@ -35,6 +35,7 @@
# include <boost/program_options.hpp>
# include <boost/program_options/parsers.hpp>
# include <assert.h>
# include <srslte/upper/rlc_interface.h>
# define SDU_SIZE 1500
@ -44,15 +45,16 @@ using namespace srslte;
namespace bpo = boost : : program_options ;
typedef struct {
uint32_t test_duration_sec ;
float error_rate ;
uint32_t sdu_gen_delay_usec ;
uint32_t pdu_tx_delay_usec ;
bool reestablish ;
uint32_t log_level ;
bool single_tx ;
bool write_pcap ;
float opp_sdu_ratio ;
std : : string mode ;
uint32_t test_duration_sec ;
float error_rate ;
uint32_t sdu_gen_delay_usec ;
uint32_t pdu_tx_delay_usec ;
bool reestablish ;
uint32_t log_level ;
bool single_tx ;
bool write_pcap ;
float opp_sdu_ratio ;
} stress_test_args_t ;
void parse_args ( stress_test_args_t * args , int argc , char * argv [ ] ) {
@ -67,6 +69,7 @@ void parse_args(stress_test_args_t *args, int argc, char *argv[]) {
// Command line or config file options
bpo : : options_description common ( " Configuration options " ) ;
common . add_options ( )
( " mode " , bpo : : value < std : : string > ( & args - > mode ) - > default_value ( " AM " ) , " Whether to test RLC acknowledged or unacknowledged mode (AM/UM) " )
( " duration " , bpo : : value < uint32_t > ( & args - > test_duration_sec ) - > default_value ( 10 ) , " Duration (sec) " )
( " sdu_gen_delay " , bpo : : value < uint32_t > ( & args - > sdu_gen_delay_usec ) - > default_value ( 10 ) , " SDU generation delay (usec) " )
( " pdu_tx_delay " , bpo : : value < uint32_t > ( & args - > pdu_tx_delay_usec ) - > default_value ( 10 ) , " Delay in MAC for transfering PDU from tx'ing RLC to rx'ing RLC (usec) " )
@ -213,13 +216,13 @@ private:
class rlc_ am_ tester
class rlc_ tester
: public pdcp_interface_rlc
, public rrc_interface_rlc
, public thread
{
public :
rlc_ am_ tester( rlc_interface_pdcp * rlc_ , std : : string name_ , uint32_t sdu_gen_delay_usec_ ) {
rlc_ tester( rlc_interface_pdcp * rlc_ , std : : string name_ , uint32_t sdu_gen_delay_usec_ ) {
rlc = rlc_ ;
run_enable = true ;
running = false ;
@ -248,7 +251,7 @@ public:
assert ( lcid = = 1 ) ;
assert ( sdu - > N_bytes = = SDU_SIZE ) ;
byte_buffer_pool : : get_instance ( ) - > deallocate ( sdu ) ;
std : : cout < < " rlc_ am_ tester " < < name < < " received " < < rx_pdus + + < < " PDUs " < < std : : endl ;
std : : cout < < " rlc_ tester " < < name < < " received " < < rx_pdus + + < < " PDUs " < < std : : endl ;
}
void write_pdu_bcch_bch ( byte_buffer_t * sdu ) { }
void write_pdu_bcch_dlsch ( byte_buffer_t * sdu ) { }
@ -264,9 +267,9 @@ private:
uint8_t sn = 0 ;
running = true ;
while ( run_enable ) {
byte_buffer_t * pdu = byte_buffer_pool : : get_instance ( ) - > allocate ( " rlc_ am_ tester::run_thread" ) ;
byte_buffer_t * pdu = byte_buffer_pool : : get_instance ( ) - > allocate ( " rlc_ tester::run_thread" ) ;
if ( ! pdu ) {
printf ( " Fatal Error: Could not allocate PDU in rlc_ am_ tester::run_thread\n " ) ;
printf ( " Fatal Error: Could not allocate PDU in rlc_ tester::run_thread\n " ) ;
exit ( - 1 ) ;
}
for ( uint32_t i = 0 ; i < SDU_SIZE ; i + + ) {
@ -293,8 +296,8 @@ private:
void stress_test ( stress_test_args_t args )
{
srslte : : log_filter log1 ( " RLC_ AM_ 1" ) ;
srslte : : log_filter log2 ( " RLC_ AM_ 2" ) ;
srslte : : log_filter log1 ( " RLC_ 1" ) ;
srslte : : log_filter log2 ( " RLC_ 2" ) ;
log1 . set_level ( ( LOG_LEVEL_ENUM ) args . log_level ) ;
log2 . set_level ( ( LOG_LEVEL_ENUM ) args . log_level ) ;
log1 . set_hex_limit ( - 1 ) ;
@ -308,24 +311,37 @@ void stress_test(stress_test_args_t args)
rlc rlc1 ;
rlc rlc2 ;
rlc_ am_ tester tester1 ( & rlc1 , " tester1 " , args . sdu_gen_delay_usec ) ;
rlc_ am_ tester tester2 ( & rlc2 , " tester2 " , args . sdu_gen_delay_usec ) ;
rlc_ tester tester1 ( & rlc1 , " tester1 " , args . sdu_gen_delay_usec ) ;
rlc_ tester tester2 ( & rlc2 , " tester2 " , args . sdu_gen_delay_usec ) ;
mac_dummy mac ( & rlc1 , & rlc2 , args . error_rate , args . opp_sdu_ratio , args . pdu_tx_delay_usec , & pcap ) ;
ue_interface ue ;
rlc1 . init ( & tester1 , & tester1 , & ue , & log1 , & mac , 0 ) ;
rlc2 . init ( & tester2 , & tester2 , & ue , & log2 , & mac , 0 ) ;
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 ;
srslte_rlc_config_t cnfg_ ( & cnfg ) ;
srslte_rlc_config_t cnfg_ ;
if ( args . mode = = " AM " ) {
// config RLC AM bearer
cnfg_ . rlc_mode = LIBLTE_RRC_RLC_MODE_AM ;
cnfg_ . am . max_retx_thresh = 4 ;
cnfg_ . am . poll_byte = 25 * 1000 ;
cnfg_ . am . poll_pdu = 4 ;
cnfg_ . am . t_poll_retx = 5 ;
cnfg_ . am . t_reordering = 5 ;
cnfg_ . am . t_status_prohibit = 5 ;
} else if ( args . mode = = " UM " ) {
// config UM bearer
cnfg_ . rlc_mode = LIBLTE_RRC_RLC_MODE_UM_BI ;
cnfg_ . um . t_reordering = 5 ;
cnfg_ . um . rx_mod = 32 ;
cnfg_ . um . rx_sn_field_length = RLC_UMD_SN_SIZE_5_BITS ;
cnfg_ . um . rx_window_size = 16 ;
cnfg_ . um . tx_sn_field_length = RLC_UMD_SN_SIZE_5_BITS ;
cnfg_ . um . tx_mod = 32 ;
} else {
cout < < " Unsupported RLC mode " < < args . mode < < " , exiting. " < < endl ;
return ;
}
rlc1 . add_bearer ( 1 , cnfg_ ) ;
rlc2 . add_bearer ( 1 , cnfg_ ) ;