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
116 mutex_lock(&monc->mutex);
117
118 if (monc->have_mdsmap)
119 seq_printf(s, "have mdsmap %u\n", (unsigned int)monc->have_mdsmap);
120 if (monc->have_osdmap)
121 seq_printf(s, "have osdmap %u\n", (unsigned int)monc->have_osdmap);
122 if (monc->want_next_osdmap)
123 seq_printf(s, "want next osdmap\n");
124
125 for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) {
126 __u16 op;
127 req = rb_entry(rp, struct ceph_mon_generic_request, node);
128 op = le16_to_cpu(req->request->hdr.type);
129 if (op == CEPH_MSG_STATFS)
130 seq_printf(s, "%llu statfs\n", req->tid);
131 else if (op == CEPH_MSG_MON_GET_VERSION)
132 seq_printf(s, "%llu mon_get_version", req->tid);
133 else
134 seq_printf(s, "%llu unknown\n", req->tid);
135 }
136
137 mutex_unlock(&monc->mutex);
138 return 0;
139}
140
141static int osdc_show(struct seq_file *s, void *pp)
142{
143 struct ceph_client *client = s->private;
144 struct ceph_osd_client *osdc = &client->osdc;
145 struct rb_node *p;
146
147 mutex_lock(&osdc->request_mutex);
148 for (p = rb_first(&osdc->requests); p; p = rb_next(p)) {
149 struct ceph_osd_request *req;
150 unsigned int i;
151 int opcode;
152
153 req = rb_entry(p, struct ceph_osd_request, r_node);
154
155 seq_printf(s, "%lld\tosd%d\t%lld.%x\t", req->r_tid,
156 req->r_osd ? req->r_osd->o_osd : -1,
157 req->r_pgid.pool, req->r_pgid.seed);
158
159 seq_printf(s, "%.*s", req->r_base_oid.name_len,
160 req->r_base_oid.name);
161
162 if (req->r_reassert_version.epoch)
163 seq_printf(s, "\t%u'%llu",
164 (unsigned int)le32_to_cpu(req->r_reassert_version.epoch),
165 le64_to_cpu(req->r_reassert_version.version));
166 else
167 seq_printf(s, "\t");
168
169 for (i = 0; i < req->r_num_ops; i++) {
170 opcode = req->r_ops[i].op;
171 seq_printf(s, "%s%s", (i == 0 ? "\t" : ","),
172 ceph_osd_op_name(opcode));
173 }
174
175 seq_printf(s, "\n");
176 }
177 mutex_unlock(&osdc->request_mutex);
178 return 0;
179}
180
181static int client_options_show(struct seq_file *s, void *p)
182{
183 struct ceph_client *client = s->private;
184 int ret;
185
186 ret = ceph_print_client_options(s, client);
187 if (ret)
188 return ret;
189
190 seq_putc(s, '\n');
191 return 0;
192}
193
194CEPH_DEFINE_SHOW_FUNC(monmap_show)
195CEPH_DEFINE_SHOW_FUNC(osdmap_show)
196CEPH_DEFINE_SHOW_FUNC(monc_show)
197CEPH_DEFINE_SHOW_FUNC(osdc_show)
198CEPH_DEFINE_SHOW_FUNC(client_options_show)
199
200int ceph_debugfs_init(void)
201{
202 ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
203 if (!ceph_debugfs_dir)
204 return -ENOMEM;
205 return 0;
206}
207
208void ceph_debugfs_cleanup(void)
209{
210 debugfs_remove(ceph_debugfs_dir);
211}
212
213int ceph_debugfs_client_init(struct ceph_client *client)
214{
215 int ret = -ENOMEM;
216 char name[80];
217
218 snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid,
219 client->monc.auth->global_id);
220
221 dout("ceph_debugfs_client_init %p %s\n", client, name);
222
223 BUG_ON(client->debugfs_dir);
224 client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
225 if (!client->debugfs_dir)
226 goto out;
227
228 client->monc.debugfs_file = debugfs_create_file("monc",
229 0600,
230 client->debugfs_dir,
231 client,
232 &monc_show_fops);
233 if (!client->monc.debugfs_file)
234 goto out;
235
236 client->osdc.debugfs_file = debugfs_create_file("osdc",
237 0600,
238 client->debugfs_dir,
239 client,
240 &osdc_show_fops);
241 if (!client->osdc.debugfs_file)
242 goto out;
243
244 client->debugfs_monmap = debugfs_create_file("monmap",
245 0600,
246 client->debugfs_dir,
247 client,
248 &monmap_show_fops);
249 if (!client->debugfs_monmap)
250 goto out;
251
252 client->debugfs_osdmap = debugfs_create_file("osdmap",
253 0600,
254 client->debugfs_dir,
255 client,
256 &osdmap_show_fops);
257 if (!client->debugfs_osdmap)
258 goto out;
259
260 client->debugfs_options = debugfs_create_file("client_options",
261 0600,
262 client->debugfs_dir,
263 client,
264 &client_options_show_fops);
265 if (!client->debugfs_options)
266 goto out;
267
268 return 0;
269
270out:
271 ceph_debugfs_client_cleanup(client);
272 return ret;
273}
274
275void ceph_debugfs_client_cleanup(struct ceph_client *client)
276{
277 dout("ceph_debugfs_client_cleanup %p\n", client);
278 debugfs_remove(client->debugfs_options);
279 debugfs_remove(client->debugfs_osdmap);
280 debugfs_remove(client->debugfs_monmap);
281 debugfs_remove(client->osdc.debugfs_file);
282 debugfs_remove(client->monc.debugfs_file);
283 debugfs_remove(client->debugfs_dir);
284}
285
286#else
287
288int ceph_debugfs_init(void)
289{
290 return 0;
291}
292
293void ceph_debugfs_cleanup(void)
294{
295}
296
297int ceph_debugfs_client_init(struct ceph_client *client)
298{
299 return 0;
300}
301
302void ceph_debugfs_client_cleanup(struct ceph_client *client)
303{
304}
305
306#endif
307
308EXPORT_SYMBOL(ceph_debugfs_init);
309EXPORT_SYMBOL(ceph_debugfs_cleanup);
310
