1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ 2 /* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */ 3 4 #ifndef _MLXSW_CORE_H 5 #define _MLXSW_CORE_H 6 7 #include <linux/module.h> 8 #include <linux/device.h> 9 #include <linux/slab.h> 10 #include <linux/gfp.h> 11 #include <linux/types.h> 12 #include <linux/skbuff.h> 13 #include <linux/workqueue.h> 14 #include <linux/net_namespace.h> 15 #include <net/devlink.h> 16 17 #include "trap.h" 18 #include "reg.h" 19 #include "cmd.h" 20 #include "resources.h" 21 22 enum mlxsw_core_resource_id { 23 MLXSW_CORE_RESOURCE_PORTS = 1, 24 MLXSW_CORE_RESOURCE_MAX, 25 }; 26 27 struct mlxsw_core; 28 struct mlxsw_core_port; 29 struct mlxsw_driver; 30 struct mlxsw_bus; 31 struct mlxsw_bus_info; 32 struct mlxsw_fw_rev; 33 34 unsigned int mlxsw_core_max_ports(const struct mlxsw_core *mlxsw_core); 35 36 void *mlxsw_core_driver_priv(struct mlxsw_core *mlxsw_core); 37 38 bool 39 mlxsw_core_fw_rev_minor_subminor_validate(const struct mlxsw_fw_rev *rev, 40 const struct mlxsw_fw_rev *req_rev); 41 42 int mlxsw_core_driver_register(struct mlxsw_driver *mlxsw_driver); 43 void mlxsw_core_driver_unregister(struct mlxsw_driver *mlxsw_driver); 44 45 int mlxsw_core_bus_device_register(const struct mlxsw_bus_info *mlxsw_bus_info, 46 const struct mlxsw_bus *mlxsw_bus, 47 void *bus_priv, bool reload, 48 struct devlink *devlink, 49 struct netlink_ext_ack *extack); 50 void mlxsw_core_bus_device_unregister(struct mlxsw_core *mlxsw_core, bool reload); 51 52 struct mlxsw_tx_info { 53 u16 local_port; 54 bool is_emad; 55 }; 56 57 struct mlxsw_rx_md_info { 58 u32 cookie_index; 59 u32 latency; 60 u32 tx_congestion; 61 union { 62 /* Valid when 'tx_port_valid' is set. */ 63 u16 tx_sys_port; 64 u16 tx_lag_id; 65 }; 66 u16 tx_lag_port_index; /* Valid when 'tx_port_is_lag' is set. */ 67 u8 tx_tc; 68 u8 latency_valid:1, 69 tx_congestion_valid:1, 70 tx_tc_valid:1, 71 tx_port_valid:1, 72 tx_port_is_lag:1, 73 unused:3; 74 }; 75 76 bool mlxsw_core_skb_transmit_busy(struct mlxsw_core *mlxsw_core, 77 const struct mlxsw_tx_info *tx_info); 78 int mlxsw_core_skb_transmit(struct mlxsw_core *mlxsw_core, struct sk_buff *skb, 79 const struct mlxsw_tx_info *tx_info); 80 void mlxsw_core_ptp_transmitted(struct mlxsw_core *mlxsw_core, 81 struct sk_buff *skb, u16 local_port); 82 83 struct mlxsw_rx_listener { 84 void (*func)(struct sk_buff *skb, u16 local_port, void *priv); 85 u16 local_port; 86 u8 mirror_reason; 87 u16 trap_id; 88 }; 89 90 struct mlxsw_event_listener { 91 void (*func)(const struct mlxsw_reg_info *reg, 92 char *payload, void *priv); 93 enum mlxsw_event_trap_id trap_id; 94 }; 95 96 struct mlxsw_listener { 97 u16 trap_id; 98 union { 99 struct mlxsw_rx_listener rx_listener; 100 struct mlxsw_event_listener event_listener; 101 }; 102 enum mlxsw_reg_hpkt_action en_action; /* Action when enabled */ 103 enum mlxsw_reg_hpkt_action dis_action; /* Action when disabled */ 104 u8 en_trap_group; /* Trap group when enabled */ 105 u8 dis_trap_group; /* Trap group when disabled */ 106 u8 is_ctrl:1, /* should go via control buffer or not */ 107 is_event:1, 108 enabled_on_register:1; /* Trap should be enabled when listener 109 * is registered. 110 */ 111 }; 112 113 #define __MLXSW_RXL(_func, _trap_id, _en_action, _is_ctrl, _en_trap_group, \ 114 _dis_action, _enabled_on_register, _dis_trap_group, \ 115 _mirror_reason) \ 116 { \ 117 .trap_id = MLXSW_TRAP_ID_##_trap_id, \ 118 .rx_listener = \ 119 { \ 120 .func = _func, \ 121 .local_port = MLXSW_PORT_DONT_CARE, \ 122 .mirror_reason = _mirror_reason, \ 123 .trap_id = MLXSW_TRAP_ID_##_trap_id, \ 124 }, \ 125 .en_action = MLXSW_REG_HPKT_ACTION_##_en_action, \ 126 .dis_action = MLXSW_REG_HPKT_ACTION_##_dis_action, \ 127 .en_trap_group = MLXSW_REG_HTGT_TRAP_GROUP_##_en_trap_group, \ 128 .dis_trap_group = MLXSW_REG_HTGT_TRAP_GROUP_##_dis_trap_group, \ 129 .is_ctrl = _is_ctrl, \ 130 .enabled_on_register = _enabled_on_register, \ 131 } 132 133 #define MLXSW_RXL(_func, _trap_id, _en_action, _is_ctrl, _trap_group, \ 134 _dis_action) \ 135 __MLXSW_RXL(_func, _trap_id, _en_action, _is_ctrl, _trap_group, \ 136 _dis_action, true, _trap_group, 0) 137 138 #define MLXSW_RXL_DIS(_func, _trap_id, _en_action, _is_ctrl, _en_trap_group, \ 139 _dis_action, _dis_trap_group) \ 140 __MLXSW_RXL(_func, _trap_id, _en_action, _is_ctrl, _en_trap_group, \ 141 _dis_action, false, _dis_trap_group, 0) 142 143 #define MLXSW_RXL_MIRROR(_func, _session_id, _trap_group, _mirror_reason) \ 144 __MLXSW_RXL(_func, MIRROR_SESSION##_session_id, TRAP_TO_CPU, false, \ 145 _trap_group, TRAP_TO_CPU, true, _trap_group, \ 146 _mirror_reason) 147 148 #define MLXSW_EVENTL(_func, _trap_id, _trap_group) \ 149 { \ 150 .trap_id = MLXSW_TRAP_ID_##_trap_id, \ 151 .event_listener = \ 152 { \ 153 .func = _func, \ 154 .trap_id = MLXSW_TRAP_ID_##_trap_id, \ 155 }, \ 156 .en_action = MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU, \ 157 .en_trap_group = MLXSW_REG_HTGT_TRAP_GROUP_##_trap_group, \ 158 .is_event = true, \ 159 .enabled_on_register = true, \ 160 } 161 162 #define MLXSW_CORE_EVENTL(_func, _trap_id) \ 163 MLXSW_EVENTL(_func, _trap_id, CORE_EVENT) 164 165 int mlxsw_core_rx_listener_register(struct mlxsw_core *mlxsw_core, 166 const struct mlxsw_rx_listener *rxl, 167 void *priv, bool enabled); 168 void mlxsw_core_rx_listener_unregister(struct mlxsw_core *mlxsw_core, 169 const struct mlxsw_rx_listener *rxl); 170 171 int mlxsw_core_event_listener_register(struct mlxsw_core *mlxsw_core, 172 const struct mlxsw_event_listener *el, 173 void *priv); 174 void mlxsw_core_event_listener_unregister(struct mlxsw_core *mlxsw_core, 175 const struct mlxsw_event_listener *el); 176 177 int mlxsw_core_trap_register(struct mlxsw_core *mlxsw_core, 178 const struct mlxsw_listener *listener, 179 void *priv); 180 void mlxsw_core_trap_unregister(struct mlxsw_core *mlxsw_core, 181 const struct mlxsw_listener *listener, 182 void *priv); 183 int mlxsw_core_traps_register(struct mlxsw_core *mlxsw_core, 184 const struct mlxsw_listener *listeners, 185 size_t listeners_count, void *priv); 186 void mlxsw_core_traps_unregister(struct mlxsw_core *mlxsw_core, 187 const struct mlxsw_listener *listeners, 188 size_t listeners_count, void *priv); 189 int mlxsw_core_trap_state_set(struct mlxsw_core *mlxsw_core, 190 const struct mlxsw_listener *listener, 191 bool enabled); 192 193 typedef void mlxsw_reg_trans_cb_t(struct mlxsw_core *mlxsw_core, char *payload, 194 size_t payload_len, unsigned long cb_priv); 195 196 int mlxsw_reg_trans_query(struct mlxsw_core *mlxsw_core, 197 const struct mlxsw_reg_info *reg, char *payload, 198 struct list_head *bulk_list, 199 mlxsw_reg_trans_cb_t *cb, unsigned long cb_priv); 200 int mlxsw_reg_trans_write(struct mlxsw_core *mlxsw_core, 201 const struct mlxsw_reg_info *reg, char *payload, 202 struct list_head *bulk_list, 203 mlxsw_reg_trans_cb_t *cb, unsigned long cb_priv); 204 int mlxsw_reg_trans_bulk_wait(struct list_head *bulk_list); 205 206 int mlxsw_reg_query(struct mlxsw_core *mlxsw_core, 207 const struct mlxsw_reg_info *reg, char *payload); 208 int mlxsw_reg_write(struct mlxsw_core *mlxsw_core, 209 const struct mlxsw_reg_info *reg, char *payload); 210 211 struct mlxsw_rx_info { 212 bool is_lag; 213 union { 214 u16 sys_port; 215 u16 lag_id; 216 } u; 217 u16 lag_port_index; 218 u8 mirror_reason; 219 int trap_id; 220 }; 221 222 void mlxsw_core_skb_receive(struct mlxsw_core *mlxsw_core, struct sk_buff *skb, 223 struct mlxsw_rx_info *rx_info); 224 225 void mlxsw_core_lag_mapping_set(struct mlxsw_core *mlxsw_core, 226 u16 lag_id, u8 port_index, u16 local_port); 227 u16 mlxsw_core_lag_mapping_get(struct mlxsw_core *mlxsw_core, 228 u16 lag_id, u8 port_index); 229 void mlxsw_core_lag_mapping_clear(struct mlxsw_core *mlxsw_core, 230 u16 lag_id, u16 local_port); 231 232 void *mlxsw_core_port_driver_priv(struct mlxsw_core_port *mlxsw_core_port); 233 int mlxsw_core_port_init(struct mlxsw_core *mlxsw_core, u16 local_port, 234 u32 port_number, bool split, u32 split_port_subnumber, 235 bool splittable, u32 lanes, 236 const unsigned char *switch_id, 237 unsigned char switch_id_len); 238 void mlxsw_core_port_fini(struct mlxsw_core *mlxsw_core, u16 local_port); 239 int mlxsw_core_cpu_port_init(struct mlxsw_core *mlxsw_core, 240 void *port_driver_priv, 241 const unsigned char *switch_id, 242 unsigned char switch_id_len); 243 void mlxsw_core_cpu_port_fini(struct mlxsw_core *mlxsw_core); 244 void mlxsw_core_port_eth_set(struct mlxsw_core *mlxsw_core, u16 local_port, 245 void *port_driver_priv, struct net_device *dev); 246 void mlxsw_core_port_ib_set(struct mlxsw_core *mlxsw_core, u16 local_port, 247 void *port_driver_priv); 248 void mlxsw_core_port_clear(struct mlxsw_core *mlxsw_core, u16 local_port, 249 void *port_driver_priv); 250 enum devlink_port_type mlxsw_core_port_type_get(struct mlxsw_core *mlxsw_core, 251 u16 local_port); 252 struct devlink_port * 253 mlxsw_core_port_devlink_port_get(struct mlxsw_core *mlxsw_core, 254 u16 local_port); 255 bool mlxsw_core_port_is_xm(const struct mlxsw_core *mlxsw_core, u16 local_port); 256 struct mlxsw_env *mlxsw_core_env(const struct mlxsw_core *mlxsw_core); 257 258 int mlxsw_core_schedule_dw(struct delayed_work *dwork, unsigned long delay); 259 bool mlxsw_core_schedule_work(struct work_struct *work); 260 void mlxsw_core_flush_owq(void); 261 int mlxsw_core_resources_query(struct mlxsw_core *mlxsw_core, char *mbox, 262 struct mlxsw_res *res); 263 264 #define MLXSW_CONFIG_PROFILE_SWID_COUNT 8 265 266 struct mlxsw_swid_config { 267 u8 used_type:1, 268 used_properties:1; 269 u8 type; 270 u8 properties; 271 }; 272 273 struct mlxsw_config_profile { 274 u16 used_max_vepa_channels:1, 275 used_max_mid:1, 276 used_max_pgt:1, 277 used_max_system_port:1, 278 used_max_vlan_groups:1, 279 used_max_regions:1, 280 used_flood_tables:1, 281 used_flood_mode:1, 282 used_max_ib_mc:1, 283 used_max_pkey:1, 284 used_ar_sec:1, 285 used_adaptive_routing_group_cap:1, 286 used_kvd_sizes:1, 287 used_kvh_xlt_cache_mode:1; 288 u8 max_vepa_channels; 289 u16 max_mid; 290 u16 max_pgt; 291 u16 max_system_port; 292 u16 max_vlan_groups; 293 u16 max_regions; 294 u8 max_flood_tables; 295 u8 max_vid_flood_tables; 296 u8 flood_mode; 297 u8 max_fid_offset_flood_tables; 298 u16 fid_offset_flood_table_size; 299 u8 max_fid_flood_tables; 300 u16 fid_flood_table_size; 301 u16 max_ib_mc; 302 u16 max_pkey; 303 u8 ar_sec; 304 u16 adaptive_routing_group_cap; 305 u8 arn; 306 u32 kvd_linear_size; 307 u8 kvd_hash_single_parts; 308 u8 kvd_hash_double_parts; 309 u8 kvh_xlt_cache_mode; 310 struct mlxsw_swid_config swid_config[MLXSW_CONFIG_PROFILE_SWID_COUNT]; 311 }; 312 313 struct mlxsw_driver { 314 struct list_head list; 315 const char *kind; 316 size_t priv_size; 317 const struct mlxsw_fw_rev *fw_req_rev; 318 const char *fw_filename; 319 int (*init)(struct mlxsw_core *mlxsw_core, 320 const struct mlxsw_bus_info *mlxsw_bus_info, 321 struct netlink_ext_ack *extack); 322 void (*fini)(struct mlxsw_core *mlxsw_core); 323 int (*port_type_set)(struct mlxsw_core *mlxsw_core, u16 local_port, 324 enum devlink_port_type new_type); 325 int (*port_split)(struct mlxsw_core *mlxsw_core, u16 local_port, 326 unsigned int count, struct netlink_ext_ack *extack); 327 int (*port_unsplit)(struct mlxsw_core *mlxsw_core, u16 local_port, 328 struct netlink_ext_ack *extack); 329 int (*sb_pool_get)(struct mlxsw_core *mlxsw_core, 330 unsigned int sb_index, u16 pool_index, 331 struct devlink_sb_pool_info *pool_info); 332 int (*sb_pool_set)(struct mlxsw_core *mlxsw_core, 333 unsigned int sb_index, u16 pool_index, u32 size, 334 enum devlink_sb_threshold_type threshold_type, 335 struct netlink_ext_ack *extack); 336 int (*sb_port_pool_get)(struct mlxsw_core_port *mlxsw_core_port, 337 unsigned int sb_index, u16 pool_index, 338 u32 *p_threshold); 339 int (*sb_port_pool_set)(struct mlxsw_core_port *mlxsw_core_port, 340 unsigned int sb_index, u16 pool_index, 341 u32 threshold, struct netlink_ext_ack *extack); 342 int (*sb_tc_pool_bind_get)(struct mlxsw_core_port *mlxsw_core_port, 343 unsigned int sb_index, u16 tc_index, 344 enum devlink_sb_pool_type pool_type, 345 u16 *p_pool_index, u32 *p_threshold); 346 int (*sb_tc_pool_bind_set)(struct mlxsw_core_port *mlxsw_core_port, 347 unsigned int sb_index, u16 tc_index, 348 enum devlink_sb_pool_type pool_type, 349 u16 pool_index, u32 threshold, 350 struct netlink_ext_ack *extack); 351 int (*sb_occ_snapshot)(struct mlxsw_core *mlxsw_core, 352 unsigned int sb_index); 353 int (*sb_occ_max_clear)(struct mlxsw_core *mlxsw_core, 354 unsigned int sb_index); 355 int (*sb_occ_port_pool_get)(struct mlxsw_core_port *mlxsw_core_port, 356 unsigned int sb_index, u16 pool_index, 357 u32 *p_cur, u32 *p_max); 358 int (*sb_occ_tc_port_bind_get)(struct mlxsw_core_port *mlxsw_core_port, 359 unsigned int sb_index, u16 tc_index, 360 enum devlink_sb_pool_type pool_type, 361 u32 *p_cur, u32 *p_max); 362 int (*trap_init)(struct mlxsw_core *mlxsw_core, 363 const struct devlink_trap *trap, void *trap_ctx); 364 void (*trap_fini)(struct mlxsw_core *mlxsw_core, 365 const struct devlink_trap *trap, void *trap_ctx); 366 int (*trap_action_set)(struct mlxsw_core *mlxsw_core, 367 const struct devlink_trap *trap, 368 enum devlink_trap_action action, 369 struct netlink_ext_ack *extack); 370 int (*trap_group_init)(struct mlxsw_core *mlxsw_core, 371 const struct devlink_trap_group *group); 372 int (*trap_group_set)(struct mlxsw_core *mlxsw_core, 373 const struct devlink_trap_group *group, 374 const struct devlink_trap_policer *policer, 375 struct netlink_ext_ack *extack); 376 int (*trap_policer_init)(struct mlxsw_core *mlxsw_core, 377 const struct devlink_trap_policer *policer); 378 void (*trap_policer_fini)(struct mlxsw_core *mlxsw_core, 379 const struct devlink_trap_policer *policer); 380 int (*trap_policer_set)(struct mlxsw_core *mlxsw_core, 381 const struct devlink_trap_policer *policer, 382 u64 rate, u64 burst, 383 struct netlink_ext_ack *extack); 384 int (*trap_policer_counter_get)(struct mlxsw_core *mlxsw_core, 385 const struct devlink_trap_policer *policer, 386 u64 *p_drops); 387 void (*txhdr_construct)(struct sk_buff *skb, 388 const struct mlxsw_tx_info *tx_info); 389 int (*resources_register)(struct mlxsw_core *mlxsw_core); 390 int (*kvd_sizes_get)(struct mlxsw_core *mlxsw_core, 391 const struct mlxsw_config_profile *profile, 392 u64 *p_single_size, u64 *p_double_size, 393 u64 *p_linear_size); 394 int (*params_register)(struct mlxsw_core *mlxsw_core); 395 void (*params_unregister)(struct mlxsw_core *mlxsw_core); 396 397 /* Notify a driver that a timestamped packet was transmitted. Driver 398 * is responsible for freeing the passed-in SKB. 399 */ 400 void (*ptp_transmitted)(struct mlxsw_core *mlxsw_core, 401 struct sk_buff *skb, u16 local_port); 402 403 u8 txhdr_len; 404 const struct mlxsw_config_profile *profile; 405 }; 406 407 int mlxsw_core_kvd_sizes_get(struct mlxsw_core *mlxsw_core, 408 const struct mlxsw_config_profile *profile, 409 u64 *p_single_size, u64 *p_double_size, 410 u64 *p_linear_size); 411 412 u32 mlxsw_core_read_frc_h(struct mlxsw_core *mlxsw_core); 413 u32 mlxsw_core_read_frc_l(struct mlxsw_core *mlxsw_core); 414 415 void mlxsw_core_emad_string_tlv_enable(struct mlxsw_core *mlxsw_core); 416 417 bool mlxsw_core_res_valid(struct mlxsw_core *mlxsw_core, 418 enum mlxsw_res_id res_id); 419 420 #define MLXSW_CORE_RES_VALID(mlxsw_core, short_res_id) \ 421 mlxsw_core_res_valid(mlxsw_core, MLXSW_RES_ID_##short_res_id) 422 423 u64 mlxsw_core_res_get(struct mlxsw_core *mlxsw_core, 424 enum mlxsw_res_id res_id); 425 426 #define MLXSW_CORE_RES_GET(mlxsw_core, short_res_id) \ 427 mlxsw_core_res_get(mlxsw_core, MLXSW_RES_ID_##short_res_id) 428 429 static inline struct net *mlxsw_core_net(struct mlxsw_core *mlxsw_core) 430 { 431 return devlink_net(priv_to_devlink(mlxsw_core)); 432 } 433 434 #define MLXSW_BUS_F_TXRX BIT(0) 435 #define MLXSW_BUS_F_RESET BIT(1) 436 437 struct mlxsw_bus { 438 const char *kind; 439 int (*init)(void *bus_priv, struct mlxsw_core *mlxsw_core, 440 const struct mlxsw_config_profile *profile, 441 struct mlxsw_res *res); 442 void (*fini)(void *bus_priv); 443 bool (*skb_transmit_busy)(void *bus_priv, 444 const struct mlxsw_tx_info *tx_info); 445 int (*skb_transmit)(void *bus_priv, struct sk_buff *skb, 446 const struct mlxsw_tx_info *tx_info); 447 int (*cmd_exec)(void *bus_priv, u16 opcode, u8 opcode_mod, 448 u32 in_mod, bool out_mbox_direct, 449 char *in_mbox, size_t in_mbox_size, 450 char *out_mbox, size_t out_mbox_size, 451 u8 *p_status); 452 u32 (*read_frc_h)(void *bus_priv); 453 u32 (*read_frc_l)(void *bus_priv); 454 u8 features; 455 }; 456 457 struct mlxsw_fw_rev { 458 u16 major; 459 u16 minor; 460 u16 subminor; 461 u16 can_reset_minor; 462 }; 463 464 #define MLXSW_BUS_INFO_XM_LOCAL_PORTS_MAX 4 465 466 struct mlxsw_bus_info { 467 const char *device_kind; 468 const char *device_name; 469 struct device *dev; 470 struct mlxsw_fw_rev fw_rev; 471 u8 vsd[MLXSW_CMD_BOARDINFO_VSD_LEN]; 472 u8 psid[MLXSW_CMD_BOARDINFO_PSID_LEN]; 473 u8 low_frequency:1, 474 read_frc_capable:1, 475 xm_exists:1; 476 u8 xm_local_ports_count; 477 u8 xm_local_ports[MLXSW_BUS_INFO_XM_LOCAL_PORTS_MAX]; 478 }; 479 480 struct mlxsw_hwmon; 481 482 #ifdef CONFIG_MLXSW_CORE_HWMON 483 484 int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core, 485 const struct mlxsw_bus_info *mlxsw_bus_info, 486 struct mlxsw_hwmon **p_hwmon); 487 void mlxsw_hwmon_fini(struct mlxsw_hwmon *mlxsw_hwmon); 488 489 #else 490 491 static inline int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core, 492 const struct mlxsw_bus_info *mlxsw_bus_info, 493 struct mlxsw_hwmon **p_hwmon) 494 { 495 return 0; 496 } 497 498 static inline void mlxsw_hwmon_fini(struct mlxsw_hwmon *mlxsw_hwmon) 499 { 500 } 501 502 #endif 503 504 struct mlxsw_thermal; 505 506 #ifdef CONFIG_MLXSW_CORE_THERMAL 507 508 int mlxsw_thermal_init(struct mlxsw_core *mlxsw_core, 509 const struct mlxsw_bus_info *mlxsw_bus_info, 510 struct mlxsw_thermal **p_thermal); 511 void mlxsw_thermal_fini(struct mlxsw_thermal *thermal); 512 513 #else 514 515 static inline int mlxsw_thermal_init(struct mlxsw_core *mlxsw_core, 516 const struct mlxsw_bus_info *mlxsw_bus_info, 517 struct mlxsw_thermal **p_thermal) 518 { 519 return 0; 520 } 521 522 static inline void mlxsw_thermal_fini(struct mlxsw_thermal *thermal) 523 { 524 } 525 526 #endif 527 528 enum mlxsw_devlink_param_id { 529 MLXSW_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, 530 MLXSW_DEVLINK_PARAM_ID_ACL_REGION_REHASH_INTERVAL, 531 }; 532 533 struct mlxsw_skb_cb { 534 union { 535 struct mlxsw_tx_info tx_info; 536 struct mlxsw_rx_md_info rx_md_info; 537 }; 538 }; 539 540 static inline struct mlxsw_skb_cb *mlxsw_skb_cb(struct sk_buff *skb) 541 { 542 BUILD_BUG_ON(sizeof(mlxsw_skb_cb) > sizeof(skb->cb)); 543 return (struct mlxsw_skb_cb *) skb->cb; 544 } 545 546 #endif 547