diff options
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_init.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_init.c | 173 |
1 files changed, 164 insertions, 9 deletions
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 5b09296b46a3..400ffd1894ee 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1769,8 +1769,7 @@ qla2x00_alloc_outstanding_cmds(struct qla_hw_data *ha, struct req_que *req) 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 @@ qla2x00_loop_resync(scsi_qla_host_t *vha) 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 @@ qla24xx_configure_vhba(scsi_qla_host_t *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) { @@ -6725,3 +6721,162 @@ qla24xx_update_all_fcp_prio(scsi_qla_host_t *vha) return ret; } + +struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos, int vp_idx) +{ + int rsp_id = 0; + int req_id = 0; + int i; + struct qla_hw_data *ha = vha->hw; + uint16_t qpair_id = 0; + struct qla_qpair *qpair = NULL; + struct qla_msix_entry *msix; + + 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; + } + + /* 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; +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; + struct qla_hw_data *ha = qpair->hw; + + 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); + 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; +} |