switchdev: Add support for flood control

Allow devices supporting this feature to control the flooding of unknown
unicast traffic, by making switchdev infrastructure propagate this setting
to the switch driver.

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>

1 files changed, 4 insertions, 1 deletions

diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 1eb76956b439..8950d39af341 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -746,7 +746,7 @@ int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
                 .id = SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS,
         };
         u16 mode = BRIDGE_MODE_UNDEF;
-        u32 mask = BR_LEARNING | BR_LEARNING_SYNC;
+        u32 mask = BR_LEARNING | BR_LEARNING_SYNC | BR_FLOOD;
         int err;
 
         err = switchdev_port_attr_get(dev, &attr);
@@ -817,6 +817,9 @@ static int switchdev_port_br_setlink_protinfo(struct net_device *dev,
                         err = switchdev_port_br_setflag(dev, attr,
                                                         BR_LEARNING_SYNC);
                         break;
+                case IFLA_BRPORT_UNICAST_FLOOD:
+                        err = switchdev_port_br_setflag(dev, attr, BR_FLOOD);
+                        break;
                 default:
                         err = -EOPNOTSUPP;
                         break;