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).
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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) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
30 * Use is subject to license terms.
33 * Copyright (c) 2011 Whamcloud, Inc.
36 * This file is part of Lustre, http://www.lustre.org/
37 * Lustre is a trademark of Sun Microsystems, Inc.
40 /* Intramodule declarations for ptlrpc. */
42 #ifndef PTLRPC_INTERNAL_H
43 #define PTLRPC_INTERNAL_H
45 #include "../ldlm/ldlm_internal.h"
47 struct ldlm_namespace;
50 struct ptlrpc_request_set;
51 extern int test_req_buffer_pressure;
54 int ptlrpcd_start(int index, int max, const char *name, struct ptlrpcd_ctl *pc);
57 void ptlrpc_init_xid(void);
60 int ptlrpc_init_portals(void);
61 void ptlrpc_exit_portals(void);
63 void ptlrpc_request_handle_notconn(struct ptlrpc_request *);
64 void lustre_assert_wire_constants(void);
65 int ptlrpc_import_in_recovery(struct obd_import *imp);
66 int ptlrpc_set_import_discon(struct obd_import *imp, __u32 conn_cnt);
67 void ptlrpc_handle_failed_import(struct obd_import *imp);
68 int ptlrpc_replay_next(struct obd_import *imp, int *inflight);
69 void ptlrpc_initiate_recovery(struct obd_import *imp);
71 int lustre_unpack_req_ptlrpc_body(struct ptlrpc_request *req, int offset);
72 int lustre_unpack_rep_ptlrpc_body(struct ptlrpc_request *req, int offset);
75 void ptlrpc_lprocfs_register_service(struct proc_dir_entry *proc_entry,
76 struct ptlrpc_service *svc);
77 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc);
78 void ptlrpc_lprocfs_rpc_sent(struct ptlrpc_request *req, long amount);
79 void ptlrpc_lprocfs_do_request_stat (struct ptlrpc_request *req,
80 long q_usec, long work_usec);
82 #define ptlrpc_lprocfs_register_service(params...) do{}while(0)
83 #define ptlrpc_lprocfs_unregister_service(params...) do{}while(0)
84 #define ptlrpc_lprocfs_rpc_sent(params...) do{}while(0)
85 #define ptlrpc_lprocfs_do_request_stat(params...) do{}while(0)
90 int ptlrpc_expire_one_request(struct ptlrpc_request *req, int async_unlink);
93 void ptlrpc_fill_bulk_md(lnet_md_t *md, struct ptlrpc_bulk_desc *desc);
94 void ptlrpc_add_bulk_page(struct ptlrpc_bulk_desc *desc, cfs_page_t *page,
95 int pageoffset, int len);
98 struct ptlrpc_reply_state *lustre_get_emerg_rs(struct ptlrpc_service *svc);
99 void lustre_put_emerg_rs(struct ptlrpc_reply_state *rs);
102 int ptlrpc_start_pinger(void);
103 int ptlrpc_stop_pinger(void);
104 void ptlrpc_pinger_sending_on_import(struct obd_import *imp);
105 void ptlrpc_pinger_commit_expected(struct obd_import *imp);
106 void ptlrpc_pinger_wake_up(void);
107 void ptlrpc_ping_import_soon(struct obd_import *imp);
109 int ping_evictor_wake(struct obd_export *exp);
111 #define ping_evictor_wake(exp) 1
115 int sptlrpc_null_init(void);
116 void sptlrpc_null_fini(void);
119 int sptlrpc_plain_init(void);
120 void sptlrpc_plain_fini(void);
123 int sptlrpc_enc_pool_init(void);
124 void sptlrpc_enc_pool_fini(void);
125 int sptlrpc_proc_read_enc_pool(char *page, char **start, off_t off, int count,
126 int *eof, void *data);
129 int sptlrpc_lproc_init(void);
130 void sptlrpc_lproc_fini(void);
133 int sptlrpc_gc_init(void);
134 void sptlrpc_gc_fini(void);
137 void sptlrpc_conf_choose_flavor(enum lustre_sec_part from,
138 enum lustre_sec_part to,
139 struct obd_uuid *target,
141 struct sptlrpc_flavor *sf);
142 int sptlrpc_conf_init(void);
143 void sptlrpc_conf_fini(void);
146 int sptlrpc_init(void);
147 void sptlrpc_fini(void);
150 int llog_recov_init(void);
151 void llog_recov_fini(void);
153 static inline int ll_rpc_recoverable_error(int rc)
155 return (rc == -ENOTCONN || rc == -ENODEV);
158 static inline void ptlrpc_reqset_put(struct ptlrpc_request_set *set)
160 if (cfs_atomic_dec_and_test(&set->set_refcount))
163 #endif /* PTLRPC_INTERNAL_H */