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net: dsa: mv88e6xxx: unlock DSA and CPU ports

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commit 65fa40276ac1318e75264e5a204547b57c2cf397 upstream.

Locking a port generates an hardware interrupt when a new SA address is
received. This enables CPU directed learning, which is needed for 802.1X
MAC authentication.

To disable automatic learning on a port, the only configuration needed
is to set its Port Association Vector to all zero.

Clear PAV when SA learning should be disabled instead of locking a port.

Fixes: 4c7ea3c0791e ("net: dsa: mv88e6xxx: disable SA learning for DSA and CPU ports")
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vivien Didelot 2016-04-14 14:42:07 -04:00 committed by Greg Kroah-Hartman
parent a039c41fb7
commit d6a2dd37e5
1 changed files with 1 additions and 1 deletions
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2
drivers/net/dsa/mv88e6xxx.c
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@ -2066,7 +2066,7 @@ static int mv88e6xxx_setup_port(struct dsa_switch *ds, int port)
reg = 1 << port;
/* Disable learning for DSA and CPU ports */
if (dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port))
reg = PORT_ASSOC_VECTOR_LOCKED_PORT;
reg = 0;
ret = _mv88e6xxx_reg_write(ds, REG_PORT(port), PORT_ASSOC_VECTOR, reg);
if (ret)