Re: [RFC PATCH] net: phy: micrel: reset KSZ9x31 when resuming
> What if the configuration was done using ethtool?
The MAC driver when handling ethtool requests should call phy_ethtool_ksettings_set(). That manipulates phydev->advertising, phydev->autoneg etc. These are the values passed by phy_config_aneg() to the PHY driver.