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Date:      Fri, 16 Nov 2007 01:04:14 +0100
From:      Andre Oppermann <andre@freebsd.org>
To:        Jack Vogel <jfvogel@gmail.com>
Cc:        freebsd-net@freebsd.org, freebsd-current@freebsd.org, "Wilkinson, Alex" <Alex.Wilkinson@dsto.defence.gov.au>
Subject:   Re: I/OAT ... Coming Soon ?
Message-ID:  <473CDE7E.80008@freebsd.org>
In-Reply-To: <2a41acea0711141712x533bcdbex92df05280311be8e@mail.gmail.com>
References:  <1B860D81B4F3F44398B9AE84D91C151671D11B@stlex510.dsto.defence.gov.au> <2a41acea0711141712x533bcdbex92df05280311be8e@mail.gmail.com>

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Jack Vogel wrote:
> On Nov 14, 2007 5:01 PM, Wilkinson, Alex
> <Alex.Wilkinson@dsto.defence.gov.au> wrote:
>> Hi all,
>>
>> Curious, is I/OAT [http://www.intel.com/go/ioat/] coming to FreeBSD soon
>> ?
> 
> LOL, I did a driver for the first version of I/OAT more than a year
> ago, submitted it and interest was half hearted.

IMHO the biggest drawback (design failure) is the polling requirement
for the work queue.  Ideally it would be structured like a NIC with
its DMA engine and rings.

> The driver needs updating and polishing yet, but interest being what it was
> it hasn't been a real high priority.

-- 
Andre




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