cluster.h 3.5 KB

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  1. /*
  2. * net/tipc/cluster.h: Include file for TIPC cluster management routines
  3. *
  4. * Copyright (c) 2003-2005, Ericsson Research Canada
  5. * Copyright (c) 2005, Wind River Systems
  6. * Copyright (c) 2005-2006, Ericsson AB
  7. * All rights reserved.
  8. *
  9. * Redistribution and use in source and binary forms, with or without
  10. * modification, are permitted provided that the following conditions are met:
  11. *
  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.
  20. *
  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.
  24. *
  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
  29. * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31. * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32. * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33. * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35. * POSSIBILITY OF SUCH DAMAGE.
  36. */
  37. #ifndef _TIPC_CLUSTER_H
  38. #define _TIPC_CLUSTER_H
  39. #include "addr.h"
  40. #include "zone.h"
  41. #define LOWEST_SLAVE 2048u
  42. /**
  43. * struct cluster - TIPC cluster structure
  44. * @addr: network address of cluster
  45. * @owner: pointer to zone that cluster belongs to
  46. * @nodes: array of pointers to all nodes within cluster
  47. * @highest_node: id of highest numbered node within cluster
  48. * @highest_slave: (used for secondary node support)
  49. */
  50. struct cluster {
  51. u32 addr;
  52. struct _zone *owner;
  53. struct node **nodes;
  54. u32 highest_node;
  55. u32 highest_slave;
  56. };
  57. extern struct node **local_nodes;
  58. extern u32 highest_allowed_slave;
  59. extern struct node_map cluster_bcast_nodes;
  60. void cluster_remove_as_router(struct cluster *c_ptr, u32 router);
  61. void cluster_send_ext_routes(struct cluster *c_ptr, u32 dest);
  62. struct node *cluster_select_node(struct cluster *c_ptr, u32 selector);
  63. u32 cluster_select_router(struct cluster *c_ptr, u32 ref);
  64. void cluster_recv_routing_table(struct sk_buff *buf);
  65. struct cluster *cluster_create(u32 addr);
  66. void cluster_delete(struct cluster *c_ptr);
  67. void cluster_attach_node(struct cluster *c_ptr, struct node *n_ptr);
  68. void cluster_send_slave_routes(struct cluster *c_ptr, u32 dest);
  69. void cluster_broadcast(struct sk_buff *buf);
  70. int cluster_init(void);
  71. u32 cluster_next_node(struct cluster *c_ptr, u32 addr);
  72. void cluster_bcast_new_route(struct cluster *c_ptr, u32 dest, u32 lo, u32 hi);
  73. void cluster_send_local_routes(struct cluster *c_ptr, u32 dest);
  74. void cluster_bcast_lost_route(struct cluster *c_ptr, u32 dest, u32 lo, u32 hi);
  75. static inline struct cluster *cluster_find(u32 addr)
  76. {
  77. struct _zone *z_ptr = zone_find(addr);
  78. if (z_ptr)
  79. return z_ptr->clusters[1];
  80. return 0;
  81. }
  82. #endif