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
30static struct dentry *ceph_debugfs_dir;
31
32static int monmap_show(struct seq_file *s, void *p)
33{
34 int i;
35 struct ceph_client *client = s->private;
36
37 if (client->monc.monmap == NULL)
38 return 0;
39
40 seq_printf(s, "epoch %d\n", client->monc.monmap->epoch);
41 for (i = 0; i < client->monc.monmap->num_mon; i++) {
42 struct ceph_entity_inst *inst =
43 &client->monc.monmap->mon_inst[i];
44
45 seq_printf(s, "\t%s%lld\t%s\n",
46 ENTITY_NAME(inst->name),
47 ceph_pr_addr(&inst->addr.in_addr));
48 }
49 return 0;
50}
51
52static int osdmap_show(struct seq_file *s, void *p)
53{
54 int i;
55 struct ceph_client *client = s->private;
56 struct rb_node *n;
57
58 if (client->osdc.osdmap == NULL)
59 return 0;
60 seq_printf(s, "epoch %d\n", client->osdc.osdmap->epoch);
61 seq_printf(s, "flags%s%s\n",
62 (client->osdc.osdmap->flags & CEPH_OSDMAP_NEARFULL) ?
63 " NEARFULL" : "",
64 (client->osdc.osdmap->flags & CEPH_OSDMAP_FULL) ?
65 " FULL" : "");
66 for (n = rb_first(&client->osdc.osdmap->pg_pools); n; n = rb_next(n)) {
67 struct ceph_pg_pool_info *pool =
68 rb_entry(n, struct ceph_pg_pool_info, node);
69 seq_printf(s, "pg_pool %d pg_num %d / %d, lpg_num %d / %d\n",
70 pool->id, pool->v.pg_num, pool->pg_num_mask,
71 pool->v.lpg_num, pool->lpg_num_mask);
72 }
73 for (i = 0; i < client->osdc.osdmap->max_osd; i++) {
74 struct ceph_entity_addr *addr =
75 &client->osdc.osdmap->osd_addr[i];
76 int state = client->osdc.osdmap->osd_state[i];
77 char sb[64];
78
79 seq_printf(s, "\tosd%d\t%s\t%3d%%\t(%s)\n",
80 i, ceph_pr_addr(&addr->in_addr),
81 ((client->osdc.osdmap->osd_weight[i]*100) >> 16),
82 ceph_osdmap_state_str(sb, sizeof(sb), state));
83 }
84 return 0;
85}
86
87static int monc_show(struct seq_file *s, void *p)
88{
89 struct ceph_client *client = s->private;
90 struct ceph_mon_generic_request *req;
91 struct ceph_mon_client *monc = &client->monc;
92 struct rb_node *rp;
93
94 mutex_lock(&monc->mutex);
95
96 if (monc->have_mdsmap)
97 seq_printf(s, "have mdsmap %u\n", (unsigned int)monc->have_mdsmap);
98 if (monc->have_osdmap)
99 seq_printf(s, "have osdmap %u\n", (unsigned int)monc->have_osdmap);
100 if (monc->want_next_osdmap)
101 seq_printf(s, "want next osdmap\n");
102
103 for (rp = rb_first(&monc->generic_request_tree); rp; rp = rb_next(rp)) {
104 __u16 op;
105 req = rb_entry(rp, struct ceph_mon_generic_request, node);
106 op = le16_to_cpu(req->request->hdr.type);
107 if (op == CEPH_MSG_STATFS)
108 seq_printf(s, "%lld statfs\n", req->tid);
109 else
110 seq_printf(s, "%lld unknown\n", req->tid);
111 }
112
113 mutex_unlock(&monc->mutex);
114 return 0;
115}
116
117static int osdc_show(struct seq_file *s, void *pp)
118{
119 struct ceph_client *client = s->private;
120 struct ceph_osd_client *osdc = &client->osdc;
121 struct rb_node *p;
122
123 mutex_lock(&osdc->request_mutex);
124 for (p = rb_first(&osdc->requests); p; p = rb_next(p)) {
125 struct ceph_osd_request *req;
126 struct ceph_osd_request_head *head;
127 struct ceph_osd_op *op;
128 int num_ops;
129 int opcode, olen;
130 int i;
131
132 req = rb_entry(p, struct ceph_osd_request, r_node);
133
134 seq_printf(s, "%lld\tosd%d\t%d.%x\t", req->r_tid,
135 req->r_osd ? req->r_osd->o_osd : -1,
136 le32_to_cpu(req->r_pgid.pool),
137 le16_to_cpu(req->r_pgid.ps));
138
139 head = req->r_request->front.iov_base;
140 op = (void *)(head + 1);
141
142 num_ops = le16_to_cpu(head->num_ops);
143 olen = le32_to_cpu(head->object_len);
144 seq_printf(s, "%.*s", olen,
145 (const char *)(head->ops + num_ops));
146
147 if (req->r_reassert_version.epoch)
148 seq_printf(s, "\t%u'%llu",
149 (unsigned int)le32_to_cpu(req->r_reassert_version.epoch),
150 le64_to_cpu(req->r_reassert_version.version));
151 else
152 seq_printf(s, "\t");
153
154 for (i = 0; i < num_ops; i++) {
155 opcode = le16_to_cpu(op->op);
156 seq_printf(s, "\t%s", ceph_osd_op_name(opcode));
157 op++;
158 }
159
160 seq_printf(s, "\n");
161 }
162 mutex_unlock(&osdc->request_mutex);
163 return 0;
164}
165
166CEPH_DEFINE_SHOW_FUNC(monmap_show)
167CEPH_DEFINE_SHOW_FUNC(osdmap_show)
168CEPH_DEFINE_SHOW_FUNC(monc_show)
169CEPH_DEFINE_SHOW_FUNC(osdc_show)
170
171int ceph_debugfs_init(void)
172{
173 ceph_debugfs_dir = debugfs_create_dir("ceph", NULL);
174 if (!ceph_debugfs_dir)
175 return -ENOMEM;
176 return 0;
177}
178
179void ceph_debugfs_cleanup(void)
180{
181 debugfs_remove(ceph_debugfs_dir);
182}
183
184int ceph_debugfs_client_init(struct ceph_client *client)
185{
186 int ret = -ENOMEM;
187 char name[80];
188
189 snprintf(name, sizeof(name), "%pU.client%lld", &client->fsid,
190 client->monc.auth->global_id);
191
192 dout("ceph_debugfs_client_init %p %s\n", client, name);
193
194 BUG_ON(client->debugfs_dir);
195 client->debugfs_dir = debugfs_create_dir(name, ceph_debugfs_dir);
196 if (!client->debugfs_dir)
197 goto out;
198
199 client->monc.debugfs_file = debugfs_create_file("monc",
200 0600,
201 client->debugfs_dir,
202 client,
203 &monc_show_fops);
204 if (!client->monc.debugfs_file)
205 goto out;
206
207 client->osdc.debugfs_file = debugfs_create_file("osdc",
208 0600,
209 client->debugfs_dir,
210 client,
211 &osdc_show_fops);
212 if (!client->osdc.debugfs_file)
213 goto out;
214
215 client->debugfs_monmap = debugfs_create_file("monmap",
216 0600,
217 client->debugfs_dir,
218 client,
219 &monmap_show_fops);
220 if (!client->debugfs_monmap)
221 goto out;
222
223 client->debugfs_osdmap = debugfs_create_file("osdmap",
224 0600,
225 client->debugfs_dir,
226 client,
227 &osdmap_show_fops);
228 if (!client->debugfs_osdmap)
229 goto out;
230
231 return 0;
232
233out:
234 ceph_debugfs_client_cleanup(client);
235 return ret;
236}
237
238void ceph_debugfs_client_cleanup(struct ceph_client *client)
239{
240 dout("ceph_debugfs_client_cleanup %p\n", client);
241 debugfs_remove(client->debugfs_osdmap);
242 debugfs_remove(client->debugfs_monmap);
243 debugfs_remove(client->osdc.debugfs_file);
244 debugfs_remove(client->monc.debugfs_file);
245 debugfs_remove(client->debugfs_dir);
246}
247
248#else
249
250int ceph_debugfs_init(void)
251{
252 return 0;
253}
254
255void ceph_debugfs_cleanup(void)
256{
257}
258
259int ceph_debugfs_client_init(struct ceph_client *client)
260{
261 return 0;
262}
263
264void ceph_debugfs_client_cleanup(struct ceph_client *client)
265{
266}
267
268#endif
269
270EXPORT_SYMBOL(ceph_debugfs_init);
271EXPORT_SYMBOL(ceph_debugfs_cleanup);
272
