TX_BD_USABLE
sc->tx_ring_size = TX_BD_USABLE;
(TX_BD_USABLE - tx_bd_avail))) {
fp->eth_q_stats.tx_hw_max_queue_depth = (TX_BD_USABLE - tx_bd_avail);
#define BXE_TX_CLEANUP_THRESHOLD (TX_BD_USABLE / 8)