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scsi: qla2xxx: Move {get|rel}_sp to base_qpair struct

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Currently, qla2x00_[get_sp|rel_sp] routines does {get|release} of srb
resource/srb_mempool directly from qla_hw_data.  qla2x00_start_sp() is used to
issue management commands through the default Request Q 0 & Response Q 0 or
base_qpair. This patch moves access of these resources through
base_qpair. Instead of having knowledge of specific Q number and lock to
rsp/req queue, this change will key off the qpair that is assigned to the srb
resource. This lays the ground work for other routines to see this resource
through the qpair.

Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Quinn Tran 2018-09-04 14:19:15 -07:00 committed by Martin K. Petersen
parent 8b4673ba3a
commit 6a62946892
6 changed files with 19 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/scsi/qla2xxx/qla_gs.c
View File

@ -4157,7 +4157,6 @@ static void qla2x00_async_gpnft_gnnft_sp_done(void *s, int res)
if (rc) {
/* Cleanup here to prevent memory leak */
qla24xx_sp_unmap(vha, sp);
sp->free(sp);
}
spin_lock_irqsave(&vha->work_lock, flags);

3
drivers/scsi/qla2xxx/qla_init.c
View File

@ -1761,7 +1761,8 @@ qla24xx_async_abort_cmd(srb_t *cmd_sp, bool wait)
srb_t *sp;
int rval = QLA_FUNCTION_FAILED;
sp = qla2xxx_get_qpair_sp(cmd_sp->qpair, cmd_sp->fcport, GFP_KERNEL);
sp = qla2xxx_get_qpair_sp(cmd_sp->vha, cmd_sp->qpair, cmd_sp->fcport,
GFP_KERNEL);
if (!sp)
goto done;

17
drivers/scsi/qla2xxx/qla_inline.h
View File

@ -209,7 +209,8 @@ qla2x00_chip_is_down(scsi_qla_host_t *vha)
}
static inline srb_t *
qla2xxx_get_qpair_sp(struct qla_qpair *qpair, fc_port_t *fcport, gfp_t flag)
qla2xxx_get_qpair_sp(scsi_qla_host_t *vha, struct qla_qpair *qpair,
fc_port_t *fcport, gfp_t flag)
{
srb_t *sp = NULL;
uint8_t bail;
@ -225,7 +226,9 @@ qla2xxx_get_qpair_sp(struct qla_qpair *qpair, fc_port_t *fcport, gfp_t flag)
memset(sp, 0, sizeof(*sp));
sp->fcport = fcport;
sp->iocbs = 1;
sp->vha = qpair->vha;
sp->vha = vha;
sp->qpair = qpair;
sp->cmd_type = TYPE_SRB;
INIT_LIST_HEAD(&sp->elem);
done:
@ -246,19 +249,17 @@ qla2x00_get_sp(scsi_qla_host_t *vha, fc_port_t *fcport, gfp_t flag)
{
srb_t *sp = NULL;
uint8_t bail;
struct qla_qpair *qpair;
QLA_VHA_MARK_BUSY(vha, bail);
if (unlikely(bail))
return NULL;
sp = mempool_alloc(vha->hw->srb_mempool, flag);
qpair = vha->hw->base_qpair;
sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, flag);
if (!sp)
goto done;
memset(sp, 0, sizeof(*sp));
sp->fcport = fcport;
sp->cmd_type = TYPE_SRB;
sp->iocbs = 1;
sp->vha = vha;
done:
if (!sp)
@ -270,7 +271,7 @@ static inline void
qla2x00_rel_sp(srb_t *sp)
{
QLA_VHA_MARK_NOT_BUSY(sp->vha);
mempool_free(sp, sp->vha->hw->srb_mempool);
qla2xxx_rel_qpair_sp(sp->qpair, sp);
}
static inline void

9
drivers/scsi/qla2xxx/qla_iocb.c
View File

@ -3440,12 +3440,13 @@ qla2x00_start_sp(srb_t *sp)
int rval;
scsi_qla_host_t *vha = sp->vha;
struct qla_hw_data *ha = vha->hw;
struct qla_qpair *qp = sp->qpair;
void *pkt;
unsigned long flags;
rval = QLA_FUNCTION_FAILED;
spin_lock_irqsave(&ha->hardware_lock, flags);
pkt = qla2x00_alloc_iocbs(vha, sp);
spin_lock_irqsave(qp->qp_lock_ptr, flags);
pkt = __qla2x00_alloc_iocbs(sp->qpair, sp);
if (!pkt) {
ql_log(ql_log_warn, vha, 0x700c,
"qla2x00_alloc_iocbs failed.\n");
@ -3523,9 +3524,9 @@ qla2x00_start_sp(srb_t *sp)
}
wmb();
qla2x00_start_iocbs(vha, ha->req_q_map[0]);
qla2x00_start_iocbs(vha, qp->req);
done:
spin_unlock_irqrestore(&ha->hardware_lock, flags);
spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
return rval;
}

2
drivers/scsi/qla2xxx/qla_nvme.c
View File

@ -506,7 +506,7 @@ static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
return -EBUSY;
/* Alloc SRB structure */
sp = qla2xxx_get_qpair_sp(qpair, fcport, GFP_ATOMIC);
sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC);
if (!sp)
return -EBUSY;

3
drivers/scsi/qla2xxx/qla_os.c
View File

@ -398,6 +398,7 @@ static void qla_init_base_qpair(struct scsi_qla_host *vha, struct req_que *req,
ha->base_qpair->qp_lock_ptr = &ha->hardware_lock;
ha->base_qpair->use_shadow_reg = IS_SHADOW_REG_CAPABLE(ha) ? 1 : 0;
ha->base_qpair->msix = &ha->msix_entries[QLA_MSIX_RSP_Q];
ha->base_qpair->srb_mempool = ha->srb_mempool;
INIT_LIST_HEAD(&ha->base_qpair->hints_list);
ha->base_qpair->enable_class_2 = ql2xenableclass2;
/* init qpair to this cpu. Will adjust at run time. */
@ -1013,7 +1014,7 @@ qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
else
goto qc24_target_busy;
sp = qla2xxx_get_qpair_sp(qpair, fcport, GFP_ATOMIC);
sp = qla2xxx_get_qpair_sp(vha, qpair, fcport, GFP_ATOMIC);
if (!sp)
goto qc24_host_busy;