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) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2012, Whamcloud, Inc.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 #define DEBUG_SUBSYSTEM S_CLASS
39 # include <liblustre.h>
42 #include <obd_support.h>
44 #include <lprocfs_status.h>
45 #include <lustre/lustre_idl.h>
46 #include <lustre_net.h>
47 #include <obd_class.h>
48 #include "ptlrpc_internal.h"
51 struct ll_rpc_opcode {
54 } ll_rpc_opcode_table[LUSTRE_MAX_OPCODES] = {
55 { OST_REPLY, "ost_reply" },
56 { OST_GETATTR, "ost_getattr" },
57 { OST_SETATTR, "ost_setattr" },
58 { OST_READ, "ost_read" },
59 { OST_WRITE, "ost_write" },
60 { OST_CREATE , "ost_create" },
61 { OST_DESTROY, "ost_destroy" },
62 { OST_GET_INFO, "ost_get_info" },
63 { OST_CONNECT, "ost_connect" },
64 { OST_DISCONNECT, "ost_disconnect" },
65 { OST_PUNCH, "ost_punch" },
66 { OST_OPEN, "ost_open" },
67 { OST_CLOSE, "ost_close" },
68 { OST_STATFS, "ost_statfs" },
69 { 14, NULL }, /* formerly OST_SAN_READ */
70 { 15, NULL }, /* formerly OST_SAN_WRITE */
71 { OST_SYNC, "ost_sync" },
72 { OST_SET_INFO, "ost_set_info" },
73 { OST_QUOTACHECK, "ost_quotacheck" },
74 { OST_QUOTACTL, "ost_quotactl" },
75 { OST_QUOTA_ADJUST_QUNIT, "ost_quota_adjust_qunit" },
76 { MDS_GETATTR, "mds_getattr" },
77 { MDS_GETATTR_NAME, "mds_getattr_lock" },
78 { MDS_CLOSE, "mds_close" },
79 { MDS_REINT, "mds_reint" },
80 { MDS_READPAGE, "mds_readpage" },
81 { MDS_CONNECT, "mds_connect" },
82 { MDS_DISCONNECT, "mds_disconnect" },
83 { MDS_GETSTATUS, "mds_getstatus" },
84 { MDS_STATFS, "mds_statfs" },
85 { MDS_PIN, "mds_pin" },
86 { MDS_UNPIN, "mds_unpin" },
87 { MDS_SYNC, "mds_sync" },
88 { MDS_DONE_WRITING, "mds_done_writing" },
89 { MDS_SET_INFO, "mds_set_info" },
90 { MDS_QUOTACHECK, "mds_quotacheck" },
91 { MDS_QUOTACTL, "mds_quotactl" },
92 { MDS_GETXATTR, "mds_getxattr" },
93 { MDS_SETXATTR, "mds_setxattr" },
94 { MDS_WRITEPAGE, "mds_writepage" },
95 { MDS_IS_SUBDIR, "mds_is_subdir" },
96 { MDS_GET_INFO, "mds_get_info" },
97 { LDLM_ENQUEUE, "ldlm_enqueue" },
98 { LDLM_CONVERT, "ldlm_convert" },
99 { LDLM_CANCEL, "ldlm_cancel" },
100 { LDLM_BL_CALLBACK, "ldlm_bl_callback" },
101 { LDLM_CP_CALLBACK, "ldlm_cp_callback" },
102 { LDLM_GL_CALLBACK, "ldlm_gl_callback" },
103 { LDLM_SET_INFO, "ldlm_set_info" },
104 { MGS_CONNECT, "mgs_connect" },
105 { MGS_DISCONNECT, "mgs_disconnect" },
106 { MGS_EXCEPTION, "mgs_exception" },
107 { MGS_TARGET_REG, "mgs_target_reg" },
108 { MGS_TARGET_DEL, "mgs_target_del" },
109 { MGS_SET_INFO, "mgs_set_info" },
110 { MGS_CONFIG_READ, "mgs_config_read" },
111 { OBD_PING, "obd_ping" },
112 { OBD_LOG_CANCEL, "llog_origin_handle_cancel" },
113 { OBD_QC_CALLBACK, "obd_quota_callback" },
114 { OBD_IDX_READ, "dt_index_read" },
115 { LLOG_ORIGIN_HANDLE_CREATE, "llog_origin_handle_create" },
116 { LLOG_ORIGIN_HANDLE_NEXT_BLOCK, "llog_origin_handle_next_block" },
117 { LLOG_ORIGIN_HANDLE_READ_HEADER,"llog_origin_handle_read_header" },
118 { LLOG_ORIGIN_HANDLE_WRITE_REC, "llog_origin_handle_write_rec" },
119 { LLOG_ORIGIN_HANDLE_CLOSE, "llog_origin_handle_close" },
120 { LLOG_ORIGIN_CONNECT, "llog_origin_connect" },
121 { LLOG_CATINFO, "llog_catinfo" },
122 { LLOG_ORIGIN_HANDLE_PREV_BLOCK, "llog_origin_handle_prev_block" },
123 { LLOG_ORIGIN_HANDLE_DESTROY, "llog_origin_handle_destroy" },
124 { QUOTA_DQACQ, "quota_acquire" },
125 { QUOTA_DQREL, "quota_release" },
126 { SEQ_QUERY, "seq_query" },
127 { SEC_CTX_INIT, "sec_ctx_init" },
128 { SEC_CTX_INIT_CONT,"sec_ctx_init_cont" },
129 { SEC_CTX_FINI, "sec_ctx_fini" },
130 { FLD_QUERY, "fld_query" }
136 } ll_eopcode_table[EXTRA_LAST_OPC] = {
137 { LDLM_GLIMPSE_ENQUEUE, "ldlm_glimpse_enqueue" },
138 { LDLM_PLAIN_ENQUEUE, "ldlm_plain_enqueue" },
139 { LDLM_EXTENT_ENQUEUE, "ldlm_extent_enqueue" },
140 { LDLM_FLOCK_ENQUEUE, "ldlm_flock_enqueue" },
141 { LDLM_IBITS_ENQUEUE, "ldlm_ibits_enqueue" },
142 { MDS_REINT_SETATTR, "mds_reint_setattr" },
143 { MDS_REINT_CREATE, "mds_reint_create" },
144 { MDS_REINT_LINK, "mds_reint_link" },
145 { MDS_REINT_UNLINK, "mds_reint_unlink" },
146 { MDS_REINT_RENAME, "mds_reint_rename" },
147 { MDS_REINT_OPEN, "mds_reint_open" },
148 { MDS_REINT_SETXATTR, "mds_reint_setxattr" },
149 { BRW_READ_BYTES, "read_bytes" },
150 { BRW_WRITE_BYTES, "write_bytes" },
153 const char *ll_opcode2str(__u32 opcode)
155 /* When one of the assertions below fail, chances are that:
156 * 1) A new opcode was added in include/lustre/lustre_idl.h,
157 * but is missing from the table above.
158 * or 2) The opcode space was renumbered or rearranged,
159 * and the opcode_offset() function in
160 * ptlrpc_internal.h needs to be modified.
162 __u32 offset = opcode_offset(opcode);
163 LASSERTF(offset < LUSTRE_MAX_OPCODES,
164 "offset %u >= LUSTRE_MAX_OPCODES %u\n",
165 offset, LUSTRE_MAX_OPCODES);
166 LASSERTF(ll_rpc_opcode_table[offset].opcode == opcode,
167 "ll_rpc_opcode_table[%u].opcode %u != opcode %u\n",
168 offset, ll_rpc_opcode_table[offset].opcode, opcode);
169 return ll_rpc_opcode_table[offset].opname;
172 const char* ll_eopcode2str(__u32 opcode)
174 LASSERT(ll_eopcode_table[opcode].opcode == opcode);
175 return ll_eopcode_table[opcode].opname;
178 void ptlrpc_lprocfs_register(struct proc_dir_entry *root, char *dir,
179 char *name, struct proc_dir_entry **procroot_ret,
180 struct lprocfs_stats **stats_ret)
182 struct proc_dir_entry *svc_procroot;
183 struct lprocfs_stats *svc_stats;
185 unsigned int svc_counter_config = LPROCFS_CNTR_AVGMINMAX |
188 LASSERT(*procroot_ret == NULL);
189 LASSERT(*stats_ret == NULL);
191 svc_stats = lprocfs_alloc_stats(EXTRA_MAX_OPCODES+LUSTRE_MAX_OPCODES,0);
192 if (svc_stats == NULL)
196 svc_procroot = lprocfs_register(dir, root, NULL, NULL);
197 if (IS_ERR(svc_procroot)) {
198 lprocfs_free_stats(&svc_stats);
205 lprocfs_counter_init(svc_stats, PTLRPC_REQWAIT_CNTR,
206 svc_counter_config, "req_waittime", "usec");
207 lprocfs_counter_init(svc_stats, PTLRPC_REQQDEPTH_CNTR,
208 svc_counter_config, "req_qdepth", "reqs");
209 lprocfs_counter_init(svc_stats, PTLRPC_REQACTIVE_CNTR,
210 svc_counter_config, "req_active", "reqs");
211 lprocfs_counter_init(svc_stats, PTLRPC_TIMEOUT,
212 svc_counter_config, "req_timeout", "sec");
213 lprocfs_counter_init(svc_stats, PTLRPC_REQBUF_AVAIL_CNTR,
214 svc_counter_config, "reqbuf_avail", "bufs");
215 for (i = 0; i < EXTRA_LAST_OPC; i++) {
219 case BRW_WRITE_BYTES:
227 lprocfs_counter_init(svc_stats, PTLRPC_LAST_CNTR + i,
229 ll_eopcode2str(i), units);
231 for (i = 0; i < LUSTRE_MAX_OPCODES; i++) {
232 __u32 opcode = ll_rpc_opcode_table[i].opcode;
233 lprocfs_counter_init(svc_stats,
234 EXTRA_MAX_OPCODES + i, svc_counter_config,
235 ll_opcode2str(opcode), "usec");
238 rc = lprocfs_register_stats(svc_procroot, name, svc_stats);
241 lprocfs_remove(&svc_procroot);
242 lprocfs_free_stats(&svc_stats);
245 *procroot_ret = svc_procroot;
246 *stats_ret = svc_stats;
251 ptlrpc_lprocfs_read_req_history_len(char *page, char **start, off_t off,
252 int count, int *eof, void *data)
254 struct ptlrpc_service *svc = data;
255 struct ptlrpc_service_part *svcpt;
261 ptlrpc_service_for_each_part(svcpt, i, svc)
262 total += svcpt->scp_hist_nrqbds;
264 return snprintf(page, count, "%d\n", total);
268 ptlrpc_lprocfs_read_req_history_max(char *page, char **start, off_t off,
269 int count, int *eof, void *data)
271 struct ptlrpc_service *svc = data;
272 struct ptlrpc_service_part *svcpt;
277 ptlrpc_service_for_each_part(svcpt, i, svc)
278 total += svc->srv_hist_nrqbds_cpt_max;
280 return snprintf(page, count, "%d\n", total);
284 ptlrpc_lprocfs_write_req_history_max(struct file *file, const char *buffer,
285 unsigned long count, void *data)
287 struct ptlrpc_service *svc = data;
292 rc = lprocfs_write_helper(buffer, count, &val);
299 /* This sanity check is more of an insanity check; we can still
300 * hose a kernel by allowing the request history to grow too
302 bufpages = (svc->srv_buf_size + CFS_PAGE_SIZE - 1) >> CFS_PAGE_SHIFT;
303 if (val > cfs_num_physpages/(2 * bufpages))
306 cfs_spin_lock(&svc->srv_lock);
309 svc->srv_hist_nrqbds_cpt_max = 0;
311 svc->srv_hist_nrqbds_cpt_max = max(1, (val / svc->srv_ncpts));
313 cfs_spin_unlock(&svc->srv_lock);
319 ptlrpc_lprocfs_rd_threads_min(char *page, char **start, off_t off,
320 int count, int *eof, void *data)
322 struct ptlrpc_service *svc = data;
324 return snprintf(page, count, "%d\n",
325 svc->srv_nthrs_cpt_init * svc->srv_ncpts);
329 ptlrpc_lprocfs_wr_threads_min(struct file *file, const char *buffer,
330 unsigned long count, void *data)
332 struct ptlrpc_service *svc = data;
334 int rc = lprocfs_write_helper(buffer, count, &val);
339 if (val / svc->srv_ncpts < PTLRPC_NTHRS_INIT)
342 cfs_spin_lock(&svc->srv_lock);
343 if (val > svc->srv_nthrs_cpt_limit * svc->srv_ncpts) {
344 cfs_spin_unlock(&svc->srv_lock);
348 svc->srv_nthrs_cpt_init = val / svc->srv_ncpts;
350 cfs_spin_unlock(&svc->srv_lock);
356 ptlrpc_lprocfs_rd_threads_started(char *page, char **start, off_t off,
357 int count, int *eof, void *data)
359 struct ptlrpc_service *svc = data;
360 struct ptlrpc_service_part *svcpt;
364 LASSERT(svc->srv_parts != NULL);
365 ptlrpc_service_for_each_part(svcpt, i, svc)
366 total += svcpt->scp_nthrs_running;
368 return snprintf(page, count, "%d\n", total);
372 ptlrpc_lprocfs_rd_threads_max(char *page, char **start, off_t off,
373 int count, int *eof, void *data)
375 struct ptlrpc_service *svc = data;
377 return snprintf(page, count, "%d\n",
378 svc->srv_nthrs_cpt_limit * svc->srv_ncpts);
382 ptlrpc_lprocfs_wr_threads_max(struct file *file, const char *buffer,
383 unsigned long count, void *data)
385 struct ptlrpc_service *svc = data;
387 int rc = lprocfs_write_helper(buffer, count, &val);
392 if (val / svc->srv_ncpts < PTLRPC_NTHRS_INIT)
395 cfs_spin_lock(&svc->srv_lock);
396 if (val < svc->srv_nthrs_cpt_init * svc->srv_ncpts) {
397 cfs_spin_unlock(&svc->srv_lock);
401 svc->srv_nthrs_cpt_limit = val / svc->srv_ncpts;
403 cfs_spin_unlock(&svc->srv_lock);
408 struct ptlrpc_srh_iterator {
411 struct ptlrpc_request *srhi_req;
415 ptlrpc_lprocfs_svc_req_history_seek(struct ptlrpc_service_part *svcpt,
416 struct ptlrpc_srh_iterator *srhi,
420 struct ptlrpc_request *req;
422 if (srhi->srhi_req != NULL &&
423 srhi->srhi_seq > svcpt->scp_hist_seq_culled &&
424 srhi->srhi_seq <= seq) {
425 /* If srhi_req was set previously, hasn't been culled and
426 * we're searching for a seq on or after it (i.e. more
427 * recent), search from it onwards.
428 * Since the service history is LRU (i.e. culled reqs will
429 * be near the head), we shouldn't have to do long
431 LASSERT (srhi->srhi_seq == srhi->srhi_req->rq_history_seq);
432 LASSERTF(!cfs_list_empty(&svcpt->scp_hist_reqs),
433 "%s:%d: seek offset "LPU64", request seq "LPU64", "
434 "last culled "LPU64"\n",
435 svcpt->scp_service->srv_name, svcpt->scp_cpt,
436 seq, srhi->srhi_seq, svcpt->scp_hist_seq_culled);
437 e = &srhi->srhi_req->rq_history_list;
439 /* search from start */
440 e = svcpt->scp_hist_reqs.next;
443 while (e != &svcpt->scp_hist_reqs) {
444 req = cfs_list_entry(e, struct ptlrpc_request, rq_history_list);
446 if (req->rq_history_seq >= seq) {
447 srhi->srhi_seq = req->rq_history_seq;
448 srhi->srhi_req = req;
458 ptlrpc_lprocfs_svc_req_history_start(struct seq_file *s, loff_t *pos)
460 struct ptlrpc_service *svc = s->private;
461 struct ptlrpc_service_part *svcpt;
462 struct ptlrpc_srh_iterator *srhi;
466 OBD_ALLOC(srhi, sizeof(*srhi));
471 srhi->srhi_req = NULL;
473 ptlrpc_service_for_each_part(svcpt, i, svc) {
476 cfs_spin_lock(&svcpt->scp_lock);
477 rc = ptlrpc_lprocfs_svc_req_history_seek(svcpt, srhi, *pos);
478 cfs_spin_unlock(&svcpt->scp_lock);
480 *pos = srhi->srhi_seq;
485 OBD_FREE(srhi, sizeof(*srhi));
490 ptlrpc_lprocfs_svc_req_history_stop(struct seq_file *s, void *iter)
492 struct ptlrpc_srh_iterator *srhi = iter;
495 OBD_FREE(srhi, sizeof(*srhi));
499 ptlrpc_lprocfs_svc_req_history_next(struct seq_file *s,
500 void *iter, loff_t *pos)
502 struct ptlrpc_service *svc = s->private;
503 struct ptlrpc_srh_iterator *srhi = iter;
504 struct ptlrpc_service_part *svcpt;
508 for (i = srhi->srhi_idx; i < svc->srv_ncpts; i++) {
509 svcpt = svc->srv_parts[i];
513 cfs_spin_lock(&svcpt->scp_lock);
514 rc = ptlrpc_lprocfs_svc_req_history_seek(svcpt, srhi, *pos + 1);
515 cfs_spin_unlock(&svcpt->scp_lock);
521 OBD_FREE(srhi, sizeof(*srhi));
525 *pos = srhi->srhi_seq;
529 /* common ost/mdt so_req_printer */
530 void target_print_req(void *seq_file, struct ptlrpc_request *req)
532 /* Called holding srv_lock with irqs disabled.
533 * Print specific req contents and a newline.
534 * CAVEAT EMPTOR: check request message length before printing!!!
535 * You might have received any old crap so you must be just as
536 * careful here as the service's request parser!!! */
537 struct seq_file *sf = seq_file;
539 switch (req->rq_phase) {
541 /* still awaiting a service thread's attention, or rejected
542 * because the generic request message didn't unpack */
543 seq_printf(sf, "<not swabbed>\n");
545 case RQ_PHASE_INTERPRET:
546 /* being handled, so basic msg swabbed, and opc is valid
547 * but racing with mds_handle() */
548 case RQ_PHASE_COMPLETE:
549 /* been handled by mds_handle() reply state possibly still
551 seq_printf(sf, "opc %d\n", lustre_msg_get_opc(req->rq_reqmsg));
554 DEBUG_REQ(D_ERROR, req, "bad phase %d", req->rq_phase);
557 EXPORT_SYMBOL(target_print_req);
559 static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter)
561 struct ptlrpc_service *svc = s->private;
562 struct ptlrpc_srh_iterator *srhi = iter;
563 struct ptlrpc_service_part *svcpt;
564 struct ptlrpc_request *req;
567 LASSERT(srhi->srhi_idx < svc->srv_ncpts);
569 svcpt = svc->srv_parts[srhi->srhi_idx];
571 cfs_spin_lock(&svcpt->scp_lock);
573 rc = ptlrpc_lprocfs_svc_req_history_seek(svcpt, srhi, srhi->srhi_seq);
576 req = srhi->srhi_req;
578 /* Print common req fields.
579 * CAVEAT EMPTOR: we're racing with the service handler
580 * here. The request could contain any old crap, so you
581 * must be just as careful as the service's request
582 * parser. Currently I only print stuff here I know is OK
583 * to look at coz it was set up in request_in_callback()!!! */
584 seq_printf(s, LPD64":%s:%s:x"LPU64":%d:%s:%ld:%lds(%+lds) ",
585 req->rq_history_seq, libcfs_nid2str(req->rq_self),
586 libcfs_id2str(req->rq_peer), req->rq_xid,
587 req->rq_reqlen, ptlrpc_rqphase2str(req),
588 req->rq_arrival_time.tv_sec,
589 req->rq_sent - req->rq_arrival_time.tv_sec,
590 req->rq_sent - req->rq_deadline);
591 if (svc->srv_ops.so_req_printer == NULL)
594 svc->srv_ops.so_req_printer(s, srhi->srhi_req);
597 cfs_spin_unlock(&svcpt->scp_lock);
602 ptlrpc_lprocfs_svc_req_history_open(struct inode *inode, struct file *file)
604 static struct seq_operations sops = {
605 .start = ptlrpc_lprocfs_svc_req_history_start,
606 .stop = ptlrpc_lprocfs_svc_req_history_stop,
607 .next = ptlrpc_lprocfs_svc_req_history_next,
608 .show = ptlrpc_lprocfs_svc_req_history_show,
610 struct proc_dir_entry *dp = PDE(inode);
611 struct seq_file *seqf;
614 LPROCFS_ENTRY_AND_CHECK(dp);
615 rc = seq_open(file, &sops);
621 seqf = file->private_data;
622 seqf->private = dp->data;
626 /* See also lprocfs_rd_timeouts */
627 static int ptlrpc_lprocfs_rd_timeouts(char *page, char **start, off_t off,
628 int count, int *eof, void *data)
630 struct ptlrpc_service *svc = data;
631 struct ptlrpc_service_part *svcpt;
640 LASSERT(svc->srv_parts != NULL);
643 rc += snprintf(page + rc, count - rc,
644 "adaptive timeouts off, using obd_timeout %u\n",
649 ptlrpc_service_for_each_part(svcpt, i, svc) {
650 cur = at_get(&svcpt->scp_at_estimate);
651 worst = svcpt->scp_at_estimate.at_worst_ever;
652 worstt = svcpt->scp_at_estimate.at_worst_time;
653 s2dhms(&ts, cfs_time_current_sec() - worstt);
655 nob = snprintf(page, count,
656 "%10s : cur %3u worst %3u (at %ld, "
657 DHMS_FMT" ago) ", "service",
658 cur, worst, worstt, DHMS_VARS(&ts));
660 nob = lprocfs_at_hist_helper(page, count, nob,
661 &svcpt->scp_at_estimate);
667 * NB: for lustre proc read, the read count must be less
668 * than PAGE_SIZE, please see details in lprocfs_fops_read.
669 * It's unlikely that we exceed PAGE_SIZE at here because
670 * it means the service has more than 50 partitions.
673 CWARN("Can't fit AT information of %s in one page, "
674 "please contact with developer to fix this.\n",
683 static int ptlrpc_lprocfs_rd_hp_ratio(char *page, char **start, off_t off,
684 int count, int *eof, void *data)
686 struct ptlrpc_service *svc = data;
687 int rc = snprintf(page, count, "%d", svc->srv_hpreq_ratio);
691 static int ptlrpc_lprocfs_wr_hp_ratio(struct file *file, const char *buffer,
692 unsigned long count, void *data)
694 struct ptlrpc_service *svc = data;
698 rc = lprocfs_write_helper(buffer, count, &val);
705 cfs_spin_lock(&svc->srv_lock);
706 svc->srv_hpreq_ratio = val;
707 cfs_spin_unlock(&svc->srv_lock);
712 void ptlrpc_lprocfs_register_service(struct proc_dir_entry *entry,
713 struct ptlrpc_service *svc)
715 struct lprocfs_vars lproc_vars[] = {
716 {.name = "high_priority_ratio",
717 .read_fptr = ptlrpc_lprocfs_rd_hp_ratio,
718 .write_fptr = ptlrpc_lprocfs_wr_hp_ratio,
720 {.name = "req_buffer_history_len",
721 .read_fptr = ptlrpc_lprocfs_read_req_history_len,
723 {.name = "req_buffer_history_max",
724 .write_fptr = ptlrpc_lprocfs_write_req_history_max,
725 .read_fptr = ptlrpc_lprocfs_read_req_history_max,
727 {.name = "threads_min",
728 .read_fptr = ptlrpc_lprocfs_rd_threads_min,
729 .write_fptr = ptlrpc_lprocfs_wr_threads_min,
731 {.name = "threads_max",
732 .read_fptr = ptlrpc_lprocfs_rd_threads_max,
733 .write_fptr = ptlrpc_lprocfs_wr_threads_max,
735 {.name = "threads_started",
736 .read_fptr = ptlrpc_lprocfs_rd_threads_started,
739 .read_fptr = ptlrpc_lprocfs_rd_timeouts,
743 static struct file_operations req_history_fops = {
744 .owner = THIS_MODULE,
745 .open = ptlrpc_lprocfs_svc_req_history_open,
748 .release = lprocfs_seq_release,
753 ptlrpc_lprocfs_register(entry, svc->srv_name,
754 "stats", &svc->srv_procroot,
757 if (svc->srv_procroot == NULL)
760 lprocfs_add_vars(svc->srv_procroot, lproc_vars, NULL);
762 rc = lprocfs_seq_create(svc->srv_procroot, "req_history",
763 0400, &req_history_fops, svc);
765 CWARN("Error adding the req_history file\n");
768 void ptlrpc_lprocfs_register_obd(struct obd_device *obddev)
770 ptlrpc_lprocfs_register(obddev->obd_proc_entry, NULL, "stats",
771 &obddev->obd_svc_procroot,
772 &obddev->obd_svc_stats);
774 EXPORT_SYMBOL(ptlrpc_lprocfs_register_obd);
776 void ptlrpc_lprocfs_rpc_sent(struct ptlrpc_request *req, long amount)
778 struct lprocfs_stats *svc_stats;
779 __u32 op = lustre_msg_get_opc(req->rq_reqmsg);
780 int opc = opcode_offset(op);
782 svc_stats = req->rq_import->imp_obd->obd_svc_stats;
783 if (svc_stats == NULL || opc <= 0)
785 LASSERT(opc < LUSTRE_MAX_OPCODES);
786 if (!(op == LDLM_ENQUEUE || op == MDS_REINT))
787 lprocfs_counter_add(svc_stats, opc + EXTRA_MAX_OPCODES, amount);
790 void ptlrpc_lprocfs_brw(struct ptlrpc_request *req, int bytes)
792 struct lprocfs_stats *svc_stats;
797 svc_stats = req->rq_import->imp_obd->obd_svc_stats;
800 idx = lustre_msg_get_opc(req->rq_reqmsg);
803 idx = BRW_READ_BYTES + PTLRPC_LAST_CNTR;
806 idx = BRW_WRITE_BYTES + PTLRPC_LAST_CNTR;
809 LASSERTF(0, "unsupported opcode %u\n", idx);
813 lprocfs_counter_add(svc_stats, idx, bytes);
816 EXPORT_SYMBOL(ptlrpc_lprocfs_brw);
818 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc)
820 if (svc->srv_procroot != NULL)
821 lprocfs_remove(&svc->srv_procroot);
824 lprocfs_free_stats(&svc->srv_stats);
827 void ptlrpc_lprocfs_unregister_obd(struct obd_device *obd)
829 if (obd->obd_svc_procroot)
830 lprocfs_remove(&obd->obd_svc_procroot);
832 if (obd->obd_svc_stats)
833 lprocfs_free_stats(&obd->obd_svc_stats);
835 EXPORT_SYMBOL(ptlrpc_lprocfs_unregister_obd);
838 #define BUFLEN (UUID_MAX + 5)
840 int lprocfs_wr_evict_client(struct file *file, const char *buffer,
841 unsigned long count, void *data)
843 struct obd_device *obd = data;
847 OBD_ALLOC(kbuf, BUFLEN);
852 * OBD_ALLOC() will zero kbuf, but we only copy BUFLEN - 1
853 * bytes into kbuf, to ensure that the string is NUL-terminated.
854 * UUID_MAX should include a trailing NUL already.
856 if (cfs_copy_from_user(kbuf, buffer,
857 min_t(unsigned long, BUFLEN - 1, count))) {
861 tmpbuf = cfs_firststr(kbuf, min_t(unsigned long, BUFLEN - 1, count));
862 /* Kludge code(deadlock situation): the lprocfs lock has been held
863 * since the client is evicted by writting client's
864 * uuid/nid to procfs "evict_client" entry. However,
865 * obd_export_evict_by_uuid() will call lprocfs_remove() to destroy
866 * the proc entries under the being destroyed export{}, so I have
867 * to drop the lock at first here.
868 * - jay, jxiong@clusterfs.com */
869 class_incref(obd, __FUNCTION__, cfs_current());
872 if (strncmp(tmpbuf, "nid:", 4) == 0)
873 obd_export_evict_by_nid(obd, tmpbuf + 4);
874 else if (strncmp(tmpbuf, "uuid:", 5) == 0)
875 obd_export_evict_by_uuid(obd, tmpbuf + 5);
877 obd_export_evict_by_uuid(obd, tmpbuf);
880 class_decref(obd, __FUNCTION__, cfs_current());
883 OBD_FREE(kbuf, BUFLEN);
886 EXPORT_SYMBOL(lprocfs_wr_evict_client);
890 int lprocfs_wr_ping(struct file *file, const char *buffer,
891 unsigned long count, void *data)
893 struct obd_device *obd = data;
894 struct ptlrpc_request *req;
898 LPROCFS_CLIMP_CHECK(obd);
899 req = ptlrpc_prep_ping(obd->u.cli.cl_import);
900 LPROCFS_CLIMP_EXIT(obd);
904 req->rq_send_state = LUSTRE_IMP_FULL;
906 rc = ptlrpc_queue_wait(req);
908 ptlrpc_req_finished(req);
913 EXPORT_SYMBOL(lprocfs_wr_ping);
915 /* Write the connection UUID to this file to attempt to connect to that node.
916 * The connection UUID is a node's primary NID. For example,
917 * "echo connection=192.168.0.1@tcp0::instance > .../import".
919 int lprocfs_wr_import(struct file *file, const char *buffer,
920 unsigned long count, void *data)
922 struct obd_device *obd = data;
923 struct obd_import *imp = obd->u.cli.cl_import;
928 const char prefix[] = "connection=";
929 const int prefix_len = sizeof(prefix) - 1;
931 if (count > CFS_PAGE_SIZE - 1 || count <= prefix_len)
934 OBD_ALLOC(kbuf, count + 1);
938 if (cfs_copy_from_user(kbuf, buffer, count))
939 GOTO(out, count = -EFAULT);
943 /* only support connection=uuid::instance now */
944 if (strncmp(prefix, kbuf, prefix_len) != 0)
945 GOTO(out, count = -EINVAL);
947 uuid = kbuf + prefix_len;
948 ptr = strstr(uuid, "::");
956 inst = simple_strtol(ptr, &endptr, 10);
958 CERROR("config: wrong instance # %s\n", ptr);
959 } else if (inst != imp->imp_connect_data.ocd_instance) {
960 CDEBUG(D_INFO, "IR: %s is connecting to an obsoleted "
961 "target(%u/%u), reconnecting...\n",
962 imp->imp_obd->obd_name,
963 imp->imp_connect_data.ocd_instance, inst);
966 CDEBUG(D_INFO, "IR: %s has already been connecting to "
968 imp->imp_obd->obd_name, inst);
973 ptlrpc_recover_import(imp, uuid, 1);
976 OBD_FREE(kbuf, count + 1);
979 EXPORT_SYMBOL(lprocfs_wr_import);
981 int lprocfs_rd_pinger_recov(char *page, char **start, off_t off,
982 int count, int *eof, void *data)
984 struct obd_device *obd = data;
985 struct obd_import *imp = obd->u.cli.cl_import;
988 LPROCFS_CLIMP_CHECK(obd);
989 rc = snprintf(page, count, "%d\n", !imp->imp_no_pinger_recover);
990 LPROCFS_CLIMP_EXIT(obd);
994 EXPORT_SYMBOL(lprocfs_rd_pinger_recov);
996 int lprocfs_wr_pinger_recov(struct file *file, const char *buffer,
997 unsigned long count, void *data)
999 struct obd_device *obd = data;
1000 struct client_obd *cli = &obd->u.cli;
1001 struct obd_import *imp = cli->cl_import;
1004 rc = lprocfs_write_helper(buffer, count, &val);
1008 if (val != 0 && val != 1)
1011 LPROCFS_CLIMP_CHECK(obd);
1012 cfs_spin_lock(&imp->imp_lock);
1013 imp->imp_no_pinger_recover = !val;
1014 cfs_spin_unlock(&imp->imp_lock);
1015 LPROCFS_CLIMP_EXIT(obd);
1020 EXPORT_SYMBOL(lprocfs_wr_pinger_recov);
1022 #endif /* LPROCFS */