include/net/devlink.h

   1 /*
   2  * include/net/devlink.h - Network physical device Netlink interface
   3  * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
   4  * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  */
  11 #ifndef _NET_DEVLINK_H_
  12 #define _NET_DEVLINK_H_
  13
  14 #include <linux/device.h>
  15 #include <linux/slab.h>
  16 #include <linux/gfp.h>
  17 #include <linux/list.h>
  18 #include <linux/netdevice.h>
  19 #include <linux/spinlock.h>
  20 #include <net/net_namespace.h>
  21 #include <uapi/linux/devlink.h>
  22
  23 struct devlink_ops;
  24
  25 struct devlink {
  26         struct list_head list;
  27         struct list_head port_list;
  28         struct list_head sb_list;
  29         struct list_head dpipe_table_list;
  30         struct list_head resource_list;
  31         struct list_head param_list;
  32         struct list_head region_list;
  33         u32 snapshot_id;
  34         struct list_head reporter_list;
  35         struct mutex reporters_lock; /* protects reporter_list */
  36         struct devlink_dpipe_headers *dpipe_headers;
  37         const struct devlink_ops *ops;
  38         struct device *dev;
  39         possible_net_t _net;
  40         struct mutex lock;
  41         char priv[0] __aligned(NETDEV_ALIGN);
  42 };
  43
  44 struct devlink_port_attrs {
  45         u8 set:1,
  46            split:1,
  47            switch_port:1;
  48         enum devlink_port_flavour flavour;
  49         u32 port_number; /* same value as "split group" */
  50         u32 split_subport_number;
  51         struct netdev_phys_item_id switch_id;
  52 };
  53
  54 struct devlink_port {
  55         struct list_head list;
  56         struct list_head param_list;
  57         struct devlink *devlink;
  58         unsigned index;
  59         bool registered;
  60         spinlock_t type_lock; /* Protects type and type_dev
  61                                * pointer consistency.
  62                                */
  63         enum devlink_port_type type;
  64         enum devlink_port_type desired_type;
  65         void *type_dev;
  66         struct devlink_port_attrs attrs;
  67 };
  68
  69 struct devlink_sb_pool_info {
  70         enum devlink_sb_pool_type pool_type;
  71         u32 size;
  72         enum devlink_sb_threshold_type threshold_type;
  73         u32 cell_size;
  74 };
  75
  76 /**
  77  * struct devlink_dpipe_field - dpipe field object
  78  * @name: field name
  79  * @id: index inside the headers field array
  80  * @bitwidth: bitwidth
  81  * @mapping_type: mapping type
  82  */
  83 struct devlink_dpipe_field {
  84         const char *name;
  85         unsigned int id;
  86         unsigned int bitwidth;
  87         enum devlink_dpipe_field_mapping_type mapping_type;
  88 };
  89
  90 /**
  91  * struct devlink_dpipe_header - dpipe header object
  92  * @name: header name
  93  * @id: index, global/local detrmined by global bit
  94  * @fields: fields
  95  * @fields_count: number of fields
  96  * @global: indicates if header is shared like most protocol header
  97  *          or driver specific
  98  */
  99 struct devlink_dpipe_header {
 100         const char *name;
 101         unsigned int id;
 102         struct devlink_dpipe_field *fields;
 103         unsigned int fields_count;
 104         bool global;
 105 };
 106
 107 /**
 108  * struct devlink_dpipe_match - represents match operation
 109  * @type: type of match
 110  * @header_index: header index (packets can have several headers of same
 111  *                type like in case of tunnels)
 112  * @header: header
 113  * @fieled_id: field index
 114  */
 115 struct devlink_dpipe_match {
 116         enum devlink_dpipe_match_type type;
 117         unsigned int header_index;
 118         struct devlink_dpipe_header *header;
 119         unsigned int field_id;
 120 };
 121
 122 /**
 123  * struct devlink_dpipe_action - represents action operation
 124  * @type: type of action
 125  * @header_index: header index (packets can have several headers of same
 126  *                type like in case of tunnels)
 127  * @header: header
 128  * @fieled_id: field index
 129  */
 130 struct devlink_dpipe_action {
 131         enum devlink_dpipe_action_type type;
 132         unsigned int header_index;
 133         struct devlink_dpipe_header *header;
 134         unsigned int field_id;
 135 };
 136
 137 /**
 138  * struct devlink_dpipe_value - represents value of match/action
 139  * @action: action
 140  * @match: match
 141  * @mapping_value: in case the field has some mapping this value
 142  *                 specified the mapping value
 143  * @mapping_valid: specify if mapping value is valid
 144  * @value_size: value size
 145  * @value: value
 146  * @mask: bit mask
 147  */
 148 struct devlink_dpipe_value {
 149         union {
 150                 struct devlink_dpipe_action *action;
 151                 struct devlink_dpipe_match *match;
 152         };
 153         unsigned int mapping_value;
 154         bool mapping_valid;
 155         unsigned int value_size;
 156         void *value;
 157         void *mask;
 158 };
 159
 160 /**
 161  * struct devlink_dpipe_entry - table entry object
 162  * @index: index of the entry in the table
 163  * @match_values: match values
 164  * @matche_values_count: count of matches tuples
 165  * @action_values: actions values
 166  * @action_values_count: count of actions values
 167  * @counter: value of counter
 168  * @counter_valid: Specify if value is valid from hardware
 169  */
 170 struct devlink_dpipe_entry {
 171         u64 index;
 172         struct devlink_dpipe_value *match_values;
 173         unsigned int match_values_count;
 174         struct devlink_dpipe_value *action_values;
 175         unsigned int action_values_count;
 176         u64 counter;
 177         bool counter_valid;
 178 };
 179
 180 /**
 181  * struct devlink_dpipe_dump_ctx - context provided to driver in order
 182  *                                 to dump
 183  * @info: info
 184  * @cmd: devlink command
 185  * @skb: skb
 186  * @nest: top attribute
 187  * @hdr: hdr
 188  */
 189 struct devlink_dpipe_dump_ctx {
 190         struct genl_info *info;
 191         enum devlink_command cmd;
 192         struct sk_buff *skb;
 193         struct nlattr *nest;
 194         void *hdr;
 195 };
 196
 197 struct devlink_dpipe_table_ops;
 198
 199 /**
 200  * struct devlink_dpipe_table - table object
 201  * @priv: private
 202  * @name: table name
 203  * @counters_enabled: indicates if counters are active
 204  * @counter_control_extern: indicates if counter control is in dpipe or
 205  *                          external tool
 206  * @resource_valid: Indicate that the resource id is valid
 207  * @resource_id: relative resource this table is related to
 208  * @resource_units: number of resource's unit consumed per table's entry
 209  * @table_ops: table operations
 210  * @rcu: rcu
 211  */
 212 struct devlink_dpipe_table {
 213         void *priv;
 214         struct list_head list;
 215         const char *name;
 216         bool counters_enabled;
 217         bool counter_control_extern;
 218         bool resource_valid;
 219         u64 resource_id;
 220         u64 resource_units;
 221         struct devlink_dpipe_table_ops *table_ops;
 222         struct rcu_head rcu;
 223 };
 224
 225 /**
 226  * struct devlink_dpipe_table_ops - dpipe_table ops
 227  * @actions_dump - dumps all tables actions
 228  * @matches_dump - dumps all tables matches
 229  * @entries_dump - dumps all active entries in the table
 230  * @counters_set_update - when changing the counter status hardware sync
 231  *                        maybe needed to allocate/free counter related
 232  *                        resources
 233  * @size_get - get size
 234  */
 235 struct devlink_dpipe_table_ops {
 236         int (*actions_dump)(void *priv, struct sk_buff *skb);
 237         int (*matches_dump)(void *priv, struct sk_buff *skb);
 238         int (*entries_dump)(void *priv, bool counters_enabled,
 239                             struct devlink_dpipe_dump_ctx *dump_ctx);
 240         int (*counters_set_update)(void *priv, bool enable);
 241         u64 (*size_get)(void *priv);
 242 };
 243
 244 /**
 245  * struct devlink_dpipe_headers - dpipe headers
 246  * @headers - header array can be shared (global bit) or driver specific
 247  * @headers_count - count of headers
 248  */
 249 struct devlink_dpipe_headers {
 250         struct devlink_dpipe_header **headers;
 251         unsigned int headers_count;
 252 };
 253
 254 /**
 255  * struct devlink_resource_size_params - resource's size parameters
 256  * @size_min: minimum size which can be set
 257  * @size_max: maximum size which can be set
 258  * @size_granularity: size granularity
 259  * @size_unit: resource's basic unit
 260  */
 261 struct devlink_resource_size_params {
 262         u64 size_min;
 263         u64 size_max;
 264         u64 size_granularity;
 265         enum devlink_resource_unit unit;
 266 };
 267
 268 static inline void
 269 devlink_resource_size_params_init(struct devlink_resource_size_params *size_params,
 270                                   u64 size_min, u64 size_max,
 271                                   u64 size_granularity,
 272                                   enum devlink_resource_unit unit)
 273 {
 274         size_params->size_min = size_min;
 275         size_params->size_max = size_max;
 276         size_params->size_granularity = size_granularity;
 277         size_params->unit = unit;
 278 }
 279
 280 typedef u64 devlink_resource_occ_get_t(void *priv);
 281
 282 /**
 283  * struct devlink_resource - devlink resource
 284  * @name: name of the resource
 285  * @id: id, per devlink instance
 286  * @size: size of the resource
 287  * @size_new: updated size of the resource, reload is needed
 288  * @size_valid: valid in case the total size of the resource is valid
 289  *              including its children
 290  * @parent: parent resource
 291  * @size_params: size parameters
 292  * @list: parent list
 293  * @resource_list: list of child resources
 294  */
 295 struct devlink_resource {
 296         const char *name;
 297         u64 id;
 298         u64 size;
 299         u64 size_new;
 300         bool size_valid;
 301         struct devlink_resource *parent;
 302         struct devlink_resource_size_params size_params;
 303         struct list_head list;
 304         struct list_head resource_list;
 305         devlink_resource_occ_get_t *occ_get;
 306         void *occ_get_priv;
 307 };
 308
 309 #define DEVLINK_RESOURCE_ID_PARENT_TOP 0
 310
 311 #define __DEVLINK_PARAM_MAX_STRING_VALUE 32
 312 enum devlink_param_type {
 313         DEVLINK_PARAM_TYPE_U8,
 314         DEVLINK_PARAM_TYPE_U16,
 315         DEVLINK_PARAM_TYPE_U32,
 316         DEVLINK_PARAM_TYPE_STRING,
 317         DEVLINK_PARAM_TYPE_BOOL,
 318 };
 319
 320 union devlink_param_value {
 321         u8 vu8;
 322         u16 vu16;
 323         u32 vu32;
 324         char vstr[__DEVLINK_PARAM_MAX_STRING_VALUE];
 325         bool vbool;
 326 };
 327
 328 struct devlink_param_gset_ctx {
 329         union devlink_param_value val;
 330         enum devlink_param_cmode cmode;
 331 };
 332
 333 /**
 334  * struct devlink_param - devlink configuration parameter data
 335  * @name: name of the parameter
 336  * @generic: indicates if the parameter is generic or driver specific
 337  * @type: parameter type
 338  * @supported_cmodes: bitmap of supported configuration modes
 339  * @get: get parameter value, used for runtime and permanent
 340  *       configuration modes
 341  * @set: set parameter value, used for runtime and permanent
 342  *       configuration modes
 343  * @validate: validate input value is applicable (within value range, etc.)
 344  *
 345  * This struct should be used by the driver to fill the data for
 346  * a parameter it registers.
 347  */
 348 struct devlink_param {
 349         u32 id;
 350         const char *name;
 351         bool generic;
 352         enum devlink_param_type type;
 353         unsigned long supported_cmodes;
 354         int (*get)(struct devlink *devlink, u32 id,
 355                    struct devlink_param_gset_ctx *ctx);
 356         int (*set)(struct devlink *devlink, u32 id,
 357                    struct devlink_param_gset_ctx *ctx);
 358         int (*validate)(struct devlink *devlink, u32 id,
 359                         union devlink_param_value val,
 360                         struct netlink_ext_ack *extack);
 361 };
 362
 363 struct devlink_param_item {
 364         struct list_head list;
 365         const struct devlink_param *param;
 366         union devlink_param_value driverinit_value;
 367         bool driverinit_value_valid;
 368         bool published;
 369 };
 370
 371 enum devlink_param_generic_id {
 372         DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
 373         DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
 374         DEVLINK_PARAM_GENERIC_ID_ENABLE_SRIOV,
 375         DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,
 376         DEVLINK_PARAM_GENERIC_ID_IGNORE_ARI,
 377         DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MAX,
 378         DEVLINK_PARAM_GENERIC_ID_MSIX_VEC_PER_PF_MIN,
 379         DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
 380
 381         /* add new param generic ids above here*/
 382         __DEVLINK_PARAM_GENERIC_ID_MAX,
 383         DEVLINK_PARAM_GENERIC_ID_MAX = __DEVLINK_PARAM_GENERIC_ID_MAX - 1,
 384 };
 385
 386 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_NAME "internal_error_reset"
 387 #define DEVLINK_PARAM_GENERIC_INT_ERR_RESET_TYPE DEVLINK_PARAM_TYPE_BOOL
 388
 389 #define DEVLINK_PARAM_GENERIC_MAX_MACS_NAME "max_macs"
 390 #define DEVLINK_PARAM_GENERIC_MAX_MACS_TYPE DEVLINK_PARAM_TYPE_U32
 391
 392 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_NAME "enable_sriov"
 393 #define DEVLINK_PARAM_GENERIC_ENABLE_SRIOV_TYPE DEVLINK_PARAM_TYPE_BOOL
 394
 395 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_NAME "region_snapshot_enable"
 396 #define DEVLINK_PARAM_GENERIC_REGION_SNAPSHOT_TYPE DEVLINK_PARAM_TYPE_BOOL
 397
 398 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_NAME "ignore_ari"
 399 #define DEVLINK_PARAM_GENERIC_IGNORE_ARI_TYPE DEVLINK_PARAM_TYPE_BOOL
 400
 401 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_NAME "msix_vec_per_pf_max"
 402 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MAX_TYPE DEVLINK_PARAM_TYPE_U32
 403
 404 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_NAME "msix_vec_per_pf_min"
 405 #define DEVLINK_PARAM_GENERIC_MSIX_VEC_PER_PF_MIN_TYPE DEVLINK_PARAM_TYPE_U32
 406
 407 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_NAME "fw_load_policy"
 408 #define DEVLINK_PARAM_GENERIC_FW_LOAD_POLICY_TYPE DEVLINK_PARAM_TYPE_U8
 409
 410 #define DEVLINK_PARAM_GENERIC(_id, _cmodes, _get, _set, _validate)      \
 411 {                                                                       \
 412         .id = DEVLINK_PARAM_GENERIC_ID_##_id,                           \
 413         .name = DEVLINK_PARAM_GENERIC_##_id##_NAME,                     \
 414         .type = DEVLINK_PARAM_GENERIC_##_id##_TYPE,                     \
 415         .generic = true,                                                \
 416         .supported_cmodes = _cmodes,                                    \
 417         .get = _get,                                                    \
 418         .set = _set,                                                    \
 419         .validate = _validate,                                          \
 420 }
 421
 422 #define DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, _get, _set, _validate) \
 423 {                                                                       \
 424         .id = _id,                                                      \
 425         .name = _name,                                                  \
 426         .type = _type,                                                  \
 427         .supported_cmodes = _cmodes,                                    \
 428         .get = _get,                                                    \
 429         .set = _set,                                                    \
 430         .validate = _validate,                                          \
 431 }
 432
 433 /* Part number, identifier of board design */
 434 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_ID   "board.id"
 435 /* Revision of board design */
 436 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_REV  "board.rev"
 437 /* Maker of the board */
 438 #define DEVLINK_INFO_VERSION_GENERIC_BOARD_MANUFACTURE  "board.manufacture"
 439
 440 /* Control processor FW version */
 441 #define DEVLINK_INFO_VERSION_GENERIC_FW_MGMT    "fw.mgmt"
 442 /* Data path microcode controlling high-speed packet processing */
 443 #define DEVLINK_INFO_VERSION_GENERIC_FW_APP     "fw.app"
 444 /* UNDI software version */
 445 #define DEVLINK_INFO_VERSION_GENERIC_FW_UNDI    "fw.undi"
 446 /* NCSI support/handler version */
 447 #define DEVLINK_INFO_VERSION_GENERIC_FW_NCSI    "fw.ncsi"
 448
 449 struct devlink_region;
 450 struct devlink_info_req;
 451
 452 typedef void devlink_snapshot_data_dest_t(const void *data);
 453
 454 struct devlink_fmsg;
 455 struct devlink_health_reporter;
 456
 457 enum devlink_health_reporter_state {
 458         DEVLINK_HEALTH_REPORTER_STATE_HEALTHY,
 459         DEVLINK_HEALTH_REPORTER_STATE_ERROR,
 460 };
 461
 462 /**
 463  * struct devlink_health_reporter_ops - Reporter operations
 464  * @name: reporter name
 465  * @recover: callback to recover from reported error
 466  *           if priv_ctx is NULL, run a full recover
 467  * @dump: callback to dump an object
 468  *        if priv_ctx is NULL, run a full dump
 469  * @diagnose: callback to diagnose the current status
 470  */
 471
 472 struct devlink_health_reporter_ops {
 473         char *name;
 474         int (*recover)(struct devlink_health_reporter *reporter,
 475                        void *priv_ctx);
 476         int (*dump)(struct devlink_health_reporter *reporter,
 477                     struct devlink_fmsg *fmsg, void *priv_ctx);
 478         int (*diagnose)(struct devlink_health_reporter *reporter,
 479                         struct devlink_fmsg *fmsg);
 480 };
 481
 482 struct devlink_ops {
 483         int (*reload)(struct devlink *devlink, struct netlink_ext_ack *extack);
 484         int (*port_type_set)(struct devlink_port *devlink_port,
 485                              enum devlink_port_type port_type);
 486         int (*port_split)(struct devlink *devlink, unsigned int port_index,
 487                           unsigned int count, struct netlink_ext_ack *extack);
 488         int (*port_unsplit)(struct devlink *devlink, unsigned int port_index,
 489                             struct netlink_ext_ack *extack);
 490         int (*sb_pool_get)(struct devlink *devlink, unsigned int sb_index,
 491                            u16 pool_index,
 492                            struct devlink_sb_pool_info *pool_info);
 493         int (*sb_pool_set)(struct devlink *devlink, unsigned int sb_index,
 494                            u16 pool_index, u32 size,
 495                            enum devlink_sb_threshold_type threshold_type,
 496                            struct netlink_ext_ack *extack);
 497         int (*sb_port_pool_get)(struct devlink_port *devlink_port,
 498                                 unsigned int sb_index, u16 pool_index,
 499                                 u32 *p_threshold);
 500         int (*sb_port_pool_set)(struct devlink_port *devlink_port,
 501                                 unsigned int sb_index, u16 pool_index,
 502                                 u32 threshold, struct netlink_ext_ack *extack);
 503         int (*sb_tc_pool_bind_get)(struct devlink_port *devlink_port,
 504                                    unsigned int sb_index,
 505                                    u16 tc_index,
 506                                    enum devlink_sb_pool_type pool_type,
 507                                    u16 *p_pool_index, u32 *p_threshold);
 508         int (*sb_tc_pool_bind_set)(struct devlink_port *devlink_port,
 509                                    unsigned int sb_index,
 510                                    u16 tc_index,
 511                                    enum devlink_sb_pool_type pool_type,
 512                                    u16 pool_index, u32 threshold,
 513                                    struct netlink_ext_ack *extack);
 514         int (*sb_occ_snapshot)(struct devlink *devlink,
 515                                unsigned int sb_index);
 516         int (*sb_occ_max_clear)(struct devlink *devlink,
 517                                 unsigned int sb_index);
 518         int (*sb_occ_port_pool_get)(struct devlink_port *devlink_port,
 519                                     unsigned int sb_index, u16 pool_index,
 520                                     u32 *p_cur, u32 *p_max);
 521         int (*sb_occ_tc_port_bind_get)(struct devlink_port *devlink_port,
 522                                        unsigned int sb_index,
 523                                        u16 tc_index,
 524                                        enum devlink_sb_pool_type pool_type,
 525                                        u32 *p_cur, u32 *p_max);
 526
 527         int (*eswitch_mode_get)(struct devlink *devlink, u16 *p_mode);
 528         int (*eswitch_mode_set)(struct devlink *devlink, u16 mode,
 529                                 struct netlink_ext_ack *extack);
 530         int (*eswitch_inline_mode_get)(struct devlink *devlink, u8 *p_inline_mode);
 531         int (*eswitch_inline_mode_set)(struct devlink *devlink, u8 inline_mode,
 532                                        struct netlink_ext_ack *extack);
 533         int (*eswitch_encap_mode_get)(struct devlink *devlink, u8 *p_encap_mode);
 534         int (*eswitch_encap_mode_set)(struct devlink *devlink, u8 encap_mode,
 535                                       struct netlink_ext_ack *extack);
 536         int (*info_get)(struct devlink *devlink, struct devlink_info_req *req,
 537                         struct netlink_ext_ack *extack);
 538         int (*flash_update)(struct devlink *devlink, const char *file_name,
 539                             const char *component,
 540                             struct netlink_ext_ack *extack);
 541 };
 542
 543 static inline void *devlink_priv(struct devlink *devlink)
 544 {
 545         BUG_ON(!devlink);
 546         return &devlink->priv;
 547 }
 548
 549 static inline struct devlink *priv_to_devlink(void *priv)
 550 {
 551         BUG_ON(!priv);
 552         return container_of(priv, struct devlink, priv);
 553 }
 554
 555 static inline struct devlink_port *
 556 netdev_to_devlink_port(struct net_device *dev)
 557 {
 558         if (dev->netdev_ops->ndo_get_devlink_port)
 559                 return dev->netdev_ops->ndo_get_devlink_port(dev);
 560         return NULL;
 561 }
 562
 563 static inline struct devlink *netdev_to_devlink(struct net_device *dev)
 564 {
 565         struct devlink_port *devlink_port = netdev_to_devlink_port(dev);
 566
 567         if (devlink_port)
 568                 return devlink_port->devlink;
 569         return NULL;
 570 }
 571
 572 struct ib_device;
 573
 574 struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size);
 575 int devlink_register(struct devlink *devlink, struct device *dev);
 576 void devlink_unregister(struct devlink *devlink);
 577 void devlink_free(struct devlink *devlink);
 578 int devlink_port_register(struct devlink *devlink,
 579                           struct devlink_port *devlink_port,
 580                           unsigned int port_index);
 581 void devlink_port_unregister(struct devlink_port *devlink_port);
 582 void devlink_port_type_eth_set(struct devlink_port *devlink_port,
 583                                struct net_device *netdev);
 584 void devlink_port_type_ib_set(struct devlink_port *devlink_port,
 585                               struct ib_device *ibdev);
 586 void devlink_port_type_clear(struct devlink_port *devlink_port);
 587 void devlink_port_attrs_set(struct devlink_port *devlink_port,
 588                             enum devlink_port_flavour flavour,
 589                             u32 port_number, bool split,
 590                             u32 split_subport_number,
 591                             const unsigned char *switch_id,
 592                             unsigned char switch_id_len);
 593 int devlink_sb_register(struct devlink *devlink, unsigned int sb_index,
 594                         u32 size, u16 ingress_pools_count,
 595                         u16 egress_pools_count, u16 ingress_tc_count,
 596                         u16 egress_tc_count);
 597 void devlink_sb_unregister(struct devlink *devlink, unsigned int sb_index);
 598 int devlink_dpipe_table_register(struct devlink *devlink,
 599                                  const char *table_name,
 600                                  struct devlink_dpipe_table_ops *table_ops,
 601                                  void *priv, bool counter_control_extern);
 602 void devlink_dpipe_table_unregister(struct devlink *devlink,
 603                                     const char *table_name);
 604 int devlink_dpipe_headers_register(struct devlink *devlink,
 605                                    struct devlink_dpipe_headers *dpipe_headers);
 606 void devlink_dpipe_headers_unregister(struct devlink *devlink);
 607 bool devlink_dpipe_table_counter_enabled(struct devlink *devlink,
 608                                          const char *table_name);
 609 int devlink_dpipe_entry_ctx_prepare(struct devlink_dpipe_dump_ctx *dump_ctx);
 610 int devlink_dpipe_entry_ctx_append(struct devlink_dpipe_dump_ctx *dump_ctx,
 611                                    struct devlink_dpipe_entry *entry);
 612 int devlink_dpipe_entry_ctx_close(struct devlink_dpipe_dump_ctx *dump_ctx);
 613 void devlink_dpipe_entry_clear(struct devlink_dpipe_entry *entry);
 614 int devlink_dpipe_action_put(struct sk_buff *skb,
 615                              struct devlink_dpipe_action *action);
 616 int devlink_dpipe_match_put(struct sk_buff *skb,
 617                             struct devlink_dpipe_match *match);
 618 extern struct devlink_dpipe_header devlink_dpipe_header_ethernet;
 619 extern struct devlink_dpipe_header devlink_dpipe_header_ipv4;
 620 extern struct devlink_dpipe_header devlink_dpipe_header_ipv6;
 621
 622 int devlink_resource_register(struct devlink *devlink,
 623                               const char *resource_name,
 624                               u64 resource_size,
 625                               u64 resource_id,
 626                               u64 parent_resource_id,
 627                               const struct devlink_resource_size_params *size_params);
 628 void devlink_resources_unregister(struct devlink *devlink,
 629                                   struct devlink_resource *resource);
 630 int devlink_resource_size_get(struct devlink *devlink,
 631                               u64 resource_id,
 632                               u64 *p_resource_size);
 633 int devlink_dpipe_table_resource_set(struct devlink *devlink,
 634                                      const char *table_name, u64 resource_id,
 635                                      u64 resource_units);
 636 void devlink_resource_occ_get_register(struct devlink *devlink,
 637                                        u64 resource_id,
 638                                        devlink_resource_occ_get_t *occ_get,
 639                                        void *occ_get_priv);
 640 void devlink_resource_occ_get_unregister(struct devlink *devlink,
 641                                          u64 resource_id);
 642 int devlink_params_register(struct devlink *devlink,
 643                             const struct devlink_param *params,
 644                             size_t params_count);
 645 void devlink_params_unregister(struct devlink *devlink,
 646                                const struct devlink_param *params,
 647                                size_t params_count);
 648 void devlink_params_publish(struct devlink *devlink);
 649 void devlink_params_unpublish(struct devlink *devlink);
 650 int devlink_port_params_register(struct devlink_port *devlink_port,
 651                                  const struct devlink_param *params,
 652                                  size_t params_count);
 653 void devlink_port_params_unregister(struct devlink_port *devlink_port,
 654                                     const struct devlink_param *params,
 655                                     size_t params_count);
 656 int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
 657                                        union devlink_param_value *init_val);
 658 int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
 659                                        union devlink_param_value init_val);
 660 int
 661 devlink_port_param_driverinit_value_get(struct devlink_port *devlink_port,
 662                                         u32 param_id,
 663                                         union devlink_param_value *init_val);
 664 int devlink_port_param_driverinit_value_set(struct devlink_port *devlink_port,
 665                                             u32 param_id,
 666                                             union devlink_param_value init_val);
 667 void devlink_param_value_changed(struct devlink *devlink, u32 param_id);
 668 void devlink_port_param_value_changed(struct devlink_port *devlink_port,
 669                                       u32 param_id);
 670 void devlink_param_value_str_fill(union devlink_param_value *dst_val,
 671                                   const char *src);
 672 struct devlink_region *devlink_region_create(struct devlink *devlink,
 673                                              const char *region_name,
 674                                              u32 region_max_snapshots,
 675                                              u64 region_size);
 676 void devlink_region_destroy(struct devlink_region *region);
 677 u32 devlink_region_shapshot_id_get(struct devlink *devlink);
 678 int devlink_region_snapshot_create(struct devlink_region *region, u64 data_len,
 679                                    u8 *data, u32 snapshot_id,
 680                                    devlink_snapshot_data_dest_t *data_destructor);
 681 int devlink_info_serial_number_put(struct devlink_info_req *req,
 682                                    const char *sn);
 683 int devlink_info_driver_name_put(struct devlink_info_req *req,
 684                                  const char *name);
 685 int devlink_info_version_fixed_put(struct devlink_info_req *req,
 686                                    const char *version_name,
 687                                    const char *version_value);
 688 int devlink_info_version_stored_put(struct devlink_info_req *req,
 689                                     const char *version_name,
 690                                     const char *version_value);
 691 int devlink_info_version_running_put(struct devlink_info_req *req,
 692                                      const char *version_name,
 693                                      const char *version_value);
 694
 695 int devlink_fmsg_obj_nest_start(struct devlink_fmsg *fmsg);
 696 int devlink_fmsg_obj_nest_end(struct devlink_fmsg *fmsg);
 697
 698 int devlink_fmsg_pair_nest_start(struct devlink_fmsg *fmsg, const char *name);
 699 int devlink_fmsg_pair_nest_end(struct devlink_fmsg *fmsg);
 700
 701 int devlink_fmsg_arr_pair_nest_start(struct devlink_fmsg *fmsg,
 702                                      const char *name);
 703 int devlink_fmsg_arr_pair_nest_end(struct devlink_fmsg *fmsg);
 704
 705 int devlink_fmsg_bool_put(struct devlink_fmsg *fmsg, bool value);
 706 int devlink_fmsg_u8_put(struct devlink_fmsg *fmsg, u8 value);
 707 int devlink_fmsg_u32_put(struct devlink_fmsg *fmsg, u32 value);
 708 int devlink_fmsg_u64_put(struct devlink_fmsg *fmsg, u64 value);
 709 int devlink_fmsg_string_put(struct devlink_fmsg *fmsg, const char *value);
 710 int devlink_fmsg_binary_put(struct devlink_fmsg *fmsg, const void *value,
 711                             u16 value_len);
 712
 713 int devlink_fmsg_bool_pair_put(struct devlink_fmsg *fmsg, const char *name,
 714                                bool value);
 715 int devlink_fmsg_u8_pair_put(struct devlink_fmsg *fmsg, const char *name,
 716                              u8 value);
 717 int devlink_fmsg_u32_pair_put(struct devlink_fmsg *fmsg, const char *name,
 718                               u32 value);
 719 int devlink_fmsg_u64_pair_put(struct devlink_fmsg *fmsg, const char *name,
 720                               u64 value);
 721 int devlink_fmsg_string_pair_put(struct devlink_fmsg *fmsg, const char *name,
 722                                  const char *value);
 723 int devlink_fmsg_binary_pair_put(struct devlink_fmsg *fmsg, const char *name,
 724                                  const void *value, u16 value_len);
 725
 726 struct devlink_health_reporter *
 727 devlink_health_reporter_create(struct devlink *devlink,
 728                                const struct devlink_health_reporter_ops *ops,
 729                                u64 graceful_period, bool auto_recover,
 730                                void *priv);
 731 void
 732 devlink_health_reporter_destroy(struct devlink_health_reporter *reporter);
 733
 734 void *
 735 devlink_health_reporter_priv(struct devlink_health_reporter *reporter);
 736 int devlink_health_report(struct devlink_health_reporter *reporter,
 737                           const char *msg, void *priv_ctx);
 738 void
 739 devlink_health_reporter_state_update(struct devlink_health_reporter *reporter,
 740                                      enum devlink_health_reporter_state state);
 741
 742 #if IS_ENABLED(CONFIG_NET_DEVLINK)
 743
 744 void devlink_compat_running_version(struct net_device *dev,
 745                                     char *buf, size_t len);
 746 int devlink_compat_flash_update(struct net_device *dev, const char *file_name);
 747 int devlink_compat_phys_port_name_get(struct net_device *dev,
 748                                       char *name, size_t len);
 749 int devlink_compat_switch_id_get(struct net_device *dev,
 750                                  struct netdev_phys_item_id *ppid);
 751
 752 #else
 753
 754 static inline void
 755 devlink_compat_running_version(struct net_device *dev, char *buf, size_t len)
 756 {
 757 }
 758
 759 static inline int
 760 devlink_compat_flash_update(struct net_device *dev, const char *file_name)
 761 {
 762         return -EOPNOTSUPP;
 763 }
 764
 765 static inline int
 766 devlink_compat_phys_port_name_get(struct net_device *dev,
 767                                   char *name, size_t len)
 768 {
 769         return -EOPNOTSUPP;
 770 }
 771
 772 static inline int
 773 devlink_compat_switch_id_get(struct net_device *dev,
 774                              struct netdev_phys_item_id *ppid)
 775 {
 776         return -EOPNOTSUPP;
 777 }
 778
 779 #endif
 780
 781 #endif /* _NET_DEVLINK_H_ */