4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
32 #ifndef _MGC_INTERNAL_H
33 #define _MGC_INTERNAL_H
35 #include <libcfs/libcfs.h>
36 #include <lustre_lib.h>
37 #include <lustre_dlm.h>
38 #include <lustre_log.h>
39 #include <lustre_export.h>
40 #ifdef HAVE_SERVER_SUPPORT
41 #include <lustre_nodemap.h>
44 int mgc_tunables_init(struct obd_device *obd);
45 int lprocfs_mgc_rd_ir_state(struct seq_file *m, void *data);
47 int mgc_process_log(struct obd_device *mgc, struct config_llog_data *cld);
49 /* this timeout represents how many seconds MGC should wait before
50 * requeue config and recover lock to the MGS. We need to randomize this
51 * in order to not flood the MGS.
53 #define MGC_TIMEOUT_MIN_SECONDS 5
55 extern unsigned int mgc_requeue_timeout_min;
57 static inline bool cld_is_sptlrpc(struct config_llog_data *cld)
59 return cld->cld_type == MGS_CFG_T_SPTLRPC;
62 static inline bool cld_is_recover(struct config_llog_data *cld)
64 return cld->cld_type == MGS_CFG_T_RECOVER;
67 static inline bool cld_is_nodemap(struct config_llog_data *cld)
69 #ifdef HAVE_SERVER_SUPPORT
70 return cld->cld_type == MGS_CFG_T_NODEMAP;
76 static inline bool cld_is_barrier(struct config_llog_data *cld)
78 #ifdef HAVE_SERVER_SUPPORT
79 return cld->cld_type == MGS_CFG_T_BARRIER;
85 #ifdef HAVE_SERVER_SUPPORT
86 int mgc_set_info_async_server(const struct lu_env *env,
87 struct obd_export *exp,
88 u32 keylen, void *key,
89 u32 vallen, void *val,
90 struct ptlrpc_request_set *set);
91 int mgc_process_nodemap_log(struct obd_device *obd,
92 struct config_llog_data *cld);
93 int mgc_process_server_cfg_log(struct lu_env *env, struct llog_ctxt **ctxt,
94 struct lustre_sb_info *lsi,
95 struct obd_device *mgc,
96 struct config_llog_data *cld,
98 int mgc_process_config_server(struct obd_device *obd, size_t len, void *buf);
99 int mgc_barrier_glimpse_ast(struct ldlm_lock *lock, void *data);
100 #else /* HAVE_SERVER_SUPPORT */
101 #define mgc_barrier_glimpse_ast NULL
102 #endif /* HAVE_SERVER_SUPPORT */
104 /* Not sure where this should go... */
105 /* This is the timeout value for MGS_CONNECT request plus a ping interval, such
106 * that we can have a chance to try the secondary MGS if any.
108 #define MGC_ENQUEUE_LIMIT(obd) (INITIAL_CONNECT_TIMEOUT + \
109 (obd_at_off(obd) ? 0 : obd_get_at_min(obd)) + \
111 #define MGC_TARGET_REG_LIMIT 10
112 #define MGC_TARGET_REG_LIMIT_MAX RECONNECT_DELAY_MAX
113 #define MGC_SEND_PARAM_LIMIT 10
116 CONFIG_READ_NRPAGES_INIT = 1 << (20 - PAGE_SHIFT),
117 CONFIG_READ_NRPAGES = 4
120 #endif /* _MGC_INTERNAL_H */