> -----Original Message----- > From: Richard Cochran <richardcoch...@gmail.com> > Sent: Wednesday, July 07, 2021 7:15 AM > To: Дмитрий Кандыбка <d.kandy...@gmail.com> > Cc: linuxptp-users@lists.sourceforge.net > Subject: Re: [Linuxptp-users] HW timestamp issue > > On Wed, Jul 07, 2021 at 03:02:39PM +0300, Дмитрий Кандыбка wrote: > > I've met with ptp4l timesync issue. Master send SYNC packets without > > timestamp and slave doesn't handle this case when twoStepFlag set to 1. The > > IEEE 1588 standard says that SYNC messages in 2-step ptp don't need > > timestamp. It enough to have timestamp in FOLLOW_UP messages. > > No, you are mistaken. The Sync message needs an ingress time stamp at > the client. > > > *Software versions*: > > *# ethtool -i enp2s0f0 > > * > > driver: i40e > > This one again! Always causing trouble. >
Heh, yep this driver has been problematic in the past. > > *linux kernel version: *4.15.0-142-generic > > Might be too old. I guess the i40e driver has bugs. Try an up to > date kernel. > > Good luck, > Richard I would recommend trying a newer kernel and seeing if this improves. I am not really aware of any specific issue related to missing ingress timestamps though :( Thanks, Jake _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users
