From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Hugh Dickins <hugh@veritas.com>, Jeff Garzik <jgarzik@redhat.com>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: 2.6.29-rc libata sff 32bit PIO regression
Date: Wed, 04 Feb 2009 14:10:58 +0300 [thread overview]
Message-ID: <498977C2.3020305@ru.mvista.com> (raw)
In-Reply-To: <20090126191151.18b094e6@lxorguk.ukuu.org.uk>
Hello.
Alan Cox wrote:
>> [PATCH] libata sff: 32bit PIO use 16bit on slop
>>
>> 871af1210f13966ab911ed2166e4ab2ce775b99d libata: Add 32bit PIO support
>> causes errors on a four-year-old ata_piix Dell Precision 670. Using
>> 16bit PIO instead of 32bit PIO on the odd 1, 2 or 3 chars fixes that.
>>
>> Signed-off-by: Hugh Dickins <hugh@veritas.com>
>>
>
> For the 3 bytes of slop it should use a single iowrite32 but otherwise
> that seems ok.
I'm not really sure what this would achieve but I can post a patch
implementing this (based on my suggestion to Hugh).
MBR, Sergei
next prev parent reply other threads:[~2009-02-04 11:11 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-21 13:34 2.6.29-rc libata sff 32bit PIO regression Hugh Dickins
2009-01-21 20:11 ` Mikael Pettersson
2009-01-21 21:47 ` Alan Cox
2009-01-21 22:51 ` Sergei Shtylyov
2009-01-21 22:58 ` Alan Cox
2009-01-21 23:34 ` Sergei Shtylyov
2009-01-21 23:37 ` Sergei Shtylyov
2009-01-22 0:20 ` Sergei Shtylyov
2009-01-25 15:22 ` Alan Cox
2009-01-26 19:11 ` Alan Cox
2009-01-31 15:11 ` Sergei Shtylyov
2009-01-31 16:06 ` Alan Cox
2009-01-31 16:57 ` Sergei Shtylyov
2009-02-01 21:13 ` Hugh Dickins
2009-02-02 11:48 ` Sergei Shtylyov
2009-02-02 12:12 ` Hugh Dickins
2009-02-02 14:17 ` Sergei Shtylyov
2009-02-03 3:59 ` Jeff Garzik
2009-02-04 11:10 ` Sergei Shtylyov [this message]
2009-01-26 19:12 ` Alan Cox
2009-02-03 4:00 ` Jeff Garzik
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