* [PATCH 0/4] qla2xxx: feature updates for driver.
@ 2016-11-04 16:33 himanshu.madhani
2016-11-04 16:33 ` [PATCH 1/4] qla2xxx: Only allow operational MBX to proceed during RESET himanshu.madhani
` (3 more replies)
0 siblings, 4 replies; 12+ messages in thread
From: himanshu.madhani @ 2016-11-04 16:33 UTC (permalink / raw)
To: martin.petersen; +Cc: linux-scsi, himanshu.madhani
From: Himanshu Madhani <himanshu.madhani@cavium.com>
Hi Martin,
This series contains support for Multiqueue feature. Also, improved
command submission via mailbox path in the driver.
Please apply to scsi-misc at your earliest convenience.
Thanks,
Himanshu
Himanshu Madhani (1):
qla2xxx: Only allow operational MBX to proceed during RESET.
Michael Hernandez (1):
qla2xxx: Add Block Multi Queue functionality.
Quinn Tran (1):
qla2xxx: Fix Target stack handling with Multi-queue changes
Samy (1):
qla2xxx: Fix mailbox command timeout due to starvation
drivers/scsi/qla2xxx/Makefile | 3 +-
drivers/scsi/qla2xxx/qla_attr.c | 36 ++--
drivers/scsi/qla2xxx/qla_bottom.c | 398 ++++++++++++++++++++++++++++++++++++++
drivers/scsi/qla2xxx/qla_dbg.c | 4 +-
drivers/scsi/qla2xxx/qla_def.h | 118 +++++++++--
drivers/scsi/qla2xxx/qla_gbl.h | 34 +++-
drivers/scsi/qla2xxx/qla_init.c | 14 +-
drivers/scsi/qla2xxx/qla_inline.h | 30 +++
drivers/scsi/qla2xxx/qla_iocb.c | 56 ++----
drivers/scsi/qla2xxx/qla_isr.c | 104 ++++------
drivers/scsi/qla2xxx/qla_mbx.c | 176 ++++++++++++++---
drivers/scsi/qla2xxx/qla_mid.c | 116 +++++------
drivers/scsi/qla2xxx/qla_mq.c | 278 ++++++++++++++++++++++++++
drivers/scsi/qla2xxx/qla_os.c | 326 +++++++++++++++++++------------
drivers/scsi/qla2xxx/qla_target.c | 4 +
drivers/scsi/qla2xxx/qla_top.c | 95 +++++++++
16 files changed, 1419 insertions(+), 373 deletions(-)
create mode 100644 drivers/scsi/qla2xxx/qla_bottom.c
create mode 100644 drivers/scsi/qla2xxx/qla_mq.c
create mode 100644 drivers/scsi/qla2xxx/qla_top.c
--
1.8.3.1
^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH 1/4] qla2xxx: Only allow operational MBX to proceed during RESET.
2016-11-04 16:33 [PATCH 0/4] qla2xxx: feature updates for driver himanshu.madhani
@ 2016-11-04 16:33 ` himanshu.madhani
2016-11-04 16:33 ` [PATCH 2/4] qla2xxx: Fix mailbox command timeout due to starvation himanshu.madhani
` (2 subsequent siblings)
3 siblings, 0 replies; 12+ messages in thread
From: himanshu.madhani @ 2016-11-04 16:33 UTC (permalink / raw)
To: martin.petersen; +Cc: linux-scsi, himanshu.madhani
From: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@cavium.com>
---
drivers/scsi/qla2xxx/qla_mbx.c | 52 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 52 insertions(+)
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 23698c9..b31c36b 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -10,6 +10,43 @@
#include <linux/delay.h>
#include <linux/gfp.h>
+struct rom_cmd {
+ uint16_t cmd;
+} rom_cmds[] = {
+ { MBC_LOAD_RAM },
+ { MBC_EXECUTE_FIRMWARE },
+ { MBC_READ_RAM_WORD },
+ { MBC_MAILBOX_REGISTER_TEST },
+ { MBC_VERIFY_CHECKSUM },
+ { MBC_GET_FIRMWARE_VERSION },
+ { MBC_LOAD_RISC_RAM },
+ { MBC_DUMP_RISC_RAM },
+ { MBC_LOAD_RISC_RAM_EXTENDED },
+ { MBC_DUMP_RISC_RAM_EXTENDED },
+ { MBC_WRITE_RAM_WORD_EXTENDED },
+ { MBC_READ_RAM_EXTENDED },
+ { MBC_GET_RESOURCE_COUNTS },
+ { MBC_SET_FIRMWARE_OPTION },
+ { MBC_MID_INITIALIZE_FIRMWARE },
+ { MBC_GET_FIRMWARE_STATE },
+ { MBC_GET_MEM_OFFLOAD_CNTRL_STAT },
+ { MBC_GET_RETRY_COUNT },
+ { MBC_TRACE_CONTROL },
+};
+
+static int is_rom_cmd(uint16_t cmd)
+{
+ int i;
+ struct rom_cmd *wc;
+
+ for (i = 0; i < ARRAY_SIZE(rom_cmds); i++) {
+ wc = rom_cmds + i;
+ if (wc->cmd == cmd)
+ return 1;
+ }
+
+ return 0;
+}
/*
* qla2x00_mailbox_command
@@ -92,6 +129,17 @@
return QLA_FUNCTION_TIMEOUT;
}
+ /* check if ISP abort is active and return cmd with timeout */
+ if ((test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
+ test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
+ test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) &&
+ !is_rom_cmd(mcp->mb[0])) {
+ ql_log(ql_log_info, vha, 0x1005,
+ "Cmd 0x%x aborted with timeout since ISP Abort is pending\n",
+ mcp->mb[0]);
+ return QLA_FUNCTION_TIMEOUT;
+ }
+
/*
* Wait for active mailbox commands to finish by waiting at most tov
* seconds. This is to serialize actual issuing of mailbox cmds during
@@ -178,6 +226,7 @@
WRT_REG_WORD(®->isp.hccr, HCCR_SET_HOST_INT);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ wait_time = jiffies;
if (!wait_for_completion_timeout(&ha->mbx_intr_comp,
mcp->tov * HZ)) {
ql_dbg(ql_dbg_mbx, vha, 0x117a,
@@ -186,6 +235,9 @@
clear_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
+ if (time_after(jiffies, wait_time + 5 * HZ))
+ ql_log(ql_log_warn, vha, 0x1015, "cmd=0x%x, waited %d msecs\n",
+ command, jiffies_to_msecs(jiffies - wait_time));
} else {
ql_dbg(ql_dbg_mbx, vha, 0x1011,
"Cmd=%x Polling Mode.\n", command);
--
1.8.3.1
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 2/4] qla2xxx: Fix mailbox command timeout due to starvation
2016-11-04 16:33 [PATCH 0/4] qla2xxx: feature updates for driver himanshu.madhani
2016-11-04 16:33 ` [PATCH 1/4] qla2xxx: Only allow operational MBX to proceed during RESET himanshu.madhani
@ 2016-11-04 16:33 ` himanshu.madhani
2016-11-07 15:53 ` Ewan D. Milne
2016-11-04 16:33 ` [PATCH 3/4] qla2xxx: Add Block Multi Queue functionality himanshu.madhani
2016-11-04 16:33 ` [PATCH 4/4] qla2xxx: Fix Target stack handling with Multi-queue changes himanshu.madhani
3 siblings, 1 reply; 12+ messages in thread
From: himanshu.madhani @ 2016-11-04 16:33 UTC (permalink / raw)
To: martin.petersen; +Cc: linux-scsi, himanshu.madhani
From: Samy <samy@purestorage.com>
Signed-off-by: Samy <samy@purestorage.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
---
drivers/scsi/qla2xxx/qla_def.h | 3 ++
drivers/scsi/qla2xxx/qla_mbx.c | 88 ++++++++++++++++++++++++++++++------------
drivers/scsi/qla2xxx/qla_os.c | 24 ++++++++++++
3 files changed, 91 insertions(+), 24 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 73b12e4..36eb450 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -3553,6 +3553,9 @@ struct qla_hw_data {
uint32_t idc_audit_ts;
uint32_t idc_extend_tmo;
+ /* mail box work queue */
+ struct workqueue_struct *mbx_wq;
+
/* DPC low-priority workqueue */
struct workqueue_struct *dpc_lp_wq;
struct work_struct idc_aen;
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index b31c36b..b1e0c42 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -10,6 +10,14 @@
#include <linux/delay.h>
#include <linux/gfp.h>
+struct mbx_cmd_info_t {
+ mbx_cmd_t *mcp;
+ scsi_qla_host_t *vha;
+ struct work_struct work;
+ struct completion comp;
+ int status;
+};
+
struct rom_cmd {
uint16_t cmd;
} rom_cmds[] = {
@@ -68,7 +76,7 @@ static int is_rom_cmd(uint16_t cmd)
* Kernel context.
*/
static int
-qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
+__qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
{
int rval, i;
unsigned long flags = 0;
@@ -140,19 +148,6 @@ static int is_rom_cmd(uint16_t cmd)
return QLA_FUNCTION_TIMEOUT;
}
- /*
- * Wait for active mailbox commands to finish by waiting at most tov
- * seconds. This is to serialize actual issuing of mailbox cmds during
- * non ISP abort time.
- */
- if (!wait_for_completion_timeout(&ha->mbx_cmd_comp, mcp->tov * HZ)) {
- /* Timeout occurred. Return error. */
- ql_log(ql_log_warn, vha, 0x1005,
- "Cmd access timeout, cmd=0x%x, Exiting.\n",
- mcp->mb[0]);
- return QLA_FUNCTION_TIMEOUT;
- }
-
ha->flags.mbox_busy = 1;
/* Save mailbox command for debug */
ha->mcp = mcp;
@@ -217,7 +212,7 @@ static int is_rom_cmd(uint16_t cmd)
ql_dbg(ql_dbg_mbx, vha, 0x1010,
"Pending mailbox timeout, exiting.\n");
rval = QLA_FUNCTION_TIMEOUT;
- goto premature_exit;
+ goto mbx_done;
}
WRT_REG_DWORD(®->isp82.hint, HINT_MBX_INT_PENDING);
} else if (IS_FWI2_CAPABLE(ha))
@@ -251,7 +246,7 @@ static int is_rom_cmd(uint16_t cmd)
ql_dbg(ql_dbg_mbx, vha, 0x1012,
"Pending mailbox timeout, exiting.\n");
rval = QLA_FUNCTION_TIMEOUT;
- goto premature_exit;
+ goto mbx_done;
}
WRT_REG_DWORD(®->isp82.hint, HINT_MBX_INT_PENDING);
} else if (IS_FWI2_CAPABLE(ha))
@@ -297,7 +292,7 @@ static int is_rom_cmd(uint16_t cmd)
rval = QLA_FUNCTION_FAILED;
ql_log(ql_log_warn, vha, 0x1015,
"FW hung = %d.\n", ha->flags.isp82xx_fw_hung);
- goto premature_exit;
+ goto mbx_done;
}
if (ha->mailbox_out[0] != MBS_COMMAND_COMPLETE)
@@ -353,7 +348,7 @@ static int is_rom_cmd(uint16_t cmd)
set_bit(PCI_ERR, &base_vha->dpc_flags);
ha->flags.mbox_busy = 0;
rval = QLA_FUNCTION_TIMEOUT;
- goto premature_exit;
+ goto mbx_done;
}
/* Attempt to capture firmware dump for further
@@ -431,8 +426,6 @@ static int is_rom_cmd(uint16_t cmd)
command, mcp->mb[0]);
set_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
- /* Allow next mbx cmd to come in. */
- complete(&ha->mbx_cmd_comp);
if (ha->isp_ops->abort_isp(vha)) {
/* Failed. retry later. */
set_bit(ISP_ABORT_NEEDED,
@@ -446,10 +439,6 @@ static int is_rom_cmd(uint16_t cmd)
}
}
-premature_exit:
- /* Allow next mbx cmd to come in. */
- complete(&ha->mbx_cmd_comp);
-
mbx_done:
if (rval) {
ql_dbg(ql_dbg_disc, base_vha, 0x1020,
@@ -474,6 +463,57 @@ static int is_rom_cmd(uint16_t cmd)
return rval;
}
+void
+qla2x00_mailbox_work(struct work_struct *work)
+{
+ struct mbx_cmd_info_t *cmd_info =
+ container_of(work, struct mbx_cmd_info_t, work);
+
+ cmd_info->status =
+ __qla2x00_mailbox_command(cmd_info->vha, cmd_info->mcp);
+
+ complete(&cmd_info->comp);
+}
+
+static int
+qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
+{
+ struct mbx_cmd_info_t cmd_info;
+ struct qla_hw_data *ha = vha->hw;
+ int rval;
+ uint16_t command = mcp->mb[0];
+
+ if (!ha->mbx_wq) {
+ ql_log(ql_log_warn, vha, 0x1005,
+ "mbx work queue doesn't exist: cmd=0x%x.\n", command);
+ return QLA_FUNCTION_FAILED;
+ }
+
+ ql_dbg(ql_dbg_mbx, vha, 0x1021, "Enter %s/%d: %p 0x%x.\n",
+ current->comm, task_pid_nr(current), mcp, command);
+
+ cmd_info.vha = vha;
+ cmd_info.mcp = mcp;
+ init_completion(&cmd_info.comp);
+ INIT_WORK(&cmd_info.work, qla2x00_mailbox_work);
+ queue_work(ha->mbx_wq, &cmd_info.work);
+
+ rval = wait_for_completion_timeout(&cmd_info.comp, mcp->tov * HZ);
+
+ if (rval <= 0) {
+ ql_log(ql_log_warn, vha, 0x1005,
+ "cmd failed: %s, cmd=0x%x, rval=%d Exiting.\n",
+ rval ? "signal" : "timeout", command, rval);
+ cancel_work_sync(&cmd_info.work);
+ return QLA_FUNCTION_TIMEOUT;
+ }
+
+ ql_dbg(ql_dbg_mbx, vha, 0x1021, "Done %s/%d: %p 0x%x.\n",
+ current->comm, task_pid_nr(current), mcp, command);
+
+ return cmd_info.status;
+}
+
int
qla2x00_load_ram(scsi_qla_host_t *vha, dma_addr_t req_dma, uint32_t risc_addr,
uint32_t risc_code_size)
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index ace65db..7478ca2 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -2349,6 +2349,17 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
return atomic_read(&vha->loop_state) == LOOP_READY;
}
+static void qla2x00_destroy_mbx_wq(struct qla_hw_data *ha)
+{
+ struct workqueue_struct *wq = ha->mbx_wq;
+
+ if (wq) {
+ ha->mbx_wq = NULL;
+ flush_workqueue(wq);
+ destroy_workqueue(wq);
+ }
+}
+
/*
* PCI driver interface
*/
@@ -2785,6 +2796,15 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
"req->req_q_in=%p req->req_q_out=%p rsp->rsp_q_in=%p rsp->rsp_q_out=%p.\n",
req->req_q_in, req->req_q_out, rsp->rsp_q_in, rsp->rsp_q_out);
+ sprintf(wq_name, "qla2xxx_%lu_mbx", base_vha->host_no);
+ ha->mbx_wq = create_singlethread_workqueue(wq_name);
+ if (!ha->mbx_wq) {
+ ql_log(ql_log_fatal, base_vha, 0x00f0,
+ "Unable to start mail box thread!\n");
+ ret = -ENODEV;
+ goto probe_failed;
+ }
+
if (ha->isp_ops->initialize_adapter(base_vha)) {
ql_log(ql_log_fatal, base_vha, 0x00d6,
"Failed to initialize adapter - Adapter flags %x.\n",
@@ -3059,6 +3079,8 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
qla2x00_free_fw_dump(ha);
+ qla2x00_destroy_mbx_wq(ha);
+
pci_disable_pcie_error_reporting(pdev);
pci_disable_device(pdev);
}
@@ -5011,6 +5033,8 @@ void qla2x00_relogin(struct scsi_qla_host *vha)
*/
qla2x00_free_sysfs_attr(base_vha, false);
+ qla2x00_destroy_mbx_wq(ha);
+
fc_remove_host(base_vha->host);
scsi_remove_host(base_vha->host);
--
1.8.3.1
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 3/4] qla2xxx: Add Block Multi Queue functionality.
2016-11-04 16:33 [PATCH 0/4] qla2xxx: feature updates for driver himanshu.madhani
2016-11-04 16:33 ` [PATCH 1/4] qla2xxx: Only allow operational MBX to proceed during RESET himanshu.madhani
2016-11-04 16:33 ` [PATCH 2/4] qla2xxx: Fix mailbox command timeout due to starvation himanshu.madhani
@ 2016-11-04 16:33 ` himanshu.madhani
2016-11-04 23:00 ` Christoph Hellwig
` (2 more replies)
2016-11-04 16:33 ` [PATCH 4/4] qla2xxx: Fix Target stack handling with Multi-queue changes himanshu.madhani
3 siblings, 3 replies; 12+ messages in thread
From: himanshu.madhani @ 2016-11-04 16:33 UTC (permalink / raw)
To: martin.petersen; +Cc: linux-scsi, himanshu.madhani
From: Michael Hernandez <michael.hernandez@cavium.com>
Tell the SCSI layer how many hardware queues we have based on the
number of max queue pairs created. The number of max queue pairs
created will depend on number of MSI X vector count or number of CPU's
in a system.
This feature can be turned on via CONFIG_SCSI_MQ_DEFAULT or passing
scsi_mod.use_blk_mq=Y as a parameter to the kernel
Queue pair creation depend on module parameter "ql2xmqsupport", which
need to be enabled to create queue pair.
Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com>
Signed-off-by: Michael Hernandez <michael.hernandez@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
---
drivers/scsi/qla2xxx/Makefile | 3 +-
drivers/scsi/qla2xxx/qla_attr.c | 36 ++--
drivers/scsi/qla2xxx/qla_bottom.c | 398 ++++++++++++++++++++++++++++++++++++++
drivers/scsi/qla2xxx/qla_dbg.c | 4 +-
drivers/scsi/qla2xxx/qla_def.h | 114 +++++++++--
drivers/scsi/qla2xxx/qla_gbl.h | 34 +++-
drivers/scsi/qla2xxx/qla_init.c | 14 +-
drivers/scsi/qla2xxx/qla_inline.h | 30 +++
drivers/scsi/qla2xxx/qla_iocb.c | 56 ++----
drivers/scsi/qla2xxx/qla_isr.c | 88 +++------
drivers/scsi/qla2xxx/qla_mbx.c | 44 +++--
drivers/scsi/qla2xxx/qla_mid.c | 116 +++++------
drivers/scsi/qla2xxx/qla_mq.c | 278 ++++++++++++++++++++++++++
drivers/scsi/qla2xxx/qla_os.c | 255 +++++++++++++-----------
drivers/scsi/qla2xxx/qla_target.c | 4 +
drivers/scsi/qla2xxx/qla_top.c | 95 +++++++++
16 files changed, 1237 insertions(+), 332 deletions(-)
create mode 100644 drivers/scsi/qla2xxx/qla_bottom.c
create mode 100644 drivers/scsi/qla2xxx/qla_mq.c
create mode 100644 drivers/scsi/qla2xxx/qla_top.c
diff --git a/drivers/scsi/qla2xxx/Makefile b/drivers/scsi/qla2xxx/Makefile
index 44def6b..ca04260 100644
--- a/drivers/scsi/qla2xxx/Makefile
+++ b/drivers/scsi/qla2xxx/Makefile
@@ -1,6 +1,7 @@
qla2xxx-y := qla_os.o qla_init.o qla_mbx.o qla_iocb.o qla_isr.o qla_gs.o \
qla_dbg.o qla_sup.o qla_attr.o qla_mid.o qla_dfs.o qla_bsg.o \
- qla_nx.o qla_mr.o qla_nx2.o qla_target.o qla_tmpl.o
+ qla_nx.o qla_mr.o qla_nx2.o qla_target.o qla_tmpl.o qla_mq.o \
+ qla_top.o qla_bottom.o
obj-$(CONFIG_SCSI_QLA_FC) += qla2xxx.o
obj-$(CONFIG_TCM_QLA2XXX) += tcm_qla2xxx.o
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index fe7469c..4d0fe50b 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1988,9 +1988,9 @@ struct device_attribute *qla2x00_host_attrs[] = {
scsi_qla_host_t *base_vha = shost_priv(fc_vport->shost);
scsi_qla_host_t *vha = NULL;
struct qla_hw_data *ha = base_vha->hw;
- uint16_t options = 0;
int cnt;
struct req_que *req = ha->req_q_map[0];
+ struct qla_qpair *qpair;
ret = qla24xx_vport_create_req_sanity_check(fc_vport);
if (ret) {
@@ -2075,15 +2075,9 @@ struct device_attribute *qla2x00_host_attrs[] = {
qlt_vport_create(vha, ha);
qla24xx_vport_disable(fc_vport, disable);
- if (ha->flags.cpu_affinity_enabled) {
- req = ha->req_q_map[1];
- ql_dbg(ql_dbg_multiq, vha, 0xc000,
- "Request queue %p attached with "
- "VP[%d], cpu affinity =%d\n",
- req, vha->vp_idx, ha->flags.cpu_affinity_enabled);
- goto vport_queue;
- } else if (ql2xmaxqueues == 1 || !ha->npiv_info)
+ if (!ql2xmqsupport || !ha->npiv_info)
goto vport_queue;
+
/* Create a request queue in QoS mode for the vport */
for (cnt = 0; cnt < ha->nvram_npiv_size; cnt++) {
if (memcmp(ha->npiv_info[cnt].port_name, vha->port_name, 8) == 0
@@ -2095,20 +2089,20 @@ struct device_attribute *qla2x00_host_attrs[] = {
}
if (qos) {
- ret = qla25xx_create_req_que(ha, options, vha->vp_idx, 0, 0,
- qos);
- if (!ret)
+ qpair = qla2xxx_create_qpair(vha, 0, qos, vha->vp_idx);
+ if (!qpair)
ql_log(ql_log_warn, vha, 0x7084,
- "Can't create request queue for VP[%d]\n",
+ "Can't create qpair for VP[%d]\n",
vha->vp_idx);
else {
ql_dbg(ql_dbg_multiq, vha, 0xc001,
- "Request Que:%d Q0s: %d) created for VP[%d]\n",
- ret, qos, vha->vp_idx);
+ "Queue pair: %d Qos: %d) created for VP[%d]\n",
+ qpair->id, qos, vha->vp_idx);
ql_dbg(ql_dbg_user, vha, 0x7085,
- "Request Que:%d Q0s: %d) created for VP[%d]\n",
- ret, qos, vha->vp_idx);
- req = ha->req_q_map[ret];
+ "Queue Pair: %d Qos: %d) created for VP[%d]\n",
+ qpair->id, qos, vha->vp_idx);
+ req = qpair->req;
+ vha->qpair = qpair;
}
}
@@ -2162,10 +2156,10 @@ struct device_attribute *qla2x00_host_attrs[] = {
clear_bit(vha->vp_idx, ha->vp_idx_map);
mutex_unlock(&ha->vport_lock);
- if (vha->req->id && !ha->flags.cpu_affinity_enabled) {
- if (qla25xx_delete_req_que(vha, vha->req) != QLA_SUCCESS)
+ if (vha->qpair->vp_idx == vha->vp_idx) {
+ if (qla2xxx_delete_qpair(vha, vha->qpair) != QLA_SUCCESS)
ql_log(ql_log_warn, vha, 0x7087,
- "Queue delete failed.\n");
+ "Queue Pair delete failed.\n");
}
ql_log(ql_log_info, vha, 0x7088, "VP[%d] deleted.\n", id);
diff --git a/drivers/scsi/qla2xxx/qla_bottom.c b/drivers/scsi/qla2xxx/qla_bottom.c
new file mode 100644
index 0000000..e6dee7b
--- /dev/null
+++ b/drivers/scsi/qla2xxx/qla_bottom.c
@@ -0,0 +1,398 @@
+/*
+ * QLogic Fibre Channel HBA Driver
+ * Copyright (c) 2016 QLogic Corporation
+ *
+ * See LICENSE.qla2xxx for copyright and licensing details.
+ */
+#include "qla_def.h"
+
+/**
+ * qla2xxx_start_scsi_mq() - Send a SCSI command to the ISP
+ * @sp: command to send to the ISP
+ *
+ * Returns non-zero if a failure occurred, else zero.
+ */
+
+int
+qla2xxx_start_scsi_mq(srb_t *sp)
+{
+ int nseg;
+ unsigned long flags;
+ uint32_t *clr_ptr;
+ uint32_t index;
+ uint32_t handle;
+ struct cmd_type_7 *cmd_pkt;
+ uint16_t cnt;
+ uint16_t req_cnt;
+ uint16_t tot_dsds;
+ struct req_que *req = NULL;
+ struct rsp_que *rsp = NULL;
+ struct scsi_cmnd *cmd = GET_CMD_SP(sp);
+ struct scsi_qla_host *vha = sp->fcport->vha;
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_qpair *qpair = sp->qpair;
+
+ /* Setup qpair pointers */
+ rsp = qpair->rsp;
+ req = qpair->req;
+
+ /* So we know we haven't pci_map'ed anything yet */
+ tot_dsds = 0;
+
+ /* Send marker if required */
+ if (vha->marker_needed != 0) {
+ if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) !=
+ QLA_SUCCESS)
+ return QLA_FUNCTION_FAILED;
+ vha->marker_needed = 0;
+ }
+
+ /* Acquire qpair specific lock */
+ spin_lock_irqsave(&qpair->qp_lock, flags);
+
+ /* Check for room in outstanding command list. */
+ handle = req->current_outstanding_cmd;
+ for (index = 1; index < req->num_outstanding_cmds; index++) {
+ handle++;
+ if (handle == req->num_outstanding_cmds)
+ handle = 1;
+ if (!req->outstanding_cmds[handle])
+ break;
+ }
+ if (index == req->num_outstanding_cmds)
+ goto queuing_error;
+
+ /* Map the sg table so we have an accurate count of sg entries needed */
+ if (scsi_sg_count(cmd)) {
+ nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
+ scsi_sg_count(cmd), cmd->sc_data_direction);
+ if (unlikely(!nseg))
+ goto queuing_error;
+ } else
+ nseg = 0;
+
+ tot_dsds = nseg;
+ req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
+ if (req->cnt < (req_cnt + 2)) {
+ cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
+ RD_REG_DWORD_RELAXED(req->req_q_out);
+ if (req->ring_index < cnt)
+ req->cnt = cnt - req->ring_index;
+ else
+ req->cnt = req->length -
+ (req->ring_index - cnt);
+ if (req->cnt < (req_cnt + 2))
+ goto queuing_error;
+ }
+
+ /* Build command packet. */
+ req->current_outstanding_cmd = handle;
+ req->outstanding_cmds[handle] = sp;
+ sp->handle = handle;
+ cmd->host_scribble = (unsigned char *)(unsigned long)handle;
+ req->cnt -= req_cnt;
+
+ cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
+ cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
+
+ /* Zero out remaining portion of packet. */
+ /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
+ clr_ptr = (uint32_t *)cmd_pkt + 2;
+ memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
+ cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
+
+ /* Set NPORT-ID and LUN number*/
+ cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
+ cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
+ cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
+ cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
+ cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
+
+ int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
+ host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
+
+ cmd_pkt->task = TSK_SIMPLE;
+
+ /* Load SCSI command packet. */
+ memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
+ host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
+
+ cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
+
+ /* Build IOCB segments */
+ qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
+
+ /* Set total data segment count. */
+ cmd_pkt->entry_count = (uint8_t)req_cnt;
+ wmb();
+ /* Adjust ring index. */
+ req->ring_index++;
+ if (req->ring_index == req->length) {
+ req->ring_index = 0;
+ req->ring_ptr = req->ring;
+ } else
+ req->ring_ptr++;
+
+ sp->flags |= SRB_DMA_VALID;
+
+ /* Set chip new ring index. */
+ WRT_REG_DWORD(req->req_q_in, req->ring_index);
+
+ /* Manage unprocessed RIO/ZIO commands in response queue. */
+ if (vha->flags.process_response_queue &&
+ rsp->ring_ptr->signature != RESPONSE_PROCESSED)
+ qla24xx_process_response_queue(vha, rsp);
+
+ spin_unlock_irqrestore(&qpair->qp_lock, flags);
+ return QLA_SUCCESS;
+
+queuing_error:
+ if (tot_dsds)
+ scsi_dma_unmap(cmd);
+
+ spin_unlock_irqrestore(&qpair->qp_lock, flags);
+
+ return QLA_FUNCTION_FAILED;
+}
+
+
+/**
+ * qla2xxx_dif_start_scsi_mq() - Send a SCSI command to the ISP
+ * @sp: command to send to the ISP
+ *
+ * Returns non-zero if a failure occurred, else zero.
+ */
+int
+qla2xxx_dif_start_scsi_mq(srb_t *sp)
+{
+ int nseg;
+ unsigned long flags;
+ uint32_t *clr_ptr;
+ uint32_t index;
+ uint32_t handle;
+ uint16_t cnt;
+ uint16_t req_cnt = 0;
+ uint16_t tot_dsds;
+ uint16_t tot_prot_dsds;
+ uint16_t fw_prot_opts = 0;
+ struct req_que *req = NULL;
+ struct rsp_que *rsp = NULL;
+ struct scsi_cmnd *cmd = GET_CMD_SP(sp);
+ struct scsi_qla_host *vha = sp->fcport->vha;
+ struct qla_hw_data *ha = vha->hw;
+ struct cmd_type_crc_2 *cmd_pkt;
+ uint32_t status = 0;
+ struct qla_qpair *qpair = sp->qpair;
+
+#define QDSS_GOT_Q_SPACE BIT_0
+
+ /* Check for host side state */
+ if (!qpair->online) {
+ cmd->result = DID_NO_CONNECT << 16;
+ return QLA_INTERFACE_ERROR;
+ }
+
+ if (!qpair->difdix_supported &&
+ scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
+ cmd->result = DID_NO_CONNECT << 16;
+ return QLA_INTERFACE_ERROR;
+ }
+
+ /* Only process protection or >16 cdb in this routine */
+ if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) {
+ if (cmd->cmd_len <= 16)
+ return qla2xxx_start_scsi_mq(sp);
+ }
+
+ /* Setup qpair pointers */
+ rsp = qpair->rsp;
+ req = qpair->req;
+
+ /* So we know we haven't pci_map'ed anything yet */
+ tot_dsds = 0;
+
+ /* Send marker if required */
+ if (vha->marker_needed != 0) {
+ if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) !=
+ QLA_SUCCESS)
+ return QLA_FUNCTION_FAILED;
+ vha->marker_needed = 0;
+ }
+
+ /* Acquire ring specific lock */
+ spin_lock_irqsave(&qpair->qp_lock, flags);
+
+ /* Check for room in outstanding command list. */
+ handle = req->current_outstanding_cmd;
+ for (index = 1; index < req->num_outstanding_cmds; index++) {
+ handle++;
+ if (handle == req->num_outstanding_cmds)
+ handle = 1;
+ if (!req->outstanding_cmds[handle])
+ break;
+ }
+
+ if (index == req->num_outstanding_cmds)
+ goto queuing_error;
+
+ /* Compute number of required data segments */
+ /* Map the sg table so we have an accurate count of sg entries needed */
+ if (scsi_sg_count(cmd)) {
+ nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
+ scsi_sg_count(cmd), cmd->sc_data_direction);
+ if (unlikely(!nseg))
+ goto queuing_error;
+ else
+ sp->flags |= SRB_DMA_VALID;
+
+ if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
+ (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
+ struct qla2_sgx sgx;
+ uint32_t partial;
+
+ memset(&sgx, 0, sizeof(struct qla2_sgx));
+ sgx.tot_bytes = scsi_bufflen(cmd);
+ sgx.cur_sg = scsi_sglist(cmd);
+ sgx.sp = sp;
+
+ nseg = 0;
+ while (qla24xx_get_one_block_sg(
+ cmd->device->sector_size, &sgx, &partial))
+ nseg++;
+ }
+ } else
+ nseg = 0;
+
+ /* number of required data segments */
+ tot_dsds = nseg;
+
+ /* Compute number of required protection segments */
+ if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) {
+ nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
+ scsi_prot_sg_count(cmd), cmd->sc_data_direction);
+ if (unlikely(!nseg))
+ goto queuing_error;
+ else
+ sp->flags |= SRB_CRC_PROT_DMA_VALID;
+
+ if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
+ (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
+ nseg = scsi_bufflen(cmd) / cmd->device->sector_size;
+ }
+ } else {
+ nseg = 0;
+ }
+
+ req_cnt = 1;
+ /* Total Data and protection sg segment(s) */
+ tot_prot_dsds = nseg;
+ tot_dsds += nseg;
+ if (req->cnt < (req_cnt + 2)) {
+ cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr :
+ RD_REG_DWORD_RELAXED(req->req_q_out);
+ if (req->ring_index < cnt)
+ req->cnt = cnt - req->ring_index;
+ else
+ req->cnt = req->length -
+ (req->ring_index - cnt);
+ if (req->cnt < (req_cnt + 2))
+ goto queuing_error;
+ }
+
+ status |= QDSS_GOT_Q_SPACE;
+
+ /* Build header part of command packet (excluding the OPCODE). */
+ req->current_outstanding_cmd = handle;
+ req->outstanding_cmds[handle] = sp;
+ sp->handle = handle;
+ cmd->host_scribble = (unsigned char *)(unsigned long)handle;
+ req->cnt -= req_cnt;
+
+ /* Fill-in common area */
+ cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr;
+ cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
+
+ clr_ptr = (uint32_t *)cmd_pkt + 2;
+ memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
+
+ /* Set NPORT-ID and LUN number*/
+ cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
+ cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
+ cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
+ cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
+
+ int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
+ host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
+
+ /* Total Data and protection segment(s) */
+ cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
+
+ /* Build IOCB segments and adjust for data protection segments */
+ if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *)
+ req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) !=
+ QLA_SUCCESS)
+ goto queuing_error;
+
+ cmd_pkt->entry_count = (uint8_t)req_cnt;
+ cmd_pkt->timeout = cpu_to_le16(0);
+ wmb();
+
+ /* Adjust ring index. */
+ req->ring_index++;
+ if (req->ring_index == req->length) {
+ req->ring_index = 0;
+ req->ring_ptr = req->ring;
+ } else
+ req->ring_ptr++;
+
+ /* Set chip new ring index. */
+ WRT_REG_DWORD(req->req_q_in, req->ring_index);
+
+ /* Manage unprocessed RIO/ZIO commands in response queue. */
+ if (vha->flags.process_response_queue &&
+ rsp->ring_ptr->signature != RESPONSE_PROCESSED)
+ qla24xx_process_response_queue(vha, rsp);
+
+ spin_unlock_irqrestore(&qpair->qp_lock, flags);
+
+ return QLA_SUCCESS;
+
+queuing_error:
+ if (status & QDSS_GOT_Q_SPACE) {
+ req->outstanding_cmds[handle] = NULL;
+ req->cnt += req_cnt;
+ }
+ /* Cleanup will be performed by the caller (queuecommand) */
+
+ spin_unlock_irqrestore(&qpair->qp_lock, flags);
+ return QLA_FUNCTION_FAILED;
+}
+
+irqreturn_t
+qla2xxx_msix_rsp_q(int irq, void *dev_id)
+{
+ struct qla_hw_data *ha;
+ struct qla_qpair *qpair;
+ struct device_reg_24xx __iomem *reg;
+ unsigned long flags;
+
+ qpair = dev_id;
+ if (!qpair) {
+ ql_log(ql_log_info, NULL, 0x505b,
+ "%s: NULL response queue pointer.\n", __func__);
+ return IRQ_NONE;
+ }
+ ha = qpair->hw;
+
+ /* Clear the interrupt, if enabled, for this response queue */
+ if (unlikely(!ha->flags.disable_msix_handshake)) {
+ reg = &ha->iobase->isp24;
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ }
+
+ queue_work(ha->wq, &qpair->q_work);
+
+ return IRQ_HANDLED;
+}
diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index 45af34d..21d9fb7 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -11,7 +11,7 @@
* ----------------------------------------------------------------------
* | Level | Last Value Used | Holes |
* ----------------------------------------------------------------------
- * | Module Init and Probe | 0x0191 | 0x0146 |
+ * | Module Init and Probe | 0x0193 | 0x0146 |
* | | | 0x015b-0x0160 |
* | | | 0x016e |
* | Mailbox commands | 0x1199 | 0x1193 |
@@ -58,7 +58,7 @@
* | | | 0xb13a,0xb142 |
* | | | 0xb13c-0xb140 |
* | | | 0xb149 |
- * | MultiQ | 0xc00c | |
+ * | MultiQ | 0xc010 | |
* | Misc | 0xd301 | 0xd031-0xd0ff |
* | | | 0xd101-0xd1fe |
* | | | 0xd214-0xd2fe |
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 36eb450..573b95d 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -401,6 +401,7 @@ struct srb_iocb {
uint16_t type;
char *name;
int iocbs;
+ struct qla_qpair *qpair;
union {
struct srb_iocb iocb_cmd;
struct fc_bsg_job *bsg_job;
@@ -2719,6 +2720,7 @@ struct isp_operations {
int (*get_flash_version) (struct scsi_qla_host *, void *);
int (*start_scsi) (srb_t *);
+ int (*start_scsi_mq) (srb_t *);
int (*abort_isp) (struct scsi_qla_host *);
int (*iospace_config)(struct qla_hw_data*);
int (*initialize_adapter)(struct scsi_qla_host *);
@@ -2730,8 +2732,9 @@ struct isp_operations {
#define QLA_MSIX_FW_MODE(m) (((m) & (BIT_7|BIT_8|BIT_9)) >> 7)
#define QLA_MSIX_FW_MODE_1(m) (QLA_MSIX_FW_MODE(m) == 1)
-#define QLA_MSIX_DEFAULT 0x00
-#define QLA_MSIX_RSP_Q 0x01
+#define QLA_MSIX_DEFAULT 0x00
+#define QLA_MSIX_RSP_Q 0x01
+#define QLA_MSIX_QPAIR_MULTIQ_RSP_Q 0x02
#define QLA_MIDX_DEFAULT 0
#define QLA_MIDX_RSP_Q 1
@@ -2745,9 +2748,12 @@ struct isp_operations {
struct qla_msix_entry {
int have_irq;
+ int in_use;
uint32_t vector;
uint16_t entry;
struct rsp_que *rsp;
+ char name[30];
+ void *handle;
struct irq_affinity_notify irq_notify;
int cpuid;
};
@@ -2872,7 +2878,6 @@ struct rsp_que {
struct qla_msix_entry *msix;
struct req_que *req;
srb_t *status_srb; /* status continuation entry */
- struct work_struct q_work;
dma_addr_t dma_fx00;
response_t *ring_fx00;
@@ -2909,6 +2914,44 @@ struct req_que {
uint8_t req_pkt[REQUEST_ENTRY_SIZE];
};
+/*Queue pair data structure */
+struct qla_qpair {
+ spinlock_t qp_lock;
+ atomic_t ref_count;
+ /* distill these fields down to 'online=0/1'
+ * ha->flags.eeh_busy
+ * ha->flags.pci_channel_io_perm_failure
+ * base_vha->loop_state
+ */
+ uint32_t online:1;
+ /* move vha->flags.difdix_supported here */
+ uint32_t difdix_supported:1;
+ uint32_t delete_in_progress:1;
+
+ uint16_t id; /* qp number used with FW */
+ uint16_t num_active_cmd; /* cmds down at firmware */
+ cpumask_t cpu_mask; /* CPU mask for cpu affinity operation */
+ uint16_t vp_idx; /* vport ID */
+
+ mempool_t *srb_mempool;
+
+ /* to do: New driver: move queues to here instead of pointers */
+ struct req_que *req;
+ struct rsp_que *rsp;
+ struct atio_que *atio;
+ struct qla_msix_entry *msix; /* point to &ha->msix_entries[x] */
+ struct qla_hw_data *hw;
+ struct work_struct q_work;
+ struct list_head qp_list_elem; /* vha->qp_list */
+};
+
+struct qla_percpu_qp_hint {
+ int change_in_progress;
+ struct qla_qpair *qp;
+ int redirect_to_cpuid;
+ struct qla_qpair *alternate_qp;
+};
+
/* Place holder for FW buffer parameters */
struct qlfc_fw {
void *fw_buf;
@@ -3004,7 +3047,6 @@ struct qla_hw_data {
uint32_t chip_reset_done :1;
uint32_t running_gold_fw :1;
uint32_t eeh_busy :1;
- uint32_t cpu_affinity_enabled :1;
uint32_t disable_msix_handshake :1;
uint32_t fcp_prio_enabled :1;
uint32_t isp82xx_fw_hung:1;
@@ -3061,10 +3103,15 @@ struct qla_hw_data {
uint8_t mqenable;
struct req_que **req_q_map;
struct rsp_que **rsp_q_map;
+ struct qla_qpair **queue_pair_map;
unsigned long req_qid_map[(QLA_MAX_QUEUES / 8) / sizeof(unsigned long)];
unsigned long rsp_qid_map[(QLA_MAX_QUEUES / 8) / sizeof(unsigned long)];
+ unsigned long qpair_qid_map[(QLA_MAX_QUEUES / 8)
+ / sizeof(unsigned long)];
uint8_t max_req_queues;
uint8_t max_rsp_queues;
+ uint8_t max_qpairs;
+ struct qla_qpair *base_qpair;
struct qla_npiv_entry *npiv_info;
uint16_t nvram_npiv_size;
@@ -3328,6 +3375,7 @@ struct qla_hw_data {
struct mutex vport_lock; /* Virtual port synchronization */
spinlock_t vport_slock; /* order is hardware_lock, then vport_slock */
+ struct mutex mq_lock; /* multi-queue synchronization */
struct completion mbx_cmd_comp; /* Serialize mbx access */
struct completion mbx_intr_comp; /* Used for completion notification */
struct completion dcbx_comp; /* For set port config notification */
@@ -3611,6 +3659,7 @@ struct qla_tgt_counters {
uint32_t fw_tgt_reported:1;
uint32_t bbcr_enable:1;
+ uint32_t qpairs_available:1;
} flags;
atomic_t loop_state;
@@ -3649,6 +3698,7 @@ struct qla_tgt_counters {
#define FX00_TARGET_SCAN 24
#define FX00_CRITEMP_RECOVERY 25
#define FX00_HOST_INFO_RESEND 26
+#define QPAIR_ONLINE_CHECK_NEEDED 27
unsigned long pci_flags;
#define PFLG_DISCONNECTED 0 /* PCI device removed */
@@ -3707,10 +3757,13 @@ struct qla_tgt_counters {
/* List of pending PLOGI acks, protected by hw lock */
struct list_head plogi_ack_list;
+ struct list_head qp_list;
+
uint32_t vp_abort_cnt;
struct fc_vport *fc_vport; /* holds fc_vport * for each vport */
uint16_t vp_idx; /* vport ID */
+ struct qla_qpair *qpair; /* base qpair */
unsigned long vp_flags;
#define VP_IDX_ACQUIRED 0 /* bit no 0 */
@@ -3735,6 +3788,7 @@ struct qla_tgt_counters {
struct qla_hw_data *hw;
struct scsi_qlt_host vha_tgt;
struct req_que *req;
+ struct qla_percpu_qp_hint *qps_hint;
int fw_heartbeat_counter;
int seconds_since_last_heartbeat;
struct fc_host_statistics fc_host_stat;
@@ -3766,6 +3820,23 @@ struct qla_tgt_vp_map {
scsi_qla_host_t *vha;
};
+struct qla2_sgx {
+ dma_addr_t dma_addr; /* OUT */
+ uint32_t dma_len; /* OUT */
+
+ uint32_t tot_bytes; /* IN */
+ struct scatterlist *cur_sg; /* IN */
+
+ /* for book keeping, bzero on initial invocation */
+ uint32_t bytes_consumed;
+ uint32_t num_bytes;
+ uint32_t tot_partial;
+
+ /* for debugging */
+ uint32_t num_sg;
+ srb_t *sp;
+};
+
/*
* Macros to help code, maintain, etc.
*/
@@ -3778,21 +3849,34 @@ struct qla_tgt_vp_map {
(test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) || \
test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
-#define QLA_VHA_MARK_BUSY(__vha, __bail) do { \
- atomic_inc(&__vha->vref_count); \
- mb(); \
- if (__vha->flags.delete_progress) { \
- atomic_dec(&__vha->vref_count); \
- __bail = 1; \
- } else { \
- __bail = 0; \
- } \
+#define QLA_VHA_MARK_BUSY(__vha, __bail) do { \
+ atomic_inc(&__vha->vref_count); \
+ mb(); \
+ if (__vha->flags.delete_progress) { \
+ atomic_dec(&__vha->vref_count); \
+ __bail = 1; \
+ } else { \
+ __bail = 0; \
+ } \
} while (0)
-#define QLA_VHA_MARK_NOT_BUSY(__vha) do { \
- atomic_dec(&__vha->vref_count); \
+#define QLA_VHA_MARK_NOT_BUSY(__vha) \
+ atomic_dec(&__vha->vref_count); \
+
+#define QLA_QPAIR_MARK_BUSY(__qpair, __bail) do { \
+ atomic_inc(&__qpair->ref_count); \
+ mb(); \
+ if (__qpair->delete_in_progress) { \
+ atomic_dec(&__qpair->ref_count); \
+ __bail = 1; \
+ } else { \
+ __bail = 0; \
+ } \
} while (0)
+#define QLA_QPAIR_MARK_NOT_BUSY(__qpair) \
+ atomic_dec(&__qpair->ref_count); \
+
/*
* qla2x00 local function return status codes
*/
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 6ca0081..3d20f80 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -97,6 +97,8 @@ extern void qla2x00_async_adisc_done(struct scsi_qla_host *, fc_port_t *,
*/
extern char qla2x00_version_str[];
+extern struct kmem_cache *srb_cachep;
+
extern int ql2xlogintimeout;
extern int qlport_down_retry;
extern int ql2xplogiabsentdevice;
@@ -105,8 +107,7 @@ extern void qla2x00_async_adisc_done(struct scsi_qla_host *, fc_port_t *,
extern int ql2xallocfwdump;
extern int ql2xextended_error_logging;
extern int ql2xiidmaenable;
-extern int ql2xmaxqueues;
-extern int ql2xmultique_tag;
+extern int ql2xmqsupport;
extern int ql2xfwloadbin;
extern int ql2xetsenable;
extern int ql2xshiftctondsd;
@@ -172,6 +173,7 @@ extern struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *,
extern int qla2x00_post_uevent_work(struct scsi_qla_host *, u32);
extern void qla2x00_disable_board_on_pci_error(struct work_struct *);
+extern void qla2x00_sp_compl(void *, void *, int);
/*
* Global Functions in qla_mid.c source file.
@@ -220,6 +222,8 @@ extern void qla2x00_async_event(scsi_qla_host_t *, struct rsp_que *,
extern uint16_t qla2x00_calc_iocbs_64(uint16_t);
extern void qla2x00_build_scsi_iocbs_32(srb_t *, cmd_entry_t *, uint16_t);
extern void qla2x00_build_scsi_iocbs_64(srb_t *, cmd_entry_t *, uint16_t);
+extern inline void qla24xx_build_scsi_iocbs(srb_t *, struct cmd_type_7 *,
+ uint16_t, struct req_que *);
extern int qla2x00_start_scsi(srb_t *sp);
extern int qla24xx_start_scsi(srb_t *sp);
int qla2x00_marker(struct scsi_qla_host *, struct req_que *, struct rsp_que *,
@@ -237,7 +241,10 @@ extern int qla24xx_walk_and_build_sglist(struct qla_hw_data *, srb_t *,
uint32_t *, uint16_t, struct qla_tgt_cmd *);
extern int qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *, srb_t *,
uint32_t *, uint16_t, struct qla_tgt_cmd *);
-
+extern int qla24xx_get_one_block_sg(uint32_t, struct qla2_sgx *, uint32_t *);
+extern inline int qla24xx_configure_prot_mode(srb_t *, uint16_t *);
+extern inline int qla24xx_build_scsi_crc_2_iocbs(srb_t *,
+ struct cmd_type_crc_2 *, uint16_t, uint16_t, uint16_t);
/*
* Global Function Prototypes in qla_mbx.c source file.
@@ -468,6 +475,8 @@ extern int qla24xx_set_fcp_prio(scsi_qla_host_t *, uint16_t, uint16_t,
extern void
qla2x00_process_completed_request(struct scsi_qla_host *, struct req_que *,
uint32_t);
+extern irqreturn_t
+qla2xxx_msix_rsp_q(int irq, void *dev_id);
/*
* Global Function Prototypes in qla_sup.c source file.
@@ -603,15 +612,18 @@ extern int qla24xx_fcp_prio_cfg_valid(scsi_qla_host_t *,
extern int qla2x00_dfs_remove(scsi_qla_host_t *);
/* Globa function prototypes for multi-q */
-extern int qla25xx_request_irq(struct rsp_que *);
+extern int qla25xx_request_irq(struct qla_hw_data *, struct qla_qpair *,
+ struct qla_msix_entry *, int);
extern int qla25xx_init_req_que(struct scsi_qla_host *, struct req_que *);
extern int qla25xx_init_rsp_que(struct scsi_qla_host *, struct rsp_que *);
extern int qla25xx_create_req_que(struct qla_hw_data *, uint16_t, uint8_t,
uint16_t, int, uint8_t);
extern int qla25xx_create_rsp_que(struct qla_hw_data *, uint16_t, uint8_t,
- uint16_t, int);
+ uint16_t, struct qla_qpair *);
+
extern void qla2x00_init_response_q_entries(struct rsp_que *);
extern int qla25xx_delete_req_que(struct scsi_qla_host *, struct req_que *);
+extern int qla25xx_delete_rsp_que(struct scsi_qla_host *, struct rsp_que *);
extern int qla25xx_delete_queues(struct scsi_qla_host *);
extern uint16_t qla24xx_rd_req_reg(struct qla_hw_data *, uint16_t);
extern uint16_t qla25xx_rd_req_reg(struct qla_hw_data *, uint16_t);
@@ -784,5 +796,17 @@ extern int qla_get_exlogin_status(scsi_qla_host_t *, uint16_t *,
extern int qla_get_exchoffld_status(scsi_qla_host_t *, uint16_t *, uint16_t *);
extern int qla_set_exchoffld_mem_cfg(scsi_qla_host_t *, dma_addr_t);
extern void qlt_handle_abts_recv(struct scsi_qla_host *, response_t *);
+extern size_t qlt_add_vtarget(u64, u64, u64);
+extern size_t qlt_del_vtarget(u64);
+
+/* Function declarations for queue pairs */
+extern struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *,
+ cpumask_var_t, int, int);
+extern int qla2xxx_delete_qpair(struct scsi_qla_host *, struct qla_qpair *);
+extern int qla2xxx_mqueuecommand(struct Scsi_Host *, struct scsi_cmnd *,
+ struct qla_qpair *);
+extern int qla2xxx_dif_start_scsi_mq(srb_t *);
+extern void qla2xxx_qpair_sp_free_dma(void *, void *);
+extern void qla2xxx_qpair_sp_compl(void *, void *, int);
#endif /* _QLA_GBL_H */
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 5b09296..6e2458d 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1769,8 +1769,7 @@ static int qla2x00_fabric_dev_login(scsi_qla_host_t *, fc_port_t *,
if (req->outstanding_cmds)
return QLA_SUCCESS;
- if (!IS_FWI2_CAPABLE(ha) || (ha->mqiobase &&
- (ql2xmultique_tag || ql2xmaxqueues > 1)))
+ if (!IS_FWI2_CAPABLE(ha))
req->num_outstanding_cmds = DEFAULT_OUTSTANDING_COMMANDS;
else {
if (ha->cur_fw_xcb_count <= ha->cur_fw_iocb_count)
@@ -4248,10 +4247,7 @@ static void qla2xxx_nvram_wwn_from_ofw(scsi_qla_host_t *vha, nvram_t *nv)
struct req_que *req;
struct rsp_que *rsp;
- if (vha->hw->flags.cpu_affinity_enabled)
- req = vha->hw->req_q_map[0];
- else
- req = vha->req;
+ req = vha->req;
rsp = req->rsp;
clear_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
@@ -6040,10 +6036,10 @@ uint8_t qla27xx_find_valid_image(struct scsi_qla_host *vha)
return -EINVAL;
rval = qla2x00_fw_ready(base_vha);
- if (ha->flags.cpu_affinity_enabled)
- req = ha->req_q_map[0];
+ if (vha->qpair)
+ req = vha->qpair->req;
else
- req = vha->req;
+ req = ha->req_q_map[0];
rsp = req->rsp;
if (rval == QLA_SUCCESS) {
diff --git a/drivers/scsi/qla2xxx/qla_inline.h b/drivers/scsi/qla2xxx/qla_inline.h
index edc48f3..44e4045 100644
--- a/drivers/scsi/qla2xxx/qla_inline.h
+++ b/drivers/scsi/qla2xxx/qla_inline.h
@@ -216,6 +216,36 @@
}
static inline srb_t *
+qla2xxx_get_qpair_sp(struct qla_qpair *qpair, fc_port_t *fcport, gfp_t flag)
+{
+ srb_t *sp = NULL;
+ uint8_t bail;
+
+ QLA_QPAIR_MARK_BUSY(qpair, bail);
+ if (unlikely(bail))
+ return NULL;
+
+ sp = mempool_alloc(qpair->srb_mempool, flag);
+ if (!sp)
+ goto done;
+
+ memset(sp, 0, sizeof(*sp));
+ sp->fcport = fcport;
+ sp->iocbs = 1;
+done:
+ if (!sp)
+ QLA_QPAIR_MARK_NOT_BUSY(qpair);
+ return sp;
+}
+
+static inline void
+qla2xxx_rel_qpair_sp(struct qla_qpair *qpair, srb_t *sp)
+{
+ mempool_free(sp, qpair->srb_mempool);
+ QLA_QPAIR_MARK_NOT_BUSY(qpair);
+}
+
+static inline srb_t *
qla2x00_get_sp(scsi_qla_host_t *vha, fc_port_t *fcport, gfp_t flag)
{
srb_t *sp = NULL;
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index b41265a..1335b48 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -12,7 +12,6 @@
#include <scsi/scsi_tcq.h>
-static void qla25xx_set_que(srb_t *, struct rsp_que **);
/**
* qla2x00_get_cmd_direction() - Determine control_flag data direction.
* @cmd: SCSI command
@@ -143,7 +142,7 @@
return (cont_pkt);
}
-static inline int
+inline int
qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts)
{
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
@@ -693,10 +692,11 @@ int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked)
* @sp: SRB command to process
* @cmd_pkt: Command type 3 IOCB
* @tot_dsds: Total number of segments to transfer
+ * @req: pointer to request queue
*/
-static inline void
+inline void
qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt,
- uint16_t tot_dsds)
+ uint16_t tot_dsds, struct req_que *req)
{
uint16_t avail_dsds;
uint32_t *cur_dsd;
@@ -745,7 +745,7 @@ int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked)
* Five DSDs are available in the Continuation
* Type 1 IOCB.
*/
- cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
+ cont_pkt = qla2x00_prep_cont_type1_iocb(vha, req);
cur_dsd = (uint32_t *)cont_pkt->dseg_0_address;
avail_dsds = 5;
}
@@ -845,24 +845,7 @@ struct fw_dif_context {
}
}
-struct qla2_sgx {
- dma_addr_t dma_addr; /* OUT */
- uint32_t dma_len; /* OUT */
-
- uint32_t tot_bytes; /* IN */
- struct scatterlist *cur_sg; /* IN */
-
- /* for book keeping, bzero on initial invocation */
- uint32_t bytes_consumed;
- uint32_t num_bytes;
- uint32_t tot_partial;
-
- /* for debugging */
- uint32_t num_sg;
- srb_t *sp;
-};
-
-static int
+int
qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx,
uint32_t *partial)
{
@@ -1207,7 +1190,7 @@ struct qla2_sgx {
* @cmd_pkt: Command type 3 IOCB
* @tot_dsds: Total number of segments to transfer
*/
-static inline int
+inline int
qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt,
uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts)
{
@@ -1436,8 +1419,8 @@ struct qla2_sgx {
struct qla_hw_data *ha = vha->hw;
/* Setup device pointers. */
- qla25xx_set_que(sp, &rsp);
req = vha->req;
+ rsp = req->rsp;
/* So we know we haven't pci_map'ed anything yet */
tot_dsds = 0;
@@ -1523,12 +1506,10 @@ struct qla2_sgx {
cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
/* Build IOCB segments */
- qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds);
+ qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
/* Set total data segment count. */
cmd_pkt->entry_count = (uint8_t)req_cnt;
- /* Specify response queue number where completion should happen */
- cmd_pkt->entry_status = (uint8_t) rsp->id;
wmb();
/* Adjust ring index. */
req->ring_index++;
@@ -1597,9 +1578,8 @@ struct qla2_sgx {
}
/* Setup device pointers. */
-
- qla25xx_set_que(sp, &rsp);
req = vha->req;
+ rsp = req->rsp;
/* So we know we haven't pci_map'ed anything yet */
tot_dsds = 0;
@@ -1764,20 +1744,6 @@ struct qla2_sgx {
return QLA_FUNCTION_FAILED;
}
-
-static void qla25xx_set_que(srb_t *sp, struct rsp_que **rsp)
-{
- struct scsi_cmnd *cmd = GET_CMD_SP(sp);
- struct qla_hw_data *ha = sp->fcport->vha->hw;
- int affinity = cmd->request->cpu;
-
- if (ha->flags.cpu_affinity_enabled && affinity >= 0 &&
- affinity < ha->max_rsp_queues - 1)
- *rsp = ha->rsp_q_map[affinity + 1];
- else
- *rsp = ha->rsp_q_map[0];
-}
-
/* Generic Control-SRB manipulation functions. */
/* hardware_lock assumed to be held. */
@@ -2663,7 +2629,7 @@ static void qla25xx_set_que(srb_t *sp, struct rsp_que **rsp)
cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
/* Build IOCB segments */
- qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds);
+ qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
/* Set total data segment count. */
cmd_pkt->entry_count = (uint8_t)req_cnt;
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 068c4e4..a185b5f9 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -2863,41 +2863,6 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha,
}
static irqreturn_t
-qla25xx_msix_rsp_q(int irq, void *dev_id)
-{
- struct qla_hw_data *ha;
- scsi_qla_host_t *vha;
- struct rsp_que *rsp;
- struct device_reg_24xx __iomem *reg;
- unsigned long flags;
- uint32_t hccr = 0;
-
- rsp = (struct rsp_que *) dev_id;
- if (!rsp) {
- ql_log(ql_log_info, NULL, 0x505b,
- "%s: NULL response queue pointer.\n", __func__);
- return IRQ_NONE;
- }
- ha = rsp->hw;
- vha = pci_get_drvdata(ha->pdev);
-
- /* Clear the interrupt, if enabled, for this response queue */
- if (!ha->flags.disable_msix_handshake) {
- reg = &ha->iobase->isp24;
- spin_lock_irqsave(&ha->hardware_lock, flags);
- WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
- hccr = RD_REG_DWORD_RELAXED(®->hccr);
- spin_unlock_irqrestore(&ha->hardware_lock, flags);
- }
- if (qla2x00_check_reg32_for_disconnect(vha, hccr))
- goto out;
- queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
-
-out:
- return IRQ_HANDLED;
-}
-
-static irqreturn_t
qla24xx_msix_default(int irq, void *dev_id)
{
scsi_qla_host_t *vha;
@@ -3000,18 +2965,18 @@ struct qla_init_msix_entry {
irq_handler_t handler;
};
-static struct qla_init_msix_entry msix_entries[3] = {
+static struct qla_init_msix_entry msix_entries[] = {
{ "qla2xxx (default)", qla24xx_msix_default },
{ "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
- { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
+ { "qla2xxx (qpair_multiq)", qla2xxx_msix_rsp_q },
};
-static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
+static struct qla_init_msix_entry qla82xx_msix_entries[] = {
{ "qla2xxx (default)", qla82xx_msix_default },
{ "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
};
-static struct qla_init_msix_entry qla83xx_msix_entries[3] = {
+static struct qla_init_msix_entry qla83xx_msix_entries[] = {
{ "qla2xxx (default)", qla24xx_msix_default },
{ "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
{ "qla2xxx (atio_q)", qla83xx_msix_atio_q },
@@ -3029,7 +2994,7 @@ struct qla_init_msix_entry {
if (qentry->have_irq) {
/* un-register irq cpu affinity notification */
irq_set_affinity_notifier(qentry->vector, NULL);
- free_irq(qentry->vector, qentry->rsp);
+ free_irq(qentry->vector, qentry->handle);
}
}
pci_disable_msix(ha->pdev);
@@ -3092,7 +3057,8 @@ struct qla_init_msix_entry {
qentry->vector = entries[i].vector;
qentry->entry = entries[i].entry;
qentry->have_irq = 0;
- qentry->rsp = NULL;
+ qentry->in_use = 0;
+ qentry->handle = NULL;
qentry->irq_notify.notify = qla_irq_affinity_notify;
qentry->irq_notify.release = qla_irq_affinity_release;
qentry->cpuid = -1;
@@ -3101,8 +3067,10 @@ struct qla_init_msix_entry {
/* Enable MSI-X vectors for the base queue */
for (i = 0; i < 2; i++) {
qentry = &ha->msix_entries[i];
- qentry->rsp = rsp;
+ qentry->handle = rsp;
rsp->msix = qentry;
+ scnprintf(qentry->name, sizeof(qentry->name),
+ msix_entries[i].name);
if (IS_P3P_TYPE(ha))
ret = request_irq(qentry->vector,
qla82xx_msix_entries[i].handler,
@@ -3134,8 +3102,10 @@ struct qla_init_msix_entry {
*/
if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
qentry = &ha->msix_entries[ATIO_VECTOR];
- qentry->rsp = rsp;
rsp->msix = qentry;
+ qentry->handle = rsp;
+ scnprintf(qentry->name, sizeof(qentry->name),
+ qla83xx_msix_entries[ATIO_VECTOR].name);
ret = request_irq(qentry->vector,
qla83xx_msix_entries[ATIO_VECTOR].handler,
0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp);
@@ -3155,11 +3125,13 @@ struct qla_init_msix_entry {
/* Enable MSI-X vector for response queue update for queue 0 */
if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
if (ha->msixbase && ha->mqiobase &&
- (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
+ (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
+ ql2xmqsupport))
ha->mqenable = 1;
} else
- if (ha->mqiobase
- && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
+ if (ha->mqiobase &&
+ (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
+ ql2xmqsupport))
ha->mqenable = 1;
ql_dbg(ql_dbg_multiq, vha, 0xc005,
"mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
@@ -3285,16 +3257,16 @@ struct qla_init_msix_entry {
free_irq(ha->pdev->irq, rsp);
}
-
-int qla25xx_request_irq(struct rsp_que *rsp)
+int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
+ struct qla_msix_entry *msix, int vector_type)
{
- struct qla_hw_data *ha = rsp->hw;
- struct qla_init_msix_entry *intr = &msix_entries[2];
- struct qla_msix_entry *msix = rsp->msix;
+ struct qla_init_msix_entry *intr = &msix_entries[vector_type];
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
int ret;
- ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
+ scnprintf(msix->name, sizeof(msix->name),
+ "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
+ ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
if (ret) {
ql_log(ql_log_fatal, vha, 0x00e6,
"MSI-X: Unable to register handler -- %x/%d.\n",
@@ -3302,7 +3274,7 @@ int qla25xx_request_irq(struct rsp_que *rsp)
return ret;
}
msix->have_irq = 1;
- msix->rsp = rsp;
+ msix->handle = qpair;
return ret;
}
@@ -3315,11 +3287,14 @@ static void qla_irq_affinity_notify(struct irq_affinity_notify *notify,
container_of(notify, struct qla_msix_entry, irq_notify);
struct qla_hw_data *ha;
struct scsi_qla_host *base_vha;
+ struct rsp_que *rsp;
/* user is recommended to set mask to just 1 cpu */
e->cpuid = cpumask_first(mask);
- ha = e->rsp->hw;
+ rsp = (struct rsp_que *)e->handle;
+ ha = rsp->hw;
+
base_vha = pci_get_drvdata(ha->pdev);
ql_dbg(ql_dbg_init, base_vha, 0xffff,
@@ -3343,9 +3318,10 @@ static void qla_irq_affinity_release(struct kref *ref)
container_of(ref, struct irq_affinity_notify, kref);
struct qla_msix_entry *e =
container_of(notify, struct qla_msix_entry, irq_notify);
- struct scsi_qla_host *base_vha = pci_get_drvdata(e->rsp->hw->pdev);
+ struct rsp_que *rsp = (struct rsp_que *)e->handle;
+ struct scsi_qla_host *base_vha = pci_get_drvdata(rsp->hw->pdev);
ql_dbg(ql_dbg_init, base_vha, 0xffff,
- "%s: host%ld: vector %d cpu %d \n", __func__,
+ "%s: host%ld: vector %d cpu %d\n", __func__,
base_vha->host_no, e->vector, e->cpuid);
}
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index b1e0c42..cc78112 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -1286,12 +1286,17 @@ static int is_rom_cmd(uint16_t cmd)
fc_port_t *fcport = sp->fcport;
scsi_qla_host_t *vha = fcport->vha;
struct qla_hw_data *ha = vha->hw;
- struct req_que *req = vha->req;
+ struct req_que *req;
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x103b,
"Entered %s.\n", __func__);
+ if (sp->qpair)
+ req = sp->qpair->req;
+ else
+ req = vha->req;
+
spin_lock_irqsave(&ha->hardware_lock, flags);
for (handle = 1; handle < req->num_outstanding_cmds; handle++) {
if (req->outstanding_cmds[handle] == sp)
@@ -2244,10 +2249,10 @@ static int is_rom_cmd(uint16_t cmd)
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1061,
"Entered %s.\n", __func__);
- if (ha->flags.cpu_affinity_enabled)
- req = ha->req_q_map[0];
+ if (vha->qpair)
+ req = vha->qpair->req;
else
- req = vha->req;
+ req = ha->req_q_map[0];
lg = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &lg_dma);
if (lg == NULL) {
@@ -2527,10 +2532,7 @@ static int is_rom_cmd(uint16_t cmd)
}
memset(lg, 0, sizeof(struct logio_entry_24xx));
- if (ql2xmaxqueues > 1)
- req = ha->req_q_map[0];
- else
- req = vha->req;
+ req = vha->req;
lg->entry_type = LOGINOUT_PORT_IOCB_TYPE;
lg->entry_count = 1;
lg->handle = MAKE_HANDLE(req->id, lg->handle);
@@ -2996,6 +2998,9 @@ static int is_rom_cmd(uint16_t cmd)
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x108c,
"Entered %s.\n", __func__);
+ if (vha->flags.qpairs_available && sp->qpair)
+ req = sp->qpair->req;
+
if (ql2xasynctmfenable)
return qla24xx_async_abort_command(sp);
@@ -3076,6 +3081,8 @@ struct tsk_mgmt_cmd {
struct qla_hw_data *ha;
struct req_que *req;
struct rsp_que *rsp;
+ struct qla_qpair *qpair;
+ struct qla_percpu_qp_hint *hint;
vha = fcport->vha;
ha = vha->hw;
@@ -3084,10 +3091,25 @@ struct tsk_mgmt_cmd {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1092,
"Entered %s.\n", __func__);
- if (ha->flags.cpu_affinity_enabled)
- rsp = ha->rsp_q_map[tag + 1];
- else
+ if (vha->flags.qpairs_available) {
+ hint = (struct qla_percpu_qp_hint *)this_cpu_ptr(vha->qps_hint);
+ if (hint->qp) {
+ qpair = hint->qp;
+ } else if (vha->qpair) {
+ /* NPIV port */
+ qpair = vha->qpair;
+ } else {
+ /* should not happen */
+ rsp = req->rsp;
+ goto qpair_out;
+ }
+ rsp = qpair->rsp;
+ req = qpair->req;
+ } else {
rsp = req->rsp;
+ }
+
+qpair_out:
tsk = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &tsk_dma);
if (tsk == NULL) {
ql_log(ql_log_warn, vha, 0x1093,
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index cf7ba52..c6d6f0d 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -540,9 +540,10 @@
uint16_t que_id = rsp->id;
if (rsp->msix && rsp->msix->have_irq) {
- free_irq(rsp->msix->vector, rsp);
+ free_irq(rsp->msix->vector, rsp->msix->handle);
rsp->msix->have_irq = 0;
- rsp->msix->rsp = NULL;
+ rsp->msix->in_use = 0;
+ rsp->msix->handle = NULL;
}
dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
sizeof(response_t), rsp->ring, rsp->dma);
@@ -573,7 +574,7 @@
return ret;
}
-static int
+int
qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
{
int ret = -1;
@@ -596,34 +597,42 @@
struct req_que *req = NULL;
struct rsp_que *rsp = NULL;
struct qla_hw_data *ha = vha->hw;
+ struct qla_qpair *qpair, *tqpair;
- /* Delete request queues */
- for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
- req = ha->req_q_map[cnt];
- if (req && test_bit(cnt, ha->req_qid_map)) {
- ret = qla25xx_delete_req_que(vha, req);
- if (ret != QLA_SUCCESS) {
- ql_log(ql_log_warn, vha, 0x00ea,
- "Couldn't delete req que %d.\n",
- req->id);
- return ret;
+ if (ql2xmqsupport) {
+ list_for_each_entry_safe(qpair, tqpair, &vha->qp_list,
+ qp_list_elem)
+ qla2xxx_delete_qpair(vha, qpair);
+ } else {
+ /* Delete request queues */
+ for (cnt = 1; cnt < ha->max_req_queues; cnt++) {
+ req = ha->req_q_map[cnt];
+ if (req && test_bit(cnt, ha->req_qid_map)) {
+ ret = qla25xx_delete_req_que(vha, req);
+ if (ret != QLA_SUCCESS) {
+ ql_log(ql_log_warn, vha, 0x00ea,
+ "Couldn't delete req que %d.\n",
+ req->id);
+ return ret;
+ }
}
}
- }
- /* Delete response queues */
- for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
- rsp = ha->rsp_q_map[cnt];
- if (rsp && test_bit(cnt, ha->rsp_qid_map)) {
- ret = qla25xx_delete_rsp_que(vha, rsp);
- if (ret != QLA_SUCCESS) {
- ql_log(ql_log_warn, vha, 0x00eb,
- "Couldn't delete rsp que %d.\n",
- rsp->id);
- return ret;
+ /* Delete response queues */
+ for (cnt = 1; cnt < ha->max_rsp_queues; cnt++) {
+ rsp = ha->rsp_q_map[cnt];
+ if (rsp && test_bit(cnt, ha->rsp_qid_map)) {
+ ret = qla25xx_delete_rsp_que(vha, rsp);
+ if (ret != QLA_SUCCESS) {
+ ql_log(ql_log_warn, vha, 0x00eb,
+ "Couldn't delete rsp que %d.\n",
+ rsp->id);
+ return ret;
+ }
}
}
}
+
return ret;
}
@@ -659,10 +668,10 @@
if (ret != QLA_SUCCESS)
goto que_failed;
- mutex_lock(&ha->vport_lock);
+ mutex_lock(&ha->mq_lock);
que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues);
if (que_id >= ha->max_req_queues) {
- mutex_unlock(&ha->vport_lock);
+ mutex_unlock(&ha->mq_lock);
ql_log(ql_log_warn, base_vha, 0x00db,
"No resources to create additional request queue.\n");
goto que_failed;
@@ -708,7 +717,7 @@
req->req_q_out = ®->isp25mq.req_q_out;
req->max_q_depth = ha->req_q_map[0]->max_q_depth;
req->out_ptr = (void *)(req->ring + req->length);
- mutex_unlock(&ha->vport_lock);
+ mutex_unlock(&ha->mq_lock);
ql_dbg(ql_dbg_multiq, base_vha, 0xc004,
"ring_ptr=%p ring_index=%d, "
"cnt=%d id=%d max_q_depth=%d.\n",
@@ -724,9 +733,9 @@
if (ret != QLA_SUCCESS) {
ql_log(ql_log_fatal, base_vha, 0x00df,
"%s failed.\n", __func__);
- mutex_lock(&ha->vport_lock);
+ mutex_lock(&ha->mq_lock);
clear_bit(que_id, ha->req_qid_map);
- mutex_unlock(&ha->vport_lock);
+ mutex_unlock(&ha->mq_lock);
goto que_failed;
}
@@ -741,20 +750,20 @@
static void qla_do_work(struct work_struct *work)
{
unsigned long flags;
- struct rsp_que *rsp = container_of(work, struct rsp_que, q_work);
+ struct qla_qpair *qpair = container_of(work, struct qla_qpair, q_work);
struct scsi_qla_host *vha;
- struct qla_hw_data *ha = rsp->hw;
+ struct qla_hw_data *ha = qpair->hw;
- spin_lock_irqsave(&rsp->hw->hardware_lock, flags);
+ spin_lock_irqsave(&qpair->qp_lock, flags);
vha = pci_get_drvdata(ha->pdev);
- qla24xx_process_response_queue(vha, rsp);
- spin_unlock_irqrestore(&rsp->hw->hardware_lock, flags);
+ qla24xx_process_response_queue(vha, qpair->rsp);
+ spin_unlock_irqrestore(&qpair->qp_lock, flags);
}
/* create response queue */
int
qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
- uint8_t vp_idx, uint16_t rid, int req)
+ uint8_t vp_idx, uint16_t rid, struct qla_qpair *qpair)
{
int ret = 0;
struct rsp_que *rsp = NULL;
@@ -779,28 +788,24 @@ static void qla_do_work(struct work_struct *work)
goto que_failed;
}
- mutex_lock(&ha->vport_lock);
+ mutex_lock(&ha->mq_lock);
que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_rsp_queues);
if (que_id >= ha->max_rsp_queues) {
- mutex_unlock(&ha->vport_lock);
+ mutex_unlock(&ha->mq_lock);
ql_log(ql_log_warn, base_vha, 0x00e2,
"No resources to create additional request queue.\n");
goto que_failed;
}
set_bit(que_id, ha->rsp_qid_map);
- if (ha->flags.msix_enabled)
- rsp->msix = &ha->msix_entries[que_id + 1];
- else
- ql_log(ql_log_warn, base_vha, 0x00e3,
- "MSIX not enabled.\n");
+ rsp->msix = qpair->msix;
ha->rsp_q_map[que_id] = rsp;
rsp->rid = rid;
rsp->vp_idx = vp_idx;
rsp->hw = ha;
ql_dbg(ql_dbg_init, base_vha, 0x00e4,
- "queue_id=%d rid=%d vp_idx=%d hw=%p.\n",
+ "rsp queue_id=%d rid=%d vp_idx=%d hw=%p.\n",
que_id, rsp->rid, rsp->vp_idx, rsp->hw);
/* Use alternate PCI bus number */
if (MSB(rsp->rid))
@@ -812,23 +817,27 @@ static void qla_do_work(struct work_struct *work)
if (!IS_MSIX_NACK_CAPABLE(ha))
options |= BIT_6;
+ /* Set option to indicate response queue creation */
+ options |= BIT_1;
+
rsp->options = options;
rsp->id = que_id;
reg = ISP_QUE_REG(ha, que_id);
rsp->rsp_q_in = ®->isp25mq.rsp_q_in;
rsp->rsp_q_out = ®->isp25mq.rsp_q_out;
rsp->in_ptr = (void *)(rsp->ring + rsp->length);
- mutex_unlock(&ha->vport_lock);
+ mutex_unlock(&ha->mq_lock);
ql_dbg(ql_dbg_multiq, base_vha, 0xc00b,
- "options=%x id=%d rsp_q_in=%p rsp_q_out=%p",
+ "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
rsp->options, rsp->id, rsp->rsp_q_in,
rsp->rsp_q_out);
ql_dbg(ql_dbg_init, base_vha, 0x00e5,
- "options=%x id=%d rsp_q_in=%p rsp_q_out=%p",
+ "options=%x id=%d rsp_q_in=%p rsp_q_out=%p\n",
rsp->options, rsp->id, rsp->rsp_q_in,
rsp->rsp_q_out);
- ret = qla25xx_request_irq(rsp);
+ ret = qla25xx_request_irq(ha, qpair, qpair->msix,
+ QLA_MSIX_QPAIR_MULTIQ_RSP_Q);
if (ret)
goto que_failed;
@@ -836,19 +845,16 @@ static void qla_do_work(struct work_struct *work)
if (ret != QLA_SUCCESS) {
ql_log(ql_log_fatal, base_vha, 0x00e7,
"%s failed.\n", __func__);
- mutex_lock(&ha->vport_lock);
+ mutex_lock(&ha->mq_lock);
clear_bit(que_id, ha->rsp_qid_map);
- mutex_unlock(&ha->vport_lock);
+ mutex_unlock(&ha->mq_lock);
goto que_failed;
}
- if (req >= 0)
- rsp->req = ha->req_q_map[req];
- else
- rsp->req = NULL;
+ rsp->req = NULL;
qla2x00_init_response_q_entries(rsp);
- if (rsp->hw->wq)
- INIT_WORK(&rsp->q_work, qla_do_work);
+ if (qpair->hw->wq)
+ INIT_WORK(&qpair->q_work, qla_do_work);
return rsp->id;
que_failed:
diff --git a/drivers/scsi/qla2xxx/qla_mq.c b/drivers/scsi/qla2xxx/qla_mq.c
new file mode 100644
index 0000000..8eb8ae1
--- /dev/null
+++ b/drivers/scsi/qla2xxx/qla_mq.c
@@ -0,0 +1,278 @@
+/*
+ * QLogic Fibre Channel HBA Driver
+ * Copyright (c) 2003-2016 QLogic Corporation
+ *
+ * See LICENSE.qla2xxx for copyright and licensing details.
+ */
+#include "qla_def.h"
+#include "qla_gbl.h"
+
+int qla2xxx_set_affinity_hint(struct qla_qpair *qpair, cpumask_var_t cpu_mask)
+{
+ int ret;
+
+ if (!qpair || !qpair->msix)
+ return -EINVAL;
+
+ ret = irq_set_affinity_hint(qpair->msix->vector, cpu_mask);
+
+ return ret;
+}
+
+void
+qla2xxx_qpair_sp_free_dma(void *vha, void *ptr)
+{
+ srb_t *sp = (srb_t *)ptr;
+ struct scsi_cmnd *cmd = GET_CMD_SP(sp);
+ struct qla_hw_data *ha = sp->fcport->vha->hw;
+ void *ctx = GET_CMD_CTX_SP(sp);
+
+ if (sp->flags & SRB_DMA_VALID) {
+ scsi_dma_unmap(cmd);
+ sp->flags &= ~SRB_DMA_VALID;
+ }
+
+ if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
+ dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
+ scsi_prot_sg_count(cmd), cmd->sc_data_direction);
+ sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
+ }
+
+ if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
+ /* List assured to be having elements */
+ qla2x00_clean_dsd_pool(ha, sp, NULL);
+ sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
+ }
+
+ if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
+ dma_pool_free(ha->dl_dma_pool, ctx,
+ ((struct crc_context *)ctx)->crc_ctx_dma);
+ sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
+ }
+
+ if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
+ struct ct6_dsd *ctx1 = (struct ct6_dsd *)ctx;
+
+ dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
+ ctx1->fcp_cmnd_dma);
+ list_splice(&ctx1->dsd_list, &ha->gbl_dsd_list);
+ ha->gbl_dsd_inuse -= ctx1->dsd_use_cnt;
+ ha->gbl_dsd_avail += ctx1->dsd_use_cnt;
+ mempool_free(ctx1, ha->ctx_mempool);
+ }
+
+ CMD_SP(cmd) = NULL;
+ qla2xxx_rel_qpair_sp(sp->qpair, sp);
+}
+
+void
+qla2xxx_qpair_sp_compl(void *data, void *ptr, int res)
+{
+ srb_t *sp = (srb_t *)ptr;
+ struct scsi_cmnd *cmd = GET_CMD_SP(sp);
+
+ cmd->result = res;
+
+ if (atomic_read(&sp->ref_count) == 0) {
+ ql_dbg(ql_dbg_io, sp->fcport->vha, 0x3079,
+ "SP reference-count to ZERO -- sp=%p cmd=%p.\n",
+ sp, GET_CMD_SP(sp));
+ if (ql2xextended_error_logging & ql_dbg_io)
+ WARN_ON(atomic_read(&sp->ref_count) == 0);
+ return;
+ }
+ if (!atomic_dec_and_test(&sp->ref_count))
+ return;
+
+ qla2xxx_qpair_sp_free_dma(sp->fcport->vha, sp);
+ cmd->scsi_done(cmd);
+}
+
+struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, cpumask_var_t cpu_mask, int qos, int vp_idx)
+{
+ int rsp_id = 0;
+ int req_id = 0;
+ int i;
+ int cpu_id;
+ struct qla_hw_data *ha = vha->hw;
+ uint16_t qpair_id = 0;
+ struct qla_qpair *qpair = NULL;
+ struct qla_msix_entry *msix;
+ struct qla_percpu_qp_hint *hint;
+
+ if (!(ha->fw_attributes & BIT_6) || !ha->flags.msix_enabled) {
+ ql_log(ql_log_warn, vha, 0x00181,
+ "FW/Driver is not multi-queue capable.\n");
+ return NULL;
+ }
+ if (ql2xmqsupport) {
+ qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
+ if (qpair == NULL) {
+ ql_log(ql_log_warn, vha, 0x0182,
+ "Failed to allocate memory for queue pair.\n");
+ return NULL;
+ }
+ memset(qpair, 0, sizeof(struct qla_qpair));
+
+ qpair->hw = vha->hw;
+
+ /* Assign available que pair id */
+ mutex_lock(&ha->mq_lock);
+ qpair_id = find_first_zero_bit(ha->qpair_qid_map, ha->max_qpairs);
+ if (qpair_id >= ha->max_qpairs) {
+ mutex_unlock(&ha->mq_lock);
+ ql_log(ql_log_warn, vha, 0x0183,
+ "No resources to create additional q pair.\n");
+ goto fail_qid_map;
+ }
+ set_bit(qpair_id, ha->qpair_qid_map);
+ ha->queue_pair_map[qpair_id] = qpair;
+ qpair->id = qpair_id;
+ qpair->vp_idx = vp_idx;
+
+ for (i = 0; i < ha->msix_count; i++) {
+ msix = &ha->msix_entries[i + 2];
+ if (msix->in_use)
+ continue;
+ qpair->msix = msix;
+ ql_log(ql_dbg_multiq, vha, 0xc00f,
+ "Vector %x selected for qpair\n", msix->vector);
+ break;
+ }
+ if (!qpair->msix) {
+ ql_log(ql_log_warn, vha, 0x0184,
+ "Out of MSI-X vectors!.\n");
+ goto fail_msix;
+ }
+
+ qpair->msix->in_use = 1;
+ list_add_tail(&qpair->qp_list_elem, &vha->qp_list);
+
+ mutex_unlock(&ha->mq_lock);
+
+ /* Create response queue first */
+ rsp_id = qla25xx_create_rsp_que(ha, 0, 0, 0, qpair);
+ if (!rsp_id) {
+ ql_log(ql_log_warn, vha, 0x0185,
+ "Failed to create response queue.\n");
+ goto fail_rsp;
+ }
+
+ qpair->rsp = ha->rsp_q_map[rsp_id];
+
+ /* Create request queue */
+ req_id = qla25xx_create_req_que(ha, 0, vp_idx, 0, rsp_id, qos);
+ if (!req_id) {
+ ql_log(ql_log_warn, vha, 0x0186,
+ "Failed to create request queue.\n");
+ goto fail_req;
+ }
+
+ qpair->req = ha->req_q_map[req_id];
+ qpair->rsp->req = qpair->req;
+
+ if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
+ if (ha->fw_attributes & BIT_4)
+ qpair->difdix_supported = 1;
+ }
+
+ qpair->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
+ if (!qpair->srb_mempool) {
+ ql_log(ql_log_warn, vha, 0x0191,
+ "Failed to create srb mempool for qpair %d\n",
+ qpair->id);
+ goto fail_mempool;
+ }
+
+ /* Set CPU affinity hint */
+ if (cpu_mask)
+ qla2xxx_set_affinity_hint(qpair, cpu_mask);
+
+ if (cpu_mask) {
+ cpumask_copy(&qpair->cpu_mask, cpu_mask);
+ for_each_cpu(cpu_id, cpu_mask) {
+ hint = per_cpu_ptr(vha->qps_hint, cpu_id);
+ hint->change_in_progress = 1;
+ hint->qp = qpair;
+ hint->change_in_progress = 0;
+ }
+ }
+
+ /* Mark as online */
+ qpair->online = 1;
+
+ if (!vha->flags.qpairs_available)
+ vha->flags.qpairs_available = 1;
+
+ ql_dbg(ql_dbg_multiq, vha, 0xc00d,
+ "Request/Response queue pair created, id %d\n",
+ qpair->id);
+ ql_dbg(ql_dbg_init, vha, 0x0187,
+ "Request/Response queue pair created, id %d\n",
+ qpair->id);
+ }
+ return qpair;
+
+fail_mempool:
+fail_req:
+ qla25xx_delete_rsp_que(vha, qpair->rsp);
+fail_rsp:
+ mutex_lock(&ha->mq_lock);
+ qpair->msix->in_use = 0;
+ list_del(&qpair->qp_list_elem);
+ if (list_empty(&vha->qp_list))
+ vha->flags.qpairs_available = 0;
+ if (cpu_mask) {
+ for_each_cpu(cpu_id, cpu_mask) {
+ hint = per_cpu_ptr(vha->qps_hint, cpu_id);
+ hint->change_in_progress = 1;
+ hint->qp = NULL;
+ hint->change_in_progress = 0;
+ }
+ }
+fail_msix:
+ ha->queue_pair_map[qpair_id] = NULL;
+ clear_bit(qpair_id, ha->qpair_qid_map);
+ mutex_unlock(&ha->mq_lock);
+fail_qid_map:
+ kfree(qpair);
+ return NULL;
+}
+
+int qla2xxx_delete_qpair(struct scsi_qla_host *vha, struct qla_qpair *qpair)
+{
+ int ret, cpu_id;
+ struct qla_hw_data *ha = qpair->hw;
+ struct qla_percpu_qp_hint *hint;
+
+ qpair->delete_in_progress = 1;
+ while (atomic_read(&qpair->ref_count))
+ msleep(500);
+
+ ret = qla25xx_delete_req_que(vha, qpair->req);
+ if (ret != QLA_SUCCESS)
+ goto fail;
+ ret = qla25xx_delete_rsp_que(vha, qpair->rsp);
+ if (ret != QLA_SUCCESS)
+ goto fail;
+
+ mutex_lock(&ha->mq_lock);
+ ha->queue_pair_map[qpair->id] = NULL;
+ clear_bit(qpair->id, ha->qpair_qid_map);
+ list_del(&qpair->qp_list_elem);
+ for_each_cpu(cpu_id, &qpair->cpu_mask) {
+ hint = per_cpu_ptr(vha->qps_hint, cpu_id);
+ hint->change_in_progress = 1;
+ hint->qp = NULL;
+ hint->change_in_progress = 0;
+ }
+ if (list_empty(&vha->qp_list))
+ vha->flags.qpairs_available = 0;
+ mempool_destroy(qpair->srb_mempool);
+ kfree(qpair);
+ mutex_unlock(&ha->mq_lock);
+
+ return QLA_SUCCESS;
+fail:
+ return ret;
+}
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 7478ca2..1cb0a59 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -30,7 +30,7 @@
/*
* SRB allocation cache
*/
-static struct kmem_cache *srb_cachep;
+struct kmem_cache *srb_cachep;
/*
* CT6 CTX allocation cache
@@ -143,19 +143,12 @@
"Enables iIDMA settings "
"Default is 1 - perform iIDMA. 0 - no iIDMA.");
-int ql2xmaxqueues = 1;
-module_param(ql2xmaxqueues, int, S_IRUGO);
-MODULE_PARM_DESC(ql2xmaxqueues,
- "Enables MQ settings "
- "Default is 1 for single queue. Set it to number "
- "of queues in MQ mode.");
-
-int ql2xmultique_tag;
-module_param(ql2xmultique_tag, int, S_IRUGO);
-MODULE_PARM_DESC(ql2xmultique_tag,
- "Enables CPU affinity settings for the driver "
- "Default is 0 for no affinity of request and response IO. "
- "Set it to 1 to turn on the cpu affinity.");
+int ql2xmqsupport;
+module_param(ql2xmqsupport, int, S_IRUGO);
+MODULE_PARM_DESC(ql2xmqsupport,
+ "Enable on demand multiple queue pairs support "
+ "Default is 0 for no support. "
+ "Set it to 1 to turn on mq qpair support.");
int ql2xfwloadbin;
module_param(ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
@@ -360,6 +353,25 @@ static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
"Unable to allocate memory for response queue ptrs.\n");
goto fail_rsp_map;
}
+
+ if (ql2xmqsupport) {
+ ha->queue_pair_map = kzalloc(sizeof(struct qla_qpair *)
+ * ha->max_qpairs, GFP_KERNEL);
+ if (!ha->queue_pair_map) {
+ ql_log(ql_log_fatal, vha, 0x0180,
+ "Unable to allocate memory for queue pair ptrs.\n");
+ goto fail_qpair_map;
+ }
+ ha->base_qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
+ if (ha->base_qpair == NULL) {
+ ql_log(ql_log_warn, vha, 0x0182,
+ "Failed to allocate base queue pair memory.\n");
+ goto fail_base_qpair;
+ }
+ ha->base_qpair->req = req;
+ ha->base_qpair->rsp = rsp;
+ }
+
/*
* Make sure we record at least the request and response queue zero in
* case we need to free them if part of the probe fails.
@@ -370,6 +382,11 @@ static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
set_bit(0, ha->req_qid_map);
return 1;
+fail_base_qpair:
+ kfree(ha->queue_pair_map);
+fail_qpair_map:
+ kfree(ha->rsp_q_map);
+ ha->rsp_q_map = NULL;
fail_rsp_map:
kfree(ha->req_q_map);
ha->req_q_map = NULL;
@@ -439,62 +456,6 @@ static void qla2x00_free_queues(struct qla_hw_data *ha)
ha->rsp_q_map = NULL;
}
-static int qla25xx_setup_mode(struct scsi_qla_host *vha)
-{
- uint16_t options = 0;
- int ques, req, ret;
- struct qla_hw_data *ha = vha->hw;
-
- if (!(ha->fw_attributes & BIT_6)) {
- ql_log(ql_log_warn, vha, 0x00d8,
- "Firmware is not multi-queue capable.\n");
- goto fail;
- }
- if (ql2xmultique_tag) {
- /* create a request queue for IO */
- options |= BIT_7;
- req = qla25xx_create_req_que(ha, options, 0, 0, -1,
- QLA_DEFAULT_QUE_QOS);
- if (!req) {
- ql_log(ql_log_warn, vha, 0x00e0,
- "Failed to create request queue.\n");
- goto fail;
- }
- ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1);
- vha->req = ha->req_q_map[req];
- options |= BIT_1;
- for (ques = 1; ques < ha->max_rsp_queues; ques++) {
- ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
- if (!ret) {
- ql_log(ql_log_warn, vha, 0x00e8,
- "Failed to create response queue.\n");
- goto fail2;
- }
- }
- ha->flags.cpu_affinity_enabled = 1;
- ql_dbg(ql_dbg_multiq, vha, 0xc007,
- "CPU affinity mode enabled, "
- "no. of response queues:%d no. of request queues:%d.\n",
- ha->max_rsp_queues, ha->max_req_queues);
- ql_dbg(ql_dbg_init, vha, 0x00e9,
- "CPU affinity mode enabled, "
- "no. of response queues:%d no. of request queues:%d.\n",
- ha->max_rsp_queues, ha->max_req_queues);
- }
- return 0;
-fail2:
- qla25xx_delete_queues(vha);
- destroy_workqueue(ha->wq);
- ha->wq = NULL;
- vha->req = ha->req_q_map[0];
-fail:
- ha->mqenable = 0;
- kfree(ha->req_q_map);
- kfree(ha->rsp_q_map);
- ha->max_req_queues = ha->max_rsp_queues = 1;
- return 1;
-}
-
static char *
qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
{
@@ -669,7 +630,7 @@ static int qla25xx_setup_mode(struct scsi_qla_host *vha)
qla2x00_rel_sp(sp->fcport->vha, sp);
}
-static void
+void
qla2x00_sp_compl(void *data, void *ptr, int res)
{
struct qla_hw_data *ha = (struct qla_hw_data *)data;
@@ -706,6 +667,23 @@ static int qla25xx_setup_mode(struct scsi_qla_host *vha)
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
srb_t *sp;
int rval;
+ struct qla_percpu_qp_hint *hint;
+ struct qla_qpair *qpair;
+
+ if (vha->flags.qpairs_available) {
+ hint = (struct qla_percpu_qp_hint *)this_cpu_ptr(vha->qps_hint);
+ if (hint->qp) {
+ qpair = hint->qp;
+ } else if (vha->vp_idx && vha->qpair) {
+ /* NPIV port */
+ qpair = vha->qpair;
+ } else {
+ /* TODO: Just grab the first available for now */
+ qpair = list_first_entry(&vha->qp_list,
+ struct qla_qpair, qp_list_elem);
+ }
+ return qla2xxx_mqueuecommand(host, cmd, qpair);
+ }
if (ha->flags.eeh_busy) {
if (ha->flags.pci_channel_io_perm_failure) {
@@ -1639,9 +1617,7 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
/* Determine queue resources */
ha->max_req_queues = ha->max_rsp_queues = 1;
- if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
- (ql2xmaxqueues > 1 && ql2xmultique_tag) ||
- (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
+ if (!ql2xmqsupport || (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
goto mqiobase_exit;
ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
@@ -1651,26 +1627,22 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
"MQIO Base=%p.\n", ha->mqiobase);
/* Read MSIX vector size of the board */
pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
- ha->msix_count = msix;
- /* Max queues are bounded by available msix vectors */
- /* queue 0 uses two msix vectors */
- if (ql2xmultique_tag) {
- cpus = num_online_cpus();
- ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
- (cpus + 1) : (ha->msix_count - 1);
- ha->max_req_queues = 2;
- } else if (ql2xmaxqueues > 1) {
- ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
- QLA_MQ_SIZE : ql2xmaxqueues;
- ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc008,
- "QoS mode set, max no of request queues:%d.\n",
- ha->max_req_queues);
- ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0019,
- "QoS mode set, max no of request queues:%d.\n",
- ha->max_req_queues);
- }
+ ha->msix_count = msix + 1;
+ cpus = num_online_cpus();
+ /* Max queues are bounded by available msix vectors and CPUs */
+ /* MB interrupt uses 1 vector */
+ ha->max_req_queues = (ha->msix_count - 1 > cpus) ?
+ (cpus + 1) : (ha->msix_count - 1);
+ ha->max_rsp_queues = ha->max_req_queues;
+ /* Queue pairs is the max value minus the base queue pair */
+ ha->max_qpairs = ha->max_rsp_queues - 1;
+ ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc00e,
+ "Max no of queues pairs:%d.\n", ha->max_qpairs);
+ ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0188,
+ "Max no of queues pairs:%d.\n", ha->max_qpairs);
+
ql_log_pci(ql_log_info, ha->pdev, 0x001a,
- "MSI-X vector count: %d.\n", msix);
+ "MSI-X vector count: %d.\n", ha->msix_count);
} else
ql_log_pci(ql_log_info, ha->pdev, 0x001b,
"BAR 3 not enabled.\n");
@@ -1742,26 +1714,25 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
/* Read MSIX vector size of the board */
pci_read_config_word(ha->pdev,
QLA_83XX_PCI_MSIX_CONTROL, &msix);
- ha->msix_count = msix;
+ ha->msix_count = msix + 1;
/* Max queues are bounded by available msix vectors */
/* queue 0 uses two msix vectors */
- if (ql2xmultique_tag) {
+ if (ql2xmqsupport) {
cpus = num_online_cpus();
- ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
+ /* MB interrupt uses 1 vector */
+ ha->max_req_queues = (ha->msix_count - 1 > cpus) ?
(cpus + 1) : (ha->msix_count - 1);
- ha->max_req_queues = 2;
- } else if (ql2xmaxqueues > 1) {
- ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
- QLA_MQ_SIZE : ql2xmaxqueues;
- ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc00c,
- "QoS mode set, max no of request queues:%d.\n",
- ha->max_req_queues);
- ql_dbg_pci(ql_dbg_init, ha->pdev, 0x011b,
- "QoS mode set, max no of request queues:%d.\n",
- ha->max_req_queues);
+ ha->max_rsp_queues = ha->max_req_queues;
+ /* Queue pairs is the max value minus
+ * the base queue pair */
+ ha->max_qpairs = ha->max_req_queues - 1;
+ ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc010,
+ "Max no of queues pairs:%d.\n", ha->max_qpairs);
+ ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
+ "Max no of queues pairs:%d.\n", ha->max_qpairs);
}
ql_log_pci(ql_log_info, ha->pdev, 0x011c,
- "MSI-X vector count: %d.\n", msix);
+ "MSI-X vector count: %d.\n", ha->msix_count);
} else
ql_log_pci(ql_log_info, ha->pdev, 0x011e,
"BAR 1 not enabled.\n");
@@ -1812,6 +1783,7 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
.write_optrom = qla2x00_write_optrom_data,
.get_flash_version = qla2x00_get_flash_version,
.start_scsi = qla2x00_start_scsi,
+ .start_scsi_mq = NULL,
.abort_isp = qla2x00_abort_isp,
.iospace_config = qla2x00_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
@@ -1850,6 +1822,7 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
.write_optrom = qla2x00_write_optrom_data,
.get_flash_version = qla2x00_get_flash_version,
.start_scsi = qla2x00_start_scsi,
+ .start_scsi_mq = NULL,
.abort_isp = qla2x00_abort_isp,
.iospace_config = qla2x00_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
@@ -1888,6 +1861,7 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qla24xx_start_scsi,
+ .start_scsi_mq = NULL,
.abort_isp = qla2x00_abort_isp,
.iospace_config = qla2x00_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
@@ -1926,6 +1900,7 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qla24xx_dif_start_scsi,
+ .start_scsi_mq = qla2xxx_dif_start_scsi_mq,
.abort_isp = qla2x00_abort_isp,
.iospace_config = qla2x00_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
@@ -1964,6 +1939,7 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qla24xx_dif_start_scsi,
+ .start_scsi_mq = qla2xxx_dif_start_scsi_mq,
.abort_isp = qla2x00_abort_isp,
.iospace_config = qla2x00_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
@@ -2002,6 +1978,7 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
.write_optrom = qla82xx_write_optrom_data,
.get_flash_version = qla82xx_get_flash_version,
.start_scsi = qla82xx_start_scsi,
+ .start_scsi_mq = NULL,
.abort_isp = qla82xx_abort_isp,
.iospace_config = qla82xx_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
@@ -2040,6 +2017,7 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
.write_optrom = qla8044_write_optrom_data,
.get_flash_version = qla82xx_get_flash_version,
.start_scsi = qla82xx_start_scsi,
+ .start_scsi_mq = NULL,
.abort_isp = qla8044_abort_isp,
.iospace_config = qla82xx_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
@@ -2078,6 +2056,7 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qla24xx_dif_start_scsi,
+ .start_scsi_mq = qla2xxx_dif_start_scsi_mq,
.abort_isp = qla2x00_abort_isp,
.iospace_config = qla83xx_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
@@ -2116,6 +2095,7 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qlafx00_start_scsi,
+ .start_scsi_mq = NULL,
.abort_isp = qlafx00_abort_isp,
.iospace_config = qlafx00_iospace_config,
.initialize_adapter = qlafx00_initialize_adapter,
@@ -2154,6 +2134,7 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qla24xx_dif_start_scsi,
+ .start_scsi_mq = qla2xxx_dif_start_scsi_mq,
.abort_isp = qla2x00_abort_isp,
.iospace_config = qla83xx_iospace_config,
.initialize_adapter = qla2x00_initialize_adapter,
@@ -2377,6 +2358,9 @@ static void qla2x00_destroy_mbx_wq(struct qla_hw_data *ha)
uint16_t req_length = 0, rsp_length = 0;
struct req_que *req = NULL;
struct rsp_que *rsp = NULL;
+ int cpu_id;
+ cpumask_t cpu_mask;
+
bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
sht = &qla2xxx_driver_template;
if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
@@ -2640,6 +2624,7 @@ static void qla2x00_destroy_mbx_wq(struct qla_hw_data *ha)
"Found an ISP%04X irq %d iobase 0x%p.\n",
pdev->device, pdev->irq, ha->iobase);
mutex_init(&ha->vport_lock);
+ mutex_init(&ha->mq_lock);
init_completion(&ha->mbx_cmd_comp);
complete(&ha->mbx_cmd_comp);
init_completion(&ha->mbx_intr_comp);
@@ -2719,6 +2704,16 @@ static void qla2x00_destroy_mbx_wq(struct qla_hw_data *ha)
host->transportt = qla2xxx_transport_template;
sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
+ if (ql2xmqsupport && shost_use_blk_mq(host)) {
+ /* number of hardware queues supported by blk/scsi-mq*/
+ host->nr_hw_queues = ha->max_qpairs;
+
+ ql_dbg(ql_dbg_init, base_vha, 0x0192,
+ "blk/scsi-mq enabled,HW Queue = %d.\n", host->nr_hw_queues);
+ } else
+ ql_dbg(ql_dbg_init, base_vha, 0x0193,
+ "blk/scsi-mq disabled.\n");
+
ql_dbg(ql_dbg_init, base_vha, 0x0033,
"max_id=%d this_id=%d "
"cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
@@ -2727,7 +2722,6 @@ static void qla2x00_destroy_mbx_wq(struct qla_hw_data *ha)
host->max_cmd_len, host->max_channel, host->max_lun,
host->transportt, sht->vendor_id);
-que_init:
/* Alloc arrays of request and response ring ptrs */
if (!qla2x00_alloc_queues(ha, req, rsp)) {
ql_log(ql_log_fatal, base_vha, 0x003d,
@@ -2842,10 +2836,16 @@ static void qla2x00_destroy_mbx_wq(struct qla_hw_data *ha)
base_vha->mgmt_svr_loop_id, host->sg_tablesize);
if (ha->mqenable) {
- if (qla25xx_setup_mode(base_vha)) {
- ql_log(ql_log_warn, base_vha, 0x00ec,
- "Failed to create queues, falling back to single queue mode.\n");
- goto que_init;
+ base_vha->qps_hint = alloc_percpu(struct qla_percpu_qp_hint);
+ ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1);
+ /* Create start of day qpairs for Block MQ */
+ if (shost_use_blk_mq(host)) {
+ cpumask_clear(&cpu_mask);
+ for (cpu_id = 0; cpu_id < ha->max_qpairs; cpu_id++) {
+ cpumask_set_cpu(cpu_id, &cpu_mask);
+ qla2xxx_create_qpair(base_vha, &cpu_mask, 5, 0);
+ cpumask_clear_cpu(cpu_id, &cpu_mask);
+ }
}
}
@@ -4035,6 +4035,7 @@ struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
INIT_LIST_HEAD(&vha->qla_sess_op_cmd_list);
INIT_LIST_HEAD(&vha->logo_list);
INIT_LIST_HEAD(&vha->plogi_ack_list);
+ INIT_LIST_HEAD(&vha->qp_list);
spin_lock_init(&vha->work_lock);
spin_lock_init(&vha->cmd_list_lock);
@@ -5076,6 +5077,8 @@ void qla2x00_relogin(struct scsi_qla_host *vha)
{
scsi_qla_host_t *base_vha;
struct qla_hw_data *ha;
+ uint32_t online;
+ struct qla_qpair *qpair;
ha = (struct qla_hw_data *)data;
base_vha = pci_get_drvdata(ha->pdev);
@@ -5337,6 +5340,22 @@ void qla2x00_relogin(struct scsi_qla_host *vha)
ha->isp_ops->beacon_blink(base_vha);
}
+ /* qpair online check */
+ if (test_and_clear_bit(QPAIR_ONLINE_CHECK_NEEDED,
+ &base_vha->dpc_flags)) {
+ if (ha->flags.eeh_busy ||
+ ha->flags.pci_channel_io_perm_failure)
+ online = 0;
+ else
+ online = 1;
+
+ mutex_lock(&ha->mq_lock);
+ list_for_each_entry(qpair, &base_vha->qp_list,
+ qp_list_elem)
+ qpair->online = online;
+ mutex_unlock(&ha->mq_lock);
+ }
+
if (!IS_QLAFX00(ha))
qla2x00_do_dpc_all_vps(base_vha);
@@ -5679,6 +5698,10 @@ struct fw_blob *
switch (state) {
case pci_channel_io_normal:
ha->flags.eeh_busy = 0;
+ if (ql2xmqsupport) {
+ set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
+ qla2xxx_wake_dpc(vha);
+ }
return PCI_ERS_RESULT_CAN_RECOVER;
case pci_channel_io_frozen:
ha->flags.eeh_busy = 1;
@@ -5692,10 +5715,18 @@ struct fw_blob *
pci_disable_device(pdev);
/* Return back all IOs */
qla2x00_abort_all_cmds(vha, DID_RESET << 16);
+ if (ql2xmqsupport) {
+ set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
+ qla2xxx_wake_dpc(vha);
+ }
return PCI_ERS_RESULT_NEED_RESET;
case pci_channel_io_perm_failure:
ha->flags.pci_channel_io_perm_failure = 1;
qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
+ if (ql2xmqsupport) {
+ set_bit(QPAIR_ONLINE_CHECK_NEEDED, &vha->dpc_flags);
+ qla2xxx_wake_dpc(vha);
+ }
return PCI_ERS_RESULT_DISCONNECT;
}
return PCI_ERS_RESULT_NEED_RESET;
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index bff9689..7d0723d 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -6545,6 +6545,10 @@ static void qlt_disable_vha(struct scsi_qla_host *vha)
/* Disable Full Login after LIP */
nv->host_p &= cpu_to_le32(~BIT_10);
+ /* clear BIT 15 explicitly as we have seen at least
+ * a couple of instances where this was set
+ * and this was causing the firmware to not be initialized. */
+ nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_15);
/* Enable target PRLI control */
nv->firmware_options_2 |= cpu_to_le32(BIT_14);
} else {
diff --git a/drivers/scsi/qla2xxx/qla_top.c b/drivers/scsi/qla2xxx/qla_top.c
new file mode 100644
index 0000000..d4a22ca
--- /dev/null
+++ b/drivers/scsi/qla2xxx/qla_top.c
@@ -0,0 +1,95 @@
+/*
+ * QLogic Fibre Channel HBA Driver
+ * Copyright (c) 2016 QLogic Corporation
+ *
+ * See LICENSE.qla2xxx for copyright and licensing details.
+ */
+#include "qla_def.h"
+
+
+int
+qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd, struct qla_qpair *qpair)
+{
+ scsi_qla_host_t *vha = shost_priv(host);
+ fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
+ struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
+ struct qla_hw_data *ha = vha->hw;
+ struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
+ srb_t *sp;
+ int rval;
+
+ rval = fc_remote_port_chkready(rport);
+ if (rval) {
+ cmd->result = rval;
+ ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3076,
+ "fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
+ cmd, rval);
+ goto qc24_fail_command;
+ }
+
+ if (!fcport) {
+ cmd->result = DID_NO_CONNECT << 16;
+ goto qc24_fail_command;
+ }
+
+ if (atomic_read(&fcport->state) != FCS_ONLINE) {
+ if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
+ atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
+ ql_dbg(ql_dbg_io, vha, 0x3077,
+ "Returning DNC, fcport_state=%d loop_state=%d.\n",
+ atomic_read(&fcport->state),
+ atomic_read(&base_vha->loop_state));
+ cmd->result = DID_NO_CONNECT << 16;
+ goto qc24_fail_command;
+ }
+ goto qc24_target_busy;
+ }
+
+ /*
+ * Return target busy if we've received a non-zero retry_delay_timer
+ * in a FCP_RSP.
+ */
+ if (fcport->retry_delay_timestamp == 0) {
+ /* retry delay not set */
+ } else if (time_after(jiffies, fcport->retry_delay_timestamp))
+ fcport->retry_delay_timestamp = 0;
+ else
+ goto qc24_target_busy;
+
+ sp = qla2xxx_get_qpair_sp(qpair, fcport, GFP_ATOMIC);
+ if (!sp)
+ goto qc24_host_busy;
+
+ sp->u.scmd.cmd = cmd;
+ sp->type = SRB_SCSI_CMD;
+ atomic_set(&sp->ref_count, 1);
+ CMD_SP(cmd) = (void *)sp;
+ sp->free = qla2xxx_qpair_sp_free_dma;
+ sp->done = qla2xxx_qpair_sp_compl;
+ sp->qpair = qpair;
+
+ rval = ha->isp_ops->start_scsi_mq(sp);
+ if (rval != QLA_SUCCESS) {
+ ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3078,
+ "Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
+ if (rval == QLA_INTERFACE_ERROR)
+ goto qc24_fail_command;
+ goto qc24_host_busy_free_sp;
+ }
+
+ return 0;
+
+qc24_host_busy_free_sp:
+ qla2xxx_qpair_sp_free_dma(vha, sp);
+
+qc24_host_busy:
+ return SCSI_MLQUEUE_HOST_BUSY;
+
+qc24_target_busy:
+ return SCSI_MLQUEUE_TARGET_BUSY;
+
+qc24_fail_command:
+ cmd->scsi_done(cmd);
+
+ return 0;
+}
--
1.8.3.1
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH 4/4] qla2xxx: Fix Target stack handling with Multi-queue changes
2016-11-04 16:33 [PATCH 0/4] qla2xxx: feature updates for driver himanshu.madhani
` (2 preceding siblings ...)
2016-11-04 16:33 ` [PATCH 3/4] qla2xxx: Add Block Multi Queue functionality himanshu.madhani
@ 2016-11-04 16:33 ` himanshu.madhani
3 siblings, 0 replies; 12+ messages in thread
From: himanshu.madhani @ 2016-11-04 16:33 UTC (permalink / raw)
To: martin.petersen; +Cc: linux-scsi, himanshu.madhani
From: Quinn Tran <quinn.tran@cavium.com>
- Fix race condition betweeen dpc_thread accessing MQ resources
and qla2x00_remove_one thread trying to free resource.
- Fix MQ resources out of order free. MQ interrupts needs a workqueue.
Interrupt needed to stop before the wq can be destroy.
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
---
drivers/scsi/qla2xxx/qla_def.h | 3 ++-
drivers/scsi/qla2xxx/qla_isr.c | 20 +++++++----------
drivers/scsi/qla2xxx/qla_mq.c | 2 +-
drivers/scsi/qla2xxx/qla_os.c | 51 +++++++++++++++++++++++++++++++-----------
4 files changed, 49 insertions(+), 27 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 573b95d..1621059 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2734,7 +2734,8 @@ struct isp_operations {
#define QLA_MSIX_DEFAULT 0x00
#define QLA_MSIX_RSP_Q 0x01
-#define QLA_MSIX_QPAIR_MULTIQ_RSP_Q 0x02
+#define QLA_ATIO_VECTOR 0x02
+#define QLA_MSIX_QPAIR_MULTIQ_RSP_Q 0x03
#define QLA_MIDX_DEFAULT 0
#define QLA_MIDX_RSP_Q 1
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index a185b5f9..3fe9501 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -2968,6 +2968,7 @@ struct qla_init_msix_entry {
static struct qla_init_msix_entry msix_entries[] = {
{ "qla2xxx (default)", qla24xx_msix_default },
{ "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
+ { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
{ "qla2xxx (qpair_multiq)", qla2xxx_msix_rsp_q },
};
@@ -2976,12 +2977,6 @@ struct qla_init_msix_entry {
{ "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
};
-static struct qla_init_msix_entry qla83xx_msix_entries[] = {
- { "qla2xxx (default)", qla24xx_msix_default },
- { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
- { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
-};
-
static void
qla24xx_disable_msix(struct qla_hw_data *ha)
{
@@ -3009,7 +3004,6 @@ struct qla_init_msix_entry {
qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
{
#define MIN_MSIX_COUNT 2
-#define ATIO_VECTOR 2
int i, ret;
struct msix_entry *entries;
struct qla_msix_entry *qentry;
@@ -3065,7 +3059,7 @@ struct qla_init_msix_entry {
}
/* Enable MSI-X vectors for the base queue */
- for (i = 0; i < 2; i++) {
+ for (i = 0; i < (QLA_MSIX_RSP_Q + 1); i++) {
qentry = &ha->msix_entries[i];
qentry->handle = rsp;
rsp->msix = qentry;
@@ -3082,6 +3076,7 @@ struct qla_init_msix_entry {
if (ret)
goto msix_register_fail;
qentry->have_irq = 1;
+ qentry->in_use = 1;
/* Register for CPU affinity notification. */
irq_set_affinity_notifier(qentry->vector, &qentry->irq_notify);
@@ -3101,14 +3096,15 @@ struct qla_init_msix_entry {
* queue.
*/
if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
- qentry = &ha->msix_entries[ATIO_VECTOR];
+ qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
rsp->msix = qentry;
qentry->handle = rsp;
scnprintf(qentry->name, sizeof(qentry->name),
- qla83xx_msix_entries[ATIO_VECTOR].name);
+ msix_entries[QLA_ATIO_VECTOR].name);
+ qentry->in_use = 1;
ret = request_irq(qentry->vector,
- qla83xx_msix_entries[ATIO_VECTOR].handler,
- 0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp);
+ msix_entries[QLA_ATIO_VECTOR].handler,
+ 0, msix_entries[QLA_ATIO_VECTOR].name, rsp);
qentry->have_irq = 1;
}
diff --git a/drivers/scsi/qla2xxx/qla_mq.c b/drivers/scsi/qla2xxx/qla_mq.c
index 8eb8ae1..3799853 100644
--- a/drivers/scsi/qla2xxx/qla_mq.c
+++ b/drivers/scsi/qla2xxx/qla_mq.c
@@ -131,7 +131,7 @@ struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, cpumask_var_t
qpair->vp_idx = vp_idx;
for (i = 0; i < ha->msix_count; i++) {
- msix = &ha->msix_entries[i + 2];
+ msix = &ha->msix_entries[i];
if (msix->in_use)
continue;
qpair->msix = msix;
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 1cb0a59..fa9e99a 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -434,24 +434,41 @@ static void qla2x00_free_queues(struct qla_hw_data *ha)
struct req_que *req;
struct rsp_que *rsp;
int cnt;
+ unsigned long flags;
+ spin_lock_irqsave(&ha->hardware_lock, flags);
for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
if (!test_bit(cnt, ha->req_qid_map))
continue;
req = ha->req_q_map[cnt];
+ clear_bit(cnt, ha->req_qid_map);
+ ha->req_q_map[cnt] = NULL;
+
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
qla2x00_free_req_que(ha, req);
+ spin_lock_irqsave(&ha->hardware_lock, flags);
}
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
kfree(ha->req_q_map);
ha->req_q_map = NULL;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
if (!test_bit(cnt, ha->rsp_qid_map))
continue;
rsp = ha->rsp_q_map[cnt];
+ clear_bit(cnt, ha->req_qid_map);
+ ha->rsp_q_map[cnt] = NULL;
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
qla2x00_free_rsp_que(ha, rsp);
+ spin_lock_irqsave(&ha->hardware_lock, flags);
}
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
kfree(ha->rsp_q_map);
ha->rsp_q_map = NULL;
}
@@ -1715,19 +1732,24 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
pci_read_config_word(ha->pdev,
QLA_83XX_PCI_MSIX_CONTROL, &msix);
ha->msix_count = msix + 1;
- /* Max queues are bounded by available msix vectors */
- /* queue 0 uses two msix vectors */
+ /*
+ * By default, driver uses at least two msix vectors
+ * (default & rspq)
+ */
if (ql2xmqsupport) {
cpus = num_online_cpus();
/* MB interrupt uses 1 vector */
ha->max_req_queues = (ha->msix_count - 1 > cpus) ?
(cpus + 1) : (ha->msix_count - 1);
ha->max_rsp_queues = ha->max_req_queues;
+
+ /* ATIOQ needs 1 vector. That's 1 less QPair */
+ if (QLA_TGT_MODE_ENABLED())
+ ha->max_req_queues--;
+
/* Queue pairs is the max value minus
* the base queue pair */
ha->max_qpairs = ha->max_req_queues - 1;
- ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc010,
- "Max no of queues pairs:%d.\n", ha->max_qpairs);
ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
"Max no of queues pairs:%d.\n", ha->max_qpairs);
}
@@ -1739,6 +1761,8 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
mqiobase_exit:
ha->msix_count = ha->max_rsp_queues + 1;
+ if (QLA_TGT_MODE_ENABLED())
+ ha->msix_count++;
qlt_83xx_iospace_config(ha);
@@ -3116,13 +3140,6 @@ static void qla2x00_destroy_mbx_wq(struct qla_hw_data *ha)
static void
qla2x00_destroy_deferred_work(struct qla_hw_data *ha)
{
- /* Flush the work queue and remove it */
- if (ha->wq) {
- flush_workqueue(ha->wq);
- destroy_workqueue(ha->wq);
- ha->wq = NULL;
- }
-
/* Cancel all work and destroy DPC workqueues */
if (ha->dpc_lp_wq) {
cancel_work_sync(&ha->idc_aen);
@@ -3318,9 +3335,17 @@ static void qla2x00_destroy_mbx_wq(struct qla_hw_data *ha)
ha->isp_ops->disable_intrs(ha);
}
+ qla2x00_free_fcports(vha);
+
qla2x00_free_irqs(vha);
- qla2x00_free_fcports(vha);
+ /* Flush the work queue and remove it */
+ if (ha->wq) {
+ flush_workqueue(ha->wq);
+ destroy_workqueue(ha->wq);
+ ha->wq = NULL;
+ }
+
qla2x00_mem_free(ha);
@@ -5042,8 +5067,8 @@ void qla2x00_relogin(struct scsi_qla_host *vha)
base_vha->flags.init_done = 0;
qla25xx_delete_queues(base_vha);
- qla2x00_free_irqs(base_vha);
qla2x00_free_fcports(base_vha);
+ qla2x00_free_irqs(base_vha);
qla2x00_mem_free(ha);
qla82xx_md_free(base_vha);
qla2x00_free_queues(ha);
--
1.8.3.1
^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [PATCH 3/4] qla2xxx: Add Block Multi Queue functionality.
2016-11-04 16:33 ` [PATCH 3/4] qla2xxx: Add Block Multi Queue functionality himanshu.madhani
@ 2016-11-04 23:00 ` Christoph Hellwig
2016-11-05 2:08 ` Madhani, Himanshu
2016-11-04 23:15 ` kbuild test robot
2016-11-07 16:43 ` Ewan D. Milne
2 siblings, 1 reply; 12+ messages in thread
From: Christoph Hellwig @ 2016-11-04 23:00 UTC (permalink / raw)
To: himanshu.madhani; +Cc: martin.petersen, linux-scsi, himanshu.madhani
On Fri, Nov 04, 2016 at 09:33:32AM -0700, himanshu.madhani@cavium.com wrote:
> From: Michael Hernandez <michael.hernandez@cavium.com>
>
> Tell the SCSI layer how many hardware queues we have based on the
> number of max queue pairs created. The number of max queue pairs
> created will depend on number of MSI X vector count or number of CPU's
> in a system.
Anf for that you must use pci_alloc_irq_vectors with the
PCI_IRQ_AFFINITY flag for all new code. Please rework that code to use
that.
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH 3/4] qla2xxx: Add Block Multi Queue functionality.
2016-11-04 16:33 ` [PATCH 3/4] qla2xxx: Add Block Multi Queue functionality himanshu.madhani
2016-11-04 23:00 ` Christoph Hellwig
@ 2016-11-04 23:15 ` kbuild test robot
2016-11-07 16:43 ` Ewan D. Milne
2 siblings, 0 replies; 12+ messages in thread
From: kbuild test robot @ 2016-11-04 23:15 UTC (permalink / raw)
To: himanshu.madhani
Cc: kbuild-all, martin.petersen, linux-scsi, himanshu.madhani
[-- Attachment #1: Type: text/plain, Size: 2857 bytes --]
Hi Michael,
[auto build test ERROR on scsi/for-next]
[also build test ERROR on v4.9-rc3 next-20161028]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]
url: https://github.com/0day-ci/linux/commits/himanshu-madhani-cavium-com/qla2xxx-feature-updates-for-driver/20161105-054615
base: https://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git for-next
config: x86_64-acpi-redef (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
In file included from drivers/scsi/qla2xxx/qla_def.h:3934:0,
from drivers/scsi/qla2xxx/qla_bottom.c:7:
drivers/scsi/qla2xxx/qla_bottom.c: In function 'qla2xxx_start_scsi_mq':
>> drivers/scsi/qla2xxx/qla_gbl.h:225:20: error: inlining failed in call to always_inline 'qla24xx_build_scsi_iocbs': function body not available
extern inline void qla24xx_build_scsi_iocbs(srb_t *, struct cmd_type_7 *,
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qla2xxx/qla_bottom.c:123:2: note: called from here
qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/scsi/qla2xxx/qla_def.h:3934:0,
from drivers/scsi/qla2xxx/qla_bottom.c:7:
>> drivers/scsi/qla2xxx/qla_gbl.h:225:20: error: inlining failed in call to always_inline 'qla24xx_build_scsi_iocbs': function body not available
extern inline void qla24xx_build_scsi_iocbs(srb_t *, struct cmd_type_7 *,
^~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/qla2xxx/qla_bottom.c:123:2: note: called from here
qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/qla24xx_build_scsi_iocbs +225 drivers/scsi/qla2xxx/qla_gbl.h
219 */
220
221 extern uint16_t qla2x00_calc_iocbs_32(uint16_t);
222 extern uint16_t qla2x00_calc_iocbs_64(uint16_t);
223 extern void qla2x00_build_scsi_iocbs_32(srb_t *, cmd_entry_t *, uint16_t);
224 extern void qla2x00_build_scsi_iocbs_64(srb_t *, cmd_entry_t *, uint16_t);
> 225 extern inline void qla24xx_build_scsi_iocbs(srb_t *, struct cmd_type_7 *,
226 uint16_t, struct req_que *);
227 extern int qla2x00_start_scsi(srb_t *sp);
228 extern int qla24xx_start_scsi(srb_t *sp);
---
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: 28639 bytes --]
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH 3/4] qla2xxx: Add Block Multi Queue functionality.
2016-11-04 23:00 ` Christoph Hellwig
@ 2016-11-05 2:08 ` Madhani, Himanshu
0 siblings, 0 replies; 12+ messages in thread
From: Madhani, Himanshu @ 2016-11-05 2:08 UTC (permalink / raw)
To: Christoph Hellwig; +Cc: martin.petersen, linux-scsi, himanshu.madhani
Hi Christoph,
On 11/4/16, 4:00 PM, "Christoph Hellwig" <hch@infradead.org> wrote:
>On Fri, Nov 04, 2016 at 09:33:32AM -0700, himanshu.madhani@cavium.com wrote:
>> From: Michael Hernandez <michael.hernandez@cavium.com>
>>
>> Tell the SCSI layer how many hardware queues we have based on the
>> number of max queue pairs created. The number of max queue pairs
>> created will depend on number of MSI X vector count or number of CPU's
>> in a system.
>
>Anf for that you must use pci_alloc_irq_vectors with the
>PCI_IRQ_AFFINITY flag for all new code. Please rework that code to use
>that.
Thanks for the input. We will rework this patch and resubmit the series.
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH 2/4] qla2xxx: Fix mailbox command timeout due to starvation
2016-11-04 16:33 ` [PATCH 2/4] qla2xxx: Fix mailbox command timeout due to starvation himanshu.madhani
@ 2016-11-07 15:53 ` Ewan D. Milne
2016-11-08 17:40 ` Madhani, Himanshu
0 siblings, 1 reply; 12+ messages in thread
From: Ewan D. Milne @ 2016-11-07 15:53 UTC (permalink / raw)
To: himanshu.madhani; +Cc: martin.petersen, linux-scsi, himanshu.madhani
On Fri, 2016-11-04 at 09:33 -0700, himanshu.madhani@cavium.com wrote:
...
> @@ -2349,6 +2349,17 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
> return atomic_read(&vha->loop_state) == LOOP_READY;
> }
>
> +static void qla2x00_destroy_mbx_wq(struct qla_hw_data *ha)
> +{
> + struct workqueue_struct *wq = ha->mbx_wq;
> +
> + if (wq) {
> + ha->mbx_wq = NULL;
> + flush_workqueue(wq);
> + destroy_workqueue(wq);
> + }
> +}
> +
> /*
> * PCI driver interface
> */
There is already a function qla2x00_destroy_deferred_work() that
destroys 3 other workqueues.
...
> @@ -3059,6 +3079,8 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
>
> qla2x00_free_fw_dump(ha);
>
> + qla2x00_destroy_mbx_wq(ha);
> +
> pci_disable_pcie_error_reporting(pdev);
> pci_disable_device(pdev);
> }
This code path (pci_driver->shutdown) does not appear to destroy the
other workqueues created by the driver. ???
> @@ -5011,6 +5033,8 @@ void qla2x00_relogin(struct scsi_qla_host *vha)
> */
> qla2x00_free_sysfs_attr(base_vha, false);
>
> + qla2x00_destroy_mbx_wq(ha);
> +
> fc_remove_host(base_vha->host);
>
> scsi_remove_host(base_vha->host);
See above.
-Ewan
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH 3/4] qla2xxx: Add Block Multi Queue functionality.
2016-11-04 16:33 ` [PATCH 3/4] qla2xxx: Add Block Multi Queue functionality himanshu.madhani
2016-11-04 23:00 ` Christoph Hellwig
2016-11-04 23:15 ` kbuild test robot
@ 2016-11-07 16:43 ` Ewan D. Milne
2016-11-08 17:37 ` Madhani, Himanshu
2 siblings, 1 reply; 12+ messages in thread
From: Ewan D. Milne @ 2016-11-07 16:43 UTC (permalink / raw)
To: himanshu.madhani; +Cc: martin.petersen, linux-scsi, himanshu.madhani
On Fri, 2016-11-04 at 09:33 -0700, himanshu.madhani@cavium.com wrote:
> From: Michael Hernandez <michael.hernandez@cavium.com>
>
> Tell the SCSI layer how many hardware queues we have based on the
> number of max queue pairs created. The number of max queue pairs
> created will depend on number of MSI X vector count or number of CPU's
> in a system.
>
> This feature can be turned on via CONFIG_SCSI_MQ_DEFAULT or passing
> scsi_mod.use_blk_mq=Y as a parameter to the kernel
> Queue pair creation depend on module parameter "ql2xmqsupport", which
> need to be enabled to create queue pair.
>
I don't understand this change at all. Setting ->nr_hw_queues causes
the block layer to allocate a number of queues for that Scsi_Host
object, but it does not appear as if this code uses that functionality.
There is nothing in the patch that examines the tag to see which queue
the request came in on, in order to map it to a hardware queue.
Instead, this patch seems to be reworking the mechanism involved in
NPIV vport creation, which creates an entirely separate Scsi_Host
object. The driver was already creating separate request queues to
the card for vports, so what does this have to do with Block-MQ?
-Ewan
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH 3/4] qla2xxx: Add Block Multi Queue functionality.
2016-11-07 16:43 ` Ewan D. Milne
@ 2016-11-08 17:37 ` Madhani, Himanshu
0 siblings, 0 replies; 12+ messages in thread
From: Madhani, Himanshu @ 2016-11-08 17:37 UTC (permalink / raw)
To: emilne; +Cc: martin.petersen, linux-scsi, himanshu.madhani
Hi Ewan,
On 11/7/16, 8:43 AM, "Ewan D. Milne" <emilne@redhat.com> wrote:
>On Fri, 2016-11-04 at 09:33 -0700, himanshu.madhani@cavium.com wrote:
>> From: Michael Hernandez <michael.hernandez@cavium.com>
>>
>> Tell the SCSI layer how many hardware queues we have based on the
>> number of max queue pairs created. The number of max queue pairs
>> created will depend on number of MSI X vector count or number of CPU's
>> in a system.
>>
>> This feature can be turned on via CONFIG_SCSI_MQ_DEFAULT or passing
>> scsi_mod.use_blk_mq=Y as a parameter to the kernel
>> Queue pair creation depend on module parameter "ql2xmqsupport", which
>> need to be enabled to create queue pair.
>>
>
>I don't understand this change at all. Setting ->nr_hw_queues causes
>the block layer to allocate a number of queues for that Scsi_Host
>object, but it does not appear as if this code uses that functionality.
>There is nothing in the patch that examines the tag to see which queue
>the request came in on, in order to map it to a hardware queue.
>
>Instead, this patch seems to be reworking the mechanism involved in
>NPIV vport creation, which creates an entirely separate Scsi_Host
>object. The driver was already creating separate request queues to
>the card for vports, so what does this have to do with Block-MQ?
Thanks for the review comments. We are reworking patch series to address
your review comments.
>
>-Ewan
>
>
Thanks,
Himanshu
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH 2/4] qla2xxx: Fix mailbox command timeout due to starvation
2016-11-07 15:53 ` Ewan D. Milne
@ 2016-11-08 17:40 ` Madhani, Himanshu
0 siblings, 0 replies; 12+ messages in thread
From: Madhani, Himanshu @ 2016-11-08 17:40 UTC (permalink / raw)
To: emilne; +Cc: martin.petersen, linux-scsi, himanshu.madhani
Hi Ewan,
On 11/7/16, 7:53 AM, "Ewan D. Milne" <emilne@redhat.com> wrote:
>On Fri, 2016-11-04 at 09:33 -0700, himanshu.madhani@cavium.com wrote:
>...
>> @@ -2349,6 +2349,17 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
>> return atomic_read(&vha->loop_state) == LOOP_READY;
>> }
>>
>> +static void qla2x00_destroy_mbx_wq(struct qla_hw_data *ha)
>> +{
>> + struct workqueue_struct *wq = ha->mbx_wq;
>> +
>> + if (wq) {
>> + ha->mbx_wq = NULL;
>> + flush_workqueue(wq);
>> + destroy_workqueue(wq);
>> + }
>> +}
>> +
>> /*
>> * PCI driver interface
>> */
>
>There is already a function qla2x00_destroy_deferred_work() that
>destroys 3 other workqueues.
>
>...
>
>> @@ -3059,6 +3079,8 @@ uint32_t qla2x00_isp_reg_stat(struct qla_hw_data *ha)
>>
>> qla2x00_free_fw_dump(ha);
>>
>> + qla2x00_destroy_mbx_wq(ha);
>> +
>> pci_disable_pcie_error_reporting(pdev);
>> pci_disable_device(pdev);
>> }
>
>This code path (pci_driver->shutdown) does not appear to destroy the
>other workqueues created by the driver. ???
>
>> @@ -5011,6 +5033,8 @@ void qla2x00_relogin(struct scsi_qla_host *vha)
>> */
>> qla2x00_free_sysfs_attr(base_vha, false);
>>
>> + qla2x00_destroy_mbx_wq(ha);
>> +
>> fc_remove_host(base_vha->host);
>>
>> scsi_remove_host(base_vha->host);
>
>See above.
Ack. will fix up patch to address these comments.
>
>-Ewan
Thanks,
Himanshu
^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2016-11-08 19:14 UTC | newest]
Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-11-04 16:33 [PATCH 0/4] qla2xxx: feature updates for driver himanshu.madhani
2016-11-04 16:33 ` [PATCH 1/4] qla2xxx: Only allow operational MBX to proceed during RESET himanshu.madhani
2016-11-04 16:33 ` [PATCH 2/4] qla2xxx: Fix mailbox command timeout due to starvation himanshu.madhani
2016-11-07 15:53 ` Ewan D. Milne
2016-11-08 17:40 ` Madhani, Himanshu
2016-11-04 16:33 ` [PATCH 3/4] qla2xxx: Add Block Multi Queue functionality himanshu.madhani
2016-11-04 23:00 ` Christoph Hellwig
2016-11-05 2:08 ` Madhani, Himanshu
2016-11-04 23:15 ` kbuild test robot
2016-11-07 16:43 ` Ewan D. Milne
2016-11-08 17:37 ` Madhani, Himanshu
2016-11-04 16:33 ` [PATCH 4/4] qla2xxx: Fix Target stack handling with Multi-queue changes himanshu.madhani
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