--- /dev/null
+/*
+ * BSD LICENSE
+ *
+ * Copyright (C) Cavium, Inc 2017.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Cavium, Inc nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "test_perf_common.h"
+
+/* See http://dpdk.org/doc/guides/tools/testeventdev.html for test details */
+
+static inline int
+atq_nb_event_queues(struct evt_options *opt)
+{
+ /* nb_queues = number of producers */
+ return evt_nr_active_lcores(opt->plcores);
+}
+
+static inline __attribute__((always_inline)) void
+atq_mark_fwd_latency(struct rte_event *const ev)
+{
+ if (unlikely(ev->sub_event_type == 0)) {
+ struct perf_elt *const m = ev->event_ptr;
+
+ m->timestamp = rte_get_timer_cycles();
+ }
+}
+
+static inline __attribute__((always_inline)) void
+atq_fwd_event(struct rte_event *const ev, uint8_t *const sched_type_list,
+ const uint8_t nb_stages)
+{
+ ev->sub_event_type++;
+ ev->sched_type = sched_type_list[ev->sub_event_type % nb_stages];
+ ev->op = RTE_EVENT_OP_FORWARD;
+ ev->event_type = RTE_EVENT_TYPE_CPU;
+}
+
+static int
+perf_atq_worker(void *arg, const int enable_fwd_latency)
+{
+ PERF_WORKER_INIT;
+ struct rte_event ev;
+
+ while (t->done == false) {
+ uint16_t event = rte_event_dequeue_burst(dev, port, &ev, 1, 0);
+
+ if (enable_fwd_latency)
+ rte_prefetch0(ev.event_ptr);
+
+ if (!event) {
+ rte_pause();
+ continue;
+ }
+
+ if (enable_fwd_latency)
+ /* first stage in pipeline, mark ts to compute fwd latency */
+ atq_mark_fwd_latency(&ev);
+
+ /* last stage in pipeline */
+ if (unlikely((ev.sub_event_type % nb_stages) == laststage)) {
+ if (enable_fwd_latency)
+ cnt = perf_process_last_stage_latency(pool,
+ &ev, w, bufs, sz, cnt);
+ else
+ cnt = perf_process_last_stage(pool, &ev, w,
+ bufs, sz, cnt);
+ } else {
+ atq_fwd_event(&ev, sched_type_list, nb_stages);
+ while (rte_event_enqueue_burst(dev, port, &ev, 1) != 1)
+ rte_pause();
+ }
+ }
+ return 0;
+}
+
+static int
+perf_atq_worker_burst(void *arg, const int enable_fwd_latency)
+{
+ PERF_WORKER_INIT;
+ uint16_t i;
+ /* +1 to avoid prefetch out of array check */
+ struct rte_event ev[BURST_SIZE + 1];
+
+ while (t->done == false) {
+ uint16_t const nb_rx = rte_event_dequeue_burst(dev, port, ev,
+ BURST_SIZE, 0);
+
+ if (!nb_rx) {
+ rte_pause();
+ continue;
+ }
+
+ for (i = 0; i < nb_rx; i++) {
+ if (enable_fwd_latency) {
+ rte_prefetch0(ev[i+1].event_ptr);
+ /* first stage in pipeline.
+ * mark time stamp to compute fwd latency
+ */
+ atq_mark_fwd_latency(&ev[i]);
+ }
+ /* last stage in pipeline */
+ if (unlikely((ev[i].sub_event_type % nb_stages)
+ == laststage)) {
+ if (enable_fwd_latency)
+ cnt = perf_process_last_stage_latency(
+ pool, &ev[i], w, bufs, sz, cnt);
+ else
+ cnt = perf_process_last_stage(pool,
+ &ev[i], w, bufs, sz, cnt);
+
+ ev[i].op = RTE_EVENT_OP_RELEASE;
+ } else {
+ atq_fwd_event(&ev[i], sched_type_list,
+ nb_stages);
+ }
+ }
+
+ 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;
+}
+
+static int
+worker_wrapper(void *arg)
+{
+ struct worker_data *w = arg;
+ struct evt_options *opt = w->t->opt;
+
+ const bool burst = evt_has_burst_mode(w->dev_id);
+ const int fwd_latency = opt->fwd_latency;
+
+ /* allow compiler to optimize */
+ if (!burst && !fwd_latency)
+ return perf_atq_worker(arg, 0);
+ else if (!burst && fwd_latency)
+ return perf_atq_worker(arg, 1);
+ else if (burst && !fwd_latency)
+ return perf_atq_worker_burst(arg, 0);
+ else if (burst && fwd_latency)
+ return perf_atq_worker_burst(arg, 1);
+
+ rte_panic("invalid worker\n");
+}
+
+static int
+perf_atq_launch_lcores(struct evt_test *test, struct evt_options *opt)
+{
+ return perf_launch_lcores(test, opt, worker_wrapper);
+}
+
+static int
+perf_atq_eventdev_setup(struct evt_test *test, struct evt_options *opt)
+{
+ int ret;
+ uint8_t queue;
+
+ const struct rte_event_dev_config config = {
+ .nb_event_queues = atq_nb_event_queues(opt),
+ .nb_event_ports = perf_nb_event_ports(opt),
+ .nb_events_limit = 4096,
+ .nb_event_queue_flows = opt->nb_flows,
+ .nb_event_port_dequeue_depth = 128,
+ .nb_event_port_enqueue_depth = 128,
+ };
+
+ ret = rte_event_dev_configure(opt->dev_id, &config);
+ if (ret) {
+ evt_err("failed to configure eventdev %d", opt->dev_id);
+ return ret;
+ }
+
+ struct rte_event_queue_conf q_conf = {
+ .priority = RTE_EVENT_DEV_PRIORITY_NORMAL,
+ .event_queue_cfg = RTE_EVENT_QUEUE_CFG_ALL_TYPES,
+ .nb_atomic_flows = opt->nb_flows,
+ .nb_atomic_order_sequences = opt->nb_flows,
+ };
+ /* queue configurations */
+ for (queue = 0; queue < atq_nb_event_queues(opt); queue++) {
+ ret = rte_event_queue_setup(opt->dev_id, queue, &q_conf);
+ if (ret) {
+ evt_err("failed to setup queue=%d", queue);
+ return ret;
+ }
+ }
+
+ ret = perf_event_dev_port_setup(test, opt, 1 /* stride */,
+ atq_nb_event_queues(opt));
+ if (ret)
+ return ret;
+
+ ret = rte_event_dev_start(opt->dev_id);
+ if (ret) {
+ evt_err("failed to start eventdev %d", opt->dev_id);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void
+perf_atq_opt_dump(struct evt_options *opt)
+{
+ perf_opt_dump(opt, atq_nb_event_queues(opt));
+}
+
+static int
+perf_atq_opt_check(struct evt_options *opt)
+{
+ return perf_opt_check(opt, atq_nb_event_queues(opt));
+}
+
+static bool
+perf_atq_capability_check(struct evt_options *opt)
+{
+ struct rte_event_dev_info dev_info;
+
+ rte_event_dev_info_get(opt->dev_id, &dev_info);
+ if (dev_info.max_event_queues < atq_nb_event_queues(opt) ||
+ dev_info.max_event_ports < perf_nb_event_ports(opt)) {
+ evt_err("not enough eventdev queues=%d/%d or ports=%d/%d",
+ atq_nb_event_queues(opt), dev_info.max_event_queues,
+ perf_nb_event_ports(opt), dev_info.max_event_ports);
+ }
+ if (!evt_has_all_types_queue(opt->dev_id))
+ return false;
+
+ return true;
+}
+
+static const struct evt_test_ops perf_atq = {
+ .cap_check = perf_atq_capability_check,
+ .opt_check = perf_atq_opt_check,
+ .opt_dump = perf_atq_opt_dump,
+ .test_setup = perf_test_setup,
+ .mempool_setup = perf_mempool_setup,
+ .eventdev_setup = perf_atq_eventdev_setup,
+ .launch_lcores = perf_atq_launch_lcores,
+ .eventdev_destroy = perf_eventdev_destroy,
+ .mempool_destroy = perf_mempool_destroy,
+ .test_result = perf_test_result,
+ .test_destroy = perf_test_destroy,
+};
+
+EVT_TEST_REGISTER(perf_atq);
Code Review / deb_dpdk.git / blobdiff