Lines Matching refs:snic
18 #include "snic.h"
23 /* Supported devices by snic module */
31 MODULE_PARM_DESC(snic_log_level, "bitmask for snic logging levels");
37 "Total allocated memory pages for snic trace buffer");
66 struct snic *snic = shost_priv(sdev->host);
75 if (snic->fwinfo.io_tmo > 1)
76 tmo = snic->fwinfo.io_tmo * HZ;
87 struct snic *snic = shost_priv(sdev->host);
92 atomic64_inc(&snic->s_stats.misc.qsz_rampdown);
94 atomic64_inc(&snic->s_stats.misc.qsz_rampup);
96 atomic64_set(&snic->s_stats.misc.last_qsz, sdev->queue_depth);
128 snic_handle_link_event(struct snic *snic)
132 spin_lock_irqsave(&snic->snic_lock, flags);
133 if (snic->stop_link_events) {
134 spin_unlock_irqrestore(&snic->snic_lock, flags);
138 spin_unlock_irqrestore(&snic->snic_lock, flags);
140 queue_work(snic_glob->event_q, &snic->link_work);
146 * Note: snic supports only MSIX interrupts, in which we can just call
150 snic_notify_set(struct snic *snic)
155 intr_mode = svnic_dev_get_intr_mode(snic->vdev);
158 ret = svnic_dev_notify_set(snic->vdev, SNIC_MSIX_ERR_NOTIFY);
160 SNIC_HOST_ERR(snic->shost,
210 * Stops the snic device, masks all interrupts, Completed CQ entries are
214 snic_cleanup(struct snic *snic)
219 svnic_dev_disable(snic->vdev);
220 for (i = 0; i < snic->intr_count; i++)
221 svnic_intr_mask(&snic->intr[i]);
223 for (i = 0; i < snic->wq_count; i++) {
224 ret = svnic_wq_disable(&snic->wq[i]);
230 snic_fwcq_cmpl_handler(snic, -1);
232 snic_wq_cmpl_handler(snic, -1);
235 for (i = 0; i < snic->wq_count; i++)
236 svnic_wq_clean(&snic->wq[i], snic_free_wq_buf);
238 for (i = 0; i < snic->cq_count; i++)
239 svnic_cq_clean(&snic->cq[i]);
241 for (i = 0; i < snic->intr_count; i++)
242 svnic_intr_clean(&snic->intr[i]);
244 /* Cleanup snic specific requests */
245 snic_free_all_untagged_reqs(snic);
248 snic_shutdown_scsi_cleanup(snic);
251 mempool_destroy(snic->req_pool[i]);
258 snic_iounmap(struct snic *snic)
260 if (snic->bar0.vaddr)
261 iounmap(snic->bar0.vaddr);
270 struct snic *snic = svnic_dev_priv(vdev);
279 SNIC_HOST_INFO(snic->shost, "VNIC_DEV_OPEN Timedout.\n");
296 "snic: scsi_add_host failed. %d\n",
327 snic_get_state(struct snic *snic)
329 return atomic_read(&snic->state);
333 snic_set_state(struct snic *snic, enum snic_state state)
335 SNIC_HOST_INFO(snic->shost, "snic state change from %s to %s\n",
336 snic_state_to_str(snic_get_state(snic)),
339 atomic_set(&snic->state, state);
343 * snic_probe : Initialize the snic interface.
349 struct snic *snic;
356 SNIC_INFO("snic device %4x:%4x:%4x:%4x: ",
360 SNIC_INFO("snic device bus %x: slot %x: fn %x\n",
365 * Allocate SCSI Host and setup association between host, and snic
367 shost = scsi_host_alloc(&snic_host_template, sizeof(struct snic));
374 snic = shost_priv(shost);
375 snic->shost = shost;
377 snprintf(snic->name, sizeof(snic->name) - 1, "%s%d", SNIC_DRV_NAME,
381 "snic%d = %p shost = %p device bus %x: slot %x: fn %x\n",
382 shost->host_no, snic, shost, pdev->bus->number,
385 /* Per snic debugfs init */
386 snic_stats_debugfs_init(snic);
390 pci_set_drvdata(pdev, snic);
391 snic->pdev = pdev;
437 snic->bar0.vaddr = pci_iomap(pdev, 0, 0);
438 if (!snic->bar0.vaddr) {
446 snic->bar0.bus_addr = pci_resource_start(pdev, 0);
447 snic->bar0.len = pci_resource_len(pdev, 0);
448 SNIC_BUG_ON(snic->bar0.bus_addr == 0);
451 snic->vdev = svnic_dev_alloc_discover(NULL, snic, pdev, &snic->bar0, 1);
452 if (!snic->vdev) {
459 ret = svnic_dev_cmd_init(snic->vdev, 0);
466 ret = snic_dev_wait(snic->vdev, svnic_dev_open, snic_vdev_open_done, 0);
475 ret = svnic_dev_init(snic->vdev, 0);
485 ret = snic_get_vnic_config(snic);
495 max_ios = snic->config.io_throttle_count;
500 snic->max_tag_id = shost->can_queue;
502 shost->max_lun = snic->config.luns_per_tgt;
507 snic_get_res_counts(snic);
512 ret = snic_set_intr_mode(snic);
521 ret = snic_alloc_vnic_res(snic);
531 INIT_LIST_HEAD(&snic->list);
534 * spl_cmd_list for maintaining snic specific cmds
537 INIT_LIST_HEAD(&snic->spl_cmd_list);
538 spin_lock_init(&snic->spl_cmd_lock);
540 /* initialize all snic locks */
541 spin_lock_init(&snic->snic_lock);
544 spin_lock_init(&snic->wq_lock[i]);
547 spin_lock_init(&snic->io_req_lock[i]);
558 snic->req_pool[SNIC_REQ_CACHE_DFLT_SGL] = pool;
569 snic->req_pool[SNIC_REQ_CACHE_MAX_SGL] = pool;
574 SNIC_HOST_ERR(shost, "snic tmreq info pool creation failed.\n");
580 snic->req_pool[SNIC_REQ_TM_CACHE] = pool;
582 /* Initialize snic state */
583 atomic_set(&snic->state, SNIC_INIT);
585 atomic_set(&snic->ios_inflight, 0);
588 ret = snic_notify_set(snic);
598 list_add_tail(&snic->list, &snic_glob->snic_list);
601 snic_disc_init(&snic->disc);
602 INIT_WORK(&snic->tgt_work, snic_handle_tgt_disc);
603 INIT_WORK(&snic->disc_work, snic_handle_disc);
604 INIT_WORK(&snic->link_work, snic_handle_link);
607 for (i = 0; i < snic->wq_count; i++)
608 svnic_wq_enable(&snic->wq[i]);
610 ret = svnic_dev_enable_wait(snic->vdev);
619 ret = snic_request_intr(snic);
626 for (i = 0; i < snic->intr_count; i++)
627 svnic_intr_unmask(&snic->intr[i]);
629 /* Get snic params */
630 ret = snic_get_conf(snic);
633 "Failed to get snic io config from FW w err %d\n",
652 snic_set_state(snic, SNIC_ONLINE);
654 ret = snic_disc_start(snic);
667 snic_free_all_untagged_reqs(snic);
669 for (i = 0; i < snic->intr_count; i++)
670 svnic_intr_mask(&snic->intr[i]);
672 snic_free_intr(snic);
675 svnic_dev_disable(snic->vdev);
678 svnic_dev_notify_unset(snic->vdev);
680 for (i = 0; i < snic->wq_count; i++) {
683 rc = svnic_wq_disable(&snic->wq[i]);
691 snic_del_host(snic->shost);
694 mempool_destroy(snic->req_pool[SNIC_REQ_TM_CACHE]);
697 mempool_destroy(snic->req_pool[SNIC_REQ_CACHE_MAX_SGL]);
700 mempool_destroy(snic->req_pool[SNIC_REQ_CACHE_DFLT_SGL]);
703 snic_free_vnic_res(snic);
706 snic_clear_intr_mode(snic);
709 svnic_dev_close(snic->vdev);
712 svnic_dev_unregister(snic->vdev);
715 snic_iounmap(snic);
725 snic_stats_debugfs_remove(snic);
746 struct snic *snic = pci_get_drvdata(pdev);
749 if (!snic) {
750 SNIC_INFO("sNIC dev: bus %d slot %d fn %d snic inst is null.\n",
761 * items on the snic workqueue
763 snic_set_state(snic, SNIC_OFFLINE);
764 spin_lock_irqsave(&snic->snic_lock, flags);
765 snic->stop_link_events = 1;
766 spin_unlock_irqrestore(&snic->snic_lock, flags);
769 snic_disc_term(snic);
771 spin_lock_irqsave(&snic->snic_lock, flags);
772 snic->in_remove = 1;
773 spin_unlock_irqrestore(&snic->snic_lock, flags);
776 * This stops the snic device, masks all interrupts, Completed
780 snic_cleanup(snic);
783 list_del(&snic->list);
786 snic_tgt_del_all(snic);
788 snic_stats_debugfs_remove(snic);
790 snic_del_host(snic->shost);
792 svnic_dev_notify_unset(snic->vdev);
793 snic_free_intr(snic);
794 snic_free_vnic_res(snic);
795 snic_clear_intr_mode(snic);
796 svnic_dev_close(snic->vdev);
797 svnic_dev_unregister(snic->vdev);
798 snic_iounmap(snic);
803 /* this frees Scsi_Host and snic memory (continuous chunk) */
804 scsi_host_put(snic->shost);
833 /* Create debugfs entries for snic */
855 SNIC_ERR("Failed to create snic default sgl slab\n");
868 SNIC_ERR("Failed to create snic max sgl slab\n");
879 SNIC_ERR("Failed to create snic tm req slab\n");
889 SNIC_ERR("snic event queue create failed\n");