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net: dsa: mv88e6xxx: disable SA learning for DSA and CPU ports

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Frames with DSA headers passing to/from the CPU were taking place in the
MAC learning on these ports, resulting in incorrect ATU entries. Disable
learning on these ports.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2015-11-03 10:52:36 -05:00 committed by David S. Miller
parent 5ba3f7d61a
commit 4c7ea3c079
2 changed files with 11 additions and 2 deletions
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8
drivers/net/dsa/mv88e6xxx.c
View file

@ -2029,8 +2029,12 @@ static int mv88e6xxx_setup_port(struct dsa_switch *ds, int port)
* a port bitmap that has only the bit for this port set and
* the other bits clear.
*/
ret = _mv88e6xxx_reg_write(ds, REG_PORT(port), PORT_ASSOC_VECTOR,
1 << 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;
ret = _mv88e6xxx_reg_write(ds, REG_PORT(port), PORT_ASSOC_VECTOR, reg);
if (ret)
goto abort;

5
drivers/net/dsa/mv88e6xxx.h
View file

@ -159,6 +159,11 @@
#define PORT_RATE_CONTROL 0x09
#define PORT_RATE_CONTROL_2 0x0a
#define PORT_ASSOC_VECTOR 0x0b
#define PORT_ASSOC_VECTOR_HOLD_AT_1 BIT(15)
#define PORT_ASSOC_VECTOR_INT_AGE_OUT BIT(14)
#define PORT_ASSOC_VECTOR_LOCKED_PORT BIT(13)
#define PORT_ASSOC_VECTOR_IGNORE_WRONG BIT(12)
#define PORT_ASSOC_VECTOR_REFRESH_LOCKED BIT(11)
#define PORT_ATU_CONTROL 0x0c
#define PORT_PRI_OVERRIDE 0x0d
#define PORT_ETH_TYPE 0x0f