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71 lines
1.9 KiB
71 lines
1.9 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* nodemanager.h |
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* |
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* Function prototypes |
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* |
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* Copyright (C) 2004 Oracle. All rights reserved. |
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*/ |
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#ifndef O2CLUSTER_NODEMANAGER_H |
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#define O2CLUSTER_NODEMANAGER_H |
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#include "ocfs2_nodemanager.h" |
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/* This totally doesn't belong here. */ |
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#include <linux/configfs.h> |
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#include <linux/rbtree.h> |
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enum o2nm_fence_method { |
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O2NM_FENCE_RESET = 0, |
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O2NM_FENCE_PANIC, |
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O2NM_FENCE_METHODS, /* Number of fence methods */ |
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}; |
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struct o2nm_node { |
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spinlock_t nd_lock; |
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struct config_item nd_item; |
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char nd_name[O2NM_MAX_NAME_LEN+1]; /* replace? */ |
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__u8 nd_num; |
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/* only one address per node, as attributes, for now. */ |
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__be32 nd_ipv4_address; |
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__be16 nd_ipv4_port; |
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struct rb_node nd_ip_node; |
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/* there can be only one local node for now */ |
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int nd_local; |
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unsigned long nd_set_attributes; |
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}; |
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struct o2nm_cluster { |
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struct config_group cl_group; |
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unsigned cl_has_local:1; |
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u8 cl_local_node; |
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rwlock_t cl_nodes_lock; |
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struct o2nm_node *cl_nodes[O2NM_MAX_NODES]; |
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struct rb_root cl_node_ip_tree; |
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unsigned int cl_idle_timeout_ms; |
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unsigned int cl_keepalive_delay_ms; |
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unsigned int cl_reconnect_delay_ms; |
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enum o2nm_fence_method cl_fence_method; |
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/* this bitmap is part of a hack for disk bitmap.. will go eventually. - zab */ |
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unsigned long cl_nodes_bitmap[BITS_TO_LONGS(O2NM_MAX_NODES)]; |
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}; |
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extern struct o2nm_cluster *o2nm_single_cluster; |
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u8 o2nm_this_node(void); |
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int o2nm_configured_node_map(unsigned long *map, unsigned bytes); |
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struct o2nm_node *o2nm_get_node_by_num(u8 node_num); |
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struct o2nm_node *o2nm_get_node_by_ip(__be32 addr); |
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void o2nm_node_get(struct o2nm_node *node); |
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void o2nm_node_put(struct o2nm_node *node); |
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int o2nm_depend_item(struct config_item *item); |
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void o2nm_undepend_item(struct config_item *item); |
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int o2nm_depend_this_node(void); |
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void o2nm_undepend_this_node(void); |
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#endif /* O2CLUSTER_NODEMANAGER_H */
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