doc: clarify usage of testpmd MAC forward mode

[dpdk.git] / drivers / net / i40e / i40e_rxtx_vec.c

diff --git a/drivers/net/i40e/i40e_rxtx_vec.c b/drivers/net/i40e/i40e_rxtx_vec.c
index 51fb282..2ce0d7d 100644 (file)
--- a/drivers/net/i40e/i40e_rxtx_vec.c
+++ b/drivers/net/i40e/i40e_rxtx_vec.c
@@ -224,7 +224,7 @@ _recv_raw_pkts_vec(struct i40e_rx_queue *rxq, struct rte_mbuf **rx_pkts,
         */
        rxdp = rxq->rx_ring + rxq->rx_tail;
 
-       _mm_prefetch((const void *)rxdp, _MM_HINT_T0);
+       rte_prefetch0(rxdp);
 
        /* See if we need to rearm the RX queue - gives the prefetch a bit
         * of time to act
@@ -692,8 +692,20 @@ i40e_rx_queue_release_mbufs_vec(struct i40e_rx_queue *rxq)
                return;
 
        /* free all mbufs that are valid in the ring */
-       for (i = rxq->rx_tail; i != rxq->rxrearm_start; i = (i + 1) & mask)
-               rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf);
+       if (rxq->rxrearm_nb == 0) {
+               for (i = 0; i < rxq->nb_rx_desc; i++) {
+                       if (rxq->sw_ring[i].mbuf != NULL)
+                               rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf);
+               }
+       } else {
+               for (i = rxq->rx_tail;
+                    i != rxq->rxrearm_start;
+                    i = (i + 1) & mask) {
+                       if (rxq->sw_ring[i].mbuf != NULL)
+                               rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf);
+               }
+       }
+
        rxq->rxrearm_nb = rxq->nb_rx_desc;
 
        /* set all entries to NULL */