app/test-eventdev/test_perf_queue.c

   1 /*
   2  *   BSD LICENSE
   3  *
   4  *   Copyright (C) Cavium 2017.
   5  *
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above copyright
  13  *       notice, this list of conditions and the following disclaimer in
  14  *       the documentation and/or other materials provided with the
  15  *       distribution.
  16  *     * Neither the name of Cavium nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include "test_perf_common.h"
  34
  35 /* See http://dpdk.org/doc/guides/tools/testeventdev.html for test details */
  36
  37 static inline int
  38 perf_queue_nb_event_queues(struct evt_options *opt)
  39 {
  40         /* nb_queues = number of producers * number of stages */
  41         return evt_nr_active_lcores(opt->plcores) * opt->nb_stages;
  42 }
  43
  44 static int
  45 perf_queue_eventdev_setup(struct evt_test *test, struct evt_options *opt)
  46 {
  47         uint8_t queue;
  48         int nb_stages = opt->nb_stages;
  49         int ret;
  50
  51         const struct rte_event_dev_config config = {
  52                         .nb_event_queues = perf_queue_nb_event_queues(opt),
  53                         .nb_event_ports = perf_nb_event_ports(opt),
  54                         .nb_events_limit  = 4096,
  55                         .nb_event_queue_flows = opt->nb_flows,
  56                         .nb_event_port_dequeue_depth = 128,
  57                         .nb_event_port_enqueue_depth = 128,
  58         };
  59
  60         ret = rte_event_dev_configure(opt->dev_id, &config);
  61         if (ret) {
  62                 evt_err("failed to configure eventdev %d", opt->dev_id);
  63                 return ret;
  64         }
  65
  66         struct rte_event_queue_conf q_conf = {
  67                         .priority = RTE_EVENT_DEV_PRIORITY_NORMAL,
  68                         .nb_atomic_flows = opt->nb_flows,
  69                         .nb_atomic_order_sequences = opt->nb_flows,
  70         };
  71         /* queue configurations */
  72         for (queue = 0; queue < perf_queue_nb_event_queues(opt); queue++) {
  73                 q_conf.event_queue_cfg =  evt_sched_type2queue_cfg
  74                                 (opt->sched_type_list[queue % nb_stages]);
  75
  76                 if (opt->q_priority) {
  77                         uint8_t stage_pos = queue % nb_stages;
  78                         /* Configure event queues(stage 0 to stage n) with
  79                          * RTE_EVENT_DEV_PRIORITY_LOWEST to
  80                          * RTE_EVENT_DEV_PRIORITY_HIGHEST.
  81                          */
  82                         uint8_t step = RTE_EVENT_DEV_PRIORITY_LOWEST /
  83                                         (nb_stages - 1);
  84                         /* Higher prio for the queues closer to last stage */
  85                         q_conf.priority = RTE_EVENT_DEV_PRIORITY_LOWEST -
  86                                         (step * stage_pos);
  87                 }
  88                 ret = rte_event_queue_setup(opt->dev_id, queue, &q_conf);
  89                 if (ret) {
  90                         evt_err("failed to setup queue=%d", queue);
  91                         return ret;
  92                 }
  93         }
  94
  95         ret = perf_event_dev_port_setup(test, opt, nb_stages /* stride */,
  96                                         perf_queue_nb_event_queues(opt));
  97         if (ret)
  98                 return ret;
  99
 100         ret = rte_event_dev_start(opt->dev_id);
 101         if (ret) {
 102                 evt_err("failed to start eventdev %d", opt->dev_id);
 103                 return ret;
 104         }
 105
 106         return 0;
 107 }
 108
 109 static void
 110 perf_queue_opt_dump(struct evt_options *opt)
 111 {
 112         evt_dump_fwd_latency(opt);
 113         perf_opt_dump(opt, perf_queue_nb_event_queues(opt));
 114 }
 115
 116 static int
 117 perf_queue_opt_check(struct evt_options *opt)
 118 {
 119         return perf_opt_check(opt, perf_queue_nb_event_queues(opt));
 120 }
 121
 122 static bool
 123 perf_queue_capability_check(struct evt_options *opt)
 124 {
 125         struct rte_event_dev_info dev_info;
 126
 127         rte_event_dev_info_get(opt->dev_id, &dev_info);
 128         if (dev_info.max_event_queues < perf_queue_nb_event_queues(opt) ||
 129                         dev_info.max_event_ports < perf_nb_event_ports(opt)) {
 130                 evt_err("not enough eventdev queues=%d/%d or ports=%d/%d",
 131                         perf_queue_nb_event_queues(opt),
 132                         dev_info.max_event_queues,
 133                         perf_nb_event_ports(opt), dev_info.max_event_ports);
 134         }
 135
 136         return true;
 137 }
 138
 139 static const struct evt_test_ops perf_queue =  {
 140         .cap_check          = perf_queue_capability_check,
 141         .opt_check          = perf_queue_opt_check,
 142         .opt_dump           = perf_queue_opt_dump,
 143         .test_setup         = perf_test_setup,
 144         .mempool_setup      = perf_mempool_setup,
 145         .eventdev_setup     = perf_queue_eventdev_setup,
 146         .eventdev_destroy   = perf_eventdev_destroy,
 147         .mempool_destroy    = perf_mempool_destroy,
 148         .test_result        = perf_test_result,
 149         .test_destroy       = perf_test_destroy,
 150 };
 151
 152 EVT_TEST_REGISTER(perf_queue);