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authorMartin K. Petersen <martin.petersen@oracle.com>2013-04-24 21:19:47 -0400
committerJames Bottomley <JBottomley@Parallels.com>2013-06-24 13:00:10 -0700
commit56f2a8016e0ab54de8daaac3df4712cad0fcef2e (patch)
tree5464d103f595effb8c784d22e8f77a0243a75b41 /include/scsi
parentc3a634bf78242177fba9c85deb709e7b63ed0ef1 (diff)
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[SCSI] Workaround for disks that report bad optimal transfer length
Not all disks fill out the VPD pages correctly. Add a blacklist flag that allows us ignore the SBC-3 VPD pages for a given device. The BLIST_SKIP_VPD_PAGES flag triggers our existing skip_vpd_pages scsi_device parameter to bypass VPD scanning. Also blacklist the offending Seagate drive model. Reported-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'include/scsi')
-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 cc1f3e786ad7..447d2d7466fc 100644
--- a/include/scsi/scsi_devinfo.h
+++ b/include/scsi/scsi_devinfo.h
@@ -31,4 +31,5 @@
#define BLIST_MAX_512 0x800000 /* maximum 512 sector cdb length */
#define BLIST_ATTACH_PQ3 0x1000000 /* Scan: Attach to PQ3 devices */
#define BLIST_NO_DIF 0x2000000 /* Disable T10 PI (DIF) */
+#define BLIST_SKIP_VPD_PAGES 0x4000000 /* Ignore SBC-3 VPD pages */
#endif