memif.api

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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.
 */

option version = "2.0.0";

/** \brief Create or remove named socket file for memif interfaces
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - 0 = remove, 1 = add association
    @param socket_id - non-0 32-bit integer used to identify a socket file
    @param socket_filename - filename of the socket to be used for connection
           establishment; id 0 always maps to default "/var/vpp/memif.sock";
           no socket filename needed when is_add == 0.
*/
autoreply define memif_socket_filename_add_del
{
  u32 client_index;
  u32 context;
  u8 is_add;            /* 0 = remove, 1 = add association */
  u32 socket_id;        /* unique non-0 id for given socket file name */
  u8 socket_filename[128];      /* NUL terminated filename */
};

/** \brief Create memory interface
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param role - role of the interface in the connection (master/slave)
    @param mode - interface mode
    @param rx_queues - number of rx queues (only valid for slave)
    @param tx_queues - number of tx queues (only valid for slave)
    @param id - 32bit integer used to authenticate and match opposite sides
           of the connection
    @param socket_id - socket filename id to be used for connection
           establishment
    @param ring_size - the number of entries of RX/TX rings
    @param buffer_size - size of the buffer allocated for each ring entry
    @param hw_addr - interface MAC address
*/
define memif_create
{
  u32 client_index;
  u32 context;

  u8 role; /* 0 = master, 1 = slave */
  u8 mode; /* 0 = ethernet, 1 = ip, 2 = punt/inject */
  u8 rx_queues; /* optional, default is 1 */
  u8 tx_queues; /* optional, default is 1 */
  u32 id; /* optional, default is 0 */
  u32 socket_id; /* optional, default is 0, "/var/vpp/memif.sock" */
  u8 secret[24]; /* optional, default is "" */
  u32 ring_size; /* optional, default is 1024 entries, must be power of 2 */
  u16 buffer_size; /* optional, default is 2048 bytes */
  u8 hw_addr[6]; /* optional, randomly generated if not defined */
};

/** \brief Create memory interface response
    @param context - sender context, to match reply w/ request
    @param retval - return value for request
    @param sw_if_index - software index of the newly created interface
*/
define memif_create_reply
{
  u32 context;
  i32 retval;
  u32 sw_if_index;
};

/** \brief Delete memory interface
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param sw_if_index - software index of the interface to delete
*/
autoreply define memif_delete
{
  u32 client_index;
  u32 context;

  u32 sw_if_index;
};

/** \brief Memory interface details structure
    @param context - sender context, to match reply w/ request
    @param socket_id - u32 used to identify the given socket filename
    @param socket_filename - correpsonding NUL terminated socket filename
*/
define memif_socket_filename_details
{
  u32 context;
  u32 socket_id;
  u8 socket_filename[128];
};

/** \brief Dump the table of socket ids and corresponding filenames
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define memif_socket_filename_dump
{
  u32 client_index;
  u32 context;
};

/** \brief Memory interface details structure
    @param context - sender context, to match reply w/ request (memif_dump)
    @param sw_if_index - index of the interface
    @param if_name - name of the interface
    @param hw_addr - interface MAC address
    @param id - id associated with the interface
    @param role - role of the interface in the connection (master/slave)
    @param mode - interface mode
    @param socket_id - id of the socket filename used by this interface
           to establish new connections
    @param ring_size - the number of entries of RX/TX rings
    @param buffer_size - size of the buffer allocated for each ring entry
    @param admin_up_down - interface administrative status
    @param link_up_down - interface link status

*/
define memif_details
{
  u32 context;

  u32 sw_if_index;
  u8 if_name[64];
  u8 hw_addr[6];

  /* memif specific parameters */
  u32 id;
  u8 role; /* 0 = master, 1 = slave */
  u8 mode; /* 0 = ethernet, 1 = ip, 2 = punt/inject */
  u32 socket_id;
  u32 ring_size;
  u16 buffer_size; /* optional, default is 2048 bytes */

  /* 1 = up, 0 = down */
  u8 admin_up_down;
  u8 link_up_down;
};

/** \brief Dump all memory interfaces
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define memif_dump
{
  u32 client_index;
  u32 context;
};

/*
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */