xref: /linux/tools/testing/selftests/sched_ext/maximal.c (revision 2cd86f02c017bf9733e5cd891381b7d40f6f37ad)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
4  * Copyright (c) 2024 David Vernet <dvernet@meta.com>
5  */
6 #include <bpf/bpf.h>
7 #include <scx/common.h>
8 #include <sys/wait.h>
9 #include <unistd.h>
10 #include "maximal.bpf.skel.h"
11 #include "scx_test.h"
12 
13 static enum scx_test_status setup(void **ctx)
14 {
15 	struct maximal *skel;
16 
17 	skel = maximal__open_and_load();
18 	SCX_FAIL_IF(!skel, "Failed to open and load skel");
19 	*ctx = skel;
20 
21 	return SCX_TEST_PASS;
22 }
23 
24 static enum scx_test_status run(void *ctx)
25 {
26 	struct maximal *skel = ctx;
27 	struct bpf_link *link;
28 
29 	link = bpf_map__attach_struct_ops(skel->maps.maximal_ops);
30 	SCX_FAIL_IF(!link, "Failed to attach scheduler");
31 
32 	bpf_link__destroy(link);
33 
34 	return SCX_TEST_PASS;
35 }
36 
37 static void cleanup(void *ctx)
38 {
39 	struct maximal *skel = ctx;
40 
41 	maximal__destroy(skel);
42 }
43 
44 struct scx_test maximal = {
45 	.name = "maximal",
46 	.description = "Verify we can load a scheduler with every callback defined",
47 	.setup = setup,
48 	.run = run,
49 	.cleanup = cleanup,
50 };
51 REGISTER_SCX_TEST(&maximal)
52