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if5 modifications. Use of asynchronous RX thread for RCC->RRU IF5 link

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This commit is contained in:
Raymond Knopp
2016-07-31 19:33:39 +02:00
parent 5817a62c37
commit ec209bd43e
3 changed files with 104 additions and 58 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair1/PHY/LTE_TRANSPORT/if5_tools.c
+5 -5
View File
@@ -66,7 +66,7 @@ void send_IF5(PHY_VARS_eNB *eNB, openair0_timestamp proc_timestamp, int subframe
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE_IF, 1 );
eNB->ifdevice.trx_write_func(&eNB->ifdevice,
(proc_timestamp + packet_id*spp_eth),
txp,
(void**)txp,
spp_eth,
fp->nb_antennas_tx,
0);
@@ -86,7 +86,7 @@ void send_IF5(PHY_VARS_eNB *eNB, openair0_timestamp proc_timestamp, int subframe
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE_IF, 1 );
eNB->ifdevice.trx_write_func(&eNB->ifdevice,
(proc_timestamp + packet_id*spp_eth),
rxp,
(void**)rxp,
spp_eth,
fp->nb_antennas_rx,
0);
@@ -131,7 +131,7 @@ void send_IF5(PHY_VARS_eNB *eNB, openair0_timestamp proc_timestamp, int subframe
// Write the packet to the fronthaul
if ((eNB->ifdevice.trx_write_func(&eNB->ifdevice,
packet_id,
&tx_buffer,
(void**)&tx_buffer,
db_fulllength,
1,
IF5_MOBIPASS)) < 0) {
@@ -177,7 +177,7 @@ void recv_IF5(PHY_VARS_eNB *eNB, openair0_timestamp *proc_timestamp, int subfram
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ_IF, 1 );
eNB->ifdevice.trx_read_func(&eNB->ifdevice,
&timestamp[packet_id],
txp,
(void**)txp,
spp_eth,
fp->nb_antennas_tx);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ_IF, 0 );
@@ -197,7 +197,7 @@ void recv_IF5(PHY_VARS_eNB *eNB, openair0_timestamp *proc_timestamp, int subfram
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ_IF, 1 );
eNB->ifdevice.trx_read_func(&eNB->ifdevice,
&timestamp[packet_id],
rxp,
(void**)rxp,
spp_eth,
fp->nb_antennas_rx);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ_IF, 0 );
openair1/PHY/defs.h
+12 -6
View File
@@ -252,10 +252,12 @@ typedef struct eNB_proc_t_s {
/// \brief Instance count for rx processing thread.
/// \internal This variable is protected by \ref mutex_prach.
int instance_cnt_prach;
/// \internal This variable is protected by \ref mutex_asynch_rxtx.
int instance_cnt_asynch_rxtx;
/// pthread structure for FH processing thread
pthread_t pthread_FH;
/// pthread structure for asychronous RX processing thread
pthread_t pthread_asynch_rx;
/// pthread structure for asychronous RX/TX processing thread
pthread_t pthread_asynch_rxtx;
/// flag to indicate first RX acquisition
int first_rx;
/// pthread attributes for FH processing thread
@@ -263,23 +265,27 @@ typedef struct eNB_proc_t_s {
/// pthread attributes for prach processing thread
pthread_attr_t attr_prach;
/// pthread attributes for asynchronous RX thread
pthread_attr_t attr_asynch_rx;
pthread_attr_t attr_asynch_rxtx;
/// scheduling parameters for FH thread
struct sched_param sched_param_FH;
/// scheduling parameters for prach thread
struct sched_param sched_param_prach;
/// scheduling parameters for asynch_rx thread
struct sched_param sched_param_asynch_rx;
/// condition variable for FH thread
/// scheduling parameters for asynch_rxtx thread
struct sched_param sched_param_asynch_rxtx;
/// pthread structure for PRACH thread
pthread_t pthread_prach;
/// condition variable for FH thread
pthread_cond_t cond_FH;
/// condition variable for PRACH processing thread;
pthread_cond_t cond_prach;
/// condition variable for asynch RX/TX thread
pthread_cond_t cond_asynch_rxtx;
/// mutex for FH
pthread_mutex_t mutex_FH;
/// mutex for PRACH thread
pthread_mutex_t mutex_prach;
/// mutex for asynch RX/TX thread
pthread_mutex_t mutex_asynch_rxtx;
/// set of scheduling variables RXn-TXnp4 threads
eNB_rxtx_proc_t proc_rxtx[2];
/// number of slave threads
targets/RT/USER/lte-enb.c
+87 -47
View File
@@ -641,21 +641,22 @@ static void wait_system_ready (char *message, volatile int *start_flag) {
#endif
/*!
* \brief The Asynchronous RX FH thread of RAU/RCC/eNB.
* \brief The Asynchronous RX/TX FH thread of RAU/RCC/eNB/RRU.
* This handles the RX FH for an asynchronous RRU/UE
* \param param is a \ref eNB_proc_t structure which contains the info what to process.
* \returns a pointer to an int. The storage is not on the heap and must not be freed.
*/
static void* eNB_thread_asynch_rx( void* param ) {
static void* eNB_thread_asynch_rxtx( void* param ) {
static int eNB_thread_asynch_rx_status;
static int eNB_thread_asynch_rxtx_status;
eNB_proc_t *proc = (eNB_proc_t*)param;
PHY_VARS_eNB *eNB = PHY_vars_eNB_g[0][proc->CC_id];
LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms;
openair0_timestamp timestamp_rx;
int frame_rx,subframe_rx;
openair0_timestamp timestamp_rx,timestamp_tx;
int frame_rx,subframe_rx=0,subframe_tx=0;
static int first_rx = 1;
static int first_tx = 1;
uint16_t packet_type;
uint32_t symbol_number=0;
uint32_t symbol_mask, symbol_mask_full;
@@ -768,40 +769,67 @@ static void* eNB_thread_asynch_rx( void* param ) {
printf( "got sync (eNB_thread_asynch_rx)\n" );
if (eNB->node_function == eNodeB_3GPP) { // acquisition from RF
if (eNB->rfdevice.trx_read_func)
rxs = eNB->rfdevice.trx_read_func(&eNB->rfdevice,
&proc->timestamp_rx,
(void**)dummy_rx,
fp->samples_per_tti,
fp->nb_antennas_rx);
else {
printf("eNB asynch RX\n");
sleep(1);
// wait for top-level synchronization and do one acquisition to get timestamp for setting frame/subframe
printf( "waiting for devices (eNB_thread_asynch_rx)\n");
pthread_mutex_lock( &proc->mutex_asynch_rxtx);
while (proc->instance_cnt_asynch_rxtx<0)
pthread_cond_wait( &proc->cond_asynch_rxtx, &proc->mutex_asynch_rxtx );
pthread_mutex_unlock(&proc->mutex_asynch_rxtx);
printf( "devices ok (eNB_thread_asynch_rx)\n");
while (!oai_exit) {
if (eNB->node_function == eNodeB_3GPP) { // acquisition from RF
if (eNB->rfdevice.trx_read_func)
rxs = eNB->rfdevice.trx_read_func(&eNB->rfdevice,
&proc->timestamp_rx,
(void**)dummy_rx,
fp->samples_per_tti,
fp->nb_antennas_rx);
else {
printf("eNB asynch RX\n");
sleep(1);
}
if (rxs!=fp->samples_per_tti) {
exit_fun("error receiving samples\n");
}
}
if (rxs!=fp->samples_per_tti) {
exit_fun("error receiving samples\n");
}
}
else if (eNB->node_function == eNodeB_3GPP_BBU) { // acquisition from IF
else if (eNB->node_function == eNodeB_3GPP_BBU) { // acquisition from IF
/// **** recv_IF5 of rxdata from RRH **** ///
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_RECV_IF5, 1 );
recv_IF5(eNB, &timestamp_rx, subframe_rx++, IF5_RRH_GW_UL);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_RECV_IF5, 0 );
if (first_rx == 1) {
first_rx = 0;
subframe_rx = (timestamp_rx/fp->samples_per_tti)%10;
}
else {
// check timestamp
if ((timestamp_rx - proc->timestamp_rx) < (2*fp->samples_per_tti))
printf("RX overflow ...\n");
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_RECV_IF5, 1 );
recv_IF5(eNB, &timestamp_rx, subframe_rx++, IF5_RRH_GW_UL);
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_RECV_IF5, 0 );
if (first_rx == 1) {
first_rx = 0;
subframe_rx = (timestamp_rx/fp->samples_per_tti)%10;
}
else {
// check timestamp
if ((timestamp_rx - proc->timestamp_rx) < (2*fp->samples_per_tti))
printf("RX overflow ...\n");
}
} // eNodeB_3GPP_BBU
else if (eNB->node_function == NGFI_RRU_IF5) {
/// **** recv_IF5 of rxdata from RRH **** ///
subframe_tx = (subframe_tx+1)%10;
recv_IF5(eNB, &timestamp_tx, subframe_tx, IF5_RRH_GW_DL);
printf("Received subframe %d (TS %llu) from RCC\n",subframe_tx,timestamp_tx);
if (first_tx == 1) {
first_tx = 0;
subframe_tx = (timestamp_tx/fp->samples_per_tti)%10;
}
}
} // eNodeB_3GPP_BBU
else if (eNB->node_function == NGFI_RCC_IF4p5) {
else if (eNB->node_function == NGFI_RCC_IF4p5) {
/// **** recv_IF4p5 of rxdataF from RRU **** ///
/// **** recv_IF4p5 of rxsigF from RRU **** ///
// get frame/subframe information from IF4p5 interface
@@ -811,10 +839,10 @@ static void* eNB_thread_asynch_rx( void* param ) {
symbol_mask = 0;
symbol_mask_full = (1<<fp->symbols_per_tti)-1;
prach_rx = 0;
do { // Blocking, we need a timeout on this !!!!!!!!!!!!!!!!!!!!!!!
recv_IF4p5(eNB, &frame_rx, &subframe_rx, &packet_type, &symbol_number);
if (packet_type == IF4p5_PULFFT) {
symbol_mask = symbol_mask | (1<<symbol_number);
prach_rx = (is_prach_subframe(fp, proc->frame_rx, proc->subframe_rx)>0) ? 1 : 0;
@@ -834,9 +862,9 @@ static void* eNB_thread_asynch_rx( void* param ) {
else { // should not get here
AssertFatal(1==0, "Unknown eNB->node_function %d",eNB->node_function);
}
eNB_thread_asynch_rx_status=0;
return(&eNB_thread_asynch_rx_status);
}
eNB_thread_asynch_rxtx_status=0;
return(&eNB_thread_asynch_rxtx_status);
}
void rx_rf(PHY_VARS_eNB *eNB,eNB_proc_t *proc,int *frame,int *subframe) {
@@ -848,16 +876,17 @@ void rx_rf(PHY_VARS_eNB *eNB,eNB_proc_t *proc,int *frame,int *subframe) {
if (proc->first_rx==0) {
// Transmit TX buffer based on timestamp from RX
// Transmit TX buffer based on timestamp from RX
printf("trx_write -> USRP TS %llu (sf %d)\n", (proc->timestamp_rx+(3*fp->samples_per_tti)),(proc->subframe_rx+2)%10);
VCD_SIGNAL_DUMPER_DUMP_VARIABLE_BY_NAME( VCD_SIGNAL_DUMPER_VARIABLES_TRX_TST, (proc->timestamp_rx+(3*fp->samples_per_tti)-openair0_cfg[0].tx_sample_advance)&0xffffffff );
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_WRITE, 1 );
// prepare tx buffer pointers
for (i=0; i<fp->nb_antennas_tx; i++)
txp[i] = (void*)&eNB->common_vars.txdata[0][i][((proc->subframe_rx+3)%10)*fp->samples_per_tti];
txp[i] = (void*)&eNB->common_vars.txdata[0][i][((proc->subframe_rx+2)%10)*fp->samples_per_tti];
txs = eNB->rfdevice.trx_write_func(&eNB->rfdevice,
proc->timestamp_rx+(3*fp->samples_per_tti)-openair0_cfg[0].tx_sample_advance,
proc->timestamp_rx+(2*fp->samples_per_tti)-openair0_cfg[0].tx_sample_advance,
txp,
fp->samples_per_tti,
fp->nb_antennas_tx,
@@ -877,7 +906,7 @@ void rx_rf(PHY_VARS_eNB *eNB,eNB_proc_t *proc,int *frame,int *subframe) {
rxp[i] = (void*)&eNB->common_vars.rxdata[0][i][*subframe*fp->samples_per_tti];
VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_TRX_READ, 1 );
rxs = eNB->rfdevice.trx_read_func(&eNB->rfdevice,
&(proc->timestamp_rx),
rxp,
@@ -888,6 +917,7 @@ void rx_rf(PHY_VARS_eNB *eNB,eNB_proc_t *proc,int *frame,int *subframe) {
proc->frame_rx = (proc->timestamp_rx / (fp->samples_per_tti*10))&1023;
proc->subframe_rx = (proc->timestamp_rx / fp->samples_per_tti)%10;
printf("trx_read <- USRP TS %llu (sf %d, first_rx %d)\n", proc->timestamp_rx,proc->subframe_rx,proc->first_rx);
if (proc->first_rx == 0) {
if (proc->subframe_rx != *subframe){
@@ -1232,6 +1262,12 @@ static void* eNB_thread_FH( void* param ) {
if (eNB->start_rf(eNB) != 0)
LOG_E(HW,"Could not start the RF device\n");
// unlock asnych_rxtx thread
pthread_mutex_lock(&proc->mutex_asynch_rxtx);
proc->instance_cnt_asynch_rxtx=0;
pthread_mutex_unlock(&proc->mutex_asynch_rxtx);
pthread_cond_signal(&proc->cond_asynch_rxtx);
// This is a forever while loop, it loops over subframes which are scheduled by incoming samples from HW devices
while (!oai_exit) {
@@ -1527,6 +1563,7 @@ void init_eNB_proc(int inst) {
proc_rxtx[1].instance_cnt_rxtx = -1;
proc->instance_cnt_prach = -1;
proc->instance_cnt_FH = -1;
proc->instance_cnt_asynch_rxtx = -1;
proc->CC_id = CC_id;
proc->first_rx=4;
@@ -1534,24 +1571,27 @@ void init_eNB_proc(int inst) {
pthread_mutex_init( &proc_rxtx[0].mutex_rxtx, NULL);
pthread_mutex_init( &proc_rxtx[1].mutex_rxtx, NULL);
pthread_mutex_init( &proc->mutex_prach, NULL);
pthread_mutex_init( &proc->mutex_asynch_rxtx, NULL);
pthread_cond_init( &proc_rxtx[0].cond_rxtx, NULL);
pthread_cond_init( &proc_rxtx[1].cond_rxtx, NULL);
pthread_cond_init( &proc->cond_prach, NULL);
pthread_cond_init( &proc->cond_FH, NULL);
pthread_cond_init( &proc->cond_asynch_rxtx, NULL);
#ifndef DEADLINE_SCHEDULER
pthread_create( &proc_rxtx[0].pthread_rxtx, &proc_rxtx[0].attr_rxtx, eNB_thread_rxtx, &proc_rxtx[0] );
pthread_create( &proc_rxtx[1].pthread_rxtx, &proc_rxtx[1].attr_rxtx, eNB_thread_rxtx, &proc_rxtx[1] );
pthread_create( &proc->pthread_FH, &proc->attr_FH, eNB_thread_FH, &eNB->proc );
pthread_create( &proc->pthread_prach, &proc->attr_prach, eNB_thread_prach, &eNB->proc );
if (eNB->node_timing == synch_to_other)
pthread_create( &proc->pthread_asynch_rx, &proc->attr_asynch_rx, eNB_thread_asynch_rx, &eNB->proc );
if ((eNB->node_timing == synch_to_other) ||
(eNB->node_function == NGFI_RRU_IF5))
pthread_create( &proc->pthread_asynch_rxtx, &proc->attr_asynch_rxtx, eNB_thread_asynch_rxtx, &eNB->proc );
#else
pthread_create( &proc_rxtx[0].pthread_rxtx, NULL, eNB_thread_rxtx, &eNB->proc_rxtx[0] );
pthread_create( &proc_rxtx[1].pthread_rxtx, NULL, eNB_thread_rxtx, &eNB->proc_rxtx[1] );
pthread_create( &proc->pthread_FH, NULL, eNB_thread_FH, &eNB->proc );
pthread_create( &proc->pthread_prach, NULL, eNB_thread_prach, &eNB->proc );
if (eNB->node_timing == synch_to_other)
pthread_create( &proc->pthread_asynch_rx, NULL, eNB_thread_asynch_rx, &eNB->proc );
pthread_create( &proc->pthread_asynch_rxtx, NULL, eNB_thread_asynch_rxtx, &eNB->proc );
#endif
char name[16];
@@ -1767,7 +1807,7 @@ void init_eNB(eNB_func_t node_function[], eNB_timing_t node_timing[],int nb_inst
eNB->do_prach = NULL;
eNB->fep = eNB_fep_rru_if5;
eNB->proc_uespec_rx = NULL;
eNB->proc_tx = proc_tx_rru_if5;
eNB->proc_tx = NULL;
eNB->tx_fh = NULL;
eNB->rx_fh = rx_rf;
eNB->start_rf = start_rf;