1 /* 2 * include/net/devlink.h - Network physical device Netlink interface 3 * Copyright (c) 2016 Mellanox Technologies. All rights reserved. 4 * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 */ 11 #ifndef _NET_DEVLINK_H_ 12 #define _NET_DEVLINK_H_ 13 14 #include <linux/device.h> 15 #include <linux/slab.h> 16 #include <linux/gfp.h> 17 #include <linux/list.h> 18 #include <linux/netdevice.h> 19 #include <linux/spinlock.h> 20 #include <linux/workqueue.h> 21 #include <net/net_namespace.h> 22 #include <uapi/linux/devlink.h> 23 24 struct devlink_ops; 25 26 struct devlink { 27 struct list_head list; 28 struct list_head port_list; 29 struct list_head sb_list; 30 struct list_head dpipe_table_list; 31 struct list_head resource_list; 32 struct list_head param_list; 33 struct list_head region_list; 34 u32 snapshot_id; 35 struct list_head reporter_list; 36 struct mutex reporters_lock; /* protects reporter_list */ 37 struct devlink_dpipe_headers *dpipe_headers; 38 const struct devlink_ops *ops; 39 struct device *dev; 40 possible_net_t _net; 41 struct mutex lock; 42 char priv[0] __aligned(NETDEV_ALIGN); 43 }; 44 45 struct devlink_port_attrs { 46 u8 set:1, 47 split:1, 48 switch_port:1; 49 enum devlink_port_flavour flavour; 50 u32 port_number; /* same value as "split group" */ 51 u32 split_subport_number; 52 struct netdev_phys_item_id switch_id; 53 }; 54 55 struct devlink_port { 56 struct list_head list; 57 struct list_head param_list; 58 struct devlink *devlink; 59 unsigned index; 60 bool registered; 61 spinlock_t type_lock; /* Protects type and type_dev 62 * pointer consistency. 63 */ 64 enum devlink_port_type type; 65 enum devlink_port_type desired_type; 66 void *type_dev; 67 struct devlink_port_attrs attrs; 68 struct delayed_work type_warn_dw; 69 }; 70 71 struct devlink_sb_pool_info { 72 enum devlink_sb_pool_type pool_type; 73 u32 size; 74 enum devlink_sb_threshold_type threshold_type; 75 u32 cell_size; 76 }; 77 78 /** 79 * struct devlink_dpipe_field - dpipe field object 80 * @name: field name 81 * @id: index inside the headers field array 82 * @bitwidth: bitwidth 83 * @mapping_type: mapping type 84 */ 85 struct devlink_dpipe_field { 86 const char *name; 87 unsigned int id; 88 unsigned int bitwidth; 89 enum devlink_dpipe_field_mapping_type mapping_type; 90 }; 91 92 /** 93 * struct devlink_dpipe_header - dpipe header object 94 * @name: header name 95 * @id: index, global/local detrmined by global bit 96 * @fields: fields 97 * @fields_count: number of fields 98 * @global: indicates if header is shared like most protocol header 99 * or driver specific 100 */ 101 struct devlink_dpipe_header { 102 const char *name; 103 unsigned int id; 104 struct devlink_dpipe_field *fields; 105 unsigned int fields_count; 106 bool global; 107 }; 108 109 /** 110 * struct devlink_dpipe_match - represents match operation 111 * @type: type of match 112 * @header_index: header index (packets can have several headers of same 113 * type like in case of tunnels) 114 * @header: header 115 * @fieled_id: field index 116 */ 117 struct devlink_dpipe_match { 118 enum devlink_dpipe_match_type type; 119 unsigned int header_index; 120 struct devlink_dpipe_header *header; 121 unsigned int field_id; 122 }; 123 124 /** 125 * struct devlink_dpipe_action - represents action operation 126 * @type: type of action 127 * @header_index: header index (packets can have several headers of same 128 * type like in case of tunnels) 129 * @header: header 130 * @fieled_id: field index 131 */ 132 struct devlink_dpipe_action { 133 enum devlink_dpipe_action_type type; 134 unsigned int header_index; 135 struct devlink_dpipe_header *header; 136 unsigned int field_id; 137 }; 138 139 /** 140 * struct devlink_dpipe_value - represents value of match/action 141 * @action: action 142 * @match: match 143 * @mapping_value: in case the field has some mapping this value 144 * specified the mapping value 145 * @mapping_valid: specify if mapping value is valid 146 * @value_size: value size 147 * @value: value 148 * @mask: bit mask 149 */ 150 struct devlink_dpipe_value { 151 union { 152 struct devlink_dpipe_action *action; 153 struct devlink_dpipe_match *match; 154 }; 155 unsigned int mapping_value; 156 bool mapping_valid; 157 unsigned int value_size; 158 void *value; 159 void *mask; 160 }; 161 162 /** 163 * struct devlink_dpipe_entry - table entry object 164 * @index: index of the entry in the table 165 * @match_values: match values 166 * @matche_values_count: count of matches tuples 167 * @action_values: actions values 168 * @action_values_count: count of actions values 169 * @counter: value of counter 170 * @counter_valid: Specify if value is valid from hardware 171 */ 172 struct devlink_dpipe_entry { 173 u64 index; 174 struct devlink_dpipe_value *match_values; 175 unsigned int match_values_count; 176 struct devlink_dpipe_value *action_values; 177 unsigned int action_values_count; 178 u64 counter; 179 bool counter_valid; 180 }; 181 182 /** 183 * struct devlink_dpipe_dump_ctx - context provided to driver in order 184 * to dump 185 * @info: info 186 * @cmd: devlink command 187 * @skb: skb 188 * @nest: top attribute 189 * @hdr: hdr 190 */ 191 struct devlink_dpipe_dump_ctx { 192 struct genl_info *info; 193 enum devlink_command cmd; 194 struct sk_buff *skb; 195 struct nlattr *nest; 196 void *hdr; 197 }; 198 199 struct devlink_dpipe_table_ops; 200 201 /** 202 * struct devlink_dpipe_table - table object 203 * @priv: private 204 * @name: table name 205 * @counters_enabled: indicates if counters are active 206 * @counter_control_extern: indicates if counter control is in dpipe or 207 * external tool 208 * @resource_valid: Indicate that the resource id is valid 209 * @resource_id: relative resource this table is related to 210 * @resource_units: number of resource's unit consumed per table's entry 211 * @table_ops: table operations 212 * @rcu: rcu 213 */ 214 struct devlink_dpipe_table { 215 void *priv; 216 struct list_head list; 217 const char *name; 218 bool counters_enabled; 219 bool counter_control_extern; 220 bool resource_valid; 221 u64 resource_id; 222 u64 resource_units; 223 struct devlink_dpipe_table_ops *table_ops; 224 struct rcu_head rcu; 225 }; 226 227 /** 228 * struct devlink_dpipe_table_ops - dpipe_table ops 229 * @actions_dump - dumps all tables actions 230 * @matches_dump - dumps all tables matches 231 * @entries_dump - dumps all active entries in the table 232 * @counters_set_update - when changing the counter status hardware sync 233 * maybe needed to allocate/free counter related 234 * resources 235 * @size_get - get size 236 */ 237 struct devlink_dpipe_table_ops { 238 int (*actions_dump)(void *priv, struct sk_buff *skb); 239 int (*matches_dump)(void *priv, struct sk_buff *skb); 240 int (*entries_dump)(void *priv, bool counters_enabled, 241 struct devlink_dpipe_dump_ctx *dump_ctx); 242 int (*counters_set_update)(void *priv, bool enable); 243 u64 (*size_get)(void *priv); 244 }; 245 246 /** 247 * struct devlink_dpipe_headers - dpipe headers 248 * @headers - header array can be shared (global bit) or driver specific 249 * @headers_count - count of headers 250 */ 251 struct devlink_dpipe_headers { 252 struct devlink_dpipe_header **headers; 253 unsigned int headers_count; 254 }; 255 256 /** 257 * struct devlink_resource_size_params - resource's size parameters 258 * @size_min: minimum size which can be set 259 * @size_max: maximum size which can be set 260 * @size_granularity: size granularity 261 * @size_unit: resource's basic unit 262 */ 263 struct devlink_resource_size_params { 264 u64 size_min; 265 u64 size_max; 266 u64 size_granularity; 267 enum devlink_resource_unit unit; 268 }; 269 270 static inline void 271 devlink_resource_size_params_init(struct devlink_resource_size_params *size_params, 272 u64 size_min, u64 size_max, 273 u64 size_granularity, 274 enum devlink_resource_unit unit) 275 { 276 size_params->size_min = size_min; 277 size_params->size_max = size_max; 278 size_params->size_granularity = size_granularity; 279 size_params->unit = unit; 280 } 281 282 typedef u64 devlink_resource_occ_get_t(void *priv); 283 284 /** 285 * struct devlink_resource - devlink resource 286 * @name: name of the resource 287 * @id: id, per devlink instance 288 * @size: size of the resource 289 * @size_new: updated size of the resource, reload is needed 290 * @size_valid: valid in case the total size of the resource is valid 291 * including its children 292 * @parent: parent resource 293 * @size_params: size parameters 294 * @list: parent list 295 * @resource_list: list of child resources 296 */ 297 struct devlink_resource { 298 const char *name; 299 u64 id; 300 u64 size; 301 u64 size_new; 302 bool size_valid; 303 struct devlink_resource *parent; 304 struct devlink_resource_size_params size_params; 305 struct list_head list; 306 struct list_head resource_list; 307 devlink_resource_occ_get_t *occ_get; 308 void *occ_get_priv; 309 }; 310 311 #define DEVLINK_RESOURCE_ID_PARENT_TOP 0 312 313 #define __DEVLINK_PARAM_MAX_STRING_VALUE 32 314 enum devlink_param_type { 315 DEVLINK_PARAM_TYPE_U8, 316 DEVLINK_PARAM_TYPE_U16, 317 DEVLINK_PARAM_TYPE_U32, 318 DEVLINK_PARAM_TYPE_STRING, 319 DEVLINK_PARAM_TYPE_BOOL, 320 }; 321 322 union devlink_param_value { 323 u8 vu8; 324 u16 vu16; 325 u32 vu32; 326 char vstr[__DEVLINK_PARAM_MAX_STRING_VALUE]; 327 bool vbool; 328 }; 329 330 struct devlink_param_gset_ctx { 331 union devlink_param_value val; 332 enum devlink_param_cmode cmode; 333 }; 334 335 /** 336 * struct devlink_param - devlink configuration parameter data 337 * @name: name of the parameter 338 * @generic: indicates if the parameter is generic or driver specific 339 * @type: parameter type 340 * @supported_cmodes: bitmap of supported configuration modes 341 * @get: get parameter value, used for runtime and permanent 342 * configuration modes 343 * @set: set parameter value, used for runtime and permanent 344 * configuration modes 345 * @validate: validate input value is applicable (within value range, etc.) 346 * 347 * This struct should be used by the driver to fill the data for 348 * a parameter it registers. 349 */ 350 struct devlink_param { 351 u32 id; 352 const char *name; 353 bool generic; 354 enum devlink_param_type type; 355 unsigned long supported_cmodes; 356 int (*get)(struct devlink *devlink, u32 id, 357 struct devlink_param_gset_ctx *ctx); 358 int (*set)(struct devlink *devlink, u32 id, 359 struct devlink_param_gset_ctx *ctx); 360 int (*validate)(struct devlink *devlink, u32 id, 361 union devlink_param_value val, 362 struct netlink_ext_ack *extack); 363 }; 364 365 struct devlink_param_item { 366 struct list_head list; 367 const struct devlink_param *param; 368 union devlink_param_value driverinit_value; 369 bool driverinit_value_valid; 370 bool published; 371 }; 372 373 enum devlink_param_generic_id { 374 DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, 375 DEVLINK_PARAM_GENERIC_ID_MAX_MACS, 376 DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, 377 DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, 378 DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, 379 DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, 380 DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, 381 DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, 382 383 /* add new param generic ids above here*/ 384 __DEVLINK_PARAM_GENERIC_ID_MAX, 385 DEVLINK_PARAM_GENERIC_ID_MAX = __DEVLINK_PARAM_GENERIC_ID_MAX - 1, 386 }; 387 388 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME "internal_error_reset" 389 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL 390 391 #define DEVLINK_PARAM_GENERIC_MAX_MACS_NAME "max_macs" 392 #define DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE DEVLINK_PARAM_TYPE_U32 393 394 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME "enable_sriov" 395 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE DEVLINK_PARAM_TYPE_BOOL 396 397 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME "region_snapshot_enable" 398 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE DEVLINK_PARAM_TYPE_BOOL 399 400 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME "ignore_ari" 401 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE DEVLINK_PARAM_TYPE_BOOL 402 403 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME "msix_vec_per_pf_max" 404 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE DEVLINK_PARAM_TYPE_U32 405 406 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME "msix_vec_per_pf_min" 407 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE DEVLINK_PARAM_TYPE_U32 408 409 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME "fw_load_policy" 410 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE DEVLINK_PARAM_TYPE_U8 411 412 #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate) \ 413 { \ 414 .id = DEVLINK_PARAM_GENERIC_ID_##_id, \ 415 .name = DEVLINK_PARAM_GENERIC_##_id##_NAME, \ 416 .type = DEVLINK_PARAM_GENERIC_##_id##_TYPE, \ 417 .generic = true, \ 418 .supported_cmodes = _cmodes, \ 419 .get = _get, \ 420 .set = _set, \ 421 .validate = _validate, \ 422 } 423 424 #define DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, _get, _set, _validate) \ 425 { \ 426 .id = _id, \ 427 .name = _name, \ 428 .type = _type, \ 429 .supported_cmodes = _cmodes, \ 430 .get = _get, \ 431 .set = _set, \ 432 .validate = _validate, \ 433 } 434 435 /* Part number, identifier of board design */ 436 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_ID "board.id" 437 /* Revision of board design */ 438 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_REV "board.rev" 439 /* Maker of the board */ 440 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE "board.manufacture" 441 442 /* Control processor FW version */ 443 #define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT "fw.mgmt" 444 /* Data path microcode controlling high-speed packet processing */ 445 #define DEVLINK_INFO_VERSION_GENERIC_FW_APP "fw.app" 446 /* UNDI software version */ 447 #define DEVLINK_INFO_VERSION_GENERIC_FW_UNDI "fw.undi" 448 /* NCSI support/handler version */ 449 #define DEVLINK_INFO_VERSION_GENERIC_FW_NCSI "fw.ncsi" 450 451 struct devlink_region; 452 struct devlink_info_req; 453 454 typedef void devlink_snapshot_data_dest_t(const void *data); 455 456 struct devlink_fmsg; 457 struct devlink_health_reporter; 458 459 enum devlink_health_reporter_state { 460 DEVLINK_HEALTH_REPORTER_STATE_HEALTHY, 461 DEVLINK_HEALTH_REPORTER_STATE_ERROR, 462 }; 463 464 /** 465 * struct devlink_health_reporter_ops - Reporter operations 466 * @name: reporter name 467 * @recover: callback to recover from reported error 468 * if priv_ctx is NULL, run a full recover 469 * @dump: callback to dump an object 470 * if priv_ctx is NULL, run a full dump 471 * @diagnose: callback to diagnose the current status 472 */ 473 474 struct devlink_health_reporter_ops { 475 char *name; 476 int (*recover)(struct devlink_health_reporter *reporter, 477 void *priv_ctx); 478 int (*dump)(struct devlink_health_reporter *reporter, 479 struct devlink_fmsg *fmsg, void *priv_ctx); 480 int (*diagnose)(struct devlink_health_reporter *reporter, 481 struct devlink_fmsg *fmsg); 482 }; 483 484 struct devlink_ops { 485 int (*reload)(struct devlink *devlink, struct netlink_ext_ack *extack); 486 int (*port_type_set)(struct devlink_port *devlink_port, 487 enum devlink_port_type port_type); 488 int (*port_split)(struct devlink *devlink, unsigned int port_index, 489 unsigned int count, struct netlink_ext_ack *extack); 490 int (*port_unsplit)(struct devlink *devlink, unsigned int port_index, 491 struct netlink_ext_ack *extack); 492 int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index, 493 u16 pool_index, 494 struct devlink_sb_pool_info *pool_info); 495 int (*sb_pool_set)(struct devlink *devlink, unsigned int sb_index, 496 u16 pool_index, u32 size, 497 enum devlink_sb_threshold_type threshold_type, 498 struct netlink_ext_ack *extack); 499 int (*sb_port_pool_get)(struct devlink_port *devlink_port, 500 unsigned int sb_index, u16 pool_index, 501 u32 *p_threshold); 502 int (*sb_port_pool_set)(struct devlink_port *devlink_port, 503 unsigned int sb_index, u16 pool_index, 504 u32 threshold, struct netlink_ext_ack *extack); 505 int (*sb_tc_pool_bind_get)(struct devlink_port *devlink_port, 506 unsigned int sb_index, 507 u16 tc_index, 508 enum devlink_sb_pool_type pool_type, 509 u16 *p_pool_index, u32 *p_threshold); 510 int (*sb_tc_pool_bind_set)(struct devlink_port *devlink_port, 511 unsigned int sb_index, 512 u16 tc_index, 513 enum devlink_sb_pool_type pool_type, 514 u16 pool_index, u32 threshold, 515 struct netlink_ext_ack *extack); 516 int (*sb_occ_snapshot)(struct devlink *devlink, 517 unsigned int sb_index); 518 int (*sb_occ_max_clear)(struct devlink *devlink, 519 unsigned int sb_index); 520 int (*sb_occ_port_pool_get)(struct devlink_port *devlink_port, 521 unsigned int sb_index, u16 pool_index, 522 u32 *p_cur, u32 *p_max); 523 int (*sb_occ_tc_port_bind_get)(struct devlink_port *devlink_port, 524 unsigned int sb_index, 525 u16 tc_index, 526 enum devlink_sb_pool_type pool_type, 527 u32 *p_cur, u32 *p_max); 528 529 int (*eswitch_mode_get)(struct devlink *devlink, u16 *p_mode); 530 int (*eswitch_mode_set)(struct devlink *devlink, u16 mode, 531 struct netlink_ext_ack *extack); 532 int (*eswitch_inline_mode_get)(struct devlink *devlink, u8 *p_inline_mode); 533 int (*eswitch_inline_mode_set)(struct devlink *devlink, u8 inline_mode, 534 struct netlink_ext_ack *extack); 535 int (*eswitch_encap_mode_get)(struct devlink *devlink, u8 *p_encap_mode); 536 int (*eswitch_encap_mode_set)(struct devlink *devlink, u8 encap_mode, 537 struct netlink_ext_ack *extack); 538 int (*info_get)(struct devlink *devlink, struct devlink_info_req *req, 539 struct netlink_ext_ack *extack); 540 int (*flash_update)(struct devlink *devlink, const char *file_name, 541 const char *component, 542 struct netlink_ext_ack *extack); 543 }; 544 545 static inline void *devlink_priv(struct devlink *devlink) 546 { 547 BUG_ON(!devlink); 548 return &devlink->priv; 549 } 550 551 static inline struct devlink *priv_to_devlink(void *priv) 552 { 553 BUG_ON(!priv); 554 return container_of(priv, struct devlink, priv); 555 } 556 557 static inline struct devlink_port * 558 netdev_to_devlink_port(struct net_device *dev) 559 { 560 if (dev->netdev_ops->ndo_get_devlink_port) 561 return dev->netdev_ops->ndo_get_devlink_port(dev); 562 return NULL; 563 } 564 565 static inline struct devlink *netdev_to_devlink(struct net_device *dev) 566 { 567 struct devlink_port *devlink_port = netdev_to_devlink_port(dev); 568 569 if (devlink_port) 570 return devlink_port->devlink; 571 return NULL; 572 } 573 574 struct ib_device; 575 576 struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size); 577 int devlink_register(struct devlink *devlink, struct device *dev); 578 void devlink_unregister(struct devlink *devlink); 579 void devlink_free(struct devlink *devlink); 580 int devlink_port_register(struct devlink *devlink, 581 struct devlink_port *devlink_port, 582 unsigned int port_index); 583 void devlink_port_unregister(struct devlink_port *devlink_port); 584 void devlink_port_type_eth_set(struct devlink_port *devlink_port, 585 struct net_device *netdev); 586 void devlink_port_type_ib_set(struct devlink_port *devlink_port, 587 struct ib_device *ibdev); 588 void devlink_port_type_clear(struct devlink_port *devlink_port); 589 void devlink_port_attrs_set(struct devlink_port *devlink_port, 590 enum devlink_port_flavour flavour, 591 u32 port_number, bool split, 592 u32 split_subport_number, 593 const unsigned char *switch_id, 594 unsigned char switch_id_len); 595 int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, 596 u32 size, u16 ingress_pools_count, 597 u16 egress_pools_count, u16 ingress_tc_count, 598 u16 egress_tc_count); 599 void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index); 600 int devlink_dpipe_table_register(struct devlink *devlink, 601 const char *table_name, 602 struct devlink_dpipe_table_ops *table_ops, 603 void *priv, bool counter_control_extern); 604 void devlink_dpipe_table_unregister(struct devlink *devlink, 605 const char *table_name); 606 int devlink_dpipe_headers_register(struct devlink *devlink, 607 struct devlink_dpipe_headers *dpipe_headers); 608 void devlink_dpipe_headers_unregister(struct devlink *devlink); 609 bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, 610 const char *table_name); 611 int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx); 612 int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, 613 struct devlink_dpipe_entry *entry); 614 int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx); 615 void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry); 616 int devlink_dpipe_action_put(struct sk_buff *skb, 617 struct devlink_dpipe_action *action); 618 int devlink_dpipe_match_put(struct sk_buff *skb, 619 struct devlink_dpipe_match *match); 620 extern struct devlink_dpipe_header devlink_dpipe_header_ethernet; 621 extern struct devlink_dpipe_header devlink_dpipe_header_ipv4; 622 extern struct devlink_dpipe_header devlink_dpipe_header_ipv6; 623 624 int devlink_resource_register(struct devlink *devlink, 625 const char *resource_name, 626 u64 resource_size, 627 u64 resource_id, 628 u64 parent_resource_id, 629 const struct devlink_resource_size_params *size_params); 630 void devlink_resources_unregister(struct devlink *devlink, 631 struct devlink_resource *resource); 632 int devlink_resource_size_get(struct devlink *devlink, 633 u64 resource_id, 634 u64 *p_resource_size); 635 int devlink_dpipe_table_resource_set(struct devlink *devlink, 636 const char *table_name, u64 resource_id, 637 u64 resource_units); 638 void devlink_resource_occ_get_register(struct devlink *devlink, 639 u64 resource_id, 640 devlink_resource_occ_get_t *occ_get, 641 void *occ_get_priv); 642 void devlink_resource_occ_get_unregister(struct devlink *devlink, 643 u64 resource_id); 644 int devlink_params_register(struct devlink *devlink, 645 const struct devlink_param *params, 646 size_t params_count); 647 void devlink_params_unregister(struct devlink *devlink, 648 const struct devlink_param *params, 649 size_t params_count); 650 void devlink_params_publish(struct devlink *devlink); 651 void devlink_params_unpublish(struct devlink *devlink); 652 int devlink_port_params_register(struct devlink_port *devlink_port, 653 const struct devlink_param *params, 654 size_t params_count); 655 void devlink_port_params_unregister(struct devlink_port *devlink_port, 656 const struct devlink_param *params, 657 size_t params_count); 658 int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, 659 union devlink_param_value *init_val); 660 int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, 661 union devlink_param_value init_val); 662 int 663 devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port, 664 u32 param_id, 665 union devlink_param_value *init_val); 666 int devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port, 667 u32 param_id, 668 union devlink_param_value init_val); 669 void devlink_param_value_changed(struct devlink *devlink, u32 param_id); 670 void devlink_port_param_value_changed(struct devlink_port *devlink_port, 671 u32 param_id); 672 void devlink_param_value_str_fill(union devlink_param_value *dst_val, 673 const char *src); 674 struct devlink_region *devlink_region_create(struct devlink *devlink, 675 const char *region_name, 676 u32 region_max_snapshots, 677 u64 region_size); 678 void devlink_region_destroy(struct devlink_region *region); 679 u32 devlink_region_shapshot_id_get(struct devlink *devlink); 680 int devlink_region_snapshot_create(struct devlink_region *region, u64 data_len, 681 u8 *data, u32 snapshot_id, 682 devlink_snapshot_data_dest_t *data_destructor); 683 int devlink_info_serial_number_put(struct devlink_info_req *req, 684 const char *sn); 685 int devlink_info_driver_name_put(struct devlink_info_req *req, 686 const char *name); 687 int devlink_info_version_fixed_put(struct devlink_info_req *req, 688 const char *version_name, 689 const char *version_value); 690 int devlink_info_version_stored_put(struct devlink_info_req *req, 691 const char *version_name, 692 const char *version_value); 693 int devlink_info_version_running_put(struct devlink_info_req *req, 694 const char *version_name, 695 const char *version_value); 696 697 int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg); 698 int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg); 699 700 int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name); 701 int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg); 702 703 int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg, 704 const char *name); 705 int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg); 706 707 int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value); 708 int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value); 709 int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value); 710 int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value); 711 int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value); 712 int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value, 713 u16 value_len); 714 715 int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name, 716 bool value); 717 int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name, 718 u8 value); 719 int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name, 720 u32 value); 721 int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name, 722 u64 value); 723 int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name, 724 const char *value); 725 int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name, 726 const void *value, u16 value_len); 727 728 struct devlink_health_reporter * 729 devlink_health_reporter_create(struct devlink *devlink, 730 const struct devlink_health_reporter_ops *ops, 731 u64 graceful_period, bool auto_recover, 732 void *priv); 733 void 734 devlink_health_reporter_destroy(struct devlink_health_reporter *reporter); 735 736 void * 737 devlink_health_reporter_priv(struct devlink_health_reporter *reporter); 738 int devlink_health_report(struct devlink_health_reporter *reporter, 739 const char *msg, void *priv_ctx); 740 void 741 devlink_health_reporter_state_update(struct devlink_health_reporter *reporter, 742 enum devlink_health_reporter_state state); 743 744 #if IS_ENABLED(CONFIG_NET_DEVLINK) 745 746 void devlink_compat_running_version(struct net_device *dev, 747 char *buf, size_t len); 748 int devlink_compat_flash_update(struct net_device *dev, const char *file_name); 749 int devlink_compat_phys_port_name_get(struct net_device *dev, 750 char *name, size_t len); 751 int devlink_compat_switch_id_get(struct net_device *dev, 752 struct netdev_phys_item_id *ppid); 753 754 #else 755 756 static inline void 757 devlink_compat_running_version(struct net_device *dev, char *buf, size_t len) 758 { 759 } 760 761 static inline int 762 devlink_compat_flash_update(struct net_device *dev, const char *file_name) 763 { 764 return -EOPNOTSUPP; 765 } 766 767 static inline int 768 devlink_compat_phys_port_name_get(struct net_device *dev, 769 char *name, size_t len) 770 { 771 return -EOPNOTSUPP; 772 } 773 774 static inline int 775 devlink_compat_switch_id_get(struct net_device *dev, 776 struct netdev_phys_item_id *ppid) 777 { 778 return -EOPNOTSUPP; 779 } 780 781 #endif 782 783 #endif /* _NET_DEVLINK_H_ */ 784