int enic_alloc_wq(struct enic *enic, uint16_t queue_idx, unsigned int socket_id, uint16_t nb_desc) { int err; struct vnic_wq *wq = &enic->wq[queue_idx]; unsigned int cq_index = enic_cq_wq(enic, queue_idx); wq->socket_id = socket_id; if (nb_desc) { if (nb_desc > enic->config.wq_desc_count) { dev_warning(enic, "WQ %d - number of tx desc in cmd line (%d)"\ "is greater than that in the UCSM/CIMC adapter"\ "policy. Applying the value in the adapter "\ "policy (%d)\n", queue_idx, nb_desc, enic->config.wq_desc_count); } else if (nb_desc != enic->config.wq_desc_count) { enic->config.wq_desc_count = nb_desc; dev_info(enic, "TX Queues - effective number of descs:%d\n", nb_desc); } } /* Allocate queue resources */ err = vnic_wq_alloc(enic->vdev, &enic->wq[queue_idx], queue_idx, enic->config.wq_desc_count, sizeof(struct wq_enet_desc)); if (err) { dev_err(enic, "error in allocation of wq\n"); return err; } err = vnic_cq_alloc(enic->vdev, &enic->cq[cq_index], cq_index, socket_id, enic->config.wq_desc_count, sizeof(struct cq_enet_wq_desc)); if (err) { vnic_wq_free(wq); dev_err(enic, "error in allocation of cq for wq\n"); } return err; }
int enic_alloc_vnic_resources(struct enic *enic) { enum vnic_dev_intr_mode intr_mode; unsigned int i; int err; intr_mode = vnic_dev_get_intr_mode(enic->vdev); dev_info(enic_get_dev(enic), "vNIC resources used: " "wq %d rq %d cq %d intr %d intr mode %s\n", enic->wq_count, enic->rq_count, enic->cq_count, enic->intr_count, intr_mode == VNIC_DEV_INTR_MODE_INTX ? "legacy PCI INTx" : intr_mode == VNIC_DEV_INTR_MODE_MSI ? "MSI" : intr_mode == VNIC_DEV_INTR_MODE_MSIX ? "MSI-X" : "unknown"); /* Allocate queue resources */ for (i = 0; i < enic->wq_count; i++) { err = vnic_wq_alloc(enic->vdev, &enic->wq[i], i, enic->config.wq_desc_count, sizeof(struct wq_enet_desc)); if (err) goto err_out_cleanup; } for (i = 0; i < enic->rq_count; i++) { err = vnic_rq_alloc(enic->vdev, &enic->rq[i], i, enic->config.rq_desc_count, sizeof(struct rq_enet_desc)); if (err) goto err_out_cleanup; } for (i = 0; i < enic->cq_count; i++) { if (i < enic->rq_count) err = vnic_cq_alloc(enic->vdev, &enic->cq[i], i, enic->config.rq_desc_count, sizeof(struct cq_enet_rq_desc)); else err = vnic_cq_alloc(enic->vdev, &enic->cq[i], i, enic->config.wq_desc_count, sizeof(struct cq_enet_wq_desc)); if (err) goto err_out_cleanup; } for (i = 0; i < enic->intr_count; i++) { err = vnic_intr_alloc(enic->vdev, &enic->intr[i], i); if (err) goto err_out_cleanup; } /* Hook remaining resource */ enic->legacy_pba = vnic_dev_get_res(enic->vdev, RES_TYPE_INTR_PBA_LEGACY, 0); if (!enic->legacy_pba && intr_mode == VNIC_DEV_INTR_MODE_INTX) { dev_err(enic_get_dev(enic), "Failed to hook legacy pba resource\n"); err = -ENODEV; goto err_out_cleanup; } return 0; err_out_cleanup: enic_free_vnic_resources(enic); return err; }
int fnic_alloc_vnic_resources(struct fnic *fnic) { enum vnic_dev_intr_mode intr_mode; unsigned int mask_on_assertion; unsigned int interrupt_offset; unsigned int error_interrupt_enable; unsigned int error_interrupt_offset; unsigned int i, cq_index; unsigned int wq_copy_cq_desc_count; int err; intr_mode = vnic_dev_get_intr_mode(fnic->vdev); shost_printk(KERN_INFO, fnic->lport->host, "vNIC interrupt mode: %s\n", intr_mode == VNIC_DEV_INTR_MODE_INTX ? "legacy PCI INTx" : intr_mode == VNIC_DEV_INTR_MODE_MSI ? "MSI" : intr_mode == VNIC_DEV_INTR_MODE_MSIX ? "MSI-X" : "unknown"); shost_printk(KERN_INFO, fnic->lport->host, "vNIC resources avail: " "wq %d cp_wq %d raw_wq %d rq %d cq %d intr %d\n", fnic->wq_count, fnic->wq_copy_count, fnic->raw_wq_count, fnic->rq_count, fnic->cq_count, fnic->intr_count); /* Allocate Raw WQ used for FCS frames */ for (i = 0; i < fnic->raw_wq_count; i++) { err = vnic_wq_alloc(fnic->vdev, &fnic->wq[i], i, fnic->config.wq_enet_desc_count, sizeof(struct wq_enet_desc)); if (err) goto err_out_cleanup; } /* Allocate Copy WQs used for SCSI IOs */ for (i = 0; i < fnic->wq_copy_count; i++) { err = vnic_wq_copy_alloc(fnic->vdev, &fnic->wq_copy[i], (fnic->raw_wq_count + i), fnic->config.wq_copy_desc_count, sizeof(struct fcpio_host_req)); if (err) goto err_out_cleanup; } /* RQ for receiving FCS frames */ for (i = 0; i < fnic->rq_count; i++) { err = vnic_rq_alloc(fnic->vdev, &fnic->rq[i], i, fnic->config.rq_desc_count, sizeof(struct rq_enet_desc)); if (err) goto err_out_cleanup; } /* CQ for each RQ */ for (i = 0; i < fnic->rq_count; i++) { cq_index = i; err = vnic_cq_alloc(fnic->vdev, &fnic->cq[cq_index], cq_index, fnic->config.rq_desc_count, sizeof(struct cq_enet_rq_desc)); if (err) goto err_out_cleanup; } /* CQ for each WQ */ for (i = 0; i < fnic->raw_wq_count; i++) { cq_index = fnic->rq_count + i; err = vnic_cq_alloc(fnic->vdev, &fnic->cq[cq_index], cq_index, fnic->config.wq_enet_desc_count, sizeof(struct cq_enet_wq_desc)); if (err) goto err_out_cleanup; } /* CQ for each COPY WQ */ wq_copy_cq_desc_count = (fnic->config.wq_copy_desc_count * 3); for (i = 0; i < fnic->wq_copy_count; i++) { cq_index = fnic->raw_wq_count + fnic->rq_count + i; err = vnic_cq_alloc(fnic->vdev, &fnic->cq[cq_index], cq_index, wq_copy_cq_desc_count, sizeof(struct fcpio_fw_req)); if (err) goto err_out_cleanup; } for (i = 0; i < fnic->intr_count; i++) { err = vnic_intr_alloc(fnic->vdev, &fnic->intr[i], i); if (err) goto err_out_cleanup; } fnic->legacy_pba = vnic_dev_get_res(fnic->vdev, RES_TYPE_INTR_PBA_LEGACY, 0); if (!fnic->legacy_pba && intr_mode == VNIC_DEV_INTR_MODE_INTX) { shost_printk(KERN_ERR, fnic->lport->host, "Failed to hook legacy pba resource\n"); err = -ENODEV; goto err_out_cleanup; } /* * Init RQ/WQ resources. * * RQ[0 to n-1] point to CQ[0 to n-1] * WQ[0 to m-1] point to CQ[n to n+m-1] * WQ_COPY[0 to k-1] points to CQ[n+m to n+m+k-1] * * Note for copy wq we always initialize with cq_index = 0 * * Error interrupt is not enabled for MSI. */ switch (intr_mode) { case VNIC_DEV_INTR_MODE_INTX: case VNIC_DEV_INTR_MODE_MSIX: error_interrupt_enable = 1; error_interrupt_offset = fnic->err_intr_offset; break; default: error_interrupt_enable = 0; error_interrupt_offset = 0; break; } for (i = 0; i < fnic->rq_count; i++) { cq_index = i; vnic_rq_init(&fnic->rq[i], cq_index, error_interrupt_enable, error_interrupt_offset); } for (i = 0; i < fnic->raw_wq_count; i++) { cq_index = i + fnic->rq_count; vnic_wq_init(&fnic->wq[i], cq_index, error_interrupt_enable, error_interrupt_offset); } for (i = 0; i < fnic->wq_copy_count; i++) { vnic_wq_copy_init(&fnic->wq_copy[i], 0 /* cq_index 0 - always */, error_interrupt_enable, error_interrupt_offset); } for (i = 0; i < fnic->cq_count; i++) { switch (intr_mode) { case VNIC_DEV_INTR_MODE_MSIX: interrupt_offset = i; break; default: interrupt_offset = 0; break; } vnic_cq_init(&fnic->cq[i], 0 /* flow_control_enable */, 1 /* color_enable */, 0 /* cq_head */, 0 /* cq_tail */, 1 /* cq_tail_color */, 1 /* interrupt_enable */, 1 /* cq_entry_enable */, 0 /* cq_message_enable */, interrupt_offset, 0 /* cq_message_addr */); } /* * Init INTR resources * * mask_on_assertion is not used for INTx due to the level- * triggered nature of INTx */ switch (intr_mode) { case VNIC_DEV_INTR_MODE_MSI: case VNIC_DEV_INTR_MODE_MSIX: mask_on_assertion = 1; break; default: mask_on_assertion = 0; break; } for (i = 0; i < fnic->intr_count; i++) { vnic_intr_init(&fnic->intr[i], fnic->config.intr_timer, fnic->config.intr_timer_type, mask_on_assertion); } /* init the stats memory by making the first call here */ err = vnic_dev_stats_dump(fnic->vdev, &fnic->stats); if (err) { shost_printk(KERN_ERR, fnic->lport->host, "vnic_dev_stats_dump failed - x%x\n", err); goto err_out_cleanup; } /* Clear LIF stats */ vnic_dev_stats_clear(fnic->vdev); return 0; err_out_cleanup: fnic_free_vnic_resources(fnic); return err; }
int fnic_alloc_vnic_resources(struct fnic *fnic) { enum vnic_dev_intr_mode intr_mode; unsigned int mask_on_assertion; unsigned int interrupt_offset; unsigned int error_interrupt_enable; unsigned int error_interrupt_offset; unsigned int i, cq_index; unsigned int wq_copy_cq_desc_count; int err; intr_mode = vnic_dev_get_intr_mode(fnic->vdev); shost_printk(KERN_INFO, fnic->lport->host, "vNIC interrupt mode: %s\n", intr_mode == VNIC_DEV_INTR_MODE_INTX ? "legacy PCI INTx" : intr_mode == VNIC_DEV_INTR_MODE_MSI ? "MSI" : intr_mode == VNIC_DEV_INTR_MODE_MSIX ? "MSI-X" : "unknown"); shost_printk(KERN_INFO, fnic->lport->host, "vNIC resources avail: " "wq %d cp_wq %d raw_wq %d rq %d cq %d intr %d\n", fnic->wq_count, fnic->wq_copy_count, fnic->raw_wq_count, fnic->rq_count, fnic->cq_count, fnic->intr_count); for (i = 0; i < fnic->raw_wq_count; i++) { err = vnic_wq_alloc(fnic->vdev, &fnic->wq[i], i, fnic->config.wq_enet_desc_count, sizeof(struct wq_enet_desc)); if (err) goto err_out_cleanup; } for (i = 0; i < fnic->wq_copy_count; i++) { err = vnic_wq_copy_alloc(fnic->vdev, &fnic->wq_copy[i], (fnic->raw_wq_count + i), fnic->config.wq_copy_desc_count, sizeof(struct fcpio_host_req)); if (err) goto err_out_cleanup; } for (i = 0; i < fnic->rq_count; i++) { err = vnic_rq_alloc(fnic->vdev, &fnic->rq[i], i, fnic->config.rq_desc_count, sizeof(struct rq_enet_desc)); if (err) goto err_out_cleanup; } for (i = 0; i < fnic->rq_count; i++) { cq_index = i; err = vnic_cq_alloc(fnic->vdev, &fnic->cq[cq_index], cq_index, fnic->config.rq_desc_count, sizeof(struct cq_enet_rq_desc)); if (err) goto err_out_cleanup; } for (i = 0; i < fnic->raw_wq_count; i++) { cq_index = fnic->rq_count + i; err = vnic_cq_alloc(fnic->vdev, &fnic->cq[cq_index], cq_index, fnic->config.wq_enet_desc_count, sizeof(struct cq_enet_wq_desc)); if (err) goto err_out_cleanup; } wq_copy_cq_desc_count = (fnic->config.wq_copy_desc_count * 3); for (i = 0; i < fnic->wq_copy_count; i++) { cq_index = fnic->raw_wq_count + fnic->rq_count + i; err = vnic_cq_alloc(fnic->vdev, &fnic->cq[cq_index], cq_index, wq_copy_cq_desc_count, sizeof(struct fcpio_fw_req)); if (err) goto err_out_cleanup; } for (i = 0; i < fnic->intr_count; i++) { err = vnic_intr_alloc(fnic->vdev, &fnic->intr[i], i); if (err) goto err_out_cleanup; } fnic->legacy_pba = vnic_dev_get_res(fnic->vdev, RES_TYPE_INTR_PBA_LEGACY, 0); if (!fnic->legacy_pba && intr_mode == VNIC_DEV_INTR_MODE_INTX) { shost_printk(KERN_ERR, fnic->lport->host, "Failed to hook legacy pba resource\n"); err = -ENODEV; goto err_out_cleanup; } switch (intr_mode) { case VNIC_DEV_INTR_MODE_INTX: case VNIC_DEV_INTR_MODE_MSIX: error_interrupt_enable = 1; error_interrupt_offset = fnic->err_intr_offset; break; default: error_interrupt_enable = 0; error_interrupt_offset = 0; break; } for (i = 0; i < fnic->rq_count; i++) { cq_index = i; vnic_rq_init(&fnic->rq[i], cq_index, error_interrupt_enable, error_interrupt_offset); } for (i = 0; i < fnic->raw_wq_count; i++) { cq_index = i + fnic->rq_count; vnic_wq_init(&fnic->wq[i], cq_index, error_interrupt_enable, error_interrupt_offset); } for (i = 0; i < fnic->wq_copy_count; i++) { vnic_wq_copy_init(&fnic->wq_copy[i], 0 , error_interrupt_enable, error_interrupt_offset); } for (i = 0; i < fnic->cq_count; i++) { switch (intr_mode) { case VNIC_DEV_INTR_MODE_MSIX: interrupt_offset = i; break; default: interrupt_offset = 0; break; } vnic_cq_init(&fnic->cq[i], 0 , 1 , 0 , 0 , 1 , 1 , 1 , 0 , interrupt_offset, 0 ); } switch (intr_mode) { case VNIC_DEV_INTR_MODE_MSI: case VNIC_DEV_INTR_MODE_MSIX: mask_on_assertion = 1; break; default: mask_on_assertion = 0; break; } for (i = 0; i < fnic->intr_count; i++) { vnic_intr_init(&fnic->intr[i], fnic->config.intr_timer, fnic->config.intr_timer_type, mask_on_assertion); } err = vnic_dev_stats_dump(fnic->vdev, &fnic->stats); if (err) { shost_printk(KERN_ERR, fnic->lport->host, "vnic_dev_stats_dump failed - x%x\n", err); goto err_out_cleanup; } vnic_dev_stats_clear(fnic->vdev); return 0; err_out_cleanup: fnic_free_vnic_resources(fnic); return err; }