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_osdmap *map = client->osdc.osdmap;
58 struct rb_node *n;
59
60 if (map == NULL)
61 return 0;
62
63 seq_printf(s, "epoch %d\n", map->epoch);
64 seq_printf(s, "flags%s%s\n",
65 (map->flags & CEPH_OSDMAP_NEARFULL) ? " NEARFULL" : "",
66 (map->flags & CEPH_OSDMAP_FULL) ? " FULL" : "");
67
68 for (n = rb_first(&map->pg_pools); n; n = rb_next(n)) {
69 struct ceph_pg_pool_info *pool =
70 rb_entry(n, struct ceph_pg_pool_info, node);
71
72 seq_printf(s, "pool %lld pg_num %u (%d) read_tier %lld write_tier %lld\n",
73 pool->id, pool->pg_num, pool->pg_num_mask,
74 pool->read_tier, pool->write_tier);
75 }
76 for (i = 0; i < map->max_osd; i++) {
77 struct ceph_entity_addr *addr = &map->osd_addr[i];
78 int state = map->osd_state[i];
79 char sb[64];
80
81 seq_printf(s, "osd%d\t%s\t%3d%%\t(%s)\t%3d%%\n",
82 i, ceph_pr_addr(&addr->in_addr),
83 ((map->osd_weight[i]*100) >> 16),
84 ceph_osdmap_state_str(sb, sizeof(sb), state),
85 ((ceph_get_primary_affinity(map, i)*100) >> 16));
86 }
87 for (n = rb_first(&map->pg_temp); n; n = rb_next(n)) {
88 struct ceph_pg_mapping *pg =
89 rb_entry(n, struct ceph_pg_mapping, node);
90
91 seq_printf(s, "pg_temp %llu.%x [", pg->pgid.pool,
92 pg->pgid.seed);
93 for (i = 0; i < pg->pg_temp.len; i++)
94 seq_printf(s, "%s%d", (i == 0 ? "" : ","),
95 pg->pg_temp.osds[i]);
96 seq_printf(s, "]\n");
97 }
98 for (n = rb_first(&map->primary_temp); n; n = rb_next(n)) {
99 struct ceph_pg_mapping *pg =
100 rb_entry(n, struct ceph_pg_mapping, node);
101
102 seq_printf(s, "primary_temp %llu.%x %d\n", pg->pgid.pool,
103 pg->pgid.seed, pg->primary_temp.osd);
104 }
105
106 return 0;
107}
108
109static int monc_show(struct seq_file *s, void *p)
110{
111 struct ceph_client *client = s->private;
112 struct ceph_mon_generic_request *req;
113 struct ceph_mon_client *monc = &client->monc;
114 struct rb_node *rp;
115 int i;
116
117 mutex_lock(&monc->mutex);
118
119 for (i = 0; i < ARRAY_SIZE(monc->subs); i++) {
120 seq_printf(s, "have %s %u", ceph_sub_str[i],
121 monc->subs[i].have);
122 if (monc->subs[i].want)
123 seq_printf(s, " want %llu%s",
124 le64_to_cpu(monc->subs[i].item.start),
125 (monc->subs[i].item.flags &
126 CEPH_SUBSCRIBE_ONETIME ? "" : "+"));
127 seq_putc(s, '\n');
128 }
129
130 for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) {
131 __u16 op;
132 req = rb_entry(rp, struct ceph_mon_generic_request, node);
133 op = le16_to_cpu(req->request->hdr.type);
134 if (op == CEPH_MSG_STATFS)
135 seq_printf(s, "%llu statfs\n", req->tid);
136 else if (op == CEPH_MSG_MON_GET_VERSION)
137 seq_printf(s, "%llu mon_get_version", req->tid);
138 else
139 seq_printf(s, "%llu unknown\n", req->tid);
140 }
141
142 mutex_unlock(&monc->mutex);
143 return 0;
144}
145
146static int osdc_show(struct seq_file *s, void *pp)
147{
148 struct ceph_client *client = s->private;
149 struct ceph_osd_client *osdc = &client->osdc;
150 struct rb_node *p;
151
152 mutex_lock(&osdc->request_mutex);
153 for (p = rb_first(&osdc->requests); p; p = rb_next(p)) {
154 struct ceph_osd_request *req;
155 unsigned int i;
156 int opcode;
157
158 req = rb_entry(p, struct ceph_osd_request, r_node);
159
160 seq_printf(s, "%lld\tosd%d\t%lld.%x\t", req->r_tid,
161 req->r_osd ? req->r_osd->o_osd : -1,
162 req->r_pgid.pool, req->r_pgid.seed);
163
164 seq_printf(s, "%.*s", req->r_base_oid.name_len,
165 req->r_base_oid.name);
166
167 if (req->r_reassert_version.epoch)
168 seq_printf(s, "\t%u'%llu",
169 (unsigned int)le32_to_cpu(req->r_reassert_version.epoch),
170 le64_to_cpu(req->r_reassert_version.version));
171 else
172 seq_printf(s, "\t");
173
174 for (i = 0; i < req->r_num_ops; i++) {
175 opcode = req->r_ops[i].op;
176 seq_printf(s, "%s%s", (i == 0 ? "\t" : ","),
177 ceph_osd_op_name(opcode));
178 }
179
180 seq_printf(s, "\n");
181 }
182 mutex_unlock(&osdc->request_mutex);
183 return 0;
184}
185
186static int client_options_show(struct seq_file *s, void *p)
187{
188 struct ceph_client *client = s->private;
189 int ret;
190
191 ret = ceph_print_client_options(s, client);
192 if (ret)
193 return ret;
194
195 seq_putc(s, '\n');
196 return 0;
197}
198
199CEPH_DEFINE_SHOW_FUNC(monmap_show)
200CEPH_DEFINE_SHOW_FUNC(osdmap_show)
201CEPH_DEFINE_SHOW_FUNC(monc_show)
202CEPH_DEFINE_SHOW_FUNC(osdc_show)
203CEPH_DEFINE_SHOW_FUNC(client_options_show)
204
205int ceph_debugfs_init(void)
206{
207 ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
208 if (!ceph_debugfs_dir)
209 return -ENOMEM;
210 return 0;
211}
212
213void ceph_debugfs_cleanup(void)
214{
215 debugfs_remove(ceph_debugfs_dir);
216}
217
218int ceph_debugfs_client_init(struct ceph_client *client)
219{
220 int ret = -ENOMEM;
221 char name[80];
222
223 snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid,
224 client->monc.auth->global_id);
225
226 dout("ceph_debugfs_client_init %p %s\n", client, name);
227
228 BUG_ON(client->debugfs_dir);
229 client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
230 if (!client->debugfs_dir)
231 goto out;
232
233 client->monc.debugfs_file = debugfs_create_file("monc",
234 0600,
235 client->debugfs_dir,
236 client,
237 &monc_show_fops);
238 if (!client->monc.debugfs_file)
239 goto out;
240
241 client->osdc.debugfs_file = debugfs_create_file("osdc",
242 0600,
243 client->debugfs_dir,
244 client,
245 &osdc_show_fops);
246 if (!client->osdc.debugfs_file)
247 goto out;
248
249 client->debugfs_monmap = debugfs_create_file("monmap",
250 0600,
251 client->debugfs_dir,
252 client,
253 &monmap_show_fops);
254 if (!client->debugfs_monmap)
255 goto out;
256
257 client->debugfs_osdmap = debugfs_create_file("osdmap",
258 0600,
259 client->debugfs_dir,
260 client,
261 &osdmap_show_fops);
262 if (!client->debugfs_osdmap)
263 goto out;
264
265 client->debugfs_options = debugfs_create_file("client_options",
266 0600,
267 client->debugfs_dir,
268 client,
269 &client_options_show_fops);
270 if (!client->debugfs_options)
271 goto out;
272
273 return 0;
274
275out:
276 ceph_debugfs_client_cleanup(client);
277 return ret;
278}
279
280void ceph_debugfs_client_cleanup(struct ceph_client *client)
281{
282 dout("ceph_debugfs_client_cleanup %p\n", client);
283 debugfs_remove(client->debugfs_options);
284 debugfs_remove(client->debugfs_osdmap);
285 debugfs_remove(client->debugfs_monmap);
286 debugfs_remove(client->osdc.debugfs_file);
287 debugfs_remove(client->monc.debugfs_file);
288 debugfs_remove(client->debugfs_dir);
289}
290
291#else
292
293int ceph_debugfs_init(void)
294{
295 return 0;
296}
297
298void ceph_debugfs_cleanup(void)
299{
300}
301
302int ceph_debugfs_client_init(struct ceph_client *client)
303{
304 return 0;
305}
306
307void ceph_debugfs_client_cleanup(struct ceph_client *client)
308{
309}
310
311#endif
312
313EXPORT_SYMBOL(ceph_debugfs_init);
314EXPORT_SYMBOL(ceph_debugfs_cleanup);
315
