Re: [Linuxptp-users] Hardware PTP clock synchronization

[Richard C. <ric...@gm...>]

On Sat, Aug 03, 2013 at 12:12:22PM +0300, Гаврилов Александр wrote:

> My problem - any way get time values from 82576 in program. May be,
> through modification of the source code driver igb-4.3.0, or
> ptp4l. We havent time to buy a new card. What can you recommend?

I doubt you can fix this by changing the source code. It appears that
the *hardware* is dropping the time stamps.

[ It might possibly be a driver issue, but to find out and fix this
  you need to read and understand both the 82576 data sheet and the
  igb driver, and then figure out what is going wrong. ]

If you find that only some of the Tx time stamps are being missed,
then you can change the fault reset option to ASAP, to let the ptp4l
program continue without the pauses after the faults.

HTH,
Richard