4 * SCSI sysfs interface routines.
6 * Created to pull SCSI mid layer sysfs routines into one file.
9 #include <linux/config.h>
10 #include <linux/module.h>
11 #include <linux/init.h>
12 #include <linux/blkdev.h>
13 #include <linux/device.h>
15 #include <scsi/scsi.h>
16 #include <scsi/scsi_device.h>
17 #include <scsi/scsi_host.h>
18 #include <scsi/scsi_tcq.h>
19 #include <scsi/scsi_transport.h>
21 #include "scsi_priv.h"
22 #include "scsi_logging.h"
25 enum scsi_device_state value
;
28 { SDEV_CREATED
, "created" },
29 { SDEV_RUNNING
, "running" },
30 { SDEV_CANCEL
, "cancel" },
31 { SDEV_DEL
, "deleted" },
32 { SDEV_QUIESCE
, "quiesce" },
33 { SDEV_OFFLINE
, "offline" },
34 { SDEV_BLOCK
, "blocked" },
37 const char *scsi_device_state_name(enum scsi_device_state state
)
42 for (i
= 0; i
< sizeof(sdev_states
)/sizeof(sdev_states
[0]); i
++) {
43 if (sdev_states
[i
].value
== state
) {
44 name
= sdev_states
[i
].name
;
52 enum scsi_host_state value
;
55 { SHOST_CREATED
, "created" },
56 { SHOST_RUNNING
, "running" },
57 { SHOST_CANCEL
, "cancel" },
58 { SHOST_DEL
, "deleted" },
59 { SHOST_RECOVERY
, "recovery" },
60 { SHOST_CANCEL_RECOVERY
, "cancel/recovery" },
61 { SHOST_DEL_RECOVERY
, "deleted/recovery", },
63 const char *scsi_host_state_name(enum scsi_host_state state
)
68 for (i
= 0; i
< sizeof(shost_states
)/sizeof(shost_states
[0]); i
++) {
69 if (shost_states
[i
].value
== state
) {
70 name
= shost_states
[i
].name
;
77 static int check_set(unsigned int *val
, char *src
)
81 if (strncmp(src
, "-", 20) == 0) {
82 *val
= SCAN_WILD_CARD
;
85 * Doesn't check for int overflow
87 *val
= simple_strtoul(src
, &last
, 0);
94 static int scsi_scan(struct Scsi_Host
*shost
, const char *str
)
96 char s1
[15], s2
[15], s3
[15], junk
;
97 unsigned int channel
, id
, lun
;
100 res
= sscanf(str
, "%10s %10s %10s %c", s1
, s2
, s3
, &junk
);
103 if (check_set(&channel
, s1
))
105 if (check_set(&id
, s2
))
107 if (check_set(&lun
, s3
))
109 res
= scsi_scan_host_selected(shost
, channel
, id
, lun
, 1);
114 * shost_show_function: macro to create an attr function that can be used to
115 * show a non-bit field.
117 #define shost_show_function(name, field, format_string) \
119 show_##name (struct class_device *class_dev, char *buf) \
121 struct Scsi_Host *shost = class_to_shost(class_dev); \
122 return snprintf (buf, 20, format_string, shost->field); \
126 * shost_rd_attr: macro to create a function and attribute variable for a
129 #define shost_rd_attr2(name, field, format_string) \
130 shost_show_function(name, field, format_string) \
131 static CLASS_DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
133 #define shost_rd_attr(field, format_string) \
134 shost_rd_attr2(field, field, format_string)
137 * Create the actual show/store functions and data structures.
140 static ssize_t
store_scan(struct class_device
*class_dev
, const char *buf
,
143 struct Scsi_Host
*shost
= class_to_shost(class_dev
);
146 res
= scsi_scan(shost
, buf
);
151 static CLASS_DEVICE_ATTR(scan
, S_IWUSR
, NULL
, store_scan
);
154 store_shost_state(struct class_device
*class_dev
, const char *buf
, size_t count
)
157 struct Scsi_Host
*shost
= class_to_shost(class_dev
);
158 enum scsi_host_state state
= 0;
160 for (i
= 0; i
< sizeof(shost_states
)/sizeof(shost_states
[0]); i
++) {
161 const int len
= strlen(shost_states
[i
].name
);
162 if (strncmp(shost_states
[i
].name
, buf
, len
) == 0 &&
164 state
= shost_states
[i
].value
;
171 if (scsi_host_set_state(shost
, state
))
177 show_shost_state(struct class_device
*class_dev
, char *buf
)
179 struct Scsi_Host
*shost
= class_to_shost(class_dev
);
180 const char *name
= scsi_host_state_name(shost
->shost_state
);
185 return snprintf(buf
, 20, "%s\n", name
);
188 static CLASS_DEVICE_ATTR(state
, S_IRUGO
| S_IWUSR
, show_shost_state
, store_shost_state
);
190 shost_rd_attr(unique_id
, "%u\n");
191 shost_rd_attr(host_busy
, "%hu\n");
192 shost_rd_attr(cmd_per_lun
, "%hd\n");
193 shost_rd_attr(sg_tablesize
, "%hu\n");
194 shost_rd_attr(unchecked_isa_dma
, "%d\n");
195 shost_rd_attr2(proc_name
, hostt
->proc_name
, "%s\n");
197 static struct class_device_attribute
*scsi_sysfs_shost_attrs
[] = {
198 &class_device_attr_unique_id
,
199 &class_device_attr_host_busy
,
200 &class_device_attr_cmd_per_lun
,
201 &class_device_attr_sg_tablesize
,
202 &class_device_attr_unchecked_isa_dma
,
203 &class_device_attr_proc_name
,
204 &class_device_attr_scan
,
205 &class_device_attr_state
,
209 static void scsi_device_cls_release(struct class_device
*class_dev
)
211 struct scsi_device
*sdev
;
213 sdev
= class_to_sdev(class_dev
);
214 put_device(&sdev
->sdev_gendev
);
217 static void scsi_device_dev_release(struct device
*dev
)
219 struct scsi_device
*sdev
;
220 struct device
*parent
;
221 struct scsi_target
*starget
;
224 parent
= dev
->parent
;
225 sdev
= to_scsi_device(dev
);
226 starget
= to_scsi_target(parent
);
228 spin_lock_irqsave(sdev
->host
->host_lock
, flags
);
230 list_del(&sdev
->siblings
);
231 list_del(&sdev
->same_target_siblings
);
232 list_del(&sdev
->starved_entry
);
233 spin_unlock_irqrestore(sdev
->host
->host_lock
, flags
);
235 if (sdev
->request_queue
) {
236 sdev
->request_queue
->queuedata
= NULL
;
237 scsi_free_queue(sdev
->request_queue
);
238 /* temporary expedient, try to catch use of queue lock
239 * after free of sdev */
240 sdev
->request_queue
= NULL
;
243 scsi_target_reap(scsi_target(sdev
));
245 kfree(sdev
->inquiry
);
252 static struct class sdev_class
= {
253 .name
= "scsi_device",
254 .release
= scsi_device_cls_release
,
257 /* all probing is done in the individual ->probe routines */
258 static int scsi_bus_match(struct device
*dev
, struct device_driver
*gendrv
)
260 struct scsi_device
*sdp
= to_scsi_device(dev
);
261 if (sdp
->no_uld_attach
)
263 return (sdp
->inq_periph_qual
== SCSI_INQ_PQ_CON
)? 1: 0;
266 static int scsi_bus_suspend(struct device
* dev
, pm_message_t state
)
268 struct scsi_device
*sdev
= to_scsi_device(dev
);
269 struct scsi_host_template
*sht
= sdev
->host
->hostt
;
272 err
= scsi_device_quiesce(sdev
);
277 err
= sht
->suspend(sdev
);
282 static int scsi_bus_resume(struct device
* dev
)
284 struct scsi_device
*sdev
= to_scsi_device(dev
);
285 struct scsi_host_template
*sht
= sdev
->host
->hostt
;
289 err
= sht
->resume(sdev
);
291 scsi_device_resume(sdev
);
295 struct bus_type scsi_bus_type
= {
297 .match
= scsi_bus_match
,
298 .suspend
= scsi_bus_suspend
,
299 .resume
= scsi_bus_resume
,
302 int scsi_sysfs_register(void)
306 error
= bus_register(&scsi_bus_type
);
308 error
= class_register(&sdev_class
);
310 bus_unregister(&scsi_bus_type
);
316 void scsi_sysfs_unregister(void)
318 class_unregister(&sdev_class
);
319 bus_unregister(&scsi_bus_type
);
323 * sdev_show_function: macro to create an attr function that can be used to
324 * show a non-bit field.
326 #define sdev_show_function(field, format_string) \
328 sdev_show_##field (struct device *dev, struct device_attribute *attr, char *buf) \
330 struct scsi_device *sdev; \
331 sdev = to_scsi_device(dev); \
332 return snprintf (buf, 20, format_string, sdev->field); \
336 * sdev_rd_attr: macro to create a function and attribute variable for a
339 #define sdev_rd_attr(field, format_string) \
340 sdev_show_function(field, format_string) \
341 static DEVICE_ATTR(field, S_IRUGO, sdev_show_##field, NULL);
345 * sdev_rd_attr: create a function and attribute variable for a
348 #define sdev_rw_attr(field, format_string) \
349 sdev_show_function(field, format_string) \
352 sdev_store_##field (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
354 struct scsi_device *sdev; \
355 sdev = to_scsi_device(dev); \
356 snscanf (buf, 20, format_string, &sdev->field); \
359 static DEVICE_ATTR(field, S_IRUGO | S_IWUSR, sdev_show_##field, sdev_store_##field);
361 /* Currently we don't export bit fields, but we might in future,
362 * so leave this code in */
365 * sdev_rd_attr: create a function and attribute variable for a
366 * read/write bit field.
368 #define sdev_rw_attr_bit(field) \
369 sdev_show_function(field, "%d\n") \
372 sdev_store_##field (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
375 struct scsi_device *sdev; \
376 ret = scsi_sdev_check_buf_bit(buf); \
378 sdev = to_scsi_device(dev); \
384 static DEVICE_ATTR(field, S_IRUGO | S_IWUSR, sdev_show_##field, sdev_store_##field);
387 * scsi_sdev_check_buf_bit: return 0 if buf is "0", return 1 if buf is "1",
388 * else return -EINVAL.
390 static int scsi_sdev_check_buf_bit(const char *buf
)
392 if ((buf
[1] == '\0') || ((buf
[1] == '\n') && (buf
[2] == '\0'))) {
395 else if (buf
[0] == '0')
404 * Create the actual show/store functions and data structures.
406 sdev_rd_attr (device_blocked
, "%d\n");
407 sdev_rd_attr (queue_depth
, "%d\n");
408 sdev_rd_attr (type
, "%d\n");
409 sdev_rd_attr (scsi_level
, "%d\n");
410 sdev_rd_attr (vendor
, "%.8s\n");
411 sdev_rd_attr (model
, "%.16s\n");
412 sdev_rd_attr (rev
, "%.4s\n");
415 sdev_show_timeout (struct device
*dev
, struct device_attribute
*attr
, char *buf
)
417 struct scsi_device
*sdev
;
418 sdev
= to_scsi_device(dev
);
419 return snprintf (buf
, 20, "%d\n", sdev
->timeout
/ HZ
);
423 sdev_store_timeout (struct device
*dev
, struct device_attribute
*attr
, const char *buf
, size_t count
)
425 struct scsi_device
*sdev
;
427 sdev
= to_scsi_device(dev
);
428 sscanf (buf
, "%d\n", &timeout
);
429 sdev
->timeout
= timeout
* HZ
;
432 static DEVICE_ATTR(timeout
, S_IRUGO
| S_IWUSR
, sdev_show_timeout
, sdev_store_timeout
);
435 store_rescan_field (struct device
*dev
, struct device_attribute
*attr
, const char *buf
, size_t count
)
437 scsi_rescan_device(dev
);
440 static DEVICE_ATTR(rescan
, S_IWUSR
, NULL
, store_rescan_field
);
442 static ssize_t
sdev_store_delete(struct device
*dev
, struct device_attribute
*attr
, const char *buf
,
445 scsi_remove_device(to_scsi_device(dev
));
448 static DEVICE_ATTR(delete, S_IWUSR
, NULL
, sdev_store_delete
);
451 store_state_field(struct device
*dev
, struct device_attribute
*attr
, const char *buf
, size_t count
)
454 struct scsi_device
*sdev
= to_scsi_device(dev
);
455 enum scsi_device_state state
= 0;
457 for (i
= 0; i
< sizeof(sdev_states
)/sizeof(sdev_states
[0]); i
++) {
458 const int len
= strlen(sdev_states
[i
].name
);
459 if (strncmp(sdev_states
[i
].name
, buf
, len
) == 0 &&
461 state
= sdev_states
[i
].value
;
468 if (scsi_device_set_state(sdev
, state
))
474 show_state_field(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
476 struct scsi_device
*sdev
= to_scsi_device(dev
);
477 const char *name
= scsi_device_state_name(sdev
->sdev_state
);
482 return snprintf(buf
, 20, "%s\n", name
);
485 static DEVICE_ATTR(state
, S_IRUGO
| S_IWUSR
, show_state_field
, store_state_field
);
488 show_queue_type_field(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
490 struct scsi_device
*sdev
= to_scsi_device(dev
);
491 const char *name
= "none";
493 if (sdev
->ordered_tags
)
495 else if (sdev
->simple_tags
)
498 return snprintf(buf
, 20, "%s\n", name
);
501 static DEVICE_ATTR(queue_type
, S_IRUGO
, show_queue_type_field
, NULL
);
504 show_iostat_counterbits(struct device
*dev
, struct device_attribute
*attr
, char *buf
)
506 return snprintf(buf
, 20, "%d\n", (int)sizeof(atomic_t
) * 8);
509 static DEVICE_ATTR(iocounterbits
, S_IRUGO
, show_iostat_counterbits
, NULL
);
511 #define show_sdev_iostat(field) \
513 show_iostat_##field(struct device *dev, struct device_attribute *attr, char *buf) \
515 struct scsi_device *sdev = to_scsi_device(dev); \
516 unsigned long long count = atomic_read(&sdev->field); \
517 return snprintf(buf, 20, "0x%llx\n", count); \
519 static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL)
521 show_sdev_iostat(iorequest_cnt
);
522 show_sdev_iostat(iodone_cnt
);
523 show_sdev_iostat(ioerr_cnt
);
526 /* Default template for device attributes. May NOT be modified */
527 static struct device_attribute
*scsi_sysfs_sdev_attrs
[] = {
528 &dev_attr_device_blocked
,
529 &dev_attr_queue_depth
,
530 &dev_attr_queue_type
,
532 &dev_attr_scsi_level
,
540 &dev_attr_iocounterbits
,
541 &dev_attr_iorequest_cnt
,
542 &dev_attr_iodone_cnt
,
547 static ssize_t
sdev_store_queue_depth_rw(struct device
*dev
, struct device_attribute
*attr
, const char *buf
,
551 struct scsi_device
*sdev
= to_scsi_device(dev
);
552 struct scsi_host_template
*sht
= sdev
->host
->hostt
;
554 if (!sht
->change_queue_depth
)
557 depth
= simple_strtoul(buf
, NULL
, 0);
562 retval
= sht
->change_queue_depth(sdev
, depth
);
569 static struct device_attribute sdev_attr_queue_depth_rw
=
570 __ATTR(queue_depth
, S_IRUGO
| S_IWUSR
, sdev_show_queue_depth
,
571 sdev_store_queue_depth_rw
);
573 static ssize_t
sdev_store_queue_type_rw(struct device
*dev
, struct device_attribute
*attr
, const char *buf
,
576 struct scsi_device
*sdev
= to_scsi_device(dev
);
577 struct scsi_host_template
*sht
= sdev
->host
->hostt
;
578 int tag_type
= 0, retval
;
579 int prev_tag_type
= scsi_get_tag_type(sdev
);
581 if (!sdev
->tagged_supported
|| !sht
->change_queue_type
)
584 if (strncmp(buf
, "ordered", 7) == 0)
585 tag_type
= MSG_ORDERED_TAG
;
586 else if (strncmp(buf
, "simple", 6) == 0)
587 tag_type
= MSG_SIMPLE_TAG
;
588 else if (strncmp(buf
, "none", 4) != 0)
591 if (tag_type
== prev_tag_type
)
594 retval
= sht
->change_queue_type(sdev
, tag_type
);
601 static struct device_attribute sdev_attr_queue_type_rw
=
602 __ATTR(queue_type
, S_IRUGO
| S_IWUSR
, show_queue_type_field
,
603 sdev_store_queue_type_rw
);
605 static struct device_attribute
*attr_changed_internally(
606 struct Scsi_Host
*shost
,
607 struct device_attribute
* attr
)
609 if (!strcmp("queue_depth", attr
->attr
.name
)
610 && shost
->hostt
->change_queue_depth
)
611 return &sdev_attr_queue_depth_rw
;
612 else if (!strcmp("queue_type", attr
->attr
.name
)
613 && shost
->hostt
->change_queue_type
)
614 return &sdev_attr_queue_type_rw
;
619 static struct device_attribute
*attr_overridden(
620 struct device_attribute
**attrs
,
621 struct device_attribute
*attr
)
627 for (i
= 0; attrs
[i
]; i
++)
628 if (!strcmp(attrs
[i
]->attr
.name
, attr
->attr
.name
))
633 static int attr_add(struct device
*dev
, struct device_attribute
*attr
)
635 struct device_attribute
*base_attr
;
638 * Spare the caller from having to copy things it's not interested in.
640 base_attr
= attr_overridden(scsi_sysfs_sdev_attrs
, attr
);
642 /* extend permissions */
643 attr
->attr
.mode
|= base_attr
->attr
.mode
;
645 /* override null show/store with default */
647 attr
->show
= base_attr
->show
;
649 attr
->store
= base_attr
->store
;
652 return device_create_file(dev
, attr
);
656 * scsi_sysfs_add_sdev - add scsi device to sysfs
657 * @sdev: scsi_device to add
660 * 0 on Success / non-zero on Failure
662 int scsi_sysfs_add_sdev(struct scsi_device
*sdev
)
666 if ((error
= scsi_device_set_state(sdev
, SDEV_RUNNING
)) != 0)
669 error
= device_add(&sdev
->sdev_gendev
);
671 put_device(sdev
->sdev_gendev
.parent
);
672 printk(KERN_INFO
"error 1\n");
675 error
= class_device_add(&sdev
->sdev_classdev
);
677 printk(KERN_INFO
"error 2\n");
681 /* take a reference for the sdev_classdev; this is
682 * released by the sdev_class .release */
683 get_device(&sdev
->sdev_gendev
);
684 if (sdev
->host
->hostt
->sdev_attrs
) {
685 for (i
= 0; sdev
->host
->hostt
->sdev_attrs
[i
]; i
++) {
686 error
= attr_add(&sdev
->sdev_gendev
,
687 sdev
->host
->hostt
->sdev_attrs
[i
]);
689 __scsi_remove_device(sdev
);
695 for (i
= 0; scsi_sysfs_sdev_attrs
[i
]; i
++) {
696 if (!attr_overridden(sdev
->host
->hostt
->sdev_attrs
,
697 scsi_sysfs_sdev_attrs
[i
])) {
698 struct device_attribute
* attr
=
699 attr_changed_internally(sdev
->host
,
700 scsi_sysfs_sdev_attrs
[i
]);
701 error
= device_create_file(&sdev
->sdev_gendev
, attr
);
703 __scsi_remove_device(sdev
);
709 transport_add_device(&sdev
->sdev_gendev
);
714 scsi_device_set_state(sdev
, SDEV_CANCEL
);
716 device_del(&sdev
->sdev_gendev
);
717 transport_destroy_device(&sdev
->sdev_gendev
);
718 put_device(&sdev
->sdev_gendev
);
723 void __scsi_remove_device(struct scsi_device
*sdev
)
725 struct device
*dev
= &sdev
->sdev_gendev
;
727 if (scsi_device_set_state(sdev
, SDEV_CANCEL
) != 0)
730 class_device_unregister(&sdev
->sdev_classdev
);
731 transport_remove_device(dev
);
733 scsi_device_set_state(sdev
, SDEV_DEL
);
734 if (sdev
->host
->hostt
->slave_destroy
)
735 sdev
->host
->hostt
->slave_destroy(sdev
);
736 transport_destroy_device(dev
);
741 * scsi_remove_device - unregister a device from the scsi bus
742 * @sdev: scsi_device to unregister
744 void scsi_remove_device(struct scsi_device
*sdev
)
746 struct Scsi_Host
*shost
= sdev
->host
;
748 mutex_lock(&shost
->scan_mutex
);
749 __scsi_remove_device(sdev
);
750 mutex_unlock(&shost
->scan_mutex
);
752 EXPORT_SYMBOL(scsi_remove_device
);
754 void __scsi_remove_target(struct scsi_target
*starget
)
756 struct Scsi_Host
*shost
= dev_to_shost(starget
->dev
.parent
);
758 struct scsi_device
*sdev
;
760 spin_lock_irqsave(shost
->host_lock
, flags
);
763 list_for_each_entry(sdev
, &shost
->__devices
, siblings
) {
764 if (sdev
->channel
!= starget
->channel
||
765 sdev
->id
!= starget
->id
||
766 sdev
->sdev_state
== SDEV_DEL
)
768 spin_unlock_irqrestore(shost
->host_lock
, flags
);
769 scsi_remove_device(sdev
);
770 spin_lock_irqsave(shost
->host_lock
, flags
);
773 spin_unlock_irqrestore(shost
->host_lock
, flags
);
774 scsi_target_reap(starget
);
777 static int __remove_child (struct device
* dev
, void * data
)
779 if (scsi_is_target_device(dev
))
780 __scsi_remove_target(to_scsi_target(dev
));
785 * scsi_remove_target - try to remove a target and all its devices
786 * @dev: generic starget or parent of generic stargets to be removed
788 * Note: This is slightly racy. It is possible that if the user
789 * requests the addition of another device then the target won't be
792 void scsi_remove_target(struct device
*dev
)
796 if (scsi_is_target_device(dev
)) {
797 __scsi_remove_target(to_scsi_target(dev
));
801 rdev
= get_device(dev
);
802 device_for_each_child(dev
, NULL
, __remove_child
);
805 EXPORT_SYMBOL(scsi_remove_target
);
807 int scsi_register_driver(struct device_driver
*drv
)
809 drv
->bus
= &scsi_bus_type
;
811 return driver_register(drv
);
813 EXPORT_SYMBOL(scsi_register_driver
);
815 int scsi_register_interface(struct class_interface
*intf
)
817 intf
->class = &sdev_class
;
819 return class_interface_register(intf
);
821 EXPORT_SYMBOL(scsi_register_interface
);
824 static struct class_device_attribute
*class_attr_overridden(
825 struct class_device_attribute
**attrs
,
826 struct class_device_attribute
*attr
)
832 for (i
= 0; attrs
[i
]; i
++)
833 if (!strcmp(attrs
[i
]->attr
.name
, attr
->attr
.name
))
838 static int class_attr_add(struct class_device
*classdev
,
839 struct class_device_attribute
*attr
)
841 struct class_device_attribute
*base_attr
;
844 * Spare the caller from having to copy things it's not interested in.
846 base_attr
= class_attr_overridden(scsi_sysfs_shost_attrs
, attr
);
848 /* extend permissions */
849 attr
->attr
.mode
|= base_attr
->attr
.mode
;
851 /* override null show/store with default */
853 attr
->show
= base_attr
->show
;
855 attr
->store
= base_attr
->store
;
858 return class_device_create_file(classdev
, attr
);
862 * scsi_sysfs_add_host - add scsi host to subsystem
863 * @shost: scsi host struct to add to subsystem
864 * @dev: parent struct device pointer
866 int scsi_sysfs_add_host(struct Scsi_Host
*shost
)
870 if (shost
->hostt
->shost_attrs
) {
871 for (i
= 0; shost
->hostt
->shost_attrs
[i
]; i
++) {
872 error
= class_attr_add(&shost
->shost_classdev
,
873 shost
->hostt
->shost_attrs
[i
]);
879 for (i
= 0; scsi_sysfs_shost_attrs
[i
]; i
++) {
880 if (!class_attr_overridden(shost
->hostt
->shost_attrs
,
881 scsi_sysfs_shost_attrs
[i
])) {
882 error
= class_device_create_file(&shost
->shost_classdev
,
883 scsi_sysfs_shost_attrs
[i
]);
889 transport_register_device(&shost
->shost_gendev
);
893 void scsi_sysfs_device_initialize(struct scsi_device
*sdev
)
896 struct Scsi_Host
*shost
= sdev
->host
;
897 struct scsi_target
*starget
= sdev
->sdev_target
;
899 device_initialize(&sdev
->sdev_gendev
);
900 sdev
->sdev_gendev
.bus
= &scsi_bus_type
;
901 sdev
->sdev_gendev
.release
= scsi_device_dev_release
;
902 sprintf(sdev
->sdev_gendev
.bus_id
,"%d:%d:%d:%d",
903 sdev
->host
->host_no
, sdev
->channel
, sdev
->id
,
906 class_device_initialize(&sdev
->sdev_classdev
);
907 sdev
->sdev_classdev
.dev
= &sdev
->sdev_gendev
;
908 sdev
->sdev_classdev
.class = &sdev_class
;
909 snprintf(sdev
->sdev_classdev
.class_id
, BUS_ID_SIZE
,
910 "%d:%d:%d:%d", sdev
->host
->host_no
,
911 sdev
->channel
, sdev
->id
, sdev
->lun
);
912 sdev
->scsi_level
= SCSI_2
;
913 transport_setup_device(&sdev
->sdev_gendev
);
914 spin_lock_irqsave(shost
->host_lock
, flags
);
915 list_add_tail(&sdev
->same_target_siblings
, &starget
->devices
);
916 list_add_tail(&sdev
->siblings
, &shost
->__devices
);
917 spin_unlock_irqrestore(shost
->host_lock
, flags
);
920 int scsi_is_sdev_device(const struct device
*dev
)
922 return dev
->release
== scsi_device_dev_release
;
924 EXPORT_SYMBOL(scsi_is_sdev_device
);
926 /* A blank transport template that is used in drivers that don't
927 * yet implement Transport Attributes */
928 struct scsi_transport_template blank_transport_template
= { { { {NULL
, }, }, }, };