77 lines · c
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