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srsRAN_4G
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add MAC tests

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master
Andre Puschmann 6 years ago
parent 81067750a7
commit 2dfc6698eb
1 changed files with 400 additions and 4 deletions
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402
srsue/test/mac_test.cc
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@ -20,14 +20,21 @@
*/
#include "srslte/common/log_filter.h"
#include "srslte/common/mac_pcap.h"
#include "srslte/interfaces/ue_interfaces.h"
#include "srsue/hdr/stack/mac/mac.h"
#include "srsue/hdr/stack/mac/mux.h"
#include <assert.h>
#include <iostream>
#include <string.h>
using namespace srsue;
using namespace srslte;
#define HAVE_PCAP 0
static std::unique_ptr<srslte::mac_pcap> pcap_handle = nullptr;
#define TESTASSERT(cond) \
{ \
if (!(cond)) { \
@ -43,14 +50,27 @@ class rlc_dummy : public srsue::rlc_interface_mac
{
public:
rlc_dummy(srslte::log_filter* log_) : received_bytes(0), log(log_) {}
bool has_data(const uint32_t lcid) { return false; }
uint32_t get_buffer_state(const uint32_t lcid) { return 10; }
int read_pdu(uint32_t lcid, uint8_t* payload, uint32_t nof_bytes) { return 0; };
bool has_data(const uint32_t lcid) { return ul_queues[lcid] > 0; }
uint32_t get_buffer_state(const uint32_t lcid) { return ul_queues[lcid]; }
int read_pdu(uint32_t lcid, uint8_t* payload, uint32_t nof_bytes)
{
uint32_t len = SRSLTE_MIN(ul_queues[lcid], nof_bytes);
// set payload bytes to LCID so we can check later if the scheduling was correct
memset(payload, lcid, len);
// remove from UL queue
ul_queues[lcid] -= len;
return len;
};
void write_pdu(uint32_t lcid, uint8_t* payload, uint32_t nof_bytes)
{
log->debug_hex(payload, nof_bytes, "Received %d B on LCID %d\n", nof_bytes, lcid);
received_bytes += nof_bytes;
};
void write_sdu(uint32_t lcid, uint32_t nof_bytes) { ul_queues[lcid] += nof_bytes; }
void write_pdu_bcch_bch(uint8_t* payload, uint32_t nof_bytes){};
void write_pdu_bcch_dlsch(uint8_t* payload, uint32_t nof_bytes){};
void write_pdu_pcch(uint8_t* payload, uint32_t nof_bytes){};
@ -60,6 +80,8 @@ public:
private:
uint32_t received_bytes;
srslte::log_filter* log;
// UL queues where key is LCID and value the queue length
std::map<uint32_t, uint32_t> ul_queues;
};
class phy_dummy : public phy_interface_mac_lte
@ -175,12 +197,386 @@ int mac_unpack_test()
return SRSLTE_SUCCESS;
}
// Basic test with a single padding byte and a 10B SCH SDU
int mac_ul_sch_pdu_test1()
{
const uint8_t tv[] = {0x3f, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01};
srslte::log_filter mac_log("MAC");
mac_log.set_level(srslte::LOG_LEVEL_DEBUG);
mac_log.set_hex_limit(100000);
srslte::log_filter rlc_log("RLC");
rlc_log.set_level(srslte::LOG_LEVEL_DEBUG);
rlc_log.set_hex_limit(100000);
// dummy layers
phy_dummy phy;
rlc_dummy rlc(&rlc_log);
rrc_dummy rrc;
// the actual MAC
mac mac;
mac.init(&phy, &rlc, &rrc, &mac_log);
const uint16_t crnti = 0x1001;
mac.set_ho_rnti(crnti, 0);
// write dummy data
rlc.write_sdu(1, 10);
// create UL action and grant and push MAC PDU
{
mac_interface_phy_lte::tb_action_ul_t ul_action = {};
mac_interface_phy_lte::mac_grant_ul_t mac_grant = {};
mac_grant.rnti = crnti; // make sure MAC picks it up as valid UL grant
mac_grant.tb.ndi_present = true;
mac_grant.tb.ndi = true;
mac_grant.tb.tbs = 12; // give room for MAC subheader, SDU and one padding byte
int cc_idx = 0;
// Send grant to MAC and get action for this TB, then call tb_decoded to unlock MAC
mac.new_grant_ul(cc_idx, mac_grant, &ul_action);
// print generated PDU
mac_log.info_hex(ul_action.tb.payload, mac_grant.tb.tbs, "Generated PDU (%d B)\n", mac_grant.tb.tbs);
#if HAVE_PCAP
pcap_handle->write_ul_crnti(ul_action.tb.payload, mac_grant.tb.tbs, 0x1001, true, 1);
#endif
TESTASSERT(memcmp(ul_action.tb.payload, tv, sizeof(tv)) == 0);
}
// make sure MAC PDU thread picks up before stopping
sleep(1);
mac.run_tti(0);
mac.stop();
return SRSLTE_SUCCESS;
}
// Basic logical channel prioritization test with 3 SCH SDUs
int mac_ul_logical_channel_prioritization_test1()
{
// PDU layout (21 B in total)
// - 2 B MAC subheader for SCH LCID=1
// - 2 B MAC subheader for SCH LCID=2
// - 1 B MAC subheader for SCH LCID=3
// - 10 B MAC SDU for LCID=1
// - 4 B MAC SDU for LCID=2
// - 2 B MAC SDU for LCID=3
const uint8_t tv[] = {0x21, 0x0a, 0x22, 0x04, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x03, 0x03};
srslte::log_filter mac_log("MAC");
mac_log.set_level(srslte::LOG_LEVEL_DEBUG);
mac_log.set_hex_limit(100000);
srslte::log_filter rlc_log("RLC");
rlc_log.set_level(srslte::LOG_LEVEL_DEBUG);
rlc_log.set_hex_limit(100000);
// dummy layers
phy_dummy phy;
rlc_dummy rlc(&rlc_log);
rrc_dummy rrc;
// the actual MAC
mac mac;
mac.init(&phy, &rlc, &rrc, &mac_log);
const uint16_t crnti = 0x1001;
mac.set_ho_rnti(crnti, 0);
// generate configs for three LCIDs with different priority and PBR
std::vector<logical_channel_config_t> lcids;
logical_channel_config_t config = {};
config.lcid = 1;
config.lcg = 1;
config.PBR = 10;
config.BSD = 1000; // 1000ms
config.priority = 1; // highest prio
lcids.push_back(config);
config.lcid = 2;
config.lcg = 1;
config.PBR = 4;
config.priority = 2;
lcids.push_back(config);
config.lcid = 3;
config.lcg = 1;
config.PBR = 2;
config.priority = 3;
lcids.push_back(config);
// setup LCIDs in MAC
for (auto& channel : lcids) {
mac.setup_lcid(channel.lcid, channel.lcg, channel.priority, channel.PBR, channel.BSD);
}
// write dummy data for each LCID (except CCCH)
rlc.write_sdu(1, 50);
rlc.write_sdu(2, 40);
rlc.write_sdu(3, 20);
// create UL action and grant and push MAC PDU
{
mac_interface_phy_lte::tb_action_ul_t ul_action = {};
mac_interface_phy_lte::mac_grant_ul_t mac_grant = {};
mac_grant.rnti = crnti; // make sure MAC picks it up as valid UL grant
mac_grant.tb.ndi_present = true;
mac_grant.tb.ndi = true;
mac_grant.tb.tbs = 21; // each LCID has more data to transmit than is available
int cc_idx = 0;
// Send grant to MAC and get action for this TB, then call tb_decoded to unlock MAC
mac.new_grant_ul(cc_idx, mac_grant, &ul_action);
// print generated PDU
mac_log.info_hex(ul_action.tb.payload, mac_grant.tb.tbs, "Generated PDU (%d B)\n", mac_grant.tb.tbs);
#if HAVE_PCAP
pcap_handle->write_ul_crnti(ul_action.tb.payload, mac_grant.tb.tbs, 0x1001, true, 1);
#endif
TESTASSERT(memcmp(ul_action.tb.payload, tv, sizeof(tv)) == 0);
}
// make sure MAC PDU thread picks up before stopping
sleep(1);
mac.run_tti(0);
mac.stop();
return SRSLTE_SUCCESS;
}
// Similar test like above but with a much larger UL grant, we expect that each LCID is fully served
int mac_ul_logical_channel_prioritization_test2()
{
// PDU layout (120 B in total)
// - 1 B MAC subheader for Short BSR
// - 2 B MAC subheader for SCH LCID=1
// - 2 B MAC subheader for SCH LCID=2
// - 2 B MAC subheader for SCH LCID=3
// - 1 B MAC subheader for Padding
//
// - 1 B Short BSR
// - 50 B MAC SDU for LCID=1
// - 40 B MAC SDU for LCID=2
// - 20 B MAC SDU for LCID=3
// - 1 B Padding
// =120 N
const uint8_t tv[] = {0x3d, 0x21, 0x32, 0x22, 0x28, 0x23, 0x14, 0x1f, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02,
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x00};
srslte::log_filter mac_log("MAC");
mac_log.set_level(srslte::LOG_LEVEL_DEBUG);
mac_log.set_hex_limit(100000);
srslte::log_filter rlc_log("RLC");
rlc_log.set_level(srslte::LOG_LEVEL_DEBUG);
rlc_log.set_hex_limit(100000);
// dummy layers
phy_dummy phy;
rlc_dummy rlc(&rlc_log);
rrc_dummy rrc;
// the actual MAC
mac mac;
mac.init(&phy, &rlc, &rrc, &mac_log);
const uint16_t crnti = 0x1001;
mac.set_ho_rnti(crnti, 0);
// generate configs for three LCIDs with different priority and PBR
std::vector<logical_channel_config_t> lcids;
logical_channel_config_t config = {};
config.lcid = 1;
config.lcg = 1;
config.PBR = 10;
config.BSD = 1000; // 1000ms
config.priority = 1; // highest prio
lcids.push_back(config);
config.lcid = 2;
config.lcg = 1;
config.PBR = 4;
config.priority = 2;
lcids.push_back(config);
config.lcid = 3;
config.lcg = 1;
config.PBR = 2;
config.priority = 3;
lcids.push_back(config);
// setup LCIDs in MAC
for (auto& channel : lcids) {
mac.setup_lcid(channel.lcid, channel.lcg, channel.priority, channel.PBR, channel.BSD);
}
// write dummy data for each LCID (except CCCH)
rlc.write_sdu(1, 50);
rlc.write_sdu(2, 40);
rlc.write_sdu(3, 20);
// create UL action and grant and push MAC PDU
{
mac_interface_phy_lte::tb_action_ul_t ul_action = {};
mac_interface_phy_lte::mac_grant_ul_t mac_grant = {};
mac_grant.rnti = crnti; // make sure MAC picks it up as valid UL grant
mac_grant.tb.ndi_present = true;
mac_grant.tb.ndi = true;
mac_grant.tb.tbs = 120; // each LCID has more data to transmit than is available
int cc_idx = 0;
// Send grant to MAC and get action for this TB, then call tb_decoded to unlock MAC
mac.new_grant_ul(cc_idx, mac_grant, &ul_action);
// print generated PDU
mac_log.info_hex(ul_action.tb.payload, mac_grant.tb.tbs, "Generated PDU (%d B)\n", mac_grant.tb.tbs);
#if HAVE_PCAP
pcap_handle->write_ul_crnti(ul_action.tb.payload, mac_grant.tb.tbs, 0x1001, true, 1);
#endif
TESTASSERT(memcmp(ul_action.tb.payload, tv, sizeof(tv)) == 0);
}
// make sure MAC PDU thread picks up before stopping
sleep(1);
mac.run_tti(0);
mac.stop();
return SRSLTE_SUCCESS;
}
// Basic logical channel prioritization test with 2 SCH SDUs
// Using default setting for dedicated bearer
int mac_ul_logical_channel_prioritization_test3()
{
// PDU layout (21 B in total)
// - 2 B MAC subheader for SCH LCID=4
// - 1 B MAC subheader for SCH LCID=3
// - 10 B MAC SDU for LCID=4
// - 8 B MAC SDU for LCID=3
const uint8_t tv[] = {0x24, 0x0a, 0x03, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
0x04, 0x04, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03};
srslte::log_filter mac_log("MAC");
mac_log.set_level(srslte::LOG_LEVEL_DEBUG);
mac_log.set_hex_limit(100000);
srslte::log_filter rlc_log("RLC");
rlc_log.set_level(srslte::LOG_LEVEL_DEBUG);
rlc_log.set_hex_limit(100000);
// dummy layers
phy_dummy phy;
rlc_dummy rlc(&rlc_log);
rrc_dummy rrc;
// the actual MAC
mac mac;
mac.init(&phy, &rlc, &rrc, &mac_log);
const uint16_t crnti = 0x1001;
mac.set_ho_rnti(crnti, 0);
// generate configs for two LCIDs with different priority and PBR
std::vector<logical_channel_config_t> lcids;
logical_channel_config_t config = {};
// The config of DRB1
config.lcid = 3;
config.lcg = 3;
config.PBR = 8;
config.BSD = 100; // 1000ms
config.priority = 15; // highest prio
lcids.push_back(config);
// DRB2
config.lcid = 4;
config.lcg = 1;
config.PBR = 0;
config.priority = 7;
lcids.push_back(config);
// setup LCIDs in MAC
for (auto& channel : lcids) {
mac.setup_lcid(channel.lcid, channel.lcg, channel.priority, channel.PBR, channel.BSD);
}
// write dummy data for each LCID
rlc.write_sdu(3, 50);
rlc.write_sdu(4, 50);
// create UL action and grant and push MAC PDU
{
mac_interface_phy_lte::tb_action_ul_t ul_action = {};
mac_interface_phy_lte::mac_grant_ul_t mac_grant = {};
mac_grant.rnti = crnti; // make sure MAC picks it up as valid UL grant
mac_grant.tb.ndi_present = true;
mac_grant.tb.ndi = true;
mac_grant.tb.tbs = 21; // each LCID has more data to transmit than is available
int cc_idx = 0;
// Send grant to MAC and get action for this TB, then call tb_decoded to unlock MAC
mac.new_grant_ul(cc_idx, mac_grant, &ul_action);
// print generated PDU
mac_log.info_hex(ul_action.tb.payload, mac_grant.tb.tbs, "Generated PDU (%d B)\n", mac_grant.tb.tbs);
#if HAVE_PCAP
pcap_handle->write_ul_crnti(ul_action.tb.payload, mac_grant.tb.tbs, 0x1001, true, 1);
#endif
TESTASSERT(memcmp(ul_action.tb.payload, tv, sizeof(tv)) == 0);
}
// make sure MAC PDU thread picks up before stopping
sleep(1);
mac.run_tti(0);
mac.stop();
return SRSLTE_SUCCESS;
}
int main(int argc, char** argv)
{
#if HAVE_PCAP
pcap_handle = std::unique_ptr<srslte::mac_pcap>(new srslte::mac_pcap());
pcap_handle->open("mac_test.pcap");
#endif
if (mac_unpack_test()) {
printf("MAC PDU unpack test failed.\n");
return -1;
}
if (mac_ul_sch_pdu_test1()) {
printf("mac_ul_sch_pdu_test1() test failed.\n");
return -1;
}
if (mac_ul_logical_channel_prioritization_test1()) {
printf("mac_ul_logical_channel_prioritization_test1() test failed.\n");
return -1;
}
if (mac_ul_logical_channel_prioritization_test2()) {
printf("mac_ul_logical_channel_prioritization_test2() test failed.\n");
return -1;
}
if (mac_ul_logical_channel_prioritization_test3()) {
printf("mac_ul_logical_channel_prioritization_test3() test failed.\n");
return -1;
}
return 0;
}

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