linux-kernel - Re: SATA DOM is not identified by ata

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Message-ID: <20080115110218.24a18b27@lxorguk.ukuu.org.uk>
Date:	Tue, 15 Jan 2008 11:02:18 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	"Mao Rui" <maorui@...ad.com>
Cc:	<linux-kernel@...r.kernel.org>
Subject: Re: SATA DOM is not identified by ata_piix module

On Tue, 15 Jan 2008 18:11:25 +0800
"Mao Rui" <maorui@...ad.com> wrote:

> Hi,
> 
> I have a PQI Turbo SATA DOM. It works well under Windows. I installed it in
> a SuperMicro motherboard, Intel 5000P chipset. The OS is Ubuntu 7.04, kernel
> 2.6.20-15. But the DOM is not appeared as a device node, and I found several
> error messages in kernel log.

Generally it is a good idea to report problems with vendor built kernels
to the vendor and their support, especially one that is 3 releases behind.
They have a much better idea what is in that kernel and who else has seen
problems.

> [   67.124299] ata2.00: qc timeout (cmd 0x91)
> [   67.124306] ata2.00: failed to IDENTIFY (INIT_DEV_PARAMS failed,
> err_mask=0x4)

We issued commands, it didn't respond. That could be a libata problem but
actually looks more like an IRQ routing problem.

> Actually I also have a PQI IDE DOM, it have same error with Ubuntu 7.04 /

The PQI DOM is a bit odd, it is however known to work with libata at
least for the PATA one, and the versions which don't understand
SET_XFER_MODE to work with current kernels. (Your failure mode isn't the
SET_XFER_MODE one - it hasn't got that far).

Alan
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