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_ioctl.h>
53 #include <lustre_log.h>
54 #include <lprocfs_status.h>
55 #include <lustre_param.h>
57 #include "llog_internal.h"
59 static cfs_hash_ops_t uuid_hash_ops;
60 static cfs_hash_ops_t nid_hash_ops;
61 static cfs_hash_ops_t nid_stat_hash_ops;
63 /*********** string parsing utils *********/
65 /* returns 0 if we find this key in the buffer, else 1 */
66 int class_find_param(char *buf, char *key, char **valp)
73 if ((ptr = strstr(buf, key)) == NULL)
77 *valp = ptr + strlen(key);
81 EXPORT_SYMBOL(class_find_param);
84 * Check whether the proc parameter \a param is an old parameter or not from
85 * the array \a ptr which contains the mapping from old parameters to new ones.
86 * If it's an old one, then return the pointer to the cfg_interop_param struc-
87 * ture which contains both the old and new parameters.
89 * \param param proc parameter
90 * \param ptr an array which contains the mapping from
91 * old parameters to new ones
93 * \retval valid-pointer pointer to the cfg_interop_param structure
94 * which contains the old and new parameters
95 * \retval NULL \a param or \a ptr is NULL,
96 * or \a param is not an old parameter
98 struct cfg_interop_param *class_find_old_param(const char *param,
99 struct cfg_interop_param *ptr)
104 if (param == NULL || ptr == NULL)
107 value = strchr(param, '=');
109 name_len = strlen(param);
111 name_len = value - param;
113 while (ptr->old_param != NULL) {
114 if (strncmp(param, ptr->old_param, name_len) == 0 &&
115 name_len == strlen(ptr->old_param))
122 EXPORT_SYMBOL(class_find_old_param);
125 * Finds a parameter in \a params and copies it to \a copy.
127 * Leading spaces are skipped. Next space or end of string is the
128 * parameter terminator with the exception that spaces inside single or double
129 * quotes get included into a parameter. The parameter is copied into \a copy
130 * which has to be allocated big enough by a caller, quotes are stripped in
131 * the copy and the copy is terminated by 0.
133 * On return \a params is set to next parameter or to NULL if last
134 * parameter is returned.
136 * \retval 0 if parameter is returned in \a copy
137 * \retval 1 otherwise
138 * \retval -EINVAL if unbalanced quota is found
140 int class_get_next_param(char **params, char *copy)
155 q1 = strpbrk(str, " '\"");
158 memcpy(copy, str, len);
165 memcpy(copy, str, len);
171 memcpy(copy, str, len);
174 /* search for the matching closing quote */
176 q2 = strchr(str, *q1);
178 CERROR("Unbalanced quota in parameters: \"%s\"\n",
183 memcpy(copy, str, len);
189 EXPORT_SYMBOL(class_get_next_param);
191 /* returns 0 if this is the first key in the buffer, else 1.
192 valp points to first char after key. */
193 int class_match_param(char *buf, char *key, char **valp)
198 if (memcmp(buf, key, strlen(key)) != 0)
202 *valp = buf + strlen(key);
206 EXPORT_SYMBOL(class_match_param);
208 static int parse_nid(char *buf, void *value, int quiet)
210 lnet_nid_t *nid = (lnet_nid_t *)value;
212 *nid = libcfs_str2nid(buf);
213 if (*nid != LNET_NID_ANY)
217 LCONSOLE_ERROR_MSG(0x159, "Can't parse NID '%s'\n", buf);
221 static int parse_net(char *buf, void *value)
223 __u32 *net = (__u32 *)value;
225 *net = libcfs_str2net(buf);
226 CDEBUG(D_INFO, "Net %s\n", libcfs_net2str(*net));
238 endh is set to next separator */
239 static int class_parse_value(char *buf, int opc, void *value, char **endh,
248 while (*buf == ',' || *buf == ':')
250 if (*buf == ' ' || *buf == '/' || *buf == '\0')
253 /* nid separators or end of nids */
254 endp = strpbrk(buf, ",: /");
256 endp = buf + strlen(buf);
263 case CLASS_PARSE_NID:
264 rc = parse_nid(buf, value, quiet);
266 case CLASS_PARSE_NET:
267 rc = parse_net(buf, value);
278 int class_parse_nid(char *buf, lnet_nid_t *nid, char **endh)
280 return class_parse_value(buf, CLASS_PARSE_NID, (void *)nid, endh, 0);
282 EXPORT_SYMBOL(class_parse_nid);
284 int class_parse_nid_quiet(char *buf, lnet_nid_t *nid, char **endh)
286 return class_parse_value(buf, CLASS_PARSE_NID, (void *)nid, endh, 1);
288 EXPORT_SYMBOL(class_parse_nid_quiet);
290 int class_parse_net(char *buf, __u32 *net, char **endh)
292 return class_parse_value(buf, CLASS_PARSE_NET, (void *)net, endh, 0);
294 EXPORT_SYMBOL(class_parse_net);
296 /* 1 param contains key and match
297 * 0 param contains key and not match
298 * -1 param does not contain key
300 int class_match_nid(char *buf, char *key, lnet_nid_t nid)
305 while (class_find_param(buf, key, &buf) == 0) {
306 /* please restrict to the nids pertaining to
307 * the specified nids */
308 while (class_parse_nid(buf, &tmp, &buf) == 0) {
316 EXPORT_SYMBOL(class_match_nid);
318 int class_match_net(char *buf, char *key, __u32 net)
323 while (class_find_param(buf, key, &buf) == 0) {
324 /* please restrict to the nids pertaining to
325 * the specified networks */
326 while (class_parse_net(buf, &tmp, &buf) == 0) {
334 EXPORT_SYMBOL(class_match_net);
336 /********************** class fns **********************/
339 * Create a new obd device and set the type, name and uuid. If successful,
340 * the new device can be accessed by either name or uuid.
342 int class_attach(struct lustre_cfg *lcfg)
344 struct obd_device *obd = NULL;
345 char *typename, *name, *uuid;
349 if (!LUSTRE_CFG_BUFLEN(lcfg, 1)) {
350 CERROR("No type passed!\n");
353 typename = lustre_cfg_string(lcfg, 1);
355 if (!LUSTRE_CFG_BUFLEN(lcfg, 0)) {
356 CERROR("No name passed!\n");
359 name = lustre_cfg_string(lcfg, 0);
361 if (!LUSTRE_CFG_BUFLEN(lcfg, 2)) {
362 CERROR("No UUID passed!\n");
365 uuid = lustre_cfg_string(lcfg, 2);
367 CDEBUG(D_IOCTL, "attach type %s name: %s uuid: %s\n",
368 MKSTR(typename), MKSTR(name), MKSTR(uuid));
370 obd = class_newdev(typename, name);
372 /* Already exists or out of obds */
375 CERROR("Cannot create device %s of type %s : %d\n",
379 LASSERTF(obd != NULL, "Cannot get obd device %s of type %s\n",
381 LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC,
382 "obd %p obd_magic %08X != %08X\n",
383 obd, obd->obd_magic, OBD_DEVICE_MAGIC);
384 LASSERTF(strncmp(obd->obd_name, name, strlen(name)) == 0,
385 "%p obd_name %s != %s\n", obd, obd->obd_name, name);
387 rwlock_init(&obd->obd_pool_lock);
388 obd->obd_pool_limit = 0;
389 obd->obd_pool_slv = 0;
391 CFS_INIT_LIST_HEAD(&obd->obd_exports);
392 CFS_INIT_LIST_HEAD(&obd->obd_unlinked_exports);
393 CFS_INIT_LIST_HEAD(&obd->obd_delayed_exports);
394 CFS_INIT_LIST_HEAD(&obd->obd_exports_timed);
395 CFS_INIT_LIST_HEAD(&obd->obd_nid_stats);
396 spin_lock_init(&obd->obd_nid_lock);
397 spin_lock_init(&obd->obd_dev_lock);
398 mutex_init(&obd->obd_dev_mutex);
399 spin_lock_init(&obd->obd_osfs_lock);
400 /* obd->obd_osfs_age must be set to a value in the distant
401 * past to guarantee a fresh statfs is fetched on mount. */
402 obd->obd_osfs_age = cfs_time_shift_64(-1000);
404 /* XXX belongs in setup not attach */
405 init_rwsem(&obd->obd_observer_link_sem);
407 cfs_init_timer(&obd->obd_recovery_timer);
408 spin_lock_init(&obd->obd_recovery_task_lock);
409 init_waitqueue_head(&obd->obd_next_transno_waitq);
410 init_waitqueue_head(&obd->obd_evict_inprogress_waitq);
411 CFS_INIT_LIST_HEAD(&obd->obd_req_replay_queue);
412 CFS_INIT_LIST_HEAD(&obd->obd_lock_replay_queue);
413 CFS_INIT_LIST_HEAD(&obd->obd_final_req_queue);
414 CFS_INIT_LIST_HEAD(&obd->obd_evict_list);
415 INIT_LIST_HEAD(&obd->obd_lwp_list);
417 llog_group_init(&obd->obd_olg);
419 obd->obd_conn_inprogress = 0;
422 if (len >= sizeof(obd->obd_uuid)) {
423 CERROR("uuid must be < %d bytes long\n",
424 (int)sizeof(obd->obd_uuid));
425 GOTO(out, rc = -EINVAL);
427 memcpy(obd->obd_uuid.uuid, uuid, len);
429 /* Detach drops this */
430 spin_lock(&obd->obd_dev_lock);
431 atomic_set(&obd->obd_refcount, 1);
432 spin_unlock(&obd->obd_dev_lock);
433 lu_ref_init(&obd->obd_reference);
434 lu_ref_add(&obd->obd_reference, "attach", obd);
436 obd->obd_attached = 1;
437 CDEBUG(D_IOCTL, "OBD: dev %d attached type %s with refcount %d\n",
438 obd->obd_minor, typename, atomic_read(&obd->obd_refcount));
442 class_release_dev(obd);
446 EXPORT_SYMBOL(class_attach);
448 /** Create hashes, self-export, and call type-specific setup.
449 * Setup is effectively the "start this obd" call.
451 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
454 struct obd_export *exp;
457 LASSERT(obd != NULL);
458 LASSERTF(obd == class_num2obd(obd->obd_minor),
459 "obd %p != obd_devs[%d] %p\n",
460 obd, obd->obd_minor, class_num2obd(obd->obd_minor));
461 LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC,
462 "obd %p obd_magic %08x != %08x\n",
463 obd, obd->obd_magic, OBD_DEVICE_MAGIC);
465 /* have we attached a type to this device? */
466 if (!obd->obd_attached) {
467 CERROR("Device %d not attached\n", obd->obd_minor);
471 if (obd->obd_set_up) {
472 CERROR("Device %d already setup (type %s)\n",
473 obd->obd_minor, obd->obd_type->typ_name);
477 /* is someone else setting us up right now? (attach inits spinlock) */
478 spin_lock(&obd->obd_dev_lock);
479 if (obd->obd_starting) {
480 spin_unlock(&obd->obd_dev_lock);
481 CERROR("Device %d setup in progress (type %s)\n",
482 obd->obd_minor, obd->obd_type->typ_name);
485 /* just leave this on forever. I can't use obd_set_up here because
486 other fns check that status, and we're not actually set up yet. */
487 obd->obd_starting = 1;
488 obd->obd_uuid_hash = NULL;
489 obd->obd_nid_hash = NULL;
490 obd->obd_nid_stats_hash = NULL;
491 spin_unlock(&obd->obd_dev_lock);
493 /* create an uuid-export lustre hash */
494 obd->obd_uuid_hash = cfs_hash_create("UUID_HASH",
497 HASH_UUID_BKT_BITS, 0,
500 &uuid_hash_ops, CFS_HASH_DEFAULT);
501 if (!obd->obd_uuid_hash)
502 GOTO(err_hash, err = -ENOMEM);
504 /* create a nid-export lustre hash */
505 obd->obd_nid_hash = cfs_hash_create("NID_HASH",
508 HASH_NID_BKT_BITS, 0,
511 &nid_hash_ops, CFS_HASH_DEFAULT);
512 if (!obd->obd_nid_hash)
513 GOTO(err_hash, err = -ENOMEM);
515 /* create a nid-stats lustre hash */
516 obd->obd_nid_stats_hash = cfs_hash_create("NID_STATS",
517 HASH_NID_STATS_CUR_BITS,
518 HASH_NID_STATS_MAX_BITS,
519 HASH_NID_STATS_BKT_BITS, 0,
522 &nid_stat_hash_ops, CFS_HASH_DEFAULT);
523 if (!obd->obd_nid_stats_hash)
524 GOTO(err_hash, err = -ENOMEM);
526 exp = class_new_export(obd, &obd->obd_uuid);
528 GOTO(err_hash, err = PTR_ERR(exp));
530 obd->obd_self_export = exp;
531 cfs_list_del_init(&exp->exp_obd_chain_timed);
532 class_export_put(exp);
534 err = obd_setup(obd, lcfg);
540 spin_lock(&obd->obd_dev_lock);
541 /* cleanup drops this */
542 class_incref(obd, "setup", obd);
543 spin_unlock(&obd->obd_dev_lock);
545 CDEBUG(D_IOCTL, "finished setup of obd %s (uuid %s)\n",
546 obd->obd_name, obd->obd_uuid.uuid);
550 if (obd->obd_self_export) {
551 class_unlink_export(obd->obd_self_export);
552 obd->obd_self_export = NULL;
555 if (obd->obd_uuid_hash) {
556 cfs_hash_putref(obd->obd_uuid_hash);
557 obd->obd_uuid_hash = NULL;
559 if (obd->obd_nid_hash) {
560 cfs_hash_putref(obd->obd_nid_hash);
561 obd->obd_nid_hash = NULL;
563 if (obd->obd_nid_stats_hash) {
564 cfs_hash_putref(obd->obd_nid_stats_hash);
565 obd->obd_nid_stats_hash = NULL;
567 obd->obd_starting = 0;
568 CERROR("setup %s failed (%d)\n", obd->obd_name, err);
571 EXPORT_SYMBOL(class_setup);
573 /** We have finished using this obd and are ready to destroy it.
574 * There can be no more references to this obd.
576 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg)
580 if (obd->obd_set_up) {
581 CERROR("OBD device %d still set up\n", obd->obd_minor);
585 spin_lock(&obd->obd_dev_lock);
586 if (!obd->obd_attached) {
587 spin_unlock(&obd->obd_dev_lock);
588 CERROR("OBD device %d not attached\n", obd->obd_minor);
591 obd->obd_attached = 0;
592 spin_unlock(&obd->obd_dev_lock);
594 CDEBUG(D_IOCTL, "detach on obd %s (uuid %s)\n",
595 obd->obd_name, obd->obd_uuid.uuid);
597 class_decref(obd, "attach", obd);
600 EXPORT_SYMBOL(class_detach);
602 /** Start shutting down the obd. There may be in-progess ops when
603 * this is called. We tell them to start shutting down with a call
604 * to class_disconnect_exports().
606 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg)
612 OBD_RACE(OBD_FAIL_LDLM_RECOV_CLIENTS);
614 if (!obd->obd_set_up) {
615 CERROR("Device %d not setup\n", obd->obd_minor);
619 spin_lock(&obd->obd_dev_lock);
620 if (obd->obd_stopping) {
621 spin_unlock(&obd->obd_dev_lock);
622 CERROR("OBD %d already stopping\n", obd->obd_minor);
625 /* Leave this on forever */
626 obd->obd_stopping = 1;
627 spin_unlock(&obd->obd_dev_lock);
629 /* wait for already-arrived-connections to finish. */
630 while (obd->obd_conn_inprogress > 0)
634 if (lcfg->lcfg_bufcount >= 2 && LUSTRE_CFG_BUFLEN(lcfg, 1) > 0) {
635 for (flag = lustre_cfg_string(lcfg, 1); *flag != 0; flag++)
641 LCONSOLE_WARN("Failing over %s\n",
644 obd->obd_no_transno = 1;
645 obd->obd_no_recov = 1;
646 if (OBP(obd, iocontrol)) {
647 obd_iocontrol(OBD_IOC_SYNC,
648 obd->obd_self_export,
653 CERROR("Unrecognised flag '%c'\n", *flag);
657 LASSERT(obd->obd_self_export);
659 /* The three references that should be remaining are the
660 * obd_self_export and the attach and setup references. */
661 if (atomic_read(&obd->obd_refcount) > 3) {
662 /* refcounf - 3 might be the number of real exports
663 (excluding self export). But class_incref is called
664 by other things as well, so don't count on it. */
665 CDEBUG(D_IOCTL, "%s: forcing exports to disconnect: %d\n",
666 obd->obd_name, atomic_read(&obd->obd_refcount) - 3);
667 dump_exports(obd, 0);
668 class_disconnect_exports(obd);
671 /* Precleanup, we must make sure all exports get destroyed. */
672 err = obd_precleanup(obd, OBD_CLEANUP_EXPORTS);
674 CERROR("Precleanup %s returned %d\n",
677 /* destroy an uuid-export hash body */
678 if (obd->obd_uuid_hash) {
679 cfs_hash_putref(obd->obd_uuid_hash);
680 obd->obd_uuid_hash = NULL;
683 /* destroy a nid-export hash body */
684 if (obd->obd_nid_hash) {
685 cfs_hash_putref(obd->obd_nid_hash);
686 obd->obd_nid_hash = NULL;
689 /* destroy a nid-stats hash body */
690 if (obd->obd_nid_stats_hash) {
691 cfs_hash_putref(obd->obd_nid_stats_hash);
692 obd->obd_nid_stats_hash = NULL;
695 class_decref(obd, "setup", obd);
700 EXPORT_SYMBOL(class_cleanup);
702 struct obd_device *class_incref(struct obd_device *obd,
703 const char *scope, const void *source)
705 lu_ref_add_atomic(&obd->obd_reference, scope, source);
706 atomic_inc(&obd->obd_refcount);
707 CDEBUG(D_INFO, "incref %s (%p) now %d\n", obd->obd_name, obd,
708 atomic_read(&obd->obd_refcount));
712 EXPORT_SYMBOL(class_incref);
714 void class_decref(struct obd_device *obd, const char *scope, const void *source)
719 spin_lock(&obd->obd_dev_lock);
720 atomic_dec(&obd->obd_refcount);
721 refs = atomic_read(&obd->obd_refcount);
722 spin_unlock(&obd->obd_dev_lock);
723 lu_ref_del(&obd->obd_reference, scope, source);
725 CDEBUG(D_INFO, "Decref %s (%p) now %d\n", obd->obd_name, obd, refs);
727 if ((refs == 1) && obd->obd_stopping) {
728 /* All exports have been destroyed; there should
729 be no more in-progress ops by this point.*/
731 spin_lock(&obd->obd_self_export->exp_lock);
732 obd->obd_self_export->exp_flags |= exp_flags_from_obd(obd);
733 spin_unlock(&obd->obd_self_export->exp_lock);
735 /* note that we'll recurse into class_decref again */
736 class_unlink_export(obd->obd_self_export);
741 CDEBUG(D_CONFIG, "finishing cleanup of obd %s (%s)\n",
742 obd->obd_name, obd->obd_uuid.uuid);
743 LASSERT(!obd->obd_attached);
744 if (obd->obd_stopping) {
745 /* If we're not stopping, we were never set up */
746 err = obd_cleanup(obd);
748 CERROR("Cleanup %s returned %d\n",
752 class_release_dev(obd);
755 EXPORT_SYMBOL(class_decref);
757 /** Add a failover nid location.
758 * Client obd types contact server obd types using this nid list.
760 int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg)
762 struct obd_import *imp;
763 struct obd_uuid uuid;
767 if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1 ||
768 LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(struct obd_uuid)) {
769 CERROR("invalid conn_uuid\n");
772 if (strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) &&
773 strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME) &&
774 strcmp(obd->obd_type->typ_name, LUSTRE_OSP_NAME) &&
775 strcmp(obd->obd_type->typ_name, LUSTRE_LWP_NAME) &&
776 strcmp(obd->obd_type->typ_name, LUSTRE_MGC_NAME)) {
777 CERROR("can't add connection on non-client dev\n");
781 imp = obd->u.cli.cl_import;
783 CERROR("try to add conn on immature client dev\n");
787 obd_str2uuid(&uuid, lustre_cfg_string(lcfg, 1));
788 rc = obd_add_conn(imp, &uuid, lcfg->lcfg_num);
792 EXPORT_SYMBOL(class_add_conn);
794 /** Remove a failover nid location.
796 int class_del_conn(struct obd_device *obd, struct lustre_cfg *lcfg)
798 struct obd_import *imp;
799 struct obd_uuid uuid;
803 if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1 ||
804 LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(struct obd_uuid)) {
805 CERROR("invalid conn_uuid\n");
808 if (strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) &&
809 strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME)) {
810 CERROR("can't del connection on non-client dev\n");
814 imp = obd->u.cli.cl_import;
816 CERROR("try to del conn on immature client dev\n");
820 obd_str2uuid(&uuid, lustre_cfg_string(lcfg, 1));
821 rc = obd_del_conn(imp, &uuid);
826 CFS_LIST_HEAD(lustre_profile_list);
828 struct lustre_profile *class_get_profile(const char * prof)
830 struct lustre_profile *lprof;
833 cfs_list_for_each_entry(lprof, &lustre_profile_list, lp_list) {
834 if (!strcmp(lprof->lp_profile, prof)) {
840 EXPORT_SYMBOL(class_get_profile);
842 /** Create a named "profile".
843 * This defines the mdc and osc names to use for a client.
844 * This also is used to define the lov to be used by a mdt.
846 int class_add_profile(int proflen, char *prof, int osclen, char *osc,
847 int mdclen, char *mdc)
849 struct lustre_profile *lprof;
853 CDEBUG(D_CONFIG, "Add profile %s\n", prof);
855 OBD_ALLOC(lprof, sizeof(*lprof));
858 CFS_INIT_LIST_HEAD(&lprof->lp_list);
860 LASSERT(proflen == (strlen(prof) + 1));
861 OBD_ALLOC(lprof->lp_profile, proflen);
862 if (lprof->lp_profile == NULL)
863 GOTO(out, err = -ENOMEM);
864 memcpy(lprof->lp_profile, prof, proflen);
866 LASSERT(osclen == (strlen(osc) + 1));
867 OBD_ALLOC(lprof->lp_dt, osclen);
868 if (lprof->lp_dt == NULL)
869 GOTO(out, err = -ENOMEM);
870 memcpy(lprof->lp_dt, osc, osclen);
873 LASSERT(mdclen == (strlen(mdc) + 1));
874 OBD_ALLOC(lprof->lp_md, mdclen);
875 if (lprof->lp_md == NULL)
876 GOTO(out, err = -ENOMEM);
877 memcpy(lprof->lp_md, mdc, mdclen);
880 cfs_list_add(&lprof->lp_list, &lustre_profile_list);
885 OBD_FREE(lprof->lp_md, mdclen);
887 OBD_FREE(lprof->lp_dt, osclen);
888 if (lprof->lp_profile)
889 OBD_FREE(lprof->lp_profile, proflen);
890 OBD_FREE(lprof, sizeof(*lprof));
894 void class_del_profile(const char *prof)
896 struct lustre_profile *lprof;
899 CDEBUG(D_CONFIG, "Del profile %s\n", prof);
901 lprof = class_get_profile(prof);
903 cfs_list_del(&lprof->lp_list);
904 OBD_FREE(lprof->lp_profile, strlen(lprof->lp_profile) + 1);
905 OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1);
907 OBD_FREE(lprof->lp_md, strlen(lprof->lp_md) + 1);
908 OBD_FREE(lprof, sizeof *lprof);
912 EXPORT_SYMBOL(class_del_profile);
915 void class_del_profiles(void)
917 struct lustre_profile *lprof, *n;
920 cfs_list_for_each_entry_safe(lprof, n, &lustre_profile_list, lp_list) {
921 cfs_list_del(&lprof->lp_list);
922 OBD_FREE(lprof->lp_profile, strlen(lprof->lp_profile) + 1);
923 OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1);
925 OBD_FREE(lprof->lp_md, strlen(lprof->lp_md) + 1);
926 OBD_FREE(lprof, sizeof *lprof);
930 EXPORT_SYMBOL(class_del_profiles);
932 static int class_set_global(char *ptr, int val, struct lustre_cfg *lcfg)
935 if (class_match_param(ptr, PARAM_AT_MIN, NULL) == 0)
937 else if (class_match_param(ptr, PARAM_AT_MAX, NULL) == 0)
939 else if (class_match_param(ptr, PARAM_AT_EXTRA, NULL) == 0)
941 else if (class_match_param(ptr, PARAM_AT_EARLY_MARGIN, NULL) == 0)
942 at_early_margin = val;
943 else if (class_match_param(ptr, PARAM_AT_HISTORY, NULL) == 0)
945 else if (class_match_param(ptr, PARAM_JOBID_VAR, NULL) == 0)
946 strlcpy(obd_jobid_var, lustre_cfg_string(lcfg, 2),
947 JOBSTATS_JOBID_VAR_MAX_LEN + 1);
951 CDEBUG(D_IOCTL, "global %s = %d\n", ptr, val);
956 /* We can't call ll_process_config or lquota_process_config directly because
957 * it lives in a module that must be loaded after this one. */
958 static int (*client_process_config)(struct lustre_cfg *lcfg) = NULL;
959 static int (*quota_process_config)(struct lustre_cfg *lcfg) = NULL;
961 void lustre_register_client_process_config(int (*cpc)(struct lustre_cfg *lcfg))
963 client_process_config = cpc;
965 EXPORT_SYMBOL(lustre_register_client_process_config);
968 * Rename the proc parameter in \a cfg with a new name \a new_name.
970 * \param cfg config structure which contains the proc parameter
971 * \param new_name new name of the proc parameter
973 * \retval valid-pointer pointer to the newly-allocated config structure
974 * which contains the renamed proc parameter
975 * \retval ERR_PTR(-EINVAL) if \a cfg or \a new_name is NULL, or \a cfg does
976 * not contain a proc parameter
977 * \retval ERR_PTR(-ENOMEM) if memory allocation failure occurs
979 struct lustre_cfg *lustre_cfg_rename(struct lustre_cfg *cfg,
980 const char *new_name)
982 struct lustre_cfg_bufs *bufs = NULL;
983 struct lustre_cfg *new_cfg = NULL;
985 char *new_param = NULL;
991 if (cfg == NULL || new_name == NULL)
992 RETURN(ERR_PTR(-EINVAL));
994 param = lustre_cfg_string(cfg, 1);
996 RETURN(ERR_PTR(-EINVAL));
998 value = strchr(param, '=');
1000 name_len = strlen(param);
1002 name_len = value - param;
1004 new_len = LUSTRE_CFG_BUFLEN(cfg, 1) + strlen(new_name) - name_len;
1006 OBD_ALLOC(new_param, new_len);
1007 if (new_param == NULL)
1008 RETURN(ERR_PTR(-ENOMEM));
1010 strcpy(new_param, new_name);
1012 strcat(new_param, value);
1014 OBD_ALLOC_PTR(bufs);
1016 OBD_FREE(new_param, new_len);
1017 RETURN(ERR_PTR(-ENOMEM));
1020 lustre_cfg_bufs_reset(bufs, NULL);
1021 lustre_cfg_bufs_init(bufs, cfg);
1022 lustre_cfg_bufs_set_string(bufs, 1, new_param);
1024 new_cfg = lustre_cfg_new(cfg->lcfg_command, bufs);
1026 OBD_FREE(new_param, new_len);
1028 if (new_cfg == NULL)
1029 RETURN(ERR_PTR(-ENOMEM));
1031 new_cfg->lcfg_num = cfg->lcfg_num;
1032 new_cfg->lcfg_flags = cfg->lcfg_flags;
1033 new_cfg->lcfg_nid = cfg->lcfg_nid;
1034 new_cfg->lcfg_nal = cfg->lcfg_nal;
1038 EXPORT_SYMBOL(lustre_cfg_rename);
1040 static int process_param2_config(struct lustre_cfg *lcfg)
1042 char *param = lustre_cfg_string(lcfg, 1);
1043 char *upcall = lustre_cfg_string(lcfg, 2);
1045 [0] = "/usr/sbin/lctl",
1050 struct timeval start;
1055 /* Add upcall processing here. Now only lctl is supported */
1056 if (strcmp(upcall, LCTL_UPCALL) != 0) {
1057 CERROR("Unsupported upcall %s\n", upcall);
1061 do_gettimeofday(&start);
1062 rc = call_usermodehelper(argv[0], argv, NULL, 0);
1063 do_gettimeofday(&end);
1066 CERROR("lctl: error invoking upcall %s %s %s: rc = %d; "
1067 "time %ldus\n", argv[0], argv[1], argv[2], rc,
1068 cfs_timeval_sub(&end, &start, NULL));
1070 CDEBUG(D_HA, "lctl: invoked upcall %s %s %s, time %ldus\n",
1071 argv[0], argv[1], argv[2],
1072 cfs_timeval_sub(&end, &start, NULL));
1079 void lustre_register_quota_process_config(int (*qpc)(struct lustre_cfg *lcfg))
1081 quota_process_config = qpc;
1083 EXPORT_SYMBOL(lustre_register_quota_process_config);
1085 /** Process configuration commands given in lustre_cfg form.
1086 * These may come from direct calls (e.g. class_manual_cleanup)
1087 * or processing the config llog, or ioctl from lctl.
1089 int class_process_config(struct lustre_cfg *lcfg)
1091 struct obd_device *obd;
1094 LASSERT(lcfg && !IS_ERR(lcfg));
1095 CDEBUG(D_IOCTL, "processing cmd: %x\n", lcfg->lcfg_command);
1097 /* Commands that don't need a device */
1098 switch(lcfg->lcfg_command) {
1100 err = class_attach(lcfg);
1103 case LCFG_ADD_UUID: {
1104 CDEBUG(D_IOCTL, "adding mapping from uuid %s to nid "LPX64
1105 " (%s)\n", lustre_cfg_string(lcfg, 1),
1106 lcfg->lcfg_nid, libcfs_nid2str(lcfg->lcfg_nid));
1108 err = class_add_uuid(lustre_cfg_string(lcfg, 1), lcfg->lcfg_nid);
1111 case LCFG_DEL_UUID: {
1112 CDEBUG(D_IOCTL, "removing mappings for uuid %s\n",
1113 (lcfg->lcfg_bufcount < 2 || LUSTRE_CFG_BUFLEN(lcfg, 1) == 0)
1114 ? "<all uuids>" : lustre_cfg_string(lcfg, 1));
1116 err = class_del_uuid(lustre_cfg_string(lcfg, 1));
1119 case LCFG_MOUNTOPT: {
1120 CDEBUG(D_IOCTL, "mountopt: profile %s osc %s mdc %s\n",
1121 lustre_cfg_string(lcfg, 1),
1122 lustre_cfg_string(lcfg, 2),
1123 lustre_cfg_string(lcfg, 3));
1124 /* set these mount options somewhere, so ll_fill_super
1126 err = class_add_profile(LUSTRE_CFG_BUFLEN(lcfg, 1),
1127 lustre_cfg_string(lcfg, 1),
1128 LUSTRE_CFG_BUFLEN(lcfg, 2),
1129 lustre_cfg_string(lcfg, 2),
1130 LUSTRE_CFG_BUFLEN(lcfg, 3),
1131 lustre_cfg_string(lcfg, 3));
1134 case LCFG_DEL_MOUNTOPT: {
1135 CDEBUG(D_IOCTL, "mountopt: profile %s\n",
1136 lustre_cfg_string(lcfg, 1));
1137 class_del_profile(lustre_cfg_string(lcfg, 1));
1140 case LCFG_SET_TIMEOUT: {
1141 CDEBUG(D_IOCTL, "changing lustre timeout from %d to %d\n",
1142 obd_timeout, lcfg->lcfg_num);
1143 obd_timeout = max(lcfg->lcfg_num, 1U);
1144 obd_timeout_set = 1;
1147 case LCFG_SET_LDLM_TIMEOUT: {
1148 CDEBUG(D_IOCTL, "changing lustre ldlm_timeout from %d to %d\n",
1149 ldlm_timeout, lcfg->lcfg_num);
1150 ldlm_timeout = max(lcfg->lcfg_num, 1U);
1151 if (ldlm_timeout >= obd_timeout)
1152 ldlm_timeout = max(obd_timeout / 3, 1U);
1153 ldlm_timeout_set = 1;
1156 case LCFG_SET_UPCALL: {
1157 LCONSOLE_ERROR_MSG(0x15a, "recovery upcall is deprecated\n");
1158 /* COMPAT_146 Don't fail on old configs */
1162 struct cfg_marker *marker;
1163 marker = lustre_cfg_buf(lcfg, 1);
1164 CDEBUG(D_IOCTL, "marker %d (%#x) %.16s %s\n", marker->cm_step,
1165 marker->cm_flags, marker->cm_tgtname, marker->cm_comment);
1170 /* llite has no obd */
1171 if ((class_match_param(lustre_cfg_string(lcfg, 1),
1172 PARAM_LLITE, 0) == 0) &&
1173 client_process_config) {
1174 err = (*client_process_config)(lcfg);
1176 } else if ((class_match_param(lustre_cfg_string(lcfg, 1),
1177 PARAM_SYS, &tmp) == 0)) {
1178 /* Global param settings */
1179 err = class_set_global(tmp, lcfg->lcfg_num, lcfg);
1181 * Client or server should not fail to mount if
1182 * it hits an unknown configuration parameter.
1185 CWARN("Ignoring unknown param %s\n", tmp);
1188 } else if ((class_match_param(lustre_cfg_string(lcfg, 1),
1189 PARAM_QUOTA, &tmp) == 0) &&
1190 quota_process_config) {
1191 err = (*quota_process_config)(lcfg);
1197 case LCFG_SET_PARAM: {
1198 err = process_param2_config(lcfg);
1202 /* Commands that require a device */
1203 obd = class_name2obd(lustre_cfg_string(lcfg, 0));
1205 if (!LUSTRE_CFG_BUFLEN(lcfg, 0))
1206 CERROR("this lcfg command requires a device name\n");
1208 CERROR("no device for: %s\n",
1209 lustre_cfg_string(lcfg, 0));
1211 GOTO(out, err = -EINVAL);
1214 switch(lcfg->lcfg_command) {
1216 err = class_setup(obd, lcfg);
1220 err = class_detach(obd, lcfg);
1223 case LCFG_CLEANUP: {
1224 err = class_cleanup(obd, lcfg);
1227 case LCFG_ADD_CONN: {
1228 err = class_add_conn(obd, lcfg);
1231 case LCFG_DEL_CONN: {
1232 err = class_del_conn(obd, lcfg);
1235 case LCFG_POOL_NEW: {
1236 err = obd_pool_new(obd, lustre_cfg_string(lcfg, 2));
1239 case LCFG_POOL_ADD: {
1240 err = obd_pool_add(obd, lustre_cfg_string(lcfg, 2),
1241 lustre_cfg_string(lcfg, 3));
1244 case LCFG_POOL_REM: {
1245 err = obd_pool_rem(obd, lustre_cfg_string(lcfg, 2),
1246 lustre_cfg_string(lcfg, 3));
1249 case LCFG_POOL_DEL: {
1250 err = obd_pool_del(obd, lustre_cfg_string(lcfg, 2));
1254 err = obd_process_config(obd, sizeof(*lcfg), lcfg);
1260 if ((err < 0) && !(lcfg->lcfg_command & LCFG_REQUIRED)) {
1261 CWARN("Ignoring error %d on optional command %#x\n", err,
1262 lcfg->lcfg_command);
1267 EXPORT_SYMBOL(class_process_config);
1269 #ifndef HAVE_ONLY_PROCFS_SEQ
1270 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
1271 struct lustre_cfg *lcfg, void *data)
1274 struct lprocfs_vars *var;
1276 int i, keylen, vallen;
1277 int matched = 0, j = 0;
1282 if (lcfg->lcfg_command != LCFG_PARAM) {
1283 CERROR("Unknown command: %d\n", lcfg->lcfg_command);
1287 /* e.g. tunefs.lustre --param mdt.group_upcall=foo /r/tmp/lustre-mdt
1288 or lctl conf_param lustre-MDT0000.mdt.group_upcall=bar
1289 or lctl conf_param lustre-OST0000.osc.max_dirty_mb=36 */
1290 for (i = 1; i < lcfg->lcfg_bufcount; i++) {
1291 key = lustre_cfg_buf(lcfg, i);
1292 /* Strip off prefix */
1293 if (class_match_param(key, prefix, &key))
1294 /* If the prefix doesn't match, return error so we
1295 * can pass it down the stack */
1297 sval = strchr(key, '=');
1298 if (!sval || (*(sval + 1) == 0)) {
1299 CERROR("Can't parse param %s (missing '=')\n", key);
1300 /* rc = -EINVAL; continue parsing other params */
1303 keylen = sval - key;
1305 vallen = strlen(sval);
1308 /* Search proc entries */
1309 while (lvars[j].name) {
1311 if (class_match_param(key, (char *)var->name, 0) == 0 &&
1312 keylen == strlen(var->name)) {
1316 if (var->write_fptr) {
1320 rc = (var->write_fptr)(NULL, sval,
1329 CERROR("%.*s: %s unknown param %s\n",
1330 (int)strlen(prefix) - 1, prefix,
1331 (char *)lustre_cfg_string(lcfg, 0), key);
1332 /* rc = -EINVAL; continue parsing other params */
1334 } else if (rc < 0) {
1335 CERROR("%s: error writing proc entry '%s': rc = %d\n",
1336 prefix, var->name, rc);
1339 CDEBUG(D_CONFIG, "%s.%.*s: Set parameter %.*s=%s\n",
1340 lustre_cfg_string(lcfg, 0),
1341 (int)strlen(prefix) - 1, prefix,
1342 (int)(sval - key - 1), key, sval);
1352 CDEBUG(D_CONFIG, "liblustre can't process params.\n");
1353 /* Don't throw config error */
1357 EXPORT_SYMBOL(class_process_proc_param);
1360 int class_process_proc_seq_param(char *prefix, struct lprocfs_seq_vars *lvars,
1361 struct lustre_cfg *lcfg, void *data)
1364 struct lprocfs_seq_vars *var;
1365 struct file fakefile;
1366 struct seq_file fake_seqfile;
1368 int i, keylen, vallen;
1369 int matched = 0, j = 0;
1374 if (lcfg->lcfg_command != LCFG_PARAM) {
1375 CERROR("Unknown command: %d\n", lcfg->lcfg_command);
1379 /* fake a seq file so that var->fops->write can work... */
1380 fakefile.private_data = &fake_seqfile;
1381 fake_seqfile.private = data;
1382 /* e.g. tunefs.lustre --param mdt.group_upcall=foo /r/tmp/lustre-mdt
1383 or lctl conf_param lustre-MDT0000.mdt.group_upcall=bar
1384 or lctl conf_param lustre-OST0000.osc.max_dirty_mb=36 */
1385 for (i = 1; i < lcfg->lcfg_bufcount; i++) {
1386 key = lustre_cfg_buf(lcfg, i);
1387 /* Strip off prefix */
1388 if (class_match_param(key, prefix, &key))
1389 /* If the prefix doesn't match, return error so we
1390 * can pass it down the stack */
1392 sval = strchr(key, '=');
1393 if (!sval || (*(sval + 1) == 0)) {
1394 CERROR("Can't parse param %s (missing '=')\n", key);
1395 /* rc = -EINVAL; continue parsing other params */
1398 keylen = sval - key;
1400 vallen = strlen(sval);
1403 /* Search proc entries */
1404 while (lvars[j].name) {
1406 if (class_match_param(key, (char *)var->name, 0) == 0 &&
1407 keylen == strlen(var->name)) {
1411 if (var->fops && var->fops->write) {
1415 rc = (var->fops->write)(&fakefile, sval,
1424 CERROR("%.*s: %s unknown param %s\n",
1425 (int)strlen(prefix) - 1, prefix,
1426 (char *)lustre_cfg_string(lcfg, 0), key);
1427 /* rc = -EINVAL; continue parsing other params */
1429 } else if (rc < 0) {
1430 CERROR("%s: error writing proc entry '%s': rc = %d\n",
1431 prefix, var->name, rc);
1434 CDEBUG(D_CONFIG, "%s.%.*s: Set parameter %.*s=%s\n",
1435 lustre_cfg_string(lcfg, 0),
1436 (int)strlen(prefix) - 1, prefix,
1437 (int)(sval - key - 1), key, sval);
1447 CDEBUG(D_CONFIG, "liblustre can't process params.\n");
1448 /* Don't throw config error */
1452 EXPORT_SYMBOL(class_process_proc_seq_param);
1455 extern int lustre_check_exclusion(struct super_block *sb, char *svname);
1457 #define lustre_check_exclusion(a,b) 0
1461 * Supplemental functions for config logs, it allocates lustre_cfg
1462 * buffers plus initialized llog record header at the beginning.
1464 struct llog_cfg_rec *lustre_cfg_rec_new(int cmd, struct lustre_cfg_bufs *bufs)
1466 struct llog_cfg_rec *lcr;
1471 reclen = lustre_cfg_len(bufs->lcfg_bufcount, bufs->lcfg_buflen);
1472 reclen = llog_data_len(reclen) + sizeof(struct llog_rec_hdr) +
1473 sizeof(struct llog_rec_tail);
1475 OBD_ALLOC(lcr, reclen);
1479 lustre_cfg_init(&lcr->lcr_cfg, cmd, bufs);
1481 lcr->lcr_hdr.lrh_len = reclen;
1482 lcr->lcr_hdr.lrh_type = OBD_CFG_REC;
1486 EXPORT_SYMBOL(lustre_cfg_rec_new);
1488 void lustre_cfg_rec_free(struct llog_cfg_rec *lcr)
1491 OBD_FREE(lcr, lcr->lcr_hdr.lrh_len);
1494 EXPORT_SYMBOL(lustre_cfg_rec_free);
1496 /** Parse a configuration llog, doing various manipulations on them
1497 * for various reasons, (modifications for compatibility, skip obsolete
1498 * records, change uuids, etc), then class_process_config() resulting
1501 int class_config_llog_handler(const struct lu_env *env,
1502 struct llog_handle *handle,
1503 struct llog_rec_hdr *rec, void *data)
1505 struct config_llog_instance *clli = data;
1506 int cfg_len = rec->lrh_len;
1507 char *cfg_buf = (char*) (rec + 1);
1511 //class_config_dump_handler(handle, rec, data);
1513 switch (rec->lrh_type) {
1515 struct lustre_cfg *lcfg, *lcfg_new;
1516 struct lustre_cfg_bufs bufs;
1517 char *inst_name = NULL;
1519 int inst = 0, swab = 0;
1521 lcfg = (struct lustre_cfg *)cfg_buf;
1522 if (lcfg->lcfg_version == __swab32(LUSTRE_CFG_VERSION)) {
1523 lustre_swab_lustre_cfg(lcfg);
1527 rc = lustre_cfg_sanity_check(cfg_buf, cfg_len);
1531 /* Figure out config state info */
1532 if (lcfg->lcfg_command == LCFG_MARKER) {
1533 struct cfg_marker *marker = lustre_cfg_buf(lcfg, 1);
1534 lustre_swab_cfg_marker(marker, swab,
1535 LUSTRE_CFG_BUFLEN(lcfg, 1));
1536 CDEBUG(D_CONFIG, "Marker, inst_flg=%#x mark_flg=%#x\n",
1537 clli->cfg_flags, marker->cm_flags);
1538 if (marker->cm_flags & CM_START) {
1539 /* all previous flags off */
1540 clli->cfg_flags = CFG_F_MARKER;
1541 server_name2index(marker->cm_tgtname,
1542 &clli->cfg_lwp_idx, NULL);
1543 if (marker->cm_flags & CM_SKIP) {
1544 clli->cfg_flags |= CFG_F_SKIP;
1545 CDEBUG(D_CONFIG, "SKIP #%d\n",
1547 } else if ((marker->cm_flags & CM_EXCLUDE) ||
1549 lustre_check_exclusion(clli->cfg_sb,
1550 marker->cm_tgtname))) {
1551 clli->cfg_flags |= CFG_F_EXCLUDE;
1552 CDEBUG(D_CONFIG, "EXCLUDE %d\n",
1555 } else if (marker->cm_flags & CM_END) {
1556 clli->cfg_flags = 0;
1559 /* A config command without a start marker before it is
1560 illegal (post 146) */
1561 if (!(clli->cfg_flags & CFG_F_COMPAT146) &&
1562 !(clli->cfg_flags & CFG_F_MARKER) &&
1563 (lcfg->lcfg_command != LCFG_MARKER)) {
1564 CWARN("Config not inside markers, ignoring! "
1565 "(inst: %p, uuid: %s, flags: %#x)\n",
1567 clli->cfg_uuid.uuid, clli->cfg_flags);
1568 clli->cfg_flags |= CFG_F_SKIP;
1570 if (clli->cfg_flags & CFG_F_SKIP) {
1571 CDEBUG(D_CONFIG, "skipping %#x\n",
1574 /* No processing! */
1579 * For interoperability between 1.8 and 2.0,
1580 * rename "mds" obd device type to "mdt".
1583 char *typename = lustre_cfg_string(lcfg, 1);
1584 char *index = lustre_cfg_string(lcfg, 2);
1586 if ((lcfg->lcfg_command == LCFG_ATTACH && typename &&
1587 strcmp(typename, "mds") == 0)) {
1588 CWARN("For 1.8 interoperability, rename obd "
1589 "type from mds to mdt\n");
1592 if ((lcfg->lcfg_command == LCFG_SETUP && index &&
1593 strcmp(index, "type") == 0)) {
1594 CDEBUG(D_INFO, "For 1.8 interoperability, "
1595 "set this index to '0'\n");
1601 #if defined(HAVE_SERVER_SUPPORT) && defined(__KERNEL__)
1602 /* newer MDS replaces LOV/OSC with LOD/OSP */
1604 char *typename = lustre_cfg_string(lcfg, 1);
1606 if ((lcfg->lcfg_command == LCFG_ATTACH && typename &&
1607 strcmp(typename, LUSTRE_LOV_NAME) == 0) &&
1608 IS_MDT(s2lsi(clli->cfg_sb))) {
1610 "For 2.x interoperability, rename obd "
1611 "type from lov to lod (%s)\n",
1612 s2lsi(clli->cfg_sb)->lsi_svname);
1613 strcpy(typename, LUSTRE_LOD_NAME);
1615 if ((lcfg->lcfg_command == LCFG_ATTACH && typename &&
1616 strcmp(typename, LUSTRE_OSC_NAME) == 0) &&
1617 IS_MDT(s2lsi(clli->cfg_sb))) {
1619 "For 2.x interoperability, rename obd "
1620 "type from osc to osp (%s)\n",
1621 s2lsi(clli->cfg_sb)->lsi_svname);
1622 strcpy(typename, LUSTRE_OSP_NAME);
1627 if (clli->cfg_flags & CFG_F_EXCLUDE) {
1628 CDEBUG(D_CONFIG, "cmd: %x marked EXCLUDED\n",
1629 lcfg->lcfg_command);
1630 if (lcfg->lcfg_command == LCFG_LOV_ADD_OBD)
1631 /* Add inactive instead */
1632 lcfg->lcfg_command = LCFG_LOV_ADD_INA;
1635 lustre_cfg_bufs_init(&bufs, lcfg);
1637 if (clli && clli->cfg_instance &&
1638 LUSTRE_CFG_BUFLEN(lcfg, 0) > 0){
1640 inst_len = LUSTRE_CFG_BUFLEN(lcfg, 0) +
1641 sizeof(clli->cfg_instance) * 2 + 4;
1642 OBD_ALLOC(inst_name, inst_len);
1643 if (inst_name == NULL)
1644 GOTO(out, rc = -ENOMEM);
1645 sprintf(inst_name, "%s-%p",
1646 lustre_cfg_string(lcfg, 0),
1647 clli->cfg_instance);
1648 lustre_cfg_bufs_set_string(&bufs, 0, inst_name);
1649 CDEBUG(D_CONFIG, "cmd %x, instance name: %s\n",
1650 lcfg->lcfg_command, inst_name);
1653 /* we override the llog's uuid for clients, to insure they
1655 if (clli && clli->cfg_instance != NULL &&
1656 lcfg->lcfg_command == LCFG_ATTACH) {
1657 lustre_cfg_bufs_set_string(&bufs, 2,
1658 clli->cfg_uuid.uuid);
1661 * sptlrpc config record, we expect 2 data segments:
1662 * [0]: fs_name/target_name,
1664 * moving them to index [1] and [2], and insert MGC's
1665 * obdname at index [0].
1667 if (clli && clli->cfg_instance == NULL &&
1668 lcfg->lcfg_command == LCFG_SPTLRPC_CONF) {
1669 lustre_cfg_bufs_set(&bufs, 2, bufs.lcfg_buf[1],
1670 bufs.lcfg_buflen[1]);
1671 lustre_cfg_bufs_set(&bufs, 1, bufs.lcfg_buf[0],
1672 bufs.lcfg_buflen[0]);
1673 lustre_cfg_bufs_set_string(&bufs, 0,
1677 lcfg_new = lustre_cfg_new(lcfg->lcfg_command, &bufs);
1678 if (lcfg_new == NULL)
1679 GOTO(out, rc = -ENOMEM);
1681 lcfg_new->lcfg_num = lcfg->lcfg_num;
1682 lcfg_new->lcfg_flags = lcfg->lcfg_flags;
1684 /* XXX Hack to try to remain binary compatible with
1685 * pre-newconfig logs */
1686 if (lcfg->lcfg_nal != 0 && /* pre-newconfig log? */
1687 (lcfg->lcfg_nid >> 32) == 0) {
1688 __u32 addr = (__u32)(lcfg->lcfg_nid & 0xffffffff);
1690 lcfg_new->lcfg_nid =
1691 LNET_MKNID(LNET_MKNET(lcfg->lcfg_nal, 0), addr);
1692 CWARN("Converted pre-newconfig NAL %d NID %x to %s\n",
1693 lcfg->lcfg_nal, addr,
1694 libcfs_nid2str(lcfg_new->lcfg_nid));
1696 lcfg_new->lcfg_nid = lcfg->lcfg_nid;
1699 lcfg_new->lcfg_nal = 0; /* illegal value for obsolete field */
1701 rc = class_process_config(lcfg_new);
1702 lustre_cfg_free(lcfg_new);
1705 OBD_FREE(inst_name, inst_len);
1709 CERROR("Unknown llog record type %#x encountered\n",
1715 CERROR("%s: cfg command failed: rc = %d\n",
1716 handle->lgh_ctxt->loc_obd->obd_name, rc);
1717 class_config_dump_handler(NULL, handle, rec, data);
1721 EXPORT_SYMBOL(class_config_llog_handler);
1723 int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
1724 char *name, struct config_llog_instance *cfg)
1726 struct llog_process_cat_data cd = {0, 0};
1727 struct llog_handle *llh;
1732 CDEBUG(D_INFO, "looking up llog %s\n", name);
1733 rc = llog_open(env, ctxt, &llh, NULL, name, LLOG_OPEN_EXISTS);
1737 rc = llog_init_handle(env, llh, LLOG_F_IS_PLAIN, NULL);
1739 GOTO(parse_out, rc);
1741 /* continue processing from where we last stopped to end-of-log */
1743 cd.lpcd_first_idx = cfg->cfg_last_idx;
1744 callback = cfg->cfg_callback;
1745 LASSERT(callback != NULL);
1747 callback = class_config_llog_handler;
1750 cd.lpcd_last_idx = 0;
1752 rc = llog_process(env, llh, callback, cfg, &cd);
1754 CDEBUG(D_CONFIG, "Processed log %s gen %d-%d (rc=%d)\n", name,
1755 cd.lpcd_first_idx + 1, cd.lpcd_last_idx, rc);
1757 cfg->cfg_last_idx = cd.lpcd_last_idx;
1760 llog_close(env, llh);
1763 EXPORT_SYMBOL(class_config_parse_llog);
1765 struct lcfg_type_data {
1769 } lcfg_data_table[] = {
1770 { LCFG_ATTACH, "attach", { "type", "UUID", "3", "4" } },
1771 { LCFG_DETACH, "detach", { "1", "2", "3", "4" } },
1772 { LCFG_SETUP, "setup", { "UUID", "node", "options", "failout" } },
1773 { LCFG_CLEANUP, "cleanup", { "1", "2", "3", "4" } },
1774 { LCFG_ADD_UUID, "add_uuid", { "node", "2", "3", "4" } },
1775 { LCFG_DEL_UUID, "del_uuid", { "1", "2", "3", "4" } },
1776 { LCFG_MOUNTOPT, "new_profile", { "name", "lov", "lmv", "4" } },
1777 { LCFG_DEL_MOUNTOPT, "del_mountopt", { "1", "2", "3", "4" } , },
1778 { LCFG_SET_TIMEOUT, "set_timeout", { "parameter", "2", "3", "4" } },
1779 { LCFG_SET_UPCALL, "set_upcall", { "1", "2", "3", "4" } },
1780 { LCFG_ADD_CONN, "add_conn", { "node", "2", "3", "4" } },
1781 { LCFG_DEL_CONN, "del_conn", { "1", "2", "3", "4" } },
1782 { LCFG_LOV_ADD_OBD, "add_osc", { "ost", "index", "gen", "UUID" } },
1783 { LCFG_LOV_DEL_OBD, "del_osc", { "1", "2", "3", "4" } },
1784 { LCFG_PARAM, "set_param", { "parameter", "value", "3", "4" } },
1785 { LCFG_MARKER, "marker", { "1", "2", "3", "4" } },
1786 { LCFG_LOG_START, "log_start", { "1", "2", "3", "4" } },
1787 { LCFG_LOG_END, "log_end", { "1", "2", "3", "4" } },
1788 { LCFG_LOV_ADD_INA, "add_osc_inactive", { "1", "2", "3", "4" } },
1789 { LCFG_ADD_MDC, "add_mdc", { "mdt", "index", "gen", "UUID" } },
1790 { LCFG_DEL_MDC, "del_mdc", { "1", "2", "3", "4" } },
1791 { LCFG_SPTLRPC_CONF, "security", { "parameter", "2", "3", "4" } },
1792 { LCFG_POOL_NEW, "new_pool", { "fsname", "pool", "3", "4" } },
1793 { LCFG_POOL_ADD, "add_pool", { "fsname", "pool", "ost", "4" } },
1794 { LCFG_POOL_REM, "remove_pool", { "fsname", "pool", "ost", "4" } },
1795 { LCFG_POOL_DEL, "del_pool", { "fsname", "pool", "3", "4" } },
1796 { LCFG_SET_LDLM_TIMEOUT, "set_ldlm_timeout",
1797 { "parameter", "2", "3", "4" } },
1798 { 0, NULL, { NULL, NULL, NULL, NULL } }
1801 static struct lcfg_type_data *lcfg_cmd2data(__u32 cmd)
1805 while (lcfg_data_table[i].ltd_type != 0) {
1806 if (lcfg_data_table[i].ltd_type == cmd)
1807 return &lcfg_data_table[i];
1814 * parse config record and output dump in supplied buffer.
1815 * This is separated from class_config_dump_handler() to use
1816 * for ioctl needs as well
1819 * - { event: attach, device: lustrewt-clilov, type: lov, UUID:
1820 * lustrewt-clilov_UUID }
1822 int class_config_yaml_output(struct llog_rec_hdr *rec, char *buf, int size)
1824 struct lustre_cfg *lcfg = (struct lustre_cfg *)(rec + 1);
1826 char *end = buf + size;
1828 struct lcfg_type_data *ldata;
1830 LASSERT(rec->lrh_type == OBD_CFG_REC);
1831 rc = lustre_cfg_sanity_check(lcfg, rec->lrh_len);
1835 ldata = lcfg_cmd2data(lcfg->lcfg_command);
1839 if (lcfg->lcfg_command == LCFG_MARKER)
1842 /* form YAML entity */
1843 ptr += snprintf(ptr, end - ptr, "- { event: %s", ldata->ltd_name);
1845 if (lcfg->lcfg_flags)
1846 ptr += snprintf(ptr, end - ptr, ", flags: %#08x",
1849 ptr += snprintf(ptr, end - ptr, ", num: %#08x",
1852 ptr += snprintf(ptr, end - ptr, ", nid: %s("LPX64")",
1853 libcfs_nid2str(lcfg->lcfg_nid),
1856 if (LUSTRE_CFG_BUFLEN(lcfg, 0) > 0)
1857 ptr += snprintf(ptr, end - ptr, ", device: %s",
1858 lustre_cfg_string(lcfg, 0));
1860 for (i = 1; i < lcfg->lcfg_bufcount; i++) {
1861 if (LUSTRE_CFG_BUFLEN(lcfg, i) > 0)
1862 ptr += snprintf(ptr, end - ptr, ", %s: %s",
1863 ldata->ltd_bufs[i - 1],
1864 lustre_cfg_string(lcfg, i));
1867 ptr += snprintf(ptr, end - ptr, " }\n");
1868 /* return consumed bytes */
1874 * parse config record and output dump in supplied buffer.
1875 * This is separated from class_config_dump_handler() to use
1876 * for ioctl needs as well
1878 int class_config_parse_rec(struct llog_rec_hdr *rec, char *buf, int size)
1880 struct lustre_cfg *lcfg = (struct lustre_cfg *)(rec + 1);
1882 char *end = buf + size;
1887 LASSERT(rec->lrh_type == OBD_CFG_REC);
1888 rc = lustre_cfg_sanity_check(lcfg, rec->lrh_len);
1892 ptr += snprintf(ptr, end-ptr, "cmd=%05x ", lcfg->lcfg_command);
1893 if (lcfg->lcfg_flags)
1894 ptr += snprintf(ptr, end-ptr, "flags=%#08x ",
1898 ptr += snprintf(ptr, end-ptr, "num=%#08x ", lcfg->lcfg_num);
1901 ptr += snprintf(ptr, end-ptr, "nid=%s("LPX64")\n ",
1902 libcfs_nid2str(lcfg->lcfg_nid),
1905 if (lcfg->lcfg_command == LCFG_MARKER) {
1906 struct cfg_marker *marker = lustre_cfg_buf(lcfg, 1);
1908 ptr += snprintf(ptr, end-ptr, "marker=%d(%#x)%s '%s'",
1909 marker->cm_step, marker->cm_flags,
1910 marker->cm_tgtname, marker->cm_comment);
1914 for (i = 0; i < lcfg->lcfg_bufcount; i++) {
1915 ptr += snprintf(ptr, end-ptr, "%d:%s ", i,
1916 lustre_cfg_string(lcfg, i));
1919 ptr += snprintf(ptr, end - ptr, "\n");
1920 /* return consumed bytes */
1925 int class_config_dump_handler(const struct lu_env *env,
1926 struct llog_handle *handle,
1927 struct llog_rec_hdr *rec, void *data)
1934 OBD_ALLOC(outstr, 256);
1938 if (rec->lrh_type == OBD_CFG_REC) {
1939 class_config_parse_rec(rec, outstr, 256);
1940 LCONSOLE(D_WARNING, " %s\n", outstr);
1942 LCONSOLE(D_WARNING, "unhandled lrh_type: %#x\n", rec->lrh_type);
1946 OBD_FREE(outstr, 256);
1950 int class_config_dump_llog(const struct lu_env *env, struct llog_ctxt *ctxt,
1951 char *name, struct config_llog_instance *cfg)
1953 struct llog_handle *llh;
1958 LCONSOLE_INFO("Dumping config log %s\n", name);
1960 rc = llog_open(env, ctxt, &llh, NULL, name, LLOG_OPEN_EXISTS);
1964 rc = llog_init_handle(env, llh, LLOG_F_IS_PLAIN, NULL);
1966 GOTO(parse_out, rc);
1968 rc = llog_process(env, llh, class_config_dump_handler, cfg, NULL);
1970 llog_close(env, llh);
1972 LCONSOLE_INFO("End config log %s\n", name);
1975 EXPORT_SYMBOL(class_config_dump_llog);
1977 /** Call class_cleanup and class_detach.
1978 * "Manual" only in the sense that we're faking lcfg commands.
1980 int class_manual_cleanup(struct obd_device *obd)
1983 struct lustre_cfg *lcfg;
1984 struct lustre_cfg_bufs bufs;
1989 CERROR("empty cleanup\n");
1998 CDEBUG(D_CONFIG, "Manual cleanup of %s (flags='%s')\n",
1999 obd->obd_name, flags);
2001 lustre_cfg_bufs_reset(&bufs, obd->obd_name);
2002 lustre_cfg_bufs_set_string(&bufs, 1, flags);
2003 lcfg = lustre_cfg_new(LCFG_CLEANUP, &bufs);
2007 rc = class_process_config(lcfg);
2009 CERROR("cleanup failed %d: %s\n", rc, obd->obd_name);
2013 /* the lcfg is almost the same for both ops */
2014 lcfg->lcfg_command = LCFG_DETACH;
2015 rc = class_process_config(lcfg);
2017 CERROR("detach failed %d: %s\n", rc, obd->obd_name);
2019 lustre_cfg_free(lcfg);
2022 EXPORT_SYMBOL(class_manual_cleanup);
2025 * uuid<->export lustre hash operations
2029 uuid_hash(cfs_hash_t *hs, const void *key, unsigned mask)
2031 return cfs_hash_djb2_hash(((struct obd_uuid *)key)->uuid,
2032 sizeof(((struct obd_uuid *)key)->uuid), mask);
2036 uuid_key(cfs_hlist_node_t *hnode)
2038 struct obd_export *exp;
2040 exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash);
2042 return &exp->exp_client_uuid;
2046 * NOTE: It is impossible to find an export that is in failed
2047 * state with this function
2050 uuid_keycmp(const void *key, cfs_hlist_node_t *hnode)
2052 struct obd_export *exp;
2055 exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash);
2057 return obd_uuid_equals(key, &exp->exp_client_uuid) &&
2062 uuid_export_object(cfs_hlist_node_t *hnode)
2064 return cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash);
2068 uuid_export_get(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
2070 struct obd_export *exp;
2072 exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash);
2073 class_export_get(exp);
2077 uuid_export_put_locked(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
2079 struct obd_export *exp;
2081 exp = cfs_hlist_entry(hnode, struct obd_export, exp_uuid_hash);
2082 class_export_put(exp);
2085 static cfs_hash_ops_t uuid_hash_ops = {
2086 .hs_hash = uuid_hash,
2088 .hs_keycmp = uuid_keycmp,
2089 .hs_object = uuid_export_object,
2090 .hs_get = uuid_export_get,
2091 .hs_put_locked = uuid_export_put_locked,
2096 * nid<->export hash operations
2100 nid_hash(cfs_hash_t *hs, const void *key, unsigned mask)
2102 return cfs_hash_djb2_hash(key, sizeof(lnet_nid_t), mask);
2106 nid_key(cfs_hlist_node_t *hnode)
2108 struct obd_export *exp;
2110 exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash);
2112 RETURN(&exp->exp_connection->c_peer.nid);
2116 * NOTE: It is impossible to find an export that is in failed
2117 * state with this function
2120 nid_kepcmp(const void *key, cfs_hlist_node_t *hnode)
2122 struct obd_export *exp;
2125 exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash);
2127 RETURN(exp->exp_connection->c_peer.nid == *(lnet_nid_t *)key &&
2132 nid_export_object(cfs_hlist_node_t *hnode)
2134 return cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash);
2138 nid_export_get(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
2140 struct obd_export *exp;
2142 exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash);
2143 class_export_get(exp);
2147 nid_export_put_locked(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
2149 struct obd_export *exp;
2151 exp = cfs_hlist_entry(hnode, struct obd_export, exp_nid_hash);
2152 class_export_put(exp);
2155 static cfs_hash_ops_t nid_hash_ops = {
2156 .hs_hash = nid_hash,
2158 .hs_keycmp = nid_kepcmp,
2159 .hs_object = nid_export_object,
2160 .hs_get = nid_export_get,
2161 .hs_put_locked = nid_export_put_locked,
2166 * nid<->nidstats hash operations
2170 nidstats_key(cfs_hlist_node_t *hnode)
2172 struct nid_stat *ns;
2174 ns = cfs_hlist_entry(hnode, struct nid_stat, nid_hash);
2180 nidstats_keycmp(const void *key, cfs_hlist_node_t *hnode)
2182 return *(lnet_nid_t *)nidstats_key(hnode) == *(lnet_nid_t *)key;
2186 nidstats_object(cfs_hlist_node_t *hnode)
2188 return cfs_hlist_entry(hnode, struct nid_stat, nid_hash);
2192 nidstats_get(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
2194 struct nid_stat *ns;
2196 ns = cfs_hlist_entry(hnode, struct nid_stat, nid_hash);
2201 nidstats_put_locked(cfs_hash_t *hs, cfs_hlist_node_t *hnode)
2203 struct nid_stat *ns;
2205 ns = cfs_hlist_entry(hnode, struct nid_stat, nid_hash);
2209 static cfs_hash_ops_t nid_stat_hash_ops = {
2210 .hs_hash = nid_hash,
2211 .hs_key = nidstats_key,
2212 .hs_keycmp = nidstats_keycmp,
2213 .hs_object = nidstats_object,
2214 .hs_get = nidstats_get,
2215 .hs_put_locked = nidstats_put_locked,