X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=app%2Ftest-pmd%2Fmacfwd.c;h=5d1c1617b38a0295e33ef46e67c4acde233a93a4;hb=f0cb66e3de4037beea44ead0a89ccee9686a1e6a;hp=07a399afdbf62c14e992c16f97dda7fcf4bc69f7;hpb=7fdb263bbbda1d3df0e80f708ea472f6706d2eda;p=dpdk.git

diff --git a/app/test-pmd/macfwd.c b/app/test-pmd/macfwd.c
index 07a399afdb..5d1c1617b3 100644
--- a/app/test-pmd/macfwd.c
+++ b/app/test-pmd/macfwd.c
@@ -81,6 +81,7 @@ pkt_burst_mac_forward(struct fwd_stream *fs)
 	struct rte_port  *txp;
 	struct rte_mbuf  *mb;
 	struct ether_hdr *eth_hdr;
+	uint32_t retry;
 	uint16_t nb_rx;
 	uint16_t nb_tx;
 	uint16_t i;
@@ -129,6 +130,18 @@ pkt_burst_mac_forward(struct fwd_stream *fs)
 		mb->vlan_tci_outer = txp->tx_vlan_id_outer;
 	}
 	nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_rx);
+	/*
+	 * Retry if necessary
+	 */
+	if (unlikely(nb_tx < nb_rx) && fs->retry_enabled) {
+		retry = 0;
+		while (nb_tx < nb_rx && retry++ < burst_tx_retry_num) {
+			rte_delay_us(burst_tx_delay_time);
+			nb_tx += rte_eth_tx_burst(fs->tx_port, fs->tx_queue,
+					&pkts_burst[nb_tx], nb_rx - nb_tx);
+		}
+	}
+
 	fs->tx_packets += nb_tx;
 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
 	fs->tx_burst_stats.pkt_burst_spread[nb_tx]++;