[dpdk-dev] [PATCH 1/6] app/test-eventdev: Enhancing perf-queue packet flow

[Apeksha Gupta]

The event ethernet Tx adapter provides data path for the ethernet transmit
stage. Enqueue a burst of events objects supplied on an event device.

Fixes: 2369f73329 ("app/testeventdev: add perf queue worker functions")
Cc: stable at dpdk.org

Signed-off-by: Apeksha Gupta <apeksha.gupta at nxp.com>
---
 app/test-eventdev/test_perf_common.c | 11 ++++++++
 app/test-eventdev/test_perf_common.h |  1 +
 app/test-eventdev/test_perf_queue.c  | 42 ++++++++++++++++++++--------
 3 files changed, 43 insertions(+), 11 deletions(-)

diff --git a/app/test-eventdev/test_perf_common.c b/app/test-eventdev/test_perf_common.c
index b3af4bfeca..341e16eade 100644
--- a/app/test-eventdev/test_perf_common.c
+++ b/app/test-eventdev/test_perf_common.c
@@ -687,9 +687,20 @@ perf_ethdev_setup(struct evt_test *test, struct evt_options *opt)
 		return -ENODEV;
 	}
 
+	t->internal_port = 1;
 	RTE_ETH_FOREACH_DEV(i) {
 		struct rte_eth_dev_info dev_info;
 		struct rte_eth_conf local_port_conf = port_conf;
+		uint32_t caps = 0;
+
+		ret = rte_event_eth_tx_adapter_caps_get(opt->dev_id, i, &caps);
+		if (ret != 0) {
+			evt_err("failed to get event tx adapter[%d] caps", i);
+			return ret;
+		}
+
+		if (!(caps & RTE_EVENT_ETH_TX_ADAPTER_CAP_INTERNAL_PORT))
+			t->internal_port = 0;
 
 		ret = rte_eth_dev_info_get(i, &dev_info);
 		if (ret != 0) {
diff --git a/app/test-eventdev/test_perf_common.h b/app/test-eventdev/test_perf_common.h
index d8fbee6d89..716199d8c9 100644
--- a/app/test-eventdev/test_perf_common.h
+++ b/app/test-eventdev/test_perf_common.h
@@ -48,6 +48,7 @@ struct test_perf {
 	int done;
 	uint64_t outstand_pkts;
 	uint8_t nb_workers;
+	uint8_t internal_port;
 	enum evt_test_result result;
 	uint32_t nb_flows;
 	uint64_t nb_pkts;
diff --git a/app/test-eventdev/test_perf_queue.c b/app/test-eventdev/test_perf_queue.c
index 29098580e7..f79e4a4164 100644
--- a/app/test-eventdev/test_perf_queue.c
+++ b/app/test-eventdev/test_perf_queue.c
@@ -71,10 +71,12 @@ perf_queue_worker(void *arg, const int enable_fwd_latency)
 }
 
 static int
-perf_queue_worker_burst(void *arg, const int enable_fwd_latency)
+perf_queue_worker_burst(void *arg, const int enable_fwd_latency,
+					const uint32_t flags)
 {
 	PERF_WORKER_INIT;
 	uint16_t i;
+	uint16_t nb_tx;
 	/* +1 to avoid prefetch out of array check */
 	struct rte_event ev[BURST_SIZE + 1];
 
@@ -111,12 +113,20 @@ perf_queue_worker_burst(void *arg, const int enable_fwd_latency)
 			}
 		}
 
-		uint16_t enq;
-
-		enq = rte_event_enqueue_burst(dev, port, ev, nb_rx);
-		while (enq < nb_rx) {
-			enq += rte_event_enqueue_burst(dev, port,
+		if (flags == TEST_PERF_EVENT_TX_DIRECT) {
+			nb_tx = rte_event_eth_tx_adapter_enqueue(dev, port,
+								ev, nb_rx, 0);
+			while (nb_tx < nb_rx && !t->done)
+				nb_tx += rte_event_eth_tx_adapter_enqueue(dev,
+							port, ev + nb_tx,
+							nb_rx - nb_tx, 0);
+		} else {
+			uint16_t enq;
+			enq = rte_event_enqueue_burst(dev, port, ev, nb_rx);
+			while (enq < nb_rx) {
+				enq += rte_event_enqueue_burst(dev, port,
 							ev + enq, nb_rx - enq);
+			}
 		}
 	}
 	return 0;
@@ -130,16 +140,26 @@ worker_wrapper(void *arg)
 
 	const bool burst = evt_has_burst_mode(w->dev_id);
 	const int fwd_latency = opt->fwd_latency;
-
+	const bool internal_port = w->t->internal_port;
+	uint32_t flags;
 	/* allow compiler to optimize */
 	if (!burst && !fwd_latency)
 		return perf_queue_worker(arg, 0);
 	else if (!burst && fwd_latency)
 		return perf_queue_worker(arg, 1);
-	else if (burst && !fwd_latency)
-		return perf_queue_worker_burst(arg, 0);
-	else if (burst && fwd_latency)
-		return perf_queue_worker_burst(arg, 1);
+	else if (burst && !fwd_latency && internal_port) {
+		flags = TEST_PERF_EVENT_TX_DIRECT;
+		return perf_queue_worker_burst(arg, 0, flags);
+	} else if (burst && !fwd_latency && !internal_port) {
+		flags = TEST_PERF_EVENT_TX_ENQ;
+		return perf_queue_worker_burst(arg, 1, flags);
+	} else if (burst && fwd_latency && internal_port) {
+		flags = TEST_PERF_EVENT_TX_DIRECT;
+		return perf_queue_worker_burst(arg, 0, flags);
+	} else if (burst && fwd_latency && !internal_port) {
+		flags = TEST_PERF_EVENT_TX_ENQ;
+		return perf_queue_worker_burst(arg, 1, flags);
+	}
 
 	rte_panic("invalid worker\n");
 }
-- 
2.17.1