Yes i can get it working with multiple instances of phc2sys, but was not
sure that was the best way to move forward. Also does any one have
experience using the ptp_kvm module (/dev/ptp_kvm) as a source PHC.
I was looking at the latest devel linuxptp code that has a new program
called "ts2phc" that claims to sync multiple PHCs using a single source
PHC, but when i try this command i get the error
~/linuxptp-code# ts2phc -s /dev/ptp_kvm -c enp7s0 -c enp8s0
failed to arm slaves
Any suggestions there ?
Also when using phc2sys for this task when only one PHC is used as
destination like
/usr/sbin/phc2sys -O 0 -s /dev/ptp_kvm -c enp8s0
Is using the offset set to Zero correct ? the /dev/ptp_kvm gets its time
from the host clock which is already being synced using a ptp4l (and a
phc2sys) on the host running with HW Timestamping
--
cheers,
Hussam
(Hussamuddin Nasir)
Netlab & GENI Operations Team
-------------------------------------------------------------------
Laboratory for Adv. Networking Phone : (859)218-0059
James F Hardymon Building Fax : (859)323-3740
301 Rose Street, Rm 237 E-mail : na...@netlab.uky.edu
Lexington, KY 40506-0495 Web : http://www.netlab.uky.edu
University of Kentucky
**********************
-------------------------------------------------------------------
On 7/22/20 1:45 AM, Miroslav Lichvar wrote:
On Tue, Jul 21, 2020 at 08:43:10PM -0400, nasir via Linuxptp-users wrote:
No. I am passing in both ports to the KVM. The KVM sees three ptpt
devices. One is using the ptp_kvm module and the other two are the
mellanox NICS. I am trying to sync the mellanox clocks using ptp_kvm
as source using phc2sys but using multiple -c options results in
phc2sys uaing the last ptp device in the command as its destination
device
I'm not sure how multiple -c options is supposed to work, but I think
you could run multiple phc2sys instances, one for each clock that
needs to be synchronized.
_______________________________________________
Linuxptp-users mailing list
Linuxptp-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linuxptp-users
