diff options
| author | Heiner Kallweit <hkallweit1@gmail.com> | 2024-02-12 21:59:26 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-02-14 05:53:05 +0300 |
| commit | 9c50139727265c088f936e496777bf588850e9f1 (patch) | |
| tree | f7be8a0aa92c8ab163c10827aa64a881f146d194 /drivers | |
| parent | 57d2d2c8f132c830565058a5cdd8138350e068ec (diff) | |
| download | linux-9c50139727265c088f936e496777bf588850e9f1.tar.xz | |
r8169: add support for returning tx_lpi_timer in ethtool get_eee
Add support for returning the tx_lpi_timer value to userspace.
This is supported by few chip versions only: RTL8168h/RTL8125/RTL8126
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/4eee9c34-c5d6-4c96-9b05-455896dea59a@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169_main.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index 5244f24a7cb8..7d3f6d59be8c 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -2053,14 +2053,34 @@ static void rtl_set_eee_txidle_timer(struct rtl8169_private *tp) } } +static unsigned int r8169_get_tx_lpi_timer_us(struct rtl8169_private *tp) +{ + unsigned int speed = tp->phydev->speed; + unsigned int timer = tp->tx_lpi_timer; + + if (!timer || speed == SPEED_UNKNOWN) + return 0; + + /* tx_lpi_timer value is in bytes */ + return DIV_ROUND_CLOSEST(timer * BITS_PER_BYTE, speed); +} + static int rtl8169_get_eee(struct net_device *dev, struct ethtool_keee *data) { struct rtl8169_private *tp = netdev_priv(dev); + int ret; if (!rtl_supports_eee(tp)) return -EOPNOTSUPP; - return phy_ethtool_get_eee(tp->phydev, data); + ret = phy_ethtool_get_eee(tp->phydev, data); + if (ret) + return ret; + + data->tx_lpi_timer = r8169_get_tx_lpi_timer_us(tp); + data->tx_lpi_enabled = data->tx_lpi_timer ? data->eee_enabled : false; + + return 0; } static int rtl8169_set_eee(struct net_device *dev, struct ethtool_keee *data) |