Hello folks,
I am using Mellanox Connect X5 dual port 100G card whose PTP clock
devices (/dev/ptp0, /dev/ptp1) were synced using ptp4l and phc2sys via a
PTP Appliance. We now install a KVM on the physical host and setup the
Mellanox NIC as pass thru to the KVM. The KVM has the module ptp_kvm
(/dev/ptp2) installed in it and i am able to successfully run phc2sys to
sync /dev/ptp0 from /dev/ptp2 using the command
phc2sys -O 35 -s /dev/ptp2 -c /dev/ptp0
NOTE: I am not using ptp4l inside the KVM since the ptp_kvm device gives
the accurate time from the host that is already being synced using
ptp4l/phc2sys on the host
But i am unable to provide an additional "-c" here to sync the other
ptp device in the KVM.
I know that is possible using the boundary clock config option in ptp4l
when we have ptp4l and phc2sys running in automatic mode since we had
that working on the host without the KVM.
So any suggestions on how do i do phc2sys for multiple destination devices ?
--
cheers,
Hussam
(Hussamuddin Nasir)
Netlab, GENI & FABRIC Operations Team
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University of Kentucky
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