em_rx_desc
struct em_rx_desc *desc;
void em_receive_checksum(struct em_softc *, struct em_rx_desc *,
struct em_rx_desc *desc;
em_receive_checksum(struct em_softc *sc, struct em_rx_desc *rx_desc,
if (em_dma_malloc(sc, sc->sc_rx_slots * sizeof(struct em_rx_desc),
(struct em_rx_desc *)que->rx.sc_rx_dma.dma_vaddr;
struct em_rx_desc *sc_rx_desc_ring;