linux-kernel - Re: ata link not reset properly

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Message-ID: <4C25B45C.9080805@kernel.org>
Date:	Sat, 26 Jun 2010 10:03:40 +0200
From:	Tejun Heo <tj@...nel.org>
To:	Robert Hancock <hancockrwd@...il.com>
CC:	Ortwin Glück <odi@....ch>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: ata link not reset properly

Hello,

On 06/26/2010 06:07 AM, Robert Hancock wrote:
> Ahh, ok, it's not sata_nv at all then, it's pata_amd. On the same chip,
> totally different controller though.
> 
> PATA doesn't normally use hard-resets as a means of error recovery -
> that would mean hitting the RESET line, which I don't think most
> controllers can do on software command (it usually only gets asserted on
> power up or hitting the reset button), unlike on SATA where there's a
> defined way to trigger a COMRESET which is mostly equivalent. Also, that
> resets both devices on the channel, unlike soft reset which is specific
> to one device.

Yeah, if it's pata_amd and SRST isn't recovering the device, there
isn't much else to do.  :-(

Thanks.

-- 
tejun
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