11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * Copyright (c) 2004 Topspin Communications. All rights reserved. 32a1d9b7fSRoland Dreier * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * This software is available to you under a choice of one of two 61da177e4SLinus Torvalds * licenses. You may choose to be licensed under the terms of the GNU 71da177e4SLinus Torvalds * General Public License (GPL) Version 2, available from the file 81da177e4SLinus Torvalds * COPYING in the main directory of this source tree, or the 91da177e4SLinus Torvalds * OpenIB.org BSD license below: 101da177e4SLinus Torvalds * 111da177e4SLinus Torvalds * Redistribution and use in source and binary forms, with or 121da177e4SLinus Torvalds * without modification, are permitted provided that the following 131da177e4SLinus Torvalds * conditions are met: 141da177e4SLinus Torvalds * 151da177e4SLinus Torvalds * - Redistributions of source code must retain the above 161da177e4SLinus Torvalds * copyright notice, this list of conditions and the following 171da177e4SLinus Torvalds * disclaimer. 181da177e4SLinus Torvalds * 191da177e4SLinus Torvalds * - Redistributions in binary form must reproduce the above 201da177e4SLinus Torvalds * copyright notice, this list of conditions and the following 211da177e4SLinus Torvalds * disclaimer in the documentation and/or other materials 221da177e4SLinus Torvalds * provided with the distribution. 231da177e4SLinus Torvalds * 241da177e4SLinus Torvalds * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 251da177e4SLinus Torvalds * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 261da177e4SLinus Torvalds * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 271da177e4SLinus Torvalds * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 281da177e4SLinus Torvalds * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 291da177e4SLinus Torvalds * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 301da177e4SLinus Torvalds * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 311da177e4SLinus Torvalds * SOFTWARE. 321da177e4SLinus Torvalds */ 331da177e4SLinus Torvalds 341da177e4SLinus Torvalds #include <linux/module.h> 351da177e4SLinus Torvalds #include <linux/string.h> 361da177e4SLinus Torvalds #include <linux/errno.h> 379a6b090cSAhmed S. Darwish #include <linux/kernel.h> 381da177e4SLinus Torvalds #include <linux/slab.h> 391da177e4SLinus Torvalds #include <linux/init.h> 4095ed644fSIngo Molnar #include <linux/mutex.h> 419268f72dSYotam Kenneth #include <linux/netdevice.h> 428f408ab6SDaniel Jurgens #include <linux/security.h> 438f408ab6SDaniel Jurgens #include <linux/notifier.h> 44b2cbae2cSRoland Dreier #include <rdma/rdma_netlink.h> 4503db3a2dSMatan Barak #include <rdma/ib_addr.h> 4603db3a2dSMatan Barak #include <rdma/ib_cache.h> 471da177e4SLinus Torvalds 481da177e4SLinus Torvalds #include "core_priv.h" 491da177e4SLinus Torvalds 501da177e4SLinus Torvalds MODULE_AUTHOR("Roland Dreier"); 511da177e4SLinus Torvalds MODULE_DESCRIPTION("core kernel InfiniBand API"); 521da177e4SLinus Torvalds MODULE_LICENSE("Dual BSD/GPL"); 531da177e4SLinus Torvalds 541da177e4SLinus Torvalds struct ib_client_data { 551da177e4SLinus Torvalds struct list_head list; 561da177e4SLinus Torvalds struct ib_client *client; 571da177e4SLinus Torvalds void * data; 587c1eb45aSHaggai Eran /* The device or client is going down. Do not call client or device 597c1eb45aSHaggai Eran * callbacks other than remove(). */ 607c1eb45aSHaggai Eran bool going_down; 611da177e4SLinus Torvalds }; 621da177e4SLinus Torvalds 6314d3a3b2SChristoph Hellwig struct workqueue_struct *ib_comp_wq; 64f0626710STejun Heo struct workqueue_struct *ib_wq; 65f0626710STejun Heo EXPORT_SYMBOL_GPL(ib_wq); 66f0626710STejun Heo 675aa44bb9SHaggai Eran /* The device_list and client_list contain devices and clients after their 685aa44bb9SHaggai Eran * registration has completed, and the devices and clients are removed 695aa44bb9SHaggai Eran * during unregistration. */ 701da177e4SLinus Torvalds static LIST_HEAD(device_list); 711da177e4SLinus Torvalds static LIST_HEAD(client_list); 721da177e4SLinus Torvalds 731da177e4SLinus Torvalds /* 745aa44bb9SHaggai Eran * device_mutex and lists_rwsem protect access to both device_list and 755aa44bb9SHaggai Eran * client_list. device_mutex protects writer access by device and client 765aa44bb9SHaggai Eran * registration / de-registration. lists_rwsem protects reader access to 775aa44bb9SHaggai Eran * these lists. Iterators of these lists must lock it for read, while updates 785aa44bb9SHaggai Eran * to the lists must be done with a write lock. A special case is when the 795aa44bb9SHaggai Eran * device_mutex is locked. In this case locking the lists for read access is 805aa44bb9SHaggai Eran * not necessary as the device_mutex implies it. 817c1eb45aSHaggai Eran * 827c1eb45aSHaggai Eran * lists_rwsem also protects access to the client data list. 831da177e4SLinus Torvalds */ 8495ed644fSIngo Molnar static DEFINE_MUTEX(device_mutex); 855aa44bb9SHaggai Eran static DECLARE_RWSEM(lists_rwsem); 865aa44bb9SHaggai Eran 878f408ab6SDaniel Jurgens static int ib_security_change(struct notifier_block *nb, unsigned long event, 888f408ab6SDaniel Jurgens void *lsm_data); 898f408ab6SDaniel Jurgens static void ib_policy_change_task(struct work_struct *work); 908f408ab6SDaniel Jurgens static DECLARE_WORK(ib_policy_change_work, ib_policy_change_task); 918f408ab6SDaniel Jurgens 928f408ab6SDaniel Jurgens static struct notifier_block ibdev_lsm_nb = { 938f408ab6SDaniel Jurgens .notifier_call = ib_security_change, 948f408ab6SDaniel Jurgens }; 951da177e4SLinus Torvalds 961da177e4SLinus Torvalds static int ib_device_check_mandatory(struct ib_device *device) 971da177e4SLinus Torvalds { 981da177e4SLinus Torvalds #define IB_MANDATORY_FUNC(x) { offsetof(struct ib_device, x), #x } 991da177e4SLinus Torvalds static const struct { 1001da177e4SLinus Torvalds size_t offset; 1011da177e4SLinus Torvalds char *name; 1021da177e4SLinus Torvalds } mandatory_table[] = { 1031da177e4SLinus Torvalds IB_MANDATORY_FUNC(query_device), 1041da177e4SLinus Torvalds IB_MANDATORY_FUNC(query_port), 1051da177e4SLinus Torvalds IB_MANDATORY_FUNC(query_pkey), 1061da177e4SLinus Torvalds IB_MANDATORY_FUNC(query_gid), 1071da177e4SLinus Torvalds IB_MANDATORY_FUNC(alloc_pd), 1081da177e4SLinus Torvalds IB_MANDATORY_FUNC(dealloc_pd), 1091da177e4SLinus Torvalds IB_MANDATORY_FUNC(create_ah), 1101da177e4SLinus Torvalds IB_MANDATORY_FUNC(destroy_ah), 1111da177e4SLinus Torvalds IB_MANDATORY_FUNC(create_qp), 1121da177e4SLinus Torvalds IB_MANDATORY_FUNC(modify_qp), 1131da177e4SLinus Torvalds IB_MANDATORY_FUNC(destroy_qp), 1141da177e4SLinus Torvalds IB_MANDATORY_FUNC(post_send), 1151da177e4SLinus Torvalds IB_MANDATORY_FUNC(post_recv), 1161da177e4SLinus Torvalds IB_MANDATORY_FUNC(create_cq), 1171da177e4SLinus Torvalds IB_MANDATORY_FUNC(destroy_cq), 1181da177e4SLinus Torvalds IB_MANDATORY_FUNC(poll_cq), 1191da177e4SLinus Torvalds IB_MANDATORY_FUNC(req_notify_cq), 1201da177e4SLinus Torvalds IB_MANDATORY_FUNC(get_dma_mr), 1217738613eSIra Weiny IB_MANDATORY_FUNC(dereg_mr), 1227738613eSIra Weiny IB_MANDATORY_FUNC(get_port_immutable) 1231da177e4SLinus Torvalds }; 1241da177e4SLinus Torvalds int i; 1251da177e4SLinus Torvalds 1269a6b090cSAhmed S. Darwish for (i = 0; i < ARRAY_SIZE(mandatory_table); ++i) { 1271da177e4SLinus Torvalds if (!*(void **) ((void *) device + mandatory_table[i].offset)) { 128aba25a3eSParav Pandit pr_warn("Device %s is missing mandatory function %s\n", 1291da177e4SLinus Torvalds device->name, mandatory_table[i].name); 1301da177e4SLinus Torvalds return -EINVAL; 1311da177e4SLinus Torvalds } 1321da177e4SLinus Torvalds } 1331da177e4SLinus Torvalds 1341da177e4SLinus Torvalds return 0; 1351da177e4SLinus Torvalds } 1361da177e4SLinus Torvalds 1371da177e4SLinus Torvalds static struct ib_device *__ib_device_get_by_name(const char *name) 1381da177e4SLinus Torvalds { 1391da177e4SLinus Torvalds struct ib_device *device; 1401da177e4SLinus Torvalds 1411da177e4SLinus Torvalds list_for_each_entry(device, &device_list, core_list) 1421da177e4SLinus Torvalds if (!strncmp(name, device->name, IB_DEVICE_NAME_MAX)) 1431da177e4SLinus Torvalds return device; 1441da177e4SLinus Torvalds 1451da177e4SLinus Torvalds return NULL; 1461da177e4SLinus Torvalds } 1471da177e4SLinus Torvalds 1481da177e4SLinus Torvalds 1491da177e4SLinus Torvalds static int alloc_name(char *name) 1501da177e4SLinus Torvalds { 15165d470b3SRoland Dreier unsigned long *inuse; 1521da177e4SLinus Torvalds char buf[IB_DEVICE_NAME_MAX]; 1531da177e4SLinus Torvalds struct ib_device *device; 1541da177e4SLinus Torvalds int i; 1551da177e4SLinus Torvalds 15665d470b3SRoland Dreier inuse = (unsigned long *) get_zeroed_page(GFP_KERNEL); 1571da177e4SLinus Torvalds if (!inuse) 1581da177e4SLinus Torvalds return -ENOMEM; 1591da177e4SLinus Torvalds 1601da177e4SLinus Torvalds list_for_each_entry(device, &device_list, core_list) { 1611da177e4SLinus Torvalds if (!sscanf(device->name, name, &i)) 1621da177e4SLinus Torvalds continue; 1631da177e4SLinus Torvalds if (i < 0 || i >= PAGE_SIZE * 8) 1641da177e4SLinus Torvalds continue; 1651da177e4SLinus Torvalds snprintf(buf, sizeof buf, name, i); 1661da177e4SLinus Torvalds if (!strncmp(buf, device->name, IB_DEVICE_NAME_MAX)) 1671da177e4SLinus Torvalds set_bit(i, inuse); 1681da177e4SLinus Torvalds } 1691da177e4SLinus Torvalds 1701da177e4SLinus Torvalds i = find_first_zero_bit(inuse, PAGE_SIZE * 8); 1711da177e4SLinus Torvalds free_page((unsigned long) inuse); 1721da177e4SLinus Torvalds snprintf(buf, sizeof buf, name, i); 1731da177e4SLinus Torvalds 1741da177e4SLinus Torvalds if (__ib_device_get_by_name(buf)) 1751da177e4SLinus Torvalds return -ENFILE; 1761da177e4SLinus Torvalds 1771da177e4SLinus Torvalds strlcpy(name, buf, IB_DEVICE_NAME_MAX); 1781da177e4SLinus Torvalds return 0; 1791da177e4SLinus Torvalds } 1801da177e4SLinus Torvalds 18155aeed06SJason Gunthorpe static void ib_device_release(struct device *device) 18255aeed06SJason Gunthorpe { 18355aeed06SJason Gunthorpe struct ib_device *dev = container_of(device, struct ib_device, dev); 18455aeed06SJason Gunthorpe 1854be3a4faSParav Pandit WARN_ON(dev->reg_state == IB_DEV_REGISTERED); 1864be3a4faSParav Pandit if (dev->reg_state == IB_DEV_UNREGISTERED) { 1874be3a4faSParav Pandit /* 1884be3a4faSParav Pandit * In IB_DEV_UNINITIALIZED state, cache or port table 1894be3a4faSParav Pandit * is not even created. Free cache and port table only when 1904be3a4faSParav Pandit * device reaches UNREGISTERED state. 1914be3a4faSParav Pandit */ 19203db3a2dSMatan Barak ib_cache_release_one(dev); 19355aeed06SJason Gunthorpe kfree(dev->port_immutable); 1944be3a4faSParav Pandit } 19555aeed06SJason Gunthorpe kfree(dev); 19655aeed06SJason Gunthorpe } 19755aeed06SJason Gunthorpe 19855aeed06SJason Gunthorpe static int ib_device_uevent(struct device *device, 19955aeed06SJason Gunthorpe struct kobj_uevent_env *env) 20055aeed06SJason Gunthorpe { 20155aeed06SJason Gunthorpe struct ib_device *dev = container_of(device, struct ib_device, dev); 20255aeed06SJason Gunthorpe 20355aeed06SJason Gunthorpe if (add_uevent_var(env, "NAME=%s", dev->name)) 20455aeed06SJason Gunthorpe return -ENOMEM; 20555aeed06SJason Gunthorpe 20655aeed06SJason Gunthorpe /* 20755aeed06SJason Gunthorpe * It would be nice to pass the node GUID with the event... 20855aeed06SJason Gunthorpe */ 20955aeed06SJason Gunthorpe 21055aeed06SJason Gunthorpe return 0; 21155aeed06SJason Gunthorpe } 21255aeed06SJason Gunthorpe 21355aeed06SJason Gunthorpe static struct class ib_class = { 21455aeed06SJason Gunthorpe .name = "infiniband", 21555aeed06SJason Gunthorpe .dev_release = ib_device_release, 21655aeed06SJason Gunthorpe .dev_uevent = ib_device_uevent, 21755aeed06SJason Gunthorpe }; 21855aeed06SJason Gunthorpe 2191da177e4SLinus Torvalds /** 2201da177e4SLinus Torvalds * ib_alloc_device - allocate an IB device struct 2211da177e4SLinus Torvalds * @size:size of structure to allocate 2221da177e4SLinus Torvalds * 2231da177e4SLinus Torvalds * Low-level drivers should use ib_alloc_device() to allocate &struct 2241da177e4SLinus Torvalds * ib_device. @size is the size of the structure to be allocated, 2251da177e4SLinus Torvalds * including any private data used by the low-level driver. 2261da177e4SLinus Torvalds * ib_dealloc_device() must be used to free structures allocated with 2271da177e4SLinus Torvalds * ib_alloc_device(). 2281da177e4SLinus Torvalds */ 2291da177e4SLinus Torvalds struct ib_device *ib_alloc_device(size_t size) 2301da177e4SLinus Torvalds { 23155aeed06SJason Gunthorpe struct ib_device *device; 2321da177e4SLinus Torvalds 23355aeed06SJason Gunthorpe if (WARN_ON(size < sizeof(struct ib_device))) 23455aeed06SJason Gunthorpe return NULL; 23555aeed06SJason Gunthorpe 23655aeed06SJason Gunthorpe device = kzalloc(size, GFP_KERNEL); 23755aeed06SJason Gunthorpe if (!device) 23855aeed06SJason Gunthorpe return NULL; 23955aeed06SJason Gunthorpe 24055aeed06SJason Gunthorpe device->dev.class = &ib_class; 24155aeed06SJason Gunthorpe device_initialize(&device->dev); 24255aeed06SJason Gunthorpe 24355aeed06SJason Gunthorpe dev_set_drvdata(&device->dev, device); 24455aeed06SJason Gunthorpe 24555aeed06SJason Gunthorpe INIT_LIST_HEAD(&device->event_handler_list); 24655aeed06SJason Gunthorpe spin_lock_init(&device->event_handler_lock); 24755aeed06SJason Gunthorpe spin_lock_init(&device->client_data_lock); 24855aeed06SJason Gunthorpe INIT_LIST_HEAD(&device->client_data_list); 24955aeed06SJason Gunthorpe INIT_LIST_HEAD(&device->port_list); 25055aeed06SJason Gunthorpe 25155aeed06SJason Gunthorpe return device; 2521da177e4SLinus Torvalds } 2531da177e4SLinus Torvalds EXPORT_SYMBOL(ib_alloc_device); 2541da177e4SLinus Torvalds 2551da177e4SLinus Torvalds /** 2561da177e4SLinus Torvalds * ib_dealloc_device - free an IB device struct 2571da177e4SLinus Torvalds * @device:structure to free 2581da177e4SLinus Torvalds * 2591da177e4SLinus Torvalds * Free a structure allocated with ib_alloc_device(). 2601da177e4SLinus Torvalds */ 2611da177e4SLinus Torvalds void ib_dealloc_device(struct ib_device *device) 2621da177e4SLinus Torvalds { 26355aeed06SJason Gunthorpe WARN_ON(device->reg_state != IB_DEV_UNREGISTERED && 26455aeed06SJason Gunthorpe device->reg_state != IB_DEV_UNINITIALIZED); 2659206dff1SRoland Dreier kobject_put(&device->dev.kobj); 2661da177e4SLinus Torvalds } 2671da177e4SLinus Torvalds EXPORT_SYMBOL(ib_dealloc_device); 2681da177e4SLinus Torvalds 2691da177e4SLinus Torvalds static int add_client_context(struct ib_device *device, struct ib_client *client) 2701da177e4SLinus Torvalds { 2711da177e4SLinus Torvalds struct ib_client_data *context; 2721da177e4SLinus Torvalds unsigned long flags; 2731da177e4SLinus Torvalds 2741da177e4SLinus Torvalds context = kmalloc(sizeof *context, GFP_KERNEL); 275a0b3455fSLeon Romanovsky if (!context) 2761da177e4SLinus Torvalds return -ENOMEM; 2771da177e4SLinus Torvalds 2781da177e4SLinus Torvalds context->client = client; 2791da177e4SLinus Torvalds context->data = NULL; 2807c1eb45aSHaggai Eran context->going_down = false; 2811da177e4SLinus Torvalds 2827c1eb45aSHaggai Eran down_write(&lists_rwsem); 2831da177e4SLinus Torvalds spin_lock_irqsave(&device->client_data_lock, flags); 2841da177e4SLinus Torvalds list_add(&context->list, &device->client_data_list); 2851da177e4SLinus Torvalds spin_unlock_irqrestore(&device->client_data_lock, flags); 2867c1eb45aSHaggai Eran up_write(&lists_rwsem); 2871da177e4SLinus Torvalds 2881da177e4SLinus Torvalds return 0; 2891da177e4SLinus Torvalds } 2901da177e4SLinus Torvalds 291337877a4SIra Weiny static int verify_immutable(const struct ib_device *dev, u8 port) 292337877a4SIra Weiny { 293337877a4SIra Weiny return WARN_ON(!rdma_cap_ib_mad(dev, port) && 294337877a4SIra Weiny rdma_max_mad_size(dev, port) != 0); 295337877a4SIra Weiny } 296337877a4SIra Weiny 2977738613eSIra Weiny static int read_port_immutable(struct ib_device *device) 2985eb620c8SYosef Etigin { 29955aeed06SJason Gunthorpe int ret; 3007738613eSIra Weiny u8 start_port = rdma_start_port(device); 3017738613eSIra Weiny u8 end_port = rdma_end_port(device); 3027738613eSIra Weiny u8 port; 3035eb620c8SYosef Etigin 3047738613eSIra Weiny /** 3057738613eSIra Weiny * device->port_immutable is indexed directly by the port number to make 3067738613eSIra Weiny * access to this data as efficient as possible. 3077738613eSIra Weiny * 3087738613eSIra Weiny * Therefore port_immutable is declared as a 1 based array with 3097738613eSIra Weiny * potential empty slots at the beginning. 3107738613eSIra Weiny */ 3117738613eSIra Weiny device->port_immutable = kzalloc(sizeof(*device->port_immutable) 3127738613eSIra Weiny * (end_port + 1), 3135eb620c8SYosef Etigin GFP_KERNEL); 3147738613eSIra Weiny if (!device->port_immutable) 31555aeed06SJason Gunthorpe return -ENOMEM; 3165eb620c8SYosef Etigin 3177738613eSIra Weiny for (port = start_port; port <= end_port; ++port) { 3187738613eSIra Weiny ret = device->get_port_immutable(device, port, 3197738613eSIra Weiny &device->port_immutable[port]); 3205eb620c8SYosef Etigin if (ret) 3215eb620c8SYosef Etigin return ret; 32255aeed06SJason Gunthorpe 32355aeed06SJason Gunthorpe if (verify_immutable(device, port)) 32455aeed06SJason Gunthorpe return -EINVAL; 32555aeed06SJason Gunthorpe } 32655aeed06SJason Gunthorpe return 0; 3275eb620c8SYosef Etigin } 3285eb620c8SYosef Etigin 3295fa76c20SIra Weiny void ib_get_device_fw_str(struct ib_device *dev, char *str, size_t str_len) 3305fa76c20SIra Weiny { 3315fa76c20SIra Weiny if (dev->get_dev_fw_str) 3325fa76c20SIra Weiny dev->get_dev_fw_str(dev, str, str_len); 3335fa76c20SIra Weiny else 3345fa76c20SIra Weiny str[0] = '\0'; 3355fa76c20SIra Weiny } 3365fa76c20SIra Weiny EXPORT_SYMBOL(ib_get_device_fw_str); 3375fa76c20SIra Weiny 338d291f1a6SDaniel Jurgens static int setup_port_pkey_list(struct ib_device *device) 339d291f1a6SDaniel Jurgens { 340d291f1a6SDaniel Jurgens int i; 341d291f1a6SDaniel Jurgens 342d291f1a6SDaniel Jurgens /** 343d291f1a6SDaniel Jurgens * device->port_pkey_list is indexed directly by the port number, 344d291f1a6SDaniel Jurgens * Therefore it is declared as a 1 based array with potential empty 345d291f1a6SDaniel Jurgens * slots at the beginning. 346d291f1a6SDaniel Jurgens */ 347d291f1a6SDaniel Jurgens device->port_pkey_list = kcalloc(rdma_end_port(device) + 1, 348d291f1a6SDaniel Jurgens sizeof(*device->port_pkey_list), 349d291f1a6SDaniel Jurgens GFP_KERNEL); 350d291f1a6SDaniel Jurgens 351d291f1a6SDaniel Jurgens if (!device->port_pkey_list) 352d291f1a6SDaniel Jurgens return -ENOMEM; 353d291f1a6SDaniel Jurgens 354d291f1a6SDaniel Jurgens for (i = 0; i < (rdma_end_port(device) + 1); i++) { 355d291f1a6SDaniel Jurgens spin_lock_init(&device->port_pkey_list[i].list_lock); 356d291f1a6SDaniel Jurgens INIT_LIST_HEAD(&device->port_pkey_list[i].pkey_list); 357d291f1a6SDaniel Jurgens } 358d291f1a6SDaniel Jurgens 359d291f1a6SDaniel Jurgens return 0; 360d291f1a6SDaniel Jurgens } 361d291f1a6SDaniel Jurgens 3628f408ab6SDaniel Jurgens static void ib_policy_change_task(struct work_struct *work) 3638f408ab6SDaniel Jurgens { 3648f408ab6SDaniel Jurgens struct ib_device *dev; 3658f408ab6SDaniel Jurgens 3668f408ab6SDaniel Jurgens down_read(&lists_rwsem); 3678f408ab6SDaniel Jurgens list_for_each_entry(dev, &device_list, core_list) { 3688f408ab6SDaniel Jurgens int i; 3698f408ab6SDaniel Jurgens 3708f408ab6SDaniel Jurgens for (i = rdma_start_port(dev); i <= rdma_end_port(dev); i++) { 3718f408ab6SDaniel Jurgens u64 sp; 3728f408ab6SDaniel Jurgens int ret = ib_get_cached_subnet_prefix(dev, 3738f408ab6SDaniel Jurgens i, 3748f408ab6SDaniel Jurgens &sp); 3758f408ab6SDaniel Jurgens 3768f408ab6SDaniel Jurgens WARN_ONCE(ret, 3778f408ab6SDaniel Jurgens "ib_get_cached_subnet_prefix err: %d, this should never happen here\n", 3788f408ab6SDaniel Jurgens ret); 379a750cfdeSDaniel Jurgens if (!ret) 3808f408ab6SDaniel Jurgens ib_security_cache_change(dev, i, sp); 3818f408ab6SDaniel Jurgens } 3828f408ab6SDaniel Jurgens } 3838f408ab6SDaniel Jurgens up_read(&lists_rwsem); 3848f408ab6SDaniel Jurgens } 3858f408ab6SDaniel Jurgens 3868f408ab6SDaniel Jurgens static int ib_security_change(struct notifier_block *nb, unsigned long event, 3878f408ab6SDaniel Jurgens void *lsm_data) 3888f408ab6SDaniel Jurgens { 3898f408ab6SDaniel Jurgens if (event != LSM_POLICY_CHANGE) 3908f408ab6SDaniel Jurgens return NOTIFY_DONE; 3918f408ab6SDaniel Jurgens 3928f408ab6SDaniel Jurgens schedule_work(&ib_policy_change_work); 3938f408ab6SDaniel Jurgens 3948f408ab6SDaniel Jurgens return NOTIFY_OK; 3958f408ab6SDaniel Jurgens } 3968f408ab6SDaniel Jurgens 3971da177e4SLinus Torvalds /** 3981da177e4SLinus Torvalds * ib_register_device - Register an IB device with IB core 3991da177e4SLinus Torvalds * @device:Device to register 4001da177e4SLinus Torvalds * 4011da177e4SLinus Torvalds * Low-level drivers use ib_register_device() to register their 4021da177e4SLinus Torvalds * devices with the IB core. All registered clients will receive a 4031da177e4SLinus Torvalds * callback for each device that is added. @device must be allocated 4041da177e4SLinus Torvalds * with ib_alloc_device(). 4051da177e4SLinus Torvalds */ 4069a6edb60SRalph Campbell int ib_register_device(struct ib_device *device, 4079a6edb60SRalph Campbell int (*port_callback)(struct ib_device *, 4089a6edb60SRalph Campbell u8, struct kobject *)) 4091da177e4SLinus Torvalds { 4101da177e4SLinus Torvalds int ret; 411b8071ad8SDoug Ledford struct ib_client *client; 4123e153a93SIra Weiny struct ib_udata uhw = {.outlen = 0, .inlen = 0}; 41399db9494SBart Van Assche struct device *parent = device->dev.parent; 4141da177e4SLinus Torvalds 41599db9494SBart Van Assche WARN_ON_ONCE(!parent); 4160957c29fSBart Van Assche WARN_ON_ONCE(device->dma_device); 4170957c29fSBart Van Assche if (device->dev.dma_ops) { 4180957c29fSBart Van Assche /* 4190957c29fSBart Van Assche * The caller provided custom DMA operations. Copy the 4200957c29fSBart Van Assche * DMA-related fields that are used by e.g. dma_alloc_coherent() 4210957c29fSBart Van Assche * into device->dev. 4220957c29fSBart Van Assche */ 4230957c29fSBart Van Assche device->dma_device = &device->dev; 42499db9494SBart Van Assche if (!device->dev.dma_mask) 42599db9494SBart Van Assche device->dev.dma_mask = parent->dma_mask; 42699db9494SBart Van Assche if (!device->dev.coherent_dma_mask) 4270957c29fSBart Van Assche device->dev.coherent_dma_mask = 4280957c29fSBart Van Assche parent->coherent_dma_mask; 4290957c29fSBart Van Assche } else { 4300957c29fSBart Van Assche /* 4310957c29fSBart Van Assche * The caller did not provide custom DMA operations. Use the 4320957c29fSBart Van Assche * DMA mapping operations of the parent device. 4330957c29fSBart Van Assche */ 4340957c29fSBart Van Assche device->dma_device = parent; 4350957c29fSBart Van Assche } 4361da177e4SLinus Torvalds 43795ed644fSIngo Molnar mutex_lock(&device_mutex); 4381da177e4SLinus Torvalds 4391da177e4SLinus Torvalds if (strchr(device->name, '%')) { 4401da177e4SLinus Torvalds ret = alloc_name(device->name); 4411da177e4SLinus Torvalds if (ret) 4421da177e4SLinus Torvalds goto out; 4431da177e4SLinus Torvalds } 4441da177e4SLinus Torvalds 4451da177e4SLinus Torvalds if (ib_device_check_mandatory(device)) { 4461da177e4SLinus Torvalds ret = -EINVAL; 4471da177e4SLinus Torvalds goto out; 4481da177e4SLinus Torvalds } 4491da177e4SLinus Torvalds 4507738613eSIra Weiny ret = read_port_immutable(device); 4515eb620c8SYosef Etigin if (ret) { 452aba25a3eSParav Pandit pr_warn("Couldn't create per port immutable data %s\n", 4535eb620c8SYosef Etigin device->name); 4545eb620c8SYosef Etigin goto out; 4555eb620c8SYosef Etigin } 4565eb620c8SYosef Etigin 457d291f1a6SDaniel Jurgens ret = setup_port_pkey_list(device); 458d291f1a6SDaniel Jurgens if (ret) { 459d291f1a6SDaniel Jurgens pr_warn("Couldn't create per port_pkey_list\n"); 460d291f1a6SDaniel Jurgens goto out; 461d291f1a6SDaniel Jurgens } 462d291f1a6SDaniel Jurgens 46303db3a2dSMatan Barak ret = ib_cache_setup_one(device); 46403db3a2dSMatan Barak if (ret) { 465aba25a3eSParav Pandit pr_warn("Couldn't set up InfiniBand P_Key/GID cache\n"); 4664be3a4faSParav Pandit goto port_cleanup; 46703db3a2dSMatan Barak } 46803db3a2dSMatan Barak 46943579b5fSParav Pandit ret = ib_device_register_rdmacg(device); 47043579b5fSParav Pandit if (ret) { 47143579b5fSParav Pandit pr_warn("Couldn't register device with rdma cgroup\n"); 4724be3a4faSParav Pandit goto cache_cleanup; 47343579b5fSParav Pandit } 47443579b5fSParav Pandit 4753e153a93SIra Weiny memset(&device->attrs, 0, sizeof(device->attrs)); 4763e153a93SIra Weiny ret = device->query_device(device, &device->attrs, &uhw); 4773e153a93SIra Weiny if (ret) { 478aba25a3eSParav Pandit pr_warn("Couldn't query the device attributes\n"); 4794be3a4faSParav Pandit goto cache_cleanup; 4803e153a93SIra Weiny } 4813e153a93SIra Weiny 4829a6edb60SRalph Campbell ret = ib_device_register_sysfs(device, port_callback); 4831da177e4SLinus Torvalds if (ret) { 484aba25a3eSParav Pandit pr_warn("Couldn't register device %s with driver model\n", 4851da177e4SLinus Torvalds device->name); 4864be3a4faSParav Pandit goto cache_cleanup; 4871da177e4SLinus Torvalds } 4881da177e4SLinus Torvalds 4891da177e4SLinus Torvalds device->reg_state = IB_DEV_REGISTERED; 4901da177e4SLinus Torvalds 4911da177e4SLinus Torvalds list_for_each_entry(client, &client_list, list) 4921da177e4SLinus Torvalds if (client->add && !add_client_context(device, client)) 4931da177e4SLinus Torvalds client->add(device); 4941da177e4SLinus Torvalds 4955aa44bb9SHaggai Eran down_write(&lists_rwsem); 4965aa44bb9SHaggai Eran list_add_tail(&device->core_list, &device_list); 4975aa44bb9SHaggai Eran up_write(&lists_rwsem); 4984be3a4faSParav Pandit mutex_unlock(&device_mutex); 4994be3a4faSParav Pandit return 0; 5004be3a4faSParav Pandit 5014be3a4faSParav Pandit cache_cleanup: 5024be3a4faSParav Pandit ib_cache_cleanup_one(device); 5034be3a4faSParav Pandit ib_cache_release_one(device); 5044be3a4faSParav Pandit port_cleanup: 5054be3a4faSParav Pandit kfree(device->port_immutable); 5061da177e4SLinus Torvalds out: 50795ed644fSIngo Molnar mutex_unlock(&device_mutex); 5081da177e4SLinus Torvalds return ret; 5091da177e4SLinus Torvalds } 5101da177e4SLinus Torvalds EXPORT_SYMBOL(ib_register_device); 5111da177e4SLinus Torvalds 5121da177e4SLinus Torvalds /** 5131da177e4SLinus Torvalds * ib_unregister_device - Unregister an IB device 5141da177e4SLinus Torvalds * @device:Device to unregister 5151da177e4SLinus Torvalds * 5161da177e4SLinus Torvalds * Unregister an IB device. All clients will receive a remove callback. 5171da177e4SLinus Torvalds */ 5181da177e4SLinus Torvalds void ib_unregister_device(struct ib_device *device) 5191da177e4SLinus Torvalds { 5201da177e4SLinus Torvalds struct ib_client_data *context, *tmp; 5211da177e4SLinus Torvalds unsigned long flags; 5221da177e4SLinus Torvalds 52395ed644fSIngo Molnar mutex_lock(&device_mutex); 5241da177e4SLinus Torvalds 5255aa44bb9SHaggai Eran down_write(&lists_rwsem); 5265aa44bb9SHaggai Eran list_del(&device->core_list); 5277c1eb45aSHaggai Eran spin_lock_irqsave(&device->client_data_lock, flags); 5287c1eb45aSHaggai Eran list_for_each_entry_safe(context, tmp, &device->client_data_list, list) 5297c1eb45aSHaggai Eran context->going_down = true; 5307c1eb45aSHaggai Eran spin_unlock_irqrestore(&device->client_data_lock, flags); 5317c1eb45aSHaggai Eran downgrade_write(&lists_rwsem); 5325aa44bb9SHaggai Eran 5337c1eb45aSHaggai Eran list_for_each_entry_safe(context, tmp, &device->client_data_list, 5347c1eb45aSHaggai Eran list) { 5357c1eb45aSHaggai Eran if (context->client->remove) 5367c1eb45aSHaggai Eran context->client->remove(device, context->data); 5377c1eb45aSHaggai Eran } 5387c1eb45aSHaggai Eran up_read(&lists_rwsem); 5391da177e4SLinus Torvalds 54095ed644fSIngo Molnar mutex_unlock(&device_mutex); 5411da177e4SLinus Torvalds 54243579b5fSParav Pandit ib_device_unregister_rdmacg(device); 5439206dff1SRoland Dreier ib_device_unregister_sysfs(device); 54403db3a2dSMatan Barak ib_cache_cleanup_one(device); 5459206dff1SRoland Dreier 546d291f1a6SDaniel Jurgens ib_security_destroy_port_pkey_list(device); 547d291f1a6SDaniel Jurgens kfree(device->port_pkey_list); 548d291f1a6SDaniel Jurgens 5497c1eb45aSHaggai Eran down_write(&lists_rwsem); 5501da177e4SLinus Torvalds spin_lock_irqsave(&device->client_data_lock, flags); 5511da177e4SLinus Torvalds list_for_each_entry_safe(context, tmp, &device->client_data_list, list) 5521da177e4SLinus Torvalds kfree(context); 5531da177e4SLinus Torvalds spin_unlock_irqrestore(&device->client_data_lock, flags); 5547c1eb45aSHaggai Eran up_write(&lists_rwsem); 5551da177e4SLinus Torvalds 5561da177e4SLinus Torvalds device->reg_state = IB_DEV_UNREGISTERED; 5571da177e4SLinus Torvalds } 5581da177e4SLinus Torvalds EXPORT_SYMBOL(ib_unregister_device); 5591da177e4SLinus Torvalds 5601da177e4SLinus Torvalds /** 5611da177e4SLinus Torvalds * ib_register_client - Register an IB client 5621da177e4SLinus Torvalds * @client:Client to register 5631da177e4SLinus Torvalds * 5641da177e4SLinus Torvalds * Upper level users of the IB drivers can use ib_register_client() to 5651da177e4SLinus Torvalds * register callbacks for IB device addition and removal. When an IB 5661da177e4SLinus Torvalds * device is added, each registered client's add method will be called 5671da177e4SLinus Torvalds * (in the order the clients were registered), and when a device is 5681da177e4SLinus Torvalds * removed, each client's remove method will be called (in the reverse 5691da177e4SLinus Torvalds * order that clients were registered). In addition, when 5701da177e4SLinus Torvalds * ib_register_client() is called, the client will receive an add 5711da177e4SLinus Torvalds * callback for all devices already registered. 5721da177e4SLinus Torvalds */ 5731da177e4SLinus Torvalds int ib_register_client(struct ib_client *client) 5741da177e4SLinus Torvalds { 5751da177e4SLinus Torvalds struct ib_device *device; 5761da177e4SLinus Torvalds 57795ed644fSIngo Molnar mutex_lock(&device_mutex); 5781da177e4SLinus Torvalds 5791da177e4SLinus Torvalds list_for_each_entry(device, &device_list, core_list) 5801da177e4SLinus Torvalds if (client->add && !add_client_context(device, client)) 5811da177e4SLinus Torvalds client->add(device); 5821da177e4SLinus Torvalds 5835aa44bb9SHaggai Eran down_write(&lists_rwsem); 5845aa44bb9SHaggai Eran list_add_tail(&client->list, &client_list); 5855aa44bb9SHaggai Eran up_write(&lists_rwsem); 5865aa44bb9SHaggai Eran 58795ed644fSIngo Molnar mutex_unlock(&device_mutex); 5881da177e4SLinus Torvalds 5891da177e4SLinus Torvalds return 0; 5901da177e4SLinus Torvalds } 5911da177e4SLinus Torvalds EXPORT_SYMBOL(ib_register_client); 5921da177e4SLinus Torvalds 5931da177e4SLinus Torvalds /** 5941da177e4SLinus Torvalds * ib_unregister_client - Unregister an IB client 5951da177e4SLinus Torvalds * @client:Client to unregister 5961da177e4SLinus Torvalds * 5971da177e4SLinus Torvalds * Upper level users use ib_unregister_client() to remove their client 5981da177e4SLinus Torvalds * registration. When ib_unregister_client() is called, the client 5991da177e4SLinus Torvalds * will receive a remove callback for each IB device still registered. 6001da177e4SLinus Torvalds */ 6011da177e4SLinus Torvalds void ib_unregister_client(struct ib_client *client) 6021da177e4SLinus Torvalds { 6031da177e4SLinus Torvalds struct ib_client_data *context, *tmp; 6041da177e4SLinus Torvalds struct ib_device *device; 6051da177e4SLinus Torvalds unsigned long flags; 6061da177e4SLinus Torvalds 60795ed644fSIngo Molnar mutex_lock(&device_mutex); 6081da177e4SLinus Torvalds 6095aa44bb9SHaggai Eran down_write(&lists_rwsem); 6105aa44bb9SHaggai Eran list_del(&client->list); 6115aa44bb9SHaggai Eran up_write(&lists_rwsem); 6125aa44bb9SHaggai Eran 6131da177e4SLinus Torvalds list_for_each_entry(device, &device_list, core_list) { 6147c1eb45aSHaggai Eran struct ib_client_data *found_context = NULL; 6151da177e4SLinus Torvalds 6167c1eb45aSHaggai Eran down_write(&lists_rwsem); 6171da177e4SLinus Torvalds spin_lock_irqsave(&device->client_data_lock, flags); 6181da177e4SLinus Torvalds list_for_each_entry_safe(context, tmp, &device->client_data_list, list) 6191da177e4SLinus Torvalds if (context->client == client) { 6207c1eb45aSHaggai Eran context->going_down = true; 6217c1eb45aSHaggai Eran found_context = context; 6227c1eb45aSHaggai Eran break; 6231da177e4SLinus Torvalds } 6241da177e4SLinus Torvalds spin_unlock_irqrestore(&device->client_data_lock, flags); 6257c1eb45aSHaggai Eran up_write(&lists_rwsem); 6267c1eb45aSHaggai Eran 6277c1eb45aSHaggai Eran if (client->remove) 6287c1eb45aSHaggai Eran client->remove(device, found_context ? 6297c1eb45aSHaggai Eran found_context->data : NULL); 6307c1eb45aSHaggai Eran 6317c1eb45aSHaggai Eran if (!found_context) { 6327c1eb45aSHaggai Eran pr_warn("No client context found for %s/%s\n", 6337c1eb45aSHaggai Eran device->name, client->name); 6347c1eb45aSHaggai Eran continue; 6357c1eb45aSHaggai Eran } 6367c1eb45aSHaggai Eran 6377c1eb45aSHaggai Eran down_write(&lists_rwsem); 6387c1eb45aSHaggai Eran spin_lock_irqsave(&device->client_data_lock, flags); 6397c1eb45aSHaggai Eran list_del(&found_context->list); 6407c1eb45aSHaggai Eran kfree(found_context); 6417c1eb45aSHaggai Eran spin_unlock_irqrestore(&device->client_data_lock, flags); 6427c1eb45aSHaggai Eran up_write(&lists_rwsem); 6431da177e4SLinus Torvalds } 6441da177e4SLinus Torvalds 64595ed644fSIngo Molnar mutex_unlock(&device_mutex); 6461da177e4SLinus Torvalds } 6471da177e4SLinus Torvalds EXPORT_SYMBOL(ib_unregister_client); 6481da177e4SLinus Torvalds 6491da177e4SLinus Torvalds /** 6501da177e4SLinus Torvalds * ib_get_client_data - Get IB client context 6511da177e4SLinus Torvalds * @device:Device to get context for 6521da177e4SLinus Torvalds * @client:Client to get context for 6531da177e4SLinus Torvalds * 6541da177e4SLinus Torvalds * ib_get_client_data() returns client context set with 6551da177e4SLinus Torvalds * ib_set_client_data(). 6561da177e4SLinus Torvalds */ 6571da177e4SLinus Torvalds void *ib_get_client_data(struct ib_device *device, struct ib_client *client) 6581da177e4SLinus Torvalds { 6591da177e4SLinus Torvalds struct ib_client_data *context; 6601da177e4SLinus Torvalds void *ret = NULL; 6611da177e4SLinus Torvalds unsigned long flags; 6621da177e4SLinus Torvalds 6631da177e4SLinus Torvalds spin_lock_irqsave(&device->client_data_lock, flags); 6641da177e4SLinus Torvalds list_for_each_entry(context, &device->client_data_list, list) 6651da177e4SLinus Torvalds if (context->client == client) { 6661da177e4SLinus Torvalds ret = context->data; 6671da177e4SLinus Torvalds break; 6681da177e4SLinus Torvalds } 6691da177e4SLinus Torvalds spin_unlock_irqrestore(&device->client_data_lock, flags); 6701da177e4SLinus Torvalds 6711da177e4SLinus Torvalds return ret; 6721da177e4SLinus Torvalds } 6731da177e4SLinus Torvalds EXPORT_SYMBOL(ib_get_client_data); 6741da177e4SLinus Torvalds 6751da177e4SLinus Torvalds /** 6769cd330d3SKrishna Kumar * ib_set_client_data - Set IB client context 6771da177e4SLinus Torvalds * @device:Device to set context for 6781da177e4SLinus Torvalds * @client:Client to set context for 6791da177e4SLinus Torvalds * @data:Context to set 6801da177e4SLinus Torvalds * 6811da177e4SLinus Torvalds * ib_set_client_data() sets client context that can be retrieved with 6821da177e4SLinus Torvalds * ib_get_client_data(). 6831da177e4SLinus Torvalds */ 6841da177e4SLinus Torvalds void ib_set_client_data(struct ib_device *device, struct ib_client *client, 6851da177e4SLinus Torvalds void *data) 6861da177e4SLinus Torvalds { 6871da177e4SLinus Torvalds struct ib_client_data *context; 6881da177e4SLinus Torvalds unsigned long flags; 6891da177e4SLinus Torvalds 6901da177e4SLinus Torvalds spin_lock_irqsave(&device->client_data_lock, flags); 6911da177e4SLinus Torvalds list_for_each_entry(context, &device->client_data_list, list) 6921da177e4SLinus Torvalds if (context->client == client) { 6931da177e4SLinus Torvalds context->data = data; 6941da177e4SLinus Torvalds goto out; 6951da177e4SLinus Torvalds } 6961da177e4SLinus Torvalds 697aba25a3eSParav Pandit pr_warn("No client context found for %s/%s\n", 6981da177e4SLinus Torvalds device->name, client->name); 6991da177e4SLinus Torvalds 7001da177e4SLinus Torvalds out: 7011da177e4SLinus Torvalds spin_unlock_irqrestore(&device->client_data_lock, flags); 7021da177e4SLinus Torvalds } 7031da177e4SLinus Torvalds EXPORT_SYMBOL(ib_set_client_data); 7041da177e4SLinus Torvalds 7051da177e4SLinus Torvalds /** 7061da177e4SLinus Torvalds * ib_register_event_handler - Register an IB event handler 7071da177e4SLinus Torvalds * @event_handler:Handler to register 7081da177e4SLinus Torvalds * 7091da177e4SLinus Torvalds * ib_register_event_handler() registers an event handler that will be 7101da177e4SLinus Torvalds * called back when asynchronous IB events occur (as defined in 7111da177e4SLinus Torvalds * chapter 11 of the InfiniBand Architecture Specification). This 7121da177e4SLinus Torvalds * callback may occur in interrupt context. 7131da177e4SLinus Torvalds */ 7141da177e4SLinus Torvalds int ib_register_event_handler (struct ib_event_handler *event_handler) 7151da177e4SLinus Torvalds { 7161da177e4SLinus Torvalds unsigned long flags; 7171da177e4SLinus Torvalds 7181da177e4SLinus Torvalds spin_lock_irqsave(&event_handler->device->event_handler_lock, flags); 7191da177e4SLinus Torvalds list_add_tail(&event_handler->list, 7201da177e4SLinus Torvalds &event_handler->device->event_handler_list); 7211da177e4SLinus Torvalds spin_unlock_irqrestore(&event_handler->device->event_handler_lock, flags); 7221da177e4SLinus Torvalds 7231da177e4SLinus Torvalds return 0; 7241da177e4SLinus Torvalds } 7251da177e4SLinus Torvalds EXPORT_SYMBOL(ib_register_event_handler); 7261da177e4SLinus Torvalds 7271da177e4SLinus Torvalds /** 7281da177e4SLinus Torvalds * ib_unregister_event_handler - Unregister an event handler 7291da177e4SLinus Torvalds * @event_handler:Handler to unregister 7301da177e4SLinus Torvalds * 7311da177e4SLinus Torvalds * Unregister an event handler registered with 7321da177e4SLinus Torvalds * ib_register_event_handler(). 7331da177e4SLinus Torvalds */ 7341da177e4SLinus Torvalds int ib_unregister_event_handler(struct ib_event_handler *event_handler) 7351da177e4SLinus Torvalds { 7361da177e4SLinus Torvalds unsigned long flags; 7371da177e4SLinus Torvalds 7381da177e4SLinus Torvalds spin_lock_irqsave(&event_handler->device->event_handler_lock, flags); 7391da177e4SLinus Torvalds list_del(&event_handler->list); 7401da177e4SLinus Torvalds spin_unlock_irqrestore(&event_handler->device->event_handler_lock, flags); 7411da177e4SLinus Torvalds 7421da177e4SLinus Torvalds return 0; 7431da177e4SLinus Torvalds } 7441da177e4SLinus Torvalds EXPORT_SYMBOL(ib_unregister_event_handler); 7451da177e4SLinus Torvalds 7461da177e4SLinus Torvalds /** 7471da177e4SLinus Torvalds * ib_dispatch_event - Dispatch an asynchronous event 7481da177e4SLinus Torvalds * @event:Event to dispatch 7491da177e4SLinus Torvalds * 7501da177e4SLinus Torvalds * Low-level drivers must call ib_dispatch_event() to dispatch the 7511da177e4SLinus Torvalds * event to all registered event handlers when an asynchronous event 7521da177e4SLinus Torvalds * occurs. 7531da177e4SLinus Torvalds */ 7541da177e4SLinus Torvalds void ib_dispatch_event(struct ib_event *event) 7551da177e4SLinus Torvalds { 7561da177e4SLinus Torvalds unsigned long flags; 7571da177e4SLinus Torvalds struct ib_event_handler *handler; 7581da177e4SLinus Torvalds 7591da177e4SLinus Torvalds spin_lock_irqsave(&event->device->event_handler_lock, flags); 7601da177e4SLinus Torvalds 7611da177e4SLinus Torvalds list_for_each_entry(handler, &event->device->event_handler_list, list) 7621da177e4SLinus Torvalds handler->handler(handler, event); 7631da177e4SLinus Torvalds 7641da177e4SLinus Torvalds spin_unlock_irqrestore(&event->device->event_handler_lock, flags); 7651da177e4SLinus Torvalds } 7661da177e4SLinus Torvalds EXPORT_SYMBOL(ib_dispatch_event); 7671da177e4SLinus Torvalds 7681da177e4SLinus Torvalds /** 7691da177e4SLinus Torvalds * ib_query_port - Query IB port attributes 7701da177e4SLinus Torvalds * @device:Device to query 7711da177e4SLinus Torvalds * @port_num:Port number to query 7721da177e4SLinus Torvalds * @port_attr:Port attributes 7731da177e4SLinus Torvalds * 7741da177e4SLinus Torvalds * ib_query_port() returns the attributes of a port through the 7751da177e4SLinus Torvalds * @port_attr pointer. 7761da177e4SLinus Torvalds */ 7771da177e4SLinus Torvalds int ib_query_port(struct ib_device *device, 7781da177e4SLinus Torvalds u8 port_num, 7791da177e4SLinus Torvalds struct ib_port_attr *port_attr) 7801da177e4SLinus Torvalds { 781fad61ad4SEli Cohen union ib_gid gid; 782fad61ad4SEli Cohen int err; 783fad61ad4SEli Cohen 78424dc831bSYuval Shaia if (!rdma_is_port_valid(device, port_num)) 785116c0074SRoland Dreier return -EINVAL; 786116c0074SRoland Dreier 787fad61ad4SEli Cohen memset(port_attr, 0, sizeof(*port_attr)); 788fad61ad4SEli Cohen err = device->query_port(device, port_num, port_attr); 789fad61ad4SEli Cohen if (err || port_attr->subnet_prefix) 790fad61ad4SEli Cohen return err; 791fad61ad4SEli Cohen 792d7012467SEli Cohen if (rdma_port_get_link_layer(device, port_num) != IB_LINK_LAYER_INFINIBAND) 793d7012467SEli Cohen return 0; 794d7012467SEli Cohen 795fad61ad4SEli Cohen err = ib_query_gid(device, port_num, 0, &gid, NULL); 796fad61ad4SEli Cohen if (err) 797fad61ad4SEli Cohen return err; 798fad61ad4SEli Cohen 799fad61ad4SEli Cohen port_attr->subnet_prefix = be64_to_cpu(gid.global.subnet_prefix); 800fad61ad4SEli Cohen return 0; 8011da177e4SLinus Torvalds } 8021da177e4SLinus Torvalds EXPORT_SYMBOL(ib_query_port); 8031da177e4SLinus Torvalds 8041da177e4SLinus Torvalds /** 8051da177e4SLinus Torvalds * ib_query_gid - Get GID table entry 8061da177e4SLinus Torvalds * @device:Device to query 8071da177e4SLinus Torvalds * @port_num:Port number to query 8081da177e4SLinus Torvalds * @index:GID table index to query 8091da177e4SLinus Torvalds * @gid:Returned GID 81055ee3ab2SMatan Barak * @attr: Returned GID attributes related to this GID index (only in RoCE). 81155ee3ab2SMatan Barak * NULL means ignore. 8121da177e4SLinus Torvalds * 8131da177e4SLinus Torvalds * ib_query_gid() fetches the specified GID table entry. 8141da177e4SLinus Torvalds */ 8151da177e4SLinus Torvalds int ib_query_gid(struct ib_device *device, 81655ee3ab2SMatan Barak u8 port_num, int index, union ib_gid *gid, 81755ee3ab2SMatan Barak struct ib_gid_attr *attr) 8181da177e4SLinus Torvalds { 81903db3a2dSMatan Barak if (rdma_cap_roce_gid_table(device, port_num)) 82055ee3ab2SMatan Barak return ib_get_cached_gid(device, port_num, index, gid, attr); 82155ee3ab2SMatan Barak 82255ee3ab2SMatan Barak if (attr) 82355ee3ab2SMatan Barak return -EINVAL; 82403db3a2dSMatan Barak 8251da177e4SLinus Torvalds return device->query_gid(device, port_num, index, gid); 8261da177e4SLinus Torvalds } 8271da177e4SLinus Torvalds EXPORT_SYMBOL(ib_query_gid); 8281da177e4SLinus Torvalds 8291da177e4SLinus Torvalds /** 83003db3a2dSMatan Barak * ib_enum_roce_netdev - enumerate all RoCE ports 83103db3a2dSMatan Barak * @ib_dev : IB device we want to query 83203db3a2dSMatan Barak * @filter: Should we call the callback? 83303db3a2dSMatan Barak * @filter_cookie: Cookie passed to filter 83403db3a2dSMatan Barak * @cb: Callback to call for each found RoCE ports 83503db3a2dSMatan Barak * @cookie: Cookie passed back to the callback 83603db3a2dSMatan Barak * 83703db3a2dSMatan Barak * Enumerates all of the physical RoCE ports of ib_dev 83803db3a2dSMatan Barak * which are related to netdevice and calls callback() on each 83903db3a2dSMatan Barak * device for which filter() function returns non zero. 84003db3a2dSMatan Barak */ 84103db3a2dSMatan Barak void ib_enum_roce_netdev(struct ib_device *ib_dev, 84203db3a2dSMatan Barak roce_netdev_filter filter, 84303db3a2dSMatan Barak void *filter_cookie, 84403db3a2dSMatan Barak roce_netdev_callback cb, 84503db3a2dSMatan Barak void *cookie) 84603db3a2dSMatan Barak { 84703db3a2dSMatan Barak u8 port; 84803db3a2dSMatan Barak 84903db3a2dSMatan Barak for (port = rdma_start_port(ib_dev); port <= rdma_end_port(ib_dev); 85003db3a2dSMatan Barak port++) 85103db3a2dSMatan Barak if (rdma_protocol_roce(ib_dev, port)) { 85203db3a2dSMatan Barak struct net_device *idev = NULL; 85303db3a2dSMatan Barak 85403db3a2dSMatan Barak if (ib_dev->get_netdev) 85503db3a2dSMatan Barak idev = ib_dev->get_netdev(ib_dev, port); 85603db3a2dSMatan Barak 85703db3a2dSMatan Barak if (idev && 85803db3a2dSMatan Barak idev->reg_state >= NETREG_UNREGISTERED) { 85903db3a2dSMatan Barak dev_put(idev); 86003db3a2dSMatan Barak idev = NULL; 86103db3a2dSMatan Barak } 86203db3a2dSMatan Barak 86303db3a2dSMatan Barak if (filter(ib_dev, port, idev, filter_cookie)) 86403db3a2dSMatan Barak cb(ib_dev, port, idev, cookie); 86503db3a2dSMatan Barak 86603db3a2dSMatan Barak if (idev) 86703db3a2dSMatan Barak dev_put(idev); 86803db3a2dSMatan Barak } 86903db3a2dSMatan Barak } 87003db3a2dSMatan Barak 87103db3a2dSMatan Barak /** 87203db3a2dSMatan Barak * ib_enum_all_roce_netdevs - enumerate all RoCE devices 87303db3a2dSMatan Barak * @filter: Should we call the callback? 87403db3a2dSMatan Barak * @filter_cookie: Cookie passed to filter 87503db3a2dSMatan Barak * @cb: Callback to call for each found RoCE ports 87603db3a2dSMatan Barak * @cookie: Cookie passed back to the callback 87703db3a2dSMatan Barak * 87803db3a2dSMatan Barak * Enumerates all RoCE devices' physical ports which are related 87903db3a2dSMatan Barak * to netdevices and calls callback() on each device for which 88003db3a2dSMatan Barak * filter() function returns non zero. 88103db3a2dSMatan Barak */ 88203db3a2dSMatan Barak void ib_enum_all_roce_netdevs(roce_netdev_filter filter, 88303db3a2dSMatan Barak void *filter_cookie, 88403db3a2dSMatan Barak roce_netdev_callback cb, 88503db3a2dSMatan Barak void *cookie) 88603db3a2dSMatan Barak { 88703db3a2dSMatan Barak struct ib_device *dev; 88803db3a2dSMatan Barak 88903db3a2dSMatan Barak down_read(&lists_rwsem); 89003db3a2dSMatan Barak list_for_each_entry(dev, &device_list, core_list) 89103db3a2dSMatan Barak ib_enum_roce_netdev(dev, filter, filter_cookie, cb, cookie); 89203db3a2dSMatan Barak up_read(&lists_rwsem); 89303db3a2dSMatan Barak } 89403db3a2dSMatan Barak 89503db3a2dSMatan Barak /** 8961da177e4SLinus Torvalds * ib_query_pkey - Get P_Key table entry 8971da177e4SLinus Torvalds * @device:Device to query 8981da177e4SLinus Torvalds * @port_num:Port number to query 8991da177e4SLinus Torvalds * @index:P_Key table index to query 9001da177e4SLinus Torvalds * @pkey:Returned P_Key 9011da177e4SLinus Torvalds * 9021da177e4SLinus Torvalds * ib_query_pkey() fetches the specified P_Key table entry. 9031da177e4SLinus Torvalds */ 9041da177e4SLinus Torvalds int ib_query_pkey(struct ib_device *device, 9051da177e4SLinus Torvalds u8 port_num, u16 index, u16 *pkey) 9061da177e4SLinus Torvalds { 9071da177e4SLinus Torvalds return device->query_pkey(device, port_num, index, pkey); 9081da177e4SLinus Torvalds } 9091da177e4SLinus Torvalds EXPORT_SYMBOL(ib_query_pkey); 9101da177e4SLinus Torvalds 9111da177e4SLinus Torvalds /** 9121da177e4SLinus Torvalds * ib_modify_device - Change IB device attributes 9131da177e4SLinus Torvalds * @device:Device to modify 9141da177e4SLinus Torvalds * @device_modify_mask:Mask of attributes to change 9151da177e4SLinus Torvalds * @device_modify:New attribute values 9161da177e4SLinus Torvalds * 9171da177e4SLinus Torvalds * ib_modify_device() changes a device's attributes as specified by 9181da177e4SLinus Torvalds * the @device_modify_mask and @device_modify structure. 9191da177e4SLinus Torvalds */ 9201da177e4SLinus Torvalds int ib_modify_device(struct ib_device *device, 9211da177e4SLinus Torvalds int device_modify_mask, 9221da177e4SLinus Torvalds struct ib_device_modify *device_modify) 9231da177e4SLinus Torvalds { 92410e1b54bSBart Van Assche if (!device->modify_device) 92510e1b54bSBart Van Assche return -ENOSYS; 92610e1b54bSBart Van Assche 9271da177e4SLinus Torvalds return device->modify_device(device, device_modify_mask, 9281da177e4SLinus Torvalds device_modify); 9291da177e4SLinus Torvalds } 9301da177e4SLinus Torvalds EXPORT_SYMBOL(ib_modify_device); 9311da177e4SLinus Torvalds 9321da177e4SLinus Torvalds /** 9331da177e4SLinus Torvalds * ib_modify_port - Modifies the attributes for the specified port. 9341da177e4SLinus Torvalds * @device: The device to modify. 9351da177e4SLinus Torvalds * @port_num: The number of the port to modify. 9361da177e4SLinus Torvalds * @port_modify_mask: Mask used to specify which attributes of the port 9371da177e4SLinus Torvalds * to change. 9381da177e4SLinus Torvalds * @port_modify: New attribute values for the port. 9391da177e4SLinus Torvalds * 9401da177e4SLinus Torvalds * ib_modify_port() changes a port's attributes as specified by the 9411da177e4SLinus Torvalds * @port_modify_mask and @port_modify structure. 9421da177e4SLinus Torvalds */ 9431da177e4SLinus Torvalds int ib_modify_port(struct ib_device *device, 9441da177e4SLinus Torvalds u8 port_num, int port_modify_mask, 9451da177e4SLinus Torvalds struct ib_port_modify *port_modify) 9461da177e4SLinus Torvalds { 94710e1b54bSBart Van Assche if (!device->modify_port) 94810e1b54bSBart Van Assche return -ENOSYS; 94910e1b54bSBart Van Assche 95024dc831bSYuval Shaia if (!rdma_is_port_valid(device, port_num)) 951116c0074SRoland Dreier return -EINVAL; 952116c0074SRoland Dreier 9531da177e4SLinus Torvalds return device->modify_port(device, port_num, port_modify_mask, 9541da177e4SLinus Torvalds port_modify); 9551da177e4SLinus Torvalds } 9561da177e4SLinus Torvalds EXPORT_SYMBOL(ib_modify_port); 9571da177e4SLinus Torvalds 9585eb620c8SYosef Etigin /** 9595eb620c8SYosef Etigin * ib_find_gid - Returns the port number and GID table index where 9605eb620c8SYosef Etigin * a specified GID value occurs. 9615eb620c8SYosef Etigin * @device: The device to query. 9625eb620c8SYosef Etigin * @gid: The GID value to search for. 963b39ffa1dSMatan Barak * @gid_type: Type of GID. 96455ee3ab2SMatan Barak * @ndev: The ndev related to the GID to search for. 9655eb620c8SYosef Etigin * @port_num: The port number of the device where the GID value was found. 9665eb620c8SYosef Etigin * @index: The index into the GID table where the GID was found. This 9675eb620c8SYosef Etigin * parameter may be NULL. 9685eb620c8SYosef Etigin */ 9695eb620c8SYosef Etigin int ib_find_gid(struct ib_device *device, union ib_gid *gid, 970b39ffa1dSMatan Barak enum ib_gid_type gid_type, struct net_device *ndev, 971b39ffa1dSMatan Barak u8 *port_num, u16 *index) 9725eb620c8SYosef Etigin { 9735eb620c8SYosef Etigin union ib_gid tmp_gid; 9745eb620c8SYosef Etigin int ret, port, i; 9755eb620c8SYosef Etigin 9760cf18d77SIra Weiny for (port = rdma_start_port(device); port <= rdma_end_port(device); ++port) { 97703db3a2dSMatan Barak if (rdma_cap_roce_gid_table(device, port)) { 978b39ffa1dSMatan Barak if (!ib_find_cached_gid_by_port(device, gid, gid_type, port, 97955ee3ab2SMatan Barak ndev, index)) { 98003db3a2dSMatan Barak *port_num = port; 98103db3a2dSMatan Barak return 0; 98203db3a2dSMatan Barak } 98398d25afaSDan Carpenter } 98403db3a2dSMatan Barak 985b39ffa1dSMatan Barak if (gid_type != IB_GID_TYPE_IB) 986b39ffa1dSMatan Barak continue; 987b39ffa1dSMatan Barak 9887738613eSIra Weiny for (i = 0; i < device->port_immutable[port].gid_tbl_len; ++i) { 98955ee3ab2SMatan Barak ret = ib_query_gid(device, port, i, &tmp_gid, NULL); 9905eb620c8SYosef Etigin if (ret) 9915eb620c8SYosef Etigin return ret; 9925eb620c8SYosef Etigin if (!memcmp(&tmp_gid, gid, sizeof *gid)) { 9935eb620c8SYosef Etigin *port_num = port; 9945eb620c8SYosef Etigin if (index) 9955eb620c8SYosef Etigin *index = i; 9965eb620c8SYosef Etigin return 0; 9975eb620c8SYosef Etigin } 9985eb620c8SYosef Etigin } 9995eb620c8SYosef Etigin } 10005eb620c8SYosef Etigin 10015eb620c8SYosef Etigin return -ENOENT; 10025eb620c8SYosef Etigin } 10035eb620c8SYosef Etigin EXPORT_SYMBOL(ib_find_gid); 10045eb620c8SYosef Etigin 10055eb620c8SYosef Etigin /** 10065eb620c8SYosef Etigin * ib_find_pkey - Returns the PKey table index where a specified 10075eb620c8SYosef Etigin * PKey value occurs. 10085eb620c8SYosef Etigin * @device: The device to query. 10095eb620c8SYosef Etigin * @port_num: The port number of the device to search for the PKey. 10105eb620c8SYosef Etigin * @pkey: The PKey value to search for. 10115eb620c8SYosef Etigin * @index: The index into the PKey table where the PKey was found. 10125eb620c8SYosef Etigin */ 10135eb620c8SYosef Etigin int ib_find_pkey(struct ib_device *device, 10145eb620c8SYosef Etigin u8 port_num, u16 pkey, u16 *index) 10155eb620c8SYosef Etigin { 10165eb620c8SYosef Etigin int ret, i; 10175eb620c8SYosef Etigin u16 tmp_pkey; 1018ff7166c4SJack Morgenstein int partial_ix = -1; 10195eb620c8SYosef Etigin 10207738613eSIra Weiny for (i = 0; i < device->port_immutable[port_num].pkey_tbl_len; ++i) { 10215eb620c8SYosef Etigin ret = ib_query_pkey(device, port_num, i, &tmp_pkey); 10225eb620c8SYosef Etigin if (ret) 10235eb620c8SYosef Etigin return ret; 102436026eccSMoni Shoua if ((pkey & 0x7fff) == (tmp_pkey & 0x7fff)) { 1025ff7166c4SJack Morgenstein /* if there is full-member pkey take it.*/ 1026ff7166c4SJack Morgenstein if (tmp_pkey & 0x8000) { 10275eb620c8SYosef Etigin *index = i; 10285eb620c8SYosef Etigin return 0; 10295eb620c8SYosef Etigin } 1030ff7166c4SJack Morgenstein if (partial_ix < 0) 1031ff7166c4SJack Morgenstein partial_ix = i; 1032ff7166c4SJack Morgenstein } 10335eb620c8SYosef Etigin } 10345eb620c8SYosef Etigin 1035ff7166c4SJack Morgenstein /*no full-member, if exists take the limited*/ 1036ff7166c4SJack Morgenstein if (partial_ix >= 0) { 1037ff7166c4SJack Morgenstein *index = partial_ix; 1038ff7166c4SJack Morgenstein return 0; 1039ff7166c4SJack Morgenstein } 10405eb620c8SYosef Etigin return -ENOENT; 10415eb620c8SYosef Etigin } 10425eb620c8SYosef Etigin EXPORT_SYMBOL(ib_find_pkey); 10435eb620c8SYosef Etigin 10449268f72dSYotam Kenneth /** 10459268f72dSYotam Kenneth * ib_get_net_dev_by_params() - Return the appropriate net_dev 10469268f72dSYotam Kenneth * for a received CM request 10479268f72dSYotam Kenneth * @dev: An RDMA device on which the request has been received. 10489268f72dSYotam Kenneth * @port: Port number on the RDMA device. 10499268f72dSYotam Kenneth * @pkey: The Pkey the request came on. 10509268f72dSYotam Kenneth * @gid: A GID that the net_dev uses to communicate. 10519268f72dSYotam Kenneth * @addr: Contains the IP address that the request specified as its 10529268f72dSYotam Kenneth * destination. 10539268f72dSYotam Kenneth */ 10549268f72dSYotam Kenneth struct net_device *ib_get_net_dev_by_params(struct ib_device *dev, 10559268f72dSYotam Kenneth u8 port, 10569268f72dSYotam Kenneth u16 pkey, 10579268f72dSYotam Kenneth const union ib_gid *gid, 10589268f72dSYotam Kenneth const struct sockaddr *addr) 10599268f72dSYotam Kenneth { 10609268f72dSYotam Kenneth struct net_device *net_dev = NULL; 10619268f72dSYotam Kenneth struct ib_client_data *context; 10629268f72dSYotam Kenneth 10639268f72dSYotam Kenneth if (!rdma_protocol_ib(dev, port)) 10649268f72dSYotam Kenneth return NULL; 10659268f72dSYotam Kenneth 10669268f72dSYotam Kenneth down_read(&lists_rwsem); 10679268f72dSYotam Kenneth 10689268f72dSYotam Kenneth list_for_each_entry(context, &dev->client_data_list, list) { 10699268f72dSYotam Kenneth struct ib_client *client = context->client; 10709268f72dSYotam Kenneth 10719268f72dSYotam Kenneth if (context->going_down) 10729268f72dSYotam Kenneth continue; 10739268f72dSYotam Kenneth 10749268f72dSYotam Kenneth if (client->get_net_dev_by_params) { 10759268f72dSYotam Kenneth net_dev = client->get_net_dev_by_params(dev, port, pkey, 10769268f72dSYotam Kenneth gid, addr, 10779268f72dSYotam Kenneth context->data); 10789268f72dSYotam Kenneth if (net_dev) 10799268f72dSYotam Kenneth break; 10809268f72dSYotam Kenneth } 10819268f72dSYotam Kenneth } 10829268f72dSYotam Kenneth 10839268f72dSYotam Kenneth up_read(&lists_rwsem); 10849268f72dSYotam Kenneth 10859268f72dSYotam Kenneth return net_dev; 10869268f72dSYotam Kenneth } 10879268f72dSYotam Kenneth EXPORT_SYMBOL(ib_get_net_dev_by_params); 10889268f72dSYotam Kenneth 1089c9901724SLeon Romanovsky static const struct ibnl_client_cbs ibnl_ls_cb_table[] = { 1090735c631aSMark Bloch [RDMA_NL_LS_OP_RESOLVE] = { 1091*e3a2b93dSLeon Romanovsky .dump = ib_nl_handle_resolve_resp, 1092*e3a2b93dSLeon Romanovsky .flags = RDMA_NL_ADMIN_PERM, 1093*e3a2b93dSLeon Romanovsky }, 1094735c631aSMark Bloch [RDMA_NL_LS_OP_SET_TIMEOUT] = { 1095*e3a2b93dSLeon Romanovsky .dump = ib_nl_handle_set_timeout, 1096*e3a2b93dSLeon Romanovsky .flags = RDMA_NL_ADMIN_PERM, 1097*e3a2b93dSLeon Romanovsky }, 1098ae43f828SMark Bloch [RDMA_NL_LS_OP_IP_RESOLVE] = { 1099*e3a2b93dSLeon Romanovsky .dump = ib_nl_handle_ip_res_resp, 1100*e3a2b93dSLeon Romanovsky .flags = RDMA_NL_ADMIN_PERM, 1101*e3a2b93dSLeon Romanovsky }, 1102735c631aSMark Bloch }; 1103735c631aSMark Bloch 11041da177e4SLinus Torvalds static int __init ib_core_init(void) 11051da177e4SLinus Torvalds { 11061da177e4SLinus Torvalds int ret; 11071da177e4SLinus Torvalds 1108f0626710STejun Heo ib_wq = alloc_workqueue("infiniband", 0, 0); 1109f0626710STejun Heo if (!ib_wq) 1110f0626710STejun Heo return -ENOMEM; 1111f0626710STejun Heo 111214d3a3b2SChristoph Hellwig ib_comp_wq = alloc_workqueue("ib-comp-wq", 1113b7363e67SSagi Grimberg WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_SYSFS, 0); 111414d3a3b2SChristoph Hellwig if (!ib_comp_wq) { 111514d3a3b2SChristoph Hellwig ret = -ENOMEM; 111614d3a3b2SChristoph Hellwig goto err; 111714d3a3b2SChristoph Hellwig } 111814d3a3b2SChristoph Hellwig 111955aeed06SJason Gunthorpe ret = class_register(&ib_class); 1120fd75c789SNir Muchtar if (ret) { 1121aba25a3eSParav Pandit pr_warn("Couldn't create InfiniBand device class\n"); 112214d3a3b2SChristoph Hellwig goto err_comp; 1123fd75c789SNir Muchtar } 11241da177e4SLinus Torvalds 1125c9901724SLeon Romanovsky ret = rdma_nl_init(); 11261da177e4SLinus Torvalds if (ret) { 1127c9901724SLeon Romanovsky pr_warn("Couldn't init IB netlink interface: err %d\n", ret); 1128fd75c789SNir Muchtar goto err_sysfs; 11291da177e4SLinus Torvalds } 11301da177e4SLinus Torvalds 1131e3f20f02SLeon Romanovsky ret = addr_init(); 1132e3f20f02SLeon Romanovsky if (ret) { 1133e3f20f02SLeon Romanovsky pr_warn("Could't init IB address resolution\n"); 1134e3f20f02SLeon Romanovsky goto err_ibnl; 1135e3f20f02SLeon Romanovsky } 1136e3f20f02SLeon Romanovsky 11374c2cb422SMark Bloch ret = ib_mad_init(); 11384c2cb422SMark Bloch if (ret) { 11394c2cb422SMark Bloch pr_warn("Couldn't init IB MAD\n"); 11404c2cb422SMark Bloch goto err_addr; 11414c2cb422SMark Bloch } 11424c2cb422SMark Bloch 1143c2e49c92SMark Bloch ret = ib_sa_init(); 1144c2e49c92SMark Bloch if (ret) { 1145c2e49c92SMark Bloch pr_warn("Couldn't init SA\n"); 1146c2e49c92SMark Bloch goto err_mad; 1147c2e49c92SMark Bloch } 1148c2e49c92SMark Bloch 11498f408ab6SDaniel Jurgens ret = register_lsm_notifier(&ibdev_lsm_nb); 11508f408ab6SDaniel Jurgens if (ret) { 11518f408ab6SDaniel Jurgens pr_warn("Couldn't register LSM notifier. ret %d\n", ret); 1152c9901724SLeon Romanovsky goto err_sa; 11538f408ab6SDaniel Jurgens } 11548f408ab6SDaniel Jurgens 1155c9901724SLeon Romanovsky rdma_nl_register(RDMA_NL_LS, ibnl_ls_cb_table); 115603db3a2dSMatan Barak ib_cache_setup(); 1157b2cbae2cSRoland Dreier 1158fd75c789SNir Muchtar return 0; 1159fd75c789SNir Muchtar 1160735c631aSMark Bloch err_sa: 1161735c631aSMark Bloch ib_sa_cleanup(); 1162c2e49c92SMark Bloch err_mad: 1163c2e49c92SMark Bloch ib_mad_cleanup(); 11644c2cb422SMark Bloch err_addr: 11654c2cb422SMark Bloch addr_cleanup(); 1166e3f20f02SLeon Romanovsky err_ibnl: 1167c9901724SLeon Romanovsky rdma_nl_exit(); 1168fd75c789SNir Muchtar err_sysfs: 116955aeed06SJason Gunthorpe class_unregister(&ib_class); 117014d3a3b2SChristoph Hellwig err_comp: 117114d3a3b2SChristoph Hellwig destroy_workqueue(ib_comp_wq); 1172fd75c789SNir Muchtar err: 1173fd75c789SNir Muchtar destroy_workqueue(ib_wq); 11741da177e4SLinus Torvalds return ret; 11751da177e4SLinus Torvalds } 11761da177e4SLinus Torvalds 11771da177e4SLinus Torvalds static void __exit ib_core_cleanup(void) 11781da177e4SLinus Torvalds { 11791da177e4SLinus Torvalds ib_cache_cleanup(); 1180c9901724SLeon Romanovsky rdma_nl_unregister(RDMA_NL_LS); 1181c9901724SLeon Romanovsky unregister_lsm_notifier(&ibdev_lsm_nb); 1182c2e49c92SMark Bloch ib_sa_cleanup(); 11834c2cb422SMark Bloch ib_mad_cleanup(); 1184e3f20f02SLeon Romanovsky addr_cleanup(); 1185c9901724SLeon Romanovsky rdma_nl_exit(); 118655aeed06SJason Gunthorpe class_unregister(&ib_class); 118714d3a3b2SChristoph Hellwig destroy_workqueue(ib_comp_wq); 1188f7c6a7b5SRoland Dreier /* Make sure that any pending umem accounting work is done. */ 1189f0626710STejun Heo destroy_workqueue(ib_wq); 11901da177e4SLinus Torvalds } 11911da177e4SLinus Torvalds 11921da177e4SLinus Torvalds module_init(ib_core_init); 11931da177e4SLinus Torvalds module_exit(ib_core_cleanup); 1194