examples/l3fwd/l3fwd_event_generic.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2019 Marvell International Ltd.
   3  */
   4
   5 #include <stdbool.h>
   6
   7 #include "l3fwd.h"
   8 #include "l3fwd_event.h"
   9
  10 static uint32_t
  11 l3fwd_event_device_setup_generic(void)
  12 {
  13         struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
  14         struct rte_event_dev_config event_d_conf = {
  15                 .nb_events_limit  = 4096,
  16                 .nb_event_queue_flows = 1024,
  17                 .nb_event_port_dequeue_depth = 128,
  18                 .nb_event_port_enqueue_depth = 128
  19         };
  20         struct rte_event_dev_info dev_info;
  21         const uint8_t event_d_id = 0; /* Always use first event device only */
  22         uint32_t event_queue_cfg = 0;
  23         uint16_t ethdev_count = 0;
  24         uint16_t num_workers = 0;
  25         uint16_t port_id;
  26         int ret;
  27
  28         RTE_ETH_FOREACH_DEV(port_id) {
  29                 if ((evt_rsrc->port_mask & (1 << port_id)) == 0)
  30                         continue;
  31                 ethdev_count++;
  32         }
  33
  34         /* Event device configuration */
  35         rte_event_dev_info_get(event_d_id, &dev_info);
  36         /* Enable implicit release */
  37         if (dev_info.event_dev_cap & RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE)
  38                 evt_rsrc->disable_implicit_release = 0;
  39
  40         if (dev_info.event_dev_cap & RTE_EVENT_DEV_CAP_QUEUE_ALL_TYPES)
  41                 event_queue_cfg |= RTE_EVENT_QUEUE_CFG_ALL_TYPES;
  42
  43         /* One queue for each ethdev port + one Tx adapter Single link queue. */
  44         event_d_conf.nb_event_queues = ethdev_count + 1;
  45         if (dev_info.max_event_queues < event_d_conf.nb_event_queues)
  46                 event_d_conf.nb_event_queues = dev_info.max_event_queues;
  47
  48         if (dev_info.max_num_events < event_d_conf.nb_events_limit)
  49                 event_d_conf.nb_events_limit = dev_info.max_num_events;
  50
  51         if (dev_info.max_event_queue_flows < event_d_conf.nb_event_queue_flows)
  52                 event_d_conf.nb_event_queue_flows =
  53                                                 dev_info.max_event_queue_flows;
  54
  55         if (dev_info.max_event_port_dequeue_depth <
  56                                 event_d_conf.nb_event_port_dequeue_depth)
  57                 event_d_conf.nb_event_port_dequeue_depth =
  58                                 dev_info.max_event_port_dequeue_depth;
  59
  60         if (dev_info.max_event_port_enqueue_depth <
  61                                 event_d_conf.nb_event_port_enqueue_depth)
  62                 event_d_conf.nb_event_port_enqueue_depth =
  63                                 dev_info.max_event_port_enqueue_depth;
  64
  65         num_workers = rte_lcore_count() - rte_service_lcore_count();
  66         if (dev_info.max_event_ports < num_workers)
  67                 num_workers = dev_info.max_event_ports;
  68
  69         event_d_conf.nb_event_ports = num_workers;
  70         evt_rsrc->evp.nb_ports = num_workers;
  71         evt_rsrc->evq.nb_queues = event_d_conf.nb_event_queues;
  72
  73         evt_rsrc->has_burst = !!(dev_info.event_dev_cap &
  74                                     RTE_EVENT_DEV_CAP_BURST_MODE);
  75
  76         ret = rte_event_dev_configure(event_d_id, &event_d_conf);
  77         if (ret < 0)
  78                 rte_panic("Error in configuring event device\n");
  79
  80         evt_rsrc->event_d_id = event_d_id;
  81         return event_queue_cfg;
  82 }
  83
  84 static void
  85 l3fwd_event_port_setup_generic(void)
  86 {
  87         struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
  88         uint8_t event_d_id = evt_rsrc->event_d_id;
  89         struct rte_event_port_conf event_p_conf = {
  90                 .dequeue_depth = 32,
  91                 .enqueue_depth = 32,
  92                 .new_event_threshold = 4096
  93         };
  94         struct rte_event_port_conf def_p_conf;
  95         uint8_t event_p_id;
  96         int32_t ret;
  97
  98         evt_rsrc->evp.event_p_id = (uint8_t *)malloc(sizeof(uint8_t) *
  99                                         evt_rsrc->evp.nb_ports);
 100         if (!evt_rsrc->evp.event_p_id)
 101                 rte_panic("No space is available\n");
 102
 103         memset(&def_p_conf, 0, sizeof(struct rte_event_port_conf));
 104         ret = rte_event_port_default_conf_get(event_d_id, 0, &def_p_conf);
 105         if (ret < 0)
 106                 rte_panic("Error to get default configuration of event port\n");
 107
 108         if (def_p_conf.new_event_threshold < event_p_conf.new_event_threshold)
 109                 event_p_conf.new_event_threshold =
 110                         def_p_conf.new_event_threshold;
 111
 112         if (def_p_conf.dequeue_depth < event_p_conf.dequeue_depth)
 113                 event_p_conf.dequeue_depth = def_p_conf.dequeue_depth;
 114
 115         if (def_p_conf.enqueue_depth < event_p_conf.enqueue_depth)
 116                 event_p_conf.enqueue_depth = def_p_conf.enqueue_depth;
 117
 118         event_p_conf.event_port_cfg = 0;
 119         if (evt_rsrc->disable_implicit_release)
 120                 event_p_conf.event_port_cfg |=
 121                         RTE_EVENT_PORT_CFG_DISABLE_IMPL_REL;
 122
 123         evt_rsrc->deq_depth = def_p_conf.dequeue_depth;
 124
 125         for (event_p_id = 0; event_p_id < evt_rsrc->evp.nb_ports;
 126                                                                 event_p_id++) {
 127                 ret = rte_event_port_setup(event_d_id, event_p_id,
 128                                            &event_p_conf);
 129                 if (ret < 0)
 130                         rte_panic("Error in configuring event port %d\n",
 131                                   event_p_id);
 132
 133                 ret = rte_event_port_link(event_d_id, event_p_id,
 134                                           evt_rsrc->evq.event_q_id,
 135                                           NULL,
 136                                           evt_rsrc->evq.nb_queues - 1);
 137                 if (ret != (evt_rsrc->evq.nb_queues - 1))
 138                         rte_panic("Error in linking event port %d to queues\n",
 139                                   event_p_id);
 140                 evt_rsrc->evp.event_p_id[event_p_id] = event_p_id;
 141         }
 142         /* init spinlock */
 143         rte_spinlock_init(&evt_rsrc->evp.lock);
 144
 145         evt_rsrc->def_p_conf = event_p_conf;
 146 }
 147
 148 static void
 149 l3fwd_event_queue_setup_generic(uint32_t event_queue_cfg)
 150 {
 151         struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
 152         uint8_t event_d_id = evt_rsrc->event_d_id;
 153         struct rte_event_queue_conf event_q_conf = {
 154                 .nb_atomic_flows = 1024,
 155                 .nb_atomic_order_sequences = 1024,
 156                 .event_queue_cfg = event_queue_cfg,
 157                 .priority = RTE_EVENT_DEV_PRIORITY_NORMAL
 158         };
 159         struct rte_event_queue_conf def_q_conf;
 160         uint8_t event_q_id;
 161         int32_t ret;
 162
 163         event_q_conf.schedule_type = evt_rsrc->sched_type;
 164         evt_rsrc->evq.event_q_id = (uint8_t *)malloc(sizeof(uint8_t) *
 165                                         evt_rsrc->evq.nb_queues);
 166         if (!evt_rsrc->evq.event_q_id)
 167                 rte_panic("Memory allocation failure\n");
 168
 169         ret = rte_event_queue_default_conf_get(event_d_id, 0, &def_q_conf);
 170         if (ret < 0)
 171                 rte_panic("Error to get default config of event queue\n");
 172
 173         if (def_q_conf.nb_atomic_flows < event_q_conf.nb_atomic_flows)
 174                 event_q_conf.nb_atomic_flows = def_q_conf.nb_atomic_flows;
 175
 176         for (event_q_id = 0; event_q_id < (evt_rsrc->evq.nb_queues - 1);
 177                                                                 event_q_id++) {
 178                 ret = rte_event_queue_setup(event_d_id, event_q_id,
 179                                             &event_q_conf);
 180                 if (ret < 0)
 181                         rte_panic("Error in configuring event queue\n");
 182                 evt_rsrc->evq.event_q_id[event_q_id] = event_q_id;
 183         }
 184
 185         event_q_conf.event_queue_cfg |= RTE_EVENT_QUEUE_CFG_SINGLE_LINK;
 186         event_q_conf.priority = RTE_EVENT_DEV_PRIORITY_HIGHEST,
 187         ret = rte_event_queue_setup(event_d_id, event_q_id, &event_q_conf);
 188         if (ret < 0)
 189                 rte_panic("Error in configuring event queue for Tx adapter\n");
 190         evt_rsrc->evq.event_q_id[event_q_id] = event_q_id;
 191 }
 192
 193 static void
 194 l3fwd_rx_tx_adapter_setup_generic(void)
 195 {
 196         struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
 197         struct rte_event_eth_rx_adapter_queue_conf eth_q_conf;
 198         uint8_t event_d_id = evt_rsrc->event_d_id;
 199         uint8_t rx_adptr_id = 0;
 200         uint8_t tx_adptr_id = 0;
 201         uint8_t tx_port_id = 0;
 202         uint16_t port_id;
 203         uint32_t service_id;
 204         int32_t ret, i = 0;
 205
 206         memset(&eth_q_conf, 0, sizeof(eth_q_conf));
 207         eth_q_conf.ev.priority = RTE_EVENT_DEV_PRIORITY_NORMAL;
 208
 209         /* Rx adapter setup */
 210         evt_rsrc->rx_adptr.nb_rx_adptr = 1;
 211         evt_rsrc->rx_adptr.rx_adptr = (uint8_t *)malloc(sizeof(uint8_t) *
 212                                         evt_rsrc->rx_adptr.nb_rx_adptr);
 213         if (!evt_rsrc->rx_adptr.rx_adptr) {
 214                 free(evt_rsrc->evp.event_p_id);
 215                 free(evt_rsrc->evq.event_q_id);
 216                 rte_panic("Failed to allocate memory for Rx adapter\n");
 217         }
 218
 219         ret = rte_event_eth_rx_adapter_create(rx_adptr_id, event_d_id,
 220                                               &evt_rsrc->def_p_conf);
 221         if (ret)
 222                 rte_panic("Failed to create rx adapter\n");
 223
 224         /* Configure user requested sched type */
 225         eth_q_conf.ev.sched_type = evt_rsrc->sched_type;
 226         RTE_ETH_FOREACH_DEV(port_id) {
 227                 if ((evt_rsrc->port_mask & (1 << port_id)) == 0)
 228                         continue;
 229                 eth_q_conf.ev.queue_id = evt_rsrc->evq.event_q_id[i];
 230                 ret = rte_event_eth_rx_adapter_queue_add(rx_adptr_id, port_id,
 231                                                          -1, &eth_q_conf);
 232                 if (ret)
 233                         rte_panic("Failed to add queues to Rx adapter\n");
 234                 if (i < evt_rsrc->evq.nb_queues)
 235                         i++;
 236         }
 237
 238         ret = rte_event_eth_rx_adapter_service_id_get(rx_adptr_id, &service_id);
 239         if (ret != -ESRCH && ret != 0)
 240                 rte_panic("Error getting the service ID for rx adptr\n");
 241
 242         rte_service_runstate_set(service_id, 1);
 243         rte_service_set_runstate_mapped_check(service_id, 0);
 244         evt_rsrc->rx_adptr.service_id = service_id;
 245
 246         ret = rte_event_eth_rx_adapter_start(rx_adptr_id);
 247         if (ret)
 248                 rte_panic("Rx adapter[%d] start Failed\n", rx_adptr_id);
 249
 250         evt_rsrc->rx_adptr.rx_adptr[0] = rx_adptr_id;
 251
 252         /* Tx adapter setup */
 253         evt_rsrc->tx_adptr.nb_tx_adptr = 1;
 254         evt_rsrc->tx_adptr.tx_adptr = (uint8_t *)malloc(sizeof(uint8_t) *
 255                                         evt_rsrc->tx_adptr.nb_tx_adptr);
 256         if (!evt_rsrc->tx_adptr.tx_adptr) {
 257                 free(evt_rsrc->rx_adptr.rx_adptr);
 258                 free(evt_rsrc->evp.event_p_id);
 259                 free(evt_rsrc->evq.event_q_id);
 260                 rte_panic("Failed to allocate memory for Rx adapter\n");
 261         }
 262
 263         ret = rte_event_eth_tx_adapter_create(tx_adptr_id, event_d_id,
 264                                               &evt_rsrc->def_p_conf);
 265         if (ret)
 266                 rte_panic("Failed to create tx adapter\n");
 267
 268         RTE_ETH_FOREACH_DEV(port_id) {
 269                 if ((evt_rsrc->port_mask & (1 << port_id)) == 0)
 270                         continue;
 271                 ret = rte_event_eth_tx_adapter_queue_add(tx_adptr_id, port_id,
 272                                                          -1);
 273                 if (ret)
 274                         rte_panic("Failed to add queues to Tx adapter\n");
 275         }
 276
 277         ret = rte_event_eth_tx_adapter_service_id_get(tx_adptr_id, &service_id);
 278         if (ret != -ESRCH && ret != 0)
 279                 rte_panic("Failed to get Tx adapter service ID\n");
 280
 281         rte_service_runstate_set(service_id, 1);
 282         rte_service_set_runstate_mapped_check(service_id, 0);
 283         evt_rsrc->tx_adptr.service_id = service_id;
 284
 285         ret = rte_event_eth_tx_adapter_event_port_get(tx_adptr_id, &tx_port_id);
 286         if (ret)
 287                 rte_panic("Failed to get Tx adapter port id: %d\n", ret);
 288
 289         ret = rte_event_port_link(event_d_id, tx_port_id,
 290                                   &evt_rsrc->evq.event_q_id[
 291                                         evt_rsrc->evq.nb_queues - 1],
 292                                   NULL, 1);
 293         if (ret != 1)
 294                 rte_panic("Unable to link Tx adapter port to Tx queue:err=%d\n",
 295                          ret);
 296
 297         ret = rte_event_eth_tx_adapter_start(tx_adptr_id);
 298         if (ret)
 299                 rte_panic("Tx adapter[%d] start Failed\n", tx_adptr_id);
 300
 301         evt_rsrc->tx_adptr.tx_adptr[0] = tx_adptr_id;
 302 }
 303
 304 void
 305 l3fwd_event_set_generic_ops(struct l3fwd_event_setup_ops *ops)
 306 {
 307         ops->event_device_setup = l3fwd_event_device_setup_generic;
 308         ops->event_queue_setup = l3fwd_event_queue_setup_generic;
 309         ops->event_port_setup = l3fwd_event_port_setup_generic;
 310         ops->adapter_setup = l3fwd_rx_tx_adapter_setup_generic;
 311 }