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Date:      Tue, 04 Jan 2000 10:35:20 -0800
From:      Kent Stewart <kstewart@3-cities.com>
To:        Andrew Otwell <andrew@networkcomputerz.com>
Cc:        "freebsd-questions@FreeBSD.ORG" <freebsd-questions@FreeBSD.ORG>
Subject:   Re: IDE flags
Message-ID:  <38723D68.A82BA1A0@3-cities.com>
References:  <38723C07.A1B70BDD@networkcomputerz.com>

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Andrew Otwell wrote:
> 
> anyone know all the IDE flags for compiling in 16-bit mode, multi-sector
> tranfers, and Ultra DMA support? LINT did not help me much.

Well, multi-sector is "ff". DMA and etc. side effects are 0x2000 and
32-bit mode is 0x8000. So, when you add them all together you get a
"flags 0xa0ffa0ff".

It can improve IDE HD rates by at least 2x.

HTH,

Kent

> 
> Thanks.
> Andrew
> 
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-- 
Kent Stewart
Richland, WA

mailto:kstewart@3-cities.com
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Hunting Archibald Stewart, b 1802 in Ballymena, Antrim Co., NIR
http://www.3-cities.com/~kstewart/genealogy/archibald_stewart.html


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