examples/l2fwd-event/l2fwd_event_generic.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2019 Marvell International Ltd.
   3  */
   4
   5 #include <stdbool.h>
   6 #include <getopt.h>
   7
   8 #include <rte_cycles.h>
   9 #include <rte_ethdev.h>
  10 #include <rte_eventdev.h>
  11 #include <rte_event_eth_rx_adapter.h>
  12 #include <rte_event_eth_tx_adapter.h>
  13 #include <rte_lcore.h>
  14 #include <rte_spinlock.h>
  15
  16 #include "l2fwd_common.h"
  17 #include "l2fwd_event.h"
  18
  19 static uint32_t
  20 l2fwd_event_device_setup_generic(struct l2fwd_resources *rsrc)
  21 {
  22         struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
  23         struct rte_event_dev_config event_d_conf = {
  24                 .nb_events_limit  = 4096,
  25                 .nb_event_queue_flows = 1024,
  26                 .nb_event_port_dequeue_depth = 128,
  27                 .nb_event_port_enqueue_depth = 128
  28         };
  29         struct rte_event_dev_info dev_info;
  30         const uint8_t event_d_id = 0; /* Always use first event device only */
  31         uint32_t event_queue_cfg = 0;
  32         uint16_t ethdev_count = 0;
  33         uint16_t num_workers = 0;
  34         uint16_t port_id;
  35         int ret;
  36
  37         RTE_ETH_FOREACH_DEV(port_id) {
  38                 if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
  39                         continue;
  40                 ethdev_count++;
  41         }
  42
  43         /* Event device configurtion */
  44         rte_event_dev_info_get(event_d_id, &dev_info);
  45
  46         /* Enable implicit release */
  47         if (dev_info.event_dev_cap & RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE)
  48                 evt_rsrc->disable_implicit_release = 0;
  49
  50         if (dev_info.event_dev_cap & RTE_EVENT_DEV_CAP_QUEUE_ALL_TYPES)
  51                 event_queue_cfg |= RTE_EVENT_QUEUE_CFG_ALL_TYPES;
  52
  53         /* One queue for each ethdev port + one Tx adapter Single link queue. */
  54         event_d_conf.nb_event_queues = ethdev_count + 1;
  55         if (dev_info.max_event_queues < event_d_conf.nb_event_queues)
  56                 event_d_conf.nb_event_queues = dev_info.max_event_queues;
  57
  58         if (dev_info.max_num_events < event_d_conf.nb_events_limit)
  59                 event_d_conf.nb_events_limit = dev_info.max_num_events;
  60
  61         if (dev_info.max_event_queue_flows < event_d_conf.nb_event_queue_flows)
  62                 event_d_conf.nb_event_queue_flows =
  63                                                 dev_info.max_event_queue_flows;
  64
  65         if (dev_info.max_event_port_dequeue_depth <
  66                                 event_d_conf.nb_event_port_dequeue_depth)
  67                 event_d_conf.nb_event_port_dequeue_depth =
  68                                 dev_info.max_event_port_dequeue_depth;
  69
  70         if (dev_info.max_event_port_enqueue_depth <
  71                                 event_d_conf.nb_event_port_enqueue_depth)
  72                 event_d_conf.nb_event_port_enqueue_depth =
  73                                 dev_info.max_event_port_enqueue_depth;
  74
  75         /* Ignore Master core and service cores. */
  76         num_workers = rte_lcore_count() - 1 - rte_service_lcore_count();
  77         if (dev_info.max_event_ports < num_workers)
  78                 num_workers = dev_info.max_event_ports;
  79
  80         event_d_conf.nb_event_ports = num_workers;
  81         evt_rsrc->evp.nb_ports = num_workers;
  82         evt_rsrc->evq.nb_queues = event_d_conf.nb_event_queues;
  83
  84         evt_rsrc->has_burst = !!(dev_info.event_dev_cap &
  85                                     RTE_EVENT_DEV_CAP_BURST_MODE);
  86
  87         ret = rte_event_dev_configure(event_d_id, &event_d_conf);
  88         if (ret < 0)
  89                 rte_panic("Error in configuring event device\n");
  90
  91         evt_rsrc->event_d_id = event_d_id;
  92         return event_queue_cfg;
  93 }
  94
  95 static void
  96 l2fwd_event_port_setup_generic(struct l2fwd_resources *rsrc)
  97 {
  98         struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
  99         uint8_t event_d_id = evt_rsrc->event_d_id;
 100         struct rte_event_port_conf event_p_conf = {
 101                 .dequeue_depth = 32,
 102                 .enqueue_depth = 32,
 103                 .new_event_threshold = 4096
 104         };
 105         struct rte_event_port_conf def_p_conf;
 106         uint8_t event_p_id;
 107         int32_t ret;
 108
 109         evt_rsrc->evp.event_p_id = (uint8_t *)malloc(sizeof(uint8_t) *
 110                                         evt_rsrc->evp.nb_ports);
 111         if (!evt_rsrc->evp.event_p_id)
 112                 rte_panic("No space is available\n");
 113
 114         memset(&def_p_conf, 0, sizeof(struct rte_event_port_conf));
 115         ret = rte_event_port_default_conf_get(event_d_id, 0, &def_p_conf);
 116         if (ret < 0)
 117                 rte_panic("Error to get default configuration of event port\n");
 118
 119         if (def_p_conf.new_event_threshold < event_p_conf.new_event_threshold)
 120                 event_p_conf.new_event_threshold =
 121                         def_p_conf.new_event_threshold;
 122
 123         if (def_p_conf.dequeue_depth < event_p_conf.dequeue_depth)
 124                 event_p_conf.dequeue_depth = def_p_conf.dequeue_depth;
 125
 126         if (def_p_conf.enqueue_depth < event_p_conf.enqueue_depth)
 127                 event_p_conf.enqueue_depth = def_p_conf.enqueue_depth;
 128
 129         event_p_conf.disable_implicit_release =
 130                 evt_rsrc->disable_implicit_release;
 131         evt_rsrc->deq_depth = def_p_conf.dequeue_depth;
 132
 133         for (event_p_id = 0; event_p_id < evt_rsrc->evp.nb_ports;
 134                                                                 event_p_id++) {
 135                 ret = rte_event_port_setup(event_d_id, event_p_id,
 136                                            &event_p_conf);
 137                 if (ret < 0)
 138                         rte_panic("Error in configuring event port %d\n",
 139                                   event_p_id);
 140
 141                 ret = rte_event_port_link(event_d_id, event_p_id,
 142                                           evt_rsrc->evq.event_q_id,
 143                                           NULL,
 144                                           evt_rsrc->evq.nb_queues - 1);
 145                 if (ret != (evt_rsrc->evq.nb_queues - 1))
 146                         rte_panic("Error in linking event port %d to queues\n",
 147                                   event_p_id);
 148                 evt_rsrc->evp.event_p_id[event_p_id] = event_p_id;
 149         }
 150         /* init spinlock */
 151         rte_spinlock_init(&evt_rsrc->evp.lock);
 152
 153         evt_rsrc->def_p_conf = event_p_conf;
 154 }
 155
 156 static void
 157 l2fwd_event_queue_setup_generic(struct l2fwd_resources *rsrc,
 158                           uint32_t event_queue_cfg)
 159 {
 160         struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
 161         uint8_t event_d_id = evt_rsrc->event_d_id;
 162         struct rte_event_queue_conf event_q_conf = {
 163                 .nb_atomic_flows = 1024,
 164                 .nb_atomic_order_sequences = 1024,
 165                 .event_queue_cfg = event_queue_cfg,
 166                 .priority = RTE_EVENT_DEV_PRIORITY_NORMAL
 167         };
 168         struct rte_event_queue_conf def_q_conf;
 169         uint8_t event_q_id;
 170         int32_t ret;
 171
 172         event_q_conf.schedule_type = rsrc->sched_type;
 173         evt_rsrc->evq.event_q_id = (uint8_t *)malloc(sizeof(uint8_t) *
 174                                         evt_rsrc->evq.nb_queues);
 175         if (!evt_rsrc->evq.event_q_id)
 176                 rte_panic("Memory allocation failure\n");
 177
 178         ret = rte_event_queue_default_conf_get(event_d_id, 0, &def_q_conf);
 179         if (ret < 0)
 180                 rte_panic("Error to get default config of event queue\n");
 181
 182         if (def_q_conf.nb_atomic_flows < event_q_conf.nb_atomic_flows)
 183                 event_q_conf.nb_atomic_flows = def_q_conf.nb_atomic_flows;
 184
 185         for (event_q_id = 0; event_q_id < (evt_rsrc->evq.nb_queues - 1);
 186                                                                 event_q_id++) {
 187                 ret = rte_event_queue_setup(event_d_id, event_q_id,
 188                                             &event_q_conf);
 189                 if (ret < 0)
 190                         rte_panic("Error in configuring event queue\n");
 191                 evt_rsrc->evq.event_q_id[event_q_id] = event_q_id;
 192         }
 193
 194         event_q_conf.event_queue_cfg |= RTE_EVENT_QUEUE_CFG_SINGLE_LINK;
 195         event_q_conf.priority = RTE_EVENT_DEV_PRIORITY_HIGHEST,
 196         ret = rte_event_queue_setup(event_d_id, event_q_id, &event_q_conf);
 197         if (ret < 0)
 198                 rte_panic("Error in configuring event queue for Tx adapter\n");
 199         evt_rsrc->evq.event_q_id[event_q_id] = event_q_id;
 200 }
 201
 202 static void
 203 l2fwd_rx_tx_adapter_setup_generic(struct l2fwd_resources *rsrc)
 204 {
 205         struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
 206         struct rte_event_eth_rx_adapter_queue_conf eth_q_conf;
 207         uint8_t event_d_id = evt_rsrc->event_d_id;
 208         uint8_t rx_adptr_id = 0;
 209         uint8_t tx_adptr_id = 0;
 210         uint8_t tx_port_id = 0;
 211         uint16_t port_id;
 212         uint32_t service_id;
 213         int32_t ret, i = 0;
 214
 215         memset(&eth_q_conf, 0, sizeof(eth_q_conf));
 216         eth_q_conf.ev.priority = RTE_EVENT_DEV_PRIORITY_NORMAL;
 217
 218         /* Rx adapter setup */
 219         evt_rsrc->rx_adptr.nb_rx_adptr = 1;
 220         evt_rsrc->rx_adptr.rx_adptr = (uint8_t *)malloc(sizeof(uint8_t) *
 221                                         evt_rsrc->rx_adptr.nb_rx_adptr);
 222         if (!evt_rsrc->rx_adptr.rx_adptr) {
 223                 free(evt_rsrc->evp.event_p_id);
 224                 free(evt_rsrc->evq.event_q_id);
 225                 rte_panic("Failed to allocate memery for Rx adapter\n");
 226         }
 227
 228         ret = rte_event_eth_rx_adapter_create(rx_adptr_id, event_d_id,
 229                                               &evt_rsrc->def_p_conf);
 230         if (ret)
 231                 rte_panic("Failed to create rx adapter\n");
 232
 233         /* Configure user requested sched type */
 234         eth_q_conf.ev.sched_type = rsrc->sched_type;
 235         RTE_ETH_FOREACH_DEV(port_id) {
 236                 if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
 237                         continue;
 238                 eth_q_conf.ev.queue_id = evt_rsrc->evq.event_q_id[i];
 239                 ret = rte_event_eth_rx_adapter_queue_add(rx_adptr_id, port_id,
 240                                                          -1, &eth_q_conf);
 241                 if (ret)
 242                         rte_panic("Failed to add queues to Rx adapter\n");
 243                 if (i < evt_rsrc->evq.nb_queues)
 244                         i++;
 245         }
 246
 247         ret = rte_event_eth_rx_adapter_service_id_get(rx_adptr_id, &service_id);
 248         if (ret != -ESRCH && ret != 0)
 249                 rte_panic("Error getting the service ID for rx adptr\n");
 250
 251         rte_service_runstate_set(service_id, 1);
 252         rte_service_set_runstate_mapped_check(service_id, 0);
 253         evt_rsrc->rx_adptr.service_id = service_id;
 254
 255         ret = rte_event_eth_rx_adapter_start(rx_adptr_id);
 256         if (ret)
 257                 rte_panic("Rx adapter[%d] start Failed\n", rx_adptr_id);
 258
 259         evt_rsrc->rx_adptr.rx_adptr[0] = rx_adptr_id;
 260
 261         /* Tx adapter setup */
 262         evt_rsrc->tx_adptr.nb_tx_adptr = 1;
 263         evt_rsrc->tx_adptr.tx_adptr = (uint8_t *)malloc(sizeof(uint8_t) *
 264                                         evt_rsrc->tx_adptr.nb_tx_adptr);
 265         if (!evt_rsrc->tx_adptr.tx_adptr) {
 266                 free(evt_rsrc->rx_adptr.rx_adptr);
 267                 free(evt_rsrc->evp.event_p_id);
 268                 free(evt_rsrc->evq.event_q_id);
 269                 rte_panic("Failed to allocate memery for Rx adapter\n");
 270         }
 271
 272         ret = rte_event_eth_tx_adapter_create(tx_adptr_id, event_d_id,
 273                                               &evt_rsrc->def_p_conf);
 274         if (ret)
 275                 rte_panic("Failed to create tx adapter\n");
 276
 277         RTE_ETH_FOREACH_DEV(port_id) {
 278                 if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
 279                         continue;
 280                 ret = rte_event_eth_tx_adapter_queue_add(tx_adptr_id, port_id,
 281                                                          -1);
 282                 if (ret)
 283                         rte_panic("Failed to add queues to Tx adapter\n");
 284         }
 285
 286         ret = rte_event_eth_tx_adapter_service_id_get(tx_adptr_id, &service_id);
 287         if (ret != -ESRCH && ret != 0)
 288                 rte_panic("Failed to get Tx adapter service ID\n");
 289
 290         rte_service_runstate_set(service_id, 1);
 291         rte_service_set_runstate_mapped_check(service_id, 0);
 292         evt_rsrc->tx_adptr.service_id = service_id;
 293
 294         ret = rte_event_eth_tx_adapter_event_port_get(tx_adptr_id, &tx_port_id);
 295         if (ret)
 296                 rte_panic("Failed to get Tx adapter port id: %d\n", ret);
 297
 298         ret = rte_event_port_link(event_d_id, tx_port_id,
 299                                   &evt_rsrc->evq.event_q_id[
 300                                         evt_rsrc->evq.nb_queues - 1],
 301                                   NULL, 1);
 302         if (ret != 1)
 303                 rte_panic("Unable to link Tx adapter port to Tx queue:err=%d\n",
 304                          ret);
 305
 306         ret = rte_event_eth_tx_adapter_start(tx_adptr_id);
 307         if (ret)
 308                 rte_panic("Tx adapter[%d] start Failed\n", tx_adptr_id);
 309
 310         evt_rsrc->tx_adptr.tx_adptr[0] = tx_adptr_id;
 311 }
 312
 313 void
 314 l2fwd_event_set_generic_ops(struct event_setup_ops *ops)
 315 {
 316         ops->event_device_setup = l2fwd_event_device_setup_generic;
 317         ops->event_queue_setup = l2fwd_event_queue_setup_generic;
 318         ops->event_port_setup = l2fwd_event_port_setup_generic;
 319         ops->adapter_setup = l2fwd_rx_tx_adapter_setup_generic;
 320 }