[dpdk-dev] [PATCH v2 13/15] app/testpmd: support shared Rx queue for macswap fwd

[Xueming Li <xuemingl@nvidia.com>]

From: Xiaoyu Min <jackmin@nvidia.com>

Add support of shared rxq.
If shared rxq is enabled, filter packet by stream according
to mbuf->port value and then fwd it in stream basis (as before).

If shared rxq is not enabled, just fwd it as usual in stream basis.

Signed-off-by: Xiaoyu Min <jackmin@nvidia.com>
---
 app/test-pmd/macswap.c | 28 +++++++++++-----------------
 1 file changed, 11 insertions(+), 17 deletions(-)

diff --git a/app/test-pmd/macswap.c b/app/test-pmd/macswap.c
index 310bca06af..daf7170092 100644
--- a/app/test-pmd/macswap.c
+++ b/app/test-pmd/macswap.c
@@ -50,27 +50,13 @@
  * addresses of packets before forwarding them.
  */
 static void
-pkt_burst_mac_swap(struct fwd_stream *fs)
+mac_swap_stream(struct fwd_stream *fs, uint16_t nb_rx,
+		struct rte_mbuf **pkts_burst)
 {
-	struct rte_mbuf  *pkts_burst[MAX_PKT_BURST];
 	struct rte_port  *txp;
-	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;
 	txp = &ports[fs->tx_port];
 
 	do_macswap(pkts_burst, nb_rx, txp);
@@ -95,7 +81,15 @@ pkt_burst_mac_swap(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_mac_swap(struct fwd_stream *fs)
+{
+	return do_burst_fwd(fs, mac_swap_stream);
 }
 
 struct fwd_engine mac_swap_engine = {
-- 
2.25.1