w840_rx_desc
struct w840_rx_desc *desc = np->rx_head_desc;
struct w840_rx_desc *rx_ring;
struct w840_rx_desc *rx_head_desc;
iowrite32(np->ring_dma_addr+sizeof(struct w840_rx_desc)*RX_RING_SIZE,
sizeof(struct w840_rx_desc) * RX_RING_SIZE +
sizeof(struct w840_rx_desc) * RX_RING_SIZE +