Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 1 | /* |
| 2 | * net/core/devlink.c - Network physical/parent device Netlink interface |
| 3 | * |
| 4 | * Heavily inspired by net/wireless/ |
| 5 | * Copyright (c) 2016 Mellanox Technologies. All rights reserved. |
| 6 | * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | */ |
| 13 | |
| 14 | #include <linux/kernel.h> |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/types.h> |
| 17 | #include <linux/slab.h> |
| 18 | #include <linux/gfp.h> |
| 19 | #include <linux/device.h> |
| 20 | #include <linux/list.h> |
| 21 | #include <linux/netdevice.h> |
| 22 | #include <rdma/ib_verbs.h> |
| 23 | #include <net/netlink.h> |
| 24 | #include <net/genetlink.h> |
| 25 | #include <net/rtnetlink.h> |
| 26 | #include <net/net_namespace.h> |
| 27 | #include <net/sock.h> |
| 28 | #include <net/devlink.h> |
Jiri Pirko | e5224f0 | 2016-07-12 18:05:03 +0200 | [diff] [blame] | 29 | #define CREATE_TRACE_POINTS |
| 30 | #include <trace/events/devlink.h> |
| 31 | |
Arkadi Sharshevsky | 1177009 | 2017-08-24 08:39:59 +0200 | [diff] [blame] | 32 | static struct devlink_dpipe_field devlink_dpipe_fields_ethernet[] = { |
| 33 | { |
David Ahern | 12bdc5e | 2017-08-30 17:07:30 -0700 | [diff] [blame] | 34 | .name = "destination mac", |
Arkadi Sharshevsky | 1177009 | 2017-08-24 08:39:59 +0200 | [diff] [blame] | 35 | .id = DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC, |
| 36 | .bitwidth = 48, |
| 37 | }, |
| 38 | }; |
| 39 | |
| 40 | struct devlink_dpipe_header devlink_dpipe_header_ethernet = { |
| 41 | .name = "ethernet", |
| 42 | .id = DEVLINK_DPIPE_HEADER_ETHERNET, |
| 43 | .fields = devlink_dpipe_fields_ethernet, |
| 44 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ethernet), |
| 45 | .global = true, |
| 46 | }; |
| 47 | EXPORT_SYMBOL(devlink_dpipe_header_ethernet); |
| 48 | |
Arkadi Sharshevsky | 3fb886e | 2017-08-24 08:40:00 +0200 | [diff] [blame] | 49 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv4[] = { |
| 50 | { |
| 51 | .name = "destination ip", |
| 52 | .id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP, |
| 53 | .bitwidth = 32, |
| 54 | }, |
| 55 | }; |
| 56 | |
| 57 | struct devlink_dpipe_header devlink_dpipe_header_ipv4 = { |
| 58 | .name = "ipv4", |
| 59 | .id = DEVLINK_DPIPE_HEADER_IPV4, |
| 60 | .fields = devlink_dpipe_fields_ipv4, |
| 61 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv4), |
| 62 | .global = true, |
| 63 | }; |
| 64 | EXPORT_SYMBOL(devlink_dpipe_header_ipv4); |
| 65 | |
Arkadi Sharshevsky | 1797f5b | 2017-08-31 17:59:12 +0200 | [diff] [blame] | 66 | static struct devlink_dpipe_field devlink_dpipe_fields_ipv6[] = { |
| 67 | { |
| 68 | .name = "destination ip", |
| 69 | .id = DEVLINK_DPIPE_FIELD_IPV6_DST_IP, |
| 70 | .bitwidth = 128, |
| 71 | }, |
| 72 | }; |
| 73 | |
| 74 | struct devlink_dpipe_header devlink_dpipe_header_ipv6 = { |
| 75 | .name = "ipv6", |
| 76 | .id = DEVLINK_DPIPE_HEADER_IPV6, |
| 77 | .fields = devlink_dpipe_fields_ipv6, |
| 78 | .fields_count = ARRAY_SIZE(devlink_dpipe_fields_ipv6), |
| 79 | .global = true, |
| 80 | }; |
| 81 | EXPORT_SYMBOL(devlink_dpipe_header_ipv6); |
| 82 | |
Jiri Pirko | e5224f0 | 2016-07-12 18:05:03 +0200 | [diff] [blame] | 83 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg); |
Nir Dotan | 57186a5 | 2019-02-04 18:47:45 +0000 | [diff] [blame] | 84 | EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwerr); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 85 | |
| 86 | static LIST_HEAD(devlink_list); |
| 87 | |
| 88 | /* devlink_mutex |
| 89 | * |
| 90 | * An overall lock guarding every operation coming from userspace. |
| 91 | * It also guards devlink devices list and it is taken when |
| 92 | * driver registers/unregisters it. |
| 93 | */ |
| 94 | static DEFINE_MUTEX(devlink_mutex); |
| 95 | |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 96 | static struct net *devlink_net(const struct devlink *devlink) |
| 97 | { |
| 98 | return read_pnet(&devlink->_net); |
| 99 | } |
| 100 | |
| 101 | static void devlink_net_set(struct devlink *devlink, struct net *net) |
| 102 | { |
| 103 | write_pnet(&devlink->_net, net); |
| 104 | } |
| 105 | |
| 106 | static struct devlink *devlink_get_from_attrs(struct net *net, |
| 107 | struct nlattr **attrs) |
| 108 | { |
| 109 | struct devlink *devlink; |
| 110 | char *busname; |
| 111 | char *devname; |
| 112 | |
| 113 | if (!attrs[DEVLINK_ATTR_BUS_NAME] || !attrs[DEVLINK_ATTR_DEV_NAME]) |
| 114 | return ERR_PTR(-EINVAL); |
| 115 | |
| 116 | busname = nla_data(attrs[DEVLINK_ATTR_BUS_NAME]); |
| 117 | devname = nla_data(attrs[DEVLINK_ATTR_DEV_NAME]); |
| 118 | |
Parav Pandit | dac7c08 | 2019-02-12 14:24:08 -0600 | [diff] [blame] | 119 | lockdep_assert_held(&devlink_mutex); |
| 120 | |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 121 | list_for_each_entry(devlink, &devlink_list, list) { |
| 122 | if (strcmp(devlink->dev->bus->name, busname) == 0 && |
| 123 | strcmp(dev_name(devlink->dev), devname) == 0 && |
| 124 | net_eq(devlink_net(devlink), net)) |
| 125 | return devlink; |
| 126 | } |
| 127 | |
| 128 | return ERR_PTR(-ENODEV); |
| 129 | } |
| 130 | |
| 131 | static struct devlink *devlink_get_from_info(struct genl_info *info) |
| 132 | { |
| 133 | return devlink_get_from_attrs(genl_info_net(info), info->attrs); |
| 134 | } |
| 135 | |
| 136 | static struct devlink_port *devlink_port_get_by_index(struct devlink *devlink, |
| 137 | int port_index) |
| 138 | { |
| 139 | struct devlink_port *devlink_port; |
| 140 | |
| 141 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
| 142 | if (devlink_port->index == port_index) |
| 143 | return devlink_port; |
| 144 | } |
| 145 | return NULL; |
| 146 | } |
| 147 | |
| 148 | static bool devlink_port_index_exists(struct devlink *devlink, int port_index) |
| 149 | { |
| 150 | return devlink_port_get_by_index(devlink, port_index); |
| 151 | } |
| 152 | |
| 153 | static struct devlink_port *devlink_port_get_from_attrs(struct devlink *devlink, |
| 154 | struct nlattr **attrs) |
| 155 | { |
| 156 | if (attrs[DEVLINK_ATTR_PORT_INDEX]) { |
| 157 | u32 port_index = nla_get_u32(attrs[DEVLINK_ATTR_PORT_INDEX]); |
| 158 | struct devlink_port *devlink_port; |
| 159 | |
| 160 | devlink_port = devlink_port_get_by_index(devlink, port_index); |
| 161 | if (!devlink_port) |
| 162 | return ERR_PTR(-ENODEV); |
| 163 | return devlink_port; |
| 164 | } |
| 165 | return ERR_PTR(-EINVAL); |
| 166 | } |
| 167 | |
| 168 | static struct devlink_port *devlink_port_get_from_info(struct devlink *devlink, |
| 169 | struct genl_info *info) |
| 170 | { |
| 171 | return devlink_port_get_from_attrs(devlink, info->attrs); |
| 172 | } |
| 173 | |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 174 | struct devlink_sb { |
| 175 | struct list_head list; |
| 176 | unsigned int index; |
| 177 | u32 size; |
| 178 | u16 ingress_pools_count; |
| 179 | u16 egress_pools_count; |
| 180 | u16 ingress_tc_count; |
| 181 | u16 egress_tc_count; |
| 182 | }; |
| 183 | |
| 184 | static u16 devlink_sb_pool_count(struct devlink_sb *devlink_sb) |
| 185 | { |
| 186 | return devlink_sb->ingress_pools_count + devlink_sb->egress_pools_count; |
| 187 | } |
| 188 | |
| 189 | static struct devlink_sb *devlink_sb_get_by_index(struct devlink *devlink, |
| 190 | unsigned int sb_index) |
| 191 | { |
| 192 | struct devlink_sb *devlink_sb; |
| 193 | |
| 194 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
| 195 | if (devlink_sb->index == sb_index) |
| 196 | return devlink_sb; |
| 197 | } |
| 198 | return NULL; |
| 199 | } |
| 200 | |
| 201 | static bool devlink_sb_index_exists(struct devlink *devlink, |
| 202 | unsigned int sb_index) |
| 203 | { |
| 204 | return devlink_sb_get_by_index(devlink, sb_index); |
| 205 | } |
| 206 | |
| 207 | static struct devlink_sb *devlink_sb_get_from_attrs(struct devlink *devlink, |
| 208 | struct nlattr **attrs) |
| 209 | { |
| 210 | if (attrs[DEVLINK_ATTR_SB_INDEX]) { |
| 211 | u32 sb_index = nla_get_u32(attrs[DEVLINK_ATTR_SB_INDEX]); |
| 212 | struct devlink_sb *devlink_sb; |
| 213 | |
| 214 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); |
| 215 | if (!devlink_sb) |
| 216 | return ERR_PTR(-ENODEV); |
| 217 | return devlink_sb; |
| 218 | } |
| 219 | return ERR_PTR(-EINVAL); |
| 220 | } |
| 221 | |
| 222 | static struct devlink_sb *devlink_sb_get_from_info(struct devlink *devlink, |
| 223 | struct genl_info *info) |
| 224 | { |
| 225 | return devlink_sb_get_from_attrs(devlink, info->attrs); |
| 226 | } |
| 227 | |
| 228 | static int devlink_sb_pool_index_get_from_attrs(struct devlink_sb *devlink_sb, |
| 229 | struct nlattr **attrs, |
| 230 | u16 *p_pool_index) |
| 231 | { |
| 232 | u16 val; |
| 233 | |
| 234 | if (!attrs[DEVLINK_ATTR_SB_POOL_INDEX]) |
| 235 | return -EINVAL; |
| 236 | |
| 237 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_POOL_INDEX]); |
| 238 | if (val >= devlink_sb_pool_count(devlink_sb)) |
| 239 | return -EINVAL; |
| 240 | *p_pool_index = val; |
| 241 | return 0; |
| 242 | } |
| 243 | |
| 244 | static int devlink_sb_pool_index_get_from_info(struct devlink_sb *devlink_sb, |
| 245 | struct genl_info *info, |
| 246 | u16 *p_pool_index) |
| 247 | { |
| 248 | return devlink_sb_pool_index_get_from_attrs(devlink_sb, info->attrs, |
| 249 | p_pool_index); |
| 250 | } |
| 251 | |
| 252 | static int |
| 253 | devlink_sb_pool_type_get_from_attrs(struct nlattr **attrs, |
| 254 | enum devlink_sb_pool_type *p_pool_type) |
| 255 | { |
| 256 | u8 val; |
| 257 | |
| 258 | if (!attrs[DEVLINK_ATTR_SB_POOL_TYPE]) |
| 259 | return -EINVAL; |
| 260 | |
| 261 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_TYPE]); |
| 262 | if (val != DEVLINK_SB_POOL_TYPE_INGRESS && |
| 263 | val != DEVLINK_SB_POOL_TYPE_EGRESS) |
| 264 | return -EINVAL; |
| 265 | *p_pool_type = val; |
| 266 | return 0; |
| 267 | } |
| 268 | |
| 269 | static int |
| 270 | devlink_sb_pool_type_get_from_info(struct genl_info *info, |
| 271 | enum devlink_sb_pool_type *p_pool_type) |
| 272 | { |
| 273 | return devlink_sb_pool_type_get_from_attrs(info->attrs, p_pool_type); |
| 274 | } |
| 275 | |
| 276 | static int |
| 277 | devlink_sb_th_type_get_from_attrs(struct nlattr **attrs, |
| 278 | enum devlink_sb_threshold_type *p_th_type) |
| 279 | { |
| 280 | u8 val; |
| 281 | |
| 282 | if (!attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]) |
| 283 | return -EINVAL; |
| 284 | |
| 285 | val = nla_get_u8(attrs[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE]); |
| 286 | if (val != DEVLINK_SB_THRESHOLD_TYPE_STATIC && |
| 287 | val != DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC) |
| 288 | return -EINVAL; |
| 289 | *p_th_type = val; |
| 290 | return 0; |
| 291 | } |
| 292 | |
| 293 | static int |
| 294 | devlink_sb_th_type_get_from_info(struct genl_info *info, |
| 295 | enum devlink_sb_threshold_type *p_th_type) |
| 296 | { |
| 297 | return devlink_sb_th_type_get_from_attrs(info->attrs, p_th_type); |
| 298 | } |
| 299 | |
| 300 | static int |
| 301 | devlink_sb_tc_index_get_from_attrs(struct devlink_sb *devlink_sb, |
| 302 | struct nlattr **attrs, |
| 303 | enum devlink_sb_pool_type pool_type, |
| 304 | u16 *p_tc_index) |
| 305 | { |
| 306 | u16 val; |
| 307 | |
| 308 | if (!attrs[DEVLINK_ATTR_SB_TC_INDEX]) |
| 309 | return -EINVAL; |
| 310 | |
| 311 | val = nla_get_u16(attrs[DEVLINK_ATTR_SB_TC_INDEX]); |
| 312 | if (pool_type == DEVLINK_SB_POOL_TYPE_INGRESS && |
| 313 | val >= devlink_sb->ingress_tc_count) |
| 314 | return -EINVAL; |
| 315 | if (pool_type == DEVLINK_SB_POOL_TYPE_EGRESS && |
| 316 | val >= devlink_sb->egress_tc_count) |
| 317 | return -EINVAL; |
| 318 | *p_tc_index = val; |
| 319 | return 0; |
| 320 | } |
| 321 | |
| 322 | static int |
| 323 | devlink_sb_tc_index_get_from_info(struct devlink_sb *devlink_sb, |
| 324 | struct genl_info *info, |
| 325 | enum devlink_sb_pool_type pool_type, |
| 326 | u16 *p_tc_index) |
| 327 | { |
| 328 | return devlink_sb_tc_index_get_from_attrs(devlink_sb, info->attrs, |
| 329 | pool_type, p_tc_index); |
| 330 | } |
| 331 | |
Alex Vesker | b16ebe9 | 2018-07-12 15:13:08 +0300 | [diff] [blame] | 332 | struct devlink_region { |
| 333 | struct devlink *devlink; |
| 334 | struct list_head list; |
| 335 | const char *name; |
| 336 | struct list_head snapshot_list; |
| 337 | u32 max_snapshots; |
| 338 | u32 cur_snapshots; |
| 339 | u64 size; |
| 340 | }; |
| 341 | |
Alex Vesker | d7e5272 | 2018-07-12 15:13:10 +0300 | [diff] [blame] | 342 | struct devlink_snapshot { |
| 343 | struct list_head list; |
| 344 | struct devlink_region *region; |
| 345 | devlink_snapshot_data_dest_t *data_destructor; |
| 346 | u64 data_len; |
| 347 | u8 *data; |
| 348 | u32 id; |
| 349 | }; |
| 350 | |
Alex Vesker | b16ebe9 | 2018-07-12 15:13:08 +0300 | [diff] [blame] | 351 | static struct devlink_region * |
| 352 | devlink_region_get_by_name(struct devlink *devlink, const char *region_name) |
| 353 | { |
| 354 | struct devlink_region *region; |
| 355 | |
| 356 | list_for_each_entry(region, &devlink->region_list, list) |
| 357 | if (!strcmp(region->name, region_name)) |
| 358 | return region; |
| 359 | |
| 360 | return NULL; |
| 361 | } |
| 362 | |
Alex Vesker | d7e5272 | 2018-07-12 15:13:10 +0300 | [diff] [blame] | 363 | static struct devlink_snapshot * |
| 364 | devlink_region_snapshot_get_by_id(struct devlink_region *region, u32 id) |
| 365 | { |
| 366 | struct devlink_snapshot *snapshot; |
| 367 | |
| 368 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) |
| 369 | if (snapshot->id == id) |
| 370 | return snapshot; |
| 371 | |
| 372 | return NULL; |
| 373 | } |
| 374 | |
| 375 | static void devlink_region_snapshot_del(struct devlink_snapshot *snapshot) |
| 376 | { |
| 377 | snapshot->region->cur_snapshots--; |
| 378 | list_del(&snapshot->list); |
| 379 | (*snapshot->data_destructor)(snapshot->data); |
| 380 | kfree(snapshot); |
| 381 | } |
| 382 | |
Jiri Pirko | 1fc2257e | 2016-04-08 19:12:48 +0200 | [diff] [blame] | 383 | #define DEVLINK_NL_FLAG_NEED_DEVLINK BIT(0) |
| 384 | #define DEVLINK_NL_FLAG_NEED_PORT BIT(1) |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 385 | #define DEVLINK_NL_FLAG_NEED_SB BIT(2) |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 386 | |
| 387 | /* The per devlink instance lock is taken by default in the pre-doit |
| 388 | * operation, yet several commands do not require this. The global |
| 389 | * devlink lock is taken and protects from disruption by user-calls. |
| 390 | */ |
| 391 | #define DEVLINK_NL_FLAG_NO_LOCK BIT(3) |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 392 | |
| 393 | static int devlink_nl_pre_doit(const struct genl_ops *ops, |
| 394 | struct sk_buff *skb, struct genl_info *info) |
| 395 | { |
| 396 | struct devlink *devlink; |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 397 | int err; |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 398 | |
| 399 | mutex_lock(&devlink_mutex); |
| 400 | devlink = devlink_get_from_info(info); |
| 401 | if (IS_ERR(devlink)) { |
| 402 | mutex_unlock(&devlink_mutex); |
| 403 | return PTR_ERR(devlink); |
| 404 | } |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 405 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) |
| 406 | mutex_lock(&devlink->lock); |
Jiri Pirko | 1fc2257e | 2016-04-08 19:12:48 +0200 | [diff] [blame] | 407 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_DEVLINK) { |
| 408 | info->user_ptr[0] = devlink; |
| 409 | } else if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_PORT) { |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 410 | struct devlink_port *devlink_port; |
| 411 | |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 412 | devlink_port = devlink_port_get_from_info(devlink, info); |
| 413 | if (IS_ERR(devlink_port)) { |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 414 | err = PTR_ERR(devlink_port); |
| 415 | goto unlock; |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 416 | } |
Jiri Pirko | 1fc2257e | 2016-04-08 19:12:48 +0200 | [diff] [blame] | 417 | info->user_ptr[0] = devlink_port; |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 418 | } |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 419 | if (ops->internal_flags & DEVLINK_NL_FLAG_NEED_SB) { |
| 420 | struct devlink_sb *devlink_sb; |
| 421 | |
| 422 | devlink_sb = devlink_sb_get_from_info(devlink, info); |
| 423 | if (IS_ERR(devlink_sb)) { |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 424 | err = PTR_ERR(devlink_sb); |
| 425 | goto unlock; |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 426 | } |
| 427 | info->user_ptr[1] = devlink_sb; |
| 428 | } |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 429 | return 0; |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 430 | |
| 431 | unlock: |
| 432 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) |
| 433 | mutex_unlock(&devlink->lock); |
| 434 | mutex_unlock(&devlink_mutex); |
| 435 | return err; |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 436 | } |
| 437 | |
| 438 | static void devlink_nl_post_doit(const struct genl_ops *ops, |
| 439 | struct sk_buff *skb, struct genl_info *info) |
| 440 | { |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 441 | struct devlink *devlink; |
| 442 | |
| 443 | devlink = devlink_get_from_info(info); |
| 444 | if (~ops->internal_flags & DEVLINK_NL_FLAG_NO_LOCK) |
| 445 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 446 | mutex_unlock(&devlink_mutex); |
| 447 | } |
| 448 | |
Johannes Berg | 489111e | 2016-10-24 14:40:03 +0200 | [diff] [blame] | 449 | static struct genl_family devlink_nl_family; |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 450 | |
| 451 | enum devlink_multicast_groups { |
| 452 | DEVLINK_MCGRP_CONFIG, |
| 453 | }; |
| 454 | |
| 455 | static const struct genl_multicast_group devlink_nl_mcgrps[] = { |
| 456 | [DEVLINK_MCGRP_CONFIG] = { .name = DEVLINK_GENL_MCGRP_CONFIG_NAME }, |
| 457 | }; |
| 458 | |
| 459 | static int devlink_nl_put_handle(struct sk_buff *msg, struct devlink *devlink) |
| 460 | { |
| 461 | if (nla_put_string(msg, DEVLINK_ATTR_BUS_NAME, devlink->dev->bus->name)) |
| 462 | return -EMSGSIZE; |
| 463 | if (nla_put_string(msg, DEVLINK_ATTR_DEV_NAME, dev_name(devlink->dev))) |
| 464 | return -EMSGSIZE; |
| 465 | return 0; |
| 466 | } |
| 467 | |
| 468 | static int devlink_nl_fill(struct sk_buff *msg, struct devlink *devlink, |
| 469 | enum devlink_command cmd, u32 portid, |
| 470 | u32 seq, int flags) |
| 471 | { |
| 472 | void *hdr; |
| 473 | |
| 474 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); |
| 475 | if (!hdr) |
| 476 | return -EMSGSIZE; |
| 477 | |
| 478 | if (devlink_nl_put_handle(msg, devlink)) |
| 479 | goto nla_put_failure; |
| 480 | |
| 481 | genlmsg_end(msg, hdr); |
| 482 | return 0; |
| 483 | |
| 484 | nla_put_failure: |
| 485 | genlmsg_cancel(msg, hdr); |
| 486 | return -EMSGSIZE; |
| 487 | } |
| 488 | |
| 489 | static void devlink_notify(struct devlink *devlink, enum devlink_command cmd) |
| 490 | { |
| 491 | struct sk_buff *msg; |
| 492 | int err; |
| 493 | |
| 494 | WARN_ON(cmd != DEVLINK_CMD_NEW && cmd != DEVLINK_CMD_DEL); |
| 495 | |
| 496 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 497 | if (!msg) |
| 498 | return; |
| 499 | |
| 500 | err = devlink_nl_fill(msg, devlink, cmd, 0, 0, 0); |
| 501 | if (err) { |
| 502 | nlmsg_free(msg); |
| 503 | return; |
| 504 | } |
| 505 | |
| 506 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), |
| 507 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); |
| 508 | } |
| 509 | |
Jiri Pirko | b9ffcba | 2018-05-18 09:29:00 +0200 | [diff] [blame] | 510 | static int devlink_nl_port_attrs_put(struct sk_buff *msg, |
| 511 | struct devlink_port *devlink_port) |
| 512 | { |
| 513 | struct devlink_port_attrs *attrs = &devlink_port->attrs; |
| 514 | |
| 515 | if (!attrs->set) |
| 516 | return 0; |
Jiri Pirko | 5ec1380 | 2018-05-18 09:29:01 +0200 | [diff] [blame] | 517 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_FLAVOUR, attrs->flavour)) |
| 518 | return -EMSGSIZE; |
Jiri Pirko | b9ffcba | 2018-05-18 09:29:00 +0200 | [diff] [blame] | 519 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_NUMBER, attrs->port_number)) |
| 520 | return -EMSGSIZE; |
| 521 | if (!attrs->split) |
| 522 | return 0; |
| 523 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_GROUP, attrs->port_number)) |
| 524 | return -EMSGSIZE; |
| 525 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_SPLIT_SUBPORT_NUMBER, |
| 526 | attrs->split_subport_number)) |
| 527 | return -EMSGSIZE; |
| 528 | return 0; |
| 529 | } |
| 530 | |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 531 | static int devlink_nl_port_fill(struct sk_buff *msg, struct devlink *devlink, |
| 532 | struct devlink_port *devlink_port, |
| 533 | enum devlink_command cmd, u32 portid, |
| 534 | u32 seq, int flags) |
| 535 | { |
| 536 | void *hdr; |
| 537 | |
| 538 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); |
| 539 | if (!hdr) |
| 540 | return -EMSGSIZE; |
| 541 | |
| 542 | if (devlink_nl_put_handle(msg, devlink)) |
| 543 | goto nla_put_failure; |
| 544 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) |
| 545 | goto nla_put_failure; |
| 546 | if (nla_put_u16(msg, DEVLINK_ATTR_PORT_TYPE, devlink_port->type)) |
| 547 | goto nla_put_failure; |
| 548 | if (devlink_port->desired_type != DEVLINK_PORT_TYPE_NOTSET && |
| 549 | nla_put_u16(msg, DEVLINK_ATTR_PORT_DESIRED_TYPE, |
| 550 | devlink_port->desired_type)) |
| 551 | goto nla_put_failure; |
| 552 | if (devlink_port->type == DEVLINK_PORT_TYPE_ETH) { |
| 553 | struct net_device *netdev = devlink_port->type_dev; |
| 554 | |
| 555 | if (netdev && |
| 556 | (nla_put_u32(msg, DEVLINK_ATTR_PORT_NETDEV_IFINDEX, |
| 557 | netdev->ifindex) || |
| 558 | nla_put_string(msg, DEVLINK_ATTR_PORT_NETDEV_NAME, |
| 559 | netdev->name))) |
| 560 | goto nla_put_failure; |
| 561 | } |
| 562 | if (devlink_port->type == DEVLINK_PORT_TYPE_IB) { |
| 563 | struct ib_device *ibdev = devlink_port->type_dev; |
| 564 | |
| 565 | if (ibdev && |
| 566 | nla_put_string(msg, DEVLINK_ATTR_PORT_IBDEV_NAME, |
| 567 | ibdev->name)) |
| 568 | goto nla_put_failure; |
| 569 | } |
Jiri Pirko | b9ffcba | 2018-05-18 09:29:00 +0200 | [diff] [blame] | 570 | if (devlink_nl_port_attrs_put(msg, devlink_port)) |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 571 | goto nla_put_failure; |
| 572 | |
| 573 | genlmsg_end(msg, hdr); |
| 574 | return 0; |
| 575 | |
| 576 | nla_put_failure: |
| 577 | genlmsg_cancel(msg, hdr); |
| 578 | return -EMSGSIZE; |
| 579 | } |
| 580 | |
| 581 | static void devlink_port_notify(struct devlink_port *devlink_port, |
| 582 | enum devlink_command cmd) |
| 583 | { |
| 584 | struct devlink *devlink = devlink_port->devlink; |
| 585 | struct sk_buff *msg; |
| 586 | int err; |
| 587 | |
| 588 | if (!devlink_port->registered) |
| 589 | return; |
| 590 | |
| 591 | WARN_ON(cmd != DEVLINK_CMD_PORT_NEW && cmd != DEVLINK_CMD_PORT_DEL); |
| 592 | |
| 593 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 594 | if (!msg) |
| 595 | return; |
| 596 | |
| 597 | err = devlink_nl_port_fill(msg, devlink, devlink_port, cmd, 0, 0, 0); |
| 598 | if (err) { |
| 599 | nlmsg_free(msg); |
| 600 | return; |
| 601 | } |
| 602 | |
| 603 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), |
| 604 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); |
| 605 | } |
| 606 | |
| 607 | static int devlink_nl_cmd_get_doit(struct sk_buff *skb, struct genl_info *info) |
| 608 | { |
| 609 | struct devlink *devlink = info->user_ptr[0]; |
| 610 | struct sk_buff *msg; |
| 611 | int err; |
| 612 | |
| 613 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 614 | if (!msg) |
| 615 | return -ENOMEM; |
| 616 | |
| 617 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, |
| 618 | info->snd_portid, info->snd_seq, 0); |
| 619 | if (err) { |
| 620 | nlmsg_free(msg); |
| 621 | return err; |
| 622 | } |
| 623 | |
| 624 | return genlmsg_reply(msg, info); |
| 625 | } |
| 626 | |
| 627 | static int devlink_nl_cmd_get_dumpit(struct sk_buff *msg, |
| 628 | struct netlink_callback *cb) |
| 629 | { |
| 630 | struct devlink *devlink; |
| 631 | int start = cb->args[0]; |
| 632 | int idx = 0; |
| 633 | int err; |
| 634 | |
| 635 | mutex_lock(&devlink_mutex); |
| 636 | list_for_each_entry(devlink, &devlink_list, list) { |
| 637 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) |
| 638 | continue; |
| 639 | if (idx < start) { |
| 640 | idx++; |
| 641 | continue; |
| 642 | } |
| 643 | err = devlink_nl_fill(msg, devlink, DEVLINK_CMD_NEW, |
| 644 | NETLINK_CB(cb->skb).portid, |
| 645 | cb->nlh->nlmsg_seq, NLM_F_MULTI); |
| 646 | if (err) |
| 647 | goto out; |
| 648 | idx++; |
| 649 | } |
| 650 | out: |
| 651 | mutex_unlock(&devlink_mutex); |
| 652 | |
| 653 | cb->args[0] = idx; |
| 654 | return msg->len; |
| 655 | } |
| 656 | |
| 657 | static int devlink_nl_cmd_port_get_doit(struct sk_buff *skb, |
| 658 | struct genl_info *info) |
| 659 | { |
Jiri Pirko | 1fc2257e | 2016-04-08 19:12:48 +0200 | [diff] [blame] | 660 | struct devlink_port *devlink_port = info->user_ptr[0]; |
| 661 | struct devlink *devlink = devlink_port->devlink; |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 662 | struct sk_buff *msg; |
| 663 | int err; |
| 664 | |
| 665 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 666 | if (!msg) |
| 667 | return -ENOMEM; |
| 668 | |
| 669 | err = devlink_nl_port_fill(msg, devlink, devlink_port, |
| 670 | DEVLINK_CMD_PORT_NEW, |
| 671 | info->snd_portid, info->snd_seq, 0); |
| 672 | if (err) { |
| 673 | nlmsg_free(msg); |
| 674 | return err; |
| 675 | } |
| 676 | |
| 677 | return genlmsg_reply(msg, info); |
| 678 | } |
| 679 | |
| 680 | static int devlink_nl_cmd_port_get_dumpit(struct sk_buff *msg, |
| 681 | struct netlink_callback *cb) |
| 682 | { |
| 683 | struct devlink *devlink; |
| 684 | struct devlink_port *devlink_port; |
| 685 | int start = cb->args[0]; |
| 686 | int idx = 0; |
| 687 | int err; |
| 688 | |
| 689 | mutex_lock(&devlink_mutex); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 690 | list_for_each_entry(devlink, &devlink_list, list) { |
| 691 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) |
| 692 | continue; |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 693 | mutex_lock(&devlink->lock); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 694 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
| 695 | if (idx < start) { |
| 696 | idx++; |
| 697 | continue; |
| 698 | } |
| 699 | err = devlink_nl_port_fill(msg, devlink, devlink_port, |
| 700 | DEVLINK_CMD_NEW, |
| 701 | NETLINK_CB(cb->skb).portid, |
| 702 | cb->nlh->nlmsg_seq, |
| 703 | NLM_F_MULTI); |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 704 | if (err) { |
| 705 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 706 | goto out; |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 707 | } |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 708 | idx++; |
| 709 | } |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 710 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 711 | } |
| 712 | out: |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 713 | mutex_unlock(&devlink_mutex); |
| 714 | |
| 715 | cb->args[0] = idx; |
| 716 | return msg->len; |
| 717 | } |
| 718 | |
| 719 | static int devlink_port_type_set(struct devlink *devlink, |
| 720 | struct devlink_port *devlink_port, |
| 721 | enum devlink_port_type port_type) |
| 722 | |
| 723 | { |
| 724 | int err; |
| 725 | |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 726 | if (devlink->ops->port_type_set) { |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 727 | if (port_type == DEVLINK_PORT_TYPE_NOTSET) |
| 728 | return -EINVAL; |
Elad Raz | 6edf101 | 2016-10-23 17:43:05 +0200 | [diff] [blame] | 729 | if (port_type == devlink_port->type) |
| 730 | return 0; |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 731 | err = devlink->ops->port_type_set(devlink_port, port_type); |
| 732 | if (err) |
| 733 | return err; |
| 734 | devlink_port->desired_type = port_type; |
| 735 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
| 736 | return 0; |
| 737 | } |
| 738 | return -EOPNOTSUPP; |
| 739 | } |
| 740 | |
| 741 | static int devlink_nl_cmd_port_set_doit(struct sk_buff *skb, |
| 742 | struct genl_info *info) |
| 743 | { |
Jiri Pirko | 1fc2257e | 2016-04-08 19:12:48 +0200 | [diff] [blame] | 744 | struct devlink_port *devlink_port = info->user_ptr[0]; |
| 745 | struct devlink *devlink = devlink_port->devlink; |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 746 | int err; |
| 747 | |
| 748 | if (info->attrs[DEVLINK_ATTR_PORT_TYPE]) { |
| 749 | enum devlink_port_type port_type; |
| 750 | |
| 751 | port_type = nla_get_u16(info->attrs[DEVLINK_ATTR_PORT_TYPE]); |
| 752 | err = devlink_port_type_set(devlink, devlink_port, port_type); |
| 753 | if (err) |
| 754 | return err; |
| 755 | } |
| 756 | return 0; |
| 757 | } |
| 758 | |
David Ahern | ac0fc8a | 2018-06-05 08:14:09 -0700 | [diff] [blame] | 759 | static int devlink_port_split(struct devlink *devlink, u32 port_index, |
| 760 | u32 count, struct netlink_ext_ack *extack) |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 761 | |
| 762 | { |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 763 | if (devlink->ops->port_split) |
David Ahern | ac0fc8a | 2018-06-05 08:14:09 -0700 | [diff] [blame] | 764 | return devlink->ops->port_split(devlink, port_index, count, |
| 765 | extack); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 766 | return -EOPNOTSUPP; |
| 767 | } |
| 768 | |
| 769 | static int devlink_nl_cmd_port_split_doit(struct sk_buff *skb, |
| 770 | struct genl_info *info) |
| 771 | { |
| 772 | struct devlink *devlink = info->user_ptr[0]; |
| 773 | u32 port_index; |
| 774 | u32 count; |
| 775 | |
| 776 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX] || |
| 777 | !info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]) |
| 778 | return -EINVAL; |
| 779 | |
| 780 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); |
| 781 | count = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_SPLIT_COUNT]); |
David Ahern | ac0fc8a | 2018-06-05 08:14:09 -0700 | [diff] [blame] | 782 | return devlink_port_split(devlink, port_index, count, info->extack); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 783 | } |
| 784 | |
David Ahern | ac0fc8a | 2018-06-05 08:14:09 -0700 | [diff] [blame] | 785 | static int devlink_port_unsplit(struct devlink *devlink, u32 port_index, |
| 786 | struct netlink_ext_ack *extack) |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 787 | |
| 788 | { |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 789 | if (devlink->ops->port_unsplit) |
David Ahern | ac0fc8a | 2018-06-05 08:14:09 -0700 | [diff] [blame] | 790 | return devlink->ops->port_unsplit(devlink, port_index, extack); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 791 | return -EOPNOTSUPP; |
| 792 | } |
| 793 | |
| 794 | static int devlink_nl_cmd_port_unsplit_doit(struct sk_buff *skb, |
| 795 | struct genl_info *info) |
| 796 | { |
| 797 | struct devlink *devlink = info->user_ptr[0]; |
| 798 | u32 port_index; |
| 799 | |
| 800 | if (!info->attrs[DEVLINK_ATTR_PORT_INDEX]) |
| 801 | return -EINVAL; |
| 802 | |
| 803 | port_index = nla_get_u32(info->attrs[DEVLINK_ATTR_PORT_INDEX]); |
David Ahern | ac0fc8a | 2018-06-05 08:14:09 -0700 | [diff] [blame] | 804 | return devlink_port_unsplit(devlink, port_index, info->extack); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 805 | } |
| 806 | |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 807 | static int devlink_nl_sb_fill(struct sk_buff *msg, struct devlink *devlink, |
| 808 | struct devlink_sb *devlink_sb, |
| 809 | enum devlink_command cmd, u32 portid, |
| 810 | u32 seq, int flags) |
| 811 | { |
| 812 | void *hdr; |
| 813 | |
| 814 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); |
| 815 | if (!hdr) |
| 816 | return -EMSGSIZE; |
| 817 | |
| 818 | if (devlink_nl_put_handle(msg, devlink)) |
| 819 | goto nla_put_failure; |
| 820 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) |
| 821 | goto nla_put_failure; |
| 822 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_SIZE, devlink_sb->size)) |
| 823 | goto nla_put_failure; |
| 824 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, |
| 825 | devlink_sb->ingress_pools_count)) |
| 826 | goto nla_put_failure; |
| 827 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, |
| 828 | devlink_sb->egress_pools_count)) |
| 829 | goto nla_put_failure; |
| 830 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_INGRESS_TC_COUNT, |
| 831 | devlink_sb->ingress_tc_count)) |
| 832 | goto nla_put_failure; |
| 833 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_EGRESS_TC_COUNT, |
| 834 | devlink_sb->egress_tc_count)) |
| 835 | goto nla_put_failure; |
| 836 | |
| 837 | genlmsg_end(msg, hdr); |
| 838 | return 0; |
| 839 | |
| 840 | nla_put_failure: |
| 841 | genlmsg_cancel(msg, hdr); |
| 842 | return -EMSGSIZE; |
| 843 | } |
| 844 | |
| 845 | static int devlink_nl_cmd_sb_get_doit(struct sk_buff *skb, |
| 846 | struct genl_info *info) |
| 847 | { |
| 848 | struct devlink *devlink = info->user_ptr[0]; |
| 849 | struct devlink_sb *devlink_sb = info->user_ptr[1]; |
| 850 | struct sk_buff *msg; |
| 851 | int err; |
| 852 | |
| 853 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 854 | if (!msg) |
| 855 | return -ENOMEM; |
| 856 | |
| 857 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, |
| 858 | DEVLINK_CMD_SB_NEW, |
| 859 | info->snd_portid, info->snd_seq, 0); |
| 860 | if (err) { |
| 861 | nlmsg_free(msg); |
| 862 | return err; |
| 863 | } |
| 864 | |
| 865 | return genlmsg_reply(msg, info); |
| 866 | } |
| 867 | |
| 868 | static int devlink_nl_cmd_sb_get_dumpit(struct sk_buff *msg, |
| 869 | struct netlink_callback *cb) |
| 870 | { |
| 871 | struct devlink *devlink; |
| 872 | struct devlink_sb *devlink_sb; |
| 873 | int start = cb->args[0]; |
| 874 | int idx = 0; |
| 875 | int err; |
| 876 | |
| 877 | mutex_lock(&devlink_mutex); |
| 878 | list_for_each_entry(devlink, &devlink_list, list) { |
| 879 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) |
| 880 | continue; |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 881 | mutex_lock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 882 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
| 883 | if (idx < start) { |
| 884 | idx++; |
| 885 | continue; |
| 886 | } |
| 887 | err = devlink_nl_sb_fill(msg, devlink, devlink_sb, |
| 888 | DEVLINK_CMD_SB_NEW, |
| 889 | NETLINK_CB(cb->skb).portid, |
| 890 | cb->nlh->nlmsg_seq, |
| 891 | NLM_F_MULTI); |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 892 | if (err) { |
| 893 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 894 | goto out; |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 895 | } |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 896 | idx++; |
| 897 | } |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 898 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 899 | } |
| 900 | out: |
| 901 | mutex_unlock(&devlink_mutex); |
| 902 | |
| 903 | cb->args[0] = idx; |
| 904 | return msg->len; |
| 905 | } |
| 906 | |
| 907 | static int devlink_nl_sb_pool_fill(struct sk_buff *msg, struct devlink *devlink, |
| 908 | struct devlink_sb *devlink_sb, |
| 909 | u16 pool_index, enum devlink_command cmd, |
| 910 | u32 portid, u32 seq, int flags) |
| 911 | { |
| 912 | struct devlink_sb_pool_info pool_info; |
| 913 | void *hdr; |
| 914 | int err; |
| 915 | |
| 916 | err = devlink->ops->sb_pool_get(devlink, devlink_sb->index, |
| 917 | pool_index, &pool_info); |
| 918 | if (err) |
| 919 | return err; |
| 920 | |
| 921 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); |
| 922 | if (!hdr) |
| 923 | return -EMSGSIZE; |
| 924 | |
| 925 | if (devlink_nl_put_handle(msg, devlink)) |
| 926 | goto nla_put_failure; |
| 927 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) |
| 928 | goto nla_put_failure; |
| 929 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) |
| 930 | goto nla_put_failure; |
| 931 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_info.pool_type)) |
| 932 | goto nla_put_failure; |
| 933 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_SIZE, pool_info.size)) |
| 934 | goto nla_put_failure; |
| 935 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, |
| 936 | pool_info.threshold_type)) |
| 937 | goto nla_put_failure; |
Jakub Kicinski | bff5731 | 2019-02-01 17:56:28 -0800 | [diff] [blame] | 938 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_POOL_CELL_SIZE, |
| 939 | pool_info.cell_size)) |
| 940 | goto nla_put_failure; |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 941 | |
| 942 | genlmsg_end(msg, hdr); |
| 943 | return 0; |
| 944 | |
| 945 | nla_put_failure: |
| 946 | genlmsg_cancel(msg, hdr); |
| 947 | return -EMSGSIZE; |
| 948 | } |
| 949 | |
| 950 | static int devlink_nl_cmd_sb_pool_get_doit(struct sk_buff *skb, |
| 951 | struct genl_info *info) |
| 952 | { |
| 953 | struct devlink *devlink = info->user_ptr[0]; |
| 954 | struct devlink_sb *devlink_sb = info->user_ptr[1]; |
| 955 | struct sk_buff *msg; |
| 956 | u16 pool_index; |
| 957 | int err; |
| 958 | |
| 959 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
| 960 | &pool_index); |
| 961 | if (err) |
| 962 | return err; |
| 963 | |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 964 | if (!devlink->ops->sb_pool_get) |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 965 | return -EOPNOTSUPP; |
| 966 | |
| 967 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 968 | if (!msg) |
| 969 | return -ENOMEM; |
| 970 | |
| 971 | err = devlink_nl_sb_pool_fill(msg, devlink, devlink_sb, pool_index, |
| 972 | DEVLINK_CMD_SB_POOL_NEW, |
| 973 | info->snd_portid, info->snd_seq, 0); |
| 974 | if (err) { |
| 975 | nlmsg_free(msg); |
| 976 | return err; |
| 977 | } |
| 978 | |
| 979 | return genlmsg_reply(msg, info); |
| 980 | } |
| 981 | |
| 982 | static int __sb_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, |
| 983 | struct devlink *devlink, |
| 984 | struct devlink_sb *devlink_sb, |
| 985 | u32 portid, u32 seq) |
| 986 | { |
| 987 | u16 pool_count = devlink_sb_pool_count(devlink_sb); |
| 988 | u16 pool_index; |
| 989 | int err; |
| 990 | |
| 991 | for (pool_index = 0; pool_index < pool_count; pool_index++) { |
| 992 | if (*p_idx < start) { |
| 993 | (*p_idx)++; |
| 994 | continue; |
| 995 | } |
| 996 | err = devlink_nl_sb_pool_fill(msg, devlink, |
| 997 | devlink_sb, |
| 998 | pool_index, |
| 999 | DEVLINK_CMD_SB_POOL_NEW, |
| 1000 | portid, seq, NLM_F_MULTI); |
| 1001 | if (err) |
| 1002 | return err; |
| 1003 | (*p_idx)++; |
| 1004 | } |
| 1005 | return 0; |
| 1006 | } |
| 1007 | |
| 1008 | static int devlink_nl_cmd_sb_pool_get_dumpit(struct sk_buff *msg, |
| 1009 | struct netlink_callback *cb) |
| 1010 | { |
| 1011 | struct devlink *devlink; |
| 1012 | struct devlink_sb *devlink_sb; |
| 1013 | int start = cb->args[0]; |
| 1014 | int idx = 0; |
| 1015 | int err; |
| 1016 | |
| 1017 | mutex_lock(&devlink_mutex); |
| 1018 | list_for_each_entry(devlink, &devlink_list, list) { |
| 1019 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 1020 | !devlink->ops->sb_pool_get) |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1021 | continue; |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 1022 | mutex_lock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1023 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
| 1024 | err = __sb_pool_get_dumpit(msg, start, &idx, devlink, |
| 1025 | devlink_sb, |
| 1026 | NETLINK_CB(cb->skb).portid, |
| 1027 | cb->nlh->nlmsg_seq); |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 1028 | if (err && err != -EOPNOTSUPP) { |
| 1029 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1030 | goto out; |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 1031 | } |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1032 | } |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 1033 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1034 | } |
| 1035 | out: |
| 1036 | mutex_unlock(&devlink_mutex); |
| 1037 | |
| 1038 | cb->args[0] = idx; |
| 1039 | return msg->len; |
| 1040 | } |
| 1041 | |
| 1042 | static int devlink_sb_pool_set(struct devlink *devlink, unsigned int sb_index, |
| 1043 | u16 pool_index, u32 size, |
| 1044 | enum devlink_sb_threshold_type threshold_type) |
| 1045 | |
| 1046 | { |
| 1047 | const struct devlink_ops *ops = devlink->ops; |
| 1048 | |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 1049 | if (ops->sb_pool_set) |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1050 | return ops->sb_pool_set(devlink, sb_index, pool_index, |
| 1051 | size, threshold_type); |
| 1052 | return -EOPNOTSUPP; |
| 1053 | } |
| 1054 | |
| 1055 | static int devlink_nl_cmd_sb_pool_set_doit(struct sk_buff *skb, |
| 1056 | struct genl_info *info) |
| 1057 | { |
| 1058 | struct devlink *devlink = info->user_ptr[0]; |
| 1059 | struct devlink_sb *devlink_sb = info->user_ptr[1]; |
| 1060 | enum devlink_sb_threshold_type threshold_type; |
| 1061 | u16 pool_index; |
| 1062 | u32 size; |
| 1063 | int err; |
| 1064 | |
| 1065 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
| 1066 | &pool_index); |
| 1067 | if (err) |
| 1068 | return err; |
| 1069 | |
| 1070 | err = devlink_sb_th_type_get_from_info(info, &threshold_type); |
| 1071 | if (err) |
| 1072 | return err; |
| 1073 | |
| 1074 | if (!info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]) |
| 1075 | return -EINVAL; |
| 1076 | |
| 1077 | size = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_POOL_SIZE]); |
| 1078 | return devlink_sb_pool_set(devlink, devlink_sb->index, |
| 1079 | pool_index, size, threshold_type); |
| 1080 | } |
| 1081 | |
| 1082 | static int devlink_nl_sb_port_pool_fill(struct sk_buff *msg, |
| 1083 | struct devlink *devlink, |
| 1084 | struct devlink_port *devlink_port, |
| 1085 | struct devlink_sb *devlink_sb, |
| 1086 | u16 pool_index, |
| 1087 | enum devlink_command cmd, |
| 1088 | u32 portid, u32 seq, int flags) |
| 1089 | { |
Jiri Pirko | df38daf | 2016-04-14 18:19:14 +0200 | [diff] [blame] | 1090 | const struct devlink_ops *ops = devlink->ops; |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1091 | u32 threshold; |
| 1092 | void *hdr; |
| 1093 | int err; |
| 1094 | |
Jiri Pirko | df38daf | 2016-04-14 18:19:14 +0200 | [diff] [blame] | 1095 | err = ops->sb_port_pool_get(devlink_port, devlink_sb->index, |
| 1096 | pool_index, &threshold); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1097 | if (err) |
| 1098 | return err; |
| 1099 | |
| 1100 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); |
| 1101 | if (!hdr) |
| 1102 | return -EMSGSIZE; |
| 1103 | |
| 1104 | if (devlink_nl_put_handle(msg, devlink)) |
| 1105 | goto nla_put_failure; |
| 1106 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) |
| 1107 | goto nla_put_failure; |
| 1108 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) |
| 1109 | goto nla_put_failure; |
| 1110 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) |
| 1111 | goto nla_put_failure; |
| 1112 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) |
| 1113 | goto nla_put_failure; |
| 1114 | |
Jiri Pirko | df38daf | 2016-04-14 18:19:14 +0200 | [diff] [blame] | 1115 | if (ops->sb_occ_port_pool_get) { |
| 1116 | u32 cur; |
| 1117 | u32 max; |
| 1118 | |
| 1119 | err = ops->sb_occ_port_pool_get(devlink_port, devlink_sb->index, |
| 1120 | pool_index, &cur, &max); |
| 1121 | if (err && err != -EOPNOTSUPP) |
| 1122 | return err; |
| 1123 | if (!err) { |
| 1124 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) |
| 1125 | goto nla_put_failure; |
| 1126 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) |
| 1127 | goto nla_put_failure; |
| 1128 | } |
| 1129 | } |
| 1130 | |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1131 | genlmsg_end(msg, hdr); |
| 1132 | return 0; |
| 1133 | |
| 1134 | nla_put_failure: |
| 1135 | genlmsg_cancel(msg, hdr); |
| 1136 | return -EMSGSIZE; |
| 1137 | } |
| 1138 | |
| 1139 | static int devlink_nl_cmd_sb_port_pool_get_doit(struct sk_buff *skb, |
| 1140 | struct genl_info *info) |
| 1141 | { |
| 1142 | struct devlink_port *devlink_port = info->user_ptr[0]; |
| 1143 | struct devlink *devlink = devlink_port->devlink; |
| 1144 | struct devlink_sb *devlink_sb = info->user_ptr[1]; |
| 1145 | struct sk_buff *msg; |
| 1146 | u16 pool_index; |
| 1147 | int err; |
| 1148 | |
| 1149 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
| 1150 | &pool_index); |
| 1151 | if (err) |
| 1152 | return err; |
| 1153 | |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 1154 | if (!devlink->ops->sb_port_pool_get) |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1155 | return -EOPNOTSUPP; |
| 1156 | |
| 1157 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 1158 | if (!msg) |
| 1159 | return -ENOMEM; |
| 1160 | |
| 1161 | err = devlink_nl_sb_port_pool_fill(msg, devlink, devlink_port, |
| 1162 | devlink_sb, pool_index, |
| 1163 | DEVLINK_CMD_SB_PORT_POOL_NEW, |
| 1164 | info->snd_portid, info->snd_seq, 0); |
| 1165 | if (err) { |
| 1166 | nlmsg_free(msg); |
| 1167 | return err; |
| 1168 | } |
| 1169 | |
| 1170 | return genlmsg_reply(msg, info); |
| 1171 | } |
| 1172 | |
| 1173 | static int __sb_port_pool_get_dumpit(struct sk_buff *msg, int start, int *p_idx, |
| 1174 | struct devlink *devlink, |
| 1175 | struct devlink_sb *devlink_sb, |
| 1176 | u32 portid, u32 seq) |
| 1177 | { |
| 1178 | struct devlink_port *devlink_port; |
| 1179 | u16 pool_count = devlink_sb_pool_count(devlink_sb); |
| 1180 | u16 pool_index; |
| 1181 | int err; |
| 1182 | |
| 1183 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
| 1184 | for (pool_index = 0; pool_index < pool_count; pool_index++) { |
| 1185 | if (*p_idx < start) { |
| 1186 | (*p_idx)++; |
| 1187 | continue; |
| 1188 | } |
| 1189 | err = devlink_nl_sb_port_pool_fill(msg, devlink, |
| 1190 | devlink_port, |
| 1191 | devlink_sb, |
| 1192 | pool_index, |
| 1193 | DEVLINK_CMD_SB_PORT_POOL_NEW, |
| 1194 | portid, seq, |
| 1195 | NLM_F_MULTI); |
| 1196 | if (err) |
| 1197 | return err; |
| 1198 | (*p_idx)++; |
| 1199 | } |
| 1200 | } |
| 1201 | return 0; |
| 1202 | } |
| 1203 | |
| 1204 | static int devlink_nl_cmd_sb_port_pool_get_dumpit(struct sk_buff *msg, |
| 1205 | struct netlink_callback *cb) |
| 1206 | { |
| 1207 | struct devlink *devlink; |
| 1208 | struct devlink_sb *devlink_sb; |
| 1209 | int start = cb->args[0]; |
| 1210 | int idx = 0; |
| 1211 | int err; |
| 1212 | |
| 1213 | mutex_lock(&devlink_mutex); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1214 | list_for_each_entry(devlink, &devlink_list, list) { |
| 1215 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 1216 | !devlink->ops->sb_port_pool_get) |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1217 | continue; |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 1218 | mutex_lock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1219 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
| 1220 | err = __sb_port_pool_get_dumpit(msg, start, &idx, |
| 1221 | devlink, devlink_sb, |
| 1222 | NETLINK_CB(cb->skb).portid, |
| 1223 | cb->nlh->nlmsg_seq); |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 1224 | if (err && err != -EOPNOTSUPP) { |
| 1225 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1226 | goto out; |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 1227 | } |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1228 | } |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 1229 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1230 | } |
| 1231 | out: |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1232 | mutex_unlock(&devlink_mutex); |
| 1233 | |
| 1234 | cb->args[0] = idx; |
| 1235 | return msg->len; |
| 1236 | } |
| 1237 | |
| 1238 | static int devlink_sb_port_pool_set(struct devlink_port *devlink_port, |
| 1239 | unsigned int sb_index, u16 pool_index, |
| 1240 | u32 threshold) |
| 1241 | |
| 1242 | { |
| 1243 | const struct devlink_ops *ops = devlink_port->devlink->ops; |
| 1244 | |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 1245 | if (ops->sb_port_pool_set) |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1246 | return ops->sb_port_pool_set(devlink_port, sb_index, |
| 1247 | pool_index, threshold); |
| 1248 | return -EOPNOTSUPP; |
| 1249 | } |
| 1250 | |
| 1251 | static int devlink_nl_cmd_sb_port_pool_set_doit(struct sk_buff *skb, |
| 1252 | struct genl_info *info) |
| 1253 | { |
| 1254 | struct devlink_port *devlink_port = info->user_ptr[0]; |
| 1255 | struct devlink_sb *devlink_sb = info->user_ptr[1]; |
| 1256 | u16 pool_index; |
| 1257 | u32 threshold; |
| 1258 | int err; |
| 1259 | |
| 1260 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
| 1261 | &pool_index); |
| 1262 | if (err) |
| 1263 | return err; |
| 1264 | |
| 1265 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) |
| 1266 | return -EINVAL; |
| 1267 | |
| 1268 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); |
| 1269 | return devlink_sb_port_pool_set(devlink_port, devlink_sb->index, |
| 1270 | pool_index, threshold); |
| 1271 | } |
| 1272 | |
| 1273 | static int |
| 1274 | devlink_nl_sb_tc_pool_bind_fill(struct sk_buff *msg, struct devlink *devlink, |
| 1275 | struct devlink_port *devlink_port, |
| 1276 | struct devlink_sb *devlink_sb, u16 tc_index, |
| 1277 | enum devlink_sb_pool_type pool_type, |
| 1278 | enum devlink_command cmd, |
| 1279 | u32 portid, u32 seq, int flags) |
| 1280 | { |
Jiri Pirko | df38daf | 2016-04-14 18:19:14 +0200 | [diff] [blame] | 1281 | const struct devlink_ops *ops = devlink->ops; |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1282 | u16 pool_index; |
| 1283 | u32 threshold; |
| 1284 | void *hdr; |
| 1285 | int err; |
| 1286 | |
Jiri Pirko | df38daf | 2016-04-14 18:19:14 +0200 | [diff] [blame] | 1287 | err = ops->sb_tc_pool_bind_get(devlink_port, devlink_sb->index, |
| 1288 | tc_index, pool_type, |
| 1289 | &pool_index, &threshold); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1290 | if (err) |
| 1291 | return err; |
| 1292 | |
| 1293 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); |
| 1294 | if (!hdr) |
| 1295 | return -EMSGSIZE; |
| 1296 | |
| 1297 | if (devlink_nl_put_handle(msg, devlink)) |
| 1298 | goto nla_put_failure; |
| 1299 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, devlink_port->index)) |
| 1300 | goto nla_put_failure; |
| 1301 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_INDEX, devlink_sb->index)) |
| 1302 | goto nla_put_failure; |
| 1303 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_TC_INDEX, tc_index)) |
| 1304 | goto nla_put_failure; |
| 1305 | if (nla_put_u8(msg, DEVLINK_ATTR_SB_POOL_TYPE, pool_type)) |
| 1306 | goto nla_put_failure; |
| 1307 | if (nla_put_u16(msg, DEVLINK_ATTR_SB_POOL_INDEX, pool_index)) |
| 1308 | goto nla_put_failure; |
| 1309 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_THRESHOLD, threshold)) |
| 1310 | goto nla_put_failure; |
| 1311 | |
Jiri Pirko | df38daf | 2016-04-14 18:19:14 +0200 | [diff] [blame] | 1312 | if (ops->sb_occ_tc_port_bind_get) { |
| 1313 | u32 cur; |
| 1314 | u32 max; |
| 1315 | |
| 1316 | err = ops->sb_occ_tc_port_bind_get(devlink_port, |
| 1317 | devlink_sb->index, |
| 1318 | tc_index, pool_type, |
| 1319 | &cur, &max); |
| 1320 | if (err && err != -EOPNOTSUPP) |
| 1321 | return err; |
| 1322 | if (!err) { |
| 1323 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_CUR, cur)) |
| 1324 | goto nla_put_failure; |
| 1325 | if (nla_put_u32(msg, DEVLINK_ATTR_SB_OCC_MAX, max)) |
| 1326 | goto nla_put_failure; |
| 1327 | } |
| 1328 | } |
| 1329 | |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1330 | genlmsg_end(msg, hdr); |
| 1331 | return 0; |
| 1332 | |
| 1333 | nla_put_failure: |
| 1334 | genlmsg_cancel(msg, hdr); |
| 1335 | return -EMSGSIZE; |
| 1336 | } |
| 1337 | |
| 1338 | static int devlink_nl_cmd_sb_tc_pool_bind_get_doit(struct sk_buff *skb, |
| 1339 | struct genl_info *info) |
| 1340 | { |
| 1341 | struct devlink_port *devlink_port = info->user_ptr[0]; |
| 1342 | struct devlink *devlink = devlink_port->devlink; |
| 1343 | struct devlink_sb *devlink_sb = info->user_ptr[1]; |
| 1344 | struct sk_buff *msg; |
| 1345 | enum devlink_sb_pool_type pool_type; |
| 1346 | u16 tc_index; |
| 1347 | int err; |
| 1348 | |
| 1349 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
| 1350 | if (err) |
| 1351 | return err; |
| 1352 | |
| 1353 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, |
| 1354 | pool_type, &tc_index); |
| 1355 | if (err) |
| 1356 | return err; |
| 1357 | |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 1358 | if (!devlink->ops->sb_tc_pool_bind_get) |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1359 | return -EOPNOTSUPP; |
| 1360 | |
| 1361 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 1362 | if (!msg) |
| 1363 | return -ENOMEM; |
| 1364 | |
| 1365 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, devlink_port, |
| 1366 | devlink_sb, tc_index, pool_type, |
| 1367 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, |
| 1368 | info->snd_portid, |
| 1369 | info->snd_seq, 0); |
| 1370 | if (err) { |
| 1371 | nlmsg_free(msg); |
| 1372 | return err; |
| 1373 | } |
| 1374 | |
| 1375 | return genlmsg_reply(msg, info); |
| 1376 | } |
| 1377 | |
| 1378 | static int __sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, |
| 1379 | int start, int *p_idx, |
| 1380 | struct devlink *devlink, |
| 1381 | struct devlink_sb *devlink_sb, |
| 1382 | u32 portid, u32 seq) |
| 1383 | { |
| 1384 | struct devlink_port *devlink_port; |
| 1385 | u16 tc_index; |
| 1386 | int err; |
| 1387 | |
| 1388 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
| 1389 | for (tc_index = 0; |
| 1390 | tc_index < devlink_sb->ingress_tc_count; tc_index++) { |
| 1391 | if (*p_idx < start) { |
| 1392 | (*p_idx)++; |
| 1393 | continue; |
| 1394 | } |
| 1395 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, |
| 1396 | devlink_port, |
| 1397 | devlink_sb, |
| 1398 | tc_index, |
| 1399 | DEVLINK_SB_POOL_TYPE_INGRESS, |
| 1400 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, |
| 1401 | portid, seq, |
| 1402 | NLM_F_MULTI); |
| 1403 | if (err) |
| 1404 | return err; |
| 1405 | (*p_idx)++; |
| 1406 | } |
| 1407 | for (tc_index = 0; |
| 1408 | tc_index < devlink_sb->egress_tc_count; tc_index++) { |
| 1409 | if (*p_idx < start) { |
| 1410 | (*p_idx)++; |
| 1411 | continue; |
| 1412 | } |
| 1413 | err = devlink_nl_sb_tc_pool_bind_fill(msg, devlink, |
| 1414 | devlink_port, |
| 1415 | devlink_sb, |
| 1416 | tc_index, |
| 1417 | DEVLINK_SB_POOL_TYPE_EGRESS, |
| 1418 | DEVLINK_CMD_SB_TC_POOL_BIND_NEW, |
| 1419 | portid, seq, |
| 1420 | NLM_F_MULTI); |
| 1421 | if (err) |
| 1422 | return err; |
| 1423 | (*p_idx)++; |
| 1424 | } |
| 1425 | } |
| 1426 | return 0; |
| 1427 | } |
| 1428 | |
| 1429 | static int |
| 1430 | devlink_nl_cmd_sb_tc_pool_bind_get_dumpit(struct sk_buff *msg, |
| 1431 | struct netlink_callback *cb) |
| 1432 | { |
| 1433 | struct devlink *devlink; |
| 1434 | struct devlink_sb *devlink_sb; |
| 1435 | int start = cb->args[0]; |
| 1436 | int idx = 0; |
| 1437 | int err; |
| 1438 | |
| 1439 | mutex_lock(&devlink_mutex); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1440 | list_for_each_entry(devlink, &devlink_list, list) { |
| 1441 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk)) || |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 1442 | !devlink->ops->sb_tc_pool_bind_get) |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1443 | continue; |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 1444 | |
| 1445 | mutex_lock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1446 | list_for_each_entry(devlink_sb, &devlink->sb_list, list) { |
| 1447 | err = __sb_tc_pool_bind_get_dumpit(msg, start, &idx, |
| 1448 | devlink, |
| 1449 | devlink_sb, |
| 1450 | NETLINK_CB(cb->skb).portid, |
| 1451 | cb->nlh->nlmsg_seq); |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 1452 | if (err && err != -EOPNOTSUPP) { |
| 1453 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1454 | goto out; |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 1455 | } |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1456 | } |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 1457 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1458 | } |
| 1459 | out: |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1460 | mutex_unlock(&devlink_mutex); |
| 1461 | |
| 1462 | cb->args[0] = idx; |
| 1463 | return msg->len; |
| 1464 | } |
| 1465 | |
| 1466 | static int devlink_sb_tc_pool_bind_set(struct devlink_port *devlink_port, |
| 1467 | unsigned int sb_index, u16 tc_index, |
| 1468 | enum devlink_sb_pool_type pool_type, |
| 1469 | u16 pool_index, u32 threshold) |
| 1470 | |
| 1471 | { |
| 1472 | const struct devlink_ops *ops = devlink_port->devlink->ops; |
| 1473 | |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 1474 | if (ops->sb_tc_pool_bind_set) |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 1475 | return ops->sb_tc_pool_bind_set(devlink_port, sb_index, |
| 1476 | tc_index, pool_type, |
| 1477 | pool_index, threshold); |
| 1478 | return -EOPNOTSUPP; |
| 1479 | } |
| 1480 | |
| 1481 | static int devlink_nl_cmd_sb_tc_pool_bind_set_doit(struct sk_buff *skb, |
| 1482 | struct genl_info *info) |
| 1483 | { |
| 1484 | struct devlink_port *devlink_port = info->user_ptr[0]; |
| 1485 | struct devlink_sb *devlink_sb = info->user_ptr[1]; |
| 1486 | enum devlink_sb_pool_type pool_type; |
| 1487 | u16 tc_index; |
| 1488 | u16 pool_index; |
| 1489 | u32 threshold; |
| 1490 | int err; |
| 1491 | |
| 1492 | err = devlink_sb_pool_type_get_from_info(info, &pool_type); |
| 1493 | if (err) |
| 1494 | return err; |
| 1495 | |
| 1496 | err = devlink_sb_tc_index_get_from_info(devlink_sb, info, |
| 1497 | pool_type, &tc_index); |
| 1498 | if (err) |
| 1499 | return err; |
| 1500 | |
| 1501 | err = devlink_sb_pool_index_get_from_info(devlink_sb, info, |
| 1502 | &pool_index); |
| 1503 | if (err) |
| 1504 | return err; |
| 1505 | |
| 1506 | if (!info->attrs[DEVLINK_ATTR_SB_THRESHOLD]) |
| 1507 | return -EINVAL; |
| 1508 | |
| 1509 | threshold = nla_get_u32(info->attrs[DEVLINK_ATTR_SB_THRESHOLD]); |
| 1510 | return devlink_sb_tc_pool_bind_set(devlink_port, devlink_sb->index, |
| 1511 | tc_index, pool_type, |
| 1512 | pool_index, threshold); |
| 1513 | } |
| 1514 | |
Jiri Pirko | df38daf | 2016-04-14 18:19:14 +0200 | [diff] [blame] | 1515 | static int devlink_nl_cmd_sb_occ_snapshot_doit(struct sk_buff *skb, |
| 1516 | struct genl_info *info) |
| 1517 | { |
| 1518 | struct devlink *devlink = info->user_ptr[0]; |
| 1519 | struct devlink_sb *devlink_sb = info->user_ptr[1]; |
| 1520 | const struct devlink_ops *ops = devlink->ops; |
| 1521 | |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 1522 | if (ops->sb_occ_snapshot) |
Jiri Pirko | df38daf | 2016-04-14 18:19:14 +0200 | [diff] [blame] | 1523 | return ops->sb_occ_snapshot(devlink, devlink_sb->index); |
| 1524 | return -EOPNOTSUPP; |
| 1525 | } |
| 1526 | |
| 1527 | static int devlink_nl_cmd_sb_occ_max_clear_doit(struct sk_buff *skb, |
| 1528 | struct genl_info *info) |
| 1529 | { |
| 1530 | struct devlink *devlink = info->user_ptr[0]; |
| 1531 | struct devlink_sb *devlink_sb = info->user_ptr[1]; |
| 1532 | const struct devlink_ops *ops = devlink->ops; |
| 1533 | |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 1534 | if (ops->sb_occ_max_clear) |
Jiri Pirko | df38daf | 2016-04-14 18:19:14 +0200 | [diff] [blame] | 1535 | return ops->sb_occ_max_clear(devlink, devlink_sb->index); |
| 1536 | return -EOPNOTSUPP; |
| 1537 | } |
| 1538 | |
Jiri Pirko | 21e3d2d | 2017-02-09 15:54:34 +0100 | [diff] [blame] | 1539 | static int devlink_nl_eswitch_fill(struct sk_buff *msg, struct devlink *devlink, |
| 1540 | enum devlink_command cmd, u32 portid, |
| 1541 | u32 seq, int flags) |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1542 | { |
Roi Dayan | 59bfde0 | 2016-11-22 23:09:57 +0200 | [diff] [blame] | 1543 | const struct devlink_ops *ops = devlink->ops; |
Roi Dayan | f43e9b0 | 2016-09-25 13:52:44 +0300 | [diff] [blame] | 1544 | u8 inline_mode, encap_mode; |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1545 | void *hdr; |
Roi Dayan | 59bfde0 | 2016-11-22 23:09:57 +0200 | [diff] [blame] | 1546 | int err = 0; |
| 1547 | u16 mode; |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1548 | |
| 1549 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); |
| 1550 | if (!hdr) |
| 1551 | return -EMSGSIZE; |
| 1552 | |
Roi Dayan | 59bfde0 | 2016-11-22 23:09:57 +0200 | [diff] [blame] | 1553 | err = devlink_nl_put_handle(msg, devlink); |
| 1554 | if (err) |
Jiri Pirko | 1a6aa36 | 2017-02-09 15:54:35 +0100 | [diff] [blame] | 1555 | goto nla_put_failure; |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1556 | |
Jiri Pirko | 4456f61 | 2017-02-09 15:54:36 +0100 | [diff] [blame] | 1557 | if (ops->eswitch_mode_get) { |
| 1558 | err = ops->eswitch_mode_get(devlink, &mode); |
| 1559 | if (err) |
| 1560 | goto nla_put_failure; |
| 1561 | err = nla_put_u16(msg, DEVLINK_ATTR_ESWITCH_MODE, mode); |
| 1562 | if (err) |
| 1563 | goto nla_put_failure; |
| 1564 | } |
Roi Dayan | 59bfde0 | 2016-11-22 23:09:57 +0200 | [diff] [blame] | 1565 | |
| 1566 | if (ops->eswitch_inline_mode_get) { |
| 1567 | err = ops->eswitch_inline_mode_get(devlink, &inline_mode); |
| 1568 | if (err) |
Jiri Pirko | 1a6aa36 | 2017-02-09 15:54:35 +0100 | [diff] [blame] | 1569 | goto nla_put_failure; |
Roi Dayan | 59bfde0 | 2016-11-22 23:09:57 +0200 | [diff] [blame] | 1570 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_INLINE_MODE, |
| 1571 | inline_mode); |
| 1572 | if (err) |
Jiri Pirko | 1a6aa36 | 2017-02-09 15:54:35 +0100 | [diff] [blame] | 1573 | goto nla_put_failure; |
Roi Dayan | 59bfde0 | 2016-11-22 23:09:57 +0200 | [diff] [blame] | 1574 | } |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1575 | |
Roi Dayan | f43e9b0 | 2016-09-25 13:52:44 +0300 | [diff] [blame] | 1576 | if (ops->eswitch_encap_mode_get) { |
| 1577 | err = ops->eswitch_encap_mode_get(devlink, &encap_mode); |
| 1578 | if (err) |
| 1579 | goto nla_put_failure; |
| 1580 | err = nla_put_u8(msg, DEVLINK_ATTR_ESWITCH_ENCAP_MODE, encap_mode); |
| 1581 | if (err) |
| 1582 | goto nla_put_failure; |
| 1583 | } |
| 1584 | |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1585 | genlmsg_end(msg, hdr); |
| 1586 | return 0; |
| 1587 | |
Jiri Pirko | 1a6aa36 | 2017-02-09 15:54:35 +0100 | [diff] [blame] | 1588 | nla_put_failure: |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1589 | genlmsg_cancel(msg, hdr); |
Roi Dayan | 59bfde0 | 2016-11-22 23:09:57 +0200 | [diff] [blame] | 1590 | return err; |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1591 | } |
| 1592 | |
Jiri Pirko | adf200f | 2017-02-09 15:54:33 +0100 | [diff] [blame] | 1593 | static int devlink_nl_cmd_eswitch_get_doit(struct sk_buff *skb, |
| 1594 | struct genl_info *info) |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1595 | { |
| 1596 | struct devlink *devlink = info->user_ptr[0]; |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1597 | struct sk_buff *msg; |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1598 | int err; |
| 1599 | |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1600 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 1601 | if (!msg) |
| 1602 | return -ENOMEM; |
| 1603 | |
Jiri Pirko | 21e3d2d | 2017-02-09 15:54:34 +0100 | [diff] [blame] | 1604 | err = devlink_nl_eswitch_fill(msg, devlink, DEVLINK_CMD_ESWITCH_GET, |
| 1605 | info->snd_portid, info->snd_seq, 0); |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1606 | |
| 1607 | if (err) { |
| 1608 | nlmsg_free(msg); |
| 1609 | return err; |
| 1610 | } |
| 1611 | |
| 1612 | return genlmsg_reply(msg, info); |
| 1613 | } |
| 1614 | |
Jiri Pirko | adf200f | 2017-02-09 15:54:33 +0100 | [diff] [blame] | 1615 | static int devlink_nl_cmd_eswitch_set_doit(struct sk_buff *skb, |
| 1616 | struct genl_info *info) |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1617 | { |
| 1618 | struct devlink *devlink = info->user_ptr[0]; |
| 1619 | const struct devlink_ops *ops = devlink->ops; |
Roi Dayan | f43e9b0 | 2016-09-25 13:52:44 +0300 | [diff] [blame] | 1620 | u8 inline_mode, encap_mode; |
Roi Dayan | 59bfde0 | 2016-11-22 23:09:57 +0200 | [diff] [blame] | 1621 | int err = 0; |
Roi Dayan | f43e9b0 | 2016-09-25 13:52:44 +0300 | [diff] [blame] | 1622 | u16 mode; |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1623 | |
Roi Dayan | 59bfde0 | 2016-11-22 23:09:57 +0200 | [diff] [blame] | 1624 | if (info->attrs[DEVLINK_ATTR_ESWITCH_MODE]) { |
| 1625 | if (!ops->eswitch_mode_set) |
| 1626 | return -EOPNOTSUPP; |
| 1627 | mode = nla_get_u16(info->attrs[DEVLINK_ATTR_ESWITCH_MODE]); |
Eli Britstein | db7ff19 | 2018-08-15 16:02:18 +0300 | [diff] [blame] | 1628 | err = ops->eswitch_mode_set(devlink, mode, info->extack); |
Roi Dayan | 59bfde0 | 2016-11-22 23:09:57 +0200 | [diff] [blame] | 1629 | if (err) |
| 1630 | return err; |
| 1631 | } |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1632 | |
Roi Dayan | 59bfde0 | 2016-11-22 23:09:57 +0200 | [diff] [blame] | 1633 | if (info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]) { |
| 1634 | if (!ops->eswitch_inline_mode_set) |
| 1635 | return -EOPNOTSUPP; |
| 1636 | inline_mode = nla_get_u8( |
| 1637 | info->attrs[DEVLINK_ATTR_ESWITCH_INLINE_MODE]); |
Eli Britstein | db7ff19 | 2018-08-15 16:02:18 +0300 | [diff] [blame] | 1638 | err = ops->eswitch_inline_mode_set(devlink, inline_mode, |
| 1639 | info->extack); |
Roi Dayan | 59bfde0 | 2016-11-22 23:09:57 +0200 | [diff] [blame] | 1640 | if (err) |
| 1641 | return err; |
| 1642 | } |
Roi Dayan | f43e9b0 | 2016-09-25 13:52:44 +0300 | [diff] [blame] | 1643 | |
| 1644 | if (info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]) { |
| 1645 | if (!ops->eswitch_encap_mode_set) |
| 1646 | return -EOPNOTSUPP; |
| 1647 | encap_mode = nla_get_u8(info->attrs[DEVLINK_ATTR_ESWITCH_ENCAP_MODE]); |
Eli Britstein | db7ff19 | 2018-08-15 16:02:18 +0300 | [diff] [blame] | 1648 | err = ops->eswitch_encap_mode_set(devlink, encap_mode, |
| 1649 | info->extack); |
Roi Dayan | f43e9b0 | 2016-09-25 13:52:44 +0300 | [diff] [blame] | 1650 | if (err) |
| 1651 | return err; |
| 1652 | } |
| 1653 | |
Roi Dayan | 59bfde0 | 2016-11-22 23:09:57 +0200 | [diff] [blame] | 1654 | return 0; |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 1655 | } |
| 1656 | |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 1657 | int devlink_dpipe_match_put(struct sk_buff *skb, |
| 1658 | struct devlink_dpipe_match *match) |
| 1659 | { |
| 1660 | struct devlink_dpipe_header *header = match->header; |
| 1661 | struct devlink_dpipe_field *field = &header->fields[match->field_id]; |
| 1662 | struct nlattr *match_attr; |
| 1663 | |
| 1664 | match_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_MATCH); |
| 1665 | if (!match_attr) |
| 1666 | return -EMSGSIZE; |
| 1667 | |
| 1668 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_MATCH_TYPE, match->type) || |
| 1669 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, match->header_index) || |
| 1670 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || |
| 1671 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || |
| 1672 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) |
| 1673 | goto nla_put_failure; |
| 1674 | |
| 1675 | nla_nest_end(skb, match_attr); |
| 1676 | return 0; |
| 1677 | |
| 1678 | nla_put_failure: |
| 1679 | nla_nest_cancel(skb, match_attr); |
| 1680 | return -EMSGSIZE; |
| 1681 | } |
| 1682 | EXPORT_SYMBOL_GPL(devlink_dpipe_match_put); |
| 1683 | |
| 1684 | static int devlink_dpipe_matches_put(struct devlink_dpipe_table *table, |
| 1685 | struct sk_buff *skb) |
| 1686 | { |
| 1687 | struct nlattr *matches_attr; |
| 1688 | |
| 1689 | matches_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE_MATCHES); |
| 1690 | if (!matches_attr) |
| 1691 | return -EMSGSIZE; |
| 1692 | |
| 1693 | if (table->table_ops->matches_dump(table->priv, skb)) |
| 1694 | goto nla_put_failure; |
| 1695 | |
| 1696 | nla_nest_end(skb, matches_attr); |
| 1697 | return 0; |
| 1698 | |
| 1699 | nla_put_failure: |
| 1700 | nla_nest_cancel(skb, matches_attr); |
| 1701 | return -EMSGSIZE; |
| 1702 | } |
| 1703 | |
| 1704 | int devlink_dpipe_action_put(struct sk_buff *skb, |
| 1705 | struct devlink_dpipe_action *action) |
| 1706 | { |
| 1707 | struct devlink_dpipe_header *header = action->header; |
| 1708 | struct devlink_dpipe_field *field = &header->fields[action->field_id]; |
| 1709 | struct nlattr *action_attr; |
| 1710 | |
| 1711 | action_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_ACTION); |
| 1712 | if (!action_attr) |
| 1713 | return -EMSGSIZE; |
| 1714 | |
| 1715 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_ACTION_TYPE, action->type) || |
| 1716 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_INDEX, action->header_index) || |
| 1717 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || |
| 1718 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || |
| 1719 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) |
| 1720 | goto nla_put_failure; |
| 1721 | |
| 1722 | nla_nest_end(skb, action_attr); |
| 1723 | return 0; |
| 1724 | |
| 1725 | nla_put_failure: |
| 1726 | nla_nest_cancel(skb, action_attr); |
| 1727 | return -EMSGSIZE; |
| 1728 | } |
| 1729 | EXPORT_SYMBOL_GPL(devlink_dpipe_action_put); |
| 1730 | |
| 1731 | static int devlink_dpipe_actions_put(struct devlink_dpipe_table *table, |
| 1732 | struct sk_buff *skb) |
| 1733 | { |
| 1734 | struct nlattr *actions_attr; |
| 1735 | |
| 1736 | actions_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE_ACTIONS); |
| 1737 | if (!actions_attr) |
| 1738 | return -EMSGSIZE; |
| 1739 | |
| 1740 | if (table->table_ops->actions_dump(table->priv, skb)) |
| 1741 | goto nla_put_failure; |
| 1742 | |
| 1743 | nla_nest_end(skb, actions_attr); |
| 1744 | return 0; |
| 1745 | |
| 1746 | nla_put_failure: |
| 1747 | nla_nest_cancel(skb, actions_attr); |
| 1748 | return -EMSGSIZE; |
| 1749 | } |
| 1750 | |
| 1751 | static int devlink_dpipe_table_put(struct sk_buff *skb, |
| 1752 | struct devlink_dpipe_table *table) |
| 1753 | { |
| 1754 | struct nlattr *table_attr; |
Arkadi Sharshevsky | ffd3cdc | 2017-08-24 08:40:02 +0200 | [diff] [blame] | 1755 | u64 table_size; |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 1756 | |
Arkadi Sharshevsky | ffd3cdc | 2017-08-24 08:40:02 +0200 | [diff] [blame] | 1757 | table_size = table->table_ops->size_get(table->priv); |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 1758 | table_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLE); |
| 1759 | if (!table_attr) |
| 1760 | return -EMSGSIZE; |
| 1761 | |
| 1762 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_TABLE_NAME, table->name) || |
Arkadi Sharshevsky | ffd3cdc | 2017-08-24 08:40:02 +0200 | [diff] [blame] | 1763 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_SIZE, table_size, |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 1764 | DEVLINK_ATTR_PAD)) |
| 1765 | goto nla_put_failure; |
| 1766 | if (nla_put_u8(skb, DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED, |
| 1767 | table->counters_enabled)) |
| 1768 | goto nla_put_failure; |
| 1769 | |
Arkadi Sharshevsky | 56dc7cd | 2018-01-15 08:59:05 +0100 | [diff] [blame] | 1770 | if (table->resource_valid) { |
Arkadi Sharshevsky | 3d18e4f | 2018-02-26 18:25:42 +0200 | [diff] [blame] | 1771 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_ID, |
| 1772 | table->resource_id, DEVLINK_ATTR_PAD) || |
| 1773 | nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_TABLE_RESOURCE_UNITS, |
| 1774 | table->resource_units, DEVLINK_ATTR_PAD)) |
| 1775 | goto nla_put_failure; |
Arkadi Sharshevsky | 56dc7cd | 2018-01-15 08:59:05 +0100 | [diff] [blame] | 1776 | } |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 1777 | if (devlink_dpipe_matches_put(table, skb)) |
| 1778 | goto nla_put_failure; |
| 1779 | |
| 1780 | if (devlink_dpipe_actions_put(table, skb)) |
| 1781 | goto nla_put_failure; |
| 1782 | |
| 1783 | nla_nest_end(skb, table_attr); |
| 1784 | return 0; |
| 1785 | |
| 1786 | nla_put_failure: |
| 1787 | nla_nest_cancel(skb, table_attr); |
| 1788 | return -EMSGSIZE; |
| 1789 | } |
| 1790 | |
| 1791 | static int devlink_dpipe_send_and_alloc_skb(struct sk_buff **pskb, |
| 1792 | struct genl_info *info) |
| 1793 | { |
| 1794 | int err; |
| 1795 | |
| 1796 | if (*pskb) { |
| 1797 | err = genlmsg_reply(*pskb, info); |
| 1798 | if (err) |
| 1799 | return err; |
| 1800 | } |
| 1801 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 1802 | if (!*pskb) |
| 1803 | return -ENOMEM; |
| 1804 | return 0; |
| 1805 | } |
| 1806 | |
| 1807 | static int devlink_dpipe_tables_fill(struct genl_info *info, |
| 1808 | enum devlink_command cmd, int flags, |
| 1809 | struct list_head *dpipe_tables, |
| 1810 | const char *table_name) |
| 1811 | { |
| 1812 | struct devlink *devlink = info->user_ptr[0]; |
| 1813 | struct devlink_dpipe_table *table; |
| 1814 | struct nlattr *tables_attr; |
| 1815 | struct sk_buff *skb = NULL; |
| 1816 | struct nlmsghdr *nlh; |
| 1817 | bool incomplete; |
| 1818 | void *hdr; |
| 1819 | int i; |
| 1820 | int err; |
| 1821 | |
| 1822 | table = list_first_entry(dpipe_tables, |
| 1823 | struct devlink_dpipe_table, list); |
| 1824 | start_again: |
| 1825 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); |
| 1826 | if (err) |
| 1827 | return err; |
| 1828 | |
| 1829 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, |
| 1830 | &devlink_nl_family, NLM_F_MULTI, cmd); |
Haishuang Yan | 6044bd4 | 2017-06-05 08:57:21 +0800 | [diff] [blame] | 1831 | if (!hdr) { |
| 1832 | nlmsg_free(skb); |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 1833 | return -EMSGSIZE; |
Haishuang Yan | 6044bd4 | 2017-06-05 08:57:21 +0800 | [diff] [blame] | 1834 | } |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 1835 | |
| 1836 | if (devlink_nl_put_handle(skb, devlink)) |
| 1837 | goto nla_put_failure; |
| 1838 | tables_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_TABLES); |
| 1839 | if (!tables_attr) |
| 1840 | goto nla_put_failure; |
| 1841 | |
| 1842 | i = 0; |
| 1843 | incomplete = false; |
| 1844 | list_for_each_entry_from(table, dpipe_tables, list) { |
| 1845 | if (!table_name) { |
| 1846 | err = devlink_dpipe_table_put(skb, table); |
| 1847 | if (err) { |
| 1848 | if (!i) |
| 1849 | goto err_table_put; |
| 1850 | incomplete = true; |
| 1851 | break; |
| 1852 | } |
| 1853 | } else { |
| 1854 | if (!strcmp(table->name, table_name)) { |
| 1855 | err = devlink_dpipe_table_put(skb, table); |
| 1856 | if (err) |
| 1857 | break; |
| 1858 | } |
| 1859 | } |
| 1860 | i++; |
| 1861 | } |
| 1862 | |
| 1863 | nla_nest_end(skb, tables_attr); |
| 1864 | genlmsg_end(skb, hdr); |
| 1865 | if (incomplete) |
| 1866 | goto start_again; |
| 1867 | |
| 1868 | send_done: |
| 1869 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, |
| 1870 | NLMSG_DONE, 0, flags | NLM_F_MULTI); |
| 1871 | if (!nlh) { |
| 1872 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); |
| 1873 | if (err) |
Arkadi Sharshevsky | 7fe4d6d | 2018-03-18 17:37:22 +0200 | [diff] [blame] | 1874 | return err; |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 1875 | goto send_done; |
| 1876 | } |
| 1877 | |
| 1878 | return genlmsg_reply(skb, info); |
| 1879 | |
| 1880 | nla_put_failure: |
| 1881 | err = -EMSGSIZE; |
| 1882 | err_table_put: |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 1883 | nlmsg_free(skb); |
| 1884 | return err; |
| 1885 | } |
| 1886 | |
| 1887 | static int devlink_nl_cmd_dpipe_table_get(struct sk_buff *skb, |
| 1888 | struct genl_info *info) |
| 1889 | { |
| 1890 | struct devlink *devlink = info->user_ptr[0]; |
| 1891 | const char *table_name = NULL; |
| 1892 | |
| 1893 | if (info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) |
| 1894 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); |
| 1895 | |
| 1896 | return devlink_dpipe_tables_fill(info, DEVLINK_CMD_DPIPE_TABLE_GET, 0, |
| 1897 | &devlink->dpipe_table_list, |
| 1898 | table_name); |
| 1899 | } |
| 1900 | |
| 1901 | static int devlink_dpipe_value_put(struct sk_buff *skb, |
| 1902 | struct devlink_dpipe_value *value) |
| 1903 | { |
| 1904 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE, |
| 1905 | value->value_size, value->value)) |
| 1906 | return -EMSGSIZE; |
| 1907 | if (value->mask) |
| 1908 | if (nla_put(skb, DEVLINK_ATTR_DPIPE_VALUE_MASK, |
| 1909 | value->value_size, value->mask)) |
| 1910 | return -EMSGSIZE; |
| 1911 | if (value->mapping_valid) |
| 1912 | if (nla_put_u32(skb, DEVLINK_ATTR_DPIPE_VALUE_MAPPING, |
| 1913 | value->mapping_value)) |
| 1914 | return -EMSGSIZE; |
| 1915 | return 0; |
| 1916 | } |
| 1917 | |
| 1918 | static int devlink_dpipe_action_value_put(struct sk_buff *skb, |
| 1919 | struct devlink_dpipe_value *value) |
| 1920 | { |
| 1921 | if (!value->action) |
| 1922 | return -EINVAL; |
| 1923 | if (devlink_dpipe_action_put(skb, value->action)) |
| 1924 | return -EMSGSIZE; |
| 1925 | if (devlink_dpipe_value_put(skb, value)) |
| 1926 | return -EMSGSIZE; |
| 1927 | return 0; |
| 1928 | } |
| 1929 | |
| 1930 | static int devlink_dpipe_action_values_put(struct sk_buff *skb, |
| 1931 | struct devlink_dpipe_value *values, |
| 1932 | unsigned int values_count) |
| 1933 | { |
| 1934 | struct nlattr *action_attr; |
| 1935 | int i; |
| 1936 | int err; |
| 1937 | |
| 1938 | for (i = 0; i < values_count; i++) { |
| 1939 | action_attr = nla_nest_start(skb, |
| 1940 | DEVLINK_ATTR_DPIPE_ACTION_VALUE); |
| 1941 | if (!action_attr) |
| 1942 | return -EMSGSIZE; |
| 1943 | err = devlink_dpipe_action_value_put(skb, &values[i]); |
| 1944 | if (err) |
| 1945 | goto err_action_value_put; |
| 1946 | nla_nest_end(skb, action_attr); |
| 1947 | } |
| 1948 | return 0; |
| 1949 | |
| 1950 | err_action_value_put: |
| 1951 | nla_nest_cancel(skb, action_attr); |
| 1952 | return err; |
| 1953 | } |
| 1954 | |
| 1955 | static int devlink_dpipe_match_value_put(struct sk_buff *skb, |
| 1956 | struct devlink_dpipe_value *value) |
| 1957 | { |
| 1958 | if (!value->match) |
| 1959 | return -EINVAL; |
| 1960 | if (devlink_dpipe_match_put(skb, value->match)) |
| 1961 | return -EMSGSIZE; |
| 1962 | if (devlink_dpipe_value_put(skb, value)) |
| 1963 | return -EMSGSIZE; |
| 1964 | return 0; |
| 1965 | } |
| 1966 | |
| 1967 | static int devlink_dpipe_match_values_put(struct sk_buff *skb, |
| 1968 | struct devlink_dpipe_value *values, |
| 1969 | unsigned int values_count) |
| 1970 | { |
| 1971 | struct nlattr *match_attr; |
| 1972 | int i; |
| 1973 | int err; |
| 1974 | |
| 1975 | for (i = 0; i < values_count; i++) { |
| 1976 | match_attr = nla_nest_start(skb, |
| 1977 | DEVLINK_ATTR_DPIPE_MATCH_VALUE); |
| 1978 | if (!match_attr) |
| 1979 | return -EMSGSIZE; |
| 1980 | err = devlink_dpipe_match_value_put(skb, &values[i]); |
| 1981 | if (err) |
| 1982 | goto err_match_value_put; |
| 1983 | nla_nest_end(skb, match_attr); |
| 1984 | } |
| 1985 | return 0; |
| 1986 | |
| 1987 | err_match_value_put: |
| 1988 | nla_nest_cancel(skb, match_attr); |
| 1989 | return err; |
| 1990 | } |
| 1991 | |
| 1992 | static int devlink_dpipe_entry_put(struct sk_buff *skb, |
| 1993 | struct devlink_dpipe_entry *entry) |
| 1994 | { |
| 1995 | struct nlattr *entry_attr, *matches_attr, *actions_attr; |
| 1996 | int err; |
| 1997 | |
| 1998 | entry_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_ENTRY); |
| 1999 | if (!entry_attr) |
| 2000 | return -EMSGSIZE; |
| 2001 | |
| 2002 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_INDEX, entry->index, |
| 2003 | DEVLINK_ATTR_PAD)) |
| 2004 | goto nla_put_failure; |
| 2005 | if (entry->counter_valid) |
| 2006 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_DPIPE_ENTRY_COUNTER, |
| 2007 | entry->counter, DEVLINK_ATTR_PAD)) |
| 2008 | goto nla_put_failure; |
| 2009 | |
| 2010 | matches_attr = nla_nest_start(skb, |
| 2011 | DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES); |
| 2012 | if (!matches_attr) |
| 2013 | goto nla_put_failure; |
| 2014 | |
| 2015 | err = devlink_dpipe_match_values_put(skb, entry->match_values, |
| 2016 | entry->match_values_count); |
| 2017 | if (err) { |
| 2018 | nla_nest_cancel(skb, matches_attr); |
| 2019 | goto err_match_values_put; |
| 2020 | } |
| 2021 | nla_nest_end(skb, matches_attr); |
| 2022 | |
| 2023 | actions_attr = nla_nest_start(skb, |
| 2024 | DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES); |
| 2025 | if (!actions_attr) |
| 2026 | goto nla_put_failure; |
| 2027 | |
| 2028 | err = devlink_dpipe_action_values_put(skb, entry->action_values, |
| 2029 | entry->action_values_count); |
| 2030 | if (err) { |
| 2031 | nla_nest_cancel(skb, actions_attr); |
| 2032 | goto err_action_values_put; |
| 2033 | } |
| 2034 | nla_nest_end(skb, actions_attr); |
| 2035 | |
| 2036 | nla_nest_end(skb, entry_attr); |
| 2037 | return 0; |
| 2038 | |
| 2039 | nla_put_failure: |
| 2040 | err = -EMSGSIZE; |
| 2041 | err_match_values_put: |
| 2042 | err_action_values_put: |
| 2043 | nla_nest_cancel(skb, entry_attr); |
| 2044 | return err; |
| 2045 | } |
| 2046 | |
| 2047 | static struct devlink_dpipe_table * |
| 2048 | devlink_dpipe_table_find(struct list_head *dpipe_tables, |
| 2049 | const char *table_name) |
| 2050 | { |
| 2051 | struct devlink_dpipe_table *table; |
| 2052 | |
| 2053 | list_for_each_entry_rcu(table, dpipe_tables, list) { |
| 2054 | if (!strcmp(table->name, table_name)) |
| 2055 | return table; |
| 2056 | } |
| 2057 | return NULL; |
| 2058 | } |
| 2059 | |
| 2060 | int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx) |
| 2061 | { |
| 2062 | struct devlink *devlink; |
| 2063 | int err; |
| 2064 | |
| 2065 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx->skb, |
| 2066 | dump_ctx->info); |
| 2067 | if (err) |
| 2068 | return err; |
| 2069 | |
| 2070 | dump_ctx->hdr = genlmsg_put(dump_ctx->skb, |
| 2071 | dump_ctx->info->snd_portid, |
| 2072 | dump_ctx->info->snd_seq, |
| 2073 | &devlink_nl_family, NLM_F_MULTI, |
| 2074 | dump_ctx->cmd); |
| 2075 | if (!dump_ctx->hdr) |
| 2076 | goto nla_put_failure; |
| 2077 | |
| 2078 | devlink = dump_ctx->info->user_ptr[0]; |
| 2079 | if (devlink_nl_put_handle(dump_ctx->skb, devlink)) |
| 2080 | goto nla_put_failure; |
| 2081 | dump_ctx->nest = nla_nest_start(dump_ctx->skb, |
| 2082 | DEVLINK_ATTR_DPIPE_ENTRIES); |
| 2083 | if (!dump_ctx->nest) |
| 2084 | goto nla_put_failure; |
| 2085 | return 0; |
| 2086 | |
| 2087 | nla_put_failure: |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 2088 | nlmsg_free(dump_ctx->skb); |
| 2089 | return -EMSGSIZE; |
| 2090 | } |
| 2091 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_prepare); |
| 2092 | |
| 2093 | int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, |
| 2094 | struct devlink_dpipe_entry *entry) |
| 2095 | { |
| 2096 | return devlink_dpipe_entry_put(dump_ctx->skb, entry); |
| 2097 | } |
| 2098 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_append); |
| 2099 | |
| 2100 | int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx) |
| 2101 | { |
| 2102 | nla_nest_end(dump_ctx->skb, dump_ctx->nest); |
| 2103 | genlmsg_end(dump_ctx->skb, dump_ctx->hdr); |
| 2104 | return 0; |
| 2105 | } |
| 2106 | EXPORT_SYMBOL_GPL(devlink_dpipe_entry_ctx_close); |
| 2107 | |
Arkadi Sharshevsky | 3580732 | 2017-08-24 08:40:03 +0200 | [diff] [blame] | 2108 | void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry) |
| 2109 | |
| 2110 | { |
| 2111 | unsigned int value_count, value_index; |
| 2112 | struct devlink_dpipe_value *value; |
| 2113 | |
| 2114 | value = entry->action_values; |
| 2115 | value_count = entry->action_values_count; |
| 2116 | for (value_index = 0; value_index < value_count; value_index++) { |
| 2117 | kfree(value[value_index].value); |
| 2118 | kfree(value[value_index].mask); |
| 2119 | } |
| 2120 | |
| 2121 | value = entry->match_values; |
| 2122 | value_count = entry->match_values_count; |
| 2123 | for (value_index = 0; value_index < value_count; value_index++) { |
| 2124 | kfree(value[value_index].value); |
| 2125 | kfree(value[value_index].mask); |
| 2126 | } |
| 2127 | } |
| 2128 | EXPORT_SYMBOL(devlink_dpipe_entry_clear); |
| 2129 | |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 2130 | static int devlink_dpipe_entries_fill(struct genl_info *info, |
| 2131 | enum devlink_command cmd, int flags, |
| 2132 | struct devlink_dpipe_table *table) |
| 2133 | { |
| 2134 | struct devlink_dpipe_dump_ctx dump_ctx; |
| 2135 | struct nlmsghdr *nlh; |
| 2136 | int err; |
| 2137 | |
| 2138 | dump_ctx.skb = NULL; |
| 2139 | dump_ctx.cmd = cmd; |
| 2140 | dump_ctx.info = info; |
| 2141 | |
| 2142 | err = table->table_ops->entries_dump(table->priv, |
| 2143 | table->counters_enabled, |
| 2144 | &dump_ctx); |
| 2145 | if (err) |
Arkadi Sharshevsky | 7fe4d6d | 2018-03-18 17:37:22 +0200 | [diff] [blame] | 2146 | return err; |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 2147 | |
| 2148 | send_done: |
| 2149 | nlh = nlmsg_put(dump_ctx.skb, info->snd_portid, info->snd_seq, |
| 2150 | NLMSG_DONE, 0, flags | NLM_F_MULTI); |
| 2151 | if (!nlh) { |
| 2152 | err = devlink_dpipe_send_and_alloc_skb(&dump_ctx.skb, info); |
| 2153 | if (err) |
Arkadi Sharshevsky | 7fe4d6d | 2018-03-18 17:37:22 +0200 | [diff] [blame] | 2154 | return err; |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 2155 | goto send_done; |
| 2156 | } |
| 2157 | return genlmsg_reply(dump_ctx.skb, info); |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 2158 | } |
| 2159 | |
| 2160 | static int devlink_nl_cmd_dpipe_entries_get(struct sk_buff *skb, |
| 2161 | struct genl_info *info) |
| 2162 | { |
| 2163 | struct devlink *devlink = info->user_ptr[0]; |
| 2164 | struct devlink_dpipe_table *table; |
| 2165 | const char *table_name; |
| 2166 | |
| 2167 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]) |
| 2168 | return -EINVAL; |
| 2169 | |
| 2170 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); |
| 2171 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
| 2172 | table_name); |
| 2173 | if (!table) |
| 2174 | return -EINVAL; |
| 2175 | |
| 2176 | if (!table->table_ops->entries_dump) |
| 2177 | return -EINVAL; |
| 2178 | |
| 2179 | return devlink_dpipe_entries_fill(info, DEVLINK_CMD_DPIPE_ENTRIES_GET, |
| 2180 | 0, table); |
| 2181 | } |
| 2182 | |
| 2183 | static int devlink_dpipe_fields_put(struct sk_buff *skb, |
| 2184 | const struct devlink_dpipe_header *header) |
| 2185 | { |
| 2186 | struct devlink_dpipe_field *field; |
| 2187 | struct nlattr *field_attr; |
| 2188 | int i; |
| 2189 | |
| 2190 | for (i = 0; i < header->fields_count; i++) { |
| 2191 | field = &header->fields[i]; |
| 2192 | field_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_FIELD); |
| 2193 | if (!field_attr) |
| 2194 | return -EMSGSIZE; |
| 2195 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_FIELD_NAME, field->name) || |
| 2196 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_ID, field->id) || |
| 2197 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH, field->bitwidth) || |
| 2198 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE, field->mapping_type)) |
| 2199 | goto nla_put_failure; |
| 2200 | nla_nest_end(skb, field_attr); |
| 2201 | } |
| 2202 | return 0; |
| 2203 | |
| 2204 | nla_put_failure: |
| 2205 | nla_nest_cancel(skb, field_attr); |
| 2206 | return -EMSGSIZE; |
| 2207 | } |
| 2208 | |
| 2209 | static int devlink_dpipe_header_put(struct sk_buff *skb, |
| 2210 | struct devlink_dpipe_header *header) |
| 2211 | { |
| 2212 | struct nlattr *fields_attr, *header_attr; |
| 2213 | int err; |
| 2214 | |
| 2215 | header_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADER); |
Wei Yongjun | cb6bf9c | 2017-04-11 16:02:02 +0000 | [diff] [blame] | 2216 | if (!header_attr) |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 2217 | return -EMSGSIZE; |
| 2218 | |
| 2219 | if (nla_put_string(skb, DEVLINK_ATTR_DPIPE_HEADER_NAME, header->name) || |
| 2220 | nla_put_u32(skb, DEVLINK_ATTR_DPIPE_HEADER_ID, header->id) || |
| 2221 | nla_put_u8(skb, DEVLINK_ATTR_DPIPE_HEADER_GLOBAL, header->global)) |
| 2222 | goto nla_put_failure; |
| 2223 | |
| 2224 | fields_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADER_FIELDS); |
| 2225 | if (!fields_attr) |
| 2226 | goto nla_put_failure; |
| 2227 | |
| 2228 | err = devlink_dpipe_fields_put(skb, header); |
| 2229 | if (err) { |
| 2230 | nla_nest_cancel(skb, fields_attr); |
| 2231 | goto nla_put_failure; |
| 2232 | } |
| 2233 | nla_nest_end(skb, fields_attr); |
| 2234 | nla_nest_end(skb, header_attr); |
| 2235 | return 0; |
| 2236 | |
| 2237 | nla_put_failure: |
| 2238 | err = -EMSGSIZE; |
| 2239 | nla_nest_cancel(skb, header_attr); |
| 2240 | return err; |
| 2241 | } |
| 2242 | |
| 2243 | static int devlink_dpipe_headers_fill(struct genl_info *info, |
| 2244 | enum devlink_command cmd, int flags, |
| 2245 | struct devlink_dpipe_headers * |
| 2246 | dpipe_headers) |
| 2247 | { |
| 2248 | struct devlink *devlink = info->user_ptr[0]; |
| 2249 | struct nlattr *headers_attr; |
| 2250 | struct sk_buff *skb = NULL; |
| 2251 | struct nlmsghdr *nlh; |
| 2252 | void *hdr; |
| 2253 | int i, j; |
| 2254 | int err; |
| 2255 | |
| 2256 | i = 0; |
| 2257 | start_again: |
| 2258 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); |
| 2259 | if (err) |
| 2260 | return err; |
| 2261 | |
| 2262 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, |
| 2263 | &devlink_nl_family, NLM_F_MULTI, cmd); |
Haishuang Yan | 6044bd4 | 2017-06-05 08:57:21 +0800 | [diff] [blame] | 2264 | if (!hdr) { |
| 2265 | nlmsg_free(skb); |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 2266 | return -EMSGSIZE; |
Haishuang Yan | 6044bd4 | 2017-06-05 08:57:21 +0800 | [diff] [blame] | 2267 | } |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 2268 | |
| 2269 | if (devlink_nl_put_handle(skb, devlink)) |
| 2270 | goto nla_put_failure; |
| 2271 | headers_attr = nla_nest_start(skb, DEVLINK_ATTR_DPIPE_HEADERS); |
| 2272 | if (!headers_attr) |
| 2273 | goto nla_put_failure; |
| 2274 | |
| 2275 | j = 0; |
| 2276 | for (; i < dpipe_headers->headers_count; i++) { |
| 2277 | err = devlink_dpipe_header_put(skb, dpipe_headers->headers[i]); |
| 2278 | if (err) { |
| 2279 | if (!j) |
| 2280 | goto err_table_put; |
| 2281 | break; |
| 2282 | } |
| 2283 | j++; |
| 2284 | } |
| 2285 | nla_nest_end(skb, headers_attr); |
| 2286 | genlmsg_end(skb, hdr); |
| 2287 | if (i != dpipe_headers->headers_count) |
| 2288 | goto start_again; |
| 2289 | |
| 2290 | send_done: |
| 2291 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, |
| 2292 | NLMSG_DONE, 0, flags | NLM_F_MULTI); |
| 2293 | if (!nlh) { |
| 2294 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); |
| 2295 | if (err) |
Arkadi Sharshevsky | 7fe4d6d | 2018-03-18 17:37:22 +0200 | [diff] [blame] | 2296 | return err; |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 2297 | goto send_done; |
| 2298 | } |
| 2299 | return genlmsg_reply(skb, info); |
| 2300 | |
| 2301 | nla_put_failure: |
| 2302 | err = -EMSGSIZE; |
| 2303 | err_table_put: |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 2304 | nlmsg_free(skb); |
| 2305 | return err; |
| 2306 | } |
| 2307 | |
| 2308 | static int devlink_nl_cmd_dpipe_headers_get(struct sk_buff *skb, |
| 2309 | struct genl_info *info) |
| 2310 | { |
| 2311 | struct devlink *devlink = info->user_ptr[0]; |
| 2312 | |
| 2313 | if (!devlink->dpipe_headers) |
| 2314 | return -EOPNOTSUPP; |
| 2315 | return devlink_dpipe_headers_fill(info, DEVLINK_CMD_DPIPE_HEADERS_GET, |
| 2316 | 0, devlink->dpipe_headers); |
| 2317 | } |
| 2318 | |
| 2319 | static int devlink_dpipe_table_counters_set(struct devlink *devlink, |
| 2320 | const char *table_name, |
| 2321 | bool enable) |
| 2322 | { |
| 2323 | struct devlink_dpipe_table *table; |
| 2324 | |
| 2325 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
| 2326 | table_name); |
| 2327 | if (!table) |
| 2328 | return -EINVAL; |
| 2329 | |
| 2330 | if (table->counter_control_extern) |
| 2331 | return -EOPNOTSUPP; |
| 2332 | |
| 2333 | if (!(table->counters_enabled ^ enable)) |
| 2334 | return 0; |
| 2335 | |
| 2336 | table->counters_enabled = enable; |
| 2337 | if (table->table_ops->counters_set_update) |
| 2338 | table->table_ops->counters_set_update(table->priv, enable); |
| 2339 | return 0; |
| 2340 | } |
| 2341 | |
| 2342 | static int devlink_nl_cmd_dpipe_table_counters_set(struct sk_buff *skb, |
| 2343 | struct genl_info *info) |
| 2344 | { |
| 2345 | struct devlink *devlink = info->user_ptr[0]; |
| 2346 | const char *table_name; |
| 2347 | bool counters_enable; |
| 2348 | |
| 2349 | if (!info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME] || |
| 2350 | !info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]) |
| 2351 | return -EINVAL; |
| 2352 | |
| 2353 | table_name = nla_data(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_NAME]); |
| 2354 | counters_enable = !!nla_get_u8(info->attrs[DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED]); |
| 2355 | |
| 2356 | return devlink_dpipe_table_counters_set(devlink, table_name, |
| 2357 | counters_enable); |
| 2358 | } |
| 2359 | |
Wei Yongjun | 43dd751 | 2018-01-17 03:27:42 +0000 | [diff] [blame] | 2360 | static struct devlink_resource * |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 2361 | devlink_resource_find(struct devlink *devlink, |
| 2362 | struct devlink_resource *resource, u64 resource_id) |
| 2363 | { |
| 2364 | struct list_head *resource_list; |
| 2365 | |
| 2366 | if (resource) |
| 2367 | resource_list = &resource->resource_list; |
| 2368 | else |
| 2369 | resource_list = &devlink->resource_list; |
| 2370 | |
| 2371 | list_for_each_entry(resource, resource_list, list) { |
| 2372 | struct devlink_resource *child_resource; |
| 2373 | |
| 2374 | if (resource->id == resource_id) |
| 2375 | return resource; |
| 2376 | |
| 2377 | child_resource = devlink_resource_find(devlink, resource, |
| 2378 | resource_id); |
| 2379 | if (child_resource) |
| 2380 | return child_resource; |
| 2381 | } |
| 2382 | return NULL; |
| 2383 | } |
| 2384 | |
Wei Yongjun | 43dd751 | 2018-01-17 03:27:42 +0000 | [diff] [blame] | 2385 | static void |
| 2386 | devlink_resource_validate_children(struct devlink_resource *resource) |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 2387 | { |
| 2388 | struct devlink_resource *child_resource; |
| 2389 | bool size_valid = true; |
| 2390 | u64 parts_size = 0; |
| 2391 | |
| 2392 | if (list_empty(&resource->resource_list)) |
| 2393 | goto out; |
| 2394 | |
| 2395 | list_for_each_entry(child_resource, &resource->resource_list, list) |
| 2396 | parts_size += child_resource->size_new; |
| 2397 | |
Arkadi Sharshevsky | b9d1717 | 2018-02-26 10:59:53 +0100 | [diff] [blame] | 2398 | if (parts_size > resource->size_new) |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 2399 | size_valid = false; |
| 2400 | out: |
| 2401 | resource->size_valid = size_valid; |
| 2402 | } |
| 2403 | |
Arkadi Sharshevsky | cc944ea | 2018-02-20 08:44:20 +0100 | [diff] [blame] | 2404 | static int |
| 2405 | devlink_resource_validate_size(struct devlink_resource *resource, u64 size, |
| 2406 | struct netlink_ext_ack *extack) |
| 2407 | { |
| 2408 | u64 reminder; |
| 2409 | int err = 0; |
| 2410 | |
David S. Miller | 0f3e9c9 | 2018-03-06 00:53:44 -0500 | [diff] [blame] | 2411 | if (size > resource->size_params.size_max) { |
Arkadi Sharshevsky | cc944ea | 2018-02-20 08:44:20 +0100 | [diff] [blame] | 2412 | NL_SET_ERR_MSG_MOD(extack, "Size larger than maximum"); |
| 2413 | err = -EINVAL; |
| 2414 | } |
| 2415 | |
David S. Miller | 0f3e9c9 | 2018-03-06 00:53:44 -0500 | [diff] [blame] | 2416 | if (size < resource->size_params.size_min) { |
Arkadi Sharshevsky | cc944ea | 2018-02-20 08:44:20 +0100 | [diff] [blame] | 2417 | NL_SET_ERR_MSG_MOD(extack, "Size smaller than minimum"); |
| 2418 | err = -EINVAL; |
| 2419 | } |
| 2420 | |
David S. Miller | 0f3e9c9 | 2018-03-06 00:53:44 -0500 | [diff] [blame] | 2421 | div64_u64_rem(size, resource->size_params.size_granularity, &reminder); |
Arkadi Sharshevsky | cc944ea | 2018-02-20 08:44:20 +0100 | [diff] [blame] | 2422 | if (reminder) { |
| 2423 | NL_SET_ERR_MSG_MOD(extack, "Wrong granularity"); |
| 2424 | err = -EINVAL; |
| 2425 | } |
| 2426 | |
| 2427 | return err; |
| 2428 | } |
| 2429 | |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 2430 | static int devlink_nl_cmd_resource_set(struct sk_buff *skb, |
| 2431 | struct genl_info *info) |
| 2432 | { |
| 2433 | struct devlink *devlink = info->user_ptr[0]; |
| 2434 | struct devlink_resource *resource; |
| 2435 | u64 resource_id; |
| 2436 | u64 size; |
| 2437 | int err; |
| 2438 | |
| 2439 | if (!info->attrs[DEVLINK_ATTR_RESOURCE_ID] || |
| 2440 | !info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]) |
| 2441 | return -EINVAL; |
| 2442 | resource_id = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_ID]); |
| 2443 | |
| 2444 | resource = devlink_resource_find(devlink, NULL, resource_id); |
| 2445 | if (!resource) |
| 2446 | return -EINVAL; |
| 2447 | |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 2448 | size = nla_get_u64(info->attrs[DEVLINK_ATTR_RESOURCE_SIZE]); |
Arkadi Sharshevsky | cc944ea | 2018-02-20 08:44:20 +0100 | [diff] [blame] | 2449 | err = devlink_resource_validate_size(resource, size, info->extack); |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 2450 | if (err) |
| 2451 | return err; |
| 2452 | |
| 2453 | resource->size_new = size; |
| 2454 | devlink_resource_validate_children(resource); |
| 2455 | if (resource->parent) |
| 2456 | devlink_resource_validate_children(resource->parent); |
| 2457 | return 0; |
| 2458 | } |
| 2459 | |
Arkadi Sharshevsky | 3d18e4f | 2018-02-26 18:25:42 +0200 | [diff] [blame] | 2460 | static int |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 2461 | devlink_resource_size_params_put(struct devlink_resource *resource, |
| 2462 | struct sk_buff *skb) |
| 2463 | { |
| 2464 | struct devlink_resource_size_params *size_params; |
| 2465 | |
Jiri Pirko | 77d2709 | 2018-02-28 13:12:09 +0100 | [diff] [blame] | 2466 | size_params = &resource->size_params; |
Arkadi Sharshevsky | 3d18e4f | 2018-02-26 18:25:42 +0200 | [diff] [blame] | 2467 | if (nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_GRAN, |
| 2468 | size_params->size_granularity, DEVLINK_ATTR_PAD) || |
| 2469 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MAX, |
| 2470 | size_params->size_max, DEVLINK_ATTR_PAD) || |
| 2471 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_MIN, |
| 2472 | size_params->size_min, DEVLINK_ATTR_PAD) || |
| 2473 | nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_UNIT, size_params->unit)) |
| 2474 | return -EMSGSIZE; |
| 2475 | return 0; |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 2476 | } |
| 2477 | |
Jiri Pirko | fc56be4 | 2018-04-05 22:13:21 +0200 | [diff] [blame] | 2478 | static int devlink_resource_occ_put(struct devlink_resource *resource, |
| 2479 | struct sk_buff *skb) |
| 2480 | { |
| 2481 | if (!resource->occ_get) |
| 2482 | return 0; |
| 2483 | return nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_OCC, |
| 2484 | resource->occ_get(resource->occ_get_priv), |
| 2485 | DEVLINK_ATTR_PAD); |
| 2486 | } |
| 2487 | |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 2488 | static int devlink_resource_put(struct devlink *devlink, struct sk_buff *skb, |
| 2489 | struct devlink_resource *resource) |
| 2490 | { |
| 2491 | struct devlink_resource *child_resource; |
| 2492 | struct nlattr *child_resource_attr; |
| 2493 | struct nlattr *resource_attr; |
| 2494 | |
| 2495 | resource_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE); |
| 2496 | if (!resource_attr) |
| 2497 | return -EMSGSIZE; |
| 2498 | |
| 2499 | if (nla_put_string(skb, DEVLINK_ATTR_RESOURCE_NAME, resource->name) || |
| 2500 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE, resource->size, |
| 2501 | DEVLINK_ATTR_PAD) || |
| 2502 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_ID, resource->id, |
| 2503 | DEVLINK_ATTR_PAD)) |
| 2504 | goto nla_put_failure; |
| 2505 | if (resource->size != resource->size_new) |
| 2506 | nla_put_u64_64bit(skb, DEVLINK_ATTR_RESOURCE_SIZE_NEW, |
| 2507 | resource->size_new, DEVLINK_ATTR_PAD); |
Jiri Pirko | fc56be4 | 2018-04-05 22:13:21 +0200 | [diff] [blame] | 2508 | if (devlink_resource_occ_put(resource, skb)) |
| 2509 | goto nla_put_failure; |
Arkadi Sharshevsky | 3d18e4f | 2018-02-26 18:25:42 +0200 | [diff] [blame] | 2510 | if (devlink_resource_size_params_put(resource, skb)) |
| 2511 | goto nla_put_failure; |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 2512 | if (list_empty(&resource->resource_list)) |
| 2513 | goto out; |
| 2514 | |
| 2515 | if (nla_put_u8(skb, DEVLINK_ATTR_RESOURCE_SIZE_VALID, |
| 2516 | resource->size_valid)) |
| 2517 | goto nla_put_failure; |
| 2518 | |
| 2519 | child_resource_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE_LIST); |
| 2520 | if (!child_resource_attr) |
| 2521 | goto nla_put_failure; |
| 2522 | |
| 2523 | list_for_each_entry(child_resource, &resource->resource_list, list) { |
| 2524 | if (devlink_resource_put(devlink, skb, child_resource)) |
| 2525 | goto resource_put_failure; |
| 2526 | } |
| 2527 | |
| 2528 | nla_nest_end(skb, child_resource_attr); |
| 2529 | out: |
| 2530 | nla_nest_end(skb, resource_attr); |
| 2531 | return 0; |
| 2532 | |
| 2533 | resource_put_failure: |
| 2534 | nla_nest_cancel(skb, child_resource_attr); |
| 2535 | nla_put_failure: |
| 2536 | nla_nest_cancel(skb, resource_attr); |
| 2537 | return -EMSGSIZE; |
| 2538 | } |
| 2539 | |
| 2540 | static int devlink_resource_fill(struct genl_info *info, |
| 2541 | enum devlink_command cmd, int flags) |
| 2542 | { |
| 2543 | struct devlink *devlink = info->user_ptr[0]; |
| 2544 | struct devlink_resource *resource; |
| 2545 | struct nlattr *resources_attr; |
| 2546 | struct sk_buff *skb = NULL; |
| 2547 | struct nlmsghdr *nlh; |
| 2548 | bool incomplete; |
| 2549 | void *hdr; |
| 2550 | int i; |
| 2551 | int err; |
| 2552 | |
| 2553 | resource = list_first_entry(&devlink->resource_list, |
| 2554 | struct devlink_resource, list); |
| 2555 | start_again: |
| 2556 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); |
| 2557 | if (err) |
| 2558 | return err; |
| 2559 | |
| 2560 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, |
| 2561 | &devlink_nl_family, NLM_F_MULTI, cmd); |
| 2562 | if (!hdr) { |
| 2563 | nlmsg_free(skb); |
| 2564 | return -EMSGSIZE; |
| 2565 | } |
| 2566 | |
| 2567 | if (devlink_nl_put_handle(skb, devlink)) |
| 2568 | goto nla_put_failure; |
| 2569 | |
| 2570 | resources_attr = nla_nest_start(skb, DEVLINK_ATTR_RESOURCE_LIST); |
| 2571 | if (!resources_attr) |
| 2572 | goto nla_put_failure; |
| 2573 | |
| 2574 | incomplete = false; |
| 2575 | i = 0; |
| 2576 | list_for_each_entry_from(resource, &devlink->resource_list, list) { |
| 2577 | err = devlink_resource_put(devlink, skb, resource); |
| 2578 | if (err) { |
| 2579 | if (!i) |
| 2580 | goto err_resource_put; |
| 2581 | incomplete = true; |
| 2582 | break; |
| 2583 | } |
| 2584 | i++; |
| 2585 | } |
| 2586 | nla_nest_end(skb, resources_attr); |
| 2587 | genlmsg_end(skb, hdr); |
| 2588 | if (incomplete) |
| 2589 | goto start_again; |
| 2590 | send_done: |
| 2591 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, |
| 2592 | NLMSG_DONE, 0, flags | NLM_F_MULTI); |
| 2593 | if (!nlh) { |
| 2594 | err = devlink_dpipe_send_and_alloc_skb(&skb, info); |
| 2595 | if (err) |
Dan Carpenter | 83fe9a9 | 2018-09-21 11:07:55 +0300 | [diff] [blame] | 2596 | return err; |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 2597 | goto send_done; |
| 2598 | } |
| 2599 | return genlmsg_reply(skb, info); |
| 2600 | |
| 2601 | nla_put_failure: |
| 2602 | err = -EMSGSIZE; |
| 2603 | err_resource_put: |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 2604 | nlmsg_free(skb); |
| 2605 | return err; |
| 2606 | } |
| 2607 | |
| 2608 | static int devlink_nl_cmd_resource_dump(struct sk_buff *skb, |
| 2609 | struct genl_info *info) |
| 2610 | { |
| 2611 | struct devlink *devlink = info->user_ptr[0]; |
| 2612 | |
| 2613 | if (list_empty(&devlink->resource_list)) |
| 2614 | return -EOPNOTSUPP; |
| 2615 | |
| 2616 | return devlink_resource_fill(info, DEVLINK_CMD_RESOURCE_DUMP, 0); |
| 2617 | } |
| 2618 | |
Arkadi Sharshevsky | 2d8dc5b | 2018-01-15 08:59:04 +0100 | [diff] [blame] | 2619 | static int |
| 2620 | devlink_resources_validate(struct devlink *devlink, |
| 2621 | struct devlink_resource *resource, |
| 2622 | struct genl_info *info) |
| 2623 | { |
| 2624 | struct list_head *resource_list; |
| 2625 | int err = 0; |
| 2626 | |
| 2627 | if (resource) |
| 2628 | resource_list = &resource->resource_list; |
| 2629 | else |
| 2630 | resource_list = &devlink->resource_list; |
| 2631 | |
| 2632 | list_for_each_entry(resource, resource_list, list) { |
| 2633 | if (!resource->size_valid) |
| 2634 | return -EINVAL; |
| 2635 | err = devlink_resources_validate(devlink, resource, info); |
| 2636 | if (err) |
| 2637 | return err; |
| 2638 | } |
| 2639 | return err; |
| 2640 | } |
| 2641 | |
| 2642 | static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info) |
| 2643 | { |
| 2644 | struct devlink *devlink = info->user_ptr[0]; |
| 2645 | int err; |
| 2646 | |
| 2647 | if (!devlink->ops->reload) |
| 2648 | return -EOPNOTSUPP; |
| 2649 | |
| 2650 | err = devlink_resources_validate(devlink, NULL, info); |
| 2651 | if (err) { |
| 2652 | NL_SET_ERR_MSG_MOD(info->extack, "resources size validation failed"); |
| 2653 | return err; |
| 2654 | } |
David Ahern | ac0fc8a | 2018-06-05 08:14:09 -0700 | [diff] [blame] | 2655 | return devlink->ops->reload(devlink, info->extack); |
Arkadi Sharshevsky | 2d8dc5b | 2018-01-15 08:59:04 +0100 | [diff] [blame] | 2656 | } |
| 2657 | |
Jakub Kicinski | 76726cc | 2019-02-14 13:40:44 -0800 | [diff] [blame] | 2658 | static int devlink_nl_cmd_flash_update(struct sk_buff *skb, |
| 2659 | struct genl_info *info) |
| 2660 | { |
| 2661 | struct devlink *devlink = info->user_ptr[0]; |
| 2662 | const char *file_name, *component; |
| 2663 | struct nlattr *nla_component; |
| 2664 | |
| 2665 | if (!devlink->ops->flash_update) |
| 2666 | return -EOPNOTSUPP; |
| 2667 | |
| 2668 | if (!info->attrs[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME]) |
| 2669 | return -EINVAL; |
| 2670 | file_name = nla_data(info->attrs[DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME]); |
| 2671 | |
| 2672 | nla_component = info->attrs[DEVLINK_ATTR_FLASH_UPDATE_COMPONENT]; |
| 2673 | component = nla_component ? nla_data(nla_component) : NULL; |
| 2674 | |
| 2675 | return devlink->ops->flash_update(devlink, file_name, component, |
| 2676 | info->extack); |
| 2677 | } |
| 2678 | |
Moshe Shemesh | 036467c | 2018-07-04 14:30:33 +0300 | [diff] [blame] | 2679 | static const struct devlink_param devlink_param_generic[] = { |
| 2680 | { |
| 2681 | .id = DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, |
| 2682 | .name = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME, |
| 2683 | .type = DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE, |
| 2684 | }, |
| 2685 | { |
| 2686 | .id = DEVLINK_PARAM_GENERIC_ID_MAX_MACS, |
| 2687 | .name = DEVLINK_PARAM_GENERIC_MAX_MACS_NAME, |
| 2688 | .type = DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE, |
| 2689 | }, |
Vasundhara Volam | f567bcd | 2018-07-04 14:30:36 +0300 | [diff] [blame] | 2690 | { |
| 2691 | .id = DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, |
| 2692 | .name = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME, |
| 2693 | .type = DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE, |
| 2694 | }, |
Alex Vesker | f6a69885 | 2018-07-12 15:13:17 +0300 | [diff] [blame] | 2695 | { |
| 2696 | .id = DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, |
| 2697 | .name = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME, |
| 2698 | .type = DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE, |
| 2699 | }, |
Vasundhara Volam | e3b5106 | 2018-10-04 11:13:44 +0530 | [diff] [blame] | 2700 | { |
| 2701 | .id = DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, |
| 2702 | .name = DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME, |
| 2703 | .type = DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE, |
| 2704 | }, |
Vasundhara Volam | f61cba4 | 2018-10-04 11:13:45 +0530 | [diff] [blame] | 2705 | { |
| 2706 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, |
| 2707 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME, |
| 2708 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE, |
| 2709 | }, |
Vasundhara Volam | 1651178 | 2018-10-04 11:13:46 +0530 | [diff] [blame] | 2710 | { |
| 2711 | .id = DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, |
| 2712 | .name = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME, |
| 2713 | .type = DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE, |
| 2714 | }, |
Shalom Toledo | 846e980 | 2018-12-03 07:58:59 +0000 | [diff] [blame] | 2715 | { |
| 2716 | .id = DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, |
| 2717 | .name = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME, |
| 2718 | .type = DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE, |
| 2719 | }, |
Moshe Shemesh | 036467c | 2018-07-04 14:30:33 +0300 | [diff] [blame] | 2720 | }; |
Moshe Shemesh | eabaef1 | 2018-07-04 14:30:28 +0300 | [diff] [blame] | 2721 | |
| 2722 | static int devlink_param_generic_verify(const struct devlink_param *param) |
| 2723 | { |
| 2724 | /* verify it match generic parameter by id and name */ |
| 2725 | if (param->id > DEVLINK_PARAM_GENERIC_ID_MAX) |
| 2726 | return -EINVAL; |
| 2727 | if (strcmp(param->name, devlink_param_generic[param->id].name)) |
| 2728 | return -ENOENT; |
| 2729 | |
| 2730 | WARN_ON(param->type != devlink_param_generic[param->id].type); |
| 2731 | |
| 2732 | return 0; |
| 2733 | } |
| 2734 | |
| 2735 | static int devlink_param_driver_verify(const struct devlink_param *param) |
| 2736 | { |
| 2737 | int i; |
| 2738 | |
| 2739 | if (param->id <= DEVLINK_PARAM_GENERIC_ID_MAX) |
| 2740 | return -EINVAL; |
| 2741 | /* verify no such name in generic params */ |
| 2742 | for (i = 0; i <= DEVLINK_PARAM_GENERIC_ID_MAX; i++) |
| 2743 | if (!strcmp(param->name, devlink_param_generic[i].name)) |
| 2744 | return -EEXIST; |
| 2745 | |
| 2746 | return 0; |
| 2747 | } |
| 2748 | |
| 2749 | static struct devlink_param_item * |
| 2750 | devlink_param_find_by_name(struct list_head *param_list, |
| 2751 | const char *param_name) |
| 2752 | { |
| 2753 | struct devlink_param_item *param_item; |
| 2754 | |
| 2755 | list_for_each_entry(param_item, param_list, list) |
| 2756 | if (!strcmp(param_item->param->name, param_name)) |
| 2757 | return param_item; |
| 2758 | return NULL; |
| 2759 | } |
| 2760 | |
Moshe Shemesh | ec01aeb | 2018-07-04 14:30:31 +0300 | [diff] [blame] | 2761 | static struct devlink_param_item * |
| 2762 | devlink_param_find_by_id(struct list_head *param_list, u32 param_id) |
| 2763 | { |
| 2764 | struct devlink_param_item *param_item; |
| 2765 | |
| 2766 | list_for_each_entry(param_item, param_list, list) |
| 2767 | if (param_item->param->id == param_id) |
| 2768 | return param_item; |
| 2769 | return NULL; |
| 2770 | } |
| 2771 | |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 2772 | static bool |
| 2773 | devlink_param_cmode_is_supported(const struct devlink_param *param, |
| 2774 | enum devlink_param_cmode cmode) |
| 2775 | { |
| 2776 | return test_bit(cmode, ¶m->supported_cmodes); |
| 2777 | } |
| 2778 | |
| 2779 | static int devlink_param_get(struct devlink *devlink, |
| 2780 | const struct devlink_param *param, |
| 2781 | struct devlink_param_gset_ctx *ctx) |
| 2782 | { |
| 2783 | if (!param->get) |
| 2784 | return -EOPNOTSUPP; |
| 2785 | return param->get(devlink, param->id, ctx); |
| 2786 | } |
| 2787 | |
Moshe Shemesh | e3b7ca1 | 2018-07-04 14:30:30 +0300 | [diff] [blame] | 2788 | static int devlink_param_set(struct devlink *devlink, |
| 2789 | const struct devlink_param *param, |
| 2790 | struct devlink_param_gset_ctx *ctx) |
| 2791 | { |
| 2792 | if (!param->set) |
| 2793 | return -EOPNOTSUPP; |
| 2794 | return param->set(devlink, param->id, ctx); |
| 2795 | } |
| 2796 | |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 2797 | static int |
| 2798 | devlink_param_type_to_nla_type(enum devlink_param_type param_type) |
| 2799 | { |
| 2800 | switch (param_type) { |
| 2801 | case DEVLINK_PARAM_TYPE_U8: |
| 2802 | return NLA_U8; |
| 2803 | case DEVLINK_PARAM_TYPE_U16: |
| 2804 | return NLA_U16; |
| 2805 | case DEVLINK_PARAM_TYPE_U32: |
| 2806 | return NLA_U32; |
| 2807 | case DEVLINK_PARAM_TYPE_STRING: |
| 2808 | return NLA_STRING; |
| 2809 | case DEVLINK_PARAM_TYPE_BOOL: |
| 2810 | return NLA_FLAG; |
| 2811 | default: |
| 2812 | return -EINVAL; |
| 2813 | } |
| 2814 | } |
| 2815 | |
| 2816 | static int |
| 2817 | devlink_nl_param_value_fill_one(struct sk_buff *msg, |
| 2818 | enum devlink_param_type type, |
| 2819 | enum devlink_param_cmode cmode, |
| 2820 | union devlink_param_value val) |
| 2821 | { |
| 2822 | struct nlattr *param_value_attr; |
| 2823 | |
| 2824 | param_value_attr = nla_nest_start(msg, DEVLINK_ATTR_PARAM_VALUE); |
| 2825 | if (!param_value_attr) |
| 2826 | goto nla_put_failure; |
| 2827 | |
| 2828 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_CMODE, cmode)) |
| 2829 | goto value_nest_cancel; |
| 2830 | |
| 2831 | switch (type) { |
| 2832 | case DEVLINK_PARAM_TYPE_U8: |
| 2833 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu8)) |
| 2834 | goto value_nest_cancel; |
| 2835 | break; |
| 2836 | case DEVLINK_PARAM_TYPE_U16: |
| 2837 | if (nla_put_u16(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu16)) |
| 2838 | goto value_nest_cancel; |
| 2839 | break; |
| 2840 | case DEVLINK_PARAM_TYPE_U32: |
| 2841 | if (nla_put_u32(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, val.vu32)) |
| 2842 | goto value_nest_cancel; |
| 2843 | break; |
| 2844 | case DEVLINK_PARAM_TYPE_STRING: |
| 2845 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_VALUE_DATA, |
| 2846 | val.vstr)) |
| 2847 | goto value_nest_cancel; |
| 2848 | break; |
| 2849 | case DEVLINK_PARAM_TYPE_BOOL: |
| 2850 | if (val.vbool && |
| 2851 | nla_put_flag(msg, DEVLINK_ATTR_PARAM_VALUE_DATA)) |
| 2852 | goto value_nest_cancel; |
| 2853 | break; |
| 2854 | } |
| 2855 | |
| 2856 | nla_nest_end(msg, param_value_attr); |
| 2857 | return 0; |
| 2858 | |
| 2859 | value_nest_cancel: |
| 2860 | nla_nest_cancel(msg, param_value_attr); |
| 2861 | nla_put_failure: |
| 2862 | return -EMSGSIZE; |
| 2863 | } |
| 2864 | |
| 2865 | static int devlink_nl_param_fill(struct sk_buff *msg, struct devlink *devlink, |
Vasundhara Volam | f4601de | 2019-01-28 18:00:21 +0530 | [diff] [blame] | 2866 | unsigned int port_index, |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 2867 | struct devlink_param_item *param_item, |
| 2868 | enum devlink_command cmd, |
| 2869 | u32 portid, u32 seq, int flags) |
| 2870 | { |
| 2871 | union devlink_param_value param_value[DEVLINK_PARAM_CMODE_MAX + 1]; |
Jiri Pirko | 7c62cfb | 2019-02-07 11:22:45 +0000 | [diff] [blame] | 2872 | bool param_value_set[DEVLINK_PARAM_CMODE_MAX + 1] = {}; |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 2873 | const struct devlink_param *param = param_item->param; |
| 2874 | struct devlink_param_gset_ctx ctx; |
| 2875 | struct nlattr *param_values_list; |
| 2876 | struct nlattr *param_attr; |
| 2877 | int nla_type; |
| 2878 | void *hdr; |
| 2879 | int err; |
| 2880 | int i; |
| 2881 | |
| 2882 | /* Get value from driver part to driverinit configuration mode */ |
| 2883 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { |
| 2884 | if (!devlink_param_cmode_is_supported(param, i)) |
| 2885 | continue; |
| 2886 | if (i == DEVLINK_PARAM_CMODE_DRIVERINIT) { |
| 2887 | if (!param_item->driverinit_value_valid) |
| 2888 | return -EOPNOTSUPP; |
| 2889 | param_value[i] = param_item->driverinit_value; |
| 2890 | } else { |
Jiri Pirko | 7c62cfb | 2019-02-07 11:22:45 +0000 | [diff] [blame] | 2891 | if (!param_item->published) |
| 2892 | continue; |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 2893 | ctx.cmode = i; |
| 2894 | err = devlink_param_get(devlink, param, &ctx); |
| 2895 | if (err) |
| 2896 | return err; |
| 2897 | param_value[i] = ctx.val; |
| 2898 | } |
Jiri Pirko | 7c62cfb | 2019-02-07 11:22:45 +0000 | [diff] [blame] | 2899 | param_value_set[i] = true; |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 2900 | } |
| 2901 | |
| 2902 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); |
| 2903 | if (!hdr) |
| 2904 | return -EMSGSIZE; |
| 2905 | |
| 2906 | if (devlink_nl_put_handle(msg, devlink)) |
| 2907 | goto genlmsg_cancel; |
Vasundhara Volam | f4601de | 2019-01-28 18:00:21 +0530 | [diff] [blame] | 2908 | |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 2909 | if (cmd == DEVLINK_CMD_PORT_PARAM_GET || |
| 2910 | cmd == DEVLINK_CMD_PORT_PARAM_NEW || |
| 2911 | cmd == DEVLINK_CMD_PORT_PARAM_DEL) |
Vasundhara Volam | f4601de | 2019-01-28 18:00:21 +0530 | [diff] [blame] | 2912 | if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX, port_index)) |
| 2913 | goto genlmsg_cancel; |
| 2914 | |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 2915 | param_attr = nla_nest_start(msg, DEVLINK_ATTR_PARAM); |
| 2916 | if (!param_attr) |
| 2917 | goto genlmsg_cancel; |
| 2918 | if (nla_put_string(msg, DEVLINK_ATTR_PARAM_NAME, param->name)) |
| 2919 | goto param_nest_cancel; |
| 2920 | if (param->generic && nla_put_flag(msg, DEVLINK_ATTR_PARAM_GENERIC)) |
| 2921 | goto param_nest_cancel; |
| 2922 | |
| 2923 | nla_type = devlink_param_type_to_nla_type(param->type); |
| 2924 | if (nla_type < 0) |
| 2925 | goto param_nest_cancel; |
| 2926 | if (nla_put_u8(msg, DEVLINK_ATTR_PARAM_TYPE, nla_type)) |
| 2927 | goto param_nest_cancel; |
| 2928 | |
| 2929 | param_values_list = nla_nest_start(msg, DEVLINK_ATTR_PARAM_VALUES_LIST); |
| 2930 | if (!param_values_list) |
| 2931 | goto param_nest_cancel; |
| 2932 | |
| 2933 | for (i = 0; i <= DEVLINK_PARAM_CMODE_MAX; i++) { |
Jiri Pirko | 7c62cfb | 2019-02-07 11:22:45 +0000 | [diff] [blame] | 2934 | if (!param_value_set[i]) |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 2935 | continue; |
| 2936 | err = devlink_nl_param_value_fill_one(msg, param->type, |
| 2937 | i, param_value[i]); |
| 2938 | if (err) |
| 2939 | goto values_list_nest_cancel; |
| 2940 | } |
| 2941 | |
| 2942 | nla_nest_end(msg, param_values_list); |
| 2943 | nla_nest_end(msg, param_attr); |
| 2944 | genlmsg_end(msg, hdr); |
| 2945 | return 0; |
| 2946 | |
| 2947 | values_list_nest_cancel: |
| 2948 | nla_nest_end(msg, param_values_list); |
| 2949 | param_nest_cancel: |
| 2950 | nla_nest_cancel(msg, param_attr); |
| 2951 | genlmsg_cancel: |
| 2952 | genlmsg_cancel(msg, hdr); |
| 2953 | return -EMSGSIZE; |
| 2954 | } |
| 2955 | |
Moshe Shemesh | ea601e1 | 2018-07-04 14:30:32 +0300 | [diff] [blame] | 2956 | static void devlink_param_notify(struct devlink *devlink, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 2957 | unsigned int port_index, |
Moshe Shemesh | ea601e1 | 2018-07-04 14:30:32 +0300 | [diff] [blame] | 2958 | struct devlink_param_item *param_item, |
| 2959 | enum devlink_command cmd) |
| 2960 | { |
| 2961 | struct sk_buff *msg; |
| 2962 | int err; |
| 2963 | |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 2964 | WARN_ON(cmd != DEVLINK_CMD_PARAM_NEW && cmd != DEVLINK_CMD_PARAM_DEL && |
| 2965 | cmd != DEVLINK_CMD_PORT_PARAM_NEW && |
| 2966 | cmd != DEVLINK_CMD_PORT_PARAM_DEL); |
Moshe Shemesh | ea601e1 | 2018-07-04 14:30:32 +0300 | [diff] [blame] | 2967 | |
| 2968 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 2969 | if (!msg) |
| 2970 | return; |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 2971 | err = devlink_nl_param_fill(msg, devlink, port_index, param_item, cmd, |
| 2972 | 0, 0, 0); |
Moshe Shemesh | ea601e1 | 2018-07-04 14:30:32 +0300 | [diff] [blame] | 2973 | if (err) { |
| 2974 | nlmsg_free(msg); |
| 2975 | return; |
| 2976 | } |
| 2977 | |
| 2978 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), |
| 2979 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); |
| 2980 | } |
| 2981 | |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 2982 | static int devlink_nl_cmd_param_get_dumpit(struct sk_buff *msg, |
| 2983 | struct netlink_callback *cb) |
| 2984 | { |
| 2985 | struct devlink_param_item *param_item; |
| 2986 | struct devlink *devlink; |
| 2987 | int start = cb->args[0]; |
| 2988 | int idx = 0; |
| 2989 | int err; |
| 2990 | |
| 2991 | mutex_lock(&devlink_mutex); |
| 2992 | list_for_each_entry(devlink, &devlink_list, list) { |
| 2993 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) |
| 2994 | continue; |
| 2995 | mutex_lock(&devlink->lock); |
| 2996 | list_for_each_entry(param_item, &devlink->param_list, list) { |
| 2997 | if (idx < start) { |
| 2998 | idx++; |
| 2999 | continue; |
| 3000 | } |
Vasundhara Volam | f4601de | 2019-01-28 18:00:21 +0530 | [diff] [blame] | 3001 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 3002 | DEVLINK_CMD_PARAM_GET, |
| 3003 | NETLINK_CB(cb->skb).portid, |
| 3004 | cb->nlh->nlmsg_seq, |
| 3005 | NLM_F_MULTI); |
| 3006 | if (err) { |
| 3007 | mutex_unlock(&devlink->lock); |
| 3008 | goto out; |
| 3009 | } |
| 3010 | idx++; |
| 3011 | } |
| 3012 | mutex_unlock(&devlink->lock); |
| 3013 | } |
| 3014 | out: |
| 3015 | mutex_unlock(&devlink_mutex); |
| 3016 | |
| 3017 | cb->args[0] = idx; |
| 3018 | return msg->len; |
| 3019 | } |
| 3020 | |
Moshe Shemesh | e3b7ca1 | 2018-07-04 14:30:30 +0300 | [diff] [blame] | 3021 | static int |
| 3022 | devlink_param_type_get_from_info(struct genl_info *info, |
| 3023 | enum devlink_param_type *param_type) |
| 3024 | { |
| 3025 | if (!info->attrs[DEVLINK_ATTR_PARAM_TYPE]) |
| 3026 | return -EINVAL; |
| 3027 | |
| 3028 | switch (nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_TYPE])) { |
| 3029 | case NLA_U8: |
| 3030 | *param_type = DEVLINK_PARAM_TYPE_U8; |
| 3031 | break; |
| 3032 | case NLA_U16: |
| 3033 | *param_type = DEVLINK_PARAM_TYPE_U16; |
| 3034 | break; |
| 3035 | case NLA_U32: |
| 3036 | *param_type = DEVLINK_PARAM_TYPE_U32; |
| 3037 | break; |
| 3038 | case NLA_STRING: |
| 3039 | *param_type = DEVLINK_PARAM_TYPE_STRING; |
| 3040 | break; |
| 3041 | case NLA_FLAG: |
| 3042 | *param_type = DEVLINK_PARAM_TYPE_BOOL; |
| 3043 | break; |
| 3044 | default: |
| 3045 | return -EINVAL; |
| 3046 | } |
| 3047 | |
| 3048 | return 0; |
| 3049 | } |
| 3050 | |
| 3051 | static int |
| 3052 | devlink_param_value_get_from_info(const struct devlink_param *param, |
| 3053 | struct genl_info *info, |
| 3054 | union devlink_param_value *value) |
| 3055 | { |
Moshe Shemesh | f355cfc | 2018-10-10 16:09:25 +0300 | [diff] [blame] | 3056 | int len; |
| 3057 | |
Moshe Shemesh | e3b7ca1 | 2018-07-04 14:30:30 +0300 | [diff] [blame] | 3058 | if (param->type != DEVLINK_PARAM_TYPE_BOOL && |
| 3059 | !info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]) |
| 3060 | return -EINVAL; |
| 3061 | |
| 3062 | switch (param->type) { |
| 3063 | case DEVLINK_PARAM_TYPE_U8: |
| 3064 | value->vu8 = nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]); |
| 3065 | break; |
| 3066 | case DEVLINK_PARAM_TYPE_U16: |
| 3067 | value->vu16 = nla_get_u16(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]); |
| 3068 | break; |
| 3069 | case DEVLINK_PARAM_TYPE_U32: |
| 3070 | value->vu32 = nla_get_u32(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]); |
| 3071 | break; |
| 3072 | case DEVLINK_PARAM_TYPE_STRING: |
Moshe Shemesh | f355cfc | 2018-10-10 16:09:25 +0300 | [diff] [blame] | 3073 | len = strnlen(nla_data(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]), |
| 3074 | nla_len(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA])); |
| 3075 | if (len == nla_len(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA]) || |
Moshe Shemesh | bde74ad1 | 2018-10-10 16:09:27 +0300 | [diff] [blame] | 3076 | len >= __DEVLINK_PARAM_MAX_STRING_VALUE) |
Moshe Shemesh | e3b7ca1 | 2018-07-04 14:30:30 +0300 | [diff] [blame] | 3077 | return -EINVAL; |
Moshe Shemesh | f355cfc | 2018-10-10 16:09:25 +0300 | [diff] [blame] | 3078 | strcpy(value->vstr, |
| 3079 | nla_data(info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA])); |
Moshe Shemesh | e3b7ca1 | 2018-07-04 14:30:30 +0300 | [diff] [blame] | 3080 | break; |
| 3081 | case DEVLINK_PARAM_TYPE_BOOL: |
| 3082 | value->vbool = info->attrs[DEVLINK_ATTR_PARAM_VALUE_DATA] ? |
| 3083 | true : false; |
| 3084 | break; |
| 3085 | } |
| 3086 | return 0; |
| 3087 | } |
| 3088 | |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 3089 | static struct devlink_param_item * |
Vasundhara Volam | f4601de | 2019-01-28 18:00:21 +0530 | [diff] [blame] | 3090 | devlink_param_get_from_info(struct list_head *param_list, |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 3091 | struct genl_info *info) |
| 3092 | { |
| 3093 | char *param_name; |
| 3094 | |
| 3095 | if (!info->attrs[DEVLINK_ATTR_PARAM_NAME]) |
| 3096 | return NULL; |
| 3097 | |
| 3098 | param_name = nla_data(info->attrs[DEVLINK_ATTR_PARAM_NAME]); |
Vasundhara Volam | f4601de | 2019-01-28 18:00:21 +0530 | [diff] [blame] | 3099 | return devlink_param_find_by_name(param_list, param_name); |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 3100 | } |
| 3101 | |
| 3102 | static int devlink_nl_cmd_param_get_doit(struct sk_buff *skb, |
| 3103 | struct genl_info *info) |
| 3104 | { |
| 3105 | struct devlink *devlink = info->user_ptr[0]; |
| 3106 | struct devlink_param_item *param_item; |
| 3107 | struct sk_buff *msg; |
| 3108 | int err; |
| 3109 | |
Vasundhara Volam | f4601de | 2019-01-28 18:00:21 +0530 | [diff] [blame] | 3110 | param_item = devlink_param_get_from_info(&devlink->param_list, info); |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 3111 | if (!param_item) |
| 3112 | return -EINVAL; |
| 3113 | |
| 3114 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 3115 | if (!msg) |
| 3116 | return -ENOMEM; |
| 3117 | |
Vasundhara Volam | f4601de | 2019-01-28 18:00:21 +0530 | [diff] [blame] | 3118 | err = devlink_nl_param_fill(msg, devlink, 0, param_item, |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 3119 | DEVLINK_CMD_PARAM_GET, |
| 3120 | info->snd_portid, info->snd_seq, 0); |
| 3121 | if (err) { |
| 3122 | nlmsg_free(msg); |
| 3123 | return err; |
| 3124 | } |
| 3125 | |
| 3126 | return genlmsg_reply(msg, info); |
| 3127 | } |
| 3128 | |
Vasundhara Volam | 9c54873 | 2019-01-28 18:00:22 +0530 | [diff] [blame] | 3129 | static int __devlink_nl_cmd_param_set_doit(struct devlink *devlink, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 3130 | unsigned int port_index, |
Vasundhara Volam | 9c54873 | 2019-01-28 18:00:22 +0530 | [diff] [blame] | 3131 | struct list_head *param_list, |
| 3132 | struct genl_info *info, |
| 3133 | enum devlink_command cmd) |
Moshe Shemesh | e3b7ca1 | 2018-07-04 14:30:30 +0300 | [diff] [blame] | 3134 | { |
Moshe Shemesh | e3b7ca1 | 2018-07-04 14:30:30 +0300 | [diff] [blame] | 3135 | enum devlink_param_type param_type; |
| 3136 | struct devlink_param_gset_ctx ctx; |
| 3137 | enum devlink_param_cmode cmode; |
| 3138 | struct devlink_param_item *param_item; |
| 3139 | const struct devlink_param *param; |
| 3140 | union devlink_param_value value; |
| 3141 | int err = 0; |
| 3142 | |
Vasundhara Volam | 9c54873 | 2019-01-28 18:00:22 +0530 | [diff] [blame] | 3143 | param_item = devlink_param_get_from_info(param_list, info); |
Moshe Shemesh | e3b7ca1 | 2018-07-04 14:30:30 +0300 | [diff] [blame] | 3144 | if (!param_item) |
| 3145 | return -EINVAL; |
| 3146 | param = param_item->param; |
| 3147 | err = devlink_param_type_get_from_info(info, ¶m_type); |
| 3148 | if (err) |
| 3149 | return err; |
| 3150 | if (param_type != param->type) |
| 3151 | return -EINVAL; |
| 3152 | err = devlink_param_value_get_from_info(param, info, &value); |
| 3153 | if (err) |
| 3154 | return err; |
| 3155 | if (param->validate) { |
| 3156 | err = param->validate(devlink, param->id, value, info->extack); |
| 3157 | if (err) |
| 3158 | return err; |
| 3159 | } |
| 3160 | |
| 3161 | if (!info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]) |
| 3162 | return -EINVAL; |
| 3163 | cmode = nla_get_u8(info->attrs[DEVLINK_ATTR_PARAM_VALUE_CMODE]); |
| 3164 | if (!devlink_param_cmode_is_supported(param, cmode)) |
| 3165 | return -EOPNOTSUPP; |
| 3166 | |
| 3167 | if (cmode == DEVLINK_PARAM_CMODE_DRIVERINIT) { |
Moshe Shemesh | 1276534 | 2018-10-10 16:09:26 +0300 | [diff] [blame] | 3168 | if (param->type == DEVLINK_PARAM_TYPE_STRING) |
| 3169 | strcpy(param_item->driverinit_value.vstr, value.vstr); |
| 3170 | else |
| 3171 | param_item->driverinit_value = value; |
Moshe Shemesh | e3b7ca1 | 2018-07-04 14:30:30 +0300 | [diff] [blame] | 3172 | param_item->driverinit_value_valid = true; |
| 3173 | } else { |
| 3174 | if (!param->set) |
| 3175 | return -EOPNOTSUPP; |
| 3176 | ctx.val = value; |
| 3177 | ctx.cmode = cmode; |
| 3178 | err = devlink_param_set(devlink, param, &ctx); |
| 3179 | if (err) |
| 3180 | return err; |
| 3181 | } |
| 3182 | |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 3183 | devlink_param_notify(devlink, port_index, param_item, cmd); |
Moshe Shemesh | e3b7ca1 | 2018-07-04 14:30:30 +0300 | [diff] [blame] | 3184 | return 0; |
| 3185 | } |
| 3186 | |
Vasundhara Volam | 9c54873 | 2019-01-28 18:00:22 +0530 | [diff] [blame] | 3187 | static int devlink_nl_cmd_param_set_doit(struct sk_buff *skb, |
| 3188 | struct genl_info *info) |
| 3189 | { |
| 3190 | struct devlink *devlink = info->user_ptr[0]; |
| 3191 | |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 3192 | return __devlink_nl_cmd_param_set_doit(devlink, 0, &devlink->param_list, |
Vasundhara Volam | 9c54873 | 2019-01-28 18:00:22 +0530 | [diff] [blame] | 3193 | info, DEVLINK_CMD_PARAM_NEW); |
| 3194 | } |
| 3195 | |
Moshe Shemesh | eabaef1 | 2018-07-04 14:30:28 +0300 | [diff] [blame] | 3196 | static int devlink_param_register_one(struct devlink *devlink, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 3197 | unsigned int port_index, |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 3198 | struct list_head *param_list, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 3199 | const struct devlink_param *param, |
| 3200 | enum devlink_command cmd) |
Moshe Shemesh | eabaef1 | 2018-07-04 14:30:28 +0300 | [diff] [blame] | 3201 | { |
| 3202 | struct devlink_param_item *param_item; |
| 3203 | |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 3204 | if (devlink_param_find_by_name(param_list, param->name)) |
Moshe Shemesh | eabaef1 | 2018-07-04 14:30:28 +0300 | [diff] [blame] | 3205 | return -EEXIST; |
| 3206 | |
| 3207 | if (param->supported_cmodes == BIT(DEVLINK_PARAM_CMODE_DRIVERINIT)) |
| 3208 | WARN_ON(param->get || param->set); |
| 3209 | else |
| 3210 | WARN_ON(!param->get || !param->set); |
| 3211 | |
| 3212 | param_item = kzalloc(sizeof(*param_item), GFP_KERNEL); |
| 3213 | if (!param_item) |
| 3214 | return -ENOMEM; |
| 3215 | param_item->param = param; |
| 3216 | |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 3217 | list_add_tail(¶m_item->list, param_list); |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 3218 | devlink_param_notify(devlink, port_index, param_item, cmd); |
Moshe Shemesh | eabaef1 | 2018-07-04 14:30:28 +0300 | [diff] [blame] | 3219 | return 0; |
| 3220 | } |
| 3221 | |
| 3222 | static void devlink_param_unregister_one(struct devlink *devlink, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 3223 | unsigned int port_index, |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 3224 | struct list_head *param_list, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 3225 | const struct devlink_param *param, |
| 3226 | enum devlink_command cmd) |
Moshe Shemesh | eabaef1 | 2018-07-04 14:30:28 +0300 | [diff] [blame] | 3227 | { |
| 3228 | struct devlink_param_item *param_item; |
| 3229 | |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 3230 | param_item = devlink_param_find_by_name(param_list, param->name); |
Moshe Shemesh | eabaef1 | 2018-07-04 14:30:28 +0300 | [diff] [blame] | 3231 | WARN_ON(!param_item); |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 3232 | devlink_param_notify(devlink, port_index, param_item, cmd); |
Moshe Shemesh | eabaef1 | 2018-07-04 14:30:28 +0300 | [diff] [blame] | 3233 | list_del(¶m_item->list); |
| 3234 | kfree(param_item); |
| 3235 | } |
| 3236 | |
Vasundhara Volam | f4601de | 2019-01-28 18:00:21 +0530 | [diff] [blame] | 3237 | static int devlink_nl_cmd_port_param_get_dumpit(struct sk_buff *msg, |
| 3238 | struct netlink_callback *cb) |
| 3239 | { |
| 3240 | struct devlink_param_item *param_item; |
| 3241 | struct devlink_port *devlink_port; |
| 3242 | struct devlink *devlink; |
| 3243 | int start = cb->args[0]; |
| 3244 | int idx = 0; |
| 3245 | int err; |
| 3246 | |
| 3247 | mutex_lock(&devlink_mutex); |
| 3248 | list_for_each_entry(devlink, &devlink_list, list) { |
| 3249 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) |
| 3250 | continue; |
| 3251 | mutex_lock(&devlink->lock); |
| 3252 | list_for_each_entry(devlink_port, &devlink->port_list, list) { |
| 3253 | list_for_each_entry(param_item, |
| 3254 | &devlink_port->param_list, list) { |
| 3255 | if (idx < start) { |
| 3256 | idx++; |
| 3257 | continue; |
| 3258 | } |
| 3259 | err = devlink_nl_param_fill(msg, |
| 3260 | devlink_port->devlink, |
| 3261 | devlink_port->index, param_item, |
| 3262 | DEVLINK_CMD_PORT_PARAM_GET, |
| 3263 | NETLINK_CB(cb->skb).portid, |
| 3264 | cb->nlh->nlmsg_seq, |
| 3265 | NLM_F_MULTI); |
| 3266 | if (err) { |
| 3267 | mutex_unlock(&devlink->lock); |
| 3268 | goto out; |
| 3269 | } |
| 3270 | idx++; |
| 3271 | } |
| 3272 | } |
| 3273 | mutex_unlock(&devlink->lock); |
| 3274 | } |
| 3275 | out: |
| 3276 | mutex_unlock(&devlink_mutex); |
| 3277 | |
| 3278 | cb->args[0] = idx; |
| 3279 | return msg->len; |
| 3280 | } |
| 3281 | |
| 3282 | static int devlink_nl_cmd_port_param_get_doit(struct sk_buff *skb, |
| 3283 | struct genl_info *info) |
| 3284 | { |
| 3285 | struct devlink_port *devlink_port = info->user_ptr[0]; |
| 3286 | struct devlink_param_item *param_item; |
| 3287 | struct sk_buff *msg; |
| 3288 | int err; |
| 3289 | |
| 3290 | param_item = devlink_param_get_from_info(&devlink_port->param_list, |
| 3291 | info); |
| 3292 | if (!param_item) |
| 3293 | return -EINVAL; |
| 3294 | |
| 3295 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 3296 | if (!msg) |
| 3297 | return -ENOMEM; |
| 3298 | |
| 3299 | err = devlink_nl_param_fill(msg, devlink_port->devlink, |
| 3300 | devlink_port->index, param_item, |
| 3301 | DEVLINK_CMD_PORT_PARAM_GET, |
| 3302 | info->snd_portid, info->snd_seq, 0); |
| 3303 | if (err) { |
| 3304 | nlmsg_free(msg); |
| 3305 | return err; |
| 3306 | } |
| 3307 | |
| 3308 | return genlmsg_reply(msg, info); |
| 3309 | } |
| 3310 | |
Vasundhara Volam | 9c54873 | 2019-01-28 18:00:22 +0530 | [diff] [blame] | 3311 | static int devlink_nl_cmd_port_param_set_doit(struct sk_buff *skb, |
| 3312 | struct genl_info *info) |
| 3313 | { |
| 3314 | struct devlink_port *devlink_port = info->user_ptr[0]; |
| 3315 | |
| 3316 | return __devlink_nl_cmd_param_set_doit(devlink_port->devlink, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 3317 | devlink_port->index, |
| 3318 | &devlink_port->param_list, info, |
| 3319 | DEVLINK_CMD_PORT_PARAM_NEW); |
Vasundhara Volam | 9c54873 | 2019-01-28 18:00:22 +0530 | [diff] [blame] | 3320 | } |
| 3321 | |
Alex Vesker | a006d46 | 2018-07-12 15:13:12 +0300 | [diff] [blame] | 3322 | static int devlink_nl_region_snapshot_id_put(struct sk_buff *msg, |
| 3323 | struct devlink *devlink, |
| 3324 | struct devlink_snapshot *snapshot) |
| 3325 | { |
| 3326 | struct nlattr *snap_attr; |
| 3327 | int err; |
| 3328 | |
| 3329 | snap_attr = nla_nest_start(msg, DEVLINK_ATTR_REGION_SNAPSHOT); |
| 3330 | if (!snap_attr) |
| 3331 | return -EINVAL; |
| 3332 | |
| 3333 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, snapshot->id); |
| 3334 | if (err) |
| 3335 | goto nla_put_failure; |
| 3336 | |
| 3337 | nla_nest_end(msg, snap_attr); |
| 3338 | return 0; |
| 3339 | |
| 3340 | nla_put_failure: |
| 3341 | nla_nest_cancel(msg, snap_attr); |
| 3342 | return err; |
| 3343 | } |
| 3344 | |
| 3345 | static int devlink_nl_region_snapshots_id_put(struct sk_buff *msg, |
| 3346 | struct devlink *devlink, |
| 3347 | struct devlink_region *region) |
| 3348 | { |
| 3349 | struct devlink_snapshot *snapshot; |
| 3350 | struct nlattr *snapshots_attr; |
| 3351 | int err; |
| 3352 | |
| 3353 | snapshots_attr = nla_nest_start(msg, DEVLINK_ATTR_REGION_SNAPSHOTS); |
| 3354 | if (!snapshots_attr) |
| 3355 | return -EINVAL; |
| 3356 | |
| 3357 | list_for_each_entry(snapshot, ®ion->snapshot_list, list) { |
| 3358 | err = devlink_nl_region_snapshot_id_put(msg, devlink, snapshot); |
| 3359 | if (err) |
| 3360 | goto nla_put_failure; |
| 3361 | } |
| 3362 | |
| 3363 | nla_nest_end(msg, snapshots_attr); |
| 3364 | return 0; |
| 3365 | |
| 3366 | nla_put_failure: |
| 3367 | nla_nest_cancel(msg, snapshots_attr); |
| 3368 | return err; |
| 3369 | } |
| 3370 | |
Alex Vesker | d8db7ea5 | 2018-07-12 15:13:11 +0300 | [diff] [blame] | 3371 | static int devlink_nl_region_fill(struct sk_buff *msg, struct devlink *devlink, |
| 3372 | enum devlink_command cmd, u32 portid, |
| 3373 | u32 seq, int flags, |
| 3374 | struct devlink_region *region) |
| 3375 | { |
| 3376 | void *hdr; |
| 3377 | int err; |
| 3378 | |
| 3379 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); |
| 3380 | if (!hdr) |
| 3381 | return -EMSGSIZE; |
| 3382 | |
| 3383 | err = devlink_nl_put_handle(msg, devlink); |
| 3384 | if (err) |
| 3385 | goto nla_put_failure; |
| 3386 | |
| 3387 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, region->name); |
| 3388 | if (err) |
| 3389 | goto nla_put_failure; |
| 3390 | |
| 3391 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, |
| 3392 | region->size, |
| 3393 | DEVLINK_ATTR_PAD); |
| 3394 | if (err) |
| 3395 | goto nla_put_failure; |
| 3396 | |
Alex Vesker | a006d46 | 2018-07-12 15:13:12 +0300 | [diff] [blame] | 3397 | err = devlink_nl_region_snapshots_id_put(msg, devlink, region); |
| 3398 | if (err) |
| 3399 | goto nla_put_failure; |
| 3400 | |
Alex Vesker | d8db7ea5 | 2018-07-12 15:13:11 +0300 | [diff] [blame] | 3401 | genlmsg_end(msg, hdr); |
| 3402 | return 0; |
| 3403 | |
| 3404 | nla_put_failure: |
| 3405 | genlmsg_cancel(msg, hdr); |
| 3406 | return err; |
| 3407 | } |
| 3408 | |
Alex Vesker | 866319b | 2018-07-12 15:13:13 +0300 | [diff] [blame] | 3409 | static void devlink_nl_region_notify(struct devlink_region *region, |
| 3410 | struct devlink_snapshot *snapshot, |
| 3411 | enum devlink_command cmd) |
| 3412 | { |
| 3413 | struct devlink *devlink = region->devlink; |
| 3414 | struct sk_buff *msg; |
| 3415 | void *hdr; |
| 3416 | int err; |
| 3417 | |
| 3418 | WARN_ON(cmd != DEVLINK_CMD_REGION_NEW && cmd != DEVLINK_CMD_REGION_DEL); |
| 3419 | |
| 3420 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 3421 | if (!msg) |
| 3422 | return; |
| 3423 | |
| 3424 | hdr = genlmsg_put(msg, 0, 0, &devlink_nl_family, 0, cmd); |
| 3425 | if (!hdr) |
| 3426 | goto out_free_msg; |
| 3427 | |
| 3428 | err = devlink_nl_put_handle(msg, devlink); |
| 3429 | if (err) |
| 3430 | goto out_cancel_msg; |
| 3431 | |
| 3432 | err = nla_put_string(msg, DEVLINK_ATTR_REGION_NAME, |
| 3433 | region->name); |
| 3434 | if (err) |
| 3435 | goto out_cancel_msg; |
| 3436 | |
| 3437 | if (snapshot) { |
| 3438 | err = nla_put_u32(msg, DEVLINK_ATTR_REGION_SNAPSHOT_ID, |
| 3439 | snapshot->id); |
| 3440 | if (err) |
| 3441 | goto out_cancel_msg; |
| 3442 | } else { |
| 3443 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_SIZE, |
| 3444 | region->size, DEVLINK_ATTR_PAD); |
| 3445 | if (err) |
| 3446 | goto out_cancel_msg; |
| 3447 | } |
| 3448 | genlmsg_end(msg, hdr); |
| 3449 | |
| 3450 | genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), |
| 3451 | msg, 0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL); |
| 3452 | |
| 3453 | return; |
| 3454 | |
| 3455 | out_cancel_msg: |
| 3456 | genlmsg_cancel(msg, hdr); |
| 3457 | out_free_msg: |
| 3458 | nlmsg_free(msg); |
| 3459 | } |
| 3460 | |
Alex Vesker | d8db7ea5 | 2018-07-12 15:13:11 +0300 | [diff] [blame] | 3461 | static int devlink_nl_cmd_region_get_doit(struct sk_buff *skb, |
| 3462 | struct genl_info *info) |
| 3463 | { |
| 3464 | struct devlink *devlink = info->user_ptr[0]; |
| 3465 | struct devlink_region *region; |
| 3466 | const char *region_name; |
| 3467 | struct sk_buff *msg; |
| 3468 | int err; |
| 3469 | |
| 3470 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME]) |
| 3471 | return -EINVAL; |
| 3472 | |
| 3473 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
| 3474 | region = devlink_region_get_by_name(devlink, region_name); |
| 3475 | if (!region) |
| 3476 | return -EINVAL; |
| 3477 | |
| 3478 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 3479 | if (!msg) |
| 3480 | return -ENOMEM; |
| 3481 | |
| 3482 | err = devlink_nl_region_fill(msg, devlink, DEVLINK_CMD_REGION_GET, |
| 3483 | info->snd_portid, info->snd_seq, 0, |
| 3484 | region); |
| 3485 | if (err) { |
| 3486 | nlmsg_free(msg); |
| 3487 | return err; |
| 3488 | } |
| 3489 | |
| 3490 | return genlmsg_reply(msg, info); |
| 3491 | } |
| 3492 | |
| 3493 | static int devlink_nl_cmd_region_get_dumpit(struct sk_buff *msg, |
| 3494 | struct netlink_callback *cb) |
| 3495 | { |
| 3496 | struct devlink_region *region; |
| 3497 | struct devlink *devlink; |
| 3498 | int start = cb->args[0]; |
| 3499 | int idx = 0; |
| 3500 | int err; |
| 3501 | |
| 3502 | mutex_lock(&devlink_mutex); |
| 3503 | list_for_each_entry(devlink, &devlink_list, list) { |
| 3504 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) |
| 3505 | continue; |
| 3506 | |
| 3507 | mutex_lock(&devlink->lock); |
| 3508 | list_for_each_entry(region, &devlink->region_list, list) { |
| 3509 | if (idx < start) { |
| 3510 | idx++; |
| 3511 | continue; |
| 3512 | } |
| 3513 | err = devlink_nl_region_fill(msg, devlink, |
| 3514 | DEVLINK_CMD_REGION_GET, |
| 3515 | NETLINK_CB(cb->skb).portid, |
| 3516 | cb->nlh->nlmsg_seq, |
| 3517 | NLM_F_MULTI, region); |
| 3518 | if (err) { |
| 3519 | mutex_unlock(&devlink->lock); |
| 3520 | goto out; |
| 3521 | } |
| 3522 | idx++; |
| 3523 | } |
| 3524 | mutex_unlock(&devlink->lock); |
| 3525 | } |
| 3526 | out: |
| 3527 | mutex_unlock(&devlink_mutex); |
| 3528 | cb->args[0] = idx; |
| 3529 | return msg->len; |
| 3530 | } |
| 3531 | |
Alex Vesker | 866319b | 2018-07-12 15:13:13 +0300 | [diff] [blame] | 3532 | static int devlink_nl_cmd_region_del(struct sk_buff *skb, |
| 3533 | struct genl_info *info) |
| 3534 | { |
| 3535 | struct devlink *devlink = info->user_ptr[0]; |
| 3536 | struct devlink_snapshot *snapshot; |
| 3537 | struct devlink_region *region; |
| 3538 | const char *region_name; |
| 3539 | u32 snapshot_id; |
| 3540 | |
| 3541 | if (!info->attrs[DEVLINK_ATTR_REGION_NAME] || |
| 3542 | !info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) |
| 3543 | return -EINVAL; |
| 3544 | |
| 3545 | region_name = nla_data(info->attrs[DEVLINK_ATTR_REGION_NAME]); |
| 3546 | snapshot_id = nla_get_u32(info->attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); |
| 3547 | |
| 3548 | region = devlink_region_get_by_name(devlink, region_name); |
| 3549 | if (!region) |
| 3550 | return -EINVAL; |
| 3551 | |
| 3552 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); |
| 3553 | if (!snapshot) |
| 3554 | return -EINVAL; |
| 3555 | |
| 3556 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_DEL); |
| 3557 | devlink_region_snapshot_del(snapshot); |
| 3558 | return 0; |
| 3559 | } |
| 3560 | |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3561 | static int devlink_nl_cmd_region_read_chunk_fill(struct sk_buff *msg, |
| 3562 | struct devlink *devlink, |
| 3563 | u8 *chunk, u32 chunk_size, |
| 3564 | u64 addr) |
| 3565 | { |
| 3566 | struct nlattr *chunk_attr; |
| 3567 | int err; |
| 3568 | |
| 3569 | chunk_attr = nla_nest_start(msg, DEVLINK_ATTR_REGION_CHUNK); |
| 3570 | if (!chunk_attr) |
| 3571 | return -EINVAL; |
| 3572 | |
| 3573 | err = nla_put(msg, DEVLINK_ATTR_REGION_CHUNK_DATA, chunk_size, chunk); |
| 3574 | if (err) |
| 3575 | goto nla_put_failure; |
| 3576 | |
| 3577 | err = nla_put_u64_64bit(msg, DEVLINK_ATTR_REGION_CHUNK_ADDR, addr, |
| 3578 | DEVLINK_ATTR_PAD); |
| 3579 | if (err) |
| 3580 | goto nla_put_failure; |
| 3581 | |
| 3582 | nla_nest_end(msg, chunk_attr); |
| 3583 | return 0; |
| 3584 | |
| 3585 | nla_put_failure: |
| 3586 | nla_nest_cancel(msg, chunk_attr); |
| 3587 | return err; |
| 3588 | } |
| 3589 | |
| 3590 | #define DEVLINK_REGION_READ_CHUNK_SIZE 256 |
| 3591 | |
| 3592 | static int devlink_nl_region_read_snapshot_fill(struct sk_buff *skb, |
| 3593 | struct devlink *devlink, |
| 3594 | struct devlink_region *region, |
| 3595 | struct nlattr **attrs, |
| 3596 | u64 start_offset, |
| 3597 | u64 end_offset, |
| 3598 | bool dump, |
| 3599 | u64 *new_offset) |
| 3600 | { |
| 3601 | struct devlink_snapshot *snapshot; |
| 3602 | u64 curr_offset = start_offset; |
| 3603 | u32 snapshot_id; |
| 3604 | int err = 0; |
| 3605 | |
| 3606 | *new_offset = start_offset; |
| 3607 | |
| 3608 | snapshot_id = nla_get_u32(attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]); |
| 3609 | snapshot = devlink_region_snapshot_get_by_id(region, snapshot_id); |
| 3610 | if (!snapshot) |
| 3611 | return -EINVAL; |
| 3612 | |
| 3613 | if (end_offset > snapshot->data_len || dump) |
| 3614 | end_offset = snapshot->data_len; |
| 3615 | |
| 3616 | while (curr_offset < end_offset) { |
| 3617 | u32 data_size; |
| 3618 | u8 *data; |
| 3619 | |
| 3620 | if (end_offset - curr_offset < DEVLINK_REGION_READ_CHUNK_SIZE) |
| 3621 | data_size = end_offset - curr_offset; |
| 3622 | else |
| 3623 | data_size = DEVLINK_REGION_READ_CHUNK_SIZE; |
| 3624 | |
| 3625 | data = &snapshot->data[curr_offset]; |
| 3626 | err = devlink_nl_cmd_region_read_chunk_fill(skb, devlink, |
| 3627 | data, data_size, |
| 3628 | curr_offset); |
| 3629 | if (err) |
| 3630 | break; |
| 3631 | |
| 3632 | curr_offset += data_size; |
| 3633 | } |
| 3634 | *new_offset = curr_offset; |
| 3635 | |
| 3636 | return err; |
| 3637 | } |
| 3638 | |
| 3639 | static int devlink_nl_cmd_region_read_dumpit(struct sk_buff *skb, |
| 3640 | struct netlink_callback *cb) |
| 3641 | { |
| 3642 | u64 ret_offset, start_offset, end_offset = 0; |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3643 | const struct genl_ops *ops = cb->data; |
| 3644 | struct devlink_region *region; |
| 3645 | struct nlattr *chunks_attr; |
| 3646 | const char *region_name; |
| 3647 | struct devlink *devlink; |
Jakub Kicinski | 6875056 | 2019-02-10 19:35:28 -0800 | [diff] [blame] | 3648 | struct nlattr **attrs; |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3649 | bool dump = true; |
| 3650 | void *hdr; |
| 3651 | int err; |
| 3652 | |
| 3653 | start_offset = *((u64 *)&cb->args[0]); |
| 3654 | |
Jakub Kicinski | 6875056 | 2019-02-10 19:35:28 -0800 | [diff] [blame] | 3655 | attrs = kmalloc_array(DEVLINK_ATTR_MAX + 1, sizeof(*attrs), GFP_KERNEL); |
| 3656 | if (!attrs) |
| 3657 | return -ENOMEM; |
| 3658 | |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3659 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + devlink_nl_family.hdrsize, |
David Ahern | dac9c97 | 2018-10-07 20:16:24 -0700 | [diff] [blame] | 3660 | attrs, DEVLINK_ATTR_MAX, ops->policy, cb->extack); |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3661 | if (err) |
Jakub Kicinski | 6875056 | 2019-02-10 19:35:28 -0800 | [diff] [blame] | 3662 | goto out_free; |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3663 | |
Parav Pandit | dac7c08 | 2019-02-12 14:24:08 -0600 | [diff] [blame] | 3664 | mutex_lock(&devlink_mutex); |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3665 | devlink = devlink_get_from_attrs(sock_net(cb->skb->sk), attrs); |
Parav Pandit | fdd41ec | 2019-02-12 14:23:58 -0600 | [diff] [blame] | 3666 | if (IS_ERR(devlink)) { |
| 3667 | err = PTR_ERR(devlink); |
Parav Pandit | dac7c08 | 2019-02-12 14:24:08 -0600 | [diff] [blame] | 3668 | goto out_dev; |
Parav Pandit | fdd41ec | 2019-02-12 14:23:58 -0600 | [diff] [blame] | 3669 | } |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3670 | |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3671 | mutex_lock(&devlink->lock); |
| 3672 | |
| 3673 | if (!attrs[DEVLINK_ATTR_REGION_NAME] || |
Parav Pandit | fdd41ec | 2019-02-12 14:23:58 -0600 | [diff] [blame] | 3674 | !attrs[DEVLINK_ATTR_REGION_SNAPSHOT_ID]) { |
| 3675 | err = -EINVAL; |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3676 | goto out_unlock; |
Parav Pandit | fdd41ec | 2019-02-12 14:23:58 -0600 | [diff] [blame] | 3677 | } |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3678 | |
| 3679 | region_name = nla_data(attrs[DEVLINK_ATTR_REGION_NAME]); |
| 3680 | region = devlink_region_get_by_name(devlink, region_name); |
Parav Pandit | fdd41ec | 2019-02-12 14:23:58 -0600 | [diff] [blame] | 3681 | if (!region) { |
| 3682 | err = -EINVAL; |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3683 | goto out_unlock; |
Parav Pandit | fdd41ec | 2019-02-12 14:23:58 -0600 | [diff] [blame] | 3684 | } |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3685 | |
| 3686 | hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, |
| 3687 | &devlink_nl_family, NLM_F_ACK | NLM_F_MULTI, |
| 3688 | DEVLINK_CMD_REGION_READ); |
Parav Pandit | fdd41ec | 2019-02-12 14:23:58 -0600 | [diff] [blame] | 3689 | if (!hdr) { |
| 3690 | err = -EMSGSIZE; |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3691 | goto out_unlock; |
Parav Pandit | fdd41ec | 2019-02-12 14:23:58 -0600 | [diff] [blame] | 3692 | } |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3693 | |
| 3694 | err = devlink_nl_put_handle(skb, devlink); |
| 3695 | if (err) |
| 3696 | goto nla_put_failure; |
| 3697 | |
| 3698 | err = nla_put_string(skb, DEVLINK_ATTR_REGION_NAME, region_name); |
| 3699 | if (err) |
| 3700 | goto nla_put_failure; |
| 3701 | |
| 3702 | chunks_attr = nla_nest_start(skb, DEVLINK_ATTR_REGION_CHUNKS); |
Parav Pandit | fdd41ec | 2019-02-12 14:23:58 -0600 | [diff] [blame] | 3703 | if (!chunks_attr) { |
| 3704 | err = -EMSGSIZE; |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3705 | goto nla_put_failure; |
Parav Pandit | fdd41ec | 2019-02-12 14:23:58 -0600 | [diff] [blame] | 3706 | } |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3707 | |
| 3708 | if (attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR] && |
| 3709 | attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]) { |
| 3710 | if (!start_offset) |
| 3711 | start_offset = |
| 3712 | nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); |
| 3713 | |
| 3714 | end_offset = nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_ADDR]); |
| 3715 | end_offset += nla_get_u64(attrs[DEVLINK_ATTR_REGION_CHUNK_LEN]); |
| 3716 | dump = false; |
| 3717 | } |
| 3718 | |
| 3719 | err = devlink_nl_region_read_snapshot_fill(skb, devlink, |
| 3720 | region, attrs, |
| 3721 | start_offset, |
| 3722 | end_offset, dump, |
| 3723 | &ret_offset); |
| 3724 | |
| 3725 | if (err && err != -EMSGSIZE) |
| 3726 | goto nla_put_failure; |
| 3727 | |
| 3728 | /* Check if there was any progress done to prevent infinite loop */ |
Parav Pandit | fdd41ec | 2019-02-12 14:23:58 -0600 | [diff] [blame] | 3729 | if (ret_offset == start_offset) { |
| 3730 | err = -EINVAL; |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3731 | goto nla_put_failure; |
Parav Pandit | fdd41ec | 2019-02-12 14:23:58 -0600 | [diff] [blame] | 3732 | } |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3733 | |
| 3734 | *((u64 *)&cb->args[0]) = ret_offset; |
| 3735 | |
| 3736 | nla_nest_end(skb, chunks_attr); |
| 3737 | genlmsg_end(skb, hdr); |
| 3738 | mutex_unlock(&devlink->lock); |
| 3739 | mutex_unlock(&devlink_mutex); |
Jakub Kicinski | 6875056 | 2019-02-10 19:35:28 -0800 | [diff] [blame] | 3740 | kfree(attrs); |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3741 | |
| 3742 | return skb->len; |
| 3743 | |
| 3744 | nla_put_failure: |
| 3745 | genlmsg_cancel(skb, hdr); |
| 3746 | out_unlock: |
| 3747 | mutex_unlock(&devlink->lock); |
Parav Pandit | dac7c08 | 2019-02-12 14:24:08 -0600 | [diff] [blame] | 3748 | out_dev: |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3749 | mutex_unlock(&devlink_mutex); |
Jakub Kicinski | 6875056 | 2019-02-10 19:35:28 -0800 | [diff] [blame] | 3750 | out_free: |
| 3751 | kfree(attrs); |
Parav Pandit | fdd41ec | 2019-02-12 14:23:58 -0600 | [diff] [blame] | 3752 | return err; |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 3753 | } |
| 3754 | |
Jakub Kicinski | f9cf228 | 2019-01-31 10:50:40 -0800 | [diff] [blame] | 3755 | struct devlink_info_req { |
| 3756 | struct sk_buff *msg; |
| 3757 | }; |
| 3758 | |
| 3759 | int devlink_info_driver_name_put(struct devlink_info_req *req, const char *name) |
| 3760 | { |
| 3761 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_DRIVER_NAME, name); |
| 3762 | } |
| 3763 | EXPORT_SYMBOL_GPL(devlink_info_driver_name_put); |
| 3764 | |
| 3765 | int devlink_info_serial_number_put(struct devlink_info_req *req, const char *sn) |
| 3766 | { |
| 3767 | return nla_put_string(req->msg, DEVLINK_ATTR_INFO_SERIAL_NUMBER, sn); |
| 3768 | } |
| 3769 | EXPORT_SYMBOL_GPL(devlink_info_serial_number_put); |
| 3770 | |
Jakub Kicinski | fc6fae7 | 2019-01-31 10:50:41 -0800 | [diff] [blame] | 3771 | static int devlink_info_version_put(struct devlink_info_req *req, int attr, |
| 3772 | const char *version_name, |
| 3773 | const char *version_value) |
| 3774 | { |
| 3775 | struct nlattr *nest; |
| 3776 | int err; |
| 3777 | |
| 3778 | nest = nla_nest_start(req->msg, attr); |
| 3779 | if (!nest) |
| 3780 | return -EMSGSIZE; |
| 3781 | |
| 3782 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_NAME, |
| 3783 | version_name); |
| 3784 | if (err) |
| 3785 | goto nla_put_failure; |
| 3786 | |
| 3787 | err = nla_put_string(req->msg, DEVLINK_ATTR_INFO_VERSION_VALUE, |
| 3788 | version_value); |
| 3789 | if (err) |
| 3790 | goto nla_put_failure; |
| 3791 | |
| 3792 | nla_nest_end(req->msg, nest); |
| 3793 | |
| 3794 | return 0; |
| 3795 | |
| 3796 | nla_put_failure: |
| 3797 | nla_nest_cancel(req->msg, nest); |
| 3798 | return err; |
| 3799 | } |
| 3800 | |
| 3801 | int devlink_info_version_fixed_put(struct devlink_info_req *req, |
| 3802 | const char *version_name, |
| 3803 | const char *version_value) |
| 3804 | { |
| 3805 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_FIXED, |
| 3806 | version_name, version_value); |
| 3807 | } |
| 3808 | EXPORT_SYMBOL_GPL(devlink_info_version_fixed_put); |
| 3809 | |
| 3810 | int devlink_info_version_stored_put(struct devlink_info_req *req, |
| 3811 | const char *version_name, |
| 3812 | const char *version_value) |
| 3813 | { |
| 3814 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_STORED, |
| 3815 | version_name, version_value); |
| 3816 | } |
| 3817 | EXPORT_SYMBOL_GPL(devlink_info_version_stored_put); |
| 3818 | |
| 3819 | int devlink_info_version_running_put(struct devlink_info_req *req, |
| 3820 | const char *version_name, |
| 3821 | const char *version_value) |
| 3822 | { |
| 3823 | return devlink_info_version_put(req, DEVLINK_ATTR_INFO_VERSION_RUNNING, |
| 3824 | version_name, version_value); |
| 3825 | } |
| 3826 | EXPORT_SYMBOL_GPL(devlink_info_version_running_put); |
| 3827 | |
Jakub Kicinski | f9cf228 | 2019-01-31 10:50:40 -0800 | [diff] [blame] | 3828 | static int |
| 3829 | devlink_nl_info_fill(struct sk_buff *msg, struct devlink *devlink, |
| 3830 | enum devlink_command cmd, u32 portid, |
| 3831 | u32 seq, int flags, struct netlink_ext_ack *extack) |
| 3832 | { |
| 3833 | struct devlink_info_req req; |
| 3834 | void *hdr; |
| 3835 | int err; |
| 3836 | |
| 3837 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); |
| 3838 | if (!hdr) |
| 3839 | return -EMSGSIZE; |
| 3840 | |
| 3841 | err = -EMSGSIZE; |
| 3842 | if (devlink_nl_put_handle(msg, devlink)) |
| 3843 | goto err_cancel_msg; |
| 3844 | |
| 3845 | req.msg = msg; |
| 3846 | err = devlink->ops->info_get(devlink, &req, extack); |
| 3847 | if (err) |
| 3848 | goto err_cancel_msg; |
| 3849 | |
| 3850 | genlmsg_end(msg, hdr); |
| 3851 | return 0; |
| 3852 | |
| 3853 | err_cancel_msg: |
| 3854 | genlmsg_cancel(msg, hdr); |
| 3855 | return err; |
| 3856 | } |
| 3857 | |
| 3858 | static int devlink_nl_cmd_info_get_doit(struct sk_buff *skb, |
| 3859 | struct genl_info *info) |
| 3860 | { |
| 3861 | struct devlink *devlink = info->user_ptr[0]; |
| 3862 | struct sk_buff *msg; |
| 3863 | int err; |
| 3864 | |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 3865 | if (!devlink->ops->info_get) |
Jakub Kicinski | f9cf228 | 2019-01-31 10:50:40 -0800 | [diff] [blame] | 3866 | return -EOPNOTSUPP; |
| 3867 | |
| 3868 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 3869 | if (!msg) |
| 3870 | return -ENOMEM; |
| 3871 | |
| 3872 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, |
| 3873 | info->snd_portid, info->snd_seq, 0, |
| 3874 | info->extack); |
| 3875 | if (err) { |
| 3876 | nlmsg_free(msg); |
| 3877 | return err; |
| 3878 | } |
| 3879 | |
| 3880 | return genlmsg_reply(msg, info); |
| 3881 | } |
| 3882 | |
| 3883 | static int devlink_nl_cmd_info_get_dumpit(struct sk_buff *msg, |
| 3884 | struct netlink_callback *cb) |
| 3885 | { |
| 3886 | struct devlink *devlink; |
| 3887 | int start = cb->args[0]; |
| 3888 | int idx = 0; |
| 3889 | int err; |
| 3890 | |
| 3891 | mutex_lock(&devlink_mutex); |
| 3892 | list_for_each_entry(devlink, &devlink_list, list) { |
| 3893 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) |
| 3894 | continue; |
| 3895 | if (idx < start) { |
| 3896 | idx++; |
| 3897 | continue; |
| 3898 | } |
| 3899 | |
| 3900 | mutex_lock(&devlink->lock); |
| 3901 | err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET, |
| 3902 | NETLINK_CB(cb->skb).portid, |
| 3903 | cb->nlh->nlmsg_seq, NLM_F_MULTI, |
| 3904 | cb->extack); |
| 3905 | mutex_unlock(&devlink->lock); |
| 3906 | if (err) |
| 3907 | break; |
| 3908 | idx++; |
| 3909 | } |
| 3910 | mutex_unlock(&devlink_mutex); |
| 3911 | |
| 3912 | cb->args[0] = idx; |
| 3913 | return msg->len; |
| 3914 | } |
| 3915 | |
Eran Ben Elisha | 1db64e8 | 2019-02-07 11:36:32 +0200 | [diff] [blame] | 3916 | struct devlink_fmsg_item { |
| 3917 | struct list_head list; |
| 3918 | int attrtype; |
| 3919 | u8 nla_type; |
| 3920 | u16 len; |
| 3921 | int value[0]; |
| 3922 | }; |
| 3923 | |
| 3924 | struct devlink_fmsg { |
| 3925 | struct list_head item_list; |
| 3926 | }; |
| 3927 | |
| 3928 | static struct devlink_fmsg *devlink_fmsg_alloc(void) |
| 3929 | { |
| 3930 | struct devlink_fmsg *fmsg; |
| 3931 | |
| 3932 | fmsg = kzalloc(sizeof(*fmsg), GFP_KERNEL); |
| 3933 | if (!fmsg) |
| 3934 | return NULL; |
| 3935 | |
| 3936 | INIT_LIST_HEAD(&fmsg->item_list); |
| 3937 | |
| 3938 | return fmsg; |
| 3939 | } |
| 3940 | |
| 3941 | static void devlink_fmsg_free(struct devlink_fmsg *fmsg) |
| 3942 | { |
| 3943 | struct devlink_fmsg_item *item, *tmp; |
| 3944 | |
| 3945 | list_for_each_entry_safe(item, tmp, &fmsg->item_list, list) { |
| 3946 | list_del(&item->list); |
| 3947 | kfree(item); |
| 3948 | } |
| 3949 | kfree(fmsg); |
| 3950 | } |
| 3951 | |
| 3952 | static int devlink_fmsg_nest_common(struct devlink_fmsg *fmsg, |
| 3953 | int attrtype) |
| 3954 | { |
| 3955 | struct devlink_fmsg_item *item; |
| 3956 | |
| 3957 | item = kzalloc(sizeof(*item), GFP_KERNEL); |
| 3958 | if (!item) |
| 3959 | return -ENOMEM; |
| 3960 | |
| 3961 | item->attrtype = attrtype; |
| 3962 | list_add_tail(&item->list, &fmsg->item_list); |
| 3963 | |
| 3964 | return 0; |
| 3965 | } |
| 3966 | |
| 3967 | int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg) |
| 3968 | { |
| 3969 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_OBJ_NEST_START); |
| 3970 | } |
| 3971 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_start); |
| 3972 | |
| 3973 | static int devlink_fmsg_nest_end(struct devlink_fmsg *fmsg) |
| 3974 | { |
| 3975 | return devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_NEST_END); |
| 3976 | } |
| 3977 | |
| 3978 | int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg) |
| 3979 | { |
| 3980 | return devlink_fmsg_nest_end(fmsg); |
| 3981 | } |
| 3982 | EXPORT_SYMBOL_GPL(devlink_fmsg_obj_nest_end); |
| 3983 | |
| 3984 | #define DEVLINK_FMSG_MAX_SIZE (GENLMSG_DEFAULT_SIZE - GENL_HDRLEN - NLA_HDRLEN) |
| 3985 | |
| 3986 | static int devlink_fmsg_put_name(struct devlink_fmsg *fmsg, const char *name) |
| 3987 | { |
| 3988 | struct devlink_fmsg_item *item; |
| 3989 | |
| 3990 | if (strlen(name) + 1 > DEVLINK_FMSG_MAX_SIZE) |
| 3991 | return -EMSGSIZE; |
| 3992 | |
| 3993 | item = kzalloc(sizeof(*item) + strlen(name) + 1, GFP_KERNEL); |
| 3994 | if (!item) |
| 3995 | return -ENOMEM; |
| 3996 | |
| 3997 | item->nla_type = NLA_NUL_STRING; |
| 3998 | item->len = strlen(name) + 1; |
| 3999 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_NAME; |
| 4000 | memcpy(&item->value, name, item->len); |
| 4001 | list_add_tail(&item->list, &fmsg->item_list); |
| 4002 | |
| 4003 | return 0; |
| 4004 | } |
| 4005 | |
| 4006 | int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name) |
| 4007 | { |
| 4008 | int err; |
| 4009 | |
| 4010 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_PAIR_NEST_START); |
| 4011 | if (err) |
| 4012 | return err; |
| 4013 | |
| 4014 | err = devlink_fmsg_put_name(fmsg, name); |
| 4015 | if (err) |
| 4016 | return err; |
| 4017 | |
| 4018 | return 0; |
| 4019 | } |
| 4020 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_start); |
| 4021 | |
| 4022 | int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg) |
| 4023 | { |
| 4024 | return devlink_fmsg_nest_end(fmsg); |
| 4025 | } |
| 4026 | EXPORT_SYMBOL_GPL(devlink_fmsg_pair_nest_end); |
| 4027 | |
| 4028 | int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg, |
| 4029 | const char *name) |
| 4030 | { |
| 4031 | int err; |
| 4032 | |
| 4033 | err = devlink_fmsg_pair_nest_start(fmsg, name); |
| 4034 | if (err) |
| 4035 | return err; |
| 4036 | |
| 4037 | err = devlink_fmsg_nest_common(fmsg, DEVLINK_ATTR_FMSG_ARR_NEST_START); |
| 4038 | if (err) |
| 4039 | return err; |
| 4040 | |
| 4041 | return 0; |
| 4042 | } |
| 4043 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_start); |
| 4044 | |
| 4045 | int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg) |
| 4046 | { |
| 4047 | int err; |
| 4048 | |
| 4049 | err = devlink_fmsg_nest_end(fmsg); |
| 4050 | if (err) |
| 4051 | return err; |
| 4052 | |
| 4053 | err = devlink_fmsg_nest_end(fmsg); |
| 4054 | if (err) |
| 4055 | return err; |
| 4056 | |
| 4057 | return 0; |
| 4058 | } |
| 4059 | EXPORT_SYMBOL_GPL(devlink_fmsg_arr_pair_nest_end); |
| 4060 | |
| 4061 | static int devlink_fmsg_put_value(struct devlink_fmsg *fmsg, |
| 4062 | const void *value, u16 value_len, |
| 4063 | u8 value_nla_type) |
| 4064 | { |
| 4065 | struct devlink_fmsg_item *item; |
| 4066 | |
| 4067 | if (value_len > DEVLINK_FMSG_MAX_SIZE) |
| 4068 | return -EMSGSIZE; |
| 4069 | |
| 4070 | item = kzalloc(sizeof(*item) + value_len, GFP_KERNEL); |
| 4071 | if (!item) |
| 4072 | return -ENOMEM; |
| 4073 | |
| 4074 | item->nla_type = value_nla_type; |
| 4075 | item->len = value_len; |
| 4076 | item->attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; |
| 4077 | memcpy(&item->value, value, item->len); |
| 4078 | list_add_tail(&item->list, &fmsg->item_list); |
| 4079 | |
| 4080 | return 0; |
| 4081 | } |
| 4082 | |
| 4083 | int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value) |
| 4084 | { |
| 4085 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_FLAG); |
| 4086 | } |
| 4087 | EXPORT_SYMBOL_GPL(devlink_fmsg_bool_put); |
| 4088 | |
| 4089 | int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value) |
| 4090 | { |
| 4091 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U8); |
| 4092 | } |
| 4093 | EXPORT_SYMBOL_GPL(devlink_fmsg_u8_put); |
| 4094 | |
| 4095 | int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value) |
| 4096 | { |
| 4097 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U32); |
| 4098 | } |
| 4099 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_put); |
| 4100 | |
| 4101 | int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value) |
| 4102 | { |
| 4103 | return devlink_fmsg_put_value(fmsg, &value, sizeof(value), NLA_U64); |
| 4104 | } |
| 4105 | EXPORT_SYMBOL_GPL(devlink_fmsg_u64_put); |
| 4106 | |
| 4107 | int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value) |
| 4108 | { |
| 4109 | return devlink_fmsg_put_value(fmsg, value, strlen(value) + 1, |
| 4110 | NLA_NUL_STRING); |
| 4111 | } |
| 4112 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_put); |
| 4113 | |
| 4114 | int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value, |
| 4115 | u16 value_len) |
| 4116 | { |
| 4117 | return devlink_fmsg_put_value(fmsg, value, value_len, NLA_BINARY); |
| 4118 | } |
| 4119 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_put); |
| 4120 | |
| 4121 | int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name, |
| 4122 | bool value) |
| 4123 | { |
| 4124 | int err; |
| 4125 | |
| 4126 | err = devlink_fmsg_pair_nest_start(fmsg, name); |
| 4127 | if (err) |
| 4128 | return err; |
| 4129 | |
| 4130 | err = devlink_fmsg_bool_put(fmsg, value); |
| 4131 | if (err) |
| 4132 | return err; |
| 4133 | |
| 4134 | err = devlink_fmsg_pair_nest_end(fmsg); |
| 4135 | if (err) |
| 4136 | return err; |
| 4137 | |
| 4138 | return 0; |
| 4139 | } |
| 4140 | EXPORT_SYMBOL_GPL(devlink_fmsg_bool_pair_put); |
| 4141 | |
| 4142 | int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name, |
| 4143 | u8 value) |
| 4144 | { |
| 4145 | int err; |
| 4146 | |
| 4147 | err = devlink_fmsg_pair_nest_start(fmsg, name); |
| 4148 | if (err) |
| 4149 | return err; |
| 4150 | |
| 4151 | err = devlink_fmsg_u8_put(fmsg, value); |
| 4152 | if (err) |
| 4153 | return err; |
| 4154 | |
| 4155 | err = devlink_fmsg_pair_nest_end(fmsg); |
| 4156 | if (err) |
| 4157 | return err; |
| 4158 | |
| 4159 | return 0; |
| 4160 | } |
| 4161 | EXPORT_SYMBOL_GPL(devlink_fmsg_u8_pair_put); |
| 4162 | |
| 4163 | int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name, |
| 4164 | u32 value) |
| 4165 | { |
| 4166 | int err; |
| 4167 | |
| 4168 | err = devlink_fmsg_pair_nest_start(fmsg, name); |
| 4169 | if (err) |
| 4170 | return err; |
| 4171 | |
| 4172 | err = devlink_fmsg_u32_put(fmsg, value); |
| 4173 | if (err) |
| 4174 | return err; |
| 4175 | |
| 4176 | err = devlink_fmsg_pair_nest_end(fmsg); |
| 4177 | if (err) |
| 4178 | return err; |
| 4179 | |
| 4180 | return 0; |
| 4181 | } |
| 4182 | EXPORT_SYMBOL_GPL(devlink_fmsg_u32_pair_put); |
| 4183 | |
| 4184 | int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name, |
| 4185 | u64 value) |
| 4186 | { |
| 4187 | int err; |
| 4188 | |
| 4189 | err = devlink_fmsg_pair_nest_start(fmsg, name); |
| 4190 | if (err) |
| 4191 | return err; |
| 4192 | |
| 4193 | err = devlink_fmsg_u64_put(fmsg, value); |
| 4194 | if (err) |
| 4195 | return err; |
| 4196 | |
| 4197 | err = devlink_fmsg_pair_nest_end(fmsg); |
| 4198 | if (err) |
| 4199 | return err; |
| 4200 | |
| 4201 | return 0; |
| 4202 | } |
| 4203 | EXPORT_SYMBOL_GPL(devlink_fmsg_u64_pair_put); |
| 4204 | |
| 4205 | int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name, |
| 4206 | const char *value) |
| 4207 | { |
| 4208 | int err; |
| 4209 | |
| 4210 | err = devlink_fmsg_pair_nest_start(fmsg, name); |
| 4211 | if (err) |
| 4212 | return err; |
| 4213 | |
| 4214 | err = devlink_fmsg_string_put(fmsg, value); |
| 4215 | if (err) |
| 4216 | return err; |
| 4217 | |
| 4218 | err = devlink_fmsg_pair_nest_end(fmsg); |
| 4219 | if (err) |
| 4220 | return err; |
| 4221 | |
| 4222 | return 0; |
| 4223 | } |
| 4224 | EXPORT_SYMBOL_GPL(devlink_fmsg_string_pair_put); |
| 4225 | |
| 4226 | int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name, |
| 4227 | const void *value, u16 value_len) |
| 4228 | { |
| 4229 | int err; |
| 4230 | |
| 4231 | err = devlink_fmsg_pair_nest_start(fmsg, name); |
| 4232 | if (err) |
| 4233 | return err; |
| 4234 | |
| 4235 | err = devlink_fmsg_binary_put(fmsg, value, value_len); |
| 4236 | if (err) |
| 4237 | return err; |
| 4238 | |
| 4239 | err = devlink_fmsg_pair_nest_end(fmsg); |
| 4240 | if (err) |
| 4241 | return err; |
| 4242 | |
| 4243 | return 0; |
| 4244 | } |
| 4245 | EXPORT_SYMBOL_GPL(devlink_fmsg_binary_pair_put); |
| 4246 | |
| 4247 | static int |
| 4248 | devlink_fmsg_item_fill_type(struct devlink_fmsg_item *msg, struct sk_buff *skb) |
| 4249 | { |
| 4250 | switch (msg->nla_type) { |
| 4251 | case NLA_FLAG: |
| 4252 | case NLA_U8: |
| 4253 | case NLA_U32: |
| 4254 | case NLA_U64: |
| 4255 | case NLA_NUL_STRING: |
| 4256 | case NLA_BINARY: |
| 4257 | return nla_put_u8(skb, DEVLINK_ATTR_FMSG_OBJ_VALUE_TYPE, |
| 4258 | msg->nla_type); |
| 4259 | default: |
| 4260 | return -EINVAL; |
| 4261 | } |
| 4262 | } |
| 4263 | |
| 4264 | static int |
| 4265 | devlink_fmsg_item_fill_data(struct devlink_fmsg_item *msg, struct sk_buff *skb) |
| 4266 | { |
| 4267 | int attrtype = DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA; |
| 4268 | u8 tmp; |
| 4269 | |
| 4270 | switch (msg->nla_type) { |
| 4271 | case NLA_FLAG: |
| 4272 | /* Always provide flag data, regardless of its value */ |
| 4273 | tmp = *(bool *) msg->value; |
| 4274 | |
| 4275 | return nla_put_u8(skb, attrtype, tmp); |
| 4276 | case NLA_U8: |
| 4277 | return nla_put_u8(skb, attrtype, *(u8 *) msg->value); |
| 4278 | case NLA_U32: |
| 4279 | return nla_put_u32(skb, attrtype, *(u32 *) msg->value); |
| 4280 | case NLA_U64: |
| 4281 | return nla_put_u64_64bit(skb, attrtype, *(u64 *) msg->value, |
| 4282 | DEVLINK_ATTR_PAD); |
| 4283 | case NLA_NUL_STRING: |
| 4284 | return nla_put_string(skb, attrtype, (char *) &msg->value); |
| 4285 | case NLA_BINARY: |
| 4286 | return nla_put(skb, attrtype, msg->len, (void *) &msg->value); |
| 4287 | default: |
| 4288 | return -EINVAL; |
| 4289 | } |
| 4290 | } |
| 4291 | |
| 4292 | static int |
| 4293 | devlink_fmsg_prepare_skb(struct devlink_fmsg *fmsg, struct sk_buff *skb, |
| 4294 | int *start) |
| 4295 | { |
| 4296 | struct devlink_fmsg_item *item; |
| 4297 | struct nlattr *fmsg_nlattr; |
| 4298 | int i = 0; |
| 4299 | int err; |
| 4300 | |
| 4301 | fmsg_nlattr = nla_nest_start(skb, DEVLINK_ATTR_FMSG); |
| 4302 | if (!fmsg_nlattr) |
| 4303 | return -EMSGSIZE; |
| 4304 | |
| 4305 | list_for_each_entry(item, &fmsg->item_list, list) { |
| 4306 | if (i < *start) { |
| 4307 | i++; |
| 4308 | continue; |
| 4309 | } |
| 4310 | |
| 4311 | switch (item->attrtype) { |
| 4312 | case DEVLINK_ATTR_FMSG_OBJ_NEST_START: |
| 4313 | case DEVLINK_ATTR_FMSG_PAIR_NEST_START: |
| 4314 | case DEVLINK_ATTR_FMSG_ARR_NEST_START: |
| 4315 | case DEVLINK_ATTR_FMSG_NEST_END: |
| 4316 | err = nla_put_flag(skb, item->attrtype); |
| 4317 | break; |
| 4318 | case DEVLINK_ATTR_FMSG_OBJ_VALUE_DATA: |
| 4319 | err = devlink_fmsg_item_fill_type(item, skb); |
| 4320 | if (err) |
| 4321 | break; |
| 4322 | err = devlink_fmsg_item_fill_data(item, skb); |
| 4323 | break; |
| 4324 | case DEVLINK_ATTR_FMSG_OBJ_NAME: |
| 4325 | err = nla_put_string(skb, item->attrtype, |
| 4326 | (char *) &item->value); |
| 4327 | break; |
| 4328 | default: |
| 4329 | err = -EINVAL; |
| 4330 | break; |
| 4331 | } |
| 4332 | if (!err) |
| 4333 | *start = ++i; |
| 4334 | else |
| 4335 | break; |
| 4336 | } |
| 4337 | |
| 4338 | nla_nest_end(skb, fmsg_nlattr); |
| 4339 | return err; |
| 4340 | } |
| 4341 | |
| 4342 | static int devlink_fmsg_snd(struct devlink_fmsg *fmsg, |
| 4343 | struct genl_info *info, |
| 4344 | enum devlink_command cmd, int flags) |
| 4345 | { |
| 4346 | struct nlmsghdr *nlh; |
| 4347 | struct sk_buff *skb; |
| 4348 | bool last = false; |
| 4349 | int index = 0; |
| 4350 | void *hdr; |
| 4351 | int err; |
| 4352 | |
| 4353 | while (!last) { |
| 4354 | int tmp_index = index; |
| 4355 | |
| 4356 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 4357 | if (!skb) |
| 4358 | return -ENOMEM; |
| 4359 | |
| 4360 | hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq, |
| 4361 | &devlink_nl_family, flags | NLM_F_MULTI, cmd); |
| 4362 | if (!hdr) { |
| 4363 | err = -EMSGSIZE; |
| 4364 | goto nla_put_failure; |
| 4365 | } |
| 4366 | |
| 4367 | err = devlink_fmsg_prepare_skb(fmsg, skb, &index); |
| 4368 | if (!err) |
| 4369 | last = true; |
| 4370 | else if (err != -EMSGSIZE || tmp_index == index) |
| 4371 | goto nla_put_failure; |
| 4372 | |
| 4373 | genlmsg_end(skb, hdr); |
| 4374 | err = genlmsg_reply(skb, info); |
| 4375 | if (err) |
| 4376 | return err; |
| 4377 | } |
| 4378 | |
| 4379 | skb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 4380 | if (!skb) |
| 4381 | return -ENOMEM; |
| 4382 | nlh = nlmsg_put(skb, info->snd_portid, info->snd_seq, |
| 4383 | NLMSG_DONE, 0, flags | NLM_F_MULTI); |
| 4384 | if (!nlh) { |
| 4385 | err = -EMSGSIZE; |
| 4386 | goto nla_put_failure; |
| 4387 | } |
Eran Ben Elisha | 1db64e8 | 2019-02-07 11:36:32 +0200 | [diff] [blame] | 4388 | |
Li RongQing | fde55ea | 2019-02-11 19:09:07 +0800 | [diff] [blame] | 4389 | return genlmsg_reply(skb, info); |
Eran Ben Elisha | 1db64e8 | 2019-02-07 11:36:32 +0200 | [diff] [blame] | 4390 | |
| 4391 | nla_put_failure: |
| 4392 | nlmsg_free(skb); |
| 4393 | return err; |
| 4394 | } |
| 4395 | |
Eran Ben Elisha | a0bdcc5 | 2019-02-07 11:36:33 +0200 | [diff] [blame] | 4396 | struct devlink_health_reporter { |
| 4397 | struct list_head list; |
| 4398 | void *priv; |
| 4399 | const struct devlink_health_reporter_ops *ops; |
| 4400 | struct devlink *devlink; |
Eran Ben Elisha | c8e1da0 | 2019-02-07 11:36:34 +0200 | [diff] [blame] | 4401 | struct devlink_fmsg *dump_fmsg; |
| 4402 | struct mutex dump_lock; /* lock parallel read/write from dump buffers */ |
Eran Ben Elisha | a0bdcc5 | 2019-02-07 11:36:33 +0200 | [diff] [blame] | 4403 | u64 graceful_period; |
| 4404 | bool auto_recover; |
| 4405 | u8 health_state; |
Eran Ben Elisha | c8e1da0 | 2019-02-07 11:36:34 +0200 | [diff] [blame] | 4406 | u64 dump_ts; |
| 4407 | u64 error_count; |
| 4408 | u64 recovery_count; |
| 4409 | u64 last_recovery_ts; |
| 4410 | }; |
| 4411 | |
Eran Ben Elisha | a0bdcc5 | 2019-02-07 11:36:33 +0200 | [diff] [blame] | 4412 | void * |
| 4413 | devlink_health_reporter_priv(struct devlink_health_reporter *reporter) |
| 4414 | { |
| 4415 | return reporter->priv; |
| 4416 | } |
| 4417 | EXPORT_SYMBOL_GPL(devlink_health_reporter_priv); |
| 4418 | |
| 4419 | static struct devlink_health_reporter * |
| 4420 | devlink_health_reporter_find_by_name(struct devlink *devlink, |
| 4421 | const char *reporter_name) |
| 4422 | { |
| 4423 | struct devlink_health_reporter *reporter; |
| 4424 | |
| 4425 | list_for_each_entry(reporter, &devlink->reporter_list, list) |
| 4426 | if (!strcmp(reporter->ops->name, reporter_name)) |
| 4427 | return reporter; |
| 4428 | return NULL; |
| 4429 | } |
| 4430 | |
| 4431 | /** |
| 4432 | * devlink_health_reporter_create - create devlink health reporter |
| 4433 | * |
| 4434 | * @devlink: devlink |
| 4435 | * @ops: ops |
| 4436 | * @graceful_period: to avoid recovery loops, in msecs |
| 4437 | * @auto_recover: auto recover when error occurs |
| 4438 | * @priv: priv |
| 4439 | */ |
| 4440 | struct devlink_health_reporter * |
| 4441 | devlink_health_reporter_create(struct devlink *devlink, |
| 4442 | const struct devlink_health_reporter_ops *ops, |
| 4443 | u64 graceful_period, bool auto_recover, |
| 4444 | void *priv) |
| 4445 | { |
| 4446 | struct devlink_health_reporter *reporter; |
| 4447 | |
| 4448 | mutex_lock(&devlink->lock); |
| 4449 | if (devlink_health_reporter_find_by_name(devlink, ops->name)) { |
| 4450 | reporter = ERR_PTR(-EEXIST); |
| 4451 | goto unlock; |
| 4452 | } |
| 4453 | |
| 4454 | if (WARN_ON(auto_recover && !ops->recover) || |
| 4455 | WARN_ON(graceful_period && !ops->recover)) { |
| 4456 | reporter = ERR_PTR(-EINVAL); |
| 4457 | goto unlock; |
| 4458 | } |
| 4459 | |
| 4460 | reporter = kzalloc(sizeof(*reporter), GFP_KERNEL); |
| 4461 | if (!reporter) { |
| 4462 | reporter = ERR_PTR(-ENOMEM); |
| 4463 | goto unlock; |
| 4464 | } |
| 4465 | |
| 4466 | reporter->priv = priv; |
| 4467 | reporter->ops = ops; |
| 4468 | reporter->devlink = devlink; |
| 4469 | reporter->graceful_period = graceful_period; |
| 4470 | reporter->auto_recover = auto_recover; |
Eran Ben Elisha | c8e1da0 | 2019-02-07 11:36:34 +0200 | [diff] [blame] | 4471 | mutex_init(&reporter->dump_lock); |
Eran Ben Elisha | a0bdcc5 | 2019-02-07 11:36:33 +0200 | [diff] [blame] | 4472 | list_add_tail(&reporter->list, &devlink->reporter_list); |
| 4473 | unlock: |
| 4474 | mutex_unlock(&devlink->lock); |
| 4475 | return reporter; |
| 4476 | } |
| 4477 | EXPORT_SYMBOL_GPL(devlink_health_reporter_create); |
| 4478 | |
| 4479 | /** |
| 4480 | * devlink_health_reporter_destroy - destroy devlink health reporter |
| 4481 | * |
| 4482 | * @reporter: devlink health reporter to destroy |
| 4483 | */ |
| 4484 | void |
| 4485 | devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) |
| 4486 | { |
| 4487 | mutex_lock(&reporter->devlink->lock); |
| 4488 | list_del(&reporter->list); |
| 4489 | mutex_unlock(&reporter->devlink->lock); |
Eran Ben Elisha | c8e1da0 | 2019-02-07 11:36:34 +0200 | [diff] [blame] | 4490 | if (reporter->dump_fmsg) |
| 4491 | devlink_fmsg_free(reporter->dump_fmsg); |
Eran Ben Elisha | a0bdcc5 | 2019-02-07 11:36:33 +0200 | [diff] [blame] | 4492 | kfree(reporter); |
| 4493 | } |
| 4494 | EXPORT_SYMBOL_GPL(devlink_health_reporter_destroy); |
| 4495 | |
Eran Ben Elisha | 3167b27 | 2019-03-03 10:57:30 +0200 | [diff] [blame] | 4496 | void |
| 4497 | devlink_health_reporter_state_update(struct devlink_health_reporter *reporter, |
| 4498 | enum devlink_health_reporter_state state) |
| 4499 | { |
| 4500 | if (WARN_ON(state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY && |
| 4501 | state != DEVLINK_HEALTH_REPORTER_STATE_ERROR)) |
| 4502 | return; |
| 4503 | |
| 4504 | if (reporter->health_state == state) |
| 4505 | return; |
| 4506 | |
| 4507 | reporter->health_state = state; |
| 4508 | trace_devlink_health_reporter_state_update(reporter->devlink, |
| 4509 | reporter->ops->name, state); |
| 4510 | } |
| 4511 | EXPORT_SYMBOL_GPL(devlink_health_reporter_state_update); |
| 4512 | |
Eran Ben Elisha | c8e1da0 | 2019-02-07 11:36:34 +0200 | [diff] [blame] | 4513 | static int |
| 4514 | devlink_health_reporter_recover(struct devlink_health_reporter *reporter, |
| 4515 | void *priv_ctx) |
| 4516 | { |
| 4517 | int err; |
| 4518 | |
| 4519 | if (!reporter->ops->recover) |
| 4520 | return -EOPNOTSUPP; |
| 4521 | |
| 4522 | err = reporter->ops->recover(reporter, priv_ctx); |
| 4523 | if (err) |
| 4524 | return err; |
| 4525 | |
| 4526 | reporter->recovery_count++; |
| 4527 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_HEALTHY; |
| 4528 | reporter->last_recovery_ts = jiffies; |
| 4529 | |
| 4530 | return 0; |
| 4531 | } |
| 4532 | |
| 4533 | static void |
| 4534 | devlink_health_dump_clear(struct devlink_health_reporter *reporter) |
| 4535 | { |
| 4536 | if (!reporter->dump_fmsg) |
| 4537 | return; |
| 4538 | devlink_fmsg_free(reporter->dump_fmsg); |
| 4539 | reporter->dump_fmsg = NULL; |
| 4540 | } |
| 4541 | |
| 4542 | static int devlink_health_do_dump(struct devlink_health_reporter *reporter, |
| 4543 | void *priv_ctx) |
| 4544 | { |
| 4545 | int err; |
| 4546 | |
| 4547 | if (!reporter->ops->dump) |
| 4548 | return 0; |
| 4549 | |
| 4550 | if (reporter->dump_fmsg) |
| 4551 | return 0; |
| 4552 | |
| 4553 | reporter->dump_fmsg = devlink_fmsg_alloc(); |
| 4554 | if (!reporter->dump_fmsg) { |
| 4555 | err = -ENOMEM; |
| 4556 | return err; |
| 4557 | } |
| 4558 | |
| 4559 | err = devlink_fmsg_obj_nest_start(reporter->dump_fmsg); |
| 4560 | if (err) |
| 4561 | goto dump_err; |
| 4562 | |
| 4563 | err = reporter->ops->dump(reporter, reporter->dump_fmsg, |
| 4564 | priv_ctx); |
| 4565 | if (err) |
| 4566 | goto dump_err; |
| 4567 | |
| 4568 | err = devlink_fmsg_obj_nest_end(reporter->dump_fmsg); |
| 4569 | if (err) |
| 4570 | goto dump_err; |
| 4571 | |
| 4572 | reporter->dump_ts = jiffies; |
| 4573 | |
| 4574 | return 0; |
| 4575 | |
| 4576 | dump_err: |
| 4577 | devlink_health_dump_clear(reporter); |
| 4578 | return err; |
| 4579 | } |
| 4580 | |
| 4581 | int devlink_health_report(struct devlink_health_reporter *reporter, |
| 4582 | const char *msg, void *priv_ctx) |
| 4583 | { |
Eran Ben Elisha | a0a21ad | 2019-03-03 10:57:29 +0200 | [diff] [blame] | 4584 | enum devlink_health_reporter_state prev_health_state; |
Eran Ben Elisha | c8e1da0 | 2019-02-07 11:36:34 +0200 | [diff] [blame] | 4585 | struct devlink *devlink = reporter->devlink; |
| 4586 | |
| 4587 | /* write a log message of the current error */ |
| 4588 | WARN_ON(!msg); |
| 4589 | trace_devlink_health_report(devlink, reporter->ops->name, msg); |
| 4590 | reporter->error_count++; |
Eran Ben Elisha | a0a21ad | 2019-03-03 10:57:29 +0200 | [diff] [blame] | 4591 | prev_health_state = reporter->health_state; |
| 4592 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; |
Eran Ben Elisha | c8e1da0 | 2019-02-07 11:36:34 +0200 | [diff] [blame] | 4593 | |
| 4594 | /* abort if the previous error wasn't recovered */ |
| 4595 | if (reporter->auto_recover && |
Eran Ben Elisha | a0a21ad | 2019-03-03 10:57:29 +0200 | [diff] [blame] | 4596 | (prev_health_state != DEVLINK_HEALTH_REPORTER_STATE_HEALTHY || |
Eran Ben Elisha | c8e1da0 | 2019-02-07 11:36:34 +0200 | [diff] [blame] | 4597 | jiffies - reporter->last_recovery_ts < |
| 4598 | msecs_to_jiffies(reporter->graceful_period))) { |
| 4599 | trace_devlink_health_recover_aborted(devlink, |
| 4600 | reporter->ops->name, |
| 4601 | reporter->health_state, |
| 4602 | jiffies - |
| 4603 | reporter->last_recovery_ts); |
| 4604 | return -ECANCELED; |
| 4605 | } |
| 4606 | |
| 4607 | reporter->health_state = DEVLINK_HEALTH_REPORTER_STATE_ERROR; |
| 4608 | |
| 4609 | mutex_lock(&reporter->dump_lock); |
| 4610 | /* store current dump of current error, for later analysis */ |
| 4611 | devlink_health_do_dump(reporter, priv_ctx); |
| 4612 | mutex_unlock(&reporter->dump_lock); |
| 4613 | |
| 4614 | if (reporter->auto_recover) |
| 4615 | return devlink_health_reporter_recover(reporter, priv_ctx); |
| 4616 | |
| 4617 | return 0; |
| 4618 | } |
| 4619 | EXPORT_SYMBOL_GPL(devlink_health_report); |
| 4620 | |
Eran Ben Elisha | 7afe335a | 2019-02-07 11:36:35 +0200 | [diff] [blame] | 4621 | static struct devlink_health_reporter * |
| 4622 | devlink_health_reporter_get_from_info(struct devlink *devlink, |
| 4623 | struct genl_info *info) |
| 4624 | { |
| 4625 | char *reporter_name; |
| 4626 | |
| 4627 | if (!info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]) |
| 4628 | return NULL; |
| 4629 | |
| 4630 | reporter_name = |
| 4631 | nla_data(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_NAME]); |
| 4632 | return devlink_health_reporter_find_by_name(devlink, reporter_name); |
| 4633 | } |
| 4634 | |
| 4635 | static int |
| 4636 | devlink_nl_health_reporter_fill(struct sk_buff *msg, |
| 4637 | struct devlink *devlink, |
| 4638 | struct devlink_health_reporter *reporter, |
| 4639 | enum devlink_command cmd, u32 portid, |
| 4640 | u32 seq, int flags) |
| 4641 | { |
| 4642 | struct nlattr *reporter_attr; |
| 4643 | void *hdr; |
| 4644 | |
| 4645 | hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd); |
| 4646 | if (!hdr) |
| 4647 | return -EMSGSIZE; |
| 4648 | |
| 4649 | if (devlink_nl_put_handle(msg, devlink)) |
| 4650 | goto genlmsg_cancel; |
| 4651 | |
| 4652 | reporter_attr = nla_nest_start(msg, DEVLINK_ATTR_HEALTH_REPORTER); |
| 4653 | if (!reporter_attr) |
| 4654 | goto genlmsg_cancel; |
| 4655 | if (nla_put_string(msg, DEVLINK_ATTR_HEALTH_REPORTER_NAME, |
| 4656 | reporter->ops->name)) |
| 4657 | goto reporter_nest_cancel; |
| 4658 | if (nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_STATE, |
| 4659 | reporter->health_state)) |
| 4660 | goto reporter_nest_cancel; |
Aya Levin | 5471952 | 2019-02-21 14:12:01 +0200 | [diff] [blame] | 4661 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_ERR_COUNT, |
Eran Ben Elisha | 7afe335a | 2019-02-07 11:36:35 +0200 | [diff] [blame] | 4662 | reporter->error_count, DEVLINK_ATTR_PAD)) |
| 4663 | goto reporter_nest_cancel; |
Aya Levin | 5471952 | 2019-02-21 14:12:01 +0200 | [diff] [blame] | 4664 | if (nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_RECOVER_COUNT, |
Eran Ben Elisha | 7afe335a | 2019-02-07 11:36:35 +0200 | [diff] [blame] | 4665 | reporter->recovery_count, DEVLINK_ATTR_PAD)) |
| 4666 | goto reporter_nest_cancel; |
Aya Levin | 574b1e1 | 2019-02-21 14:12:02 +0200 | [diff] [blame] | 4667 | if (reporter->ops->recover && |
| 4668 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD, |
Eran Ben Elisha | 7afe335a | 2019-02-07 11:36:35 +0200 | [diff] [blame] | 4669 | reporter->graceful_period, |
| 4670 | DEVLINK_ATTR_PAD)) |
| 4671 | goto reporter_nest_cancel; |
Aya Levin | 574b1e1 | 2019-02-21 14:12:02 +0200 | [diff] [blame] | 4672 | if (reporter->ops->recover && |
| 4673 | nla_put_u8(msg, DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER, |
Eran Ben Elisha | 7afe335a | 2019-02-07 11:36:35 +0200 | [diff] [blame] | 4674 | reporter->auto_recover)) |
| 4675 | goto reporter_nest_cancel; |
| 4676 | if (reporter->dump_fmsg && |
| 4677 | nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS, |
| 4678 | jiffies_to_msecs(reporter->dump_ts), |
| 4679 | DEVLINK_ATTR_PAD)) |
| 4680 | goto reporter_nest_cancel; |
| 4681 | |
| 4682 | nla_nest_end(msg, reporter_attr); |
| 4683 | genlmsg_end(msg, hdr); |
| 4684 | return 0; |
| 4685 | |
| 4686 | reporter_nest_cancel: |
| 4687 | nla_nest_end(msg, reporter_attr); |
| 4688 | genlmsg_cancel: |
| 4689 | genlmsg_cancel(msg, hdr); |
| 4690 | return -EMSGSIZE; |
| 4691 | } |
| 4692 | |
| 4693 | static int devlink_nl_cmd_health_reporter_get_doit(struct sk_buff *skb, |
| 4694 | struct genl_info *info) |
| 4695 | { |
| 4696 | struct devlink *devlink = info->user_ptr[0]; |
| 4697 | struct devlink_health_reporter *reporter; |
| 4698 | struct sk_buff *msg; |
| 4699 | int err; |
| 4700 | |
| 4701 | reporter = devlink_health_reporter_get_from_info(devlink, info); |
| 4702 | if (!reporter) |
| 4703 | return -EINVAL; |
| 4704 | |
| 4705 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 4706 | if (!msg) |
| 4707 | return -ENOMEM; |
| 4708 | |
| 4709 | err = devlink_nl_health_reporter_fill(msg, devlink, reporter, |
| 4710 | DEVLINK_CMD_HEALTH_REPORTER_GET, |
| 4711 | info->snd_portid, info->snd_seq, |
| 4712 | 0); |
| 4713 | if (err) { |
| 4714 | nlmsg_free(msg); |
| 4715 | return err; |
| 4716 | } |
| 4717 | |
| 4718 | return genlmsg_reply(msg, info); |
| 4719 | } |
| 4720 | |
| 4721 | static int |
| 4722 | devlink_nl_cmd_health_reporter_get_dumpit(struct sk_buff *msg, |
| 4723 | struct netlink_callback *cb) |
| 4724 | { |
| 4725 | struct devlink_health_reporter *reporter; |
| 4726 | struct devlink *devlink; |
| 4727 | int start = cb->args[0]; |
| 4728 | int idx = 0; |
| 4729 | int err; |
| 4730 | |
| 4731 | mutex_lock(&devlink_mutex); |
| 4732 | list_for_each_entry(devlink, &devlink_list, list) { |
| 4733 | if (!net_eq(devlink_net(devlink), sock_net(msg->sk))) |
| 4734 | continue; |
| 4735 | mutex_lock(&devlink->lock); |
| 4736 | list_for_each_entry(reporter, &devlink->reporter_list, |
| 4737 | list) { |
| 4738 | if (idx < start) { |
| 4739 | idx++; |
| 4740 | continue; |
| 4741 | } |
| 4742 | err = devlink_nl_health_reporter_fill(msg, devlink, |
| 4743 | reporter, |
| 4744 | DEVLINK_CMD_HEALTH_REPORTER_GET, |
| 4745 | NETLINK_CB(cb->skb).portid, |
| 4746 | cb->nlh->nlmsg_seq, |
| 4747 | NLM_F_MULTI); |
| 4748 | if (err) { |
| 4749 | mutex_unlock(&devlink->lock); |
| 4750 | goto out; |
| 4751 | } |
| 4752 | idx++; |
| 4753 | } |
| 4754 | mutex_unlock(&devlink->lock); |
| 4755 | } |
| 4756 | out: |
| 4757 | mutex_unlock(&devlink_mutex); |
| 4758 | |
| 4759 | cb->args[0] = idx; |
| 4760 | return msg->len; |
| 4761 | } |
| 4762 | |
Eran Ben Elisha | a1e55ec | 2019-02-07 11:36:36 +0200 | [diff] [blame] | 4763 | static int |
| 4764 | devlink_nl_cmd_health_reporter_set_doit(struct sk_buff *skb, |
| 4765 | struct genl_info *info) |
| 4766 | { |
| 4767 | struct devlink *devlink = info->user_ptr[0]; |
| 4768 | struct devlink_health_reporter *reporter; |
| 4769 | |
| 4770 | reporter = devlink_health_reporter_get_from_info(devlink, info); |
| 4771 | if (!reporter) |
| 4772 | return -EINVAL; |
| 4773 | |
| 4774 | if (!reporter->ops->recover && |
| 4775 | (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] || |
| 4776 | info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER])) |
| 4777 | return -EOPNOTSUPP; |
| 4778 | |
| 4779 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]) |
| 4780 | reporter->graceful_period = |
| 4781 | nla_get_u64(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD]); |
| 4782 | |
| 4783 | if (info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]) |
| 4784 | reporter->auto_recover = |
| 4785 | nla_get_u8(info->attrs[DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER]); |
| 4786 | |
| 4787 | return 0; |
| 4788 | } |
| 4789 | |
Eran Ben Elisha | 20a0943 | 2019-02-07 11:36:37 +0200 | [diff] [blame] | 4790 | static int devlink_nl_cmd_health_reporter_recover_doit(struct sk_buff *skb, |
| 4791 | struct genl_info *info) |
| 4792 | { |
| 4793 | struct devlink *devlink = info->user_ptr[0]; |
| 4794 | struct devlink_health_reporter *reporter; |
| 4795 | |
| 4796 | reporter = devlink_health_reporter_get_from_info(devlink, info); |
| 4797 | if (!reporter) |
| 4798 | return -EINVAL; |
| 4799 | |
| 4800 | return devlink_health_reporter_recover(reporter, NULL); |
| 4801 | } |
| 4802 | |
Eran Ben Elisha | fca42a2 | 2019-02-07 11:36:38 +0200 | [diff] [blame] | 4803 | static int devlink_nl_cmd_health_reporter_diagnose_doit(struct sk_buff *skb, |
| 4804 | struct genl_info *info) |
| 4805 | { |
| 4806 | struct devlink *devlink = info->user_ptr[0]; |
| 4807 | struct devlink_health_reporter *reporter; |
| 4808 | struct devlink_fmsg *fmsg; |
| 4809 | int err; |
| 4810 | |
| 4811 | reporter = devlink_health_reporter_get_from_info(devlink, info); |
| 4812 | if (!reporter) |
| 4813 | return -EINVAL; |
| 4814 | |
| 4815 | if (!reporter->ops->diagnose) |
| 4816 | return -EOPNOTSUPP; |
| 4817 | |
| 4818 | fmsg = devlink_fmsg_alloc(); |
| 4819 | if (!fmsg) |
| 4820 | return -ENOMEM; |
| 4821 | |
| 4822 | err = devlink_fmsg_obj_nest_start(fmsg); |
| 4823 | if (err) |
| 4824 | goto out; |
| 4825 | |
| 4826 | err = reporter->ops->diagnose(reporter, fmsg); |
| 4827 | if (err) |
| 4828 | goto out; |
| 4829 | |
| 4830 | err = devlink_fmsg_obj_nest_end(fmsg); |
| 4831 | if (err) |
| 4832 | goto out; |
| 4833 | |
| 4834 | err = devlink_fmsg_snd(fmsg, info, |
| 4835 | DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, 0); |
| 4836 | |
| 4837 | out: |
| 4838 | devlink_fmsg_free(fmsg); |
| 4839 | return err; |
| 4840 | } |
| 4841 | |
Eran Ben Elisha | 35455e2 | 2019-02-07 11:36:39 +0200 | [diff] [blame] | 4842 | static int devlink_nl_cmd_health_reporter_dump_get_doit(struct sk_buff *skb, |
| 4843 | struct genl_info *info) |
| 4844 | { |
| 4845 | struct devlink *devlink = info->user_ptr[0]; |
| 4846 | struct devlink_health_reporter *reporter; |
| 4847 | int err; |
| 4848 | |
| 4849 | reporter = devlink_health_reporter_get_from_info(devlink, info); |
| 4850 | if (!reporter) |
| 4851 | return -EINVAL; |
| 4852 | |
| 4853 | if (!reporter->ops->dump) |
| 4854 | return -EOPNOTSUPP; |
| 4855 | |
| 4856 | mutex_lock(&reporter->dump_lock); |
| 4857 | err = devlink_health_do_dump(reporter, NULL); |
| 4858 | if (err) |
| 4859 | goto out; |
| 4860 | |
| 4861 | err = devlink_fmsg_snd(reporter->dump_fmsg, info, |
| 4862 | DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET, 0); |
| 4863 | |
| 4864 | out: |
| 4865 | mutex_unlock(&reporter->dump_lock); |
| 4866 | return err; |
| 4867 | } |
| 4868 | |
| 4869 | static int |
| 4870 | devlink_nl_cmd_health_reporter_dump_clear_doit(struct sk_buff *skb, |
| 4871 | struct genl_info *info) |
| 4872 | { |
| 4873 | struct devlink *devlink = info->user_ptr[0]; |
| 4874 | struct devlink_health_reporter *reporter; |
| 4875 | |
| 4876 | reporter = devlink_health_reporter_get_from_info(devlink, info); |
| 4877 | if (!reporter) |
| 4878 | return -EINVAL; |
| 4879 | |
| 4880 | if (!reporter->ops->dump) |
| 4881 | return -EOPNOTSUPP; |
| 4882 | |
| 4883 | mutex_lock(&reporter->dump_lock); |
| 4884 | devlink_health_dump_clear(reporter); |
| 4885 | mutex_unlock(&reporter->dump_lock); |
| 4886 | return 0; |
| 4887 | } |
| 4888 | |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 4889 | static const struct nla_policy devlink_nl_policy[DEVLINK_ATTR_MAX + 1] = { |
| 4890 | [DEVLINK_ATTR_BUS_NAME] = { .type = NLA_NUL_STRING }, |
| 4891 | [DEVLINK_ATTR_DEV_NAME] = { .type = NLA_NUL_STRING }, |
| 4892 | [DEVLINK_ATTR_PORT_INDEX] = { .type = NLA_U32 }, |
| 4893 | [DEVLINK_ATTR_PORT_TYPE] = { .type = NLA_U16 }, |
| 4894 | [DEVLINK_ATTR_PORT_SPLIT_COUNT] = { .type = NLA_U32 }, |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 4895 | [DEVLINK_ATTR_SB_INDEX] = { .type = NLA_U32 }, |
| 4896 | [DEVLINK_ATTR_SB_POOL_INDEX] = { .type = NLA_U16 }, |
| 4897 | [DEVLINK_ATTR_SB_POOL_TYPE] = { .type = NLA_U8 }, |
| 4898 | [DEVLINK_ATTR_SB_POOL_SIZE] = { .type = NLA_U32 }, |
| 4899 | [DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE] = { .type = NLA_U8 }, |
| 4900 | [DEVLINK_ATTR_SB_THRESHOLD] = { .type = NLA_U32 }, |
| 4901 | [DEVLINK_ATTR_SB_TC_INDEX] = { .type = NLA_U16 }, |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 4902 | [DEVLINK_ATTR_ESWITCH_MODE] = { .type = NLA_U16 }, |
Roi Dayan | 59bfde0 | 2016-11-22 23:09:57 +0200 | [diff] [blame] | 4903 | [DEVLINK_ATTR_ESWITCH_INLINE_MODE] = { .type = NLA_U8 }, |
Roi Dayan | f43e9b0 | 2016-09-25 13:52:44 +0300 | [diff] [blame] | 4904 | [DEVLINK_ATTR_ESWITCH_ENCAP_MODE] = { .type = NLA_U8 }, |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 4905 | [DEVLINK_ATTR_DPIPE_TABLE_NAME] = { .type = NLA_NUL_STRING }, |
| 4906 | [DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED] = { .type = NLA_U8 }, |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 4907 | [DEVLINK_ATTR_RESOURCE_ID] = { .type = NLA_U64}, |
| 4908 | [DEVLINK_ATTR_RESOURCE_SIZE] = { .type = NLA_U64}, |
Moshe Shemesh | e3b7ca1 | 2018-07-04 14:30:30 +0300 | [diff] [blame] | 4909 | [DEVLINK_ATTR_PARAM_NAME] = { .type = NLA_NUL_STRING }, |
| 4910 | [DEVLINK_ATTR_PARAM_TYPE] = { .type = NLA_U8 }, |
| 4911 | [DEVLINK_ATTR_PARAM_VALUE_CMODE] = { .type = NLA_U8 }, |
Alex Vesker | d8db7ea5 | 2018-07-12 15:13:11 +0300 | [diff] [blame] | 4912 | [DEVLINK_ATTR_REGION_NAME] = { .type = NLA_NUL_STRING }, |
Alex Vesker | 866319b | 2018-07-12 15:13:13 +0300 | [diff] [blame] | 4913 | [DEVLINK_ATTR_REGION_SNAPSHOT_ID] = { .type = NLA_U32 }, |
Eran Ben Elisha | 7afe335a | 2019-02-07 11:36:35 +0200 | [diff] [blame] | 4914 | [DEVLINK_ATTR_HEALTH_REPORTER_NAME] = { .type = NLA_NUL_STRING }, |
Eran Ben Elisha | a1e55ec | 2019-02-07 11:36:36 +0200 | [diff] [blame] | 4915 | [DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD] = { .type = NLA_U64 }, |
| 4916 | [DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER] = { .type = NLA_U8 }, |
Jakub Kicinski | 76726cc | 2019-02-14 13:40:44 -0800 | [diff] [blame] | 4917 | [DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME] = { .type = NLA_NUL_STRING }, |
| 4918 | [DEVLINK_ATTR_FLASH_UPDATE_COMPONENT] = { .type = NLA_NUL_STRING }, |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 4919 | }; |
| 4920 | |
| 4921 | static const struct genl_ops devlink_nl_ops[] = { |
| 4922 | { |
| 4923 | .cmd = DEVLINK_CMD_GET, |
| 4924 | .doit = devlink_nl_cmd_get_doit, |
| 4925 | .dumpit = devlink_nl_cmd_get_dumpit, |
| 4926 | .policy = devlink_nl_policy, |
Jiri Pirko | 1fc2257e | 2016-04-08 19:12:48 +0200 | [diff] [blame] | 4927 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 4928 | /* can be retrieved by unprivileged users */ |
| 4929 | }, |
| 4930 | { |
| 4931 | .cmd = DEVLINK_CMD_PORT_GET, |
| 4932 | .doit = devlink_nl_cmd_port_get_doit, |
| 4933 | .dumpit = devlink_nl_cmd_port_get_dumpit, |
| 4934 | .policy = devlink_nl_policy, |
| 4935 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
| 4936 | /* can be retrieved by unprivileged users */ |
| 4937 | }, |
| 4938 | { |
| 4939 | .cmd = DEVLINK_CMD_PORT_SET, |
| 4940 | .doit = devlink_nl_cmd_port_set_doit, |
| 4941 | .policy = devlink_nl_policy, |
| 4942 | .flags = GENL_ADMIN_PERM, |
| 4943 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
| 4944 | }, |
| 4945 | { |
| 4946 | .cmd = DEVLINK_CMD_PORT_SPLIT, |
| 4947 | .doit = devlink_nl_cmd_port_split_doit, |
| 4948 | .policy = devlink_nl_policy, |
| 4949 | .flags = GENL_ADMIN_PERM, |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 4950 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
| 4951 | DEVLINK_NL_FLAG_NO_LOCK, |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 4952 | }, |
| 4953 | { |
| 4954 | .cmd = DEVLINK_CMD_PORT_UNSPLIT, |
| 4955 | .doit = devlink_nl_cmd_port_unsplit_doit, |
| 4956 | .policy = devlink_nl_policy, |
| 4957 | .flags = GENL_ADMIN_PERM, |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 4958 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
| 4959 | DEVLINK_NL_FLAG_NO_LOCK, |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 4960 | }, |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 4961 | { |
| 4962 | .cmd = DEVLINK_CMD_SB_GET, |
| 4963 | .doit = devlink_nl_cmd_sb_get_doit, |
| 4964 | .dumpit = devlink_nl_cmd_sb_get_dumpit, |
| 4965 | .policy = devlink_nl_policy, |
| 4966 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
| 4967 | DEVLINK_NL_FLAG_NEED_SB, |
| 4968 | /* can be retrieved by unprivileged users */ |
| 4969 | }, |
| 4970 | { |
| 4971 | .cmd = DEVLINK_CMD_SB_POOL_GET, |
| 4972 | .doit = devlink_nl_cmd_sb_pool_get_doit, |
| 4973 | .dumpit = devlink_nl_cmd_sb_pool_get_dumpit, |
| 4974 | .policy = devlink_nl_policy, |
| 4975 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
| 4976 | DEVLINK_NL_FLAG_NEED_SB, |
| 4977 | /* can be retrieved by unprivileged users */ |
| 4978 | }, |
| 4979 | { |
| 4980 | .cmd = DEVLINK_CMD_SB_POOL_SET, |
| 4981 | .doit = devlink_nl_cmd_sb_pool_set_doit, |
| 4982 | .policy = devlink_nl_policy, |
| 4983 | .flags = GENL_ADMIN_PERM, |
| 4984 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
| 4985 | DEVLINK_NL_FLAG_NEED_SB, |
| 4986 | }, |
| 4987 | { |
| 4988 | .cmd = DEVLINK_CMD_SB_PORT_POOL_GET, |
| 4989 | .doit = devlink_nl_cmd_sb_port_pool_get_doit, |
| 4990 | .dumpit = devlink_nl_cmd_sb_port_pool_get_dumpit, |
| 4991 | .policy = devlink_nl_policy, |
| 4992 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | |
| 4993 | DEVLINK_NL_FLAG_NEED_SB, |
| 4994 | /* can be retrieved by unprivileged users */ |
| 4995 | }, |
| 4996 | { |
| 4997 | .cmd = DEVLINK_CMD_SB_PORT_POOL_SET, |
| 4998 | .doit = devlink_nl_cmd_sb_port_pool_set_doit, |
| 4999 | .policy = devlink_nl_policy, |
| 5000 | .flags = GENL_ADMIN_PERM, |
| 5001 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | |
| 5002 | DEVLINK_NL_FLAG_NEED_SB, |
| 5003 | }, |
| 5004 | { |
| 5005 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_GET, |
| 5006 | .doit = devlink_nl_cmd_sb_tc_pool_bind_get_doit, |
| 5007 | .dumpit = devlink_nl_cmd_sb_tc_pool_bind_get_dumpit, |
| 5008 | .policy = devlink_nl_policy, |
| 5009 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | |
| 5010 | DEVLINK_NL_FLAG_NEED_SB, |
| 5011 | /* can be retrieved by unprivileged users */ |
| 5012 | }, |
| 5013 | { |
| 5014 | .cmd = DEVLINK_CMD_SB_TC_POOL_BIND_SET, |
| 5015 | .doit = devlink_nl_cmd_sb_tc_pool_bind_set_doit, |
| 5016 | .policy = devlink_nl_policy, |
| 5017 | .flags = GENL_ADMIN_PERM, |
| 5018 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT | |
| 5019 | DEVLINK_NL_FLAG_NEED_SB, |
| 5020 | }, |
Jiri Pirko | df38daf | 2016-04-14 18:19:14 +0200 | [diff] [blame] | 5021 | { |
| 5022 | .cmd = DEVLINK_CMD_SB_OCC_SNAPSHOT, |
| 5023 | .doit = devlink_nl_cmd_sb_occ_snapshot_doit, |
| 5024 | .policy = devlink_nl_policy, |
| 5025 | .flags = GENL_ADMIN_PERM, |
| 5026 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5027 | DEVLINK_NL_FLAG_NEED_SB, |
Jiri Pirko | df38daf | 2016-04-14 18:19:14 +0200 | [diff] [blame] | 5028 | }, |
| 5029 | { |
| 5030 | .cmd = DEVLINK_CMD_SB_OCC_MAX_CLEAR, |
| 5031 | .doit = devlink_nl_cmd_sb_occ_max_clear_doit, |
| 5032 | .policy = devlink_nl_policy, |
| 5033 | .flags = GENL_ADMIN_PERM, |
| 5034 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5035 | DEVLINK_NL_FLAG_NEED_SB, |
Jiri Pirko | df38daf | 2016-04-14 18:19:14 +0200 | [diff] [blame] | 5036 | }, |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 5037 | { |
Jiri Pirko | adf200f | 2017-02-09 15:54:33 +0100 | [diff] [blame] | 5038 | .cmd = DEVLINK_CMD_ESWITCH_GET, |
| 5039 | .doit = devlink_nl_cmd_eswitch_get_doit, |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 5040 | .policy = devlink_nl_policy, |
| 5041 | .flags = GENL_ADMIN_PERM, |
| 5042 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
| 5043 | }, |
| 5044 | { |
Jiri Pirko | adf200f | 2017-02-09 15:54:33 +0100 | [diff] [blame] | 5045 | .cmd = DEVLINK_CMD_ESWITCH_SET, |
| 5046 | .doit = devlink_nl_cmd_eswitch_set_doit, |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 5047 | .policy = devlink_nl_policy, |
| 5048 | .flags = GENL_ADMIN_PERM, |
Jakub Kicinski | 7ac1cc9 | 2018-05-21 22:12:50 -0700 | [diff] [blame] | 5049 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
| 5050 | DEVLINK_NL_FLAG_NO_LOCK, |
Or Gerlitz | 08f4b59 | 2016-07-01 14:51:01 +0300 | [diff] [blame] | 5051 | }, |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5052 | { |
| 5053 | .cmd = DEVLINK_CMD_DPIPE_TABLE_GET, |
| 5054 | .doit = devlink_nl_cmd_dpipe_table_get, |
| 5055 | .policy = devlink_nl_policy, |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5056 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
Arkadi Sharshevsky | 67ae686 | 2018-03-08 12:52:25 +0200 | [diff] [blame] | 5057 | /* can be retrieved by unprivileged users */ |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5058 | }, |
| 5059 | { |
| 5060 | .cmd = DEVLINK_CMD_DPIPE_ENTRIES_GET, |
| 5061 | .doit = devlink_nl_cmd_dpipe_entries_get, |
| 5062 | .policy = devlink_nl_policy, |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5063 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
Arkadi Sharshevsky | 67ae686 | 2018-03-08 12:52:25 +0200 | [diff] [blame] | 5064 | /* can be retrieved by unprivileged users */ |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5065 | }, |
| 5066 | { |
| 5067 | .cmd = DEVLINK_CMD_DPIPE_HEADERS_GET, |
| 5068 | .doit = devlink_nl_cmd_dpipe_headers_get, |
| 5069 | .policy = devlink_nl_policy, |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5070 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
Arkadi Sharshevsky | 67ae686 | 2018-03-08 12:52:25 +0200 | [diff] [blame] | 5071 | /* can be retrieved by unprivileged users */ |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5072 | }, |
| 5073 | { |
| 5074 | .cmd = DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET, |
| 5075 | .doit = devlink_nl_cmd_dpipe_table_counters_set, |
| 5076 | .policy = devlink_nl_policy, |
| 5077 | .flags = GENL_ADMIN_PERM, |
| 5078 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
| 5079 | }, |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 5080 | { |
| 5081 | .cmd = DEVLINK_CMD_RESOURCE_SET, |
| 5082 | .doit = devlink_nl_cmd_resource_set, |
| 5083 | .policy = devlink_nl_policy, |
| 5084 | .flags = GENL_ADMIN_PERM, |
| 5085 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
| 5086 | }, |
| 5087 | { |
| 5088 | .cmd = DEVLINK_CMD_RESOURCE_DUMP, |
| 5089 | .doit = devlink_nl_cmd_resource_dump, |
| 5090 | .policy = devlink_nl_policy, |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 5091 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
Arkadi Sharshevsky | 67ae686 | 2018-03-08 12:52:25 +0200 | [diff] [blame] | 5092 | /* can be retrieved by unprivileged users */ |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 5093 | }, |
Arkadi Sharshevsky | 2d8dc5b | 2018-01-15 08:59:04 +0100 | [diff] [blame] | 5094 | { |
| 5095 | .cmd = DEVLINK_CMD_RELOAD, |
| 5096 | .doit = devlink_nl_cmd_reload, |
| 5097 | .policy = devlink_nl_policy, |
| 5098 | .flags = GENL_ADMIN_PERM, |
| 5099 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
| 5100 | DEVLINK_NL_FLAG_NO_LOCK, |
| 5101 | }, |
Moshe Shemesh | 45f05de | 2018-07-04 14:30:29 +0300 | [diff] [blame] | 5102 | { |
| 5103 | .cmd = DEVLINK_CMD_PARAM_GET, |
| 5104 | .doit = devlink_nl_cmd_param_get_doit, |
| 5105 | .dumpit = devlink_nl_cmd_param_get_dumpit, |
| 5106 | .policy = devlink_nl_policy, |
| 5107 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
| 5108 | /* can be retrieved by unprivileged users */ |
| 5109 | }, |
Moshe Shemesh | e3b7ca1 | 2018-07-04 14:30:30 +0300 | [diff] [blame] | 5110 | { |
| 5111 | .cmd = DEVLINK_CMD_PARAM_SET, |
| 5112 | .doit = devlink_nl_cmd_param_set_doit, |
| 5113 | .policy = devlink_nl_policy, |
| 5114 | .flags = GENL_ADMIN_PERM, |
| 5115 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
| 5116 | }, |
Alex Vesker | d8db7ea5 | 2018-07-12 15:13:11 +0300 | [diff] [blame] | 5117 | { |
Vasundhara Volam | f4601de | 2019-01-28 18:00:21 +0530 | [diff] [blame] | 5118 | .cmd = DEVLINK_CMD_PORT_PARAM_GET, |
| 5119 | .doit = devlink_nl_cmd_port_param_get_doit, |
| 5120 | .dumpit = devlink_nl_cmd_port_param_get_dumpit, |
| 5121 | .policy = devlink_nl_policy, |
| 5122 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
| 5123 | /* can be retrieved by unprivileged users */ |
| 5124 | }, |
| 5125 | { |
Vasundhara Volam | 9c54873 | 2019-01-28 18:00:22 +0530 | [diff] [blame] | 5126 | .cmd = DEVLINK_CMD_PORT_PARAM_SET, |
| 5127 | .doit = devlink_nl_cmd_port_param_set_doit, |
| 5128 | .policy = devlink_nl_policy, |
| 5129 | .flags = GENL_ADMIN_PERM, |
| 5130 | .internal_flags = DEVLINK_NL_FLAG_NEED_PORT, |
| 5131 | }, |
| 5132 | { |
Alex Vesker | d8db7ea5 | 2018-07-12 15:13:11 +0300 | [diff] [blame] | 5133 | .cmd = DEVLINK_CMD_REGION_GET, |
| 5134 | .doit = devlink_nl_cmd_region_get_doit, |
| 5135 | .dumpit = devlink_nl_cmd_region_get_dumpit, |
| 5136 | .policy = devlink_nl_policy, |
| 5137 | .flags = GENL_ADMIN_PERM, |
| 5138 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
| 5139 | }, |
Alex Vesker | 866319b | 2018-07-12 15:13:13 +0300 | [diff] [blame] | 5140 | { |
| 5141 | .cmd = DEVLINK_CMD_REGION_DEL, |
| 5142 | .doit = devlink_nl_cmd_region_del, |
| 5143 | .policy = devlink_nl_policy, |
| 5144 | .flags = GENL_ADMIN_PERM, |
| 5145 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
| 5146 | }, |
Alex Vesker | 4e54795 | 2018-07-12 15:13:14 +0300 | [diff] [blame] | 5147 | { |
| 5148 | .cmd = DEVLINK_CMD_REGION_READ, |
| 5149 | .dumpit = devlink_nl_cmd_region_read_dumpit, |
| 5150 | .policy = devlink_nl_policy, |
| 5151 | .flags = GENL_ADMIN_PERM, |
| 5152 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
| 5153 | }, |
Jakub Kicinski | f9cf228 | 2019-01-31 10:50:40 -0800 | [diff] [blame] | 5154 | { |
| 5155 | .cmd = DEVLINK_CMD_INFO_GET, |
| 5156 | .doit = devlink_nl_cmd_info_get_doit, |
| 5157 | .dumpit = devlink_nl_cmd_info_get_dumpit, |
| 5158 | .policy = devlink_nl_policy, |
| 5159 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
| 5160 | /* can be retrieved by unprivileged users */ |
| 5161 | }, |
Eran Ben Elisha | 7afe335a | 2019-02-07 11:36:35 +0200 | [diff] [blame] | 5162 | { |
| 5163 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_GET, |
| 5164 | .doit = devlink_nl_cmd_health_reporter_get_doit, |
| 5165 | .dumpit = devlink_nl_cmd_health_reporter_get_dumpit, |
| 5166 | .policy = devlink_nl_policy, |
| 5167 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
| 5168 | /* can be retrieved by unprivileged users */ |
| 5169 | }, |
Eran Ben Elisha | a1e55ec | 2019-02-07 11:36:36 +0200 | [diff] [blame] | 5170 | { |
| 5171 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_SET, |
| 5172 | .doit = devlink_nl_cmd_health_reporter_set_doit, |
| 5173 | .policy = devlink_nl_policy, |
| 5174 | .flags = GENL_ADMIN_PERM, |
| 5175 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
| 5176 | }, |
Eran Ben Elisha | 20a0943 | 2019-02-07 11:36:37 +0200 | [diff] [blame] | 5177 | { |
| 5178 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_RECOVER, |
| 5179 | .doit = devlink_nl_cmd_health_reporter_recover_doit, |
| 5180 | .policy = devlink_nl_policy, |
| 5181 | .flags = GENL_ADMIN_PERM, |
| 5182 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
| 5183 | }, |
Eran Ben Elisha | fca42a2 | 2019-02-07 11:36:38 +0200 | [diff] [blame] | 5184 | { |
| 5185 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE, |
| 5186 | .doit = devlink_nl_cmd_health_reporter_diagnose_doit, |
| 5187 | .policy = devlink_nl_policy, |
| 5188 | .flags = GENL_ADMIN_PERM, |
| 5189 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
| 5190 | }, |
Eran Ben Elisha | 35455e2 | 2019-02-07 11:36:39 +0200 | [diff] [blame] | 5191 | { |
| 5192 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET, |
| 5193 | .doit = devlink_nl_cmd_health_reporter_dump_get_doit, |
| 5194 | .policy = devlink_nl_policy, |
| 5195 | .flags = GENL_ADMIN_PERM, |
| 5196 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
| 5197 | DEVLINK_NL_FLAG_NO_LOCK, |
| 5198 | }, |
| 5199 | { |
| 5200 | .cmd = DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR, |
| 5201 | .doit = devlink_nl_cmd_health_reporter_dump_clear_doit, |
| 5202 | .policy = devlink_nl_policy, |
| 5203 | .flags = GENL_ADMIN_PERM, |
| 5204 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK | |
| 5205 | DEVLINK_NL_FLAG_NO_LOCK, |
| 5206 | }, |
Jakub Kicinski | 76726cc | 2019-02-14 13:40:44 -0800 | [diff] [blame] | 5207 | { |
| 5208 | .cmd = DEVLINK_CMD_FLASH_UPDATE, |
| 5209 | .doit = devlink_nl_cmd_flash_update, |
| 5210 | .policy = devlink_nl_policy, |
| 5211 | .flags = GENL_ADMIN_PERM, |
| 5212 | .internal_flags = DEVLINK_NL_FLAG_NEED_DEVLINK, |
| 5213 | }, |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5214 | }; |
| 5215 | |
Johannes Berg | 56989f6 | 2016-10-24 14:40:05 +0200 | [diff] [blame] | 5216 | static struct genl_family devlink_nl_family __ro_after_init = { |
Johannes Berg | 489111e | 2016-10-24 14:40:03 +0200 | [diff] [blame] | 5217 | .name = DEVLINK_GENL_NAME, |
| 5218 | .version = DEVLINK_GENL_VERSION, |
| 5219 | .maxattr = DEVLINK_ATTR_MAX, |
| 5220 | .netnsok = true, |
| 5221 | .pre_doit = devlink_nl_pre_doit, |
| 5222 | .post_doit = devlink_nl_post_doit, |
| 5223 | .module = THIS_MODULE, |
| 5224 | .ops = devlink_nl_ops, |
| 5225 | .n_ops = ARRAY_SIZE(devlink_nl_ops), |
| 5226 | .mcgrps = devlink_nl_mcgrps, |
| 5227 | .n_mcgrps = ARRAY_SIZE(devlink_nl_mcgrps), |
| 5228 | }; |
| 5229 | |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5230 | /** |
| 5231 | * devlink_alloc - Allocate new devlink instance resources |
| 5232 | * |
| 5233 | * @ops: ops |
| 5234 | * @priv_size: size of user private data |
| 5235 | * |
| 5236 | * Allocate new devlink instance resources, including devlink index |
| 5237 | * and name. |
| 5238 | */ |
| 5239 | struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size) |
| 5240 | { |
| 5241 | struct devlink *devlink; |
| 5242 | |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 5243 | if (WARN_ON(!ops)) |
| 5244 | return NULL; |
| 5245 | |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5246 | devlink = kzalloc(sizeof(*devlink) + priv_size, GFP_KERNEL); |
| 5247 | if (!devlink) |
| 5248 | return NULL; |
| 5249 | devlink->ops = ops; |
| 5250 | devlink_net_set(devlink, &init_net); |
| 5251 | INIT_LIST_HEAD(&devlink->port_list); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 5252 | INIT_LIST_HEAD(&devlink->sb_list); |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5253 | INIT_LIST_HEAD_RCU(&devlink->dpipe_table_list); |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 5254 | INIT_LIST_HEAD(&devlink->resource_list); |
Moshe Shemesh | eabaef1 | 2018-07-04 14:30:28 +0300 | [diff] [blame] | 5255 | INIT_LIST_HEAD(&devlink->param_list); |
Alex Vesker | b16ebe9 | 2018-07-12 15:13:08 +0300 | [diff] [blame] | 5256 | INIT_LIST_HEAD(&devlink->region_list); |
Eran Ben Elisha | a0bdcc5 | 2019-02-07 11:36:33 +0200 | [diff] [blame] | 5257 | INIT_LIST_HEAD(&devlink->reporter_list); |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5258 | mutex_init(&devlink->lock); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5259 | return devlink; |
| 5260 | } |
| 5261 | EXPORT_SYMBOL_GPL(devlink_alloc); |
| 5262 | |
| 5263 | /** |
| 5264 | * devlink_register - Register devlink instance |
| 5265 | * |
| 5266 | * @devlink: devlink |
Jakub Kicinski | eeaadd8 | 2019-02-27 11:36:36 -0800 | [diff] [blame] | 5267 | * @dev: parent device |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5268 | */ |
| 5269 | int devlink_register(struct devlink *devlink, struct device *dev) |
| 5270 | { |
| 5271 | mutex_lock(&devlink_mutex); |
| 5272 | devlink->dev = dev; |
| 5273 | list_add_tail(&devlink->list, &devlink_list); |
| 5274 | devlink_notify(devlink, DEVLINK_CMD_NEW); |
| 5275 | mutex_unlock(&devlink_mutex); |
| 5276 | return 0; |
| 5277 | } |
| 5278 | EXPORT_SYMBOL_GPL(devlink_register); |
| 5279 | |
| 5280 | /** |
| 5281 | * devlink_unregister - Unregister devlink instance |
| 5282 | * |
| 5283 | * @devlink: devlink |
| 5284 | */ |
| 5285 | void devlink_unregister(struct devlink *devlink) |
| 5286 | { |
| 5287 | mutex_lock(&devlink_mutex); |
| 5288 | devlink_notify(devlink, DEVLINK_CMD_DEL); |
| 5289 | list_del(&devlink->list); |
| 5290 | mutex_unlock(&devlink_mutex); |
| 5291 | } |
| 5292 | EXPORT_SYMBOL_GPL(devlink_unregister); |
| 5293 | |
| 5294 | /** |
| 5295 | * devlink_free - Free devlink instance resources |
| 5296 | * |
| 5297 | * @devlink: devlink |
| 5298 | */ |
| 5299 | void devlink_free(struct devlink *devlink) |
| 5300 | { |
Parav Pandit | b904aad | 2019-02-08 15:15:00 -0600 | [diff] [blame] | 5301 | WARN_ON(!list_empty(&devlink->reporter_list)); |
| 5302 | WARN_ON(!list_empty(&devlink->region_list)); |
| 5303 | WARN_ON(!list_empty(&devlink->param_list)); |
| 5304 | WARN_ON(!list_empty(&devlink->resource_list)); |
| 5305 | WARN_ON(!list_empty(&devlink->dpipe_table_list)); |
| 5306 | WARN_ON(!list_empty(&devlink->sb_list)); |
| 5307 | WARN_ON(!list_empty(&devlink->port_list)); |
| 5308 | |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5309 | kfree(devlink); |
| 5310 | } |
| 5311 | EXPORT_SYMBOL_GPL(devlink_free); |
| 5312 | |
| 5313 | /** |
| 5314 | * devlink_port_register - Register devlink port |
| 5315 | * |
| 5316 | * @devlink: devlink |
| 5317 | * @devlink_port: devlink port |
Jakub Kicinski | eeaadd8 | 2019-02-27 11:36:36 -0800 | [diff] [blame] | 5318 | * @port_index: driver-specific numerical identifier of the port |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5319 | * |
| 5320 | * Register devlink port with provided port index. User can use |
| 5321 | * any indexing, even hw-related one. devlink_port structure |
| 5322 | * is convenient to be embedded inside user driver private structure. |
| 5323 | * Note that the caller should take care of zeroing the devlink_port |
| 5324 | * structure. |
| 5325 | */ |
| 5326 | int devlink_port_register(struct devlink *devlink, |
| 5327 | struct devlink_port *devlink_port, |
| 5328 | unsigned int port_index) |
| 5329 | { |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5330 | mutex_lock(&devlink->lock); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5331 | if (devlink_port_index_exists(devlink, port_index)) { |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5332 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5333 | return -EEXIST; |
| 5334 | } |
| 5335 | devlink_port->devlink = devlink; |
| 5336 | devlink_port->index = port_index; |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5337 | devlink_port->registered = true; |
| 5338 | list_add_tail(&devlink_port->list, &devlink->port_list); |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 5339 | INIT_LIST_HEAD(&devlink_port->param_list); |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5340 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5341 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
| 5342 | return 0; |
| 5343 | } |
| 5344 | EXPORT_SYMBOL_GPL(devlink_port_register); |
| 5345 | |
| 5346 | /** |
| 5347 | * devlink_port_unregister - Unregister devlink port |
| 5348 | * |
| 5349 | * @devlink_port: devlink port |
| 5350 | */ |
| 5351 | void devlink_port_unregister(struct devlink_port *devlink_port) |
| 5352 | { |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5353 | struct devlink *devlink = devlink_port->devlink; |
| 5354 | |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5355 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_DEL); |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5356 | mutex_lock(&devlink->lock); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5357 | list_del(&devlink_port->list); |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5358 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5359 | } |
| 5360 | EXPORT_SYMBOL_GPL(devlink_port_unregister); |
| 5361 | |
| 5362 | static void __devlink_port_type_set(struct devlink_port *devlink_port, |
| 5363 | enum devlink_port_type type, |
| 5364 | void *type_dev) |
| 5365 | { |
| 5366 | devlink_port->type = type; |
| 5367 | devlink_port->type_dev = type_dev; |
| 5368 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
| 5369 | } |
| 5370 | |
| 5371 | /** |
| 5372 | * devlink_port_type_eth_set - Set port type to Ethernet |
| 5373 | * |
| 5374 | * @devlink_port: devlink port |
| 5375 | * @netdev: related netdevice |
| 5376 | */ |
| 5377 | void devlink_port_type_eth_set(struct devlink_port *devlink_port, |
| 5378 | struct net_device *netdev) |
| 5379 | { |
| 5380 | return __devlink_port_type_set(devlink_port, |
| 5381 | DEVLINK_PORT_TYPE_ETH, netdev); |
| 5382 | } |
| 5383 | EXPORT_SYMBOL_GPL(devlink_port_type_eth_set); |
| 5384 | |
| 5385 | /** |
| 5386 | * devlink_port_type_ib_set - Set port type to InfiniBand |
| 5387 | * |
| 5388 | * @devlink_port: devlink port |
| 5389 | * @ibdev: related IB device |
| 5390 | */ |
| 5391 | void devlink_port_type_ib_set(struct devlink_port *devlink_port, |
| 5392 | struct ib_device *ibdev) |
| 5393 | { |
| 5394 | return __devlink_port_type_set(devlink_port, |
| 5395 | DEVLINK_PORT_TYPE_IB, ibdev); |
| 5396 | } |
| 5397 | EXPORT_SYMBOL_GPL(devlink_port_type_ib_set); |
| 5398 | |
| 5399 | /** |
| 5400 | * devlink_port_type_clear - Clear port type |
| 5401 | * |
| 5402 | * @devlink_port: devlink port |
| 5403 | */ |
| 5404 | void devlink_port_type_clear(struct devlink_port *devlink_port) |
| 5405 | { |
| 5406 | return __devlink_port_type_set(devlink_port, |
| 5407 | DEVLINK_PORT_TYPE_NOTSET, NULL); |
| 5408 | } |
| 5409 | EXPORT_SYMBOL_GPL(devlink_port_type_clear); |
| 5410 | |
| 5411 | /** |
Jiri Pirko | b9ffcba | 2018-05-18 09:29:00 +0200 | [diff] [blame] | 5412 | * devlink_port_attrs_set - Set port attributes |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5413 | * |
| 5414 | * @devlink_port: devlink port |
Jiri Pirko | 5ec1380 | 2018-05-18 09:29:01 +0200 | [diff] [blame] | 5415 | * @flavour: flavour of the port |
Jiri Pirko | b9ffcba | 2018-05-18 09:29:00 +0200 | [diff] [blame] | 5416 | * @port_number: number of the port that is facing user, for example |
| 5417 | * the front panel port number |
| 5418 | * @split: indicates if this is split port |
| 5419 | * @split_subport_number: if the port is split, this is the number |
| 5420 | * of subport. |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5421 | */ |
Jiri Pirko | b9ffcba | 2018-05-18 09:29:00 +0200 | [diff] [blame] | 5422 | void devlink_port_attrs_set(struct devlink_port *devlink_port, |
Jiri Pirko | 5ec1380 | 2018-05-18 09:29:01 +0200 | [diff] [blame] | 5423 | enum devlink_port_flavour flavour, |
Jiri Pirko | b9ffcba | 2018-05-18 09:29:00 +0200 | [diff] [blame] | 5424 | u32 port_number, bool split, |
| 5425 | u32 split_subport_number) |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5426 | { |
Jiri Pirko | b9ffcba | 2018-05-18 09:29:00 +0200 | [diff] [blame] | 5427 | struct devlink_port_attrs *attrs = &devlink_port->attrs; |
| 5428 | |
| 5429 | attrs->set = true; |
Jiri Pirko | 5ec1380 | 2018-05-18 09:29:01 +0200 | [diff] [blame] | 5430 | attrs->flavour = flavour; |
Jiri Pirko | b9ffcba | 2018-05-18 09:29:00 +0200 | [diff] [blame] | 5431 | attrs->port_number = port_number; |
| 5432 | attrs->split = split; |
| 5433 | attrs->split_subport_number = split_subport_number; |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5434 | devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW); |
| 5435 | } |
Jiri Pirko | b9ffcba | 2018-05-18 09:29:00 +0200 | [diff] [blame] | 5436 | EXPORT_SYMBOL_GPL(devlink_port_attrs_set); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 5437 | |
Jiri Pirko | 08474c1 | 2018-05-18 09:29:02 +0200 | [diff] [blame] | 5438 | int devlink_port_get_phys_port_name(struct devlink_port *devlink_port, |
| 5439 | char *name, size_t len) |
| 5440 | { |
| 5441 | struct devlink_port_attrs *attrs = &devlink_port->attrs; |
| 5442 | int n = 0; |
| 5443 | |
| 5444 | if (!attrs->set) |
| 5445 | return -EOPNOTSUPP; |
| 5446 | |
| 5447 | switch (attrs->flavour) { |
| 5448 | case DEVLINK_PORT_FLAVOUR_PHYSICAL: |
| 5449 | if (!attrs->split) |
| 5450 | n = snprintf(name, len, "p%u", attrs->port_number); |
| 5451 | else |
| 5452 | n = snprintf(name, len, "p%us%u", attrs->port_number, |
| 5453 | attrs->split_subport_number); |
| 5454 | break; |
| 5455 | case DEVLINK_PORT_FLAVOUR_CPU: |
| 5456 | case DEVLINK_PORT_FLAVOUR_DSA: |
| 5457 | /* As CPU and DSA ports do not have a netdevice associated |
| 5458 | * case should not ever happen. |
| 5459 | */ |
| 5460 | WARN_ON(1); |
| 5461 | return -EINVAL; |
| 5462 | } |
| 5463 | |
| 5464 | if (n >= len) |
| 5465 | return -EINVAL; |
| 5466 | |
| 5467 | return 0; |
| 5468 | } |
| 5469 | EXPORT_SYMBOL_GPL(devlink_port_get_phys_port_name); |
| 5470 | |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 5471 | int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, |
| 5472 | u32 size, u16 ingress_pools_count, |
| 5473 | u16 egress_pools_count, u16 ingress_tc_count, |
| 5474 | u16 egress_tc_count) |
| 5475 | { |
| 5476 | struct devlink_sb *devlink_sb; |
| 5477 | int err = 0; |
| 5478 | |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5479 | mutex_lock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 5480 | if (devlink_sb_index_exists(devlink, sb_index)) { |
| 5481 | err = -EEXIST; |
| 5482 | goto unlock; |
| 5483 | } |
| 5484 | |
| 5485 | devlink_sb = kzalloc(sizeof(*devlink_sb), GFP_KERNEL); |
| 5486 | if (!devlink_sb) { |
| 5487 | err = -ENOMEM; |
| 5488 | goto unlock; |
| 5489 | } |
| 5490 | devlink_sb->index = sb_index; |
| 5491 | devlink_sb->size = size; |
| 5492 | devlink_sb->ingress_pools_count = ingress_pools_count; |
| 5493 | devlink_sb->egress_pools_count = egress_pools_count; |
| 5494 | devlink_sb->ingress_tc_count = ingress_tc_count; |
| 5495 | devlink_sb->egress_tc_count = egress_tc_count; |
| 5496 | list_add_tail(&devlink_sb->list, &devlink->sb_list); |
| 5497 | unlock: |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5498 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 5499 | return err; |
| 5500 | } |
| 5501 | EXPORT_SYMBOL_GPL(devlink_sb_register); |
| 5502 | |
| 5503 | void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index) |
| 5504 | { |
| 5505 | struct devlink_sb *devlink_sb; |
| 5506 | |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5507 | mutex_lock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 5508 | devlink_sb = devlink_sb_get_by_index(devlink, sb_index); |
| 5509 | WARN_ON(!devlink_sb); |
| 5510 | list_del(&devlink_sb->list); |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5511 | mutex_unlock(&devlink->lock); |
Jiri Pirko | bf79747 | 2016-04-14 18:19:13 +0200 | [diff] [blame] | 5512 | kfree(devlink_sb); |
| 5513 | } |
| 5514 | EXPORT_SYMBOL_GPL(devlink_sb_unregister); |
| 5515 | |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5516 | /** |
| 5517 | * devlink_dpipe_headers_register - register dpipe headers |
| 5518 | * |
| 5519 | * @devlink: devlink |
| 5520 | * @dpipe_headers: dpipe header array |
| 5521 | * |
| 5522 | * Register the headers supported by hardware. |
| 5523 | */ |
| 5524 | int devlink_dpipe_headers_register(struct devlink *devlink, |
| 5525 | struct devlink_dpipe_headers *dpipe_headers) |
| 5526 | { |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5527 | mutex_lock(&devlink->lock); |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5528 | devlink->dpipe_headers = dpipe_headers; |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5529 | mutex_unlock(&devlink->lock); |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5530 | return 0; |
| 5531 | } |
| 5532 | EXPORT_SYMBOL_GPL(devlink_dpipe_headers_register); |
| 5533 | |
| 5534 | /** |
| 5535 | * devlink_dpipe_headers_unregister - unregister dpipe headers |
| 5536 | * |
| 5537 | * @devlink: devlink |
| 5538 | * |
| 5539 | * Unregister the headers supported by hardware. |
| 5540 | */ |
| 5541 | void devlink_dpipe_headers_unregister(struct devlink *devlink) |
| 5542 | { |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5543 | mutex_lock(&devlink->lock); |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5544 | devlink->dpipe_headers = NULL; |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5545 | mutex_unlock(&devlink->lock); |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5546 | } |
| 5547 | EXPORT_SYMBOL_GPL(devlink_dpipe_headers_unregister); |
| 5548 | |
| 5549 | /** |
| 5550 | * devlink_dpipe_table_counter_enabled - check if counter allocation |
| 5551 | * required |
| 5552 | * @devlink: devlink |
| 5553 | * @table_name: tables name |
| 5554 | * |
| 5555 | * Used by driver to check if counter allocation is required. |
| 5556 | * After counter allocation is turned on the table entries |
| 5557 | * are updated to include counter statistics. |
| 5558 | * |
| 5559 | * After that point on the driver must respect the counter |
| 5560 | * state so that each entry added to the table is added |
| 5561 | * with a counter. |
| 5562 | */ |
| 5563 | bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, |
| 5564 | const char *table_name) |
| 5565 | { |
| 5566 | struct devlink_dpipe_table *table; |
| 5567 | bool enabled; |
| 5568 | |
| 5569 | rcu_read_lock(); |
| 5570 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
| 5571 | table_name); |
| 5572 | enabled = false; |
| 5573 | if (table) |
| 5574 | enabled = table->counters_enabled; |
| 5575 | rcu_read_unlock(); |
| 5576 | return enabled; |
| 5577 | } |
| 5578 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_counter_enabled); |
| 5579 | |
| 5580 | /** |
| 5581 | * devlink_dpipe_table_register - register dpipe table |
| 5582 | * |
| 5583 | * @devlink: devlink |
| 5584 | * @table_name: table name |
| 5585 | * @table_ops: table ops |
| 5586 | * @priv: priv |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5587 | * @counter_control_extern: external control for counters |
| 5588 | */ |
| 5589 | int devlink_dpipe_table_register(struct devlink *devlink, |
| 5590 | const char *table_name, |
| 5591 | struct devlink_dpipe_table_ops *table_ops, |
Arkadi Sharshevsky | ffd3cdc | 2017-08-24 08:40:02 +0200 | [diff] [blame] | 5592 | void *priv, bool counter_control_extern) |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5593 | { |
| 5594 | struct devlink_dpipe_table *table; |
| 5595 | |
| 5596 | if (devlink_dpipe_table_find(&devlink->dpipe_table_list, table_name)) |
| 5597 | return -EEXIST; |
| 5598 | |
Arkadi Sharshevsky | ffd3cdc | 2017-08-24 08:40:02 +0200 | [diff] [blame] | 5599 | if (WARN_ON(!table_ops->size_get)) |
| 5600 | return -EINVAL; |
| 5601 | |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5602 | table = kzalloc(sizeof(*table), GFP_KERNEL); |
| 5603 | if (!table) |
| 5604 | return -ENOMEM; |
| 5605 | |
| 5606 | table->name = table_name; |
| 5607 | table->table_ops = table_ops; |
| 5608 | table->priv = priv; |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5609 | table->counter_control_extern = counter_control_extern; |
| 5610 | |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5611 | mutex_lock(&devlink->lock); |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5612 | list_add_tail_rcu(&table->list, &devlink->dpipe_table_list); |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5613 | mutex_unlock(&devlink->lock); |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5614 | return 0; |
| 5615 | } |
| 5616 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_register); |
| 5617 | |
| 5618 | /** |
| 5619 | * devlink_dpipe_table_unregister - unregister dpipe table |
| 5620 | * |
| 5621 | * @devlink: devlink |
| 5622 | * @table_name: table name |
| 5623 | */ |
| 5624 | void devlink_dpipe_table_unregister(struct devlink *devlink, |
| 5625 | const char *table_name) |
| 5626 | { |
| 5627 | struct devlink_dpipe_table *table; |
| 5628 | |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5629 | mutex_lock(&devlink->lock); |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5630 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
| 5631 | table_name); |
| 5632 | if (!table) |
| 5633 | goto unlock; |
| 5634 | list_del_rcu(&table->list); |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5635 | mutex_unlock(&devlink->lock); |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5636 | kfree_rcu(table, rcu); |
| 5637 | return; |
| 5638 | unlock: |
Arkadi Sharshevsky | 2406e7e | 2018-01-15 08:59:02 +0100 | [diff] [blame] | 5639 | mutex_unlock(&devlink->lock); |
Arkadi Sharshevsky | 1555d20 | 2017-03-28 17:24:10 +0200 | [diff] [blame] | 5640 | } |
| 5641 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_unregister); |
| 5642 | |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 5643 | /** |
| 5644 | * devlink_resource_register - devlink resource register |
| 5645 | * |
| 5646 | * @devlink: devlink |
| 5647 | * @resource_name: resource's name |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 5648 | * @resource_size: resource's size |
| 5649 | * @resource_id: resource's id |
Jakub Kicinski | eeaadd8 | 2019-02-27 11:36:36 -0800 | [diff] [blame] | 5650 | * @parent_resource_id: resource's parent id |
| 5651 | * @size_params: size parameters |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 5652 | */ |
| 5653 | int devlink_resource_register(struct devlink *devlink, |
| 5654 | const char *resource_name, |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 5655 | u64 resource_size, |
| 5656 | u64 resource_id, |
| 5657 | u64 parent_resource_id, |
Jiri Pirko | fc56be4 | 2018-04-05 22:13:21 +0200 | [diff] [blame] | 5658 | const struct devlink_resource_size_params *size_params) |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 5659 | { |
| 5660 | struct devlink_resource *resource; |
| 5661 | struct list_head *resource_list; |
David Ahern | 1453074 | 2018-03-20 19:31:14 -0700 | [diff] [blame] | 5662 | bool top_hierarchy; |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 5663 | int err = 0; |
| 5664 | |
David Ahern | 1453074 | 2018-03-20 19:31:14 -0700 | [diff] [blame] | 5665 | top_hierarchy = parent_resource_id == DEVLINK_RESOURCE_ID_PARENT_TOP; |
| 5666 | |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 5667 | mutex_lock(&devlink->lock); |
| 5668 | resource = devlink_resource_find(devlink, NULL, resource_id); |
| 5669 | if (resource) { |
| 5670 | err = -EINVAL; |
| 5671 | goto out; |
| 5672 | } |
| 5673 | |
| 5674 | resource = kzalloc(sizeof(*resource), GFP_KERNEL); |
| 5675 | if (!resource) { |
| 5676 | err = -ENOMEM; |
| 5677 | goto out; |
| 5678 | } |
| 5679 | |
| 5680 | if (top_hierarchy) { |
| 5681 | resource_list = &devlink->resource_list; |
| 5682 | } else { |
| 5683 | struct devlink_resource *parent_resource; |
| 5684 | |
| 5685 | parent_resource = devlink_resource_find(devlink, NULL, |
| 5686 | parent_resource_id); |
| 5687 | if (parent_resource) { |
| 5688 | resource_list = &parent_resource->resource_list; |
| 5689 | resource->parent = parent_resource; |
| 5690 | } else { |
Colin Ian King | b75703d | 2018-01-22 10:31:19 +0000 | [diff] [blame] | 5691 | kfree(resource); |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 5692 | err = -EINVAL; |
| 5693 | goto out; |
| 5694 | } |
| 5695 | } |
| 5696 | |
| 5697 | resource->name = resource_name; |
| 5698 | resource->size = resource_size; |
| 5699 | resource->size_new = resource_size; |
| 5700 | resource->id = resource_id; |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 5701 | resource->size_valid = true; |
Jiri Pirko | 77d2709 | 2018-02-28 13:12:09 +0100 | [diff] [blame] | 5702 | memcpy(&resource->size_params, size_params, |
| 5703 | sizeof(resource->size_params)); |
Arkadi Sharshevsky | d9f9b9a | 2018-01-15 08:59:03 +0100 | [diff] [blame] | 5704 | INIT_LIST_HEAD(&resource->resource_list); |
| 5705 | list_add_tail(&resource->list, resource_list); |
| 5706 | out: |
| 5707 | mutex_unlock(&devlink->lock); |
| 5708 | return err; |
| 5709 | } |
| 5710 | EXPORT_SYMBOL_GPL(devlink_resource_register); |
| 5711 | |
| 5712 | /** |
| 5713 | * devlink_resources_unregister - free all resources |
| 5714 | * |
| 5715 | * @devlink: devlink |
| 5716 | * @resource: resource |
| 5717 | */ |
| 5718 | void devlink_resources_unregister(struct devlink *devlink, |
| 5719 | struct devlink_resource *resource) |
| 5720 | { |
| 5721 | struct devlink_resource *tmp, *child_resource; |
| 5722 | struct list_head *resource_list; |
| 5723 | |
| 5724 | if (resource) |
| 5725 | resource_list = &resource->resource_list; |
| 5726 | else |
| 5727 | resource_list = &devlink->resource_list; |
| 5728 | |
| 5729 | if (!resource) |
| 5730 | mutex_lock(&devlink->lock); |
| 5731 | |
| 5732 | list_for_each_entry_safe(child_resource, tmp, resource_list, list) { |
| 5733 | devlink_resources_unregister(devlink, child_resource); |
| 5734 | list_del(&child_resource->list); |
| 5735 | kfree(child_resource); |
| 5736 | } |
| 5737 | |
| 5738 | if (!resource) |
| 5739 | mutex_unlock(&devlink->lock); |
| 5740 | } |
| 5741 | EXPORT_SYMBOL_GPL(devlink_resources_unregister); |
| 5742 | |
| 5743 | /** |
| 5744 | * devlink_resource_size_get - get and update size |
| 5745 | * |
| 5746 | * @devlink: devlink |
| 5747 | * @resource_id: the requested resource id |
| 5748 | * @p_resource_size: ptr to update |
| 5749 | */ |
| 5750 | int devlink_resource_size_get(struct devlink *devlink, |
| 5751 | u64 resource_id, |
| 5752 | u64 *p_resource_size) |
| 5753 | { |
| 5754 | struct devlink_resource *resource; |
| 5755 | int err = 0; |
| 5756 | |
| 5757 | mutex_lock(&devlink->lock); |
| 5758 | resource = devlink_resource_find(devlink, NULL, resource_id); |
| 5759 | if (!resource) { |
| 5760 | err = -EINVAL; |
| 5761 | goto out; |
| 5762 | } |
| 5763 | *p_resource_size = resource->size_new; |
| 5764 | resource->size = resource->size_new; |
| 5765 | out: |
| 5766 | mutex_unlock(&devlink->lock); |
| 5767 | return err; |
| 5768 | } |
| 5769 | EXPORT_SYMBOL_GPL(devlink_resource_size_get); |
| 5770 | |
Arkadi Sharshevsky | 56dc7cd | 2018-01-15 08:59:05 +0100 | [diff] [blame] | 5771 | /** |
| 5772 | * devlink_dpipe_table_resource_set - set the resource id |
| 5773 | * |
| 5774 | * @devlink: devlink |
| 5775 | * @table_name: table name |
| 5776 | * @resource_id: resource id |
| 5777 | * @resource_units: number of resource's units consumed per table's entry |
| 5778 | */ |
| 5779 | int devlink_dpipe_table_resource_set(struct devlink *devlink, |
| 5780 | const char *table_name, u64 resource_id, |
| 5781 | u64 resource_units) |
| 5782 | { |
| 5783 | struct devlink_dpipe_table *table; |
| 5784 | int err = 0; |
| 5785 | |
| 5786 | mutex_lock(&devlink->lock); |
| 5787 | table = devlink_dpipe_table_find(&devlink->dpipe_table_list, |
| 5788 | table_name); |
| 5789 | if (!table) { |
| 5790 | err = -EINVAL; |
| 5791 | goto out; |
| 5792 | } |
| 5793 | table->resource_id = resource_id; |
| 5794 | table->resource_units = resource_units; |
| 5795 | table->resource_valid = true; |
| 5796 | out: |
| 5797 | mutex_unlock(&devlink->lock); |
| 5798 | return err; |
| 5799 | } |
| 5800 | EXPORT_SYMBOL_GPL(devlink_dpipe_table_resource_set); |
| 5801 | |
Jiri Pirko | fc56be4 | 2018-04-05 22:13:21 +0200 | [diff] [blame] | 5802 | /** |
| 5803 | * devlink_resource_occ_get_register - register occupancy getter |
| 5804 | * |
| 5805 | * @devlink: devlink |
| 5806 | * @resource_id: resource id |
| 5807 | * @occ_get: occupancy getter callback |
| 5808 | * @occ_get_priv: occupancy getter callback priv |
| 5809 | */ |
| 5810 | void devlink_resource_occ_get_register(struct devlink *devlink, |
| 5811 | u64 resource_id, |
| 5812 | devlink_resource_occ_get_t *occ_get, |
| 5813 | void *occ_get_priv) |
| 5814 | { |
| 5815 | struct devlink_resource *resource; |
| 5816 | |
| 5817 | mutex_lock(&devlink->lock); |
| 5818 | resource = devlink_resource_find(devlink, NULL, resource_id); |
| 5819 | if (WARN_ON(!resource)) |
| 5820 | goto out; |
| 5821 | WARN_ON(resource->occ_get); |
| 5822 | |
| 5823 | resource->occ_get = occ_get; |
| 5824 | resource->occ_get_priv = occ_get_priv; |
| 5825 | out: |
| 5826 | mutex_unlock(&devlink->lock); |
| 5827 | } |
| 5828 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_register); |
| 5829 | |
| 5830 | /** |
| 5831 | * devlink_resource_occ_get_unregister - unregister occupancy getter |
| 5832 | * |
| 5833 | * @devlink: devlink |
| 5834 | * @resource_id: resource id |
| 5835 | */ |
| 5836 | void devlink_resource_occ_get_unregister(struct devlink *devlink, |
| 5837 | u64 resource_id) |
| 5838 | { |
| 5839 | struct devlink_resource *resource; |
| 5840 | |
| 5841 | mutex_lock(&devlink->lock); |
| 5842 | resource = devlink_resource_find(devlink, NULL, resource_id); |
| 5843 | if (WARN_ON(!resource)) |
| 5844 | goto out; |
| 5845 | WARN_ON(!resource->occ_get); |
| 5846 | |
| 5847 | resource->occ_get = NULL; |
| 5848 | resource->occ_get_priv = NULL; |
| 5849 | out: |
| 5850 | mutex_unlock(&devlink->lock); |
| 5851 | } |
| 5852 | EXPORT_SYMBOL_GPL(devlink_resource_occ_get_unregister); |
| 5853 | |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 5854 | static int devlink_param_verify(const struct devlink_param *param) |
| 5855 | { |
| 5856 | if (!param || !param->name || !param->supported_cmodes) |
| 5857 | return -EINVAL; |
| 5858 | if (param->generic) |
| 5859 | return devlink_param_generic_verify(param); |
| 5860 | else |
| 5861 | return devlink_param_driver_verify(param); |
| 5862 | } |
| 5863 | |
| 5864 | static int __devlink_params_register(struct devlink *devlink, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 5865 | unsigned int port_index, |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 5866 | struct list_head *param_list, |
| 5867 | const struct devlink_param *params, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 5868 | size_t params_count, |
| 5869 | enum devlink_command reg_cmd, |
| 5870 | enum devlink_command unreg_cmd) |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 5871 | { |
| 5872 | const struct devlink_param *param = params; |
| 5873 | int i; |
| 5874 | int err; |
| 5875 | |
| 5876 | mutex_lock(&devlink->lock); |
| 5877 | for (i = 0; i < params_count; i++, param++) { |
| 5878 | err = devlink_param_verify(param); |
| 5879 | if (err) |
| 5880 | goto rollback; |
| 5881 | |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 5882 | err = devlink_param_register_one(devlink, port_index, |
| 5883 | param_list, param, reg_cmd); |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 5884 | if (err) |
| 5885 | goto rollback; |
| 5886 | } |
| 5887 | |
| 5888 | mutex_unlock(&devlink->lock); |
| 5889 | return 0; |
| 5890 | |
| 5891 | rollback: |
| 5892 | if (!i) |
| 5893 | goto unlock; |
| 5894 | for (param--; i > 0; i--, param--) |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 5895 | devlink_param_unregister_one(devlink, port_index, param_list, |
| 5896 | param, unreg_cmd); |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 5897 | unlock: |
| 5898 | mutex_unlock(&devlink->lock); |
| 5899 | return err; |
| 5900 | } |
| 5901 | |
| 5902 | static void __devlink_params_unregister(struct devlink *devlink, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 5903 | unsigned int port_index, |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 5904 | struct list_head *param_list, |
| 5905 | const struct devlink_param *params, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 5906 | size_t params_count, |
| 5907 | enum devlink_command cmd) |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 5908 | { |
| 5909 | const struct devlink_param *param = params; |
| 5910 | int i; |
| 5911 | |
| 5912 | mutex_lock(&devlink->lock); |
| 5913 | for (i = 0; i < params_count; i++, param++) |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 5914 | devlink_param_unregister_one(devlink, 0, param_list, param, |
| 5915 | cmd); |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 5916 | mutex_unlock(&devlink->lock); |
| 5917 | } |
| 5918 | |
Moshe Shemesh | eabaef1 | 2018-07-04 14:30:28 +0300 | [diff] [blame] | 5919 | /** |
| 5920 | * devlink_params_register - register configuration parameters |
| 5921 | * |
| 5922 | * @devlink: devlink |
| 5923 | * @params: configuration parameters array |
| 5924 | * @params_count: number of parameters provided |
| 5925 | * |
| 5926 | * Register the configuration parameters supported by the driver. |
| 5927 | */ |
| 5928 | int devlink_params_register(struct devlink *devlink, |
| 5929 | const struct devlink_param *params, |
| 5930 | size_t params_count) |
| 5931 | { |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 5932 | return __devlink_params_register(devlink, 0, &devlink->param_list, |
| 5933 | params, params_count, |
| 5934 | DEVLINK_CMD_PARAM_NEW, |
| 5935 | DEVLINK_CMD_PARAM_DEL); |
Moshe Shemesh | eabaef1 | 2018-07-04 14:30:28 +0300 | [diff] [blame] | 5936 | } |
| 5937 | EXPORT_SYMBOL_GPL(devlink_params_register); |
| 5938 | |
| 5939 | /** |
| 5940 | * devlink_params_unregister - unregister configuration parameters |
| 5941 | * @devlink: devlink |
| 5942 | * @params: configuration parameters to unregister |
| 5943 | * @params_count: number of parameters provided |
| 5944 | */ |
| 5945 | void devlink_params_unregister(struct devlink *devlink, |
| 5946 | const struct devlink_param *params, |
| 5947 | size_t params_count) |
| 5948 | { |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 5949 | return __devlink_params_unregister(devlink, 0, &devlink->param_list, |
| 5950 | params, params_count, |
| 5951 | DEVLINK_CMD_PARAM_DEL); |
Moshe Shemesh | eabaef1 | 2018-07-04 14:30:28 +0300 | [diff] [blame] | 5952 | } |
| 5953 | EXPORT_SYMBOL_GPL(devlink_params_unregister); |
| 5954 | |
Moshe Shemesh | ec01aeb | 2018-07-04 14:30:31 +0300 | [diff] [blame] | 5955 | /** |
Jiri Pirko | 7c62cfb | 2019-02-07 11:22:45 +0000 | [diff] [blame] | 5956 | * devlink_params_publish - publish configuration parameters |
| 5957 | * |
| 5958 | * @devlink: devlink |
| 5959 | * |
| 5960 | * Publish previously registered configuration parameters. |
| 5961 | */ |
| 5962 | void devlink_params_publish(struct devlink *devlink) |
| 5963 | { |
| 5964 | struct devlink_param_item *param_item; |
| 5965 | |
| 5966 | list_for_each_entry(param_item, &devlink->param_list, list) { |
| 5967 | if (param_item->published) |
| 5968 | continue; |
| 5969 | param_item->published = true; |
| 5970 | devlink_param_notify(devlink, 0, param_item, |
| 5971 | DEVLINK_CMD_PARAM_NEW); |
| 5972 | } |
| 5973 | } |
| 5974 | EXPORT_SYMBOL_GPL(devlink_params_publish); |
| 5975 | |
| 5976 | /** |
| 5977 | * devlink_params_unpublish - unpublish configuration parameters |
| 5978 | * |
| 5979 | * @devlink: devlink |
| 5980 | * |
| 5981 | * Unpublish previously registered configuration parameters. |
| 5982 | */ |
| 5983 | void devlink_params_unpublish(struct devlink *devlink) |
| 5984 | { |
| 5985 | struct devlink_param_item *param_item; |
| 5986 | |
| 5987 | list_for_each_entry(param_item, &devlink->param_list, list) { |
| 5988 | if (!param_item->published) |
| 5989 | continue; |
| 5990 | param_item->published = false; |
| 5991 | devlink_param_notify(devlink, 0, param_item, |
| 5992 | DEVLINK_CMD_PARAM_DEL); |
| 5993 | } |
| 5994 | } |
| 5995 | EXPORT_SYMBOL_GPL(devlink_params_unpublish); |
| 5996 | |
| 5997 | /** |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 5998 | * devlink_port_params_register - register port configuration parameters |
| 5999 | * |
| 6000 | * @devlink_port: devlink port |
| 6001 | * @params: configuration parameters array |
| 6002 | * @params_count: number of parameters provided |
| 6003 | * |
| 6004 | * Register the configuration parameters supported by the port. |
| 6005 | */ |
| 6006 | int devlink_port_params_register(struct devlink_port *devlink_port, |
| 6007 | const struct devlink_param *params, |
| 6008 | size_t params_count) |
| 6009 | { |
| 6010 | return __devlink_params_register(devlink_port->devlink, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 6011 | devlink_port->index, |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 6012 | &devlink_port->param_list, params, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 6013 | params_count, |
| 6014 | DEVLINK_CMD_PORT_PARAM_NEW, |
| 6015 | DEVLINK_CMD_PORT_PARAM_DEL); |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 6016 | } |
| 6017 | EXPORT_SYMBOL_GPL(devlink_port_params_register); |
| 6018 | |
| 6019 | /** |
| 6020 | * devlink_port_params_unregister - unregister port configuration |
| 6021 | * parameters |
| 6022 | * |
| 6023 | * @devlink_port: devlink port |
| 6024 | * @params: configuration parameters array |
| 6025 | * @params_count: number of parameters provided |
| 6026 | */ |
| 6027 | void devlink_port_params_unregister(struct devlink_port *devlink_port, |
| 6028 | const struct devlink_param *params, |
| 6029 | size_t params_count) |
| 6030 | { |
| 6031 | return __devlink_params_unregister(devlink_port->devlink, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 6032 | devlink_port->index, |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 6033 | &devlink_port->param_list, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 6034 | params, params_count, |
| 6035 | DEVLINK_CMD_PORT_PARAM_DEL); |
Vasundhara Volam | 39e6160 | 2019-01-28 18:00:20 +0530 | [diff] [blame] | 6036 | } |
| 6037 | EXPORT_SYMBOL_GPL(devlink_port_params_unregister); |
| 6038 | |
Vasundhara Volam | ffd19b9 | 2019-01-28 18:00:23 +0530 | [diff] [blame] | 6039 | static int |
| 6040 | __devlink_param_driverinit_value_get(struct list_head *param_list, u32 param_id, |
| 6041 | union devlink_param_value *init_val) |
Moshe Shemesh | ec01aeb | 2018-07-04 14:30:31 +0300 | [diff] [blame] | 6042 | { |
| 6043 | struct devlink_param_item *param_item; |
| 6044 | |
Vasundhara Volam | ffd19b9 | 2019-01-28 18:00:23 +0530 | [diff] [blame] | 6045 | param_item = devlink_param_find_by_id(param_list, param_id); |
Moshe Shemesh | ec01aeb | 2018-07-04 14:30:31 +0300 | [diff] [blame] | 6046 | if (!param_item) |
| 6047 | return -EINVAL; |
| 6048 | |
| 6049 | if (!param_item->driverinit_value_valid || |
| 6050 | !devlink_param_cmode_is_supported(param_item->param, |
| 6051 | DEVLINK_PARAM_CMODE_DRIVERINIT)) |
| 6052 | return -EOPNOTSUPP; |
| 6053 | |
Moshe Shemesh | 1276534 | 2018-10-10 16:09:26 +0300 | [diff] [blame] | 6054 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) |
| 6055 | strcpy(init_val->vstr, param_item->driverinit_value.vstr); |
| 6056 | else |
| 6057 | *init_val = param_item->driverinit_value; |
Moshe Shemesh | ec01aeb | 2018-07-04 14:30:31 +0300 | [diff] [blame] | 6058 | |
| 6059 | return 0; |
| 6060 | } |
Vasundhara Volam | ffd19b9 | 2019-01-28 18:00:23 +0530 | [diff] [blame] | 6061 | |
Vasundhara Volam | 5473a7b | 2019-01-28 18:00:24 +0530 | [diff] [blame] | 6062 | static int |
| 6063 | __devlink_param_driverinit_value_set(struct devlink *devlink, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 6064 | unsigned int port_index, |
Vasundhara Volam | 5473a7b | 2019-01-28 18:00:24 +0530 | [diff] [blame] | 6065 | struct list_head *param_list, u32 param_id, |
| 6066 | union devlink_param_value init_val, |
| 6067 | enum devlink_command cmd) |
| 6068 | { |
| 6069 | struct devlink_param_item *param_item; |
| 6070 | |
| 6071 | param_item = devlink_param_find_by_id(param_list, param_id); |
| 6072 | if (!param_item) |
| 6073 | return -EINVAL; |
| 6074 | |
| 6075 | if (!devlink_param_cmode_is_supported(param_item->param, |
| 6076 | DEVLINK_PARAM_CMODE_DRIVERINIT)) |
| 6077 | return -EOPNOTSUPP; |
| 6078 | |
| 6079 | if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING) |
| 6080 | strcpy(param_item->driverinit_value.vstr, init_val.vstr); |
| 6081 | else |
| 6082 | param_item->driverinit_value = init_val; |
| 6083 | param_item->driverinit_value_valid = true; |
| 6084 | |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 6085 | devlink_param_notify(devlink, port_index, param_item, cmd); |
Vasundhara Volam | 5473a7b | 2019-01-28 18:00:24 +0530 | [diff] [blame] | 6086 | return 0; |
| 6087 | } |
| 6088 | |
Vasundhara Volam | ffd19b9 | 2019-01-28 18:00:23 +0530 | [diff] [blame] | 6089 | /** |
| 6090 | * devlink_param_driverinit_value_get - get configuration parameter |
| 6091 | * value for driver initializing |
| 6092 | * |
| 6093 | * @devlink: devlink |
| 6094 | * @param_id: parameter ID |
| 6095 | * @init_val: value of parameter in driverinit configuration mode |
| 6096 | * |
| 6097 | * This function should be used by the driver to get driverinit |
| 6098 | * configuration for initialization after reload command. |
| 6099 | */ |
| 6100 | int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, |
| 6101 | union devlink_param_value *init_val) |
| 6102 | { |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 6103 | if (!devlink->ops->reload) |
Vasundhara Volam | ffd19b9 | 2019-01-28 18:00:23 +0530 | [diff] [blame] | 6104 | return -EOPNOTSUPP; |
| 6105 | |
| 6106 | return __devlink_param_driverinit_value_get(&devlink->param_list, |
| 6107 | param_id, init_val); |
| 6108 | } |
Moshe Shemesh | ec01aeb | 2018-07-04 14:30:31 +0300 | [diff] [blame] | 6109 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_get); |
| 6110 | |
| 6111 | /** |
| 6112 | * devlink_param_driverinit_value_set - set value of configuration |
| 6113 | * parameter for driverinit |
| 6114 | * configuration mode |
| 6115 | * |
| 6116 | * @devlink: devlink |
| 6117 | * @param_id: parameter ID |
| 6118 | * @init_val: value of parameter to set for driverinit configuration mode |
| 6119 | * |
| 6120 | * This function should be used by the driver to set driverinit |
| 6121 | * configuration mode default value. |
| 6122 | */ |
| 6123 | int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, |
| 6124 | union devlink_param_value init_val) |
| 6125 | { |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 6126 | return __devlink_param_driverinit_value_set(devlink, 0, |
Vasundhara Volam | 5473a7b | 2019-01-28 18:00:24 +0530 | [diff] [blame] | 6127 | &devlink->param_list, |
| 6128 | param_id, init_val, |
| 6129 | DEVLINK_CMD_PARAM_NEW); |
Moshe Shemesh | ec01aeb | 2018-07-04 14:30:31 +0300 | [diff] [blame] | 6130 | } |
| 6131 | EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_set); |
| 6132 | |
Moshe Shemesh | ea601e1 | 2018-07-04 14:30:32 +0300 | [diff] [blame] | 6133 | /** |
Vasundhara Volam | ffd19b9 | 2019-01-28 18:00:23 +0530 | [diff] [blame] | 6134 | * devlink_port_param_driverinit_value_get - get configuration parameter |
| 6135 | * value for driver initializing |
| 6136 | * |
| 6137 | * @devlink_port: devlink_port |
| 6138 | * @param_id: parameter ID |
| 6139 | * @init_val: value of parameter in driverinit configuration mode |
| 6140 | * |
| 6141 | * This function should be used by the driver to get driverinit |
| 6142 | * configuration for initialization after reload command. |
| 6143 | */ |
| 6144 | int devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port, |
| 6145 | u32 param_id, |
| 6146 | union devlink_param_value *init_val) |
| 6147 | { |
| 6148 | struct devlink *devlink = devlink_port->devlink; |
| 6149 | |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 6150 | if (!devlink->ops->reload) |
Vasundhara Volam | ffd19b9 | 2019-01-28 18:00:23 +0530 | [diff] [blame] | 6151 | return -EOPNOTSUPP; |
| 6152 | |
| 6153 | return __devlink_param_driverinit_value_get(&devlink_port->param_list, |
| 6154 | param_id, init_val); |
| 6155 | } |
| 6156 | EXPORT_SYMBOL_GPL(devlink_port_param_driverinit_value_get); |
| 6157 | |
| 6158 | /** |
Vasundhara Volam | 5473a7b | 2019-01-28 18:00:24 +0530 | [diff] [blame] | 6159 | * devlink_port_param_driverinit_value_set - set value of configuration |
| 6160 | * parameter for driverinit |
| 6161 | * configuration mode |
| 6162 | * |
| 6163 | * @devlink_port: devlink_port |
| 6164 | * @param_id: parameter ID |
| 6165 | * @init_val: value of parameter to set for driverinit configuration mode |
| 6166 | * |
| 6167 | * This function should be used by the driver to set driverinit |
| 6168 | * configuration mode default value. |
| 6169 | */ |
| 6170 | int devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port, |
| 6171 | u32 param_id, |
| 6172 | union devlink_param_value init_val) |
| 6173 | { |
| 6174 | return __devlink_param_driverinit_value_set(devlink_port->devlink, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 6175 | devlink_port->index, |
Vasundhara Volam | 5473a7b | 2019-01-28 18:00:24 +0530 | [diff] [blame] | 6176 | &devlink_port->param_list, |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 6177 | param_id, init_val, |
| 6178 | DEVLINK_CMD_PORT_PARAM_NEW); |
Vasundhara Volam | 5473a7b | 2019-01-28 18:00:24 +0530 | [diff] [blame] | 6179 | } |
| 6180 | EXPORT_SYMBOL_GPL(devlink_port_param_driverinit_value_set); |
| 6181 | |
| 6182 | /** |
Moshe Shemesh | ea601e1 | 2018-07-04 14:30:32 +0300 | [diff] [blame] | 6183 | * devlink_param_value_changed - notify devlink on a parameter's value |
| 6184 | * change. Should be called by the driver |
| 6185 | * right after the change. |
| 6186 | * |
| 6187 | * @devlink: devlink |
| 6188 | * @param_id: parameter ID |
| 6189 | * |
| 6190 | * This function should be used by the driver to notify devlink on value |
| 6191 | * change, excluding driverinit configuration mode. |
| 6192 | * For driverinit configuration mode driver should use the function |
Moshe Shemesh | ea601e1 | 2018-07-04 14:30:32 +0300 | [diff] [blame] | 6193 | */ |
| 6194 | void devlink_param_value_changed(struct devlink *devlink, u32 param_id) |
| 6195 | { |
| 6196 | struct devlink_param_item *param_item; |
| 6197 | |
| 6198 | param_item = devlink_param_find_by_id(&devlink->param_list, param_id); |
| 6199 | WARN_ON(!param_item); |
| 6200 | |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 6201 | devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW); |
Moshe Shemesh | ea601e1 | 2018-07-04 14:30:32 +0300 | [diff] [blame] | 6202 | } |
| 6203 | EXPORT_SYMBOL_GPL(devlink_param_value_changed); |
| 6204 | |
Alex Vesker | b16ebe9 | 2018-07-12 15:13:08 +0300 | [diff] [blame] | 6205 | /** |
Vasundhara Volam | c1e5786d | 2019-01-28 18:00:25 +0530 | [diff] [blame] | 6206 | * devlink_port_param_value_changed - notify devlink on a parameter's value |
| 6207 | * change. Should be called by the driver |
| 6208 | * right after the change. |
| 6209 | * |
| 6210 | * @devlink_port: devlink_port |
| 6211 | * @param_id: parameter ID |
| 6212 | * |
| 6213 | * This function should be used by the driver to notify devlink on value |
| 6214 | * change, excluding driverinit configuration mode. |
| 6215 | * For driverinit configuration mode driver should use the function |
| 6216 | * devlink_port_param_driverinit_value_set() instead. |
| 6217 | */ |
| 6218 | void devlink_port_param_value_changed(struct devlink_port *devlink_port, |
| 6219 | u32 param_id) |
| 6220 | { |
| 6221 | struct devlink_param_item *param_item; |
| 6222 | |
| 6223 | param_item = devlink_param_find_by_id(&devlink_port->param_list, |
| 6224 | param_id); |
| 6225 | WARN_ON(!param_item); |
| 6226 | |
| 6227 | devlink_param_notify(devlink_port->devlink, devlink_port->index, |
| 6228 | param_item, DEVLINK_CMD_PORT_PARAM_NEW); |
| 6229 | } |
| 6230 | EXPORT_SYMBOL_GPL(devlink_port_param_value_changed); |
| 6231 | |
| 6232 | /** |
Moshe Shemesh | bde74ad1 | 2018-10-10 16:09:27 +0300 | [diff] [blame] | 6233 | * devlink_param_value_str_fill - Safely fill-up the string preventing |
| 6234 | * from overflow of the preallocated buffer |
| 6235 | * |
| 6236 | * @dst_val: destination devlink_param_value |
| 6237 | * @src: source buffer |
| 6238 | */ |
| 6239 | void devlink_param_value_str_fill(union devlink_param_value *dst_val, |
| 6240 | const char *src) |
| 6241 | { |
| 6242 | size_t len; |
| 6243 | |
| 6244 | len = strlcpy(dst_val->vstr, src, __DEVLINK_PARAM_MAX_STRING_VALUE); |
| 6245 | WARN_ON(len >= __DEVLINK_PARAM_MAX_STRING_VALUE); |
| 6246 | } |
| 6247 | EXPORT_SYMBOL_GPL(devlink_param_value_str_fill); |
| 6248 | |
| 6249 | /** |
Alex Vesker | b16ebe9 | 2018-07-12 15:13:08 +0300 | [diff] [blame] | 6250 | * devlink_region_create - create a new address region |
| 6251 | * |
| 6252 | * @devlink: devlink |
| 6253 | * @region_name: region name |
| 6254 | * @region_max_snapshots: Maximum supported number of snapshots for region |
| 6255 | * @region_size: size of region |
| 6256 | */ |
| 6257 | struct devlink_region *devlink_region_create(struct devlink *devlink, |
| 6258 | const char *region_name, |
| 6259 | u32 region_max_snapshots, |
| 6260 | u64 region_size) |
| 6261 | { |
| 6262 | struct devlink_region *region; |
| 6263 | int err = 0; |
| 6264 | |
| 6265 | mutex_lock(&devlink->lock); |
| 6266 | |
| 6267 | if (devlink_region_get_by_name(devlink, region_name)) { |
| 6268 | err = -EEXIST; |
| 6269 | goto unlock; |
| 6270 | } |
| 6271 | |
| 6272 | region = kzalloc(sizeof(*region), GFP_KERNEL); |
| 6273 | if (!region) { |
| 6274 | err = -ENOMEM; |
| 6275 | goto unlock; |
| 6276 | } |
| 6277 | |
| 6278 | region->devlink = devlink; |
| 6279 | region->max_snapshots = region_max_snapshots; |
| 6280 | region->name = region_name; |
| 6281 | region->size = region_size; |
| 6282 | INIT_LIST_HEAD(®ion->snapshot_list); |
| 6283 | list_add_tail(®ion->list, &devlink->region_list); |
Alex Vesker | 866319b | 2018-07-12 15:13:13 +0300 | [diff] [blame] | 6284 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_NEW); |
Alex Vesker | b16ebe9 | 2018-07-12 15:13:08 +0300 | [diff] [blame] | 6285 | |
| 6286 | mutex_unlock(&devlink->lock); |
| 6287 | return region; |
| 6288 | |
| 6289 | unlock: |
| 6290 | mutex_unlock(&devlink->lock); |
| 6291 | return ERR_PTR(err); |
| 6292 | } |
| 6293 | EXPORT_SYMBOL_GPL(devlink_region_create); |
| 6294 | |
| 6295 | /** |
| 6296 | * devlink_region_destroy - destroy address region |
| 6297 | * |
| 6298 | * @region: devlink region to destroy |
| 6299 | */ |
| 6300 | void devlink_region_destroy(struct devlink_region *region) |
| 6301 | { |
| 6302 | struct devlink *devlink = region->devlink; |
Alex Vesker | d7e5272 | 2018-07-12 15:13:10 +0300 | [diff] [blame] | 6303 | struct devlink_snapshot *snapshot, *ts; |
Alex Vesker | b16ebe9 | 2018-07-12 15:13:08 +0300 | [diff] [blame] | 6304 | |
| 6305 | mutex_lock(&devlink->lock); |
Alex Vesker | d7e5272 | 2018-07-12 15:13:10 +0300 | [diff] [blame] | 6306 | |
| 6307 | /* Free all snapshots of region */ |
| 6308 | list_for_each_entry_safe(snapshot, ts, ®ion->snapshot_list, list) |
| 6309 | devlink_region_snapshot_del(snapshot); |
| 6310 | |
Alex Vesker | b16ebe9 | 2018-07-12 15:13:08 +0300 | [diff] [blame] | 6311 | list_del(®ion->list); |
Alex Vesker | 866319b | 2018-07-12 15:13:13 +0300 | [diff] [blame] | 6312 | |
| 6313 | devlink_nl_region_notify(region, NULL, DEVLINK_CMD_REGION_DEL); |
Alex Vesker | b16ebe9 | 2018-07-12 15:13:08 +0300 | [diff] [blame] | 6314 | mutex_unlock(&devlink->lock); |
| 6315 | kfree(region); |
| 6316 | } |
| 6317 | EXPORT_SYMBOL_GPL(devlink_region_destroy); |
| 6318 | |
Alex Vesker | ccadfa4 | 2018-07-12 15:13:09 +0300 | [diff] [blame] | 6319 | /** |
| 6320 | * devlink_region_shapshot_id_get - get snapshot ID |
| 6321 | * |
| 6322 | * This callback should be called when adding a new snapshot, |
| 6323 | * Driver should use the same id for multiple snapshots taken |
| 6324 | * on multiple regions at the same time/by the same trigger. |
| 6325 | * |
| 6326 | * @devlink: devlink |
| 6327 | */ |
| 6328 | u32 devlink_region_shapshot_id_get(struct devlink *devlink) |
| 6329 | { |
| 6330 | u32 id; |
| 6331 | |
| 6332 | mutex_lock(&devlink->lock); |
| 6333 | id = ++devlink->snapshot_id; |
| 6334 | mutex_unlock(&devlink->lock); |
| 6335 | |
| 6336 | return id; |
| 6337 | } |
| 6338 | EXPORT_SYMBOL_GPL(devlink_region_shapshot_id_get); |
| 6339 | |
Alex Vesker | d7e5272 | 2018-07-12 15:13:10 +0300 | [diff] [blame] | 6340 | /** |
| 6341 | * devlink_region_snapshot_create - create a new snapshot |
| 6342 | * This will add a new snapshot of a region. The snapshot |
| 6343 | * will be stored on the region struct and can be accessed |
| 6344 | * from devlink. This is useful for future analyses of snapshots. |
| 6345 | * Multiple snapshots can be created on a region. |
| 6346 | * The @snapshot_id should be obtained using the getter function. |
| 6347 | * |
Jakub Kicinski | eeaadd8 | 2019-02-27 11:36:36 -0800 | [diff] [blame] | 6348 | * @region: devlink region of the snapshot |
Alex Vesker | d7e5272 | 2018-07-12 15:13:10 +0300 | [diff] [blame] | 6349 | * @data_len: size of snapshot data |
| 6350 | * @data: snapshot data |
| 6351 | * @snapshot_id: snapshot id to be created |
| 6352 | * @data_destructor: pointer to destructor function to free data |
| 6353 | */ |
| 6354 | int devlink_region_snapshot_create(struct devlink_region *region, u64 data_len, |
| 6355 | u8 *data, u32 snapshot_id, |
| 6356 | devlink_snapshot_data_dest_t *data_destructor) |
| 6357 | { |
| 6358 | struct devlink *devlink = region->devlink; |
| 6359 | struct devlink_snapshot *snapshot; |
| 6360 | int err; |
| 6361 | |
| 6362 | mutex_lock(&devlink->lock); |
| 6363 | |
| 6364 | /* check if region can hold one more snapshot */ |
| 6365 | if (region->cur_snapshots == region->max_snapshots) { |
| 6366 | err = -ENOMEM; |
| 6367 | goto unlock; |
| 6368 | } |
| 6369 | |
| 6370 | if (devlink_region_snapshot_get_by_id(region, snapshot_id)) { |
| 6371 | err = -EEXIST; |
| 6372 | goto unlock; |
| 6373 | } |
| 6374 | |
| 6375 | snapshot = kzalloc(sizeof(*snapshot), GFP_KERNEL); |
| 6376 | if (!snapshot) { |
| 6377 | err = -ENOMEM; |
| 6378 | goto unlock; |
| 6379 | } |
| 6380 | |
| 6381 | snapshot->id = snapshot_id; |
| 6382 | snapshot->region = region; |
| 6383 | snapshot->data = data; |
| 6384 | snapshot->data_len = data_len; |
| 6385 | snapshot->data_destructor = data_destructor; |
| 6386 | |
| 6387 | list_add_tail(&snapshot->list, ®ion->snapshot_list); |
| 6388 | |
| 6389 | region->cur_snapshots++; |
| 6390 | |
Alex Vesker | 866319b | 2018-07-12 15:13:13 +0300 | [diff] [blame] | 6391 | devlink_nl_region_notify(region, snapshot, DEVLINK_CMD_REGION_NEW); |
Alex Vesker | d7e5272 | 2018-07-12 15:13:10 +0300 | [diff] [blame] | 6392 | mutex_unlock(&devlink->lock); |
| 6393 | return 0; |
| 6394 | |
| 6395 | unlock: |
| 6396 | mutex_unlock(&devlink->lock); |
| 6397 | return err; |
| 6398 | } |
| 6399 | EXPORT_SYMBOL_GPL(devlink_region_snapshot_create); |
| 6400 | |
Jakub Kicinski | ddb6e99 | 2019-01-31 10:50:47 -0800 | [diff] [blame] | 6401 | static void __devlink_compat_running_version(struct devlink *devlink, |
| 6402 | char *buf, size_t len) |
| 6403 | { |
| 6404 | const struct nlattr *nlattr; |
| 6405 | struct devlink_info_req req; |
| 6406 | struct sk_buff *msg; |
| 6407 | int rem, err; |
| 6408 | |
Jakub Kicinski | ddb6e99 | 2019-01-31 10:50:47 -0800 | [diff] [blame] | 6409 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
| 6410 | if (!msg) |
| 6411 | return; |
| 6412 | |
| 6413 | req.msg = msg; |
| 6414 | err = devlink->ops->info_get(devlink, &req, NULL); |
| 6415 | if (err) |
| 6416 | goto free_msg; |
| 6417 | |
| 6418 | nla_for_each_attr(nlattr, (void *)msg->data, msg->len, rem) { |
| 6419 | const struct nlattr *kv; |
| 6420 | int rem_kv; |
| 6421 | |
| 6422 | if (nla_type(nlattr) != DEVLINK_ATTR_INFO_VERSION_RUNNING) |
| 6423 | continue; |
| 6424 | |
| 6425 | nla_for_each_nested(kv, nlattr, rem_kv) { |
| 6426 | if (nla_type(kv) != DEVLINK_ATTR_INFO_VERSION_VALUE) |
| 6427 | continue; |
| 6428 | |
| 6429 | strlcat(buf, nla_data(kv), len); |
| 6430 | strlcat(buf, " ", len); |
| 6431 | } |
| 6432 | } |
| 6433 | free_msg: |
| 6434 | nlmsg_free(msg); |
| 6435 | } |
| 6436 | |
| 6437 | void devlink_compat_running_version(struct net_device *dev, |
| 6438 | char *buf, size_t len) |
| 6439 | { |
Jakub Kicinski | ddb6e99 | 2019-01-31 10:50:47 -0800 | [diff] [blame] | 6440 | struct devlink *devlink; |
| 6441 | |
Jakub Kicinski | 1b45ff6 | 2019-02-25 19:34:06 -0800 | [diff] [blame] | 6442 | dev_hold(dev); |
| 6443 | rtnl_unlock(); |
| 6444 | |
Jakub Kicinski | ddb6e99 | 2019-01-31 10:50:47 -0800 | [diff] [blame] | 6445 | mutex_lock(&devlink_mutex); |
Jakub Kicinski | b473b0d | 2019-02-25 19:34:03 -0800 | [diff] [blame] | 6446 | devlink = netdev_to_devlink(dev); |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 6447 | if (!devlink || !devlink->ops->info_get) |
Jakub Kicinski | b473b0d | 2019-02-25 19:34:03 -0800 | [diff] [blame] | 6448 | goto unlock_list; |
| 6449 | |
| 6450 | mutex_lock(&devlink->lock); |
| 6451 | __devlink_compat_running_version(devlink, buf, len); |
| 6452 | mutex_unlock(&devlink->lock); |
| 6453 | unlock_list: |
Jakub Kicinski | ddb6e99 | 2019-01-31 10:50:47 -0800 | [diff] [blame] | 6454 | mutex_unlock(&devlink_mutex); |
Jakub Kicinski | 1b45ff6 | 2019-02-25 19:34:06 -0800 | [diff] [blame] | 6455 | |
| 6456 | rtnl_lock(); |
| 6457 | dev_put(dev); |
Jakub Kicinski | ddb6e99 | 2019-01-31 10:50:47 -0800 | [diff] [blame] | 6458 | } |
| 6459 | |
Jakub Kicinski | 4eceba1 | 2019-02-14 13:40:45 -0800 | [diff] [blame] | 6460 | int devlink_compat_flash_update(struct net_device *dev, const char *file_name) |
| 6461 | { |
Jakub Kicinski | 4eceba1 | 2019-02-14 13:40:45 -0800 | [diff] [blame] | 6462 | struct devlink *devlink; |
Jakub Kicinski | b473b0d | 2019-02-25 19:34:03 -0800 | [diff] [blame] | 6463 | int ret = -EOPNOTSUPP; |
Jakub Kicinski | 4eceba1 | 2019-02-14 13:40:45 -0800 | [diff] [blame] | 6464 | |
Jakub Kicinski | 1b45ff6 | 2019-02-25 19:34:06 -0800 | [diff] [blame] | 6465 | dev_hold(dev); |
| 6466 | rtnl_unlock(); |
| 6467 | |
Jakub Kicinski | 4eceba1 | 2019-02-14 13:40:45 -0800 | [diff] [blame] | 6468 | mutex_lock(&devlink_mutex); |
Jakub Kicinski | b473b0d | 2019-02-25 19:34:03 -0800 | [diff] [blame] | 6469 | devlink = netdev_to_devlink(dev); |
Jakub Kicinski | be6fe1d | 2019-02-25 19:34:07 -0800 | [diff] [blame] | 6470 | if (!devlink || !devlink->ops->flash_update) |
Jakub Kicinski | b473b0d | 2019-02-25 19:34:03 -0800 | [diff] [blame] | 6471 | goto unlock_list; |
Jakub Kicinski | 4eceba1 | 2019-02-14 13:40:45 -0800 | [diff] [blame] | 6472 | |
Jakub Kicinski | b473b0d | 2019-02-25 19:34:03 -0800 | [diff] [blame] | 6473 | mutex_lock(&devlink->lock); |
| 6474 | ret = devlink->ops->flash_update(devlink, file_name, NULL, NULL); |
| 6475 | mutex_unlock(&devlink->lock); |
| 6476 | unlock_list: |
Jakub Kicinski | 4eceba1 | 2019-02-14 13:40:45 -0800 | [diff] [blame] | 6477 | mutex_unlock(&devlink_mutex); |
Jakub Kicinski | 1b45ff6 | 2019-02-25 19:34:06 -0800 | [diff] [blame] | 6478 | |
| 6479 | rtnl_lock(); |
| 6480 | dev_put(dev); |
| 6481 | |
Jakub Kicinski | b473b0d | 2019-02-25 19:34:03 -0800 | [diff] [blame] | 6482 | return ret; |
Jakub Kicinski | 4eceba1 | 2019-02-14 13:40:45 -0800 | [diff] [blame] | 6483 | } |
| 6484 | |
Jakub Kicinski | f4b6bcc | 2019-02-25 19:34:02 -0800 | [diff] [blame] | 6485 | static int __init devlink_init(void) |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 6486 | { |
Johannes Berg | 489111e | 2016-10-24 14:40:03 +0200 | [diff] [blame] | 6487 | return genl_register_family(&devlink_nl_family); |
Jiri Pirko | bfcd3a4 | 2016-02-26 17:32:23 +0100 | [diff] [blame] | 6488 | } |
| 6489 | |
Jakub Kicinski | f4b6bcc | 2019-02-25 19:34:02 -0800 | [diff] [blame] | 6490 | subsys_initcall(devlink_init); |