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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2004 Topspin Communications. All rights reserved. | |
2a1d9b7f | 3 | * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. |
1da177e4 LT |
4 | * |
5 | * This software is available to you under a choice of one of two | |
6 | * licenses. You may choose to be licensed under the terms of the GNU | |
7 | * General Public License (GPL) Version 2, available from the file | |
8 | * COPYING in the main directory of this source tree, or the | |
9 | * OpenIB.org BSD license below: | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or | |
12 | * without modification, are permitted provided that the following | |
13 | * conditions are met: | |
14 | * | |
15 | * - Redistributions of source code must retain the above | |
16 | * copyright notice, this list of conditions and the following | |
17 | * disclaimer. | |
18 | * | |
19 | * - Redistributions in binary form must reproduce the above | |
20 | * copyright notice, this list of conditions and the following | |
21 | * disclaimer in the documentation and/or other materials | |
22 | * provided with the distribution. | |
23 | * | |
24 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
25 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
26 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
27 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
28 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
29 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
30 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
31 | * SOFTWARE. | |
32 | * | |
33 | * $Id: device.c 1349 2004-12-16 21:09:43Z roland $ | |
34 | */ | |
35 | ||
36 | #include <linux/module.h> | |
37 | #include <linux/string.h> | |
38 | #include <linux/errno.h> | |
39 | #include <linux/slab.h> | |
40 | #include <linux/init.h> | |
95ed644f | 41 | #include <linux/mutex.h> |
1da177e4 LT |
42 | |
43 | #include "core_priv.h" | |
44 | ||
45 | MODULE_AUTHOR("Roland Dreier"); | |
46 | MODULE_DESCRIPTION("core kernel InfiniBand API"); | |
47 | MODULE_LICENSE("Dual BSD/GPL"); | |
48 | ||
49 | struct ib_client_data { | |
50 | struct list_head list; | |
51 | struct ib_client *client; | |
52 | void * data; | |
53 | }; | |
54 | ||
55 | static LIST_HEAD(device_list); | |
56 | static LIST_HEAD(client_list); | |
57 | ||
58 | /* | |
95ed644f | 59 | * device_mutex protects access to both device_list and client_list. |
1da177e4 LT |
60 | * There's no real point to using multiple locks or something fancier |
61 | * like an rwsem: we always access both lists, and we're always | |
62 | * modifying one list or the other list. In any case this is not a | |
63 | * hot path so there's no point in trying to optimize. | |
64 | */ | |
95ed644f | 65 | static DEFINE_MUTEX(device_mutex); |
1da177e4 LT |
66 | |
67 | static int ib_device_check_mandatory(struct ib_device *device) | |
68 | { | |
69 | #define IB_MANDATORY_FUNC(x) { offsetof(struct ib_device, x), #x } | |
70 | static const struct { | |
71 | size_t offset; | |
72 | char *name; | |
73 | } mandatory_table[] = { | |
74 | IB_MANDATORY_FUNC(query_device), | |
75 | IB_MANDATORY_FUNC(query_port), | |
76 | IB_MANDATORY_FUNC(query_pkey), | |
77 | IB_MANDATORY_FUNC(query_gid), | |
78 | IB_MANDATORY_FUNC(alloc_pd), | |
79 | IB_MANDATORY_FUNC(dealloc_pd), | |
80 | IB_MANDATORY_FUNC(create_ah), | |
81 | IB_MANDATORY_FUNC(destroy_ah), | |
82 | IB_MANDATORY_FUNC(create_qp), | |
83 | IB_MANDATORY_FUNC(modify_qp), | |
84 | IB_MANDATORY_FUNC(destroy_qp), | |
85 | IB_MANDATORY_FUNC(post_send), | |
86 | IB_MANDATORY_FUNC(post_recv), | |
87 | IB_MANDATORY_FUNC(create_cq), | |
88 | IB_MANDATORY_FUNC(destroy_cq), | |
89 | IB_MANDATORY_FUNC(poll_cq), | |
90 | IB_MANDATORY_FUNC(req_notify_cq), | |
91 | IB_MANDATORY_FUNC(get_dma_mr), | |
92 | IB_MANDATORY_FUNC(dereg_mr) | |
93 | }; | |
94 | int i; | |
95 | ||
96 | for (i = 0; i < sizeof mandatory_table / sizeof mandatory_table[0]; ++i) { | |
97 | if (!*(void **) ((void *) device + mandatory_table[i].offset)) { | |
98 | printk(KERN_WARNING "Device %s is missing mandatory function %s\n", | |
99 | device->name, mandatory_table[i].name); | |
100 | return -EINVAL; | |
101 | } | |
102 | } | |
103 | ||
104 | return 0; | |
105 | } | |
106 | ||
107 | static struct ib_device *__ib_device_get_by_name(const char *name) | |
108 | { | |
109 | struct ib_device *device; | |
110 | ||
111 | list_for_each_entry(device, &device_list, core_list) | |
112 | if (!strncmp(name, device->name, IB_DEVICE_NAME_MAX)) | |
113 | return device; | |
114 | ||
115 | return NULL; | |
116 | } | |
117 | ||
118 | ||
119 | static int alloc_name(char *name) | |
120 | { | |
121 | long *inuse; | |
122 | char buf[IB_DEVICE_NAME_MAX]; | |
123 | struct ib_device *device; | |
124 | int i; | |
125 | ||
126 | inuse = (long *) get_zeroed_page(GFP_KERNEL); | |
127 | if (!inuse) | |
128 | return -ENOMEM; | |
129 | ||
130 | list_for_each_entry(device, &device_list, core_list) { | |
131 | if (!sscanf(device->name, name, &i)) | |
132 | continue; | |
133 | if (i < 0 || i >= PAGE_SIZE * 8) | |
134 | continue; | |
135 | snprintf(buf, sizeof buf, name, i); | |
136 | if (!strncmp(buf, device->name, IB_DEVICE_NAME_MAX)) | |
137 | set_bit(i, inuse); | |
138 | } | |
139 | ||
140 | i = find_first_zero_bit(inuse, PAGE_SIZE * 8); | |
141 | free_page((unsigned long) inuse); | |
142 | snprintf(buf, sizeof buf, name, i); | |
143 | ||
144 | if (__ib_device_get_by_name(buf)) | |
145 | return -ENFILE; | |
146 | ||
147 | strlcpy(name, buf, IB_DEVICE_NAME_MAX); | |
148 | return 0; | |
149 | } | |
150 | ||
151 | /** | |
152 | * ib_alloc_device - allocate an IB device struct | |
153 | * @size:size of structure to allocate | |
154 | * | |
155 | * Low-level drivers should use ib_alloc_device() to allocate &struct | |
156 | * ib_device. @size is the size of the structure to be allocated, | |
157 | * including any private data used by the low-level driver. | |
158 | * ib_dealloc_device() must be used to free structures allocated with | |
159 | * ib_alloc_device(). | |
160 | */ | |
161 | struct ib_device *ib_alloc_device(size_t size) | |
162 | { | |
1da177e4 LT |
163 | BUG_ON(size < sizeof (struct ib_device)); |
164 | ||
de6eb66b | 165 | return kzalloc(size, GFP_KERNEL); |
1da177e4 LT |
166 | } |
167 | EXPORT_SYMBOL(ib_alloc_device); | |
168 | ||
169 | /** | |
170 | * ib_dealloc_device - free an IB device struct | |
171 | * @device:structure to free | |
172 | * | |
173 | * Free a structure allocated with ib_alloc_device(). | |
174 | */ | |
175 | void ib_dealloc_device(struct ib_device *device) | |
176 | { | |
177 | if (device->reg_state == IB_DEV_UNINITIALIZED) { | |
178 | kfree(device); | |
179 | return; | |
180 | } | |
181 | ||
182 | BUG_ON(device->reg_state != IB_DEV_UNREGISTERED); | |
183 | ||
184 | ib_device_unregister_sysfs(device); | |
185 | } | |
186 | EXPORT_SYMBOL(ib_dealloc_device); | |
187 | ||
188 | static int add_client_context(struct ib_device *device, struct ib_client *client) | |
189 | { | |
190 | struct ib_client_data *context; | |
191 | unsigned long flags; | |
192 | ||
193 | context = kmalloc(sizeof *context, GFP_KERNEL); | |
194 | if (!context) { | |
195 | printk(KERN_WARNING "Couldn't allocate client context for %s/%s\n", | |
196 | device->name, client->name); | |
197 | return -ENOMEM; | |
198 | } | |
199 | ||
200 | context->client = client; | |
201 | context->data = NULL; | |
202 | ||
203 | spin_lock_irqsave(&device->client_data_lock, flags); | |
204 | list_add(&context->list, &device->client_data_list); | |
205 | spin_unlock_irqrestore(&device->client_data_lock, flags); | |
206 | ||
207 | return 0; | |
208 | } | |
209 | ||
210 | /** | |
211 | * ib_register_device - Register an IB device with IB core | |
212 | * @device:Device to register | |
213 | * | |
214 | * Low-level drivers use ib_register_device() to register their | |
215 | * devices with the IB core. All registered clients will receive a | |
216 | * callback for each device that is added. @device must be allocated | |
217 | * with ib_alloc_device(). | |
218 | */ | |
219 | int ib_register_device(struct ib_device *device) | |
220 | { | |
221 | int ret; | |
222 | ||
95ed644f | 223 | mutex_lock(&device_mutex); |
1da177e4 LT |
224 | |
225 | if (strchr(device->name, '%')) { | |
226 | ret = alloc_name(device->name); | |
227 | if (ret) | |
228 | goto out; | |
229 | } | |
230 | ||
231 | if (ib_device_check_mandatory(device)) { | |
232 | ret = -EINVAL; | |
233 | goto out; | |
234 | } | |
235 | ||
236 | INIT_LIST_HEAD(&device->event_handler_list); | |
237 | INIT_LIST_HEAD(&device->client_data_list); | |
238 | spin_lock_init(&device->event_handler_lock); | |
239 | spin_lock_init(&device->client_data_lock); | |
240 | ||
241 | ret = ib_device_register_sysfs(device); | |
242 | if (ret) { | |
243 | printk(KERN_WARNING "Couldn't register device %s with driver model\n", | |
244 | device->name); | |
245 | goto out; | |
246 | } | |
247 | ||
248 | list_add_tail(&device->core_list, &device_list); | |
249 | ||
250 | device->reg_state = IB_DEV_REGISTERED; | |
251 | ||
252 | { | |
253 | struct ib_client *client; | |
254 | ||
255 | list_for_each_entry(client, &client_list, list) | |
256 | if (client->add && !add_client_context(device, client)) | |
257 | client->add(device); | |
258 | } | |
259 | ||
260 | out: | |
95ed644f | 261 | mutex_unlock(&device_mutex); |
1da177e4 LT |
262 | return ret; |
263 | } | |
264 | EXPORT_SYMBOL(ib_register_device); | |
265 | ||
266 | /** | |
267 | * ib_unregister_device - Unregister an IB device | |
268 | * @device:Device to unregister | |
269 | * | |
270 | * Unregister an IB device. All clients will receive a remove callback. | |
271 | */ | |
272 | void ib_unregister_device(struct ib_device *device) | |
273 | { | |
274 | struct ib_client *client; | |
275 | struct ib_client_data *context, *tmp; | |
276 | unsigned long flags; | |
277 | ||
95ed644f | 278 | mutex_lock(&device_mutex); |
1da177e4 LT |
279 | |
280 | list_for_each_entry_reverse(client, &client_list, list) | |
281 | if (client->remove) | |
282 | client->remove(device); | |
283 | ||
284 | list_del(&device->core_list); | |
285 | ||
95ed644f | 286 | mutex_unlock(&device_mutex); |
1da177e4 LT |
287 | |
288 | spin_lock_irqsave(&device->client_data_lock, flags); | |
289 | list_for_each_entry_safe(context, tmp, &device->client_data_list, list) | |
290 | kfree(context); | |
291 | spin_unlock_irqrestore(&device->client_data_lock, flags); | |
292 | ||
293 | device->reg_state = IB_DEV_UNREGISTERED; | |
294 | } | |
295 | EXPORT_SYMBOL(ib_unregister_device); | |
296 | ||
297 | /** | |
298 | * ib_register_client - Register an IB client | |
299 | * @client:Client to register | |
300 | * | |
301 | * Upper level users of the IB drivers can use ib_register_client() to | |
302 | * register callbacks for IB device addition and removal. When an IB | |
303 | * device is added, each registered client's add method will be called | |
304 | * (in the order the clients were registered), and when a device is | |
305 | * removed, each client's remove method will be called (in the reverse | |
306 | * order that clients were registered). In addition, when | |
307 | * ib_register_client() is called, the client will receive an add | |
308 | * callback for all devices already registered. | |
309 | */ | |
310 | int ib_register_client(struct ib_client *client) | |
311 | { | |
312 | struct ib_device *device; | |
313 | ||
95ed644f | 314 | mutex_lock(&device_mutex); |
1da177e4 LT |
315 | |
316 | list_add_tail(&client->list, &client_list); | |
317 | list_for_each_entry(device, &device_list, core_list) | |
318 | if (client->add && !add_client_context(device, client)) | |
319 | client->add(device); | |
320 | ||
95ed644f | 321 | mutex_unlock(&device_mutex); |
1da177e4 LT |
322 | |
323 | return 0; | |
324 | } | |
325 | EXPORT_SYMBOL(ib_register_client); | |
326 | ||
327 | /** | |
328 | * ib_unregister_client - Unregister an IB client | |
329 | * @client:Client to unregister | |
330 | * | |
331 | * Upper level users use ib_unregister_client() to remove their client | |
332 | * registration. When ib_unregister_client() is called, the client | |
333 | * will receive a remove callback for each IB device still registered. | |
334 | */ | |
335 | void ib_unregister_client(struct ib_client *client) | |
336 | { | |
337 | struct ib_client_data *context, *tmp; | |
338 | struct ib_device *device; | |
339 | unsigned long flags; | |
340 | ||
95ed644f | 341 | mutex_lock(&device_mutex); |
1da177e4 LT |
342 | |
343 | list_for_each_entry(device, &device_list, core_list) { | |
344 | if (client->remove) | |
345 | client->remove(device); | |
346 | ||
347 | spin_lock_irqsave(&device->client_data_lock, flags); | |
348 | list_for_each_entry_safe(context, tmp, &device->client_data_list, list) | |
349 | if (context->client == client) { | |
350 | list_del(&context->list); | |
351 | kfree(context); | |
352 | } | |
353 | spin_unlock_irqrestore(&device->client_data_lock, flags); | |
354 | } | |
355 | list_del(&client->list); | |
356 | ||
95ed644f | 357 | mutex_unlock(&device_mutex); |
1da177e4 LT |
358 | } |
359 | EXPORT_SYMBOL(ib_unregister_client); | |
360 | ||
361 | /** | |
362 | * ib_get_client_data - Get IB client context | |
363 | * @device:Device to get context for | |
364 | * @client:Client to get context for | |
365 | * | |
366 | * ib_get_client_data() returns client context set with | |
367 | * ib_set_client_data(). | |
368 | */ | |
369 | void *ib_get_client_data(struct ib_device *device, struct ib_client *client) | |
370 | { | |
371 | struct ib_client_data *context; | |
372 | void *ret = NULL; | |
373 | unsigned long flags; | |
374 | ||
375 | spin_lock_irqsave(&device->client_data_lock, flags); | |
376 | list_for_each_entry(context, &device->client_data_list, list) | |
377 | if (context->client == client) { | |
378 | ret = context->data; | |
379 | break; | |
380 | } | |
381 | spin_unlock_irqrestore(&device->client_data_lock, flags); | |
382 | ||
383 | return ret; | |
384 | } | |
385 | EXPORT_SYMBOL(ib_get_client_data); | |
386 | ||
387 | /** | |
388 | * ib_set_client_data - Get IB client context | |
389 | * @device:Device to set context for | |
390 | * @client:Client to set context for | |
391 | * @data:Context to set | |
392 | * | |
393 | * ib_set_client_data() sets client context that can be retrieved with | |
394 | * ib_get_client_data(). | |
395 | */ | |
396 | void ib_set_client_data(struct ib_device *device, struct ib_client *client, | |
397 | void *data) | |
398 | { | |
399 | struct ib_client_data *context; | |
400 | unsigned long flags; | |
401 | ||
402 | spin_lock_irqsave(&device->client_data_lock, flags); | |
403 | list_for_each_entry(context, &device->client_data_list, list) | |
404 | if (context->client == client) { | |
405 | context->data = data; | |
406 | goto out; | |
407 | } | |
408 | ||
409 | printk(KERN_WARNING "No client context found for %s/%s\n", | |
410 | device->name, client->name); | |
411 | ||
412 | out: | |
413 | spin_unlock_irqrestore(&device->client_data_lock, flags); | |
414 | } | |
415 | EXPORT_SYMBOL(ib_set_client_data); | |
416 | ||
417 | /** | |
418 | * ib_register_event_handler - Register an IB event handler | |
419 | * @event_handler:Handler to register | |
420 | * | |
421 | * ib_register_event_handler() registers an event handler that will be | |
422 | * called back when asynchronous IB events occur (as defined in | |
423 | * chapter 11 of the InfiniBand Architecture Specification). This | |
424 | * callback may occur in interrupt context. | |
425 | */ | |
426 | int ib_register_event_handler (struct ib_event_handler *event_handler) | |
427 | { | |
428 | unsigned long flags; | |
429 | ||
430 | spin_lock_irqsave(&event_handler->device->event_handler_lock, flags); | |
431 | list_add_tail(&event_handler->list, | |
432 | &event_handler->device->event_handler_list); | |
433 | spin_unlock_irqrestore(&event_handler->device->event_handler_lock, flags); | |
434 | ||
435 | return 0; | |
436 | } | |
437 | EXPORT_SYMBOL(ib_register_event_handler); | |
438 | ||
439 | /** | |
440 | * ib_unregister_event_handler - Unregister an event handler | |
441 | * @event_handler:Handler to unregister | |
442 | * | |
443 | * Unregister an event handler registered with | |
444 | * ib_register_event_handler(). | |
445 | */ | |
446 | int ib_unregister_event_handler(struct ib_event_handler *event_handler) | |
447 | { | |
448 | unsigned long flags; | |
449 | ||
450 | spin_lock_irqsave(&event_handler->device->event_handler_lock, flags); | |
451 | list_del(&event_handler->list); | |
452 | spin_unlock_irqrestore(&event_handler->device->event_handler_lock, flags); | |
453 | ||
454 | return 0; | |
455 | } | |
456 | EXPORT_SYMBOL(ib_unregister_event_handler); | |
457 | ||
458 | /** | |
459 | * ib_dispatch_event - Dispatch an asynchronous event | |
460 | * @event:Event to dispatch | |
461 | * | |
462 | * Low-level drivers must call ib_dispatch_event() to dispatch the | |
463 | * event to all registered event handlers when an asynchronous event | |
464 | * occurs. | |
465 | */ | |
466 | void ib_dispatch_event(struct ib_event *event) | |
467 | { | |
468 | unsigned long flags; | |
469 | struct ib_event_handler *handler; | |
470 | ||
471 | spin_lock_irqsave(&event->device->event_handler_lock, flags); | |
472 | ||
473 | list_for_each_entry(handler, &event->device->event_handler_list, list) | |
474 | handler->handler(handler, event); | |
475 | ||
476 | spin_unlock_irqrestore(&event->device->event_handler_lock, flags); | |
477 | } | |
478 | EXPORT_SYMBOL(ib_dispatch_event); | |
479 | ||
480 | /** | |
481 | * ib_query_device - Query IB device attributes | |
482 | * @device:Device to query | |
483 | * @device_attr:Device attributes | |
484 | * | |
485 | * ib_query_device() returns the attributes of a device through the | |
486 | * @device_attr pointer. | |
487 | */ | |
488 | int ib_query_device(struct ib_device *device, | |
489 | struct ib_device_attr *device_attr) | |
490 | { | |
491 | return device->query_device(device, device_attr); | |
492 | } | |
493 | EXPORT_SYMBOL(ib_query_device); | |
494 | ||
495 | /** | |
496 | * ib_query_port - Query IB port attributes | |
497 | * @device:Device to query | |
498 | * @port_num:Port number to query | |
499 | * @port_attr:Port attributes | |
500 | * | |
501 | * ib_query_port() returns the attributes of a port through the | |
502 | * @port_attr pointer. | |
503 | */ | |
504 | int ib_query_port(struct ib_device *device, | |
505 | u8 port_num, | |
506 | struct ib_port_attr *port_attr) | |
507 | { | |
116c0074 RD |
508 | if (device->node_type == IB_NODE_SWITCH) { |
509 | if (port_num) | |
510 | return -EINVAL; | |
511 | } else if (port_num < 1 || port_num > device->phys_port_cnt) | |
512 | return -EINVAL; | |
513 | ||
1da177e4 LT |
514 | return device->query_port(device, port_num, port_attr); |
515 | } | |
516 | EXPORT_SYMBOL(ib_query_port); | |
517 | ||
518 | /** | |
519 | * ib_query_gid - Get GID table entry | |
520 | * @device:Device to query | |
521 | * @port_num:Port number to query | |
522 | * @index:GID table index to query | |
523 | * @gid:Returned GID | |
524 | * | |
525 | * ib_query_gid() fetches the specified GID table entry. | |
526 | */ | |
527 | int ib_query_gid(struct ib_device *device, | |
528 | u8 port_num, int index, union ib_gid *gid) | |
529 | { | |
530 | return device->query_gid(device, port_num, index, gid); | |
531 | } | |
532 | EXPORT_SYMBOL(ib_query_gid); | |
533 | ||
534 | /** | |
535 | * ib_query_pkey - Get P_Key table entry | |
536 | * @device:Device to query | |
537 | * @port_num:Port number to query | |
538 | * @index:P_Key table index to query | |
539 | * @pkey:Returned P_Key | |
540 | * | |
541 | * ib_query_pkey() fetches the specified P_Key table entry. | |
542 | */ | |
543 | int ib_query_pkey(struct ib_device *device, | |
544 | u8 port_num, u16 index, u16 *pkey) | |
545 | { | |
546 | return device->query_pkey(device, port_num, index, pkey); | |
547 | } | |
548 | EXPORT_SYMBOL(ib_query_pkey); | |
549 | ||
550 | /** | |
551 | * ib_modify_device - Change IB device attributes | |
552 | * @device:Device to modify | |
553 | * @device_modify_mask:Mask of attributes to change | |
554 | * @device_modify:New attribute values | |
555 | * | |
556 | * ib_modify_device() changes a device's attributes as specified by | |
557 | * the @device_modify_mask and @device_modify structure. | |
558 | */ | |
559 | int ib_modify_device(struct ib_device *device, | |
560 | int device_modify_mask, | |
561 | struct ib_device_modify *device_modify) | |
562 | { | |
563 | return device->modify_device(device, device_modify_mask, | |
564 | device_modify); | |
565 | } | |
566 | EXPORT_SYMBOL(ib_modify_device); | |
567 | ||
568 | /** | |
569 | * ib_modify_port - Modifies the attributes for the specified port. | |
570 | * @device: The device to modify. | |
571 | * @port_num: The number of the port to modify. | |
572 | * @port_modify_mask: Mask used to specify which attributes of the port | |
573 | * to change. | |
574 | * @port_modify: New attribute values for the port. | |
575 | * | |
576 | * ib_modify_port() changes a port's attributes as specified by the | |
577 | * @port_modify_mask and @port_modify structure. | |
578 | */ | |
579 | int ib_modify_port(struct ib_device *device, | |
580 | u8 port_num, int port_modify_mask, | |
581 | struct ib_port_modify *port_modify) | |
582 | { | |
116c0074 RD |
583 | if (device->node_type == IB_NODE_SWITCH) { |
584 | if (port_num) | |
585 | return -EINVAL; | |
586 | } else if (port_num < 1 || port_num > device->phys_port_cnt) | |
587 | return -EINVAL; | |
588 | ||
1da177e4 LT |
589 | return device->modify_port(device, port_num, port_modify_mask, |
590 | port_modify); | |
591 | } | |
592 | EXPORT_SYMBOL(ib_modify_port); | |
593 | ||
594 | static int __init ib_core_init(void) | |
595 | { | |
596 | int ret; | |
597 | ||
598 | ret = ib_sysfs_setup(); | |
599 | if (ret) | |
600 | printk(KERN_WARNING "Couldn't create InfiniBand device class\n"); | |
601 | ||
602 | ret = ib_cache_setup(); | |
603 | if (ret) { | |
604 | printk(KERN_WARNING "Couldn't set up InfiniBand P_Key/GID cache\n"); | |
605 | ib_sysfs_cleanup(); | |
606 | } | |
607 | ||
608 | return ret; | |
609 | } | |
610 | ||
611 | static void __exit ib_core_cleanup(void) | |
612 | { | |
613 | ib_cache_cleanup(); | |
614 | ib_sysfs_cleanup(); | |
615 | } | |
616 | ||
617 | module_init(ib_core_init); | |
618 | module_exit(ib_core_cleanup); |