int eth_em_rx_descriptor_done(void *rx_queue, uint16_t offset);
+int eth_em_rx_descriptor_status(void *rx_queue, uint16_t offset);
+int eth_em_tx_descriptor_status(void *tx_queue, uint16_t offset);
+
int eth_em_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
uint16_t nb_tx_desc, unsigned int socket_id,
const struct rte_eth_txconf *tx_conf);