dsa: mv88e6xxx: Enable forwarding for unknown to the CPU port

Frames destined to an unknown address must be forwarded to the CPU
port. Otherwise incoming ARP, dhcp leases, etc, do not work.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index f8baa897d1a0e48b39f2d628ce36bfc2ef73ca08..1f7dd927cc5ea4777530a8ba23daae631f258bf9 100644 (file)
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -2051,6 +2051,8 @@ static int mv88e6xxx_setup_port(struct dsa_switch *ds, int port)
                                reg |= PORT_CONTROL_FRAME_ETHER_TYPE_DSA;
                        else
                                reg |= PORT_CONTROL_FRAME_MODE_DSA;
+                       reg |= PORT_CONTROL_FORWARD_UNKNOWN |
+                               PORT_CONTROL_FORWARD_UNKNOWN_MC;
                }
 
                if (mv88e6xxx_6352_family(ds) || mv88e6xxx_6351_family(ds) ||