diff options
| author | Nikolay Aleksandrov <nikolay@nvidia.com> | 2021-07-19 20:06:37 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-07-20 15:41:20 +0300 |
| commit | 9dee572c384846f4ece029ab5688faed0682e48a (patch) | |
| tree | e50f99a84791c5e785eb278b1dc2ae928d63b866 /net/bridge/br_multicast.c | |
| parent | 9aba624d7cb23bdfda6c8ef74bdf001e12641697 (diff) | |
| download | linux-9dee572c384846f4ece029ab5688faed0682e48a.tar.xz | |
net: bridge: vlan: add mcast snooping control
Add a new global vlan option which controls whether multicast snooping
is enabled or disabled for a single vlan. It controls the vlan private
flag: BR_VLFLAG_GLOBAL_MCAST_ENABLED.
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_multicast.c')
| -rw-r--r-- | net/bridge/br_multicast.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index fb5e5df571fd..976491951c82 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -3988,6 +3988,22 @@ int br_multicast_toggle_vlan_snooping(struct net_bridge *br, bool on, return 0; } +bool br_multicast_toggle_global_vlan(struct net_bridge_vlan *vlan, bool on) +{ + ASSERT_RTNL(); + + /* BR_VLFLAG_GLOBAL_MCAST_ENABLED relies on eventual consistency and + * requires only RTNL to change + */ + if (on == !!(vlan->priv_flags & BR_VLFLAG_GLOBAL_MCAST_ENABLED)) + return false; + + vlan->priv_flags ^= BR_VLFLAG_GLOBAL_MCAST_ENABLED; + br_multicast_toggle_vlan(vlan, on); + + return true; +} + void br_multicast_stop(struct net_bridge *br) { ASSERT_RTNL(); |