1/* 2 3 * Copyright (c) 2004 Topspin Communications. All rights reserved. 4 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 5 * 6 * This software is available to you under a choice of one of two 7 * licenses. You may choose to be licensed under the terms of the GNU 8 * General Public License (GPL) Version 2, available from the file 9 * COPYING in the main directory of this source tree, or the 10 * OpenIB.org BSD license below: 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 16 * - Redistributions of source code must retain the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer. 19 * 20 * - Redistributions in binary form must reproduce the above 21 * copyright notice, this list of conditions and the following 22 * disclaimer in the documentation and/or other materials 23 * provided with the distribution. 24 * 25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32 * SOFTWARE. 33 34 35 #include <linux/module.h> 36 #include <linux/string.h> 37 #include <linux/errno.h> 38 #include <linux/kernel.h> 39 #include <linux/slab.h> 40 #include <linux/mutex.h> 41 #include <linux/workqueue.h> 42 */ 43 44#include <linux/kernel.h> 45 46#include "core_priv.h" 47/* 48 MODULE_AUTHOR("Roland Dreier"); 49 MODULE_DESCRIPTION("core kernel InfiniBand API"); 50 MODULE_LICENSE("Dual BSD/GPL"); 51 52 #ifdef __ia64__ 53 workaround for a bug in hp chipset that would cause kernel 54 panic when dma resources are exhaused 55 int dma_map_sg_hp_wa = 0; 56 #endif 57 58 struct ib_client_data { 59 struct list_head list; 60 struct ib_client *client; 61 void * data; 62 }; 63 64 static LIST_HEAD(device_list); 65 static LIST_HEAD(client_list); 66 67 68 * device_mutex protects access to both device_list and client_list. 69 * There's no real point to using multiple locks or something fancier 70 * like an rwsem: we always access both lists, and we're always 71 * modifying one list or the other list. In any case this is not a 72 * hot path so there's no point in trying to optimize. 73 74 static DEFINE_MUTEX(device_mutex); 75 76 static int ib_device_check_mandatory(struct ib_device *device) 77 { 78 #define IB_MANDATORY_FUNC(x) { offsetof(struct ib_device, x), #x } 79 static const struct { 80 size_t offset; 81 char *name; 82 } mandatory_table[] = { 83 IB_MANDATORY_FUNC(query_device), 84 IB_MANDATORY_FUNC(query_port), 85 IB_MANDATORY_FUNC(query_pkey), 86 IB_MANDATORY_FUNC(query_gid), 87 IB_MANDATORY_FUNC(alloc_pd), 88 IB_MANDATORY_FUNC(dealloc_pd), 89 IB_MANDATORY_FUNC(create_ah), 90 IB_MANDATORY_FUNC(destroy_ah), 91 IB_MANDATORY_FUNC(create_qp), 92 IB_MANDATORY_FUNC(modify_qp), 93 IB_MANDATORY_FUNC(destroy_qp), 94 IB_MANDATORY_FUNC(post_send), 95 IB_MANDATORY_FUNC(post_recv), 96 IB_MANDATORY_FUNC(create_cq), 97 IB_MANDATORY_FUNC(destroy_cq), 98 IB_MANDATORY_FUNC(poll_cq), 99 IB_MANDATORY_FUNC(req_notify_cq), 100 IB_MANDATORY_FUNC(get_dma_mr), 101 IB_MANDATORY_FUNC(dereg_mr) 102 }; 103 int i; 104 105 for (i = 0; i < ARRAY_SIZE(mandatory_table); ++i) { 106 if (!*(void **) ((u_char *) device + mandatory_table[i].offset)) { 107 printk(KERN_WARNING "Device %s is missing mandatory function %s\n", 108 device->name, mandatory_table[i].name); 109 return -EINVAL; 110 } 111 } 112 113 return 0; 114 } 115 116 static struct ib_device *__ib_device_get_by_name(const char *name) 117 { 118 struct ib_device *device; 119 120 list_for_each_entry(device, &device_list, core_list) 121 if (!strncmp(name, device->name, IB_DEVICE_NAME_MAX)) 122 return device; 123 124 return NULL; 125 } 126 127 128 static int alloc_name(char *name) 129 { 130 unsigned long *inuse; 131 char buf[IB_DEVICE_NAME_MAX]; 132 struct ib_device *device; 133 int i; 134 135 inuse = (unsigned long *) get_zeroed_page(GFP_KERNEL); 136 if (!inuse) 137 return -ENOMEM; 138 139 list_for_each_entry(device, &device_list, core_list) { 140 if (!sscanf(device->name, name, &i)) 141 continue; 142 if (i < 0 || i >= PAGE_SIZE * 8) 143 continue; 144 snprintf(buf, sizeof buf, name, i); 145 if (!strncmp(buf, device->name, IB_DEVICE_NAME_MAX)) 146 set_bit(i, inuse); 147 } 148 149 i = find_first_zero_bit(inuse, PAGE_SIZE * 8); 150 free_page((unsigned long) inuse); 151 snprintf(buf, sizeof buf, name, i); 152 153 if (__ib_device_get_by_name(buf)) 154 return -ENFILE; 155 156 strlcpy(name, buf, IB_DEVICE_NAME_MAX); 157 return 0; 158 } 159 */ 160static int start_port(struct ib_device *device) { 161 return (device->node_type == RDMA_NODE_IB_SWITCH) ? 0 : 1; 162} 163 164static int end_port(struct ib_device *device) { 165 return (device->node_type == RDMA_NODE_IB_SWITCH) ? 166 0 : device->phys_port_cnt; 167} 168/* 169 * 170 * ib_alloc_device - allocate an IB device struct 171 * @size:size of structure to allocate 172 * 173 * Low-level drivers should use ib_alloc_device() to allocate &struct 174 * ib_device. @size is the size of the structure to be allocated, 175 * including any private data used by the low-level driver. 176 * ib_dealloc_device() must be used to free structures allocated with 177 * ib_alloc_device(). 178 */ 179struct ib_device *ib_alloc_device(size_t size) { 180 /*SHOULD BE UNCOMMENTED*/ 181 /*assert(size < sizeof(struct ib_device));*/ 182 183 /*THE SIZE SHOULD BE size*/ 184 return calloc(1, max(size, sizeof(struct ib_device))); 185} 186/* 187 EXPORT_SYMBOL(ib_alloc_device); 188 189 * 190 * ib_dealloc_device - free an IB device struct 191 * @device:structure to free 192 * 193 * Free a structure allocated with ib_alloc_device(). 194 195 void ib_dealloc_device(struct ib_device *device) 196 { 197 if (device->reg_state == IB_DEV_UNINITIALIZED) { 198 kfree(device); 199 return; 200 } 201 202 BUG_ON(device->reg_state != IB_DEV_UNREGISTERED); 203 204 kobject_put(&device->dev.kobj); 205 } 206 EXPORT_SYMBOL(ib_dealloc_device); 207 208 static int add_client_context(struct ib_device *device, struct ib_client *client) 209 { 210 struct ib_client_data *context; 211 unsigned long flags; 212 213 context = kmalloc(sizeof *context, GFP_KERNEL); 214 if (!context) { 215 printk(KERN_WARNING "Couldn't allocate client context for %s/%s\n", 216 device->name, client->name); 217 return -ENOMEM; 218 } 219 220 context->client = client; 221 context->data = NULL; 222 223 spin_lock_irqsave(&device->client_data_lock, flags); 224 list_add(&context->list, &device->client_data_list); 225 spin_unlock_irqrestore(&device->client_data_lock, flags); 226 227 return 0; 228 } 229 230 static int read_port_table_lengths(struct ib_device *device) 231 { 232 struct ib_port_attr *tprops = NULL; 233 int num_ports, ret = -ENOMEM; 234 u8 port_index; 235 236 tprops = kmalloc(sizeof *tprops, GFP_KERNEL); 237 if (!tprops) 238 goto out; 239 240 num_ports = end_port(device) - start_port(device) + 1; 241 242 device->pkey_tbl_len = kmalloc(sizeof *device->pkey_tbl_len * num_ports, 243 GFP_KERNEL); 244 device->gid_tbl_len = kmalloc(sizeof *device->gid_tbl_len * num_ports, 245 GFP_KERNEL); 246 if (!device->pkey_tbl_len || !device->gid_tbl_len) 247 goto err; 248 249 for (port_index = 0; port_index < num_ports; ++port_index) { 250 ret = ib_query_port(device, port_index + start_port(device), 251 tprops); 252 if (ret) 253 goto err; 254 device->pkey_tbl_len[port_index] = tprops->pkey_tbl_len; 255 device->gid_tbl_len[port_index] = tprops->gid_tbl_len; 256 } 257 258 ret = 0; 259 goto out; 260 261 err: 262 kfree(device->gid_tbl_len); 263 kfree(device->pkey_tbl_len); 264 out: 265 kfree(tprops); 266 return ret; 267 } 268 269 * 270 * ib_register_device - Register an IB device with IB core 271 * @device:Device to register 272 * 273 * Low-level drivers use ib_register_device() to register their 274 * devices with the IB core. All registered clients will receive a 275 * callback for each device that is added. @device must be allocated 276 * with ib_alloc_device(). 277 278 int ib_register_device(struct ib_device *device, 279 int (*port_callback)(struct ib_device *, 280 u8, struct kobject *)) 281 { 282 int ret; 283 284 mutex_lock(&device_mutex); 285 286 if (strchr(device->name, '%')) { 287 ret = alloc_name(device->name); 288 if (ret) 289 goto out; 290 } 291 292 if (ib_device_check_mandatory(device)) { 293 ret = -EINVAL; 294 goto out; 295 } 296 297 INIT_LIST_HEAD(&device->event_handler_list); 298 INIT_LIST_HEAD(&device->client_data_list); 299 spin_lock_init(&device->event_handler_lock); 300 spin_lock_init(&device->client_data_lock); 301 device->ib_uverbs_xrcd_table = RB_ROOT; 302 mutex_init(&device->xrcd_table_mutex); 303 304 ret = read_port_table_lengths(device); 305 if (ret) { 306 printk(KERN_WARNING "Couldn't create table lengths cache for device %s\n", 307 device->name); 308 goto out; 309 } 310 311 ret = ib_device_register_sysfs(device, port_callback); 312 if (ret) { 313 printk(KERN_WARNING "Couldn't register device %s with driver model\n", 314 device->name); 315 kfree(device->gid_tbl_len); 316 kfree(device->pkey_tbl_len); 317 goto out; 318 } 319 320 list_add_tail(&device->core_list, &device_list); 321 322 device->reg_state = IB_DEV_REGISTERED; 323 324 { 325 struct ib_client *client; 326 327 list_for_each_entry(client, &client_list, list) 328 if (client->add && !add_client_context(device, client)) 329 client->add(device); 330 } 331 332 out: 333 mutex_unlock(&device_mutex); 334 return ret; 335 } 336 EXPORT_SYMBOL(ib_register_device); 337 338 * 339 * ib_unregister_device - Unregister an IB device 340 * @device:Device to unregister 341 * 342 * Unregister an IB device. All clients will receive a remove callback. 343 344 void ib_unregister_device(struct ib_device *device) 345 { 346 struct ib_client *client; 347 struct ib_client_data *context, *tmp; 348 unsigned long flags; 349 350 mutex_lock(&device_mutex); 351 352 list_for_each_entry_reverse(client, &client_list, list) 353 if (client->remove) 354 client->remove(device); 355 356 list_del(&device->core_list); 357 358 kfree(device->gid_tbl_len); 359 kfree(device->pkey_tbl_len); 360 361 mutex_unlock(&device_mutex); 362 363 ib_device_unregister_sysfs(device); 364 365 spin_lock_irqsave(&device->client_data_lock, flags); 366 list_for_each_entry_safe(context, tmp, &device->client_data_list, list) 367 kfree(context); 368 spin_unlock_irqrestore(&device->client_data_lock, flags); 369 370 device->reg_state = IB_DEV_UNREGISTERED; 371 } 372 EXPORT_SYMBOL(ib_unregister_device); 373 374 * 375 * ib_register_client - Register an IB client 376 * @client:Client to register 377 * 378 * Upper level users of the IB drivers can use ib_register_client() to 379 * register callbacks for IB device addition and removal. When an IB 380 * device is added, each registered client's add method will be called 381 * (in the order the clients were registered), and when a device is 382 * removed, each client's remove method will be called (in the reverse 383 * order that clients were registered). In addition, when 384 * ib_register_client() is called, the client will receive an add 385 * callback for all devices already registered. 386 387 int ib_register_client(struct ib_client *client) 388 { 389 struct ib_device *device; 390 391 mutex_lock(&device_mutex); 392 393 list_add_tail(&client->list, &client_list); 394 list_for_each_entry(device, &device_list, core_list) 395 if (client->add && !add_client_context(device, client)) 396 client->add(device); 397 398 mutex_unlock(&device_mutex); 399 400 return 0; 401 } 402 EXPORT_SYMBOL(ib_register_client); 403 404 * 405 * ib_unregister_client - Unregister an IB client 406 * @client:Client to unregister 407 * 408 * Upper level users use ib_unregister_client() to remove their client 409 * registration. When ib_unregister_client() is called, the client 410 * will receive a remove callback for each IB device still registered. 411 412 void ib_unregister_client(struct ib_client *client) 413 { 414 struct ib_client_data *context, *tmp; 415 struct ib_device *device; 416 unsigned long flags; 417 418 mutex_lock(&device_mutex); 419 420 list_for_each_entry(device, &device_list, core_list) { 421 if (client->remove) 422 client->remove(device); 423 424 spin_lock_irqsave(&device->client_data_lock, flags); 425 list_for_each_entry_safe(context, tmp, &device->client_data_list, list) 426 if (context->client == client) { 427 list_del(&context->list); 428 kfree(context); 429 } 430 spin_unlock_irqrestore(&device->client_data_lock, flags); 431 } 432 list_del(&client->list); 433 434 mutex_unlock(&device_mutex); 435 } 436 EXPORT_SYMBOL(ib_unregister_client); 437 438 * 439 * ib_get_client_data - Get IB client context 440 * @device:Device to get context for 441 * @client:Client to get context for 442 * 443 * ib_get_client_data() returns client context set with 444 * ib_set_client_data(). 445 446 void *ib_get_client_data(struct ib_device *device, struct ib_client *client) 447 { 448 struct ib_client_data *context; 449 void *ret = NULL; 450 unsigned long flags; 451 452 spin_lock_irqsave(&device->client_data_lock, flags); 453 list_for_each_entry(context, &device->client_data_list, list) 454 if (context->client == client) { 455 ret = context->data; 456 break; 457 } 458 spin_unlock_irqrestore(&device->client_data_lock, flags); 459 460 return ret; 461 } 462 EXPORT_SYMBOL(ib_get_client_data); 463 464 * 465 * ib_set_client_data - Set IB client context 466 * @device:Device to set context for 467 * @client:Client to set context for 468 * @data:Context to set 469 * 470 * ib_set_client_data() sets client context that can be retrieved with 471 * ib_get_client_data(). 472 473 void ib_set_client_data(struct ib_device *device, struct ib_client *client, 474 void *data) 475 { 476 struct ib_client_data *context; 477 unsigned long flags; 478 479 spin_lock_irqsave(&device->client_data_lock, flags); 480 list_for_each_entry(context, &device->client_data_list, list) 481 if (context->client == client) { 482 context->data = data; 483 goto out; 484 } 485 486 printk(KERN_WARNING "No client context found for %s/%s\n", 487 device->name, client->name); 488 489 out: 490 spin_unlock_irqrestore(&device->client_data_lock, flags); 491 } 492 EXPORT_SYMBOL(ib_set_client_data); 493 494 * 495 * ib_register_event_handler - Register an IB event handler 496 * @event_handler:Handler to register 497 * 498 * ib_register_event_handler() registers an event handler that will be 499 * called back when asynchronous IB events occur (as defined in 500 * chapter 11 of the InfiniBand Architecture Specification). This 501 * callback may occur in interrupt context. 502 503 int ib_register_event_handler (struct ib_event_handler *event_handler) 504 { 505 unsigned long flags; 506 507 spin_lock_irqsave(&event_handler->device->event_handler_lock, flags); 508 list_add_tail(&event_handler->list, 509 &event_handler->device->event_handler_list); 510 spin_unlock_irqrestore(&event_handler->device->event_handler_lock, flags); 511 512 return 0; 513 } 514 EXPORT_SYMBOL(ib_register_event_handler); 515 516 * 517 * ib_unregister_event_handler - Unregister an event handler 518 * @event_handler:Handler to unregister 519 * 520 * Unregister an event handler registered with 521 * ib_register_event_handler(). 522 523 int ib_unregister_event_handler(struct ib_event_handler *event_handler) 524 { 525 unsigned long flags; 526 527 spin_lock_irqsave(&event_handler->device->event_handler_lock, flags); 528 list_del(&event_handler->list); 529 spin_unlock_irqrestore(&event_handler->device->event_handler_lock, flags); 530 531 return 0; 532 } 533 EXPORT_SYMBOL(ib_unregister_event_handler); 534 535 * 536 * ib_dispatch_event - Dispatch an asynchronous event 537 * @event:Event to dispatch 538 * 539 * Low-level drivers must call ib_dispatch_event() to dispatch the 540 * event to all registered event handlers when an asynchronous event 541 * occurs. 542 543 void ib_dispatch_event(struct ib_event *event) 544 { 545 unsigned long flags; 546 struct ib_event_handler *handler; 547 548 spin_lock_irqsave(&event->device->event_handler_lock, flags); 549 550 list_for_each_entry(handler, &event->device->event_handler_list, list) 551 handler->handler(handler, event); 552 553 spin_unlock_irqrestore(&event->device->event_handler_lock, flags); 554 } 555 EXPORT_SYMBOL(ib_dispatch_event); 556 557 * 558 * ib_query_device - Query IB device attributes 559 * @device:Device to query 560 * @device_attr:Device attributes 561 * 562 * ib_query_device() returns the attributes of a device through the 563 * @device_attr pointer. 564 565 int ib_query_device(struct ib_device *device, 566 struct ib_device_attr *device_attr) 567 { 568 return device->query_device(device, device_attr); 569 } 570 EXPORT_SYMBOL(ib_query_device); 571 572 * 573 * ib_query_port - Query IB port attributes 574 * @device:Device to query 575 * @port_num:Port number to query 576 * @port_attr:Port attributes 577 * 578 * ib_query_port() returns the attributes of a port through the 579 * @port_attr pointer. 580 */ 581int ib_query_port(struct ib_device *device, u8 port_num, 582 struct ib_port_attr *port_attr) { 583 if (port_num < start_port(device) || port_num > end_port(device)) 584 return -EINVAL; 585 586 return device->query_port(device, port_num, port_attr); 587} 588/* 589 EXPORT_SYMBOL(ib_query_port); 590 591 * 592 * ib_query_gid - Get GID table entry 593 * @device:Device to query 594 * @port_num:Port number to query 595 * @index:GID table index to query 596 * @gid:Returned GID 597 * 598 * ib_query_gid() fetches the specified GID table entry. 599 */ 600int ib_query_gid(struct ib_device *device, u8 port_num, int index, 601 union ib_gid *gid) { 602 return device->query_gid(device, port_num, index, gid); 603} 604/* 605 EXPORT_SYMBOL(ib_query_gid); 606 607 * 608 * ib_query_pkey - Get P_Key table entry 609 * @device:Device to query 610 * @port_num:Port number to query 611 * @index:P_Key table index to query 612 * @pkey:Returned P_Key 613 * 614 * ib_query_pkey() fetches the specified P_Key table entry. 615 */ 616int ib_query_pkey(struct ib_device *device, u8 port_num, u16 index, u16 *pkey) { 617 return device->query_pkey(device, port_num, index, pkey); 618} 619/* 620 EXPORT_SYMBOL(ib_query_pkey); 621 622 * 623 * ib_modify_device - Change IB device attributes 624 * @device:Device to modify 625 * @device_modify_mask:Mask of attributes to change 626 * @device_modify:New attribute values 627 * 628 * ib_modify_device() changes a device's attributes as specified by 629 * the @device_modify_mask and @device_modify structure. 630 631 int ib_modify_device(struct ib_device *device, 632 int device_modify_mask, 633 struct ib_device_modify *device_modify) 634 { 635 return device->modify_device(device, device_modify_mask, 636 device_modify); 637 } 638 EXPORT_SYMBOL(ib_modify_device); 639 640 * 641 * ib_modify_port - Modifies the attributes for the specified port. 642 * @device: The device to modify. 643 * @port_num: The number of the port to modify. 644 * @port_modify_mask: Mask used to specify which attributes of the port 645 * to change. 646 * @port_modify: New attribute values for the port. 647 * 648 * ib_modify_port() changes a port's attributes as specified by the 649 * @port_modify_mask and @port_modify structure. 650 651 int ib_modify_port(struct ib_device *device, 652 u8 port_num, int port_modify_mask, 653 struct ib_port_modify *port_modify) 654 { 655 if (port_num < start_port(device) || port_num > end_port(device)) 656 return -EINVAL; 657 658 return device->modify_port(device, port_num, port_modify_mask, 659 port_modify); 660 } 661 EXPORT_SYMBOL(ib_modify_port); 662 663 * 664 * ib_find_gid - Returns the port number and GID table index where 665 * a specified GID value occurs. 666 * @device: The device to query. 667 * @gid: The GID value to search for. 668 * @port_num: The port number of the device where the GID value was found. 669 * @index: The index into the GID table where the GID was found. This 670 * parameter may be NULL. 671 672 int ib_find_gid(struct ib_device *device, union ib_gid *gid, 673 u8 *port_num, u16 *index) 674 { 675 union ib_gid tmp_gid; 676 int ret, port, i; 677 678 for (port = start_port(device); port <= end_port(device); ++port) { 679 for (i = 0; i < device->gid_tbl_len[port - start_port(device)]; ++i) { 680 ret = ib_query_gid(device, port, i, &tmp_gid); 681 if (ret) 682 return ret; 683 if (!memcmp(&tmp_gid, gid, sizeof *gid)) { 684 *port_num = port; 685 if (index) 686 *index = i; 687 return 0; 688 } 689 } 690 } 691 692 return -ENOENT; 693 } 694 EXPORT_SYMBOL(ib_find_gid); 695 696 * 697 * ib_find_pkey - Returns the PKey table index where a specified 698 * PKey value occurs. 699 * @device: The device to query. 700 * @port_num: The port number of the device to search for the PKey. 701 * @pkey: The PKey value to search for. 702 * @index: The index into the PKey table where the PKey was found. 703 704 int ib_find_pkey(struct ib_device *device, 705 u8 port_num, u16 pkey, u16 *index) 706 { 707 int ret, i; 708 u16 tmp_pkey; 709 710 for (i = 0; i < device->pkey_tbl_len[port_num - start_port(device)]; ++i) { 711 ret = ib_query_pkey(device, port_num, i, &tmp_pkey); 712 if (ret) 713 return ret; 714 715 if ((pkey & 0x7fff) == (tmp_pkey & 0x7fff)) { 716 *index = i; 717 return 0; 718 } 719 } 720 721 return -ENOENT; 722 } 723 EXPORT_SYMBOL(ib_find_pkey); 724 725 static int __init ib_core_init(void) 726 { 727 int ret; 728 729 #ifdef __ia64__ 730 if (ia64_platform_is("hpzx1")) 731 dma_map_sg_hp_wa = 1; 732 #endif 733 734 ret = ib_sysfs_setup(); 735 if (ret) 736 printk(KERN_WARNING "Couldn't create InfiniBand device class\n"); 737 738 ret = ib_cache_setup(); 739 if (ret) { 740 printk(KERN_WARNING "Couldn't set up InfiniBand P_Key/GID cache\n"); 741 ib_sysfs_cleanup(); 742 } 743 744 return ret; 745 } 746 747 static void __exit ib_core_cleanup(void) 748 { 749 ib_cache_cleanup(); 750 ib_sysfs_cleanup(); 751 Make sure that any pending umem accounting work is done. 752 flush_scheduled_work(); 753 } 754 755 module_init(ib_core_init); 756 module_exit(ib_core_cleanup); 757 758 #undef MODULE_VERSION 759 #include <sys/module.h> 760 static int 761 ibcore_evhand(module_t mod, int event, void *arg) 762 { 763 return (0); 764 } 765 766 static moduledata_t ibcore_mod = { 767 .name = "ibcore", 768 .evhand = ibcore_evhand, 769 }; 770 771 MODULE_VERSION(ibcore, 1); 772 DECLARE_MODULE(ibcore, ibcore_mod, SI_SUB_SMP, SI_ORDER_ANY); 773 */ 774