diff --git a/drivers/net/bnx2x/bnx2x.h b/drivers/net/bnx2x/bnx2x.h
index 333f5d6c6b81d2b850e5609c875e5e2a50b208e9..4b255e5f8f164b065f9a780f6521f80874950650 100644
--- a/drivers/net/bnx2x/bnx2x.h
+++ b/drivers/net/bnx2x/bnx2x.h
@@ -1104,7 +1104,7 @@ struct bnx2x {
 #define BP_VN(bp)			(BP_E1HVN(bp)) /*remove when approved*/
 #define BP_L_ID(bp)			(BP_E1HVN(bp) << 2)
 #define BP_FW_MB_IDX(bp)		(BP_PORT(bp) +\
-					 BP_VN(bp) * (CHIP_IS_E1x(bp) ? 2  : 1))
+	  BP_VN(bp) * ((CHIP_IS_E1x(bp) || (CHIP_MODE_IS_4_PORT(bp))) ? 2  : 1))
 
 	struct net_device	*dev;
 	struct pci_dev		*pdev;