bge_tx_bd
sizeof(struct bge_tx_bd));
struct bge_tx_bd *cur_tx = NULL;
toff = offset + (cons * sizeof (struct bge_tx_bd));
tlen = (BGE_TX_RING_CNT - cons) * sizeof (struct bge_tx_bd);
offset, tosync * sizeof (struct bge_tx_bd),
struct bge_tx_bd *f = NULL;
((ringno * sizeof(struct bge_tx_bd) * size) / 4)
struct bge_tx_bd bge_tx_ring[BGE_TX_RING_CNT];