[patch net-next 03/23] mlxsw: spectrum: Forbid LAG slave from having VLAN uppers
From: Jiri Pirko <jiri@resnulli.us>
Date: 2016-06-20 21:16:19
Subsystem:
mellanox ethernet switch drivers, networking drivers, the rest · Maintainers:
Ido Schimmel, Petr Machata, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Ido Schimmel <redacted> When a port netdev is put under LAG it cannot have VLAN upper devices, so forbid that. The LAG device itself can have VLAN upper devices. Signed-off-by: Ido Schimmel <redacted> Signed-off-by: Jiri Pirko <redacted> --- drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index b47e3fb..46c867f 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c@@ -3038,7 +3038,7 @@ static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev, !netif_is_lag_master(upper_dev) && !netif_is_bridge_master(upper_dev)) return -EINVAL; - if (!info->master || !info->linking) + if (!info->linking) break; /* HW limitation forbids to put ports to multiple bridges. */ if (netif_is_bridge_master(upper_dev) &&
@@ -3048,6 +3048,11 @@ static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev, !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev, info->upper_info)) return -EINVAL; + if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev)) + return -EINVAL; + if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) && + !netif_is_lag_master(vlan_dev_real_dev(upper_dev))) + return -EINVAL; break; case NETDEV_CHANGEUPPER: upper_dev = info->upper_dev;
--
2.5.5