Imported Upstream version 16.07-rc1

[deb_dpdk.git] / app / test-pmd / csumonly.c

diff --git a/app/test-pmd/csumonly.c b/app/test-pmd/csumonly.c
index 7e4f662..ac4bd8f 100644 (file)
--- a/app/test-pmd/csumonly.c
+++ b/app/test-pmd/csumonly.c
@@ -643,6 +643,7 @@ pkt_burst_checksum_forward(struct fwd_stream *fs)
        uint16_t i;
        uint64_t ol_flags;
        uint16_t testpmd_ol_flags;
+       uint32_t retry;
        uint32_t rx_bad_ip_csum;
        uint32_t rx_bad_l4_csum;
        struct testpmd_offload_info info;
@@ -676,6 +677,9 @@ pkt_burst_checksum_forward(struct fwd_stream *fs)
        info.tso_segsz = txp->tso_segsz;
 
        for (i = 0; i < nb_rx; i++) {
+               if (likely(i < nb_rx - 1))
+                       rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[i + 1],
+                                                      void *));
 
                ol_flags = 0;
                info.is_tunnel = 0;
@@ -845,6 +849,17 @@ pkt_burst_checksum_forward(struct fwd_stream *fs)
                }
        }
        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;
        fs->rx_bad_ip_csum += rx_bad_ip_csum;
        fs->rx_bad_l4_csum += rx_bad_l4_csum;