180 static void scsi_unlock_floptical(struct scsi_device *sdev,  in scsi_unlock_floptical()  argument
185 	sdev_printk(KERN_NOTICE, sdev, "unlocking floptical drive\n");  in scsi_unlock_floptical()
192 	scsi_execute_req(sdev, scsi_cmd, DMA_FROM_DEVICE, result, 0x2a, NULL,  in scsi_unlock_floptical()
213 	struct scsi_device *sdev;  in scsi_alloc_sdev()  local
219 	sdev = kzalloc(sizeof(*sdev) + shost->transportt->device_size,  in scsi_alloc_sdev()
221 	if (!sdev)  in scsi_alloc_sdev()
224 	sdev->vendor = scsi_null_device_strs;  in scsi_alloc_sdev()
225 	sdev->model = scsi_null_device_strs;  in scsi_alloc_sdev()
226 	sdev->rev = scsi_null_device_strs;  in scsi_alloc_sdev()
227 	sdev->host = shost;  in scsi_alloc_sdev()
228 	sdev->queue_ramp_up_period = SCSI_DEFAULT_RAMP_UP_PERIOD;  in scsi_alloc_sdev()
229 	sdev->id = starget->id;  in scsi_alloc_sdev()
230 	sdev->lun = lun;  in scsi_alloc_sdev()
231 	sdev->channel = starget->channel;  in scsi_alloc_sdev()
232 	sdev->sdev_state = SDEV_CREATED;  in scsi_alloc_sdev()
233 	INIT_LIST_HEAD(&sdev->siblings);  in scsi_alloc_sdev()
234 	INIT_LIST_HEAD(&sdev->same_target_siblings);  in scsi_alloc_sdev()
235 	INIT_LIST_HEAD(&sdev->cmd_list);  in scsi_alloc_sdev()
236 	INIT_LIST_HEAD(&sdev->starved_entry);  in scsi_alloc_sdev()
237 	INIT_LIST_HEAD(&sdev->event_list);  in scsi_alloc_sdev()
238 	spin_lock_init(&sdev->list_lock);  in scsi_alloc_sdev()
239 	INIT_WORK(&sdev->event_work, scsi_evt_thread);  in scsi_alloc_sdev()
240 	INIT_WORK(&sdev->requeue_work, scsi_requeue_run_queue);  in scsi_alloc_sdev()
242 	sdev->sdev_gendev.parent = get_device(&starget->dev);  in scsi_alloc_sdev()
243 	sdev->sdev_target = starget;  in scsi_alloc_sdev()
246 	sdev->hostdata = hostdata;  in scsi_alloc_sdev()
250 	sdev->max_device_blocked = SCSI_DEFAULT_DEVICE_BLOCKED;  in scsi_alloc_sdev()
255 	sdev->type = -1;  in scsi_alloc_sdev()
262 	sdev->borken = 1;  in scsi_alloc_sdev()
265 		sdev->request_queue = scsi_mq_alloc_queue(sdev);  in scsi_alloc_sdev()
267 		sdev->request_queue = scsi_alloc_queue(sdev);  in scsi_alloc_sdev()
268 	if (!sdev->request_queue) {  in scsi_alloc_sdev()
272 		kfree(sdev);  in scsi_alloc_sdev()
275 	WARN_ON_ONCE(!blk_get_queue(sdev->request_queue));  in scsi_alloc_sdev()
276 	sdev->request_queue->queuedata = sdev;  in scsi_alloc_sdev()
278 	if (!shost_use_blk_mq(sdev->host)) {  in scsi_alloc_sdev()
279 		blk_queue_init_tags(sdev->request_queue,  in scsi_alloc_sdev()
280 				    sdev->host->cmd_per_lun, shost->bqt,  in scsi_alloc_sdev()
283 	scsi_change_queue_depth(sdev, sdev->host->cmd_per_lun ?  in scsi_alloc_sdev()
284 					sdev->host->cmd_per_lun : 1);  in scsi_alloc_sdev()
286 	scsi_sysfs_device_initialize(sdev);  in scsi_alloc_sdev()
289 		ret = shost->hostt->slave_alloc(sdev);  in scsi_alloc_sdev()
301 	return sdev;  in scsi_alloc_sdev()
304 	__scsi_remove_device(sdev);  in scsi_alloc_sdev()
560 static int scsi_probe_lun(struct scsi_device *sdev, unsigned char *inq_result,  in scsi_probe_lun()  argument
574 	first_inquiry_len = sdev->inquiry_len ? sdev->inquiry_len : 36;  in scsi_probe_lun()
579 	SCSI_LOG_SCAN_BUS(3, sdev_printk(KERN_INFO, sdev,  in scsi_probe_lun()
593 		result = scsi_execute_req(sdev,  scsi_cmd, DMA_FROM_DEVICE,  in scsi_probe_lun()
598 		SCSI_LOG_SCAN_BUS(3, sdev_printk(KERN_INFO, sdev,  in scsi_probe_lun()
645 		*bflags = scsi_get_device_flags(sdev, &inq_result[8],  in scsi_probe_lun()
655 			else if (sdev->inquiry_len)  in scsi_probe_lun()
656 				next_inquiry_len = sdev->inquiry_len;  in scsi_probe_lun()
669 		sdev_printk(KERN_INFO, sdev,  in scsi_probe_lun()
687 	sdev->inquiry_len = min(try_inquiry_len, response_len);  in scsi_probe_lun()
704 	if (sdev->inquiry_len < 36) {  in scsi_probe_lun()
705 		if (!sdev->host->short_inquiry) {  in scsi_probe_lun()
706 			shost_printk(KERN_INFO, sdev->host,  in scsi_probe_lun()
708 				    " using 36\n", sdev->inquiry_len);  in scsi_probe_lun()
709 			sdev->host->short_inquiry = 1;  in scsi_probe_lun()
711 		sdev->inquiry_len = 36;  in scsi_probe_lun()
732 	sdev->scsi_level = inq_result[2] & 0x07;  in scsi_probe_lun()
733 	if (sdev->scsi_level >= 2 ||  in scsi_probe_lun()
734 	    (sdev->scsi_level == 1 && (inq_result[3] & 0x0f) == 1))  in scsi_probe_lun()
735 		sdev->scsi_level++;  in scsi_probe_lun()
736 	sdev->sdev_target->scsi_level = sdev->scsi_level;  in scsi_probe_lun()
742 	sdev->lun_in_cdb = 0;  in scsi_probe_lun()
743 	if (sdev->scsi_level <= SCSI_2 &&  in scsi_probe_lun()
744 	    sdev->scsi_level != SCSI_UNKNOWN &&  in scsi_probe_lun()
745 	    !sdev->host->no_scsi2_lun_in_cdb)  in scsi_probe_lun()
746 		sdev->lun_in_cdb = 1;  in scsi_probe_lun()
766 static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,  in scsi_add_lun()  argument
791 	sdev->inquiry = kmemdup(inq_result,  in scsi_add_lun()
792 				max_t(size_t, sdev->inquiry_len, 36),  in scsi_add_lun()
794 	if (sdev->inquiry == NULL)  in scsi_add_lun()
797 	sdev->vendor = (char *) (sdev->inquiry + 8);  in scsi_add_lun()
798 	sdev->model = (char *) (sdev->inquiry + 16);  in scsi_add_lun()
799 	sdev->rev = (char *) (sdev->inquiry + 32);  in scsi_add_lun()
801 	if (strncmp(sdev->vendor, "ATA     ", 8) == 0) {  in scsi_add_lun()
808 		sdev->allow_restart = 1;  in scsi_add_lun()
812 		sdev->type = TYPE_ROM;  in scsi_add_lun()
813 		sdev->removable = 1;  in scsi_add_lun()
815 		sdev->type = (inq_result[0] & 0x1f);  in scsi_add_lun()
816 		sdev->removable = (inq_result[1] & 0x80) >> 7;  in scsi_add_lun()
823 		if (scsi_is_wlun(sdev->lun) && sdev->type != TYPE_WLUN) {  in scsi_add_lun()
824 			sdev_printk(KERN_WARNING, sdev,  in scsi_add_lun()
826 				__func__, sdev->type, (unsigned int)sdev->lun);  in scsi_add_lun()
827 			sdev->type = TYPE_WLUN;  in scsi_add_lun()
832 	if (sdev->type == TYPE_RBC || sdev->type == TYPE_ROM) {  in scsi_add_lun()
857 	sdev->inq_periph_qual = (inq_result[0] >> 5) & 7;  in scsi_add_lun()
858 	sdev->lockable = sdev->removable;  in scsi_add_lun()
859 	sdev->soft_reset = (inq_result[7] & 1) && ((inq_result[3] & 7) == 2);  in scsi_add_lun()
861 	if (sdev->scsi_level >= SCSI_3 ||  in scsi_add_lun()
862 			(sdev->inquiry_len > 56 && inq_result[56] & 0x04))  in scsi_add_lun()
863 		sdev->ppr = 1;  in scsi_add_lun()
865 		sdev->wdtr = 1;  in scsi_add_lun()
867 		sdev->sdtr = 1;  in scsi_add_lun()
869 	sdev_printk(KERN_NOTICE, sdev, "%s %.8s %.16s %.4s PQ: %d "  in scsi_add_lun()
870 			"ANSI: %d%s\n", scsi_device_type(sdev->type),  in scsi_add_lun()
871 			sdev->vendor, sdev->model, sdev->rev,  in scsi_add_lun()
872 			sdev->inq_periph_qual, inq_result[2] & 0x07,  in scsi_add_lun()
875 	if ((sdev->scsi_level >= SCSI_2) && (inq_result[7] & 2) &&  in scsi_add_lun()
877 		sdev->tagged_supported = 1;  in scsi_add_lun()
878 		sdev->simple_tags = 1;  in scsi_add_lun()
887 		sdev->borken = 0;  in scsi_add_lun()
890 		sdev->no_uld_attach = 1;  in scsi_add_lun()
897 		sdev->select_no_atn = 1;  in scsi_add_lun()
904 		blk_queue_max_hw_sectors(sdev->request_queue, 512);  in scsi_add_lun()
910 		blk_queue_max_hw_sectors(sdev->request_queue, 1024);  in scsi_add_lun()
917 		sdev->no_start_on_add = 1;  in scsi_add_lun()
920 		scsi_target(sdev)->single_lun = 1;  in scsi_add_lun()
922 	sdev->use_10_for_rw = 1;  in scsi_add_lun()
925 		sdev->skip_ms_page_8 = 1;  in scsi_add_lun()
928 		sdev->skip_ms_page_3f = 1;  in scsi_add_lun()
931 		sdev->use_10_for_ms = 1;  in scsi_add_lun()
937 		sdev->no_report_opcodes = 1;  in scsi_add_lun()
941 	ret = scsi_device_set_state(sdev, SDEV_RUNNING);  in scsi_add_lun()
943 		ret = scsi_device_set_state(sdev, SDEV_BLOCK);  in scsi_add_lun()
946 			sdev_printk(KERN_ERR, sdev,  in scsi_add_lun()
948 				    scsi_device_state_name(sdev->sdev_state));  in scsi_add_lun()
954 		sdev->use_192_bytes_for_3f = 1;  in scsi_add_lun()
957 		sdev->lockable = 0;  in scsi_add_lun()
960 		sdev->retry_hwerror = 1;  in scsi_add_lun()
963 		sdev->no_dif = 1;  in scsi_add_lun()
965 	sdev->eh_timeout = SCSI_DEFAULT_EH_TIMEOUT;  in scsi_add_lun()
968 		sdev->try_vpd_pages = 1;  in scsi_add_lun()
970 		sdev->skip_vpd_pages = 1;  in scsi_add_lun()
972 	transport_configure_device(&sdev->sdev_gendev);  in scsi_add_lun()
974 	if (sdev->host->hostt->slave_configure) {  in scsi_add_lun()
975 		ret = sdev->host->hostt->slave_configure(sdev);  in scsi_add_lun()
982 				sdev_printk(KERN_ERR, sdev,  in scsi_add_lun()
989 	if (sdev->scsi_level >= SCSI_3)  in scsi_add_lun()
990 		scsi_attach_vpd(sdev);  in scsi_add_lun()
992 	sdev->max_queue_depth = sdev->queue_depth;  in scsi_add_lun()
999 	if (!async && scsi_sysfs_add_sdev(sdev) != 0)  in scsi_add_lun()
1055 	struct scsi_device *sdev;  in scsi_probe_and_add_lun()  local
1064 	sdev = scsi_device_lookup_by_target(starget, lun);  in scsi_probe_and_add_lun()
1065 	if (sdev) {  in scsi_probe_and_add_lun()
1066 		if (rescan || !scsi_device_created(sdev)) {  in scsi_probe_and_add_lun()
1067 			SCSI_LOG_SCAN_BUS(3, sdev_printk(KERN_INFO, sdev,  in scsi_probe_and_add_lun()
1069 				dev_name(&sdev->sdev_gendev)));  in scsi_probe_and_add_lun()
1071 				*sdevp = sdev;  in scsi_probe_and_add_lun()
1073 				scsi_device_put(sdev);  in scsi_probe_and_add_lun()
1076 				*bflagsp = scsi_get_device_flags(sdev,  in scsi_probe_and_add_lun()
1077 								 sdev->vendor,  in scsi_probe_and_add_lun()
1078 								 sdev->model);  in scsi_probe_and_add_lun()
1081 		scsi_device_put(sdev);  in scsi_probe_and_add_lun()
1083 		sdev = scsi_alloc_sdev(starget, lun, hostdata);  in scsi_probe_and_add_lun()
1084 	if (!sdev)  in scsi_probe_and_add_lun()
1092 	if (scsi_probe_lun(sdev, result, result_len, &bflags))  in scsi_probe_and_add_lun()
1111 		SCSI_LOG_SCAN_BUS(2, sdev_printk(KERN_INFO, sdev, "scsi scan:"  in scsi_probe_and_add_lun()
1119 				sdev_printk(KERN_INFO, sdev,  in scsi_probe_and_add_lun()
1154 		SCSI_LOG_SCAN_BUS(3, sdev_printk(KERN_INFO, sdev,  in scsi_probe_and_add_lun()
1161 	res = scsi_add_lun(sdev, result, &bflags, shost->async_scan);  in scsi_probe_and_add_lun()
1164 			sdev->lockable = 0;  in scsi_probe_and_add_lun()
1165 			scsi_unlock_floptical(sdev, result);  in scsi_probe_and_add_lun()
1174 			if (scsi_device_get(sdev) == 0) {  in scsi_probe_and_add_lun()
1175 				*sdevp = sdev;  in scsi_probe_and_add_lun()
1177 				__scsi_remove_device(sdev);  in scsi_probe_and_add_lun()
1182 		__scsi_remove_device(sdev);  in scsi_probe_and_add_lun()
1308 	struct scsi_device *sdev;  in scsi_report_lun_scan()  local
1331 	if (!(sdev = scsi_device_lookup_by_target(starget, 0))) {  in scsi_report_lun_scan()
1332 		sdev = scsi_alloc_sdev(starget, 0, NULL);  in scsi_report_lun_scan()
1333 		if (!sdev)  in scsi_report_lun_scan()
1335 		if (scsi_device_get(sdev)) {  in scsi_report_lun_scan()
1336 			__scsi_remove_device(sdev);  in scsi_report_lun_scan()
1342 		shost->host_no, sdev->channel, sdev->id);  in scsi_report_lun_scan()
1352 			   (sdev->host->unchecked_isa_dma ? __GFP_DMA : 0));  in scsi_report_lun_scan()
1384 		SCSI_LOG_SCAN_BUS(3, sdev_printk (KERN_INFO, sdev,  in scsi_report_lun_scan()
1388 		result = scsi_execute_req(sdev, scsi_cmd, DMA_FROM_DEVICE,  in scsi_report_lun_scan()
1392 		SCSI_LOG_SCAN_BUS(3, sdev_printk (KERN_INFO, sdev,  in scsi_report_lun_scan()
1427 	SCSI_LOG_SCAN_BUS(3, sdev_printk (KERN_INFO, sdev,  in scsi_report_lun_scan()
1437 		if (lun > sdev->host->max_lun) {  in scsi_report_lun_scan()
1438 			sdev_printk(KERN_WARNING, sdev,  in scsi_report_lun_scan()
1450 				sdev_printk(KERN_ERR, sdev,  in scsi_report_lun_scan()
1462 	scsi_device_put(sdev);  in scsi_report_lun_scan()
1463 	if (scsi_device_created(sdev))  in scsi_report_lun_scan()
1467 		__scsi_remove_device(sdev);  in scsi_report_lun_scan()
1474 	struct scsi_device *sdev = ERR_PTR(-ENODEV);  in __scsi_add_device()  local
1491 		scsi_probe_and_add_lun(starget, lun, NULL, &sdev, 1, hostdata);  in __scsi_add_device()
1503 	return sdev;  in __scsi_add_device()
1510 	struct scsi_device *sdev =   in scsi_add_device()  local
1512 	if (IS_ERR(sdev))  in scsi_add_device()
1513 		return PTR_ERR(sdev);  in scsi_add_device()
1515 	scsi_device_put(sdev);  in scsi_add_device()
1686 	struct scsi_device *sdev;  in scsi_sysfs_add_devices()  local
1687 	shost_for_each_device(sdev, shost) {  in scsi_sysfs_add_devices()
1689 		if (sdev->sdev_state == SDEV_DEL)  in scsi_sysfs_add_devices()
1692 		if (sdev->is_visible)  in scsi_sysfs_add_devices()
1695 		    scsi_sysfs_add_sdev(sdev) != 0)  in scsi_sysfs_add_devices()
1696 			__scsi_remove_device(sdev);  in scsi_sysfs_add_devices()
1856 	struct scsi_device *sdev;  in scsi_forget_host()  local
1861 	list_for_each_entry(sdev, &shost->__devices, siblings) {  in scsi_forget_host()
1862 		if (sdev->sdev_state == SDEV_DEL)  in scsi_forget_host()
1865 		__scsi_remove_device(sdev);  in scsi_forget_host()
1890 	struct scsi_device *sdev = NULL;  in scsi_get_host_dev()  local
1900 	sdev = scsi_alloc_sdev(starget, 0, NULL);  in scsi_get_host_dev()
1901 	if (sdev)  in scsi_get_host_dev()
1902 		sdev->borken = 0;  in scsi_get_host_dev()
1908 	return sdev;  in scsi_get_host_dev()
1920 void scsi_free_host_dev(struct scsi_device *sdev)  in scsi_free_host_dev()  argument
1922 	BUG_ON(sdev->id != sdev->host->this_id);  in scsi_free_host_dev()
1924 	__scsi_remove_device(sdev);  in scsi_free_host_dev()