dpdk_api.c

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/*
 * Copyright (c) 2017 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#include <vnet/vnet.h>
#include <vppinfra/vec.h>
#include <vppinfra/error.h>
#include <vppinfra/format.h>
#include <vppinfra/bitmap.h>

#include <vnet/ethernet/ethernet.h>
#include <dpdk/device/dpdk.h>
#include <vlib/pci/pci.h>

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/mount.h>
#include <string.h>
#include <fcntl.h>

#include <dpdk/device/dpdk_priv.h>

#include <vlibapi/api.h>
#include <vlibmemory/api.h>

/* define message IDs */
#include <dpdk/api/dpdk.api_enum.h>
#include <dpdk/api/dpdk.api_types.h>

#include <vlibapi/api_helper_macros.h>

static void
  vl_api_sw_interface_set_dpdk_hqos_pipe_t_handler
  (vl_api_sw_interface_set_dpdk_hqos_pipe_t * mp)
{
  vl_api_sw_interface_set_dpdk_hqos_pipe_reply_t *rmp;
  int rv = 0;

  dpdk_main_t *dm = &dpdk_main;
  dpdk_device_t *xd;

  u32 sw_if_index = ntohl (mp->sw_if_index);
  u32 subport = ntohl (mp->subport);
  u32 pipe = ntohl (mp->pipe);
  u32 profile = ntohl (mp->profile);
  vnet_hw_interface_t *hw;

  VALIDATE_SW_IF_INDEX (mp);

  /* hw_if & dpdk device */
  hw = vnet_get_sup_hw_interface (dm->vnet_main, sw_if_index);

  xd = vec_elt_at_index (dm->devices, hw->dev_instance);

  rv = rte_sched_pipe_config (xd->hqos_ht->hqos, subport, pipe, profile);

  BAD_SW_IF_INDEX_LABEL;

  REPLY_MACRO (VL_API_SW_INTERFACE_SET_DPDK_HQOS_PIPE_REPLY);
}

static void *vl_api_sw_interface_set_dpdk_hqos_pipe_t_print
  (vl_api_sw_interface_set_dpdk_hqos_pipe_t * mp, void *handle)
{
  u8 *s;

  s = format (0, "SCRIPT: sw_interface_set_dpdk_hqos_pipe ");

  s = format (s, "sw_if_index %u ", ntohl (mp->sw_if_index));

  s = format (s, "subport %u  pipe %u  profile %u ",
              ntohl (mp->subport), ntohl (mp->pipe), ntohl (mp->profile));

  FINISH;
}

static void
  vl_api_sw_interface_set_dpdk_hqos_subport_t_handler
  (vl_api_sw_interface_set_dpdk_hqos_subport_t * mp)
{
  vl_api_sw_interface_set_dpdk_hqos_subport_reply_t *rmp;
  int rv = 0;

  dpdk_main_t *dm = &dpdk_main;
  dpdk_device_t *xd;
  struct rte_sched_subport_params p;

  u32 sw_if_index = ntohl (mp->sw_if_index);
  u32 subport = ntohl (mp->subport);
  p.tb_rate = ntohl (mp->tb_rate);
  p.tb_size = ntohl (mp->tb_size);
  p.tc_rate[0] = ntohl (mp->tc_rate[0]);
  p.tc_rate[1] = ntohl (mp->tc_rate[1]);
  p.tc_rate[2] = ntohl (mp->tc_rate[2]);
  p.tc_rate[3] = ntohl (mp->tc_rate[3]);
  p.tc_period = ntohl (mp->tc_period);

  vnet_hw_interface_t *hw;

  VALIDATE_SW_IF_INDEX (mp);

  /* hw_if & dpdk device */
  hw = vnet_get_sup_hw_interface (dm->vnet_main, sw_if_index);

  xd = vec_elt_at_index (dm->devices, hw->dev_instance);

  rv = rte_sched_subport_config (xd->hqos_ht->hqos, subport, &p);

  BAD_SW_IF_INDEX_LABEL;

  REPLY_MACRO (VL_API_SW_INTERFACE_SET_DPDK_HQOS_SUBPORT_REPLY);
}

static void *vl_api_sw_interface_set_dpdk_hqos_subport_t_print
  (vl_api_sw_interface_set_dpdk_hqos_subport_t * mp, void *handle)
{
  u8 *s;

  s = format (0, "SCRIPT: sw_interface_set_dpdk_hqos_subport ");

  s = format (s, "sw_if_index %u ", ntohl (mp->sw_if_index));

  s =
    format (s,
            "subport %u  rate %u  bkt_size %u  tc0 %u tc1 %u tc2 %u tc3 %u period %u",
            ntohl (mp->subport), ntohl (mp->tb_rate), ntohl (mp->tb_size),
            ntohl (mp->tc_rate[0]), ntohl (mp->tc_rate[1]),
            ntohl (mp->tc_rate[2]), ntohl (mp->tc_rate[3]),
            ntohl (mp->tc_period));

  FINISH;
}

static void
  vl_api_sw_interface_set_dpdk_hqos_tctbl_t_handler
  (vl_api_sw_interface_set_dpdk_hqos_tctbl_t * mp)
{
  vl_api_sw_interface_set_dpdk_hqos_tctbl_reply_t *rmp;
  int rv = 0;

  dpdk_main_t *dm = &dpdk_main;
  vlib_thread_main_t *tm = vlib_get_thread_main ();
  dpdk_device_t *xd;

  u32 sw_if_index = ntohl (mp->sw_if_index);
  u32 entry = ntohl (mp->entry);
  u32 tc = ntohl (mp->tc);
  u32 queue = ntohl (mp->queue);
  u32 val, i;

  vnet_hw_interface_t *hw;

  VALIDATE_SW_IF_INDEX (mp);

  /* hw_if & dpdk device */
  hw = vnet_get_sup_hw_interface (dm->vnet_main, sw_if_index);

  xd = vec_elt_at_index (dm->devices, hw->dev_instance);

  if (tc >= RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE)
    {
      clib_warning ("invalid traffic class !!");
      rv = VNET_API_ERROR_INVALID_VALUE;
      goto done;
    }
  if (queue >= RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS)
    {
      clib_warning ("invalid queue !!");
      rv = VNET_API_ERROR_INVALID_VALUE;
      goto done;
    }

  /* Detect the set of worker threads */
  uword *p = hash_get_mem (tm->thread_registrations_by_name, "workers");

  if (p == 0)
    {
      clib_warning ("worker thread registration AWOL !!");
      rv = VNET_API_ERROR_INVALID_VALUE_2;
      goto done;
    }

  vlib_thread_registration_t *tr = (vlib_thread_registration_t *) p[0];
  int worker_thread_first = tr->first_index;
  int worker_thread_count = tr->count;

  val = tc * RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS + queue;
  for (i = 0; i < worker_thread_count; i++)
    xd->hqos_wt[worker_thread_first + i].hqos_tc_table[entry] = val;

  BAD_SW_IF_INDEX_LABEL;
done:

  REPLY_MACRO (VL_API_SW_INTERFACE_SET_DPDK_HQOS_TCTBL_REPLY);
}

static void *vl_api_sw_interface_set_dpdk_hqos_tctbl_t_print
  (vl_api_sw_interface_set_dpdk_hqos_tctbl_t * mp, void *handle)
{
  u8 *s;

  s = format (0, "SCRIPT: sw_interface_set_dpdk_hqos_tctbl ");

  s = format (s, "sw_if_index %u ", ntohl (mp->sw_if_index));

  s = format (s, "entry %u  tc %u  queue %u",
              ntohl (mp->entry), ntohl (mp->tc), ntohl (mp->queue));

  FINISH;
}

#include <dpdk/api/dpdk.api.c>
static clib_error_t *
dpdk_api_init (vlib_main_t * vm)
{
  dpdk_main_t *dm = &dpdk_main;

  /* Ask for a correctly-sized block of API message decode slots */
  dm->msg_id_base = setup_message_id_table ();

  return 0;
}

/* *INDENT-OFF* */
VLIB_INIT_FUNCTION (dpdk_api_init) =
{
  .runs_after = VLIB_INITS ("dpdk_init"),
/* *INDENT-OFF* */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */