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12 #ifndef O2CLUSTER_NODEMANAGER_H
13 #define O2CLUSTER_NODEMANAGER_H
14
15 #include "ocfs2_nodemanager.h"
16
17
18 #include <linux/configfs.h>
19 #include <linux/rbtree.h>
20
21 enum o2nm_fence_method {
22 O2NM_FENCE_RESET = 0,
23 O2NM_FENCE_PANIC,
24 O2NM_FENCE_METHODS,
25 };
26
27 struct o2nm_node {
28 spinlock_t nd_lock;
29 struct config_item nd_item;
30 char nd_name[O2NM_MAX_NAME_LEN+1];
31 __u8 nd_num;
32
33 __be32 nd_ipv4_address;
34 __be16 nd_ipv4_port;
35 struct rb_node nd_ip_node;
36
37 int nd_local;
38
39 unsigned long nd_set_attributes;
40 };
41
42 struct o2nm_cluster {
43 struct config_group cl_group;
44 unsigned cl_has_local:1;
45 u8 cl_local_node;
46 rwlock_t cl_nodes_lock;
47 struct o2nm_node *cl_nodes[O2NM_MAX_NODES];
48 struct rb_root cl_node_ip_tree;
49 unsigned int cl_idle_timeout_ms;
50 unsigned int cl_keepalive_delay_ms;
51 unsigned int cl_reconnect_delay_ms;
52 enum o2nm_fence_method cl_fence_method;
53
54
55 unsigned long cl_nodes_bitmap[BITS_TO_LONGS(O2NM_MAX_NODES)];
56 };
57
58 extern struct o2nm_cluster *o2nm_single_cluster;
59
60 u8 o2nm_this_node(void);
61
62 int o2nm_configured_node_map(unsigned long *map, unsigned bytes);
63 struct o2nm_node *o2nm_get_node_by_num(u8 node_num);
64 struct o2nm_node *o2nm_get_node_by_ip(__be32 addr);
65 void o2nm_node_get(struct o2nm_node *node);
66 void o2nm_node_put(struct o2nm_node *node);
67
68 int o2nm_depend_item(struct config_item *item);
69 void o2nm_undepend_item(struct config_item *item);
70 int o2nm_depend_this_node(void);
71 void o2nm_undepend_this_node(void);
72
73 #endif