e1000_adv_tx_desc
union e1000_adv_tx_desc *next_to_watch;
(&(((union e1000_adv_tx_desc *)((R)->desc))[i]))
min_tx_space += sizeof(union e1000_adv_tx_desc) - ETH_FCS_LEN;
union e1000_adv_tx_desc *tx_desc;
tx_ring->size = tx_ring->count * sizeof(union e1000_adv_tx_desc);
ring->count * sizeof(union e1000_adv_tx_desc));
union e1000_adv_tx_desc *eop_desc, *tx_desc;
union e1000_adv_tx_desc *tx_desc,
union e1000_adv_tx_desc *tx_desc;
union e1000_adv_tx_desc *tx_desc = IGB_TX_DESC(tx_ring, index);
union e1000_adv_tx_desc *tx_desc;
union e1000_adv_tx_desc *eop_desc = tx_buffer->next_to_watch;
union e1000_adv_tx_desc *tx_desc = NULL;
union e1000_adv_tx_desc *next_to_watch;
union e1000_adv_tx_desc tx_desc;
ew32(TDLEN(0), tx_ring->count * sizeof(union e1000_adv_tx_desc));
union e1000_adv_tx_desc *tx_desc = NULL;
tx_ring->size = tx_ring->count * sizeof(union e1000_adv_tx_desc);
union e1000_adv_tx_desc *tx_desc, *eop_desc;