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Kurt Hackel0c83ed82005-12-15 14:31:23 -08001/* -*- mode: c; c-basic-offset: 8; -*-
2 * vim: noexpandtab sw=8 ts=8 sts=0:
3 *
4 * nodemanager.h
5 *
6 * Function prototypes
7 *
8 * Copyright (C) 2004 Oracle. All rights reserved.
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public
12 * License as published by the Free Software Foundation; either
13 * version 2 of the License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public
21 * License along with this program; if not, write to the
22 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 * Boston, MA 021110-1307, USA.
24 *
25 */
26
27#ifndef O2CLUSTER_NODEMANAGER_H
28#define O2CLUSTER_NODEMANAGER_H
29
30#include "ocfs2_nodemanager.h"
31
32/* This totally doesn't belong here. */
33#include <linux/configfs.h>
34#include <linux/rbtree.h>
35
Kurt Hackel0c83ed82005-12-15 14:31:23 -080036struct o2nm_node {
37 spinlock_t nd_lock;
38 struct config_item nd_item;
39 char nd_name[O2NM_MAX_NAME_LEN+1]; /* replace? */
40 __u8 nd_num;
41 /* only one address per node, as attributes, for now. */
42 __be32 nd_ipv4_address;
43 __be16 nd_ipv4_port;
44 struct rb_node nd_ip_node;
45 /* there can be only one local node for now */
46 int nd_local;
47
48 unsigned long nd_set_attributes;
49};
50
Andrew Beekhof296b75e2006-12-04 14:04:53 +010051struct o2nm_cluster {
52 struct config_group cl_group;
53 unsigned cl_has_local:1;
54 u8 cl_local_node;
55 rwlock_t cl_nodes_lock;
56 struct o2nm_node *cl_nodes[O2NM_MAX_NODES];
57 struct rb_root cl_node_ip_tree;
Jeff Mahoneyb5dd8032006-12-04 14:04:54 +010058 unsigned int cl_idle_timeout_ms;
59 unsigned int cl_keepalive_delay_ms;
60 unsigned int cl_reconnect_delay_ms;
Andrew Beekhof296b75e2006-12-04 14:04:53 +010061
62 /* this bitmap is part of a hack for disk bitmap.. will go eventually. - zab */
63 unsigned long cl_nodes_bitmap[BITS_TO_LONGS(O2NM_MAX_NODES)];
64};
65
66extern struct o2nm_cluster *o2nm_single_cluster;
67
Kurt Hackel0c83ed82005-12-15 14:31:23 -080068u8 o2nm_this_node(void);
69
70int o2nm_configured_node_map(unsigned long *map, unsigned bytes);
71struct o2nm_node *o2nm_get_node_by_num(u8 node_num);
72struct o2nm_node *o2nm_get_node_by_ip(__be32 addr);
73void o2nm_node_get(struct o2nm_node *node);
74void o2nm_node_put(struct o2nm_node *node);
75
Joel Becker14829422007-06-14 21:40:49 -070076int o2nm_depend_item(struct config_item *item);
77void o2nm_undepend_item(struct config_item *item);
Joel Becker16c6a4f2007-06-19 11:34:03 -070078int o2nm_depend_this_node(void);
79void o2nm_undepend_this_node(void);
Joel Becker14829422007-06-14 21:40:49 -070080
Kurt Hackel0c83ed82005-12-15 14:31:23 -080081#endif /* O2CLUSTER_NODEMANAGER_H */