On Thu, Jan 21, 2021 at 05:22:37PM +0100, Andrew Lunn wrote: > There is a growing interesting in PTP, the number of drivers keeps > going up. The likelihood of MAC/PHY combination having two > timestamping sources is growing all the time. So the stack needs to > change to support the selection of the timestamp source.
Fine, but How should the support look like? - New/extended time stamping API that delivers multiple time stamps? - sysctl to select MAC/PHY preference at run time globally? - per-interface ethtool control? - per-socket control? (probably not feasible, but heh) Back of the napkin design ideas appreciated! Thanks, Richard