Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * scsi_sysfs.c | |
3 | * | |
4 | * SCSI sysfs interface routines. | |
5 | * | |
6 | * Created to pull SCSI mid layer sysfs routines into one file. | |
7 | */ | |
8 | ||
1da177e4 | 9 | #include <linux/module.h> |
5a0e3ad6 | 10 | #include <linux/slab.h> |
1da177e4 LT |
11 | #include <linux/init.h> |
12 | #include <linux/blkdev.h> | |
13 | #include <linux/device.h> | |
bc4f2401 | 14 | #include <linux/pm_runtime.h> |
1da177e4 LT |
15 | |
16 | #include <scsi/scsi.h> | |
17 | #include <scsi/scsi_device.h> | |
18 | #include <scsi/scsi_host.h> | |
19 | #include <scsi/scsi_tcq.h> | |
20 | #include <scsi/scsi_transport.h> | |
44818efb | 21 | #include <scsi/scsi_driver.h> |
1da177e4 LT |
22 | |
23 | #include "scsi_priv.h" | |
24 | #include "scsi_logging.h" | |
25 | ||
b0ed4336 HR |
26 | static struct device_type scsi_dev_type; |
27 | ||
0ad78200 | 28 | static const struct { |
1da177e4 LT |
29 | enum scsi_device_state value; |
30 | char *name; | |
31 | } sdev_states[] = { | |
32 | { SDEV_CREATED, "created" }, | |
33 | { SDEV_RUNNING, "running" }, | |
34 | { SDEV_CANCEL, "cancel" }, | |
35 | { SDEV_DEL, "deleted" }, | |
36 | { SDEV_QUIESCE, "quiesce" }, | |
37 | { SDEV_OFFLINE, "offline" }, | |
38 | { SDEV_BLOCK, "blocked" }, | |
6f4267e3 | 39 | { SDEV_CREATED_BLOCK, "created-blocked" }, |
1da177e4 LT |
40 | }; |
41 | ||
42 | const char *scsi_device_state_name(enum scsi_device_state state) | |
43 | { | |
44 | int i; | |
45 | char *name = NULL; | |
46 | ||
6391a113 | 47 | for (i = 0; i < ARRAY_SIZE(sdev_states); i++) { |
1da177e4 LT |
48 | if (sdev_states[i].value == state) { |
49 | name = sdev_states[i].name; | |
50 | break; | |
51 | } | |
52 | } | |
53 | return name; | |
54 | } | |
55 | ||
0ad78200 | 56 | static const struct { |
d3301874 MA |
57 | enum scsi_host_state value; |
58 | char *name; | |
59 | } shost_states[] = { | |
60 | { SHOST_CREATED, "created" }, | |
61 | { SHOST_RUNNING, "running" }, | |
62 | { SHOST_CANCEL, "cancel" }, | |
63 | { SHOST_DEL, "deleted" }, | |
64 | { SHOST_RECOVERY, "recovery" }, | |
939647ee JB |
65 | { SHOST_CANCEL_RECOVERY, "cancel/recovery" }, |
66 | { SHOST_DEL_RECOVERY, "deleted/recovery", }, | |
d3301874 MA |
67 | }; |
68 | const char *scsi_host_state_name(enum scsi_host_state state) | |
69 | { | |
70 | int i; | |
71 | char *name = NULL; | |
72 | ||
6391a113 | 73 | for (i = 0; i < ARRAY_SIZE(shost_states); i++) { |
d3301874 MA |
74 | if (shost_states[i].value == state) { |
75 | name = shost_states[i].name; | |
76 | break; | |
77 | } | |
78 | } | |
79 | return name; | |
80 | } | |
81 | ||
1da177e4 LT |
82 | static int check_set(unsigned int *val, char *src) |
83 | { | |
84 | char *last; | |
85 | ||
86 | if (strncmp(src, "-", 20) == 0) { | |
87 | *val = SCAN_WILD_CARD; | |
88 | } else { | |
89 | /* | |
90 | * Doesn't check for int overflow | |
91 | */ | |
92 | *val = simple_strtoul(src, &last, 0); | |
93 | if (*last != '\0') | |
94 | return 1; | |
95 | } | |
96 | return 0; | |
97 | } | |
98 | ||
99 | static int scsi_scan(struct Scsi_Host *shost, const char *str) | |
100 | { | |
101 | char s1[15], s2[15], s3[15], junk; | |
102 | unsigned int channel, id, lun; | |
103 | int res; | |
104 | ||
105 | res = sscanf(str, "%10s %10s %10s %c", s1, s2, s3, &junk); | |
106 | if (res != 3) | |
107 | return -EINVAL; | |
108 | if (check_set(&channel, s1)) | |
109 | return -EINVAL; | |
110 | if (check_set(&id, s2)) | |
111 | return -EINVAL; | |
112 | if (check_set(&lun, s3)) | |
113 | return -EINVAL; | |
e02f3f59 CH |
114 | if (shost->transportt->user_scan) |
115 | res = shost->transportt->user_scan(shost, channel, id, lun); | |
116 | else | |
117 | res = scsi_scan_host_selected(shost, channel, id, lun, 1); | |
1da177e4 LT |
118 | return res; |
119 | } | |
120 | ||
121 | /* | |
122 | * shost_show_function: macro to create an attr function that can be used to | |
123 | * show a non-bit field. | |
124 | */ | |
125 | #define shost_show_function(name, field, format_string) \ | |
126 | static ssize_t \ | |
ee959b00 TJ |
127 | show_##name (struct device *dev, struct device_attribute *attr, \ |
128 | char *buf) \ | |
1da177e4 | 129 | { \ |
ee959b00 | 130 | struct Scsi_Host *shost = class_to_shost(dev); \ |
1da177e4 LT |
131 | return snprintf (buf, 20, format_string, shost->field); \ |
132 | } | |
133 | ||
134 | /* | |
135 | * shost_rd_attr: macro to create a function and attribute variable for a | |
136 | * read only field. | |
137 | */ | |
138 | #define shost_rd_attr2(name, field, format_string) \ | |
139 | shost_show_function(name, field, format_string) \ | |
ee959b00 | 140 | static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL); |
1da177e4 LT |
141 | |
142 | #define shost_rd_attr(field, format_string) \ | |
143 | shost_rd_attr2(field, field, format_string) | |
144 | ||
145 | /* | |
146 | * Create the actual show/store functions and data structures. | |
147 | */ | |
148 | ||
ee959b00 TJ |
149 | static ssize_t |
150 | store_scan(struct device *dev, struct device_attribute *attr, | |
151 | const char *buf, size_t count) | |
1da177e4 | 152 | { |
ee959b00 | 153 | struct Scsi_Host *shost = class_to_shost(dev); |
1da177e4 LT |
154 | int res; |
155 | ||
156 | res = scsi_scan(shost, buf); | |
157 | if (res == 0) | |
158 | res = count; | |
159 | return res; | |
160 | }; | |
ee959b00 | 161 | static DEVICE_ATTR(scan, S_IWUSR, NULL, store_scan); |
1da177e4 | 162 | |
d3301874 | 163 | static ssize_t |
ee959b00 TJ |
164 | store_shost_state(struct device *dev, struct device_attribute *attr, |
165 | const char *buf, size_t count) | |
d3301874 MA |
166 | { |
167 | int i; | |
ee959b00 | 168 | struct Scsi_Host *shost = class_to_shost(dev); |
d3301874 MA |
169 | enum scsi_host_state state = 0; |
170 | ||
6391a113 | 171 | for (i = 0; i < ARRAY_SIZE(shost_states); i++) { |
d3301874 MA |
172 | const int len = strlen(shost_states[i].name); |
173 | if (strncmp(shost_states[i].name, buf, len) == 0 && | |
174 | buf[len] == '\n') { | |
175 | state = shost_states[i].value; | |
176 | break; | |
177 | } | |
178 | } | |
179 | if (!state) | |
180 | return -EINVAL; | |
181 | ||
182 | if (scsi_host_set_state(shost, state)) | |
183 | return -EINVAL; | |
184 | return count; | |
185 | } | |
186 | ||
187 | static ssize_t | |
ee959b00 | 188 | show_shost_state(struct device *dev, struct device_attribute *attr, char *buf) |
d3301874 | 189 | { |
ee959b00 | 190 | struct Scsi_Host *shost = class_to_shost(dev); |
d3301874 MA |
191 | const char *name = scsi_host_state_name(shost->shost_state); |
192 | ||
193 | if (!name) | |
194 | return -EINVAL; | |
195 | ||
196 | return snprintf(buf, 20, "%s\n", name); | |
197 | } | |
198 | ||
ee959b00 TJ |
199 | /* DEVICE_ATTR(state) clashes with dev_attr_state for sdev */ |
200 | struct device_attribute dev_attr_hstate = | |
201 | __ATTR(state, S_IRUGO | S_IWUSR, show_shost_state, store_shost_state); | |
d3301874 | 202 | |
5dc2b89e FT |
203 | static ssize_t |
204 | show_shost_mode(unsigned int mode, char *buf) | |
205 | { | |
206 | ssize_t len = 0; | |
207 | ||
208 | if (mode & MODE_INITIATOR) | |
209 | len = sprintf(buf, "%s", "Initiator"); | |
210 | ||
211 | if (mode & MODE_TARGET) | |
212 | len += sprintf(buf + len, "%s%s", len ? ", " : "", "Target"); | |
213 | ||
214 | len += sprintf(buf + len, "\n"); | |
215 | ||
216 | return len; | |
217 | } | |
218 | ||
ee959b00 TJ |
219 | static ssize_t |
220 | show_shost_supported_mode(struct device *dev, struct device_attribute *attr, | |
221 | char *buf) | |
5dc2b89e | 222 | { |
ee959b00 | 223 | struct Scsi_Host *shost = class_to_shost(dev); |
7a39ac3f | 224 | unsigned int supported_mode = shost->hostt->supported_mode; |
5dc2b89e | 225 | |
7a39ac3f JB |
226 | if (supported_mode == MODE_UNKNOWN) |
227 | /* by default this should be initiator */ | |
228 | supported_mode = MODE_INITIATOR; | |
229 | ||
230 | return show_shost_mode(supported_mode, buf); | |
5dc2b89e FT |
231 | } |
232 | ||
ee959b00 | 233 | static DEVICE_ATTR(supported_mode, S_IRUGO | S_IWUSR, show_shost_supported_mode, NULL); |
5dc2b89e | 234 | |
ee959b00 TJ |
235 | static ssize_t |
236 | show_shost_active_mode(struct device *dev, | |
237 | struct device_attribute *attr, char *buf) | |
5dc2b89e | 238 | { |
ee959b00 | 239 | struct Scsi_Host *shost = class_to_shost(dev); |
5dc2b89e FT |
240 | |
241 | if (shost->active_mode == MODE_UNKNOWN) | |
242 | return snprintf(buf, 20, "unknown\n"); | |
243 | else | |
244 | return show_shost_mode(shost->active_mode, buf); | |
245 | } | |
246 | ||
ee959b00 | 247 | static DEVICE_ATTR(active_mode, S_IRUGO | S_IWUSR, show_shost_active_mode, NULL); |
5dc2b89e | 248 | |
1da177e4 LT |
249 | shost_rd_attr(unique_id, "%u\n"); |
250 | shost_rd_attr(host_busy, "%hu\n"); | |
251 | shost_rd_attr(cmd_per_lun, "%hd\n"); | |
ed632da8 | 252 | shost_rd_attr(can_queue, "%hd\n"); |
1da177e4 LT |
253 | shost_rd_attr(sg_tablesize, "%hu\n"); |
254 | shost_rd_attr(unchecked_isa_dma, "%d\n"); | |
4469f987 MP |
255 | shost_rd_attr(prot_capabilities, "%u\n"); |
256 | shost_rd_attr(prot_guard_type, "%hd\n"); | |
1da177e4 LT |
257 | shost_rd_attr2(proc_name, hostt->proc_name, "%s\n"); |
258 | ||
f7120a4f HR |
259 | static struct attribute *scsi_sysfs_shost_attrs[] = { |
260 | &dev_attr_unique_id.attr, | |
261 | &dev_attr_host_busy.attr, | |
262 | &dev_attr_cmd_per_lun.attr, | |
263 | &dev_attr_can_queue.attr, | |
264 | &dev_attr_sg_tablesize.attr, | |
265 | &dev_attr_unchecked_isa_dma.attr, | |
266 | &dev_attr_proc_name.attr, | |
267 | &dev_attr_scan.attr, | |
268 | &dev_attr_hstate.attr, | |
269 | &dev_attr_supported_mode.attr, | |
270 | &dev_attr_active_mode.attr, | |
4469f987 MP |
271 | &dev_attr_prot_capabilities.attr, |
272 | &dev_attr_prot_guard_type.attr, | |
f7120a4f HR |
273 | NULL |
274 | }; | |
275 | ||
276 | struct attribute_group scsi_shost_attr_group = { | |
277 | .attrs = scsi_sysfs_shost_attrs, | |
278 | }; | |
279 | ||
a4dbd674 | 280 | const struct attribute_group *scsi_sysfs_shost_attr_groups[] = { |
f7120a4f | 281 | &scsi_shost_attr_group, |
1da177e4 LT |
282 | NULL |
283 | }; | |
284 | ||
ee959b00 | 285 | static void scsi_device_cls_release(struct device *class_dev) |
1da177e4 LT |
286 | { |
287 | struct scsi_device *sdev; | |
288 | ||
289 | sdev = class_to_sdev(class_dev); | |
290 | put_device(&sdev->sdev_gendev); | |
291 | } | |
292 | ||
65f27f38 | 293 | static void scsi_device_dev_release_usercontext(struct work_struct *work) |
1da177e4 LT |
294 | { |
295 | struct scsi_device *sdev; | |
296 | struct device *parent; | |
297 | struct scsi_target *starget; | |
a341cd0f | 298 | struct list_head *this, *tmp; |
1da177e4 LT |
299 | unsigned long flags; |
300 | ||
65f27f38 DH |
301 | sdev = container_of(work, struct scsi_device, ew.work); |
302 | ||
303 | parent = sdev->sdev_gendev.parent; | |
1da177e4 LT |
304 | starget = to_scsi_target(parent); |
305 | ||
306 | spin_lock_irqsave(sdev->host->host_lock, flags); | |
307 | starget->reap_ref++; | |
308 | list_del(&sdev->siblings); | |
309 | list_del(&sdev->same_target_siblings); | |
310 | list_del(&sdev->starved_entry); | |
311 | spin_unlock_irqrestore(sdev->host->host_lock, flags); | |
312 | ||
a341cd0f JG |
313 | cancel_work_sync(&sdev->event_work); |
314 | ||
315 | list_for_each_safe(this, tmp, &sdev->event_list) { | |
316 | struct scsi_event *evt; | |
317 | ||
318 | evt = list_entry(this, struct scsi_event, node); | |
319 | list_del(&evt->node); | |
320 | kfree(evt); | |
321 | } | |
322 | ||
1da177e4 LT |
323 | if (sdev->request_queue) { |
324 | sdev->request_queue->queuedata = NULL; | |
65110b21 | 325 | /* user context needed to free queue */ |
1da177e4 | 326 | scsi_free_queue(sdev->request_queue); |
c2a9331c | 327 | /* temporary expedient, try to catch use of queue lock |
328 | * after free of sdev */ | |
329 | sdev->request_queue = NULL; | |
1da177e4 LT |
330 | } |
331 | ||
332 | scsi_target_reap(scsi_target(sdev)); | |
333 | ||
334 | kfree(sdev->inquiry); | |
335 | kfree(sdev); | |
336 | ||
337 | if (parent) | |
338 | put_device(parent); | |
339 | } | |
340 | ||
65110b21 JB |
341 | static void scsi_device_dev_release(struct device *dev) |
342 | { | |
ffedb452 | 343 | struct scsi_device *sdp = to_scsi_device(dev); |
65f27f38 | 344 | execute_in_process_context(scsi_device_dev_release_usercontext, |
ffedb452 | 345 | &sdp->ew); |
65110b21 JB |
346 | } |
347 | ||
52c1da39 | 348 | static struct class sdev_class = { |
1da177e4 | 349 | .name = "scsi_device", |
ee959b00 | 350 | .dev_release = scsi_device_cls_release, |
1da177e4 LT |
351 | }; |
352 | ||
353 | /* all probing is done in the individual ->probe routines */ | |
354 | static int scsi_bus_match(struct device *dev, struct device_driver *gendrv) | |
355 | { | |
b0ed4336 HR |
356 | struct scsi_device *sdp; |
357 | ||
358 | if (dev->type != &scsi_dev_type) | |
359 | return 0; | |
360 | ||
361 | sdp = to_scsi_device(dev); | |
1da177e4 LT |
362 | if (sdp->no_uld_attach) |
363 | return 0; | |
364 | return (sdp->inq_periph_qual == SCSI_INQ_PQ_CON)? 1: 0; | |
365 | } | |
366 | ||
7eff2e7a | 367 | static int scsi_bus_uevent(struct device *dev, struct kobj_uevent_env *env) |
d7b8bcb0 | 368 | { |
1f42ea7b JB |
369 | struct scsi_device *sdev; |
370 | ||
371 | if (dev->type != &scsi_dev_type) | |
372 | return 0; | |
373 | ||
374 | sdev = to_scsi_device(dev); | |
d7b8bcb0 | 375 | |
7eff2e7a | 376 | add_uevent_var(env, "MODALIAS=" SCSI_DEVICE_MODALIAS_FMT, sdev->type); |
d7b8bcb0 MT |
377 | return 0; |
378 | } | |
379 | ||
1da177e4 LT |
380 | struct bus_type scsi_bus_type = { |
381 | .name = "scsi", | |
382 | .match = scsi_bus_match, | |
d7b8bcb0 | 383 | .uevent = scsi_bus_uevent, |
e6da54d8 | 384 | #ifdef CONFIG_PM_OPS |
db5bd1e0 | 385 | .pm = &scsi_bus_pm_ops, |
e6da54d8 | 386 | #endif |
1da177e4 | 387 | }; |
a6a8d9f8 | 388 | EXPORT_SYMBOL_GPL(scsi_bus_type); |
1da177e4 LT |
389 | |
390 | int scsi_sysfs_register(void) | |
391 | { | |
392 | int error; | |
393 | ||
394 | error = bus_register(&scsi_bus_type); | |
395 | if (!error) { | |
396 | error = class_register(&sdev_class); | |
397 | if (error) | |
398 | bus_unregister(&scsi_bus_type); | |
399 | } | |
400 | ||
401 | return error; | |
402 | } | |
403 | ||
404 | void scsi_sysfs_unregister(void) | |
405 | { | |
406 | class_unregister(&sdev_class); | |
407 | bus_unregister(&scsi_bus_type); | |
408 | } | |
409 | ||
410 | /* | |
411 | * sdev_show_function: macro to create an attr function that can be used to | |
412 | * show a non-bit field. | |
413 | */ | |
414 | #define sdev_show_function(field, format_string) \ | |
415 | static ssize_t \ | |
ee959b00 TJ |
416 | sdev_show_##field (struct device *dev, struct device_attribute *attr, \ |
417 | char *buf) \ | |
1da177e4 LT |
418 | { \ |
419 | struct scsi_device *sdev; \ | |
420 | sdev = to_scsi_device(dev); \ | |
421 | return snprintf (buf, 20, format_string, sdev->field); \ | |
422 | } \ | |
423 | ||
424 | /* | |
425 | * sdev_rd_attr: macro to create a function and attribute variable for a | |
426 | * read only field. | |
427 | */ | |
428 | #define sdev_rd_attr(field, format_string) \ | |
429 | sdev_show_function(field, format_string) \ | |
430 | static DEVICE_ATTR(field, S_IRUGO, sdev_show_##field, NULL); | |
431 | ||
432 | ||
433 | /* | |
160e7f67 | 434 | * sdev_rw_attr: create a function and attribute variable for a |
1da177e4 LT |
435 | * read/write field. |
436 | */ | |
437 | #define sdev_rw_attr(field, format_string) \ | |
438 | sdev_show_function(field, format_string) \ | |
439 | \ | |
440 | static ssize_t \ | |
ee959b00 TJ |
441 | sdev_store_##field (struct device *dev, struct device_attribute *attr, \ |
442 | const char *buf, size_t count) \ | |
1da177e4 LT |
443 | { \ |
444 | struct scsi_device *sdev; \ | |
445 | sdev = to_scsi_device(dev); \ | |
160e7f67 | 446 | sscanf (buf, format_string, &sdev->field); \ |
1da177e4 LT |
447 | return count; \ |
448 | } \ | |
449 | static DEVICE_ATTR(field, S_IRUGO | S_IWUSR, sdev_show_##field, sdev_store_##field); | |
450 | ||
451 | /* Currently we don't export bit fields, but we might in future, | |
452 | * so leave this code in */ | |
453 | #if 0 | |
454 | /* | |
455 | * sdev_rd_attr: create a function and attribute variable for a | |
456 | * read/write bit field. | |
457 | */ | |
458 | #define sdev_rw_attr_bit(field) \ | |
459 | sdev_show_function(field, "%d\n") \ | |
460 | \ | |
461 | static ssize_t \ | |
ee959b00 TJ |
462 | sdev_store_##field (struct device *dev, struct device_attribute *attr, \ |
463 | const char *buf, size_t count) \ | |
1da177e4 LT |
464 | { \ |
465 | int ret; \ | |
466 | struct scsi_device *sdev; \ | |
467 | ret = scsi_sdev_check_buf_bit(buf); \ | |
468 | if (ret >= 0) { \ | |
469 | sdev = to_scsi_device(dev); \ | |
470 | sdev->field = ret; \ | |
471 | ret = count; \ | |
472 | } \ | |
473 | return ret; \ | |
474 | } \ | |
475 | static DEVICE_ATTR(field, S_IRUGO | S_IWUSR, sdev_show_##field, sdev_store_##field); | |
476 | ||
477 | /* | |
478 | * scsi_sdev_check_buf_bit: return 0 if buf is "0", return 1 if buf is "1", | |
479 | * else return -EINVAL. | |
480 | */ | |
481 | static int scsi_sdev_check_buf_bit(const char *buf) | |
482 | { | |
483 | if ((buf[1] == '\0') || ((buf[1] == '\n') && (buf[2] == '\0'))) { | |
484 | if (buf[0] == '1') | |
485 | return 1; | |
486 | else if (buf[0] == '0') | |
487 | return 0; | |
488 | else | |
489 | return -EINVAL; | |
490 | } else | |
491 | return -EINVAL; | |
492 | } | |
493 | #endif | |
494 | /* | |
495 | * Create the actual show/store functions and data structures. | |
496 | */ | |
497 | sdev_rd_attr (device_blocked, "%d\n"); | |
498 | sdev_rd_attr (queue_depth, "%d\n"); | |
499 | sdev_rd_attr (type, "%d\n"); | |
500 | sdev_rd_attr (scsi_level, "%d\n"); | |
501 | sdev_rd_attr (vendor, "%.8s\n"); | |
502 | sdev_rd_attr (model, "%.16s\n"); | |
503 | sdev_rd_attr (rev, "%.4s\n"); | |
504 | ||
242f9dcb JA |
505 | /* |
506 | * TODO: can we make these symlinks to the block layer ones? | |
507 | */ | |
1da177e4 | 508 | static ssize_t |
10523b3b | 509 | sdev_show_timeout (struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
510 | { |
511 | struct scsi_device *sdev; | |
512 | sdev = to_scsi_device(dev); | |
242f9dcb | 513 | return snprintf(buf, 20, "%d\n", sdev->request_queue->rq_timeout / HZ); |
1da177e4 LT |
514 | } |
515 | ||
516 | static ssize_t | |
ee959b00 TJ |
517 | sdev_store_timeout (struct device *dev, struct device_attribute *attr, |
518 | const char *buf, size_t count) | |
1da177e4 LT |
519 | { |
520 | struct scsi_device *sdev; | |
521 | int timeout; | |
522 | sdev = to_scsi_device(dev); | |
523 | sscanf (buf, "%d\n", &timeout); | |
242f9dcb | 524 | blk_queue_rq_timeout(sdev->request_queue, timeout * HZ); |
1da177e4 LT |
525 | return count; |
526 | } | |
527 | static DEVICE_ATTR(timeout, S_IRUGO | S_IWUSR, sdev_show_timeout, sdev_store_timeout); | |
528 | ||
529 | static ssize_t | |
ee959b00 TJ |
530 | store_rescan_field (struct device *dev, struct device_attribute *attr, |
531 | const char *buf, size_t count) | |
1da177e4 LT |
532 | { |
533 | scsi_rescan_device(dev); | |
534 | return count; | |
535 | } | |
536 | static DEVICE_ATTR(rescan, S_IWUSR, NULL, store_rescan_field); | |
537 | ||
d9a9cdfb AS |
538 | static void sdev_store_delete_callback(struct device *dev) |
539 | { | |
540 | scsi_remove_device(to_scsi_device(dev)); | |
541 | } | |
542 | ||
ee959b00 TJ |
543 | static ssize_t |
544 | sdev_store_delete(struct device *dev, struct device_attribute *attr, | |
545 | const char *buf, size_t count) | |
1da177e4 | 546 | { |
d9a9cdfb AS |
547 | int rc; |
548 | ||
549 | /* An attribute cannot be unregistered by one of its own methods, | |
550 | * so we have to use this roundabout approach. | |
551 | */ | |
552 | rc = device_schedule_callback(dev, sdev_store_delete_callback); | |
553 | if (rc) | |
554 | count = rc; | |
1da177e4 LT |
555 | return count; |
556 | }; | |
557 | static DEVICE_ATTR(delete, S_IWUSR, NULL, sdev_store_delete); | |
558 | ||
559 | static ssize_t | |
ee959b00 TJ |
560 | store_state_field(struct device *dev, struct device_attribute *attr, |
561 | const char *buf, size_t count) | |
1da177e4 LT |
562 | { |
563 | int i; | |
564 | struct scsi_device *sdev = to_scsi_device(dev); | |
565 | enum scsi_device_state state = 0; | |
566 | ||
6391a113 | 567 | for (i = 0; i < ARRAY_SIZE(sdev_states); i++) { |
1da177e4 LT |
568 | const int len = strlen(sdev_states[i].name); |
569 | if (strncmp(sdev_states[i].name, buf, len) == 0 && | |
570 | buf[len] == '\n') { | |
571 | state = sdev_states[i].value; | |
572 | break; | |
573 | } | |
574 | } | |
575 | if (!state) | |
576 | return -EINVAL; | |
577 | ||
578 | if (scsi_device_set_state(sdev, state)) | |
579 | return -EINVAL; | |
580 | return count; | |
581 | } | |
582 | ||
583 | static ssize_t | |
10523b3b | 584 | show_state_field(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
585 | { |
586 | struct scsi_device *sdev = to_scsi_device(dev); | |
587 | const char *name = scsi_device_state_name(sdev->sdev_state); | |
588 | ||
589 | if (!name) | |
590 | return -EINVAL; | |
591 | ||
592 | return snprintf(buf, 20, "%s\n", name); | |
593 | } | |
594 | ||
595 | static DEVICE_ATTR(state, S_IRUGO | S_IWUSR, show_state_field, store_state_field); | |
596 | ||
597 | static ssize_t | |
ee959b00 TJ |
598 | show_queue_type_field(struct device *dev, struct device_attribute *attr, |
599 | char *buf) | |
1da177e4 LT |
600 | { |
601 | struct scsi_device *sdev = to_scsi_device(dev); | |
602 | const char *name = "none"; | |
603 | ||
604 | if (sdev->ordered_tags) | |
605 | name = "ordered"; | |
606 | else if (sdev->simple_tags) | |
607 | name = "simple"; | |
608 | ||
609 | return snprintf(buf, 20, "%s\n", name); | |
610 | } | |
611 | ||
612 | static DEVICE_ATTR(queue_type, S_IRUGO, show_queue_type_field, NULL); | |
613 | ||
614 | static ssize_t | |
ee959b00 | 615 | show_iostat_counterbits(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
616 | { |
617 | return snprintf(buf, 20, "%d\n", (int)sizeof(atomic_t) * 8); | |
618 | } | |
619 | ||
620 | static DEVICE_ATTR(iocounterbits, S_IRUGO, show_iostat_counterbits, NULL); | |
621 | ||
622 | #define show_sdev_iostat(field) \ | |
623 | static ssize_t \ | |
ee959b00 TJ |
624 | show_iostat_##field(struct device *dev, struct device_attribute *attr, \ |
625 | char *buf) \ | |
1da177e4 LT |
626 | { \ |
627 | struct scsi_device *sdev = to_scsi_device(dev); \ | |
628 | unsigned long long count = atomic_read(&sdev->field); \ | |
629 | return snprintf(buf, 20, "0x%llx\n", count); \ | |
630 | } \ | |
631 | static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL) | |
632 | ||
633 | show_sdev_iostat(iorequest_cnt); | |
634 | show_sdev_iostat(iodone_cnt); | |
635 | show_sdev_iostat(ioerr_cnt); | |
636 | ||
d7b8bcb0 MT |
637 | static ssize_t |
638 | sdev_show_modalias(struct device *dev, struct device_attribute *attr, char *buf) | |
639 | { | |
640 | struct scsi_device *sdev; | |
641 | sdev = to_scsi_device(dev); | |
642 | return snprintf (buf, 20, SCSI_DEVICE_MODALIAS_FMT "\n", sdev->type); | |
643 | } | |
644 | static DEVICE_ATTR(modalias, S_IRUGO, sdev_show_modalias, NULL); | |
1da177e4 | 645 | |
a341cd0f JG |
646 | #define DECLARE_EVT_SHOW(name, Cap_name) \ |
647 | static ssize_t \ | |
648 | sdev_show_evt_##name(struct device *dev, struct device_attribute *attr, \ | |
ee959b00 | 649 | char *buf) \ |
a341cd0f JG |
650 | { \ |
651 | struct scsi_device *sdev = to_scsi_device(dev); \ | |
652 | int val = test_bit(SDEV_EVT_##Cap_name, sdev->supported_events);\ | |
653 | return snprintf(buf, 20, "%d\n", val); \ | |
654 | } | |
655 | ||
656 | #define DECLARE_EVT_STORE(name, Cap_name) \ | |
657 | static ssize_t \ | |
ee959b00 | 658 | sdev_store_evt_##name(struct device *dev, struct device_attribute *attr,\ |
a341cd0f JG |
659 | const char *buf, size_t count) \ |
660 | { \ | |
661 | struct scsi_device *sdev = to_scsi_device(dev); \ | |
662 | int val = simple_strtoul(buf, NULL, 0); \ | |
663 | if (val == 0) \ | |
664 | clear_bit(SDEV_EVT_##Cap_name, sdev->supported_events); \ | |
665 | else if (val == 1) \ | |
666 | set_bit(SDEV_EVT_##Cap_name, sdev->supported_events); \ | |
667 | else \ | |
668 | return -EINVAL; \ | |
669 | return count; \ | |
670 | } | |
671 | ||
672 | #define DECLARE_EVT(name, Cap_name) \ | |
673 | DECLARE_EVT_SHOW(name, Cap_name) \ | |
674 | DECLARE_EVT_STORE(name, Cap_name) \ | |
675 | static DEVICE_ATTR(evt_##name, S_IRUGO, sdev_show_evt_##name, \ | |
676 | sdev_store_evt_##name); | |
677 | #define REF_EVT(name) &dev_attr_evt_##name.attr | |
678 | ||
679 | DECLARE_EVT(media_change, MEDIA_CHANGE) | |
680 | ||
1da177e4 | 681 | /* Default template for device attributes. May NOT be modified */ |
bfd12944 KS |
682 | static struct attribute *scsi_sdev_attrs[] = { |
683 | &dev_attr_device_blocked.attr, | |
684 | &dev_attr_type.attr, | |
685 | &dev_attr_scsi_level.attr, | |
686 | &dev_attr_vendor.attr, | |
687 | &dev_attr_model.attr, | |
688 | &dev_attr_rev.attr, | |
689 | &dev_attr_rescan.attr, | |
690 | &dev_attr_delete.attr, | |
691 | &dev_attr_state.attr, | |
692 | &dev_attr_timeout.attr, | |
693 | &dev_attr_iocounterbits.attr, | |
694 | &dev_attr_iorequest_cnt.attr, | |
695 | &dev_attr_iodone_cnt.attr, | |
696 | &dev_attr_ioerr_cnt.attr, | |
697 | &dev_attr_modalias.attr, | |
a341cd0f | 698 | REF_EVT(media_change), |
bfd12944 KS |
699 | NULL |
700 | }; | |
701 | ||
702 | static struct attribute_group scsi_sdev_attr_group = { | |
703 | .attrs = scsi_sdev_attrs, | |
704 | }; | |
705 | ||
a4dbd674 | 706 | static const struct attribute_group *scsi_sdev_attr_groups[] = { |
bfd12944 | 707 | &scsi_sdev_attr_group, |
1da177e4 LT |
708 | NULL |
709 | }; | |
710 | ||
ee959b00 TJ |
711 | static ssize_t |
712 | sdev_store_queue_depth_rw(struct device *dev, struct device_attribute *attr, | |
713 | const char *buf, size_t count) | |
1da177e4 LT |
714 | { |
715 | int depth, retval; | |
716 | struct scsi_device *sdev = to_scsi_device(dev); | |
717 | struct scsi_host_template *sht = sdev->host->hostt; | |
718 | ||
719 | if (!sht->change_queue_depth) | |
720 | return -EINVAL; | |
721 | ||
722 | depth = simple_strtoul(buf, NULL, 0); | |
723 | ||
724 | if (depth < 1) | |
725 | return -EINVAL; | |
726 | ||
e881a172 MC |
727 | retval = sht->change_queue_depth(sdev, depth, |
728 | SCSI_QDEPTH_DEFAULT); | |
1da177e4 LT |
729 | if (retval < 0) |
730 | return retval; | |
731 | ||
4a84067d VD |
732 | sdev->max_queue_depth = sdev->queue_depth; |
733 | ||
1da177e4 LT |
734 | return count; |
735 | } | |
736 | ||
737 | static struct device_attribute sdev_attr_queue_depth_rw = | |
738 | __ATTR(queue_depth, S_IRUGO | S_IWUSR, sdev_show_queue_depth, | |
739 | sdev_store_queue_depth_rw); | |
740 | ||
4a84067d VD |
741 | static ssize_t |
742 | sdev_show_queue_ramp_up_period(struct device *dev, | |
743 | struct device_attribute *attr, | |
744 | char *buf) | |
745 | { | |
746 | struct scsi_device *sdev; | |
747 | sdev = to_scsi_device(dev); | |
748 | return snprintf(buf, 20, "%u\n", | |
749 | jiffies_to_msecs(sdev->queue_ramp_up_period)); | |
750 | } | |
751 | ||
752 | static ssize_t | |
753 | sdev_store_queue_ramp_up_period(struct device *dev, | |
754 | struct device_attribute *attr, | |
755 | const char *buf, size_t count) | |
756 | { | |
757 | struct scsi_device *sdev = to_scsi_device(dev); | |
758 | unsigned long period; | |
759 | ||
760 | if (strict_strtoul(buf, 10, &period)) | |
761 | return -EINVAL; | |
762 | ||
763 | sdev->queue_ramp_up_period = msecs_to_jiffies(period); | |
764 | return period; | |
765 | } | |
766 | ||
767 | static struct device_attribute sdev_attr_queue_ramp_up_period = | |
768 | __ATTR(queue_ramp_up_period, S_IRUGO | S_IWUSR, | |
769 | sdev_show_queue_ramp_up_period, | |
770 | sdev_store_queue_ramp_up_period); | |
771 | ||
ee959b00 TJ |
772 | static ssize_t |
773 | sdev_store_queue_type_rw(struct device *dev, struct device_attribute *attr, | |
774 | const char *buf, size_t count) | |
1da177e4 LT |
775 | { |
776 | struct scsi_device *sdev = to_scsi_device(dev); | |
777 | struct scsi_host_template *sht = sdev->host->hostt; | |
778 | int tag_type = 0, retval; | |
779 | int prev_tag_type = scsi_get_tag_type(sdev); | |
780 | ||
781 | if (!sdev->tagged_supported || !sht->change_queue_type) | |
782 | return -EINVAL; | |
783 | ||
784 | if (strncmp(buf, "ordered", 7) == 0) | |
785 | tag_type = MSG_ORDERED_TAG; | |
786 | else if (strncmp(buf, "simple", 6) == 0) | |
787 | tag_type = MSG_SIMPLE_TAG; | |
788 | else if (strncmp(buf, "none", 4) != 0) | |
789 | return -EINVAL; | |
790 | ||
791 | if (tag_type == prev_tag_type) | |
792 | return count; | |
793 | ||
794 | retval = sht->change_queue_type(sdev, tag_type); | |
795 | if (retval < 0) | |
796 | return retval; | |
797 | ||
798 | return count; | |
799 | } | |
800 | ||
643eb2d9 JB |
801 | static int scsi_target_add(struct scsi_target *starget) |
802 | { | |
803 | int error; | |
804 | ||
805 | if (starget->state != STARGET_CREATED) | |
806 | return 0; | |
807 | ||
808 | error = device_add(&starget->dev); | |
809 | if (error) { | |
810 | dev_err(&starget->dev, "target device_add failed, error %d\n", error); | |
643eb2d9 JB |
811 | return error; |
812 | } | |
813 | transport_add_device(&starget->dev); | |
814 | starget->state = STARGET_RUNNING; | |
815 | ||
bc4f2401 AS |
816 | pm_runtime_set_active(&starget->dev); |
817 | pm_runtime_enable(&starget->dev); | |
818 | device_enable_async_suspend(&starget->dev); | |
819 | ||
643eb2d9 JB |
820 | return 0; |
821 | } | |
822 | ||
1da177e4 LT |
823 | static struct device_attribute sdev_attr_queue_type_rw = |
824 | __ATTR(queue_type, S_IRUGO | S_IWUSR, show_queue_type_field, | |
825 | sdev_store_queue_type_rw); | |
826 | ||
1da177e4 LT |
827 | /** |
828 | * scsi_sysfs_add_sdev - add scsi device to sysfs | |
829 | * @sdev: scsi_device to add | |
830 | * | |
831 | * Return value: | |
832 | * 0 on Success / non-zero on Failure | |
833 | **/ | |
834 | int scsi_sysfs_add_sdev(struct scsi_device *sdev) | |
835 | { | |
836 | int error, i; | |
80ed71ce | 837 | struct request_queue *rq = sdev->request_queue; |
643eb2d9 | 838 | struct scsi_target *starget = sdev->sdev_target; |
1da177e4 | 839 | |
ee37e09d AS |
840 | error = scsi_device_set_state(sdev, SDEV_RUNNING); |
841 | if (error) | |
1da177e4 LT |
842 | return error; |
843 | ||
643eb2d9 JB |
844 | error = scsi_target_add(starget); |
845 | if (error) | |
846 | return error; | |
847 | ||
848 | transport_configure_device(&starget->dev); | |
bc4f2401 | 849 | |
4cb077d9 | 850 | device_enable_async_suspend(&sdev->sdev_gendev); |
bc4f2401 AS |
851 | scsi_autopm_get_target(starget); |
852 | pm_runtime_set_active(&sdev->sdev_gendev); | |
853 | pm_runtime_forbid(&sdev->sdev_gendev); | |
854 | pm_runtime_enable(&sdev->sdev_gendev); | |
855 | scsi_autopm_put_target(starget); | |
856 | ||
857 | /* The following call will keep sdev active indefinitely, until | |
858 | * its driver does a corresponding scsi_autopm_pm_device(). Only | |
859 | * drivers supporting autosuspend will do this. | |
860 | */ | |
861 | scsi_autopm_get_device(sdev); | |
862 | ||
1da177e4 LT |
863 | error = device_add(&sdev->sdev_gendev); |
864 | if (error) { | |
1da177e4 | 865 | printk(KERN_INFO "error 1\n"); |
ee37e09d | 866 | return error; |
1da177e4 | 867 | } |
4cb077d9 | 868 | device_enable_async_suspend(&sdev->sdev_dev); |
ee959b00 | 869 | error = device_add(&sdev->sdev_dev); |
1da177e4 LT |
870 | if (error) { |
871 | printk(KERN_INFO "error 2\n"); | |
860dc736 | 872 | device_del(&sdev->sdev_gendev); |
ee37e09d | 873 | return error; |
1da177e4 | 874 | } |
860dc736 JB |
875 | transport_add_device(&sdev->sdev_gendev); |
876 | sdev->is_visible = 1; | |
1da177e4 | 877 | |
bfd12944 | 878 | /* create queue files, which may be writable, depending on the host */ |
4a84067d VD |
879 | if (sdev->host->hostt->change_queue_depth) { |
880 | error = device_create_file(&sdev->sdev_gendev, | |
881 | &sdev_attr_queue_depth_rw); | |
882 | error = device_create_file(&sdev->sdev_gendev, | |
883 | &sdev_attr_queue_ramp_up_period); | |
884 | } | |
bfd12944 KS |
885 | else |
886 | error = device_create_file(&sdev->sdev_gendev, &dev_attr_queue_depth); | |
860dc736 | 887 | if (error) |
ee37e09d | 888 | return error; |
860dc736 | 889 | |
bfd12944 KS |
890 | if (sdev->host->hostt->change_queue_type) |
891 | error = device_create_file(&sdev->sdev_gendev, &sdev_attr_queue_type_rw); | |
892 | else | |
893 | error = device_create_file(&sdev->sdev_gendev, &dev_attr_queue_type); | |
860dc736 | 894 | if (error) |
ee37e09d | 895 | return error; |
bfd12944 | 896 | |
97f46ae4 | 897 | error = bsg_register_queue(rq, &sdev->sdev_gendev, NULL, NULL); |
80ed71ce JB |
898 | |
899 | if (error) | |
860dc736 JB |
900 | /* we're treating error on bsg register as non-fatal, |
901 | * so pretend nothing went wrong */ | |
80ed71ce JB |
902 | sdev_printk(KERN_INFO, sdev, |
903 | "Failed to register bsg queue, errno=%d\n", error); | |
904 | ||
bfd12944 | 905 | /* add additional host specific attributes */ |
1da177e4 LT |
906 | if (sdev->host->hostt->sdev_attrs) { |
907 | for (i = 0; sdev->host->hostt->sdev_attrs[i]; i++) { | |
bfd12944 | 908 | error = device_create_file(&sdev->sdev_gendev, |
1da177e4 | 909 | sdev->host->hostt->sdev_attrs[i]); |
860dc736 | 910 | if (error) |
ee37e09d | 911 | return error; |
1da177e4 LT |
912 | } |
913 | } | |
1da177e4 | 914 | |
1da177e4 LT |
915 | return error; |
916 | } | |
917 | ||
903f4fed | 918 | void __scsi_remove_device(struct scsi_device *sdev) |
1da177e4 | 919 | { |
df133c21 JB |
920 | struct device *dev = &sdev->sdev_gendev; |
921 | ||
860dc736 JB |
922 | if (sdev->is_visible) { |
923 | if (scsi_device_set_state(sdev, SDEV_CANCEL) != 0) | |
924 | return; | |
1da177e4 | 925 | |
860dc736 JB |
926 | bsg_unregister_queue(sdev->request_queue); |
927 | device_unregister(&sdev->sdev_dev); | |
928 | transport_remove_device(dev); | |
929 | device_del(dev); | |
930 | } else | |
931 | put_device(&sdev->sdev_dev); | |
1da177e4 LT |
932 | scsi_device_set_state(sdev, SDEV_DEL); |
933 | if (sdev->host->hostt->slave_destroy) | |
934 | sdev->host->hostt->slave_destroy(sdev); | |
df133c21 JB |
935 | transport_destroy_device(dev); |
936 | put_device(dev); | |
903f4fed AS |
937 | } |
938 | ||
939 | /** | |
940 | * scsi_remove_device - unregister a device from the scsi bus | |
941 | * @sdev: scsi_device to unregister | |
942 | **/ | |
943 | void scsi_remove_device(struct scsi_device *sdev) | |
944 | { | |
54195002 AS |
945 | struct Scsi_Host *shost = sdev->host; |
946 | ||
0b950672 | 947 | mutex_lock(&shost->scan_mutex); |
903f4fed | 948 | __scsi_remove_device(sdev); |
0b950672 | 949 | mutex_unlock(&shost->scan_mutex); |
1da177e4 LT |
950 | } |
951 | EXPORT_SYMBOL(scsi_remove_device); | |
952 | ||
44818efb | 953 | static void __scsi_remove_target(struct scsi_target *starget) |
1da177e4 LT |
954 | { |
955 | struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); | |
956 | unsigned long flags; | |
a64358db | 957 | struct scsi_device *sdev; |
1da177e4 LT |
958 | |
959 | spin_lock_irqsave(shost->host_lock, flags); | |
960 | starget->reap_ref++; | |
a64358db AS |
961 | restart: |
962 | list_for_each_entry(sdev, &shost->__devices, siblings) { | |
1da177e4 | 963 | if (sdev->channel != starget->channel || |
a64358db AS |
964 | sdev->id != starget->id || |
965 | sdev->sdev_state == SDEV_DEL) | |
1da177e4 LT |
966 | continue; |
967 | spin_unlock_irqrestore(shost->host_lock, flags); | |
968 | scsi_remove_device(sdev); | |
969 | spin_lock_irqsave(shost->host_lock, flags); | |
a64358db | 970 | goto restart; |
1da177e4 LT |
971 | } |
972 | spin_unlock_irqrestore(shost->host_lock, flags); | |
973 | scsi_target_reap(starget); | |
974 | } | |
975 | ||
20b1e674 | 976 | static int __remove_child (struct device * dev, void * data) |
977 | { | |
978 | if (scsi_is_target_device(dev)) | |
979 | __scsi_remove_target(to_scsi_target(dev)); | |
980 | return 0; | |
981 | } | |
982 | ||
1da177e4 LT |
983 | /** |
984 | * scsi_remove_target - try to remove a target and all its devices | |
985 | * @dev: generic starget or parent of generic stargets to be removed | |
986 | * | |
987 | * Note: This is slightly racy. It is possible that if the user | |
988 | * requests the addition of another device then the target won't be | |
989 | * removed. | |
990 | */ | |
991 | void scsi_remove_target(struct device *dev) | |
992 | { | |
20b1e674 | 993 | struct device *rdev; |
1da177e4 LT |
994 | |
995 | if (scsi_is_target_device(dev)) { | |
996 | __scsi_remove_target(to_scsi_target(dev)); | |
997 | return; | |
998 | } | |
999 | ||
1000 | rdev = get_device(dev); | |
20b1e674 | 1001 | device_for_each_child(dev, NULL, __remove_child); |
1da177e4 LT |
1002 | put_device(rdev); |
1003 | } | |
1004 | EXPORT_SYMBOL(scsi_remove_target); | |
1005 | ||
1006 | int scsi_register_driver(struct device_driver *drv) | |
1007 | { | |
1008 | drv->bus = &scsi_bus_type; | |
1009 | ||
1010 | return driver_register(drv); | |
1011 | } | |
1012 | EXPORT_SYMBOL(scsi_register_driver); | |
1013 | ||
1014 | int scsi_register_interface(struct class_interface *intf) | |
1015 | { | |
1016 | intf->class = &sdev_class; | |
1017 | ||
1018 | return class_interface_register(intf); | |
1019 | } | |
1020 | EXPORT_SYMBOL(scsi_register_interface); | |
1021 | ||
1da177e4 LT |
1022 | /** |
1023 | * scsi_sysfs_add_host - add scsi host to subsystem | |
1024 | * @shost: scsi host struct to add to subsystem | |
1da177e4 LT |
1025 | **/ |
1026 | int scsi_sysfs_add_host(struct Scsi_Host *shost) | |
1027 | { | |
1028 | int error, i; | |
1029 | ||
f7120a4f | 1030 | /* add host specific attributes */ |
1da177e4 LT |
1031 | if (shost->hostt->shost_attrs) { |
1032 | for (i = 0; shost->hostt->shost_attrs[i]; i++) { | |
ee959b00 | 1033 | error = device_create_file(&shost->shost_dev, |
f7120a4f | 1034 | shost->hostt->shost_attrs[i]); |
1da177e4 LT |
1035 | if (error) |
1036 | return error; | |
1037 | } | |
1038 | } | |
1039 | ||
1040 | transport_register_device(&shost->shost_gendev); | |
d52b3815 | 1041 | transport_configure_device(&shost->shost_gendev); |
1da177e4 LT |
1042 | return 0; |
1043 | } | |
1044 | ||
bfd12944 KS |
1045 | static struct device_type scsi_dev_type = { |
1046 | .name = "scsi_device", | |
1047 | .release = scsi_device_dev_release, | |
1048 | .groups = scsi_sdev_attr_groups, | |
1049 | }; | |
1050 | ||
1da177e4 LT |
1051 | void scsi_sysfs_device_initialize(struct scsi_device *sdev) |
1052 | { | |
1053 | unsigned long flags; | |
1054 | struct Scsi_Host *shost = sdev->host; | |
1055 | struct scsi_target *starget = sdev->sdev_target; | |
1056 | ||
1057 | device_initialize(&sdev->sdev_gendev); | |
1058 | sdev->sdev_gendev.bus = &scsi_bus_type; | |
bfd12944 | 1059 | sdev->sdev_gendev.type = &scsi_dev_type; |
71610f55 KS |
1060 | dev_set_name(&sdev->sdev_gendev, "%d:%d:%d:%d", |
1061 | sdev->host->host_no, sdev->channel, sdev->id, sdev->lun); | |
1062 | ||
ee959b00 | 1063 | device_initialize(&sdev->sdev_dev); |
37e6ba00 | 1064 | sdev->sdev_dev.parent = get_device(&sdev->sdev_gendev); |
ee959b00 | 1065 | sdev->sdev_dev.class = &sdev_class; |
71610f55 KS |
1066 | dev_set_name(&sdev->sdev_dev, "%d:%d:%d:%d", |
1067 | sdev->host->host_no, sdev->channel, sdev->id, sdev->lun); | |
7c9d6f16 | 1068 | sdev->scsi_level = starget->scsi_level; |
1da177e4 LT |
1069 | transport_setup_device(&sdev->sdev_gendev); |
1070 | spin_lock_irqsave(shost->host_lock, flags); | |
1071 | list_add_tail(&sdev->same_target_siblings, &starget->devices); | |
1072 | list_add_tail(&sdev->siblings, &shost->__devices); | |
1073 | spin_unlock_irqrestore(shost->host_lock, flags); | |
1074 | } | |
1075 | ||
1076 | int scsi_is_sdev_device(const struct device *dev) | |
1077 | { | |
13ba9bcb | 1078 | return dev->type == &scsi_dev_type; |
1da177e4 LT |
1079 | } |
1080 | EXPORT_SYMBOL(scsi_is_sdev_device); | |
1081 | ||
1082 | /* A blank transport template that is used in drivers that don't | |
1083 | * yet implement Transport Attributes */ | |
1084 | struct scsi_transport_template blank_transport_template = { { { {NULL, }, }, }, }; |