diff --git a/lib/test/rlc/rlc_am_nr_test.cc b/lib/test/rlc/rlc_am_nr_test.cc index 661d93c87..667266872 100644 --- a/lib/test/rlc/rlc_am_nr_test.cc +++ b/lib/test/rlc/rlc_am_nr_test.cc @@ -2462,7 +2462,99 @@ bool poll_retx_expiry(rlc_am_nr_sn_size_t sn_size) return SRSRAN_SUCCESS; } -int rx_nack_range_test(rlc_am_nr_sn_size_t sn_size) +int rx_nack_range_no_so_test(rlc_am_nr_sn_size_t sn_size) +{ + rlc_am_tester tester; + timer_handler timers(8); + + auto& test_logger = srslog::fetch_basic_logger("TESTER "); + rlc_am rlc1(srsran_rat_t::nr, srslog::fetch_basic_logger("RLC_AM_1"), 1, &tester, &tester, &timers); + rlc_am rlc2(srsran_rat_t::nr, srslog::fetch_basic_logger("RLC_AM_2"), 1, &tester, &tester, &timers); + std::string str = "Rx NACK range test (" + std::to_string(to_number(sn_size)) + " bit SN)"; + test_delimit_logger delimiter(str.c_str()); + + rlc_am_nr_tx* tx1 = dynamic_cast(rlc1.get_tx()); + rlc_am_nr_rx* rx1 = dynamic_cast(rlc1.get_rx()); + rlc_am_nr_tx* tx2 = dynamic_cast(rlc2.get_tx()); + rlc_am_nr_rx* rx2 = dynamic_cast(rlc2.get_rx()); + + auto rlc_cnfg = rlc_config_t::default_rlc_am_nr_config(to_number(sn_size)); + rlc_cnfg.am_nr.t_poll_retx = -1; + if (not rlc1.configure(rlc_cnfg)) { + return -1; + } + + // after configuring entity + TESTASSERT(0 == rlc1.get_buffer_state()); + + int n_sdu_bufs = 5; + int n_pdu_bufs = 15; + + // Push 5 SDUs into RLC1 + std::vector sdu_bufs(n_sdu_bufs); + constexpr uint32_t payload_size = 3; // Give the SDU the size of 3 bytes + uint32_t header_size = sn_size == rlc_am_nr_sn_size_t::size12bits ? 2 : 3; + for (int i = 0; i < n_sdu_bufs; i++) { + sdu_bufs[i] = srsran::make_byte_buffer(); + sdu_bufs[i]->msg[0] = i; // Write the index into the buffer + sdu_bufs[i]->N_bytes = payload_size; // Give each buffer a size of 3 bytes + sdu_bufs[i]->md.pdcp_sn = i; // PDCP SN for notifications + rlc1.write_sdu(std::move(sdu_bufs[i])); + } + + uint32_t expected_buffer_state = (header_size + payload_size) * n_sdu_bufs; + TESTASSERT_EQ(expected_buffer_state, rlc1.get_buffer_state()); + + constexpr uint32_t so_size = 2; + constexpr uint32_t segment_size = 1; + uint32_t pdu_size_first = header_size + segment_size; + uint32_t pdu_size_continued = header_size + so_size + segment_size; + + // Read 15 PDUs from RLC1 + std::vector pdu_bufs(n_pdu_bufs); + for (int i = 0; i < n_pdu_bufs; i++) { + // First also test buffer state + uint32_t remaining_total_bytes = (payload_size * n_sdu_bufs) - (i * segment_size); + uint32_t remaining_full_sdus = remaining_total_bytes / payload_size; + uint32_t remaining_seg_bytes = remaining_total_bytes % payload_size; + + uint32_t buffer_state_full_sdus = (header_size + payload_size) * remaining_full_sdus; + uint32_t buffer_state_seg_sdu = remaining_seg_bytes == 0 ? 0 : (header_size + so_size + remaining_seg_bytes); + expected_buffer_state = buffer_state_full_sdus + buffer_state_seg_sdu; + TESTASSERT_EQ(expected_buffer_state, rlc1.get_buffer_state()); + + pdu_bufs[i] = srsran::make_byte_buffer(); + if (i == 0 || i == 3 || i == 6 || i == 9 || i == 12) { + // First segment, no SO + uint32_t len = rlc1.read_pdu(pdu_bufs[i]->msg, pdu_size_first); // 2 bytes for header + 1 byte payload + pdu_bufs[i]->N_bytes = len; + TESTASSERT_EQ(pdu_size_first, len); + } else { + // Middle or last segment, SO present + uint32_t len = rlc1.read_pdu(pdu_bufs[i]->msg, pdu_size_continued); // 4 bytes for header + 1 byte payload + pdu_bufs[i]->N_bytes = len; + TESTASSERT_EQ(pdu_size_continued, len); + } + } + + // Deliver dummy status report with nack range betwen PDU 6 and 10. + rlc_am_nr_status_pdu_t status(sn_size); + + rlc_status_nack_t nack = {}; + nack.nack_sn = 1; + nack.has_nack_range = true; + nack.nack_range = 3; + status.push_nack(nack); + byte_buffer_t status_pdu; + rlc_am_nr_write_status_pdu(status, sn_size, &status_pdu); + + rlc1.write_pdu(status_pdu.msg, status_pdu.N_bytes); + + TESTASSERT_EQ(3 * pdu_size_first + 6 * pdu_size_continued, rlc1.get_buffer_state()); + return SRSRAN_SUCCESS; +} + +int rx_nack_range_with_so_test(rlc_am_nr_sn_size_t sn_size) { rlc_am_tester tester; timer_handler timers(8); @@ -2601,7 +2693,8 @@ int main() TESTASSERT(poll_byte(sn_size) == SRSRAN_SUCCESS); TESTASSERT(poll_retx(sn_size) == SRSRAN_SUCCESS); TESTASSERT(poll_retx_expiry(sn_size) == SRSRAN_SUCCESS); - TESTASSERT(rx_nack_range_test(sn_size) == SRSRAN_SUCCESS); + TESTASSERT(rx_nack_range_no_so_test(sn_size) == SRSRAN_SUCCESS); + TESTASSERT(rx_nack_range_with_so_test(sn_size) == SRSRAN_SUCCESS); } return SRSRAN_SUCCESS; }