netdev - Re: [PATCH v4 net 0/3] sctp: Use software checksum under certain

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Message-ID: <525E4818.2080101@redhat.com>
Date:	Wed, 16 Oct 2013 10:02:32 +0200
From:	Daniel Borkmann <dborkman@...hat.com>
To:	Vlad Yasevich <vyasevich@...il.com>
CC:	netdev@...r.kernel.org, linux-sctp@...r.kernel.org,
	fan.du@...driver.com
Subject: Re: [PATCH v4 net 0/3] sctp: Use software checksum under certain

On 10/16/2013 04:01 AM, Vlad Yasevich wrote:
> There are some cards that support SCTP checksum offloading.  When using
> these cards with IPSec or forcing IP fragmentation of SCTP traffic,
> the checksum is computed incorrectly due to the fact that xfrm and IP/IPv6
> fragmentation code do not know that this is SCTP traffic and do not
> know that checksum has to be computed differently.
>
> To fix this, we let SCTP detect these conditions and perform software
> checksum calculation.
>
> Fan Du (1):
>    sctp: Use software crc32 checksum when xfrm transform will happen.
>
> Vlad Yasevich (2):
>    net: dst: provide accessor function to dst->xfrm
>    sctp: Perform software checksum if packet has to be fragmented.
>
>   include/net/dst.h | 12 ++++++++++++
>   net/sctp/output.c |  3 ++-
>   2 files changed, 14 insertions(+), 1 deletion(-)
>

Acked-by: Daniel Borkmann <dborkman@...hat.com>
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