160 	struct scsi_device *sdev = cmd->device;  in scsi_finish_command()  local
161 	struct scsi_target *starget = scsi_target(sdev);  in scsi_finish_command()
162 	struct Scsi_Host *shost = sdev->host;  in scsi_finish_command()
166 	scsi_device_unbusy(sdev, cmd);  in scsi_finish_command()
176 	if (atomic_read(&sdev->device_blocked))  in scsi_finish_command()
177 		atomic_set(&sdev->device_blocked, 0);  in scsi_finish_command()
179 	SCSI_LOG_MLCOMPLETE(4, sdev_printk(KERN_INFO, sdev,  in scsi_finish_command()
205 int scsi_device_max_queue_depth(struct scsi_device *sdev)  in scsi_device_max_queue_depth()  argument
207 	return min_t(int, sdev->host->can_queue, 4096);  in scsi_device_max_queue_depth()
217 int scsi_change_queue_depth(struct scsi_device *sdev, int depth)  in scsi_change_queue_depth()  argument
219 	depth = min_t(int, depth, scsi_device_max_queue_depth(sdev));  in scsi_change_queue_depth()
222 		sdev->queue_depth = depth;  in scsi_change_queue_depth()
226 	if (sdev->request_queue)  in scsi_change_queue_depth()
227 		blk_set_queue_depth(sdev->request_queue, depth);  in scsi_change_queue_depth()
229 	sbitmap_resize(&sdev->budget_map, sdev->queue_depth);  in scsi_change_queue_depth()
231 	return sdev->queue_depth;  in scsi_change_queue_depth()
254 int scsi_track_queue_full(struct scsi_device *sdev, int depth)  in scsi_track_queue_full()  argument
262 	if ((jiffies >> 4) == (sdev->last_queue_full_time >> 4))  in scsi_track_queue_full()
265 	sdev->last_queue_full_time = jiffies;  in scsi_track_queue_full()
266 	if (sdev->last_queue_full_depth != depth) {  in scsi_track_queue_full()
267 		sdev->last_queue_full_count = 1;  in scsi_track_queue_full()
268 		sdev->last_queue_full_depth = depth;  in scsi_track_queue_full()
270 		sdev->last_queue_full_count++;  in scsi_track_queue_full()
273 	if (sdev->last_queue_full_count <= 10)  in scsi_track_queue_full()
276 	return scsi_change_queue_depth(sdev, depth);  in scsi_track_queue_full()
292 static int scsi_vpd_inquiry(struct scsi_device *sdev, unsigned char *buffer,  in scsi_vpd_inquiry()  argument
312 	result = scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buffer,  in scsi_vpd_inquiry()
324 static int scsi_get_vpd_size(struct scsi_device *sdev, u8 page)  in scsi_get_vpd_size()  argument
335 	result = scsi_vpd_inquiry(sdev, vpd_header, page, sizeof(vpd_header));  in scsi_get_vpd_size()
340 		dev_warn_once(&sdev->sdev_gendev,  in scsi_get_vpd_size()
362 int scsi_get_vpd_page(struct scsi_device *sdev, u8 page, unsigned char *buf,  in scsi_get_vpd_page()  argument
367 	if (!scsi_device_supports_vpd(sdev))  in scsi_get_vpd_page()
370 	vpd_len = scsi_get_vpd_size(sdev, page);  in scsi_get_vpd_page()
381 	result = scsi_vpd_inquiry(sdev, buf, page, vpd_len);  in scsi_get_vpd_page()
385 		dev_warn_once(&sdev->sdev_gendev,  in scsi_get_vpd_page()
400 static struct scsi_vpd *scsi_get_vpd_buf(struct scsi_device *sdev, u8 page)  in scsi_get_vpd_buf()  argument
405 	vpd_len = scsi_get_vpd_size(sdev, page);  in scsi_get_vpd_buf()
418 	result = scsi_vpd_inquiry(sdev, vpd_buf->data, page, vpd_len);  in scsi_get_vpd_buf()
424 		dev_warn_once(&sdev->sdev_gendev,  in scsi_get_vpd_buf()
437 static void scsi_update_vpd_page(struct scsi_device *sdev, u8 page,  in scsi_update_vpd_page()  argument
442 	vpd_buf = scsi_get_vpd_buf(sdev, page);  in scsi_update_vpd_page()
446 	mutex_lock(&sdev->inquiry_mutex);  in scsi_update_vpd_page()
448 				      lockdep_is_held(&sdev->inquiry_mutex));  in scsi_update_vpd_page()
449 	mutex_unlock(&sdev->inquiry_mutex);  in scsi_update_vpd_page()
464 void scsi_attach_vpd(struct scsi_device *sdev)  in scsi_attach_vpd()  argument
469 	if (!scsi_device_supports_vpd(sdev))  in scsi_attach_vpd()
473 	vpd_buf = scsi_get_vpd_buf(sdev, 0);  in scsi_attach_vpd()
479 			scsi_update_vpd_page(sdev, 0x0, &sdev->vpd_pg0);  in scsi_attach_vpd()
481 			scsi_update_vpd_page(sdev, 0x80, &sdev->vpd_pg80);  in scsi_attach_vpd()
483 			scsi_update_vpd_page(sdev, 0x83, &sdev->vpd_pg83);  in scsi_attach_vpd()
485 			scsi_update_vpd_page(sdev, 0x89, &sdev->vpd_pg89);  in scsi_attach_vpd()
487 			scsi_update_vpd_page(sdev, 0xb0, &sdev->vpd_pgb0);  in scsi_attach_vpd()
489 			scsi_update_vpd_page(sdev, 0xb1, &sdev->vpd_pgb1);  in scsi_attach_vpd()
491 			scsi_update_vpd_page(sdev, 0xb2, &sdev->vpd_pgb2);  in scsi_attach_vpd()
507 int scsi_report_opcode(struct scsi_device *sdev, unsigned char *buffer,  in scsi_report_opcode()  argument
514 	if (sdev->no_report_opcodes || sdev->scsi_level < SCSI_SPC_3)  in scsi_report_opcode()
520 		dev_warn_once(&sdev->sdev_gendev,  in scsi_report_opcode()
534 	result = scsi_execute_req(sdev, cmd, DMA_FROM_DEVICE, buffer,  in scsi_report_opcode()
562 int scsi_device_get(struct scsi_device *sdev)  in scsi_device_get()  argument
564 	if (sdev->sdev_state == SDEV_DEL || sdev->sdev_state == SDEV_CANCEL)  in scsi_device_get()
566 	if (!get_device(&sdev->sdev_gendev))  in scsi_device_get()
568 	if (!try_module_get(sdev->host->hostt->module))  in scsi_device_get()
573 	put_device(&sdev->sdev_gendev);  in scsi_device_get()
587 void scsi_device_put(struct scsi_device *sdev)  in scsi_device_put()  argument
589 	struct module *mod = sdev->host->hostt->module;  in scsi_device_put()
591 	put_device(&sdev->sdev_gendev);  in scsi_device_put()
635 	struct scsi_device *sdev;  in starget_for_each_device()  local
637 	shost_for_each_device(sdev, shost) {  in starget_for_each_device()
638 		if ((sdev->channel == starget->channel) &&  in starget_for_each_device()
639 		    (sdev->id == starget->id))  in starget_for_each_device()
640 			fn(sdev, data);  in starget_for_each_device()
663 	struct scsi_device *sdev;  in __starget_for_each_device()  local
665 	__shost_for_each_device(sdev, shost) {  in __starget_for_each_device()
666 		if ((sdev->channel == starget->channel) &&  in __starget_for_each_device()
667 		    (sdev->id == starget->id))  in __starget_for_each_device()
668 			fn(sdev, data);  in __starget_for_each_device()
691 	struct scsi_device *sdev;  in __scsi_device_lookup_by_target()  local
693 	list_for_each_entry(sdev, &starget->devices, same_target_siblings) {  in __scsi_device_lookup_by_target()
694 		if (sdev->sdev_state == SDEV_DEL)  in __scsi_device_lookup_by_target()
696 		if (sdev->lun ==lun)  in __scsi_device_lookup_by_target()
697 			return sdev;  in __scsi_device_lookup_by_target()
716 	struct scsi_device *sdev;  in scsi_device_lookup_by_target()  local
721 	sdev = __scsi_device_lookup_by_target(starget, lun);  in scsi_device_lookup_by_target()
722 	if (sdev && scsi_device_get(sdev))  in scsi_device_lookup_by_target()
723 		sdev = NULL;  in scsi_device_lookup_by_target()
726 	return sdev;  in scsi_device_lookup_by_target()
749 	struct scsi_device *sdev;  in __scsi_device_lookup()  local
751 	list_for_each_entry(sdev, &shost->__devices, siblings) {  in __scsi_device_lookup()
752 		if (sdev->sdev_state == SDEV_DEL)  in __scsi_device_lookup()
754 		if (sdev->channel == channel && sdev->id == id &&  in __scsi_device_lookup()
755 				sdev->lun ==lun)  in __scsi_device_lookup()
756 			return sdev;  in __scsi_device_lookup()
777 	struct scsi_device *sdev;  in scsi_device_lookup()  local
781 	sdev = __scsi_device_lookup(shost, channel, id, lun);  in scsi_device_lookup()
782 	if (sdev && scsi_device_get(sdev))  in scsi_device_lookup()
783 		sdev = NULL;  in scsi_device_lookup()
786 	return sdev;  in scsi_device_lookup()