LXR linux/drivers/infiniband/hw/usnic/usnic

   1/*
   2 * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
   3 *
   4 * This software is available to you under a choice of one of two
   5 * licenses.  You may choose to be licensed under the terms of the GNU
   6 * General Public License (GPL) Version 2, available from the file
   7 * COPYING in the main directory of this source tree, or the
   8 * BSD license below:
   9 *
  10 *     Redistribution and use in source and binary forms, with or
  11 *     without modification, are permitted provided that the following
  12 *     conditions are met:
  13 *
  14 *      - Redistributions of source code must retain the above
  15 *        copyright notice, this list of conditions and the following
  16 *        disclaimer.
  17 *
  18 *      - Redistributions in binary form must reproduce the above
  19 *        copyright notice, this list of conditions and the following
  20 *        disclaimer in the documentation and/or other materials
  21 *        provided with the distribution.
  22 *
  23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30 * SOFTWARE.
  31 *
  32 */
  33
  34#ifndef USNIC_TRANSPORT_H_
  35#define USNIC_TRANSPORT_H_
  36
  37#include "usnic_abi.h"
  38
  39const char *usnic_transport_to_str(enum usnic_transport_type trans_type);
  40/*
  41 * Returns number of bytes written, excluding null terminator. If
  42 * nothing was written, the function returns 0.
  43 */
  44int usnic_transport_sock_to_str(char *buf, int buf_sz,
  45                                        struct socket *sock);
  46/*
  47 * Reserve a port. If "port_num" is set, then the function will try
  48 * to reserve that particular port.
  49 */
  50u16 usnic_transport_rsrv_port(enum usnic_transport_type type, u16 port_num);
  51void usnic_transport_unrsrv_port(enum usnic_transport_type type, u16 port_num);
  52/*
  53 * Do a fget on the socket refered to by sock_fd and returns the socket.
  54 * Socket will not be destroyed before usnic_transport_put_socket has
  55 * been called.
  56 */
  57struct socket *usnic_transport_get_socket(int sock_fd);
  58void usnic_transport_put_socket(struct socket *sock);
  59/*
  60 * Call usnic_transport_get_socket before calling *_sock_get_addr
  61 */
  62int usnic_transport_sock_get_addr(struct socket *sock, int *proto,
  63                                        uint32_t *addr, uint16_t *port);
  64int usnic_transport_init(void);
  65void usnic_transport_fini(void);
  66#endif /* !USNIC_TRANSPORT_H */
  67