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brintos / linux-shallow public Read only

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1// SPDX-License-Identifier: GPL-2.02/* Copyright (c) 2021 Facebook */3#include <test_progs.h>4#include "timer_mim.skel.h"5#include "timer_mim_reject.skel.h"6 7static int timer_mim(struct timer_mim *timer_skel)8{9	__u64 cnt1, cnt2;10	int err, prog_fd, key1 = 1;11	LIBBPF_OPTS(bpf_test_run_opts, topts);12 13	err = timer_mim__attach(timer_skel);14	if (!ASSERT_OK(err, "timer_attach"))15		return err;16 17	prog_fd = bpf_program__fd(timer_skel->progs.test1);18	err = bpf_prog_test_run_opts(prog_fd, &topts);19	ASSERT_OK(err, "test_run");20	ASSERT_EQ(topts.retval, 0, "test_run");21	timer_mim__detach(timer_skel);22 23	/* check that timer_cb[12] are incrementing 'cnt' */24	cnt1 = READ_ONCE(timer_skel->bss->cnt);25	for (int i = 0; i < 100; i++) {26		cnt2 = READ_ONCE(timer_skel->bss->cnt);27		if (cnt2 != cnt1)28			break;29		usleep(200); /* 100 times more than interval */30	}31	ASSERT_GT(cnt2, cnt1, "cnt");32 33	ASSERT_EQ(timer_skel->bss->err, 0, "err");34	/* check that code paths completed */35	ASSERT_EQ(timer_skel->bss->ok, 1 | 2, "ok");36 37	close(bpf_map__fd(timer_skel->maps.inner_htab));38	err = bpf_map__delete_elem(timer_skel->maps.outer_arr, &key1, sizeof(key1), 0);39	ASSERT_EQ(err, 0, "delete inner map");40 41	/* check that timer_cb[12] are no longer running */42	cnt1 = READ_ONCE(timer_skel->bss->cnt);43	for (int i = 0; i < 100; i++) {44		usleep(200); /* 100 times more than interval */45		cnt2 = READ_ONCE(timer_skel->bss->cnt);46		if (cnt2 == cnt1)47			break;48	}49	ASSERT_EQ(cnt2, cnt1, "cnt");50 51	return 0;52}53 54void serial_test_timer_mim(void)55{56	struct timer_mim_reject *timer_reject_skel = NULL;57	libbpf_print_fn_t old_print_fn = NULL;58	struct timer_mim *timer_skel = NULL;59	int err;60 61	old_print_fn = libbpf_set_print(NULL);62	timer_reject_skel = timer_mim_reject__open_and_load();63	libbpf_set_print(old_print_fn);64	if (!ASSERT_ERR_PTR(timer_reject_skel, "timer_reject_skel_load"))65		goto cleanup;66 67	timer_skel = timer_mim__open_and_load();68	if (!ASSERT_OK_PTR(timer_skel, "timer_skel_load"))69		goto cleanup;70 71	err = timer_mim(timer_skel);72	ASSERT_OK(err, "timer_mim");73cleanup:74	timer_mim__destroy(timer_skel);75	timer_mim_reject__destroy(timer_reject_skel);76}77