[dpdk-dev] [PATCH v2 04/15] examples/eventdev: add generic worker pipeline

[Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>]

Rename existing pipeline as generic worker pipeline.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
---

 v2 Changes:
 - Add SPDX licence tags

 examples/eventdev_pipeline_sw_pmd/Makefile         |   1 +
 examples/eventdev_pipeline_sw_pmd/main.c           | 440 +--------------------
 .../eventdev_pipeline_sw_pmd/pipeline_common.h     |  53 +++
 .../pipeline_worker_generic.c                      | 398 +++++++++++++++++++
 4 files changed, 466 insertions(+), 426 deletions(-)
 create mode 100644 examples/eventdev_pipeline_sw_pmd/pipeline_worker_generic.c

diff --git a/examples/eventdev_pipeline_sw_pmd/Makefile b/examples/eventdev_pipeline_sw_pmd/Makefile
index de4e22c88..5e30556fb 100644
--- a/examples/eventdev_pipeline_sw_pmd/Makefile
+++ b/examples/eventdev_pipeline_sw_pmd/Makefile
@@ -42,6 +42,7 @@ APP = eventdev_pipeline_sw_pmd

 # all source are stored in SRCS-y
 SRCS-y := main.c
+SRCS-y += pipeline_worker_generic.c

 CFLAGS += -O3
 CFLAGS += $(WERROR_FLAGS)
diff --git a/examples/eventdev_pipeline_sw_pmd/main.c b/examples/eventdev_pipeline_sw_pmd/main.c
index 2c919b7fa..295c8b692 100644
--- a/examples/eventdev_pipeline_sw_pmd/main.c
+++ b/examples/eventdev_pipeline_sw_pmd/main.c
@@ -68,179 +68,6 @@ eth_tx_buffer_retry(struct rte_mbuf **pkts, uint16_t unsent,
 	} while (_sent != unsent);
 }

-static int
-consumer(void)
-{
-	const uint64_t freq_khz = rte_get_timer_hz() / 1000;
-	struct rte_event packets[BATCH_SIZE];
-
-	static uint64_t received;
-	static uint64_t last_pkts;
-	static uint64_t last_time;
-	static uint64_t start_time;
-	unsigned int i, j;
-	uint8_t dev_id = cons_data.dev_id;
-	uint8_t port_id = cons_data.port_id;
-
-	uint16_t n = rte_event_dequeue_burst(dev_id, port_id,
-			packets, RTE_DIM(packets), 0);
-
-	if (n == 0) {
-		for (j = 0; j < rte_eth_dev_count(); j++)
-			rte_eth_tx_buffer_flush(j, 0, fdata->tx_buf[j]);
-		return 0;
-	}
-	if (start_time == 0)
-		last_time = start_time = rte_get_timer_cycles();
-
-	received += n;
-	for (i = 0; i < n; i++) {
-		uint8_t outport = packets[i].mbuf->port;
-		rte_eth_tx_buffer(outport, 0, fdata->tx_buf[outport],
-				packets[i].mbuf);
-
-		packets[i].op = RTE_EVENT_OP_RELEASE;
-	}
-
-	if (cons_data.release) {
-		uint16_t nb_tx;
-
-		nb_tx = rte_event_enqueue_burst(dev_id, port_id, packets, n);
-		while (nb_tx < n)
-			nb_tx += rte_event_enqueue_burst(dev_id, port_id,
-							 packets + nb_tx,
-							 n - nb_tx);
-	}
-
-	/* Print out mpps every 1<22 packets */
-	if (!cdata.quiet && received >= last_pkts + (1<<22)) {
-		const uint64_t now = rte_get_timer_cycles();
-		const uint64_t total_ms = (now - start_time) / freq_khz;
-		const uint64_t delta_ms = (now - last_time) / freq_khz;
-		uint64_t delta_pkts = received - last_pkts;
-
-		printf("# consumer RX=%"PRIu64", time %"PRIu64 "ms, "
-			"avg %.3f mpps [current %.3f mpps]\n",
-				received,
-				total_ms,
-				received / (total_ms * 1000.0),
-				delta_pkts / (delta_ms * 1000.0));
-		last_pkts = received;
-		last_time = now;
-	}
-
-	cdata.num_packets -= n;
-	if (cdata.num_packets <= 0)
-		fdata->done = 1;
-
-	return 0;
-}
-
-static inline void
-schedule_devices(unsigned int lcore_id)
-{
-	if (fdata->rx_core[lcore_id]) {
-		rte_service_run_iter_on_app_lcore(fdata->rxadptr_service_id,
-				!fdata->rx_single);
-	}
-
-	if (fdata->sched_core[lcore_id]) {
-		rte_service_run_iter_on_app_lcore(fdata->evdev_service_id,
-				!fdata->sched_single);
-		if (cdata.dump_dev_signal) {
-			rte_event_dev_dump(0, stdout);
-			cdata.dump_dev_signal = 0;
-		}
-	}
-
-	if (fdata->tx_core[lcore_id] && (fdata->tx_single ||
-	    rte_atomic32_cmpset(&(fdata->tx_lock), 0, 1))) {
-		consumer();
-		rte_atomic32_clear((rte_atomic32_t *)&(fdata->tx_lock));
-	}
-}
-
-static inline void
-work(struct rte_mbuf *m)
-{
-	struct ether_hdr *eth;
-	struct ether_addr addr;
-
-	/* change mac addresses on packet (to use mbuf data) */
-	/*
-	 * FIXME Swap mac address properly and also handle the
-	 * case for both odd and even number of stages that the
-	 * addresses end up the same at the end of the pipeline
-	 */
-	eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
-	ether_addr_copy(&eth->d_addr, &addr);
-	ether_addr_copy(&addr, &eth->d_addr);
-
-	/* do a number of cycles of work per packet */
-	volatile uint64_t start_tsc = rte_rdtsc();
-	while (rte_rdtsc() < start_tsc + cdata.worker_cycles)
-		rte_pause();
-}
-
-static int
-worker(void *arg)
-{
-	struct rte_event events[BATCH_SIZE];
-
-	struct worker_data *data = (struct worker_data *)arg;
-	uint8_t dev_id = data->dev_id;
-	uint8_t port_id = data->port_id;
-	size_t sent = 0, received = 0;
-	unsigned int lcore_id = rte_lcore_id();
-
-	while (!fdata->done) {
-		uint16_t i;
-
-		schedule_devices(lcore_id);
-
-		if (!fdata->worker_core[lcore_id]) {
-			rte_pause();
-			continue;
-		}
-
-		const uint16_t nb_rx = rte_event_dequeue_burst(dev_id, port_id,
-				events, RTE_DIM(events), 0);
-
-		if (nb_rx == 0) {
-			rte_pause();
-			continue;
-		}
-		received += nb_rx;
-
-		for (i = 0; i < nb_rx; i++) {
-
-			/* The first worker stage does classification */
-			if (events[i].queue_id == cdata.qid[0])
-				events[i].flow_id = events[i].mbuf->hash.rss
-							% cdata.num_fids;
-
-			events[i].queue_id = cdata.next_qid[events[i].queue_id];
-			events[i].op = RTE_EVENT_OP_FORWARD;
-			events[i].sched_type = cdata.queue_type;
-
-			work(events[i].mbuf);
-		}
-		uint16_t nb_tx = rte_event_enqueue_burst(dev_id, port_id,
-				events, nb_rx);
-		while (nb_tx < nb_rx && !fdata->done)
-			nb_tx += rte_event_enqueue_burst(dev_id, port_id,
-							events + nb_tx,
-							nb_rx - nb_tx);
-		sent += nb_tx;
-	}
-
-	if (!cdata.quiet)
-		printf("  worker %u thread done. RX=%zu TX=%zu\n",
-				rte_lcore_id(), received, sent);
-
-	return 0;
-}
-
 /*
  * Parse the coremask given as argument (hexadecimal string) and fill
  * the global configuration (core role and core count) with the parsed
@@ -453,70 +280,6 @@ parse_app_args(int argc, char **argv)
 	}
 }

-static inline void
-init_rx_adapter(uint16_t nb_ports)
-{
-	int i;
-	int ret;
-	uint8_t evdev_id = 0;
-	struct rte_event_dev_info dev_info;
-
-	ret = rte_event_dev_info_get(evdev_id, &dev_info);
-
-	struct rte_event_port_conf rx_p_conf = {
-		.dequeue_depth = 8,
-		.enqueue_depth = 8,
-		.new_event_threshold = 1200,
-	};
-
-	if (rx_p_conf.dequeue_depth > dev_info.max_event_port_dequeue_depth)
-		rx_p_conf.dequeue_depth = dev_info.max_event_port_dequeue_depth;
-	if (rx_p_conf.enqueue_depth > dev_info.max_event_port_enqueue_depth)
-		rx_p_conf.enqueue_depth = dev_info.max_event_port_enqueue_depth;
-
-	ret = rte_event_eth_rx_adapter_create(cdata.rx_adapter_id, evdev_id,
-			&rx_p_conf);
-	if (ret)
-		rte_exit(EXIT_FAILURE, "failed to create rx adapter[%d]",
-				cdata.rx_adapter_id);
-
-	struct rte_event_eth_rx_adapter_queue_conf queue_conf = {
-		.ev.sched_type = cdata.queue_type,
-		.ev.queue_id = cdata.qid[0],
-	};
-
-	for (i = 0; i < nb_ports; i++) {
-		uint32_t cap;
-
-		ret = rte_event_eth_rx_adapter_caps_get(evdev_id, i, &cap);
-		if (ret)
-			rte_exit(EXIT_FAILURE,
-					"failed to get event rx adapter "
-					"capabilities");
-
-		ret = rte_event_eth_rx_adapter_queue_add(cdata.rx_adapter_id, i,
-				-1, &queue_conf);
-		if (ret)
-			rte_exit(EXIT_FAILURE,
-					"Failed to add queues to Rx adapter");
-	}
-
-	ret = rte_event_eth_rx_adapter_service_id_get(cdata.rx_adapter_id,
-				&fdata->rxadptr_service_id);
-	if (ret != -ESRCH && ret != 0) {
-		rte_exit(EXIT_FAILURE,
-			"Error getting the service ID for Rx adapter\n");
-	}
-	rte_service_runstate_set(fdata->rxadptr_service_id, 1);
-	rte_service_set_runstate_mapped_check(fdata->rxadptr_service_id, 0);
-
-	ret = rte_event_eth_rx_adapter_start(cdata.rx_adapter_id);
-	if (ret)
-		rte_exit(EXIT_FAILURE, "Rx adapter[%d] start failed",
-				cdata.rx_adapter_id);
-
-}
-
 /*
  * Initializes a given port using global settings and with the RX buffers
  * coming from the mbuf_pool passed as a parameter.
@@ -621,191 +384,12 @@ init_ports(unsigned int num_ports)
 	return 0;
 }

-struct port_link {
-	uint8_t queue_id;
-	uint8_t priority;
-};
-
-static int
-setup_eventdev(struct cons_data *cons_data,
-		struct worker_data *worker_data)
+static void
+do_capability_setup(uint16_t nb_ethdev, uint8_t eventdev_id)
 {
-	const uint8_t dev_id = 0;
-	/* +1 stages is for a SINGLE_LINK TX stage */
-	const uint8_t nb_queues = cdata.num_stages + 1;
-	/* + 1 for consumer */
-	const uint8_t nb_ports = cdata.num_workers + 1;
-	struct rte_event_dev_config config = {
-			.nb_event_queues = nb_queues,
-			.nb_event_ports = nb_ports,
-			.nb_events_limit  = 4096,
-			.nb_event_queue_flows = 1024,
-			.nb_event_port_dequeue_depth = 128,
-			.nb_event_port_enqueue_depth = 128,
-	};
-	struct rte_event_port_conf wkr_p_conf = {
-			.dequeue_depth = cdata.worker_cq_depth,
-			.enqueue_depth = 64,
-			.new_event_threshold = 4096,
-	};
-	struct rte_event_queue_conf wkr_q_conf = {
-			.schedule_type = cdata.queue_type,
-			.priority = RTE_EVENT_DEV_PRIORITY_NORMAL,
-			.nb_atomic_flows = 1024,
-			.nb_atomic_order_sequences = 1024,
-	};
-	struct rte_event_port_conf tx_p_conf = {
-			.dequeue_depth = 128,
-			.enqueue_depth = 128,
-			.new_event_threshold = 4096,
-	};
-	const struct rte_event_queue_conf tx_q_conf = {
-			.priority = RTE_EVENT_DEV_PRIORITY_HIGHEST,
-			.event_queue_cfg = RTE_EVENT_QUEUE_CFG_SINGLE_LINK,
-	};
-
-	struct port_link worker_queues[MAX_NUM_STAGES];
-	uint8_t disable_implicit_release;
-	struct port_link tx_queue;
-	unsigned int i;
-
-	int ret, ndev = rte_event_dev_count();
-	if (ndev < 1) {
-		printf("%d: No Eventdev Devices Found\n", __LINE__);
-		return -1;
-	}
-
-	struct rte_event_dev_info dev_info;
-	ret = rte_event_dev_info_get(dev_id, &dev_info);
-	printf("\tEventdev %d: %s\n", dev_id, dev_info.driver_name);
-
-	disable_implicit_release = (dev_info.event_dev_cap &
-				    RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE);
-
-	wkr_p_conf.disable_implicit_release = disable_implicit_release;
-	tx_p_conf.disable_implicit_release = disable_implicit_release;
-
-	if (dev_info.max_event_port_dequeue_depth <
-			config.nb_event_port_dequeue_depth)
-		config.nb_event_port_dequeue_depth =
-				dev_info.max_event_port_dequeue_depth;
-	if (dev_info.max_event_port_enqueue_depth <
-			config.nb_event_port_enqueue_depth)
-		config.nb_event_port_enqueue_depth =
-				dev_info.max_event_port_enqueue_depth;
-
-	ret = rte_event_dev_configure(dev_id, &config);
-	if (ret < 0) {
-		printf("%d: Error configuring device\n", __LINE__);
-		return -1;
-	}
-
-	/* Q creation - one load balanced per pipeline stage*/
-	printf("  Stages:\n");
-	for (i = 0; i < cdata.num_stages; i++) {
-		if (rte_event_queue_setup(dev_id, i, &wkr_q_conf) < 0) {
-			printf("%d: error creating qid %d\n", __LINE__, i);
-			return -1;
-		}
-		cdata.qid[i] = i;
-		cdata.next_qid[i] = i+1;
-		worker_queues[i].queue_id = i;
-		if (cdata.enable_queue_priorities) {
-			/* calculate priority stepping for each stage, leaving
-			 * headroom of 1 for the SINGLE_LINK TX below
-			 */
-			const uint32_t prio_delta =
-				(RTE_EVENT_DEV_PRIORITY_LOWEST-1) /  nb_queues;
-
-			/* higher priority for queues closer to tx */
-			wkr_q_conf.priority =
-				RTE_EVENT_DEV_PRIORITY_LOWEST - prio_delta * i;
-		}
-
-		const char *type_str = "Atomic";
-		switch (wkr_q_conf.schedule_type) {
-		case RTE_SCHED_TYPE_ORDERED:
-			type_str = "Ordered";
-			break;
-		case RTE_SCHED_TYPE_PARALLEL:
-			type_str = "Parallel";
-			break;
-		}
-		printf("\tStage %d, Type %s\tPriority = %d\n", i, type_str,
-				wkr_q_conf.priority);
-	}
-	printf("\n");
-
-	/* final queue for sending to TX core */
-	if (rte_event_queue_setup(dev_id, i, &tx_q_conf) < 0) {
-		printf("%d: error creating qid %d\n", __LINE__, i);
-		return -1;
-	}
-	tx_queue.queue_id = i;
-	tx_queue.priority = RTE_EVENT_DEV_PRIORITY_HIGHEST;
-
-	if (wkr_p_conf.dequeue_depth > config.nb_event_port_dequeue_depth)
-		wkr_p_conf.dequeue_depth = config.nb_event_port_dequeue_depth;
-	if (wkr_p_conf.enqueue_depth > config.nb_event_port_enqueue_depth)
-		wkr_p_conf.enqueue_depth = config.nb_event_port_enqueue_depth;
-
-	/* set up one port per worker, linking to all stage queues */
-	for (i = 0; i < cdata.num_workers; i++) {
-		struct worker_data *w = &worker_data[i];
-		w->dev_id = dev_id;
-		if (rte_event_port_setup(dev_id, i, &wkr_p_conf) < 0) {
-			printf("Error setting up port %d\n", i);
-			return -1;
-		}
-
-		uint32_t s;
-		for (s = 0; s < cdata.num_stages; s++) {
-			if (rte_event_port_link(dev_id, i,
-						&worker_queues[s].queue_id,
-						&worker_queues[s].priority,
-						1) != 1) {
-				printf("%d: error creating link for port %d\n",
-						__LINE__, i);
-				return -1;
-			}
-		}
-		w->port_id = i;
-	}
-
-	if (tx_p_conf.dequeue_depth > config.nb_event_port_dequeue_depth)
-		tx_p_conf.dequeue_depth = config.nb_event_port_dequeue_depth;
-	if (tx_p_conf.enqueue_depth > config.nb_event_port_enqueue_depth)
-		tx_p_conf.enqueue_depth = config.nb_event_port_enqueue_depth;
-
-	/* port for consumer, linked to TX queue */
-	if (rte_event_port_setup(dev_id, i, &tx_p_conf) < 0) {
-		printf("Error setting up port %d\n", i);
-		return -1;
-	}
-	if (rte_event_port_link(dev_id, i, &tx_queue.queue_id,
-				&tx_queue.priority, 1) != 1) {
-		printf("%d: error creating link for port %d\n",
-				__LINE__, i);
-		return -1;
-	}
-	*cons_data = (struct cons_data){.dev_id = dev_id,
-					.port_id = i,
-					.release = disable_implicit_release };
-
-	ret = rte_event_dev_service_id_get(dev_id,
-				&fdata->evdev_service_id);
-	if (ret != -ESRCH && ret != 0) {
-		printf("Error getting the service ID for sw eventdev\n");
-		return -1;
-	}
-	rte_service_runstate_set(fdata->evdev_service_id, 1);
-	rte_service_set_runstate_mapped_check(fdata->evdev_service_id, 0);
-	if (rte_event_dev_start(dev_id) < 0) {
-		printf("Error starting eventdev\n");
-		return -1;
-	}
-
-	return dev_id;
+	RTE_SET_USED(nb_ethdev);
+	RTE_SET_USED(eventdev_id);
+	set_worker_generic_setup_data(&fdata->cap, 1);
 }

 static void
@@ -886,17 +470,21 @@ main(int argc, char **argv)
 	if (ndevs > 1)
 		fprintf(stderr, "Warning: More than one eventdev, using idx 0");

+
+	do_capability_setup(num_ports, 0);
+	fdata->cap.check_opt();
+
 	worker_data = rte_calloc(0, cdata.num_workers,
 			sizeof(worker_data[0]), 0);
 	if (worker_data == NULL)
 		rte_panic("rte_calloc failed\n");

-	int dev_id = setup_eventdev(&cons_data, worker_data);
+	int dev_id = fdata->cap.evdev_setup(&cons_data, worker_data);
 	if (dev_id < 0)
 		rte_exit(EXIT_FAILURE, "Error setting up eventdev\n");

 	init_ports(num_ports);
-	init_rx_adapter(num_ports);
+	fdata->cap.adptr_setup(num_ports);

 	int worker_idx = 0;
 	RTE_LCORE_FOREACH_SLAVE(lcore_id) {
@@ -929,8 +517,8 @@ main(int argc, char **argv)
 				__func__, lcore_id,
 				worker_data[worker_idx].port_id);

-		err = rte_eal_remote_launch(worker, &worker_data[worker_idx],
-					    lcore_id);
+		err = rte_eal_remote_launch(fdata->cap.worker,
+				&worker_data[worker_idx], lcore_id);
 		if (err) {
 			rte_panic("Failed to launch worker on core %d\n",
 					lcore_id);
@@ -943,7 +531,7 @@ main(int argc, char **argv)
 	lcore_id = rte_lcore_id();

 	if (core_in_use(lcore_id))
-		worker(&worker_data[worker_idx++]);
+		fdata->cap.worker(&worker_data[worker_idx++]);

 	rte_eal_mp_wait_lcore();

diff --git a/examples/eventdev_pipeline_sw_pmd/pipeline_common.h b/examples/eventdev_pipeline_sw_pmd/pipeline_common.h
index 00721ea94..379ba9d4b 100644
--- a/examples/eventdev_pipeline_sw_pmd/pipeline_common.h
+++ b/examples/eventdev_pipeline_sw_pmd/pipeline_common.h
@@ -84,7 +84,60 @@ struct config_data {
 	uint8_t rx_adapter_id;
 };

+struct port_link {
+	uint8_t queue_id;
+	uint8_t priority;
+};
+
 struct cons_data cons_data;

 struct fastpath_data *fdata;
 struct config_data cdata;
+
+static __rte_always_inline void
+work(struct rte_mbuf *m)
+{
+	struct ether_hdr *eth;
+	struct ether_addr addr;
+
+	/* change mac addresses on packet (to use mbuf data) */
+	/*
+	 * FIXME Swap mac address properly and also handle the
+	 * case for both odd and even number of stages that the
+	 * addresses end up the same at the end of the pipeline
+	 */
+	eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
+	ether_addr_copy(&eth->d_addr, &addr);
+	ether_addr_copy(&addr, &eth->d_addr);
+
+	/* do a number of cycles of work per packet */
+	volatile uint64_t start_tsc = rte_rdtsc();
+	while (rte_rdtsc() < start_tsc + cdata.worker_cycles)
+		rte_pause();
+}
+
+static __rte_always_inline void
+schedule_devices(unsigned int lcore_id)
+{
+	if (fdata->rx_core[lcore_id]) {
+		rte_service_run_iter_on_app_lcore(fdata->rxadptr_service_id,
+				!fdata->rx_single);
+	}
+
+	if (fdata->sched_core[lcore_id]) {
+		rte_service_run_iter_on_app_lcore(fdata->evdev_service_id,
+				!fdata->sched_single);
+		if (cdata.dump_dev_signal) {
+			rte_event_dev_dump(0, stdout);
+			cdata.dump_dev_signal = 0;
+		}
+	}
+
+	if (fdata->tx_core[lcore_id] && (fdata->tx_single ||
+			 rte_atomic32_cmpset(&(fdata->tx_lock), 0, 1))) {
+		fdata->cap.consumer();
+		rte_atomic32_clear((rte_atomic32_t *)&(fdata->tx_lock));
+	}
+}
+
+void set_worker_generic_setup_data(struct setup_data *caps, bool burst);
diff --git a/examples/eventdev_pipeline_sw_pmd/pipeline_worker_generic.c b/examples/eventdev_pipeline_sw_pmd/pipeline_worker_generic.c
new file mode 100644
index 000000000..d2bc6d355
--- /dev/null
+++ b/examples/eventdev_pipeline_sw_pmd/pipeline_worker_generic.c
@@ -0,0 +1,398 @@
+/*
+ * SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2016 Intel Corporation.
+ * Copyright 2017 Cavium, Inc.
+ */
+
+#include "pipeline_common.h"
+
+static int
+worker_generic_burst(void *arg)
+{
+	struct rte_event events[BATCH_SIZE];
+
+	struct worker_data *data = (struct worker_data *)arg;
+	uint8_t dev_id = data->dev_id;
+	uint8_t port_id = data->port_id;
+	size_t sent = 0, received = 0;
+	unsigned int lcore_id = rte_lcore_id();
+
+	while (!fdata->done) {
+		uint16_t i;
+
+		if (fdata->cap.scheduler)
+			fdata->cap.scheduler(lcore_id);
+
+		if (!fdata->worker_core[lcore_id]) {
+			rte_pause();
+			continue;
+		}
+
+		const uint16_t nb_rx = rte_event_dequeue_burst(dev_id, port_id,
+				events, RTE_DIM(events), 0);
+
+		if (nb_rx == 0) {
+			rte_pause();
+			continue;
+		}
+		received += nb_rx;
+
+		for (i = 0; i < nb_rx; i++) {
+
+			/* The first worker stage does classification */
+			if (events[i].queue_id == cdata.qid[0])
+				events[i].flow_id = events[i].mbuf->hash.rss
+							% cdata.num_fids;
+
+			events[i].queue_id = cdata.next_qid[events[i].queue_id];
+			events[i].op = RTE_EVENT_OP_FORWARD;
+			events[i].sched_type = cdata.queue_type;
+
+			work(events[i].mbuf);
+		}
+		uint16_t nb_tx = rte_event_enqueue_burst(dev_id, port_id,
+				events, nb_rx);
+		while (nb_tx < nb_rx && !fdata->done)
+			nb_tx += rte_event_enqueue_burst(dev_id, port_id,
+							events + nb_tx,
+							nb_rx - nb_tx);
+		sent += nb_tx;
+	}
+
+	if (!cdata.quiet)
+		printf("  worker %u thread done. RX=%zu TX=%zu\n",
+				rte_lcore_id(), received, sent);
+
+	return 0;
+}
+
+static __rte_always_inline int
+consumer_burst(void)
+{
+	const uint64_t freq_khz = rte_get_timer_hz() / 1000;
+	struct rte_event packets[BATCH_SIZE];
+
+	static uint64_t received;
+	static uint64_t last_pkts;
+	static uint64_t last_time;
+	static uint64_t start_time;
+	unsigned int i, j;
+	uint8_t dev_id = cons_data.dev_id;
+	uint8_t port_id = cons_data.port_id;
+	uint16_t nb_ports = rte_eth_dev_count();
+
+	do {
+		uint16_t n = rte_event_dequeue_burst(dev_id, port_id,
+				packets, RTE_DIM(packets), 0);
+
+		if (n == 0) {
+			for (j = 0; j < nb_ports; j++)
+				rte_eth_tx_buffer_flush(j, 0, fdata->tx_buf[j]);
+			return 0;
+		}
+		if (start_time == 0)
+			last_time = start_time = rte_get_timer_cycles();
+
+		received += n;
+		for (i = 0; i < n; i++) {
+			uint8_t outport = packets[i].mbuf->port;
+			rte_eth_tx_buffer(outport, 0, fdata->tx_buf[outport],
+					packets[i].mbuf);
+
+			packets[i].op = RTE_EVENT_OP_RELEASE;
+		}
+
+		if (cons_data.release) {
+			uint16_t nb_tx;
+
+			nb_tx = rte_event_enqueue_burst(dev_id, port_id,
+								packets, n);
+			while (nb_tx < n)
+				nb_tx += rte_event_enqueue_burst(dev_id,
+						port_id, packets + nb_tx,
+						n - nb_tx);
+		}
+
+		/* Print out mpps every 1<22 packets */
+		if (!cdata.quiet && received >= last_pkts + (1<<22)) {
+			const uint64_t now = rte_get_timer_cycles();
+			const uint64_t total_ms = (now - start_time) / freq_khz;
+			const uint64_t delta_ms = (now - last_time) / freq_khz;
+			uint64_t delta_pkts = received - last_pkts;
+
+			printf("# consumer RX=%"PRIu64", time %"PRIu64 "ms, "
+					"avg %.3f mpps [current %.3f mpps]\n",
+					received,
+					total_ms,
+					received / (total_ms * 1000.0),
+					delta_pkts / (delta_ms * 1000.0));
+			last_pkts = received;
+			last_time = now;
+		}
+
+		cdata.num_packets -= n;
+		if (cdata.num_packets <= 0)
+			fdata->done = 1;
+	/* Be stuck in this loop if single. */
+	} while (!fdata->done && fdata->tx_single);
+
+	return 0;
+}
+
+static int
+setup_eventdev_generic(struct cons_data *cons_data,
+		struct worker_data *worker_data)
+{
+	const uint8_t dev_id = 0;
+	/* +1 stages is for a SINGLE_LINK TX stage */
+	const uint8_t nb_queues = cdata.num_stages + 1;
+	/* + 1 is one port for consumer */
+	const uint8_t nb_ports = cdata.num_workers + 1;
+	struct rte_event_dev_config config = {
+			.nb_event_queues = nb_queues,
+			.nb_event_ports = nb_ports,
+			.nb_events_limit  = 4096,
+			.nb_event_queue_flows = 1024,
+			.nb_event_port_dequeue_depth = 128,
+			.nb_event_port_enqueue_depth = 128,
+	};
+	struct rte_event_port_conf wkr_p_conf = {
+			.dequeue_depth = cdata.worker_cq_depth,
+			.enqueue_depth = 64,
+			.new_event_threshold = 4096,
+	};
+	struct rte_event_queue_conf wkr_q_conf = {
+			.schedule_type = cdata.queue_type,
+			.priority = RTE_EVENT_DEV_PRIORITY_NORMAL,
+			.nb_atomic_flows = 1024,
+		.nb_atomic_order_sequences = 1024,
+	};
+	struct rte_event_port_conf tx_p_conf = {
+			.dequeue_depth = 128,
+			.enqueue_depth = 128,
+			.new_event_threshold = 4096,
+	};
+	struct rte_event_queue_conf tx_q_conf = {
+			.priority = RTE_EVENT_DEV_PRIORITY_HIGHEST,
+			.event_queue_cfg = RTE_EVENT_QUEUE_CFG_SINGLE_LINK,
+	};
+
+	struct port_link worker_queues[MAX_NUM_STAGES];
+	uint8_t disable_implicit_release;
+	struct port_link tx_queue;
+	unsigned int i;
+
+	int ret, ndev = rte_event_dev_count();
+	if (ndev < 1) {
+		printf("%d: No Eventdev Devices Found\n", __LINE__);
+		return -1;
+	}
+
+	struct rte_event_dev_info dev_info;
+	ret = rte_event_dev_info_get(dev_id, &dev_info);
+	printf("\tEventdev %d: %s\n", dev_id, dev_info.driver_name);
+
+	disable_implicit_release = (dev_info.event_dev_cap &
+			RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE);
+
+	wkr_p_conf.disable_implicit_release = disable_implicit_release;
+	tx_p_conf.disable_implicit_release = disable_implicit_release;
+
+	if (dev_info.max_event_port_dequeue_depth <
+			config.nb_event_port_dequeue_depth)
+		config.nb_event_port_dequeue_depth =
+				dev_info.max_event_port_dequeue_depth;
+	if (dev_info.max_event_port_enqueue_depth <
+			config.nb_event_port_enqueue_depth)
+		config.nb_event_port_enqueue_depth =
+				dev_info.max_event_port_enqueue_depth;
+
+	ret = rte_event_dev_configure(dev_id, &config);
+	if (ret < 0) {
+		printf("%d: Error configuring device\n", __LINE__);
+		return -1;
+	}
+
+	/* Q creation - one load balanced per pipeline stage*/
+	printf("  Stages:\n");
+	for (i = 0; i < cdata.num_stages; i++) {
+		if (rte_event_queue_setup(dev_id, i, &wkr_q_conf) < 0) {
+			printf("%d: error creating qid %d\n", __LINE__, i);
+			return -1;
+		}
+		cdata.qid[i] = i;
+		cdata.next_qid[i] = i+1;
+		worker_queues[i].queue_id = i;
+		if (cdata.enable_queue_priorities) {
+			/* calculate priority stepping for each stage, leaving
+			 * headroom of 1 for the SINGLE_LINK TX below
+			 */
+			const uint32_t prio_delta =
+				(RTE_EVENT_DEV_PRIORITY_LOWEST-1) /  nb_queues;
+
+			/* higher priority for queues closer to tx */
+			wkr_q_conf.priority =
+				RTE_EVENT_DEV_PRIORITY_LOWEST - prio_delta * i;
+		}
+
+		const char *type_str = "Atomic";
+		switch (wkr_q_conf.schedule_type) {
+		case RTE_SCHED_TYPE_ORDERED:
+			type_str = "Ordered";
+			break;
+		case RTE_SCHED_TYPE_PARALLEL:
+			type_str = "Parallel";
+			break;
+		}
+		printf("\tStage %d, Type %s\tPriority = %d\n", i, type_str,
+				wkr_q_conf.priority);
+	}
+	printf("\n");
+
+	/* final queue for sending to TX core */
+	if (rte_event_queue_setup(dev_id, i, &tx_q_conf) < 0) {
+		printf("%d: error creating qid %d\n", __LINE__, i);
+		return -1;
+	}
+	tx_queue.queue_id = i;
+	tx_queue.priority = RTE_EVENT_DEV_PRIORITY_HIGHEST;
+
+	if (wkr_p_conf.dequeue_depth > config.nb_event_port_dequeue_depth)
+		wkr_p_conf.dequeue_depth = config.nb_event_port_dequeue_depth;
+	if (wkr_p_conf.enqueue_depth > config.nb_event_port_enqueue_depth)
+		wkr_p_conf.enqueue_depth = config.nb_event_port_enqueue_depth;
+
+	/* set up one port per worker, linking to all stage queues */
+	for (i = 0; i < cdata.num_workers; i++) {
+		struct worker_data *w = &worker_data[i];
+		w->dev_id = dev_id;
+		if (rte_event_port_setup(dev_id, i, &wkr_p_conf) < 0) {
+			printf("Error setting up port %d\n", i);
+			return -1;
+		}
+
+		uint32_t s;
+		for (s = 0; s < cdata.num_stages; s++) {
+			if (rte_event_port_link(dev_id, i,
+						&worker_queues[s].queue_id,
+						&worker_queues[s].priority,
+						1) != 1) {
+				printf("%d: error creating link for port %d\n",
+						__LINE__, i);
+				return -1;
+			}
+		}
+		w->port_id = i;
+	}
+
+	if (tx_p_conf.dequeue_depth > config.nb_event_port_dequeue_depth)
+		tx_p_conf.dequeue_depth = config.nb_event_port_dequeue_depth;
+	if (tx_p_conf.enqueue_depth > config.nb_event_port_enqueue_depth)
+		tx_p_conf.enqueue_depth = config.nb_event_port_enqueue_depth;
+
+	/* port for consumer, linked to TX queue */
+	if (rte_event_port_setup(dev_id, i, &tx_p_conf) < 0) {
+		printf("Error setting up port %d\n", i);
+		return -1;
+	}
+	if (rte_event_port_link(dev_id, i, &tx_queue.queue_id,
+				&tx_queue.priority, 1) != 1) {
+		printf("%d: error creating link for port %d\n",
+				__LINE__, i);
+		return -1;
+	}
+	*cons_data = (struct cons_data){.dev_id = dev_id,
+					.port_id = i,
+					.release = disable_implicit_release };
+
+	ret = rte_event_dev_service_id_get(dev_id,
+				&fdata->evdev_service_id);
+	if (ret != -ESRCH && ret != 0) {
+		printf("Error getting the service ID for sw eventdev\n");
+		return -1;
+	}
+	rte_service_runstate_set(fdata->evdev_service_id, 1);
+	rte_service_set_runstate_mapped_check(fdata->evdev_service_id, 0);
+	if (rte_event_dev_start(dev_id) < 0) {
+		printf("Error starting eventdev\n");
+		return -1;
+	}
+
+	return dev_id;
+}
+
+static void
+init_rx_adapter(uint16_t nb_ports)
+{
+	int i;
+	int ret;
+	uint8_t evdev_id = 0;
+	struct rte_event_dev_info dev_info;
+
+	ret = rte_event_dev_info_get(evdev_id, &dev_info);
+
+	struct rte_event_port_conf rx_p_conf = {
+		.dequeue_depth = 8,
+		.enqueue_depth = 8,
+		.new_event_threshold = 1200,
+	};
+
+	if (rx_p_conf.dequeue_depth > dev_info.max_event_port_dequeue_depth)
+		rx_p_conf.dequeue_depth = dev_info.max_event_port_dequeue_depth;
+	if (rx_p_conf.enqueue_depth > dev_info.max_event_port_enqueue_depth)
+		rx_p_conf.enqueue_depth = dev_info.max_event_port_enqueue_depth;
+
+	/* Create one adapter for all the ethernet ports. */
+	ret = rte_event_eth_rx_adapter_create(cdata.rx_adapter_id, evdev_id,
+			&rx_p_conf);
+	if (ret)
+		rte_exit(EXIT_FAILURE, "failed to create rx adapter[%d]",
+				cdata.rx_adapter_id);
+
+	struct rte_event_eth_rx_adapter_queue_conf queue_conf = {
+		.ev.sched_type = cdata.queue_type,
+		.ev.queue_id = cdata.qid[0],
+	};
+
+	for (i = 0; i < nb_ports; i++) {
+		uint32_t cap;
+
+		ret = rte_event_eth_rx_adapter_caps_get(evdev_id, i, &cap);
+		if (ret)
+			rte_exit(EXIT_FAILURE,
+					"failed to get event rx adapter "
+					"capabilities");
+
+		ret = rte_event_eth_rx_adapter_queue_add(cdata.rx_adapter_id, i,
+				-1, &queue_conf);
+		if (ret)
+			rte_exit(EXIT_FAILURE,
+					"Failed to add queues to Rx adapter");
+	}
+
+	ret = rte_event_eth_rx_adapter_service_id_get(cdata.rx_adapter_id,
+				&fdata->rxadptr_service_id);
+	if (ret != -ESRCH && ret != 0) {
+		rte_exit(EXIT_FAILURE,
+			"Error getting the service ID for sw eventdev\n");
+	}
+	rte_service_runstate_set(fdata->rxadptr_service_id, 1);
+	rte_service_set_runstate_mapped_check(fdata->rxadptr_service_id, 0);
+
+	ret = rte_event_eth_rx_adapter_start(cdata.rx_adapter_id);
+	if (ret)
+		rte_exit(EXIT_FAILURE, "Rx adapter[%d] start failed",
+				cdata.rx_adapter_id);
+}
+
+void
+set_worker_generic_setup_data(struct setup_data *caps, bool burst)
+{
+	RTE_SET_USED(burst);
+	caps->consumer = consumer_burst;
+	caps->worker = worker_generic_burst;
+
+	caps->adptr_setup = init_rx_adapter;
+	caps->scheduler = schedule_devices;
+	caps->evdev_setup = setup_eventdev_generic;
+}
--
2.15.1