Commit 9c501397 authored by Heiner Kallweit's avatar Heiner Kallweit Committed by Jakub Kicinski
Browse files

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: default avatarHeiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/4eee9c34-c5d6-4c96-9b05-455896dea59a@gmail.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 57d2d2c8

drivers/net/ethernet/realtek/r8169_main.c

+21 −1
Original line number Diff line number Diff line
@@ -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)