1 /* SPDX-License-Identifier: GPL-2.0 */
8 #include <linux/blk-mq.h>
49 				 * originate in the mid-layer) */
86 	/* put union of data structures, for non-simple event types,
92  * struct scsi_vpd - SCSI Vital Product Data
107 	/* the next two are protected by the host->host_lock */
122 	unsigned long queue_ramp_up_period;	/* ramp up period in jiffies */
130 					 * vendor-specific cmd's */
133 	void *hostdata;		/* available to low-level driver */
162 	 * If true, let the high-level device driver (sd) manage the device
169 	 * If true, let the high-level device driver (sd) manage the device
175 	 * If true, let the high-level device driver (sd) manage the device
181 	 * If set and if the device is runtime suspended, ask the high-level
198 	unsigned tagged_supported:1;	/* Supports SCSI-II tagged queuing */
204 	unsigned use_10_for_rw:1; /* first try 10-byte read / write */
205 	unsigned use_10_for_ms:1; /* first try 10-byte mode sense/select */
237 	unsigned rpm_autosuspend:1;	/* Enable runtime autosuspend at device
291 	to_scsi_device(class_dev->parent)
294 	dev_dbg(&(sdev)->sdev_gendev, fmt, ##a)
314 		if (__rq->q->disk)					\
315 			sdev_dbg((scmd)->device, "[%s] " fmt,		\
316 				 __rq->q->disk->disk_name, ##a);	\
318 			sdev_dbg((scmd)->device, fmt, ##a);		\
368 	void 			*hostdata; /* available to low-level driver */
376 	return to_scsi_target(sdev->sdev_gendev.parent);  in scsi_target()
379 	to_scsi_target(class_dev->parent)
382 	dev_printk(prefix, &(starget)->dev, fmt, ##a)
417  * shost_for_each_device - iterate over all devices of a host
431  * __shost_for_each_device - iterate over all devices of a host (UNLOCKED)
437  * protected by shost->host_lock.
444 	list_for_each_entry((sdev), &((shost)->__devices), siblings)
519 	return device_reprobe(&sdev->sdev_gendev);  in scsi_device_reprobe()
524 	return sdev->channel;  in sdev_channel()
529 	return sdev->id;  in sdev_id()
532 #define scmd_id(scmd) sdev_id((scmd)->device)
533 #define scmd_channel(scmd) sdev_channel((scmd)->device)
540 	return (sdev->sdev_state != SDEV_OFFLINE &&  in scsi_device_online()
541 		sdev->sdev_state != SDEV_TRANSPORT_OFFLINE &&  in scsi_device_online()
542 		sdev->sdev_state != SDEV_DEL);  in scsi_device_online()
546 	return sdev->sdev_state == SDEV_BLOCK ||  in scsi_device_blocked()
547 		sdev->sdev_state == SDEV_CREATED_BLOCK;  in scsi_device_blocked()
551 	return sdev->sdev_state == SDEV_CREATED ||  in scsi_device_created()
552 		sdev->sdev_state == SDEV_CREATED_BLOCK;  in scsi_device_created()
562 	return sdev->sdtr;  in scsi_device_sync()
566 	return sdev->wdtr;  in scsi_device_wide()
570 	return sdev->ppr;  in scsi_device_dt()
574 	if (sdev->inquiry_len < 57)  in scsi_device_dt_only()
576 	return (sdev->inquiry[56] & 0x0c) == 0x04;  in scsi_device_dt_only()
580 	if (sdev->inquiry_len < 57)  in scsi_device_ius()
582 	return sdev->inquiry[56] & 0x01;  in scsi_device_ius()
586 	if (sdev->inquiry_len < 57)  in scsi_device_qas()
588 	return sdev->inquiry[56] & 0x02;  in scsi_device_qas()
592 	return sdev->inquiry ? (sdev->inquiry[6] & (1<<6)) : 1;  in scsi_device_enclosure()
597 	if (sdev->no_dif)  in scsi_device_protection()
600 	return sdev->scsi_level > SCSI_2 && sdev->inquiry[5] & (1<<0);  in scsi_device_protection()
605 	return sdev->inquiry ? (sdev->inquiry[5] >> 4) & 0x3 : 0;  in scsi_device_tpgs()
609  * scsi_device_supports_vpd - test if a device supports VPD pages
614  * SCSI level is at least SPC-3 and 'skip_vpd_pages' is not set.
621 	if (sdev->try_vpd_pages)  in scsi_device_supports_vpd()
624 	 * Although VPD inquiries can go to SCSI-2 type devices,  in scsi_device_supports_vpd()
626 	 * we currently ask for are mandatory for SPC-2 and beyond  in scsi_device_supports_vpd()
628 	if (sdev->scsi_level >= SCSI_SPC_2 && !sdev->skip_vpd_pages)  in scsi_device_supports_vpd()
635 	return sbitmap_weight(&sdev->budget_map);  in scsi_device_busy()
639 	MODULE_ALIAS("scsi:t-" __stringify(type) "*")
640 #define SCSI_DEVICE_MODALIAS_FMT "scsi:t-0x%02x"