1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
2 /* Copyright (c) 2019 Mellanox Technologies */
10 #include "sf/dev/dev.h"
13 static int mlx5_devlink_flash_update(struct devlink *devlink,
14 struct devlink_flash_update_params *params,
15 struct netlink_ext_ack *extack)
17 struct mlx5_core_dev *dev = devlink_priv(devlink);
19 return mlx5_firmware_flash(dev, params->fw, extack);
22 static u8 mlx5_fw_ver_major(u32 version)
24 return (version >> 24) & 0xff;
27 static u8 mlx5_fw_ver_minor(u32 version)
29 return (version >> 16) & 0xff;
32 static u16 mlx5_fw_ver_subminor(u32 version)
34 return version & 0xffff;
37 #define DEVLINK_FW_STRING_LEN 32
40 mlx5_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
41 struct netlink_ext_ack *extack)
43 struct mlx5_core_dev *dev = devlink_priv(devlink);
44 char version_str[DEVLINK_FW_STRING_LEN];
45 u32 running_fw, stored_fw;
48 err = devlink_info_driver_name_put(req, KBUILD_MODNAME);
52 err = devlink_info_version_fixed_put(req, "fw.psid", dev->board_id);
56 err = mlx5_fw_version_query(dev, &running_fw, &stored_fw);
60 snprintf(version_str, sizeof(version_str), "%d.%d.%04d",
61 mlx5_fw_ver_major(running_fw), mlx5_fw_ver_minor(running_fw),
62 mlx5_fw_ver_subminor(running_fw));
63 err = devlink_info_version_running_put(req, "fw.version", version_str);
67 /* no pending version, return running (stored) version */
69 stored_fw = running_fw;
71 snprintf(version_str, sizeof(version_str), "%d.%d.%04d",
72 mlx5_fw_ver_major(stored_fw), mlx5_fw_ver_minor(stored_fw),
73 mlx5_fw_ver_subminor(stored_fw));
74 err = devlink_info_version_stored_put(req, "fw.version", version_str);
81 static int mlx5_devlink_reload_fw_activate(struct devlink *devlink, struct netlink_ext_ack *extack)
83 struct mlx5_core_dev *dev = devlink_priv(devlink);
84 u8 reset_level, reset_type, net_port_alive;
87 err = mlx5_fw_reset_query(dev, &reset_level, &reset_type);
90 if (!(reset_level & MLX5_MFRL_REG_RESET_LEVEL3)) {
91 NL_SET_ERR_MSG_MOD(extack, "FW activate requires reboot");
95 net_port_alive = !!(reset_type & MLX5_MFRL_REG_RESET_TYPE_NET_PORT_ALIVE);
96 err = mlx5_fw_reset_set_reset_sync(dev, net_port_alive);
100 err = mlx5_fw_reset_wait_reset_done(dev);
103 NL_SET_ERR_MSG_MOD(extack, "FW activate command failed");
107 static int mlx5_devlink_trigger_fw_live_patch(struct devlink *devlink,
108 struct netlink_ext_ack *extack)
110 struct mlx5_core_dev *dev = devlink_priv(devlink);
114 err = mlx5_fw_reset_query(dev, &reset_level, NULL);
117 if (!(reset_level & MLX5_MFRL_REG_RESET_LEVEL0)) {
118 NL_SET_ERR_MSG_MOD(extack,
119 "FW upgrade to the stored FW can't be done by FW live patching");
123 return mlx5_fw_reset_set_live_patch(dev);
126 static int mlx5_devlink_reload_down(struct devlink *devlink, bool netns_change,
127 enum devlink_reload_action action,
128 enum devlink_reload_limit limit,
129 struct netlink_ext_ack *extack)
131 struct mlx5_core_dev *dev = devlink_priv(devlink);
132 bool sf_dev_allocated;
134 sf_dev_allocated = mlx5_sf_dev_allocated(dev);
135 if (sf_dev_allocated) {
136 /* Reload results in deleting SF device which further results in
137 * unregistering devlink instance while holding devlink_mutext.
138 * Hence, do not support reload.
140 NL_SET_ERR_MSG_MOD(extack, "reload is unsupported when SFs are allocated");
144 if (mlx5_lag_is_active(dev)) {
145 NL_SET_ERR_MSG_MOD(extack, "reload is unsupported in Lag mode");
150 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT:
151 mlx5_unload_one(dev);
153 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE:
154 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
155 return mlx5_devlink_trigger_fw_live_patch(devlink, extack);
156 return mlx5_devlink_reload_fw_activate(devlink, extack);
158 /* Unsupported action should not get to this function */
164 static int mlx5_devlink_reload_up(struct devlink *devlink, enum devlink_reload_action action,
165 enum devlink_reload_limit limit, u32 *actions_performed,
166 struct netlink_ext_ack *extack)
168 struct mlx5_core_dev *dev = devlink_priv(devlink);
170 *actions_performed = BIT(action);
172 case DEVLINK_RELOAD_ACTION_DRIVER_REINIT:
173 return mlx5_load_one(dev);
174 case DEVLINK_RELOAD_ACTION_FW_ACTIVATE:
175 if (limit == DEVLINK_RELOAD_LIMIT_NO_RESET)
177 /* On fw_activate action, also driver is reloaded and reinit performed */
178 *actions_performed |= BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT);
179 return mlx5_load_one(dev);
181 /* Unsupported action should not get to this function */
189 static struct mlx5_devlink_trap *mlx5_find_trap_by_id(struct mlx5_core_dev *dev, int trap_id)
191 struct mlx5_devlink_trap *dl_trap;
193 list_for_each_entry(dl_trap, &dev->priv.traps, list)
194 if (dl_trap->trap.id == trap_id)
200 static int mlx5_devlink_trap_init(struct devlink *devlink, const struct devlink_trap *trap,
203 struct mlx5_core_dev *dev = devlink_priv(devlink);
204 struct mlx5_devlink_trap *dl_trap;
206 dl_trap = kzalloc(sizeof(*dl_trap), GFP_KERNEL);
210 dl_trap->trap.id = trap->id;
211 dl_trap->trap.action = DEVLINK_TRAP_ACTION_DROP;
212 dl_trap->item = trap_ctx;
214 if (mlx5_find_trap_by_id(dev, trap->id)) {
216 mlx5_core_err(dev, "Devlink trap: Trap 0x%x already found", trap->id);
220 list_add_tail(&dl_trap->list, &dev->priv.traps);
224 static void mlx5_devlink_trap_fini(struct devlink *devlink, const struct devlink_trap *trap,
227 struct mlx5_core_dev *dev = devlink_priv(devlink);
228 struct mlx5_devlink_trap *dl_trap;
230 dl_trap = mlx5_find_trap_by_id(dev, trap->id);
232 mlx5_core_err(dev, "Devlink trap: Missing trap id 0x%x", trap->id);
235 list_del(&dl_trap->list);
239 static int mlx5_devlink_trap_action_set(struct devlink *devlink,
240 const struct devlink_trap *trap,
241 enum devlink_trap_action action,
242 struct netlink_ext_ack *extack)
244 struct mlx5_core_dev *dev = devlink_priv(devlink);
245 enum devlink_trap_action action_orig;
246 struct mlx5_devlink_trap *dl_trap;
249 if (is_mdev_switchdev_mode(dev)) {
250 NL_SET_ERR_MSG_MOD(extack, "Devlink traps can't be set in switchdev mode");
254 dl_trap = mlx5_find_trap_by_id(dev, trap->id);
256 mlx5_core_err(dev, "Devlink trap: Set action on invalid trap id 0x%x", trap->id);
261 if (action != DEVLINK_TRAP_ACTION_DROP && action != DEVLINK_TRAP_ACTION_TRAP) {
266 if (action == dl_trap->trap.action)
269 action_orig = dl_trap->trap.action;
270 dl_trap->trap.action = action;
271 err = mlx5_blocking_notifier_call_chain(dev, MLX5_DRIVER_EVENT_TYPE_TRAP,
274 dl_trap->trap.action = action_orig;
279 static const struct devlink_ops mlx5_devlink_ops = {
280 #ifdef CONFIG_MLX5_ESWITCH
281 .eswitch_mode_set = mlx5_devlink_eswitch_mode_set,
282 .eswitch_mode_get = mlx5_devlink_eswitch_mode_get,
283 .eswitch_inline_mode_set = mlx5_devlink_eswitch_inline_mode_set,
284 .eswitch_inline_mode_get = mlx5_devlink_eswitch_inline_mode_get,
285 .eswitch_encap_mode_set = mlx5_devlink_eswitch_encap_mode_set,
286 .eswitch_encap_mode_get = mlx5_devlink_eswitch_encap_mode_get,
287 .port_function_hw_addr_get = mlx5_devlink_port_function_hw_addr_get,
288 .port_function_hw_addr_set = mlx5_devlink_port_function_hw_addr_set,
290 #ifdef CONFIG_MLX5_SF_MANAGER
291 .port_new = mlx5_devlink_sf_port_new,
292 .port_del = mlx5_devlink_sf_port_del,
293 .port_fn_state_get = mlx5_devlink_sf_port_fn_state_get,
294 .port_fn_state_set = mlx5_devlink_sf_port_fn_state_set,
296 .flash_update = mlx5_devlink_flash_update,
297 .info_get = mlx5_devlink_info_get,
298 .reload_actions = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT) |
299 BIT(DEVLINK_RELOAD_ACTION_FW_ACTIVATE),
300 .reload_limits = BIT(DEVLINK_RELOAD_LIMIT_NO_RESET),
301 .reload_down = mlx5_devlink_reload_down,
302 .reload_up = mlx5_devlink_reload_up,
303 .trap_init = mlx5_devlink_trap_init,
304 .trap_fini = mlx5_devlink_trap_fini,
305 .trap_action_set = mlx5_devlink_trap_action_set,
308 void mlx5_devlink_trap_report(struct mlx5_core_dev *dev, int trap_id, struct sk_buff *skb,
309 struct devlink_port *dl_port)
311 struct devlink *devlink = priv_to_devlink(dev);
312 struct mlx5_devlink_trap *dl_trap;
314 dl_trap = mlx5_find_trap_by_id(dev, trap_id);
316 mlx5_core_err(dev, "Devlink trap: Report on invalid trap id 0x%x", trap_id);
320 if (dl_trap->trap.action != DEVLINK_TRAP_ACTION_TRAP) {
321 mlx5_core_dbg(dev, "Devlink trap: Trap id %d has action %d", trap_id,
322 dl_trap->trap.action);
325 devlink_trap_report(devlink, skb, dl_trap->item, dl_port, NULL);
328 int mlx5_devlink_trap_get_num_active(struct mlx5_core_dev *dev)
330 struct mlx5_devlink_trap *dl_trap;
333 list_for_each_entry(dl_trap, &dev->priv.traps, list)
334 if (dl_trap->trap.action == DEVLINK_TRAP_ACTION_TRAP)
340 int mlx5_devlink_traps_get_action(struct mlx5_core_dev *dev, int trap_id,
341 enum devlink_trap_action *action)
343 struct mlx5_devlink_trap *dl_trap;
345 dl_trap = mlx5_find_trap_by_id(dev, trap_id);
347 mlx5_core_err(dev, "Devlink trap: Get action on invalid trap id 0x%x",
352 *action = dl_trap->trap.action;
356 struct devlink *mlx5_devlink_alloc(void)
358 return devlink_alloc(&mlx5_devlink_ops, sizeof(struct mlx5_core_dev));
361 void mlx5_devlink_free(struct devlink *devlink)
363 devlink_free(devlink);
366 static int mlx5_devlink_fs_mode_validate(struct devlink *devlink, u32 id,
367 union devlink_param_value val,
368 struct netlink_ext_ack *extack)
370 struct mlx5_core_dev *dev = devlink_priv(devlink);
371 char *value = val.vstr;
374 if (!strcmp(value, "dmfs")) {
376 } else if (!strcmp(value, "smfs")) {
380 eswitch_mode = mlx5_eswitch_mode(dev);
381 smfs_cap = mlx5_fs_dr_is_supported(dev);
385 NL_SET_ERR_MSG_MOD(extack,
386 "Software managed steering is not supported by current device");
389 else if (eswitch_mode == MLX5_ESWITCH_OFFLOADS) {
390 NL_SET_ERR_MSG_MOD(extack,
391 "Software managed steering is not supported when eswitch offloads enabled.");
395 NL_SET_ERR_MSG_MOD(extack,
396 "Bad parameter: supported values are [\"dmfs\", \"smfs\"]");
403 static int mlx5_devlink_fs_mode_set(struct devlink *devlink, u32 id,
404 struct devlink_param_gset_ctx *ctx)
406 struct mlx5_core_dev *dev = devlink_priv(devlink);
407 enum mlx5_flow_steering_mode mode;
409 if (!strcmp(ctx->val.vstr, "smfs"))
410 mode = MLX5_FLOW_STEERING_MODE_SMFS;
412 mode = MLX5_FLOW_STEERING_MODE_DMFS;
413 dev->priv.steering->mode = mode;
418 static int mlx5_devlink_fs_mode_get(struct devlink *devlink, u32 id,
419 struct devlink_param_gset_ctx *ctx)
421 struct mlx5_core_dev *dev = devlink_priv(devlink);
423 if (dev->priv.steering->mode == MLX5_FLOW_STEERING_MODE_SMFS)
424 strcpy(ctx->val.vstr, "smfs");
426 strcpy(ctx->val.vstr, "dmfs");
430 static int mlx5_devlink_enable_roce_validate(struct devlink *devlink, u32 id,
431 union devlink_param_value val,
432 struct netlink_ext_ack *extack)
434 struct mlx5_core_dev *dev = devlink_priv(devlink);
435 bool new_state = val.vbool;
437 if (new_state && !MLX5_CAP_GEN(dev, roce)) {
438 NL_SET_ERR_MSG_MOD(extack, "Device doesn't support RoCE");
441 if (mlx5_core_is_mp_slave(dev) || mlx5_lag_is_active(dev)) {
442 NL_SET_ERR_MSG_MOD(extack, "Multi port slave/Lag device can't configure RoCE");
449 #ifdef CONFIG_MLX5_ESWITCH
450 static int mlx5_devlink_large_group_num_validate(struct devlink *devlink, u32 id,
451 union devlink_param_value val,
452 struct netlink_ext_ack *extack)
454 int group_num = val.vu32;
456 if (group_num < 1 || group_num > 1024) {
457 NL_SET_ERR_MSG_MOD(extack,
458 "Unsupported group number, supported range is 1-1024");
465 static int mlx5_devlink_esw_port_metadata_set(struct devlink *devlink, u32 id,
466 struct devlink_param_gset_ctx *ctx)
468 struct mlx5_core_dev *dev = devlink_priv(devlink);
470 if (!MLX5_ESWITCH_MANAGER(dev))
473 return mlx5_esw_offloads_vport_metadata_set(dev->priv.eswitch, ctx->val.vbool);
476 static int mlx5_devlink_esw_port_metadata_get(struct devlink *devlink, u32 id,
477 struct devlink_param_gset_ctx *ctx)
479 struct mlx5_core_dev *dev = devlink_priv(devlink);
481 if (!MLX5_ESWITCH_MANAGER(dev))
484 ctx->val.vbool = mlx5_eswitch_vport_match_metadata_enabled(dev->priv.eswitch);
488 static int mlx5_devlink_esw_port_metadata_validate(struct devlink *devlink, u32 id,
489 union devlink_param_value val,
490 struct netlink_ext_ack *extack)
492 struct mlx5_core_dev *dev = devlink_priv(devlink);
495 if (!MLX5_ESWITCH_MANAGER(dev)) {
496 NL_SET_ERR_MSG_MOD(extack, "E-Switch is unsupported");
499 esw_mode = mlx5_eswitch_mode(dev);
500 if (esw_mode == MLX5_ESWITCH_OFFLOADS) {
501 NL_SET_ERR_MSG_MOD(extack,
502 "E-Switch must either disabled or non switchdev mode");
510 static int mlx5_devlink_enable_remote_dev_reset_set(struct devlink *devlink, u32 id,
511 struct devlink_param_gset_ctx *ctx)
513 struct mlx5_core_dev *dev = devlink_priv(devlink);
515 mlx5_fw_reset_enable_remote_dev_reset_set(dev, ctx->val.vbool);
519 static int mlx5_devlink_enable_remote_dev_reset_get(struct devlink *devlink, u32 id,
520 struct devlink_param_gset_ctx *ctx)
522 struct mlx5_core_dev *dev = devlink_priv(devlink);
524 ctx->val.vbool = mlx5_fw_reset_enable_remote_dev_reset_get(dev);
528 static const struct devlink_param mlx5_devlink_params[] = {
529 DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_FLOW_STEERING_MODE,
530 "flow_steering_mode", DEVLINK_PARAM_TYPE_STRING,
531 BIT(DEVLINK_PARAM_CMODE_RUNTIME),
532 mlx5_devlink_fs_mode_get, mlx5_devlink_fs_mode_set,
533 mlx5_devlink_fs_mode_validate),
534 DEVLINK_PARAM_GENERIC(ENABLE_ROCE, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
535 NULL, NULL, mlx5_devlink_enable_roce_validate),
536 #ifdef CONFIG_MLX5_ESWITCH
537 DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM,
538 "fdb_large_groups", DEVLINK_PARAM_TYPE_U32,
539 BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
541 mlx5_devlink_large_group_num_validate),
542 DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_ESW_PORT_METADATA,
543 "esw_port_metadata", DEVLINK_PARAM_TYPE_BOOL,
544 BIT(DEVLINK_PARAM_CMODE_RUNTIME),
545 mlx5_devlink_esw_port_metadata_get,
546 mlx5_devlink_esw_port_metadata_set,
547 mlx5_devlink_esw_port_metadata_validate),
549 DEVLINK_PARAM_GENERIC(ENABLE_REMOTE_DEV_RESET, BIT(DEVLINK_PARAM_CMODE_RUNTIME),
550 mlx5_devlink_enable_remote_dev_reset_get,
551 mlx5_devlink_enable_remote_dev_reset_set, NULL),
554 static void mlx5_devlink_set_params_init_values(struct devlink *devlink)
556 struct mlx5_core_dev *dev = devlink_priv(devlink);
557 union devlink_param_value value;
559 if (dev->priv.steering->mode == MLX5_FLOW_STEERING_MODE_DMFS)
560 strcpy(value.vstr, "dmfs");
562 strcpy(value.vstr, "smfs");
563 devlink_param_driverinit_value_set(devlink,
564 MLX5_DEVLINK_PARAM_ID_FLOW_STEERING_MODE,
567 value.vbool = MLX5_CAP_GEN(dev, roce);
568 devlink_param_driverinit_value_set(devlink,
569 DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
572 #ifdef CONFIG_MLX5_ESWITCH
573 value.vu32 = ESW_OFFLOADS_DEFAULT_NUM_GROUPS;
574 devlink_param_driverinit_value_set(devlink,
575 MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM,
578 if (MLX5_ESWITCH_MANAGER(dev)) {
579 if (mlx5_esw_vport_match_metadata_supported(dev->priv.eswitch)) {
580 dev->priv.eswitch->flags |= MLX5_ESWITCH_VPORT_MATCH_METADATA;
585 devlink_param_driverinit_value_set(devlink,
586 MLX5_DEVLINK_PARAM_ID_ESW_PORT_METADATA,
592 #define MLX5_TRAP_DROP(_id, _group_id) \
593 DEVLINK_TRAP_GENERIC(DROP, DROP, _id, \
594 DEVLINK_TRAP_GROUP_GENERIC_ID_##_group_id, \
595 DEVLINK_TRAP_METADATA_TYPE_F_IN_PORT)
597 static const struct devlink_trap mlx5_traps_arr[] = {
598 MLX5_TRAP_DROP(INGRESS_VLAN_FILTER, L2_DROPS),
599 MLX5_TRAP_DROP(DMAC_FILTER, L2_DROPS),
602 static const struct devlink_trap_group mlx5_trap_groups_arr[] = {
603 DEVLINK_TRAP_GROUP_GENERIC(L2_DROPS, 0),
606 static int mlx5_devlink_traps_register(struct devlink *devlink)
608 struct mlx5_core_dev *core_dev = devlink_priv(devlink);
611 err = devlink_trap_groups_register(devlink, mlx5_trap_groups_arr,
612 ARRAY_SIZE(mlx5_trap_groups_arr));
616 err = devlink_traps_register(devlink, mlx5_traps_arr, ARRAY_SIZE(mlx5_traps_arr),
623 devlink_trap_groups_unregister(devlink, mlx5_trap_groups_arr,
624 ARRAY_SIZE(mlx5_trap_groups_arr));
628 static void mlx5_devlink_traps_unregister(struct devlink *devlink)
630 devlink_traps_unregister(devlink, mlx5_traps_arr, ARRAY_SIZE(mlx5_traps_arr));
631 devlink_trap_groups_unregister(devlink, mlx5_trap_groups_arr,
632 ARRAY_SIZE(mlx5_trap_groups_arr));
635 int mlx5_devlink_register(struct devlink *devlink, struct device *dev)
639 err = devlink_register(devlink, dev);
643 err = devlink_params_register(devlink, mlx5_devlink_params,
644 ARRAY_SIZE(mlx5_devlink_params));
647 mlx5_devlink_set_params_init_values(devlink);
648 devlink_params_publish(devlink);
650 err = mlx5_devlink_traps_register(devlink);
657 devlink_params_unregister(devlink, mlx5_devlink_params,
658 ARRAY_SIZE(mlx5_devlink_params));
660 devlink_unregister(devlink);
664 void mlx5_devlink_unregister(struct devlink *devlink)
666 mlx5_devlink_traps_unregister(devlink);
667 devlink_params_unregister(devlink, mlx5_devlink_params,
668 ARRAY_SIZE(mlx5_devlink_params));
669 devlink_unregister(devlink);