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//
// Copyright 2019 Ettus Research, a National Instruments Brand
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#include <uhd/rfnoc/chdr/chdr_packet.hpp>
#include <uhd/types/endianness.hpp>
#include <uhd/utils/byteswap.hpp>
#include <boost/format.hpp>
#include <boost/test/unit_test.hpp>
#include <cstring>
#include <cstdint>
using namespace uhd::rfnoc::chdr;
namespace {
constexpr size_t MAX_BUF_SIZE = 8192;
// Poorman's send
void send(const void* from, void* to, size_t len)
{
std::memcpy(to, from, len);
}
}
uint8_t send_packet_buff[MAX_BUF_SIZE];
uint8_t recv_packet_buff[MAX_BUF_SIZE];
template <size_t chdr_w, uhd::endianness_t endianness>
void test_loopback(packet_type_t pkt_type,
uint16_t dst_epid,
uint8_t flags,
uint16_t num_md,
size_t num_payload)
{
// Clear buffers
std::memset(send_packet_buff, 0, MAX_BUF_SIZE);
std::memset(recv_packet_buff, 0, MAX_BUF_SIZE);
auto send_header = chdr_header<chdr_w>(pkt_type);
send_header.set_dst_epid(dst_epid);
send_header.set_flags(flags);
send_header.set_packet_size(num_payload, num_md);
chdr_packet<chdr_w, endianness> send_chdr_packet(send_header, send_packet_buff);
//chdr_packet<64, uhd::endianness_t::ENDIANNESS_LITTLE> send_chdr_packet(send_header, send_packet_buff);
uint8_t* md_buff = send_chdr_packet.template metadata_ptr_of_type<uint8_t>();
//* start filling in the meta data
for (size_t i = 0; i < send_chdr_packet.get_header().get_num_bytes_metadata(); i++) {
md_buff[i] = i + 1;
}
auto* pay_load = send_chdr_packet.template payload_ptr_of_type<uint8_t>();
//* start filling in the pay load
for (size_t i = 0; i < send_chdr_packet.get_header().get_num_bytes_payload(); i++) {
pay_load[i] = 2 * (i + 1);
}
send(send_packet_buff, recv_packet_buff, MAX_BUF_SIZE);
const chdr_packet<chdr_w, endianness> recv_chdr_packet(recv_packet_buff);
BOOST_CHECK_EQUAL((num_md + num_payload + 1
+ (pkt_type == packet_type_t::PACKET_TYPE_DATA_WITH_TS ? 1 : 0))
* (chdr_w / 8),
recv_chdr_packet.get_header().get_length());
BOOST_CHECK_EQUAL(flags, recv_chdr_packet.get_header().get_flags());
BOOST_CHECK_EQUAL(dst_epid, recv_chdr_packet.get_header().get_dst_epid());
BOOST_CHECK_EQUAL(num_md, recv_chdr_packet.get_header().get_num_metadata());
BOOST_CHECK_EQUAL(num_payload, recv_chdr_packet.get_header().get_num_words_payload());
BOOST_CHECK(pkt_type == recv_chdr_packet.get_header().get_pkt_type());
const auto* out_md_buff = recv_chdr_packet.template metadata_ptr_of_type<uint8_t>();
for (size_t i = 0; i < recv_chdr_packet.get_header().get_num_bytes_metadata(); i++) {
BOOST_CHECK_EQUAL(md_buff[i], out_md_buff[i]);
}
const auto* out_payload = recv_chdr_packet.template payload_ptr_of_type<uint8_t>();
for (size_t i = 0; i < recv_chdr_packet.get_header().get_num_bytes_payload(); i++) {
BOOST_CHECK_EQUAL(pay_load[i], out_payload[i]);
}
}
BOOST_AUTO_TEST_CASE(simple_read_if_chdr_pkt)
{
constexpr size_t num_payload = 5; // in words
constexpr packet_type_t pkt_type = packet_type_t::PACKET_TYPE_DATA_NO_TS;
constexpr uint16_t num_md = 0x5A; // 90
constexpr uint16_t dst_epid = 0xCAFE;
constexpr uint8_t flags = 0x3A;
test_loopback<64, uhd::endianness_t::ENDIANNESS_LITTLE>(pkt_type, dst_epid, flags, num_md, num_payload);
test_loopback<128, uhd::endianness_t::ENDIANNESS_LITTLE>(pkt_type, dst_epid, flags, num_md, num_payload);
test_loopback<256, uhd::endianness_t::ENDIANNESS_LITTLE>(pkt_type, dst_epid, flags, num_md, num_payload);
test_loopback<64, uhd::endianness_t::ENDIANNESS_BIG>(pkt_type, dst_epid, flags, num_md, num_payload);
test_loopback<128, uhd::endianness_t::ENDIANNESS_BIG>(pkt_type, dst_epid, flags, num_md, num_payload);
test_loopback<256, uhd::endianness_t::ENDIANNESS_BIG>(pkt_type, dst_epid, flags, num_md, num_payload);
}
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