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d7e09d03 PT |
1 | /* |
2 | * GPL HEADER START | |
3 | * | |
4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
5 | * | |
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. | |
9 | * | |
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). | |
15 | * | |
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.sun.com/software/products/lustre/docs/GPLv2.pdf | |
19 | * | |
20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
21 | * CA 95054 USA or visit www.sun.com if you need additional information or | |
22 | * have any questions. | |
23 | * | |
24 | * GPL HEADER END | |
25 | */ | |
26 | /* | |
27 | * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. | |
28 | * Use is subject to license terms. | |
29 | * | |
30 | * Copyright (c) 2011, 2012, Intel Corporation. | |
31 | */ | |
32 | /* | |
33 | * This file is part of Lustre, http://www.lustre.org/ | |
34 | * Lustre is a trademark of Sun Microsystems, Inc. | |
35 | * | |
36 | * lustre/include/lprocfs_status.h | |
37 | * | |
38 | * Top level header file for LProc SNMP | |
39 | * | |
40 | * Author: Hariharan Thantry thantry@users.sourceforge.net | |
41 | */ | |
42 | #ifndef _LPROCFS_SNMP_H | |
43 | #define _LPROCFS_SNMP_H | |
44 | ||
5c8c82f6 | 45 | #include <linux/debugfs.h> |
a9c7db39 JH |
46 | #include <linux/seq_file.h> |
47 | #include <linux/spinlock.h> | |
48 | #include <linux/types.h> | |
49 | ||
1accaadf | 50 | #include "lustre/lustre_idl.h" |
d7e09d03 PT |
51 | |
52 | struct lprocfs_vars { | |
73bb1da6 PT |
53 | const char *name; |
54 | struct file_operations *fops; | |
55 | void *data; | |
d7e09d03 PT |
56 | /** |
57 | * /proc file mode. | |
58 | */ | |
3de91f92 | 59 | umode_t proc_mode; |
d7e09d03 PT |
60 | }; |
61 | ||
62 | struct lprocfs_static_vars { | |
d7e09d03 | 63 | struct lprocfs_vars *obd_vars; |
9b801302 | 64 | struct attribute_group *sysfs_vars; |
d7e09d03 PT |
65 | }; |
66 | ||
67 | /* if we find more consumers this could be generalized */ | |
68 | #define OBD_HIST_MAX 32 | |
69 | struct obd_histogram { | |
70 | spinlock_t oh_lock; | |
71 | unsigned long oh_buckets[OBD_HIST_MAX]; | |
72 | }; | |
73 | ||
74 | enum { | |
75 | BRW_R_PAGES = 0, | |
76 | BRW_W_PAGES, | |
77 | BRW_R_RPC_HIST, | |
78 | BRW_W_RPC_HIST, | |
79 | BRW_R_IO_TIME, | |
80 | BRW_W_IO_TIME, | |
81 | BRW_R_DISCONT_PAGES, | |
82 | BRW_W_DISCONT_PAGES, | |
83 | BRW_R_DISCONT_BLOCKS, | |
84 | BRW_W_DISCONT_BLOCKS, | |
85 | BRW_R_DISK_IOSIZE, | |
86 | BRW_W_DISK_IOSIZE, | |
87 | BRW_R_DIO_FRAGS, | |
88 | BRW_W_DIO_FRAGS, | |
89 | BRW_LAST, | |
90 | }; | |
91 | ||
92 | struct brw_stats { | |
93 | struct obd_histogram hist[BRW_LAST]; | |
94 | }; | |
95 | ||
96 | enum { | |
97 | RENAME_SAMEDIR_SIZE = 0, | |
98 | RENAME_CROSSDIR_SRC_SIZE, | |
99 | RENAME_CROSSDIR_TGT_SIZE, | |
100 | RENAME_LAST, | |
101 | }; | |
102 | ||
103 | struct rename_stats { | |
104 | struct obd_histogram hist[RENAME_LAST]; | |
105 | }; | |
106 | ||
107 | /* An lprocfs counter can be configured using the enum bit masks below. | |
108 | * | |
109 | * LPROCFS_CNTR_EXTERNALLOCK indicates that an external lock already | |
110 | * protects this counter from concurrent updates. If not specified, | |
111 | * lprocfs an internal per-counter lock variable. External locks are | |
112 | * not used to protect counter increments, but are used to protect | |
113 | * counter readout and resets. | |
114 | * | |
115 | * LPROCFS_CNTR_AVGMINMAX indicates a multi-valued counter samples, | |
116 | * (i.e. counter can be incremented by more than "1"). When specified, | |
117 | * the counter maintains min, max and sum in addition to a simple | |
118 | * invocation count. This allows averages to be be computed. | |
119 | * If not specified, the counter is an increment-by-1 counter. | |
120 | * min, max, sum, etc. are not maintained. | |
121 | * | |
122 | * LPROCFS_CNTR_STDDEV indicates that the counter should track sum of | |
123 | * squares (for multi-valued counter samples only). This allows | |
124 | * external computation of standard deviation, but involves a 64-bit | |
125 | * multiply per counter increment. | |
126 | */ | |
127 | ||
128 | enum { | |
129 | LPROCFS_CNTR_EXTERNALLOCK = 0x0001, | |
130 | LPROCFS_CNTR_AVGMINMAX = 0x0002, | |
131 | LPROCFS_CNTR_STDDEV = 0x0004, | |
132 | ||
133 | /* counter data type */ | |
134 | LPROCFS_TYPE_REGS = 0x0100, | |
135 | LPROCFS_TYPE_BYTES = 0x0200, | |
136 | LPROCFS_TYPE_PAGES = 0x0400, | |
137 | LPROCFS_TYPE_CYCLE = 0x0800, | |
138 | }; | |
139 | ||
140 | #define LC_MIN_INIT ((~(__u64)0) >> 1) | |
141 | ||
142 | struct lprocfs_counter_header { | |
143 | unsigned int lc_config; | |
144 | const char *lc_name; /* must be static */ | |
145 | const char *lc_units; /* must be static */ | |
146 | }; | |
147 | ||
148 | struct lprocfs_counter { | |
149 | __s64 lc_count; | |
150 | __s64 lc_min; | |
151 | __s64 lc_max; | |
152 | __s64 lc_sumsquare; | |
153 | /* | |
154 | * Every counter has lc_array_sum[0], while lc_array_sum[1] is only | |
155 | * for irq context counter, i.e. stats with | |
156 | * LPROCFS_STATS_FLAG_IRQ_SAFE flag, its counter need | |
157 | * lc_array_sum[1] | |
158 | */ | |
159 | __s64 lc_array_sum[1]; | |
160 | }; | |
161 | #define lc_sum lc_array_sum[0] | |
162 | #define lc_sum_irq lc_array_sum[1] | |
163 | ||
164 | struct lprocfs_percpu { | |
165 | #ifndef __GNUC__ | |
166 | __s64 pad; | |
167 | #endif | |
168 | struct lprocfs_counter lp_cntr[0]; | |
169 | }; | |
170 | ||
171 | #define LPROCFS_GET_NUM_CPU 0x0001 | |
172 | #define LPROCFS_GET_SMP_ID 0x0002 | |
173 | ||
174 | enum lprocfs_stats_flags { | |
175 | LPROCFS_STATS_FLAG_NONE = 0x0000, /* per cpu counter */ | |
176 | LPROCFS_STATS_FLAG_NOPERCPU = 0x0001, /* stats have no percpu | |
177 | * area and need locking */ | |
178 | LPROCFS_STATS_FLAG_IRQ_SAFE = 0x0002, /* alloc need irq safe */ | |
179 | }; | |
180 | ||
181 | enum lprocfs_fields_flags { | |
182 | LPROCFS_FIELDS_FLAGS_CONFIG = 0x0001, | |
183 | LPROCFS_FIELDS_FLAGS_SUM = 0x0002, | |
184 | LPROCFS_FIELDS_FLAGS_MIN = 0x0003, | |
185 | LPROCFS_FIELDS_FLAGS_MAX = 0x0004, | |
186 | LPROCFS_FIELDS_FLAGS_AVG = 0x0005, | |
187 | LPROCFS_FIELDS_FLAGS_SUMSQUARE = 0x0006, | |
188 | LPROCFS_FIELDS_FLAGS_COUNT = 0x0007, | |
189 | }; | |
190 | ||
191 | struct lprocfs_stats { | |
192 | /* # of counters */ | |
193 | unsigned short ls_num; | |
194 | /* 1 + the biggest cpu # whose ls_percpu slot has been allocated */ | |
195 | unsigned short ls_biggest_alloc_num; | |
196 | enum lprocfs_stats_flags ls_flags; | |
197 | /* Lock used when there are no percpu stats areas; For percpu stats, | |
198 | * it is used to protect ls_biggest_alloc_num change */ | |
199 | spinlock_t ls_lock; | |
200 | ||
201 | /* has ls_num of counter headers */ | |
202 | struct lprocfs_counter_header *ls_cnt_header; | |
203 | struct lprocfs_percpu *ls_percpu[0]; | |
204 | }; | |
205 | ||
206 | #define OPC_RANGE(seg) (seg ## _LAST_OPC - seg ## _FIRST_OPC) | |
207 | ||
208 | /* Pack all opcodes down into a single monotonically increasing index */ | |
209 | static inline int opcode_offset(__u32 opc) { | |
210 | if (opc < OST_LAST_OPC) { | |
211 | /* OST opcode */ | |
212 | return (opc - OST_FIRST_OPC); | |
213 | } else if (opc < MDS_LAST_OPC) { | |
214 | /* MDS opcode */ | |
215 | return (opc - MDS_FIRST_OPC + | |
216 | OPC_RANGE(OST)); | |
217 | } else if (opc < LDLM_LAST_OPC) { | |
218 | /* LDLM Opcode */ | |
219 | return (opc - LDLM_FIRST_OPC + | |
220 | OPC_RANGE(MDS) + | |
221 | OPC_RANGE(OST)); | |
222 | } else if (opc < MGS_LAST_OPC) { | |
223 | /* MGS Opcode */ | |
224 | return (opc - MGS_FIRST_OPC + | |
225 | OPC_RANGE(LDLM) + | |
226 | OPC_RANGE(MDS) + | |
227 | OPC_RANGE(OST)); | |
228 | } else if (opc < OBD_LAST_OPC) { | |
229 | /* OBD Ping */ | |
230 | return (opc - OBD_FIRST_OPC + | |
231 | OPC_RANGE(MGS) + | |
232 | OPC_RANGE(LDLM) + | |
233 | OPC_RANGE(MDS) + | |
234 | OPC_RANGE(OST)); | |
235 | } else if (opc < LLOG_LAST_OPC) { | |
236 | /* LLOG Opcode */ | |
237 | return (opc - LLOG_FIRST_OPC + | |
238 | OPC_RANGE(OBD) + | |
239 | OPC_RANGE(MGS) + | |
240 | OPC_RANGE(LDLM) + | |
241 | OPC_RANGE(MDS) + | |
242 | OPC_RANGE(OST)); | |
243 | } else if (opc < QUOTA_LAST_OPC) { | |
244 | /* LQUOTA Opcode */ | |
245 | return (opc - QUOTA_FIRST_OPC + | |
246 | OPC_RANGE(LLOG) + | |
247 | OPC_RANGE(OBD) + | |
248 | OPC_RANGE(MGS) + | |
249 | OPC_RANGE(LDLM) + | |
250 | OPC_RANGE(MDS) + | |
251 | OPC_RANGE(OST)); | |
252 | } else if (opc < SEQ_LAST_OPC) { | |
253 | /* SEQ opcode */ | |
254 | return (opc - SEQ_FIRST_OPC + | |
255 | OPC_RANGE(QUOTA) + | |
256 | OPC_RANGE(LLOG) + | |
257 | OPC_RANGE(OBD) + | |
258 | OPC_RANGE(MGS) + | |
259 | OPC_RANGE(LDLM) + | |
260 | OPC_RANGE(MDS) + | |
261 | OPC_RANGE(OST)); | |
262 | } else if (opc < SEC_LAST_OPC) { | |
263 | /* SEC opcode */ | |
264 | return (opc - SEC_FIRST_OPC + | |
265 | OPC_RANGE(SEQ) + | |
266 | OPC_RANGE(QUOTA) + | |
267 | OPC_RANGE(LLOG) + | |
268 | OPC_RANGE(OBD) + | |
269 | OPC_RANGE(MGS) + | |
270 | OPC_RANGE(LDLM) + | |
271 | OPC_RANGE(MDS) + | |
272 | OPC_RANGE(OST)); | |
273 | } else if (opc < FLD_LAST_OPC) { | |
274 | /* FLD opcode */ | |
275 | return (opc - FLD_FIRST_OPC + | |
276 | OPC_RANGE(SEC) + | |
277 | OPC_RANGE(SEQ) + | |
278 | OPC_RANGE(QUOTA) + | |
279 | OPC_RANGE(LLOG) + | |
280 | OPC_RANGE(OBD) + | |
281 | OPC_RANGE(MGS) + | |
282 | OPC_RANGE(LDLM) + | |
283 | OPC_RANGE(MDS) + | |
284 | OPC_RANGE(OST)); | |
285 | } else if (opc < UPDATE_LAST_OPC) { | |
286 | /* update opcode */ | |
287 | return (opc - UPDATE_FIRST_OPC + | |
288 | OPC_RANGE(FLD) + | |
289 | OPC_RANGE(SEC) + | |
290 | OPC_RANGE(SEQ) + | |
291 | OPC_RANGE(QUOTA) + | |
292 | OPC_RANGE(LLOG) + | |
293 | OPC_RANGE(OBD) + | |
294 | OPC_RANGE(MGS) + | |
295 | OPC_RANGE(LDLM) + | |
296 | OPC_RANGE(MDS) + | |
297 | OPC_RANGE(OST)); | |
298 | } else { | |
299 | /* Unknown Opcode */ | |
300 | return -1; | |
301 | } | |
302 | } | |
303 | ||
304 | ||
305 | #define LUSTRE_MAX_OPCODES (OPC_RANGE(OST) + \ | |
306 | OPC_RANGE(MDS) + \ | |
307 | OPC_RANGE(LDLM) + \ | |
308 | OPC_RANGE(MGS) + \ | |
309 | OPC_RANGE(OBD) + \ | |
310 | OPC_RANGE(LLOG) + \ | |
311 | OPC_RANGE(SEC) + \ | |
312 | OPC_RANGE(SEQ) + \ | |
313 | OPC_RANGE(SEC) + \ | |
314 | OPC_RANGE(FLD) + \ | |
315 | OPC_RANGE(UPDATE)) | |
316 | ||
317 | #define EXTRA_MAX_OPCODES ((PTLRPC_LAST_CNTR - PTLRPC_FIRST_CNTR) + \ | |
318 | OPC_RANGE(EXTRA)) | |
319 | ||
320 | enum { | |
321 | PTLRPC_REQWAIT_CNTR = 0, | |
322 | PTLRPC_REQQDEPTH_CNTR, | |
323 | PTLRPC_REQACTIVE_CNTR, | |
324 | PTLRPC_TIMEOUT, | |
325 | PTLRPC_REQBUF_AVAIL_CNTR, | |
326 | PTLRPC_LAST_CNTR | |
327 | }; | |
328 | ||
329 | #define PTLRPC_FIRST_CNTR PTLRPC_REQWAIT_CNTR | |
330 | ||
331 | enum { | |
332 | LDLM_GLIMPSE_ENQUEUE = 0, | |
333 | LDLM_PLAIN_ENQUEUE, | |
334 | LDLM_EXTENT_ENQUEUE, | |
335 | LDLM_FLOCK_ENQUEUE, | |
336 | LDLM_IBITS_ENQUEUE, | |
337 | MDS_REINT_SETATTR, | |
338 | MDS_REINT_CREATE, | |
339 | MDS_REINT_LINK, | |
340 | MDS_REINT_UNLINK, | |
341 | MDS_REINT_RENAME, | |
342 | MDS_REINT_OPEN, | |
343 | MDS_REINT_SETXATTR, | |
344 | BRW_READ_BYTES, | |
345 | BRW_WRITE_BYTES, | |
346 | EXTRA_LAST_OPC | |
347 | }; | |
348 | ||
349 | #define EXTRA_FIRST_OPC LDLM_GLIMPSE_ENQUEUE | |
350 | /* class_obd.c */ | |
5c8c82f6 | 351 | extern struct dentry *debugfs_lustre_root; |
8b828445 OD |
352 | extern struct kobject *lustre_kobj; |
353 | ||
d7e09d03 PT |
354 | struct obd_device; |
355 | struct obd_histogram; | |
356 | ||
357 | /* Days / hours / mins / seconds format */ | |
358 | struct dhms { | |
1d8cb70c | 359 | int d, h, m, s; |
d7e09d03 PT |
360 | }; |
361 | static inline void s2dhms(struct dhms *ts, time_t secs) | |
362 | { | |
363 | ts->d = secs / 86400; | |
364 | secs = secs % 86400; | |
365 | ts->h = secs / 3600; | |
366 | secs = secs % 3600; | |
367 | ts->m = secs / 60; | |
368 | ts->s = secs % 60; | |
369 | } | |
370 | #define DHMS_FMT "%dd%dh%02dm%02ds" | |
371 | #define DHMS_VARS(x) (x)->d, (x)->h, (x)->m, (x)->s | |
372 | ||
373 | #define JOBSTATS_JOBID_VAR_MAX_LEN 20 | |
374 | #define JOBSTATS_DISABLE "disable" | |
375 | #define JOBSTATS_PROCNAME_UID "procname_uid" | |
76133e66 | 376 | #define JOBSTATS_NODELOCAL "nodelocal" |
d7e09d03 | 377 | |
8150a97f JP |
378 | int lprocfs_write_frac_helper(const char __user *buffer, |
379 | unsigned long count, int *val, int mult); | |
380 | int lprocfs_read_frac_helper(char *buffer, unsigned long count, | |
381 | long val, int mult); | |
382 | int lprocfs_stats_alloc_one(struct lprocfs_stats *stats, unsigned int cpuid); | |
d7e09d03 PT |
383 | /* |
384 | * \return value | |
385 | * < 0 : on error (only possible for opc as LPROCFS_GET_SMP_ID) | |
386 | */ | |
387 | static inline int lprocfs_stats_lock(struct lprocfs_stats *stats, int opc, | |
388 | unsigned long *flags) | |
389 | { | |
390 | int rc = 0; | |
391 | ||
392 | switch (opc) { | |
393 | default: | |
394 | LBUG(); | |
395 | ||
396 | case LPROCFS_GET_SMP_ID: | |
397 | if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) { | |
398 | if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) | |
399 | spin_lock_irqsave(&stats->ls_lock, *flags); | |
400 | else | |
401 | spin_lock(&stats->ls_lock); | |
402 | return 0; | |
403 | } else { | |
404 | unsigned int cpuid = get_cpu(); | |
405 | ||
406 | if (unlikely(stats->ls_percpu[cpuid] == NULL)) { | |
407 | rc = lprocfs_stats_alloc_one(stats, cpuid); | |
408 | if (rc < 0) { | |
409 | put_cpu(); | |
410 | return rc; | |
411 | } | |
412 | } | |
413 | return cpuid; | |
414 | } | |
415 | ||
416 | case LPROCFS_GET_NUM_CPU: | |
417 | if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) { | |
418 | if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) | |
419 | spin_lock_irqsave(&stats->ls_lock, *flags); | |
420 | else | |
421 | spin_lock(&stats->ls_lock); | |
422 | return 1; | |
d7e09d03 | 423 | } |
71e8dd9a | 424 | return stats->ls_biggest_alloc_num; |
d7e09d03 PT |
425 | } |
426 | } | |
427 | ||
428 | static inline void lprocfs_stats_unlock(struct lprocfs_stats *stats, int opc, | |
429 | unsigned long *flags) | |
430 | { | |
431 | switch (opc) { | |
432 | default: | |
433 | LBUG(); | |
434 | ||
435 | case LPROCFS_GET_SMP_ID: | |
436 | if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) { | |
437 | if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) { | |
438 | spin_unlock_irqrestore(&stats->ls_lock, | |
439 | *flags); | |
440 | } else { | |
441 | spin_unlock(&stats->ls_lock); | |
442 | } | |
443 | } else { | |
444 | put_cpu(); | |
445 | } | |
446 | return; | |
447 | ||
448 | case LPROCFS_GET_NUM_CPU: | |
449 | if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) { | |
450 | if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) { | |
451 | spin_unlock_irqrestore(&stats->ls_lock, | |
452 | *flags); | |
453 | } else { | |
454 | spin_unlock(&stats->ls_lock); | |
455 | } | |
456 | } | |
457 | return; | |
458 | } | |
459 | } | |
460 | ||
461 | static inline unsigned int | |
462 | lprocfs_stats_counter_size(struct lprocfs_stats *stats) | |
463 | { | |
464 | unsigned int percpusize; | |
465 | ||
466 | percpusize = offsetof(struct lprocfs_percpu, lp_cntr[stats->ls_num]); | |
467 | ||
468 | /* irq safe stats need lc_array_sum[1] */ | |
469 | if ((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0) | |
470 | percpusize += stats->ls_num * sizeof(__s64); | |
471 | ||
472 | if ((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0) | |
473 | percpusize = L1_CACHE_ALIGN(percpusize); | |
474 | ||
475 | return percpusize; | |
476 | } | |
477 | ||
478 | static inline struct lprocfs_counter * | |
479 | lprocfs_stats_counter_get(struct lprocfs_stats *stats, unsigned int cpuid, | |
480 | int index) | |
481 | { | |
482 | struct lprocfs_counter *cntr; | |
483 | ||
484 | cntr = &stats->ls_percpu[cpuid]->lp_cntr[index]; | |
485 | ||
486 | if ((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0) | |
487 | cntr = (void *)cntr + index * sizeof(__s64); | |
488 | ||
489 | return cntr; | |
490 | } | |
491 | ||
492 | /* Two optimized LPROCFS counter increment functions are provided: | |
493 | * lprocfs_counter_incr(cntr, value) - optimized for by-one counters | |
494 | * lprocfs_counter_add(cntr) - use for multi-valued counters | |
495 | * Counter data layout allows config flag, counter lock and the | |
496 | * count itself to reside within a single cache line. | |
497 | */ | |
498 | ||
8150a97f JP |
499 | void lprocfs_counter_add(struct lprocfs_stats *stats, int idx, long amount); |
500 | void lprocfs_counter_sub(struct lprocfs_stats *stats, int idx, long amount); | |
d7e09d03 PT |
501 | |
502 | #define lprocfs_counter_incr(stats, idx) \ | |
503 | lprocfs_counter_add(stats, idx, 1) | |
504 | #define lprocfs_counter_decr(stats, idx) \ | |
505 | lprocfs_counter_sub(stats, idx, 1) | |
506 | ||
8150a97f JP |
507 | __s64 lprocfs_read_helper(struct lprocfs_counter *lc, |
508 | struct lprocfs_counter_header *header, | |
509 | enum lprocfs_stats_flags flags, | |
510 | enum lprocfs_fields_flags field); | |
d7e09d03 PT |
511 | static inline __u64 lprocfs_stats_collector(struct lprocfs_stats *stats, |
512 | int idx, | |
513 | enum lprocfs_fields_flags field) | |
514 | { | |
515 | int i; | |
516 | unsigned int num_cpu; | |
517 | unsigned long flags = 0; | |
518 | __u64 ret = 0; | |
519 | ||
520 | LASSERT(stats != NULL); | |
521 | ||
522 | num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags); | |
523 | for (i = 0; i < num_cpu; i++) { | |
524 | if (stats->ls_percpu[i] == NULL) | |
525 | continue; | |
526 | ret += lprocfs_read_helper( | |
527 | lprocfs_stats_counter_get(stats, i, idx), | |
528 | &stats->ls_cnt_header[idx], stats->ls_flags, | |
529 | field); | |
530 | } | |
531 | lprocfs_stats_unlock(stats, LPROCFS_GET_NUM_CPU, &flags); | |
532 | return ret; | |
533 | } | |
534 | ||
535 | extern struct lprocfs_stats * | |
536 | lprocfs_alloc_stats(unsigned int num, enum lprocfs_stats_flags flags); | |
8150a97f JP |
537 | void lprocfs_clear_stats(struct lprocfs_stats *stats); |
538 | void lprocfs_free_stats(struct lprocfs_stats **stats); | |
539 | void lprocfs_init_ops_stats(int num_private_stats, struct lprocfs_stats *stats); | |
540 | void lprocfs_init_mps_stats(int num_private_stats, struct lprocfs_stats *stats); | |
541 | void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats); | |
542 | int lprocfs_alloc_obd_stats(struct obd_device *obddev, | |
543 | unsigned int num_private_stats); | |
544 | int lprocfs_alloc_md_stats(struct obd_device *obddev, | |
545 | unsigned int num_private_stats); | |
546 | void lprocfs_counter_init(struct lprocfs_stats *stats, int index, | |
547 | unsigned conf, const char *name, const char *units); | |
548 | void lprocfs_free_obd_stats(struct obd_device *obddev); | |
549 | void lprocfs_free_md_stats(struct obd_device *obddev); | |
d7e09d03 | 550 | struct obd_export; |
8150a97f JP |
551 | int lprocfs_exp_cleanup(struct obd_export *exp); |
552 | struct dentry *ldebugfs_add_simple(struct dentry *root, | |
553 | char *name, | |
554 | void *data, | |
555 | struct file_operations *fops); | |
556 | struct dentry * | |
8c36242b | 557 | ldebugfs_add_symlink(const char *name, struct dentry *parent, |
8150a97f | 558 | const char *format, ...); |
d7e09d03 | 559 | |
8150a97f JP |
560 | int ldebugfs_register_stats(struct dentry *parent, |
561 | const char *name, | |
562 | struct lprocfs_stats *stats); | |
d7e09d03 PT |
563 | |
564 | /* lprocfs_status.c */ | |
8150a97f JP |
565 | int ldebugfs_add_vars(struct dentry *parent, |
566 | struct lprocfs_vars *var, | |
567 | void *data); | |
568 | ||
569 | struct dentry *ldebugfs_register(const char *name, | |
570 | struct dentry *parent, | |
571 | struct lprocfs_vars *list, | |
572 | void *data); | |
573 | ||
574 | void ldebugfs_remove(struct dentry **entryp); | |
575 | ||
576 | int lprocfs_obd_setup(struct obd_device *obd, struct lprocfs_vars *list, | |
577 | struct attribute_group *attrs); | |
578 | int lprocfs_obd_cleanup(struct obd_device *obd); | |
579 | ||
580 | int ldebugfs_seq_create(struct dentry *parent, | |
581 | const char *name, | |
582 | umode_t mode, | |
583 | const struct file_operations *seq_fops, | |
584 | void *data); | |
585 | int ldebugfs_obd_seq_create(struct obd_device *dev, | |
586 | const char *name, | |
587 | umode_t mode, | |
588 | const struct file_operations *seq_fops, | |
589 | void *data); | |
d7e09d03 PT |
590 | |
591 | /* Generic callbacks */ | |
592 | ||
8150a97f JP |
593 | int lprocfs_rd_u64(struct seq_file *m, void *data); |
594 | int lprocfs_rd_atomic(struct seq_file *m, void *data); | |
595 | int lprocfs_wr_atomic(struct file *file, const char __user *buffer, | |
596 | unsigned long count, void *data); | |
597 | int lprocfs_rd_uint(struct seq_file *m, void *data); | |
598 | int lprocfs_wr_uint(struct file *file, const char __user *buffer, | |
599 | unsigned long count, void *data); | |
600 | int lprocfs_rd_name(struct seq_file *m, void *data); | |
601 | int lprocfs_rd_server_uuid(struct seq_file *m, void *data); | |
602 | int lprocfs_rd_conn_uuid(struct seq_file *m, void *data); | |
603 | int lprocfs_rd_import(struct seq_file *m, void *data); | |
604 | int lprocfs_rd_state(struct seq_file *m, void *data); | |
605 | int lprocfs_rd_connect_flags(struct seq_file *m, void *data); | |
73bb1da6 | 606 | |
d7e09d03 | 607 | struct adaptive_timeout; |
8150a97f JP |
608 | int lprocfs_at_hist_helper(struct seq_file *m, struct adaptive_timeout *at); |
609 | int lprocfs_rd_timeouts(struct seq_file *m, void *data); | |
610 | int lprocfs_wr_timeouts(struct file *file, const char __user *buffer, | |
611 | unsigned long count, void *data); | |
612 | int lprocfs_wr_evict_client(struct file *file, const char __user *buffer, | |
73bb1da6 | 613 | size_t count, loff_t *off); |
8150a97f JP |
614 | int lprocfs_wr_ping(struct file *file, const char __user *buffer, |
615 | size_t count, loff_t *off); | |
616 | int lprocfs_wr_import(struct file *file, const char __user *buffer, | |
73bb1da6 | 617 | size_t count, loff_t *off); |
8150a97f JP |
618 | int lprocfs_rd_pinger_recov(struct seq_file *m, void *n); |
619 | int lprocfs_wr_pinger_recov(struct file *file, const char __user *buffer, | |
620 | size_t count, loff_t *off); | |
d7e09d03 PT |
621 | |
622 | /* Statfs helpers */ | |
d7e09d03 | 623 | |
8150a97f JP |
624 | int lprocfs_write_helper(const char __user *buffer, unsigned long count, |
625 | int *val); | |
626 | int lprocfs_seq_read_frac_helper(struct seq_file *m, long val, int mult); | |
627 | int lprocfs_write_u64_helper(const char __user *buffer, | |
628 | unsigned long count, __u64 *val); | |
629 | int lprocfs_write_frac_u64_helper(const char *buffer, | |
630 | unsigned long count, | |
631 | __u64 *val, int mult); | |
632 | char *lprocfs_find_named_value(const char *buffer, const char *name, | |
633 | size_t *count); | |
d7e09d03 PT |
634 | void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value); |
635 | void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value); | |
636 | void lprocfs_oh_clear(struct obd_histogram *oh); | |
637 | unsigned long lprocfs_oh_sum(struct obd_histogram *oh); | |
638 | ||
639 | void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx, | |
640 | struct lprocfs_counter *cnt); | |
641 | ||
8150a97f JP |
642 | int lprocfs_single_release(struct inode *, struct file *); |
643 | int lprocfs_seq_release(struct inode *, struct file *); | |
d7e09d03 PT |
644 | |
645 | /* You must use these macros when you want to refer to | |
646 | * the import in a client obd_device for a lprocfs entry */ | |
647 | #define LPROCFS_CLIMP_CHECK(obd) do { \ | |
648 | typecheck(struct obd_device *, obd); \ | |
649 | down_read(&(obd)->u.cli.cl_sem); \ | |
650 | if ((obd)->u.cli.cl_import == NULL) { \ | |
651 | up_read(&(obd)->u.cli.cl_sem); \ | |
652 | return -ENODEV; \ | |
653 | } \ | |
a58a38ac | 654 | } while (0) |
d7e09d03 | 655 | #define LPROCFS_CLIMP_EXIT(obd) \ |
06133e80 | 656 | up_read(&(obd)->u.cli.cl_sem) |
d7e09d03 PT |
657 | |
658 | ||
659 | /* write the name##_seq_show function, call LPROC_SEQ_FOPS_RO for read-only | |
660 | proc entries; otherwise, you will define name##_seq_write function also for | |
661 | a read-write proc entry, and then call LPROC_SEQ_SEQ instead. Finally, | |
e4ba525e | 662 | call ldebugfs_obd_seq_create(obd, filename, 0444, &name#_fops, data); */ |
73bb1da6 | 663 | #define __LPROC_SEQ_FOPS(name, custom_seq_write) \ |
06bf61b2 | 664 | static int name##_single_open(struct inode *inode, struct file *file) \ |
73bb1da6 | 665 | { \ |
e4ba525e | 666 | return single_open(file, name##_seq_show, inode->i_private); \ |
73bb1da6 | 667 | } \ |
b9c98cfa | 668 | static struct file_operations name##_fops = { \ |
d7e09d03 PT |
669 | .owner = THIS_MODULE, \ |
670 | .open = name##_single_open, \ | |
671 | .read = seq_read, \ | |
672 | .write = custom_seq_write, \ | |
673 | .llseek = seq_lseek, \ | |
674 | .release = lprocfs_single_release, \ | |
675 | } | |
676 | ||
677 | #define LPROC_SEQ_FOPS_RO(name) __LPROC_SEQ_FOPS(name, NULL) | |
678 | #define LPROC_SEQ_FOPS(name) __LPROC_SEQ_FOPS(name, name##_seq_write) | |
679 | ||
73bb1da6 PT |
680 | #define LPROC_SEQ_FOPS_RO_TYPE(name, type) \ |
681 | static int name##_##type##_seq_show(struct seq_file *m, void *v)\ | |
682 | { \ | |
683 | return lprocfs_rd_##type(m, m->private); \ | |
684 | } \ | |
685 | LPROC_SEQ_FOPS_RO(name##_##type) | |
686 | ||
687 | #define LPROC_SEQ_FOPS_RW_TYPE(name, type) \ | |
688 | static int name##_##type##_seq_show(struct seq_file *m, void *v)\ | |
689 | { \ | |
690 | return lprocfs_rd_##type(m, m->private); \ | |
691 | } \ | |
692 | static ssize_t name##_##type##_seq_write(struct file *file, \ | |
e84962e3 TL |
693 | const char __user *buffer, size_t count, \ |
694 | loff_t *off) \ | |
73bb1da6 PT |
695 | { \ |
696 | struct seq_file *seq = file->private_data; \ | |
697 | return lprocfs_wr_##type(file, buffer, \ | |
698 | count, seq->private); \ | |
699 | } \ | |
06133e80 | 700 | LPROC_SEQ_FOPS(name##_##type) |
73bb1da6 PT |
701 | |
702 | #define LPROC_SEQ_FOPS_WR_ONLY(name, type) \ | |
703 | static ssize_t name##_##type##_write(struct file *file, \ | |
e84962e3 TL |
704 | const char __user *buffer, size_t count, \ |
705 | loff_t *off) \ | |
73bb1da6 PT |
706 | { \ |
707 | return lprocfs_wr_##type(file, buffer, count, off); \ | |
708 | } \ | |
06bf61b2 | 709 | static int name##_##type##_open(struct inode *inode, struct file *file) \ |
73bb1da6 | 710 | { \ |
e4ba525e | 711 | return single_open(file, NULL, inode->i_private); \ |
73bb1da6 | 712 | } \ |
b9c98cfa | 713 | static struct file_operations name##_##type##_fops = { \ |
73bb1da6 PT |
714 | .open = name##_##type##_open, \ |
715 | .write = name##_##type##_write, \ | |
716 | .release = lprocfs_single_release, \ | |
06133e80 | 717 | } |
73bb1da6 | 718 | |
5e66f70e OD |
719 | struct lustre_attr { |
720 | struct attribute attr; | |
721 | ssize_t (*show)(struct kobject *kobj, struct attribute *attr, | |
722 | char *buf); | |
723 | ssize_t (*store)(struct kobject *kobj, struct attribute *attr, | |
724 | const char *buf, size_t len); | |
725 | }; | |
726 | ||
727 | #define LUSTRE_ATTR(name, mode, show, store) \ | |
728 | static struct lustre_attr lustre_attr_##name = __ATTR(name, mode, show, store) | |
729 | ||
730 | #define LUSTRE_RO_ATTR(name) LUSTRE_ATTR(name, 0444, name##_show, NULL) | |
731 | #define LUSTRE_RW_ATTR(name) LUSTRE_ATTR(name, 0644, name##_show, name##_store) | |
732 | ||
733 | ssize_t lustre_attr_show(struct kobject *kobj, struct attribute *attr, | |
734 | char *buf); | |
735 | ssize_t lustre_attr_store(struct kobject *kobj, struct attribute *attr, | |
736 | const char *buf, size_t len); | |
737 | ||
738 | extern const struct sysfs_ops lustre_sysfs_ops; | |
739 | ||
d7e09d03 PT |
740 | /* lproc_ptlrpc.c */ |
741 | struct ptlrpc_request; | |
8150a97f | 742 | void target_print_req(void *seq_file, struct ptlrpc_request *req); |
d7e09d03 PT |
743 | |
744 | /* lproc_status.c */ | |
73bb1da6 | 745 | int lprocfs_obd_rd_max_pages_per_rpc(struct seq_file *m, void *data); |
d7e09d03 | 746 | int lprocfs_obd_wr_max_pages_per_rpc(struct file *file, const char *buffer, |
73bb1da6 | 747 | size_t count, loff_t *off); |
d7e09d03 PT |
748 | |
749 | /* all quota proc functions */ | |
8150a97f JP |
750 | int lprocfs_quota_rd_bunit(char *page, char **start, |
751 | loff_t off, int count, | |
752 | int *eof, void *data); | |
753 | int lprocfs_quota_wr_bunit(struct file *file, const char *buffer, | |
754 | unsigned long count, void *data); | |
755 | int lprocfs_quota_rd_btune(char *page, char **start, | |
756 | loff_t off, int count, | |
757 | int *eof, void *data); | |
758 | int lprocfs_quota_wr_btune(struct file *file, const char *buffer, | |
759 | unsigned long count, void *data); | |
760 | int lprocfs_quota_rd_iunit(char *page, char **start, | |
761 | loff_t off, int count, | |
762 | int *eof, void *data); | |
763 | int lprocfs_quota_wr_iunit(struct file *file, const char *buffer, | |
764 | unsigned long count, void *data); | |
765 | int lprocfs_quota_rd_itune(char *page, char **start, | |
766 | loff_t off, int count, | |
767 | int *eof, void *data); | |
768 | int lprocfs_quota_wr_itune(struct file *file, const char *buffer, | |
769 | unsigned long count, void *data); | |
770 | int lprocfs_quota_rd_type(char *page, char **start, loff_t off, int count, | |
771 | int *eof, void *data); | |
772 | int lprocfs_quota_wr_type(struct file *file, const char *buffer, | |
773 | unsigned long count, void *data); | |
774 | int lprocfs_quota_rd_switch_seconds(char *page, char **start, loff_t off, | |
775 | int count, int *eof, void *data); | |
776 | int lprocfs_quota_wr_switch_seconds(struct file *file, | |
777 | const char *buffer, | |
778 | unsigned long count, void *data); | |
779 | int lprocfs_quota_rd_sync_blk(char *page, char **start, loff_t off, | |
780 | int count, int *eof, void *data); | |
781 | int lprocfs_quota_wr_sync_blk(struct file *file, const char *buffer, | |
782 | unsigned long count, void *data); | |
783 | int lprocfs_quota_rd_switch_qs(char *page, char **start, loff_t off, | |
784 | int count, int *eof, void *data); | |
785 | int lprocfs_quota_wr_switch_qs(struct file *file, | |
786 | const char *buffer, unsigned long count, | |
787 | void *data); | |
788 | int lprocfs_quota_rd_boundary_factor(char *page, char **start, loff_t off, | |
d7e09d03 | 789 | int count, int *eof, void *data); |
8150a97f JP |
790 | int lprocfs_quota_wr_boundary_factor(struct file *file, |
791 | const char *buffer, unsigned long count, | |
792 | void *data); | |
793 | int lprocfs_quota_rd_least_bunit(char *page, char **start, loff_t off, | |
794 | int count, int *eof, void *data); | |
795 | int lprocfs_quota_wr_least_bunit(struct file *file, | |
796 | const char *buffer, unsigned long count, | |
797 | void *data); | |
798 | int lprocfs_quota_rd_least_iunit(char *page, char **start, loff_t off, | |
799 | int count, int *eof, void *data); | |
800 | int lprocfs_quota_wr_least_iunit(struct file *file, | |
801 | const char *buffer, unsigned long count, | |
802 | void *data); | |
803 | int lprocfs_quota_rd_qs_factor(char *page, char **start, loff_t off, | |
804 | int count, int *eof, void *data); | |
805 | int lprocfs_quota_wr_qs_factor(struct file *file, | |
806 | const char *buffer, unsigned long count, | |
807 | void *data); | |
d7e09d03 | 808 | #endif /* LPROCFS_SNMP_H */ |