return_scsi_cmd_on_abts)
+{
+ struct qedf_rport *fcport;
+ struct qedf_ctx *qedf;
+ uint16_t xid;
+ struct fcoe_task_context *task;
+ int tmo = 0;
+ int rc = SUCCESS;
+ unsigned long flags;
+
+ fcport = io_req->fcport;
+ if (!fcport) {
+ QEDF_ERR(NULL, "fcport is NULL.\n");
+ return SUCCESS;
+ }
+
+ qedf = fcport->qedf;
+ if (!qedf) {
+ QEDF_ERR(NULL, "qedf is NULL.\n");
+ return SUCCESS;
+ }
+
+ if (!test_bit(QEDF_CMD_OUTSTANDING, &io_req->flags) ||
+ test_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "io_req xid=0x%x already in "
+ "cleanup processing or already completed.\n",
+ io_req->xid);
+ return SUCCESS;
+ }
+
+ /* Ensure room on SQ */
+ if (!atomic_read(&fcport->free_sqes)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "No SQ entries available\n");
+ return FAILED;
+ }
+
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "Entered xid=0x%x\n",
+ io_req->xid);
+
+ /* Cleanup cmds re-use the same TID as the original I/O */
+ xid = io_req->xid;
+ io_req->cmd_type = QEDF_CLEANUP;
+ io_req->return_scsi_cmd_on_abts = return_scsi_cmd_on_abts;
+
+ /* Set the return CPU to be the same as the request one */
+ io_req->cpu = smp_processor_id();
+
+ set_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags);
+
+ task = qedf_get_task_mem(&qedf->tasks, xid);
+
+ init_completion(&io_req->tm_done);
+
+ /* Obtain free SQ entry */
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+ qedf_add_to_sq(fcport, xid, 0, FCOE_TASK_TYPE_EXCHANGE_CLEANUP, 0);
+
+ /* Ring doorbell */
+ qedf_ring_doorbell(fcport);
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+
+ tmo = wait_for_completion_timeout(&io_req->tm_done,
+ QEDF_CLEANUP_TIMEOUT * HZ);
+
+ if (!tmo) {
+ rc = FAILED;
+ /* Timeout case */
+ QEDF_ERR(&(qedf->dbg_ctx), "Cleanup command timeout, "
+ "xid=%x.\n", io_req->xid);
+ clear_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags);
+ /* Issue a drain request if cleanup task times out */
+ QEDF_ERR(&(qedf->dbg_ctx), "Issuing MCP drain request.\n");
+ qedf_drain_request(qedf);
+ }
+
+ if (io_req->sc_cmd) {
+ if (io_req->return_scsi_cmd_on_abts)
+ qedf_scsi_done(qedf, io_req, DID_ERROR);
+ }
+
+ if (rc == SUCCESS)
+ io_req->event = QEDF_IOREQ_EV_CLEANUP_SUCCESS;
+ else
+ io_req->event = QEDF_IOREQ_EV_CLEANUP_FAILED;
+
+ return rc;
+}
+
+void qedf_process_cleanup_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "Entered xid = 0x%x\n",
+ io_req->xid);
+
+ clear_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags);
+
+ /* Complete so we can finish cleaning up the I/O */
+ complete(&io_req->tm_done);
+}
+
+static int qedf_execute_tmf(struct qedf_rport *fcport, struct scsi_cmnd *sc_cmd,
+ uint8_t tm_flags)
+{
+ struct qedf_ioreq *io_req;
+ struct qedf_mp_req *tm_req;
+ struct fcoe_task_context *task;
+ struct fc_frame_header *fc_hdr;
+ struct fcp_cmnd *fcp_cmnd;
+ struct qedf_ctx *qedf = fcport->qedf;
+ int rc = 0;
+ uint16_t xid;
+ uint32_t sid, did;
+ int tmo = 0;
+ unsigned long flags;
+
+ if (!sc_cmd) {
+ QEDF_ERR(&(qedf->dbg_ctx), "invalid arg\n");
+ return FAILED;
+ }
+
+ if (!(test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))) {
+ QEDF_ERR(&(qedf->dbg_ctx), "fcport not offloaded\n");
+ rc = FAILED;
+ return FAILED;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM, "portid = 0x%x "
+ "tm_flags = %d\n", fcport->rdata->ids.port_id, tm_flags);
+
+ io_req = qedf_alloc_cmd(fcport, QEDF_TASK_MGMT_CMD);
+ if (!io_req) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed TMF");
+ rc = -EAGAIN;
+ goto reset_tmf_err;
+ }
+
+ /* Initialize rest of io_req fields */
+ io_req->sc_cmd = sc_cmd;
+ io_req->fcport = fcport;
+ io_req->cmd_type = QEDF_TASK_MGMT_CMD;
+
+ /* Set the return CPU to be the same as the request one */
+ io_req->cpu = smp_processor_id();
+
+ tm_req = (struct qedf_mp_req *)&(io_req->mp_req);
+
+ rc = qedf_init_mp_req(io_req);
+ if (rc == FAILED) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Task mgmt MP request init "
+ "failed\n");
+ kref_put(&io_req->refcount, qedf_release_cmd);
+ goto reset_tmf_err;
+ }
+
+ /* Set TM flags */
+ io_req->io_req_flags = 0;
+ tm_req->tm_flags = tm_flags;
+
+ /* Default is to return a SCSI command when an error occurs */
+ io_req->return_scsi_cmd_on_abts = true;
+
+ /* Fill FCP_CMND */
+ qedf_build_fcp_cmnd(io_req, (struct fcp_cmnd *)tm_req->req_buf);
+ fcp_cmnd = (struct fcp_cmnd *)tm_req->req_buf;
+ memset(fcp_cmnd->fc_cdb, 0, FCP_CMND_LEN);
+ fcp_cmnd->fc_dl = 0;
+
+ /* Fill FC header */
+ fc_hdr = &(tm_req->req_fc_hdr);
+ sid = fcport->sid;
+ did = fcport->rdata->ids.port_id;
+ __fc_fill_fc_hdr(fc_hdr, FC_RCTL_DD_UNSOL_CMD, sid, did,
+ FC_TYPE_FCP, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
+ FC_FC_SEQ_INIT, 0);
+ /* Obtain exchange id */
+ xid = io_req->xid;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM, "TMF io_req xid = "
+ "0x%x\n", xid);
+
+ /* Initialize task context for this IO request */
+ task = qedf_get_task_mem(&qedf->tasks, xid);
+ qedf_init_mp_task(io_req, task);
+
+ init_completion(&io_req->tm_done);
+
+ /* Obtain free SQ entry */
+ spin_lock_irqsave(&fcport->rport_lock, flags);
+ qedf_add_to_sq(fcport, xid, 0, FCOE_TASK_TYPE_MIDPATH, 0);
+
+ /* Ring doorbell */
+ qedf_ring_doorbell(fcport);
+ spin_unlock_irqrestore(&fcport->rport_lock, flags);
+
+ tmo = wait_for_completion_timeout(&io_req->tm_done,
+ QEDF_TM_TIMEOUT * HZ);
+
+ if (!tmo) {
+ rc = FAILED;
+ QEDF_ERR(&(qedf->dbg_ctx), "wait for tm_cmpl timeout!\n");
+ } else {
+ /* Check TMF response code */
+ if (io_req->fcp_rsp_code == 0)
+ rc = SUCCESS;
+ else
+ rc = FAILED;
+ }
+
+ if (tm_flags == FCP_TMF_LUN_RESET)
+ qedf_flush_active_ios(fcport, (int)sc_cmd->device->lun);
+ else
+ qedf_flush_active_ios(fcport, -1);
+
+ kref_put(&io_req->refcount, qedf_release_cmd);
+
+ if (rc != SUCCESS) {
+ QEDF_ERR(&(qedf->dbg_ctx), "task mgmt command failed...\n");
+ rc = FAILED;
+ } else {
+ QEDF_ERR(&(qedf->dbg_ctx), "task mgmt command success...\n");
+ rc = SUCCESS;
+ }
+reset_tmf_err:
+ return rc;
+}
+
+int qedf_initiate_tmf(struct scsi_cmnd *sc_cmd, u8 tm_flags)
+{
+ struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+ struct fc_rport_libfc_priv *rp = rport->dd_data;
+ struct qedf_rport *fcport = (struct qedf_rport *)&rp[1];
+ struct qedf_ctx *qedf;
+ struct fc_lport *lport;
+ int rc = SUCCESS;
+ int rval;
+
+ rval = fc_remote_port_chkready(rport);
+
+ if (rval) {
+ QEDF_ERR(NULL, "device_reset rport not ready\n");
+ rc = FAILED;
+ goto tmf_err;
+ }
+
+ if (fcport == NULL) {
+ QEDF_ERR(NULL, "device_reset: rport is NULL\n");
+ rc = FAILED;
+ goto tmf_err;
+ }
+
+ qedf = fcport->qedf;
+ lport = qedf->lport;
+
+ if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
+ rc = SUCCESS;
+ goto tmf_err;
+ }
+
+ if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "link is not ready\n");
+ rc = FAILED;
+ goto tmf_err;
+ }
+
+ rc = qedf_execute_tmf(fcport, sc_cmd, tm_flags);
+
+tmf_err:
+ return rc;
+}
+
+void qedf_process_tmf_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe,
+ struct qedf_ioreq *io_req)
+{
+ struct fcoe_cqe_rsp_info *fcp_rsp;
+ struct fcoe_cqe_midpath_info *mp_info;
+
+
+ /* Get TMF response length from CQE */
+ mp_info = &cqe->cqe_info.midpath_info;
+ io_req->mp_req.resp_len = mp_info->data_placement_size;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_SCSI_TM,
+ "Response len is %d.\n", io_req->mp_req.resp_len);
+
+ fcp_rsp = &cqe->cqe_info.rsp_info;
+ qedf_parse_fcp_rsp(io_req, fcp_rsp);
+
+ io_req->sc_cmd = NULL;
+ complete(&io_req->tm_done);
+}
+
+void qedf_process_unsol_compl(struct qedf_ctx *qedf, uint16_t que_idx,
+ struct fcoe_cqe *cqe)
+{
+ unsigned long flags;
+ uint16_t tmp;
+ uint16_t pktlen = cqe->cqe_info.unsolic_info.pkt_len;
+ u32 payload_len, crc;
+ struct fc_frame_header *fh;
+ struct fc_frame *fp;
+ struct qedf_io_work *io_work;
+ u32 bdq_idx;
+ void *bdq_addr;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_UNSOL,
+ "address.hi=%x address.lo=%x opaque_data.hi=%x "
+ "opaque_data.lo=%x bdq_prod_idx=%u len=%u.\n",
+ le32_to_cpu(cqe->cqe_info.unsolic_info.bd_info.address.hi),
+ le32_to_cpu(cqe->cqe_info.unsolic_info.bd_info.address.lo),
+ le32_to_cpu(cqe->cqe_info.unsolic_info.bd_info.opaque.hi),
+ le32_to_cpu(cqe->cqe_info.unsolic_info.bd_info.opaque.lo),
+ qedf->bdq_prod_idx, pktlen);
+
+ bdq_idx = le32_to_cpu(cqe->cqe_info.unsolic_info.bd_info.opaque.lo);
+ if (bdq_idx >= QEDF_BDQ_SIZE) {
+ QEDF_ERR(&(qedf->dbg_ctx), "bdq_idx is out of range %d.\n",
+ bdq_idx);
+ goto increment_prod;
+ }
+
+ bdq_addr = qedf->bdq[bdq_idx].buf_addr;
+ if (!bdq_addr) {
+ QEDF_ERR(&(qedf->dbg_ctx), "bdq_addr is NULL, dropping "
+ "unsolicited packet.\n");
+ goto increment_prod;
+ }
+
+ if (qedf_dump_frames) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_UNSOL,
+ "BDQ frame is at addr=%p.\n", bdq_addr);
+ print_hex_dump(KERN_WARNING, "bdq ", DUMP_PREFIX_OFFSET, 16, 1,
+ (void *)bdq_addr, pktlen, false);
+ }
+
+ /* Allocate frame */
+ payload_len = pktlen - sizeof(struct fc_frame_header);
+ fp = fc_frame_alloc(qedf->lport, payload_len);
+ if (!fp) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate fp.\n");
+ goto increment_prod;
+ }
+
+ /* Copy data from BDQ buffer into fc_frame struct */
+ fh = (struct fc_frame_header *)fc_frame_header_get(fp);
+ memcpy(fh, (void *)bdq_addr, pktlen);
+
+ /* Initialize the frame so libfc sees it as a valid frame */
+ crc = fcoe_fc_crc(fp);
+ fc_frame_init(fp);
+ fr_dev(fp) = qedf->lport;
+ fr_sof(fp) = FC_SOF_I3;
+ fr_eof(fp) = FC_EOF_T;
+ fr_crc(fp) = cpu_to_le32(~crc);
+
+ /*
+ * We need to return the frame back up to libfc in a non-atomic
+ * context
+ */
+ io_work = mempool_alloc(qedf->io_mempool, GFP_ATOMIC);
+ if (!io_work) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
+ "work for I/O completion.\n");
+ fc_frame_free(fp);
+ goto increment_prod;
+ }
+ memset(io_work, 0, sizeof(struct qedf_io_work));
+
+ INIT_WORK(&io_work->work, qedf_fp_io_handler);
+
+ /* Copy contents of CQE for deferred processing */
+ memcpy(&io_work->cqe, cqe, sizeof(struct fcoe_cqe));
+
+ io_work->qedf = qedf;
+ io_work->fp = fp;
+
+ queue_work_on(smp_processor_id(), qedf_io_wq, &io_work->work);
+increment_prod:
+ spin_lock_irqsave(&qedf->hba_lock, flags);
+
+ /* Increment producer to let f/w know we've handled the frame */
+ qedf->bdq_prod_idx++;
+
+ /* Producer index wraps at uint16_t boundary */
+ if (qedf->bdq_prod_idx == 0xffff)
+ qedf->bdq_prod_idx = 0;
+
+ writew(qedf->bdq_prod_idx, qedf->bdq_primary_prod);
+ tmp = readw(qedf->bdq_primary_prod);
+ writew(qedf->bdq_prod_idx, qedf->bdq_secondary_prod);
+ tmp = readw(qedf->bdq_secondary_prod);
+
+ spin_unlock_irqrestore(&qedf->hba_lock, flags);
+}
diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
new file mode 100644
index 0000000..9efbafb
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -0,0 +1,3335 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/device.h>
+#include <linux/highmem.h>
+#include <linux/crc32.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/kthread.h>
+#include <scsi/libfc.h>
+#include <scsi/scsi_host.h>
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <linux/cpu.h>
+#include "qedf.h"
+
+const struct qed_fcoe_ops *qed_ops;
+
+static int qedf_probe(struct pci_dev *pdev, const struct pci_device_id *id);
+static void qedf_remove(struct pci_dev *pdev);
+
+extern struct qedf_debugfs_ops qedf_debugfs_ops;
+extern struct file_operations qedf_dbg_fops;
+
+/*
+ * Driver module parameters.
+ */
+static unsigned int qedf_dev_loss_tmo = 60;
+module_param_named(dev_loss_tmo, qedf_dev_loss_tmo, int, S_IRUGO);
+MODULE_PARM_DESC(dev_loss_tmo, " dev_loss_tmo setting for attached "
+ "remote ports (default 60)");
+
+uint qedf_debug = QEDF_LOG_INFO;
+module_param_named(debug, qedf_debug, uint, S_IRUGO);
+MODULE_PARM_DESC(qedf_debug, " Debug mask. Pass '1' to enable default debugging"
+ " mask");
+
+static uint qedf_fipvlan_retries = 30;
+module_param_named(fipvlan_retries, qedf_fipvlan_retries, int, S_IRUGO);
+MODULE_PARM_DESC(fipvlan_retries, " Number of FIP VLAN requests to attempt "
+ "before giving up (default 30)");
+
+static uint qedf_fallback_vlan = QEDF_FALLBACK_VLAN;
+module_param_named(fallback_vlan, qedf_fallback_vlan, int, S_IRUGO);
+MODULE_PARM_DESC(fallback_vlan, " VLAN ID to try if fip vlan request fails "
+ "(default 1002).");
+
+static uint qedf_default_prio = QEDF_DEFAULT_PRIO;
+module_param_named(default_prio, qedf_default_prio, int, S_IRUGO);
+MODULE_PARM_DESC(default_prio, " Default 802.1q priority for FIP and FCoE"
+ " traffic (default 3).");
+
+uint qedf_dump_frames;
+module_param_named(dump_frames, qedf_dump_frames, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(dump_frames, " Print the skb data of FIP and FCoE frames "
+ "(default off)");
+
+static uint qedf_queue_depth;
+module_param_named(queue_depth, qedf_queue_depth, int, S_IRUGO);
+MODULE_PARM_DESC(queue_depth, " Sets the queue depth for all LUNs discovered "
+ "by the qedf driver. Default is 0 (use OS default).");
+
+uint qedf_io_tracing;
+module_param_named(io_tracing, qedf_io_tracing, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(io_tracing, " Enable logging of SCSI requests/completions "
+ "into trace buffer. (default off).");
+
+static uint qedf_max_lun = MAX_FIBRE_LUNS;
+module_param_named(max_lun, qedf_max_lun, int, S_IRUGO);
+MODULE_PARM_DESC(max_lun, " Sets the maximum luns per target that the driver "
+ "supports. (default 0xffffffff)");
+
+uint qedf_link_down_tmo;
+module_param_named(link_down_tmo, qedf_link_down_tmo, int, S_IRUGO);
+MODULE_PARM_DESC(link_down_tmo, " Delays informing the fcoe transport that the "
+ "link is down by N seconds.");
+
+bool qedf_retry_delay;
+module_param_named(retry_delay, qedf_retry_delay, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(retry_delay, " Enable/disable handling of FCP_RSP IU retry "
+ "delay handling (default off).");
+
+static uint qedf_dp_module;
+module_param_named(dp_module, qedf_dp_module, uint, S_IRUGO);
+MODULE_PARM_DESC(dp_module, " bit flags control for verbose printk passed "
+ "qed module during probe.");
+
+static uint qedf_dp_level;
+module_param_named(dp_level, qedf_dp_level, uint, S_IRUGO);
+MODULE_PARM_DESC(dp_level, " printk verbosity control passed to qed module "
+ "during probe (0-3: 0 more verbose).");
+
+struct workqueue_struct *qedf_io_wq;
+
+static struct fcoe_percpu_s qedf_global;
+static DEFINE_SPINLOCK(qedf_global_lock);
+
+static struct kmem_cache *qedf_io_work_cache;
+
+void qedf_set_vlan_id(struct qedf_ctx *qedf, int vlan_id)
+{
+ qedf->vlan_id = vlan_id;
+ qedf->vlan_id |= qedf_default_prio << VLAN_PRIO_SHIFT;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Setting vlan_id=%04x "
+ "prio=%d.\n", vlan_id, qedf_default_prio);
+}
+
+/* Returns true if we have a valid vlan, false otherwise */
+static bool qedf_initiate_fipvlan_req(struct qedf_ctx *qedf)
+{
+ int rc;
+
+ if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Link not up.\n");
+ return false;
+ }
+
+ while (qedf->fipvlan_retries--) {
+ if (qedf->vlan_id > 0)
+ return true;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Retry %d.\n", qedf->fipvlan_retries);
+ init_completion(&qedf->fipvlan_compl);
+ qedf_fcoe_send_vlan_req(qedf);
+ rc = wait_for_completion_timeout(&qedf->fipvlan_compl,
+ 1 * HZ);
+ if (rc > 0) {
+ fcoe_ctlr_link_up(&qedf->ctlr);
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static void qedf_handle_link_update(struct work_struct *work)
+{
+ struct qedf_ctx *qedf =
+ container_of(work, struct qedf_ctx, link_update.work);
+ int rc;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Entered.\n");
+
+ if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
+ rc = qedf_initiate_fipvlan_req(qedf);
+ if (rc)
+ return;
+ /*
+ * If we get here then we never received a repsonse to our
+ * fip vlan request so set the vlan_id to the default and
+ * tell FCoE that the link is up
+ */
+ QEDF_WARN(&(qedf->dbg_ctx), "Did not receive FIP VLAN "
+ "response, falling back to default VLAN %d.\n",
+ qedf_fallback_vlan);
+ qedf_set_vlan_id(qedf, QEDF_FALLBACK_VLAN);
+
+ /*
+ * Zero out data_src_addr so we'll update it with the new
+ * lport port_id
+ */
+ eth_zero_addr(qedf->data_src_addr);
+ fcoe_ctlr_link_up(&qedf->ctlr);
+ } else if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN) {
+ /*
+ * If we hit here and link_down_tmo_valid is still 1 it means
+ * that link_down_tmo timed out so set it to 0 to make sure any
+ * other readers have accurate state.
+ */
+ atomic_set(&qedf->link_down_tmo_valid, 0);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Calling fcoe_ctlr_link_down().\n");
+ fcoe_ctlr_link_down(&qedf->ctlr);
+ qedf_wait_for_upload(qedf);
+ /* Reset the number of FIP VLAN retries */
+ qedf->fipvlan_retries = qedf_fipvlan_retries;
+ }
+}
+
+static void qedf_flogi_resp(struct fc_seq *seq, struct fc_frame *fp,
+ void *arg)
+{
+ struct fc_exch *exch = fc_seq_exch(seq);
+ struct fc_lport *lport = exch->lp;
+ struct qedf_ctx *qedf = lport_priv(lport);
+
+ if (!qedf) {
+ QEDF_ERR(NULL, "qedf is NULL.\n");
+ return;
+ }
+
+ /*
+ * If ERR_PTR is set then don't try to stat anything as it will cause
+ * a crash when we access fp.
+ */
+ if (IS_ERR(fp)) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "fp has IS_ERR() set.\n");
+ goto skip_stat;
+ }
+
+ /* Log stats for FLOGI reject */
+ if (fc_frame_payload_op(fp) == ELS_LS_RJT)
+ qedf->flogi_failed++;
+
+ /* Complete flogi_compl so we can proceed to sending ADISCs */
+ complete(&qedf->flogi_compl);
+
+skip_stat:
+ /* Report response to libfc */
+ fc_lport_flogi_resp(seq, fp, lport);
+}
+
+static struct fc_seq *qedf_elsct_send(struct fc_lport *lport, u32 did,
+ struct fc_frame *fp, unsigned int op,
+ void (*resp)(struct fc_seq *,
+ struct fc_frame *,
+ void *),
+ void *arg, u32 timeout)
+{
+ struct qedf_ctx *qedf = lport_priv(lport);
+
+ /*
+ * Intercept FLOGI for statistic purposes. Note we use the resp
+ * callback to tell if this is really a flogi.
+ */
+ if (resp == fc_lport_flogi_resp) {
+ qedf->flogi_cnt++;
+ return fc_elsct_send(lport, did, fp, op, qedf_flogi_resp,
+ arg, timeout);
+ }
+
+ return fc_elsct_send(lport, did, fp, op, resp, arg, timeout);
+}
+
+int qedf_send_flogi(struct qedf_ctx *qedf)
+{
+ struct fc_lport *lport;
+ struct fc_frame *fp;
+
+ lport = qedf->lport;
+
+ if (!lport->tt.elsct_send)
+ return -EINVAL;
+
+ fp = fc_frame_alloc(lport, sizeof(struct fc_els_flogi));
+ if (!fp) {
+ QEDF_ERR(&(qedf->dbg_ctx), "fc_frame_alloc failed.\n");
+ return -ENOMEM;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+ "Sending FLOGI to reestablish session with switch.\n");
+ lport->tt.elsct_send(lport, FC_FID_FLOGI, fp,
+ ELS_FLOGI, qedf_flogi_resp, lport, lport->r_a_tov);
+
+ init_completion(&qedf->flogi_compl);
+
+ return 0;
+}
+
+struct qedf_tmp_rdata_item {
+ struct fc_rport_priv *rdata;
+ struct list_head list;
+};
+
+/*
+ * This function is called if link_down_tmo is in use. If we get a link up and
+ * link_down_tmo has not expired then use just FLOGI/ADISC to recover our
+ * sessions with targets. Otherwise, just call fcoe_ctlr_link_up().
+ */
+static void qedf_link_recovery(struct work_struct *work)
+{
+ struct qedf_ctx *qedf =
+ container_of(work, struct qedf_ctx, link_recovery.work);
+ struct qedf_rport *fcport;
+ struct fc_rport_priv *rdata;
+ struct qedf_tmp_rdata_item *rdata_item, *tmp_rdata_item;
+ bool rc;
+ int retries = 30;
+ int rval, i;
+ struct list_head rdata_login_list;
+
+ INIT_LIST_HEAD(&rdata_login_list);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Link down tmo did not expire.\n");
+
+ /*
+ * Essentially reset the fcoe_ctlr here without affecting the state
+ * of the libfc structs.
+ */
+ qedf->ctlr.state = FIP_ST_LINK_WAIT;
+ fcoe_ctlr_link_down(&qedf->ctlr);
+
+ /*
+ * Bring the link up before we send the fipvlan request so libfcoe
+ * can select a new fcf in parallel
+ */
+ fcoe_ctlr_link_up(&qedf->ctlr);
+
+ /* Since the link when down and up to verify which vlan we're on */
+ qedf->fipvlan_retries = qedf_fipvlan_retries;
+ rc = qedf_initiate_fipvlan_req(qedf);
+ if (!rc)
+ return;
+
+ /*
+ * We need to wait for an FCF to be selected due to the
+ * fcoe_ctlr_link_up other the FLOGI will be rejected.
+ */
+ while (retries > 0) {
+ if (qedf->ctlr.sel_fcf) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "FCF reselected, proceeding with FLOGI.\n");
+ break;
+ }
+ msleep(500);
+ retries--;
+ }
+
+ if (retries < 1) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Exhausted retries waiting for "
+ "FCF selection.\n");
+ return;
+ }
+
+ rval = qedf_send_flogi(qedf);
+ if (rval)
+ return;
+
+ /* Wait for FLOGI completion before proceeding with sending ADISCs */
+ i = wait_for_completion_timeout(&qedf->flogi_compl,
+ qedf->lport->r_a_tov);
+ if (i == 0) {
+ QEDF_ERR(&(qedf->dbg_ctx), "FLOGI timed out.\n");
+ return;
+ }
+
+ /*
+ * Call lport->tt.rport_login which will cause libfc to send an
+ * ADISC since the rport is in state ready.
+ */
+ rcu_read_lock();
+ list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
+ rdata = fcport->rdata;
+ if (rdata == NULL)
+ continue;
+ rdata_item = kzalloc(sizeof(struct qedf_tmp_rdata_item),
+ GFP_ATOMIC);
+ if (!rdata_item)
+ continue;
+ if (kref_get_unless_zero(&rdata->kref)) {
+ rdata_item->rdata = rdata;
+ list_add(&rdata_item->list, &rdata_login_list);
+ } else
+ kfree(rdata_item);
+ }
+ rcu_read_unlock();
+ /*
+ * Do the fc_rport_login outside of the rcu lock so we don't take a
+ * mutex in an atomic context.
+ */
+ list_for_each_entry_safe(rdata_item, tmp_rdata_item, &rdata_login_list,
+ list) {
+ list_del(&rdata_item->list);
+ fc_rport_login(rdata_item->rdata);
+ kref_put(&rdata->kref, fc_rport_destroy);
+ kfree(rdata_item);
+ }
+}
+
+static void qedf_update_link_speed(struct qedf_ctx *qedf,
+ struct qed_link_output *link)
+{
+ struct fc_lport *lport = qedf->lport;
+
+ lport->link_speed = FC_PORTSPEED_UNKNOWN;
+ lport->link_supported_speeds = FC_PORTSPEED_UNKNOWN;
+
+ /* Set fc_host link speed */
+ switch (link->speed) {
+ case 10000:
+ lport->link_speed = FC_PORTSPEED_10GBIT;
+ break;
+ case 25000:
+ lport->link_speed = FC_PORTSPEED_25GBIT;
+ break;
+ case 40000:
+ lport->link_speed = FC_PORTSPEED_40GBIT;
+ break;
+ case 50000:
+ lport->link_speed = FC_PORTSPEED_50GBIT;
+ break;
+ case 100000:
+ lport->link_speed = FC_PORTSPEED_100GBIT;
+ break;
+ default:
+ lport->link_speed = FC_PORTSPEED_UNKNOWN;
+ break;
+ }
+
+ /*
+ * Set supported link speed by querying the supported
+ * capabilities of the link.
+ */
+ if (link->supported_caps & SUPPORTED_10000baseKR_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
+ if (link->supported_caps & SUPPORTED_25000baseKR_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_25GBIT;
+ if (link->supported_caps & SUPPORTED_40000baseLR4_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_40GBIT;
+ if (link->supported_caps & SUPPORTED_50000baseKR2_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_50GBIT;
+ if (link->supported_caps & SUPPORTED_100000baseKR4_Full)
+ lport->link_supported_speeds |= FC_PORTSPEED_100GBIT;
+ fc_host_supported_speeds(lport->host) = lport->link_supported_speeds;
+}
+
+static void qedf_link_update(void *dev, struct qed_link_output *link)
+{
+ struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
+
+ if (link->link_up) {
+ QEDF_ERR(&(qedf->dbg_ctx), "LINK UP (%d GB/s).\n",
+ link->speed / 1000);
+
+ /* Cancel any pending link down work */
+ cancel_delayed_work(&qedf->link_update);
+
+ atomic_set(&qedf->link_state, QEDF_LINK_UP);
+ qedf_update_link_speed(qedf, link);
+
+ if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE) {
+ QEDF_ERR(&(qedf->dbg_ctx), "DCBx done.\n");
+ if (atomic_read(&qedf->link_down_tmo_valid) > 0)
+ queue_delayed_work(qedf->link_update_wq,
+ &qedf->link_recovery, 0);
+ else
+ queue_delayed_work(qedf->link_update_wq,
+ &qedf->link_update, 0);
+ atomic_set(&qedf->link_down_tmo_valid, 0);
+ }
+
+ } else {
+ QEDF_ERR(&(qedf->dbg_ctx), "LINK DOWN.\n");
+
+ atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
+ atomic_set(&qedf->dcbx, QEDF_DCBX_PENDING);
+ /*
+ * Flag that we're waiting for the link to come back up before
+ * informing the fcoe layer of the event.
+ */
+ if (qedf_link_down_tmo > 0) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Starting link down tmo.\n");
+ atomic_set(&qedf->link_down_tmo_valid, 1);
+ }
+ qedf->vlan_id = 0;
+ qedf_update_link_speed(qedf, link);
+ queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
+ qedf_link_down_tmo * HZ);
+ }
+}
+
+
+static void qedf_dcbx_handler(void *dev, struct qed_dcbx_get *get, u32 mib_type)
+{
+ struct qedf_ctx *qedf = (struct qedf_ctx *)dev;
+
+ QEDF_ERR(&(qedf->dbg_ctx), "DCBx event valid=%d enabled=%d fcoe "
+ "prio=%d.\n", get->operational.valid, get->operational.enabled,
+ get->operational.app_prio.fcoe);
+
+ if (get->operational.enabled && get->operational.valid) {
+ /* If DCBX was already negotiated on link up then just exit */
+ if (atomic_read(&qedf->dcbx) == QEDF_DCBX_DONE) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "DCBX already set on link up.\n");
+ return;
+ }
+
+ atomic_set(&qedf->dcbx, QEDF_DCBX_DONE);
+
+ if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) {
+ if (atomic_read(&qedf->link_down_tmo_valid) > 0)
+ queue_delayed_work(qedf->link_update_wq,
+ &qedf->link_recovery, 0);
+ else
+ queue_delayed_work(qedf->link_update_wq,
+ &qedf->link_update, 0);
+ atomic_set(&qedf->link_down_tmo_valid, 0);
+ }
+ }
+
+}
+
+static u32 qedf_get_login_failures(void *cookie)
+{
+ struct qedf_ctx *qedf;
+
+ qedf = (struct qedf_ctx *)cookie;
+ return qedf->flogi_failed;
+}
+
+static struct qed_fcoe_cb_ops qedf_cb_ops = {
+ {
+ .link_update = qedf_link_update,
+ .dcbx_aen = qedf_dcbx_handler,
+ }
+};
+
+/*
+ * Various transport templates.
+ */
+
+static struct scsi_transport_template *qedf_fc_transport_template;
+static struct scsi_transport_template *qedf_fc_vport_transport_template;
+
+/*
+ * SCSI EH handlers
+ */
+static int qedf_eh_abort(struct scsi_cmnd *sc_cmd)
+{
+ struct fc_rport *rport = starget_to_rport(scsi_target(sc_cmd->device));
+ struct fc_rport_libfc_priv *rp = rport->dd_data;
+ struct qedf_rport *fcport;
+ struct fc_lport *lport;
+ struct qedf_ctx *qedf;
+ struct qedf_ioreq *io_req;
+ int rc = FAILED;
+ int rval;
+
+ if (fc_remote_port_chkready(rport)) {
+ QEDF_ERR(NULL, "rport not ready\n");
+ goto out;
+ }
+
+ lport = shost_priv(sc_cmd->device->host);
+ qedf = (struct qedf_ctx *)lport_priv(lport);
+
+ if ((lport->state != LPORT_ST_READY) || !(lport->link_up)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "link not ready.\n");
+ goto out;
+ }
+
+ fcport = (struct qedf_rport *)&rp[1];
+
+ io_req = (struct qedf_ioreq *)sc_cmd->SCp.ptr;
+ if (!io_req) {
+ QEDF_ERR(&(qedf->dbg_ctx), "io_req is NULL.\n");
+ rc = SUCCESS;
+ goto out;
+ }
+
+ if (!test_bit(QEDF_CMD_OUTSTANDING, &io_req->flags) ||
+ test_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags) ||
+ test_bit(QEDF_CMD_IN_ABORT, &io_req->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "io_req xid=0x%x already in "
+ "cleanup or abort processing or already "
+ "completed.\n", io_req->xid);
+ rc = SUCCESS;
+ goto out;
+ }
+
+ QEDF_ERR(&(qedf->dbg_ctx), "Aborting io_req sc_cmd=%p xid=0x%x "
+ "fp_idx=%d.\n", sc_cmd, io_req->xid, io_req->fp_idx);
+
+ if (qedf->stop_io_on_error) {
+ qedf_stop_all_io(qedf);
+ rc = SUCCESS;
+ goto out;
+ }
+
+ init_completion(&io_req->abts_done);
+ rval = qedf_initiate_abts(io_req, true);
+ if (rval) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to queue ABTS.\n");
+ goto out;
+ }
+
+ wait_for_completion(&io_req->abts_done);
+
+ if (io_req->event == QEDF_IOREQ_EV_ABORT_SUCCESS ||
+ io_req->event == QEDF_IOREQ_EV_ABORT_FAILED ||
+ io_req->event == QEDF_IOREQ_EV_CLEANUP_SUCCESS) {
+ /*
+ * If we get a reponse to the abort this is success from
+ * the perspective that all references to the command have
+ * been removed from the driver and firmware
+ */
+ rc = SUCCESS;
+ } else {
+ /* If the abort and cleanup failed then return a failure */
+ rc = FAILED;
+ }
+
+ if (rc == SUCCESS)
+ QEDF_ERR(&(qedf->dbg_ctx), "ABTS succeeded, xid=0x%x.\n",
+ io_req->xid);
+ else
+ QEDF_ERR(&(qedf->dbg_ctx), "ABTS failed, xid=0x%x.\n",
+ io_req->xid);
+
+out:
+ return rc;
+}
+
+static int qedf_eh_target_reset(struct scsi_cmnd *sc_cmd)
+{
+ QEDF_ERR(NULL, "TARGET RESET Issued...");
+ return qedf_initiate_tmf(sc_cmd, FCP_TMF_TGT_RESET);
+}
+
+static int qedf_eh_device_reset(struct scsi_cmnd *sc_cmd)
+{
+ QEDF_ERR(NULL, "LUN RESET Issued...\n");
+ return qedf_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET);
+}
+
+void qedf_wait_for_upload(struct qedf_ctx *qedf)
+{
+ while (1) {
+ if (atomic_read(&qedf->num_offloads))
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Waiting for all uploads to complete.\n");
+ else
+ break;
+ msleep(500);
+ }
+}
+
+/* Reset the host by gracefully logging out and then logging back in */
+static int qedf_eh_host_reset(struct scsi_cmnd *sc_cmd)
+{
+ struct fc_lport *lport;
+ struct qedf_ctx *qedf;
+
+ lport = shost_priv(sc_cmd->device->host);
+
+ if (lport->vport) {
+ QEDF_ERR(NULL, "Cannot issue host reset on NPIV port.\n");
+ return SUCCESS;
+ }
+
+ qedf = (struct qedf_ctx *)lport_priv(lport);
+
+ if (atomic_read(&qedf->link_state) == QEDF_LINK_DOWN ||
+ test_bit(QEDF_UNLOADING, &qedf->flags))
+ return FAILED;
+
+ QEDF_ERR(&(qedf->dbg_ctx), "HOST RESET Issued...");
+
+ /* For host reset, essentially do a soft link up/down */
+ atomic_set(&qedf->link_state, QEDF_LINK_DOWN);
+ atomic_set(&qedf->dcbx, QEDF_DCBX_PENDING);
+ queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
+ 0);
+ qedf_wait_for_upload(qedf);
+ atomic_set(&qedf->link_state, QEDF_LINK_UP);
+ qedf->vlan_id = 0;
+ queue_delayed_work(qedf->link_update_wq, &qedf->link_update,
+ 0);
+
+ return SUCCESS;
+}
+
+static int qedf_slave_configure(struct scsi_device *sdev)
+{
+ if (qedf_queue_depth) {
+ scsi_change_queue_depth(sdev, qedf_queue_depth);
+ }
+
+ return 0;
+}
+
+static struct scsi_host_template qedf_host_template = {
+ .module = THIS_MODULE,
+ .name = QEDF_MODULE_NAME,
+ .this_id = -1,
+ .cmd_per_lun = 3,
+ .use_clustering = ENABLE_CLUSTERING,
+ .max_sectors = 0xffff,
+ .queuecommand = qedf_queuecommand,
+ .shost_attrs = qedf_host_attrs,
+ .eh_abort_handler = qedf_eh_abort,
+ .eh_device_reset_handler = qedf_eh_device_reset, /* lun reset */
+ .eh_target_reset_handler = qedf_eh_target_reset, /* target reset */
+ .eh_host_reset_handler = qedf_eh_host_reset,
+ .slave_configure = qedf_slave_configure,
+ .dma_boundary = QED_HW_DMA_BOUNDARY,
+ .sg_tablesize = QEDF_MAX_BDS_PER_CMD,
+ .can_queue = FCOE_PARAMS_NUM_TASKS,
+};
+
+static int qedf_get_paged_crc_eof(struct sk_buff *skb, int tlen)
+{
+ int rc;
+
+ spin_lock(&qedf_global_lock);
+ rc = fcoe_get_paged_crc_eof(skb, tlen, &qedf_global);
+ spin_unlock(&qedf_global_lock);
+
+ return rc;
+}
+
+static struct qedf_rport *qedf_fcport_lookup(struct qedf_ctx *qedf, u32 port_id)
+{
+ struct qedf_rport *fcport;
+ struct fc_rport_priv *rdata;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(fcport, &qedf->fcports, peers) {
+ rdata = fcport->rdata;
+ if (rdata == NULL)
+ continue;
+ if (rdata->ids.port_id == port_id) {
+ rcu_read_unlock();
+ return fcport;
+ }
+ }
+ rcu_read_unlock();
+
+ /* Return NULL to caller to let them know fcport was not found */
+ return NULL;
+}
+
+/* Transmits an ELS frame over an offloaded session */
+static int qedf_xmit_l2_frame(struct qedf_rport *fcport, struct fc_frame *fp)
+{
+ struct fc_frame_header *fh;
+ int rc = 0;
+
+ fh = fc_frame_header_get(fp);
+ if ((fh->fh_type == FC_TYPE_ELS) &&
+ (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
+ switch (fc_frame_payload_op(fp)) {
+ case ELS_ADISC:
+ qedf_send_adisc(fcport, fp);
+ rc = 1;
+ break;
+ }
+ }
+
+ return rc;
+}
+
+/**
+ * qedf_xmit - qedf FCoE frame transmit function
+ *
+ */
+static int qedf_xmit(struct fc_lport *lport, struct fc_frame *fp)
+{
+ struct fc_lport *base_lport;
+ struct qedf_ctx *qedf;
+ struct ethhdr *eh;
+ struct fcoe_crc_eof *cp;
+ struct sk_buff *skb;
+ struct fc_frame_header *fh;
+ struct fcoe_hdr *hp;
+ u8 sof, eof;
+ u32 crc;
+ unsigned int hlen, tlen, elen;
+ int wlen;
+ struct fc_stats *stats;
+ struct fc_lport *tmp_lport;
+ struct fc_lport *vn_port = NULL;
+ struct qedf_rport *fcport;
+ int rc;
+ u16 vlan_tci = 0;
+
+ qedf = (struct qedf_ctx *)lport_priv(lport);
+
+ fh = fc_frame_header_get(fp);
+ skb = fp_skb(fp);
+
+ /* Filter out traffic to other NPIV ports on the same host */
+ if (lport->vport)
+ base_lport = shost_priv(vport_to_shost(lport->vport));
+ else
+ base_lport = lport;
+
+ /* Flag if the destination is the base port */
+ if (base_lport->port_id == ntoh24(fh->fh_d_id)) {
+ vn_port = base_lport;
+ } else {
+ /* Got through the list of vports attached to the base_lport
+ * and see if we have a match with the destination address.
+ */
+ list_for_each_entry(tmp_lport, &base_lport->vports, list) {
+ if (tmp_lport->port_id == ntoh24(fh->fh_d_id)) {
+ vn_port = tmp_lport;
+ break;
+ }
+ }
+ }
+ if (vn_port && ntoh24(fh->fh_d_id) != FC_FID_FLOGI) {
+ struct fc_rport_priv *rdata = NULL;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "Dropping FCoE frame to %06x.\n", ntoh24(fh->fh_d_id));
+ kfree_skb(skb);
+ rdata = fc_rport_lookup(lport, ntoh24(fh->fh_d_id));
+ if (rdata)
+ rdata->retries = lport->max_rport_retry_count;
+ return -EINVAL;
+ }
+ /* End NPIV filtering */
+
+ if (!qedf->ctlr.sel_fcf) {
+ kfree_skb(skb);
+ return 0;
+ }
+
+ if (!test_bit(QEDF_LL2_STARTED, &qedf->flags)) {
+ QEDF_WARN(&(qedf->dbg_ctx), "LL2 not started\n");
+ kfree_skb(skb);
+ return 0;
+ }
+
+ if (atomic_read(&qedf->link_state) != QEDF_LINK_UP) {
+ QEDF_WARN(&(qedf->dbg_ctx), "qedf link down\n");
+ kfree_skb(skb);
+ return 0;
+ }
+
+ if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
+ if (fcoe_ctlr_els_send(&qedf->ctlr, lport, skb))
+ return 0;
+ }
+
+ /* Check to see if this needs to be sent on an offloaded session */
+ fcport = qedf_fcport_lookup(qedf, ntoh24(fh->fh_d_id));
+
+ if (fcport && test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ rc = qedf_xmit_l2_frame(fcport, fp);
+ /*
+ * If the frame was successfully sent over the middle path
+ * then do not try to also send it over the LL2 path
+ */
+ if (rc)
+ return 0;
+ }
+
+ sof = fr_sof(fp);
+ eof = fr_eof(fp);
+
+ elen = sizeof(struct ethhdr);
+ hlen = sizeof(struct fcoe_hdr);
+ tlen = sizeof(struct fcoe_crc_eof);
+ wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
+
+ skb->ip_summed = CHECKSUM_NONE;
+ crc = fcoe_fc_crc(fp);
+
+ /* copy port crc and eof to the skb buff */
+ if (skb_is_nonlinear(skb)) {
+ skb_frag_t *frag;
+
+ if (qedf_get_paged_crc_eof(skb, tlen)) {
+ kfree_skb(skb);
+ return -ENOMEM;
+ }
+ frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
+ cp = kmap_atomic(skb_frag_page(frag)) + frag->page_offset;
+ } else {
+ cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
+ }
+
+ memset(cp, 0, sizeof(*cp));
+ cp->fcoe_eof = eof;
+ cp->fcoe_crc32 = cpu_to_le32(~crc);
+ if (skb_is_nonlinear(skb)) {
+ kunmap_atomic(cp);
+ cp = NULL;
+ }
+
+
+ /* adjust skb network/transport offsets to match mac/fcoe/port */
+ skb_push(skb, elen + hlen);
+ skb_reset_mac_header(skb);
+ skb_reset_network_header(skb);
+ skb->mac_len = elen;
+ skb->protocol = htons(ETH_P_FCOE);
+
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), qedf->vlan_id);
+
+ /* fill up mac and fcoe headers */
+ eh = eth_hdr(skb);
+ eh->h_proto = htons(ETH_P_FCOE);
+ if (qedf->ctlr.map_dest)
+ fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
+ else
+ /* insert GW address */
+ ether_addr_copy(eh->h_dest, qedf->ctlr.dest_addr);
+
+ /* Set the source MAC address */
+ fc_fcoe_set_mac(eh->h_source, fh->fh_s_id);
+
+ hp = (struct fcoe_hdr *)(eh + 1);
+ memset(hp, 0, sizeof(*hp));
+ if (FC_FCOE_VER)
+ FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
+ hp->fcoe_sof = sof;
+
+ /*update tx stats */
+ stats = per_cpu_ptr(lport->stats, get_cpu());
+ stats->TxFrames++;
+ stats->TxWords += wlen;
+ put_cpu();
+
+ /* Get VLAN ID from skb for printing purposes */
+ __vlan_hwaccel_get_tag(skb, &vlan_tci);
+
+ /* send down to lld */
+ fr_dev(fp) = lport;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FCoE frame send: "
+ "src=%06x dest=%06x r_ctl=%x type=%x vlan=%04x.\n",
+ ntoh24(fh->fh_s_id), ntoh24(fh->fh_d_id), fh->fh_r_ctl, fh->fh_type,
+ vlan_tci);
+ if (qedf_dump_frames)
+ print_hex_dump(KERN_WARNING, "fcoe: ", DUMP_PREFIX_OFFSET, 16,
+ 1, skb->data, skb->len, false);
+ qed_ops->ll2->start_xmit(qedf->cdev, skb);
+
+ return 0;
+}
+
+static int qedf_alloc_sq(struct qedf_ctx *qedf, struct qedf_rport *fcport)
+{
+ int rval = 0;
+ u32 *pbl;
+ dma_addr_t page;
+ int num_pages;
+
+ /* Calculate appropriate queue and PBL sizes */
+ fcport->sq_mem_size = SQ_NUM_ENTRIES * sizeof(struct fcoe_wqe);
+ fcport->sq_mem_size = ALIGN(fcport->sq_mem_size, QEDF_PAGE_SIZE);
+ fcport->sq_pbl_size = (fcport->sq_mem_size / QEDF_PAGE_SIZE) *
+ sizeof(void *);
+ fcport->sq_pbl_size = fcport->sq_pbl_size + QEDF_PAGE_SIZE;
+
+ fcport->sq = dma_alloc_coherent(&qedf->pdev->dev, fcport->sq_mem_size,
+ &fcport->sq_dma, GFP_KERNEL);
+ if (!fcport->sq) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send "
+ "queue.\n");
+ rval = 1;
+ goto out;
+ }
+ memset(fcport->sq, 0, fcport->sq_mem_size);
+
+ fcport->sq_pbl = dma_alloc_coherent(&qedf->pdev->dev,
+ fcport->sq_pbl_size, &fcport->sq_pbl_dma, GFP_KERNEL);
+ if (!fcport->sq_pbl) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate send "
+ "queue PBL.\n");
+ rval = 1;
+ goto out_free_sq;
+ }
+ memset(fcport->sq_pbl, 0, fcport->sq_pbl_size);
+
+ /* Create PBL */
+ num_pages = fcport->sq_mem_size / QEDF_PAGE_SIZE;
+ page = fcport->sq_dma;
+ pbl = (u32 *)fcport->sq_pbl;
+
+ while (num_pages--) {
+ *pbl = U64_LO(page);
+ pbl++;
+ *pbl = U64_HI(page);
+ pbl++;
+ page += QEDF_PAGE_SIZE;
+ }
+
+ return rval;
+
+out_free_sq:
+ dma_free_coherent(&qedf->pdev->dev, fcport->sq_mem_size, fcport->sq,
+ fcport->sq_dma);
+out:
+ return rval;
+}
+
+static void qedf_free_sq(struct qedf_ctx *qedf, struct qedf_rport *fcport)
+{
+ if (fcport->sq_pbl)
+ dma_free_coherent(&qedf->pdev->dev, fcport->sq_pbl_size,
+ fcport->sq_pbl, fcport->sq_pbl_dma);
+ if (fcport->sq)
+ dma_free_coherent(&qedf->pdev->dev, fcport->sq_mem_size,
+ fcport->sq, fcport->sq_dma);
+}
+
+static int qedf_offload_connection(struct qedf_ctx *qedf,
+ struct qedf_rport *fcport)
+{
+ struct qed_fcoe_params_offload conn_info;
+ u32 port_id;
+ u8 lport_src_id[3];
+ int rval;
+ uint16_t total_sqe = (fcport->sq_mem_size / sizeof(struct fcoe_wqe));
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Offloading connection "
+ "portid=%06x.\n", fcport->rdata->ids.port_id);
+ rval = qed_ops->acquire_conn(qedf->cdev, &fcport->handle,
+ &fcport->fw_cid, &fcport->p_doorbell);
+ if (rval) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not acquire connection "
+ "for portid=%06x.\n", fcport->rdata->ids.port_id);
+ rval = 1; /* For some reason qed returns 0 on failure here */
+ goto out;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "portid=%06x "
+ "fw_cid=%08x handle=%d.\n", fcport->rdata->ids.port_id,
+ fcport->fw_cid, fcport->handle);
+
+ memset(&conn_info, 0, sizeof(struct qed_fcoe_params_offload));
+
+ /* Fill in the offload connection info */
+ conn_info.sq_pbl_addr = fcport->sq_pbl_dma;
+
+ conn_info.sq_curr_page_addr = (dma_addr_t)(*(u64 *)fcport->sq_pbl);
+ conn_info.sq_next_page_addr =
+ (dma_addr_t)(*(u64 *)(fcport->sq_pbl + 8));
+
+ /* Need to use our FCoE MAC for the offload session */
+ port_id = fc_host_port_id(qedf->lport->host);
+ lport_src_id[2] = (port_id & 0x000000FF);
+ lport_src_id[1] = (port_id & 0x0000FF00) >> 8;
+ lport_src_id[0] = (port_id & 0x00FF0000) >> 16;
+ fc_fcoe_set_mac(conn_info.src_mac, lport_src_id);
+
+ ether_addr_copy(conn_info.dst_mac, qedf->ctlr.dest_addr);
+
+ conn_info.tx_max_fc_pay_len = fcport->rdata->maxframe_size;
+ conn_info.e_d_tov_timer_val = qedf->lport->e_d_tov / 20;
+ conn_info.rec_tov_timer_val = 3; /* I think this is what E3 was */
+ conn_info.rx_max_fc_pay_len = fcport->rdata->maxframe_size;
+
+ /* Set VLAN data */
+ conn_info.vlan_tag = qedf->vlan_id <<
+ FCOE_CONN_OFFLOAD_RAMROD_DATA_VLAN_ID_SHIFT;
+ conn_info.vlan_tag |=
+ qedf_default_prio << FCOE_CONN_OFFLOAD_RAMROD_DATA_PRIORITY_SHIFT;
+ conn_info.flags |= (FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_MASK <<
+ FCOE_CONN_OFFLOAD_RAMROD_DATA_B_VLAN_FLAG_SHIFT);
+
+ /* Set host port source id */
+ port_id = fc_host_port_id(qedf->lport->host);
+ fcport->sid = port_id;
+ conn_info.s_id.addr_hi = (port_id & 0x000000FF);
+ conn_info.s_id.addr_mid = (port_id & 0x0000FF00) >> 8;
+ conn_info.s_id.addr_lo = (port_id & 0x00FF0000) >> 16;
+
+ conn_info.max_conc_seqs_c3 = fcport->rdata->max_seq;
+
+ /* Set remote port destination id */
+ port_id = fcport->rdata->rport->port_id;
+ conn_info.d_id.addr_hi = (port_id & 0x000000FF);
+ conn_info.d_id.addr_mid = (port_id & 0x0000FF00) >> 8;
+ conn_info.d_id.addr_lo = (port_id & 0x00FF0000) >> 16;
+
+ conn_info.def_q_idx = 0; /* Default index for send queue? */
+
+ /* Set FC-TAPE specific flags if needed */
+ if (fcport->dev_type == QEDF_RPORT_TYPE_TAPE) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN,
+ "Enable CONF, REC for portid=%06x.\n",
+ fcport->rdata->ids.port_id);
+ conn_info.flags |= 1 <<
+ FCOE_CONN_OFFLOAD_RAMROD_DATA_B_CONF_REQ_SHIFT;
+ conn_info.flags |=
+ ((fcport->rdata->sp_features & FC_SP_FT_SEQC) ? 1 : 0) <<
+ FCOE_CONN_OFFLOAD_RAMROD_DATA_B_REC_VALID_SHIFT;
+ }
+
+ rval = qed_ops->offload_conn(qedf->cdev, fcport->handle, &conn_info);
+ if (rval) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not offload connection "
+ "for portid=%06x.\n", fcport->rdata->ids.port_id);
+ goto out_free_conn;
+ } else
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Offload "
+ "succeeded portid=%06x total_sqe=%d.\n",
+ fcport->rdata->ids.port_id, total_sqe);
+
+ spin_lock_init(&fcport->rport_lock);
+ atomic_set(&fcport->free_sqes, total_sqe);
+ return 0;
+out_free_conn:
+ qed_ops->release_conn(qedf->cdev, fcport->handle);
+out:
+ return rval;
+}
+
+#define QEDF_TERM_BUFF_SIZE 10
+static void qedf_upload_connection(struct qedf_ctx *qedf,
+ struct qedf_rport *fcport)
+{
+ void *term_params;
+ dma_addr_t term_params_dma;
+
+ /* Term params needs to be a DMA coherent buffer as qed shared the
+ * physical DMA address with the firmware. The buffer may be used in
+ * the receive path so we may eventually have to move this.
+ */
+ term_params = dma_alloc_coherent(&qedf->pdev->dev, QEDF_TERM_BUFF_SIZE,
+ &term_params_dma, GFP_KERNEL);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Uploading connection "
+ "port_id=%06x.\n", fcport->rdata->ids.port_id);
+
+ qed_ops->destroy_conn(qedf->cdev, fcport->handle, term_params_dma);
+ qed_ops->release_conn(qedf->cdev, fcport->handle);
+
+ dma_free_coherent(&qedf->pdev->dev, QEDF_TERM_BUFF_SIZE, term_params,
+ term_params_dma);
+}
+
+static void qedf_cleanup_fcport(struct qedf_ctx *qedf,
+ struct qedf_rport *fcport)
+{
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_CONN, "Cleaning up portid=%06x.\n",
+ fcport->rdata->ids.port_id);
+
+ /* Flush any remaining i/o's before we upload the connection */
+ qedf_flush_active_ios(fcport, -1);
+
+ if (test_and_clear_bit(QEDF_RPORT_SESSION_READY, &fcport->flags))
+ qedf_upload_connection(qedf, fcport);
+ qedf_free_sq(qedf, fcport);
+ fcport->rdata = NULL;
+ fcport->qedf = NULL;
+}
+
+/**
+ * This event_callback is called after successful completion of libfc
+ * initiated target login. qedf can proceed with initiating the session
+ * establishment.
+ */
+static void qedf_rport_event_handler(struct fc_lport *lport,
+ struct fc_rport_priv *rdata,
+ enum fc_rport_event event)
+{
+ struct qedf_ctx *qedf = lport_priv(lport);
+ struct fc_rport *rport = rdata->rport;
+ struct fc_rport_libfc_priv *rp;
+ struct qedf_rport *fcport;
+ u32 port_id;
+ int rval;
+ unsigned long flags;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "event = %d, "
+ "port_id = 0x%x\n", event, rdata->ids.port_id);
+
+ switch (event) {
+ case RPORT_EV_READY:
+ if (!rport) {
+ QEDF_WARN(&(qedf->dbg_ctx), "rport is NULL.\n");
+ break;
+ }
+
+ rp = rport->dd_data;
+ fcport = (struct qedf_rport *)&rp[1];
+ fcport->qedf = qedf;
+
+ if (atomic_read(&qedf->num_offloads) >= QEDF_MAX_SESSIONS) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Not offloading "
+ "portid=0x%x as max number of offloaded sessions "
+ "reached.\n", rdata->ids.port_id);
+ return;
+ }
+
+ /*
+ * Don't try to offload the session again. Can happen when we
+ * get an ADISC
+ */
+ if (test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Session already "
+ "offloaded, portid=0x%x.\n",
+ rdata->ids.port_id);
+ return;
+ }
+
+ if (rport->port_id == FC_FID_DIR_SERV) {
+ /*
+ * qedf_rport structure doesn't exist for
+ * directory server.
+ * We should not come here, as lport will
+ * take care of fabric login
+ */
+ QEDF_WARN(&(qedf->dbg_ctx), "rport struct does not "
+ "exist for dir server port_id=%x\n",
+ rdata->ids.port_id);
+ break;
+ }
+
+ if (rdata->spp_type != FC_TYPE_FCP) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Not offlading since since spp type isn't FCP\n");
+ break;
+ }
+ if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Not FCP target so not offloading\n");
+ break;
+ }
+
+ fcport->rdata = rdata;
+ fcport->rport = rport;
+
+ rval = qedf_alloc_sq(qedf, fcport);
+ if (rval) {
+ qedf_cleanup_fcport(qedf, fcport);
+ break;
+ }
+
+ /* Set device type */
+ if (rdata->flags & FC_RP_FLAGS_RETRY &&
+ rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET &&
+ !(rdata->ids.roles & FC_RPORT_ROLE_FCP_INITIATOR)) {
+ fcport->dev_type = QEDF_RPORT_TYPE_TAPE;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "portid=%06x is a TAPE device.\n",
+ rdata->ids.port_id);
+ } else {
+ fcport->dev_type = QEDF_RPORT_TYPE_DISK;
+ }
+
+ rval = qedf_offload_connection(qedf, fcport);
+ if (rval) {
+ qedf_cleanup_fcport(qedf, fcport);
+ break;
+ }
+
+ /* Add fcport to list of qedf_ctx list of offloaded ports */
+ spin_lock_irqsave(&qedf->hba_lock, flags);
+ list_add_rcu(&fcport->peers, &qedf->fcports);
+ spin_unlock_irqrestore(&qedf->hba_lock, flags);
+
+ /*
+ * Set the session ready bit to let everyone know that this
+ * connection is ready for I/O
+ */
+ set_bit(QEDF_RPORT_SESSION_READY, &fcport->flags);
+ atomic_inc(&qedf->num_offloads);
+
+ break;
+ case RPORT_EV_LOGO:
+ case RPORT_EV_FAILED:
+ case RPORT_EV_STOP:
+ port_id = rdata->ids.port_id;
+ if (port_id == FC_FID_DIR_SERV)
+ break;
+
+ if (!rport) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "port_id=%x - rport notcreated Yet!!\n", port_id);
+ break;
+ }
+ rp = rport->dd_data;
+ /*
+ * Perform session upload. Note that rdata->peers is already
+ * removed from disc->rports list before we get this event.
+ */
+ fcport = (struct qedf_rport *)&rp[1];
+
+ /* Only free this fcport if it is offloaded already */
+ if (test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ set_bit(QEDF_RPORT_UPLOADING_CONNECTION, &fcport->flags);
+ qedf_cleanup_fcport(qedf, fcport);
+
+ /*
+ * Remove fcport to list of qedf_ctx list of offloaded
+ * ports
+ */
+ spin_lock_irqsave(&qedf->hba_lock, flags);
+ list_del_rcu(&fcport->peers);
+ spin_unlock_irqrestore(&qedf->hba_lock, flags);
+
+ clear_bit(QEDF_RPORT_UPLOADING_CONNECTION,
+ &fcport->flags);
+ atomic_dec(&qedf->num_offloads);
+ }
+
+ break;
+
+ case RPORT_EV_NONE:
+ break;
+ }
+}
+
+static void qedf_abort_io(struct fc_lport *lport)
+{
+ /* NO-OP but need to fill in the template */
+}
+
+static void qedf_fcp_cleanup(struct fc_lport *lport)
+{
+ /*
+ * NO-OP but need to fill in template to prevent a NULL
+ * function pointer dereference during link down. I/Os
+ * will be flushed when port is uploaded.
+ */
+}
+
+static struct libfc_function_template qedf_lport_template = {
+ .frame_send = qedf_xmit,
+ .fcp_abort_io = qedf_abort_io,
+ .fcp_cleanup = qedf_fcp_cleanup,
+ .rport_event_callback = qedf_rport_event_handler,
+ .elsct_send = qedf_elsct_send,
+};
+
+static void qedf_fcoe_ctlr_setup(struct qedf_ctx *qedf)
+{
+ fcoe_ctlr_init(&qedf->ctlr, FIP_ST_AUTO);
+
+ qedf->ctlr.send = qedf_fip_send;
+ qedf->ctlr.update_mac = qedf_update_src_mac;
+ qedf->ctlr.get_src_addr = qedf_get_src_mac;
+ ether_addr_copy(qedf->ctlr.ctl_src_addr, qedf->mac);
+}
+
+static int qedf_lport_setup(struct qedf_ctx *qedf)
+{
+ struct fc_lport *lport = qedf->lport;
+
+ lport->link_up = 0;
+ lport->max_retry_count = QEDF_FLOGI_RETRY_CNT;
+ lport->max_rport_retry_count = QEDF_RPORT_RETRY_CNT;
+ lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
+ FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
+ lport->boot_time = jiffies;
+ lport->e_d_tov = 2 * 1000;
+ lport->r_a_tov = 10 * 1000;
+
+ /* Set NPIV support */
+ lport->does_npiv = 1;
+ fc_host_max_npiv_vports(lport->host) = QEDF_MAX_NPIV;
+
+ fc_set_wwnn(lport, qedf->wwnn);
+ fc_set_wwpn(lport, qedf->wwpn);
+
+ fcoe_libfc_config(lport, &qedf->ctlr, &qedf_lport_template, 0);
+
+ /* Allocate the exchange manager */
+ fc_exch_mgr_alloc(lport, FC_CLASS_3, qedf->max_scsi_xid + 1,
+ qedf->max_els_xid, NULL);
+
+ if (fc_lport_init_stats(lport))
+ return -ENOMEM;
+
+ /* Finish lport config */
+ fc_lport_config(lport);
+
+ /* Set max frame size */
+ fc_set_mfs(lport, QEDF_MFS);
+ fc_host_maxframe_size(lport->host) = lport->mfs;
+
+ /* Set default dev_loss_tmo based on module parameter */
+ fc_host_dev_loss_tmo(lport->host) = qedf_dev_loss_tmo;
+
+ /* Set symbolic node name */
+ snprintf(fc_host_symbolic_name(lport->host), 256,
+ "QLogic %s v%s", QEDF_MODULE_NAME, QEDF_VERSION);
+
+ return 0;
+}
+
+/*
+ * NPIV functions
+ */
+
+static int qedf_vport_libfc_config(struct fc_vport *vport,
+ struct fc_lport *lport)
+{
+ lport->link_up = 0;
+ lport->qfull = 0;
+ lport->max_retry_count = QEDF_FLOGI_RETRY_CNT;
+ lport->max_rport_retry_count = QEDF_RPORT_RETRY_CNT;
+ lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
+ FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
+ lport->boot_time = jiffies;
+ lport->e_d_tov = 2 * 1000;
+ lport->r_a_tov = 10 * 1000;
+ lport->does_npiv = 1; /* Temporary until we add NPIV support */
+
+ /* Allocate stats for vport */
+ if (fc_lport_init_stats(lport))
+ return -ENOMEM;
+
+ /* Finish lport config */
+ fc_lport_config(lport);
+
+ /* offload related configuration */
+ lport->crc_offload = 0;
+ lport->seq_offload = 0;
+ lport->lro_enabled = 0;
+ lport->lro_xid = 0;
+ lport->lso_max = 0;
+
+ return 0;
+}
+
+static int qedf_vport_create(struct fc_vport *vport, bool disabled)
+{
+ struct Scsi_Host *shost = vport_to_shost(vport);
+ struct fc_lport *n_port = shost_priv(shost);
+ struct fc_lport *vn_port;
+ struct qedf_ctx *base_qedf = lport_priv(n_port);
+ struct qedf_ctx *vport_qedf;
+
+ char buf[32];
+ int rc = 0;
+
+ rc = fcoe_validate_vport_create(vport);
+ if (rc) {
+ fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
+ QEDF_WARN(&(base_qedf->dbg_ctx), "Failed to create vport, "
+ "WWPN (0x%s) already exists.\n", buf);
+ goto err1;
+ }
+
+ if (atomic_read(&base_qedf->link_state) != QEDF_LINK_UP) {
+ QEDF_WARN(&(base_qedf->dbg_ctx), "Cannot create vport "
+ "because link is not up.\n");
+ rc = -EIO;
+ goto err1;
+ }
+
+ vn_port = libfc_vport_create(vport, sizeof(struct qedf_ctx));
+ if (!vn_port) {
+ QEDF_WARN(&(base_qedf->dbg_ctx), "Could not create lport "
+ "for vport.\n");
+ rc = -ENOMEM;
+ goto err1;
+ }
+
+ fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
+ QEDF_ERR(&(base_qedf->dbg_ctx), "Creating NPIV port, WWPN=%s.\n",
+ buf);
+
+ /* Copy some fields from base_qedf */
+ vport_qedf = lport_priv(vn_port);
+ memcpy(vport_qedf, base_qedf, sizeof(struct qedf_ctx));
+
+ /* Set qedf data specific to this vport */
+ vport_qedf->lport = vn_port;
+ /* Use same hba_lock as base_qedf */
+ vport_qedf->hba_lock = base_qedf->hba_lock;
+ vport_qedf->pdev = base_qedf->pdev;
+ vport_qedf->cmd_mgr = base_qedf->cmd_mgr;
+ init_completion(&vport_qedf->flogi_compl);
+ INIT_LIST_HEAD(&vport_qedf->fcports);
+
+ rc = qedf_vport_libfc_config(vport, vn_port);
+ if (rc) {
+ QEDF_ERR(&(base_qedf->dbg_ctx), "Could not allocate memory "
+ "for lport stats.\n");
+ goto err2;
+ }
+
+ fc_set_wwnn(vn_port, vport->node_name);
+ fc_set_wwpn(vn_port, vport->port_name);
+ vport_qedf->wwnn = vn_port->wwnn;
+ vport_qedf->wwpn = vn_port->wwpn;
+
+ vn_port->host->transportt = qedf_fc_vport_transport_template;
+ vn_port->host->can_queue = QEDF_MAX_ELS_XID;
+ vn_port->host->max_lun = qedf_max_lun;
+ vn_port->host->sg_tablesize = QEDF_MAX_BDS_PER_CMD;
+ vn_port->host->max_cmd_len = QEDF_MAX_CDB_LEN;
+
+ rc = scsi_add_host(vn_port->host, &vport->dev);
+ if (rc) {
+ QEDF_WARN(&(base_qedf->dbg_ctx), "Error adding Scsi_Host.\n");
+ goto err2;
+ }
+
+ /* Set default dev_loss_tmo based on module parameter */
+ fc_host_dev_loss_tmo(vn_port->host) = qedf_dev_loss_tmo;
+
+ /* Init libfc stuffs */
+ memcpy(&vn_port->tt, &qedf_lport_template,
+ sizeof(qedf_lport_template));
+ fc_exch_init(vn_port);
+ fc_elsct_init(vn_port);
+ fc_lport_init(vn_port);
+ fc_disc_init(vn_port);
+ fc_disc_config(vn_port, vn_port);
+
+
+ /* Allocate the exchange manager */
+ shost = vport_to_shost(vport);
+ n_port = shost_priv(shost);
+ fc_exch_mgr_list_clone(n_port, vn_port);
+
+ /* Set max frame size */
+ fc_set_mfs(vn_port, QEDF_MFS);
+
+ fc_host_port_type(vn_port->host) = FC_PORTTYPE_UNKNOWN;
+
+ if (disabled) {
+ fc_vport_set_state(vport, FC_VPORT_DISABLED);
+ } else {
+ vn_port->boot_time = jiffies;
+ fc_fabric_login(vn_port);
+ fc_vport_setlink(vn_port);
+ }
+
+ QEDF_INFO(&(base_qedf->dbg_ctx), QEDF_LOG_NPIV, "vn_port=%p.\n",
+ vn_port);
+
+ /* Set up debug context for vport */
+ vport_qedf->dbg_ctx.host_no = vn_port->host->host_no;
+ vport_qedf->dbg_ctx.pdev = base_qedf->pdev;
+
+err2:
+ scsi_host_put(vn_port->host);
+err1:
+ return rc;
+}
+
+static int qedf_vport_destroy(struct fc_vport *vport)
+{
+ struct Scsi_Host *shost = vport_to_shost(vport);
+ struct fc_lport *n_port = shost_priv(shost);
+ struct fc_lport *vn_port = vport->dd_data;
+
+ mutex_lock(&n_port->lp_mutex);
+ list_del(&vn_port->list);
+ mutex_unlock(&n_port->lp_mutex);
+
+ fc_fabric_logoff(vn_port);
+ fc_lport_destroy(vn_port);
+
+ /* Detach from scsi-ml */
+ fc_remove_host(vn_port->host);
+ scsi_remove_host(vn_port->host);
+
+ /*
+ * Only try to release the exchange manager if the vn_port
+ * configuration is complete.
+ */
+ if (vn_port->state == LPORT_ST_READY)
+ fc_exch_mgr_free(vn_port);
+
+ /* Free memory used by statistical counters */
+ fc_lport_free_stats(vn_port);
+
+ /* Release Scsi_Host */
+ if (vn_port->host)
+ scsi_host_put(vn_port->host);
+
+ return 0;
+}
+
+static int qedf_vport_disable(struct fc_vport *vport, bool disable)
+{
+ struct fc_lport *lport = vport->dd_data;
+
+ if (disable) {
+ fc_vport_set_state(vport, FC_VPORT_DISABLED);
+ fc_fabric_logoff(lport);
+ } else {
+ lport->boot_time = jiffies;
+ fc_fabric_login(lport);
+ fc_vport_setlink(lport);
+ }
+ return 0;
+}
+
+/*
+ * During removal we need to wait for all the vports associated with a port
+ * to be destroyed so we avoid a race condition where libfc is still trying
+ * to reap vports while the driver remove function has already reaped the
+ * driver contexts associated with the physical port.
+ */
+static void qedf_wait_for_vport_destroy(struct qedf_ctx *qedf)
+{
+ struct fc_host_attrs *fc_host = shost_to_fc_host(qedf->lport->host);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_NPIV,
+ "Entered.\n");
+ while (fc_host->npiv_vports_inuse > 0) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_NPIV,
+ "Waiting for all vports to be reaped.\n");
+ msleep(1000);
+ }
+}
+
+/**
+ * qedf_fcoe_reset - Resets the fcoe
+ *
+ * @shost: shost the reset is from
+ *
+ * Returns: always 0
+ */
+static int qedf_fcoe_reset(struct Scsi_Host *shost)
+{
+ struct fc_lport *lport = shost_priv(shost);
+
+ fc_fabric_logoff(lport);
+ fc_fabric_login(lport);
+ return 0;
+}
+
+static struct fc_host_statistics *qedf_fc_get_host_stats(struct Scsi_Host
+ *shost)
+{
+ struct fc_host_statistics *qedf_stats;
+ struct fc_lport *lport = shost_priv(shost);
+ struct qedf_ctx *qedf = lport_priv(lport);
+ struct qed_fcoe_stats *fw_fcoe_stats;
+
+ qedf_stats = fc_get_host_stats(shost);
+
+ /* We don't collect offload stats for specific NPIV ports */
+ if (lport->vport)
+ goto out;
+
+ fw_fcoe_stats = kmalloc(sizeof(struct qed_fcoe_stats), GFP_KERNEL);
+ if (!fw_fcoe_stats) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate memory for "
+ "fw_fcoe_stats.\n");
+ goto out;
+ }
+
+ /* Query firmware for offload stats */
+ qed_ops->get_stats(qedf->cdev, fw_fcoe_stats);
+
+ /*
+ * The expectation is that we add our offload stats to the stats
+ * being maintained by libfc each time the fc_get_host_status callback
+ * is invoked. The additions are not carried over for each call to
+ * the fc_get_host_stats callback.
+ */
+ qedf_stats->tx_frames += fw_fcoe_stats->fcoe_tx_data_pkt_cnt +
+ fw_fcoe_stats->fcoe_tx_xfer_pkt_cnt +
+ fw_fcoe_stats->fcoe_tx_other_pkt_cnt;
+ qedf_stats->rx_frames += fw_fcoe_stats->fcoe_rx_data_pkt_cnt +
+ fw_fcoe_stats->fcoe_rx_xfer_pkt_cnt +
+ fw_fcoe_stats->fcoe_rx_other_pkt_cnt;
+ qedf_stats->fcp_input_megabytes += fw_fcoe_stats->fcoe_rx_byte_cnt /
+ 1000000;
+ qedf_stats->fcp_output_megabytes += fw_fcoe_stats->fcoe_tx_byte_cnt /
+ 1000000;
+ qedf_stats->rx_words += fw_fcoe_stats->fcoe_rx_byte_cnt / 4;
+ qedf_stats->tx_words += fw_fcoe_stats->fcoe_tx_byte_cnt / 4;
+ qedf_stats->invalid_crc_count +=
+ fw_fcoe_stats->fcoe_silent_drop_pkt_crc_error_cnt;
+ qedf_stats->dumped_frames =
+ fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt;
+ qedf_stats->error_frames +=
+ fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt;
+ qedf_stats->fcp_input_requests += qedf->input_requests;
+ qedf_stats->fcp_output_requests += qedf->output_requests;
+ qedf_stats->fcp_control_requests += qedf->control_requests;
+ qedf_stats->fcp_packet_aborts += qedf->packet_aborts;
+ qedf_stats->fcp_frame_alloc_failures += qedf->alloc_failures;
+
+ kfree(fw_fcoe_stats);
+out:
+ return qedf_stats;
+}
+
+static struct fc_function_template qedf_fc_transport_fn = {
+ .show_host_node_name = 1,
+ .show_host_port_name = 1,
+ .show_host_supported_classes = 1,
+ .show_host_supported_fc4s = 1,
+ .show_host_active_fc4s = 1,
+ .show_host_maxframe_size = 1,
+
+ .show_host_port_id = 1,
+ .show_host_supported_speeds = 1,
+ .get_host_speed = fc_get_host_speed,
+ .show_host_speed = 1,
+ .show_host_port_type = 1,
+ .get_host_port_state = fc_get_host_port_state,
+ .show_host_port_state = 1,
+ .show_host_symbolic_name = 1,
+
+ /*
+ * Tell FC transport to allocate enough space to store the backpointer
+ * for the associate qedf_rport struct.
+ */
+ .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
+ sizeof(struct qedf_rport)),
+ .show_rport_maxframe_size = 1,
+ .show_rport_supported_classes = 1,
+ .show_host_fabric_name = 1,
+ .show_starget_node_name = 1,
+ .show_starget_port_name = 1,
+ .show_starget_port_id = 1,
+ .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
+ .show_rport_dev_loss_tmo = 1,
+ .get_fc_host_stats = qedf_fc_get_host_stats,
+ .issue_fc_host_lip = qedf_fcoe_reset,
+ .vport_create = qedf_vport_create,
+ .vport_delete = qedf_vport_destroy,
+ .vport_disable = qedf_vport_disable,
+ .bsg_request = fc_lport_bsg_request,
+};
+
+static struct fc_function_template qedf_fc_vport_transport_fn = {
+ .show_host_node_name = 1,
+ .show_host_port_name = 1,
+ .show_host_supported_classes = 1,
+ .show_host_supported_fc4s = 1,
+ .show_host_active_fc4s = 1,
+ .show_host_maxframe_size = 1,
+ .show_host_port_id = 1,
+ .show_host_supported_speeds = 1,
+ .get_host_speed = fc_get_host_speed,
+ .show_host_speed = 1,
+ .show_host_port_type = 1,
+ .get_host_port_state = fc_get_host_port_state,
+ .show_host_port_state = 1,
+ .show_host_symbolic_name = 1,
+ .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
+ sizeof(struct qedf_rport)),
+ .show_rport_maxframe_size = 1,
+ .show_rport_supported_classes = 1,
+ .show_host_fabric_name = 1,
+ .show_starget_node_name = 1,
+ .show_starget_port_name = 1,
+ .show_starget_port_id = 1,
+ .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
+ .show_rport_dev_loss_tmo = 1,
+ .get_fc_host_stats = fc_get_host_stats,
+ .issue_fc_host_lip = qedf_fcoe_reset,
+ .bsg_request = fc_lport_bsg_request,
+};
+
+static bool qedf_fp_has_work(struct qedf_fastpath *fp)
+{
+ struct qedf_ctx *qedf = fp->qedf;
+ struct global_queue *que;
+ struct qed_sb_info *sb_info = fp->sb_info;
+ struct status_block *sb = sb_info->sb_virt;
+ u16 prod_idx;
+
+ /* Get the pointer to the global CQ this completion is on */
+ que = qedf->global_queues[fp->sb_id];
+
+ /* Be sure all responses have been written to PI */
+ rmb();
+
+ /* Get the current firmware producer index */
+ prod_idx = sb->pi_array[QEDF_FCOE_PARAMS_GL_RQ_PI];
+
+ return (que->cq_prod_idx != prod_idx);
+}
+
+/*
+ * Interrupt handler code.
+ */
+
+/* Process completion queue and copy CQE contents for deferred processesing
+ *
+ * Return true if we should wake the I/O thread, false if not.
+ */
+static bool qedf_process_completions(struct qedf_fastpath *fp)
+{
+ struct qedf_ctx *qedf = fp->qedf;
+ struct qed_sb_info *sb_info = fp->sb_info;
+ struct status_block *sb = sb_info->sb_virt;
+ struct global_queue *que;
+ u16 prod_idx;
+ struct fcoe_cqe *cqe;
+ struct qedf_io_work *io_work;
+ int num_handled = 0;
+ unsigned int cpu;
+ struct qedf_ioreq *io_req = NULL;
+ u16 xid;
+ u16 new_cqes;
+ u32 comp_type;
+
+ /* Get the current firmware producer index */
+ prod_idx = sb->pi_array[QEDF_FCOE_PARAMS_GL_RQ_PI];
+
+ /* Get the pointer to the global CQ this completion is on */
+ que = qedf->global_queues[fp->sb_id];
+
+ /* Calculate the amount of new elements since last processing */
+ new_cqes = (prod_idx >= que->cq_prod_idx) ?
+ (prod_idx - que->cq_prod_idx) :
+ 0x10000 - que->cq_prod_idx + prod_idx;
+
+ /* Save producer index */
+ que->cq_prod_idx = prod_idx;
+
+ while (new_cqes) {
+ fp->completions++;
+ num_handled++;
+ cqe = &que->cq[que->cq_cons_idx];
+
+ comp_type = (cqe->cqe_data >> FCOE_CQE_CQE_TYPE_SHIFT) &
+ FCOE_CQE_CQE_TYPE_MASK;
+
+ /*
+ * Process unsolicited CQEs directly in the interrupt handler
+ * sine we need the fastpath ID
+ */
+ if (comp_type == FCOE_UNSOLIC_CQE_TYPE) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_UNSOL,
+ "Unsolicated CQE.\n");
+ qedf_process_unsol_compl(qedf, fp->sb_id, cqe);
+ /*
+ * Don't add a work list item. Increment consumer
+ * consumer index and move on.
+ */
+ goto inc_idx;
+ }
+
+ xid = cqe->cqe_data & FCOE_CQE_TASK_ID_MASK;
+ io_req = &qedf->cmd_mgr->cmds[xid];
+
+ /*
+ * Figure out which percpu thread we should queue this I/O
+ * on.
+ */
+ if (!io_req)
+ /* If there is not io_req assocated with this CQE
+ * just queue it on CPU 0
+ */
+ cpu = 0;
+ else {
+ cpu = io_req->cpu;
+ io_req->int_cpu = smp_processor_id();
+ }
+
+ io_work = mempool_alloc(qedf->io_mempool, GFP_ATOMIC);
+ if (!io_work) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
+ "work for I/O completion.\n");
+ continue;
+ }
+ memset(io_work, 0, sizeof(struct qedf_io_work));
+
+ INIT_WORK(&io_work->work, qedf_fp_io_handler);
+
+ /* Copy contents of CQE for deferred processing */
+ memcpy(&io_work->cqe, cqe, sizeof(struct fcoe_cqe));
+
+ io_work->qedf = fp->qedf;
+ io_work->fp = NULL; /* Only used for unsolicited frames */
+
+ queue_work_on(cpu, qedf_io_wq, &io_work->work);
+
+inc_idx:
+ que->cq_cons_idx++;
+ if (que->cq_cons_idx == fp->cq_num_entries)
+ que->cq_cons_idx = 0;
+ new_cqes--;
+ }
+
+ return true;
+}
+
+
+/* MSI-X fastpath handler code */
+static irqreturn_t qedf_msix_handler(int irq, void *dev_id)
+{
+ struct qedf_fastpath *fp = dev_id;
+
+ if (!fp) {
+ QEDF_ERR(NULL, "fp is null.\n");
+ return IRQ_HANDLED;
+ }
+ if (!fp->sb_info) {
+ QEDF_ERR(NULL, "fp->sb_info in null.");
+ return IRQ_HANDLED;
+ }
+
+ /*
+ * Disable interrupts for this status block while we process new
+ * completions
+ */
+ qed_sb_ack(fp->sb_info, IGU_INT_DISABLE, 0 /*do not update*/);
+
+ while (1) {
+ qedf_process_completions(fp);
+
+ if (qedf_fp_has_work(fp) == 0) {
+ /* Update the sb information */
+ qed_sb_update_sb_idx(fp->sb_info);
+
+ /* Check for more work */
+ rmb();
+
+ if (qedf_fp_has_work(fp) == 0) {
+ /* Re-enable interrupts */
+ qed_sb_ack(fp->sb_info, IGU_INT_ENABLE, 1);
+ return IRQ_HANDLED;
+ }
+ }
+ }
+
+ /* Do we ever want to break out of above loop? */
+ return IRQ_HANDLED;
+}
+
+/* simd handler for MSI/INTa */
+static void qedf_simd_int_handler(void *cookie)
+{
+ /* Cookie is qedf_ctx struct */
+ struct qedf_ctx *qedf = (struct qedf_ctx *)cookie;
+
+ QEDF_WARN(&(qedf->dbg_ctx), "qedf=%p.\n", qedf);
+}
+
+#define QEDF_SIMD_HANDLER_NUM 0
+static void qedf_sync_free_irqs(struct qedf_ctx *qedf)
+{
+ int i;
+
+ if (qedf->int_info.msix_cnt) {
+ for (i = 0; i < qedf->int_info.used_cnt; i++) {
+ synchronize_irq(qedf->int_info.msix[i].vector);
+ irq_set_affinity_hint(qedf->int_info.msix[i].vector,
+ NULL);
+ irq_set_affinity_notifier(qedf->int_info.msix[i].vector,
+ NULL);
+ free_irq(qedf->int_info.msix[i].vector,
+ &qedf->fp_array[i]);
+ }
+ } else
+ qed_ops->common->simd_handler_clean(qedf->cdev,
+ QEDF_SIMD_HANDLER_NUM);
+
+ qedf->int_info.used_cnt = 0;
+ qed_ops->common->set_fp_int(qedf->cdev, 0);
+}
+
+static int qedf_request_msix_irq(struct qedf_ctx *qedf)
+{
+ int i, rc, cpu;
+
+ cpu = cpumask_first(cpu_online_mask);
+ for (i = 0; i < qedf->num_queues; i++) {
+ rc = request_irq(qedf->int_info.msix[i].vector,
+ qedf_msix_handler, 0, "qedf", &qedf->fp_array[i]);
+
+ if (rc) {
+ QEDF_WARN(&(qedf->dbg_ctx), "request_irq failed.\n");
+ qedf_sync_free_irqs(qedf);
+ return rc;
+ }
+
+ qedf->int_info.used_cnt++;
+ rc = irq_set_affinity_hint(qedf->int_info.msix[i].vector,
+ get_cpu_mask(cpu));
+ cpu = cpumask_next(cpu, cpu_online_mask);
+ }
+
+ return 0;
+}
+
+static int qedf_setup_int(struct qedf_ctx *qedf)
+{
+ int rc = 0;
+
+ /*
+ * Learn interrupt configuration
+ */
+ rc = qed_ops->common->set_fp_int(qedf->cdev, num_online_cpus());
+
+ rc = qed_ops->common->get_fp_int(qedf->cdev, &qedf->int_info);
+ if (rc)
+ return 0;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Number of msix_cnt = "
+ "0x%x num of cpus = 0x%x\n", qedf->int_info.msix_cnt,
+ num_online_cpus());
+
+ if (qedf->int_info.msix_cnt)
+ return qedf_request_msix_irq(qedf);
+
+ qed_ops->common->simd_handler_config(qedf->cdev, &qedf,
+ QEDF_SIMD_HANDLER_NUM, qedf_simd_int_handler);
+ qedf->int_info.used_cnt = 1;
+
+ return 0;
+}
+
+/* Main function for libfc frame reception */
+static void qedf_recv_frame(struct qedf_ctx *qedf,
+ struct sk_buff *skb)
+{
+ u32 fr_len;
+ struct fc_lport *lport;
+ struct fc_frame_header *fh;
+ struct fcoe_crc_eof crc_eof;
+ struct fc_frame *fp;
+ u8 *mac = NULL;
+ u8 *dest_mac = NULL;
+ struct fcoe_hdr *hp;
+ struct qedf_rport *fcport;
+
+ lport = qedf->lport;
+ if (lport == NULL || lport->state == LPORT_ST_DISABLED) {
+ QEDF_WARN(NULL, "Invalid lport struct or lport disabled.\n");
+ kfree_skb(skb);
+ return;
+ }
+
+ if (skb_is_nonlinear(skb))
+ skb_linearize(skb);
+ mac = eth_hdr(skb)->h_source;
+ dest_mac = eth_hdr(skb)->h_dest;
+
+ /* Pull the header */
+ hp = (struct fcoe_hdr *)skb->data;
+ fh = (struct fc_frame_header *) skb_transport_header(skb);
+ skb_pull(skb, sizeof(struct fcoe_hdr));
+ fr_len = skb->len - sizeof(struct fcoe_crc_eof);
+
+ fp = (struct fc_frame *)skb;
+ fc_frame_init(fp);
+ fr_dev(fp) = lport;
+ fr_sof(fp) = hp->fcoe_sof;
+ if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
+ kfree_skb(skb);
+ return;
+ }
+ fr_eof(fp) = crc_eof.fcoe_eof;
+ fr_crc(fp) = crc_eof.fcoe_crc32;
+ if (pskb_trim(skb, fr_len)) {
+ kfree_skb(skb);
+ return;
+ }
+
+ fh = fc_frame_header_get(fp);
+
+ if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
+ fh->fh_type == FC_TYPE_FCP) {
+ /* Drop FCP data. We dont this in L2 path */
+ kfree_skb(skb);
+ return;
+ }
+ if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
+ fh->fh_type == FC_TYPE_ELS) {
+ switch (fc_frame_payload_op(fp)) {
+ case ELS_LOGO:
+ if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
+ /* drop non-FIP LOGO */
+ kfree_skb(skb);
+ return;
+ }
+ break;
+ }
+ }
+
+ if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
+ /* Drop incoming ABTS */
+ kfree_skb(skb);
+ return;
+ }
+
+ /*
+ * If a connection is uploading, drop incoming FCoE frames as there
+ * is a small window where we could try to return a frame while libfc
+ * is trying to clean things up.
+ */
+
+ /* Get fcport associated with d_id if it exists */
+ fcport = qedf_fcport_lookup(qedf, ntoh24(fh->fh_d_id));
+
+ if (fcport && test_bit(QEDF_RPORT_UPLOADING_CONNECTION,
+ &fcport->flags)) {
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2,
+ "Connection uploading, dropping fp=%p.\n", fp);
+ kfree_skb(skb);
+ return;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "FCoE frame receive: "
+ "skb=%p fp=%p src=%06x dest=%06x r_ctl=%x fh_type=%x.\n", skb, fp,
+ ntoh24(fh->fh_s_id), ntoh24(fh->fh_d_id), fh->fh_r_ctl,
+ fh->fh_type);
+ if (qedf_dump_frames)
+ print_hex_dump(KERN_WARNING, "fcoe: ", DUMP_PREFIX_OFFSET, 16,
+ 1, skb->data, skb->len, false);
+ fc_exch_recv(lport, fp);
+}
+
+static void qedf_ll2_process_skb(struct work_struct *work)
+{
+ struct qedf_skb_work *skb_work =
+ container_of(work, struct qedf_skb_work, work);
+ struct qedf_ctx *qedf = skb_work->qedf;
+ struct sk_buff *skb = skb_work->skb;
+ struct ethhdr *eh;
+
+ if (!qedf) {
+ QEDF_ERR(NULL, "qedf is NULL\n");
+ goto err_out;
+ }
+
+ eh = (struct ethhdr *)skb->data;
+
+ /* Undo VLAN encapsulation */
+ if (eh->h_proto == htons(ETH_P_8021Q)) {
+ memmove((u8 *)eh + VLAN_HLEN, eh, ETH_ALEN * 2);
+ eh = (struct ethhdr *)skb_pull(skb, VLAN_HLEN);
+ skb_reset_mac_header(skb);
+ }
+
+ /*
+ * Process either a FIP frame or FCoE frame based on the
+ * protocol value. If it's not either just drop the
+ * frame.
+ */
+ if (eh->h_proto == htons(ETH_P_FIP)) {
+ qedf_fip_recv(qedf, skb);
+ goto out;
+ } else if (eh->h_proto == htons(ETH_P_FCOE)) {
+ __skb_pull(skb, ETH_HLEN);
+ qedf_recv_frame(qedf, skb);
+ goto out;
+ } else
+ goto err_out;
+
+err_out:
+ kfree_skb(skb);
+out:
+ kfree(skb_work);
+ return;
+}
+
+static int qedf_ll2_rx(void *cookie, struct sk_buff *skb,
+ u32 arg1, u32 arg2)
+{
+ struct qedf_ctx *qedf = (struct qedf_ctx *)cookie;
+ struct qedf_skb_work *skb_work;
+
+ skb_work = kzalloc(sizeof(struct qedf_skb_work), GFP_ATOMIC);
+ if (!skb_work) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate skb_work so "
+ "dropping frame.\n");
+ kfree_skb(skb);
+ return 0;
+ }
+
+ INIT_WORK(&skb_work->work, qedf_ll2_process_skb);
+ skb_work->skb = skb;
+ skb_work->qedf = qedf;
+ queue_work(qedf->ll2_recv_wq, &skb_work->work);
+
+ return 0;
+}
+
+static struct qed_ll2_cb_ops qedf_ll2_cb_ops = {
+ .rx_cb = qedf_ll2_rx,
+ .tx_cb = NULL,
+};
+
+/* Main thread to process I/O completions */
+void qedf_fp_io_handler(struct work_struct *work)
+{
+ struct qedf_io_work *io_work =
+ container_of(work, struct qedf_io_work, work);
+ u32 comp_type;
+
+ /*
+ * Deferred part of unsolicited CQE sends
+ * frame to libfc.
+ */
+ comp_type = (io_work->cqe.cqe_data >>
+ FCOE_CQE_CQE_TYPE_SHIFT) &
+ FCOE_CQE_CQE_TYPE_MASK;
+ if (comp_type == FCOE_UNSOLIC_CQE_TYPE &&
+ io_work->fp)
+ fc_exch_recv(io_work->qedf->lport, io_work->fp);
+ else
+ qedf_process_cqe(io_work->qedf, &io_work->cqe);
+
+ kfree(io_work);
+}
+
+static int qedf_alloc_and_init_sb(struct qedf_ctx *qedf,
+ struct qed_sb_info *sb_info, u16 sb_id)
+{
+ struct status_block *sb_virt;
+ dma_addr_t sb_phys;
+ int ret;
+
+ sb_virt = dma_alloc_coherent(&qedf->pdev->dev,
+ sizeof(struct status_block), &sb_phys, GFP_KERNEL);
+
+ if (!sb_virt) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Status block allocation failed "
+ "for id = %d.\n", sb_id);
+ return -ENOMEM;
+ }
+
+ ret = qed_ops->common->sb_init(qedf->cdev, sb_info, sb_virt, sb_phys,
+ sb_id, QED_SB_TYPE_STORAGE);
+
+ if (ret) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Status block initialization "
+ "failed for id = %d.\n", sb_id);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void qedf_free_sb(struct qedf_ctx *qedf, struct qed_sb_info *sb_info)
+{
+ if (sb_info->sb_virt)
+ dma_free_coherent(&qedf->pdev->dev, sizeof(*sb_info->sb_virt),
+ (void *)sb_info->sb_virt, sb_info->sb_phys);
+}
+
+static void qedf_destroy_sb(struct qedf_ctx *qedf)
+{
+ int id;
+ struct qedf_fastpath *fp = NULL;
+
+ for (id = 0; id < qedf->num_queues; id++) {
+ fp = &(qedf->fp_array[id]);
+ if (fp->sb_id == QEDF_SB_ID_NULL)
+ break;
+ qedf_free_sb(qedf, fp->sb_info);
+ kfree(fp->sb_info);
+ }
+ kfree(qedf->fp_array);
+}
+
+static int qedf_prepare_sb(struct qedf_ctx *qedf)
+{
+ int id;
+ struct qedf_fastpath *fp;
+ int ret;
+
+ qedf->fp_array =
+ kcalloc(qedf->num_queues, sizeof(struct qedf_fastpath),
+ GFP_KERNEL);
+
+ if (!qedf->fp_array) {
+ QEDF_ERR(&(qedf->dbg_ctx), "fastpath array allocation "
+ "failed.\n");
+ return -ENOMEM;
+ }
+
+ for (id = 0; id < qedf->num_queues; id++) {
+ fp = &(qedf->fp_array[id]);
+ fp->sb_id = QEDF_SB_ID_NULL;
+ fp->sb_info = kcalloc(1, sizeof(*fp->sb_info), GFP_KERNEL);
+ if (!fp->sb_info) {
+ QEDF_ERR(&(qedf->dbg_ctx), "SB info struct "
+ "allocation failed.\n");
+ goto err;
+ }
+ ret = qedf_alloc_and_init_sb(qedf, fp->sb_info, id);
+ if (ret) {
+ QEDF_ERR(&(qedf->dbg_ctx), "SB allocation and "
+ "initialization failed.\n");
+ goto err;
+ }
+ fp->sb_id = id;
+ fp->qedf = qedf;
+ fp->cq_num_entries =
+ qedf->global_queues[id]->cq_mem_size /
+ sizeof(struct fcoe_cqe);
+ }
+err:
+ return 0;
+}
+
+void qedf_process_cqe(struct qedf_ctx *qedf, struct fcoe_cqe *cqe)
+{
+ u16 xid;
+ struct qedf_ioreq *io_req;
+ struct qedf_rport *fcport;
+ u32 comp_type;
+
+ comp_type = (cqe->cqe_data >> FCOE_CQE_CQE_TYPE_SHIFT) &
+ FCOE_CQE_CQE_TYPE_MASK;
+
+ xid = cqe->cqe_data & FCOE_CQE_TASK_ID_MASK;
+ io_req = &qedf->cmd_mgr->cmds[xid];
+
+ /* Completion not for a valid I/O anymore so just return */
+ if (!io_req)
+ return;
+
+ fcport = io_req->fcport;
+
+ if (fcport == NULL) {
+ QEDF_ERR(&(qedf->dbg_ctx), "fcport is NULL.\n");
+ return;
+ }
+
+ /*
+ * Check that fcport is offloaded. If it isn't then the spinlock
+ * isn't valid and shouldn't be taken. We should just return.
+ */
+ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Session not offloaded yet.\n");
+ return;
+ }
+
+
+ switch (comp_type) {
+ case FCOE_GOOD_COMPLETION_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ switch (io_req->cmd_type) {
+ case QEDF_SCSI_CMD:
+ qedf_scsi_completion(qedf, cqe, io_req);
+ break;
+ case QEDF_ELS:
+ qedf_process_els_compl(qedf, cqe, io_req);
+ break;
+ case QEDF_TASK_MGMT_CMD:
+ qedf_process_tmf_compl(qedf, cqe, io_req);
+ break;
+ case QEDF_SEQ_CLEANUP:
+ qedf_process_seq_cleanup_compl(qedf, cqe, io_req);
+ break;
+ }
+ break;
+ case FCOE_ERROR_DETECTION_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Error detect CQE.\n");
+ qedf_process_error_detect(qedf, cqe, io_req);
+ break;
+ case FCOE_EXCH_CLEANUP_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Cleanup CQE.\n");
+ qedf_process_cleanup_compl(qedf, cqe, io_req);
+ break;
+ case FCOE_ABTS_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Abort CQE.\n");
+ qedf_process_abts_compl(qedf, cqe, io_req);
+ break;
+ case FCOE_DUMMY_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Dummy CQE.\n");
+ break;
+ case FCOE_LOCAL_COMP_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Local completion CQE.\n");
+ break;
+ case FCOE_WARNING_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Warning CQE.\n");
+ qedf_process_warning_compl(qedf, cqe, io_req);
+ break;
+ case MAX_FCOE_CQE_TYPE:
+ atomic_inc(&fcport->free_sqes);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Max FCoE CQE.\n");
+ break;
+ default:
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO,
+ "Default CQE.\n");
+ break;
+ }
+}
+
+static void qedf_free_bdq(struct qedf_ctx *qedf)
+{
+ int i;
+
+ if (qedf->bdq_pbl_list)
+ dma_free_coherent(&qedf->pdev->dev, QEDF_PAGE_SIZE,
+ qedf->bdq_pbl_list, qedf->bdq_pbl_list_dma);
+
+ if (qedf->bdq_pbl)
+ dma_free_coherent(&qedf->pdev->dev, qedf->bdq_pbl_mem_size,
+ qedf->bdq_pbl, qedf->bdq_pbl_dma);
+
+ for (i = 0; i < QEDF_BDQ_SIZE; i++) {
+ if (qedf->bdq[i].buf_addr) {
+ dma_free_coherent(&qedf->pdev->dev, QEDF_BDQ_BUF_SIZE,
+ qedf->bdq[i].buf_addr, qedf->bdq[i].buf_dma);
+ }
+ }
+}
+
+static void qedf_free_global_queues(struct qedf_ctx *qedf)
+{
+ int i;
+ struct global_queue **gl = qedf->global_queues;
+
+ for (i = 0; i < qedf->num_queues; i++) {
+ if (!gl[i])
+ continue;
+
+ if (gl[i]->cq)
+ dma_free_coherent(&qedf->pdev->dev,
+ gl[i]->cq_mem_size, gl[i]->cq, gl[i]->cq_dma);
+ if (gl[i]->cq_pbl)
+ dma_free_coherent(&qedf->pdev->dev, gl[i]->cq_pbl_size,
+ gl[i]->cq_pbl, gl[i]->cq_pbl_dma);
+
+ kfree(gl[i]);
+ }
+
+ qedf_free_bdq(qedf);
+}
+
+static int qedf_alloc_bdq(struct qedf_ctx *qedf)
+{
+ int i;
+ struct scsi_bd *pbl;
+ u64 *list;
+ dma_addr_t page;
+
+ /* Alloc dma memory for BDQ buffers */
+ for (i = 0; i < QEDF_BDQ_SIZE; i++) {
+ qedf->bdq[i].buf_addr = dma_alloc_coherent(&qedf->pdev->dev,
+ QEDF_BDQ_BUF_SIZE, &qedf->bdq[i].buf_dma, GFP_KERNEL);
+ if (!qedf->bdq[i].buf_addr) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate BDQ "
+ "buffer %d.\n", i);
+ return -ENOMEM;
+ }
+ }
+
+ /* Alloc dma memory for BDQ page buffer list */
+ qedf->bdq_pbl_mem_size =
+ QEDF_BDQ_SIZE * sizeof(struct scsi_bd);
+ qedf->bdq_pbl_mem_size =
+ ALIGN(qedf->bdq_pbl_mem_size, QEDF_PAGE_SIZE);
+
+ qedf->bdq_pbl = dma_alloc_coherent(&qedf->pdev->dev,
+ qedf->bdq_pbl_mem_size, &qedf->bdq_pbl_dma, GFP_KERNEL);
+ if (!qedf->bdq_pbl) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate BDQ PBL.\n");
+ return -ENOMEM;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "BDQ PBL addr=0x%p dma=0x%llx.\n", qedf->bdq_pbl,
+ qedf->bdq_pbl_dma);
+
+ /*
+ * Populate BDQ PBL with physical and virtual address of individual
+ * BDQ buffers
+ */
+ pbl = (struct scsi_bd *)qedf->bdq_pbl;
+ for (i = 0; i < QEDF_BDQ_SIZE; i++) {
+ pbl->address.hi = cpu_to_le32(U64_HI(qedf->bdq[i].buf_dma));
+ pbl->address.lo = cpu_to_le32(U64_LO(qedf->bdq[i].buf_dma));
+ pbl->opaque.hi = 0;
+ /* Opaque lo data is an index into the BDQ array */
+ pbl->opaque.lo = cpu_to_le32(i);
+ pbl++;
+ }
+
+ /* Allocate list of PBL pages */
+ qedf->bdq_pbl_list = dma_alloc_coherent(&qedf->pdev->dev,
+ QEDF_PAGE_SIZE, &qedf->bdq_pbl_list_dma, GFP_KERNEL);
+ if (!qedf->bdq_pbl_list) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate list of PBL "
+ "pages.\n");
+ return -ENOMEM;
+ }
+ memset(qedf->bdq_pbl_list, 0, QEDF_PAGE_SIZE);
+
+ /*
+ * Now populate PBL list with pages that contain pointers to the
+ * individual buffers.
+ */
+ qedf->bdq_pbl_list_num_entries = qedf->bdq_pbl_mem_size /
+ QEDF_PAGE_SIZE;
+ list = (u64 *)qedf->bdq_pbl_list;
+ page = qedf->bdq_pbl_list_dma;
+ for (i = 0; i < qedf->bdq_pbl_list_num_entries; i++) {
+ *list = qedf->bdq_pbl_dma;
+ list++;
+ page += QEDF_PAGE_SIZE;
+ }
+
+ return 0;
+}
+
+static int qedf_alloc_global_queues(struct qedf_ctx *qedf)
+{
+ u32 *list;
+ int i;
+ int status = 0, rc;
+ u32 *pbl;
+ dma_addr_t page;
+ int num_pages;
+
+ /* Allocate and map CQs, RQs */
+ /*
+ * Number of global queues (CQ / RQ). This should
+ * be <= number of available MSIX vectors for the PF
+ */
+ if (!qedf->num_queues) {
+ QEDF_ERR(&(qedf->dbg_ctx), "No MSI-X vectors available!\n");
+ return 1;
+ }
+
+ /*
+ * Make sure we allocated the PBL that will contain the physical
+ * addresses of our queues
+ */
+ if (!qedf->p_cpuq) {
+ status = 1;
+ goto mem_alloc_failure;
+ }
+
+ qedf->global_queues = kzalloc((sizeof(struct global_queue *)
+ * qedf->num_queues), GFP_KERNEL);
+ if (!qedf->global_queues) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Unable to allocate global "
+ "queues array ptr memory\n");
+ return -ENOMEM;
+ }
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "qedf->global_queues=%p.\n", qedf->global_queues);
+
+ /* Allocate DMA coherent buffers for BDQ */
+ rc = qedf_alloc_bdq(qedf);
+ if (rc)
+ goto mem_alloc_failure;
+
+ /* Allocate a CQ and an associated PBL for each MSI-X vector */
+ for (i = 0; i < qedf->num_queues; i++) {
+ qedf->global_queues[i] = kzalloc(sizeof(struct global_queue),
+ GFP_KERNEL);
+ if (!qedf->global_queues[i]) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Unable to allocation "
+ "global queue %d.\n", i);
+ goto mem_alloc_failure;
+ }
+
+ qedf->global_queues[i]->cq_mem_size =
+ FCOE_PARAMS_CQ_NUM_ENTRIES * sizeof(struct fcoe_cqe);
+ qedf->global_queues[i]->cq_mem_size =
+ ALIGN(qedf->global_queues[i]->cq_mem_size, QEDF_PAGE_SIZE);
+
+ qedf->global_queues[i]->cq_pbl_size =
+ (qedf->global_queues[i]->cq_mem_size /
+ PAGE_SIZE) * sizeof(void *);
+ qedf->global_queues[i]->cq_pbl_size =
+ ALIGN(qedf->global_queues[i]->cq_pbl_size, QEDF_PAGE_SIZE);
+
+ qedf->global_queues[i]->cq =
+ dma_alloc_coherent(&qedf->pdev->dev,
+ qedf->global_queues[i]->cq_mem_size,
+ &qedf->global_queues[i]->cq_dma, GFP_KERNEL);
+
+ if (!qedf->global_queues[i]->cq) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
+ "cq.\n");
+ status = -ENOMEM;
+ goto mem_alloc_failure;
+ }
+ memset(qedf->global_queues[i]->cq, 0,
+ qedf->global_queues[i]->cq_mem_size);
+
+ qedf->global_queues[i]->cq_pbl =
+ dma_alloc_coherent(&qedf->pdev->dev,
+ qedf->global_queues[i]->cq_pbl_size,
+ &qedf->global_queues[i]->cq_pbl_dma, GFP_KERNEL);
+
+ if (!qedf->global_queues[i]->cq_pbl) {
+ QEDF_WARN(&(qedf->dbg_ctx), "Could not allocate "
+ "cq PBL.\n");
+ status = -ENOMEM;
+ goto mem_alloc_failure;
+ }
+ memset(qedf->global_queues[i]->cq_pbl, 0,
+ qedf->global_queues[i]->cq_pbl_size);
+
+ /* Create PBL */
+ num_pages = qedf->global_queues[i]->cq_mem_size /
+ QEDF_PAGE_SIZE;
+ page = qedf->global_queues[i]->cq_dma;
+ pbl = (u32 *)qedf->global_queues[i]->cq_pbl;
+
+ while (num_pages--) {
+ *pbl = U64_LO(page);
+ pbl++;
+ *pbl = U64_HI(page);
+ pbl++;
+ page += QEDF_PAGE_SIZE;
+ }
+ /* Set the initial consumer index for cq */
+ qedf->global_queues[i]->cq_cons_idx = 0;
+ }
+
+ list = (u32 *)qedf->p_cpuq;
+
+ /*
+ * The list is built as follows: CQ#0 PBL pointer, RQ#0 PBL pointer,
+ * CQ#1 PBL pointer, RQ#1 PBL pointer, etc. Each PBL pointer points
+ * to the physical address which contains an array of pointers to
+ * the physical addresses of the specific queue pages.
+ */
+ for (i = 0; i < qedf->num_queues; i++) {
+ *list = U64_LO(qedf->global_queues[i]->cq_pbl_dma);
+ list++;
+ *list = U64_HI(qedf->global_queues[i]->cq_pbl_dma);
+ list++;
+ *list = U64_LO(0);
+ list++;
+ *list = U64_HI(0);
+ list++;
+ }
+
+ return 0;
+
+mem_alloc_failure:
+ qedf_free_global_queues(qedf);
+ return status;
+}
+
+static int qedf_set_fcoe_pf_param(struct qedf_ctx *qedf)
+{
+ u8 sq_num_pbl_pages;
+ u32 sq_mem_size;
+ u32 cq_mem_size;
+ u32 cq_num_entries;
+ int rval;
+
+ /*
+ * The number of completion queues/fastpath interrupts/status blocks
+ * we allocation is the minimum off:
+ *
+ * Number of CPUs
+ * Number of MSI-X vectors
+ * Max number allocated in hardware (QEDF_MAX_NUM_CQS)
+ */
+ qedf->num_queues = min((unsigned int)QEDF_MAX_NUM_CQS,
+ num_online_cpus());
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Number of CQs is %d.\n",
+ qedf->num_queues);
+
+ qedf->p_cpuq = pci_alloc_consistent(qedf->pdev,
+ qedf->num_queues * sizeof(struct qedf_glbl_q_params),
+ &qedf->hw_p_cpuq);
+
+ if (!qedf->p_cpuq) {
+ QEDF_ERR(&(qedf->dbg_ctx), "pci_alloc_consistent failed.\n");
+ return 1;
+ }
+
+ rval = qedf_alloc_global_queues(qedf);
+ if (rval) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Global queue allocation "
+ "failed.\n");
+ return 1;
+ }
+
+ /* Calculate SQ PBL size in the same manner as in qedf_sq_alloc() */
+ sq_mem_size = SQ_NUM_ENTRIES * sizeof(struct fcoe_wqe);
+ sq_mem_size = ALIGN(sq_mem_size, QEDF_PAGE_SIZE);
+ sq_num_pbl_pages = (sq_mem_size / QEDF_PAGE_SIZE);
+
+ /* Calculate CQ num entries */
+ cq_mem_size = FCOE_PARAMS_CQ_NUM_ENTRIES * sizeof(struct fcoe_cqe);
+ cq_mem_size = ALIGN(cq_mem_size, QEDF_PAGE_SIZE);
+ cq_num_entries = cq_mem_size / sizeof(struct fcoe_cqe);
+
+ memset(&(qedf->pf_params), 0,
+ sizeof(qedf->pf_params));
+
+ /* Setup the value for fcoe PF */
+ qedf->pf_params.fcoe_pf_params.num_cons = QEDF_MAX_SESSIONS;
+ qedf->pf_params.fcoe_pf_params.num_tasks = FCOE_PARAMS_NUM_TASKS;
+ qedf->pf_params.fcoe_pf_params.glbl_q_params_addr =
+ (u64)qedf->hw_p_cpuq;
+ qedf->pf_params.fcoe_pf_params.sq_num_pbl_pages = sq_num_pbl_pages;
+
+ qedf->pf_params.fcoe_pf_params.rq_buffer_log_size = 0;
+
+ qedf->pf_params.fcoe_pf_params.cq_num_entries = cq_num_entries;
+ qedf->pf_params.fcoe_pf_params.num_cqs = qedf->num_queues;
+
+ /* log_page_size: 12 for 4KB pages */
+ qedf->pf_params.fcoe_pf_params.log_page_size = ilog2(QEDF_PAGE_SIZE);
+
+ qedf->pf_params.fcoe_pf_params.mtu = 9000;
+ qedf->pf_params.fcoe_pf_params.gl_rq_pi = QEDF_FCOE_PARAMS_GL_RQ_PI;
+ qedf->pf_params.fcoe_pf_params.gl_cmd_pi = QEDF_FCOE_PARAMS_GL_CMD_PI;
+
+ /* BDQ address and size */
+ qedf->pf_params.fcoe_pf_params.bdq_pbl_base_addr[0] =
+ qedf->bdq_pbl_list_dma;
+ qedf->pf_params.fcoe_pf_params.bdq_pbl_num_entries[0] =
+ qedf->bdq_pbl_list_num_entries;
+ qedf->pf_params.fcoe_pf_params.rq_buffer_size = QEDF_BDQ_BUF_SIZE;
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "bdq_list=%p bdq_pbl_list_dma=%llx bdq_pbl_list_entries=%d.\n",
+ qedf->bdq_pbl_list,
+ qedf->pf_params.fcoe_pf_params.bdq_pbl_base_addr[0],
+ qedf->pf_params.fcoe_pf_params.bdq_pbl_num_entries[0]);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "cq_num_entries=%d.\n",
+ qedf->pf_params.fcoe_pf_params.cq_num_entries);
+
+ return 0;
+}
+
+/* Free DMA coherent memory for array of queue pointers we pass to qed */
+static void qedf_free_fcoe_pf_param(struct qedf_ctx *qedf)
+{
+ size_t size = 0;
+
+ if (qedf->p_cpuq) {
+ size = qedf->num_queues * sizeof(struct qedf_glbl_q_params);
+ pci_free_consistent(qedf->pdev, size, qedf->p_cpuq,
+ qedf->hw_p_cpuq);
+ }
+
+ qedf_free_global_queues(qedf);
+
+ if (qedf->global_queues)
+ kfree(qedf->global_queues);
+}
+
+/*
+ * PCI driver functions
+ */
+
+static const struct pci_device_id qedf_pci_tbl[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x165c) },
+ { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x8080) },
+ {0}
+};
+MODULE_DEVICE_TABLE(pci, qedf_pci_tbl);
+
+static struct pci_driver qedf_pci_driver = {
+ .name = QEDF_MODULE_NAME,
+ .id_table = qedf_pci_tbl,
+ .probe = qedf_probe,
+ .remove = qedf_remove,
+};
+
+static int __qedf_probe(struct pci_dev *pdev, int mode)
+{
+ int rc;
+ struct fc_lport *lport;
+ struct qedf_ctx *qedf;
+ struct Scsi_Host *host;
+ bool is_vf = false;
+ struct qed_ll2_params params;
+ char host_buf[20];
+ struct qed_link_params link_params;
+ int status;
+ void *task_start, *task_end;
+ struct qed_slowpath_params slowpath_params;
+ struct qed_probe_params qed_params;
+ u16 tmp;
+
+ /*
+ * When doing error recovery we didn't reap the lport so don't try
+ * to reallocate it.
+ */
+ if (mode != QEDF_MODE_RECOVERY) {
+ lport = libfc_host_alloc(&qedf_host_template,
+ sizeof(struct qedf_ctx));
+
+ if (!lport) {
+ QEDF_ERR(NULL, "Could not allocate lport.\n");
+ rc = -ENOMEM;
+ goto err0;
+ }
+
+ /* Initialize qedf_ctx */
+ qedf = lport_priv(lport);
+ qedf->lport = lport;
+ qedf->ctlr.lp = lport;
+ qedf->pdev = pdev;
+ qedf->dbg_ctx.pdev = pdev;
+ qedf->dbg_ctx.host_no = lport->host->host_no;
+ spin_lock_init(&qedf->hba_lock);
+ INIT_LIST_HEAD(&qedf->fcports);
+ qedf->curr_conn_id = QEDF_MAX_SESSIONS - 1;
+ atomic_set(&qedf->num_offloads, 0);
+ qedf->stop_io_on_error = false;
+ pci_set_drvdata(pdev, qedf);
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO,
+ "QLogic FastLinQ FCoE Module qedf %s, "
+ "FW %d.%d.%d.%d\n", QEDF_VERSION,
+ FW_MAJOR_VERSION, FW_MINOR_VERSION, FW_REVISION_VERSION,
+ FW_ENGINEERING_VERSION);
+ } else {
+ /* Init pointers during recovery */
+ qedf = pci_get_drvdata(pdev);
+ lport = qedf->lport;
+ }
+
+ host = lport->host;
+
+ /* Allocate mempool for qedf_io_work structs */
+ qedf->io_mempool = mempool_create_slab_pool(QEDF_IO_WORK_MIN,
+ qedf_io_work_cache);
+ if (qedf->io_mempool == NULL) {
+ QEDF_ERR(&(qedf->dbg_ctx), "qedf->io_mempool is NULL.\n");
+ goto err1;
+ }
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_INFO, "qedf->io_mempool=%p.\n",
+ qedf->io_mempool);
+
+ sprintf(host_buf, "qedf_%u_link",
+ qedf->lport->host->host_no);
+ qedf->link_update_wq = create_singlethread_workqueue(host_buf);
+ INIT_DELAYED_WORK(&qedf->link_update, qedf_handle_link_update);
+ INIT_DELAYED_WORK(&qedf->link_recovery, qedf_link_recovery);
+
+ qedf->fipvlan_retries = qedf_fipvlan_retries;
+
+ /*
+ * Common probe. Takes care of basic hardware init and pci_*
+ * functions.
+ */
+ memset(&qed_params, 0, sizeof(qed_params));
+ qed_params.protocol = QED_PROTOCOL_FCOE;
+ qed_params.dp_module = qedf_dp_module;
+ qed_params.dp_level = qedf_dp_level;
+ qed_params.is_vf = is_vf;
+ qedf->cdev = qed_ops->common->probe(pdev, &qed_params);
+ if (!qedf->cdev) {
+ rc = -ENODEV;
+ goto err1;
+ }
+
+ /* queue allocation code should come here
+ * order should be
+ * slowpath_start
+ * status block allocation
+ * interrupt registration (to get min number of queues)
+ * set_fcoe_pf_param
+ * qed_sp_fcoe_func_start
+ */
+ rc = qedf_set_fcoe_pf_param(qedf);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Cannot set fcoe pf param.\n");
+ goto err2;
+ }
+ qed_ops->common->update_pf_params(qedf->cdev, &qedf->pf_params);
+
+ /* Learn information crucial for qedf to progress */
+ rc = qed_ops->fill_dev_info(qedf->cdev, &qedf->dev_info);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to dev info.\n");
+ goto err1;
+ }
+
+ /* Record BDQ producer doorbell addresses */
+ qedf->bdq_primary_prod = qedf->dev_info.primary_dbq_rq_addr;
+ qedf->bdq_secondary_prod = qedf->dev_info.secondary_bdq_rq_addr;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "BDQ primary_prod=%p secondary_prod=%p.\n", qedf->bdq_primary_prod,
+ qedf->bdq_secondary_prod);
+
+ qed_ops->register_ops(qedf->cdev, &qedf_cb_ops, qedf);
+
+ rc = qedf_prepare_sb(qedf);
+ if (rc) {
+
+ QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n");
+ goto err2;
+ }
+
+ /* Start the Slowpath-process */
+ slowpath_params.int_mode = QED_INT_MODE_MSIX;
+ slowpath_params.drv_major = QEDF_DRIVER_MAJOR_VER;
+ slowpath_params.drv_minor = QEDF_DRIVER_MINOR_VER;
+ slowpath_params.drv_rev = QEDF_DRIVER_REV_VER;
+ slowpath_params.drv_eng = QEDF_DRIVER_ENG_VER;
+ memcpy(slowpath_params.name, "qedf", QED_DRV_VER_STR_SIZE);
+ rc = qed_ops->common->slowpath_start(qedf->cdev, &slowpath_params);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Cannot start slowpath.\n");
+ goto err2;
+ }
+
+ /*
+ * update_pf_params needs to be called before and after slowpath
+ * start
+ */
+ qed_ops->common->update_pf_params(qedf->cdev, &qedf->pf_params);
+
+ /* Setup interrupts */
+ rc = qedf_setup_int(qedf);
+ if (rc)
+ goto err3;
+
+ rc = qed_ops->start(qedf->cdev, &qedf->tasks);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Cannot start FCoE function.\n");
+ goto err4;
+ }
+ task_start = qedf_get_task_mem(&qedf->tasks, 0);
+ task_end = qedf_get_task_mem(&qedf->tasks, MAX_TID_BLOCKS_FCOE - 1);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Task context start=%p, "
+ "end=%p block_size=%u.\n", task_start, task_end,
+ qedf->tasks.size);
+
+ /*
+ * We need to write the number of BDs in the BDQ we've preallocated so
+ * the f/w will do a prefetch and we'll get an unsolicited CQE when a
+ * packet arrives.
+ */
+ qedf->bdq_prod_idx = QEDF_BDQ_SIZE;
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "Writing %d to primary and secondary BDQ doorbell registers.\n",
+ qedf->bdq_prod_idx);
+ writew(qedf->bdq_prod_idx, qedf->bdq_primary_prod);
+ tmp = readw(qedf->bdq_primary_prod);
+ writew(qedf->bdq_prod_idx, qedf->bdq_secondary_prod);
+ tmp = readw(qedf->bdq_secondary_prod);
+
+ qed_ops->common->set_power_state(qedf->cdev, PCI_D0);
+
+ /* Now that the dev_info struct has been filled in set the MAC
+ * address
+ */
+ ether_addr_copy(qedf->mac, qedf->dev_info.common.hw_mac);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "MAC address is %pM.\n",
+ qedf->mac);
+
+ /* Set the WWNN and WWPN based on the MAC address */
+ qedf->wwnn = fcoe_wwn_from_mac(qedf->mac, 1, 0);
+ qedf->wwpn = fcoe_wwn_from_mac(qedf->mac, 2, 0);
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "WWNN=%016llx "
+ "WWPN=%016llx.\n", qedf->wwnn, qedf->wwpn);
+
+ sprintf(host_buf, "host_%d", host->host_no);
+ qed_ops->common->set_id(qedf->cdev, host_buf, QEDF_VERSION);
+
+
+ /* Set xid max values */
+ qedf->max_scsi_xid = QEDF_MAX_SCSI_XID;
+ qedf->max_els_xid = QEDF_MAX_ELS_XID;
+
+ /* Allocate cmd mgr */
+ qedf->cmd_mgr = qedf_cmd_mgr_alloc(qedf);
+ if (!qedf->cmd_mgr) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to allocate cmd mgr.\n");
+ goto err5;
+ }
+
+ if (mode != QEDF_MODE_RECOVERY) {
+ host->transportt = qedf_fc_transport_template;
+ host->can_queue = QEDF_MAX_ELS_XID;
+ host->max_lun = qedf_max_lun;
+ host->max_cmd_len = QEDF_MAX_CDB_LEN;
+ rc = scsi_add_host(host, &pdev->dev);
+ if (rc)
+ goto err6;
+ }
+
+ memset(¶ms, 0, sizeof(params));
+ params.mtu = 9000;
+ ether_addr_copy(params.ll2_mac_address, qedf->mac);
+
+ /* Start LL2 processing thread */
+ snprintf(host_buf, 20, "qedf_%d_ll2", host->host_no);
+ qedf->ll2_recv_wq =
+ create_singlethread_workqueue(host_buf);
+ if (!qedf->ll2_recv_wq) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to LL2 workqueue.\n");
+ goto err7;
+ }
+
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_host_init(&(qedf->dbg_ctx), &qedf_debugfs_ops,
+ &qedf_dbg_fops);
+#endif
+
+ /* Start LL2 */
+ qed_ops->ll2->register_cb_ops(qedf->cdev, &qedf_ll2_cb_ops, qedf);
+ rc = qed_ops->ll2->start(qedf->cdev, ¶ms);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Could not start Light L2.\n");
+ goto err7;
+ }
+ set_bit(QEDF_LL2_STARTED, &qedf->flags);
+
+ /* hw will be insterting vlan tag*/
+ qedf->vlan_hw_insert = 1;
+ qedf->vlan_id = 0;
+
+ /*
+ * No need to setup fcoe_ctlr or fc_lport objects during recovery since
+ * they were not reaped during the unload process.
+ */
+ if (mode != QEDF_MODE_RECOVERY) {
+ /* Setup imbedded fcoe controller */
+ qedf_fcoe_ctlr_setup(qedf);
+
+ /* Setup lport */
+ rc = qedf_lport_setup(qedf);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "qedf_lport_setup failed.\n");
+ goto err7;
+ }
+ }
+
+ sprintf(host_buf, "qedf_%u_timer", qedf->lport->host->host_no);
+ qedf->timer_work_queue =
+ create_singlethread_workqueue(host_buf);
+ if (!qedf->timer_work_queue) {
+ QEDF_ERR(&(qedf->dbg_ctx), "Failed to start timer "
+ "workqueue.\n");
+ goto err7;
+ }
+
+ /* DPC workqueue is not reaped during recovery unload */
+ if (mode != QEDF_MODE_RECOVERY) {
+ sprintf(host_buf, "qedf_%u_dpc",
+ qedf->lport->host->host_no);
+ qedf->dpc_wq = create_singlethread_workqueue(host_buf);
+ }
+
+ /*
+ * GRC dump and sysfs parameters are not reaped during the recovery
+ * unload process.
+ */
+ if (mode != QEDF_MODE_RECOVERY) {
+ qedf->grcdump_size = qed_ops->common->dbg_grc_size(qedf->cdev);
+ if (qedf->grcdump_size) {
+ rc = qedf_alloc_grc_dump_buf(&qedf->grcdump,
+ qedf->grcdump_size);
+ if (rc) {
+ QEDF_ERR(&(qedf->dbg_ctx),
+ "GRC Dump buffer alloc failed.\n");
+ qedf->grcdump = NULL;
+ }
+
+ QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC,
+ "grcdump: addr=%p, size=%u.\n",
+ qedf->grcdump, qedf->grcdump_size);
+ }
+ qedf_create_sysfs_ctx_attr(qedf);
+
+ /* Initialize I/O tracing for this adapter */
+ spin_lock_init(&qedf->io_trace_lock);
+ qedf->io_trace_idx = 0;
+ }
+
+ init_completion(&qedf->flogi_compl);
+
+ memset(&link_params, 0, sizeof(struct qed_link_params));
+ link_params.link_up = true;
+ status = qed_ops->common->set_link(qedf->cdev, &link_params);
+ if (status)
+ QEDF_WARN(&(qedf->dbg_ctx), "set_link failed.\n");
+
+ /* Start/restart discovery */
+ if (mode == QEDF_MODE_RECOVERY)
+ fcoe_ctlr_link_up(&qedf->ctlr);
+ else
+ fc_fabric_login(lport);
+
+ /* All good */
+ return 0;
+
+err7:
+ if (qedf->ll2_recv_wq)
+ destroy_workqueue(qedf->ll2_recv_wq);
+ fc_remove_host(qedf->lport->host);
+ scsi_remove_host(qedf->lport->host);
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_host_exit(&(qedf->dbg_ctx));
+#endif
+err6:
+ qedf_cmd_mgr_free(qedf->cmd_mgr);
+err5:
+ qed_ops->stop(qedf->cdev);
+err4:
+ qedf_free_fcoe_pf_param(qedf);
+ qedf_sync_free_irqs(qedf);
+err3:
+ qed_ops->common->slowpath_stop(qedf->cdev);
+err2:
+ qed_ops->common->remove(qedf->cdev);
+err1:
+ scsi_host_put(lport->host);
+err0:
+ return rc;
+}
+
+static int qedf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ return __qedf_probe(pdev, QEDF_MODE_NORMAL);
+}
+
+static void __qedf_remove(struct pci_dev *pdev, int mode)
+{
+ struct qedf_ctx *qedf;
+
+ if (!pdev) {
+ QEDF_ERR(NULL, "pdev is NULL.\n");
+ return;
+ }
+
+ qedf = pci_get_drvdata(pdev);
+
+ /*
+ * Prevent race where we're in board disable work and then try to
+ * rmmod the module.
+ */
+ if (test_bit(QEDF_UNLOADING, &qedf->flags)) {
+ QEDF_ERR(&qedf->dbg_ctx, "Already removing PCI function.\n");
+ return;
+ }
+
+ if (mode != QEDF_MODE_RECOVERY)
+ set_bit(QEDF_UNLOADING, &qedf->flags);
+
+ /* Logoff the fabric to upload all connections */
+ if (mode == QEDF_MODE_RECOVERY)
+ fcoe_ctlr_link_down(&qedf->ctlr);
+ else
+ fc_fabric_logoff(qedf->lport);
+ qedf_wait_for_upload(qedf);
+
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_host_exit(&(qedf->dbg_ctx));
+#endif
+
+ /* Stop any link update handling */
+ cancel_delayed_work_sync(&qedf->link_update);
+ destroy_workqueue(qedf->link_update_wq);
+ qedf->link_update_wq = NULL;
+
+ if (qedf->timer_work_queue)
+ destroy_workqueue(qedf->timer_work_queue);
+
+ /* Stop Light L2 */
+ clear_bit(QEDF_LL2_STARTED, &qedf->flags);
+ qed_ops->ll2->stop(qedf->cdev);
+ if (qedf->ll2_recv_wq)
+ destroy_workqueue(qedf->ll2_recv_wq);
+
+ /* Stop fastpath */
+ qedf_sync_free_irqs(qedf);
+ qedf_destroy_sb(qedf);
+
+ /*
+ * During recovery don't destroy OS constructs that represent the
+ * physical port.
+ */
+ if (mode != QEDF_MODE_RECOVERY) {
+ qedf_free_grc_dump_buf(&qedf->grcdump);
+ qedf_remove_sysfs_ctx_attr(qedf);
+
+ /* Remove all SCSI/libfc/libfcoe structures */
+ fcoe_ctlr_destroy(&qedf->ctlr);
+ fc_lport_destroy(qedf->lport);
+ fc_remove_host(qedf->lport->host);
+ scsi_remove_host(qedf->lport->host);
+ }
+
+ qedf_cmd_mgr_free(qedf->cmd_mgr);
+
+ if (mode != QEDF_MODE_RECOVERY) {
+ fc_exch_mgr_free(qedf->lport);
+ fc_lport_free_stats(qedf->lport);
+
+ /* Wait for all vports to be reaped */
+ qedf_wait_for_vport_destroy(qedf);
+ }
+
+ /*
+ * Now that all connections have been uploaded we can stop the
+ * rest of the qed operations
+ */
+ qed_ops->stop(qedf->cdev);
+
+ if (mode != QEDF_MODE_RECOVERY) {
+ if (qedf->dpc_wq) {
+ /* Stop general DPC handling */
+ destroy_workqueue(qedf->dpc_wq);
+ qedf->dpc_wq = NULL;
+ }
+ }
+
+ /* Final shutdown for the board */
+ qedf_free_fcoe_pf_param(qedf);
+ if (mode != QEDF_MODE_RECOVERY) {
+ qed_ops->common->set_power_state(qedf->cdev, PCI_D0);
+ pci_set_drvdata(pdev, NULL);
+ }
+ qed_ops->common->slowpath_stop(qedf->cdev);
+ qed_ops->common->remove(qedf->cdev);
+
+ mempool_destroy(qedf->io_mempool);
+
+ /* Only reap the Scsi_host on a real removal */
+ if (mode != QEDF_MODE_RECOVERY)
+ scsi_host_put(qedf->lport->host);
+}
+
+static void qedf_remove(struct pci_dev *pdev)
+{
+ /* Check to make sure this function wasn't already disabled */
+ if (!atomic_read(&pdev->enable_cnt))
+ return;
+
+ __qedf_remove(pdev, QEDF_MODE_NORMAL);
+}
+
+/*
+ * Module Init/Remove
+ */
+
+static int __init qedf_init(void)
+{
+ int ret;
+
+ /* If debug=1 passed, set the default log mask */
+ if (qedf_debug == QEDF_LOG_DEFAULT)
+ qedf_debug = QEDF_DEFAULT_LOG_MASK;
+
+ /* Print driver banner */
+ QEDF_INFO(NULL, QEDF_LOG_INFO, "%s v%s.\n", QEDF_DESCR,
+ QEDF_VERSION);
+
+ /* Create kmem_cache for qedf_io_work structs */
+ qedf_io_work_cache = kmem_cache_create("qedf_io_work_cache",
+ sizeof(struct qedf_io_work), 0, SLAB_HWCACHE_ALIGN, NULL);
+ if (qedf_io_work_cache == NULL) {
+ QEDF_ERR(NULL, "qedf_io_work_cache is NULL.\n");
+ goto err1;
+ }
+ QEDF_INFO(NULL, QEDF_LOG_DISC, "qedf_io_work_cache=%p.\n",
+ qedf_io_work_cache);
+
+ qed_ops = qed_get_fcoe_ops();
+ if (!qed_ops) {
+ QEDF_ERR(NULL, "Failed to get qed fcoe operations\n");
+ goto err1;
+ }
+
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_init("qedf");
+#endif
+
+ qedf_fc_transport_template =
+ fc_attach_transport(&qedf_fc_transport_fn);
+ if (!qedf_fc_transport_template) {
+ QEDF_ERR(NULL, "Could not register with FC transport\n");
+ goto err2;
+ }
+
+ qedf_fc_vport_transport_template =
+ fc_attach_transport(&qedf_fc_vport_transport_fn);
+ if (!qedf_fc_vport_transport_template) {
+ QEDF_ERR(NULL, "Could not register vport template with FC "
+ "transport\n");
+ goto err3;
+ }
+
+ qedf_io_wq = create_workqueue("qedf_io_wq");
+ if (!qedf_io_wq) {
+ QEDF_ERR(NULL, "Could not create qedf_io_wq.\n");
+ goto err4;
+ }
+
+ qedf_cb_ops.get_login_failures = qedf_get_login_failures;
+
+ ret = pci_register_driver(&qedf_pci_driver);
+ if (ret) {
+ QEDF_ERR(NULL, "Failed to register driver\n");
+ goto err5;
+ }
+
+ return 0;
+
+err5:
+ destroy_workqueue(qedf_io_wq);
+err4:
+ fc_release_transport(qedf_fc_vport_transport_template);
+err3:
+ fc_release_transport(qedf_fc_transport_template);
+err2:
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_exit();
+#endif
+ qed_put_fcoe_ops();
+err1:
+ return -EINVAL;
+}
+
+static void __exit qedf_cleanup(void)
+{
+ pci_unregister_driver(&qedf_pci_driver);
+
+ destroy_workqueue(qedf_io_wq);
+
+ fc_release_transport(qedf_fc_vport_transport_template);
+ fc_release_transport(qedf_fc_transport_template);
+#ifdef CONFIG_DEBUG_FS
+ qedf_dbg_exit();
+#endif
+ qed_put_fcoe_ops();
+
+ kmem_cache_destroy(qedf_io_work_cache);
+}
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("QLogic QEDF 25/40/50/100Gb FCoE Driver");
+MODULE_AUTHOR("QLogic Corporation");
+MODULE_VERSION(QEDF_VERSION);
+module_init(qedf_init);
+module_exit(qedf_cleanup);
diff --git a/drivers/scsi/qedf/qedf_version.h b/drivers/scsi/qedf/qedf_version.h
new file mode 100644
index 0000000..4ae5f53
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_version.h
@@ -0,0 +1,15 @@
+/*
+ * QLogic FCoE Offload Driver
+ * Copyright (c) 2016 Cavium Inc.
+ *
+ * This software is available under the terms of the GNU General Public License
+ * (GPL) Version 2, available from the file COPYING in the main directory of
+ * this source tree.
+ */
+
+#define QEDF_VERSION "8.10.7.0"
+#define QEDF_DRIVER_MAJOR_VER 8
+#define QEDF_DRIVER_MINOR_VER 10
+#define QEDF_DRIVER_REV_VER 7
+#define QEDF_DRIVER_ENG_VER 0
+
--
1.8.5.6
^ permalink raw reply related [flat|nested] 15+ messages in thread
* Re: [PATCH V2 2/2] qedf: Add QLogic FastLinQ offload FCoE driver framework.
2017-01-25 20:33 ` Dupuis, Chad
(?)
@ 2017-01-25 21:53 ` kbuild test robot
-1 siblings, 0 replies; 15+ messages in thread
From: kbuild test robot @ 2017-01-25 21:53 UTC (permalink / raw)
To: Dupuis, Chad
Cc: kbuild-all, martin.petersen, linux-scsi, fcoe-devel, netdev,
yuval.mintz, QLogic-Storage-Upstream
[-- Attachment #1: Type: text/plain, Size: 2329 bytes --]
Hi Chad,
[auto build test WARNING on net/master]
[also build test WARNING on v4.10-rc5 next-20170125]
[cannot apply to net-next/master]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Dupuis-Chad/Add-QLogic-FastLinQ-FCoE-qedf-driver/20170126-044037
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 6.2.0
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=ia64
Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings
All warnings (new ones prefixed by >>):
drivers/scsi/qedf/qedf_main.c: In function '__qedf_probe.constprop':
>> drivers/scsi/qedf/qedf_main.c:2764:6: warning: 'rc' may be used uninitialized in this function [-Wmaybe-uninitialized]
int rc;
^~
drivers/scsi/qedf/qedf_main.c: In function 'qedf_link_recovery':
>> drivers/scsi/qedf/qedf_main.c:286:24: warning: 'rdata' may be used uninitialized in this function [-Wmaybe-uninitialized]
struct fc_rport_priv *rdata;
^~~~~
vim +/rc +2764 drivers/scsi/qedf/qedf_main.c
2748 static const struct pci_device_id qedf_pci_tbl[] = {
2749 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x165c) },
2750 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x8080) },
2751 {0}
2752 };
2753 MODULE_DEVICE_TABLE(pci, qedf_pci_tbl);
2754
2755 static struct pci_driver qedf_pci_driver = {
2756 .name = QEDF_MODULE_NAME,
2757 .id_table = qedf_pci_tbl,
2758 .probe = qedf_probe,
2759 .remove = qedf_remove,
2760 };
2761
2762 static int __qedf_probe(struct pci_dev *pdev, int mode)
2763 {
> 2764 int rc;
2765 struct fc_lport *lport;
2766 struct qedf_ctx *qedf;
2767 struct Scsi_Host *host;
2768 bool is_vf = false;
2769 struct qed_ll2_params params;
2770 char host_buf[20];
2771 struct qed_link_params link_params;
2772 int status;
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 45500 bytes --]
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH V2 net-next 1/2] qed: Add support for hardware offloaded FCoE.
[not found] ` <1485376423-18737-2-git-send-email-chad.dupuis-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
@ 2017-01-30 9:44 ` Hannes Reinecke
2017-01-30 18:53 ` Arun Easi
0 siblings, 1 reply; 15+ messages in thread
From: Hannes Reinecke @ 2017-01-30 9:44 UTC (permalink / raw)
To: Dupuis, Chad, martin.petersen-QHcLZuEGTsvQT0dZR+AlfA
Cc: fcoe-devel-s9riP+hp16TNLxjTenLetw, netdev-u79uwXL29TY76Z2rM5mHXA,
QLogic-Storage-Upstream-YGCgFSpz5w/QT0dZR+AlfA,
linux-scsi-u79uwXL29TY76Z2rM5mHXA,
yuval.mintz-YGCgFSpz5w/QT0dZR+AlfA
On 01/25/2017 09:33 PM, Dupuis, Chad wrote:
> From: Arun Easi <arun.easi-h88ZbnxC6KDQT0dZR+AlfA@public.gmane.org>
>
> This adds the backbone required for the various HW initalizations
> which are necessary for the FCoE driver (qedf) for QLogic FastLinQ
> 4xxxx line of adapters - FW notification, resource initializations, etc.
>
> Signed-off-by: Arun Easi <arun.easi-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
> Signed-off-by: Yuval Mintz <yuval.mintz-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
> ---
> drivers/net/ethernet/qlogic/Kconfig | 3 +
> drivers/net/ethernet/qlogic/qed/Makefile | 1 +
> drivers/net/ethernet/qlogic/qed/qed.h | 11 +
> drivers/net/ethernet/qlogic/qed/qed_cxt.c | 98 ++-
> drivers/net/ethernet/qlogic/qed/qed_cxt.h | 3 +
> drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 13 +-
> drivers/net/ethernet/qlogic/qed/qed_dcbx.h | 5 +-
> drivers/net/ethernet/qlogic/qed/qed_dev.c | 205 ++++-
> drivers/net/ethernet/qlogic/qed/qed_dev_api.h | 42 +
> drivers/net/ethernet/qlogic/qed/qed_fcoe.c | 990 ++++++++++++++++++++++
> drivers/net/ethernet/qlogic/qed/qed_fcoe.h | 52 ++
> drivers/net/ethernet/qlogic/qed/qed_hsi.h | 781 ++++++++++++++++-
> drivers/net/ethernet/qlogic/qed/qed_hw.c | 3 +
> drivers/net/ethernet/qlogic/qed/qed_ll2.c | 25 +
> drivers/net/ethernet/qlogic/qed/qed_ll2.h | 2 +-
> drivers/net/ethernet/qlogic/qed/qed_main.c | 7 +
> drivers/net/ethernet/qlogic/qed/qed_mcp.c | 3 +
> drivers/net/ethernet/qlogic/qed/qed_mcp.h | 1 +
> drivers/net/ethernet/qlogic/qed/qed_reg_addr.h | 8 +
> drivers/net/ethernet/qlogic/qed/qed_sp.h | 4 +
> drivers/net/ethernet/qlogic/qed/qed_sp_commands.c | 3 +
> include/linux/qed/common_hsi.h | 10 +-
> include/linux/qed/fcoe_common.h | 715 ++++++++++++++++
> include/linux/qed/qed_fcoe_if.h | 145 ++++
> include/linux/qed/qed_if.h | 41 +-
> 25 files changed, 3152 insertions(+), 19 deletions(-)
> create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
> create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
> create mode 100644 include/linux/qed/fcoe_common.h
> create mode 100644 include/linux/qed/qed_fcoe_if.h
>
[ .. ]
> diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
> index d70300f..0fabe97 100644
> --- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
> +++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
> @@ -57,7 +57,6 @@ struct qed_dcbx_app_data {
> u8 tc; /* Traffic Class */
> };
>
> -#ifdef CONFIG_DCB
> #define QED_DCBX_VERSION_DISABLED 0
> #define QED_DCBX_VERSION_IEEE 1
> #define QED_DCBX_VERSION_CEE 2
> @@ -73,7 +72,6 @@ struct qed_dcbx_set {
> struct qed_dcbx_admin_params config;
> u32 ver_num;
> };
> -#endif
>
> struct qed_dcbx_results {
> bool dcbx_enabled;
> @@ -97,9 +95,8 @@ struct qed_dcbx_info {
> struct qed_dcbx_results results;
> struct dcbx_mib operational;
> struct dcbx_mib remote;
> -#ifdef CONFIG_DCB
> struct qed_dcbx_set set;
> -#endif
> + struct qed_dcbx_get get;
> u8 dcbx_cap;
> };
>
Why did you remove the dependency on 'CONFIG_DCB'?
Other than that:
Reviewed-by: Hannes Reinecke <hare-IBi9RG/b67k@public.gmane.org>
Cheers,
Hannes
--
Dr. Hannes Reinecke Teamlead Storage & Networking
hare-l3A5Bk7waGM@public.gmane.org +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH V2 2/2] qedf: Add QLogic FastLinQ offload FCoE driver framework.
[not found] ` <1485376423-18737-3-git-send-email-chad.dupuis-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
@ 2017-01-30 10:34 ` Hannes Reinecke
[not found] ` <28df9087-4eaf-d72c-ccee-89408d3a1b32-l3A5Bk7waGM@public.gmane.org>
2017-01-31 18:38 ` Chad Dupuis
0 siblings, 2 replies; 15+ messages in thread
From: Hannes Reinecke @ 2017-01-30 10:34 UTC (permalink / raw)
To: Dupuis, Chad, martin.petersen-QHcLZuEGTsvQT0dZR+AlfA
Cc: fcoe-devel-s9riP+hp16TNLxjTenLetw, netdev-u79uwXL29TY76Z2rM5mHXA,
QLogic-Storage-Upstream-YGCgFSpz5w/QT0dZR+AlfA,
linux-scsi-u79uwXL29TY76Z2rM5mHXA,
yuval.mintz-YGCgFSpz5w/QT0dZR+AlfA
On 01/25/2017 09:33 PM, Dupuis, Chad wrote:
> From: "Dupuis, Chad" <chad.dupuis-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
>
> The QLogic FastLinQ Driver for FCoE (qedf) is the FCoE specific module for 41000
> Series Converged Network Adapters by QLogic. This patch consists of following
> changes:
>
> - MAINTAINERS Makefile and Kconfig changes for qedf
> - PCI driver registration
> - libfc/fcoe host level initialization
> - SCSI host template initialization and callbacks
> - Debugfs and log level infrastructure
> - Link handling
> - Firmware interface structures
> - QED core module initialization
> - Light L2 interface callbacks
> - I/O request initialization
> - Firmware I/O completion handling
> - Firmware ELS request/response handling
> - FIP request/response handled by the driver itself
>
> Signed-off-by: Nilesh Javali <nilesh.javali-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
> Signed-off-by: Manish Rangankar <manish.rangankar-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
> Signed-off-by: Saurav Kashyap <saurav.kashyap-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
> Signed-off-by: Arun Easi <arun.easi-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
> Signed-off-by: Chad Dupuis <chad.dupuis-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
> ---
[ .. ]
> +#define QEDF_IO_WORK_MIN 64
> + mempool_t *io_mempool;
> + struct workqueue_struct *dpc_wq;
> +
> + u32 slow_sge_ios;
> + u32 fast_sge_ios;
> + u32 single_sge_ios;
> +
> + uint8_t *grcdump;
> + uint32_t grcdump_size;
> +
> + struct qedf_io_log io_trace_buf[QEDF_IO_TRACE_SIZE];
> + spinlock_t io_trace_lock;
> + uint16_t io_trace_idx;
> +
> + bool stop_io_on_error;
> +
> + u32 flogi_cnt;
> + u32 flogi_failed;
> +
> + /* Used for fc statistics */
> + u64 input_requests;
> + u64 output_requests;
> + u64 control_requests;
> + u64 packet_aborts;
> + u64 alloc_failures;
> +};
> +
> +/*
> + * 4 regs size $$KEEP_ENDIANNESS$$
> + */
> +
What is this supposed to mean?
Does it refer to the next structure?
> +struct io_bdt {
> + struct qedf_ioreq *io_req;
> + struct fcoe_sge *bd_tbl;
> + dma_addr_t bd_tbl_dma;
> + u16 bd_valid;
> +};
> +
[ .. ]
> +
> +static inline void qedf_stop_all_io(struct qedf_ctx *qedf)
> +{
> + set_bit(QEDF_UNLOADING, &qedf->flags);
> +}
> +
This looks like a misnomer.
Why is 'UNLOADING' equivalent to stopping all I/O?
I could imagine quite some situations where I would want to stop I/O
without unloading the driver.
Please use better naming here; either name the bit 'QEDF_STOP_IO' or
something or call the function 'qedf_is_unloading'.
[ .. ]
> +/*
> + * In instances where an ELS command times out we may need to restart the
> + * rport by logging out and then logging back in.
> + */
> +void qedf_restart_rport(struct qedf_rport *fcport)
> +{
> + struct fc_lport *lport;
> + struct fc_rport_priv *rdata;
> + u32 port_id;
> +
> + if (!fcport)
> + return;
> +
> + rdata = fcport->rdata;
> + if (rdata) {
> + lport = fcport->qedf->lport;
> + port_id = rdata->ids.port_id;
> + QEDF_ERR(&(fcport->qedf->dbg_ctx),
> + "LOGO port_id=%x.\n", port_id);
> + mutex_lock(&lport->disc.disc_mutex);
> + fc_rport_logoff(rdata);
> + /* Recreate the rport and log back in */
> + rdata = fc_rport_create(lport, port_id);
> + if (rdata)
> + fc_rport_login(rdata);
> + mutex_unlock(&lport->disc.disc_mutex);
> + }
> +}
> +
Please don't hold the discovery mutex when calling fc_rport_logoff().
Calling rport_logoff might call into exch_mgr_reset() which in turn
might need to take the discover mutex.
[ .. ]
> + if (opcode == ELS_LS_RJT) {
> + rjt = fc_frame_payload_get(fp, sizeof(*rjt));
> + QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
> + "Received LS_RJT for REC: er_reason=0x%x, "
> + "er_explan=0x%x.\n", rjt->er_reason, rjt->er_explan);
> + /*
> + * The following response(s) mean that we need to reissue the
> + * request on another exchange. We need to do this without
> + * informing the upper layers lest it cause an application
> + * error.
> + */
> + if ((rjt->er_reason == ELS_RJT_LOGIC ||
> + rjt->er_reason == ELS_RJT_UNAB) &&
> + rjt->er_explan == ELS_EXPL_OXID_RXID) {
> + QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
> + "Handle CMD LOST case.\n");
> + qedf_requeue_io_req(orig_io_req);
> + }
Care to explain this?
I found requeing within the driver without notifying the upper layers
deeply troubling.
I've came across this (or a similar issue) during implementing
FCoE over virtio; there it turned out to be an issue with the target not
handling frames in the correct order.
So it looks you are attempting to solve the problem of a REC being sent
for a command which is not know at the target.
Meaning it's either lost in the fabric, hasn't been seen by the target
(yet), or having already been processed by the target.
The above code would only solve the second problem; however, that would
indicate a command ordering issue as the REC would have arrived at the
target _before_ the originating command.
So doing a resend would only help for _that_ specific case, not for the
others.
And it's not quite clear why resending with a different OXID would help
here; typically it's the _RXID_ which isn't found ...
[ .. ]
> +static void qedf_fcoe_process_vlan_resp(struct qedf_ctx *qedf,
> + struct sk_buff *skb)
> +{
> + struct fip_header *fiph;
> + struct fip_desc *desc;
> + u16 vid = 0;
> + ssize_t rlen;
> + size_t dlen;
> +
> + fiph = (struct fip_header *)(((void *)skb->data) + 2 * ETH_ALEN + 2);
> +
> + rlen = ntohs(fiph->fip_dl_len) * 4;
> + desc = (struct fip_desc *)(fiph + 1);
> + while (rlen > 0) {
> + dlen = desc->fip_dlen * FIP_BPW;
> + switch (desc->fip_dtype) {
> + case FIP_DT_VLAN:
> + vid = ntohs(((struct fip_vlan_desc *)desc)->fd_vlan);
> + break;
> + }
> + desc = (struct fip_desc *)((char *)desc + dlen);
> + rlen -= dlen;
> + }
> +
> + QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "VLAN response, "
> + "vid=0x%x.\n", vid);
> +
> + if (vid > 0 && qedf->vlan_id != vid) {
> + qedf_set_vlan_id(qedf, vid);
> +
> + /* Inform waiter that it's ok to call fcoe_ctlr_link up() */
> + complete(&qedf->fipvlan_compl);
> + }
> +}
> +
As mentioned, this will fail for HP VirtualConnect, which return a vid
of '0', indicating that the FCoE link should run on the interface itself.
And this is actually a valid response, I would think that you should be
calling complete() for any response ...
[ .. ]
> +/*
> + * FCoE CQ element
> + */
> +struct fcoe_cqe {
> + __le32 cqe_data;
> + /* The task identifier (OX_ID) to be completed */
> +#define FCOE_CQE_TASK_ID_MASK 0xFFFF
> +#define FCOE_CQE_TASK_ID_SHIFT 0
> + /*
> + * The CQE type: 0x0 Indicating on a pending work request completion.
> + * 0x1 - Indicating on an unsolicited event notification. use enum
> + * fcoe_cqe_type (use enum fcoe_cqe_type)
> + */
> +#define FCOE_CQE_CQE_TYPE_MASK 0xF
> +#define FCOE_CQE_CQE_TYPE_SHIFT 16
> +#define FCOE_CQE_RESERVED0_MASK 0xFFF
> +#define FCOE_CQE_RESERVED0_SHIFT 20
> + __le16 reserved1;
> + __le16 fw_cq_prod;
> + union fcoe_cqe_info cqe_info;
> +};
> +
> +
> +
> +
> +
> +
These lines intentionally left blank?
[ .. ]
> +static int qedf_request_msix_irq(struct qedf_ctx *qedf)
> +{
> + int i, rc, cpu;
> +
> + cpu = cpumask_first(cpu_online_mask);
> + for (i = 0; i < qedf->num_queues; i++) {
> + rc = request_irq(qedf->int_info.msix[i].vector,
> + qedf_msix_handler, 0, "qedf", &qedf->fp_array[i]);
> +
> + if (rc) {
> + QEDF_WARN(&(qedf->dbg_ctx), "request_irq failed.\n");
> + qedf_sync_free_irqs(qedf);
> + return rc;
> + }
> +
> + qedf->int_info.used_cnt++;
> + rc = irq_set_affinity_hint(qedf->int_info.msix[i].vector,
> + get_cpu_mask(cpu));
> + cpu = cpumask_next(cpu, cpu_online_mask);
> + }
> +
> + return 0;
> +}
> +
Please use pci_alloc_irq_vectors() here; that avoid you having to do SMP
affinity setting yourself.
Cheers,
Hannes
--
Dr. Hannes Reinecke Teamlead Storage & Networking
hare-l3A5Bk7waGM@public.gmane.org +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH V2 net-next 1/2] qed: Add support for hardware offloaded FCoE.
2017-01-30 9:44 ` Hannes Reinecke
@ 2017-01-30 18:53 ` Arun Easi
0 siblings, 0 replies; 15+ messages in thread
From: Arun Easi @ 2017-01-30 18:53 UTC (permalink / raw)
To: Hannes Reinecke
Cc: Dupuis, Chad, martin.petersen, linux-scsi, fcoe-devel, netdev,
yuval.mintz, QLogic-Storage-Upstream
On Mon, 30 Jan 2017, 1:44am, Hannes Reinecke wrote:
> On 01/25/2017 09:33 PM, Dupuis, Chad wrote:
> > From: Arun Easi <arun.easi@qlogic.com>
> >
> > This adds the backbone required for the various HW initalizations
> > which are necessary for the FCoE driver (qedf) for QLogic FastLinQ
> > 4xxxx line of adapters - FW notification, resource initializations, etc.
> >
> > Signed-off-by: Arun Easi <arun.easi@cavium.com>
> > Signed-off-by: Yuval Mintz <yuval.mintz@cavium.com>
> > ---
> > drivers/net/ethernet/qlogic/Kconfig | 3 +
> > drivers/net/ethernet/qlogic/qed/Makefile | 1 +
> > drivers/net/ethernet/qlogic/qed/qed.h | 11 +
> > drivers/net/ethernet/qlogic/qed/qed_cxt.c | 98 ++-
> > drivers/net/ethernet/qlogic/qed/qed_cxt.h | 3 +
> > drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 13 +-
> > drivers/net/ethernet/qlogic/qed/qed_dcbx.h | 5 +-
> > drivers/net/ethernet/qlogic/qed/qed_dev.c | 205 ++++-
> > drivers/net/ethernet/qlogic/qed/qed_dev_api.h | 42 +
> > drivers/net/ethernet/qlogic/qed/qed_fcoe.c | 990 ++++++++++++++++++++++
> > drivers/net/ethernet/qlogic/qed/qed_fcoe.h | 52 ++
> > drivers/net/ethernet/qlogic/qed/qed_hsi.h | 781 ++++++++++++++++-
> > drivers/net/ethernet/qlogic/qed/qed_hw.c | 3 +
> > drivers/net/ethernet/qlogic/qed/qed_ll2.c | 25 +
> > drivers/net/ethernet/qlogic/qed/qed_ll2.h | 2 +-
> > drivers/net/ethernet/qlogic/qed/qed_main.c | 7 +
> > drivers/net/ethernet/qlogic/qed/qed_mcp.c | 3 +
> > drivers/net/ethernet/qlogic/qed/qed_mcp.h | 1 +
> > drivers/net/ethernet/qlogic/qed/qed_reg_addr.h | 8 +
> > drivers/net/ethernet/qlogic/qed/qed_sp.h | 4 +
> > drivers/net/ethernet/qlogic/qed/qed_sp_commands.c | 3 +
> > include/linux/qed/common_hsi.h | 10 +-
> > include/linux/qed/fcoe_common.h | 715 ++++++++++++++++
> > include/linux/qed/qed_fcoe_if.h | 145 ++++
> > include/linux/qed/qed_if.h | 41 +-
> > 25 files changed, 3152 insertions(+), 19 deletions(-)
> > create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
> > create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
> > create mode 100644 include/linux/qed/fcoe_common.h
> > create mode 100644 include/linux/qed/qed_fcoe_if.h
> >
> [ .. ]
> > diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
> > index d70300f..0fabe97 100644
> > --- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
> > +++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
> > @@ -57,7 +57,6 @@ struct qed_dcbx_app_data {
> > u8 tc; /* Traffic Class */
> > };
> >
> > -#ifdef CONFIG_DCB
> > #define QED_DCBX_VERSION_DISABLED 0
> > #define QED_DCBX_VERSION_IEEE 1
> > #define QED_DCBX_VERSION_CEE 2
> > @@ -73,7 +72,6 @@ struct qed_dcbx_set {
> > struct qed_dcbx_admin_params config;
> > u32 ver_num;
> > };
> > -#endif
> >
> > struct qed_dcbx_results {
> > bool dcbx_enabled;
> > @@ -97,9 +95,8 @@ struct qed_dcbx_info {
> > struct qed_dcbx_results results;
> > struct dcbx_mib operational;
> > struct dcbx_mib remote;
> > -#ifdef CONFIG_DCB
> > struct qed_dcbx_set set;
> > -#endif
> > + struct qed_dcbx_get get;
> > u8 dcbx_cap;
> > };
> >
> Why did you remove the dependency on 'CONFIG_DCB'?
Thanks Hannes for the review.
The offloaded functions are not dependent on CONFIG_DCB; the DCB
functionality is handled by the firmware for them. The above '#ifdef'-ed
part is shared by offloaded functions, and should be present regardless of
the CONFIG_DCB setting.
Regards,
-Arun
>
> Other than that:
>
> Reviewed-by: Hannes Reinecke <hare@suse.com>
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH V2 net-next 1/2] qed: Add support for hardware offloaded FCoE.
@ 2017-01-30 18:53 ` Arun Easi
0 siblings, 0 replies; 15+ messages in thread
From: Arun Easi @ 2017-01-30 18:53 UTC (permalink / raw)
To: Hannes Reinecke
Cc: Dupuis, Chad, martin.petersen, linux-scsi, fcoe-devel, netdev,
yuval.mintz, QLogic-Storage-Upstream
On Mon, 30 Jan 2017, 1:44am, Hannes Reinecke wrote:
> On 01/25/2017 09:33 PM, Dupuis, Chad wrote:
> > From: Arun Easi <arun.easi@qlogic.com>
> >
> > This adds the backbone required for the various HW initalizations
> > which are necessary for the FCoE driver (qedf) for QLogic FastLinQ
> > 4xxxx line of adapters - FW notification, resource initializations, etc.
> >
> > Signed-off-by: Arun Easi <arun.easi@cavium.com>
> > Signed-off-by: Yuval Mintz <yuval.mintz@cavium.com>
> > ---
> > drivers/net/ethernet/qlogic/Kconfig | 3 +
> > drivers/net/ethernet/qlogic/qed/Makefile | 1 +
> > drivers/net/ethernet/qlogic/qed/qed.h | 11 +
> > drivers/net/ethernet/qlogic/qed/qed_cxt.c | 98 ++-
> > drivers/net/ethernet/qlogic/qed/qed_cxt.h | 3 +
> > drivers/net/ethernet/qlogic/qed/qed_dcbx.c | 13 +-
> > drivers/net/ethernet/qlogic/qed/qed_dcbx.h | 5 +-
> > drivers/net/ethernet/qlogic/qed/qed_dev.c | 205 ++++-
> > drivers/net/ethernet/qlogic/qed/qed_dev_api.h | 42 +
> > drivers/net/ethernet/qlogic/qed/qed_fcoe.c | 990 ++++++++++++++++++++++
> > drivers/net/ethernet/qlogic/qed/qed_fcoe.h | 52 ++
> > drivers/net/ethernet/qlogic/qed/qed_hsi.h | 781 ++++++++++++++++-
> > drivers/net/ethernet/qlogic/qed/qed_hw.c | 3 +
> > drivers/net/ethernet/qlogic/qed/qed_ll2.c | 25 +
> > drivers/net/ethernet/qlogic/qed/qed_ll2.h | 2 +-
> > drivers/net/ethernet/qlogic/qed/qed_main.c | 7 +
> > drivers/net/ethernet/qlogic/qed/qed_mcp.c | 3 +
> > drivers/net/ethernet/qlogic/qed/qed_mcp.h | 1 +
> > drivers/net/ethernet/qlogic/qed/qed_reg_addr.h | 8 +
> > drivers/net/ethernet/qlogic/qed/qed_sp.h | 4 +
> > drivers/net/ethernet/qlogic/qed/qed_sp_commands.c | 3 +
> > include/linux/qed/common_hsi.h | 10 +-
> > include/linux/qed/fcoe_common.h | 715 ++++++++++++++++
> > include/linux/qed/qed_fcoe_if.h | 145 ++++
> > include/linux/qed/qed_if.h | 41 +-
> > 25 files changed, 3152 insertions(+), 19 deletions(-)
> > create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
> > create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
> > create mode 100644 include/linux/qed/fcoe_common.h
> > create mode 100644 include/linux/qed/qed_fcoe_if.h
> >
> [ .. ]
> > diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
> > index d70300f..0fabe97 100644
> > --- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
> > +++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.h
> > @@ -57,7 +57,6 @@ struct qed_dcbx_app_data {
> > u8 tc; /* Traffic Class */
> > };
> >
> > -#ifdef CONFIG_DCB
> > #define QED_DCBX_VERSION_DISABLED 0
> > #define QED_DCBX_VERSION_IEEE 1
> > #define QED_DCBX_VERSION_CEE 2
> > @@ -73,7 +72,6 @@ struct qed_dcbx_set {
> > struct qed_dcbx_admin_params config;
> > u32 ver_num;
> > };
> > -#endif
> >
> > struct qed_dcbx_results {
> > bool dcbx_enabled;
> > @@ -97,9 +95,8 @@ struct qed_dcbx_info {
> > struct qed_dcbx_results results;
> > struct dcbx_mib operational;
> > struct dcbx_mib remote;
> > -#ifdef CONFIG_DCB
> > struct qed_dcbx_set set;
> > -#endif
> > + struct qed_dcbx_get get;
> > u8 dcbx_cap;
> > };
> >
> Why did you remove the dependency on 'CONFIG_DCB'?
Thanks Hannes for the review.
The offloaded functions are not dependent on CONFIG_DCB; the DCB
functionality is handled by the firmware for them. The above '#ifdef'-ed
part is shared by offloaded functions, and should be present regardless of
the CONFIG_DCB setting.
Regards,
-Arun
>
> Other than that:
>
> Reviewed-by: Hannes Reinecke <hare@suse.com>
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH V2 2/2] qedf: Add QLogic FastLinQ offload FCoE driver framework.
[not found] ` <28df9087-4eaf-d72c-ccee-89408d3a1b32-l3A5Bk7waGM@public.gmane.org>
@ 2017-01-31 17:08 ` Chad Dupuis
[not found] ` <alpine.OSX.2.00.1701311156290.1169-nVgGmETfwnIFUnR/tdpssI0aTaFgKE92ACYyPGjX6YU@public.gmane.org>
0 siblings, 1 reply; 15+ messages in thread
From: Chad Dupuis @ 2017-01-31 17:08 UTC (permalink / raw)
To: Hannes Reinecke
Cc: martin.petersen-QHcLZuEGTsvQT0dZR+AlfA,
linux-scsi-u79uwXL29TY76Z2rM5mHXA, netdev-u79uwXL29TY76Z2rM5mHXA,
yuval.mintz-YGCgFSpz5w/QT0dZR+AlfA,
fcoe-devel-s9riP+hp16TNLxjTenLetw,
QLogic-Storage-Upstream-YGCgFSpz5w/QT0dZR+AlfA
On Mon, 30 Jan 2017, 10:34am -0000, Hannes Reinecke wrote:
> On 01/25/2017 09:33 PM, Dupuis, Chad wrote:
> > From: "Dupuis, Chad" <chad.dupuis-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
> >
> > The QLogic FastLinQ Driver for FCoE (qedf) is the FCoE specific module for 41000
> > Series Converged Network Adapters by QLogic. This patch consists of following
> > changes:
> >
> > - MAINTAINERS Makefile and Kconfig changes for qedf
> > - PCI driver registration
> > - libfc/fcoe host level initialization
> > - SCSI host template initialization and callbacks
> > - Debugfs and log level infrastructure
> > - Link handling
> > - Firmware interface structures
> > - QED core module initialization
> > - Light L2 interface callbacks
> > - I/O request initialization
> > - Firmware I/O completion handling
> > - Firmware ELS request/response handling
> > - FIP request/response handled by the driver itself
> >
> > Signed-off-by: Nilesh Javali <nilesh.javali-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
> > Signed-off-by: Manish Rangankar <manish.rangankar-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
> > Signed-off-by: Saurav Kashyap <saurav.kashyap-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
> > Signed-off-by: Arun Easi <arun.easi-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
> > Signed-off-by: Chad Dupuis <chad.dupuis-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
> > ---
> [ .. ]
> > +#define QEDF_IO_WORK_MIN 64
> > + mempool_t *io_mempool;
> > + struct workqueue_struct *dpc_wq;
> > +
> > + u32 slow_sge_ios;
> > + u32 fast_sge_ios;
> > + u32 single_sge_ios;
> > +
> > + uint8_t *grcdump;
> > + uint32_t grcdump_size;
> > +
> > + struct qedf_io_log io_trace_buf[QEDF_IO_TRACE_SIZE];
> > + spinlock_t io_trace_lock;
> > + uint16_t io_trace_idx;
> > +
> > + bool stop_io_on_error;
> > +
> > + u32 flogi_cnt;
> > + u32 flogi_failed;
> > +
> > + /* Used for fc statistics */
> > + u64 input_requests;
> > + u64 output_requests;
> > + u64 control_requests;
> > + u64 packet_aborts;
> > + u64 alloc_failures;
> > +};
> > +
> > +/*
> > + * 4 regs size $$KEEP_ENDIANNESS$$
> > + */
> > +
> What is this supposed to mean?
> Does it refer to the next structure?
I think it's a superfluous comment. I'll remove it.
>
> > +struct io_bdt {
> > + struct qedf_ioreq *io_req;
> > + struct fcoe_sge *bd_tbl;
> > + dma_addr_t bd_tbl_dma;
> > + u16 bd_valid;
> > +};
> > +
> [ .. ]
>
> > +
> > +static inline void qedf_stop_all_io(struct qedf_ctx *qedf)
> > +{
> > + set_bit(QEDF_UNLOADING, &qedf->flags);
> > +}
> > +
> This looks like a misnomer.
> Why is 'UNLOADING' equivalent to stopping all I/O?
> I could imagine quite some situations where I would want to stop I/O
> without unloading the driver.
>
> Please use better naming here; either name the bit 'QEDF_STOP_IO' or
> something or call the function 'qedf_is_unloading'.
>
This is more a debugfs mechanism to be able to stop i/o from a script or
other outside entity. I was piggy-backing off of functionality that stops
I/O submission while the driver is unloading but I'll add a define
specific to debug stopping of I/O.
>
> [ .. ]
> > +/*
> > + * In instances where an ELS command times out we may need to restart the
> > + * rport by logging out and then logging back in.
> > + */
> > +void qedf_restart_rport(struct qedf_rport *fcport)
> > +{
> > + struct fc_lport *lport;
> > + struct fc_rport_priv *rdata;
> > + u32 port_id;
> > +
> > + if (!fcport)
> > + return;
> > +
> > + rdata = fcport->rdata;
> > + if (rdata) {
> > + lport = fcport->qedf->lport;
> > + port_id = rdata->ids.port_id;
> > + QEDF_ERR(&(fcport->qedf->dbg_ctx),
> > + "LOGO port_id=%x.\n", port_id);
> > + mutex_lock(&lport->disc.disc_mutex);
> > + fc_rport_logoff(rdata);
> > + /* Recreate the rport and log back in */
> > + rdata = fc_rport_create(lport, port_id);
> > + if (rdata)
> > + fc_rport_login(rdata);
> > + mutex_unlock(&lport->disc.disc_mutex);
> > + }
> > +}
> > +
> Please don't hold the discovery mutex when calling fc_rport_logoff().
> Calling rport_logoff might call into exch_mgr_reset() which in turn
> might need to take the discover mutex.
Looking at other code it looked like this mutex was held when logging off
the port and then logging on. I'll remove it however.
>
> [ .. ]
> > + if (opcode == ELS_LS_RJT) {
> > + rjt = fc_frame_payload_get(fp, sizeof(*rjt));
> > + QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
> > + "Received LS_RJT for REC: er_reason=0x%x, "
> > + "er_explan=0x%x.\n", rjt->er_reason, rjt->er_explan);
> > + /*
> > + * The following response(s) mean that we need to reissue the
> > + * request on another exchange. We need to do this without
> > + * informing the upper layers lest it cause an application
> > + * error.
> > + */
> > + if ((rjt->er_reason == ELS_RJT_LOGIC ||
> > + rjt->er_reason == ELS_RJT_UNAB) &&
> > + rjt->er_explan == ELS_EXPL_OXID_RXID) {
> > + QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
> > + "Handle CMD LOST case.\n");
> > + qedf_requeue_io_req(orig_io_req);
> > + }
>
> Care to explain this?
> I found requeing within the driver without notifying the upper layers
> deeply troubling.
> I've came across this (or a similar issue) during implementing
> FCoE over virtio; there it turned out to be an issue with the target not
> handling frames in the correct order.
> So it looks you are attempting to solve the problem of a REC being sent
> for a command which is not know at the target.
> Meaning it's either lost in the fabric, hasn't been seen by the target
> (yet), or having already been processed by the target.
>
> The above code would only solve the second problem; however, that would
> indicate a command ordering issue as the REC would have arrived at the
> target _before_ the originating command.
> So doing a resend would only help for _that_ specific case, not for the
> others.
> And it's not quite clear why resending with a different OXID would help
> here; typically it's the _RXID_ which isn't found ...
The problem I've observed is that If I return an error to the SCSI layer
it propogates up to the st driver and the test application would fail
since st would fail the I/O. As the comment explains we do this on
another exchange internally in the driver so as not to cause the tape
backup application/test to fail.
bnx2fc behaves like this IIRC.
>
> [ .. ]
> > +static void qedf_fcoe_process_vlan_resp(struct qedf_ctx *qedf,
> > + struct sk_buff *skb)
> > +{
> > + struct fip_header *fiph;
> > + struct fip_desc *desc;
> > + u16 vid = 0;
> > + ssize_t rlen;
> > + size_t dlen;
> > +
> > + fiph = (struct fip_header *)(((void *)skb->data) + 2 * ETH_ALEN + 2);
> > +
> > + rlen = ntohs(fiph->fip_dl_len) * 4;
> > + desc = (struct fip_desc *)(fiph + 1);
> > + while (rlen > 0) {
> > + dlen = desc->fip_dlen * FIP_BPW;
> > + switch (desc->fip_dtype) {
> > + case FIP_DT_VLAN:
> > + vid = ntohs(((struct fip_vlan_desc *)desc)->fd_vlan);
> > + break;
> > + }
> > + desc = (struct fip_desc *)((char *)desc + dlen);
> > + rlen -= dlen;
> > + }
> > +
> > + QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "VLAN response, "
> > + "vid=0x%x.\n", vid);
> > +
> > + if (vid > 0 && qedf->vlan_id != vid) {
> > + qedf_set_vlan_id(qedf, vid);
> > +
> > + /* Inform waiter that it's ok to call fcoe_ctlr_link up() */
> > + complete(&qedf->fipvlan_compl);
> > + }
> > +}
> > +
> As mentioned, this will fail for HP VirtualConnect, which return a vid
> of '0', indicating that the FCoE link should run on the interface itself.
> And this is actually a valid response, I would think that you should be
> calling complete() for any response ...
In testing I would get responses that would seem to contain VID 0 but then
subsequent responses contain the valid VID. If I try to go with a VID of
0 FIP discovery would fail. It could be possible that there's a bug in
the code that parses the FIP VLAN response but I'll like to leave this in
for now and it can be removed once I figure where the issue may be.
>
> [ .. ]
> > +/*
> > + * FCoE CQ element
> > + */
> > +struct fcoe_cqe {
> > + __le32 cqe_data;
> > + /* The task identifier (OX_ID) to be completed */
> > +#define FCOE_CQE_TASK_ID_MASK 0xFFFF
> > +#define FCOE_CQE_TASK_ID_SHIFT 0
> > + /*
> > + * The CQE type: 0x0 Indicating on a pending work request completion.
> > + * 0x1 - Indicating on an unsolicited event notification. use enum
> > + * fcoe_cqe_type (use enum fcoe_cqe_type)
> > + */
> > +#define FCOE_CQE_CQE_TYPE_MASK 0xF
> > +#define FCOE_CQE_CQE_TYPE_SHIFT 16
> > +#define FCOE_CQE_RESERVED0_MASK 0xFFF
> > +#define FCOE_CQE_RESERVED0_SHIFT 20
> > + __le16 reserved1;
> > + __le16 fw_cq_prod;
> > + union fcoe_cqe_info cqe_info;
> > +};
> > +
> > +
> > +
> > +
> > +
> > +
> These lines intentionally left blank?
It works for the publishing industry. I'll remove the extraneous lines.
>
> [ .. ]
> > +static int qedf_request_msix_irq(struct qedf_ctx *qedf)
> > +{
> > + int i, rc, cpu;
> > +
> > + cpu = cpumask_first(cpu_online_mask);
> > + for (i = 0; i < qedf->num_queues; i++) {
> > + rc = request_irq(qedf->int_info.msix[i].vector,
> > + qedf_msix_handler, 0, "qedf", &qedf->fp_array[i]);
> > +
> > + if (rc) {
> > + QEDF_WARN(&(qedf->dbg_ctx), "request_irq failed.\n");
> > + qedf_sync_free_irqs(qedf);
> > + return rc;
> > + }
> > +
> > + qedf->int_info.used_cnt++;
> > + rc = irq_set_affinity_hint(qedf->int_info.msix[i].vector,
> > + get_cpu_mask(cpu));
> > + cpu = cpumask_next(cpu, cpu_online_mask);
> > + }
> > +
> > + return 0;
> > +}
> > +
> Please use pci_alloc_irq_vectors() here; that avoid you having to do SMP
> affinity setting yourself.
>
> Cheers,
>
> Hannes
>
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH V2 2/2] qedf: Add QLogic FastLinQ offload FCoE driver framework.
2017-01-30 10:34 ` Hannes Reinecke
@ 2017-01-31 18:38 ` Chad Dupuis
2017-01-31 18:38 ` Chad Dupuis
1 sibling, 0 replies; 15+ messages in thread
From: Chad Dupuis @ 2017-01-31 18:38 UTC (permalink / raw)
To: Hannes Reinecke
Cc: martin.petersen, linux-scsi, fcoe-devel, netdev, yuval.mintz,
QLogic-Storage-Upstream
On Mon, 30 Jan 2017, 10:34am -0000, Hannes Reinecke wrote:
> On 01/25/2017 09:33 PM, Dupuis, Chad wrote:
> > +static int qedf_request_msix_irq(struct qedf_ctx *qedf)
> > +{
> > + int i, rc, cpu;
> > +
> > + cpu = cpumask_first(cpu_online_mask);
> > + for (i = 0; i < qedf->num_queues; i++) {
> > + rc = request_irq(qedf->int_info.msix[i].vector,
> > + qedf_msix_handler, 0, "qedf", &qedf->fp_array[i]);
> > +
> > + if (rc) {
> > + QEDF_WARN(&(qedf->dbg_ctx), "request_irq failed.\n");
> > + qedf_sync_free_irqs(qedf);
> > + return rc;
> > + }
> > +
> > + qedf->int_info.used_cnt++;
> > + rc = irq_set_affinity_hint(qedf->int_info.msix[i].vector,
> > + get_cpu_mask(cpu));
> > + cpu = cpumask_next(cpu, cpu_online_mask);
> > + }
> > +
> > + return 0;
> > +}
> > +
> Please use pci_alloc_irq_vectors() here; that avoid you having to do SMP
> affinity setting yourself.
This wil be difficult to coordinate with three other drivers (qedi, qede
and qedr) using the same vector allocation code in the qed module.
>
> Cheers,
>
> Hannes
>
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH V2 2/2] qedf: Add QLogic FastLinQ offload FCoE driver framework.
@ 2017-01-31 18:38 ` Chad Dupuis
0 siblings, 0 replies; 15+ messages in thread
From: Chad Dupuis @ 2017-01-31 18:38 UTC (permalink / raw)
To: Hannes Reinecke
Cc: martin.petersen, linux-scsi, fcoe-devel, netdev, yuval.mintz,
QLogic-Storage-Upstream
On Mon, 30 Jan 2017, 10:34am -0000, Hannes Reinecke wrote:
> On 01/25/2017 09:33 PM, Dupuis, Chad wrote:
> > +static int qedf_request_msix_irq(struct qedf_ctx *qedf)
> > +{
> > + int i, rc, cpu;
> > +
> > + cpu = cpumask_first(cpu_online_mask);
> > + for (i = 0; i < qedf->num_queues; i++) {
> > + rc = request_irq(qedf->int_info.msix[i].vector,
> > + qedf_msix_handler, 0, "qedf", &qedf->fp_array[i]);
> > +
> > + if (rc) {
> > + QEDF_WARN(&(qedf->dbg_ctx), "request_irq failed.\n");
> > + qedf_sync_free_irqs(qedf);
> > + return rc;
> > + }
> > +
> > + qedf->int_info.used_cnt++;
> > + rc = irq_set_affinity_hint(qedf->int_info.msix[i].vector,
> > + get_cpu_mask(cpu));
> > + cpu = cpumask_next(cpu, cpu_online_mask);
> > + }
> > +
> > + return 0;
> > +}
> > +
> Please use pci_alloc_irq_vectors() here; that avoid you having to do SMP
> affinity setting yourself.
This wil be difficult to coordinate with three other drivers (qedi, qede
and qedr) using the same vector allocation code in the qed module.
>
> Cheers,
>
> Hannes
>
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH V2 2/2] qedf: Add QLogic FastLinQ offload FCoE driver framework.
[not found] ` <alpine.OSX.2.00.1701311156290.1169-nVgGmETfwnIFUnR/tdpssI0aTaFgKE92ACYyPGjX6YU@public.gmane.org>
@ 2017-02-01 7:59 ` Hannes Reinecke
0 siblings, 0 replies; 15+ messages in thread
From: Hannes Reinecke @ 2017-02-01 7:59 UTC (permalink / raw)
To: Chad Dupuis
Cc: martin.petersen-QHcLZuEGTsvQT0dZR+AlfA,
linux-scsi-u79uwXL29TY76Z2rM5mHXA, netdev-u79uwXL29TY76Z2rM5mHXA,
yuval.mintz-YGCgFSpz5w/QT0dZR+AlfA,
fcoe-devel-s9riP+hp16TNLxjTenLetw,
QLogic-Storage-Upstream-YGCgFSpz5w/QT0dZR+AlfA
On 01/31/2017 06:08 PM, Chad Dupuis wrote:
>
> On Mon, 30 Jan 2017, 10:34am -0000, Hannes Reinecke wrote:
>
>> On 01/25/2017 09:33 PM, Dupuis, Chad wrote:
>>> From: "Dupuis, Chad" <chad.dupuis-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
>>>
[ .. ]
>>> + if (opcode == ELS_LS_RJT) {
>>> + rjt = fc_frame_payload_get(fp, sizeof(*rjt));
>>> + QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
>>> + "Received LS_RJT for REC: er_reason=0x%x, "
>>> + "er_explan=0x%x.\n", rjt->er_reason, rjt->er_explan);
>>> + /*
>>> + * The following response(s) mean that we need to reissue the
>>> + * request on another exchange. We need to do this without
>>> + * informing the upper layers lest it cause an application
>>> + * error.
>>> + */
>>> + if ((rjt->er_reason == ELS_RJT_LOGIC ||
>>> + rjt->er_reason == ELS_RJT_UNAB) &&
>>> + rjt->er_explan == ELS_EXPL_OXID_RXID) {
>>> + QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
>>> + "Handle CMD LOST case.\n");
>>> + qedf_requeue_io_req(orig_io_req);
>>> + }
>>
>> Care to explain this?
>> I found requeing within the driver without notifying the upper layers
>> deeply troubling.
>> I've came across this (or a similar issue) during implementing
>> FCoE over virtio; there it turned out to be an issue with the target not
>> handling frames in the correct order.
>> So it looks you are attempting to solve the problem of a REC being sent
>> for a command which is not know at the target.
>> Meaning it's either lost in the fabric, hasn't been seen by the target
>> (yet), or having already been processed by the target.
>>
>> The above code would only solve the second problem; however, that would
>> indicate a command ordering issue as the REC would have arrived at the
>> target _before_ the originating command.
>> So doing a resend would only help for _that_ specific case, not for the
>> others.
>> And it's not quite clear why resending with a different OXID would help
>> here; typically it's the _RXID_ which isn't found ...
>
> The problem I've observed is that If I return an error to the SCSI layer
> it propogates up to the st driver and the test application would fail
> since st would fail the I/O. As the comment explains we do this on
> another exchange internally in the driver so as not to cause the tape
> backup application/test to fail.
>
> bnx2fc behaves like this IIRC.
>
Ah, yes.
I've had this discussion with James Smart, too.
When a command abort fails with 'Invalid OXID/RXID' we should be
retrying the command with a different set of IDs, as the original
need to quarantined.
(Which, incidentaily, you don't do, right? You cannot re-use that
particular exchange until you either got a response for it or you reset
the exchange manager. If you don't you run into the risk of getting an
invalid completion if for some reason the command _does_ return
eventually...)
Even though I'd rather like to have it resolved in libfc or even the
SCSI midlayer itself, it's not something which should hold off the
entire submission.
>>
>> [ .. ]
>>> +static void qedf_fcoe_process_vlan_resp(struct qedf_ctx *qedf,
>>> + struct sk_buff *skb)
>>> +{
>>> + struct fip_header *fiph;
>>> + struct fip_desc *desc;
>>> + u16 vid = 0;
>>> + ssize_t rlen;
>>> + size_t dlen;
>>> +
>>> + fiph = (struct fip_header *)(((void *)skb->data) + 2 * ETH_ALEN + 2);
>>> +
>>> + rlen = ntohs(fiph->fip_dl_len) * 4;
>>> + desc = (struct fip_desc *)(fiph + 1);
>>> + while (rlen > 0) {
>>> + dlen = desc->fip_dlen * FIP_BPW;
>>> + switch (desc->fip_dtype) {
>>> + case FIP_DT_VLAN:
>>> + vid = ntohs(((struct fip_vlan_desc *)desc)->fd_vlan);
>>> + break;
>>> + }
>>> + desc = (struct fip_desc *)((char *)desc + dlen);
>>> + rlen -= dlen;
>>> + }
>>> +
>>> + QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "VLAN response, "
>>> + "vid=0x%x.\n", vid);
>>> +
>>> + if (vid > 0 && qedf->vlan_id != vid) {
>>> + qedf_set_vlan_id(qedf, vid);
>>> +
>>> + /* Inform waiter that it's ok to call fcoe_ctlr_link up() */
>>> + complete(&qedf->fipvlan_compl);
>>> + }
>>> +}
>>> +
>> As mentioned, this will fail for HP VirtualConnect, which return a vid
>> of '0', indicating that the FCoE link should run on the interface itself.
>> And this is actually a valid response, I would think that you should be
>> calling complete() for any response ...
>
> In testing I would get responses that would seem to contain VID 0 but then
> subsequent responses contain the valid VID. If I try to go with a VID of
> 0 FIP discovery would fail. It could be possible that there's a bug in
> the code that parses the FIP VLAN response but I'll like to leave this in
> for now and it can be removed once I figure where the issue may be.
>
Okay.
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare-l3A5Bk7waGM@public.gmane.org +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2017-02-01 7:59 UTC | newest]
Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-01-25 20:33 [PATCH V2 0/2] Add QLogic FastLinQ FCoE (qedf) driver Dupuis, Chad
2017-01-25 20:33 ` Dupuis, Chad
2017-01-25 20:33 ` [PATCH V2 net-next 1/2] qed: Add support for hardware offloaded FCoE Dupuis, Chad
2017-01-25 20:33 ` Dupuis, Chad
[not found] ` <1485376423-18737-2-git-send-email-chad.dupuis-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
2017-01-30 9:44 ` Hannes Reinecke
2017-01-30 18:53 ` Arun Easi
2017-01-30 18:53 ` Arun Easi
2017-01-25 20:33 ` [PATCH V2 2/2] qedf: Add QLogic FastLinQ offload FCoE driver framework Dupuis, Chad
2017-01-25 20:33 ` Dupuis, Chad
2017-01-25 21:53 ` kbuild test robot
[not found] ` <1485376423-18737-3-git-send-email-chad.dupuis-YGCgFSpz5w/QT0dZR+AlfA@public.gmane.org>
2017-01-30 10:34 ` Hannes Reinecke
[not found] ` <28df9087-4eaf-d72c-ccee-89408d3a1b32-l3A5Bk7waGM@public.gmane.org>
2017-01-31 17:08 ` Chad Dupuis
[not found] ` <alpine.OSX.2.00.1701311156290.1169-nVgGmETfwnIFUnR/tdpssI0aTaFgKE92ACYyPGjX6YU@public.gmane.org>
2017-02-01 7:59 ` Hannes Reinecke
2017-01-31 18:38 ` Chad Dupuis
2017-01-31 18:38 ` Chad Dupuis
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