bpf/prog_tests/xdp_noinline.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 #include <test_progs.h>
0003 #include <network_helpers.h>
0004 #include "test_xdp_noinline.skel.h"
0005
0006 void test_xdp_noinline(void)
0007 {
0008     unsigned int nr_cpus = bpf_num_possible_cpus();
0009     struct test_xdp_noinline *skel;
0010     struct vip key = {.protocol = 6};
0011     struct vip_meta {
0012         __u32 flags;
0013         __u32 vip_num;
0014     } value = {.vip_num = VIP_NUM};
0015     __u32 stats_key = VIP_NUM;
0016     struct vip_stats {
0017         __u64 bytes;
0018         __u64 pkts;
0019     } stats[nr_cpus];
0020     struct real_definition {
0021         union {
0022             __be32 dst;
0023             __be32 dstv6[4];
0024         };
0025         __u8 flags;
0026     } real_def = {.dst = MAGIC_VAL};
0027     __u32 ch_key = 11, real_num = 3;
0028     int err, i;
0029     __u64 bytes = 0, pkts = 0;
0030     char buf[128];
0031     u32 *magic = (u32 *)buf;
0032     LIBBPF_OPTS(bpf_test_run_opts, topts,
0033         .data_in = &pkt_v4,
0034         .data_size_in = sizeof(pkt_v4),
0035         .data_out = buf,
0036         .data_size_out = sizeof(buf),
0037         .repeat = NUM_ITER,
0038     );
0039
0040     skel = test_xdp_noinline__open_and_load();
0041     if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
0042         return;
0043
0044     bpf_map_update_elem(bpf_map__fd(skel->maps.vip_map), &key, &value, 0);
0045     bpf_map_update_elem(bpf_map__fd(skel->maps.ch_rings), &ch_key, &real_num, 0);
0046     bpf_map_update_elem(bpf_map__fd(skel->maps.reals), &real_num, &real_def, 0);
0047
0048     err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.balancer_ingress_v4), &topts);
0049     ASSERT_OK(err, "ipv4 test_run");
0050     ASSERT_EQ(topts.retval, 1, "ipv4 test_run retval");
0051     ASSERT_EQ(topts.data_size_out, 54, "ipv4 test_run data_size_out");
0052     ASSERT_EQ(*magic, MAGIC_VAL, "ipv4 test_run magic");
0053
0054     topts.data_in = &pkt_v6;
0055     topts.data_size_in = sizeof(pkt_v6);
0056     topts.data_out = buf;
0057     topts.data_size_out = sizeof(buf);
0058
0059     err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.balancer_ingress_v6), &topts);
0060     ASSERT_OK(err, "ipv6 test_run");
0061     ASSERT_EQ(topts.retval, 1, "ipv6 test_run retval");
0062     ASSERT_EQ(topts.data_size_out, 74, "ipv6 test_run data_size_out");
0063     ASSERT_EQ(*magic, MAGIC_VAL, "ipv6 test_run magic");
0064
0065     bpf_map_lookup_elem(bpf_map__fd(skel->maps.stats), &stats_key, stats);
0066     for (i = 0; i < nr_cpus; i++) {
0067         bytes += stats[i].bytes;
0068         pkts += stats[i].pkts;
0069     }
0070     ASSERT_EQ(bytes, MAGIC_BYTES * NUM_ITER * 2, "stats bytes");
0071     ASSERT_EQ(pkts, NUM_ITER * 2, "stats pkts");
0072     test_xdp_noinline__destroy(skel);
0073 }