examples/l3fwd/l3fwd_event.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_malloc.h>
   9
  10 #include "l3fwd.h"
  11 #include "l3fwd_event.h"
  12
  13 struct l3fwd_event_resources *
  14 l3fwd_get_eventdev_rsrc(void)
  15 {
  16         static struct l3fwd_event_resources *rsrc;
  17
  18         if (rsrc != NULL)
  19                 return rsrc;
  20
  21         rsrc = rte_zmalloc("l3fwd", sizeof(struct l3fwd_event_resources), 0);
  22         if (rsrc != NULL) {
  23                 rsrc->sched_type = RTE_SCHED_TYPE_ATOMIC;
  24                 rsrc->eth_rx_queues = 1;
  25                 return rsrc;
  26         }
  27
  28         rte_exit(EXIT_FAILURE, "Unable to allocate memory for eventdev cfg\n");
  29
  30         return NULL;
  31 }
  32
  33 static void
  34 l3fwd_event_capability_setup(void)
  35 {
  36         struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
  37         uint32_t caps = 0;
  38         uint16_t i;
  39         int ret;
  40
  41         RTE_ETH_FOREACH_DEV(i) {
  42                 ret = rte_event_eth_tx_adapter_caps_get(0, i, &caps);
  43                 if (ret)
  44                         rte_exit(EXIT_FAILURE,
  45                                  "Invalid capability for Tx adptr port %d\n",
  46                                  i);
  47
  48                 evt_rsrc->tx_mode_q |= !(caps &
  49                                    RTE_EVENT_ETH_TX_ADAPTER_CAP_INTERNAL_PORT);
  50         }
  51
  52         if (evt_rsrc->tx_mode_q)
  53                 l3fwd_event_set_generic_ops(&evt_rsrc->ops);
  54         else
  55                 l3fwd_event_set_internal_port_ops(&evt_rsrc->ops);
  56 }
  57
  58 void
  59 l3fwd_event_resource_setup(void)
  60 {
  61         struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
  62
  63         if (!evt_rsrc->enabled)
  64                 return;
  65
  66         if (!rte_event_dev_count())
  67                 rte_exit(EXIT_FAILURE, "No Eventdev found");
  68
  69         /* Setup eventdev capability callbacks */
  70         l3fwd_event_capability_setup();
  71
  72         /* Event device configuration */
  73         evt_rsrc->ops.event_device_setup();
  74 }