[Midnightbsd-cvs] src [9357] trunk/sys/cam/scsi/scsi_all.c: Do not sent 120 TEST UNIT READY requests on generic NOT READY statuses.

[laffer1 at midnightbsd.org]

Revision: 9357
          http://svnweb.midnightbsd.org/src/?rev=9357
Author:   laffer1
Date:     2017-03-04 14:39:13 -0500 (Sat, 04 Mar 2017)
Log Message:
-----------
Do not sent 120 TEST UNIT READY requests on generic NOT READY statuses.

Some failing disks tend to return vendor-specific ASC/ASCQ codes with
NOT READY sense key.  It caused extremely long recovery attempts, repeating
these 120 TURs (it takes at least 1 minute) for every I/O request.
Instead of that use default error handling, doing just few retries.

Modified Paths:
--------------
    trunk/sys/cam/scsi/scsi_all.c

Modified: trunk/sys/cam/scsi/scsi_all.c
===================================================================
--- trunk/sys/cam/scsi/scsi_all.c	2017-03-04 19:37:29 UTC (rev 9356)
+++ trunk/sys/cam/scsi/scsi_all.c	2017-03-04 19:39:13 UTC (rev 9357)
@@ -698,10 +698,7 @@
 {
 	{ SSD_KEY_NO_SENSE, SS_NOP, "NO SENSE" },
 	{ SSD_KEY_RECOVERED_ERROR, SS_NOP|SSQ_PRINT_SENSE, "RECOVERED ERROR" },
-	{
-	  SSD_KEY_NOT_READY, SS_TUR|SSQ_MANY|SSQ_DECREMENT_COUNT|EBUSY,
-	  "NOT READY"
-	},
+	{ SSD_KEY_NOT_READY, SS_RDEF, "NOT READY" },
 	{ SSD_KEY_MEDIUM_ERROR, SS_RDEF, "MEDIUM ERROR" },
 	{ SSD_KEY_HARDWARE_ERROR, SS_RDEF, "HARDWARE FAILURE" },
 	{ SSD_KEY_ILLEGAL_REQUEST, SS_FATAL|EINVAL, "ILLEGAL REQUEST" },
@@ -876,7 +873,7 @@
 	{ SST(0x03, 0x02, SS_RDEF,
 	    "Excessive write errors") },
 	/* DTLPWROMAEBKVF */
-	{ SST(0x04, 0x00, SS_TUR | SSQ_MANY | SSQ_DECREMENT_COUNT | EIO,
+	{ SST(0x04, 0x00, SS_RDEF,
 	    "Logical unit not ready, cause not reportable") },
 	/* DTLPWROMAEBKVF */
 	{ SST(0x04, 0x01, SS_TUR | SSQ_MANY | SSQ_DECREMENT_COUNT | EBUSY,