diff options
| author | Andrew Lunn <andrew@lunn.ch> | 2020-07-11 22:32:05 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-12 15:22:14 -0700 |
| commit | 2a550aec36543b20f087e4b3063882e9465f7175 (patch) | |
| tree | 4114a508efd06b3d7742c467129422262cbb8da6 /drivers/net/dsa | |
| parent | 94339443686b36d3223bc032b7947267474e2679 (diff) | |
net: dsa: mv88e6xxx: Implement MTU change
The Marvell Switches support jumbo packages. So implement the
callbacks needed for changing the MTU.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/chip.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index d995f5bf0d40..6f019955ae42 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -2693,6 +2693,31 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port) return mv88e6xxx_port_write(chip, port, MV88E6XXX_PORT_DEFAULT_VLAN, 0); } +static int mv88e6xxx_get_max_mtu(struct dsa_switch *ds, int port) +{ + struct mv88e6xxx_chip *chip = ds->priv; + + if (chip->info->ops->port_set_jumbo_size) + return 10240; + return 1522; +} + +static int mv88e6xxx_change_mtu(struct dsa_switch *ds, int port, int new_mtu) +{ + struct mv88e6xxx_chip *chip = ds->priv; + int ret = 0; + + mv88e6xxx_reg_lock(chip); + if (chip->info->ops->port_set_jumbo_size) + ret = chip->info->ops->port_set_jumbo_size(chip, port, new_mtu); + else + if (new_mtu > 1522) + ret = -EINVAL; + mv88e6xxx_reg_unlock(chip); + + return ret; +} + static int mv88e6xxx_port_enable(struct dsa_switch *ds, int port, struct phy_device *phydev) { @@ -5525,6 +5550,8 @@ static const struct dsa_switch_ops mv88e6xxx_switch_ops = { .get_sset_count = mv88e6xxx_get_sset_count, .port_enable = mv88e6xxx_port_enable, .port_disable = mv88e6xxx_port_disable, + .port_max_mtu = mv88e6xxx_get_max_mtu, + .port_change_mtu = mv88e6xxx_change_mtu, .get_mac_eee = mv88e6xxx_get_mac_eee, .set_mac_eee = mv88e6xxx_set_mac_eee, .get_eeprom_len = mv88e6xxx_get_eeprom_len, |