On Wed, Dec 16, 2020 at 05:13:34PM -0800, Jakub Kicinski wrote: > On Wed, 16 Dec 2020 12:32:38 +0100 Holger Assmann wrote: > > As it is, valid SIOCSHWTSTAMP ioctl calls - i.e. enable/disable time > > stamping or changing filter settings - lead to synchronization of the > > NIC's hardware clock with CLOCK_REALTIME. This might be necessary > > during system initialization, but at runtime, when the PTP clock has > > already been synchronized to a grand master, a reset of the timestamp > > settings might result in a clock jump.
+1 for keeping the PHC time continuous. > Please remember to CC Richard, the PTP maintainer. +1 to that, too! Thanks, Richard