IAVF_FLAGS
iavf_dbg_vc(sc, "Sleeping for op %b\n", op, IAVF_FLAGS);
iavf_dbg_vc(sc, "Error sending %b: %d\n", op, IAVF_FLAGS, error);
device_printf(sc->dev, "%b timed out\n", op, IAVF_FLAGS);
iavf_dbg_vc(sc, "Error sending %b: %d\n", op, IAVF_FLAGS, error);