1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2002, 2003 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.
25 #define DEBUG_SUBSYSTEM S_CLASS
27 #include <linux/version.h>
28 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
29 #include <asm/statfs.h>
31 #include <obd_class.h>
32 #include <lprocfs_status.h>
33 #include <linux/seq_file.h>
34 #include "osc_internal.h"
37 static int osc_rd_active(char *page, char **start, off_t off,
38 int count, int *eof, void *data)
40 struct obd_device *dev = data;
43 LPROCFS_CLIMP_CHECK(dev);
44 rc = snprintf(page, count, "%d\n", !dev->u.cli.cl_import->imp_deactive);
45 LPROCFS_CLIMP_EXIT(dev);
49 static int osc_wr_active(struct file *file, const char *buffer,
50 unsigned long count, void *data)
52 struct obd_device *dev = data;
55 rc = lprocfs_write_helper(buffer, count, &val);
58 if (val < 0 || val > 1)
61 LPROCFS_CLIMP_CHECK(dev);
63 if (dev->u.cli.cl_import->imp_deactive == val)
64 rc = ptlrpc_set_import_active(dev->u.cli.cl_import, val);
66 CDEBUG(D_CONFIG, "activate %d: ignoring repeat request\n", val);
68 LPROCFS_CLIMP_EXIT(dev);
72 static int osc_rd_max_pages_per_rpc(char *page, char **start, off_t off,
73 int count, int *eof, void *data)
75 struct obd_device *dev = data;
76 struct client_obd *cli = &dev->u.cli;
79 client_obd_list_lock(&cli->cl_loi_list_lock);
80 rc = snprintf(page, count, "%d\n", cli->cl_max_pages_per_rpc);
81 client_obd_list_unlock(&cli->cl_loi_list_lock);
85 static int osc_wr_max_pages_per_rpc(struct file *file, const char *buffer,
86 unsigned long count, void *data)
88 struct obd_device *dev = data;
89 struct client_obd *cli = &dev->u.cli;
90 struct obd_connect_data *ocd = &cli->cl_import->imp_connect_data;
93 rc = lprocfs_write_helper(buffer, count, &val);
97 LPROCFS_CLIMP_CHECK(dev);
98 if (val < 1 || val > ocd->ocd_brw_size >> CFS_PAGE_SHIFT) {
99 LPROCFS_CLIMP_EXIT(dev);
102 client_obd_list_lock(&cli->cl_loi_list_lock);
103 cli->cl_max_pages_per_rpc = val;
104 client_obd_list_unlock(&cli->cl_loi_list_lock);
106 LPROCFS_CLIMP_EXIT(dev);
110 static int osc_rd_max_rpcs_in_flight(char *page, char **start, off_t off,
111 int count, int *eof, void *data)
113 struct obd_device *dev = data;
114 struct client_obd *cli = &dev->u.cli;
117 client_obd_list_lock(&cli->cl_loi_list_lock);
118 rc = snprintf(page, count, "%u\n", cli->cl_max_rpcs_in_flight);
119 client_obd_list_unlock(&cli->cl_loi_list_lock);
123 static int osc_wr_max_rpcs_in_flight(struct file *file, const char *buffer,
124 unsigned long count, void *data)
126 struct obd_device *dev = data;
127 struct client_obd *cli = &dev->u.cli;
128 struct ptlrpc_request_pool *pool = cli->cl_import->imp_rq_pool;
131 rc = lprocfs_write_helper(buffer, count, &val);
135 if (val < 1 || val > OSC_MAX_RIF_MAX)
138 LPROCFS_CLIMP_CHECK(dev);
139 if (pool && val > cli->cl_max_rpcs_in_flight)
140 pool->prp_populate(pool, val-cli->cl_max_rpcs_in_flight);
142 client_obd_list_lock(&cli->cl_loi_list_lock);
143 cli->cl_max_rpcs_in_flight = val;
144 client_obd_list_unlock(&cli->cl_loi_list_lock);
146 LPROCFS_CLIMP_EXIT(dev);
150 static int osc_rd_max_dirty_mb(char *page, char **start, off_t off, int count,
151 int *eof, void *data)
153 struct obd_device *dev = data;
154 struct client_obd *cli = &dev->u.cli;
158 client_obd_list_lock(&cli->cl_loi_list_lock);
159 val = cli->cl_dirty_max;
160 client_obd_list_unlock(&cli->cl_loi_list_lock);
163 return lprocfs_read_frac_helper(page, count, val, mult);
166 static int osc_wr_max_dirty_mb(struct file *file, const char *buffer,
167 unsigned long count, void *data)
169 struct obd_device *dev = data;
170 struct client_obd *cli = &dev->u.cli;
171 int pages_number, mult, rc;
173 mult = 1 << (20 - CFS_PAGE_SHIFT);
174 rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
178 if (pages_number < 0 ||
179 pages_number > OSC_MAX_DIRTY_MB_MAX << (20 - CFS_PAGE_SHIFT) ||
180 pages_number > num_physpages / 4) /* 1/4 of RAM */
183 client_obd_list_lock(&cli->cl_loi_list_lock);
184 cli->cl_dirty_max = (obd_count)(pages_number << CFS_PAGE_SHIFT);
185 osc_wake_cache_waiters(cli);
186 client_obd_list_unlock(&cli->cl_loi_list_lock);
191 static int osc_rd_cur_dirty_bytes(char *page, char **start, off_t off,
192 int count, int *eof, void *data)
194 struct obd_device *dev = data;
195 struct client_obd *cli = &dev->u.cli;
198 client_obd_list_lock(&cli->cl_loi_list_lock);
199 rc = snprintf(page, count, "%lu\n", cli->cl_dirty);
200 client_obd_list_unlock(&cli->cl_loi_list_lock);
204 static int osc_rd_cur_grant_bytes(char *page, char **start, off_t off,
205 int count, int *eof, void *data)
207 struct obd_device *dev = data;
208 struct client_obd *cli = &dev->u.cli;
211 client_obd_list_lock(&cli->cl_loi_list_lock);
212 rc = snprintf(page, count, "%lu\n", cli->cl_avail_grant);
213 client_obd_list_unlock(&cli->cl_loi_list_lock);
217 static int osc_rd_create_count(char *page, char **start, off_t off, int count,
218 int *eof, void *data)
220 struct obd_device *obd = data;
225 return snprintf(page, count, "%d\n",
226 obd->u.cli.cl_oscc.oscc_grow_count);
229 static int osc_wr_create_count(struct file *file, const char *buffer,
230 unsigned long count, void *data)
232 struct obd_device *obd = data;
238 rc = lprocfs_write_helper(buffer, count, &val);
244 if (val > OST_MAX_PRECREATE)
247 obd->u.cli.cl_oscc.oscc_grow_count = val;
252 static int osc_rd_prealloc_next_id(char *page, char **start, off_t off,
253 int count, int *eof, void *data)
255 struct obd_device *obd = data;
260 return snprintf(page, count, LPU64"\n",
261 obd->u.cli.cl_oscc.oscc_next_id);
264 static int osc_rd_prealloc_last_id(char *page, char **start, off_t off,
265 int count, int *eof, void *data)
267 struct obd_device *obd = data;
272 return snprintf(page, count, LPU64"\n",
273 obd->u.cli.cl_oscc.oscc_last_id);
276 static int osc_rd_checksum(char *page, char **start, off_t off, int count,
277 int *eof, void *data)
279 struct obd_device *obd = data;
284 return snprintf(page, count, "%d\n",
285 obd->u.cli.cl_checksum ? 1 : 0);
288 static int osc_wr_checksum(struct file *file, const char *buffer,
289 unsigned long count, void *data)
291 struct obd_device *obd = data;
297 rc = lprocfs_write_helper(buffer, count, &val);
301 obd->u.cli.cl_checksum = (val ? 1 : 0);
306 static int osc_rd_resend_count(char *page, char **start, off_t off, int count,
307 int *eof, void *data)
309 struct obd_device *obd = data;
311 return snprintf(page, count, "%u\n", atomic_read(&obd->u.cli.cl_resends));
314 static int osc_wr_resend_count(struct file *file, const char *buffer,
315 unsigned long count, void *data)
317 struct obd_device *obd = data;
320 rc = lprocfs_write_helper(buffer, count, &val);
327 atomic_set(&obd->u.cli.cl_resends, val);
332 static struct lprocfs_vars lprocfs_obd_vars[] = {
333 { "uuid", lprocfs_rd_uuid, 0, 0 },
334 { "ping", 0, lprocfs_wr_ping, 0 },
335 { "connect_flags", lprocfs_rd_connect_flags, 0, 0 },
336 { "blocksize", lprocfs_rd_blksize, 0, 0 },
337 { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 },
338 { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 },
339 { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 },
340 { "filestotal", lprocfs_rd_filestotal, 0, 0 },
341 { "filesfree", lprocfs_rd_filesfree, 0, 0 },
342 //{ "filegroups", lprocfs_rd_filegroups, 0, 0 },
343 { "ost_server_uuid", lprocfs_rd_server_uuid, 0, 0 },
344 { "ost_conn_uuid", lprocfs_rd_conn_uuid, 0, 0 },
345 { "active", osc_rd_active,
347 { "max_pages_per_rpc", osc_rd_max_pages_per_rpc,
348 osc_wr_max_pages_per_rpc, 0 },
349 { "max_rpcs_in_flight", osc_rd_max_rpcs_in_flight,
350 osc_wr_max_rpcs_in_flight, 0 },
351 { "max_dirty_mb", osc_rd_max_dirty_mb, osc_wr_max_dirty_mb, 0 },
352 { "cur_dirty_bytes", osc_rd_cur_dirty_bytes, 0, 0 },
353 { "cur_grant_bytes", osc_rd_cur_grant_bytes, 0, 0 },
354 { "create_count", osc_rd_create_count, osc_wr_create_count, 0 },
355 { "prealloc_next_id", osc_rd_prealloc_next_id, 0, 0 },
356 { "prealloc_last_id", osc_rd_prealloc_last_id, 0, 0 },
357 { "checksums", osc_rd_checksum, osc_wr_checksum, 0 },
358 { "sptlrpc", sptlrpc_lprocfs_rd, 0, 0 },
359 { "resend_count", osc_rd_resend_count, osc_wr_resend_count, 0},
363 static struct lprocfs_vars lprocfs_module_vars[] = {
364 { "num_refs", lprocfs_rd_numrefs, 0, 0 },
368 #define pct(a,b) (b ? a * 100 / b : 0)
370 static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v)
373 struct obd_device *dev = seq->private;
374 struct client_obd *cli = &dev->u.cli;
375 unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum;
378 do_gettimeofday(&now);
380 client_obd_list_lock(&cli->cl_loi_list_lock);
382 seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
383 now.tv_sec, now.tv_usec);
384 seq_printf(seq, "read RPCs in flight: %d\n",
385 cli->cl_r_in_flight);
386 seq_printf(seq, "write RPCs in flight: %d\n",
387 cli->cl_w_in_flight);
388 seq_printf(seq, "pending write pages: %d\n",
389 cli->cl_pending_w_pages);
390 seq_printf(seq, "pending read pages: %d\n",
391 cli->cl_pending_r_pages);
393 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
394 seq_printf(seq, "pages per rpc rpcs %% cum %% |");
395 seq_printf(seq, " rpcs %% cum %%\n");
397 read_tot = lprocfs_oh_sum(&cli->cl_read_page_hist);
398 write_tot = lprocfs_oh_sum(&cli->cl_write_page_hist);
402 for (i = 0; i < OBD_HIST_MAX; i++) {
403 unsigned long r = cli->cl_read_page_hist.oh_buckets[i];
404 unsigned long w = cli->cl_write_page_hist.oh_buckets[i];
407 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
408 1 << i, r, pct(r, read_tot),
409 pct(read_cum, read_tot), w,
411 pct(write_cum, write_tot));
412 if (read_cum == read_tot && write_cum == write_tot)
416 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
417 seq_printf(seq, "rpcs in flight rpcs %% cum %% |");
418 seq_printf(seq, " rpcs %% cum %%\n");
420 read_tot = lprocfs_oh_sum(&cli->cl_read_rpc_hist);
421 write_tot = lprocfs_oh_sum(&cli->cl_write_rpc_hist);
425 for (i = 0; i < OBD_HIST_MAX; i++) {
426 unsigned long r = cli->cl_read_rpc_hist.oh_buckets[i];
427 unsigned long w = cli->cl_write_rpc_hist.oh_buckets[i];
430 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
431 i, r, pct(r, read_tot),
432 pct(read_cum, read_tot), w,
434 pct(write_cum, write_tot));
435 if (read_cum == read_tot && write_cum == write_tot)
439 seq_printf(seq, "\n\t\t\tread\t\t\twrite\n");
440 seq_printf(seq, "offset rpcs %% cum %% |");
441 seq_printf(seq, " rpcs %% cum %%\n");
443 read_tot = lprocfs_oh_sum(&cli->cl_read_offset_hist);
444 write_tot = lprocfs_oh_sum(&cli->cl_write_offset_hist);
448 for (i = 0; i < OBD_HIST_MAX; i++) {
449 unsigned long r = cli->cl_read_offset_hist.oh_buckets[i];
450 unsigned long w = cli->cl_write_offset_hist.oh_buckets[i];
453 seq_printf(seq, "%d:\t\t%10lu %3lu %3lu | %10lu %3lu %3lu\n",
454 (i == 0) ? 0 : 1 << (i - 1),
455 r, pct(r, read_tot), pct(read_cum, read_tot),
456 w, pct(w, write_tot), pct(write_cum, write_tot));
457 if (read_cum == read_tot && write_cum == write_tot)
461 client_obd_list_unlock(&cli->cl_loi_list_lock);
467 static ssize_t osc_rpc_stats_seq_write(struct file *file, const char *buf,
468 size_t len, loff_t *off)
470 struct seq_file *seq = file->private_data;
471 struct obd_device *dev = seq->private;
472 struct client_obd *cli = &dev->u.cli;
474 lprocfs_oh_clear(&cli->cl_read_rpc_hist);
475 lprocfs_oh_clear(&cli->cl_write_rpc_hist);
476 lprocfs_oh_clear(&cli->cl_read_page_hist);
477 lprocfs_oh_clear(&cli->cl_write_page_hist);
478 lprocfs_oh_clear(&cli->cl_read_offset_hist);
479 lprocfs_oh_clear(&cli->cl_write_offset_hist);
484 LPROC_SEQ_FOPS(osc_rpc_stats);
486 int lproc_osc_attach_seqstat(struct obd_device *dev)
488 return lprocfs_obd_seq_create(dev, "rpc_stats", 0444,
489 &osc_rpc_stats_fops, dev);
492 LPROCFS_INIT_VARS(osc, lprocfs_module_vars, lprocfs_obd_vars)