Re: [Linuxptp-users] Master offsets don't converge

[Keller, J. E <jac...@in...>]

On Fri, 2016-01-15 at 19:40 +0000, Daniel Le wrote:
> Hi Jake, 
> 
> Because my hardware NIC is not 1588 capable and that would require
> FPGA change, however I'm hoping to get better timestamp accuracy from
> the hardware clock that is tuned to the host system clock in software
> timestamping mode (which I understand it's in the reverse direction
> of LinuxPTP hardware timestamping configuration where the system
> clock synchronizes to the PHC clock instead).
> 
> Daniel

If you have a hardware clock which you can slew, and the ability to
take hardware timestamps I am failing to see how you are unable to
implement the PHC subsystem calls?

I suspect however you are converting the timestamps taken by hardware
is incorrect, and we can't help you with that easily.

This is the first place I would look for an issue, especially if you
can confirm that your software timestamps without the special ethernet
driver work as expected.

Regards,
Jake