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authorPetr Machata <petrm@nvidia.com>2023-07-19 13:01:31 +0200
committerDavid S. Miller <davem@davemloft.net>2023-07-21 08:54:06 +0100
commit4560cf408ecae4824a2bbdcef83cf91b2db5d268 (patch)
tree9ec84daf7b7f12ae69c58c4ee3670173a3b6c2cd /drivers/net/ethernet/mellanox/mlxsw/spectrum.c
parent31618b22f2c4c0a4491554a2d879141efdffe88f (diff)
mlxsw: spectrum_router: Replay IP NETDEV_UP on device deslavement
When a netdevice is removed from a bridge or a LAG, and it has an IP address, it should join the router and gain a RIF. Do that by replaying address addition event on the netdevice. When handling deslavement of LAG or its upper from a bridge device, the replay should be done after all the lowers of the LAG have left the bridge. Thus these scenarios are handled by passing replay_deslavement of false, and by invoking, after the lowers have been processed, a new helper, mlxsw_sp_netdevice_post_lag_event(), which does the per-LAG / -upper handling, and in particular invokes the replay. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/spectrum.c48
1 files changed, 42 insertions, 6 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 0dcd988ffce1..b955511fe5a2 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -4838,15 +4838,20 @@ static int mlxsw_sp_netdevice_port_upper_event(struct net_device *lower_dev,
case NETDEV_CHANGEUPPER:
upper_dev = info->upper_dev;
if (netif_is_bridge_master(upper_dev)) {
- if (info->linking)
+ if (info->linking) {
err = mlxsw_sp_port_bridge_join(mlxsw_sp_port,
lower_dev,
upper_dev,
extack);
- else
+ } else {
mlxsw_sp_port_bridge_leave(mlxsw_sp_port,
lower_dev,
upper_dev);
+ if (!replay_deslavement)
+ break;
+ mlxsw_sp_netdevice_deslavement_replay(mlxsw_sp,
+ lower_dev);
+ }
} else if (netif_is_lag_master(upper_dev)) {
if (info->linking) {
err = mlxsw_sp_port_lag_join(mlxsw_sp_port,
@@ -4855,6 +4860,8 @@ static int mlxsw_sp_netdevice_port_upper_event(struct net_device *lower_dev,
mlxsw_sp_port_lag_col_dist_disable(mlxsw_sp_port);
mlxsw_sp_port_lag_leave(mlxsw_sp_port,
upper_dev);
+ mlxsw_sp_netdevice_deslavement_replay(mlxsw_sp,
+ dev);
}
} else if (netif_is_ovs_master(upper_dev)) {
if (info->linking)
@@ -4924,6 +4931,30 @@ static int mlxsw_sp_netdevice_port_event(struct net_device *lower_dev,
return 0;
}
+/* Called for LAG or its upper VLAN after the per-LAG-lower processing was done,
+ * to do any per-LAG / per-LAG-upper processing.
+ */
+static int mlxsw_sp_netdevice_post_lag_event(struct net_device *dev,
+ unsigned long event,
+ void *ptr)
+{
+ struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(dev);
+ struct netdev_notifier_changeupper_info *info = ptr;
+
+ if (!mlxsw_sp)
+ return 0;
+
+ switch (event) {
+ case NETDEV_CHANGEUPPER:
+ if (info->linking)
+ break;
+ if (netif_is_bridge_master(info->upper_dev))
+ mlxsw_sp_netdevice_deslavement_replay(mlxsw_sp, dev);
+ break;
+ }
+ return 0;
+}
+
static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev,
unsigned long event, void *ptr)
{
@@ -4940,7 +4971,7 @@ static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev,
}
}
- return 0;
+ return mlxsw_sp_netdevice_post_lag_event(lag_dev, event, ptr);
}
static int mlxsw_sp_netdevice_port_vlan_event(struct net_device *vlan_dev,
@@ -4984,15 +5015,20 @@ static int mlxsw_sp_netdevice_port_vlan_event(struct net_device *vlan_dev,
case NETDEV_CHANGEUPPER:
upper_dev = info->upper_dev;
if (netif_is_bridge_master(upper_dev)) {
- if (info->linking)
+ if (info->linking) {
err = mlxsw_sp_port_bridge_join(mlxsw_sp_port,
vlan_dev,
upper_dev,
extack);
- else
+ } else {
mlxsw_sp_port_bridge_leave(mlxsw_sp_port,
vlan_dev,
upper_dev);
+ if (!replay_deslavement)
+ break;
+ mlxsw_sp_netdevice_deslavement_replay(mlxsw_sp,
+ vlan_dev);
+ }
} else if (netif_is_macvlan(upper_dev)) {
if (!info->linking)
mlxsw_sp_rif_macvlan_del(mlxsw_sp, upper_dev);
@@ -5022,7 +5058,7 @@ static int mlxsw_sp_netdevice_lag_port_vlan_event(struct net_device *vlan_dev,
}
}
- return 0;
+ return mlxsw_sp_netdevice_post_lag_event(vlan_dev, event, ptr);
}
static int mlxsw_sp_netdevice_bridge_vlan_event(struct mlxsw_sp *mlxsw_sp,