linux-kernel - Re: IDE DMA doesn't work with pata

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Message-ID: <20071011111911.0d322827@the-village.bc.nu>
Date:	Thu, 11 Oct 2007 11:19:11 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Philipp Wollermann <philipp@...wo.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: IDE DMA doesn't work with pata_via and compact flash card

> ones, when using DMA. Turning off DMA for the old IDE drivers or 
> patching ata_generic to handle my IDE controller and then deactivating 
> DMA in the BIOS works, but then disk I/O is unbelievable slow.. do you 
> have any idea how to fix it, so that DMA works?

Does your CF/IDE adapter support DMA ?
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