Date: Mon, 11 Sep 2006 09:44:49 GMT From: Shusuke SHINOMIYA <shino@fornext.org> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/103130: reenable tagged queueing of VMware virtual SCSI disk. Message-ID: <200609110944.k8B9inEZ081348@www.freebsd.org> Resent-Message-ID: <200609110950.k8B9oRtC051892@freefall.freebsd.org>
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>Number: 103130
>Category: kern
>Synopsis: reenable tagged queueing of VMware virtual SCSI disk.
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: update
>Submitter-Id: current-users
>Arrival-Date: Mon Sep 11 09:50:26 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator: Shusuke SHINOMIYA
>Release: FreeBSD 5.5-STABLE
>Organization:
Tokyo Institute of Technology
>Environment:
FreeBSD attacker.noc.titech.ac.jp 5.5-STABLE FreeBSD 5.5-STABLE #16: Fri Sep 8 17:45:56 JST 2006 root@attacker.noc.titech.ac.jp:/usr/obj/usr/src/sys/VMWARE_FREEBSD5 i386
>Description:
Tagged queueing feature of a VMware virtual disk connected with SCSI
has been disabled since the cam quirk was added at Jun 26 05:42:26 2006 in RELENG_5 branch.
# this quirk is needed to find the drive by SCSI HA.
>How-To-Repeat:
boot up a FreeBSD on a VMware Virtual Machine of which hard drive is connected with SCSI.
Tagged queueing feature is not available as shown the following.
da0 at mpt0 bus 0 target 0 lun 0
da0: <VMware Virtual disk 1.0> Fixed Direct Access SCSI-2 device
da0: 80.000MB/s transfers (40.000MHz, offset 127, 16bit)
da0: 8192MB (16777216 512 byte sectors: 255H 63S/T 1044C)
>Fix:
apply following patch to sys/cam/cam_xpt.c. this patch is for RELENG_5.
--- sys/cam/cam_xpt.c.orig Fri Sep 8 18:10:14 2006
+++ sys/cam/cam_xpt.c Fri Sep 8 17:43:57 2006
@@ -359,7 +359,7 @@
{
/* Does not support other than LUN 0 */
{ T_DIRECT, SIP_MEDIA_FIXED, "VMware*", "*", "*" },
- CAM_QUIRK_NOLUNS, /*mintags*/0, /*maxtags*/0
+ CAM_QUIRK_NOLUNS, /*mintags*/2, /*maxtags*/255
},
>Release-Note:
>Audit-Trail:
>Unformatted:
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