| From 714e8c634821b340c191a157e8c4e0b1afd53dfc Mon Sep 17 00:00:00 2001 |
| From: Alex Marginean <alexandru.marginean@nxp.com> |
| 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 <alexandru.marginean@nxp.com> |
| --- |
| 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 |
| @@ -1677,6 +1677,8 @@ 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 { |
| @@ -1688,6 +1690,12 @@ 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); |