Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2004 Topspin Communications. All rights reserved. |
Roland Dreier | 2a1d9b7 | 2005-08-10 23:03:10 -0700 | [diff] [blame] | 3 | * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | */ |
| 33 | |
| 34 | #include <linux/module.h> |
| 35 | #include <linux/string.h> |
| 36 | #include <linux/errno.h> |
Ahmed S. Darwish | 9a6b090 | 2007-02-06 18:07:25 +0200 | [diff] [blame] | 37 | #include <linux/kernel.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include <linux/slab.h> |
| 39 | #include <linux/init.h> |
Ingo Molnar | 95ed644 | 2006-01-13 14:51:39 -0800 | [diff] [blame] | 40 | #include <linux/mutex.h> |
Yotam Kenneth | 9268f72 | 2015-07-30 17:50:15 +0300 | [diff] [blame] | 41 | #include <linux/netdevice.h> |
Daniel Jurgens | 8f408ab | 2017-05-19 15:48:53 +0300 | [diff] [blame] | 42 | #include <linux/security.h> |
| 43 | #include <linux/notifier.h> |
Roland Dreier | b2cbae2 | 2011-05-20 11:46:11 -0700 | [diff] [blame] | 44 | #include <rdma/rdma_netlink.h> |
Matan Barak | 03db3a2 | 2015-07-30 18:33:26 +0300 | [diff] [blame] | 45 | #include <rdma/ib_addr.h> |
| 46 | #include <rdma/ib_cache.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | |
| 48 | #include "core_priv.h" |
| 49 | |
| 50 | MODULE_AUTHOR("Roland Dreier"); |
| 51 | MODULE_DESCRIPTION("core kernel InfiniBand API"); |
| 52 | MODULE_LICENSE("Dual BSD/GPL"); |
| 53 | |
| 54 | struct ib_client_data { |
| 55 | struct list_head list; |
| 56 | struct ib_client *client; |
| 57 | void * data; |
Haggai Eran | 7c1eb45 | 2015-07-30 17:50:14 +0300 | [diff] [blame] | 58 | /* The device or client is going down. Do not call client or device |
| 59 | * callbacks other than remove(). */ |
| 60 | bool going_down; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | }; |
| 62 | |
Christoph Hellwig | 14d3a3b | 2015-12-11 11:53:03 -0800 | [diff] [blame] | 63 | struct workqueue_struct *ib_comp_wq; |
Tejun Heo | f062671 | 2010-10-19 15:24:36 +0000 | [diff] [blame] | 64 | struct workqueue_struct *ib_wq; |
| 65 | EXPORT_SYMBOL_GPL(ib_wq); |
| 66 | |
Haggai Eran | 5aa44bb | 2015-07-30 17:50:13 +0300 | [diff] [blame] | 67 | /* The device_list and client_list contain devices and clients after their |
| 68 | * registration has completed, and the devices and clients are removed |
| 69 | * during unregistration. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | static LIST_HEAD(device_list); |
| 71 | static LIST_HEAD(client_list); |
| 72 | |
| 73 | /* |
Haggai Eran | 5aa44bb | 2015-07-30 17:50:13 +0300 | [diff] [blame] | 74 | * device_mutex and lists_rwsem protect access to both device_list and |
| 75 | * client_list. device_mutex protects writer access by device and client |
| 76 | * registration / de-registration. lists_rwsem protects reader access to |
| 77 | * these lists. Iterators of these lists must lock it for read, while updates |
| 78 | * to the lists must be done with a write lock. A special case is when the |
| 79 | * device_mutex is locked. In this case locking the lists for read access is |
| 80 | * not necessary as the device_mutex implies it. |
Haggai Eran | 7c1eb45 | 2015-07-30 17:50:14 +0300 | [diff] [blame] | 81 | * |
| 82 | * lists_rwsem also protects access to the client data list. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | */ |
Ingo Molnar | 95ed644 | 2006-01-13 14:51:39 -0800 | [diff] [blame] | 84 | static DEFINE_MUTEX(device_mutex); |
Haggai Eran | 5aa44bb | 2015-07-30 17:50:13 +0300 | [diff] [blame] | 85 | static DECLARE_RWSEM(lists_rwsem); |
| 86 | |
Daniel Jurgens | 8f408ab | 2017-05-19 15:48:53 +0300 | [diff] [blame] | 87 | static int ib_security_change(struct notifier_block *nb, unsigned long event, |
| 88 | void *lsm_data); |
| 89 | static void ib_policy_change_task(struct work_struct *work); |
| 90 | static DECLARE_WORK(ib_policy_change_work, ib_policy_change_task); |
| 91 | |
| 92 | static struct notifier_block ibdev_lsm_nb = { |
| 93 | .notifier_call = ib_security_change, |
| 94 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | |
| 96 | static int ib_device_check_mandatory(struct ib_device *device) |
| 97 | { |
| 98 | #define IB_MANDATORY_FUNC(x) { offsetof(struct ib_device, x), #x } |
| 99 | static const struct { |
| 100 | size_t offset; |
| 101 | char *name; |
| 102 | } mandatory_table[] = { |
| 103 | IB_MANDATORY_FUNC(query_device), |
| 104 | IB_MANDATORY_FUNC(query_port), |
| 105 | IB_MANDATORY_FUNC(query_pkey), |
| 106 | IB_MANDATORY_FUNC(query_gid), |
| 107 | IB_MANDATORY_FUNC(alloc_pd), |
| 108 | IB_MANDATORY_FUNC(dealloc_pd), |
| 109 | IB_MANDATORY_FUNC(create_ah), |
| 110 | IB_MANDATORY_FUNC(destroy_ah), |
| 111 | IB_MANDATORY_FUNC(create_qp), |
| 112 | IB_MANDATORY_FUNC(modify_qp), |
| 113 | IB_MANDATORY_FUNC(destroy_qp), |
| 114 | IB_MANDATORY_FUNC(post_send), |
| 115 | IB_MANDATORY_FUNC(post_recv), |
| 116 | IB_MANDATORY_FUNC(create_cq), |
| 117 | IB_MANDATORY_FUNC(destroy_cq), |
| 118 | IB_MANDATORY_FUNC(poll_cq), |
| 119 | IB_MANDATORY_FUNC(req_notify_cq), |
| 120 | IB_MANDATORY_FUNC(get_dma_mr), |
Ira Weiny | 7738613 | 2015-05-13 20:02:58 -0400 | [diff] [blame] | 121 | IB_MANDATORY_FUNC(dereg_mr), |
| 122 | IB_MANDATORY_FUNC(get_port_immutable) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | }; |
| 124 | int i; |
| 125 | |
Ahmed S. Darwish | 9a6b090 | 2007-02-06 18:07:25 +0200 | [diff] [blame] | 126 | for (i = 0; i < ARRAY_SIZE(mandatory_table); ++i) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | if (!*(void **) ((void *) device + mandatory_table[i].offset)) { |
Parav Pandit | aba25a3e | 2016-03-02 00:50:29 +0530 | [diff] [blame] | 128 | pr_warn("Device %s is missing mandatory function %s\n", |
| 129 | device->name, mandatory_table[i].name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | return -EINVAL; |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | return 0; |
| 135 | } |
| 136 | |
| 137 | static struct ib_device *__ib_device_get_by_name(const char *name) |
| 138 | { |
| 139 | struct ib_device *device; |
| 140 | |
| 141 | list_for_each_entry(device, &device_list, core_list) |
| 142 | if (!strncmp(name, device->name, IB_DEVICE_NAME_MAX)) |
| 143 | return device; |
| 144 | |
| 145 | return NULL; |
| 146 | } |
| 147 | |
| 148 | |
| 149 | static int alloc_name(char *name) |
| 150 | { |
Roland Dreier | 65d470b | 2007-10-09 19:59:04 -0700 | [diff] [blame] | 151 | unsigned long *inuse; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | char buf[IB_DEVICE_NAME_MAX]; |
| 153 | struct ib_device *device; |
| 154 | int i; |
| 155 | |
Roland Dreier | 65d470b | 2007-10-09 19:59:04 -0700 | [diff] [blame] | 156 | inuse = (unsigned long *) get_zeroed_page(GFP_KERNEL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | if (!inuse) |
| 158 | return -ENOMEM; |
| 159 | |
| 160 | list_for_each_entry(device, &device_list, core_list) { |
| 161 | if (!sscanf(device->name, name, &i)) |
| 162 | continue; |
| 163 | if (i < 0 || i >= PAGE_SIZE * 8) |
| 164 | continue; |
| 165 | snprintf(buf, sizeof buf, name, i); |
| 166 | if (!strncmp(buf, device->name, IB_DEVICE_NAME_MAX)) |
| 167 | set_bit(i, inuse); |
| 168 | } |
| 169 | |
| 170 | i = find_first_zero_bit(inuse, PAGE_SIZE * 8); |
| 171 | free_page((unsigned long) inuse); |
| 172 | snprintf(buf, sizeof buf, name, i); |
| 173 | |
| 174 | if (__ib_device_get_by_name(buf)) |
| 175 | return -ENFILE; |
| 176 | |
| 177 | strlcpy(name, buf, IB_DEVICE_NAME_MAX); |
| 178 | return 0; |
| 179 | } |
| 180 | |
Jason Gunthorpe | 55aeed0 | 2015-08-04 15:23:34 -0600 | [diff] [blame] | 181 | static void ib_device_release(struct device *device) |
| 182 | { |
| 183 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
| 184 | |
Parav Pandit | 4be3a4f | 2017-03-19 10:55:55 +0200 | [diff] [blame] | 185 | WARN_ON(dev->reg_state == IB_DEV_REGISTERED); |
| 186 | if (dev->reg_state == IB_DEV_UNREGISTERED) { |
| 187 | /* |
| 188 | * In IB_DEV_UNINITIALIZED state, cache or port table |
| 189 | * is not even created. Free cache and port table only when |
| 190 | * device reaches UNREGISTERED state. |
| 191 | */ |
| 192 | ib_cache_release_one(dev); |
| 193 | kfree(dev->port_immutable); |
| 194 | } |
Jason Gunthorpe | 55aeed0 | 2015-08-04 15:23:34 -0600 | [diff] [blame] | 195 | kfree(dev); |
| 196 | } |
| 197 | |
| 198 | static int ib_device_uevent(struct device *device, |
| 199 | struct kobj_uevent_env *env) |
| 200 | { |
| 201 | struct ib_device *dev = container_of(device, struct ib_device, dev); |
| 202 | |
| 203 | if (add_uevent_var(env, "NAME=%s", dev->name)) |
| 204 | return -ENOMEM; |
| 205 | |
| 206 | /* |
| 207 | * It would be nice to pass the node GUID with the event... |
| 208 | */ |
| 209 | |
| 210 | return 0; |
| 211 | } |
| 212 | |
| 213 | static struct class ib_class = { |
| 214 | .name = "infiniband", |
| 215 | .dev_release = ib_device_release, |
| 216 | .dev_uevent = ib_device_uevent, |
| 217 | }; |
| 218 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | /** |
| 220 | * ib_alloc_device - allocate an IB device struct |
| 221 | * @size:size of structure to allocate |
| 222 | * |
| 223 | * Low-level drivers should use ib_alloc_device() to allocate &struct |
| 224 | * ib_device. @size is the size of the structure to be allocated, |
| 225 | * including any private data used by the low-level driver. |
| 226 | * ib_dealloc_device() must be used to free structures allocated with |
| 227 | * ib_alloc_device(). |
| 228 | */ |
| 229 | struct ib_device *ib_alloc_device(size_t size) |
| 230 | { |
Jason Gunthorpe | 55aeed0 | 2015-08-04 15:23:34 -0600 | [diff] [blame] | 231 | struct ib_device *device; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | |
Jason Gunthorpe | 55aeed0 | 2015-08-04 15:23:34 -0600 | [diff] [blame] | 233 | if (WARN_ON(size < sizeof(struct ib_device))) |
| 234 | return NULL; |
| 235 | |
| 236 | device = kzalloc(size, GFP_KERNEL); |
| 237 | if (!device) |
| 238 | return NULL; |
| 239 | |
| 240 | device->dev.class = &ib_class; |
| 241 | device_initialize(&device->dev); |
| 242 | |
| 243 | dev_set_drvdata(&device->dev, device); |
| 244 | |
| 245 | INIT_LIST_HEAD(&device->event_handler_list); |
| 246 | spin_lock_init(&device->event_handler_lock); |
| 247 | spin_lock_init(&device->client_data_lock); |
| 248 | INIT_LIST_HEAD(&device->client_data_list); |
| 249 | INIT_LIST_HEAD(&device->port_list); |
| 250 | |
| 251 | return device; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | } |
| 253 | EXPORT_SYMBOL(ib_alloc_device); |
| 254 | |
| 255 | /** |
| 256 | * ib_dealloc_device - free an IB device struct |
| 257 | * @device:structure to free |
| 258 | * |
| 259 | * Free a structure allocated with ib_alloc_device(). |
| 260 | */ |
| 261 | void ib_dealloc_device(struct ib_device *device) |
| 262 | { |
Jason Gunthorpe | 55aeed0 | 2015-08-04 15:23:34 -0600 | [diff] [blame] | 263 | WARN_ON(device->reg_state != IB_DEV_UNREGISTERED && |
| 264 | device->reg_state != IB_DEV_UNINITIALIZED); |
Roland Dreier | 9206dff | 2009-02-25 13:27:46 -0800 | [diff] [blame] | 265 | kobject_put(&device->dev.kobj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | } |
| 267 | EXPORT_SYMBOL(ib_dealloc_device); |
| 268 | |
| 269 | static int add_client_context(struct ib_device *device, struct ib_client *client) |
| 270 | { |
| 271 | struct ib_client_data *context; |
| 272 | unsigned long flags; |
| 273 | |
| 274 | context = kmalloc(sizeof *context, GFP_KERNEL); |
Leon Romanovsky | a0b3455 | 2016-11-03 16:44:10 +0200 | [diff] [blame] | 275 | if (!context) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | |
| 278 | context->client = client; |
| 279 | context->data = NULL; |
Haggai Eran | 7c1eb45 | 2015-07-30 17:50:14 +0300 | [diff] [blame] | 280 | context->going_down = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | |
Haggai Eran | 7c1eb45 | 2015-07-30 17:50:14 +0300 | [diff] [blame] | 282 | down_write(&lists_rwsem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | spin_lock_irqsave(&device->client_data_lock, flags); |
| 284 | list_add(&context->list, &device->client_data_list); |
| 285 | spin_unlock_irqrestore(&device->client_data_lock, flags); |
Haggai Eran | 7c1eb45 | 2015-07-30 17:50:14 +0300 | [diff] [blame] | 286 | up_write(&lists_rwsem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | |
| 288 | return 0; |
| 289 | } |
| 290 | |
Ira Weiny | 337877a | 2015-06-06 14:38:29 -0400 | [diff] [blame] | 291 | static int verify_immutable(const struct ib_device *dev, u8 port) |
| 292 | { |
| 293 | return WARN_ON(!rdma_cap_ib_mad(dev, port) && |
| 294 | rdma_max_mad_size(dev, port) != 0); |
| 295 | } |
| 296 | |
Ira Weiny | 7738613 | 2015-05-13 20:02:58 -0400 | [diff] [blame] | 297 | static int read_port_immutable(struct ib_device *device) |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 298 | { |
Jason Gunthorpe | 55aeed0 | 2015-08-04 15:23:34 -0600 | [diff] [blame] | 299 | int ret; |
Ira Weiny | 7738613 | 2015-05-13 20:02:58 -0400 | [diff] [blame] | 300 | u8 start_port = rdma_start_port(device); |
| 301 | u8 end_port = rdma_end_port(device); |
| 302 | u8 port; |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 303 | |
Ira Weiny | 7738613 | 2015-05-13 20:02:58 -0400 | [diff] [blame] | 304 | /** |
| 305 | * device->port_immutable is indexed directly by the port number to make |
| 306 | * access to this data as efficient as possible. |
| 307 | * |
| 308 | * Therefore port_immutable is declared as a 1 based array with |
| 309 | * potential empty slots at the beginning. |
| 310 | */ |
| 311 | device->port_immutable = kzalloc(sizeof(*device->port_immutable) |
| 312 | * (end_port + 1), |
| 313 | GFP_KERNEL); |
| 314 | if (!device->port_immutable) |
Jason Gunthorpe | 55aeed0 | 2015-08-04 15:23:34 -0600 | [diff] [blame] | 315 | return -ENOMEM; |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 316 | |
Ira Weiny | 7738613 | 2015-05-13 20:02:58 -0400 | [diff] [blame] | 317 | for (port = start_port; port <= end_port; ++port) { |
| 318 | ret = device->get_port_immutable(device, port, |
| 319 | &device->port_immutable[port]); |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 320 | if (ret) |
Jason Gunthorpe | 55aeed0 | 2015-08-04 15:23:34 -0600 | [diff] [blame] | 321 | return ret; |
Ira Weiny | 337877a | 2015-06-06 14:38:29 -0400 | [diff] [blame] | 322 | |
Jason Gunthorpe | 55aeed0 | 2015-08-04 15:23:34 -0600 | [diff] [blame] | 323 | if (verify_immutable(device, port)) |
| 324 | return -EINVAL; |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 325 | } |
Jason Gunthorpe | 55aeed0 | 2015-08-04 15:23:34 -0600 | [diff] [blame] | 326 | return 0; |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 327 | } |
| 328 | |
Ira Weiny | 5fa76c2 | 2016-06-15 02:21:56 -0400 | [diff] [blame] | 329 | void ib_get_device_fw_str(struct ib_device *dev, char *str, size_t str_len) |
| 330 | { |
| 331 | if (dev->get_dev_fw_str) |
| 332 | dev->get_dev_fw_str(dev, str, str_len); |
| 333 | else |
| 334 | str[0] = '\0'; |
| 335 | } |
| 336 | EXPORT_SYMBOL(ib_get_device_fw_str); |
| 337 | |
Daniel Jurgens | d291f1a | 2017-05-19 15:48:52 +0300 | [diff] [blame] | 338 | static int setup_port_pkey_list(struct ib_device *device) |
| 339 | { |
| 340 | int i; |
| 341 | |
| 342 | /** |
| 343 | * device->port_pkey_list is indexed directly by the port number, |
| 344 | * Therefore it is declared as a 1 based array with potential empty |
| 345 | * slots at the beginning. |
| 346 | */ |
| 347 | device->port_pkey_list = kcalloc(rdma_end_port(device) + 1, |
| 348 | sizeof(*device->port_pkey_list), |
| 349 | GFP_KERNEL); |
| 350 | |
| 351 | if (!device->port_pkey_list) |
| 352 | return -ENOMEM; |
| 353 | |
| 354 | for (i = 0; i < (rdma_end_port(device) + 1); i++) { |
| 355 | spin_lock_init(&device->port_pkey_list[i].list_lock); |
| 356 | INIT_LIST_HEAD(&device->port_pkey_list[i].pkey_list); |
| 357 | } |
| 358 | |
| 359 | return 0; |
| 360 | } |
| 361 | |
Daniel Jurgens | 8f408ab | 2017-05-19 15:48:53 +0300 | [diff] [blame] | 362 | static void ib_policy_change_task(struct work_struct *work) |
| 363 | { |
| 364 | struct ib_device *dev; |
| 365 | |
| 366 | down_read(&lists_rwsem); |
| 367 | list_for_each_entry(dev, &device_list, core_list) { |
| 368 | int i; |
| 369 | |
| 370 | for (i = rdma_start_port(dev); i <= rdma_end_port(dev); i++) { |
| 371 | u64 sp; |
| 372 | int ret = ib_get_cached_subnet_prefix(dev, |
| 373 | i, |
| 374 | &sp); |
| 375 | |
| 376 | WARN_ONCE(ret, |
| 377 | "ib_get_cached_subnet_prefix err: %d, this should never happen here\n", |
| 378 | ret); |
Daniel Jurgens | a750cfd | 2017-07-05 16:15:21 +0300 | [diff] [blame] | 379 | if (!ret) |
| 380 | ib_security_cache_change(dev, i, sp); |
Daniel Jurgens | 8f408ab | 2017-05-19 15:48:53 +0300 | [diff] [blame] | 381 | } |
| 382 | } |
| 383 | up_read(&lists_rwsem); |
| 384 | } |
| 385 | |
| 386 | static int ib_security_change(struct notifier_block *nb, unsigned long event, |
| 387 | void *lsm_data) |
| 388 | { |
| 389 | if (event != LSM_POLICY_CHANGE) |
| 390 | return NOTIFY_DONE; |
| 391 | |
| 392 | schedule_work(&ib_policy_change_work); |
| 393 | |
| 394 | return NOTIFY_OK; |
| 395 | } |
| 396 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | /** |
| 398 | * ib_register_device - Register an IB device with IB core |
| 399 | * @device:Device to register |
| 400 | * |
| 401 | * Low-level drivers use ib_register_device() to register their |
| 402 | * devices with the IB core. All registered clients will receive a |
| 403 | * callback for each device that is added. @device must be allocated |
| 404 | * with ib_alloc_device(). |
| 405 | */ |
Ralph Campbell | 9a6edb6 | 2010-05-06 17:03:25 -0700 | [diff] [blame] | 406 | int ib_register_device(struct ib_device *device, |
| 407 | int (*port_callback)(struct ib_device *, |
| 408 | u8, struct kobject *)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | { |
| 410 | int ret; |
Doug Ledford | b8071ad | 2015-08-15 10:16:14 -0400 | [diff] [blame] | 411 | struct ib_client *client; |
Ira Weiny | 3e153a9 | 2015-12-18 10:59:44 +0200 | [diff] [blame] | 412 | struct ib_udata uhw = {.outlen = 0, .inlen = 0}; |
Bart Van Assche | 99db949 | 2017-01-20 13:04:36 -0800 | [diff] [blame] | 413 | struct device *parent = device->dev.parent; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | |
Bart Van Assche | 99db949 | 2017-01-20 13:04:36 -0800 | [diff] [blame] | 415 | WARN_ON_ONCE(!parent); |
Bart Van Assche | 0957c29 | 2017-03-07 22:56:53 +0000 | [diff] [blame] | 416 | WARN_ON_ONCE(device->dma_device); |
| 417 | if (device->dev.dma_ops) { |
| 418 | /* |
| 419 | * The caller provided custom DMA operations. Copy the |
| 420 | * DMA-related fields that are used by e.g. dma_alloc_coherent() |
| 421 | * into device->dev. |
| 422 | */ |
| 423 | device->dma_device = &device->dev; |
| 424 | if (!device->dev.dma_mask) |
| 425 | device->dev.dma_mask = parent->dma_mask; |
| 426 | if (!device->dev.coherent_dma_mask) |
| 427 | device->dev.coherent_dma_mask = |
| 428 | parent->coherent_dma_mask; |
| 429 | } else { |
| 430 | /* |
| 431 | * The caller did not provide custom DMA operations. Use the |
| 432 | * DMA mapping operations of the parent device. |
| 433 | */ |
| 434 | device->dma_device = parent; |
| 435 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | |
Ingo Molnar | 95ed644 | 2006-01-13 14:51:39 -0800 | [diff] [blame] | 437 | mutex_lock(&device_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 438 | |
| 439 | if (strchr(device->name, '%')) { |
| 440 | ret = alloc_name(device->name); |
| 441 | if (ret) |
| 442 | goto out; |
| 443 | } |
| 444 | |
| 445 | if (ib_device_check_mandatory(device)) { |
| 446 | ret = -EINVAL; |
| 447 | goto out; |
| 448 | } |
| 449 | |
Ira Weiny | 7738613 | 2015-05-13 20:02:58 -0400 | [diff] [blame] | 450 | ret = read_port_immutable(device); |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 451 | if (ret) { |
Parav Pandit | aba25a3e | 2016-03-02 00:50:29 +0530 | [diff] [blame] | 452 | pr_warn("Couldn't create per port immutable data %s\n", |
| 453 | device->name); |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 454 | goto out; |
| 455 | } |
| 456 | |
Daniel Jurgens | d291f1a | 2017-05-19 15:48:52 +0300 | [diff] [blame] | 457 | ret = setup_port_pkey_list(device); |
| 458 | if (ret) { |
| 459 | pr_warn("Couldn't create per port_pkey_list\n"); |
| 460 | goto out; |
| 461 | } |
| 462 | |
Matan Barak | 03db3a2 | 2015-07-30 18:33:26 +0300 | [diff] [blame] | 463 | ret = ib_cache_setup_one(device); |
| 464 | if (ret) { |
Parav Pandit | aba25a3e | 2016-03-02 00:50:29 +0530 | [diff] [blame] | 465 | pr_warn("Couldn't set up InfiniBand P_Key/GID cache\n"); |
Parav Pandit | 4be3a4f | 2017-03-19 10:55:55 +0200 | [diff] [blame] | 466 | goto port_cleanup; |
Matan Barak | 03db3a2 | 2015-07-30 18:33:26 +0300 | [diff] [blame] | 467 | } |
| 468 | |
Parav Pandit | 43579b5 | 2017-01-10 00:02:14 +0000 | [diff] [blame] | 469 | ret = ib_device_register_rdmacg(device); |
| 470 | if (ret) { |
| 471 | pr_warn("Couldn't register device with rdma cgroup\n"); |
Parav Pandit | 4be3a4f | 2017-03-19 10:55:55 +0200 | [diff] [blame] | 472 | goto cache_cleanup; |
Parav Pandit | 43579b5 | 2017-01-10 00:02:14 +0000 | [diff] [blame] | 473 | } |
| 474 | |
Ira Weiny | 3e153a9 | 2015-12-18 10:59:44 +0200 | [diff] [blame] | 475 | memset(&device->attrs, 0, sizeof(device->attrs)); |
| 476 | ret = device->query_device(device, &device->attrs, &uhw); |
| 477 | if (ret) { |
Parav Pandit | aba25a3e | 2016-03-02 00:50:29 +0530 | [diff] [blame] | 478 | pr_warn("Couldn't query the device attributes\n"); |
Parav Pandit | 4be3a4f | 2017-03-19 10:55:55 +0200 | [diff] [blame] | 479 | goto cache_cleanup; |
Ira Weiny | 3e153a9 | 2015-12-18 10:59:44 +0200 | [diff] [blame] | 480 | } |
| 481 | |
Ralph Campbell | 9a6edb6 | 2010-05-06 17:03:25 -0700 | [diff] [blame] | 482 | ret = ib_device_register_sysfs(device, port_callback); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | if (ret) { |
Parav Pandit | aba25a3e | 2016-03-02 00:50:29 +0530 | [diff] [blame] | 484 | pr_warn("Couldn't register device %s with driver model\n", |
| 485 | device->name); |
Parav Pandit | 4be3a4f | 2017-03-19 10:55:55 +0200 | [diff] [blame] | 486 | goto cache_cleanup; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | } |
| 488 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | device->reg_state = IB_DEV_REGISTERED; |
| 490 | |
Doug Ledford | b8071ad | 2015-08-15 10:16:14 -0400 | [diff] [blame] | 491 | list_for_each_entry(client, &client_list, list) |
| 492 | if (client->add && !add_client_context(device, client)) |
| 493 | client->add(device); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 494 | |
Haggai Eran | 5aa44bb | 2015-07-30 17:50:13 +0300 | [diff] [blame] | 495 | down_write(&lists_rwsem); |
| 496 | list_add_tail(&device->core_list, &device_list); |
| 497 | up_write(&lists_rwsem); |
Parav Pandit | 4be3a4f | 2017-03-19 10:55:55 +0200 | [diff] [blame] | 498 | mutex_unlock(&device_mutex); |
| 499 | return 0; |
| 500 | |
| 501 | cache_cleanup: |
| 502 | ib_cache_cleanup_one(device); |
| 503 | ib_cache_release_one(device); |
| 504 | port_cleanup: |
| 505 | kfree(device->port_immutable); |
Haggai Eran | 5aa44bb | 2015-07-30 17:50:13 +0300 | [diff] [blame] | 506 | out: |
Ingo Molnar | 95ed644 | 2006-01-13 14:51:39 -0800 | [diff] [blame] | 507 | mutex_unlock(&device_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 508 | return ret; |
| 509 | } |
| 510 | EXPORT_SYMBOL(ib_register_device); |
| 511 | |
| 512 | /** |
| 513 | * ib_unregister_device - Unregister an IB device |
| 514 | * @device:Device to unregister |
| 515 | * |
| 516 | * Unregister an IB device. All clients will receive a remove callback. |
| 517 | */ |
| 518 | void ib_unregister_device(struct ib_device *device) |
| 519 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | struct ib_client_data *context, *tmp; |
| 521 | unsigned long flags; |
| 522 | |
Ingo Molnar | 95ed644 | 2006-01-13 14:51:39 -0800 | [diff] [blame] | 523 | mutex_lock(&device_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | |
Haggai Eran | 5aa44bb | 2015-07-30 17:50:13 +0300 | [diff] [blame] | 525 | down_write(&lists_rwsem); |
| 526 | list_del(&device->core_list); |
Haggai Eran | 7c1eb45 | 2015-07-30 17:50:14 +0300 | [diff] [blame] | 527 | spin_lock_irqsave(&device->client_data_lock, flags); |
| 528 | list_for_each_entry_safe(context, tmp, &device->client_data_list, list) |
| 529 | context->going_down = true; |
| 530 | spin_unlock_irqrestore(&device->client_data_lock, flags); |
| 531 | downgrade_write(&lists_rwsem); |
Haggai Eran | 5aa44bb | 2015-07-30 17:50:13 +0300 | [diff] [blame] | 532 | |
Haggai Eran | 7c1eb45 | 2015-07-30 17:50:14 +0300 | [diff] [blame] | 533 | list_for_each_entry_safe(context, tmp, &device->client_data_list, |
| 534 | list) { |
| 535 | if (context->client->remove) |
| 536 | context->client->remove(device, context->data); |
| 537 | } |
| 538 | up_read(&lists_rwsem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 539 | |
Parav Pandit | 43579b5 | 2017-01-10 00:02:14 +0000 | [diff] [blame] | 540 | ib_device_unregister_rdmacg(device); |
Roland Dreier | 9206dff | 2009-02-25 13:27:46 -0800 | [diff] [blame] | 541 | ib_device_unregister_sysfs(device); |
Shiraz Saleem | 06f8174 | 2017-07-17 14:03:50 -0500 | [diff] [blame] | 542 | |
| 543 | mutex_unlock(&device_mutex); |
| 544 | |
Matan Barak | 03db3a2 | 2015-07-30 18:33:26 +0300 | [diff] [blame] | 545 | ib_cache_cleanup_one(device); |
Roland Dreier | 9206dff | 2009-02-25 13:27:46 -0800 | [diff] [blame] | 546 | |
Daniel Jurgens | d291f1a | 2017-05-19 15:48:52 +0300 | [diff] [blame] | 547 | ib_security_destroy_port_pkey_list(device); |
| 548 | kfree(device->port_pkey_list); |
| 549 | |
Haggai Eran | 7c1eb45 | 2015-07-30 17:50:14 +0300 | [diff] [blame] | 550 | down_write(&lists_rwsem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | spin_lock_irqsave(&device->client_data_lock, flags); |
| 552 | list_for_each_entry_safe(context, tmp, &device->client_data_list, list) |
| 553 | kfree(context); |
| 554 | spin_unlock_irqrestore(&device->client_data_lock, flags); |
Haggai Eran | 7c1eb45 | 2015-07-30 17:50:14 +0300 | [diff] [blame] | 555 | up_write(&lists_rwsem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 556 | |
| 557 | device->reg_state = IB_DEV_UNREGISTERED; |
| 558 | } |
| 559 | EXPORT_SYMBOL(ib_unregister_device); |
| 560 | |
| 561 | /** |
| 562 | * ib_register_client - Register an IB client |
| 563 | * @client:Client to register |
| 564 | * |
| 565 | * Upper level users of the IB drivers can use ib_register_client() to |
| 566 | * register callbacks for IB device addition and removal. When an IB |
| 567 | * device is added, each registered client's add method will be called |
| 568 | * (in the order the clients were registered), and when a device is |
| 569 | * removed, each client's remove method will be called (in the reverse |
| 570 | * order that clients were registered). In addition, when |
| 571 | * ib_register_client() is called, the client will receive an add |
| 572 | * callback for all devices already registered. |
| 573 | */ |
| 574 | int ib_register_client(struct ib_client *client) |
| 575 | { |
| 576 | struct ib_device *device; |
| 577 | |
Ingo Molnar | 95ed644 | 2006-01-13 14:51:39 -0800 | [diff] [blame] | 578 | mutex_lock(&device_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 580 | list_for_each_entry(device, &device_list, core_list) |
| 581 | if (client->add && !add_client_context(device, client)) |
| 582 | client->add(device); |
| 583 | |
Haggai Eran | 5aa44bb | 2015-07-30 17:50:13 +0300 | [diff] [blame] | 584 | down_write(&lists_rwsem); |
| 585 | list_add_tail(&client->list, &client_list); |
| 586 | up_write(&lists_rwsem); |
| 587 | |
Ingo Molnar | 95ed644 | 2006-01-13 14:51:39 -0800 | [diff] [blame] | 588 | mutex_unlock(&device_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 589 | |
| 590 | return 0; |
| 591 | } |
| 592 | EXPORT_SYMBOL(ib_register_client); |
| 593 | |
| 594 | /** |
| 595 | * ib_unregister_client - Unregister an IB client |
| 596 | * @client:Client to unregister |
| 597 | * |
| 598 | * Upper level users use ib_unregister_client() to remove their client |
| 599 | * registration. When ib_unregister_client() is called, the client |
| 600 | * will receive a remove callback for each IB device still registered. |
| 601 | */ |
| 602 | void ib_unregister_client(struct ib_client *client) |
| 603 | { |
| 604 | struct ib_client_data *context, *tmp; |
| 605 | struct ib_device *device; |
| 606 | unsigned long flags; |
| 607 | |
Ingo Molnar | 95ed644 | 2006-01-13 14:51:39 -0800 | [diff] [blame] | 608 | mutex_lock(&device_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 609 | |
Haggai Eran | 5aa44bb | 2015-07-30 17:50:13 +0300 | [diff] [blame] | 610 | down_write(&lists_rwsem); |
| 611 | list_del(&client->list); |
| 612 | up_write(&lists_rwsem); |
| 613 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | list_for_each_entry(device, &device_list, core_list) { |
Haggai Eran | 7c1eb45 | 2015-07-30 17:50:14 +0300 | [diff] [blame] | 615 | struct ib_client_data *found_context = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 616 | |
Haggai Eran | 7c1eb45 | 2015-07-30 17:50:14 +0300 | [diff] [blame] | 617 | down_write(&lists_rwsem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | spin_lock_irqsave(&device->client_data_lock, flags); |
| 619 | list_for_each_entry_safe(context, tmp, &device->client_data_list, list) |
| 620 | if (context->client == client) { |
Haggai Eran | 7c1eb45 | 2015-07-30 17:50:14 +0300 | [diff] [blame] | 621 | context->going_down = true; |
| 622 | found_context = context; |
| 623 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 624 | } |
| 625 | spin_unlock_irqrestore(&device->client_data_lock, flags); |
Haggai Eran | 7c1eb45 | 2015-07-30 17:50:14 +0300 | [diff] [blame] | 626 | up_write(&lists_rwsem); |
| 627 | |
| 628 | if (client->remove) |
| 629 | client->remove(device, found_context ? |
| 630 | found_context->data : NULL); |
| 631 | |
| 632 | if (!found_context) { |
| 633 | pr_warn("No client context found for %s/%s\n", |
| 634 | device->name, client->name); |
| 635 | continue; |
| 636 | } |
| 637 | |
| 638 | down_write(&lists_rwsem); |
| 639 | spin_lock_irqsave(&device->client_data_lock, flags); |
| 640 | list_del(&found_context->list); |
| 641 | kfree(found_context); |
| 642 | spin_unlock_irqrestore(&device->client_data_lock, flags); |
| 643 | up_write(&lists_rwsem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 644 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 645 | |
Ingo Molnar | 95ed644 | 2006-01-13 14:51:39 -0800 | [diff] [blame] | 646 | mutex_unlock(&device_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | } |
| 648 | EXPORT_SYMBOL(ib_unregister_client); |
| 649 | |
| 650 | /** |
| 651 | * ib_get_client_data - Get IB client context |
| 652 | * @device:Device to get context for |
| 653 | * @client:Client to get context for |
| 654 | * |
| 655 | * ib_get_client_data() returns client context set with |
| 656 | * ib_set_client_data(). |
| 657 | */ |
| 658 | void *ib_get_client_data(struct ib_device *device, struct ib_client *client) |
| 659 | { |
| 660 | struct ib_client_data *context; |
| 661 | void *ret = NULL; |
| 662 | unsigned long flags; |
| 663 | |
| 664 | spin_lock_irqsave(&device->client_data_lock, flags); |
| 665 | list_for_each_entry(context, &device->client_data_list, list) |
| 666 | if (context->client == client) { |
| 667 | ret = context->data; |
| 668 | break; |
| 669 | } |
| 670 | spin_unlock_irqrestore(&device->client_data_lock, flags); |
| 671 | |
| 672 | return ret; |
| 673 | } |
| 674 | EXPORT_SYMBOL(ib_get_client_data); |
| 675 | |
| 676 | /** |
Krishna Kumar | 9cd330d | 2006-09-22 15:22:58 -0700 | [diff] [blame] | 677 | * ib_set_client_data - Set IB client context |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 678 | * @device:Device to set context for |
| 679 | * @client:Client to set context for |
| 680 | * @data:Context to set |
| 681 | * |
| 682 | * ib_set_client_data() sets client context that can be retrieved with |
| 683 | * ib_get_client_data(). |
| 684 | */ |
| 685 | void ib_set_client_data(struct ib_device *device, struct ib_client *client, |
| 686 | void *data) |
| 687 | { |
| 688 | struct ib_client_data *context; |
| 689 | unsigned long flags; |
| 690 | |
| 691 | spin_lock_irqsave(&device->client_data_lock, flags); |
| 692 | list_for_each_entry(context, &device->client_data_list, list) |
| 693 | if (context->client == client) { |
| 694 | context->data = data; |
| 695 | goto out; |
| 696 | } |
| 697 | |
Parav Pandit | aba25a3e | 2016-03-02 00:50:29 +0530 | [diff] [blame] | 698 | pr_warn("No client context found for %s/%s\n", |
| 699 | device->name, client->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 700 | |
| 701 | out: |
| 702 | spin_unlock_irqrestore(&device->client_data_lock, flags); |
| 703 | } |
| 704 | EXPORT_SYMBOL(ib_set_client_data); |
| 705 | |
| 706 | /** |
| 707 | * ib_register_event_handler - Register an IB event handler |
| 708 | * @event_handler:Handler to register |
| 709 | * |
| 710 | * ib_register_event_handler() registers an event handler that will be |
| 711 | * called back when asynchronous IB events occur (as defined in |
| 712 | * chapter 11 of the InfiniBand Architecture Specification). This |
| 713 | * callback may occur in interrupt context. |
| 714 | */ |
| 715 | int ib_register_event_handler (struct ib_event_handler *event_handler) |
| 716 | { |
| 717 | unsigned long flags; |
| 718 | |
| 719 | spin_lock_irqsave(&event_handler->device->event_handler_lock, flags); |
| 720 | list_add_tail(&event_handler->list, |
| 721 | &event_handler->device->event_handler_list); |
| 722 | spin_unlock_irqrestore(&event_handler->device->event_handler_lock, flags); |
| 723 | |
| 724 | return 0; |
| 725 | } |
| 726 | EXPORT_SYMBOL(ib_register_event_handler); |
| 727 | |
| 728 | /** |
| 729 | * ib_unregister_event_handler - Unregister an event handler |
| 730 | * @event_handler:Handler to unregister |
| 731 | * |
| 732 | * Unregister an event handler registered with |
| 733 | * ib_register_event_handler(). |
| 734 | */ |
| 735 | int ib_unregister_event_handler(struct ib_event_handler *event_handler) |
| 736 | { |
| 737 | unsigned long flags; |
| 738 | |
| 739 | spin_lock_irqsave(&event_handler->device->event_handler_lock, flags); |
| 740 | list_del(&event_handler->list); |
| 741 | spin_unlock_irqrestore(&event_handler->device->event_handler_lock, flags); |
| 742 | |
| 743 | return 0; |
| 744 | } |
| 745 | EXPORT_SYMBOL(ib_unregister_event_handler); |
| 746 | |
| 747 | /** |
| 748 | * ib_dispatch_event - Dispatch an asynchronous event |
| 749 | * @event:Event to dispatch |
| 750 | * |
| 751 | * Low-level drivers must call ib_dispatch_event() to dispatch the |
| 752 | * event to all registered event handlers when an asynchronous event |
| 753 | * occurs. |
| 754 | */ |
| 755 | void ib_dispatch_event(struct ib_event *event) |
| 756 | { |
| 757 | unsigned long flags; |
| 758 | struct ib_event_handler *handler; |
| 759 | |
| 760 | spin_lock_irqsave(&event->device->event_handler_lock, flags); |
| 761 | |
| 762 | list_for_each_entry(handler, &event->device->event_handler_list, list) |
| 763 | handler->handler(handler, event); |
| 764 | |
| 765 | spin_unlock_irqrestore(&event->device->event_handler_lock, flags); |
| 766 | } |
| 767 | EXPORT_SYMBOL(ib_dispatch_event); |
| 768 | |
| 769 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 770 | * ib_query_port - Query IB port attributes |
| 771 | * @device:Device to query |
| 772 | * @port_num:Port number to query |
| 773 | * @port_attr:Port attributes |
| 774 | * |
| 775 | * ib_query_port() returns the attributes of a port through the |
| 776 | * @port_attr pointer. |
| 777 | */ |
| 778 | int ib_query_port(struct ib_device *device, |
| 779 | u8 port_num, |
| 780 | struct ib_port_attr *port_attr) |
| 781 | { |
Eli Cohen | fad61ad | 2016-03-11 22:58:36 +0200 | [diff] [blame] | 782 | union ib_gid gid; |
| 783 | int err; |
| 784 | |
Yuval Shaia | 24dc831 | 2017-01-25 18:41:37 +0200 | [diff] [blame] | 785 | if (!rdma_is_port_valid(device, port_num)) |
Roland Dreier | 116c007 | 2005-10-03 09:32:33 -0700 | [diff] [blame] | 786 | return -EINVAL; |
| 787 | |
Eli Cohen | fad61ad | 2016-03-11 22:58:36 +0200 | [diff] [blame] | 788 | memset(port_attr, 0, sizeof(*port_attr)); |
| 789 | err = device->query_port(device, port_num, port_attr); |
| 790 | if (err || port_attr->subnet_prefix) |
| 791 | return err; |
| 792 | |
Eli Cohen | d701246 | 2016-06-04 15:15:18 +0300 | [diff] [blame] | 793 | if (rdma_port_get_link_layer(device, port_num) != IB_LINK_LAYER_INFINIBAND) |
| 794 | return 0; |
| 795 | |
Eli Cohen | fad61ad | 2016-03-11 22:58:36 +0200 | [diff] [blame] | 796 | err = ib_query_gid(device, port_num, 0, &gid, NULL); |
| 797 | if (err) |
| 798 | return err; |
| 799 | |
| 800 | port_attr->subnet_prefix = be64_to_cpu(gid.global.subnet_prefix); |
| 801 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 802 | } |
| 803 | EXPORT_SYMBOL(ib_query_port); |
| 804 | |
| 805 | /** |
| 806 | * ib_query_gid - Get GID table entry |
| 807 | * @device:Device to query |
| 808 | * @port_num:Port number to query |
| 809 | * @index:GID table index to query |
| 810 | * @gid:Returned GID |
Matan Barak | 55ee3ab | 2015-10-15 18:38:45 +0300 | [diff] [blame] | 811 | * @attr: Returned GID attributes related to this GID index (only in RoCE). |
| 812 | * NULL means ignore. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 813 | * |
| 814 | * ib_query_gid() fetches the specified GID table entry. |
| 815 | */ |
| 816 | int ib_query_gid(struct ib_device *device, |
Matan Barak | 55ee3ab | 2015-10-15 18:38:45 +0300 | [diff] [blame] | 817 | u8 port_num, int index, union ib_gid *gid, |
| 818 | struct ib_gid_attr *attr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | { |
Matan Barak | 03db3a2 | 2015-07-30 18:33:26 +0300 | [diff] [blame] | 820 | if (rdma_cap_roce_gid_table(device, port_num)) |
Matan Barak | 55ee3ab | 2015-10-15 18:38:45 +0300 | [diff] [blame] | 821 | return ib_get_cached_gid(device, port_num, index, gid, attr); |
| 822 | |
| 823 | if (attr) |
| 824 | return -EINVAL; |
Matan Barak | 03db3a2 | 2015-07-30 18:33:26 +0300 | [diff] [blame] | 825 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 826 | return device->query_gid(device, port_num, index, gid); |
| 827 | } |
| 828 | EXPORT_SYMBOL(ib_query_gid); |
| 829 | |
| 830 | /** |
Matan Barak | 03db3a2 | 2015-07-30 18:33:26 +0300 | [diff] [blame] | 831 | * ib_enum_roce_netdev - enumerate all RoCE ports |
| 832 | * @ib_dev : IB device we want to query |
| 833 | * @filter: Should we call the callback? |
| 834 | * @filter_cookie: Cookie passed to filter |
| 835 | * @cb: Callback to call for each found RoCE ports |
| 836 | * @cookie: Cookie passed back to the callback |
| 837 | * |
| 838 | * Enumerates all of the physical RoCE ports of ib_dev |
| 839 | * which are related to netdevice and calls callback() on each |
| 840 | * device for which filter() function returns non zero. |
| 841 | */ |
| 842 | void ib_enum_roce_netdev(struct ib_device *ib_dev, |
| 843 | roce_netdev_filter filter, |
| 844 | void *filter_cookie, |
| 845 | roce_netdev_callback cb, |
| 846 | void *cookie) |
| 847 | { |
| 848 | u8 port; |
| 849 | |
| 850 | for (port = rdma_start_port(ib_dev); port <= rdma_end_port(ib_dev); |
| 851 | port++) |
| 852 | if (rdma_protocol_roce(ib_dev, port)) { |
| 853 | struct net_device *idev = NULL; |
| 854 | |
| 855 | if (ib_dev->get_netdev) |
| 856 | idev = ib_dev->get_netdev(ib_dev, port); |
| 857 | |
| 858 | if (idev && |
| 859 | idev->reg_state >= NETREG_UNREGISTERED) { |
| 860 | dev_put(idev); |
| 861 | idev = NULL; |
| 862 | } |
| 863 | |
| 864 | if (filter(ib_dev, port, idev, filter_cookie)) |
| 865 | cb(ib_dev, port, idev, cookie); |
| 866 | |
| 867 | if (idev) |
| 868 | dev_put(idev); |
| 869 | } |
| 870 | } |
| 871 | |
| 872 | /** |
| 873 | * ib_enum_all_roce_netdevs - enumerate all RoCE devices |
| 874 | * @filter: Should we call the callback? |
| 875 | * @filter_cookie: Cookie passed to filter |
| 876 | * @cb: Callback to call for each found RoCE ports |
| 877 | * @cookie: Cookie passed back to the callback |
| 878 | * |
| 879 | * Enumerates all RoCE devices' physical ports which are related |
| 880 | * to netdevices and calls callback() on each device for which |
| 881 | * filter() function returns non zero. |
| 882 | */ |
| 883 | void ib_enum_all_roce_netdevs(roce_netdev_filter filter, |
| 884 | void *filter_cookie, |
| 885 | roce_netdev_callback cb, |
| 886 | void *cookie) |
| 887 | { |
| 888 | struct ib_device *dev; |
| 889 | |
| 890 | down_read(&lists_rwsem); |
| 891 | list_for_each_entry(dev, &device_list, core_list) |
| 892 | ib_enum_roce_netdev(dev, filter, filter_cookie, cb, cookie); |
| 893 | up_read(&lists_rwsem); |
| 894 | } |
| 895 | |
| 896 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 897 | * ib_query_pkey - Get P_Key table entry |
| 898 | * @device:Device to query |
| 899 | * @port_num:Port number to query |
| 900 | * @index:P_Key table index to query |
| 901 | * @pkey:Returned P_Key |
| 902 | * |
| 903 | * ib_query_pkey() fetches the specified P_Key table entry. |
| 904 | */ |
| 905 | int ib_query_pkey(struct ib_device *device, |
| 906 | u8 port_num, u16 index, u16 *pkey) |
| 907 | { |
| 908 | return device->query_pkey(device, port_num, index, pkey); |
| 909 | } |
| 910 | EXPORT_SYMBOL(ib_query_pkey); |
| 911 | |
| 912 | /** |
| 913 | * ib_modify_device - Change IB device attributes |
| 914 | * @device:Device to modify |
| 915 | * @device_modify_mask:Mask of attributes to change |
| 916 | * @device_modify:New attribute values |
| 917 | * |
| 918 | * ib_modify_device() changes a device's attributes as specified by |
| 919 | * the @device_modify_mask and @device_modify structure. |
| 920 | */ |
| 921 | int ib_modify_device(struct ib_device *device, |
| 922 | int device_modify_mask, |
| 923 | struct ib_device_modify *device_modify) |
| 924 | { |
Bart Van Assche | 10e1b54 | 2011-06-18 16:35:42 +0000 | [diff] [blame] | 925 | if (!device->modify_device) |
| 926 | return -ENOSYS; |
| 927 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | return device->modify_device(device, device_modify_mask, |
| 929 | device_modify); |
| 930 | } |
| 931 | EXPORT_SYMBOL(ib_modify_device); |
| 932 | |
| 933 | /** |
| 934 | * ib_modify_port - Modifies the attributes for the specified port. |
| 935 | * @device: The device to modify. |
| 936 | * @port_num: The number of the port to modify. |
| 937 | * @port_modify_mask: Mask used to specify which attributes of the port |
| 938 | * to change. |
| 939 | * @port_modify: New attribute values for the port. |
| 940 | * |
| 941 | * ib_modify_port() changes a port's attributes as specified by the |
| 942 | * @port_modify_mask and @port_modify structure. |
| 943 | */ |
| 944 | int ib_modify_port(struct ib_device *device, |
| 945 | u8 port_num, int port_modify_mask, |
| 946 | struct ib_port_modify *port_modify) |
| 947 | { |
Bart Van Assche | 10e1b54 | 2011-06-18 16:35:42 +0000 | [diff] [blame] | 948 | if (!device->modify_port) |
| 949 | return -ENOSYS; |
| 950 | |
Yuval Shaia | 24dc831 | 2017-01-25 18:41:37 +0200 | [diff] [blame] | 951 | if (!rdma_is_port_valid(device, port_num)) |
Roland Dreier | 116c007 | 2005-10-03 09:32:33 -0700 | [diff] [blame] | 952 | return -EINVAL; |
| 953 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 954 | return device->modify_port(device, port_num, port_modify_mask, |
| 955 | port_modify); |
| 956 | } |
| 957 | EXPORT_SYMBOL(ib_modify_port); |
| 958 | |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 959 | /** |
| 960 | * ib_find_gid - Returns the port number and GID table index where |
| 961 | * a specified GID value occurs. |
| 962 | * @device: The device to query. |
| 963 | * @gid: The GID value to search for. |
Matan Barak | b39ffa1 | 2015-12-23 14:56:47 +0200 | [diff] [blame] | 964 | * @gid_type: Type of GID. |
Matan Barak | 55ee3ab | 2015-10-15 18:38:45 +0300 | [diff] [blame] | 965 | * @ndev: The ndev related to the GID to search for. |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 966 | * @port_num: The port number of the device where the GID value was found. |
| 967 | * @index: The index into the GID table where the GID was found. This |
| 968 | * parameter may be NULL. |
| 969 | */ |
| 970 | int ib_find_gid(struct ib_device *device, union ib_gid *gid, |
Matan Barak | b39ffa1 | 2015-12-23 14:56:47 +0200 | [diff] [blame] | 971 | enum ib_gid_type gid_type, struct net_device *ndev, |
| 972 | u8 *port_num, u16 *index) |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 973 | { |
| 974 | union ib_gid tmp_gid; |
| 975 | int ret, port, i; |
| 976 | |
Ira Weiny | 0cf18d7 | 2015-05-13 20:02:55 -0400 | [diff] [blame] | 977 | for (port = rdma_start_port(device); port <= rdma_end_port(device); ++port) { |
Matan Barak | 03db3a2 | 2015-07-30 18:33:26 +0300 | [diff] [blame] | 978 | if (rdma_cap_roce_gid_table(device, port)) { |
Matan Barak | b39ffa1 | 2015-12-23 14:56:47 +0200 | [diff] [blame] | 979 | if (!ib_find_cached_gid_by_port(device, gid, gid_type, port, |
Matan Barak | d300ec5 | 2015-10-15 18:38:46 +0300 | [diff] [blame] | 980 | ndev, index)) { |
Matan Barak | 03db3a2 | 2015-07-30 18:33:26 +0300 | [diff] [blame] | 981 | *port_num = port; |
| 982 | return 0; |
Dan Carpenter | 98d25af | 2015-08-18 12:22:10 +0300 | [diff] [blame] | 983 | } |
Matan Barak | 03db3a2 | 2015-07-30 18:33:26 +0300 | [diff] [blame] | 984 | } |
| 985 | |
Matan Barak | b39ffa1 | 2015-12-23 14:56:47 +0200 | [diff] [blame] | 986 | if (gid_type != IB_GID_TYPE_IB) |
| 987 | continue; |
| 988 | |
Ira Weiny | 7738613 | 2015-05-13 20:02:58 -0400 | [diff] [blame] | 989 | for (i = 0; i < device->port_immutable[port].gid_tbl_len; ++i) { |
Matan Barak | 55ee3ab | 2015-10-15 18:38:45 +0300 | [diff] [blame] | 990 | ret = ib_query_gid(device, port, i, &tmp_gid, NULL); |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 991 | if (ret) |
| 992 | return ret; |
| 993 | if (!memcmp(&tmp_gid, gid, sizeof *gid)) { |
| 994 | *port_num = port; |
| 995 | if (index) |
| 996 | *index = i; |
| 997 | return 0; |
| 998 | } |
| 999 | } |
| 1000 | } |
| 1001 | |
| 1002 | return -ENOENT; |
| 1003 | } |
| 1004 | EXPORT_SYMBOL(ib_find_gid); |
| 1005 | |
| 1006 | /** |
| 1007 | * ib_find_pkey - Returns the PKey table index where a specified |
| 1008 | * PKey value occurs. |
| 1009 | * @device: The device to query. |
| 1010 | * @port_num: The port number of the device to search for the PKey. |
| 1011 | * @pkey: The PKey value to search for. |
| 1012 | * @index: The index into the PKey table where the PKey was found. |
| 1013 | */ |
| 1014 | int ib_find_pkey(struct ib_device *device, |
| 1015 | u8 port_num, u16 pkey, u16 *index) |
| 1016 | { |
| 1017 | int ret, i; |
| 1018 | u16 tmp_pkey; |
Jack Morgenstein | ff7166c | 2012-08-03 08:40:38 +0000 | [diff] [blame] | 1019 | int partial_ix = -1; |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 1020 | |
Ira Weiny | 7738613 | 2015-05-13 20:02:58 -0400 | [diff] [blame] | 1021 | for (i = 0; i < device->port_immutable[port_num].pkey_tbl_len; ++i) { |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 1022 | ret = ib_query_pkey(device, port_num, i, &tmp_pkey); |
| 1023 | if (ret) |
| 1024 | return ret; |
Moni Shoua | 36026ec | 2007-07-23 10:07:42 +0300 | [diff] [blame] | 1025 | if ((pkey & 0x7fff) == (tmp_pkey & 0x7fff)) { |
Jack Morgenstein | ff7166c | 2012-08-03 08:40:38 +0000 | [diff] [blame] | 1026 | /* if there is full-member pkey take it.*/ |
| 1027 | if (tmp_pkey & 0x8000) { |
| 1028 | *index = i; |
| 1029 | return 0; |
| 1030 | } |
| 1031 | if (partial_ix < 0) |
| 1032 | partial_ix = i; |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 1033 | } |
| 1034 | } |
| 1035 | |
Jack Morgenstein | ff7166c | 2012-08-03 08:40:38 +0000 | [diff] [blame] | 1036 | /*no full-member, if exists take the limited*/ |
| 1037 | if (partial_ix >= 0) { |
| 1038 | *index = partial_ix; |
| 1039 | return 0; |
| 1040 | } |
Yosef Etigin | 5eb620c | 2007-05-14 07:26:51 +0300 | [diff] [blame] | 1041 | return -ENOENT; |
| 1042 | } |
| 1043 | EXPORT_SYMBOL(ib_find_pkey); |
| 1044 | |
Yotam Kenneth | 9268f72 | 2015-07-30 17:50:15 +0300 | [diff] [blame] | 1045 | /** |
| 1046 | * ib_get_net_dev_by_params() - Return the appropriate net_dev |
| 1047 | * for a received CM request |
| 1048 | * @dev: An RDMA device on which the request has been received. |
| 1049 | * @port: Port number on the RDMA device. |
| 1050 | * @pkey: The Pkey the request came on. |
| 1051 | * @gid: A GID that the net_dev uses to communicate. |
| 1052 | * @addr: Contains the IP address that the request specified as its |
| 1053 | * destination. |
| 1054 | */ |
| 1055 | struct net_device *ib_get_net_dev_by_params(struct ib_device *dev, |
| 1056 | u8 port, |
| 1057 | u16 pkey, |
| 1058 | const union ib_gid *gid, |
| 1059 | const struct sockaddr *addr) |
| 1060 | { |
| 1061 | struct net_device *net_dev = NULL; |
| 1062 | struct ib_client_data *context; |
| 1063 | |
| 1064 | if (!rdma_protocol_ib(dev, port)) |
| 1065 | return NULL; |
| 1066 | |
| 1067 | down_read(&lists_rwsem); |
| 1068 | |
| 1069 | list_for_each_entry(context, &dev->client_data_list, list) { |
| 1070 | struct ib_client *client = context->client; |
| 1071 | |
| 1072 | if (context->going_down) |
| 1073 | continue; |
| 1074 | |
| 1075 | if (client->get_net_dev_by_params) { |
| 1076 | net_dev = client->get_net_dev_by_params(dev, port, pkey, |
| 1077 | gid, addr, |
| 1078 | context->data); |
| 1079 | if (net_dev) |
| 1080 | break; |
| 1081 | } |
| 1082 | } |
| 1083 | |
| 1084 | up_read(&lists_rwsem); |
| 1085 | |
| 1086 | return net_dev; |
| 1087 | } |
| 1088 | EXPORT_SYMBOL(ib_get_net_dev_by_params); |
| 1089 | |
Mark Bloch | 735c631 | 2016-05-19 17:12:35 +0300 | [diff] [blame] | 1090 | static struct ibnl_client_cbs ibnl_ls_cb_table[] = { |
| 1091 | [RDMA_NL_LS_OP_RESOLVE] = { |
| 1092 | .dump = ib_nl_handle_resolve_resp, |
| 1093 | .module = THIS_MODULE }, |
| 1094 | [RDMA_NL_LS_OP_SET_TIMEOUT] = { |
| 1095 | .dump = ib_nl_handle_set_timeout, |
| 1096 | .module = THIS_MODULE }, |
Mark Bloch | ae43f82 | 2016-05-19 17:12:36 +0300 | [diff] [blame] | 1097 | [RDMA_NL_LS_OP_IP_RESOLVE] = { |
| 1098 | .dump = ib_nl_handle_ip_res_resp, |
| 1099 | .module = THIS_MODULE }, |
Mark Bloch | 735c631 | 2016-05-19 17:12:35 +0300 | [diff] [blame] | 1100 | }; |
| 1101 | |
| 1102 | static int ib_add_ibnl_clients(void) |
| 1103 | { |
| 1104 | return ibnl_add_client(RDMA_NL_LS, ARRAY_SIZE(ibnl_ls_cb_table), |
| 1105 | ibnl_ls_cb_table); |
| 1106 | } |
| 1107 | |
| 1108 | static void ib_remove_ibnl_clients(void) |
| 1109 | { |
| 1110 | ibnl_remove_client(RDMA_NL_LS); |
| 1111 | } |
| 1112 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1113 | static int __init ib_core_init(void) |
| 1114 | { |
| 1115 | int ret; |
| 1116 | |
Tejun Heo | f062671 | 2010-10-19 15:24:36 +0000 | [diff] [blame] | 1117 | ib_wq = alloc_workqueue("infiniband", 0, 0); |
| 1118 | if (!ib_wq) |
| 1119 | return -ENOMEM; |
| 1120 | |
Christoph Hellwig | 14d3a3b | 2015-12-11 11:53:03 -0800 | [diff] [blame] | 1121 | ib_comp_wq = alloc_workqueue("ib-comp-wq", |
Sagi Grimberg | b7363e6 | 2017-03-08 22:03:17 +0200 | [diff] [blame] | 1122 | WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_SYSFS, 0); |
Christoph Hellwig | 14d3a3b | 2015-12-11 11:53:03 -0800 | [diff] [blame] | 1123 | if (!ib_comp_wq) { |
| 1124 | ret = -ENOMEM; |
| 1125 | goto err; |
| 1126 | } |
| 1127 | |
Jason Gunthorpe | 55aeed0 | 2015-08-04 15:23:34 -0600 | [diff] [blame] | 1128 | ret = class_register(&ib_class); |
Nir Muchtar | fd75c78 | 2011-05-20 11:46:10 -0700 | [diff] [blame] | 1129 | if (ret) { |
Parav Pandit | aba25a3e | 2016-03-02 00:50:29 +0530 | [diff] [blame] | 1130 | pr_warn("Couldn't create InfiniBand device class\n"); |
Christoph Hellwig | 14d3a3b | 2015-12-11 11:53:03 -0800 | [diff] [blame] | 1131 | goto err_comp; |
Nir Muchtar | fd75c78 | 2011-05-20 11:46:10 -0700 | [diff] [blame] | 1132 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1133 | |
Roland Dreier | b2cbae2 | 2011-05-20 11:46:11 -0700 | [diff] [blame] | 1134 | ret = ibnl_init(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1135 | if (ret) { |
Parav Pandit | aba25a3e | 2016-03-02 00:50:29 +0530 | [diff] [blame] | 1136 | pr_warn("Couldn't init IB netlink interface\n"); |
Nir Muchtar | fd75c78 | 2011-05-20 11:46:10 -0700 | [diff] [blame] | 1137 | goto err_sysfs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1138 | } |
| 1139 | |
Leon Romanovsky | e3f20f0 | 2016-05-19 17:12:31 +0300 | [diff] [blame] | 1140 | ret = addr_init(); |
| 1141 | if (ret) { |
| 1142 | pr_warn("Could't init IB address resolution\n"); |
| 1143 | goto err_ibnl; |
| 1144 | } |
| 1145 | |
Mark Bloch | 4c2cb42 | 2016-05-19 17:12:32 +0300 | [diff] [blame] | 1146 | ret = ib_mad_init(); |
| 1147 | if (ret) { |
| 1148 | pr_warn("Couldn't init IB MAD\n"); |
| 1149 | goto err_addr; |
| 1150 | } |
| 1151 | |
Mark Bloch | c2e49c9 | 2016-05-19 17:12:33 +0300 | [diff] [blame] | 1152 | ret = ib_sa_init(); |
| 1153 | if (ret) { |
| 1154 | pr_warn("Couldn't init SA\n"); |
| 1155 | goto err_mad; |
| 1156 | } |
| 1157 | |
Dan Carpenter | da1f857 | 2016-05-31 19:05:56 +0300 | [diff] [blame] | 1158 | ret = ib_add_ibnl_clients(); |
| 1159 | if (ret) { |
Mark Bloch | 735c631 | 2016-05-19 17:12:35 +0300 | [diff] [blame] | 1160 | pr_warn("Couldn't register ibnl clients\n"); |
| 1161 | goto err_sa; |
| 1162 | } |
| 1163 | |
Daniel Jurgens | 8f408ab | 2017-05-19 15:48:53 +0300 | [diff] [blame] | 1164 | ret = register_lsm_notifier(&ibdev_lsm_nb); |
| 1165 | if (ret) { |
| 1166 | pr_warn("Couldn't register LSM notifier. ret %d\n", ret); |
| 1167 | goto err_ibnl_clients; |
| 1168 | } |
| 1169 | |
Matan Barak | 03db3a2 | 2015-07-30 18:33:26 +0300 | [diff] [blame] | 1170 | ib_cache_setup(); |
Roland Dreier | b2cbae2 | 2011-05-20 11:46:11 -0700 | [diff] [blame] | 1171 | |
Nir Muchtar | fd75c78 | 2011-05-20 11:46:10 -0700 | [diff] [blame] | 1172 | return 0; |
| 1173 | |
Daniel Jurgens | 8f408ab | 2017-05-19 15:48:53 +0300 | [diff] [blame] | 1174 | err_ibnl_clients: |
| 1175 | ib_remove_ibnl_clients(); |
Mark Bloch | 735c631 | 2016-05-19 17:12:35 +0300 | [diff] [blame] | 1176 | err_sa: |
| 1177 | ib_sa_cleanup(); |
Mark Bloch | c2e49c9 | 2016-05-19 17:12:33 +0300 | [diff] [blame] | 1178 | err_mad: |
| 1179 | ib_mad_cleanup(); |
Mark Bloch | 4c2cb42 | 2016-05-19 17:12:32 +0300 | [diff] [blame] | 1180 | err_addr: |
| 1181 | addr_cleanup(); |
Leon Romanovsky | e3f20f0 | 2016-05-19 17:12:31 +0300 | [diff] [blame] | 1182 | err_ibnl: |
| 1183 | ibnl_cleanup(); |
Nir Muchtar | fd75c78 | 2011-05-20 11:46:10 -0700 | [diff] [blame] | 1184 | err_sysfs: |
Jason Gunthorpe | 55aeed0 | 2015-08-04 15:23:34 -0600 | [diff] [blame] | 1185 | class_unregister(&ib_class); |
Christoph Hellwig | 14d3a3b | 2015-12-11 11:53:03 -0800 | [diff] [blame] | 1186 | err_comp: |
| 1187 | destroy_workqueue(ib_comp_wq); |
Nir Muchtar | fd75c78 | 2011-05-20 11:46:10 -0700 | [diff] [blame] | 1188 | err: |
| 1189 | destroy_workqueue(ib_wq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1190 | return ret; |
| 1191 | } |
| 1192 | |
| 1193 | static void __exit ib_core_cleanup(void) |
| 1194 | { |
Daniel Jurgens | 8f408ab | 2017-05-19 15:48:53 +0300 | [diff] [blame] | 1195 | unregister_lsm_notifier(&ibdev_lsm_nb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1196 | ib_cache_cleanup(); |
Mark Bloch | 735c631 | 2016-05-19 17:12:35 +0300 | [diff] [blame] | 1197 | ib_remove_ibnl_clients(); |
Mark Bloch | c2e49c9 | 2016-05-19 17:12:33 +0300 | [diff] [blame] | 1198 | ib_sa_cleanup(); |
Mark Bloch | 4c2cb42 | 2016-05-19 17:12:32 +0300 | [diff] [blame] | 1199 | ib_mad_cleanup(); |
Leon Romanovsky | e3f20f0 | 2016-05-19 17:12:31 +0300 | [diff] [blame] | 1200 | addr_cleanup(); |
Roland Dreier | b2cbae2 | 2011-05-20 11:46:11 -0700 | [diff] [blame] | 1201 | ibnl_cleanup(); |
Jason Gunthorpe | 55aeed0 | 2015-08-04 15:23:34 -0600 | [diff] [blame] | 1202 | class_unregister(&ib_class); |
Christoph Hellwig | 14d3a3b | 2015-12-11 11:53:03 -0800 | [diff] [blame] | 1203 | destroy_workqueue(ib_comp_wq); |
Roland Dreier | f7c6a7b | 2007-03-04 16:15:11 -0800 | [diff] [blame] | 1204 | /* Make sure that any pending umem accounting work is done. */ |
Tejun Heo | f062671 | 2010-10-19 15:24:36 +0000 | [diff] [blame] | 1205 | destroy_workqueue(ib_wq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1206 | } |
| 1207 | |
| 1208 | module_init(ib_core_init); |
| 1209 | module_exit(ib_core_cleanup); |