THT_FIFO_DESC_LEN
if (tht_fifo_writable(sc, &sc->sc_txt) <= THT_FIFO_DESC_LEN)
} while (sc->sc_txt.tf_ready > THT_FIFO_DESC_LEN);
if (tht_fifo_writable(sc, &sc->sc_rxf) <= THT_FIFO_DESC_LEN)
if (sc->sc_rxf.tf_ready <= THT_FIFO_DESC_LEN)
#define THT_RXF_SGL_LEN ((THT_FIFO_DESC_LEN - \
#define THT_TXT_SGL_LEN ((THT_FIFO_DESC_LEN - \