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authorKurt Garloff <garloff@suse.de>2006-04-03 15:20:08 +0200
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-04-14 13:56:56 -0500
commit13f7e5acc8b329080672c13f05f252ace5b79825 (patch)
tree917c208390543eb0f926850778bf0540486e7ba3 /include/scsi/scsi_devinfo.h
parent6c7154c97e20c0ea28547240dc86731c0cee1b2f (diff)
downloadop-kernel-dev-13f7e5acc8b329080672c13f05f252ace5b79825.zip
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[SCSI] BLIST_ATTACH_PQ3 flags
Some devices report a peripheral qualifier of 3 for LUN 0; with the original code, we would still try a REPORT_LUNS scan (if SCSI level is >= 3 or if we have the BLIST_REPORTLUNS2 passed in), but NOT any sequential scan. Also, the device at LUN 0 (which is not connected according to the PQ) is not registered with the OS. Unfortunately, SANs exist that are SCSI-2 and do NOT support REPORT_LUNS, but report a unknown device with PQ 3 on LUN 0. We still need to scan them, and most probably we even need BLIST_SPARSELUN (and BLIST_LARGELUN). See the bug reference for an infamous example. This is patch 3/3: 3. Implement the blacklist flag BLIST_ATTACH_PQ3 that makes the scsi scanning code register PQ3 devices and continues scanning; only sg will attach thanks to scsi_bus_match(). Signed-off-by: Kurt Garloff <garloff@suse.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'include/scsi/scsi_devinfo.h')
-rw-r--r--include/scsi/scsi_devinfo.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/scsi/scsi_devinfo.h b/include/scsi/scsi_devinfo.h
index 174101b..5999668 100644
--- a/include/scsi/scsi_devinfo.h
+++ b/include/scsi/scsi_devinfo.h
@@ -28,4 +28,5 @@
#define BLIST_NO_ULD_ATTACH 0x100000 /* device is actually for RAID config */
#define BLIST_SELECT_NO_ATN 0x200000 /* select without ATN */
#define BLIST_RETRY_HWERROR 0x400000 /* retry HARDWARE_ERROR */
+#define BLIST_ATTACH_PQ3 0x800000 /* Scan: Attach to PQ3 devices */
#endif
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