uint16_t nb_tx_avail; /**< Number of TX descriptors available. */
uint16_t nb_tx_pages; /**< number of TX pages */
uint16_t queue_id; /**< TX queue index. */
uint16_t nb_tx_avail; /**< Number of TX descriptors available. */
uint16_t nb_tx_pages; /**< number of TX pages */
uint16_t queue_id; /**< TX queue index. */