2 * net/tipc/zone.c: TIPC zone management routines
4 * Copyright (c) 2003-2005, Ericsson Research Canada
5 * Copyright (c) 2005, Wind River Systems
6 * Copyright (c) 2005-2006, Ericsson AB
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38 #include "node_subscr.h"
42 struct _zone *zone_create(u32 addr)
44 struct _zone *z_ptr = 0;
47 if (!addr_domain_valid(addr))
50 z_ptr = (struct _zone *)kmalloc(sizeof(*z_ptr), GFP_ATOMIC);
52 memset(z_ptr, 0, sizeof(*z_ptr));
53 z_num = tipc_zone(addr);
54 z_ptr->addr = tipc_addr(z_num, 0, 0);
55 net.zones[z_num] = z_ptr;
60 void zone_delete(struct _zone *z_ptr)
66 for (c_num = 1; c_num <= tipc_max_clusters; c_num++) {
67 cluster_delete(z_ptr->clusters[c_num]);
72 void zone_attach_cluster(struct _zone *z_ptr, struct cluster *c_ptr)
74 u32 c_num = tipc_cluster(c_ptr->addr);
77 assert(c_num <= tipc_max_clusters);
78 assert(z_ptr->clusters[c_num] == 0);
79 z_ptr->clusters[c_num] = c_ptr;
82 void zone_remove_as_router(struct _zone *z_ptr, u32 router)
86 for (c_num = 1; c_num <= tipc_max_clusters; c_num++) {
87 if (z_ptr->clusters[c_num]) {
88 cluster_remove_as_router(z_ptr->clusters[c_num],
94 void zone_send_external_routes(struct _zone *z_ptr, u32 dest)
98 for (c_num = 1; c_num <= tipc_max_clusters; c_num++) {
99 if (z_ptr->clusters[c_num]) {
100 if (in_own_cluster(z_ptr->addr))
102 cluster_send_ext_routes(z_ptr->clusters[c_num], dest);
107 struct node *zone_select_remote_node(struct _zone *z_ptr, u32 addr, u32 ref)
109 struct cluster *c_ptr;
115 c_ptr = z_ptr->clusters[tipc_cluster(addr)];
118 n_ptr = cluster_select_node(c_ptr, ref);
122 /* Links to any other clusters within this zone ? */
123 for (c_num = 1; c_num <= tipc_max_clusters; c_num++) {
124 c_ptr = z_ptr->clusters[c_num];
127 n_ptr = cluster_select_node(c_ptr, ref);
134 u32 zone_select_router(struct _zone *z_ptr, u32 addr, u32 ref)
136 struct cluster *c_ptr;
142 c_ptr = z_ptr->clusters[tipc_cluster(addr)];
143 router = c_ptr ? cluster_select_router(c_ptr, ref) : 0;
147 /* Links to any other clusters within the zone? */
148 for (c_num = 1; c_num <= tipc_max_clusters; c_num++) {
149 c_ptr = z_ptr->clusters[c_num];
150 router = c_ptr ? cluster_select_router(c_ptr, ref) : 0;
158 u32 zone_next_node(u32 addr)
160 struct cluster *c_ptr = cluster_find(addr);
163 return cluster_next_node(c_ptr, addr);