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

From: Richard Cochran
Date: Wed May 29 2019 - 23:54:49 EST

On Wed, May 29, 2019 at 11:33:31PM +0300, Vladimir Oltean wrote:
> I would like to avoid keeping meta frames in their own RX queue,
> because then I'm complicating (or rather put, making impossible) the
> association between a meta frame and the frame it holds a timestamp
> of.

We have an example of how a driver can match meta time stamp packets
with received packets. See drivers/net/phy/dp83640.c to see how it
can be done completely within the driver.