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| author | Kurt Garloff <garloff@suse.de> | 2006-04-03 15:20:08 +0200 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-04-14 20:56:56 +0200 |
| commit | 13f7e5acc8b329080672c13f05f252ace5b79825 (patch) | |
| tree | 917c208390543eb0f926850778bf0540486e7ba3 /include/scsi | |
| parent | [SCSI] Better log messages for PQ3 devs (diff) | |
| download | linux-13f7e5acc8b329080672c13f05f252ace5b79825.tar.xz linux-13f7e5acc8b329080672c13f05f252ace5b79825.zip | |
[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')
| -rw-r--r-- | include/scsi/scsi_devinfo.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/scsi/scsi_devinfo.h b/include/scsi/scsi_devinfo.h index 174101b2069b..599966898208 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 |