RL_TX_LIST_CNT
for (i = 0; i < RL_TX_LIST_CNT; i++) {
for (i = 0; i < RL_TX_LIST_CNT; i++) {
for (i = 0; i < RL_TX_LIST_CNT; i++) {
struct mbuf *rl_tx_chain[RL_TX_LIST_CNT];
bus_dmamap_t rl_tx_dmamap[RL_TX_LIST_CNT];
#define RL_INC(x) (x = (x + 1) % RL_TX_LIST_CNT)