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From: Octavian Purdila <opurdila@ixiacom.com>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David Miller <davem@davemloft.net>,
	shemminger@vyatta.com, netdev@vger.kernel.org
Subject: Re: [RFC] [PATCH] ip: skip IP checksum for skbs with CHECKSUM_UNNECESSARY set
Date: Sat, 23 Aug 2008 12:58:11 +0300	[thread overview]
Message-ID: <200808231258.12397.opurdila@ixiacom.com> (raw)
In-Reply-To: <E1KWlT3-0001HJ-00@gondolin.me.apana.org.au>

From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Sat, 23 Aug 2008 15:15:17 +1000

> > I don't think they want this for performance, they want to not have to
> > compute the IP header checksum in their HW LRO implementation, which
> > is just as silly :-)

Yes, this was the intention, it seemed like a reasonable trade-off between FPGA 
space & complexity / software complexity at the time. Thanks for the input, 
will do it in hardware then.

> I sure hope they're not planning on leaving out the IP header
> checksum verification too :)

Of course not :) 

tavi


  reply	other threads:[~2008-08-23 10:01 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-22 19:24 [RFC] [PATCH] ip: skip IP checksum for skbs with CHECKSUM_UNNECESSARY set Octavian Purdila
2008-08-22 22:33 ` Stephen Hemminger
2008-08-23  0:36   ` David Miller
2008-08-23  1:59     ` Stephen Hemminger
2008-08-23  5:15     ` Herbert Xu
2008-08-23  9:58       ` Octavian Purdila [this message]
2008-08-22 22:53 ` David Miller

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