From owner-freebsd-scsi Fri May 15 15:31:57 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id PAA16066 for freebsd-scsi-outgoing; Fri, 15 May 1998 15:31:57 -0700 (PDT) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from ns.mauswerks.net (root@ns.mauswerks.com [204.152.96.5]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id PAA16061 for ; Fri, 15 May 1998 15:31:54 -0700 (PDT) (envelope-from mjacob@feral.com) Received: from feral.com (root@[209.54.254.2]) by ns.mauswerks.net (8.8.0/8.6.9) with ESMTP id PAA07393; Fri, 15 May 1998 15:33:50 -0700 Received: from feral-gw (mjacob@gw100.feral.com [192.67.166.129]) by feral.com (8.8.6/8.8.6) with SMTP id PAA16794; Fri, 15 May 1998 15:31:52 -0700 Message-ID: <355CC257.4F4AE38D@feral.com> Date: Fri, 15 May 1998 15:31:51 -0700 From: Matthew Jacob Organization: Feral Software X-Mailer: Mozilla 3.04 (X11; I; Linux 2.0.33 i586) MIME-Version: 1.0 To: scsi@FreeBSD.ORG CC: snively@eng.sun.com Subject: CAM flags && tagging... Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org I notice there's a flag in the CCB header that enables tag action. I haven't got the SCSI-3 CAM2 spec in front of me, but would it specify (or could we extend) to specify what *kind* of tagging is preferred? I'm sewing up the ISP driver for the FreeBSD/CAM, and now that I'm going to really depend upon CAM_TAG_ACTION_ENABLE as a flag, I'd also like to know whether the caller prefers HEAD OF QUEUE, SIMPLE, or ORDERED. BTW- as a side note- for the Qlogic 2100 and FCP-SCSI, you cannot disable tags (you always have to have *some* tag is what I read in the spec), so that defaults to SIMPLE when tagging is otherwise disabled (Bob- do you want to comment)? -matt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message