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1 | /* |
2 | * net/tipc/bcast.h: Include file for TIPC broadcast code |
3 | * |
4 | * Copyright (c) 2003-2006, Ericsson AB |
5 | * Copyright (c) 2005, 2010-2011, 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_BCAST_H |
38 | #define _TIPC_BCAST_H |
39 | |
40 | #define MAX_NODES 4096 |
41 | #define WSIZE 32 |
42 | |
43 | /** |
44 | * struct tipc_node_map - set of node identifiers |
45 | * @count: # of nodes in set |
46 | * @map: bitmap of node identifiers that are in the set |
47 | */ |
48 | struct tipc_node_map { |
49 | u32 count; |
50 | u32 map[MAX_NODES / WSIZE]; |
51 | }; |
52 | |
53 | #define PLSIZE 32 |
54 | |
55 | /** |
56 | * struct tipc_port_list - set of node local destination ports |
57 | * @count: # of ports in set (only valid for first entry in list) |
58 | * @next: pointer to next entry in list |
59 | * @ports: array of port references |
60 | */ |
61 | struct tipc_port_list { |
62 | int count; |
63 | struct tipc_port_list *next; |
64 | u32 ports[PLSIZE]; |
65 | }; |
66 | |
67 | |
68 | struct tipc_node; |
69 | |
70 | extern const char tipc_bclink_name[]; |
71 | |
72 | void tipc_nmap_add(struct tipc_node_map *nm_ptr, u32 node); |
73 | void tipc_nmap_remove(struct tipc_node_map *nm_ptr, u32 node); |
74 | |
75 | /** |
76 | * tipc_nmap_equal - test for equality of node maps |
77 | */ |
78 | static inline int tipc_nmap_equal(struct tipc_node_map *nm_a, struct tipc_node_map *nm_b) |
79 | { |
80 | return !memcmp(nm_a, nm_b, sizeof(*nm_a)); |
81 | } |
82 | |
83 | void tipc_port_list_add(struct tipc_port_list *pl_ptr, u32 port); |
84 | void tipc_port_list_free(struct tipc_port_list *pl_ptr); |
85 | |
86 | void tipc_bclink_init(void); |
87 | void tipc_bclink_stop(void); |
88 | void tipc_bclink_add_node(u32 addr); |
89 | void tipc_bclink_remove_node(u32 addr); |
90 | struct tipc_node *tipc_bclink_retransmit_to(void); |
91 | void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked); |
92 | int tipc_bclink_send_msg(struct sk_buff *buf); |
93 | void tipc_bclink_recv_pkt(struct sk_buff *buf); |
94 | u32 tipc_bclink_get_last_sent(void); |
95 | u32 tipc_bclink_acks_missing(struct tipc_node *n_ptr); |
96 | void tipc_bclink_update_link_state(struct tipc_node *n_ptr, u32 last_sent); |
97 | int tipc_bclink_stats(char *stats_buf, const u32 buf_size); |
98 | int tipc_bclink_reset_stats(void); |
99 | int tipc_bclink_set_queue_limits(u32 limit); |
100 | void tipc_bcbearer_sort(void); |
101 | |
102 | #endif |
103 |
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