diff --git a/src/drivers/net/ipoib.c b/src/drivers/net/ipoib.c
index 4106c208c..a245cce1b 100644
--- a/src/drivers/net/ipoib.c
+++ b/src/drivers/net/ipoib.c
@@ -1027,3 +1027,21 @@ struct ib_driver ipoib_driver __ib_driver = {
 	.notify = ipoib_notify,
 	.remove = ipoib_remove,
 };
+
+/**
+ * Find IPoIB network device
+ *
+ * @v ibdev		Infiniband device
+ * @ret netdev		IPoIB network device, or NULL if not found
+ */
+struct net_device * ipoib_netdev ( struct ib_device *ibdev ) {
+	struct ipoib_device *ipoib;
+
+	/* Find matching IPoIB device */
+	list_for_each_entry ( ipoib, &ipoib_devices, list ) {
+		if ( ipoib->ibdev != ibdev )
+			continue;
+		return ipoib->netdev;
+	}
+	return NULL;
+}
diff --git a/src/include/ipxe/ipoib.h b/src/include/ipxe/ipoib.h
index b34dd32d0..065eeabb7 100644
--- a/src/include/ipxe/ipoib.h
+++ b/src/include/ipxe/ipoib.h
@@ -62,5 +62,6 @@ struct ipoib_remac {
 
 extern const char * ipoib_ntoa ( const void *ll_addr );
 extern struct net_device * alloc_ipoibdev ( size_t priv_size );
+extern struct net_device * ipoib_netdev ( struct ib_device *ibdev );
 
 #endif /* _IPXE_IPOIB_H */