]> bbs.cooldavid.org Git - net-next-2.6.git/blobdiff - drivers/scsi/qla2xxx/qla_mid.c
[SCSI] qla2xxx: add support for multi-queue adapter
[net-next-2.6.git] / drivers / scsi / qla2xxx / qla_mid.c
index da3db3abb82c7fef4c1e728818279f823f4056e0..386ffeae5b5a75ecd925c513eef12f608ce2ca9f 100644 (file)
@@ -101,6 +101,7 @@ qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
                    "loop_id=0x%04x :%x\n",
                    vha->host_no, fcport->loop_id, fcport->vp_idx));
 
+               atomic_set(&fcport->state, FCS_DEVICE_DEAD);
                qla2x00_mark_device_lost(vha, fcport, 0, 0);
                atomic_set(&fcport->state, FCS_UNCONFIGURED);
        }
@@ -191,9 +192,10 @@ qla24xx_configure_vp(scsi_qla_host_t *vha)
 }
 
 void
-qla2x00_alert_all_vps(struct qla_hw_data *ha, uint16_t *mb)
+qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
 {
        scsi_qla_host_t *vha;
+       struct qla_hw_data *ha = rsp->hw;
        int i = 0;
 
        list_for_each_entry(vha, &ha->vp_list, list) {
@@ -210,7 +212,7 @@ qla2x00_alert_all_vps(struct qla_hw_data *ha, uint16_t *mb)
                                DEBUG15(printk("scsi(%ld)%s: Async_event for"
                                " VP[%d], mb = 0x%x, vha=%p\n",
                                vha->host_no, __func__, i, *mb, vha));
-                               qla2x00_async_event(vha, mb);
+                               qla2x00_async_event(vha, rsp, mb);
                                break;
                        }
                }
@@ -282,8 +284,7 @@ qla2x00_do_dpc_vp(scsi_qla_host_t *vha)
                clear_bit(RESET_ACTIVE, &vha->dpc_flags);
        }
 
-       if (atomic_read(&vha->vp_state) == VP_ACTIVE &&
-           test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
+       if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags)) {
                if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags))) {
                        qla2x00_loop_resync(vha);
                        clear_bit(LOOP_RESYNC_ACTIVE, &vha->dpc_flags);
@@ -367,7 +368,6 @@ qla24xx_create_vhost(struct fc_vport *fc_vport)
 
        host = vha->host;
        fc_vport->dd_data = vha;
-
        /* New host info */
        u64_to_wwn(fc_vport->node_name, vha->node_name);
        u64_to_wwn(fc_vport->port_name, vha->port_name);
@@ -396,7 +396,9 @@ qla24xx_create_vhost(struct fc_vport *fc_vport)
 
        qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
 
-       host->can_queue = ha->req->length + 128;
+       memset(vha->req_ques, 0, sizeof(vha->req_ques) * QLA_MAX_HOST_QUES);
+       vha->req_ques[0] = ha->req_q_map[0]->id;
+       host->can_queue = ha->req_q_map[0]->length + 128;
        host->this_id = 255;
        host->cmd_per_lun = 3;
        host->max_cmd_len = MAX_CMDSZ;
@@ -416,3 +418,338 @@ qla24xx_create_vhost(struct fc_vport *fc_vport)
 create_vhost_failed:
        return NULL;
 }
+
+static void
+qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
+{
+       struct qla_hw_data *ha = vha->hw;
+       uint16_t que_id = req->id;
+
+       dma_free_coherent(&ha->pdev->dev, (req->length + 1) *
+               sizeof(request_t), req->ring, req->dma);
+       req->ring = NULL;
+       req->dma = 0;
+       if (que_id) {
+               ha->req_q_map[que_id] = NULL;
+               mutex_lock(&ha->vport_lock);
+               clear_bit(que_id, ha->req_qid_map);
+               mutex_unlock(&ha->vport_lock);
+       }
+       kfree(req);
+       req = NULL;
+}
+
+static void
+qla25xx_free_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
+{
+       struct qla_hw_data *ha = vha->hw;
+       uint16_t que_id = rsp->id;
+
+       if (rsp->msix && rsp->msix->have_irq) {
+               free_irq(rsp->msix->vector, rsp);
+               rsp->msix->have_irq = 0;
+               rsp->msix->rsp = NULL;
+       }
+       dma_free_coherent(&ha->pdev->dev, (rsp->length + 1) *
+               sizeof(response_t), rsp->ring, rsp->dma);
+       rsp->ring = NULL;
+       rsp->dma = 0;
+       if (que_id) {
+               ha->rsp_q_map[que_id] = NULL;
+               mutex_lock(&ha->vport_lock);
+               clear_bit(que_id, ha->rsp_qid_map);
+               mutex_unlock(&ha->vport_lock);
+       }
+       kfree(rsp);
+       rsp = NULL;
+}
+
+int
+qla25xx_delete_req_que(struct scsi_qla_host *vha, struct req_que *req)
+{
+       int ret = -1;
+
+       if (req) {
+               req->options |= BIT_0;
+               ret = qla25xx_init_req_que(vha, req, req->options);
+       }
+       if (ret == QLA_SUCCESS)
+               qla25xx_free_req_que(vha, req);
+
+       return ret;
+}
+
+int
+qla25xx_delete_rsp_que(struct scsi_qla_host *vha, struct rsp_que *rsp)
+{
+       int ret = -1;
+
+       if (rsp) {
+               rsp->options |= BIT_0;
+               ret = qla25xx_init_rsp_que(vha, rsp, rsp->options);
+       }
+       if (ret == QLA_SUCCESS)
+               qla25xx_free_rsp_que(vha, rsp);
+
+       return ret;
+}
+
+int qla25xx_update_req_que(struct scsi_qla_host *vha, uint8_t que, uint8_t qos)
+{
+       int ret = 0;
+       struct qla_hw_data *ha = vha->hw;
+       struct req_que *req = ha->req_q_map[que];
+
+       req->options |= BIT_3;
+       req->qos = qos;
+       ret = qla25xx_init_req_que(vha, req, req->options);
+       if (ret != QLA_SUCCESS)
+               DEBUG2_17(printk(KERN_WARNING "%s failed\n", __func__));
+       /* restore options bit */
+       req->options &= ~BIT_3;
+       return ret;
+}
+
+
+/* Delete all queues for a given vhost */
+int
+qla25xx_delete_queues(struct scsi_qla_host *vha, uint8_t que_no)
+{
+       int cnt, ret = 0;
+       struct req_que *req = NULL;
+       struct rsp_que *rsp = NULL;
+       struct qla_hw_data *ha = vha->hw;
+
+       if (que_no) {
+       /* Delete request queue */
+               req = ha->req_q_map[que_no];
+               if (req) {
+                       rsp = req->rsp;
+                       ret = qla25xx_delete_req_que(vha, req);
+                       if (ret != QLA_SUCCESS) {
+                               qla_printk(KERN_WARNING, ha,
+                               "Couldn't delete req que %d\n", req->id);
+                               return ret;
+                       }
+                       /* Delete associated response queue */
+                       if (rsp) {
+                               ret = qla25xx_delete_rsp_que(vha, rsp);
+                               if (ret != QLA_SUCCESS) {
+                                       qla_printk(KERN_WARNING, ha,
+                                               "Couldn't delete rsp que %d\n",
+                                               rsp->id);
+                                       return ret;
+                               }
+                       }
+               }
+       } else {  /* delete all queues of this host */
+               for (cnt = 0; cnt < QLA_MAX_HOST_QUES; cnt++) {
+                       /* Delete request queues */
+                       req = ha->req_q_map[vha->req_ques[cnt]];
+                       if (req && req->id) {
+                               rsp = req->rsp;
+                               ret = qla25xx_delete_req_que(vha, req);
+                               if (ret != QLA_SUCCESS) {
+                                       qla_printk(KERN_WARNING, ha,
+                                               "Couldn't delete req que %d\n",
+                                               vha->req_ques[cnt]);
+                                       return ret;
+                               }
+                               vha->req_ques[cnt] = ha->req_q_map[0]->id;
+                       /* Delete associated response queue */
+                               if (rsp && rsp->id) {
+                                       ret = qla25xx_delete_rsp_que(vha, rsp);
+                                       if (ret != QLA_SUCCESS) {
+                                               qla_printk(KERN_WARNING, ha,
+                                               "Couldn't delete rsp que %d\n",
+                                               rsp->id);
+                                               return ret;
+                                       }
+                               }
+                       }
+               }
+       }
+       qla_printk(KERN_INFO, ha, "Queues deleted for vport:%d\n",
+               vha->vp_idx);
+       return ret;
+}
+
+int
+qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
+       uint8_t vp_idx, uint16_t rid, uint8_t rsp_que, uint8_t qos)
+{
+       int ret = 0;
+       struct req_que *req = NULL;
+       struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
+       uint16_t que_id = 0;
+
+       req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
+       if (req == NULL) {
+               qla_printk(KERN_WARNING, ha, "could not allocate memory"
+                       "for request que\n");
+               goto que_failed;
+       }
+
+       req->length = REQUEST_ENTRY_CNT_24XX;
+       req->ring = dma_alloc_coherent(&ha->pdev->dev,
+                       (req->length + 1) * sizeof(request_t),
+                       &req->dma, GFP_KERNEL);
+       if (req->ring == NULL) {
+               qla_printk(KERN_WARNING, ha,
+               "Memory Allocation failed - request_ring\n");
+               goto que_failed;
+       }
+
+       mutex_lock(&ha->vport_lock);
+       que_id = find_first_zero_bit(ha->req_qid_map, ha->max_queues);
+       if (que_id >= ha->max_queues) {
+               mutex_unlock(&ha->vport_lock);
+               qla_printk(KERN_INFO, ha, "No resources to create "
+                        "additional request queue\n");
+               goto que_failed;
+       }
+       set_bit(que_id, ha->req_qid_map);
+       ha->req_q_map[que_id] = req;
+       req->rid = rid;
+       req->vp_idx = vp_idx;
+       req->qos = qos;
+
+       if (ha->rsp_q_map[rsp_que])
+               req->rsp = ha->rsp_q_map[rsp_que];
+       /* Use alternate PCI bus number */
+       if (MSB(req->rid))
+               options |= BIT_4;
+       /* Use alternate PCI devfn */
+       if (LSB(req->rid))
+               options |= BIT_5;
+       req->options = options;
+       req->ring_ptr = req->ring;
+       req->ring_index = 0;
+       req->cnt = req->length;
+       req->id = que_id;
+       mutex_unlock(&ha->vport_lock);
+
+       ret = qla25xx_init_req_que(base_vha, req, options);
+       if (ret != QLA_SUCCESS) {
+               qla_printk(KERN_WARNING, ha, "%s failed\n", __func__);
+               mutex_lock(&ha->vport_lock);
+               clear_bit(que_id, ha->req_qid_map);
+               mutex_unlock(&ha->vport_lock);
+               goto que_failed;
+       }
+
+       return req->id;
+
+que_failed:
+       qla25xx_free_req_que(base_vha, req);
+       return 0;
+}
+
+/* create response queue */
+int
+qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
+       uint8_t vp_idx, uint16_t rid)
+{
+       int ret = 0;
+       struct rsp_que *rsp = NULL;
+       struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
+       uint16_t que_id = 0;;
+
+       rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
+       if (rsp == NULL) {
+               qla_printk(KERN_WARNING, ha, "could not allocate memory for"
+                               " response que\n");
+               goto que_failed;
+       }
+
+       rsp->length = RESPONSE_ENTRY_CNT_2300;
+       rsp->ring = dma_alloc_coherent(&ha->pdev->dev,
+                       (rsp->length + 1) * sizeof(response_t),
+                       &rsp->dma, GFP_KERNEL);
+       if (rsp->ring == NULL) {
+               qla_printk(KERN_WARNING, ha,
+               "Memory Allocation failed - response_ring\n");
+               goto que_failed;
+       }
+
+       mutex_lock(&ha->vport_lock);
+       que_id = find_first_zero_bit(ha->rsp_qid_map, ha->max_queues);
+       if (que_id >= ha->max_queues) {
+               mutex_unlock(&ha->vport_lock);
+               qla_printk(KERN_INFO, ha, "No resources to create "
+                        "additional response 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
+               qla_printk(KERN_WARNING, ha, "msix not enabled\n");
+
+       ha->rsp_q_map[que_id] = rsp;
+       rsp->rid = rid;
+       rsp->vp_idx = vp_idx;
+       rsp->hw = ha;
+       /* Use alternate PCI bus number */
+       if (MSB(rsp->rid))
+               options |= BIT_4;
+       /* Use alternate PCI devfn */
+       if (LSB(rsp->rid))
+               options |= BIT_5;
+       rsp->options = options;
+       rsp->ring_ptr = rsp->ring;
+       rsp->ring_index = 0;
+       rsp->id = que_id;
+       mutex_unlock(&ha->vport_lock);
+
+       ret = qla25xx_request_irq(rsp);
+       if (ret)
+               goto que_failed;
+
+       ret = qla25xx_init_rsp_que(base_vha, rsp, options);
+       if (ret != QLA_SUCCESS) {
+               qla_printk(KERN_WARNING, ha, "%s failed\n", __func__);
+               mutex_lock(&ha->vport_lock);
+               clear_bit(que_id, ha->rsp_qid_map);
+               mutex_unlock(&ha->vport_lock);
+               goto que_failed;
+       }
+
+       qla2x00_init_response_q_entries(rsp);
+
+       return rsp->id;
+
+que_failed:
+       qla25xx_free_rsp_que(base_vha, rsp);
+       return 0;
+}
+
+int
+qla25xx_create_queues(struct scsi_qla_host *vha, uint8_t qos)
+{
+       uint16_t options = 0;
+       uint8_t ret = 0;
+       struct qla_hw_data *ha = vha->hw;
+
+       options |= BIT_1;
+       ret = qla25xx_create_rsp_que(ha, options, vha->vp_idx, 0);
+       if (!ret) {
+               qla_printk(KERN_WARNING, ha, "Response Que create failed\n");
+               return ret;
+       } else
+               qla_printk(KERN_INFO, ha, "Response Que:%d created.\n", ret);
+
+       options = 0;
+       if (qos & BIT_7)
+               options |= BIT_8;
+       ret = qla25xx_create_req_que(ha, options, vha->vp_idx, 0, ret,
+                                       qos & ~BIT_7);
+       if (ret) {
+               vha->req_ques[0] = ret;
+               qla_printk(KERN_INFO, ha, "Request Que:%d created.\n", ret);
+       } else
+               qla_printk(KERN_WARNING, ha, "Request Que create failed\n");
+
+       return ret;
+}