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
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the names of the copyright holders nor the names of its
18 * contributors may be used to endorse or promote products derived from
19 * this software without specific prior written permission.
21 * Alternatively, this software may be distributed under the terms of the
22 * GNU General Public License ("GPL") version 2 as published by the Free
23 * Software Foundation.
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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35 * POSSIBILITY OF SUCH DAMAGE.
42 #include "node_subscr.h"
46 struct _zone
*zone_create(u32 addr
)
48 struct _zone
*z_ptr
= 0;
51 if (!addr_domain_valid(addr
))
54 z_ptr
= (struct _zone
*)kmalloc(sizeof(*z_ptr
), GFP_ATOMIC
);
56 memset(z_ptr
, 0, sizeof(*z_ptr
));
57 z_num
= tipc_zone(addr
);
58 z_ptr
->addr
= tipc_addr(z_num
, 0, 0);
59 net
.zones
[z_num
] = z_ptr
;
64 void zone_delete(struct _zone
*z_ptr
)
70 for (c_num
= 1; c_num
<= tipc_max_clusters
; c_num
++) {
71 cluster_delete(z_ptr
->clusters
[c_num
]);
76 void zone_attach_cluster(struct _zone
*z_ptr
, struct cluster
*c_ptr
)
78 u32 c_num
= tipc_cluster(c_ptr
->addr
);
81 assert(c_num
<= tipc_max_clusters
);
82 assert(z_ptr
->clusters
[c_num
] == 0);
83 z_ptr
->clusters
[c_num
] = c_ptr
;
86 void zone_remove_as_router(struct _zone
*z_ptr
, u32 router
)
90 for (c_num
= 1; c_num
<= tipc_max_clusters
; c_num
++) {
91 if (z_ptr
->clusters
[c_num
]) {
92 cluster_remove_as_router(z_ptr
->clusters
[c_num
],
98 void zone_send_external_routes(struct _zone
*z_ptr
, u32 dest
)
102 for (c_num
= 1; c_num
<= tipc_max_clusters
; c_num
++) {
103 if (z_ptr
->clusters
[c_num
]) {
104 if (in_own_cluster(z_ptr
->addr
))
106 cluster_send_ext_routes(z_ptr
->clusters
[c_num
], dest
);
111 struct node
*zone_select_remote_node(struct _zone
*z_ptr
, u32 addr
, u32 ref
)
113 struct cluster
*c_ptr
;
119 c_ptr
= z_ptr
->clusters
[tipc_cluster(addr
)];
122 n_ptr
= cluster_select_node(c_ptr
, ref
);
126 /* Links to any other clusters within this zone ? */
127 for (c_num
= 1; c_num
<= tipc_max_clusters
; c_num
++) {
128 c_ptr
= z_ptr
->clusters
[c_num
];
131 n_ptr
= cluster_select_node(c_ptr
, ref
);
138 u32
zone_select_router(struct _zone
*z_ptr
, u32 addr
, u32 ref
)
140 struct cluster
*c_ptr
;
146 c_ptr
= z_ptr
->clusters
[tipc_cluster(addr
)];
147 router
= c_ptr
? cluster_select_router(c_ptr
, ref
) : 0;
151 /* Links to any other clusters within the zone? */
152 for (c_num
= 1; c_num
<= tipc_max_clusters
; c_num
++) {
153 c_ptr
= z_ptr
->clusters
[c_num
];
154 router
= c_ptr
? cluster_select_router(c_ptr
, ref
) : 0;
162 u32
zone_next_node(u32 addr
)
164 struct cluster
*c_ptr
= cluster_find(addr
);
167 return cluster_next_node(c_ptr
, addr
);
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