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kernel/linux-rt-4.4.41/net/tipc/bcast.h 3.2 KB
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  /*
   * net/tipc/bcast.h: Include file for TIPC broadcast code
   *
   * Copyright (c) 2003-2006, 2014-2015, Ericsson AB
   * Copyright (c) 2005, 2010-2011, Wind River Systems
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. 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.
   * 3. Neither the names of the copyright holders nor the names of its
   *    contributors may be used to endorse or promote products derived from
   *    this software without specific prior written permission.
   *
   * Alternatively, this software may be distributed under the terms of the
   * GNU General Public License ("GPL") version 2 as published by the Free
   * Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef _TIPC_BCAST_H
  #define _TIPC_BCAST_H
  
  #include "core.h"
  
  struct tipc_node;
  struct tipc_msg;
  struct tipc_nl_msg;
  struct tipc_node_map;
  
  int tipc_bcast_init(struct net *net);
  void tipc_bcast_reinit(struct net *net);
  void tipc_bcast_stop(struct net *net);
  void tipc_bcast_add_peer(struct net *net, struct tipc_link *l,
  			 struct sk_buff_head *xmitq);
  void tipc_bcast_remove_peer(struct net *net, struct tipc_link *rcv_bcl);
  void tipc_bcast_inc_bearer_dst_cnt(struct net *net, int bearer_id);
  void tipc_bcast_dec_bearer_dst_cnt(struct net *net, int bearer_id);
  int  tipc_bcast_get_mtu(struct net *net);
  int tipc_bcast_xmit(struct net *net, struct sk_buff_head *list);
  int tipc_bcast_rcv(struct net *net, struct tipc_link *l, struct sk_buff *skb);
  void tipc_bcast_ack_rcv(struct net *net, struct tipc_link *l, u32 acked);
  void tipc_bcast_sync_rcv(struct net *net, struct tipc_link *l,
  			 struct tipc_msg *hdr);
  int tipc_nl_add_bc_link(struct net *net, struct tipc_nl_msg *msg);
  int tipc_nl_bc_link_set(struct net *net, struct nlattr *attrs[]);
  int tipc_bclink_reset_stats(struct net *net);
  
  static inline void tipc_bcast_lock(struct net *net)
  {
  	spin_lock_bh(&tipc_net(net)->bclock);
  }
  
  static inline void tipc_bcast_unlock(struct net *net)
  {
  	spin_unlock_bh(&tipc_net(net)->bclock);
  }
  
  static inline struct tipc_link *tipc_bc_sndlink(struct net *net)
  {
  	return tipc_net(net)->bcl;
  }
  
  #endif