+ /* Check adapter state */
+ if (unlikely(tx_ring->adapter->state != ENA_ADAPTER_STATE_RUNNING)) {
+ PMD_DRV_LOG(ALERT,
+ "Trying to xmit pkts while device is NOT running\n");
+ return 0;
+ }
+
+ for (sent_idx = 0; sent_idx < nb_pkts; sent_idx++) {
+ if (ena_xmit_mbuf(tx_ring, tx_pkts[sent_idx]))
+ break;
+ tx_ring->pkts_without_db = true;
+ rte_prefetch0(tx_pkts[ENA_IDX_ADD_MASKED(sent_idx, 4,
+ tx_ring->size_mask)]);
+ }
+
+ tx_ring->tx_stats.available_desc =
+ ena_com_free_q_entries(tx_ring->ena_com_io_sq);
+
+ /* If there are ready packets to be xmitted... */
+ if (likely(tx_ring->pkts_without_db)) {
+ /* ...let HW do its best :-) */
+ ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
+ tx_ring->tx_stats.doorbells++;
+ tx_ring->pkts_without_db = false;
+ }
+
+ ena_tx_cleanup(tx_ring);
+
+ tx_ring->tx_stats.available_desc =
+ ena_com_free_q_entries(tx_ring->ena_com_io_sq);