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From: jlnance@unity.ncsu.edu
Date: Tue, 28 Jan 2003 08:16:00 -0500
To: linux-kernel@vger.kernel.org
Subject: Re: sendfile support in linux
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On Mon, Jan 27, 2003 at 05:45:20PM -0800, Stanley Yee wrote:
> I'm trying to find out more about sendfile(2).  So far, from what I've
> gathered, it sounds like the requirements for it are (please correct me if
> I'm wrong):
> 
> 1.  A kernel with sendfile support (i.e. 2.4.X)
> 2.  A network card capable of doing the TCP checksum in the hardware
> 3.  The application must support sendfile 

I believe that 2 is only necessary for zero-copy sendfile.  The system
call will work regardless of whether the network card does the TCP
checksum or not.

Thanks,

Jim
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