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c7ebbbce | 1 | /* |
a0125641 | 2 | * Copyright (C) 2005-2006 Dell Inc. |
c7ebbbce CH |
3 | * Released under GPL v2. |
4 | * | |
5 | * Serial Attached SCSI (SAS) transport class. | |
6 | * | |
7 | * The SAS transport class contains common code to deal with SAS HBAs, | |
8 | * an aproximated representation of SAS topologies in the driver model, | |
9 | * and various sysfs attributes to expose these topologies and managment | |
10 | * interfaces to userspace. | |
11 | * | |
12 | * In addition to the basic SCSI core objects this transport class | |
13 | * introduces two additional intermediate objects: The SAS PHY | |
14 | * as represented by struct sas_phy defines an "outgoing" PHY on | |
15 | * a SAS HBA or Expander, and the SAS remote PHY represented by | |
16 | * struct sas_rphy defines an "incoming" PHY on a SAS Expander or | |
17 | * end device. Note that this is purely a software concept, the | |
18 | * underlying hardware for a PHY and a remote PHY is the exactly | |
19 | * the same. | |
20 | * | |
21 | * There is no concept of a SAS port in this code, users can see | |
22 | * what PHYs form a wide port based on the port_identifier attribute, | |
23 | * which is the same for all PHYs in a port. | |
24 | */ | |
25 | ||
26 | #include <linux/init.h> | |
27 | #include <linux/module.h> | |
28 | #include <linux/err.h> | |
8c65b4a6 TS |
29 | #include <linux/slab.h> |
30 | #include <linux/string.h> | |
c7ebbbce | 31 | |
e02f3f59 | 32 | #include <scsi/scsi.h> |
c7ebbbce CH |
33 | #include <scsi/scsi_device.h> |
34 | #include <scsi/scsi_host.h> | |
35 | #include <scsi/scsi_transport.h> | |
36 | #include <scsi/scsi_transport_sas.h> | |
37 | ||
d6159c17 | 38 | #include "scsi_sas_internal.h" |
c7ebbbce CH |
39 | struct sas_host_attrs { |
40 | struct list_head rphy_list; | |
e02f3f59 | 41 | struct mutex lock; |
c7ebbbce | 42 | u32 next_target_id; |
79cb1819 | 43 | u32 next_expander_id; |
c7ebbbce CH |
44 | }; |
45 | #define to_sas_host_attrs(host) ((struct sas_host_attrs *)(host)->shost_data) | |
46 | ||
47 | ||
48 | /* | |
49 | * Hack to allow attributes of the same name in different objects. | |
50 | */ | |
51 | #define SAS_CLASS_DEVICE_ATTR(_prefix,_name,_mode,_show,_store) \ | |
52 | struct class_device_attribute class_device_attr_##_prefix##_##_name = \ | |
53 | __ATTR(_name,_mode,_show,_store) | |
54 | ||
55 | ||
56 | /* | |
57 | * Pretty printing helpers | |
58 | */ | |
59 | ||
60 | #define sas_bitfield_name_match(title, table) \ | |
61 | static ssize_t \ | |
62 | get_sas_##title##_names(u32 table_key, char *buf) \ | |
63 | { \ | |
64 | char *prefix = ""; \ | |
65 | ssize_t len = 0; \ | |
66 | int i; \ | |
67 | \ | |
68 | for (i = 0; i < sizeof(table)/sizeof(table[0]); i++) { \ | |
69 | if (table[i].value & table_key) { \ | |
70 | len += sprintf(buf + len, "%s%s", \ | |
71 | prefix, table[i].name); \ | |
72 | prefix = ", "; \ | |
73 | } \ | |
74 | } \ | |
75 | len += sprintf(buf + len, "\n"); \ | |
76 | return len; \ | |
77 | } | |
78 | ||
79 | #define sas_bitfield_name_search(title, table) \ | |
80 | static ssize_t \ | |
81 | get_sas_##title##_names(u32 table_key, char *buf) \ | |
82 | { \ | |
83 | ssize_t len = 0; \ | |
84 | int i; \ | |
85 | \ | |
86 | for (i = 0; i < sizeof(table)/sizeof(table[0]); i++) { \ | |
87 | if (table[i].value == table_key) { \ | |
88 | len += sprintf(buf + len, "%s", \ | |
89 | table[i].name); \ | |
90 | break; \ | |
91 | } \ | |
92 | } \ | |
93 | len += sprintf(buf + len, "\n"); \ | |
94 | return len; \ | |
95 | } | |
96 | ||
97 | static struct { | |
98 | u32 value; | |
99 | char *name; | |
100 | } sas_device_type_names[] = { | |
101 | { SAS_PHY_UNUSED, "unused" }, | |
102 | { SAS_END_DEVICE, "end device" }, | |
103 | { SAS_EDGE_EXPANDER_DEVICE, "edge expander" }, | |
104 | { SAS_FANOUT_EXPANDER_DEVICE, "fanout expander" }, | |
105 | }; | |
106 | sas_bitfield_name_search(device_type, sas_device_type_names) | |
107 | ||
108 | ||
109 | static struct { | |
110 | u32 value; | |
111 | char *name; | |
112 | } sas_protocol_names[] = { | |
113 | { SAS_PROTOCOL_SATA, "sata" }, | |
114 | { SAS_PROTOCOL_SMP, "smp" }, | |
115 | { SAS_PROTOCOL_STP, "stp" }, | |
116 | { SAS_PROTOCOL_SSP, "ssp" }, | |
117 | }; | |
118 | sas_bitfield_name_match(protocol, sas_protocol_names) | |
119 | ||
120 | static struct { | |
121 | u32 value; | |
122 | char *name; | |
123 | } sas_linkspeed_names[] = { | |
124 | { SAS_LINK_RATE_UNKNOWN, "Unknown" }, | |
125 | { SAS_PHY_DISABLED, "Phy disabled" }, | |
126 | { SAS_LINK_RATE_FAILED, "Link Rate failed" }, | |
127 | { SAS_SATA_SPINUP_HOLD, "Spin-up hold" }, | |
128 | { SAS_LINK_RATE_1_5_GBPS, "1.5 Gbit" }, | |
129 | { SAS_LINK_RATE_3_0_GBPS, "3.0 Gbit" }, | |
7e6dff62 | 130 | { SAS_LINK_RATE_6_0_GBPS, "6.0 Gbit" }, |
c7ebbbce CH |
131 | }; |
132 | sas_bitfield_name_search(linkspeed, sas_linkspeed_names) | |
133 | ||
134 | ||
135 | /* | |
136 | * SAS host attributes | |
137 | */ | |
138 | ||
37be6eeb JB |
139 | static int sas_host_setup(struct transport_container *tc, struct device *dev, |
140 | struct class_device *cdev) | |
c7ebbbce CH |
141 | { |
142 | struct Scsi_Host *shost = dev_to_shost(dev); | |
143 | struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); | |
144 | ||
145 | INIT_LIST_HEAD(&sas_host->rphy_list); | |
e02f3f59 | 146 | mutex_init(&sas_host->lock); |
c7ebbbce | 147 | sas_host->next_target_id = 0; |
79cb1819 | 148 | sas_host->next_expander_id = 0; |
c7ebbbce CH |
149 | return 0; |
150 | } | |
151 | ||
152 | static DECLARE_TRANSPORT_CLASS(sas_host_class, | |
153 | "sas_host", sas_host_setup, NULL, NULL); | |
154 | ||
155 | static int sas_host_match(struct attribute_container *cont, | |
156 | struct device *dev) | |
157 | { | |
158 | struct Scsi_Host *shost; | |
159 | struct sas_internal *i; | |
160 | ||
161 | if (!scsi_is_host_device(dev)) | |
162 | return 0; | |
163 | shost = dev_to_shost(dev); | |
164 | ||
165 | if (!shost->transportt) | |
166 | return 0; | |
167 | if (shost->transportt->host_attrs.ac.class != | |
168 | &sas_host_class.class) | |
169 | return 0; | |
170 | ||
171 | i = to_sas_internal(shost->transportt); | |
172 | return &i->t.host_attrs.ac == cont; | |
173 | } | |
174 | ||
175 | static int do_sas_phy_delete(struct device *dev, void *data) | |
176 | { | |
177 | if (scsi_is_sas_phy(dev)) | |
178 | sas_phy_delete(dev_to_phy(dev)); | |
179 | return 0; | |
180 | } | |
181 | ||
182 | /** | |
183 | * sas_remove_host -- tear down a Scsi_Host's SAS data structures | |
184 | * @shost: Scsi Host that is torn down | |
185 | * | |
186 | * Removes all SAS PHYs and remote PHYs for a given Scsi_Host. | |
187 | * Must be called just before scsi_remove_host for SAS HBAs. | |
188 | */ | |
189 | void sas_remove_host(struct Scsi_Host *shost) | |
190 | { | |
191 | device_for_each_child(&shost->shost_gendev, NULL, do_sas_phy_delete); | |
192 | } | |
193 | EXPORT_SYMBOL(sas_remove_host); | |
194 | ||
195 | ||
196 | /* | |
197 | * SAS Port attributes | |
198 | */ | |
199 | ||
200 | #define sas_phy_show_simple(field, name, format_string, cast) \ | |
201 | static ssize_t \ | |
202 | show_sas_phy_##name(struct class_device *cdev, char *buf) \ | |
203 | { \ | |
204 | struct sas_phy *phy = transport_class_to_phy(cdev); \ | |
205 | \ | |
206 | return snprintf(buf, 20, format_string, cast phy->field); \ | |
207 | } | |
208 | ||
209 | #define sas_phy_simple_attr(field, name, format_string, type) \ | |
210 | sas_phy_show_simple(field, name, format_string, (type)) \ | |
211 | static CLASS_DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL) | |
212 | ||
213 | #define sas_phy_show_protocol(field, name) \ | |
214 | static ssize_t \ | |
215 | show_sas_phy_##name(struct class_device *cdev, char *buf) \ | |
216 | { \ | |
217 | struct sas_phy *phy = transport_class_to_phy(cdev); \ | |
218 | \ | |
219 | if (!phy->field) \ | |
220 | return snprintf(buf, 20, "none\n"); \ | |
221 | return get_sas_protocol_names(phy->field, buf); \ | |
222 | } | |
223 | ||
224 | #define sas_phy_protocol_attr(field, name) \ | |
225 | sas_phy_show_protocol(field, name) \ | |
226 | static CLASS_DEVICE_ATTR(name, S_IRUGO, show_sas_phy_##name, NULL) | |
227 | ||
228 | #define sas_phy_show_linkspeed(field) \ | |
229 | static ssize_t \ | |
230 | show_sas_phy_##field(struct class_device *cdev, char *buf) \ | |
231 | { \ | |
232 | struct sas_phy *phy = transport_class_to_phy(cdev); \ | |
233 | \ | |
234 | return get_sas_linkspeed_names(phy->field, buf); \ | |
235 | } | |
236 | ||
237 | #define sas_phy_linkspeed_attr(field) \ | |
238 | sas_phy_show_linkspeed(field) \ | |
239 | static CLASS_DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL) | |
240 | ||
c3ee74c4 CH |
241 | #define sas_phy_show_linkerror(field) \ |
242 | static ssize_t \ | |
243 | show_sas_phy_##field(struct class_device *cdev, char *buf) \ | |
244 | { \ | |
245 | struct sas_phy *phy = transport_class_to_phy(cdev); \ | |
246 | struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); \ | |
247 | struct sas_internal *i = to_sas_internal(shost->transportt); \ | |
248 | int error; \ | |
249 | \ | |
ac01bbbd CH |
250 | if (!phy->local_attached) \ |
251 | return -EINVAL; \ | |
252 | \ | |
dd9fbb52 | 253 | error = i->f->get_linkerrors ? i->f->get_linkerrors(phy) : 0; \ |
c3ee74c4 CH |
254 | if (error) \ |
255 | return error; \ | |
256 | return snprintf(buf, 20, "%u\n", phy->field); \ | |
257 | } | |
258 | ||
259 | #define sas_phy_linkerror_attr(field) \ | |
260 | sas_phy_show_linkerror(field) \ | |
261 | static CLASS_DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL) | |
262 | ||
263 | ||
c7ebbbce CH |
264 | static ssize_t |
265 | show_sas_device_type(struct class_device *cdev, char *buf) | |
266 | { | |
267 | struct sas_phy *phy = transport_class_to_phy(cdev); | |
268 | ||
269 | if (!phy->identify.device_type) | |
270 | return snprintf(buf, 20, "none\n"); | |
271 | return get_sas_device_type_names(phy->identify.device_type, buf); | |
272 | } | |
c7ebbbce CH |
273 | static CLASS_DEVICE_ATTR(device_type, S_IRUGO, show_sas_device_type, NULL); |
274 | ||
07ba3a95 CH |
275 | static ssize_t do_sas_phy_reset(struct class_device *cdev, |
276 | size_t count, int hard_reset) | |
277 | { | |
278 | struct sas_phy *phy = transport_class_to_phy(cdev); | |
279 | struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); | |
280 | struct sas_internal *i = to_sas_internal(shost->transportt); | |
281 | int error; | |
282 | ||
283 | if (!phy->local_attached) | |
284 | return -EINVAL; | |
285 | ||
286 | error = i->f->phy_reset(phy, hard_reset); | |
287 | if (error) | |
288 | return error; | |
289 | return count; | |
290 | }; | |
291 | ||
292 | static ssize_t store_sas_link_reset(struct class_device *cdev, | |
293 | const char *buf, size_t count) | |
294 | { | |
295 | return do_sas_phy_reset(cdev, count, 0); | |
296 | } | |
297 | static CLASS_DEVICE_ATTR(link_reset, S_IWUSR, NULL, store_sas_link_reset); | |
298 | ||
299 | static ssize_t store_sas_hard_reset(struct class_device *cdev, | |
300 | const char *buf, size_t count) | |
301 | { | |
302 | return do_sas_phy_reset(cdev, count, 1); | |
303 | } | |
304 | static CLASS_DEVICE_ATTR(hard_reset, S_IWUSR, NULL, store_sas_hard_reset); | |
305 | ||
c7ebbbce CH |
306 | sas_phy_protocol_attr(identify.initiator_port_protocols, |
307 | initiator_port_protocols); | |
308 | sas_phy_protocol_attr(identify.target_port_protocols, | |
309 | target_port_protocols); | |
310 | sas_phy_simple_attr(identify.sas_address, sas_address, "0x%016llx\n", | |
311 | unsigned long long); | |
312 | sas_phy_simple_attr(identify.phy_identifier, phy_identifier, "%d\n", u8); | |
313 | sas_phy_simple_attr(port_identifier, port_identifier, "%d\n", u8); | |
314 | sas_phy_linkspeed_attr(negotiated_linkrate); | |
315 | sas_phy_linkspeed_attr(minimum_linkrate_hw); | |
316 | sas_phy_linkspeed_attr(minimum_linkrate); | |
317 | sas_phy_linkspeed_attr(maximum_linkrate_hw); | |
318 | sas_phy_linkspeed_attr(maximum_linkrate); | |
c3ee74c4 CH |
319 | sas_phy_linkerror_attr(invalid_dword_count); |
320 | sas_phy_linkerror_attr(running_disparity_error_count); | |
321 | sas_phy_linkerror_attr(loss_of_dword_sync_count); | |
322 | sas_phy_linkerror_attr(phy_reset_problem_count); | |
c7ebbbce CH |
323 | |
324 | ||
325 | static DECLARE_TRANSPORT_CLASS(sas_phy_class, | |
326 | "sas_phy", NULL, NULL, NULL); | |
327 | ||
328 | static int sas_phy_match(struct attribute_container *cont, struct device *dev) | |
329 | { | |
330 | struct Scsi_Host *shost; | |
331 | struct sas_internal *i; | |
332 | ||
333 | if (!scsi_is_sas_phy(dev)) | |
334 | return 0; | |
335 | shost = dev_to_shost(dev->parent); | |
336 | ||
337 | if (!shost->transportt) | |
338 | return 0; | |
339 | if (shost->transportt->host_attrs.ac.class != | |
340 | &sas_host_class.class) | |
341 | return 0; | |
342 | ||
343 | i = to_sas_internal(shost->transportt); | |
344 | return &i->phy_attr_cont.ac == cont; | |
345 | } | |
346 | ||
347 | static void sas_phy_release(struct device *dev) | |
348 | { | |
349 | struct sas_phy *phy = dev_to_phy(dev); | |
350 | ||
351 | put_device(dev->parent); | |
352 | kfree(phy); | |
353 | } | |
354 | ||
355 | /** | |
356 | * sas_phy_alloc -- allocates and initialize a SAS PHY structure | |
357 | * @parent: Parent device | |
d99ca418 | 358 | * @number: Phy index |
c7ebbbce CH |
359 | * |
360 | * Allocates an SAS PHY structure. It will be added in the device tree | |
361 | * below the device specified by @parent, which has to be either a Scsi_Host | |
362 | * or sas_rphy. | |
363 | * | |
364 | * Returns: | |
365 | * SAS PHY allocated or %NULL if the allocation failed. | |
366 | */ | |
367 | struct sas_phy *sas_phy_alloc(struct device *parent, int number) | |
368 | { | |
369 | struct Scsi_Host *shost = dev_to_shost(parent); | |
370 | struct sas_phy *phy; | |
371 | ||
24669f75 | 372 | phy = kzalloc(sizeof(*phy), GFP_KERNEL); |
c7ebbbce CH |
373 | if (!phy) |
374 | return NULL; | |
c7ebbbce | 375 | |
c7ebbbce CH |
376 | phy->number = number; |
377 | ||
378 | device_initialize(&phy->dev); | |
379 | phy->dev.parent = get_device(parent); | |
380 | phy->dev.release = sas_phy_release; | |
79cb1819 JB |
381 | if (scsi_is_sas_expander_device(parent)) { |
382 | struct sas_rphy *rphy = dev_to_rphy(parent); | |
383 | sprintf(phy->dev.bus_id, "phy-%d-%d:%d", shost->host_no, | |
384 | rphy->scsi_target_id, number); | |
385 | } else | |
386 | sprintf(phy->dev.bus_id, "phy-%d:%d", shost->host_no, number); | |
c7ebbbce CH |
387 | |
388 | transport_setup_device(&phy->dev); | |
389 | ||
390 | return phy; | |
391 | } | |
392 | EXPORT_SYMBOL(sas_phy_alloc); | |
393 | ||
394 | /** | |
395 | * sas_phy_add -- add a SAS PHY to the device hierachy | |
396 | * @phy: The PHY to be added | |
397 | * | |
398 | * Publishes a SAS PHY to the rest of the system. | |
399 | */ | |
400 | int sas_phy_add(struct sas_phy *phy) | |
401 | { | |
402 | int error; | |
403 | ||
404 | error = device_add(&phy->dev); | |
405 | if (!error) { | |
406 | transport_add_device(&phy->dev); | |
407 | transport_configure_device(&phy->dev); | |
408 | } | |
409 | ||
410 | return error; | |
411 | } | |
412 | EXPORT_SYMBOL(sas_phy_add); | |
413 | ||
414 | /** | |
415 | * sas_phy_free -- free a SAS PHY | |
416 | * @phy: SAS PHY to free | |
417 | * | |
418 | * Frees the specified SAS PHY. | |
419 | * | |
420 | * Note: | |
421 | * This function must only be called on a PHY that has not | |
422 | * sucessfully been added using sas_phy_add(). | |
423 | */ | |
424 | void sas_phy_free(struct sas_phy *phy) | |
425 | { | |
426 | transport_destroy_device(&phy->dev); | |
92aab646 | 427 | put_device(&phy->dev); |
c7ebbbce CH |
428 | } |
429 | EXPORT_SYMBOL(sas_phy_free); | |
430 | ||
431 | /** | |
432 | * sas_phy_delete -- remove SAS PHY | |
433 | * @phy: SAS PHY to remove | |
434 | * | |
435 | * Removes the specified SAS PHY. If the SAS PHY has an | |
436 | * associated remote PHY it is removed before. | |
437 | */ | |
438 | void | |
439 | sas_phy_delete(struct sas_phy *phy) | |
440 | { | |
441 | struct device *dev = &phy->dev; | |
442 | ||
443 | if (phy->rphy) | |
444 | sas_rphy_delete(phy->rphy); | |
445 | ||
446 | transport_remove_device(dev); | |
447 | device_del(dev); | |
448 | transport_destroy_device(dev); | |
92aab646 | 449 | put_device(dev); |
c7ebbbce CH |
450 | } |
451 | EXPORT_SYMBOL(sas_phy_delete); | |
452 | ||
453 | /** | |
454 | * scsi_is_sas_phy -- check if a struct device represents a SAS PHY | |
455 | * @dev: device to check | |
456 | * | |
457 | * Returns: | |
458 | * %1 if the device represents a SAS PHY, %0 else | |
459 | */ | |
460 | int scsi_is_sas_phy(const struct device *dev) | |
461 | { | |
462 | return dev->release == sas_phy_release; | |
463 | } | |
464 | EXPORT_SYMBOL(scsi_is_sas_phy); | |
465 | ||
466 | /* | |
467 | * SAS remote PHY attributes. | |
468 | */ | |
469 | ||
470 | #define sas_rphy_show_simple(field, name, format_string, cast) \ | |
471 | static ssize_t \ | |
472 | show_sas_rphy_##name(struct class_device *cdev, char *buf) \ | |
473 | { \ | |
474 | struct sas_rphy *rphy = transport_class_to_rphy(cdev); \ | |
475 | \ | |
476 | return snprintf(buf, 20, format_string, cast rphy->field); \ | |
477 | } | |
478 | ||
479 | #define sas_rphy_simple_attr(field, name, format_string, type) \ | |
480 | sas_rphy_show_simple(field, name, format_string, (type)) \ | |
481 | static SAS_CLASS_DEVICE_ATTR(rphy, name, S_IRUGO, \ | |
482 | show_sas_rphy_##name, NULL) | |
483 | ||
484 | #define sas_rphy_show_protocol(field, name) \ | |
485 | static ssize_t \ | |
486 | show_sas_rphy_##name(struct class_device *cdev, char *buf) \ | |
487 | { \ | |
488 | struct sas_rphy *rphy = transport_class_to_rphy(cdev); \ | |
489 | \ | |
490 | if (!rphy->field) \ | |
491 | return snprintf(buf, 20, "none\n"); \ | |
492 | return get_sas_protocol_names(rphy->field, buf); \ | |
493 | } | |
494 | ||
495 | #define sas_rphy_protocol_attr(field, name) \ | |
496 | sas_rphy_show_protocol(field, name) \ | |
497 | static SAS_CLASS_DEVICE_ATTR(rphy, name, S_IRUGO, \ | |
498 | show_sas_rphy_##name, NULL) | |
499 | ||
500 | static ssize_t | |
501 | show_sas_rphy_device_type(struct class_device *cdev, char *buf) | |
502 | { | |
503 | struct sas_rphy *rphy = transport_class_to_rphy(cdev); | |
504 | ||
505 | if (!rphy->identify.device_type) | |
506 | return snprintf(buf, 20, "none\n"); | |
507 | return get_sas_device_type_names( | |
508 | rphy->identify.device_type, buf); | |
509 | } | |
510 | ||
511 | static SAS_CLASS_DEVICE_ATTR(rphy, device_type, S_IRUGO, | |
512 | show_sas_rphy_device_type, NULL); | |
513 | ||
a0125641 CH |
514 | static ssize_t |
515 | show_sas_rphy_enclosure_identifier(struct class_device *cdev, char *buf) | |
516 | { | |
517 | struct sas_rphy *rphy = transport_class_to_rphy(cdev); | |
518 | struct sas_phy *phy = dev_to_phy(rphy->dev.parent); | |
519 | struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); | |
520 | struct sas_internal *i = to_sas_internal(shost->transportt); | |
521 | u64 identifier; | |
522 | int error; | |
523 | ||
524 | /* | |
525 | * Only devices behind an expander are supported, because the | |
526 | * enclosure identifier is a SMP feature. | |
527 | */ | |
528 | if (phy->local_attached) | |
529 | return -EINVAL; | |
530 | ||
531 | error = i->f->get_enclosure_identifier(rphy, &identifier); | |
532 | if (error) | |
533 | return error; | |
534 | return sprintf(buf, "0x%llx\n", (unsigned long long)identifier); | |
535 | } | |
536 | ||
537 | static SAS_CLASS_DEVICE_ATTR(rphy, enclosure_identifier, S_IRUGO, | |
538 | show_sas_rphy_enclosure_identifier, NULL); | |
539 | ||
540 | static ssize_t | |
541 | show_sas_rphy_bay_identifier(struct class_device *cdev, char *buf) | |
542 | { | |
543 | struct sas_rphy *rphy = transport_class_to_rphy(cdev); | |
544 | struct sas_phy *phy = dev_to_phy(rphy->dev.parent); | |
545 | struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); | |
546 | struct sas_internal *i = to_sas_internal(shost->transportt); | |
547 | int val; | |
548 | ||
549 | if (phy->local_attached) | |
550 | return -EINVAL; | |
551 | ||
552 | val = i->f->get_bay_identifier(rphy); | |
553 | if (val < 0) | |
554 | return val; | |
555 | return sprintf(buf, "%d\n", val); | |
556 | } | |
557 | ||
558 | static SAS_CLASS_DEVICE_ATTR(rphy, bay_identifier, S_IRUGO, | |
559 | show_sas_rphy_bay_identifier, NULL); | |
560 | ||
c7ebbbce CH |
561 | sas_rphy_protocol_attr(identify.initiator_port_protocols, |
562 | initiator_port_protocols); | |
563 | sas_rphy_protocol_attr(identify.target_port_protocols, target_port_protocols); | |
564 | sas_rphy_simple_attr(identify.sas_address, sas_address, "0x%016llx\n", | |
565 | unsigned long long); | |
566 | sas_rphy_simple_attr(identify.phy_identifier, phy_identifier, "%d\n", u8); | |
567 | ||
42ab0360 JB |
568 | /* only need 8 bytes of data plus header (4 or 8) */ |
569 | #define BUF_SIZE 64 | |
570 | ||
571 | int sas_read_port_mode_page(struct scsi_device *sdev) | |
572 | { | |
573 | char *buffer = kzalloc(BUF_SIZE, GFP_KERNEL), *msdata; | |
574 | struct sas_rphy *rphy = target_to_rphy(sdev->sdev_target); | |
575 | struct sas_end_device *rdev; | |
576 | struct scsi_mode_data mode_data; | |
577 | int res, error; | |
578 | ||
579 | BUG_ON(rphy->identify.device_type != SAS_END_DEVICE); | |
580 | ||
581 | rdev = rphy_to_end_device(rphy); | |
582 | ||
583 | if (!buffer) | |
584 | return -ENOMEM; | |
585 | ||
586 | res = scsi_mode_sense(sdev, 1, 0x19, buffer, BUF_SIZE, 30*HZ, 3, | |
587 | &mode_data, NULL); | |
588 | ||
589 | error = -EINVAL; | |
590 | if (!scsi_status_is_good(res)) | |
591 | goto out; | |
592 | ||
593 | msdata = buffer + mode_data.header_length + | |
594 | mode_data.block_descriptor_length; | |
595 | ||
596 | if (msdata - buffer > BUF_SIZE - 8) | |
597 | goto out; | |
598 | ||
599 | error = 0; | |
600 | ||
601 | rdev->ready_led_meaning = msdata[2] & 0x10 ? 1 : 0; | |
602 | rdev->I_T_nexus_loss_timeout = (msdata[4] << 8) + msdata[5]; | |
603 | rdev->initiator_response_timeout = (msdata[6] << 8) + msdata[7]; | |
604 | ||
605 | out: | |
606 | kfree(buffer); | |
607 | return error; | |
608 | } | |
609 | EXPORT_SYMBOL(sas_read_port_mode_page); | |
610 | ||
79cb1819 JB |
611 | static DECLARE_TRANSPORT_CLASS(sas_end_dev_class, |
612 | "sas_end_device", NULL, NULL, NULL); | |
613 | ||
42ab0360 JB |
614 | #define sas_end_dev_show_simple(field, name, format_string, cast) \ |
615 | static ssize_t \ | |
616 | show_sas_end_dev_##name(struct class_device *cdev, char *buf) \ | |
617 | { \ | |
618 | struct sas_rphy *rphy = transport_class_to_rphy(cdev); \ | |
619 | struct sas_end_device *rdev = rphy_to_end_device(rphy); \ | |
620 | \ | |
621 | return snprintf(buf, 20, format_string, cast rdev->field); \ | |
622 | } | |
623 | ||
624 | #define sas_end_dev_simple_attr(field, name, format_string, type) \ | |
625 | sas_end_dev_show_simple(field, name, format_string, (type)) \ | |
626 | static SAS_CLASS_DEVICE_ATTR(end_dev, name, S_IRUGO, \ | |
627 | show_sas_end_dev_##name, NULL) | |
628 | ||
629 | sas_end_dev_simple_attr(ready_led_meaning, ready_led_meaning, "%d\n", int); | |
630 | sas_end_dev_simple_attr(I_T_nexus_loss_timeout, I_T_nexus_loss_timeout, | |
631 | "%d\n", int); | |
632 | sas_end_dev_simple_attr(initiator_response_timeout, initiator_response_timeout, | |
633 | "%d\n", int); | |
634 | ||
79cb1819 JB |
635 | static DECLARE_TRANSPORT_CLASS(sas_expander_class, |
636 | "sas_expander", NULL, NULL, NULL); | |
637 | ||
638 | #define sas_expander_show_simple(field, name, format_string, cast) \ | |
639 | static ssize_t \ | |
640 | show_sas_expander_##name(struct class_device *cdev, char *buf) \ | |
641 | { \ | |
642 | struct sas_rphy *rphy = transport_class_to_rphy(cdev); \ | |
643 | struct sas_expander_device *edev = rphy_to_expander_device(rphy); \ | |
644 | \ | |
645 | return snprintf(buf, 20, format_string, cast edev->field); \ | |
646 | } | |
647 | ||
648 | #define sas_expander_simple_attr(field, name, format_string, type) \ | |
649 | sas_expander_show_simple(field, name, format_string, (type)) \ | |
650 | static SAS_CLASS_DEVICE_ATTR(expander, name, S_IRUGO, \ | |
651 | show_sas_expander_##name, NULL) | |
652 | ||
653 | sas_expander_simple_attr(vendor_id, vendor_id, "%s\n", char *); | |
654 | sas_expander_simple_attr(product_id, product_id, "%s\n", char *); | |
655 | sas_expander_simple_attr(product_rev, product_rev, "%s\n", char *); | |
656 | sas_expander_simple_attr(component_vendor_id, component_vendor_id, | |
657 | "%s\n", char *); | |
658 | sas_expander_simple_attr(component_id, component_id, "%u\n", unsigned int); | |
659 | sas_expander_simple_attr(component_revision_id, component_revision_id, "%u\n", | |
660 | unsigned int); | |
661 | sas_expander_simple_attr(level, level, "%d\n", int); | |
42ab0360 | 662 | |
c7ebbbce | 663 | static DECLARE_TRANSPORT_CLASS(sas_rphy_class, |
2f8600df | 664 | "sas_device", NULL, NULL, NULL); |
c7ebbbce CH |
665 | |
666 | static int sas_rphy_match(struct attribute_container *cont, struct device *dev) | |
667 | { | |
668 | struct Scsi_Host *shost; | |
669 | struct sas_internal *i; | |
670 | ||
671 | if (!scsi_is_sas_rphy(dev)) | |
672 | return 0; | |
673 | shost = dev_to_shost(dev->parent->parent); | |
674 | ||
675 | if (!shost->transportt) | |
676 | return 0; | |
677 | if (shost->transportt->host_attrs.ac.class != | |
678 | &sas_host_class.class) | |
679 | return 0; | |
680 | ||
681 | i = to_sas_internal(shost->transportt); | |
682 | return &i->rphy_attr_cont.ac == cont; | |
683 | } | |
684 | ||
42ab0360 JB |
685 | static int sas_end_dev_match(struct attribute_container *cont, |
686 | struct device *dev) | |
687 | { | |
688 | struct Scsi_Host *shost; | |
689 | struct sas_internal *i; | |
690 | struct sas_rphy *rphy; | |
691 | ||
692 | if (!scsi_is_sas_rphy(dev)) | |
693 | return 0; | |
694 | shost = dev_to_shost(dev->parent->parent); | |
695 | rphy = dev_to_rphy(dev); | |
696 | ||
697 | if (!shost->transportt) | |
698 | return 0; | |
699 | if (shost->transportt->host_attrs.ac.class != | |
700 | &sas_host_class.class) | |
701 | return 0; | |
702 | ||
703 | i = to_sas_internal(shost->transportt); | |
704 | return &i->end_dev_attr_cont.ac == cont && | |
2f8600df | 705 | rphy->identify.device_type == SAS_END_DEVICE; |
42ab0360 JB |
706 | } |
707 | ||
79cb1819 JB |
708 | static int sas_expander_match(struct attribute_container *cont, |
709 | struct device *dev) | |
710 | { | |
711 | struct Scsi_Host *shost; | |
712 | struct sas_internal *i; | |
713 | struct sas_rphy *rphy; | |
714 | ||
715 | if (!scsi_is_sas_rphy(dev)) | |
716 | return 0; | |
717 | shost = dev_to_shost(dev->parent->parent); | |
718 | rphy = dev_to_rphy(dev); | |
719 | ||
720 | if (!shost->transportt) | |
721 | return 0; | |
722 | if (shost->transportt->host_attrs.ac.class != | |
723 | &sas_host_class.class) | |
724 | return 0; | |
725 | ||
726 | i = to_sas_internal(shost->transportt); | |
727 | return &i->expander_attr_cont.ac == cont && | |
728 | (rphy->identify.device_type == SAS_EDGE_EXPANDER_DEVICE || | |
2f8600df | 729 | rphy->identify.device_type == SAS_FANOUT_EXPANDER_DEVICE); |
79cb1819 JB |
730 | } |
731 | ||
2f8600df | 732 | static void sas_expander_release(struct device *dev) |
c7ebbbce CH |
733 | { |
734 | struct sas_rphy *rphy = dev_to_rphy(dev); | |
2f8600df | 735 | struct sas_expander_device *edev = rphy_to_expander_device(rphy); |
c7ebbbce CH |
736 | |
737 | put_device(dev->parent); | |
2f8600df | 738 | kfree(edev); |
c7ebbbce CH |
739 | } |
740 | ||
2f8600df | 741 | static void sas_end_device_release(struct device *dev) |
c7ebbbce | 742 | { |
2f8600df JB |
743 | struct sas_rphy *rphy = dev_to_rphy(dev); |
744 | struct sas_end_device *edev = rphy_to_end_device(rphy); | |
c7ebbbce | 745 | |
2f8600df JB |
746 | put_device(dev->parent); |
747 | kfree(edev); | |
c7ebbbce | 748 | } |
c7ebbbce | 749 | |
42ab0360 JB |
750 | /** |
751 | * sas_end_device_alloc - allocate an rphy for an end device | |
752 | * | |
753 | * Allocates an SAS remote PHY structure, connected to @parent. | |
754 | * | |
755 | * Returns: | |
756 | * SAS PHY allocated or %NULL if the allocation failed. | |
757 | */ | |
758 | struct sas_rphy *sas_end_device_alloc(struct sas_phy *parent) | |
759 | { | |
760 | struct Scsi_Host *shost = dev_to_shost(&parent->dev); | |
761 | struct sas_end_device *rdev; | |
762 | ||
763 | rdev = kzalloc(sizeof(*rdev), GFP_KERNEL); | |
764 | if (!rdev) { | |
42ab0360 JB |
765 | return NULL; |
766 | } | |
767 | ||
768 | device_initialize(&rdev->rphy.dev); | |
769 | rdev->rphy.dev.parent = get_device(&parent->dev); | |
2f8600df JB |
770 | rdev->rphy.dev.release = sas_end_device_release; |
771 | sprintf(rdev->rphy.dev.bus_id, "end_device-%d:%d-%d", | |
42ab0360 JB |
772 | shost->host_no, parent->port_identifier, parent->number); |
773 | rdev->rphy.identify.device_type = SAS_END_DEVICE; | |
42ab0360 JB |
774 | transport_setup_device(&rdev->rphy.dev); |
775 | ||
776 | return &rdev->rphy; | |
777 | } | |
778 | EXPORT_SYMBOL(sas_end_device_alloc); | |
779 | ||
79cb1819 JB |
780 | /** |
781 | * sas_expander_alloc - allocate an rphy for an end device | |
782 | * | |
783 | * Allocates an SAS remote PHY structure, connected to @parent. | |
784 | * | |
785 | * Returns: | |
786 | * SAS PHY allocated or %NULL if the allocation failed. | |
787 | */ | |
788 | struct sas_rphy *sas_expander_alloc(struct sas_phy *parent, | |
789 | enum sas_device_type type) | |
790 | { | |
791 | struct Scsi_Host *shost = dev_to_shost(&parent->dev); | |
792 | struct sas_expander_device *rdev; | |
793 | struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); | |
794 | ||
795 | BUG_ON(type != SAS_EDGE_EXPANDER_DEVICE && | |
796 | type != SAS_FANOUT_EXPANDER_DEVICE); | |
797 | ||
798 | rdev = kzalloc(sizeof(*rdev), GFP_KERNEL); | |
799 | if (!rdev) { | |
79cb1819 JB |
800 | return NULL; |
801 | } | |
802 | ||
803 | device_initialize(&rdev->rphy.dev); | |
804 | rdev->rphy.dev.parent = get_device(&parent->dev); | |
2f8600df | 805 | rdev->rphy.dev.release = sas_expander_release; |
79cb1819 JB |
806 | mutex_lock(&sas_host->lock); |
807 | rdev->rphy.scsi_target_id = sas_host->next_expander_id++; | |
808 | mutex_unlock(&sas_host->lock); | |
809 | sprintf(rdev->rphy.dev.bus_id, "expander-%d:%d", | |
810 | shost->host_no, rdev->rphy.scsi_target_id); | |
811 | rdev->rphy.identify.device_type = type; | |
79cb1819 JB |
812 | transport_setup_device(&rdev->rphy.dev); |
813 | ||
814 | return &rdev->rphy; | |
815 | } | |
816 | EXPORT_SYMBOL(sas_expander_alloc); | |
42ab0360 | 817 | |
c7ebbbce CH |
818 | /** |
819 | * sas_rphy_add -- add a SAS remote PHY to the device hierachy | |
820 | * @rphy: The remote PHY to be added | |
821 | * | |
822 | * Publishes a SAS remote PHY to the rest of the system. | |
823 | */ | |
824 | int sas_rphy_add(struct sas_rphy *rphy) | |
825 | { | |
826 | struct sas_phy *parent = dev_to_phy(rphy->dev.parent); | |
827 | struct Scsi_Host *shost = dev_to_shost(parent->dev.parent); | |
828 | struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); | |
829 | struct sas_identify *identify = &rphy->identify; | |
830 | int error; | |
831 | ||
832 | if (parent->rphy) | |
833 | return -ENXIO; | |
834 | parent->rphy = rphy; | |
835 | ||
836 | error = device_add(&rphy->dev); | |
837 | if (error) | |
838 | return error; | |
839 | transport_add_device(&rphy->dev); | |
840 | transport_configure_device(&rphy->dev); | |
841 | ||
e02f3f59 | 842 | mutex_lock(&sas_host->lock); |
c7ebbbce CH |
843 | list_add_tail(&rphy->list, &sas_host->rphy_list); |
844 | if (identify->device_type == SAS_END_DEVICE && | |
845 | (identify->target_port_protocols & | |
846 | (SAS_PROTOCOL_SSP|SAS_PROTOCOL_STP|SAS_PROTOCOL_SATA))) | |
847 | rphy->scsi_target_id = sas_host->next_target_id++; | |
7676f83a JB |
848 | else if (identify->device_type == SAS_END_DEVICE) |
849 | rphy->scsi_target_id = -1; | |
e02f3f59 | 850 | mutex_unlock(&sas_host->lock); |
c7ebbbce | 851 | |
79cb1819 JB |
852 | if (identify->device_type == SAS_END_DEVICE && |
853 | rphy->scsi_target_id != -1) { | |
e6bc863c | 854 | scsi_scan_target(&rphy->dev, parent->port_identifier, |
c7ebbbce CH |
855 | rphy->scsi_target_id, ~0, 0); |
856 | } | |
857 | ||
858 | return 0; | |
859 | } | |
860 | EXPORT_SYMBOL(sas_rphy_add); | |
861 | ||
862 | /** | |
863 | * sas_rphy_free -- free a SAS remote PHY | |
864 | * @rphy SAS remote PHY to free | |
865 | * | |
866 | * Frees the specified SAS remote PHY. | |
867 | * | |
868 | * Note: | |
869 | * This function must only be called on a remote | |
870 | * PHY that has not sucessfully been added using | |
871 | * sas_rphy_add(). | |
872 | */ | |
873 | void sas_rphy_free(struct sas_rphy *rphy) | |
874 | { | |
92aab646 | 875 | struct device *dev = &rphy->dev; |
c7ebbbce CH |
876 | struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent->parent); |
877 | struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); | |
878 | ||
e02f3f59 | 879 | mutex_lock(&sas_host->lock); |
c7ebbbce | 880 | list_del(&rphy->list); |
e02f3f59 | 881 | mutex_unlock(&sas_host->lock); |
c7ebbbce | 882 | |
92aab646 | 883 | transport_destroy_device(dev); |
2f8600df | 884 | |
92aab646 | 885 | put_device(dev); |
c7ebbbce CH |
886 | } |
887 | EXPORT_SYMBOL(sas_rphy_free); | |
888 | ||
889 | /** | |
890 | * sas_rphy_delete -- remove SAS remote PHY | |
891 | * @rphy: SAS remote PHY to remove | |
892 | * | |
893 | * Removes the specified SAS remote PHY. | |
894 | */ | |
895 | void | |
896 | sas_rphy_delete(struct sas_rphy *rphy) | |
897 | { | |
898 | struct device *dev = &rphy->dev; | |
899 | struct sas_phy *parent = dev_to_phy(dev->parent); | |
900 | struct Scsi_Host *shost = dev_to_shost(parent->dev.parent); | |
901 | struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); | |
902 | ||
d4054239 CH |
903 | switch (rphy->identify.device_type) { |
904 | case SAS_END_DEVICE: | |
905 | scsi_remove_target(dev); | |
906 | break; | |
907 | case SAS_EDGE_EXPANDER_DEVICE: | |
908 | case SAS_FANOUT_EXPANDER_DEVICE: | |
909 | device_for_each_child(dev, NULL, do_sas_phy_delete); | |
910 | break; | |
911 | default: | |
912 | break; | |
913 | } | |
c7ebbbce | 914 | |
fe8b2304 CH |
915 | transport_remove_device(dev); |
916 | device_del(dev); | |
917 | transport_destroy_device(dev); | |
c7ebbbce | 918 | |
e02f3f59 | 919 | mutex_lock(&sas_host->lock); |
c7ebbbce | 920 | list_del(&rphy->list); |
e02f3f59 | 921 | mutex_unlock(&sas_host->lock); |
c7ebbbce | 922 | |
33b114e9 CH |
923 | parent->rphy = NULL; |
924 | ||
92aab646 | 925 | put_device(dev); |
c7ebbbce CH |
926 | } |
927 | EXPORT_SYMBOL(sas_rphy_delete); | |
928 | ||
929 | /** | |
930 | * scsi_is_sas_rphy -- check if a struct device represents a SAS remote PHY | |
931 | * @dev: device to check | |
932 | * | |
933 | * Returns: | |
934 | * %1 if the device represents a SAS remote PHY, %0 else | |
935 | */ | |
936 | int scsi_is_sas_rphy(const struct device *dev) | |
937 | { | |
2f8600df JB |
938 | return dev->release == sas_end_device_release || |
939 | dev->release == sas_expander_release; | |
c7ebbbce CH |
940 | } |
941 | EXPORT_SYMBOL(scsi_is_sas_rphy); | |
942 | ||
943 | ||
944 | /* | |
945 | * SCSI scan helper | |
946 | */ | |
947 | ||
e02f3f59 CH |
948 | static int sas_user_scan(struct Scsi_Host *shost, uint channel, |
949 | uint id, uint lun) | |
c7ebbbce CH |
950 | { |
951 | struct sas_host_attrs *sas_host = to_sas_host_attrs(shost); | |
952 | struct sas_rphy *rphy; | |
c7ebbbce | 953 | |
e02f3f59 | 954 | mutex_lock(&sas_host->lock); |
c7ebbbce CH |
955 | list_for_each_entry(rphy, &sas_host->rphy_list, list) { |
956 | struct sas_phy *parent = dev_to_phy(rphy->dev.parent); | |
e02f3f59 CH |
957 | |
958 | if (rphy->scsi_target_id == -1) | |
959 | continue; | |
960 | ||
e6bc863c | 961 | if ((channel == SCAN_WILD_CARD || channel == parent->port_identifier) && |
e02f3f59 | 962 | (id == SCAN_WILD_CARD || id == rphy->scsi_target_id)) { |
e6bc863c | 963 | scsi_scan_target(&rphy->dev, parent->port_identifier, |
e02f3f59 CH |
964 | rphy->scsi_target_id, lun, 1); |
965 | } | |
c7ebbbce | 966 | } |
e02f3f59 | 967 | mutex_unlock(&sas_host->lock); |
c7ebbbce | 968 | |
e02f3f59 | 969 | return 0; |
c7ebbbce CH |
970 | } |
971 | ||
972 | ||
973 | /* | |
974 | * Setup / Teardown code | |
975 | */ | |
976 | ||
42ab0360 JB |
977 | #define SETUP_TEMPLATE(attrb, field, perm, test) \ |
978 | i->private_##attrb[count] = class_device_attr_##field; \ | |
979 | i->private_##attrb[count].attr.mode = perm; \ | |
980 | i->private_##attrb[count].store = NULL; \ | |
981 | i->attrb[count] = &i->private_##attrb[count]; \ | |
982 | if (test) \ | |
983 | count++ | |
984 | ||
985 | ||
986 | #define SETUP_RPORT_ATTRIBUTE(field) \ | |
987 | SETUP_TEMPLATE(rphy_attrs, field, S_IRUGO, 1) | |
c7ebbbce | 988 | |
dd9fbb52 | 989 | #define SETUP_OPTIONAL_RPORT_ATTRIBUTE(field, func) \ |
42ab0360 | 990 | SETUP_TEMPLATE(rphy_attrs, field, S_IRUGO, i->f->func) |
dd9fbb52 | 991 | |
c7ebbbce | 992 | #define SETUP_PORT_ATTRIBUTE(field) \ |
42ab0360 | 993 | SETUP_TEMPLATE(phy_attrs, field, S_IRUGO, 1) |
c7ebbbce | 994 | |
dd9fbb52 | 995 | #define SETUP_OPTIONAL_PORT_ATTRIBUTE(field, func) \ |
42ab0360 | 996 | SETUP_TEMPLATE(phy_attrs, field, S_IRUGO, i->f->func) |
dd9fbb52 | 997 | |
07ba3a95 | 998 | #define SETUP_PORT_ATTRIBUTE_WRONLY(field) \ |
42ab0360 | 999 | SETUP_TEMPLATE(phy_attrs, field, S_IWUGO, 1) |
07ba3a95 | 1000 | |
dd9fbb52 | 1001 | #define SETUP_OPTIONAL_PORT_ATTRIBUTE_WRONLY(field, func) \ |
42ab0360 | 1002 | SETUP_TEMPLATE(phy_attrs, field, S_IWUGO, i->f->func) |
dd9fbb52 | 1003 | |
42ab0360 JB |
1004 | #define SETUP_END_DEV_ATTRIBUTE(field) \ |
1005 | SETUP_TEMPLATE(end_dev_attrs, field, S_IRUGO, 1) | |
c7ebbbce | 1006 | |
79cb1819 JB |
1007 | #define SETUP_EXPANDER_ATTRIBUTE(field) \ |
1008 | SETUP_TEMPLATE(expander_attrs, expander_##field, S_IRUGO, 1) | |
1009 | ||
c7ebbbce CH |
1010 | /** |
1011 | * sas_attach_transport -- instantiate SAS transport template | |
1012 | * @ft: SAS transport class function template | |
1013 | */ | |
1014 | struct scsi_transport_template * | |
1015 | sas_attach_transport(struct sas_function_template *ft) | |
1016 | { | |
1017 | struct sas_internal *i; | |
1018 | int count; | |
1019 | ||
24669f75 | 1020 | i = kzalloc(sizeof(struct sas_internal), GFP_KERNEL); |
c7ebbbce CH |
1021 | if (!i) |
1022 | return NULL; | |
c7ebbbce | 1023 | |
e02f3f59 | 1024 | i->t.user_scan = sas_user_scan; |
c7ebbbce CH |
1025 | |
1026 | i->t.host_attrs.ac.attrs = &i->host_attrs[0]; | |
1027 | i->t.host_attrs.ac.class = &sas_host_class.class; | |
1028 | i->t.host_attrs.ac.match = sas_host_match; | |
1029 | transport_container_register(&i->t.host_attrs); | |
1030 | i->t.host_size = sizeof(struct sas_host_attrs); | |
1031 | ||
1032 | i->phy_attr_cont.ac.class = &sas_phy_class.class; | |
1033 | i->phy_attr_cont.ac.attrs = &i->phy_attrs[0]; | |
1034 | i->phy_attr_cont.ac.match = sas_phy_match; | |
1035 | transport_container_register(&i->phy_attr_cont); | |
1036 | ||
1037 | i->rphy_attr_cont.ac.class = &sas_rphy_class.class; | |
1038 | i->rphy_attr_cont.ac.attrs = &i->rphy_attrs[0]; | |
1039 | i->rphy_attr_cont.ac.match = sas_rphy_match; | |
1040 | transport_container_register(&i->rphy_attr_cont); | |
1041 | ||
42ab0360 JB |
1042 | i->end_dev_attr_cont.ac.class = &sas_end_dev_class.class; |
1043 | i->end_dev_attr_cont.ac.attrs = &i->end_dev_attrs[0]; | |
1044 | i->end_dev_attr_cont.ac.match = sas_end_dev_match; | |
1045 | transport_container_register(&i->end_dev_attr_cont); | |
1046 | ||
79cb1819 JB |
1047 | i->expander_attr_cont.ac.class = &sas_expander_class.class; |
1048 | i->expander_attr_cont.ac.attrs = &i->expander_attrs[0]; | |
1049 | i->expander_attr_cont.ac.match = sas_expander_match; | |
1050 | transport_container_register(&i->expander_attr_cont); | |
1051 | ||
c7ebbbce CH |
1052 | i->f = ft; |
1053 | ||
1054 | count = 0; | |
1055 | i->host_attrs[count] = NULL; | |
1056 | ||
1057 | count = 0; | |
1058 | SETUP_PORT_ATTRIBUTE(initiator_port_protocols); | |
1059 | SETUP_PORT_ATTRIBUTE(target_port_protocols); | |
1060 | SETUP_PORT_ATTRIBUTE(device_type); | |
1061 | SETUP_PORT_ATTRIBUTE(sas_address); | |
1062 | SETUP_PORT_ATTRIBUTE(phy_identifier); | |
1063 | SETUP_PORT_ATTRIBUTE(port_identifier); | |
1064 | SETUP_PORT_ATTRIBUTE(negotiated_linkrate); | |
1065 | SETUP_PORT_ATTRIBUTE(minimum_linkrate_hw); | |
1066 | SETUP_PORT_ATTRIBUTE(minimum_linkrate); | |
1067 | SETUP_PORT_ATTRIBUTE(maximum_linkrate_hw); | |
1068 | SETUP_PORT_ATTRIBUTE(maximum_linkrate); | |
c3ee74c4 CH |
1069 | |
1070 | SETUP_PORT_ATTRIBUTE(invalid_dword_count); | |
1071 | SETUP_PORT_ATTRIBUTE(running_disparity_error_count); | |
1072 | SETUP_PORT_ATTRIBUTE(loss_of_dword_sync_count); | |
1073 | SETUP_PORT_ATTRIBUTE(phy_reset_problem_count); | |
dd9fbb52 JB |
1074 | SETUP_OPTIONAL_PORT_ATTRIBUTE_WRONLY(link_reset, phy_reset); |
1075 | SETUP_OPTIONAL_PORT_ATTRIBUTE_WRONLY(hard_reset, phy_reset); | |
c7ebbbce CH |
1076 | i->phy_attrs[count] = NULL; |
1077 | ||
1078 | count = 0; | |
1079 | SETUP_RPORT_ATTRIBUTE(rphy_initiator_port_protocols); | |
1080 | SETUP_RPORT_ATTRIBUTE(rphy_target_port_protocols); | |
1081 | SETUP_RPORT_ATTRIBUTE(rphy_device_type); | |
1082 | SETUP_RPORT_ATTRIBUTE(rphy_sas_address); | |
1083 | SETUP_RPORT_ATTRIBUTE(rphy_phy_identifier); | |
dd9fbb52 JB |
1084 | SETUP_OPTIONAL_RPORT_ATTRIBUTE(rphy_enclosure_identifier, |
1085 | get_enclosure_identifier); | |
1086 | SETUP_OPTIONAL_RPORT_ATTRIBUTE(rphy_bay_identifier, | |
1087 | get_bay_identifier); | |
c7ebbbce CH |
1088 | i->rphy_attrs[count] = NULL; |
1089 | ||
42ab0360 JB |
1090 | count = 0; |
1091 | SETUP_END_DEV_ATTRIBUTE(end_dev_ready_led_meaning); | |
1092 | SETUP_END_DEV_ATTRIBUTE(end_dev_I_T_nexus_loss_timeout); | |
1093 | SETUP_END_DEV_ATTRIBUTE(end_dev_initiator_response_timeout); | |
1094 | i->end_dev_attrs[count] = NULL; | |
1095 | ||
79cb1819 JB |
1096 | count = 0; |
1097 | SETUP_EXPANDER_ATTRIBUTE(vendor_id); | |
1098 | SETUP_EXPANDER_ATTRIBUTE(product_id); | |
1099 | SETUP_EXPANDER_ATTRIBUTE(product_rev); | |
1100 | SETUP_EXPANDER_ATTRIBUTE(component_vendor_id); | |
1101 | SETUP_EXPANDER_ATTRIBUTE(component_id); | |
1102 | SETUP_EXPANDER_ATTRIBUTE(component_revision_id); | |
1103 | SETUP_EXPANDER_ATTRIBUTE(level); | |
1104 | i->expander_attrs[count] = NULL; | |
1105 | ||
c7ebbbce CH |
1106 | return &i->t; |
1107 | } | |
1108 | EXPORT_SYMBOL(sas_attach_transport); | |
1109 | ||
1110 | /** | |
1111 | * sas_release_transport -- release SAS transport template instance | |
1112 | * @t: transport template instance | |
1113 | */ | |
1114 | void sas_release_transport(struct scsi_transport_template *t) | |
1115 | { | |
1116 | struct sas_internal *i = to_sas_internal(t); | |
1117 | ||
1118 | transport_container_unregister(&i->t.host_attrs); | |
1119 | transport_container_unregister(&i->phy_attr_cont); | |
1120 | transport_container_unregister(&i->rphy_attr_cont); | |
db82f841 | 1121 | transport_container_unregister(&i->end_dev_attr_cont); |
79cb1819 | 1122 | transport_container_unregister(&i->expander_attr_cont); |
c7ebbbce CH |
1123 | |
1124 | kfree(i); | |
1125 | } | |
1126 | EXPORT_SYMBOL(sas_release_transport); | |
1127 | ||
1128 | static __init int sas_transport_init(void) | |
1129 | { | |
1130 | int error; | |
1131 | ||
1132 | error = transport_class_register(&sas_host_class); | |
1133 | if (error) | |
1134 | goto out; | |
1135 | error = transport_class_register(&sas_phy_class); | |
1136 | if (error) | |
1137 | goto out_unregister_transport; | |
1138 | error = transport_class_register(&sas_rphy_class); | |
1139 | if (error) | |
1140 | goto out_unregister_phy; | |
42ab0360 JB |
1141 | error = transport_class_register(&sas_end_dev_class); |
1142 | if (error) | |
1143 | goto out_unregister_rphy; | |
79cb1819 JB |
1144 | error = transport_class_register(&sas_expander_class); |
1145 | if (error) | |
1146 | goto out_unregister_end_dev; | |
c7ebbbce CH |
1147 | |
1148 | return 0; | |
1149 | ||
79cb1819 JB |
1150 | out_unregister_end_dev: |
1151 | transport_class_unregister(&sas_end_dev_class); | |
42ab0360 JB |
1152 | out_unregister_rphy: |
1153 | transport_class_unregister(&sas_rphy_class); | |
c7ebbbce CH |
1154 | out_unregister_phy: |
1155 | transport_class_unregister(&sas_phy_class); | |
1156 | out_unregister_transport: | |
1157 | transport_class_unregister(&sas_host_class); | |
1158 | out: | |
1159 | return error; | |
1160 | ||
1161 | } | |
1162 | ||
1163 | static void __exit sas_transport_exit(void) | |
1164 | { | |
1165 | transport_class_unregister(&sas_host_class); | |
1166 | transport_class_unregister(&sas_phy_class); | |
1167 | transport_class_unregister(&sas_rphy_class); | |
42ab0360 | 1168 | transport_class_unregister(&sas_end_dev_class); |
79cb1819 | 1169 | transport_class_unregister(&sas_expander_class); |
c7ebbbce CH |
1170 | } |
1171 | ||
1172 | MODULE_AUTHOR("Christoph Hellwig"); | |
1173 | MODULE_DESCRIPTION("SAS Transphy Attributes"); | |
1174 | MODULE_LICENSE("GPL"); | |
1175 | ||
1176 | module_init(sas_transport_init); | |
1177 | module_exit(sas_transport_exit); |