Merge branch 'devlink-parama-cleanup'

Jiri Pirko says:

====================
devlink: Cleanup params usage

This patchset takes care of small cleanup of devlink params usage.
Some of the patches (first 2/3) are cosmetic, but I would like to
point couple of interesting ones:

Patch 9 is the main one of this set and introduces devlink instance
locking for params, similar to other devlink objects. That allows params
to be registered/unregistered when devlink instance is registered.

Patches 10-12 change mlx5 code to register non-driverinit params in the
code they are related to, and thanks to patch 8 this might be when
devlink instance is registered - for example during devlink reload.

---
v1->v2:
- Just small fix in the last patch
====================

Signed-off-by: David S. Miller <[e-mail]>

drivers/net/ethernet/intel/ice/ice_devlink.c

···
 int ice_devlink_register_params(struct ice_pf *pf)
 {
 	struct devlink *devlink = priv_to_devlink(pf);
-	union devlink_param_value value;
-	int err;
 
-	err = devlink_params_register(devlink, ice_devlink_params,
-				      ARRAY_SIZE(ice_devlink_params));
-	if (err)
-		return err;
-
-	value.vbool = false;
-	devlink_param_driverinit_value_set(devlink,
-					   DEVLINK_PARAM_GENERIC_ID_ENABLE_IWARP,
-					   value);
-
-	value.vbool = test_bit(ICE_FLAG_RDMA_ENA, pf->flags) ? true : false;
-	devlink_param_driverinit_value_set(devlink,
-					   DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
-					   value);
-
-	return 0;
+	return devlink_params_register(devlink, ice_devlink_params,
+				       ARRAY_SIZE(ice_devlink_params));
 }
 
 void ice_devlink_unregister_params(struct ice_pf *pf)

drivers/net/ethernet/mellanox/mlx4/main.c

···
 	union devlink_param_value value;
 
 	value.vbool = !!mlx4_internal_err_reset;
-	devlink_param_driverinit_value_set(devlink,
-					   DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
+					value);
 
 	value.vu32 = 1UL << log_num_mac;
-	devlink_param_driverinit_value_set(devlink,
-					   DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
+					value);
 
 	value.vbool = enable_64b_cqe_eqe;
-	devlink_param_driverinit_value_set(devlink,
-					   MLX4_DEVLINK_PARAM_ID_ENABLE_64B_CQE_EQE,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					MLX4_DEVLINK_PARAM_ID_ENABLE_64B_CQE_EQE,
+					value);
 
 	value.vbool = enable_4k_uar;
-	devlink_param_driverinit_value_set(devlink,
-					   MLX4_DEVLINK_PARAM_ID_ENABLE_4K_UAR,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					MLX4_DEVLINK_PARAM_ID_ENABLE_4K_UAR,
+					value);
 
 	value.vbool = false;
-	devlink_param_driverinit_value_set(devlink,
-					   DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,
+					value);
 }
 
 static inline void mlx4_set_num_reserved_uars(struct mlx4_dev *dev,
···
 	union devlink_param_value saved_value;
 	int err;
 
-	err = devlink_param_driverinit_value_get(devlink,
-						 DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
-						 &saved_value);
+	err = devl_param_driverinit_value_get(devlink,
+					      DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET,
+					      &saved_value);
 	if (!err && mlx4_internal_err_reset != saved_value.vbool) {
 		mlx4_internal_err_reset = saved_value.vbool;
 		/* Notify on value changed on runtime configuration mode */
-		devlink_param_value_changed(devlink,
-					    DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET);
+		devl_param_value_changed(devlink,
+					 DEVLINK_PARAM_GENERIC_ID_INT_ERR_RESET);
 	}
-	err = devlink_param_driverinit_value_get(devlink,
-						 DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
-						 &saved_value);
+	err = devl_param_driverinit_value_get(devlink,
+					      DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
+					      &saved_value);
 	if (!err)
 		log_num_mac = order_base_2(saved_value.vu32);
-	err = devlink_param_driverinit_value_get(devlink,
-						 MLX4_DEVLINK_PARAM_ID_ENABLE_64B_CQE_EQE,
-						 &saved_value);
+	err = devl_param_driverinit_value_get(devlink,
+					      MLX4_DEVLINK_PARAM_ID_ENABLE_64B_CQE_EQE,
+					      &saved_value);
 	if (!err)
 		enable_64b_cqe_eqe = saved_value.vbool;
-	err = devlink_param_driverinit_value_get(devlink,
-						 MLX4_DEVLINK_PARAM_ID_ENABLE_4K_UAR,
-						 &saved_value);
+	err = devl_param_driverinit_value_get(devlink,
+					      MLX4_DEVLINK_PARAM_ID_ENABLE_4K_UAR,
+					      &saved_value);
 	if (!err)
 		enable_4k_uar = saved_value.vbool;
-	err = devlink_param_driverinit_value_get(devlink,
-						 DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,
-						 &saved_value);
+	err = devl_param_driverinit_value_get(devlink,
+					      DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT,
+					      &saved_value);
 	if (!err && crdump->snapshot_enable != saved_value.vbool) {
 		crdump->snapshot_enable = saved_value.vbool;
-		devlink_param_value_changed(devlink,
-					    DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT);
+		devl_param_value_changed(devlink,
+					 DEVLINK_PARAM_GENERIC_ID_REGION_SNAPSHOT);
 	}
 }
 
···
 	mutex_init(&dev->persist->interface_state_mutex);
 	mutex_init(&dev->persist->pci_status_mutex);
 
-	ret = devlink_params_register(devlink, mlx4_devlink_params,
-				      ARRAY_SIZE(mlx4_devlink_params));
+	ret = devl_params_register(devlink, mlx4_devlink_params,
+				   ARRAY_SIZE(mlx4_devlink_params));
 	if (ret)
 		goto err_devlink_unregister;
 	mlx4_devlink_set_params_init_values(devlink);
···
 	return 0;
 
 err_params_unregister:
-	devlink_params_unregister(devlink, mlx4_devlink_params,
-				  ARRAY_SIZE(mlx4_devlink_params));
+	devl_params_unregister(devlink, mlx4_devlink_params,
+			       ARRAY_SIZE(mlx4_devlink_params));
 err_devlink_unregister:
 	kfree(dev->persist);
 err_devlink_free:
···
 
 	pci_release_regions(pdev);
 	mlx4_pci_disable_device(dev);
-	devlink_params_unregister(devlink, mlx4_devlink_params,
-				  ARRAY_SIZE(mlx4_devlink_params));
+	devl_params_unregister(devlink, mlx4_devlink_params,
+			       ARRAY_SIZE(mlx4_devlink_params));
 	kfree(dev->persist);
 	devl_unlock(devlink);
 	devlink_free(devlink);

drivers/net/ethernet/mellanox/mlx5/core/dev.c

···
 	union devlink_param_value val;
 	int err;
 
-	err = devlink_param_driverinit_value_get(priv_to_devlink(dev),
-						 DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH,
-						 &val);
+	err = devl_param_driverinit_value_get(priv_to_devlink(dev),
+					      DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH,
+					      &val);
 	return err ? false : val.vbool;
 }
 
···
 	union devlink_param_value val;
 	int err;
 
-	err = devlink_param_driverinit_value_get(priv_to_devlink(dev),
-						 DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET,
-						 &val);
+	err = devl_param_driverinit_value_get(priv_to_devlink(dev),
+					      DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET,
+					      &val);
 	return err ? false : val.vbool;
 }
 
···
 	union devlink_param_value val;
 	int err;
 
-	err = devlink_param_driverinit_value_get(priv_to_devlink(dev),
-						 DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA,
-						 &val);
+	err = devl_param_driverinit_value_get(priv_to_devlink(dev),
+					      DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA,
+					      &val);
 	return err ? false : val.vbool;
 }
 

drivers/net/ethernet/mellanox/mlx5/core/devlink.c

···
 	devlink_free(devlink);
 }
 
-static int mlx5_devlink_fs_mode_validate(struct devlink *devlink, u32 id,
-					 union devlink_param_value val,
-					 struct netlink_ext_ack *extack)
-{
-	struct mlx5_core_dev *dev = devlink_priv(devlink);
-	char *value = val.vstr;
-	int err = 0;
-
-	if (!strcmp(value, "dmfs")) {
-		return 0;
-	} else if (!strcmp(value, "smfs")) {
-		u8 eswitch_mode;
-		bool smfs_cap;
-
-		eswitch_mode = mlx5_eswitch_mode(dev);
-		smfs_cap = mlx5_fs_dr_is_supported(dev);
-
-		if (!smfs_cap) {
-			err = -EOPNOTSUPP;
-			NL_SET_ERR_MSG_MOD(extack,
-					   "Software managed steering is not supported by current device");
-		}
-
-		else if (eswitch_mode == MLX5_ESWITCH_OFFLOADS) {
-			NL_SET_ERR_MSG_MOD(extack,
-					   "Software managed steering is not supported when eswitch offloads enabled.");
-			err = -EOPNOTSUPP;
-		}
-	} else {
-		NL_SET_ERR_MSG_MOD(extack,
-				   "Bad parameter: supported values are [\"dmfs\", \"smfs\"]");
-		err = -EINVAL;
-	}
-
-	return err;
-}
-
-static int mlx5_devlink_fs_mode_set(struct devlink *devlink, u32 id,
-				    struct devlink_param_gset_ctx *ctx)
-{
-	struct mlx5_core_dev *dev = devlink_priv(devlink);
-	enum mlx5_flow_steering_mode mode;
-
-	if (!strcmp(ctx->val.vstr, "smfs"))
-		mode = MLX5_FLOW_STEERING_MODE_SMFS;
-	else
-		mode = MLX5_FLOW_STEERING_MODE_DMFS;
-	dev->priv.steering->mode = mode;
-
-	return 0;
-}
-
-static int mlx5_devlink_fs_mode_get(struct devlink *devlink, u32 id,
-				    struct devlink_param_gset_ctx *ctx)
-{
-	struct mlx5_core_dev *dev = devlink_priv(devlink);
-
-	if (dev->priv.steering->mode == MLX5_FLOW_STEERING_MODE_SMFS)
-		strcpy(ctx->val.vstr, "smfs");
-	else
-		strcpy(ctx->val.vstr, "dmfs");
-	return 0;
-}
-
 static int mlx5_devlink_enable_roce_validate(struct devlink *devlink, u32 id,
 					     union devlink_param_value val,
 					     struct netlink_ext_ack *extack)
···
 	return 0;
 }
 
-static int mlx5_devlink_esw_port_metadata_set(struct devlink *devlink, u32 id,
-					      struct devlink_param_gset_ctx *ctx)
-{
-	struct mlx5_core_dev *dev = devlink_priv(devlink);
-
-	if (!MLX5_ESWITCH_MANAGER(dev))
-		return -EOPNOTSUPP;
-
-	return mlx5_esw_offloads_vport_metadata_set(dev->priv.eswitch, ctx->val.vbool);
-}
-
-static int mlx5_devlink_esw_port_metadata_get(struct devlink *devlink, u32 id,
-					      struct devlink_param_gset_ctx *ctx)
-{
-	struct mlx5_core_dev *dev = devlink_priv(devlink);
-
-	if (!MLX5_ESWITCH_MANAGER(dev))
-		return -EOPNOTSUPP;
-
-	ctx->val.vbool = mlx5_eswitch_vport_match_metadata_enabled(dev->priv.eswitch);
-	return 0;
-}
-
-static int mlx5_devlink_esw_port_metadata_validate(struct devlink *devlink, u32 id,
-						   union devlink_param_value val,
-						   struct netlink_ext_ack *extack)
-{
-	struct mlx5_core_dev *dev = devlink_priv(devlink);
-	u8 esw_mode;
-
-	if (!MLX5_ESWITCH_MANAGER(dev)) {
-		NL_SET_ERR_MSG_MOD(extack, "E-Switch is unsupported");
-		return -EOPNOTSUPP;
-	}
-	esw_mode = mlx5_eswitch_mode(dev);
-	if (esw_mode == MLX5_ESWITCH_OFFLOADS) {
-		NL_SET_ERR_MSG_MOD(extack,
-				   "E-Switch must either disabled or non switchdev mode");
-		return -EBUSY;
-	}
-	return 0;
-}
-
 #endif
-
-static int mlx5_devlink_enable_remote_dev_reset_set(struct devlink *devlink, u32 id,
-						    struct devlink_param_gset_ctx *ctx)
-{
-	struct mlx5_core_dev *dev = devlink_priv(devlink);
-
-	mlx5_fw_reset_enable_remote_dev_reset_set(dev, ctx->val.vbool);
-	return 0;
-}
-
-static int mlx5_devlink_enable_remote_dev_reset_get(struct devlink *devlink, u32 id,
-						    struct devlink_param_gset_ctx *ctx)
-{
-	struct mlx5_core_dev *dev = devlink_priv(devlink);
-
-	ctx->val.vbool = mlx5_fw_reset_enable_remote_dev_reset_get(dev);
-	return 0;
-}
 
 static int mlx5_devlink_eq_depth_validate(struct devlink *devlink, u32 id,
 					  union devlink_param_value val,
···
 }
 
 static const struct devlink_param mlx5_devlink_params[] = {
-	DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_FLOW_STEERING_MODE,
-			     "flow_steering_mode", DEVLINK_PARAM_TYPE_STRING,
-			     BIT(DEVLINK_PARAM_CMODE_RUNTIME),
-			     mlx5_devlink_fs_mode_get, mlx5_devlink_fs_mode_set,
-			     mlx5_devlink_fs_mode_validate),
 	DEVLINK_PARAM_GENERIC(ENABLE_ROCE, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
 			      NULL, NULL, mlx5_devlink_enable_roce_validate),
 #ifdef CONFIG_MLX5_ESWITCH
···
 			     BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
 			     NULL, NULL,
 			     mlx5_devlink_large_group_num_validate),
-	DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_ESW_PORT_METADATA,
-			     "esw_port_metadata", DEVLINK_PARAM_TYPE_BOOL,
-			     BIT(DEVLINK_PARAM_CMODE_RUNTIME),
-			     mlx5_devlink_esw_port_metadata_get,
-			     mlx5_devlink_esw_port_metadata_set,
-			     mlx5_devlink_esw_port_metadata_validate),
 #endif
-	DEVLINK_PARAM_GENERIC(ENABLE_REMOTE_DEV_RESET, BIT(DEVLINK_PARAM_CMODE_RUNTIME),
-			      mlx5_devlink_enable_remote_dev_reset_get,
-			      mlx5_devlink_enable_remote_dev_reset_set, NULL),
 	DEVLINK_PARAM_GENERIC(IO_EQ_SIZE, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
 			      NULL, NULL, mlx5_devlink_eq_depth_validate),
 	DEVLINK_PARAM_GENERIC(EVENT_EQ_SIZE, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
···
 	union devlink_param_value value;
 
 	value.vbool = MLX5_CAP_GEN(dev, roce);
-	devlink_param_driverinit_value_set(devlink,
-					   DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
+					value);
 
 #ifdef CONFIG_MLX5_ESWITCH
 	value.vu32 = ESW_OFFLOADS_DEFAULT_NUM_GROUPS;
-	devlink_param_driverinit_value_set(devlink,
-					   MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM,
+					value);
 #endif
 
 	value.vu32 = MLX5_COMP_EQ_SIZE;
-	devlink_param_driverinit_value_set(devlink,
-					   DEVLINK_PARAM_GENERIC_ID_IO_EQ_SIZE,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					DEVLINK_PARAM_GENERIC_ID_IO_EQ_SIZE,
+					value);
 
 	value.vu32 = MLX5_NUM_ASYNC_EQE;
-	devlink_param_driverinit_value_set(devlink,
-					   DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE,
+					value);
 }
 
-static const struct devlink_param enable_eth_param =
+static const struct devlink_param mlx5_devlink_eth_params[] = {
 	DEVLINK_PARAM_GENERIC(ENABLE_ETH, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
-			      NULL, NULL, NULL);
+			      NULL, NULL, NULL),
+};
 
-static int mlx5_devlink_eth_param_register(struct devlink *devlink)
+static int mlx5_devlink_eth_params_register(struct devlink *devlink)
 {
 	struct mlx5_core_dev *dev = devlink_priv(devlink);
 	union devlink_param_value value;
···
 	if (!mlx5_eth_supported(dev))
 		return 0;
 
-	err = devlink_param_register(devlink, &enable_eth_param);
+	err = devl_params_register(devlink, mlx5_devlink_eth_params,
+				   ARRAY_SIZE(mlx5_devlink_eth_params));
 	if (err)
 		return err;
 
 	value.vbool = true;
-	devlink_param_driverinit_value_set(devlink,
-					   DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					DEVLINK_PARAM_GENERIC_ID_ENABLE_ETH,
+					value);
 	return 0;
 }
 
-static void mlx5_devlink_eth_param_unregister(struct devlink *devlink)
+static void mlx5_devlink_eth_params_unregister(struct devlink *devlink)
 {
 	struct mlx5_core_dev *dev = devlink_priv(devlink);
 
 	if (!mlx5_eth_supported(dev))
 		return;
 
-	devlink_param_unregister(devlink, &enable_eth_param);
+	devl_params_unregister(devlink, mlx5_devlink_eth_params,
+			       ARRAY_SIZE(mlx5_devlink_eth_params));
 }
 
 static int mlx5_devlink_enable_rdma_validate(struct devlink *devlink, u32 id,
···
 	return 0;
 }
 
-static const struct devlink_param enable_rdma_param =
+static const struct devlink_param mlx5_devlink_rdma_params[] = {
 	DEVLINK_PARAM_GENERIC(ENABLE_RDMA, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
-			      NULL, NULL, mlx5_devlink_enable_rdma_validate);
+			      NULL, NULL, mlx5_devlink_enable_rdma_validate),
+};
 
-static int mlx5_devlink_rdma_param_register(struct devlink *devlink)
+static int mlx5_devlink_rdma_params_register(struct devlink *devlink)
 {
 	union devlink_param_value value;
 	int err;
···
 	if (!IS_ENABLED(CONFIG_MLX5_INFINIBAND))
 		return 0;
 
-	err = devlink_param_register(devlink, &enable_rdma_param);
+	err = devl_params_register(devlink, mlx5_devlink_rdma_params,
+				   ARRAY_SIZE(mlx5_devlink_rdma_params));
 	if (err)
 		return err;
 
 	value.vbool = true;
-	devlink_param_driverinit_value_set(devlink,
-					   DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					DEVLINK_PARAM_GENERIC_ID_ENABLE_RDMA,
+					value);
 	return 0;
 }
 
-static void mlx5_devlink_rdma_param_unregister(struct devlink *devlink)
+static void mlx5_devlink_rdma_params_unregister(struct devlink *devlink)
 {
 	if (!IS_ENABLED(CONFIG_MLX5_INFINIBAND))
 		return;
 
-	devlink_param_unregister(devlink, &enable_rdma_param);
+	devl_params_unregister(devlink, mlx5_devlink_rdma_params,
+			       ARRAY_SIZE(mlx5_devlink_rdma_params));
 }
 
-static const struct devlink_param enable_vnet_param =
+static const struct devlink_param mlx5_devlink_vnet_params[] = {
 	DEVLINK_PARAM_GENERIC(ENABLE_VNET, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
-			      NULL, NULL, NULL);
+			      NULL, NULL, NULL),
+};
 
-static int mlx5_devlink_vnet_param_register(struct devlink *devlink)
+static int mlx5_devlink_vnet_params_register(struct devlink *devlink)
 {
 	struct mlx5_core_dev *dev = devlink_priv(devlink);
 	union devlink_param_value value;
···
 	if (!mlx5_vnet_supported(dev))
 		return 0;
 
-	err = devlink_param_register(devlink, &enable_vnet_param);
+	err = devl_params_register(devlink, mlx5_devlink_vnet_params,
+				   ARRAY_SIZE(mlx5_devlink_vnet_params));
 	if (err)
 		return err;
 
 	value.vbool = true;
-	devlink_param_driverinit_value_set(devlink,
-					   DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					DEVLINK_PARAM_GENERIC_ID_ENABLE_VNET,
+					value);
 	return 0;
 }
 
-static void mlx5_devlink_vnet_param_unregister(struct devlink *devlink)
+static void mlx5_devlink_vnet_params_unregister(struct devlink *devlink)
 {
 	struct mlx5_core_dev *dev = devlink_priv(devlink);
 
 	if (!mlx5_vnet_supported(dev))
 		return;
 
-	devlink_param_unregister(devlink, &enable_vnet_param);
+	devl_params_unregister(devlink, mlx5_devlink_vnet_params,
+			       ARRAY_SIZE(mlx5_devlink_vnet_params));
 }
 
 static int mlx5_devlink_auxdev_params_register(struct devlink *devlink)
 {
 	int err;
 
-	err = mlx5_devlink_eth_param_register(devlink);
+	err = mlx5_devlink_eth_params_register(devlink);
 	if (err)
 		return err;
 
-	err = mlx5_devlink_rdma_param_register(devlink);
+	err = mlx5_devlink_rdma_params_register(devlink);
 	if (err)
 		goto rdma_err;
 
-	err = mlx5_devlink_vnet_param_register(devlink);
+	err = mlx5_devlink_vnet_params_register(devlink);
 	if (err)
 		goto vnet_err;
 	return 0;
 
 vnet_err:
-	mlx5_devlink_rdma_param_unregister(devlink);
+	mlx5_devlink_rdma_params_unregister(devlink);
 rdma_err:
-	mlx5_devlink_eth_param_unregister(devlink);
+	mlx5_devlink_eth_params_unregister(devlink);
 	return err;
 }
 
 static void mlx5_devlink_auxdev_params_unregister(struct devlink *devlink)
 {
-	mlx5_devlink_vnet_param_unregister(devlink);
-	mlx5_devlink_rdma_param_unregister(devlink);
-	mlx5_devlink_eth_param_unregister(devlink);
+	mlx5_devlink_vnet_params_unregister(devlink);
+	mlx5_devlink_rdma_params_unregister(devlink);
+	mlx5_devlink_eth_params_unregister(devlink);
 }
 
 static int mlx5_devlink_max_uc_list_validate(struct devlink *devlink, u32 id,
···
 	return 0;
 }
 
-static const struct devlink_param max_uc_list_param =
+static const struct devlink_param mlx5_devlink_max_uc_list_params[] = {
 	DEVLINK_PARAM_GENERIC(MAX_MACS, BIT(DEVLINK_PARAM_CMODE_DRIVERINIT),
-			      NULL, NULL, mlx5_devlink_max_uc_list_validate);
+			      NULL, NULL, mlx5_devlink_max_uc_list_validate),
+};
 
-static int mlx5_devlink_max_uc_list_param_register(struct devlink *devlink)
+static int mlx5_devlink_max_uc_list_params_register(struct devlink *devlink)
 {
 	struct mlx5_core_dev *dev = devlink_priv(devlink);
 	union devlink_param_value value;
···
 	if (!MLX5_CAP_GEN_MAX(dev, log_max_current_uc_list_wr_supported))
 		return 0;
 
-	err = devlink_param_register(devlink, &max_uc_list_param);
+	err = devl_params_register(devlink, mlx5_devlink_max_uc_list_params,
+				   ARRAY_SIZE(mlx5_devlink_max_uc_list_params));
 	if (err)
 		return err;
 
 	value.vu32 = 1 << MLX5_CAP_GEN(dev, log_max_current_uc_list);
-	devlink_param_driverinit_value_set(devlink,
-					   DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
+					value);
 	return 0;
 }
 
 static void
-mlx5_devlink_max_uc_list_param_unregister(struct devlink *devlink)
+mlx5_devlink_max_uc_list_params_unregister(struct devlink *devlink)
 {
 	struct mlx5_core_dev *dev = devlink_priv(devlink);
 
 	if (!MLX5_CAP_GEN_MAX(dev, log_max_current_uc_list_wr_supported))
 		return;
 
-	devlink_param_unregister(devlink, &max_uc_list_param);
+	devl_params_unregister(devlink, mlx5_devlink_max_uc_list_params,
+			       ARRAY_SIZE(mlx5_devlink_max_uc_list_params));
 }
 
 #define MLX5_TRAP_DROP(_id, _group_id)					\
···
 				    ARRAY_SIZE(mlx5_trap_groups_arr));
 }
 
-int mlx5_devlink_register(struct devlink *devlink)
+int mlx5_devlink_params_register(struct devlink *devlink)
 {
 	struct mlx5_core_dev *dev = devlink_priv(devlink);
 	int err;
 
-	err = devlink_params_register(devlink, mlx5_devlink_params,
-				      ARRAY_SIZE(mlx5_devlink_params));
+	err = devl_params_register(devlink, mlx5_devlink_params,
+				   ARRAY_SIZE(mlx5_devlink_params));
 	if (err)
 		return err;
 
···
 	if (err)
 		goto auxdev_reg_err;
 
-	err = mlx5_devlink_max_uc_list_param_register(devlink);
+	err = mlx5_devlink_max_uc_list_params_register(devlink);
 	if (err)
 		goto max_uc_list_err;
 
···
 max_uc_list_err:
 	mlx5_devlink_auxdev_params_unregister(devlink);
 auxdev_reg_err:
-	devlink_params_unregister(devlink, mlx5_devlink_params,
-				  ARRAY_SIZE(mlx5_devlink_params));
+	devl_params_unregister(devlink, mlx5_devlink_params,
+			       ARRAY_SIZE(mlx5_devlink_params));
 	return err;
 }
 
-void mlx5_devlink_unregister(struct devlink *devlink)
+void mlx5_devlink_params_unregister(struct devlink *devlink)
 {
-	mlx5_devlink_max_uc_list_param_unregister(devlink);
+	mlx5_devlink_max_uc_list_params_unregister(devlink);
 	mlx5_devlink_auxdev_params_unregister(devlink);
-	devlink_params_unregister(devlink, mlx5_devlink_params,
-				  ARRAY_SIZE(mlx5_devlink_params));
+	devl_params_unregister(devlink, mlx5_devlink_params,
+			       ARRAY_SIZE(mlx5_devlink_params));
 }

drivers/net/ethernet/mellanox/mlx5/core/devlink.h

···
 
 struct devlink *mlx5_devlink_alloc(struct device *dev);
 void mlx5_devlink_free(struct devlink *devlink);
-int mlx5_devlink_register(struct devlink *devlink);
-void mlx5_devlink_unregister(struct devlink *devlink);
+int mlx5_devlink_params_register(struct devlink *devlink);
+void mlx5_devlink_params_unregister(struct devlink *devlink);
 
 #endif /* __MLX5_DEVLINK_H__ */

drivers/net/ethernet/mellanox/mlx5/core/eq.c

···
 	union devlink_param_value val;
 	int err;
 
-	err = devlink_param_driverinit_value_get(devlink,
-						 DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE,
-						 &val);
+	err = devl_param_driverinit_value_get(devlink,
+					      DEVLINK_PARAM_GENERIC_ID_EVENT_EQ_SIZE,
+					      &val);
 	if (!err)
 		return val.vu32;
 	mlx5_core_dbg(dev, "Failed to get param. using default. err = %d\n", err);
···
 	union devlink_param_value val;
 	int err;
 
-	err = devlink_param_driverinit_value_get(devlink,
-						 DEVLINK_PARAM_GENERIC_ID_IO_EQ_SIZE,
-						 &val);
+	err = devl_param_driverinit_value_get(devlink,
+					      DEVLINK_PARAM_GENERIC_ID_IO_EQ_SIZE,
+					      &val);
 	if (!err)
 		return val.vu32;
 	mlx5_core_dbg(dev, "Failed to get param. using default. err = %d\n", err);

drivers/net/ethernet/mellanox/mlx5/core/eswitch.c

···
 	union devlink_param_value val;
 	int err;
 
-	err = devlink_param_driverinit_value_get(devlink,
-						 MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM,
-						 &val);
+	err = devl_param_driverinit_value_get(devlink,
+					      MLX5_DEVLINK_PARAM_ID_ESW_LARGE_GROUP_NUM,
+					      &val);
 	if (!err) {
 		esw->params.large_group_num = val.vu32;
 	} else {
···
 	if (err)
 		goto abort;
 
-	err = esw_offloads_init_reps(esw);
+	err = esw_offloads_init(esw);
 	if (err)
 		goto reps_err;
 
···
 	mlx5e_mod_hdr_tbl_destroy(&esw->offloads.mod_hdr);
 	mutex_destroy(&esw->offloads.encap_tbl_lock);
 	mutex_destroy(&esw->offloads.decap_tbl_lock);
-	esw_offloads_cleanup_reps(esw);
+	esw_offloads_cleanup(esw);
 	mlx5_esw_vports_cleanup(esw);
 	kfree(esw);
 }

drivers/net/ethernet/mellanox/mlx5/core/eswitch.h

···
 
 void esw_offloads_disable(struct mlx5_eswitch *esw);
 int esw_offloads_enable(struct mlx5_eswitch *esw);
-void esw_offloads_cleanup_reps(struct mlx5_eswitch *esw);
-int esw_offloads_init_reps(struct mlx5_eswitch *esw);
+void esw_offloads_cleanup(struct mlx5_eswitch *esw);
+int esw_offloads_init(struct mlx5_eswitch *esw);
 
 struct mlx5_flow_handle *
 mlx5_eswitch_add_send_to_vport_meta_rule(struct mlx5_eswitch *esw, u16 vport_num);

drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c

···
 	kfree(rep);
 }
 
-void esw_offloads_cleanup_reps(struct mlx5_eswitch *esw)
+static void esw_offloads_cleanup_reps(struct mlx5_eswitch *esw)
 {
 	struct mlx5_eswitch_rep *rep;
 	unsigned long i;
···
 	xa_destroy(&esw->offloads.vport_reps);
 }
 
-int esw_offloads_init_reps(struct mlx5_eswitch *esw)
+static int esw_offloads_init_reps(struct mlx5_eswitch *esw)
 {
 	struct mlx5_vport *vport;
 	unsigned long i;
···
 err:
 	esw_offloads_cleanup_reps(esw);
 	return err;
+}
+
+static int esw_port_metadata_set(struct devlink *devlink, u32 id,
+				 struct devlink_param_gset_ctx *ctx)
+{
+	struct mlx5_core_dev *dev = devlink_priv(devlink);
+	struct mlx5_eswitch *esw = dev->priv.eswitch;
+	int err = 0;
+
+	down_write(&esw->mode_lock);
+	if (mlx5_esw_is_fdb_created(esw)) {
+		err = -EBUSY;
+		goto done;
+	}
+	if (!mlx5_esw_vport_match_metadata_supported(esw)) {
+		err = -EOPNOTSUPP;
+		goto done;
+	}
+	if (ctx->val.vbool)
+		esw->flags |= MLX5_ESWITCH_VPORT_MATCH_METADATA;
+	else
+		esw->flags &= ~MLX5_ESWITCH_VPORT_MATCH_METADATA;
+done:
+	up_write(&esw->mode_lock);
+	return err;
+}
+
+static int esw_port_metadata_get(struct devlink *devlink, u32 id,
+				 struct devlink_param_gset_ctx *ctx)
+{
+	struct mlx5_core_dev *dev = devlink_priv(devlink);
+
+	ctx->val.vbool = mlx5_eswitch_vport_match_metadata_enabled(dev->priv.eswitch);
+	return 0;
+}
+
+static int esw_port_metadata_validate(struct devlink *devlink, u32 id,
+				      union devlink_param_value val,
+				      struct netlink_ext_ack *extack)
+{
+	struct mlx5_core_dev *dev = devlink_priv(devlink);
+	u8 esw_mode;
+
+	esw_mode = mlx5_eswitch_mode(dev);
+	if (esw_mode == MLX5_ESWITCH_OFFLOADS) {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "E-Switch must either disabled or non switchdev mode");
+		return -EBUSY;
+	}
+	return 0;
+}
+
+static const struct devlink_param esw_devlink_params[] = {
+	DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_ESW_PORT_METADATA,
+			     "esw_port_metadata", DEVLINK_PARAM_TYPE_BOOL,
+			     BIT(DEVLINK_PARAM_CMODE_RUNTIME),
+			     esw_port_metadata_get,
+			     esw_port_metadata_set,
+			     esw_port_metadata_validate),
+};
+
+int esw_offloads_init(struct mlx5_eswitch *esw)
+{
+	int err;
+
+	err = esw_offloads_init_reps(esw);
+	if (err)
+		return err;
+
+	err = devl_params_register(priv_to_devlink(esw->dev),
+				   esw_devlink_params,
+				   ARRAY_SIZE(esw_devlink_params));
+	if (err)
+		goto err_params;
+
+	return 0;
+
+err_params:
+	esw_offloads_cleanup_reps(esw);
+	return err;
+}
+
+void esw_offloads_cleanup(struct mlx5_eswitch *esw)
+{
+	devl_params_unregister(priv_to_devlink(esw->dev),
+			       esw_devlink_params,
+			       ARRAY_SIZE(esw_devlink_params));
+	esw_offloads_cleanup_reps(esw);
 }
 
 static void __esw_offloads_unload_rep(struct mlx5_eswitch *esw,

drivers/net/ethernet/mellanox/mlx5/core/fs_core.c

···
 #include <linux/mlx5/driver.h>
 #include <linux/mlx5/vport.h>
 #include <linux/mlx5/eswitch.h>
+#include <net/devlink.h>
 
 #include "mlx5_core.h"
 #include "fs_core.h"
 #include "fs_cmd.h"
 #include "fs_ft_pool.h"
 #include "diag/fs_tracepoint.h"
+#include "devlink.h"
 
 #define INIT_TREE_NODE_ARRAY_SIZE(...)	(sizeof((struct init_tree_node[]){__VA_ARGS__}) /\
 					 sizeof(struct init_tree_node))
···
 	return err;
 }
 
+static int mlx5_fs_mode_validate(struct devlink *devlink, u32 id,
+				 union devlink_param_value val,
+				 struct netlink_ext_ack *extack)
+{
+	struct mlx5_core_dev *dev = devlink_priv(devlink);
+	char *value = val.vstr;
+	int err = 0;
+
+	if (!strcmp(value, "dmfs")) {
+		return 0;
+	} else if (!strcmp(value, "smfs")) {
+		u8 eswitch_mode;
+		bool smfs_cap;
+
+		eswitch_mode = mlx5_eswitch_mode(dev);
+		smfs_cap = mlx5_fs_dr_is_supported(dev);
+
+		if (!smfs_cap) {
+			err = -EOPNOTSUPP;
+			NL_SET_ERR_MSG_MOD(extack,
+					   "Software managed steering is not supported by current device");
+		}
+
+		else if (eswitch_mode == MLX5_ESWITCH_OFFLOADS) {
+			NL_SET_ERR_MSG_MOD(extack,
+					   "Software managed steering is not supported when eswitch offloads enabled.");
+			err = -EOPNOTSUPP;
+		}
+	} else {
+		NL_SET_ERR_MSG_MOD(extack,
+				   "Bad parameter: supported values are [\"dmfs\", \"smfs\"]");
+		err = -EINVAL;
+	}
+
+	return err;
+}
+
+static int mlx5_fs_mode_set(struct devlink *devlink, u32 id,
+			    struct devlink_param_gset_ctx *ctx)
+{
+	struct mlx5_core_dev *dev = devlink_priv(devlink);
+	enum mlx5_flow_steering_mode mode;
+
+	if (!strcmp(ctx->val.vstr, "smfs"))
+		mode = MLX5_FLOW_STEERING_MODE_SMFS;
+	else
+		mode = MLX5_FLOW_STEERING_MODE_DMFS;
+	dev->priv.steering->mode = mode;
+
+	return 0;
+}
+
+static int mlx5_fs_mode_get(struct devlink *devlink, u32 id,
+			    struct devlink_param_gset_ctx *ctx)
+{
+	struct mlx5_core_dev *dev = devlink_priv(devlink);
+
+	if (dev->priv.steering->mode == MLX5_FLOW_STEERING_MODE_SMFS)
+		strcpy(ctx->val.vstr, "smfs");
+	else
+		strcpy(ctx->val.vstr, "dmfs");
+	return 0;
+}
+
+static const struct devlink_param mlx5_fs_params[] = {
+	DEVLINK_PARAM_DRIVER(MLX5_DEVLINK_PARAM_ID_FLOW_STEERING_MODE,
+			     "flow_steering_mode", DEVLINK_PARAM_TYPE_STRING,
+			     BIT(DEVLINK_PARAM_CMODE_RUNTIME),
+			     mlx5_fs_mode_get, mlx5_fs_mode_set,
+			     mlx5_fs_mode_validate),
+};
+
 void mlx5_fs_core_cleanup(struct mlx5_core_dev *dev)
 {
 	struct mlx5_flow_steering *steering = dev->priv.steering;
···
 	cleanup_root_ns(steering->rdma_rx_root_ns);
 	cleanup_root_ns(steering->rdma_tx_root_ns);
 	cleanup_root_ns(steering->egress_root_ns);
+
+	devl_params_unregister(priv_to_devlink(dev), mlx5_fs_params,
+			       ARRAY_SIZE(mlx5_fs_params));
 }
 
 int mlx5_fs_core_init(struct mlx5_core_dev *dev)
 {
 	struct mlx5_flow_steering *steering = dev->priv.steering;
-	int err = 0;
+	int err;
+
+	err = devl_params_register(priv_to_devlink(dev), mlx5_fs_params,
+				   ARRAY_SIZE(mlx5_fs_params));
+	if (err)
+		return err;
 
 	if ((((MLX5_CAP_GEN(dev, port_type) == MLX5_CAP_PORT_TYPE_ETH) &&
 	      (MLX5_CAP_GEN(dev, nic_flow_table))) ||

drivers/net/ethernet/mellanox/mlx5/core/fw_reset.c

···
 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
 /* Copyright (c) 2020, Mellanox Technologies inc.  All rights reserved. */
 
+#include <devlink.h>
+
 #include "fw_reset.h"
 #include "diag/fw_tracer.h"
 #include "lib/tout.h"
···
 	int ret;
 };
 
-void mlx5_fw_reset_enable_remote_dev_reset_set(struct mlx5_core_dev *dev, bool enable)
+static int mlx5_fw_reset_enable_remote_dev_reset_set(struct devlink *devlink, u32 id,
+						     struct devlink_param_gset_ctx *ctx)
 {
-	struct mlx5_fw_reset *fw_reset = dev->priv.fw_reset;
+	struct mlx5_core_dev *dev = devlink_priv(devlink);
+	struct mlx5_fw_reset *fw_reset;
 
-	if (enable)
+	fw_reset = dev->priv.fw_reset;
+
+	if (ctx->val.vbool)
 		clear_bit(MLX5_FW_RESET_FLAGS_NACK_RESET_REQUEST, &fw_reset->reset_flags);
 	else
 		set_bit(MLX5_FW_RESET_FLAGS_NACK_RESET_REQUEST, &fw_reset->reset_flags);
+	return 0;
 }
 
-bool mlx5_fw_reset_enable_remote_dev_reset_get(struct mlx5_core_dev *dev)
+static int mlx5_fw_reset_enable_remote_dev_reset_get(struct devlink *devlink, u32 id,
+						     struct devlink_param_gset_ctx *ctx)
 {
-	struct mlx5_fw_reset *fw_reset = dev->priv.fw_reset;
+	struct mlx5_core_dev *dev = devlink_priv(devlink);
+	struct mlx5_fw_reset *fw_reset;
 
-	return !test_bit(MLX5_FW_RESET_FLAGS_NACK_RESET_REQUEST, &fw_reset->reset_flags);
+	fw_reset = dev->priv.fw_reset;
+
+	ctx->val.vbool = !test_bit(MLX5_FW_RESET_FLAGS_NACK_RESET_REQUEST,
+				   &fw_reset->reset_flags);
+	return 0;
 }
 
 static int mlx5_reg_mfrl_set(struct mlx5_core_dev *dev, u8 reset_level,
···
 	cancel_work_sync(&fw_reset->reset_abort_work);
 }
 
+static const struct devlink_param mlx5_fw_reset_devlink_params[] = {
+	DEVLINK_PARAM_GENERIC(ENABLE_REMOTE_DEV_RESET, BIT(DEVLINK_PARAM_CMODE_RUNTIME),
+			      mlx5_fw_reset_enable_remote_dev_reset_get,
+			      mlx5_fw_reset_enable_remote_dev_reset_set, NULL),
+};
+
 int mlx5_fw_reset_init(struct mlx5_core_dev *dev)
 {
 	struct mlx5_fw_reset *fw_reset = kzalloc(sizeof(*fw_reset), GFP_KERNEL);
+	int err;
 
 	if (!fw_reset)
 		return -ENOMEM;
···
 
 	fw_reset->dev = dev;
 	dev->priv.fw_reset = fw_reset;
+
+	err = devl_params_register(priv_to_devlink(dev),
+				   mlx5_fw_reset_devlink_params,
+				   ARRAY_SIZE(mlx5_fw_reset_devlink_params));
+	if (err) {
+		destroy_workqueue(fw_reset->wq);
+		kfree(fw_reset);
+		return err;
+	}
 
 	INIT_WORK(&fw_reset->fw_live_patch_work, mlx5_fw_live_patch_event);
 	INIT_WORK(&fw_reset->reset_request_work, mlx5_sync_reset_request_event);
···
 {
 	struct mlx5_fw_reset *fw_reset = dev->priv.fw_reset;
 
+	devl_params_unregister(priv_to_devlink(dev),
+			       mlx5_fw_reset_devlink_params,
+			       ARRAY_SIZE(mlx5_fw_reset_devlink_params));
 	destroy_workqueue(fw_reset->wq);
 	kfree(dev->priv.fw_reset);
 }

drivers/net/ethernet/mellanox/mlx5/core/fw_reset.h

···
 
 #include "mlx5_core.h"
 
-void mlx5_fw_reset_enable_remote_dev_reset_set(struct mlx5_core_dev *dev, bool enable);
-bool mlx5_fw_reset_enable_remote_dev_reset_get(struct mlx5_core_dev *dev);
 int mlx5_fw_reset_query(struct mlx5_core_dev *dev, u8 *reset_level, u8 *reset_type);
 int mlx5_fw_reset_set_reset_sync(struct mlx5_core_dev *dev, u8 reset_type_sel,
 				 struct netlink_ext_ack *extack);

drivers/net/ethernet/mellanox/mlx5/core/main.c

···
 	union devlink_param_value val;
 	int err;
 
-	err = devlink_param_driverinit_value_get(devlink,
-						 DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
-						 &val);
+	err = devl_param_driverinit_value_get(devlink,
+					      DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
+					      &val);
 	if (!err)
 		return val.vu32;
 	mlx5_core_dbg(dev, "Failed to get param. err = %d\n", err);
···
 	union devlink_param_value val;
 	int err;
 
-	err = devlink_param_driverinit_value_get(devlink,
-						 DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
-						 &val);
+	err = devl_param_driverinit_value_get(devlink,
+					      DEVLINK_PARAM_GENERIC_ID_ENABLE_ROCE,
+					      &val);
 
 	if (!err)
 		return val.vbool;
···
 
 	set_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state);
 
-	err = mlx5_devlink_register(priv_to_devlink(dev));
+	err = mlx5_devlink_params_register(priv_to_devlink(dev));
 	if (err)
-		goto err_devlink_reg;
+		goto err_devlink_params_reg;
 
 	err = mlx5_register_device(dev);
 	if (err)
···
 	return 0;
 
 err_register:
-	mlx5_devlink_unregister(priv_to_devlink(dev));
-err_devlink_reg:
+	mlx5_devlink_params_unregister(priv_to_devlink(dev));
+err_devlink_params_reg:
 	clear_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state);
 	mlx5_unload(dev);
 err_load:
···
 	mutex_lock(&dev->intf_state_mutex);
 
 	mlx5_unregister_device(dev);
-	mlx5_devlink_unregister(priv_to_devlink(dev));
+	mlx5_devlink_params_unregister(priv_to_devlink(dev));
 
 	if (!test_bit(MLX5_INTERFACE_STATE_UP, &dev->intf_state)) {
 		mlx5_core_warn(dev, "%s: interface is down, NOP\n",

drivers/net/ethernet/mellanox/mlxsw/core.c

···
 		return 0;
 
 	/* Don't check if devlink 'fw_load_policy' param is 'flash' */
-	err = devlink_param_driverinit_value_get(priv_to_devlink(mlxsw_core),
-						 DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
-						 &value);
+	err = devl_param_driverinit_value_get(priv_to_devlink(mlxsw_core),
+					      DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
+					      &value);
 	if (err)
 		return err;
 	if (value.vu8 == DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_FLASH)
···
 	union devlink_param_value value;
 	int err;
 
-	err = devlink_params_register(devlink, mlxsw_core_fw_devlink_params,
-				      ARRAY_SIZE(mlxsw_core_fw_devlink_params));
+	err = devl_params_register(devlink, mlxsw_core_fw_devlink_params,
+				   ARRAY_SIZE(mlxsw_core_fw_devlink_params));
 	if (err)
 		return err;
 
 	value.vu8 = DEVLINK_PARAM_FW_LOAD_POLICY_VALUE_DRIVER;
-	devlink_param_driverinit_value_set(devlink, DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY, value);
+	devl_param_driverinit_value_set(devlink,
+					DEVLINK_PARAM_GENERIC_ID_FW_LOAD_POLICY,
+					value);
 	return 0;
 }
 
 static void mlxsw_core_fw_params_unregister(struct mlxsw_core *mlxsw_core)
 {
-	devlink_params_unregister(priv_to_devlink(mlxsw_core), mlxsw_core_fw_devlink_params,
-				  ARRAY_SIZE(mlxsw_core_fw_devlink_params));
+	devl_params_unregister(priv_to_devlink(mlxsw_core), mlxsw_core_fw_devlink_params,
+			       ARRAY_SIZE(mlxsw_core_fw_devlink_params));
 }
 
 static void *__dl_port(struct devlink_port *devlink_port)

drivers/net/ethernet/mellanox/mlxsw/spectrum.c

···
 	union devlink_param_value value;
 	int err;
 
-	err = devlink_params_register(devlink, mlxsw_sp2_devlink_params,
-				      ARRAY_SIZE(mlxsw_sp2_devlink_params));
+	err = devl_params_register(devlink, mlxsw_sp2_devlink_params,
+				   ARRAY_SIZE(mlxsw_sp2_devlink_params));
 	if (err)
 		return err;
 
 	value.vu32 = 0;
-	devlink_param_driverinit_value_set(devlink,
-					   MLXSW_DEVLINK_PARAM_ID_ACL_REGION_REHASH_INTERVAL,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					MLXSW_DEVLINK_PARAM_ID_ACL_REGION_REHASH_INTERVAL,
+					value);
 	return 0;
 }
 
 static void mlxsw_sp2_params_unregister(struct mlxsw_core *mlxsw_core)
 {
-	devlink_params_unregister(priv_to_devlink(mlxsw_core),
-				  mlxsw_sp2_devlink_params,
-				  ARRAY_SIZE(mlxsw_sp2_devlink_params));
+	devl_params_unregister(priv_to_devlink(mlxsw_core),
+			       mlxsw_sp2_devlink_params,
+			       ARRAY_SIZE(mlxsw_sp2_devlink_params));
 }
 
 static void mlxsw_sp_ptp_transmitted(struct mlxsw_core *mlxsw_core,

drivers/net/ethernet/netronome/nfp/devlink_param.c

···
 	if (err <= 0)
 		return err;
 
-	return devlink_params_register(devlink, nfp_devlink_params,
-				       ARRAY_SIZE(nfp_devlink_params));
+	return devl_params_register(devlink, nfp_devlink_params,
+				    ARRAY_SIZE(nfp_devlink_params));
 }
 
 void nfp_devlink_params_unregister(struct nfp_pf *pf)
···
 	if (err <= 0)
 		return;
 
-	devlink_params_unregister(priv_to_devlink(pf), nfp_devlink_params,
-				  ARRAY_SIZE(nfp_devlink_params));
+	devl_params_unregister(priv_to_devlink(pf), nfp_devlink_params,
+			       ARRAY_SIZE(nfp_devlink_params));
 }

drivers/net/ethernet/netronome/nfp/nfp_net_main.c

···
 	if (err)
 		goto err_devlink_unreg;
 
+	devl_lock(devlink);
 	err = nfp_devlink_params_register(pf);
 	if (err)
 		goto err_shared_buf_unreg;
 
-	devl_lock(devlink);
 	pf->ddir = nfp_net_debugfs_device_add(pf->pdev);
 
 	/* Allocate the vnics and do basic init */
···
 	nfp_net_pf_free_vnics(pf);
 err_clean_ddir:
 	nfp_net_debugfs_dir_clean(&pf->ddir);
-	devl_unlock(devlink);
 	nfp_devlink_params_unregister(pf);
 err_shared_buf_unreg:
+	devl_unlock(devlink);
 	nfp_shared_buf_unregister(pf);
 err_devlink_unreg:
 	cancel_work_sync(&pf->port_refresh_work);
···
 	/* stop app first, to avoid double free of ctrl vNIC's ddir */
 	nfp_net_debugfs_dir_clean(&pf->ddir);
 
+	nfp_devlink_params_unregister(pf);
+
 	devl_unlock(devlink);
 
-	nfp_devlink_params_unregister(pf);
 	nfp_shared_buf_unregister(pf);
 
 	nfp_net_pf_free_irqs(pf);

drivers/net/ethernet/qlogic/qed/qed_devlink.c

···
 
 struct devlink *qed_devlink_register(struct qed_dev *cdev)
 {
-	union devlink_param_value value;
 	struct qed_devlink *qdevlink;
 	struct devlink *dl;
 	int rc;
···
 				     ARRAY_SIZE(qed_devlink_params));
 	if (rc)
 		goto err_unregister;
-
-	value.vbool = false;
-	devlink_param_driverinit_value_set(dl,
-					   QED_DEVLINK_PARAM_ID_IWARP_CMT,
-					   value);
 
 	cdev->iwarp_cmt = false;
 

drivers/net/netdevsim/dev.c

···
 	union devlink_param_value value;
 
 	value.vu32 = nsim_dev->max_macs;
-	devlink_param_driverinit_value_set(devlink,
-					   DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
+					value);
 	value.vbool = nsim_dev->test1;
-	devlink_param_driverinit_value_set(devlink,
-					   NSIM_DEVLINK_PARAM_ID_TEST1,
-					   value);
+	devl_param_driverinit_value_set(devlink,
+					NSIM_DEVLINK_PARAM_ID_TEST1,
+					value);
 }
 
 static void nsim_devlink_param_load_driverinit_values(struct devlink *devlink)
···
 	union devlink_param_value saved_value;
 	int err;
 
-	err = devlink_param_driverinit_value_get(devlink,
-						 DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
-						 &saved_value);
+	err = devl_param_driverinit_value_get(devlink,
+					      DEVLINK_PARAM_GENERIC_ID_MAX_MACS,
+					      &saved_value);
 	if (!err)
 		nsim_dev->max_macs = saved_value.vu32;
-	err = devlink_param_driverinit_value_get(devlink,
-						 NSIM_DEVLINK_PARAM_ID_TEST1,
-						 &saved_value);
+	err = devl_param_driverinit_value_get(devlink,
+					      NSIM_DEVLINK_PARAM_ID_TEST1,
+					      &saved_value);
 	if (!err)
 		nsim_dev->test1 = saved_value.vbool;
 }
···
 	if (err)
 		goto err_dl_unregister;
 
-	err = devlink_params_register(devlink, nsim_devlink_params,
-				      ARRAY_SIZE(nsim_devlink_params));
+	err = devl_params_register(devlink, nsim_devlink_params,
+				   ARRAY_SIZE(nsim_devlink_params));
 	if (err)
 		goto err_resource_unregister;
 	nsim_devlink_set_params_init_values(nsim_dev, devlink);
···
 err_dummy_region_exit:
 	nsim_dev_dummy_region_exit(nsim_dev);
 err_params_unregister:
-	devlink_params_unregister(devlink, nsim_devlink_params,
-				  ARRAY_SIZE(nsim_devlink_params));
+	devl_params_unregister(devlink, nsim_devlink_params,
+			       ARRAY_SIZE(nsim_devlink_params));
 err_resource_unregister:
 	devl_resources_unregister(devlink);
 err_dl_unregister:
···
 
 	nsim_bpf_dev_exit(nsim_dev);
 	nsim_dev_debugfs_exit(nsim_dev);
-	devlink_params_unregister(devlink, nsim_devlink_params,
-				  ARRAY_SIZE(nsim_devlink_params));
+	devl_params_unregister(devlink, nsim_devlink_params,
+			       ARRAY_SIZE(nsim_devlink_params));
 	devl_resources_unregister(devlink);
 	devl_unregister(devlink);
 	kfree(nsim_dev->vfconfigs);

include/net/devlink.h

···
 
 void devlink_resource_occ_get_unregister(struct devlink *devlink,
 					 u64 resource_id);
+int devl_params_register(struct devlink *devlink,
+			 const struct devlink_param *params,
+			 size_t params_count);
 int devlink_params_register(struct devlink *devlink,
+			    const struct devlink_param *params,
+			    size_t params_count);
+void devl_params_unregister(struct devlink *devlink,
 			    const struct devlink_param *params,
 			    size_t params_count);
 void devlink_params_unregister(struct devlink *devlink,
 			       const struct devlink_param *params,
 			       size_t params_count);
-int devlink_param_register(struct devlink *devlink,
-			   const struct devlink_param *param);
-void devlink_param_unregister(struct devlink *devlink,
-			      const struct devlink_param *param);
-int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
-				       union devlink_param_value *init_val);
-int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
-				       union devlink_param_value init_val);
-void devlink_param_value_changed(struct devlink *devlink, u32 param_id);
+int devl_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
+				    union devlink_param_value *init_val);
+void devl_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
+				     union devlink_param_value init_val);
+void devl_param_value_changed(struct devlink *devlink, u32 param_id);
 struct devlink_region *devl_region_create(struct devlink *devlink,
 					  const struct devlink_region_ops *ops,
 					  u32 region_max_snapshots,

net/devlink/leftover.c

···
 		return devlink_param_driver_verify(param);
 }
 
-/**
- *	devlink_params_register - register configuration parameters
- *
- *	@devlink: devlink
- *	@params: configuration parameters array
- *	@params_count: number of parameters provided
- *
- *	Register the configuration parameters supported by the driver.
- */
-int devlink_params_register(struct devlink *devlink,
-			    const struct devlink_param *params,
-			    size_t params_count)
-{
-	const struct devlink_param *param = params;
-	int i, err;
-
-	for (i = 0; i < params_count; i++, param++) {
-		err = devlink_param_register(devlink, param);
-		if (err)
-			goto rollback;
-	}
-	return 0;
-
-rollback:
-	if (!i)
-		return err;
-
-	for (param--; i > 0; i--, param--)
-		devlink_param_unregister(devlink, param);
-	return err;
-}
-EXPORT_SYMBOL_GPL(devlink_params_register);
-
-/**
- *	devlink_params_unregister - unregister configuration parameters
- *	@devlink: devlink
- *	@params: configuration parameters to unregister
- *	@params_count: number of parameters provided
- */
-void devlink_params_unregister(struct devlink *devlink,
-			       const struct devlink_param *params,
-			       size_t params_count)
-{
-	const struct devlink_param *param = params;
-	int i;
-
-	for (i = 0; i < params_count; i++, param++)
-		devlink_param_unregister(devlink, param);
-}
-EXPORT_SYMBOL_GPL(devlink_params_unregister);
-
-/**
- * devlink_param_register - register one configuration parameter
- *
- * @devlink: devlink
- * @param: one configuration parameter
- *
- * Register the configuration parameter supported by the driver.
- * Return: returns 0 on successful registration or error code otherwise.
- */
-int devlink_param_register(struct devlink *devlink,
-			   const struct devlink_param *param)
+static int devlink_param_register(struct devlink *devlink,
+				  const struct devlink_param *param)
 {
 	struct devlink_param_item *param_item;
 
···
 	devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW);
 	return 0;
 }
-EXPORT_SYMBOL_GPL(devlink_param_register);
 
-/**
- * devlink_param_unregister - unregister one configuration parameter
- * @devlink: devlink
- * @param: configuration parameter to unregister
- */
-void devlink_param_unregister(struct devlink *devlink,
-			      const struct devlink_param *param)
+static void devlink_param_unregister(struct devlink *devlink,
+				     const struct devlink_param *param)
 {
 	struct devlink_param_item *param_item;
 
 	param_item =
 		devlink_param_find_by_name(&devlink->param_list, param->name);
-	WARN_ON(!param_item);
+	if (WARN_ON(!param_item))
+		return;
 	devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_DEL);
 	list_del(&param_item->list);
 	kfree(param_item);
 }
-EXPORT_SYMBOL_GPL(devlink_param_unregister);
 
 /**
- *	devlink_param_driverinit_value_get - get configuration parameter
- *					     value for driver initializing
+ *	devl_params_register - register configuration parameters
+ *
+ *	@devlink: devlink
+ *	@params: configuration parameters array
+ *	@params_count: number of parameters provided
+ *
+ *	Register the configuration parameters supported by the driver.
+ */
+int devl_params_register(struct devlink *devlink,
+			 const struct devlink_param *params,
+			 size_t params_count)
+{
+	const struct devlink_param *param = params;
+	int i, err;
+
+	lockdep_assert_held(&devlink->lock);
+
+	for (i = 0; i < params_count; i++, param++) {
+		err = devlink_param_register(devlink, param);
+		if (err)
+			goto rollback;
+	}
+	return 0;
+
+rollback:
+	if (!i)
+		return err;
+
+	for (param--; i > 0; i--, param--)
+		devlink_param_unregister(devlink, param);
+	return err;
+}
+EXPORT_SYMBOL_GPL(devl_params_register);
+
+int devlink_params_register(struct devlink *devlink,
+			    const struct devlink_param *params,
+			    size_t params_count)
+{
+	int err;
+
+	devl_lock(devlink);
+	err = devl_params_register(devlink, params, params_count);
+	devl_unlock(devlink);
+	return err;
+}
+EXPORT_SYMBOL_GPL(devlink_params_register);
+
+/**
+ *	devl_params_unregister - unregister configuration parameters
+ *	@devlink: devlink
+ *	@params: configuration parameters to unregister
+ *	@params_count: number of parameters provided
+ */
+void devl_params_unregister(struct devlink *devlink,
+			    const struct devlink_param *params,
+			    size_t params_count)
+{
+	const struct devlink_param *param = params;
+	int i;
+
+	lockdep_assert_held(&devlink->lock);
+
+	for (i = 0; i < params_count; i++, param++)
+		devlink_param_unregister(devlink, param);
+}
+EXPORT_SYMBOL_GPL(devl_params_unregister);
+
+void devlink_params_unregister(struct devlink *devlink,
+			       const struct devlink_param *params,
+			       size_t params_count)
+{
+	devl_lock(devlink);
+	devl_params_unregister(devlink, params, params_count);
+	devl_unlock(devlink);
+}
+EXPORT_SYMBOL_GPL(devlink_params_unregister);
+
+/**
+ *	devl_param_driverinit_value_get - get configuration parameter
+ *					  value for driver initializing
  *
  *	@devlink: devlink
  *	@param_id: parameter ID
···
  *	This function should be used by the driver to get driverinit
  *	configuration for initialization after reload command.
  */
-int devlink_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
-				       union devlink_param_value *init_val)
+int devl_param_driverinit_value_get(struct devlink *devlink, u32 param_id,
+				    union devlink_param_value *init_val)
 {
 	struct devlink_param_item *param_item;
 
-	if (!devlink_reload_supported(devlink->ops))
+	lockdep_assert_held(&devlink->lock);
+
+	if (WARN_ON(!devlink_reload_supported(devlink->ops)))
 		return -EOPNOTSUPP;
 
 	param_item = devlink_param_find_by_id(&devlink->param_list, param_id);
 	if (!param_item)
 		return -EINVAL;
 
-	if (!param_item->driverinit_value_valid ||
-	    !devlink_param_cmode_is_supported(param_item->param,
-					      DEVLINK_PARAM_CMODE_DRIVERINIT))
+	if (!param_item->driverinit_value_valid)
+		return -EOPNOTSUPP;
+
+	if (WARN_ON(!devlink_param_cmode_is_supported(param_item->param,
+						      DEVLINK_PARAM_CMODE_DRIVERINIT)))
 		return -EOPNOTSUPP;
 
 	if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING)
···
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_get);
+EXPORT_SYMBOL_GPL(devl_param_driverinit_value_get);
 
 /**
- *	devlink_param_driverinit_value_set - set value of configuration
- *					     parameter for driverinit
- *					     configuration mode
+ *	devl_param_driverinit_value_set - set value of configuration
+ *					  parameter for driverinit
+ *					  configuration mode
  *
  *	@devlink: devlink
  *	@param_id: parameter ID
···
  *	This function should be used by the driver to set driverinit
  *	configuration mode default value.
  */
-int devlink_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
-				       union devlink_param_value init_val)
+void devl_param_driverinit_value_set(struct devlink *devlink, u32 param_id,
+				     union devlink_param_value init_val)
 {
 	struct devlink_param_item *param_item;
 
 	param_item = devlink_param_find_by_id(&devlink->param_list, param_id);
-	if (!param_item)
-		return -EINVAL;
+	if (WARN_ON(!param_item))
+		return;
 
-	if (!devlink_param_cmode_is_supported(param_item->param,
-					      DEVLINK_PARAM_CMODE_DRIVERINIT))
-		return -EOPNOTSUPP;
+	if (WARN_ON(!devlink_param_cmode_is_supported(param_item->param,
+						      DEVLINK_PARAM_CMODE_DRIVERINIT)))
+		return;
 
 	if (param_item->param->type == DEVLINK_PARAM_TYPE_STRING)
 		strcpy(param_item->driverinit_value.vstr, init_val.vstr);
···
 	param_item->driverinit_value_valid = true;
 
 	devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW);
-	return 0;
 }
-EXPORT_SYMBOL_GPL(devlink_param_driverinit_value_set);
+EXPORT_SYMBOL_GPL(devl_param_driverinit_value_set);
 
 /**
- *	devlink_param_value_changed - notify devlink on a parameter's value
- *				      change. Should be called by the driver
- *				      right after the change.
+ *	devl_param_value_changed - notify devlink on a parameter's value
+ *				   change. Should be called by the driver
+ *				   right after the change.
  *
  *	@devlink: devlink
  *	@param_id: parameter ID
···
  *	change, excluding driverinit configuration mode.
  *	For driverinit configuration mode driver should use the function
  */
-void devlink_param_value_changed(struct devlink *devlink, u32 param_id)
+void devl_param_value_changed(struct devlink *devlink, u32 param_id)
 {
 	struct devlink_param_item *param_item;
 
···
 
 	devlink_param_notify(devlink, 0, param_item, DEVLINK_CMD_PARAM_NEW);
 }
-EXPORT_SYMBOL_GPL(devlink_param_value_changed);
+EXPORT_SYMBOL_GPL(devl_param_value_changed);
 
 /**
  * devl_region_create - create a new address region