diff options
3 files changed, 128 insertions, 29 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index 63f40d16be3b..109ac2db0d65 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -8411,6 +8411,110 @@ out: mutex_unlock(&mlxsw_sp->router->lock); } +static void mlxsw_sp_rif_destroy_vlan_upper(struct mlxsw_sp *mlxsw_sp, + struct net_device *br_dev, + u16 vid) +{ + struct net_device *upper_dev; + struct mlxsw_sp_crif *crif; + + rcu_read_lock(); + upper_dev = __vlan_find_dev_deep_rcu(br_dev, htons(ETH_P_8021Q), vid); + rcu_read_unlock(); + + if (!upper_dev) + return; + + crif = mlxsw_sp_crif_lookup(mlxsw_sp->router, upper_dev); + if (!crif || !crif->rif) + return; + + mlxsw_sp_rif_destroy(crif->rif); +} + +static int mlxsw_sp_inetaddr_bridge_event(struct mlxsw_sp *mlxsw_sp, + struct net_device *l3_dev, + int lower_pvid, + unsigned long event, + struct netlink_ext_ack *extack); + +int mlxsw_sp_router_bridge_vlan_add(struct mlxsw_sp *mlxsw_sp, + struct net_device *br_dev, + u16 new_vid, bool is_pvid, + struct netlink_ext_ack *extack) +{ + struct mlxsw_sp_rif *old_rif; + struct mlxsw_sp_rif *new_rif; + struct net_device *upper_dev; + u16 old_pvid = 0; + u16 new_pvid; + int err = 0; + + mutex_lock(&mlxsw_sp->router->lock); + old_rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, br_dev); + if (old_rif) { + /* If the RIF on the bridge is not a VLAN RIF, we shouldn't have + * gotten a PVID notification. + */ + if (WARN_ON(old_rif->ops->type != MLXSW_SP_RIF_TYPE_VLAN)) + old_rif = NULL; + else + old_pvid = mlxsw_sp_fid_8021q_vid(old_rif->fid); + } + + if (is_pvid) + new_pvid = new_vid; + else if (old_pvid == new_vid) + new_pvid = 0; + else + goto out; + + if (old_pvid == new_pvid) + goto out; + + if (new_pvid) { + struct mlxsw_sp_rif_params params = { + .dev = br_dev, + .vid = new_pvid, + }; + + /* If there is a VLAN upper with the same VID as the new PVID, + * kill its RIF, if there is one. + */ + mlxsw_sp_rif_destroy_vlan_upper(mlxsw_sp, br_dev, new_pvid); + + if (mlxsw_sp_dev_addr_list_empty(br_dev)) + goto out; + new_rif = mlxsw_sp_rif_create(mlxsw_sp, ¶ms, extack); + if (IS_ERR(new_rif)) { + err = PTR_ERR(new_rif); + goto out; + } + + if (old_pvid) + mlxsw_sp_rif_migrate_destroy(mlxsw_sp, old_rif, new_rif, + true); + } else { + mlxsw_sp_rif_destroy(old_rif); + } + + if (old_pvid) { + rcu_read_lock(); + upper_dev = __vlan_find_dev_deep_rcu(br_dev, htons(ETH_P_8021Q), + old_pvid); + rcu_read_unlock(); + if (upper_dev) + err = mlxsw_sp_inetaddr_bridge_event(mlxsw_sp, + upper_dev, + new_pvid, + NETDEV_UP, extack); + } + +out: + mutex_unlock(&mlxsw_sp->router->lock); + return err; +} + static void mlxsw_sp_rif_subport_params_init(struct mlxsw_sp_rif_params *params, struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan) @@ -8847,13 +8951,20 @@ static int mlxsw_sp_inetaddr_bridge_event(struct mlxsw_sp *mlxsw_sp, return -EOPNOTSUPP; } err = br_vlan_get_pvid(l3_dev, ¶ms.vid); - if (err < 0 || !params.vid) { - NL_SET_ERR_MSG_MOD(extack, "Couldn't determine bridge PVID"); - return -EINVAL; - } + if (err) + return err; + if (!params.vid) + return 0; } else if (is_vlan_dev(l3_dev)) { params.vid = vlan_dev_vlan_id(l3_dev); + + /* If the VID matches PVID of the bridge below, the + * bridge owns the RIF for this VLAN. Don't do anything. + */ + if ((int)params.vid == lower_pvid) + return 0; } + rif = mlxsw_sp_rif_create(mlxsw_sp, ¶ms, extack); if (IS_ERR(rif)) return PTR_ERR(rif); diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h index 9a2669a08480..74242220a0cf 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h @@ -171,6 +171,10 @@ int mlxsw_sp_ipip_ecn_encap_init(struct mlxsw_sp *mlxsw_sp); int mlxsw_sp_ipip_ecn_decap_init(struct mlxsw_sp *mlxsw_sp); struct net_device * mlxsw_sp_ipip_netdev_ul_dev_get(const struct net_device *ol_dev); +int mlxsw_sp_router_bridge_vlan_add(struct mlxsw_sp *mlxsw_sp, + struct net_device *dev, + u16 new_vid, bool is_pvid, + struct netlink_ext_ack *extack); int mlxsw_sp_router_port_join_lag(struct mlxsw_sp_port *mlxsw_sp_port, struct net_device *lag_dev, struct netlink_ext_ack *extack); diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c index a3365f7437d6..79d45c6c6edf 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c @@ -1479,30 +1479,15 @@ err_port_vlan_set: } static int -mlxsw_sp_br_ban_rif_pvid_change(struct mlxsw_sp *mlxsw_sp, - const struct net_device *br_dev, - const struct switchdev_obj_port_vlan *vlan, - struct netlink_ext_ack *extack) +mlxsw_sp_br_rif_pvid_change(struct mlxsw_sp *mlxsw_sp, + struct net_device *br_dev, + const struct switchdev_obj_port_vlan *vlan, + struct netlink_ext_ack *extack) { - u16 pvid; - - pvid = mlxsw_sp_rif_vid(mlxsw_sp, br_dev); - if (!pvid) - return 0; - - if (vlan->flags & BRIDGE_VLAN_INFO_PVID) { - if (vlan->vid != pvid) { - NL_SET_ERR_MSG_MOD(extack, "Can't change PVID, it's used by router interface"); - return -EBUSY; - } - } else { - if (vlan->vid == pvid) { - NL_SET_ERR_MSG_MOD(extack, "Can't remove PVID, it's used by router interface"); - return -EBUSY; - } - } + bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; - return 0; + return mlxsw_sp_router_bridge_vlan_add(mlxsw_sp, br_dev, vlan->vid, + flag_pvid, extack); } static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port, @@ -1519,9 +1504,8 @@ static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port, int err = 0; if (br_vlan_enabled(orig_dev)) - err = mlxsw_sp_br_ban_rif_pvid_change(mlxsw_sp, - orig_dev, vlan, - extack); + err = mlxsw_sp_br_rif_pvid_change(mlxsw_sp, orig_dev, + vlan, extack); if (!err) err = -EOPNOTSUPP; return err; |