1// SPDX-License-Identifier: GPL-2.0
2#include <test_progs.h>
3#include "percpu_alloc_array.skel.h"
4#include "percpu_alloc_cgrp_local_storage.skel.h"
5#include "percpu_alloc_fail.skel.h"
6
7static void test_array(void)
8{
9	struct percpu_alloc_array *skel;
10	int err, prog_fd;
11	LIBBPF_OPTS(bpf_test_run_opts, topts);
12
13	skel = percpu_alloc_array__open();
14	if (!ASSERT_OK_PTR(skel, "percpu_alloc_array__open"))
15		return;
16
17	bpf_program__set_autoload(skel->progs.test_array_map_1, true);
18	bpf_program__set_autoload(skel->progs.test_array_map_2, true);
19	bpf_program__set_autoload(skel->progs.test_array_map_3, true);
20	bpf_program__set_autoload(skel->progs.test_array_map_4, true);
21
22	skel->bss->my_pid = getpid();
23	skel->rodata->nr_cpus = libbpf_num_possible_cpus();
24
25	err = percpu_alloc_array__load(skel);
26	if (!ASSERT_OK(err, "percpu_alloc_array__load"))
27		goto out;
28
29	err = percpu_alloc_array__attach(skel);
30	if (!ASSERT_OK(err, "percpu_alloc_array__attach"))
31		goto out;
32
33	prog_fd = bpf_program__fd(skel->progs.test_array_map_1);
34	err = bpf_prog_test_run_opts(prog_fd, &topts);
35	ASSERT_OK(err, "test_run array_map 1-4");
36	ASSERT_EQ(topts.retval, 0, "test_run array_map 1-4");
37	ASSERT_EQ(skel->bss->cpu0_field_d, 2, "cpu0_field_d");
38	ASSERT_EQ(skel->bss->sum_field_c, 1, "sum_field_c");
39out:
40	percpu_alloc_array__destroy(skel);
41}
42
43static void test_array_sleepable(void)
44{
45	struct percpu_alloc_array *skel;
46	int err, prog_fd;
47	LIBBPF_OPTS(bpf_test_run_opts, topts);
48
49	skel = percpu_alloc_array__open();
50	if (!ASSERT_OK_PTR(skel, "percpu_alloc__open"))
51		return;
52
53	bpf_program__set_autoload(skel->progs.test_array_map_10, true);
54
55	skel->bss->my_pid = getpid();
56	skel->rodata->nr_cpus = libbpf_num_possible_cpus();
57
58	err = percpu_alloc_array__load(skel);
59	if (!ASSERT_OK(err, "percpu_alloc_array__load"))
60		goto out;
61
62	err = percpu_alloc_array__attach(skel);
63	if (!ASSERT_OK(err, "percpu_alloc_array__attach"))
64		goto out;
65
66	prog_fd = bpf_program__fd(skel->progs.test_array_map_10);
67	err = bpf_prog_test_run_opts(prog_fd, &topts);
68	ASSERT_OK(err, "test_run array_map_10");
69	ASSERT_EQ(topts.retval, 0, "test_run array_map_10");
70	ASSERT_EQ(skel->bss->cpu0_field_d, 2, "cpu0_field_d");
71	ASSERT_EQ(skel->bss->sum_field_c, 1, "sum_field_c");
72out:
73	percpu_alloc_array__destroy(skel);
74}
75
76static void test_cgrp_local_storage(void)
77{
78	struct percpu_alloc_cgrp_local_storage *skel;
79	int err, cgroup_fd, prog_fd;
80	LIBBPF_OPTS(bpf_test_run_opts, topts);
81
82	cgroup_fd = test__join_cgroup("/percpu_alloc");
83	if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup /percpu_alloc"))
84		return;
85
86	skel = percpu_alloc_cgrp_local_storage__open();
87	if (!ASSERT_OK_PTR(skel, "percpu_alloc_cgrp_local_storage__open"))
88		goto close_fd;
89
90	skel->bss->my_pid = getpid();
91	skel->rodata->nr_cpus = libbpf_num_possible_cpus();
92
93	err = percpu_alloc_cgrp_local_storage__load(skel);
94	if (!ASSERT_OK(err, "percpu_alloc_cgrp_local_storage__load"))
95		goto destroy_skel;
96
97	err = percpu_alloc_cgrp_local_storage__attach(skel);
98	if (!ASSERT_OK(err, "percpu_alloc_cgrp_local_storage__attach"))
99		goto destroy_skel;
100
101	prog_fd = bpf_program__fd(skel->progs.test_cgrp_local_storage_1);
102	err = bpf_prog_test_run_opts(prog_fd, &topts);
103	ASSERT_OK(err, "test_run cgrp_local_storage 1-3");
104	ASSERT_EQ(topts.retval, 0, "test_run cgrp_local_storage 1-3");
105	ASSERT_EQ(skel->bss->cpu0_field_d, 2, "cpu0_field_d");
106	ASSERT_EQ(skel->bss->sum_field_c, 1, "sum_field_c");
107
108destroy_skel:
109	percpu_alloc_cgrp_local_storage__destroy(skel);
110close_fd:
111	close(cgroup_fd);
112}
113
114static void test_failure(void) {
115	RUN_TESTS(percpu_alloc_fail);
116}
117
118void test_percpu_alloc(void)
119{
120	if (test__start_subtest("array"))
121		test_array();
122	if (test__start_subtest("array_sleepable"))
123		test_array_sleepable();
124	if (test__start_subtest("cgrp_local_storage"))
125		test_cgrp_local_storage();
126	if (test__start_subtest("failure_tests"))
127		test_failure();
128}
129