diff options
author | Vivien Didelot <vivien.didelot@savoirfairelinux.com> | 2017-06-09 01:34:13 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2017-06-09 19:10:59 +0300 |
commit | cd782656da9037150502a16bbbc46272e00f9b1b (patch) | |
tree | 1a4430b7f7a2d2e619f7a747654a4e681ea43fc0 /drivers/net/dsa/mv88e6xxx/port.c | |
parent | 0898432cc296cc27cee6647f6748f2add37e09b6 (diff) | |
download | linux-cd782656da9037150502a16bbbc46272e00f9b1b.tar.xz |
net: dsa: mv88e6xxx: rework jumbo size operation
Marvell chips have a Jumbo Mode to set the maximum frame size (MTU).
The mv88e6xxx_ops structure is meant to contain generic functionalities,
no driver logic. Change port_jumbo_config to port_set_jumbo_size setting
the mode from a given maximum size value.
There is no functional changes since we still use 10240 bytes.
At the same time, correctly clear all Jumbo Mode bits before writing.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx/port.c')
-rw-r--r-- | drivers/net/dsa/mv88e6xxx/port.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c index ee94d16789a2..efeb8d6b02e6 100644 --- a/drivers/net/dsa/mv88e6xxx/port.c +++ b/drivers/net/dsa/mv88e6xxx/port.c @@ -816,7 +816,8 @@ int mv88e6xxx_port_set_map_da(struct mv88e6xxx_chip *chip, int port) return mv88e6xxx_port_write(chip, port, PORT_CONTROL_2, reg); } -int mv88e6165_port_jumbo_config(struct mv88e6xxx_chip *chip, int port) +int mv88e6165_port_set_jumbo_size(struct mv88e6xxx_chip *chip, int port, + size_t size) { u16 reg; int err; @@ -825,7 +826,16 @@ int mv88e6165_port_jumbo_config(struct mv88e6xxx_chip *chip, int port) if (err) return err; - reg |= PORT_CONTROL_2_JUMBO_10240; + reg &= ~PORT_CONTROL_2_JUMBO_MASK; + + if (size <= 1522) + reg |= PORT_CONTROL_2_JUMBO_1522; + else if (size <= 2048) + reg |= PORT_CONTROL_2_JUMBO_2048; + else if (size <= 10240) + reg |= PORT_CONTROL_2_JUMBO_10240; + else + return -ERANGE; return mv88e6xxx_port_write(chip, port, PORT_CONTROL_2, reg); } |