1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #ifndef _MGS_INTERNAL_H
38 #define _MGS_INTERNAL_H
41 # include <linux/fs.h>
43 #include <libcfs/libcfs.h>
44 #include <lustre/lustre_idl.h>
45 #include <lustre_lib.h>
46 #include <lustre_dlm.h>
47 #include <lustre_log.h>
48 #include <lustre_export.h>
51 int class_dentry_readdir(struct obd_device *obd, struct dentry *dir,
52 struct vfsmount *inmnt,
53 cfs_list_t *dentry_list);
55 #define MGSSELF_NAME "_mgs"
57 struct mgs_tgt_srpc_conf {
58 struct mgs_tgt_srpc_conf *mtsc_next;
60 struct sptlrpc_rule_set mtsc_rset;
63 #define INDEX_MAP_SIZE 8192 /* covers indicies to FFFF */
65 #define FSDB_LOG_EMPTY (0) /* missing client log */
66 #define FSDB_OLDLOG14 (1) /* log starts in old (1.4) style */
67 #define FSDB_REVOKING_LOCK (2) /* DLM lock is being revoked */
68 #define FSDB_MGS_SELF (3) /* for '_mgs', used by sptlrpc */
69 #define FSDB_OSCNAME18 (4) /* old 1.8 style OSC naming */
70 #define FSDB_UDESC (5) /* sptlrpc user desc, will be obsolete */
75 cfs_list_t fsdb_list; /* list of databases */
76 cfs_semaphore_t fsdb_sem;
77 void *fsdb_ost_index_map; /* bitmap of used indicies */
78 void *fsdb_mdt_index_map; /* bitmap of used indicies */
80 /* COMPAT_146 these items must be recorded out of the old client log */
81 char *fsdb_clilov; /* COMPAT_146 client lov name */
83 char *fsdb_mdtlov; /* COMPAT_146 mds lov name */
85 char *fsdb_mdc; /* COMPAT_146 mdc name */
87 unsigned long fsdb_flags;
90 /* in-memory copy of the srpc rules, guarded by fsdb_sem */
91 struct sptlrpc_rule_set fsdb_srpc_gen;
92 struct mgs_tgt_srpc_conf *fsdb_srpc_tgt;
95 int mgs_init_fsdb_list(struct obd_device *obd);
96 int mgs_cleanup_fsdb_list(struct obd_device *obd);
97 int mgs_find_or_make_fsdb(struct obd_device *obd, char *name,
99 int mgs_get_fsdb_srpc_from_llog(struct obd_device *obd, struct fs_db *fsdb);
100 int mgs_check_index(struct obd_device *obd, struct mgs_target_info *mti);
101 int mgs_check_failnid(struct obd_device *obd, struct mgs_target_info *mti);
102 int mgs_write_log_target(struct obd_device *obd, struct mgs_target_info *mti,
104 int mgs_upgrade_sv_14(struct obd_device *obd, struct mgs_target_info *mti,
106 int mgs_erase_log(struct obd_device *obd, char *name);
107 int mgs_erase_logs(struct obd_device *obd, char *fsname);
108 int mgs_setparam(struct obd_device *obd, struct lustre_cfg *lcfg, char *fsname);
110 int mgs_pool_cmd(struct obd_device *obd, enum lcfg_command_type cmd,
111 char *poolname, char *fsname, char *ostname);
114 void mgs_revoke_lock(struct obd_device *obd, struct fs_db *fsdb);
117 int mgs_export_stats_init(struct obd_device *obd, struct obd_export *exp,
118 int reconnect, void *localdata);
119 int mgs_client_free(struct obd_export *exp);
120 int mgs_fs_setup(struct obd_device *obd, struct vfsmount *mnt);
121 int mgs_fs_cleanup(struct obd_device *obddev);
123 #define strsuf(buf, suffix) (strcmp((buf)+strlen(buf)-strlen(suffix), (suffix)))
125 int lproc_mgs_setup(struct obd_device *dev);
126 int lproc_mgs_cleanup(struct obd_device *obd);
127 int lproc_mgs_add_live(struct obd_device *obd, struct fs_db *fsdb);
128 int lproc_mgs_del_live(struct obd_device *obd, struct fs_db *fsdb);
129 void lprocfs_mgs_init_vars(struct lprocfs_static_vars *lvars);
131 static inline int lproc_mgs_setup(struct obd_device *dev)
133 static inline int lproc_mgs_cleanup(struct obd_device *obd)
135 static inline int lproc_mgs_add_live(struct obd_device *obd, struct fs_db *fsdb)
137 static inline int lproc_mgs_del_live(struct obd_device *obd, struct fs_db *fsdb)
139 static void lprocfs_mgs_init_vars(struct lprocfs_static_vars *lvars)
141 memset(lvars, 0, sizeof(*lvars));
145 /* mgs/lproc_mgs.c */
147 LPROC_MGS_CONNECT = 0,
148 LPROC_MGS_DISCONNECT,
150 LPROC_MGS_TARGET_REG,
151 LPROC_MGS_TARGET_DEL,
154 void mgs_counter_incr(struct obd_export *exp, int opcode);
155 void mgs_stats_counter_init(struct lprocfs_stats *stats);
157 #endif /* _MGS_INTERNAL_H */