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Date: Fri, 21 Jul 2006 08:47:28 -0700
From: "Jack Vogel" <jfvogel@gmail.com>
To: "Dmitry Pryanishnikov" <dmitry@atlantis.dp.ua>
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References: <200607192230.14939.mi+mx@aldan.algebra.com>
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Cc: Mikhail Teterin <mi+mx@aldan.algebra.com>, net@freebsd.org,
	Julian Elischer <julian@elischer.org>,
	"David G. Lawrence" <dg@dglawrence.com>
Subject: Re: complement to sendfile()?
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On 7/21/06, Dmitry Pryanishnikov <dmitry@atlantis.dp.ua> wrote:
>
> Hello!
>
> On Thu, 20 Jul 2006, Jack Vogel wrote:
> > We, myself and Prafulla Deuskar at Intel LAD, have a driver and stack
> > changes that support Intel's new I/OAT DMA hardware. This is a
> > DMA engine in the chipset. There is potential to use the hardware
> >
> > We are hoping to get this code into CURRENT soon if there
> > is interest.
>
>   Sure there is an interest, spare CPU cycles are never superfluous
> in production environment! What hardware (NICs/chipsets) supports this
> I/OAT DMA engine?
>
> Sincerely, Dmitry

Its part of the Intel Blackford chipset, so for instance Supermicro has a
motherboard and servers with it. I havent looked at what OEMs have
systems available now, but I imagine most the big OEMs will have
systems with this chipset and Woodcrest CPUs soon.

Cheeers,

Jack