xref: /linux/tools/testing/selftests/bpf/prog_tests/xdp_noinline.c (revision 26fbb4c8c7c3ee9a4c3b4de555a8587b5a19154e)
1 // SPDX-License-Identifier: GPL-2.0
2 #include <test_progs.h>
3 #include <network_helpers.h>
4 #include "test_xdp_noinline.skel.h"
5 
6 void test_xdp_noinline(void)
7 {
8 	unsigned int nr_cpus = bpf_num_possible_cpus();
9 	struct test_xdp_noinline *skel;
10 	struct vip key = {.protocol = 6};
11 	struct vip_meta {
12 		__u32 flags;
13 		__u32 vip_num;
14 	} value = {.vip_num = VIP_NUM};
15 	__u32 stats_key = VIP_NUM;
16 	struct vip_stats {
17 		__u64 bytes;
18 		__u64 pkts;
19 	} stats[nr_cpus];
20 	struct real_definition {
21 		union {
22 			__be32 dst;
23 			__be32 dstv6[4];
24 		};
25 		__u8 flags;
26 	} real_def = {.dst = MAGIC_VAL};
27 	__u32 ch_key = 11, real_num = 3;
28 	__u32 duration = 0, retval, size;
29 	int err, i;
30 	__u64 bytes = 0, pkts = 0;
31 	char buf[128];
32 	u32 *magic = (u32 *)buf;
33 
34 	skel = test_xdp_noinline__open_and_load();
35 	if (CHECK(!skel, "skel_open_and_load", "failed\n"))
36 		return;
37 
38 	bpf_map_update_elem(bpf_map__fd(skel->maps.vip_map), &key, &value, 0);
39 	bpf_map_update_elem(bpf_map__fd(skel->maps.ch_rings), &ch_key, &real_num, 0);
40 	bpf_map_update_elem(bpf_map__fd(skel->maps.reals), &real_num, &real_def, 0);
41 
42 	err = bpf_prog_test_run(bpf_program__fd(skel->progs.balancer_ingress_v4),
43 				NUM_ITER, &pkt_v4, sizeof(pkt_v4),
44 				buf, &size, &retval, &duration);
45 	CHECK(err || retval != 1 || size != 54 ||
46 	      *magic != MAGIC_VAL, "ipv4",
47 	      "err %d errno %d retval %d size %d magic %x\n",
48 	      err, errno, retval, size, *magic);
49 
50 	err = bpf_prog_test_run(bpf_program__fd(skel->progs.balancer_ingress_v6),
51 				NUM_ITER, &pkt_v6, sizeof(pkt_v6),
52 				buf, &size, &retval, &duration);
53 	CHECK(err || retval != 1 || size != 74 ||
54 	      *magic != MAGIC_VAL, "ipv6",
55 	      "err %d errno %d retval %d size %d magic %x\n",
56 	      err, errno, retval, size, *magic);
57 
58 	bpf_map_lookup_elem(bpf_map__fd(skel->maps.stats), &stats_key, stats);
59 	for (i = 0; i < nr_cpus; i++) {
60 		bytes += stats[i].bytes;
61 		pkts += stats[i].pkts;
62 	}
63 	CHECK(bytes != MAGIC_BYTES * NUM_ITER * 2 || pkts != NUM_ITER * 2,
64 	      "stats", "bytes %lld pkts %lld\n",
65 	      (unsigned long long)bytes, (unsigned long long)pkts);
66 	test_xdp_noinline__destroy(skel);
67 }
68