[SCSI] qla4xxx: Add flash node mgmt support

This patch allows iscsiadm to manage iSCSI target information stored on
qla4xxx adapter flash on per host basis.

Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Manish Rangankar <manish.rangankar@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index 31fac90..5f1dbb7 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -3154,6 +3154,10 @@
 			hw->flt_region_chap =  start;
 			hw->flt_chap_size =  le32_to_cpu(region->size);
 			break;
+		case FLT_REG_ISCSI_DDB:
+			hw->flt_region_ddb =  start;
+			hw->flt_ddb_size =  le32_to_cpu(region->size);
+			break;
 		}
 	}
 	goto done;
@@ -3168,13 +3172,17 @@
 	hw->flt_region_fw       = FA_RISC_CODE_ADDR_82;
 	hw->flt_region_chap	= FA_FLASH_ISCSI_CHAP >> 2;
 	hw->flt_chap_size	= FA_FLASH_CHAP_SIZE;
+	hw->flt_region_ddb	= FA_FLASH_ISCSI_DDB >> 2;
+	hw->flt_ddb_size	= FA_FLASH_DDB_SIZE;
 
 done:
 	DEBUG2(ql4_printk(KERN_INFO, ha,
-			  "FLT[%s]: flt=0x%x fdt=0x%x boot=0x%x bootload=0x%x fw=0x%x chap=0x%x\n",
+			  "FLT[%s]: flt=0x%x fdt=0x%x boot=0x%x bootload=0x%x fw=0x%x chap=0x%x chap_size=0x%x ddb=0x%x  ddb_size=0x%x\n",
 			  loc, hw->flt_region_flt, hw->flt_region_fdt,
 			  hw->flt_region_boot, hw->flt_region_bootload,
-			  hw->flt_region_fw, hw->flt_region_chap));
+			  hw->flt_region_fw, hw->flt_region_chap,
+			  hw->flt_chap_size, hw->flt_region_ddb,
+			  hw->flt_ddb_size));
 }
 
 static void