Re: [PATCH 2/3] WIN_* -> ATA_CMD_* conversion: update WIN_* users to use ATA_CMD_*

From: Jens Axboe
Date: Mon Nov 08 2004 - 03:58:54 EST

On Fri, Nov 05 2004, Chris Wedgwood wrote:
> > In particular, most Maxtor and Western Digital Drives will not
> > recover from errors with this command sequence. The preferred error
> > recovery is to do a reset followed by a set features, because that
> > is what Windows does (as told to me by a drive vendor).
> I assume for Windows they do that for all drives? Even older ones?
> I also wonder what happens with TCQ when you get an error? Do you
> just retry everything outstanding?

Any error typically causes an invalidation of the queue, so yes you just
start from scratch. Since PATA doesn't support TCQ anymore, it's not a
worry though :)

Jens Axboe

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