tools/testing/selftests/bpf/prog_tests/xdp_noinline.c

   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 }