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kernel/linux-rt-4.4.41/drivers/infiniband/hw/usnic/usnic_transport.h 2.54 KB
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  /*
   * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
   *
   * This software is available to you under a choice of one of two
   * licenses.  You may choose to be licensed under the terms of the GNU
   * General Public License (GPL) Version 2, available from the file
   * COPYING in the main directory of this source tree, or the
   * BSD license below:
   *
   *     Redistribution and use in source and binary forms, with or
   *     without modification, are permitted provided that the following
   *     conditions are met:
   *
   *      - Redistributions of source code must retain the above
   *        copyright notice, this list of conditions and the following
   *        disclaimer.
   *
   *      - Redistributions in binary form must reproduce the above
   *        copyright notice, this list of conditions and the following
   *        disclaimer in the documentation and/or other materials
   *        provided with the distribution.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
   * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   *
   */
  
  #ifndef USNIC_TRANSPORT_H_
  #define USNIC_TRANSPORT_H_
  
  #include "usnic_abi.h"
  
  const char *usnic_transport_to_str(enum usnic_transport_type trans_type);
  /*
   * Returns number of bytes written, excluding null terminator. If
   * nothing was written, the function returns 0.
   */
  int usnic_transport_sock_to_str(char *buf, int buf_sz,
  					struct socket *sock);
  /*
   * Reserve a port. If "port_num" is set, then the function will try
   * to reserve that particular port.
   */
  u16 usnic_transport_rsrv_port(enum usnic_transport_type type, u16 port_num);
  void usnic_transport_unrsrv_port(enum usnic_transport_type type, u16 port_num);
  /*
   * Do a fget on the socket refered to by sock_fd and returns the socket.
   * Socket will not be destroyed before usnic_transport_put_socket has
   * been called.
   */
  struct socket *usnic_transport_get_socket(int sock_fd);
  void usnic_transport_put_socket(struct socket *sock);
  /*
   * Call usnic_transport_get_socket before calling *_sock_get_addr
   */
  int usnic_transport_sock_get_addr(struct socket *sock, int *proto,
  					uint32_t *addr, uint16_t *port);
  int usnic_transport_init(void);
  void usnic_transport_fini(void);
  #endif /* !USNIC_TRANSPORT_H */