Lines Matching refs:shost
61 int scsi_init_sense_cache(struct Scsi_Host *shost) in scsi_init_sense_cache() argument
278 static void scsi_dec_host_busy(struct Scsi_Host *shost, struct scsi_cmnd *cmd) in scsi_dec_host_busy() argument
284 if (unlikely(scsi_host_in_recovery(shost))) { in scsi_dec_host_busy()
285 spin_lock_irqsave(shost->host_lock, flags); in scsi_dec_host_busy()
286 if (shost->host_failed || shost->host_eh_scheduled) in scsi_dec_host_busy()
287 scsi_eh_wakeup(shost); in scsi_dec_host_busy()
288 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_dec_host_busy()
295 struct Scsi_Host *shost = sdev->host; in scsi_device_unbusy() local
298 scsi_dec_host_busy(shost, cmd); in scsi_device_unbusy()
321 struct Scsi_Host *shost = current_sdev->host; in scsi_single_lun_run() local
326 spin_lock_irqsave(shost->host_lock, flags); in scsi_single_lun_run()
328 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_single_lun_run()
338 spin_lock_irqsave(shost->host_lock, flags); in scsi_single_lun_run()
348 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_single_lun_run()
350 spin_lock_irqsave(shost->host_lock, flags); in scsi_single_lun_run()
355 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_single_lun_run()
378 static inline bool scsi_host_is_busy(struct Scsi_Host *shost) in scsi_host_is_busy() argument
380 if (atomic_read(&shost->host_blocked) > 0) in scsi_host_is_busy()
382 if (shost->host_self_blocked) in scsi_host_is_busy()
387 static void scsi_starved_list_run(struct Scsi_Host *shost) in scsi_starved_list_run() argument
393 spin_lock_irqsave(shost->host_lock, flags); in scsi_starved_list_run()
394 list_splice_init(&shost->starved_list, &starved_list); in scsi_starved_list_run()
409 if (scsi_host_is_busy(shost)) in scsi_starved_list_run()
417 &shost->starved_list); in scsi_starved_list_run()
434 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_starved_list_run()
439 spin_lock_irqsave(shost->host_lock, flags); in scsi_starved_list_run()
442 list_splice(&starved_list, &shost->starved_list); in scsi_starved_list_run()
443 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_starved_list_run()
474 void scsi_run_host_queues(struct Scsi_Host *shost) in scsi_run_host_queues() argument
478 shost_for_each_device(sdev, shost) in scsi_run_host_queues()
1281 static inline int scsi_target_queue_ready(struct Scsi_Host *shost, in scsi_target_queue_ready() argument
1288 spin_lock_irq(shost->host_lock); in scsi_target_queue_ready()
1291 spin_unlock_irq(shost->host_lock); in scsi_target_queue_ready()
1295 spin_unlock_irq(shost->host_lock); in scsi_target_queue_ready()
1322 spin_lock_irq(shost->host_lock); in scsi_target_queue_ready()
1323 list_move_tail(&sdev->starved_entry, &shost->starved_list); in scsi_target_queue_ready()
1324 spin_unlock_irq(shost->host_lock); in scsi_target_queue_ready()
1337 struct Scsi_Host *shost, in scsi_host_queue_ready() argument
1341 if (scsi_host_in_recovery(shost)) in scsi_host_queue_ready()
1344 if (atomic_read(&shost->host_blocked) > 0) { in scsi_host_queue_ready()
1345 if (scsi_host_busy(shost) > 0) in scsi_host_queue_ready()
1351 if (atomic_dec_return(&shost->host_blocked) > 0) in scsi_host_queue_ready()
1355 shost_printk(KERN_INFO, shost, in scsi_host_queue_ready()
1359 if (shost->host_self_blocked) in scsi_host_queue_ready()
1364 spin_lock_irq(shost->host_lock); in scsi_host_queue_ready()
1367 spin_unlock_irq(shost->host_lock); in scsi_host_queue_ready()
1375 spin_lock_irq(shost->host_lock); in scsi_host_queue_ready()
1377 list_add_tail(&sdev->starved_entry, &shost->starved_list); in scsi_host_queue_ready()
1378 spin_unlock_irq(shost->host_lock); in scsi_host_queue_ready()
1380 scsi_dec_host_busy(shost, cmd); in scsi_host_queue_ready()
1399 struct Scsi_Host *shost; in scsi_mq_lld_busy() local
1404 shost = sdev->host; in scsi_mq_lld_busy()
1412 if (scsi_host_in_recovery(shost) || scsi_device_is_busy(sdev)) in scsi_mq_lld_busy()
1537 static unsigned int scsi_mq_inline_sgl_size(struct Scsi_Host *shost) in scsi_mq_inline_sgl_size() argument
1539 return min_t(unsigned int, shost->sg_tablesize, SCSI_INLINE_SG_CNT) * in scsi_mq_inline_sgl_size()
1547 struct Scsi_Host *shost = sdev->host; in scsi_prepare_cmd() local
1558 sg = (void *)cmd + sizeof(struct scsi_cmnd) + shost->hostt->cmd_size; in scsi_prepare_cmd()
1561 if (scsi_host_get_prot(shost)) { in scsi_prepare_cmd()
1665 struct Scsi_Host *shost = sdev->host; in scsi_queue_rq() local
1683 if (!scsi_target_queue_ready(shost, sdev)) in scsi_queue_rq()
1685 if (!scsi_host_queue_ready(q, shost, sdev, cmd)) in scsi_queue_rq()
1718 scsi_dec_host_busy(shost, cmd); in scsi_queue_rq()
1767 struct Scsi_Host *shost = set->driver_data; in scsi_mq_init_request() local
1778 if (scsi_host_get_prot(shost)) { in scsi_mq_init_request()
1780 shost->hostt->cmd_size; in scsi_mq_init_request()
1781 cmd->prot_sdb = (void *)sg + scsi_mq_inline_sgl_size(shost); in scsi_mq_init_request()
1784 if (shost->hostt->init_cmd_priv) { in scsi_mq_init_request()
1785 ret = shost->hostt->init_cmd_priv(shost, cmd); in scsi_mq_init_request()
1796 struct Scsi_Host *shost = set->driver_data; in scsi_mq_exit_request() local
1799 if (shost->hostt->exit_cmd_priv) in scsi_mq_exit_request()
1800 shost->hostt->exit_cmd_priv(shost, cmd); in scsi_mq_exit_request()
1807 struct Scsi_Host *shost = hctx->driver_data; in scsi_mq_poll() local
1809 if (shost->hostt->mq_poll) in scsi_mq_poll()
1810 return shost->hostt->mq_poll(shost, hctx->queue_num); in scsi_mq_poll()
1818 struct Scsi_Host *shost = data; in scsi_init_hctx() local
1820 hctx->driver_data = shost; in scsi_init_hctx()
1826 struct Scsi_Host *shost = container_of(set, struct Scsi_Host, tag_set); in scsi_map_queues() local
1828 if (shost->hostt->map_queues) in scsi_map_queues()
1829 return shost->hostt->map_queues(shost); in scsi_map_queues()
1833 void __scsi_init_queue(struct Scsi_Host *shost, struct request_queue *q) in __scsi_init_queue() argument
1835 struct device *dev = shost->dma_dev; in __scsi_init_queue()
1840 blk_queue_max_segments(q, min_t(unsigned short, shost->sg_tablesize, in __scsi_init_queue()
1843 if (scsi_host_prot_dma(shost)) { in __scsi_init_queue()
1844 shost->sg_prot_tablesize = in __scsi_init_queue()
1845 min_not_zero(shost->sg_prot_tablesize, in __scsi_init_queue()
1847 BUG_ON(shost->sg_prot_tablesize < shost->sg_tablesize); in __scsi_init_queue()
1848 blk_queue_max_integrity_segments(q, shost->sg_prot_tablesize); in __scsi_init_queue()
1852 shost->max_sectors = min_t(unsigned int, shost->max_sectors, in __scsi_init_queue()
1855 blk_queue_max_hw_sectors(q, shost->max_sectors); in __scsi_init_queue()
1856 blk_queue_segment_boundary(q, shost->dma_boundary); in __scsi_init_queue()
1857 dma_set_seg_boundary(dev, shost->dma_boundary); in __scsi_init_queue()
1859 blk_queue_max_segment_size(q, shost->max_segment_size); in __scsi_init_queue()
1860 blk_queue_virt_boundary(q, shost->virt_boundary_mask); in __scsi_init_queue()
1897 struct Scsi_Host *shost = hctx->driver_data; in scsi_commit_rqs() local
1899 shost->hostt->commit_rqs(shost, hctx->queue_num); in scsi_commit_rqs()
1923 int scsi_mq_setup_tags(struct Scsi_Host *shost) in scsi_mq_setup_tags() argument
1926 struct blk_mq_tag_set *tag_set = &shost->tag_set; in scsi_mq_setup_tags()
1929 scsi_mq_inline_sgl_size(shost)); in scsi_mq_setup_tags()
1930 cmd_size = sizeof(struct scsi_cmnd) + shost->hostt->cmd_size + sgl_size; in scsi_mq_setup_tags()
1931 if (scsi_host_get_prot(shost)) in scsi_mq_setup_tags()
1936 if (shost->hostt->commit_rqs) in scsi_mq_setup_tags()
1940 tag_set->nr_hw_queues = shost->nr_hw_queues ? : 1; in scsi_mq_setup_tags()
1941 tag_set->nr_maps = shost->nr_maps ? : 1; in scsi_mq_setup_tags()
1942 tag_set->queue_depth = shost->can_queue; in scsi_mq_setup_tags()
1947 BLK_ALLOC_POLICY_TO_MQ_FLAG(shost->hostt->tag_alloc_policy); in scsi_mq_setup_tags()
1948 tag_set->driver_data = shost; in scsi_mq_setup_tags()
1949 if (shost->host_tagset) in scsi_mq_setup_tags()
1955 void scsi_mq_destroy_tags(struct Scsi_Host *shost) in scsi_mq_destroy_tags() argument
1957 blk_mq_free_tag_set(&shost->tag_set); in scsi_mq_destroy_tags()
1996 void scsi_block_requests(struct Scsi_Host *shost) in scsi_block_requests() argument
1998 shost->host_self_blocked = 1; in scsi_block_requests()
2012 void scsi_unblock_requests(struct Scsi_Host *shost) in scsi_unblock_requests() argument
2014 shost->host_self_blocked = 0; in scsi_unblock_requests()
2015 scsi_run_host_queues(shost); in scsi_unblock_requests()
2896 scsi_host_block(struct Scsi_Host *shost) in scsi_host_block() argument
2905 shost_for_each_device(sdev, shost) { in scsi_host_block()
2919 WARN_ON_ONCE(shost->tag_set.flags & BLK_MQ_F_BLOCKING); in scsi_host_block()
2929 scsi_host_unblock(struct Scsi_Host *shost, int new_state) in scsi_host_unblock() argument
2934 shost_for_each_device(sdev, shost) { in scsi_host_unblock()