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23fd8953ea77341e65ddf26e59dc20b5f393fdb8
openairinterface5g/targets/RT/USER/eNB_transport_IQ.c
T
navid 23fd8953ea * add device to rrh gateway (only usrp for now) 
* update the device common interface for eNB/UE (common_lib.h)


git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7724 818b1a75-f10b-46b9-bf7c-635c3b92a50f
2015-07-23 13:24:17 +00:00

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26 KiB
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/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenAirInterface is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OpenAirInterface.The full GNU General Public License is
included in this distribution in the file called "COPYING". If not,
see <http://www.gnu.org/licenses/>.
Contact Information
OpenAirInterface Admin: openair_admin@eurecom.fr
OpenAirInterface Tech : openair_tech@eurecom.fr
OpenAirInterface Dev : openair4g-devel@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/*! \file eNB_transport_IQ.c
* \brief eNB transport IQ sampels
* \author Katerina Trilyraki, Navid Nikaein, Raymond Knopp
* \date 2015
* \version 0.1
* \company Eurecom
* \maintainer: navid.nikaein@eurecom.fr
* \note
* \warning very experimental
*/
#include <unistd.h>
#include <time.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include "common_lib.h"
#include "PHY/defs.h"
#include "rrh_gw.h"
#include "rrh_gw_externs.h"
#include "rt_wrapper.h"
#define PRINTF_PERIOD 3750
#define HEADER_SIZE ((sizeof(int32_t) + sizeof(openair0_timestamp))>>2)
//#undef LOWLATENCY
/******************************************************************************
** FUNCTION PROTOTYPES **
******************************************************************************/
void *rrh_eNB_rx_thread(void *);
void *rrh_eNB_tx_thread(void *);
void *rrh_proc_eNB_thread(void *);
void *rrh_eNB_thread(void *);
void set_rt_period( openair0_config_t openair0_cfg);
void check_dev_config( rrh_module_t *mod_enb);
pthread_t main_rrh_eNB_thread;
pthread_attr_t attr, attr_proc;
struct sched_param sched_param_rrh;
pthread_cond_t sync_eNB_cond[4];
pthread_mutex_t sync_eNB_mutex[4];
openair0_timestamp nrt_eNB_counter[4]= {0,0,0,0};
int32_t overflow_rx_buffer_eNB[4]= {0,0,0,0};
int32_t nsamps_eNB[4]= {0,0,0,0};
int32_t eNB_tx_started=0,eNB_rx_started=0;
int32_t counter_eNB_rx[4]= {0,0,0,0};
int32_t counter_eNB_tx[4]= {0,0,0,0};
uint8_t RT_flag_eNB,NRT_flag_eNB;
int32_t **tx_buffer_eNB, **rx_buffer_eNB;
void *rrh_eNB_thread_status;
void **rx_eNB; //was fixed to 2 ant
void **tx_eNB; //was fixed to 2 ant
int sync_eNB_rx[4]= {-1,-1,-1,-1};
openair0_timestamp timestamp_eNB_tx[4]= {0,0,0,0},timestamp_eNB_rx[4]= {0,0,0,0};
unsigned int rx_pos=0, next_rx_pos=0;
unsigned int tx_pos=0, prev_tx_pos=0;
/*! \fn void create_eNB_trx_threads( rrh_module_t *dev_enb, uint8_t RT_flag,uint8_t NRT_flag)
* \brief this function
* \param[in]
* \param[out]
* \return
* \note
* @ingroup _oai
*/
void create_eNB_trx_threads( rrh_module_t *mod_enb, uint8_t RT_flag, uint8_t NRT_flag){
//int i;
int error_code_eNB;
RT_flag_eNB=RT_flag;
NRT_flag_eNB=NRT_flag;
pthread_attr_init(&attr);
sched_param_rrh.sched_priority = sched_get_priority_max(SCHED_FIFO);
pthread_attr_setschedparam(&attr,&sched_param_rrh);
pthread_attr_setschedpolicy(&attr,SCHED_FIFO);
/*for (i=0; i<4; i++) {
pthread_mutex_init(&sync_eNB_mutex[i],NULL);
pthread_cond_init(&sync_eNB_cond[i],NULL);
}*/
/* handshake with client to exchange parameters */
mod_enb->eth_dev.trx_start_func(&mod_enb->eth_dev);//change port make it plus_id
memcpy((void*)&mod_enb->devs->openair0_cfg,(void *)&mod_enb->eth_dev.openair0_cfg,sizeof(openair0_config_t));
/* update certain parameters */
if ( mod_enb->devs->type == EXMIMO_IF ) {
if ( mod_enb->devs->openair0_cfg.num_rb_dl == 100 ) {
mod_enb->devs->openair0_cfg.samples_per_packet = 2048;
mod_enb->devs->openair0_cfg.tx_forward_nsamps = 175;
mod_enb->devs->openair0_cfg.tx_delay = 8;
}
else if( mod_enb->devs->openair0_cfg.num_rb_dl == 50 ){
mod_enb->devs->openair0_cfg.samples_per_packet = 2048;
mod_enb->devs->openair0_cfg.tx_forward_nsamps = 95;
mod_enb->devs->openair0_cfg.tx_delay = 5;
}
else if( mod_enb->devs->openair0_cfg.num_rb_dl == 25 ){
mod_enb->devs->openair0_cfg.samples_per_packet = 1024;
mod_enb->devs->openair0_cfg.tx_forward_nsamps = 70;
mod_enb->devs->openair0_cfg.tx_delay = 6;
}
else if( mod_enb->devs->openair0_cfg.num_rb_dl == 6 ){
mod_enb->devs->openair0_cfg.samples_per_packet = 256;
mod_enb->devs->openair0_cfg.tx_forward_nsamps = 40;
mod_enb->devs->openair0_cfg.tx_delay = 8;
}
}
else if (mod_enb->devs->type == USRP_IF) {
if ( mod_enb->devs->openair0_cfg.num_rb_dl == 100 ) {
mod_enb->devs->openair0_cfg.samples_per_packet = 2048;
mod_enb->devs->openair0_cfg.tx_forward_nsamps = 175;
mod_enb->devs->openair0_cfg.tx_delay = 8;
}
else if( mod_enb->devs->openair0_cfg.num_rb_dl == 50 ) {
mod_enb->devs->openair0_cfg.samples_per_packet = 2048;
mod_enb->devs->openair0_cfg.tx_forward_nsamps = 95;
mod_enb->devs->openair0_cfg.tx_delay = 5;
}
else if( mod_enb->devs->openair0_cfg.num_rb_dl == 25 ) {
mod_enb->devs->openair0_cfg.samples_per_packet = 1024;
mod_enb->devs->openair0_cfg.tx_forward_nsamps = 70;
mod_enb->devs->openair0_cfg.tx_delay = 6;
}
else if( mod_enb->devs->openair0_cfg.num_rb_dl == 6 ) {
mod_enb->devs->openair0_cfg.samples_per_packet = 256;
mod_enb->devs->openair0_cfg.tx_forward_nsamps = 40;
mod_enb->devs->openair0_cfg.tx_delay = 8;
}
}
else if (mod_enb->devs->type == BLADERF_IF) {
if ( mod_enb->devs->openair0_cfg.num_rb_dl == 100 ) {
mod_enb->devs->openair0_cfg.samples_per_packet = 2048;
mod_enb->devs->openair0_cfg.tx_forward_nsamps = 175;
mod_enb->devs->openair0_cfg.tx_delay = 8;
}
else if( mod_enb->devs->openair0_cfg.num_rb_dl == 50 ){
mod_enb->devs->openair0_cfg.samples_per_packet = 2048;
mod_enb->devs->openair0_cfg.tx_forward_nsamps = 95;
mod_enb->devs->openair0_cfg.tx_delay = 5;
}
else if( mod_enb->devs->openair0_cfg.num_rb_dl == 25 ){
mod_enb->devs->openair0_cfg.samples_per_packet = 1024;
mod_enb->devs->openair0_cfg.tx_forward_nsamps = 70;
mod_enb->devs->openair0_cfg.tx_delay = 6;
}
else if( mod_enb->devs->openair0_cfg.num_rb_dl == 6 ){
mod_enb->devs->openair0_cfg.samples_per_packet = 256;
mod_enb->devs->openair0_cfg.tx_forward_nsamps = 40;
mod_enb->devs->openair0_cfg.tx_delay = 8;
}
}
/* check sanity of received configuration parameters and print */
check_dev_config(mod_enb);
#ifndef ETHERNET
/* initialize and apply configuration to associated RF device */
if (openair0_device_init(mod_enb->devs, &mod_enb->devs->openair0_cfg)<0){
LOG_E(RRH,"Exiting, cannot initialize RF device.\n");
exit(-1);
}
else {
LOG_I(RRH,"RF device has been successfully initialized.\n");
}
#endif
error_code_eNB = pthread_create(&main_rrh_eNB_thread, &attr, rrh_eNB_thread, (void *)mod_enb);
if (error_code_eNB) {
LOG_E(RRH,"Error while creating eNB thread\n");
exit(-1);
}
}
/*! \fn void *rrh_eNB_thread(void *arg)
* \brief this function
* \param[in]
* \param[out]
* \return
* \note
* @ingroup _oai
*/
void *rrh_eNB_thread(void *arg)
{
rrh_module_t *dev=(rrh_module_t *)arg;
pthread_t eNB_rx_thread, eNB_tx_thread;
int error_code_eNB_rx, error_code_eNB_tx;
int32_t i,j;
void *tmp;
unsigned int samples_per_frame=0;
while (rrh_exit==0) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_TRX, 1 );
if (dev->devs->type != NONE_IF) {
set_rt_period(dev->eth_dev.openair0_cfg);
}
samples_per_frame = dev->eth_dev.openair0_cfg.samples_per_frame;
/* allocate memory for TX/RX buffers
each antenna port has a TX and a RX buffer
each TX and RX buffer is of (samples_per_frame + HEADER_SIZE) samples (size of samples is 4 bytes) */
rx_buffer_eNB = (int32_t**)malloc16(dev->eth_dev.openair0_cfg.rx_num_channels*sizeof(int32_t*));
tx_buffer_eNB = (int32_t**)malloc16(dev->eth_dev.openair0_cfg.tx_num_channels*sizeof(int32_t*));
LOG_I(RRH,"rx ch %d %p and tx ch %d %p\n",
dev->eth_dev.openair0_cfg.rx_num_channels,
rx_buffer_eNB,
dev->eth_dev.openair0_cfg.tx_num_channels,
tx_buffer_eNB);
/* rx_buffer_eNB points to the beginning of data */
for (i=0; i<dev->eth_dev.openair0_cfg.rx_num_channels; i++) {
tmp=(void *)malloc(sizeof(int32_t)*(samples_per_frame + HEADER_SIZE));
memset(tmp,0,sizeof(int32_t)*(samples_per_frame + HEADER_SIZE));
rx_buffer_eNB[i]=( tmp + (HEADER_SIZE*sizeof(int32_t)) );
LOG_I(RRH," rx ch %d %p |%p\n",i,rx_buffer_eNB[i],tmp);
}
/* tx_buffer_eNB points to the beginning of data */
for (i=0; i<dev->eth_dev.openair0_cfg.tx_num_channels; i++) {
tmp=(void *)malloc(sizeof(int32_t)*(samples_per_frame + HEADER_SIZE));
memset(tmp,0,sizeof(int32_t)*(samples_per_frame + HEADER_SIZE));
tx_buffer_eNB[i]=( tmp + (HEADER_SIZE*sizeof(int32_t)) );
LOG_I(RRH," tx ch %d %p| %p \n", i,tx_buffer_eNB[i],tmp);
}
/* dummy initialization for TX/RX buffers */
for (i=0; i<dev->eth_dev.openair0_cfg.rx_num_channels; i++) {
for (j=0; j<samples_per_frame; j++) {
rx_buffer_eNB[i][j]=32+i;
}
}
/* dummy initialization for TX/RX buffers */
for (i=0; i<dev->eth_dev.openair0_cfg.tx_num_channels; i++) {
for (j=0; j<samples_per_frame; j++) {
tx_buffer_eNB[i][j]=12+i;
}
}
/* allocate TX/RX buffers pointers used in write/read operations */
rx_eNB = (void**)malloc16(dev->eth_dev.openair0_cfg.rx_num_channels*sizeof(int32_t*));
tx_eNB = (void**)malloc16(dev->eth_dev.openair0_cfg.tx_num_channels*sizeof(int32_t*));
#ifdef LOWLATENCY
error_code_eNB_rx = pthread_create(&eNB_rx_thread, NULL, rrh_eNB_rx_thread, (void *)dev);
error_code_eNB_tx = pthread_create(&eNB_tx_thread, NULL, rrh_eNB_tx_thread, (void *)dev);
LOG_I(RRH,"[eNB][SCHED] deadline scheduling applied to eNB TX/RX threads\n");
#else
pthread_attr_t attr_eNB_rx, attr_eNB_tx;
struct sched_param sched_param_eNB_rx, sched_param_eNB_tx;
pthread_attr_init(&attr_eNB_rx);
pthread_attr_init(&attr_eNB_tx);
sched_param_eNB_rx.sched_priority = sched_get_priority_max(SCHED_FIFO);
sched_param_eNB_tx.sched_priority = sched_get_priority_max(SCHED_FIFO);
pthread_attr_setschedparam(&attr_eNB_rx,&sched_param_eNB_rx);
pthread_attr_setschedparam(&attr_eNB_tx,&sched_param_eNB_tx);
pthread_attr_setschedpolicy(&attr_eNB_rx,SCHED_FIFO);
pthread_attr_setschedpolicy(&attr_eNB_tx,SCHED_FIFO);
error_code_eNB_rx = pthread_create(&eNB_rx_thread, &attr_eNB_rx, rrh_eNB_rx_thread, (void *)dev);
error_code_eNB_tx = pthread_create(&eNB_tx_thread, &attr_eNB_tx, rrh_eNB_tx_thread, (void *)dev);
LOG_I(RRH,"[eNB][SCHED] FIFO scheduling applied to eNB TX/RX threads\n");
#endif
if (error_code_eNB_rx) {
LOG_E(RRH,"[eNB] Error while creating eNB RX thread\n");
exit(-1);
}
if (error_code_eNB_tx) {
LOG_E(RRH,"[eNB] Error while creating eNB TX thread\n");
exit(-1);
}
while (rrh_exit==0)
sleep(1);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_TRX,0 );
} //while (eNB_exit==0)
rrh_eNB_thread_status = 0;
pthread_exit(&rrh_eNB_thread_status);
return(0);
}
/*! \fn void *rrh_eNB_rx_thread(void *arg)
* \brief this function
* \param[in]
* \param[out]
* \return
* \note
* @ingroup _oai
*/
void *rrh_eNB_rx_thread(void *arg){
/* measuremnt related vars */
struct timespec time0,time1,time2;
unsigned long long max_rx_time=0, min_rx_time=rt_period, total_rx_time=0, average_rx_time=rt_period, s_period=0, trial=0;
int trace_cnt=0;
struct timespec time_req_1us, time_rem_1us;
rrh_module_t *dev = (rrh_module_t *)arg;
ssize_t bytes_sent;
int i, spp ,pck_rx=0;
openair0_vtimestamp last_hw_counter=0; //volatile int64_t
unsigned int samples_per_frame=0;
uint8_t loopback=0,measurements=0;
//RTIME sleep_ns=1000;
time_req_1us.tv_sec = 0;
time_req_1us.tv_nsec =1000; //time_req_1us.tv_nsec = (int)rt_period/2;--->granularity issue
spp = dev->eth_dev.openair0_cfg.samples_per_packet;
samples_per_frame = dev->eth_dev.openair0_cfg.samples_per_frame;
loopback = dev->loopback;
measurements = dev->measurements;
next_rx_pos = spp;
#ifdef LOWLATENCY
struct sched_attr attr;
unsigned int flags = 0;
attr.size = sizeof(attr);
attr.sched_flags = 0;
attr.sched_nice = 0;
attr.sched_priority = 0;
attr.sched_policy = SCHED_DEADLINE;
attr.sched_runtime = (0.1 * 100) * 10000; //
attr.sched_deadline = rt_period;// 0.1 * 1000000; //
attr.sched_period = rt_period; //0.1 * 1000000; // each TX/RX thread has
if (sched_setattr(0, &attr, flags) < 0 ) {
perror("[SCHED] eNB RX thread: sched_setattr failed (run with sudo)\n");
exit(-1);
}
#endif
while (rrh_exit == 0) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_RX, 1 );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_RX_HWCNT, hw_counter );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_RX_LHWCNT, last_hw_counter );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_RX_PCK, pck_rx );
for (i=0; i<dev->eth_dev.openair0_cfg.rx_num_channels; i++){
if (!eNB_rx_started) {
eNB_rx_started=1; // set this flag to 1 to indicate that eNB started
if (RT_flag_eNB==1) {
last_hw_counter=hw_counter;
}
} else {
if (RT_flag_eNB==1) {
if (hw_counter > last_hw_counter+1) {
printf("LR");
} else {
while (hw_counter < last_hw_counter+1){
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_RX_SLEEP, 1 );
nanosleep(&time_req_1us,&time_rem_1us);
//rt_sleep_ns(sleep_ns);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_RX_SLEEP, 0 );
}
}
}
}
if (measurements == 1 )
clock_gettime(CLOCK_MONOTONIC,&time1);
/* LOG_I(RRH,"send for%d at %d with %d |%d|%d| \n",i,rx_pos,timestamp_eNB_rx[i],((timestamp_eNB_rx[i]+spp)%samples_per_frame),next_rx_pos );
if ((timestamp_UE_tx[i]%samples_per_frame < next_rx_pos) && (UE_tx_started==1)) {
printf("eNB underflow\n");
if (NRT_flag_eNB==1) {
while ((timestamp_UE_tx[i]%samples_per_frame) < spp)
nanosleep(&time_req_1us,&time_rem_1us);
}
}
if (((rx_pos)< timestamp_UE_tx[i]%samples_per_frame) && (next_rx_pos > (timestamp_UE_tx[i]%samples_per_frame)) && (UE_tx_started==1)) {
printf("eNB underflow\n");
if (NRT_flag_eNB==1) {
while (next_rx_pos > (timestamp_UE_tx[i]%samples_per_frame))
nanosleep(&time_req_1us,&time_rem_1us);
}
}*/
if (loopback == 1 ) {
if (sync_eNB_rx[i]==0) {
rx_eNB[i] = (void*)&tx_buffer_eNB[i][tx_pos];
LOG_I(RRH,"tx_buffer_eNB[i][tx_pos]=%d ,tx_pos=%d\n",tx_buffer_eNB[i][tx_pos],tx_pos);
}
else{
rx_eNB[i] = (void*)&rx_buffer_eNB[i][rx_pos];
LOG_I(RRH,"rx_buffer_eNB[i][rx_pos]=%d ,rx_pos=%d\n",rx_buffer_eNB[i][rx_pos],rx_pos);
}
}
rx_eNB[i] = (void*)&rx_buffer_eNB[i][rx_pos];
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_RXCNT, rx_pos );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_RX_TS, timestamp_eNB_rx[i]&0xffffffff );
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 1 );
//LOG_D(RRH," rx_eNB[i]=%p rx_buffer_eNB[i][rx_pos]=%p ,rx_pos=%d, i=%d ts=%d\n",rx_eNB[i],&rx_buffer_eNB[i][rx_pos],rx_pos,i,timestamp_eNB_rx[i]);
if ((bytes_sent = dev->eth_dev.trx_write_func (&dev->eth_dev,
timestamp_eNB_rx[i],
rx_eNB,
spp,
i,
0))<0){
perror("RRH eNB : sendto for RX");
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 0 );
timestamp_eNB_rx[i]+=spp;
last_hw_counter=hw_counter;
if (measurements == 1 ) {
clock_gettime(CLOCK_MONOTONIC,&time2);
if (trace_cnt++ > 10) {
total_rx_time = (unsigned int)(time2.tv_nsec - time0.tv_nsec);
if (total_rx_time < 0)
total_rx_time=1000000000-total_rx_time;
if ((total_rx_time > 0) && (total_rx_time < 1000000000)) {
trial++;
if (total_rx_time < min_rx_time)
min_rx_time = total_rx_time;
if (total_rx_time > max_rx_time){
max_rx_time = total_rx_time;
LOG_I(RRH,"Max value %d update at rx_position %d \n",total_rx_time,timestamp_eNB_rx[i]);
}
average_rx_time = (long long unsigned int)((average_rx_time*trial)+total_rx_time)/(trial+1);
}
if (s_period++ == PRINTF_PERIOD) {
s_period=0;
LOG_I(RRH,"Average eNB RX time : %lu\tMax RX time : %lu\tMin RX time : %lu\n",average_rx_time,max_rx_time,min_rx_time);
}
}
memcpy(&time0,&time2,sizeof(struct timespec));
}
if (loopback == 1 ){
pthread_mutex_lock(&sync_eNB_mutex[i]);
sync_eNB_rx[i]--;
pthread_mutex_unlock(&sync_eNB_mutex[i]);
}
}//for each antenna
rx_pos += spp;
pck_rx++;
next_rx_pos=(rx_pos+spp);
if (next_rx_pos >= samples_per_frame)
next_rx_pos -= samples_per_frame;
if (rx_pos >= samples_per_frame)
rx_pos -= samples_per_frame;
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_RX, 0 );
} //while (eNB_exit==0)
return(0);
}
/*! \fn void *rrh_eNB_tx_thread(void *arg)
* \brief this function
* \param[in]
* \param[out]
* \return
* \note
* @ingroup _oai
*/
void *rrh_eNB_tx_thread(void *arg){
struct timespec time0a,time0,time1,time2;
rrh_module_t *dev = (rrh_module_t *)arg;
struct timespec time_req_1us, time_rem_1us;
ssize_t bytes_received;
int spp,i;
openair0_timestamp last_hw_counter=0;
unsigned int samples_per_frame=0;
uint8_t loopback=0,measurements=0;
#ifdef LOWLATENCY
struct sched_attr attr;
unsigned int flags = 0;
attr.size = sizeof(attr);
attr.sched_flags = 0;
attr.sched_nice = 0;
attr.sched_priority = 0;
attr.sched_policy = SCHED_DEADLINE;
attr.sched_runtime = (0.1 * 100) * 10000; //
attr.sched_deadline = rt_period;//0.1 * 1000000; //
attr.sched_period = rt_period;//0.1 * 1000000; // each TX/RX thread has
if (sched_setattr(0, &attr, flags) < 0 ) {
perror("[SCHED] eNB TX thread: sched_setattr failed\n");
exit(-1);
}
#endif
tx_pos=0;
time_req_1us.tv_sec = 0;
time_req_1us.tv_nsec = 1000;
spp = dev->eth_dev.openair0_cfg.samples_per_packet;
samples_per_frame = dev->eth_dev.openair0_cfg.samples_per_frame;
loopback = dev->loopback;
measurements = dev->measurements;
while (rrh_exit == 0) {
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_TX, 1 );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TX_HWCNT, hw_counter );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TX_LHWCNT, last_hw_counter );
if (measurements == 1 )
clock_gettime(CLOCK_MONOTONIC,&time0a);
for (i=0; i<dev->eth_dev.openair0_cfg.tx_num_channels; i++){
if (!eNB_tx_started) {
eNB_tx_started=1; // set this flag to 1 to indicate that eNB started
if (RT_flag_eNB==1) {
last_hw_counter=hw_counter;
}
} else {
if (RT_flag_eNB==1) {
if (hw_counter > last_hw_counter+1) {
printf("LT");
} else {
while (hw_counter < last_hw_counter+1){
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_TX_SLEEP, 1 );
nanosleep(&time_req_1us,&time_rem_1us);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_TX_SLEEP, 0 );
}
}
}
}
if (measurements == 1 )
clock_gettime(CLOCK_MONOTONIC,&time1);
tx_eNB[i] = (void*)&tx_buffer_eNB[i][tx_pos];
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TXCNT, tx_pos );
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ, 1 );
bytes_received = dev->eth_dev.trx_read_func(&dev->eth_dev,
&timestamp_eNB_tx[i],
tx_eNB,
spp,
i);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ, 0 );
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TX_TS, timestamp_eNB_tx[i]&0xffffffff );
if (NRT_flag_eNB==1) {
nrt_eNB_counter[i]++;
}
prev_tx_pos=tx_pos;
tx_pos += spp;
if (tx_pos >= samples_per_frame)
tx_pos -= samples_per_frame;
last_hw_counter=hw_counter;
if (loopback ==1 ) {
while (sync_eNB_rx[i]==0)
nanosleep(&time_req_1us,&time_rem_1us);
pthread_mutex_lock(&sync_eNB_mutex[i]);
sync_eNB_rx[i]++;
pthread_mutex_unlock(&sync_eNB_mutex[i]);
}
}
if (measurements == 1 ) {
clock_gettime(CLOCK_MONOTONIC,&time2);
memcpy(&time0,&time2,sizeof(struct timespec));
}
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_TX, 0 );
}
return(0);
}
//needs to be fixed
void set_rt_period( openair0_config_t openair0_cfg){
rt_period= (double)(openair0_cfg.samples_per_packet/(openair0_cfg.samples_per_frame/10.0)*1000000);
AssertFatal(rt_period > 0, "Invalid rt period !%u\n", rt_period);
//only in case of NRT with emulated UE
//create_timer_thread();
}
void check_dev_config( rrh_module_t *mod_enb) {
AssertFatal( (mod_enb->devs->openair0_cfg.num_rb_dl==100 || mod_enb->devs->openair0_cfg.num_rb_dl==50 || mod_enb->devs->openair0_cfg.num_rb_dl==25 || mod_enb->devs->openair0_cfg.num_rb_dl==6) , "Invalid number of resource blocks! %d\n", mod_enb->devs->openair0_cfg.num_rb_dl);
AssertFatal( mod_enb->devs->openair0_cfg.samples_per_frame > 0 , "Invalid number of samples per frame! %d\n",mod_enb->devs->openair0_cfg.samples_per_frame);
AssertFatal( mod_enb->devs->openair0_cfg.sample_rate > 0.0, "Invalid sample rate! %f\n", mod_enb->devs->openair0_cfg.sample_rate);
AssertFatal( mod_enb->devs->openair0_cfg.samples_per_packet > 0 , "Invalid number of samples per packet! %d\n",mod_enb->devs->openair0_cfg.samples_per_packet);
AssertFatal( mod_enb->devs->openair0_cfg.rx_num_channels > 0 , "Invalid number of RX antennas! %d\n", mod_enb->devs->openair0_cfg.rx_num_channels);
AssertFatal( mod_enb->devs->openair0_cfg.tx_num_channels > 0 , "Invalid number of TX antennas! %d\n", mod_enb->devs->openair0_cfg.tx_num_channels);
AssertFatal( mod_enb->devs->openair0_cfg.rx_freq[0] > 0.0 ,"Invalid RX frequency! %f\n", mod_enb->devs->openair0_cfg.rx_freq[0]);
AssertFatal( mod_enb->devs->openair0_cfg.tx_freq[0] > 0.0 ,"Invalid TX frequency! %f\n", mod_enb->devs->openair0_cfg.tx_freq[0]);
AssertFatal( mod_enb->devs->openair0_cfg.rx_gain[0] > 0.0 ,"Invalid RX gain! %f\n", mod_enb->devs->openair0_cfg.rx_gain[0]);
AssertFatal( mod_enb->devs->openair0_cfg.tx_gain[0] > 0.0 ,"Invalid TX gain! %f\n", mod_enb->devs->openair0_cfg.tx_gain[0]);
AssertFatal( mod_enb->devs->openair0_cfg.rx_bw > 0.0 ,"Invalid RX bw! %f\n", mod_enb->devs->openair0_cfg.rx_bw);
AssertFatal( mod_enb->devs->openair0_cfg.tx_bw > 0.0 ,"Invalid RX bw! %f\n", mod_enb->devs->openair0_cfg.tx_bw);
// AssertFatal( mod_enb->devs->openair0_cfg.autocal[0] > 0 , "Invalid auto calibration choice! %d\n", mod_enb->devs->openair0_cfg.autocal[0]);
printf("\n---------------------RF device configuration parameters---------------------\n");
printf("\tMod_id=%d\n \tlog level=%d\n \tDL_RB=%d\n \tsamples_per_frame=%d\n \tsample_rate=%f\n \tsamples_per_packet=%d\n \ttx_delay=%d\n \ttx_forward_nsamps=%d\n \trx_num_channels=%d\n \ttx_num_channels=%d\n \trx_freq_0=%f\n \ttx_freq_0=%f\n \trx_freq_1=%f\n \ttx_freq_1=%f\n \trx_freq_2=%f\n \ttx_freq_2=%f\n \trx_freq_3=%f\n \ttx_freq_3=%f\n \trxg_mode=%d\n \trx_gain_0=%f\n \ttx_gain_0=%f\n \trx_gain_1=%f\n \ttx_gain_1=%f\n \trx_gain_2=%f\n \ttx_gain_2=%f\n \trx_gain_3=%f\n \ttx_gain_3=%f\n \trx_gain_offset_2=%f\n \ttx_gain_offset_3=%f\n \trx_bw=%f\n \ttx_bw=%f\n \tautocal=%d\n \trem_addr %s:%d\n \tmy_addr %s:%d\n",
mod_enb->devs->openair0_cfg.Mod_id,
mod_enb->devs->openair0_cfg.log_level,
mod_enb->devs->openair0_cfg.num_rb_dl,
mod_enb->devs->openair0_cfg.samples_per_frame,
mod_enb->devs->openair0_cfg.sample_rate,
mod_enb->devs->openair0_cfg.samples_per_packet,
mod_enb->devs->openair0_cfg.tx_delay,
mod_enb->devs->openair0_cfg.tx_forward_nsamps,
mod_enb->devs->openair0_cfg.rx_num_channels,
mod_enb->devs->openair0_cfg.tx_num_channels,
mod_enb->devs->openair0_cfg.rx_freq[0],
mod_enb->devs->openair0_cfg.tx_freq[0],
mod_enb->devs->openair0_cfg.rx_freq[1],
mod_enb->devs->openair0_cfg.tx_freq[1],
mod_enb->devs->openair0_cfg.rx_freq[2],
mod_enb->devs->openair0_cfg.tx_freq[2],
mod_enb->devs->openair0_cfg.rx_freq[3],
mod_enb->devs->openair0_cfg.tx_freq[3],
mod_enb->devs->openair0_cfg.rxg_mode[0],
mod_enb->devs->openair0_cfg.rx_gain[0],
mod_enb->devs->openair0_cfg.tx_gain[0],
mod_enb->devs->openair0_cfg.rx_gain[1],
mod_enb->devs->openair0_cfg.tx_gain[1],
mod_enb->devs->openair0_cfg.rx_gain[2],
mod_enb->devs->openair0_cfg.tx_gain[2],
mod_enb->devs->openair0_cfg.rx_gain[3],
mod_enb->devs->openair0_cfg.tx_gain[3],
//mod_enb->devs->openair0_cfg.rx_gain_offset[0],
//mod_enb->devs->openair0_cfg.rx_gain_offset[1],
mod_enb->devs->openair0_cfg.rx_gain_offset[2],
mod_enb->devs->openair0_cfg.rx_gain_offset[3],
mod_enb->devs->openair0_cfg.rx_bw,
mod_enb->devs->openair0_cfg.tx_bw,
mod_enb->devs->openair0_cfg.autocal[0],
mod_enb->devs->openair0_cfg.remote_ip,
mod_enb->devs->openair0_cfg.remote_port,
mod_enb->devs->openair0_cfg.my_ip,
mod_enb->devs->openair0_cfg.my_port
);
printf("----------------------------------------------------------------------------\n");
}
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