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) 2002, 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 #define DEBUG_SUBSYSTEM S_CLASS
37
38 #include <linux/statfs.h>
39 #include "../include/obd_cksum.h"
40 #include "../include/obd_class.h"
41 #include "../include/lprocfs_status.h"
42 #include <linux/seq_file.h>
43 #include "osc_internal.h"
44
active_show(struct kobject * kobj,struct attribute * attr,char * buf)45 static ssize_t active_show(struct kobject *kobj, struct attribute *attr,
46 char *buf)
47 {
48 struct obd_device *dev = container_of(kobj, struct obd_device,
49 obd_kobj);
50
51 return sprintf(buf, "%d\n", !dev->u.cli.cl_import->imp_deactive);
52 }
53
active_store(struct kobject * kobj,struct attribute * attr,const char * buffer,size_t count)54 static ssize_t active_store(struct kobject *kobj, struct attribute *attr,
55 const char *buffer,
56 size_t count)
57 {
58 struct obd_device *dev = container_of(kobj, struct obd_device,
59 obd_kobj);
60 int rc;
61 unsigned long val;
62
63 rc = kstrtoul(buffer, 10, &val);
64 if (rc)
65 return rc;
66 if (val > 1)
67 return -ERANGE;
68
69 /* opposite senses */
70 if (dev->u.cli.cl_import->imp_deactive == val)
71 rc = ptlrpc_set_import_active(dev->u.cli.cl_import, val);
72 else
73 CDEBUG(D_CONFIG, "activate %ld: ignoring repeat request\n",
74 val);
75
76 return count;
77 }
78 LUSTRE_RW_ATTR(active);
79
max_rpcs_in_flight_show(struct kobject * kobj,struct attribute * attr,char * buf)80 static ssize_t max_rpcs_in_flight_show(struct kobject *kobj,
81 struct attribute *attr,
82 char *buf)
83 {
84 struct obd_device *dev = container_of(kobj, struct obd_device,
85 obd_kobj);
86 struct client_obd *cli = &dev->u.cli;
87
88 return sprintf(buf, "%u\n", cli->cl_max_rpcs_in_flight);
89 }
90
max_rpcs_in_flight_store(struct kobject * kobj,struct attribute * attr,const char * buffer,size_t count)91 static ssize_t max_rpcs_in_flight_store(struct kobject *kobj,
92 struct attribute *attr,
93 const char *buffer,
94 size_t count)
95 {
96 struct obd_device *dev = container_of(kobj, struct obd_device,
97 obd_kobj);
98 struct client_obd *cli = &dev->u.cli;
99 int rc;
100 unsigned long val;
101 int adding, added, req_count;
102
103 rc = kstrtoul(buffer, 10, &val);
104 if (rc)
105 return rc;
106
107 if (val < 1 || val > OSC_MAX_RIF_MAX)
108 return -ERANGE;
109
110 adding = val - cli->cl_max_rpcs_in_flight;
111 req_count = atomic_read(&osc_pool_req_count);
112 if (adding > 0 && req_count < osc_reqpool_maxreqcount) {
113 /*
114 * There might be some race which will cause over-limit
115 * allocation, but it is fine.
116 */
117 if (req_count + adding > osc_reqpool_maxreqcount)
118 adding = osc_reqpool_maxreqcount - req_count;
119
120 added = osc_rq_pool->prp_populate(osc_rq_pool, adding);
121 atomic_add(added, &osc_pool_req_count);
122 }
123
124 client_obd_list_lock(&cli->cl_loi_list_lock);
125 cli->cl_max_rpcs_in_flight = val;
126 client_obd_list_unlock(&cli->cl_loi_list_lock);
127
128 return count;
129 }
130 LUSTRE_RW_ATTR(max_rpcs_in_flight);
131
max_dirty_mb_show(struct kobject * kobj,struct attribute * attr,char * buf)132 static ssize_t max_dirty_mb_show(struct kobject *kobj,
133 struct attribute *attr,
134 char *buf)
135 {
136 struct obd_device *dev = container_of(kobj, struct obd_device,
137 obd_kobj);
138 struct client_obd *cli = &dev->u.cli;
139 long val;
140 int mult;
141
142 client_obd_list_lock(&cli->cl_loi_list_lock);
143 val = cli->cl_dirty_max;
144 client_obd_list_unlock(&cli->cl_loi_list_lock);
145
146 mult = 1 << 20;
147 return lprocfs_read_frac_helper(buf, PAGE_SIZE, val, mult);
148 }
149
max_dirty_mb_store(struct kobject * kobj,struct attribute * attr,const char * buffer,size_t count)150 static ssize_t max_dirty_mb_store(struct kobject *kobj,
151 struct attribute *attr,
152 const char *buffer,
153 size_t count)
154 {
155 struct obd_device *dev = container_of(kobj, struct obd_device,
156 obd_kobj);
157 struct client_obd *cli = &dev->u.cli;
158 int rc;
159 unsigned long pages_number;
160
161 rc = kstrtoul(buffer, 10, &pages_number);
162 if (rc)
163 return rc;
164
165 pages_number *= 1 << (20 - PAGE_CACHE_SHIFT); /* MB -> pages */
166
167 if (pages_number <= 0 ||
168 pages_number > OSC_MAX_DIRTY_MB_MAX << (20 - PAGE_CACHE_SHIFT) ||
169 pages_number > totalram_pages / 4) /* 1/4 of RAM */
170 return -ERANGE;
171
172 client_obd_list_lock(&cli->cl_loi_list_lock);
173 cli->cl_dirty_max = (u32)(pages_number << PAGE_CACHE_SHIFT);
174 osc_wake_cache_waiters(cli);
175 client_obd_list_unlock(&cli->cl_loi_list_lock);
176
177 return count;
178 }
179 LUSTRE_RW_ATTR(max_dirty_mb);
180
osc_cached_mb_seq_show(struct seq_file * m,void * v)181 static int osc_cached_mb_seq_show(struct seq_file *m, void *v)
182 {
183 struct obd_device *dev = m->private;
184 struct client_obd *cli = &dev->u.cli;
185 int shift = 20 - PAGE_CACHE_SHIFT;
186
187 seq_printf(m,
188 "used_mb: %d\n"
189 "busy_cnt: %d\n",
190 (atomic_read(&cli->cl_lru_in_list) +
191 atomic_read(&cli->cl_lru_busy)) >> shift,
192 atomic_read(&cli->cl_lru_busy));
193
194 return 0;
195 }
196
197 /* shrink the number of caching pages to a specific number */
osc_cached_mb_seq_write(struct file * file,const char __user * buffer,size_t count,loff_t * off)198 static ssize_t osc_cached_mb_seq_write(struct file *file,
199 const char __user *buffer,
200 size_t count, loff_t *off)
201 {
202 struct obd_device *dev = ((struct seq_file *)file->private_data)->private;
203 struct client_obd *cli = &dev->u.cli;
204 int pages_number, mult, rc;
205 char kernbuf[128];
206
207 if (count >= sizeof(kernbuf))
208 return -EINVAL;
209
210 if (copy_from_user(kernbuf, buffer, count))
211 return -EFAULT;
212 kernbuf[count] = 0;
213
214 mult = 1 << (20 - PAGE_CACHE_SHIFT);
215 buffer += lprocfs_find_named_value(kernbuf, "used_mb:", &count) -
216 kernbuf;
217 rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
218 if (rc)
219 return rc;
220
221 if (pages_number < 0)
222 return -ERANGE;
223
224 rc = atomic_read(&cli->cl_lru_in_list) - pages_number;
225 if (rc > 0)
226 (void)osc_lru_shrink(cli, rc);
227
228 return count;
229 }
230
231 LPROC_SEQ_FOPS(osc_cached_mb);
232
cur_dirty_bytes_show(struct kobject * kobj,struct attribute * attr,char * buf)233 static ssize_t cur_dirty_bytes_show(struct kobject *kobj,
234 struct attribute *attr,
235 char *buf)
236 {
237 struct obd_device *dev = container_of(kobj, struct obd_device,
238 obd_kobj);
239 struct client_obd *cli = &dev->u.cli;
240 int len;
241
242 client_obd_list_lock(&cli->cl_loi_list_lock);
243 len = sprintf(buf, "%lu\n", cli->cl_dirty);
244 client_obd_list_unlock(&cli->cl_loi_list_lock);
245
246 return len;
247 }
248 LUSTRE_RO_ATTR(cur_dirty_bytes);
249
cur_grant_bytes_show(struct kobject * kobj,struct attribute * attr,char * buf)250 static ssize_t cur_grant_bytes_show(struct kobject *kobj,
251 struct attribute *attr,
252 char *buf)
253 {
254 struct obd_device *dev = container_of(kobj, struct obd_device,
255 obd_kobj);
256 struct client_obd *cli = &dev->u.cli;
257 int len;
258
259 client_obd_list_lock(&cli->cl_loi_list_lock);
260 len = sprintf(buf, "%lu\n", cli->cl_avail_grant);
261 client_obd_list_unlock(&cli->cl_loi_list_lock);
262
263 return len;
264 }
265
cur_grant_bytes_store(struct kobject * kobj,struct attribute * attr,const char * buffer,size_t count)266 static ssize_t cur_grant_bytes_store(struct kobject *kobj,
267 struct attribute *attr,
268 const char *buffer,
269 size_t count)
270 {
271 struct obd_device *obd = container_of(kobj, struct obd_device,
272 obd_kobj);
273 struct client_obd *cli = &obd->u.cli;
274 int rc;
275 unsigned long long val;
276
277 rc = kstrtoull(buffer, 10, &val);
278 if (rc)
279 return rc;
280
281 /* this is only for shrinking grant */
282 client_obd_list_lock(&cli->cl_loi_list_lock);
283 if (val >= cli->cl_avail_grant) {
284 client_obd_list_unlock(&cli->cl_loi_list_lock);
285 return -EINVAL;
286 }
287 client_obd_list_unlock(&cli->cl_loi_list_lock);
288
289 if (cli->cl_import->imp_state == LUSTRE_IMP_FULL)
290 rc = osc_shrink_grant_to_target(cli, val);
291 if (rc)
292 return rc;
293 return count;
294 }
295 LUSTRE_RW_ATTR(cur_grant_bytes);
296
cur_lost_grant_bytes_show(struct kobject * kobj,struct attribute * attr,char * buf)297 static ssize_t cur_lost_grant_bytes_show(struct kobject *kobj,
298 struct attribute *attr,
299 char *buf)
300 {
301 struct obd_device *dev = container_of(kobj, struct obd_device,
302 obd_kobj);
303 struct client_obd *cli = &dev->u.cli;
304 int len;
305
306 client_obd_list_lock(&cli->cl_loi_list_lock);
307 len = sprintf(buf, "%lu\n", cli->cl_lost_grant);
308 client_obd_list_unlock(&cli->cl_loi_list_lock);
309
310 return len;
311 }
312 LUSTRE_RO_ATTR(cur_lost_grant_bytes);
313
grant_shrink_interval_show(struct kobject * kobj,struct attribute * attr,char * buf)314 static ssize_t grant_shrink_interval_show(struct kobject *kobj,
315 struct attribute *attr,
316 char *buf)
317 {
318 struct obd_device *obd = container_of(kobj, struct obd_device,
319 obd_kobj);
320
321 return sprintf(buf, "%d\n", obd->u.cli.cl_grant_shrink_interval);
322 }
323
grant_shrink_interval_store(struct kobject * kobj,struct attribute * attr,const char * buffer,size_t count)324 static ssize_t grant_shrink_interval_store(struct kobject *kobj,
325 struct attribute *attr,
326 const char *buffer,
327 size_t count)
328 {
329 struct obd_device *obd = container_of(kobj, struct obd_device,
330 obd_kobj);
331 int rc;
332 unsigned long val;
333
334 rc = kstrtoul(buffer, 10, &val);
335 if (rc)
336 return rc;
337
338 if (val <= 0)
339 return -ERANGE;
340
341 obd->u.cli.cl_grant_shrink_interval = val;
342
343 return count;
344 }
345 LUSTRE_RW_ATTR(grant_shrink_interval);
346
checksums_show(struct kobject * kobj,struct attribute * attr,char * buf)347 static ssize_t checksums_show(struct kobject *kobj,
348 struct attribute *attr,
349 char *buf)
350 {
351 struct obd_device *obd = container_of(kobj, struct obd_device,
352 obd_kobj);
353
354 return sprintf(buf, "%d\n", obd->u.cli.cl_checksum ? 1 : 0);
355 }
356
checksums_store(struct kobject * kobj,struct attribute * attr,const char * buffer,size_t count)357 static ssize_t checksums_store(struct kobject *kobj,
358 struct attribute *attr,
359 const char *buffer,
360 size_t count)
361 {
362 struct obd_device *obd = container_of(kobj, struct obd_device,
363 obd_kobj);
364 int rc;
365 unsigned long val;
366
367 rc = kstrtoul(buffer, 10, &val);
368 if (rc)
369 return rc;
370
371 obd->u.cli.cl_checksum = (val ? 1 : 0);
372
373 return count;
374 }
375 LUSTRE_RW_ATTR(checksums);
376
osc_checksum_type_seq_show(struct seq_file * m,void * v)377 static int osc_checksum_type_seq_show(struct seq_file *m, void *v)
378 {
379 struct obd_device *obd = m->private;
380 int i;
381
382 DECLARE_CKSUM_NAME;
383
384 if (obd == NULL)
385 return 0;
386
387 for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
388 if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
389 continue;
390 if (obd->u.cli.cl_cksum_type == (1 << i))
391 seq_printf(m, "[%s] ", cksum_name[i]);
392 else
393 seq_printf(m, "%s ", cksum_name[i]);
394 }
395 seq_putc(m, '\n');
396 return 0;
397 }
398
osc_checksum_type_seq_write(struct file * file,const char __user * buffer,size_t count,loff_t * off)399 static ssize_t osc_checksum_type_seq_write(struct file *file,
400 const char __user *buffer,
401 size_t count, loff_t *off)
402 {
403 struct obd_device *obd = ((struct seq_file *)file->private_data)->private;
404 int i;
405
406 DECLARE_CKSUM_NAME;
407 char kernbuf[10];
408
409 if (obd == NULL)
410 return 0;
411
412 if (count > sizeof(kernbuf) - 1)
413 return -EINVAL;
414 if (copy_from_user(kernbuf, buffer, count))
415 return -EFAULT;
416 if (count > 0 && kernbuf[count - 1] == '\n')
417 kernbuf[count - 1] = '\0';
418 else
419 kernbuf[count] = '\0';
420
421 for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
422 if (((1 << i) & obd->u.cli.cl_supp_cksum_types) == 0)
423 continue;
424 if (!strcmp(kernbuf, cksum_name[i])) {
425 obd->u.cli.cl_cksum_type = 1 << i;
426 return count;
427 }
428 }
429 return -EINVAL;
430 }
431
432 LPROC_SEQ_FOPS(osc_checksum_type);
433
resend_count_show(struct kobject * kobj,struct attribute * attr,char * buf)434 static ssize_t resend_count_show(struct kobject *kobj,
435 struct attribute *attr,
436 char *buf)
437 {
438 struct obd_device *obd = container_of(kobj, struct obd_device,
439 obd_kobj);
440
441 return sprintf(buf, "%u\n", atomic_read(&obd->u.cli.cl_resends));
442 }
443
resend_count_store(struct kobject * kobj,struct attribute * attr,const char * buffer,size_t count)444 static ssize_t resend_count_store(struct kobject *kobj,
445 struct attribute *attr,
446 const char *buffer,
447 size_t count)
448 {
449 struct obd_device *obd = container_of(kobj, struct obd_device,
450 obd_kobj);
451 int rc;
452 unsigned long val;
453
454 rc = kstrtoul(buffer, 10, &val);
455 if (rc)
456 return rc;
457
458 atomic_set(&obd->u.cli.cl_resends, val);
459
460 return count;
461 }
462 LUSTRE_RW_ATTR(resend_count);
463
contention_seconds_show(struct kobject * kobj,struct attribute * attr,char * buf)464 static ssize_t contention_seconds_show(struct kobject *kobj,
465 struct attribute *attr,
466 char *buf)
467 {
468 struct obd_device *obd = container_of(kobj, struct obd_device,
469 obd_kobj);
470 struct osc_device *od = obd2osc_dev(obd);
471
472 return sprintf(buf, "%u\n", od->od_contention_time);
473 }
474
contention_seconds_store(struct kobject * kobj,struct attribute * attr,const char * buffer,size_t count)475 static ssize_t contention_seconds_store(struct kobject *kobj,
476 struct attribute *attr,
477 const char *buffer,
478 size_t count)
479 {
480 struct obd_device *obd = container_of(kobj, struct obd_device,
481 obd_kobj);
482 struct osc_device *od = obd2osc_dev(obd);
483
484 return lprocfs_write_helper(buffer, count, &od->od_contention_time) ?:
485 count;
486 }
487 LUSTRE_RW_ATTR(contention_seconds);
488
lockless_truncate_show(struct kobject * kobj,struct attribute * attr,char * buf)489 static ssize_t lockless_truncate_show(struct kobject *kobj,
490 struct attribute *attr,
491 char *buf)
492 {
493 struct obd_device *obd = container_of(kobj, struct obd_device,
494 obd_kobj);
495 struct osc_device *od = obd2osc_dev(obd);
496
497 return sprintf(buf, "%u\n", od->od_lockless_truncate);
498 }
499
lockless_truncate_store(struct kobject * kobj,struct attribute * attr,const char * buffer,size_t count)500 static ssize_t lockless_truncate_store(struct kobject *kobj,
501 struct attribute *attr,
502 const char *buffer,
503 size_t count)
504 {
505 struct obd_device *obd = container_of(kobj, struct obd_device,
506 obd_kobj);
507 struct osc_device *od = obd2osc_dev(obd);
508
509 return lprocfs_write_helper(buffer, count, &od->od_lockless_truncate) ?:
510 count;
511 }
512 LUSTRE_RW_ATTR(lockless_truncate);
513
destroys_in_flight_show(struct kobject * kobj,struct attribute * attr,char * buf)514 static ssize_t destroys_in_flight_show(struct kobject *kobj,
515 struct attribute *attr,
516 char *buf)
517 {
518 struct obd_device *obd = container_of(kobj, struct obd_device,
519 obd_kobj);
520
521 return sprintf(buf, "%u\n",
522 atomic_read(&obd->u.cli.cl_destroy_in_flight));
523 }
524 LUSTRE_RO_ATTR(destroys_in_flight);
525
max_pages_per_rpc_show(struct kobject * kobj,struct attribute * attr,char * buf)526 static ssize_t max_pages_per_rpc_show(struct kobject *kobj,
527 struct attribute *attr,
528 char *buf)
529 {
530 struct obd_device *dev = container_of(kobj, struct obd_device,
531 obd_kobj);
532 struct client_obd *cli = &dev->u.cli;
533
534 return sprintf(buf, "%d\n", cli->cl_max_pages_per_rpc);
535 }
536
max_pages_per_rpc_store(struct kobject * kobj,struct attribute * attr,const char * buffer,size_t count)537 static ssize_t max_pages_per_rpc_store(struct kobject *kobj,
538 struct attribute *attr,
539 const char *buffer,
540 size_t count)
541 {
542 struct obd_device *dev = container_of(kobj, struct obd_device,
543 obd_kobj);
544 struct client_obd *cli = &dev->u.cli;
545 struct obd_connect_data *ocd = &cli->cl_import->imp_connect_data;
546 int chunk_mask, rc;
547 unsigned long long val;
548
549 rc = kstrtoull(buffer, 10, &val);
550 if (rc)
551 return rc;
552
553 /* if the max_pages is specified in bytes, convert to pages */
554 if (val >= ONE_MB_BRW_SIZE)
555 val >>= PAGE_CACHE_SHIFT;
556
557 chunk_mask = ~((1 << (cli->cl_chunkbits - PAGE_CACHE_SHIFT)) - 1);
558 /* max_pages_per_rpc must be chunk aligned */
559 val = (val + ~chunk_mask) & chunk_mask;
560 if (val == 0 || val > ocd->ocd_brw_size >> PAGE_CACHE_SHIFT) {
561 return -ERANGE;
562 }
563 client_obd_list_lock(&cli->cl_loi_list_lock);
564 cli->cl_max_pages_per_rpc = val;
565 client_obd_list_unlock(&cli->cl_loi_list_lock);
566
567 return count;
568 }
569 LUSTRE_RW_ATTR(max_pages_per_rpc);
570
571 LPROC_SEQ_FOPS_RO_TYPE(osc, connect_flags);
572 LPROC_SEQ_FOPS_RO_TYPE(osc, server_uuid);
573 LPROC_SEQ_FOPS_RO_TYPE(osc, conn_uuid);
574 LPROC_SEQ_FOPS_RO_TYPE(osc, timeouts);
575 LPROC_SEQ_FOPS_RO_TYPE(osc, state);
576
577 LPROC_SEQ_FOPS_WR_ONLY(osc, ping);
578
579 LPROC_SEQ_FOPS_RW_TYPE(osc, import);
580 LPROC_SEQ_FOPS_RW_TYPE(osc, pinger_recov);
581
582 static struct lprocfs_vars lprocfs_osc_obd_vars[] = {
583 { "ping", &osc_ping_fops, NULL, 0222 },
584 { "connect_flags", &osc_connect_flags_fops, NULL, 0 },
585 /*{ "filegroups", lprocfs_rd_filegroups, NULL, 0 },*/
586 { "ost_server_uuid", &osc_server_uuid_fops, NULL, 0 },
587 { "ost_conn_uuid", &osc_conn_uuid_fops, NULL, 0 },
588 { "osc_cached_mb", &osc_cached_mb_fops, NULL },
589 { "checksum_type", &osc_checksum_type_fops, NULL },
590 { "timeouts", &osc_timeouts_fops, NULL, 0 },
591 { "import", &osc_import_fops, NULL },
592 { "state", &osc_state_fops, NULL, 0 },
593 { "pinger_recov", &osc_pinger_recov_fops, NULL },
594 { NULL }
595 };
596
597 #define pct(a, b) (b ? a * 100 / b : 0)
598
osc_rpc_stats_seq_show(struct seq_file * seq,void * v)599 static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v)
600 {
601 struct timespec64 now;
602 struct obd_device *dev = seq->private;
603 struct client_obd *cli = &dev->u.cli;
604 unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
605 int i;
606
607 ktime_get_real_ts64(&now);
608
609 client_obd_list_lock(&cli->cl_loi_list_lock);
610
611 seq_printf(seq, "snapshot_time: %llu.%9lu (secs.usecs)\n",
612 (s64)now.tv_sec, (unsigned long)now.tv_nsec);
613 seq_printf(seq, "read RPCs in flight: %d\n",
614 cli->cl_r_in_flight);
615 seq_printf(seq, "write RPCs in flight: %d\n",
616 cli->cl_w_in_flight);
617 seq_printf(seq, "pending write pages: %d\n",
618 atomic_read(&cli->cl_pending_w_pages));
619 seq_printf(seq, "pending read pages: %d\n",
620 atomic_read(&cli->cl_pending_r_pages));
621
622 seq_puts(seq, "\n\t\t\tread\t\t\twrite\n");
623 seq_puts(seq, "pages per rpc rpcs % cum % |");
624 seq_puts(seq, " rpcs % cum %\n");
625
626 read_tot = lprocfs_oh_sum(&cli->cl_read_page_hist);
627 write_tot = lprocfs_oh_sum(&cli->cl_write_page_hist);
628
629 read_cum = 0;
630 write_cum = 0;
631 for (i = 0; i < OBD_HIST_MAX; i++) {
632 unsigned long r = cli->cl_read_page_hist.oh_buckets[i];
633 unsigned long w = cli->cl_write_page_hist.oh_buckets[i];
634
635 read_cum += r;
636 write_cum += w;
637 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
638 1 << i, r, pct(r, read_tot),
639 pct(read_cum, read_tot), w,
640 pct(w, write_tot),
641 pct(write_cum, write_tot));
642 if (read_cum == read_tot && write_cum == write_tot)
643 break;
644 }
645
646 seq_puts(seq, "\n\t\t\tread\t\t\twrite\n");
647 seq_puts(seq, "rpcs in flight rpcs % cum % |");
648 seq_puts(seq, " rpcs % cum %\n");
649
650 read_tot = lprocfs_oh_sum(&cli->cl_read_rpc_hist);
651 write_tot = lprocfs_oh_sum(&cli->cl_write_rpc_hist);
652
653 read_cum = 0;
654 write_cum = 0;
655 for (i = 0; i < OBD_HIST_MAX; i++) {
656 unsigned long r = cli->cl_read_rpc_hist.oh_buckets[i];
657 unsigned long w = cli->cl_write_rpc_hist.oh_buckets[i];
658
659 read_cum += r;
660 write_cum += w;
661 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
662 i, r, pct(r, read_tot),
663 pct(read_cum, read_tot), w,
664 pct(w, write_tot),
665 pct(write_cum, write_tot));
666 if (read_cum == read_tot && write_cum == write_tot)
667 break;
668 }
669
670 seq_puts(seq, "\n\t\t\tread\t\t\twrite\n");
671 seq_puts(seq, "offset rpcs % cum % |");
672 seq_puts(seq, " rpcs % cum %\n");
673
674 read_tot = lprocfs_oh_sum(&cli->cl_read_offset_hist);
675 write_tot = lprocfs_oh_sum(&cli->cl_write_offset_hist);
676
677 read_cum = 0;
678 write_cum = 0;
679 for (i = 0; i < OBD_HIST_MAX; i++) {
680 unsigned long r = cli->cl_read_offset_hist.oh_buckets[i];
681 unsigned long w = cli->cl_write_offset_hist.oh_buckets[i];
682
683 read_cum += r;
684 write_cum += w;
685 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
686 (i == 0) ? 0 : 1 << (i - 1),
687 r, pct(r, read_tot), pct(read_cum, read_tot),
688 w, pct(w, write_tot), pct(write_cum, write_tot));
689 if (read_cum == read_tot && write_cum == write_tot)
690 break;
691 }
692
693 client_obd_list_unlock(&cli->cl_loi_list_lock);
694
695 return 0;
696 }
697
698 #undef pct
699
osc_rpc_stats_seq_write(struct file * file,const char __user * buf,size_t len,loff_t * off)700 static ssize_t osc_rpc_stats_seq_write(struct file *file,
701 const char __user *buf,
702 size_t len, loff_t *off)
703 {
704 struct seq_file *seq = file->private_data;
705 struct obd_device *dev = seq->private;
706 struct client_obd *cli = &dev->u.cli;
707
708 lprocfs_oh_clear(&cli->cl_read_rpc_hist);
709 lprocfs_oh_clear(&cli->cl_write_rpc_hist);
710 lprocfs_oh_clear(&cli->cl_read_page_hist);
711 lprocfs_oh_clear(&cli->cl_write_page_hist);
712 lprocfs_oh_clear(&cli->cl_read_offset_hist);
713 lprocfs_oh_clear(&cli->cl_write_offset_hist);
714
715 return len;
716 }
717
718 LPROC_SEQ_FOPS(osc_rpc_stats);
719
osc_stats_seq_show(struct seq_file * seq,void * v)720 static int osc_stats_seq_show(struct seq_file *seq, void *v)
721 {
722 struct timespec64 now;
723 struct obd_device *dev = seq->private;
724 struct osc_stats *stats = &obd2osc_dev(dev)->od_stats;
725
726 ktime_get_real_ts64(&now);
727
728 seq_printf(seq, "snapshot_time: %llu.%9lu (secs.usecs)\n",
729 (s64)now.tv_sec, (unsigned long)now.tv_nsec);
730 seq_printf(seq, "lockless_write_bytes\t\t%llu\n",
731 stats->os_lockless_writes);
732 seq_printf(seq, "lockless_read_bytes\t\t%llu\n",
733 stats->os_lockless_reads);
734 seq_printf(seq, "lockless_truncate\t\t%llu\n",
735 stats->os_lockless_truncates);
736 return 0;
737 }
738
osc_stats_seq_write(struct file * file,const char __user * buf,size_t len,loff_t * off)739 static ssize_t osc_stats_seq_write(struct file *file,
740 const char __user *buf,
741 size_t len, loff_t *off)
742 {
743 struct seq_file *seq = file->private_data;
744 struct obd_device *dev = seq->private;
745 struct osc_stats *stats = &obd2osc_dev(dev)->od_stats;
746
747 memset(stats, 0, sizeof(*stats));
748 return len;
749 }
750
751 LPROC_SEQ_FOPS(osc_stats);
752
lproc_osc_attach_seqstat(struct obd_device * dev)753 int lproc_osc_attach_seqstat(struct obd_device *dev)
754 {
755 int rc;
756
757 rc = ldebugfs_seq_create(dev->obd_debugfs_entry, "osc_stats", 0644,
758 &osc_stats_fops, dev);
759 if (rc == 0)
760 rc = ldebugfs_obd_seq_create(dev, "rpc_stats", 0644,
761 &osc_rpc_stats_fops, dev);
762
763 return rc;
764 }
765
766 static struct attribute *osc_attrs[] = {
767 &lustre_attr_active.attr,
768 &lustre_attr_checksums.attr,
769 &lustre_attr_contention_seconds.attr,
770 &lustre_attr_cur_dirty_bytes.attr,
771 &lustre_attr_cur_grant_bytes.attr,
772 &lustre_attr_cur_lost_grant_bytes.attr,
773 &lustre_attr_destroys_in_flight.attr,
774 &lustre_attr_grant_shrink_interval.attr,
775 &lustre_attr_lockless_truncate.attr,
776 &lustre_attr_max_dirty_mb.attr,
777 &lustre_attr_max_pages_per_rpc.attr,
778 &lustre_attr_max_rpcs_in_flight.attr,
779 &lustre_attr_resend_count.attr,
780 NULL,
781 };
782
783 static struct attribute_group osc_attr_group = {
784 .attrs = osc_attrs,
785 };
786
lprocfs_osc_init_vars(struct lprocfs_static_vars * lvars)787 void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars)
788 {
789 lvars->sysfs_vars = &osc_attr_group;
790 lvars->obd_vars = lprocfs_osc_obd_vars;
791 }
792