Hi,
I'm trying to setup PTP on my 82579V, and it seems that clock speed is 3.84
times faster than expected.
$ phc_ctl /dev/ptp0 -- get wait 1 get
phc_ctl[33374.657]: clock time is 1479697143.971579879 or Mon Nov 21 05:59:03
2016
phc_ctl[33375.657]: process slept for 1.000000 seconds
phc_ctl[33375.657]: clock time is 1479697147.811930581 or Mon Nov 21 05:59:07
2016
$ python -c "print 1479697147.811930581 - 1479697143.971579879"
3.84035086632
Most likely, this device has 96MHz clock instead of 25MHz (these values
are taken from ./drivers/net/ethernet/intel/e1000e/netdev.c file).
How could I fix that?
The kernel is Debian 4.8.5-1.
Relevant dmesg lines:
[ 1.287909] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[ 1.561681] e1000e 0000:00:19.0 eth0: MAC: 10, PHY: 11, PBA No: FFFFFF-0FF
Relevant lsusb lines:
00:19.0 0200: 8086:1503 (rev 04)
DeviceName: LU1
Subsystem: 8086:2031
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