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
7 static 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");
39 out:
40 percpu_alloc_array__destroy(skel);
41 }
42
43 static 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");
72 out:
73 percpu_alloc_array__destroy(skel);
74 }
75
76 static 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
108 destroy_skel:
109 percpu_alloc_cgrp_local_storage__destroy(skel);
110 close_fd:
111 close(cgroup_fd);
112 }
113
114 static void test_failure(void) {
115 RUN_TESTS(percpu_alloc_fail);
116 }
117
118 void 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
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