| // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB |
| /* Copyright (c) 2021 Mellanox Technologies. */ |
| |
| #include <linux/netdevice.h> |
| #include <linux/if_bridge.h> |
| #include <net/netevent.h> |
| #include <net/switchdev.h> |
| #include "bridge.h" |
| #include "esw/bridge.h" |
| #include "en_rep.h" |
| |
| #define MLX5_ESW_BRIDGE_UPDATE_INTERVAL 1000 |
| |
| struct mlx5_bridge_switchdev_fdb_work { |
| struct work_struct work; |
| struct switchdev_notifier_fdb_info fdb_info; |
| struct net_device *dev; |
| struct mlx5_esw_bridge_offloads *br_offloads; |
| bool add; |
| }; |
| |
| static bool mlx5_esw_bridge_dev_same_esw(struct net_device *dev, struct mlx5_eswitch *esw) |
| { |
| struct mlx5e_priv *priv = netdev_priv(dev); |
| |
| return esw == priv->mdev->priv.eswitch; |
| } |
| |
| static bool mlx5_esw_bridge_dev_same_hw(struct net_device *dev, struct mlx5_eswitch *esw) |
| { |
| struct mlx5e_priv *priv = netdev_priv(dev); |
| struct mlx5_core_dev *mdev, *esw_mdev; |
| u64 system_guid, esw_system_guid; |
| |
| mdev = priv->mdev; |
| esw_mdev = esw->dev; |
| |
| system_guid = mlx5_query_nic_system_image_guid(mdev); |
| esw_system_guid = mlx5_query_nic_system_image_guid(esw_mdev); |
| |
| return system_guid == esw_system_guid; |
| } |
| |
| static struct net_device * |
| mlx5_esw_bridge_lag_rep_get(struct net_device *dev, struct mlx5_eswitch *esw) |
| { |
| struct net_device *lower; |
| struct list_head *iter; |
| |
| netdev_for_each_lower_dev(dev, lower, iter) { |
| struct mlx5_core_dev *mdev; |
| struct mlx5e_priv *priv; |
| |
| if (!mlx5e_eswitch_rep(lower)) |
| continue; |
| |
| priv = netdev_priv(lower); |
| mdev = priv->mdev; |
| if (mlx5_lag_is_shared_fdb(mdev) && mlx5_esw_bridge_dev_same_esw(lower, esw)) |
| return lower; |
| } |
| |
| return NULL; |
| } |
| |
| static struct net_device * |
| mlx5_esw_bridge_rep_vport_num_vhca_id_get(struct net_device *dev, struct mlx5_eswitch *esw, |
| u16 *vport_num, u16 *esw_owner_vhca_id) |
| { |
| struct mlx5e_rep_priv *rpriv; |
| struct mlx5e_priv *priv; |
| |
| if (netif_is_lag_master(dev)) |
| dev = mlx5_esw_bridge_lag_rep_get(dev, esw); |
| |
| if (!dev || !mlx5e_eswitch_rep(dev) || !mlx5_esw_bridge_dev_same_hw(dev, esw)) |
| return NULL; |
| |
| priv = netdev_priv(dev); |
| |
| if (!priv->mdev->priv.eswitch->br_offloads) |
| return NULL; |
| |
| rpriv = priv->ppriv; |
| *vport_num = rpriv->rep->vport; |
| *esw_owner_vhca_id = MLX5_CAP_GEN(priv->mdev, vhca_id); |
| return dev; |
| } |
| |
| static struct net_device * |
| mlx5_esw_bridge_lower_rep_vport_num_vhca_id_get(struct net_device *dev, struct mlx5_eswitch *esw, |
| u16 *vport_num, u16 *esw_owner_vhca_id) |
| { |
| struct net_device *lower_dev; |
| struct list_head *iter; |
| |
| if (netif_is_lag_master(dev) || mlx5e_eswitch_rep(dev)) |
| return mlx5_esw_bridge_rep_vport_num_vhca_id_get(dev, esw, vport_num, |
| esw_owner_vhca_id); |
| |
| netdev_for_each_lower_dev(dev, lower_dev, iter) { |
| struct net_device *rep; |
| |
| if (netif_is_bridge_master(lower_dev)) |
| continue; |
| |
| rep = mlx5_esw_bridge_lower_rep_vport_num_vhca_id_get(lower_dev, esw, vport_num, |
| esw_owner_vhca_id); |
| if (rep) |
| return rep; |
| } |
| |
| return NULL; |
| } |
| |
| static bool mlx5_esw_bridge_is_local(struct net_device *dev, struct net_device *rep, |
| struct mlx5_eswitch *esw) |
| { |
| struct mlx5_core_dev *mdev; |
| struct mlx5e_priv *priv; |
| |
| if (!mlx5_esw_bridge_dev_same_esw(rep, esw)) |
| return false; |
| |
| priv = netdev_priv(rep); |
| mdev = priv->mdev; |
| if (netif_is_lag_master(dev)) |
| return mlx5_lag_is_shared_fdb(mdev) && mlx5_lag_is_master(mdev); |
| return true; |
| } |
| |
| static int mlx5_esw_bridge_port_changeupper(struct notifier_block *nb, void *ptr) |
| { |
| struct mlx5_esw_bridge_offloads *br_offloads = container_of(nb, |
| struct mlx5_esw_bridge_offloads, |
| netdev_nb); |
| struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
| struct netdev_notifier_changeupper_info *info = ptr; |
| struct net_device *upper = info->upper_dev, *rep; |
| struct mlx5_eswitch *esw = br_offloads->esw; |
| u16 vport_num, esw_owner_vhca_id; |
| struct netlink_ext_ack *extack; |
| int err = 0; |
| |
| if (!netif_is_bridge_master(upper)) |
| return 0; |
| |
| rep = mlx5_esw_bridge_rep_vport_num_vhca_id_get(dev, esw, &vport_num, &esw_owner_vhca_id); |
| if (!rep) |
| return 0; |
| |
| extack = netdev_notifier_info_to_extack(&info->info); |
| |
| if (mlx5_esw_bridge_is_local(dev, rep, esw)) |
| err = info->linking ? |
| mlx5_esw_bridge_vport_link(upper, vport_num, esw_owner_vhca_id, |
| br_offloads, extack) : |
| mlx5_esw_bridge_vport_unlink(upper, vport_num, esw_owner_vhca_id, |
| br_offloads, extack); |
| else if (mlx5_esw_bridge_dev_same_hw(rep, esw)) |
| err = info->linking ? |
| mlx5_esw_bridge_vport_peer_link(upper, vport_num, esw_owner_vhca_id, |
| br_offloads, extack) : |
| mlx5_esw_bridge_vport_peer_unlink(upper, vport_num, esw_owner_vhca_id, |
| br_offloads, extack); |
| |
| return err; |
| } |
| |
| static int |
| mlx5_esw_bridge_changeupper_validate_netdev(void *ptr) |
| { |
| struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
| struct netdev_notifier_changeupper_info *info = ptr; |
| struct net_device *upper = info->upper_dev; |
| struct net_device *lower; |
| struct list_head *iter; |
| |
| if (!netif_is_bridge_master(upper) || !netif_is_lag_master(dev)) |
| return 0; |
| |
| netdev_for_each_lower_dev(dev, lower, iter) { |
| struct mlx5_core_dev *mdev; |
| struct mlx5e_priv *priv; |
| |
| if (!mlx5e_eswitch_rep(lower)) |
| continue; |
| |
| priv = netdev_priv(lower); |
| mdev = priv->mdev; |
| if (!mlx5_lag_is_active(mdev)) |
| return -EAGAIN; |
| if (!mlx5_lag_is_shared_fdb(mdev)) |
| return -EOPNOTSUPP; |
| } |
| |
| return 0; |
| } |
| |
| static int mlx5_esw_bridge_switchdev_port_event(struct notifier_block *nb, |
| unsigned long event, void *ptr) |
| { |
| int err = 0; |
| |
| switch (event) { |
| case NETDEV_PRECHANGEUPPER: |
| err = mlx5_esw_bridge_changeupper_validate_netdev(ptr); |
| break; |
| |
| case NETDEV_CHANGEUPPER: |
| err = mlx5_esw_bridge_port_changeupper(nb, ptr); |
| break; |
| } |
| |
| return notifier_from_errno(err); |
| } |
| |
| static int |
| mlx5_esw_bridge_port_obj_add(struct net_device *dev, |
| struct switchdev_notifier_port_obj_info *port_obj_info, |
| struct mlx5_esw_bridge_offloads *br_offloads) |
| { |
| struct netlink_ext_ack *extack = switchdev_notifier_info_to_extack(&port_obj_info->info); |
| const struct switchdev_obj *obj = port_obj_info->obj; |
| const struct switchdev_obj_port_vlan *vlan; |
| const struct switchdev_obj_port_mdb *mdb; |
| u16 vport_num, esw_owner_vhca_id; |
| int err; |
| |
| if (!mlx5_esw_bridge_rep_vport_num_vhca_id_get(dev, br_offloads->esw, &vport_num, |
| &esw_owner_vhca_id)) |
| return 0; |
| |
| port_obj_info->handled = true; |
| |
| switch (obj->id) { |
| case SWITCHDEV_OBJ_ID_PORT_VLAN: |
| vlan = SWITCHDEV_OBJ_PORT_VLAN(obj); |
| err = mlx5_esw_bridge_port_vlan_add(vport_num, esw_owner_vhca_id, vlan->vid, |
| vlan->flags, br_offloads, extack); |
| break; |
| case SWITCHDEV_OBJ_ID_PORT_MDB: |
| mdb = SWITCHDEV_OBJ_PORT_MDB(obj); |
| err = mlx5_esw_bridge_port_mdb_add(dev, vport_num, esw_owner_vhca_id, mdb->addr, |
| mdb->vid, br_offloads, extack); |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| return err; |
| } |
| |
| static int |
| mlx5_esw_bridge_port_obj_del(struct net_device *dev, |
| struct switchdev_notifier_port_obj_info *port_obj_info, |
| struct mlx5_esw_bridge_offloads *br_offloads) |
| { |
| const struct switchdev_obj *obj = port_obj_info->obj; |
| const struct switchdev_obj_port_vlan *vlan; |
| const struct switchdev_obj_port_mdb *mdb; |
| u16 vport_num, esw_owner_vhca_id; |
| |
| if (!mlx5_esw_bridge_rep_vport_num_vhca_id_get(dev, br_offloads->esw, &vport_num, |
| &esw_owner_vhca_id)) |
| return 0; |
| |
| port_obj_info->handled = true; |
| |
| switch (obj->id) { |
| case SWITCHDEV_OBJ_ID_PORT_VLAN: |
| vlan = SWITCHDEV_OBJ_PORT_VLAN(obj); |
| mlx5_esw_bridge_port_vlan_del(vport_num, esw_owner_vhca_id, vlan->vid, br_offloads); |
| break; |
| case SWITCHDEV_OBJ_ID_PORT_MDB: |
| mdb = SWITCHDEV_OBJ_PORT_MDB(obj); |
| mlx5_esw_bridge_port_mdb_del(dev, vport_num, esw_owner_vhca_id, mdb->addr, mdb->vid, |
| br_offloads); |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| return 0; |
| } |
| |
| static int |
| mlx5_esw_bridge_port_obj_attr_set(struct net_device *dev, |
| struct switchdev_notifier_port_attr_info *port_attr_info, |
| struct mlx5_esw_bridge_offloads *br_offloads) |
| { |
| struct netlink_ext_ack *extack = switchdev_notifier_info_to_extack(&port_attr_info->info); |
| const struct switchdev_attr *attr = port_attr_info->attr; |
| u16 vport_num, esw_owner_vhca_id; |
| int err = 0; |
| |
| if (!mlx5_esw_bridge_lower_rep_vport_num_vhca_id_get(dev, br_offloads->esw, &vport_num, |
| &esw_owner_vhca_id)) |
| return 0; |
| |
| port_attr_info->handled = true; |
| |
| switch (attr->id) { |
| case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS: |
| if (attr->u.brport_flags.mask & ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD)) { |
| NL_SET_ERR_MSG_MOD(extack, "Flag is not supported"); |
| err = -EINVAL; |
| } |
| break; |
| case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: |
| break; |
| case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
| err = mlx5_esw_bridge_ageing_time_set(vport_num, esw_owner_vhca_id, |
| attr->u.ageing_time, br_offloads); |
| break; |
| case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
| err = mlx5_esw_bridge_vlan_filtering_set(vport_num, esw_owner_vhca_id, |
| attr->u.vlan_filtering, br_offloads); |
| break; |
| case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL: |
| err = mlx5_esw_bridge_vlan_proto_set(vport_num, |
| esw_owner_vhca_id, |
| attr->u.vlan_protocol, |
| br_offloads); |
| break; |
| case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED: |
| err = mlx5_esw_bridge_mcast_set(vport_num, esw_owner_vhca_id, |
| !attr->u.mc_disabled, br_offloads); |
| break; |
| default: |
| err = -EOPNOTSUPP; |
| } |
| |
| return err; |
| } |
| |
| static int mlx5_esw_bridge_event_blocking(struct notifier_block *nb, |
| unsigned long event, void *ptr) |
| { |
| struct mlx5_esw_bridge_offloads *br_offloads = container_of(nb, |
| struct mlx5_esw_bridge_offloads, |
| nb_blk); |
| struct net_device *dev = switchdev_notifier_info_to_dev(ptr); |
| int err; |
| |
| switch (event) { |
| case SWITCHDEV_PORT_OBJ_ADD: |
| err = mlx5_esw_bridge_port_obj_add(dev, ptr, br_offloads); |
| break; |
| case SWITCHDEV_PORT_OBJ_DEL: |
| err = mlx5_esw_bridge_port_obj_del(dev, ptr, br_offloads); |
| break; |
| case SWITCHDEV_PORT_ATTR_SET: |
| err = mlx5_esw_bridge_port_obj_attr_set(dev, ptr, br_offloads); |
| break; |
| default: |
| err = 0; |
| } |
| |
| return notifier_from_errno(err); |
| } |
| |
| static void |
| mlx5_esw_bridge_cleanup_switchdev_fdb_work(struct mlx5_bridge_switchdev_fdb_work *fdb_work) |
| { |
| dev_put(fdb_work->dev); |
| kfree(fdb_work->fdb_info.addr); |
| kfree(fdb_work); |
| } |
| |
| static void mlx5_esw_bridge_switchdev_fdb_event_work(struct work_struct *work) |
| { |
| struct mlx5_bridge_switchdev_fdb_work *fdb_work = |
| container_of(work, struct mlx5_bridge_switchdev_fdb_work, work); |
| struct switchdev_notifier_fdb_info *fdb_info = |
| &fdb_work->fdb_info; |
| struct mlx5_esw_bridge_offloads *br_offloads = |
| fdb_work->br_offloads; |
| struct net_device *dev = fdb_work->dev; |
| u16 vport_num, esw_owner_vhca_id; |
| |
| rtnl_lock(); |
| |
| if (!mlx5_esw_bridge_rep_vport_num_vhca_id_get(dev, br_offloads->esw, &vport_num, |
| &esw_owner_vhca_id)) |
| goto out; |
| |
| if (fdb_work->add) |
| mlx5_esw_bridge_fdb_create(dev, vport_num, esw_owner_vhca_id, br_offloads, |
| fdb_info); |
| else |
| mlx5_esw_bridge_fdb_remove(dev, vport_num, esw_owner_vhca_id, br_offloads, |
| fdb_info); |
| |
| out: |
| rtnl_unlock(); |
| mlx5_esw_bridge_cleanup_switchdev_fdb_work(fdb_work); |
| } |
| |
| static struct mlx5_bridge_switchdev_fdb_work * |
| mlx5_esw_bridge_init_switchdev_fdb_work(struct net_device *dev, bool add, |
| struct switchdev_notifier_fdb_info *fdb_info, |
| struct mlx5_esw_bridge_offloads *br_offloads) |
| { |
| struct mlx5_bridge_switchdev_fdb_work *work; |
| u8 *addr; |
| |
| work = kzalloc(sizeof(*work), GFP_ATOMIC); |
| if (!work) |
| return ERR_PTR(-ENOMEM); |
| |
| INIT_WORK(&work->work, mlx5_esw_bridge_switchdev_fdb_event_work); |
| memcpy(&work->fdb_info, fdb_info, sizeof(work->fdb_info)); |
| |
| addr = kzalloc(ETH_ALEN, GFP_ATOMIC); |
| if (!addr) { |
| kfree(work); |
| return ERR_PTR(-ENOMEM); |
| } |
| ether_addr_copy(addr, fdb_info->addr); |
| work->fdb_info.addr = addr; |
| |
| dev_hold(dev); |
| work->dev = dev; |
| work->br_offloads = br_offloads; |
| work->add = add; |
| return work; |
| } |
| |
| static int mlx5_esw_bridge_switchdev_event(struct notifier_block *nb, |
| unsigned long event, void *ptr) |
| { |
| struct mlx5_esw_bridge_offloads *br_offloads = container_of(nb, |
| struct mlx5_esw_bridge_offloads, |
| nb); |
| struct net_device *dev = switchdev_notifier_info_to_dev(ptr); |
| struct switchdev_notifier_fdb_info *fdb_info; |
| struct mlx5_bridge_switchdev_fdb_work *work; |
| struct mlx5_eswitch *esw = br_offloads->esw; |
| struct switchdev_notifier_info *info = ptr; |
| u16 vport_num, esw_owner_vhca_id; |
| struct net_device *upper, *rep; |
| |
| if (event == SWITCHDEV_PORT_ATTR_SET) { |
| int err = mlx5_esw_bridge_port_obj_attr_set(dev, ptr, br_offloads); |
| |
| return notifier_from_errno(err); |
| } |
| |
| upper = netdev_master_upper_dev_get_rcu(dev); |
| if (!upper) |
| return NOTIFY_DONE; |
| if (!netif_is_bridge_master(upper)) |
| return NOTIFY_DONE; |
| |
| rep = mlx5_esw_bridge_rep_vport_num_vhca_id_get(dev, esw, &vport_num, &esw_owner_vhca_id); |
| if (!rep) |
| return NOTIFY_DONE; |
| |
| switch (event) { |
| case SWITCHDEV_FDB_ADD_TO_BRIDGE: |
| fdb_info = container_of(info, |
| struct switchdev_notifier_fdb_info, |
| info); |
| mlx5_esw_bridge_fdb_update_used(dev, vport_num, esw_owner_vhca_id, br_offloads, |
| fdb_info); |
| break; |
| case SWITCHDEV_FDB_DEL_TO_BRIDGE: |
| /* only handle the event on peers */ |
| if (mlx5_esw_bridge_is_local(dev, rep, esw)) |
| break; |
| |
| fdb_info = container_of(info, |
| struct switchdev_notifier_fdb_info, |
| info); |
| /* Mark for deletion to prevent the update wq task from |
| * spuriously refreshing the entry which would mark it again as |
| * offloaded in SW bridge. After this fallthrough to regular |
| * async delete code. |
| */ |
| mlx5_esw_bridge_fdb_mark_deleted(dev, vport_num, esw_owner_vhca_id, br_offloads, |
| fdb_info); |
| fallthrough; |
| case SWITCHDEV_FDB_ADD_TO_DEVICE: |
| case SWITCHDEV_FDB_DEL_TO_DEVICE: |
| fdb_info = container_of(info, |
| struct switchdev_notifier_fdb_info, |
| info); |
| |
| work = mlx5_esw_bridge_init_switchdev_fdb_work(dev, |
| event == SWITCHDEV_FDB_ADD_TO_DEVICE, |
| fdb_info, |
| br_offloads); |
| if (IS_ERR(work)) { |
| WARN_ONCE(1, "Failed to init switchdev work, err=%ld", |
| PTR_ERR(work)); |
| return notifier_from_errno(PTR_ERR(work)); |
| } |
| |
| queue_work(br_offloads->wq, &work->work); |
| break; |
| default: |
| break; |
| } |
| return NOTIFY_DONE; |
| } |
| |
| static void mlx5_esw_bridge_update_work(struct work_struct *work) |
| { |
| struct mlx5_esw_bridge_offloads *br_offloads = container_of(work, |
| struct mlx5_esw_bridge_offloads, |
| update_work.work); |
| |
| rtnl_lock(); |
| mlx5_esw_bridge_update(br_offloads); |
| rtnl_unlock(); |
| |
| queue_delayed_work(br_offloads->wq, &br_offloads->update_work, |
| msecs_to_jiffies(MLX5_ESW_BRIDGE_UPDATE_INTERVAL)); |
| } |
| |
| void mlx5e_rep_bridge_init(struct mlx5e_priv *priv) |
| { |
| struct mlx5_esw_bridge_offloads *br_offloads; |
| struct mlx5_core_dev *mdev = priv->mdev; |
| struct mlx5_eswitch *esw = |
| mdev->priv.eswitch; |
| int err; |
| |
| rtnl_lock(); |
| br_offloads = mlx5_esw_bridge_init(esw); |
| rtnl_unlock(); |
| if (IS_ERR(br_offloads)) { |
| esw_warn(mdev, "Failed to init esw bridge (err=%ld)\n", PTR_ERR(br_offloads)); |
| return; |
| } |
| |
| br_offloads->wq = alloc_ordered_workqueue("mlx5_bridge_wq", 0); |
| if (!br_offloads->wq) { |
| esw_warn(mdev, "Failed to allocate bridge offloads workqueue\n"); |
| goto err_alloc_wq; |
| } |
| |
| br_offloads->nb.notifier_call = mlx5_esw_bridge_switchdev_event; |
| err = register_switchdev_notifier(&br_offloads->nb); |
| if (err) { |
| esw_warn(mdev, "Failed to register switchdev notifier (err=%d)\n", err); |
| goto err_register_swdev; |
| } |
| |
| br_offloads->nb_blk.notifier_call = mlx5_esw_bridge_event_blocking; |
| err = register_switchdev_blocking_notifier(&br_offloads->nb_blk); |
| if (err) { |
| esw_warn(mdev, "Failed to register blocking switchdev notifier (err=%d)\n", err); |
| goto err_register_swdev_blk; |
| } |
| |
| br_offloads->netdev_nb.notifier_call = mlx5_esw_bridge_switchdev_port_event; |
| err = register_netdevice_notifier_net(&init_net, &br_offloads->netdev_nb); |
| if (err) { |
| esw_warn(mdev, "Failed to register bridge offloads netdevice notifier (err=%d)\n", |
| err); |
| goto err_register_netdev; |
| } |
| INIT_DELAYED_WORK(&br_offloads->update_work, mlx5_esw_bridge_update_work); |
| queue_delayed_work(br_offloads->wq, &br_offloads->update_work, |
| msecs_to_jiffies(MLX5_ESW_BRIDGE_UPDATE_INTERVAL)); |
| return; |
| |
| err_register_netdev: |
| unregister_switchdev_blocking_notifier(&br_offloads->nb_blk); |
| err_register_swdev_blk: |
| unregister_switchdev_notifier(&br_offloads->nb); |
| err_register_swdev: |
| destroy_workqueue(br_offloads->wq); |
| err_alloc_wq: |
| rtnl_lock(); |
| mlx5_esw_bridge_cleanup(esw); |
| rtnl_unlock(); |
| } |
| |
| void mlx5e_rep_bridge_cleanup(struct mlx5e_priv *priv) |
| { |
| struct mlx5_esw_bridge_offloads *br_offloads; |
| struct mlx5_core_dev *mdev = priv->mdev; |
| struct mlx5_eswitch *esw = |
| mdev->priv.eswitch; |
| |
| br_offloads = esw->br_offloads; |
| if (!br_offloads) |
| return; |
| |
| cancel_delayed_work_sync(&br_offloads->update_work); |
| unregister_netdevice_notifier_net(&init_net, &br_offloads->netdev_nb); |
| unregister_switchdev_blocking_notifier(&br_offloads->nb_blk); |
| unregister_switchdev_notifier(&br_offloads->nb); |
| destroy_workqueue(br_offloads->wq); |
| rtnl_lock(); |
| mlx5_esw_bridge_cleanup(esw); |
| rtnl_unlock(); |
| } |