1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2021 Facebook */ 3 #include <test_progs.h> 4 #include "timer_mim.skel.h" 5 #include "timer_mim_reject.skel.h" 6 7 static 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(bpf_map__fd(timer_skel->maps.outer_arr), &key1); 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 54 void 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"); 73 cleanup: 74 timer_mim__destroy(timer_skel); 75 timer_mim_reject__destroy(timer_reject_skel); 76 } 77