lustre/osc/lproc_osc.c

   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.gnu.org/licenses/gpl-2.0.html
  19  *
  20  * GPL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Copyright (c) 2011, 2017, Intel Corporation.
  27  */
  28 /*
  29  * This file is part of Lustre, http://www.lustre.org/
  30  */
  31 #define DEBUG_SUBSYSTEM S_CLASS
  32
  33 #include <linux/version.h>
  34 #include <asm/statfs.h>
  35 #include <obd_cksum.h>
  36 #include <obd_class.h>
  37 #include <lprocfs_status.h>
  38 #include <linux/seq_file.h>
  39 #include <lustre_osc.h>
  40
  41 #include "osc_internal.h"
  42
  43 static ssize_t active_show(struct kobject *kobj, struct attribute *attr,
  44                            char *buf)
  45 {
  46         struct obd_device *obd = container_of(kobj, struct obd_device,
  47                                               obd_kset.kobj);
  48         struct obd_import *imp;
  49         int rc;
  50
  51         with_imp_locked(obd, imp, rc)
  52                 rc = sprintf(buf, "%d\n", !imp->imp_deactive);
  53
  54         return rc;
  55 }
  56
  57 static ssize_t active_store(struct kobject *kobj, struct attribute *attr,
  58                             const char *buffer, size_t count)
  59 {
  60         struct obd_device *obd = container_of(kobj, struct obd_device,
  61                                               obd_kset.kobj);
  62         struct obd_import *imp, *imp0;
  63         bool val;
  64         int rc;
  65
  66         rc = kstrtobool(buffer, &val);
  67         if (rc)
  68                 return rc;
  69
  70         with_imp_locked(obd, imp0, rc)
  71                 imp = class_import_get(imp0);
  72         if (rc)
  73                 return rc;
  74         /* opposite senses */
  75         if (imp->imp_deactive == val)
  76                 rc = ptlrpc_set_import_active(imp, val);
  77         else
  78                 CDEBUG(D_CONFIG, "activate %u: ignoring repeat request\n",
  79                        (unsigned int)val);
  80         class_import_put(imp);
  81
  82         return rc ?: count;
  83 }
  84 LUSTRE_RW_ATTR(active);
  85
  86 static ssize_t max_rpcs_in_flight_show(struct kobject *kobj,
  87                                        struct attribute *attr,
  88                                        char *buf)
  89 {
  90         struct obd_device *obd = container_of(kobj, struct obd_device,
  91                                               obd_kset.kobj);
  92         struct client_obd *cli = &obd->u.cli;
  93
  94         return  scnprintf(buf, PAGE_SIZE, "%u\n", cli->cl_max_rpcs_in_flight);
  95 }
  96
  97 static ssize_t max_rpcs_in_flight_store(struct kobject *kobj,
  98                                         struct attribute *attr,
  99                                         const char *buffer,
 100                                         size_t count)
 101 {
 102         struct obd_device *obd = container_of(kobj, struct obd_device,
 103                                               obd_kset.kobj);
 104         struct client_obd *cli = &obd->u.cli;
 105         int adding, added, req_count;
 106         unsigned int val;
 107         int rc;
 108
 109         rc = kstrtouint(buffer, 0, &val);
 110         if (rc)
 111                 return rc;
 112
 113         if (val == 0 || val > OSC_MAX_RIF_MAX)
 114                 return -ERANGE;
 115
 116         adding = (int)val - cli->cl_max_rpcs_in_flight;
 117         req_count = atomic_read(&osc_pool_req_count);
 118         if (adding > 0 && req_count < osc_reqpool_maxreqcount) {
 119                 /*
 120                  * There might be some race which will cause over-limit
 121                  * allocation, but it is fine.
 122                  */
 123                 if (req_count + adding > osc_reqpool_maxreqcount)
 124                         adding = osc_reqpool_maxreqcount - req_count;
 125
 126                 added = osc_rq_pool->prp_populate(osc_rq_pool, adding);
 127                 atomic_add(added, &osc_pool_req_count);
 128         }
 129
 130         spin_lock(&cli->cl_loi_list_lock);
 131         cli->cl_max_rpcs_in_flight = val;
 132         client_adjust_max_dirty(cli);
 133         spin_unlock(&cli->cl_loi_list_lock);
 134
 135         return count;
 136 }
 137 LUSTRE_RW_ATTR(max_rpcs_in_flight);
 138
 139 static ssize_t max_dirty_mb_show(struct kobject *kobj,
 140                                  struct attribute *attr,
 141                                  char *buf)
 142 {
 143         struct obd_device *obd = container_of(kobj, struct obd_device,
 144                                               obd_kset.kobj);
 145         struct client_obd *cli = &obd->u.cli;
 146
 147         return scnprintf(buf, PAGE_SIZE, "%lu\n",
 148                          PAGES_TO_MiB(cli->cl_dirty_max_pages));
 149 }
 150
 151 static ssize_t max_dirty_mb_store(struct kobject *kobj,
 152                                   struct attribute *attr,
 153                                   const char *buffer,
 154                                   size_t count)
 155 {
 156         struct obd_device *obd = container_of(kobj, struct obd_device,
 157                                               obd_kset.kobj);
 158         struct client_obd *cli = &obd->u.cli;
 159         unsigned long pages_number, max_dirty_mb;
 160         int rc;
 161
 162         rc = kstrtoul(buffer, 10, &max_dirty_mb);
 163         if (rc)
 164                 return rc;
 165
 166         pages_number = MiB_TO_PAGES(max_dirty_mb);
 167
 168         if (pages_number >= MiB_TO_PAGES(OSC_MAX_DIRTY_MB_MAX) ||
 169             pages_number > cfs_totalram_pages() / 4) /* 1/4 of RAM */
 170                 return -ERANGE;
 171
 172         spin_lock(&cli->cl_loi_list_lock);
 173         cli->cl_dirty_max_pages = pages_number;
 174         osc_wake_cache_waiters(cli);
 175         spin_unlock(&cli->cl_loi_list_lock);
 176
 177         return count;
 178 }
 179 LUSTRE_RW_ATTR(max_dirty_mb);
 180
 181 LUSTRE_ATTR(ost_conn_uuid, 0444, conn_uuid_show, NULL);
 182 LUSTRE_RO_ATTR(conn_uuid);
 183
 184 LUSTRE_RW_ATTR(ping);
 185
 186 static int osc_cached_mb_seq_show(struct seq_file *m, void *v)
 187 {
 188         struct obd_device *obd = m->private;
 189         struct client_obd *cli = &obd->u.cli;
 190         int shift = 20 - PAGE_SHIFT;
 191
 192         seq_printf(m, "used_mb: %ld\n"
 193                    "busy_cnt: %ld\n"
 194                    "reclaim: %llu\n",
 195                    (atomic_long_read(&cli->cl_lru_in_list) +
 196                     atomic_long_read(&cli->cl_lru_busy)) >> shift,
 197                     atomic_long_read(&cli->cl_lru_busy),
 198                    cli->cl_lru_reclaim);
 199
 200         return 0;
 201 }
 202
 203 /* shrink the number of caching pages to a specific number */
 204 static ssize_t osc_cached_mb_seq_write(struct file *file,
 205                                        const char __user *buffer,
 206                                        size_t count, loff_t *off)
 207 {
 208         struct seq_file *m = file->private_data;
 209         struct obd_device *obd = m->private;
 210         struct client_obd *cli = &obd->u.cli;
 211         u64 pages_number;
 212         const char *tmp;
 213         long rc;
 214         char kernbuf[128];
 215
 216         if (count >= sizeof(kernbuf))
 217                 return -EINVAL;
 218
 219         if (copy_from_user(kernbuf, buffer, count))
 220                 return -EFAULT;
 221         kernbuf[count] = 0;
 222
 223         tmp = lprocfs_find_named_value(kernbuf, "used_mb:", &count);
 224         rc = sysfs_memparse(tmp, count, &pages_number, "MiB");
 225         if (rc < 0)
 226                 return rc;
 227
 228         pages_number >>= PAGE_SHIFT;
 229
 230         rc = atomic_long_read(&cli->cl_lru_in_list) - pages_number;
 231         if (rc > 0) {
 232                 struct lu_env *env;
 233                 __u16 refcheck;
 234
 235                 env = cl_env_get(&refcheck);
 236                 if (!IS_ERR(env)) {
 237                         (void)osc_lru_shrink(env, cli, rc, true);
 238                         cl_env_put(env, &refcheck);
 239                 }
 240         }
 241
 242         return count;
 243 }
 244
 245 LPROC_SEQ_FOPS(osc_cached_mb);
 246
 247 static ssize_t cur_dirty_bytes_show(struct kobject *kobj,
 248                                     struct attribute *attr,
 249                                     char *buf)
 250 {
 251         struct obd_device *obd = container_of(kobj, struct obd_device,
 252                                               obd_kset.kobj);
 253         struct client_obd *cli = &obd->u.cli;
 254
 255         return scnprintf(buf, PAGE_SIZE, "%lu\n",
 256                          cli->cl_dirty_pages << PAGE_SHIFT);
 257 }
 258 LUSTRE_RO_ATTR(cur_dirty_bytes);
 259
 260 static int osc_cur_grant_bytes_seq_show(struct seq_file *m, void *v)
 261 {
 262         struct obd_device *obd = m->private;
 263         struct client_obd *cli = &obd->u.cli;
 264
 265         seq_printf(m, "%lu\n", cli->cl_avail_grant);
 266         return 0;
 267 }
 268
 269 static ssize_t osc_cur_grant_bytes_seq_write(struct file *file,
 270                                              const char __user *buffer,
 271                                              size_t count, loff_t *off)
 272 {
 273         struct seq_file *m = file->private_data;
 274         struct obd_device *obd = m->private;
 275         struct client_obd *cli = &obd->u.cli;
 276         struct obd_import *imp;
 277         char kernbuf[22] = "";
 278         u64 val;
 279         int rc;
 280
 281         if (obd == NULL)
 282                 return 0;
 283
 284         if (count >= sizeof(kernbuf))
 285                 return -EINVAL;
 286
 287         if (copy_from_user(kernbuf, buffer, count))
 288                 return -EFAULT;
 289         kernbuf[count] = 0;
 290
 291         rc = sysfs_memparse(kernbuf, count, &val, "MiB");
 292         if (rc < 0)
 293                 return rc;
 294
 295         /* this is only for shrinking grant */
 296         if (val >= cli->cl_avail_grant)
 297                 return 0;
 298
 299         with_imp_locked(obd, imp, rc)
 300                 if (imp->imp_state == LUSTRE_IMP_FULL)
 301                         rc = osc_shrink_grant_to_target(cli, val);
 302
 303         return rc ? rc : count;
 304 }
 305 LPROC_SEQ_FOPS(osc_cur_grant_bytes);
 306
 307 static ssize_t cur_lost_grant_bytes_show(struct kobject *kobj,
 308                                          struct attribute *attr,
 309                                          char *buf)
 310 {
 311         struct obd_device *obd = container_of(kobj, struct obd_device,
 312                                               obd_kset.kobj);
 313         struct client_obd *cli = &obd->u.cli;
 314
 315         return scnprintf(buf, PAGE_SIZE, "%lu\n", cli->cl_lost_grant);
 316 }
 317 LUSTRE_RO_ATTR(cur_lost_grant_bytes);
 318
 319 static ssize_t cur_dirty_grant_bytes_show(struct kobject *kobj,
 320                                           struct attribute *attr,
 321                                           char *buf)
 322 {
 323         struct obd_device *obd = container_of(kobj, struct obd_device,
 324                                               obd_kset.kobj);
 325         struct client_obd *cli = &obd->u.cli;
 326
 327         return scnprintf(buf, PAGE_SIZE, "%lu\n", cli->cl_dirty_grant);
 328 }
 329 LUSTRE_RO_ATTR(cur_dirty_grant_bytes);
 330
 331 static ssize_t grant_shrink_interval_show(struct kobject *kobj,
 332                                           struct attribute *attr,
 333                                           char *buf)
 334 {
 335         struct obd_device *obd = container_of(kobj, struct obd_device,
 336                                               obd_kset.kobj);
 337
 338         return sprintf(buf, "%lld\n", obd->u.cli.cl_grant_shrink_interval);
 339 }
 340
 341 static ssize_t grant_shrink_interval_store(struct kobject *kobj,
 342                                            struct attribute *attr,
 343                                            const char *buffer,
 344                                            size_t count)
 345 {
 346         struct obd_device *obd = container_of(kobj, struct obd_device,
 347                                               obd_kset.kobj);
 348         unsigned int val;
 349         int rc;
 350
 351         rc = kstrtouint(buffer, 0, &val);
 352         if (rc)
 353                 return rc;
 354
 355         if (val == 0)
 356                 return -ERANGE;
 357
 358         obd->u.cli.cl_grant_shrink_interval = val;
 359         osc_update_next_shrink(&obd->u.cli);
 360         osc_schedule_grant_work();
 361
 362         return count;
 363 }
 364 LUSTRE_RW_ATTR(grant_shrink_interval);
 365
 366 static ssize_t checksums_show(struct kobject *kobj,
 367                               struct attribute *attr,
 368                               char *buf)
 369 {
 370         struct obd_device *obd = container_of(kobj, struct obd_device,
 371                                               obd_kset.kobj);
 372
 373         return scnprintf(buf, PAGE_SIZE, "%d\n", !!obd->u.cli.cl_checksum);
 374 }
 375
 376 static ssize_t checksums_store(struct kobject *kobj,
 377                                struct attribute *attr,
 378                                const char *buffer,
 379                                size_t count)
 380 {
 381         struct obd_device *obd = container_of(kobj, struct obd_device,
 382                                               obd_kset.kobj);
 383         bool val;
 384         int rc;
 385
 386         rc = kstrtobool(buffer, &val);
 387         if (rc)
 388                 return rc;
 389
 390         obd->u.cli.cl_checksum = val;
 391
 392         return count;
 393 }
 394 LUSTRE_RW_ATTR(checksums);
 395
 396 DECLARE_CKSUM_NAME;
 397
 398 static int osc_checksum_type_seq_show(struct seq_file *m, void *v)
 399 {
 400         struct obd_device *obd = m->private;
 401         int i;
 402
 403         if (obd == NULL)
 404                 return 0;
 405
 406         for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
 407                 if ((BIT(i) & obd->u.cli.cl_supp_cksum_types) == 0)
 408                         continue;
 409                 if (obd->u.cli.cl_cksum_type == BIT(i))
 410                         seq_printf(m, "[%s] ", cksum_name[i]);
 411                 else
 412                         seq_printf(m, "%s ", cksum_name[i]);
 413         }
 414         seq_puts(m, "\n");
 415
 416         return 0;
 417 }
 418
 419 static ssize_t osc_checksum_type_seq_write(struct file *file,
 420                                            const char __user *buffer,
 421                                            size_t count, loff_t *off)
 422 {
 423         struct seq_file *m = file->private_data;
 424         struct obd_device *obd = m->private;
 425         char kernbuf[10];
 426         int rc = -EINVAL;
 427         int i;
 428
 429         if (obd == NULL)
 430                 return 0;
 431
 432         if (count > sizeof(kernbuf) - 1)
 433                 return -EINVAL;
 434         if (copy_from_user(kernbuf, buffer, count))
 435                 return -EFAULT;
 436
 437         if (count > 0 && kernbuf[count - 1] == '\n')
 438                 kernbuf[count - 1] = '\0';
 439         else
 440                 kernbuf[count] = '\0';
 441
 442         for (i = 0; i < ARRAY_SIZE(cksum_name); i++) {
 443                 if (strcasecmp(kernbuf, cksum_name[i]) == 0) {
 444                         obd->u.cli.cl_preferred_cksum_type = BIT(i);
 445                         if (obd->u.cli.cl_supp_cksum_types & BIT(i)) {
 446                                 obd->u.cli.cl_cksum_type = BIT(i);
 447                                 rc = count;
 448                         } else {
 449                                 rc = -ENOTSUPP;
 450                         }
 451                         break;
 452                 }
 453         }
 454         return rc;
 455 }
 456 LPROC_SEQ_FOPS(osc_checksum_type);
 457
 458 static ssize_t resend_count_show(struct kobject *kobj,
 459                                  struct attribute *attr,
 460                                  char *buf)
 461 {
 462         struct obd_device *obd = container_of(kobj, struct obd_device,
 463                                               obd_kset.kobj);
 464
 465         return sprintf(buf, "%u\n", atomic_read(&obd->u.cli.cl_resends));
 466 }
 467
 468 static ssize_t resend_count_store(struct kobject *kobj,
 469                                   struct attribute *attr,
 470                                   const char *buffer,
 471                                   size_t count)
 472 {
 473         struct obd_device *obd = container_of(kobj, struct obd_device,
 474                                               obd_kset.kobj);
 475         unsigned int val;
 476         int rc;
 477
 478         rc = kstrtouint(buffer, 10, &val);
 479         if (rc)
 480                 return rc;
 481
 482         atomic_set(&obd->u.cli.cl_resends, val);
 483
 484         return count;
 485 }
 486 LUSTRE_RW_ATTR(resend_count);
 487
 488 static ssize_t checksum_dump_show(struct kobject *kobj,
 489                                   struct attribute *attr,
 490                                   char *buf)
 491 {
 492         struct obd_device *obd = container_of(kobj, struct obd_device,
 493                                               obd_kset.kobj);
 494
 495         return scnprintf(buf, PAGE_SIZE, "%d\n", !!obd->u.cli.cl_checksum_dump);
 496 }
 497
 498 static ssize_t checksum_dump_store(struct kobject *kobj,
 499                                    struct attribute *attr,
 500                                    const char *buffer,
 501                                    size_t count)
 502 {
 503         struct obd_device *obd = container_of(kobj, struct obd_device,
 504                                               obd_kset.kobj);
 505         bool val;
 506         int rc;
 507
 508         rc = kstrtobool(buffer, &val);
 509         if (rc)
 510                 return rc;
 511
 512         obd->u.cli.cl_checksum_dump = val;
 513
 514         return count;
 515 }
 516 LUSTRE_RW_ATTR(checksum_dump);
 517
 518 static ssize_t destroys_in_flight_show(struct kobject *kobj,
 519                                        struct attribute *attr,
 520                                        char *buf)
 521 {
 522         struct obd_device *obd = container_of(kobj, struct obd_device,
 523                                               obd_kset.kobj);
 524
 525         return sprintf(buf, "%u\n",
 526                        atomic_read(&obd->u.cli.cl_destroy_in_flight));
 527 }
 528 LUSTRE_RO_ATTR(destroys_in_flight);
 529
 530 LPROC_SEQ_FOPS_RW_TYPE(osc, obd_max_pages_per_rpc);
 531
 532 LUSTRE_RW_ATTR(short_io_bytes);
 533
 534 #ifdef CONFIG_PROC_FS
 535 static int osc_unstable_stats_seq_show(struct seq_file *m, void *v)
 536 {
 537         struct obd_device *obd = m->private;
 538         struct client_obd *cli = &obd->u.cli;
 539         long pages;
 540         int mb;
 541
 542         pages = atomic_long_read(&cli->cl_unstable_count);
 543         mb    = (pages * PAGE_SIZE) >> 20;
 544
 545         seq_printf(m, "unstable_pages: %20ld\n"
 546                    "unstable_mb:              %10d\n",
 547                    pages, mb);
 548         return 0;
 549 }
 550 LPROC_SEQ_FOPS_RO(osc_unstable_stats);
 551
 552 static ssize_t idle_timeout_show(struct kobject *kobj, struct attribute *attr,
 553                                  char *buf)
 554 {
 555         struct obd_device *obd = container_of(kobj, struct obd_device,
 556                                               obd_kset.kobj);
 557         struct obd_import *imp;
 558         int ret;
 559
 560         with_imp_locked(obd, imp, ret)
 561                 ret = sprintf(buf, "%u\n", imp->imp_idle_timeout);
 562
 563         return ret;
 564 }
 565
 566 static ssize_t idle_timeout_store(struct kobject *kobj, struct attribute *attr,
 567                                   const char *buffer, size_t count)
 568 {
 569         struct obd_device *obd = container_of(kobj, struct obd_device,
 570                                               obd_kset.kobj);
 571         struct obd_import *imp;
 572         struct ptlrpc_request *req;
 573         unsigned int idle_debug = 0;
 574         unsigned int val;
 575         int rc;
 576
 577         if (strncmp(buffer, "debug", 5) == 0) {
 578                 idle_debug = D_CONSOLE;
 579         } else if (strncmp(buffer, "nodebug", 6) == 0) {
 580                 idle_debug = D_HA;
 581         } else {
 582                 rc = kstrtouint(buffer, 10, &val);
 583                 if (rc)
 584                         return rc;
 585
 586                 if (val > CONNECTION_SWITCH_MAX)
 587                         return -ERANGE;
 588         }
 589
 590         with_imp_locked(obd, imp, rc) {
 591                 if (idle_debug) {
 592                         imp->imp_idle_debug = idle_debug;
 593                 } else {
 594                         if (!val) {
 595                                 /* initiate the connection if it's in IDLE state */
 596                                 req = ptlrpc_request_alloc(imp,
 597                                                            &RQF_OST_STATFS);
 598                                 if (req != NULL)
 599                                         ptlrpc_req_finished(req);
 600                         }
 601                         imp->imp_idle_timeout = val;
 602                 }
 603         }
 604
 605         return count;
 606 }
 607 LUSTRE_RW_ATTR(idle_timeout);
 608
 609 static ssize_t idle_connect_store(struct kobject *kobj, struct attribute *attr,
 610                                   const char *buffer, size_t count)
 611 {
 612         struct obd_device *obd = container_of(kobj, struct obd_device,
 613                                               obd_kset.kobj);
 614         struct obd_import *imp;
 615         struct ptlrpc_request *req;
 616         int rc;
 617
 618         with_imp_locked(obd, imp, rc) {
 619                 /* to initiate the connection if it's in IDLE state */
 620                 req = ptlrpc_request_alloc(imp, &RQF_OST_STATFS);
 621                 if (req)
 622                         ptlrpc_req_finished(req);
 623                 ptlrpc_pinger_force(imp);
 624         }
 625
 626         return rc ?: count;
 627 }
 628 LUSTRE_WO_ATTR(idle_connect);
 629
 630 static ssize_t grant_shrink_show(struct kobject *kobj, struct attribute *attr,
 631                                  char *buf)
 632 {
 633         struct obd_device *obd = container_of(kobj, struct obd_device,
 634                                               obd_kset.kobj);
 635         struct obd_import *imp;
 636         ssize_t len;
 637
 638         with_imp_locked(obd, imp, len)
 639                 len = scnprintf(buf, PAGE_SIZE, "%d\n",
 640                                 !imp->imp_grant_shrink_disabled &&
 641                                 OCD_HAS_FLAG(&imp->imp_connect_data,
 642                                              GRANT_SHRINK));
 643
 644         return len;
 645 }
 646
 647 static ssize_t grant_shrink_store(struct kobject *kobj, struct attribute *attr,
 648                                   const char *buffer, size_t count)
 649 {
 650         struct obd_device *obd = container_of(kobj, struct obd_device,
 651                                               obd_kset.kobj);
 652         struct obd_import *imp;
 653         bool val;
 654         int rc;
 655
 656         if (obd == NULL)
 657                 return 0;
 658
 659         rc = kstrtobool(buffer, &val);
 660         if (rc)
 661                 return rc;
 662
 663         with_imp_locked(obd, imp, rc) {
 664                 spin_lock(&imp->imp_lock);
 665                 imp->imp_grant_shrink_disabled = !val;
 666                 spin_unlock(&imp->imp_lock);
 667         }
 668
 669         return rc ?: count;
 670 }
 671 LUSTRE_RW_ATTR(grant_shrink);
 672
 673 LPROC_SEQ_FOPS_RO_TYPE(osc, connect_flags);
 674 LPROC_SEQ_FOPS_RO_TYPE(osc, server_uuid);
 675 LPROC_SEQ_FOPS_RO_TYPE(osc, timeouts);
 676 LPROC_SEQ_FOPS_RO_TYPE(osc, state);
 677
 678 LPROC_SEQ_FOPS_RW_TYPE(osc, import);
 679 LPROC_SEQ_FOPS_RW_TYPE(osc, pinger_recov);
 680
 681 struct lprocfs_vars lprocfs_osc_obd_vars[] = {
 682         { .name =       "connect_flags",
 683           .fops =       &osc_connect_flags_fops         },
 684         { .name =       "ost_server_uuid",
 685           .fops =       &osc_server_uuid_fops           },
 686         { .name =       "max_pages_per_rpc",
 687           .fops =       &osc_obd_max_pages_per_rpc_fops },
 688         { .name =       "osc_cached_mb",
 689           .fops =       &osc_cached_mb_fops             },
 690         { .name =       "cur_grant_bytes",
 691           .fops =       &osc_cur_grant_bytes_fops       },
 692         { .name =       "checksum_type",
 693           .fops =       &osc_checksum_type_fops         },
 694         { .name =       "timeouts",
 695           .fops =       &osc_timeouts_fops              },
 696         { .name =       "import",
 697           .fops =       &osc_import_fops                },
 698         { .name =       "state",
 699           .fops =       &osc_state_fops                 },
 700         { .name =       "pinger_recov",
 701           .fops =       &osc_pinger_recov_fops          },
 702         { .name =       "unstable_stats",
 703           .fops =       &osc_unstable_stats_fops        },
 704         { NULL }
 705 };
 706
 707 static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v)
 708 {
 709         struct timespec64 now;
 710         struct obd_device *obd = seq->private;
 711         struct client_obd *cli = &obd->u.cli;
 712         unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
 713         int i;
 714
 715         ktime_get_real_ts64(&now);
 716
 717         spin_lock(&cli->cl_loi_list_lock);
 718
 719         seq_printf(seq, "snapshot_time:         %lld.%09lu (secs.nsecs)\n",
 720                    (s64)now.tv_sec, now.tv_nsec);
 721         seq_printf(seq, "read RPCs in flight:  %d\n",
 722                    cli->cl_r_in_flight);
 723         seq_printf(seq, "write RPCs in flight: %d\n",
 724                    cli->cl_w_in_flight);
 725         seq_printf(seq, "pending write pages:  %d\n",
 726                    atomic_read(&cli->cl_pending_w_pages));
 727         seq_printf(seq, "pending read pages:   %d\n",
 728                    atomic_read(&cli->cl_pending_r_pages));
 729
 730         seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
 731         seq_printf(seq, "pages per rpc         rpcs   %% cum %% |");
 732         seq_printf(seq, "       rpcs   %% cum %%\n");
 733
 734         read_tot = lprocfs_oh_sum(&cli->cl_read_page_hist);
 735         write_tot = lprocfs_oh_sum(&cli->cl_write_page_hist);
 736
 737         read_cum = 0;
 738         write_cum = 0;
 739         for (i = 0; i < OBD_HIST_MAX; i++) {
 740                 unsigned long r = cli->cl_read_page_hist.oh_buckets[i];
 741                 unsigned long w = cli->cl_write_page_hist.oh_buckets[i];
 742
 743                 read_cum += r;
 744                 write_cum += w;
 745                 seq_printf(seq, "%d:\t\t%10lu %3u %3u   | %10lu %3u %3u\n",
 746                            1 << i, r, pct(r, read_tot),
 747                            pct(read_cum, read_tot), w,
 748                            pct(w, write_tot),
 749                            pct(write_cum, write_tot));
 750                 if (read_cum == read_tot && write_cum == write_tot)
 751                         break;
 752         }
 753
 754         seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
 755         seq_printf(seq, "rpcs in flight        rpcs   %% cum %% |");
 756         seq_printf(seq, "       rpcs   %% cum %%\n");
 757
 758         read_tot = lprocfs_oh_sum(&cli->cl_read_rpc_hist);
 759         write_tot = lprocfs_oh_sum(&cli->cl_write_rpc_hist);
 760
 761         read_cum = 0;
 762         write_cum = 0;
 763         for (i = 1; i < OBD_HIST_MAX; i++) {
 764                 unsigned long r = cli->cl_read_rpc_hist.oh_buckets[i];
 765                 unsigned long w = cli->cl_write_rpc_hist.oh_buckets[i];
 766                 read_cum += r;
 767                 write_cum += w;
 768                 seq_printf(seq, "%d:\t\t%10lu %3u %3u   | %10lu %3u %3u\n",
 769                            i, r, pct(r, read_tot),
 770                            pct(read_cum, read_tot), w,
 771                            pct(w, write_tot),
 772                            pct(write_cum, write_tot));
 773                 if (read_cum == read_tot && write_cum == write_tot)
 774                         break;
 775         }
 776
 777         seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
 778         seq_printf(seq, "offset                rpcs   %% cum %% |");
 779         seq_printf(seq, "       rpcs   %% cum %%\n");
 780
 781         read_tot = lprocfs_oh_sum(&cli->cl_read_offset_hist);
 782         write_tot = lprocfs_oh_sum(&cli->cl_write_offset_hist);
 783
 784         read_cum = 0;
 785         write_cum = 0;
 786         for (i = 0; i < OBD_HIST_MAX; i++) {
 787                 unsigned long r = cli->cl_read_offset_hist.oh_buckets[i];
 788                 unsigned long w = cli->cl_write_offset_hist.oh_buckets[i];
 789                 read_cum += r;
 790                 write_cum += w;
 791                 seq_printf(seq, "%d:\t\t%10lu %3u %3u   | %10lu %3u %3u\n",
 792                            (i == 0) ? 0 : 1 << (i - 1),
 793                            r, pct(r, read_tot), pct(read_cum, read_tot),
 794                            w, pct(w, write_tot), pct(write_cum, write_tot));
 795                 if (read_cum == read_tot && write_cum == write_tot)
 796                         break;
 797         }
 798
 799         spin_unlock(&cli->cl_loi_list_lock);
 800
 801         return 0;
 802 }
 803
 804 static ssize_t osc_rpc_stats_seq_write(struct file *file,
 805                                        const char __user *buf,
 806                                        size_t len, loff_t *off)
 807 {
 808         struct seq_file *seq = file->private_data;
 809         struct obd_device *obd = seq->private;
 810         struct client_obd *cli = &obd->u.cli;
 811
 812         lprocfs_oh_clear(&cli->cl_read_rpc_hist);
 813         lprocfs_oh_clear(&cli->cl_write_rpc_hist);
 814         lprocfs_oh_clear(&cli->cl_read_page_hist);
 815         lprocfs_oh_clear(&cli->cl_write_page_hist);
 816         lprocfs_oh_clear(&cli->cl_read_offset_hist);
 817         lprocfs_oh_clear(&cli->cl_write_offset_hist);
 818
 819         return len;
 820 }
 821 LPROC_SEQ_FOPS(osc_rpc_stats);
 822
 823 static int osc_stats_seq_show(struct seq_file *seq, void *v)
 824 {
 825         struct timespec64 now;
 826         struct obd_device *obd = seq->private;
 827         struct osc_stats *stats = &obd2osc_dev(obd)->od_stats;
 828
 829         ktime_get_real_ts64(&now);
 830
 831         seq_printf(seq, "snapshot_time:         %lld.%09lu (secs.nsecs)\n",
 832                    (s64)now.tv_sec, now.tv_nsec);
 833         seq_printf(seq, "lockless_write_bytes\t\t%llu\n",
 834                    stats->os_lockless_writes);
 835         seq_printf(seq, "lockless_read_bytes\t\t%llu\n",
 836                    stats->os_lockless_reads);
 837         return 0;
 838 }
 839
 840 static ssize_t osc_stats_seq_write(struct file *file,
 841                                    const char __user *buf,
 842                                    size_t len, loff_t *off)
 843 {
 844         struct seq_file *seq = file->private_data;
 845         struct obd_device *obd = seq->private;
 846         struct osc_stats *stats = &obd2osc_dev(obd)->od_stats;
 847
 848         memset(stats, 0, sizeof(*stats));
 849         return len;
 850 }
 851
 852 LPROC_SEQ_FOPS(osc_stats);
 853
 854 int lprocfs_osc_attach_seqstat(struct obd_device *obd)
 855 {
 856         int rc;
 857
 858         rc = lprocfs_seq_create(obd->obd_proc_entry, "osc_stats", 0644,
 859                                 &osc_stats_fops, obd);
 860         if (rc == 0)
 861                 rc = lprocfs_obd_seq_create(obd, "rpc_stats", 0644,
 862                                             &osc_rpc_stats_fops, obd);
 863
 864         return rc;
 865 }
 866 #endif /* CONFIG_PROC_FS */
 867
 868 static struct attribute *osc_attrs[] = {
 869         &lustre_attr_active.attr,
 870         &lustre_attr_checksums.attr,
 871         &lustre_attr_checksum_dump.attr,
 872         &lustre_attr_cur_dirty_bytes.attr,
 873         &lustre_attr_cur_lost_grant_bytes.attr,
 874         &lustre_attr_cur_dirty_grant_bytes.attr,
 875         &lustre_attr_destroys_in_flight.attr,
 876         &lustre_attr_grant_shrink_interval.attr,
 877         &lustre_attr_max_dirty_mb.attr,
 878         &lustre_attr_max_rpcs_in_flight.attr,
 879         &lustre_attr_short_io_bytes.attr,
 880         &lustre_attr_resend_count.attr,
 881         &lustre_attr_ost_conn_uuid.attr,
 882         &lustre_attr_conn_uuid.attr,
 883         &lustre_attr_ping.attr,
 884         &lustre_attr_idle_timeout.attr,
 885         &lustre_attr_idle_connect.attr,
 886         &lustre_attr_grant_shrink.attr,
 887         NULL,
 888 };
 889
 890 int osc_tunables_init(struct obd_device *obd)
 891 {
 892         int rc;
 893
 894         obd->obd_vars = lprocfs_osc_obd_vars;
 895         obd->obd_ktype.default_attrs = osc_attrs;
 896         rc = lprocfs_obd_setup(obd, false);
 897         if (rc)
 898                 return rc;
 899 #ifdef CONFIG_PROC_FS
 900         /* If the basic OSC proc tree construction succeeded then
 901          * lets do the rest.
 902          */
 903         rc = lprocfs_osc_attach_seqstat(obd);
 904         if (rc)
 905                 goto obd_cleanup;
 906
 907 #endif /* CONFIG_PROC_FS */
 908         rc = sptlrpc_lprocfs_cliobd_attach(obd);
 909         if (rc)
 910                 goto obd_cleanup;
 911
 912         ptlrpc_lprocfs_register_obd(obd);
 913 obd_cleanup:
 914         if (rc)
 915                 lprocfs_obd_cleanup(obd);
 916         return rc;
 917 }