linux-kernel - Re: [PATCH] sata_nv: fix ADMA ATAPI issues with memory over 4GB (v3)

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Message-ID: <47476E31.2070801@garzik.org>
Date:	Fri, 23 Nov 2007 19:20:01 -0500
From:	Jeff Garzik <jeff@...zik.org>
To:	Robert Hancock <hancockr@...w.ca>
CC:	Mark Lord <liml@....ca>, "Morrison, Tom" <tmorrison@...irix.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	ide <linux-ide@...r.kernel.org>, Tejun Heo <htejun@...il.com>
Subject: Re: [PATCH] sata_nv: fix ADMA ATAPI issues with memory over 4GB (v3)

Robert Hancock wrote:
> Based on a quick look at sata_mv it appears it sets a 64-bit DMA mask 
> unconditionally, but for non-ATA_PROT_DMA commands (which includes all 
> ATAPI), it just falls back to ata_qc_issue_prot which issues via the 
> legacy SFF interface and can only handle 32-bit addressing. So yes, it 
> appears to have a similar bug as sata_nv had.


sata_mv doesn't do ATAPI at all...

	Jeff


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