Commit e326d22a authored by Quinn Tran's avatar Quinn Tran Committed by Martin K. Petersen

scsi: qla2xxx: Enable Target Multi Queue

Enable Multi Queue for Target mode. At Initiator LUN scan time, each LUN
is assign to a QPair. Each QPair is affinitize to certain CPU. When new
cmd arrives from the wire, the lunid is used to search for qpair. The
qpair's affinitized cpuid will be used to queue up the work element.
Signed-off-by: default avatarQuinn Tran <quinn.tran@cavium.com>
Signed-off-by: default avatarHimanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 82de802a
...@@ -3245,7 +3245,7 @@ struct req_que { ...@@ -3245,7 +3245,7 @@ struct req_que {
struct qla_qpair { struct qla_qpair {
spinlock_t qp_lock; spinlock_t qp_lock;
atomic_t ref_count; atomic_t ref_count;
uint32_t lun_cnt;
/* /*
* For qpair 0, qp_lock_ptr will point at hardware_lock due to * For qpair 0, qp_lock_ptr will point at hardware_lock due to
* legacy code. For other Qpair(s), it will point at qp_lock. * legacy code. For other Qpair(s), it will point at qp_lock.
...@@ -3275,6 +3275,7 @@ struct qla_qpair { ...@@ -3275,6 +3275,7 @@ struct qla_qpair {
struct qla_hw_data *hw; struct qla_hw_data *hw;
struct work_struct q_work; struct work_struct q_work;
struct list_head qp_list_elem; /* vha->qp_list */ struct list_head qp_list_elem; /* vha->qp_list */
struct list_head hints_list;
uint16_t cpuid; uint16_t cpuid;
}; };
......
...@@ -7623,6 +7623,7 @@ struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos, ...@@ -7623,6 +7623,7 @@ struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos,
ha->queue_pair_map[qpair_id] = qpair; ha->queue_pair_map[qpair_id] = qpair;
qpair->id = qpair_id; qpair->id = qpair_id;
qpair->vp_idx = vp_idx; qpair->vp_idx = vp_idx;
INIT_LIST_HEAD(&qpair->hints_list);
for (i = 0; i < ha->msix_count; i++) { for (i = 0; i < ha->msix_count; i++) {
msix = &ha->msix_entries[i]; msix = &ha->msix_entries[i];
...@@ -7666,6 +7667,8 @@ struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos, ...@@ -7666,6 +7667,8 @@ struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos,
qpair->req = ha->req_q_map[req_id]; qpair->req = ha->req_q_map[req_id];
qpair->rsp->req = qpair->req; qpair->rsp->req = qpair->req;
qpair->rsp->qpair = qpair; qpair->rsp->qpair = qpair;
/* init qpair to this cpu. Will adjust at run time. */
qla_cpu_update(qpair, smp_processor_id());
if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) { if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
if (ha->fw_attributes & BIT_4) if (ha->fw_attributes & BIT_4)
......
...@@ -324,3 +324,31 @@ qla_is_exch_offld_enabled(struct scsi_qla_host *vha) ...@@ -324,3 +324,31 @@ qla_is_exch_offld_enabled(struct scsi_qla_host *vha)
else else
return false; return false;
} }
static inline void
qla_cpu_update(struct qla_qpair *qpair, uint16_t cpuid)
{
qpair->cpuid = cpuid;
if (!list_empty(&qpair->hints_list)) {
struct qla_qpair_hint *h;
list_for_each_entry(h, &qpair->hints_list, hint_elem)
h->cpuid = qpair->cpuid;
}
}
static inline struct qla_qpair_hint *
qla_qpair_to_hint(struct qla_tgt *tgt, struct qla_qpair *qpair)
{
struct qla_qpair_hint *h;
u16 i;
for (i = 0; i < tgt->ha->max_qpairs + 1; i++) {
h = &tgt->qphints[i];
if (h->qpair == qpair)
return h;
}
return NULL;
}
...@@ -9,6 +9,7 @@ ...@@ -9,6 +9,7 @@
#include <linux/delay.h> #include <linux/delay.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/cpu.h>
#include <linux/t10-pi.h> #include <linux/t10-pi.h>
#include <scsi/scsi_tcq.h> #include <scsi/scsi_tcq.h>
#include <scsi/scsi_bsg_fc.h> #include <scsi/scsi_bsg_fc.h>
...@@ -2761,6 +2762,9 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha, ...@@ -2761,6 +2762,9 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha,
if (!ha->flags.fw_started) if (!ha->flags.fw_started)
return; return;
if (rsp->qpair->cpuid != smp_processor_id())
qla_cpu_update(rsp->qpair, smp_processor_id());
while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
pkt = (struct sts_entry_24xx *)rsp->ring_ptr; pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
...@@ -3196,10 +3200,10 @@ struct qla_init_msix_entry { ...@@ -3196,10 +3200,10 @@ struct qla_init_msix_entry {
}; };
static const struct qla_init_msix_entry msix_entries[] = { static const struct qla_init_msix_entry msix_entries[] = {
{ "qla2xxx (default)", qla24xx_msix_default }, { "default", qla24xx_msix_default },
{ "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, { "rsp_q", qla24xx_msix_rsp_q },
{ "qla2xxx (atio_q)", qla83xx_msix_atio_q }, { "atio_q", qla83xx_msix_atio_q },
{ "qla2xxx (qpair_multiq)", qla2xxx_msix_rsp_q }, { "qpair_multiq", qla2xxx_msix_rsp_q },
}; };
static const struct qla_init_msix_entry qla82xx_msix_entries[] = { static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
...@@ -3279,7 +3283,7 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) ...@@ -3279,7 +3283,7 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
qentry->handle = rsp; qentry->handle = rsp;
rsp->msix = qentry; rsp->msix = qentry;
scnprintf(qentry->name, sizeof(qentry->name), scnprintf(qentry->name, sizeof(qentry->name),
"%s", msix_entries[i].name); "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
if (IS_P3P_TYPE(ha)) if (IS_P3P_TYPE(ha))
ret = request_irq(qentry->vector, ret = request_irq(qentry->vector,
qla82xx_msix_entries[i].handler, qla82xx_msix_entries[i].handler,
...@@ -3287,7 +3291,7 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) ...@@ -3287,7 +3291,7 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
else else
ret = request_irq(qentry->vector, ret = request_irq(qentry->vector,
msix_entries[i].handler, msix_entries[i].handler,
0, msix_entries[i].name, rsp); 0, qentry->name, rsp);
if (ret) if (ret)
goto msix_register_fail; goto msix_register_fail;
qentry->have_irq = 1; qentry->have_irq = 1;
...@@ -3303,11 +3307,12 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) ...@@ -3303,11 +3307,12 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
rsp->msix = qentry; rsp->msix = qentry;
qentry->handle = rsp; qentry->handle = rsp;
scnprintf(qentry->name, sizeof(qentry->name), scnprintf(qentry->name, sizeof(qentry->name),
"%s", msix_entries[QLA_ATIO_VECTOR].name); "qla2xxx%lu_%s", vha->host_no,
msix_entries[QLA_ATIO_VECTOR].name);
qentry->in_use = 1; qentry->in_use = 1;
ret = request_irq(qentry->vector, ret = request_irq(qentry->vector,
msix_entries[QLA_ATIO_VECTOR].handler, msix_entries[QLA_ATIO_VECTOR].handler,
0, msix_entries[QLA_ATIO_VECTOR].name, rsp); 0, qentry->name, rsp);
qentry->have_irq = 1; qentry->have_irq = 1;
} }
......
...@@ -371,30 +371,32 @@ static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req, ...@@ -371,30 +371,32 @@ static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
goto fail_rsp_map; goto fail_rsp_map;
} }
if (ql2xmqsupport && ha->max_qpairs) {
ha->queue_pair_map = kcalloc(ha->max_qpairs, sizeof(struct qla_qpair *),
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); ha->base_qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
if (ha->base_qpair == NULL) { if (ha->base_qpair == NULL) {
ql_log(ql_log_warn, vha, 0x00e0, ql_log(ql_log_warn, vha, 0x00e0,
"Failed to allocate base queue pair memory.\n"); "Failed to allocate base queue pair memory.\n");
goto fail_base_qpair; goto fail_base_qpair;
} }
ha->base_qpair->req = req;
ha->base_qpair->rsp = rsp;
}
rsp->qpair = ha->base_qpair; rsp->qpair = ha->base_qpair;
rsp->req = req; rsp->req = req;
ha->base_qpair->req = req;
ha->base_qpair->rsp = rsp;
ha->base_qpair->vha = vha; ha->base_qpair->vha = vha;
ha->base_qpair->qp_lock_ptr = &ha->hardware_lock; ha->base_qpair->qp_lock_ptr = &ha->hardware_lock;
ha->queue_pair_map[0] = ha->base_qpair; ha->base_qpair->msix = &ha->msix_entries[QLA_MSIX_RSP_Q];
set_bit(0, ha->qpair_qid_map); INIT_LIST_HEAD(&ha->base_qpair->hints_list);
qla_cpu_update(rsp->qpair, smp_processor_id());
if (ql2xmqsupport && ha->max_qpairs) {
ha->queue_pair_map = kcalloc(ha->max_qpairs, sizeof(struct qla_qpair *),
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;
}
}
/* /*
* Make sure we record at least the request and response queue zero in * Make sure we record at least the request and response queue zero in
...@@ -2009,7 +2011,7 @@ qla83xx_iospace_config(struct qla_hw_data *ha) ...@@ -2009,7 +2011,7 @@ qla83xx_iospace_config(struct qla_hw_data *ha)
/* Read MSIX vector size of the board */ /* Read MSIX vector size of the board */
pci_read_config_word(ha->pdev, pci_read_config_word(ha->pdev,
QLA_83XX_PCI_MSIX_CONTROL, &msix); QLA_83XX_PCI_MSIX_CONTROL, &msix);
ha->msix_count = msix + 1; ha->msix_count = (msix & PCI_MSIX_FLAGS_QSIZE) + 1;
/* /*
* By default, driver uses at least two msix vectors * By default, driver uses at least two msix vectors
* (default & rspq) * (default & rspq)
...@@ -3125,12 +3127,26 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) ...@@ -3125,12 +3127,26 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
host->can_queue, base_vha->req, host->can_queue, base_vha->req,
base_vha->mgmt_svr_loop_id, host->sg_tablesize); base_vha->mgmt_svr_loop_id, host->sg_tablesize);
if (ha->mqenable && qla_ini_mode_enabled(base_vha)) { if (ha->mqenable) {
bool mq = false;
bool startit = false;
ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1); ha->wq = alloc_workqueue("qla2xxx_wq", WQ_MEM_RECLAIM, 1);
if (QLA_TGT_MODE_ENABLED()) {
mq = true;
startit = false;
}
if ((ql2x_ini_mode == QLA2XXX_INI_MODE_ENABLED) &&
shost_use_blk_mq(host)) {
mq = true;
startit = true;
}
if (mq) {
/* Create start of day qpairs for Block MQ */ /* Create start of day qpairs for Block MQ */
if (shost_use_blk_mq(host)) {
for (i = 0; i < ha->max_qpairs; i++) for (i = 0; i < ha->max_qpairs; i++)
qla2xxx_create_qpair(base_vha, 5, 0, true); qla2xxx_create_qpair(base_vha, 5, 0, startit);
} }
} }
......
...@@ -1515,6 +1515,10 @@ EXPORT_SYMBOL(qlt_stop_phase2); ...@@ -1515,6 +1515,10 @@ EXPORT_SYMBOL(qlt_stop_phase2);
static void qlt_release(struct qla_tgt *tgt) static void qlt_release(struct qla_tgt *tgt)
{ {
scsi_qla_host_t *vha = tgt->vha; scsi_qla_host_t *vha = tgt->vha;
void *node;
u64 key = 0;
u16 i;
struct qla_qpair_hint *h;
if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stop && if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stop &&
!tgt->tgt_stopped) !tgt->tgt_stopped)
...@@ -1523,6 +1527,24 @@ static void qlt_release(struct qla_tgt *tgt) ...@@ -1523,6 +1527,24 @@ static void qlt_release(struct qla_tgt *tgt)
if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stopped) if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stopped)
qlt_stop_phase2(tgt); qlt_stop_phase2(tgt);
for (i = 0; i < vha->hw->max_qpairs + 1; i++) {
unsigned long flags;
h = &tgt->qphints[i];
if (h->qpair) {
spin_lock_irqsave(h->qpair->qp_lock_ptr, flags);
list_del(&h->hint_elem);
spin_unlock_irqrestore(h->qpair->qp_lock_ptr, flags);
h->qpair = NULL;
}
}
kfree(tgt->qphints);
btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
btree_remove64(&tgt->lun_qpair_map, key);
btree_destroy64(&tgt->lun_qpair_map);
vha->vha_tgt.qla_tgt = NULL; vha->vha_tgt.qla_tgt = NULL;
ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00d, ql_dbg(ql_dbg_tgt_mgt, vha, 0xf00d,
...@@ -2354,9 +2376,8 @@ static int qlt_24xx_build_ctio_pkt(struct qla_qpair *qpair, ...@@ -2354,9 +2376,8 @@ static int qlt_24xx_build_ctio_pkt(struct qla_qpair *qpair,
* the session and, so, the command. * the session and, so, the command.
*/ */
return -EAGAIN; return -EAGAIN;
} else { } else
vha->req->outstanding_cmds[h] = (srb_t *)prm->cmd; qpair->req->outstanding_cmds[h] = (srb_t *)prm->cmd;
}
pkt->handle = MAKE_HANDLE(qpair->req->id, h); pkt->handle = MAKE_HANDLE(qpair->req->id, h);
pkt->handle |= CTIO_COMPLETION_HANDLE_MARK; pkt->handle |= CTIO_COMPLETION_HANDLE_MARK;
...@@ -3976,8 +3997,6 @@ static void __qlt_do_work(struct qla_tgt_cmd *cmd) ...@@ -3976,8 +3997,6 @@ static void __qlt_do_work(struct qla_tgt_cmd *cmd)
spin_lock_init(&cmd->cmd_lock); spin_lock_init(&cmd->cmd_lock);
cdb = &atio->u.isp24.fcp_cmnd.cdb[0]; cdb = &atio->u.isp24.fcp_cmnd.cdb[0];
cmd->se_cmd.tag = atio->u.isp24.exchange_addr; cmd->se_cmd.tag = atio->u.isp24.exchange_addr;
cmd->unpacked_lun = scsilun_to_int(
(struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun);
if (atio->u.isp24.fcp_cmnd.rddata && if (atio->u.isp24.fcp_cmnd.rddata &&
atio->u.isp24.fcp_cmnd.wrdata) { atio->u.isp24.fcp_cmnd.wrdata) {
...@@ -4040,6 +4059,85 @@ static void qlt_do_work(struct work_struct *work) ...@@ -4040,6 +4059,85 @@ static void qlt_do_work(struct work_struct *work)
__qlt_do_work(cmd); __qlt_do_work(cmd);
} }
static void qlt_assign_qpair(struct scsi_qla_host *vha,
struct qla_tgt_cmd *cmd)
{
struct qla_qpair *qpair, *qp;
struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
struct qla_qpair_hint *h;
if (vha->flags.qpairs_available) {
h = btree_lookup64(&tgt->lun_qpair_map, cmd->unpacked_lun);
if (unlikely(!h)) {
/* spread lun to qpair ratio evently */
int lcnt = 0, rc;
struct scsi_qla_host *base_vha =
pci_get_drvdata(vha->hw->pdev);
qpair = vha->hw->base_qpair;
if (qpair->lun_cnt == 0) {
qpair->lun_cnt++;
h = qla_qpair_to_hint(tgt, qpair);
BUG_ON(!h);
rc = btree_insert64(&tgt->lun_qpair_map,
cmd->unpacked_lun, h, GFP_ATOMIC);
if (rc) {
qpair->lun_cnt--;
ql_log(ql_log_info, vha, 0xd037,
"Unable to insert lun %llx into lun_qpair_map\n",
cmd->unpacked_lun);
}
goto out;
} else {
lcnt = qpair->lun_cnt;
}
h = NULL;
list_for_each_entry(qp, &base_vha->qp_list,
qp_list_elem) {
if (qp->lun_cnt == 0) {
qp->lun_cnt++;
h = qla_qpair_to_hint(tgt, qp);
BUG_ON(!h);
rc = btree_insert64(&tgt->lun_qpair_map,
cmd->unpacked_lun, h, GFP_ATOMIC);
if (rc) {
qp->lun_cnt--;
ql_log(ql_log_info, vha, 0xd038,
"Unable to insert lun %llx into lun_qpair_map\n",
cmd->unpacked_lun);
}
qpair = qp;
goto out;
} else {
if (qp->lun_cnt < lcnt) {
lcnt = qp->lun_cnt;
qpair = qp;
continue;
}
}
}
BUG_ON(!qpair);
qpair->lun_cnt++;
h = qla_qpair_to_hint(tgt, qpair);
BUG_ON(!h);
rc = btree_insert64(&tgt->lun_qpair_map,
cmd->unpacked_lun, h, GFP_ATOMIC);
if (rc) {
qpair->lun_cnt--;
ql_log(ql_log_info, vha, 0xd039,
"Unable to insert lun %llx into lun_qpair_map\n",
cmd->unpacked_lun);
}
}
} else {
h = &tgt->qphints[0];
}
out:
cmd->qpair = h->qpair;
cmd->se_cmd.cpuid = h->cpuid;
}
static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha, static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha,
struct fc_port *sess, struct fc_port *sess,
struct atio_from_isp *atio) struct atio_from_isp *atio)
...@@ -4069,8 +4167,9 @@ static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha, ...@@ -4069,8 +4167,9 @@ static struct qla_tgt_cmd *qlt_get_tag(scsi_qla_host_t *vha,
cmd->jiffies_at_alloc = get_jiffies_64(); cmd->jiffies_at_alloc = get_jiffies_64();
cmd->reset_count = vha->hw->chip_reset; cmd->reset_count = vha->hw->chip_reset;
cmd->qpair = vha->hw->base_qpair; cmd->unpacked_lun = scsilun_to_int(
cmd->se_cmd.cpuid = cmd->qpair->cpuid; (struct scsi_lun *)&atio->u.isp24.fcp_cmnd.lun);
qlt_assign_qpair(vha, cmd);
return cmd; return cmd;
} }
...@@ -4218,7 +4317,9 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha, ...@@ -4218,7 +4317,9 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha,
spin_unlock_irqrestore(&vha->cmd_list_lock, flags); spin_unlock_irqrestore(&vha->cmd_list_lock, flags);
INIT_WORK(&cmd->work, qlt_do_work); INIT_WORK(&cmd->work, qlt_do_work);
if (ha->msix_count) { if (vha->flags.qpairs_available) {
queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, &cmd->work);
} else if (ha->msix_count) {
if (cmd->atio.u.isp24.fcp_cmnd.rddata) if (cmd->atio.u.isp24.fcp_cmnd.rddata)
queue_work_on(smp_processor_id(), qla_tgt_wq, queue_work_on(smp_processor_id(), qla_tgt_wq,
&cmd->work); &cmd->work);
...@@ -5944,6 +6045,8 @@ static void qlt_sess_work_fn(struct work_struct *work) ...@@ -5944,6 +6045,8 @@ static void qlt_sess_work_fn(struct work_struct *work)
int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha) int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha)
{ {
struct qla_tgt *tgt; struct qla_tgt *tgt;
int rc, i;
struct qla_qpair_hint *h;
if (!QLA_TGT_MODE_ENABLED()) if (!QLA_TGT_MODE_ENABLED())
return 0; return 0;
...@@ -5966,9 +6069,47 @@ int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha) ...@@ -5966,9 +6069,47 @@ int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha)
return -ENOMEM; return -ENOMEM;
} }
tgt->qphints = kzalloc((ha->max_qpairs + 1) *
sizeof(struct qla_qpair_hint), GFP_KERNEL);
if (!tgt->qphints) {
kfree(tgt);
ql_log(ql_log_warn, base_vha, 0x0197,
"Unable to allocate qpair hints.\n");
return -ENOMEM;
}
if (!(base_vha->host->hostt->supported_mode & MODE_TARGET)) if (!(base_vha->host->hostt->supported_mode & MODE_TARGET))
base_vha->host->hostt->supported_mode |= MODE_TARGET; base_vha->host->hostt->supported_mode |= MODE_TARGET;
rc = btree_init64(&tgt->lun_qpair_map);
if (rc) {
kfree(tgt->qphints);
kfree(tgt);
ql_log(ql_log_info, base_vha, 0x0198,
"Unable to initialize lun_qpair_map btree\n");
return -EIO;
}
h = &tgt->qphints[0];
h->qpair = ha->base_qpair;
INIT_LIST_HEAD(&h->hint_elem);
h->cpuid = ha->base_qpair->cpuid;
list_add_tail(&h->hint_elem, &ha->base_qpair->hints_list);
for (i = 0; i < ha->max_qpairs; i++) {
unsigned long flags;
struct qla_qpair *qpair = ha->queue_pair_map[i];
h = &tgt->qphints[i + 1];
INIT_LIST_HEAD(&h->hint_elem);
if (qpair) {
h->qpair = qpair;
spin_lock_irqsave(qpair->qp_lock_ptr, flags);
list_add_tail(&h->hint_elem, &qpair->hints_list);
spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
h->cpuid = qpair->cpuid;
}
}
tgt->ha = ha; tgt->ha = ha;
tgt->vha = base_vha; tgt->vha = base_vha;
init_waitqueue_head(&tgt->waitQ); init_waitqueue_head(&tgt->waitQ);
......
...@@ -787,10 +787,18 @@ struct qla_port_24xx_data { ...@@ -787,10 +787,18 @@ struct qla_port_24xx_data {
uint16_t reserved; uint16_t reserved;
}; };
struct qla_qpair_hint {
struct list_head hint_elem;
struct qla_qpair *qpair;
u16 cpuid;
uint8_t cmd_cnt;
};
struct qla_tgt { struct qla_tgt {
struct scsi_qla_host *vha; struct scsi_qla_host *vha;
struct qla_hw_data *ha; struct qla_hw_data *ha;
struct btree_head64 lun_qpair_map;
struct qla_qpair_hint *qphints;
/* /*
* To sync between IRQ handlers and qlt_target_release(). Needed, * To sync between IRQ handlers and qlt_target_release(). Needed,
* because req_pkt() can drop/reaquire HW lock inside. Protected by * because req_pkt() can drop/reaquire HW lock inside. Protected by
......
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