Lines Matching refs:shost
81 int scsi_init_sense_cache(struct Scsi_Host *shost) in scsi_init_sense_cache() argument
87 cache = scsi_select_sense_cache(shost->unchecked_isa_dma); in scsi_init_sense_cache()
91 if (shost->unchecked_isa_dma) { in scsi_init_sense_cache()
306 static void scsi_dec_host_busy(struct Scsi_Host *shost, struct scsi_cmnd *cmd) in scsi_dec_host_busy() argument
312 if (unlikely(scsi_host_in_recovery(shost))) { in scsi_dec_host_busy()
313 spin_lock_irqsave(shost->host_lock, flags); in scsi_dec_host_busy()
314 if (shost->host_failed || shost->host_eh_scheduled) in scsi_dec_host_busy()
315 scsi_eh_wakeup(shost); in scsi_dec_host_busy()
316 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_dec_host_busy()
323 struct Scsi_Host *shost = sdev->host; in scsi_device_unbusy() local
326 scsi_dec_host_busy(shost, cmd); in scsi_device_unbusy()
348 struct Scsi_Host *shost = current_sdev->host; in scsi_single_lun_run() local
353 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()
365 spin_lock_irqsave(shost->host_lock, flags); in scsi_single_lun_run()
375 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_single_lun_run()
377 spin_lock_irqsave(shost->host_lock, flags); in scsi_single_lun_run()
382 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_single_lun_run()
405 static inline bool scsi_host_is_busy(struct Scsi_Host *shost) in scsi_host_is_busy() argument
407 if (atomic_read(&shost->host_blocked) > 0) in scsi_host_is_busy()
409 if (shost->host_self_blocked) in scsi_host_is_busy()
414 static void scsi_starved_list_run(struct Scsi_Host *shost) in scsi_starved_list_run() argument
420 spin_lock_irqsave(shost->host_lock, flags); in scsi_starved_list_run()
421 list_splice_init(&shost->starved_list, &starved_list); in scsi_starved_list_run()
436 if (scsi_host_is_busy(shost)) in scsi_starved_list_run()
444 &shost->starved_list); in scsi_starved_list_run()
461 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_starved_list_run()
466 spin_lock_irqsave(shost->host_lock, flags); in scsi_starved_list_run()
469 list_splice(&starved_list, &shost->starved_list); in scsi_starved_list_run()
470 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_starved_list_run()
501 void scsi_run_host_queues(struct Scsi_Host *shost) in scsi_run_host_queues() argument
505 shost_for_each_device(sdev, shost) in scsi_run_host_queues()
1289 static inline int scsi_target_queue_ready(struct Scsi_Host *shost, in scsi_target_queue_ready() argument
1296 spin_lock_irq(shost->host_lock); in scsi_target_queue_ready()
1299 spin_unlock_irq(shost->host_lock); in scsi_target_queue_ready()
1303 spin_unlock_irq(shost->host_lock); in scsi_target_queue_ready()
1330 spin_lock_irq(shost->host_lock); in scsi_target_queue_ready()
1331 list_move_tail(&sdev->starved_entry, &shost->starved_list); in scsi_target_queue_ready()
1332 spin_unlock_irq(shost->host_lock); in scsi_target_queue_ready()
1345 struct Scsi_Host *shost, in scsi_host_queue_ready() argument
1349 if (scsi_host_in_recovery(shost)) in scsi_host_queue_ready()
1352 if (atomic_read(&shost->host_blocked) > 0) { in scsi_host_queue_ready()
1353 if (scsi_host_busy(shost) > 0) in scsi_host_queue_ready()
1359 if (atomic_dec_return(&shost->host_blocked) > 0) in scsi_host_queue_ready()
1363 shost_printk(KERN_INFO, shost, in scsi_host_queue_ready()
1367 if (shost->host_self_blocked) in scsi_host_queue_ready()
1372 spin_lock_irq(shost->host_lock); in scsi_host_queue_ready()
1375 spin_unlock_irq(shost->host_lock); in scsi_host_queue_ready()
1383 spin_lock_irq(shost->host_lock); in scsi_host_queue_ready()
1385 list_add_tail(&sdev->starved_entry, &shost->starved_list); in scsi_host_queue_ready()
1386 spin_unlock_irq(shost->host_lock); in scsi_host_queue_ready()
1388 scsi_dec_host_busy(shost, cmd); in scsi_host_queue_ready()
1407 struct Scsi_Host *shost; in scsi_mq_lld_busy() local
1412 shost = sdev->host; in scsi_mq_lld_busy()
1420 if (scsi_host_in_recovery(shost) || scsi_device_is_busy(sdev)) in scsi_mq_lld_busy()
1541 static unsigned int scsi_mq_inline_sgl_size(struct Scsi_Host *shost) in scsi_mq_inline_sgl_size() argument
1543 return min_t(unsigned int, shost->sg_tablesize, SCSI_INLINE_SG_CNT) * in scsi_mq_inline_sgl_size()
1551 struct Scsi_Host *shost = sdev->host; in scsi_prepare_cmd() local
1564 sg = (void *)cmd + sizeof(struct scsi_cmnd) + shost->hostt->cmd_size; in scsi_prepare_cmd()
1567 if (scsi_host_get_prot(shost)) { in scsi_prepare_cmd()
1646 struct Scsi_Host *shost = sdev->host; in scsi_queue_rq() local
1662 if (!scsi_target_queue_ready(shost, sdev)) in scsi_queue_rq()
1664 if (!scsi_host_queue_ready(q, shost, sdev, cmd)) in scsi_queue_rq()
1697 scsi_dec_host_busy(shost, cmd); in scsi_queue_rq()
1740 struct Scsi_Host *shost = set->driver_data; in scsi_mq_init_request() local
1741 const bool unchecked_isa_dma = shost->unchecked_isa_dma; in scsi_mq_init_request()
1754 if (scsi_host_get_prot(shost)) { in scsi_mq_init_request()
1756 shost->hostt->cmd_size; in scsi_mq_init_request()
1757 cmd->prot_sdb = (void *)sg + scsi_mq_inline_sgl_size(shost); in scsi_mq_init_request()
1760 if (shost->hostt->init_cmd_priv) { in scsi_mq_init_request()
1761 ret = shost->hostt->init_cmd_priv(shost, cmd); in scsi_mq_init_request()
1773 struct Scsi_Host *shost = set->driver_data; in scsi_mq_exit_request() local
1776 if (shost->hostt->exit_cmd_priv) in scsi_mq_exit_request()
1777 shost->hostt->exit_cmd_priv(shost, cmd); in scsi_mq_exit_request()
1784 struct Scsi_Host *shost = container_of(set, struct Scsi_Host, tag_set); in scsi_map_queues() local
1786 if (shost->hostt->map_queues) in scsi_map_queues()
1787 return shost->hostt->map_queues(shost); in scsi_map_queues()
1791 void __scsi_init_queue(struct Scsi_Host *shost, struct request_queue *q) in __scsi_init_queue() argument
1793 struct device *dev = shost->dma_dev; in __scsi_init_queue()
1798 blk_queue_max_segments(q, min_t(unsigned short, shost->sg_tablesize, in __scsi_init_queue()
1801 if (scsi_host_prot_dma(shost)) { in __scsi_init_queue()
1802 shost->sg_prot_tablesize = in __scsi_init_queue()
1803 min_not_zero(shost->sg_prot_tablesize, in __scsi_init_queue()
1805 BUG_ON(shost->sg_prot_tablesize < shost->sg_tablesize); in __scsi_init_queue()
1806 blk_queue_max_integrity_segments(q, shost->sg_prot_tablesize); in __scsi_init_queue()
1810 shost->max_sectors = min_t(unsigned int, shost->max_sectors, in __scsi_init_queue()
1813 blk_queue_max_hw_sectors(q, shost->max_sectors); in __scsi_init_queue()
1814 if (shost->unchecked_isa_dma) in __scsi_init_queue()
1816 blk_queue_segment_boundary(q, shost->dma_boundary); in __scsi_init_queue()
1817 dma_set_seg_boundary(dev, shost->dma_boundary); in __scsi_init_queue()
1819 blk_queue_max_segment_size(q, shost->max_segment_size); in __scsi_init_queue()
1820 blk_queue_virt_boundary(q, shost->virt_boundary_mask); in __scsi_init_queue()
1856 struct Scsi_Host *shost = sdev->host; in scsi_commit_rqs() local
1858 shost->hostt->commit_rqs(shost, hctx->queue_num); in scsi_commit_rqs()
1891 int scsi_mq_setup_tags(struct Scsi_Host *shost) in scsi_mq_setup_tags() argument
1894 struct blk_mq_tag_set *tag_set = &shost->tag_set; in scsi_mq_setup_tags()
1897 scsi_mq_inline_sgl_size(shost)); in scsi_mq_setup_tags()
1898 cmd_size = sizeof(struct scsi_cmnd) + shost->hostt->cmd_size + sgl_size; in scsi_mq_setup_tags()
1899 if (scsi_host_get_prot(shost)) in scsi_mq_setup_tags()
1904 if (shost->hostt->commit_rqs) in scsi_mq_setup_tags()
1908 tag_set->nr_hw_queues = shost->nr_hw_queues ? : 1; in scsi_mq_setup_tags()
1909 tag_set->queue_depth = shost->can_queue; in scsi_mq_setup_tags()
1914 BLK_ALLOC_POLICY_TO_MQ_FLAG(shost->hostt->tag_alloc_policy); in scsi_mq_setup_tags()
1915 tag_set->driver_data = shost; in scsi_mq_setup_tags()
1916 if (shost->host_tagset) in scsi_mq_setup_tags()
1922 void scsi_mq_destroy_tags(struct Scsi_Host *shost) in scsi_mq_destroy_tags() argument
1924 blk_mq_free_tag_set(&shost->tag_set); in scsi_mq_destroy_tags()
1955 void scsi_block_requests(struct Scsi_Host *shost) in scsi_block_requests() argument
1957 shost->host_self_blocked = 1; in scsi_block_requests()
1971 void scsi_unblock_requests(struct Scsi_Host *shost) in scsi_unblock_requests() argument
1973 shost->host_self_blocked = 0; in scsi_unblock_requests()
1974 scsi_run_host_queues(shost); in scsi_unblock_requests()
2856 scsi_host_block(struct Scsi_Host *shost) in scsi_host_block() argument
2865 shost_for_each_device(sdev, shost) { in scsi_host_block()
2879 WARN_ON_ONCE(shost->tag_set.flags & BLK_MQ_F_BLOCKING); in scsi_host_block()
2889 scsi_host_unblock(struct Scsi_Host *shost, int new_state) in scsi_host_unblock() argument
2894 shost_for_each_device(sdev, shost) { in scsi_host_unblock()