linux/tools/testing/selftests/bpf/prog_tests/xdp_noinline.c
Delyan Kratunov 04fcb5f9a1 selftests/bpf: Migrate from bpf_prog_test_run
bpf_prog_test_run is being deprecated in favor of the OPTS-based
bpf_prog_test_run_opts.
We end up unable to use CHECK in most cases, so replace usages with
ASSERT_* calls.

Signed-off-by: Delyan Kratunov <delyank@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220202235423.1097270-2-delyank@fb.com
2022-02-02 22:31:18 -08:00

74 lines
2.2 KiB
C

// SPDX-License-Identifier: GPL-2.0
#include <test_progs.h>
#include <network_helpers.h>
#include "test_xdp_noinline.skel.h"
void test_xdp_noinline(void)
{
unsigned int nr_cpus = bpf_num_possible_cpus();
struct test_xdp_noinline *skel;
struct vip key = {.protocol = 6};
struct vip_meta {
__u32 flags;
__u32 vip_num;
} value = {.vip_num = VIP_NUM};
__u32 stats_key = VIP_NUM;
struct vip_stats {
__u64 bytes;
__u64 pkts;
} stats[nr_cpus];
struct real_definition {
union {
__be32 dst;
__be32 dstv6[4];
};
__u8 flags;
} real_def = {.dst = MAGIC_VAL};
__u32 ch_key = 11, real_num = 3;
int err, i;
__u64 bytes = 0, pkts = 0;
char buf[128];
u32 *magic = (u32 *)buf;
LIBBPF_OPTS(bpf_test_run_opts, topts,
.data_in = &pkt_v4,
.data_size_in = sizeof(pkt_v4),
.data_out = buf,
.data_size_out = sizeof(buf),
.repeat = NUM_ITER,
);
skel = test_xdp_noinline__open_and_load();
if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
return;
bpf_map_update_elem(bpf_map__fd(skel->maps.vip_map), &key, &value, 0);
bpf_map_update_elem(bpf_map__fd(skel->maps.ch_rings), &ch_key, &real_num, 0);
bpf_map_update_elem(bpf_map__fd(skel->maps.reals), &real_num, &real_def, 0);
err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.balancer_ingress_v4), &topts);
ASSERT_OK(err, "ipv4 test_run");
ASSERT_EQ(topts.retval, 1, "ipv4 test_run retval");
ASSERT_EQ(topts.data_size_out, 54, "ipv4 test_run data_size_out");
ASSERT_EQ(*magic, MAGIC_VAL, "ipv4 test_run magic");
topts.data_in = &pkt_v6;
topts.data_size_in = sizeof(pkt_v6);
topts.data_out = buf;
topts.data_size_out = sizeof(buf);
err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.balancer_ingress_v6), &topts);
ASSERT_OK(err, "ipv6 test_run");
ASSERT_EQ(topts.retval, 1, "ipv6 test_run retval");
ASSERT_EQ(topts.data_size_out, 74, "ipv6 test_run data_size_out");
ASSERT_EQ(*magic, MAGIC_VAL, "ipv6 test_run magic");
bpf_map_lookup_elem(bpf_map__fd(skel->maps.stats), &stats_key, stats);
for (i = 0; i < nr_cpus; i++) {
bytes += stats[i].bytes;
pkts += stats[i].pkts;
}
ASSERT_EQ(bytes, MAGIC_BYTES * NUM_ITER * 2, "stats bytes");
ASSERT_EQ(pkts, NUM_ITER * 2, "stats pkts");
test_xdp_noinline__destroy(skel);
}