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