Message-ID: <4299EF16.2050208@pobox.com>
Date: Sun, 29 May 2005 12:34:30 -0400
From: Jeff Garzik <jgarzik@pobox.com>
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To: Erik Slagter <erik@slagter.name>
CC: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org,
       Jens Axboe <axboe@suse.de>
Subject: Re: Playing with SATA NCQ
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Erik Slagter wrote:
> On Thu, 2005-05-26 at 16:00 +0200, Jens Axboe wrote:
> 
>>Now, this patch is not complete. It should work and work well, but error
>>handling isn't really tested or finished yet (by any stretch of the
>>imagination). So don't use this on a production machine, it _should_ be
>>safe to use on your test boxes and for-fun workstations though (I run it
>>here...). I have tested on ich6 and ich7 generation ahci, and with
>>Maxtor and Seagate drives.
> 
> 
> Is this supposed to work on ICH7 in legacy mode as well?

Nope.  ata_piix does not support NCQ (because the h/w doesn't support).


> Another question: is there a fundamental problem to have the ICH6/7
> enabled AHCI mode by the kernel instead of the BIOS? I know some BIOSes
> don't offer the choice to enable AHCI (like mine :-().

Not a problem.  You just don't get to use AHCI and such.

	Jeff


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