nr_rlc_oai_api.c 35.9 KB
Newer Older
Cedric Roux's avatar
Cedric Roux committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
/*
 * 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
 */

/* from openair */
#include "rlc.h"
#include "pdcp.h"

/* from nr rlc module */
#include "asn1_utils.h"
#include "nr_rlc_ue_manager.h"
#include "nr_rlc_entity.h"
30
#include "nr_rlc_oai_api.h"
31 32 33 34 35 36 37
#include "NR_RLC-BearerConfig.h"
#include "NR_DRB-ToAddMod.h"
#include "NR_DRB-ToAddModList.h"
#include "NR_SRB-ToAddModList.h"
#include "NR_DRB-ToReleaseList.h"
#include "NR_CellGroupConfig.h"
#include "NR_RLC-Config.h"
Xue Song's avatar
Xue Song committed
38
#include "common/ran_context.h"
Xue Song's avatar
Xue Song committed
39 40 41 42
#include "NR_UL-CCCH-Message.h"

#include "openair2/F1AP/f1ap_du_rrc_message_transfer.h"

Xue Song's avatar
Xue Song committed
43 44
#include "openair2/LAYER2/PROTO_AGENT/proto_agent.h"

Xue Song's avatar
Xue Song committed
45
extern RAN_CONTEXT_t RC;
Cedric Roux's avatar
Cedric Roux committed
46 47 48

#include <stdint.h>

Eurecom's avatar
Eurecom committed
49
#include <executables/softmodem-common.h>
50

Cedric Roux's avatar
Cedric Roux committed
51 52 53 54 55 56 57
static nr_rlc_ue_manager_t *nr_rlc_ue_manager;

/* TODO: handle time a bit more properly */
static uint64_t nr_rlc_current_time;
static int      nr_rlc_current_time_last_frame;
static int      nr_rlc_current_time_last_subframe;

58

59
void nr_rlc_bearer_init(NR_RLC_BearerConfig_t *RLC_BearerConfig, NR_RLC_BearerConfig__servedRadioBearer_PR rb_type){
60 61 62 63 64 65 66

  RLC_BearerConfig->servedRadioBearer                      = calloc(1, sizeof(*RLC_BearerConfig->servedRadioBearer));
  RLC_BearerConfig->reestablishRLC                         = calloc(1, sizeof(*RLC_BearerConfig->reestablishRLC));
  RLC_BearerConfig->rlc_Config                             = calloc(1, sizeof(*RLC_BearerConfig->rlc_Config));
  RLC_BearerConfig->mac_LogicalChannelConfig               = calloc(1, sizeof(*RLC_BearerConfig->mac_LogicalChannelConfig));

  *RLC_BearerConfig->reestablishRLC                        = NR_RLC_BearerConfig__reestablishRLC_true;
67 68 69 70 71 72 73 74 75 76
  if(rb_type == NR_RLC_BearerConfig__servedRadioBearer_PR_drb_Identity){
    RLC_BearerConfig->logicalChannelIdentity                 = 4;
    RLC_BearerConfig->servedRadioBearer->present             = NR_RLC_BearerConfig__servedRadioBearer_PR_drb_Identity;
    RLC_BearerConfig->servedRadioBearer->choice.drb_Identity = 1;
  }
  else{
    RLC_BearerConfig->logicalChannelIdentity                 = 1;
    RLC_BearerConfig->servedRadioBearer->present             = NR_RLC_BearerConfig__servedRadioBearer_PR_srb_Identity;
    RLC_BearerConfig->servedRadioBearer->choice.srb_Identity = 1;
  }
77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92

}

void nr_rlc_bearer_init_ul_spec(struct NR_LogicalChannelConfig *mac_LogicalChannelConfig){

  mac_LogicalChannelConfig->ul_SpecificParameters                              = calloc(1, sizeof(*mac_LogicalChannelConfig->ul_SpecificParameters));
  mac_LogicalChannelConfig->ul_SpecificParameters->priority                    = 1;
  mac_LogicalChannelConfig->ul_SpecificParameters->prioritisedBitRate          = NR_LogicalChannelConfig__ul_SpecificParameters__prioritisedBitRate_infinity;
  mac_LogicalChannelConfig->ul_SpecificParameters->bucketSizeDuration          = NR_LogicalChannelConfig__ul_SpecificParameters__bucketSizeDuration_ms50;
  mac_LogicalChannelConfig->ul_SpecificParameters->allowedServingCells         = NULL;
  mac_LogicalChannelConfig->ul_SpecificParameters->allowedSCS_List             = NULL;
  mac_LogicalChannelConfig->ul_SpecificParameters->maxPUSCH_Duration           = NULL;
  mac_LogicalChannelConfig->ul_SpecificParameters->configuredGrantType1Allowed = NULL;

  mac_LogicalChannelConfig->ul_SpecificParameters->logicalChannelGroup                = calloc(1,sizeof(*mac_LogicalChannelConfig->ul_SpecificParameters->logicalChannelGroup));
  *mac_LogicalChannelConfig->ul_SpecificParameters->logicalChannelGroup               = 1;
imad's avatar
imad committed
93 94
  mac_LogicalChannelConfig->ul_SpecificParameters->schedulingRequestID                = calloc(1,sizeof(*mac_LogicalChannelConfig->ul_SpecificParameters->schedulingRequestID));
  *mac_LogicalChannelConfig->ul_SpecificParameters->schedulingRequestID               = 0;
95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135
  mac_LogicalChannelConfig->ul_SpecificParameters->logicalChannelSR_Mask              = false;
  mac_LogicalChannelConfig->ul_SpecificParameters->logicalChannelSR_DelayTimerApplied = false;
  mac_LogicalChannelConfig->ul_SpecificParameters->bitRateQueryProhibitTimer          = NULL;

}

void nr_drb_config(struct NR_RLC_Config *rlc_Config, NR_RLC_Config_PR rlc_config_pr){

  switch (rlc_config_pr){
    case NR_RLC_Config_PR_um_Bi_Directional:
      // RLC UM Bi-directional Bearer configuration
      rlc_Config->choice.um_Bi_Directional                            = calloc(1, sizeof(*rlc_Config->choice.um_Bi_Directional));
      rlc_Config->choice.um_Bi_Directional->ul_UM_RLC.sn_FieldLength  = calloc(1, sizeof(*rlc_Config->choice.um_Bi_Directional->ul_UM_RLC.sn_FieldLength));
      *rlc_Config->choice.um_Bi_Directional->ul_UM_RLC.sn_FieldLength = NR_SN_FieldLengthUM_size12;
      rlc_Config->choice.um_Bi_Directional->dl_UM_RLC.sn_FieldLength  = calloc(1, sizeof(*rlc_Config->choice.um_Bi_Directional->dl_UM_RLC.sn_FieldLength));
      *rlc_Config->choice.um_Bi_Directional->dl_UM_RLC.sn_FieldLength = NR_SN_FieldLengthUM_size12;
      rlc_Config->choice.um_Bi_Directional->dl_UM_RLC.t_Reassembly    = NR_T_Reassembly_ms15;
      break;
    case NR_RLC_Config_PR_am:
      // RLC AM Bearer configuration
      rlc_Config->choice.am                             = calloc(1, sizeof(*rlc_Config->choice.am));
      rlc_Config->choice.am->ul_AM_RLC.sn_FieldLength   = calloc(1, sizeof(*rlc_Config->choice.am->ul_AM_RLC.sn_FieldLength));
      *rlc_Config->choice.am->ul_AM_RLC.sn_FieldLength  = NR_SN_FieldLengthAM_size18;
      rlc_Config->choice.am->ul_AM_RLC.t_PollRetransmit = NR_T_PollRetransmit_ms45;
      rlc_Config->choice.am->ul_AM_RLC.pollPDU          = NR_PollPDU_p64;
      rlc_Config->choice.am->ul_AM_RLC.pollByte         = NR_PollByte_kB500;
      rlc_Config->choice.am->ul_AM_RLC.maxRetxThreshold = NR_UL_AM_RLC__maxRetxThreshold_t32;
      rlc_Config->choice.am->dl_AM_RLC.sn_FieldLength   = calloc(1, sizeof(*rlc_Config->choice.am->dl_AM_RLC.sn_FieldLength));
      *rlc_Config->choice.am->dl_AM_RLC.sn_FieldLength  = NR_SN_FieldLengthAM_size18;
      rlc_Config->choice.am->dl_AM_RLC.t_Reassembly     = NR_T_Reassembly_ms15;
      rlc_Config->choice.am->dl_AM_RLC.t_StatusProhibit = NR_T_StatusProhibit_ms15;
      break;
    default:
      LOG_E (RLC, "Error in %s: RLC config type %d is not handled\n", __FUNCTION__, rlc_config_pr);
      break;
    }

  rlc_Config->present = rlc_config_pr;

}

Cedric Roux's avatar
Cedric Roux committed
136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163
void mac_rlc_data_ind     (
  const module_id_t         module_idP,
  const rnti_t              rntiP,
  const eNB_index_t         eNB_index,
  const frame_t             frameP,
  const eNB_flag_t          enb_flagP,
  const MBMS_flag_t         MBMS_flagP,
  const logical_chan_id_t   channel_idP,
  char                     *buffer_pP,
  const tb_size_t           tb_sizeP,
  num_tb_t                  num_tbP,
  crc_t                    *crcs_pP)
{
  nr_rlc_ue_t *ue;
  nr_rlc_entity_t *rb;

  if (module_idP != 0 || eNB_index != 0 || /*enb_flagP != 1 ||*/ MBMS_flagP != 0) {
    LOG_E(RLC, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }

  if (enb_flagP)
    T(T_ENB_RLC_MAC_UL, T_INT(module_idP), T_INT(rntiP),
      T_INT(channel_idP), T_INT(tb_sizeP));

  nr_rlc_manager_lock(nr_rlc_ue_manager);
  ue = nr_rlc_manager_get_ue(nr_rlc_ue_manager, rntiP);

164 165 166
  if(ue == NULL)
	  LOG_I(RLC, "RLC instance for the given UE was not found \n");

Cedric Roux's avatar
Cedric Roux committed
167
  switch (channel_idP) {
168
  case 1 ... 3: rb = ue->srb[channel_idP - 1]; break;
169
  case 4 ... 8: rb = ue->drb[channel_idP - 4]; break;
Cedric Roux's avatar
Cedric Roux committed
170 171 172 173
  default:      rb = NULL;                     break;
  }

  if (rb != NULL) {
174
	LOG_D(RLC, "RB found! (channel ID %d) \n", channel_idP);
Cedric Roux's avatar
Cedric Roux committed
175 176 177 178 179
    rb->set_time(rb, nr_rlc_current_time);
    rb->recv_pdu(rb, buffer_pP, tb_sizeP);
  } else {
    LOG_E(RLC, "%s:%d:%s: fatal: no RB found (channel ID %d)\n",
          __FILE__, __LINE__, __FUNCTION__, channel_idP);
180
    // exit(1);
Cedric Roux's avatar
Cedric Roux committed
181 182 183 184 185 186 187 188 189 190 191 192 193 194
  }

  nr_rlc_manager_unlock(nr_rlc_ue_manager);
}

tbs_size_t mac_rlc_data_req(
  const module_id_t       module_idP,
  const rnti_t            rntiP,
  const eNB_index_t       eNB_index,
  const frame_t           frameP,
  const eNB_flag_t        enb_flagP,
  const MBMS_flag_t       MBMS_flagP,
  const logical_chan_id_t channel_idP,
  const tb_size_t         tb_sizeP,
195 196 197
  char             *buffer_pP,
  const uint32_t sourceL2Id,
  const uint32_t destinationL2Id
Cedric Roux's avatar
Cedric Roux committed
198 199 200 201 202 203 204 205 206 207 208
   )
{
  int ret;
  nr_rlc_ue_t *ue;
  nr_rlc_entity_t *rb;
  int maxsize;

  nr_rlc_manager_lock(nr_rlc_ue_manager);
  ue = nr_rlc_manager_get_ue(nr_rlc_ue_manager, rntiP);

  switch (channel_idP) {
209
  case 1 ... 3: rb = ue->srb[channel_idP - 1]; break;
210
  case 4 ... 8: rb = ue->drb[channel_idP - 4]; break;
211 212 213 214
  default:
  rb = NULL;
  LOG_E(RLC, "In %s:%d:%s: data request for unknown RB with LCID 0x%02x !\n", __FILE__, __LINE__, __FUNCTION__, channel_idP);
  break;
Cedric Roux's avatar
Cedric Roux committed
215 216 217 218
  }

  if (rb != NULL) {
    rb->set_time(rb, nr_rlc_current_time);
219
    maxsize = tb_sizeP;
Cedric Roux's avatar
Cedric Roux committed
220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242
    ret = rb->generate_pdu(rb, buffer_pP, maxsize);
  } else {
    ret = 0;
  }

  nr_rlc_manager_unlock(nr_rlc_ue_manager);

  if (enb_flagP)
    T(T_ENB_RLC_MAC_DL, T_INT(module_idP), T_INT(rntiP),
      T_INT(channel_idP), T_INT(ret));

  return ret;
}

mac_rlc_status_resp_t mac_rlc_status_ind(
  const module_id_t       module_idP,
  const rnti_t            rntiP,
  const eNB_index_t       eNB_index,
  const frame_t           frameP,
  const sub_frame_t       subframeP,
  const eNB_flag_t        enb_flagP,
  const MBMS_flag_t       MBMS_flagP,
  const logical_chan_id_t channel_idP,
243 244
  const uint32_t sourceL2Id,
  const uint32_t destinationL2Id
Cedric Roux's avatar
Cedric Roux committed
245 246 247 248 249 250 251 252 253 254
  )
{
  nr_rlc_ue_t *ue;
  mac_rlc_status_resp_t ret;
  nr_rlc_entity_t *rb;

  nr_rlc_manager_lock(nr_rlc_ue_manager);
  ue = nr_rlc_manager_get_ue(nr_rlc_ue_manager, rntiP);

  switch (channel_idP) {
255
  case 1 ... 3: rb = ue->srb[channel_idP - 1]; break;
256
  case 4 ... 8: rb = ue->drb[channel_idP - 4]; break;
Cedric Roux's avatar
Cedric Roux committed
257 258 259 260 261 262
  default:      rb = NULL;                     break;
  }

  if (rb != NULL) {
    nr_rlc_entity_buffer_status_t buf_stat;
    rb->set_time(rb, nr_rlc_current_time);
263 264
    /* 38.321 deals with BSR values up to 81338368 bytes, after what it
     * reports '> 81338368' (table 6.1.3.1-2). Passing 100000000 is thus
Cedric Roux's avatar
Cedric Roux committed
265 266
     * more than enough.
     */
267 268
    // Fix me: temproary reduction meanwhile cpu cost of this computation is optimized
    buf_stat = rb->buffer_status(rb, 1000*1000);
Cedric Roux's avatar
Cedric Roux committed
269 270 271 272
    ret.bytes_in_buffer = buf_stat.status_size
                        + buf_stat.retx_size
                        + buf_stat.tx_size;
  } else {
273 274
    if (!(frameP%128)) //to supress this warning message
      LOG_W(RLC, "[%s] Radio Bearer (channel ID %d) is NULL for UE with rntiP %x\n", __FUNCTION__, channel_idP, rntiP);
Cedric Roux's avatar
Cedric Roux committed
275 276 277 278 279 280 281 282 283 284 285 286 287
    ret.bytes_in_buffer = 0;
  }

  nr_rlc_manager_unlock(nr_rlc_ue_manager);

  ret.pdus_in_buffer = 0;
  /* TODO: creation time may be important (unit: frame, as it seems) */
  ret.head_sdu_creation_time = 0;
  ret.head_sdu_remaining_size_to_send = 0;
  ret.head_sdu_is_segmented = 0;
  return ret;
}

288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317
rlc_buffer_occupancy_t mac_rlc_get_buffer_occupancy_ind(
  const module_id_t       module_idP,
  const rnti_t            rntiP,
  const eNB_index_t       eNB_index,
  const frame_t           frameP,
  const sub_frame_t       subframeP,
  const eNB_flag_t        enb_flagP,
  const logical_chan_id_t channel_idP)
{
  nr_rlc_ue_t *ue;
  rlc_buffer_occupancy_t ret;
  nr_rlc_entity_t *rb;

  if (enb_flagP) {
    LOG_E(RLC, "Tx mac_rlc_get_buffer_occupancy_ind function is not implemented for eNB LcId=%u\n", channel_idP);
    exit(1);
  }

  /* TODO: handle time a bit more properly */
  if (nr_rlc_current_time_last_frame != frameP ||
      nr_rlc_current_time_last_subframe != subframeP) {
    nr_rlc_current_time++;
    nr_rlc_current_time_last_frame = frameP;
    nr_rlc_current_time_last_subframe = subframeP;
  }

  nr_rlc_manager_lock(nr_rlc_ue_manager);
  ue = nr_rlc_manager_get_ue(nr_rlc_ue_manager, rntiP);

  switch (channel_idP) {
318
  case 1 ... 3: rb = ue->srb[channel_idP - 1]; break;
319
  case 4 ... 8: rb = ue->drb[channel_idP - 4]; break;
320 321 322 323 324 325 326 327 328 329
  default:      rb = NULL;                     break;
  }

  if (rb != NULL) {
    nr_rlc_entity_buffer_status_t buf_stat;
    rb->set_time(rb, nr_rlc_current_time);
    /* 38.321 deals with BSR values up to 81338368 bytes, after what it
     * reports '> 81338368' (table 6.1.3.1-2). Passing 100000000 is thus
     * more than enough.
     */
330
    // Fixme : Laurent reduced size for CPU saving
331 332
    // Fix me: temproary reduction meanwhile cpu cost of this computation is optimized
    buf_stat = rb->buffer_status(rb, 1000*1000);
333 334 335 336 337 338 339 340 341 342 343 344
    ret = buf_stat.status_size
        + buf_stat.retx_size
        + buf_stat.tx_size;
  } else {
    ret = 0;
  }

  nr_rlc_manager_unlock(nr_rlc_ue_manager);

  return ret;
}

Cedric Roux's avatar
Cedric Roux committed
345 346 347 348 349 350 351 352

rlc_op_status_t rlc_data_req     (const protocol_ctxt_t *const ctxt_pP,
                                  const srb_flag_t   srb_flagP,
                                  const MBMS_flag_t  MBMS_flagP,
                                  const rb_id_t      rb_idP,
                                  const mui_t        muiP,
                                  confirm_t    confirmP,
                                  sdu_size_t   sdu_sizeP,
353 354 355
                                  mem_block_t *sdu_pP,
  const uint32_t *const sourceL2Id,
  const uint32_t *const destinationL2Id
Cedric Roux's avatar
Cedric Roux committed
356 357 358 359 360 361
                                 )
{
  int rnti = ctxt_pP->rnti;
  nr_rlc_ue_t *ue;
  nr_rlc_entity_t *rb;

362
  LOG_D(RLC, "%s rnti %d srb_flag %d rb_id %ld mui %d confirm %d sdu_size %d MBMS_flag %d\n",
Cedric Roux's avatar
Cedric Roux committed
363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401
        __FUNCTION__, rnti, srb_flagP, rb_idP, muiP, confirmP, sdu_sizeP,
        MBMS_flagP);

  if (ctxt_pP->enb_flag)
    T(T_ENB_RLC_DL, T_INT(ctxt_pP->module_id),
      T_INT(ctxt_pP->rnti), T_INT(rb_idP), T_INT(sdu_sizeP));

  nr_rlc_manager_lock(nr_rlc_ue_manager);
  ue = nr_rlc_manager_get_ue(nr_rlc_ue_manager, rnti);

  rb = NULL;

  if (srb_flagP) {
    if (rb_idP >= 1 && rb_idP <= 2)
      rb = ue->srb[rb_idP - 1];
  } else {
    if (rb_idP >= 1 && rb_idP <= 5)
      rb = ue->drb[rb_idP - 1];
  }

  if (rb != NULL) {
    rb->set_time(rb, nr_rlc_current_time);
    rb->recv_sdu(rb, (char *)sdu_pP->data, sdu_sizeP, muiP);
  } else {
    LOG_E(RLC, "%s:%d:%s: fatal: SDU sent to unknown RB\n", __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }

  nr_rlc_manager_unlock(nr_rlc_ue_manager);

  free_mem_block(sdu_pP, __func__);

  return RLC_OP_STATUS_OK;
}

int rlc_module_init(int enb_flag)
{
  static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
  static int inited = 0;
402
  static int inited_ue = 0;
Cedric Roux's avatar
Cedric Roux committed
403 404 405

  if (pthread_mutex_lock(&lock)) abort();

406 407 408 409 410 411 412
  if (enb_flag == 1 && inited) {
    LOG_E(RLC, "%s:%d:%s: fatal, inited already 1\n", __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }

  if (enb_flag == 0 && inited_ue) {
    LOG_E(RLC, "%s:%d:%s: fatal, inited_ue already 1\n", __FILE__, __LINE__, __FUNCTION__);
Cedric Roux's avatar
Cedric Roux committed
413 414 415
    exit(1);
  }

416 417
  if (enb_flag == 1) inited = 1;
  if (enb_flag == 0) inited_ue = 1;
Cedric Roux's avatar
Cedric Roux committed
418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440

  nr_rlc_ue_manager = new_nr_rlc_ue_manager(enb_flag);

  if (pthread_mutex_unlock(&lock)) abort();

  return 0;
}

void rlc_util_print_hex_octets(comp_name_t componentP, unsigned char *dataP, const signed long sizeP)
{
}

static void deliver_sdu(void *_ue, nr_rlc_entity_t *entity, char *buf, int size)
{
  nr_rlc_ue_t *ue = _ue;
  int is_srb;
  int rb_id;
  protocol_ctxt_t ctx;
  mem_block_t *memblock;
  int i;
  int is_enb;

  /* is it SRB? */
Laurent THOMAS's avatar
Laurent THOMAS committed
441
  for (i = 0; i < sizeofArray(ue->srb); i++) {
Cedric Roux's avatar
Cedric Roux committed
442 443 444 445 446 447 448 449
    if (entity == ue->srb[i]) {
      is_srb = 1;
      rb_id = i+1;
      goto rb_found;
    }
  }

  /* maybe DRB? */
Laurent THOMAS's avatar
Laurent THOMAS committed
450
  for (i = 0; i < sizeofArray(ue->drb) ; i++) {
Cedric Roux's avatar
Cedric Roux committed
451 452 453 454 455 456 457 458 459 460 461 462
    if (entity == ue->drb[i]) {
      is_srb = 0;
      rb_id = i+1;
      goto rb_found;
    }
  }

  LOG_E(RLC, "%s:%d:%s: fatal, no RB found for ue %d\n",
        __FILE__, __LINE__, __FUNCTION__, ue->rnti);
  exit(1);

rb_found:
rmagueta's avatar
rmagueta committed
463
  LOG_D(RLC, "%s:%d:%s: delivering SDU (rnti %d is_srb %d rb_id %d) size %d\n",
Cedric Roux's avatar
Cedric Roux committed
464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491
        __FILE__, __LINE__, __FUNCTION__, ue->rnti, is_srb, rb_id, size);

  memblock = get_free_mem_block(size, __func__);
  if (memblock == NULL) {
    LOG_E(RLC, "%s:%d:%s: ERROR: get_free_mem_block failed\n", __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }
  memcpy(memblock->data, buf, size);

  /* unused fields? */
  ctx.instance = 0;
  ctx.frame = 0;
  ctx.subframe = 0;
  ctx.eNB_index = 0;
  ctx.configured = 1;
  ctx.brOption = 0;

  /* used fields? */
  ctx.module_id = 0;
  ctx.rnti = ue->rnti;

  is_enb = nr_rlc_manager_get_enb_flag(nr_rlc_ue_manager);
  ctx.enb_flag = is_enb;

  if (is_enb) {
    T(T_ENB_RLC_UL,
      T_INT(0 /*ctxt_pP->module_id*/),
      T_INT(ue->rnti), T_INT(rb_id), T_INT(size));
Xue Song's avatar
Xue Song committed
492 493 494 495 496

    const ngran_node_t type = RC.nrrrc[0 /*ctxt_pP->module_id*/]->node_type;
    AssertFatal(type != ngran_eNB_CU && type != ngran_ng_eNB_CU && type != ngran_gNB_CU,
                "Can't be CU, bad node type %d\n", type);

Xue Song's avatar
Xue Song committed
497 498 499 500 501 502
    // if (NODE_IS_DU(type) && is_srb == 0) {
    //   LOG_D(RLC, "call proto_agent_send_pdcp_data_ind() \n");
    //   proto_agent_send_pdcp_data_ind(&ctx, is_srb, 0, rb_id, size, memblock);
    //   return;
    // }

Xue Song's avatar
Xue Song committed
503
    if (NODE_IS_DU(type) && is_srb == 1) {
504
      MessageDef *msg;
505
      msg = itti_alloc_new_message(TASK_RLC_ENB, 0, F1AP_UL_RRC_MESSAGE);
Xue Song's avatar
Xue Song committed
506 507 508 509 510 511 512
      F1AP_UL_RRC_MESSAGE(msg).rnti = ue->rnti;
      F1AP_UL_RRC_MESSAGE(msg).srb_id = rb_id;
      F1AP_UL_RRC_MESSAGE(msg).rrc_container = (unsigned char *)buf;
      F1AP_UL_RRC_MESSAGE(msg).rrc_container_length = size;
      itti_send_msg_to_task(TASK_DU_F1, ENB_MODULE_ID_TO_INSTANCE(0 /*ctxt_pP->module_id*/), msg);
      return;
    }
Cedric Roux's avatar
Cedric Roux committed
513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612
  }

  if (!pdcp_data_ind(&ctx, is_srb, 0, rb_id, size, memblock)) {
    LOG_E(RLC, "%s:%d:%s: ERROR: pdcp_data_ind failed\n", __FILE__, __LINE__, __FUNCTION__);
    /* what to do in case of failure? for the moment: nothing */
  }
}

static void successful_delivery(void *_ue, nr_rlc_entity_t *entity, int sdu_id)
{
  nr_rlc_ue_t *ue = _ue;
  int i;
  int is_srb;
  int rb_id;
#if 0
  MessageDef *msg;
#endif
  int is_enb;

  /* is it SRB? */
  for (i = 0; i < 2; i++) {
    if (entity == ue->srb[i]) {
      is_srb = 1;
      rb_id = i+1;
      goto rb_found;
    }
  }

  /* maybe DRB? */
  for (i = 0; i < 5; i++) {
    if (entity == ue->drb[i]) {
      is_srb = 0;
      rb_id = i+1;
      goto rb_found;
    }
  }

  LOG_E(RLC, "%s:%d:%s: fatal, no RB found for ue %d\n",
        __FILE__, __LINE__, __FUNCTION__, ue->rnti);
  exit(1);

rb_found:
  LOG_D(RLC, "sdu %d was successfully delivered on %s %d\n",
        sdu_id,
        is_srb ? "SRB" : "DRB",
        rb_id);

  /* TODO: do something for DRBs? */
  if (is_srb == 0)
    return;

  is_enb = nr_rlc_manager_get_enb_flag(nr_rlc_ue_manager);
  if (!is_enb)
    return;

#if 0
  msg = itti_alloc_new_message(TASK_RLC_ENB, RLC_SDU_INDICATION);
  RLC_SDU_INDICATION(msg).rnti          = ue->rnti;
  RLC_SDU_INDICATION(msg).is_successful = 1;
  RLC_SDU_INDICATION(msg).srb_id        = rb_id;
  RLC_SDU_INDICATION(msg).message_id    = sdu_id;
  /* TODO: accept more than 1 instance? here we send to instance id 0 */
  itti_send_msg_to_task(TASK_RRC_ENB, 0, msg);
#endif
}

static void max_retx_reached(void *_ue, nr_rlc_entity_t *entity)
{
  nr_rlc_ue_t *ue = _ue;
  int i;
  int is_srb;
  int rb_id;
#if 0
  MessageDef *msg;
#endif
  int is_enb;

  /* is it SRB? */
  for (i = 0; i < 2; i++) {
    if (entity == ue->srb[i]) {
      is_srb = 1;
      rb_id = i+1;
      goto rb_found;
    }
  }

  /* maybe DRB? */
  for (i = 0; i < 5; i++) {
    if (entity == ue->drb[i]) {
      is_srb = 0;
      rb_id = i+1;
      goto rb_found;
    }
  }

  LOG_E(RLC, "%s:%d:%s: fatal, no RB found for ue %d\n",
        __FILE__, __LINE__, __FUNCTION__, ue->rnti);
  exit(1);

rb_found:
613
  LOG_E(RLC, "max RETX reached on %s %d\n",
Cedric Roux's avatar
Cedric Roux committed
614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635
        is_srb ? "SRB" : "DRB",
        rb_id);

  /* TODO: do something for DRBs? */
  if (is_srb == 0)
    return;

  is_enb = nr_rlc_manager_get_enb_flag(nr_rlc_ue_manager);
  if (!is_enb)
    return;

#if 0
  msg = itti_alloc_new_message(TASK_RLC_ENB, RLC_SDU_INDICATION);
  RLC_SDU_INDICATION(msg).rnti          = ue->rnti;
  RLC_SDU_INDICATION(msg).is_successful = 0;
  RLC_SDU_INDICATION(msg).srb_id        = rb_id;
  RLC_SDU_INDICATION(msg).message_id    = -1;
  /* TODO: accept more than 1 instance? here we send to instance id 0 */
  itti_send_msg_to_task(TASK_RRC_ENB, 0, msg);
#endif
}

636
static void add_rlc_srb(int rnti, struct NR_SRB_ToAddMod *s, NR_RLC_BearerConfig_t *rlc_BearerConfig)
Cedric Roux's avatar
Cedric Roux committed
637 638 639 640
{
  nr_rlc_entity_t            *nr_rlc_am;
  nr_rlc_ue_t                *ue;

641 642
  struct NR_RLC_Config *r = rlc_BearerConfig->rlc_Config;
  struct NR_LogicalChannelConfig *l = rlc_BearerConfig->mac_LogicalChannelConfig;
Cedric Roux's avatar
Cedric Roux committed
643
  int srb_id = s->srb_Identity;
644
  int channel_id = rlc_BearerConfig->logicalChannelIdentity;
Cedric Roux's avatar
Cedric Roux committed
645 646 647 648 649 650 651 652 653 654
  int logical_channel_group;

  int t_status_prohibit;
  int t_poll_retransmit;
  int poll_pdu;
  int poll_byte;
  int max_retx_threshold;
  int t_reassembly;
  int sn_field_length;

rmagueta's avatar
rmagueta committed
655
  LOG_D(RLC,"Trying to add SRB %d\n",srb_id);
656
  if (srb_id != 1 && srb_id != 2) {
Cedric Roux's avatar
Cedric Roux committed
657
    LOG_E(RLC, "%s:%d:%s: fatal, bad srb id %d\n",
658
        __FILE__, __LINE__, __FUNCTION__, srb_id);
Cedric Roux's avatar
Cedric Roux committed
659 660 661
    exit(1);
  }

662 663 664 665 666 667
  if (channel_id != srb_id) {
    LOG_E(RLC, "%s:%d:%s: todo, remove this limitation\n",
          __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }

668
  logical_channel_group = *l->ul_SpecificParameters->logicalChannelGroup;
Cedric Roux's avatar
Cedric Roux committed
669 670

  /* TODO: accept other values? */
671
  if (logical_channel_group != 0) {
Cedric Roux's avatar
Cedric Roux committed
672 673 674 675 676
    LOG_E(RLC, "%s:%d:%s: fatal error\n", __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }

  switch (r->present) {
677 678 679 680
  case NR_RLC_Config_PR_am: {
    struct NR_RLC_Config__am *am;
    am = r->choice.am;
    t_reassembly       = decode_t_reassembly(am->dl_AM_RLC.t_Reassembly);
Cedric Roux's avatar
Cedric Roux committed
681 682 683 684 685
    t_status_prohibit  = decode_t_status_prohibit(am->dl_AM_RLC.t_StatusProhibit);
    t_poll_retransmit  = decode_t_poll_retransmit(am->ul_AM_RLC.t_PollRetransmit);
    poll_pdu           = decode_poll_pdu(am->ul_AM_RLC.pollPDU);
    poll_byte          = decode_poll_byte(am->ul_AM_RLC.pollByte);
    max_retx_threshold = decode_max_retx_threshold(am->ul_AM_RLC.maxRetxThreshold);
686 687 688 689 690
    if (*am->dl_AM_RLC.sn_FieldLength != *am->ul_AM_RLC.sn_FieldLength) {
      LOG_E(RLC, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
      exit(1);
    }
    sn_field_length    = decode_sn_field_length_am(*am->dl_AM_RLC.sn_FieldLength);
Cedric Roux's avatar
Cedric Roux committed
691 692 693 694 695 696 697 698 699 700
    break;
  }
  default:
    LOG_E(RLC, "%s:%d:%s: fatal error\n", __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }

  nr_rlc_manager_lock(nr_rlc_ue_manager);
  ue = nr_rlc_manager_get_ue(nr_rlc_ue_manager, rnti);
  if (ue->srb[srb_id-1] != NULL) {
701
    LOG_W(RLC, "%s:%d:%s: SRB %d already exists for UE with RNTI 0x%x, do nothing\n", __FILE__, __LINE__, __FUNCTION__, srb_id, rnti);
Cedric Roux's avatar
Cedric Roux committed
702 703 704 705 706 707 708 709 710
  } else {
    /* hack: hardcode values for NR */
    t_poll_retransmit = 45;
    t_reassembly = 35;
    t_status_prohibit = 0;
    poll_pdu = -1;
    poll_byte = -1;
    max_retx_threshold = 8;
    sn_field_length = 12;
711 712
    nr_rlc_am = new_nr_rlc_entity_am(10000000,
                                     10000000,
Cedric Roux's avatar
Cedric Roux committed
713 714 715 716 717 718 719 720 721
                                     deliver_sdu, ue,
                                     successful_delivery, ue,
                                     max_retx_reached, ue,
                                     t_poll_retransmit,
                                     t_reassembly, t_status_prohibit,
                                     poll_pdu, poll_byte, max_retx_threshold,
                                     sn_field_length);
    nr_rlc_ue_add_srb_rlc_entity(ue, srb_id, nr_rlc_am);

rmagueta's avatar
rmagueta committed
722
    LOG_D(RLC, "%s:%d:%s: added srb %d to UE with RNTI 0x%x\n", __FILE__, __LINE__, __FUNCTION__, srb_id, rnti);
Cedric Roux's avatar
Cedric Roux committed
723 724 725 726
  }
  nr_rlc_manager_unlock(nr_rlc_ue_manager);
}

727
static void add_drb_am(int rnti, struct NR_DRB_ToAddMod *s, NR_RLC_BearerConfig_t *rlc_BearerConfig)
Cedric Roux's avatar
Cedric Roux committed
728 729 730 731
{
  nr_rlc_entity_t            *nr_rlc_am;
  nr_rlc_ue_t                *ue;

732 733
  struct NR_RLC_Config *r = rlc_BearerConfig->rlc_Config;
  struct NR_LogicalChannelConfig *l = rlc_BearerConfig->mac_LogicalChannelConfig;
Cedric Roux's avatar
Cedric Roux committed
734
  int drb_id = s->drb_Identity;
735
  int channel_id = rlc_BearerConfig->logicalChannelIdentity;
Cedric Roux's avatar
Cedric Roux committed
736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751
  int logical_channel_group;

  int t_status_prohibit;
  int t_poll_retransmit;
  int poll_pdu;
  int poll_byte;
  int max_retx_threshold;
  int t_reassembly;
  int sn_field_length;

  if (!(drb_id >= 1 && drb_id <= 5)) {
    LOG_E(RLC, "%s:%d:%s: fatal, bad srb id %d\n",
          __FILE__, __LINE__, __FUNCTION__, drb_id);
    exit(1);
  }

752
  if (channel_id != drb_id + 3) {
Cedric Roux's avatar
Cedric Roux committed
753 754 755 756 757 758 759 760 761 762
    LOG_E(RLC, "%s:%d:%s: todo, remove this limitation\n",
          __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }

  logical_channel_group = *l->ul_SpecificParameters->logicalChannelGroup;

  /* TODO: accept other values? */
  if (logical_channel_group != 1) {
    LOG_E(RLC, "%s:%d:%s: fatal error\n", __FILE__, __LINE__, __FUNCTION__);
763
    //exit(1);
Cedric Roux's avatar
Cedric Roux committed
764 765 766
  }

  switch (r->present) {
767 768 769
  case NR_RLC_Config_PR_am: {
    struct NR_RLC_Config__am *am;
    am = r->choice.am;
770
    t_reassembly       = decode_t_reassembly(am->dl_AM_RLC.t_Reassembly);
Cedric Roux's avatar
Cedric Roux committed
771 772 773 774 775
    t_status_prohibit  = decode_t_status_prohibit(am->dl_AM_RLC.t_StatusProhibit);
    t_poll_retransmit  = decode_t_poll_retransmit(am->ul_AM_RLC.t_PollRetransmit);
    poll_pdu           = decode_poll_pdu(am->ul_AM_RLC.pollPDU);
    poll_byte          = decode_poll_byte(am->ul_AM_RLC.pollByte);
    max_retx_threshold = decode_max_retx_threshold(am->ul_AM_RLC.maxRetxThreshold);
776 777 778 779 780
    if (*am->dl_AM_RLC.sn_FieldLength != *am->ul_AM_RLC.sn_FieldLength) {
      LOG_E(RLC, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
      exit(1);
    }
    sn_field_length    = decode_sn_field_length_am(*am->dl_AM_RLC.sn_FieldLength);
Cedric Roux's avatar
Cedric Roux committed
781 782 783 784 785 786 787 788 789 790
    break;
  }
  default:
    LOG_E(RLC, "%s:%d:%s: fatal error\n", __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }

  nr_rlc_manager_lock(nr_rlc_ue_manager);
  ue = nr_rlc_manager_get_ue(nr_rlc_ue_manager, rnti);
  if (ue->drb[drb_id-1] != NULL) {
791
    LOG_W(RLC, "%s:%d:%s: DRB %d already exists for UE with RNTI %d, do nothing\n", __FILE__, __LINE__, __FUNCTION__, drb_id, rnti);
Cedric Roux's avatar
Cedric Roux committed
792
  } else {
793 794
    nr_rlc_am = new_nr_rlc_entity_am(10000000,
                                     10000000,
Cedric Roux's avatar
Cedric Roux committed
795 796 797 798 799 800 801 802 803
                                     deliver_sdu, ue,
                                     successful_delivery, ue,
                                     max_retx_reached, ue,
                                     t_poll_retransmit,
                                     t_reassembly, t_status_prohibit,
                                     poll_pdu, poll_byte, max_retx_threshold,
                                     sn_field_length);
    nr_rlc_ue_add_drb_rlc_entity(ue, drb_id, nr_rlc_am);

804
    LOG_D(RLC, "%s:%d:%s: added drb %d to UE with RNTI 0x%x\n", __FILE__, __LINE__, __FUNCTION__, drb_id, rnti);
Cedric Roux's avatar
Cedric Roux committed
805 806 807
  }
  nr_rlc_manager_unlock(nr_rlc_ue_manager);
}
808

809
static void add_drb_um(int rnti, struct NR_DRB_ToAddMod *s, NR_RLC_BearerConfig_t *rlc_BearerConfig)
Cedric Roux's avatar
Cedric Roux committed
810 811 812 813
{
  nr_rlc_entity_t            *nr_rlc_um;
  nr_rlc_ue_t                *ue;

814 815
  struct NR_RLC_Config *r = rlc_BearerConfig->rlc_Config;
  struct NR_LogicalChannelConfig *l = rlc_BearerConfig->mac_LogicalChannelConfig;
Cedric Roux's avatar
Cedric Roux committed
816
  int drb_id = s->drb_Identity;
817
  int channel_id = rlc_BearerConfig->logicalChannelIdentity;
Cedric Roux's avatar
Cedric Roux committed
818 819 820 821 822 823 824 825 826 827 828
  int logical_channel_group;

  int sn_field_length;
  int t_reassembly;

  if (!(drb_id >= 1 && drb_id <= 5)) {
    LOG_E(RLC, "%s:%d:%s: fatal, bad srb id %d\n",
          __FILE__, __LINE__, __FUNCTION__, drb_id);
    exit(1);
  }

829
  if (channel_id != drb_id + 3) {
Cedric Roux's avatar
Cedric Roux committed
830 831 832 833 834 835 836 837 838 839 840 841 842 843
    LOG_E(RLC, "%s:%d:%s: todo, remove this limitation\n",
          __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }

  logical_channel_group = *l->ul_SpecificParameters->logicalChannelGroup;

  /* TODO: accept other values? */
  if (logical_channel_group != 1) {
    LOG_E(RLC, "%s:%d:%s: fatal error\n", __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }

  switch (r->present) {
844 845 846
  case NR_RLC_Config_PR_um_Bi_Directional: {
    struct NR_RLC_Config__um_Bi_Directional *um;
    um = r->choice.um_Bi_Directional;
Cedric Roux's avatar
Cedric Roux committed
847
    t_reassembly = decode_t_reassembly(um->dl_UM_RLC.t_Reassembly);
848
    if (*um->dl_UM_RLC.sn_FieldLength != *um->ul_UM_RLC.sn_FieldLength) {
Cedric Roux's avatar
Cedric Roux committed
849 850 851
      LOG_E(RLC, "%s:%d:%s: fatal\n", __FILE__, __LINE__, __FUNCTION__);
      exit(1);
    }
Cedric Roux's avatar
Cedric Roux committed
852
    sn_field_length = decode_sn_field_length_um(*um->dl_UM_RLC.sn_FieldLength);
Cedric Roux's avatar
Cedric Roux committed
853 854 855 856 857 858 859 860 861 862
    break;
  }
  default:
    LOG_E(RLC, "%s:%d:%s: fatal error\n", __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }

  nr_rlc_manager_lock(nr_rlc_ue_manager);
  ue = nr_rlc_manager_get_ue(nr_rlc_ue_manager, rnti);
  if (ue->drb[drb_id-1] != NULL) {
863
    LOG_W(RLC, "DEBUG add_drb_um %s:%d:%s: warning DRB %d already exist for ue %d, do nothing\n", __FILE__, __LINE__, __FUNCTION__, drb_id, rnti);
Cedric Roux's avatar
Cedric Roux committed
864
  } else {
865 866
    nr_rlc_um = new_nr_rlc_entity_um(100000000,
                                     100000000,
Cedric Roux's avatar
Cedric Roux committed
867 868 869 870 871
                                     deliver_sdu, ue,
                                     t_reassembly,
                                     sn_field_length);
    nr_rlc_ue_add_drb_rlc_entity(ue, drb_id, nr_rlc_um);

872
    LOG_D(RLC, "%s:%d:%s: added drb %d to UE with RNTI 0x%x\n", __FILE__, __LINE__, __FUNCTION__, drb_id, rnti);
Cedric Roux's avatar
Cedric Roux committed
873 874 875 876
  }
  nr_rlc_manager_unlock(nr_rlc_ue_manager);
}

Cedric Roux's avatar
Cedric Roux committed
877
static void add_drb(int rnti, struct NR_DRB_ToAddMod *s, struct NR_RLC_BearerConfig *rlc_BearerConfig)
Cedric Roux's avatar
Cedric Roux committed
878
{
879 880 881
  switch (rlc_BearerConfig->rlc_Config->present) {
  case NR_RLC_Config_PR_am:
    add_drb_am(rnti, s, rlc_BearerConfig);
Cedric Roux's avatar
Cedric Roux committed
882
    break;
883 884
  case NR_RLC_Config_PR_um_Bi_Directional:
    add_drb_um(rnti, s, rlc_BearerConfig);
Cedric Roux's avatar
Cedric Roux committed
885 886 887 888 889 890
    break;
  default:
    LOG_E(RLC, "%s:%d:%s: fatal: unhandled DRB type\n",
          __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }
891
  LOG_I(RLC, "%s:%s:%d: added DRB to UE with RNTI 0x%x\n", __FILE__, __FUNCTION__, __LINE__, rnti);
Cedric Roux's avatar
Cedric Roux committed
892 893
}

894
/* Dummy function due to dependency from LTE libraries */
Cedric Roux's avatar
Cedric Roux committed
895 896 897
rlc_op_status_t rrc_rlc_config_asn1_req (const protocol_ctxt_t   * const ctxt_pP,
    const LTE_SRB_ToAddModList_t   * const srb2add_listP,
    const LTE_DRB_ToAddModList_t   * const drb2add_listP,
898 899 900 901
    const LTE_DRB_ToReleaseList_t  * const drb2release_listP,
    const LTE_PMCH_InfoList_r9_t * const pmch_InfoList_r9_pP,
    const uint32_t sourceL2Id,
    const uint32_t destinationL2Id)
Cedric Roux's avatar
Cedric Roux committed
902
{
903
  return 0;
Cedric Roux's avatar
Cedric Roux committed
904 905
}

906
rlc_op_status_t nr_rrc_rlc_config_asn1_req (const protocol_ctxt_t   * const ctxt_pP,
907
    const NR_SRB_ToAddModList_t   * const srb2add_listP,
908 909 910
    const NR_DRB_ToAddModList_t   * const drb2add_listP,
    const NR_DRB_ToReleaseList_t  * const drb2release_listP,
    const LTE_PMCH_InfoList_r9_t * const pmch_InfoList_r9_pP,
911
    struct NR_CellGroupConfig__rlc_BearerToAddModList *rlc_bearer2add_list)
912 913
{
  int rnti = ctxt_pP->rnti;
914 915
  int i;
  int j;
916 917 918 919

  if (/*ctxt_pP->enb_flag != 1 ||*/ ctxt_pP->module_id != 0 /*||
      ctxt_pP->instance != 0 || ctxt_pP->eNB_index != 0 ||
      ctxt_pP->configured != 1 || ctxt_pP->brOption != 0 */) {
920
    LOG_E(RLC, "%s: ctxt_pP not handled (%d %d %ld %d %d %d)\n", __FUNCTION__,
921 922 923 924 925 926 927 928 929 930 931 932
          ctxt_pP->enb_flag , ctxt_pP->module_id, ctxt_pP->instance,
          ctxt_pP->eNB_index, ctxt_pP->configured, ctxt_pP->brOption);
    exit(1);
  }

  if (pmch_InfoList_r9_pP != NULL) {
    LOG_E(RLC, "%s: pmch_InfoList_r9_pP not handled\n", __FUNCTION__);
    exit(1);
  }

  if (drb2release_listP != NULL) {
    LOG_E(RLC, "%s:%d:%s: TODO\n", __FILE__, __LINE__, __FUNCTION__);
933
    //exit(1);
934 935 936 937
  }

  if (srb2add_listP != NULL) {
    for (i = 0; i < srb2add_listP->list.count; i++) {
938
      if (rlc_bearer2add_list != NULL) {
rmagueta's avatar
rmagueta committed
939 940 941 942 943 944
        for(j = 0; j < rlc_bearer2add_list->list.count; j++){
          if(rlc_bearer2add_list->list.array[j]->servedRadioBearer != NULL){
            if(rlc_bearer2add_list->list.array[j]->servedRadioBearer->present == NR_RLC_BearerConfig__servedRadioBearer_PR_srb_Identity){
              if(srb2add_listP->list.array[i]->srb_Identity == rlc_bearer2add_list->list.array[j]->servedRadioBearer->choice.srb_Identity){
                add_rlc_srb(rnti, srb2add_listP->list.array[i], rlc_bearer2add_list->list.array[j]);
              }
945
            }
rmagueta's avatar
rmagueta committed
946
          }
947 948 949
        }
      }

950 951 952
    }
  }

Fang-WANG's avatar
Fang-WANG committed
953
  if ((drb2add_listP != NULL) && (rlc_bearer2add_list != NULL)) {
954
    for (i = 0; i < drb2add_listP->list.count; i++) {
955
      if (rlc_bearer2add_list != NULL) {
956 957 958 959 960 961 962 963 964
      for(j = 0; j < rlc_bearer2add_list->list.count; j++){
        if(rlc_bearer2add_list->list.array[j]->servedRadioBearer != NULL){
          if(rlc_bearer2add_list->list.array[j]->servedRadioBearer->present == NR_RLC_BearerConfig__servedRadioBearer_PR_drb_Identity){
            if(drb2add_listP->list.array[i]->drb_Identity == rlc_bearer2add_list->list.array[j]->servedRadioBearer->choice.drb_Identity){
              add_drb(rnti, drb2add_listP->list.array[i], rlc_bearer2add_list->list.array[j]);
            }
          }  
        }
      }
965
      }
966 967 968 969 970 971
    }
  }

  return RLC_OP_STATUS_OK;
}

Cedric Roux's avatar
Cedric Roux committed
972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996
rlc_op_status_t rrc_rlc_config_req   (
  const protocol_ctxt_t* const ctxt_pP,
  const srb_flag_t      srb_flagP,
  const MBMS_flag_t     mbms_flagP,
  const config_action_t actionP,
  const rb_id_t         rb_idP,
  const rlc_info_t      rlc_infoP)
{
  nr_rlc_ue_t *ue;
  int      i;

  if (mbms_flagP) {
    LOG_E(RLC, "%s:%d:%s: todo (MBMS NOT supported)\n", __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }
  if (actionP != CONFIG_ACTION_REMOVE) {
    LOG_E(RLC, "%s:%d:%s: todo (only CONFIG_ACTION_REMOVE supported)\n", __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }
  if (ctxt_pP->module_id) {
    LOG_E(RLC, "%s:%d:%s: todo (only module_id 0 supported)\n", __FILE__, __LINE__, __FUNCTION__);
    exit(1);
  }
  if ((srb_flagP && !(rb_idP >= 1 && rb_idP <= 2)) ||
      (!srb_flagP && !(rb_idP >= 1 && rb_idP <= 5))) {
997
    LOG_E(RLC, "%s:%d:%s: bad rb_id (%ld) (is_srb %d)\n", __FILE__, __LINE__, __FUNCTION__, rb_idP, srb_flagP);
Cedric Roux's avatar
Cedric Roux committed
998 999 1000
    exit(1);
  }
  nr_rlc_manager_lock(nr_rlc_ue_manager);
1001
  LOG_D(RLC, "%s:%d:%s: remove rb %ld (is_srb %d) for UE RNTI %x\n", __FILE__, __LINE__, __FUNCTION__, rb_idP, srb_flagP, ctxt_pP->rnti);
Cedric Roux's avatar
Cedric Roux committed
1002 1003 1004 1005 1006 1007
  ue = nr_rlc_manager_get_ue(nr_rlc_ue_manager, ctxt_pP->rnti);
  if (srb_flagP) {
    if (ue->srb[rb_idP-1] != NULL) {
      ue->srb[rb_idP-1]->delete(ue->srb[rb_idP-1]);
      ue->srb[rb_idP-1] = NULL;
    } else
1008
      LOG_W(RLC, "removing non allocated SRB %ld, do nothing\n", rb_idP);
Cedric Roux's avatar
Cedric Roux committed
1009 1010 1011 1012 1013
  } else {
    if (ue->drb[rb_idP-1] != NULL) {
      ue->drb[rb_idP-1]->delete(ue->drb[rb_idP-1]);
      ue->drb[rb_idP-1] = NULL;
    } else
1014
      LOG_W(RLC, "removing non allocated DRB %ld, do nothing\n", rb_idP);
Cedric Roux's avatar
Cedric Roux committed
1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044
  }
  /* remove UE if it has no more RB configured */
  for (i = 0; i < 2; i++)
    if (ue->srb[i] != NULL)
      break;
  if (i == 2) {
    for (i = 0; i < 5; i++)
      if (ue->drb[i] != NULL)
        break;
    if (i == 5)
      nr_rlc_manager_remove_ue(nr_rlc_ue_manager, ctxt_pP->rnti);
  }
  nr_rlc_manager_unlock(nr_rlc_ue_manager);
  return RLC_OP_STATUS_OK;
}

void rrc_rlc_register_rrc (rrc_data_ind_cb_t rrc_data_indP, rrc_data_conf_cb_t rrc_data_confP)
{
  /* nothing to do */
}

rlc_op_status_t rrc_rlc_remove_ue (const protocol_ctxt_t* const x)
{
  LOG_D(RLC, "%s:%d:%s: remove UE %d\n", __FILE__, __LINE__, __FUNCTION__, x->rnti);
  nr_rlc_manager_lock(nr_rlc_ue_manager);
  nr_rlc_manager_remove_ue(nr_rlc_ue_manager, x->rnti);
  nr_rlc_manager_unlock(nr_rlc_ue_manager);

  return RLC_OP_STATUS_OK;
}
1045 1046 1047 1048

void nr_rlc_tick(int frame, int subframe)
{
  if (frame != nr_rlc_current_time_last_frame ||
1049 1050 1051
      subframe != nr_rlc_current_time_last_subframe) {
    nr_rlc_current_time_last_frame = frame;
    nr_rlc_current_time_last_subframe = subframe;
1052
    nr_rlc_current_time++;
1053
  }
1054
}
1055 1056 1057 1058 1059 1060 1061 1062 1063 1064

/* This is a hack, to compile the gNB.
 * TODO: remove it. The solution is to cleanup cmake_targets/CMakeLists.txt
 */
void rlc_tick(int a, int b)
{
  LOG_E(RLC, "%s:%d:%s: this code should not be reached\n",
        __FILE__, __LINE__, __FUNCTION__);
  exit(1);
}