From 714e8c634821b340c191a157e8c4e0b1afd53dfc Mon Sep 17 00:00:00 2001 From: Alex Marginean Date: Wed, 8 Jan 2020 15:21:53 +0200 Subject: [PATCH] drivers: net: mscc_ocelot: don't flood unicast traffic to cpu Switch cpu port doesn't learn MAC addresses and the local bridge dev_addr must be explicitly added to the bridge. This is done whenever a port is added to a bridge, ports following the 1st one will just overwrite the same entry. Signed-off-by: Alex Marginean --- drivers/net/ethernet/mscc/ocelot.c | 8 ++++++++ 1 file changed, 8 insertions(+) --- a/drivers/net/ethernet/mscc/ocelot.c +++ b/drivers/net/ethernet/mscc/ocelot.c @@ -1680,6 +1680,8 @@ static int ocelot_port_obj_del(struct ne int ocelot_port_bridge_join(struct ocelot *ocelot, int port, struct net_device *bridge) { + struct ocelot_port *ocelot_port = ocelot->ports[port]; + if (!ocelot->bridge_mask) { ocelot->hw_bridge_dev = bridge; } else { @@ -1691,6 +1693,12 @@ int ocelot_port_bridge_join(struct ocelo ocelot->bridge_mask |= BIT(port); + /* Direct CPU traffic to PCU port, this should override any existing + * entries + */ + ocelot_mact_learn(ocelot, PGID_CPU, bridge->dev_addr, ocelot_port->pvid, + ENTRYTYPE_LOCKED); + return 0; } EXPORT_SYMBOL(ocelot_port_bridge_join);