netdev - Re: [net-next PATCH] net: Optimize local checksum offload

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Date:	Thu, 18 Feb 2016 15:29:43 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	aduyck@...antis.com
Cc:	netdev@...r.kernel.org
Subject: Re: [net-next PATCH] net: Optimize local checksum offload

From: Alexander Duyck <aduyck@...antis.com>
Date: Wed, 17 Feb 2016 11:23:55 -0800

> This patch takes advantage of several assumptions we can make about the
> headers of the frame in order to reduce overall processing overhead for
> computing the outer header checksum.
> 
> First we can assume the entire header is in the region pointed to by
> skb->head as this is what csum_start is based on.
> 
> Second, as a result of our first assumption, we can just call csum_partial
> instead of making a call to skb_checksum which would end up having to
> configure things so that we could walk through the frags list.
> 
> Signed-off-by: Alexander Duyck <aduyck@...antis.com>

Applied, thanks Alex.