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 bool mlxsw_core_port_is_xm(const struct mlxsw_core *mlxsw_core, u8 local_port); 227 struct mlxsw_env *mlxsw_core_env(const struct mlxsw_core *mlxsw_core); 228 bool mlxsw_core_is_initialized(const struct mlxsw_core *mlxsw_core); 229 int mlxsw_core_module_max_width(struct mlxsw_core *mlxsw_core, u8 module); 230 231 int mlxsw_core_schedule_dw(struct delayed_work *dwork, unsigned long delay); 232 bool mlxsw_core_schedule_work(struct work_struct *work); 233 void mlxsw_core_flush_owq(void); 234 int mlxsw_core_resources_query(struct mlxsw_core *mlxsw_core, char *mbox, 235 struct mlxsw_res *res); 236 237 #define MLXSW_CONFIG_PROFILE_SWID_COUNT 8 238 239 struct mlxsw_swid_config { 240 u8 used_type:1, 241 used_properties:1; 242 u8 type; 243 u8 properties; 244 }; 245 246 struct mlxsw_config_profile { 247 u16 used_max_vepa_channels:1, 248 used_max_mid:1, 249 used_max_pgt:1, 250 used_max_system_port:1, 251 used_max_vlan_groups:1, 252 used_max_regions:1, 253 used_flood_tables:1, 254 used_flood_mode:1, 255 used_max_ib_mc:1, 256 used_max_pkey:1, 257 used_ar_sec:1, 258 used_adaptive_routing_group_cap:1, 259 used_kvd_sizes:1, 260 used_kvh_xlt_cache_mode:1; 261 u8 max_vepa_channels; 262 u16 max_mid; 263 u16 max_pgt; 264 u16 max_system_port; 265 u16 max_vlan_groups; 266 u16 max_regions; 267 u8 max_flood_tables; 268 u8 max_vid_flood_tables; 269 u8 flood_mode; 270 u8 max_fid_offset_flood_tables; 271 u16 fid_offset_flood_table_size; 272 u8 max_fid_flood_tables; 273 u16 fid_flood_table_size; 274 u16 max_ib_mc; 275 u16 max_pkey; 276 u8 ar_sec; 277 u16 adaptive_routing_group_cap; 278 u8 arn; 279 u32 kvd_linear_size; 280 u8 kvd_hash_single_parts; 281 u8 kvd_hash_double_parts; 282 u8 kvh_xlt_cache_mode; 283 struct mlxsw_swid_config swid_config[MLXSW_CONFIG_PROFILE_SWID_COUNT]; 284 }; 285 286 struct mlxsw_driver { 287 struct list_head list; 288 const char *kind; 289 size_t priv_size; 290 const struct mlxsw_fw_rev *fw_req_rev; 291 const char *fw_filename; 292 int (*init)(struct mlxsw_core *mlxsw_core, 293 const struct mlxsw_bus_info *mlxsw_bus_info, 294 struct netlink_ext_ack *extack); 295 void (*fini)(struct mlxsw_core *mlxsw_core); 296 int (*basic_trap_groups_set)(struct mlxsw_core *mlxsw_core); 297 int (*port_type_set)(struct mlxsw_core *mlxsw_core, u8 local_port, 298 enum devlink_port_type new_type); 299 int (*port_split)(struct mlxsw_core *mlxsw_core, u8 local_port, 300 unsigned int count, struct netlink_ext_ack *extack); 301 int (*port_unsplit)(struct mlxsw_core *mlxsw_core, u8 local_port, 302 struct netlink_ext_ack *extack); 303 int (*sb_pool_get)(struct mlxsw_core *mlxsw_core, 304 unsigned int sb_index, u16 pool_index, 305 struct devlink_sb_pool_info *pool_info); 306 int (*sb_pool_set)(struct mlxsw_core *mlxsw_core, 307 unsigned int sb_index, u16 pool_index, u32 size, 308 enum devlink_sb_threshold_type threshold_type, 309 struct netlink_ext_ack *extack); 310 int (*sb_port_pool_get)(struct mlxsw_core_port *mlxsw_core_port, 311 unsigned int sb_index, u16 pool_index, 312 u32 *p_threshold); 313 int (*sb_port_pool_set)(struct mlxsw_core_port *mlxsw_core_port, 314 unsigned int sb_index, u16 pool_index, 315 u32 threshold, struct netlink_ext_ack *extack); 316 int (*sb_tc_pool_bind_get)(struct mlxsw_core_port *mlxsw_core_port, 317 unsigned int sb_index, u16 tc_index, 318 enum devlink_sb_pool_type pool_type, 319 u16 *p_pool_index, u32 *p_threshold); 320 int (*sb_tc_pool_bind_set)(struct mlxsw_core_port *mlxsw_core_port, 321 unsigned int sb_index, u16 tc_index, 322 enum devlink_sb_pool_type pool_type, 323 u16 pool_index, u32 threshold, 324 struct netlink_ext_ack *extack); 325 int (*sb_occ_snapshot)(struct mlxsw_core *mlxsw_core, 326 unsigned int sb_index); 327 int (*sb_occ_max_clear)(struct mlxsw_core *mlxsw_core, 328 unsigned int sb_index); 329 int (*sb_occ_port_pool_get)(struct mlxsw_core_port *mlxsw_core_port, 330 unsigned int sb_index, u16 pool_index, 331 u32 *p_cur, u32 *p_max); 332 int (*sb_occ_tc_port_bind_get)(struct mlxsw_core_port *mlxsw_core_port, 333 unsigned int sb_index, u16 tc_index, 334 enum devlink_sb_pool_type pool_type, 335 u32 *p_cur, u32 *p_max); 336 int (*trap_init)(struct mlxsw_core *mlxsw_core, 337 const struct devlink_trap *trap, void *trap_ctx); 338 void (*trap_fini)(struct mlxsw_core *mlxsw_core, 339 const struct devlink_trap *trap, void *trap_ctx); 340 int (*trap_action_set)(struct mlxsw_core *mlxsw_core, 341 const struct devlink_trap *trap, 342 enum devlink_trap_action action, 343 struct netlink_ext_ack *extack); 344 int (*trap_group_init)(struct mlxsw_core *mlxsw_core, 345 const struct devlink_trap_group *group); 346 int (*trap_group_set)(struct mlxsw_core *mlxsw_core, 347 const struct devlink_trap_group *group, 348 const struct devlink_trap_policer *policer, 349 struct netlink_ext_ack *extack); 350 int (*trap_policer_init)(struct mlxsw_core *mlxsw_core, 351 const struct devlink_trap_policer *policer); 352 void (*trap_policer_fini)(struct mlxsw_core *mlxsw_core, 353 const struct devlink_trap_policer *policer); 354 int (*trap_policer_set)(struct mlxsw_core *mlxsw_core, 355 const struct devlink_trap_policer *policer, 356 u64 rate, u64 burst, 357 struct netlink_ext_ack *extack); 358 int (*trap_policer_counter_get)(struct mlxsw_core *mlxsw_core, 359 const struct devlink_trap_policer *policer, 360 u64 *p_drops); 361 void (*txhdr_construct)(struct sk_buff *skb, 362 const struct mlxsw_tx_info *tx_info); 363 int (*resources_register)(struct mlxsw_core *mlxsw_core); 364 int (*kvd_sizes_get)(struct mlxsw_core *mlxsw_core, 365 const struct mlxsw_config_profile *profile, 366 u64 *p_single_size, u64 *p_double_size, 367 u64 *p_linear_size); 368 int (*params_register)(struct mlxsw_core *mlxsw_core); 369 void (*params_unregister)(struct mlxsw_core *mlxsw_core); 370 371 /* Notify a driver that a timestamped packet was transmitted. Driver 372 * is responsible for freeing the passed-in SKB. 373 */ 374 void (*ptp_transmitted)(struct mlxsw_core *mlxsw_core, 375 struct sk_buff *skb, u8 local_port); 376 377 u8 txhdr_len; 378 const struct mlxsw_config_profile *profile; 379 bool res_query_enabled; 380 bool fw_fatal_enabled; 381 bool temp_warn_enabled; 382 }; 383 384 int mlxsw_core_kvd_sizes_get(struct mlxsw_core *mlxsw_core, 385 const struct mlxsw_config_profile *profile, 386 u64 *p_single_size, u64 *p_double_size, 387 u64 *p_linear_size); 388 389 u32 mlxsw_core_read_frc_h(struct mlxsw_core *mlxsw_core); 390 u32 mlxsw_core_read_frc_l(struct mlxsw_core *mlxsw_core); 391 392 void mlxsw_core_emad_string_tlv_enable(struct mlxsw_core *mlxsw_core); 393 394 bool mlxsw_core_res_valid(struct mlxsw_core *mlxsw_core, 395 enum mlxsw_res_id res_id); 396 397 #define MLXSW_CORE_RES_VALID(mlxsw_core, short_res_id) \ 398 mlxsw_core_res_valid(mlxsw_core, MLXSW_RES_ID_##short_res_id) 399 400 u64 mlxsw_core_res_get(struct mlxsw_core *mlxsw_core, 401 enum mlxsw_res_id res_id); 402 403 #define MLXSW_CORE_RES_GET(mlxsw_core, short_res_id) \ 404 mlxsw_core_res_get(mlxsw_core, MLXSW_RES_ID_##short_res_id) 405 406 static inline struct net *mlxsw_core_net(struct mlxsw_core *mlxsw_core) 407 { 408 return devlink_net(priv_to_devlink(mlxsw_core)); 409 } 410 411 #define MLXSW_BUS_F_TXRX BIT(0) 412 #define MLXSW_BUS_F_RESET BIT(1) 413 414 struct mlxsw_bus { 415 const char *kind; 416 int (*init)(void *bus_priv, struct mlxsw_core *mlxsw_core, 417 const struct mlxsw_config_profile *profile, 418 struct mlxsw_res *res); 419 void (*fini)(void *bus_priv); 420 bool (*skb_transmit_busy)(void *bus_priv, 421 const struct mlxsw_tx_info *tx_info); 422 int (*skb_transmit)(void *bus_priv, struct sk_buff *skb, 423 const struct mlxsw_tx_info *tx_info); 424 int (*cmd_exec)(void *bus_priv, u16 opcode, u8 opcode_mod, 425 u32 in_mod, bool out_mbox_direct, 426 char *in_mbox, size_t in_mbox_size, 427 char *out_mbox, size_t out_mbox_size, 428 u8 *p_status); 429 u32 (*read_frc_h)(void *bus_priv); 430 u32 (*read_frc_l)(void *bus_priv); 431 u8 features; 432 }; 433 434 struct mlxsw_fw_rev { 435 u16 major; 436 u16 minor; 437 u16 subminor; 438 u16 can_reset_minor; 439 }; 440 441 #define MLXSW_BUS_INFO_XM_LOCAL_PORTS_MAX 4 442 443 struct mlxsw_bus_info { 444 const char *device_kind; 445 const char *device_name; 446 struct device *dev; 447 struct mlxsw_fw_rev fw_rev; 448 u8 vsd[MLXSW_CMD_BOARDINFO_VSD_LEN]; 449 u8 psid[MLXSW_CMD_BOARDINFO_PSID_LEN]; 450 u8 low_frequency:1, 451 read_frc_capable:1, 452 xm_exists:1; 453 u8 xm_local_ports_count; 454 u8 xm_local_ports[MLXSW_BUS_INFO_XM_LOCAL_PORTS_MAX]; 455 }; 456 457 struct mlxsw_hwmon; 458 459 #ifdef CONFIG_MLXSW_CORE_HWMON 460 461 int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core, 462 const struct mlxsw_bus_info *mlxsw_bus_info, 463 struct mlxsw_hwmon **p_hwmon); 464 void mlxsw_hwmon_fini(struct mlxsw_hwmon *mlxsw_hwmon); 465 466 #else 467 468 static inline int mlxsw_hwmon_init(struct mlxsw_core *mlxsw_core, 469 const struct mlxsw_bus_info *mlxsw_bus_info, 470 struct mlxsw_hwmon **p_hwmon) 471 { 472 return 0; 473 } 474 475 static inline void mlxsw_hwmon_fini(struct mlxsw_hwmon *mlxsw_hwmon) 476 { 477 } 478 479 #endif 480 481 struct mlxsw_thermal; 482 483 #ifdef CONFIG_MLXSW_CORE_THERMAL 484 485 int mlxsw_thermal_init(struct mlxsw_core *mlxsw_core, 486 const struct mlxsw_bus_info *mlxsw_bus_info, 487 struct mlxsw_thermal **p_thermal); 488 void mlxsw_thermal_fini(struct mlxsw_thermal *thermal); 489 490 #else 491 492 static inline int mlxsw_thermal_init(struct mlxsw_core *mlxsw_core, 493 const struct mlxsw_bus_info *mlxsw_bus_info, 494 struct mlxsw_thermal **p_thermal) 495 { 496 return 0; 497 } 498 499 static inline void mlxsw_thermal_fini(struct mlxsw_thermal *thermal) 500 { 501 } 502 503 #endif 504 505 enum mlxsw_devlink_param_id { 506 MLXSW_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX, 507 MLXSW_DEVLINK_PARAM_ID_ACL_REGION_REHASH_INTERVAL, 508 }; 509 510 struct mlxsw_skb_cb { 511 union { 512 struct mlxsw_tx_info tx_info; 513 u32 cookie_index; /* Only used during receive */ 514 }; 515 }; 516 517 static inline struct mlxsw_skb_cb *mlxsw_skb_cb(struct sk_buff *skb) 518 { 519 BUILD_BUG_ON(sizeof(mlxsw_skb_cb) > sizeof(skb->cb)); 520 return (struct mlxsw_skb_cb *) skb->cb; 521 } 522 523 #endif 524