Deleted the rlog folder
[o-du/l2.git] / src / du_app / du_ue_mgr.c
index 91ad96c..53037ee 100644 (file)
 #   See the License for the specific language governing permissions and        #
 #   limitations under the License.                                             #
 ################################################################################
-*******************************************************************************/
- /* This file contains UE management handling functionality for DU APP */
-#include "du_ue_mgr.h"
+ *******************************************************************************/
+/* This file contains UE management handling functionality for DU APP */
+#include "common_def.h"
+#include "lrg.h"
+#include "lrg.x"
+#include "ckw.h"
+#include "ckw.x"
+#include "kwu.h"
+#include "kwu.x"
+#include "lkw.h"
+#include "lkw.x"
+#include "legtp.h"
+#include "du_app_mac_inf.h"
+#include "du_app_rlc_inf.h"
 #include "du_cfg.h"
+#include "du_utils.h"
+#include "du_mgr.h"
+#include "du_f1ap_msg_hdl.h"
+#include "du_ue_mgr.h"
+
+DuMacDlCcchInd packMacDlCcchIndOpts[] =
+{
+   packMacDlCcchInd,           /* Loose coupling */
+   MacProcDlCcchInd,           /* TIght coupling */
+   packMacDlCcchInd            /* Light weight-loose coupling */
+};
+
+DuMacUeCreateReq packMacUeCreateReqOpts[] =
+{
+   packDuMacUeCreateReq,       /* Loose coupling */
+   MacProcUeCreateReq,         /* TIght coupling */
+   packDuMacUeCreateReq        /* Light weight-loose coupling */
+};
+
+DuRlcUeCreateReq packRlcUeCreateReqOpts[] =
+{
+   packDuRlcUeCreateReq,       /* Loose coupling */
+   RlcProcUeCreateReq,         /* TIght coupling */
+   packDuRlcUeCreateReq        /* Light weight-loose coupling */
+};
+
+DuDlRrcMsgToRlcFunc duSendDlRrcMsgToRlcOpts[] =
+{
+   packDlRrcMsgToRlc,          /* Loose coupling */ 
+   RlcProcDlRrcMsgTransfer,    /* Tight coupling */
+   packDlRrcMsgToRlc           /* Light weight-loose coupling */
+};
+
+DuRlcUeReconfigReq packRlcUeReconfigReqOpts[] =
+{
+   packDuRlcUeReconfigReq,     /* Loose coupling */
+   RlcProcUeReconfigReq,       /* TIght coupling */
+   packDuRlcUeReconfigReq      /* Light weight-loose coupling */
+};
+
+DuMacUeReconfigReq packMacUeReconfigReqOpts[] =
+{
+   packDuMacUeReconfigReq,     /* Loose coupling */
+   MacProcUeReconfigReq,       /* TIght coupling */
+   packDuMacUeReconfigReq      /* Light weight-loose coupling */
+};
+
+DuRlcDlUserDataToRlcFunc duSendRlcDlUserDataToRlcOpts[] =
+{
+   packRlcDlUserDataToRlc,        /* Loose coupling */ 
+   RlcProcDlUserDataTransfer,  /* Tight coupling */
+   packRlcDlUserDataToRlc         /* Light weight-loose coupling */
+};
+
+/*******************************************************************
+ *
+ * @brief Function to fillDlUserDataInfo
+ *
+ * @details
+ *
+ *    Function : fillDlUserDataInfo
+ *
+ *    Functionality:
+ *      Function to fillDlUserDataInfo
+ *
+ * @params[in] teId,
+ *             dlDataMsgInfo
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+
+uint8_t fillDlUserDataInfo(uint32_t teId, RlcDlUserDataInfo *dlDataMsgInfo)
+{
+   uint8_t drbIdx;
+
+   for(drbIdx = 0; drbIdx < duCb.numDrb; drbIdx++)
+   {
+      if(duCb.upTnlCfg[drbIdx] && (duCb.upTnlCfg[drbIdx]->tnlCfg1 != NULLP))
+      {
+        if(duCb.upTnlCfg[drbIdx]->tnlCfg1->teId == teId)
+       {
+          dlDataMsgInfo->cellId = duCb.upTnlCfg[drbIdx]->cellId;
+          dlDataMsgInfo->ueIdx = duCb.upTnlCfg[drbIdx]->ueIdx;
+           dlDataMsgInfo->rbId = duCb.upTnlCfg[drbIdx]->drbId;
+          return ROK;
+       }
+      }
+   }
+   return RFAILED;
+}
+
+ /*******************************************************************
+ *
+ * @brief Build and Send DL Data Message transfer to RLC
+ *
+ * @details
+ *
+ *    Function : duBuildAndSendDlUserDataToRlc
+ *
+ *    Functionality:
+ *      Build and Send DL Data Message transfer to RLC
+ *
+ * @params[in] Cell ID
+ *             UE Index
+ *             Logical Channgel ID
+ *             RRC Message
+ *             RRC Message Length
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+
+uint8_t duBuildAndSendDlUserDataToRlc(uint16_t msgLen, EgtpMsg *egtpMsg)
+{
+   uint8_t ret = RFAILED;
+   Pst     pst;
+   RlcDlUserDataInfo *dlDataMsgInfo = NULLP;
+
+   DU_ALLOC_SHRABL_BUF(dlDataMsgInfo, sizeof(RlcDlUserDataInfo));
+   if(!dlDataMsgInfo)
+   {
+      DU_LOG("\nERROR  -->  DU_APP : Memory allocation failed for dlDataMsgInfo in duHdlEgtpDlData()");
+      return RFAILED;
+   }
+   memset(dlDataMsgInfo, 0, sizeof(RlcDlUserDataInfo));
+   if(ODU_GET_MSG_BUF(DU_APP_MEM_REGION, DU_POOL, &dlDataMsgInfo->dlMsg) != ROK)
+   {
+      DU_LOG("\nERROR  -->  DU_APP : Memory allocation failed for dlMsg in duHdlEgtpDlData()");
+      DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, dlDataMsgInfo, sizeof(RlcDlUserDataInfo));
+      return RFAILED;
+   }
+   dlDataMsgInfo->dlMsg = egtpMsg->msg;
+   dlDataMsgInfo->msgLen = msgLen;
+
+   /* Filling DL DATA Msg Info */
+   if(fillDlUserDataInfo(egtpMsg->msgHdr.teId, dlDataMsgInfo) == ROK)
+   {
+      /* Filling post structure and sending msg */ 
+      FILL_PST_DUAPP_TO_RLC(pst, RLC_DL_INST, EVENT_DL_USER_DATA_TRANS_TO_RLC);
+      DU_LOG("\nDEBUG  -->  DU_APP : Sending User Data Msg to RLC \n");
+      ret = (*duSendRlcDlUserDataToRlcOpts[pst.selector])(&pst, dlDataMsgInfo);
+   }
+   if(ret != ROK)
+   {
+      DU_LOG("\nERROR  -->  DU_APP : Failed to send User Data to RLC in duHdlEgtpDlData()");
+      DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, dlDataMsgInfo->dlMsg, msgLen);
+      DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, dlDataMsgInfo, sizeof(RlcDlUserDataInfo));
+   }
+   return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Handles EGTP data from CU 
+ *
+ * @details
+ *
+ *    Function : duHdlEgtpData
+ *
+ *    Functionality: 
+ *      Processes EGTP header and sends data to RLC
+ *
+ * @params[in]  Pointer to EGTP Message 
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t duHdlEgtpDlData(EgtpMsg  *egtpMsg)
+{
+   uint16_t msgLen = 0;
+   DU_LOG("\nDEBUG  --> DU_APP : Processing DL data in duHdlEgtpDlData()");
+   
+   if(!egtpMsg->msg)
+   {
+      DU_LOG("\nERROR  -->  DU_APP : Recevied Dl Data is NULLP in duHdlEgtpDlData()");
+      return RFAILED;
+   }
+   ODU_GET_MSG_LEN(egtpMsg->msg, (MsgLen *)&msgLen);
+   if(duBuildAndSendDlUserDataToRlc(msgLen, egtpMsg) != ROK)
+   {
+      DU_LOG("\nERROR  -->  DU_APP : Failed to build DL USer Data in duHdlEgtpDlData()");
+      DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, egtpMsg->msg, msgLen);
+      return RFAILED;
+   }
+   return ROK;
+}
+
+/******************************************************************
+ *
+ * @brief Builds and Sends DL CCCH Ind to MAC
+ *
+ * @details
+ *
+ *    Function : duBuildAndSendDlCcchInd 
+ *
+ *    Functionality: Builds and sends DL CCCH Ind Msg to MAC
+ *
+ * @params[in] dlCcchMsg - uint8_t*
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t duBuildAndSendDlCcchInd(uint16_t *cellId, uint16_t *crnti, \
+      DlCcchMsgType msgType, uint16_t dlCcchMsgSize, uint8_t *dlCcchMsg)
+{
+   uint8_t  ret                  = ROK;
+   uint16_t idx2;
+   DlCcchIndInfo *dlCcchIndInfo = NULLP;
+   Pst pst;
+
+   DU_LOG("\nDEBUG   -->  DU APP : Building and Sending DL CCCH Ind to MAC");
+
+   DU_ALLOC_SHRABL_BUF(dlCcchIndInfo, sizeof(DlCcchIndInfo));
+
+   if(!dlCcchIndInfo)
+   {
+      DU_LOG("\nERROR  -->  DU APP : Memory alloc failed while building DL CCCH Ind");
+      return RFAILED;
+   }
+
+   dlCcchIndInfo->cellId = *cellId;
+   dlCcchIndInfo->crnti = *crnti;
+   dlCcchIndInfo->msgType = msgType;
+   dlCcchIndInfo->dlCcchMsgLen = dlCcchMsgSize;
+
+   DU_ALLOC_SHRABL_BUF(dlCcchIndInfo->dlCcchMsg, dlCcchIndInfo->dlCcchMsgLen);
+   if(!dlCcchIndInfo->dlCcchMsg)
+   {
+      DU_LOG("\nERROR  -->  DU APP : Memory alloc failed while building DL CCCH Ind");
+      DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, dlCcchIndInfo, sizeof(DlCcchIndInfo));
+      return RFAILED;
+   }
+   for(idx2 = 0; idx2 < dlCcchIndInfo->dlCcchMsgLen; idx2++)
+   {
+      dlCcchIndInfo->dlCcchMsg[idx2] = dlCcchMsg[idx2];
+   }
+   DU_FREE(dlCcchMsg, dlCcchMsgSize);
+
+   /* Fill Pst */
+   FILL_PST_DUAPP_TO_MAC(pst, EVENT_MAC_DL_CCCH_IND);
+   ret = (*packMacDlCcchIndOpts[pst.selector])(&pst, dlCcchIndInfo);
+   if(ret != ROK)
+   {
+      DU_LOG("\nERROR  -->  DU_APP : Failure in sending DL CCCH to MAC");
+      DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, dlCcchIndInfo->dlCcchMsg,\
+           dlCcchIndInfo->dlCcchMsgLen);
+      DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, dlCcchIndInfo, \
+           sizeof(DlCcchIndInfo));
+      ret = RFAILED; 
+   }
+
+   return ret;
+
+}
+
+/*******************************************************************
+ *
+ * @brief Build and Send DL RRC Message transfer to RLC
+ *
+ * @details
+ *
+ *    Function : duBuildAndSendDlRrcMsgToRlc
+ *
+ *    Functionality:
+ *      Build and Send DL RRC Message transfer to RLC
+ *
+ * @params[in] Cell ID
+ *             UE Index
+ *             Logical Channgel ID
+ *             RRC Message
+ *             RRC Message Length
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t duBuildAndSendDlRrcMsgToRlc(uint16_t cellId, RlcUeCfg ueCfg, F1DlRrcMsg *f1DlRrcMsg)
+{
+   Pst     pst;
+   uint8_t ret;
+   uint8_t lcIdx;
+   RlcDlRrcMsgInfo  *dlRrcMsgInfo = NULLP;
+
+   if(!f1DlRrcMsg)
+   {
+      DU_LOG("\nERROR  -->  DU APP : Received Dl RRC Msg is NULL at duBuildAndSendDlRrcMsgToRlc()");
+      return RFAILED;
+   }
+
+   DU_ALLOC_SHRABL_BUF(dlRrcMsgInfo, sizeof(RlcDlRrcMsgInfo));
+   if(!dlRrcMsgInfo)
+   {
+      DU_LOG("\nERROR  -->  DU APP : Memory allocation failed for dlRrcMsgInfo in \
+         duBuildAndSendDlRrcMsgToRlc");
+      DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, f1DlRrcMsg->rrcMsgPdu, f1DlRrcMsg->rrcMsgSize);
+      return RFAILED;
+   }
+   
+   /* Filling up the RRC msg info */
+   dlRrcMsgInfo->cellId = cellId;
+   dlRrcMsgInfo->ueIdx = ueCfg.ueIdx;
+   for(lcIdx = 0; lcIdx <= MAX_NUM_LC; lcIdx++)
+   {
+      if(ueCfg.rlcLcCfg[lcIdx].lcId == f1DlRrcMsg->srbId)
+      {
+         dlRrcMsgInfo->rbType = ueCfg.rlcLcCfg[lcIdx].rbType;
+         dlRrcMsgInfo->rbId   = ueCfg.rlcLcCfg[lcIdx].rbId;
+        dlRrcMsgInfo->lcType = ueCfg.rlcLcCfg[lcIdx].lcType;
+         dlRrcMsgInfo->lcId   = ueCfg.rlcLcCfg[lcIdx].lcId;
+        break;
+      }
+   }
+   dlRrcMsgInfo->execDup = f1DlRrcMsg->execDup;
+   dlRrcMsgInfo->deliveryStaRpt = f1DlRrcMsg->deliveryStatRpt;
+   dlRrcMsgInfo->msgLen = f1DlRrcMsg->rrcMsgSize;
+   dlRrcMsgInfo->rrcMsg = f1DlRrcMsg->rrcMsgPdu;
+
+   /* Filling post structure and sending msg */ 
+   FILL_PST_DUAPP_TO_RLC(pst, RLC_DL_INST, EVENT_DL_RRC_MSG_TRANS_TO_RLC);
+   DU_LOG("\nDEBUG   -->  DU_APP: Sending Dl RRC Msg to RLC \n");
+   ret = (*duSendDlRrcMsgToRlcOpts[pst.selector])(&pst, dlRrcMsgInfo);
+   if(ret != ROK)
+   {
+      DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, f1DlRrcMsg->rrcMsgPdu, f1DlRrcMsg->rrcMsgSize);
+      DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, dlRrcMsgInfo, sizeof(RlcDlRrcMsgInfo));
+      return RFAILED;
+   }
+
+   return ROK;
+} 
+
+
+
+/******************************************************************
+ *
+ * @brief Process DL RRC Msg recevied from F1AP
+ *
+ * @details
+ *
+ *    Function : duProcDlRrcMsg
+ *
+ *    Functionality: Process DL RRC Msg recevied from F1AP
+ *
+ * @params[in] dlCcchMsg - uint8_t*
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+
+uint8_t duProcDlRrcMsg(F1DlRrcMsg *dlRrcMsg)
+{
+   uint8_t ueIdx, ret;
+   uint16_t crnti, cellId, cellIdx;
+   bool ueCcchCtxtFound = false;
+   bool ueFound = false;
+
+   ret = ROK;
+
+   if(dlRrcMsg->srbId == SRB0_LCID) //RRC connection setup
+   {
+      for(ueIdx=0; ueIdx<duCb.numUe; ueIdx++)
+      {
+         if(dlRrcMsg->gnbDuUeF1apId == duCb.ueCcchCtxt[ueIdx].gnbDuUeF1apId)
+         {
+           ueCcchCtxtFound = true;
+            crnti  = duCb.ueCcchCtxt[ueIdx].crnti;
+            cellId = duCb.ueCcchCtxt[ueIdx].cellId;
+            break;
+         }
+      }
+   }
+   if(ueCcchCtxtFound)
+   {
+      ret = duBuildAndSendDlCcchInd(&cellId, &crnti, RRC_SETUP, dlRrcMsg->rrcMsgSize, dlRrcMsg->rrcMsgPdu);
+      if(ret == RFAILED)
+      {
+        DU_LOG("\nERROR  -->  DU APP : Failed to build DlCcch Ind at procDlRrcMsgTrans()");
+      }
+      else
+      {
+        if(duCb.actvCellLst[cellId-1]->numActvUes < MAX_NUM_UE)
+        {
+           ret = duCreateUeCb(&duCb.ueCcchCtxt[ueIdx], dlRrcMsg->gnbCuUeF1apId);
+           if(ret == RFAILED)
+           {
+              DU_LOG("\nERROR  -->  DU APP : Failed to createUeCb for cellId [%d] at procDlRrcMsgTrans()", \
+                    duCb.ueCcchCtxt[ueIdx].cellId);
+           }
+        }
+        else
+        {
+           DU_LOG("\nERROR   -->  DU_APP: Max Active UEs has reached at procDlRrcMsgTrans()");
+           ret = RFAILED;
+        }
+      }
+   }
+   else
+   {
+      for(cellIdx = 0; cellIdx < MAX_NUM_CELL; cellIdx++)
+      {
+        for(ueIdx = 0 ; ueIdx < MAX_NUM_UE; ueIdx++)
+        {
+           if((dlRrcMsg->gnbCuUeF1apId == duCb.actvCellLst[cellIdx]->ueCb[ueIdx].gnbCuUeF1apId)
+                 && (dlRrcMsg->gnbDuUeF1apId == duCb.actvCellLst[cellIdx]->ueCb[ueIdx].gnbDuUeF1apId))
+           {
+              ueFound = true;
+              ret = duBuildAndSendDlRrcMsgToRlc(duCb.actvCellLst[cellIdx]->cellId, \
+                    duCb.actvCellLst[cellIdx]->ueCb[ueIdx].rlcUeCfg, dlRrcMsg);
+              break; 
+           }
+        }
+        if(ueFound)
+           break;
+      }
+      if(!ueFound)
+        ret = RFAILED;
+   }
+   return ret;
+}
+
+/******************************************************************
+ *
+ * @brief Generates GNB DU Ue F1AP ID
+ *
+ * @details
+ *
+ *    Function : genGnbDuUeF1apId
+ *
+ *    Functionality: Generates GNB DU Ue F1AP ID
+ *
+ * @params[in] void
+ * @return gnbDuF1apId
+ *
+ * ****************************************************************/
+uint32_t genGnbDuUeF1apId()
+{
+   static uint32_t gnbDuUeF1apId = 0;
+
+   return ++gnbDuUeF1apId;
+}
+
+/******************************************************************
+ *
+ * @brief Processes UL CCCH Ind recvd from MAC
+ *
+ * @details
+ *
+ *    Function : duProcUlCcchInd
+ *
+ *    Functionality: Processes UL CCCH Ind recvd from MAC
+ *
+ * @params[in] UlCcchIndInfo *ulCcchIndInfo
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t duProcUlCcchInd(UlCcchIndInfo *ulCcchIndInfo)
+{
+
+   uint8_t ret = ROK;
+   uint32_t gnbDuUeF1apId = 0;
+
+   gnbDuUeF1apId = genGnbDuUeF1apId();
+
+   /* Store Ue mapping */
+   duCb.ueCcchCtxt[duCb.numUe].gnbDuUeF1apId = gnbDuUeF1apId;
+   duCb.ueCcchCtxt[duCb.numUe].crnti         = ulCcchIndInfo->crnti;
+   duCb.ueCcchCtxt[duCb.numUe].cellId        = ulCcchIndInfo->cellId;
+
+   duCb.numUe++;
+
+   ret = (BuildAndSendInitialRrcMsgTransfer(gnbDuUeF1apId, ulCcchIndInfo->crnti, ulCcchIndInfo->ulCcchMsgLen,
+           ulCcchIndInfo->ulCcchMsg));
+   if(ret != ROK)
+   {
+      DU_LOG("\nERROR  -->  DU_APP : BuildAndSendInitialRrcMsgTransfer failed");
+   }
+
+   DU_FREE_SHRABL_BUF(MAC_MEM_REGION, MAC_POOL, ulCcchIndInfo->ulCcchMsg, ulCcchIndInfo->ulCcchMsgLen);
+   DU_FREE_SHRABL_BUF(MAC_MEM_REGION, MAC_POOL, ulCcchIndInfo, sizeof(UlCcchIndInfo));
+
+   return ret;
+
+}
+
+/******************************************************************
+ *
+ * @brief Fills Default UL LC Cfg
+ *
+ * @details
+ *
+ *    Function : fillDefaultUlLcCfg
+ *
+ *    Functionality: Fills Default UL LC Cfg
+ *
+ * @params[in]  UlLcCfg *ulLcCfg 
+ * @return void
+ *****************************************************************/
+void fillDefaultUlLcCfg(UlLcCfg *ulLcCfg)
+{
+   ulLcCfg->priority = LC_PRIORITY_1;
+   ulLcCfg->lcGroup =  0;
+   ulLcCfg->schReqId = 0;
+   ulLcCfg->pbr = PBR_KBPS_INFINITY;
+   ulLcCfg->bsd = BSD_MS_1000;
+}
+
+/******************************************************************
+ *
+ * @brief Fills Initial DL Bandwidth Part
+ *
+ * @details
+ *
+ *    Function : fillDefaultInitDlBwp
+ *
+ *    Functionality: Fills Initial DL Bandwidth Part
+ *
+ * @params[in]  InitialDlBwp *initDlBwp
+ * @return void
+ *
+ *****************************************************************/
+void fillDefaultInitDlBwp(InitialDlBwp *initDlBwp)
+{
+   uint8_t idx = 0;
+   uint8_t freqDomainResource[FREQ_DOM_RSRC_SIZE] = {0};
+   uint8_t coreset0EndPrb, coreset1StartPrb, coreset1NumPrb;
+
+
+   if(initDlBwp)
+   {
+      /* Filling PDCCH Config */
+      initDlBwp->pdcchPresent = TRUE;
+      if(initDlBwp->pdcchPresent)
+      {
+        initDlBwp->pdcchCfg.numCRsetToAddMod = PDCCH_CTRL_RSRC_SET_ONE_ID;
+        memset(initDlBwp->pdcchCfg.cRSetToAddModList, 0, MAX_NUM_CRSET);
+        if(initDlBwp->pdcchCfg.numCRsetToAddMod <= MAX_NUM_CRSET)
+        {
+           initDlBwp->pdcchCfg.cRSetToAddModList[idx].cRSetId = \
+              PDCCH_CTRL_RSRC_SET_ONE_ID;
+           memset(initDlBwp->pdcchCfg.cRSetToAddModList[idx].freqDomainRsrc, 0,\
+              FREQ_DOM_RSRC_SIZE); 
+           coreset0EndPrb = CORESET0_END_PRB;
+           coreset1StartPrb = coreset0EndPrb +6;
+           coreset1NumPrb = CORESET1_NUM_PRB;
+           /* calculate the PRBs */
+           freqDomRscAllocType0(((coreset1StartPrb)/6), (coreset1NumPrb/6), freqDomainResource);
+           memcpy(initDlBwp->pdcchCfg.cRSetToAddModList[idx].freqDomainRsrc, freqDomainResource,
+              FREQ_DOM_RSRC_SIZE);
+
+           initDlBwp->pdcchCfg.cRSetToAddModList[idx].duration = \
+              PDCCH_CTRL_RSRC_SET_ONE_DURATION;
+           initDlBwp->pdcchCfg.cRSetToAddModList[idx].cceRegMappingType = \
+              CCE_REG_MAPPINGTYPE_PR_NONINTERLEAVED;
+           initDlBwp->pdcchCfg.cRSetToAddModList[idx].precoderGranularity = \
+              ALL_CONTIGUOUS_RBS;
+           initDlBwp->pdcchCfg.cRSetToAddModList[idx].dmrsScramblingId = \
+              SCRAMBLING_ID;
+        }
+        initDlBwp->pdcchCfg.numCRsetToRel = 0;
+        /* Filling Serach Space */
+        initDlBwp->pdcchCfg.numSearchSpcToAddMod = PDCCH_CTRL_RSRC_SET_ONE_ID;
+        memset(initDlBwp->pdcchCfg.searchSpcToAddModList, 0, MAX_NUM_CRSET);
+        if(initDlBwp->pdcchCfg.numSearchSpcToAddMod <= MAX_NUM_CRSET)
+        {
+           initDlBwp->pdcchCfg.searchSpcToAddModList[idx].searchSpaceId =\
+              PDCCH_SRCH_SPC_TWO_ID;
+           initDlBwp->pdcchCfg.searchSpcToAddModList[idx].cRSetId = \
+              PDCCH_CTRL_RSRC_SET_ONE_ID;
+           initDlBwp->pdcchCfg.searchSpcToAddModList[idx].\
+              mSlotPeriodicityAndOffset = SLOTPERIODICITYANDOFFSET_PR_SL1;
+           memset(initDlBwp->pdcchCfg.searchSpcToAddModList[idx].mSymbolsWithinSlot, 0,\
+              MONITORING_SYMB_WITHIN_SLOT_SIZE);
+           initDlBwp->pdcchCfg.searchSpcToAddModList[idx].mSymbolsWithinSlot[idx] =\
+              PDCCH_SYMBOL_WITHIN_SLOT;
+           initDlBwp->pdcchCfg.searchSpcToAddModList[idx].numCandidatesAggLevel1 =\
+              AGGREGATIONLEVEL_N8; 
+           initDlBwp->pdcchCfg.searchSpcToAddModList[idx].numCandidatesAggLevel2 =\
+              AGGREGATIONLEVEL_N8; 
+           initDlBwp->pdcchCfg.searchSpcToAddModList[idx].numCandidatesAggLevel4 =\
+              AGGREGATIONLEVEL_N4; 
+           initDlBwp->pdcchCfg.searchSpcToAddModList[idx].numCandidatesAggLevel8 =\
+              AGGREGATIONLEVEL_N2; 
+           initDlBwp->pdcchCfg.searchSpcToAddModList[idx].numCandidatesAggLevel16 =\
+              AGGREGATIONLEVEL_N1;
+           initDlBwp->pdcchCfg.searchSpcToAddModList[idx].searchSpaceType = \
+              SEARCHSPACETYPE_PR_UE_SPECIFIC;
+           initDlBwp->pdcchCfg.searchSpcToAddModList[idx].ueSpecificDciFormat =\
+              PDCCH_SRCH_SPC_TWO_UE_SPEC_DCI_FORMAT;
+
+           initDlBwp->pdcchCfg.numSearchSpcToRel = 0;
+
+        }
+      }
+      /* Filling PDSCH Config */
+      initDlBwp->pdschPresent = TRUE;
+      if(initDlBwp->pdschPresent)
+      {
+        initDlBwp->pdschCfg.dmrsDlCfgForPdschMapTypeA.addPos = ADDITIONALPOSITION_POS0;
+        initDlBwp->pdschCfg.resourceAllocType = RESOURCEALLOCATION_TYPE1;
+        initDlBwp->pdschCfg.numTimeDomRsrcAlloc = 1;
+        initDlBwp->pdschCfg.timeDomRsrcAllociList[idx].mappingType = \
+           MAPPING_TYPEA;
+        initDlBwp->pdschCfg.timeDomRsrcAllociList[idx].startSymbol = PDSCH_START_SYMBOL; 
+        initDlBwp->pdschCfg.timeDomRsrcAllociList[idx].symbolLength = PDSCH_LENGTH_SYMBOL;
+        initDlBwp->pdschCfg.timeDomRsrcAllociList[idx].startSymbolAndLength = \
+           calcSliv(PDSCH_START_SYMBOL, PDSCH_LENGTH_SYMBOL);
+        initDlBwp->pdschCfg.rbgSize = RBG_SIZE_CONFIG1;
+        initDlBwp->pdschCfg.numCodeWordsSchByDci = CODEWORDS_SCHED_BY_DCI_N1;
+        initDlBwp->pdschCfg.bundlingType = TYPE_STATIC_BUNDLING;
+        initDlBwp->pdschCfg.bundlingInfo.StaticBundling.size = 0;
+      }
+   }
+
+}
+
+/******************************************************************
+ *
+ * @brief Fills Initial UL Bandwidth Part
+ *
+ * @details
+ *
+ *    Function : fillDefaultInitUlBwp
+ *
+ *    Functionality: Fills Initial UL Bandwidth Part
+ *
+ * @params[in]  InitialUlBwp *initUlBwp
+ * @return void
+ *
+ *****************************************************************/
+void fillDefaultInitUlBwp(InitialUlBwp *initUlBwp)
+{
+   uint8_t idx;
+   if(initUlBwp)
+   {
+      initUlBwp->pucchPresent = FALSE;
+
+      /*Filling PUSCH Config */
+      initUlBwp->puschPresent = TRUE;
+      if(initUlBwp->puschPresent)
+      {
+         initUlBwp->puschCfg.dataScramblingId = SCRAMBLING_ID;
+        initUlBwp->puschCfg.dmrsUlCfgForPuschMapTypeA.addPos = ADDITIONALPOSITION_POS0; 
+        initUlBwp->puschCfg.dmrsUlCfgForPuschMapTypeA.transPrecodDisabled. \
+           scramblingId0 = SCRAMBLING_ID; 
+        initUlBwp->puschCfg.resourceAllocType = RESOURCEALLOCATION_TYPE1;
+        initUlBwp->puschCfg.numTimeDomRsrcAlloc = 1;
+        idx = 0;
+        if(initUlBwp->puschCfg.numTimeDomRsrcAlloc <= MAX_NUM_UL_ALLOC)
+        {
+           initUlBwp->puschCfg.timeDomRsrcAllocList[idx].k2 = PUSCH_K2;
+           initUlBwp->puschCfg.timeDomRsrcAllocList[idx].mappingType =\
+              MAPPING_TYPEA;
+           initUlBwp->puschCfg.timeDomRsrcAllocList[idx].startSymbol = PUSCH_START_SYMBOL;
+           initUlBwp->puschCfg.timeDomRsrcAllocList[idx].symbolLength = PUSCH_LENGTH_SYMBOL;
+           initUlBwp->puschCfg.timeDomRsrcAllocList[idx].startSymbolAndLength =\
+              calcSliv(PUSCH_START_SYMBOL, PUSCH_LENGTH_SYMBOL);
+        }
+        initUlBwp->puschCfg.transformPrecoder = TRANSFORM_PRECODER_DISABLED;
+      }
+   }
+   else
+   {
+      DU_LOG("\nERROR  -->  DU APP : Memory is NULL of InitalUlBwp");
+   }
+
+}
+/******************************************************************
+ *
+ * @brief Fills SpCell Group Info
+ *
+ * @details
+ *
+ *    Function : fillDefaultSpCellGrpInfo
+ *
+ *    Functionality: Fills Sp Cell Group Info
+ *
+ * @params[in]  SpCellCfg *spCell
+ * @return void
+ *
+ *****************************************************************/
+void fillDefaultSpCellGrpInfo(SpCellCfg *spCell)
+{
+   if(spCell)
+   {
+      spCell->servCellIdx = SERV_CELL_IDX;
+      /* Filling Initial Dl Bwp */
+      fillDefaultInitDlBwp(&spCell->servCellCfg.initDlBwp);
+
+      spCell->servCellCfg.numDlBwpToAdd    = 0; 
+      spCell->servCellCfg.firstActvDlBwpId = ACTIVE_DL_BWP_ID;
+      spCell->servCellCfg.defaultDlBwpId   = ACTIVE_DL_BWP_ID;
+      spCell->servCellCfg.bwpInactivityTmr = NULLP;
+      spCell->servCellCfg.pdschServCellCfg.maxMimoLayers = NULLP;
+      spCell->servCellCfg.pdschServCellCfg.maxCodeBlkGrpPerTb = NULLP;
+      spCell->servCellCfg.pdschServCellCfg.codeBlkGrpFlushInd = NULLP;
+      spCell->servCellCfg.pdschServCellCfg.xOverhead = NULLP;
+      spCell->servCellCfg.pdschServCellCfg.numHarqProcForPdsch =\
+         NUM_HARQ_PROC_FOR_PDSCH_N_16;
+      /* Filling Initial UL Bwp*/
+      fillDefaultInitUlBwp(&spCell->servCellCfg.initUlBwp);
+      spCell->servCellCfg.numUlBwpToAdd     = 0; 
+      spCell->servCellCfg.firstActvUlBwpId  = ACTIVE_DL_BWP_ID; 
+   }
+   else
+   {
+      DU_LOG("\nERROR  -->  DU APP : Memory is NULL for SpCellGrp");
+   }
+}
+
+/******************************************************************
+ *
+ * @brief Fills Physical Cell Group Info
+ *
+ * @details
+ *
+ *    Function : fillDefaultPhyCellGrpInfo
+ *
+ *    Functionality: Fills Physical Cell Group Info
+ *
+ * @params[in]  PhyCellGrpCfg *cellGrp
+ * @return void
+ *
+ *****************************************************************/
+void fillDefaultPhyCellGrpInfo(PhyCellGrpCfg *cellGrp)
+{
+   if(cellGrp)
+   {
+      cellGrp->pdschHarqAckCodebook = PDSCH_HARQ_ACK_CODEBOOK_DYNAMIC;
+      cellGrp->pNrFr1 = P_NR_FR1;
+   }
+   else
+   {
+      DU_LOG("\nERROR  -->  DU APP : Memory is NULL for Physical Cell Group");
+   }
+}
+
+/******************************************************************
+ *
+ * @brief Fills Mac Cell Group Info
+ *
+ * @details
+ *
+ *    Function : fillDefaultMacCellGrpInfo
+ *
+ *    Functionality: Fills Mac Cell Group Info
+ *
+ * @params[in]  MacCellGrpCfg *cellGrp
+ * @return void
+ *
+ *****************************************************************/
+void fillDefaultMacCellGrpInfo(MacCellGrpCfg *cellGrp)
+{
+   uint8_t idx;
+
+   if(cellGrp)
+   {
+      /* Filling Scheduling Request Config */
+      cellGrp->schReqCfg.addModListCount = 1;
+      if(cellGrp->schReqCfg.addModListCount <= MAX_NUM_SR_CFG_PER_CELL_GRP)
+      {
+        for(idx = 0; idx < cellGrp->schReqCfg.addModListCount; idx++)
+        {
+           cellGrp->schReqCfg.addModList[idx].schedReqId    = SCH_REQ_ID;
+           cellGrp->schReqCfg.addModList[idx].srProhibitTmr = SR_PROHIBIT_MS_32;
+           cellGrp->schReqCfg.addModList[idx].srTransMax    = SR_TRANS_MAX_N_16;
+        }
+      }
+      cellGrp->schReqCfg.relListCount = 0;
+
+      /* Filling Tag config */
+      cellGrp->tagCfg.addModListCount = 1;
+      if(cellGrp->tagCfg.addModListCount <= MAC_NUM_TAGS)
+      {
+        for(idx = 0; idx < cellGrp->tagCfg.addModListCount; idx++)
+        {
+           cellGrp->tagCfg.addModList[idx].tagId = TAG_ID;
+           cellGrp->tagCfg.addModList[idx].timeAlignTimer = TIME_ALIGNMENT_TIMER_INFINITY;
+        }
+      }
+      cellGrp->tagCfg.relListCount = 0;
+
+      /* Filling BSR config */
+      cellGrp->bsrTmrCfg.periodicTimer = BSR_PERIODIC_TIMER_SF_10;
+      cellGrp->bsrTmrCfg.retxTimer = BSR_RETX_TIMER_SF_320;
+      cellGrp->bsrTmrCfg.srDelayTimer = BSR_SR_DELAY_TMR_2560;
+
+      /* Filling PHR config */
+      cellGrp->phrCfgSetupPres = true;
+      cellGrp->phrCfg.periodicTimer = PHR_PERIODIC_TIMER_INFINITY;
+      cellGrp->phrCfg.prohibitTimer = PHR_PROHIBIT_TIMER_SF_0;
+      cellGrp->phrCfg.txPowerFactor = PHR_TX_PWR_FACTOR_CHANGE_INFINITY;
+      cellGrp->phrCfg.multiplePHR   = false;
+      cellGrp->phrCfg.dummy         = false;
+      cellGrp->phrCfg.phrType2OtherCell = false;
+      cellGrp->phrCfg.phrOtherCG = PHR_MODE_OTHER_CG_REAL;  
+
+   }
+   else
+   {
+      DU_LOG("\nERROR  -->  DU APP : Memory is NULL for Master Cell Group");
+   }
+}
+
+/*******************************************************************
+ *
+ * @brief Fills default modulation info for a UE
+ *
+ * @details
+ *
+ *    Function : fillDefaultModulation
+ *
+ *    Functionality: Fills default modulation info for a UE
+ *
+ * @params[in] Pointer to MAC UE configuration
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+void fillDefaultModulation(MacUeCfg *ueCfg)
+{
+   ueCfg->dlModInfo.modOrder = MOD_ORDER_QPSK;
+   ueCfg->dlModInfo.mcsIndex = SIB1_MCS;
+   ueCfg->dlModInfo.mcsTable = MCS_TABLE_QAM64; /* Spec 38.214-Table 5.1.3.1-1 */
+
+   ueCfg->ulModInfo.modOrder = MOD_ORDER_QPSK;
+   ueCfg->ulModInfo.mcsIndex = SIB1_MCS;
+   ueCfg->ulModInfo.mcsTable = MCS_TABLE_QAM64; /* Spec 38.214-Table 5.1.3.1-1 */
+}
+
+/******************************************************************
+ *
+ * @brief Function to fill Mac Lc Cfg for SRB1
+ *
+ * @details
+ *
+ *    Function : fillMacSrb1LcCfg
+ *
+ *    Functionality: Function to fill Mac Lc cfg for SRB1
+ *
+ * @params[in]  LcCfg *lcCfg, LcCfg *ueSetReqDb
+ * @return void
+ *****************************************************************/
+
+void fillMacSrb1LcCfg(LcCfg *macLcCfg)
+{
+   macLcCfg->lcId   = SRB1_LCID;
+   macLcCfg->configType = CONFIG_ADD;
+   macLcCfg->drbQos = NULLP;
+   macLcCfg->snssai = NULLP;
+   macLcCfg->ulLcCfgPres = true;
+   fillDefaultUlLcCfg(&macLcCfg->ulLcCfg);
+}
+
+/******************************************************************
+ *
+ * @brief Function to fill the Lc cfg from ueSetupReqDb
+ *
+ * @details
+ *
+ *    Function : fillMacLcCfgToAddMod
+ *
+ *    Functionality: Function to fill the Lc cfg from ueSetupReqDb
+ *
+ * @params[in]  LcCfg *lcCfg, LcCfg *ueSetReqDb
+ * @return ROK/RFAILED
+ *
+ *****************************************************************/
+
+uint8_t fillMacLcCfgToAddMod(LcCfg *lcCfg, LcCfg *ueSetReqDb)
+{
+   uint8_t ret = ROK; 
+   lcCfg->lcId = ueSetReqDb->lcId;
+   lcCfg->configType = ueSetReqDb->configType;
+   /* Filling DRBQOS */
+   if(ueSetReqDb->drbQos)
+   {
+      if(!lcCfg->drbQos)
+      {
+         DU_ALLOC_SHRABL_BUF(lcCfg->drbQos, sizeof(DrbQosInfo));
+         if(!lcCfg->drbQos)
+         {
+            DU_LOG("\nERROR  -->  DU APP : Memory Alloc failed at drQos at fillMacLcCfgToAddMod()");
+            return RFAILED;
+         }
+      }
+      if(ret == ROK)
+      {
+         memcpy(lcCfg->drbQos, ueSetReqDb->drbQos, sizeof(DrbQosInfo));
+      }
+   }
+   else
+   {
+      lcCfg->drbQos = NULLP;
+   }
+
+   if(ret == ROK)
+   {
+      if(ueSetReqDb->snssai)
+      {
+         if(!lcCfg->snssai)
+         {
+            DU_ALLOC_SHRABL_BUF(lcCfg->snssai, sizeof(Snssai));
+            if(!lcCfg->snssai)
+            {
+               DU_LOG("\nERROR  -->  DU APP : Memory Alloc failed at snnsai at fillMacLcCfgToAddMod()");
+               ret = RFAILED;
+            }
+         }
+         if(ret == ROK)
+         {
+            /* Filling SNSSAI */
+            memcpy(lcCfg->snssai, ueSetReqDb->snssai, sizeof(Snssai));
+         }
+        else
+        {
+            lcCfg->snssai = NULLP;
+            if(lcCfg->drbQos)
+            {
+               DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, lcCfg->drbQos, sizeof(DrbQosInfo));
+               lcCfg->drbQos = NULLP;
+            }
+           return ret;
+        }
+      }
+      else
+         lcCfg->snssai = NULLP;
+   }
+   lcCfg->ulLcCfgPres = ueSetReqDb->ulLcCfgPres;
+   memcpy(&lcCfg->ulLcCfg, &ueSetReqDb->ulLcCfg, sizeof(UlLcCfg));
+   memcpy(&lcCfg->dlLcCfg, &ueSetReqDb->dlLcCfg, sizeof(DlLcCfg));
+   return ret;
+}
+
+/******************************************************************
+ *
+ * @brief Function to copy the Bit rate from ueSetupReqDb
+ *
+ * @details
+ *
+ *    Function : fillAmbr
+ *
+ *    Functionality: Function to copy bit Rate from ueSetupReqDb
+ *
+ * @params[in]  AmbrCfg **macAmbr, AmbrCfg  *ueDbAmbr
+ * @return ROK/RFAILED
+ *
+ *****************************************************************/
+
+uint8_t fillAmbr(AmbrCfg **macAmbr, AmbrCfg *ueDbAmbr)
+{
+   if(ueDbAmbr)
+   {
+      if(*macAmbr == NULLP)
+      {
+         DU_ALLOC_SHRABL_BUF(*macAmbr, sizeof(AmbrCfg));
+         if(*macAmbr == NULLP)
+         {
+            DU_LOG("\nERROR  -->  DU APP : Memory Alloc Failed at fillAmbr()");
+            return RFAILED;
+         }
+      }
+      memset(*macAmbr, 0, sizeof(AmbrCfg));
+      (*macAmbr)->ulBr = ueDbAmbr->ulBr;
+   }
+   else
+   {
+      *macAmbr = NULLP;
+   }
+   return ROK;
+}
+
+/******************************************************************
+ *
+ * @brief Builds and Send UE ReConfig Request to MAC
+ *
+ * @details
+ *
+ *    Function : sendUeReCfgReqToMac
+ *
+ *    Functionality: Builds and Send UE ReConfig Request to MAC
+ *
+ * @Params[in]  MacUeCfg pointer
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+
+uint8_t sendUeReCfgReqToMac(MacUeCfg *macUeCfg)
+{
+   uint8_t ret = ROK;
+   Pst pst;
+   
+   /* Fill Pst */
+   FILL_PST_DUAPP_TO_MAC(pst, EVENT_MAC_UE_RECONFIG_REQ);
+   
+   if(macUeCfg)
+   {
+      /* Processing one Ue at a time to MAC */
+      DU_LOG("\nDEBUG   -->  DU_APP: Sending Ue Reconfig Request to MAC");
+      ret = (*packMacUeReconfigReqOpts[pst.selector])(&pst, macUeCfg);
+      if(ret == RFAILED)
+      {
+         DU_LOG("\nERROR  -->  DU APP : Failed to send Reconfig Request to MAC at sendUeReCfgReqToMac()");
+        DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, macUeCfg, sizeof(MacUeCfg));
+      }
+   }
+   else
+   {
+      DU_LOG("\nERROR  -->  DU_APP: Received macUeCfg is NULLP at sendUeReCfgReqToMac()");
+      ret = RFAILED;
+   }
+   return ret;
+}
+
+/******************************************************************
+ *
+ * @brief Function to return Drb LcId
+ *
+ * @details
+ *
+ *    Function : getDrbLcId
+ *
+ *    Functionality: Function to return Drb LcId
+ *
+ * Returns: lcId - SUCCESS
+ *         RFAILED - FAILURE
+ *****************************************************************/
+
+uint8_t getDrbLcId(uint32_t *drbBitMap)
+{
+   uint8_t bitMask = 1, bitPos = 0;
+   bitPos = MIN_DRB_LCID;
+
+   while(bitPos <= MAX_DRB_LCID)
+   {
+      if((*drbBitMap & (bitMask << bitPos)) == 0)
+      {
+        *drbBitMap = ((bitMask << bitPos)| *drbBitMap);
+        return bitPos;
+      }
+      else
+      {
+        bitPos++;
+      }
+   }
+   DU_LOG("\nERROR   -->  DU_APP: Max LC Reached in getDrbLcId()");
+   return RFAILED;
+}
+
+/******************************************************************
+ *
+ * @brief Fills MacUeCfg structure
+ *
+ * @details
+ *
+ *    Function : fillMacUeCfg
+ *
+ *    Functionality: Fills MacUeCfg
+ *
+ * @params[in]  cellId, ueIdx, crnti, 
+ *              DuUeCfg  pointer,
+ *              MacUeCfg pointer
+ * @return ROK/RFAILED
+ *
+ *****************************************************************/
+uint8_t fillMacUeCfg(uint16_t cellId, uint8_t ueIdx, uint16_t crnti, \
+   DuUeCfg *ueCfgDb, MacUeCfg *macUeCfg)
+{
+   uint8_t ret, dbIdx, lcIdx, cellIdx;
+   bool lcIdFound = false;
+   MacUeCfg *duMacDb = NULLP;
+
+   ret =ROK;
+
+   if(!ueCfgDb)
+   {
+      macUeCfg->cellId       = cellId;
+      macUeCfg->ueIdx        = ueIdx;
+      macUeCfg->crnti        = crnti;
+      fillDefaultMacCellGrpInfo(&macUeCfg->macCellGrpCfg);
+      fillDefaultPhyCellGrpInfo(&macUeCfg->phyCellGrpCfg);
+      fillDefaultSpCellGrpInfo(&macUeCfg->spCellCfg);
+      macUeCfg->ambrCfg = NULLP;
+      fillMacSrb1LcCfg(&macUeCfg->lcCfgList[0]);
+      fillDefaultModulation(macUeCfg);
+      macUeCfg->numLcs++;
+   }
+   else
+   {
+      /* Fetching MacDb from DuUeCb */
+      GET_CELL_IDX(cellId, cellIdx);
+      duMacDb = &duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].macUeCfg;
+      /* Fetching MaUeCfg List for ADD/MOD/DEL */
+      macUeCfg->cellId       = cellId;
+      macUeCfg->ueIdx        = ueIdx;
+      macUeCfg->crnti        = crnti;
+      ret = procUeReCfgCellInfo(macUeCfg, ueCfgDb->cellGrpCfg);
+      if(ret == ROK)
+      {
+         if(macUeCfg->spCellCfgPres == true)
+         {
+            if(macUeCfg->spCellCfg.servCellCfg.initDlBwp.pdschPresent)
+            {
+               fillStartSymbolAndLen(macUeCfg->spCellCfg.servCellCfg.initDlBwp.pdschCfg.numTimeDomRsrcAlloc,\
+                     &macUeCfg->spCellCfg.servCellCfg.initDlBwp.pdschCfg, NULL);
+            }
+            if(macUeCfg->spCellCfg.servCellCfg.initUlBwp.puschPresent)
+            {
+               fillStartSymbolAndLen(macUeCfg->spCellCfg.servCellCfg.initUlBwp.puschCfg.numTimeDomRsrcAlloc,\
+                     NULL, &macUeCfg->spCellCfg.servCellCfg.initUlBwp.puschCfg);
+            }
+         }
+         ret = fillAmbr(&macUeCfg->ambrCfg, ueCfgDb->ambrCfg);
+
+         duFillModulationDetails(macUeCfg, duMacDb, ueCfgDb->ueNrCapability);
+      }
+
+      /* Filling LC Context */
+      for(dbIdx = 0; (dbIdx < ueCfgDb->numMacLcs && ret == ROK); dbIdx++)
+      {
+         if(!ueCfgDb->macLcCfg[dbIdx].ulLcCfgPres)
+         {
+            /* Filling default UL LC config in MAC if not present */
+            ueCfgDb->macLcCfg[dbIdx].ulLcCfgPres = true;
+            fillDefaultUlLcCfg(&ueCfgDb->macLcCfg[dbIdx].ulLcCfg);
+         }
+         for(lcIdx = 0; lcIdx < duMacDb->numLcs; lcIdx++)
+         {
+            if(ueCfgDb->macLcCfg[dbIdx].lcId == duMacDb->lcCfgList[lcIdx].lcId)
+            {
+               lcIdFound = true;
+               if((ueCfgDb->macLcCfg[dbIdx].configType == CONFIG_UNKNOWN) ||
+                     (ueCfgDb->macLcCfg[dbIdx].configType == CONFIG_MOD))
+               {
+                  ueCfgDb->macLcCfg[dbIdx].configType = CONFIG_MOD;
+                  ret = fillMacLcCfgToAddMod(&macUeCfg->lcCfgList[dbIdx], &ueCfgDb->macLcCfg[dbIdx]);
+               }
+            }
+            else
+               lcIdFound = false;
+         }
+         if(!lcIdFound)
+         {
+            /* ADD/DEL CONFIG */
+            ret = fillMacLcCfgToAddMod(&macUeCfg->lcCfgList[dbIdx], &ueCfgDb->macLcCfg[dbIdx]);
+         }
+         if(ret == ROK)
+         {
+            macUeCfg->numLcs++;
+         }
+         else
+         {
+            DU_LOG("\nERROR  -->  DU APP : Failed to add Lc at Idx %d in fillMacUeCfg()", dbIdx); 
+            break;
+         }
+      }/*End of Outer FOR loop */
+   }
+   return ret;
+}
+
+/******************************************************************
+ *
+ * @brief Fills Rlc AM Information
+ *
+ * @details
+ *
+ *    Function : fillDefaultAmInfo
+ *
+ *    Functionality: Fills Rlc AM Information
+ *
+ * @params[in]  AmBearerCfg *amCfg
+ * @return void
+ *
+ *****************************************************************/
+void fillDefaultAmInfo(AmBearerCfg *amCfg)
+{
+   /* DL AM */
+   amCfg->dlAmCfg.snLenDl     = AM_SIZE_12;
+   amCfg->dlAmCfg.pollRetxTmr = T_POLL_RETRANSMIT_VAL;
+   amCfg->dlAmCfg.pollPdu     = POLL_PDU_VAL;
+   amCfg->dlAmCfg.pollByte    = POLL_BYTE_VAL;
+   amCfg->dlAmCfg.maxRetxTh   = MAX_RETX_THRESHOLD_VAL;   
+   /* UL AM */
+   amCfg->ulAmCfg.snLenUl     = AM_SIZE_12;
+   amCfg->ulAmCfg.reAssemTmr  = T_REASSEMBLY_VAL; 
+   amCfg->ulAmCfg.statProhTmr = T_STATUS_PROHIBHIT_VAL;
+}
+
+/******************************************************************
+ *
+ * @brief Fills RLC UM Bi Directional Information
+ *
+ * @details
+ *
+ *    Function : fillDefaultUmBiInfo
+ *
+ *    Functionality: Fills RLC UM Bi Directional Information
+ *
+ * @params[in]  UmBiDirBearerCfg *umBiDirCfg
+ * @return void
+ *
+ *****************************************************************/
+void fillDefaultUmBiInfo(UmBiDirBearerCfg *umBiDirCfg)
+{
+   /* UL UM BI DIR INFO */
+   umBiDirCfg->ulUmCfg.snLenUlUm = UM_SIZE_12;
+   umBiDirCfg->ulUmCfg.reAssemTmr = T_REASSEMBLY_VAL;
+
+   /* DL UM BI DIR INFO */
+   umBiDirCfg->dlUmCfg.snLenDlUm  = UM_SIZE_12;
+}
+
+/******************************************************************
+ *
+ * @brief Fills RLC UM Uni Directional UL Information
+ *
+ * @details
+ *
+ *    Function : fillDefaultUmUlInfo
+ *
+ *    Functionality: Fills RLC UM Uni Directional Info
+ *
+ * @params[in]  UmUniDirUlBearerCfg *UmUlCfg
+ * @return void
+ *
+ *****************************************************************/
+void fillDefaultUmUlInfo(UmUniDirUlBearerCfg *UmUlCfg)
+{
+   UmUlCfg->ulUmCfg.snLenUlUm = UM_SIZE_12;
+   UmUlCfg->ulUmCfg.reAssemTmr = T_REASSEMBLY_VAL;
+}
+
+/******************************************************************
+ *
+ * @brief Fills RLC UM Uni Directional DL Information
+ *
+ * @details
+ *
+ *    Function : fillDefaultUmDlInfo
+ *
+ *    Functionality: Fills RLC UM Uni Directional DL Info
+ *
+ * @params[in]  UmUniDirDlBearerCfg *UmDlCfg
+ * @return void
+ *
+ *****************************************************************/
+void fillDefaultUmDlInfo(UmUniDirDlBearerCfg *UmDlCfg)
+{
+   UmDlCfg->dlUmCfg.snLenDlUm  = UM_SIZE_12;
+}
+
+/******************************************************************
+ *
+ * @brief Builds Rlc Mode Default Configuration
+ *
+ * @details
+ *
+ *    Function : fillDefaultRlcModeCfg
+ *
+ *    Functionality: Builds Rlc Mode Default Configuration
+ *
+ * @params[in]  rlcMode, RlcBearerCfg *lcCfg
+ * @return ROK/RFAILED
+ *
+ *****************************************************************/
+
+uint8_t fillDefaultRlcModeCfg(uint8_t rlcMode, RlcBearerCfg *lcCfg)
+{
+
+   if(lcCfg)
+   {
+      switch(rlcMode)
+      {
+         case RLC_AM :
+            {
+              if(!lcCfg->u.amCfg)
+              {
+                 DU_ALLOC_SHRABL_BUF(lcCfg->u.amCfg, sizeof(AmBearerCfg));
+                if(lcCfg->u.amCfg)
+                   fillDefaultAmInfo(lcCfg->u.amCfg);
+                else
+                {
+                    DU_LOG("\n ERROR  -->  DU APP : Memory Alloc failed at AmCfg at fillDefaultRlcModeCfg()");
+                   return RFAILED;
+                }
+              }
+               break;
+            }
+         case RLC_UM_BI_DIRECTIONAL :
+            {
+              if(!lcCfg->u.umBiDirCfg)
+              {
+                 DU_ALLOC_SHRABL_BUF(lcCfg->u.umBiDirCfg, sizeof(UmBiDirBearerCfg));
+                if(lcCfg->u.umBiDirCfg)
+                    fillDefaultUmBiInfo(lcCfg->u.umBiDirCfg);
+                 else
+                {
+                    DU_LOG("\n ERROR  -->  DU APP : Memory Alloc failed at UmBiDirCfg at fillDefaultRlcModeCfg()");
+                   return RFAILED;
+                }
+              }
+               break;
+            }
+         case RLC_UM_UNI_DIRECTIONAL_UL :
+            {
+              if(!lcCfg->u.umUniDirUlCfg)
+              {
+                  DU_ALLOC_SHRABL_BUF(lcCfg->u.umUniDirUlCfg, sizeof(UmUniDirUlBearerCfg));
+                 if(lcCfg->u.umUniDirUlCfg)
+                    fillDefaultUmUlInfo(lcCfg->u.umUniDirUlCfg);
+                  else
+                 {
+                     DU_LOG("\n ERROR  -->  DU APP : Memory Alloc failed at UmUniDirUlCfg at fillDefaultRlcModeCfg()");
+                    return RFAILED;
+                 }
+              }
+               break;
+            }
+         case RLC_UM_UNI_DIRECTIONAL_DL :
+            {
+              if(!lcCfg->u.umUniDirDlCfg)
+              {
+                  DU_ALLOC_SHRABL_BUF(lcCfg->u.umUniDirDlCfg, sizeof(UmUniDirDlBearerCfg));
+                  if(lcCfg->u.umUniDirDlCfg)
+                  fillDefaultUmDlInfo(lcCfg->u.umUniDirDlCfg);
+                  else
+                 {
+                     DU_LOG("\n ERROR  -->  DU APP : Memory Alloc failed at UmUniDirDlCfg at fillDefaultRlcModeCfg()");
+                    return RFAILED;
+                 }
+              }
+               break;
+            }
+         default:
+            DU_LOG("\nERROR  -->  DUAPP: Invalid rlcMode %d at extractRlcCfgToAddMod()", rlcMode);
+            return RFAILED;
+      }
+
+   }
+   else
+   {
+      DU_LOG("\nERROR  -->  DUAPP: Received LC Config is NULL");
+      return RFAILED;
+   }
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Function to fill Rlc Lc Cfg for SRB1
+ *
+ * @details
+ *
+ *    Function : fillRlcSrb1LcCfg
+ *
+ *    Functionality: 
+ *     Function to fill Rlc Lc Cfg for SRB1
+ * 
+ *  @params[in]     Pointer to RlcBearerCfg
+ *  @return ROK/RFAILED
+ * 
+ *****************************************************************/
+
+uint8_t fillRlcSrb1LcCfg(RlcBearerCfg *rlcLcCfg)
+{
+   uint8_t ret = ROK;
+
+   rlcLcCfg->rbId   = SRB1_LCID;
+   rlcLcCfg->rbType = RB_TYPE_SRB;
+   rlcLcCfg->lcId   = SRB1_LCID;
+   rlcLcCfg->lcType = LCH_DCCH;
+   rlcLcCfg->rlcMode = RLC_AM;
+   rlcLcCfg->configType = CONFIG_ADD;
+   ret = fillDefaultRlcModeCfg(rlcLcCfg->rlcMode, rlcLcCfg);
+   return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Processes UE ReConfig Req to RLC UL
+ *
+ * @details
+ *
+ *    Function : sendUeReCfgReqToRlc
+ *
+ *    Functionality: 
+ *     Processes UE Reconfig Req to RLC UL
+ * 
+ *  @params[in]     Pointer to RlcUeCfg
+ *  @return ROK     - success
+ *          RFAILED - failure
+ * 
+ *****************************************************************/
+
+uint8_t sendUeReCfgReqToRlc(RlcUeCfg *rlcUeCfg)
+{
+   uint8_t ret;
+   Pst pst;
+   
+   FILL_PST_DUAPP_TO_RLC(pst, RLC_UL_INST, EVENT_RLC_UE_RECONFIG_REQ);
+   if(rlcUeCfg)
+   {
+      /* Processing one Ue at a time to RLC */
+      DU_LOG("\nDEBUG   -->  DU_APP: Sending Ue Reconfig Request to RLC UL");
+      ret = (*packRlcUeReconfigReqOpts[pst.selector])(&pst, rlcUeCfg);
+      if(ret == RFAILED)
+      {
+         DU_LOG("\nERROR  -->  DU_APP : Failed to send Ue Reconfig Req to RLC at sendUeReCfgReqToRlc()");
+         DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, rlcUeCfg, sizeof(RlcUeCfg));
+      }
+   }
+   else
+   {
+      DU_LOG("\nERROR  -->   DU_APP: Received RlcUeCfg is NULL at sendUeReCfgReqToRlc()");
+      ret = RFAILED;
+   }
+   return ret;
+}
+
+/******************************************************************
+ *
+ * @brief Fills RlcBearerCfg structure
+ *
+ * @details
+ *
+ *    Function : fillRlcUeCfg
+ *
+ *    Functionality: Fills Rlc Bearer Cfg
+ *
+ *
+ *****************************************************************/
+uint8_t fillRlcUeCfg(uint16_t cellId, uint8_t ueIdx,\
+   DuUeCfg *ueCfgDb, RlcUeCfg *rlcUeCfg)
+{
+   uint8_t ret, dbIdx, lcIdx, cellIdx;
+   bool lcIdFound = false;
+   RlcUeCfg *duRlcDb = NULLP;
+
+   ret = ROK;
+   if(!ueCfgDb)
+   {
+      /* Initial RB being Added */ 
+      rlcUeCfg->cellId       = cellId;
+      rlcUeCfg->ueIdx        = ueIdx;
+      ret = fillRlcSrb1LcCfg(&rlcUeCfg->rlcLcCfg[0]);
+      if(ret == ROK)
+         rlcUeCfg->numLcs++;
+      else
+        memset(rlcUeCfg, 0, sizeof(RlcUeCfg));
+   }
+   else
+   {
+      /* Fetch RlcDb from DuUeCb */ 
+      GET_CELL_IDX(cellId, cellIdx);
+      duRlcDb = &duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].rlcUeCfg;
+      /*Filling RlcUeCfg */
+      rlcUeCfg->cellId       = cellId;
+      rlcUeCfg->ueIdx        = ueIdx;
+      for(dbIdx = 0; (dbIdx < ueCfgDb->numRlcLcs && ret == ROK); dbIdx++)
+      {
+        ret = fillDefaultRlcModeCfg(ueCfgDb->rlcLcCfg[dbIdx].rlcMode, &ueCfgDb->rlcLcCfg[dbIdx]);
+        if(ret == RFAILED)
+        {
+           DU_LOG("\n ERROR  -->  DU APP : Failed to fill Rlc Mode at fillRlcUeCfg()");
+           memset(rlcUeCfg, 0, sizeof(RlcUeCfg));
+           return ret;
+        }
+        /* Fill Rlc Ue Cfg List for ADD/MOD/DEL */
+        for(lcIdx = 0; lcIdx < duRlcDb->numLcs; lcIdx++)
+        { 
+           if(ueCfgDb->rlcLcCfg[dbIdx].lcId == duRlcDb->rlcLcCfg[lcIdx].lcId)
+           {
+              lcIdFound = true;
+              if((ueCfgDb->rlcLcCfg[dbIdx].configType == CONFIG_UNKNOWN)||
+                    (ueCfgDb->rlcLcCfg[dbIdx].configType == CONFIG_MOD))
+              {
+                 /* MOD */ 
+                 ueCfgDb->rlcLcCfg[dbIdx].configType = CONFIG_MOD; /* update Db for MOD type */
+                 memcpy(&rlcUeCfg->rlcLcCfg[dbIdx], &ueCfgDb->rlcLcCfg[dbIdx], sizeof(RlcBearerCfg));
+              }
+           }
+           else
+              lcIdFound = false;
+        }
+        if(!lcIdFound)
+        {
+           /* ADD/ DEL Config Type */
+           memcpy(&rlcUeCfg->rlcLcCfg[dbIdx], &ueCfgDb->rlcLcCfg[dbIdx], sizeof(RlcBearerCfg));
+        }
+        rlcUeCfg->numLcs++;
+      }
+   }
+   return ret;
+}
+
+/******************************************************************
+ *
+ * @brief creates UE context
+ *
+ * @details
+ *
+ *    Function : duCreateUeCb
+ *
+ *    Functionality: Creates UE Conetxt
+ *
+ * @params[in] UeCcchCtxt Pointer
+ *             UeIdx Pointer
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ * ****************************************************************/
+uint8_t duCreateUeCb(UeCcchCtxt *ueCcchCtxt, uint32_t gnbCuUeF1apId)
+{
+   uint8_t cellIdx = 0;
+   uint8_t ret     = ROK;
+   uint8_t ueIdx;
+
+   for(cellIdx = 0; cellIdx < MAX_NUM_CELL; cellIdx++)
+   {
+      if(ueCcchCtxt->cellId == duCb.actvCellLst[cellIdx]->cellId)
+      {
+        GET_UE_IDX(ueCcchCtxt->crnti, ueIdx);
+        DU_LOG("\nDEBUG   -->  DU_APP: Filling UeCb for ueIdx [%d]", ueIdx);
+
+        duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].f1UeDb        = NULLP;
+        duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].crnti         = ueCcchCtxt->crnti;
+        duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].gnbDuUeF1apId = ueCcchCtxt->gnbDuUeF1apId;
+        duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].gnbCuUeF1apId = gnbCuUeF1apId;
+        duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].drbBitMap     = NULLP;
+        duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].ueState       = UE_ACTIVE;
+
+        /* Filling Mac Ue Config */ 
+        memset(&duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].macUeCfg, 0, sizeof(MacUeCfg));
+         ret = duBuildAndSendUeCreateReqToMac(ueCcchCtxt->cellId, ueIdx, ueCcchCtxt->crnti,\
+                &duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].macUeCfg);
+         if(ret == RFAILED)
+            DU_LOG("\nERROR  -->  DU APP : Failed to send UE create request to MAC");
+         
+        /* Filling Rlc Ue Config */
+         memset(&duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].rlcUeCfg, 0, sizeof(RlcUeCfg));
+         ret = duBuildAndSendUeCreateReqToRlc(ueCcchCtxt->cellId, ueIdx, \
+                &duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].rlcUeCfg);
+         if(ret == RFAILED)
+            DU_LOG("\nERROR  -->  DU APP : Failed to send UE create request to RLC");
+
+        duCb.actvCellLst[cellIdx]->numActvUes++;
+        memset(ueCcchCtxt, 0, sizeof(UeCcchCtxt));
+      }
+   }
+   return ret;
+}
+
+/******************************************************************
+ *
+ * @brief Builds and Send UE Create Request to MAC
+ *
+ * @details
+ *
+ *    Function : duBuildAndSendUeCreateReqToMac
+ *
+ *    Functionality: Builds and Send UE Create Request to MAC
+ *
+ * @Params[in]  cellId,
+ *              ueIdx
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+
+uint8_t duBuildAndSendUeCreateReqToMac(uint16_t cellId, uint8_t ueIdx,\
+   uint16_t crnti, MacUeCfg *duMacUeCfg)
+{
+   uint8_t  ret = ROK;
+   MacUeCfg *macUeCfg = NULLP;
+   Pst       pst;
+   memset(&pst, 0, sizeof(Pst));
+
+
+   ret = fillMacUeCfg(cellId, ueIdx, crnti, NULL, duMacUeCfg);
+   if(ret == RFAILED)
+   {
+      DU_LOG("\nERROR  -->  DU APP : Failed to fill MacUeCfg at duBuildAndSendUeCreateReqToMac()");
+      return RFAILED;
+   }
+   /* Fill Pst */
+   FILL_PST_DUAPP_TO_MAC(pst, EVENT_MAC_UE_CREATE_REQ);
+
+   /* Copying ueCb to a sharable buffer */
+   DU_ALLOC_SHRABL_BUF(macUeCfg, sizeof(MacUeCfg));
+   if(macUeCfg)
+   {
+      memset(macUeCfg, 0, sizeof(MacUeCfg));
+      memcpy(macUeCfg, &duCb.actvCellLst[cellId - 1]->ueCb[ueIdx -1].macUeCfg, sizeof(MacUeCfg));
+      DU_LOG("\nDEBUG   -->  DU_APP: Sending UE create request to MAC");
+
+      /* Processing one Ue at a time to MAC */
+      ret = (*packMacUeCreateReqOpts[pst.selector])(&pst, macUeCfg);
+      if(ret == RFAILED)
+      {
+        DU_LOG("\nERROR  -->  DU_APP : Failure in sending Ue Create Req to MAC at duBuildAndSendUeCreateReqToMac()");
+        DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, macUeCfg, sizeof(MacUeCfg));
+      }
+   }
+   else
+   {
+      DU_LOG("\n ERROR  -->  DU APP : Memory alloc failed at duBuildAndSendUeCreateReqToMac()");
+      ret = RFAILED;
+   }
+   return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief To update DuUeCb Mac Cfg
+ *
+ * @details
+ *
+ *    Function : duUpdateMacCfg
+ *    Functionality:  update DuUeCb MAC Cfg
+ *
+ * @params[in] DuUeCb Pointer
+ *             F1UeContextSetupDb pointer 
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t duUpdateMacCfg(MacUeCfg *macUeCfg, F1UeContextSetupDb *f1UeDb) 
+{
+   uint8_t ret, lcIdx, dbIdx, numLcs, lcDelIdx;
+   ret = ROK;
+
+   /*Filling Cell Group Cfg*/
+   ret =  procUeReCfgCellInfo(macUeCfg, f1UeDb->duUeCfg.cellGrpCfg);
+   if(ret == ROK)
+   {
+      if(macUeCfg->spCellCfg.servCellCfg.initDlBwp.pdschPresent)
+      {
+         fillStartSymbolAndLen(macUeCfg->spCellCfg.servCellCfg.initDlBwp.pdschCfg.numTimeDomRsrcAlloc,\
+              &macUeCfg->spCellCfg.servCellCfg.initDlBwp.pdschCfg, NULL);
+      }
+      if(macUeCfg->spCellCfg.servCellCfg.initUlBwp.puschPresent)
+      {
+         fillStartSymbolAndLen(macUeCfg->spCellCfg.servCellCfg.initUlBwp.puschCfg.numTimeDomRsrcAlloc,\
+              NULL, &macUeCfg->spCellCfg.servCellCfg.initUlBwp.puschCfg);
+      }
+      ret = fillAmbr(&macUeCfg->ambrCfg, f1UeDb->duUeCfg.ambrCfg);
+   }
+   /* Filling LC Context */
+   for(dbIdx = 0; (dbIdx < f1UeDb->duUeCfg.numMacLcs && ret == ROK); dbIdx++)
+   {
+      numLcs = macUeCfg->numLcs;
+      for(lcIdx = 0; lcIdx < numLcs; lcIdx++)
+      {
+        if(f1UeDb->duUeCfg.macLcCfg[dbIdx].lcId ==  macUeCfg->lcCfgList[lcIdx].lcId)
+        {
+           if(f1UeDb->duUeCfg.macLcCfg[dbIdx].configType == CONFIG_MOD)
+           {
+              ret = fillMacLcCfgToAddMod(&macUeCfg->lcCfgList[lcIdx],&f1UeDb->duUeCfg.macLcCfg[dbIdx]);
+           }
+           else if(f1UeDb->duUeCfg.macLcCfg[dbIdx].configType == CONFIG_DEL)
+           {
+              /* Free memory at matched  lcIdx index */
+              freeMacLcCfg(&macUeCfg->lcCfgList[lcIdx]);
+              macUeCfg->numLcs--;
+              for(lcDelIdx = lcIdx; lcDelIdx < macUeCfg->numLcs; lcDelIdx++)
+              {
+                 /* moving all elements one index ahead */
+                 ret = fillMacLcCfgToAddMod(&macUeCfg->lcCfgList[lcDelIdx], &macUeCfg->lcCfgList[lcDelIdx+1]);
+                 freeMacLcCfg(&macUeCfg->lcCfgList[lcDelIdx+1]);
+                 if(ret == RFAILED)
+                 {
+                     DU_LOG("\nERROR  -->  DU APP : Failed to delete LC at Idx %d in duUpdateMacCfg()", lcDelIdx);
+                    break;
+                 }
+              }
+           }
+        }
+      } 
+      if(f1UeDb->duUeCfg.macLcCfg[dbIdx].configType == CONFIG_ADD)
+      {
+        ret = fillMacLcCfgToAddMod(&macUeCfg->lcCfgList[numLcs], &f1UeDb->duUeCfg.macLcCfg[dbIdx]);
+        if(ret == RFAILED)
+        {
+           DU_LOG("\nERROR  -->  DU APP : Failed to add LC at Idx %d in duUpdateMacCfg()", numLcs);
+           break;
+        }
+        macUeCfg->numLcs++;
+      }
+               
+   }
+   return ret;
+}
+
+/******************************************************************
+ *
+ * @brief Function to fill the RLC Lc cfg from ueSetupReqDb
+ *
+ * @details
+ *
+ *    Function : fillRlcCfgToAddMod
+ *
+ *    Functionality: Function to fill the RLC Lc cfg from ueSetupReqDb
+ *
+ *
+ *****************************************************************/
+
+uint8_t fillRlcCfgToAddMod(RlcBearerCfg *lcCfg, RlcBearerCfg *f1UeDbLcCfg)
+{
+   lcCfg->configType = f1UeDbLcCfg->configType;
+   lcCfg->rbId       = f1UeDbLcCfg->rbId;
+   lcCfg->rbType     = f1UeDbLcCfg->rbType;
+   lcCfg->lcId       = f1UeDbLcCfg->lcId;
+   lcCfg->lcType     = f1UeDbLcCfg->lcType;
+   lcCfg->rlcMode    = f1UeDbLcCfg->rlcMode;
+   switch(lcCfg->rlcMode)
+   {
+      case RLC_AM :
+      {
+         if(!lcCfg->u.amCfg)
+        {
+            DU_ALLOC_SHRABL_BUF(lcCfg->u.amCfg, sizeof(AmBearerCfg));
+            if(!lcCfg->u.amCfg)
+              return RFAILED;
+        }
+         /* DL AM */
+         lcCfg->u.amCfg->dlAmCfg.snLenDl     = f1UeDbLcCfg->u.amCfg->dlAmCfg.snLenDl;    
+         lcCfg->u.amCfg->dlAmCfg.pollRetxTmr = f1UeDbLcCfg->u.amCfg->dlAmCfg.pollRetxTmr;
+         lcCfg->u.amCfg->dlAmCfg.pollPdu     = f1UeDbLcCfg->u.amCfg->dlAmCfg.pollPdu;
+         lcCfg->u.amCfg->dlAmCfg.pollByte    = f1UeDbLcCfg->u.amCfg->dlAmCfg.pollByte;   
+         lcCfg->u.amCfg->dlAmCfg.maxRetxTh   = f1UeDbLcCfg->u.amCfg->dlAmCfg.maxRetxTh;   
+         /* UL AM */
+         lcCfg->u.amCfg->ulAmCfg.snLenUl     = f1UeDbLcCfg->u.amCfg->ulAmCfg.snLenUl;
+         lcCfg->u.amCfg->ulAmCfg.reAssemTmr  = f1UeDbLcCfg->u.amCfg->ulAmCfg.reAssemTmr; 
+         lcCfg->u.amCfg->ulAmCfg.statProhTmr = f1UeDbLcCfg->u.amCfg->ulAmCfg.statProhTmr;
+        break;
+      }
+      case RLC_UM_BI_DIRECTIONAL :
+      {
+         if(!lcCfg->u.umBiDirCfg)
+        {
+            DU_ALLOC_SHRABL_BUF(lcCfg->u.umBiDirCfg, sizeof(UmBiDirBearerCfg));
+           if(!lcCfg->u.umBiDirCfg)
+               return RFAILED;
+         }
+         /* UL UM BI DIR INFO */
+         lcCfg->u.umBiDirCfg->ulUmCfg.snLenUlUm  = f1UeDbLcCfg->u.umBiDirCfg->ulUmCfg.snLenUlUm;  
+         lcCfg->u.umBiDirCfg->ulUmCfg.reAssemTmr = f1UeDbLcCfg->u.umBiDirCfg->ulUmCfg.reAssemTmr;
+         /* DL UM BI DIR INFO */
+         lcCfg->u.umBiDirCfg->dlUmCfg.snLenDlUm  = f1UeDbLcCfg->u.umBiDirCfg->dlUmCfg.snLenDlUm;
+         break;
+      }
+      case RLC_UM_UNI_DIRECTIONAL_UL :
+      {
+         if(!lcCfg->u.umUniDirUlCfg)
+        {
+            DU_ALLOC_SHRABL_BUF(lcCfg->u.umUniDirUlCfg, sizeof(UmUniDirUlBearerCfg));
+           if(!lcCfg->u.umUniDirUlCfg)
+              return RFAILED;
+        }
+         lcCfg->u.umUniDirUlCfg->ulUmCfg.snLenUlUm  = f1UeDbLcCfg->u.umUniDirUlCfg->ulUmCfg.snLenUlUm;  
+         lcCfg->u.umUniDirUlCfg->ulUmCfg.reAssemTmr = f1UeDbLcCfg->u.umUniDirUlCfg->ulUmCfg.reAssemTmr;
+         break;
+
+      }
+      case RLC_UM_UNI_DIRECTIONAL_DL :
+      {
+         if(!lcCfg->u.umUniDirDlCfg)
+        {
+            DU_ALLOC_SHRABL_BUF(lcCfg->u.umUniDirDlCfg, sizeof(UmUniDirDlBearerCfg));
+           if(!lcCfg->u.umUniDirDlCfg)
+              return RFAILED;
+         }
+         lcCfg->u.umUniDirDlCfg->dlUmCfg.snLenDlUm  = f1UeDbLcCfg->u.umUniDirDlCfg->dlUmCfg.snLenDlUm;
+         break;
+      }
+      default:
+         DU_LOG("\nERROR  -->  DU_APP: Invalid Rlc Mode %d at fillRlcCfgToAddMod()", lcCfg->rlcMode);
+        return RFAILED;
+   }
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief To update DuUeCb Rlc Lc Cfg
+ *
+ * @details
+ *
+ *    Function : duUpdateRlcLcCfg
+ *    Functionality:  update DuUeCb Rlc Lc Cfg
+ *
+ * @params[in] DuUeCb Pointer
+ *             F1UeContextSetupDb pointer 
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+
+uint8_t duUpdateRlcLcCfg(RlcUeCfg *rlcUeCfg, F1UeContextSetupDb *f1UeDb)
+{
+   uint8_t ret, lcIdx, dbIdx, numLcs, lcDelIdx;
+
+   ret = ROK;
+   for(dbIdx = 0; (dbIdx < f1UeDb->duUeCfg.numRlcLcs && ret ==ROK); dbIdx++)
+   {
+      numLcs = rlcUeCfg->numLcs;
+      for(lcIdx = 0; lcIdx < numLcs; lcIdx++)
+      {
+        if(f1UeDb->duUeCfg.rlcLcCfg[dbIdx].lcId == rlcUeCfg->rlcLcCfg[lcIdx].lcId)
+        {
+           if(f1UeDb->duUeCfg.rlcLcCfg[dbIdx].configType == CONFIG_MOD)
+           {
+              ret = fillRlcCfgToAddMod(&rlcUeCfg->rlcLcCfg[lcIdx], &f1UeDb->duUeCfg.rlcLcCfg[dbIdx]);
+           }
+           else if(f1UeDb->duUeCfg.rlcLcCfg[dbIdx].configType == CONFIG_DEL)
+           {
+              /* Free memory at matched lcIdx index */
+              freeRlcLcCfg(&rlcUeCfg->rlcLcCfg[lcIdx]);
+              rlcUeCfg->numLcs--;
+              for(lcDelIdx = lcIdx; lcDelIdx < rlcUeCfg->numLcs; lcDelIdx++)
+              {
+                 ret = fillRlcCfgToAddMod(&rlcUeCfg->rlcLcCfg[lcDelIdx], &rlcUeCfg->rlcLcCfg[lcDelIdx+1]);
+                 freeRlcLcCfg(&rlcUeCfg->rlcLcCfg[lcDelIdx+1]);
+                 if(ret == RFAILED)
+                 {
+                     DU_LOG("\nERROR  -->  DU APP : Failed to delete LC at Idx %d in duUpdateRlcCfg()", lcDelIdx);
+                    break;
+                 }
+              }
+           }
+        }
+      }
+      if(f1UeDb->duUeCfg.rlcLcCfg[dbIdx].configType == CONFIG_ADD)
+      {
+        ret = fillRlcCfgToAddMod(&rlcUeCfg->rlcLcCfg[lcIdx], &f1UeDb->duUeCfg.rlcLcCfg[dbIdx]);
+        if(ret == ROK)
+           rlcUeCfg->numLcs++;
+      }
+   }
+   return ret;
+}
+
+
+/*******************************************************************
+ *
+ * @brief Function to fill Tunnel Config to Add/Mod
+ * 
+ *
+ * @details
+ *
+ *    Function : fillTnlCfgToAddMod
+ *
+ *    Functionality: Function to fill tunnel Config to Add/Mod
+ *
+ * @params[in] Pointer to tnlCfgDb,
+ *             pointer to f1TnlCfg
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t fillTnlCfgToAddMod(UpTnlCfg **ueCbTnlCfg, UpTnlCfg *f1TnlCfg)
+{
+   if(*ueCbTnlCfg == NULLP)
+   {
+      /* copying to DuCb Tnl Cfg */
+      DU_ALLOC(*ueCbTnlCfg, sizeof(UpTnlCfg));
+      if(*ueCbTnlCfg == NULLP)
+      {
+         DU_LOG("\nERROR  -->  DU_APP : fillTnlCfgToAddMod: Memory Alloc failed for drbId[%d]", f1TnlCfg->drbId);
+         return RFAILED;
+      }
+   }
+   memset(*ueCbTnlCfg, 0, sizeof(UpTnlCfg));
+   (*ueCbTnlCfg)->configType = f1TnlCfg->configType;
+   (*ueCbTnlCfg)->cellId    = f1TnlCfg->cellId;
+   (*ueCbTnlCfg)->ueIdx     = f1TnlCfg->ueIdx;
+   (*ueCbTnlCfg)->drbId     = f1TnlCfg->drbId;
+   if(f1TnlCfg->tnlCfg1)
+   {
+      if((*ueCbTnlCfg)->tnlCfg1 == NULLP)
+      {
+         DU_ALLOC((*ueCbTnlCfg)->tnlCfg1, sizeof(GtpTnlCfg));
+         if((*ueCbTnlCfg)->tnlCfg1 == NULLP)
+         {
+            DU_LOG("\nERROR  -->  DU_APP : fillTnlCfgToAddMod: Memory Alloc failed for tnlCfg1 for drbId[%d]", f1TnlCfg->drbId);
+            return RFAILED;
+         }
+      }
+      memset((*ueCbTnlCfg)->tnlCfg1, 0, sizeof(GtpTnlCfg));
+      (*ueCbTnlCfg)->tnlCfg1->teId = f1TnlCfg->tnlCfg1->teId;
+      (*ueCbTnlCfg)->tnlCfg1->ulTnlAddress = f1TnlCfg->tnlCfg1->ulTnlAddress;
+      (*ueCbTnlCfg)->tnlCfg1->dlTnlAddress = f1TnlCfg->tnlCfg1->dlTnlAddress;
+   }
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Processing the tunnel Request to EGTP
+ *        
+ * @details
+ *
+ *    Function : duProcEgtpTunnelCfg
+ *
+ *    Functionality: Processing the tunnel Request to EGTP
+ *
+ * @params[in] UptnlCfg *duTnlCfg, UpTnlCfg *f1TnlCfg 
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+
+uint8_t duProcEgtpTunnelCfg(uint8_t ueCbIdx, UpTnlCfg *duTnlCfg, UpTnlCfg *f1TnlCfg)
+{
+   uint8_t ret = RFAILED, delIdx;
 
-#ifdef EGTP_TEST
-U32 sduId = 0;
-#endif
+   if(f1TnlCfg->tnlCfg1 == NULLP)
+   {
+      DU_LOG("\nERROR  -->  DU_APP : Tunnel config not found");
+      return ret;
+   }
 
-/******************************************************************
+   if(f1TnlCfg->configType == CONFIG_ADD)
+   {
+      if(duSendEgtpTnlMgmtReq(EGTP_TNL_MGMT_ADD, NULLP, f1TnlCfg->tnlCfg1) == ROK)
+      {
+        if(fillTnlCfgToAddMod(&duCb.upTnlCfg[duCb.numDrb], f1TnlCfg) == ROK)
+        {
+           duCb.numDrb++;
+           ret = ROK;
+        }
+      }      
+   }
+   else if(f1TnlCfg->configType == CONFIG_MOD)
+   {
+      if(duSendEgtpTnlMgmtReq(EGTP_TNL_MGMT_MOD, duTnlCfg->tnlCfg1->teId, f1TnlCfg->tnlCfg1) == ROK)
+      {
+        if(fillTnlCfgToAddMod(&duTnlCfg, f1TnlCfg) == ROK)
+        {
+           ret = ROK;
+        }
+      }   
+   }
+   else if(f1TnlCfg->configType == CONFIG_DEL)
+   {
+      if(duSendEgtpTnlMgmtReq(EGTP_TNL_MGMT_DEL, duTnlCfg->tnlCfg1->teId, f1TnlCfg->tnlCfg1) == ROK)
+      {           
+        /* Free memory at drbIdx */
+        DU_FREE(duTnlCfg->tnlCfg1, sizeof(GtpTnlCfg));
+        DU_FREE(duTnlCfg, sizeof(UpTnlCfg));
+        duCb.numDrb--;
+        for(delIdx = ueCbIdx; delIdx < duCb.numDrb; delIdx++)
+        {
+           /* moving all elements one index ahead */
+           ret = fillTnlCfgToAddMod(&duCb.upTnlCfg[delIdx], duCb.upTnlCfg[delIdx+1]);
+           if(ret != ROK)
+           {
+              return ret;
+           }
+        }
+      }   
+   }
+   return ret;
+}
+
+/***********************************************************************
  *
- * @brief Send UE configuration to RLC
+ * @brief Function to fill Tunnel Config
+ *        and sends tunnel Req to EGTP
+ * 
  *
  * @details
  *
- *    Function : duSendUeCreateReqToRlc
+ *    Function : duUpdateTunnelCfgDb
  *
- *    Functionality: Send UeCreateReqToRlc
+ *    Functionality: Function to fill tunnel Config
+ *                   and sends tunnel Cfg Req to EGTP
  *
+ * @params[in] ueIdx, cellId, DuUeCfg 
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-S16 duSendUeCreateReqToRlc()
+
+uint8_t duUpdateTunnelCfgDb(uint8_t ueIdx, uint8_t cellId, DuUeCfg *duUeCfg)
 {
-   U8  idx;
-   Pst pst;
-   CkwCfgInfo *ueCfg;
-   
-   DU_SET_ZERO(&ueCfg, sizeof(ueCfg));
-   DU_SET_ZERO(&pst, sizeof(Pst));
+   uint8_t ret = ROK, drbIdx, duCbDrbIdx;
+   bool drbFound = false;
+
+   /*If Add/Mod tunnels request for that DRB is successful in EGTP */
+   /*then update drbId and tunnel Info in duCb */
+   for(drbIdx=0; drbIdx < duUeCfg->numDrb; drbIdx++)
+   {
+      duUeCfg->upTnlInfo[drbIdx].cellId = cellId;
+      duUeCfg->upTnlInfo[drbIdx].ueIdx = ueIdx;
+      for(duCbDrbIdx = 0; duCbDrbIdx < duCb.numDrb; duCbDrbIdx++)
+      {
+        if(duCb.upTnlCfg[duCbDrbIdx]->drbId == duUeCfg->upTnlInfo[drbIdx].drbId)
+        {
+           drbFound = true; /* existing DRB */
+           if(duProcEgtpTunnelCfg(duCbDrbIdx, duCb.upTnlCfg[duCbDrbIdx], &duUeCfg->upTnlInfo[drbIdx]) != ROK)
+           {
+              DU_LOG("\nERROR  -> DU_APP : duUpdateTunnelCfgDb: Failed to modify tunnel req for Drb id[%d]",
+              duUeCfg->upTnlInfo[drbIdx].drbId);
+              ret = RFAILED;
+           }
+           break;
+        }
+        else
+           drbFound = false;
+      }
+      if(!drbFound && ret == ROK)/* new DRB to Add */
+      {
+        if(duProcEgtpTunnelCfg(NULLP, NULLP, &duUeCfg->upTnlInfo[drbIdx]) != ROK)
+        {
+            DU_LOG("\nERROR  -> DU_APP : duUpdateTunnelCfgDb: Failed to add tunnel req for Drb id[%d]",
+           duUeCfg->upTnlInfo[drbIdx].drbId);
+           ret = RFAILED;
+           break;
+        }
+      }
+      else
+         break;
+   }
+   return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief @brief To update DuUeCb Mac and Rlc Ue Cfg
+ * 
+ *
+ * @details
+ *
+ *    Function : duUpdateDuUeCbCfg
+ *
+ *    Functionality: update DuUeCb Mac and Rlc Ue Cfg
+ *
+ * @params[in] ueIdx, cellIdx 
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
 
-   DU_ALLOC(ueCfg, sizeof(CkwCfgInfo));
+uint8_t duUpdateDuUeCbCfg(uint8_t ueIdx, uint8_t cellId)
+{
+   uint8_t ret = ROK, cellIdx = 0, crnti=0;
+   DuUeCb *ueCb = NULLP;
 
-#ifdef EGTP_TEST
-   ueCfg->ueId = UE_ID;
-#endif
-   ueCfg->cellId = NR_CELL_ID;
-   ueCfg->numEnt = 1;
+   GET_CELL_IDX(cellId, cellIdx);
    
-   for(idx = 0; idx < ueCfg->numEnt; idx++)
+   if((duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].macUeCfg. \
+         macUeCfgState == UE_RECFG_COMPLETE) &&
+      (duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1].rlcUeCfg. \
+         rlcUeCfgState == UE_RECFG_COMPLETE))
+   {
+      ueCb = &duCb.actvCellLst[cellIdx]->ueCb[ueIdx-1];
+
+      /*Filling RLC Ue Cfg */
+      ueCb->rlcUeCfg.cellId = cellId;
+      ueCb->rlcUeCfg.ueIdx  = ueIdx;
+      ret = duUpdateRlcLcCfg(&ueCb->rlcUeCfg, ueCb->f1UeDb);
+      if(ret == ROK)
+      {
+         /*Filling MAC Ue Cfg */
+         GET_CRNTI(crnti, ueIdx);
+         ueCb->macUeCfg.cellId = cellId;
+         ueCb->macUeCfg.ueIdx  = ueIdx;
+         ueCb->macUeCfg.crnti  = crnti;
+         ret = duUpdateMacCfg(&ueCb->macUeCfg, ueCb->f1UeDb);
+         if(ret == RFAILED)
+            DU_LOG("\nERROR  -->  DU APP : Failed while updating MAC LC Config at duUpdateDuUeCbCfg()");
+         else
+        {
+           if(duUpdateTunnelCfgDb(ueIdx, cellId, &ueCb->f1UeDb->duUeCfg) != ROK)
+           {
+               DU_LOG("\nERROR  -->  DU_APP : Failed to establish tunnel in duUpdateDuUeCbCfg()");
+              return RFAILED;
+           }
+        }
+      }
+      else
+         DU_LOG("\nERROR  -->  DU APP : Failed while updating RLC LC Config at duUpdateDuUeCbCfg()");
+   }
+   else
+      ret = RFAILED;
+   return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Handle UE config response from MAC
+ *
+ * @details
+ *
+ *    Function : DuProcMacUeCfgRsp
+ *
+ *    Functionality: Handle UE Config response from MAC
+ *
+ * @params[in] Pointer to MacUeCfgRsp and Pst 
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t DuProcMacUeCfgRsp(Pst *pst, MacUeCfgRsp *cfgRsp)
+{
+   uint8_t ret = ROK;
+
+   if(cfgRsp)
    {
-#ifdef EGTP_TEST
-      ueCfg->entCfg[idx].rbId           = RB_ID;
-      ueCfg->entCfg[idx].rbType         = CM_LTE_DRB;
-      ueCfg->entCfg[idx].lCh[0].lChId   = LC_ID;
-      ueCfg->entCfg[idx].lCh[0].type    = CM_LTE_LCH_DTCH;
-#endif
-      ueCfg->entCfg[idx].entMode        = CM_LTE_MODE_UM;
-      ueCfg->entCfg[idx].dir            = CKW_CFG_DIR_BOTH;
-      switch(ueCfg->entCfg[idx].entMode)
+      if(cfgRsp->result == MAC_DU_APP_RSP_OK)
       {
-         case CM_LTE_MODE_TM:
+         if(pst->event == EVENT_MAC_UE_CREATE_RSP)
          {
-            break;
+            DU_LOG("\nINFO   -->  DU APP : MAC UE Create Response : SUCCESS [UE IDX : %d]", cfgRsp->ueIdx);
+            duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueIdx -1].\
+               macUeCfg.macUeCfgState = UE_CREATE_COMPLETE;
          }
-
-         case CM_LTE_MODE_UM:
+         else if(pst->event == EVENT_MAC_UE_RECONFIG_RSP)
          {
-            ueCfg->entCfg[idx].m.umInfo.dl.snLen = 1;      /* For 12 bit SN */
-            ueCfg->entCfg[idx].m.umInfo.ul.snLen = 1;      /* For 12 bit SN */
-            ueCfg->entCfg[idx].m.umInfo.ul.reOrdTmr = 10;  /* in msec */
-            break;
+            DU_LOG("\nINFO   -->  DU APP : MAC UE Reconfig Response : SUCCESS [UE IDX : %d]", cfgRsp->ueIdx);
+            duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueIdx -1].\
+               macUeCfg.macUeCfgState = UE_RECFG_COMPLETE;
+            if((ret = duUpdateDuUeCbCfg(cfgRsp->ueIdx, cfgRsp->cellId)) == ROK)
+            {
+               BuildAndSendUeCtxtRsp(cfgRsp->ueIdx, cfgRsp->cellId);
+               duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueIdx -1].\
+                  macUeCfg.macUeCfgState = 0;
+            }
          }
-
-         case CM_LTE_MODE_AM:
+      }
+      else
+      {
+         DU_LOG("\nERROR  -->  DU APP : MAC UE CFG Response for EVENT[%d]: FAILURE [UE IDX : %d]", pst->event, cfgRsp->ueIdx);
+         if(pst->event == EVENT_MAC_UE_RECONFIG_RSP)
          {
-            break;
+            //TODO: Send the failure case in Ue Context Setup Response
          }
-         
-         defualt:
-            break;
-      } /* End of switch(entMode) */
-   } /* End of entity configuration for loop */
+         ret = RFAILED;
+      }
+      DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, cfgRsp, sizeof(MacUeCfgRsp));
+   }
+   else
+   {
+      DU_LOG("\nERROR  -->  DU APP : Received MAC Ue Config Response is NULL at DuProcMacUeCfgRsp()");
+      ret = RFAILED;
+   }
+   return ret;
+}
 
-   /* Fill Pst */
-   pst.selector  = DU_SELECTOR_LWLC;
-   pst.srcEnt    = ENTDUAPP;
-   pst.dstEnt    = ENTKW;
-   pst.dstInst   = RLC_UL_INST;
-   pst.dstProcId = DU_PROC;
-   pst.srcProcId = DU_PROC;
-   pst.region    = duCb.init.region;
 
-   /* Sending to RLC */
-   packUeCreateReq(&pst, ueCfg);
+/*******************************************************************
+ *
+ * @brief Processes UE create Req to RLC UL
+ *
+ * @details
+ *
+ *    Function : duBuildAndSendUeCreateReqToRlc
+ *
+ *    Functionality: 
+ *     Processes UE create Req to RLC UL
+ * 
+ *  @params[in]  cellId,
+ *               ueIdx,
+ *               Pointer to RlcUeCfg
+ *  @return ROK     - success
+ *          RFAILED - failure
+ * 
+ *****************************************************************/
+
+uint8_t duBuildAndSendUeCreateReqToRlc(uint16_t cellId, uint8_t ueIdx,\
+   RlcUeCfg *duRlcUeCfg)
+{
+   uint8_t  ret = ROK;
+   RlcUeCfg *rlcUeCfg = NULLP;
+   Pst       pst;
+  
+   ret = fillRlcUeCfg(cellId, ueIdx, NULL, duRlcUeCfg);
+   if(ret == RFAILED)
+   {
+      DU_LOG("\nERROR  -->  DU APP : Failed to fill Rlc Ue Cfg at duBuildAndSendUeCreateReqToRlc()");
+      return ret;
+   }
 
-   RETVALUE(ROK); 
-} /* End of duSendUeCreateReqToRlc */
+   FILL_PST_DUAPP_TO_RLC(pst, RLC_UL_INST, EVENT_RLC_UE_CREATE_REQ);
+   /* Copying ueCfg to a sharable buffer */
+   DU_ALLOC_SHRABL_BUF(rlcUeCfg, sizeof(RlcUeCfg));
+   if(rlcUeCfg)
+   {
+      memset(rlcUeCfg, 0, sizeof(RlcUeCfg));
+      memcpy(rlcUeCfg, duRlcUeCfg, sizeof(RlcUeCfg));
+      /* Processing one Ue at a time to RLC */
+      DU_LOG("\nDEBUG   -->  DU_APP: Sending UE create request to RLC UL");
+      ret = (*packRlcUeCreateReqOpts[pst.selector])(&pst, rlcUeCfg);
+      if(ret == RFAILED)
+      {
+         DU_LOG("\nERROR  -->  DU_APP : Failure in sending Ue Create Req to RLC");
+         DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, rlcUeCfg, sizeof(RlcUeCfg));
+         ret = RFAILED;
+      }
+   }
+   else
+   {
+      DU_LOG("\n ERROR  -->  DU APP : Memory alloc failed at duBuildAndSendUeCreateReqToRlc()");
+      ret = RFAILED;
+   }
+   return ret;
+}
 
 /*******************************************************************
  *
- * @brief Handles EGTP data from CU 
+ * @brief Processes UE create Rsp received from RLC UL
  *
  * @details
  *
- *    Function : duHdlEgtpData
+ *    Function : DuProcRlcUeCfgRsp
  *
  *    Functionality: 
- *      Processes EGTP header and sends data to RLC
+ *     Processes UE create Rsp received from RLC UL
+ * 
+ *  @params[in]  Post structure
+ *               Pointer to RlcCfgCfm
+ *  @return ROK     - success
+ *          RFAILED - failure
+ * 
+ *****************************************************************/
+uint8_t DuProcRlcUeCfgRsp(Pst *pst, RlcUeCfgRsp *cfgRsp)
+{
+   uint8_t ret = ROK;
+
+   if(cfgRsp)
+   {
+      if(cfgRsp->result == RLC_DU_APP_RSP_OK)
+      {
+         if(pst->event == EVENT_RLC_UE_CREATE_RSP)
+         {
+            DU_LOG("\nINFO   -->  DU_APP: RLC UE Create Response : SUCCESS [UE IDX:%d]", cfgRsp->ueIdx);
+            duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueIdx -1].\
+               rlcUeCfg.rlcUeCfgState = UE_CREATE_COMPLETE;
+         }
+         else if(pst->event == EVENT_RLC_UE_RECONFIG_RSP)
+         {
+            DU_LOG("\nINFO   -->  DU_APP: RLC UE Reconfig Response : SUCCESS [UE IDX:%d]", cfgRsp->ueIdx);
+            duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueIdx -1].\
+               rlcUeCfg.rlcUeCfgState = UE_RECFG_COMPLETE;
+            if((ret = duUpdateDuUeCbCfg(cfgRsp->ueIdx, cfgRsp->cellId)) == ROK)
+            {
+               BuildAndSendUeCtxtRsp(cfgRsp->ueIdx, cfgRsp->cellId);
+               duCb.actvCellLst[cfgRsp->cellId -1]->ueCb[cfgRsp->ueIdx -1].\
+                  rlcUeCfg.rlcUeCfgState = 0;
+            }   
+         }
+      }
+      else
+      {
+         DU_LOG("\nERROR  -->  DU_APP: RLC UE CFG Response for EVENT[%d] : FAILED [UE IDX : %d, REASON :%d]",\
+               pst->event, cfgRsp->ueIdx, cfgRsp->reason);
+         if((pst->event == EVENT_RLC_UE_RECONFIG_RSP))
+         {
+            //TODO: update failure case in ue Context setup Response
+         }
+         ret = RFAILED;
+      }
+      DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, cfgRsp, sizeof(RlcUeCfgRsp));
+   }
+   else
+   {
+      DU_LOG("\nERROR  -->  DU_APP: Received RLC Ue Config Response is NULL at DuProcRlcUeCfgRsp()");
+      ret = RFAILED;
+   }
+   return ret;
+}
+
+/*******************************************************************
  *
- * @params[in]  Pointer to EGTP Message 
+ * @brief Builds and Send Ue Reconfig Req to RLC
+ *
+ * @details
+ *
+ *    Function : duBuildAndSendUeReCfgReqToRLC
+ *
+ *    Functionality: Builds and Send Ue Reconfig Req to RLC
+ *
+ * @params[in] cellId, crnti
+ *             DuUeCfg *ueCfgDb
+ *             RlcUeCfg *rlcUeCfg
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-S16 duHdlEgtpDlData(EgtpMsg  *egtpMsg)
+
+uint8_t duBuildAndSendUeReCfgReqToRlc(uint8_t cellId, uint8_t crnti, DuUeCfg *ueCfgDb)
 {
-   /* TODO : Extract RbId/UeID/CellID/SduId from database
-      using tunnel id in egtp header */
-   
-   DU_LOG("\nDU_APP : Processing DL data");
-   
-   Pst pst;
-   KwuDatReqInfo datReqInfo;
+   uint8_t ret = ROK, ueIdx = 0;
+   RlcUeCfg *rlcUeCfg = NULLP;
 
-#ifdef EGTP_TEST
-   datReqInfo.rlcId.rbId = RB_ID;
-   datReqInfo.rlcId.rbType = CM_LTE_DRB;
-   datReqInfo.rlcId.ueId = UE_ID;
-   datReqInfo.rlcId.cellId = NR_CELL_ID;
-   
-   datReqInfo.sduId = ++sduId;
-   datReqInfo.lcType = CM_LTE_LCH_DTCH;
-#endif
-   /* Filling pst and Sending to RLC DL */
-   pst.selector  = DU_SELECTOR_LWLC;
-   pst.srcEnt    = ENTDUAPP;
-   pst.dstEnt    = ENTKW;
-   pst.dstInst   = RLC_DL_INST;
-   pst.dstProcId = DU_PROC;
-   pst.srcProcId = DU_PROC;
-   pst.region    = duCb.init.region;
-
-   cmPkKwuDatReq(&pst, &datReqInfo, egtpMsg->msg);
-   return ROK;
+   GET_UE_IDX(crnti, ueIdx);
+   DU_ALLOC_SHRABL_BUF(rlcUeCfg, sizeof(RlcUeCfg));
+   if(rlcUeCfg)
+   {
+      memset(rlcUeCfg, 0, sizeof(RlcUeCfg));
+      ret = fillRlcUeCfg(cellId, ueIdx, ueCfgDb, rlcUeCfg);
+      if(ret == RFAILED)
+         DU_LOG("\nERROR  -->  DU APP : Failed at duBuildAndSendUeReCfgReqToRlc()");
+      else
+         ret = sendUeReCfgReqToRlc(rlcUeCfg);
+   }
+   else
+   {
+      DU_LOG("\nERROR  -->  DU APP : Memory Alloc failed at duBuildAndSendUeReCfgReqToRlc()");
+      ret = RFAILED;
+   }
+   return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Builds and Send Ue Reconfig Req to MAC
+ *
+ * @details
+ *
+ *    Function : duBuildAndSendUeReCfgReqToMac
+ *
+ *    Functionality: Builds and Send Ue Reconfig Req to MAC
+ *
+ * @params[in] CellGroupConfigRrc_t *macCellGrpCfg
+ *             DuUeCfg *ueCfgDb
+ *             MacUeCfg    *macUeCfg
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+
+uint8_t duBuildAndSendUeReCfgReqToMac(uint8_t cellId, uint8_t crnti, DuUeCfg *ueCfgDb)
+{
+   uint8_t ret, ueIdx = 0;
+   MacUeCfg *macUeCfg = NULLP;
+
+   ret = ROK;
+   GET_UE_IDX(crnti, ueIdx);
+
+   DU_ALLOC_SHRABL_BUF(macUeCfg, sizeof(MacUeCfg));
+   if(macUeCfg)
+   {
+      memset(macUeCfg, 0, sizeof(MacUeCfg));
+      ret = fillMacUeCfg(cellId, ueIdx, crnti, ueCfgDb, macUeCfg);
+      if(ret == RFAILED)
+         DU_LOG("\nERROR  -->  DU APP : Failed to fill Mac Ue Cfg at duBuildAndSendUeReCfgReqToMac()");
+      else
+         ret = sendUeReCfgReqToMac(macUeCfg);
+   }
+   else
+   {
+      DU_LOG("\nERROR  -->  DU APP : Memory alloc failed for macUeCfg at duBuildAndSendUeReCfgReqToMac()");
+      ret = RFAILED;
+   }
+   return ret;
 }
 
 /*******************************************************************
  *
- * @brief Handles UL data and send to CU
+ * @brief Build and Send Ue context setup request
  *
  * @details
  *
- *    Function : duHdlRlcUlData
+ *    Function : duBuildAndSendUeContextSetupReq
  *
  *    Functionality: 
- *     Processes UL Data from RLC and sends to CU
+ *     Build and Send Ue context setup request
  * 
- *  @params[in]  Pointer to EGTP Message 
+ *  @params[in]  cellId, crnti, DuUeCfg pointer
  *  @return ROK     - success
  *          RFAILED - failure
  * 
  *****************************************************************/
 
-PUBLIC S16 duHdlRlcUlData(Pst *pst, KwuDatIndInfo* datInd, Buffer *mBuf)
+uint8_t duBuildAndSendUeContextSetupReq(uint16_t cellId, uint16_t crnti, DuUeCfg *duUeCfg)
 {
-   DU_LOG("\nDU_APP : Received UL Data at DU_APP");
+   uint8_t ret = ROK;
+
+   DU_LOG("\nDEBUG   -->  DU_APP: Processing Ue Context Setup Request for cellId [%d]", cellId);
+   /* Filling RLC Ue Reconfig */ 
+   ret = duBuildAndSendUeReCfgReqToRlc(cellId, crnti, duUeCfg);
+   if(ret == RFAILED)
+      DU_LOG("\nERROR  -->  DU APP : Failed to build ctxt setup req for RLC at duBuildAndSendUeContextSetupReq()");
+   
+   /* Filling MAC Ue Reconfig */
+   ret = duBuildAndSendUeReCfgReqToMac(cellId, crnti, duUeCfg);
+   if(ret == RFAILED)
+      DU_LOG("\nERROR  -->  DU APP : Failed at build ctxt setup req for MAC at duBuildAndSendUeContextSetupReq()");
+
+   return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Processes DL Rsp received from RLC DL
+ *
+ * @details
+ *
  
-   /* Send UL data to CU via EGTP */
-   duSendEgtpDatInd(mBuf);
-   SPutMsg(mBuf);
+ *    Function : DuProcRlcDlRrcMsgRsp
+ *
+ *    Functionality: 
+ *     Processes UE Rsp received from RLC DL
+ * 
+ *  @params[in]  Post structure
+ *               Pointer to RlcCfgCfm
+ *  @return ROK     - success
+ *          RFAILED - failure
+ * 
+ *****************************************************************/
+uint8_t DuProcRlcDlRrcMsgRsp(Pst *pst, RlcDlRrcMsgRsp *dlRrcMsg)
+{
+   uint8_t ret = ROK, ueIdx = 0;
+   DuUeCb *ueCb = NULLP;
 
-   return ROK;
+   if(dlRrcMsg->state == TRANSMISSION_COMPLETE)
+   {
+      GET_UE_IDX(dlRrcMsg->crnti, ueIdx);
+      ueCb = &duCb.actvCellLst[dlRrcMsg->cellId -1]->ueCb[ueIdx -1];
+      if(ueCb->f1UeDb && ueCb->f1UeDb->dlRrcMsgPres)
+      {
+         if(ueCb->f1UeDb->actionType == UE_CTXT_SETUP)
+         {
+            ret = duBuildAndSendUeContextSetupReq(dlRrcMsg->cellId, dlRrcMsg->crnti, &ueCb->f1UeDb->duUeCfg);
+            if(ret == RFAILED)
+               DU_LOG("\nERROR  -->  DU APP : Failed to process UE Context Setup Request in DuProcRlcDlRrcMsgRsp()");
+         }
+         if(ueCb->f1UeDb->actionType == UE_CTXT_MOD)
+         {
+            ret = duBuildAndSendUeContextModReq(dlRrcMsg->cellId, dlRrcMsg->crnti, &ueCb->f1UeDb->duUeCfg);
+            if(ret == RFAILED)
+               DU_LOG("\nERROR  -->  DU APP : Failed to process UE Context Mod Request in DuProcRlcDlRrcMsgRsp()");
+         }
+      }
+   }
+   else
+      DU_LOG("\nERROR  -->  DU APP : Failed to transmit DL RRC Msg");
+
+   DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, dlRrcMsg, sizeof(RlcDlRrcMsgRsp));
+   return ret;
+}
+/*******************************************************************
+ *
+ * @brief Process UE context setup request from CU
+ *
+ * @details
+ *
+ *    Function : duProcUeContextSetupRequest
+ *
+ *    Functionality: Process UE context setup request from CU
+ *
+ * @params[in] F1AP message
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+
+uint8_t duProcUeContextSetupRequest(DuUeCb *ueCb)
+{
+   uint8_t ret, cellId;
+
+   ret = ROK;
+   if(ueCb)
+   {
+      cellId = duCb.actvCellLst[ueCb->f1UeDb->cellIdx]->cellId;
+      /* Send DL RRC msg for security Mode */
+      if(ueCb->f1UeDb->dlRrcMsg)
+      {
+         if(ueCb->f1UeDb->dlRrcMsg->rrcMsgPdu)
+         {
+            /* Sending DL RRC Message to RLC */
+            ret = duBuildAndSendDlRrcMsgToRlc(cellId, ueCb->rlcUeCfg, ueCb->f1UeDb->dlRrcMsg);
+            if(ret == RFAILED)
+            {
+               DU_LOG("\nERROR  -->  DU APP : Failed to send DL RRC msg in duProcUeContextSetupRequest()");
+               DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, ueCb->f1UeDb->dlRrcMsg->rrcMsgPdu,\
+                     ueCb->f1UeDb->dlRrcMsg->rrcMsgSize);
+               DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, ueCb->f1UeDb->dlRrcMsg, sizeof(F1DlRrcMsg));
+            }
+         }
+      }
+      else if(ueCb->f1UeDb->actionType == UE_CTXT_SETUP)
+      {
+         ret = duBuildAndSendUeContextSetupReq(cellId, ueCb->crnti, &ueCb->f1UeDb->duUeCfg);
+         if(ret == RFAILED)
+         {
+            DU_LOG("\nERROR  -->  DU APP : Failed to build ue context setup Req in duProcUeContextSetupRequest()");
+         }
+      }
+   }
+   else
+   {
+      //TODO: To send the failure cause in UeContextSetupRsp
+      DU_LOG("ERROR  -->  DU APP : Failed to process UE CNTXT SETUP REQ at duProcUeContextSetupRequest()");
+   }
+   return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Build and Send Ue context mod request
+ *
+ * @details
+ *
+ *
+ *    Function : duBuildAndSendUeContextModReq
+ *
+ *    Functionality: 
+ *     Build and Send Ue context mod request
+ * 
+ *  @params[in]  cellId, crnti, DuUeCfg pointer
+ *  @return ROK     - success
+ *          RFAILED - failure
+ * 
+ *****************************************************************/
+
+uint8_t duBuildAndSendUeContextModReq(uint16_t cellId, uint16_t crnti, DuUeCfg *duUeCfg)
+{
+   uint8_t ret = ROK;
+
+   DU_LOG("\nDEBUG   -->  DU_APP: Processing Ue Context Mod Request for cellId [%d]", cellId);
+   /* Filling RLC Ue Reconfig */ 
+   ret = duBuildAndSendUeReCfgReqToRlc(cellId, crnti, duUeCfg);
+   if(ret == RFAILED)
+      DU_LOG("\nERROR  -->  DU APP : Failed to build ctxt setup req for RLC at duBuildAndSendUeContextModReq()");
+   
+   /* Filling MAC Ue Reconfig */
+   ret = duBuildAndSendUeReCfgReqToMac(cellId, crnti, duUeCfg);
+   if(ret == RFAILED)
+      DU_LOG("\nERROR  -->  DU APP : Failed at build ctxt setup req for MAC at duBuildAndSendUeContextModReq()");
+
+   return ret;
 }
+/*******************************************************************
+ *
+ * @brief Processing Ue context mod request
+ *
+ * @details
+ *
+ *
+ *    Function : duProcUeContextModReq 
+ *
+ *    Functionality:
+ *        Processing  Ue context mod request
+ *
+ *  @params[in] DuUeCb *ueCb 
+ *  @return ROK     - success
+ *          RFAILED - failure
+ *
+ *****************************************************************/
 
+uint8_t duProcUeContextModReq(DuUeCb *ueCb)
+{
+   uint8_t ret, cellId;
+
+   ret = ROK;
+   if(ueCb)
+   {
+      cellId = duCb.actvCellLst[ueCb->f1UeDb->cellIdx]->cellId;
+      /* Send DL RRC msg for security Mode */
+      if(ueCb->f1UeDb->dlRrcMsg)
+      {
+         if(ueCb->f1UeDb->dlRrcMsg->rrcMsgPdu)
+         {
+            /* Sending DL RRC Message to RLC */
+            ret = duBuildAndSendDlRrcMsgToRlc(cellId, ueCb->rlcUeCfg, ueCb->f1UeDb->dlRrcMsg);
+            if(ret == RFAILED)
+            {
+               DU_LOG("\nERROR  -->  DU APP : Failed to send DL RRC msg in duProcUeContextModReq()");
+               DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, ueCb->f1UeDb->dlRrcMsg->rrcMsgPdu,\
+                     ueCb->f1UeDb->dlRrcMsg->rrcMsgSize);
+               DU_FREE_SHRABL_BUF(DU_APP_MEM_REGION, DU_POOL, ueCb->f1UeDb->dlRrcMsg, sizeof(F1DlRrcMsg));
+            }
+         }
+      }
+      else
+      {
+         ret = duBuildAndSendUeContextModReq(cellId, ueCb->crnti, &ueCb->f1UeDb->duUeCfg);
+         if(ret == RFAILED)
+         {
+            DU_LOG("\nERROR  -->  DU APP : Failed to build ue context setup Req in duProcUeContextModReq()");
+         }
+      }
+   }
+   else
+   {
+      //TODO: To send the failure cause in UeContextModRsp
+      DU_LOG("ERROR  -->  DU APP : Failed to process UE CNTXT MOD REQ at duProcUeContextModReq()");
+   }
+   return ROK;
+}
 /**********************************************************************
-         End of file
-***********************************************************************/
+  End of file
+ ***********************************************************************/