netdev - Re: [PATCH v2 net-next] gro: should aggregate frames without DF

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Message-Id: <20130531.171500.2100142825483179922.davem@davemloft.net>
Date:	Fri, 31 May 2013 17:15:00 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	bhutchings@...arflare.com, netdev@...r.kernel.org,
	hkchu@...gle.com, herbert@...dor.apana.org.au
Subject: Re: [PATCH v2 net-next] gro: should aggregate frames without DF

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Fri, 31 May 2013 14:18:10 -0700

> From: Eric Dumazet <edumazet@...gle.com>
> 
> GRO on IPv4 doesn't aggregate frames if they don't have DF bit set.
> 
> Some servers use IP_MTU_DISCOVER/IP_PMTUDISC_PROBE, so linux receivers
> are unable to aggregate this kind of traffic.
> 
> The right thing to do is to allow aggregation as long as the DF bit has
> same value on all segments.
> 
> bnx2x LRO does this correctly.
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied, thanks.
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