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Date: Thu, 20 Apr 2000 04:12:33 -0700 (PDT)
From: mako2@din.or.jp
To: freebsd-gnats-submit@FreeBSD.org
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Subject: kern/18110: DC-390 SCSI BIOS setting no effect and IBM DORS drive tag queueing problem.
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>Number:         18110
>Category:       kern
>Synopsis:       DC-390 SCSI BIOS setting no effect and IBM DORS drive tag queueing problem.
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Apr 20 04:20:01 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     Makoto Murakami
>Release:        5.0-current
>Organization:
Private
>Environment:
FreeBSD aquarium.leaf.din.or.jp 5.0-CURRENT FreeBSD 5.0-CURRENT #1: Thu Apr 20 18:42:29 JST 2000
     mako@aquarium.leaf.din.or.jp:/usr/src/sys/compile/AKARI  i386
>Description:
I use Tekram DC-390 SCSI Host Adapter and IBM DORS-32160 Harddisk
Drive.
DORS-32160 S82C have some problem when tag queueing enable,
So tag queueing disable on SCSI BIOS.
But, I cvsuped amd.c rev 1.5 -> rev 1.9, SCSI BIOS setting is ineffectual.
Accordingly, I add fix for cam_xpt.c. Detail is shown below:
(# camcontrol negotiate -n da -u ? -T disable is no effect.)

        {
                /* Broken tagged queuing drive */
                { T_DIRECT, SIP_MEDIA_FIXED, "IBM", "DORS*", "*" },
                /*quirks*/0, /*mintags*/0, /*maxtags*/0
        },

>How-To-Repeat:
configuration: use AMD 53c974 based SCSI Host Adapter
               and connected IBM DORS-32160 S82C drive.

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:


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