summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
diff options
context:
space:
mode:
authorIdo Schimmel <idosch@mellanox.com>2018-08-24 15:41:35 +0300
committerDavid S. Miller <davem@davemloft.net>2018-08-26 02:28:20 +0300
commit602b74eda81311dbdb5dbab08c30f789f648ebdc (patch)
tree1816e9657a29bf4540bb5f522bd4442bfe93e836 /drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
parentae923785bc3af418b913bda7f92d247255a7b541 (diff)
downloadlinux-602b74eda81311dbdb5dbab08c30f789f648ebdc.tar.xz
mlxsw: spectrum_switchdev: Do not leak RIFs when removing bridge
When a bridge device is removed, the VLANs are flushed from each configured port. This causes the ports to decrement the reference count on the associated FIDs (filtering identifier). If the reference count of a FID is 1 and it has a RIF (router interface), then this RIF is destroyed. However, if no port is member in the VLAN for which a RIF exists, then the RIF will continue to exist after the removal of the bridge. To reproduce: # ip link add name br0 type bridge vlan_filtering 1 # ip link set dev swp1 master br0 # ip link add link br0 name br0.10 type vlan id 10 # ip address add 192.0.2.0/24 dev br0.10 # ip link del dev br0 The RIF associated with br0.10 continues to exist. Fix this by iterating over all the bridge device uppers when it is destroyed and take care of destroying their RIFs. Fixes: 99f44bb3527b ("mlxsw: spectrum: Enable L3 interfaces on top of bridge devices") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
index 0d8444aaba01..db715da7bab7 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
@@ -127,6 +127,24 @@ bool mlxsw_sp_bridge_device_is_offloaded(const struct mlxsw_sp *mlxsw_sp,
return !!mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev);
}
+static int mlxsw_sp_bridge_device_upper_rif_destroy(struct net_device *dev,
+ void *data)
+{
+ struct mlxsw_sp *mlxsw_sp = data;
+
+ mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, dev);
+ return 0;
+}
+
+static void mlxsw_sp_bridge_device_rifs_destroy(struct mlxsw_sp *mlxsw_sp,
+ struct net_device *dev)
+{
+ mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, dev);
+ netdev_walk_all_upper_dev_rcu(dev,
+ mlxsw_sp_bridge_device_upper_rif_destroy,
+ mlxsw_sp);
+}
+
static struct mlxsw_sp_bridge_device *
mlxsw_sp_bridge_device_create(struct mlxsw_sp_bridge *bridge,
struct net_device *br_dev)
@@ -165,6 +183,8 @@ static void
mlxsw_sp_bridge_device_destroy(struct mlxsw_sp_bridge *bridge,
struct mlxsw_sp_bridge_device *bridge_device)
{
+ mlxsw_sp_bridge_device_rifs_destroy(bridge->mlxsw_sp,
+ bridge_device->dev);
list_del(&bridge_device->list);
if (bridge_device->vlan_enabled)
bridge->vlan_enabled_exists = false;