From owner-freebsd-hackers  Fri Sep  8 11: 5:29 2000
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From: Soren Schmidt <sos@freebsd.dk>
Message-Id: <200009081807.UAA81585@freebsd.dk>
Subject: Re: New ATA tagged queuing patch available
In-Reply-To: <39B91BFA.CEA71E57@cybercable.fr> from Thierry Herbelot at "Sep 8, 2000 07:03:54 pm"
To: herbelot@cybercable.fr (Thierry Herbelot)
Date: Fri, 8 Sep 2000 20:07:25 +0200 (CEST)
Cc: hackers@FreeBSD.ORG
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It seems Thierry Herbelot wrote:
> Soren Schmidt wrote:
> > 
> > >From the README:
> > 
> > ATA-tagged-queueing-diff-0908:
> >   Add support for ATA channels with both a master and a slave, even
> >   combos where only on of them supports tagged queuing should work now.
> >   Also only switch on tagged queuing on IBM DPTA & DTLA series
> >   drives, the older DJNA has firmware problems. I am working on
> >   a SW solution to that, but for now only enable tagged queuing
> >   on drives that is known to work.
> > 
> > Get it from http://freebsd.dk, and let me know your results
> > 
> > If I dont get any serious problem reports I'll commit this
> > shortly, making FreeBSD the first OS that has tagged Queuing
> > support for ATA drives :)
> > 
> > -Søren
> 
> Nice try !

Yeah :)

> Any chance an older IBM drive might be supported ?
> <IBM-DTTA-351010/T56OA73A>

Well, the DTTA's say they support tagged queuing, but since the
newer DJNA has firmware problems the DTTA probably has that
too. To be fair I havn't tried it yet, so if you feel adventurous
you can try to add it to the ad_tagsupported function in ata-disk.c
and see what happens....

-Søren


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