1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * Copyright (C) 2025, LG Electronics.
4 * Author(s): Hyunchul Lee <hyc.lee@gmail.com>
5 * Copyright (C) 2025, Samsung Electronics.
6 * Author(s): Vedansh Bhardwaj <v.bhardwaj@samsung.com>
7 */
8
9 #ifndef __KSMBD_STATS_H__
10 #define __KSMBD_STATS_H__
11
12 #define KSMBD_COUNTER_MAX_REQS 19
13
14 enum {
15 KSMBD_COUNTER_SESSIONS = 0,
16 KSMBD_COUNTER_TREE_CONNS,
17 KSMBD_COUNTER_REQUESTS,
18 KSMBD_COUNTER_READ_BYTES,
19 KSMBD_COUNTER_WRITE_BYTES,
20 KSMBD_COUNTER_FIRST_REQ,
21 KSMBD_COUNTER_LAST_REQ = KSMBD_COUNTER_FIRST_REQ +
22 KSMBD_COUNTER_MAX_REQS - 1,
23 KSMBD_COUNTER_MAX,
24 };
25
26 #ifdef CONFIG_PROC_FS
27 extern struct ksmbd_counters ksmbd_counters;
28
29 struct ksmbd_counters {
30 struct percpu_counter counters[KSMBD_COUNTER_MAX];
31 };
32
ksmbd_counter_inc(int type)33 static inline void ksmbd_counter_inc(int type)
34 {
35 percpu_counter_inc(&ksmbd_counters.counters[type]);
36 }
37
ksmbd_counter_dec(int type)38 static inline void ksmbd_counter_dec(int type)
39 {
40 percpu_counter_dec(&ksmbd_counters.counters[type]);
41 }
42
ksmbd_counter_add(int type,s64 value)43 static inline void ksmbd_counter_add(int type, s64 value)
44 {
45 percpu_counter_add(&ksmbd_counters.counters[type], value);
46 }
47
ksmbd_counter_sub(int type,s64 value)48 static inline void ksmbd_counter_sub(int type, s64 value)
49 {
50 percpu_counter_sub(&ksmbd_counters.counters[type], value);
51 }
52
ksmbd_counter_inc_reqs(unsigned int cmd)53 static inline void ksmbd_counter_inc_reqs(unsigned int cmd)
54 {
55 if (cmd < KSMBD_COUNTER_MAX_REQS)
56 percpu_counter_inc(&ksmbd_counters.counters[KSMBD_COUNTER_FIRST_REQ + cmd]);
57 }
58
ksmbd_counter_sum(int type)59 static inline s64 ksmbd_counter_sum(int type)
60 {
61 return percpu_counter_sum_positive(&ksmbd_counters.counters[type]);
62 }
63 #else
64
ksmbd_counter_inc(int type)65 static inline void ksmbd_counter_inc(int type) {}
ksmbd_counter_dec(int type)66 static inline void ksmbd_counter_dec(int type) {}
ksmbd_counter_add(int type,s64 value)67 static inline void ksmbd_counter_add(int type, s64 value) {}
ksmbd_counter_sub(int type,s64 value)68 static inline void ksmbd_counter_sub(int type, s64 value) {}
ksmbd_counter_inc_reqs(unsigned int cmd)69 static inline void ksmbd_counter_inc_reqs(unsigned int cmd) {}
ksmbd_counter_sum(int type)70 static inline s64 ksmbd_counter_sum(int type) { return 0; }
71 #endif
72
73 #endif
74