ceph/src/seastar/dpdk/app/test-eventdev/test_order_atq.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2017 Cavium, Inc
   3  */
   4
   5 #include <stdio.h>
   6 #include <unistd.h>
   7
   8 #include "test_order_common.h"
   9
  10 /* See http://doc.dpdk.org/guides/tools/testeventdev.html for test details */
  11
  12 static inline __attribute__((always_inline)) void
  13 order_atq_process_stage_0(struct rte_event *const ev)
  14 {
  15         ev->sub_event_type = 1; /* move to stage 1 (atomic) on the same queue */
  16         ev->op = RTE_EVENT_OP_FORWARD;
  17         ev->sched_type = RTE_SCHED_TYPE_ATOMIC;
  18         ev->event_type = RTE_EVENT_TYPE_CPU;
  19 }
  20
  21 static int
  22 order_atq_worker(void *arg)
  23 {
  24         ORDER_WORKER_INIT;
  25         struct rte_event ev;
  26
  27         while (t->err == false) {
  28                 uint16_t event = rte_event_dequeue_burst(dev_id, port,
  29                                         &ev, 1, 0);
  30                 if (!event) {
  31                         if (rte_atomic64_read(outstand_pkts) <= 0)
  32                                 break;
  33                         rte_pause();
  34                         continue;
  35                 }
  36
  37                 if (ev.sub_event_type == 0) { /* stage 0 from producer */
  38                         order_atq_process_stage_0(&ev);
  39                         while (rte_event_enqueue_burst(dev_id, port, &ev, 1)
  40                                         != 1)
  41                                 rte_pause();
  42                 } else if (ev.sub_event_type == 1) { /* stage 1  */
  43                         order_process_stage_1(t, &ev, nb_flows,
  44                                         expected_flow_seq, outstand_pkts);
  45                 } else {
  46                         order_process_stage_invalid(t, &ev);
  47                 }
  48         }
  49         return 0;
  50 }
  51
  52 static int
  53 order_atq_worker_burst(void *arg)
  54 {
  55         ORDER_WORKER_INIT;
  56         struct rte_event ev[BURST_SIZE];
  57         uint16_t i;
  58
  59         while (t->err == false) {
  60                 uint16_t const nb_rx = rte_event_dequeue_burst(dev_id, port, ev,
  61                                 BURST_SIZE, 0);
  62
  63                 if (nb_rx == 0) {
  64                         if (rte_atomic64_read(outstand_pkts) <= 0)
  65                                 break;
  66                         rte_pause();
  67                         continue;
  68                 }
  69
  70                 for (i = 0; i < nb_rx; i++) {
  71                         if (ev[i].sub_event_type == 0) { /*stage 0 */
  72                                 order_atq_process_stage_0(&ev[i]);
  73                         } else if (ev[i].sub_event_type == 1) { /* stage 1 */
  74                                 order_process_stage_1(t, &ev[i], nb_flows,
  75                                         expected_flow_seq, outstand_pkts);
  76                                 ev[i].op = RTE_EVENT_OP_RELEASE;
  77                         } else {
  78                                 order_process_stage_invalid(t, &ev[i]);
  79                         }
  80                 }
  81
  82                 uint16_t enq;
  83
  84                 enq = rte_event_enqueue_burst(dev_id, port, ev, nb_rx);
  85                 while (enq < nb_rx) {
  86                         enq += rte_event_enqueue_burst(dev_id, port,
  87                                                         ev + enq, nb_rx - enq);
  88                 }
  89         }
  90         return 0;
  91 }
  92
  93 static int
  94 worker_wrapper(void *arg)
  95 {
  96         struct worker_data *w  = arg;
  97         const bool burst = evt_has_burst_mode(w->dev_id);
  98
  99         if (burst)
 100                 return order_atq_worker_burst(arg);
 101         else
 102                 return order_atq_worker(arg);
 103 }
 104
 105 static int
 106 order_atq_launch_lcores(struct evt_test *test, struct evt_options *opt)
 107 {
 108         return order_launch_lcores(test, opt, worker_wrapper);
 109 }
 110
 111 #define NB_QUEUES 1
 112 static int
 113 order_atq_eventdev_setup(struct evt_test *test, struct evt_options *opt)
 114 {
 115         int ret;
 116
 117         const uint8_t nb_workers = evt_nr_active_lcores(opt->wlcores);
 118         /* number of active worker cores + 1 producer */
 119         const uint8_t nb_ports = nb_workers + 1;
 120
 121         ret = evt_configure_eventdev(opt, NB_QUEUES, nb_ports);
 122         if (ret) {
 123                 evt_err("failed to configure eventdev %d", opt->dev_id);
 124                 return ret;
 125         }
 126
 127         /* q0 all types queue configuration */
 128         struct rte_event_queue_conf q0_conf = {
 129                         .priority = RTE_EVENT_DEV_PRIORITY_NORMAL,
 130                         .event_queue_cfg = RTE_EVENT_QUEUE_CFG_ALL_TYPES,
 131                         .nb_atomic_flows = opt->nb_flows,
 132                         .nb_atomic_order_sequences = opt->nb_flows,
 133         };
 134         ret = rte_event_queue_setup(opt->dev_id, 0, &q0_conf);
 135         if (ret) {
 136                 evt_err("failed to setup queue0 eventdev %d", opt->dev_id);
 137                 return ret;
 138         }
 139
 140         /* setup one port per worker, linking to all queues */
 141         ret = order_event_dev_port_setup(test, opt, nb_workers, NB_QUEUES);
 142         if (ret)
 143                 return ret;
 144
 145         if (!evt_has_distributed_sched(opt->dev_id)) {
 146                 uint32_t service_id;
 147                 rte_event_dev_service_id_get(opt->dev_id, &service_id);
 148                 ret = evt_service_setup(service_id);
 149                 if (ret) {
 150                         evt_err("No service lcore found to run event dev.");
 151                         return ret;
 152                 }
 153         }
 154
 155         ret = rte_event_dev_start(opt->dev_id);
 156         if (ret) {
 157                 evt_err("failed to start eventdev %d", opt->dev_id);
 158                 return ret;
 159         }
 160
 161         return 0;
 162 }
 163
 164 static void
 165 order_atq_opt_dump(struct evt_options *opt)
 166 {
 167         order_opt_dump(opt);
 168         evt_dump("nb_evdev_queues", "%d", NB_QUEUES);
 169 }
 170
 171 static bool
 172 order_atq_capability_check(struct evt_options *opt)
 173 {
 174         struct rte_event_dev_info dev_info;
 175
 176         rte_event_dev_info_get(opt->dev_id, &dev_info);
 177         if (dev_info.max_event_queues < NB_QUEUES || dev_info.max_event_ports <
 178                         order_nb_event_ports(opt)) {
 179                 evt_err("not enough eventdev queues=%d/%d or ports=%d/%d",
 180                         NB_QUEUES, dev_info.max_event_queues,
 181                         order_nb_event_ports(opt), dev_info.max_event_ports);
 182                 return false;
 183         }
 184
 185         if (!evt_has_all_types_queue(opt->dev_id))
 186                 return false;
 187
 188         return true;
 189 }
 190
 191 static const struct evt_test_ops order_atq =  {
 192         .cap_check          = order_atq_capability_check,
 193         .opt_check          = order_opt_check,
 194         .opt_dump           = order_atq_opt_dump,
 195         .test_setup         = order_test_setup,
 196         .mempool_setup      = order_mempool_setup,
 197         .eventdev_setup     = order_atq_eventdev_setup,
 198         .launch_lcores      = order_atq_launch_lcores,
 199         .eventdev_destroy   = order_eventdev_destroy,
 200         .mempool_destroy    = order_mempool_destroy,
 201         .test_result        = order_test_result,
 202         .test_destroy       = order_test_destroy,
 203 };
 204
 205 EVT_TEST_REGISTER(order_atq);