Lines Matching refs:shost
61 int scsi_init_sense_cache(struct Scsi_Host *shost) in scsi_init_sense_cache() argument
275 static void scsi_dec_host_busy(struct Scsi_Host *shost, struct scsi_cmnd *cmd) in scsi_dec_host_busy() argument
281 if (unlikely(scsi_host_in_recovery(shost))) { in scsi_dec_host_busy()
282 spin_lock_irqsave(shost->host_lock, flags); in scsi_dec_host_busy()
283 if (shost->host_failed || shost->host_eh_scheduled) in scsi_dec_host_busy()
284 scsi_eh_wakeup(shost); in scsi_dec_host_busy()
285 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_dec_host_busy()
292 struct Scsi_Host *shost = sdev->host; in scsi_device_unbusy() local
295 scsi_dec_host_busy(shost, cmd); in scsi_device_unbusy()
330 struct Scsi_Host *shost = current_sdev->host; in scsi_single_lun_run() local
334 spin_lock_irqsave(shost->host_lock, flags); in scsi_single_lun_run()
336 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_single_lun_run()
346 spin_lock_irqsave(shost->host_lock, flags); in scsi_single_lun_run()
350 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_single_lun_run()
373 static inline bool scsi_host_is_busy(struct Scsi_Host *shost) in scsi_host_is_busy() argument
375 if (atomic_read(&shost->host_blocked) > 0) in scsi_host_is_busy()
377 if (shost->host_self_blocked) in scsi_host_is_busy()
382 static void scsi_starved_list_run(struct Scsi_Host *shost) in scsi_starved_list_run() argument
388 spin_lock_irqsave(shost->host_lock, flags); in scsi_starved_list_run()
389 list_splice_init(&shost->starved_list, &starved_list); in scsi_starved_list_run()
404 if (scsi_host_is_busy(shost)) in scsi_starved_list_run()
412 &shost->starved_list); in scsi_starved_list_run()
429 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_starved_list_run()
434 spin_lock_irqsave(shost->host_lock, flags); in scsi_starved_list_run()
437 list_splice(&starved_list, &shost->starved_list); in scsi_starved_list_run()
438 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_starved_list_run()
469 void scsi_run_host_queues(struct Scsi_Host *shost) in scsi_run_host_queues() argument
473 shost_for_each_device(sdev, shost) in scsi_run_host_queues()
1283 static inline int scsi_target_queue_ready(struct Scsi_Host *shost, in scsi_target_queue_ready() argument
1290 spin_lock_irq(shost->host_lock); in scsi_target_queue_ready()
1293 spin_unlock_irq(shost->host_lock); in scsi_target_queue_ready()
1297 spin_unlock_irq(shost->host_lock); in scsi_target_queue_ready()
1324 spin_lock_irq(shost->host_lock); in scsi_target_queue_ready()
1325 list_move_tail(&sdev->starved_entry, &shost->starved_list); in scsi_target_queue_ready()
1326 spin_unlock_irq(shost->host_lock); in scsi_target_queue_ready()
1339 struct Scsi_Host *shost, in scsi_host_queue_ready() argument
1343 if (atomic_read(&shost->host_blocked) > 0) { in scsi_host_queue_ready()
1344 if (scsi_host_busy(shost) > 0) in scsi_host_queue_ready()
1350 if (atomic_dec_return(&shost->host_blocked) > 0) in scsi_host_queue_ready()
1354 shost_printk(KERN_INFO, shost, in scsi_host_queue_ready()
1358 if (shost->host_self_blocked) in scsi_host_queue_ready()
1363 spin_lock_irq(shost->host_lock); in scsi_host_queue_ready()
1366 spin_unlock_irq(shost->host_lock); in scsi_host_queue_ready()
1374 spin_lock_irq(shost->host_lock); in scsi_host_queue_ready()
1376 list_add_tail(&sdev->starved_entry, &shost->starved_list); in scsi_host_queue_ready()
1377 spin_unlock_irq(shost->host_lock); in scsi_host_queue_ready()
1379 scsi_dec_host_busy(shost, cmd); in scsi_host_queue_ready()
1398 struct Scsi_Host *shost; in scsi_mq_lld_busy() local
1403 shost = sdev->host; in scsi_mq_lld_busy()
1411 if (scsi_host_in_recovery(shost) || scsi_device_is_busy(sdev)) in scsi_mq_lld_busy()
1534 static unsigned int scsi_mq_inline_sgl_size(struct Scsi_Host *shost) in scsi_mq_inline_sgl_size() argument
1536 return min_t(unsigned int, shost->sg_tablesize, SCSI_INLINE_SG_CNT) * in scsi_mq_inline_sgl_size()
1544 struct Scsi_Host *shost = sdev->host; in scsi_prepare_cmd() local
1568 if (!shost->hostt->init_cmd_priv) in scsi_prepare_cmd()
1569 memset(cmd + 1, 0, shost->hostt->cmd_size); in scsi_prepare_cmd()
1577 sg = (void *)cmd + sizeof(struct scsi_cmnd) + shost->hostt->cmd_size; in scsi_prepare_cmd()
1580 if (scsi_host_get_prot(shost)) { in scsi_prepare_cmd()
1709 struct Scsi_Host *shost = sdev->host; in scsi_queue_rq() local
1727 if (!scsi_target_queue_ready(shost, sdev)) in scsi_queue_rq()
1729 if (unlikely(scsi_host_in_recovery(shost))) { in scsi_queue_rq()
1734 if (!scsi_host_queue_ready(q, shost, sdev, cmd)) in scsi_queue_rq()
1768 scsi_dec_host_busy(shost, cmd); in scsi_queue_rq()
1809 struct Scsi_Host *shost = set->driver_data; in scsi_mq_init_request() local
1819 if (scsi_host_get_prot(shost)) { in scsi_mq_init_request()
1821 shost->hostt->cmd_size; in scsi_mq_init_request()
1822 cmd->prot_sdb = (void *)sg + scsi_mq_inline_sgl_size(shost); in scsi_mq_init_request()
1825 if (shost->hostt->init_cmd_priv) { in scsi_mq_init_request()
1826 ret = shost->hostt->init_cmd_priv(shost, cmd); in scsi_mq_init_request()
1837 struct Scsi_Host *shost = set->driver_data; in scsi_mq_exit_request() local
1840 if (shost->hostt->exit_cmd_priv) in scsi_mq_exit_request()
1841 shost->hostt->exit_cmd_priv(shost, cmd); in scsi_mq_exit_request()
1848 struct Scsi_Host *shost = hctx->driver_data; in scsi_mq_poll() local
1850 if (shost->hostt->mq_poll) in scsi_mq_poll()
1851 return shost->hostt->mq_poll(shost, hctx->queue_num); in scsi_mq_poll()
1859 struct Scsi_Host *shost = data; in scsi_init_hctx() local
1861 hctx->driver_data = shost; in scsi_init_hctx()
1867 struct Scsi_Host *shost = container_of(set, struct Scsi_Host, tag_set); in scsi_map_queues() local
1869 if (shost->hostt->map_queues) in scsi_map_queues()
1870 return shost->hostt->map_queues(shost); in scsi_map_queues()
1874 void __scsi_init_queue(struct Scsi_Host *shost, struct request_queue *q) in __scsi_init_queue() argument
1876 struct device *dev = shost->dma_dev; in __scsi_init_queue()
1881 blk_queue_max_segments(q, min_t(unsigned short, shost->sg_tablesize, in __scsi_init_queue()
1884 if (scsi_host_prot_dma(shost)) { in __scsi_init_queue()
1885 shost->sg_prot_tablesize = in __scsi_init_queue()
1886 min_not_zero(shost->sg_prot_tablesize, in __scsi_init_queue()
1888 BUG_ON(shost->sg_prot_tablesize < shost->sg_tablesize); in __scsi_init_queue()
1889 blk_queue_max_integrity_segments(q, shost->sg_prot_tablesize); in __scsi_init_queue()
1892 blk_queue_max_hw_sectors(q, shost->max_sectors); in __scsi_init_queue()
1893 blk_queue_segment_boundary(q, shost->dma_boundary); in __scsi_init_queue()
1894 dma_set_seg_boundary(dev, shost->dma_boundary); in __scsi_init_queue()
1896 blk_queue_max_segment_size(q, shost->max_segment_size); in __scsi_init_queue()
1897 blk_queue_virt_boundary(q, shost->virt_boundary_mask); in __scsi_init_queue()
1934 struct Scsi_Host *shost = hctx->driver_data; in scsi_commit_rqs() local
1936 shost->hostt->commit_rqs(shost, hctx->queue_num); in scsi_commit_rqs()
1960 int scsi_mq_setup_tags(struct Scsi_Host *shost) in scsi_mq_setup_tags() argument
1963 struct blk_mq_tag_set *tag_set = &shost->tag_set; in scsi_mq_setup_tags()
1966 scsi_mq_inline_sgl_size(shost)); in scsi_mq_setup_tags()
1967 cmd_size = sizeof(struct scsi_cmnd) + shost->hostt->cmd_size + sgl_size; in scsi_mq_setup_tags()
1968 if (scsi_host_get_prot(shost)) in scsi_mq_setup_tags()
1973 if (shost->hostt->commit_rqs) in scsi_mq_setup_tags()
1977 tag_set->nr_hw_queues = shost->nr_hw_queues ? : 1; in scsi_mq_setup_tags()
1978 tag_set->nr_maps = shost->nr_maps ? : 1; in scsi_mq_setup_tags()
1979 tag_set->queue_depth = shost->can_queue; in scsi_mq_setup_tags()
1981 tag_set->numa_node = dev_to_node(shost->dma_dev); in scsi_mq_setup_tags()
1984 BLK_ALLOC_POLICY_TO_MQ_FLAG(shost->hostt->tag_alloc_policy); in scsi_mq_setup_tags()
1985 tag_set->driver_data = shost; in scsi_mq_setup_tags()
1986 if (shost->host_tagset) in scsi_mq_setup_tags()
1994 struct Scsi_Host *shost = container_of(kref, typeof(*shost), in scsi_mq_free_tags() local
1997 blk_mq_free_tag_set(&shost->tag_set); in scsi_mq_free_tags()
1998 complete(&shost->tagset_freed); in scsi_mq_free_tags()
2037 void scsi_block_requests(struct Scsi_Host *shost) in scsi_block_requests() argument
2039 shost->host_self_blocked = 1; in scsi_block_requests()
2053 void scsi_unblock_requests(struct Scsi_Host *shost) in scsi_unblock_requests() argument
2055 shost->host_self_blocked = 0; in scsi_unblock_requests()
2056 scsi_run_host_queues(shost); in scsi_unblock_requests()
2943 scsi_host_block(struct Scsi_Host *shost) in scsi_host_block() argument
2952 shost_for_each_device(sdev, shost) { in scsi_host_block()
2966 WARN_ON_ONCE(shost->tag_set.flags & BLK_MQ_F_BLOCKING); in scsi_host_block()
2976 scsi_host_unblock(struct Scsi_Host *shost, int new_state) in scsi_host_unblock() argument
2981 shost_for_each_device(sdev, shost) { in scsi_host_unblock()