diff options
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/percpu_alloc.c')
-rw-r--r-- | tools/testing/selftests/bpf/prog_tests/percpu_alloc.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/percpu_alloc.c b/tools/testing/selftests/bpf/prog_tests/percpu_alloc.c new file mode 100644 index 000000000000..343da65864d6 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/percpu_alloc.c @@ -0,0 +1,128 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <test_progs.h> +#include "percpu_alloc_array.skel.h" +#include "percpu_alloc_cgrp_local_storage.skel.h" +#include "percpu_alloc_fail.skel.h" + +static void test_array(void) +{ + struct percpu_alloc_array *skel; + int err, prog_fd; + LIBBPF_OPTS(bpf_test_run_opts, topts); + + skel = percpu_alloc_array__open(); + if (!ASSERT_OK_PTR(skel, "percpu_alloc_array__open")) + return; + + bpf_program__set_autoload(skel->progs.test_array_map_1, true); + bpf_program__set_autoload(skel->progs.test_array_map_2, true); + bpf_program__set_autoload(skel->progs.test_array_map_3, true); + bpf_program__set_autoload(skel->progs.test_array_map_4, true); + + skel->bss->my_pid = getpid(); + skel->rodata->nr_cpus = libbpf_num_possible_cpus(); + + err = percpu_alloc_array__load(skel); + if (!ASSERT_OK(err, "percpu_alloc_array__load")) + goto out; + + err = percpu_alloc_array__attach(skel); + if (!ASSERT_OK(err, "percpu_alloc_array__attach")) + goto out; + + prog_fd = bpf_program__fd(skel->progs.test_array_map_1); + err = bpf_prog_test_run_opts(prog_fd, &topts); + ASSERT_OK(err, "test_run array_map 1-4"); + ASSERT_EQ(topts.retval, 0, "test_run array_map 1-4"); + ASSERT_EQ(skel->bss->cpu0_field_d, 2, "cpu0_field_d"); + ASSERT_EQ(skel->bss->sum_field_c, 1, "sum_field_c"); +out: + percpu_alloc_array__destroy(skel); +} + +static void test_array_sleepable(void) +{ + struct percpu_alloc_array *skel; + int err, prog_fd; + LIBBPF_OPTS(bpf_test_run_opts, topts); + + skel = percpu_alloc_array__open(); + if (!ASSERT_OK_PTR(skel, "percpu_alloc__open")) + return; + + bpf_program__set_autoload(skel->progs.test_array_map_10, true); + + skel->bss->my_pid = getpid(); + skel->rodata->nr_cpus = libbpf_num_possible_cpus(); + + err = percpu_alloc_array__load(skel); + if (!ASSERT_OK(err, "percpu_alloc_array__load")) + goto out; + + err = percpu_alloc_array__attach(skel); + if (!ASSERT_OK(err, "percpu_alloc_array__attach")) + goto out; + + prog_fd = bpf_program__fd(skel->progs.test_array_map_10); + err = bpf_prog_test_run_opts(prog_fd, &topts); + ASSERT_OK(err, "test_run array_map_10"); + ASSERT_EQ(topts.retval, 0, "test_run array_map_10"); + ASSERT_EQ(skel->bss->cpu0_field_d, 2, "cpu0_field_d"); + ASSERT_EQ(skel->bss->sum_field_c, 1, "sum_field_c"); +out: + percpu_alloc_array__destroy(skel); +} + +static void test_cgrp_local_storage(void) +{ + struct percpu_alloc_cgrp_local_storage *skel; + int err, cgroup_fd, prog_fd; + LIBBPF_OPTS(bpf_test_run_opts, topts); + + cgroup_fd = test__join_cgroup("/percpu_alloc"); + if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup /percpu_alloc")) + return; + + skel = percpu_alloc_cgrp_local_storage__open(); + if (!ASSERT_OK_PTR(skel, "percpu_alloc_cgrp_local_storage__open")) + goto close_fd; + + skel->bss->my_pid = getpid(); + skel->rodata->nr_cpus = libbpf_num_possible_cpus(); + + err = percpu_alloc_cgrp_local_storage__load(skel); + if (!ASSERT_OK(err, "percpu_alloc_cgrp_local_storage__load")) + goto destroy_skel; + + err = percpu_alloc_cgrp_local_storage__attach(skel); + if (!ASSERT_OK(err, "percpu_alloc_cgrp_local_storage__attach")) + goto destroy_skel; + + prog_fd = bpf_program__fd(skel->progs.test_cgrp_local_storage_1); + err = bpf_prog_test_run_opts(prog_fd, &topts); + ASSERT_OK(err, "test_run cgrp_local_storage 1-3"); + ASSERT_EQ(topts.retval, 0, "test_run cgrp_local_storage 1-3"); + ASSERT_EQ(skel->bss->cpu0_field_d, 2, "cpu0_field_d"); + ASSERT_EQ(skel->bss->sum_field_c, 1, "sum_field_c"); + +destroy_skel: + percpu_alloc_cgrp_local_storage__destroy(skel); +close_fd: + close(cgroup_fd); +} + +static void test_failure(void) { + RUN_TESTS(percpu_alloc_fail); +} + +void test_percpu_alloc(void) +{ + if (test__start_subtest("array")) + test_array(); + if (test__start_subtest("array_sleepable")) + test_array_sleepable(); + if (test__start_subtest("cgrp_local_storage")) + test_cgrp_local_storage(); + if (test__start_subtest("failure_tests")) + test_failure(); +} |