From: Vivien Didelot Date: Thu, 14 Apr 2016 18:42:08 +0000 (-0400) Subject: net: dsa: mv88e6xxx: enable SA learning on DSA ports X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=996ecb8246676100af2a4dc1cfed747712a3c85f;p=linux-beck.git net: dsa: mv88e6xxx: enable SA learning on DSA ports In multi-chip systems, DSA Tag ports must learn SA addresses in order to correctly switch frames between interconnected chips. This fixes cross-chip hardware bridging in a VLAN filtering aware system, because a bridge group gets implemented as an hardware 802.1Q VLAN and thus DSA and user ports share the same FDB. Fixes: 4c7ea3c0791e ("net: dsa: mv88e6xxx: disable SA learning for DSA and CPU ports") Signed-off-by: Vivien Didelot Signed-off-by: David S. Miller --- diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c index 028ebe2a6053..169c9483566f 100644 --- a/drivers/net/dsa/mv88e6xxx.c +++ b/drivers/net/dsa/mv88e6xxx.c @@ -2476,8 +2476,8 @@ static int mv88e6xxx_setup_port(struct dsa_switch *ds, int port) * the other bits clear. */ reg = 1 << port; - /* Disable learning for DSA and CPU ports */ - if (dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)) + /* Disable learning for CPU port */ + if (dsa_is_cpu_port(ds, port)) reg = 0; ret = _mv88e6xxx_reg_write(ds, REG_PORT(port), PORT_ASSOC_VECTOR, reg);