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, 2012, 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
42 #include <obd_class.h>
43 #include <linux/string.h>
44 #include <lustre_log.h>
45 #include <lprocfs_status.h>
46 #include <lustre_param.h>
48 #include "llog_internal.h"
50 static cfs_hash_ops_t uuid_hash_ops
;
51 static cfs_hash_ops_t nid_hash_ops
;
52 static cfs_hash_ops_t nid_stat_hash_ops
;
54 /*********** string parsing utils *********/
56 /* returns 0 if we find this key in the buffer, else 1 */
57 int class_find_param(char *buf
, char *key
, char **valp
)
64 if ((ptr
= strstr(buf
, key
)) == NULL
)
68 *valp
= ptr
+ strlen(key
);
72 EXPORT_SYMBOL(class_find_param
);
75 * Check whether the proc parameter \a param is an old parameter or not from
76 * the array \a ptr which contains the mapping from old parameters to new ones.
77 * If it's an old one, then return the pointer to the cfg_interop_param struc-
78 * ture which contains both the old and new parameters.
80 * \param param proc parameter
81 * \param ptr an array which contains the mapping from
82 * old parameters to new ones
84 * \retval valid-pointer pointer to the cfg_interop_param structure
85 * which contains the old and new parameters
86 * \retval NULL \a param or \a ptr is NULL,
87 * or \a param is not an old parameter
89 struct cfg_interop_param
*class_find_old_param(const char *param
,
90 struct cfg_interop_param
*ptr
)
95 if (param
== NULL
|| ptr
== NULL
)
98 value
= strchr(param
, '=');
100 name_len
= strlen(param
);
102 name_len
= value
- param
;
104 while (ptr
->old_param
!= NULL
) {
105 if (strncmp(param
, ptr
->old_param
, name_len
) == 0 &&
106 name_len
== strlen(ptr
->old_param
))
113 EXPORT_SYMBOL(class_find_old_param
);
116 * Finds a parameter in \a params and copies it to \a copy.
118 * Leading spaces are skipped. Next space or end of string is the
119 * parameter terminator with the exception that spaces inside single or double
120 * quotes get included into a parameter. The parameter is copied into \a copy
121 * which has to be allocated big enough by a caller, quotes are stripped in
122 * the copy and the copy is terminated by 0.
124 * On return \a params is set to next parameter or to NULL if last
125 * parameter is returned.
127 * \retval 0 if parameter is returned in \a copy
128 * \retval 1 otherwise
129 * \retval -EINVAL if unbalanced quota is found
131 int class_get_next_param(char **params
, char *copy
)
146 q1
= strpbrk(str
, " '\"");
149 memcpy(copy
, str
, len
);
156 memcpy(copy
, str
, len
);
162 memcpy(copy
, str
, len
);
165 /* search for the matching closing quote */
167 q2
= strchr(str
, *q1
);
169 CERROR("Unbalanced quota in parameters: \"%s\"\n",
174 memcpy(copy
, str
, len
);
180 EXPORT_SYMBOL(class_get_next_param
);
182 /* returns 0 if this is the first key in the buffer, else 1.
183 valp points to first char after key. */
184 int class_match_param(char *buf
, char *key
, char **valp
)
189 if (memcmp(buf
, key
, strlen(key
)) != 0)
193 *valp
= buf
+ strlen(key
);
197 EXPORT_SYMBOL(class_match_param
);
199 static int parse_nid(char *buf
, void *value
, int quiet
)
201 lnet_nid_t
*nid
= (lnet_nid_t
*)value
;
203 *nid
= libcfs_str2nid(buf
);
204 if (*nid
!= LNET_NID_ANY
)
208 LCONSOLE_ERROR_MSG(0x159, "Can't parse NID '%s'\n", buf
);
212 static int parse_net(char *buf
, void *value
)
214 __u32
*net
= (__u32
*)value
;
216 *net
= libcfs_str2net(buf
);
217 CDEBUG(D_INFO
, "Net %s\n", libcfs_net2str(*net
));
229 endh is set to next separator */
230 static int class_parse_value(char *buf
, int opc
, void *value
, char **endh
,
239 while (*buf
== ',' || *buf
== ':')
241 if (*buf
== ' ' || *buf
== '/' || *buf
== '\0')
244 /* nid separators or end of nids */
245 endp
= strpbrk(buf
, ",: /");
247 endp
= buf
+ strlen(buf
);
254 case CLASS_PARSE_NID
:
255 rc
= parse_nid(buf
, value
, quiet
);
257 case CLASS_PARSE_NET
:
258 rc
= parse_net(buf
, value
);
269 int class_parse_nid(char *buf
, lnet_nid_t
*nid
, char **endh
)
271 return class_parse_value(buf
, CLASS_PARSE_NID
, (void *)nid
, endh
, 0);
273 EXPORT_SYMBOL(class_parse_nid
);
275 int class_parse_nid_quiet(char *buf
, lnet_nid_t
*nid
, char **endh
)
277 return class_parse_value(buf
, CLASS_PARSE_NID
, (void *)nid
, endh
, 1);
279 EXPORT_SYMBOL(class_parse_nid_quiet
);
281 int class_parse_net(char *buf
, __u32
*net
, char **endh
)
283 return class_parse_value(buf
, CLASS_PARSE_NET
, (void *)net
, endh
, 0);
285 EXPORT_SYMBOL(class_parse_net
);
287 /* 1 param contains key and match
288 * 0 param contains key and not match
289 * -1 param does not contain key
291 int class_match_nid(char *buf
, char *key
, lnet_nid_t nid
)
296 while (class_find_param(buf
, key
, &buf
) == 0) {
297 /* please restrict to the nids pertaining to
298 * the specified nids */
299 while (class_parse_nid(buf
, &tmp
, &buf
) == 0) {
307 EXPORT_SYMBOL(class_match_nid
);
309 int class_match_net(char *buf
, char *key
, __u32 net
)
314 while (class_find_param(buf
, key
, &buf
) == 0) {
315 /* please restrict to the nids pertaining to
316 * the specified networks */
317 while (class_parse_net(buf
, &tmp
, &buf
) == 0) {
325 EXPORT_SYMBOL(class_match_net
);
327 /********************** class fns **********************/
330 * Create a new obd device and set the type, name and uuid. If successful,
331 * the new device can be accessed by either name or uuid.
333 int class_attach(struct lustre_cfg
*lcfg
)
335 struct obd_device
*obd
= NULL
;
336 char *typename
, *name
, *uuid
;
339 if (!LUSTRE_CFG_BUFLEN(lcfg
, 1)) {
340 CERROR("No type passed!\n");
343 typename
= lustre_cfg_string(lcfg
, 1);
345 if (!LUSTRE_CFG_BUFLEN(lcfg
, 0)) {
346 CERROR("No name passed!\n");
349 name
= lustre_cfg_string(lcfg
, 0);
351 if (!LUSTRE_CFG_BUFLEN(lcfg
, 2)) {
352 CERROR("No UUID passed!\n");
355 uuid
= lustre_cfg_string(lcfg
, 2);
357 CDEBUG(D_IOCTL
, "attach type %s name: %s uuid: %s\n",
358 MKSTR(typename
), MKSTR(name
), MKSTR(uuid
));
360 obd
= class_newdev(typename
, name
);
362 /* Already exists or out of obds */
365 CERROR("Cannot create device %s of type %s : %d\n",
369 LASSERTF(obd
!= NULL
, "Cannot get obd device %s of type %s\n",
371 LASSERTF(obd
->obd_magic
== OBD_DEVICE_MAGIC
,
372 "obd %p obd_magic %08X != %08X\n",
373 obd
, obd
->obd_magic
, OBD_DEVICE_MAGIC
);
374 LASSERTF(strncmp(obd
->obd_name
, name
, strlen(name
)) == 0,
375 "%p obd_name %s != %s\n", obd
, obd
->obd_name
, name
);
377 rwlock_init(&obd
->obd_pool_lock
);
378 obd
->obd_pool_limit
= 0;
379 obd
->obd_pool_slv
= 0;
381 INIT_LIST_HEAD(&obd
->obd_exports
);
382 INIT_LIST_HEAD(&obd
->obd_unlinked_exports
);
383 INIT_LIST_HEAD(&obd
->obd_delayed_exports
);
384 INIT_LIST_HEAD(&obd
->obd_exports_timed
);
385 INIT_LIST_HEAD(&obd
->obd_nid_stats
);
386 spin_lock_init(&obd
->obd_nid_lock
);
387 spin_lock_init(&obd
->obd_dev_lock
);
388 mutex_init(&obd
->obd_dev_mutex
);
389 spin_lock_init(&obd
->obd_osfs_lock
);
390 /* obd->obd_osfs_age must be set to a value in the distant
391 * past to guarantee a fresh statfs is fetched on mount. */
392 obd
->obd_osfs_age
= cfs_time_shift_64(-1000);
394 /* XXX belongs in setup not attach */
395 init_rwsem(&obd
->obd_observer_link_sem
);
397 cfs_init_timer(&obd
->obd_recovery_timer
);
398 spin_lock_init(&obd
->obd_recovery_task_lock
);
399 init_waitqueue_head(&obd
->obd_next_transno_waitq
);
400 init_waitqueue_head(&obd
->obd_evict_inprogress_waitq
);
401 INIT_LIST_HEAD(&obd
->obd_req_replay_queue
);
402 INIT_LIST_HEAD(&obd
->obd_lock_replay_queue
);
403 INIT_LIST_HEAD(&obd
->obd_final_req_queue
);
404 INIT_LIST_HEAD(&obd
->obd_evict_list
);
406 llog_group_init(&obd
->obd_olg
, FID_SEQ_LLOG
);
408 obd
->obd_conn_inprogress
= 0;
411 if (len
>= sizeof(obd
->obd_uuid
)) {
412 CERROR("uuid must be < %d bytes long\n",
413 (int)sizeof(obd
->obd_uuid
));
414 GOTO(out
, rc
= -EINVAL
);
416 memcpy(obd
->obd_uuid
.uuid
, uuid
, len
);
419 if (OBP(obd
, attach
)) {
420 rc
= OBP(obd
,attach
)(obd
, sizeof *lcfg
, lcfg
);
422 GOTO(out
, rc
= -EINVAL
);
425 /* Detach drops this */
426 spin_lock(&obd
->obd_dev_lock
);
427 atomic_set(&obd
->obd_refcount
, 1);
428 spin_unlock(&obd
->obd_dev_lock
);
429 lu_ref_init(&obd
->obd_reference
);
430 lu_ref_add(&obd
->obd_reference
, "attach", obd
);
432 obd
->obd_attached
= 1;
433 CDEBUG(D_IOCTL
, "OBD: dev %d attached type %s with refcount %d\n",
434 obd
->obd_minor
, typename
, atomic_read(&obd
->obd_refcount
));
438 class_release_dev(obd
);
442 EXPORT_SYMBOL(class_attach
);
444 /** Create hashes, self-export, and call type-specific setup.
445 * Setup is effectively the "start this obd" call.
447 int class_setup(struct obd_device
*obd
, struct lustre_cfg
*lcfg
)
450 struct obd_export
*exp
;
452 LASSERT(obd
!= NULL
);
453 LASSERTF(obd
== class_num2obd(obd
->obd_minor
),
454 "obd %p != obd_devs[%d] %p\n",
455 obd
, obd
->obd_minor
, class_num2obd(obd
->obd_minor
));
456 LASSERTF(obd
->obd_magic
== OBD_DEVICE_MAGIC
,
457 "obd %p obd_magic %08x != %08x\n",
458 obd
, obd
->obd_magic
, OBD_DEVICE_MAGIC
);
460 /* have we attached a type to this device? */
461 if (!obd
->obd_attached
) {
462 CERROR("Device %d not attached\n", obd
->obd_minor
);
466 if (obd
->obd_set_up
) {
467 CERROR("Device %d already setup (type %s)\n",
468 obd
->obd_minor
, obd
->obd_type
->typ_name
);
472 /* is someone else setting us up right now? (attach inits spinlock) */
473 spin_lock(&obd
->obd_dev_lock
);
474 if (obd
->obd_starting
) {
475 spin_unlock(&obd
->obd_dev_lock
);
476 CERROR("Device %d setup in progress (type %s)\n",
477 obd
->obd_minor
, obd
->obd_type
->typ_name
);
480 /* just leave this on forever. I can't use obd_set_up here because
481 other fns check that status, and we're not actually set up yet. */
482 obd
->obd_starting
= 1;
483 obd
->obd_uuid_hash
= NULL
;
484 obd
->obd_nid_hash
= NULL
;
485 obd
->obd_nid_stats_hash
= NULL
;
486 spin_unlock(&obd
->obd_dev_lock
);
488 /* create an uuid-export lustre hash */
489 obd
->obd_uuid_hash
= cfs_hash_create("UUID_HASH",
492 HASH_UUID_BKT_BITS
, 0,
495 &uuid_hash_ops
, CFS_HASH_DEFAULT
);
496 if (!obd
->obd_uuid_hash
)
497 GOTO(err_hash
, err
= -ENOMEM
);
499 /* create a nid-export lustre hash */
500 obd
->obd_nid_hash
= cfs_hash_create("NID_HASH",
503 HASH_NID_BKT_BITS
, 0,
506 &nid_hash_ops
, CFS_HASH_DEFAULT
);
507 if (!obd
->obd_nid_hash
)
508 GOTO(err_hash
, err
= -ENOMEM
);
510 /* create a nid-stats lustre hash */
511 obd
->obd_nid_stats_hash
= cfs_hash_create("NID_STATS",
512 HASH_NID_STATS_CUR_BITS
,
513 HASH_NID_STATS_MAX_BITS
,
514 HASH_NID_STATS_BKT_BITS
, 0,
517 &nid_stat_hash_ops
, CFS_HASH_DEFAULT
);
518 if (!obd
->obd_nid_stats_hash
)
519 GOTO(err_hash
, err
= -ENOMEM
);
521 exp
= class_new_export(obd
, &obd
->obd_uuid
);
523 GOTO(err_hash
, err
= PTR_ERR(exp
));
525 obd
->obd_self_export
= exp
;
526 list_del_init(&exp
->exp_obd_chain_timed
);
527 class_export_put(exp
);
529 err
= obd_setup(obd
, lcfg
);
535 spin_lock(&obd
->obd_dev_lock
);
536 /* cleanup drops this */
537 class_incref(obd
, "setup", obd
);
538 spin_unlock(&obd
->obd_dev_lock
);
540 CDEBUG(D_IOCTL
, "finished setup of obd %s (uuid %s)\n",
541 obd
->obd_name
, obd
->obd_uuid
.uuid
);
545 if (obd
->obd_self_export
) {
546 class_unlink_export(obd
->obd_self_export
);
547 obd
->obd_self_export
= NULL
;
550 if (obd
->obd_uuid_hash
) {
551 cfs_hash_putref(obd
->obd_uuid_hash
);
552 obd
->obd_uuid_hash
= NULL
;
554 if (obd
->obd_nid_hash
) {
555 cfs_hash_putref(obd
->obd_nid_hash
);
556 obd
->obd_nid_hash
= NULL
;
558 if (obd
->obd_nid_stats_hash
) {
559 cfs_hash_putref(obd
->obd_nid_stats_hash
);
560 obd
->obd_nid_stats_hash
= NULL
;
562 obd
->obd_starting
= 0;
563 CERROR("setup %s failed (%d)\n", obd
->obd_name
, err
);
566 EXPORT_SYMBOL(class_setup
);
568 /** We have finished using this obd and are ready to destroy it.
569 * There can be no more references to this obd.
571 int class_detach(struct obd_device
*obd
, struct lustre_cfg
*lcfg
)
573 if (obd
->obd_set_up
) {
574 CERROR("OBD device %d still set up\n", obd
->obd_minor
);
578 spin_lock(&obd
->obd_dev_lock
);
579 if (!obd
->obd_attached
) {
580 spin_unlock(&obd
->obd_dev_lock
);
581 CERROR("OBD device %d not attached\n", obd
->obd_minor
);
584 obd
->obd_attached
= 0;
585 spin_unlock(&obd
->obd_dev_lock
);
587 CDEBUG(D_IOCTL
, "detach on obd %s (uuid %s)\n",
588 obd
->obd_name
, obd
->obd_uuid
.uuid
);
590 class_decref(obd
, "attach", obd
);
593 EXPORT_SYMBOL(class_detach
);
595 /** Start shutting down the obd. There may be in-progess ops when
596 * this is called. We tell them to start shutting down with a call
597 * to class_disconnect_exports().
599 int class_cleanup(struct obd_device
*obd
, struct lustre_cfg
*lcfg
)
604 OBD_RACE(OBD_FAIL_LDLM_RECOV_CLIENTS
);
606 if (!obd
->obd_set_up
) {
607 CERROR("Device %d not setup\n", obd
->obd_minor
);
611 spin_lock(&obd
->obd_dev_lock
);
612 if (obd
->obd_stopping
) {
613 spin_unlock(&obd
->obd_dev_lock
);
614 CERROR("OBD %d already stopping\n", obd
->obd_minor
);
617 /* Leave this on forever */
618 obd
->obd_stopping
= 1;
620 /* wait for already-arrived-connections to finish. */
621 while (obd
->obd_conn_inprogress
> 0) {
622 spin_unlock(&obd
->obd_dev_lock
);
626 spin_lock(&obd
->obd_dev_lock
);
628 spin_unlock(&obd
->obd_dev_lock
);
630 if (lcfg
->lcfg_bufcount
>= 2 && LUSTRE_CFG_BUFLEN(lcfg
, 1) > 0) {
631 for (flag
= lustre_cfg_string(lcfg
, 1); *flag
!= 0; flag
++)
637 LCONSOLE_WARN("Failing over %s\n",
640 obd
->obd_no_transno
= 1;
641 obd
->obd_no_recov
= 1;
642 if (OBP(obd
, iocontrol
)) {
643 obd_iocontrol(OBD_IOC_SYNC
,
644 obd
->obd_self_export
,
649 CERROR("Unrecognised flag '%c'\n", *flag
);
653 LASSERT(obd
->obd_self_export
);
655 /* The three references that should be remaining are the
656 * obd_self_export and the attach and setup references. */
657 if (atomic_read(&obd
->obd_refcount
) > 3) {
658 /* refcounf - 3 might be the number of real exports
659 (excluding self export). But class_incref is called
660 by other things as well, so don't count on it. */
661 CDEBUG(D_IOCTL
, "%s: forcing exports to disconnect: %d\n",
662 obd
->obd_name
, atomic_read(&obd
->obd_refcount
) - 3);
663 dump_exports(obd
, 0);
664 class_disconnect_exports(obd
);
667 /* Precleanup, we must make sure all exports get destroyed. */
668 err
= obd_precleanup(obd
, OBD_CLEANUP_EXPORTS
);
670 CERROR("Precleanup %s returned %d\n",
673 /* destroy an uuid-export hash body */
674 if (obd
->obd_uuid_hash
) {
675 cfs_hash_putref(obd
->obd_uuid_hash
);
676 obd
->obd_uuid_hash
= NULL
;
679 /* destroy a nid-export hash body */
680 if (obd
->obd_nid_hash
) {
681 cfs_hash_putref(obd
->obd_nid_hash
);
682 obd
->obd_nid_hash
= NULL
;
685 /* destroy a nid-stats hash body */
686 if (obd
->obd_nid_stats_hash
) {
687 cfs_hash_putref(obd
->obd_nid_stats_hash
);
688 obd
->obd_nid_stats_hash
= NULL
;
691 class_decref(obd
, "setup", obd
);
696 EXPORT_SYMBOL(class_cleanup
);
698 struct obd_device
*class_incref(struct obd_device
*obd
,
699 const char *scope
, const void *source
)
701 lu_ref_add_atomic(&obd
->obd_reference
, scope
, source
);
702 atomic_inc(&obd
->obd_refcount
);
703 CDEBUG(D_INFO
, "incref %s (%p) now %d\n", obd
->obd_name
, obd
,
704 atomic_read(&obd
->obd_refcount
));
708 EXPORT_SYMBOL(class_incref
);
710 void class_decref(struct obd_device
*obd
, const char *scope
, const void *source
)
715 spin_lock(&obd
->obd_dev_lock
);
716 atomic_dec(&obd
->obd_refcount
);
717 refs
= atomic_read(&obd
->obd_refcount
);
718 spin_unlock(&obd
->obd_dev_lock
);
719 lu_ref_del(&obd
->obd_reference
, scope
, source
);
721 CDEBUG(D_INFO
, "Decref %s (%p) now %d\n", obd
->obd_name
, obd
, refs
);
723 if ((refs
== 1) && obd
->obd_stopping
) {
724 /* All exports have been destroyed; there should
725 be no more in-progress ops by this point.*/
727 spin_lock(&obd
->obd_self_export
->exp_lock
);
728 obd
->obd_self_export
->exp_flags
|= exp_flags_from_obd(obd
);
729 spin_unlock(&obd
->obd_self_export
->exp_lock
);
731 /* note that we'll recurse into class_decref again */
732 class_unlink_export(obd
->obd_self_export
);
737 CDEBUG(D_CONFIG
, "finishing cleanup of obd %s (%s)\n",
738 obd
->obd_name
, obd
->obd_uuid
.uuid
);
739 LASSERT(!obd
->obd_attached
);
740 if (obd
->obd_stopping
) {
741 /* If we're not stopping, we were never set up */
742 err
= obd_cleanup(obd
);
744 CERROR("Cleanup %s returned %d\n",
747 if (OBP(obd
, detach
)) {
748 err
= OBP(obd
, detach
)(obd
);
750 CERROR("Detach returned %d\n", err
);
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
;
766 if (LUSTRE_CFG_BUFLEN(lcfg
, 1) < 1 ||
767 LUSTRE_CFG_BUFLEN(lcfg
, 1) > sizeof(struct obd_uuid
)) {
768 CERROR("invalid conn_uuid\n");
771 if (strcmp(obd
->obd_type
->typ_name
, LUSTRE_MDC_NAME
) &&
772 strcmp(obd
->obd_type
->typ_name
, LUSTRE_OSC_NAME
) &&
773 strcmp(obd
->obd_type
->typ_name
, LUSTRE_OSP_NAME
) &&
774 strcmp(obd
->obd_type
->typ_name
, LUSTRE_LWP_NAME
) &&
775 strcmp(obd
->obd_type
->typ_name
, LUSTRE_MGC_NAME
)) {
776 CERROR("can't add connection on non-client dev\n");
780 imp
= obd
->u
.cli
.cl_import
;
782 CERROR("try to add conn on immature client dev\n");
786 obd_str2uuid(&uuid
, lustre_cfg_string(lcfg
, 1));
787 rc
= obd_add_conn(imp
, &uuid
, lcfg
->lcfg_num
);
791 EXPORT_SYMBOL(class_add_conn
);
793 /** Remove a failover nid location.
795 int class_del_conn(struct obd_device
*obd
, struct lustre_cfg
*lcfg
)
797 struct obd_import
*imp
;
798 struct obd_uuid uuid
;
801 if (LUSTRE_CFG_BUFLEN(lcfg
, 1) < 1 ||
802 LUSTRE_CFG_BUFLEN(lcfg
, 1) > sizeof(struct obd_uuid
)) {
803 CERROR("invalid conn_uuid\n");
806 if (strcmp(obd
->obd_type
->typ_name
, LUSTRE_MDC_NAME
) &&
807 strcmp(obd
->obd_type
->typ_name
, LUSTRE_OSC_NAME
)) {
808 CERROR("can't del connection on non-client dev\n");
812 imp
= obd
->u
.cli
.cl_import
;
814 CERROR("try to del conn on immature client dev\n");
818 obd_str2uuid(&uuid
, lustre_cfg_string(lcfg
, 1));
819 rc
= obd_del_conn(imp
, &uuid
);
824 LIST_HEAD(lustre_profile_list
);
826 struct lustre_profile
*class_get_profile(const char * prof
)
828 struct lustre_profile
*lprof
;
830 list_for_each_entry(lprof
, &lustre_profile_list
, lp_list
) {
831 if (!strcmp(lprof
->lp_profile
, prof
)) {
837 EXPORT_SYMBOL(class_get_profile
);
839 /** Create a named "profile".
840 * This defines the mdc and osc names to use for a client.
841 * This also is used to define the lov to be used by a mdt.
843 int class_add_profile(int proflen
, char *prof
, int osclen
, char *osc
,
844 int mdclen
, char *mdc
)
846 struct lustre_profile
*lprof
;
849 CDEBUG(D_CONFIG
, "Add profile %s\n", prof
);
851 OBD_ALLOC(lprof
, sizeof(*lprof
));
854 INIT_LIST_HEAD(&lprof
->lp_list
);
856 LASSERT(proflen
== (strlen(prof
) + 1));
857 OBD_ALLOC(lprof
->lp_profile
, proflen
);
858 if (lprof
->lp_profile
== NULL
)
859 GOTO(out
, err
= -ENOMEM
);
860 memcpy(lprof
->lp_profile
, prof
, proflen
);
862 LASSERT(osclen
== (strlen(osc
) + 1));
863 OBD_ALLOC(lprof
->lp_dt
, osclen
);
864 if (lprof
->lp_dt
== NULL
)
865 GOTO(out
, err
= -ENOMEM
);
866 memcpy(lprof
->lp_dt
, osc
, osclen
);
869 LASSERT(mdclen
== (strlen(mdc
) + 1));
870 OBD_ALLOC(lprof
->lp_md
, mdclen
);
871 if (lprof
->lp_md
== NULL
)
872 GOTO(out
, err
= -ENOMEM
);
873 memcpy(lprof
->lp_md
, mdc
, mdclen
);
876 list_add(&lprof
->lp_list
, &lustre_profile_list
);
881 OBD_FREE(lprof
->lp_md
, mdclen
);
883 OBD_FREE(lprof
->lp_dt
, osclen
);
884 if (lprof
->lp_profile
)
885 OBD_FREE(lprof
->lp_profile
, proflen
);
886 OBD_FREE(lprof
, sizeof(*lprof
));
890 void class_del_profile(const char *prof
)
892 struct lustre_profile
*lprof
;
894 CDEBUG(D_CONFIG
, "Del profile %s\n", prof
);
896 lprof
= class_get_profile(prof
);
898 list_del(&lprof
->lp_list
);
899 OBD_FREE(lprof
->lp_profile
, strlen(lprof
->lp_profile
) + 1);
900 OBD_FREE(lprof
->lp_dt
, strlen(lprof
->lp_dt
) + 1);
902 OBD_FREE(lprof
->lp_md
, strlen(lprof
->lp_md
) + 1);
903 OBD_FREE(lprof
, sizeof *lprof
);
906 EXPORT_SYMBOL(class_del_profile
);
909 void class_del_profiles(void)
911 struct lustre_profile
*lprof
, *n
;
913 list_for_each_entry_safe(lprof
, n
, &lustre_profile_list
, lp_list
) {
914 list_del(&lprof
->lp_list
);
915 OBD_FREE(lprof
->lp_profile
, strlen(lprof
->lp_profile
) + 1);
916 OBD_FREE(lprof
->lp_dt
, strlen(lprof
->lp_dt
) + 1);
918 OBD_FREE(lprof
->lp_md
, strlen(lprof
->lp_md
) + 1);
919 OBD_FREE(lprof
, sizeof *lprof
);
922 EXPORT_SYMBOL(class_del_profiles
);
924 static int class_set_global(char *ptr
, int val
, struct lustre_cfg
*lcfg
)
926 if (class_match_param(ptr
, PARAM_AT_MIN
, NULL
) == 0)
928 else if (class_match_param(ptr
, PARAM_AT_MAX
, NULL
) == 0)
930 else if (class_match_param(ptr
, PARAM_AT_EXTRA
, NULL
) == 0)
932 else if (class_match_param(ptr
, PARAM_AT_EARLY_MARGIN
, NULL
) == 0)
933 at_early_margin
= val
;
934 else if (class_match_param(ptr
, PARAM_AT_HISTORY
, NULL
) == 0)
936 else if (class_match_param(ptr
, PARAM_JOBID_VAR
, NULL
) == 0)
937 strlcpy(obd_jobid_var
, lustre_cfg_string(lcfg
, 2),
938 JOBSTATS_JOBID_VAR_MAX_LEN
+ 1);
942 CDEBUG(D_IOCTL
, "global %s = %d\n", ptr
, val
);
947 /* We can't call ll_process_config or lquota_process_config directly because
948 * it lives in a module that must be loaded after this one. */
949 static int (*client_process_config
)(struct lustre_cfg
*lcfg
) = NULL
;
950 static int (*quota_process_config
)(struct lustre_cfg
*lcfg
) = NULL
;
952 void lustre_register_client_process_config(int (*cpc
)(struct lustre_cfg
*lcfg
))
954 client_process_config
= cpc
;
956 EXPORT_SYMBOL(lustre_register_client_process_config
);
959 * Rename the proc parameter in \a cfg with a new name \a new_name.
961 * \param cfg config structure which contains the proc parameter
962 * \param new_name new name of the proc parameter
964 * \retval valid-pointer pointer to the newly-allocated config structure
965 * which contains the renamed proc parameter
966 * \retval ERR_PTR(-EINVAL) if \a cfg or \a new_name is NULL, or \a cfg does
967 * not contain a proc parameter
968 * \retval ERR_PTR(-ENOMEM) if memory allocation failure occurs
970 struct lustre_cfg
*lustre_cfg_rename(struct lustre_cfg
*cfg
,
971 const char *new_name
)
973 struct lustre_cfg_bufs
*bufs
= NULL
;
974 struct lustre_cfg
*new_cfg
= NULL
;
976 char *new_param
= NULL
;
981 if (cfg
== NULL
|| new_name
== NULL
)
982 return ERR_PTR(-EINVAL
);
984 param
= lustre_cfg_string(cfg
, 1);
986 return ERR_PTR(-EINVAL
);
988 value
= strchr(param
, '=');
990 name_len
= strlen(param
);
992 name_len
= value
- param
;
994 new_len
= LUSTRE_CFG_BUFLEN(cfg
, 1) + strlen(new_name
) - name_len
;
996 OBD_ALLOC(new_param
, new_len
);
997 if (new_param
== NULL
)
998 return ERR_PTR(-ENOMEM
);
1000 strcpy(new_param
, new_name
);
1002 strcat(new_param
, value
);
1004 OBD_ALLOC_PTR(bufs
);
1006 OBD_FREE(new_param
, new_len
);
1007 return ERR_PTR(-ENOMEM
);
1010 lustre_cfg_bufs_reset(bufs
, NULL
);
1011 lustre_cfg_bufs_init(bufs
, cfg
);
1012 lustre_cfg_bufs_set_string(bufs
, 1, new_param
);
1014 new_cfg
= lustre_cfg_new(cfg
->lcfg_command
, bufs
);
1016 OBD_FREE(new_param
, new_len
);
1018 if (new_cfg
== NULL
)
1019 return ERR_PTR(-ENOMEM
);
1021 new_cfg
->lcfg_num
= cfg
->lcfg_num
;
1022 new_cfg
->lcfg_flags
= cfg
->lcfg_flags
;
1023 new_cfg
->lcfg_nid
= cfg
->lcfg_nid
;
1024 new_cfg
->lcfg_nal
= cfg
->lcfg_nal
;
1028 EXPORT_SYMBOL(lustre_cfg_rename
);
1030 void lustre_register_quota_process_config(int (*qpc
)(struct lustre_cfg
*lcfg
))
1032 quota_process_config
= qpc
;
1034 EXPORT_SYMBOL(lustre_register_quota_process_config
);
1036 /** Process configuration commands given in lustre_cfg form.
1037 * These may come from direct calls (e.g. class_manual_cleanup)
1038 * or processing the config llog, or ioctl from lctl.
1040 int class_process_config(struct lustre_cfg
*lcfg
)
1042 struct obd_device
*obd
;
1045 LASSERT(lcfg
&& !IS_ERR(lcfg
));
1046 CDEBUG(D_IOCTL
, "processing cmd: %x\n", lcfg
->lcfg_command
);
1048 /* Commands that don't need a device */
1049 switch(lcfg
->lcfg_command
) {
1051 err
= class_attach(lcfg
);
1054 case LCFG_ADD_UUID
: {
1055 CDEBUG(D_IOCTL
, "adding mapping from uuid %s to nid "LPX64
1056 " (%s)\n", lustre_cfg_string(lcfg
, 1),
1057 lcfg
->lcfg_nid
, libcfs_nid2str(lcfg
->lcfg_nid
));
1059 err
= class_add_uuid(lustre_cfg_string(lcfg
, 1), lcfg
->lcfg_nid
);
1062 case LCFG_DEL_UUID
: {
1063 CDEBUG(D_IOCTL
, "removing mappings for uuid %s\n",
1064 (lcfg
->lcfg_bufcount
< 2 || LUSTRE_CFG_BUFLEN(lcfg
, 1) == 0)
1065 ? "<all uuids>" : lustre_cfg_string(lcfg
, 1));
1067 err
= class_del_uuid(lustre_cfg_string(lcfg
, 1));
1070 case LCFG_MOUNTOPT
: {
1071 CDEBUG(D_IOCTL
, "mountopt: profile %s osc %s mdc %s\n",
1072 lustre_cfg_string(lcfg
, 1),
1073 lustre_cfg_string(lcfg
, 2),
1074 lustre_cfg_string(lcfg
, 3));
1075 /* set these mount options somewhere, so ll_fill_super
1077 err
= class_add_profile(LUSTRE_CFG_BUFLEN(lcfg
, 1),
1078 lustre_cfg_string(lcfg
, 1),
1079 LUSTRE_CFG_BUFLEN(lcfg
, 2),
1080 lustre_cfg_string(lcfg
, 2),
1081 LUSTRE_CFG_BUFLEN(lcfg
, 3),
1082 lustre_cfg_string(lcfg
, 3));
1085 case LCFG_DEL_MOUNTOPT
: {
1086 CDEBUG(D_IOCTL
, "mountopt: profile %s\n",
1087 lustre_cfg_string(lcfg
, 1));
1088 class_del_profile(lustre_cfg_string(lcfg
, 1));
1091 case LCFG_SET_TIMEOUT
: {
1092 CDEBUG(D_IOCTL
, "changing lustre timeout from %d to %d\n",
1093 obd_timeout
, lcfg
->lcfg_num
);
1094 obd_timeout
= max(lcfg
->lcfg_num
, 1U);
1095 obd_timeout_set
= 1;
1098 case LCFG_SET_LDLM_TIMEOUT
: {
1099 CDEBUG(D_IOCTL
, "changing lustre ldlm_timeout from %d to %d\n",
1100 ldlm_timeout
, lcfg
->lcfg_num
);
1101 ldlm_timeout
= max(lcfg
->lcfg_num
, 1U);
1102 if (ldlm_timeout
>= obd_timeout
)
1103 ldlm_timeout
= max(obd_timeout
/ 3, 1U);
1104 ldlm_timeout_set
= 1;
1107 case LCFG_SET_UPCALL
: {
1108 LCONSOLE_ERROR_MSG(0x15a, "recovery upcall is deprecated\n");
1109 /* COMPAT_146 Don't fail on old configs */
1113 struct cfg_marker
*marker
;
1114 marker
= lustre_cfg_buf(lcfg
, 1);
1115 CDEBUG(D_IOCTL
, "marker %d (%#x) %.16s %s\n", marker
->cm_step
,
1116 marker
->cm_flags
, marker
->cm_tgtname
, marker
->cm_comment
);
1121 /* llite has no obd */
1122 if ((class_match_param(lustre_cfg_string(lcfg
, 1),
1123 PARAM_LLITE
, 0) == 0) &&
1124 client_process_config
) {
1125 err
= (*client_process_config
)(lcfg
);
1127 } else if ((class_match_param(lustre_cfg_string(lcfg
, 1),
1128 PARAM_SYS
, &tmp
) == 0)) {
1129 /* Global param settings */
1130 err
= class_set_global(tmp
, lcfg
->lcfg_num
, lcfg
);
1132 * Client or server should not fail to mount if
1133 * it hits an unknown configuration parameter.
1136 CWARN("Ignoring unknown param %s\n", tmp
);
1139 } else if ((class_match_param(lustre_cfg_string(lcfg
, 1),
1140 PARAM_QUOTA
, &tmp
) == 0) &&
1141 quota_process_config
) {
1142 err
= (*quota_process_config
)(lcfg
);
1150 /* Commands that require a device */
1151 obd
= class_name2obd(lustre_cfg_string(lcfg
, 0));
1153 if (!LUSTRE_CFG_BUFLEN(lcfg
, 0))
1154 CERROR("this lcfg command requires a device name\n");
1156 CERROR("no device for: %s\n",
1157 lustre_cfg_string(lcfg
, 0));
1159 GOTO(out
, err
= -EINVAL
);
1162 switch(lcfg
->lcfg_command
) {
1164 err
= class_setup(obd
, lcfg
);
1168 err
= class_detach(obd
, lcfg
);
1171 case LCFG_CLEANUP
: {
1172 err
= class_cleanup(obd
, lcfg
);
1175 case LCFG_ADD_CONN
: {
1176 err
= class_add_conn(obd
, lcfg
);
1179 case LCFG_DEL_CONN
: {
1180 err
= class_del_conn(obd
, lcfg
);
1183 case LCFG_POOL_NEW
: {
1184 err
= obd_pool_new(obd
, lustre_cfg_string(lcfg
, 2));
1188 case LCFG_POOL_ADD
: {
1189 err
= obd_pool_add(obd
, lustre_cfg_string(lcfg
, 2),
1190 lustre_cfg_string(lcfg
, 3));
1194 case LCFG_POOL_REM
: {
1195 err
= obd_pool_rem(obd
, lustre_cfg_string(lcfg
, 2),
1196 lustre_cfg_string(lcfg
, 3));
1200 case LCFG_POOL_DEL
: {
1201 err
= obd_pool_del(obd
, lustre_cfg_string(lcfg
, 2));
1206 err
= obd_process_config(obd
, sizeof(*lcfg
), lcfg
);
1212 if ((err
< 0) && !(lcfg
->lcfg_command
& LCFG_REQUIRED
)) {
1213 CWARN("Ignoring error %d on optional command %#x\n", err
,
1214 lcfg
->lcfg_command
);
1219 EXPORT_SYMBOL(class_process_config
);
1221 int class_process_proc_param(char *prefix
, struct lprocfs_vars
*lvars
,
1222 struct lustre_cfg
*lcfg
, void *data
)
1224 struct lprocfs_vars
*var
;
1225 struct file fakefile
;
1226 struct seq_file fake_seqfile
;
1228 int i
, keylen
, vallen
;
1229 int matched
= 0, j
= 0;
1233 if (lcfg
->lcfg_command
!= LCFG_PARAM
) {
1234 CERROR("Unknown command: %d\n", lcfg
->lcfg_command
);
1238 /* fake a seq file so that var->fops->write can work... */
1239 fakefile
.private_data
= &fake_seqfile
;
1240 fake_seqfile
.private = data
;
1241 /* e.g. tunefs.lustre --param mdt.group_upcall=foo /r/tmp/lustre-mdt
1242 or lctl conf_param lustre-MDT0000.mdt.group_upcall=bar
1243 or lctl conf_param lustre-OST0000.osc.max_dirty_mb=36 */
1244 for (i
= 1; i
< lcfg
->lcfg_bufcount
; i
++) {
1245 key
= lustre_cfg_buf(lcfg
, i
);
1246 /* Strip off prefix */
1247 class_match_param(key
, prefix
, &key
);
1248 sval
= strchr(key
, '=');
1249 if (!sval
|| (*(sval
+ 1) == 0)) {
1250 CERROR("Can't parse param %s (missing '=')\n", key
);
1251 /* rc = -EINVAL; continue parsing other params */
1254 keylen
= sval
- key
;
1256 vallen
= strlen(sval
);
1259 /* Search proc entries */
1260 while (lvars
[j
].name
) {
1262 if (class_match_param(key
, (char *)var
->name
, 0) == 0 &&
1263 keylen
== strlen(var
->name
)) {
1266 if (var
->fops
&& var
->fops
->write
) {
1270 rc
= (var
->fops
->write
)(&fakefile
, sval
,
1279 /* If the prefix doesn't match, return error so we
1280 can pass it down the stack */
1281 if (strnchr(key
, keylen
, '.'))
1283 CERROR("%s: unknown param %s\n",
1284 (char *)lustre_cfg_string(lcfg
, 0), key
);
1285 /* rc = -EINVAL; continue parsing other params */
1287 } else if (rc
< 0) {
1288 CERROR("writing proc entry %s err %d\n",
1292 CDEBUG(D_CONFIG
, "%s.%.*s: Set parameter %.*s=%s\n",
1293 lustre_cfg_string(lcfg
, 0),
1294 (int)strlen(prefix
) - 1, prefix
,
1295 (int)(sval
- key
- 1), key
, sval
);
1305 EXPORT_SYMBOL(class_process_proc_param
);
1307 extern int lustre_check_exclusion(struct super_block
*sb
, char *svname
);
1309 /** Parse a configuration llog, doing various manipulations on them
1310 * for various reasons, (modifications for compatibility, skip obsolete
1311 * records, change uuids, etc), then class_process_config() resulting
1314 int class_config_llog_handler(const struct lu_env
*env
,
1315 struct llog_handle
*handle
,
1316 struct llog_rec_hdr
*rec
, void *data
)
1318 struct config_llog_instance
*clli
= data
;
1319 int cfg_len
= rec
->lrh_len
;
1320 char *cfg_buf
= (char*) (rec
+ 1);
1323 //class_config_dump_handler(handle, rec, data);
1325 switch (rec
->lrh_type
) {
1327 struct lustre_cfg
*lcfg
, *lcfg_new
;
1328 struct lustre_cfg_bufs bufs
;
1329 char *inst_name
= NULL
;
1331 int inst
= 0, swab
= 0;
1333 lcfg
= (struct lustre_cfg
*)cfg_buf
;
1334 if (lcfg
->lcfg_version
== __swab32(LUSTRE_CFG_VERSION
)) {
1335 lustre_swab_lustre_cfg(lcfg
);
1339 rc
= lustre_cfg_sanity_check(cfg_buf
, cfg_len
);
1343 /* Figure out config state info */
1344 if (lcfg
->lcfg_command
== LCFG_MARKER
) {
1345 struct cfg_marker
*marker
= lustre_cfg_buf(lcfg
, 1);
1346 lustre_swab_cfg_marker(marker
, swab
,
1347 LUSTRE_CFG_BUFLEN(lcfg
, 1));
1348 CDEBUG(D_CONFIG
, "Marker, inst_flg=%#x mark_flg=%#x\n",
1349 clli
->cfg_flags
, marker
->cm_flags
);
1350 if (marker
->cm_flags
& CM_START
) {
1351 /* all previous flags off */
1352 clli
->cfg_flags
= CFG_F_MARKER
;
1353 if (marker
->cm_flags
& CM_SKIP
) {
1354 clli
->cfg_flags
|= CFG_F_SKIP
;
1355 CDEBUG(D_CONFIG
, "SKIP #%d\n",
1357 } else if ((marker
->cm_flags
& CM_EXCLUDE
) ||
1359 lustre_check_exclusion(clli
->cfg_sb
,
1360 marker
->cm_tgtname
))) {
1361 clli
->cfg_flags
|= CFG_F_EXCLUDE
;
1362 CDEBUG(D_CONFIG
, "EXCLUDE %d\n",
1365 } else if (marker
->cm_flags
& CM_END
) {
1366 clli
->cfg_flags
= 0;
1369 /* A config command without a start marker before it is
1370 illegal (post 146) */
1371 if (!(clli
->cfg_flags
& CFG_F_COMPAT146
) &&
1372 !(clli
->cfg_flags
& CFG_F_MARKER
) &&
1373 (lcfg
->lcfg_command
!= LCFG_MARKER
)) {
1374 CWARN("Config not inside markers, ignoring! "
1375 "(inst: %p, uuid: %s, flags: %#x)\n",
1377 clli
->cfg_uuid
.uuid
, clli
->cfg_flags
);
1378 clli
->cfg_flags
|= CFG_F_SKIP
;
1380 if (clli
->cfg_flags
& CFG_F_SKIP
) {
1381 CDEBUG(D_CONFIG
, "skipping %#x\n",
1384 /* No processing! */
1389 * For interoperability between 1.8 and 2.0,
1390 * rename "mds" obd device type to "mdt".
1393 char *typename
= lustre_cfg_string(lcfg
, 1);
1394 char *index
= lustre_cfg_string(lcfg
, 2);
1396 if ((lcfg
->lcfg_command
== LCFG_ATTACH
&& typename
&&
1397 strcmp(typename
, "mds") == 0)) {
1398 CWARN("For 1.8 interoperability, rename obd "
1399 "type from mds to mdt\n");
1402 if ((lcfg
->lcfg_command
== LCFG_SETUP
&& index
&&
1403 strcmp(index
, "type") == 0)) {
1404 CDEBUG(D_INFO
, "For 1.8 interoperability, "
1405 "set this index to '0'\n");
1412 if (clli
->cfg_flags
& CFG_F_EXCLUDE
) {
1413 CDEBUG(D_CONFIG
, "cmd: %x marked EXCLUDED\n",
1414 lcfg
->lcfg_command
);
1415 if (lcfg
->lcfg_command
== LCFG_LOV_ADD_OBD
)
1416 /* Add inactive instead */
1417 lcfg
->lcfg_command
= LCFG_LOV_ADD_INA
;
1420 lustre_cfg_bufs_init(&bufs
, lcfg
);
1422 if (clli
&& clli
->cfg_instance
&&
1423 LUSTRE_CFG_BUFLEN(lcfg
, 0) > 0){
1425 inst_len
= LUSTRE_CFG_BUFLEN(lcfg
, 0) +
1426 sizeof(clli
->cfg_instance
) * 2 + 4;
1427 OBD_ALLOC(inst_name
, inst_len
);
1428 if (inst_name
== NULL
)
1429 GOTO(out
, rc
= -ENOMEM
);
1430 sprintf(inst_name
, "%s-%p",
1431 lustre_cfg_string(lcfg
, 0),
1432 clli
->cfg_instance
);
1433 lustre_cfg_bufs_set_string(&bufs
, 0, inst_name
);
1434 CDEBUG(D_CONFIG
, "cmd %x, instance name: %s\n",
1435 lcfg
->lcfg_command
, inst_name
);
1438 /* we override the llog's uuid for clients, to insure they
1440 if (clli
&& clli
->cfg_instance
!= NULL
&&
1441 lcfg
->lcfg_command
== LCFG_ATTACH
) {
1442 lustre_cfg_bufs_set_string(&bufs
, 2,
1443 clli
->cfg_uuid
.uuid
);
1446 * sptlrpc config record, we expect 2 data segments:
1447 * [0]: fs_name/target_name,
1449 * moving them to index [1] and [2], and insert MGC's
1450 * obdname at index [0].
1452 if (clli
&& clli
->cfg_instance
== NULL
&&
1453 lcfg
->lcfg_command
== LCFG_SPTLRPC_CONF
) {
1454 lustre_cfg_bufs_set(&bufs
, 2, bufs
.lcfg_buf
[1],
1455 bufs
.lcfg_buflen
[1]);
1456 lustre_cfg_bufs_set(&bufs
, 1, bufs
.lcfg_buf
[0],
1457 bufs
.lcfg_buflen
[0]);
1458 lustre_cfg_bufs_set_string(&bufs
, 0,
1462 lcfg_new
= lustre_cfg_new(lcfg
->lcfg_command
, &bufs
);
1464 lcfg_new
->lcfg_num
= lcfg
->lcfg_num
;
1465 lcfg_new
->lcfg_flags
= lcfg
->lcfg_flags
;
1467 /* XXX Hack to try to remain binary compatible with
1468 * pre-newconfig logs */
1469 if (lcfg
->lcfg_nal
!= 0 && /* pre-newconfig log? */
1470 (lcfg
->lcfg_nid
>> 32) == 0) {
1471 __u32 addr
= (__u32
)(lcfg
->lcfg_nid
& 0xffffffff);
1473 lcfg_new
->lcfg_nid
=
1474 LNET_MKNID(LNET_MKNET(lcfg
->lcfg_nal
, 0), addr
);
1475 CWARN("Converted pre-newconfig NAL %d NID %x to %s\n",
1476 lcfg
->lcfg_nal
, addr
,
1477 libcfs_nid2str(lcfg_new
->lcfg_nid
));
1479 lcfg_new
->lcfg_nid
= lcfg
->lcfg_nid
;
1482 lcfg_new
->lcfg_nal
= 0; /* illegal value for obsolete field */
1484 rc
= class_process_config(lcfg_new
);
1485 lustre_cfg_free(lcfg_new
);
1488 OBD_FREE(inst_name
, inst_len
);
1492 CERROR("Unknown llog record type %#x encountered\n",
1498 CERROR("%s: cfg command failed: rc = %d\n",
1499 handle
->lgh_ctxt
->loc_obd
->obd_name
, rc
);
1500 class_config_dump_handler(NULL
, handle
, rec
, data
);
1504 EXPORT_SYMBOL(class_config_llog_handler
);
1506 int class_config_parse_llog(const struct lu_env
*env
, struct llog_ctxt
*ctxt
,
1507 char *name
, struct config_llog_instance
*cfg
)
1509 struct llog_process_cat_data cd
= {0, 0};
1510 struct llog_handle
*llh
;
1514 CDEBUG(D_INFO
, "looking up llog %s\n", name
);
1515 rc
= llog_open(env
, ctxt
, &llh
, NULL
, name
, LLOG_OPEN_EXISTS
);
1519 rc
= llog_init_handle(env
, llh
, LLOG_F_IS_PLAIN
, NULL
);
1521 GOTO(parse_out
, rc
);
1523 /* continue processing from where we last stopped to end-of-log */
1525 cd
.lpcd_first_idx
= cfg
->cfg_last_idx
;
1526 callback
= cfg
->cfg_callback
;
1527 LASSERT(callback
!= NULL
);
1529 callback
= class_config_llog_handler
;
1532 cd
.lpcd_last_idx
= 0;
1534 rc
= llog_process(env
, llh
, callback
, cfg
, &cd
);
1536 CDEBUG(D_CONFIG
, "Processed log %s gen %d-%d (rc=%d)\n", name
,
1537 cd
.lpcd_first_idx
+ 1, cd
.lpcd_last_idx
, rc
);
1539 cfg
->cfg_last_idx
= cd
.lpcd_last_idx
;
1542 llog_close(env
, llh
);
1545 EXPORT_SYMBOL(class_config_parse_llog
);
1548 * parse config record and output dump in supplied buffer.
1549 * This is separated from class_config_dump_handler() to use
1550 * for ioctl needs as well
1552 int class_config_parse_rec(struct llog_rec_hdr
*rec
, char *buf
, int size
)
1554 struct lustre_cfg
*lcfg
= (struct lustre_cfg
*)(rec
+ 1);
1556 char *end
= buf
+ size
;
1559 LASSERT(rec
->lrh_type
== OBD_CFG_REC
);
1560 rc
= lustre_cfg_sanity_check(lcfg
, rec
->lrh_len
);
1564 ptr
+= snprintf(ptr
, end
-ptr
, "cmd=%05x ", lcfg
->lcfg_command
);
1565 if (lcfg
->lcfg_flags
)
1566 ptr
+= snprintf(ptr
, end
-ptr
, "flags=%#08x ",
1570 ptr
+= snprintf(ptr
, end
-ptr
, "num=%#08x ", lcfg
->lcfg_num
);
1573 ptr
+= snprintf(ptr
, end
-ptr
, "nid=%s("LPX64
")\n ",
1574 libcfs_nid2str(lcfg
->lcfg_nid
),
1577 if (lcfg
->lcfg_command
== LCFG_MARKER
) {
1578 struct cfg_marker
*marker
= lustre_cfg_buf(lcfg
, 1);
1580 ptr
+= snprintf(ptr
, end
-ptr
, "marker=%d(%#x)%s '%s'",
1581 marker
->cm_step
, marker
->cm_flags
,
1582 marker
->cm_tgtname
, marker
->cm_comment
);
1586 for (i
= 0; i
< lcfg
->lcfg_bufcount
; i
++) {
1587 ptr
+= snprintf(ptr
, end
-ptr
, "%d:%s ", i
,
1588 lustre_cfg_string(lcfg
, i
));
1591 /* return consumed bytes */
1596 int class_config_dump_handler(const struct lu_env
*env
,
1597 struct llog_handle
*handle
,
1598 struct llog_rec_hdr
*rec
, void *data
)
1603 OBD_ALLOC(outstr
, 256);
1607 if (rec
->lrh_type
== OBD_CFG_REC
) {
1608 class_config_parse_rec(rec
, outstr
, 256);
1609 LCONSOLE(D_WARNING
, " %s\n", outstr
);
1611 LCONSOLE(D_WARNING
, "unhandled lrh_type: %#x\n", rec
->lrh_type
);
1615 OBD_FREE(outstr
, 256);
1619 int class_config_dump_llog(const struct lu_env
*env
, struct llog_ctxt
*ctxt
,
1620 char *name
, struct config_llog_instance
*cfg
)
1622 struct llog_handle
*llh
;
1625 LCONSOLE_INFO("Dumping config log %s\n", name
);
1627 rc
= llog_open(env
, ctxt
, &llh
, NULL
, name
, LLOG_OPEN_EXISTS
);
1631 rc
= llog_init_handle(env
, llh
, LLOG_F_IS_PLAIN
, NULL
);
1633 GOTO(parse_out
, rc
);
1635 rc
= llog_process(env
, llh
, class_config_dump_handler
, cfg
, NULL
);
1637 llog_close(env
, llh
);
1639 LCONSOLE_INFO("End config log %s\n", name
);
1642 EXPORT_SYMBOL(class_config_dump_llog
);
1644 /** Call class_cleanup and class_detach.
1645 * "Manual" only in the sense that we're faking lcfg commands.
1647 int class_manual_cleanup(struct obd_device
*obd
)
1650 struct lustre_cfg
*lcfg
;
1651 struct lustre_cfg_bufs bufs
;
1655 CERROR("empty cleanup\n");
1664 CDEBUG(D_CONFIG
, "Manual cleanup of %s (flags='%s')\n",
1665 obd
->obd_name
, flags
);
1667 lustre_cfg_bufs_reset(&bufs
, obd
->obd_name
);
1668 lustre_cfg_bufs_set_string(&bufs
, 1, flags
);
1669 lcfg
= lustre_cfg_new(LCFG_CLEANUP
, &bufs
);
1673 rc
= class_process_config(lcfg
);
1675 CERROR("cleanup failed %d: %s\n", rc
, obd
->obd_name
);
1679 /* the lcfg is almost the same for both ops */
1680 lcfg
->lcfg_command
= LCFG_DETACH
;
1681 rc
= class_process_config(lcfg
);
1683 CERROR("detach failed %d: %s\n", rc
, obd
->obd_name
);
1685 lustre_cfg_free(lcfg
);
1688 EXPORT_SYMBOL(class_manual_cleanup
);
1691 * uuid<->export lustre hash operations
1695 uuid_hash(cfs_hash_t
*hs
, const void *key
, unsigned mask
)
1697 return cfs_hash_djb2_hash(((struct obd_uuid
*)key
)->uuid
,
1698 sizeof(((struct obd_uuid
*)key
)->uuid
), mask
);
1702 uuid_key(struct hlist_node
*hnode
)
1704 struct obd_export
*exp
;
1706 exp
= hlist_entry(hnode
, struct obd_export
, exp_uuid_hash
);
1708 return &exp
->exp_client_uuid
;
1712 * NOTE: It is impossible to find an export that is in failed
1713 * state with this function
1716 uuid_keycmp(const void *key
, struct hlist_node
*hnode
)
1718 struct obd_export
*exp
;
1721 exp
= hlist_entry(hnode
, struct obd_export
, exp_uuid_hash
);
1723 return obd_uuid_equals(key
, &exp
->exp_client_uuid
) &&
1728 uuid_export_object(struct hlist_node
*hnode
)
1730 return hlist_entry(hnode
, struct obd_export
, exp_uuid_hash
);
1734 uuid_export_get(cfs_hash_t
*hs
, struct hlist_node
*hnode
)
1736 struct obd_export
*exp
;
1738 exp
= hlist_entry(hnode
, struct obd_export
, exp_uuid_hash
);
1739 class_export_get(exp
);
1743 uuid_export_put_locked(cfs_hash_t
*hs
, struct hlist_node
*hnode
)
1745 struct obd_export
*exp
;
1747 exp
= hlist_entry(hnode
, struct obd_export
, exp_uuid_hash
);
1748 class_export_put(exp
);
1751 static cfs_hash_ops_t uuid_hash_ops
= {
1752 .hs_hash
= uuid_hash
,
1754 .hs_keycmp
= uuid_keycmp
,
1755 .hs_object
= uuid_export_object
,
1756 .hs_get
= uuid_export_get
,
1757 .hs_put_locked
= uuid_export_put_locked
,
1762 * nid<->export hash operations
1766 nid_hash(cfs_hash_t
*hs
, const void *key
, unsigned mask
)
1768 return cfs_hash_djb2_hash(key
, sizeof(lnet_nid_t
), mask
);
1772 nid_key(struct hlist_node
*hnode
)
1774 struct obd_export
*exp
;
1776 exp
= hlist_entry(hnode
, struct obd_export
, exp_nid_hash
);
1778 return &exp
->exp_connection
->c_peer
.nid
;
1782 * NOTE: It is impossible to find an export that is in failed
1783 * state with this function
1786 nid_kepcmp(const void *key
, struct hlist_node
*hnode
)
1788 struct obd_export
*exp
;
1791 exp
= hlist_entry(hnode
, struct obd_export
, exp_nid_hash
);
1793 return exp
->exp_connection
->c_peer
.nid
== *(lnet_nid_t
*)key
&&
1798 nid_export_object(struct hlist_node
*hnode
)
1800 return hlist_entry(hnode
, struct obd_export
, exp_nid_hash
);
1804 nid_export_get(cfs_hash_t
*hs
, struct hlist_node
*hnode
)
1806 struct obd_export
*exp
;
1808 exp
= hlist_entry(hnode
, struct obd_export
, exp_nid_hash
);
1809 class_export_get(exp
);
1813 nid_export_put_locked(cfs_hash_t
*hs
, struct hlist_node
*hnode
)
1815 struct obd_export
*exp
;
1817 exp
= hlist_entry(hnode
, struct obd_export
, exp_nid_hash
);
1818 class_export_put(exp
);
1821 static cfs_hash_ops_t nid_hash_ops
= {
1822 .hs_hash
= nid_hash
,
1824 .hs_keycmp
= nid_kepcmp
,
1825 .hs_object
= nid_export_object
,
1826 .hs_get
= nid_export_get
,
1827 .hs_put_locked
= nid_export_put_locked
,
1832 * nid<->nidstats hash operations
1836 nidstats_key(struct hlist_node
*hnode
)
1838 struct nid_stat
*ns
;
1840 ns
= hlist_entry(hnode
, struct nid_stat
, nid_hash
);
1846 nidstats_keycmp(const void *key
, struct hlist_node
*hnode
)
1848 return *(lnet_nid_t
*)nidstats_key(hnode
) == *(lnet_nid_t
*)key
;
1852 nidstats_object(struct hlist_node
*hnode
)
1854 return hlist_entry(hnode
, struct nid_stat
, nid_hash
);
1858 nidstats_get(cfs_hash_t
*hs
, struct hlist_node
*hnode
)
1860 struct nid_stat
*ns
;
1862 ns
= hlist_entry(hnode
, struct nid_stat
, nid_hash
);
1867 nidstats_put_locked(cfs_hash_t
*hs
, struct hlist_node
*hnode
)
1869 struct nid_stat
*ns
;
1871 ns
= hlist_entry(hnode
, struct nid_stat
, nid_hash
);
1875 static cfs_hash_ops_t nid_stat_hash_ops
= {
1876 .hs_hash
= nid_hash
,
1877 .hs_key
= nidstats_key
,
1878 .hs_keycmp
= nidstats_keycmp
,
1879 .hs_object
= nidstats_object
,
1880 .hs_get
= nidstats_get
,
1881 .hs_put_locked
= nidstats_put_locked
,