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Date:      Mon, 9 Nov 1998 20:22:17 -0700 (MST)
From:      "Kenneth D. Merry" <ken@plutotech.com>
To:        asami@cs.berkeley.edu (Satoshi Asami)
Cc:        scsi@FreeBSD.ORG
Subject:   Re: turning off tagged queuing with CAM?
Message-ID:  <199811100322.UAA06848@panzer.plutotech.com>
In-Reply-To: <199811100140.RAA23827@vader.cs.berkeley.edu> from Satoshi Asami at "Nov 9, 98 05:40:01 pm"

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Satoshi Asami wrote...
> Hi Justin and Ken (and others :),
> 
> Is it possible to turn off tagged queuing with the current version of
> CAM?  There used to be an AHC_TAGENABLE variable but it seems to have
> gone away.  I looked at the mode pages but couldn't find anything
> suspicious.
> 
> Here's one of the systems:
[ ... ]

You can do a couple of things:

 - put a quirk entry in cam_xpt.c and set the minimum and maximum tag
   counts to 0.  (there are a couple of examples for that)

 - edit mode page 10 (0x0a) and set the DQue bit to 1.

Either one of those will do what you want.

I guess you must have a firmware problem that makes you want to disable
tagged queueing?

Ken
-- 
Kenneth Merry
ken@plutotech.com

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