kern/57468: Quirk for Quantum LPS540S

[Walter C. Pelissero]

>Number:         57468
>Category:       kern
>Synopsis:       Quirk for Quantum LPS540S
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Wed Oct 01 10:00:35 PDT 2003
>Closed-Date:
>Last-Modified:
>Originator:     Walter C. Pelissero
>Release:        FreeBSD 4.9-PRERELEASE i386
>Organization:
>Environment:
System: FreeBSD hyde.home.loc 4.9-PRERELEASE FreeBSD 4.9-PRERELEASE #0: Sat Sep 27 18:56:22 CEST 2003 root at hyde.home.loc:/.amd_mnt/daemon/host/usr/warehouse/src/sys/compile/PCG-XG9 i386


	
>Description:
	Quantum LPS540S doesn't implement cache flushes.
>How-To-Repeat:
	Simply shutting down the system will expose the error short
	before the expected "System is halted" message.
>Fix:

	A quirk in scsi_da.c is in order.  Adding something like this
	will do:

	{	{T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
		DA_Q_NO_SYNC_CACHE },

	BTW, I suspect all the LPS line from Quantum suffers of the
	same problem.  If this is confirmed, simply changing the
	already existing quirk for the LPS525S (lines 201-207) will do:

	{
		/*
		 * Doesn't like the synchronize cache command.
		 */
		{T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS*", "*"},
		/*quirks*/ DA_Q_NO_SYNC_CACHE
	},

	Note the more general matcher for the product name.
>Release-Note:
>Audit-Trail:
>Unformatted: