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