1/* SPDX-License-Identifier: GPL-2.0 */
2#pragma once
3#include <stdlib.h>
4#include <stdbool.h>
5#include <linux/err.h>
6#include <errno.h>
7#include <unistd.h>
8#include <bpf/bpf.h>
9#include <bpf/libbpf.h>
10#include <math.h>
11#include <time.h>
12#include <sys/syscall.h>
13
14struct cpu_set {
15	bool *cpus;
16	int cpus_len;
17	int next_cpu;
18};
19
20struct env {
21	char *bench_name;
22	int duration_sec;
23	int warmup_sec;
24	bool verbose;
25	bool list;
26	bool affinity;
27	bool quiet;
28	int consumer_cnt;
29	int producer_cnt;
30	int nr_cpus;
31	struct cpu_set prod_cpus;
32	struct cpu_set cons_cpus;
33};
34
35struct basic_stats {
36	double mean;
37	double stddev;
38};
39
40struct bench_res {
41	long hits;
42	long drops;
43	long false_hits;
44	long important_hits;
45	unsigned long gp_ns;
46	unsigned long gp_ct;
47	unsigned int stime;
48};
49
50struct bench {
51	const char *name;
52	const struct argp *argp;
53	void (*validate)(void);
54	void (*setup)(void);
55	void *(*producer_thread)(void *ctx);
56	void *(*consumer_thread)(void *ctx);
57	void (*measure)(struct bench_res* res);
58	void (*report_progress)(int iter, struct bench_res* res, long delta_ns);
59	void (*report_final)(struct bench_res res[], int res_cnt);
60};
61
62struct counter {
63	long value;
64} __attribute__((aligned(128)));
65
66extern struct env env;
67extern const struct bench *bench;
68
69void setup_libbpf(void);
70void hits_drops_report_progress(int iter, struct bench_res *res, long delta_ns);
71void hits_drops_report_final(struct bench_res res[], int res_cnt);
72void false_hits_report_progress(int iter, struct bench_res *res, long delta_ns);
73void false_hits_report_final(struct bench_res res[], int res_cnt);
74void ops_report_progress(int iter, struct bench_res *res, long delta_ns);
75void ops_report_final(struct bench_res res[], int res_cnt);
76void local_storage_report_progress(int iter, struct bench_res *res,
77				   long delta_ns);
78void local_storage_report_final(struct bench_res res[], int res_cnt);
79void grace_period_latency_basic_stats(struct bench_res res[], int res_cnt,
80				      struct basic_stats *gp_stat);
81void grace_period_ticks_basic_stats(struct bench_res res[], int res_cnt,
82				    struct basic_stats *gp_stat);
83
84static inline void atomic_inc(long *value)
85{
86	(void)__atomic_add_fetch(value, 1, __ATOMIC_RELAXED);
87}
88
89static inline void atomic_add(long *value, long n)
90{
91	(void)__atomic_add_fetch(value, n, __ATOMIC_RELAXED);
92}
93
94static inline long atomic_swap(long *value, long n)
95{
96	return __atomic_exchange_n(value, n, __ATOMIC_RELAXED);
97}
98