1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (c) 2001-2006 Cluster File Systems, Inc.
6 * This file is part of the Lustre file system, http://www.lustre.org
7 * Lustre is a trademark of Cluster File Systems, Inc.
9 * You may have signed or agreed to another license before downloading
10 * this software. If so, you are bound by the terms and conditions
11 * of that agreement, and the following does not apply to you. See the
12 * LICENSE file included with this distribution for more information.
14 * If you did not agree to a different license, then this copy of Lustre
15 * is open source software; you can redistribute it and/or modify it
16 * under the terms of version 2 of the GNU General Public License as
17 * published by the Free Software Foundation.
19 * In either case, Lustre is distributed in the hope that it will be
20 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
21 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * license text for more details.
28 #define DEBUG_SUBSYSTEM S_CLASS
30 #include <obd_class.h>
31 #include <linux/string.h>
33 #include <liblustre.h>
34 #include <obd_class.h>
37 #include <lustre_log.h>
38 #include <lprocfs_status.h>
39 #include <libcfs/list.h>
40 #include <lustre_param.h>
42 /*********** string parsing utils *********/
44 /* returns 0 if we find this key in the buffer, else 1 */
45 int class_find_param(char *buf, char *key, char **valp)
52 if ((ptr = strstr(buf, key)) == NULL)
56 *valp = ptr + strlen(key);
61 /* returns 0 if this is the first key in the buffer, else 1.
62 valp points to first char after key. */
63 int class_match_param(char *buf, char *key, char **valp)
68 if (memcmp(buf, key, strlen(key)) != 0)
72 *valp = buf + strlen(key);
80 endh is set to next separator */
81 int class_parse_nid(char *buf, lnet_nid_t *nid, char **endh)
87 while (*buf == ',' || *buf == ':')
89 if (*buf == ' ' || *buf == '/' || *buf == '\0')
92 /* nid separators or end of nids */
93 endp = strpbrk(buf, ",: /");
95 endp = buf + strlen(buf);
99 *nid = libcfs_str2nid(buf);
100 if (*nid == LNET_NID_ANY) {
101 LCONSOLE_ERROR_MSG(0x159, "Can't parse NID '%s'\n", buf);
109 CDEBUG(D_INFO, "Nid %s\n", libcfs_nid2str(*nid));
113 EXPORT_SYMBOL(class_find_param);
114 EXPORT_SYMBOL(class_match_param);
115 EXPORT_SYMBOL(class_parse_nid);
117 /********************** class fns **********************/
119 /* Create a new device and set the type, name and uuid. If
120 * successful, the new device can be accessed by either name or uuid.
122 int class_attach(struct lustre_cfg *lcfg)
124 struct obd_device *obd = NULL;
125 char *typename, *name, *uuid;
129 if (!LUSTRE_CFG_BUFLEN(lcfg, 1)) {
130 CERROR("No type passed!\n");
133 typename = lustre_cfg_string(lcfg, 1);
135 if (!LUSTRE_CFG_BUFLEN(lcfg, 0)) {
136 CERROR("No name passed!\n");
139 name = lustre_cfg_string(lcfg, 0);
141 if (!LUSTRE_CFG_BUFLEN(lcfg, 2)) {
142 CERROR("No UUID passed!\n");
145 uuid = lustre_cfg_string(lcfg, 2);
147 CDEBUG(D_IOCTL, "attach type %s name: %s uuid: %s\n",
148 MKSTR(typename), MKSTR(name), MKSTR(uuid));
150 obd = class_newdev(typename, name);
152 /* Already exists or out of obds */
155 CERROR("Cannot create device %s of type %s : %d\n",
159 LASSERTF(obd != NULL, "Cannot get obd device %s of type %s\n",
161 LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC,
162 "obd %p obd_magic %08X != %08X\n",
163 obd, obd->obd_magic, OBD_DEVICE_MAGIC);
164 LASSERTF(strncmp(obd->obd_name, name, strlen(name)) == 0, "%p obd_name %s != %s\n",
165 obd, obd->obd_name, name);
167 CFS_INIT_LIST_HEAD(&obd->obd_exports);
168 CFS_INIT_LIST_HEAD(&obd->obd_exports_timed);
169 spin_lock_init(&obd->obd_dev_lock);
170 sema_init(&obd->obd_dev_sem, 1);
171 sema_init(&obd->obd_proc_exp_sem, 1);
172 spin_lock_init(&obd->obd_osfs_lock);
173 /* obd->obd_osfs_age must be set to a value in the distant
174 * past to guarantee a fresh statfs is fetched on mount. */
175 obd->obd_osfs_age = cfs_time_shift_64(-1000);
177 /* XXX belongs in setup not attach */
179 cfs_init_timer(&obd->obd_recovery_timer);
180 spin_lock_init(&obd->obd_processing_task_lock);
181 cfs_waitq_init(&obd->obd_next_transno_waitq);
182 cfs_waitq_init(&obd->obd_evict_inprogress_waitq);
183 CFS_INIT_LIST_HEAD(&obd->obd_req_replay_queue);
184 CFS_INIT_LIST_HEAD(&obd->obd_lock_replay_queue);
185 CFS_INIT_LIST_HEAD(&obd->obd_final_req_queue);
187 spin_lock_init(&obd->obd_uncommitted_replies_lock);
188 CFS_INIT_LIST_HEAD(&obd->obd_uncommitted_replies);
191 if (len >= sizeof(obd->obd_uuid)) {
192 CERROR("uuid must be < "LPSZ" bytes long\n",
193 sizeof(obd->obd_uuid));
194 GOTO(out, rc = -EINVAL);
196 memcpy(obd->obd_uuid.uuid, uuid, len);
199 if (OBP(obd, attach)) {
200 rc = OBP(obd,attach)(obd, sizeof *lcfg, lcfg);
202 GOTO(out, rc = -EINVAL);
205 /* Detach drops this */
206 spin_lock(&obd->obd_dev_lock);
207 atomic_set(&obd->obd_refcount, 1);
208 spin_unlock(&obd->obd_dev_lock);
210 obd->obd_attached = 1;
211 CDEBUG(D_IOCTL, "OBD: dev %d attached type %s with refcount %d\n",
212 obd->obd_minor, typename, atomic_read(&obd->obd_refcount));
216 class_release_dev(obd);
221 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg)
224 struct obd_export *exp;
227 LASSERT(obd != NULL);
228 LASSERTF(obd == class_num2obd(obd->obd_minor), "obd %p != obd_devs[%d] %p\n",
229 obd, obd->obd_minor, class_num2obd(obd->obd_minor));
230 LASSERTF(obd->obd_magic == OBD_DEVICE_MAGIC, "obd %p obd_magic %08x != %08x\n",
231 obd, obd->obd_magic, OBD_DEVICE_MAGIC);
233 /* have we attached a type to this device? */
234 if (!obd->obd_attached) {
235 CERROR("Device %d not attached\n", obd->obd_minor);
239 if (obd->obd_set_up) {
240 CERROR("Device %d already setup (type %s)\n",
241 obd->obd_minor, obd->obd_type->typ_name);
245 /* is someone else setting us up right now? (attach inits spinlock) */
246 spin_lock(&obd->obd_dev_lock);
247 if (obd->obd_starting) {
248 spin_unlock(&obd->obd_dev_lock);
249 CERROR("Device %d setup in progress (type %s)\n",
250 obd->obd_minor, obd->obd_type->typ_name);
253 /* just leave this on forever. I can't use obd_set_up here because
254 other fns check that status, and we're not actually set up yet. */
255 obd->obd_starting = 1;
256 spin_unlock(&obd->obd_dev_lock);
258 exp = class_new_export(obd, &obd->obd_uuid);
260 RETURN(PTR_ERR(exp));
261 obd->obd_self_export = exp;
262 list_del_init(&exp->exp_obd_chain_timed);
263 class_export_put(exp);
265 err = obd_setup(obd, lcfg);
271 spin_lock(&obd->obd_dev_lock);
272 /* cleanup drops this */
274 spin_unlock(&obd->obd_dev_lock);
276 CDEBUG(D_IOCTL, "finished setup of obd %s (uuid %s)\n",
277 obd->obd_name, obd->obd_uuid.uuid);
282 CERROR("setup %s failed (%d)\n", obd->obd_name, err);
283 class_unlink_export(obd->obd_self_export);
284 obd->obd_self_export = NULL;
285 obd->obd_starting = 0;
289 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg)
293 if (obd->obd_set_up) {
294 CERROR("OBD device %d still set up\n", obd->obd_minor);
298 spin_lock(&obd->obd_dev_lock);
299 if (!obd->obd_attached) {
300 spin_unlock(&obd->obd_dev_lock);
301 CERROR("OBD device %d not attached\n", obd->obd_minor);
304 obd->obd_attached = 0;
305 spin_unlock(&obd->obd_dev_lock);
307 CDEBUG(D_IOCTL, "detach on obd %s (uuid %s)\n",
308 obd->obd_name, obd->obd_uuid.uuid);
312 /* not strictly necessary, but cleans up eagerly */
313 obd_zombie_impexp_cull();
318 static void dump_exports(struct obd_device *obd)
320 struct obd_export *exp, *n;
322 list_for_each_entry_safe(exp, n, &obd->obd_exports, exp_obd_chain) {
323 struct ptlrpc_reply_state *rs;
324 struct ptlrpc_reply_state *first_reply = NULL;
327 list_for_each_entry (rs, &exp->exp_outstanding_replies,
334 CDEBUG(D_IOCTL, "%s: %p %s %s %d %d %d: %p %s\n",
335 obd->obd_name, exp, exp->exp_client_uuid.uuid,
336 obd_export_nid2str(exp),
337 atomic_read(&exp->exp_refcount),
338 exp->exp_failed, nreplies, first_reply,
339 nreplies > 3 ? "..." : "");
343 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg)
349 OBD_RACE(OBD_FAIL_LDLM_RECOV_CLIENTS);
351 if (!obd->obd_set_up) {
352 CERROR("Device %d not setup\n", obd->obd_minor);
356 spin_lock(&obd->obd_dev_lock);
357 if (obd->obd_stopping) {
358 spin_unlock(&obd->obd_dev_lock);
359 CERROR("OBD %d already stopping\n", obd->obd_minor);
362 /* Leave this on forever */
363 obd->obd_stopping = 1;
364 spin_unlock(&obd->obd_dev_lock);
366 if (lcfg->lcfg_bufcount >= 2 && LUSTRE_CFG_BUFLEN(lcfg, 1) > 0) {
367 for (flag = lustre_cfg_string(lcfg, 1); *flag != 0; flag++)
373 LCONSOLE_WARN("Failing over %s\n",
376 obd->obd_no_transno = 1;
377 obd->obd_no_recov = 1;
378 /* Set the obd readonly if we can */
379 if (OBP(obd, iocontrol))
380 obd_iocontrol(OBD_IOC_SET_READONLY,
381 obd->obd_self_export,
385 CERROR("unrecognised flag '%c'\n",
390 /* The three references that should be remaining are the
391 * obd_self_export and the attach and setup references. */
392 if (atomic_read(&obd->obd_refcount) > 3) {
393 #if 0 /* We should never fail to cleanup with mountconf */
394 if (!(obd->obd_fail || obd->obd_force)) {
395 CERROR("OBD %s is still busy with %d references\n"
396 "You should stop active file system users,"
397 " or use the --force option to cleanup.\n",
398 obd->obd_name, atomic_read(&obd->obd_refcount));
400 /* Allow a failed cleanup to try again. */
401 obd->obd_stopping = 0;
404 /* refcounf - 3 might be the number of real exports
405 (excluding self export). But class_incref is called
406 by other things as well, so don't count on it. */
407 CDEBUG(D_IOCTL, "%s: forcing exports to disconnect: %d\n",
408 obd->obd_name, atomic_read(&obd->obd_refcount) - 3);
410 class_disconnect_exports(obd);
412 LASSERT(obd->obd_self_export);
414 /* Precleanup stage 1, we must make sure all exports (other than the
415 self-export) get destroyed. */
416 err = obd_precleanup(obd, OBD_CLEANUP_EXPORTS);
418 CERROR("Precleanup %s returned %d\n",
426 struct obd_device *class_incref(struct obd_device *obd)
428 atomic_inc(&obd->obd_refcount);
429 CDEBUG(D_INFO, "incref %s (%p) now %d\n", obd->obd_name, obd,
430 atomic_read(&obd->obd_refcount));
435 void class_decref(struct obd_device *obd)
440 spin_lock(&obd->obd_dev_lock);
441 atomic_dec(&obd->obd_refcount);
442 refs = atomic_read(&obd->obd_refcount);
443 spin_unlock(&obd->obd_dev_lock);
445 CDEBUG(D_INFO, "Decref %s (%p) now %d\n", obd->obd_name, obd, refs);
447 if ((refs == 1) && obd->obd_stopping) {
448 /* All exports (other than the self-export) have been
449 destroyed; there should be no more in-progress ops
451 /* if we're not stopping, we didn't finish setup */
452 /* Precleanup stage 2, do other type-specific
453 cleanup requiring the self-export. */
454 err = obd_precleanup(obd, OBD_CLEANUP_SELF_EXP);
456 CERROR("Precleanup %s returned %d\n",
459 spin_lock(&obd->obd_self_export->exp_lock);
460 obd->obd_self_export->exp_flags |=
461 (obd->obd_fail ? OBD_OPT_FAILOVER : 0) |
462 (obd->obd_force ? OBD_OPT_FORCE : 0);
463 spin_unlock(&obd->obd_self_export->exp_lock);
465 /* note that we'll recurse into class_decref again */
466 class_unlink_export(obd->obd_self_export);
471 CDEBUG(D_CONFIG, "finishing cleanup of obd %s (%s)\n",
472 obd->obd_name, obd->obd_uuid.uuid);
473 LASSERT(!obd->obd_attached);
474 if (obd->obd_stopping) {
475 /* If we're not stopping, we were never set up */
476 err = obd_cleanup(obd);
478 CERROR("Cleanup %s returned %d\n",
481 if (OBP(obd, detach)) {
482 err = OBP(obd,detach)(obd);
484 CERROR("Detach returned %d\n", err);
486 class_release_dev(obd);
490 int class_add_conn(struct obd_device *obd, struct lustre_cfg *lcfg)
492 struct obd_import *imp;
493 struct obd_uuid uuid;
497 if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1 ||
498 LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(struct obd_uuid)) {
499 CERROR("invalid conn_uuid\n");
502 if (strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) &&
503 strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME) &&
504 strcmp(obd->obd_type->typ_name, LUSTRE_MGC_NAME)) {
505 CERROR("can't add connection on non-client dev\n");
509 imp = obd->u.cli.cl_import;
511 CERROR("try to add conn on immature client dev\n");
515 obd_str2uuid(&uuid, lustre_cfg_string(lcfg, 1));
516 rc = obd_add_conn(imp, &uuid, lcfg->lcfg_num);
521 int class_del_conn(struct obd_device *obd, struct lustre_cfg *lcfg)
523 struct obd_import *imp;
524 struct obd_uuid uuid;
528 if (LUSTRE_CFG_BUFLEN(lcfg, 1) < 1 ||
529 LUSTRE_CFG_BUFLEN(lcfg, 1) > sizeof(struct obd_uuid)) {
530 CERROR("invalid conn_uuid\n");
533 if (strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) &&
534 strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME)) {
535 CERROR("can't del connection on non-client dev\n");
539 imp = obd->u.cli.cl_import;
541 CERROR("try to del conn on immature client dev\n");
545 obd_str2uuid(&uuid, lustre_cfg_string(lcfg, 1));
546 rc = obd_del_conn(imp, &uuid);
551 int class_sec_flavor(struct obd_device *obd, struct lustre_cfg *lcfg)
553 struct sec_flavor_config *conf;
556 if (strcmp(obd->obd_type->typ_name, LUSTRE_MDC_NAME) &&
557 strcmp(obd->obd_type->typ_name, LUSTRE_OSC_NAME)) {
558 CERROR("Can't set security flavor on obd %s\n",
559 obd->obd_type->typ_name);
563 if (LUSTRE_CFG_BUFLEN(lcfg, 1) != sizeof(*conf)) {
564 CERROR("invalid data\n");
568 conf = &obd->u.cli.cl_sec_conf;
569 memcpy(conf, lustre_cfg_buf(lcfg, 1), sizeof(*conf));
572 __swab32s(&conf->sfc_rpc_flavor);
573 __swab32s(&conf->sfc_bulk_csum);
574 __swab32s(&conf->sfc_bulk_priv);
575 __swab32s(&conf->sfc_flags);
581 CFS_LIST_HEAD(lustre_profile_list);
583 struct lustre_profile *class_get_profile(const char * prof)
585 struct lustre_profile *lprof;
588 list_for_each_entry(lprof, &lustre_profile_list, lp_list) {
589 if (!strcmp(lprof->lp_profile, prof)) {
596 int class_add_profile(int proflen, char *prof, int osclen, char *osc,
597 int mdclen, char *mdc)
599 struct lustre_profile *lprof;
603 CDEBUG(D_CONFIG, "Add profile %s\n", prof);
605 OBD_ALLOC(lprof, sizeof(*lprof));
608 CFS_INIT_LIST_HEAD(&lprof->lp_list);
610 LASSERT(proflen == (strlen(prof) + 1));
611 OBD_ALLOC(lprof->lp_profile, proflen);
612 if (lprof->lp_profile == NULL)
613 GOTO(out, err = -ENOMEM);
614 memcpy(lprof->lp_profile, prof, proflen);
616 LASSERT(osclen == (strlen(osc) + 1));
617 OBD_ALLOC(lprof->lp_dt, osclen);
618 if (lprof->lp_dt == NULL)
619 GOTO(out, err = -ENOMEM);
620 memcpy(lprof->lp_dt, osc, osclen);
623 LASSERT(mdclen == (strlen(mdc) + 1));
624 OBD_ALLOC(lprof->lp_md, mdclen);
625 if (lprof->lp_md == NULL)
626 GOTO(out, err = -ENOMEM);
627 memcpy(lprof->lp_md, mdc, mdclen);
630 list_add(&lprof->lp_list, &lustre_profile_list);
635 OBD_FREE(lprof->lp_md, mdclen);
637 OBD_FREE(lprof->lp_dt, osclen);
638 if (lprof->lp_profile)
639 OBD_FREE(lprof->lp_profile, proflen);
640 OBD_FREE(lprof, sizeof(*lprof));
644 void class_del_profile(const char *prof)
646 struct lustre_profile *lprof;
649 CDEBUG(D_CONFIG, "Del profile %s\n", prof);
651 lprof = class_get_profile(prof);
653 list_del(&lprof->lp_list);
654 OBD_FREE(lprof->lp_profile, strlen(lprof->lp_profile) + 1);
655 OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1);
657 OBD_FREE(lprof->lp_md, strlen(lprof->lp_md) + 1);
658 OBD_FREE(lprof, sizeof *lprof);
664 void class_del_profiles(void)
666 struct lustre_profile *lprof, *n;
669 list_for_each_entry_safe(lprof, n, &lustre_profile_list, lp_list) {
670 list_del(&lprof->lp_list);
671 OBD_FREE(lprof->lp_profile, strlen(lprof->lp_profile) + 1);
672 OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1);
674 OBD_FREE(lprof->lp_md, strlen(lprof->lp_md) + 1);
675 OBD_FREE(lprof, sizeof *lprof);
680 /* We can't call ll_process_config directly because it lives in a module that
681 must be loaded after this one. */
682 static int (*client_process_config)(struct lustre_cfg *lcfg) = NULL;
684 void lustre_register_client_process_config(int (*cpc)(struct lustre_cfg *lcfg))
686 client_process_config = cpc;
688 EXPORT_SYMBOL(lustre_register_client_process_config);
690 int class_process_config(struct lustre_cfg *lcfg)
692 struct obd_device *obd;
695 LASSERT(lcfg && !IS_ERR(lcfg));
696 CDEBUG(D_IOCTL, "processing cmd: %x\n", lcfg->lcfg_command);
698 /* Commands that don't need a device */
699 switch(lcfg->lcfg_command) {
701 err = class_attach(lcfg);
704 case LCFG_ADD_UUID: {
705 CDEBUG(D_IOCTL, "adding mapping from uuid %s to nid "LPX64
706 " (%s)\n", lustre_cfg_string(lcfg, 1),
707 lcfg->lcfg_nid, libcfs_nid2str(lcfg->lcfg_nid));
709 err = class_add_uuid(lustre_cfg_string(lcfg, 1), lcfg->lcfg_nid);
712 case LCFG_DEL_UUID: {
713 CDEBUG(D_IOCTL, "removing mappings for uuid %s\n",
714 (lcfg->lcfg_bufcount < 2 || LUSTRE_CFG_BUFLEN(lcfg, 1) == 0)
715 ? "<all uuids>" : lustre_cfg_string(lcfg, 1));
717 err = class_del_uuid(lustre_cfg_string(lcfg, 1));
720 case LCFG_MOUNTOPT: {
721 CDEBUG(D_IOCTL, "mountopt: profile %s osc %s mdc %s\n",
722 lustre_cfg_string(lcfg, 1),
723 lustre_cfg_string(lcfg, 2),
724 lustre_cfg_string(lcfg, 3));
725 /* set these mount options somewhere, so ll_fill_super
727 err = class_add_profile(LUSTRE_CFG_BUFLEN(lcfg, 1),
728 lustre_cfg_string(lcfg, 1),
729 LUSTRE_CFG_BUFLEN(lcfg, 2),
730 lustre_cfg_string(lcfg, 2),
731 LUSTRE_CFG_BUFLEN(lcfg, 3),
732 lustre_cfg_string(lcfg, 3));
735 case LCFG_DEL_MOUNTOPT: {
736 CDEBUG(D_IOCTL, "mountopt: profile %s\n",
737 lustre_cfg_string(lcfg, 1));
738 class_del_profile(lustre_cfg_string(lcfg, 1));
741 case LCFG_SET_TIMEOUT: {
742 CDEBUG(D_IOCTL, "changing lustre timeout from %d to %d\n",
743 obd_timeout, lcfg->lcfg_num);
744 obd_timeout = max(lcfg->lcfg_num, 1U);
745 obd_health_check_timeout = HEALTH_CHECK_TIMEOUT;
748 case LCFG_SET_UPCALL: {
749 LCONSOLE_ERROR_MSG(0x15a, "recovery upcall is deprecated\n");
750 /* COMPAT_146 Don't fail on old configs */
754 struct cfg_marker *marker;
755 marker = lustre_cfg_buf(lcfg, 1);
756 CDEBUG(D_IOCTL, "marker %d (%#x) %.16s %s\n", marker->cm_step,
757 marker->cm_flags, marker->cm_tgtname, marker->cm_comment);
761 /* llite has no obd */
762 if ((class_match_param(lustre_cfg_string(lcfg, 1),
763 PARAM_LLITE, 0) == 0) &&
764 client_process_config) {
765 err = (*client_process_config)(lcfg);
773 /* Commands that require a device */
774 obd = class_name2obd(lustre_cfg_string(lcfg, 0));
776 if (!LUSTRE_CFG_BUFLEN(lcfg, 0))
777 CERROR("this lcfg command requires a device name\n");
779 CERROR("no device for: %s\n",
780 lustre_cfg_string(lcfg, 0));
782 GOTO(out, err = -EINVAL);
785 switch(lcfg->lcfg_command) {
787 err = class_setup(obd, lcfg);
791 err = class_detach(obd, lcfg);
795 err = class_cleanup(obd, lcfg);
798 case LCFG_ADD_CONN: {
799 err = class_add_conn(obd, lcfg);
802 case LCFG_DEL_CONN: {
803 err = class_del_conn(obd, lcfg);
806 case LCFG_SEC_FLAVOR: {
807 err = class_sec_flavor(obd, lcfg);
811 err = obd_process_config(obd, sizeof(*lcfg), lcfg);
817 if ((err < 0) && !(lcfg->lcfg_command & LCFG_REQUIRED)) {
818 CWARN("Ignoring error %d on optional command %#x\n", err,
825 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
826 struct lustre_cfg *lcfg, void *data)
829 struct lprocfs_vars *var;
831 int i, keylen, vallen;
832 int matched = 0, j = 0;
836 if (lcfg->lcfg_command != LCFG_PARAM) {
837 CERROR("Unknown command: %d\n", lcfg->lcfg_command);
841 /* e.g. tunefs.lustre --param mdt.group_upcall=foo /r/tmp/lustre-mdt
842 or lctl conf_param lustre-MDT0000.mdt.group_upcall=bar
843 or lctl conf_param lustre-OST0000.osc.max_dirty_mb=36 */
844 for (i = 1; i < lcfg->lcfg_bufcount; i++) {
845 key = lustre_cfg_buf(lcfg, i);
846 /* Strip off prefix */
847 class_match_param(key, prefix, &key);
848 sval = strchr(key, '=');
849 if (!sval || (*(sval + 1) == 0)) {
850 CERROR("Can't parse param %s\n", key);
852 /* continue parsing other params */
857 vallen = strlen(sval);
860 /* Search proc entries */
861 while (lvars[j].name) {
863 if (class_match_param(key, (char *)var->name, 0) == 0 &&
864 keylen == strlen(var->name)) {
867 if (var->write_fptr) {
871 rc = (var->write_fptr)(NULL, sval,
876 CERROR("writing proc entry %s err %d\n",
883 CERROR("%s: unknown param %s\n",
884 (char *)lustre_cfg_string(lcfg, 0), key);
886 /* continue parsing other params */
888 LCONSOLE_INFO("%s.%.*s: set parameter %.*s=%s\n",
889 (char *)lustre_cfg_string(lcfg, 0),
890 (int)strlen(prefix) - 1, prefix,
891 (int)(sval - key - 1), key, sval);
899 CDEBUG(D_CONFIG, "liblustre can't process params.\n");
900 /* Don't throw config error */
905 int class_config_dump_handler(struct llog_handle * handle,
906 struct llog_rec_hdr *rec, void *data);
909 extern int lustre_check_exclusion(struct super_block *sb, char *svname);
911 #define lustre_check_exclusion(a,b) 0
914 static int class_config_llog_handler(struct llog_handle * handle,
915 struct llog_rec_hdr *rec, void *data)
917 struct config_llog_instance *clli = data;
918 int cfg_len = rec->lrh_len;
919 char *cfg_buf = (char*) (rec + 1);
923 //class_config_dump_handler(handle, rec, data);
925 switch (rec->lrh_type) {
927 struct lustre_cfg *lcfg, *lcfg_new;
928 struct lustre_cfg_bufs bufs;
929 char *inst_name = NULL;
933 lcfg = (struct lustre_cfg *)cfg_buf;
934 if (lcfg->lcfg_version == __swab32(LUSTRE_CFG_VERSION))
935 lustre_swab_lustre_cfg(lcfg);
937 rc = lustre_cfg_sanity_check(cfg_buf, cfg_len);
941 /* Figure out config state info */
942 if (lcfg->lcfg_command == LCFG_MARKER) {
943 struct cfg_marker *marker = lustre_cfg_buf(lcfg, 1);
944 CDEBUG(D_CONFIG, "Marker, inst_flg=%#x mark_flg=%#x\n",
945 clli->cfg_flags, marker->cm_flags);
946 if (marker->cm_flags & CM_START) {
947 /* all previous flags off */
948 clli->cfg_flags = CFG_F_MARKER;
949 if (marker->cm_flags & CM_SKIP) {
950 clli->cfg_flags |= CFG_F_SKIP;
951 CDEBUG(D_CONFIG, "SKIP #%d\n",
953 } else if ((marker->cm_flags & CM_EXCLUDE) ||
954 lustre_check_exclusion(clli->cfg_sb,
955 marker->cm_tgtname)) {
956 clli->cfg_flags |= CFG_F_EXCLUDE;
957 CDEBUG(D_CONFIG, "EXCLUDE %d\n",
960 } else if (marker->cm_flags & CM_END) {
964 /* A config command without a start marker before it is
965 illegal (post 146) */
966 if (!(clli->cfg_flags & CFG_F_COMPAT146) &&
967 !(clli->cfg_flags & CFG_F_MARKER) &&
968 (lcfg->lcfg_command != LCFG_MARKER)) {
969 CWARN("Config not inside markers, ignoring! "
970 "(inst: %s, uuid: %s, flags: %#x)\n",
971 clli->cfg_instance ? clli->cfg_instance : "<null>",
972 clli->cfg_uuid.uuid, clli->cfg_flags);
973 clli->cfg_flags |= CFG_F_SKIP;
975 if (clli->cfg_flags & CFG_F_SKIP) {
976 CDEBUG(D_CONFIG, "skipping %#x\n",
983 if ((clli->cfg_flags & CFG_F_EXCLUDE) &&
984 (lcfg->lcfg_command == LCFG_LOV_ADD_OBD))
985 /* Add inactive instead */
986 lcfg->lcfg_command = LCFG_LOV_ADD_INA;
988 lustre_cfg_bufs_init(&bufs, lcfg);
990 if (clli && clli->cfg_instance &&
991 LUSTRE_CFG_BUFLEN(lcfg, 0) > 0){
993 inst_len = LUSTRE_CFG_BUFLEN(lcfg, 0) +
994 strlen(clli->cfg_instance) + 1;
995 OBD_ALLOC(inst_name, inst_len);
996 if (inst_name == NULL)
997 GOTO(out, rc = -ENOMEM);
998 sprintf(inst_name, "%s-%s",
999 lustre_cfg_string(lcfg, 0),
1000 clli->cfg_instance);
1001 lustre_cfg_bufs_set_string(&bufs, 0, inst_name);
1002 CDEBUG(D_CONFIG, "cmd %x, instance name: %s\n",
1003 lcfg->lcfg_command, inst_name);
1006 /* we override the llog's uuid for clients, to insure they
1008 if (clli && clli->cfg_instance &&
1009 lcfg->lcfg_command == LCFG_ATTACH) {
1010 lustre_cfg_bufs_set_string(&bufs, 2,
1011 clli->cfg_uuid.uuid);
1014 lcfg_new = lustre_cfg_new(lcfg->lcfg_command, &bufs);
1016 lcfg_new->lcfg_num = lcfg->lcfg_num;
1017 lcfg_new->lcfg_flags = lcfg->lcfg_flags;
1019 /* XXX Hack to try to remain binary compatible with
1020 * pre-newconfig logs */
1021 if (lcfg->lcfg_nal != 0 && /* pre-newconfig log? */
1022 (lcfg->lcfg_nid >> 32) == 0) {
1023 __u32 addr = (__u32)(lcfg->lcfg_nid & 0xffffffff);
1025 lcfg_new->lcfg_nid =
1026 LNET_MKNID(LNET_MKNET(lcfg->lcfg_nal, 0), addr);
1027 CWARN("Converted pre-newconfig NAL %d NID %x to %s\n",
1028 lcfg->lcfg_nal, addr,
1029 libcfs_nid2str(lcfg_new->lcfg_nid));
1031 lcfg_new->lcfg_nid = lcfg->lcfg_nid;
1034 lcfg_new->lcfg_nal = 0; /* illegal value for obsolete field */
1036 rc = class_process_config(lcfg_new);
1037 lustre_cfg_free(lcfg_new);
1040 OBD_FREE(inst_name, inst_len);
1044 CERROR("Unknown llog record type %#x encountered\n",
1050 CERROR("Err %d on cfg command:\n", rc);
1051 class_config_dump_handler(handle, rec, data);
1056 int class_config_parse_llog(struct llog_ctxt *ctxt, char *name,
1057 struct config_llog_instance *cfg)
1059 struct llog_process_cat_data cd = {0, 0};
1060 struct llog_handle *llh;
1064 CDEBUG(D_INFO, "looking up llog %s\n", name);
1065 rc = llog_create(ctxt, &llh, NULL, name);
1069 rc = llog_init_handle(llh, LLOG_F_IS_PLAIN, NULL);
1071 GOTO(parse_out, rc);
1073 /* continue processing from where we last stopped to end-of-log */
1075 cd.first_idx = cfg->cfg_last_idx;
1078 rc = llog_process(llh, class_config_llog_handler, cfg, &cd);
1080 CDEBUG(D_CONFIG, "Processed log %s gen %d-%d (rc=%d)\n", name,
1081 cd.first_idx + 1, cd.last_idx, rc);
1084 cfg->cfg_last_idx = cd.last_idx;
1087 rc2 = llog_close(llh);
1094 int class_config_dump_handler(struct llog_handle * handle,
1095 struct llog_rec_hdr *rec, void *data)
1097 int cfg_len = rec->lrh_len;
1098 char *cfg_buf = (char*) (rec + 1);
1099 char *outstr, *ptr, *end;
1103 OBD_ALLOC(outstr, 256);
1109 if (rec->lrh_type == OBD_CFG_REC) {
1110 struct lustre_cfg *lcfg;
1113 rc = lustre_cfg_sanity_check(cfg_buf, cfg_len);
1116 lcfg = (struct lustre_cfg *)cfg_buf;
1118 ptr += snprintf(ptr, end-ptr, "cmd=%05x ",
1119 lcfg->lcfg_command);
1120 if (lcfg->lcfg_flags) {
1121 ptr += snprintf(ptr, end-ptr, "flags=%#08x ",
1124 if (lcfg->lcfg_num) {
1125 ptr += snprintf(ptr, end-ptr, "num=%#08x ",
1128 if (lcfg->lcfg_nid) {
1129 ptr += snprintf(ptr, end-ptr, "nid=%s("LPX64")\n ",
1130 libcfs_nid2str(lcfg->lcfg_nid),
1133 if (lcfg->lcfg_command == LCFG_MARKER) {
1134 struct cfg_marker *marker = lustre_cfg_buf(lcfg, 1);
1135 ptr += snprintf(ptr, end-ptr, "marker=%d(%#x)%s '%s'",
1136 marker->cm_step, marker->cm_flags,
1137 marker->cm_tgtname, marker->cm_comment);
1139 for (i = 0; i < lcfg->lcfg_bufcount; i++) {
1140 ptr += snprintf(ptr, end-ptr, "%d:%s ", i,
1141 lustre_cfg_string(lcfg, i));
1144 LCONSOLE(D_WARNING, " %s\n", outstr);
1146 LCONSOLE(D_WARNING, "unhandled lrh_type: %#x\n", rec->lrh_type);
1150 OBD_FREE(outstr, 256);
1154 int class_config_dump_llog(struct llog_ctxt *ctxt, char *name,
1155 struct config_llog_instance *cfg)
1157 struct llog_handle *llh;
1161 LCONSOLE_INFO("Dumping config log %s\n", name);
1163 rc = llog_create(ctxt, &llh, NULL, name);
1167 rc = llog_init_handle(llh, LLOG_F_IS_PLAIN, NULL);
1169 GOTO(parse_out, rc);
1171 rc = llog_process(llh, class_config_dump_handler, cfg, NULL);
1173 rc2 = llog_close(llh);
1177 LCONSOLE_INFO("End config log %s\n", name);
1182 /* Cleanup and detach */
1183 int class_manual_cleanup(struct obd_device *obd)
1185 struct lustre_cfg *lcfg;
1186 struct lustre_cfg_bufs bufs;
1192 CERROR("empty cleanup\n");
1201 CDEBUG(D_CONFIG, "Manual cleanup of %s (flags='%s')\n",
1202 obd->obd_name, flags);
1204 lustre_cfg_bufs_reset(&bufs, obd->obd_name);
1205 lustre_cfg_bufs_set_string(&bufs, 1, flags);
1206 lcfg = lustre_cfg_new(LCFG_CLEANUP, &bufs);
1208 rc = class_process_config(lcfg);
1210 CERROR("cleanup failed %d: %s\n", rc, obd->obd_name);
1214 /* the lcfg is almost the same for both ops */
1215 lcfg->lcfg_command = LCFG_DETACH;
1216 rc = class_process_config(lcfg);
1218 CERROR("detach failed %d: %s\n", rc, obd->obd_name);
1220 lustre_cfg_free(lcfg);