app/testpmd: add retry option

[dpdk.git] / app / test-pmd / txonly.c

diff --git a/app/test-pmd/txonly.c b/app/test-pmd/txonly.c
index 0ac2a08..11fd681 100644 (file)
--- a/app/test-pmd/txonly.c
+++ b/app/test-pmd/txonly.c
@@ -193,6 +193,7 @@ pkt_burst_transmit(struct fwd_stream *fs)
        uint16_t nb_tx;
        uint16_t nb_pkt;
        uint16_t vlan_tci, vlan_tci_outer;
+       uint32_t retry;
        uint64_t ol_flags = 0;
        uint8_t  i;
 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
@@ -273,6 +274,17 @@ pkt_burst_transmit(struct fwd_stream *fs)
                pkts_burst[nb_pkt] = pkt;
        }
        nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_pkt);
+       /*
+        * Retry if necessary
+        */
+       if (unlikely(nb_tx < nb_pkt) && fs->retry_enabled) {
+               retry = 0;
+               while (nb_tx < nb_pkt && 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_pkt - nb_tx);
+               }
+       }
        fs->tx_packets += nb_tx;
 
 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS