Re: [PATCH net v3] net: macb: Fix PTP one step sync support

[Paolo Abeni]

On Wed, 2022-05-18 at 22:37 +0530, Harini Katakam wrote:
> PTP one step sync packets cannot have CSUM padding and insertion in
> SW since time stamp is inserted on the fly by HW.
> In addition, ptp4l version 3.0 and above report an error when skb
> timestamps are reported for packets that not processed for TX TS
> after transmission.
> Add a helper to identify PTP one step sync and fix the above two
> errors. Add a common mask for PTP header flag field "twoStepflag".
> Also reset ptp OSS bit when one step is not selected.
> 
> Fixes: ab91f0a9b5f4 ("net: macb: Add hardware PTP support")
> Fixes: 653e92a9175e ("net: macb: add support for padding and fcs computation")
> Signed-off-by: Harini Katakam <harini.katakam@xxxxxxxxxx>
> Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xxxxxxxxxx>

I'm sorry, but I cut the -net PR to Linus too early for this, so the
fix will have to wait for a little more (no need to repost!) and even
more pause will be required for the net-next follow-up.

Sorry for the inconvenince,

Paolo