Hi Köry, On Wed, Mar 08, 2023 at 02:59:26PM +0100, Köry Maincent wrote: > From: Kory Maincent <kory.maincent@xxxxxxxxxxx> > > Time stamping on network packets may happen either in the MAC or in > the PHY, but not both. In preparation for making the choice > selectable, expose both the current and available layers via ethtool. > > In accordance with the kernel implementation as it stands, the current > layer will always read as "phy" when a PHY time stamping device is > present. Future patches will allow changing the current layer > administratively. > > Signed-off-by: Richard Cochran <richardcochran@xxxxxxxxx> > Signed-off-by: Kory Maincent <kory.maincent@xxxxxxxxxxx> > --- I'm pretty sure that all new ethtool commands must be implemented through the genetlink socket interface. The ioctl interface stopped being extended and is in maintenance mode only.