From: Tejun Heo <tj@kernel.org>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: linux--ide-momail.e4ward.com-linux--ide-vger.kernel.org-CDD-6w99-4@reply.e4ward.com,
Jeff Garzik <jeff@garzik.org>, Robert Hancock <hancockr@shaw.ca>,
peter.klotz@aon.at, linux-ide@vger.kernel.org
Subject: Re: [PATCH #upstream-fixes] libata: implement and use HORKAGE_NOSETXFER
Date: Wed, 07 Jan 2009 19:27:49 +0900 [thread overview]
Message-ID: <496483A5.6020105@kernel.org> (raw)
In-Reply-To: <20090107094043.580f5bf7@lxorguk.ukuu.org.uk>
Alan Cox wrote:
> On Wed, 07 Jan 2009 11:01:05 +0900
> Tejun Heo <tj@kernel.org> wrote:
>
>> PIONEER DVD-RW DVRTD08 times out SETXFER if no media is present. The
>> device is SATA and simply skipping SETXFER works around the problem.
>> Implement ATA_HORKAGE_NOSETXFER and apply it to the device.
>
> NAK
>
> Sorry you can't just blindly do this because some of the controllers snoop
> the SETXFER command to set their timings and whether they expect DMA. Also
> we've no idea if this is a bug in a specific firmware revision, a quirky
> pata/sata bridge or a timing problem of some sort.
I think it'll generally be okay for SATA unless it's bridged over to
PATA controller. Any other ideas?
Thanks.
--
tejun
next prev parent reply other threads:[~2009-01-07 10:28 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-21 21:18 PIONEER DVD-RW DVRTD08 is disabled if there is no disc present at boot time linux-ide
2008-12-22 0:22 ` Robert Hancock
2008-12-22 10:02 ` Tejun Heo
2008-12-22 12:13 ` linux-ide
2008-12-23 3:03 ` Tejun Heo
2008-12-24 13:40 ` linux-ide
2008-12-29 8:14 ` Tejun Heo
2008-12-29 21:32 ` linux-ide
2009-01-06 22:51 ` linux-ide
2009-01-07 2:01 ` [PATCH #upstream-fixes] libata: implement and use HORKAGE_NOSETXFER Tejun Heo
2009-01-07 9:40 ` Alan Cox
2009-01-07 10:27 ` Tejun Heo [this message]
2009-01-07 10:53 ` Alan Cox
2009-01-07 11:04 ` Tejun Heo
2009-05-25 3:10 ` Tejun Heo
2009-05-25 8:11 ` Alan Cox
2009-07-08 8:00 ` Tejun Heo
2009-07-08 10:14 ` Alan Cox
2009-07-08 11:16 ` Tejun Heo
2009-07-08 12:21 ` Alan Cox
2009-07-08 23:07 ` Tejun Heo
2009-07-08 14:53 ` Sergei Shtylyov
2009-07-08 15:06 ` Alan Cox
2008-12-29 22:11 ` PIONEER DVD-RW DVRTD08 is disabled if there is no disc present at boot time Peter Klotz
2008-12-22 11:57 ` linux-ide
-- strict thread matches above, loose matches on Subject: below --
2009-01-07 14:15 [PATCH #upstream-fixes] libata: implement and use HORKAGE_NOSETXFER Moritz Rigler
2009-01-07 14:23 ` Alan Cox
2009-01-09 0:11 ` Robert Hancock
2009-01-15 5:48 ` Tejun Heo
2009-01-15 9:45 ` Alan Cox
2009-01-15 10:06 ` Tejun Heo
2009-01-15 13:48 ` Tejun Heo
2009-01-07 14:18 Moritz Rigler
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