/* * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The OpenAirInterface Software Alliance licenses this file to You under * the OAI Public License, Version 1.0 (the "License"); you may not use this file * except in compliance with the License. * You may obtain a copy of the License at * * http://www.openairinterface.org/?page_id=698 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *------------------------------------------------------------------------------- * For more information about the OpenAirInterface (OAI) Software Alliance: * contact@openairinterface.org */ /*! \file lte-enb.c * \brief Top-level threads for eNodeB * \author R. Knopp, F. Kaltenberger, Navid Nikaein * \date 2012 * \version 0.1 * \company Eurecom * \email: knopp@eurecom.fr,florian.kaltenberger@eurecom.fr, navid.nikaein@eurecom.fr * \note * \warning */ #define _GNU_SOURCE #include <pthread.h> #include "time_utils.h" #undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all #include "rt_wrapper.h" #include "assertions.h" #include "PHY/types.h" #include "PHY/defs.h" #undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all //#undef FRAME_LENGTH_COMPLEX_SAMPLES //there are two conflicting definitions, so we better make sure we don't use it at all #include "../../ARCH/COMMON/common_lib.h" //#undef FRAME_LENGTH_COMPLEX_SAMPLES //there are two conflicting definitions, so we better make sure we don't use it at all #include "PHY/LTE_TRANSPORT/if4_tools.h" #include "PHY/LTE_TRANSPORT/if5_tools.h" #include "PHY/extern.h" #include "SCHED/extern.h" #include "LAYER2/MAC/extern.h" #include "../../SIMU/USER/init_lte.h" #include "LAYER2/MAC/defs.h" #include "LAYER2/MAC/extern.h" #include "LAYER2/MAC/proto.h" #include "RRC/LITE/extern.h" #include "PHY_INTERFACE/extern.h" #include "PHY_INTERFACE/defs.h" #ifdef SMBV #include "PHY/TOOLS/smbv.h" unsigned short config_frames[4] = {2,9,11,13}; #endif #include "UTIL/LOG/log_extern.h" #include "UTIL/OTG/otg_tx.h" #include "UTIL/OTG/otg_externs.h" #include "UTIL/MATH/oml.h" #include "UTIL/LOG/vcd_signal_dumper.h" #include "UTIL/OPT/opt.h" #include "enb_config.h" //#include "PHY/TOOLS/time_meas.h" #ifndef OPENAIR2 #include "UTIL/OTG/otg_extern.h" #endif #if defined(ENABLE_ITTI) # if defined(ENABLE_USE_MME) # include "s1ap_eNB.h" #ifdef PDCP_USE_NETLINK # include "SIMULATION/ETH_TRANSPORT/proto.h" #endif # endif #endif #include "T.h" //#define DEBUG_THREADS 1 //#define USRP_DEBUG 1 struct timing_info_t { //unsigned int frame, hw_slot, last_slot, next_slot; RTIME time_min, time_max, time_avg, time_last, time_now; //unsigned int mbox0, mbox1, mbox2, mbox_target; unsigned int n_samples; } timing_info; // Fix per CC openair rf/if device update // extern openair0_device openair0; #if defined(ENABLE_ITTI) extern volatile int start_eNB; extern volatile int start_UE; #endif extern volatile int oai_exit; extern openair0_config_t openair0_cfg[MAX_CARDS]; extern int transmission_mode; extern int oaisim_flag; //pthread_t main_eNB_thread; time_stats_t softmodem_stats_mt; // main thread time_stats_t softmodem_stats_hw; // hw acquisition time_stats_t softmodem_stats_rxtx_sf; // total tx time time_stats_t softmodem_stats_rx_sf; // total rx time /* mutex, cond and variable to serialize phy proc TX calls * (this mechanism may be relaxed in the future for better * performances) */ static struct { pthread_mutex_t mutex_phy_proc_tx; pthread_cond_t cond_phy_proc_tx; volatile uint8_t phy_proc_CC_id; } sync_phy_proc; extern double cpuf; void exit_fun(const char* s); void init_eNB(int,int); void stop_eNB(int nb_inst); void wakeup_prach_eNB(PHY_VARS_eNB *eNB,RU_t *ru,int frame,int subframe); #ifdef Rel14 void wakeup_prach_eNB_br(PHY_VARS_eNB *eNB,RU_t *ru,int frame,int subframe); #endif extern void oai_subframe_ind(eNB_rxtx_proc_t *proc); extern uint8_t nfapi_mode; static inline int rxtx(PHY_VARS_eNB *eNB,eNB_rxtx_proc_t *proc, char *thread_name) { start_meas(&softmodem_stats_rxtx_sf); // ******************************************************************* // **************************************** // Common RX procedures subframe n T(T_ENB_PHY_DL_TICK, T_INT(eNB->Mod_id), T_INT(proc->frame_tx), T_INT(proc->subframe_tx)); // if this is IF5 or 3GPP_eNB if (eNB && eNB->RU_list && eNB->RU_list[0] && eNB->RU_list[0]->function < NGFI_RAU_IF4p5) { //LOG_D(PHY,"%s:%s() %u/%u Before wakeup_prach_eNB() proc->instance_cnt_rxtx:%d\n", thread_name, __FUNCTION__, proc->frame_tx, proc->subframe_tx, proc->instance_cnt_rxtx); wakeup_prach_eNB(eNB,NULL,proc->frame_rx,proc->subframe_rx); //LOG_D(PHY,"%s:%s() %u/%u Before wakeup_prach_eNB_br() proc->instance_cnt_rxtx:%d\n", thread_name, __FUNCTION__, proc->frame_tx, proc->subframe_tx, proc->instance_cnt_rxtx); #ifdef Rel14 wakeup_prach_eNB_br(eNB,NULL,proc->frame_rx,proc->subframe_rx); //LOG_D(PHY,"%s:%s() %u/%u proc->instance_cnt_rxtx:%d\n", thread_name, __FUNCTION__, proc->frame_tx, proc->subframe_tx, proc->instance_cnt_rxtx); #endif } LOG_D(PHY, "SFN/SF proc:%d/%d rx_ind:%d/%d [num_pdus:%d]\n", NFAPI_SFNSF2SFN(eNB->UL_INFO.rx_ind.sfn_sf), NFAPI_SFNSF2SF(eNB->UL_INFO.rx_ind.sfn_sf), proc->frame_rx, proc->subframe_rx, eNB->UL_INFO.rx_ind.rx_indication_body.number_of_pdus); if (eNB->UL_INFO.rx_ind.sfn_sf == (proc->frame_rx<<4|proc->subframe_rx) && eNB->UL_INFO.rx_ind.rx_indication_body.number_of_pdus>0) { // Fix me here, these should be locked for (int i=0; i<eNB->UL_INFO.rx_ind.rx_indication_body.number_of_pdus; i++) { LOG_E(PHY, "SFN/SF:%d/%d eNB->UL_INFO.rx_ind.number_of_pdus:%d Resetting!\n", proc->frame_rx, proc->subframe_rx, eNB->UL_INFO.rx_ind.rx_indication_body.number_of_pdus); LOG_E(PHY, "NOT ZERO ING RX INDs\n\n\n\n\n\n\n"); //eNB->UL_INFO.rx_ind[proc->subframe_rx&1].number_of_pdus = 0; } } if (eNB->UL_INFO.crc_ind.sfn_sf == (proc->frame_rx<<4|proc->subframe_rx)) { for (int i=0; i<eNB->UL_INFO.crc_ind.crc_indication_body.number_of_crcs; i++) { LOG_E(PHY, "SFN/SF:%d/%d eNB->UL_INFO.crc_ind.number_of_crcs:%d Resetting!\n", proc->frame_rx, proc->subframe_rx, eNB->UL_INFO.crc_ind.crc_indication_body.number_of_crcs); LOG_E(PHY, "NOT ZERO ING CRCs\n\n\n\n\n\n\n"); //eNB->UL_INFO.crc_ind.number_of_crcs = 0; } } if (nfapi_mode) { oai_subframe_ind(proc); // PNF ---> P7:subframe_ind --> VNF //LOG_E(PHY, "Returned from oai_subframe_ind()\n"); LOG_D(PHY, "UL_info[rx_ind:%d number_of_harqs:%d number_of_crcs:%d number_of_cqis:%d number_of_preambles:%d]\n", eNB->UL_INFO.rx_ind.rx_indication_body.number_of_pdus, eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs, eNB->UL_INFO.crc_ind.crc_indication_body.number_of_crcs, eNB->UL_INFO.cqi_ind.number_of_cqis, eNB->UL_INFO.rach_ind.number_of_preambles); } // UE-specific RX processing for subframe n phy_procedures_eNB_uespec_RX(eNB, proc, no_relay ); pthread_mutex_lock(&eNB->UL_INFO_mutex); eNB->UL_INFO.frame = proc->frame_rx; eNB->UL_INFO.subframe = proc->subframe_rx; eNB->UL_INFO.module_id = eNB->Mod_id; eNB->UL_INFO.CC_id = eNB->CC_id; eNB->if_inst->UL_indication(&eNB->UL_INFO); pthread_mutex_unlock(&eNB->UL_INFO_mutex); // ***************************************** // TX processing for subframe n+4 // run PHY TX procedures the one after the other for all CCs to avoid race conditions // (may be relaxed in the future for performance reasons) // ***************************************** //if (wait_CCs(proc)<0) return(-1); if (oai_exit) return(-1); phy_procedures_eNB_TX(eNB, proc, no_relay, NULL, 1); stop_meas( &softmodem_stats_rxtx_sf ); return(0); } /*! * \brief The RX UE-specific and TX thread of eNB. * \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_rxtx( void* param ) { static int eNB_thread_rxtx_status; eNB_rxtx_proc_t *proc = (eNB_rxtx_proc_t*)param; PHY_VARS_eNB *eNB = RC.eNB[0][proc->CC_id]; char thread_name[100]; //LOG_D(PHY,"%s()\n", __FUNCTION__); // set default return value eNB_thread_rxtx_status = 0; sprintf(thread_name,"RXn_TXnp4_%d",&eNB->proc.proc_rxtx[0] == proc ? 0 : 1); thread_top_init(thread_name,1,850000L,1000000L,2000000L); //LOG_D(PHY,"%s() thread_name:%s\n", __FUNCTION__, thread_name); while (!oai_exit) { VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_RXTX0+(proc->subframe_rx&1), 0 ); LOG_D(PHY,"%s:%s() %u/%u About to wait on proc->instance_cnt_rxtx:%d\n", thread_name, __FUNCTION__, proc->frame_tx, proc->subframe_tx, proc->instance_cnt_rxtx); if (wait_on_condition(&proc->mutex_rxtx,&proc->cond_rxtx,&proc->instance_cnt_rxtx,thread_name)<0) break; LOG_D(PHY,"%s:%s() %u/%u - WOKEN on proc->instance_cnt_rxtx proc->instance_cnt_rxtx:%d \n", thread_name, __FUNCTION__, proc->frame_tx, proc->subframe_tx, proc->instance_cnt_rxtx); VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_RXTX0+(proc->subframe_rx&1), 1 ); if (oai_exit) break; LOG_D(PHY,"%s:%s() %u/%u About to rxtx()\n", thread_name, __FUNCTION__, proc->frame_tx, proc->subframe_tx); if (eNB->CC_id==0) if (rxtx(eNB,proc,thread_name) < 0) break; LOG_D(PHY,"%s:%s() %u/%u DONE rxtx()\n", thread_name, __FUNCTION__, proc->frame_tx, proc->subframe_tx); if (release_thread(&proc->mutex_rxtx,&proc->instance_cnt_rxtx,thread_name)<0) break; } // while !oai_exit VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME( VCD_SIGNAL_DUMPER_FUNCTIONS_eNB_PROC_RXTX0+(proc->subframe_rx&1), 0 ); printf( "Exiting eNB thread RXn_TXnp4\n"); eNB_thread_rxtx_status = 0; return &eNB_thread_rxtx_status; } #if 0 //defined(ENABLE_ITTI) && defined(ENABLE_USE_MME) // Wait for eNB application initialization to be complete (eNB registration to MME) static void wait_system_ready (char *message, volatile int *start_flag) { static char *indicator[] = {". ", ".. ", "... ", ".... ", ".....", " ....", " ...", " ..", " .", " "}; int i = 0; while ((!oai_exit) && (*start_flag == 0)) { LOG_N(EMU, message, indicator[i]); fflush(stdout); i = (i + 1) % (sizeof(indicator) / sizeof(indicator[0])); usleep(200000); } LOG_D(EMU,"\n"); } #endif void eNB_top(PHY_VARS_eNB *eNB, int frame_rx, int subframe_rx, char *string) { eNB_proc_t *proc = &eNB->proc; eNB_rxtx_proc_t *proc_rxtx = &proc->proc_rxtx[0]; proc->frame_rx = frame_rx; proc->subframe_rx = subframe_rx; if (!oai_exit) { //LOG_D(PHY,"eNB_top in %p (proc %p, CC_id %d), frame %d, subframe %d, instance_cnt_prach %d\n", //(void*)pthread_self(), proc, eNB->CC_id, proc->frame_rx,proc->subframe_rx,proc->instance_cnt_prach); T(T_ENB_MASTER_TICK, T_INT(0), T_INT(proc->frame_rx), T_INT(proc->subframe_rx)); proc_rxtx->subframe_rx = proc->subframe_rx; proc_rxtx->frame_rx = proc->frame_rx; proc_rxtx->subframe_tx = (proc->subframe_rx+4)%10; proc_rxtx->frame_tx = (proc->subframe_rx>5) ? (1+proc->frame_rx)&1023 : proc->frame_rx; proc->frame_tx = proc_rxtx->frame_tx; proc_rxtx->timestamp_tx = proc->timestamp_tx; if (rxtx(eNB,proc_rxtx,string) < 0) LOG_E(PHY,"eNB %d CC_id %d failed during execution\n",eNB->Mod_id,eNB->CC_id); LOG_D(PHY,"eNB_top out %p (proc %p, CC_id %d), frame %d, subframe %d, instance_cnt_prach %d\n", (void*)pthread_self(), proc, eNB->CC_id, proc->frame_rx,proc->subframe_rx,proc->instance_cnt_prach); } } int wakeup_rxtx(PHY_VARS_eNB *eNB,RU_t *ru) { eNB_proc_t *proc=&eNB->proc; eNB_rxtx_proc_t *proc_rxtx=&proc->proc_rxtx[proc->frame_rx&1]; LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms; int i; struct timespec wait; LOG_D(PHY,"About to wake RUs\n"); pthread_mutex_lock(&proc->mutex_RU); LOG_D(PHY,"eNB->num_RU:%d\n", eNB->num_RU); for (i=0;i<eNB->num_RU;i++) { LOG_D(PHY,"eNB->RU_list[%d]:%p\n",i,eNB->RU_list[i]); if (ru == eNB->RU_list[i]) { LOG_D(PHY,"proc->RU_mask:%02x\n", proc->RU_mask); if ((proc->RU_mask&(1<<i)) > 0) LOG_E(PHY,"eNB %d frame %d, subframe %d : previous information from RU %d (num_RU %d,mask %x) has not been served yet!\n", eNB->Mod_id,proc->frame_rx,proc->subframe_rx,ru->idx,eNB->num_RU,proc->RU_mask); proc->RU_mask |= (1<<i); } } if (proc->RU_mask != (1<<eNB->num_RU)-1) { // not all RUs have provided their information so return LOG_E(PHY,"Not all RUs have provided their info\n"); pthread_mutex_unlock(&proc->mutex_RU); return(0); } else { // all RUs have provided their information so continue on and wakeup eNB processing proc->RU_mask = 0; pthread_mutex_unlock(&proc->mutex_RU); } wait.tv_sec=0; wait.tv_nsec=5000000L; #if 0 /* accept some delay in processing - up to 5ms */ for (i = 0; i < 10 && proc_rxtx->instance_cnt_rxtx == 0; i++) { LOG_W( PHY,"[eNB] Frame %d Subframe %d, eNB RXn-TXnp4 thread busy!! (cnt_rxtx %i)\n", proc_rxtx->frame_tx, proc_rxtx->subframe_tx, proc_rxtx->instance_cnt_rxtx); usleep(500); } if (proc_rxtx->instance_cnt_rxtx == 0) { //exit_fun( "TX thread busy" ); - DJP - this is commented out just whilst I work out what has gone wrong return(-1); } #endif // wake up TX for subframe n+4 // lock the TX mutex and make sure the thread is ready if (pthread_mutex_timedlock(&proc_rxtx->mutex_rxtx,&wait) != 0) { LOG_E( PHY, "[eNB] ERROR pthread_mutex_lock for eNB RXTX thread %d (IC %d)\n", proc_rxtx->subframe_rx&1,proc_rxtx->instance_cnt_rxtx ); exit_fun( "error locking mutex_rxtx" ); return(-1); } ++proc_rxtx->instance_cnt_rxtx; LOG_D(PHY,"%s() %u/%u Just incremented proc->instance_cnt_rxtx:%d\n", __FUNCTION__, proc_rxtx->frame_tx, proc_rxtx->subframe_tx, proc_rxtx->instance_cnt_rxtx); // We have just received and processed the common part of a subframe, say n. // TS_rx is the last received timestamp (start of 1st slot), TS_tx is the desired // transmitted timestamp of the next TX slot (first). // The last (TS_rx mod samples_per_frame) was n*samples_per_tti, // we want to generate subframe (n+4), so TS_tx = TX_rx+4*samples_per_tti, // and proc->subframe_tx = proc->subframe_rx+4 proc_rxtx->timestamp_tx = proc->timestamp_rx + (4*fp->samples_per_tti); proc_rxtx->frame_rx = proc->frame_rx; proc_rxtx->subframe_rx = proc->subframe_rx; proc_rxtx->frame_tx = (proc_rxtx->subframe_rx > 5) ? (proc_rxtx->frame_rx+1)&1023 : proc_rxtx->frame_rx; proc_rxtx->subframe_tx = (proc_rxtx->subframe_rx + 4)%10; LOG_D(PHY,"Signal &proc_rxtx->cond_rxtx\n"); // the thread can now be woken up if (pthread_cond_signal(&proc_rxtx->cond_rxtx) != 0) { LOG_E( PHY, "[eNB] ERROR pthread_cond_signal for eNB RXn-TXnp4 thread\n"); exit_fun( "ERROR pthread_cond_signal" ); return(-1); } pthread_mutex_unlock( &proc_rxtx->mutex_rxtx ); return(0); } void wakeup_prach_eNB(PHY_VARS_eNB *eNB,RU_t *ru,int frame,int subframe) { eNB_proc_t *proc = &eNB->proc; LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms; int i; if (ru!=NULL) { pthread_mutex_lock(&proc->mutex_RU_PRACH); for (i=0;i<eNB->num_RU;i++) { if (ru == eNB->RU_list[i]) { LOG_D(PHY,"frame %d, subframe %d: RU %d for eNB %d signals PRACH (mask %x, num_RU %d)\n",frame,subframe,i,eNB->Mod_id,proc->RU_mask_prach,eNB->num_RU); if ((proc->RU_mask_prach&(1<<i)) > 0) LOG_E(PHY,"eNB %d frame %d, subframe %d : previous information (PRACH) from RU %d (num_RU %d, mask %x) has not been served yet!\n", eNB->Mod_id,frame,subframe,ru->idx,eNB->num_RU,proc->RU_mask_prach); proc->RU_mask_prach |= (1<<i); } } if (proc->RU_mask_prach != (1<<eNB->num_RU)-1) { // not all RUs have provided their information so return pthread_mutex_unlock(&proc->mutex_RU_PRACH); return; } else { // all RUs have provided their information so continue on and wakeup eNB processing proc->RU_mask_prach = 0; pthread_mutex_unlock(&proc->mutex_RU_PRACH); } } // check if we have to detect PRACH first if (is_prach_subframe(fp,frame,subframe)>0) { LOG_D(PHY,"Triggering prach processing, frame %d, subframe %d\n",frame,subframe); if (proc->instance_cnt_prach == 0) { LOG_W(PHY,"[eNB] Frame %d Subframe %d, dropping PRACH\n", frame,subframe); return; } // wake up thread for PRACH RX if (pthread_mutex_lock(&proc->mutex_prach) != 0) { LOG_E( PHY, "[eNB] ERROR pthread_mutex_lock for eNB PRACH thread %d (IC %d)\n", proc->thread_index, proc->instance_cnt_prach); exit_fun( "error locking mutex_prach" ); return; } ++proc->instance_cnt_prach; // set timing for prach thread proc->frame_prach = frame; proc->subframe_prach = subframe; // the thread can now be woken up if (pthread_cond_signal(&proc->cond_prach) != 0) { LOG_E( PHY, "[eNB] ERROR pthread_cond_signal for eNB PRACH thread %d\n", proc->thread_index); exit_fun( "ERROR pthread_cond_signal" ); return; } pthread_mutex_unlock( &proc->mutex_prach ); } } #ifdef Rel14 void wakeup_prach_eNB_br(PHY_VARS_eNB *eNB,RU_t *ru,int frame,int subframe) { eNB_proc_t *proc = &eNB->proc; LTE_DL_FRAME_PARMS *fp=&eNB->frame_parms; int i; if (ru!=NULL) { pthread_mutex_lock(&proc->mutex_RU_PRACH_br); for (i=0;i<eNB->num_RU;i++) { if (ru == eNB->RU_list[i]) { LOG_D(PHY,"frame %d, subframe %d: RU %d for eNB %d signals PRACH BR (mask %x, num_RU %d)\n",frame,subframe,i,eNB->Mod_id,proc->RU_mask_prach_br,eNB->num_RU); if ((proc->RU_mask_prach_br&(1<<i)) > 0) LOG_E(PHY,"eNB %d frame %d, subframe %d : previous information (PRACH BR) from RU %d (num_RU %d, mask %x) has not been served yet!\n", eNB->Mod_id,frame,subframe,ru->idx,eNB->num_RU,proc->RU_mask_prach_br); proc->RU_mask_prach_br |= (1<<i); } } if (proc->RU_mask_prach_br != (1<<eNB->num_RU)-1) { // not all RUs have provided their information so return pthread_mutex_unlock(&proc->mutex_RU_PRACH_br); return; } else { // all RUs have provided their information so continue on and wakeup eNB processing proc->RU_mask_prach_br = 0; pthread_mutex_unlock(&proc->mutex_RU_PRACH_br); } } // check if we have to detect PRACH first if (is_prach_subframe(fp,frame,subframe)>0) { LOG_D(PHY,"Triggering prach br processing, frame %d, subframe %d\n",frame,subframe); if (proc->instance_cnt_prach_br == 0) { LOG_W(PHY,"[eNB] Frame %d Subframe %d, dropping PRACH BR\n", frame,subframe); return; } // wake up thread for PRACH RX if (pthread_mutex_lock(&proc->mutex_prach_br) != 0) { LOG_E( PHY, "[eNB] ERROR pthread_mutex_lock for eNB PRACH thread %d (IC %d)\n", proc->thread_index, proc->instance_cnt_prach_br); exit_fun( "error locking mutex_prach" ); return; } ++proc->instance_cnt_prach_br; // set timing for prach thread proc->frame_prach_br = frame; proc->subframe_prach_br = subframe; // the thread can now be woken up if (pthread_cond_signal(&proc->cond_prach_br) != 0) { LOG_E( PHY, "[eNB] ERROR pthread_cond_signal for eNB PRACH BR thread %d\n", proc->thread_index); exit_fun( "ERROR pthread_cond_signal" ); return; } pthread_mutex_unlock( &proc->mutex_prach_br ); } } #endif /*! * \brief The prach receive thread of eNB. * \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_prach( void* param ) { static int eNB_thread_prach_status; PHY_VARS_eNB *eNB= (PHY_VARS_eNB *)param; eNB_proc_t *proc = &eNB->proc; // set default return value eNB_thread_prach_status = 0; thread_top_init("eNB_thread_prach",1,500000L,1000000L,20000000L); while (!oai_exit) { if (oai_exit) break; if (wait_on_condition(&proc->mutex_prach,&proc->cond_prach,&proc->instance_cnt_prach,"eNB_prach_thread") < 0) break; LOG_D(PHY,"Running eNB prach procedures\n"); prach_procedures(eNB #ifdef Rel14 ,0 #endif ); if (release_thread(&proc->mutex_prach,&proc->instance_cnt_prach,"eNB_prach_thread") < 0) break; } LOG_I(PHY, "Exiting eNB thread PRACH\n"); eNB_thread_prach_status = 0; return &eNB_thread_prach_status; } #ifdef Rel14 /*! * \brief The prach receive thread of eNB for BL/CE UEs. * \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_prach_br( void* param ) { static int eNB_thread_prach_status; PHY_VARS_eNB *eNB= (PHY_VARS_eNB *)param; eNB_proc_t *proc = &eNB->proc; // set default return value eNB_thread_prach_status = 0; thread_top_init("eNB_thread_prach_br",1,500000L,1000000L,20000000L); while (!oai_exit) { if (oai_exit) break; if (wait_on_condition(&proc->mutex_prach_br,&proc->cond_prach_br,&proc->instance_cnt_prach_br,"eNB_prach_thread_br") < 0) break; LOG_D(PHY,"Running eNB prach procedures for BL/CE UEs\n"); prach_procedures(eNB,1); if (release_thread(&proc->mutex_prach_br,&proc->instance_cnt_prach_br,"eNB_prach_thread_br") < 0) break; } LOG_I(PHY, "Exiting eNB thread PRACH BR\n"); eNB_thread_prach_status = 0; return &eNB_thread_prach_status; } #endif extern void init_fep_thread(PHY_VARS_eNB *, pthread_attr_t *); extern void init_td_thread(PHY_VARS_eNB *, pthread_attr_t *); extern void init_te_thread(PHY_VARS_eNB *, pthread_attr_t *); void init_eNB_proc(int inst) { int i=0; int CC_id; PHY_VARS_eNB *eNB; eNB_proc_t *proc; eNB_rxtx_proc_t *proc_rxtx; pthread_attr_t *attr0=NULL,*attr1=NULL,*attr_prach=NULL; //*attr_td=NULL,*attr_te=NULL; #ifdef Rel14 pthread_attr_t *attr_prach_br=NULL; #endif LOG_I(PHY,"%s(inst:%d) RC.nb_CC[inst]:%d \n",__FUNCTION__,inst,RC.nb_CC[inst]); for (CC_id=0; CC_id<RC.nb_CC[inst]; CC_id++) { eNB = RC.eNB[inst][CC_id]; #ifndef OCP_FRAMEWORK LOG_I(PHY,"Initializing eNB processes instance:%d CC_id %d \n",inst,CC_id); #endif proc = &eNB->proc; proc_rxtx = proc->proc_rxtx; proc_rxtx[0].instance_cnt_rxtx = -1; proc_rxtx[1].instance_cnt_rxtx = -1; proc->instance_cnt_prach = -1; proc->instance_cnt_asynch_rxtx = -1; proc->CC_id = CC_id; proc->first_rx=1; proc->first_tx=1; proc->RU_mask=0; proc->RU_mask_prach=0; pthread_mutex_init( &eNB->UL_INFO_mutex, NULL); pthread_mutex_init( &proc_rxtx[0].mutex_rxtx, NULL); pthread_mutex_init( &proc_rxtx[1].mutex_rxtx, NULL); pthread_cond_init( &proc_rxtx[0].cond_rxtx, NULL); pthread_cond_init( &proc_rxtx[1].cond_rxtx, NULL); pthread_mutex_init( &proc->mutex_prach, NULL); pthread_mutex_init( &proc->mutex_asynch_rxtx, NULL); pthread_mutex_init( &proc->mutex_RU,NULL); pthread_mutex_init( &proc->mutex_RU_PRACH,NULL); pthread_cond_init( &proc->cond_prach, NULL); pthread_cond_init( &proc->cond_asynch_rxtx, NULL); pthread_attr_init( &proc->attr_prach); pthread_attr_init( &proc->attr_asynch_rxtx); // pthread_attr_init( &proc->attr_td); // pthread_attr_init( &proc->attr_te); pthread_attr_init( &proc_rxtx[0].attr_rxtx); pthread_attr_init( &proc_rxtx[1].attr_rxtx); #ifdef Rel14 proc->instance_cnt_prach_br = -1; proc->RU_mask_prach_br=0; pthread_mutex_init( &proc->mutex_prach_br, NULL); pthread_mutex_init( &proc->mutex_RU_PRACH_br,NULL); pthread_cond_init( &proc->cond_prach_br, NULL); pthread_attr_init( &proc->attr_prach_br); #endif #ifndef DEADLINE_SCHEDULER attr0 = &proc_rxtx[0].attr_rxtx; attr1 = &proc_rxtx[1].attr_rxtx; attr_prach = &proc->attr_prach; #ifdef Rel14 attr_prach_br = &proc->attr_prach_br; #endif // attr_td = &proc->attr_td; // attr_te = &proc->attr_te; #endif LOG_I(PHY,"eNB->single_thread_flag:%d\n", eNB->single_thread_flag); if (eNB->single_thread_flag==0) { pthread_create( &proc_rxtx[0].pthread_rxtx, attr0, eNB_thread_rxtx, &proc_rxtx[0] ); pthread_create( &proc_rxtx[1].pthread_rxtx, attr1, eNB_thread_rxtx, &proc_rxtx[1] ); } pthread_create( &proc->pthread_prach, attr_prach, eNB_thread_prach, eNB ); #ifdef Rel14 pthread_create( &proc->pthread_prach_br, attr_prach_br, eNB_thread_prach_br, eNB ); #endif char name[16]; if (eNB->single_thread_flag==0) { snprintf( name, sizeof(name), "RXTX0 %d", i ); pthread_setname_np( proc_rxtx[0].pthread_rxtx, name ); snprintf( name, sizeof(name), "RXTX1 %d", i ); pthread_setname_np( proc_rxtx[1].pthread_rxtx, name ); } AssertFatal(proc->instance_cnt_prach == -1,"instance_cnt_prach = %d\n",proc->instance_cnt_prach); } //for multiple CCs: setup master and slaves /* for (CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) { eNB = PHY_vars_eNB_g[inst][CC_id]; if (eNB->node_timing == synch_to_ext_device) { //master eNB->proc.num_slaves = MAX_NUM_CCs-1; eNB->proc.slave_proc = (eNB_proc_t**)malloc(eNB->proc.num_slaves*sizeof(eNB_proc_t*)); for (i=0; i< eNB->proc.num_slaves; i++) { if (i < CC_id) eNB->proc.slave_proc[i] = &(PHY_vars_eNB_g[inst][i]->proc); if (i >= CC_id) eNB->proc.slave_proc[i] = &(PHY_vars_eNB_g[inst][i+1]->proc); } } } */ /* setup PHY proc TX sync mechanism */ pthread_mutex_init(&sync_phy_proc.mutex_phy_proc_tx, NULL); pthread_cond_init(&sync_phy_proc.cond_phy_proc_tx, NULL); sync_phy_proc.phy_proc_CC_id = 0; } /*! * \brief Terminate eNB TX and RX threads. */ void kill_eNB_proc(int inst) { int *status; PHY_VARS_eNB *eNB; eNB_proc_t *proc; eNB_rxtx_proc_t *proc_rxtx; for (int CC_id=0; CC_id<MAX_NUM_CCs; CC_id++) { eNB=RC.eNB[inst][CC_id]; proc = &eNB->proc; proc_rxtx = &proc->proc_rxtx[0]; LOG_I(PHY, "Killing TX CC_id %d inst %d\n", CC_id, inst ); if (eNB->single_thread_flag==0) { proc_rxtx[0].instance_cnt_rxtx = 0; // FIXME data race! proc_rxtx[1].instance_cnt_rxtx = 0; // FIXME data race! pthread_cond_signal( &proc_rxtx[0].cond_rxtx ); pthread_cond_signal( &proc_rxtx[1].cond_rxtx ); } proc->instance_cnt_prach = 0; pthread_cond_signal( &proc->cond_prach ); pthread_cond_broadcast(&sync_phy_proc.cond_phy_proc_tx); pthread_join( proc->pthread_prach, (void**)&status ); LOG_I(PHY, "Destroying prach mutex/cond\n"); pthread_mutex_destroy( &proc->mutex_prach ); pthread_cond_destroy( &proc->cond_prach ); #ifdef Rel14 proc->instance_cnt_prach_br = 0; pthread_cond_signal( &proc->cond_prach_br ); pthread_join( proc->pthread_prach_br, (void**)&status ); pthread_mutex_destroy( &proc->mutex_prach_br ); pthread_cond_destroy( &proc->cond_prach_br ); #endif LOG_I(PHY, "Destroying UL_INFO mutex\n"); pthread_mutex_destroy(&eNB->UL_INFO_mutex); int i; if (eNB->single_thread_flag==0) { for (i=0;i<2;i++) { LOG_I(PHY, "Joining rxtx[%d] mutex/cond\n",i); pthread_join( proc_rxtx[i].pthread_rxtx, (void**)&status ); LOG_I(PHY, "Destroying rxtx[%d] mutex/cond\n",i); pthread_mutex_destroy( &proc_rxtx[i].mutex_rxtx ); pthread_cond_destroy( &proc_rxtx[i].cond_rxtx ); } } } } void reset_opp_meas(void) { int sfn; reset_meas(&softmodem_stats_mt); reset_meas(&softmodem_stats_hw); for (sfn=0; sfn < 10; sfn++) { reset_meas(&softmodem_stats_rxtx_sf); reset_meas(&softmodem_stats_rx_sf); } } void print_opp_meas(void) { int sfn=0; print_meas(&softmodem_stats_mt, "Main ENB Thread", NULL, NULL); print_meas(&softmodem_stats_hw, "HW Acquisation", NULL, NULL); for (sfn=0; sfn < 10; sfn++) { print_meas(&softmodem_stats_rxtx_sf,"[eNB][total_phy_proc_rxtx]",NULL, NULL); print_meas(&softmodem_stats_rx_sf,"[eNB][total_phy_proc_rx]",NULL,NULL); } } void init_transport(PHY_VARS_eNB *eNB) { int i; int j; LTE_DL_FRAME_PARMS *fp = &eNB->frame_parms; LOG_E(PHY, "Initialise transport\n"); for (i=0; i<NUMBER_OF_UE_MAX; i++) { LOG_I(PHY,"Allocating Transport Channel Buffers for DLSCH, UE %d\n",i); for (j=0; j<2; j++) { eNB->dlsch[i][j] = new_eNB_dlsch(1,8,NSOFT,fp->N_RB_DL,0,fp); if (!eNB->dlsch[i][j]) { LOG_E(PHY,"Can't get eNB dlsch structures for UE %d \n", i); exit(-1); } else { eNB->dlsch[i][j]->rnti=0; LOG_D(PHY,"dlsch[%d][%d] => %p rnti:%d\n",i,j,eNB->dlsch[i][j], eNB->dlsch[i][j]->rnti); } } LOG_I(PHY,"Allocating Transport Channel Buffer for ULSCH, UE %d\n",i); eNB->ulsch[1+i] = new_eNB_ulsch(MAX_TURBO_ITERATIONS,fp->N_RB_UL, 0); if (!eNB->ulsch[1+i]) { LOG_E(PHY,"Can't get eNB ulsch structures\n"); exit(-1); } // this is the transmission mode for the signalling channels // this will be overwritten with the real transmission mode by the RRC once the UE is connected eNB->transmission_mode[i] = fp->nb_antenna_ports_eNB==1 ? 1 : 2; } // ULSCH for RA eNB->ulsch[0] = new_eNB_ulsch(MAX_TURBO_ITERATIONS, fp->N_RB_UL, 0); if (!eNB->ulsch[0]) { LOG_E(PHY,"Can't get eNB ulsch structures\n"); exit(-1); } eNB->dlsch_SI = new_eNB_dlsch(1,8,NSOFT,fp->N_RB_DL, 0, fp); LOG_D(PHY,"eNB %d.%d : SI %p\n",eNB->Mod_id,eNB->CC_id,eNB->dlsch_SI); eNB->dlsch_ra = new_eNB_dlsch(1,8,NSOFT,fp->N_RB_DL, 0, fp); LOG_D(PHY,"eNB %d.%d : RA %p\n",eNB->Mod_id,eNB->CC_id,eNB->dlsch_ra); eNB->dlsch_MCH = new_eNB_dlsch(1,8,NSOFT,fp->N_RB_DL, 0, fp); LOG_D(PHY,"eNB %d.%d : MCH %p\n",eNB->Mod_id,eNB->CC_id,eNB->dlsch_MCH); eNB->rx_total_gain_dB=130; for(i=0; i<NUMBER_OF_UE_MAX; i++) eNB->mu_mimo_mode[i].dl_pow_off = 2; eNB->check_for_total_transmissions = 0; eNB->check_for_MUMIMO_transmissions = 0; eNB->FULL_MUMIMO_transmissions = 0; eNB->check_for_SUMIMO_transmissions = 0; fp->pucch_config_common.deltaPUCCH_Shift = 1; } void init_eNB_afterRU(void) { int inst,CC_id,ru_id,i,aa; PHY_VARS_eNB *eNB; LOG_I(PHY,"%s() RC.nb_inst:%d\n", __FUNCTION__, RC.nb_inst); for (inst=0;inst<RC.nb_inst;inst++) { LOG_I(PHY,"RC.nb_CC[inst]:%d\n", RC.nb_CC[inst]); for (CC_id=0;CC_id<RC.nb_CC[inst];CC_id++) { LOG_I(PHY,"RC.nb_CC[inst:%d][CC_id:%d]:%p\n", inst, CC_id, RC.eNB[inst][CC_id]); eNB = RC.eNB[inst][CC_id]; phy_init_lte_eNB(eNB,0,0); // map antennas and PRACH signals to eNB RX if (0) AssertFatal(eNB->num_RU>0,"Number of RU attached to eNB %d is zero\n",eNB->Mod_id); LOG_I(PHY,"Mapping RX ports from %d RUs to eNB %d\n",eNB->num_RU,eNB->Mod_id); eNB->frame_parms.nb_antennas_rx = 0; LOG_E(PHY,"Overwriting eNB->prach_vars.rxsigF[0]:%p\n", eNB->prach_vars.rxsigF[0]); eNB->prach_vars.rxsigF[0] = (int16_t**)malloc16(64*sizeof(int16_t*)); #ifdef Rel14 for (int ce_level=0;ce_level<4;ce_level++) { LOG_E(PHY,"Overwriting eNB->prach_vars_br.rxsigF.rxsigF[0]:%p\n", eNB->prach_vars_br.rxsigF[ce_level]); eNB->prach_vars_br.rxsigF[ce_level] = (int16_t**)malloc16(64*sizeof(int16_t*)); } #endif LOG_I(PHY,"eNB->num_RU:%d\n", eNB->num_RU); for (ru_id=0,aa=0;ru_id<eNB->num_RU;ru_id++) { eNB->frame_parms.nb_antennas_rx += eNB->RU_list[ru_id]->nb_rx; AssertFatal(eNB->RU_list[ru_id]->common.rxdataF!=NULL, "RU %d : common.rxdataF is NULL\n", eNB->RU_list[ru_id]->idx); AssertFatal(eNB->RU_list[ru_id]->prach_rxsigF!=NULL, "RU %d : prach_rxsigF is NULL\n", eNB->RU_list[ru_id]->idx); for (i=0;i<eNB->RU_list[ru_id]->nb_rx;aa++,i++) { LOG_I(PHY,"Attaching RU %d antenna %d to eNB antenna %d\n",eNB->RU_list[ru_id]->idx,i,aa); eNB->prach_vars.rxsigF[0][aa] = eNB->RU_list[ru_id]->prach_rxsigF[i]; #ifdef Rel14 for (int ce_level=0;ce_level<4;ce_level++) eNB->prach_vars_br.rxsigF[ce_level][aa] = eNB->RU_list[ru_id]->prach_rxsigF_br[ce_level][i]; #endif eNB->common_vars.rxdataF[aa] = eNB->RU_list[ru_id]->common.rxdataF[i]; } } if (eNB->frame_parms.nb_antennas_rx < 1) { LOG_I(PHY, "%s() ************* DJP ***** eNB->frame_parms.nb_antennas_rx:%d - GOING TO HARD CODE TO 1", __FUNCTION__, eNB->frame_parms.nb_antennas_rx); eNB->frame_parms.nb_antennas_rx = 1; } else { LOG_I(PHY," Delete code\n"); } if (eNB->frame_parms.nb_antennas_tx < 1) { LOG_I(PHY, "%s() ************* DJP ***** eNB->frame_parms.nb_antennas_tx:%d - GOING TO HARD CODE TO 1", __FUNCTION__, eNB->frame_parms.nb_antennas_tx); eNB->frame_parms.nb_antennas_tx = 1; } else { LOG_I(PHY," Delete code\n"); } AssertFatal(eNB->frame_parms.nb_antennas_rx >0, "inst %d, CC_id %d : nb_antennas_rx %d\n",inst,CC_id,eNB->frame_parms.nb_antennas_rx); LOG_I(PHY,"inst %d, CC_id %d : nb_antennas_rx %d\n",inst,CC_id,eNB->frame_parms.nb_antennas_rx); init_transport(eNB); //init_precoding_weights(RC.eNB[inst][CC_id]); } printf("RC.nb_CC[inst:%d]:%d CC_id:%d AFTER LOOP - About to init_eNB_proc\n", inst, RC.nb_CC[inst], CC_id); init_eNB_proc(inst); } printf("%s() RC.nb_inst:%d AFTER LOOP\n", __FUNCTION__, RC.nb_inst); printf("%s:%d RC.nb_RU:%d\n", __FILE__, __LINE__, RC.nb_RU); for (ru_id=0;ru_id<RC.nb_RU;ru_id++) { AssertFatal(RC.ru[ru_id]!=NULL,"ru_id %d is null\n",ru_id); RC.ru[ru_id]->wakeup_rxtx = wakeup_rxtx; RC.ru[ru_id]->wakeup_prach_eNB = wakeup_prach_eNB; RC.ru[ru_id]->wakeup_prach_eNB_br = wakeup_prach_eNB_br; RC.ru[ru_id]->eNB_top = eNB_top; } LOG_I(PHY,"%s() Exitting\n", __FUNCTION__); } void init_eNB(int single_thread_flag,int wait_for_sync) { int CC_id; int inst; PHY_VARS_eNB *eNB; LOG_I(PHY,"[lte-softmodem.c] eNB structure about to allocated RC.nb_L1_inst:%d RC.nb_L1_CC[0]:%d\n",RC.nb_L1_inst,RC.nb_L1_CC[0]); if (RC.eNB == NULL) RC.eNB = (PHY_VARS_eNB***) malloc(RC.nb_L1_inst*sizeof(PHY_VARS_eNB **)); LOG_I(PHY,"[lte-softmodem.c] eNB structure RC.eNB allocated\n"); for (inst=0;inst<RC.nb_L1_inst;inst++) { if (RC.eNB[inst] == NULL) RC.eNB[inst] = (PHY_VARS_eNB**) malloc(RC.nb_CC[inst]*sizeof(PHY_VARS_eNB *)); for (CC_id=0;CC_id<RC.nb_L1_CC[inst];CC_id++) { if (RC.eNB[inst][CC_id] == NULL) RC.eNB[inst][CC_id] = (PHY_VARS_eNB*) malloc(sizeof(PHY_VARS_eNB)); eNB = RC.eNB[inst][CC_id]; eNB->abstraction_flag = 0; eNB->single_thread_flag = single_thread_flag; LOG_I(PHY,"Initializing eNB %d CC_id %d single_thread_flag:%d\n",inst,CC_id,single_thread_flag); #ifndef OCP_FRAMEWORK LOG_I(PHY,"Initializing eNB %d CC_id %d\n",inst,CC_id); #endif eNB->td = ulsch_decoding_data;//(single_thread_flag==1) ? ulsch_decoding_data_2thread : ulsch_decoding_data; eNB->te = dlsch_encoding;//(single_thread_flag==1) ? dlsch_encoding_2threads : dlsch_encoding; LOG_I(PHY,"Registering with MAC interface module\n"); AssertFatal((eNB->if_inst = IF_Module_init(inst))!=NULL,"Cannot register interface"); eNB->if_inst->schedule_response = schedule_response; eNB->if_inst->PHY_config_req = phy_config_request; memset((void*)&eNB->UL_INFO,0,sizeof(eNB->UL_INFO)); memset((void*)&eNB->Sched_INFO,0,sizeof(eNB->Sched_INFO)); LOG_I(PHY,"Setting indication lists\n"); eNB->UL_INFO.rx_ind.rx_indication_body.rx_pdu_list = eNB->rx_pdu_list; eNB->UL_INFO.crc_ind.crc_indication_body.crc_pdu_list = eNB->crc_pdu_list; eNB->UL_INFO.sr_ind.sr_pdu_list = eNB->sr_pdu_list; eNB->UL_INFO.harq_ind.harq_indication_body.harq_pdu_list = eNB->harq_pdu_list; eNB->UL_INFO.cqi_ind.cqi_pdu_list = eNB->cqi_pdu_list; eNB->UL_INFO.cqi_ind.cqi_raw_pdu_list = eNB->cqi_raw_pdu_list; } } LOG_I(PHY,"[lte-softmodem.c] eNB structure allocated\n"); } void stop_eNB(int nb_inst) { for (int inst=0;inst<nb_inst;inst++) { LOG_I(PHY,"Killing eNB %d processing threads\n",inst); kill_eNB_proc(inst); } }