--- src/mkinitcpio-nfs-utils-0.3/ipconfig/netdev.c	2012-03-25 17:15:58.000000000 -0400
+++ netdev.c	2012-07-31 14:38:20.904675712 -0400
@@ -219,6 +219,9 @@
 	case ARPHRD_LOOPBACK:
 		dev->hwlen = 0;
 		break;
+        case ARPHRD_INFINIBAND:
+                dev->hwlen = 20;
+                break;
 	default:
 		return -1;
 	}