From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <htejun@gmail.com>
Subject: Re: AHCI with ATA/IDE Drives
Date: Mon, 22 Oct 2007 18:34:57 +0900
Message-ID: <471C6EC1.6000703@gmail.com>
References: <a14fb1800710200440hbcb0438sf2b0ee627e6e8209@mail.gmail.com> <471A09B8.2040708@rtr.ca>
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To: Mark Lord <liml@rtr.ca>
Cc: Girish Shirasat <girish.shirasat@googlemail.com>, linux-ide@vger.kernel.org, Alan Cox <alan@redhat.com>, Jeff Garzik <jgarzik@pobox.com>

Mark Lord wrote:
> Alan / Tejun,
> 
> Another case of MDMA2 not working through a SATA->PATA bridge.
> Do we have an easy way yet, for Girish to force non-MDMA2 modes?

libata.dma=1 should do the trick for 2.6.24-rcX.  For 2.6.23, there
isn't any.  :-(

-- 
tejun