From 57e661aae6a823140787dbcc34d92e223e2f71c5 Mon Sep 17 00:00:00 2001 From: Tobias Waldekranz Date: Wed, 13 Jan 2021 09:42:54 +0100 Subject: net: dsa: mv88e6xxx: Link aggregation support Support offloading of LAGs to hardware. LAGs may be attached to a bridge in which case VLANs, multicast groups, etc. are also offloaded as usual. Signed-off-by: Tobias Waldekranz Reviewed-by: Vladimir Oltean Signed-off-by: Jakub Kicinski --- drivers/net/dsa/mv88e6xxx/port.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'drivers/net/dsa/mv88e6xxx/port.c') diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c index 77a5fd1798cd..4b46e10a2dde 100644 --- a/drivers/net/dsa/mv88e6xxx/port.c +++ b/drivers/net/dsa/mv88e6xxx/port.c @@ -851,6 +851,27 @@ int mv88e6xxx_port_set_message_port(struct mv88e6xxx_chip *chip, int port, return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL1, val); } +int mv88e6xxx_port_set_trunk(struct mv88e6xxx_chip *chip, int port, + bool trunk, u8 id) +{ + u16 val; + int err; + + err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_CTL1, &val); + if (err) + return err; + + val &= ~MV88E6XXX_PORT_CTL1_TRUNK_ID_MASK; + + if (trunk) + val |= MV88E6XXX_PORT_CTL1_TRUNK_PORT | + (id << MV88E6XXX_PORT_CTL1_TRUNK_ID_SHIFT); + else + val &= ~MV88E6XXX_PORT_CTL1_TRUNK_PORT; + + return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_CTL1, val); +} + /* Offset 0x06: Port Based VLAN Map */ int mv88e6xxx_port_set_vlan_map(struct mv88e6xxx_chip *chip, int port, u16 map) -- cgit