netdev - Re: tx-checksumming for an Intel Corporation 82540EP Gigabit Ethernet Controller (Mobile)

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Message-ID: <20080421045034.GA7550@gondor.apana.org.au>
Date:	Mon, 21 Apr 2008 12:50:34 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	David Miller <davem@...emloft.net>
Cc:	dpn@...merica.net, toralf.foerster@....de, netdev@...r.kernel.org
Subject: Re: tx-checksumming for an Intel Corporation 82540EP Gigabit Ethernet Controller (Mobile)

On Sun, Apr 20, 2008 at 09:24:51PM -0700, David Miller wrote:
>
> But every time we say this they keep coming back at us that they can't
> change the tcpdump raw dump file format that's been used for
> centuries, and naturally it was designed without any extensibility in
> mind so there's nowhere to store the checksum indication.

They could always fix up the checksums if it has to be written
out.  Alternatively it could notice that the checksum is exactly
that of the pseudo-header and flag it differently versus just any
checksum error.

Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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