Author: mav
Date: Sat Sep 14 09:05:03 2013
New Revision: 255546
URL: http://svnweb.freebsd.org/changeset/base/255546
Log:
MFC r253721, r253722:
Detect unsupported PREVENT ALLOW MEDIUM REMOVAL and SYNCHRONIZE CACHE(10)
to not spam devices with useless commands and logs with errors.
Modified:
stable/9/sys/cam/scsi/scsi_da.c
Directory Properties:
stable/9/sys/ (props changed)
Modified: stable/9/sys/cam/scsi/scsi_da.c
==============================================================================
--- stable/9/sys/cam/scsi/scsi_da.c Sat Sep 14 09:03:21 2013
(r255545)
+++ stable/9/sys/cam/scsi/scsi_da.c Sat Sep 14 09:05:03 2013
(r255546)
@@ -2797,6 +2797,28 @@ cmd6workaround(union ccb *ccb)
return (0);
}
+ /* Detect unsupported PREVENT ALLOW MEDIUM REMOVAL. */
+ if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
+ (*cdb == PREVENT_ALLOW) &&
+ (softc->quirks & DA_Q_NO_PREVENT) == 0) {
+ if (bootverbose)
+ xpt_print(ccb->ccb_h.path,
+ "PREVENT ALLOW MEDIUM REMOVAL not supported.\n");
+ softc->quirks |= DA_Q_NO_PREVENT;
+ return (0);
+ }
+
+ /* Detect unsupported SYNCHRONIZE CACHE(10). */
+ if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
+ (*cdb == SYNCHRONIZE_CACHE) &&
+ (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
+ if (bootverbose)
+ xpt_print(ccb->ccb_h.path,
+ "SYNCHRONIZE CACHE(10) not supported.\n");
+ softc->quirks |= DA_Q_NO_SYNC_CACHE;
+ return (0);
+ }
+
/* Translation only possible if CDB is an array and cmd is R/W6 */
if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
(*cdb != READ_6 && *cdb != WRITE_6))
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