| 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, 2015, 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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_SHIFT); /* MB -> pages */ |
| 166 | |
| 167 | if (pages_number <= 0 || |
| 168 | pages_number > OSC_MAX_DIRTY_MB_MAX << (20 - PAGE_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_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 | |
| 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_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 */ |
| 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_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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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) |
| 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 | |
| 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) |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | int rc; |
| 484 | int val; |
| 485 | |
| 486 | rc = kstrtoint(buffer, 10, &val); |
| 487 | if (rc) |
| 488 | return rc; |
| 489 | |
| 490 | if (val < 0) |
| 491 | return -EINVAL; |
| 492 | |
| 493 | od->od_contention_time = val; |
| 494 | |
| 495 | return count; |
| 496 | } |
| 497 | LUSTRE_RW_ATTR(contention_seconds); |
| 498 | |
| 499 | static ssize_t lockless_truncate_show(struct kobject *kobj, |
| 500 | struct attribute *attr, |
| 501 | char *buf) |
| 502 | { |
| 503 | struct obd_device *obd = container_of(kobj, struct obd_device, |
| 504 | obd_kobj); |
| 505 | struct osc_device *od = obd2osc_dev(obd); |
| 506 | |
| 507 | return sprintf(buf, "%u\n", od->od_lockless_truncate); |
| 508 | } |
| 509 | |
| 510 | static ssize_t lockless_truncate_store(struct kobject *kobj, |
| 511 | struct attribute *attr, |
| 512 | const char *buffer, |
| 513 | size_t count) |
| 514 | { |
| 515 | struct obd_device *obd = container_of(kobj, struct obd_device, |
| 516 | obd_kobj); |
| 517 | struct osc_device *od = obd2osc_dev(obd); |
| 518 | int rc; |
| 519 | unsigned int val; |
| 520 | |
| 521 | rc = kstrtouint(buffer, 10, &val); |
| 522 | if (rc) |
| 523 | return rc; |
| 524 | |
| 525 | od->od_lockless_truncate = val; |
| 526 | |
| 527 | return count; |
| 528 | } |
| 529 | LUSTRE_RW_ATTR(lockless_truncate); |
| 530 | |
| 531 | static ssize_t destroys_in_flight_show(struct kobject *kobj, |
| 532 | struct attribute *attr, |
| 533 | char *buf) |
| 534 | { |
| 535 | struct obd_device *obd = container_of(kobj, struct obd_device, |
| 536 | obd_kobj); |
| 537 | |
| 538 | return sprintf(buf, "%u\n", |
| 539 | atomic_read(&obd->u.cli.cl_destroy_in_flight)); |
| 540 | } |
| 541 | LUSTRE_RO_ATTR(destroys_in_flight); |
| 542 | |
| 543 | static ssize_t max_pages_per_rpc_show(struct kobject *kobj, |
| 544 | struct attribute *attr, |
| 545 | char *buf) |
| 546 | { |
| 547 | struct obd_device *dev = container_of(kobj, struct obd_device, |
| 548 | obd_kobj); |
| 549 | struct client_obd *cli = &dev->u.cli; |
| 550 | |
| 551 | return sprintf(buf, "%d\n", cli->cl_max_pages_per_rpc); |
| 552 | } |
| 553 | |
| 554 | static ssize_t max_pages_per_rpc_store(struct kobject *kobj, |
| 555 | struct attribute *attr, |
| 556 | const char *buffer, |
| 557 | size_t count) |
| 558 | { |
| 559 | struct obd_device *dev = container_of(kobj, struct obd_device, |
| 560 | obd_kobj); |
| 561 | struct client_obd *cli = &dev->u.cli; |
| 562 | struct obd_connect_data *ocd = &cli->cl_import->imp_connect_data; |
| 563 | int chunk_mask, rc; |
| 564 | unsigned long long val; |
| 565 | |
| 566 | rc = kstrtoull(buffer, 10, &val); |
| 567 | if (rc) |
| 568 | return rc; |
| 569 | |
| 570 | /* if the max_pages is specified in bytes, convert to pages */ |
| 571 | if (val >= ONE_MB_BRW_SIZE) |
| 572 | val >>= PAGE_SHIFT; |
| 573 | |
| 574 | chunk_mask = ~((1 << (cli->cl_chunkbits - PAGE_SHIFT)) - 1); |
| 575 | /* max_pages_per_rpc must be chunk aligned */ |
| 576 | val = (val + ~chunk_mask) & chunk_mask; |
| 577 | if (val == 0 || val > ocd->ocd_brw_size >> PAGE_SHIFT) { |
| 578 | return -ERANGE; |
| 579 | } |
| 580 | client_obd_list_lock(&cli->cl_loi_list_lock); |
| 581 | cli->cl_max_pages_per_rpc = val; |
| 582 | client_obd_list_unlock(&cli->cl_loi_list_lock); |
| 583 | |
| 584 | return count; |
| 585 | } |
| 586 | LUSTRE_RW_ATTR(max_pages_per_rpc); |
| 587 | |
| 588 | LPROC_SEQ_FOPS_RO_TYPE(osc, connect_flags); |
| 589 | LPROC_SEQ_FOPS_RO_TYPE(osc, server_uuid); |
| 590 | LPROC_SEQ_FOPS_RO_TYPE(osc, conn_uuid); |
| 591 | LPROC_SEQ_FOPS_RO_TYPE(osc, timeouts); |
| 592 | LPROC_SEQ_FOPS_RO_TYPE(osc, state); |
| 593 | |
| 594 | LPROC_SEQ_FOPS_WR_ONLY(osc, ping); |
| 595 | |
| 596 | LPROC_SEQ_FOPS_RW_TYPE(osc, import); |
| 597 | LPROC_SEQ_FOPS_RW_TYPE(osc, pinger_recov); |
| 598 | |
| 599 | static struct lprocfs_vars lprocfs_osc_obd_vars[] = { |
| 600 | { "ping", &osc_ping_fops, NULL, 0222 }, |
| 601 | { "connect_flags", &osc_connect_flags_fops, NULL, 0 }, |
| 602 | /*{ "filegroups", lprocfs_rd_filegroups, NULL, 0 },*/ |
| 603 | { "ost_server_uuid", &osc_server_uuid_fops, NULL, 0 }, |
| 604 | { "ost_conn_uuid", &osc_conn_uuid_fops, NULL, 0 }, |
| 605 | { "osc_cached_mb", &osc_cached_mb_fops, NULL }, |
| 606 | { "checksum_type", &osc_checksum_type_fops, NULL }, |
| 607 | { "timeouts", &osc_timeouts_fops, NULL, 0 }, |
| 608 | { "import", &osc_import_fops, NULL }, |
| 609 | { "state", &osc_state_fops, NULL, 0 }, |
| 610 | { "pinger_recov", &osc_pinger_recov_fops, NULL }, |
| 611 | { NULL } |
| 612 | }; |
| 613 | |
| 614 | #define pct(a, b) (b ? a * 100 / b : 0) |
| 615 | |
| 616 | static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v) |
| 617 | { |
| 618 | struct timespec64 now; |
| 619 | struct obd_device *dev = seq->private; |
| 620 | struct client_obd *cli = &dev->u.cli; |
| 621 | unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum; |
| 622 | int i; |
| 623 | |
| 624 | ktime_get_real_ts64(&now); |
| 625 | |
| 626 | client_obd_list_lock(&cli->cl_loi_list_lock); |
| 627 | |
| 628 | seq_printf(seq, "snapshot_time: %llu.%9lu (secs.usecs)\n", |
| 629 | (s64)now.tv_sec, (unsigned long)now.tv_nsec); |
| 630 | seq_printf(seq, "read RPCs in flight: %d\n", |
| 631 | cli->cl_r_in_flight); |
| 632 | seq_printf(seq, "write RPCs in flight: %d\n", |
| 633 | cli->cl_w_in_flight); |
| 634 | seq_printf(seq, "pending write pages: %d\n", |
| 635 | atomic_read(&cli->cl_pending_w_pages)); |
| 636 | seq_printf(seq, "pending read pages: %d\n", |
| 637 | atomic_read(&cli->cl_pending_r_pages)); |
| 638 | |
| 639 | seq_puts(seq, "\n\t\t\tread\t\t\twrite\n"); |
| 640 | seq_puts(seq, "pages per rpc rpcs % cum % |"); |
| 641 | seq_puts(seq, " rpcs % cum %\n"); |
| 642 | |
| 643 | read_tot = lprocfs_oh_sum(&cli->cl_read_page_hist); |
| 644 | write_tot = lprocfs_oh_sum(&cli->cl_write_page_hist); |
| 645 | |
| 646 | read_cum = 0; |
| 647 | write_cum = 0; |
| 648 | for (i = 0; i < OBD_HIST_MAX; i++) { |
| 649 | unsigned long r = cli->cl_read_page_hist.oh_buckets[i]; |
| 650 | unsigned long w = cli->cl_write_page_hist.oh_buckets[i]; |
| 651 | |
| 652 | read_cum += r; |
| 653 | write_cum += w; |
| 654 | seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n", |
| 655 | 1 << i, r, pct(r, read_tot), |
| 656 | pct(read_cum, read_tot), w, |
| 657 | pct(w, write_tot), |
| 658 | pct(write_cum, write_tot)); |
| 659 | if (read_cum == read_tot && write_cum == write_tot) |
| 660 | break; |
| 661 | } |
| 662 | |
| 663 | seq_puts(seq, "\n\t\t\tread\t\t\twrite\n"); |
| 664 | seq_puts(seq, "rpcs in flight rpcs % cum % |"); |
| 665 | seq_puts(seq, " rpcs % cum %\n"); |
| 666 | |
| 667 | read_tot = lprocfs_oh_sum(&cli->cl_read_rpc_hist); |
| 668 | write_tot = lprocfs_oh_sum(&cli->cl_write_rpc_hist); |
| 669 | |
| 670 | read_cum = 0; |
| 671 | write_cum = 0; |
| 672 | for (i = 0; i < OBD_HIST_MAX; i++) { |
| 673 | unsigned long r = cli->cl_read_rpc_hist.oh_buckets[i]; |
| 674 | unsigned long w = cli->cl_write_rpc_hist.oh_buckets[i]; |
| 675 | |
| 676 | read_cum += r; |
| 677 | write_cum += w; |
| 678 | seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n", |
| 679 | i, r, pct(r, read_tot), |
| 680 | pct(read_cum, read_tot), w, |
| 681 | pct(w, write_tot), |
| 682 | pct(write_cum, write_tot)); |
| 683 | if (read_cum == read_tot && write_cum == write_tot) |
| 684 | break; |
| 685 | } |
| 686 | |
| 687 | seq_puts(seq, "\n\t\t\tread\t\t\twrite\n"); |
| 688 | seq_puts(seq, "offset rpcs % cum % |"); |
| 689 | seq_puts(seq, " rpcs % cum %\n"); |
| 690 | |
| 691 | read_tot = lprocfs_oh_sum(&cli->cl_read_offset_hist); |
| 692 | write_tot = lprocfs_oh_sum(&cli->cl_write_offset_hist); |
| 693 | |
| 694 | read_cum = 0; |
| 695 | write_cum = 0; |
| 696 | for (i = 0; i < OBD_HIST_MAX; i++) { |
| 697 | unsigned long r = cli->cl_read_offset_hist.oh_buckets[i]; |
| 698 | unsigned long w = cli->cl_write_offset_hist.oh_buckets[i]; |
| 699 | |
| 700 | read_cum += r; |
| 701 | write_cum += w; |
| 702 | seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n", |
| 703 | (i == 0) ? 0 : 1 << (i - 1), |
| 704 | r, pct(r, read_tot), pct(read_cum, read_tot), |
| 705 | w, pct(w, write_tot), pct(write_cum, write_tot)); |
| 706 | if (read_cum == read_tot && write_cum == write_tot) |
| 707 | break; |
| 708 | } |
| 709 | |
| 710 | client_obd_list_unlock(&cli->cl_loi_list_lock); |
| 711 | |
| 712 | return 0; |
| 713 | } |
| 714 | |
| 715 | #undef pct |
| 716 | |
| 717 | static ssize_t osc_rpc_stats_seq_write(struct file *file, |
| 718 | const char __user *buf, |
| 719 | size_t len, loff_t *off) |
| 720 | { |
| 721 | struct seq_file *seq = file->private_data; |
| 722 | struct obd_device *dev = seq->private; |
| 723 | struct client_obd *cli = &dev->u.cli; |
| 724 | |
| 725 | lprocfs_oh_clear(&cli->cl_read_rpc_hist); |
| 726 | lprocfs_oh_clear(&cli->cl_write_rpc_hist); |
| 727 | lprocfs_oh_clear(&cli->cl_read_page_hist); |
| 728 | lprocfs_oh_clear(&cli->cl_write_page_hist); |
| 729 | lprocfs_oh_clear(&cli->cl_read_offset_hist); |
| 730 | lprocfs_oh_clear(&cli->cl_write_offset_hist); |
| 731 | |
| 732 | return len; |
| 733 | } |
| 734 | |
| 735 | LPROC_SEQ_FOPS(osc_rpc_stats); |
| 736 | |
| 737 | static int osc_stats_seq_show(struct seq_file *seq, void *v) |
| 738 | { |
| 739 | struct timespec64 now; |
| 740 | struct obd_device *dev = seq->private; |
| 741 | struct osc_stats *stats = &obd2osc_dev(dev)->od_stats; |
| 742 | |
| 743 | ktime_get_real_ts64(&now); |
| 744 | |
| 745 | seq_printf(seq, "snapshot_time: %llu.%9lu (secs.usecs)\n", |
| 746 | (s64)now.tv_sec, (unsigned long)now.tv_nsec); |
| 747 | seq_printf(seq, "lockless_write_bytes\t\t%llu\n", |
| 748 | stats->os_lockless_writes); |
| 749 | seq_printf(seq, "lockless_read_bytes\t\t%llu\n", |
| 750 | stats->os_lockless_reads); |
| 751 | seq_printf(seq, "lockless_truncate\t\t%llu\n", |
| 752 | stats->os_lockless_truncates); |
| 753 | return 0; |
| 754 | } |
| 755 | |
| 756 | static ssize_t osc_stats_seq_write(struct file *file, |
| 757 | const char __user *buf, |
| 758 | size_t len, loff_t *off) |
| 759 | { |
| 760 | struct seq_file *seq = file->private_data; |
| 761 | struct obd_device *dev = seq->private; |
| 762 | struct osc_stats *stats = &obd2osc_dev(dev)->od_stats; |
| 763 | |
| 764 | memset(stats, 0, sizeof(*stats)); |
| 765 | return len; |
| 766 | } |
| 767 | |
| 768 | LPROC_SEQ_FOPS(osc_stats); |
| 769 | |
| 770 | int lproc_osc_attach_seqstat(struct obd_device *dev) |
| 771 | { |
| 772 | int rc; |
| 773 | |
| 774 | rc = ldebugfs_seq_create(dev->obd_debugfs_entry, "osc_stats", 0644, |
| 775 | &osc_stats_fops, dev); |
| 776 | if (rc == 0) |
| 777 | rc = ldebugfs_obd_seq_create(dev, "rpc_stats", 0644, |
| 778 | &osc_rpc_stats_fops, dev); |
| 779 | |
| 780 | return rc; |
| 781 | } |
| 782 | |
| 783 | static struct attribute *osc_attrs[] = { |
| 784 | &lustre_attr_active.attr, |
| 785 | &lustre_attr_checksums.attr, |
| 786 | &lustre_attr_contention_seconds.attr, |
| 787 | &lustre_attr_cur_dirty_bytes.attr, |
| 788 | &lustre_attr_cur_grant_bytes.attr, |
| 789 | &lustre_attr_cur_lost_grant_bytes.attr, |
| 790 | &lustre_attr_destroys_in_flight.attr, |
| 791 | &lustre_attr_grant_shrink_interval.attr, |
| 792 | &lustre_attr_lockless_truncate.attr, |
| 793 | &lustre_attr_max_dirty_mb.attr, |
| 794 | &lustre_attr_max_pages_per_rpc.attr, |
| 795 | &lustre_attr_max_rpcs_in_flight.attr, |
| 796 | &lustre_attr_resend_count.attr, |
| 797 | NULL, |
| 798 | }; |
| 799 | |
| 800 | static struct attribute_group osc_attr_group = { |
| 801 | .attrs = osc_attrs, |
| 802 | }; |
| 803 | |
| 804 | void lprocfs_osc_init_vars(struct lprocfs_static_vars *lvars) |
| 805 | { |
| 806 | lvars->sysfs_vars = &osc_attr_group; |
| 807 | lvars->obd_vars = lprocfs_osc_obd_vars; |
| 808 | } |