To: linux-kernel@vger.kernel.org
From: Matthieu CASTET <castet.matthieu@free.fr>
Subject: Re: [PATCH 0/8] Intel I/O Acceleration Technology (I/OAT)
Date: Sun, 05 Mar 2006 17:14:19 +0100
Message-ID: <pan.2006.03.05.16.14.19.327190@free.fr>
References: <Pine.LNX.4.61.0603041945520.29991@yvahk01.tjqt.qr> <20060304.134144.122314124.davem@davemloft.net> <200603041705.41990.gene.heskett@verizon.net> <20060304.141643.04633220.davem@davemloft.net>
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Hi,
Le Sat, 04 Mar 2006 14:16:43 -0800, David S. Miller a ?crit?:

> From: Gene Heskett <gene.heskett@verizon.net>
> Date: Sat, 04 Mar 2006 17:05:41 -0500
> 
>> On Saturday 04 March 2006 16:41, David S. Miller wrote:
>> >From: Jan Engelhardt <jengelh@linux01.gwdg.de>
>> >Date: Sat, 4 Mar 2006 19:46:22 +0100 (MET)
>> >
>> >> Does this buy the normal standard desktop user anything?
>> >
>> >Absolutely, it optimizes end-node performance.
>> 
>> Is this quantifiable?, and does it only apply to Intel?
> 
> It applies to whoever has a DMA engine in their computer.
> 
But we need a special driver ?
The IOAT driver from intel seems to expect a pci device (0x8086 0x1a38)
and the common x86 computer have their dma in lpc/isa bridge.


Matthieu

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