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