pp2_api.c

Go to the documentation of this file.

/*
 *------------------------------------------------------------------
 * Copyright (c) 2019 Arm Limited.
 * 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 <vlib/vlib.h>
#include <vlib/unix/unix.h>
#include <vnet/ethernet/ethernet.h>

#include <marvell/pp2/pp2.h>

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

/* define message IDs */
#include <marvell/pp2/pp2_msg_enum.h>

/* define message structures */
#define vl_typedefs
#include <marvell/pp2/pp2_all_api_h.h>
#undef vl_typedefs

/* define generated endian-swappers */
#define vl_endianfun
#include <marvell/pp2/pp2_all_api_h.h>
#undef vl_endianfun

/* instantiate all the print functions we know about */
#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)

/* get the API version number */
#define vl_api_version(n,v) static u32 api_version=(v);
#include <marvell/pp2/pp2_all_api_h.h>
#undef vl_api_version

/* Macro to finish up custom dump fns */
#define FINISH                                  \
    vec_add1 (s, 0);                            \
    vl_print (handle, (char *)s);               \
    vec_free (s);                               \
    return handle;

#include <vlibapi/api_helper_macros.h>

#define foreach_pp2_plugin_api_msg     \
_(MRVL_PP2_CREATE, mrvl_pp2_create)    \
_(MRVL_PP2_DELETE, mrvl_pp2_delete)


#define vl_msg_name_crc_list
#include <marvell/pp2/pp2_all_api_h.h>
#undef vl_msg_name_crc_list

static void
vl_api_mrvl_pp2_create_t_handler (vl_api_mrvl_pp2_create_t * mp)
{
  mrvl_pp2_main_t *pp2 = &mrvl_pp2_main;
  mrvl_pp2_create_if_args_t args = { 0 };
  vl_api_mrvl_pp2_create_reply_t *rmp;
  int rv;

  args.name = format (0, "%s", mp->if_name);
  args.rx_q_sz = ntohs (mp->rx_q_sz);
  args.tx_q_sz = ntohs (mp->tx_q_sz);
  mrvl_pp2_create_if (&args);
  rv = args.rv;
  vec_free (args.name);
  if (args.error)
    {
      clib_error_free (args.error);
    }
  /* *INDENT-OFF* */
  REPLY_MACRO2 (VL_API_MRVL_PP2_CREATE_REPLY + pp2->msg_id_base,
    ({
      rmp->sw_if_index = ntohl (args.sw_if_index);
    }));
  /* *INDENT-ON* */
}

static void *
vl_api_mrvl_pp2_create_t_print (vl_api_mrvl_pp2_create_t * mp, void *handle)
{
  u8 *s;
  s = format (0, "SCRIPT: mrvl_pp2_create ");
  s = format (s, "if_name:%s ", mp->if_name);
  if (mp->rx_q_sz)
    s = format (s, "rx-queue-size:%u ", ntohs (mp->rx_q_sz));
  if (mp->tx_q_sz)
    s = format (s, "tx-queue-size %u ", ntohs (mp->tx_q_sz));

  FINISH;
}

static void
vl_api_mrvl_pp2_delete_t_handler (vl_api_mrvl_pp2_delete_t * mp)
{
  vnet_main_t *vnm = vnet_get_main ();
  vnet_hw_interface_t *hw;
  mrvl_pp2_main_t *pp2 = &mrvl_pp2_main;
  vl_api_mrvl_pp2_delete_reply_t *rmp;
  mrvl_pp2_if_t *dif;
  int rv = 0;
  mp->sw_if_index = ntohl (mp->sw_if_index);
  hw = vnet_get_sup_hw_interface (vnm, mp->sw_if_index);
  if (hw == NULL || mrvl_pp2_device_class.index != hw->dev_class_index)
    {
      rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
      goto reply;
    }

  dif = pool_elt_at_index (pp2->interfaces, hw->dev_instance);

  mrvl_pp2_delete_if (dif);

reply:
  REPLY_MACRO (VL_API_MRVL_PP2_DELETE_REPLY + pp2->msg_id_base);
}

static void *
vl_api_mrvl_pp2_delete_t_print (vl_api_mrvl_pp2_delete_t * mp, void *handle)
{
  u8 *s;

  s = format (0, "SCRIPT: mrvl_pp2_delete ");
  s = format (s, "sw_if_index %d ", ntohl (mp->sw_if_index));

  FINISH;
}


static void
setup_message_id_table (mrvl_pp2_main_t * pp2, api_main_t * am)
{
#define _(id,n,crc) \
  vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id + pp2->msg_id_base);
  foreach_vl_msg_name_crc_pp2;
#undef _
}


/* set up the API message handling tables */
clib_error_t *
mrvl_pp2_plugin_api_hookup (vlib_main_t * vm)
{
  mrvl_pp2_main_t *pp2 = &mrvl_pp2_main;
  api_main_t *am = &api_main;
  u8 *name;

  /* construct the API name */
  name = format (0, "mrvl_pp2_%08x%c", api_version, 0);

  /* ask for a correctly-sized block of API message decode slots */
  pp2->msg_id_base = vl_msg_api_get_msg_ids
    ((char *) name, VL_MSG_FIRST_AVAILABLE);

#define _(N,n)                                                  \
    vl_msg_api_set_handlers((VL_API_##N + pp2->msg_id_base),    \
                           #n,                                  \
                           vl_api_##n##_t_handler,              \
                           vl_noop_handler,                     \
                           vl_api_##n##_t_endian,               \
                           vl_api_##n##_t_print,                \
                           sizeof(vl_api_##n##_t), 1);
  foreach_pp2_plugin_api_msg;
#undef _

  /* set up the (msg_name, crc, message-id) table */
  setup_message_id_table (pp2, am);

  vec_free (name);
  return 0;
}

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