lm_toe_bd_chain_produce_bd
rx_bd = (struct toe_rx_bd *)lm_toe_bd_chain_produce_bd(rx_chain);
grq_bd = (struct toe_rx_grq_bd *)lm_toe_bd_chain_produce_bd(bd_chain);
tx_bd = (struct toe_tx_bd *)lm_toe_bd_chain_produce_bd(tx_chain);
tx_bd = (struct toe_tx_bd *)lm_toe_bd_chain_produce_bd(&(tcp_con->bd_chain));