// 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);
}