Re: [Linuxptp-users] ptp4l and network connectivity interruption

[Brian W. <br...@wa...>]

On Sat, Dec 12, 2015 at 06:50:45PM +0100, Richard Cochran wrote:
> This is definitely a driver bug.
> 
> Looking at drivers/net/ethernet/intel/e1000e/netdev.c, in the function
> e1000e_config_hwtstamp(), the time is reset whenever time stamping is
> activated.  That doesn't make any sense.
> 
> It looks like the calls to e1000e_get_base_timinca() and
> timecounter_init() are misplaced.  They should go into the probe
> function instead.

I see that. Comparing that code to what happens in the ixgbe driver it
looks like reseting the clock should be part of e1000e_ptp_init. Then
the e1000e_ptp_init code should be called in the device open function to
initialize whenever the device is made active. Pull ptp_init out of the
probe function.

I will see what i can put together to test based off of the ixgbe code.

Brian