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authorMartin K. Petersen <martin.petersen@oracle.com>2009-09-21 00:49:38 +0400
committerJames Bottomley <James.Bottomley@suse.de>2009-10-02 18:47:04 +0400
commit4e7392ec582cf06753b0969ca9ab959923e38493 (patch)
treeb630b857bd004612c14d4abe622c082b975e22fe /drivers/scsi/sd.h
parentb4c2554d40ceac130a8d062eaa8838ed22158c45 (diff)
downloadlinux-4e7392ec582cf06753b0969ca9ab959923e38493.tar.xz
[SCSI] sd: Support disks formatted with DIF Type 2
Disks formatted with DIF Type 2 reject READ/WRITE 6/10/12/16 commands when protection is enabled. Only the 32-byte variants are supported. Implement support for issusing 32-byte READ/WRITE and enable Type 2 drives in the protection type detection logic. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/sd.h')
-rw-r--r--drivers/scsi/sd.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h
index ce1f5f899fe3..e374804d26fb 100644
--- a/drivers/scsi/sd.h
+++ b/drivers/scsi/sd.h
@@ -37,6 +37,11 @@
*/
#define SD_LAST_BUGGY_SECTORS 8
+enum {
+ SD_EXT_CDB_SIZE = 32, /* Extended CDB size */
+ SD_MEMPOOL_SIZE = 2, /* CDB pool size */
+};
+
struct scsi_disk {
struct scsi_driver *driver; /* always &sd_template */
struct scsi_device *device;