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,
8 * as published by the Free Software Foundation.
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).
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
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
27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2013, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/obdclass/obd_config.c
41 #define DEBUG_SUBSYSTEM S_CLASS
43 #include <obd_class.h>
44 #include <linux/string.h>
45 #include <lustre_disk.h>
47 #include <liblustre.h>
49 #include <obd_class.h>
52 #include <lustre_log.h>
53 #include <lprocfs_status.h>
54 #include <lustre_param.h>
56 #include "llog_internal.h"
58 static cfs_hash_ops_t uuid_hash_ops;
59 static cfs_hash_ops_t nid_hash_ops;
60 static cfs_hash_ops_t nid_stat_hash_ops;
62 /*********** string parsing utils *********/
64 /* returns 0 if we find this key in the buffer, else 1 */
65 int class_find_param(char *buf, char *key, char **valp)
72 if ((ptr = strstr(buf, key)) == NULL)
76 *valp = ptr + strlen(key);
80 EXPORT_SYMBOL(class_find_param);
83 * Check whether the proc parameter \a param is an old parameter or not from
84 * the array \a ptr which contains the mapping from old parameters to new ones.
85 * If it's an old one, then return the pointer to the cfg_interop_param struc-
86 * ture which contains both the old and new parameters.
88 * \param param proc parameter
89 * \param ptr an array which contains the mapping from
90 * old parameters to new ones
92 * \retval valid-pointer pointer to the cfg_interop_param structure
93 * which contains the old and new parameters
94 * \retval NULL \a param or \a ptr is NULL,
95 * or \a param is not an old parameter
97 struct cfg_interop_param *class_find_old_param(const char *param,
98 struct cfg_interop_param *ptr)
103 if (param == NULL || ptr == NULL)
106 value = strchr(param, '=');
108 name_len = strlen(param);
110 name_len = value - param;
112 while (ptr->old_param != NULL) {
113 if (strncmp(param, ptr->old_param, name_len) == 0 &&
114 name_len == strlen(ptr->old_param))
121 EXPORT_SYMBOL(class_find_old_param);
124 * Finds a parameter in \a params and copies it to \a copy.
126 * Leading spaces are skipped. Next space or end of string is the
127 * parameter terminator with the exception that spaces inside single or double
128 * quotes get included into a parameter. The parameter is copied into \a copy
129 * which has to be allocated big enough by a caller, quotes are stripped in
130 * the copy and the copy is terminated by 0.
132 * On return \a params is set to next parameter or to NULL if last
133 * parameter is returned.
135 * \retval 0 if parameter is returned in \a copy
136 * \retval 1 otherwise
137 * \retval -EINVAL if unbalanced quota is found
139 int class_get_next_param(char **params, char *copy)
154 q1 = strpbrk(str, " '\"");
157 memcpy(copy, str, len);
164 memcpy(copy, str, len);
170 memcpy(copy, str, len);
173 /* search for the matching closing quote */
175 q2 = strchr(str, *q1);
177 CERROR("Unbalanced quota in parameters: \"%s\"\n",
182 memcpy(copy, str, len);
188 EXPORT_SYMBOL(class_get_next_param);
190 /* returns 0 if this is the first key in the buffer, else 1.
191 valp points to first char after key. */
192 int class_match_param(char *buf, char *key, char **valp)
197 if (memcmp(buf, key, strlen(key)) != 0)
201 *valp = buf + strlen(key);
205 EXPORT_SYMBOL(class_match_param);
207 static int parse_nid(char *buf, void *value, int quiet)
209 lnet_nid_t *nid = (lnet_nid_t *)value;
211 *nid = libcfs_str2nid(buf);
212 if (*nid != LNET_NID_ANY)
216 LCONSOLE_ERROR_MSG(0x159, "Can't parse NID '%s'\n", buf);
220 static int parse_net(char *buf, void *value)
222 __u32 *net = (__u32 *)value;
224 *net = libcfs_str2net(buf);
225 CDEBUG(D_INFO, "Net %s\n", libcfs_net2str(*net));
237 endh is set to next separator */
238 static int class_parse_value(char *buf, int opc, void *value, char **endh,
247 while (*buf == ',' || *buf == ':')
249 if (*buf == ' ' || *buf == '/' || *buf == '\0')
252 /* nid separators or end of nids */
253 endp = strpbrk(buf, ",: /");
255 endp = buf + strlen(buf);
262 case CLASS_PARSE_NID:
263 rc = parse_nid(buf, value, quiet);
265 case CLASS_PARSE_NET:
266 rc = parse_net(buf, value);
277 int class_parse_nid(char *buf, lnet_nid_t *nid, char **endh)
279 return class_parse_value(buf, CLASS_PARSE_NID, (void *)nid, endh, 0);
281 EXPORT_SYMBOL(class_parse_nid);
283 int class_parse_nid_quiet(char *buf, lnet_nid_t *nid, char **endh)
285 return class_parse_value(buf, CLASS_PARSE_NID, (void *)nid, endh, 1);
287 EXPORT_SYMBOL(class_parse_nid_quiet);
289 int class_parse_net(char *buf, __u32 *net, char **endh)
291 return class_parse_value(buf, CLASS_PARSE_NET, (void *)net, endh, 0);
293 EXPORT_SYMBOL(class_parse_net);
295 /* 1 param contains key and match
296 * 0 param contains key and not match
297 * -1 param does not contain key
299 int class_match_nid(char *buf, char *key, lnet_nid_t nid)
304 while (class_find_param(buf, key, &buf) == 0) {
305 /* please restrict to the nids pertaining to
306 * the specified nids */
307 while (class_parse_nid(buf, &tmp, &buf) == 0) {
315 EXPORT_SYMBOL(class_match_nid);
317 int class_match_net(char *buf, char *key, __u32 net)
322 while (class_find_param(buf, key, &buf) == 0) {
323 /* please restrict to the nids pertaining to
324 * the specified networks */
325 while (class_parse_net(buf, &tmp, &buf) == 0) {
333 EXPORT_SYMBOL(class_match_net);
335 /********************** class fns **********************/
338 * Create a new obd device and set the type, name and uuid. If successful,
339 * the new device can be accessed by either name or uuid.
341 int class_attach(struct lustre_cfg *lcfg)
343 struct obd_device *obd = NULL;
344 char *typename, *name, *uuid;
348 if (!LUSTRE_CFG_BUFLEN(lcfg, 1)) {
349 CERROR("No type passed!\n");
352 typename = lustre_cfg_string(lcfg, 1);
354 if (!LUSTRE_CFG_BUFLEN(lcfg, 0)) {
355 CERROR("No name passed!\n");
358 name = lustre_cfg_string(lcfg, 0);
360 if (!LUSTRE_CFG_BUFLEN(lcfg, 2)) {
361 CERROR("No UUID passed!\n");
364 uuid = lustre_cfg_string(lcfg, 2);
366 CDEBUG(D_IOCTL, "attach type %s name: %s uuid: %s\n",
367 MKSTR(typename), MKSTR(name), MKSTR(uuid));
369 obd = class_newdev(typename, name);
371 /* Already exists or out of obds */
374 CERROR("Cannot create device %s of type %s : %d\n",
378 LASSERTF(obd != NULL, "Cannot get obd device %s of type %s\n",
380 LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC,
381 "obd %p obd_magic %08X != %08X\n",
382 obd, obd->obd_magic, OBD_DEVICE_MAGIC);
383 LASSERTF(strncmp(obd->obd_name, name, strlen(name)) == 0,
384 "%p obd_name %s != %s\n", obd, obd->obd_name, name);
386 rwlock_init(&obd->obd_pool_lock);
387 obd->obd_pool_limit = 0;
388 obd->obd_pool_slv = 0;
390 CFS_INIT_LIST_HEAD(&obd->obd_exports);
391 CFS_INIT_LIST_HEAD(&obd->obd_unlinked_exports);
392 CFS_INIT_LIST_HEAD(&obd->obd_delayed_exports);
393 CFS_INIT_LIST_HEAD(&obd->obd_exports_timed);
394 CFS_INIT_LIST_HEAD(&obd->obd_nid_stats);
395 spin_lock_init(&obd->obd_nid_lock);
396 spin_lock_init(&obd->obd_dev_lock);
397 mutex_init(&obd->obd_dev_mutex);
398 spin_lock_init(&obd->obd_osfs_lock);
399 /* obd->obd_osfs_age must be set to a value in the distant
400 * past to guarantee a fresh statfs is fetched on mount. */
401 obd->obd_osfs_age = cfs_time_shift_64(-1000);
403 /* XXX belongs in setup not attach */
404 init_rwsem(&obd->obd_observer_link_sem);
406 cfs_init_timer(&obd->obd_recovery_timer);
407 spin_lock_init(&obd->obd_recovery_task_lock);
408 init_waitqueue_head(&obd->obd_next_transno_waitq);
409 init_waitqueue_head(&obd->obd_evict_inprogress_waitq);
410 CFS_INIT_LIST_HEAD(&obd->obd_req_replay_queue);
411 CFS_INIT_LIST_HEAD(&obd->obd_lock_replay_queue);
412 CFS_INIT_LIST_HEAD(&obd->obd_final_req_queue);
413 CFS_INIT_LIST_HEAD(&obd->obd_evict_list);
414 INIT_LIST_HEAD(&obd->obd_lwp_list);
416 llog_group_init(&obd->obd_olg, FID_SEQ_LLOG);
418 obd->obd_conn_inprogress = 0;
421 if (len >= sizeof(obd->obd_uuid)) {
422 CERROR("uuid must be < %d bytes long\n",
423 (int)sizeof(obd->obd_uuid));
424 GOTO(out, rc = -EINVAL);
426 memcpy(obd->obd_uuid.uuid, uuid, len);
429 if (OBP(obd, attach)) {
430 rc = OBP(obd,attach)(obd, sizeof *lcfg, lcfg);
432 GOTO(out, rc = -EINVAL);
435 /* Detach drops this */
436 spin_lock(&obd->obd_dev_lock);
437 atomic_set(&obd->obd_refcount, 1);
438 spin_unlock(&obd->obd_dev_lock);
439 lu_ref_init(&obd->obd_reference);
440 lu_ref_add(&obd->obd_reference, "attach", obd);
442 obd->obd_attached = 1;
443 CDEBUG(D_IOCTL, "OBD: dev %d attached type %s with refcount %d\n",
444 obd->obd_minor, typename, atomic_read(&obd->obd_refcount));
448 class_release_dev(obd);
452 EXPORT_SYMBOL(class_attach);
454 /** Create hashes, self-export, and call type-specific setup.
455 * Setup is effectively the "start this obd" call.
457 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
460 struct obd_export *exp;
463 LASSERT(obd != NULL);
464 LASSERTF(obd == class_num2obd(obd->obd_minor),
465 "obd %p != obd_devs[%d] %p\n",
466 obd, obd->obd_minor, class_num2obd(obd->obd_minor));
467 LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC,
468 "obd %p obd_magic %08x != %08x\n",
469 obd, obd->obd_magic, OBD_DEVICE_MAGIC);
471 /* have we attached a type to this device? */
472 if (!obd->obd_attached) {
473 CERROR("Device %d not attached\n", obd->obd_minor);
477 if (obd->obd_set_up) {
478 CERROR("Device %d already setup (type %s)\n",
479 obd->obd_minor, obd->obd_type->typ_name);
483 /* is someone else setting us up right now? (attach inits spinlock) */
484 spin_lock(&obd->obd_dev_lock);
485 if (obd->obd_starting) {
486 spin_unlock(&obd->obd_dev_lock);
487 CERROR("Device %d setup in progress (type %s)\n",
488 obd->obd_minor, obd->obd_type->typ_name);
491 /* just leave this on forever. I can't use obd_set_up here because
492 other fns check that status, and we're not actually set up yet. */
493 obd->obd_starting = 1;
494 obd->obd_uuid_hash = NULL;
495 obd->obd_nid_hash = NULL;
496 obd->obd_nid_stats_hash = NULL;
497 spin_unlock(&obd->obd_dev_lock);
499 /* create an uuid-export lustre hash */
500 obd->obd_uuid_hash = cfs_hash_create("UUID_HASH",
503 HASH_UUID_BKT_BITS, 0,
506 &uuid_hash_ops, CFS_HASH_DEFAULT);
507 if (!obd->obd_uuid_hash)
508 GOTO(err_hash, err = -ENOMEM);
510 /* create a nid-export lustre hash */
511 obd->obd_nid_hash = cfs_hash_create("NID_HASH",
514 HASH_NID_BKT_BITS, 0,
517 &nid_hash_ops, CFS_HASH_DEFAULT);
518 if (!obd->obd_nid_hash)
519 GOTO(err_hash, err = -ENOMEM);
521 /* create a nid-stats lustre hash */
522 obd->obd_nid_stats_hash = cfs_hash_create("NID_STATS",
523 HASH_NID_STATS_CUR_BITS,
524 HASH_NID_STATS_MAX_BITS,
525 HASH_NID_STATS_BKT_BITS, 0,
528 &nid_stat_hash_ops, CFS_HASH_DEFAULT);
529 if (!obd->obd_nid_stats_hash)
530 GOTO(err_hash, err = -ENOMEM);
532 exp = class_new_export(obd, &obd->obd_uuid);
534 GOTO(err_hash, err = PTR_ERR(exp));
536 obd->obd_self_export = exp;
537 cfs_list_del_init(&exp->exp_obd_chain_timed);
538 class_export_put(exp);
540 err = obd_setup(obd, lcfg);
546 spin_lock(&obd->obd_dev_lock);
547 /* cleanup drops this */
548 class_incref(obd, "setup", obd);
549 spin_unlock(&obd->obd_dev_lock);
551 CDEBUG(D_IOCTL, "finished setup of obd %s (uuid %s)\n",
552 obd->obd_name, obd->obd_uuid.uuid);
556 if (obd->obd_self_export) {
557 class_unlink_export(obd->obd_self_export);
558 obd->obd_self_export = NULL;
561 if (obd->obd_uuid_hash) {
562 cfs_hash_putref(obd->obd_uuid_hash);
563 obd->obd_uuid_hash = NULL;
565 if (obd->obd_nid_hash) {
566 cfs_hash_putref(obd->obd_nid_hash);
567 obd->obd_nid_hash = NULL;
569 if (obd->obd_nid_stats_hash) {
570 cfs_hash_putref(obd->obd_nid_stats_hash);
571 obd->obd_nid_stats_hash = NULL;
573 obd->obd_starting = 0;
574 CERROR("setup %s failed (%d)\n", obd->obd_name, err);
577 EXPORT_SYMBOL(class_setup);
579 /** We have finished using this obd and are ready to destroy it.
580 * There can be no more references to this obd.
582 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg)
586 if (obd->obd_set_up) {
587 CERROR("OBD device %d still set up\n", obd->obd_minor);
591 spin_lock(&obd->obd_dev_lock);
592 if (!obd->obd_attached) {
593 spin_unlock(&obd->obd_dev_lock);
594 CERROR("OBD device %d not attached\n", obd->obd_minor);
597 obd->obd_attached = 0;
598 spin_unlock(&obd->obd_dev_lock);
600 CDEBUG(D_IOCTL, "detach on obd %s (uuid %s)\n",
601 obd->obd_name, obd->obd_uuid.uuid);
603 class_decref(obd, "attach", obd);
606 EXPORT_SYMBOL(class_detach);
608 /** Start shutting down the obd. There may be in-progess ops when
609 * this is called. We tell them to start shutting down with a call
610 * to class_disconnect_exports().
612 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg)
618 OBD_RACE(OBD_FAIL_LDLM_RECOV_CLIENTS);
620 if (!obd->obd_set_up) {
621 CERROR("Device %d not setup\n", obd->obd_minor);
625 spin_lock(&obd->obd_dev_lock);
626 if (obd->obd_stopping) {
627 spin_unlock(&obd->obd_dev_lock);
628 CERROR("OBD %d already stopping\n", obd->obd_minor);
631 /* Leave this on forever */
632 obd->obd_stopping = 1;
634 /* wait for already-arrived-connections to finish. */
635 while (obd->obd_conn_inprogress > 0) {
636 spin_unlock(&obd->obd_dev_lock);
640 spin_lock(&obd->obd_dev_lock);
642 spin_unlock(&obd->obd_dev_lock);
644 if (lcfg->lcfg_bufcount >= 2 && LUSTRE_CFG_BUFLEN(lcfg, 1) > 0) {
645 for (flag = lustre_cfg_string(lcfg, 1); *flag != 0; flag++)
651 LCONSOLE_WARN("Failing over %s\n",
654 obd->obd_no_transno = 1;
655 obd->obd_no_recov = 1;
656 if (OBP(obd, iocontrol)) {
657 obd_iocontrol(OBD_IOC_SYNC,
658 obd->obd_self_export,
663 CERROR("Unrecognised flag '%c'\n", *flag);
667 LASSERT(obd->obd_self_export);
669 /* The three references that should be remaining are the
670 * obd_self_export and the attach and setup references. */
671 if (atomic_read(&obd->obd_refcount) > 3) {
672 /* refcounf - 3 might be the number of real exports
673 (excluding self export). But class_incref is called
674 by other things as well, so don't count on it. */
675 CDEBUG(D_IOCTL, "%s: forcing exports to disconnect: %d\n",
676 obd->obd_name, atomic_read(&obd->obd_refcount) - 3);
677 dump_exports(obd, 0);
678 class_disconnect_exports(obd);
681 /* Precleanup, we must make sure all exports get destroyed. */
682 err = obd_precleanup(obd, OBD_CLEANUP_EXPORTS);
684 CERROR("Precleanup %s returned %d\n",
687 /* destroy an uuid-export hash body */
688 if (obd->obd_uuid_hash) {
689 cfs_hash_putref(obd->obd_uuid_hash);
690 obd->obd_uuid_hash = NULL;
693 /* destroy a nid-export hash body */
694 if (obd->obd_nid_hash) {
695 cfs_hash_putref(obd->obd_nid_hash);
696 obd->obd_nid_hash = NULL;
699 /* destroy a nid-stats hash body */
700 if (obd->obd_nid_stats_hash) {
701 cfs_hash_putref(obd->obd_nid_stats_hash);
702 obd->obd_nid_stats_hash = NULL;
705 class_decref(obd, "setup", obd);
710 EXPORT_SYMBOL(class_cleanup);
712 struct obd_device *class_incref(struct obd_device *obd,
713 const char *scope, const void *source)
715 lu_ref_add_atomic(&obd->obd_reference, scope, source);
716 atomic_inc(&obd->obd_refcount);
717 CDEBUG(D_INFO, "incref %s (%p) now %d\n", obd->obd_name, obd,
718 atomic_read(&obd->obd_refcount));
722 EXPORT_SYMBOL(class_incref);
724 void class_decref(struct obd_device *obd, const char *scope, const void *source)
729 spin_lock(&obd->obd_dev_lock);
730 atomic_dec(&obd->obd_refcount);
731 refs = atomic_read(&obd->obd_refcount);
732 spin_unlock(&obd->obd_dev_lock);
733 lu_ref_del(&obd->obd_reference, scope, source);
735 CDEBUG(D_INFO, "Decref %s (%p) now %d\n", obd->obd_name, obd, refs);
737 if ((refs == 1) && obd->obd_stopping) {
738 /* All exports have been destroyed; there should
739 be no more in-progress ops by this point.*/
741 spin_lock(&obd->obd_self_export->exp_lock);
742 obd->obd_self_export->exp_flags |= exp_flags_from_obd(obd);
743 spin_unlock(&obd->obd_self_export->exp_lock);
745 /* note that we'll recurse into class_decref again */
746 class_unlink_export(obd->obd_self_export);
751 CDEBUG(D_CONFIG, "finishing cleanup of obd %s (%s)\n",
752 obd->obd_name, obd->obd_uuid.uuid);
753 LASSERT(!obd->obd_attached);
754 if (obd->obd_stopping) {
755 /* If we're not stopping, we were never set up */
756 err = obd_cleanup(obd);
758 CERROR("Cleanup %s returned %d\n",
761 if (OBP(obd, detach)) {
762 err = OBP(obd, detach)(obd);
764 CERROR("Detach returned %d\n", err);
766 class_release_dev(obd);
769 EXPORT_SYMBOL(class_decref);
771 /** Add a failover nid location.
772 * Client obd types contact server obd types using this nid list.
774 int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg)
776 struct obd_import *imp;
777 struct obd_uuid uuid;
781 if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1 ||
782 LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(struct obd_uuid)) {
783 CERROR("invalid conn_uuid\n");
786 if (strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) &&
787 strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME) &&
788 strcmp(obd->obd_type->typ_name, LUSTRE_OSP_NAME) &&
789 strcmp(obd->obd_type->typ_name, LUSTRE_LWP_NAME) &&
790 strcmp(obd->obd_type->typ_name, LUSTRE_MGC_NAME)) {
791 CERROR("can't add connection on non-client dev\n");
795 imp = obd->u.cli.cl_import;
797 CERROR("try to add conn on immature client dev\n");
801 obd_str2uuid(&uuid, lustre_cfg_string(lcfg, 1));
802 rc = obd_add_conn(imp, &uuid, lcfg->lcfg_num);
806 EXPORT_SYMBOL(class_add_conn);
808 /** Remove a failover nid location.
810 int class_del_conn(struct obd_device *obd, struct lustre_cfg *lcfg)
812 struct obd_import *imp;
813 struct obd_uuid uuid;
817 if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1 ||
818 LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(struct obd_uuid)) {
819 CERROR("invalid conn_uuid\n");
822 if (strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) &&
823 strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME)) {
824 CERROR("can't del connection on non-client dev\n");
828 imp = obd->u.cli.cl_import;
830 CERROR("try to del conn on immature client dev\n");
834 obd_str2uuid(&uuid, lustre_cfg_string(lcfg, 1));
835 rc = obd_del_conn(imp, &uuid);
840 CFS_LIST_HEAD(lustre_profile_list);
842 struct lustre_profile *class_get_profile(const char * prof)
844 struct lustre_profile *lprof;
847 cfs_list_for_each_entry(lprof, &lustre_profile_list, lp_list) {
848 if (!strcmp(lprof->lp_profile, prof)) {
854 EXPORT_SYMBOL(class_get_profile);
856 /** Create a named "profile".
857 * This defines the mdc and osc names to use for a client.
858 * This also is used to define the lov to be used by a mdt.
860 int class_add_profile(int proflen, char *prof, int osclen, char *osc,
861 int mdclen, char *mdc)
863 struct lustre_profile *lprof;
867 CDEBUG(D_CONFIG, "Add profile %s\n", prof);
869 OBD_ALLOC(lprof, sizeof(*lprof));
872 CFS_INIT_LIST_HEAD(&lprof->lp_list);
874 LASSERT(proflen == (strlen(prof) + 1));
875 OBD_ALLOC(lprof->lp_profile, proflen);
876 if (lprof->lp_profile == NULL)
877 GOTO(out, err = -ENOMEM);
878 memcpy(lprof->lp_profile, prof, proflen);
880 LASSERT(osclen == (strlen(osc) + 1));
881 OBD_ALLOC(lprof->lp_dt, osclen);
882 if (lprof->lp_dt == NULL)
883 GOTO(out, err = -ENOMEM);
884 memcpy(lprof->lp_dt, osc, osclen);
887 LASSERT(mdclen == (strlen(mdc) + 1));
888 OBD_ALLOC(lprof->lp_md, mdclen);
889 if (lprof->lp_md == NULL)
890 GOTO(out, err = -ENOMEM);
891 memcpy(lprof->lp_md, mdc, mdclen);
894 cfs_list_add(&lprof->lp_list, &lustre_profile_list);
899 OBD_FREE(lprof->lp_md, mdclen);
901 OBD_FREE(lprof->lp_dt, osclen);
902 if (lprof->lp_profile)
903 OBD_FREE(lprof->lp_profile, proflen);
904 OBD_FREE(lprof, sizeof(*lprof));
908 void class_del_profile(const char *prof)
910 struct lustre_profile *lprof;
913 CDEBUG(D_CONFIG, "Del profile %s\n", prof);
915 lprof = class_get_profile(prof);
917 cfs_list_del(&lprof->lp_list);
918 OBD_FREE(lprof->lp_profile, strlen(lprof->lp_profile) + 1);
919 OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1);
921 OBD_FREE(lprof->lp_md, strlen(lprof->lp_md) + 1);
922 OBD_FREE(lprof, sizeof *lprof);
926 EXPORT_SYMBOL(class_del_profile);
929 void class_del_profiles(void)
931 struct lustre_profile *lprof, *n;
934 cfs_list_for_each_entry_safe(lprof, n, &lustre_profile_list, lp_list) {
935 cfs_list_del(&lprof->lp_list);
936 OBD_FREE(lprof->lp_profile, strlen(lprof->lp_profile) + 1);
937 OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1);
939 OBD_FREE(lprof->lp_md, strlen(lprof->lp_md) + 1);
940 OBD_FREE(lprof, sizeof *lprof);
944 EXPORT_SYMBOL(class_del_profiles);
946 static int class_set_global(char *ptr, int val, struct lustre_cfg *lcfg)
949 if (class_match_param(ptr, PARAM_AT_MIN, NULL) == 0)
951 else if (class_match_param(ptr, PARAM_AT_MAX, NULL) == 0)
953 else if (class_match_param(ptr, PARAM_AT_EXTRA, NULL) == 0)
955 else if (class_match_param(ptr, PARAM_AT_EARLY_MARGIN, NULL) == 0)
956 at_early_margin = val;
957 else if (class_match_param(ptr, PARAM_AT_HISTORY, NULL) == 0)
959 else if (class_match_param(ptr, PARAM_JOBID_VAR, NULL) == 0)
960 strlcpy(obd_jobid_var, lustre_cfg_string(lcfg, 2),
961 JOBSTATS_JOBID_VAR_MAX_LEN + 1);
965 CDEBUG(D_IOCTL, "global %s = %d\n", ptr, val);
970 /* We can't call ll_process_config or lquota_process_config directly because
971 * it lives in a module that must be loaded after this one. */
972 static int (*client_process_config)(struct lustre_cfg *lcfg) = NULL;
973 static int (*quota_process_config)(struct lustre_cfg *lcfg) = NULL;
975 void lustre_register_client_process_config(int (*cpc)(struct lustre_cfg *lcfg))
977 client_process_config = cpc;
979 EXPORT_SYMBOL(lustre_register_client_process_config);
982 * Rename the proc parameter in \a cfg with a new name \a new_name.
984 * \param cfg config structure which contains the proc parameter
985 * \param new_name new name of the proc parameter
987 * \retval valid-pointer pointer to the newly-allocated config structure
988 * which contains the renamed proc parameter
989 * \retval ERR_PTR(-EINVAL) if \a cfg or \a new_name is NULL, or \a cfg does
990 * not contain a proc parameter
991 * \retval ERR_PTR(-ENOMEM) if memory allocation failure occurs
993 struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg,
994 const char *new_name)
996 struct lustre_cfg_bufs *bufs = NULL;
997 struct lustre_cfg *new_cfg = NULL;
999 char *new_param = NULL;
1005 if (cfg == NULL || new_name == NULL)
1006 RETURN(ERR_PTR(-EINVAL));
1008 param = lustre_cfg_string(cfg, 1);
1010 RETURN(ERR_PTR(-EINVAL));
1012 value = strchr(param, '=');
1014 name_len = strlen(param);
1016 name_len = value - param;
1018 new_len = LUSTRE_CFG_BUFLEN(cfg, 1) + strlen(new_name) - name_len;
1020 OBD_ALLOC(new_param, new_len);
1021 if (new_param == NULL)
1022 RETURN(ERR_PTR(-ENOMEM));
1024 strcpy(new_param, new_name);
1026 strcat(new_param, value);
1028 OBD_ALLOC_PTR(bufs);
1030 OBD_FREE(new_param, new_len);
1031 RETURN(ERR_PTR(-ENOMEM));
1034 lustre_cfg_bufs_reset(bufs, NULL);
1035 lustre_cfg_bufs_init(bufs, cfg);
1036 lustre_cfg_bufs_set_string(bufs, 1, new_param);
1038 new_cfg = lustre_cfg_new(cfg->lcfg_command, bufs);
1040 OBD_FREE(new_param, new_len);
1042 if (new_cfg == NULL)
1043 RETURN(ERR_PTR(-ENOMEM));
1045 new_cfg->lcfg_num = cfg->lcfg_num;
1046 new_cfg->lcfg_flags = cfg->lcfg_flags;
1047 new_cfg->lcfg_nid = cfg->lcfg_nid;
1048 new_cfg->lcfg_nal = cfg->lcfg_nal;
1052 EXPORT_SYMBOL(lustre_cfg_rename);
1054 static int process_param2_config(struct lustre_cfg *lcfg)
1056 char *param = lustre_cfg_string(lcfg, 1);
1057 char *upcall = lustre_cfg_string(lcfg, 2);
1059 [0] = "/usr/sbin/lctl",
1064 struct timeval start;
1069 /* Add upcall processing here. Now only lctl is supported */
1070 if (strcmp(upcall, LCTL_UPCALL) != 0) {
1071 CERROR("Unsupported upcall %s\n", upcall);
1075 do_gettimeofday(&start);
1076 rc = call_usermodehelper(argv[0], argv, NULL, 0);
1077 do_gettimeofday(&end);
1080 CERROR("lctl: error invoking upcall %s %s %s: rc = %d; "
1081 "time %ldus\n", argv[0], argv[1], argv[2], rc,
1082 cfs_timeval_sub(&end, &start, NULL));
1084 CDEBUG(D_HA, "lctl: invoked upcall %s %s %s, time %ldus\n",
1085 argv[0], argv[1], argv[2],
1086 cfs_timeval_sub(&end, &start, NULL));
1093 void lustre_register_quota_process_config(int (*qpc)(struct lustre_cfg *lcfg))
1095 quota_process_config = qpc;
1097 EXPORT_SYMBOL(lustre_register_quota_process_config);
1099 /** Process configuration commands given in lustre_cfg form.
1100 * These may come from direct calls (e.g. class_manual_cleanup)
1101 * or processing the config llog, or ioctl from lctl.
1103 int class_process_config(struct lustre_cfg *lcfg)
1105 struct obd_device *obd;
1108 LASSERT(lcfg && !IS_ERR(lcfg));
1109 CDEBUG(D_IOCTL, "processing cmd: %x\n", lcfg->lcfg_command);
1111 /* Commands that don't need a device */
1112 switch(lcfg->lcfg_command) {
1114 err = class_attach(lcfg);
1117 case LCFG_ADD_UUID: {
1118 CDEBUG(D_IOCTL, "adding mapping from uuid %s to nid "LPX64
1119 " (%s)\n", lustre_cfg_string(lcfg, 1),
1120 lcfg->lcfg_nid, libcfs_nid2str(lcfg->lcfg_nid));
1122 err = class_add_uuid(lustre_cfg_string(lcfg, 1), lcfg->lcfg_nid);
1125 case LCFG_DEL_UUID: {
1126 CDEBUG(D_IOCTL, "removing mappings for uuid %s\n",
1127 (lcfg->lcfg_bufcount < 2 || LUSTRE_CFG_BUFLEN(lcfg, 1) == 0)
1128 ? "<all uuids>" : lustre_cfg_string(lcfg, 1));
1130 err = class_del_uuid(lustre_cfg_string(lcfg, 1));
1133 case LCFG_MOUNTOPT: {
1134 CDEBUG(D_IOCTL, "mountopt: profile %s osc %s mdc %s\n",
1135 lustre_cfg_string(lcfg, 1),
1136 lustre_cfg_string(lcfg, 2),
1137 lustre_cfg_string(lcfg, 3));
1138 /* set these mount options somewhere, so ll_fill_super
1140 err = class_add_profile(LUSTRE_CFG_BUFLEN(lcfg, 1),
1141 lustre_cfg_string(lcfg, 1),
1142 LUSTRE_CFG_BUFLEN(lcfg, 2),
1143 lustre_cfg_string(lcfg, 2),
1144 LUSTRE_CFG_BUFLEN(lcfg, 3),
1145 lustre_cfg_string(lcfg, 3));
1148 case LCFG_DEL_MOUNTOPT: {
1149 CDEBUG(D_IOCTL, "mountopt: profile %s\n",
1150 lustre_cfg_string(lcfg, 1));
1151 class_del_profile(lustre_cfg_string(lcfg, 1));
1154 case LCFG_SET_TIMEOUT: {
1155 CDEBUG(D_IOCTL, "changing lustre timeout from %d to %d\n",
1156 obd_timeout, lcfg->lcfg_num);
1157 obd_timeout = max(lcfg->lcfg_num, 1U);
1158 obd_timeout_set = 1;
1161 case LCFG_SET_LDLM_TIMEOUT: {
1162 CDEBUG(D_IOCTL, "changing lustre ldlm_timeout from %d to %d\n",
1163 ldlm_timeout, lcfg->lcfg_num);
1164 ldlm_timeout = max(lcfg->lcfg_num, 1U);
1165 if (ldlm_timeout >= obd_timeout)
1166 ldlm_timeout = max(obd_timeout / 3, 1U);
1167 ldlm_timeout_set = 1;
1170 case LCFG_SET_UPCALL: {
1171 LCONSOLE_ERROR_MSG(0x15a, "recovery upcall is deprecated\n");
1172 /* COMPAT_146 Don't fail on old configs */
1176 struct cfg_marker *marker;
1177 marker = lustre_cfg_buf(lcfg, 1);
1178 CDEBUG(D_IOCTL, "marker %d (%#x) %.16s %s\n", marker->cm_step,
1179 marker->cm_flags, marker->cm_tgtname, marker->cm_comment);
1184 /* llite has no obd */
1185 if ((class_match_param(lustre_cfg_string(lcfg, 1),
1186 PARAM_LLITE, 0) == 0) &&
1187 client_process_config) {
1188 err = (*client_process_config)(lcfg);
1190 } else if ((class_match_param(lustre_cfg_string(lcfg, 1),
1191 PARAM_SYS, &tmp) == 0)) {
1192 /* Global param settings */
1193 err = class_set_global(tmp, lcfg->lcfg_num, lcfg);
1195 * Client or server should not fail to mount if
1196 * it hits an unknown configuration parameter.
1199 CWARN("Ignoring unknown param %s\n", tmp);
1202 } else if ((class_match_param(lustre_cfg_string(lcfg, 1),
1203 PARAM_QUOTA, &tmp) == 0) &&
1204 quota_process_config) {
1205 err = (*quota_process_config)(lcfg);
1211 case LCFG_SET_PARAM: {
1212 err = process_param2_config(lcfg);
1216 /* Commands that require a device */
1217 obd = class_name2obd(lustre_cfg_string(lcfg, 0));
1219 if (!LUSTRE_CFG_BUFLEN(lcfg, 0))
1220 CERROR("this lcfg command requires a device name\n");
1222 CERROR("no device for: %s\n",
1223 lustre_cfg_string(lcfg, 0));
1225 GOTO(out, err = -EINVAL);
1228 switch(lcfg->lcfg_command) {
1230 err = class_setup(obd, lcfg);
1234 err = class_detach(obd, lcfg);
1237 case LCFG_CLEANUP: {
1238 err = class_cleanup(obd, lcfg);
1241 case LCFG_ADD_CONN: {
1242 err = class_add_conn(obd, lcfg);
1245 case LCFG_DEL_CONN: {
1246 err = class_del_conn(obd, lcfg);
1249 case LCFG_POOL_NEW: {
1250 err = obd_pool_new(obd, lustre_cfg_string(lcfg, 2));
1253 case LCFG_POOL_ADD: {
1254 err = obd_pool_add(obd, lustre_cfg_string(lcfg, 2),
1255 lustre_cfg_string(lcfg, 3));
1258 case LCFG_POOL_REM: {
1259 err = obd_pool_rem(obd, lustre_cfg_string(lcfg, 2),
1260 lustre_cfg_string(lcfg, 3));
1263 case LCFG_POOL_DEL: {
1264 err = obd_pool_del(obd, lustre_cfg_string(lcfg, 2));
1268 err = obd_process_config(obd, sizeof(*lcfg), lcfg);
1274 if ((err < 0) && !(lcfg->lcfg_command & LCFG_REQUIRED)) {
1275 CWARN("Ignoring error %d on optional command %#x\n", err,
1276 lcfg->lcfg_command);
1281 EXPORT_SYMBOL(class_process_config);
1283 #ifndef HAVE_ONLY_PROCFS_SEQ
1284 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
1285 struct lustre_cfg *lcfg, void *data)
1288 struct lprocfs_vars *var;
1290 int i, keylen, vallen;
1291 int matched = 0, j = 0;
1296 if (lcfg->lcfg_command != LCFG_PARAM) {
1297 CERROR("Unknown command: %d\n", lcfg->lcfg_command);
1301 /* e.g. tunefs.lustre --param mdt.group_upcall=foo /r/tmp/lustre-mdt
1302 or lctl conf_param lustre-MDT0000.mdt.group_upcall=bar
1303 or lctl conf_param lustre-OST0000.osc.max_dirty_mb=36 */
1304 for (i = 1; i < lcfg->lcfg_bufcount; i++) {
1305 key = lustre_cfg_buf(lcfg, i);
1306 /* Strip off prefix */
1307 if (class_match_param(key, prefix, &key))
1308 /* If the prefix doesn't match, return error so we
1309 * can pass it down the stack */
1311 sval = strchr(key, '=');
1312 if (!sval || (*(sval + 1) == 0)) {
1313 CERROR("Can't parse param %s (missing '=')\n", key);
1314 /* rc = -EINVAL; continue parsing other params */
1317 keylen = sval - key;
1319 vallen = strlen(sval);
1322 /* Search proc entries */
1323 while (lvars[j].name) {
1325 if (class_match_param(key, (char *)var->name, 0) == 0 &&
1326 keylen == strlen(var->name)) {
1330 if (var->write_fptr) {
1334 rc = (var->write_fptr)(NULL, sval,
1343 CERROR("%.*s: %s unknown param %s\n",
1344 (int)strlen(prefix) - 1, prefix,
1345 (char *)lustre_cfg_string(lcfg, 0), key);
1346 /* rc = -EINVAL; continue parsing other params */
1348 } else if (rc < 0) {
1349 CERROR("%s: error writing proc entry '%s': rc = %d\n",
1350 prefix, var->name, rc);
1353 CDEBUG(D_CONFIG, "%s.%.*s: Set parameter %.*s=%s\n",
1354 lustre_cfg_string(lcfg, 0),
1355 (int)strlen(prefix) - 1, prefix,
1356 (int)(sval - key - 1), key, sval);
1366 CDEBUG(D_CONFIG, "liblustre can't process params.\n");
1367 /* Don't throw config error */
1371 EXPORT_SYMBOL(class_process_proc_param);
1374 int class_process_proc_seq_param(char *prefix, struct lprocfs_seq_vars *lvars,
1375 struct lustre_cfg *lcfg, void *data)
1378 struct lprocfs_seq_vars *var;
1379 struct file fakefile;
1380 struct seq_file fake_seqfile;
1382 int i, keylen, vallen;
1383 int matched = 0, j = 0;
1388 if (lcfg->lcfg_command != LCFG_PARAM) {
1389 CERROR("Unknown command: %d\n", lcfg->lcfg_command);
1393 /* fake a seq file so that var->fops->write can work... */
1394 fakefile.private_data = &fake_seqfile;
1395 fake_seqfile.private = data;
1396 /* e.g. tunefs.lustre --param mdt.group_upcall=foo /r/tmp/lustre-mdt
1397 or lctl conf_param lustre-MDT0000.mdt.group_upcall=bar
1398 or lctl conf_param lustre-OST0000.osc.max_dirty_mb=36 */
1399 for (i = 1; i < lcfg->lcfg_bufcount; i++) {
1400 key = lustre_cfg_buf(lcfg, i);
1401 /* Strip off prefix */
1402 if (class_match_param(key, prefix, &key))
1403 /* If the prefix doesn't match, return error so we
1404 * can pass it down the stack */
1406 sval = strchr(key, '=');
1407 if (!sval || (*(sval + 1) == 0)) {
1408 CERROR("Can't parse param %s (missing '=')\n", key);
1409 /* rc = -EINVAL; continue parsing other params */
1412 keylen = sval - key;
1414 vallen = strlen(sval);
1417 /* Search proc entries */
1418 while (lvars[j].name) {
1420 if (class_match_param(key, (char *)var->name, 0) == 0 &&
1421 keylen == strlen(var->name)) {
1425 if (var->fops && var->fops->write) {
1429 rc = (var->fops->write)(&fakefile, sval,
1438 CERROR("%.*s: %s unknown param %s\n",
1439 (int)strlen(prefix) - 1, prefix,
1440 (char *)lustre_cfg_string(lcfg, 0), key);
1441 /* rc = -EINVAL; continue parsing other params */
1443 } else if (rc < 0) {
1444 CERROR("%s: error writing proc entry '%s': rc = %d\n",
1445 prefix, var->name, rc);
1448 CDEBUG(D_CONFIG, "%s.%.*s: Set parameter %.*s=%s\n",
1449 lustre_cfg_string(lcfg, 0),
1450 (int)strlen(prefix) - 1, prefix,
1451 (int)(sval - key - 1), key, sval);
1461 CDEBUG(D_CONFIG, "liblustre can't process params.\n");
1462 /* Don't throw config error */
1466 EXPORT_SYMBOL(class_process_proc_seq_param);
1469 extern int lustre_check_exclusion(struct super_block *sb, char *svname);
1471 #define lustre_check_exclusion(a,b) 0
1474 /** Parse a configuration llog, doing various manipulations on them
1475 * for various reasons, (modifications for compatibility, skip obsolete
1476 * records, change uuids, etc), then class_process_config() resulting
1479 int class_config_llog_handler(const struct lu_env *env,
1480 struct llog_handle *handle,
1481 struct llog_rec_hdr *rec, void *data)
1483 struct config_llog_instance *clli = data;
1484 int cfg_len = rec->lrh_len;
1485 char *cfg_buf = (char*) (rec + 1);
1489 //class_config_dump_handler(handle, rec, data);
1491 switch (rec->lrh_type) {
1493 struct lustre_cfg *lcfg, *lcfg_new;
1494 struct lustre_cfg_bufs bufs;
1495 char *inst_name = NULL;
1497 int inst = 0, swab = 0;
1499 lcfg = (struct lustre_cfg *)cfg_buf;
1500 if (lcfg->lcfg_version == __swab32(LUSTRE_CFG_VERSION)) {
1501 lustre_swab_lustre_cfg(lcfg);
1505 rc = lustre_cfg_sanity_check(cfg_buf, cfg_len);
1509 /* Figure out config state info */
1510 if (lcfg->lcfg_command == LCFG_MARKER) {
1511 struct cfg_marker *marker = lustre_cfg_buf(lcfg, 1);
1512 lustre_swab_cfg_marker(marker, swab,
1513 LUSTRE_CFG_BUFLEN(lcfg, 1));
1514 CDEBUG(D_CONFIG, "Marker, inst_flg=%#x mark_flg=%#x\n",
1515 clli->cfg_flags, marker->cm_flags);
1516 if (marker->cm_flags & CM_START) {
1517 /* all previous flags off */
1518 clli->cfg_flags = CFG_F_MARKER;
1519 server_name2index(marker->cm_tgtname,
1520 &clli->cfg_lwp_idx, NULL);
1521 if (marker->cm_flags & CM_SKIP) {
1522 clli->cfg_flags |= CFG_F_SKIP;
1523 CDEBUG(D_CONFIG, "SKIP #%d\n",
1525 } else if ((marker->cm_flags & CM_EXCLUDE) ||
1527 lustre_check_exclusion(clli->cfg_sb,
1528 marker->cm_tgtname))) {
1529 clli->cfg_flags |= CFG_F_EXCLUDE;
1530 CDEBUG(D_CONFIG, "EXCLUDE %d\n",
1533 } else if (marker->cm_flags & CM_END) {
1534 clli->cfg_flags = 0;
1537 /* A config command without a start marker before it is
1538 illegal (post 146) */
1539 if (!(clli->cfg_flags & CFG_F_COMPAT146) &&
1540 !(clli->cfg_flags & CFG_F_MARKER) &&
1541 (lcfg->lcfg_command != LCFG_MARKER)) {
1542 CWARN("Config not inside markers, ignoring! "
1543 "(inst: %p, uuid: %s, flags: %#x)\n",
1545 clli->cfg_uuid.uuid, clli->cfg_flags);
1546 clli->cfg_flags |= CFG_F_SKIP;
1548 if (clli->cfg_flags & CFG_F_SKIP) {
1549 CDEBUG(D_CONFIG, "skipping %#x\n",
1552 /* No processing! */
1557 * For interoperability between 1.8 and 2.0,
1558 * rename "mds" obd device type to "mdt".
1561 char *typename = lustre_cfg_string(lcfg, 1);
1562 char *index = lustre_cfg_string(lcfg, 2);
1564 if ((lcfg->lcfg_command == LCFG_ATTACH && typename &&
1565 strcmp(typename, "mds") == 0)) {
1566 CWARN("For 1.8 interoperability, rename obd "
1567 "type from mds to mdt\n");
1570 if ((lcfg->lcfg_command == LCFG_SETUP && index &&
1571 strcmp(index, "type") == 0)) {
1572 CDEBUG(D_INFO, "For 1.8 interoperability, "
1573 "set this index to '0'\n");
1579 #if defined(HAVE_SERVER_SUPPORT) && defined(__KERNEL__)
1580 /* newer MDS replaces LOV/OSC with LOD/OSP */
1582 char *typename = lustre_cfg_string(lcfg, 1);
1584 if ((lcfg->lcfg_command == LCFG_ATTACH && typename &&
1585 strcmp(typename, LUSTRE_LOV_NAME) == 0) &&
1586 IS_MDT(s2lsi(clli->cfg_sb))) {
1588 "For 2.x interoperability, rename obd "
1589 "type from lov to lod (%s)\n",
1590 s2lsi(clli->cfg_sb)->lsi_svname);
1591 strcpy(typename, LUSTRE_LOD_NAME);
1593 if ((lcfg->lcfg_command == LCFG_ATTACH && typename &&
1594 strcmp(typename, LUSTRE_OSC_NAME) == 0) &&
1595 IS_MDT(s2lsi(clli->cfg_sb))) {
1597 "For 2.x interoperability, rename obd "
1598 "type from osc to osp (%s)\n",
1599 s2lsi(clli->cfg_sb)->lsi_svname);
1600 strcpy(typename, LUSTRE_OSP_NAME);
1605 if (clli->cfg_flags & CFG_F_EXCLUDE) {
1606 CDEBUG(D_CONFIG, "cmd: %x marked EXCLUDED\n",
1607 lcfg->lcfg_command);
1608 if (lcfg->lcfg_command == LCFG_LOV_ADD_OBD)
1609 /* Add inactive instead */
1610 lcfg->lcfg_command = LCFG_LOV_ADD_INA;
1613 lustre_cfg_bufs_init(&bufs, lcfg);
1615 if (clli && clli->cfg_instance &&
1616 LUSTRE_CFG_BUFLEN(lcfg, 0) > 0){
1618 inst_len = LUSTRE_CFG_BUFLEN(lcfg, 0) +
1619 sizeof(clli->cfg_instance) * 2 + 4;
1620 OBD_ALLOC(inst_name, inst_len);
1621 if (inst_name == NULL)
1622 GOTO(out, rc = -ENOMEM);
1623 sprintf(inst_name, "%s-%p",
1624 lustre_cfg_string(lcfg, 0),
1625 clli->cfg_instance);
1626 lustre_cfg_bufs_set_string(&bufs, 0, inst_name);
1627 CDEBUG(D_CONFIG, "cmd %x, instance name: %s\n",
1628 lcfg->lcfg_command, inst_name);
1631 /* we override the llog's uuid for clients, to insure they
1633 if (clli && clli->cfg_instance != NULL &&
1634 lcfg->lcfg_command == LCFG_ATTACH) {
1635 lustre_cfg_bufs_set_string(&bufs, 2,
1636 clli->cfg_uuid.uuid);
1639 * sptlrpc config record, we expect 2 data segments:
1640 * [0]: fs_name/target_name,
1642 * moving them to index [1] and [2], and insert MGC's
1643 * obdname at index [0].
1645 if (clli && clli->cfg_instance == NULL &&
1646 lcfg->lcfg_command == LCFG_SPTLRPC_CONF) {
1647 lustre_cfg_bufs_set(&bufs, 2, bufs.lcfg_buf[1],
1648 bufs.lcfg_buflen[1]);
1649 lustre_cfg_bufs_set(&bufs, 1, bufs.lcfg_buf[0],
1650 bufs.lcfg_buflen[0]);
1651 lustre_cfg_bufs_set_string(&bufs, 0,
1655 lcfg_new = lustre_cfg_new(lcfg->lcfg_command, &bufs);
1657 lcfg_new->lcfg_num = lcfg->lcfg_num;
1658 lcfg_new->lcfg_flags = lcfg->lcfg_flags;
1660 /* XXX Hack to try to remain binary compatible with
1661 * pre-newconfig logs */
1662 if (lcfg->lcfg_nal != 0 && /* pre-newconfig log? */
1663 (lcfg->lcfg_nid >> 32) == 0) {
1664 __u32 addr = (__u32)(lcfg->lcfg_nid & 0xffffffff);
1666 lcfg_new->lcfg_nid =
1667 LNET_MKNID(LNET_MKNET(lcfg->lcfg_nal, 0), addr);
1668 CWARN("Converted pre-newconfig NAL %d NID %x to %s\n",
1669 lcfg->lcfg_nal, addr,
1670 libcfs_nid2str(lcfg_new->lcfg_nid));
1672 lcfg_new->lcfg_nid = lcfg->lcfg_nid;
1675 lcfg_new->lcfg_nal = 0; /* illegal value for obsolete field */
1677 rc = class_process_config(lcfg_new);
1678 lustre_cfg_free(lcfg_new);
1681 OBD_FREE(inst_name, inst_len);
1685 CERROR("Unknown llog record type %#x encountered\n",
1691 CERROR("%s: cfg command failed: rc = %d\n",
1692 handle->lgh_ctxt->loc_obd->obd_name, rc);
1693 class_config_dump_handler(NULL, handle, rec, data);
1697 EXPORT_SYMBOL(class_config_llog_handler);
1699 int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
1700 char *name, struct config_llog_instance *cfg)
1702 struct llog_process_cat_data cd = {0, 0};
1703 struct llog_handle *llh;
1708 CDEBUG(D_INFO, "looking up llog %s\n", name);
1709 rc = llog_open(env, ctxt, &llh, NULL, name, LLOG_OPEN_EXISTS);
1713 rc = llog_init_handle(env, llh, LLOG_F_IS_PLAIN, NULL);
1715 GOTO(parse_out, rc);
1717 /* continue processing from where we last stopped to end-of-log */
1719 cd.lpcd_first_idx = cfg->cfg_last_idx;
1720 callback = cfg->cfg_callback;
1721 LASSERT(callback != NULL);
1723 callback = class_config_llog_handler;
1726 cd.lpcd_last_idx = 0;
1728 rc = llog_process(env, llh, callback, cfg, &cd);
1730 CDEBUG(D_CONFIG, "Processed log %s gen %d-%d (rc=%d)\n", name,
1731 cd.lpcd_first_idx + 1, cd.lpcd_last_idx, rc);
1733 cfg->cfg_last_idx = cd.lpcd_last_idx;
1736 llog_close(env, llh);
1739 EXPORT_SYMBOL(class_config_parse_llog);
1741 struct lcfg_type_data {
1745 } lcfg_data_table[] = {
1746 { LCFG_ATTACH, "attach", { "type", "UUID", "3", "4" } },
1747 { LCFG_DETACH, "detach", { "1", "2", "3", "4" } },
1748 { LCFG_SETUP, "setup", { "UUID", "node", "options", "failout" } },
1749 { LCFG_CLEANUP, "cleanup", { "1", "2", "3", "4" } },
1750 { LCFG_ADD_UUID, "add_uuid", { "node", "2", "3", "4" } },
1751 { LCFG_DEL_UUID, "del_uuid", { "1", "2", "3", "4" } },
1752 { LCFG_MOUNTOPT, "new_profile", { "name", "lov", "lmv", "4" } },
1753 { LCFG_DEL_MOUNTOPT, "del_mountopt", { "1", "2", "3", "4" } , },
1754 { LCFG_SET_TIMEOUT, "set_timeout", { "parameter", "2", "3", "4" } },
1755 { LCFG_SET_UPCALL, "set_upcall", { "1", "2", "3", "4" } },
1756 { LCFG_ADD_CONN, "add_conn", { "node", "2", "3", "4" } },
1757 { LCFG_DEL_CONN, "del_conn", { "1", "2", "3", "4" } },
1758 { LCFG_LOV_ADD_OBD, "add_osc", { "ost", "index", "gen", "UUID" } },
1759 { LCFG_LOV_DEL_OBD, "del_osc", { "1", "2", "3", "4" } },
1760 { LCFG_PARAM, "set_param", { "parameter", "value", "3", "4" } },
1761 { LCFG_MARKER, "marker", { "1", "2", "3", "4" } },
1762 { LCFG_LOG_START, "log_start", { "1", "2", "3", "4" } },
1763 { LCFG_LOG_END, "log_end", { "1", "2", "3", "4" } },
1764 { LCFG_LOV_ADD_INA, "add_osc_inactive", { "1", "2", "3", "4" } },
1765 { LCFG_ADD_MDC, "add_mdc", { "mdt", "index", "gen", "UUID" } },
1766 { LCFG_DEL_MDC, "del_mdc", { "1", "2", "3", "4" } },
1767 { LCFG_SPTLRPC_CONF, "security", { "parameter", "2", "3", "4" } },
1768 { LCFG_POOL_NEW, "new_pool", { "fsname", "pool", "3", "4" } },
1769 { LCFG_POOL_ADD, "add_pool", { "fsname", "pool", "ost", "4" } },
1770 { LCFG_POOL_REM, "remove_pool", { "fsname", "pool", "ost", "4" } },
1771 { LCFG_POOL_DEL, "del_pool", { "fsname", "pool", "3", "4" } },
1772 { LCFG_SET_LDLM_TIMEOUT, "set_ldlm_timeout",
1773 { "parameter", "2", "3", "4" } },
1774 { 0, NULL, { NULL, NULL, NULL, NULL } }
1777 static struct lcfg_type_data *lcfg_cmd2data(__u32 cmd)
1781 while (lcfg_data_table[i].ltd_type != 0) {
1782 if (lcfg_data_table[i].ltd_type == cmd)
1783 return &lcfg_data_table[i];
1790 * parse config record and output dump in supplied buffer.
1791 * This is separated from class_config_dump_handler() to use
1792 * for ioctl needs as well
1795 * - { event: attach, device: lustrewt-clilov, type: lov, UUID:
1796 * lustrewt-clilov_UUID }
1798 int class_config_yaml_output(struct llog_rec_hdr *rec, char *buf, int size)
1800 struct lustre_cfg *lcfg = (struct lustre_cfg *)(rec + 1);
1802 char *end = buf + size;
1804 struct lcfg_type_data *ldata;
1806 LASSERT(rec->lrh_type == OBD_CFG_REC);
1807 rc = lustre_cfg_sanity_check(lcfg, rec->lrh_len);
1811 ldata = lcfg_cmd2data(lcfg->lcfg_command);
1815 if (lcfg->lcfg_command == LCFG_MARKER)
1818 /* form YAML entity */
1819 ptr += snprintf(ptr, end - ptr, "- { event: %s", ldata->ltd_name);
1821 if (lcfg->lcfg_flags)
1822 ptr += snprintf(ptr, end - ptr, ", flags: %#08x",
1825 ptr += snprintf(ptr, end - ptr, ", num: %#08x",
1828 ptr += snprintf(ptr, end - ptr, ", nid: %s("LPX64")",
1829 libcfs_nid2str(lcfg->lcfg_nid),
1832 if (LUSTRE_CFG_BUFLEN(lcfg, 0) > 0)
1833 ptr += snprintf(ptr, end - ptr, ", device: %s",
1834 lustre_cfg_string(lcfg, 0));
1836 for (i = 1; i < lcfg->lcfg_bufcount; i++) {
1837 if (LUSTRE_CFG_BUFLEN(lcfg, i) > 0)
1838 ptr += snprintf(ptr, end - ptr, ", %s: %s",
1839 ldata->ltd_bufs[i - 1],
1840 lustre_cfg_string(lcfg, i));
1843 ptr += snprintf(ptr, end - ptr, " }\n");
1844 /* return consumed bytes */
1850 * parse config record and output dump in supplied buffer.
1851 * This is separated from class_config_dump_handler() to use
1852 * for ioctl needs as well
1854 int class_config_parse_rec(struct llog_rec_hdr *rec, char *buf, int size)
1856 struct lustre_cfg *lcfg = (struct lustre_cfg *)(rec + 1);
1858 char *end = buf + size;
1863 LASSERT(rec->lrh_type == OBD_CFG_REC);
1864 rc = lustre_cfg_sanity_check(lcfg, rec->lrh_len);
1868 ptr += snprintf(ptr, end-ptr, "cmd=%05x ", lcfg->lcfg_command);
1869 if (lcfg->lcfg_flags)
1870 ptr += snprintf(ptr, end-ptr, "flags=%#08x ",
1874 ptr += snprintf(ptr, end-ptr, "num=%#08x ", lcfg->lcfg_num);
1877 ptr += snprintf(ptr, end-ptr, "nid=%s("LPX64")\n ",
1878 libcfs_nid2str(lcfg->lcfg_nid),
1881 if (lcfg->lcfg_command == LCFG_MARKER) {
1882 struct cfg_marker *marker = lustre_cfg_buf(lcfg, 1);
1884 ptr += snprintf(ptr, end-ptr, "marker=%d(%#x)%s '%s'",
1885 marker->cm_step, marker->cm_flags,
1886 marker->cm_tgtname, marker->cm_comment);
1890 for (i = 0; i < lcfg->lcfg_bufcount; i++) {
1891 ptr += snprintf(ptr, end-ptr, "%d:%s ", i,
1892 lustre_cfg_string(lcfg, i));
1895 ptr += snprintf(ptr, end - ptr, "\n");
1896 /* return consumed bytes */
1901 int class_config_dump_handler(const struct lu_env *env,
1902 struct llog_handle *handle,
1903 struct llog_rec_hdr *rec, void *data)
1910 OBD_ALLOC(outstr, 256);
1914 if (rec->lrh_type == OBD_CFG_REC) {
1915 class_config_parse_rec(rec, outstr, 256);
1916 LCONSOLE(D_WARNING, " %s", outstr);
1918 LCONSOLE(D_WARNING, "unhandled lrh_type: %#x\n", rec->lrh_type);
1922 OBD_FREE(outstr, 256);
1926 int class_config_dump_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
1927 char *name, struct config_llog_instance *cfg)
1929 struct llog_handle *llh;
1934 LCONSOLE_INFO("Dumping config log %s\n", name);
1936 rc = llog_open(env, ctxt, &llh, NULL, name, LLOG_OPEN_EXISTS);
1940 rc = llog_init_handle(env, llh, LLOG_F_IS_PLAIN, NULL);
1942 GOTO(parse_out, rc);
1944 rc = llog_process(env, llh, class_config_dump_handler, cfg, NULL);
1946 llog_close(env, llh);
1948 LCONSOLE_INFO("End config log %s\n", name);
1951 EXPORT_SYMBOL(class_config_dump_llog);
1953 /** Call class_cleanup and class_detach.
1954 * "Manual" only in the sense that we're faking lcfg commands.
1956 int class_manual_cleanup(struct obd_device *obd)
1959 struct lustre_cfg *lcfg;
1960 struct lustre_cfg_bufs bufs;
1965 CERROR("empty cleanup\n");
1974 CDEBUG(D_CONFIG, "Manual cleanup of %s (flags='%s')\n",
1975 obd->obd_name, flags);
1977 lustre_cfg_bufs_reset(&bufs, obd->obd_name);
1978 lustre_cfg_bufs_set_string(&bufs, 1, flags);
1979 lcfg = lustre_cfg_new(LCFG_CLEANUP, &bufs);
1983 rc = class_process_config(lcfg);
1985 CERROR("cleanup failed %d: %s\n", rc, obd->obd_name);
1989 /* the lcfg is almost the same for both ops */
1990 lcfg->lcfg_command = LCFG_DETACH;
1991 rc = class_process_config(lcfg);
1993 CERROR("detach failed %d: %s\n", rc, obd->obd_name);
1995 lustre_cfg_free(lcfg);
1998 EXPORT_SYMBOL(class_manual_cleanup);
2001 * uuid<->export lustre hash operations
2005 uuid_hash(cfs_hash_t *hs, const void *key, unsigned mask)
2007 return cfs_hash_djb2_hash(((struct obd_uuid *)key)->uuid,
2008 sizeof(((struct obd_uuid *)key)->uuid), mask);
2012 uuid_key(cfs_hlist_node_t *hnode)
2014 struct obd_export *exp;
2016 exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash);
2018 return &exp->exp_client_uuid;
2022 * NOTE: It is impossible to find an export that is in failed
2023 * state with this function
2026 uuid_keycmp(const void *key, cfs_hlist_node_t *hnode)
2028 struct obd_export *exp;
2031 exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash);
2033 return obd_uuid_equals(key, &exp->exp_client_uuid) &&
2038 uuid_export_object(cfs_hlist_node_t *hnode)
2040 return cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash);
2044 uuid_export_get(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
2046 struct obd_export *exp;
2048 exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash);
2049 class_export_get(exp);
2053 uuid_export_put_locked(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
2055 struct obd_export *exp;
2057 exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash);
2058 class_export_put(exp);
2061 static cfs_hash_ops_t uuid_hash_ops = {
2062 .hs_hash = uuid_hash,
2064 .hs_keycmp = uuid_keycmp,
2065 .hs_object = uuid_export_object,
2066 .hs_get = uuid_export_get,
2067 .hs_put_locked = uuid_export_put_locked,
2072 * nid<->export hash operations
2076 nid_hash(cfs_hash_t *hs, const void *key, unsigned mask)
2078 return cfs_hash_djb2_hash(key, sizeof(lnet_nid_t), mask);
2082 nid_key(cfs_hlist_node_t *hnode)
2084 struct obd_export *exp;
2086 exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash);
2088 RETURN(&exp->exp_connection->c_peer.nid);
2092 * NOTE: It is impossible to find an export that is in failed
2093 * state with this function
2096 nid_kepcmp(const void *key, cfs_hlist_node_t *hnode)
2098 struct obd_export *exp;
2101 exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash);
2103 RETURN(exp->exp_connection->c_peer.nid == *(lnet_nid_t *)key &&
2108 nid_export_object(cfs_hlist_node_t *hnode)
2110 return cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash);
2114 nid_export_get(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
2116 struct obd_export *exp;
2118 exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash);
2119 class_export_get(exp);
2123 nid_export_put_locked(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
2125 struct obd_export *exp;
2127 exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash);
2128 class_export_put(exp);
2131 static cfs_hash_ops_t nid_hash_ops = {
2132 .hs_hash = nid_hash,
2134 .hs_keycmp = nid_kepcmp,
2135 .hs_object = nid_export_object,
2136 .hs_get = nid_export_get,
2137 .hs_put_locked = nid_export_put_locked,
2142 * nid<->nidstats hash operations
2146 nidstats_key(cfs_hlist_node_t *hnode)
2148 struct nid_stat *ns;
2150 ns = cfs_hlist_entry(hnode, struct nid_stat, nid_hash);
2156 nidstats_keycmp(const void *key, cfs_hlist_node_t *hnode)
2158 return *(lnet_nid_t *)nidstats_key(hnode) == *(lnet_nid_t *)key;
2162 nidstats_object(cfs_hlist_node_t *hnode)
2164 return cfs_hlist_entry(hnode, struct nid_stat, nid_hash);
2168 nidstats_get(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
2170 struct nid_stat *ns;
2172 ns = cfs_hlist_entry(hnode, struct nid_stat, nid_hash);
2177 nidstats_put_locked(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
2179 struct nid_stat *ns;
2181 ns = cfs_hlist_entry(hnode, struct nid_stat, nid_hash);
2185 static cfs_hash_ops_t nid_stat_hash_ops = {
2186 .hs_hash = nid_hash,
2187 .hs_key = nidstats_key,
2188 .hs_keycmp = nidstats_keycmp,
2189 .hs_object = nidstats_object,
2190 .hs_get = nidstats_get,
2191 .hs_put_locked = nidstats_put_locked,