1/* 2 * net/tipc/cluster.h: Include file for TIPC cluster management routines 3 * 4 * Copyright (c) 2000-2006, Ericsson AB 5 * Copyright (c) 2005, Wind River Systems 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the names of the copyright holders nor the names of its 17 * contributors may be used to endorse or promote products derived from 18 * this software without specific prior written permission. 19 * 20 * Alternatively, this software may be distributed under the terms of the 21 * GNU General Public License ("GPL") version 2 as published by the Free 22 * Software Foundation. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 * POSSIBILITY OF SUCH DAMAGE. 35 */ 36 37#ifndef _TIPC_CLUSTER_H 38#define _TIPC_CLUSTER_H 39 40#include "addr.h" 41#include "zone.h" 42 43#define LOWEST_SLAVE 2048u 44 45/** 46 * struct cluster - TIPC cluster structure 47 * @addr: network address of cluster 48 * @owner: pointer to zone that cluster belongs to 49 * @nodes: array of pointers to all nodes within cluster 50 * @highest_node: id of highest numbered node within cluster 51 * @highest_slave: (used for secondary node support) 52 */ 53 54struct cluster { 55 u32 addr; 56 struct _zone *owner; 57 struct tipc_node **nodes; 58 u32 highest_node; 59 u32 highest_slave; 60}; 61 62 63extern struct tipc_node **tipc_local_nodes; 64extern u32 tipc_highest_allowed_slave; 65extern struct tipc_node_map tipc_cltr_bcast_nodes; 66 67void tipc_cltr_remove_as_router(struct cluster *c_ptr, u32 router); 68void tipc_cltr_send_ext_routes(struct cluster *c_ptr, u32 dest); 69struct tipc_node *tipc_cltr_select_node(struct cluster *c_ptr, u32 selector); 70u32 tipc_cltr_select_router(struct cluster *c_ptr, u32 ref); 71void tipc_cltr_recv_routing_table(struct sk_buff *buf); 72struct cluster *tipc_cltr_create(u32 addr); 73void tipc_cltr_delete(struct cluster *c_ptr); 74void tipc_cltr_attach_node(struct cluster *c_ptr, struct tipc_node *n_ptr); 75void tipc_cltr_send_slave_routes(struct cluster *c_ptr, u32 dest); 76void tipc_cltr_broadcast(struct sk_buff *buf); 77int tipc_cltr_init(void); 78u32 tipc_cltr_next_node(struct cluster *c_ptr, u32 addr); 79void tipc_cltr_bcast_new_route(struct cluster *c_ptr, u32 dest, u32 lo, u32 hi); 80void tipc_cltr_send_local_routes(struct cluster *c_ptr, u32 dest); 81void tipc_cltr_bcast_lost_route(struct cluster *c_ptr, u32 dest, u32 lo, u32 hi); 82 83static inline struct cluster *tipc_cltr_find(u32 addr) 84{ 85 struct _zone *z_ptr = tipc_zone_find(addr); 86 87 if (z_ptr) 88 return z_ptr->clusters[1]; 89 return NULL; 90} 91 92#endif 93