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         /* Configures event device as per below configuration. 8< */
  24         struct rte_event_dev_config event_d_conf = {
  25                 .nb_events_limit  = 4096,
  26                 .nb_event_queue_flows = 1024,
  27                 .nb_event_port_dequeue_depth = 128,
  28                 .nb_event_port_enqueue_depth = 128
  29         };
  30         /* >8 End of configuration event device as per below configuration. */
  31         struct rte_event_dev_info dev_info;
  32         const uint8_t event_d_id = 0; /* Always use first event device only */
  33         uint32_t event_queue_cfg = 0;
  34         uint16_t ethdev_count = 0;
  35         uint16_t num_workers = 0;
  36         uint16_t port_id;
  37         int ret;
  38
  39         RTE_ETH_FOREACH_DEV(port_id) {
  40                 if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
  41                         continue;
  42                 ethdev_count++;
  43         }
  44
  45         /* Event device configurtion */
  46         rte_event_dev_info_get(event_d_id, &dev_info);
  47
  48         /* Enable implicit release */
  49         if (dev_info.event_dev_cap & RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE)
  50                 evt_rsrc->disable_implicit_release = 0;
  51
  52         if (dev_info.event_dev_cap & RTE_EVENT_DEV_CAP_QUEUE_ALL_TYPES)
  53                 event_queue_cfg |= RTE_EVENT_QUEUE_CFG_ALL_TYPES;
  54
  55         /* One queue for each ethdev port + one Tx adapter Single link queue. */
  56         event_d_conf.nb_event_queues = ethdev_count + 1;
  57         if (dev_info.max_event_queues < event_d_conf.nb_event_queues)
  58                 event_d_conf.nb_event_queues = dev_info.max_event_queues;
  59
  60         if (dev_info.max_num_events < event_d_conf.nb_events_limit)
  61                 event_d_conf.nb_events_limit = dev_info.max_num_events;
  62
  63         if (dev_info.max_event_queue_flows < event_d_conf.nb_event_queue_flows)
  64                 event_d_conf.nb_event_queue_flows =
  65                                                 dev_info.max_event_queue_flows;
  66
  67         if (dev_info.max_event_port_dequeue_depth <
  68                                 event_d_conf.nb_event_port_dequeue_depth)
  69                 event_d_conf.nb_event_port_dequeue_depth =
  70                                 dev_info.max_event_port_dequeue_depth;
  71
  72         if (dev_info.max_event_port_enqueue_depth <
  73                                 event_d_conf.nb_event_port_enqueue_depth)
  74                 event_d_conf.nb_event_port_enqueue_depth =
  75                                 dev_info.max_event_port_enqueue_depth;
  76
  77         /* Ignore Main core and service cores. */
  78         num_workers = rte_lcore_count() - 1 - rte_service_lcore_count();
  79         if (dev_info.max_event_ports < num_workers)
  80                 num_workers = dev_info.max_event_ports;
  81
  82         event_d_conf.nb_event_ports = num_workers;
  83         evt_rsrc->evp.nb_ports = num_workers;
  84         evt_rsrc->evq.nb_queues = event_d_conf.nb_event_queues;
  85
  86         evt_rsrc->has_burst = !!(dev_info.event_dev_cap &
  87                                     RTE_EVENT_DEV_CAP_BURST_MODE);
  88
  89         ret = rte_event_dev_configure(event_d_id, &event_d_conf);
  90         if (ret < 0)
  91                 rte_panic("Error in configuring event device\n");
  92
  93         evt_rsrc->event_d_id = event_d_id;
  94         return event_queue_cfg;
  95 }
  96
  97 static void
  98 l2fwd_event_port_setup_generic(struct l2fwd_resources *rsrc)
  99 {
 100         struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
 101         uint8_t event_d_id = evt_rsrc->event_d_id;
 102         /* Event port initialization. 8< */
 103         struct rte_event_port_conf event_p_conf = {
 104                 .dequeue_depth = 32,
 105                 .enqueue_depth = 32,
 106                 .new_event_threshold = 4096
 107         };
 108         struct rte_event_port_conf def_p_conf;
 109         uint8_t event_p_id;
 110         int32_t ret;
 111
 112         evt_rsrc->evp.event_p_id = (uint8_t *)malloc(sizeof(uint8_t) *
 113                                         evt_rsrc->evp.nb_ports);
 114         if (!evt_rsrc->evp.event_p_id)
 115                 rte_panic("No space is available\n");
 116
 117         memset(&def_p_conf, 0, sizeof(struct rte_event_port_conf));
 118         ret = rte_event_port_default_conf_get(event_d_id, 0, &def_p_conf);
 119         if (ret < 0)
 120                 rte_panic("Error to get default configuration of event port\n");
 121
 122         if (def_p_conf.new_event_threshold < event_p_conf.new_event_threshold)
 123                 event_p_conf.new_event_threshold =
 124                         def_p_conf.new_event_threshold;
 125
 126         if (def_p_conf.dequeue_depth < event_p_conf.dequeue_depth)
 127                 event_p_conf.dequeue_depth = def_p_conf.dequeue_depth;
 128
 129         if (def_p_conf.enqueue_depth < event_p_conf.enqueue_depth)
 130                 event_p_conf.enqueue_depth = def_p_conf.enqueue_depth;
 131
 132         event_p_conf.event_port_cfg = 0;
 133         if (evt_rsrc->disable_implicit_release)
 134                 event_p_conf.event_port_cfg |=
 135                         RTE_EVENT_PORT_CFG_DISABLE_IMPL_REL;
 136
 137         evt_rsrc->deq_depth = def_p_conf.dequeue_depth;
 138
 139         for (event_p_id = 0; event_p_id < evt_rsrc->evp.nb_ports;
 140                                                                 event_p_id++) {
 141                 ret = rte_event_port_setup(event_d_id, event_p_id,
 142                                            &event_p_conf);
 143                 if (ret < 0)
 144                         rte_panic("Error in configuring event port %d\n",
 145                                   event_p_id);
 146
 147                 ret = rte_event_port_link(event_d_id, event_p_id,
 148                                           evt_rsrc->evq.event_q_id,
 149                                           NULL,
 150                                           evt_rsrc->evq.nb_queues - 1);
 151                 if (ret != (evt_rsrc->evq.nb_queues - 1))
 152                         rte_panic("Error in linking event port %d to queues\n",
 153                                   event_p_id);
 154                 evt_rsrc->evp.event_p_id[event_p_id] = event_p_id;
 155                 /* >8 End of event port initialization. */
 156         }
 157         /* init spinlock */
 158         rte_spinlock_init(&evt_rsrc->evp.lock);
 159
 160         evt_rsrc->def_p_conf = event_p_conf;
 161 }
 162
 163 static void
 164 l2fwd_event_queue_setup_generic(struct l2fwd_resources *rsrc,
 165                           uint32_t event_queue_cfg)
 166 {
 167         struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
 168         uint8_t event_d_id = evt_rsrc->event_d_id;
 169         /* Event queue initialization. 8< */
 170         struct rte_event_queue_conf event_q_conf = {
 171                 .nb_atomic_flows = 1024,
 172                 .nb_atomic_order_sequences = 1024,
 173                 .event_queue_cfg = event_queue_cfg,
 174                 .priority = RTE_EVENT_DEV_PRIORITY_NORMAL
 175         };
 176         struct rte_event_queue_conf def_q_conf;
 177         uint8_t event_q_id;
 178         int32_t ret;
 179
 180         event_q_conf.schedule_type = rsrc->sched_type;
 181         evt_rsrc->evq.event_q_id = (uint8_t *)malloc(sizeof(uint8_t) *
 182                                         evt_rsrc->evq.nb_queues);
 183         if (!evt_rsrc->evq.event_q_id)
 184                 rte_panic("Memory allocation failure\n");
 185
 186         ret = rte_event_queue_default_conf_get(event_d_id, 0, &def_q_conf);
 187         if (ret < 0)
 188                 rte_panic("Error to get default config of event queue\n");
 189         /* >8 End of event queue initialization. */
 190
 191         if (def_q_conf.nb_atomic_flows < event_q_conf.nb_atomic_flows)
 192                 event_q_conf.nb_atomic_flows = def_q_conf.nb_atomic_flows;
 193
 194         for (event_q_id = 0; event_q_id < (evt_rsrc->evq.nb_queues - 1);
 195                                                                 event_q_id++) {
 196                 ret = rte_event_queue_setup(event_d_id, event_q_id,
 197                                             &event_q_conf);
 198                 if (ret < 0)
 199                         rte_panic("Error in configuring event queue\n");
 200                 evt_rsrc->evq.event_q_id[event_q_id] = event_q_id;
 201         }
 202
 203         event_q_conf.event_queue_cfg |= RTE_EVENT_QUEUE_CFG_SINGLE_LINK;
 204         event_q_conf.priority = RTE_EVENT_DEV_PRIORITY_HIGHEST,
 205         ret = rte_event_queue_setup(event_d_id, event_q_id, &event_q_conf);
 206         if (ret < 0)
 207                 rte_panic("Error in configuring event queue for Tx adapter\n");
 208         evt_rsrc->evq.event_q_id[event_q_id] = event_q_id;
 209 }
 210
 211 static void
 212 l2fwd_rx_tx_adapter_setup_generic(struct l2fwd_resources *rsrc)
 213 {
 214         struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
 215         struct rte_event_eth_rx_adapter_queue_conf eth_q_conf;
 216         uint8_t event_d_id = evt_rsrc->event_d_id;
 217         uint8_t rx_adptr_id = 0;
 218         uint8_t tx_adptr_id = 0;
 219         uint8_t tx_port_id = 0;
 220         uint16_t port_id;
 221         uint32_t service_id;
 222         int32_t ret, i = 0;
 223
 224         memset(&eth_q_conf, 0, sizeof(eth_q_conf));
 225         eth_q_conf.ev.priority = RTE_EVENT_DEV_PRIORITY_NORMAL;
 226
 227         /* Rx adapter setup */
 228         evt_rsrc->rx_adptr.nb_rx_adptr = 1;
 229         evt_rsrc->rx_adptr.rx_adptr = (uint8_t *)malloc(sizeof(uint8_t) *
 230                                         evt_rsrc->rx_adptr.nb_rx_adptr);
 231         if (!evt_rsrc->rx_adptr.rx_adptr) {
 232                 free(evt_rsrc->evp.event_p_id);
 233                 free(evt_rsrc->evq.event_q_id);
 234                 rte_panic("Failed to allocate memery for Rx adapter\n");
 235         }
 236
 237         ret = rte_event_eth_rx_adapter_create(rx_adptr_id, event_d_id,
 238                                               &evt_rsrc->def_p_conf);
 239         if (ret)
 240                 rte_panic("Failed to create rx adapter\n");
 241
 242         /* Configure user requested sched type */
 243         eth_q_conf.ev.sched_type = rsrc->sched_type;
 244         RTE_ETH_FOREACH_DEV(port_id) {
 245                 if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
 246                         continue;
 247                 eth_q_conf.ev.queue_id = evt_rsrc->evq.event_q_id[i];
 248                 ret = rte_event_eth_rx_adapter_queue_add(rx_adptr_id, port_id,
 249                                                          -1, &eth_q_conf);
 250                 if (ret)
 251                         rte_panic("Failed to add queues to Rx adapter\n");
 252                 if (i < evt_rsrc->evq.nb_queues)
 253                         i++;
 254         }
 255
 256         ret = rte_event_eth_rx_adapter_service_id_get(rx_adptr_id, &service_id);
 257         if (ret != -ESRCH && ret != 0)
 258                 rte_panic("Error getting the service ID for rx adptr\n");
 259
 260         rte_service_runstate_set(service_id, 1);
 261         rte_service_set_runstate_mapped_check(service_id, 0);
 262         evt_rsrc->rx_adptr.service_id = service_id;
 263
 264         ret = rte_event_eth_rx_adapter_start(rx_adptr_id);
 265         if (ret)
 266                 rte_panic("Rx adapter[%d] start Failed\n", rx_adptr_id);
 267
 268         evt_rsrc->rx_adptr.rx_adptr[0] = rx_adptr_id;
 269
 270         /* Tx adapter setup */
 271         evt_rsrc->tx_adptr.nb_tx_adptr = 1;
 272         evt_rsrc->tx_adptr.tx_adptr = (uint8_t *)malloc(sizeof(uint8_t) *
 273                                         evt_rsrc->tx_adptr.nb_tx_adptr);
 274         if (!evt_rsrc->tx_adptr.tx_adptr) {
 275                 free(evt_rsrc->rx_adptr.rx_adptr);
 276                 free(evt_rsrc->evp.event_p_id);
 277                 free(evt_rsrc->evq.event_q_id);
 278                 rte_panic("Failed to allocate memery for Rx adapter\n");
 279         }
 280
 281         ret = rte_event_eth_tx_adapter_create(tx_adptr_id, event_d_id,
 282                                               &evt_rsrc->def_p_conf);
 283         if (ret)
 284                 rte_panic("Failed to create tx adapter\n");
 285
 286         RTE_ETH_FOREACH_DEV(port_id) {
 287                 if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
 288                         continue;
 289                 ret = rte_event_eth_tx_adapter_queue_add(tx_adptr_id, port_id,
 290                                                          -1);
 291                 if (ret)
 292                         rte_panic("Failed to add queues to Tx adapter\n");
 293         }
 294
 295         ret = rte_event_eth_tx_adapter_service_id_get(tx_adptr_id, &service_id);
 296         if (ret != -ESRCH && ret != 0)
 297                 rte_panic("Failed to get Tx adapter service ID\n");
 298
 299         rte_service_runstate_set(service_id, 1);
 300         rte_service_set_runstate_mapped_check(service_id, 0);
 301         evt_rsrc->tx_adptr.service_id = service_id;
 302
 303         /* Extra port created. 8< */
 304         ret = rte_event_eth_tx_adapter_event_port_get(tx_adptr_id, &tx_port_id);
 305         if (ret)
 306                 rte_panic("Failed to get Tx adapter port id: %d\n", ret);
 307
 308         ret = rte_event_port_link(event_d_id, tx_port_id,
 309                                   &evt_rsrc->evq.event_q_id[
 310                                         evt_rsrc->evq.nb_queues - 1],
 311                                   NULL, 1);
 312         if (ret != 1)
 313                 rte_panic("Unable to link Tx adapter port to Tx queue:err=%d\n",
 314                          ret);
 315         /* >8 End of extra port created. */
 316
 317         ret = rte_event_eth_tx_adapter_start(tx_adptr_id);
 318         if (ret)
 319                 rte_panic("Tx adapter[%d] start Failed\n", tx_adptr_id);
 320
 321         evt_rsrc->tx_adptr.tx_adptr[0] = tx_adptr_id;
 322 }
 323
 324 void
 325 l2fwd_event_set_generic_ops(struct event_setup_ops *ops)
 326 {
 327         ops->event_device_setup = l2fwd_event_device_setup_generic;
 328         ops->event_queue_setup = l2fwd_event_queue_setup_generic;
 329         ops->event_port_setup = l2fwd_event_port_setup_generic;
 330         ops->adapter_setup = l2fwd_rx_tx_adapter_setup_generic;
 331 }