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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 | |
6a5b99a4 | 18 | * http://www.gnu.org/licenses/gpl-2.0.html |
d7e09d03 | 19 | * |
d7e09d03 PT |
20 | * GPL HEADER END |
21 | */ | |
22 | /* | |
23 | * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. | |
24 | * Use is subject to license terms. | |
25 | * | |
1dc563a6 | 26 | * Copyright (c) 2011, 2015, Intel Corporation. |
d7e09d03 PT |
27 | */ |
28 | /* | |
29 | * This file is part of Lustre, http://www.lustre.org/ | |
30 | * Lustre is a trademark of Sun Microsystems, Inc. | |
31 | * | |
32 | * lustre/include/lprocfs_status.h | |
33 | * | |
34 | * Top level header file for LProc SNMP | |
35 | * | |
36 | * Author: Hariharan Thantry thantry@users.sourceforge.net | |
37 | */ | |
38 | #ifndef _LPROCFS_SNMP_H | |
39 | #define _LPROCFS_SNMP_H | |
40 | ||
5c8c82f6 | 41 | #include <linux/debugfs.h> |
a9c7db39 JH |
42 | #include <linux/seq_file.h> |
43 | #include <linux/spinlock.h> | |
44 | #include <linux/types.h> | |
45 | ||
1accaadf | 46 | #include "lustre/lustre_idl.h" |
d7e09d03 PT |
47 | |
48 | struct lprocfs_vars { | |
73bb1da6 PT |
49 | const char *name; |
50 | struct file_operations *fops; | |
51 | void *data; | |
d7e09d03 | 52 | /** |
406c1c7c | 53 | * sysfs file mode. |
d7e09d03 | 54 | */ |
3de91f92 | 55 | umode_t proc_mode; |
d7e09d03 PT |
56 | }; |
57 | ||
58 | struct lprocfs_static_vars { | |
d7e09d03 | 59 | struct lprocfs_vars *obd_vars; |
9b801302 | 60 | struct attribute_group *sysfs_vars; |
d7e09d03 PT |
61 | }; |
62 | ||
63 | /* if we find more consumers this could be generalized */ | |
64 | #define OBD_HIST_MAX 32 | |
65 | struct obd_histogram { | |
66 | spinlock_t oh_lock; | |
67 | unsigned long oh_buckets[OBD_HIST_MAX]; | |
68 | }; | |
69 | ||
70 | enum { | |
71 | BRW_R_PAGES = 0, | |
72 | BRW_W_PAGES, | |
73 | BRW_R_RPC_HIST, | |
74 | BRW_W_RPC_HIST, | |
75 | BRW_R_IO_TIME, | |
76 | BRW_W_IO_TIME, | |
77 | BRW_R_DISCONT_PAGES, | |
78 | BRW_W_DISCONT_PAGES, | |
79 | BRW_R_DISCONT_BLOCKS, | |
80 | BRW_W_DISCONT_BLOCKS, | |
81 | BRW_R_DISK_IOSIZE, | |
82 | BRW_W_DISK_IOSIZE, | |
83 | BRW_R_DIO_FRAGS, | |
84 | BRW_W_DIO_FRAGS, | |
85 | BRW_LAST, | |
86 | }; | |
87 | ||
88 | struct brw_stats { | |
89 | struct obd_histogram hist[BRW_LAST]; | |
90 | }; | |
91 | ||
92 | enum { | |
93 | RENAME_SAMEDIR_SIZE = 0, | |
94 | RENAME_CROSSDIR_SRC_SIZE, | |
95 | RENAME_CROSSDIR_TGT_SIZE, | |
96 | RENAME_LAST, | |
97 | }; | |
98 | ||
99 | struct rename_stats { | |
100 | struct obd_histogram hist[RENAME_LAST]; | |
101 | }; | |
102 | ||
103 | /* An lprocfs counter can be configured using the enum bit masks below. | |
104 | * | |
105 | * LPROCFS_CNTR_EXTERNALLOCK indicates that an external lock already | |
106 | * protects this counter from concurrent updates. If not specified, | |
107 | * lprocfs an internal per-counter lock variable. External locks are | |
108 | * not used to protect counter increments, but are used to protect | |
109 | * counter readout and resets. | |
110 | * | |
111 | * LPROCFS_CNTR_AVGMINMAX indicates a multi-valued counter samples, | |
112 | * (i.e. counter can be incremented by more than "1"). When specified, | |
113 | * the counter maintains min, max and sum in addition to a simple | |
114 | * invocation count. This allows averages to be be computed. | |
115 | * If not specified, the counter is an increment-by-1 counter. | |
116 | * min, max, sum, etc. are not maintained. | |
117 | * | |
118 | * LPROCFS_CNTR_STDDEV indicates that the counter should track sum of | |
119 | * squares (for multi-valued counter samples only). This allows | |
120 | * external computation of standard deviation, but involves a 64-bit | |
121 | * multiply per counter increment. | |
122 | */ | |
123 | ||
124 | enum { | |
125 | LPROCFS_CNTR_EXTERNALLOCK = 0x0001, | |
126 | LPROCFS_CNTR_AVGMINMAX = 0x0002, | |
127 | LPROCFS_CNTR_STDDEV = 0x0004, | |
128 | ||
129 | /* counter data type */ | |
130 | LPROCFS_TYPE_REGS = 0x0100, | |
131 | LPROCFS_TYPE_BYTES = 0x0200, | |
132 | LPROCFS_TYPE_PAGES = 0x0400, | |
133 | LPROCFS_TYPE_CYCLE = 0x0800, | |
134 | }; | |
135 | ||
136 | #define LC_MIN_INIT ((~(__u64)0) >> 1) | |
137 | ||
138 | struct lprocfs_counter_header { | |
139 | unsigned int lc_config; | |
140 | const char *lc_name; /* must be static */ | |
141 | const char *lc_units; /* must be static */ | |
142 | }; | |
143 | ||
144 | struct lprocfs_counter { | |
145 | __s64 lc_count; | |
146 | __s64 lc_min; | |
147 | __s64 lc_max; | |
148 | __s64 lc_sumsquare; | |
149 | /* | |
150 | * Every counter has lc_array_sum[0], while lc_array_sum[1] is only | |
151 | * for irq context counter, i.e. stats with | |
152 | * LPROCFS_STATS_FLAG_IRQ_SAFE flag, its counter need | |
153 | * lc_array_sum[1] | |
154 | */ | |
155 | __s64 lc_array_sum[1]; | |
156 | }; | |
c9f6bb96 | 157 | |
d7e09d03 PT |
158 | #define lc_sum lc_array_sum[0] |
159 | #define lc_sum_irq lc_array_sum[1] | |
160 | ||
161 | struct lprocfs_percpu { | |
162 | #ifndef __GNUC__ | |
163 | __s64 pad; | |
164 | #endif | |
165 | struct lprocfs_counter lp_cntr[0]; | |
166 | }; | |
167 | ||
168 | #define LPROCFS_GET_NUM_CPU 0x0001 | |
169 | #define LPROCFS_GET_SMP_ID 0x0002 | |
170 | ||
171 | enum lprocfs_stats_flags { | |
172 | LPROCFS_STATS_FLAG_NONE = 0x0000, /* per cpu counter */ | |
173 | LPROCFS_STATS_FLAG_NOPERCPU = 0x0001, /* stats have no percpu | |
c56e256d OD |
174 | * area and need locking |
175 | */ | |
d7e09d03 PT |
176 | LPROCFS_STATS_FLAG_IRQ_SAFE = 0x0002, /* alloc need irq safe */ |
177 | }; | |
178 | ||
179 | enum lprocfs_fields_flags { | |
180 | LPROCFS_FIELDS_FLAGS_CONFIG = 0x0001, | |
181 | LPROCFS_FIELDS_FLAGS_SUM = 0x0002, | |
182 | LPROCFS_FIELDS_FLAGS_MIN = 0x0003, | |
183 | LPROCFS_FIELDS_FLAGS_MAX = 0x0004, | |
184 | LPROCFS_FIELDS_FLAGS_AVG = 0x0005, | |
185 | LPROCFS_FIELDS_FLAGS_SUMSQUARE = 0x0006, | |
186 | LPROCFS_FIELDS_FLAGS_COUNT = 0x0007, | |
187 | }; | |
188 | ||
189 | struct lprocfs_stats { | |
190 | /* # of counters */ | |
191 | unsigned short ls_num; | |
192 | /* 1 + the biggest cpu # whose ls_percpu slot has been allocated */ | |
193 | unsigned short ls_biggest_alloc_num; | |
194 | enum lprocfs_stats_flags ls_flags; | |
195 | /* Lock used when there are no percpu stats areas; For percpu stats, | |
c56e256d OD |
196 | * it is used to protect ls_biggest_alloc_num change |
197 | */ | |
d7e09d03 PT |
198 | spinlock_t ls_lock; |
199 | ||
200 | /* has ls_num of counter headers */ | |
201 | struct lprocfs_counter_header *ls_cnt_header; | |
202 | struct lprocfs_percpu *ls_percpu[0]; | |
203 | }; | |
204 | ||
205 | #define OPC_RANGE(seg) (seg ## _LAST_OPC - seg ## _FIRST_OPC) | |
206 | ||
207 | /* Pack all opcodes down into a single monotonically increasing index */ | |
60753e90 MR |
208 | static inline int opcode_offset(__u32 opc) |
209 | { | |
d7e09d03 PT |
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 */ | |
defa220f | 275 | return (opc - FLD_FIRST_OPC + |
d7e09d03 PT |
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)); | |
d7e09d03 PT |
285 | } else { |
286 | /* Unknown Opcode */ | |
287 | return -1; | |
288 | } | |
289 | } | |
290 | ||
d7e09d03 PT |
291 | #define LUSTRE_MAX_OPCODES (OPC_RANGE(OST) + \ |
292 | OPC_RANGE(MDS) + \ | |
293 | OPC_RANGE(LDLM) + \ | |
294 | OPC_RANGE(MGS) + \ | |
295 | OPC_RANGE(OBD) + \ | |
296 | OPC_RANGE(LLOG) + \ | |
297 | OPC_RANGE(SEC) + \ | |
298 | OPC_RANGE(SEQ) + \ | |
299 | OPC_RANGE(SEC) + \ | |
f3478e02 | 300 | OPC_RANGE(FLD)) |
d7e09d03 PT |
301 | |
302 | #define EXTRA_MAX_OPCODES ((PTLRPC_LAST_CNTR - PTLRPC_FIRST_CNTR) + \ | |
303 | OPC_RANGE(EXTRA)) | |
304 | ||
305 | enum { | |
306 | PTLRPC_REQWAIT_CNTR = 0, | |
307 | PTLRPC_REQQDEPTH_CNTR, | |
308 | PTLRPC_REQACTIVE_CNTR, | |
309 | PTLRPC_TIMEOUT, | |
310 | PTLRPC_REQBUF_AVAIL_CNTR, | |
311 | PTLRPC_LAST_CNTR | |
312 | }; | |
313 | ||
314 | #define PTLRPC_FIRST_CNTR PTLRPC_REQWAIT_CNTR | |
315 | ||
316 | enum { | |
317 | LDLM_GLIMPSE_ENQUEUE = 0, | |
318 | LDLM_PLAIN_ENQUEUE, | |
319 | LDLM_EXTENT_ENQUEUE, | |
320 | LDLM_FLOCK_ENQUEUE, | |
321 | LDLM_IBITS_ENQUEUE, | |
322 | MDS_REINT_SETATTR, | |
323 | MDS_REINT_CREATE, | |
324 | MDS_REINT_LINK, | |
325 | MDS_REINT_UNLINK, | |
326 | MDS_REINT_RENAME, | |
327 | MDS_REINT_OPEN, | |
328 | MDS_REINT_SETXATTR, | |
329 | BRW_READ_BYTES, | |
330 | BRW_WRITE_BYTES, | |
331 | EXTRA_LAST_OPC | |
332 | }; | |
333 | ||
334 | #define EXTRA_FIRST_OPC LDLM_GLIMPSE_ENQUEUE | |
335 | /* class_obd.c */ | |
5c8c82f6 | 336 | extern struct dentry *debugfs_lustre_root; |
8b828445 OD |
337 | extern struct kobject *lustre_kobj; |
338 | ||
d7e09d03 PT |
339 | struct obd_device; |
340 | struct obd_histogram; | |
341 | ||
342 | /* Days / hours / mins / seconds format */ | |
343 | struct dhms { | |
1d8cb70c | 344 | int d, h, m, s; |
d7e09d03 | 345 | }; |
23d9a046 AB |
346 | |
347 | static inline void s2dhms(struct dhms *ts, time64_t secs64) | |
d7e09d03 | 348 | { |
23d9a046 AB |
349 | unsigned int secs; |
350 | ||
351 | ts->d = div_u64_rem(secs64, 86400, &secs); | |
d7e09d03 PT |
352 | ts->h = secs / 3600; |
353 | secs = secs % 3600; | |
354 | ts->m = secs / 60; | |
355 | ts->s = secs % 60; | |
356 | } | |
c9f6bb96 | 357 | |
d7e09d03 PT |
358 | #define DHMS_FMT "%dd%dh%02dm%02ds" |
359 | #define DHMS_VARS(x) (x)->d, (x)->h, (x)->m, (x)->s | |
360 | ||
361 | #define JOBSTATS_JOBID_VAR_MAX_LEN 20 | |
362 | #define JOBSTATS_DISABLE "disable" | |
363 | #define JOBSTATS_PROCNAME_UID "procname_uid" | |
76133e66 | 364 | #define JOBSTATS_NODELOCAL "nodelocal" |
d7e09d03 | 365 | |
8150a97f JP |
366 | int lprocfs_write_frac_helper(const char __user *buffer, |
367 | unsigned long count, int *val, int mult); | |
368 | int lprocfs_read_frac_helper(char *buffer, unsigned long count, | |
369 | long val, int mult); | |
370 | int lprocfs_stats_alloc_one(struct lprocfs_stats *stats, unsigned int cpuid); | |
d7e09d03 PT |
371 | /* |
372 | * \return value | |
373 | * < 0 : on error (only possible for opc as LPROCFS_GET_SMP_ID) | |
374 | */ | |
375 | static inline int lprocfs_stats_lock(struct lprocfs_stats *stats, int opc, | |
376 | unsigned long *flags) | |
377 | { | |
378 | int rc = 0; | |
379 | ||
380 | switch (opc) { | |
381 | default: | |
382 | LBUG(); | |
383 | ||
384 | case LPROCFS_GET_SMP_ID: | |
385 | if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) { | |
386 | if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) | |
387 | spin_lock_irqsave(&stats->ls_lock, *flags); | |
388 | else | |
389 | spin_lock(&stats->ls_lock); | |
390 | return 0; | |
391 | } else { | |
392 | unsigned int cpuid = get_cpu(); | |
393 | ||
d2a13989 | 394 | if (unlikely(!stats->ls_percpu[cpuid])) { |
d7e09d03 PT |
395 | rc = lprocfs_stats_alloc_one(stats, cpuid); |
396 | if (rc < 0) { | |
397 | put_cpu(); | |
398 | return rc; | |
399 | } | |
400 | } | |
401 | return cpuid; | |
402 | } | |
403 | ||
404 | case LPROCFS_GET_NUM_CPU: | |
405 | if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) { | |
406 | if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) | |
407 | spin_lock_irqsave(&stats->ls_lock, *flags); | |
408 | else | |
409 | spin_lock(&stats->ls_lock); | |
410 | return 1; | |
d7e09d03 | 411 | } |
71e8dd9a | 412 | return stats->ls_biggest_alloc_num; |
d7e09d03 PT |
413 | } |
414 | } | |
415 | ||
416 | static inline void lprocfs_stats_unlock(struct lprocfs_stats *stats, int opc, | |
417 | unsigned long *flags) | |
418 | { | |
419 | switch (opc) { | |
420 | default: | |
421 | LBUG(); | |
422 | ||
423 | case LPROCFS_GET_SMP_ID: | |
424 | if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) { | |
da24e771 | 425 | if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) |
10457d4b | 426 | spin_unlock_irqrestore(&stats->ls_lock, *flags); |
da24e771 | 427 | else |
d7e09d03 | 428 | spin_unlock(&stats->ls_lock); |
d7e09d03 PT |
429 | } else { |
430 | put_cpu(); | |
431 | } | |
432 | return; | |
433 | ||
434 | case LPROCFS_GET_NUM_CPU: | |
435 | if (stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) { | |
da24e771 | 436 | if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) |
10457d4b | 437 | spin_unlock_irqrestore(&stats->ls_lock, *flags); |
da24e771 | 438 | else |
d7e09d03 | 439 | spin_unlock(&stats->ls_lock); |
d7e09d03 PT |
440 | } |
441 | return; | |
442 | } | |
443 | } | |
444 | ||
445 | static inline unsigned int | |
446 | lprocfs_stats_counter_size(struct lprocfs_stats *stats) | |
447 | { | |
448 | unsigned int percpusize; | |
449 | ||
450 | percpusize = offsetof(struct lprocfs_percpu, lp_cntr[stats->ls_num]); | |
451 | ||
452 | /* irq safe stats need lc_array_sum[1] */ | |
453 | if ((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0) | |
454 | percpusize += stats->ls_num * sizeof(__s64); | |
455 | ||
456 | if ((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0) | |
457 | percpusize = L1_CACHE_ALIGN(percpusize); | |
458 | ||
459 | return percpusize; | |
460 | } | |
461 | ||
462 | static inline struct lprocfs_counter * | |
463 | lprocfs_stats_counter_get(struct lprocfs_stats *stats, unsigned int cpuid, | |
464 | int index) | |
465 | { | |
466 | struct lprocfs_counter *cntr; | |
467 | ||
468 | cntr = &stats->ls_percpu[cpuid]->lp_cntr[index]; | |
469 | ||
470 | if ((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0) | |
471 | cntr = (void *)cntr + index * sizeof(__s64); | |
472 | ||
473 | return cntr; | |
474 | } | |
475 | ||
476 | /* Two optimized LPROCFS counter increment functions are provided: | |
477 | * lprocfs_counter_incr(cntr, value) - optimized for by-one counters | |
478 | * lprocfs_counter_add(cntr) - use for multi-valued counters | |
479 | * Counter data layout allows config flag, counter lock and the | |
480 | * count itself to reside within a single cache line. | |
481 | */ | |
482 | ||
8150a97f JP |
483 | void lprocfs_counter_add(struct lprocfs_stats *stats, int idx, long amount); |
484 | void lprocfs_counter_sub(struct lprocfs_stats *stats, int idx, long amount); | |
d7e09d03 PT |
485 | |
486 | #define lprocfs_counter_incr(stats, idx) \ | |
487 | lprocfs_counter_add(stats, idx, 1) | |
488 | #define lprocfs_counter_decr(stats, idx) \ | |
489 | lprocfs_counter_sub(stats, idx, 1) | |
490 | ||
8150a97f JP |
491 | __s64 lprocfs_read_helper(struct lprocfs_counter *lc, |
492 | struct lprocfs_counter_header *header, | |
493 | enum lprocfs_stats_flags flags, | |
494 | enum lprocfs_fields_flags field); | |
d7e09d03 PT |
495 | static inline __u64 lprocfs_stats_collector(struct lprocfs_stats *stats, |
496 | int idx, | |
497 | enum lprocfs_fields_flags field) | |
498 | { | |
499 | int i; | |
500 | unsigned int num_cpu; | |
501 | unsigned long flags = 0; | |
502 | __u64 ret = 0; | |
503 | ||
d2a13989 | 504 | LASSERT(stats); |
d7e09d03 PT |
505 | |
506 | num_cpu = lprocfs_stats_lock(stats, LPROCFS_GET_NUM_CPU, &flags); | |
507 | for (i = 0; i < num_cpu; i++) { | |
d2a13989 | 508 | if (!stats->ls_percpu[i]) |
d7e09d03 PT |
509 | continue; |
510 | ret += lprocfs_read_helper( | |
511 | lprocfs_stats_counter_get(stats, i, idx), | |
512 | &stats->ls_cnt_header[idx], stats->ls_flags, | |
513 | field); | |
514 | } | |
515 | lprocfs_stats_unlock(stats, LPROCFS_GET_NUM_CPU, &flags); | |
516 | return ret; | |
517 | } | |
518 | ||
519 | extern struct lprocfs_stats * | |
520 | lprocfs_alloc_stats(unsigned int num, enum lprocfs_stats_flags flags); | |
8150a97f JP |
521 | void lprocfs_clear_stats(struct lprocfs_stats *stats); |
522 | void lprocfs_free_stats(struct lprocfs_stats **stats); | |
8150a97f JP |
523 | void lprocfs_counter_init(struct lprocfs_stats *stats, int index, |
524 | unsigned conf, const char *name, const char *units); | |
d7e09d03 | 525 | struct obd_export; |
8150a97f JP |
526 | int lprocfs_exp_cleanup(struct obd_export *exp); |
527 | struct dentry *ldebugfs_add_simple(struct dentry *root, | |
528 | char *name, | |
529 | void *data, | |
530 | struct file_operations *fops); | |
d7e09d03 | 531 | |
8150a97f JP |
532 | int ldebugfs_register_stats(struct dentry *parent, |
533 | const char *name, | |
534 | struct lprocfs_stats *stats); | |
d7e09d03 PT |
535 | |
536 | /* lprocfs_status.c */ | |
8150a97f JP |
537 | int ldebugfs_add_vars(struct dentry *parent, |
538 | struct lprocfs_vars *var, | |
539 | void *data); | |
540 | ||
541 | struct dentry *ldebugfs_register(const char *name, | |
542 | struct dentry *parent, | |
543 | struct lprocfs_vars *list, | |
544 | void *data); | |
545 | ||
546 | void ldebugfs_remove(struct dentry **entryp); | |
547 | ||
548 | int lprocfs_obd_setup(struct obd_device *obd, struct lprocfs_vars *list, | |
549 | struct attribute_group *attrs); | |
550 | int lprocfs_obd_cleanup(struct obd_device *obd); | |
551 | ||
552 | int ldebugfs_seq_create(struct dentry *parent, | |
553 | const char *name, | |
554 | umode_t mode, | |
555 | const struct file_operations *seq_fops, | |
556 | void *data); | |
557 | int ldebugfs_obd_seq_create(struct obd_device *dev, | |
558 | const char *name, | |
559 | umode_t mode, | |
560 | const struct file_operations *seq_fops, | |
561 | void *data); | |
d7e09d03 PT |
562 | |
563 | /* Generic callbacks */ | |
564 | ||
8150a97f JP |
565 | int lprocfs_rd_uint(struct seq_file *m, void *data); |
566 | int lprocfs_wr_uint(struct file *file, const char __user *buffer, | |
567 | unsigned long count, void *data); | |
8150a97f JP |
568 | int lprocfs_rd_server_uuid(struct seq_file *m, void *data); |
569 | int lprocfs_rd_conn_uuid(struct seq_file *m, void *data); | |
570 | int lprocfs_rd_import(struct seq_file *m, void *data); | |
571 | int lprocfs_rd_state(struct seq_file *m, void *data); | |
572 | int lprocfs_rd_connect_flags(struct seq_file *m, void *data); | |
73bb1da6 | 573 | |
d7e09d03 | 574 | struct adaptive_timeout; |
8150a97f JP |
575 | int lprocfs_at_hist_helper(struct seq_file *m, struct adaptive_timeout *at); |
576 | int lprocfs_rd_timeouts(struct seq_file *m, void *data); | |
8150a97f JP |
577 | int lprocfs_wr_ping(struct file *file, const char __user *buffer, |
578 | size_t count, loff_t *off); | |
579 | int lprocfs_wr_import(struct file *file, const char __user *buffer, | |
73bb1da6 | 580 | size_t count, loff_t *off); |
8150a97f JP |
581 | int lprocfs_rd_pinger_recov(struct seq_file *m, void *n); |
582 | int lprocfs_wr_pinger_recov(struct file *file, const char __user *buffer, | |
583 | size_t count, loff_t *off); | |
d7e09d03 PT |
584 | |
585 | /* Statfs helpers */ | |
d7e09d03 | 586 | |
8150a97f JP |
587 | int lprocfs_write_helper(const char __user *buffer, unsigned long count, |
588 | int *val); | |
8150a97f JP |
589 | int lprocfs_write_u64_helper(const char __user *buffer, |
590 | unsigned long count, __u64 *val); | |
cadffe60 | 591 | int lprocfs_write_frac_u64_helper(const char __user *buffer, |
8150a97f JP |
592 | unsigned long count, |
593 | __u64 *val, int mult); | |
594 | char *lprocfs_find_named_value(const char *buffer, const char *name, | |
595 | size_t *count); | |
d7e09d03 PT |
596 | void lprocfs_oh_tally(struct obd_histogram *oh, unsigned int value); |
597 | void lprocfs_oh_tally_log2(struct obd_histogram *oh, unsigned int value); | |
598 | void lprocfs_oh_clear(struct obd_histogram *oh); | |
599 | unsigned long lprocfs_oh_sum(struct obd_histogram *oh); | |
600 | ||
601 | void lprocfs_stats_collect(struct lprocfs_stats *stats, int idx, | |
602 | struct lprocfs_counter *cnt); | |
603 | ||
8150a97f JP |
604 | int lprocfs_single_release(struct inode *, struct file *); |
605 | int lprocfs_seq_release(struct inode *, struct file *); | |
d7e09d03 | 606 | |
d7e09d03 | 607 | /* write the name##_seq_show function, call LPROC_SEQ_FOPS_RO for read-only |
c56e256d OD |
608 | * proc entries; otherwise, you will define name##_seq_write function also for |
609 | * a read-write proc entry, and then call LPROC_SEQ_SEQ instead. Finally, | |
610 | * call ldebugfs_obd_seq_create(obd, filename, 0444, &name#_fops, data); | |
611 | */ | |
73bb1da6 | 612 | #define __LPROC_SEQ_FOPS(name, custom_seq_write) \ |
06bf61b2 | 613 | static int name##_single_open(struct inode *inode, struct file *file) \ |
73bb1da6 | 614 | { \ |
e4ba525e | 615 | return single_open(file, name##_seq_show, inode->i_private); \ |
73bb1da6 | 616 | } \ |
b9c98cfa | 617 | static struct file_operations name##_fops = { \ |
d7e09d03 PT |
618 | .owner = THIS_MODULE, \ |
619 | .open = name##_single_open, \ | |
620 | .read = seq_read, \ | |
621 | .write = custom_seq_write, \ | |
622 | .llseek = seq_lseek, \ | |
623 | .release = lprocfs_single_release, \ | |
624 | } | |
625 | ||
626 | #define LPROC_SEQ_FOPS_RO(name) __LPROC_SEQ_FOPS(name, NULL) | |
627 | #define LPROC_SEQ_FOPS(name) __LPROC_SEQ_FOPS(name, name##_seq_write) | |
628 | ||
73bb1da6 PT |
629 | #define LPROC_SEQ_FOPS_RO_TYPE(name, type) \ |
630 | static int name##_##type##_seq_show(struct seq_file *m, void *v)\ | |
631 | { \ | |
632 | return lprocfs_rd_##type(m, m->private); \ | |
633 | } \ | |
634 | LPROC_SEQ_FOPS_RO(name##_##type) | |
635 | ||
636 | #define LPROC_SEQ_FOPS_RW_TYPE(name, type) \ | |
637 | static int name##_##type##_seq_show(struct seq_file *m, void *v)\ | |
638 | { \ | |
639 | return lprocfs_rd_##type(m, m->private); \ | |
640 | } \ | |
641 | static ssize_t name##_##type##_seq_write(struct file *file, \ | |
e84962e3 TL |
642 | const char __user *buffer, size_t count, \ |
643 | loff_t *off) \ | |
73bb1da6 PT |
644 | { \ |
645 | struct seq_file *seq = file->private_data; \ | |
646 | return lprocfs_wr_##type(file, buffer, \ | |
647 | count, seq->private); \ | |
648 | } \ | |
06133e80 | 649 | LPROC_SEQ_FOPS(name##_##type) |
73bb1da6 PT |
650 | |
651 | #define LPROC_SEQ_FOPS_WR_ONLY(name, type) \ | |
652 | static ssize_t name##_##type##_write(struct file *file, \ | |
e84962e3 TL |
653 | const char __user *buffer, size_t count, \ |
654 | loff_t *off) \ | |
73bb1da6 PT |
655 | { \ |
656 | return lprocfs_wr_##type(file, buffer, count, off); \ | |
657 | } \ | |
06bf61b2 | 658 | static int name##_##type##_open(struct inode *inode, struct file *file) \ |
73bb1da6 | 659 | { \ |
e4ba525e | 660 | return single_open(file, NULL, inode->i_private); \ |
73bb1da6 | 661 | } \ |
b9c98cfa | 662 | static struct file_operations name##_##type##_fops = { \ |
73bb1da6 PT |
663 | .open = name##_##type##_open, \ |
664 | .write = name##_##type##_write, \ | |
665 | .release = lprocfs_single_release, \ | |
06133e80 | 666 | } |
73bb1da6 | 667 | |
5e66f70e OD |
668 | struct lustre_attr { |
669 | struct attribute attr; | |
670 | ssize_t (*show)(struct kobject *kobj, struct attribute *attr, | |
671 | char *buf); | |
672 | ssize_t (*store)(struct kobject *kobj, struct attribute *attr, | |
673 | const char *buf, size_t len); | |
674 | }; | |
675 | ||
676 | #define LUSTRE_ATTR(name, mode, show, store) \ | |
677 | static struct lustre_attr lustre_attr_##name = __ATTR(name, mode, show, store) | |
678 | ||
679 | #define LUSTRE_RO_ATTR(name) LUSTRE_ATTR(name, 0444, name##_show, NULL) | |
680 | #define LUSTRE_RW_ATTR(name) LUSTRE_ATTR(name, 0644, name##_show, name##_store) | |
681 | ||
5e66f70e OD |
682 | extern const struct sysfs_ops lustre_sysfs_ops; |
683 | ||
c948390f GP |
684 | struct root_squash_info; |
685 | int lprocfs_wr_root_squash(const char *buffer, unsigned long count, | |
686 | struct root_squash_info *squash, char *name); | |
687 | int lprocfs_wr_nosquash_nids(const char *buffer, unsigned long count, | |
688 | struct root_squash_info *squash, char *name); | |
689 | ||
d7e09d03 | 690 | /* all quota proc functions */ |
8150a97f JP |
691 | int lprocfs_quota_rd_bunit(char *page, char **start, |
692 | loff_t off, int count, | |
693 | int *eof, void *data); | |
694 | int lprocfs_quota_wr_bunit(struct file *file, const char *buffer, | |
695 | unsigned long count, void *data); | |
696 | int lprocfs_quota_rd_btune(char *page, char **start, | |
697 | loff_t off, int count, | |
698 | int *eof, void *data); | |
699 | int lprocfs_quota_wr_btune(struct file *file, const char *buffer, | |
700 | unsigned long count, void *data); | |
701 | int lprocfs_quota_rd_iunit(char *page, char **start, | |
702 | loff_t off, int count, | |
703 | int *eof, void *data); | |
704 | int lprocfs_quota_wr_iunit(struct file *file, const char *buffer, | |
705 | unsigned long count, void *data); | |
706 | int lprocfs_quota_rd_itune(char *page, char **start, | |
707 | loff_t off, int count, | |
708 | int *eof, void *data); | |
709 | int lprocfs_quota_wr_itune(struct file *file, const char *buffer, | |
710 | unsigned long count, void *data); | |
711 | int lprocfs_quota_rd_type(char *page, char **start, loff_t off, int count, | |
712 | int *eof, void *data); | |
713 | int lprocfs_quota_wr_type(struct file *file, const char *buffer, | |
714 | unsigned long count, void *data); | |
715 | int lprocfs_quota_rd_switch_seconds(char *page, char **start, loff_t off, | |
716 | int count, int *eof, void *data); | |
717 | int lprocfs_quota_wr_switch_seconds(struct file *file, | |
718 | const char *buffer, | |
719 | unsigned long count, void *data); | |
720 | int lprocfs_quota_rd_sync_blk(char *page, char **start, loff_t off, | |
721 | int count, int *eof, void *data); | |
722 | int lprocfs_quota_wr_sync_blk(struct file *file, const char *buffer, | |
723 | unsigned long count, void *data); | |
724 | int lprocfs_quota_rd_switch_qs(char *page, char **start, loff_t off, | |
725 | int count, int *eof, void *data); | |
726 | int lprocfs_quota_wr_switch_qs(struct file *file, | |
727 | const char *buffer, unsigned long count, | |
728 | void *data); | |
729 | int lprocfs_quota_rd_boundary_factor(char *page, char **start, loff_t off, | |
d7e09d03 | 730 | int count, int *eof, void *data); |
8150a97f JP |
731 | int lprocfs_quota_wr_boundary_factor(struct file *file, |
732 | const char *buffer, unsigned long count, | |
733 | void *data); | |
734 | int lprocfs_quota_rd_least_bunit(char *page, char **start, loff_t off, | |
735 | int count, int *eof, void *data); | |
736 | int lprocfs_quota_wr_least_bunit(struct file *file, | |
737 | const char *buffer, unsigned long count, | |
738 | void *data); | |
739 | int lprocfs_quota_rd_least_iunit(char *page, char **start, loff_t off, | |
740 | int count, int *eof, void *data); | |
741 | int lprocfs_quota_wr_least_iunit(struct file *file, | |
742 | const char *buffer, unsigned long count, | |
743 | void *data); | |
744 | int lprocfs_quota_rd_qs_factor(char *page, char **start, loff_t off, | |
745 | int count, int *eof, void *data); | |
746 | int lprocfs_quota_wr_qs_factor(struct file *file, | |
747 | const char *buffer, unsigned long count, | |
748 | void *data); | |
d7e09d03 | 749 | #endif /* LPROCFS_SNMP_H */ |