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// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
#define _GNU_SOURCE
#include <sched.h>
#include <pthread.h>
#include <stdbool.h>
#include <test_progs.h>
#include "preempted_bpf_ma_op.skel.h"
#define ALLOC_THREAD_NR 4
#define ALLOC_LOOP_NR 512
struct alloc_ctx {
/* output */
int run_err;
/* input */
int fd;
bool *nomem_err;
};
static void *run_alloc_prog(void *data)
{
struct alloc_ctx *ctx = data;
cpu_set_t cpu_set;
int i;
CPU_ZERO(&cpu_set);
CPU_SET(0, &cpu_set);
pthread_setaffinity_np(pthread_self(), sizeof(cpu_set), &cpu_set);
for (i = 0; i < ALLOC_LOOP_NR && !*ctx->nomem_err; i++) {
LIBBPF_OPTS(bpf_test_run_opts, topts);
int err;
err = bpf_prog_test_run_opts(ctx->fd, &topts);
ctx->run_err |= err | topts.retval;
}
return NULL;
}
void test_preempted_bpf_ma_op(void)
{
struct alloc_ctx ctx[ALLOC_THREAD_NR];
struct preempted_bpf_ma_op *skel;
pthread_t tid[ALLOC_THREAD_NR];
int i, err;
skel = preempted_bpf_ma_op__open_and_load();
if (!ASSERT_OK_PTR(skel, "open_and_load"))
return;
err = preempted_bpf_ma_op__attach(skel);
if (!ASSERT_OK(err, "attach"))
goto out;
for (i = 0; i < ARRAY_SIZE(ctx); i++) {
struct bpf_program *prog;
char name[8];
snprintf(name, sizeof(name), "test%d", i);
prog = bpf_object__find_program_by_name(skel->obj, name);
if (!ASSERT_OK_PTR(prog, "no test prog"))
goto out;
ctx[i].run_err = 0;
ctx[i].fd = bpf_program__fd(prog);
ctx[i].nomem_err = &skel->bss->nomem_err;
}
memset(tid, 0, sizeof(tid));
for (i = 0; i < ARRAY_SIZE(tid); i++) {
err = pthread_create(&tid[i], NULL, run_alloc_prog, &ctx[i]);
if (!ASSERT_OK(err, "pthread_create"))
break;
}
for (i = 0; i < ARRAY_SIZE(tid); i++) {
if (!tid[i])
break;
pthread_join(tid[i], NULL);
ASSERT_EQ(ctx[i].run_err, 0, "run prog err");
}
ASSERT_FALSE(skel->bss->nomem_err, "ENOMEM");
out:
preempted_bpf_ma_op__destroy(skel);
}
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