diff options
| author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2023-08-17 16:32:32 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2025-04-04 14:39:50 +0100 |
| commit | be000a2b108eb4b8b9af49d85974543aac0e8fdc (patch) | |
| tree | bfc57bfa412eb7e1fd793a0ea97c5b75d813e6f8 | |
| parent | 743404aecfeb62105432b5155a7dd0e5db69f609 (diff) | |
net: dsa: mv88e6xxx: add EEE controls
Add phylink EEE control methods to allow EEE to be configured. When
LPI is to be disabled, we force the port to have EEE disabled, but
when enabling EEE, if the port is under the control of the PPU, we
stop forcing it, otherwise we force-enable EEE.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/chip.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 5db96ca52505..6078f466fec8 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -1024,6 +1024,51 @@ error: "p%d: failed to configure MAC link up\n", port); } +static void mv88e6xxx_mac_disable_tx_lpi(struct phylink_config *config) +{ + struct dsa_port *dp = dsa_phylink_to_port(config); + struct mv88e6xxx_chip *chip = dp->ds->priv; + int port = dp->index; + int err; + + if (!chip->info->ops->port_set_eee) + return; + + mv88e6xxx_reg_lock(chip); + err = chip->info->ops->port_set_eee(chip, port, EEE_FORCE_DISABLE); + mv88e6xxx_reg_unlock(chip); + + if (err) + dev_err(chip->dev, "p%d: failed to set EEE mode: %pe\n", port, + ERR_PTR(err)); +} + +static int mv88e6xxx_mac_enable_tx_lpi(struct phylink_config *config, + u32 timer, bool tx_clock_stop) +{ + struct dsa_port *dp = dsa_phylink_to_port(config); + struct mv88e6xxx_chip *chip = dp->ds->priv; + int port = dp->index; + int eee, err; + + if (!chip->info->ops->port_set_eee) + return -EOPNOTSUPP; + + mv88e6xxx_reg_lock(chip); + if (mv88e6xxx_port_ppu_updates(chip, port)) + eee = EEE_UNFORCED; + else + eee = EEE_FORCE_DISABLE; + err = chip->info->ops->port_set_eee(chip, port, eee); + mv88e6xxx_reg_unlock(chip); + + if (err) + dev_err(chip->dev, "p%d: failed to set EEE mode: %pe\n", port, + ERR_PTR(err)); + + return err; +} + static int mv88e6xxx_stats_snapshot(struct mv88e6xxx_chip *chip, int port) { int err; @@ -7112,6 +7157,8 @@ static const struct phylink_mac_ops mv88e6xxx_phylink_mac_ops = { .mac_finish = mv88e6xxx_mac_finish, .mac_link_down = mv88e6xxx_mac_link_down, .mac_link_up = mv88e6xxx_mac_link_up, + .mac_disable_tx_lpi = mv88e6xxx_mac_disable_tx_lpi, + .mac_enable_tx_lpi = mv88e6xxx_mac_enable_tx_lpi, }; static const struct dsa_switch_ops mv88e6xxx_switch_ops = { |