| 1 | /* |
| 2 | * net/tipc/bcast.h: Include file for TIPC broadcast code |
| 3 | * |
| 4 | * Copyright (c) 2003-2006, 2014, 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 | #define TIPC_BCLINK_RESET 1 |
| 43 | |
| 44 | /** |
| 45 | * struct tipc_node_map - set of node identifiers |
| 46 | * @count: # of nodes in set |
| 47 | * @map: bitmap of node identifiers that are in the set |
| 48 | */ |
| 49 | struct tipc_node_map { |
| 50 | u32 count; |
| 51 | u32 map[MAX_NODES / WSIZE]; |
| 52 | }; |
| 53 | |
| 54 | #define PLSIZE 32 |
| 55 | |
| 56 | /** |
| 57 | * struct tipc_port_list - set of node local destination ports |
| 58 | * @count: # of ports in set (only valid for first entry in list) |
| 59 | * @next: pointer to next entry in list |
| 60 | * @ports: array of port references |
| 61 | */ |
| 62 | struct tipc_port_list { |
| 63 | int count; |
| 64 | struct tipc_port_list *next; |
| 65 | u32 ports[PLSIZE]; |
| 66 | }; |
| 67 | |
| 68 | |
| 69 | struct tipc_node; |
| 70 | |
| 71 | extern const char tipc_bclink_name[]; |
| 72 | |
| 73 | /** |
| 74 | * tipc_nmap_equal - test for equality of node maps |
| 75 | */ |
| 76 | static inline int tipc_nmap_equal(struct tipc_node_map *nm_a, |
| 77 | struct tipc_node_map *nm_b) |
| 78 | { |
| 79 | return !memcmp(nm_a, nm_b, sizeof(*nm_a)); |
| 80 | } |
| 81 | |
| 82 | void tipc_port_list_add(struct tipc_port_list *pl_ptr, u32 port); |
| 83 | void tipc_port_list_free(struct tipc_port_list *pl_ptr); |
| 84 | |
| 85 | int tipc_bclink_init(void); |
| 86 | void tipc_bclink_stop(void); |
| 87 | void tipc_bclink_set_flags(unsigned int flags); |
| 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 | void tipc_bclink_rcv(struct sk_buff *buf); |
| 93 | u32 tipc_bclink_get_last_sent(void); |
| 94 | u32 tipc_bclink_acks_missing(struct tipc_node *n_ptr); |
| 95 | void tipc_bclink_update_link_state(struct tipc_node *n_ptr, u32 last_sent); |
| 96 | int tipc_bclink_stats(char *stats_buf, const u32 buf_size); |
| 97 | int tipc_bclink_reset_stats(void); |
| 98 | int tipc_bclink_set_queue_limits(u32 limit); |
| 99 | void tipc_bcbearer_sort(struct tipc_node_map *nm_ptr, u32 node, bool action); |
| 100 | uint tipc_bclink_get_mtu(void); |
| 101 | int tipc_bclink_xmit(struct sk_buff *buf); |
| 102 | void tipc_bclink_wakeup_users(void); |
| 103 | #endif |