[SCSI] qla4xxx: Added restore factory defaults support using BSG

This command will causes the firmware to update all
configurations to pre-defined factory default settings.

Signed-off-by: Harish Zunjarrao <harish.zunjarrao@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/qla4xxx/ql4_bsg.h b/drivers/scsi/qla4xxx/ql4_bsg.h
index 71df80d..84a1391 100644
--- a/drivers/scsi/qla4xxx/ql4_bsg.h
+++ b/drivers/scsi/qla4xxx/ql4_bsg.h
@@ -13,5 +13,6 @@
 #define QLISCSI_VND_GET_ACB_STATE	3
 #define QLISCSI_VND_READ_NVRAM		4
 #define QLISCSI_VND_UPDATE_NVRAM	5
+#define QLISCSI_VND_RESTORE_DEFAULTS	6
 
 #endif