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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> | |
9a6b090c | 39 | #include <linux/kernel.h> |
1da177e4 LT |
40 | #include <linux/slab.h> |
41 | #include <linux/init.h> | |
95ed644f | 42 | #include <linux/mutex.h> |
1da177e4 LT |
43 | |
44 | #include "core_priv.h" | |
45 | ||
46 | MODULE_AUTHOR("Roland Dreier"); | |
47 | MODULE_DESCRIPTION("core kernel InfiniBand API"); | |
48 | MODULE_LICENSE("Dual BSD/GPL"); | |
49 | ||
50 | struct ib_client_data { | |
51 | struct list_head list; | |
52 | struct ib_client *client; | |
53 | void * data; | |
54 | }; | |
55 | ||
56 | static LIST_HEAD(device_list); | |
57 | static LIST_HEAD(client_list); | |
58 | ||
59 | /* | |
95ed644f | 60 | * device_mutex protects access to both device_list and client_list. |
1da177e4 LT |
61 | * There's no real point to using multiple locks or something fancier |
62 | * like an rwsem: we always access both lists, and we're always | |
63 | * modifying one list or the other list. In any case this is not a | |
64 | * hot path so there's no point in trying to optimize. | |
65 | */ | |
95ed644f | 66 | static DEFINE_MUTEX(device_mutex); |
1da177e4 LT |
67 | |
68 | static int ib_device_check_mandatory(struct ib_device *device) | |
69 | { | |
70 | #define IB_MANDATORY_FUNC(x) { offsetof(struct ib_device, x), #x } | |
71 | static const struct { | |
72 | size_t offset; | |
73 | char *name; | |
74 | } mandatory_table[] = { | |
75 | IB_MANDATORY_FUNC(query_device), | |
76 | IB_MANDATORY_FUNC(query_port), | |
77 | IB_MANDATORY_FUNC(query_pkey), | |
78 | IB_MANDATORY_FUNC(query_gid), | |
79 | IB_MANDATORY_FUNC(alloc_pd), | |
80 | IB_MANDATORY_FUNC(dealloc_pd), | |
81 | IB_MANDATORY_FUNC(create_ah), | |
82 | IB_MANDATORY_FUNC(destroy_ah), | |
83 | IB_MANDATORY_FUNC(create_qp), | |
84 | IB_MANDATORY_FUNC(modify_qp), | |
85 | IB_MANDATORY_FUNC(destroy_qp), | |
86 | IB_MANDATORY_FUNC(post_send), | |
87 | IB_MANDATORY_FUNC(post_recv), | |
88 | IB_MANDATORY_FUNC(create_cq), | |
89 | IB_MANDATORY_FUNC(destroy_cq), | |
90 | IB_MANDATORY_FUNC(poll_cq), | |
91 | IB_MANDATORY_FUNC(req_notify_cq), | |
92 | IB_MANDATORY_FUNC(get_dma_mr), | |
93 | IB_MANDATORY_FUNC(dereg_mr) | |
94 | }; | |
95 | int i; | |
96 | ||
9a6b090c | 97 | for (i = 0; i < ARRAY_SIZE(mandatory_table); ++i) { |
1da177e4 LT |
98 | if (!*(void **) ((void *) device + mandatory_table[i].offset)) { |
99 | printk(KERN_WARNING "Device %s is missing mandatory function %s\n", | |
100 | device->name, mandatory_table[i].name); | |
101 | return -EINVAL; | |
102 | } | |
103 | } | |
104 | ||
105 | return 0; | |
106 | } | |
107 | ||
108 | static struct ib_device *__ib_device_get_by_name(const char *name) | |
109 | { | |
110 | struct ib_device *device; | |
111 | ||
112 | list_for_each_entry(device, &device_list, core_list) | |
113 | if (!strncmp(name, device->name, IB_DEVICE_NAME_MAX)) | |
114 | return device; | |
115 | ||
116 | return NULL; | |
117 | } | |
118 | ||
119 | ||
120 | static int alloc_name(char *name) | |
121 | { | |
122 | long *inuse; | |
123 | char buf[IB_DEVICE_NAME_MAX]; | |
124 | struct ib_device *device; | |
125 | int i; | |
126 | ||
127 | inuse = (long *) get_zeroed_page(GFP_KERNEL); | |
128 | if (!inuse) | |
129 | return -ENOMEM; | |
130 | ||
131 | list_for_each_entry(device, &device_list, core_list) { | |
132 | if (!sscanf(device->name, name, &i)) | |
133 | continue; | |
134 | if (i < 0 || i >= PAGE_SIZE * 8) | |
135 | continue; | |
136 | snprintf(buf, sizeof buf, name, i); | |
137 | if (!strncmp(buf, device->name, IB_DEVICE_NAME_MAX)) | |
138 | set_bit(i, inuse); | |
139 | } | |
140 | ||
141 | i = find_first_zero_bit(inuse, PAGE_SIZE * 8); | |
142 | free_page((unsigned long) inuse); | |
143 | snprintf(buf, sizeof buf, name, i); | |
144 | ||
145 | if (__ib_device_get_by_name(buf)) | |
146 | return -ENFILE; | |
147 | ||
148 | strlcpy(name, buf, IB_DEVICE_NAME_MAX); | |
149 | return 0; | |
150 | } | |
151 | ||
152 | /** | |
153 | * ib_alloc_device - allocate an IB device struct | |
154 | * @size:size of structure to allocate | |
155 | * | |
156 | * Low-level drivers should use ib_alloc_device() to allocate &struct | |
157 | * ib_device. @size is the size of the structure to be allocated, | |
158 | * including any private data used by the low-level driver. | |
159 | * ib_dealloc_device() must be used to free structures allocated with | |
160 | * ib_alloc_device(). | |
161 | */ | |
162 | struct ib_device *ib_alloc_device(size_t size) | |
163 | { | |
1da177e4 LT |
164 | BUG_ON(size < sizeof (struct ib_device)); |
165 | ||
de6eb66b | 166 | return kzalloc(size, GFP_KERNEL); |
1da177e4 LT |
167 | } |
168 | EXPORT_SYMBOL(ib_alloc_device); | |
169 | ||
170 | /** | |
171 | * ib_dealloc_device - free an IB device struct | |
172 | * @device:structure to free | |
173 | * | |
174 | * Free a structure allocated with ib_alloc_device(). | |
175 | */ | |
176 | void ib_dealloc_device(struct ib_device *device) | |
177 | { | |
178 | if (device->reg_state == IB_DEV_UNINITIALIZED) { | |
179 | kfree(device); | |
180 | return; | |
181 | } | |
182 | ||
183 | BUG_ON(device->reg_state != IB_DEV_UNREGISTERED); | |
184 | ||
185 | ib_device_unregister_sysfs(device); | |
186 | } | |
187 | EXPORT_SYMBOL(ib_dealloc_device); | |
188 | ||
189 | static int add_client_context(struct ib_device *device, struct ib_client *client) | |
190 | { | |
191 | struct ib_client_data *context; | |
192 | unsigned long flags; | |
193 | ||
194 | context = kmalloc(sizeof *context, GFP_KERNEL); | |
195 | if (!context) { | |
196 | printk(KERN_WARNING "Couldn't allocate client context for %s/%s\n", | |
197 | device->name, client->name); | |
198 | return -ENOMEM; | |
199 | } | |
200 | ||
201 | context->client = client; | |
202 | context->data = NULL; | |
203 | ||
204 | spin_lock_irqsave(&device->client_data_lock, flags); | |
205 | list_add(&context->list, &device->client_data_list); | |
206 | spin_unlock_irqrestore(&device->client_data_lock, flags); | |
207 | ||
208 | return 0; | |
209 | } | |
210 | ||
211 | /** | |
212 | * ib_register_device - Register an IB device with IB core | |
213 | * @device:Device to register | |
214 | * | |
215 | * Low-level drivers use ib_register_device() to register their | |
216 | * devices with the IB core. All registered clients will receive a | |
217 | * callback for each device that is added. @device must be allocated | |
218 | * with ib_alloc_device(). | |
219 | */ | |
220 | int ib_register_device(struct ib_device *device) | |
221 | { | |
222 | int ret; | |
223 | ||
95ed644f | 224 | mutex_lock(&device_mutex); |
1da177e4 LT |
225 | |
226 | if (strchr(device->name, '%')) { | |
227 | ret = alloc_name(device->name); | |
228 | if (ret) | |
229 | goto out; | |
230 | } | |
231 | ||
232 | if (ib_device_check_mandatory(device)) { | |
233 | ret = -EINVAL; | |
234 | goto out; | |
235 | } | |
236 | ||
237 | INIT_LIST_HEAD(&device->event_handler_list); | |
238 | INIT_LIST_HEAD(&device->client_data_list); | |
239 | spin_lock_init(&device->event_handler_lock); | |
240 | spin_lock_init(&device->client_data_lock); | |
241 | ||
242 | ret = ib_device_register_sysfs(device); | |
243 | if (ret) { | |
244 | printk(KERN_WARNING "Couldn't register device %s with driver model\n", | |
245 | device->name); | |
246 | goto out; | |
247 | } | |
248 | ||
249 | list_add_tail(&device->core_list, &device_list); | |
250 | ||
251 | device->reg_state = IB_DEV_REGISTERED; | |
252 | ||
253 | { | |
254 | struct ib_client *client; | |
255 | ||
256 | list_for_each_entry(client, &client_list, list) | |
257 | if (client->add && !add_client_context(device, client)) | |
258 | client->add(device); | |
259 | } | |
260 | ||
261 | out: | |
95ed644f | 262 | mutex_unlock(&device_mutex); |
1da177e4 LT |
263 | return ret; |
264 | } | |
265 | EXPORT_SYMBOL(ib_register_device); | |
266 | ||
267 | /** | |
268 | * ib_unregister_device - Unregister an IB device | |
269 | * @device:Device to unregister | |
270 | * | |
271 | * Unregister an IB device. All clients will receive a remove callback. | |
272 | */ | |
273 | void ib_unregister_device(struct ib_device *device) | |
274 | { | |
275 | struct ib_client *client; | |
276 | struct ib_client_data *context, *tmp; | |
277 | unsigned long flags; | |
278 | ||
95ed644f | 279 | mutex_lock(&device_mutex); |
1da177e4 LT |
280 | |
281 | list_for_each_entry_reverse(client, &client_list, list) | |
282 | if (client->remove) | |
283 | client->remove(device); | |
284 | ||
285 | list_del(&device->core_list); | |
286 | ||
95ed644f | 287 | mutex_unlock(&device_mutex); |
1da177e4 LT |
288 | |
289 | spin_lock_irqsave(&device->client_data_lock, flags); | |
290 | list_for_each_entry_safe(context, tmp, &device->client_data_list, list) | |
291 | kfree(context); | |
292 | spin_unlock_irqrestore(&device->client_data_lock, flags); | |
293 | ||
294 | device->reg_state = IB_DEV_UNREGISTERED; | |
295 | } | |
296 | EXPORT_SYMBOL(ib_unregister_device); | |
297 | ||
298 | /** | |
299 | * ib_register_client - Register an IB client | |
300 | * @client:Client to register | |
301 | * | |
302 | * Upper level users of the IB drivers can use ib_register_client() to | |
303 | * register callbacks for IB device addition and removal. When an IB | |
304 | * device is added, each registered client's add method will be called | |
305 | * (in the order the clients were registered), and when a device is | |
306 | * removed, each client's remove method will be called (in the reverse | |
307 | * order that clients were registered). In addition, when | |
308 | * ib_register_client() is called, the client will receive an add | |
309 | * callback for all devices already registered. | |
310 | */ | |
311 | int ib_register_client(struct ib_client *client) | |
312 | { | |
313 | struct ib_device *device; | |
314 | ||
95ed644f | 315 | mutex_lock(&device_mutex); |
1da177e4 LT |
316 | |
317 | list_add_tail(&client->list, &client_list); | |
318 | list_for_each_entry(device, &device_list, core_list) | |
319 | if (client->add && !add_client_context(device, client)) | |
320 | client->add(device); | |
321 | ||
95ed644f | 322 | mutex_unlock(&device_mutex); |
1da177e4 LT |
323 | |
324 | return 0; | |
325 | } | |
326 | EXPORT_SYMBOL(ib_register_client); | |
327 | ||
328 | /** | |
329 | * ib_unregister_client - Unregister an IB client | |
330 | * @client:Client to unregister | |
331 | * | |
332 | * Upper level users use ib_unregister_client() to remove their client | |
333 | * registration. When ib_unregister_client() is called, the client | |
334 | * will receive a remove callback for each IB device still registered. | |
335 | */ | |
336 | void ib_unregister_client(struct ib_client *client) | |
337 | { | |
338 | struct ib_client_data *context, *tmp; | |
339 | struct ib_device *device; | |
340 | unsigned long flags; | |
341 | ||
95ed644f | 342 | mutex_lock(&device_mutex); |
1da177e4 LT |
343 | |
344 | list_for_each_entry(device, &device_list, core_list) { | |
345 | if (client->remove) | |
346 | client->remove(device); | |
347 | ||
348 | spin_lock_irqsave(&device->client_data_lock, flags); | |
349 | list_for_each_entry_safe(context, tmp, &device->client_data_list, list) | |
350 | if (context->client == client) { | |
351 | list_del(&context->list); | |
352 | kfree(context); | |
353 | } | |
354 | spin_unlock_irqrestore(&device->client_data_lock, flags); | |
355 | } | |
356 | list_del(&client->list); | |
357 | ||
95ed644f | 358 | mutex_unlock(&device_mutex); |
1da177e4 LT |
359 | } |
360 | EXPORT_SYMBOL(ib_unregister_client); | |
361 | ||
362 | /** | |
363 | * ib_get_client_data - Get IB client context | |
364 | * @device:Device to get context for | |
365 | * @client:Client to get context for | |
366 | * | |
367 | * ib_get_client_data() returns client context set with | |
368 | * ib_set_client_data(). | |
369 | */ | |
370 | void *ib_get_client_data(struct ib_device *device, struct ib_client *client) | |
371 | { | |
372 | struct ib_client_data *context; | |
373 | void *ret = NULL; | |
374 | unsigned long flags; | |
375 | ||
376 | spin_lock_irqsave(&device->client_data_lock, flags); | |
377 | list_for_each_entry(context, &device->client_data_list, list) | |
378 | if (context->client == client) { | |
379 | ret = context->data; | |
380 | break; | |
381 | } | |
382 | spin_unlock_irqrestore(&device->client_data_lock, flags); | |
383 | ||
384 | return ret; | |
385 | } | |
386 | EXPORT_SYMBOL(ib_get_client_data); | |
387 | ||
388 | /** | |
9cd330d3 | 389 | * ib_set_client_data - Set IB client context |
1da177e4 LT |
390 | * @device:Device to set context for |
391 | * @client:Client to set context for | |
392 | * @data:Context to set | |
393 | * | |
394 | * ib_set_client_data() sets client context that can be retrieved with | |
395 | * ib_get_client_data(). | |
396 | */ | |
397 | void ib_set_client_data(struct ib_device *device, struct ib_client *client, | |
398 | void *data) | |
399 | { | |
400 | struct ib_client_data *context; | |
401 | unsigned long flags; | |
402 | ||
403 | spin_lock_irqsave(&device->client_data_lock, flags); | |
404 | list_for_each_entry(context, &device->client_data_list, list) | |
405 | if (context->client == client) { | |
406 | context->data = data; | |
407 | goto out; | |
408 | } | |
409 | ||
410 | printk(KERN_WARNING "No client context found for %s/%s\n", | |
411 | device->name, client->name); | |
412 | ||
413 | out: | |
414 | spin_unlock_irqrestore(&device->client_data_lock, flags); | |
415 | } | |
416 | EXPORT_SYMBOL(ib_set_client_data); | |
417 | ||
418 | /** | |
419 | * ib_register_event_handler - Register an IB event handler | |
420 | * @event_handler:Handler to register | |
421 | * | |
422 | * ib_register_event_handler() registers an event handler that will be | |
423 | * called back when asynchronous IB events occur (as defined in | |
424 | * chapter 11 of the InfiniBand Architecture Specification). This | |
425 | * callback may occur in interrupt context. | |
426 | */ | |
427 | int ib_register_event_handler (struct ib_event_handler *event_handler) | |
428 | { | |
429 | unsigned long flags; | |
430 | ||
431 | spin_lock_irqsave(&event_handler->device->event_handler_lock, flags); | |
432 | list_add_tail(&event_handler->list, | |
433 | &event_handler->device->event_handler_list); | |
434 | spin_unlock_irqrestore(&event_handler->device->event_handler_lock, flags); | |
435 | ||
436 | return 0; | |
437 | } | |
438 | EXPORT_SYMBOL(ib_register_event_handler); | |
439 | ||
440 | /** | |
441 | * ib_unregister_event_handler - Unregister an event handler | |
442 | * @event_handler:Handler to unregister | |
443 | * | |
444 | * Unregister an event handler registered with | |
445 | * ib_register_event_handler(). | |
446 | */ | |
447 | int ib_unregister_event_handler(struct ib_event_handler *event_handler) | |
448 | { | |
449 | unsigned long flags; | |
450 | ||
451 | spin_lock_irqsave(&event_handler->device->event_handler_lock, flags); | |
452 | list_del(&event_handler->list); | |
453 | spin_unlock_irqrestore(&event_handler->device->event_handler_lock, flags); | |
454 | ||
455 | return 0; | |
456 | } | |
457 | EXPORT_SYMBOL(ib_unregister_event_handler); | |
458 | ||
459 | /** | |
460 | * ib_dispatch_event - Dispatch an asynchronous event | |
461 | * @event:Event to dispatch | |
462 | * | |
463 | * Low-level drivers must call ib_dispatch_event() to dispatch the | |
464 | * event to all registered event handlers when an asynchronous event | |
465 | * occurs. | |
466 | */ | |
467 | void ib_dispatch_event(struct ib_event *event) | |
468 | { | |
469 | unsigned long flags; | |
470 | struct ib_event_handler *handler; | |
471 | ||
472 | spin_lock_irqsave(&event->device->event_handler_lock, flags); | |
473 | ||
474 | list_for_each_entry(handler, &event->device->event_handler_list, list) | |
475 | handler->handler(handler, event); | |
476 | ||
477 | spin_unlock_irqrestore(&event->device->event_handler_lock, flags); | |
478 | } | |
479 | EXPORT_SYMBOL(ib_dispatch_event); | |
480 | ||
481 | /** | |
482 | * ib_query_device - Query IB device attributes | |
483 | * @device:Device to query | |
484 | * @device_attr:Device attributes | |
485 | * | |
486 | * ib_query_device() returns the attributes of a device through the | |
487 | * @device_attr pointer. | |
488 | */ | |
489 | int ib_query_device(struct ib_device *device, | |
490 | struct ib_device_attr *device_attr) | |
491 | { | |
492 | return device->query_device(device, device_attr); | |
493 | } | |
494 | EXPORT_SYMBOL(ib_query_device); | |
495 | ||
496 | /** | |
497 | * ib_query_port - Query IB port attributes | |
498 | * @device:Device to query | |
499 | * @port_num:Port number to query | |
500 | * @port_attr:Port attributes | |
501 | * | |
502 | * ib_query_port() returns the attributes of a port through the | |
503 | * @port_attr pointer. | |
504 | */ | |
505 | int ib_query_port(struct ib_device *device, | |
506 | u8 port_num, | |
507 | struct ib_port_attr *port_attr) | |
508 | { | |
07ebafba | 509 | if (device->node_type == RDMA_NODE_IB_SWITCH) { |
116c0074 RD |
510 | if (port_num) |
511 | return -EINVAL; | |
512 | } else if (port_num < 1 || port_num > device->phys_port_cnt) | |
513 | return -EINVAL; | |
514 | ||
1da177e4 LT |
515 | return device->query_port(device, port_num, port_attr); |
516 | } | |
517 | EXPORT_SYMBOL(ib_query_port); | |
518 | ||
519 | /** | |
520 | * ib_query_gid - Get GID table entry | |
521 | * @device:Device to query | |
522 | * @port_num:Port number to query | |
523 | * @index:GID table index to query | |
524 | * @gid:Returned GID | |
525 | * | |
526 | * ib_query_gid() fetches the specified GID table entry. | |
527 | */ | |
528 | int ib_query_gid(struct ib_device *device, | |
529 | u8 port_num, int index, union ib_gid *gid) | |
530 | { | |
531 | return device->query_gid(device, port_num, index, gid); | |
532 | } | |
533 | EXPORT_SYMBOL(ib_query_gid); | |
534 | ||
535 | /** | |
536 | * ib_query_pkey - Get P_Key table entry | |
537 | * @device:Device to query | |
538 | * @port_num:Port number to query | |
539 | * @index:P_Key table index to query | |
540 | * @pkey:Returned P_Key | |
541 | * | |
542 | * ib_query_pkey() fetches the specified P_Key table entry. | |
543 | */ | |
544 | int ib_query_pkey(struct ib_device *device, | |
545 | u8 port_num, u16 index, u16 *pkey) | |
546 | { | |
547 | return device->query_pkey(device, port_num, index, pkey); | |
548 | } | |
549 | EXPORT_SYMBOL(ib_query_pkey); | |
550 | ||
551 | /** | |
552 | * ib_modify_device - Change IB device attributes | |
553 | * @device:Device to modify | |
554 | * @device_modify_mask:Mask of attributes to change | |
555 | * @device_modify:New attribute values | |
556 | * | |
557 | * ib_modify_device() changes a device's attributes as specified by | |
558 | * the @device_modify_mask and @device_modify structure. | |
559 | */ | |
560 | int ib_modify_device(struct ib_device *device, | |
561 | int device_modify_mask, | |
562 | struct ib_device_modify *device_modify) | |
563 | { | |
564 | return device->modify_device(device, device_modify_mask, | |
565 | device_modify); | |
566 | } | |
567 | EXPORT_SYMBOL(ib_modify_device); | |
568 | ||
569 | /** | |
570 | * ib_modify_port - Modifies the attributes for the specified port. | |
571 | * @device: The device to modify. | |
572 | * @port_num: The number of the port to modify. | |
573 | * @port_modify_mask: Mask used to specify which attributes of the port | |
574 | * to change. | |
575 | * @port_modify: New attribute values for the port. | |
576 | * | |
577 | * ib_modify_port() changes a port's attributes as specified by the | |
578 | * @port_modify_mask and @port_modify structure. | |
579 | */ | |
580 | int ib_modify_port(struct ib_device *device, | |
581 | u8 port_num, int port_modify_mask, | |
582 | struct ib_port_modify *port_modify) | |
583 | { | |
07ebafba | 584 | if (device->node_type == RDMA_NODE_IB_SWITCH) { |
116c0074 RD |
585 | if (port_num) |
586 | return -EINVAL; | |
587 | } else if (port_num < 1 || port_num > device->phys_port_cnt) | |
588 | return -EINVAL; | |
589 | ||
1da177e4 LT |
590 | return device->modify_port(device, port_num, port_modify_mask, |
591 | port_modify); | |
592 | } | |
593 | EXPORT_SYMBOL(ib_modify_port); | |
594 | ||
595 | static int __init ib_core_init(void) | |
596 | { | |
597 | int ret; | |
598 | ||
599 | ret = ib_sysfs_setup(); | |
600 | if (ret) | |
601 | printk(KERN_WARNING "Couldn't create InfiniBand device class\n"); | |
602 | ||
603 | ret = ib_cache_setup(); | |
604 | if (ret) { | |
605 | printk(KERN_WARNING "Couldn't set up InfiniBand P_Key/GID cache\n"); | |
606 | ib_sysfs_cleanup(); | |
607 | } | |
608 | ||
609 | return ret; | |
610 | } | |
611 | ||
612 | static void __exit ib_core_cleanup(void) | |
613 | { | |
614 | ib_cache_cleanup(); | |
615 | ib_sysfs_cleanup(); | |
616 | } | |
617 | ||
618 | module_init(ib_core_init); | |
619 | module_exit(ib_core_cleanup); |