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Date: Tue, 03 Sep 2002 03:00:25 -0700 (PDT)
Message-Id: <20020903.030025.07037175.davem@redhat.com>
To: ak@suse.de
Cc: kuznet@ms2.inr.ac.ru, scott.feldman@intel.com,
       linux-kernel@vger.kernel.org, linux-net@vger.kernel.org,
       haveblue@us.ibm.com, Manand@us.ibm.com, christopher.leech@intel.com
Subject: Re: TCP Segmentation Offloading (TSO)
From: "David S. Miller" <davem@redhat.com>
In-Reply-To: <p73y9ajqw85.fsf@oldwotan.suse.de>
References: <20020903.164243.21934772.taka@valinux.co.jp.suse.lists.linux.kernel>
	<20020903.005119.50342945.davem@redhat.com.suse.lists.linux.kernel>
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   From: Andi Kleen <ak@suse.de>
   Date: 03 Sep 2002 11:05:30 +0200

   x86-64 handles it (also in csum-copy). I think at least Alpha does it 
   too (that is where I stole the C csum-partial base from) But it's ugly.
   See the odd hack. 

Ok I think we really need to fix this then in the arches
where broken.  Let's do an audit. :-)

I question if x86 is broken at all.  It checks odd lengths
and x86 handles odd memory accesses transparently.  Please,
some x86 guru make some comments here :-)

It looks like sparc64 is the only platform where oddly aligned buffer
can truly cause problems and I can fix that easily enough.
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