DESC_ALIGN
error = bus_dmamem_alloc(sc->dmat, TX_DESC_SIZE, DESC_ALIGN, 0,
error = bus_dmamem_alloc(sc->dmat, RX_DESC_SIZE, DESC_ALIGN, 0,
error = bus_dmamem_alloc(sc->sc_dmat, TX_DESC_SIZE, DESC_ALIGN,
error = bus_dmamem_alloc(sc->sc_dmat, RX_DESC_SIZE, DESC_ALIGN,
val |= ((DESC_ALIGN - 16) / 8) << GMAC_DMA_CHAN0_CONTROL_DSL_SHIFT;
#define TX_DESC_SIZE (TX_DESC_COUNT * DESC_ALIGN)
#define RX_DESC_SIZE (RX_DESC_COUNT * DESC_ALIGN)