svn commit: r260960 - stable/9/sys/cam/scsi

[Alexander Motin]

Author: mav
Date: Tue Jan 21 00:14:06 2014
New Revision: 260960
URL: http://svnweb.freebsd.org/changeset/base/260960

Log:
  MFC r254970 (by ken):
  If a drive returns ASC/ASCQ 0x04,0x11 "Logical unit not ready,
  notify (enable spinup) required", instead of doing the normal
  retries, poll for a change in status.
  
  We will poll every half second for a minute for the status to
  change.
  
  Hitachi drives (and likely other SAS drives) return that ASC/ASCQ
  when they are waiting to spin up.  What it means is that they are
  waiting for the SAS expander to send them the SAS
  NOTIFY (ENABLE SPINUP) primitive.
  
  That primitive is the mechanism expanders/enclosures use to
  sequence drive spinup to avoid overloading power supplies.

Modified:
  stable/9/sys/cam/scsi/scsi_all.c
Directory Properties:
  stable/9/   (props changed)
  stable/9/sys/   (props changed)

Modified: stable/9/sys/cam/scsi/scsi_all.c
==============================================================================
--- stable/9/sys/cam/scsi/scsi_all.c	Mon Jan 20 23:59:32 2014	(r260959)
+++ stable/9/sys/cam/scsi/scsi_all.c	Tue Jan 21 00:14:06 2014	(r260960)
@@ -1118,7 +1118,7 @@ static struct asc_table_entry asc_table[
 	{ SST(0x04, 0x10, SS_RDEF,	/* XXX TBD */
 	    "Logical unit not ready, auxiliary memory not accessible") },
 	/* DT  WRO AEB VF */
-	{ SST(0x04, 0x11, SS_RDEF,	/* XXX TBD */
+	{ SST(0x04, 0x11, SS_TUR | SSQ_MANY | SSQ_DECREMENT_COUNT | EBUSY,
 	    "Logical unit not ready, notify (enable spinup) required") },
 	/*        M    V  */
 	{ SST(0x04, 0x12, SS_RDEF,	/* XXX TBD */