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adds multi-packet CXS test case

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This commit is contained in:
Eyck Jentzsch 2024-12-19 11:59:00 +01:00
parent 1eba464c61
commit 085423620d
3 changed files with 37 additions and 22 deletions
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2
scc

@ -1 +1 @@
Subproject commit dd8a539df05a14ab320f81af08b0db17faf489cb
Subproject commit 331b6d77ea5f9aed99bd0963a3bb234cf7c98b07

53
tests/cxs_tlm/csx_packet_test.cpp
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@ -4,10 +4,11 @@
#include <tlm/scc/tlm_gp_shared.h>
#undef CHECK
#include <catch2/catch_all.hpp>
#include <deque>
#include <unordered_map>
using namespace sc_core;
namespace cxs {
factory::add<testbench<256>> tb8;
factory::add<testbench<512>> tb9;
factory::add<testbench<1024>> tb10;
@ -22,22 +23,34 @@ template <unsigned WIDTH, typename STATE> unsigned run_scenario(STATE& state) {
auto run1 = sc_spawn([&dut, &state]() {
auto burst_cnt{0};
std::deque<cxs_pkt_shared_ptr> expected_pkt;
for(auto size : state.packet_sizes) {
cxs_pkt_shared_ptr tx_pkt = cxs_pkt_mm::get().allocate();
tx_pkt->get_data().resize(size);
SCCDEBUG("run_scenario") << "Transmitting packet with size " << size;
auto phase{tlm::nw::REQUEST};
sc_core::sc_time t = sc_core::SC_ZERO_TIME;
auto status = dut.isck->nb_transport_fw(*tx_pkt, phase, t);
expected_pkt.emplace_back(tx_pkt);
tx_pkt = nullptr;
REQUIRE(status == tlm::TLM_UPDATED);
REQUIRE(phase == tlm::nw::CONFIRM);
if(++burst_cnt == state.granularity) {
::sc_core::wait(dut.recv.data_written_event());
while(!dut.recv.empty()) {
auto recv_pkt = dut.recv.front();
dut.recv.pop_front();
REQUIRE(tx_pkt == recv_pkt);
REQUIRE(recv_pkt->get_data().size() == state.packet_sizes[state.resp_cnt]);
state.resp_cnt++;
auto rec_cnt = 0u;
while(rec_cnt < burst_cnt) {
::sc_core::wait(dut.recv.data_written_event());
while(!dut.recv.empty()) {
auto recv_pkt = dut.recv.front();
dut.recv.pop_front();
tx_pkt = expected_pkt.front();
expected_pkt.pop_front();
REQUIRE(tx_pkt == recv_pkt);
REQUIRE(recv_pkt->get_data().size() == state.packet_sizes[state.resp_cnt]);
state.resp_cnt++;
rec_cnt++;
SCCDEBUG("run_scenario") << "Received packet with size " << recv_pkt->get_data().size()
<< ", total number of packets is " << state.resp_cnt;
}
}
burst_cnt = 0;
}
@ -89,24 +102,26 @@ TEST_CASE("single-packet", "[CXS][tlm-level]") {
REQUIRE(state.resp_cnt == state.packet_sizes.size());
}
}
/*
TEST_CASE("flit-alignment", "[CXS][tlm-level]") {
TEST_CASE("multi-packet", "[CXS][tlm-level]") {
struct {
unsigned int reset_cycles{4};
unsigned int max_cycles = 5000;
std::vector<unsigned int> packet_sizes;
unsigned granularity{2};
unsigned resp_cnt{0};
} state;
state.packet_sizes.assign({4, 32, 32, 8, 64, 128});
state.resp_cnt = 0;
auto cycles = run_scenario(8, state);
state.packet_sizes.assign({4, 8, 16, 32, 16, 64, 16, 128, 16, 256, 16, 1024});
for(auto width = 8; width < 11; ++width) {
state.resp_cnt = 0;
auto cycles = run_scenario(width, state);
REQUIRE(cycles < 1000);
REQUIRE(sc_report_handler::get_count(SC_ERROR) == 0);
REQUIRE(sc_report_handler::get_count(SC_WARNING) == 0);
REQUIRE(cycles < state.max_cycles);
REQUIRE(sc_report_handler::get_count(SC_ERROR) == 0);
REQUIRE(sc_report_handler::get_count(SC_WARNING) == 0);
REQUIRE(state.resp_cnt == state.packet_sizes.size());
REQUIRE(state.resp_cnt == state.packet_sizes.size());
}
}
*/
} // namespace cxs

4
tests/cxs_tlm/testbench.h
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@ -15,7 +15,7 @@
using namespace sc_core;
using namespace sc_dt;
using namespace std;
using namespace cxs;
namespace cxs {
const char* sc_gen_unique_name(const char*, bool preserve_first);
template <unsigned PHIT_WIDTH> struct testbench : public sc_core::sc_module {
@ -72,5 +72,5 @@ template <unsigned PHIT_WIDTH> struct testbench : public sc_core::sc_module {
sc_core::sc_event confirmation_evt;
scc::fifo_w_cb<cxs_pkt_shared_ptr> recv;
};
} // namespace cxs
#endif // _TESTBENCH_H_