diff options
| author | Quinn Tran <quinn.tran@cavium.com> | 2017-06-13 20:47:17 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-06-27 21:21:40 -0400 |
| commit | 82de802ad46e23820f7fcaddc45adde181d95562 (patch) | |
| tree | 5769de7e041b27991ea14768c74837bf6825800f /drivers/scsi/qla2xxx/qla_os.c | |
| parent | c5419e2618b951a73d590e0752810686d52c45cf (diff) | |
| download | linux-82de802ad46e23820f7fcaddc45adde181d95562.tar.bz2 | |
scsi: qla2xxx: Preparation for Target MQ.
In Current code, Req Q 0, RespQ 0 & hardware_lock are the main resources
for sending and process completion of Target IO. These resources are now
referenced behind a new qpair/"struct qla_qpair base_qpair". Main path
IO handle will access those resources via the qpair pointer in
preparation for Target MQ.
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>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_os.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index d92e65b40c44..82bbb6432f77 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -389,6 +389,13 @@ static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req, ha->base_qpair->rsp = rsp; } + rsp->qpair = ha->base_qpair; + rsp->req = req; + ha->base_qpair->vha = vha; + ha->base_qpair->qp_lock_ptr = &ha->hardware_lock; + ha->queue_pair_map[0] = ha->base_qpair; + set_bit(0, ha->qpair_qid_map); + /* * 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. @@ -399,9 +406,10 @@ 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->base_qpair); + ha->base_qpair = NULL; +fail_base_qpair: kfree(ha->rsp_q_map); ha->rsp_q_map = NULL; fail_rsp_map: @@ -451,6 +459,15 @@ static void qla2x00_free_queues(struct qla_hw_data *ha) int cnt; unsigned long flags; + if (ha->queue_pair_map) { + kfree(ha->queue_pair_map); + ha->queue_pair_map = NULL; + } + if (ha->base_qpair) { + kfree(ha->base_qpair); + ha->base_qpair = NULL; + } + spin_lock_irqsave(&ha->hardware_lock, flags); for (cnt = 0; cnt < ha->max_req_queues; cnt++) { if (!test_bit(cnt, ha->req_qid_map)) @@ -3113,7 +3130,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) /* Create start of day qpairs for Block MQ */ if (shost_use_blk_mq(host)) { for (i = 0; i < ha->max_qpairs; i++) - qla2xxx_create_qpair(base_vha, 5, 0); + qla2xxx_create_qpair(base_vha, 5, 0, true); } } |