1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB 2 /* Copyright (c) 2020, Mellanox Technologies inc. All rights reserved. */ 3 4 #include "en/devlink.h" 5 #include "eswitch.h" 6 7 static const struct devlink_ops mlx5e_devlink_ops = { 8 }; 9 10 struct mlx5e_dev *mlx5e_create_devlink(struct device *dev, 11 struct mlx5_core_dev *mdev) 12 { 13 struct mlx5e_dev *mlx5e_dev; 14 struct devlink *devlink; 15 int err; 16 17 devlink = devlink_alloc_ns(&mlx5e_devlink_ops, sizeof(*mlx5e_dev), 18 devlink_net(priv_to_devlink(mdev)), dev); 19 if (!devlink) 20 return ERR_PTR(-ENOMEM); 21 22 err = devl_nested_devlink_set(priv_to_devlink(mdev), devlink); 23 if (err) { 24 devlink_free(devlink); 25 return ERR_PTR(err); 26 } 27 28 devlink_register(devlink); 29 return devlink_priv(devlink); 30 } 31 32 void mlx5e_destroy_devlink(struct mlx5e_dev *mlx5e_dev) 33 { 34 struct devlink *devlink = priv_to_devlink(mlx5e_dev); 35 36 devlink_unregister(devlink); 37 devlink_free(devlink); 38 } 39 40 static void 41 mlx5e_devlink_get_port_parent_id(struct mlx5_core_dev *dev, struct netdev_phys_item_id *ppid) 42 { 43 BUILD_BUG_ON(MLX5_SW_IMAGE_GUID_MAX_BYTES > MAX_PHYS_ITEM_ID_LEN); 44 mlx5_query_nic_sw_system_image_guid(dev, ppid->id, &ppid->id_len); 45 } 46 47 int mlx5e_devlink_port_register(struct mlx5e_dev *mlx5e_dev, 48 struct mlx5_core_dev *mdev) 49 { 50 struct devlink *devlink = priv_to_devlink(mlx5e_dev); 51 struct devlink_port_attrs attrs = {}; 52 struct netdev_phys_item_id ppid = {}; 53 unsigned int dl_port_index; 54 55 if (mlx5_core_is_pf(mdev)) { 56 attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; 57 attrs.phys.port_number = mlx5_get_dev_index(mdev); 58 if (MLX5_ESWITCH_MANAGER(mdev)) { 59 mlx5e_devlink_get_port_parent_id(mdev, &ppid); 60 memcpy(attrs.switch_id.id, ppid.id, ppid.id_len); 61 attrs.switch_id.id_len = ppid.id_len; 62 } 63 dl_port_index = mlx5_esw_vport_to_devlink_port_index(mdev, 64 MLX5_VPORT_UPLINK); 65 } else { 66 attrs.flavour = DEVLINK_PORT_FLAVOUR_VIRTUAL; 67 dl_port_index = mlx5_esw_vport_to_devlink_port_index(mdev, 0); 68 } 69 70 devlink_port_attrs_set(&mlx5e_dev->dl_port, &attrs); 71 72 return devlink_port_register(devlink, &mlx5e_dev->dl_port, 73 dl_port_index); 74 } 75 76 void mlx5e_devlink_port_unregister(struct mlx5e_dev *mlx5e_dev) 77 { 78 devlink_port_unregister(&mlx5e_dev->dl_port); 79 } 80