Re: [PATCH v2 net] net: fec: fix hardware time stamping by external devices

From: Richard Cochran
Date: Tue Jul 14 2020 - 10:01:39 EST


On Sat, Jul 11, 2020 at 03:08:42PM +0300, Sergey Organov wrote:
> Fix support for external PTP-aware devices such as DSA or PTP PHY:
>
> Make sure we never time stamp tx packets when hardware time stamping
> is disabled.
>
> Check for PTP PHY being in use and then pass ioctls related to time
> stamping of Ethernet packets to the PTP PHY rather than handle them
> ourselves. In addition, disable our own hardware time stamping in this
> case.
>
> Fixes: 6605b73 ("FEC: Add time stamping code and a PTP hardware clock")
> Signed-off-by: Sergey Organov <sorganov@xxxxxxxxx>
> ---
>
> v2:
> - Extracted from larger patch series
> - Description/comments updated according to discussions
> - Added Fixes: tag

Acked-by: Richard Cochran <richardcochran@xxxxxxxxx>