app/test-eventdev/test_perf_atq.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2017 Cavium, Inc
   3  */
   4
   5 #include "test_perf_common.h"
   6
   7 /* See http://dpdk.org/doc/guides/tools/testeventdev.html for test details */
   8
   9 static inline int
  10 atq_nb_event_queues(struct evt_options *opt)
  11 {
  12         /* nb_queues = number of producers */
  13         return opt->prod_type == EVT_PROD_TYPE_ETH_RX_ADPTR ?
  14                 rte_eth_dev_count() : evt_nr_active_lcores(opt->plcores);
  15 }
  16
  17 static inline __attribute__((always_inline)) void
  18 atq_mark_fwd_latency(struct rte_event *const ev)
  19 {
  20         if (unlikely(ev->sub_event_type == 0)) {
  21                 struct perf_elt *const m = ev->event_ptr;
  22
  23                 m->timestamp = rte_get_timer_cycles();
  24         }
  25 }
  26
  27 static inline __attribute__((always_inline)) void
  28 atq_fwd_event(struct rte_event *const ev, uint8_t *const sched_type_list,
  29                 const uint8_t nb_stages)
  30 {
  31         ev->sub_event_type++;
  32         ev->sched_type = sched_type_list[ev->sub_event_type % nb_stages];
  33         ev->op = RTE_EVENT_OP_FORWARD;
  34         ev->event_type = RTE_EVENT_TYPE_CPU;
  35 }
  36
  37 static int
  38 perf_atq_worker(void *arg, const int enable_fwd_latency)
  39 {
  40         PERF_WORKER_INIT;
  41         struct rte_event ev;
  42
  43         while (t->done == false) {
  44                 uint16_t event = rte_event_dequeue_burst(dev, port, &ev, 1, 0);
  45
  46                 if (enable_fwd_latency)
  47                         rte_prefetch0(ev.event_ptr);
  48
  49                 if (!event) {
  50                         rte_pause();
  51                         continue;
  52                 }
  53
  54                 if (enable_fwd_latency)
  55                 /* first stage in pipeline, mark ts to compute fwd latency */
  56                         atq_mark_fwd_latency(&ev);
  57
  58                 /* last stage in pipeline */
  59                 if (unlikely((ev.sub_event_type % nb_stages) == laststage)) {
  60                         if (enable_fwd_latency)
  61                                 cnt = perf_process_last_stage_latency(pool,
  62                                         &ev, w, bufs, sz, cnt);
  63                         else
  64                                 cnt = perf_process_last_stage(pool, &ev, w,
  65                                          bufs, sz, cnt);
  66                 } else {
  67                         atq_fwd_event(&ev, sched_type_list, nb_stages);
  68                         while (rte_event_enqueue_burst(dev, port, &ev, 1) != 1)
  69                                 rte_pause();
  70                 }
  71         }
  72         return 0;
  73 }
  74
  75 static int
  76 perf_atq_worker_burst(void *arg, const int enable_fwd_latency)
  77 {
  78         PERF_WORKER_INIT;
  79         uint16_t i;
  80         /* +1 to avoid prefetch out of array check */
  81         struct rte_event ev[BURST_SIZE + 1];
  82
  83         while (t->done == false) {
  84                 uint16_t const nb_rx = rte_event_dequeue_burst(dev, port, ev,
  85                                 BURST_SIZE, 0);
  86
  87                 if (!nb_rx) {
  88                         rte_pause();
  89                         continue;
  90                 }
  91
  92                 for (i = 0; i < nb_rx; i++) {
  93                         if (enable_fwd_latency) {
  94                                 rte_prefetch0(ev[i+1].event_ptr);
  95                                 /* first stage in pipeline.
  96                                  * mark time stamp to compute fwd latency
  97                                  */
  98                                 atq_mark_fwd_latency(&ev[i]);
  99                         }
 100                         /* last stage in pipeline */
 101                         if (unlikely((ev[i].sub_event_type % nb_stages)
 102                                                 == laststage)) {
 103                                 if (enable_fwd_latency)
 104                                         cnt = perf_process_last_stage_latency(
 105                                                 pool, &ev[i], w, bufs, sz, cnt);
 106                                 else
 107                                         cnt = perf_process_last_stage(pool,
 108                                                 &ev[i], w, bufs, sz, cnt);
 109
 110                                 ev[i].op = RTE_EVENT_OP_RELEASE;
 111                         } else {
 112                                 atq_fwd_event(&ev[i], sched_type_list,
 113                                                 nb_stages);
 114                         }
 115                 }
 116
 117                 uint16_t enq;
 118
 119                 enq = rte_event_enqueue_burst(dev, port, ev, nb_rx);
 120                 while (enq < nb_rx) {
 121                         enq += rte_event_enqueue_burst(dev, port,
 122                                                         ev + enq, nb_rx - enq);
 123                 }
 124         }
 125         return 0;
 126 }
 127
 128 static int
 129 worker_wrapper(void *arg)
 130 {
 131         struct worker_data *w  = arg;
 132         struct evt_options *opt = w->t->opt;
 133
 134         const bool burst = evt_has_burst_mode(w->dev_id);
 135         const int fwd_latency = opt->fwd_latency;
 136
 137         /* allow compiler to optimize */
 138         if (!burst && !fwd_latency)
 139                 return perf_atq_worker(arg, 0);
 140         else if (!burst && fwd_latency)
 141                 return perf_atq_worker(arg, 1);
 142         else if (burst && !fwd_latency)
 143                 return perf_atq_worker_burst(arg, 0);
 144         else if (burst && fwd_latency)
 145                 return perf_atq_worker_burst(arg, 1);
 146
 147         rte_panic("invalid worker\n");
 148 }
 149
 150 static int
 151 perf_atq_launch_lcores(struct evt_test *test, struct evt_options *opt)
 152 {
 153         return perf_launch_lcores(test, opt, worker_wrapper);
 154 }
 155
 156 static int
 157 perf_atq_eventdev_setup(struct evt_test *test, struct evt_options *opt)
 158 {
 159         int ret;
 160         uint8_t queue;
 161         uint8_t nb_queues;
 162         uint8_t nb_ports;
 163         struct rte_event_dev_info dev_info;
 164
 165         nb_ports = evt_nr_active_lcores(opt->wlcores);
 166         nb_ports += opt->prod_type == EVT_PROD_TYPE_ETH_RX_ADPTR ? 0 :
 167                 evt_nr_active_lcores(opt->plcores);
 168
 169         nb_queues = atq_nb_event_queues(opt);
 170
 171         memset(&dev_info, 0, sizeof(struct rte_event_dev_info));
 172         ret = rte_event_dev_info_get(opt->dev_id, &dev_info);
 173         if (ret) {
 174                 evt_err("failed to get eventdev info %d", opt->dev_id);
 175                 return ret;
 176         }
 177
 178         const struct rte_event_dev_config config = {
 179                         .nb_event_queues = nb_queues,
 180                         .nb_event_ports = nb_ports,
 181                         .nb_events_limit  = dev_info.max_num_events,
 182                         .nb_event_queue_flows = opt->nb_flows,
 183                         .nb_event_port_dequeue_depth =
 184                                 dev_info.max_event_port_dequeue_depth,
 185                         .nb_event_port_enqueue_depth =
 186                                 dev_info.max_event_port_enqueue_depth,
 187         };
 188
 189         ret = rte_event_dev_configure(opt->dev_id, &config);
 190         if (ret) {
 191                 evt_err("failed to configure eventdev %d", opt->dev_id);
 192                 return ret;
 193         }
 194
 195         struct rte_event_queue_conf q_conf = {
 196                         .priority = RTE_EVENT_DEV_PRIORITY_NORMAL,
 197                         .event_queue_cfg = RTE_EVENT_QUEUE_CFG_ALL_TYPES,
 198                         .nb_atomic_flows = opt->nb_flows,
 199                         .nb_atomic_order_sequences = opt->nb_flows,
 200         };
 201         /* queue configurations */
 202         for (queue = 0; queue < nb_queues; queue++) {
 203                 ret = rte_event_queue_setup(opt->dev_id, queue, &q_conf);
 204                 if (ret) {
 205                         evt_err("failed to setup queue=%d", queue);
 206                         return ret;
 207                 }
 208         }
 209
 210         if (opt->wkr_deq_dep > dev_info.max_event_port_dequeue_depth)
 211                 opt->wkr_deq_dep = dev_info.max_event_port_dequeue_depth;
 212
 213         /* port configuration */
 214         const struct rte_event_port_conf p_conf = {
 215                         .dequeue_depth = opt->wkr_deq_dep,
 216                         .enqueue_depth = dev_info.max_event_port_dequeue_depth,
 217                         .new_event_threshold = dev_info.max_num_events,
 218         };
 219
 220         ret = perf_event_dev_port_setup(test, opt, 1 /* stride */, nb_queues,
 221                         &p_conf);
 222         if (ret)
 223                 return ret;
 224
 225         if (!evt_has_distributed_sched(opt->dev_id)) {
 226                 uint32_t service_id;
 227                 rte_event_dev_service_id_get(opt->dev_id, &service_id);
 228                 ret = evt_service_setup(service_id);
 229                 if (ret) {
 230                         evt_err("No service lcore found to run event dev.");
 231                         return ret;
 232                 }
 233         }
 234
 235         ret = rte_event_dev_start(opt->dev_id);
 236         if (ret) {
 237                 evt_err("failed to start eventdev %d", opt->dev_id);
 238                 return ret;
 239         }
 240
 241         return 0;
 242 }
 243
 244 static void
 245 perf_atq_opt_dump(struct evt_options *opt)
 246 {
 247         perf_opt_dump(opt, atq_nb_event_queues(opt));
 248 }
 249
 250 static int
 251 perf_atq_opt_check(struct evt_options *opt)
 252 {
 253         return perf_opt_check(opt, atq_nb_event_queues(opt));
 254 }
 255
 256 static bool
 257 perf_atq_capability_check(struct evt_options *opt)
 258 {
 259         struct rte_event_dev_info dev_info;
 260
 261         rte_event_dev_info_get(opt->dev_id, &dev_info);
 262         if (dev_info.max_event_queues < atq_nb_event_queues(opt) ||
 263                         dev_info.max_event_ports < perf_nb_event_ports(opt)) {
 264                 evt_err("not enough eventdev queues=%d/%d or ports=%d/%d",
 265                         atq_nb_event_queues(opt), dev_info.max_event_queues,
 266                         perf_nb_event_ports(opt), dev_info.max_event_ports);
 267         }
 268         if (!evt_has_all_types_queue(opt->dev_id))
 269                 return false;
 270
 271         return true;
 272 }
 273
 274 static const struct evt_test_ops perf_atq =  {
 275         .cap_check          = perf_atq_capability_check,
 276         .opt_check          = perf_atq_opt_check,
 277         .opt_dump           = perf_atq_opt_dump,
 278         .test_setup         = perf_test_setup,
 279         .ethdev_setup       = perf_ethdev_setup,
 280         .mempool_setup      = perf_mempool_setup,
 281         .eventdev_setup     = perf_atq_eventdev_setup,
 282         .launch_lcores      = perf_atq_launch_lcores,
 283         .eventdev_destroy   = perf_eventdev_destroy,
 284         .mempool_destroy    = perf_mempool_destroy,
 285         .ethdev_destroy     = perf_ethdev_destroy,
 286         .test_result        = perf_test_result,
 287         .test_destroy       = perf_test_destroy,
 288 };
 289
 290 EVT_TEST_REGISTER(perf_atq);