57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
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* Copyright (c) 2024 David Vernet <dvernet@meta.com>
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* Copyright (c) 2024 Tejun Heo <tj@kernel.org>
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*/
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#include <bpf/bpf.h>
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#include <scx/common.h>
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#include <unistd.h>
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#include "ddsp_vtimelocal_fail.bpf.skel.h"
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#include "scx_test.h"
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static enum scx_test_status setup(void **ctx)
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{
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struct ddsp_vtimelocal_fail *skel;
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skel = ddsp_vtimelocal_fail__open_and_load();
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SCX_FAIL_IF(!skel, "Failed to open and load skel");
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*ctx = skel;
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return SCX_TEST_PASS;
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}
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static enum scx_test_status run(void *ctx)
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{
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struct ddsp_vtimelocal_fail *skel = ctx;
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struct bpf_link *link;
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link = bpf_map__attach_struct_ops(skel->maps.ddsp_vtimelocal_fail_ops);
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SCX_FAIL_IF(!link, "Failed to attach struct_ops");
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sleep(1);
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SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_ERROR));
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bpf_link__destroy(link);
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return SCX_TEST_PASS;
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}
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static void cleanup(void *ctx)
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{
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struct ddsp_vtimelocal_fail *skel = ctx;
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ddsp_vtimelocal_fail__destroy(skel);
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}
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struct scx_test ddsp_vtimelocal_fail = {
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.name = "ddsp_vtimelocal_fail",
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.description = "Verify we gracefully fail, and fall back to using a "
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"built-in DSQ, if we do a direct vtime dispatch to a "
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"built-in DSQ from DSQ in ops.select_cpu()",
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.setup = setup,
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.run = run,
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.cleanup = cleanup,
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};
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REGISTER_SCX_TEST(&ddsp_vtimelocal_fail)
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