ARM: dts: stm32: add gadget fifo sizes to usbotg_hs on stm32f746
[linux/fpc-iii.git] / include / scsi / scsi_device.h
blob7ae177c8e3993c0c39ac6539d149509b575cc1ec
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _SCSI_SCSI_DEVICE_H
3 #define _SCSI_SCSI_DEVICE_H
5 #include <linux/list.h>
6 #include <linux/spinlock.h>
7 #include <linux/workqueue.h>
8 #include <linux/blkdev.h>
9 #include <scsi/scsi.h>
10 #include <linux/atomic.h>
12 struct device;
13 struct request_queue;
14 struct scsi_cmnd;
15 struct scsi_lun;
16 struct scsi_sense_hdr;
18 typedef unsigned int __bitwise blist_flags_t;
20 struct scsi_mode_data {
21 __u32 length;
22 __u16 block_descriptor_length;
23 __u8 medium_type;
24 __u8 device_specific;
25 __u8 header_length;
26 __u8 longlba:1;
30 * sdev state: If you alter this, you also need to alter scsi_sysfs.c
31 * (for the ascii descriptions) and the state model enforcer:
32 * scsi_lib:scsi_device_set_state().
34 enum scsi_device_state {
35 SDEV_CREATED = 1, /* device created but not added to sysfs
36 * Only internal commands allowed (for inq) */
37 SDEV_RUNNING, /* device properly configured
38 * All commands allowed */
39 SDEV_CANCEL, /* beginning to delete device
40 * Only error handler commands allowed */
41 SDEV_DEL, /* device deleted
42 * no commands allowed */
43 SDEV_QUIESCE, /* Device quiescent. No block commands
44 * will be accepted, only specials (which
45 * originate in the mid-layer) */
46 SDEV_OFFLINE, /* Device offlined (by error handling or
47 * user request */
48 SDEV_TRANSPORT_OFFLINE, /* Offlined by transport class error handler */
49 SDEV_BLOCK, /* Device blocked by scsi lld. No
50 * scsi commands from user or midlayer
51 * should be issued to the scsi
52 * lld. */
53 SDEV_CREATED_BLOCK, /* same as above but for created devices */
56 enum scsi_scan_mode {
57 SCSI_SCAN_INITIAL = 0,
58 SCSI_SCAN_RESCAN,
59 SCSI_SCAN_MANUAL,
62 enum scsi_device_event {
63 SDEV_EVT_MEDIA_CHANGE = 1, /* media has changed */
64 SDEV_EVT_INQUIRY_CHANGE_REPORTED, /* 3F 03 UA reported */
65 SDEV_EVT_CAPACITY_CHANGE_REPORTED, /* 2A 09 UA reported */
66 SDEV_EVT_SOFT_THRESHOLD_REACHED_REPORTED, /* 38 07 UA reported */
67 SDEV_EVT_MODE_PARAMETER_CHANGE_REPORTED, /* 2A 01 UA reported */
68 SDEV_EVT_LUN_CHANGE_REPORTED, /* 3F 0E UA reported */
69 SDEV_EVT_ALUA_STATE_CHANGE_REPORTED, /* 2A 06 UA reported */
70 SDEV_EVT_POWER_ON_RESET_OCCURRED, /* 29 00 UA reported */
72 SDEV_EVT_FIRST = SDEV_EVT_MEDIA_CHANGE,
73 SDEV_EVT_LAST = SDEV_EVT_POWER_ON_RESET_OCCURRED,
75 SDEV_EVT_MAXBITS = SDEV_EVT_LAST + 1
78 struct scsi_event {
79 enum scsi_device_event evt_type;
80 struct list_head node;
82 /* put union of data structures, for non-simple event types,
83 * here
87 /**
88 * struct scsi_vpd - SCSI Vital Product Data
89 * @rcu: For kfree_rcu().
90 * @len: Length in bytes of @data.
91 * @data: VPD data as defined in various T10 SCSI standard documents.
93 struct scsi_vpd {
94 struct rcu_head rcu;
95 int len;
96 unsigned char data[];
99 struct scsi_device {
100 struct Scsi_Host *host;
101 struct request_queue *request_queue;
103 /* the next two are protected by the host->host_lock */
104 struct list_head siblings; /* list of all devices on this host */
105 struct list_head same_target_siblings; /* just the devices sharing same target id */
107 atomic_t device_busy; /* commands actually active on LLDD */
108 atomic_t device_blocked; /* Device returned QUEUE_FULL. */
110 spinlock_t list_lock;
111 struct list_head cmd_list; /* queue of in use SCSI Command structures */
112 struct list_head starved_entry;
113 unsigned short queue_depth; /* How deep of a queue we want */
114 unsigned short max_queue_depth; /* max queue depth */
115 unsigned short last_queue_full_depth; /* These two are used by */
116 unsigned short last_queue_full_count; /* scsi_track_queue_full() */
117 unsigned long last_queue_full_time; /* last queue full time */
118 unsigned long queue_ramp_up_period; /* ramp up period in jiffies */
119 #define SCSI_DEFAULT_RAMP_UP_PERIOD (120 * HZ)
121 unsigned long last_queue_ramp_up; /* last queue ramp up time */
123 unsigned int id, channel;
124 u64 lun;
125 unsigned int manufacturer; /* Manufacturer of device, for using
126 * vendor-specific cmd's */
127 unsigned sector_size; /* size in bytes */
129 void *hostdata; /* available to low-level driver */
130 unsigned char type;
131 char scsi_level;
132 char inq_periph_qual; /* PQ from INQUIRY data */
133 struct mutex inquiry_mutex;
134 unsigned char inquiry_len; /* valid bytes in 'inquiry' */
135 unsigned char * inquiry; /* INQUIRY response data */
136 const char * vendor; /* [back_compat] point into 'inquiry' ... */
137 const char * model; /* ... after scan; point to static string */
138 const char * rev; /* ... "nullnullnullnull" before scan */
140 #define SCSI_VPD_PG_LEN 255
141 struct scsi_vpd __rcu *vpd_pg83;
142 struct scsi_vpd __rcu *vpd_pg80;
143 unsigned char current_tag; /* current tag */
144 struct scsi_target *sdev_target; /* used only for single_lun */
146 blist_flags_t sdev_bflags; /* black/white flags as also found in
147 * scsi_devinfo.[hc]. For now used only to
148 * pass settings from slave_alloc to scsi
149 * core. */
150 unsigned int eh_timeout; /* Error handling timeout */
151 unsigned removable:1;
152 unsigned changed:1; /* Data invalid due to media change */
153 unsigned busy:1; /* Used to prevent races */
154 unsigned lockable:1; /* Able to prevent media removal */
155 unsigned locked:1; /* Media removal disabled */
156 unsigned borken:1; /* Tell the Seagate driver to be
157 * painfully slow on this device */
158 unsigned disconnect:1; /* can disconnect */
159 unsigned soft_reset:1; /* Uses soft reset option */
160 unsigned sdtr:1; /* Device supports SDTR messages */
161 unsigned wdtr:1; /* Device supports WDTR messages */
162 unsigned ppr:1; /* Device supports PPR messages */
163 unsigned tagged_supported:1; /* Supports SCSI-II tagged queuing */
164 unsigned simple_tags:1; /* simple queue tag messages are enabled */
165 unsigned was_reset:1; /* There was a bus reset on the bus for
166 * this device */
167 unsigned expecting_cc_ua:1; /* Expecting a CHECK_CONDITION/UNIT_ATTN
168 * because we did a bus reset. */
169 unsigned use_10_for_rw:1; /* first try 10-byte read / write */
170 unsigned use_10_for_ms:1; /* first try 10-byte mode sense/select */
171 unsigned no_report_opcodes:1; /* no REPORT SUPPORTED OPERATION CODES */
172 unsigned no_write_same:1; /* no WRITE SAME command */
173 unsigned use_16_for_rw:1; /* Use read/write(16) over read/write(10) */
174 unsigned skip_ms_page_8:1; /* do not use MODE SENSE page 0x08 */
175 unsigned skip_ms_page_3f:1; /* do not use MODE SENSE page 0x3f */
176 unsigned skip_vpd_pages:1; /* do not read VPD pages */
177 unsigned try_vpd_pages:1; /* attempt to read VPD pages */
178 unsigned use_192_bytes_for_3f:1; /* ask for 192 bytes from page 0x3f */
179 unsigned no_start_on_add:1; /* do not issue start on add */
180 unsigned allow_restart:1; /* issue START_UNIT in error handler */
181 unsigned manage_start_stop:1; /* Let HLD (sd) manage start/stop */
182 unsigned start_stop_pwr_cond:1; /* Set power cond. in START_STOP_UNIT */
183 unsigned no_uld_attach:1; /* disable connecting to upper level drivers */
184 unsigned select_no_atn:1;
185 unsigned fix_capacity:1; /* READ_CAPACITY is too high by 1 */
186 unsigned guess_capacity:1; /* READ_CAPACITY might be too high by 1 */
187 unsigned retry_hwerror:1; /* Retry HARDWARE_ERROR */
188 unsigned last_sector_bug:1; /* do not use multisector accesses on
189 SD_LAST_BUGGY_SECTORS */
190 unsigned no_read_disc_info:1; /* Avoid READ_DISC_INFO cmds */
191 unsigned no_read_capacity_16:1; /* Avoid READ_CAPACITY_16 cmds */
192 unsigned try_rc_10_first:1; /* Try READ_CAPACACITY_10 first */
193 unsigned security_supported:1; /* Supports Security Protocols */
194 unsigned is_visible:1; /* is the device visible in sysfs */
195 unsigned wce_default_on:1; /* Cache is ON by default */
196 unsigned no_dif:1; /* T10 PI (DIF) should be disabled */
197 unsigned broken_fua:1; /* Don't set FUA bit */
198 unsigned lun_in_cdb:1; /* Store LUN bits in CDB[1] */
199 unsigned unmap_limit_for_ws:1; /* Use the UNMAP limit for WRITE SAME */
201 atomic_t disk_events_disable_depth; /* disable depth for disk events */
203 DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */
204 DECLARE_BITMAP(pending_events, SDEV_EVT_MAXBITS); /* pending events */
205 struct list_head event_list; /* asserted events */
206 struct work_struct event_work;
208 unsigned int max_device_blocked; /* what device_blocked counts down from */
209 #define SCSI_DEFAULT_DEVICE_BLOCKED 3
211 atomic_t iorequest_cnt;
212 atomic_t iodone_cnt;
213 atomic_t ioerr_cnt;
215 struct device sdev_gendev,
216 sdev_dev;
218 struct execute_work ew; /* used to get process context on put */
219 struct work_struct requeue_work;
221 struct scsi_device_handler *handler;
222 void *handler_data;
224 unsigned char access_state;
225 struct mutex state_mutex;
226 enum scsi_device_state sdev_state;
227 struct task_struct *quiesced_by;
228 unsigned long sdev_data[0];
229 } __attribute__((aligned(sizeof(unsigned long))));
231 #define to_scsi_device(d) \
232 container_of(d, struct scsi_device, sdev_gendev)
233 #define class_to_sdev(d) \
234 container_of(d, struct scsi_device, sdev_dev)
235 #define transport_class_to_sdev(class_dev) \
236 to_scsi_device(class_dev->parent)
238 #define sdev_dbg(sdev, fmt, a...) \
239 dev_dbg(&(sdev)->sdev_gendev, fmt, ##a)
242 * like scmd_printk, but the device name is passed in
243 * as a string pointer
245 __printf(4, 5) void
246 sdev_prefix_printk(const char *, const struct scsi_device *, const char *,
247 const char *, ...);
249 #define sdev_printk(l, sdev, fmt, a...) \
250 sdev_prefix_printk(l, sdev, NULL, fmt, ##a)
252 __printf(3, 4) void
253 scmd_printk(const char *, const struct scsi_cmnd *, const char *, ...);
255 #define scmd_dbg(scmd, fmt, a...) \
256 do { \
257 if ((scmd)->request->rq_disk) \
258 sdev_dbg((scmd)->device, "[%s] " fmt, \
259 (scmd)->request->rq_disk->disk_name, ##a);\
260 else \
261 sdev_dbg((scmd)->device, fmt, ##a); \
262 } while (0)
264 enum scsi_target_state {
265 STARGET_CREATED = 1,
266 STARGET_RUNNING,
267 STARGET_REMOVE,
268 STARGET_CREATED_REMOVE,
269 STARGET_DEL,
273 * scsi_target: representation of a scsi target, for now, this is only
274 * used for single_lun devices. If no one has active IO to the target,
275 * starget_sdev_user is NULL, else it points to the active sdev.
277 struct scsi_target {
278 struct scsi_device *starget_sdev_user;
279 struct list_head siblings;
280 struct list_head devices;
281 struct device dev;
282 struct kref reap_ref; /* last put renders target invisible */
283 unsigned int channel;
284 unsigned int id; /* target id ... replace
285 * scsi_device.id eventually */
286 unsigned int create:1; /* signal that it needs to be added */
287 unsigned int single_lun:1; /* Indicates we should only
288 * allow I/O to one of the luns
289 * for the device at a time. */
290 unsigned int pdt_1f_for_no_lun:1; /* PDT = 0x1f
291 * means no lun present. */
292 unsigned int no_report_luns:1; /* Don't use
293 * REPORT LUNS for scanning. */
294 unsigned int expecting_lun_change:1; /* A device has reported
295 * a 3F/0E UA, other devices on
296 * the same target will also. */
297 /* commands actually active on LLD. */
298 atomic_t target_busy;
299 atomic_t target_blocked;
302 * LLDs should set this in the slave_alloc host template callout.
303 * If set to zero then there is not limit.
305 unsigned int can_queue;
306 unsigned int max_target_blocked;
307 #define SCSI_DEFAULT_TARGET_BLOCKED 3
309 char scsi_level;
310 enum scsi_target_state state;
311 void *hostdata; /* available to low-level driver */
312 unsigned long starget_data[0]; /* for the transport */
313 /* starget_data must be the last element!!!! */
314 } __attribute__((aligned(sizeof(unsigned long))));
316 #define to_scsi_target(d) container_of(d, struct scsi_target, dev)
317 static inline struct scsi_target *scsi_target(struct scsi_device *sdev)
319 return to_scsi_target(sdev->sdev_gendev.parent);
321 #define transport_class_to_starget(class_dev) \
322 to_scsi_target(class_dev->parent)
324 #define starget_printk(prefix, starget, fmt, a...) \
325 dev_printk(prefix, &(starget)->dev, fmt, ##a)
327 extern struct scsi_device *__scsi_add_device(struct Scsi_Host *,
328 uint, uint, u64, void *hostdata);
329 extern int scsi_add_device(struct Scsi_Host *host, uint channel,
330 uint target, u64 lun);
331 extern int scsi_register_device_handler(struct scsi_device_handler *scsi_dh);
332 extern void scsi_remove_device(struct scsi_device *);
333 extern int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh);
334 void scsi_attach_vpd(struct scsi_device *sdev);
336 extern struct scsi_device *scsi_device_from_queue(struct request_queue *q);
337 extern int __must_check scsi_device_get(struct scsi_device *);
338 extern void scsi_device_put(struct scsi_device *);
339 extern struct scsi_device *scsi_device_lookup(struct Scsi_Host *,
340 uint, uint, u64);
341 extern struct scsi_device *__scsi_device_lookup(struct Scsi_Host *,
342 uint, uint, u64);
343 extern struct scsi_device *scsi_device_lookup_by_target(struct scsi_target *,
344 u64);
345 extern struct scsi_device *__scsi_device_lookup_by_target(struct scsi_target *,
346 u64);
347 extern void starget_for_each_device(struct scsi_target *, void *,
348 void (*fn)(struct scsi_device *, void *));
349 extern void __starget_for_each_device(struct scsi_target *, void *,
350 void (*fn)(struct scsi_device *,
351 void *));
353 /* only exposed to implement shost_for_each_device */
354 extern struct scsi_device *__scsi_iterate_devices(struct Scsi_Host *,
355 struct scsi_device *);
358 * shost_for_each_device - iterate over all devices of a host
359 * @sdev: the &struct scsi_device to use as a cursor
360 * @shost: the &struct scsi_host to iterate over
362 * Iterator that returns each device attached to @shost. This loop
363 * takes a reference on each device and releases it at the end. If
364 * you break out of the loop, you must call scsi_device_put(sdev).
366 #define shost_for_each_device(sdev, shost) \
367 for ((sdev) = __scsi_iterate_devices((shost), NULL); \
368 (sdev); \
369 (sdev) = __scsi_iterate_devices((shost), (sdev)))
372 * __shost_for_each_device - iterate over all devices of a host (UNLOCKED)
373 * @sdev: the &struct scsi_device to use as a cursor
374 * @shost: the &struct scsi_host to iterate over
376 * Iterator that returns each device attached to @shost. It does _not_
377 * take a reference on the scsi_device, so the whole loop must be
378 * protected by shost->host_lock.
380 * Note: The only reason to use this is because you need to access the
381 * device list in interrupt context. Otherwise you really want to use
382 * shost_for_each_device instead.
384 #define __shost_for_each_device(sdev, shost) \
385 list_for_each_entry((sdev), &((shost)->__devices), siblings)
387 extern int scsi_change_queue_depth(struct scsi_device *, int);
388 extern int scsi_track_queue_full(struct scsi_device *, int);
390 extern int scsi_set_medium_removal(struct scsi_device *, char);
392 extern int scsi_mode_sense(struct scsi_device *sdev, int dbd, int modepage,
393 unsigned char *buffer, int len, int timeout,
394 int retries, struct scsi_mode_data *data,
395 struct scsi_sense_hdr *);
396 extern int scsi_mode_select(struct scsi_device *sdev, int pf, int sp,
397 int modepage, unsigned char *buffer, int len,
398 int timeout, int retries,
399 struct scsi_mode_data *data,
400 struct scsi_sense_hdr *);
401 extern int scsi_test_unit_ready(struct scsi_device *sdev, int timeout,
402 int retries, struct scsi_sense_hdr *sshdr);
403 extern int scsi_get_vpd_page(struct scsi_device *, u8 page, unsigned char *buf,
404 int buf_len);
405 extern int scsi_report_opcode(struct scsi_device *sdev, unsigned char *buffer,
406 unsigned int len, unsigned char opcode);
407 extern int scsi_device_set_state(struct scsi_device *sdev,
408 enum scsi_device_state state);
409 extern struct scsi_event *sdev_evt_alloc(enum scsi_device_event evt_type,
410 gfp_t gfpflags);
411 extern void sdev_evt_send(struct scsi_device *sdev, struct scsi_event *evt);
412 extern void sdev_evt_send_simple(struct scsi_device *sdev,
413 enum scsi_device_event evt_type, gfp_t gfpflags);
414 extern int scsi_device_quiesce(struct scsi_device *sdev);
415 extern void scsi_device_resume(struct scsi_device *sdev);
416 extern void scsi_target_quiesce(struct scsi_target *);
417 extern void scsi_target_resume(struct scsi_target *);
418 extern void scsi_scan_target(struct device *parent, unsigned int channel,
419 unsigned int id, u64 lun,
420 enum scsi_scan_mode rescan);
421 extern void scsi_target_reap(struct scsi_target *);
422 extern void scsi_target_block(struct device *);
423 extern void scsi_target_unblock(struct device *, enum scsi_device_state);
424 extern void scsi_remove_target(struct device *);
425 extern const char *scsi_device_state_name(enum scsi_device_state);
426 extern int scsi_is_sdev_device(const struct device *);
427 extern int scsi_is_target_device(const struct device *);
428 extern void scsi_sanitize_inquiry_string(unsigned char *s, int len);
429 extern int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
430 int data_direction, void *buffer, unsigned bufflen,
431 unsigned char *sense, struct scsi_sense_hdr *sshdr,
432 int timeout, int retries, u64 flags,
433 req_flags_t rq_flags, int *resid);
434 static inline int scsi_execute_req(struct scsi_device *sdev,
435 const unsigned char *cmd, int data_direction, void *buffer,
436 unsigned bufflen, struct scsi_sense_hdr *sshdr, int timeout,
437 int retries, int *resid)
439 return scsi_execute(sdev, cmd, data_direction, buffer,
440 bufflen, NULL, sshdr, timeout, retries, 0, 0, resid);
442 extern void sdev_disable_disk_events(struct scsi_device *sdev);
443 extern void sdev_enable_disk_events(struct scsi_device *sdev);
444 extern int scsi_vpd_lun_id(struct scsi_device *, char *, size_t);
445 extern int scsi_vpd_tpg_id(struct scsi_device *, int *);
447 #ifdef CONFIG_PM
448 extern int scsi_autopm_get_device(struct scsi_device *);
449 extern void scsi_autopm_put_device(struct scsi_device *);
450 #else
451 static inline int scsi_autopm_get_device(struct scsi_device *d) { return 0; }
452 static inline void scsi_autopm_put_device(struct scsi_device *d) {}
453 #endif /* CONFIG_PM */
455 static inline int __must_check scsi_device_reprobe(struct scsi_device *sdev)
457 return device_reprobe(&sdev->sdev_gendev);
460 static inline unsigned int sdev_channel(struct scsi_device *sdev)
462 return sdev->channel;
465 static inline unsigned int sdev_id(struct scsi_device *sdev)
467 return sdev->id;
470 #define scmd_id(scmd) sdev_id((scmd)->device)
471 #define scmd_channel(scmd) sdev_channel((scmd)->device)
474 * checks for positions of the SCSI state machine
476 static inline int scsi_device_online(struct scsi_device *sdev)
478 return (sdev->sdev_state != SDEV_OFFLINE &&
479 sdev->sdev_state != SDEV_TRANSPORT_OFFLINE &&
480 sdev->sdev_state != SDEV_DEL);
482 static inline int scsi_device_blocked(struct scsi_device *sdev)
484 return sdev->sdev_state == SDEV_BLOCK ||
485 sdev->sdev_state == SDEV_CREATED_BLOCK;
487 static inline int scsi_device_created(struct scsi_device *sdev)
489 return sdev->sdev_state == SDEV_CREATED ||
490 sdev->sdev_state == SDEV_CREATED_BLOCK;
493 int scsi_internal_device_block_nowait(struct scsi_device *sdev);
494 int scsi_internal_device_unblock_nowait(struct scsi_device *sdev,
495 enum scsi_device_state new_state);
497 /* accessor functions for the SCSI parameters */
498 static inline int scsi_device_sync(struct scsi_device *sdev)
500 return sdev->sdtr;
502 static inline int scsi_device_wide(struct scsi_device *sdev)
504 return sdev->wdtr;
506 static inline int scsi_device_dt(struct scsi_device *sdev)
508 return sdev->ppr;
510 static inline int scsi_device_dt_only(struct scsi_device *sdev)
512 if (sdev->inquiry_len < 57)
513 return 0;
514 return (sdev->inquiry[56] & 0x0c) == 0x04;
516 static inline int scsi_device_ius(struct scsi_device *sdev)
518 if (sdev->inquiry_len < 57)
519 return 0;
520 return sdev->inquiry[56] & 0x01;
522 static inline int scsi_device_qas(struct scsi_device *sdev)
524 if (sdev->inquiry_len < 57)
525 return 0;
526 return sdev->inquiry[56] & 0x02;
528 static inline int scsi_device_enclosure(struct scsi_device *sdev)
530 return sdev->inquiry ? (sdev->inquiry[6] & (1<<6)) : 1;
533 static inline int scsi_device_protection(struct scsi_device *sdev)
535 if (sdev->no_dif)
536 return 0;
538 return sdev->scsi_level > SCSI_2 && sdev->inquiry[5] & (1<<0);
541 static inline int scsi_device_tpgs(struct scsi_device *sdev)
543 return sdev->inquiry ? (sdev->inquiry[5] >> 4) & 0x3 : 0;
547 * scsi_device_supports_vpd - test if a device supports VPD pages
548 * @sdev: the &struct scsi_device to test
550 * If the 'try_vpd_pages' flag is set it takes precedence.
551 * Otherwise we will assume VPD pages are supported if the
552 * SCSI level is at least SPC-3 and 'skip_vpd_pages' is not set.
554 static inline int scsi_device_supports_vpd(struct scsi_device *sdev)
556 /* Attempt VPD inquiry if the device blacklist explicitly calls
557 * for it.
559 if (sdev->try_vpd_pages)
560 return 1;
562 * Although VPD inquiries can go to SCSI-2 type devices,
563 * some USB ones crash on receiving them, and the pages
564 * we currently ask for are mandatory for SPC-2 and beyond
566 if (sdev->scsi_level >= SCSI_SPC_2 && !sdev->skip_vpd_pages)
567 return 1;
568 return 0;
571 #define MODULE_ALIAS_SCSI_DEVICE(type) \
572 MODULE_ALIAS("scsi:t-" __stringify(type) "*")
573 #define SCSI_DEVICE_MODALIAS_FMT "scsi:t-0x%02x"
575 #endif /* _SCSI_SCSI_DEVICE_H */