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authorVladimir Oltean <vladimir.oltean@nxp.com>2021-06-29 17:06:58 +0300
committerDavid S. Miller <davem@davemloft.net>2021-06-29 10:46:23 -0700
commit63c51453c82cddc27556233ff41041ea9fc49fe0 (patch)
tree4299fdf57fa2a7d1c6b649089736321a1f1d7cc8 /net/dsa
parent4bed397c3e65638e9118956bda85d2a9bcac3668 (diff)
downloadlinux-63c51453c82cddc27556233ff41041ea9fc49fe0.tar.bz2
net: dsa: replay the local bridge FDB entries pointing to the bridge dev too
When we join a bridge that already has some local addresses pointing to itself, we do not get those notifications. Similarly, when we leave that bridge, we do not get notifications for the deletion of those entries. The only switchdev notifications we get are those of entries added while the DSA port is enslaved to the bridge. This makes use cases such as the following work properly (with the number of additions and removals properly balanced): ip link add br0 type bridge ip link add br1 type bridge ip link set br0 address 00:01:02:03:04:05 ip link set br1 address 00:01:02:03:04:05 ip link set swp0 up ip link set swp1 up ip link set swp0 master br0 ip link set swp1 master br1 ip link set br0 up ip link set br1 up ip link del br1 # 00:01:02:03:04:05 still installed on the CPU port ip link del br0 # 00:01:02:03:04:05 finally removed from the CPU port Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa')
-rw-r--r--net/dsa/port.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/net/dsa/port.c b/net/dsa/port.c
index 778b0dc2bb39..28b45b7e66df 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -199,11 +199,17 @@ static int dsa_port_switchdev_sync(struct dsa_port *dp,
if (err && err != -EOPNOTSUPP)
return err;
+ /* Forwarding and termination FDB entries on the port */
err = br_fdb_replay(br, brport_dev, dp, true,
&dsa_slave_switchdev_notifier);
if (err && err != -EOPNOTSUPP)
return err;
+ /* Termination FDB entries on the bridge itself */
+ err = br_fdb_replay(br, br, dp, true, &dsa_slave_switchdev_notifier);
+ if (err && err != -EOPNOTSUPP)
+ return err;
+
err = br_vlan_replay(br, brport_dev, dp, true,
&dsa_slave_switchdev_blocking_notifier, extack);
if (err && err != -EOPNOTSUPP)
@@ -225,11 +231,17 @@ static int dsa_port_switchdev_unsync_objs(struct dsa_port *dp,
if (err && err != -EOPNOTSUPP)
return err;
+ /* Forwarding and termination FDB entries on the port */
err = br_fdb_replay(br, brport_dev, dp, false,
&dsa_slave_switchdev_notifier);
if (err && err != -EOPNOTSUPP)
return err;
+ /* Termination FDB entries on the bridge itself */
+ err = br_fdb_replay(br, br, dp, false, &dsa_slave_switchdev_notifier);
+ if (err && err != -EOPNOTSUPP)
+ return err;
+
err = br_vlan_replay(br, brport_dev, dp, false,
&dsa_slave_switchdev_blocking_notifier, extack);
if (err && err != -EOPNOTSUPP)