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

[Jens Axboe]

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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