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 14 struct cpu_set { 15 bool *cpus; 16 int cpus_len; 17 int next_cpu; 18 }; 19 20 struct env { 21 char *bench_name; 22 int duration_sec; 23 int warmup_sec; 24 bool verbose; 25 bool list; 26 bool affinity; 27 int consumer_cnt; 28 int producer_cnt; 29 struct cpu_set prod_cpus; 30 struct cpu_set cons_cpus; 31 }; 32 33 struct bench_res { 34 long hits; 35 long drops; 36 long false_hits; 37 }; 38 39 struct bench { 40 const char *name; 41 void (*validate)(void); 42 void (*setup)(void); 43 void *(*producer_thread)(void *ctx); 44 void *(*consumer_thread)(void *ctx); 45 void (*measure)(struct bench_res* res); 46 void (*report_progress)(int iter, struct bench_res* res, long delta_ns); 47 void (*report_final)(struct bench_res res[], int res_cnt); 48 }; 49 50 struct counter { 51 long value; 52 } __attribute__((aligned(128))); 53 54 extern struct env env; 55 extern const struct bench *bench; 56 57 void setup_libbpf(void); 58 void hits_drops_report_progress(int iter, struct bench_res *res, long delta_ns); 59 void hits_drops_report_final(struct bench_res res[], int res_cnt); 60 void false_hits_report_progress(int iter, struct bench_res *res, long delta_ns); 61 void false_hits_report_final(struct bench_res res[], int res_cnt); 62 void ops_report_progress(int iter, struct bench_res *res, long delta_ns); 63 void ops_report_final(struct bench_res res[], int res_cnt); 64 65 static inline __u64 get_time_ns(void) 66 { 67 struct timespec t; 68 69 clock_gettime(CLOCK_MONOTONIC, &t); 70 71 return (u64)t.tv_sec * 1000000000 + t.tv_nsec; 72 } 73 74 static inline void atomic_inc(long *value) 75 { 76 (void)__atomic_add_fetch(value, 1, __ATOMIC_RELAXED); 77 } 78 79 static inline void atomic_add(long *value, long n) 80 { 81 (void)__atomic_add_fetch(value, n, __ATOMIC_RELAXED); 82 } 83 84 static inline long atomic_swap(long *value, long n) 85 { 86 return __atomic_exchange_n(value, n, __ATOMIC_RELAXED); 87 } 88