Mellanox ConnectX-6 Dx suffers time drift when setting PTP NIC clock
Issue
- Mellanox ConnectX-6 Dx suffers time drift when setting PTP NIC clock
- Using
phc2systo set the NIC clock on a nVidia Mellanox ConnectX-6 Dx NIC results in increasingly large time drift. This only happens in a Dell system, not in a different HP system. nVidia Mellanox support cannot reproduce this with the same NIC and firmware.
Environment
- Red Hat Enterprise Linux 8.10
kernel-4.18.0-553.22.1.el8_10.x86_64- Dell Poweredge R740
- Mellanox ConnectX-6 Dx
[15b3:101d]with firmware 22.39.1002 usingmlx5driver phc2sys -s CLOCK_REALTIME -c ens3f0 -O 0 -u 60to set PTP clock- No PTP timesync on network, no grandmaster
- chrony syncing system clock using NTP
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