netdev - Re: [PATCH net] enic: fix rx skb checksum

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Date:	Fri, 19 Dec 2014 15:45:59 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	jbenc@...hat.com
Cc:	_govind@....com, netdev@...r.kernel.org, ssujith@...co.com,
	benve@...co.com, sassmann@...hat.com
Subject: Re: [PATCH net] enic: fix rx skb checksum

From: Jiri Benc <jbenc@...hat.com>
Date: Fri, 19 Dec 2014 12:11:44 +0100

> On Thu, 18 Dec 2014 15:58:42 +0530, Govindarajulu Varadarajan wrote:
>> Hardware always provides compliment of IP pseudo checksum. Stack expects
>> whole packet checksum without pseudo checksum if CHECKSUM_COMPLETE is set.
>> 
>> This causes checksum error in nf & ovs.
>> 
>> [...]
>> 
>> Hardware verifies IP & tcp/udp header checksum but does not provide payload
>> checksum, use CHECKSUM_UNNECESSARY. Set it only if its valid IP tcp/udp packet.
>> 
>> Cc: Jiri Benc <jbenc@...hat.com>
>> Cc: Stefan Assmann <sassmann@...hat.com>
>> Reported-by: Sunil Choudhary <schoudha@...hat.com>
>> Signed-off-by: Govindarajulu Varadarajan <_govind@....com>
> 
> Reviewed-by: Jiri Benc <jbenc@...hat.com>

Applied, thanks.
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