Le 08/07/2021 à 00:25, Keller, Jacob E a écrit : > >> -----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 An don't forget to upgrade the firware of the i40e.
Emmanuel. _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users
