+static clib_error_t *
+ethernet_set_mtu (vnet_main_t *vnm, vnet_hw_interface_t *hi, u32 mtu)
+{
+ ethernet_interface_t *ei =
+ pool_elt_at_index (ethernet_main.interfaces, hi->hw_instance);
+
+ if (ei->cb.set_mtu)
+ return ei->cb.set_mtu (vnm, hi, mtu);
+
+ return 0;
+}
+