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1463 lines
41 KiB
C++
1463 lines
41 KiB
C++
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2015 Software Radio Systems Limited
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*
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* \section LICENSE
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*
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* This file is part of the srsUE library.
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*
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* srsUE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsUE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#include <iostream>
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#include "srslte/common/log_filter.h"
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#include "srslte/common/logger_stdout.h"
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#include "srslte/upper/rlc_am.h"
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#include "srslte/common/rlc_pcap.h"
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#include <assert.h>
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#define NBUFS 5
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#define HAVE_PCAP 0
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using namespace srsue;
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using namespace srslte;
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class mac_dummy_timers
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:public srslte::mac_interface_timers
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{
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public:
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srslte::timers::timer* timer_get(uint32_t timer_id)
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{
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return &t;
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}
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uint32_t timer_get_unique_id(){return 0;}
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void timer_release_id(uint32_t id){}
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private:
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srslte::timers::timer t;
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};
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class rlc_am_tester
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:public pdcp_interface_rlc
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,public rrc_interface_rlc
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{
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public:
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rlc_am_tester(rlc_pcap *pcap_ = NULL)
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{
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bzero(sdus, sizeof(sdus));
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n_sdus = 0;
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pcap = pcap_;
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}
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~rlc_am_tester(){
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for (uint32_t i = 0; i < 10; i++) {
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if (sdus[i] != NULL) {
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byte_buffer_pool::get_instance()->deallocate(sdus[i]);
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}
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}
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}
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// PDCP interface
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void write_pdu(uint32_t lcid, byte_buffer_t *sdu)
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{
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assert(lcid == 1);
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sdus[n_sdus++] = sdu;
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}
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void write_pdu_bcch_bch(byte_buffer_t *sdu) {}
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void write_pdu_bcch_dlsch(byte_buffer_t *sdu) {}
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void write_pdu_pcch(byte_buffer_t *sdu) {}
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// RRC interface
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void max_retx_attempted(){}
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std::string get_rb_name(uint32_t lcid) { return std::string(""); }
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byte_buffer_t *sdus[10];
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int n_sdus;
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rlc_pcap *pcap;
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};
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void basic_test()
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{
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srslte::log_filter log1("RLC_AM_1");
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srslte::log_filter log2("RLC_AM_2");
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log1.set_level(srslte::LOG_LEVEL_DEBUG);
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log2.set_level(srslte::LOG_LEVEL_DEBUG);
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log1.set_hex_limit(-1);
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log2.set_hex_limit(-1);
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rlc_am_tester tester;
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mac_dummy_timers timers;
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rlc_am rlc1;
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rlc_am rlc2;
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int len;
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log1.set_level(srslte::LOG_LEVEL_DEBUG);
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log2.set_level(srslte::LOG_LEVEL_DEBUG);
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rlc1.init(&log1, 1, &tester, &tester, &timers);
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rlc2.init(&log2, 1, &tester, &tester, &timers);
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LIBLTE_RRC_RLC_CONFIG_STRUCT cnfg;
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cnfg.rlc_mode = LIBLTE_RRC_RLC_MODE_AM;
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cnfg.dl_am_rlc.t_reordering = LIBLTE_RRC_T_REORDERING_MS5;
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cnfg.dl_am_rlc.t_status_prohibit = LIBLTE_RRC_T_STATUS_PROHIBIT_MS5;
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cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
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cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
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cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
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cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
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rlc1.configure(&cnfg);
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rlc2.configure(&cnfg);
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// Push 5 SDUs into RLC1
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byte_buffer_t sdu_bufs[NBUFS];
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for(int i=0;i<NBUFS;i++)
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{
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*sdu_bufs[i].msg = i; // Write the index into the buffer
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sdu_bufs[i].N_bytes = 1; // Give each buffer a size of 1 byte
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rlc1.write_sdu(&sdu_bufs[i]);
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}
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assert(14 == rlc1.get_buffer_state());
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// Read 5 PDUs from RLC1 (1 byte each)
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byte_buffer_t pdu_bufs[NBUFS];
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for(int i=0;i<NBUFS;i++)
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{
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len = rlc1.read_pdu(pdu_bufs[i].msg, 4); // 3 bytes for header + payload
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pdu_bufs[i].N_bytes = len;
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}
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assert(0 == rlc1.get_buffer_state());
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// Write 5 PDUs into RLC2
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for(int i=0;i<NBUFS;i++)
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{
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rlc2.write_pdu(pdu_bufs[i].msg, pdu_bufs[i].N_bytes);
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}
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assert(2 == rlc2.get_buffer_state());
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// Read status PDU from RLC2
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byte_buffer_t status_buf;
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len = rlc2.read_pdu(status_buf.msg, 2);
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status_buf.N_bytes = len;
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assert(0 == rlc2.get_buffer_state());
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// Write status PDU to RLC1
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rlc1.write_pdu(status_buf.msg, status_buf.N_bytes);
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for(int i=0; i<tester.n_sdus; i++)
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{
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assert(tester.sdus[i]->N_bytes == 1);
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assert(*(tester.sdus[i]->msg) == i);
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}
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}
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void concat_test()
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{
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srslte::log_filter log1("RLC_AM_1");
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srslte::log_filter log2("RLC_AM_2");
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log1.set_level(srslte::LOG_LEVEL_DEBUG);
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log2.set_level(srslte::LOG_LEVEL_DEBUG);
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log1.set_hex_limit(-1);
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log2.set_hex_limit(-1);
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rlc_am_tester tester;
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mac_dummy_timers timers;
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rlc_am rlc1;
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rlc_am rlc2;
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int len;
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log1.set_level(srslte::LOG_LEVEL_DEBUG);
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log2.set_level(srslte::LOG_LEVEL_DEBUG);
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rlc1.init(&log1, 1, &tester, &tester, &timers);
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rlc2.init(&log2, 1, &tester, &tester, &timers);
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LIBLTE_RRC_RLC_CONFIG_STRUCT cnfg;
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cnfg.rlc_mode = LIBLTE_RRC_RLC_MODE_AM;
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cnfg.dl_am_rlc.t_reordering = LIBLTE_RRC_T_REORDERING_MS5;
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cnfg.dl_am_rlc.t_status_prohibit = LIBLTE_RRC_T_STATUS_PROHIBIT_MS5;
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cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
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cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
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cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
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cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
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rlc1.configure(&cnfg);
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rlc2.configure(&cnfg);
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// Push 5 SDUs into RLC1
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byte_buffer_t sdu_bufs[NBUFS];
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for(int i=0;i<NBUFS;i++)
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{
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*sdu_bufs[i].msg = i; // Write the index into the buffer
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sdu_bufs[i].N_bytes = 1; // Give each buffer a size of 1 byte
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rlc1.write_sdu(&sdu_bufs[i]);
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}
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assert(14 == rlc1.get_buffer_state());
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// Read 1 PDUs from RLC1 containing all 5 SDUs
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byte_buffer_t pdu_buf;
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len = rlc1.read_pdu(pdu_buf.msg, 13); // 8 bytes for header + payload
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pdu_buf.N_bytes = len;
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assert(0 == rlc1.get_buffer_state());
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// Write PDU into RLC2
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rlc2.write_pdu(pdu_buf.msg, pdu_buf.N_bytes);
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// No status report as we haven't crossed polling thresholds
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assert(tester.n_sdus == 5);
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for(int i=0; i<tester.n_sdus; i++)
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{
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assert(tester.sdus[i]->N_bytes == 1);
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assert(*(tester.sdus[i]->msg) == i);
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}
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}
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void segment_test()
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{
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srslte::log_filter log1("RLC_AM_1");
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srslte::log_filter log2("RLC_AM_2");
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log1.set_level(srslte::LOG_LEVEL_DEBUG);
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log2.set_level(srslte::LOG_LEVEL_DEBUG);
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log1.set_hex_limit(-1);
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log2.set_hex_limit(-1);
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rlc_am_tester tester;
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mac_dummy_timers timers;
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rlc_am rlc1;
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rlc_am rlc2;
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int len;
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log1.set_level(srslte::LOG_LEVEL_DEBUG);
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log2.set_level(srslte::LOG_LEVEL_DEBUG);
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rlc1.init(&log1, 1, &tester, &tester, &timers);
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rlc2.init(&log2, 1, &tester, &tester, &timers);
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LIBLTE_RRC_RLC_CONFIG_STRUCT cnfg;
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cnfg.rlc_mode = LIBLTE_RRC_RLC_MODE_AM;
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cnfg.dl_am_rlc.t_reordering = LIBLTE_RRC_T_REORDERING_MS5;
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cnfg.dl_am_rlc.t_status_prohibit = LIBLTE_RRC_T_STATUS_PROHIBIT_MS5;
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cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
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cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
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cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
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cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
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rlc1.configure(&cnfg);
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rlc2.configure(&cnfg);
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// Push 5 SDUs into RLC1
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byte_buffer_t sdu_bufs[NBUFS];
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for(int i=0;i<NBUFS;i++)
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{
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for(int j=0;j<10;j++)
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sdu_bufs[i].msg[j] = j;
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sdu_bufs[i].N_bytes = 10; // Give each buffer a size of 10 bytes
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rlc1.write_sdu(&sdu_bufs[i]);
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}
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assert(59 == rlc1.get_buffer_state());
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// Read PDUs from RLC1 (force segmentation)
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byte_buffer_t pdu_bufs[20];
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int n_pdus = 0;
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while(rlc1.get_buffer_state() > 0){
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len = rlc1.read_pdu(pdu_bufs[n_pdus].msg, 10); // 2 header + payload
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pdu_bufs[n_pdus++].N_bytes = len;
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}
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assert(0 == rlc1.get_buffer_state());
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// Write PDUs into RLC2
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for(int i=0;i<n_pdus;i++)
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{
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rlc2.write_pdu(pdu_bufs[i].msg, pdu_bufs[i].N_bytes);
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}
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assert(2 == rlc2.get_buffer_state());
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// Read status PDU from RLC2
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byte_buffer_t status_buf;
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len = rlc2.read_pdu(status_buf.msg, 10); // 10 bytes is enough to hold the status
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status_buf.N_bytes = len;
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assert(0 == rlc2.get_buffer_state());
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// Write status PDU to RLC1
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rlc1.write_pdu(status_buf.msg, status_buf.N_bytes);
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assert(tester.n_sdus == 5);
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for(int i=0; i<tester.n_sdus; i++)
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{
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assert(tester.sdus[i]->N_bytes == 10);
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for(int j=0;j<10;j++)
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assert(tester.sdus[i]->msg[j] == j);
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}
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}
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void retx_test()
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{
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srslte::log_filter log1("RLC_AM_1");
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srslte::log_filter log2("RLC_AM_2");
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log1.set_level(srslte::LOG_LEVEL_DEBUG);
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log2.set_level(srslte::LOG_LEVEL_DEBUG);
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log1.set_hex_limit(-1);
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log2.set_hex_limit(-1);
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rlc_am_tester tester;
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mac_dummy_timers timers;
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rlc_am rlc1;
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rlc_am rlc2;
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int len;
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log1.set_level(srslte::LOG_LEVEL_DEBUG);
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log2.set_level(srslte::LOG_LEVEL_DEBUG);
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rlc1.init(&log1, 1, &tester, &tester, &timers);
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rlc2.init(&log2, 1, &tester, &tester, &timers);
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LIBLTE_RRC_RLC_CONFIG_STRUCT cnfg;
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cnfg.rlc_mode = LIBLTE_RRC_RLC_MODE_AM;
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cnfg.dl_am_rlc.t_reordering = LIBLTE_RRC_T_REORDERING_MS5;
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cnfg.dl_am_rlc.t_status_prohibit = LIBLTE_RRC_T_STATUS_PROHIBIT_MS5;
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cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
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cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
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cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
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cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
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rlc1.configure(&cnfg);
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rlc2.configure(&cnfg);
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// Push 5 SDUs into RLC1
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byte_buffer_t sdu_bufs[NBUFS];
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for(int i=0;i<NBUFS;i++)
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{
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*sdu_bufs[i].msg = i; // Write the index into the buffer
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sdu_bufs[i].N_bytes = 1; // Give each buffer a size of 1 byte
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rlc1.write_sdu(&sdu_bufs[i]);
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}
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assert(14 == rlc1.get_buffer_state());
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// Read 5 PDUs from RLC1 (1 byte each)
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byte_buffer_t pdu_bufs[NBUFS];
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for(int i=0;i<NBUFS;i++)
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{
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len = rlc1.read_pdu(pdu_bufs[i].msg, 4); // 2 byte header + 1 byte payload
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pdu_bufs[i].N_bytes = len;
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}
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assert(0 == rlc1.get_buffer_state());
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// Write PDUs into RLC2 (skip SN 1)
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for(int i=0;i<NBUFS;i++)
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{
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if(i != 1)
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rlc2.write_pdu(pdu_bufs[i].msg, pdu_bufs[i].N_bytes);
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}
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// Sleep to let reordering timeout expire
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usleep(10000);
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assert(4 == rlc2.get_buffer_state());
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// Read status PDU from RLC2
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byte_buffer_t status_buf;
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len = rlc2.read_pdu(status_buf.msg, 10); // 10 bytes is enough to hold the status
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status_buf.N_bytes = len;
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// Write status PDU to RLC1
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rlc1.write_pdu(status_buf.msg, status_buf.N_bytes);
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assert(3 == rlc1.get_buffer_state()); // 2 byte header + 1 byte payload
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// Read the retx PDU from RLC1
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byte_buffer_t retx;
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len = rlc1.read_pdu(retx.msg, 3); // 2 byte header + 1 byte payload
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retx.N_bytes = len;
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// Write the retx PDU to RLC2
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rlc2.write_pdu(retx.msg, retx.N_bytes);
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assert(tester.n_sdus == 5);
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for(int i=0; i<tester.n_sdus; i++)
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{
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assert(tester.sdus[i]->N_bytes == 1);
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assert(*(tester.sdus[i]->msg) == i);
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}
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}
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void resegment_test_1()
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{
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// SDUs: | 10 | 10 | 10 | 10 | 10 |
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// PDUs: | 10 | 10 | 10 | 10 | 10 |
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// Retx PDU segments: | 5 | 5|
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srslte::log_filter log1("RLC_AM_1");
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srslte::log_filter log2("RLC_AM_2");
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log1.set_level(srslte::LOG_LEVEL_DEBUG);
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log2.set_level(srslte::LOG_LEVEL_DEBUG);
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log1.set_hex_limit(-1);
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log2.set_hex_limit(-1);
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rlc_am_tester tester;
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mac_dummy_timers timers;
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rlc_am rlc1;
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rlc_am rlc2;
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int len;
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log1.set_level(srslte::LOG_LEVEL_DEBUG);
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log2.set_level(srslte::LOG_LEVEL_DEBUG);
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rlc1.init(&log1, 1, &tester, &tester, &timers);
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rlc2.init(&log2, 1, &tester, &tester, &timers);
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LIBLTE_RRC_RLC_CONFIG_STRUCT cnfg;
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cnfg.rlc_mode = LIBLTE_RRC_RLC_MODE_AM;
|
|
cnfg.dl_am_rlc.t_reordering = LIBLTE_RRC_T_REORDERING_MS5;
|
|
cnfg.dl_am_rlc.t_status_prohibit = LIBLTE_RRC_T_STATUS_PROHIBIT_MS5;
|
|
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
|
|
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
|
|
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
|
|
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
|
|
|
|
rlc1.configure(&cnfg);
|
|
rlc2.configure(&cnfg);
|
|
|
|
// Push 5 SDUs into RLC1
|
|
byte_buffer_t sdu_bufs[NBUFS];
|
|
for(int i=0;i<NBUFS;i++)
|
|
{
|
|
for(int j=0;j<10;j++)
|
|
sdu_bufs[i].msg[j] = j;
|
|
sdu_bufs[i].N_bytes = 10; // Give each buffer a size of 10 bytes
|
|
rlc1.write_sdu(&sdu_bufs[i]);
|
|
}
|
|
|
|
assert(59 == rlc1.get_buffer_state());
|
|
|
|
// Read 5 PDUs from RLC1 (10 bytes each)
|
|
byte_buffer_t pdu_bufs[NBUFS];
|
|
for(int i=0;i<NBUFS;i++)
|
|
{
|
|
len = rlc1.read_pdu(pdu_bufs[i].msg, 12); // 12 bytes for header + payload
|
|
pdu_bufs[i].N_bytes = len;
|
|
}
|
|
|
|
assert(0 == rlc1.get_buffer_state());
|
|
|
|
// Write PDUs into RLC2 (skip SN 1)
|
|
for(int i=0;i<NBUFS;i++)
|
|
{
|
|
if(i != 1)
|
|
rlc2.write_pdu(pdu_bufs[i].msg, pdu_bufs[i].N_bytes);
|
|
}
|
|
|
|
// Sleep to let reordering timeout expire
|
|
usleep(10000);
|
|
|
|
assert(4 == rlc2.get_buffer_state());
|
|
|
|
// Read status PDU from RLC2
|
|
byte_buffer_t status_buf;
|
|
len = rlc2.read_pdu(status_buf.msg, 10); // 10 bytes is enough to hold the status
|
|
status_buf.N_bytes = len;
|
|
|
|
// Write status PDU to RLC1
|
|
rlc1.write_pdu(status_buf.msg, status_buf.N_bytes);
|
|
|
|
assert(12 == rlc1.get_buffer_state()); // 2 byte header + 10 data
|
|
|
|
// Read the retx PDU from RLC1 and force resegmentation
|
|
byte_buffer_t retx1;
|
|
len = rlc1.read_pdu(retx1.msg, 9); // 4 byte header + 5 data
|
|
retx1.N_bytes = len;
|
|
|
|
// Write the retx PDU to RLC2
|
|
rlc2.write_pdu(retx1.msg, retx1.N_bytes);
|
|
|
|
assert(9 == rlc1.get_buffer_state());
|
|
|
|
// Read the remaining segment
|
|
byte_buffer_t retx2;
|
|
len = rlc1.read_pdu(retx2.msg, 9); // 4 byte header + 5 data
|
|
retx2.N_bytes = len;
|
|
|
|
// Write the retx PDU to RLC2
|
|
rlc2.write_pdu(retx2.msg, retx2.N_bytes);
|
|
|
|
assert(tester.n_sdus == 5);
|
|
for(int i=0; i<tester.n_sdus; i++)
|
|
{
|
|
assert(tester.sdus[i]->N_bytes == 10);
|
|
for(int j=0;j<10;j++)
|
|
assert(tester.sdus[i]->msg[j] == j);
|
|
}
|
|
}
|
|
|
|
void resegment_test_2()
|
|
{
|
|
|
|
// SDUs: | 10 | 10 | 10 | 10 | 10 |
|
|
// PDUs: | 5 | 10 | 20 | 10 | 5 |
|
|
// Retx PDU segments: | 10 | 10 |
|
|
|
|
srslte::log_filter log1("RLC_AM_1");
|
|
srslte::log_filter log2("RLC_AM_2");
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log2.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log1.set_hex_limit(-1);
|
|
log2.set_hex_limit(-1);
|
|
rlc_am_tester tester;
|
|
mac_dummy_timers timers;
|
|
|
|
rlc_am rlc1;
|
|
rlc_am rlc2;
|
|
|
|
int len;
|
|
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log2.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
|
|
rlc1.init(&log1, 1, &tester, &tester, &timers);
|
|
rlc2.init(&log2, 1, &tester, &tester, &timers);
|
|
|
|
LIBLTE_RRC_RLC_CONFIG_STRUCT cnfg;
|
|
cnfg.rlc_mode = LIBLTE_RRC_RLC_MODE_AM;
|
|
cnfg.dl_am_rlc.t_reordering = LIBLTE_RRC_T_REORDERING_MS5;
|
|
cnfg.dl_am_rlc.t_status_prohibit = LIBLTE_RRC_T_STATUS_PROHIBIT_MS5;
|
|
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
|
|
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
|
|
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
|
|
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
|
|
|
|
rlc1.configure(&cnfg);
|
|
rlc2.configure(&cnfg);
|
|
|
|
// Push 5 SDUs into RLC1
|
|
byte_buffer_t sdu_bufs[NBUFS];
|
|
for(int i=0;i<NBUFS;i++)
|
|
{
|
|
for(int j=0;j<10;j++)
|
|
sdu_bufs[i].msg[j] = j;
|
|
sdu_bufs[i].N_bytes = 10; // Give each buffer a size of 10 bytes
|
|
rlc1.write_sdu(&sdu_bufs[i]);
|
|
}
|
|
|
|
assert(59 == rlc1.get_buffer_state());
|
|
|
|
// Read 5 PDUs from RLC1 (5 bytes, 10 bytes, 20 bytes, 10 bytes, 5 bytes)
|
|
byte_buffer_t pdu_bufs[NBUFS];
|
|
pdu_bufs[0].N_bytes = rlc1.read_pdu(pdu_bufs[0].msg, 7); // 2 byte header + 5 byte payload
|
|
pdu_bufs[1].N_bytes = rlc1.read_pdu(pdu_bufs[1].msg, 14); // 4 byte header + 10 byte payload
|
|
pdu_bufs[2].N_bytes = rlc1.read_pdu(pdu_bufs[2].msg, 25); // 5 byte header + 20 byte payload
|
|
pdu_bufs[3].N_bytes = rlc1.read_pdu(pdu_bufs[3].msg, 14); // 4 byte header + 10 byte payload
|
|
pdu_bufs[4].N_bytes = rlc1.read_pdu(pdu_bufs[4].msg, 7); // 2 byte header + 5 byte payload
|
|
|
|
assert(0 == rlc1.get_buffer_state());
|
|
|
|
// Write PDUs into RLC2 (skip SN 2)
|
|
for(int i=0;i<NBUFS;i++)
|
|
{
|
|
if(i != 2)
|
|
rlc2.write_pdu(pdu_bufs[i].msg, pdu_bufs[i].N_bytes);
|
|
}
|
|
|
|
// Sleep to let reordering timeout expire
|
|
usleep(10000);
|
|
|
|
assert(4 == rlc2.get_buffer_state());
|
|
|
|
// Read status PDU from RLC2
|
|
byte_buffer_t status_buf;
|
|
status_buf.N_bytes = rlc2.read_pdu(status_buf.msg, 10); // 10 bytes is enough to hold the status
|
|
|
|
// Write status PDU to RLC1
|
|
rlc1.write_pdu(status_buf.msg, status_buf.N_bytes);
|
|
|
|
assert(25 == rlc1.get_buffer_state()); // 4 byte header + 20 data
|
|
|
|
// Read the retx PDU from RLC1 and force resegmentation
|
|
byte_buffer_t retx1;
|
|
retx1.N_bytes = rlc1.read_pdu(retx1.msg, 16); // 6 byte header + 10 data
|
|
|
|
// Write the retx PDU to RLC2
|
|
rlc2.write_pdu(retx1.msg, retx1.N_bytes);
|
|
|
|
assert(16 == rlc1.get_buffer_state());
|
|
|
|
// Read the remaining segment
|
|
byte_buffer_t retx2;
|
|
retx2.N_bytes = rlc1.read_pdu(retx2.msg, 16); // 6 byte header + 10 data
|
|
|
|
// Write the retx PDU to RLC2
|
|
rlc2.write_pdu(retx2.msg, retx2.N_bytes);
|
|
|
|
assert(tester.n_sdus == 5);
|
|
for(int i=0; i<tester.n_sdus; i++)
|
|
{
|
|
assert(tester.sdus[i]->N_bytes == 10);
|
|
for(int j=0;j<10;j++)
|
|
assert(tester.sdus[i]->msg[j] == j);
|
|
}
|
|
}
|
|
|
|
void resegment_test_3()
|
|
{
|
|
|
|
// SDUs: | 10 | 10 | 10 | 10 | 10 |
|
|
// PDUs: | 5 | 5| 20 | 10 | 10 |
|
|
// Retx PDU segments: | 10 | 10 |
|
|
|
|
srslte::log_filter log1("RLC_AM_1");
|
|
srslte::log_filter log2("RLC_AM_2");
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log2.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log1.set_hex_limit(-1);
|
|
log2.set_hex_limit(-1);
|
|
rlc_am_tester tester;
|
|
mac_dummy_timers timers;
|
|
|
|
rlc_am rlc1;
|
|
rlc_am rlc2;
|
|
|
|
int len;
|
|
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log2.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
|
|
rlc1.init(&log1, 1, &tester, &tester, &timers);
|
|
rlc2.init(&log2, 1, &tester, &tester, &timers);
|
|
|
|
LIBLTE_RRC_RLC_CONFIG_STRUCT cnfg;
|
|
cnfg.rlc_mode = LIBLTE_RRC_RLC_MODE_AM;
|
|
cnfg.dl_am_rlc.t_reordering = LIBLTE_RRC_T_REORDERING_MS5;
|
|
cnfg.dl_am_rlc.t_status_prohibit = LIBLTE_RRC_T_STATUS_PROHIBIT_MS5;
|
|
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
|
|
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
|
|
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
|
|
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
|
|
|
|
rlc1.configure(&cnfg);
|
|
rlc2.configure(&cnfg);
|
|
|
|
// Push 5 SDUs into RLC1
|
|
byte_buffer_t sdu_bufs[NBUFS];
|
|
for(int i=0;i<NBUFS;i++)
|
|
{
|
|
for(int j=0;j<10;j++)
|
|
sdu_bufs[i].msg[j] = j;
|
|
sdu_bufs[i].N_bytes = 10; // Give each buffer a size of 10 bytes
|
|
rlc1.write_sdu(&sdu_bufs[i]);
|
|
}
|
|
|
|
assert(59 == rlc1.get_buffer_state());
|
|
|
|
// Read 5 PDUs from RLC1 (5 bytes, 5 bytes, 20 bytes, 10 bytes, 10 bytes)
|
|
byte_buffer_t pdu_bufs[NBUFS];
|
|
pdu_bufs[0].N_bytes = rlc1.read_pdu(pdu_bufs[0].msg, 7); // 2 byte header + 5 byte payload
|
|
pdu_bufs[1].N_bytes = rlc1.read_pdu(pdu_bufs[1].msg, 7); // 2 byte header + 5 byte payload
|
|
pdu_bufs[2].N_bytes = rlc1.read_pdu(pdu_bufs[2].msg, 24); // 4 byte header + 20 byte payload
|
|
pdu_bufs[3].N_bytes = rlc1.read_pdu(pdu_bufs[3].msg, 12); // 2 byte header + 10 byte payload
|
|
pdu_bufs[4].N_bytes = rlc1.read_pdu(pdu_bufs[4].msg, 12); // 2 byte header + 10 byte payload
|
|
|
|
assert(0 == rlc1.get_buffer_state());
|
|
|
|
// Write PDUs into RLC2 (skip SN 2)
|
|
for(int i=0;i<NBUFS;i++)
|
|
{
|
|
if(i != 2)
|
|
rlc2.write_pdu(pdu_bufs[i].msg, pdu_bufs[i].N_bytes);
|
|
}
|
|
|
|
// Sleep to let reordering timeout expire
|
|
usleep(10000);
|
|
|
|
assert(4 == rlc2.get_buffer_state());
|
|
|
|
// Read status PDU from RLC2
|
|
byte_buffer_t status_buf;
|
|
status_buf.N_bytes = rlc2.read_pdu(status_buf.msg, 10); // 10 bytes is enough to hold the status
|
|
|
|
// Write status PDU to RLC1
|
|
rlc1.write_pdu(status_buf.msg, status_buf.N_bytes);
|
|
|
|
// Read the retx PDU from RLC1 and force resegmentation
|
|
byte_buffer_t retx1;
|
|
retx1.N_bytes = rlc1.read_pdu(retx1.msg, 14); // 4 byte header + 10 data
|
|
|
|
// Write the retx PDU to RLC2
|
|
rlc2.write_pdu(retx1.msg, retx1.N_bytes);
|
|
|
|
// Read the remaining segment
|
|
byte_buffer_t retx2;
|
|
retx2.N_bytes = rlc1.read_pdu(retx2.msg, 14); // 4 byte header + 10 data
|
|
|
|
// Write the retx PDU to RLC2
|
|
rlc2.write_pdu(retx2.msg, retx2.N_bytes);
|
|
|
|
assert(tester.n_sdus == 5);
|
|
for(int i=0; i<tester.n_sdus; i++)
|
|
{
|
|
assert(tester.sdus[i]->N_bytes == 10);
|
|
for(int j=0;j<10;j++)
|
|
assert(tester.sdus[i]->msg[j] == j);
|
|
}
|
|
}
|
|
|
|
void resegment_test_4()
|
|
{
|
|
|
|
// SDUs: | 10 | 10 | 10 | 10 | 10 |
|
|
// PDUs: | 5 | 5| 30 | 5 | 5|
|
|
// Retx PDU segments: | 15 | 15 |
|
|
|
|
srslte::log_filter log1("RLC_AM_1");
|
|
srslte::log_filter log2("RLC_AM_2");
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log2.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log1.set_hex_limit(-1);
|
|
log2.set_hex_limit(-1);
|
|
rlc_am_tester tester;
|
|
mac_dummy_timers timers;
|
|
|
|
rlc_am rlc1;
|
|
rlc_am rlc2;
|
|
|
|
int len;
|
|
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log2.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
|
|
rlc1.init(&log1, 1, &tester, &tester, &timers);
|
|
rlc2.init(&log2, 1, &tester, &tester, &timers);
|
|
|
|
LIBLTE_RRC_RLC_CONFIG_STRUCT cnfg;
|
|
cnfg.rlc_mode = LIBLTE_RRC_RLC_MODE_AM;
|
|
cnfg.dl_am_rlc.t_reordering = LIBLTE_RRC_T_REORDERING_MS5;
|
|
cnfg.dl_am_rlc.t_status_prohibit = LIBLTE_RRC_T_STATUS_PROHIBIT_MS5;
|
|
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
|
|
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
|
|
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
|
|
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
|
|
|
|
rlc1.configure(&cnfg);
|
|
rlc2.configure(&cnfg);
|
|
|
|
// Push 5 SDUs into RLC1
|
|
byte_buffer_t sdu_bufs[NBUFS];
|
|
for(int i=0;i<NBUFS;i++)
|
|
{
|
|
for(int j=0;j<10;j++)
|
|
sdu_bufs[i].msg[j] = j;
|
|
sdu_bufs[i].N_bytes = 10; // Give each buffer a size of 10 bytes
|
|
rlc1.write_sdu(&sdu_bufs[i]);
|
|
}
|
|
|
|
assert(59 == rlc1.get_buffer_state());
|
|
|
|
// Read 5 PDUs from RLC1 (5 bytes, 5 bytes, 30 bytes, 5 bytes, 5 bytes)
|
|
byte_buffer_t pdu_bufs[NBUFS];
|
|
pdu_bufs[0].N_bytes = rlc1.read_pdu(pdu_bufs[0].msg, 7); // 2 byte header + 5 byte payload
|
|
pdu_bufs[1].N_bytes = rlc1.read_pdu(pdu_bufs[1].msg, 7); // 2 byte header + 5 byte payload
|
|
pdu_bufs[2].N_bytes = rlc1.read_pdu(pdu_bufs[2].msg, 35); // 5 byte header + 30 byte payload
|
|
pdu_bufs[3].N_bytes = rlc1.read_pdu(pdu_bufs[3].msg, 7); // 2 byte header + 5 byte payload
|
|
pdu_bufs[4].N_bytes = rlc1.read_pdu(pdu_bufs[4].msg, 7); // 2 byte header + 5 byte payload
|
|
|
|
assert(0 == rlc1.get_buffer_state());
|
|
|
|
// Write PDUs into RLC2 (skip SN 2)
|
|
for(int i=0;i<NBUFS;i++)
|
|
{
|
|
if(i != 2)
|
|
rlc2.write_pdu(pdu_bufs[i].msg, pdu_bufs[i].N_bytes);
|
|
}
|
|
|
|
// Sleep to let reordering timeout expire
|
|
usleep(10000);
|
|
|
|
assert(4 == rlc2.get_buffer_state());
|
|
|
|
// Read status PDU from RLC2
|
|
byte_buffer_t status_buf;
|
|
status_buf.N_bytes = rlc2.read_pdu(status_buf.msg, 10); // 10 bytes is enough to hold the status
|
|
|
|
// Write status PDU to RLC1
|
|
rlc1.write_pdu(status_buf.msg, status_buf.N_bytes);
|
|
|
|
// Read the retx PDU from RLC1 and force resegmentation
|
|
byte_buffer_t retx1;
|
|
retx1.N_bytes = rlc1.read_pdu(retx1.msg, 21); // 6 byte header + 15 data
|
|
|
|
// Write the retx PDU to RLC2
|
|
rlc2.write_pdu(retx1.msg, retx1.N_bytes);
|
|
|
|
// Read the remaining segment
|
|
byte_buffer_t retx2;
|
|
retx2.N_bytes = rlc1.read_pdu(retx2.msg, 21); // 6 byte header + 15 data
|
|
|
|
// Write the retx PDU to RLC2
|
|
rlc2.write_pdu(retx2.msg, retx2.N_bytes);
|
|
|
|
assert(tester.n_sdus == 5);
|
|
for(int i=0; i<tester.n_sdus; i++)
|
|
{
|
|
assert(tester.sdus[i]->N_bytes == 10);
|
|
for(int j=0;j<10;j++)
|
|
assert(tester.sdus[i]->msg[j] == j);
|
|
}
|
|
}
|
|
|
|
void resegment_test_5()
|
|
{
|
|
|
|
// SDUs: | 10 | 10 | 10 | 10 | 10 |
|
|
// PDUs: |2|3| 40 |3|2|
|
|
// Retx PDU segments: | 20 | 20 |
|
|
|
|
srslte::log_filter log1("RLC_AM_1");
|
|
srslte::log_filter log2("RLC_AM_2");
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log2.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log1.set_hex_limit(-1);
|
|
log2.set_hex_limit(-1);
|
|
rlc_am_tester tester;
|
|
mac_dummy_timers timers;
|
|
|
|
rlc_am rlc1;
|
|
rlc_am rlc2;
|
|
|
|
int len;
|
|
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log2.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
|
|
rlc1.init(&log1, 1, &tester, &tester, &timers);
|
|
rlc2.init(&log2, 1, &tester, &tester, &timers);
|
|
|
|
LIBLTE_RRC_RLC_CONFIG_STRUCT cnfg;
|
|
cnfg.rlc_mode = LIBLTE_RRC_RLC_MODE_AM;
|
|
cnfg.dl_am_rlc.t_reordering = LIBLTE_RRC_T_REORDERING_MS5;
|
|
cnfg.dl_am_rlc.t_status_prohibit = LIBLTE_RRC_T_STATUS_PROHIBIT_MS5;
|
|
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
|
|
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
|
|
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
|
|
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
|
|
|
|
rlc1.configure(&cnfg);
|
|
rlc2.configure(&cnfg);
|
|
|
|
// Push 5 SDUs into RLC1
|
|
byte_buffer_t sdu_bufs[NBUFS];
|
|
for(int i=0;i<NBUFS;i++)
|
|
{
|
|
for(int j=0;j<10;j++)
|
|
sdu_bufs[i].msg[j] = j;
|
|
sdu_bufs[i].N_bytes = 10; // Give each buffer a size of 10 bytes
|
|
rlc1.write_sdu(&sdu_bufs[i]);
|
|
}
|
|
|
|
assert(59 == rlc1.get_buffer_state());
|
|
|
|
// Read 5 PDUs from RLC1 (2 bytes, 3 bytes, 40 bytes, 3 bytes, 2 bytes)
|
|
byte_buffer_t pdu_bufs[NBUFS];
|
|
pdu_bufs[0].N_bytes = rlc1.read_pdu(pdu_bufs[0].msg, 4); // 2 byte header + 2 byte payload
|
|
pdu_bufs[1].N_bytes = rlc1.read_pdu(pdu_bufs[1].msg, 5); // 2 byte header + 3 byte payload
|
|
pdu_bufs[2].N_bytes = rlc1.read_pdu(pdu_bufs[2].msg, 48); // 8 byte header + 40 byte payload
|
|
pdu_bufs[3].N_bytes = rlc1.read_pdu(pdu_bufs[3].msg, 5); // 2 byte header + 3 byte payload
|
|
pdu_bufs[4].N_bytes = rlc1.read_pdu(pdu_bufs[4].msg, 4); // 2 byte header + 2 byte payload
|
|
|
|
assert(0 == rlc1.get_buffer_state());
|
|
|
|
// Write PDUs into RLC2 (skip SN 2)
|
|
for(int i=0;i<NBUFS;i++)
|
|
{
|
|
if(i != 2)
|
|
rlc2.write_pdu(pdu_bufs[i].msg, pdu_bufs[i].N_bytes);
|
|
}
|
|
|
|
// Sleep to let reordering timeout expire
|
|
usleep(10000);
|
|
|
|
assert(4 == rlc2.get_buffer_state());
|
|
|
|
// Read status PDU from RLC2
|
|
byte_buffer_t status_buf;
|
|
status_buf.N_bytes = rlc2.read_pdu(status_buf.msg, 10); // 10 bytes is enough to hold the status
|
|
|
|
// Write status PDU to RLC1
|
|
rlc1.write_pdu(status_buf.msg, status_buf.N_bytes);
|
|
|
|
// Read the retx PDU from RLC1 and force resegmentation
|
|
byte_buffer_t retx1;
|
|
retx1.N_bytes = rlc1.read_pdu(retx1.msg, 27); // 7 byte header + 20 data
|
|
|
|
// Write the retx PDU to RLC2
|
|
rlc2.write_pdu(retx1.msg, retx1.N_bytes);
|
|
|
|
// Read the remaining segment
|
|
byte_buffer_t retx2;
|
|
retx2.N_bytes = rlc1.read_pdu(retx2.msg, 27); // 7 byte header + 20 data
|
|
|
|
// Write the retx PDU to RLC2
|
|
rlc2.write_pdu(retx2.msg, retx2.N_bytes);
|
|
|
|
assert(tester.n_sdus == 5);
|
|
for(int i=0; i<tester.n_sdus; i++)
|
|
{
|
|
assert(tester.sdus[i]->N_bytes == 10);
|
|
for(int j=0;j<10;j++)
|
|
assert(tester.sdus[i]->msg[j] == j);
|
|
}
|
|
}
|
|
|
|
void resegment_test_6()
|
|
{
|
|
// SDUs: |10|10|10| 54 | 54 | 54 | 54 | 54 | 54 |
|
|
// PDUs: |10|10|10| 270 | 54 |
|
|
// Retx PDU segments: | 120 | 150 |
|
|
|
|
srslte::log_filter log1("RLC_AM_1");
|
|
srslte::log_filter log2("RLC_AM_2");
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log2.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log1.set_hex_limit(-1);
|
|
log2.set_hex_limit(-1);
|
|
rlc_am_tester tester;
|
|
mac_dummy_timers timers;
|
|
|
|
rlc_am rlc1;
|
|
rlc_am rlc2;
|
|
|
|
int len;
|
|
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log2.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
|
|
rlc1.init(&log1, 1, &tester, &tester, &timers);
|
|
rlc2.init(&log2, 1, &tester, &tester, &timers);
|
|
|
|
LIBLTE_RRC_RLC_CONFIG_STRUCT cnfg;
|
|
cnfg.rlc_mode = LIBLTE_RRC_RLC_MODE_AM;
|
|
cnfg.dl_am_rlc.t_reordering = LIBLTE_RRC_T_REORDERING_MS5;
|
|
cnfg.dl_am_rlc.t_status_prohibit = LIBLTE_RRC_T_STATUS_PROHIBIT_MS5;
|
|
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
|
|
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
|
|
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
|
|
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
|
|
|
|
rlc1.configure(&cnfg);
|
|
rlc2.configure(&cnfg);
|
|
|
|
// Push SDUs into RLC1
|
|
byte_buffer_t sdu_bufs[9];
|
|
for(int i=0;i<3;i++)
|
|
{
|
|
for(int j=0;j<10;j++)
|
|
sdu_bufs[i].msg[j] = j;
|
|
sdu_bufs[i].N_bytes = 10;
|
|
rlc1.write_sdu(&sdu_bufs[i]);
|
|
}
|
|
for(int i=3;i<9;i++)
|
|
{
|
|
for(int j=0;j<54;j++)
|
|
sdu_bufs[i].msg[j] = j;
|
|
sdu_bufs[i].N_bytes = 54;
|
|
rlc1.write_sdu(&sdu_bufs[i]);
|
|
}
|
|
|
|
assert(369 == rlc1.get_buffer_state());
|
|
|
|
// Read PDUs from RLC1 (10, 10, 10, 270, 54)
|
|
byte_buffer_t pdu_bufs[5];
|
|
for(int i=0;i<3;i++) {
|
|
len = rlc1.read_pdu(pdu_bufs[i].msg, 12);
|
|
pdu_bufs[i].N_bytes = len;
|
|
}
|
|
len = rlc1.read_pdu(pdu_bufs[3].msg, 278);
|
|
pdu_bufs[3].N_bytes = len;
|
|
len = rlc1.read_pdu(pdu_bufs[4].msg, 56);
|
|
pdu_bufs[4].N_bytes = len;
|
|
|
|
assert(0 == rlc1.get_buffer_state());
|
|
|
|
// Write PDUs into RLC2 (skip SN 3)
|
|
for(int i=0;i<5;i++)
|
|
{
|
|
if(i != 3)
|
|
rlc2.write_pdu(pdu_bufs[i].msg, pdu_bufs[i].N_bytes);
|
|
}
|
|
|
|
// Sleep to let reordering timeout expire
|
|
usleep(10000);
|
|
|
|
assert(4 == rlc2.get_buffer_state());
|
|
|
|
// Read status PDU from RLC2
|
|
byte_buffer_t status_buf;
|
|
len = rlc2.read_pdu(status_buf.msg, 10); // 10 bytes is enough to hold the status
|
|
status_buf.N_bytes = len;
|
|
|
|
// Write status PDU to RLC1
|
|
rlc1.write_pdu(status_buf.msg, status_buf.N_bytes);
|
|
|
|
assert(278 == rlc1.get_buffer_state());
|
|
|
|
// Read the retx PDU from RLC1 and force resegmentation
|
|
byte_buffer_t retx1;
|
|
len = rlc1.read_pdu(retx1.msg, 129);
|
|
retx1.N_bytes = len;
|
|
|
|
// Write the retx PDU to RLC2
|
|
rlc2.write_pdu(retx1.msg, retx1.N_bytes);
|
|
|
|
assert(155 == rlc1.get_buffer_state());
|
|
|
|
// Read the remaining segment
|
|
byte_buffer_t retx2;
|
|
len = rlc1.read_pdu(retx2.msg, 157);
|
|
retx2.N_bytes = len;
|
|
|
|
// Write the retx PDU to RLC2
|
|
rlc2.write_pdu(retx2.msg, retx2.N_bytes);
|
|
|
|
assert(tester.n_sdus == 9);
|
|
for(int i=0;i<3;i++)
|
|
{
|
|
assert(tester.sdus[i]->N_bytes == 10);
|
|
for(int j=0;j<10;j++)
|
|
assert(tester.sdus[i]->msg[j] == j);
|
|
}
|
|
for(int i=3;i<9;i++)
|
|
{
|
|
assert(tester.sdus[i]->N_bytes == 54);
|
|
for(int j=0;j<54;j++)
|
|
assert(tester.sdus[i]->msg[j] == j);
|
|
}
|
|
}
|
|
|
|
// Retransmission of PDU segments of the same size
|
|
void resegment_test_7()
|
|
{
|
|
// SDUs: | 30 | 30 |
|
|
// PDUs: | 13 | 13 | 11 | 13 | 10 |
|
|
// Rxed PDUs | 13 | 13 | | 13 | 10 |
|
|
// Retx PDU segments: | 4 | 7 |
|
|
// Retx PDU segments: |3|3]3|2|
|
|
const uint32_t N_SDU_BUFS = 2;
|
|
const uint32_t N_PDU_BUFS = 5;
|
|
const uint32_t sdu_size = 30;
|
|
|
|
srslte::log_filter log1("RLC_AM_1");
|
|
srslte::log_filter log2("RLC_AM_2");
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log2.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log1.set_hex_limit(100);
|
|
log2.set_hex_limit(100);
|
|
|
|
#if HAVE_PCAP
|
|
rlc_pcap pcap;
|
|
pcap.open("rlc_am_test7.pcap", 0);
|
|
rlc_am_tester tester(&pcap);
|
|
#else
|
|
rlc_am_tester tester(NULL);
|
|
#endif
|
|
mac_dummy_timers timers;
|
|
|
|
rlc_am rlc1;
|
|
rlc_am rlc2;
|
|
|
|
int len;
|
|
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log2.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
|
|
rlc1.init(&log1, 1, &tester, &tester, &timers);
|
|
rlc2.init(&log2, 1, &tester, &tester, &timers);
|
|
|
|
LIBLTE_RRC_RLC_CONFIG_STRUCT cnfg;
|
|
cnfg.rlc_mode = LIBLTE_RRC_RLC_MODE_AM;
|
|
cnfg.dl_am_rlc.t_reordering = LIBLTE_RRC_T_REORDERING_MS5;
|
|
cnfg.dl_am_rlc.t_status_prohibit = LIBLTE_RRC_T_STATUS_PROHIBIT_MS5;
|
|
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
|
|
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
|
|
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
|
|
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
|
|
|
|
rlc1.configure(&cnfg);
|
|
rlc2.configure(&cnfg);
|
|
|
|
// Push 2 SDUs into RLC1
|
|
byte_buffer_t sdu_bufs[N_SDU_BUFS];
|
|
for(uint32_t i=0;i<N_SDU_BUFS;i++)
|
|
{
|
|
for(uint32_t j=0;j<sdu_size;j++) {
|
|
sdu_bufs[i].msg[j] = i;
|
|
}
|
|
sdu_bufs[i].N_bytes = sdu_size; // Give each buffer a size of 15 bytes
|
|
rlc1.write_sdu(&sdu_bufs[i]);
|
|
}
|
|
|
|
assert(65 == rlc1.get_buffer_state());
|
|
|
|
// Read PDUs from RLC1 (15 bytes each)
|
|
byte_buffer_t pdu_bufs[N_PDU_BUFS];
|
|
for(uint32_t i=0;i<N_PDU_BUFS;i++)
|
|
{
|
|
pdu_bufs[i].N_bytes = rlc1.read_pdu(pdu_bufs[i].msg, 15); // 2 bytes for header + 12 B payload
|
|
assert(pdu_bufs[i].N_bytes);
|
|
}
|
|
|
|
assert(0 == rlc1.get_buffer_state());
|
|
|
|
// Skip PDU with SN 2
|
|
for(uint32_t i=0;i<N_PDU_BUFS;i++) {
|
|
if (i!=2) {
|
|
rlc2.write_pdu(pdu_bufs[i].msg, pdu_bufs[i].N_bytes);
|
|
#if HAVE_PCAP
|
|
pcap.write_dl_am_ccch(pdu_bufs[i].msg, pdu_bufs[i].N_bytes);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
// Sleep to let reordering timeout expire
|
|
usleep(10000);
|
|
|
|
assert(12 == rlc1.get_buffer_state());
|
|
|
|
// first round of retx, forcing resegmentation
|
|
byte_buffer_t retx[4];
|
|
for (uint32_t i = 0; i < 4; i++) {
|
|
assert(rlc1.get_buffer_state());
|
|
retx[i].N_bytes = rlc1.read_pdu(retx[i].msg, 7);
|
|
assert(retx[i].N_bytes);
|
|
|
|
// Write the last two segments to RLC2
|
|
if (i > 1) {
|
|
rlc2.write_pdu(retx[i].msg, retx[i].N_bytes);
|
|
#if HAVE_PCAP
|
|
pcap.write_dl_am_ccch(retx[i].msg, retx[i].N_bytes);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
usleep(10000);
|
|
|
|
// Read status PDU from RLC2
|
|
assert(rlc2.get_buffer_state());
|
|
byte_buffer_t status_buf;
|
|
status_buf.N_bytes = rlc2.read_pdu(status_buf.msg, 10); // 10 bytes is enough to hold the status
|
|
|
|
// Write status PDU to RLC1
|
|
rlc1.write_pdu(status_buf.msg, status_buf.N_bytes);
|
|
#if HAVE_PCAP
|
|
pcap.write_ul_am_ccch(status_buf.msg, status_buf.N_bytes);
|
|
#endif
|
|
|
|
assert(15 == rlc1.get_buffer_state());
|
|
|
|
|
|
// second round of retx, forcing resegmentation
|
|
byte_buffer_t retx2[4];
|
|
for (uint32_t i = 0; i < 4; i++) {
|
|
assert(rlc1.get_buffer_state() != 0);
|
|
retx2[i].N_bytes = rlc1.read_pdu(retx2[i].msg, 7);
|
|
assert(retx2[i].N_bytes != 0);
|
|
|
|
rlc2.write_pdu(retx2[i].msg, retx2[i].N_bytes);
|
|
#if HAVE_PCAP
|
|
pcap.write_dl_am_ccch(retx[i].msg, retx[i].N_bytes);
|
|
#endif
|
|
}
|
|
|
|
// check buffer states
|
|
assert(0 == rlc1.get_buffer_state());
|
|
assert(0 == rlc2.get_buffer_state());
|
|
|
|
// Check number of SDUs and their content
|
|
assert(tester.n_sdus == N_SDU_BUFS);
|
|
for(int i=0; i<tester.n_sdus; i++)
|
|
{
|
|
assert(tester.sdus[i]->N_bytes == sdu_size);
|
|
for(uint32_t j=0;j<N_SDU_BUFS;j++) {
|
|
assert(tester.sdus[i]->msg[j] == i);
|
|
}
|
|
}
|
|
|
|
#if HAVE_PCAP
|
|
pcap.close();
|
|
#endif
|
|
}
|
|
|
|
|
|
// Retransmission of PDU segments with different size
|
|
void resegment_test_8()
|
|
{
|
|
// SDUs: | 30 | 30 |
|
|
// PDUs: | 15 | 15 | 15 | 15 | 15 |
|
|
// Rxed PDUs | 15 | | 15 | 15 |
|
|
// Retx PDU segments: | 7 | 7 | 7 | 7 |
|
|
// Retx PDU segments: | 6 | 6 ] 6 | 6 | 6 | 6 | 6 | 6 |
|
|
const uint32_t N_SDU_BUFS = 2;
|
|
const uint32_t N_PDU_BUFS = 5;
|
|
const uint32_t sdu_size = 30;
|
|
|
|
srslte::log_filter log1("RLC_AM_1");
|
|
srslte::log_filter log2("RLC_AM_2");
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log2.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log1.set_hex_limit(100);
|
|
log2.set_hex_limit(100);
|
|
|
|
#if HAVE_PCAP
|
|
rlc_pcap pcap;
|
|
pcap.open("rlc_am_test8.pcap", 0);
|
|
rlc_am_tester tester(&pcap);
|
|
#else
|
|
rlc_am_tester tester(NULL);
|
|
#endif
|
|
mac_dummy_timers timers;
|
|
|
|
rlc_am rlc1;
|
|
rlc_am rlc2;
|
|
|
|
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log2.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
|
|
rlc1.init(&log1, 1, &tester, &tester, &timers);
|
|
rlc2.init(&log2, 1, &tester, &tester, &timers);
|
|
|
|
LIBLTE_RRC_RLC_CONFIG_STRUCT cnfg;
|
|
cnfg.rlc_mode = LIBLTE_RRC_RLC_MODE_AM;
|
|
cnfg.dl_am_rlc.t_reordering = LIBLTE_RRC_T_REORDERING_MS5;
|
|
cnfg.dl_am_rlc.t_status_prohibit = LIBLTE_RRC_T_STATUS_PROHIBIT_MS5;
|
|
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
|
|
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
|
|
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
|
|
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
|
|
|
|
rlc1.configure(&cnfg);
|
|
rlc2.configure(&cnfg);
|
|
|
|
// Push 2 SDUs into RLC1
|
|
byte_buffer_t sdu_bufs[N_SDU_BUFS];
|
|
for(uint32_t i=0;i<N_SDU_BUFS;i++)
|
|
{
|
|
for(uint32_t j=0;j<sdu_size;j++) {
|
|
sdu_bufs[i].msg[j] = i;
|
|
}
|
|
sdu_bufs[i].N_bytes = sdu_size; // Give each buffer a size of 15 bytes
|
|
rlc1.write_sdu(&sdu_bufs[i]);
|
|
}
|
|
|
|
assert(65 == rlc1.get_buffer_state());
|
|
|
|
// Read PDUs from RLC1 (15 bytes each)
|
|
byte_buffer_t pdu_bufs[N_PDU_BUFS];
|
|
for(uint32_t i=0;i<N_PDU_BUFS;i++)
|
|
{
|
|
pdu_bufs[i].N_bytes = rlc1.read_pdu(pdu_bufs[i].msg, 15); // 12 bytes for header + payload
|
|
assert(pdu_bufs[i].N_bytes);
|
|
}
|
|
|
|
assert(0 == rlc1.get_buffer_state());
|
|
|
|
// Skip PDU one and two
|
|
for(uint32_t i=0;i<N_PDU_BUFS;i++) {
|
|
if (i < 1 || i > 2) {
|
|
rlc2.write_pdu(pdu_bufs[i].msg, pdu_bufs[i].N_bytes);
|
|
#if HAVE_PCAP
|
|
pcap.write_dl_am_ccch(pdu_bufs[i].msg, pdu_bufs[i].N_bytes);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
// Sleep to let reordering timeout expire
|
|
usleep(10000);
|
|
|
|
assert(12 == rlc1.get_buffer_state());
|
|
|
|
// first round of retx, forcing resegmentation
|
|
byte_buffer_t retx[4];
|
|
for (uint32_t i = 0; i < 3; i++) {
|
|
assert(rlc1.get_buffer_state());
|
|
retx[i].N_bytes = rlc1.read_pdu(retx[i].msg, 8);
|
|
assert(retx[i].N_bytes);
|
|
|
|
// Write the last two segments to RLC2
|
|
if (i > 1) {
|
|
rlc2.write_pdu(retx[i].msg, retx[i].N_bytes);
|
|
#if HAVE_PCAP
|
|
pcap.write_dl_am_ccch(retx[i].msg, retx[i].N_bytes);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
usleep(20000);
|
|
|
|
// Read status PDU from RLC2
|
|
assert(rlc2.get_buffer_state());
|
|
byte_buffer_t status_buf;
|
|
status_buf.N_bytes = rlc2.read_pdu(status_buf.msg, 10); // 10 bytes is enough to hold the status
|
|
|
|
// Write status PDU to RLC1
|
|
rlc1.write_pdu(status_buf.msg, status_buf.N_bytes);
|
|
#if HAVE_PCAP
|
|
pcap.write_ul_am_ccch(status_buf.msg, status_buf.N_bytes);
|
|
#endif
|
|
|
|
assert(15 == rlc1.get_buffer_state());
|
|
|
|
// second round of retx, reduce grant size to force different segment sizes
|
|
byte_buffer_t retx2[20];
|
|
for (uint32_t i = 0; i < 9; i++) {
|
|
assert(rlc1.get_buffer_state() != 0);
|
|
retx2[i].N_bytes = rlc1.read_pdu(retx2[i].msg, 7);
|
|
assert(retx2[i].N_bytes != 0);
|
|
rlc2.write_pdu(retx2[i].msg, retx2[i].N_bytes);
|
|
#if HAVE_PCAP
|
|
pcap.write_dl_am_ccch(retx[i].msg, retx[i].N_bytes);
|
|
#endif
|
|
}
|
|
|
|
// check buffer states
|
|
assert(0 == rlc1.get_buffer_state());
|
|
assert(0 == rlc2.get_buffer_state());
|
|
|
|
// Check number of SDUs and their content
|
|
assert(tester.n_sdus == N_SDU_BUFS);
|
|
for(int i=0; i<tester.n_sdus; i++)
|
|
{
|
|
assert(tester.sdus[i]->N_bytes == sdu_size);
|
|
for(uint32_t j=0;j<N_SDU_BUFS;j++) {
|
|
assert(tester.sdus[i]->msg[j] == i);
|
|
}
|
|
}
|
|
|
|
#if HAVE_PCAP
|
|
pcap.close();
|
|
#endif
|
|
}
|
|
|
|
|
|
void reset_test()
|
|
{
|
|
srslte::log_filter log1("RLC_AM_1");
|
|
srslte::log_filter log2("RLC_AM_2");
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log2.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
log1.set_hex_limit(-1);
|
|
log2.set_hex_limit(-1);
|
|
rlc_am_tester tester;
|
|
mac_dummy_timers timers;
|
|
|
|
rlc_am rlc1;
|
|
int len;
|
|
|
|
log1.set_level(srslte::LOG_LEVEL_DEBUG);
|
|
|
|
rlc1.init(&log1, 1, &tester, &tester, &timers);
|
|
|
|
LIBLTE_RRC_RLC_CONFIG_STRUCT cnfg;
|
|
cnfg.rlc_mode = LIBLTE_RRC_RLC_MODE_AM;
|
|
cnfg.dl_am_rlc.t_reordering = LIBLTE_RRC_T_REORDERING_MS5;
|
|
cnfg.dl_am_rlc.t_status_prohibit = LIBLTE_RRC_T_STATUS_PROHIBIT_MS5;
|
|
cnfg.ul_am_rlc.max_retx_thresh = LIBLTE_RRC_MAX_RETX_THRESHOLD_T4;
|
|
cnfg.ul_am_rlc.poll_byte = LIBLTE_RRC_POLL_BYTE_KB25;
|
|
cnfg.ul_am_rlc.poll_pdu = LIBLTE_RRC_POLL_PDU_P4;
|
|
cnfg.ul_am_rlc.t_poll_retx = LIBLTE_RRC_T_POLL_RETRANSMIT_MS5;
|
|
|
|
rlc1.configure(&cnfg);
|
|
|
|
// Push 1 SDU of size 10 into RLC1
|
|
byte_buffer_t sdu_buf;
|
|
*sdu_buf.msg = 1; // Write the index into the buffer
|
|
sdu_buf.N_bytes = 100;
|
|
rlc1.write_sdu(&sdu_buf);
|
|
|
|
// read 1 PDU from RLC1 and force segmentation
|
|
byte_buffer_t pdu_bufs;
|
|
len = rlc1.read_pdu(pdu_bufs.msg, 4);
|
|
pdu_bufs.N_bytes = len;
|
|
|
|
// reset RLC1
|
|
rlc1.reset();
|
|
|
|
// read another PDU segment from RLC1
|
|
len = rlc1.read_pdu(pdu_bufs.msg, 4);
|
|
pdu_bufs.N_bytes = len;
|
|
|
|
// now empty RLC buffer
|
|
len = rlc1.read_pdu(pdu_bufs.msg, 100);
|
|
pdu_bufs.N_bytes = len;
|
|
|
|
assert(0 == rlc1.get_buffer_state());
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
basic_test();
|
|
byte_buffer_pool::get_instance()->cleanup();
|
|
|
|
concat_test();
|
|
byte_buffer_pool::get_instance()->cleanup();
|
|
|
|
segment_test();
|
|
byte_buffer_pool::get_instance()->cleanup();
|
|
|
|
retx_test();
|
|
byte_buffer_pool::get_instance()->cleanup();
|
|
|
|
resegment_test_1();
|
|
byte_buffer_pool::get_instance()->cleanup();
|
|
|
|
resegment_test_2();
|
|
byte_buffer_pool::get_instance()->cleanup();
|
|
|
|
resegment_test_3();
|
|
byte_buffer_pool::get_instance()->cleanup();
|
|
|
|
resegment_test_4();
|
|
byte_buffer_pool::get_instance()->cleanup();
|
|
|
|
resegment_test_5();
|
|
byte_buffer_pool::get_instance()->cleanup();
|
|
|
|
resegment_test_6();
|
|
byte_buffer_pool::get_instance()->cleanup();
|
|
|
|
resegment_test_7();
|
|
byte_buffer_pool::get_instance()->cleanup();
|
|
|
|
resegment_test_8();
|
|
byte_buffer_pool::get_instance()->cleanup();
|
|
|
|
reset_test();
|
|
byte_buffer_pool::get_instance()->cleanup();
|
|
}
|