4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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,
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13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
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18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
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21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
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30 * Copyright (c) 2011, 2012, Whamcloud, Inc.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/ofd/lproc_ofd.c
39 #define DEBUG_SUBSYSTEM S_CLASS
42 #include <lprocfs_status.h>
43 #include <linux/seq_file.h>
46 #include "ofd_internal.h"
50 static int lprocfs_ofd_rd_groups(char *page, char **start, off_t off,
51 int count, int *eof, void *data)
53 struct obd_device *obd = (struct obd_device *)data;
54 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
57 return snprintf(page, count, "%u\n", ofd->ofd_max_group);
60 static int lprocfs_ofd_rd_tot_dirty(char *page, char **start, off_t off,
61 int count, int *eof, void *data)
63 struct obd_device *obd = (struct obd_device *)data;
64 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
68 return snprintf(page, count, LPU64"\n", ofd->ofd_tot_dirty);
71 static int lprocfs_ofd_rd_tot_granted(char *page, char **start, off_t off,
72 int count, int *eof, void *data)
74 struct obd_device *obd = (struct obd_device *)data;
75 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
79 return snprintf(page, count, LPU64"\n", ofd->ofd_tot_granted);
82 static int lprocfs_ofd_rd_tot_pending(char *page, char **start, off_t off,
83 int count, int *eof, void *data)
85 struct obd_device *obd = (struct obd_device *)data;
86 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
90 return snprintf(page, count, LPU64"\n", ofd->ofd_tot_pending);
93 static int lprocfs_ofd_rd_grant_precreate(char *page, char **start, off_t off,
94 int count, int *eof, void *data)
96 struct obd_device *obd = (struct obd_device *)data;
100 return snprintf(page, count, "%ld\n",
101 obd->obd_self_export->exp_filter_data.fed_grant);
104 static int lprocfs_ofd_rd_grant_ratio(char *page, char **start, off_t off,
105 int count, int *eof, void *data)
107 struct obd_device *obd = (struct obd_device *)data;
108 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
110 LASSERT(obd != NULL);
112 return snprintf(page, count, "%d%%\n",
113 (int) ofd_grant_reserved(ofd, 100));
116 static int lprocfs_ofd_wr_grant_ratio(struct file *file, const char *buffer,
117 unsigned long count, void *data)
119 struct obd_device *obd = (struct obd_device *)data;
120 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
124 rc = lprocfs_write_helper(buffer, count, &val);
128 if (val > 100 || val < 0)
132 CWARN("%s: disabling grant error margin\n", obd->obd_name);
134 CWARN("%s: setting grant error margin >50%%, be warned that "
135 "a huge part of the free space is now reserved for "
136 "grants\n", obd->obd_name);
138 cfs_spin_lock(&ofd->ofd_grant_lock);
139 ofd->ofd_grant_ratio = ofd_grant_ratio_conv(val);
140 cfs_spin_unlock(&ofd->ofd_grant_lock);
144 static int lprocfs_ofd_rd_last_id(char *page, char **start, off_t off,
145 int count, int *eof, void *data)
147 struct obd_device *obd = data;
148 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
149 int retval = 0, rc, i;
154 for (i = FID_SEQ_OST_MDT0; i <= ofd->ofd_max_group; i++) {
155 rc = snprintf(page, count, LPU64"\n", ofd_last_id(ofd, i));
167 int lprocfs_ofd_rd_fmd_max_num(char *page, char **start, off_t off,
168 int count, int *eof, void *data)
170 struct obd_device *obd = data;
171 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
174 rc = snprintf(page, count, "%u\n", ofd->ofd_fmd_max_num);
178 int lprocfs_ofd_wr_fmd_max_num(struct file *file, const char *buffer,
179 unsigned long count, void *data)
181 struct obd_device *obd = data;
182 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
186 rc = lprocfs_write_helper(buffer, count, &val);
190 if (val > 65536 || val < 1)
193 ofd->ofd_fmd_max_num = val;
197 int lprocfs_ofd_rd_fmd_max_age(char *page, char **start, off_t off,
198 int count, int *eof, void *data)
200 struct obd_device *obd = data;
201 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
204 rc = snprintf(page, count, "%ld\n", ofd->ofd_fmd_max_age / CFS_HZ);
208 int lprocfs_ofd_wr_fmd_max_age(struct file *file, const char *buffer,
209 unsigned long count, void *data)
211 struct obd_device *obd = data;
212 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
216 rc = lprocfs_write_helper(buffer, count, &val);
220 if (val > 65536 || val < 1)
223 ofd->ofd_fmd_max_age = val * CFS_HZ;
227 static int lprocfs_ofd_rd_capa(char *page, char **start, off_t off,
228 int count, int *eof, void *data)
230 struct obd_device *obd = data;
233 rc = snprintf(page, count, "capability on: %s\n",
234 obd->u.filter.fo_fl_oss_capa ? "oss" : "");
238 static int lprocfs_ofd_wr_capa(struct file *file, const char *buffer,
239 unsigned long count, void *data)
241 struct obd_device *obd = data;
244 rc = lprocfs_write_helper(buffer, count, &val);
249 CERROR("invalid capability mode, only 0/1 are accepted.\n"
250 " 1: enable oss fid capability\n"
251 " 0: disable oss fid capability\n");
255 obd->u.filter.fo_fl_oss_capa = val;
256 LCONSOLE_INFO("OSS %s %s fid capability.\n", obd->obd_name,
257 val ? "enabled" : "disabled");
261 static int lprocfs_ofd_rd_capa_count(char *page, char **start, off_t off,
262 int count, int *eof, void *data)
264 return snprintf(page, count, "%d %d\n",
265 capa_count[CAPA_SITE_CLIENT],
266 capa_count[CAPA_SITE_SERVER]);
269 int lprocfs_ofd_rd_degraded(char *page, char **start, off_t off,
270 int count, int *eof, void *data)
272 struct obd_device *obd = data;
273 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
275 return snprintf(page, count, "%u\n", ofd->ofd_raid_degraded);
278 int lprocfs_ofd_wr_degraded(struct file *file, const char *buffer,
279 unsigned long count, void *data)
281 struct obd_device *obd = data;
282 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
285 rc = lprocfs_write_helper(buffer, count, &val);
289 cfs_spin_lock(&ofd->ofd_flags_lock);
290 ofd->ofd_raid_degraded = !!val;
291 cfs_spin_unlock(&ofd->ofd_flags_lock);
296 int lprocfs_ofd_rd_fstype(char *page, char **start, off_t off, int count,
297 int *eof, void *data)
299 struct obd_device *obd = data;
300 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
303 LASSERT(ofd->ofd_osd);
304 d = &ofd->ofd_osd->dd_lu_dev;
306 return snprintf(page, count, "%s\n", d->ld_type->ldt_name);
309 int lprocfs_ofd_rd_syncjournal(char *page, char **start, off_t off,
310 int count, int *eof, void *data)
312 struct obd_device *obd = data;
313 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
316 rc = snprintf(page, count, "%u\n", ofd->ofd_syncjournal);
320 int lprocfs_ofd_wr_syncjournal(struct file *file, const char *buffer,
321 unsigned long count, void *data)
323 struct obd_device *obd = data;
324 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
328 rc = lprocfs_write_helper(buffer, count, &val);
335 cfs_spin_lock(&ofd->ofd_flags_lock);
336 ofd->ofd_syncjournal = !!val;
338 cfs_spin_unlock(&ofd->ofd_flags_lock);
343 static char *sync_on_cancel_states[] = {"never",
347 int lprocfs_ofd_rd_sync_lock_cancel(char *page, char **start, off_t off,
348 int count, int *eof, void *data)
350 struct obd_device *obd = data;
351 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
354 rc = snprintf(page, count, "%s\n",
355 sync_on_cancel_states[ofd->ofd_sync_lock_cancel]);
359 int lprocfs_ofd_wr_sync_lock_cancel(struct file *file, const char *buffer,
360 unsigned long count, void *data)
362 struct obd_device *obd = data;
363 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
367 for (i = 0 ; i < NUM_SYNC_ON_CANCEL_STATES; i++) {
368 if (memcmp(buffer, sync_on_cancel_states[i],
369 strlen(sync_on_cancel_states[i])) == 0) {
377 rc = lprocfs_write_helper(buffer, count, &val);
382 if (val < 0 || val > 2)
385 cfs_spin_lock(&ofd->ofd_flags_lock);
386 ofd->ofd_sync_lock_cancel = val;
387 cfs_spin_unlock(&ofd->ofd_flags_lock);
391 int lprocfs_ofd_rd_grant_compat_disable(char *page, char **start, off_t off,
392 int count, int *eof, void *data)
394 struct obd_device *obd = data;
395 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
398 rc = snprintf(page, count, "%u\n", ofd->ofd_grant_compat_disable);
402 int lprocfs_ofd_wr_grant_compat_disable(struct file *file, const char *buffer,
403 unsigned long count, void *data)
405 struct obd_device *obd = data;
406 struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev);
410 rc = lprocfs_write_helper(buffer, count, &val);
417 cfs_spin_lock(&ofd->ofd_flags_lock);
418 ofd->ofd_grant_compat_disable = !!val;
419 cfs_spin_unlock(&ofd->ofd_flags_lock);
424 static struct lprocfs_vars lprocfs_ofd_obd_vars[] = {
425 { "uuid", lprocfs_rd_uuid, 0, 0 },
426 { "blocksize", lprocfs_rd_blksize, 0, 0 },
427 { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
428 { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
429 { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
430 { "filestotal", lprocfs_rd_filestotal, 0, 0 },
431 { "filesfree", lprocfs_rd_filesfree, 0, 0 },
432 { "filegroups", lprocfs_ofd_rd_groups, 0, 0 },
433 { "fstype", lprocfs_ofd_rd_fstype, 0, 0 },
434 { "last_id", lprocfs_ofd_rd_last_id, 0, 0 },
435 { "tot_dirty", lprocfs_ofd_rd_tot_dirty, 0, 0 },
436 { "tot_pending", lprocfs_ofd_rd_tot_pending, 0, 0 },
437 { "tot_granted", lprocfs_ofd_rd_tot_granted, 0, 0 },
438 { "grant_precreate", lprocfs_ofd_rd_grant_precreate, 0, 0 },
439 { "grant_ratio", lprocfs_ofd_rd_grant_ratio,
440 lprocfs_ofd_wr_grant_ratio, 0, 0 },
441 { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 },
442 { "recovery_time_soft", lprocfs_obd_rd_recovery_time_soft,
443 lprocfs_obd_wr_recovery_time_soft, 0},
444 { "recovery_time_hard", lprocfs_obd_rd_recovery_time_hard,
445 lprocfs_obd_wr_recovery_time_hard, 0},
446 { "evict_client", 0, lprocfs_wr_evict_client, 0,
447 &lprocfs_evict_client_fops},
448 { "num_exports", lprocfs_rd_num_exports, 0, 0 },
449 { "degraded", lprocfs_ofd_rd_degraded,
450 lprocfs_ofd_wr_degraded, 0},
451 { "sync_journal", lprocfs_ofd_rd_syncjournal,
452 lprocfs_ofd_wr_syncjournal, 0 },
453 { "sync_on_lock_cancel", lprocfs_ofd_rd_sync_lock_cancel,
454 lprocfs_ofd_wr_sync_lock_cancel, 0 },
455 { "instance", lprocfs_target_rd_instance, 0 },
456 { "ir_factor", lprocfs_obd_rd_ir_factor,
457 lprocfs_obd_wr_ir_factor, 0},
458 { "grant_compat_disable", lprocfs_ofd_rd_grant_compat_disable,
459 lprocfs_ofd_wr_grant_compat_disable, 0 },
460 { "client_cache_count", lprocfs_ofd_rd_fmd_max_num,
461 lprocfs_ofd_wr_fmd_max_num, 0 },
462 { "client_cache_seconds", lprocfs_ofd_rd_fmd_max_age,
463 lprocfs_ofd_wr_fmd_max_age, 0 },
464 { "capa", lprocfs_ofd_rd_capa,
465 lprocfs_ofd_wr_capa, 0 },
466 { "capa_count", lprocfs_ofd_rd_capa_count, 0, 0 },
467 /* we still register a fake quota type file for backward compatibility*/
468 { "quota_type", lprocfs_quota_rd_type_dumb,
469 lprocfs_quota_wr_type_dumb, 0},
473 static struct lprocfs_vars lprocfs_ofd_module_vars[] = {
474 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
478 #define pct(a,b) (b ? a * 100 / b : 0)
480 static void display_brw_stats(struct seq_file *seq, char *name, char *units,
481 struct obd_histogram *read,
482 struct obd_histogram *write, int log2)
484 unsigned long read_tot, write_tot, r, w, read_cum = 0, write_cum = 0;
487 seq_printf(seq, "\n%26s read | write\n", " ");
488 seq_printf(seq, "%-22s %-5s %% cum %% | %-5s %% cum %%\n",
491 read_tot = lprocfs_oh_sum(read);
492 write_tot = lprocfs_oh_sum(write);
493 for (i = 0; i < OBD_HIST_MAX; i++) {
494 r = read->oh_buckets[i];
495 w = write->oh_buckets[i];
498 if (read_cum == 0 && write_cum == 0)
502 seq_printf(seq, "%u", i);
504 seq_printf(seq, "%u", 1 << i);
506 seq_printf(seq, "%uK", 1 << (i - 10));
508 seq_printf(seq, "%uM", 1 << (i - 20));
510 seq_printf(seq, ":\t\t%10lu %3lu %3lu | %4lu %3lu %3lu\n",
511 r, pct(r, read_tot), pct(read_cum, read_tot),
512 w, pct(w, write_tot), pct(write_cum, write_tot));
514 if (read_cum == read_tot && write_cum == write_tot)
519 static void brw_stats_show(struct seq_file *seq, struct brw_stats *brw_stats)
524 /* this sampling races with updates */
525 cfs_gettimeofday(&now);
526 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
527 now.tv_sec, now.tv_usec);
529 display_brw_stats(seq, "pages per bulk r/w", "rpcs",
530 &brw_stats->hist[BRW_R_PAGES],
531 &brw_stats->hist[BRW_W_PAGES], 1);
533 display_brw_stats(seq, "discontiguous pages", "rpcs",
534 &brw_stats->hist[BRW_R_DISCONT_PAGES],
535 &brw_stats->hist[BRW_W_DISCONT_PAGES], 0);
537 display_brw_stats(seq, "discontiguous blocks", "rpcs",
538 &brw_stats->hist[BRW_R_DISCONT_BLOCKS],
539 &brw_stats->hist[BRW_W_DISCONT_BLOCKS], 0);
541 display_brw_stats(seq, "disk fragmented I/Os", "ios",
542 &brw_stats->hist[BRW_R_DIO_FRAGS],
543 &brw_stats->hist[BRW_W_DIO_FRAGS], 0);
545 display_brw_stats(seq, "disk I/Os in flight", "ios",
546 &brw_stats->hist[BRW_R_RPC_HIST],
547 &brw_stats->hist[BRW_W_RPC_HIST], 0);
549 sprintf(title, "I/O time (1/%ds)", CFS_HZ);
550 display_brw_stats(seq, title, "ios",
551 &brw_stats->hist[BRW_R_IO_TIME],
552 &brw_stats->hist[BRW_W_IO_TIME], 1);
554 display_brw_stats(seq, "disk I/O size", "ios",
555 &brw_stats->hist[BRW_R_DISK_IOSIZE],
556 &brw_stats->hist[BRW_W_DISK_IOSIZE], 1);
561 static int ofd_brw_stats_seq_show(struct seq_file *seq, void *v)
563 struct obd_device *dev = seq->private;
564 struct filter_obd *ofd = &dev->u.filter;
566 brw_stats_show(seq, &ofd->fo_filter_stats);
571 static ssize_t ofd_brw_stats_seq_write(struct file *file, const char *buf,
572 size_t len, loff_t *off)
574 struct seq_file *seq = file->private_data;
575 struct obd_device *dev = seq->private;
576 struct filter_obd *ofd = &dev->u.filter;
579 for (i = 0; i < BRW_LAST; i++)
580 lprocfs_oh_clear(&ofd->fo_filter_stats.hist[i]);
585 LPROC_SEQ_FOPS(ofd_brw_stats);
587 int lproc_ofd_attach_seqstat(struct obd_device *dev)
589 return lprocfs_obd_seq_create(dev, "brw_stats", 0444,
590 &ofd_brw_stats_fops, dev);
593 void lprocfs_ofd_init_vars(struct lprocfs_static_vars *lvars)
595 lvars->module_vars = lprocfs_ofd_module_vars;
596 lvars->obd_vars = lprocfs_ofd_obd_vars;
599 static int ofd_per_nid_stats_seq_show(struct seq_file *seq, void *v)
601 nid_stat_t *stat = seq->private;
603 if (stat->nid_brw_stats)
604 brw_stats_show(seq, stat->nid_brw_stats);
609 static ssize_t ofd_per_nid_stats_seq_write(struct file *file, const char *buf,
610 size_t len, loff_t *off)
612 struct seq_file *seq = file->private_data;
613 nid_stat_t *stat = seq->private;
616 if (stat->nid_brw_stats)
617 for (i = 0; i < BRW_LAST; i++)
618 lprocfs_oh_clear(&stat->nid_brw_stats->hist[i]);
623 LPROC_SEQ_FOPS(ofd_per_nid_stats);