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.disable_implicit_release =
 119                 evt_rsrc->disable_implicit_release;
 120         evt_rsrc->deq_depth = def_p_conf.dequeue_depth;
 121
 122         for (event_p_id = 0; event_p_id < evt_rsrc->evp.nb_ports;
 123                                                                 event_p_id++) {
 124                 ret = rte_event_port_setup(event_d_id, event_p_id,
 125                                            &event_p_conf);
 126                 if (ret < 0)
 127                         rte_panic("Error in configuring event port %d\n",
 128                                   event_p_id);
 129
 130                 ret = rte_event_port_link(event_d_id, event_p_id,
 131                                           evt_rsrc->evq.event_q_id,
 132                                           NULL,
 133                                           evt_rsrc->evq.nb_queues - 1);
 134                 if (ret != (evt_rsrc->evq.nb_queues - 1))
 135                         rte_panic("Error in linking event port %d to queues\n",
 136                                   event_p_id);
 137                 evt_rsrc->evp.event_p_id[event_p_id] = event_p_id;
 138         }
 139         /* init spinlock */
 140         rte_spinlock_init(&evt_rsrc->evp.lock);
 141
 142         evt_rsrc->def_p_conf = event_p_conf;
 143 }
 144
 145 static void
 146 l3fwd_event_queue_setup_generic(uint32_t event_queue_cfg)
 147 {
 148         struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
 149         uint8_t event_d_id = evt_rsrc->event_d_id;
 150         struct rte_event_queue_conf event_q_conf = {
 151                 .nb_atomic_flows = 1024,
 152                 .nb_atomic_order_sequences = 1024,
 153                 .event_queue_cfg = event_queue_cfg,
 154                 .priority = RTE_EVENT_DEV_PRIORITY_NORMAL
 155         };
 156         struct rte_event_queue_conf def_q_conf;
 157         uint8_t event_q_id;
 158         int32_t ret;
 159
 160         event_q_conf.schedule_type = evt_rsrc->sched_type;
 161         evt_rsrc->evq.event_q_id = (uint8_t *)malloc(sizeof(uint8_t) *
 162                                         evt_rsrc->evq.nb_queues);
 163         if (!evt_rsrc->evq.event_q_id)
 164                 rte_panic("Memory allocation failure\n");
 165
 166         ret = rte_event_queue_default_conf_get(event_d_id, 0, &def_q_conf);
 167         if (ret < 0)
 168                 rte_panic("Error to get default config of event queue\n");
 169
 170         if (def_q_conf.nb_atomic_flows < event_q_conf.nb_atomic_flows)
 171                 event_q_conf.nb_atomic_flows = def_q_conf.nb_atomic_flows;
 172
 173         for (event_q_id = 0; event_q_id < (evt_rsrc->evq.nb_queues - 1);
 174                                                                 event_q_id++) {
 175                 ret = rte_event_queue_setup(event_d_id, event_q_id,
 176                                             &event_q_conf);
 177                 if (ret < 0)
 178                         rte_panic("Error in configuring event queue\n");
 179                 evt_rsrc->evq.event_q_id[event_q_id] = event_q_id;
 180         }
 181
 182         event_q_conf.event_queue_cfg |= RTE_EVENT_QUEUE_CFG_SINGLE_LINK;
 183         event_q_conf.priority = RTE_EVENT_DEV_PRIORITY_HIGHEST,
 184         ret = rte_event_queue_setup(event_d_id, event_q_id, &event_q_conf);
 185         if (ret < 0)
 186                 rte_panic("Error in configuring event queue for Tx adapter\n");
 187         evt_rsrc->evq.event_q_id[event_q_id] = event_q_id;
 188 }
 189
 190 static void
 191 l3fwd_rx_tx_adapter_setup_generic(void)
 192 {
 193         struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
 194         struct rte_event_eth_rx_adapter_queue_conf eth_q_conf;
 195         uint8_t event_d_id = evt_rsrc->event_d_id;
 196         uint8_t rx_adptr_id = 0;
 197         uint8_t tx_adptr_id = 0;
 198         uint8_t tx_port_id = 0;
 199         uint16_t port_id;
 200         uint32_t service_id;
 201         int32_t ret, i = 0;
 202
 203         memset(&eth_q_conf, 0, sizeof(eth_q_conf));
 204         eth_q_conf.ev.priority = RTE_EVENT_DEV_PRIORITY_NORMAL;
 205
 206         /* Rx adapter setup */
 207         evt_rsrc->rx_adptr.nb_rx_adptr = 1;
 208         evt_rsrc->rx_adptr.rx_adptr = (uint8_t *)malloc(sizeof(uint8_t) *
 209                                         evt_rsrc->rx_adptr.nb_rx_adptr);
 210         if (!evt_rsrc->rx_adptr.rx_adptr) {
 211                 free(evt_rsrc->evp.event_p_id);
 212                 free(evt_rsrc->evq.event_q_id);
 213                 rte_panic("Failed to allocate memory for Rx adapter\n");
 214         }
 215
 216         ret = rte_event_eth_rx_adapter_create(rx_adptr_id, event_d_id,
 217                                               &evt_rsrc->def_p_conf);
 218         if (ret)
 219                 rte_panic("Failed to create rx adapter\n");
 220
 221         /* Configure user requested sched type */
 222         eth_q_conf.ev.sched_type = evt_rsrc->sched_type;
 223         RTE_ETH_FOREACH_DEV(port_id) {
 224                 if ((evt_rsrc->port_mask & (1 << port_id)) == 0)
 225                         continue;
 226                 eth_q_conf.ev.queue_id = evt_rsrc->evq.event_q_id[i];
 227                 ret = rte_event_eth_rx_adapter_queue_add(rx_adptr_id, port_id,
 228                                                          -1, &eth_q_conf);
 229                 if (ret)
 230                         rte_panic("Failed to add queues to Rx adapter\n");
 231                 if (i < evt_rsrc->evq.nb_queues)
 232                         i++;
 233         }
 234
 235         ret = rte_event_eth_rx_adapter_service_id_get(rx_adptr_id, &service_id);
 236         if (ret != -ESRCH && ret != 0)
 237                 rte_panic("Error getting the service ID for rx adptr\n");
 238
 239         rte_service_runstate_set(service_id, 1);
 240         rte_service_set_runstate_mapped_check(service_id, 0);
 241         evt_rsrc->rx_adptr.service_id = service_id;
 242
 243         ret = rte_event_eth_rx_adapter_start(rx_adptr_id);
 244         if (ret)
 245                 rte_panic("Rx adapter[%d] start Failed\n", rx_adptr_id);
 246
 247         evt_rsrc->rx_adptr.rx_adptr[0] = rx_adptr_id;
 248
 249         /* Tx adapter setup */
 250         evt_rsrc->tx_adptr.nb_tx_adptr = 1;
 251         evt_rsrc->tx_adptr.tx_adptr = (uint8_t *)malloc(sizeof(uint8_t) *
 252                                         evt_rsrc->tx_adptr.nb_tx_adptr);
 253         if (!evt_rsrc->tx_adptr.tx_adptr) {
 254                 free(evt_rsrc->rx_adptr.rx_adptr);
 255                 free(evt_rsrc->evp.event_p_id);
 256                 free(evt_rsrc->evq.event_q_id);
 257                 rte_panic("Failed to allocate memory for Rx adapter\n");
 258         }
 259
 260         ret = rte_event_eth_tx_adapter_create(tx_adptr_id, event_d_id,
 261                                               &evt_rsrc->def_p_conf);
 262         if (ret)
 263                 rte_panic("Failed to create tx adapter\n");
 264
 265         RTE_ETH_FOREACH_DEV(port_id) {
 266                 if ((evt_rsrc->port_mask & (1 << port_id)) == 0)
 267                         continue;
 268                 ret = rte_event_eth_tx_adapter_queue_add(tx_adptr_id, port_id,
 269                                                          -1);
 270                 if (ret)
 271                         rte_panic("Failed to add queues to Tx adapter\n");
 272         }
 273
 274         ret = rte_event_eth_tx_adapter_service_id_get(tx_adptr_id, &service_id);
 275         if (ret != -ESRCH && ret != 0)
 276                 rte_panic("Failed to get Tx adapter service ID\n");
 277
 278         rte_service_runstate_set(service_id, 1);
 279         rte_service_set_runstate_mapped_check(service_id, 0);
 280         evt_rsrc->tx_adptr.service_id = service_id;
 281
 282         ret = rte_event_eth_tx_adapter_event_port_get(tx_adptr_id, &tx_port_id);
 283         if (ret)
 284                 rte_panic("Failed to get Tx adapter port id: %d\n", ret);
 285
 286         ret = rte_event_port_link(event_d_id, tx_port_id,
 287                                   &evt_rsrc->evq.event_q_id[
 288                                         evt_rsrc->evq.nb_queues - 1],
 289                                   NULL, 1);
 290         if (ret != 1)
 291                 rte_panic("Unable to link Tx adapter port to Tx queue:err=%d\n",
 292                          ret);
 293
 294         ret = rte_event_eth_tx_adapter_start(tx_adptr_id);
 295         if (ret)
 296                 rte_panic("Tx adapter[%d] start Failed\n", tx_adptr_id);
 297
 298         evt_rsrc->tx_adptr.tx_adptr[0] = tx_adptr_id;
 299 }
 300
 301 void
 302 l3fwd_event_set_generic_ops(struct l3fwd_event_setup_ops *ops)
 303 {
 304         ops->event_device_setup = l3fwd_event_device_setup_generic;
 305         ops->event_queue_setup = l3fwd_event_queue_setup_generic;
 306         ops->event_port_setup = l3fwd_event_port_setup_generic;
 307         ops->adapter_setup = l3fwd_rx_tx_adapter_setup_generic;
 308 }