* [target-pending 00/12] cxgb4 patch series for cxgbit.ko
@ 2016-03-13 14:19 Varun Prakash
2016-03-13 14:19 ` [target-pending 01/12] cxgb4: add new ULD type CXGB4_ULD_ISCSIT Varun Prakash
` (12 more replies)
0 siblings, 13 replies; 16+ messages in thread
From: Varun Prakash @ 2016-03-13 14:19 UTC (permalink / raw)
To: nab; +Cc: target-devel, netdev, davem, swise, indranil, kxie, hariprasad, varun
Hi Nicholas,
I am posting cxgb4 patch series as
suggested by you in following email thread
http://www.spinics.net/lists/target-devel/msg12437.html
This series consists of patches from
initial cxgb4 series without any change.
Thanks
Varun
Varun Prakash (12):
cxgb4: add new ULD type CXGB4_ULD_ISCSIT
cxgb4: allocate resources for CXGB4_ULD_ISCSIT
cxgb4: large receive offload support
cxgb4, iw_cxgb4: move definitions to common header file
cxgb4, iw_cxgb4, cxgb4i: remove duplicate definitions
cxgb4, cxgb4i: move struct cpl_rx_data_ddp definition
cxgb4: add definitions for iSCSI target ULD
cxgb4: update struct cxgb4_lld_info definition
cxgb4: move VLAN_NONE macro definition
cxgb4, iw_cxgb4: move delayed ack macro definitions
cxgb4: add iSCSI DDP page pod manager
cxgb4: update Kconfig and Makefile
drivers/infiniband/hw/cxgb4/t4fw_ri_api.h | 99 -----
drivers/net/ethernet/chelsio/Kconfig | 11 +
drivers/net/ethernet/chelsio/cxgb4/Makefile | 1 +
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 27 +-
drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 34 +-
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 97 ++++-
drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.c | 464 +++++++++++++++++++++
drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.h | 310 ++++++++++++++
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h | 11 +
drivers/net/ethernet/chelsio/cxgb4/l2t.c | 2 -
drivers/net/ethernet/chelsio/cxgb4/l2t.h | 2 +
drivers/net/ethernet/chelsio/cxgb4/sge.c | 13 +-
drivers/net/ethernet/chelsio/cxgb4/t4_msg.h | 217 ++++++++++
drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h | 7 +
drivers/scsi/cxgbi/cxgb4i/cxgb4i.h | 17 -
15 files changed, 1174 insertions(+), 138 deletions(-)
create mode 100644 drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.c
create mode 100644 drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.h
--
2.0.2
^ permalink raw reply [flat|nested] 16+ messages in thread
* [target-pending 01/12] cxgb4: add new ULD type CXGB4_ULD_ISCSIT
2016-03-13 14:19 [target-pending 00/12] cxgb4 patch series for cxgbit.ko Varun Prakash
@ 2016-03-13 14:19 ` Varun Prakash
2016-03-13 14:19 ` [target-pending 02/12] cxgb4: allocate resources for CXGB4_ULD_ISCSIT Varun Prakash
` (11 subsequent siblings)
12 siblings, 0 replies; 16+ messages in thread
From: Varun Prakash @ 2016-03-13 14:19 UTC (permalink / raw)
To: nab; +Cc: target-devel, netdev, davem, swise, indranil, kxie, hariprasad, varun
Chelsio iSCSI target offload driver
will register with cxgb4 driver as ULD of type
CXGB4_ULD_ISCSIT.
Signed-off-by: Varun Prakash <varun@chelsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
index cf711d5..2f80e32 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
@@ -191,6 +191,7 @@ static inline void set_wr_txq(struct sk_buff *skb, int prio, int queue)
enum cxgb4_uld {
CXGB4_ULD_RDMA,
CXGB4_ULD_ISCSI,
+ CXGB4_ULD_ISCSIT,
CXGB4_ULD_MAX
};
--
2.0.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [target-pending 02/12] cxgb4: allocate resources for CXGB4_ULD_ISCSIT
2016-03-13 14:19 [target-pending 00/12] cxgb4 patch series for cxgbit.ko Varun Prakash
2016-03-13 14:19 ` [target-pending 01/12] cxgb4: add new ULD type CXGB4_ULD_ISCSIT Varun Prakash
@ 2016-03-13 14:19 ` Varun Prakash
2016-03-13 14:19 ` [target-pending 03/12] cxgb4: large receive offload support Varun Prakash
` (10 subsequent siblings)
12 siblings, 0 replies; 16+ messages in thread
From: Varun Prakash @ 2016-03-13 14:19 UTC (permalink / raw)
To: nab; +Cc: target-devel, netdev, davem, swise, indranil, kxie, hariprasad, varun
allocate rxqs for non T4 adapters,
dump rxqs sge qinfo through debugfs.
Signed-off-by: Varun Prakash <varun@chelsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 11 ++++-
drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 34 +++++++++++++-
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 53 ++++++++++++++++++++--
drivers/net/ethernet/chelsio/cxgb4/sge.c | 1 +
4 files changed, 92 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index ec6e849..6206de9 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -404,6 +404,9 @@ enum {
MAX_CTRL_QUEUES = NCHAN, /* # of control Tx queues */
MAX_RDMA_QUEUES = NCHAN, /* # of streaming RDMA Rx queues */
MAX_RDMA_CIQS = 32, /* # of RDMA concentrator IQs */
+
+ /* # of streaming iSCSIT Rx queues */
+ MAX_ISCSIT_QUEUES = MAX_OFLD_QSETS,
};
enum {
@@ -420,8 +423,8 @@ enum {
enum {
INGQ_EXTRAS = 2, /* firmware event queue and */
/* forwarded interrupts */
- MAX_INGQ = MAX_ETH_QSETS + MAX_OFLD_QSETS + MAX_RDMA_QUEUES
- + MAX_RDMA_CIQS + INGQ_EXTRAS,
+ MAX_INGQ = MAX_ETH_QSETS + MAX_OFLD_QSETS + MAX_RDMA_QUEUES +
+ MAX_RDMA_CIQS + MAX_ISCSIT_QUEUES + INGQ_EXTRAS,
};
struct adapter;
@@ -641,6 +644,7 @@ struct sge {
struct sge_eth_rxq ethrxq[MAX_ETH_QSETS];
struct sge_ofld_rxq iscsirxq[MAX_OFLD_QSETS];
+ struct sge_ofld_rxq iscsitrxq[MAX_ISCSIT_QUEUES];
struct sge_ofld_rxq rdmarxq[MAX_RDMA_QUEUES];
struct sge_ofld_rxq rdmaciq[MAX_RDMA_CIQS];
struct sge_rspq fw_evtq ____cacheline_aligned_in_smp;
@@ -652,9 +656,11 @@ struct sge {
u16 ethqsets; /* # of active Ethernet queue sets */
u16 ethtxq_rover; /* Tx queue to clean up next */
u16 iscsiqsets; /* # of active iSCSI queue sets */
+ u16 niscsitq; /* # of available iSCST Rx queues */
u16 rdmaqs; /* # of available RDMA Rx queues */
u16 rdmaciqs; /* # of available RDMA concentrator IQs */
u16 iscsi_rxq[MAX_OFLD_QSETS];
+ u16 iscsit_rxq[MAX_ISCSIT_QUEUES];
u16 rdma_rxq[MAX_RDMA_QUEUES];
u16 rdma_ciq[MAX_RDMA_CIQS];
u16 timer_val[SGE_NTIMERS];
@@ -681,6 +687,7 @@ struct sge {
#define for_each_ethrxq(sge, i) for (i = 0; i < (sge)->ethqsets; i++)
#define for_each_iscsirxq(sge, i) for (i = 0; i < (sge)->iscsiqsets; i++)
+#define for_each_iscsitrxq(sge, i) for (i = 0; i < (sge)->niscsitq; i++)
#define for_each_rdmarxq(sge, i) for (i = 0; i < (sge)->rdmaqs; i++)
#define for_each_rdmaciq(sge, i) for (i = 0; i < (sge)->rdmaciqs; i++)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
index e6a4072..0bb41e9 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@ -2334,12 +2334,14 @@ static int sge_qinfo_show(struct seq_file *seq, void *v)
struct adapter *adap = seq->private;
int eth_entries = DIV_ROUND_UP(adap->sge.ethqsets, 4);
int iscsi_entries = DIV_ROUND_UP(adap->sge.iscsiqsets, 4);
+ int iscsit_entries = DIV_ROUND_UP(adap->sge.niscsitq, 4);
int rdma_entries = DIV_ROUND_UP(adap->sge.rdmaqs, 4);
int ciq_entries = DIV_ROUND_UP(adap->sge.rdmaciqs, 4);
int ctrl_entries = DIV_ROUND_UP(MAX_CTRL_QUEUES, 4);
int i, r = (uintptr_t)v - 1;
int iscsi_idx = r - eth_entries;
- int rdma_idx = iscsi_idx - iscsi_entries;
+ int iscsit_idx = iscsi_idx - iscsi_entries;
+ int rdma_idx = iscsit_idx - iscsit_entries;
int ciq_idx = rdma_idx - rdma_entries;
int ctrl_idx = ciq_idx - ciq_entries;
int fq_idx = ctrl_idx - ctrl_entries;
@@ -2453,6 +2455,35 @@ do { \
RL("FLLow:", fl.low);
RL("FLStarving:", fl.starving);
+ } else if (iscsit_idx < iscsit_entries) {
+ const struct sge_ofld_rxq *rx =
+ &adap->sge.iscsitrxq[iscsit_idx * 4];
+ int n = min(4, adap->sge.niscsitq - 4 * iscsit_idx);
+
+ S("QType:", "iSCSIT");
+ R("RspQ ID:", rspq.abs_id);
+ R("RspQ size:", rspq.size);
+ R("RspQE size:", rspq.iqe_len);
+ R("RspQ CIDX:", rspq.cidx);
+ R("RspQ Gen:", rspq.gen);
+ S3("u", "Intr delay:", qtimer_val(adap, &rx[i].rspq));
+ S3("u", "Intr pktcnt:",
+ adap->sge.counter_val[rx[i].rspq.pktcnt_idx]);
+ R("FL ID:", fl.cntxt_id);
+ R("FL size:", fl.size - 8);
+ R("FL pend:", fl.pend_cred);
+ R("FL avail:", fl.avail);
+ R("FL PIDX:", fl.pidx);
+ R("FL CIDX:", fl.cidx);
+ RL("RxPackets:", stats.pkts);
+ RL("RxImmPkts:", stats.imm);
+ RL("RxNoMem:", stats.nomem);
+ RL("FLAllocErr:", fl.alloc_failed);
+ RL("FLLrgAlcErr:", fl.large_alloc_failed);
+ RL("FLMapErr:", fl.mapping_err);
+ RL("FLLow:", fl.low);
+ RL("FLStarving:", fl.starving);
+
} else if (rdma_idx < rdma_entries) {
const struct sge_ofld_rxq *rx =
&adap->sge.rdmarxq[rdma_idx * 4];
@@ -2543,6 +2574,7 @@ static int sge_queue_entries(const struct adapter *adap)
{
return DIV_ROUND_UP(adap->sge.ethqsets, 4) +
DIV_ROUND_UP(adap->sge.iscsiqsets, 4) +
+ DIV_ROUND_UP(adap->sge.niscsitq, 4) +
DIV_ROUND_UP(adap->sge.rdmaqs, 4) +
DIV_ROUND_UP(adap->sge.rdmaciqs, 4) +
DIV_ROUND_UP(MAX_CTRL_QUEUES, 4) + 1;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index b8a5fb0..d6cfa90 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -227,7 +227,7 @@ static DEFINE_MUTEX(uld_mutex);
static LIST_HEAD(adap_rcu_list);
static DEFINE_SPINLOCK(adap_rcu_lock);
static struct cxgb4_uld_info ulds[CXGB4_ULD_MAX];
-static const char *uld_str[] = { "RDMA", "iSCSI" };
+static const char *const uld_str[] = { "RDMA", "iSCSI", "iSCSIT" };
static void link_report(struct net_device *dev)
{
@@ -730,6 +730,10 @@ static void name_msix_vecs(struct adapter *adap)
snprintf(adap->msix_info[msi_idx++].desc, n, "%s-iscsi%d",
adap->port[0]->name, i);
+ for_each_iscsitrxq(&adap->sge, i)
+ snprintf(adap->msix_info[msi_idx++].desc, n, "%s-iSCSIT%d",
+ adap->port[0]->name, i);
+
for_each_rdmarxq(&adap->sge, i)
snprintf(adap->msix_info[msi_idx++].desc, n, "%s-rdma%d",
adap->port[0]->name, i);
@@ -743,6 +747,7 @@ static int request_msix_queue_irqs(struct adapter *adap)
{
struct sge *s = &adap->sge;
int err, ethqidx, iscsiqidx = 0, rdmaqidx = 0, rdmaciqqidx = 0;
+ int iscsitqidx = 0;
int msi_index = 2;
err = request_irq(adap->msix_info[1].vec, t4_sge_intr_msix, 0,
@@ -768,6 +773,15 @@ static int request_msix_queue_irqs(struct adapter *adap)
goto unwind;
msi_index++;
}
+ for_each_iscsitrxq(s, iscsitqidx) {
+ err = request_irq(adap->msix_info[msi_index].vec,
+ t4_sge_intr_msix, 0,
+ adap->msix_info[msi_index].desc,
+ &s->iscsitrxq[iscsitqidx].rspq);
+ if (err)
+ goto unwind;
+ msi_index++;
+ }
for_each_rdmarxq(s, rdmaqidx) {
err = request_irq(adap->msix_info[msi_index].vec,
t4_sge_intr_msix, 0,
@@ -795,6 +809,9 @@ unwind:
while (--rdmaqidx >= 0)
free_irq(adap->msix_info[--msi_index].vec,
&s->rdmarxq[rdmaqidx].rspq);
+ while (--iscsitqidx >= 0)
+ free_irq(adap->msix_info[--msi_index].vec,
+ &s->iscsitrxq[iscsitqidx].rspq);
while (--iscsiqidx >= 0)
free_irq(adap->msix_info[--msi_index].vec,
&s->iscsirxq[iscsiqidx].rspq);
@@ -816,6 +833,9 @@ static void free_msix_queue_irqs(struct adapter *adap)
for_each_iscsirxq(s, i)
free_irq(adap->msix_info[msi_index++].vec,
&s->iscsirxq[i].rspq);
+ for_each_iscsitrxq(s, i)
+ free_irq(adap->msix_info[msi_index++].vec,
+ &s->iscsitrxq[i].rspq);
for_each_rdmarxq(s, i)
free_irq(adap->msix_info[msi_index++].vec, &s->rdmarxq[i].rspq);
for_each_rdmaciq(s, i)
@@ -1072,6 +1092,7 @@ freeout: t4_free_sge_resources(adap);
} while (0)
ALLOC_OFLD_RXQS(s->iscsirxq, s->iscsiqsets, j, s->iscsi_rxq);
+ ALLOC_OFLD_RXQS(s->iscsitrxq, s->niscsitq, j, s->iscsit_rxq);
ALLOC_OFLD_RXQS(s->rdmarxq, s->rdmaqs, 1, s->rdma_rxq);
j = s->rdmaciqs / adap->params.nports; /* rdmaq queues per channel */
ALLOC_OFLD_RXQS(s->rdmaciq, s->rdmaciqs, j, s->rdma_ciq);
@@ -2406,6 +2427,9 @@ static void uld_attach(struct adapter *adap, unsigned int uld)
} else if (uld == CXGB4_ULD_ISCSI) {
lli.rxq_ids = adap->sge.iscsi_rxq;
lli.nrxq = adap->sge.iscsiqsets;
+ } else if (uld == CXGB4_ULD_ISCSIT) {
+ lli.rxq_ids = adap->sge.iscsit_rxq;
+ lli.nrxq = adap->sge.niscsitq;
}
lli.ntxq = adap->sge.iscsiqsets;
lli.nchan = adap->params.nports;
@@ -4310,6 +4334,9 @@ static void cfg_queues(struct adapter *adap)
s->rdmaciqs = (s->rdmaciqs / adap->params.nports) *
adap->params.nports;
s->rdmaciqs = max_t(int, s->rdmaciqs, adap->params.nports);
+
+ if (!is_t4(adap->params.chip))
+ s->niscsitq = s->iscsiqsets;
}
for (i = 0; i < ARRAY_SIZE(s->ethrxq); i++) {
@@ -4336,6 +4363,16 @@ static void cfg_queues(struct adapter *adap)
r->fl.size = 72;
}
+ if (!is_t4(adap->params.chip)) {
+ for (i = 0; i < ARRAY_SIZE(s->iscsitrxq); i++) {
+ struct sge_ofld_rxq *r = &s->iscsitrxq[i];
+
+ init_rspq(adap, &r->rspq, 5, 1, 1024, 64);
+ r->rspq.uld = CXGB4_ULD_ISCSIT;
+ r->fl.size = 72;
+ }
+ }
+
for (i = 0; i < ARRAY_SIZE(s->rdmarxq); i++) {
struct sge_ofld_rxq *r = &s->rdmarxq[i];
@@ -4410,9 +4447,13 @@ static int enable_msix(struct adapter *adap)
want = s->max_ethqsets + EXTRA_VECS;
if (is_offload(adap)) {
- want += s->rdmaqs + s->rdmaciqs + s->iscsiqsets;
+ want += s->rdmaqs + s->rdmaciqs + s->iscsiqsets +
+ s->niscsitq;
/* need nchan for each possible ULD */
- ofld_need = 3 * nchan;
+ if (is_t4(adap->params.chip))
+ ofld_need = 3 * nchan;
+ else
+ ofld_need = 4 * nchan;
}
#ifdef CONFIG_CHELSIO_T4_DCB
/* For Data Center Bridging we need 8 Ethernet TX Priority Queues for
@@ -4444,12 +4485,16 @@ static int enable_msix(struct adapter *adap)
if (allocated < want) {
s->rdmaqs = nchan;
s->rdmaciqs = nchan;
+
+ if (!is_t4(adap->params.chip))
+ s->niscsitq = nchan;
}
/* leftovers go to OFLD */
i = allocated - EXTRA_VECS - s->max_ethqsets -
- s->rdmaqs - s->rdmaciqs;
+ s->rdmaqs - s->rdmaciqs - s->niscsitq;
s->iscsiqsets = (i / nchan) * nchan; /* round down */
+
}
for (i = 0; i < allocated; ++i)
adap->msix_info[i].vec = entries[i].vector;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c
index b4eb468..b3a31af 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c
@@ -2982,6 +2982,7 @@ void t4_free_sge_resources(struct adapter *adap)
/* clean up RDMA and iSCSI Rx queues */
t4_free_ofld_rxqs(adap, adap->sge.iscsiqsets, adap->sge.iscsirxq);
+ t4_free_ofld_rxqs(adap, adap->sge.niscsitq, adap->sge.iscsitrxq);
t4_free_ofld_rxqs(adap, adap->sge.rdmaqs, adap->sge.rdmarxq);
t4_free_ofld_rxqs(adap, adap->sge.rdmaciqs, adap->sge.rdmaciq);
--
2.0.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [target-pending 03/12] cxgb4: large receive offload support
2016-03-13 14:19 [target-pending 00/12] cxgb4 patch series for cxgbit.ko Varun Prakash
2016-03-13 14:19 ` [target-pending 01/12] cxgb4: add new ULD type CXGB4_ULD_ISCSIT Varun Prakash
2016-03-13 14:19 ` [target-pending 02/12] cxgb4: allocate resources for CXGB4_ULD_ISCSIT Varun Prakash
@ 2016-03-13 14:19 ` Varun Prakash
2016-03-13 14:19 ` [target-pending 04/12] cxgb4, iw_cxgb4: move definitions to common header file Varun Prakash
` (9 subsequent siblings)
12 siblings, 0 replies; 16+ messages in thread
From: Varun Prakash @ 2016-03-13 14:19 UTC (permalink / raw)
To: nab; +Cc: target-devel, netdev, davem, swise, indranil, kxie, hariprasad, varun
add large receive offload(LRO) support
for upper layer drivers.
Signed-off-by: Varun Prakash <varun@chelsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 14 ++++++++-
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 42 ++++++++++++++++++-------
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h | 6 ++++
drivers/net/ethernet/chelsio/cxgb4/sge.c | 12 +++++--
4 files changed, 60 insertions(+), 14 deletions(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 6206de9..92086a0 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -511,6 +511,15 @@ struct pkt_gl {
typedef int (*rspq_handler_t)(struct sge_rspq *q, const __be64 *rsp,
const struct pkt_gl *gl);
+typedef void (*rspq_flush_handler_t)(struct sge_rspq *q);
+/* LRO related declarations for ULD */
+struct t4_lro_mgr {
+#define MAX_LRO_SESSIONS 64
+ u8 lro_session_cnt; /* # of sessions to aggregate */
+ unsigned long lro_pkts; /* # of LRO super packets */
+ unsigned long lro_merged; /* # of wire packets merged by LRO */
+ struct sk_buff_head lroq; /* list of aggregated sessions */
+};
struct sge_rspq { /* state for an SGE response queue */
struct napi_struct napi;
@@ -535,6 +544,8 @@ struct sge_rspq { /* state for an SGE response queue */
struct adapter *adap;
struct net_device *netdev; /* associated net device */
rspq_handler_t handler;
+ rspq_flush_handler_t flush_handler;
+ struct t4_lro_mgr lro_mgr;
#ifdef CONFIG_NET_RX_BUSY_POLL
#define CXGB_POLL_STATE_IDLE 0
#define CXGB_POLL_STATE_NAPI BIT(0) /* NAPI owns this poll */
@@ -1114,7 +1125,8 @@ int t4_mgmt_tx(struct adapter *adap, struct sk_buff *skb);
int t4_ofld_send(struct adapter *adap, struct sk_buff *skb);
int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq,
struct net_device *dev, int intr_idx,
- struct sge_fl *fl, rspq_handler_t hnd, int cong);
+ struct sge_fl *fl, rspq_handler_t hnd,
+ rspq_flush_handler_t flush_handler, int cong);
int t4_sge_alloc_eth_txq(struct adapter *adap, struct sge_eth_txq *txq,
struct net_device *dev, struct netdev_queue *netdevq,
unsigned int iqid);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index d6cfa90..050f215 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -640,6 +640,13 @@ out:
return 0;
}
+/* Flush the aggregated lro sessions */
+static void uldrx_flush_handler(struct sge_rspq *q)
+{
+ if (ulds[q->uld].lro_flush)
+ ulds[q->uld].lro_flush(&q->lro_mgr);
+}
+
/**
* uldrx_handler - response queue handler for ULD queues
* @q: the response queue that received the packet
@@ -653,6 +660,7 @@ static int uldrx_handler(struct sge_rspq *q, const __be64 *rsp,
const struct pkt_gl *gl)
{
struct sge_ofld_rxq *rxq = container_of(q, struct sge_ofld_rxq, rspq);
+ int ret;
/* FW can send CPLs encapsulated in a CPL_FW4_MSG.
*/
@@ -660,10 +668,19 @@ static int uldrx_handler(struct sge_rspq *q, const __be64 *rsp,
((const struct cpl_fw4_msg *)(rsp + 1))->type == FW_TYPE_RSSCPL)
rsp += 2;
- if (ulds[q->uld].rx_handler(q->adap->uld_handle[q->uld], rsp, gl)) {
+ if (q->flush_handler)
+ ret = ulds[q->uld].lro_rx_handler(q->adap->uld_handle[q->uld],
+ rsp, gl, &q->lro_mgr,
+ &q->napi);
+ else
+ ret = ulds[q->uld].rx_handler(q->adap->uld_handle[q->uld],
+ rsp, gl);
+
+ if (ret) {
rxq->stats.nomem++;
return -1;
}
+
if (gl == NULL)
rxq->stats.imm++;
else if (gl == CXGB4_MSG_AN)
@@ -980,7 +997,7 @@ static void enable_rx(struct adapter *adap)
static int alloc_ofld_rxqs(struct adapter *adap, struct sge_ofld_rxq *q,
unsigned int nq, unsigned int per_chan, int msi_idx,
- u16 *ids)
+ u16 *ids, bool lro)
{
int i, err;
@@ -990,7 +1007,9 @@ static int alloc_ofld_rxqs(struct adapter *adap, struct sge_ofld_rxq *q,
err = t4_sge_alloc_rxq(adap, &q->rspq, false,
adap->port[i / per_chan],
msi_idx, q->fl.size ? &q->fl : NULL,
- uldrx_handler, 0);
+ uldrx_handler,
+ lro ? uldrx_flush_handler : NULL,
+ 0);
if (err)
return err;
memset(&q->stats, 0, sizeof(q->stats));
@@ -1020,7 +1039,7 @@ static int setup_sge_queues(struct adapter *adap)
msi_idx = 1; /* vector 0 is for non-queue interrupts */
else {
err = t4_sge_alloc_rxq(adap, &s->intrq, false, adap->port[0], 0,
- NULL, NULL, -1);
+ NULL, NULL, NULL, -1);
if (err)
return err;
msi_idx = -((int)s->intrq.abs_id + 1);
@@ -1040,7 +1059,7 @@ static int setup_sge_queues(struct adapter *adap)
* new/deleted queues.
*/
err = t4_sge_alloc_rxq(adap, &s->fw_evtq, true, adap->port[0],
- msi_idx, NULL, fwevtq_handler, -1);
+ msi_idx, NULL, fwevtq_handler, NULL, -1);
if (err) {
freeout: t4_free_sge_resources(adap);
return err;
@@ -1058,6 +1077,7 @@ freeout: t4_free_sge_resources(adap);
err = t4_sge_alloc_rxq(adap, &q->rspq, false, dev,
msi_idx, &q->fl,
t4_ethrx_handler,
+ NULL,
t4_get_mps_bg_map(adap,
pi->tx_chan));
if (err)
@@ -1083,19 +1103,19 @@ freeout: t4_free_sge_resources(adap);
goto freeout;
}
-#define ALLOC_OFLD_RXQS(firstq, nq, per_chan, ids) do { \
- err = alloc_ofld_rxqs(adap, firstq, nq, per_chan, msi_idx, ids); \
+#define ALLOC_OFLD_RXQS(firstq, nq, per_chan, ids, lro) do { \
+ err = alloc_ofld_rxqs(adap, firstq, nq, per_chan, msi_idx, ids, lro); \
if (err) \
goto freeout; \
if (msi_idx > 0) \
msi_idx += nq; \
} while (0)
- ALLOC_OFLD_RXQS(s->iscsirxq, s->iscsiqsets, j, s->iscsi_rxq);
- ALLOC_OFLD_RXQS(s->iscsitrxq, s->niscsitq, j, s->iscsit_rxq);
- ALLOC_OFLD_RXQS(s->rdmarxq, s->rdmaqs, 1, s->rdma_rxq);
+ ALLOC_OFLD_RXQS(s->iscsirxq, s->iscsiqsets, j, s->iscsi_rxq, false);
+ ALLOC_OFLD_RXQS(s->iscsitrxq, s->niscsitq, j, s->iscsit_rxq, true);
+ ALLOC_OFLD_RXQS(s->rdmarxq, s->rdmaqs, 1, s->rdma_rxq, false);
j = s->rdmaciqs / adap->params.nports; /* rdmaq queues per channel */
- ALLOC_OFLD_RXQS(s->rdmaciq, s->rdmaciqs, j, s->rdma_ciq);
+ ALLOC_OFLD_RXQS(s->rdmaciq, s->rdmaciqs, j, s->rdma_ciq, false);
#undef ALLOC_OFLD_RXQS
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
index 2f80e32..d97a81f 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
@@ -213,6 +213,7 @@ struct l2t_data;
struct net_device;
struct pkt_gl;
struct tp_tcp_stats;
+struct t4_lro_mgr;
struct cxgb4_range {
unsigned int start;
@@ -284,6 +285,11 @@ struct cxgb4_uld_info {
const struct pkt_gl *gl);
int (*state_change)(void *handle, enum cxgb4_state new_state);
int (*control)(void *handle, enum cxgb4_control control, ...);
+ int (*lro_rx_handler)(void *handle, const __be64 *rsp,
+ const struct pkt_gl *gl,
+ struct t4_lro_mgr *lro_mgr,
+ struct napi_struct *napi);
+ void (*lro_flush)(struct t4_lro_mgr *);
};
int cxgb4_register_uld(enum cxgb4_uld type, const struct cxgb4_uld_info *p);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c
index b3a31af..3ba4b0c 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c
@@ -2157,8 +2157,11 @@ static int process_responses(struct sge_rspq *q, int budget)
while (likely(budget_left)) {
rc = (void *)q->cur_desc + (q->iqe_len - sizeof(*rc));
- if (!is_new_response(rc, q))
+ if (!is_new_response(rc, q)) {
+ if (q->flush_handler)
+ q->flush_handler(q);
break;
+ }
dma_rmb();
rsp_type = RSPD_TYPE_G(rc->type_gen);
@@ -2544,7 +2547,8 @@ static void __iomem *bar2_address(struct adapter *adapter,
*/
int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq,
struct net_device *dev, int intr_idx,
- struct sge_fl *fl, rspq_handler_t hnd, int cong)
+ struct sge_fl *fl, rspq_handler_t hnd,
+ rspq_flush_handler_t flush_hnd, int cong)
{
int ret, flsz = 0;
struct fw_iq_cmd c;
@@ -2638,6 +2642,10 @@ int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq,
iq->size--; /* subtract status entry */
iq->netdev = dev;
iq->handler = hnd;
+ iq->flush_handler = flush_hnd;
+
+ memset(&iq->lro_mgr, 0, sizeof(struct t4_lro_mgr));
+ skb_queue_head_init(&iq->lro_mgr.lroq);
/* set offset to -1 to distinguish ingress queues without FL */
iq->offset = fl ? 0 : -1;
--
2.0.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [target-pending 04/12] cxgb4, iw_cxgb4: move definitions to common header file
2016-03-13 14:19 [target-pending 00/12] cxgb4 patch series for cxgbit.ko Varun Prakash
` (2 preceding siblings ...)
2016-03-13 14:19 ` [target-pending 03/12] cxgb4: large receive offload support Varun Prakash
@ 2016-03-13 14:19 ` Varun Prakash
2016-03-13 14:19 ` [target-pending 05/12] cxgb4, iw_cxgb4, cxgb4i: remove duplicate definitions Varun Prakash
` (8 subsequent siblings)
12 siblings, 0 replies; 16+ messages in thread
From: Varun Prakash @ 2016-03-13 14:19 UTC (permalink / raw)
To: nab; +Cc: target-devel, netdev, davem, swise, indranil, kxie, hariprasad, varun
move struct tcp_options, struct cpl_pass_accept_req,
enum defining congestion control algorithms
and associated macros to common header file t4_msg.h
Signed-off-by: Varun Prakash <varun@chelsio.com>
---
drivers/infiniband/hw/cxgb4/t4fw_ri_api.h | 81 -----------------------------
drivers/net/ethernet/chelsio/cxgb4/t4_msg.h | 81 +++++++++++++++++++++++++++++
2 files changed, 81 insertions(+), 81 deletions(-)
diff --git a/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h b/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h
index 343e8daf..5b66da3 100644
--- a/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h
+++ b/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h
@@ -753,71 +753,6 @@ struct fw_ri_wr {
#define FW_RI_WR_P2PTYPE_G(x) \
(((x) >> FW_RI_WR_P2PTYPE_S) & FW_RI_WR_P2PTYPE_M)
-struct tcp_options {
- __be16 mss;
- __u8 wsf;
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- __u8:4;
- __u8 unknown:1;
- __u8:1;
- __u8 sack:1;
- __u8 tstamp:1;
-#else
- __u8 tstamp:1;
- __u8 sack:1;
- __u8:1;
- __u8 unknown:1;
- __u8:4;
-#endif
-};
-
-struct cpl_pass_accept_req {
- union opcode_tid ot;
- __be16 rsvd;
- __be16 len;
- __be32 hdr_len;
- __be16 vlan;
- __be16 l2info;
- __be32 tos_stid;
- struct tcp_options tcpopt;
-};
-
-/* cpl_pass_accept_req.hdr_len fields */
-#define SYN_RX_CHAN_S 0
-#define SYN_RX_CHAN_M 0xF
-#define SYN_RX_CHAN_V(x) ((x) << SYN_RX_CHAN_S)
-#define SYN_RX_CHAN_G(x) (((x) >> SYN_RX_CHAN_S) & SYN_RX_CHAN_M)
-
-#define TCP_HDR_LEN_S 10
-#define TCP_HDR_LEN_M 0x3F
-#define TCP_HDR_LEN_V(x) ((x) << TCP_HDR_LEN_S)
-#define TCP_HDR_LEN_G(x) (((x) >> TCP_HDR_LEN_S) & TCP_HDR_LEN_M)
-
-#define IP_HDR_LEN_S 16
-#define IP_HDR_LEN_M 0x3FF
-#define IP_HDR_LEN_V(x) ((x) << IP_HDR_LEN_S)
-#define IP_HDR_LEN_G(x) (((x) >> IP_HDR_LEN_S) & IP_HDR_LEN_M)
-
-#define ETH_HDR_LEN_S 26
-#define ETH_HDR_LEN_M 0x1F
-#define ETH_HDR_LEN_V(x) ((x) << ETH_HDR_LEN_S)
-#define ETH_HDR_LEN_G(x) (((x) >> ETH_HDR_LEN_S) & ETH_HDR_LEN_M)
-
-/* cpl_pass_accept_req.l2info fields */
-#define SYN_MAC_IDX_S 0
-#define SYN_MAC_IDX_M 0x1FF
-#define SYN_MAC_IDX_V(x) ((x) << SYN_MAC_IDX_S)
-#define SYN_MAC_IDX_G(x) (((x) >> SYN_MAC_IDX_S) & SYN_MAC_IDX_M)
-
-#define SYN_XACT_MATCH_S 9
-#define SYN_XACT_MATCH_V(x) ((x) << SYN_XACT_MATCH_S)
-#define SYN_XACT_MATCH_F SYN_XACT_MATCH_V(1U)
-
-#define SYN_INTF_S 12
-#define SYN_INTF_M 0xF
-#define SYN_INTF_V(x) ((x) << SYN_INTF_S)
-#define SYN_INTF_G(x) (((x) >> SYN_INTF_S) & SYN_INTF_M)
-
struct ulptx_idata {
__be32 cmd_more;
__be32 len;
@@ -836,20 +771,4 @@ struct ulptx_idata {
#define RX_DACK_CHANGE_V(x) ((x) << RX_DACK_CHANGE_S)
#define RX_DACK_CHANGE_F RX_DACK_CHANGE_V(1U)
-enum { /* TCP congestion control algorithms */
- CONG_ALG_RENO,
- CONG_ALG_TAHOE,
- CONG_ALG_NEWRENO,
- CONG_ALG_HIGHSPEED
-};
-
-#define CONG_CNTRL_S 14
-#define CONG_CNTRL_M 0x3
-#define CONG_CNTRL_V(x) ((x) << CONG_CNTRL_S)
-#define CONG_CNTRL_G(x) (((x) >> CONG_CNTRL_S) & CONG_CNTRL_M)
-
-#define T5_ISS_S 18
-#define T5_ISS_V(x) ((x) << T5_ISS_S)
-#define T5_ISS_F T5_ISS_V(1U)
-
#endif /* _T4FW_RI_API_H_ */
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
index a072d34..5753bd4 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
@@ -344,6 +344,87 @@ struct cpl_pass_open_rpl {
u8 status;
};
+struct tcp_options {
+ __be16 mss;
+ __u8 wsf;
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+ __u8:4;
+ __u8 unknown:1;
+ __u8:1;
+ __u8 sack:1;
+ __u8 tstamp:1;
+#else
+ __u8 tstamp:1;
+ __u8 sack:1;
+ __u8:1;
+ __u8 unknown:1;
+ __u8:4;
+#endif
+};
+
+struct cpl_pass_accept_req {
+ union opcode_tid ot;
+ __be16 rsvd;
+ __be16 len;
+ __be32 hdr_len;
+ __be16 vlan;
+ __be16 l2info;
+ __be32 tos_stid;
+ struct tcp_options tcpopt;
+};
+
+/* cpl_pass_accept_req.hdr_len fields */
+#define SYN_RX_CHAN_S 0
+#define SYN_RX_CHAN_M 0xF
+#define SYN_RX_CHAN_V(x) ((x) << SYN_RX_CHAN_S)
+#define SYN_RX_CHAN_G(x) (((x) >> SYN_RX_CHAN_S) & SYN_RX_CHAN_M)
+
+#define TCP_HDR_LEN_S 10
+#define TCP_HDR_LEN_M 0x3F
+#define TCP_HDR_LEN_V(x) ((x) << TCP_HDR_LEN_S)
+#define TCP_HDR_LEN_G(x) (((x) >> TCP_HDR_LEN_S) & TCP_HDR_LEN_M)
+
+#define IP_HDR_LEN_S 16
+#define IP_HDR_LEN_M 0x3FF
+#define IP_HDR_LEN_V(x) ((x) << IP_HDR_LEN_S)
+#define IP_HDR_LEN_G(x) (((x) >> IP_HDR_LEN_S) & IP_HDR_LEN_M)
+
+#define ETH_HDR_LEN_S 26
+#define ETH_HDR_LEN_M 0x1F
+#define ETH_HDR_LEN_V(x) ((x) << ETH_HDR_LEN_S)
+#define ETH_HDR_LEN_G(x) (((x) >> ETH_HDR_LEN_S) & ETH_HDR_LEN_M)
+
+/* cpl_pass_accept_req.l2info fields */
+#define SYN_MAC_IDX_S 0
+#define SYN_MAC_IDX_M 0x1FF
+#define SYN_MAC_IDX_V(x) ((x) << SYN_MAC_IDX_S)
+#define SYN_MAC_IDX_G(x) (((x) >> SYN_MAC_IDX_S) & SYN_MAC_IDX_M)
+
+#define SYN_XACT_MATCH_S 9
+#define SYN_XACT_MATCH_V(x) ((x) << SYN_XACT_MATCH_S)
+#define SYN_XACT_MATCH_F SYN_XACT_MATCH_V(1U)
+
+#define SYN_INTF_S 12
+#define SYN_INTF_M 0xF
+#define SYN_INTF_V(x) ((x) << SYN_INTF_S)
+#define SYN_INTF_G(x) (((x) >> SYN_INTF_S) & SYN_INTF_M)
+
+enum { /* TCP congestion control algorithms */
+ CONG_ALG_RENO,
+ CONG_ALG_TAHOE,
+ CONG_ALG_NEWRENO,
+ CONG_ALG_HIGHSPEED
+};
+
+#define CONG_CNTRL_S 14
+#define CONG_CNTRL_M 0x3
+#define CONG_CNTRL_V(x) ((x) << CONG_CNTRL_S)
+#define CONG_CNTRL_G(x) (((x) >> CONG_CNTRL_S) & CONG_CNTRL_M)
+
+#define T5_ISS_S 18
+#define T5_ISS_V(x) ((x) << T5_ISS_S)
+#define T5_ISS_F T5_ISS_V(1U)
+
struct cpl_pass_accept_rpl {
WR_HDR;
union opcode_tid ot;
--
2.0.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [target-pending 05/12] cxgb4, iw_cxgb4, cxgb4i: remove duplicate definitions
2016-03-13 14:19 [target-pending 00/12] cxgb4 patch series for cxgbit.ko Varun Prakash
` (3 preceding siblings ...)
2016-03-13 14:19 ` [target-pending 04/12] cxgb4, iw_cxgb4: move definitions to common header file Varun Prakash
@ 2016-03-13 14:19 ` Varun Prakash
2016-03-13 14:19 ` [target-pending 06/12] cxgb4, cxgb4i: move struct cpl_rx_data_ddp definition Varun Prakash
` (7 subsequent siblings)
12 siblings, 0 replies; 16+ messages in thread
From: Varun Prakash @ 2016-03-13 14:19 UTC (permalink / raw)
To: nab; +Cc: target-devel, netdev, davem, swise, indranil, kxie, hariprasad, varun
move struct ulptx_idata definition to
common header file t4_msg.h.
Signed-off-by: Varun Prakash <varun@chelsio.com>
---
drivers/infiniband/hw/cxgb4/t4fw_ri_api.h | 9 ---------
drivers/net/ethernet/chelsio/cxgb4/t4_msg.h | 5 +++++
drivers/scsi/cxgbi/cxgb4i/cxgb4i.h | 5 -----
3 files changed, 5 insertions(+), 14 deletions(-)
diff --git a/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h b/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h
index 5b66da3..5f47e03 100644
--- a/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h
+++ b/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h
@@ -753,15 +753,6 @@ struct fw_ri_wr {
#define FW_RI_WR_P2PTYPE_G(x) \
(((x) >> FW_RI_WR_P2PTYPE_S) & FW_RI_WR_P2PTYPE_M)
-struct ulptx_idata {
- __be32 cmd_more;
- __be32 len;
-};
-
-#define ULPTX_NSGE_S 0
-#define ULPTX_NSGE_M 0xFFFF
-#define ULPTX_NSGE_V(x) ((x) << ULPTX_NSGE_S)
-
#define RX_DACK_MODE_S 29
#define RX_DACK_MODE_M 0x3
#define RX_DACK_MODE_V(x) ((x) << RX_DACK_MODE_S)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
index 5753bd4..8cfc6a8 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
@@ -1222,6 +1222,11 @@ struct ulptx_sgl {
struct ulptx_sge_pair sge[0];
};
+struct ulptx_idata {
+ __be32 cmd_more;
+ __be32 len;
+};
+
#define ULPTX_NSGE_S 0
#define ULPTX_NSGE_V(x) ((x) << ULPTX_NSGE_S)
diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.h b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.h
index 22dd8d6..e5f8f65 100644
--- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.h
+++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.h
@@ -25,11 +25,6 @@
#define T5_ISS_VALID (1 << 18)
-struct ulptx_idata {
- __be32 cmd_more;
- __be32 len;
-};
-
struct cpl_rx_data_ddp {
union opcode_tid ot;
__be16 urg;
--
2.0.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [target-pending 06/12] cxgb4, cxgb4i: move struct cpl_rx_data_ddp definition
2016-03-13 14:19 [target-pending 00/12] cxgb4 patch series for cxgbit.ko Varun Prakash
` (4 preceding siblings ...)
2016-03-13 14:19 ` [target-pending 05/12] cxgb4, iw_cxgb4, cxgb4i: remove duplicate definitions Varun Prakash
@ 2016-03-13 14:19 ` Varun Prakash
2016-03-13 14:19 ` [target-pending 07/12] cxgb4: add definitions for iSCSI target ULD Varun Prakash
` (6 subsequent siblings)
12 siblings, 0 replies; 16+ messages in thread
From: Varun Prakash @ 2016-03-13 14:19 UTC (permalink / raw)
To: nab; +Cc: target-devel, netdev, davem, swise, indranil, kxie, hariprasad, varun
move struct cpl_rx_data_ddp definition to
common header file t4_msg.h.
Signed-off-by: Varun Prakash <varun@chelsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/t4_msg.h | 15 +++++++++++++++
drivers/scsi/cxgbi/cxgb4i/cxgb4i.h | 12 ------------
2 files changed, 15 insertions(+), 12 deletions(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
index 8cfc6a8..7279245 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
@@ -899,6 +899,21 @@ struct cpl_iscsi_hdr {
#define ISCSI_DDP_V(x) ((x) << ISCSI_DDP_S)
#define ISCSI_DDP_F ISCSI_DDP_V(1U)
+struct cpl_rx_data_ddp {
+ union opcode_tid ot;
+ __be16 urg;
+ __be16 len;
+ __be32 seq;
+ union {
+ __be32 nxt_seq;
+ __be32 ddp_report;
+ };
+ __be32 ulp_crc;
+ __be32 ddpvld;
+};
+
+#define cpl_rx_iscsi_ddp cpl_rx_data_ddp
+
struct cpl_rx_data {
union opcode_tid ot;
__be16 rsvd;
diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.h b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.h
index e5f8f65..2fd9c76 100644
--- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.h
+++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.h
@@ -25,16 +25,4 @@
#define T5_ISS_VALID (1 << 18)
-struct cpl_rx_data_ddp {
- union opcode_tid ot;
- __be16 urg;
- __be16 len;
- __be32 seq;
- union {
- __be32 nxt_seq;
- __be32 ddp_report;
- };
- __be32 ulp_crc;
- __be32 ddpvld;
-};
#endif /* __CXGB4I_H__ */
--
2.0.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [target-pending 07/12] cxgb4: add definitions for iSCSI target ULD
2016-03-13 14:19 [target-pending 00/12] cxgb4 patch series for cxgbit.ko Varun Prakash
` (5 preceding siblings ...)
2016-03-13 14:19 ` [target-pending 06/12] cxgb4, cxgb4i: move struct cpl_rx_data_ddp definition Varun Prakash
@ 2016-03-13 14:19 ` Varun Prakash
2016-03-13 14:19 ` [target-pending 08/12] cxgb4: update struct cxgb4_lld_info definition Varun Prakash
` (5 subsequent siblings)
12 siblings, 0 replies; 16+ messages in thread
From: Varun Prakash @ 2016-03-13 14:19 UTC (permalink / raw)
To: nab; +Cc: target-devel, netdev, davem, swise, indranil, kxie, hariprasad, varun
add structure, macro and constant definitions
for iSCSI Tx and Rx.
Signed-off-by: Varun Prakash <varun@chelsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/t4_msg.h | 107 ++++++++++++++++++++++++++
drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h | 7 ++
2 files changed, 114 insertions(+)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
index 7279245..03da7a7 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
@@ -51,6 +51,7 @@ enum {
CPL_TX_PKT = 0xE,
CPL_L2T_WRITE_REQ = 0x12,
CPL_TID_RELEASE = 0x1A,
+ CPL_TX_DATA_ISO = 0x1F,
CPL_CLOSE_LISTSRV_RPL = 0x20,
CPL_L2T_WRITE_RPL = 0x23,
@@ -914,6 +915,95 @@ struct cpl_rx_data_ddp {
#define cpl_rx_iscsi_ddp cpl_rx_data_ddp
+struct cpl_iscsi_data {
+ union opcode_tid ot;
+ __u8 rsvd0[2];
+ __be16 len;
+ __be32 seq;
+ __be16 urg;
+ __u8 rsvd1;
+ __u8 status;
+};
+
+struct cpl_tx_data_iso {
+ __be32 op_to_scsi;
+ __u8 reserved1;
+ __u8 ahs_len;
+ __be16 mpdu;
+ __be32 burst_size;
+ __be32 len;
+ __be32 reserved2_seglen_offset;
+ __be32 datasn_offset;
+ __be32 buffer_offset;
+ __be32 reserved3;
+
+ /* encapsulated CPL_TX_DATA follows here */
+};
+
+/* cpl_tx_data_iso.op_to_scsi fields */
+#define CPL_TX_DATA_ISO_OP_S 24
+#define CPL_TX_DATA_ISO_OP_M 0xff
+#define CPL_TX_DATA_ISO_OP_V(x) ((x) << CPL_TX_DATA_ISO_OP_S)
+#define CPL_TX_DATA_ISO_OP_G(x) \
+ (((x) >> CPL_TX_DATA_ISO_OP_S) & CPL_TX_DATA_ISO_OP_M)
+
+#define CPL_TX_DATA_ISO_FIRST_S 23
+#define CPL_TX_DATA_ISO_FIRST_M 0x1
+#define CPL_TX_DATA_ISO_FIRST_V(x) ((x) << CPL_TX_DATA_ISO_FIRST_S)
+#define CPL_TX_DATA_ISO_FIRST_G(x) \
+ (((x) >> CPL_TX_DATA_ISO_FIRST_S) & CPL_TX_DATA_ISO_FIRST_M)
+#define CPL_TX_DATA_ISO_FIRST_F CPL_TX_DATA_ISO_FIRST_V(1U)
+
+#define CPL_TX_DATA_ISO_LAST_S 22
+#define CPL_TX_DATA_ISO_LAST_M 0x1
+#define CPL_TX_DATA_ISO_LAST_V(x) ((x) << CPL_TX_DATA_ISO_LAST_S)
+#define CPL_TX_DATA_ISO_LAST_G(x) \
+ (((x) >> CPL_TX_DATA_ISO_LAST_S) & CPL_TX_DATA_ISO_LAST_M)
+#define CPL_TX_DATA_ISO_LAST_F CPL_TX_DATA_ISO_LAST_V(1U)
+
+#define CPL_TX_DATA_ISO_CPLHDRLEN_S 21
+#define CPL_TX_DATA_ISO_CPLHDRLEN_M 0x1
+#define CPL_TX_DATA_ISO_CPLHDRLEN_V(x) ((x) << CPL_TX_DATA_ISO_CPLHDRLEN_S)
+#define CPL_TX_DATA_ISO_CPLHDRLEN_G(x) \
+ (((x) >> CPL_TX_DATA_ISO_CPLHDRLEN_S) & CPL_TX_DATA_ISO_CPLHDRLEN_M)
+#define CPL_TX_DATA_ISO_CPLHDRLEN_F CPL_TX_DATA_ISO_CPLHDRLEN_V(1U)
+
+#define CPL_TX_DATA_ISO_HDRCRC_S 20
+#define CPL_TX_DATA_ISO_HDRCRC_M 0x1
+#define CPL_TX_DATA_ISO_HDRCRC_V(x) ((x) << CPL_TX_DATA_ISO_HDRCRC_S)
+#define CPL_TX_DATA_ISO_HDRCRC_G(x) \
+ (((x) >> CPL_TX_DATA_ISO_HDRCRC_S) & CPL_TX_DATA_ISO_HDRCRC_M)
+#define CPL_TX_DATA_ISO_HDRCRC_F CPL_TX_DATA_ISO_HDRCRC_V(1U)
+
+#define CPL_TX_DATA_ISO_PLDCRC_S 19
+#define CPL_TX_DATA_ISO_PLDCRC_M 0x1
+#define CPL_TX_DATA_ISO_PLDCRC_V(x) ((x) << CPL_TX_DATA_ISO_PLDCRC_S)
+#define CPL_TX_DATA_ISO_PLDCRC_G(x) \
+ (((x) >> CPL_TX_DATA_ISO_PLDCRC_S) & CPL_TX_DATA_ISO_PLDCRC_M)
+#define CPL_TX_DATA_ISO_PLDCRC_F CPL_TX_DATA_ISO_PLDCRC_V(1U)
+
+#define CPL_TX_DATA_ISO_IMMEDIATE_S 18
+#define CPL_TX_DATA_ISO_IMMEDIATE_M 0x1
+#define CPL_TX_DATA_ISO_IMMEDIATE_V(x) ((x) << CPL_TX_DATA_ISO_IMMEDIATE_S)
+#define CPL_TX_DATA_ISO_IMMEDIATE_G(x) \
+ (((x) >> CPL_TX_DATA_ISO_IMMEDIATE_S) & CPL_TX_DATA_ISO_IMMEDIATE_M)
+#define CPL_TX_DATA_ISO_IMMEDIATE_F CPL_TX_DATA_ISO_IMMEDIATE_V(1U)
+
+#define CPL_TX_DATA_ISO_SCSI_S 16
+#define CPL_TX_DATA_ISO_SCSI_M 0x3
+#define CPL_TX_DATA_ISO_SCSI_V(x) ((x) << CPL_TX_DATA_ISO_SCSI_S)
+#define CPL_TX_DATA_ISO_SCSI_G(x) \
+ (((x) >> CPL_TX_DATA_ISO_SCSI_S) & CPL_TX_DATA_ISO_SCSI_M)
+
+/* cpl_tx_data_iso.reserved2_seglen_offset fields */
+#define CPL_TX_DATA_ISO_SEGLEN_OFFSET_S 0
+#define CPL_TX_DATA_ISO_SEGLEN_OFFSET_M 0xffffff
+#define CPL_TX_DATA_ISO_SEGLEN_OFFSET_V(x) \
+ ((x) << CPL_TX_DATA_ISO_SEGLEN_OFFSET_S)
+#define CPL_TX_DATA_ISO_SEGLEN_OFFSET_G(x) \
+ (((x) >> CPL_TX_DATA_ISO_SEGLEN_OFFSET_S) & \
+ CPL_TX_DATA_ISO_SEGLEN_OFFSET_M)
+
struct cpl_rx_data {
union opcode_tid ot;
__be16 rsvd;
@@ -1184,6 +1274,12 @@ struct cpl_fw4_ack {
__be64 rsvd1;
};
+enum {
+ CPL_FW4_ACK_FLAGS_SEQVAL = 0x1, /* seqn valid */
+ CPL_FW4_ACK_FLAGS_CH = 0x2, /* channel change complete */
+ CPL_FW4_ACK_FLAGS_FLOWC = 0x4, /* fw_flowc_wr complete */
+};
+
struct cpl_fw6_msg {
u8 opcode;
u8 type;
@@ -1209,6 +1305,17 @@ struct cpl_fw6_msg_ofld_connection_wr_rpl {
__u8 rsvd[2];
};
+struct cpl_tx_data {
+ union opcode_tid ot;
+ __be32 len;
+ __be32 rsvd;
+ __be32 flags;
+};
+
+/* cpl_tx_data.flags field */
+#define TX_FORCE_S 13
+#define TX_FORCE_V(x) ((x) << TX_FORCE_S)
+
enum {
ULP_TX_MEM_READ = 2,
ULP_TX_MEM_WRITE = 3,
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
index a32de30..7ad6d4e 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
@@ -101,6 +101,7 @@ enum fw_wr_opcodes {
FW_RI_BIND_MW_WR = 0x18,
FW_RI_FR_NSMR_WR = 0x19,
FW_RI_INV_LSTAG_WR = 0x1a,
+ FW_ISCSI_TX_DATA_WR = 0x45,
FW_LASTC2E_WR = 0x70
};
@@ -561,6 +562,12 @@ enum fw_flowc_mnem {
FW_FLOWC_MNEM_SNDBUF,
FW_FLOWC_MNEM_MSS,
FW_FLOWC_MNEM_TXDATAPLEN_MAX,
+ FW_FLOWC_MNEM_TCPSTATE,
+ FW_FLOWC_MNEM_EOSTATE,
+ FW_FLOWC_MNEM_SCHEDCLASS,
+ FW_FLOWC_MNEM_DCBPRIO,
+ FW_FLOWC_MNEM_SND_SCALE,
+ FW_FLOWC_MNEM_RCV_SCALE,
};
struct fw_flowc_mnemval {
--
2.0.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [target-pending 08/12] cxgb4: update struct cxgb4_lld_info definition
2016-03-13 14:19 [target-pending 00/12] cxgb4 patch series for cxgbit.ko Varun Prakash
` (6 preceding siblings ...)
2016-03-13 14:19 ` [target-pending 07/12] cxgb4: add definitions for iSCSI target ULD Varun Prakash
@ 2016-03-13 14:19 ` Varun Prakash
2016-03-13 14:19 ` [target-pending 09/12] cxgb4: move VLAN_NONE macro definition Varun Prakash
` (4 subsequent siblings)
12 siblings, 0 replies; 16+ messages in thread
From: Varun Prakash @ 2016-03-13 14:19 UTC (permalink / raw)
To: nab; +Cc: target-devel, netdev, davem, swise, indranil, kxie, hariprasad, varun
add members for iSCSI DDP.
Signed-off-by: Varun Prakash <varun@chelsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 2 ++
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 4 ++++
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h | 4 ++++
3 files changed, 10 insertions(+)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 92086a0..646076e 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -759,6 +759,8 @@ struct adapter {
struct list_head list_node;
struct list_head rcu_node;
+ void *iscsi_ppm;
+
struct tid_info tids;
void **tid_release_head;
spinlock_t tid_release_lock;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 050f215..1a1f1c8 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -2457,6 +2457,10 @@ static void uld_attach(struct adapter *adap, unsigned int uld)
lli.wr_cred = adap->params.ofldq_wr_cred;
lli.adapter_type = adap->params.chip;
lli.iscsi_iolen = MAXRXDATA_G(t4_read_reg(adap, TP_PARA_REG2_A));
+ lli.iscsi_tagmask = t4_read_reg(adap, ULP_RX_ISCSI_TAGMASK_A);
+ lli.iscsi_pgsz_order = t4_read_reg(adap, ULP_RX_ISCSI_PSZ_A);
+ lli.iscsi_llimit = t4_read_reg(adap, ULP_RX_ISCSI_LLIMIT_A);
+ lli.iscsi_ppm = &adap->iscsi_ppm;
lli.cclk_ps = 1000000000 / adap->params.vpd.cclk;
lli.udb_density = 1 << adap->params.sge.eq_qpp;
lli.ucq_density = 1 << adap->params.sge.iq_qpp;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
index d97a81f..f3c58aa 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
@@ -275,6 +275,10 @@ struct cxgb4_lld_info {
unsigned int max_ordird_qp; /* Max ORD/IRD depth per RDMA QP */
unsigned int max_ird_adapter; /* Max IRD memory per adapter */
bool ulptx_memwrite_dsgl; /* use of T5 DSGL allowed */
+ unsigned int iscsi_tagmask; /* iscsi ddp tag mask */
+ unsigned int iscsi_pgsz_order; /* iscsi ddp page size orders */
+ unsigned int iscsi_llimit; /* chip's iscsi region llimit */
+ void **iscsi_ppm; /* iscsi page pod manager */
int nodeid; /* device numa node id */
};
--
2.0.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [target-pending 09/12] cxgb4: move VLAN_NONE macro definition
2016-03-13 14:19 [target-pending 00/12] cxgb4 patch series for cxgbit.ko Varun Prakash
` (7 preceding siblings ...)
2016-03-13 14:19 ` [target-pending 08/12] cxgb4: update struct cxgb4_lld_info definition Varun Prakash
@ 2016-03-13 14:19 ` Varun Prakash
2016-03-13 14:19 ` [target-pending 10/12] cxgb4, iw_cxgb4: move delayed ack macro definitions Varun Prakash
` (3 subsequent siblings)
12 siblings, 0 replies; 16+ messages in thread
From: Varun Prakash @ 2016-03-13 14:19 UTC (permalink / raw)
To: nab; +Cc: target-devel, netdev, davem, swise, indranil, kxie, hariprasad, varun
move VLAN_NONE macro definition from l2t.c
to l2t.h
Signed-off-by: Varun Prakash <varun@chelsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/l2t.c | 2 --
drivers/net/ethernet/chelsio/cxgb4/l2t.h | 2 ++
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/l2t.c b/drivers/net/ethernet/chelsio/cxgb4/l2t.c
index 5b0f3ef..60a2603 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/l2t.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/l2t.c
@@ -48,8 +48,6 @@
#include "t4_regs.h"
#include "t4_values.h"
-#define VLAN_NONE 0xfff
-
/* identifies sync vs async L2T_WRITE_REQs */
#define SYNC_WR_S 12
#define SYNC_WR_V(x) ((x) << SYNC_WR_S)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/l2t.h b/drivers/net/ethernet/chelsio/cxgb4/l2t.h
index 4e2d47a..79665bd 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/l2t.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/l2t.h
@@ -39,6 +39,8 @@
#include <linux/if_ether.h>
#include <linux/atomic.h>
+#define VLAN_NONE 0xfff
+
enum { L2T_SIZE = 4096 }; /* # of L2T entries */
enum {
--
2.0.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [target-pending 10/12] cxgb4, iw_cxgb4: move delayed ack macro definitions
2016-03-13 14:19 [target-pending 00/12] cxgb4 patch series for cxgbit.ko Varun Prakash
` (8 preceding siblings ...)
2016-03-13 14:19 ` [target-pending 09/12] cxgb4: move VLAN_NONE macro definition Varun Prakash
@ 2016-03-13 14:19 ` Varun Prakash
2016-03-13 14:19 ` [target-pending 11/12] cxgb4: add iSCSI DDP page pod manager Varun Prakash
` (2 subsequent siblings)
12 siblings, 0 replies; 16+ messages in thread
From: Varun Prakash @ 2016-03-13 14:19 UTC (permalink / raw)
To: nab; +Cc: target-devel, netdev, davem, swise, indranil, kxie, hariprasad, varun
move delayed ack macro definitions to common
header file t4_msg.h.
Signed-off-by: Varun Prakash <varun@chelsio.com>
---
drivers/infiniband/hw/cxgb4/t4fw_ri_api.h | 9 ---------
drivers/net/ethernet/chelsio/cxgb4/t4_msg.h | 9 +++++++++
2 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h b/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h
index 5f47e03..1e26669 100644
--- a/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h
+++ b/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h
@@ -753,13 +753,4 @@ struct fw_ri_wr {
#define FW_RI_WR_P2PTYPE_G(x) \
(((x) >> FW_RI_WR_P2PTYPE_S) & FW_RI_WR_P2PTYPE_M)
-#define RX_DACK_MODE_S 29
-#define RX_DACK_MODE_M 0x3
-#define RX_DACK_MODE_V(x) ((x) << RX_DACK_MODE_S)
-#define RX_DACK_MODE_G(x) (((x) >> RX_DACK_MODE_S) & RX_DACK_MODE_M)
-
-#define RX_DACK_CHANGE_S 31
-#define RX_DACK_CHANGE_V(x) ((x) << RX_DACK_CHANGE_S)
-#define RX_DACK_CHANGE_F RX_DACK_CHANGE_V(1U)
-
#endif /* _T4FW_RI_API_H_ */
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
index 03da7a7..a5641e2 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_msg.h
@@ -1040,6 +1040,15 @@ struct cpl_rx_data_ack {
#define RX_FORCE_ACK_V(x) ((x) << RX_FORCE_ACK_S)
#define RX_FORCE_ACK_F RX_FORCE_ACK_V(1U)
+#define RX_DACK_MODE_S 29
+#define RX_DACK_MODE_M 0x3
+#define RX_DACK_MODE_V(x) ((x) << RX_DACK_MODE_S)
+#define RX_DACK_MODE_G(x) (((x) >> RX_DACK_MODE_S) & RX_DACK_MODE_M)
+
+#define RX_DACK_CHANGE_S 31
+#define RX_DACK_CHANGE_V(x) ((x) << RX_DACK_CHANGE_S)
+#define RX_DACK_CHANGE_F RX_DACK_CHANGE_V(1U)
+
struct cpl_rx_pkt {
struct rss_header rsshdr;
u8 opcode;
--
2.0.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [target-pending 11/12] cxgb4: add iSCSI DDP page pod manager
2016-03-13 14:19 [target-pending 00/12] cxgb4 patch series for cxgbit.ko Varun Prakash
` (9 preceding siblings ...)
2016-03-13 14:19 ` [target-pending 10/12] cxgb4, iw_cxgb4: move delayed ack macro definitions Varun Prakash
@ 2016-03-13 14:19 ` Varun Prakash
2016-03-13 14:19 ` [target-pending 12/12] cxgb4: update Kconfig and Makefile Varun Prakash
2016-03-15 5:29 ` [target-pending 00/12] cxgb4 patch series for cxgbit.ko Nicholas A. Bellinger
12 siblings, 0 replies; 16+ messages in thread
From: Varun Prakash @ 2016-03-13 14:19 UTC (permalink / raw)
To: nab; +Cc: target-devel, netdev, davem, swise, indranil, kxie, hariprasad, varun
add files for common page pod manager,
both iSCSI initiator and target ULDs will
use common ppod manager for DDP.
Signed-off-by: Varun Prakash <varun@chelsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.c | 464 +++++++++++++++++++++++++
drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.h | 310 +++++++++++++++++
2 files changed, 774 insertions(+)
create mode 100644 drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.c
create mode 100644 drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.h
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.c
new file mode 100644
index 0000000..d88a7a7
--- /dev/null
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.c
@@ -0,0 +1,464 @@
+/*
+ * cxgb4_ppm.c: Chelsio common library for T4/T5 iSCSI PagePod Manager
+ *
+ * Copyright (c) 2016 Chelsio Communications, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Written by: Karen Xie (kxie@chelsio.com)
+ */
+
+#include <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/debugfs.h>
+#include <linux/export.h>
+#include <linux/list.h>
+#include <linux/skbuff.h>
+#include <linux/pci.h>
+#include <linux/scatterlist.h>
+
+#include "cxgb4_ppm.h"
+
+/* Direct Data Placement -
+ * Directly place the iSCSI Data-In or Data-Out PDU's payload into
+ * pre-posted final destination host-memory buffers based on the
+ * Initiator Task Tag (ITT) in Data-In or Target Task Tag (TTT)
+ * in Data-Out PDUs. The host memory address is programmed into
+ * h/w in the format of pagepod entries. The location of the
+ * pagepod entry is encoded into ddp tag which is used as the base
+ * for ITT/TTT.
+ */
+
+/* Direct-Data Placement page size adjustment
+ */
+int cxgbi_ppm_find_page_index(struct cxgbi_ppm *ppm, unsigned long pgsz)
+{
+ struct cxgbi_tag_format *tformat = &ppm->tformat;
+ int i;
+
+ for (i = 0; i < DDP_PGIDX_MAX; i++) {
+ if (pgsz == 1UL << (DDP_PGSZ_BASE_SHIFT +
+ tformat->pgsz_order[i])) {
+ pr_debug("%s: %s ppm, pgsz %lu -> idx %d.\n",
+ __func__, ppm->ndev->name, pgsz, i);
+ return i;
+ }
+ }
+ pr_info("ippm: ddp page size %lu not supported.\n", pgsz);
+ return DDP_PGIDX_MAX;
+}
+
+/* DDP setup & teardown
+ */
+static int ppm_find_unused_entries(unsigned long *bmap,
+ unsigned int max_ppods,
+ unsigned int start,
+ unsigned int nr,
+ unsigned int align_mask)
+{
+ unsigned long i;
+
+ i = bitmap_find_next_zero_area(bmap, max_ppods, start, nr, align_mask);
+
+ if (unlikely(i >= max_ppods) && (start > nr))
+ i = bitmap_find_next_zero_area(bmap, max_ppods, 0, start - 1,
+ align_mask);
+ if (unlikely(i >= max_ppods))
+ return -ENOSPC;
+
+ bitmap_set(bmap, i, nr);
+ return (int)i;
+}
+
+static void ppm_mark_entries(struct cxgbi_ppm *ppm, int i, int count,
+ unsigned long caller_data)
+{
+ struct cxgbi_ppod_data *pdata = ppm->ppod_data + i;
+
+ pdata->caller_data = caller_data;
+ pdata->npods = count;
+
+ if (pdata->color == ((1 << PPOD_IDX_SHIFT) - 1))
+ pdata->color = 0;
+ else
+ pdata->color++;
+}
+
+static int ppm_get_cpu_entries(struct cxgbi_ppm *ppm, unsigned int count,
+ unsigned long caller_data)
+{
+ struct cxgbi_ppm_pool *pool;
+ unsigned int cpu;
+ int i;
+
+ cpu = get_cpu();
+ pool = per_cpu_ptr(ppm->pool, cpu);
+ spin_lock_bh(&pool->lock);
+ put_cpu();
+
+ i = ppm_find_unused_entries(pool->bmap, ppm->pool_index_max,
+ pool->next, count, 0);
+ if (i < 0) {
+ pool->next = 0;
+ spin_unlock_bh(&pool->lock);
+ return -ENOSPC;
+ }
+
+ pool->next = i + count;
+ if (pool->next >= ppm->pool_index_max)
+ pool->next = 0;
+
+ spin_unlock_bh(&pool->lock);
+
+ pr_debug("%s: cpu %u, idx %d + %d (%d), next %u.\n",
+ __func__, cpu, i, count, i + cpu * ppm->pool_index_max,
+ pool->next);
+
+ i += cpu * ppm->pool_index_max;
+ ppm_mark_entries(ppm, i, count, caller_data);
+
+ return i;
+}
+
+static int ppm_get_entries(struct cxgbi_ppm *ppm, unsigned int count,
+ unsigned long caller_data)
+{
+ int i;
+
+ spin_lock_bh(&ppm->map_lock);
+ i = ppm_find_unused_entries(ppm->ppod_bmap, ppm->bmap_index_max,
+ ppm->next, count, 0);
+ if (i < 0) {
+ ppm->next = 0;
+ spin_unlock_bh(&ppm->map_lock);
+ pr_debug("ippm: NO suitable entries %u available.\n",
+ count);
+ return -ENOSPC;
+ }
+
+ ppm->next = i + count;
+ if (ppm->next >= ppm->bmap_index_max)
+ ppm->next = 0;
+
+ spin_unlock_bh(&ppm->map_lock);
+
+ pr_debug("%s: idx %d + %d (%d), next %u, caller_data 0x%lx.\n",
+ __func__, i, count, i + ppm->pool_rsvd, ppm->next,
+ caller_data);
+
+ i += ppm->pool_rsvd;
+ ppm_mark_entries(ppm, i, count, caller_data);
+
+ return i;
+}
+
+static void ppm_unmark_entries(struct cxgbi_ppm *ppm, int i, int count)
+{
+ pr_debug("%s: idx %d + %d.\n", __func__, i, count);
+
+ if (i < ppm->pool_rsvd) {
+ unsigned int cpu;
+ struct cxgbi_ppm_pool *pool;
+
+ cpu = i / ppm->pool_index_max;
+ i %= ppm->pool_index_max;
+
+ pool = per_cpu_ptr(ppm->pool, cpu);
+ spin_lock_bh(&pool->lock);
+ bitmap_clear(pool->bmap, i, count);
+
+ if (i < pool->next)
+ pool->next = i;
+ spin_unlock_bh(&pool->lock);
+
+ pr_debug("%s: cpu %u, idx %d, next %u.\n",
+ __func__, cpu, i, pool->next);
+ } else {
+ spin_lock_bh(&ppm->map_lock);
+
+ i -= ppm->pool_rsvd;
+ bitmap_clear(ppm->ppod_bmap, i, count);
+
+ if (i < ppm->next)
+ ppm->next = i;
+ spin_unlock_bh(&ppm->map_lock);
+
+ pr_debug("%s: idx %d, next %u.\n", __func__, i, ppm->next);
+ }
+}
+
+void cxgbi_ppm_ppod_release(struct cxgbi_ppm *ppm, u32 idx)
+{
+ struct cxgbi_ppod_data *pdata;
+
+ if (idx >= ppm->ppmax) {
+ pr_warn("ippm: idx too big %u > %u.\n", idx, ppm->ppmax);
+ return;
+ }
+
+ pdata = ppm->ppod_data + idx;
+ if (!pdata->npods) {
+ pr_warn("ippm: idx %u, npods 0.\n", idx);
+ return;
+ }
+
+ pr_debug("release idx %u, npods %u.\n", idx, pdata->npods);
+ ppm_unmark_entries(ppm, idx, pdata->npods);
+}
+EXPORT_SYMBOL(cxgbi_ppm_ppod_release);
+
+int cxgbi_ppm_ppods_reserve(struct cxgbi_ppm *ppm, unsigned short nr_pages,
+ u32 per_tag_pg_idx, u32 *ppod_idx,
+ u32 *ddp_tag, unsigned long caller_data)
+{
+ struct cxgbi_ppod_data *pdata;
+ unsigned int npods;
+ int idx = -1;
+ unsigned int hwidx;
+ u32 tag;
+
+ npods = (nr_pages + PPOD_PAGES_MAX - 1) >> PPOD_PAGES_SHIFT;
+ if (!npods) {
+ pr_warn("%s: pages %u -> npods %u, full.\n",
+ __func__, nr_pages, npods);
+ return -EINVAL;
+ }
+
+ /* grab from cpu pool first */
+ idx = ppm_get_cpu_entries(ppm, npods, caller_data);
+ /* try the general pool */
+ if (idx < 0)
+ idx = ppm_get_entries(ppm, npods, caller_data);
+ if (idx < 0) {
+ pr_debug("ippm: pages %u, nospc %u, nxt %u, 0x%lx.\n",
+ nr_pages, npods, ppm->next, caller_data);
+ return idx;
+ }
+
+ pdata = ppm->ppod_data + idx;
+ hwidx = ppm->base_idx + idx;
+
+ tag = cxgbi_ppm_make_ddp_tag(hwidx, pdata->color);
+
+ if (per_tag_pg_idx)
+ tag |= (per_tag_pg_idx << 30) & 0xC0000000;
+
+ *ppod_idx = idx;
+ *ddp_tag = tag;
+
+ pr_debug("ippm: sg %u, tag 0x%x(%u,%u), data 0x%lx.\n",
+ nr_pages, tag, idx, npods, caller_data);
+
+ return npods;
+}
+EXPORT_SYMBOL(cxgbi_ppm_ppods_reserve);
+
+void cxgbi_ppm_make_ppod_hdr(struct cxgbi_ppm *ppm, u32 tag,
+ unsigned int tid, unsigned int offset,
+ unsigned int length,
+ struct cxgbi_pagepod_hdr *hdr)
+{
+ /* The ddp tag in pagepod should be with bit 31:30 set to 0.
+ * The ddp Tag on the wire should be with non-zero 31:30 to the peer
+ */
+ tag &= 0x3FFFFFFF;
+
+ hdr->vld_tid = htonl(PPOD_VALID_FLAG | PPOD_TID(tid));
+
+ hdr->rsvd = 0;
+ hdr->pgsz_tag_clr = htonl(tag & ppm->tformat.idx_clr_mask);
+ hdr->max_offset = htonl(length);
+ hdr->page_offset = htonl(offset);
+
+ pr_debug("ippm: tag 0x%x, tid 0x%x, xfer %u, off %u.\n",
+ tag, tid, length, offset);
+}
+EXPORT_SYMBOL(cxgbi_ppm_make_ppod_hdr);
+
+static void ppm_free(struct cxgbi_ppm *ppm)
+{
+ vfree(ppm);
+}
+
+static void ppm_destroy(struct kref *kref)
+{
+ struct cxgbi_ppm *ppm = container_of(kref,
+ struct cxgbi_ppm,
+ refcnt);
+ pr_info("ippm: kref 0, destroy %s ppm 0x%p.\n",
+ ppm->ndev->name, ppm);
+
+ *ppm->ppm_pp = NULL;
+
+ free_percpu(ppm->pool);
+ ppm_free(ppm);
+}
+
+int cxgbi_ppm_release(struct cxgbi_ppm *ppm)
+{
+ if (ppm) {
+ int rv;
+
+ rv = kref_put(&ppm->refcnt, ppm_destroy);
+ return rv;
+ }
+ return 1;
+}
+
+static struct cxgbi_ppm_pool *ppm_alloc_cpu_pool(unsigned int *total,
+ unsigned int *pcpu_ppmax)
+{
+ struct cxgbi_ppm_pool *pools;
+ unsigned int ppmax = (*total) / num_possible_cpus();
+ unsigned int max = (PCPU_MIN_UNIT_SIZE - sizeof(*pools)) << 3;
+ unsigned int bmap;
+ unsigned int alloc_sz;
+ unsigned int count = 0;
+ unsigned int cpu;
+
+ /* make sure per cpu pool fits into PCPU_MIN_UNIT_SIZE */
+ if (ppmax > max)
+ ppmax = max;
+
+ /* pool size must be multiple of unsigned long */
+ bmap = BITS_TO_LONGS(ppmax);
+ ppmax = (bmap * sizeof(unsigned long)) << 3;
+
+ alloc_sz = sizeof(*pools) + sizeof(unsigned long) * bmap;
+ pools = __alloc_percpu(alloc_sz, __alignof__(struct cxgbi_ppm_pool));
+
+ if (!pools)
+ return NULL;
+
+ for_each_possible_cpu(cpu) {
+ struct cxgbi_ppm_pool *ppool = per_cpu_ptr(pools, cpu);
+
+ memset(ppool, 0, alloc_sz);
+ spin_lock_init(&ppool->lock);
+ count += ppmax;
+ }
+
+ *total = count;
+ *pcpu_ppmax = ppmax;
+
+ return pools;
+}
+
+int cxgbi_ppm_init(void **ppm_pp, struct net_device *ndev,
+ struct pci_dev *pdev, void *lldev,
+ struct cxgbi_tag_format *tformat,
+ unsigned int ppmax,
+ unsigned int llimit,
+ unsigned int start,
+ unsigned int reserve_factor)
+{
+ struct cxgbi_ppm *ppm = (struct cxgbi_ppm *)(*ppm_pp);
+ struct cxgbi_ppm_pool *pool = NULL;
+ unsigned int ppmax_pool = 0;
+ unsigned int pool_index_max = 0;
+ unsigned int alloc_sz;
+ unsigned int ppod_bmap_size;
+
+ if (ppm) {
+ pr_info("ippm: %s, ppm 0x%p,0x%p already initialized, %u/%u.\n",
+ ndev->name, ppm_pp, ppm, ppm->ppmax, ppmax);
+ kref_get(&ppm->refcnt);
+ return 1;
+ }
+
+ if (reserve_factor) {
+ ppmax_pool = ppmax / reserve_factor;
+ pool = ppm_alloc_cpu_pool(&ppmax_pool, &pool_index_max);
+
+ pr_debug("%s: ppmax %u, cpu total %u, per cpu %u.\n",
+ ndev->name, ppmax, ppmax_pool, pool_index_max);
+ }
+
+ ppod_bmap_size = BITS_TO_LONGS(ppmax - ppmax_pool);
+ alloc_sz = sizeof(struct cxgbi_ppm) +
+ ppmax * (sizeof(struct cxgbi_ppod_data)) +
+ ppod_bmap_size * sizeof(unsigned long);
+
+ ppm = vmalloc(alloc_sz);
+ if (!ppm)
+ goto release_ppm_pool;
+
+ memset(ppm, 0, alloc_sz);
+
+ ppm->ppod_bmap = (unsigned long *)(&ppm->ppod_data[ppmax]);
+
+ if ((ppod_bmap_size >> 3) > (ppmax - ppmax_pool)) {
+ unsigned int start = ppmax - ppmax_pool;
+ unsigned int end = ppod_bmap_size >> 3;
+
+ bitmap_set(ppm->ppod_bmap, ppmax, end - start);
+ pr_info("%s: %u - %u < %u * 8, mask extra bits %u, %u.\n",
+ __func__, ppmax, ppmax_pool, ppod_bmap_size, start,
+ end);
+ }
+
+ spin_lock_init(&ppm->map_lock);
+ kref_init(&ppm->refcnt);
+
+ memcpy(&ppm->tformat, tformat, sizeof(struct cxgbi_tag_format));
+
+ ppm->ppm_pp = ppm_pp;
+ ppm->ndev = ndev;
+ ppm->pdev = pdev;
+ ppm->lldev = lldev;
+ ppm->ppmax = ppmax;
+ ppm->next = 0;
+ ppm->llimit = llimit;
+ ppm->base_idx = start > llimit ?
+ (start - llimit + 1) >> PPOD_SIZE_SHIFT : 0;
+ ppm->bmap_index_max = ppmax - ppmax_pool;
+
+ ppm->pool = pool;
+ ppm->pool_rsvd = ppmax_pool;
+ ppm->pool_index_max = pool_index_max;
+
+ /* check one more time */
+ if (*ppm_pp) {
+ ppm_free(ppm);
+ ppm = (struct cxgbi_ppm *)(*ppm_pp);
+
+ pr_info("ippm: %s, ppm 0x%p,0x%p already initialized, %u/%u.\n",
+ ndev->name, ppm_pp, *ppm_pp, ppm->ppmax, ppmax);
+
+ kref_get(&ppm->refcnt);
+ return 1;
+ }
+ *ppm_pp = ppm;
+
+ ppm->tformat.pgsz_idx_dflt = cxgbi_ppm_find_page_index(ppm, PAGE_SIZE);
+
+ pr_info("ippm %s: ppm 0x%p, 0x%p, base %u/%u, pg %lu,%u, rsvd %u,%u.\n",
+ ndev->name, ppm_pp, ppm, ppm->base_idx, ppm->ppmax, PAGE_SIZE,
+ ppm->tformat.pgsz_idx_dflt, ppm->pool_rsvd,
+ ppm->pool_index_max);
+
+ return 0;
+
+release_ppm_pool:
+ free_percpu(pool);
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(cxgbi_ppm_init);
+
+unsigned int cxgbi_tagmask_set(unsigned int ppmax)
+{
+ unsigned int bits = fls(ppmax);
+
+ if (bits > PPOD_IDX_MAX_SIZE)
+ bits = PPOD_IDX_MAX_SIZE;
+
+ pr_info("ippm: ppmax %u/0x%x -> bits %u, tagmask 0x%x.\n",
+ ppmax, ppmax, bits, 1 << (bits + PPOD_IDX_SHIFT));
+
+ return 1 << (bits + PPOD_IDX_SHIFT);
+}
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.h
new file mode 100644
index 0000000..d487326
--- /dev/null
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ppm.h
@@ -0,0 +1,310 @@
+/*
+ * cxgb4_ppm.h: Chelsio common library for T4/T5 iSCSI ddp operation
+ *
+ * Copyright (c) 2016 Chelsio Communications, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Written by: Karen Xie (kxie@chelsio.com)
+ */
+
+#ifndef __CXGB4PPM_H__
+#define __CXGB4PPM_H__
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/debugfs.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <linux/scatterlist.h>
+#include <linux/skbuff.h>
+#include <linux/vmalloc.h>
+#include <linux/bitmap.h>
+
+struct cxgbi_pagepod_hdr {
+ u32 vld_tid;
+ u32 pgsz_tag_clr;
+ u32 max_offset;
+ u32 page_offset;
+ u64 rsvd;
+};
+
+#define PPOD_PAGES_MAX 4
+struct cxgbi_pagepod {
+ struct cxgbi_pagepod_hdr hdr;
+ u64 addr[PPOD_PAGES_MAX + 1];
+};
+
+/* ddp tag format
+ * for a 32-bit tag:
+ * bit #
+ * 31 ..... ..... 0
+ * X Y...Y Z...Z, where
+ * ^ ^^^^^ ^^^^
+ * | | |____ when ddp bit = 0: color bits
+ * | |
+ * | |____ when ddp bit = 0: idx into the ddp memory region
+ * |
+ * |____ ddp bit: 0 - ddp tag, 1 - non-ddp tag
+ *
+ * [page selector:2] [sw/free bits] [0] [idx] [color:6]
+ */
+
+#define DDP_PGIDX_MAX 4
+#define DDP_PGSZ_BASE_SHIFT 12 /* base page 4K */
+
+struct cxgbi_task_tag_info {
+ unsigned char flags;
+#define CXGBI_PPOD_INFO_FLAG_VALID 0x1
+#define CXGBI_PPOD_INFO_FLAG_MAPPED 0x2
+ unsigned char cid;
+ unsigned short pg_shift;
+ unsigned int npods;
+ unsigned int idx;
+ unsigned int tag;
+ struct cxgbi_pagepod_hdr hdr;
+ int nents;
+ int nr_pages;
+ struct scatterlist *sgl;
+};
+
+struct cxgbi_tag_format {
+ unsigned char pgsz_order[DDP_PGIDX_MAX];
+ unsigned char pgsz_idx_dflt;
+ unsigned char free_bits:4;
+ unsigned char color_bits:4;
+ unsigned char idx_bits;
+ unsigned char rsvd_bits;
+ unsigned int no_ddp_mask;
+ unsigned int idx_mask;
+ unsigned int color_mask;
+ unsigned int idx_clr_mask;
+ unsigned int rsvd_mask;
+};
+
+struct cxgbi_ppod_data {
+ unsigned char pg_idx:2;
+ unsigned char color:6;
+ unsigned char chan_id;
+ unsigned short npods;
+ unsigned long caller_data;
+};
+
+/* per cpu ppm pool */
+struct cxgbi_ppm_pool {
+ unsigned int base; /* base index */
+ unsigned int next; /* next possible free index */
+ spinlock_t lock; /* ppm pool lock */
+ unsigned long bmap[0];
+} ____cacheline_aligned_in_smp;
+
+struct cxgbi_ppm {
+ struct kref refcnt;
+ struct net_device *ndev; /* net_device, 1st port */
+ struct pci_dev *pdev;
+ void *lldev;
+ void **ppm_pp;
+ struct cxgbi_tag_format tformat;
+ unsigned int ppmax;
+ unsigned int llimit;
+ unsigned int base_idx;
+
+ unsigned int pool_rsvd;
+ unsigned int pool_index_max;
+ struct cxgbi_ppm_pool __percpu *pool;
+ /* map lock */
+ spinlock_t map_lock; /* ppm map lock */
+ unsigned int bmap_index_max;
+ unsigned int next;
+ unsigned long *ppod_bmap;
+ struct cxgbi_ppod_data ppod_data[0];
+};
+
+#define DDP_THRESHOLD 512
+
+#define PPOD_PAGES_SHIFT 2 /* 4 pages per pod */
+
+#define IPPOD_SIZE sizeof(struct cxgbi_pagepod) /* 64 */
+#define PPOD_SIZE_SHIFT 6
+
+/* page pods are allocated in groups of this size (must be power of 2) */
+#define PPOD_CLUSTER_SIZE 16U
+
+#define ULPMEM_DSGL_MAX_NPPODS 16 /* 1024/PPOD_SIZE */
+#define ULPMEM_IDATA_MAX_NPPODS 3 /* (PPOD_SIZE * 3 + ulptx hdr) < 256B */
+#define PCIE_MEMWIN_MAX_NPPODS 16 /* 1024/PPOD_SIZE */
+
+#define PPOD_COLOR_SHIFT 0
+#define PPOD_COLOR(x) ((x) << PPOD_COLOR_SHIFT)
+
+#define PPOD_IDX_SHIFT 6
+#define PPOD_IDX_MAX_SIZE 24
+
+#define PPOD_TID_SHIFT 0
+#define PPOD_TID(x) ((x) << PPOD_TID_SHIFT)
+
+#define PPOD_TAG_SHIFT 6
+#define PPOD_TAG(x) ((x) << PPOD_TAG_SHIFT)
+
+#define PPOD_VALID_SHIFT 24
+#define PPOD_VALID(x) ((x) << PPOD_VALID_SHIFT)
+#define PPOD_VALID_FLAG PPOD_VALID(1U)
+
+#define PPOD_PI_EXTRACT_CTL_SHIFT 31
+#define PPOD_PI_EXTRACT_CTL(x) ((x) << PPOD_PI_EXTRACT_CTL_SHIFT)
+#define PPOD_PI_EXTRACT_CTL_FLAG V_PPOD_PI_EXTRACT_CTL(1U)
+
+#define PPOD_PI_TYPE_SHIFT 29
+#define PPOD_PI_TYPE_MASK 0x3
+#define PPOD_PI_TYPE(x) ((x) << PPOD_PI_TYPE_SHIFT)
+
+#define PPOD_PI_CHECK_CTL_SHIFT 27
+#define PPOD_PI_CHECK_CTL_MASK 0x3
+#define PPOD_PI_CHECK_CTL(x) ((x) << PPOD_PI_CHECK_CTL_SHIFT)
+
+#define PPOD_PI_REPORT_CTL_SHIFT 25
+#define PPOD_PI_REPORT_CTL_MASK 0x3
+#define PPOD_PI_REPORT_CTL(x) ((x) << PPOD_PI_REPORT_CTL_SHIFT)
+
+static inline int cxgbi_ppm_is_ddp_tag(struct cxgbi_ppm *ppm, u32 tag)
+{
+ return !(tag & ppm->tformat.no_ddp_mask);
+}
+
+static inline int cxgbi_ppm_sw_tag_is_usable(struct cxgbi_ppm *ppm,
+ u32 tag)
+{
+ /* the sw tag must be using <= 31 bits */
+ return !(tag & 0x80000000U);
+}
+
+static inline int cxgbi_ppm_make_non_ddp_tag(struct cxgbi_ppm *ppm,
+ u32 sw_tag,
+ u32 *final_tag)
+{
+ struct cxgbi_tag_format *tformat = &ppm->tformat;
+
+ if (!cxgbi_ppm_sw_tag_is_usable(ppm, sw_tag)) {
+ pr_info("sw_tag 0x%x NOT usable.\n", sw_tag);
+ return -EINVAL;
+ }
+
+ if (!sw_tag) {
+ *final_tag = tformat->no_ddp_mask;
+ } else {
+ unsigned int shift = tformat->idx_bits + tformat->color_bits;
+ u32 lower = sw_tag & tformat->idx_clr_mask;
+ u32 upper = (sw_tag >> shift) << (shift + 1);
+
+ *final_tag = upper | tformat->no_ddp_mask | lower;
+ }
+ return 0;
+}
+
+static inline u32 cxgbi_ppm_decode_non_ddp_tag(struct cxgbi_ppm *ppm,
+ u32 tag)
+{
+ struct cxgbi_tag_format *tformat = &ppm->tformat;
+ unsigned int shift = tformat->idx_bits + tformat->color_bits;
+ u32 lower = tag & tformat->idx_clr_mask;
+ u32 upper = (tag >> tformat->rsvd_bits) << shift;
+
+ return upper | lower;
+}
+
+static inline u32 cxgbi_ppm_ddp_tag_get_idx(struct cxgbi_ppm *ppm,
+ u32 ddp_tag)
+{
+ u32 hw_idx = (ddp_tag >> PPOD_IDX_SHIFT) &
+ ppm->tformat.idx_mask;
+
+ return hw_idx - ppm->base_idx;
+}
+
+static inline u32 cxgbi_ppm_make_ddp_tag(unsigned int hw_idx,
+ unsigned char color)
+{
+ return (hw_idx << PPOD_IDX_SHIFT) | ((u32)color);
+}
+
+static inline unsigned long
+cxgbi_ppm_get_tag_caller_data(struct cxgbi_ppm *ppm,
+ u32 ddp_tag)
+{
+ u32 idx = cxgbi_ppm_ddp_tag_get_idx(ppm, ddp_tag);
+
+ return ppm->ppod_data[idx].caller_data;
+}
+
+/* sw bits are the free bits */
+static inline int cxgbi_ppm_ddp_tag_update_sw_bits(struct cxgbi_ppm *ppm,
+ u32 val, u32 orig_tag,
+ u32 *final_tag)
+{
+ struct cxgbi_tag_format *tformat = &ppm->tformat;
+ u32 v = val >> tformat->free_bits;
+
+ if (v) {
+ pr_info("sw_bits 0x%x too large, avail bits %u.\n",
+ val, tformat->free_bits);
+ return -EINVAL;
+ }
+ if (!cxgbi_ppm_is_ddp_tag(ppm, orig_tag))
+ return -EINVAL;
+
+ *final_tag = (val << tformat->rsvd_bits) |
+ (orig_tag & ppm->tformat.rsvd_mask);
+ return 0;
+}
+
+static inline void cxgbi_ppm_ppod_clear(struct cxgbi_pagepod *ppod)
+{
+ ppod->hdr.vld_tid = 0U;
+}
+
+static inline void cxgbi_tagmask_check(unsigned int tagmask,
+ struct cxgbi_tag_format *tformat)
+{
+ unsigned int bits = fls(tagmask);
+
+ /* reserve top most 2 bits for page selector */
+ tformat->free_bits = 32 - 2 - bits;
+ tformat->rsvd_bits = bits;
+ tformat->color_bits = PPOD_IDX_SHIFT;
+ tformat->idx_bits = bits - 1 - PPOD_IDX_SHIFT;
+ tformat->no_ddp_mask = 1 << (bits - 1);
+ tformat->idx_mask = (1 << tformat->idx_bits) - 1;
+ tformat->color_mask = (1 << PPOD_IDX_SHIFT) - 1;
+ tformat->idx_clr_mask = (1 << (bits - 1)) - 1;
+ tformat->rsvd_mask = (1 << bits) - 1;
+
+ pr_info("ippm: tagmask 0x%x, rsvd %u=%u+%u+1, mask 0x%x,0x%x, "
+ "pg %u,%u,%u,%u.\n",
+ tagmask, tformat->rsvd_bits, tformat->idx_bits,
+ tformat->color_bits, tformat->no_ddp_mask, tformat->rsvd_mask,
+ tformat->pgsz_order[0], tformat->pgsz_order[1],
+ tformat->pgsz_order[2], tformat->pgsz_order[3]);
+}
+
+int cxgbi_ppm_find_page_index(struct cxgbi_ppm *ppm, unsigned long pgsz);
+void cxgbi_ppm_make_ppod_hdr(struct cxgbi_ppm *ppm, u32 tag,
+ unsigned int tid, unsigned int offset,
+ unsigned int length,
+ struct cxgbi_pagepod_hdr *hdr);
+void cxgbi_ppm_ppod_release(struct cxgbi_ppm *, u32 idx);
+int cxgbi_ppm_ppods_reserve(struct cxgbi_ppm *, unsigned short nr_pages,
+ u32 per_tag_pg_idx, u32 *ppod_idx, u32 *ddp_tag,
+ unsigned long caller_data);
+int cxgbi_ppm_init(void **ppm_pp, struct net_device *, struct pci_dev *,
+ void *lldev, struct cxgbi_tag_format *,
+ unsigned int ppmax, unsigned int llimit,
+ unsigned int start,
+ unsigned int reserve_factor);
+int cxgbi_ppm_release(struct cxgbi_ppm *ppm);
+void cxgbi_tagmask_check(unsigned int tagmask, struct cxgbi_tag_format *);
+unsigned int cxgbi_tagmask_set(unsigned int ppmax);
+
+#endif /*__CXGB4PPM_H__*/
--
2.0.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* [target-pending 12/12] cxgb4: update Kconfig and Makefile
2016-03-13 14:19 [target-pending 00/12] cxgb4 patch series for cxgbit.ko Varun Prakash
` (10 preceding siblings ...)
2016-03-13 14:19 ` [target-pending 11/12] cxgb4: add iSCSI DDP page pod manager Varun Prakash
@ 2016-03-13 14:19 ` Varun Prakash
2016-03-15 5:29 ` [target-pending 00/12] cxgb4 patch series for cxgbit.ko Nicholas A. Bellinger
12 siblings, 0 replies; 16+ messages in thread
From: Varun Prakash @ 2016-03-13 14:19 UTC (permalink / raw)
To: nab; +Cc: target-devel, netdev, davem, swise, indranil, kxie, hariprasad, varun
update Kconfig and Makefile for enabling iSCSI
DDP page pod manager.
Signed-off-by: Varun Prakash <varun@chelsio.com>
---
drivers/net/ethernet/chelsio/Kconfig | 11 +++++++++++
drivers/net/ethernet/chelsio/cxgb4/Makefile | 1 +
2 files changed, 12 insertions(+)
diff --git a/drivers/net/ethernet/chelsio/Kconfig b/drivers/net/ethernet/chelsio/Kconfig
index 4d187f2..4686a85 100644
--- a/drivers/net/ethernet/chelsio/Kconfig
+++ b/drivers/net/ethernet/chelsio/Kconfig
@@ -96,6 +96,17 @@ config CHELSIO_T4_DCB
If unsure, say N.
+config CHELSIO_T4_UWIRE
+ bool "Unified Wire Support for Chelsio T5 cards"
+ default n
+ depends on CHELSIO_T4
+ ---help---
+ Enable unified-wire offload features.
+ Say Y here if you want to enable unified-wire over Ethernet
+ in the driver.
+
+ If unsure, say N.
+
config CHELSIO_T4_FCOE
bool "Fibre Channel over Ethernet (FCoE) Support for Chelsio T5 cards"
default n
diff --git a/drivers/net/ethernet/chelsio/cxgb4/Makefile b/drivers/net/ethernet/chelsio/cxgb4/Makefile
index ace0ab9..85c9282 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/Makefile
+++ b/drivers/net/ethernet/chelsio/cxgb4/Makefile
@@ -7,4 +7,5 @@ obj-$(CONFIG_CHELSIO_T4) += cxgb4.o
cxgb4-objs := cxgb4_main.o l2t.o t4_hw.o sge.o clip_tbl.o cxgb4_ethtool.o
cxgb4-$(CONFIG_CHELSIO_T4_DCB) += cxgb4_dcb.o
cxgb4-$(CONFIG_CHELSIO_T4_FCOE) += cxgb4_fcoe.o
+cxgb4-$(CONFIG_CHELSIO_T4_UWIRE) += cxgb4_ppm.o
cxgb4-$(CONFIG_DEBUG_FS) += cxgb4_debugfs.o
--
2.0.2
^ permalink raw reply related [flat|nested] 16+ messages in thread
* Re: [target-pending 00/12] cxgb4 patch series for cxgbit.ko
2016-03-13 14:19 [target-pending 00/12] cxgb4 patch series for cxgbit.ko Varun Prakash
` (11 preceding siblings ...)
2016-03-13 14:19 ` [target-pending 12/12] cxgb4: update Kconfig and Makefile Varun Prakash
@ 2016-03-15 5:29 ` Nicholas A. Bellinger
2016-03-15 7:04 ` Hariprasad Shenai
12 siblings, 1 reply; 16+ messages in thread
From: Nicholas A. Bellinger @ 2016-03-15 5:29 UTC (permalink / raw)
To: Varun Prakash
Cc: target-devel, netdev, davem, swise, indranil, kxie, hariprasad
Hi Varun & Co,
On Sun, 2016-03-13 at 19:49 +0530, Varun Prakash wrote:
> Hi Nicholas,
>
> I am posting cxgb4 patch series as
> suggested by you in following email thread
>
> http://www.spinics.net/lists/target-devel/msg12437.html
>
> This series consists of patches from
> initial cxgb4 series without any change.
>
> Thanks
> Varun
>
Thanks for re-posting iscsi segment offload (ISO) prerequisites as a
stand-alone vxgb4 network driver series.
This -v1 series has been in target-pending/for-next-merge for last
weeks, and encountered one conflict vs. net-next as reported by SFR:
https://lkml.org/lkml/2016/2/29/34
That said, I'm still OK to merge via target-pending to enable post v4.6
iscsi-target developments, as long as DaveM doesn't have an objection or
if he'd prefer to pick them up.
As-is, they still need Acked-by's from the cxgb4 driver maintainer.
Hariprasad, please give your review + ack.
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [target-pending 00/12] cxgb4 patch series for cxgbit.ko
2016-03-15 5:29 ` [target-pending 00/12] cxgb4 patch series for cxgbit.ko Nicholas A. Bellinger
@ 2016-03-15 7:04 ` Hariprasad Shenai
2016-03-15 7:13 ` Nicholas A. Bellinger
0 siblings, 1 reply; 16+ messages in thread
From: Hariprasad Shenai @ 2016-03-15 7:04 UTC (permalink / raw)
To: Nicholas A. Bellinger
Cc: Varun Prakash, target-devel, netdev, davem, swise, indranil, kxie
On Mon, Mar 14, 2016 at 22:29:11 -0700, Nicholas A. Bellinger wrote:
> Hi Varun & Co,
>
> On Sun, 2016-03-13 at 19:49 +0530, Varun Prakash wrote:
> > Hi Nicholas,
> >
> > I am posting cxgb4 patch series as
> > suggested by you in following email thread
> >
> > http://www.spinics.net/lists/target-devel/msg12437.html
> >
> > This series consists of patches from
> > initial cxgb4 series without any change.
> >
> > Thanks
> > Varun
> >
>
> Thanks for re-posting iscsi segment offload (ISO) prerequisites as a
> stand-alone vxgb4 network driver series.
>
> This -v1 series has been in target-pending/for-next-merge for last
> weeks, and encountered one conflict vs. net-next as reported by SFR:
>
> https://lkml.org/lkml/2016/2/29/34
>
> That said, I'm still OK to merge via target-pending to enable post v4.6
> iscsi-target developments, as long as DaveM doesn't have an objection or
> if he'd prefer to pick them up.
>
> As-is, they still need Acked-by's from the cxgb4 driver maintainer.
>
> Hariprasad, please give your review + ack.
>
The entire series looks good.
Acked-by: Hariprasad Shenai <hariprasad@chelsio.com>
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: [target-pending 00/12] cxgb4 patch series for cxgbit.ko
2016-03-15 7:04 ` Hariprasad Shenai
@ 2016-03-15 7:13 ` Nicholas A. Bellinger
0 siblings, 0 replies; 16+ messages in thread
From: Nicholas A. Bellinger @ 2016-03-15 7:13 UTC (permalink / raw)
To: Hariprasad Shenai
Cc: Varun Prakash, target-devel, netdev, davem, swise, indranil, kxie
On Tue, 2016-03-15 at 12:34 +0530, Hariprasad Shenai wrote:
> On Mon, Mar 14, 2016 at 22:29:11 -0700, Nicholas A. Bellinger wrote:
> > Hi Varun & Co,
> >
> > On Sun, 2016-03-13 at 19:49 +0530, Varun Prakash wrote:
> > > Hi Nicholas,
> > >
> > > I am posting cxgb4 patch series as
> > > suggested by you in following email thread
> > >
> > > http://www.spinics.net/lists/target-devel/msg12437.html
> > >
> > > This series consists of patches from
> > > initial cxgb4 series without any change.
> > >
> > > Thanks
> > > Varun
> > >
> >
> > Thanks for re-posting iscsi segment offload (ISO) prerequisites as a
> > stand-alone vxgb4 network driver series.
> >
> > This -v1 series has been in target-pending/for-next-merge for last
> > weeks, and encountered one conflict vs. net-next as reported by SFR:
> >
> > https://lkml.org/lkml/2016/2/29/34
> >
> > That said, I'm still OK to merge via target-pending to enable post v4.6
> > iscsi-target developments, as long as DaveM doesn't have an objection or
> > if he'd prefer to pick them up.
> >
> > As-is, they still need Acked-by's from the cxgb4 driver maintainer.
> >
> > Hariprasad, please give your review + ack.
> >
>
> The entire series looks good.
>
> Acked-by: Hariprasad Shenai <hariprasad@chelsio.com>
>
cxgb4 driver ACKs applied to target-pending/for-next-merge.
Thanks Hariprasad.
^ permalink raw reply [flat|nested] 16+ messages in thread
end of thread, other threads:[~2016-03-15 7:13 UTC | newest]
Thread overview: 16+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-03-13 14:19 [target-pending 00/12] cxgb4 patch series for cxgbit.ko Varun Prakash
2016-03-13 14:19 ` [target-pending 01/12] cxgb4: add new ULD type CXGB4_ULD_ISCSIT Varun Prakash
2016-03-13 14:19 ` [target-pending 02/12] cxgb4: allocate resources for CXGB4_ULD_ISCSIT Varun Prakash
2016-03-13 14:19 ` [target-pending 03/12] cxgb4: large receive offload support Varun Prakash
2016-03-13 14:19 ` [target-pending 04/12] cxgb4, iw_cxgb4: move definitions to common header file Varun Prakash
2016-03-13 14:19 ` [target-pending 05/12] cxgb4, iw_cxgb4, cxgb4i: remove duplicate definitions Varun Prakash
2016-03-13 14:19 ` [target-pending 06/12] cxgb4, cxgb4i: move struct cpl_rx_data_ddp definition Varun Prakash
2016-03-13 14:19 ` [target-pending 07/12] cxgb4: add definitions for iSCSI target ULD Varun Prakash
2016-03-13 14:19 ` [target-pending 08/12] cxgb4: update struct cxgb4_lld_info definition Varun Prakash
2016-03-13 14:19 ` [target-pending 09/12] cxgb4: move VLAN_NONE macro definition Varun Prakash
2016-03-13 14:19 ` [target-pending 10/12] cxgb4, iw_cxgb4: move delayed ack macro definitions Varun Prakash
2016-03-13 14:19 ` [target-pending 11/12] cxgb4: add iSCSI DDP page pod manager Varun Prakash
2016-03-13 14:19 ` [target-pending 12/12] cxgb4: update Kconfig and Makefile Varun Prakash
2016-03-15 5:29 ` [target-pending 00/12] cxgb4 patch series for cxgbit.ko Nicholas A. Bellinger
2016-03-15 7:04 ` Hariprasad Shenai
2016-03-15 7:13 ` Nicholas A. Bellinger
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