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 struct devlink;
  25 struct devlink_linecard;
  26
  27 struct devlink_port_phys_attrs {
  28         u32 port_number; /* Same value as "split group".
  29                           * A physical port which is visible to the user
  30                           * for a given port flavour.
  31                           */
  32         u32 split_subport_number; /* If the port is split, this is the number of subport. */
  33 };
  34
  35 /**
  36  * struct devlink_port_pci_pf_attrs - devlink port's PCI PF attributes
  37  * @controller: Associated controller number
  38  * @pf: Associated PCI PF number for this port.
  39  * @external: when set, indicates if a port is for an external controller
  40  */
  41 struct devlink_port_pci_pf_attrs {
  42         u32 controller;
  43         u16 pf;
  44         u8 external:1;
  45 };
  46
  47 /**
  48  * struct devlink_port_pci_vf_attrs - devlink port's PCI VF attributes
  49  * @controller: Associated controller number
  50  * @pf: Associated PCI PF number for this port.
  51  * @vf: Associated PCI VF for of the PCI PF for this port.
  52  * @external: when set, indicates if a port is for an external controller
  53  */
  54 struct devlink_port_pci_vf_attrs {
  55         u32 controller;
  56         u16 pf;
  57         u16 vf;
  58         u8 external:1;
  59 };
  60
  61 /**
  62  * struct devlink_port_pci_sf_attrs - devlink port's PCI SF attributes
  63  * @controller: Associated controller number
  64  * @sf: Associated PCI SF for of the PCI PF for this port.
  65  * @pf: Associated PCI PF number for this port.
  66  * @external: when set, indicates if a port is for an external controller
  67  */
  68 struct devlink_port_pci_sf_attrs {
  69         u32 controller;
  70         u32 sf;
  71         u16 pf;
  72         u8 external:1;
  73 };
  74
  75 /**
  76  * struct devlink_port_attrs - devlink port object
  77  * @flavour: flavour of the port
  78  * @split: indicates if this is split port
  79  * @splittable: indicates if the port can be split.
  80  * @lanes: maximum number of lanes the port supports. 0 value is not passed to netlink.
  81  * @switch_id: if the port is part of switch, this is buffer with ID, otherwise this is NULL
  82  * @phys: physical port attributes
  83  * @pci_pf: PCI PF port attributes
  84  * @pci_vf: PCI VF port attributes
  85  * @pci_sf: PCI SF port attributes
  86  */
  87 struct devlink_port_attrs {
  88         u8 split:1,
  89            splittable:1;
  90         u32 lanes;
  91         enum devlink_port_flavour flavour;
  92         struct netdev_phys_item_id switch_id;
  93         union {
  94                 struct devlink_port_phys_attrs phys;
  95                 struct devlink_port_pci_pf_attrs pci_pf;
  96                 struct devlink_port_pci_vf_attrs pci_vf;
  97                 struct devlink_port_pci_sf_attrs pci_sf;
  98         };
  99 };
 100
 101 struct devlink_rate {
 102         struct list_head list;
 103         enum devlink_rate_type type;
 104         struct devlink *devlink;
 105         void *priv;
 106         u64 tx_share;
 107         u64 tx_max;
 108
 109         struct devlink_rate *parent;
 110         union {
 111                 struct devlink_port *devlink_port;
 112                 struct {
 113                         char *name;
 114                         refcount_t refcnt;
 115                 };
 116         };
 117
 118         u32 tx_priority;
 119         u32 tx_weight;
 120 };
 121
 122 struct devlink_port {
 123         struct list_head list;
 124         struct list_head region_list;
 125         struct devlink *devlink;
 126         const struct devlink_port_ops *ops;
 127         unsigned int index;
 128         spinlock_t type_lock; /* Protects type and type_eth/ib
 129                                * structures consistency.
 130                                */
 131         enum devlink_port_type type;
 132         enum devlink_port_type desired_type;
 133         union {
 134                 struct {
 135                         struct net_device *netdev;
 136                         int ifindex;
 137                         char ifname[IFNAMSIZ];
 138                 } type_eth;
 139                 struct {
 140                         struct ib_device *ibdev;
 141                 } type_ib;
 142         };
 143         struct devlink_port_attrs attrs;
 144         u8 attrs_set:1,
 145            switch_port:1,
 146            registered:1,
 147            initialized:1;
 148         struct delayed_work type_warn_dw;
 149         struct list_head reporter_list;
 150
 151         struct devlink_rate *devlink_rate;
 152         struct devlink_linecard *linecard;
 153         u32 rel_index;
 154 };
 155
 156 struct devlink_port_new_attrs {
 157         enum devlink_port_flavour flavour;
 158         unsigned int port_index;
 159         u32 controller;
 160         u32 sfnum;
 161         u16 pfnum;
 162         u8 port_index_valid:1,
 163            controller_valid:1,
 164            sfnum_valid:1;
 165 };
 166
 167 /**
 168  * struct devlink_linecard_ops - Linecard operations
 169  * @provision: callback to provision the linecard slot with certain
 170  *             type of linecard. As a result of this operation,
 171  *             driver is expected to eventually (could be after
 172  *             the function call returns) call one of:
 173  *             devlink_linecard_provision_set()
 174  *             devlink_linecard_provision_fail()
 175  * @unprovision: callback to unprovision the linecard slot. As a result
 176  *               of this operation, driver is expected to eventually
 177  *               (could be after the function call returns) call
 178  *               devlink_linecard_provision_clear()
 179  *               devlink_linecard_provision_fail()
 180  * @same_provision: callback to ask the driver if linecard is already
 181  *                  provisioned in the same way user asks this linecard to be
 182  *                  provisioned.
 183  * @types_count: callback to get number of supported types
 184  * @types_get: callback to get next type in list
 185  */
 186 struct devlink_linecard_ops {
 187         int (*provision)(struct devlink_linecard *linecard, void *priv,
 188                          const char *type, const void *type_priv,
 189                          struct netlink_ext_ack *extack);
 190         int (*unprovision)(struct devlink_linecard *linecard, void *priv,
 191                            struct netlink_ext_ack *extack);
 192         bool (*same_provision)(struct devlink_linecard *linecard, void *priv,
 193                                const char *type, const void *type_priv);
 194         unsigned int (*types_count)(struct devlink_linecard *linecard,
 195                                     void *priv);
 196         void (*types_get)(struct devlink_linecard *linecard,
 197                           void *priv, unsigned int index, const char **type,
 198                           const void **type_priv);
 199 };
 200
 201 struct devlink_sb_pool_info {
 202         enum devlink_sb_pool_type pool_type;
 203         u32 size;
 204         enum devlink_sb_threshold_type threshold_type;
 205         u32 cell_size;
 206 };
 207
 208 /**
 209  * struct devlink_dpipe_field - dpipe field object
 210  * @name: field name
 211  * @id: index inside the headers field array
 212  * @bitwidth: bitwidth
 213  * @mapping_type: mapping type
 214  */
 215 struct devlink_dpipe_field {
 216         const char *name;
 217         unsigned int id;
 218         unsigned int bitwidth;
 219         enum devlink_dpipe_field_mapping_type mapping_type;
 220 };
 221
 222 /**
 223  * struct devlink_dpipe_header - dpipe header object
 224  * @name: header name
 225  * @id: index, global/local determined by global bit
 226  * @fields: fields
 227  * @fields_count: number of fields
 228  * @global: indicates if header is shared like most protocol header
 229  *          or driver specific
 230  */
 231 struct devlink_dpipe_header {
 232         const char *name;
 233         unsigned int id;
 234         struct devlink_dpipe_field *fields;
 235         unsigned int fields_count;
 236         bool global;
 237 };
 238
 239 /**
 240  * struct devlink_dpipe_match - represents match operation
 241  * @type: type of match
 242  * @header_index: header index (packets can have several headers of same
 243  *                type like in case of tunnels)
 244  * @header: header
 245  * @field_id: field index
 246  */
 247 struct devlink_dpipe_match {
 248         enum devlink_dpipe_match_type type;
 249         unsigned int header_index;
 250         struct devlink_dpipe_header *header;
 251         unsigned int field_id;
 252 };
 253
 254 /**
 255  * struct devlink_dpipe_action - represents action operation
 256  * @type: type of action
 257  * @header_index: header index (packets can have several headers of same
 258  *                type like in case of tunnels)
 259  * @header: header
 260  * @field_id: field index
 261  */
 262 struct devlink_dpipe_action {
 263         enum devlink_dpipe_action_type type;
 264         unsigned int header_index;
 265         struct devlink_dpipe_header *header;
 266         unsigned int field_id;
 267 };
 268
 269 /**
 270  * struct devlink_dpipe_value - represents value of match/action
 271  * @action: action
 272  * @match: match
 273  * @mapping_value: in case the field has some mapping this value
 274  *                 specified the mapping value
 275  * @mapping_valid: specify if mapping value is valid
 276  * @value_size: value size
 277  * @value: value
 278  * @mask: bit mask
 279  */
 280 struct devlink_dpipe_value {
 281         union {
 282                 struct devlink_dpipe_action *action;
 283                 struct devlink_dpipe_match *match;
 284         };
 285         unsigned int mapping_value;
 286         bool mapping_valid;
 287         unsigned int value_size;
 288         void *value;
 289         void *mask;
 290 };
 291
 292 /**
 293  * struct devlink_dpipe_entry - table entry object
 294  * @index: index of the entry in the table
 295  * @match_values: match values
 296  * @match_values_count: count of matches tuples
 297  * @action_values: actions values
 298  * @action_values_count: count of actions values
 299  * @counter: value of counter
 300  * @counter_valid: Specify if value is valid from hardware
 301  */
 302 struct devlink_dpipe_entry {
 303         u64 index;
 304         struct devlink_dpipe_value *match_values;
 305         unsigned int match_values_count;
 306         struct devlink_dpipe_value *action_values;
 307         unsigned int action_values_count;
 308         u64 counter;
 309         bool counter_valid;
 310 };
 311
 312 /**
 313  * struct devlink_dpipe_dump_ctx - context provided to driver in order
 314  *                                 to dump
 315  * @info: info
 316  * @cmd: devlink command
 317  * @skb: skb
 318  * @nest: top attribute
 319  * @hdr: hdr
 320  */
 321 struct devlink_dpipe_dump_ctx {
 322         struct genl_info *info;
 323         enum devlink_command cmd;
 324         struct sk_buff *skb;
 325         struct nlattr *nest;
 326         void *hdr;
 327 };
 328
 329 struct devlink_dpipe_table_ops;
 330
 331 /**
 332  * struct devlink_dpipe_table - table object
 333  * @priv: private
 334  * @name: table name
 335  * @counters_enabled: indicates if counters are active
 336  * @counter_control_extern: indicates if counter control is in dpipe or
 337  *                          external tool
 338  * @resource_valid: Indicate that the resource id is valid
 339  * @resource_id: relative resource this table is related to
 340  * @resource_units: number of resource's unit consumed per table's entry
 341  * @table_ops: table operations
 342  * @rcu: rcu
 343  */
 344 struct devlink_dpipe_table {
 345         void *priv;
 346         /* private: */
 347         struct list_head list;
 348         /* public: */
 349         const char *name;
 350         bool counters_enabled;
 351         bool counter_control_extern;
 352         bool resource_valid;
 353         u64 resource_id;
 354         u64 resource_units;
 355         const struct devlink_dpipe_table_ops *table_ops;
 356         struct rcu_head rcu;
 357 };
 358
 359 /**
 360  * struct devlink_dpipe_table_ops - dpipe_table ops
 361  * @actions_dump: dumps all tables actions
 362  * @matches_dump: dumps all tables matches
 363  * @entries_dump: dumps all active entries in the table
 364  * @counters_set_update:  when changing the counter status hardware sync
 365  *                        maybe needed to allocate/free counter related
 366  *                        resources
 367  * @size_get: get size
 368  */
 369 struct devlink_dpipe_table_ops {
 370         int (*actions_dump)(void *priv, struct sk_buff *skb);
 371         int (*matches_dump)(void *priv, struct sk_buff *skb);
 372         int (*entries_dump)(void *priv, bool counters_enabled,
 373                             struct devlink_dpipe_dump_ctx *dump_ctx);
 374         int (*counters_set_update)(void *priv, bool enable);
 375         u64 (*size_get)(void *priv);
 376 };
 377
 378 /**
 379  * struct devlink_dpipe_headers - dpipe headers
 380  * @headers: header array can be shared (global bit) or driver specific
 381  * @headers_count: count of headers
 382  */
 383 struct devlink_dpipe_headers {
 384         struct devlink_dpipe_header **headers;
 385         unsigned int headers_count;
 386 };
 387
 388 /**
 389  * struct devlink_resource_size_params - resource's size parameters
 390  * @size_min: minimum size which can be set
 391  * @size_max: maximum size which can be set
 392  * @size_granularity: size granularity
 393  * @unit: resource's basic unit
 394  */
 395 struct devlink_resource_size_params {
 396         u64 size_min;
 397         u64 size_max;
 398         u64 size_granularity;
 399         enum devlink_resource_unit unit;
 400 };
 401
 402 static inline void
 403 devlink_resource_size_params_init(struct devlink_resource_size_params *size_params,
 404                                   u64 size_min, u64 size_max,
 405                                   u64 size_granularity,
 406                                   enum devlink_resource_unit unit)
 407 {
 408         size_params->size_min = size_min;
 409         size_params->size_max = size_max;
 410         size_params->size_granularity = size_granularity;
 411         size_params->unit = unit;
 412 }
 413
 414 typedef u64 devlink_resource_occ_get_t(void *priv);
 415
 416 #define DEVLINK_RESOURCE_ID_PARENT_TOP 0
 417
 418 #define DEVLINK_RESOURCE_GENERIC_NAME_PORTS "physical_ports"
 419
 420 #define __DEVLINK_PARAM_MAX_STRING_VALUE 32
 421 enum devlink_param_type {
 422         DEVLINK_PARAM_TYPE_U8,
 423         DEVLINK_PARAM_TYPE_U16,
 424         DEVLINK_PARAM_TYPE_U32,
 425         DEVLINK_PARAM_TYPE_STRING,
 426         DEVLINK_PARAM_TYPE_BOOL,
 427 };
 428
 429 union devlink_param_value {
 430         u8 vu8;
 431         u16 vu16;
 432         u32 vu32;
 433         char vstr[__DEVLINK_PARAM_MAX_STRING_VALUE];
 434         bool vbool;
 435 };
 436
 437 struct devlink_param_gset_ctx {
 438         union devlink_param_value val;
 439         enum devlink_param_cmode cmode;
 440 };
 441
 442 /**
 443  * struct devlink_flash_notify - devlink dev flash notify data
 444  * @status_msg: current status string
 445  * @component: firmware component being updated
 446  * @done: amount of work completed of total amount
 447  * @total: amount of work expected to be done
 448  * @timeout: expected max timeout in seconds
 449  *
 450  * These are values to be given to userland to be displayed in order
 451  * to show current activity in a firmware update process.
 452  */
 453 struct devlink_flash_notify {
 454         const char *status_msg;
 455         const char *component;
 456         unsigned long done;
 457         unsigned long total;
 458         unsigned long timeout;
 459 };
 460
 461 /**
 462  * struct devlink_param - devlink configuration parameter data
 463  * @id: devlink parameter id number
 464  * @name: name of the parameter
 465  * @generic: indicates if the parameter is generic or driver specific
 466  * @type: parameter type
 467  * @supported_cmodes: bitmap of supported configuration modes
 468  * @get: get parameter value, used for runtime and permanent
 469  *       configuration modes
 470  * @set: set parameter value, used for runtime and permanent
 471  *       configuration modes
 472  * @validate: validate input value is applicable (within value range, etc.)
 473  *
 474  * This struct should be used by the driver to fill the data for
 475  * a parameter it registers.
 476  */
 477 struct devlink_param {
 478         u32 id;
 479         const char *name;
 480         bool generic;
 481         enum devlink_param_type type;
 482         unsigned long supported_cmodes;
 483         int (*get)(struct devlink *devlink, u32 id,
 484                    struct devlink_param_gset_ctx *ctx);
 485         int (*set)(struct devlink *devlink, u32 id,
 486                    struct devlink_param_gset_ctx *ctx,
 487                    struct netlink_ext_ack *extack);
 488         int (*validate)(struct devlink *devlink, u32 id,
 489                         union devlink_param_value val,
 490                         struct netlink_ext_ack *extack);
 491 };
 492
 493 struct devlink_param_item {
 494         struct list_head list;
 495         const struct devlink_param *param;
 496         union devlink_param_value driverinit_value;
 497         bool driverinit_value_valid;
 498         union devlink_param_value driverinit_value_new; /* Not reachable
 499                                                          * until reload.
 500                                                          */
 501         bool driverinit_value_new_valid;
 502 };
 503
 504 enum devlink_param_generic_id {
 505         DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
 506         DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
 507         DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV,
 508         DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,
 509         DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI,
 510         DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
 511         DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
 512         DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
 513         DEVLINK_PARAM_GENERIC_ID_RESET_DEV_ON_DRV_PROBE,
 514         DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
 515         DEVLINK_PARAM_GENERIC_ID_ENABLE_REMOTE_DEV_RESET,
 516         DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH,
 517         DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA,
 518         DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET,
 519         DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP,
 520         DEVLINK_PARAM_GENERIC_ID_IO_EQ_SIZE,
 521         DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE,
 522
 523         /* add new param generic ids above here*/
 524         __DEVLINK_PARAM_GENERIC_ID_MAX,
 525         DEVLINK_PARAM_GENERIC_ID_MAX = __DEVLINK_PARAM_GENERIC_ID_MAX - 1,
 526 };
 527
 528 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME "internal_error_reset"
 529 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL
 530
 531 #define DEVLINK_PARAM_GENERIC_MAX_MACS_NAME "max_macs"
 532 #define DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE DEVLINK_PARAM_TYPE_U32
 533
 534 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME "enable_sriov"
 535 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE DEVLINK_PARAM_TYPE_BOOL
 536
 537 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME "region_snapshot_enable"
 538 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE DEVLINK_PARAM_TYPE_BOOL
 539
 540 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME "ignore_ari"
 541 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE DEVLINK_PARAM_TYPE_BOOL
 542
 543 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME "msix_vec_per_pf_max"
 544 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE DEVLINK_PARAM_TYPE_U32
 545
 546 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME "msix_vec_per_pf_min"
 547 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE DEVLINK_PARAM_TYPE_U32
 548
 549 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME "fw_load_policy"
 550 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE DEVLINK_PARAM_TYPE_U8
 551
 552 #define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_NAME \
 553         "reset_dev_on_drv_probe"
 554 #define DEVLINK_PARAM_GENERIC_RESET_DEV_ON_DRV_PROBE_TYPE DEVLINK_PARAM_TYPE_U8
 555
 556 #define DEVLINK_PARAM_GENERIC_ENABLE_ROCE_NAME "enable_roce"
 557 #define DEVLINK_PARAM_GENERIC_ENABLE_ROCE_TYPE DEVLINK_PARAM_TYPE_BOOL
 558
 559 #define DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_NAME "enable_remote_dev_reset"
 560 #define DEVLINK_PARAM_GENERIC_ENABLE_REMOTE_DEV_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL
 561
 562 #define DEVLINK_PARAM_GENERIC_ENABLE_ETH_NAME "enable_eth"
 563 #define DEVLINK_PARAM_GENERIC_ENABLE_ETH_TYPE DEVLINK_PARAM_TYPE_BOOL
 564
 565 #define DEVLINK_PARAM_GENERIC_ENABLE_RDMA_NAME "enable_rdma"
 566 #define DEVLINK_PARAM_GENERIC_ENABLE_RDMA_TYPE DEVLINK_PARAM_TYPE_BOOL
 567
 568 #define DEVLINK_PARAM_GENERIC_ENABLE_VNET_NAME "enable_vnet"
 569 #define DEVLINK_PARAM_GENERIC_ENABLE_VNET_TYPE DEVLINK_PARAM_TYPE_BOOL
 570
 571 #define DEVLINK_PARAM_GENERIC_ENABLE_IWARP_NAME "enable_iwarp"
 572 #define DEVLINK_PARAM_GENERIC_ENABLE_IWARP_TYPE DEVLINK_PARAM_TYPE_BOOL
 573
 574 #define DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_NAME "io_eq_size"
 575 #define DEVLINK_PARAM_GENERIC_IO_EQ_SIZE_TYPE DEVLINK_PARAM_TYPE_U32
 576
 577 #define DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_NAME "event_eq_size"
 578 #define DEVLINK_PARAM_GENERIC_EVENT_EQ_SIZE_TYPE DEVLINK_PARAM_TYPE_U32
 579
 580 #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate)      \
 581 {                                                                       \
 582         .id = DEVLINK_PARAM_GENERIC_ID_##_id,                           \
 583         .name = DEVLINK_PARAM_GENERIC_##_id##_NAME,                     \
 584         .type = DEVLINK_PARAM_GENERIC_##_id##_TYPE,                     \
 585         .generic = true,                                                \
 586         .supported_cmodes = _cmodes,                                    \
 587         .get = _get,                                                    \
 588         .set = _set,                                                    \
 589         .validate = _validate,                                          \
 590 }
 591
 592 #define DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, _get, _set, _validate) \
 593 {                                                                       \
 594         .id = _id,                                                      \
 595         .name = _name,                                                  \
 596         .type = _type,                                                  \
 597         .supported_cmodes = _cmodes,                                    \
 598         .get = _get,                                                    \
 599         .set = _set,                                                    \
 600         .validate = _validate,                                          \
 601 }
 602
 603 /* Identifier of board design */
 604 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_ID   "board.id"
 605 /* Revision of board design */
 606 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_REV  "board.rev"
 607 /* Maker of the board */
 608 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE  "board.manufacture"
 609 /* Part number of the board and its components */
 610 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_PART_NUMBER  "board.part_number"
 611
 612 /* Part number, identifier of asic design */
 613 #define DEVLINK_INFO_VERSION_GENERIC_ASIC_ID    "asic.id"
 614 /* Revision of asic design */
 615 #define DEVLINK_INFO_VERSION_GENERIC_ASIC_REV   "asic.rev"
 616
 617 /* Overall FW version */
 618 #define DEVLINK_INFO_VERSION_GENERIC_FW         "fw"
 619 /* Control processor FW version */
 620 #define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT    "fw.mgmt"
 621 /* FW interface specification version */
 622 #define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT_API        "fw.mgmt.api"
 623 /* Data path microcode controlling high-speed packet processing */
 624 #define DEVLINK_INFO_VERSION_GENERIC_FW_APP     "fw.app"
 625 /* UNDI software version */
 626 #define DEVLINK_INFO_VERSION_GENERIC_FW_UNDI    "fw.undi"
 627 /* NCSI support/handler version */
 628 #define DEVLINK_INFO_VERSION_GENERIC_FW_NCSI    "fw.ncsi"
 629 /* FW parameter set id */
 630 #define DEVLINK_INFO_VERSION_GENERIC_FW_PSID    "fw.psid"
 631 /* RoCE FW version */
 632 #define DEVLINK_INFO_VERSION_GENERIC_FW_ROCE    "fw.roce"
 633 /* Firmware bundle identifier */
 634 #define DEVLINK_INFO_VERSION_GENERIC_FW_BUNDLE_ID       "fw.bundle_id"
 635 /* Bootloader */
 636 #define DEVLINK_INFO_VERSION_GENERIC_FW_BOOTLOADER      "fw.bootloader"
 637
 638 /**
 639  * struct devlink_flash_update_params - Flash Update parameters
 640  * @fw: pointer to the firmware data to update from
 641  * @component: the flash component to update
 642  * @overwrite_mask: which types of flash update are supported (may be %0)
 643  *
 644  * With the exception of fw, drivers must opt-in to parameters by
 645  * setting the appropriate bit in the supported_flash_update_params field in
 646  * their devlink_ops structure.
 647  */
 648 struct devlink_flash_update_params {
 649         const struct firmware *fw;
 650         const char *component;
 651         u32 overwrite_mask;
 652 };
 653
 654 #define DEVLINK_SUPPORT_FLASH_UPDATE_OVERWRITE_MASK     BIT(0)
 655
 656 struct devlink_region;
 657 struct devlink_info_req;
 658
 659 /**
 660  * struct devlink_region_ops - Region operations
 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  * @read: callback to directly read a portion of the region. On success,
 668  *        the data pointer will be updated with the contents of the
 669  *        requested portion of the region. The function will be called
 670  *        while the devlink instance lock is held.
 671  * @priv: Pointer to driver private data for the region operation
 672  */
 673 struct devlink_region_ops {
 674         const char *name;
 675         void (*destructor)(const void *data);
 676         int (*snapshot)(struct devlink *devlink,
 677                         const struct devlink_region_ops *ops,
 678                         struct netlink_ext_ack *extack,
 679                         u8 **data);
 680         int (*read)(struct devlink *devlink,
 681                     const struct devlink_region_ops *ops,
 682                     struct netlink_ext_ack *extack,
 683                     u64 offset, u32 size, u8 *data);
 684         void *priv;
 685 };
 686
 687 /**
 688  * struct devlink_port_region_ops - Region operations for a port
 689  * @name: region name
 690  * @destructor: callback used to free snapshot memory when deleting
 691  * @snapshot: callback to request an immediate snapshot. On success,
 692  *            the data variable must be updated to point to the snapshot data.
 693  *            The function will be called while the devlink instance lock is
 694  *            held.
 695  * @read: callback to directly read a portion of the region. On success,
 696  *        the data pointer will be updated with the contents of the
 697  *        requested portion of the region. The function will be called
 698  *        while the devlink instance lock is held.
 699  * @priv: Pointer to driver private data for the region operation
 700  */
 701 struct devlink_port_region_ops {
 702         const char *name;
 703         void (*destructor)(const void *data);
 704         int (*snapshot)(struct devlink_port *port,
 705                         const struct devlink_port_region_ops *ops,
 706                         struct netlink_ext_ack *extack,
 707                         u8 **data);
 708         int (*read)(struct devlink_port *port,
 709                     const struct devlink_port_region_ops *ops,
 710                     struct netlink_ext_ack *extack,
 711                     u64 offset, u32 size, u8 *data);
 712         void *priv;
 713 };
 714
 715 struct devlink_fmsg;
 716 struct devlink_health_reporter;
 717
 718 enum devlink_health_reporter_state {
 719         DEVLINK_HEALTH_REPORTER_STATE_HEALTHY,
 720         DEVLINK_HEALTH_REPORTER_STATE_ERROR,
 721 };
 722
 723 /**
 724  * struct devlink_health_reporter_ops - Reporter operations
 725  * @name: reporter name
 726  * @recover: callback to recover from reported error
 727  *           if priv_ctx is NULL, run a full recover
 728  * @dump: callback to dump an object
 729  *        if priv_ctx is NULL, run a full dump
 730  * @diagnose: callback to diagnose the current status
 731  * @test: callback to trigger a test event
 732  */
 733
 734 struct devlink_health_reporter_ops {
 735         char *name;
 736         int (*recover)(struct devlink_health_reporter *reporter,
 737                        void *priv_ctx, struct netlink_ext_ack *extack);
 738         int (*dump)(struct devlink_health_reporter *reporter,
 739                     struct devlink_fmsg *fmsg, void *priv_ctx,
 740                     struct netlink_ext_ack *extack);
 741         int (*diagnose)(struct devlink_health_reporter *reporter,
 742                         struct devlink_fmsg *fmsg,
 743                         struct netlink_ext_ack *extack);
 744         int (*test)(struct devlink_health_reporter *reporter,
 745                     struct netlink_ext_ack *extack);
 746 };
 747
 748 /**
 749  * struct devlink_trap_metadata - Packet trap metadata.
 750  * @trap_name: Trap name.
 751  * @trap_group_name: Trap group name.
 752  * @input_dev: Input netdevice.
 753  * @dev_tracker: refcount tracker for @input_dev.
 754  * @fa_cookie: Flow action user cookie.
 755  * @trap_type: Trap type.
 756  */
 757 struct devlink_trap_metadata {
 758         const char *trap_name;
 759         const char *trap_group_name;
 760
 761         struct net_device *input_dev;
 762         netdevice_tracker dev_tracker;
 763
 764         const struct flow_action_cookie *fa_cookie;
 765         enum devlink_trap_type trap_type;
 766 };
 767
 768 /**
 769  * struct devlink_trap_policer - Immutable packet trap policer attributes.
 770  * @id: Policer identifier.
 771  * @init_rate: Initial rate in packets / sec.
 772  * @init_burst: Initial burst size in packets.
 773  * @max_rate: Maximum rate.
 774  * @min_rate: Minimum rate.
 775  * @max_burst: Maximum burst size.
 776  * @min_burst: Minimum burst size.
 777  *
 778  * Describes immutable attributes of packet trap policers that drivers register
 779  * with devlink.
 780  */
 781 struct devlink_trap_policer {
 782         u32 id;
 783         u64 init_rate;
 784         u64 init_burst;
 785         u64 max_rate;
 786         u64 min_rate;
 787         u64 max_burst;
 788         u64 min_burst;
 789 };
 790
 791 /**
 792  * struct devlink_trap_group - Immutable packet trap group attributes.
 793  * @name: Trap group name.
 794  * @id: Trap group identifier.
 795  * @generic: Whether the trap group is generic or not.
 796  * @init_policer_id: Initial policer identifier.
 797  *
 798  * Describes immutable attributes of packet trap groups that drivers register
 799  * with devlink.
 800  */
 801 struct devlink_trap_group {
 802         const char *name;
 803         u16 id;
 804         bool generic;
 805         u32 init_policer_id;
 806 };
 807
 808 #define DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT    BIT(0)
 809 #define DEVLINK_TRAP_METADATA_TYPE_F_FA_COOKIE  BIT(1)
 810
 811 /**
 812  * struct devlink_trap - Immutable packet trap attributes.
 813  * @type: Trap type.
 814  * @init_action: Initial trap action.
 815  * @generic: Whether the trap is generic or not.
 816  * @id: Trap identifier.
 817  * @name: Trap name.
 818  * @init_group_id: Initial group identifier.
 819  * @metadata_cap: Metadata types that can be provided by the trap.
 820  *
 821  * Describes immutable attributes of packet traps that drivers register with
 822  * devlink.
 823  */
 824 struct devlink_trap {
 825         enum devlink_trap_type type;
 826         enum devlink_trap_action init_action;
 827         bool generic;
 828         u16 id;
 829         const char *name;
 830         u16 init_group_id;
 831         u32 metadata_cap;
 832 };
 833
 834 /* All traps must be documented in
 835  * Documentation/networking/devlink/devlink-trap.rst
 836  */
 837 enum devlink_trap_generic_id {
 838         DEVLINK_TRAP_GENERIC_ID_SMAC_MC,
 839         DEVLINK_TRAP_GENERIC_ID_VLAN_TAG_MISMATCH,
 840         DEVLINK_TRAP_GENERIC_ID_INGRESS_VLAN_FILTER,
 841         DEVLINK_TRAP_GENERIC_ID_INGRESS_STP_FILTER,
 842         DEVLINK_TRAP_GENERIC_ID_EMPTY_TX_LIST,
 843         DEVLINK_TRAP_GENERIC_ID_PORT_LOOPBACK_FILTER,
 844         DEVLINK_TRAP_GENERIC_ID_BLACKHOLE_ROUTE,
 845         DEVLINK_TRAP_GENERIC_ID_TTL_ERROR,
 846         DEVLINK_TRAP_GENERIC_ID_TAIL_DROP,
 847         DEVLINK_TRAP_GENERIC_ID_NON_IP_PACKET,
 848         DEVLINK_TRAP_GENERIC_ID_UC_DIP_MC_DMAC,
 849         DEVLINK_TRAP_GENERIC_ID_DIP_LB,
 850         DEVLINK_TRAP_GENERIC_ID_SIP_MC,
 851         DEVLINK_TRAP_GENERIC_ID_SIP_LB,
 852         DEVLINK_TRAP_GENERIC_ID_CORRUPTED_IP_HDR,
 853         DEVLINK_TRAP_GENERIC_ID_IPV4_SIP_BC,
 854         DEVLINK_TRAP_GENERIC_ID_IPV6_MC_DIP_RESERVED_SCOPE,
 855         DEVLINK_TRAP_GENERIC_ID_IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE,
 856         DEVLINK_TRAP_GENERIC_ID_MTU_ERROR,
 857         DEVLINK_TRAP_GENERIC_ID_UNRESOLVED_NEIGH,
 858         DEVLINK_TRAP_GENERIC_ID_RPF,
 859         DEVLINK_TRAP_GENERIC_ID_REJECT_ROUTE,
 860         DEVLINK_TRAP_GENERIC_ID_IPV4_LPM_UNICAST_MISS,
 861         DEVLINK_TRAP_GENERIC_ID_IPV6_LPM_UNICAST_MISS,
 862         DEVLINK_TRAP_GENERIC_ID_NON_ROUTABLE,
 863         DEVLINK_TRAP_GENERIC_ID_DECAP_ERROR,
 864         DEVLINK_TRAP_GENERIC_ID_OVERLAY_SMAC_MC,
 865         DEVLINK_TRAP_GENERIC_ID_INGRESS_FLOW_ACTION_DROP,
 866         DEVLINK_TRAP_GENERIC_ID_EGRESS_FLOW_ACTION_DROP,
 867         DEVLINK_TRAP_GENERIC_ID_STP,
 868         DEVLINK_TRAP_GENERIC_ID_LACP,
 869         DEVLINK_TRAP_GENERIC_ID_LLDP,
 870         DEVLINK_TRAP_GENERIC_ID_IGMP_QUERY,
 871         DEVLINK_TRAP_GENERIC_ID_IGMP_V1_REPORT,
 872         DEVLINK_TRAP_GENERIC_ID_IGMP_V2_REPORT,
 873         DEVLINK_TRAP_GENERIC_ID_IGMP_V3_REPORT,
 874         DEVLINK_TRAP_GENERIC_ID_IGMP_V2_LEAVE,
 875         DEVLINK_TRAP_GENERIC_ID_MLD_QUERY,
 876         DEVLINK_TRAP_GENERIC_ID_MLD_V1_REPORT,
 877         DEVLINK_TRAP_GENERIC_ID_MLD_V2_REPORT,
 878         DEVLINK_TRAP_GENERIC_ID_MLD_V1_DONE,
 879         DEVLINK_TRAP_GENERIC_ID_IPV4_DHCP,
 880         DEVLINK_TRAP_GENERIC_ID_IPV6_DHCP,
 881         DEVLINK_TRAP_GENERIC_ID_ARP_REQUEST,
 882         DEVLINK_TRAP_GENERIC_ID_ARP_RESPONSE,
 883         DEVLINK_TRAP_GENERIC_ID_ARP_OVERLAY,
 884         DEVLINK_TRAP_GENERIC_ID_IPV6_NEIGH_SOLICIT,
 885         DEVLINK_TRAP_GENERIC_ID_IPV6_NEIGH_ADVERT,
 886         DEVLINK_TRAP_GENERIC_ID_IPV4_BFD,
 887         DEVLINK_TRAP_GENERIC_ID_IPV6_BFD,
 888         DEVLINK_TRAP_GENERIC_ID_IPV4_OSPF,
 889         DEVLINK_TRAP_GENERIC_ID_IPV6_OSPF,
 890         DEVLINK_TRAP_GENERIC_ID_IPV4_BGP,
 891         DEVLINK_TRAP_GENERIC_ID_IPV6_BGP,
 892         DEVLINK_TRAP_GENERIC_ID_IPV4_VRRP,
 893         DEVLINK_TRAP_GENERIC_ID_IPV6_VRRP,
 894         DEVLINK_TRAP_GENERIC_ID_IPV4_PIM,
 895         DEVLINK_TRAP_GENERIC_ID_IPV6_PIM,
 896         DEVLINK_TRAP_GENERIC_ID_UC_LB,
 897         DEVLINK_TRAP_GENERIC_ID_LOCAL_ROUTE,
 898         DEVLINK_TRAP_GENERIC_ID_EXTERNAL_ROUTE,
 899         DEVLINK_TRAP_GENERIC_ID_IPV6_UC_DIP_LINK_LOCAL_SCOPE,
 900         DEVLINK_TRAP_GENERIC_ID_IPV6_DIP_ALL_NODES,
 901         DEVLINK_TRAP_GENERIC_ID_IPV6_DIP_ALL_ROUTERS,
 902         DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_SOLICIT,
 903         DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_ADVERT,
 904         DEVLINK_TRAP_GENERIC_ID_IPV6_REDIRECT,
 905         DEVLINK_TRAP_GENERIC_ID_IPV4_ROUTER_ALERT,
 906         DEVLINK_TRAP_GENERIC_ID_IPV6_ROUTER_ALERT,
 907         DEVLINK_TRAP_GENERIC_ID_PTP_EVENT,
 908         DEVLINK_TRAP_GENERIC_ID_PTP_GENERAL,
 909         DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_SAMPLE,
 910         DEVLINK_TRAP_GENERIC_ID_FLOW_ACTION_TRAP,
 911         DEVLINK_TRAP_GENERIC_ID_EARLY_DROP,
 912         DEVLINK_TRAP_GENERIC_ID_VXLAN_PARSING,
 913         DEVLINK_TRAP_GENERIC_ID_LLC_SNAP_PARSING,
 914         DEVLINK_TRAP_GENERIC_ID_VLAN_PARSING,
 915         DEVLINK_TRAP_GENERIC_ID_PPPOE_PPP_PARSING,
 916         DEVLINK_TRAP_GENERIC_ID_MPLS_PARSING,
 917         DEVLINK_TRAP_GENERIC_ID_ARP_PARSING,
 918         DEVLINK_TRAP_GENERIC_ID_IP_1_PARSING,
 919         DEVLINK_TRAP_GENERIC_ID_IP_N_PARSING,
 920         DEVLINK_TRAP_GENERIC_ID_GRE_PARSING,
 921         DEVLINK_TRAP_GENERIC_ID_UDP_PARSING,
 922         DEVLINK_TRAP_GENERIC_ID_TCP_PARSING,
 923         DEVLINK_TRAP_GENERIC_ID_IPSEC_PARSING,
 924         DEVLINK_TRAP_GENERIC_ID_SCTP_PARSING,
 925         DEVLINK_TRAP_GENERIC_ID_DCCP_PARSING,
 926         DEVLINK_TRAP_GENERIC_ID_GTP_PARSING,
 927         DEVLINK_TRAP_GENERIC_ID_ESP_PARSING,
 928         DEVLINK_TRAP_GENERIC_ID_BLACKHOLE_NEXTHOP,
 929         DEVLINK_TRAP_GENERIC_ID_DMAC_FILTER,
 930         DEVLINK_TRAP_GENERIC_ID_EAPOL,
 931         DEVLINK_TRAP_GENERIC_ID_LOCKED_PORT,
 932
 933         /* Add new generic trap IDs above */
 934         __DEVLINK_TRAP_GENERIC_ID_MAX,
 935         DEVLINK_TRAP_GENERIC_ID_MAX = __DEVLINK_TRAP_GENERIC_ID_MAX - 1,
 936 };
 937
 938 /* All trap groups must be documented in
 939  * Documentation/networking/devlink/devlink-trap.rst
 940  */
 941 enum devlink_trap_group_generic_id {
 942         DEVLINK_TRAP_GROUP_GENERIC_ID_L2_DROPS,
 943         DEVLINK_TRAP_GROUP_GENERIC_ID_L3_DROPS,
 944         DEVLINK_TRAP_GROUP_GENERIC_ID_L3_EXCEPTIONS,
 945         DEVLINK_TRAP_GROUP_GENERIC_ID_BUFFER_DROPS,
 946         DEVLINK_TRAP_GROUP_GENERIC_ID_TUNNEL_DROPS,
 947         DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_DROPS,
 948         DEVLINK_TRAP_GROUP_GENERIC_ID_STP,
 949         DEVLINK_TRAP_GROUP_GENERIC_ID_LACP,
 950         DEVLINK_TRAP_GROUP_GENERIC_ID_LLDP,
 951         DEVLINK_TRAP_GROUP_GENERIC_ID_MC_SNOOPING,
 952         DEVLINK_TRAP_GROUP_GENERIC_ID_DHCP,
 953         DEVLINK_TRAP_GROUP_GENERIC_ID_NEIGH_DISCOVERY,
 954         DEVLINK_TRAP_GROUP_GENERIC_ID_BFD,
 955         DEVLINK_TRAP_GROUP_GENERIC_ID_OSPF,
 956         DEVLINK_TRAP_GROUP_GENERIC_ID_BGP,
 957         DEVLINK_TRAP_GROUP_GENERIC_ID_VRRP,
 958         DEVLINK_TRAP_GROUP_GENERIC_ID_PIM,
 959         DEVLINK_TRAP_GROUP_GENERIC_ID_UC_LB,
 960         DEVLINK_TRAP_GROUP_GENERIC_ID_LOCAL_DELIVERY,
 961         DEVLINK_TRAP_GROUP_GENERIC_ID_EXTERNAL_DELIVERY,
 962         DEVLINK_TRAP_GROUP_GENERIC_ID_IPV6,
 963         DEVLINK_TRAP_GROUP_GENERIC_ID_PTP_EVENT,
 964         DEVLINK_TRAP_GROUP_GENERIC_ID_PTP_GENERAL,
 965         DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_SAMPLE,
 966         DEVLINK_TRAP_GROUP_GENERIC_ID_ACL_TRAP,
 967         DEVLINK_TRAP_GROUP_GENERIC_ID_PARSER_ERROR_DROPS,
 968         DEVLINK_TRAP_GROUP_GENERIC_ID_EAPOL,
 969
 970         /* Add new generic trap group IDs above */
 971         __DEVLINK_TRAP_GROUP_GENERIC_ID_MAX,
 972         DEVLINK_TRAP_GROUP_GENERIC_ID_MAX =
 973                 __DEVLINK_TRAP_GROUP_GENERIC_ID_MAX - 1,
 974 };
 975
 976 #define DEVLINK_TRAP_GENERIC_NAME_SMAC_MC \
 977         "source_mac_is_multicast"
 978 #define DEVLINK_TRAP_GENERIC_NAME_VLAN_TAG_MISMATCH \
 979         "vlan_tag_mismatch"
 980 #define DEVLINK_TRAP_GENERIC_NAME_INGRESS_VLAN_FILTER \
 981         "ingress_vlan_filter"
 982 #define DEVLINK_TRAP_GENERIC_NAME_INGRESS_STP_FILTER \
 983         "ingress_spanning_tree_filter"
 984 #define DEVLINK_TRAP_GENERIC_NAME_EMPTY_TX_LIST \
 985         "port_list_is_empty"
 986 #define DEVLINK_TRAP_GENERIC_NAME_PORT_LOOPBACK_FILTER \
 987         "port_loopback_filter"
 988 #define DEVLINK_TRAP_GENERIC_NAME_BLACKHOLE_ROUTE \
 989         "blackhole_route"
 990 #define DEVLINK_TRAP_GENERIC_NAME_TTL_ERROR \
 991         "ttl_value_is_too_small"
 992 #define DEVLINK_TRAP_GENERIC_NAME_TAIL_DROP \
 993         "tail_drop"
 994 #define DEVLINK_TRAP_GENERIC_NAME_NON_IP_PACKET \
 995         "non_ip"
 996 #define DEVLINK_TRAP_GENERIC_NAME_UC_DIP_MC_DMAC \
 997         "uc_dip_over_mc_dmac"
 998 #define DEVLINK_TRAP_GENERIC_NAME_DIP_LB \
 999         "dip_is_loopback_address"
1000 #define DEVLINK_TRAP_GENERIC_NAME_SIP_MC \
1001         "sip_is_mc"
1002 #define DEVLINK_TRAP_GENERIC_NAME_SIP_LB \
1003         "sip_is_loopback_address"
1004 #define DEVLINK_TRAP_GENERIC_NAME_CORRUPTED_IP_HDR \
1005         "ip_header_corrupted"
1006 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_SIP_BC \
1007         "ipv4_sip_is_limited_bc"
1008 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_MC_DIP_RESERVED_SCOPE \
1009         "ipv6_mc_dip_reserved_scope"
1010 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_MC_DIP_INTERFACE_LOCAL_SCOPE \
1011         "ipv6_mc_dip_interface_local_scope"
1012 #define DEVLINK_TRAP_GENERIC_NAME_MTU_ERROR \
1013         "mtu_value_is_too_small"
1014 #define DEVLINK_TRAP_GENERIC_NAME_UNRESOLVED_NEIGH \
1015         "unresolved_neigh"
1016 #define DEVLINK_TRAP_GENERIC_NAME_RPF \
1017         "mc_reverse_path_forwarding"
1018 #define DEVLINK_TRAP_GENERIC_NAME_REJECT_ROUTE \
1019         "reject_route"
1020 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_LPM_UNICAST_MISS \
1021         "ipv4_lpm_miss"
1022 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_LPM_UNICAST_MISS \
1023         "ipv6_lpm_miss"
1024 #define DEVLINK_TRAP_GENERIC_NAME_NON_ROUTABLE \
1025         "non_routable_packet"
1026 #define DEVLINK_TRAP_GENERIC_NAME_DECAP_ERROR \
1027         "decap_error"
1028 #define DEVLINK_TRAP_GENERIC_NAME_OVERLAY_SMAC_MC \
1029         "overlay_smac_is_mc"
1030 #define DEVLINK_TRAP_GENERIC_NAME_INGRESS_FLOW_ACTION_DROP \
1031         "ingress_flow_action_drop"
1032 #define DEVLINK_TRAP_GENERIC_NAME_EGRESS_FLOW_ACTION_DROP \
1033         "egress_flow_action_drop"
1034 #define DEVLINK_TRAP_GENERIC_NAME_STP \
1035         "stp"
1036 #define DEVLINK_TRAP_GENERIC_NAME_LACP \
1037         "lacp"
1038 #define DEVLINK_TRAP_GENERIC_NAME_LLDP \
1039         "lldp"
1040 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_QUERY \
1041         "igmp_query"
1042 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V1_REPORT \
1043         "igmp_v1_report"
1044 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V2_REPORT \
1045         "igmp_v2_report"
1046 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V3_REPORT \
1047         "igmp_v3_report"
1048 #define DEVLINK_TRAP_GENERIC_NAME_IGMP_V2_LEAVE \
1049         "igmp_v2_leave"
1050 #define DEVLINK_TRAP_GENERIC_NAME_MLD_QUERY \
1051         "mld_query"
1052 #define DEVLINK_TRAP_GENERIC_NAME_MLD_V1_REPORT \
1053         "mld_v1_report"
1054 #define DEVLINK_TRAP_GENERIC_NAME_MLD_V2_REPORT \
1055         "mld_v2_report"
1056 #define DEVLINK_TRAP_GENERIC_NAME_MLD_V1_DONE \
1057         "mld_v1_done"
1058 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_DHCP \
1059         "ipv4_dhcp"
1060 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_DHCP \
1061         "ipv6_dhcp"
1062 #define DEVLINK_TRAP_GENERIC_NAME_ARP_REQUEST \
1063         "arp_request"
1064 #define DEVLINK_TRAP_GENERIC_NAME_ARP_RESPONSE \
1065         "arp_response"
1066 #define DEVLINK_TRAP_GENERIC_NAME_ARP_OVERLAY \
1067         "arp_overlay"
1068 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_NEIGH_SOLICIT \
1069         "ipv6_neigh_solicit"
1070 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_NEIGH_ADVERT \
1071         "ipv6_neigh_advert"
1072 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_BFD \
1073         "ipv4_bfd"
1074 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_BFD \
1075         "ipv6_bfd"
1076 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_OSPF \
1077         "ipv4_ospf"
1078 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_OSPF \
1079         "ipv6_ospf"
1080 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_BGP \
1081         "ipv4_bgp"
1082 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_BGP \
1083         "ipv6_bgp"
1084 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_VRRP \
1085         "ipv4_vrrp"
1086 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_VRRP \
1087         "ipv6_vrrp"
1088 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_PIM \
1089         "ipv4_pim"
1090 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_PIM \
1091         "ipv6_pim"
1092 #define DEVLINK_TRAP_GENERIC_NAME_UC_LB \
1093         "uc_loopback"
1094 #define DEVLINK_TRAP_GENERIC_NAME_LOCAL_ROUTE \
1095         "local_route"
1096 #define DEVLINK_TRAP_GENERIC_NAME_EXTERNAL_ROUTE \
1097         "external_route"
1098 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_UC_DIP_LINK_LOCAL_SCOPE \
1099         "ipv6_uc_dip_link_local_scope"
1100 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_DIP_ALL_NODES \
1101         "ipv6_dip_all_nodes"
1102 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_DIP_ALL_ROUTERS \
1103         "ipv6_dip_all_routers"
1104 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_SOLICIT \
1105         "ipv6_router_solicit"
1106 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_ADVERT \
1107         "ipv6_router_advert"
1108 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_REDIRECT \
1109         "ipv6_redirect"
1110 #define DEVLINK_TRAP_GENERIC_NAME_IPV4_ROUTER_ALERT \
1111         "ipv4_router_alert"
1112 #define DEVLINK_TRAP_GENERIC_NAME_IPV6_ROUTER_ALERT \
1113         "ipv6_router_alert"
1114 #define DEVLINK_TRAP_GENERIC_NAME_PTP_EVENT \
1115         "ptp_event"
1116 #define DEVLINK_TRAP_GENERIC_NAME_PTP_GENERAL \
1117         "ptp_general"
1118 #define DEVLINK_TRAP_GENERIC_NAME_FLOW_ACTION_SAMPLE \
1119         "flow_action_sample"
1120 #define DEVLINK_TRAP_GENERIC_NAME_FLOW_ACTION_TRAP \
1121         "flow_action_trap"
1122 #define DEVLINK_TRAP_GENERIC_NAME_EARLY_DROP \
1123         "early_drop"
1124 #define DEVLINK_TRAP_GENERIC_NAME_VXLAN_PARSING \
1125         "vxlan_parsing"
1126 #define DEVLINK_TRAP_GENERIC_NAME_LLC_SNAP_PARSING \
1127         "llc_snap_parsing"
1128 #define DEVLINK_TRAP_GENERIC_NAME_VLAN_PARSING \
1129         "vlan_parsing"
1130 #define DEVLINK_TRAP_GENERIC_NAME_PPPOE_PPP_PARSING \
1131         "pppoe_ppp_parsing"
1132 #define DEVLINK_TRAP_GENERIC_NAME_MPLS_PARSING \
1133         "mpls_parsing"
1134 #define DEVLINK_TRAP_GENERIC_NAME_ARP_PARSING \
1135         "arp_parsing"
1136 #define DEVLINK_TRAP_GENERIC_NAME_IP_1_PARSING \
1137         "ip_1_parsing"
1138 #define DEVLINK_TRAP_GENERIC_NAME_IP_N_PARSING \
1139         "ip_n_parsing"
1140 #define DEVLINK_TRAP_GENERIC_NAME_GRE_PARSING \
1141         "gre_parsing"
1142 #define DEVLINK_TRAP_GENERIC_NAME_UDP_PARSING \
1143         "udp_parsing"
1144 #define DEVLINK_TRAP_GENERIC_NAME_TCP_PARSING \
1145         "tcp_parsing"
1146 #define DEVLINK_TRAP_GENERIC_NAME_IPSEC_PARSING \
1147         "ipsec_parsing"
1148 #define DEVLINK_TRAP_GENERIC_NAME_SCTP_PARSING \
1149         "sctp_parsing"
1150 #define DEVLINK_TRAP_GENERIC_NAME_DCCP_PARSING \
1151         "dccp_parsing"
1152 #define DEVLINK_TRAP_GENERIC_NAME_GTP_PARSING \
1153         "gtp_parsing"
1154 #define DEVLINK_TRAP_GENERIC_NAME_ESP_PARSING \
1155         "esp_parsing"
1156 #define DEVLINK_TRAP_GENERIC_NAME_BLACKHOLE_NEXTHOP \
1157         "blackhole_nexthop"
1158 #define DEVLINK_TRAP_GENERIC_NAME_DMAC_FILTER \
1159         "dmac_filter"
1160 #define DEVLINK_TRAP_GENERIC_NAME_EAPOL \
1161         "eapol"
1162 #define DEVLINK_TRAP_GENERIC_NAME_LOCKED_PORT \
1163         "locked_port"
1164
1165 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L2_DROPS \
1166         "l2_drops"
1167 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_DROPS \
1168         "l3_drops"
1169 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_L3_EXCEPTIONS \
1170         "l3_exceptions"
1171 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_BUFFER_DROPS \
1172         "buffer_drops"
1173 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_TUNNEL_DROPS \
1174         "tunnel_drops"
1175 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_DROPS \
1176         "acl_drops"
1177 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_STP \
1178         "stp"
1179 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_LACP \
1180         "lacp"
1181 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_LLDP \
1182         "lldp"
1183 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_MC_SNOOPING  \
1184         "mc_snooping"
1185 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_DHCP \
1186         "dhcp"
1187 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_NEIGH_DISCOVERY \
1188         "neigh_discovery"
1189 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_BFD \
1190         "bfd"
1191 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_OSPF \
1192         "ospf"
1193 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_BGP \
1194         "bgp"
1195 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_VRRP \
1196         "vrrp"
1197 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PIM \
1198         "pim"
1199 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_UC_LB \
1200         "uc_loopback"
1201 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_LOCAL_DELIVERY \
1202         "local_delivery"
1203 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_EXTERNAL_DELIVERY \
1204         "external_delivery"
1205 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_IPV6 \
1206         "ipv6"
1207 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PTP_EVENT \
1208         "ptp_event"
1209 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PTP_GENERAL \
1210         "ptp_general"
1211 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_SAMPLE \
1212         "acl_sample"
1213 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_ACL_TRAP \
1214         "acl_trap"
1215 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_PARSER_ERROR_DROPS \
1216         "parser_error_drops"
1217 #define DEVLINK_TRAP_GROUP_GENERIC_NAME_EAPOL \
1218         "eapol"
1219
1220 #define DEVLINK_TRAP_GENERIC(_type, _init_action, _id, _group_id,             \
1221                              _metadata_cap)                                   \
1222         {                                                                     \
1223                 .type = DEVLINK_TRAP_TYPE_##_type,                            \
1224                 .init_action = DEVLINK_TRAP_ACTION_##_init_action,            \
1225                 .generic = true,                                              \
1226                 .id = DEVLINK_TRAP_GENERIC_ID_##_id,                          \
1227                 .name = DEVLINK_TRAP_GENERIC_NAME_##_id,                      \
1228                 .init_group_id = _group_id,                                   \
1229                 .metadata_cap = _metadata_cap,                                \
1230         }
1231
1232 #define DEVLINK_TRAP_DRIVER(_type, _init_action, _id, _name, _group_id,       \
1233                             _metadata_cap)                                    \
1234         {                                                                     \
1235                 .type = DEVLINK_TRAP_TYPE_##_type,                            \
1236                 .init_action = DEVLINK_TRAP_ACTION_##_init_action,            \
1237                 .generic = false,                                             \
1238                 .id = _id,                                                    \
1239                 .name = _name,                                                \
1240                 .init_group_id = _group_id,                                   \
1241                 .metadata_cap = _metadata_cap,                                \
1242         }
1243
1244 #define DEVLINK_TRAP_GROUP_GENERIC(_id, _policer_id)                          \
1245         {                                                                     \
1246                 .name = DEVLINK_TRAP_GROUP_GENERIC_NAME_##_id,                \
1247                 .id = DEVLINK_TRAP_GROUP_GENERIC_ID_##_id,                    \
1248                 .generic = true,                                              \
1249                 .init_policer_id = _policer_id,                               \
1250         }
1251
1252 #define DEVLINK_TRAP_POLICER(_id, _rate, _burst, _max_rate, _min_rate,        \
1253                              _max_burst, _min_burst)                          \
1254         {                                                                     \
1255                 .id = _id,                                                    \
1256                 .init_rate = _rate,                                           \
1257                 .init_burst = _burst,                                         \
1258                 .max_rate = _max_rate,                                        \
1259                 .min_rate = _min_rate,                                        \
1260                 .max_burst = _max_burst,                                      \
1261                 .min_burst = _min_burst,                                      \
1262         }
1263
1264 enum {
1265         /* device supports reload operations */
1266         DEVLINK_F_RELOAD = 1UL << 0,
1267 };
1268
1269 struct devlink_ops {
1270         /**
1271          * @supported_flash_update_params:
1272          * mask of parameters supported by the driver's .flash_update
1273          * implementation.
1274          */
1275         u32 supported_flash_update_params;
1276         unsigned long reload_actions;
1277         unsigned long reload_limits;
1278         int (*reload_down)(struct devlink *devlink, bool netns_change,
1279                            enum devlink_reload_action action,
1280                            enum devlink_reload_limit limit,
1281                            struct netlink_ext_ack *extack);
1282         int (*reload_up)(struct devlink *devlink, enum devlink_reload_action action,
1283                          enum devlink_reload_limit limit, u32 *actions_performed,
1284                          struct netlink_ext_ack *extack);
1285         int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index,
1286                            u16 pool_index,
1287                            struct devlink_sb_pool_info *pool_info);
1288         int (*sb_pool_set)(struct devlink *devlink, unsigned int sb_index,
1289                            u16 pool_index, u32 size,
1290                            enum devlink_sb_threshold_type threshold_type,
1291                            struct netlink_ext_ack *extack);
1292         int (*sb_port_pool_get)(struct devlink_port *devlink_port,
1293                                 unsigned int sb_index, u16 pool_index,
1294                                 u32 *p_threshold);
1295         int (*sb_port_pool_set)(struct devlink_port *devlink_port,
1296                                 unsigned int sb_index, u16 pool_index,
1297                                 u32 threshold, struct netlink_ext_ack *extack);
1298         int (*sb_tc_pool_bind_get)(struct devlink_port *devlink_port,
1299                                    unsigned int sb_index,
1300                                    u16 tc_index,
1301                                    enum devlink_sb_pool_type pool_type,
1302                                    u16 *p_pool_index, u32 *p_threshold);
1303         int (*sb_tc_pool_bind_set)(struct devlink_port *devlink_port,
1304                                    unsigned int sb_index,
1305                                    u16 tc_index,
1306                                    enum devlink_sb_pool_type pool_type,
1307                                    u16 pool_index, u32 threshold,
1308                                    struct netlink_ext_ack *extack);
1309         int (*sb_occ_snapshot)(struct devlink *devlink,
1310                                unsigned int sb_index);
1311         int (*sb_occ_max_clear)(struct devlink *devlink,
1312                                 unsigned int sb_index);
1313         int (*sb_occ_port_pool_get)(struct devlink_port *devlink_port,
1314                                     unsigned int sb_index, u16 pool_index,
1315                                     u32 *p_cur, u32 *p_max);
1316         int (*sb_occ_tc_port_bind_get)(struct devlink_port *devlink_port,
1317                                        unsigned int sb_index,
1318                                        u16 tc_index,
1319                                        enum devlink_sb_pool_type pool_type,
1320                                        u32 *p_cur, u32 *p_max);
1321
1322         int (*eswitch_mode_get)(struct devlink *devlink, u16 *p_mode);
1323         int (*eswitch_mode_set)(struct devlink *devlink, u16 mode,
1324                                 struct netlink_ext_ack *extack);
1325         int (*eswitch_inline_mode_get)(struct devlink *devlink, u8 *p_inline_mode);
1326         int (*eswitch_inline_mode_set)(struct devlink *devlink, u8 inline_mode,
1327                                        struct netlink_ext_ack *extack);
1328         int (*eswitch_encap_mode_get)(struct devlink *devlink,
1329                                       enum devlink_eswitch_encap_mode *p_encap_mode);
1330         int (*eswitch_encap_mode_set)(struct devlink *devlink,
1331                                       enum devlink_eswitch_encap_mode encap_mode,
1332                                       struct netlink_ext_ack *extack);
1333         int (*info_get)(struct devlink *devlink, struct devlink_info_req *req,
1334                         struct netlink_ext_ack *extack);
1335         /**
1336          * @flash_update: Device flash update function
1337          *
1338          * Used to perform a flash update for the device. The set of
1339          * parameters supported by the driver should be set in
1340          * supported_flash_update_params.
1341          */
1342         int (*flash_update)(struct devlink *devlink,
1343                             struct devlink_flash_update_params *params,
1344                             struct netlink_ext_ack *extack);
1345         /**
1346          * @trap_init: Trap initialization function.
1347          *
1348          * Should be used by device drivers to initialize the trap in the
1349          * underlying device. Drivers should also store the provided trap
1350          * context, so that they could efficiently pass it to
1351          * devlink_trap_report() when the trap is triggered.
1352          */
1353         int (*trap_init)(struct devlink *devlink,
1354                          const struct devlink_trap *trap, void *trap_ctx);
1355         /**
1356          * @trap_fini: Trap de-initialization function.
1357          *
1358          * Should be used by device drivers to de-initialize the trap in the
1359          * underlying device.
1360          */
1361         void (*trap_fini)(struct devlink *devlink,
1362                           const struct devlink_trap *trap, void *trap_ctx);
1363         /**
1364          * @trap_action_set: Trap action set function.
1365          */
1366         int (*trap_action_set)(struct devlink *devlink,
1367                                const struct devlink_trap *trap,
1368                                enum devlink_trap_action action,
1369                                struct netlink_ext_ack *extack);
1370         /**
1371          * @trap_group_init: Trap group initialization function.
1372          *
1373          * Should be used by device drivers to initialize the trap group in the
1374          * underlying device.
1375          */
1376         int (*trap_group_init)(struct devlink *devlink,
1377                                const struct devlink_trap_group *group);
1378         /**
1379          * @trap_group_set: Trap group parameters set function.
1380          *
1381          * Note: @policer can be NULL when a policer is being unbound from
1382          * @group.
1383          */
1384         int (*trap_group_set)(struct devlink *devlink,
1385                               const struct devlink_trap_group *group,
1386                               const struct devlink_trap_policer *policer,
1387                               struct netlink_ext_ack *extack);
1388         /**
1389          * @trap_group_action_set: Trap group action set function.
1390          *
1391          * If this callback is populated, it will take precedence over looping
1392          * over all traps in a group and calling .trap_action_set().
1393          */
1394         int (*trap_group_action_set)(struct devlink *devlink,
1395                                      const struct devlink_trap_group *group,
1396                                      enum devlink_trap_action action,
1397                                      struct netlink_ext_ack *extack);
1398         /**
1399          * @trap_drop_counter_get: Trap drop counter get function.
1400          *
1401          * Should be used by device drivers to report number of packets
1402          * that have been dropped, and cannot be passed to the devlink
1403          * subsystem by the underlying device.
1404          */
1405         int (*trap_drop_counter_get)(struct devlink *devlink,
1406                                      const struct devlink_trap *trap,
1407                                      u64 *p_drops);
1408         /**
1409          * @trap_policer_init: Trap policer initialization function.
1410          *
1411          * Should be used by device drivers to initialize the trap policer in
1412          * the underlying device.
1413          */
1414         int (*trap_policer_init)(struct devlink *devlink,
1415                                  const struct devlink_trap_policer *policer);
1416         /**
1417          * @trap_policer_fini: Trap policer de-initialization function.
1418          *
1419          * Should be used by device drivers to de-initialize the trap policer
1420          * in the underlying device.
1421          */
1422         void (*trap_policer_fini)(struct devlink *devlink,
1423                                   const struct devlink_trap_policer *policer);
1424         /**
1425          * @trap_policer_set: Trap policer parameters set function.
1426          */
1427         int (*trap_policer_set)(struct devlink *devlink,
1428                                 const struct devlink_trap_policer *policer,
1429                                 u64 rate, u64 burst,
1430                                 struct netlink_ext_ack *extack);
1431         /**
1432          * @trap_policer_counter_get: Trap policer counter get function.
1433          *
1434          * Should be used by device drivers to report number of packets dropped
1435          * by the policer.
1436          */
1437         int (*trap_policer_counter_get)(struct devlink *devlink,
1438                                         const struct devlink_trap_policer *policer,
1439                                         u64 *p_drops);
1440         /**
1441          * port_new() - Add a new port function of a specified flavor
1442          * @devlink: Devlink instance
1443          * @attrs: attributes of the new port
1444          * @extack: extack for reporting error messages
1445          * @devlink_port: pointer to store new devlink port pointer
1446          *
1447          * Devlink core will call this device driver function upon user request
1448          * to create a new port function of a specified flavor and optional
1449          * attributes
1450          *
1451          * Notes:
1452          *      - On success, drivers must register a port with devlink core
1453          *
1454          * Return: 0 on success, negative value otherwise.
1455          */
1456         int (*port_new)(struct devlink *devlink,
1457                         const struct devlink_port_new_attrs *attrs,
1458                         struct netlink_ext_ack *extack,
1459                         struct devlink_port **devlink_port);
1460
1461         /**
1462          * Rate control callbacks.
1463          */
1464         int (*rate_leaf_tx_share_set)(struct devlink_rate *devlink_rate, void *priv,
1465                                       u64 tx_share, struct netlink_ext_ack *extack);
1466         int (*rate_leaf_tx_max_set)(struct devlink_rate *devlink_rate, void *priv,
1467                                     u64 tx_max, struct netlink_ext_ack *extack);
1468         int (*rate_leaf_tx_priority_set)(struct devlink_rate *devlink_rate, void *priv,
1469                                          u32 tx_priority, struct netlink_ext_ack *extack);
1470         int (*rate_leaf_tx_weight_set)(struct devlink_rate *devlink_rate, void *priv,
1471                                        u32 tx_weight, struct netlink_ext_ack *extack);
1472         int (*rate_node_tx_share_set)(struct devlink_rate *devlink_rate, void *priv,
1473                                       u64 tx_share, struct netlink_ext_ack *extack);
1474         int (*rate_node_tx_max_set)(struct devlink_rate *devlink_rate, void *priv,
1475                                     u64 tx_max, struct netlink_ext_ack *extack);
1476         int (*rate_node_tx_priority_set)(struct devlink_rate *devlink_rate, void *priv,
1477                                          u32 tx_priority, struct netlink_ext_ack *extack);
1478         int (*rate_node_tx_weight_set)(struct devlink_rate *devlink_rate, void *priv,
1479                                        u32 tx_weight, struct netlink_ext_ack *extack);
1480         int (*rate_node_new)(struct devlink_rate *rate_node, void **priv,
1481                              struct netlink_ext_ack *extack);
1482         int (*rate_node_del)(struct devlink_rate *rate_node, void *priv,
1483                              struct netlink_ext_ack *extack);
1484         int (*rate_leaf_parent_set)(struct devlink_rate *child,
1485                                     struct devlink_rate *parent,
1486                                     void *priv_child, void *priv_parent,
1487                                     struct netlink_ext_ack *extack);
1488         int (*rate_node_parent_set)(struct devlink_rate *child,
1489                                     struct devlink_rate *parent,
1490                                     void *priv_child, void *priv_parent,
1491                                     struct netlink_ext_ack *extack);
1492         /**
1493          * selftests_check() - queries if selftest is supported
1494          * @devlink: devlink instance
1495          * @id: test index
1496          * @extack: extack for reporting error messages
1497          *
1498          * Return: true if test is supported by the driver
1499          */
1500         bool (*selftest_check)(struct devlink *devlink, unsigned int id,
1501                                struct netlink_ext_ack *extack);
1502         /**
1503          * selftest_run() - Runs a selftest
1504          * @devlink: devlink instance
1505          * @id: test index
1506          * @extack: extack for reporting error messages
1507          *
1508          * Return: status of the test
1509          */
1510         enum devlink_selftest_status
1511         (*selftest_run)(struct devlink *devlink, unsigned int id,
1512                         struct netlink_ext_ack *extack);
1513 };
1514
1515 void *devlink_priv(struct devlink *devlink);
1516 struct devlink *priv_to_devlink(void *priv);
1517 struct device *devlink_to_dev(const struct devlink *devlink);
1518
1519 /* Devlink instance explicit locking */
1520 void devl_lock(struct devlink *devlink);
1521 int devl_trylock(struct devlink *devlink);
1522 void devl_unlock(struct devlink *devlink);
1523 void devl_assert_locked(struct devlink *devlink);
1524 bool devl_lock_is_held(struct devlink *devlink);
1525
1526 struct ib_device;
1527
1528 struct net *devlink_net(const struct devlink *devlink);
1529 /* This call is intended for software devices that can create
1530  * devlink instances in other namespaces than init_net.
1531  *
1532  * Drivers that operate on real HW must use devlink_alloc() instead.
1533  */
1534 struct devlink *devlink_alloc_ns(const struct devlink_ops *ops,
1535                                  size_t priv_size, struct net *net,
1536                                  struct device *dev);
1537 static inline struct devlink *devlink_alloc(const struct devlink_ops *ops,
1538                                             size_t priv_size,
1539                                             struct device *dev)
1540 {
1541         return devlink_alloc_ns(ops, priv_size, &init_net, dev);
1542 }
1543
1544 int devl_register(struct devlink *devlink);
1545 void devl_unregister(struct devlink *devlink);
1546 void devlink_register(struct devlink *devlink);
1547 void devlink_unregister(struct devlink *devlink);
1548 void devlink_free(struct devlink *devlink);
1549
1550 /**
1551  * struct devlink_port_ops - Port operations
1552  * @port_split: Callback used to split the port into multiple ones.
1553  * @port_unsplit: Callback used to unsplit the port group back into
1554  *                a single port.
1555  * @port_type_set: Callback used to set a type of a port.
1556  * @port_del: Callback used to delete selected port along with related function.
1557  *            Devlink core calls this upon user request to delete
1558  *            a port previously created by devlink_ops->port_new().
1559  * @port_fn_hw_addr_get: Callback used to set port function's hardware address.
1560  *                       Should be used by device drivers to report
1561  *                       the hardware address of a function managed
1562  *                       by the devlink port.
1563  * @port_fn_hw_addr_set: Callback used to set port function's hardware address.
1564  *                       Should be used by device drivers to set the hardware
1565  *                       address of a function managed by the devlink port.
1566  * @port_fn_roce_get: Callback used to get port function's RoCE capability.
1567  *                    Should be used by device drivers to report
1568  *                    the current state of RoCE capability of a function
1569  *                    managed by the devlink port.
1570  * @port_fn_roce_set: Callback used to set port function's RoCE capability.
1571  *                    Should be used by device drivers to enable/disable
1572  *                    RoCE capability of a function managed
1573  *                    by the devlink port.
1574  * @port_fn_migratable_get: Callback used to get port function's migratable
1575  *                          capability. Should be used by device drivers
1576  *                          to report the current state of migratable capability
1577  *                          of a function managed by the devlink port.
1578  * @port_fn_migratable_set: Callback used to set port function's migratable
1579  *                          capability. Should be used by device drivers
1580  *                          to enable/disable migratable capability of
1581  *                          a function managed by the devlink port.
1582  * @port_fn_state_get: Callback used to get port function's state.
1583  *                     Should be used by device drivers to report
1584  *                     the current admin and operational state of a
1585  *                     function managed by the devlink port.
1586  * @port_fn_state_set: Callback used to get port function's state.
1587  *                     Should be used by device drivers set
1588  *                     the admin state of a function managed
1589  *                     by the devlink port.
1590  * @port_fn_ipsec_crypto_get: Callback used to get port function's ipsec_crypto
1591  *                            capability. Should be used by device drivers
1592  *                            to report the current state of ipsec_crypto
1593  *                            capability of a function managed by the devlink
1594  *                            port.
1595  * @port_fn_ipsec_crypto_set: Callback used to set port function's ipsec_crypto
1596  *                            capability. Should be used by device drivers to
1597  *                            enable/disable ipsec_crypto capability of a
1598  *                            function managed by the devlink port.
1599  * @port_fn_ipsec_packet_get: Callback used to get port function's ipsec_packet
1600  *                            capability. Should be used by device drivers
1601  *                            to report the current state of ipsec_packet
1602  *                            capability of a function managed by the devlink
1603  *                            port.
1604  * @port_fn_ipsec_packet_set: Callback used to set port function's ipsec_packet
1605  *                            capability. Should be used by device drivers to
1606  *                            enable/disable ipsec_packet capability of a
1607  *                            function managed by the devlink port.
1608  * @port_fn_max_io_eqs_get: Callback used to get port function's maximum number
1609  *                          of event queues. Should be used by device drivers to
1610  *                          report the maximum event queues of a function
1611  *                          managed by the devlink port.
1612  * @port_fn_max_io_eqs_set: Callback used to set port function's maximum number
1613  *                          of event queues. Should be used by device drivers to
1614  *                          configure maximum number of event queues
1615  *                          of a function managed by the devlink port.
1616  *
1617  * Note: Driver should return -EOPNOTSUPP if it doesn't support
1618  * port function (@port_fn_*) handling for a particular port.
1619  */
1620 struct devlink_port_ops {
1621         int (*port_split)(struct devlink *devlink, struct devlink_port *port,
1622                           unsigned int count, struct netlink_ext_ack *extack);
1623         int (*port_unsplit)(struct devlink *devlink, struct devlink_port *port,
1624                             struct netlink_ext_ack *extack);
1625         int (*port_type_set)(struct devlink_port *devlink_port,
1626                              enum devlink_port_type port_type);
1627         int (*port_del)(struct devlink *devlink, struct devlink_port *port,
1628                         struct netlink_ext_ack *extack);
1629         int (*port_fn_hw_addr_get)(struct devlink_port *port, u8 *hw_addr,
1630                                    int *hw_addr_len,
1631                                    struct netlink_ext_ack *extack);
1632         int (*port_fn_hw_addr_set)(struct devlink_port *port,
1633                                    const u8 *hw_addr, int hw_addr_len,
1634                                    struct netlink_ext_ack *extack);
1635         int (*port_fn_roce_get)(struct devlink_port *devlink_port,
1636                                 bool *is_enable,
1637                                 struct netlink_ext_ack *extack);
1638         int (*port_fn_roce_set)(struct devlink_port *devlink_port,
1639                                 bool enable, struct netlink_ext_ack *extack);
1640         int (*port_fn_migratable_get)(struct devlink_port *devlink_port,
1641                                       bool *is_enable,
1642                                       struct netlink_ext_ack *extack);
1643         int (*port_fn_migratable_set)(struct devlink_port *devlink_port,
1644                                       bool enable,
1645                                       struct netlink_ext_ack *extack);
1646         int (*port_fn_state_get)(struct devlink_port *port,
1647                                  enum devlink_port_fn_state *state,
1648                                  enum devlink_port_fn_opstate *opstate,
1649                                  struct netlink_ext_ack *extack);
1650         int (*port_fn_state_set)(struct devlink_port *port,
1651                                  enum devlink_port_fn_state state,
1652                                  struct netlink_ext_ack *extack);
1653         int (*port_fn_ipsec_crypto_get)(struct devlink_port *devlink_port,
1654                                         bool *is_enable,
1655                                         struct netlink_ext_ack *extack);
1656         int (*port_fn_ipsec_crypto_set)(struct devlink_port *devlink_port,
1657                                         bool enable,
1658                                         struct netlink_ext_ack *extack);
1659         int (*port_fn_ipsec_packet_get)(struct devlink_port *devlink_port,
1660                                         bool *is_enable,
1661                                         struct netlink_ext_ack *extack);
1662         int (*port_fn_ipsec_packet_set)(struct devlink_port *devlink_port,
1663                                         bool enable,
1664                                         struct netlink_ext_ack *extack);
1665         int (*port_fn_max_io_eqs_get)(struct devlink_port *devlink_port,
1666                                       u32 *max_eqs,
1667                                       struct netlink_ext_ack *extack);
1668         int (*port_fn_max_io_eqs_set)(struct devlink_port *devlink_port,
1669                                       u32 max_eqs,
1670                                       struct netlink_ext_ack *extack);
1671 };
1672
1673 void devlink_port_init(struct devlink *devlink,
1674                        struct devlink_port *devlink_port);
1675 void devlink_port_fini(struct devlink_port *devlink_port);
1676
1677 int devl_port_register_with_ops(struct devlink *devlink,
1678                                 struct devlink_port *devlink_port,
1679                                 unsigned int port_index,
1680                                 const struct devlink_port_ops *ops);
1681
1682 static inline int devl_port_register(struct devlink *devlink,
1683                                      struct devlink_port *devlink_port,
1684                                      unsigned int port_index)
1685 {
1686         return devl_port_register_with_ops(devlink, devlink_port,
1687                                            port_index, NULL);
1688 }
1689
1690 int devlink_port_register_with_ops(struct devlink *devlink,
1691                                    struct devlink_port *devlink_port,
1692                                    unsigned int port_index,
1693                                    const struct devlink_port_ops *ops);
1694
1695 static inline int devlink_port_register(struct devlink *devlink,
1696                                         struct devlink_port *devlink_port,
1697                                         unsigned int port_index)
1698 {
1699         return devlink_port_register_with_ops(devlink, devlink_port,
1700                                               port_index, NULL);
1701 }
1702
1703 void devl_port_unregister(struct devlink_port *devlink_port);
1704 void devlink_port_unregister(struct devlink_port *devlink_port);
1705 void devlink_port_type_eth_set(struct devlink_port *devlink_port);
1706 void devlink_port_type_ib_set(struct devlink_port *devlink_port,
1707                               struct ib_device *ibdev);
1708 void devlink_port_type_clear(struct devlink_port *devlink_port);
1709 void devlink_port_attrs_set(struct devlink_port *devlink_port,
1710                             struct devlink_port_attrs *devlink_port_attrs);
1711 void devlink_port_attrs_pci_pf_set(struct devlink_port *devlink_port, u32 controller,
1712                                    u16 pf, bool external);
1713 void devlink_port_attrs_pci_vf_set(struct devlink_port *devlink_port, u32 controller,
1714                                    u16 pf, u16 vf, bool external);
1715 void devlink_port_attrs_pci_sf_set(struct devlink_port *devlink_port,
1716                                    u32 controller, u16 pf, u32 sf,
1717                                    bool external);
1718 int devl_port_fn_devlink_set(struct devlink_port *devlink_port,
1719                              struct devlink *fn_devlink);
1720 struct devlink_rate *
1721 devl_rate_node_create(struct devlink *devlink, void *priv, char *node_name,
1722                       struct devlink_rate *parent);
1723 int
1724 devl_rate_leaf_create(struct devlink_port *devlink_port, void *priv,
1725                       struct devlink_rate *parent);
1726 void devl_rate_leaf_destroy(struct devlink_port *devlink_port);
1727 void devl_rate_nodes_destroy(struct devlink *devlink);
1728 void devlink_port_linecard_set(struct devlink_port *devlink_port,
1729                                struct devlink_linecard *linecard);
1730 struct devlink_linecard *
1731 devl_linecard_create(struct devlink *devlink, unsigned int linecard_index,
1732                      const struct devlink_linecard_ops *ops, void *priv);
1733 void devl_linecard_destroy(struct devlink_linecard *linecard);
1734 void devlink_linecard_provision_set(struct devlink_linecard *linecard,
1735                                     const char *type);
1736 void devlink_linecard_provision_clear(struct devlink_linecard *linecard);
1737 void devlink_linecard_provision_fail(struct devlink_linecard *linecard);
1738 void devlink_linecard_activate(struct devlink_linecard *linecard);
1739 void devlink_linecard_deactivate(struct devlink_linecard *linecard);
1740 int devlink_linecard_nested_dl_set(struct devlink_linecard *linecard,
1741                                    struct devlink *nested_devlink);
1742 int devl_sb_register(struct devlink *devlink, unsigned int sb_index,
1743                      u32 size, u16 ingress_pools_count,
1744                      u16 egress_pools_count, u16 ingress_tc_count,
1745                      u16 egress_tc_count);
1746 int devlink_sb_register(struct devlink *devlink, unsigned int sb_index,
1747                         u32 size, u16 ingress_pools_count,
1748                         u16 egress_pools_count, u16 ingress_tc_count,
1749                         u16 egress_tc_count);
1750 void devl_sb_unregister(struct devlink *devlink, unsigned int sb_index);
1751 void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index);
1752 int devl_dpipe_table_register(struct devlink *devlink,
1753                               const char *table_name,
1754                               const struct devlink_dpipe_table_ops *table_ops,
1755                               void *priv, bool counter_control_extern);
1756 void devl_dpipe_table_unregister(struct devlink *devlink,
1757                                  const char *table_name);
1758 void devl_dpipe_headers_register(struct devlink *devlink,
1759                                  struct devlink_dpipe_headers *dpipe_headers);
1760 void devl_dpipe_headers_unregister(struct devlink *devlink);
1761 bool devlink_dpipe_table_counter_enabled(struct devlink *devlink,
1762                                          const char *table_name);
1763 int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx);
1764 int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx,
1765                                    struct devlink_dpipe_entry *entry);
1766 int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx);
1767 void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry);
1768 int devlink_dpipe_action_put(struct sk_buff *skb,
1769                              struct devlink_dpipe_action *action);
1770 int devlink_dpipe_match_put(struct sk_buff *skb,
1771                             struct devlink_dpipe_match *match);
1772 extern struct devlink_dpipe_header devlink_dpipe_header_ethernet;
1773 extern struct devlink_dpipe_header devlink_dpipe_header_ipv4;
1774 extern struct devlink_dpipe_header devlink_dpipe_header_ipv6;
1775
1776 int devl_resource_register(struct devlink *devlink,
1777                            const char *resource_name,
1778                            u64 resource_size,
1779                            u64 resource_id,
1780                            u64 parent_resource_id,
1781                            const struct devlink_resource_size_params *size_params);
1782 void devl_resources_unregister(struct devlink *devlink);
1783 void devlink_resources_unregister(struct devlink *devlink);
1784 int devl_resource_size_get(struct devlink *devlink,
1785                            u64 resource_id,
1786                            u64 *p_resource_size);
1787 int devl_dpipe_table_resource_set(struct devlink *devlink,
1788                                   const char *table_name, u64 resource_id,
1789                                   u64 resource_units);
1790 void devl_resource_occ_get_register(struct devlink *devlink,
1791                                     u64 resource_id,
1792                                     devlink_resource_occ_get_t *occ_get,
1793                                     void *occ_get_priv);
1794 void devl_resource_occ_get_unregister(struct devlink *devlink,
1795                                       u64 resource_id);
1796 int devl_params_register(struct devlink *devlink,
1797                          const struct devlink_param *params,
1798                          size_t params_count);
1799 int devlink_params_register(struct devlink *devlink,
1800                             const struct devlink_param *params,
1801                             size_t params_count);
1802 void devl_params_unregister(struct devlink *devlink,
1803                             const struct devlink_param *params,
1804                             size_t params_count);
1805 void devlink_params_unregister(struct devlink *devlink,
1806                                const struct devlink_param *params,
1807                                size_t params_count);
1808 int devl_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
1809                                     union devlink_param_value *val);
1810 void devl_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
1811                                      union devlink_param_value init_val);
1812 void devl_param_value_changed(struct devlink *devlink, u32 param_id);
1813 struct devlink_region *devl_region_create(struct devlink *devlink,
1814                                           const struct devlink_region_ops *ops,
1815                                           u32 region_max_snapshots,
1816                                           u64 region_size);
1817 struct devlink_region *
1818 devlink_region_create(struct devlink *devlink,
1819                       const struct devlink_region_ops *ops,
1820                       u32 region_max_snapshots, u64 region_size);
1821 struct devlink_region *
1822 devlink_port_region_create(struct devlink_port *port,
1823                            const struct devlink_port_region_ops *ops,
1824                            u32 region_max_snapshots, u64 region_size);
1825 void devl_region_destroy(struct devlink_region *region);
1826 void devlink_region_destroy(struct devlink_region *region);
1827 int devlink_region_snapshot_id_get(struct devlink *devlink, u32 *id);
1828 void devlink_region_snapshot_id_put(struct devlink *devlink, u32 id);
1829 int devlink_region_snapshot_create(struct devlink_region *region,
1830                                    u8 *data, u32 snapshot_id);
1831 int devlink_info_serial_number_put(struct devlink_info_req *req,
1832                                    const char *sn);
1833 int devlink_info_board_serial_number_put(struct devlink_info_req *req,
1834                                          const char *bsn);
1835
1836 enum devlink_info_version_type {
1837         DEVLINK_INFO_VERSION_TYPE_NONE,
1838         DEVLINK_INFO_VERSION_TYPE_COMPONENT, /* May be used as flash update
1839                                               * component by name.
1840                                               */
1841 };
1842
1843 int devlink_info_version_fixed_put(struct devlink_info_req *req,
1844                                    const char *version_name,
1845                                    const char *version_value);
1846 int devlink_info_version_stored_put(struct devlink_info_req *req,
1847                                     const char *version_name,
1848                                     const char *version_value);
1849 int devlink_info_version_stored_put_ext(struct devlink_info_req *req,
1850                                         const char *version_name,
1851                                         const char *version_value,
1852                                         enum devlink_info_version_type version_type);
1853 int devlink_info_version_running_put(struct devlink_info_req *req,
1854                                      const char *version_name,
1855                                      const char *version_value);
1856 int devlink_info_version_running_put_ext(struct devlink_info_req *req,
1857                                          const char *version_name,
1858                                          const char *version_value,
1859                                          enum devlink_info_version_type version_type);
1860
1861 void devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg);
1862 void devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg);
1863
1864 void devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name);
1865 void devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg);
1866
1867 void devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg,
1868                                       const char *name);
1869 void devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg);
1870 void devlink_fmsg_binary_pair_nest_start(struct devlink_fmsg *fmsg,
1871                                          const char *name);
1872 void devlink_fmsg_binary_pair_nest_end(struct devlink_fmsg *fmsg);
1873
1874 void devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value);
1875 void devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value);
1876 void devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value,
1877                              u16 value_len);
1878
1879 void devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name,
1880                                 bool value);
1881 void devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name,
1882                               u8 value);
1883 void devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name,
1884                                u32 value);
1885 void devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name,
1886                                u64 value);
1887 void devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name,
1888                                   const char *value);
1889 void devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name,
1890                                   const void *value, u32 value_len);
1891
1892 struct devlink_health_reporter *
1893 devl_port_health_reporter_create(struct devlink_port *port,
1894                                  const struct devlink_health_reporter_ops *ops,
1895                                  u64 graceful_period, void *priv);
1896
1897 struct devlink_health_reporter *
1898 devlink_port_health_reporter_create(struct devlink_port *port,
1899                                     const struct devlink_health_reporter_ops *ops,
1900                                     u64 graceful_period, void *priv);
1901
1902 struct devlink_health_reporter *
1903 devl_health_reporter_create(struct devlink *devlink,
1904                             const struct devlink_health_reporter_ops *ops,
1905                             u64 graceful_period, void *priv);
1906
1907 struct devlink_health_reporter *
1908 devlink_health_reporter_create(struct devlink *devlink,
1909                                const struct devlink_health_reporter_ops *ops,
1910                                u64 graceful_period, void *priv);
1911
1912 void
1913 devl_health_reporter_destroy(struct devlink_health_reporter *reporter);
1914
1915 void
1916 devlink_health_reporter_destroy(struct devlink_health_reporter *reporter);
1917
1918 void *
1919 devlink_health_reporter_priv(struct devlink_health_reporter *reporter);
1920 int devlink_health_report(struct devlink_health_reporter *reporter,
1921                           const char *msg, void *priv_ctx);
1922 void
1923 devlink_health_reporter_state_update(struct devlink_health_reporter *reporter,
1924                                      enum devlink_health_reporter_state state);
1925 void
1926 devlink_health_reporter_recovery_done(struct devlink_health_reporter *reporter);
1927
1928 int devl_nested_devlink_set(struct devlink *devlink,
1929                             struct devlink *nested_devlink);
1930 bool devlink_is_reload_failed(const struct devlink *devlink);
1931 void devlink_remote_reload_actions_performed(struct devlink *devlink,
1932                                              enum devlink_reload_limit limit,
1933                                              u32 actions_performed);
1934
1935 void devlink_flash_update_status_notify(struct devlink *devlink,
1936                                         const char *status_msg,
1937                                         const char *component,
1938                                         unsigned long done,
1939                                         unsigned long total);
1940 void devlink_flash_update_timeout_notify(struct devlink *devlink,
1941                                          const char *status_msg,
1942                                          const char *component,
1943                                          unsigned long timeout);
1944
1945 int devl_traps_register(struct devlink *devlink,
1946                         const struct devlink_trap *traps,
1947                         size_t traps_count, void *priv);
1948 int devlink_traps_register(struct devlink *devlink,
1949                            const struct devlink_trap *traps,
1950                            size_t traps_count, void *priv);
1951 void devl_traps_unregister(struct devlink *devlink,
1952                            const struct devlink_trap *traps,
1953                            size_t traps_count);
1954 void devlink_traps_unregister(struct devlink *devlink,
1955                               const struct devlink_trap *traps,
1956                               size_t traps_count);
1957 void devlink_trap_report(struct devlink *devlink, struct sk_buff *skb,
1958                          void *trap_ctx, struct devlink_port *in_devlink_port,
1959                          const struct flow_action_cookie *fa_cookie);
1960 void *devlink_trap_ctx_priv(void *trap_ctx);
1961 int devl_trap_groups_register(struct devlink *devlink,
1962                               const struct devlink_trap_group *groups,
1963                               size_t groups_count);
1964 int devlink_trap_groups_register(struct devlink *devlink,
1965                                  const struct devlink_trap_group *groups,
1966                                  size_t groups_count);
1967 void devl_trap_groups_unregister(struct devlink *devlink,
1968                                  const struct devlink_trap_group *groups,
1969                                  size_t groups_count);
1970 void devlink_trap_groups_unregister(struct devlink *devlink,
1971                                     const struct devlink_trap_group *groups,
1972                                     size_t groups_count);
1973 int
1974 devl_trap_policers_register(struct devlink *devlink,
1975                             const struct devlink_trap_policer *policers,
1976                             size_t policers_count);
1977 void
1978 devl_trap_policers_unregister(struct devlink *devlink,
1979                               const struct devlink_trap_policer *policers,
1980                               size_t policers_count);
1981
1982 #if IS_ENABLED(CONFIG_NET_DEVLINK)
1983
1984 struct devlink *__must_check devlink_try_get(struct devlink *devlink);
1985 void devlink_put(struct devlink *devlink);
1986
1987 void devlink_compat_running_version(struct devlink *devlink,
1988                                     char *buf, size_t len);
1989 int devlink_compat_flash_update(struct devlink *devlink, const char *file_name);
1990 int devlink_compat_phys_port_name_get(struct net_device *dev,
1991                                       char *name, size_t len);
1992 int devlink_compat_switch_id_get(struct net_device *dev,
1993                                  struct netdev_phys_item_id *ppid);
1994
1995 int devlink_nl_port_handle_fill(struct sk_buff *msg, struct devlink_port *devlink_port);
1996 size_t devlink_nl_port_handle_size(struct devlink_port *devlink_port);
1997
1998 #else
1999
2000 static inline struct devlink *devlink_try_get(struct devlink *devlink)
2001 {
2002         return NULL;
2003 }
2004
2005 static inline void devlink_put(struct devlink *devlink)
2006 {
2007 }
2008
2009 static inline void
2010 devlink_compat_running_version(struct devlink *devlink, char *buf, size_t len)
2011 {
2012 }
2013
2014 static inline int
2015 devlink_compat_flash_update(struct devlink *devlink, const char *file_name)
2016 {
2017         return -EOPNOTSUPP;
2018 }
2019
2020 static inline int
2021 devlink_compat_phys_port_name_get(struct net_device *dev,
2022                                   char *name, size_t len)
2023 {
2024         return -EOPNOTSUPP;
2025 }
2026
2027 static inline int
2028 devlink_compat_switch_id_get(struct net_device *dev,
2029                              struct netdev_phys_item_id *ppid)
2030 {
2031         return -EOPNOTSUPP;
2032 }
2033
2034 static inline int
2035 devlink_nl_port_handle_fill(struct sk_buff *msg, struct devlink_port *devlink_port)
2036 {
2037         return 0;
2038 }
2039
2040 static inline size_t devlink_nl_port_handle_size(struct devlink_port *devlink_port)
2041 {
2042         return 0;
2043 }
2044
2045 #endif
2046
2047 #endif /* _NET_DEVLINK_H_ */