Date: Fri, 15 May 1998 15:31:51 -0700 From: Matthew Jacob <mjacob@feral.com> To: scsi@FreeBSD.ORG Cc: snively@eng.sun.com Subject: CAM flags && tagging... Message-ID: <355CC257.4F4AE38D@feral.com>
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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
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