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mlxsw: spectrum: Handle VLAN devices linking / unlinking 

When a VLAN interface is configured on top of a physical port we should
associate the VLAN device with the matching vPort. Likewise, when it's
removed, we should revert back to the underlying port netdev.

While not a must, this is consistent with port netdevs and also provides
a more accurate error printing via netdev_err() and friends.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2015-12-15 16:03:43 +01:00 committed by David S. Miller
parent aac78a4408
commit 9589a7b5d7
1 changed files with 51 additions and 3 deletions
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54
drivers/net/ethernet/mellanox/mlxsw/spectrum.c
View File

@ -2259,6 +2259,40 @@ static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port *mlxsw_sp_port,
return mlxsw_sp_port_lag_tx_en_set(mlxsw_sp_port, info->tx_enabled);
}
static int mlxsw_sp_port_vlan_link(struct mlxsw_sp_port *mlxsw_sp_port,
struct net_device *vlan_dev)
{
struct mlxsw_sp_port *mlxsw_sp_vport;
u16 vid = vlan_dev_vlan_id(vlan_dev);
mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
if (!mlxsw_sp_vport) {
WARN_ON(!mlxsw_sp_vport);
return -EINVAL;
}
mlxsw_sp_vport->dev = vlan_dev;
return 0;
}
static int mlxsw_sp_port_vlan_unlink(struct mlxsw_sp_port *mlxsw_sp_port,
struct net_device *vlan_dev)
{
struct mlxsw_sp_port *mlxsw_sp_vport;
u16 vid = vlan_dev_vlan_id(vlan_dev);
mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
if (!mlxsw_sp_vport) {
WARN_ON(!mlxsw_sp_vport);
return -EINVAL;
}
mlxsw_sp_vport->dev = mlxsw_sp_port->dev;
return 0;
}
static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev,
unsigned long event, void *ptr)
{
@ -2288,9 +2322,23 @@ static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev,
break;
case NETDEV_CHANGEUPPER:
upper_dev = info->upper_dev;
if (!info->master)
break;
if (netif_is_bridge_master(upper_dev)) {
if (is_vlan_dev(upper_dev)) {
if (info->linking) {
err = mlxsw_sp_port_vlan_link(mlxsw_sp_port,
upper_dev);
if (err) {
netdev_err(dev, "Failed to link VLAN device\n");
return NOTIFY_BAD;
}
} else {
err = mlxsw_sp_port_vlan_unlink(mlxsw_sp_port,
upper_dev);
if (err) {
netdev_err(dev, "Failed to unlink VLAN device\n");
return NOTIFY_BAD;
}
}
} else if (netif_is_bridge_master(upper_dev)) {
if (info->linking) {
err = mlxsw_sp_port_bridge_join(mlxsw_sp_port);
if (err)