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