cluster.h 3.5 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192
  1. /*
  2. * net/tipc/cluster.h: Include file for TIPC cluster management routines
  3. *
  4. * Copyright (c) 2000-2006, Ericsson AB
  5. * Copyright (c) 2005, 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_CLUSTER_H
  37. #define _TIPC_CLUSTER_H
  38. #include "addr.h"
  39. #include "zone.h"
  40. #define LOWEST_SLAVE 2048u
  41. /**
  42. * struct cluster - TIPC cluster structure
  43. * @addr: network address of cluster
  44. * @owner: pointer to zone that cluster belongs to
  45. * @nodes: array of pointers to all nodes within cluster
  46. * @highest_node: id of highest numbered node within cluster
  47. * @highest_slave: (used for secondary node support)
  48. */
  49. struct cluster {
  50. u32 addr;
  51. struct _zone *owner;
  52. struct node **nodes;
  53. u32 highest_node;
  54. u32 highest_slave;
  55. };
  56. extern struct node **tipc_local_nodes;
  57. extern u32 tipc_highest_allowed_slave;
  58. extern struct node_map tipc_cltr_bcast_nodes;
  59. void tipc_cltr_remove_as_router(struct cluster *c_ptr, u32 router);
  60. void tipc_cltr_send_ext_routes(struct cluster *c_ptr, u32 dest);
  61. struct node *tipc_cltr_select_node(struct cluster *c_ptr, u32 selector);
  62. u32 tipc_cltr_select_router(struct cluster *c_ptr, u32 ref);
  63. void tipc_cltr_recv_routing_table(struct sk_buff *buf);
  64. struct cluster *tipc_cltr_create(u32 addr);
  65. void tipc_cltr_delete(struct cluster *c_ptr);
  66. void tipc_cltr_attach_node(struct cluster *c_ptr, struct node *n_ptr);
  67. void tipc_cltr_send_slave_routes(struct cluster *c_ptr, u32 dest);
  68. void tipc_cltr_broadcast(struct sk_buff *buf);
  69. int tipc_cltr_init(void);
  70. u32 tipc_cltr_next_node(struct cluster *c_ptr, u32 addr);
  71. void tipc_cltr_bcast_new_route(struct cluster *c_ptr, u32 dest, u32 lo, u32 hi);
  72. void tipc_cltr_send_local_routes(struct cluster *c_ptr, u32 dest);
  73. void tipc_cltr_bcast_lost_route(struct cluster *c_ptr, u32 dest, u32 lo, u32 hi);
  74. static inline struct cluster *tipc_cltr_find(u32 addr)
  75. {
  76. struct _zone *z_ptr = tipc_zone_find(addr);
  77. if (z_ptr)
  78. return z_ptr->clusters[1];
  79. return NULL;
  80. }
  81. #endif