From owner-freebsd-scsi Mon Nov 9 19:22:42 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id TAA02582 for freebsd-scsi-outgoing; Mon, 9 Nov 1998 19:22:42 -0800 (PST) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from panzer.plutotech.com (panzer.plutotech.com [206.168.67.125]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id TAA02575 for ; Mon, 9 Nov 1998 19:22:38 -0800 (PST) (envelope-from ken@panzer.plutotech.com) Received: (from ken@localhost) by panzer.plutotech.com (8.9.1/8.8.5) id UAA06848; Mon, 9 Nov 1998 20:22:17 -0700 (MST) From: "Kenneth D. Merry" Message-Id: <199811100322.UAA06848@panzer.plutotech.com> Subject: Re: turning off tagged queuing with CAM? In-Reply-To: <199811100140.RAA23827@vader.cs.berkeley.edu> from Satoshi Asami at "Nov 9, 98 05:40:01 pm" To: asami@cs.berkeley.edu (Satoshi Asami) Date: Mon, 9 Nov 1998 20:22:17 -0700 (MST) Cc: scsi@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL28s (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org 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 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message