Re: [PATCH net-next 3/5] net: dsa: mv88e6xxx: Let taggers specify a can_timestamp function

[Richard Cochran]

On Thu, May 30, 2019 at 05:47:55PM +0300, Vladimir Oltean wrote:
> Yes, they don't identify the original frame.
> The hardware's line of thinking seems to be "The meta frame is sent
> immediately after the trapped frame that triggered the action." (quote
> from https://www.nxp.com/docs/en/user-guide/UM10944.pdf).

Hm.

> If there was any other way to retrieve RX timestamps I would have done
> it already.

So it cannot even possibly work.
 
Sorry,
Richard