From 4c7ea3c0791e971f05f78453a587a1640fe09a61 Mon Sep 17 00:00:00 2001 From: Andrew Lunn <andrew@lunn.ch> Date: Tue, 3 Nov 2015 10:52:36 -0500 Subject: [PATCH] net: dsa: mv88e6xxx: disable SA learning for DSA and CPU ports 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> --- drivers/net/dsa/mv88e6xxx.c | 8 ++++++-- drivers/net/dsa/mv88e6xxx.h | 5 +++++ 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c index 85228f44c2b5b..3116990ccab95 100644 --- a/drivers/net/dsa/mv88e6xxx.c +++ b/drivers/net/dsa/mv88e6xxx.c @@ -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; diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h index ad9958f09aa7f..fb9a8739712f3 100644 --- a/drivers/net/dsa/mv88e6xxx.h +++ b/drivers/net/dsa/mv88e6xxx.h @@ -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 -- GitLab