1
2
3
4
5
6
7
8
9
10
11
12
13
14
15#include <linux/module.h>
16#include <linux/slab.h>
17
18#include <linux/init.h>
19#include <linux/kernel.h>
20#include <linux/proc_fs.h>
21#include <linux/seq_file.h>
22#include <linux/sunrpc/clnt.h>
23#include <linux/sunrpc/svcsock.h>
24#include <linux/sunrpc/metrics.h>
25
26#include "netns.h"
27
28#define RPCDBG_FACILITY RPCDBG_MISC
29
30
31
32
33static int rpc_proc_show(struct seq_file *seq, void *v) {
34 const struct rpc_stat *statp = seq->private;
35 const struct rpc_program *prog = statp->program;
36 unsigned int i, j;
37
38 seq_printf(seq,
39 "net %u %u %u %u\n",
40 statp->netcnt,
41 statp->netudpcnt,
42 statp->nettcpcnt,
43 statp->nettcpconn);
44 seq_printf(seq,
45 "rpc %u %u %u\n",
46 statp->rpccnt,
47 statp->rpcretrans,
48 statp->rpcauthrefresh);
49
50 for (i = 0; i < prog->nrvers; i++) {
51 const struct rpc_version *vers = prog->version[i];
52 if (!vers)
53 continue;
54 seq_printf(seq, "proc%u %u",
55 vers->number, vers->nrprocs);
56 for (j = 0; j < vers->nrprocs; j++)
57 seq_printf(seq, " %u",
58 vers->procs[j].p_count);
59 seq_putc(seq, '\n');
60 }
61 return 0;
62}
63
64static int rpc_proc_open(struct inode *inode, struct file *file)
65{
66 return single_open(file, rpc_proc_show, PDE(inode)->data);
67}
68
69static const struct file_operations rpc_proc_fops = {
70 .owner = THIS_MODULE,
71 .open = rpc_proc_open,
72 .read = seq_read,
73 .llseek = seq_lseek,
74 .release = single_release,
75};
76
77
78
79
80void svc_seq_show(struct seq_file *seq, const struct svc_stat *statp) {
81 const struct svc_program *prog = statp->program;
82 const struct svc_procedure *proc;
83 const struct svc_version *vers;
84 unsigned int i, j;
85
86 seq_printf(seq,
87 "net %u %u %u %u\n",
88 statp->netcnt,
89 statp->netudpcnt,
90 statp->nettcpcnt,
91 statp->nettcpconn);
92 seq_printf(seq,
93 "rpc %u %u %u %u %u\n",
94 statp->rpccnt,
95 statp->rpcbadfmt+statp->rpcbadauth+statp->rpcbadclnt,
96 statp->rpcbadfmt,
97 statp->rpcbadauth,
98 statp->rpcbadclnt);
99
100 for (i = 0; i < prog->pg_nvers; i++) {
101 if (!(vers = prog->pg_vers[i]) || !(proc = vers->vs_proc))
102 continue;
103 seq_printf(seq, "proc%d %u", i, vers->vs_nproc);
104 for (j = 0; j < vers->vs_nproc; j++, proc++)
105 seq_printf(seq, " %u", proc->pc_count);
106 seq_putc(seq, '\n');
107 }
108}
109EXPORT_SYMBOL_GPL(svc_seq_show);
110
111
112
113
114
115
116struct rpc_iostats *rpc_alloc_iostats(struct rpc_clnt *clnt)
117{
118 return kcalloc(clnt->cl_maxproc, sizeof(struct rpc_iostats), GFP_KERNEL);
119}
120EXPORT_SYMBOL_GPL(rpc_alloc_iostats);
121
122
123
124
125
126
127void rpc_free_iostats(struct rpc_iostats *stats)
128{
129 kfree(stats);
130}
131EXPORT_SYMBOL_GPL(rpc_free_iostats);
132
133
134
135
136
137
138
139void rpc_count_iostats(struct rpc_task *task)
140{
141 struct rpc_rqst *req = task->tk_rqstp;
142 struct rpc_iostats *stats;
143 struct rpc_iostats *op_metrics;
144 ktime_t delta;
145
146 if (!task->tk_client || !task->tk_client->cl_metrics || !req)
147 return;
148
149 stats = task->tk_client->cl_metrics;
150 op_metrics = &stats[task->tk_msg.rpc_proc->p_statidx];
151
152 op_metrics->om_ops++;
153 op_metrics->om_ntrans += req->rq_ntrans;
154 op_metrics->om_timeouts += task->tk_timeouts;
155
156 op_metrics->om_bytes_sent += req->rq_xmit_bytes_sent;
157 op_metrics->om_bytes_recv += req->rq_reply_bytes_recvd;
158
159 delta = ktime_sub(req->rq_xtime, task->tk_start);
160 op_metrics->om_queue = ktime_add(op_metrics->om_queue, delta);
161
162 op_metrics->om_rtt = ktime_add(op_metrics->om_rtt, req->rq_rtt);
163
164 delta = ktime_sub(ktime_get(), task->tk_start);
165 op_metrics->om_execute = ktime_add(op_metrics->om_execute, delta);
166}
167
168static void _print_name(struct seq_file *seq, unsigned int op,
169 struct rpc_procinfo *procs)
170{
171 if (procs[op].p_name)
172 seq_printf(seq, "\t%12s: ", procs[op].p_name);
173 else if (op == 0)
174 seq_printf(seq, "\t NULL: ");
175 else
176 seq_printf(seq, "\t%12u: ", op);
177}
178
179void rpc_print_iostats(struct seq_file *seq, struct rpc_clnt *clnt)
180{
181 struct rpc_iostats *stats = clnt->cl_metrics;
182 struct rpc_xprt *xprt = clnt->cl_xprt;
183 unsigned int op, maxproc = clnt->cl_maxproc;
184
185 if (!stats)
186 return;
187
188 seq_printf(seq, "\tRPC iostats version: %s ", RPC_IOSTATS_VERS);
189 seq_printf(seq, "p/v: %u/%u (%s)\n",
190 clnt->cl_prog, clnt->cl_vers, clnt->cl_protname);
191
192 if (xprt)
193 xprt->ops->print_stats(xprt, seq);
194
195 seq_printf(seq, "\tper-op statistics\n");
196 for (op = 0; op < maxproc; op++) {
197 struct rpc_iostats *metrics = &stats[op];
198 _print_name(seq, op, clnt->cl_procinfo);
199 seq_printf(seq, "%lu %lu %lu %Lu %Lu %Lu %Lu %Lu\n",
200 metrics->om_ops,
201 metrics->om_ntrans,
202 metrics->om_timeouts,
203 metrics->om_bytes_sent,
204 metrics->om_bytes_recv,
205 ktime_to_ms(metrics->om_queue),
206 ktime_to_ms(metrics->om_rtt),
207 ktime_to_ms(metrics->om_execute));
208 }
209}
210EXPORT_SYMBOL_GPL(rpc_print_iostats);
211
212
213
214
215static inline struct proc_dir_entry *
216do_register(const char *name, void *data, const struct file_operations *fops)
217{
218 struct sunrpc_net *sn;
219
220 dprintk("RPC: registering /proc/net/rpc/%s\n", name);
221 sn = net_generic(&init_net, sunrpc_net_id);
222 return proc_create_data(name, 0, sn->proc_net_rpc, fops, data);
223}
224
225struct proc_dir_entry *
226rpc_proc_register(struct rpc_stat *statp)
227{
228 return do_register(statp->program->name, statp, &rpc_proc_fops);
229}
230EXPORT_SYMBOL_GPL(rpc_proc_register);
231
232void
233rpc_proc_unregister(const char *name)
234{
235 struct sunrpc_net *sn;
236
237 sn = net_generic(&init_net, sunrpc_net_id);
238 remove_proc_entry(name, sn->proc_net_rpc);
239}
240EXPORT_SYMBOL_GPL(rpc_proc_unregister);
241
242struct proc_dir_entry *
243svc_proc_register(struct svc_stat *statp, const struct file_operations *fops)
244{
245 return do_register(statp->program->pg_name, statp, fops);
246}
247EXPORT_SYMBOL_GPL(svc_proc_register);
248
249void
250svc_proc_unregister(const char *name)
251{
252 struct sunrpc_net *sn;
253
254 sn = net_generic(&init_net, sunrpc_net_id);
255 remove_proc_entry(name, sn->proc_net_rpc);
256}
257EXPORT_SYMBOL_GPL(svc_proc_unregister);
258
259int rpc_proc_init(struct net *net)
260{
261 struct sunrpc_net *sn;
262
263 dprintk("RPC: registering /proc/net/rpc\n");
264 sn = net_generic(net, sunrpc_net_id);
265 sn->proc_net_rpc = proc_mkdir("rpc", net->proc_net);
266 if (sn->proc_net_rpc == NULL)
267 return -ENOMEM;
268
269 return 0;
270}
271
272void rpc_proc_exit(struct net *net)
273{
274 dprintk("RPC: unregistering /proc/net/rpc\n");
275 remove_proc_entry("rpc", net->proc_net);
276}
277
278
