1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * include/net/devlink.h - Network physical device Netlink interface 4 * Copyright (c) 2016 Mellanox Technologies. All rights reserved. 5 * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com> 6 */ 7 #ifndef _NET_DEVLINK_H_ 8 #define _NET_DEVLINK_H_ 9 10 #include <linux/device.h> 11 #include <linux/slab.h> 12 #include <linux/gfp.h> 13 #include <linux/list.h> 14 #include <linux/netdevice.h> 15 #include <linux/spinlock.h> 16 #include <linux/workqueue.h> 17 #include <net/net_namespace.h> 18 #include <uapi/linux/devlink.h> 19 20 struct devlink_ops; 21 22 struct devlink { 23 struct list_head list; 24 struct list_head port_list; 25 struct list_head sb_list; 26 struct list_head dpipe_table_list; 27 struct list_head resource_list; 28 struct list_head param_list; 29 struct list_head region_list; 30 u32 snapshot_id; 31 struct list_head reporter_list; 32 struct mutex reporters_lock; /* protects reporter_list */ 33 struct devlink_dpipe_headers *dpipe_headers; 34 const struct devlink_ops *ops; 35 struct device *dev; 36 possible_net_t _net; 37 struct mutex lock; 38 char priv[0] __aligned(NETDEV_ALIGN); 39 }; 40 41 struct devlink_port_attrs { 42 u8 set:1, 43 split:1, 44 switch_port:1; 45 enum devlink_port_flavour flavour; 46 u32 port_number; /* same value as "split group" */ 47 u32 split_subport_number; 48 struct netdev_phys_item_id switch_id; 49 }; 50 51 struct devlink_port { 52 struct list_head list; 53 struct list_head param_list; 54 struct devlink *devlink; 55 unsigned index; 56 bool registered; 57 spinlock_t type_lock; /* Protects type and type_dev 58 * pointer consistency. 59 */ 60 enum devlink_port_type type; 61 enum devlink_port_type desired_type; 62 void *type_dev; 63 struct devlink_port_attrs attrs; 64 struct delayed_work type_warn_dw; 65 }; 66 67 struct devlink_sb_pool_info { 68 enum devlink_sb_pool_type pool_type; 69 u32 size; 70 enum devlink_sb_threshold_type threshold_type; 71 u32 cell_size; 72 }; 73 74 /** 75 * struct devlink_dpipe_field - dpipe field object 76 * @name: field name 77 * @id: index inside the headers field array 78 * @bitwidth: bitwidth 79 * @mapping_type: mapping type 80 */ 81 struct devlink_dpipe_field { 82 const char *name; 83 unsigned int id; 84 unsigned int bitwidth; 85 enum devlink_dpipe_field_mapping_type mapping_type; 86 }; 87 88 /** 89 * struct devlink_dpipe_header - dpipe header object 90 * @name: header name 91 * @id: index, global/local detrmined by global bit 92 * @fields: fields 93 * @fields_count: number of fields 94 * @global: indicates if header is shared like most protocol header 95 * or driver specific 96 */ 97 struct devlink_dpipe_header { 98 const char *name; 99 unsigned int id; 100 struct devlink_dpipe_field *fields; 101 unsigned int fields_count; 102 bool global; 103 }; 104 105 /** 106 * struct devlink_dpipe_match - represents match operation 107 * @type: type of match 108 * @header_index: header index (packets can have several headers of same 109 * type like in case of tunnels) 110 * @header: header 111 * @fieled_id: field index 112 */ 113 struct devlink_dpipe_match { 114 enum devlink_dpipe_match_type type; 115 unsigned int header_index; 116 struct devlink_dpipe_header *header; 117 unsigned int field_id; 118 }; 119 120 /** 121 * struct devlink_dpipe_action - represents action operation 122 * @type: type of action 123 * @header_index: header index (packets can have several headers of same 124 * type like in case of tunnels) 125 * @header: header 126 * @fieled_id: field index 127 */ 128 struct devlink_dpipe_action { 129 enum devlink_dpipe_action_type type; 130 unsigned int header_index; 131 struct devlink_dpipe_header *header; 132 unsigned int field_id; 133 }; 134 135 /** 136 * struct devlink_dpipe_value - represents value of match/action 137 * @action: action 138 * @match: match 139 * @mapping_value: in case the field has some mapping this value 140 * specified the mapping value 141 * @mapping_valid: specify if mapping value is valid 142 * @value_size: value size 143 * @value: value 144 * @mask: bit mask 145 */ 146 struct devlink_dpipe_value { 147 union { 148 struct devlink_dpipe_action *action; 149 struct devlink_dpipe_match *match; 150 }; 151 unsigned int mapping_value; 152 bool mapping_valid; 153 unsigned int value_size; 154 void *value; 155 void *mask; 156 }; 157 158 /** 159 * struct devlink_dpipe_entry - table entry object 160 * @index: index of the entry in the table 161 * @match_values: match values 162 * @matche_values_count: count of matches tuples 163 * @action_values: actions values 164 * @action_values_count: count of actions values 165 * @counter: value of counter 166 * @counter_valid: Specify if value is valid from hardware 167 */ 168 struct devlink_dpipe_entry { 169 u64 index; 170 struct devlink_dpipe_value *match_values; 171 unsigned int match_values_count; 172 struct devlink_dpipe_value *action_values; 173 unsigned int action_values_count; 174 u64 counter; 175 bool counter_valid; 176 }; 177 178 /** 179 * struct devlink_dpipe_dump_ctx - context provided to driver in order 180 * to dump 181 * @info: info 182 * @cmd: devlink command 183 * @skb: skb 184 * @nest: top attribute 185 * @hdr: hdr 186 */ 187 struct devlink_dpipe_dump_ctx { 188 struct genl_info *info; 189 enum devlink_command cmd; 190 struct sk_buff *skb; 191 struct nlattr *nest; 192 void *hdr; 193 }; 194 195 struct devlink_dpipe_table_ops; 196 197 /** 198 * struct devlink_dpipe_table - table object 199 * @priv: private 200 * @name: table name 201 * @counters_enabled: indicates if counters are active 202 * @counter_control_extern: indicates if counter control is in dpipe or 203 * external tool 204 * @resource_valid: Indicate that the resource id is valid 205 * @resource_id: relative resource this table is related to 206 * @resource_units: number of resource's unit consumed per table's entry 207 * @table_ops: table operations 208 * @rcu: rcu 209 */ 210 struct devlink_dpipe_table { 211 void *priv; 212 struct list_head list; 213 const char *name; 214 bool counters_enabled; 215 bool counter_control_extern; 216 bool resource_valid; 217 u64 resource_id; 218 u64 resource_units; 219 struct devlink_dpipe_table_ops *table_ops; 220 struct rcu_head rcu; 221 }; 222 223 /** 224 * struct devlink_dpipe_table_ops - dpipe_table ops 225 * @actions_dump - dumps all tables actions 226 * @matches_dump - dumps all tables matches 227 * @entries_dump - dumps all active entries in the table 228 * @counters_set_update - when changing the counter status hardware sync 229 * maybe needed to allocate/free counter related 230 * resources 231 * @size_get - get size 232 */ 233 struct devlink_dpipe_table_ops { 234 int (*actions_dump)(void *priv, struct sk_buff *skb); 235 int (*matches_dump)(void *priv, struct sk_buff *skb); 236 int (*entries_dump)(void *priv, bool counters_enabled, 237 struct devlink_dpipe_dump_ctx *dump_ctx); 238 int (*counters_set_update)(void *priv, bool enable); 239 u64 (*size_get)(void *priv); 240 }; 241 242 /** 243 * struct devlink_dpipe_headers - dpipe headers 244 * @headers - header array can be shared (global bit) or driver specific 245 * @headers_count - count of headers 246 */ 247 struct devlink_dpipe_headers { 248 struct devlink_dpipe_header **headers; 249 unsigned int headers_count; 250 }; 251 252 /** 253 * struct devlink_resource_size_params - resource's size parameters 254 * @size_min: minimum size which can be set 255 * @size_max: maximum size which can be set 256 * @size_granularity: size granularity 257 * @size_unit: resource's basic unit 258 */ 259 struct devlink_resource_size_params { 260 u64 size_min; 261 u64 size_max; 262 u64 size_granularity; 263 enum devlink_resource_unit unit; 264 }; 265 266 static inline void 267 devlink_resource_size_params_init(struct devlink_resource_size_params *size_params, 268 u64 size_min, u64 size_max, 269 u64 size_granularity, 270 enum devlink_resource_unit unit) 271 { 272 size_params->size_min = size_min; 273 size_params->size_max = size_max; 274 size_params->size_granularity = size_granularity; 275 size_params->unit = unit; 276 } 277 278 typedef u64 devlink_resource_occ_get_t(void *priv); 279 280 /** 281 * struct devlink_resource - devlink resource 282 * @name: name of the resource 283 * @id: id, per devlink instance 284 * @size: size of the resource 285 * @size_new: updated size of the resource, reload is needed 286 * @size_valid: valid in case the total size of the resource is valid 287 * including its children 288 * @parent: parent resource 289 * @size_params: size parameters 290 * @list: parent list 291 * @resource_list: list of child resources 292 */ 293 struct devlink_resource { 294 const char *name; 295 u64 id; 296 u64 size; 297 u64 size_new; 298 bool size_valid; 299 struct devlink_resource *parent; 300 struct devlink_resource_size_params size_params; 301 struct list_head list; 302 struct list_head resource_list; 303 devlink_resource_occ_get_t *occ_get; 304 void *occ_get_priv; 305 }; 306 307 #define DEVLINK_RESOURCE_ID_PARENT_TOP 0 308 309 #define __DEVLINK_PARAM_MAX_STRING_VALUE 32 310 enum devlink_param_type { 311 DEVLINK_PARAM_TYPE_U8, 312 DEVLINK_PARAM_TYPE_U16, 313 DEVLINK_PARAM_TYPE_U32, 314 DEVLINK_PARAM_TYPE_STRING, 315 DEVLINK_PARAM_TYPE_BOOL, 316 }; 317 318 union devlink_param_value { 319 u8 vu8; 320 u16 vu16; 321 u32 vu32; 322 char vstr[__DEVLINK_PARAM_MAX_STRING_VALUE]; 323 bool vbool; 324 }; 325 326 struct devlink_param_gset_ctx { 327 union devlink_param_value val; 328 enum devlink_param_cmode cmode; 329 }; 330 331 /** 332 * struct devlink_param - devlink configuration parameter data 333 * @name: name of the parameter 334 * @generic: indicates if the parameter is generic or driver specific 335 * @type: parameter type 336 * @supported_cmodes: bitmap of supported configuration modes 337 * @get: get parameter value, used for runtime and permanent 338 * configuration modes 339 * @set: set parameter value, used for runtime and permanent 340 * configuration modes 341 * @validate: validate input value is applicable (within value range, etc.) 342 * 343 * This struct should be used by the driver to fill the data for 344 * a parameter it registers. 345 */ 346 struct devlink_param { 347 u32 id; 348 const char *name; 349 bool generic; 350 enum devlink_param_type type; 351 unsigned long supported_cmodes; 352 int (*get)(struct devlink *devlink, u32 id, 353 struct devlink_param_gset_ctx *ctx); 354 int (*set)(struct devlink *devlink, u32 id, 355 struct devlink_param_gset_ctx *ctx); 356 int (*validate)(struct devlink *devlink, u32 id, 357 union devlink_param_value val, 358 struct netlink_ext_ack *extack); 359 }; 360 361 struct devlink_param_item { 362 struct list_head list; 363 const struct devlink_param *param; 364 union devlink_param_value driverinit_value; 365 bool driverinit_value_valid; 366 bool published; 367 }; 368 369 enum devlink_param_generic_id { 370 DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET, 371 DEVLINK_PARAM_GENERIC_ID_MAX_MACS, 372 DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV, 373 DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT, 374 DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI, 375 DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX, 376 DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN, 377 DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, 378 379 /* add new param generic ids above here*/ 380 __DEVLINK_PARAM_GENERIC_ID_MAX, 381 DEVLINK_PARAM_GENERIC_ID_MAX = __DEVLINK_PARAM_GENERIC_ID_MAX - 1, 382 }; 383 384 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME "internal_error_reset" 385 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL 386 387 #define DEVLINK_PARAM_GENERIC_MAX_MACS_NAME "max_macs" 388 #define DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE DEVLINK_PARAM_TYPE_U32 389 390 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME "enable_sriov" 391 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE DEVLINK_PARAM_TYPE_BOOL 392 393 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME "region_snapshot_enable" 394 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE DEVLINK_PARAM_TYPE_BOOL 395 396 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME "ignore_ari" 397 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE DEVLINK_PARAM_TYPE_BOOL 398 399 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME "msix_vec_per_pf_max" 400 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE DEVLINK_PARAM_TYPE_U32 401 402 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME "msix_vec_per_pf_min" 403 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE DEVLINK_PARAM_TYPE_U32 404 405 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME "fw_load_policy" 406 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE DEVLINK_PARAM_TYPE_U8 407 408 #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate) \ 409 { \ 410 .id = DEVLINK_PARAM_GENERIC_ID_##_id, \ 411 .name = DEVLINK_PARAM_GENERIC_##_id##_NAME, \ 412 .type = DEVLINK_PARAM_GENERIC_##_id##_TYPE, \ 413 .generic = true, \ 414 .supported_cmodes = _cmodes, \ 415 .get = _get, \ 416 .set = _set, \ 417 .validate = _validate, \ 418 } 419 420 #define DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, _get, _set, _validate) \ 421 { \ 422 .id = _id, \ 423 .name = _name, \ 424 .type = _type, \ 425 .supported_cmodes = _cmodes, \ 426 .get = _get, \ 427 .set = _set, \ 428 .validate = _validate, \ 429 } 430 431 /* Part number, identifier of board design */ 432 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_ID "board.id" 433 /* Revision of board design */ 434 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_REV "board.rev" 435 /* Maker of the board */ 436 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE "board.manufacture" 437 438 /* Control processor FW version */ 439 #define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT "fw.mgmt" 440 /* Data path microcode controlling high-speed packet processing */ 441 #define DEVLINK_INFO_VERSION_GENERIC_FW_APP "fw.app" 442 /* UNDI software version */ 443 #define DEVLINK_INFO_VERSION_GENERIC_FW_UNDI "fw.undi" 444 /* NCSI support/handler version */ 445 #define DEVLINK_INFO_VERSION_GENERIC_FW_NCSI "fw.ncsi" 446 447 struct devlink_region; 448 struct devlink_info_req; 449 450 typedef void devlink_snapshot_data_dest_t(const void *data); 451 452 struct devlink_fmsg; 453 struct devlink_health_reporter; 454 455 enum devlink_health_reporter_state { 456 DEVLINK_HEALTH_REPORTER_STATE_HEALTHY, 457 DEVLINK_HEALTH_REPORTER_STATE_ERROR, 458 }; 459 460 /** 461 * struct devlink_health_reporter_ops - Reporter operations 462 * @name: reporter name 463 * @recover: callback to recover from reported error 464 * if priv_ctx is NULL, run a full recover 465 * @dump: callback to dump an object 466 * if priv_ctx is NULL, run a full dump 467 * @diagnose: callback to diagnose the current status 468 */ 469 470 struct devlink_health_reporter_ops { 471 char *name; 472 int (*recover)(struct devlink_health_reporter *reporter, 473 void *priv_ctx); 474 int (*dump)(struct devlink_health_reporter *reporter, 475 struct devlink_fmsg *fmsg, void *priv_ctx); 476 int (*diagnose)(struct devlink_health_reporter *reporter, 477 struct devlink_fmsg *fmsg); 478 }; 479 480 struct devlink_ops { 481 int (*reload)(struct devlink *devlink, struct netlink_ext_ack *extack); 482 int (*port_type_set)(struct devlink_port *devlink_port, 483 enum devlink_port_type port_type); 484 int (*port_split)(struct devlink *devlink, unsigned int port_index, 485 unsigned int count, struct netlink_ext_ack *extack); 486 int (*port_unsplit)(struct devlink *devlink, unsigned int port_index, 487 struct netlink_ext_ack *extack); 488 int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index, 489 u16 pool_index, 490 struct devlink_sb_pool_info *pool_info); 491 int (*sb_pool_set)(struct devlink *devlink, unsigned int sb_index, 492 u16 pool_index, u32 size, 493 enum devlink_sb_threshold_type threshold_type, 494 struct netlink_ext_ack *extack); 495 int (*sb_port_pool_get)(struct devlink_port *devlink_port, 496 unsigned int sb_index, u16 pool_index, 497 u32 *p_threshold); 498 int (*sb_port_pool_set)(struct devlink_port *devlink_port, 499 unsigned int sb_index, u16 pool_index, 500 u32 threshold, struct netlink_ext_ack *extack); 501 int (*sb_tc_pool_bind_get)(struct devlink_port *devlink_port, 502 unsigned int sb_index, 503 u16 tc_index, 504 enum devlink_sb_pool_type pool_type, 505 u16 *p_pool_index, u32 *p_threshold); 506 int (*sb_tc_pool_bind_set)(struct devlink_port *devlink_port, 507 unsigned int sb_index, 508 u16 tc_index, 509 enum devlink_sb_pool_type pool_type, 510 u16 pool_index, u32 threshold, 511 struct netlink_ext_ack *extack); 512 int (*sb_occ_snapshot)(struct devlink *devlink, 513 unsigned int sb_index); 514 int (*sb_occ_max_clear)(struct devlink *devlink, 515 unsigned int sb_index); 516 int (*sb_occ_port_pool_get)(struct devlink_port *devlink_port, 517 unsigned int sb_index, u16 pool_index, 518 u32 *p_cur, u32 *p_max); 519 int (*sb_occ_tc_port_bind_get)(struct devlink_port *devlink_port, 520 unsigned int sb_index, 521 u16 tc_index, 522 enum devlink_sb_pool_type pool_type, 523 u32 *p_cur, u32 *p_max); 524 525 int (*eswitch_mode_get)(struct devlink *devlink, u16 *p_mode); 526 int (*eswitch_mode_set)(struct devlink *devlink, u16 mode, 527 struct netlink_ext_ack *extack); 528 int (*eswitch_inline_mode_get)(struct devlink *devlink, u8 *p_inline_mode); 529 int (*eswitch_inline_mode_set)(struct devlink *devlink, u8 inline_mode, 530 struct netlink_ext_ack *extack); 531 int (*eswitch_encap_mode_get)(struct devlink *devlink, u8 *p_encap_mode); 532 int (*eswitch_encap_mode_set)(struct devlink *devlink, u8 encap_mode, 533 struct netlink_ext_ack *extack); 534 int (*info_get)(struct devlink *devlink, struct devlink_info_req *req, 535 struct netlink_ext_ack *extack); 536 int (*flash_update)(struct devlink *devlink, const char *file_name, 537 const char *component, 538 struct netlink_ext_ack *extack); 539 }; 540 541 static inline void *devlink_priv(struct devlink *devlink) 542 { 543 BUG_ON(!devlink); 544 return &devlink->priv; 545 } 546 547 static inline struct devlink *priv_to_devlink(void *priv) 548 { 549 BUG_ON(!priv); 550 return container_of(priv, struct devlink, priv); 551 } 552 553 static inline struct devlink_port * 554 netdev_to_devlink_port(struct net_device *dev) 555 { 556 if (dev->netdev_ops->ndo_get_devlink_port) 557 return dev->netdev_ops->ndo_get_devlink_port(dev); 558 return NULL; 559 } 560 561 static inline struct devlink *netdev_to_devlink(struct net_device *dev) 562 { 563 struct devlink_port *devlink_port = netdev_to_devlink_port(dev); 564 565 if (devlink_port) 566 return devlink_port->devlink; 567 return NULL; 568 } 569 570 struct ib_device; 571 572 struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size); 573 int devlink_register(struct devlink *devlink, struct device *dev); 574 void devlink_unregister(struct devlink *devlink); 575 void devlink_free(struct devlink *devlink); 576 int devlink_port_register(struct devlink *devlink, 577 struct devlink_port *devlink_port, 578 unsigned int port_index); 579 void devlink_port_unregister(struct devlink_port *devlink_port); 580 void devlink_port_type_eth_set(struct devlink_port *devlink_port, 581 struct net_device *netdev); 582 void devlink_port_type_ib_set(struct devlink_port *devlink_port, 583 struct ib_device *ibdev); 584 void devlink_port_type_clear(struct devlink_port *devlink_port); 585 void devlink_port_attrs_set(struct devlink_port *devlink_port, 586 enum devlink_port_flavour flavour, 587 u32 port_number, bool split, 588 u32 split_subport_number, 589 const unsigned char *switch_id, 590 unsigned char switch_id_len); 591 int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, 592 u32 size, u16 ingress_pools_count, 593 u16 egress_pools_count, u16 ingress_tc_count, 594 u16 egress_tc_count); 595 void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index); 596 int devlink_dpipe_table_register(struct devlink *devlink, 597 const char *table_name, 598 struct devlink_dpipe_table_ops *table_ops, 599 void *priv, bool counter_control_extern); 600 void devlink_dpipe_table_unregister(struct devlink *devlink, 601 const char *table_name); 602 int devlink_dpipe_headers_register(struct devlink *devlink, 603 struct devlink_dpipe_headers *dpipe_headers); 604 void devlink_dpipe_headers_unregister(struct devlink *devlink); 605 bool devlink_dpipe_table_counter_enabled(struct devlink *devlink, 606 const char *table_name); 607 int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx); 608 int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx, 609 struct devlink_dpipe_entry *entry); 610 int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx); 611 void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry); 612 int devlink_dpipe_action_put(struct sk_buff *skb, 613 struct devlink_dpipe_action *action); 614 int devlink_dpipe_match_put(struct sk_buff *skb, 615 struct devlink_dpipe_match *match); 616 extern struct devlink_dpipe_header devlink_dpipe_header_ethernet; 617 extern struct devlink_dpipe_header devlink_dpipe_header_ipv4; 618 extern struct devlink_dpipe_header devlink_dpipe_header_ipv6; 619 620 int devlink_resource_register(struct devlink *devlink, 621 const char *resource_name, 622 u64 resource_size, 623 u64 resource_id, 624 u64 parent_resource_id, 625 const struct devlink_resource_size_params *size_params); 626 void devlink_resources_unregister(struct devlink *devlink, 627 struct devlink_resource *resource); 628 int devlink_resource_size_get(struct devlink *devlink, 629 u64 resource_id, 630 u64 *p_resource_size); 631 int devlink_dpipe_table_resource_set(struct devlink *devlink, 632 const char *table_name, u64 resource_id, 633 u64 resource_units); 634 void devlink_resource_occ_get_register(struct devlink *devlink, 635 u64 resource_id, 636 devlink_resource_occ_get_t *occ_get, 637 void *occ_get_priv); 638 void devlink_resource_occ_get_unregister(struct devlink *devlink, 639 u64 resource_id); 640 int devlink_params_register(struct devlink *devlink, 641 const struct devlink_param *params, 642 size_t params_count); 643 void devlink_params_unregister(struct devlink *devlink, 644 const struct devlink_param *params, 645 size_t params_count); 646 void devlink_params_publish(struct devlink *devlink); 647 void devlink_params_unpublish(struct devlink *devlink); 648 int devlink_port_params_register(struct devlink_port *devlink_port, 649 const struct devlink_param *params, 650 size_t params_count); 651 void devlink_port_params_unregister(struct devlink_port *devlink_port, 652 const struct devlink_param *params, 653 size_t params_count); 654 int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id, 655 union devlink_param_value *init_val); 656 int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id, 657 union devlink_param_value init_val); 658 int 659 devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port, 660 u32 param_id, 661 union devlink_param_value *init_val); 662 int devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port, 663 u32 param_id, 664 union devlink_param_value init_val); 665 void devlink_param_value_changed(struct devlink *devlink, u32 param_id); 666 void devlink_port_param_value_changed(struct devlink_port *devlink_port, 667 u32 param_id); 668 void devlink_param_value_str_fill(union devlink_param_value *dst_val, 669 const char *src); 670 struct devlink_region *devlink_region_create(struct devlink *devlink, 671 const char *region_name, 672 u32 region_max_snapshots, 673 u64 region_size); 674 void devlink_region_destroy(struct devlink_region *region); 675 u32 devlink_region_shapshot_id_get(struct devlink *devlink); 676 int devlink_region_snapshot_create(struct devlink_region *region, u64 data_len, 677 u8 *data, u32 snapshot_id, 678 devlink_snapshot_data_dest_t *data_destructor); 679 int devlink_info_serial_number_put(struct devlink_info_req *req, 680 const char *sn); 681 int devlink_info_driver_name_put(struct devlink_info_req *req, 682 const char *name); 683 int devlink_info_version_fixed_put(struct devlink_info_req *req, 684 const char *version_name, 685 const char *version_value); 686 int devlink_info_version_stored_put(struct devlink_info_req *req, 687 const char *version_name, 688 const char *version_value); 689 int devlink_info_version_running_put(struct devlink_info_req *req, 690 const char *version_name, 691 const char *version_value); 692 693 int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg); 694 int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg); 695 696 int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name); 697 int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg); 698 699 int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg, 700 const char *name); 701 int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg); 702 703 int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value); 704 int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value); 705 int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value); 706 int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value); 707 int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value); 708 int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value, 709 u16 value_len); 710 711 int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name, 712 bool value); 713 int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name, 714 u8 value); 715 int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name, 716 u32 value); 717 int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name, 718 u64 value); 719 int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name, 720 const char *value); 721 int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name, 722 const void *value, u16 value_len); 723 724 struct devlink_health_reporter * 725 devlink_health_reporter_create(struct devlink *devlink, 726 const struct devlink_health_reporter_ops *ops, 727 u64 graceful_period, bool auto_recover, 728 void *priv); 729 void 730 devlink_health_reporter_destroy(struct devlink_health_reporter *reporter); 731 732 void * 733 devlink_health_reporter_priv(struct devlink_health_reporter *reporter); 734 int devlink_health_report(struct devlink_health_reporter *reporter, 735 const char *msg, void *priv_ctx); 736 void 737 devlink_health_reporter_state_update(struct devlink_health_reporter *reporter, 738 enum devlink_health_reporter_state state); 739 740 void devlink_flash_update_begin_notify(struct devlink *devlink); 741 void devlink_flash_update_end_notify(struct devlink *devlink); 742 void devlink_flash_update_status_notify(struct devlink *devlink, 743 const char *status_msg, 744 const char *component, 745 unsigned long done, 746 unsigned long total); 747 748 #if IS_ENABLED(CONFIG_NET_DEVLINK) 749 750 void devlink_compat_running_version(struct net_device *dev, 751 char *buf, size_t len); 752 int devlink_compat_flash_update(struct net_device *dev, const char *file_name); 753 int devlink_compat_phys_port_name_get(struct net_device *dev, 754 char *name, size_t len); 755 int devlink_compat_switch_id_get(struct net_device *dev, 756 struct netdev_phys_item_id *ppid); 757 758 #else 759 760 static inline void 761 devlink_compat_running_version(struct net_device *dev, char *buf, size_t len) 762 { 763 } 764 765 static inline int 766 devlink_compat_flash_update(struct net_device *dev, const char *file_name) 767 { 768 return -EOPNOTSUPP; 769 } 770 771 static inline int 772 devlink_compat_phys_port_name_get(struct net_device *dev, 773 char *name, size_t len) 774 { 775 return -EOPNOTSUPP; 776 } 777 778 static inline int 779 devlink_compat_switch_id_get(struct net_device *dev, 780 struct netdev_phys_item_id *ppid) 781 { 782 return -EOPNOTSUPP; 783 } 784 785 #endif 786 787 #endif /* _NET_DEVLINK_H_ */ 788