include/net/devlink.h

   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 <linux/refcount.h>
  18 #include <net/net_namespace.h>
  19 #include <net/flow_offload.h>
  20 #include <uapi/linux/devlink.h>
  21 #include <linux/xarray.h>
  22 #include <linux/firmware.h>
  23
  24 #define DEVLINK_RELOAD_STATS_ARRAY_SIZE \
  25         (__DEVLINK_RELOAD_LIMIT_MAX * __DEVLINK_RELOAD_ACTION_MAX)
  26
  27 struct devlink_dev_stats {
  28         u32 reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE];
  29         u32 remote_reload_stats[DEVLINK_RELOAD_STATS_ARRAY_SIZE];
  30 };
  31
  32 struct devlink_ops;
  33
  34 struct devlink {
  35         struct list_head list;
  36         struct list_head port_list;
  37         struct list_head sb_list;
  38         struct list_head dpipe_table_list;
  39         struct list_head resource_list;
  40         struct list_head param_list;
  41         struct list_head region_list;
  42         struct list_head reporter_list;
  43         struct mutex reporters_lock; /* protects reporter_list */
  44         struct devlink_dpipe_headers *dpipe_headers;
  45         struct list_head trap_list;
  46         struct list_head trap_group_list;
  47         struct list_head trap_policer_list;
  48         const struct devlink_ops *ops;
  49         struct xarray snapshot_ids;
  50         struct devlink_dev_stats stats;
  51         struct device *dev;
  52         possible_net_t _net;
  53         struct mutex lock; /* Serializes access to devlink instance specific objects such as
  54                             * port, sb, dpipe, resource, params, region, traps and more.
  55                             */
  56         u8 reload_failed:1,
  57            reload_enabled:1,
  58            registered:1;
  59         char priv[0] __aligned(NETDEV_ALIGN);
  60 };
  61
  62 struct devlink_port_phys_attrs {
  63         u32 port_number; /* Same value as "split group".
  64                           * A physical port which is visible to the user
  65                           * for a given port flavour.
  66                           */
  67         u32 split_subport_number; /* If the port is split, this is the number of subport. */
  68 };
  69
  70 /**
  71  * struct devlink_port_pci_pf_attrs - devlink port's PCI PF attributes
  72  * @controller: Associated controller number
  73  * @pf: Associated PCI PF number for this port.
  74  * @external: when set, indicates if a port is for an external controller
  75  */
  76 struct devlink_port_pci_pf_attrs {
  77         u32 controller;
  78         u16 pf;
  79         u8 external:1;
  80 };
  81
  82 /**
  83  * struct devlink_port_pci_vf_attrs - devlink port's PCI VF attributes
  84  * @controller: Associated controller number
  85  * @pf: Associated PCI PF number for this port.
  86  * @vf: Associated PCI VF for of the PCI PF for this port.
  87  * @external: when set, indicates if a port is for an external controller
  88  */
  89 struct devlink_port_pci_vf_attrs {
  90         u32 controller;
  91         u16 pf;
  92         u16 vf;
  93         u8 external:1;
  94 };
  95
  96 /**
  97  * struct devlink_port_attrs - devlink port object
  98  * @flavour: flavour of the port
  99  * @split: indicates if this is split port
 100  * @splittable: indicates if the port can be split.
 101  * @lanes: maximum number of lanes the port supports. 0 value is not passed to netlink.
 102  * @switch_id: if the port is part of switch, this is buffer with ID, otherwise this is NULL
 103  * @phys: physical port attributes
 104  * @pci_pf: PCI PF port attributes
 105  * @pci_vf: PCI VF port attributes
 106  */
 107 struct devlink_port_attrs {
 108         u8 split:1,
 109            splittable:1;
 110         u32 lanes;
 111         enum devlink_port_flavour flavour;
 112         struct netdev_phys_item_id switch_id;
 113         union {
 114                 struct devlink_port_phys_attrs phys;
 115                 struct devlink_port_pci_pf_attrs pci_pf;
 116                 struct devlink_port_pci_vf_attrs pci_vf;
 117         };
 118 };
 119
 120 struct devlink_port {
 121         struct list_head list;
 122         struct list_head param_list;
 123         struct list_head region_list;
 124         struct devlink *devlink;
 125         unsigned int index;
 126         bool registered;
 127         spinlock_t type_lock; /* Protects type and type_dev
 128                                * pointer consistency.
 129                                */
 130         enum devlink_port_type type;
 131         enum devlink_port_type desired_type;
 132         void *type_dev;
 133         struct devlink_port_attrs attrs;
 134         u8 attrs_set:1,
 135            switch_port:1;
 136         struct delayed_work type_warn_dw;
 137         struct list_head reporter_list;
 138         struct mutex reporters_lock; /* Protects reporter_list */
 139 };
 140
 141 struct devlink_sb_pool_info {
 142         enum devlink_sb_pool_type pool_type;
 143         u32 size;
 144         enum devlink_sb_threshold_type threshold_type;
 145         u32 cell_size;
 146 };
 147
 148 /**
 149  * struct devlink_dpipe_field - dpipe field object
 150  * @name: field name
 151  * @id: index inside the headers field array
 152  * @bitwidth: bitwidth
 153  * @mapping_type: mapping type
 154  */
 155 struct devlink_dpipe_field {
 156         const char *name;
 157         unsigned int id;
 158         unsigned int bitwidth;
 159         enum devlink_dpipe_field_mapping_type mapping_type;
 160 };
 161
 162 /**
 163  * struct devlink_dpipe_header - dpipe header object
 164  * @name: header name
 165  * @id: index, global/local detrmined by global bit
 166  * @fields: fields
 167  * @fields_count: number of fields
 168  * @global: indicates if header is shared like most protocol header
 169  *          or driver specific
 170  */
 171 struct devlink_dpipe_header {
 172         const char *name;
 173         unsigned int id;
 174         struct devlink_dpipe_field *fields;
 175         unsigned int fields_count;
 176         bool global;
 177 };
 178
 179 /**
 180  * struct devlink_dpipe_match - represents match operation
 181  * @type: type of match
 182  * @header_index: header index (packets can have several headers of same
 183  *                type like in case of tunnels)
 184  * @header: header
 185  * @fieled_id: field index
 186  */
 187 struct devlink_dpipe_match {
 188         enum devlink_dpipe_match_type type;
 189         unsigned int header_index;
 190         struct devlink_dpipe_header *header;
 191         unsigned int field_id;
 192 };
 193
 194 /**
 195  * struct devlink_dpipe_action - represents action operation
 196  * @type: type of action
 197  * @header_index: header index (packets can have several headers of same
 198  *                type like in case of tunnels)
 199  * @header: header
 200  * @fieled_id: field index
 201  */
 202 struct devlink_dpipe_action {
 203         enum devlink_dpipe_action_type type;
 204         unsigned int header_index;
 205         struct devlink_dpipe_header *header;
 206         unsigned int field_id;
 207 };
 208
 209 /**
 210  * struct devlink_dpipe_value - represents value of match/action
 211  * @action: action
 212  * @match: match
 213  * @mapping_value: in case the field has some mapping this value
 214  *                 specified the mapping value
 215  * @mapping_valid: specify if mapping value is valid
 216  * @value_size: value size
 217  * @value: value
 218  * @mask: bit mask
 219  */
 220 struct devlink_dpipe_value {
 221         union {
 222                 struct devlink_dpipe_action *action;
 223                 struct devlink_dpipe_match *match;
 224         };
 225         unsigned int mapping_value;
 226         bool mapping_valid;
 227         unsigned int value_size;
 228         void *value;
 229         void *mask;
 230 };
 231
 232 /**
 233  * struct devlink_dpipe_entry - table entry object
 234  * @index: index of the entry in the table
 235  * @match_values: match values
 236  * @matche_values_count: count of matches tuples
 237  * @action_values: actions values
 238  * @action_values_count: count of actions values
 239  * @counter: value of counter
 240  * @counter_valid: Specify if value is valid from hardware
 241  */
 242 struct devlink_dpipe_entry {
 243         u64 index;
 244         struct devlink_dpipe_value *match_values;
 245         unsigned int match_values_count;
 246         struct devlink_dpipe_value *action_values;
 247         unsigned int action_values_count;
 248         u64 counter;
 249         bool counter_valid;
 250 };
 251
 252 /**
 253  * struct devlink_dpipe_dump_ctx - context provided to driver in order
 254  *                                 to dump
 255  * @info: info
 256  * @cmd: devlink command
 257  * @skb: skb
 258  * @nest: top attribute
 259  * @hdr: hdr
 260  */
 261 struct devlink_dpipe_dump_ctx {
 262         struct genl_info *info;
 263         enum devlink_command cmd;
 264         struct sk_buff *skb;
 265         struct nlattr *nest;
 266         void *hdr;
 267 };
 268
 269 struct devlink_dpipe_table_ops;
 270
 271 /**
 272  * struct devlink_dpipe_table - table object
 273  * @priv: private
 274  * @name: table name
 275  * @counters_enabled: indicates if counters are active
 276  * @counter_control_extern: indicates if counter control is in dpipe or
 277  *                          external tool
 278  * @resource_valid: Indicate that the resource id is valid
 279  * @resource_id: relative resource this table is related to
 280  * @resource_units: number of resource's unit consumed per table's entry
 281  * @table_ops: table operations
 282  * @rcu: rcu
 283  */
 284 struct devlink_dpipe_table {
 285         void *priv;
 286         struct list_head list;
 287         const char *name;
 288         bool counters_enabled;
 289         bool counter_control_extern;
 290         bool resource_valid;
 291         u64 resource_id;
 292         u64 resource_units;
 293         struct devlink_dpipe_table_ops *table_ops;
 294         struct rcu_head rcu;
 295 };
 296
 297 /**
 298  * struct devlink_dpipe_table_ops - dpipe_table ops
 299  * @actions_dump - dumps all tables actions
 300  * @matches_dump - dumps all tables matches
 301  * @entries_dump - dumps all active entries in the table
 302  * @counters_set_update - when changing the counter status hardware sync
 303  *                        maybe needed to allocate/free counter related
 304  *                        resources
 305  * @size_get - get size
 306  */
 307 struct devlink_dpipe_table_ops {
 308         int (*actions_dump)(void *priv, struct sk_buff *skb);
 309         int (*matches_dump)(void *priv, struct sk_buff *skb);
 310         int (*entries_dump)(void *priv, bool counters_enabled,
 311                             struct devlink_dpipe_dump_ctx *dump_ctx);
 312         int (*counters_set_update)(void *priv, bool enable);
 313         u64 (*size_get)(void *priv);
 314 };
 315
 316 /**
 317  * struct devlink_dpipe_headers - dpipe headers
 318  * @headers - header array can be shared (global bit) or driver specific
 319  * @headers_count - count of headers
 320  */
 321 struct devlink_dpipe_headers {
 322         struct devlink_dpipe_header **headers;
 323         unsigned int headers_count;
 324 };
 325
 326 /**
 327  * struct devlink_resource_size_params - resource's size parameters
 328  * @size_min: minimum size which can be set
 329  * @size_max: maximum size which can be set
 330  * @size_granularity: size granularity
 331  * @size_unit: resource's basic unit
 332  */
 333 struct devlink_resource_size_params {
 334         u64 size_min;
 335         u64 size_max;
 336         u64 size_granularity;
 337         enum devlink_resource_unit unit;
 338 };
 339
 340 static inline void
 341 devlink_resource_size_params_init(struct devlink_resource_size_params *size_params,
 342                                   u64 size_min, u64 size_max,
 343                                   u64 size_granularity,
 344                                   enum devlink_resource_unit unit)
 345 {
 346         size_params->size_min = size_min;
 347         size_params->size_max = size_max;
 348         size_params->size_granularity = size_granularity;
 349         size_params->unit = unit;
 350 }
 351
 352 typedef u64 devlink_resource_occ_get_t(void *priv);
 353
 354 /**
 355  * struct devlink_resource - devlink resource
 356  * @name: name of the resource
 357  * @id: id, per devlink instance
 358  * @size: size of the resource
 359  * @size_new: updated size of the resource, reload is needed
 360  * @size_valid: valid in case the total size of the resource is valid
 361  *              including its children
 362  * @parent: parent resource
 363  * @size_params: size parameters
 364  * @list: parent list
 365  * @resource_list: list of child resources
 366  */
 367 struct devlink_resource {
 368         const char *name;
 369         u64 id;
 370         u64 size;
 371         u64 size_new;
 372         bool size_valid;
 373         struct devlink_resource *parent;
 374         struct devlink_resource_size_params size_params;
 375         struct list_head list;
 376         struct list_head resource_list;
 377         devlink_resource_occ_get_t *occ_get;
 378         void *occ_get_priv;
 379 };
 380
 381 #define DEVLINK_RESOURCE_ID_PARENT_TOP 0
 382
 383 #define __DEVLINK_PARAM_MAX_STRING_VALUE 32
 384 enum devlink_param_type {
 385         DEVLINK_PARAM_TYPE_U8,
 386         DEVLINK_PARAM_TYPE_U16,
 387         DEVLINK_PARAM_TYPE_U32,
 388         DEVLINK_PARAM_TYPE_STRING,
 389         DEVLINK_PARAM_TYPE_BOOL,
 390 };
 391
 392 union devlink_param_value {
 393         u8 vu8;
 394         u16 vu16;
 395         u32 vu32;
 396         char vstr[__DEVLINK_PARAM_MAX_STRING_VALUE];
 397         bool vbool;
 398 };
 399
 400 struct devlink_param_gset_ctx {
 401         union devlink_param_value val;
 402         enum devlink_param_cmode cmode;
 403 };
 404
 405 /**
 406  * struct devlink_flash_notify - devlink dev flash notify data
 407  * @status_msg: current status string
 408  * @component: firmware component being updated
 409  * @done: amount of work completed of total amount
 410  * @total: amount of work expected to be done
 411  * @timeout: expected max timeout in seconds
 412  *
 413  * These are values to be given to userland to be displayed in order
 414  * to show current activity in a firmware update process.
 415  */
 416 struct devlink_flash_notify {
 417         const char *status_msg;
 418         const char *component;
 419         unsigned long done;
 420         unsigned long total;
 421         unsigned long timeout;
 422 };
 423
 424 /**
 425  * struct devlink_param - devlink configuration parameter data
 426  * @name: name of the parameter
 427  * @generic: indicates if the parameter is generic or driver specific
 428  * @type: parameter type
 429  * @supported_cmodes: bitmap of supported configuration modes
 430  * @get: get parameter value, used for runtime and permanent
 431  *       configuration modes
 432  * @set: set parameter value, used for runtime and permanent
 433  *       configuration modes
 434  * @validate: validate input value is applicable (within value range, etc.)
 435  *
 436  * This struct should be used by the driver to fill the data for
 437  * a parameter it registers.
 438  */
 439 struct devlink_param {
 440         u32 id;
 441         const char *name;
 442         bool generic;
 443         enum devlink_param_type type;
 444         unsigned long supported_cmodes;
 445         int (*get)(struct devlink *devlink, u32 id,
 446                    struct devlink_param_gset_ctx *ctx);
 447         int (*set)(struct devlink *devlink, u32 id,
 448                    struct devlink_param_gset_ctx *ctx);
 449         int (*validate)(struct devlink *devlink, u32 id,
 450                         union devlink_param_value val,
 451                         struct netlink_ext_ack *extack);
 452 };
 453
 454 struct devlink_param_item {
 455         struct list_head list;
 456         const struct devlink_param *param;
 457         union devlink_param_value driverinit_value;
 458         bool driverinit_value_valid;
 459         bool published;
 460 };
 461
 462 enum devlink_param_generic_id {
 463         DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
 464         DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
 465         DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV,
 466         DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,
 467         DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI,
 468         DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
 469         DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
 470         DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
 471         DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE,
 472         DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
 473         DEVLINK_PARAM_GENERIC_ID_ENABLE_REMOTE_DEV_RESET,
 474
 475         /* add new param generic ids above here*/
 476         __DEVLINK_PARAM_GENERIC_ID_MAX,
 477         DEVLINK_PARAM_GENERIC_ID_MAX = __DEVLINK_PARAM_GENERIC_ID_MAX - 1,
 478 };
 479
 480 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME "internal_error_reset"
 481 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL
 482
 483 #define DEVLINK_PARAM_GENERIC_MAX_MACS_NAME "max_macs"
 484 #define DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE DEVLINK_PARAM_TYPE_U32
 485
 486 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME "enable_sriov"
 487 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE DEVLINK_PARAM_TYPE_BOOL
 488
 489 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME "region_snapshot_enable"
 490 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE DEVLINK_PARAM_TYPE_BOOL
 491
 492 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME "ignore_ari"
 493 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE DEVLINK_PARAM_TYPE_BOOL
 494
 495 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME "msix_vec_per_pf_max"
 496 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE DEVLINK_PARAM_TYPE_U32
 497
 498 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME "msix_vec_per_pf_min"
 499 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE DEVLINK_PARAM_TYPE_U32
 500
 501 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME "fw_load_policy"
 502 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE DEVLINK_PARAM_TYPE_U8
 503
 504 #define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME \
 505         "reset_dev_on_drv_probe"
 506 #define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE DEVLINK_PARAM_TYPE_U8
 507
 508 #define DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME "enable_roce"
 509 #define DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE DEVLINK_PARAM_TYPE_BOOL
 510
 511 #define DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_NAME "enable_remote_dev_reset"
 512 #define DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL
 513
 514 #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate)      \
 515 {                                                                       \
 516         .id = DEVLINK_PARAM_GENERIC_ID_##_id,                           \
 517         .name = DEVLINK_PARAM_GENERIC_##_id##_NAME,                     \
 518         .type = DEVLINK_PARAM_GENERIC_##_id##_TYPE,                     \
 519         .generic = true,                                                \
 520         .supported_cmodes = _cmodes,                                    \
 521         .get = _get,                                                    \
 522         .set = _set,                                                    \
 523         .validate = _validate,                                          \
 524 }
 525
 526 #define DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, _get, _set, _validate) \
 527 {                                                                       \
 528         .id = _id,                                                      \
 529         .name = _name,                                                  \
 530         .type = _type,                                                  \
 531         .supported_cmodes = _cmodes,                                    \
 532         .get = _get,                                                    \
 533         .set = _set,                                                    \
 534         .validate = _validate,                                          \
 535 }
 536
 537 /* Part number, identifier of board design */
 538 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_ID   "board.id"
 539 /* Revision of board design */
 540 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_REV  "board.rev"
 541 /* Maker of the board */
 542 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE  "board.manufacture"
 543
 544 /* Part number, identifier of asic design */
 545 #define DEVLINK_INFO_VERSION_GENERIC_ASIC_ID    "asic.id"
 546 /* Revision of asic design */
 547 #define DEVLINK_INFO_VERSION_GENERIC_ASIC_REV   "asic.rev"
 548
 549 /* Overall FW version */
 550 #define DEVLINK_INFO_VERSION_GENERIC_FW         "fw"
 551 /* Control processor FW version */
 552 #define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT    "fw.mgmt"
 553 /* FW interface specification version */
 554 #define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API        "fw.mgmt.api"
 555 /* Data path microcode controlling high-speed packet processing */
 556 #define DEVLINK_INFO_VERSION_GENERIC_FW_APP     "fw.app"
 557 /* UNDI software version */
 558 #define DEVLINK_INFO_VERSION_GENERIC_FW_UNDI    "fw.undi"
 559 /* NCSI support/handler version */
 560 #define DEVLINK_INFO_VERSION_GENERIC_FW_NCSI    "fw.ncsi"
 561 /* FW parameter set id */
 562 #define DEVLINK_INFO_VERSION_GENERIC_FW_PSID    "fw.psid"
 563 /* RoCE FW version */
 564 #define DEVLINK_INFO_VERSION_GENERIC_FW_ROCE    "fw.roce"
 565 /* Firmware bundle identifier */
 566 #define DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID       "fw.bundle_id"
 567
 568 /**
 569  * struct devlink_flash_update_params - Flash Update parameters
 570  * @fw: pointer to the firmware data to update from
 571  * @component: the flash component to update
 572  *
 573  * With the exception of fw, drivers must opt-in to parameters by
 574  * setting the appropriate bit in the supported_flash_update_params field in
 575  * their devlink_ops structure.
 576  */
 577 struct devlink_flash_update_params {
 578         const struct firmware *fw;
 579         const char *component;
 580         u32 overwrite_mask;
 581 };
 582
 583 #define DEVLINK_SUPPORT_FLASH_UPDATE_COMPONENT          BIT(0)
 584 #define DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK     BIT(1)
 585
 586 struct devlink_region;
 587 struct devlink_info_req;
 588
 589 /**
 590  * struct devlink_region_ops - Region operations
 591  * @name: region name
 592  * @destructor: callback used to free snapshot memory when deleting
 593  * @snapshot: callback to request an immediate snapshot. On success,
 594  *            the data variable must be updated to point to the snapshot data.
 595  *            The function will be called while the devlink instance lock is
 596  *            held.
 597  * @priv: Pointer to driver private data for the region operation
 598  */
 599 struct devlink_region_ops {
 600         const char *name;
 601         void (*destructor)(const void *data);
 602         int (*snapshot)(struct devlink *devlink,
 603                         const struct devlink_region_ops *ops,
 604                         struct netlink_ext_ack *extack,
 605                         u8 **data);
 606         void *priv;
 607 };
 608
 609 /**
 610  * struct devlink_port_region_ops - Region operations for a port
 611  * @name: region name
 612  * @destructor: callback used to free snapshot memory when deleting
 613  * @snapshot: callback to request an immediate snapshot. On success,
 614  *            the data variable must be updated to point to the snapshot data.
 615  *            The function will be called while the devlink instance lock is
 616  *            held.
 617  * @priv: Pointer to driver private data for the region operation
 618  */
 619 struct devlink_port_region_ops {
 620         const char *name;
 621         void (*destructor)(const void *data);
 622         int (*snapshot)(struct devlink_port *port,
 623                         const struct devlink_port_region_ops *ops,
 624                         struct netlink_ext_ack *extack,
 625                         u8 **data);
 626         void *priv;
 627 };
 628
 629 struct devlink_fmsg;
 630 struct devlink_health_reporter;
 631
 632 enum devlink_health_reporter_state {
 633         DEVLINK_HEALTH_REPORTER_STATE_HEALTHY,
 634         DEVLINK_HEALTH_REPORTER_STATE_ERROR,
 635 };
 636
 637 /**
 638  * struct devlink_health_reporter_ops - Reporter operations
 639  * @name: reporter name
 640  * @recover: callback to recover from reported error
 641  *           if priv_ctx is NULL, run a full recover
 642  * @dump: callback to dump an object
 643  *        if priv_ctx is NULL, run a full dump
 644  * @diagnose: callback to diagnose the current status
 645  * @test: callback to trigger a test event
 646  */
 647
 648 struct devlink_health_reporter_ops {
 649         char *name;
 650         int (*recover)(struct devlink_health_reporter *reporter,
 651                        void *priv_ctx, struct netlink_ext_ack *extack);
 652         int (*dump)(struct devlink_health_reporter *reporter,
 653                     struct devlink_fmsg *fmsg, void *priv_ctx,
 654                     struct netlink_ext_ack *extack);
 655         int (*diagnose)(struct devlink_health_reporter *reporter,
 656                         struct devlink_fmsg *fmsg,
 657                         struct netlink_ext_ack *extack);
 658         int (*test)(struct devlink_health_reporter *reporter,
 659                     struct netlink_ext_ack *extack);
 660 };
 661
 662 /**
 663  * struct devlink_trap_metadata - Packet trap metadata.
 664  * @trap_name: Trap name.
 665  * @trap_group_name: Trap group name.
 666  * @input_dev: Input netdevice.
 667  * @fa_cookie: Flow action user cookie.
 668  * @trap_type: Trap type.
 669  */
 670 struct devlink_trap_metadata {
 671         const char *trap_name;
 672         const char *trap_group_name;
 673         struct net_device *input_dev;
 674         const struct flow_action_cookie *fa_cookie;
 675         enum devlink_trap_type trap_type;
 676 };
 677
 678 /**
 679  * struct devlink_trap_policer - Immutable packet trap policer attributes.
 680  * @id: Policer identifier.
 681  * @init_rate: Initial rate in packets / sec.
 682  * @init_burst: Initial burst size in packets.
 683  * @max_rate: Maximum rate.
 684  * @min_rate: Minimum rate.
 685  * @max_burst: Maximum burst size.
 686  * @min_burst: Minimum burst size.
 687  *
 688  * Describes immutable attributes of packet trap policers that drivers register
 689  * with devlink.
 690  */
 691 struct devlink_trap_policer {
 692         u32 id;
 693         u64 init_rate;
 694         u64 init_burst;
 695         u64 max_rate;
 696         u64 min_rate;
 697         u64 max_burst;
 698         u64 min_burst;
 699 };
 700
 701 /**
 702  * struct devlink_trap_group - Immutable packet trap group attributes.
 703  * @name: Trap group name.
 704  * @id: Trap group identifier.
 705  * @generic: Whether the trap group is generic or not.
 706  * @init_policer_id: Initial policer identifier.
 707  *
 708  * Describes immutable attributes of packet trap groups that drivers register
 709  * with devlink.
 710  */
 711 struct devlink_trap_group {
 712         const char *name;
 713         u16 id;
 714         bool generic;
 715         u32 init_policer_id;
 716 };
 717
 718 #define DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT    BIT(0)
 719 #define DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE  BIT(1)
 720
 721 /**
 722  * struct devlink_trap - Immutable packet trap attributes.
 723  * @type: Trap type.
 724  * @init_action: Initial trap action.
 725  * @generic: Whether the trap is generic or not.
 726  * @id: Trap identifier.
 727  * @name: Trap name.
 728  * @init_group_id: Initial group identifier.
 729  * @metadata_cap: Metadata types that can be provided by the trap.
 730  *
 731  * Describes immutable attributes of packet traps that drivers register with
 732  * devlink.
 733  */
 734 struct devlink_trap {
 735         enum devlink_trap_type type;
 736         enum devlink_trap_action init_action;
 737         bool generic;
 738         u16 id;
 739         const char *name;
 740         u16 init_group_id;
 741         u32 metadata_cap;
 742 };
 743
 744 /* All traps must be documented in
 745  * Documentation/networking/devlink/devlink-trap.rst
 746  */
 747 enum devlink_trap_generic_id {
 748         DEVLINK_TRAP_GENERIC_ID_SMAC_MC,
 749         DEVLINK_TRAP_GENERIC_ID_VLAN_TAG_MISMATCH,
 750         DEVLINK_TRAP_GENERIC_ID_INGRESS_VLAN_FILTER,
 751         DEVLINK_TRAP_GENERIC_ID_INGRESS_STP_FILTER,
 752         DEVLINK_TRAP_GENERIC_ID_EMPTY_TX_LIST,
 753         DEVLINK_TRAP_GENERIC_ID_PORT_LOOPBACK_FILTER,
 754         DEVLINK_TRAP_GENERIC_ID_BLACKHOLE_ROUTE,
 755         DEVLINK_TRAP_GENERIC_ID_TTL_ERROR,
 756         DEVLINK_TRAP_GENERIC_ID_TAIL_DROP,
 757         DEVLINK_TRAP_GENERIC_ID_NON_IP_PACKET,
 758         DEVLINK_TRAP_GENERIC_ID_UC_DIP_MC_DMAC,
 759         DEVLINK_TRAP_GENERIC_ID_DIP_LB,
 760         DEVLINK_TRAP_GENERIC_ID_SIP_MC,
 761         DEVLINK_TRAP_GENERIC_ID_SIP_LB,
 762         DEVLINK_TRAP_GENERIC_ID_CORRUPTED_IP_HDR,
 763         DEVLINK_TRAP_GENERIC_ID_IPV4_SIP_BC,
 764         DEVLINK_TRAP_GENERIC_ID_IPV6_MC_DIP_RESERVED_SCOPE,
 765         DEVLINK_TRAP_GENERIC_ID_IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE,
 766         DEVLINK_TRAP_GENERIC_ID_MTU_ERROR,
 767         DEVLINK_TRAP_GENERIC_ID_UNRESOLVED_NEIGH,
 768         DEVLINK_TRAP_GENERIC_ID_RPF,
 769         DEVLINK_TRAP_GENERIC_ID_REJECT_ROUTE,
 770         DEVLINK_TRAP_GENERIC_ID_IPV4_LPM_UNICAST_MISS,
 771         DEVLINK_TRAP_GENERIC_ID_IPV6_LPM_UNICAST_MISS,
 772         DEVLINK_TRAP_GENERIC_ID_NON_ROUTABLE,
 773         DEVLINK_TRAP_GENERIC_ID_DECAP_ERROR,
 774         DEVLINK_TRAP_GENERIC_ID_OVERLAY_SMAC_MC,
 775         DEVLINK_TRAP_GENERIC_ID_INGRESS_FLOW_ACTION_DROP,
 776         DEVLINK_TRAP_GENERIC_ID_EGRESS_FLOW_ACTION_DROP,
 777         DEVLINK_TRAP_GENERIC_ID_STP,
 778         DEVLINK_TRAP_GENERIC_ID_LACP,
 779         DEVLINK_TRAP_GENERIC_ID_LLDP,
 780         DEVLINK_TRAP_GENERIC_ID_IGMP_QUERY,
 781         DEVLINK_TRAP_GENERIC_ID_IGMP_V1_REPORT,
 782         DEVLINK_TRAP_GENERIC_ID_IGMP_V2_REPORT,
 783         DEVLINK_TRAP_GENERIC_ID_IGMP_V3_REPORT,
 784         DEVLINK_TRAP_GENERIC_ID_IGMP_V2_LEAVE,
 785         DEVLINK_TRAP_GENERIC_ID_MLD_QUERY,
 786         DEVLINK_TRAP_GENERIC_ID_MLD_V1_REPORT,
 787         DEVLINK_TRAP_GENERIC_ID_MLD_V2_REPORT,
 788         DEVLINK_TRAP_GENERIC_ID_MLD_V1_DONE,
 789         DEVLINK_TRAP_GENERIC_ID_IPV4_DHCP,
 790         DEVLINK_TRAP_GENERIC_ID_IPV6_DHCP,
 791         DEVLINK_TRAP_GENERIC_ID_ARP_REQUEST,
 792         DEVLINK_TRAP_GENERIC_ID_ARP_RESPONSE,
 793         DEVLINK_TRAP_GENERIC_ID_ARP_OVERLAY,
 794         DEVLINK_TRAP_GENERIC_ID_IPV6_NEIGH_SOLICIT,
 795         DEVLINK_TRAP_GENERIC_ID_IPV6_NEIGH_ADVERT,
 796         DEVLINK_TRAP_GENERIC_ID_IPV4_BFD,
 797         DEVLINK_TRAP_GENERIC_ID_IPV6_BFD,
 798         DEVLINK_TRAP_GENERIC_ID_IPV4_OSPF,
 799         DEVLINK_TRAP_GENERIC_ID_IPV6_OSPF,
 800         DEVLINK_TRAP_GENERIC_ID_IPV4_BGP,
 801         DEVLINK_TRAP_GENERIC_ID_IPV6_BGP,
 802         DEVLINK_TRAP_GENERIC_ID_IPV4_VRRP,
 803         DEVLINK_TRAP_GENERIC_ID_IPV6_VRRP,
 804         DEVLINK_TRAP_GENERIC_ID_IPV4_PIM,
 805         DEVLINK_TRAP_GENERIC_ID_IPV6_PIM,
 806         DEVLINK_TRAP_GENERIC_ID_UC_LB,
 807         DEVLINK_TRAP_GENERIC_ID_LOCAL_ROUTE,
 808         DEVLINK_TRAP_GENERIC_ID_EXTERNAL_ROUTE,
 809         DEVLINK_TRAP_GENERIC_ID_IPV6_UC_DIP_LINK_LOCAL_SCOPE,
 810         DEVLINK_TRAP_GENERIC_ID_IPV6_DIP_ALL_NODES,
 811         DEVLINK_TRAP_GENERIC_ID_IPV6_DIP_ALL_ROUTERS,
 812         DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_SOLICIT,
 813         DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_ADVERT,
 814         DEVLINK_TRAP_GENERIC_ID_IPV6_REDIRECT,
 815         DEVLINK_TRAP_GENERIC_ID_IPV4_ROUTER_ALERT,
 816         DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_ALERT,
 817         DEVLINK_TRAP_GENERIC_ID_PTP_EVENT,
 818         DEVLINK_TRAP_GENERIC_ID_PTP_GENERAL,
 819         DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_SAMPLE,
 820         DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_TRAP,
 821         DEVLINK_TRAP_GENERIC_ID_EARLY_DROP,
 822         DEVLINK_TRAP_GENERIC_ID_VXLAN_PARSING,
 823         DEVLINK_TRAP_GENERIC_ID_LLC_SNAP_PARSING,
 824         DEVLINK_TRAP_GENERIC_ID_VLAN_PARSING,
 825         DEVLINK_TRAP_GENERIC_ID_PPPOE_PPP_PARSING,
 826         DEVLINK_TRAP_GENERIC_ID_MPLS_PARSING,
 827         DEVLINK_TRAP_GENERIC_ID_ARP_PARSING,
 828         DEVLINK_TRAP_GENERIC_ID_IP_1_PARSING,
 829         DEVLINK_TRAP_GENERIC_ID_IP_N_PARSING,
 830         DEVLINK_TRAP_GENERIC_ID_GRE_PARSING,
 831         DEVLINK_TRAP_GENERIC_ID_UDP_PARSING,
 832         DEVLINK_TRAP_GENERIC_ID_TCP_PARSING,
 833         DEVLINK_TRAP_GENERIC_ID_IPSEC_PARSING,
 834         DEVLINK_TRAP_GENERIC_ID_SCTP_PARSING,
 835         DEVLINK_TRAP_GENERIC_ID_DCCP_PARSING,
 836         DEVLINK_TRAP_GENERIC_ID_GTP_PARSING,
 837         DEVLINK_TRAP_GENERIC_ID_ESP_PARSING,
 838         DEVLINK_TRAP_GENERIC_ID_BLACKHOLE_NEXTHOP,
 839
 840         /* Add new generic trap IDs above */
 841         __DEVLINK_TRAP_GENERIC_ID_MAX,
 842         DEVLINK_TRAP_GENERIC_ID_MAX = __DEVLINK_TRAP_GENERIC_ID_MAX - 1,
 843 };
 844
 845 /* All trap groups must be documented in
 846  * Documentation/networking/devlink/devlink-trap.rst
 847  */
 848 enum devlink_trap_group_generic_id {
 849         DEVLINK_TRAP_GROUP_GENERIC_ID_L2_DROPS,
 850         DEVLINK_TRAP_GROUP_GENERIC_ID_L3_DROPS,
 851         DEVLINK_TRAP_GROUP_GENERIC_ID_L3_EXCEPTIONS,
 852         DEVLINK_TRAP_GROUP_GENERIC_ID_BUFFER_DROPS,
 853         DEVLINK_TRAP_GROUP_GENERIC_ID_TUNNEL_DROPS,
 854         DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_DROPS,
 855         DEVLINK_TRAP_GROUP_GENERIC_ID_STP,
 856         DEVLINK_TRAP_GROUP_GENERIC_ID_LACP,
 857         DEVLINK_TRAP_GROUP_GENERIC_ID_LLDP,
 858         DEVLINK_TRAP_GROUP_GENERIC_ID_MC_SNOOPING,
 859         DEVLINK_TRAP_GROUP_GENERIC_ID_DHCP,
 860         DEVLINK_TRAP_GROUP_GENERIC_ID_NEIGH_DISCOVERY,
 861         DEVLINK_TRAP_GROUP_GENERIC_ID_BFD,
 862         DEVLINK_TRAP_GROUP_GENERIC_ID_OSPF,
 863         DEVLINK_TRAP_GROUP_GENERIC_ID_BGP,
 864         DEVLINK_TRAP_GROUP_GENERIC_ID_VRRP,
 865         DEVLINK_TRAP_GROUP_GENERIC_ID_PIM,
 866         DEVLINK_TRAP_GROUP_GENERIC_ID_UC_LB,
 867         DEVLINK_TRAP_GROUP_GENERIC_ID_LOCAL_DELIVERY,
 868         DEVLINK_TRAP_GROUP_GENERIC_ID_EXTERNAL_DELIVERY,
 869         DEVLINK_TRAP_GROUP_GENERIC_ID_IPV6,
 870         DEVLINK_TRAP_GROUP_GENERIC_ID_PTP_EVENT,
 871         DEVLINK_TRAP_GROUP_GENERIC_ID_PTP_GENERAL,
 872         DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_SAMPLE,
 873         DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_TRAP,
 874         DEVLINK_TRAP_GROUP_GENERIC_ID_PARSER_ERROR_DROPS,
 875
 876         /* Add new generic trap group IDs above */
 877         __DEVLINK_TRAP_GROUP_GENERIC_ID_MAX,
 878         DEVLINK_TRAP_GROUP_GENERIC_ID_MAX =
 879                 __DEVLINK_TRAP_GROUP_GENERIC_ID_MAX - 1,
 880 };
 881
 882 #define DEVLINK_TRAP_GENERIC_NAME_SMAC_MC \
 883         "source_mac_is_multicast"
 884 #define DEVLINK_TRAP_GENERIC_NAME_VLAN_TAG_MISMATCH \
 885         "vlan_tag_mismatch"
 886 #define DEVLINK_TRAP_GENERIC_NAME_INGRESS_VLAN_FILTER \
 887         "ingress_vlan_filter"
 888 #define DEVLINK_TRAP_GENERIC_NAME_INGRESS_STP_FILTER \
 889         "ingress_spanning_tree_filter"
 890 #define DEVLINK_TRAP_GENERIC_NAME_EMPTY_TX_LIST \
 891         "port_list_is_empty"
 892 #define DEVLINK_TRAP_GENERIC_NAME_PORT_LOOPBACK_FILTER \
 893         "port_loopback_filter"
 894 #define DEVLINK_TRAP_GENERIC_NAME_BLACKHOLE_ROUTE \
 895         "blackhole_route"
 896 #define DEVLINK_TRAP_GENERIC_NAME_TTL_ERROR \
 897         "ttl_value_is_too_small"
 898 #define DEVLINK_TRAP_GENERIC_NAME_TAIL_DROP \
 899         "tail_drop"
 900 #define DEVLINK_TRAP_GENERIC_NAME_NON_IP_PACKET \
 901         "non_ip"
 902 #define DEVLINK_TRAP_GENERIC_NAME_UC_DIP_MC_DMAC \
 903         "uc_dip_over_mc_dmac"
 904 #define DEVLINK_TRAP_GENERIC_NAME_DIP_LB \
 905         "dip_is_loopback_address"
 906 #define DEVLINK_TRAP_GENERIC_NAME_SIP_MC \
 907         "sip_is_mc"
 908 #define DEVLINK_TRAP_GENERIC_NAME_SIP_LB \
 909         "sip_is_loopback_address"
 910 #define DEVLINK_TRAP_GENERIC_NAME_CORRUPTED_IP_HDR \
 911         "ip_header_corrupted"
 912 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_SIP_BC \
 913         "ipv4_sip_is_limited_bc"
 914 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_MC_DIP_RESERVED_SCOPE \
 915         "ipv6_mc_dip_reserved_scope"
 916 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE \
 917         "ipv6_mc_dip_interface_local_scope"
 918 #define DEVLINK_TRAP_GENERIC_NAME_MTU_ERROR \
 919         "mtu_value_is_too_small"
 920 #define DEVLINK_TRAP_GENERIC_NAME_UNRESOLVED_NEIGH \
 921         "unresolved_neigh"
 922 #define DEVLINK_TRAP_GENERIC_NAME_RPF \
 923         "mc_reverse_path_forwarding"
 924 #define DEVLINK_TRAP_GENERIC_NAME_REJECT_ROUTE \
 925         "reject_route"
 926 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_LPM_UNICAST_MISS \
 927         "ipv4_lpm_miss"
 928 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_LPM_UNICAST_MISS \
 929         "ipv6_lpm_miss"
 930 #define DEVLINK_TRAP_GENERIC_NAME_NON_ROUTABLE \
 931         "non_routable_packet"
 932 #define DEVLINK_TRAP_GENERIC_NAME_DECAP_ERROR \
 933         "decap_error"
 934 #define DEVLINK_TRAP_GENERIC_NAME_OVERLAY_SMAC_MC \
 935         "overlay_smac_is_mc"
 936 #define DEVLINK_TRAP_GENERIC_NAME_INGRESS_FLOW_ACTION_DROP \
 937         "ingress_flow_action_drop"
 938 #define DEVLINK_TRAP_GENERIC_NAME_EGRESS_FLOW_ACTION_DROP \
 939         "egress_flow_action_drop"
 940 #define DEVLINK_TRAP_GENERIC_NAME_STP \
 941         "stp"
 942 #define DEVLINK_TRAP_GENERIC_NAME_LACP \
 943         "lacp"
 944 #define DEVLINK_TRAP_GENERIC_NAME_LLDP \
 945         "lldp"
 946 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_QUERY \
 947         "igmp_query"
 948 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V1_REPORT \
 949         "igmp_v1_report"
 950 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V2_REPORT \
 951         "igmp_v2_report"
 952 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V3_REPORT \
 953         "igmp_v3_report"
 954 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V2_LEAVE \
 955         "igmp_v2_leave"
 956 #define DEVLINK_TRAP_GENERIC_NAME_MLD_QUERY \
 957         "mld_query"
 958 #define DEVLINK_TRAP_GENERIC_NAME_MLD_V1_REPORT \
 959         "mld_v1_report"
 960 #define DEVLINK_TRAP_GENERIC_NAME_MLD_V2_REPORT \
 961         "mld_v2_report"
 962 #define DEVLINK_TRAP_GENERIC_NAME_MLD_V1_DONE \
 963         "mld_v1_done"
 964 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_DHCP \
 965         "ipv4_dhcp"
 966 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_DHCP \
 967         "ipv6_dhcp"
 968 #define DEVLINK_TRAP_GENERIC_NAME_ARP_REQUEST \
 969         "arp_request"
 970 #define DEVLINK_TRAP_GENERIC_NAME_ARP_RESPONSE \
 971         "arp_response"
 972 #define DEVLINK_TRAP_GENERIC_NAME_ARP_OVERLAY \
 973         "arp_overlay"
 974 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_NEIGH_SOLICIT \
 975         "ipv6_neigh_solicit"
 976 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_NEIGH_ADVERT \
 977         "ipv6_neigh_advert"
 978 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_BFD \
 979         "ipv4_bfd"
 980 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_BFD \
 981         "ipv6_bfd"
 982 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_OSPF \
 983         "ipv4_ospf"
 984 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_OSPF \
 985         "ipv6_ospf"
 986 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_BGP \
 987         "ipv4_bgp"
 988 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_BGP \
 989         "ipv6_bgp"
 990 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_VRRP \
 991         "ipv4_vrrp"
 992 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_VRRP \
 993         "ipv6_vrrp"
 994 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_PIM \
 995         "ipv4_pim"
 996 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_PIM \
 997         "ipv6_pim"
 998 #define DEVLINK_TRAP_GENERIC_NAME_UC_LB \
 999         "uc_loopback"
1000 #define DEVLINK_TRAP_GENERIC_NAME_LOCAL_ROUTE \
1001         "local_route"
1002 #define DEVLINK_TRAP_GENERIC_NAME_EXTERNAL_ROUTE \
1003         "external_route"
1004 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_UC_DIP_LINK_LOCAL_SCOPE \
1005         "ipv6_uc_dip_link_local_scope"
1006 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_DIP_ALL_NODES \
1007         "ipv6_dip_all_nodes"
1008 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_DIP_ALL_ROUTERS \
1009         "ipv6_dip_all_routers"
1010 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_SOLICIT \
1011         "ipv6_router_solicit"
1012 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_ADVERT \
1013         "ipv6_router_advert"
1014 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_REDIRECT \
1015         "ipv6_redirect"
1016 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_ROUTER_ALERT \
1017         "ipv4_router_alert"
1018 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_ALERT \
1019         "ipv6_router_alert"
1020 #define DEVLINK_TRAP_GENERIC_NAME_PTP_EVENT \
1021         "ptp_event"
1022 #define DEVLINK_TRAP_GENERIC_NAME_PTP_GENERAL \
1023         "ptp_general"
1024 #define DEVLINK_TRAP_GENERIC_NAME_FLOW_ACTION_SAMPLE \
1025         "flow_action_sample"
1026 #define DEVLINK_TRAP_GENERIC_NAME_FLOW_ACTION_TRAP \
1027         "flow_action_trap"
1028 #define DEVLINK_TRAP_GENERIC_NAME_EARLY_DROP \
1029         "early_drop"
1030 #define DEVLINK_TRAP_GENERIC_NAME_VXLAN_PARSING \
1031         "vxlan_parsing"
1032 #define DEVLINK_TRAP_GENERIC_NAME_LLC_SNAP_PARSING \
1033         "llc_snap_parsing"
1034 #define DEVLINK_TRAP_GENERIC_NAME_VLAN_PARSING \
1035         "vlan_parsing"
1036 #define DEVLINK_TRAP_GENERIC_NAME_PPPOE_PPP_PARSING \
1037         "pppoe_ppp_parsing"
1038 #define DEVLINK_TRAP_GENERIC_NAME_MPLS_PARSING \
1039         "mpls_parsing"
1040 #define DEVLINK_TRAP_GENERIC_NAME_ARP_PARSING \
1041         "arp_parsing"
1042 #define DEVLINK_TRAP_GENERIC_NAME_IP_1_PARSING \
1043         "ip_1_parsing"
1044 #define DEVLINK_TRAP_GENERIC_NAME_IP_N_PARSING \
1045         "ip_n_parsing"
1046 #define DEVLINK_TRAP_GENERIC_NAME_GRE_PARSING \
1047         "gre_parsing"
1048 #define DEVLINK_TRAP_GENERIC_NAME_UDP_PARSING \
1049         "udp_parsing"
1050 #define DEVLINK_TRAP_GENERIC_NAME_TCP_PARSING \
1051         "tcp_parsing"
1052 #define DEVLINK_TRAP_GENERIC_NAME_IPSEC_PARSING \
1053         "ipsec_parsing"
1054 #define DEVLINK_TRAP_GENERIC_NAME_SCTP_PARSING \
1055         "sctp_parsing"
1056 #define DEVLINK_TRAP_GENERIC_NAME_DCCP_PARSING \
1057         "dccp_parsing"
1058 #define DEVLINK_TRAP_GENERIC_NAME_GTP_PARSING \
1059         "gtp_parsing"
1060 #define DEVLINK_TRAP_GENERIC_NAME_ESP_PARSING \
1061         "esp_parsing"
1062 #define DEVLINK_TRAP_GENERIC_NAME_BLACKHOLE_NEXTHOP \
1063         "blackhole_nexthop"
1064
1065 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \
1066         "l2_drops"
1067 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_DROPS \
1068         "l3_drops"
1069 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_EXCEPTIONS \
1070         "l3_exceptions"
1071 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_BUFFER_DROPS \
1072         "buffer_drops"
1073 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_TUNNEL_DROPS \
1074         "tunnel_drops"
1075 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_DROPS \
1076         "acl_drops"
1077 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_STP \
1078         "stp"
1079 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_LACP \
1080         "lacp"
1081 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_LLDP \
1082         "lldp"
1083 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_MC_SNOOPING  \
1084         "mc_snooping"
1085 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_DHCP \
1086         "dhcp"
1087 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_NEIGH_DISCOVERY \
1088         "neigh_discovery"
1089 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_BFD \
1090         "bfd"
1091 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_OSPF \
1092         "ospf"
1093 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_BGP \
1094         "bgp"
1095 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_VRRP \
1096         "vrrp"
1097 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PIM \
1098         "pim"
1099 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_UC_LB \
1100         "uc_loopback"
1101 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_LOCAL_DELIVERY \
1102         "local_delivery"
1103 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_EXTERNAL_DELIVERY \
1104         "external_delivery"
1105 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_IPV6 \
1106         "ipv6"
1107 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PTP_EVENT \
1108         "ptp_event"
1109 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PTP_GENERAL \
1110         "ptp_general"
1111 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_SAMPLE \
1112         "acl_sample"
1113 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_TRAP \
1114         "acl_trap"
1115 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PARSER_ERROR_DROPS \
1116         "parser_error_drops"
1117
1118 #define DEVLINK_TRAP_GENERIC(_type, _init_action, _id, _group_id,             \
1119                              _metadata_cap)                                   \
1120         {                                                                     \
1121                 .type = DEVLINK_TRAP_TYPE_##_type,                            \
1122                 .init_action = DEVLINK_TRAP_ACTION_##_init_action,            \
1123                 .generic = true,                                              \
1124                 .id = DEVLINK_TRAP_GENERIC_ID_##_id,                          \
1125                 .name = DEVLINK_TRAP_GENERIC_NAME_##_id,                      \
1126                 .init_group_id = _group_id,                                   \
1127                 .metadata_cap = _metadata_cap,                                \
1128         }
1129
1130 #define DEVLINK_TRAP_DRIVER(_type, _init_action, _id, _name, _group_id,       \
1131                             _metadata_cap)                                    \
1132         {                                                                     \
1133                 .type = DEVLINK_TRAP_TYPE_##_type,                            \
1134                 .init_action = DEVLINK_TRAP_ACTION_##_init_action,            \
1135                 .generic = false,                                             \
1136                 .id = _id,                                                    \
1137                 .name = _name,                                                \
1138                 .init_group_id = _group_id,                                   \
1139                 .metadata_cap = _metadata_cap,                                \
1140         }
1141
1142 #define DEVLINK_TRAP_GROUP_GENERIC(_id, _policer_id)                          \
1143         {                                                                     \
1144                 .name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id,                \
1145                 .id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id,                    \
1146                 .generic = true,                                              \
1147                 .init_policer_id = _policer_id,                               \
1148         }
1149
1150 #define DEVLINK_TRAP_POLICER(_id, _rate, _burst, _max_rate, _min_rate,        \
1151                              _max_burst, _min_burst)                          \
1152         {                                                                     \
1153                 .id = _id,                                                    \
1154                 .init_rate = _rate,                                           \
1155                 .init_burst = _burst,                                         \
1156                 .max_rate = _max_rate,                                        \
1157                 .min_rate = _min_rate,                                        \
1158                 .max_burst = _max_burst,                                      \
1159                 .min_burst = _min_burst,                                      \
1160         }
1161
1162 struct devlink_ops {
1163         /**
1164          * @supported_flash_update_params:
1165          * mask of parameters supported by the driver's .flash_update
1166          * implemementation.
1167          */
1168         u32 supported_flash_update_params;
1169         unsigned long reload_actions;
1170         unsigned long reload_limits;
1171         int (*reload_down)(struct devlink *devlink, bool netns_change,
1172                            enum devlink_reload_action action,
1173                            enum devlink_reload_limit limit,
1174                            struct netlink_ext_ack *extack);
1175         int (*reload_up)(struct devlink *devlink, enum devlink_reload_action action,
1176                          enum devlink_reload_limit limit, u32 *actions_performed,
1177                          struct netlink_ext_ack *extack);
1178         int (*port_type_set)(struct devlink_port *devlink_port,
1179                              enum devlink_port_type port_type);
1180         int (*port_split)(struct devlink *devlink, unsigned int port_index,
1181                           unsigned int count, struct netlink_ext_ack *extack);
1182         int (*port_unsplit)(struct devlink *devlink, unsigned int port_index,
1183                             struct netlink_ext_ack *extack);
1184         int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index,
1185                            u16 pool_index,
1186                            struct devlink_sb_pool_info *pool_info);
1187         int (*sb_pool_set)(struct devlink *devlink, unsigned int sb_index,
1188                            u16 pool_index, u32 size,
1189                            enum devlink_sb_threshold_type threshold_type,
1190                            struct netlink_ext_ack *extack);
1191         int (*sb_port_pool_get)(struct devlink_port *devlink_port,
1192                                 unsigned int sb_index, u16 pool_index,
1193                                 u32 *p_threshold);
1194         int (*sb_port_pool_set)(struct devlink_port *devlink_port,
1195                                 unsigned int sb_index, u16 pool_index,
1196                                 u32 threshold, struct netlink_ext_ack *extack);
1197         int (*sb_tc_pool_bind_get)(struct devlink_port *devlink_port,
1198                                    unsigned int sb_index,
1199                                    u16 tc_index,
1200                                    enum devlink_sb_pool_type pool_type,
1201                                    u16 *p_pool_index, u32 *p_threshold);
1202         int (*sb_tc_pool_bind_set)(struct devlink_port *devlink_port,
1203                                    unsigned int sb_index,
1204                                    u16 tc_index,
1205                                    enum devlink_sb_pool_type pool_type,
1206                                    u16 pool_index, u32 threshold,
1207                                    struct netlink_ext_ack *extack);
1208         int (*sb_occ_snapshot)(struct devlink *devlink,
1209                                unsigned int sb_index);
1210         int (*sb_occ_max_clear)(struct devlink *devlink,
1211                                 unsigned int sb_index);
1212         int (*sb_occ_port_pool_get)(struct devlink_port *devlink_port,
1213                                     unsigned int sb_index, u16 pool_index,
1214                                     u32 *p_cur, u32 *p_max);
1215         int (*sb_occ_tc_port_bind_get)(struct devlink_port *devlink_port,
1216                                        unsigned int sb_index,
1217                                        u16 tc_index,
1218                                        enum devlink_sb_pool_type pool_type,
1219                                        u32 *p_cur, u32 *p_max);
1220
1221         int (*eswitch_mode_get)(struct devlink *devlink, u16 *p_mode);
1222         int (*eswitch_mode_set)(struct devlink *devlink, u16 mode,
1223                                 struct netlink_ext_ack *extack);
1224         int (*eswitch_inline_mode_get)(struct devlink *devlink, u8 *p_inline_mode);
1225         int (*eswitch_inline_mode_set)(struct devlink *devlink, u8 inline_mode,
1226                                        struct netlink_ext_ack *extack);
1227         int (*eswitch_encap_mode_get)(struct devlink *devlink,
1228                                       enum devlink_eswitch_encap_mode *p_encap_mode);
1229         int (*eswitch_encap_mode_set)(struct devlink *devlink,
1230                                       enum devlink_eswitch_encap_mode encap_mode,
1231                                       struct netlink_ext_ack *extack);
1232         int (*info_get)(struct devlink *devlink, struct devlink_info_req *req,
1233                         struct netlink_ext_ack *extack);
1234         /**
1235          * @flash_update: Device flash update function
1236          *
1237          * Used to perform a flash update for the device. The set of
1238          * parameters supported by the driver should be set in
1239          * supported_flash_update_params.
1240          */
1241         int (*flash_update)(struct devlink *devlink,
1242                             struct devlink_flash_update_params *params,
1243                             struct netlink_ext_ack *extack);
1244         /**
1245          * @trap_init: Trap initialization function.
1246          *
1247          * Should be used by device drivers to initialize the trap in the
1248          * underlying device. Drivers should also store the provided trap
1249          * context, so that they could efficiently pass it to
1250          * devlink_trap_report() when the trap is triggered.
1251          */
1252         int (*trap_init)(struct devlink *devlink,
1253                          const struct devlink_trap *trap, void *trap_ctx);
1254         /**
1255          * @trap_fini: Trap de-initialization function.
1256          *
1257          * Should be used by device drivers to de-initialize the trap in the
1258          * underlying device.
1259          */
1260         void (*trap_fini)(struct devlink *devlink,
1261                           const struct devlink_trap *trap, void *trap_ctx);
1262         /**
1263          * @trap_action_set: Trap action set function.
1264          */
1265         int (*trap_action_set)(struct devlink *devlink,
1266                                const struct devlink_trap *trap,
1267                                enum devlink_trap_action action,
1268                                struct netlink_ext_ack *extack);
1269         /**
1270          * @trap_group_init: Trap group initialization function.
1271          *
1272          * Should be used by device drivers to initialize the trap group in the
1273          * underlying device.
1274          */
1275         int (*trap_group_init)(struct devlink *devlink,
1276                                const struct devlink_trap_group *group);
1277         /**
1278          * @trap_group_set: Trap group parameters set function.
1279          *
1280          * Note: @policer can be NULL when a policer is being unbound from
1281          * @group.
1282          */
1283         int (*trap_group_set)(struct devlink *devlink,
1284                               const struct devlink_trap_group *group,
1285                               const struct devlink_trap_policer *policer,
1286                               struct netlink_ext_ack *extack);
1287         /**
1288          * @trap_group_action_set: Trap group action set function.
1289          *
1290          * If this callback is populated, it will take precedence over looping
1291          * over all traps in a group and calling .trap_action_set().
1292          */
1293         int (*trap_group_action_set)(struct devlink *devlink,
1294                                      const struct devlink_trap_group *group,
1295                                      enum devlink_trap_action action,
1296                                      struct netlink_ext_ack *extack);
1297         /**
1298          * @trap_policer_init: Trap policer initialization function.
1299          *
1300          * Should be used by device drivers to initialize the trap policer in
1301          * the underlying device.
1302          */
1303         int (*trap_policer_init)(struct devlink *devlink,
1304                                  const struct devlink_trap_policer *policer);
1305         /**
1306          * @trap_policer_fini: Trap policer de-initialization function.
1307          *
1308          * Should be used by device drivers to de-initialize the trap policer
1309          * in the underlying device.
1310          */
1311         void (*trap_policer_fini)(struct devlink *devlink,
1312                                   const struct devlink_trap_policer *policer);
1313         /**
1314          * @trap_policer_set: Trap policer parameters set function.
1315          */
1316         int (*trap_policer_set)(struct devlink *devlink,
1317                                 const struct devlink_trap_policer *policer,
1318                                 u64 rate, u64 burst,
1319                                 struct netlink_ext_ack *extack);
1320         /**
1321          * @trap_policer_counter_get: Trap policer counter get function.
1322          *
1323          * Should be used by device drivers to report number of packets dropped
1324          * by the policer.
1325          */
1326         int (*trap_policer_counter_get)(struct devlink *devlink,
1327                                         const struct devlink_trap_policer *policer,
1328                                         u64 *p_drops);
1329         /**
1330          * @port_function_hw_addr_get: Port function's hardware address get function.
1331          *
1332          * Should be used by device drivers to report the hardware address of a function managed
1333          * by the devlink port. Driver should return -EOPNOTSUPP if it doesn't support port
1334          * function handling for a particular port.
1335          *
1336          * Note: @extack can be NULL when port notifier queries the port function.
1337          */
1338         int (*port_function_hw_addr_get)(struct devlink *devlink, struct devlink_port *port,
1339                                          u8 *hw_addr, int *hw_addr_len,
1340                                          struct netlink_ext_ack *extack);
1341         /**
1342          * @port_function_hw_addr_set: Port function's hardware address set function.
1343          *
1344          * Should be used by device drivers to set the hardware address of a function managed
1345          * by the devlink port. Driver should return -EOPNOTSUPP if it doesn't support port
1346          * function handling for a particular port.
1347          */
1348         int (*port_function_hw_addr_set)(struct devlink *devlink, struct devlink_port *port,
1349                                          const u8 *hw_addr, int hw_addr_len,
1350                                          struct netlink_ext_ack *extack);
1351 };
1352
1353 static inline void *devlink_priv(struct devlink *devlink)
1354 {
1355         BUG_ON(!devlink);
1356         return &devlink->priv;
1357 }
1358
1359 static inline struct devlink *priv_to_devlink(void *priv)
1360 {
1361         BUG_ON(!priv);
1362         return container_of(priv, struct devlink, priv);
1363 }
1364
1365 static inline struct devlink_port *
1366 netdev_to_devlink_port(struct net_device *dev)
1367 {
1368         if (dev->netdev_ops->ndo_get_devlink_port)
1369                 return dev->netdev_ops->ndo_get_devlink_port(dev);
1370         return NULL;
1371 }
1372
1373 static inline struct devlink *netdev_to_devlink(struct net_device *dev)
1374 {
1375         struct devlink_port *devlink_port = netdev_to_devlink_port(dev);
1376
1377         if (devlink_port)
1378                 return devlink_port->devlink;
1379         return NULL;
1380 }
1381
1382 struct ib_device;
1383
1384 struct net *devlink_net(const struct devlink *devlink);
1385 void devlink_net_set(struct devlink *devlink, struct net *net);
1386 struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size);
1387 int devlink_register(struct devlink *devlink, struct device *dev);
1388 void devlink_unregister(struct devlink *devlink);
1389 void devlink_reload_enable(struct devlink *devlink);
1390 void devlink_reload_disable(struct devlink *devlink);
1391 void devlink_free(struct devlink *devlink);
1392 int devlink_port_register(struct devlink *devlink,
1393                           struct devlink_port *devlink_port,
1394                           unsigned int port_index);
1395 void devlink_port_unregister(struct devlink_port *devlink_port);
1396 void devlink_port_type_eth_set(struct devlink_port *devlink_port,
1397                                struct net_device *netdev);
1398 void devlink_port_type_ib_set(struct devlink_port *devlink_port,
1399                               struct ib_device *ibdev);
1400 void devlink_port_type_clear(struct devlink_port *devlink_port);
1401 void devlink_port_attrs_set(struct devlink_port *devlink_port,
1402                             struct devlink_port_attrs *devlink_port_attrs);
1403 void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 controller,
1404                                    u16 pf, bool external);
1405 void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 controller,
1406                                    u16 pf, u16 vf, bool external);
1407 int devlink_sb_register(struct devlink *devlink, unsigned int sb_index,
1408                         u32 size, u16 ingress_pools_count,
1409                         u16 egress_pools_count, u16 ingress_tc_count,
1410                         u16 egress_tc_count);
1411 void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index);
1412 int devlink_dpipe_table_register(struct devlink *devlink,
1413                                  const char *table_name,
1414                                  struct devlink_dpipe_table_ops *table_ops,
1415                                  void *priv, bool counter_control_extern);
1416 void devlink_dpipe_table_unregister(struct devlink *devlink,
1417                                     const char *table_name);
1418 int devlink_dpipe_headers_register(struct devlink *devlink,
1419                                    struct devlink_dpipe_headers *dpipe_headers);
1420 void devlink_dpipe_headers_unregister(struct devlink *devlink);
1421 bool devlink_dpipe_table_counter_enabled(struct devlink *devlink,
1422                                          const char *table_name);
1423 int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx);
1424 int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx,
1425                                    struct devlink_dpipe_entry *entry);
1426 int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx);
1427 void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry);
1428 int devlink_dpipe_action_put(struct sk_buff *skb,
1429                              struct devlink_dpipe_action *action);
1430 int devlink_dpipe_match_put(struct sk_buff *skb,
1431                             struct devlink_dpipe_match *match);
1432 extern struct devlink_dpipe_header devlink_dpipe_header_ethernet;
1433 extern struct devlink_dpipe_header devlink_dpipe_header_ipv4;
1434 extern struct devlink_dpipe_header devlink_dpipe_header_ipv6;
1435
1436 int devlink_resource_register(struct devlink *devlink,
1437                               const char *resource_name,
1438                               u64 resource_size,
1439                               u64 resource_id,
1440                               u64 parent_resource_id,
1441                               const struct devlink_resource_size_params *size_params);
1442 void devlink_resources_unregister(struct devlink *devlink,
1443                                   struct devlink_resource *resource);
1444 int devlink_resource_size_get(struct devlink *devlink,
1445                               u64 resource_id,
1446                               u64 *p_resource_size);
1447 int devlink_dpipe_table_resource_set(struct devlink *devlink,
1448                                      const char *table_name, u64 resource_id,
1449                                      u64 resource_units);
1450 void devlink_resource_occ_get_register(struct devlink *devlink,
1451                                        u64 resource_id,
1452                                        devlink_resource_occ_get_t *occ_get,
1453                                        void *occ_get_priv);
1454 void devlink_resource_occ_get_unregister(struct devlink *devlink,
1455                                          u64 resource_id);
1456 int devlink_params_register(struct devlink *devlink,
1457                             const struct devlink_param *params,
1458                             size_t params_count);
1459 void devlink_params_unregister(struct devlink *devlink,
1460                                const struct devlink_param *params,
1461                                size_t params_count);
1462 void devlink_params_publish(struct devlink *devlink);
1463 void devlink_params_unpublish(struct devlink *devlink);
1464 int devlink_port_params_register(struct devlink_port *devlink_port,
1465                                  const struct devlink_param *params,
1466                                  size_t params_count);
1467 void devlink_port_params_unregister(struct devlink_port *devlink_port,
1468                                     const struct devlink_param *params,
1469                                     size_t params_count);
1470 int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
1471                                        union devlink_param_value *init_val);
1472 int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
1473                                        union devlink_param_value init_val);
1474 int
1475 devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port,
1476                                         u32 param_id,
1477                                         union devlink_param_value *init_val);
1478 int devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port,
1479                                             u32 param_id,
1480                                             union devlink_param_value init_val);
1481 void devlink_param_value_changed(struct devlink *devlink, u32 param_id);
1482 void devlink_port_param_value_changed(struct devlink_port *devlink_port,
1483                                       u32 param_id);
1484 void devlink_param_value_str_fill(union devlink_param_value *dst_val,
1485                                   const char *src);
1486 struct devlink_region *
1487 devlink_region_create(struct devlink *devlink,
1488                       const struct devlink_region_ops *ops,
1489                       u32 region_max_snapshots, u64 region_size);
1490 struct devlink_region *
1491 devlink_port_region_create(struct devlink_port *port,
1492                            const struct devlink_port_region_ops *ops,
1493                            u32 region_max_snapshots, u64 region_size);
1494 void devlink_region_destroy(struct devlink_region *region);
1495 void devlink_port_region_destroy(struct devlink_region *region);
1496
1497 int devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id);
1498 void devlink_region_snapshot_id_put(struct devlink *devlink, u32 id);
1499 int devlink_region_snapshot_create(struct devlink_region *region,
1500                                    u8 *data, u32 snapshot_id);
1501 int devlink_info_serial_number_put(struct devlink_info_req *req,
1502                                    const char *sn);
1503 int devlink_info_driver_name_put(struct devlink_info_req *req,
1504                                  const char *name);
1505 int devlink_info_board_serial_number_put(struct devlink_info_req *req,
1506                                          const char *bsn);
1507 int devlink_info_version_fixed_put(struct devlink_info_req *req,
1508                                    const char *version_name,
1509                                    const char *version_value);
1510 int devlink_info_version_stored_put(struct devlink_info_req *req,
1511                                     const char *version_name,
1512                                     const char *version_value);
1513 int devlink_info_version_running_put(struct devlink_info_req *req,
1514                                      const char *version_name,
1515                                      const char *version_value);
1516
1517 int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg);
1518 int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg);
1519
1520 int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name);
1521 int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg);
1522
1523 int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg,
1524                                      const char *name);
1525 int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg);
1526 int devlink_fmsg_binary_pair_nest_start(struct devlink_fmsg *fmsg,
1527                                         const char *name);
1528 int devlink_fmsg_binary_pair_nest_end(struct devlink_fmsg *fmsg);
1529
1530 int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value);
1531 int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value);
1532 int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value);
1533 int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value);
1534 int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value);
1535 int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value,
1536                             u16 value_len);
1537
1538 int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name,
1539                                bool value);
1540 int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name,
1541                              u8 value);
1542 int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name,
1543                               u32 value);
1544 int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name,
1545                               u64 value);
1546 int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name,
1547                                  const char *value);
1548 int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name,
1549                                  const void *value, u32 value_len);
1550
1551 struct devlink_health_reporter *
1552 devlink_health_reporter_create(struct devlink *devlink,
1553                                const struct devlink_health_reporter_ops *ops,
1554                                u64 graceful_period, void *priv);
1555
1556 struct devlink_health_reporter *
1557 devlink_port_health_reporter_create(struct devlink_port *port,
1558                                     const struct devlink_health_reporter_ops *ops,
1559                                     u64 graceful_period, void *priv);
1560
1561 void
1562 devlink_health_reporter_destroy(struct devlink_health_reporter *reporter);
1563
1564 void
1565 devlink_port_health_reporter_destroy(struct devlink_health_reporter *reporter);
1566
1567 void *
1568 devlink_health_reporter_priv(struct devlink_health_reporter *reporter);
1569 int devlink_health_report(struct devlink_health_reporter *reporter,
1570                           const char *msg, void *priv_ctx);
1571 void
1572 devlink_health_reporter_state_update(struct devlink_health_reporter *reporter,
1573                                      enum devlink_health_reporter_state state);
1574 void
1575 devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter);
1576
1577 bool devlink_is_reload_failed(const struct devlink *devlink);
1578 void devlink_remote_reload_actions_performed(struct devlink *devlink,
1579                                              enum devlink_reload_limit limit,
1580                                              u32 actions_performed);
1581
1582 void devlink_flash_update_status_notify(struct devlink *devlink,
1583                                         const char *status_msg,
1584                                         const char *component,
1585                                         unsigned long done,
1586                                         unsigned long total);
1587 void devlink_flash_update_timeout_notify(struct devlink *devlink,
1588                                          const char *status_msg,
1589                                          const char *component,
1590                                          unsigned long timeout);
1591
1592 int devlink_traps_register(struct devlink *devlink,
1593                            const struct devlink_trap *traps,
1594                            size_t traps_count, void *priv);
1595 void devlink_traps_unregister(struct devlink *devlink,
1596                               const struct devlink_trap *traps,
1597                               size_t traps_count);
1598 void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb,
1599                          void *trap_ctx, struct devlink_port *in_devlink_port,
1600                          const struct flow_action_cookie *fa_cookie);
1601 void *devlink_trap_ctx_priv(void *trap_ctx);
1602 int devlink_trap_groups_register(struct devlink *devlink,
1603                                  const struct devlink_trap_group *groups,
1604                                  size_t groups_count);
1605 void devlink_trap_groups_unregister(struct devlink *devlink,
1606                                     const struct devlink_trap_group *groups,
1607                                     size_t groups_count);
1608 int
1609 devlink_trap_policers_register(struct devlink *devlink,
1610                                const struct devlink_trap_policer *policers,
1611                                size_t policers_count);
1612 void
1613 devlink_trap_policers_unregister(struct devlink *devlink,
1614                                  const struct devlink_trap_policer *policers,
1615                                  size_t policers_count);
1616
1617 #if IS_ENABLED(CONFIG_NET_DEVLINK)
1618
1619 void devlink_compat_running_version(struct net_device *dev,
1620                                     char *buf, size_t len);
1621 int devlink_compat_flash_update(struct net_device *dev, const char *file_name);
1622 int devlink_compat_phys_port_name_get(struct net_device *dev,
1623                                       char *name, size_t len);
1624 int devlink_compat_switch_id_get(struct net_device *dev,
1625                                  struct netdev_phys_item_id *ppid);
1626
1627 #else
1628
1629 static inline void
1630 devlink_compat_running_version(struct net_device *dev, char *buf, size_t len)
1631 {
1632 }
1633
1634 static inline int
1635 devlink_compat_flash_update(struct net_device *dev, const char *file_name)
1636 {
1637         return -EOPNOTSUPP;
1638 }
1639
1640 static inline int
1641 devlink_compat_phys_port_name_get(struct net_device *dev,
1642                                   char *name, size_t len)
1643 {
1644         return -EOPNOTSUPP;
1645 }
1646
1647 static inline int
1648 devlink_compat_switch_id_get(struct net_device *dev,
1649                              struct netdev_phys_item_id *ppid)
1650 {
1651         return -EOPNOTSUPP;
1652 }
1653
1654 #endif
1655
1656 #endif /* _NET_DEVLINK_H_ */