1// SPDX-License-Identifier: GPL-2.0
2/* Copyright (c) 2021 Facebook */
3#include <test_progs.h>
4#include "timer_mim.skel.h"
5#include "timer_mim_reject.skel.h"
6
7static int timer_mim(struct timer_mim *timer_skel)
8{
9	__u64 cnt1, cnt2;
10	int err, prog_fd, key1 = 1;
11	LIBBPF_OPTS(bpf_test_run_opts, topts);
12
13	err = timer_mim__attach(timer_skel);
14	if (!ASSERT_OK(err, "timer_attach"))
15		return err;
16
17	prog_fd = bpf_program__fd(timer_skel->progs.test1);
18	err = bpf_prog_test_run_opts(prog_fd, &topts);
19	ASSERT_OK(err, "test_run");
20	ASSERT_EQ(topts.retval, 0, "test_run");
21	timer_mim__detach(timer_skel);
22
23	/* check that timer_cb[12] are incrementing 'cnt' */
24	cnt1 = READ_ONCE(timer_skel->bss->cnt);
25	for (int i = 0; i < 100; i++) {
26		cnt2 = READ_ONCE(timer_skel->bss->cnt);
27		if (cnt2 != cnt1)
28			break;
29		usleep(200); /* 100 times more than interval */
30	}
31	ASSERT_GT(cnt2, cnt1, "cnt");
32
33	ASSERT_EQ(timer_skel->bss->err, 0, "err");
34	/* check that code paths completed */
35	ASSERT_EQ(timer_skel->bss->ok, 1 | 2, "ok");
36
37	close(bpf_map__fd(timer_skel->maps.inner_htab));
38	err = bpf_map__delete_elem(timer_skel->maps.outer_arr, &key1, sizeof(key1), 0);
39	ASSERT_EQ(err, 0, "delete inner map");
40
41	/* check that timer_cb[12] are no longer running */
42	cnt1 = READ_ONCE(timer_skel->bss->cnt);
43	for (int i = 0; i < 100; i++) {
44		usleep(200); /* 100 times more than interval */
45		cnt2 = READ_ONCE(timer_skel->bss->cnt);
46		if (cnt2 == cnt1)
47			break;
48	}
49	ASSERT_EQ(cnt2, cnt1, "cnt");
50
51	return 0;
52}
53
54void serial_test_timer_mim(void)
55{
56	struct timer_mim_reject *timer_reject_skel = NULL;
57	libbpf_print_fn_t old_print_fn = NULL;
58	struct timer_mim *timer_skel = NULL;
59	int err;
60
61	old_print_fn = libbpf_set_print(NULL);
62	timer_reject_skel = timer_mim_reject__open_and_load();
63	libbpf_set_print(old_print_fn);
64	if (!ASSERT_ERR_PTR(timer_reject_skel, "timer_reject_skel_load"))
65		goto cleanup;
66
67	timer_skel = timer_mim__open_and_load();
68	if (!ASSERT_OK_PTR(timer_skel, "timer_skel_load"))
69		goto cleanup;
70
71	err = timer_mim(timer_skel);
72	ASSERT_OK(err, "timer_mim");
73cleanup:
74	timer_mim__destroy(timer_skel);
75	timer_mim_reject__destroy(timer_reject_skel);
76}
77