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[fs/lustre-release.git] / lustre / include / obd_support.h
1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2  * vim:expandtab:shiftwidth=8:tabstop=8:
3  *
4  * GPL HEADER START
5  *
6  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
7  *
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.
11  *
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).
17  *
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
21  *
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
24  * have any questions.
25  *
26  * GPL HEADER END
27  */
28 /*
29  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
30  * Use is subject to license terms.
31  *
32  * Copyright (c) 2011, 2012, Whamcloud, Inc.
33  */
34 /*
35  * This file is part of Lustre, http://www.lustre.org/
36  * Lustre is a trademark of Sun Microsystems, Inc.
37  */
38
39 #ifndef _OBD_SUPPORT
40 #define _OBD_SUPPORT
41
42 #include <libcfs/libcfs.h>
43 #include <lvfs.h>
44 #include <lprocfs_status.h>
45
46 #if defined(__linux__)
47 #include <linux/obd_support.h>
48 #elif defined(__APPLE__)
49 #include <darwin/obd_support.h>
50 #elif defined(__WINNT__)
51 #include <winnt/obd_support.h>
52 #else
53 #error Unsupported operating system.
54 #endif
55
56 /* global variables */
57 extern struct lprocfs_stats *obd_memory;
58 enum {
59         OBD_MEMORY_STAT = 0,
60         OBD_MEMORY_PAGES_STAT = 1,
61         OBD_STATS_NUM,
62 };
63
64 extern unsigned int obd_debug_peer_on_timeout;
65 extern unsigned int obd_dump_on_timeout;
66 extern unsigned int obd_dump_on_eviction;
67 /* obd_timeout should only be used for recovery, not for
68    networking / disk / timings affected by load (use Adaptive Timeouts) */
69 extern unsigned int obd_timeout;          /* seconds */
70 extern unsigned int ldlm_timeout;         /* seconds */
71 extern unsigned int at_min;
72 extern unsigned int at_max;
73 extern unsigned int at_history;
74 extern int at_early_margin;
75 extern int at_extra;
76 extern unsigned int obd_sync_filter;
77 extern unsigned int obd_max_dirty_pages;
78 extern cfs_atomic_t obd_dirty_pages;
79 extern cfs_atomic_t obd_dirty_transit_pages;
80 extern unsigned int obd_alloc_fail_rate;
81
82 /* lvfs.c */
83 int obd_alloc_fail(const void *ptr, const char *name, const char *type,
84                    size_t size, const char *file, int line);
85
86 /* Some hash init argument constants */
87 #define HASH_POOLS_BKT_BITS 3
88 #define HASH_POOLS_CUR_BITS 3
89 #define HASH_POOLS_MAX_BITS 7
90 #define HASH_UUID_BKT_BITS 5
91 #define HASH_UUID_CUR_BITS 7
92 #define HASH_UUID_MAX_BITS 12
93 #define HASH_NID_BKT_BITS 5
94 #define HASH_NID_CUR_BITS 7
95 #define HASH_NID_MAX_BITS 12
96 #define HASH_NID_STATS_BKT_BITS 5
97 #define HASH_NID_STATS_CUR_BITS 7
98 #define HASH_NID_STATS_MAX_BITS 12
99 #define HASH_LQS_BKT_BITS 5
100 #define HASH_LQS_CUR_BITS 7
101 #define HASH_LQS_MAX_BITS 12
102 #define HASH_CONN_BKT_BITS 5
103 #define HASH_CONN_CUR_BITS 5
104 #define HASH_CONN_MAX_BITS 15
105 #define HASH_EXP_LOCK_BKT_BITS  5
106 #define HASH_EXP_LOCK_CUR_BITS  7
107 #define HASH_EXP_LOCK_MAX_BITS  16
108 #define HASH_CL_ENV_BKT_BITS    5
109 #define HASH_CL_ENV_BITS        10
110
111 /* Timeout definitions */
112 #define OBD_TIMEOUT_DEFAULT             100
113 #define LDLM_TIMEOUT_DEFAULT            20
114 #define MDS_LDLM_TIMEOUT_DEFAULT        6
115 /* Time to wait for all clients to reconnect during recovery (hard limit) */
116 #define OBD_RECOVERY_TIME_HARD          (obd_timeout * 9)
117 /* Time to wait for all clients to reconnect during recovery (soft limit) */
118 /* Should be very conservative; must catch the first reconnect after reboot */
119 #define OBD_RECOVERY_TIME_SOFT          (obd_timeout * 3)
120 /* Change recovery-small 26b time if you change this */
121 #define PING_INTERVAL max(obd_timeout / 4, 1U)
122 /* a bit more than maximal journal commit time in seconds */
123 #define PING_INTERVAL_SHORT min(PING_INTERVAL, 7U)
124 /* Client may skip 1 ping; we must wait at least 2.5. But for multiple
125  * failover targets the client only pings one server at a time, and pings
126  * can be lost on a loaded network. Since eviction has serious consequences,
127  * and there's no urgent need to evict a client just because it's idle, we
128  * should be very conservative here. */
129 #define PING_EVICT_TIMEOUT (PING_INTERVAL * 6)
130 #define DISK_TIMEOUT 50          /* Beyond this we warn about disk speed */
131 #define CONNECTION_SWITCH_MIN 5U /* Connection switching rate limiter */
132  /* Max connect interval for nonresponsive servers; ~50s to avoid building up
133     connect requests in the LND queues, but within obd_timeout so we don't
134     miss the recovery window */
135 #define CONNECTION_SWITCH_MAX min(50U, max(CONNECTION_SWITCH_MIN,obd_timeout))
136 #define CONNECTION_SWITCH_INC 5  /* Connection timeout backoff */
137 #ifndef CRAY_XT3
138 /* In general this should be low to have quick detection of a system
139    running on a backup server. (If it's too low, import_select_connection
140    will increase the timeout anyhow.)  */
141 #define INITIAL_CONNECT_TIMEOUT max(CONNECTION_SWITCH_MIN,obd_timeout/20)
142 #else
143 /* ...but for very large systems (e.g. CRAY) we need to keep the initial
144    connect t.o. high (bz 10803), because they will nearly ALWAYS be doing the
145    connects for the first time (clients "reboot" after every process, so no
146    chance to generate adaptive timeout data. */
147 #define INITIAL_CONNECT_TIMEOUT max(CONNECTION_SWITCH_MIN,obd_timeout/2)
148 #endif
149 /* The max delay between connects is SWITCH_MAX + SWITCH_INC + INITIAL */
150 #define RECONNECT_DELAY_MAX (CONNECTION_SWITCH_MAX + CONNECTION_SWITCH_INC + \
151                              INITIAL_CONNECT_TIMEOUT)
152 /* The min time a target should wait for clients to reconnect in recovery */
153 #define OBD_RECOVERY_TIME_MIN    (2*RECONNECT_DELAY_MAX)
154 #define OBD_IR_FACTOR_MIN         1
155 #define OBD_IR_FACTOR_MAX         10
156 #define OBD_IR_FACTOR_DEFAULT    (OBD_IR_FACTOR_MAX/2)
157 /* default timeout for the MGS to become IR_FULL */
158 #define OBD_IR_MGS_TIMEOUT       (4*obd_timeout)
159 #define LONG_UNLINK 300          /* Unlink should happen before now */
160
161 /**
162  * Time interval of shrink, if the client is "idle" more than this interval,
163  * then the ll_grant thread will return the requested grant space to filter
164  */
165 #define GRANT_SHRINK_INTERVAL            1200/*20 minutes*/
166
167 #define OBD_FAIL_MDS                     0x100
168 #define OBD_FAIL_MDS_HANDLE_UNPACK       0x101
169 #define OBD_FAIL_MDS_GETATTR_NET         0x102
170 #define OBD_FAIL_MDS_GETATTR_PACK        0x103
171 #define OBD_FAIL_MDS_READPAGE_NET        0x104
172 #define OBD_FAIL_MDS_READPAGE_PACK       0x105
173 #define OBD_FAIL_MDS_SENDPAGE            0x106
174 #define OBD_FAIL_MDS_REINT_NET           0x107
175 #define OBD_FAIL_MDS_REINT_UNPACK        0x108
176 #define OBD_FAIL_MDS_REINT_SETATTR       0x109
177 #define OBD_FAIL_MDS_REINT_SETATTR_WRITE 0x10a
178 #define OBD_FAIL_MDS_REINT_CREATE        0x10b
179 #define OBD_FAIL_MDS_REINT_CREATE_WRITE  0x10c
180 #define OBD_FAIL_MDS_REINT_UNLINK        0x10d
181 #define OBD_FAIL_MDS_REINT_UNLINK_WRITE  0x10e
182 #define OBD_FAIL_MDS_REINT_LINK          0x10f
183 #define OBD_FAIL_MDS_REINT_LINK_WRITE    0x110
184 #define OBD_FAIL_MDS_REINT_RENAME        0x111
185 #define OBD_FAIL_MDS_REINT_RENAME_WRITE  0x112
186 #define OBD_FAIL_MDS_OPEN_NET            0x113
187 #define OBD_FAIL_MDS_OPEN_PACK           0x114
188 #define OBD_FAIL_MDS_CLOSE_NET           0x115
189 #define OBD_FAIL_MDS_CLOSE_PACK          0x116
190 #define OBD_FAIL_MDS_CONNECT_NET         0x117
191 #define OBD_FAIL_MDS_CONNECT_PACK        0x118
192 #define OBD_FAIL_MDS_REINT_NET_REP       0x119
193 #define OBD_FAIL_MDS_DISCONNECT_NET      0x11a
194 #define OBD_FAIL_MDS_GETSTATUS_NET       0x11b
195 #define OBD_FAIL_MDS_GETSTATUS_PACK      0x11c
196 #define OBD_FAIL_MDS_STATFS_PACK         0x11d
197 #define OBD_FAIL_MDS_STATFS_NET          0x11e
198 #define OBD_FAIL_MDS_GETATTR_NAME_NET    0x11f
199 #define OBD_FAIL_MDS_PIN_NET             0x120
200 #define OBD_FAIL_MDS_UNPIN_NET           0x121
201 #define OBD_FAIL_MDS_ALL_REPLY_NET       0x122
202 #define OBD_FAIL_MDS_ALL_REQUEST_NET     0x123
203 #define OBD_FAIL_MDS_SYNC_NET            0x124
204 #define OBD_FAIL_MDS_SYNC_PACK           0x125
205 #define OBD_FAIL_MDS_DONE_WRITING_NET    0x126
206 #define OBD_FAIL_MDS_DONE_WRITING_PACK   0x127
207 #define OBD_FAIL_MDS_ALLOC_OBDO          0x128
208 #define OBD_FAIL_MDS_PAUSE_OPEN          0x129
209 #define OBD_FAIL_MDS_STATFS_LCW_SLEEP    0x12a
210 #define OBD_FAIL_MDS_OPEN_CREATE         0x12b
211 #define OBD_FAIL_MDS_OST_SETATTR         0x12c
212 #define OBD_FAIL_MDS_QUOTACHECK_NET      0x12d
213 #define OBD_FAIL_MDS_QUOTACTL_NET        0x12e
214 #define OBD_FAIL_MDS_CLIENT_ADD          0x12f
215 #define OBD_FAIL_MDS_GETXATTR_NET        0x130
216 #define OBD_FAIL_MDS_GETXATTR_PACK       0x131
217 #define OBD_FAIL_MDS_SETXATTR_NET        0x132
218 #define OBD_FAIL_MDS_SETXATTR            0x133
219 #define OBD_FAIL_MDS_SETXATTR_WRITE      0x134
220 #define OBD_FAIL_MDS_FS_SETUP            0x135
221 #define OBD_FAIL_MDS_RESEND              0x136
222 #define OBD_FAIL_MDS_LLOG_CREATE_FAILED  0x137
223 #define OBD_FAIL_MDS_LOV_SYNC_RACE       0x138
224 #define OBD_FAIL_MDS_OSC_PRECREATE       0x139
225 #define OBD_FAIL_MDS_LLOG_SYNC_TIMEOUT   0x13a
226 #define OBD_FAIL_MDS_CLOSE_NET_REP       0x13b
227 #define OBD_FAIL_MDS_BLOCK_QUOTA_REQ     0x13c
228 #define OBD_FAIL_MDS_DROP_QUOTA_REQ      0x13d
229 #define OBD_FAIL_MDS_REMOVE_COMMON_EA    0x13e
230 #define OBD_FAIL_MDS_ALLOW_COMMON_EA_SETTING   0x13f
231 #define OBD_FAIL_MDS_FAIL_LOV_LOG_ADD    0x140
232 #define OBD_FAIL_MDS_LOV_PREP_CREATE     0x141
233 #define OBD_FAIL_MDS_REINT_DELAY         0x142
234 #define OBD_FAIL_MDS_READLINK_EPROTO     0x143
235 #define OBD_FAIL_MDS_OPEN_WAIT_CREATE    0x144
236 #define OBD_FAIL_MDS_PDO_LOCK            0x145
237 #define OBD_FAIL_MDS_PDO_LOCK2           0x146
238 #define OBD_FAIL_MDS_OSC_CREATE_FAIL     0x147
239
240 /* CMD */
241 #define OBD_FAIL_MDS_IS_SUBDIR_NET       0x180
242 #define OBD_FAIL_MDS_IS_SUBDIR_PACK      0x181
243 #define OBD_FAIL_MDS_SET_INFO_NET        0x182
244 #define OBD_FAIL_MDS_WRITEPAGE_NET       0x183
245 #define OBD_FAIL_MDS_WRITEPAGE_PACK      0x184
246 #define OBD_FAIL_MDS_RECOVERY_ACCEPTS_GAPS 0x185
247 #define OBD_FAIL_MDS_GET_INFO_NET        0x186
248
249 #define OBD_FAIL_OST                     0x200
250 #define OBD_FAIL_OST_CONNECT_NET         0x201
251 #define OBD_FAIL_OST_DISCONNECT_NET      0x202
252 #define OBD_FAIL_OST_GET_INFO_NET        0x203
253 #define OBD_FAIL_OST_CREATE_NET          0x204
254 #define OBD_FAIL_OST_DESTROY_NET         0x205
255 #define OBD_FAIL_OST_GETATTR_NET         0x206
256 #define OBD_FAIL_OST_SETATTR_NET         0x207
257 #define OBD_FAIL_OST_OPEN_NET            0x208
258 #define OBD_FAIL_OST_CLOSE_NET           0x209
259 #define OBD_FAIL_OST_BRW_NET             0x20a
260 #define OBD_FAIL_OST_PUNCH_NET           0x20b
261 #define OBD_FAIL_OST_STATFS_NET          0x20c
262 #define OBD_FAIL_OST_HANDLE_UNPACK       0x20d
263 #define OBD_FAIL_OST_BRW_WRITE_BULK      0x20e
264 #define OBD_FAIL_OST_BRW_READ_BULK       0x20f
265 #define OBD_FAIL_OST_SYNC_NET            0x210
266 #define OBD_FAIL_OST_ALL_REPLY_NET       0x211
267 #define OBD_FAIL_OST_ALL_REQUEST_NET     0x212
268 #define OBD_FAIL_OST_LDLM_REPLY_NET      0x213
269 #define OBD_FAIL_OST_BRW_PAUSE_BULK      0x214
270 #define OBD_FAIL_OST_ENOSPC              0x215
271 #define OBD_FAIL_OST_EROFS               0x216
272 #define OBD_FAIL_OST_ENOENT              0x217
273 #define OBD_FAIL_OST_QUOTACHECK_NET      0x218
274 #define OBD_FAIL_OST_QUOTACTL_NET        0x219
275 #define OBD_FAIL_OST_CHECKSUM_RECEIVE    0x21a
276 #define OBD_FAIL_OST_CHECKSUM_SEND       0x21b
277 #define OBD_FAIL_OST_BRW_SIZE            0x21c
278 #define OBD_FAIL_OST_DROP_REQ            0x21d
279 #define OBD_FAIL_OST_SETATTR_CREDITS     0x21e
280 #define OBD_FAIL_OST_HOLD_WRITE_RPC      0x21f
281 #define OBD_FAIL_OST_BRW_WRITE_BULK2     0x220
282 #define OBD_FAIL_OST_LLOG_RECOVERY_TIMEOUT 0x221
283 #define OBD_FAIL_OST_CANCEL_COOKIE_TIMEOUT 0x222
284 #define OBD_FAIL_OST_PAUSE_CREATE        0x223
285 #define OBD_FAIL_OST_BRW_PAUSE_PACK      0x224
286 #define OBD_FAIL_OST_CONNECT_NET2        0x225
287 #define OBD_FAIL_OST_NOMEM               0x226
288 #define OBD_FAIL_OST_BRW_PAUSE_BULK2     0x227
289 #define OBD_FAIL_OST_MAPBLK_ENOSPC       0x228
290 #define OBD_FAIL_OST_ENOINO              0x229
291 #define OBD_FAIL_OST_DQACQ_NET           0x230
292
293 #define OBD_FAIL_LDLM                    0x300
294 #define OBD_FAIL_LDLM_NAMESPACE_NEW      0x301
295 #define OBD_FAIL_LDLM_ENQUEUE            0x302
296 #define OBD_FAIL_LDLM_CONVERT            0x303
297 #define OBD_FAIL_LDLM_CANCEL             0x304
298 #define OBD_FAIL_LDLM_BL_CALLBACK        0x305
299 #define OBD_FAIL_LDLM_CP_CALLBACK        0x306
300 #define OBD_FAIL_LDLM_GL_CALLBACK        0x307
301 #define OBD_FAIL_LDLM_ENQUEUE_EXTENT_ERR 0x308
302 #define OBD_FAIL_LDLM_ENQUEUE_INTENT_ERR 0x309
303 #define OBD_FAIL_LDLM_CREATE_RESOURCE    0x30a
304 #define OBD_FAIL_LDLM_ENQUEUE_BLOCKED    0x30b
305 #define OBD_FAIL_LDLM_REPLY              0x30c
306 #define OBD_FAIL_LDLM_RECOV_CLIENTS      0x30d
307 #define OBD_FAIL_LDLM_ENQUEUE_OLD_EXPORT 0x30e
308 #define OBD_FAIL_LDLM_GLIMPSE            0x30f
309 #define OBD_FAIL_LDLM_CANCEL_RACE        0x310
310 #define OBD_FAIL_LDLM_CANCEL_EVICT_RACE  0x311
311 #define OBD_FAIL_LDLM_PAUSE_CANCEL       0x312
312 #define OBD_FAIL_LDLM_CLOSE_THREAD       0x313
313 #define OBD_FAIL_LDLM_CANCEL_BL_CB_RACE  0x314
314 #define OBD_FAIL_LDLM_CP_CB_WAIT         0x315
315 #define OBD_FAIL_LDLM_OST_FAIL_RACE      0x316
316 #define OBD_FAIL_LDLM_INTR_CP_AST        0x317
317 #define OBD_FAIL_LDLM_CP_BL_RACE         0x318
318 #define OBD_FAIL_LDLM_NEW_LOCK           0x319
319 #define OBD_FAIL_LDLM_AGL_DELAY          0x31a
320 #define OBD_FAIL_LDLM_AGL_NOLOCK         0x31b
321
322 /* LOCKLESS IO */
323 #define OBD_FAIL_LDLM_SET_CONTENTION     0x385
324
325 #define OBD_FAIL_OSC                     0x400
326 #define OBD_FAIL_OSC_BRW_READ_BULK       0x401
327 #define OBD_FAIL_OSC_BRW_WRITE_BULK      0x402
328 #define OBD_FAIL_OSC_LOCK_BL_AST         0x403
329 #define OBD_FAIL_OSC_LOCK_CP_AST         0x404
330 #define OBD_FAIL_OSC_MATCH               0x405
331 #define OBD_FAIL_OSC_BRW_PREP_REQ        0x406
332 #define OBD_FAIL_OSC_SHUTDOWN            0x407
333 #define OBD_FAIL_OSC_CHECKSUM_RECEIVE    0x408
334 #define OBD_FAIL_OSC_CHECKSUM_SEND       0x409
335 #define OBD_FAIL_OSC_BRW_PREP_REQ2       0x40a
336 #define OBD_FAIL_OSC_CONNECT_CKSUM       0x40b
337 #define OBD_FAIL_OSC_CKSUM_ADLER_ONLY    0x40c
338 #define OBD_FAIL_OSC_DIO_PAUSE           0x40d
339 #define OBD_FAIL_OSC_OBJECT_CONTENTION   0x40e
340 #define OBD_FAIL_OSC_CP_CANCEL_RACE      0x40f
341 #define OBD_FAIL_OSC_CP_ENQ_RACE         0x410
342 #define OBD_FAIL_OSC_NO_GRANT            0x411
343
344 #define OBD_FAIL_PTLRPC                  0x500
345 #define OBD_FAIL_PTLRPC_ACK              0x501
346 #define OBD_FAIL_PTLRPC_RQBD             0x502
347 #define OBD_FAIL_PTLRPC_BULK_GET_NET     0x503
348 #define OBD_FAIL_PTLRPC_BULK_PUT_NET     0x504
349 #define OBD_FAIL_PTLRPC_DROP_RPC         0x505
350 #define OBD_FAIL_PTLRPC_DELAY_SEND       0x506
351 #define OBD_FAIL_PTLRPC_DELAY_RECOV      0x507
352 #define OBD_FAIL_PTLRPC_CLIENT_BULK_CB   0x508
353 #define OBD_FAIL_PTLRPC_PAUSE_REQ        0x50a
354 #define OBD_FAIL_PTLRPC_PAUSE_REP        0x50c
355 #define OBD_FAIL_PTLRPC_IMP_DEACTIVE     0x50d
356 #define OBD_FAIL_PTLRPC_DUMP_LOG         0x50e
357 #define OBD_FAIL_PTLRPC_LONG_REPL_UNLINK 0x50f
358 #define OBD_FAIL_PTLRPC_LONG_BULK_UNLINK 0x510
359 #define OBD_FAIL_PTLRPC_HPREQ_TIMEOUT    0x511
360 #define OBD_FAIL_PTLRPC_HPREQ_NOTIMEOUT  0x512
361 #define OBD_FAIL_PTLRPC_DROP_REQ_OPC     0x513
362 #define OBD_FAIL_PTLRPC_FINISH_REPLAY    0x514
363 #define OBD_FAIL_PTLRPC_CLIENT_BULK_CB2  0x515
364
365 #define OBD_FAIL_OBD_PING_NET            0x600
366 #define OBD_FAIL_OBD_LOG_CANCEL_NET      0x601
367 #define OBD_FAIL_OBD_LOGD_NET            0x602
368 #define OBD_FAIL_OBD_QC_CALLBACK_NET     0x603
369 #define OBD_FAIL_OBD_DQACQ               0x604
370 #define OBD_FAIL_OBD_LLOG_SETUP          0x605
371 #define OBD_FAIL_OBD_LOG_CANCEL_REP      0x606
372
373 #define OBD_FAIL_TGT_REPLY_NET           0x700
374 #define OBD_FAIL_TGT_CONN_RACE           0x701
375 #define OBD_FAIL_TGT_FORCE_RECONNECT     0x702
376 #define OBD_FAIL_TGT_DELAY_CONNECT       0x703
377 #define OBD_FAIL_TGT_DELAY_RECONNECT     0x704
378 #define OBD_FAIL_TGT_DELAY_PRECREATE     0x705
379 #define OBD_FAIL_TGT_TOOMANY_THREADS     0x706
380 #define OBD_FAIL_TGT_REPLAY_DROP         0x707
381 #define OBD_FAIL_TGT_FAKE_EXP            0x708
382 #define OBD_FAIL_TGT_REPLAY_DELAY        0x709
383 #define OBD_FAIL_TGT_LAST_REPLAY         0x710
384 #define OBD_FAIL_TGT_CLIENT_ADD          0x711
385 #define OBD_FAIL_TGT_RCVG_FLAG           0x712
386
387 #define OBD_FAIL_MDC_REVALIDATE_PAUSE    0x800
388 #define OBD_FAIL_MDC_ENQUEUE_PAUSE       0x801
389 #define OBD_FAIL_MDC_OLD_EXT_FLAGS       0x802
390 #define OBD_FAIL_MDC_GETATTR_ENQUEUE     0x803
391
392 #define OBD_FAIL_MGS                     0x900
393 #define OBD_FAIL_MGS_ALL_REQUEST_NET     0x901
394 #define OBD_FAIL_MGS_ALL_REPLY_NET       0x902
395 #define OBD_FAIL_MGC_PAUSE_PROCESS_LOG   0x903
396 #define OBD_FAIL_MGS_PAUSE_REQ           0x904
397 #define OBD_FAIL_MGS_PAUSE_TARGET_REG    0x905
398
399 #define OBD_FAIL_QUOTA_RET_QDATA         0xA02
400 #define OBD_FAIL_QUOTA_DELAY_REL         0xA03
401 #define OBD_FAIL_QUOTA_DELAY_SD          0xA04
402
403 #define OBD_FAIL_LPROC_REMOVE            0xB00
404
405 #define OBD_FAIL_GENERAL_ALLOC           0xC00
406
407 #define OBD_FAIL_SEQ                     0x1000
408 #define OBD_FAIL_SEQ_QUERY_NET           0x1001
409
410 #define OBD_FAIL_FLD                     0x1100
411 #define OBD_FAIL_FLD_QUERY_NET           0x1101
412
413 #define OBD_FAIL_SEC_CTX                 0x1200
414 #define OBD_FAIL_SEC_CTX_INIT_NET        0x1201
415 #define OBD_FAIL_SEC_CTX_INIT_CONT_NET   0x1202
416 #define OBD_FAIL_SEC_CTX_FINI_NET        0x1203
417 #define OBD_FAIL_SEC_CTX_HDL_PAUSE       0x1204
418
419 #define OBD_FAIL_LLOG                               0x1300
420 #define OBD_FAIL_LLOG_ORIGIN_CONNECT_NET            0x1301
421 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_CREATE_NET      0x1302
422 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_DESTROY_NET     0x1303
423 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_READ_HEADER_NET 0x1304
424 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_NEXT_BLOCK_NET  0x1305
425 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_PREV_BLOCK_NET  0x1306
426 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_WRITE_REC_NET   0x1307
427 #define OBD_FAIL_LLOG_ORIGIN_HANDLE_CLOSE_NET       0x1308
428 #define OBD_FAIL_LLOG_CATINFO_NET                   0x1309
429 #define OBD_FAIL_MDS_SYNC_CAPA_SL                   0x1310
430 #define OBD_FAIL_SEQ_ALLOC                          0x1311
431
432 #define OBD_FAIL_LLITE                              0x1400
433 #define OBD_FAIL_LLITE_FAULT_TRUNC_RACE             0x1401
434
435 /* Assign references to moved code to reduce code changes */
436 #define OBD_FAIL_PRECHECK(id)                   CFS_FAIL_PRECHECK(id)
437 #define OBD_FAIL_CHECK(id)                      CFS_FAIL_CHECK(id)
438 #define OBD_FAIL_CHECK_VALUE(id, value)         CFS_FAIL_CHECK_VALUE(id, value)
439 #define OBD_FAIL_CHECK_ORSET(id, value)         CFS_FAIL_CHECK_ORSET(id, value)
440 #define OBD_FAIL_CHECK_RESET(id, value)         CFS_FAIL_CHECK_RESET(id, value)
441 #define OBD_FAIL_RETURN(id, ret)                CFS_FAIL_RETURN(id, ret)
442 #define OBD_FAIL_TIMEOUT(id, secs)              CFS_FAIL_TIMEOUT(id, secs)
443 #define OBD_FAIL_TIMEOUT_MS(id, ms)             CFS_FAIL_TIMEOUT_MS(id, ms)
444 #define OBD_FAIL_TIMEOUT_ORSET(id, value, secs) CFS_FAIL_TIMEOUT_ORSET(id, value, secs)
445 #define OBD_RACE(id)                            CFS_RACE(id)
446 #define OBD_FAIL_ONCE                           CFS_FAIL_ONCE
447 #define OBD_FAILED                              CFS_FAILED
448
449 extern cfs_atomic_t libcfs_kmemory;
450
451 #ifdef LPROCFS
452 #define obd_memory_add(size)                                                  \
453         lprocfs_counter_add(obd_memory, OBD_MEMORY_STAT, (long)(size))
454 #define obd_memory_sub(size)                                                  \
455         lprocfs_counter_sub(obd_memory, OBD_MEMORY_STAT, (long)(size))
456 #define obd_memory_sum()                                                      \
457         lprocfs_stats_collector(obd_memory, OBD_MEMORY_STAT,                  \
458                                 LPROCFS_FIELDS_FLAGS_SUM)
459 #define obd_pages_add(order)                                                  \
460         lprocfs_counter_add(obd_memory, OBD_MEMORY_PAGES_STAT,                \
461                             (long)(1 << (order)))
462 #define obd_pages_sub(order)                                                  \
463         lprocfs_counter_sub(obd_memory, OBD_MEMORY_PAGES_STAT,                \
464                             (long)(1 << (order)))
465 #define obd_pages_sum()                                                       \
466         lprocfs_stats_collector(obd_memory, OBD_MEMORY_PAGES_STAT,            \
467                                 LPROCFS_FIELDS_FLAGS_SUM)
468
469 extern void obd_update_maxusage(void);
470 extern __u64 obd_memory_max(void);
471 extern __u64 obd_pages_max(void);
472
473 #else
474
475 extern __u64 obd_alloc;
476 extern __u64 obd_pages;
477
478 extern __u64 obd_max_alloc;
479 extern __u64 obd_max_pages;
480
481 static inline void obd_memory_add(long size)
482 {
483         obd_alloc += size;
484         if (obd_alloc > obd_max_alloc)
485                 obd_max_alloc = obd_alloc;
486 }
487
488 static inline void obd_memory_sub(long size)
489 {
490         obd_alloc -= size;
491 }
492
493 static inline void obd_pages_add(int order)
494 {
495         obd_pages += 1<< order;
496         if (obd_pages > obd_max_pages)
497                 obd_max_pages = obd_pages;
498 }
499
500 static inline void obd_pages_sub(int order)
501 {
502         obd_pages -= 1<< order;
503 }
504
505 #define obd_memory_sum() (obd_alloc)
506 #define obd_pages_sum()  (obd_pages)
507
508 #define obd_memory_max() (obd_max_alloc)
509 #define obd_pages_max() (obd_max_pages)
510
511 #endif
512
513 #define OBD_DEBUG_MEMUSAGE (1)
514
515 #if OBD_DEBUG_MEMUSAGE
516 #define OBD_ALLOC_POST(ptr, size, name)                                 \
517                 obd_memory_add(size);                                   \
518                 CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n",       \
519                        (int)(size), ptr)
520
521 #define OBD_FREE_PRE(ptr, size, name)                                   \
522         LASSERT(ptr);                                                   \
523         obd_memory_sub(size);                                           \
524         CDEBUG(D_MALLOC, name " '" #ptr "': %d at %p.\n",               \
525                (int)(size), ptr);                                       \
526         POISON(ptr, 0x5a, size)
527
528 #else /* !OBD_DEBUG_MEMUSAGE */
529
530 #define OBD_ALLOC_POST(ptr, size, name) ((void)0)
531 #define OBD_FREE_PRE(ptr, size, name)   ((void)0)
532
533 #endif /* !OBD_DEBUG_MEMUSAGE */
534
535 #ifdef RANDOM_FAIL_ALLOC
536 #define HAS_FAIL_ALLOC_FLAG OBD_FAIL_CHECK(OBD_FAIL_GENERAL_ALLOC)
537 #else
538 #define HAS_FAIL_ALLOC_FLAG 0
539 #endif
540
541 #define OBD_ALLOC_FAIL_BITS 24
542 #define OBD_ALLOC_FAIL_MASK ((1 << OBD_ALLOC_FAIL_BITS) - 1)
543 #define OBD_ALLOC_FAIL_MULT (OBD_ALLOC_FAIL_MASK / 100)
544
545 #if defined(LUSTRE_UTILS) /* this version is for utils only */
546 #define OBD_ALLOC_GFP(ptr, size, gfp_mask)                                    \
547 do {                                                                          \
548         (ptr) = cfs_alloc(size, (gfp_mask));                                  \
549         if (unlikely((ptr) == NULL)) {                                        \
550                 CERROR("kmalloc of '" #ptr "' (%d bytes) failed at %s:%d\n",  \
551                        (int)(size), __FILE__, __LINE__);                      \
552         } else {                                                              \
553                 memset(ptr, 0, size);                                         \
554                 CDEBUG(D_MALLOC, "kmalloced '" #ptr "': %d at %p\n",          \
555                        (int)(size), ptr);                                     \
556         }                                                                     \
557 } while (0)
558 #else /* this version is for the kernel and liblustre */
559 #define OBD_FREE_RTN0(ptr)                                                    \
560 ({                                                                            \
561         cfs_free(ptr);                                                        \
562         (ptr) = NULL;                                                         \
563         0;                                                                    \
564 })
565 #define OBD_ALLOC_GFP(ptr, size, gfp_mask)                                    \
566 do {                                                                          \
567         (ptr) = cfs_alloc(size, (gfp_mask));                                  \
568         if (likely((ptr) != NULL &&                                           \
569                    (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 ||       \
570                     !obd_alloc_fail(ptr, #ptr, "km", size,                    \
571                                     __FILE__, __LINE__) ||                    \
572                     OBD_FREE_RTN0(ptr)))){                                    \
573                 memset(ptr, 0, size);                                         \
574                 OBD_ALLOC_POST(ptr, size, "kmalloced");                       \
575         }                                                                     \
576 } while (0)
577 #endif
578
579 #ifndef OBD_ALLOC_MASK
580 # define OBD_ALLOC_MASK CFS_ALLOC_IO
581 #endif
582
583 #define OBD_ALLOC(ptr, size) OBD_ALLOC_GFP(ptr, size, OBD_ALLOC_MASK)
584 #define OBD_ALLOC_WAIT(ptr, size) OBD_ALLOC_GFP(ptr, size, CFS_ALLOC_STD)
585 #define OBD_ALLOC_PTR(ptr) OBD_ALLOC(ptr, sizeof *(ptr))
586 #define OBD_ALLOC_PTR_WAIT(ptr) OBD_ALLOC_WAIT(ptr, sizeof *(ptr))
587
588 #ifdef __arch_um__
589 # define OBD_VMALLOC(ptr, size) OBD_ALLOC(ptr, size)
590 #else
591 # define OBD_VMALLOC(ptr, size)                                               \
592 do {                                                                          \
593         (ptr) = cfs_alloc_large(size);                                        \
594         if (unlikely((ptr) == NULL)) {                                        \
595                 CERROR("vmalloc of '" #ptr "' (%d bytes) failed\n",           \
596                        (int)(size));                                          \
597                 CERROR(LPU64" total bytes allocated by Lustre, %d by LNET\n", \
598                        obd_memory_sum(), cfs_atomic_read(&libcfs_kmemory));   \
599         } else {                                                              \
600                 memset(ptr, 0, size);                                         \
601                 OBD_ALLOC_POST(ptr, size, "vmalloced");                       \
602         }                                                                     \
603 } while(0)
604 #endif
605
606 #ifdef __KERNEL__
607
608 /* Allocations above this size are considered too big and could not be done
609  * atomically. 
610  *
611  * Be very careful when changing this value, especially when decreasing it,
612  * since vmalloc in Linux doesn't perform well on multi-cores system, calling 
613  * vmalloc in critical path would hurt peformance badly. See LU-66.
614  */
615 #define OBD_ALLOC_BIG (4 * CFS_PAGE_SIZE)
616
617 #define OBD_ALLOC_LARGE(ptr, size)                                            \
618 do {                                                                          \
619         if (size > OBD_ALLOC_BIG)                                             \
620                 OBD_VMALLOC(ptr, size);                                       \
621         else                                                                  \
622                 OBD_ALLOC(ptr, size);                                         \
623 } while (0)
624
625 #define OBD_FREE_LARGE(ptr, size)                                             \
626 do {                                                                          \
627         if (size > OBD_ALLOC_BIG)                                             \
628                 OBD_VFREE(ptr, size);                                         \
629         else                                                                  \
630                 OBD_FREE(ptr, size);                                          \
631 } while (0)
632 #else
633 #define OBD_ALLOC_LARGE(ptr, size) OBD_ALLOC(ptr, size)
634 #define OBD_FREE_LARGE(ptr, size) OBD_FREE(ptr,size)
635 #endif
636
637 #ifdef CONFIG_DEBUG_SLAB
638 #define POISON(ptr, c, s) do {} while (0)
639 #define POISON_PTR(ptr)  ((void)0)
640 #else
641 #define POISON(ptr, c, s) memset(ptr, c, s)
642 #define POISON_PTR(ptr)  (ptr) = (void *)0xdeadbeef
643 #endif
644
645 #ifdef POISON_BULK
646 #define POISON_PAGE(page, val) do { memset(kmap(page), val, CFS_PAGE_SIZE);   \
647                                     kunmap(page); } while (0)
648 #else
649 #define POISON_PAGE(page, val) do { } while (0)
650 #endif
651
652 #ifdef __KERNEL__
653 #define OBD_FREE(ptr, size)                                                   \
654 do {                                                                          \
655         OBD_FREE_PRE(ptr, size, "kfreed");                                    \
656         cfs_free(ptr);                                                        \
657         POISON_PTR(ptr);                                                      \
658 } while(0)
659
660
661 #ifdef HAVE_RCU
662 # ifdef HAVE_CALL_RCU_PARAM
663 #  define my_call_rcu(rcu, cb)            call_rcu(rcu, cb, rcu)
664 # else
665 #  define my_call_rcu(rcu, cb)            call_rcu(rcu, cb)
666 # endif
667 #else
668 # define my_call_rcu(rcu, cb)             (cb)(rcu)
669 #endif
670
671 #define OBD_FREE_RCU_CB(ptr, size, handle, free_cb)                           \
672 do {                                                                          \
673         struct portals_handle *__h = (handle);                                \
674         LASSERT(handle);                                                      \
675         __h->h_ptr = (ptr);                                                   \
676         __h->h_size = (size);                                                 \
677         __h->h_free_cb = (void (*)(void *, size_t))(free_cb);                 \
678         my_call_rcu(&__h->h_rcu, class_handle_free_cb);                       \
679         POISON_PTR(ptr);                                                      \
680 } while(0)
681 #define OBD_FREE_RCU(ptr, size, handle) OBD_FREE_RCU_CB(ptr, size, handle, NULL)
682
683 #else
684 #define OBD_FREE(ptr, size) ((void)(size), free((ptr)))
685 #define OBD_FREE_RCU(ptr, size, handle) (OBD_FREE(ptr, size))
686 #define OBD_FREE_RCU_CB(ptr, size, handle, cb)     ((*(cb))(ptr, size))
687 #endif /* ifdef __KERNEL__ */
688
689 #ifdef __arch_um__
690 # define OBD_VFREE(ptr, size) OBD_FREE(ptr, size)
691 #else
692 # define OBD_VFREE(ptr, size)                                                 \
693 do {                                                                          \
694         OBD_FREE_PRE(ptr, size, "vfreed");                                    \
695         cfs_free_large(ptr);                                                  \
696         POISON_PTR(ptr);                                                      \
697 } while(0)
698 #endif
699
700 /* we memset() the slab object to 0 when allocation succeeds, so DO NOT
701  * HAVE A CTOR THAT DOES ANYTHING.  its work will be cleared here.  we'd
702  * love to assert on that, but slab.c keeps kmem_cache_s all to itself. */
703 #define OBD_SLAB_FREE_RTN0(ptr, slab)                                         \
704 ({                                                                            \
705         cfs_mem_cache_free((slab), (ptr));                                    \
706         (ptr) = NULL;                                                         \
707         0;                                                                    \
708 })
709 #define OBD_SLAB_ALLOC(ptr, slab, type, size)                                 \
710 do {                                                                          \
711         LASSERT(ergo(type != CFS_ALLOC_ATOMIC, !cfs_in_interrupt()));         \
712         (ptr) = cfs_mem_cache_alloc(slab, (type));                            \
713         if (likely((ptr) != NULL &&                                           \
714                    (!HAS_FAIL_ALLOC_FLAG || obd_alloc_fail_rate == 0 ||       \
715                     !obd_alloc_fail(ptr, #ptr, "slab-", size,                 \
716                                     __FILE__, __LINE__) ||                    \
717                     OBD_SLAB_FREE_RTN0(ptr, slab)))) {                        \
718                 memset(ptr, 0, size);                                         \
719                 OBD_ALLOC_POST(ptr, size, "slab-alloced");                    \
720         }                                                                     \
721 } while(0)
722
723 #define OBD_FREE_PTR(ptr) OBD_FREE(ptr, sizeof *(ptr))
724
725 #define OBD_SLAB_FREE(ptr, slab, size)                                        \
726 do {                                                                          \
727         OBD_FREE_PRE(ptr, size, "slab-freed");                                \
728         cfs_mem_cache_free(slab, ptr);                                        \
729         POISON_PTR(ptr);                                                      \
730 } while(0)
731
732 #define OBD_SLAB_ALLOC_PTR(ptr, slab)                                         \
733         OBD_SLAB_ALLOC((ptr), (slab), CFS_ALLOC_STD, sizeof *(ptr))
734 #define OBD_SLAB_FREE_PTR(ptr, slab)                                          \
735         OBD_SLAB_FREE((ptr), (slab), sizeof *(ptr))
736 #define OBD_SLAB_ALLOC_PTR_GFP(ptr, slab, gfp)                              \
737         OBD_SLAB_ALLOC((ptr), (slab), (gfp), sizeof *(ptr))
738
739 #define KEY_IS(str) \
740         (keylen >= (sizeof(str)-1) && memcmp(key, str, (sizeof(str)-1)) == 0)
741
742 /* Wrapper for contiguous page frame allocation */
743 #define OBD_PAGE_ALLOC(ptr, gfp_mask)                                         \
744 do {                                                                          \
745         (ptr) = cfs_alloc_page(gfp_mask);                                     \
746         if (unlikely((ptr) == NULL)) {                                        \
747                 CERROR("alloc_pages of '" #ptr "' %d page(s) / "LPU64" bytes "\
748                        "failed\n", (int)1,                                    \
749                        (__u64)(1 << CFS_PAGE_SHIFT));                         \
750                 CERROR(LPU64" total bytes and "LPU64" total pages "           \
751                        "("LPU64" bytes) allocated by Lustre, "                \
752                        "%d total bytes by LNET\n",                            \
753                        obd_memory_sum(),                                      \
754                        obd_pages_sum() << CFS_PAGE_SHIFT,                     \
755                        obd_pages_sum(),                                       \
756                        cfs_atomic_read(&libcfs_kmemory));                     \
757         } else {                                                              \
758                 obd_pages_add(0);                                             \
759                 CDEBUG(D_MALLOC, "alloc_pages '" #ptr "': %d page(s) / "      \
760                        LPU64" bytes at %p.\n",                                \
761                        (int)1,                                                \
762                        (__u64)(1 << CFS_PAGE_SHIFT), ptr);                    \
763         }                                                                     \
764 } while (0)
765
766 #define OBD_PAGE_FREE(ptr)                                                    \
767 do {                                                                          \
768         LASSERT(ptr);                                                         \
769         obd_pages_sub(0);                                                     \
770         CDEBUG(D_MALLOC, "free_pages '" #ptr "': %d page(s) / "LPU64" bytes " \
771                "at %p.\n",                                                    \
772                (int)1, (__u64)(1 << CFS_PAGE_SHIFT),                          \
773                ptr);                                                          \
774         cfs_free_page(ptr);                                                   \
775         (ptr) = (void *)0xdeadbeef;                                           \
776 } while (0)
777
778 #endif