1#include <linux/ceph/ceph_debug.h>
2
3#include <linux/device.h>
4#include <linux/slab.h>
5#include <linux/module.h>
6#include <linux/ctype.h>
7#include <linux/debugfs.h>
8#include <linux/seq_file.h>
9
10#include <linux/ceph/libceph.h>
11#include <linux/ceph/mon_client.h>
12#include <linux/ceph/auth.h>
13#include <linux/ceph/debugfs.h>
14
15#ifdef CONFIG_DEBUG_FS
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31static struct dentry *ceph_debugfs_dir;
32
33static int monmap_show(struct seq_file *s, void *p)
34{
35 int i;
36 struct ceph_client *client = s->private;
37
38 if (client->monc.monmap == NULL)
39 return 0;
40
41 seq_printf(s, "epoch %d\n", client->monc.monmap->epoch);
42 for (i = 0; i < client->monc.monmap->num_mon; i++) {
43 struct ceph_entity_inst *inst =
44 &client->monc.monmap->mon_inst[i];
45
46 seq_printf(s, "\t%s%lld\t%s\n",
47 ENTITY_NAME(inst->name),
48 ceph_pr_addr(&inst->addr.in_addr));
49 }
50 return 0;
51}
52
53static int osdmap_show(struct seq_file *s, void *p)
54{
55 int i;
56 struct ceph_client *client = s->private;
57 struct ceph_osd_client *osdc = &client->osdc;
58 struct ceph_osdmap *map = osdc->osdmap;
59 struct rb_node *n;
60
61 if (map == NULL)
62 return 0;
63
64 down_read(&osdc->lock);
65 seq_printf(s, "epoch %d flags 0x%x\n", map->epoch, map->flags);
66
67 for (n = rb_first(&map->pg_pools); n; n = rb_next(n)) {
68 struct ceph_pg_pool_info *pi =
69 rb_entry(n, struct ceph_pg_pool_info, node);
70
71 seq_printf(s, "pool %lld '%s' type %d size %d min_size %d pg_num %u pg_num_mask %d flags 0x%llx lfor %u read_tier %lld write_tier %lld\n",
72 pi->id, pi->name, pi->type, pi->size, pi->min_size,
73 pi->pg_num, pi->pg_num_mask, pi->flags,
74 pi->last_force_request_resend, pi->read_tier,
75 pi->write_tier);
76 }
77 for (i = 0; i < map->max_osd; i++) {
78 struct ceph_entity_addr *addr = &map->osd_addr[i];
79 int state = map->osd_state[i];
80 char sb[64];
81
82 seq_printf(s, "osd%d\t%s\t%3d%%\t(%s)\t%3d%%\n",
83 i, ceph_pr_addr(&addr->in_addr),
84 ((map->osd_weight[i]*100) >> 16),
85 ceph_osdmap_state_str(sb, sizeof(sb), state),
86 ((ceph_get_primary_affinity(map, i)*100) >> 16));
87 }
88 for (n = rb_first(&map->pg_temp); n; n = rb_next(n)) {
89 struct ceph_pg_mapping *pg =
90 rb_entry(n, struct ceph_pg_mapping, node);
91
92 seq_printf(s, "pg_temp %llu.%x [", pg->pgid.pool,
93 pg->pgid.seed);
94 for (i = 0; i < pg->pg_temp.len; i++)
95 seq_printf(s, "%s%d", (i == 0 ? "" : ","),
96 pg->pg_temp.osds[i]);
97 seq_printf(s, "]\n");
98 }
99 for (n = rb_first(&map->primary_temp); n; n = rb_next(n)) {
100 struct ceph_pg_mapping *pg =
101 rb_entry(n, struct ceph_pg_mapping, node);
102
103 seq_printf(s, "primary_temp %llu.%x %d\n", pg->pgid.pool,
104 pg->pgid.seed, pg->primary_temp.osd);
105 }
106
107 up_read(&osdc->lock);
108 return 0;
109}
110
111static int monc_show(struct seq_file *s, void *p)
112{
113 struct ceph_client *client = s->private;
114 struct ceph_mon_generic_request *req;
115 struct ceph_mon_client *monc = &client->monc;
116 struct rb_node *rp;
117 int i;
118
119 mutex_lock(&monc->mutex);
120
121 for (i = 0; i < ARRAY_SIZE(monc->subs); i++) {
122 seq_printf(s, "have %s %u", ceph_sub_str[i],
123 monc->subs[i].have);
124 if (monc->subs[i].want)
125 seq_printf(s, " want %llu%s",
126 le64_to_cpu(monc->subs[i].item.start),
127 (monc->subs[i].item.flags &
128 CEPH_SUBSCRIBE_ONETIME ? "" : "+"));
129 seq_putc(s, '\n');
130 }
131 seq_printf(s, "fs_cluster_id %d\n", monc->fs_cluster_id);
132
133 for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) {
134 __u16 op;
135 req = rb_entry(rp, struct ceph_mon_generic_request, node);
136 op = le16_to_cpu(req->request->hdr.type);
137 if (op == CEPH_MSG_STATFS)
138 seq_printf(s, "%llu statfs\n", req->tid);
139 else if (op == CEPH_MSG_MON_GET_VERSION)
140 seq_printf(s, "%llu mon_get_version", req->tid);
141 else
142 seq_printf(s, "%llu unknown\n", req->tid);
143 }
144
145 mutex_unlock(&monc->mutex);
146 return 0;
147}
148
149static void dump_target(struct seq_file *s, struct ceph_osd_request_target *t)
150{
151 int i;
152
153 seq_printf(s, "osd%d\t%llu.%x\t[", t->osd, t->pgid.pool, t->pgid.seed);
154 for (i = 0; i < t->up.size; i++)
155 seq_printf(s, "%s%d", (!i ? "" : ","), t->up.osds[i]);
156 seq_printf(s, "]/%d\t[", t->up.primary);
157 for (i = 0; i < t->acting.size; i++)
158 seq_printf(s, "%s%d", (!i ? "" : ","), t->acting.osds[i]);
159 seq_printf(s, "]/%d\t", t->acting.primary);
160 if (t->target_oloc.pool_ns) {
161 seq_printf(s, "%*pE/%*pE\t0x%x",
162 (int)t->target_oloc.pool_ns->len,
163 t->target_oloc.pool_ns->str,
164 t->target_oid.name_len, t->target_oid.name, t->flags);
165 } else {
166 seq_printf(s, "%*pE\t0x%x", t->target_oid.name_len,
167 t->target_oid.name, t->flags);
168 }
169 if (t->paused)
170 seq_puts(s, "\tP");
171}
172
173static void dump_request(struct seq_file *s, struct ceph_osd_request *req)
174{
175 int i;
176
177 seq_printf(s, "%llu\t", req->r_tid);
178 dump_target(s, &req->r_t);
179
180 seq_printf(s, "\t%d\t%u'%llu", req->r_attempts,
181 le32_to_cpu(req->r_replay_version.epoch),
182 le64_to_cpu(req->r_replay_version.version));
183
184 for (i = 0; i < req->r_num_ops; i++) {
185 struct ceph_osd_req_op *op = &req->r_ops[i];
186
187 seq_printf(s, "%s%s", (i == 0 ? "\t" : ","),
188 ceph_osd_op_name(op->op));
189 if (op->op == CEPH_OSD_OP_WATCH)
190 seq_printf(s, "-%s",
191 ceph_osd_watch_op_name(op->watch.op));
192 }
193
194 seq_putc(s, '\n');
195}
196
197static void dump_requests(struct seq_file *s, struct ceph_osd *osd)
198{
199 struct rb_node *n;
200
201 mutex_lock(&osd->lock);
202 for (n = rb_first(&osd->o_requests); n; n = rb_next(n)) {
203 struct ceph_osd_request *req =
204 rb_entry(n, struct ceph_osd_request, r_node);
205
206 dump_request(s, req);
207 }
208
209 mutex_unlock(&osd->lock);
210}
211
212static void dump_linger_request(struct seq_file *s,
213 struct ceph_osd_linger_request *lreq)
214{
215 seq_printf(s, "%llu\t", lreq->linger_id);
216 dump_target(s, &lreq->t);
217
218 seq_printf(s, "\t%u\t%s%s/%d\n", lreq->register_gen,
219 lreq->is_watch ? "W" : "N", lreq->committed ? "C" : "",
220 lreq->last_error);
221}
222
223static void dump_linger_requests(struct seq_file *s, struct ceph_osd *osd)
224{
225 struct rb_node *n;
226
227 mutex_lock(&osd->lock);
228 for (n = rb_first(&osd->o_linger_requests); n; n = rb_next(n)) {
229 struct ceph_osd_linger_request *lreq =
230 rb_entry(n, struct ceph_osd_linger_request, node);
231
232 dump_linger_request(s, lreq);
233 }
234
235 mutex_unlock(&osd->lock);
236}
237
238static int osdc_show(struct seq_file *s, void *pp)
239{
240 struct ceph_client *client = s->private;
241 struct ceph_osd_client *osdc = &client->osdc;
242 struct rb_node *n;
243
244 down_read(&osdc->lock);
245 seq_printf(s, "REQUESTS %d homeless %d\n",
246 atomic_read(&osdc->num_requests),
247 atomic_read(&osdc->num_homeless));
248 for (n = rb_first(&osdc->osds); n; n = rb_next(n)) {
249 struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node);
250
251 dump_requests(s, osd);
252 }
253 dump_requests(s, &osdc->homeless_osd);
254
255 seq_puts(s, "LINGER REQUESTS\n");
256 for (n = rb_first(&osdc->osds); n; n = rb_next(n)) {
257 struct ceph_osd *osd = rb_entry(n, struct ceph_osd, o_node);
258
259 dump_linger_requests(s, osd);
260 }
261 dump_linger_requests(s, &osdc->homeless_osd);
262
263 up_read(&osdc->lock);
264 return 0;
265}
266
267static int client_options_show(struct seq_file *s, void *p)
268{
269 struct ceph_client *client = s->private;
270 int ret;
271
272 ret = ceph_print_client_options(s, client);
273 if (ret)
274 return ret;
275
276 seq_putc(s, '\n');
277 return 0;
278}
279
280CEPH_DEFINE_SHOW_FUNC(monmap_show)
281CEPH_DEFINE_SHOW_FUNC(osdmap_show)
282CEPH_DEFINE_SHOW_FUNC(monc_show)
283CEPH_DEFINE_SHOW_FUNC(osdc_show)
284CEPH_DEFINE_SHOW_FUNC(client_options_show)
285
286int ceph_debugfs_init(void)
287{
288 ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
289 if (!ceph_debugfs_dir)
290 return -ENOMEM;
291 return 0;
292}
293
294void ceph_debugfs_cleanup(void)
295{
296 debugfs_remove(ceph_debugfs_dir);
297}
298
299int ceph_debugfs_client_init(struct ceph_client *client)
300{
301 int ret = -ENOMEM;
302 char name[80];
303
304 snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid,
305 client->monc.auth->global_id);
306
307 dout("ceph_debugfs_client_init %p %s\n", client, name);
308
309 BUG_ON(client->debugfs_dir);
310 client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
311 if (!client->debugfs_dir)
312 goto out;
313
314 client->monc.debugfs_file = debugfs_create_file("monc",
315 0600,
316 client->debugfs_dir,
317 client,
318 &monc_show_fops);
319 if (!client->monc.debugfs_file)
320 goto out;
321
322 client->osdc.debugfs_file = debugfs_create_file("osdc",
323 0600,
324 client->debugfs_dir,
325 client,
326 &osdc_show_fops);
327 if (!client->osdc.debugfs_file)
328 goto out;
329
330 client->debugfs_monmap = debugfs_create_file("monmap",
331 0600,
332 client->debugfs_dir,
333 client,
334 &monmap_show_fops);
335 if (!client->debugfs_monmap)
336 goto out;
337
338 client->debugfs_osdmap = debugfs_create_file("osdmap",
339 0600,
340 client->debugfs_dir,
341 client,
342 &osdmap_show_fops);
343 if (!client->debugfs_osdmap)
344 goto out;
345
346 client->debugfs_options = debugfs_create_file("client_options",
347 0600,
348 client->debugfs_dir,
349 client,
350 &client_options_show_fops);
351 if (!client->debugfs_options)
352 goto out;
353
354 return 0;
355
356out:
357 ceph_debugfs_client_cleanup(client);
358 return ret;
359}
360
361void ceph_debugfs_client_cleanup(struct ceph_client *client)
362{
363 dout("ceph_debugfs_client_cleanup %p\n", client);
364 debugfs_remove(client->debugfs_options);
365 debugfs_remove(client->debugfs_osdmap);
366 debugfs_remove(client->debugfs_monmap);
367 debugfs_remove(client->osdc.debugfs_file);
368 debugfs_remove(client->monc.debugfs_file);
369 debugfs_remove(client->debugfs_dir);
370}
371
372#else
373
374int ceph_debugfs_init(void)
375{
376 return 0;
377}
378
379void ceph_debugfs_cleanup(void)
380{
381}
382
383int ceph_debugfs_client_init(struct ceph_client *client)
384{
385 return 0;
386}
387
388void ceph_debugfs_client_cleanup(struct ceph_client *client)
389{
390}
391
392#endif
393
394EXPORT_SYMBOL(ceph_debugfs_init);
395EXPORT_SYMBOL(ceph_debugfs_cleanup);
396
