lte-enb.c

/*
 * 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 1.1  (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
 */

/*! \function wakeup_txfh
 * \brief Implementation of creating multiple RU threads for beamforming emulation
 * \author TH Wang(Judy), TY Hsu, SY Yeh(fdragon)
 * \date 2018
 * \version 0.1
 * \company Eurecom and ISIP@NCTU
 * \email: Tsu-Han.Wang@eurecom.fr,tyhsu@cs.nctu.edu.tw,fdragon.cs96g@g2.nctu.edu.tw
 * \note
 * \warning
 */


#define _GNU_SOURCE
#include <pthread.h>


#undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all

#include "assertions.h"


#include "PHY/types.h"

#include "PHY/INIT/phy_init.h"

#include "PHY/defs_eNB.h"
#include "SCHED/sched_eNB.h"
#include "PHY/LTE_TRANSPORT/transport_proto.h"
#include "nfapi/oai_integration/vendor_ext.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 "radio/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_ESTIMATION/lte_estimation.h"

#include "PHY/phy_extern.h"

#include "LAYER2/MAC/mac.h"
#include "LAYER2/MAC/mac_extern.h"
#include "LAYER2/MAC/mac_proto.h"
#include "RRC/LTE/rrc_extern.h"
#include "PHY_INTERFACE/phy_interface.h"
#include "common/utils/LOG/log.h"
#include "UTIL/OTG/otg_tx.h"
#include "UTIL/OTG/otg_externs.h"
#include "UTIL/MATH/oml.h"
#include "common/utils/LOG/vcd_signal_dumper.h"
#include "UTIL/OPT/opt.h"
#include "enb_config.h"
#include "executables/lte-softmodem.h"

#include "s1ap_eNB.h"
#include "SIMULATION/ETH_TRANSPORT/proto.h"

#include "T.h"

#include "common/ran_context.h"
extern RAN_CONTEXT_t RC;

//#define DEBUG_THREADS 1

//#define USRP_DEBUG 1
struct timing_info_t {
  //unsigned int frame, hw_slot, last_slot, next_slot;
  //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;

extern int oai_exit;

extern int transmission_mode;

extern int oaisim_flag;

#include "executables/thread-common.h"
//extern PARALLEL_CONF_t get_thread_parallel_conf(void);
//extern WORKER_CONF_t   get_thread_worker_conf(void);

//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 nfapi_meas; // 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 init_eNB(int,int);
void stop_eNB(int nb_inst);

int wakeup_tx(PHY_VARS_eNB *eNB, int frame_rx, int subframe_rx, int frame_tx, int subframe_tx, uint64_t timestamp_tx);
int wakeup_txfh(PHY_VARS_eNB *eNB, L1_rxtx_proc_t *proc, int frame_tx, int subframe_tx, uint64_t timestamp_tx);
void wakeup_prach_eNB(PHY_VARS_eNB *eNB,RU_t *ru, int frame, int subframe);
void wakeup_prach_eNB_br(PHY_VARS_eNB *eNB,RU_t *ru, int frame, int subframe);


extern void oai_subframe_ind(uint16_t sfn, uint16_t sf);
extern void add_subframe(uint16_t *frameP, uint16_t *subframeP, int offset);

//#define TICK_TO_US(ts) (ts.diff)
#define TICK_TO_US(ts) (ts.trials==0?0:ts.diff/ts.trials)


static inline int rxtx(PHY_VARS_eNB *eNB,
                       L1_rxtx_proc_t *proc,
                       char *thread_name) {
  int ret;
  start_meas(&softmodem_stats_rxtx_sf);
  //L1_rxtx_proc_t *L1_proc_tx = &eNB->proc.L1_proc_tx;
  // *******************************************************************
#if defined(PRE_SCD_THREAD)
  RU_t *ru = RC.ru[0];
#endif

  if (eNB ==NULL) {
    LOG_D(PHY,"%s:%d: rxtx invalid argument, eNB pointer is NULL",__FILE__,__LINE__);
    return -1;
  }

  if (NFAPI_MODE==NFAPI_MODE_PNF) {
    // I am a PNF and I need to let nFAPI know that we have a (sub)frame tick
    uint16_t frame = proc->frame_rx;
    uint16_t subframe = proc->subframe_rx;
    //add_subframe(&frame, &subframe, 4);
    //oai_subframe_ind(proc->frame_tx, proc->subframe_tx);
    //LOG_D(PHY, "oai_subframe_ind(frame:%u, subframe:%d) - NOT CALLED ********\n", frame, subframe);
    start_meas(&nfapi_meas);
    oai_subframe_ind(frame, subframe);
    stop_meas(&nfapi_meas);

    if (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.rach_ind.rach_indication_body.number_of_preambles ||
        eNB->UL_INFO.cqi_ind.cqi_indication_body.number_of_cqis
       ) {
      LOG_D(PHY, "UL_info[rx_ind:%05d:%d harqs:%05d:%d crcs:%05d:%d preambles:%05d:%d cqis:%d] RX:%04d%d TX:%04d%d num_pdcch_symbols:%d\n",
            NFAPI_SFNSF2DEC(eNB->UL_INFO.rx_ind.sfn_sf),   eNB->UL_INFO.rx_ind.rx_indication_body.number_of_pdus,
            NFAPI_SFNSF2DEC(eNB->UL_INFO.harq_ind.sfn_sf), eNB->UL_INFO.harq_ind.harq_indication_body.number_of_harqs,
            NFAPI_SFNSF2DEC(eNB->UL_INFO.crc_ind.sfn_sf),  eNB->UL_INFO.crc_ind.crc_indication_body.number_of_crcs,
            NFAPI_SFNSF2DEC(eNB->UL_INFO.rach_ind.sfn_sf), eNB->UL_INFO.rach_ind.rach_indication_body.number_of_preambles,
            eNB->UL_INFO.cqi_ind.cqi_indication_body.number_of_cqis,
            proc->frame_rx, proc->subframe_rx,
            proc->frame_tx, proc->subframe_tx, eNB->pdcch_vars[proc->subframe_tx&1].num_pdcch_symbols);
    }
  }

  if (NFAPI_MODE==NFAPI_MODE_PNF && eNB->pdcch_vars[proc->subframe_tx&1].num_pdcch_symbols == 0) {
    LOG_E(PHY, "eNB->pdcch_vars[proc->subframe_tx&1].num_pdcch_symbols == 0");