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Date:	Wed, 08 Sep 2010 14:24:01 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	ikofler@....uni-klu.ac.at
Cc:	eric.dumazet@...il.com, netdev@...r.kernel.org
Subject: Re: Problems obtaining software TX timestamps

From: Ingo Kofler <ikofler@....uni-klu.ac.at>
Date: Wed, 08 Sep 2010 23:21:36 +0200

> Ok, for hardware timestamps it seems logically for me that the driver
> has to support this. But what about the software timestamps - do they
> also require support from the driver? Is there no generic
> implementation in the networking stack?

Each and every driver must add the hook because it must be inside of
the driver's transmit function due to packet lifetime issues etc.
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