WB_TX_LIST_CNT
for (i = 0; i < WB_TX_LIST_CNT; i++) {
ifq_init_maxlen(&ifp->if_snd, WB_TX_LIST_CNT - 1);
for (i = 0; i < WB_TX_LIST_CNT; i++) {
if (i == (WB_TX_LIST_CNT - 1)) {
struct wb_txdesc wb_tx_list[WB_TX_LIST_CNT];
struct wb_chain wb_tx_chain[WB_TX_LIST_CNT];