+ for (i = 0; i < txq->tx_rs_thresh; i++) {
+ rte_pktmbuf_free_seg(tx_entry[i].mbuf);
+ tx_entry[i].mbuf = NULL;
+ }
+
+ /* Update numbers of available descriptor due to buffer freed */
+ txq->tx_bd_ready += txq->tx_rs_thresh;
+ txq->next_to_clean += txq->tx_rs_thresh;
+ if (txq->next_to_clean >= txq->nb_tx_desc)
+ txq->next_to_clean = 0;
+
+ return 0;
+}
+
+static inline int
+hns3_tx_free_required_buffer(struct hns3_tx_queue *txq, uint16_t required_bds)
+{
+ while (required_bds > txq->tx_bd_ready) {
+ if (hns3_tx_free_useless_buffer(txq) != 0)
+ return -1;
+ }
+ return 0;