Supports shared Rx queue.

If shared Rx queue is enabled, group received packets by stream
according to mbuf->port value and then and forward in stream basis as
before.

If shared Rx queue is not enabled, just forward in stream basis.

Signed-off-by: Xueming Li <xuemi...@nvidia.com>
---
 app/test-pmd/iofwd.c | 27 ++++++++++-----------------
 1 file changed, 10 insertions(+), 17 deletions(-)

diff --git a/app/test-pmd/iofwd.c b/app/test-pmd/iofwd.c
index 83d098adcb..316a80d65c 100644
--- a/app/test-pmd/iofwd.c
+++ b/app/test-pmd/iofwd.c
@@ -44,25 +44,11 @@
  * to packets data.
  */
 static void
-pkt_burst_io_forward(struct fwd_stream *fs)
+io_forward_stream(struct fwd_stream *fs, uint16_t nb_rx,
+                 struct rte_mbuf **pkts_burst)
 {
-       struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
-       uint16_t nb_rx;
        uint16_t nb_tx;
        uint32_t retry;
-       uint64_t start_tsc = 0;
-
-       get_start_cycles(&start_tsc);
-
-       /*
-        * Receive a burst of packets and forward them.
-        */
-       nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue,
-                       pkts_burst, nb_pkt_per_burst);
-       inc_rx_burst_stats(fs, nb_rx);
-       if (unlikely(nb_rx == 0))
-               return;
-       fs->rx_packets += nb_rx;
 
        nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue,
                        pkts_burst, nb_rx);
@@ -85,8 +71,15 @@ pkt_burst_io_forward(struct fwd_stream *fs)
                        rte_pktmbuf_free(pkts_burst[nb_tx]);
                } while (++nb_tx < nb_rx);
        }
+}
 
-       get_end_cycles(fs, start_tsc);
+/*
+ * Wrapper of real fwd engine.
+ */
+static void
+pkt_burst_io_forward(struct fwd_stream *fs)
+{
+       return do_burst_fwd(fs, io_forward_stream);
 }
 
 struct fwd_engine io_fwd_engine = {
-- 
2.25.1

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