From: Vladimir Oltean vladimir.oltean@nxp.com
[ Upstream commit 4cf35a2b627a020fe1a6b6fc7a6a12394644e474 ]
When the user runs: bridge link set dev $br_port mcast_flood on
this command should affect not only L2 multicast, but also IPv4 and IPv6 multicast.
In the Ocelot switch, unknown multicast gets flooded according to different PGIDs according to its type, and PGID_MC only handles L2 multicast. Therefore, by leaving PGID_MCIPV4 and PGID_MCIPV6 at their default value of 0, unknown IP multicast traffic is never flooded.
Fixes: 421741ea5672 ("net: mscc: ocelot: offload bridge port flags to device") Signed-off-by: Vladimir Oltean vladimir.oltean@nxp.com Link: https://lore.kernel.org/r/20220415151950.219660-1-vladimir.oltean@nxp.com Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/mscc/ocelot.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c index 6aad0953e8fe..a59300d9e000 100644 --- a/drivers/net/ethernet/mscc/ocelot.c +++ b/drivers/net/ethernet/mscc/ocelot.c @@ -1932,6 +1932,8 @@ static void ocelot_port_set_mcast_flood(struct ocelot *ocelot, int port, val = BIT(port);
ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_MC); + ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_MCIPV4); + ocelot_rmw_rix(ocelot, val, BIT(port), ANA_PGID_PGID, PGID_MCIPV6); }
static void ocelot_port_set_bcast_flood(struct ocelot *ocelot, int port,