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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>,
	"linux-ide@vger.kernel.org" <linux-ide@vger.kernel.org>,
	Albert Lee <albertcc@tw.ibm.com>
Subject: Re: PATA drivers in libata?
Date: Mon, 14 Feb 2005 20:42:02 +0000	[thread overview]
Message-ID: <1108405679.23533.20.camel@localhost.localdomain> (raw)
In-Reply-To: <420FEDE6.20904@pobox.com>

On Llu, 2005-02-14 at 00:16, Jeff Garzik wrote:
> Error handling is -very- stupid simple right now:  if we get an error, 
> report that error in the struct request [based on your ATA -> SCSI sense 
> conversion] back to upper layer.
> 
> It needs to be fleshed out into separate host bus / ATA bus / device 
> errors, and handled accordingly.

Thats a barrier to real PATA IDE I guess then. We see a lot of cable
errors and speed change downs and not all are caused by misdetecting
80wire cables.

The current IDE layer does speed changes synchronously outside the state
machine which makes a nasty mess when your error handling interrupt
state wants to speed change.

Alan


  reply	other threads:[~2005-02-14 21:47 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-02-13 18:51 PATA drivers in libata? Jeff Garzik
2005-02-13 21:12 ` Mark Hahn
2005-02-13 22:01   ` Jeff Garzik
2005-02-14  0:19     ` Doug Maxey
2005-02-14  0:25       ` Jeff Garzik
2005-02-13 22:38 ` Alan Cox
2005-02-14  0:16   ` Jeff Garzik
2005-02-14 20:42     ` Alan Cox [this message]
2005-02-17  1:13       ` Benjamin Herrenschmidt
2005-02-17  1:11 ` Benjamin Herrenschmidt

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