netdev - Re: [PATCHv3 net] {xfrm, sctp} Stick to software crc32 even if hardware is capable of that

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Message-ID: <525DF2AB.1050806@windriver.com>
Date:	Wed, 16 Oct 2013 09:58:03 +0800
From:	Fan Du <fan.du@...driver.com>
To:	Vlad Yasevich <vyasevich@...il.com>
CC:	<nhorman@...driver.com>, <steffen.klassert@...unet.com>,
	<davem@...emloft.net>, <netdev@...r.kernel.org>
Subject: Re: [PATCHv3 net] {xfrm, sctp} Stick to software crc32 even if hardware
 is capable of that



On 2013年10月16日 09:52, Vlad Yasevich wrote:
> On 10/15/2013 09:05 PM, Vlad Yasevich wrote:
>> On 10/15/2013 05:19 AM, Fan Du wrote:
>>> igb/ixgbe have hardware sctp checksum support, when this feature is
>>> enabled
>>> and also IPsec is armed to protect sctp traffic, ugly things happened as
>>> xfrm_output checks CHECKSUM_PARTIAL to do check sum operation(sum
>>> every thing
>>> up and pack the 16bits result in the checksum field). The result is fail
>>> establishment of sctp communication.
>>>
>>> Signed-off-by: Fan Du <fan.du@...driver.com>
>>> Cc: Vlad Yasevich <vyasevich@...il.com>
>>> Cc: Neil Horman <nhorman@...driver.com>
>>> Cc: Steffen Klassert <steffen.klassert@...unet.com>
>>> Acked-by: Vlad Yasevich <vyasevich@...il.com>
>>
>> Looks good to me.
>>
>
> Just tryied applying this and looks like you based this on net-next.
> This fixes a rather ugly bug when checksum offloading is done.
> I am going to rebase this and re-submit for net.

:( Sorry for the inconvenience. Stable tree might hurts also.

-- 
浮沉随浪只记今朝笑

--fan
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