bcast.h 3.6 KB

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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. #ifndef _TIPC_BCAST_H
  37. #define _TIPC_BCAST_H
  38. #define MAX_NODES 4096
  39. #define WSIZE 32
  40. /**
  41. * struct tipc_node_map - set of node identifiers
  42. * @count: # of nodes in set
  43. * @map: bitmap of node identifiers that are in the set
  44. */
  45. struct tipc_node_map {
  46. u32 count;
  47. u32 map[MAX_NODES / WSIZE];
  48. };
  49. extern struct tipc_node_map tipc_bcast_nmap;
  50. #define PLSIZE 32
  51. /**
  52. * struct port_list - set of node local destination ports
  53. * @count: # of ports in set (only valid for first entry in list)
  54. * @next: pointer to next entry in list
  55. * @ports: array of port references
  56. */
  57. struct port_list {
  58. int count;
  59. struct port_list *next;
  60. u32 ports[PLSIZE];
  61. };
  62. struct tipc_node;
  63. extern const char tipc_bclink_name[];
  64. void tipc_nmap_add(struct tipc_node_map *nm_ptr, u32 node);
  65. void tipc_nmap_remove(struct tipc_node_map *nm_ptr, u32 node);
  66. /**
  67. * tipc_nmap_equal - test for equality of node maps
  68. */
  69. static inline int tipc_nmap_equal(struct tipc_node_map *nm_a, struct tipc_node_map *nm_b)
  70. {
  71. return !memcmp(nm_a, nm_b, sizeof(*nm_a));
  72. }
  73. void tipc_port_list_add(struct port_list *pl_ptr, u32 port);
  74. void tipc_port_list_free(struct port_list *pl_ptr);
  75. int tipc_bclink_init(void);
  76. void tipc_bclink_stop(void);
  77. struct tipc_node *tipc_bclink_retransmit_to(void);
  78. void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked);
  79. int tipc_bclink_send_msg(struct sk_buff *buf);
  80. void tipc_bclink_recv_pkt(struct sk_buff *buf);
  81. u32 tipc_bclink_get_last_sent(void);
  82. u32 tipc_bclink_acks_missing(struct tipc_node *n_ptr);
  83. void tipc_bclink_check_gap(struct tipc_node *n_ptr, u32 seqno);
  84. int tipc_bclink_stats(char *stats_buf, const u32 buf_size);
  85. int tipc_bclink_reset_stats(void);
  86. int tipc_bclink_set_queue_limits(u32 limit);
  87. void tipc_bcbearer_sort(void);
  88. void tipc_bcbearer_push(void);
  89. #endif