From: Mark Lord <lkml@rtr.ca>
To: William Thompson <wt@electro-mechanical.com>
Cc: Mark Lord <liml@rtr.ca>, Tejun Heo <htejun@gmail.com>,
linux-kernel@vger.kernel.org,
IDE/ATA development list <linux-ide@vger.kernel.org>,
albertcc@tw.ibm.com
Subject: Re: 2.6.20 libata cdrom
Date: Tue, 01 May 2007 09:24:42 -0400 [thread overview]
Message-ID: <46373F9A.9020705@rtr.ca> (raw)
In-Reply-To: <20070501131818.GA18521@electro-mechanical.com>
William Thompson wrote:
>
> The one thing I do know, the machine with the non-working libata cdrom also
> does not work with the ide driver *ONLY IF* DMA is turned on.
That's probably because it's a mdma2 device, and not many chipsets seem
to do mdma2 correctly. I had a drive like that around here, too.
It could do dma on only one motherboard out of our half dozen or so.
But libata might actually be able to use mdma2 with it,
as I believe (unsubstantiated) that Alan may have done
a better implementation of setting the timings than what
we had with our old IDE drivers.
Cheers
next prev parent reply other threads:[~2007-05-01 13:24 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20070427175205.GD7809@electro-mechanical.com>
[not found] ` <4635C35D.1020807@gmail.com>
[not found] ` <20070430202107.GF5942@electro-mechanical.com>
2007-05-01 4:32 ` 2.6.20 libata cdrom Tejun Heo
2007-05-01 12:17 ` William Thompson
2007-05-01 13:04 ` Mark Lord
2007-05-01 13:18 ` William Thompson
2007-05-01 13:24 ` Mark Lord [this message]
2007-05-01 13:36 ` Alan Cox
2007-05-01 13:40 ` Tejun Heo
2007-05-01 13:51 ` Mark Lord
2007-05-01 14:19 ` Jeff Garzik
2007-05-01 14:23 ` Mark Lord
2007-05-01 14:28 ` Alan Cox
2007-05-01 17:21 ` William Thompson
2007-05-07 16:42 ` [PATCH] libata: fallback to the other IDENTIFY on device error Tejun Heo
2007-05-07 18:05 ` William Thompson
2007-05-08 8:02 ` Tejun Heo
2007-05-10 0:08 ` Jeff Garzik
2007-05-11 12:35 ` [PATCH] libata: fallback to the other IDENTIFY on device error, take#2 Tejun Heo
2007-05-11 22:10 ` Jeff Garzik
2007-05-11 22:10 ` Jeff Garzik
2007-05-13 12:57 ` Tejun Heo
2007-05-13 16:13 ` Dave Jones
2007-05-13 17:50 ` Tejun Heo
2007-05-13 18:13 ` Dave Jones
2007-05-01 18:11 ` 2.6.20 libata cdrom Bartlomiej Zolnierkiewicz
2007-05-01 12:54 ` Mark Lord
2007-05-01 12:55 ` Mark Lord
2007-05-01 13:32 ` Tejun Heo
2007-05-01 13:41 ` Mark Lord
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