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 <net/net_namespace.h> 20 #include <uapi/linux/devlink.h> 21 22 struct devlink_ops; 23 24 struct devlink { 25 struct list_head list; 26 struct list_head port_list; 27 struct list_head sb_list; 28 struct list_head dpipe_table_list; 29 struct list_head resource_list; 30 struct list_head param_list; 31 struct list_head region_list; 32 u32 snapshot_id; 33 struct list_head reporter_list; 34 struct devlink_dpipe_headers *dpipe_headers; 35 const struct devlink_ops *ops; 36 struct device *dev; 37 possible_net_t _net; 38 struct mutex lock; 39 char priv[0] __aligned(NETDEV_ALIGN); 40 }; 41 42 struct devlink_port_attrs { 43 bool set; 44 enum devlink_port_flavour flavour; 45 u32 port_number; /* same value as "split group" */ 46 bool split; 47 u32 split_subport_number; 48 }; 49 50 struct devlink_port { 51 struct list_head list; 52 struct list_head param_list; 53 struct devlink *devlink; 54 unsigned index; 55 bool registered; 56 enum devlink_port_type type; 57 enum devlink_port_type desired_type; 58 void *type_dev; 59 struct devlink_port_attrs attrs; 60 }; 61 62 struct devlink_sb_pool_info { 63 enum devlink_sb_pool_type pool_type; 64 u32 size; 65 enum devlink_sb_threshold_type threshold_type; 66 u32 cell_size; 67 }; 68 69 /** 70 * struct devlink_dpipe_field - dpipe field object 71 * @name: field name 72 * @id: index inside the headers field array 73 * @bitwidth: bitwidth 74 * @mapping_type: mapping type 75 */ 76 struct devlink_dpipe_field { 77 const char *name; 78 unsigned int id; 79 unsigned int bitwidth; 80 enum devlink_dpipe_field_mapping_type mapping_type; 81 }; 82 83 /** 84 * struct devlink_dpipe_header - dpipe header object 85 * @name: header name 86 * @id: index, global/local detrmined by global bit 87 * @fields: fields 88 * @fields_count: number of fields 89 * @global: indicates if header is shared like most protocol header 90 * or driver specific 91 */ 92 struct devlink_dpipe_header { 93 const char *name; 94 unsigned int id; 95 struct devlink_dpipe_field *fields; 96 unsigned int fields_count; 97 bool global; 98 }; 99 100 /** 101 * struct devlink_dpipe_match - represents match operation 102 * @type: type of match 103 * @header_index: header index (packets can have several headers of same 104 * type like in case of tunnels) 105 * @header: header 106 * @fieled_id: field index 107 */ 108 struct devlink_dpipe_match { 109 enum devlink_dpipe_match_type type; 110 unsigned int header_index; 111 struct devlink_dpipe_header *header; 112 unsigned int field_id; 113 }; 114 115 /** 116 * struct devlink_dpipe_action - represents action operation 117 * @type: type of action 118 * @header_index: header index (packets can have several headers of same 119 * type like in case of tunnels) 120 * @header: header 121 * @fieled_id: field index 122 */ 123 struct devlink_dpipe_action { 124 enum devlink_dpipe_action_type type; 125 unsigned int header_index; 126 struct devlink_dpipe_header *header; 127 unsigned int field_id; 128 }; 129 130 /** 131 * struct devlink_dpipe_value - represents value of match/action 132 * @action: action 133 * @match: match 134 * @mapping_value: in case the field has some mapping this value 135 * specified the mapping value 136 * @mapping_valid: specify if mapping value is valid 137 * @value_size: value size 138 * @value: value 139 * @mask: bit mask 140 */ 141 struct devlink_dpipe_value { 142 union { 143 struct devlink_dpipe_action *action; 144 struct devlink_dpipe_match *match; 145 }; 146 unsigned int mapping_value; 147 bool mapping_valid; 148 unsigned int value_size; 149 void *value; 150 void *mask; 151 }; 152 153 /** 154 * struct devlink_dpipe_entry - table entry object 155 * @index: index of the entry in the table 156 * @match_values: match values 157 * @matche_values_count: count of matches tuples 158 * @action_values: actions values 159 * @action_values_count: count of actions values 160 * @counter: value of counter 161 * @counter_valid: Specify if value is valid from hardware 162 */ 163 struct devlink_dpipe_entry { 164 u64 index; 165 struct devlink_dpipe_value *match_values; 166 unsigned int match_values_count; 167 struct devlink_dpipe_value *action_values; 168 unsigned int action_values_count; 169 u64 counter; 170 bool counter_valid; 171 }; 172 173 /** 174 * struct devlink_dpipe_dump_ctx - context provided to driver in order 175 * to dump 176 * @info: info 177 * @cmd: devlink command 178 * @skb: skb 179 * @nest: top attribute 180 * @hdr: hdr 181 */ 182 struct devlink_dpipe_dump_ctx { 183 struct genl_info *info; 184 enum devlink_command cmd; 185 struct sk_buff *skb; 186 struct nlattr *nest; 187 void *hdr; 188 }; 189 190 struct devlink_dpipe_table_ops; 191 192 /** 193 * struct devlink_dpipe_table - table object 194 * @priv: private 195 * @name: table name 196 * @counters_enabled: indicates if counters are active 197 * @counter_control_extern: indicates if counter control is in dpipe or 198 * external tool 199 * @resource_valid: Indicate that the resource id is valid 200 * @resource_id: relative resource this table is related to 201 * @resource_units: number of resource's unit consumed per table's entry 202 * @table_ops: table operations 203 * @rcu: rcu 204 */ 205 struct devlink_dpipe_table { 206 void *priv; 207 struct list_head list; 208 const char *name; 209 bool counters_enabled; 210 bool counter_control_extern; 211 bool resource_valid; 212 u64 resource_id; 213 u64 resource_units; 214 struct devlink_dpipe_table_ops *table_ops; 215 struct rcu_head rcu; 216 }; 217 218 /** 219 * struct devlink_dpipe_table_ops - dpipe_table ops 220 * @actions_dump - dumps all tables actions 221 * @matches_dump - dumps all tables matches 222 * @entries_dump - dumps all active entries in the table 223 * @counters_set_update - when changing the counter status hardware sync 224 * maybe needed to allocate/free counter related 225 * resources 226 * @size_get - get size 227 */ 228 struct devlink_dpipe_table_ops { 229 int (*actions_dump)(void *priv, struct sk_buff *skb); 230 int (*matches_dump)(void *priv, struct sk_buff *skb); 231 int (*entries_dump)(void *priv, bool counters_enabled, 232 struct devlink_dpipe_dump_ctx *dump_ctx); 233 int (*counters_set_update)(void *priv, bool enable); 234 u64 (*size_get)(void *priv); 235 }; 236 237 /** 238 * struct devlink_dpipe_headers - dpipe headers 239 * @headers - header array can be shared (global bit) or driver specific 240 * @headers_count - count of headers 241 */ 242 struct devlink_dpipe_headers { 243 struct devlink_dpipe_header **headers; 244 unsigned int headers_count; 245 }; 246 247 /** 248 * struct devlink_resource_size_params - resource's size parameters 249 * @size_min: minimum size which can be set 250 * @size_max: maximum size which can be set 251 * @size_granularity: size granularity 252 * @size_unit: resource's basic unit 253 */ 254 struct devlink_resource_size_params { 255 u64 size_min; 256 u64 size_max; 257 u64 size_granularity; 258 enum devlink_resource_unit unit; 259 }; 260 261 static inline void 262 devlink_resource_size_params_init(struct devlink_resource_size_params *size_params, 263 u64 size_min, u64 size_max, 264 u64 size_granularity, 265 enum devlink_resource_unit unit) 266 { 267 size_params->size_min = size_min; 268 size_params->size_max = size_max; 269 size_params->size_granularity = size_granularity; 270 size_params->unit = unit; 271 } 272 273 typedef u64 devlink_resource_occ_get_t(void *priv); 274 275 /** 276 * struct devlink_resource - devlink resource 277 * @name: name of the resource 278 * @id: id, per devlink instance 279 * @size: size of the resource 280 * @size_new: updated size of the resource, reload is needed 281 * @size_valid: valid in case the total size of the resource is valid 282 * including its children 283 * @parent: parent resource 284 * @size_params: size parameters 285 * @list: parent list 286 * @resource_list: list of child resources 287 */ 288 struct devlink_resource { 289 const char *name; 290 u64 id; 291 u64 size; 292 u64 size_new; 293 bool size_valid; 294 struct devlink_resource *parent; 295 struct devlink_resource_size_params size_params; 296 struct list_head list; 297 struct list_head resource_list; 298 devlink_resource_occ_get_t *occ_get; 299 void *occ_get_priv; 300 }; 301 302 #define DEVLINK_RESOURCE_ID_PARENT_TOP 0 303 304 #define __DEVLINK_PARAM_MAX_STRING_VALUE 32 305 enum devlink_param_type { 306 DEVLINK_PARAM_TYPE_U8, 307 DEVLINK_PARAM_TYPE_U16, 308 DEVLINK_PARAM_TYPE_U32, 309 DEVLINK_PARAM_TYPE_STRING, 310 DEVLINK_PARAM_TYPE_BOOL, 311 }; 312 313 union devlink_param_value { 314 u8 vu8; 315 u16 vu16; 316 u32 vu32; 317 char vstr[__DEVLINK_PARAM_MAX_STRING_VALUE]; 318 bool vbool; 319 }; 320 321 struct devlink_param_gset_ctx { 322 union devlink_param_value val; 323 enum devlink_param_cmode cmode; 324 }; 325 326 /** 327 * struct devlink_param - devlink configuration parameter data 328 * @name: name of the parameter 329 * @generic: indicates if the parameter is generic or driver specific 330 * @type: parameter type 331 * @supported_cmodes: bitmap of supported configuration modes 332 * @get: get parameter value, used for runtime and permanent 333 * configuration modes 334 * @set: set parameter value, used for runtime and permanent 335 * configuration modes 336 * @validate: validate input value is applicable (within value range, etc.) 337 * 338 * This struct should be used by the driver to fill the data for 339 * a parameter it registers. 340 */ 341 struct devlink_param { 342 u32 id; 343 const char *name; 344 bool generic; 345 enum devlink_param_type type; 346 unsigned long supported_cmodes; 347 int (*get)(struct devlink *devlink, u32 id, 348 struct devlink_param_gset_ctx *ctx); 349 int (*set)(struct devlink *devlink, u32 id, 350 struct devlink_param_gset_ctx *ctx); 351 int (*validate)(struct devlink *devlink, u32 id, 352 union devlink_param_value val, 353 struct netlink_ext_ack *extack); 354 }; 355 356 struct devlink_param_item { 357 struct list_head list; 358 const struct devlink_param *param; 359 union devlink_param_value driverinit_value; 360 bool driverinit_value_valid; 361 bool published; 362 }; 363 364 enum devlink_param_generic_id { 365 DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, 366 DEVLINK_PARAM_GENERIC_ID_MAX_MACS, 367 DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, 368 DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, 369 DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, 370 DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, 371 DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, 372 DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, 373 374 /* add new param generic ids above here*/ 375 __DEVLINK_PARAM_GENERIC_ID_MAX, 376 DEVLINK_PARAM_GENERIC_ID_MAX = __DEVLINK_PARAM_GENERIC_ID_MAX - 1, 377 }; 378 379 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME "internal_error_reset" 380 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL 381 382 #define DEVLINK_PARAM_GENERIC_MAX_MACS_NAME "max_macs" 383 #define DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE DEVLINK_PARAM_TYPE_U32 384 385 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME "enable_sriov" 386 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE DEVLINK_PARAM_TYPE_BOOL 387 388 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME "region_snapshot_enable" 389 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE DEVLINK_PARAM_TYPE_BOOL 390 391 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME "ignore_ari" 392 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE DEVLINK_PARAM_TYPE_BOOL 393 394 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME "msix_vec_per_pf_max" 395 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE DEVLINK_PARAM_TYPE_U32 396 397 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME "msix_vec_per_pf_min" 398 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE DEVLINK_PARAM_TYPE_U32 399 400 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME "fw_load_policy" 401 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE DEVLINK_PARAM_TYPE_U8 402 403 #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate) \ 404 { \ 405 .id = DEVLINK_PARAM_GENERIC_ID_##_id, \ 406 .name = DEVLINK_PARAM_GENERIC_##_id##_NAME, \ 407 .type = DEVLINK_PARAM_GENERIC_##_id##_TYPE, \ 408 .generic = true, \ 409 .supported_cmodes = _cmodes, \ 410 .get = _get, \ 411 .set = _set, \ 412 .validate = _validate, \ 413 } 414 415 #define DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, _get, _set, _validate) \ 416 { \ 417 .id = _id, \ 418 .name = _name, \ 419 .type = _type, \ 420 .supported_cmodes = _cmodes, \ 421 .get = _get, \ 422 .set = _set, \ 423 .validate = _validate, \ 424 } 425 426 /* Part number, identifier of board design */ 427 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_ID "board.id" 428 /* Revision of board design */ 429 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_REV "board.rev" 430 /* Maker of the board */ 431 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE "board.manufacture" 432 433 /* Control processor FW version */ 434 #define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT "fw.mgmt" 435 /* Data path microcode controlling high-speed packet processing */ 436 #define DEVLINK_INFO_VERSION_GENERIC_FW_APP "fw.app" 437 /* UNDI software version */ 438 #define DEVLINK_INFO_VERSION_GENERIC_FW_UNDI "fw.undi" 439 /* NCSI support/handler version */ 440 #define DEVLINK_INFO_VERSION_GENERIC_FW_NCSI "fw.ncsi" 441 442 struct devlink_region; 443 struct devlink_info_req; 444 445 typedef void devlink_snapshot_data_dest_t(const void *data); 446 447 struct devlink_fmsg; 448 struct devlink_health_reporter; 449 450 /** 451 * struct devlink_health_reporter_ops - Reporter operations 452 * @name: reporter name 453 * @recover: callback to recover from reported error 454 * if priv_ctx is NULL, run a full recover 455 * @dump: callback to dump an object 456 * if priv_ctx is NULL, run a full dump 457 * @diagnose: callback to diagnose the current status 458 */ 459 460 struct devlink_health_reporter_ops { 461 char *name; 462 int (*recover)(struct devlink_health_reporter *reporter, 463 void *priv_ctx); 464 int (*dump)(struct devlink_health_reporter *reporter, 465 struct devlink_fmsg *fmsg, void *priv_ctx); 466 int (*diagnose)(struct devlink_health_reporter *reporter, 467 struct devlink_fmsg *fmsg); 468 }; 469 470 struct devlink_ops { 471 int (*reload)(struct devlink *devlink, struct netlink_ext_ack *extack); 472 int (*port_type_set)(struct devlink_port *devlink_port, 473 enum devlink_port_type port_type); 474 int (*port_split)(struct devlink *devlink, unsigned int port_index, 475 unsigned int count, struct netlink_ext_ack *extack); 476 int (*port_unsplit)(struct devlink *devlink, unsigned int port_index, 477 struct netlink_ext_ack *extack); 478 int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index, 479 u16 pool_index, 480 struct devlink_sb_pool_info *pool_info); 481 int (*sb_pool_set)(struct devlink *devlink, unsigned int sb_index, 482 u16 pool_index, u32 size, 483 enum devlink_sb_threshold_type threshold_type); 484 int (*sb_port_pool_get)(struct devlink_port *devlink_port, 485 unsigned int sb_index, u16 pool_index, 486 u32 *p_threshold); 487 int (*sb_port_pool_set)(struct devlink_port *devlink_port, 488 unsigned int sb_index, u16 pool_index, 489 u32 threshold); 490 int (*sb_tc_pool_bind_get)(struct devlink_port *devlink_port, 491 unsigned int sb_index, 492 u16 tc_index, 493 enum devlink_sb_pool_type pool_type, 494 u16 *p_pool_index, u32 *p_threshold); 495 int (*sb_tc_pool_bind_set)(struct devlink_port *devlink_port, 496 unsigned int sb_index, 497 u16 tc_index, 498 enum devlink_sb_pool_type pool_type, 499 u16 pool_index, u32 threshold); 500 int (*sb_occ_snapshot)(struct devlink *devlink, 501 unsigned int sb_index); 502 int (*sb_occ_max_clear)(struct devlink *devlink, 503 unsigned int sb_index); 504 int (*sb_occ_port_pool_get)(struct devlink_port *devlink_port, 505 unsigned int sb_index, u16 pool_index, 506 u32 *p_cur, u32 *p_max); 507 int (*sb_occ_tc_port_bind_get)(struct devlink_port *devlink_port, 508 unsigned int sb_index, 509 u16 tc_index, 510 enum devlink_sb_pool_type pool_type, 511 u32 *p_cur, u32 *p_max); 512 513 int (*eswitch_mode_get)(struct devlink *devlink, u16 *p_mode); 514 int (*eswitch_mode_set)(struct devlink *devlink, u16 mode, 515 struct netlink_ext_ack *extack); 516 int (*eswitch_inline_mode_get)(struct devlink *devlink, u8 *p_inline_mode); 517 int (*eswitch_inline_mode_set)(struct devlink *devlink, u8 inline_mode, 518 struct netlink_ext_ack *extack); 519 int (*eswitch_encap_mode_get)(struct devlink *devlink, u8 *p_encap_mode); 520 int (*eswitch_encap_mode_set)(struct devlink *devlink, u8 encap_mode, 521 struct netlink_ext_ack *extack); 522 int (*info_get)(struct devlink *devlink, struct devlink_info_req *req, 523 struct netlink_ext_ack *extack); 524 int (*flash_update)(struct devlink *devlink, const char *file_name, 525 const char *component, 526 struct netlink_ext_ack *extack); 527 }; 528 529 static inline void *devlink_priv(struct devlink *devlink) 530 { 531 BUG_ON(!devlink); 532 return &devlink->priv; 533 } 534 535 static inline struct devlink *priv_to_devlink(void *priv) 536 { 537 BUG_ON(!priv); 538 return container_of(priv, struct devlink, priv); 539 } 540 541 struct ib_device; 542 543 #if IS_ENABLED(CONFIG_NET_DEVLINK) 544 545 struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size); 546 int devlink_register(struct devlink *devlink, struct device *dev); 547 void devlink_unregister(struct devlink *devlink); 548 void devlink_free(struct devlink *devlink); 549 int devlink_port_register(struct devlink *devlink, 550 struct devlink_port *devlink_port, 551 unsigned int port_index); 552 void devlink_port_unregister(struct devlink_port *devlink_port); 553 void devlink_port_type_eth_set(struct devlink_port *devlink_port, 554 struct net_device *netdev); 555 void devlink_port_type_ib_set(struct devlink_port *devlink_port, 556 struct ib_device *ibdev); 557 void devlink_port_type_clear(struct devlink_port *devlink_port); 558 void devlink_port_attrs_set(struct devlink_port *devlink_port, 559 enum devlink_port_flavour flavour, 560 u32 port_number, bool split, 561 u32 split_subport_number); 562 int devlink_port_get_phys_port_name(struct devlink_port *devlink_port, 563 char *name, size_t len); 564 int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, 565 u32 size, u16 ingress_pools_count, 566 u16 egress_pools_count, u16 ingress_tc_count, 567 u16 egress_tc_count); 568 void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index); 569 int devlink_dpipe_table_register(struct devlink *devlink, 570 const char *table_name, 571 struct devlink_dpipe_table_ops *table_ops, 572 void *priv, bool counter_control_extern); 573 void devlink_dpipe_table_unregister(struct devlink *devlink, 574 const char *table_name); 575 int devlink_dpipe_headers_register(struct devlink *devlink, 576 struct devlink_dpipe_headers *dpipe_headers); 577 void devlink_dpipe_headers_unregister(struct devlink *devlink); 578 bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, 579 const char *table_name); 580 int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx); 581 int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, 582 struct devlink_dpipe_entry *entry); 583 int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx); 584 void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry); 585 int devlink_dpipe_action_put(struct sk_buff *skb, 586 struct devlink_dpipe_action *action); 587 int devlink_dpipe_match_put(struct sk_buff *skb, 588 struct devlink_dpipe_match *match); 589 extern struct devlink_dpipe_header devlink_dpipe_header_ethernet; 590 extern struct devlink_dpipe_header devlink_dpipe_header_ipv4; 591 extern struct devlink_dpipe_header devlink_dpipe_header_ipv6; 592 593 int devlink_resource_register(struct devlink *devlink, 594 const char *resource_name, 595 u64 resource_size, 596 u64 resource_id, 597 u64 parent_resource_id, 598 const struct devlink_resource_size_params *size_params); 599 void devlink_resources_unregister(struct devlink *devlink, 600 struct devlink_resource *resource); 601 int devlink_resource_size_get(struct devlink *devlink, 602 u64 resource_id, 603 u64 *p_resource_size); 604 int devlink_dpipe_table_resource_set(struct devlink *devlink, 605 const char *table_name, u64 resource_id, 606 u64 resource_units); 607 void devlink_resource_occ_get_register(struct devlink *devlink, 608 u64 resource_id, 609 devlink_resource_occ_get_t *occ_get, 610 void *occ_get_priv); 611 void devlink_resource_occ_get_unregister(struct devlink *devlink, 612 u64 resource_id); 613 int devlink_params_register(struct devlink *devlink, 614 const struct devlink_param *params, 615 size_t params_count); 616 void devlink_params_unregister(struct devlink *devlink, 617 const struct devlink_param *params, 618 size_t params_count); 619 void devlink_params_publish(struct devlink *devlink); 620 void devlink_params_unpublish(struct devlink *devlink); 621 int devlink_port_params_register(struct devlink_port *devlink_port, 622 const struct devlink_param *params, 623 size_t params_count); 624 void devlink_port_params_unregister(struct devlink_port *devlink_port, 625 const struct devlink_param *params, 626 size_t params_count); 627 int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, 628 union devlink_param_value *init_val); 629 int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, 630 union devlink_param_value init_val); 631 int 632 devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port, 633 u32 param_id, 634 union devlink_param_value *init_val); 635 int devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port, 636 u32 param_id, 637 union devlink_param_value init_val); 638 void devlink_param_value_changed(struct devlink *devlink, u32 param_id); 639 void devlink_port_param_value_changed(struct devlink_port *devlink_port, 640 u32 param_id); 641 void devlink_param_value_str_fill(union devlink_param_value *dst_val, 642 const char *src); 643 struct devlink_region *devlink_region_create(struct devlink *devlink, 644 const char *region_name, 645 u32 region_max_snapshots, 646 u64 region_size); 647 void devlink_region_destroy(struct devlink_region *region); 648 u32 devlink_region_shapshot_id_get(struct devlink *devlink); 649 int devlink_region_snapshot_create(struct devlink_region *region, u64 data_len, 650 u8 *data, u32 snapshot_id, 651 devlink_snapshot_data_dest_t *data_destructor); 652 int devlink_info_serial_number_put(struct devlink_info_req *req, 653 const char *sn); 654 int devlink_info_driver_name_put(struct devlink_info_req *req, 655 const char *name); 656 int devlink_info_version_fixed_put(struct devlink_info_req *req, 657 const char *version_name, 658 const char *version_value); 659 int devlink_info_version_stored_put(struct devlink_info_req *req, 660 const char *version_name, 661 const char *version_value); 662 int devlink_info_version_running_put(struct devlink_info_req *req, 663 const char *version_name, 664 const char *version_value); 665 666 int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg); 667 int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg); 668 669 int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name); 670 int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg); 671 672 int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg, 673 const char *name); 674 int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg); 675 676 int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value); 677 int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value); 678 int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value); 679 int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value); 680 int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value); 681 int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value, 682 u16 value_len); 683 684 int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name, 685 bool value); 686 int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name, 687 u8 value); 688 int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name, 689 u32 value); 690 int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name, 691 u64 value); 692 int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name, 693 const char *value); 694 int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name, 695 const void *value, u16 value_len); 696 697 struct devlink_health_reporter * 698 devlink_health_reporter_create(struct devlink *devlink, 699 const struct devlink_health_reporter_ops *ops, 700 u64 graceful_period, bool auto_recover, 701 void *priv); 702 void 703 devlink_health_reporter_destroy(struct devlink_health_reporter *reporter); 704 705 void * 706 devlink_health_reporter_priv(struct devlink_health_reporter *reporter); 707 int devlink_health_report(struct devlink_health_reporter *reporter, 708 const char *msg, void *priv_ctx); 709 710 #else 711 712 static inline struct devlink *devlink_alloc(const struct devlink_ops *ops, 713 size_t priv_size) 714 { 715 return kzalloc(sizeof(struct devlink) + priv_size, GFP_KERNEL); 716 } 717 718 static inline int devlink_register(struct devlink *devlink, struct device *dev) 719 { 720 return 0; 721 } 722 723 static inline void devlink_unregister(struct devlink *devlink) 724 { 725 } 726 727 static inline void devlink_params_publish(struct devlink *devlink) 728 { 729 } 730 731 static inline void devlink_params_unpublish(struct devlink *devlink) 732 { 733 } 734 735 static inline void devlink_free(struct devlink *devlink) 736 { 737 kfree(devlink); 738 } 739 740 static inline int devlink_port_register(struct devlink *devlink, 741 struct devlink_port *devlink_port, 742 unsigned int port_index) 743 { 744 return 0; 745 } 746 747 static inline void devlink_port_unregister(struct devlink_port *devlink_port) 748 { 749 } 750 751 static inline void devlink_port_type_eth_set(struct devlink_port *devlink_port, 752 struct net_device *netdev) 753 { 754 } 755 756 static inline void devlink_port_type_ib_set(struct devlink_port *devlink_port, 757 struct ib_device *ibdev) 758 { 759 } 760 761 static inline void devlink_port_type_clear(struct devlink_port *devlink_port) 762 { 763 } 764 765 static inline void devlink_port_attrs_set(struct devlink_port *devlink_port, 766 enum devlink_port_flavour flavour, 767 u32 port_number, bool split, 768 u32 split_subport_number) 769 { 770 } 771 772 static inline int 773 devlink_port_get_phys_port_name(struct devlink_port *devlink_port, 774 char *name, size_t len) 775 { 776 return -EOPNOTSUPP; 777 } 778 779 static inline int devlink_sb_register(struct devlink *devlink, 780 unsigned int sb_index, u32 size, 781 u16 ingress_pools_count, 782 u16 egress_pools_count, 783 u16 ingress_tc_count, 784 u16 egress_tc_count) 785 { 786 return 0; 787 } 788 789 static inline void devlink_sb_unregister(struct devlink *devlink, 790 unsigned int sb_index) 791 { 792 } 793 794 static inline int 795 devlink_dpipe_table_register(struct devlink *devlink, 796 const char *table_name, 797 struct devlink_dpipe_table_ops *table_ops, 798 void *priv, bool counter_control_extern) 799 { 800 return 0; 801 } 802 803 static inline void devlink_dpipe_table_unregister(struct devlink *devlink, 804 const char *table_name) 805 { 806 } 807 808 static inline int devlink_dpipe_headers_register(struct devlink *devlink, 809 struct devlink_dpipe_headers * 810 dpipe_headers) 811 { 812 return 0; 813 } 814 815 static inline void devlink_dpipe_headers_unregister(struct devlink *devlink) 816 { 817 } 818 819 static inline bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, 820 const char *table_name) 821 { 822 return false; 823 } 824 825 static inline int 826 devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx) 827 { 828 return 0; 829 } 830 831 static inline int 832 devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, 833 struct devlink_dpipe_entry *entry) 834 { 835 return 0; 836 } 837 838 static inline int 839 devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx) 840 { 841 return 0; 842 } 843 844 static inline void 845 devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry) 846 { 847 } 848 849 static inline int 850 devlink_dpipe_action_put(struct sk_buff *skb, 851 struct devlink_dpipe_action *action) 852 { 853 return 0; 854 } 855 856 static inline int 857 devlink_dpipe_match_put(struct sk_buff *skb, 858 struct devlink_dpipe_match *match) 859 { 860 return 0; 861 } 862 863 static inline int 864 devlink_resource_register(struct devlink *devlink, 865 const char *resource_name, 866 u64 resource_size, 867 u64 resource_id, 868 u64 parent_resource_id, 869 const struct devlink_resource_size_params *size_params) 870 { 871 return 0; 872 } 873 874 static inline void 875 devlink_resources_unregister(struct devlink *devlink, 876 struct devlink_resource *resource) 877 { 878 } 879 880 static inline int 881 devlink_resource_size_get(struct devlink *devlink, u64 resource_id, 882 u64 *p_resource_size) 883 { 884 return -EOPNOTSUPP; 885 } 886 887 static inline int 888 devlink_dpipe_table_resource_set(struct devlink *devlink, 889 const char *table_name, u64 resource_id, 890 u64 resource_units) 891 { 892 return -EOPNOTSUPP; 893 } 894 895 static inline void 896 devlink_resource_occ_get_register(struct devlink *devlink, 897 u64 resource_id, 898 devlink_resource_occ_get_t *occ_get, 899 void *occ_get_priv) 900 { 901 } 902 903 static inline void 904 devlink_resource_occ_get_unregister(struct devlink *devlink, 905 u64 resource_id) 906 { 907 } 908 909 static inline int 910 devlink_params_register(struct devlink *devlink, 911 const struct devlink_param *params, 912 size_t params_count) 913 { 914 return 0; 915 } 916 917 static inline void 918 devlink_params_unregister(struct devlink *devlink, 919 const struct devlink_param *params, 920 size_t params_count) 921 { 922 923 } 924 925 static inline int 926 devlink_port_params_register(struct devlink_port *devlink_port, 927 const struct devlink_param *params, 928 size_t params_count) 929 { 930 return 0; 931 } 932 933 static inline void 934 devlink_port_params_unregister(struct devlink_port *devlink_port, 935 const struct devlink_param *params, 936 size_t params_count) 937 { 938 } 939 940 static inline int 941 devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, 942 union devlink_param_value *init_val) 943 { 944 return -EOPNOTSUPP; 945 } 946 947 static inline int 948 devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, 949 union devlink_param_value init_val) 950 { 951 return -EOPNOTSUPP; 952 } 953 954 static inline int 955 devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port, 956 u32 param_id, 957 union devlink_param_value *init_val) 958 { 959 return -EOPNOTSUPP; 960 } 961 962 static inline int 963 devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port, 964 u32 param_id, 965 union devlink_param_value init_val) 966 { 967 return -EOPNOTSUPP; 968 } 969 970 static inline void 971 devlink_param_value_changed(struct devlink *devlink, u32 param_id) 972 { 973 } 974 975 static inline void 976 devlink_port_param_value_changed(struct devlink_port *devlink_port, 977 u32 param_id) 978 { 979 } 980 981 static inline void 982 devlink_param_value_str_fill(union devlink_param_value *dst_val, 983 const char *src) 984 { 985 } 986 987 static inline struct devlink_region * 988 devlink_region_create(struct devlink *devlink, 989 const char *region_name, 990 u32 region_max_snapshots, 991 u64 region_size) 992 { 993 return NULL; 994 } 995 996 static inline void 997 devlink_region_destroy(struct devlink_region *region) 998 { 999 } 1000 1001 static inline u32 1002 devlink_region_shapshot_id_get(struct devlink *devlink) 1003 { 1004 return 0; 1005 } 1006 1007 static inline int 1008 devlink_region_snapshot_create(struct devlink_region *region, u64 data_len, 1009 u8 *data, u32 snapshot_id, 1010 devlink_snapshot_data_dest_t *data_destructor) 1011 { 1012 return 0; 1013 } 1014 1015 static inline int 1016 devlink_info_driver_name_put(struct devlink_info_req *req, const char *name) 1017 { 1018 return 0; 1019 } 1020 1021 static inline int 1022 devlink_info_serial_number_put(struct devlink_info_req *req, const char *sn) 1023 { 1024 return 0; 1025 } 1026 1027 static inline int 1028 devlink_info_version_fixed_put(struct devlink_info_req *req, 1029 const char *version_name, 1030 const char *version_value) 1031 { 1032 return 0; 1033 } 1034 1035 static inline int 1036 devlink_info_version_stored_put(struct devlink_info_req *req, 1037 const char *version_name, 1038 const char *version_value) 1039 { 1040 return 0; 1041 } 1042 1043 static inline int 1044 devlink_info_version_running_put(struct devlink_info_req *req, 1045 const char *version_name, 1046 const char *version_value) 1047 { 1048 return 0; 1049 } 1050 1051 static inline int 1052 devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg) 1053 { 1054 return 0; 1055 } 1056 1057 static inline int 1058 devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg) 1059 { 1060 return 0; 1061 } 1062 1063 static inline int 1064 devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name) 1065 { 1066 return 0; 1067 } 1068 1069 static inline int 1070 devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg) 1071 { 1072 return 0; 1073 } 1074 1075 static inline int 1076 devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg, 1077 const char *name) 1078 { 1079 return 0; 1080 } 1081 1082 static inline int 1083 devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg) 1084 { 1085 return 0; 1086 } 1087 1088 static inline int 1089 devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value) 1090 { 1091 return 0; 1092 } 1093 1094 static inline int 1095 devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value) 1096 { 1097 return 0; 1098 } 1099 1100 static inline int 1101 devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value) 1102 { 1103 return 0; 1104 } 1105 1106 static inline int 1107 devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value) 1108 { 1109 return 0; 1110 } 1111 1112 static inline int 1113 devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value) 1114 { 1115 return 0; 1116 } 1117 1118 static inline int 1119 devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value, 1120 u16 value_len) 1121 { 1122 return 0; 1123 } 1124 1125 static inline int 1126 devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name, 1127 bool value) 1128 { 1129 return 0; 1130 } 1131 1132 static inline int 1133 devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name, 1134 u8 value) 1135 { 1136 return 0; 1137 } 1138 1139 static inline int 1140 devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name, 1141 u32 value) 1142 { 1143 return 0; 1144 } 1145 1146 static inline int 1147 devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name, 1148 u64 value) 1149 { 1150 return 0; 1151 } 1152 1153 static inline int 1154 devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name, 1155 const char *value) 1156 { 1157 return 0; 1158 } 1159 1160 static inline int 1161 devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name, 1162 const void *value, u16 value_len) 1163 { 1164 return 0; 1165 } 1166 1167 static inline struct devlink_health_reporter * 1168 devlink_health_reporter_create(struct devlink *devlink, 1169 const struct devlink_health_reporter_ops *ops, 1170 u64 graceful_period, bool auto_recover, 1171 void *priv) 1172 { 1173 return NULL; 1174 } 1175 1176 static inline void 1177 devlink_health_reporter_destroy(struct devlink_health_reporter *reporter) 1178 { 1179 } 1180 1181 static inline void * 1182 devlink_health_reporter_priv(struct devlink_health_reporter *reporter) 1183 { 1184 return NULL; 1185 } 1186 1187 static inline int 1188 devlink_health_report(struct devlink_health_reporter *reporter, 1189 const char *msg, void *priv_ctx) 1190 { 1191 return 0; 1192 } 1193 #endif 1194 1195 #if IS_REACHABLE(CONFIG_NET_DEVLINK) 1196 void devlink_compat_running_version(struct net_device *dev, 1197 char *buf, size_t len); 1198 int devlink_compat_flash_update(struct net_device *dev, const char *file_name); 1199 #else 1200 static inline void 1201 devlink_compat_running_version(struct net_device *dev, char *buf, size_t len) 1202 { 1203 } 1204 1205 static inline int 1206 devlink_compat_flash_update(struct net_device *dev, const char *file_name) 1207 { 1208 return -EOPNOTSUPP; 1209 } 1210 #endif 1211 1212 #endif /* _NET_DEVLINK_H_ */ 1213