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, 2015, Intel Corporation.
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 <obd_support.h>
41 #include <lprocfs_status.h>
42 #include <lustre/lustre_idl.h>
43 #include <lustre_net.h>
44 #include <obd_class.h>
45 #include "ptlrpc_internal.h"
48 static struct ll_rpc_opcode {
51 } ll_rpc_opcode_table[LUSTRE_MAX_OPCODES] = {
52 { OST_REPLY, "ost_reply" },
53 { OST_GETATTR, "ost_getattr" },
54 { OST_SETATTR, "ost_setattr" },
55 { OST_READ, "ost_read" },
56 { OST_WRITE, "ost_write" },
57 { OST_CREATE , "ost_create" },
58 { OST_DESTROY, "ost_destroy" },
59 { OST_GET_INFO, "ost_get_info" },
60 { OST_CONNECT, "ost_connect" },
61 { OST_DISCONNECT, "ost_disconnect" },
62 { OST_PUNCH, "ost_punch" },
63 { OST_OPEN, "ost_open" },
64 { OST_CLOSE, "ost_close" },
65 { OST_STATFS, "ost_statfs" },
66 { 14, NULL }, /* formerly OST_SAN_READ */
67 { 15, NULL }, /* formerly OST_SAN_WRITE */
68 { OST_SYNC, "ost_sync" },
69 { OST_SET_INFO, "ost_set_info" },
70 { OST_QUOTACHECK, "ost_quotacheck" },
71 { OST_QUOTACTL, "ost_quotactl" },
72 { OST_QUOTA_ADJUST_QUNIT, "ost_quota_adjust_qunit" },
73 { MDS_GETATTR, "mds_getattr" },
74 { MDS_GETATTR_NAME, "mds_getattr_lock" },
75 { MDS_CLOSE, "mds_close" },
76 { MDS_REINT, "mds_reint" },
77 { MDS_READPAGE, "mds_readpage" },
78 { MDS_CONNECT, "mds_connect" },
79 { MDS_DISCONNECT, "mds_disconnect" },
80 { MDS_GETSTATUS, "mds_getstatus" },
81 { MDS_STATFS, "mds_statfs" },
82 { MDS_PIN, "mds_pin" },
83 { MDS_UNPIN, "mds_unpin" },
84 { MDS_SYNC, "mds_sync" },
85 { MDS_DONE_WRITING, "mds_done_writing" },
86 { MDS_SET_INFO, "mds_set_info" },
87 { MDS_QUOTACHECK, "mds_quotacheck" },
88 { MDS_QUOTACTL, "mds_quotactl" },
89 { MDS_GETXATTR, "mds_getxattr" },
90 { MDS_SETXATTR, "mds_setxattr" },
91 { MDS_WRITEPAGE, "mds_writepage" },
92 { MDS_IS_SUBDIR, "mds_is_subdir" },
93 { MDS_GET_INFO, "mds_get_info" },
94 { MDS_HSM_STATE_GET, "mds_hsm_state_get" },
95 { MDS_HSM_STATE_SET, "mds_hsm_state_set" },
96 { MDS_HSM_ACTION, "mds_hsm_action" },
97 { MDS_HSM_PROGRESS, "mds_hsm_progress" },
98 { MDS_HSM_REQUEST, "mds_hsm_request" },
99 { MDS_HSM_CT_REGISTER, "mds_hsm_ct_register" },
100 { MDS_HSM_CT_UNREGISTER, "mds_hsm_ct_unregister" },
101 { MDS_SWAP_LAYOUTS, "mds_swap_layouts" },
102 { LDLM_ENQUEUE, "ldlm_enqueue" },
103 { LDLM_CONVERT, "ldlm_convert" },
104 { LDLM_CANCEL, "ldlm_cancel" },
105 { LDLM_BL_CALLBACK, "ldlm_bl_callback" },
106 { LDLM_CP_CALLBACK, "ldlm_cp_callback" },
107 { LDLM_GL_CALLBACK, "ldlm_gl_callback" },
108 { LDLM_SET_INFO, "ldlm_set_info" },
109 { MGS_CONNECT, "mgs_connect" },
110 { MGS_DISCONNECT, "mgs_disconnect" },
111 { MGS_EXCEPTION, "mgs_exception" },
112 { MGS_TARGET_REG, "mgs_target_reg" },
113 { MGS_TARGET_DEL, "mgs_target_del" },
114 { MGS_SET_INFO, "mgs_set_info" },
115 { MGS_CONFIG_READ, "mgs_config_read" },
116 { OBD_PING, "obd_ping" },
117 { OBD_LOG_CANCEL, "llog_cancel" },
118 { OBD_QC_CALLBACK, "obd_quota_callback" },
119 { OBD_IDX_READ, "dt_index_read" },
120 { LLOG_ORIGIN_HANDLE_CREATE, "llog_origin_handle_open" },
121 { LLOG_ORIGIN_HANDLE_NEXT_BLOCK, "llog_origin_handle_next_block" },
122 { LLOG_ORIGIN_HANDLE_READ_HEADER,"llog_origin_handle_read_header" },
123 { LLOG_ORIGIN_HANDLE_WRITE_REC, "llog_origin_handle_write_rec" },
124 { LLOG_ORIGIN_HANDLE_CLOSE, "llog_origin_handle_close" },
125 { LLOG_ORIGIN_CONNECT, "llog_origin_connect" },
126 { LLOG_CATINFO, "llog_catinfo" },
127 { LLOG_ORIGIN_HANDLE_PREV_BLOCK, "llog_origin_handle_prev_block" },
128 { LLOG_ORIGIN_HANDLE_DESTROY, "llog_origin_handle_destroy" },
129 { QUOTA_DQACQ, "quota_acquire" },
130 { QUOTA_DQREL, "quota_release" },
131 { SEQ_QUERY, "seq_query" },
132 { SEC_CTX_INIT, "sec_ctx_init" },
133 { SEC_CTX_INIT_CONT,"sec_ctx_init_cont" },
134 { SEC_CTX_FINI, "sec_ctx_fini" },
135 { FLD_QUERY, "fld_query" },
136 { FLD_READ, "fld_read" },
137 { OUT_UPDATE, "out_update" },
138 { LFSCK_NOTIFY, "lfsck_notify" },
139 { LFSCK_QUERY, "lfsck_query" },
142 static struct ll_eopcode {
145 } ll_eopcode_table[EXTRA_LAST_OPC] = {
146 { LDLM_GLIMPSE_ENQUEUE, "ldlm_glimpse_enqueue" },
147 { LDLM_PLAIN_ENQUEUE, "ldlm_plain_enqueue" },
148 { LDLM_EXTENT_ENQUEUE, "ldlm_extent_enqueue" },
149 { LDLM_FLOCK_ENQUEUE, "ldlm_flock_enqueue" },
150 { LDLM_IBITS_ENQUEUE, "ldlm_ibits_enqueue" },
151 { MDS_REINT_SETATTR, "mds_reint_setattr" },
152 { MDS_REINT_CREATE, "mds_reint_create" },
153 { MDS_REINT_LINK, "mds_reint_link" },
154 { MDS_REINT_UNLINK, "mds_reint_unlink" },
155 { MDS_REINT_RENAME, "mds_reint_rename" },
156 { MDS_REINT_OPEN, "mds_reint_open" },
157 { MDS_REINT_SETXATTR, "mds_reint_setxattr" },
158 { BRW_READ_BYTES, "read_bytes" },
159 { BRW_WRITE_BYTES, "write_bytes" },
162 const char *ll_opcode2str(__u32 opcode)
164 /* When one of the assertions below fail, chances are that:
165 * 1) A new opcode was added in include/lustre/lustre_idl.h,
166 * but is missing from the table above.
167 * or 2) The opcode space was renumbered or rearranged,
168 * and the opcode_offset() function in
169 * ptlrpc_internal.h needs to be modified.
171 __u32 offset = opcode_offset(opcode);
172 LASSERTF(offset < LUSTRE_MAX_OPCODES,
173 "offset %u >= LUSTRE_MAX_OPCODES %u\n",
174 offset, LUSTRE_MAX_OPCODES);
175 LASSERTF(ll_rpc_opcode_table[offset].opcode == opcode,
176 "ll_rpc_opcode_table[%u].opcode %u != opcode %u\n",
177 offset, ll_rpc_opcode_table[offset].opcode, opcode);
178 return ll_rpc_opcode_table[offset].opname;
181 static const char *ll_eopcode2str(__u32 opcode)
183 LASSERT(ll_eopcode_table[opcode].opcode == opcode);
184 return ll_eopcode_table[opcode].opname;
187 #ifdef CONFIG_PROC_FS
188 static void ptlrpc_lprocfs_register(struct proc_dir_entry *root, char *dir,
189 char *name, struct proc_dir_entry **procroot_ret,
190 struct lprocfs_stats **stats_ret)
192 struct proc_dir_entry *svc_procroot;
193 struct lprocfs_stats *svc_stats;
195 unsigned int svc_counter_config = LPROCFS_CNTR_AVGMINMAX |
198 LASSERT(*procroot_ret == NULL);
199 LASSERT(*stats_ret == NULL);
201 svc_stats = lprocfs_alloc_stats(EXTRA_MAX_OPCODES+LUSTRE_MAX_OPCODES,0);
202 if (svc_stats == NULL)
206 svc_procroot = lprocfs_register(dir, root, NULL, NULL);
207 if (IS_ERR(svc_procroot)) {
208 lprocfs_free_stats(&svc_stats);
215 lprocfs_counter_init(svc_stats, PTLRPC_REQWAIT_CNTR,
216 svc_counter_config, "req_waittime", "usec");
217 lprocfs_counter_init(svc_stats, PTLRPC_REQQDEPTH_CNTR,
218 svc_counter_config, "req_qdepth", "reqs");
219 lprocfs_counter_init(svc_stats, PTLRPC_REQACTIVE_CNTR,
220 svc_counter_config, "req_active", "reqs");
221 lprocfs_counter_init(svc_stats, PTLRPC_TIMEOUT,
222 svc_counter_config, "req_timeout", "sec");
223 lprocfs_counter_init(svc_stats, PTLRPC_REQBUF_AVAIL_CNTR,
224 svc_counter_config, "reqbuf_avail", "bufs");
225 for (i = 0; i < EXTRA_LAST_OPC; i++) {
229 case BRW_WRITE_BYTES:
237 lprocfs_counter_init(svc_stats, PTLRPC_LAST_CNTR + i,
239 ll_eopcode2str(i), units);
241 for (i = 0; i < LUSTRE_MAX_OPCODES; i++) {
242 __u32 opcode = ll_rpc_opcode_table[i].opcode;
243 lprocfs_counter_init(svc_stats,
244 EXTRA_MAX_OPCODES + i, svc_counter_config,
245 ll_opcode2str(opcode), "usec");
248 rc = lprocfs_register_stats(svc_procroot, name, svc_stats);
251 lprocfs_remove(&svc_procroot);
252 lprocfs_free_stats(&svc_stats);
255 *procroot_ret = svc_procroot;
256 *stats_ret = svc_stats;
261 ptlrpc_lprocfs_req_history_len_seq_show(struct seq_file *m, void *v)
263 struct ptlrpc_service *svc = m->private;
264 struct ptlrpc_service_part *svcpt;
268 ptlrpc_service_for_each_part(svcpt, i, svc)
269 total += svcpt->scp_hist_nrqbds;
271 return seq_printf(m, "%d\n", total);
273 LPROC_SEQ_FOPS_RO(ptlrpc_lprocfs_req_history_len);
276 ptlrpc_lprocfs_req_history_max_seq_show(struct seq_file *m, void *n)
278 struct ptlrpc_service *svc = m->private;
279 struct ptlrpc_service_part *svcpt;
283 ptlrpc_service_for_each_part(svcpt, i, svc)
284 total += svc->srv_hist_nrqbds_cpt_max;
286 return seq_printf(m, "%d\n", total);
290 ptlrpc_lprocfs_req_history_max_seq_write(struct file *file,
291 const char __user *buffer,
292 size_t count, loff_t *off)
294 struct seq_file *m = file->private_data;
295 struct ptlrpc_service *svc = m->private;
300 rc = lprocfs_write_helper(buffer, count, &val);
307 /* This sanity check is more of an insanity check; we can still
308 * hose a kernel by allowing the request history to grow too
310 bufpages = (svc->srv_buf_size + PAGE_CACHE_SIZE - 1) >>
312 if (val > totalram_pages/(2 * bufpages))
315 spin_lock(&svc->srv_lock);
318 svc->srv_hist_nrqbds_cpt_max = 0;
320 svc->srv_hist_nrqbds_cpt_max = max(1, (val / svc->srv_ncpts));
322 spin_unlock(&svc->srv_lock);
326 LPROC_SEQ_FOPS(ptlrpc_lprocfs_req_history_max);
329 ptlrpc_lprocfs_threads_min_seq_show(struct seq_file *m, void *n)
331 struct ptlrpc_service *svc = m->private;
333 return seq_printf(m, "%d\n",
334 svc->srv_nthrs_cpt_init * svc->srv_ncpts);
338 ptlrpc_lprocfs_threads_min_seq_write(struct file *file,
339 const char __user *buffer,
340 size_t count, loff_t *off)
342 struct seq_file *m = file->private_data;
343 struct ptlrpc_service *svc = m->private;
345 int rc = lprocfs_write_helper(buffer, count, &val);
350 if (val / svc->srv_ncpts < PTLRPC_NTHRS_INIT)
353 spin_lock(&svc->srv_lock);
354 if (val > svc->srv_nthrs_cpt_limit * svc->srv_ncpts) {
355 spin_unlock(&svc->srv_lock);
359 svc->srv_nthrs_cpt_init = val / svc->srv_ncpts;
361 spin_unlock(&svc->srv_lock);
365 LPROC_SEQ_FOPS(ptlrpc_lprocfs_threads_min);
368 ptlrpc_lprocfs_threads_started_seq_show(struct seq_file *m, void *n)
370 struct ptlrpc_service *svc = m->private;
371 struct ptlrpc_service_part *svcpt;
375 ptlrpc_service_for_each_part(svcpt, i, svc)
376 total += svcpt->scp_nthrs_running;
378 return seq_printf(m, "%d\n", total);
380 LPROC_SEQ_FOPS_RO(ptlrpc_lprocfs_threads_started);
383 ptlrpc_lprocfs_threads_max_seq_show(struct seq_file *m, void *n)
385 struct ptlrpc_service *svc = m->private;
387 return seq_printf(m, "%d\n",
388 svc->srv_nthrs_cpt_limit * svc->srv_ncpts);
392 ptlrpc_lprocfs_threads_max_seq_write(struct file *file,
393 const char __user *buffer,
394 size_t count, loff_t *off)
396 struct seq_file *m = file->private_data;
397 struct ptlrpc_service *svc = m->private;
399 int rc = lprocfs_write_helper(buffer, count, &val);
404 if (val / svc->srv_ncpts < PTLRPC_NTHRS_INIT)
407 spin_lock(&svc->srv_lock);
408 if (val < svc->srv_nthrs_cpt_init * svc->srv_ncpts) {
409 spin_unlock(&svc->srv_lock);
413 svc->srv_nthrs_cpt_limit = val / svc->srv_ncpts;
415 spin_unlock(&svc->srv_lock);
419 LPROC_SEQ_FOPS(ptlrpc_lprocfs_threads_max);
422 * Translates \e ptlrpc_nrs_pol_state values to human-readable strings.
424 * \param[in] state The policy state
426 static const char *nrs_state2str(enum ptlrpc_nrs_pol_state state)
431 case NRS_POL_STATE_INVALID:
433 case NRS_POL_STATE_STOPPED:
435 case NRS_POL_STATE_STOPPING:
437 case NRS_POL_STATE_STARTING:
439 case NRS_POL_STATE_STARTED:
445 * Obtains status information for \a policy.
447 * Information is copied in \a info.
449 * \param[in] policy The policy
450 * \param[out] info Holds returned status information
452 void nrs_policy_get_info_locked(struct ptlrpc_nrs_policy *policy,
453 struct ptlrpc_nrs_pol_info *info)
455 LASSERT(policy != NULL);
456 LASSERT(info != NULL);
457 assert_spin_locked(&policy->pol_nrs->nrs_lock);
459 LASSERT(sizeof(info->pi_arg) == sizeof(policy->pol_arg));
460 memcpy(info->pi_name, policy->pol_desc->pd_name, NRS_POL_NAME_MAX);
461 memcpy(info->pi_arg, policy->pol_arg, sizeof(policy->pol_arg));
463 info->pi_fallback = !!(policy->pol_flags & PTLRPC_NRS_FL_FALLBACK);
464 info->pi_state = policy->pol_state;
466 * XXX: These are accessed without holding
467 * ptlrpc_service_part::scp_req_lock.
469 info->pi_req_queued = policy->pol_req_queued;
470 info->pi_req_started = policy->pol_req_started;
474 * Reads and prints policy status information for all policies of a PTLRPC
477 static int ptlrpc_lprocfs_nrs_seq_show(struct seq_file *m, void *n)
479 struct ptlrpc_service *svc = m->private;
480 struct ptlrpc_service_part *svcpt;
481 struct ptlrpc_nrs *nrs;
482 struct ptlrpc_nrs_policy *policy;
483 struct ptlrpc_nrs_pol_info *infos;
484 struct ptlrpc_nrs_pol_info tmp;
486 unsigned pol_idx = 0;
493 * Serialize NRS core lprocfs operations with policy registration/
496 mutex_lock(&nrs_core.nrs_mutex);
499 * Use the first service partition's regular NRS head in order to obtain
500 * the number of policies registered with NRS heads of this service. All
501 * service partitions will have the same number of policies.
503 nrs = nrs_svcpt2nrs(svc->srv_parts[0], false);
505 spin_lock(&nrs->nrs_lock);
506 num_pols = svc->srv_parts[0]->scp_nrs_reg.nrs_num_pols;
507 spin_unlock(&nrs->nrs_lock);
509 OBD_ALLOC(infos, num_pols * sizeof(*infos));
511 GOTO(out, rc = -ENOMEM);
514 ptlrpc_service_for_each_part(svcpt, i, svc) {
515 nrs = nrs_svcpt2nrs(svcpt, hp);
516 spin_lock(&nrs->nrs_lock);
520 list_for_each_entry(policy, &nrs->nrs_policy_list,
522 LASSERT(pol_idx < num_pols);
524 nrs_policy_get_info_locked(policy, &tmp);
526 * Copy values when handling the first service
530 memcpy(infos[pol_idx].pi_name, tmp.pi_name,
532 memcpy(infos[pol_idx].pi_arg, tmp.pi_arg,
534 memcpy(&infos[pol_idx].pi_state, &tmp.pi_state,
535 sizeof(tmp.pi_state));
536 infos[pol_idx].pi_fallback = tmp.pi_fallback;
538 * For the rest of the service partitions
539 * sanity-check the values we get.
542 LASSERT(strncmp(infos[pol_idx].pi_name,
544 NRS_POL_NAME_MAX) == 0);
545 LASSERT(strncmp(infos[pol_idx].pi_arg,
547 sizeof(tmp.pi_arg)) == 0);
549 * Not asserting ptlrpc_nrs_pol_info::pi_state,
550 * because it may be different between
551 * instances of the same policy in different
552 * service partitions.
554 LASSERT(infos[pol_idx].pi_fallback ==
558 infos[pol_idx].pi_req_queued += tmp.pi_req_queued;
559 infos[pol_idx].pi_req_started += tmp.pi_req_started;
563 spin_unlock(&nrs->nrs_lock);
567 * Policy status information output is in YAML format.
583 * high_priority_requests:
596 seq_printf(m, "%s\n", !hp ? "\nregular_requests:" :
597 "high_priority_requests:");
599 for (pol_idx = 0; pol_idx < num_pols; pol_idx++) {
600 if (strlen(infos[pol_idx].pi_arg) > 0)
601 seq_printf(m, " - name: %s %s\n",
602 infos[pol_idx].pi_name,
603 infos[pol_idx].pi_arg);
605 seq_printf(m, " - name: %s\n",
606 infos[pol_idx].pi_name);
609 seq_printf(m, " state: %s\n"
612 " active: %-20d\n\n",
613 nrs_state2str(infos[pol_idx].pi_state),
614 infos[pol_idx].pi_fallback ? "yes" : "no",
615 (int)infos[pol_idx].pi_req_queued,
616 (int)infos[pol_idx].pi_req_started);
619 if (!hp && nrs_svc_has_hp(svc)) {
620 memset(infos, 0, num_pols * sizeof(*infos));
623 * Redo the processing for the service's HP NRS heads' policies.
631 OBD_FREE(infos, num_pols * sizeof(*infos));
633 mutex_unlock(&nrs_core.nrs_mutex);
639 #define LPROCFS_NRS_WR_MAX_ARG (1024)
641 * The longest valid command string is the maxium policy name size, plus the
642 * length of the " reg" substring, plus the lenght of argument
644 #define LPROCFS_NRS_WR_MAX_CMD (NRS_POL_NAME_MAX + sizeof(" reg") - 1 \
645 + LPROCFS_NRS_WR_MAX_ARG)
648 * Starts and stops a given policy on a PTLRPC service.
650 * Commands consist of the policy name, followed by an optional [reg|hp] token;
651 * if the optional token is omitted, the operation is performed on both the
652 * regular and high-priority (if the service has one) NRS head.
655 ptlrpc_lprocfs_nrs_seq_write(struct file *file, const char __user *buffer,
656 size_t count, loff_t *off)
658 struct seq_file *m = file->private_data;
659 struct ptlrpc_service *svc = m->private;
660 enum ptlrpc_nrs_queue_type queue = PTLRPC_NRS_QUEUE_BOTH;
662 char *cmd_copy = NULL;
668 if (count >= LPROCFS_NRS_WR_MAX_CMD)
669 GOTO(out, rc = -EINVAL);
671 OBD_ALLOC(cmd, LPROCFS_NRS_WR_MAX_CMD);
673 GOTO(out, rc = -ENOMEM);
675 * strsep() modifies its argument, so keep a copy
679 if (copy_from_user(cmd, buffer, count))
680 GOTO(out, rc = -EFAULT);
684 policy_name = strsep(&cmd, " ");
686 if (strlen(policy_name) > NRS_POL_NAME_MAX - 1)
687 GOTO(out, rc = -EINVAL);
690 * No [reg|hp] token has been specified
695 queue_name = strsep(&cmd, " ");
697 * The second token is either an optional [reg|hp] string,
700 if (strcmp(queue_name, "reg") == 0)
701 queue = PTLRPC_NRS_QUEUE_REG;
702 else if (strcmp(queue_name, "hp") == 0)
703 queue = PTLRPC_NRS_QUEUE_HP;
712 if (queue == PTLRPC_NRS_QUEUE_HP && !nrs_svc_has_hp(svc))
713 GOTO(out, rc = -ENODEV);
714 else if (queue == PTLRPC_NRS_QUEUE_BOTH && !nrs_svc_has_hp(svc))
715 queue = PTLRPC_NRS_QUEUE_REG;
718 * Serialize NRS core lprocfs operations with policy registration/
721 mutex_lock(&nrs_core.nrs_mutex);
723 rc = ptlrpc_nrs_policy_control(svc, queue, policy_name,
724 PTLRPC_NRS_CTL_START,
727 mutex_unlock(&nrs_core.nrs_mutex);
730 OBD_FREE(cmd_copy, LPROCFS_NRS_WR_MAX_CMD);
732 RETURN(rc < 0 ? rc : count);
734 LPROC_SEQ_FOPS(ptlrpc_lprocfs_nrs);
738 struct ptlrpc_srh_iterator {
741 struct ptlrpc_request *srhi_req;
745 ptlrpc_lprocfs_svc_req_history_seek(struct ptlrpc_service_part *svcpt,
746 struct ptlrpc_srh_iterator *srhi,
750 struct ptlrpc_request *req;
752 if (srhi->srhi_req != NULL &&
753 srhi->srhi_seq > svcpt->scp_hist_seq_culled &&
754 srhi->srhi_seq <= seq) {
755 /* If srhi_req was set previously, hasn't been culled and
756 * we're searching for a seq on or after it (i.e. more
757 * recent), search from it onwards.
758 * Since the service history is LRU (i.e. culled reqs will
759 * be near the head), we shouldn't have to do long
761 LASSERTF(srhi->srhi_seq == srhi->srhi_req->rq_history_seq,
762 "%s:%d: seek seq "LPU64", request seq "LPU64"\n",
763 svcpt->scp_service->srv_name, svcpt->scp_cpt,
764 srhi->srhi_seq, srhi->srhi_req->rq_history_seq);
765 LASSERTF(!list_empty(&svcpt->scp_hist_reqs),
766 "%s:%d: seek offset "LPU64", request seq "LPU64", "
767 "last culled "LPU64"\n",
768 svcpt->scp_service->srv_name, svcpt->scp_cpt,
769 seq, srhi->srhi_seq, svcpt->scp_hist_seq_culled);
770 e = &srhi->srhi_req->rq_history_list;
772 /* search from start */
773 e = svcpt->scp_hist_reqs.next;
776 while (e != &svcpt->scp_hist_reqs) {
777 req = list_entry(e, struct ptlrpc_request, rq_history_list);
779 if (req->rq_history_seq >= seq) {
780 srhi->srhi_seq = req->rq_history_seq;
781 srhi->srhi_req = req;
791 * ptlrpc history sequence is used as "position" of seq_file, in some case,
792 * seq_read() will increase "position" to indicate reading the next
793 * element, however, low bits of history sequence are reserved for CPT id
794 * (check the details from comments before ptlrpc_req_add_history), which
795 * means seq_read() might change CPT id of history sequence and never
796 * finish reading of requests on a CPT. To make it work, we have to shift
797 * CPT id to high bits and timestamp to low bits, so seq_read() will only
798 * increase timestamp which can correctly indicate the next position.
801 /* convert seq_file pos to cpt */
802 #define PTLRPC_REQ_POS2CPT(svc, pos) \
803 ((svc)->srv_cpt_bits == 0 ? 0 : \
804 (__u64)(pos) >> (64 - (svc)->srv_cpt_bits))
806 /* make up seq_file pos from cpt */
807 #define PTLRPC_REQ_CPT2POS(svc, cpt) \
808 ((svc)->srv_cpt_bits == 0 ? 0 : \
809 (cpt) << (64 - (svc)->srv_cpt_bits))
811 /* convert sequence to position */
812 #define PTLRPC_REQ_SEQ2POS(svc, seq) \
813 ((svc)->srv_cpt_bits == 0 ? (seq) : \
814 ((seq) >> (svc)->srv_cpt_bits) | \
815 ((seq) << (64 - (svc)->srv_cpt_bits)))
817 /* convert position to sequence */
818 #define PTLRPC_REQ_POS2SEQ(svc, pos) \
819 ((svc)->srv_cpt_bits == 0 ? (pos) : \
820 ((__u64)(pos) << (svc)->srv_cpt_bits) | \
821 ((__u64)(pos) >> (64 - (svc)->srv_cpt_bits)))
824 ptlrpc_lprocfs_svc_req_history_start(struct seq_file *s, loff_t *pos)
826 struct ptlrpc_service *svc = s->private;
827 struct ptlrpc_service_part *svcpt;
828 struct ptlrpc_srh_iterator *srhi;
833 if (sizeof(loff_t) != sizeof(__u64)) { /* can't support */
834 CWARN("Failed to read request history because size of loff_t "
835 "%d can't match size of u64\n", (int)sizeof(loff_t));
839 OBD_ALLOC(srhi, sizeof(*srhi));
844 srhi->srhi_req = NULL;
846 cpt = PTLRPC_REQ_POS2CPT(svc, *pos);
848 ptlrpc_service_for_each_part(svcpt, i, svc) {
849 if (i < cpt) /* skip */
851 if (i > cpt) /* make up the lowest position for this CPT */
852 *pos = PTLRPC_REQ_CPT2POS(svc, i);
854 spin_lock(&svcpt->scp_lock);
855 rc = ptlrpc_lprocfs_svc_req_history_seek(svcpt, srhi,
856 PTLRPC_REQ_POS2SEQ(svc, *pos));
857 spin_unlock(&svcpt->scp_lock);
859 *pos = PTLRPC_REQ_SEQ2POS(svc, srhi->srhi_seq);
865 OBD_FREE(srhi, sizeof(*srhi));
870 ptlrpc_lprocfs_svc_req_history_stop(struct seq_file *s, void *iter)
872 struct ptlrpc_srh_iterator *srhi = iter;
875 OBD_FREE(srhi, sizeof(*srhi));
879 ptlrpc_lprocfs_svc_req_history_next(struct seq_file *s,
880 void *iter, loff_t *pos)
882 struct ptlrpc_service *svc = s->private;
883 struct ptlrpc_srh_iterator *srhi = iter;
884 struct ptlrpc_service_part *svcpt;
889 for (i = srhi->srhi_idx; i < svc->srv_ncpts; i++) {
890 svcpt = svc->srv_parts[i];
892 if (i > srhi->srhi_idx) { /* reset iterator for a new CPT */
893 srhi->srhi_req = NULL;
894 seq = srhi->srhi_seq = 0;
895 } else { /* the next sequence */
896 seq = srhi->srhi_seq + (1 << svc->srv_cpt_bits);
899 spin_lock(&svcpt->scp_lock);
900 rc = ptlrpc_lprocfs_svc_req_history_seek(svcpt, srhi, seq);
901 spin_unlock(&svcpt->scp_lock);
903 *pos = PTLRPC_REQ_SEQ2POS(svc, srhi->srhi_seq);
909 OBD_FREE(srhi, sizeof(*srhi));
913 /* common ost/mdt so_req_printer */
914 void target_print_req(void *seq_file, struct ptlrpc_request *req)
916 /* Called holding srv_lock with irqs disabled.
917 * Print specific req contents and a newline.
918 * CAVEAT EMPTOR: check request message length before printing!!!
919 * You might have received any old crap so you must be just as
920 * careful here as the service's request parser!!! */
921 struct seq_file *sf = seq_file;
923 switch (req->rq_phase) {
925 /* still awaiting a service thread's attention, or rejected
926 * because the generic request message didn't unpack */
927 seq_printf(sf, "<not swabbed>\n");
929 case RQ_PHASE_INTERPRET:
930 /* being handled, so basic msg swabbed, and opc is valid
931 * but racing with mds_handle() */
932 case RQ_PHASE_COMPLETE:
933 /* been handled by mds_handle() reply state possibly still
935 seq_printf(sf, "opc %d\n", lustre_msg_get_opc(req->rq_reqmsg));
938 DEBUG_REQ(D_ERROR, req, "bad phase %d", req->rq_phase);
941 EXPORT_SYMBOL(target_print_req);
943 static int ptlrpc_lprocfs_svc_req_history_show(struct seq_file *s, void *iter)
945 struct ptlrpc_service *svc = s->private;
946 struct ptlrpc_srh_iterator *srhi = iter;
947 struct ptlrpc_service_part *svcpt;
948 struct ptlrpc_request *req;
951 LASSERT(srhi->srhi_idx < svc->srv_ncpts);
953 svcpt = svc->srv_parts[srhi->srhi_idx];
955 spin_lock(&svcpt->scp_lock);
957 rc = ptlrpc_lprocfs_svc_req_history_seek(svcpt, srhi, srhi->srhi_seq);
960 char nidstr[LNET_NIDSTR_SIZE];
962 req = srhi->srhi_req;
964 libcfs_nid2str_r(req->rq_self, nidstr, sizeof(nidstr));
965 /* Print common req fields.
966 * CAVEAT EMPTOR: we're racing with the service handler
967 * here. The request could contain any old crap, so you
968 * must be just as careful as the service's request
969 * parser. Currently I only print stuff here I know is OK
970 * to look at coz it was set up in request_in_callback()!!! */
971 seq_printf(s, LPD64":%s:%s:x"LPU64":%d:%s:%ld:%lds(%+lds) ",
972 req->rq_history_seq, nidstr,
973 libcfs_id2str(req->rq_peer), req->rq_xid,
974 req->rq_reqlen, ptlrpc_rqphase2str(req),
975 req->rq_arrival_time.tv_sec,
976 req->rq_sent - req->rq_arrival_time.tv_sec,
977 req->rq_sent - req->rq_deadline);
978 if (svc->srv_ops.so_req_printer == NULL)
981 svc->srv_ops.so_req_printer(s, srhi->srhi_req);
984 spin_unlock(&svcpt->scp_lock);
989 ptlrpc_lprocfs_svc_req_history_open(struct inode *inode, struct file *file)
991 static struct seq_operations sops = {
992 .start = ptlrpc_lprocfs_svc_req_history_start,
993 .stop = ptlrpc_lprocfs_svc_req_history_stop,
994 .next = ptlrpc_lprocfs_svc_req_history_next,
995 .show = ptlrpc_lprocfs_svc_req_history_show,
997 struct seq_file *seqf;
1000 rc = LPROCFS_ENTRY_CHECK(inode);
1004 rc = seq_open(file, &sops);
1008 seqf = file->private_data;
1009 seqf->private = PDE_DATA(inode);
1013 /* See also lprocfs_rd_timeouts */
1014 static int ptlrpc_lprocfs_timeouts_seq_show(struct seq_file *m, void *n)
1016 struct ptlrpc_service *svc = m->private;
1017 struct ptlrpc_service_part *svcpt;
1025 seq_printf(m, "adaptive timeouts off, using obd_timeout %u\n",
1030 ptlrpc_service_for_each_part(svcpt, i, svc) {
1031 cur = at_get(&svcpt->scp_at_estimate);
1032 worst = svcpt->scp_at_estimate.at_worst_ever;
1033 worstt = svcpt->scp_at_estimate.at_worst_time;
1034 s2dhms(&ts, cfs_time_current_sec() - worstt);
1036 seq_printf(m, "%10s : cur %3u worst %3u (at %ld, "
1037 DHMS_FMT" ago) ", "service",
1038 cur, worst, worstt, DHMS_VARS(&ts));
1040 lprocfs_at_hist_helper(m, &svcpt->scp_at_estimate);
1045 LPROC_SEQ_FOPS_RO(ptlrpc_lprocfs_timeouts);
1047 static int ptlrpc_lprocfs_hp_ratio_seq_show(struct seq_file *m, void *v)
1049 struct ptlrpc_service *svc = m->private;
1050 return seq_printf(m, "%d\n", svc->srv_hpreq_ratio);
1054 ptlrpc_lprocfs_hp_ratio_seq_write(struct file *file, const char __user *buffer,
1055 size_t count, loff_t *off)
1057 struct seq_file *m = file->private_data;
1058 struct ptlrpc_service *svc = m->private;
1062 rc = lprocfs_write_helper(buffer, count, &val);
1069 spin_lock(&svc->srv_lock);
1070 svc->srv_hpreq_ratio = val;
1071 spin_unlock(&svc->srv_lock);
1075 LPROC_SEQ_FOPS(ptlrpc_lprocfs_hp_ratio);
1077 void ptlrpc_lprocfs_register_service(struct proc_dir_entry *entry,
1078 struct ptlrpc_service *svc)
1080 struct lprocfs_vars lproc_vars[] = {
1081 { .name = "high_priority_ratio",
1082 .fops = &ptlrpc_lprocfs_hp_ratio_fops,
1084 { .name = "req_buffer_history_len",
1085 .fops = &ptlrpc_lprocfs_req_history_len_fops,
1087 { .name = "req_buffer_history_max",
1088 .fops = &ptlrpc_lprocfs_req_history_max_fops,
1090 { .name = "threads_min",
1091 .fops = &ptlrpc_lprocfs_threads_min_fops,
1093 { .name = "threads_max",
1094 .fops = &ptlrpc_lprocfs_threads_max_fops,
1096 { .name = "threads_started",
1097 .fops = &ptlrpc_lprocfs_threads_started_fops,
1099 { .name = "timeouts",
1100 .fops = &ptlrpc_lprocfs_timeouts_fops,
1102 { .name = "nrs_policies",
1103 .fops = &ptlrpc_lprocfs_nrs_fops,
1107 static struct file_operations req_history_fops = {
1108 .owner = THIS_MODULE,
1109 .open = ptlrpc_lprocfs_svc_req_history_open,
1111 .llseek = seq_lseek,
1112 .release = lprocfs_seq_release,
1117 ptlrpc_lprocfs_register(entry, svc->srv_name,
1118 "stats", &svc->srv_procroot,
1120 if (svc->srv_procroot == NULL)
1123 lprocfs_add_vars(svc->srv_procroot, lproc_vars, NULL);
1125 rc = lprocfs_seq_create(svc->srv_procroot, "req_history",
1126 0400, &req_history_fops, svc);
1128 CWARN("Error adding the req_history file\n");
1131 void ptlrpc_lprocfs_register_obd(struct obd_device *obddev)
1133 ptlrpc_lprocfs_register(obddev->obd_proc_entry, NULL, "stats",
1134 &obddev->obd_svc_procroot,
1135 &obddev->obd_svc_stats);
1137 EXPORT_SYMBOL(ptlrpc_lprocfs_register_obd);
1139 void ptlrpc_lprocfs_rpc_sent(struct ptlrpc_request *req, long amount)
1141 struct lprocfs_stats *svc_stats;
1142 __u32 op = lustre_msg_get_opc(req->rq_reqmsg);
1143 int opc = opcode_offset(op);
1145 svc_stats = req->rq_import->imp_obd->obd_svc_stats;
1146 if (svc_stats == NULL || opc <= 0)
1148 LASSERT(opc < LUSTRE_MAX_OPCODES);
1149 if (!(op == LDLM_ENQUEUE || op == MDS_REINT))
1150 lprocfs_counter_add(svc_stats, opc + EXTRA_MAX_OPCODES, amount);
1153 void ptlrpc_lprocfs_brw(struct ptlrpc_request *req, int bytes)
1155 struct lprocfs_stats *svc_stats;
1158 if (!req->rq_import)
1160 svc_stats = req->rq_import->imp_obd->obd_svc_stats;
1163 idx = lustre_msg_get_opc(req->rq_reqmsg);
1166 idx = BRW_READ_BYTES + PTLRPC_LAST_CNTR;
1169 idx = BRW_WRITE_BYTES + PTLRPC_LAST_CNTR;
1172 LASSERTF(0, "unsupported opcode %u\n", idx);
1176 lprocfs_counter_add(svc_stats, idx, bytes);
1179 EXPORT_SYMBOL(ptlrpc_lprocfs_brw);
1181 void ptlrpc_lprocfs_unregister_service(struct ptlrpc_service *svc)
1183 if (svc->srv_procroot != NULL)
1184 lprocfs_remove(&svc->srv_procroot);
1187 lprocfs_free_stats(&svc->srv_stats);
1190 void ptlrpc_lprocfs_unregister_obd(struct obd_device *obd)
1192 if (obd->obd_svc_procroot)
1193 lprocfs_remove(&obd->obd_svc_procroot);
1195 if (obd->obd_svc_stats)
1196 lprocfs_free_stats(&obd->obd_svc_stats);
1198 EXPORT_SYMBOL(ptlrpc_lprocfs_unregister_obd);
1201 lprocfs_ping_seq_write(struct file *file, const char *buffer,
1202 size_t count, loff_t *off)
1204 struct seq_file *m = file->private_data;
1205 struct obd_device *obd = m->private;
1206 struct ptlrpc_request *req;
1210 LPROCFS_CLIMP_CHECK(obd);
1211 req = ptlrpc_prep_ping(obd->u.cli.cl_import);
1212 LPROCFS_CLIMP_EXIT(obd);
1216 req->rq_send_state = LUSTRE_IMP_FULL;
1218 rc = ptlrpc_queue_wait(req);
1220 ptlrpc_req_finished(req);
1225 EXPORT_SYMBOL(lprocfs_ping_seq_write);
1227 /* Write the connection UUID to this file to attempt to connect to that node.
1228 * The connection UUID is a node's primary NID. For example,
1229 * "echo connection=192.168.0.1@tcp0::instance > .../import".
1232 lprocfs_import_seq_write(struct file *file, const char __user *buffer,
1233 size_t count, loff_t *off)
1235 struct seq_file *m = file->private_data;
1236 struct obd_device *obd = m->private;
1237 struct obd_import *imp = obd->u.cli.cl_import;
1242 const char prefix[] = "connection=";
1243 const int prefix_len = sizeof(prefix) - 1;
1245 if (count > PAGE_CACHE_SIZE - 1 || count <= prefix_len)
1248 OBD_ALLOC(kbuf, count + 1);
1252 if (copy_from_user(kbuf, buffer, count))
1253 GOTO(out, count = -EFAULT);
1257 /* only support connection=uuid::instance now */
1258 if (strncmp(prefix, kbuf, prefix_len) != 0)
1259 GOTO(out, count = -EINVAL);
1261 uuid = kbuf + prefix_len;
1262 ptr = strstr(uuid, "::");
1269 ptr += 2; /* Skip :: */
1270 inst = simple_strtol(ptr, &endptr, 10);
1272 CERROR("config: wrong instance # %s\n", ptr);
1273 } else if (inst != imp->imp_connect_data.ocd_instance) {
1274 CDEBUG(D_INFO, "IR: %s is connecting to an obsoleted "
1275 "target(%u/%u), reconnecting...\n",
1276 imp->imp_obd->obd_name,
1277 imp->imp_connect_data.ocd_instance, inst);
1280 CDEBUG(D_INFO, "IR: %s has already been connecting to "
1282 imp->imp_obd->obd_name, inst);
1287 ptlrpc_recover_import(imp, uuid, 1);
1290 OBD_FREE(kbuf, count + 1);
1293 EXPORT_SYMBOL(lprocfs_import_seq_write);
1295 int lprocfs_pinger_recov_seq_show(struct seq_file *m, void *n)
1297 struct obd_device *obd = m->private;
1298 struct obd_import *imp = obd->u.cli.cl_import;
1301 LPROCFS_CLIMP_CHECK(obd);
1302 rc = seq_printf(m, "%d\n", !imp->imp_no_pinger_recover);
1303 LPROCFS_CLIMP_EXIT(obd);
1306 EXPORT_SYMBOL(lprocfs_pinger_recov_seq_show);
1309 lprocfs_pinger_recov_seq_write(struct file *file, const char *buffer,
1310 size_t count, loff_t *off)
1312 struct seq_file *m = file->private_data;
1313 struct obd_device *obd = m->private;
1314 struct client_obd *cli = &obd->u.cli;
1315 struct obd_import *imp = cli->cl_import;
1318 rc = lprocfs_write_helper(buffer, count, &val);
1322 if (val != 0 && val != 1)
1325 LPROCFS_CLIMP_CHECK(obd);
1326 spin_lock(&imp->imp_lock);
1327 imp->imp_no_pinger_recover = !val;
1328 spin_unlock(&imp->imp_lock);
1329 LPROCFS_CLIMP_EXIT(obd);
1332 EXPORT_SYMBOL(lprocfs_pinger_recov_seq_write);
1334 #endif /* CONFIG_PROC_FS */