Dan Williams 3af74a3c07 [SCSI] libsas: introduce scmd_dbg() to quiet false positive "timeout" messages
libsas sometimes short circuits timeouts to force commands into error
recovery.  It is misleading to log that the command timed-out in
sas_scsi_timed_out() when in fact it was just queued for error handling.
It's also redundant in the case of a true timeout as libata eh will
detect and report timeouts via it's AC_ERR_TIMEOUT facility.

Given that some environments consider "timeout" errors to be indicative
of impending device failure demote the sas_scsi_timed_out() timeout
message to be disabled by default.  This parallels ata_scsi_timed_out().

[jejb: checkpatch fix]
Reported-by: Xun Ni <xun.ni@intel.com>
Tested-by: Nelson Cheng <nelson.cheng@intel.com>
Acked-by: Lukasz Dorau <lukasz.dorau@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15 10:18:53 -07:00
..
2013-04-09 14:13:27 -04:00
2014-01-22 09:57:27 -08:00
2011-07-26 16:49:47 -07:00
2013-11-14 12:25:38 +09:00
2013-11-23 22:33:47 -08:00
2013-04-09 14:13:21 -04:00
2013-04-09 14:13:22 -04:00
2013-04-09 14:13:23 -04:00
2013-02-27 19:10:18 -08:00
2013-10-25 11:36:26 +01:00
2013-04-09 14:13:17 -04:00
2013-04-09 14:13:17 -04:00
2011-05-01 10:22:40 -05:00
2013-04-09 14:13:17 -04:00
2013-04-09 14:13:16 -04:00
2013-04-09 14:13:16 -04:00
2013-04-09 14:13:16 -04:00
2013-04-09 14:13:16 -04:00
2013-04-09 14:13:25 -04:00
2013-04-09 14:13:27 -04:00
2013-04-09 14:13:17 -04:00
2012-03-28 18:30:03 +01:00
2013-04-09 14:13:15 -04:00
2013-04-09 14:13:17 -04:00
2013-04-09 14:13:17 -04:00
2012-03-28 18:30:03 +01:00
2013-04-09 14:13:17 -04:00
2013-04-09 14:13:17 -04:00
2013-12-06 08:30:18 -08:00
2012-02-21 11:40:37 +01:00
2013-04-09 14:13:17 -04:00
2013-12-19 07:39:02 -08:00
2013-12-19 07:39:03 -08:00
2012-01-03 22:54:07 -05:00
2013-11-23 22:33:50 -08:00
2013-12-16 10:57:51 -08:00
2013-12-19 20:56:28 -08:00
2012-09-14 17:59:29 +01:00
2013-05-04 14:50:16 -04:00
2013-05-04 14:50:16 -04:00
2013-05-04 14:50:16 -04:00
2013-04-09 14:13:17 -04:00
2013-04-09 14:13:17 -04:00
2013-04-09 14:13:15 -04:00
2013-04-09 14:13:15 -04:00
2013-04-09 14:13:15 -04:00