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 rate_list;
  38         struct list_head sb_list;
  39         struct list_head dpipe_table_list;
  40         struct list_head resource_list;
  41         struct list_head param_list;
  42         struct list_head region_list;
  43         struct list_head reporter_list;
  44         struct mutex reporters_lock; /* protects reporter_list */
  45         struct devlink_dpipe_headers *dpipe_headers;
  46         struct list_head trap_list;
  47         struct list_head trap_group_list;
  48         struct list_head trap_policer_list;
  49         const struct devlink_ops *ops;
  50         struct xarray snapshot_ids;
  51         struct devlink_dev_stats stats;
  52         struct device *dev;
  53         possible_net_t _net;
  54         struct mutex lock; /* Serializes access to devlink instance specific objects such as
  55                             * port, sb, dpipe, resource, params, region, traps and more.
  56                             */
  57         u8 reload_failed:1,
  58            reload_enabled:1,
  59            registered:1;
  60         char priv[0] __aligned(NETDEV_ALIGN);
  61 };
  62
  63 struct devlink_port_phys_attrs {
  64         u32 port_number; /* Same value as "split group".
  65                           * A physical port which is visible to the user
  66                           * for a given port flavour.
  67                           */
  68         u32 split_subport_number; /* If the port is split, this is the number of subport. */
  69 };
  70
  71 /**
  72  * struct devlink_port_pci_pf_attrs - devlink port's PCI PF attributes
  73  * @controller: Associated controller number
  74  * @pf: Associated PCI PF number for this port.
  75  * @external: when set, indicates if a port is for an external controller
  76  */
  77 struct devlink_port_pci_pf_attrs {
  78         u32 controller;
  79         u16 pf;
  80         u8 external:1;
  81 };
  82
  83 /**
  84  * struct devlink_port_pci_vf_attrs - devlink port's PCI VF attributes
  85  * @controller: Associated controller number
  86  * @pf: Associated PCI PF number for this port.
  87  * @vf: Associated PCI VF for of the PCI PF for this port.
  88  * @external: when set, indicates if a port is for an external controller
  89  */
  90 struct devlink_port_pci_vf_attrs {
  91         u32 controller;
  92         u16 pf;
  93         u16 vf;
  94         u8 external:1;
  95 };
  96
  97 /**
  98  * struct devlink_port_pci_sf_attrs - devlink port's PCI SF attributes
  99  * @controller: Associated controller number
 100  * @sf: Associated PCI SF for of the PCI PF for this port.
 101  * @pf: Associated PCI PF number for this port.
 102  * @external: when set, indicates if a port is for an external controller
 103  */
 104 struct devlink_port_pci_sf_attrs {
 105         u32 controller;
 106         u32 sf;
 107         u16 pf;
 108         u8 external:1;
 109 };
 110
 111 /**
 112  * struct devlink_port_attrs - devlink port object
 113  * @flavour: flavour of the port
 114  * @split: indicates if this is split port
 115  * @splittable: indicates if the port can be split.
 116  * @lanes: maximum number of lanes the port supports. 0 value is not passed to netlink.
 117  * @switch_id: if the port is part of switch, this is buffer with ID, otherwise this is NULL
 118  * @phys: physical port attributes
 119  * @pci_pf: PCI PF port attributes
 120  * @pci_vf: PCI VF port attributes
 121  * @pci_sf: PCI SF port attributes
 122  */
 123 struct devlink_port_attrs {
 124         u8 split:1,
 125            splittable:1;
 126         u32 lanes;
 127         enum devlink_port_flavour flavour;
 128         struct netdev_phys_item_id switch_id;
 129         union {
 130                 struct devlink_port_phys_attrs phys;
 131                 struct devlink_port_pci_pf_attrs pci_pf;
 132                 struct devlink_port_pci_vf_attrs pci_vf;
 133                 struct devlink_port_pci_sf_attrs pci_sf;
 134         };
 135 };
 136
 137 struct devlink_rate {
 138         struct list_head list;
 139         enum devlink_rate_type type;
 140         struct devlink *devlink;
 141         void *priv;
 142         u64 tx_share;
 143         u64 tx_max;
 144
 145         struct devlink_rate *parent;
 146         union {
 147                 struct devlink_port *devlink_port;
 148                 struct {
 149                         char *name;
 150                         refcount_t refcnt;
 151                 };
 152         };
 153 };
 154
 155 struct devlink_port {
 156         struct list_head list;
 157         struct list_head param_list;
 158         struct list_head region_list;
 159         struct devlink *devlink;
 160         unsigned int index;
 161         bool registered;
 162         spinlock_t type_lock; /* Protects type and type_dev
 163                                * pointer consistency.
 164                                */
 165         enum devlink_port_type type;
 166         enum devlink_port_type desired_type;
 167         void *type_dev;
 168         struct devlink_port_attrs attrs;
 169         u8 attrs_set:1,
 170            switch_port:1;
 171         struct delayed_work type_warn_dw;
 172         struct list_head reporter_list;
 173         struct mutex reporters_lock; /* Protects reporter_list */
 174
 175         struct devlink_rate *devlink_rate;
 176 };
 177
 178 struct devlink_port_new_attrs {
 179         enum devlink_port_flavour flavour;
 180         unsigned int port_index;
 181         u32 controller;
 182         u32 sfnum;
 183         u16 pfnum;
 184         u8 port_index_valid:1,
 185            controller_valid:1,
 186            sfnum_valid:1;
 187 };
 188
 189 struct devlink_sb_pool_info {
 190         enum devlink_sb_pool_type pool_type;
 191         u32 size;
 192         enum devlink_sb_threshold_type threshold_type;
 193         u32 cell_size;
 194 };
 195
 196 /**
 197  * struct devlink_dpipe_field - dpipe field object
 198  * @name: field name
 199  * @id: index inside the headers field array
 200  * @bitwidth: bitwidth
 201  * @mapping_type: mapping type
 202  */
 203 struct devlink_dpipe_field {
 204         const char *name;
 205         unsigned int id;
 206         unsigned int bitwidth;
 207         enum devlink_dpipe_field_mapping_type mapping_type;
 208 };
 209
 210 /**
 211  * struct devlink_dpipe_header - dpipe header object
 212  * @name: header name
 213  * @id: index, global/local detrmined by global bit
 214  * @fields: fields
 215  * @fields_count: number of fields
 216  * @global: indicates if header is shared like most protocol header
 217  *          or driver specific
 218  */
 219 struct devlink_dpipe_header {
 220         const char *name;
 221         unsigned int id;
 222         struct devlink_dpipe_field *fields;
 223         unsigned int fields_count;
 224         bool global;
 225 };
 226
 227 /**
 228  * struct devlink_dpipe_match - represents match operation
 229  * @type: type of match
 230  * @header_index: header index (packets can have several headers of same
 231  *                type like in case of tunnels)
 232  * @header: header
 233  * @fieled_id: field index
 234  */
 235 struct devlink_dpipe_match {
 236         enum devlink_dpipe_match_type type;
 237         unsigned int header_index;
 238         struct devlink_dpipe_header *header;
 239         unsigned int field_id;
 240 };
 241
 242 /**
 243  * struct devlink_dpipe_action - represents action operation
 244  * @type: type of action
 245  * @header_index: header index (packets can have several headers of same
 246  *                type like in case of tunnels)
 247  * @header: header
 248  * @fieled_id: field index
 249  */
 250 struct devlink_dpipe_action {
 251         enum devlink_dpipe_action_type type;
 252         unsigned int header_index;
 253         struct devlink_dpipe_header *header;
 254         unsigned int field_id;
 255 };
 256
 257 /**
 258  * struct devlink_dpipe_value - represents value of match/action
 259  * @action: action
 260  * @match: match
 261  * @mapping_value: in case the field has some mapping this value
 262  *                 specified the mapping value
 263  * @mapping_valid: specify if mapping value is valid
 264  * @value_size: value size
 265  * @value: value
 266  * @mask: bit mask
 267  */
 268 struct devlink_dpipe_value {
 269         union {
 270                 struct devlink_dpipe_action *action;
 271                 struct devlink_dpipe_match *match;
 272         };
 273         unsigned int mapping_value;
 274         bool mapping_valid;
 275         unsigned int value_size;
 276         void *value;
 277         void *mask;
 278 };
 279
 280 /**
 281  * struct devlink_dpipe_entry - table entry object
 282  * @index: index of the entry in the table
 283  * @match_values: match values
 284  * @matche_values_count: count of matches tuples
 285  * @action_values: actions values
 286  * @action_values_count: count of actions values
 287  * @counter: value of counter
 288  * @counter_valid: Specify if value is valid from hardware
 289  */
 290 struct devlink_dpipe_entry {
 291         u64 index;
 292         struct devlink_dpipe_value *match_values;
 293         unsigned int match_values_count;
 294         struct devlink_dpipe_value *action_values;
 295         unsigned int action_values_count;
 296         u64 counter;
 297         bool counter_valid;
 298 };
 299
 300 /**
 301  * struct devlink_dpipe_dump_ctx - context provided to driver in order
 302  *                                 to dump
 303  * @info: info
 304  * @cmd: devlink command
 305  * @skb: skb
 306  * @nest: top attribute
 307  * @hdr: hdr
 308  */
 309 struct devlink_dpipe_dump_ctx {
 310         struct genl_info *info;
 311         enum devlink_command cmd;
 312         struct sk_buff *skb;
 313         struct nlattr *nest;
 314         void *hdr;
 315 };
 316
 317 struct devlink_dpipe_table_ops;
 318
 319 /**
 320  * struct devlink_dpipe_table - table object
 321  * @priv: private
 322  * @name: table name
 323  * @counters_enabled: indicates if counters are active
 324  * @counter_control_extern: indicates if counter control is in dpipe or
 325  *                          external tool
 326  * @resource_valid: Indicate that the resource id is valid
 327  * @resource_id: relative resource this table is related to
 328  * @resource_units: number of resource's unit consumed per table's entry
 329  * @table_ops: table operations
 330  * @rcu: rcu
 331  */
 332 struct devlink_dpipe_table {
 333         void *priv;
 334         struct list_head list;
 335         const char *name;
 336         bool counters_enabled;
 337         bool counter_control_extern;
 338         bool resource_valid;
 339         u64 resource_id;
 340         u64 resource_units;
 341         struct devlink_dpipe_table_ops *table_ops;
 342         struct rcu_head rcu;
 343 };
 344
 345 /**
 346  * struct devlink_dpipe_table_ops - dpipe_table ops
 347  * @actions_dump - dumps all tables actions
 348  * @matches_dump - dumps all tables matches
 349  * @entries_dump - dumps all active entries in the table
 350  * @counters_set_update - when changing the counter status hardware sync
 351  *                        maybe needed to allocate/free counter related
 352  *                        resources
 353  * @size_get - get size
 354  */
 355 struct devlink_dpipe_table_ops {
 356         int (*actions_dump)(void *priv, struct sk_buff *skb);
 357         int (*matches_dump)(void *priv, struct sk_buff *skb);
 358         int (*entries_dump)(void *priv, bool counters_enabled,
 359                             struct devlink_dpipe_dump_ctx *dump_ctx);
 360         int (*counters_set_update)(void *priv, bool enable);
 361         u64 (*size_get)(void *priv);
 362 };
 363
 364 /**
 365  * struct devlink_dpipe_headers - dpipe headers
 366  * @headers - header array can be shared (global bit) or driver specific
 367  * @headers_count - count of headers
 368  */
 369 struct devlink_dpipe_headers {
 370         struct devlink_dpipe_header **headers;
 371         unsigned int headers_count;
 372 };
 373
 374 /**
 375  * struct devlink_resource_size_params - resource's size parameters
 376  * @size_min: minimum size which can be set
 377  * @size_max: maximum size which can be set
 378  * @size_granularity: size granularity
 379  * @size_unit: resource's basic unit
 380  */
 381 struct devlink_resource_size_params {
 382         u64 size_min;
 383         u64 size_max;
 384         u64 size_granularity;
 385         enum devlink_resource_unit unit;
 386 };
 387
 388 static inline void
 389 devlink_resource_size_params_init(struct devlink_resource_size_params *size_params,
 390                                   u64 size_min, u64 size_max,
 391                                   u64 size_granularity,
 392                                   enum devlink_resource_unit unit)
 393 {
 394         size_params->size_min = size_min;
 395         size_params->size_max = size_max;
 396         size_params->size_granularity = size_granularity;
 397         size_params->unit = unit;
 398 }
 399
 400 typedef u64 devlink_resource_occ_get_t(void *priv);
 401
 402 /**
 403  * struct devlink_resource - devlink resource
 404  * @name: name of the resource
 405  * @id: id, per devlink instance
 406  * @size: size of the resource
 407  * @size_new: updated size of the resource, reload is needed
 408  * @size_valid: valid in case the total size of the resource is valid
 409  *              including its children
 410  * @parent: parent resource
 411  * @size_params: size parameters
 412  * @list: parent list
 413  * @resource_list: list of child resources
 414  */
 415 struct devlink_resource {
 416         const char *name;
 417         u64 id;
 418         u64 size;
 419         u64 size_new;
 420         bool size_valid;
 421         struct devlink_resource *parent;
 422         struct devlink_resource_size_params size_params;
 423         struct list_head list;
 424         struct list_head resource_list;
 425         devlink_resource_occ_get_t *occ_get;
 426         void *occ_get_priv;
 427 };
 428
 429 #define DEVLINK_RESOURCE_ID_PARENT_TOP 0
 430
 431 #define DEVLINK_RESOURCE_GENERIC_NAME_PORTS "physical_ports"
 432
 433 #define __DEVLINK_PARAM_MAX_STRING_VALUE 32
 434 enum devlink_param_type {
 435         DEVLINK_PARAM_TYPE_U8,
 436         DEVLINK_PARAM_TYPE_U16,
 437         DEVLINK_PARAM_TYPE_U32,
 438         DEVLINK_PARAM_TYPE_STRING,
 439         DEVLINK_PARAM_TYPE_BOOL,
 440 };
 441
 442 union devlink_param_value {
 443         u8 vu8;
 444         u16 vu16;
 445         u32 vu32;
 446         char vstr[__DEVLINK_PARAM_MAX_STRING_VALUE];
 447         bool vbool;
 448 };
 449
 450 struct devlink_param_gset_ctx {
 451         union devlink_param_value val;
 452         enum devlink_param_cmode cmode;
 453 };
 454
 455 /**
 456  * struct devlink_flash_notify - devlink dev flash notify data
 457  * @status_msg: current status string
 458  * @component: firmware component being updated
 459  * @done: amount of work completed of total amount
 460  * @total: amount of work expected to be done
 461  * @timeout: expected max timeout in seconds
 462  *
 463  * These are values to be given to userland to be displayed in order
 464  * to show current activity in a firmware update process.
 465  */
 466 struct devlink_flash_notify {
 467         const char *status_msg;
 468         const char *component;
 469         unsigned long done;
 470         unsigned long total;
 471         unsigned long timeout;
 472 };
 473
 474 /**
 475  * struct devlink_param - devlink configuration parameter data
 476  * @name: name of the parameter
 477  * @generic: indicates if the parameter is generic or driver specific
 478  * @type: parameter type
 479  * @supported_cmodes: bitmap of supported configuration modes
 480  * @get: get parameter value, used for runtime and permanent
 481  *       configuration modes
 482  * @set: set parameter value, used for runtime and permanent
 483  *       configuration modes
 484  * @validate: validate input value is applicable (within value range, etc.)
 485  *
 486  * This struct should be used by the driver to fill the data for
 487  * a parameter it registers.
 488  */
 489 struct devlink_param {
 490         u32 id;
 491         const char *name;
 492         bool generic;
 493         enum devlink_param_type type;
 494         unsigned long supported_cmodes;
 495         int (*get)(struct devlink *devlink, u32 id,
 496                    struct devlink_param_gset_ctx *ctx);
 497         int (*set)(struct devlink *devlink, u32 id,
 498                    struct devlink_param_gset_ctx *ctx);
 499         int (*validate)(struct devlink *devlink, u32 id,
 500                         union devlink_param_value val,
 501                         struct netlink_ext_ack *extack);
 502 };
 503
 504 struct devlink_param_item {
 505         struct list_head list;
 506         const struct devlink_param *param;
 507         union devlink_param_value driverinit_value;
 508         bool driverinit_value_valid;
 509         bool published;
 510 };
 511
 512 enum devlink_param_generic_id {
 513         DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
 514         DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
 515         DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV,
 516         DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,
 517         DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI,
 518         DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
 519         DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
 520         DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
 521         DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE,
 522         DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
 523         DEVLINK_PARAM_GENERIC_ID_ENABLE_REMOTE_DEV_RESET,
 524
 525         /* add new param generic ids above here*/
 526         __DEVLINK_PARAM_GENERIC_ID_MAX,
 527         DEVLINK_PARAM_GENERIC_ID_MAX = __DEVLINK_PARAM_GENERIC_ID_MAX - 1,
 528 };
 529
 530 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME "internal_error_reset"
 531 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL
 532
 533 #define DEVLINK_PARAM_GENERIC_MAX_MACS_NAME "max_macs"
 534 #define DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE DEVLINK_PARAM_TYPE_U32
 535
 536 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME "enable_sriov"
 537 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE DEVLINK_PARAM_TYPE_BOOL
 538
 539 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME "region_snapshot_enable"
 540 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE DEVLINK_PARAM_TYPE_BOOL
 541
 542 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME "ignore_ari"
 543 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE DEVLINK_PARAM_TYPE_BOOL
 544
 545 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME "msix_vec_per_pf_max"
 546 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE DEVLINK_PARAM_TYPE_U32
 547
 548 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME "msix_vec_per_pf_min"
 549 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE DEVLINK_PARAM_TYPE_U32
 550
 551 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME "fw_load_policy"
 552 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE DEVLINK_PARAM_TYPE_U8
 553
 554 #define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME \
 555         "reset_dev_on_drv_probe"
 556 #define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE DEVLINK_PARAM_TYPE_U8
 557
 558 #define DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME "enable_roce"
 559 #define DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE DEVLINK_PARAM_TYPE_BOOL
 560
 561 #define DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_NAME "enable_remote_dev_reset"
 562 #define DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL
 563
 564 #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate)      \
 565 {                                                                       \
 566         .id = DEVLINK_PARAM_GENERIC_ID_##_id,                           \
 567         .name = DEVLINK_PARAM_GENERIC_##_id##_NAME,                     \
 568         .type = DEVLINK_PARAM_GENERIC_##_id##_TYPE,                     \
 569         .generic = true,                                                \
 570         .supported_cmodes = _cmodes,                                    \
 571         .get = _get,                                                    \
 572         .set = _set,                                                    \
 573         .validate = _validate,                                          \
 574 }
 575
 576 #define DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, _get, _set, _validate) \
 577 {                                                                       \
 578         .id = _id,                                                      \
 579         .name = _name,                                                  \
 580         .type = _type,                                                  \
 581         .supported_cmodes = _cmodes,                                    \
 582         .get = _get,                                                    \
 583         .set = _set,                                                    \
 584         .validate = _validate,                                          \
 585 }
 586
 587 /* Part number, identifier of board design */
 588 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_ID   "board.id"
 589 /* Revision of board design */
 590 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_REV  "board.rev"
 591 /* Maker of the board */
 592 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE  "board.manufacture"
 593
 594 /* Part number, identifier of asic design */
 595 #define DEVLINK_INFO_VERSION_GENERIC_ASIC_ID    "asic.id"
 596 /* Revision of asic design */
 597 #define DEVLINK_INFO_VERSION_GENERIC_ASIC_REV   "asic.rev"
 598
 599 /* Overall FW version */
 600 #define DEVLINK_INFO_VERSION_GENERIC_FW         "fw"
 601 /* Control processor FW version */
 602 #define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT    "fw.mgmt"
 603 /* FW interface specification version */
 604 #define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API        "fw.mgmt.api"
 605 /* Data path microcode controlling high-speed packet processing */
 606 #define DEVLINK_INFO_VERSION_GENERIC_FW_APP     "fw.app"
 607 /* UNDI software version */
 608 #define DEVLINK_INFO_VERSION_GENERIC_FW_UNDI    "fw.undi"
 609 /* NCSI support/handler version */
 610 #define DEVLINK_INFO_VERSION_GENERIC_FW_NCSI    "fw.ncsi"
 611 /* FW parameter set id */
 612 #define DEVLINK_INFO_VERSION_GENERIC_FW_PSID    "fw.psid"
 613 /* RoCE FW version */
 614 #define DEVLINK_INFO_VERSION_GENERIC_FW_ROCE    "fw.roce"
 615 /* Firmware bundle identifier */
 616 #define DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID       "fw.bundle_id"
 617
 618 /**
 619  * struct devlink_flash_update_params - Flash Update parameters
 620  * @fw: pointer to the firmware data to update from
 621  * @component: the flash component to update
 622  *
 623  * With the exception of fw, drivers must opt-in to parameters by
 624  * setting the appropriate bit in the supported_flash_update_params field in
 625  * their devlink_ops structure.
 626  */
 627 struct devlink_flash_update_params {
 628         const struct firmware *fw;
 629         const char *component;
 630         u32 overwrite_mask;
 631 };
 632
 633 #define DEVLINK_SUPPORT_FLASH_UPDATE_COMPONENT          BIT(0)
 634 #define DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK     BIT(1)
 635
 636 struct devlink_region;
 637 struct devlink_info_req;
 638
 639 /**
 640  * struct devlink_region_ops - Region operations
 641  * @name: region name
 642  * @destructor: callback used to free snapshot memory when deleting
 643  * @snapshot: callback to request an immediate snapshot. On success,
 644  *            the data variable must be updated to point to the snapshot data.
 645  *            The function will be called while the devlink instance lock is
 646  *            held.
 647  * @priv: Pointer to driver private data for the region operation
 648  */
 649 struct devlink_region_ops {
 650         const char *name;
 651         void (*destructor)(const void *data);
 652         int (*snapshot)(struct devlink *devlink,
 653                         const struct devlink_region_ops *ops,
 654                         struct netlink_ext_ack *extack,
 655                         u8 **data);
 656         void *priv;
 657 };
 658
 659 /**
 660  * struct devlink_port_region_ops - Region operations for a port
 661  * @name: region name
 662  * @destructor: callback used to free snapshot memory when deleting
 663  * @snapshot: callback to request an immediate snapshot. On success,
 664  *            the data variable must be updated to point to the snapshot data.
 665  *            The function will be called while the devlink instance lock is
 666  *            held.
 667  * @priv: Pointer to driver private data for the region operation
 668  */
 669 struct devlink_port_region_ops {
 670         const char *name;
 671         void (*destructor)(const void *data);
 672         int (*snapshot)(struct devlink_port *port,
 673                         const struct devlink_port_region_ops *ops,
 674                         struct netlink_ext_ack *extack,
 675                         u8 **data);
 676         void *priv;
 677 };
 678
 679 struct devlink_fmsg;
 680 struct devlink_health_reporter;
 681
 682 enum devlink_health_reporter_state {
 683         DEVLINK_HEALTH_REPORTER_STATE_HEALTHY,
 684         DEVLINK_HEALTH_REPORTER_STATE_ERROR,
 685 };
 686
 687 /**
 688  * struct devlink_health_reporter_ops - Reporter operations
 689  * @name: reporter name
 690  * @recover: callback to recover from reported error
 691  *           if priv_ctx is NULL, run a full recover
 692  * @dump: callback to dump an object
 693  *        if priv_ctx is NULL, run a full dump
 694  * @diagnose: callback to diagnose the current status
 695  * @test: callback to trigger a test event
 696  */
 697
 698 struct devlink_health_reporter_ops {
 699         char *name;
 700         int (*recover)(struct devlink_health_reporter *reporter,
 701                        void *priv_ctx, struct netlink_ext_ack *extack);
 702         int (*dump)(struct devlink_health_reporter *reporter,
 703                     struct devlink_fmsg *fmsg, void *priv_ctx,
 704                     struct netlink_ext_ack *extack);
 705         int (*diagnose)(struct devlink_health_reporter *reporter,
 706                         struct devlink_fmsg *fmsg,
 707                         struct netlink_ext_ack *extack);
 708         int (*test)(struct devlink_health_reporter *reporter,
 709                     struct netlink_ext_ack *extack);
 710 };
 711
 712 /**
 713  * struct devlink_trap_metadata - Packet trap metadata.
 714  * @trap_name: Trap name.
 715  * @trap_group_name: Trap group name.
 716  * @input_dev: Input netdevice.
 717  * @fa_cookie: Flow action user cookie.
 718  * @trap_type: Trap type.
 719  */
 720 struct devlink_trap_metadata {
 721         const char *trap_name;
 722         const char *trap_group_name;
 723         struct net_device *input_dev;
 724         const struct flow_action_cookie *fa_cookie;
 725         enum devlink_trap_type trap_type;
 726 };
 727
 728 /**
 729  * struct devlink_trap_policer - Immutable packet trap policer attributes.
 730  * @id: Policer identifier.
 731  * @init_rate: Initial rate in packets / sec.
 732  * @init_burst: Initial burst size in packets.
 733  * @max_rate: Maximum rate.
 734  * @min_rate: Minimum rate.
 735  * @max_burst: Maximum burst size.
 736  * @min_burst: Minimum burst size.
 737  *
 738  * Describes immutable attributes of packet trap policers that drivers register
 739  * with devlink.
 740  */
 741 struct devlink_trap_policer {
 742         u32 id;
 743         u64 init_rate;
 744         u64 init_burst;
 745         u64 max_rate;
 746         u64 min_rate;
 747         u64 max_burst;
 748         u64 min_burst;
 749 };
 750
 751 /**
 752  * struct devlink_trap_group - Immutable packet trap group attributes.
 753  * @name: Trap group name.
 754  * @id: Trap group identifier.
 755  * @generic: Whether the trap group is generic or not.
 756  * @init_policer_id: Initial policer identifier.
 757  *
 758  * Describes immutable attributes of packet trap groups that drivers register
 759  * with devlink.
 760  */
 761 struct devlink_trap_group {
 762         const char *name;
 763         u16 id;
 764         bool generic;
 765         u32 init_policer_id;
 766 };
 767
 768 #define DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT    BIT(0)
 769 #define DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE  BIT(1)
 770
 771 /**
 772  * struct devlink_trap - Immutable packet trap attributes.
 773  * @type: Trap type.
 774  * @init_action: Initial trap action.
 775  * @generic: Whether the trap is generic or not.
 776  * @id: Trap identifier.
 777  * @name: Trap name.
 778  * @init_group_id: Initial group identifier.
 779  * @metadata_cap: Metadata types that can be provided by the trap.
 780  *
 781  * Describes immutable attributes of packet traps that drivers register with
 782  * devlink.
 783  */
 784 struct devlink_trap {
 785         enum devlink_trap_type type;
 786         enum devlink_trap_action init_action;
 787         bool generic;
 788         u16 id;
 789         const char *name;
 790         u16 init_group_id;
 791         u32 metadata_cap;
 792 };
 793
 794 /* All traps must be documented in
 795  * Documentation/networking/devlink/devlink-trap.rst
 796  */
 797 enum devlink_trap_generic_id {
 798         DEVLINK_TRAP_GENERIC_ID_SMAC_MC,
 799         DEVLINK_TRAP_GENERIC_ID_VLAN_TAG_MISMATCH,
 800         DEVLINK_TRAP_GENERIC_ID_INGRESS_VLAN_FILTER,
 801         DEVLINK_TRAP_GENERIC_ID_INGRESS_STP_FILTER,
 802         DEVLINK_TRAP_GENERIC_ID_EMPTY_TX_LIST,
 803         DEVLINK_TRAP_GENERIC_ID_PORT_LOOPBACK_FILTER,
 804         DEVLINK_TRAP_GENERIC_ID_BLACKHOLE_ROUTE,
 805         DEVLINK_TRAP_GENERIC_ID_TTL_ERROR,
 806         DEVLINK_TRAP_GENERIC_ID_TAIL_DROP,
 807         DEVLINK_TRAP_GENERIC_ID_NON_IP_PACKET,
 808         DEVLINK_TRAP_GENERIC_ID_UC_DIP_MC_DMAC,
 809         DEVLINK_TRAP_GENERIC_ID_DIP_LB,
 810         DEVLINK_TRAP_GENERIC_ID_SIP_MC,
 811         DEVLINK_TRAP_GENERIC_ID_SIP_LB,
 812         DEVLINK_TRAP_GENERIC_ID_CORRUPTED_IP_HDR,
 813         DEVLINK_TRAP_GENERIC_ID_IPV4_SIP_BC,
 814         DEVLINK_TRAP_GENERIC_ID_IPV6_MC_DIP_RESERVED_SCOPE,
 815         DEVLINK_TRAP_GENERIC_ID_IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE,
 816         DEVLINK_TRAP_GENERIC_ID_MTU_ERROR,
 817         DEVLINK_TRAP_GENERIC_ID_UNRESOLVED_NEIGH,
 818         DEVLINK_TRAP_GENERIC_ID_RPF,
 819         DEVLINK_TRAP_GENERIC_ID_REJECT_ROUTE,
 820         DEVLINK_TRAP_GENERIC_ID_IPV4_LPM_UNICAST_MISS,
 821         DEVLINK_TRAP_GENERIC_ID_IPV6_LPM_UNICAST_MISS,
 822         DEVLINK_TRAP_GENERIC_ID_NON_ROUTABLE,
 823         DEVLINK_TRAP_GENERIC_ID_DECAP_ERROR,
 824         DEVLINK_TRAP_GENERIC_ID_OVERLAY_SMAC_MC,
 825         DEVLINK_TRAP_GENERIC_ID_INGRESS_FLOW_ACTION_DROP,
 826         DEVLINK_TRAP_GENERIC_ID_EGRESS_FLOW_ACTION_DROP,
 827         DEVLINK_TRAP_GENERIC_ID_STP,
 828         DEVLINK_TRAP_GENERIC_ID_LACP,
 829         DEVLINK_TRAP_GENERIC_ID_LLDP,
 830         DEVLINK_TRAP_GENERIC_ID_IGMP_QUERY,
 831         DEVLINK_TRAP_GENERIC_ID_IGMP_V1_REPORT,
 832         DEVLINK_TRAP_GENERIC_ID_IGMP_V2_REPORT,
 833         DEVLINK_TRAP_GENERIC_ID_IGMP_V3_REPORT,
 834         DEVLINK_TRAP_GENERIC_ID_IGMP_V2_LEAVE,
 835         DEVLINK_TRAP_GENERIC_ID_MLD_QUERY,
 836         DEVLINK_TRAP_GENERIC_ID_MLD_V1_REPORT,
 837         DEVLINK_TRAP_GENERIC_ID_MLD_V2_REPORT,
 838         DEVLINK_TRAP_GENERIC_ID_MLD_V1_DONE,
 839         DEVLINK_TRAP_GENERIC_ID_IPV4_DHCP,
 840         DEVLINK_TRAP_GENERIC_ID_IPV6_DHCP,
 841         DEVLINK_TRAP_GENERIC_ID_ARP_REQUEST,
 842         DEVLINK_TRAP_GENERIC_ID_ARP_RESPONSE,
 843         DEVLINK_TRAP_GENERIC_ID_ARP_OVERLAY,
 844         DEVLINK_TRAP_GENERIC_ID_IPV6_NEIGH_SOLICIT,
 845         DEVLINK_TRAP_GENERIC_ID_IPV6_NEIGH_ADVERT,
 846         DEVLINK_TRAP_GENERIC_ID_IPV4_BFD,
 847         DEVLINK_TRAP_GENERIC_ID_IPV6_BFD,
 848         DEVLINK_TRAP_GENERIC_ID_IPV4_OSPF,
 849         DEVLINK_TRAP_GENERIC_ID_IPV6_OSPF,
 850         DEVLINK_TRAP_GENERIC_ID_IPV4_BGP,
 851         DEVLINK_TRAP_GENERIC_ID_IPV6_BGP,
 852         DEVLINK_TRAP_GENERIC_ID_IPV4_VRRP,
 853         DEVLINK_TRAP_GENERIC_ID_IPV6_VRRP,
 854         DEVLINK_TRAP_GENERIC_ID_IPV4_PIM,
 855         DEVLINK_TRAP_GENERIC_ID_IPV6_PIM,
 856         DEVLINK_TRAP_GENERIC_ID_UC_LB,
 857         DEVLINK_TRAP_GENERIC_ID_LOCAL_ROUTE,
 858         DEVLINK_TRAP_GENERIC_ID_EXTERNAL_ROUTE,
 859         DEVLINK_TRAP_GENERIC_ID_IPV6_UC_DIP_LINK_LOCAL_SCOPE,
 860         DEVLINK_TRAP_GENERIC_ID_IPV6_DIP_ALL_NODES,
 861         DEVLINK_TRAP_GENERIC_ID_IPV6_DIP_ALL_ROUTERS,
 862         DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_SOLICIT,
 863         DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_ADVERT,
 864         DEVLINK_TRAP_GENERIC_ID_IPV6_REDIRECT,
 865         DEVLINK_TRAP_GENERIC_ID_IPV4_ROUTER_ALERT,
 866         DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_ALERT,
 867         DEVLINK_TRAP_GENERIC_ID_PTP_EVENT,
 868         DEVLINK_TRAP_GENERIC_ID_PTP_GENERAL,
 869         DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_SAMPLE,
 870         DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_TRAP,
 871         DEVLINK_TRAP_GENERIC_ID_EARLY_DROP,
 872         DEVLINK_TRAP_GENERIC_ID_VXLAN_PARSING,
 873         DEVLINK_TRAP_GENERIC_ID_LLC_SNAP_PARSING,
 874         DEVLINK_TRAP_GENERIC_ID_VLAN_PARSING,
 875         DEVLINK_TRAP_GENERIC_ID_PPPOE_PPP_PARSING,
 876         DEVLINK_TRAP_GENERIC_ID_MPLS_PARSING,
 877         DEVLINK_TRAP_GENERIC_ID_ARP_PARSING,
 878         DEVLINK_TRAP_GENERIC_ID_IP_1_PARSING,
 879         DEVLINK_TRAP_GENERIC_ID_IP_N_PARSING,
 880         DEVLINK_TRAP_GENERIC_ID_GRE_PARSING,
 881         DEVLINK_TRAP_GENERIC_ID_UDP_PARSING,
 882         DEVLINK_TRAP_GENERIC_ID_TCP_PARSING,
 883         DEVLINK_TRAP_GENERIC_ID_IPSEC_PARSING,
 884         DEVLINK_TRAP_GENERIC_ID_SCTP_PARSING,
 885         DEVLINK_TRAP_GENERIC_ID_DCCP_PARSING,
 886         DEVLINK_TRAP_GENERIC_ID_GTP_PARSING,
 887         DEVLINK_TRAP_GENERIC_ID_ESP_PARSING,
 888         DEVLINK_TRAP_GENERIC_ID_BLACKHOLE_NEXTHOP,
 889         DEVLINK_TRAP_GENERIC_ID_DMAC_FILTER,
 890
 891         /* Add new generic trap IDs above */
 892         __DEVLINK_TRAP_GENERIC_ID_MAX,
 893         DEVLINK_TRAP_GENERIC_ID_MAX = __DEVLINK_TRAP_GENERIC_ID_MAX - 1,
 894 };
 895
 896 /* All trap groups must be documented in
 897  * Documentation/networking/devlink/devlink-trap.rst
 898  */
 899 enum devlink_trap_group_generic_id {
 900         DEVLINK_TRAP_GROUP_GENERIC_ID_L2_DROPS,
 901         DEVLINK_TRAP_GROUP_GENERIC_ID_L3_DROPS,
 902         DEVLINK_TRAP_GROUP_GENERIC_ID_L3_EXCEPTIONS,
 903         DEVLINK_TRAP_GROUP_GENERIC_ID_BUFFER_DROPS,
 904         DEVLINK_TRAP_GROUP_GENERIC_ID_TUNNEL_DROPS,
 905         DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_DROPS,
 906         DEVLINK_TRAP_GROUP_GENERIC_ID_STP,
 907         DEVLINK_TRAP_GROUP_GENERIC_ID_LACP,
 908         DEVLINK_TRAP_GROUP_GENERIC_ID_LLDP,
 909         DEVLINK_TRAP_GROUP_GENERIC_ID_MC_SNOOPING,
 910         DEVLINK_TRAP_GROUP_GENERIC_ID_DHCP,
 911         DEVLINK_TRAP_GROUP_GENERIC_ID_NEIGH_DISCOVERY,
 912         DEVLINK_TRAP_GROUP_GENERIC_ID_BFD,
 913         DEVLINK_TRAP_GROUP_GENERIC_ID_OSPF,
 914         DEVLINK_TRAP_GROUP_GENERIC_ID_BGP,
 915         DEVLINK_TRAP_GROUP_GENERIC_ID_VRRP,
 916         DEVLINK_TRAP_GROUP_GENERIC_ID_PIM,
 917         DEVLINK_TRAP_GROUP_GENERIC_ID_UC_LB,
 918         DEVLINK_TRAP_GROUP_GENERIC_ID_LOCAL_DELIVERY,
 919         DEVLINK_TRAP_GROUP_GENERIC_ID_EXTERNAL_DELIVERY,
 920         DEVLINK_TRAP_GROUP_GENERIC_ID_IPV6,
 921         DEVLINK_TRAP_GROUP_GENERIC_ID_PTP_EVENT,
 922         DEVLINK_TRAP_GROUP_GENERIC_ID_PTP_GENERAL,
 923         DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_SAMPLE,
 924         DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_TRAP,
 925         DEVLINK_TRAP_GROUP_GENERIC_ID_PARSER_ERROR_DROPS,
 926
 927         /* Add new generic trap group IDs above */
 928         __DEVLINK_TRAP_GROUP_GENERIC_ID_MAX,
 929         DEVLINK_TRAP_GROUP_GENERIC_ID_MAX =
 930                 __DEVLINK_TRAP_GROUP_GENERIC_ID_MAX - 1,
 931 };
 932
 933 #define DEVLINK_TRAP_GENERIC_NAME_SMAC_MC \
 934         "source_mac_is_multicast"
 935 #define DEVLINK_TRAP_GENERIC_NAME_VLAN_TAG_MISMATCH \
 936         "vlan_tag_mismatch"
 937 #define DEVLINK_TRAP_GENERIC_NAME_INGRESS_VLAN_FILTER \
 938         "ingress_vlan_filter"
 939 #define DEVLINK_TRAP_GENERIC_NAME_INGRESS_STP_FILTER \
 940         "ingress_spanning_tree_filter"
 941 #define DEVLINK_TRAP_GENERIC_NAME_EMPTY_TX_LIST \
 942         "port_list_is_empty"
 943 #define DEVLINK_TRAP_GENERIC_NAME_PORT_LOOPBACK_FILTER \
 944         "port_loopback_filter"
 945 #define DEVLINK_TRAP_GENERIC_NAME_BLACKHOLE_ROUTE \
 946         "blackhole_route"
 947 #define DEVLINK_TRAP_GENERIC_NAME_TTL_ERROR \
 948         "ttl_value_is_too_small"
 949 #define DEVLINK_TRAP_GENERIC_NAME_TAIL_DROP \
 950         "tail_drop"
 951 #define DEVLINK_TRAP_GENERIC_NAME_NON_IP_PACKET \
 952         "non_ip"
 953 #define DEVLINK_TRAP_GENERIC_NAME_UC_DIP_MC_DMAC \
 954         "uc_dip_over_mc_dmac"
 955 #define DEVLINK_TRAP_GENERIC_NAME_DIP_LB \
 956         "dip_is_loopback_address"
 957 #define DEVLINK_TRAP_GENERIC_NAME_SIP_MC \
 958         "sip_is_mc"
 959 #define DEVLINK_TRAP_GENERIC_NAME_SIP_LB \
 960         "sip_is_loopback_address"
 961 #define DEVLINK_TRAP_GENERIC_NAME_CORRUPTED_IP_HDR \
 962         "ip_header_corrupted"
 963 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_SIP_BC \
 964         "ipv4_sip_is_limited_bc"
 965 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_MC_DIP_RESERVED_SCOPE \
 966         "ipv6_mc_dip_reserved_scope"
 967 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE \
 968         "ipv6_mc_dip_interface_local_scope"
 969 #define DEVLINK_TRAP_GENERIC_NAME_MTU_ERROR \
 970         "mtu_value_is_too_small"
 971 #define DEVLINK_TRAP_GENERIC_NAME_UNRESOLVED_NEIGH \
 972         "unresolved_neigh"
 973 #define DEVLINK_TRAP_GENERIC_NAME_RPF \
 974         "mc_reverse_path_forwarding"
 975 #define DEVLINK_TRAP_GENERIC_NAME_REJECT_ROUTE \
 976         "reject_route"
 977 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_LPM_UNICAST_MISS \
 978         "ipv4_lpm_miss"
 979 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_LPM_UNICAST_MISS \
 980         "ipv6_lpm_miss"
 981 #define DEVLINK_TRAP_GENERIC_NAME_NON_ROUTABLE \
 982         "non_routable_packet"
 983 #define DEVLINK_TRAP_GENERIC_NAME_DECAP_ERROR \
 984         "decap_error"
 985 #define DEVLINK_TRAP_GENERIC_NAME_OVERLAY_SMAC_MC \
 986         "overlay_smac_is_mc"
 987 #define DEVLINK_TRAP_GENERIC_NAME_INGRESS_FLOW_ACTION_DROP \
 988         "ingress_flow_action_drop"
 989 #define DEVLINK_TRAP_GENERIC_NAME_EGRESS_FLOW_ACTION_DROP \
 990         "egress_flow_action_drop"
 991 #define DEVLINK_TRAP_GENERIC_NAME_STP \
 992         "stp"
 993 #define DEVLINK_TRAP_GENERIC_NAME_LACP \
 994         "lacp"
 995 #define DEVLINK_TRAP_GENERIC_NAME_LLDP \
 996         "lldp"
 997 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_QUERY \
 998         "igmp_query"
 999 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V1_REPORT \
1000         "igmp_v1_report"
1001 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V2_REPORT \
1002         "igmp_v2_report"
1003 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V3_REPORT \
1004         "igmp_v3_report"
1005 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V2_LEAVE \
1006         "igmp_v2_leave"
1007 #define DEVLINK_TRAP_GENERIC_NAME_MLD_QUERY \
1008         "mld_query"
1009 #define DEVLINK_TRAP_GENERIC_NAME_MLD_V1_REPORT \
1010         "mld_v1_report"
1011 #define DEVLINK_TRAP_GENERIC_NAME_MLD_V2_REPORT \
1012         "mld_v2_report"
1013 #define DEVLINK_TRAP_GENERIC_NAME_MLD_V1_DONE \
1014         "mld_v1_done"
1015 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_DHCP \
1016         "ipv4_dhcp"
1017 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_DHCP \
1018         "ipv6_dhcp"
1019 #define DEVLINK_TRAP_GENERIC_NAME_ARP_REQUEST \
1020         "arp_request"
1021 #define DEVLINK_TRAP_GENERIC_NAME_ARP_RESPONSE \
1022         "arp_response"
1023 #define DEVLINK_TRAP_GENERIC_NAME_ARP_OVERLAY \
1024         "arp_overlay"
1025 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_NEIGH_SOLICIT \
1026         "ipv6_neigh_solicit"
1027 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_NEIGH_ADVERT \
1028         "ipv6_neigh_advert"
1029 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_BFD \
1030         "ipv4_bfd"
1031 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_BFD \
1032         "ipv6_bfd"
1033 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_OSPF \
1034         "ipv4_ospf"
1035 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_OSPF \
1036         "ipv6_ospf"
1037 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_BGP \
1038         "ipv4_bgp"
1039 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_BGP \
1040         "ipv6_bgp"
1041 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_VRRP \
1042         "ipv4_vrrp"
1043 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_VRRP \
1044         "ipv6_vrrp"
1045 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_PIM \
1046         "ipv4_pim"
1047 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_PIM \
1048         "ipv6_pim"
1049 #define DEVLINK_TRAP_GENERIC_NAME_UC_LB \
1050         "uc_loopback"
1051 #define DEVLINK_TRAP_GENERIC_NAME_LOCAL_ROUTE \
1052         "local_route"
1053 #define DEVLINK_TRAP_GENERIC_NAME_EXTERNAL_ROUTE \
1054         "external_route"
1055 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_UC_DIP_LINK_LOCAL_SCOPE \
1056         "ipv6_uc_dip_link_local_scope"
1057 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_DIP_ALL_NODES \
1058         "ipv6_dip_all_nodes"
1059 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_DIP_ALL_ROUTERS \
1060         "ipv6_dip_all_routers"
1061 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_SOLICIT \
1062         "ipv6_router_solicit"
1063 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_ADVERT \
1064         "ipv6_router_advert"
1065 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_REDIRECT \
1066         "ipv6_redirect"
1067 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_ROUTER_ALERT \
1068         "ipv4_router_alert"
1069 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_ALERT \
1070         "ipv6_router_alert"
1071 #define DEVLINK_TRAP_GENERIC_NAME_PTP_EVENT \
1072         "ptp_event"
1073 #define DEVLINK_TRAP_GENERIC_NAME_PTP_GENERAL \
1074         "ptp_general"
1075 #define DEVLINK_TRAP_GENERIC_NAME_FLOW_ACTION_SAMPLE \
1076         "flow_action_sample"
1077 #define DEVLINK_TRAP_GENERIC_NAME_FLOW_ACTION_TRAP \
1078         "flow_action_trap"
1079 #define DEVLINK_TRAP_GENERIC_NAME_EARLY_DROP \
1080         "early_drop"
1081 #define DEVLINK_TRAP_GENERIC_NAME_VXLAN_PARSING \
1082         "vxlan_parsing"
1083 #define DEVLINK_TRAP_GENERIC_NAME_LLC_SNAP_PARSING \
1084         "llc_snap_parsing"
1085 #define DEVLINK_TRAP_GENERIC_NAME_VLAN_PARSING \
1086         "vlan_parsing"
1087 #define DEVLINK_TRAP_GENERIC_NAME_PPPOE_PPP_PARSING \
1088         "pppoe_ppp_parsing"
1089 #define DEVLINK_TRAP_GENERIC_NAME_MPLS_PARSING \
1090         "mpls_parsing"
1091 #define DEVLINK_TRAP_GENERIC_NAME_ARP_PARSING \
1092         "arp_parsing"
1093 #define DEVLINK_TRAP_GENERIC_NAME_IP_1_PARSING \
1094         "ip_1_parsing"
1095 #define DEVLINK_TRAP_GENERIC_NAME_IP_N_PARSING \
1096         "ip_n_parsing"
1097 #define DEVLINK_TRAP_GENERIC_NAME_GRE_PARSING \
1098         "gre_parsing"
1099 #define DEVLINK_TRAP_GENERIC_NAME_UDP_PARSING \
1100         "udp_parsing"
1101 #define DEVLINK_TRAP_GENERIC_NAME_TCP_PARSING \
1102         "tcp_parsing"
1103 #define DEVLINK_TRAP_GENERIC_NAME_IPSEC_PARSING \
1104         "ipsec_parsing"
1105 #define DEVLINK_TRAP_GENERIC_NAME_SCTP_PARSING \
1106         "sctp_parsing"
1107 #define DEVLINK_TRAP_GENERIC_NAME_DCCP_PARSING \
1108         "dccp_parsing"
1109 #define DEVLINK_TRAP_GENERIC_NAME_GTP_PARSING \
1110         "gtp_parsing"
1111 #define DEVLINK_TRAP_GENERIC_NAME_ESP_PARSING \
1112         "esp_parsing"
1113 #define DEVLINK_TRAP_GENERIC_NAME_BLACKHOLE_NEXTHOP \
1114         "blackhole_nexthop"
1115 #define DEVLINK_TRAP_GENERIC_NAME_DMAC_FILTER \
1116         "dmac_filter"
1117
1118 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \
1119         "l2_drops"
1120 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_DROPS \
1121         "l3_drops"
1122 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_EXCEPTIONS \
1123         "l3_exceptions"
1124 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_BUFFER_DROPS \
1125         "buffer_drops"
1126 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_TUNNEL_DROPS \
1127         "tunnel_drops"
1128 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_DROPS \
1129         "acl_drops"
1130 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_STP \
1131         "stp"
1132 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_LACP \
1133         "lacp"
1134 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_LLDP \
1135         "lldp"
1136 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_MC_SNOOPING  \
1137         "mc_snooping"
1138 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_DHCP \
1139         "dhcp"
1140 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_NEIGH_DISCOVERY \
1141         "neigh_discovery"
1142 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_BFD \
1143         "bfd"
1144 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_OSPF \
1145         "ospf"
1146 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_BGP \
1147         "bgp"
1148 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_VRRP \
1149         "vrrp"
1150 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PIM \
1151         "pim"
1152 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_UC_LB \
1153         "uc_loopback"
1154 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_LOCAL_DELIVERY \
1155         "local_delivery"
1156 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_EXTERNAL_DELIVERY \
1157         "external_delivery"
1158 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_IPV6 \
1159         "ipv6"
1160 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PTP_EVENT \
1161         "ptp_event"
1162 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PTP_GENERAL \
1163         "ptp_general"
1164 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_SAMPLE \
1165         "acl_sample"
1166 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_TRAP \
1167         "acl_trap"
1168 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PARSER_ERROR_DROPS \
1169         "parser_error_drops"
1170
1171 #define DEVLINK_TRAP_GENERIC(_type, _init_action, _id, _group_id,             \
1172                              _metadata_cap)                                   \
1173         {                                                                     \
1174                 .type = DEVLINK_TRAP_TYPE_##_type,                            \
1175                 .init_action = DEVLINK_TRAP_ACTION_##_init_action,            \
1176                 .generic = true,                                              \
1177                 .id = DEVLINK_TRAP_GENERIC_ID_##_id,                          \
1178                 .name = DEVLINK_TRAP_GENERIC_NAME_##_id,                      \
1179                 .init_group_id = _group_id,                                   \
1180                 .metadata_cap = _metadata_cap,                                \
1181         }
1182
1183 #define DEVLINK_TRAP_DRIVER(_type, _init_action, _id, _name, _group_id,       \
1184                             _metadata_cap)                                    \
1185         {                                                                     \
1186                 .type = DEVLINK_TRAP_TYPE_##_type,                            \
1187                 .init_action = DEVLINK_TRAP_ACTION_##_init_action,            \
1188                 .generic = false,                                             \
1189                 .id = _id,                                                    \
1190                 .name = _name,                                                \
1191                 .init_group_id = _group_id,                                   \
1192                 .metadata_cap = _metadata_cap,                                \
1193         }
1194
1195 #define DEVLINK_TRAP_GROUP_GENERIC(_id, _policer_id)                          \
1196         {                                                                     \
1197                 .name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id,                \
1198                 .id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id,                    \
1199                 .generic = true,                                              \
1200                 .init_policer_id = _policer_id,                               \
1201         }
1202
1203 #define DEVLINK_TRAP_POLICER(_id, _rate, _burst, _max_rate, _min_rate,        \
1204                              _max_burst, _min_burst)                          \
1205         {                                                                     \
1206                 .id = _id,                                                    \
1207                 .init_rate = _rate,                                           \
1208                 .init_burst = _burst,                                         \
1209                 .max_rate = _max_rate,                                        \
1210                 .min_rate = _min_rate,                                        \
1211                 .max_burst = _max_burst,                                      \
1212                 .min_burst = _min_burst,                                      \
1213         }
1214
1215 struct devlink_ops {
1216         /**
1217          * @supported_flash_update_params:
1218          * mask of parameters supported by the driver's .flash_update
1219          * implemementation.
1220          */
1221         u32 supported_flash_update_params;
1222         unsigned long reload_actions;
1223         unsigned long reload_limits;
1224         int (*reload_down)(struct devlink *devlink, bool netns_change,
1225                            enum devlink_reload_action action,
1226                            enum devlink_reload_limit limit,
1227                            struct netlink_ext_ack *extack);
1228         int (*reload_up)(struct devlink *devlink, enum devlink_reload_action action,
1229                          enum devlink_reload_limit limit, u32 *actions_performed,
1230                          struct netlink_ext_ack *extack);
1231         int (*port_type_set)(struct devlink_port *devlink_port,
1232                              enum devlink_port_type port_type);
1233         int (*port_split)(struct devlink *devlink, unsigned int port_index,
1234                           unsigned int count, struct netlink_ext_ack *extack);
1235         int (*port_unsplit)(struct devlink *devlink, unsigned int port_index,
1236                             struct netlink_ext_ack *extack);
1237         int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index,
1238                            u16 pool_index,
1239                            struct devlink_sb_pool_info *pool_info);
1240         int (*sb_pool_set)(struct devlink *devlink, unsigned int sb_index,
1241                            u16 pool_index, u32 size,
1242                            enum devlink_sb_threshold_type threshold_type,
1243                            struct netlink_ext_ack *extack);
1244         int (*sb_port_pool_get)(struct devlink_port *devlink_port,
1245                                 unsigned int sb_index, u16 pool_index,
1246                                 u32 *p_threshold);
1247         int (*sb_port_pool_set)(struct devlink_port *devlink_port,
1248                                 unsigned int sb_index, u16 pool_index,
1249                                 u32 threshold, struct netlink_ext_ack *extack);
1250         int (*sb_tc_pool_bind_get)(struct devlink_port *devlink_port,
1251                                    unsigned int sb_index,
1252                                    u16 tc_index,
1253                                    enum devlink_sb_pool_type pool_type,
1254                                    u16 *p_pool_index, u32 *p_threshold);
1255         int (*sb_tc_pool_bind_set)(struct devlink_port *devlink_port,
1256                                    unsigned int sb_index,
1257                                    u16 tc_index,
1258                                    enum devlink_sb_pool_type pool_type,
1259                                    u16 pool_index, u32 threshold,
1260                                    struct netlink_ext_ack *extack);
1261         int (*sb_occ_snapshot)(struct devlink *devlink,
1262                                unsigned int sb_index);
1263         int (*sb_occ_max_clear)(struct devlink *devlink,
1264                                 unsigned int sb_index);
1265         int (*sb_occ_port_pool_get)(struct devlink_port *devlink_port,
1266                                     unsigned int sb_index, u16 pool_index,
1267                                     u32 *p_cur, u32 *p_max);
1268         int (*sb_occ_tc_port_bind_get)(struct devlink_port *devlink_port,
1269                                        unsigned int sb_index,
1270                                        u16 tc_index,
1271                                        enum devlink_sb_pool_type pool_type,
1272                                        u32 *p_cur, u32 *p_max);
1273
1274         int (*eswitch_mode_get)(struct devlink *devlink, u16 *p_mode);
1275         int (*eswitch_mode_set)(struct devlink *devlink, u16 mode,
1276                                 struct netlink_ext_ack *extack);
1277         int (*eswitch_inline_mode_get)(struct devlink *devlink, u8 *p_inline_mode);
1278         int (*eswitch_inline_mode_set)(struct devlink *devlink, u8 inline_mode,
1279                                        struct netlink_ext_ack *extack);
1280         int (*eswitch_encap_mode_get)(struct devlink *devlink,
1281                                       enum devlink_eswitch_encap_mode *p_encap_mode);
1282         int (*eswitch_encap_mode_set)(struct devlink *devlink,
1283                                       enum devlink_eswitch_encap_mode encap_mode,
1284                                       struct netlink_ext_ack *extack);
1285         int (*info_get)(struct devlink *devlink, struct devlink_info_req *req,
1286                         struct netlink_ext_ack *extack);
1287         /**
1288          * @flash_update: Device flash update function
1289          *
1290          * Used to perform a flash update for the device. The set of
1291          * parameters supported by the driver should be set in
1292          * supported_flash_update_params.
1293          */
1294         int (*flash_update)(struct devlink *devlink,
1295                             struct devlink_flash_update_params *params,
1296                             struct netlink_ext_ack *extack);
1297         /**
1298          * @trap_init: Trap initialization function.
1299          *
1300          * Should be used by device drivers to initialize the trap in the
1301          * underlying device. Drivers should also store the provided trap
1302          * context, so that they could efficiently pass it to
1303          * devlink_trap_report() when the trap is triggered.
1304          */
1305         int (*trap_init)(struct devlink *devlink,
1306                          const struct devlink_trap *trap, void *trap_ctx);
1307         /**
1308          * @trap_fini: Trap de-initialization function.
1309          *
1310          * Should be used by device drivers to de-initialize the trap in the
1311          * underlying device.
1312          */
1313         void (*trap_fini)(struct devlink *devlink,
1314                           const struct devlink_trap *trap, void *trap_ctx);
1315         /**
1316          * @trap_action_set: Trap action set function.
1317          */
1318         int (*trap_action_set)(struct devlink *devlink,
1319                                const struct devlink_trap *trap,
1320                                enum devlink_trap_action action,
1321                                struct netlink_ext_ack *extack);
1322         /**
1323          * @trap_group_init: Trap group initialization function.
1324          *
1325          * Should be used by device drivers to initialize the trap group in the
1326          * underlying device.
1327          */
1328         int (*trap_group_init)(struct devlink *devlink,
1329                                const struct devlink_trap_group *group);
1330         /**
1331          * @trap_group_set: Trap group parameters set function.
1332          *
1333          * Note: @policer can be NULL when a policer is being unbound from
1334          * @group.
1335          */
1336         int (*trap_group_set)(struct devlink *devlink,
1337                               const struct devlink_trap_group *group,
1338                               const struct devlink_trap_policer *policer,
1339                               struct netlink_ext_ack *extack);
1340         /**
1341          * @trap_group_action_set: Trap group action set function.
1342          *
1343          * If this callback is populated, it will take precedence over looping
1344          * over all traps in a group and calling .trap_action_set().
1345          */
1346         int (*trap_group_action_set)(struct devlink *devlink,
1347                                      const struct devlink_trap_group *group,
1348                                      enum devlink_trap_action action,
1349                                      struct netlink_ext_ack *extack);
1350         /**
1351          * @trap_drop_counter_get: Trap drop counter get function.
1352          *
1353          * Should be used by device drivers to report number of packets
1354          * that have been dropped, and cannot be passed to the devlink
1355          * subsystem by the underlying device.
1356          */
1357         int (*trap_drop_counter_get)(struct devlink *devlink,
1358                                      const struct devlink_trap *trap,
1359                                      u64 *p_drops);
1360         /**
1361          * @trap_policer_init: Trap policer initialization function.
1362          *
1363          * Should be used by device drivers to initialize the trap policer in
1364          * the underlying device.
1365          */
1366         int (*trap_policer_init)(struct devlink *devlink,
1367                                  const struct devlink_trap_policer *policer);
1368         /**
1369          * @trap_policer_fini: Trap policer de-initialization function.
1370          *
1371          * Should be used by device drivers to de-initialize the trap policer
1372          * in the underlying device.
1373          */
1374         void (*trap_policer_fini)(struct devlink *devlink,
1375                                   const struct devlink_trap_policer *policer);
1376         /**
1377          * @trap_policer_set: Trap policer parameters set function.
1378          */
1379         int (*trap_policer_set)(struct devlink *devlink,
1380                                 const struct devlink_trap_policer *policer,
1381                                 u64 rate, u64 burst,
1382                                 struct netlink_ext_ack *extack);
1383         /**
1384          * @trap_policer_counter_get: Trap policer counter get function.
1385          *
1386          * Should be used by device drivers to report number of packets dropped
1387          * by the policer.
1388          */
1389         int (*trap_policer_counter_get)(struct devlink *devlink,
1390                                         const struct devlink_trap_policer *policer,
1391                                         u64 *p_drops);
1392         /**
1393          * @port_function_hw_addr_get: Port function's hardware address get function.
1394          *
1395          * Should be used by device drivers to report the hardware address of a function managed
1396          * by the devlink port. Driver should return -EOPNOTSUPP if it doesn't support port
1397          * function handling for a particular port.
1398          *
1399          * Note: @extack can be NULL when port notifier queries the port function.
1400          */
1401         int (*port_function_hw_addr_get)(struct devlink *devlink, struct devlink_port *port,
1402                                          u8 *hw_addr, int *hw_addr_len,
1403                                          struct netlink_ext_ack *extack);
1404         /**
1405          * @port_function_hw_addr_set: Port function's hardware address set function.
1406          *
1407          * Should be used by device drivers to set the hardware address of a function managed
1408          * by the devlink port. Driver should return -EOPNOTSUPP if it doesn't support port
1409          * function handling for a particular port.
1410          */
1411         int (*port_function_hw_addr_set)(struct devlink *devlink, struct devlink_port *port,
1412                                          const u8 *hw_addr, int hw_addr_len,
1413                                          struct netlink_ext_ack *extack);
1414         /**
1415          * port_new() - Add a new port function of a specified flavor
1416          * @devlink: Devlink instance
1417          * @attrs: attributes of the new port
1418          * @extack: extack for reporting error messages
1419          * @new_port_index: index of the new port
1420          *
1421          * Devlink core will call this device driver function upon user request
1422          * to create a new port function of a specified flavor and optional
1423          * attributes
1424          *
1425          * Notes:
1426          *      - Called without devlink instance lock being held. Drivers must
1427          *        implement own means of synchronization
1428          *      - On success, drivers must register a port with devlink core
1429          *
1430          * Return: 0 on success, negative value otherwise.
1431          */
1432         int (*port_new)(struct devlink *devlink,
1433                         const struct devlink_port_new_attrs *attrs,
1434                         struct netlink_ext_ack *extack,
1435                         unsigned int *new_port_index);
1436         /**
1437          * port_del() - Delete a port function
1438          * @devlink: Devlink instance
1439          * @port_index: port function index to delete
1440          * @extack: extack for reporting error messages
1441          *
1442          * Devlink core will call this device driver function upon user request
1443          * to delete a previously created port function
1444          *
1445          * Notes:
1446          *      - Called without devlink instance lock being held. Drivers must
1447          *        implement own means of synchronization
1448          *      - On success, drivers must unregister the corresponding devlink
1449          *        port
1450          *
1451          * Return: 0 on success, negative value otherwise.
1452          */
1453         int (*port_del)(struct devlink *devlink, unsigned int port_index,
1454                         struct netlink_ext_ack *extack);
1455         /**
1456          * port_fn_state_get() - Get the state of a port function
1457          * @devlink: Devlink instance
1458          * @port: The devlink port
1459          * @state: Admin configured state
1460          * @opstate: Current operational state
1461          * @extack: extack for reporting error messages
1462          *
1463          * Reports the admin and operational state of a devlink port function
1464          *
1465          * Return: 0 on success, negative value otherwise.
1466          */
1467         int (*port_fn_state_get)(struct devlink *devlink,
1468                                  struct devlink_port *port,
1469                                  enum devlink_port_fn_state *state,
1470                                  enum devlink_port_fn_opstate *opstate,
1471                                  struct netlink_ext_ack *extack);
1472         /**
1473          * port_fn_state_set() - Set the admin state of a port function
1474          * @devlink: Devlink instance
1475          * @port: The devlink port
1476          * @state: Admin state
1477          * @extack: extack for reporting error messages
1478          *
1479          * Set the admin state of a devlink port function
1480          *
1481          * Return: 0 on success, negative value otherwise.
1482          */
1483         int (*port_fn_state_set)(struct devlink *devlink,
1484                                  struct devlink_port *port,
1485                                  enum devlink_port_fn_state state,
1486                                  struct netlink_ext_ack *extack);
1487
1488         /**
1489          * Rate control callbacks.
1490          */
1491         int (*rate_leaf_tx_share_set)(struct devlink_rate *devlink_rate, void *priv,
1492                                       u64 tx_share, struct netlink_ext_ack *extack);
1493         int (*rate_leaf_tx_max_set)(struct devlink_rate *devlink_rate, void *priv,
1494                                     u64 tx_max, struct netlink_ext_ack *extack);
1495         int (*rate_node_tx_share_set)(struct devlink_rate *devlink_rate, void *priv,
1496                                       u64 tx_share, struct netlink_ext_ack *extack);
1497         int (*rate_node_tx_max_set)(struct devlink_rate *devlink_rate, void *priv,
1498                                     u64 tx_max, struct netlink_ext_ack *extack);
1499         int (*rate_node_new)(struct devlink_rate *rate_node, void **priv,
1500                              struct netlink_ext_ack *extack);
1501         int (*rate_node_del)(struct devlink_rate *rate_node, void *priv,
1502                              struct netlink_ext_ack *extack);
1503         int (*rate_leaf_parent_set)(struct devlink_rate *child,
1504                                     struct devlink_rate *parent,
1505                                     void *priv_child, void *priv_parent,
1506                                     struct netlink_ext_ack *extack);
1507         int (*rate_node_parent_set)(struct devlink_rate *child,
1508                                     struct devlink_rate *parent,
1509                                     void *priv_child, void *priv_parent,
1510                                     struct netlink_ext_ack *extack);
1511 };
1512
1513 static inline void *devlink_priv(struct devlink *devlink)
1514 {
1515         BUG_ON(!devlink);
1516         return &devlink->priv;
1517 }
1518
1519 static inline struct devlink *priv_to_devlink(void *priv)
1520 {
1521         BUG_ON(!priv);
1522         return container_of(priv, struct devlink, priv);
1523 }
1524
1525 static inline struct devlink_port *
1526 netdev_to_devlink_port(struct net_device *dev)
1527 {
1528         if (dev->netdev_ops->ndo_get_devlink_port)
1529                 return dev->netdev_ops->ndo_get_devlink_port(dev);
1530         return NULL;
1531 }
1532
1533 static inline struct devlink *netdev_to_devlink(struct net_device *dev)
1534 {
1535         struct devlink_port *devlink_port = netdev_to_devlink_port(dev);
1536
1537         if (devlink_port)
1538                 return devlink_port->devlink;
1539         return NULL;
1540 }
1541
1542 struct ib_device;
1543
1544 struct net *devlink_net(const struct devlink *devlink);
1545 void devlink_net_set(struct devlink *devlink, struct net *net);
1546 struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size);
1547 int devlink_register(struct devlink *devlink, struct device *dev);
1548 void devlink_unregister(struct devlink *devlink);
1549 void devlink_reload_enable(struct devlink *devlink);
1550 void devlink_reload_disable(struct devlink *devlink);
1551 void devlink_free(struct devlink *devlink);
1552 int devlink_port_register(struct devlink *devlink,
1553                           struct devlink_port *devlink_port,
1554                           unsigned int port_index);
1555 void devlink_port_unregister(struct devlink_port *devlink_port);
1556 void devlink_port_type_eth_set(struct devlink_port *devlink_port,
1557                                struct net_device *netdev);
1558 void devlink_port_type_ib_set(struct devlink_port *devlink_port,
1559                               struct ib_device *ibdev);
1560 void devlink_port_type_clear(struct devlink_port *devlink_port);
1561 void devlink_port_attrs_set(struct devlink_port *devlink_port,
1562                             struct devlink_port_attrs *devlink_port_attrs);
1563 void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 controller,
1564                                    u16 pf, bool external);
1565 void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 controller,
1566                                    u16 pf, u16 vf, bool external);
1567 void devlink_port_attrs_pci_sf_set(struct devlink_port *devlink_port,
1568                                    u32 controller, u16 pf, u32 sf,
1569                                    bool external);
1570 int devlink_rate_leaf_create(struct devlink_port *port, void *priv);
1571 void devlink_rate_leaf_destroy(struct devlink_port *devlink_port);
1572 void devlink_rate_nodes_destroy(struct devlink *devlink);
1573 int devlink_sb_register(struct devlink *devlink, unsigned int sb_index,
1574                         u32 size, u16 ingress_pools_count,
1575                         u16 egress_pools_count, u16 ingress_tc_count,
1576                         u16 egress_tc_count);
1577 void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index);
1578 int devlink_dpipe_table_register(struct devlink *devlink,
1579                                  const char *table_name,
1580                                  struct devlink_dpipe_table_ops *table_ops,
1581                                  void *priv, bool counter_control_extern);
1582 void devlink_dpipe_table_unregister(struct devlink *devlink,
1583                                     const char *table_name);
1584 int devlink_dpipe_headers_register(struct devlink *devlink,
1585                                    struct devlink_dpipe_headers *dpipe_headers);
1586 void devlink_dpipe_headers_unregister(struct devlink *devlink);
1587 bool devlink_dpipe_table_counter_enabled(struct devlink *devlink,
1588                                          const char *table_name);
1589 int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx);
1590 int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx,
1591                                    struct devlink_dpipe_entry *entry);
1592 int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx);
1593 void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry);
1594 int devlink_dpipe_action_put(struct sk_buff *skb,
1595                              struct devlink_dpipe_action *action);
1596 int devlink_dpipe_match_put(struct sk_buff *skb,
1597                             struct devlink_dpipe_match *match);
1598 extern struct devlink_dpipe_header devlink_dpipe_header_ethernet;
1599 extern struct devlink_dpipe_header devlink_dpipe_header_ipv4;
1600 extern struct devlink_dpipe_header devlink_dpipe_header_ipv6;
1601
1602 int devlink_resource_register(struct devlink *devlink,
1603                               const char *resource_name,
1604                               u64 resource_size,
1605                               u64 resource_id,
1606                               u64 parent_resource_id,
1607                               const struct devlink_resource_size_params *size_params);
1608 void devlink_resources_unregister(struct devlink *devlink,
1609                                   struct devlink_resource *resource);
1610 int devlink_resource_size_get(struct devlink *devlink,
1611                               u64 resource_id,
1612                               u64 *p_resource_size);
1613 int devlink_dpipe_table_resource_set(struct devlink *devlink,
1614                                      const char *table_name, u64 resource_id,
1615                                      u64 resource_units);
1616 void devlink_resource_occ_get_register(struct devlink *devlink,
1617                                        u64 resource_id,
1618                                        devlink_resource_occ_get_t *occ_get,
1619                                        void *occ_get_priv);
1620 void devlink_resource_occ_get_unregister(struct devlink *devlink,
1621                                          u64 resource_id);
1622 int devlink_params_register(struct devlink *devlink,
1623                             const struct devlink_param *params,
1624                             size_t params_count);
1625 void devlink_params_unregister(struct devlink *devlink,
1626                                const struct devlink_param *params,
1627                                size_t params_count);
1628 void devlink_params_publish(struct devlink *devlink);
1629 void devlink_params_unpublish(struct devlink *devlink);
1630 int devlink_port_params_register(struct devlink_port *devlink_port,
1631                                  const struct devlink_param *params,
1632                                  size_t params_count);
1633 void devlink_port_params_unregister(struct devlink_port *devlink_port,
1634                                     const struct devlink_param *params,
1635                                     size_t params_count);
1636 int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
1637                                        union devlink_param_value *init_val);
1638 int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
1639                                        union devlink_param_value init_val);
1640 int
1641 devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port,
1642                                         u32 param_id,
1643                                         union devlink_param_value *init_val);
1644 int devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port,
1645                                             u32 param_id,
1646                                             union devlink_param_value init_val);
1647 void devlink_param_value_changed(struct devlink *devlink, u32 param_id);
1648 void devlink_port_param_value_changed(struct devlink_port *devlink_port,
1649                                       u32 param_id);
1650 void devlink_param_value_str_fill(union devlink_param_value *dst_val,
1651                                   const char *src);
1652 struct devlink_region *
1653 devlink_region_create(struct devlink *devlink,
1654                       const struct devlink_region_ops *ops,
1655                       u32 region_max_snapshots, u64 region_size);
1656 struct devlink_region *
1657 devlink_port_region_create(struct devlink_port *port,
1658                            const struct devlink_port_region_ops *ops,
1659                            u32 region_max_snapshots, u64 region_size);
1660 void devlink_region_destroy(struct devlink_region *region);
1661 void devlink_port_region_destroy(struct devlink_region *region);
1662
1663 int devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id);
1664 void devlink_region_snapshot_id_put(struct devlink *devlink, u32 id);
1665 int devlink_region_snapshot_create(struct devlink_region *region,
1666                                    u8 *data, u32 snapshot_id);
1667 int devlink_info_serial_number_put(struct devlink_info_req *req,
1668                                    const char *sn);
1669 int devlink_info_driver_name_put(struct devlink_info_req *req,
1670                                  const char *name);
1671 int devlink_info_board_serial_number_put(struct devlink_info_req *req,
1672                                          const char *bsn);
1673 int devlink_info_version_fixed_put(struct devlink_info_req *req,
1674                                    const char *version_name,
1675                                    const char *version_value);
1676 int devlink_info_version_stored_put(struct devlink_info_req *req,
1677                                     const char *version_name,
1678                                     const char *version_value);
1679 int devlink_info_version_running_put(struct devlink_info_req *req,
1680                                      const char *version_name,
1681                                      const char *version_value);
1682
1683 int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg);
1684 int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg);
1685
1686 int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name);
1687 int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg);
1688
1689 int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg,
1690                                      const char *name);
1691 int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg);
1692 int devlink_fmsg_binary_pair_nest_start(struct devlink_fmsg *fmsg,
1693                                         const char *name);
1694 int devlink_fmsg_binary_pair_nest_end(struct devlink_fmsg *fmsg);
1695
1696 int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value);
1697 int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value);
1698 int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value);
1699 int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value);
1700 int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value);
1701 int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value,
1702                             u16 value_len);
1703
1704 int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name,
1705                                bool value);
1706 int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name,
1707                              u8 value);
1708 int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name,
1709                               u32 value);
1710 int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name,
1711                               u64 value);
1712 int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name,
1713                                  const char *value);
1714 int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name,
1715                                  const void *value, u32 value_len);
1716
1717 struct devlink_health_reporter *
1718 devlink_health_reporter_create(struct devlink *devlink,
1719                                const struct devlink_health_reporter_ops *ops,
1720                                u64 graceful_period, void *priv);
1721
1722 struct devlink_health_reporter *
1723 devlink_port_health_reporter_create(struct devlink_port *port,
1724                                     const struct devlink_health_reporter_ops *ops,
1725                                     u64 graceful_period, void *priv);
1726
1727 void
1728 devlink_health_reporter_destroy(struct devlink_health_reporter *reporter);
1729
1730 void
1731 devlink_port_health_reporter_destroy(struct devlink_health_reporter *reporter);
1732
1733 void *
1734 devlink_health_reporter_priv(struct devlink_health_reporter *reporter);
1735 int devlink_health_report(struct devlink_health_reporter *reporter,
1736                           const char *msg, void *priv_ctx);
1737 void
1738 devlink_health_reporter_state_update(struct devlink_health_reporter *reporter,
1739                                      enum devlink_health_reporter_state state);
1740 void
1741 devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter);
1742
1743 bool devlink_is_reload_failed(const struct devlink *devlink);
1744 void devlink_remote_reload_actions_performed(struct devlink *devlink,
1745                                              enum devlink_reload_limit limit,
1746                                              u32 actions_performed);
1747
1748 void devlink_flash_update_status_notify(struct devlink *devlink,
1749                                         const char *status_msg,
1750                                         const char *component,
1751                                         unsigned long done,
1752                                         unsigned long total);
1753 void devlink_flash_update_timeout_notify(struct devlink *devlink,
1754                                          const char *status_msg,
1755                                          const char *component,
1756                                          unsigned long timeout);
1757
1758 int devlink_traps_register(struct devlink *devlink,
1759                            const struct devlink_trap *traps,
1760                            size_t traps_count, void *priv);
1761 void devlink_traps_unregister(struct devlink *devlink,
1762                               const struct devlink_trap *traps,
1763                               size_t traps_count);
1764 void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb,
1765                          void *trap_ctx, struct devlink_port *in_devlink_port,
1766                          const struct flow_action_cookie *fa_cookie);
1767 void *devlink_trap_ctx_priv(void *trap_ctx);
1768 int devlink_trap_groups_register(struct devlink *devlink,
1769                                  const struct devlink_trap_group *groups,
1770                                  size_t groups_count);
1771 void devlink_trap_groups_unregister(struct devlink *devlink,
1772                                     const struct devlink_trap_group *groups,
1773                                     size_t groups_count);
1774 int
1775 devlink_trap_policers_register(struct devlink *devlink,
1776                                const struct devlink_trap_policer *policers,
1777                                size_t policers_count);
1778 void
1779 devlink_trap_policers_unregister(struct devlink *devlink,
1780                                  const struct devlink_trap_policer *policers,
1781                                  size_t policers_count);
1782
1783 #if IS_ENABLED(CONFIG_NET_DEVLINK)
1784
1785 void devlink_compat_running_version(struct net_device *dev,
1786                                     char *buf, size_t len);
1787 int devlink_compat_flash_update(struct net_device *dev, const char *file_name);
1788 int devlink_compat_phys_port_name_get(struct net_device *dev,
1789                                       char *name, size_t len);
1790 int devlink_compat_switch_id_get(struct net_device *dev,
1791                                  struct netdev_phys_item_id *ppid);
1792
1793 #else
1794
1795 static inline void
1796 devlink_compat_running_version(struct net_device *dev, char *buf, size_t len)
1797 {
1798 }
1799
1800 static inline int
1801 devlink_compat_flash_update(struct net_device *dev, const char *file_name)
1802 {
1803         return -EOPNOTSUPP;
1804 }
1805
1806 static inline int
1807 devlink_compat_phys_port_name_get(struct net_device *dev,
1808                                   char *name, size_t len)
1809 {
1810         return -EOPNOTSUPP;
1811 }
1812
1813 static inline int
1814 devlink_compat_switch_id_get(struct net_device *dev,
1815                              struct netdev_phys_item_id *ppid)
1816 {
1817         return -EOPNOTSUPP;
1818 }
1819
1820 #endif
1821
1822 #endif /* _NET_DEVLINK_H_ */