Tagged Queueing and Dque Bit

[Justin T. Gibbs]

> After I figured out the Dque bit, and reset it to zero, it worked flawlessly
> with tagged queueing enabled.

> So I would suggest, that the driver should check also the Control Mode
> Page (if available), and should honor the Dque bit (fall back to not use 
> tagged queueing if Dque is set).

This is exactly what the CAM layer does.  It may be the case that in Linux
the individual control drivers have to do this, but it will be messy.  I
don't think that the Linux aic7xxx driver has any code in it currently
to queue and handle it's own SCSI commands.

> Sincerly,
> Klaus
> -- 
> Klaus Steinberger               Beschleunigerlabor der TU und LMU Muenchen
> Phone: (+49 89)289 14287        Hochschulgelaende, D-85748 Garching, Germany
> FAX:   (+49 89)289 14280        EMail: Klaus.Steinberger at Physik.Uni-Muenchen.DE
> URL: http://www.bl.physik.tu-muenchen.de/~k2/

-- 
Justin T. Gibbs
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