lance_rx_head
struct lance_rx_head rx_head[RX_RING_SIZE];
struct lance_rx_head *head = &(MEM->rx_head[entry]);
struct lance_rx_head rx_ring[RX_RING_SIZE];
struct lance_rx_head rx_head[RX_RING_SIZE];
struct lance_rx_head *head = &(MEM->rx_head[entry]);