[SCSI] qla4xxx: use CRB Register for Request Queue in-pointer

Switching from doorbell mechanism to CRB register based

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Shyam Sundar <shyam.sundar@qlogic.com>
Signed-off-by: Ravi Anand <ravi.anand@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/qla4xxx/ql4_nx.h b/drivers/scsi/qla4xxx/ql4_nx.h
index 931ad3f..95f3060 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.h
+++ b/drivers/scsi/qla4xxx/ql4_nx.h
@@ -535,6 +535,8 @@
 #define QLA82XX_PEG_HALT_STATUS1	(QLA82XX_CAM_RAM(0xa8))
 #define QLA82XX_PEG_HALT_STATUS2	(QLA82XX_CAM_RAM(0xac))
 #define QLA82XX_PEG_ALIVE_COUNTER	(QLA82XX_CAM_RAM(0xb0))
+#define QLA82XX_CAM_RAM_DB1		(QLA82XX_CAM_RAM(0x1b0))
+#define QLA82XX_CAM_RAM_DB2		(QLA82XX_CAM_RAM(0x1b4))
 
 #define HALT_STATUS_UNRECOVERABLE	0x80000000
 #define HALT_STATUS_RECOVERABLE		0x40000000