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 2008 Sun Microsystems, Inc. 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.
40 #include <lustre/lustre_idl.h>
41 #include <lustre_dlm.h>
42 #include <lprocfs_status.h>
43 #include <class_hash.h>
45 struct mds_client_data;
46 struct mdt_client_data;
47 struct mds_idmap_table;
48 struct mdt_idmap_table;
50 struct lu_export_data {
51 /** Protects led_lcd below */
52 struct semaphore led_lcd_lock;
53 /** Per-client data for each export */
54 struct lsd_client_data *led_lcd;
55 /** Offset of record in last_rcvd file */
57 /** Client index in last_rcvd file */
61 struct mdt_export_data {
62 struct lu_export_data med_led;
63 struct list_head med_open_head;
64 spinlock_t med_open_lock; /* lock med_open_head, mfd_list*/
65 __u64 med_ibits_known;
66 struct semaphore med_idmap_sem;
67 struct lustre_idmap_table *med_idmap;
70 #define med_lcd_lock med_led.led_lcd_lock
71 #define med_lcd med_led.led_lcd
72 #define med_lr_off med_led.led_lr_off
73 #define med_lr_idx med_led.led_lr_idx
77 struct list_head oscc_list;
78 struct obd_device *oscc_obd;
79 obd_id oscc_last_id;//last available pre-created object
80 obd_id oscc_next_id;// what object id to give out next
83 * Limit oscc_grow_count value, can be changed via proc fs
85 int oscc_max_grow_count;
88 cfs_waitq_t oscc_waitq; /* creating procs wait on this */
91 struct ec_export_data { /* echo client */
92 struct list_head eced_locks;
95 /* In-memory access to client data from OST struct */
96 struct filter_export_data {
97 struct lu_export_data fed_led;
98 spinlock_t fed_lock; /**< protects fed_mod_list */
99 long fed_dirty; /* in bytes */
100 long fed_grant; /* in bytes */
101 struct list_head fed_mod_list; /* files being modified */
102 int fed_mod_count;/* items in fed_writing list */
103 long fed_pending; /* bytes just being written */
107 #define fed_lcd_lock fed_led.led_lcd_lock
108 #define fed_lcd fed_led.led_lcd
109 #define fed_lr_off fed_led.led_lr_off
110 #define fed_lr_idx fed_led.led_lr_idx
112 typedef struct nid_stat_uuid {
113 struct list_head ns_uuid_list;
114 struct obd_uuid ns_uuid;
117 typedef struct nid_stat {
119 struct hlist_node nid_hash;
120 struct list_head nid_list;
121 struct list_head nid_uuid_list;
122 struct obd_device *nid_obd;
123 struct proc_dir_entry *nid_proc;
124 struct lprocfs_stats *nid_stats;
125 struct lprocfs_stats *nid_ldlm_stats;
126 struct brw_stats *nid_brw_stats;
127 int nid_exp_ref_count;
131 OBD_OPT_FORCE = 0x0001,
132 OBD_OPT_FAILOVER = 0x0002,
133 OBD_OPT_ABORT_RECOV = 0x0004,
137 struct portals_handle exp_handle;
138 atomic_t exp_refcount;
139 atomic_t exp_rpc_count;
140 struct obd_uuid exp_client_uuid;
141 struct list_head exp_obd_chain;
142 struct hlist_node exp_uuid_hash; /* uuid-export hash*/
143 struct hlist_node exp_nid_hash; /* nid-export hash */
144 /* exp_obd_chain_timed fo ping evictor, protected by obd_dev_lock */
145 struct list_head exp_obd_chain_timed;
146 struct obd_device *exp_obd;
147 struct obd_import *exp_imp_reverse; /* to make RPCs backwards */
148 struct nid_stat *exp_nid_stats;
149 struct lprocfs_stats *exp_md_stats;
150 struct ptlrpc_connection *exp_connection;
152 lustre_hash_t *exp_lock_hash; /* existing lock hash */
153 spinlock_t exp_lock_hash_lock;
154 struct list_head exp_outstanding_replies;
155 struct list_head exp_uncommitted_replies;
156 spinlock_t exp_uncommitted_replies_lock;
157 __u64 exp_last_committed;
158 cfs_time_t exp_last_request_time;
159 struct list_head exp_req_replay_queue;
160 spinlock_t exp_lock; /* protects flags int below */
161 /* ^ protects exp_outstanding_replies too */
162 __u64 exp_connect_flags;
163 enum obd_option exp_flags;
164 unsigned long exp_failed:1,
168 /** VBR: export missed recovery */
170 /** VBR: failed version checking */
172 exp_req_replay_needed:1,
173 exp_lock_replay_needed:1,
177 exp_libclient:1; /* liblustre client? */
178 struct list_head exp_queued_rpc; /* RPC to be handled */
179 /* also protected by exp_lock */
180 enum lustre_sec_part exp_sp_peer;
181 struct sptlrpc_flavor exp_flvr; /* current */
182 struct sptlrpc_flavor exp_flvr_old[2]; /* about-to-expire */
183 cfs_time_t exp_flvr_expire[2]; /* seconds */
186 struct lu_export_data eu_target_data;
187 struct mdt_export_data eu_mdt_data;
188 struct filter_export_data eu_filter_data;
189 struct ec_export_data eu_ec_data;
193 #define exp_target_data u.eu_target_data
194 #define exp_mdt_data u.eu_mdt_data
195 #define exp_filter_data u.eu_filter_data
196 #define exp_ec_data u.eu_ec_data
198 static inline int exp_expired(struct obd_export *exp, cfs_duration_t age)
200 LASSERT(exp->exp_delayed);
201 return cfs_time_before(cfs_time_add(exp->exp_last_request_time, age),
202 cfs_time_current_sec());
205 static inline int exp_connect_cancelset(struct obd_export *exp)
207 LASSERT(exp != NULL);
208 return !!(exp->exp_connect_flags & OBD_CONNECT_CANCELSET);
211 static inline int exp_connect_lru_resize(struct obd_export *exp)
213 LASSERT(exp != NULL);
214 return !!(exp->exp_connect_flags & OBD_CONNECT_LRU_RESIZE);
217 static inline int exp_connect_rmtclient(struct obd_export *exp)
219 LASSERT(exp != NULL);
220 return !!(exp->exp_connect_flags & OBD_CONNECT_RMT_CLIENT);
223 static inline int client_is_remote(struct obd_export *exp)
225 struct obd_import *imp = class_exp2cliimp(exp);
227 return !!(imp->imp_connect_data.ocd_connect_flags &
228 OBD_CONNECT_RMT_CLIENT);
231 static inline int exp_connect_vbr(struct obd_export *exp)
233 LASSERT(exp != NULL);
234 LASSERT(exp->exp_connection);
235 return !!(exp->exp_connect_flags & OBD_CONNECT_VBR);
238 static inline int imp_connect_lru_resize(struct obd_import *imp)
240 struct obd_connect_data *ocd;
242 LASSERT(imp != NULL);
243 ocd = &imp->imp_connect_data;
244 return !!(ocd->ocd_connect_flags & OBD_CONNECT_LRU_RESIZE);
247 extern struct obd_export *class_conn2export(struct lustre_handle *conn);
248 extern struct obd_device *class_conn2obd(struct lustre_handle *conn);
250 #endif /* __EXPORT_H */