1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB 2 /* Copyright (c) 2019 Mellanox Technologies */ 3 4 #include <devlink.h> 5 6 #include "mlx5_core.h" 7 #include "fw_reset.h" 8 #include "fs_core.h" 9 #include "eswitch.h" 10 #include "esw/qos.h" 11 #include "sf/dev/dev.h" 12 #include "sf/sf.h" 13 14 static int mlx5_devlink_flash_update(struct devlink *devlink, 15 struct devlink_flash_update_params *params, 16 struct netlink_ext_ack *extack) 17 { 18 struct mlx5_core_dev *dev = devlink_priv(devlink); 19 20 return mlx5_firmware_flash(dev, params->fw, extack); 21 } 22 23 static u8 mlx5_fw_ver_major(u32 version) 24 { 25 return (version >> 24) & 0xff; 26 } 27 28 static u8 mlx5_fw_ver_minor(u32 version) 29 { 30 return (version >> 16) & 0xff; 31 } 32 33 static u16 mlx5_fw_ver_subminor(u32 version) 34 { 35 return version & 0xffff; 36 } 37 38 #define DEVLINK_FW_STRING_LEN 32 39 40 static int 41 mlx5_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req, 42 struct netlink_ext_ack *extack) 43 { 44 struct mlx5_core_dev *dev = devlink_priv(devlink); 45 char version_str[DEVLINK_FW_STRING_LEN]; 46 u32 running_fw, stored_fw; 47 int err; 48 49 err = devlink_info_driver_name_put(req, KBUILD_MODNAME); 50 if (err) 51 return err; 52 53 err = devlink_info_version_fixed_put(req, "fw.psid", dev->board_id); 54 if (err) 55 return err; 56 57 err = mlx5_fw_version_query(dev, &running_fw, &stored_fw); 58 if (err) 59 return err; 60 61 snprintf(version_str, sizeof(version_str), "%d.%d.%04d", 62 mlx5_fw_ver_major(running_fw), mlx5_fw_ver_minor(running_fw), 63 mlx5_fw_ver_subminor(running_fw)); 64 err = devlink_info_version_running_put(req, "fw.version", version_str); 65 if (err) 66 return err; 67 err = devlink_info_version_running_put(req, 68 DEVLINK_INFO_VERSION_GENERIC_FW, 69 version_str); 70 if (err) 71 return err; 72 73 /* no pending version, return running (stored) version */ 74 if (stored_fw == 0) 75 stored_fw = running_fw; 76 77 snprintf(version_str, sizeof(version_str), "%d.%d.%04d", 78 mlx5_fw_ver_major(stored_fw), mlx5_fw_ver_minor(stored_fw), 79 mlx5_fw_ver_subminor(stored_fw)); 80 err = devlink_info_version_stored_put(req, "fw.version", version_str); 81 if (err) 82 return err; 83 return devlink_info_version_stored_put(req, 84 DEVLINK_INFO_VERSION_GENERIC_FW, 85 version_str); 86 } 87 88 static int mlx5_devlink_reload_fw_activate(struct devlink *devlink, struct netlink_ext_ack *extack) 89 { 90 struct mlx5_core_dev *dev = devlink_priv(devlink); 91 u8 reset_level, reset_type, net_port_alive; 92 int err; 93 94 err = mlx5_fw_reset_query(dev, &reset_level, &reset_type); 95 if (err) 96 return err; 97 if (!(reset_level & MLX5_MFRL_REG_RESET_LEVEL3)) { 98 NL_SET_ERR_MSG_MOD(extack, "FW activate requires reboot"); 99 return -EINVAL; 100 } 101 102 net_port_alive = !!(reset_type & MLX5_MFRL_REG_RESET_TYPE_NET_PORT_ALIVE); 103 err = mlx5_fw_reset_set_reset_sync(dev, net_port_alive, extack); 104 if (err) 105 return err; 106 107 return mlx5_fw_reset_wait_reset_done(dev); 108 } 109 110 static int mlx5_devlink_trigger_fw_live_patch(struct devlink *devlink, 111 struct netlink_ext_ack *extack) 112 { 113 struct mlx5_core_dev *dev = devlink_priv(devlink); 114 u8 reset_level; 115 int err; 116 117 err = mlx5_fw_reset_query(dev, &reset_level, NULL); 118 if (err) 119 return err; 120 if (!(reset_level & MLX5_MFRL_REG_RESET_LEVEL0)) { 121 NL_SET_ERR_MSG_MOD(extack, 122 "FW upgrade to the stored FW can't be done by FW live patching"); 123 return -EINVAL; 124 } 125 126 return mlx5_fw_reset_set_live_patch(dev); 127 } 128 129 static int mlx5_devlink_reload_down(struct devlink *devlink, bool netns_change, 130 enum devlink_reload_action action, 131 enum devlink_reload_limit limit, 132 struct netlink_ext_ack *extack) 133 { 134 struct mlx5_core_dev *dev = devlink_priv(devlink); 135 struct pci_dev *pdev = dev->pdev; 136 bool sf_dev_allocated; 137 138 sf_dev_allocated = mlx5_sf_dev_allocated(dev); 139 if (sf_dev_allocated) { 140 /* Reload results in deleting SF device which further results in 141 * unregistering devlink instance while holding devlink_mutext. 142 * Hence, do not support reload. 143 */ 144 NL_SET_ERR_MSG_MOD(extack, "reload is unsupported when SFs are allocated"); 145 return -EOPNOTSUPP; 146 } 147 148 if (mlx5_lag_is_active(dev)) { 149 NL_SET_ERR_MSG_MOD(extack, "reload is unsupported in Lag mode"); 150 return -EOPNOTSUPP; 151 } 152 153 if (pci_num_vf(pdev)) { 154 NL_SET_ERR_MSG_MOD(extack, "reload while VFs are present is unfavorable"); 155 } 156 157 switch (action) { 158 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: 159 mlx5_unload_one(dev); 160 return 0; 161 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: 162 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET) 163 return mlx5_devlink_trigger_fw_live_patch(devlink, extack); 164 return mlx5_devlink_reload_fw_activate(devlink, extack); 165 default: 166 /* Unsupported action should not get to this function */ 167 WARN_ON(1); 168 return -EOPNOTSUPP; 169 } 170 } 171 172 static int mlx5_devlink_reload_up(struct devlink *devlink, enum devlink_reload_action action, 173 enum devlink_reload_limit limit, u32 *actions_performed, 174 struct netlink_ext_ack *extack) 175 { 176 struct mlx5_core_dev *dev = devlink_priv(devlink); 177 178 *actions_performed = BIT(action); 179 switch (action) { 180 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT: 181 return mlx5_load_one(dev, false); 182 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE: 183 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET) 184 break; 185 /* On fw_activate action, also driver is reloaded and reinit performed */ 186 *actions_performed |= BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT); 187 return mlx5_load_one(dev, false); 188 default: 189 /* Unsupported action should not get to this function */ 190 WARN_ON(1); 191 return -EOPNOTSUPP; 192 } 193 194 return 0; 195 } 196 197 static struct mlx5_devlink_trap *mlx5_find_trap_by_id(struct mlx5_core_dev *dev, int trap_id) 198 { 199 struct mlx5_devlink_trap *dl_trap; 200 201 list_for_each_entry(dl_trap, &dev->priv.traps, list) 202 if (dl_trap->trap.id == trap_id) 203 return dl_trap; 204 205 return NULL; 206 } 207 208 static int mlx5_devlink_trap_init(struct devlink *devlink, const struct devlink_trap *trap, 209 void *trap_ctx) 210 { 211 struct mlx5_core_dev *dev = devlink_priv(devlink); 212 struct mlx5_devlink_trap *dl_trap; 213 214 dl_trap = kzalloc(sizeof(*dl_trap), GFP_KERNEL); 215 if (!dl_trap) 216 return -ENOMEM; 217 218 dl_trap->trap.id = trap->id; 219 dl_trap->trap.action = DEVLINK_TRAP_ACTION_DROP; 220 dl_trap->item = trap_ctx; 221 222 if (mlx5_find_trap_by_id(dev, trap->id)) { 223 kfree(dl_trap); 224 mlx5_core_err(dev, "Devlink trap: Trap 0x%x already found", trap->id); 225 return -EEXIST; 226 } 227 228 list_add_tail(&dl_trap->list, &dev->priv.traps); 229 return 0; 230 } 231 232 static void mlx5_devlink_trap_fini(struct devlink *devlink, const struct devlink_trap *trap, 233 void *trap_ctx) 234 { 235 struct mlx5_core_dev *dev = devlink_priv(devlink); 236 struct mlx5_devlink_trap *dl_trap; 237 238 dl_trap = mlx5_find_trap_by_id(dev, trap->id); 239 if (!dl_trap) { 240 mlx5_core_err(dev, "Devlink trap: Missing trap id 0x%x", trap->id); 241 return; 242 } 243 list_del(&dl_trap->list); 244 kfree(dl_trap); 245 } 246 247 static int mlx5_devlink_trap_action_set(struct devlink *devlink, 248 const struct devlink_trap *trap, 249 enum devlink_trap_action action, 250 struct netlink_ext_ack *extack) 251 { 252 struct mlx5_core_dev *dev = devlink_priv(devlink); 253 enum devlink_trap_action action_orig; 254 struct mlx5_devlink_trap *dl_trap; 255 int err = 0; 256 257 if (is_mdev_switchdev_mode(dev)) { 258 NL_SET_ERR_MSG_MOD(extack, "Devlink traps can't be set in switchdev mode"); 259 return -EOPNOTSUPP; 260 } 261 262 dl_trap = mlx5_find_trap_by_id(dev, trap->id); 263 if (!dl_trap) { 264 mlx5_core_err(dev, "Devlink trap: Set action on invalid trap id 0x%x", trap->id); 265 err = -EINVAL; 266 goto out; 267 } 268 269 if (action != DEVLINK_TRAP_ACTION_DROP && action != DEVLINK_TRAP_ACTION_TRAP) { 270 err = -EOPNOTSUPP; 271 goto out; 272 } 273 274 if (action == dl_trap->trap.action) 275 goto out; 276 277 action_orig = dl_trap->trap.action; 278 dl_trap->trap.action = action; 279 err = mlx5_blocking_notifier_call_chain(dev, MLX5_DRIVER_EVENT_TYPE_TRAP, 280 &dl_trap->trap); 281 if (err) 282 dl_trap->trap.action = action_orig; 283 out: 284 return err; 285 } 286 287 static const struct devlink_ops mlx5_devlink_ops = { 288 #ifdef CONFIG_MLX5_ESWITCH 289 .eswitch_mode_set = mlx5_devlink_eswitch_mode_set, 290 .eswitch_mode_get = mlx5_devlink_eswitch_mode_get, 291 .eswitch_inline_mode_set = mlx5_devlink_eswitch_inline_mode_set, 292 .eswitch_inline_mode_get = mlx5_devlink_eswitch_inline_mode_get, 293 .eswitch_encap_mode_set = mlx5_devlink_eswitch_encap_mode_set, 294 .eswitch_encap_mode_get = mlx5_devlink_eswitch_encap_mode_get, 295 .port_function_hw_addr_get = mlx5_devlink_port_function_hw_addr_get, 296 .port_function_hw_addr_set = mlx5_devlink_port_function_hw_addr_set, 297 .rate_leaf_tx_share_set = mlx5_esw_devlink_rate_leaf_tx_share_set, 298 .rate_leaf_tx_max_set = mlx5_esw_devlink_rate_leaf_tx_max_set, 299 .rate_node_tx_share_set = mlx5_esw_devlink_rate_node_tx_share_set, 300 .rate_node_tx_max_set = mlx5_esw_devlink_rate_node_tx_max_set, 301 .rate_node_new = mlx5_esw_devlink_rate_node_new, 302 .rate_node_del = mlx5_esw_devlink_rate_node_del, 303 .rate_leaf_parent_set = mlx5_esw_devlink_rate_parent_set, 304 #endif 305 #ifdef CONFIG_MLX5_SF_MANAGER 306 .port_new = mlx5_devlink_sf_port_new, 307 .port_del = mlx5_devlink_sf_port_del, 308 .port_fn_state_get = mlx5_devlink_sf_port_fn_state_get, 309 .port_fn_state_set = mlx5_devlink_sf_port_fn_state_set, 310 #endif 311 .flash_update = mlx5_devlink_flash_update, 312 .info_get = mlx5_devlink_info_get, 313 .reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) | 314 BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE), 315 .reload_limits = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET), 316 .reload_down = mlx5_devlink_reload_down, 317 .reload_up = mlx5_devlink_reload_up, 318 .trap_init = mlx5_devlink_trap_init, 319 .trap_fini = mlx5_devlink_trap_fini, 320 .trap_action_set = mlx5_devlink_trap_action_set, 321 }; 322 323 void mlx5_devlink_trap_report(struct mlx5_core_dev *dev, int trap_id, struct sk_buff *skb, 324 struct devlink_port *dl_port) 325 { 326 struct devlink *devlink = priv_to_devlink(dev); 327 struct mlx5_devlink_trap *dl_trap; 328 329 dl_trap = mlx5_find_trap_by_id(dev, trap_id); 330 if (!dl_trap) { 331 mlx5_core_err(dev, "Devlink trap: Report on invalid trap id 0x%x", trap_id); 332 return; 333 } 334 335 if (dl_trap->trap.action != DEVLINK_TRAP_ACTION_TRAP) { 336 mlx5_core_dbg(dev, "Devlink trap: Trap id %d has action %d", trap_id, 337 dl_trap->trap.action); 338 return; 339 } 340 devlink_trap_report(devlink, skb, dl_trap->item, dl_port, NULL); 341 } 342 343 int mlx5_devlink_trap_get_num_active(struct mlx5_core_dev *dev) 344 { 345 struct mlx5_devlink_trap *dl_trap; 346 int count = 0; 347 348 list_for_each_entry(dl_trap, &dev->priv.traps, list) 349 if (dl_trap->trap.action == DEVLINK_TRAP_ACTION_TRAP) 350 count++; 351 352 return count; 353 } 354 355 int mlx5_devlink_traps_get_action(struct mlx5_core_dev *dev, int trap_id, 356 enum devlink_trap_action *action) 357 { 358 struct mlx5_devlink_trap *dl_trap; 359 360 dl_trap = mlx5_find_trap_by_id(dev, trap_id); 361 if (!dl_trap) { 362 mlx5_core_err(dev, "Devlink trap: Get action on invalid trap id 0x%x", 363 trap_id); 364 return -EINVAL; 365 } 366 367 *action = dl_trap->trap.action; 368 return 0; 369 } 370 371 struct devlink *mlx5_devlink_alloc(struct device *dev) 372 { 373 return devlink_alloc(&mlx5_devlink_ops, sizeof(struct mlx5_core_dev), 374 dev); 375 } 376 377 void mlx5_devlink_free(struct devlink *devlink) 378 { 379 devlink_free(devlink); 380 } 381 382 static int mlx5_devlink_fs_mode_validate(struct devlink *devlink, u32 id, 383 union devlink_param_value val, 384 struct netlink_ext_ack *extack) 385 { 386 struct mlx5_core_dev *dev = devlink_priv(devlink); 387 char *value = val.vstr; 388 int err = 0; 389 390 if (!strcmp(value, "dmfs")) { 391 return 0; 392 } else if (!strcmp(value, "smfs")) { 393 u8 eswitch_mode; 394 bool smfs_cap; 395 396 eswitch_mode = mlx5_eswitch_mode(dev); 397 smfs_cap = mlx5_fs_dr_is_supported(dev); 398 399 if (!smfs_cap) { 400 err = -EOPNOTSUPP; 401 NL_SET_ERR_MSG_MOD(extack, 402 "Software managed steering is not supported by current device"); 403 } 404 405 else if (eswitch_mode == MLX5_ESWITCH_OFFLOADS) { 406 NL_SET_ERR_MSG_MOD(extack, 407 "Software managed steering is not supported when eswitch offloads enabled."); 408 err = -EOPNOTSUPP; 409 } 410 } else { 411 NL_SET_ERR_MSG_MOD(extack, 412 "Bad parameter: supported values are [\"dmfs\", \"smfs\"]"); 413 err = -EINVAL; 414 } 415 416 return err; 417 } 418 419 static int mlx5_devlink_fs_mode_set(struct devlink *devlink, u32 id, 420 struct devlink_param_gset_ctx *ctx) 421 { 422 struct mlx5_core_dev *dev = devlink_priv(devlink); 423 enum mlx5_flow_steering_mode mode; 424 425 if (!strcmp(ctx->val.vstr, "smfs")) 426 mode = MLX5_FLOW_STEERING_MODE_SMFS; 427 else 428 mode = MLX5_FLOW_STEERING_MODE_DMFS; 429 dev->priv.steering->mode = mode; 430 431 return 0; 432 } 433 434 static int mlx5_devlink_fs_mode_get(struct devlink *devlink, u32 id, 435 struct devlink_param_gset_ctx *ctx) 436 { 437 struct mlx5_core_dev *dev = devlink_priv(devlink); 438 439 if (dev->priv.steering->mode == MLX5_FLOW_STEERING_MODE_SMFS) 440 strcpy(ctx->val.vstr, "smfs"); 441 else 442 strcpy(ctx->val.vstr, "dmfs"); 443 return 0; 444 } 445 446 static int mlx5_devlink_enable_roce_validate(struct devlink *devlink, u32 id, 447 union devlink_param_value val, 448 struct netlink_ext_ack *extack) 449 { 450 struct mlx5_core_dev *dev = devlink_priv(devlink); 451 bool new_state = val.vbool; 452 453 if (new_state && !MLX5_CAP_GEN(dev, roce) && 454 !MLX5_CAP_GEN(dev, roce_rw_supported)) { 455 NL_SET_ERR_MSG_MOD(extack, "Device doesn't support RoCE"); 456 return -EOPNOTSUPP; 457 } 458 if (mlx5_core_is_mp_slave(dev) || mlx5_lag_is_active(dev)) { 459 NL_SET_ERR_MSG_MOD(extack, "Multi port slave/Lag device can't configure RoCE"); 460 return -EOPNOTSUPP; 461 } 462 463 return 0; 464 } 465 466 #ifdef CONFIG_MLX5_ESWITCH 467 static int mlx5_devlink_large_group_num_validate(struct devlink *devlink, u32 id, 468 union devlink_param_value val, 469 struct netlink_ext_ack *extack) 470 { 471 int group_num = val.vu32; 472 473 if (group_num < 1 || group_num > 1024) { 474 NL_SET_ERR_MSG_MOD(extack, 475 "Unsupported group number, supported range is 1-1024"); 476 return -EOPNOTSUPP; 477 } 478 479 return 0; 480 } 481 482 static int mlx5_devlink_esw_port_metadata_set(struct devlink *devlink, u32 id, 483 struct devlink_param_gset_ctx *ctx) 484 { 485 struct mlx5_core_dev *dev = devlink_priv(devlink); 486 487 if (!MLX5_ESWITCH_MANAGER(dev)) 488 return -EOPNOTSUPP; 489 490 return mlx5_esw_offloads_vport_metadata_set(dev->priv.eswitch, ctx->val.vbool); 491 } 492 493 static int mlx5_devlink_esw_port_metadata_get(struct devlink *devlink, u32 id, 494 struct devlink_param_gset_ctx *ctx) 495 { 496 struct mlx5_core_dev *dev = devlink_priv(devlink); 497 498 if (!MLX5_ESWITCH_MANAGER(dev)) 499 return -EOPNOTSUPP; 500 501 ctx->val.vbool = mlx5_eswitch_vport_match_metadata_enabled(dev->priv.eswitch); 502 return 0; 503 } 504 505 static int mlx5_devlink_esw_port_metadata_validate(struct devlink *devlink, u32 id, 506 union devlink_param_value val, 507 struct netlink_ext_ack *extack) 508 { 509 struct mlx5_core_dev *dev = devlink_priv(devlink); 510 u8 esw_mode; 511 512 if (!MLX5_ESWITCH_MANAGER(dev)) { 513 NL_SET_ERR_MSG_MOD(extack, "E-Switch is unsupported"); 514 return -EOPNOTSUPP; 515 } 516 esw_mode = mlx5_eswitch_mode(dev); 517 if (esw_mode == MLX5_ESWITCH_OFFLOADS) { 518 NL_SET_ERR_MSG_MOD(extack, 519 "E-Switch must either disabled or non switchdev mode"); 520 return -EBUSY; 521 } 522 return 0; 523 } 524 525 #endif 526 527 static int mlx5_devlink_enable_remote_dev_reset_set(struct devlink *devlink, u32 id, 528 struct devlink_param_gset_ctx *ctx) 529 { 530 struct mlx5_core_dev *dev = devlink_priv(devlink); 531 532 mlx5_fw_reset_enable_remote_dev_reset_set(dev, ctx->val.vbool); 533 return 0; 534 } 535 536 static int mlx5_devlink_enable_remote_dev_reset_get(struct devlink *devlink, u32 id, 537 struct devlink_param_gset_ctx *ctx) 538 { 539 struct mlx5_core_dev *dev = devlink_priv(devlink); 540 541 ctx->val.vbool = mlx5_fw_reset_enable_remote_dev_reset_get(dev); 542 return 0; 543 } 544 545 static int mlx5_devlink_eq_depth_validate(struct devlink *devlink, u32 id, 546 union devlink_param_value val, 547 struct netlink_ext_ack *extack) 548 { 549 return (val.vu16 >= 64 && val.vu16 <= 4096) ? 0 : -EINVAL; 550 } 551 552 static const struct devlink_param mlx5_devlink_params[] = { 553 DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_FLOW_STEERING_MODE, 554 "flow_steering_mode", DEVLINK_PARAM_TYPE_STRING, 555 BIT(DEVLINK_PARAM_CMODE_RUNTIME), 556 mlx5_devlink_fs_mode_get, mlx5_devlink_fs_mode_set, 557 mlx5_devlink_fs_mode_validate), 558 DEVLINK_PARAM_GENERIC(ENABLE_ROCE, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), 559 NULL, NULL, mlx5_devlink_enable_roce_validate), 560 #ifdef CONFIG_MLX5_ESWITCH 561 DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM, 562 "fdb_large_groups", DEVLINK_PARAM_TYPE_U32, 563 BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), 564 NULL, NULL, 565 mlx5_devlink_large_group_num_validate), 566 DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_ESW_PORT_METADATA, 567 "esw_port_metadata", DEVLINK_PARAM_TYPE_BOOL, 568 BIT(DEVLINK_PARAM_CMODE_RUNTIME), 569 mlx5_devlink_esw_port_metadata_get, 570 mlx5_devlink_esw_port_metadata_set, 571 mlx5_devlink_esw_port_metadata_validate), 572 #endif 573 DEVLINK_PARAM_GENERIC(ENABLE_REMOTE_DEV_RESET, BIT(DEVLINK_PARAM_CMODE_RUNTIME), 574 mlx5_devlink_enable_remote_dev_reset_get, 575 mlx5_devlink_enable_remote_dev_reset_set, NULL), 576 DEVLINK_PARAM_GENERIC(IO_EQ_SIZE, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), 577 NULL, NULL, mlx5_devlink_eq_depth_validate), 578 DEVLINK_PARAM_GENERIC(EVENT_EQ_SIZE, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), 579 NULL, NULL, mlx5_devlink_eq_depth_validate), 580 }; 581 582 static void mlx5_devlink_set_params_init_values(struct devlink *devlink) 583 { 584 struct mlx5_core_dev *dev = devlink_priv(devlink); 585 union devlink_param_value value; 586 587 value.vbool = MLX5_CAP_GEN(dev, roce); 588 devlink_param_driverinit_value_set(devlink, 589 DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE, 590 value); 591 592 #ifdef CONFIG_MLX5_ESWITCH 593 value.vu32 = ESW_OFFLOADS_DEFAULT_NUM_GROUPS; 594 devlink_param_driverinit_value_set(devlink, 595 MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM, 596 value); 597 #endif 598 599 value.vu32 = MLX5_COMP_EQ_SIZE; 600 devlink_param_driverinit_value_set(devlink, 601 DEVLINK_PARAM_GENERIC_ID_IO_EQ_SIZE, 602 value); 603 604 value.vu32 = MLX5_NUM_ASYNC_EQE; 605 devlink_param_driverinit_value_set(devlink, 606 DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE, 607 value); 608 } 609 610 static const struct devlink_param enable_eth_param = 611 DEVLINK_PARAM_GENERIC(ENABLE_ETH, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), 612 NULL, NULL, NULL); 613 614 static int mlx5_devlink_eth_param_register(struct devlink *devlink) 615 { 616 struct mlx5_core_dev *dev = devlink_priv(devlink); 617 union devlink_param_value value; 618 int err; 619 620 if (!mlx5_eth_supported(dev)) 621 return 0; 622 623 err = devlink_param_register(devlink, &enable_eth_param); 624 if (err) 625 return err; 626 627 value.vbool = true; 628 devlink_param_driverinit_value_set(devlink, 629 DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH, 630 value); 631 return 0; 632 } 633 634 static void mlx5_devlink_eth_param_unregister(struct devlink *devlink) 635 { 636 struct mlx5_core_dev *dev = devlink_priv(devlink); 637 638 if (!mlx5_eth_supported(dev)) 639 return; 640 641 devlink_param_unregister(devlink, &enable_eth_param); 642 } 643 644 static int mlx5_devlink_enable_rdma_validate(struct devlink *devlink, u32 id, 645 union devlink_param_value val, 646 struct netlink_ext_ack *extack) 647 { 648 struct mlx5_core_dev *dev = devlink_priv(devlink); 649 bool new_state = val.vbool; 650 651 if (new_state && !mlx5_rdma_supported(dev)) 652 return -EOPNOTSUPP; 653 return 0; 654 } 655 656 static const struct devlink_param enable_rdma_param = 657 DEVLINK_PARAM_GENERIC(ENABLE_RDMA, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), 658 NULL, NULL, mlx5_devlink_enable_rdma_validate); 659 660 static int mlx5_devlink_rdma_param_register(struct devlink *devlink) 661 { 662 union devlink_param_value value; 663 int err; 664 665 if (!IS_ENABLED(CONFIG_MLX5_INFINIBAND)) 666 return 0; 667 668 err = devlink_param_register(devlink, &enable_rdma_param); 669 if (err) 670 return err; 671 672 value.vbool = true; 673 devlink_param_driverinit_value_set(devlink, 674 DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA, 675 value); 676 return 0; 677 } 678 679 static void mlx5_devlink_rdma_param_unregister(struct devlink *devlink) 680 { 681 if (!IS_ENABLED(CONFIG_MLX5_INFINIBAND)) 682 return; 683 684 devlink_param_unregister(devlink, &enable_rdma_param); 685 } 686 687 static const struct devlink_param enable_vnet_param = 688 DEVLINK_PARAM_GENERIC(ENABLE_VNET, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), 689 NULL, NULL, NULL); 690 691 static int mlx5_devlink_vnet_param_register(struct devlink *devlink) 692 { 693 struct mlx5_core_dev *dev = devlink_priv(devlink); 694 union devlink_param_value value; 695 int err; 696 697 if (!mlx5_vnet_supported(dev)) 698 return 0; 699 700 err = devlink_param_register(devlink, &enable_vnet_param); 701 if (err) 702 return err; 703 704 value.vbool = true; 705 devlink_param_driverinit_value_set(devlink, 706 DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET, 707 value); 708 return 0; 709 } 710 711 static void mlx5_devlink_vnet_param_unregister(struct devlink *devlink) 712 { 713 struct mlx5_core_dev *dev = devlink_priv(devlink); 714 715 if (!mlx5_vnet_supported(dev)) 716 return; 717 718 devlink_param_unregister(devlink, &enable_vnet_param); 719 } 720 721 static int mlx5_devlink_auxdev_params_register(struct devlink *devlink) 722 { 723 int err; 724 725 err = mlx5_devlink_eth_param_register(devlink); 726 if (err) 727 return err; 728 729 err = mlx5_devlink_rdma_param_register(devlink); 730 if (err) 731 goto rdma_err; 732 733 err = mlx5_devlink_vnet_param_register(devlink); 734 if (err) 735 goto vnet_err; 736 return 0; 737 738 vnet_err: 739 mlx5_devlink_rdma_param_unregister(devlink); 740 rdma_err: 741 mlx5_devlink_eth_param_unregister(devlink); 742 return err; 743 } 744 745 static void mlx5_devlink_auxdev_params_unregister(struct devlink *devlink) 746 { 747 mlx5_devlink_vnet_param_unregister(devlink); 748 mlx5_devlink_rdma_param_unregister(devlink); 749 mlx5_devlink_eth_param_unregister(devlink); 750 } 751 752 static int mlx5_devlink_max_uc_list_validate(struct devlink *devlink, u32 id, 753 union devlink_param_value val, 754 struct netlink_ext_ack *extack) 755 { 756 struct mlx5_core_dev *dev = devlink_priv(devlink); 757 758 if (val.vu32 == 0) { 759 NL_SET_ERR_MSG_MOD(extack, "max_macs value must be greater than 0"); 760 return -EINVAL; 761 } 762 763 if (!is_power_of_2(val.vu32)) { 764 NL_SET_ERR_MSG_MOD(extack, "Only power of 2 values are supported for max_macs"); 765 return -EINVAL; 766 } 767 768 if (ilog2(val.vu32) > 769 MLX5_CAP_GEN_MAX(dev, log_max_current_uc_list)) { 770 NL_SET_ERR_MSG_MOD(extack, "max_macs value is out of the supported range"); 771 return -EINVAL; 772 } 773 774 return 0; 775 } 776 777 static const struct devlink_param max_uc_list_param = 778 DEVLINK_PARAM_GENERIC(MAX_MACS, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT), 779 NULL, NULL, mlx5_devlink_max_uc_list_validate); 780 781 static int mlx5_devlink_max_uc_list_param_register(struct devlink *devlink) 782 { 783 struct mlx5_core_dev *dev = devlink_priv(devlink); 784 union devlink_param_value value; 785 int err; 786 787 if (!MLX5_CAP_GEN_MAX(dev, log_max_current_uc_list_wr_supported)) 788 return 0; 789 790 err = devlink_param_register(devlink, &max_uc_list_param); 791 if (err) 792 return err; 793 794 value.vu32 = 1 << MLX5_CAP_GEN(dev, log_max_current_uc_list); 795 devlink_param_driverinit_value_set(devlink, 796 DEVLINK_PARAM_GENERIC_ID_MAX_MACS, 797 value); 798 return 0; 799 } 800 801 static void 802 mlx5_devlink_max_uc_list_param_unregister(struct devlink *devlink) 803 { 804 struct mlx5_core_dev *dev = devlink_priv(devlink); 805 806 if (!MLX5_CAP_GEN_MAX(dev, log_max_current_uc_list_wr_supported)) 807 return; 808 809 devlink_param_unregister(devlink, &max_uc_list_param); 810 } 811 812 #define MLX5_TRAP_DROP(_id, _group_id) \ 813 DEVLINK_TRAP_GENERIC(DROP, DROP, _id, \ 814 DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \ 815 DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT) 816 817 static const struct devlink_trap mlx5_traps_arr[] = { 818 MLX5_TRAP_DROP(INGRESS_VLAN_FILTER, L2_DROPS), 819 MLX5_TRAP_DROP(DMAC_FILTER, L2_DROPS), 820 }; 821 822 static const struct devlink_trap_group mlx5_trap_groups_arr[] = { 823 DEVLINK_TRAP_GROUP_GENERIC(L2_DROPS, 0), 824 }; 825 826 static int mlx5_devlink_traps_register(struct devlink *devlink) 827 { 828 struct mlx5_core_dev *core_dev = devlink_priv(devlink); 829 int err; 830 831 err = devlink_trap_groups_register(devlink, mlx5_trap_groups_arr, 832 ARRAY_SIZE(mlx5_trap_groups_arr)); 833 if (err) 834 return err; 835 836 err = devlink_traps_register(devlink, mlx5_traps_arr, ARRAY_SIZE(mlx5_traps_arr), 837 &core_dev->priv); 838 if (err) 839 goto err_trap_group; 840 return 0; 841 842 err_trap_group: 843 devlink_trap_groups_unregister(devlink, mlx5_trap_groups_arr, 844 ARRAY_SIZE(mlx5_trap_groups_arr)); 845 return err; 846 } 847 848 static void mlx5_devlink_traps_unregister(struct devlink *devlink) 849 { 850 devlink_traps_unregister(devlink, mlx5_traps_arr, ARRAY_SIZE(mlx5_traps_arr)); 851 devlink_trap_groups_unregister(devlink, mlx5_trap_groups_arr, 852 ARRAY_SIZE(mlx5_trap_groups_arr)); 853 } 854 855 int mlx5_devlink_register(struct devlink *devlink) 856 { 857 struct mlx5_core_dev *dev = devlink_priv(devlink); 858 int err; 859 860 err = devlink_params_register(devlink, mlx5_devlink_params, 861 ARRAY_SIZE(mlx5_devlink_params)); 862 if (err) 863 return err; 864 865 mlx5_devlink_set_params_init_values(devlink); 866 867 err = mlx5_devlink_auxdev_params_register(devlink); 868 if (err) 869 goto auxdev_reg_err; 870 871 err = mlx5_devlink_max_uc_list_param_register(devlink); 872 if (err) 873 goto max_uc_list_err; 874 875 err = mlx5_devlink_traps_register(devlink); 876 if (err) 877 goto traps_reg_err; 878 879 if (!mlx5_core_is_mp_slave(dev)) 880 devlink_set_features(devlink, DEVLINK_F_RELOAD); 881 882 return 0; 883 884 traps_reg_err: 885 mlx5_devlink_max_uc_list_param_unregister(devlink); 886 max_uc_list_err: 887 mlx5_devlink_auxdev_params_unregister(devlink); 888 auxdev_reg_err: 889 devlink_params_unregister(devlink, mlx5_devlink_params, 890 ARRAY_SIZE(mlx5_devlink_params)); 891 return err; 892 } 893 894 void mlx5_devlink_unregister(struct devlink *devlink) 895 { 896 mlx5_devlink_traps_unregister(devlink); 897 mlx5_devlink_max_uc_list_param_unregister(devlink); 898 mlx5_devlink_auxdev_params_unregister(devlink); 899 devlink_params_unregister(devlink, mlx5_devlink_params, 900 ARRAY_SIZE(mlx5_devlink_params)); 901 } 902