diff options
Diffstat (limited to 'app/test-pmd/macfwd.c')
| -rw-r--r-- | app/test-pmd/macfwd.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/app/test-pmd/macfwd.c b/app/test-pmd/macfwd.c index 3b7fffb7..5d1c1617 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; @@ -113,6 +114,9 @@ pkt_burst_mac_forward(struct fwd_stream *fs) if (txp->tx_ol_flags & TESTPMD_TX_OFFLOAD_INSERT_QINQ) ol_flags |= PKT_TX_QINQ_PKT; for (i = 0; i < nb_rx; i++) { + if (likely(i < nb_rx - 1)) + rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[i + 1], + void *)); mb = pkts_burst[i]; eth_hdr = rte_pktmbuf_mtod(mb, struct ether_hdr *); ether_addr_copy(&peer_eth_addrs[fs->peer_addr], @@ -126,6 +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]++; |