examples/l2fwd-event/l2fwd_event_internal_port.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_internal_port(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         uint8_t disable_implicit_release;
  31         const uint8_t event_d_id = 0; /* Always use first event device only */
  32         uint32_t event_queue_cfg = 0;
  33         uint16_t ethdev_count = 0;
  34         uint16_t num_workers = 0;
  35         uint16_t port_id;
  36         int ret;
  37
  38         RTE_ETH_FOREACH_DEV(port_id) {
  39                 if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
  40                         continue;
  41                 ethdev_count++;
  42         }
  43
  44         /* Event device configurtion */
  45         rte_event_dev_info_get(event_d_id, &dev_info);
  46
  47         disable_implicit_release = !!(dev_info.event_dev_cap &
  48                                     RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE);
  49         evt_rsrc->disable_implicit_release =
  50                                                 disable_implicit_release;
  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         event_d_conf.nb_event_queues = ethdev_count;
  56         if (dev_info.max_event_queues < event_d_conf.nb_event_queues)
  57                 event_d_conf.nb_event_queues = dev_info.max_event_queues;
  58
  59         if (dev_info.max_num_events < event_d_conf.nb_events_limit)
  60                 event_d_conf.nb_events_limit = dev_info.max_num_events;
  61
  62         if (dev_info.max_event_queue_flows < event_d_conf.nb_event_queue_flows)
  63                 event_d_conf.nb_event_queue_flows =
  64                                                 dev_info.max_event_queue_flows;
  65
  66         if (dev_info.max_event_port_dequeue_depth <
  67                                 event_d_conf.nb_event_port_dequeue_depth)
  68                 event_d_conf.nb_event_port_dequeue_depth =
  69                                 dev_info.max_event_port_dequeue_depth;
  70
  71         if (dev_info.max_event_port_enqueue_depth <
  72                                 event_d_conf.nb_event_port_enqueue_depth)
  73                 event_d_conf.nb_event_port_enqueue_depth =
  74                                 dev_info.max_event_port_enqueue_depth;
  75
  76         num_workers = rte_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         evt_rsrc->has_burst = !!(dev_info.event_dev_cap &
  84                                     RTE_EVENT_DEV_CAP_BURST_MODE);
  85
  86         ret = rte_event_dev_configure(event_d_id, &event_d_conf);
  87         if (ret < 0)
  88                 rte_panic("Error in configuring event device\n");
  89
  90         evt_rsrc->event_d_id = event_d_id;
  91         return event_queue_cfg;
  92 }
  93
  94 void
  95 l2fwd_event_set_internal_port_ops(struct event_setup_ops *ops)
  96 {
  97         ops->event_device_setup = l2fwd_event_device_setup_internal_port;
  98 }