[Epic-ID: ODUHIGH-402][Task-ID: ODUHIGH-418] Harq feature changes
[o-du/l2.git] / src / 5gnrmac / mac_msg_hdl.c
index 9a9e3f1..f167513 100644 (file)
 #   See the License for the specific language governing permissions and        #
 #   limitations under the License.                                             #
 ################################################################################
-*******************************************************************************/
+ *******************************************************************************/
 
 /* header include files -- defines (.h)  */
-#include "envopt.h"        /* environment options */
-#include "envdep.h"        /* environment dependent */
-#include "envind.h"        /* environment independent */
-#include "gen.h"           /* general layer */
-#include "ssi.h"           /* system services */
-#include "cm5.h"           /* common timers defines */
-#include "cm_hash.h"       /* common hash list defines */
-#include "cm_llist.h"      /* common linked list defines */
-#include "cm_mblk.h"       /* memory management */
-#include "cm_tkns.h"       /* common tokens */
-#include "cm_lte.h"        /* common tokens */
-#include "rgu.h"
-#include "tfu.h"
-#include "rg_sch_inf.h"
-#include "rg_env.h"
+#include "common_def.h"
 #include "lrg.h"
-#include "crg.h"
-#include "rg.h"
-#include "du_log.h"
-
-/* header/extern include files (.x) */
-#include "gen.x"           /* general layer typedefs */
-#include "ssi.x"           /* system services typedefs */
-#include "cm5.x"           /* common timers */
-#include "cm_hash.x"       /* common hash list */
-#include "cm_lib.x"        /* common library */
-#include "cm_llist.x"      /* common linked list */
-#include "cm_mblk.x"       /* memory management */
-#include "cm_tkns.x"       /* common tokens */
-#include "cm_lte.x"        /* common tokens */
-#include "rgu.x"
-#include "tfu.x"
-#include "rg_sch_inf.x"
 #include "lrg.x"
-#include "crg.x"
-#include "rg_prg.x"
 #include "du_app_mac_inf.h"
-#include "rg.x"
+#include "mac_sch_interface.h"
+#include "rlc_mac_inf.h"
+#include "mac_upr_inf_api.h"
+#include "lwr_mac.h"
+#ifdef INTEL_FAPI
 #include "fapi_interface.h"
+#endif
+#include "lwr_mac_fsm.h"
+#include "lwr_mac_upr_inf.h"
+#include "mac.h"
+#include "mac_utils.h"
+#include "mac_harq_dl.h"
 
 /* This file contains message handling functionality for MAC */
 
+MacCb  macCb;
+
+/* Function pointer for sending crc ind from MAC to SCH */
+MacSchCrcIndFunc macSchCrcIndOpts[]=
+{
+   packMacSchCrcInd,
+   MacSchCrcInd,
+   packMacSchCrcInd
+};
+
+/* Function pointer for sending DL RLC BO Info from MAC to SCH */
+MacSchDlRlcBoInfoFunc macSchDlRlcBoInfoOpts[]=
+{
+   packMacSchDlRlcBoInfo,
+   MacSchDlRlcBoInfo,
+   packMacSchDlRlcBoInfo
+};
+
+/* Function pointer for sending short BSR from MAC to SCH */
+MacSchBsrFunc macSchBsrOpts[]=
+{
+   packMacSchBsr,
+   MacSchBsr,
+   packMacSchBsr
+};
+
+/* Function pointer for sending SR Uci ind from MAC to SCH */
+MacSchSrUciIndFunc macSchSrUciIndOpts[]=
+{
+   packMacSchSrUciInd,
+   MacSchSrUciInd,
+   packMacSchSrUciInd
+};
+
+/* Function pointer for sending HARQ Uci ind from MAC to SCH */
+MacSchHarqUciIndFunc macSchHarqUciIndOpts[]=
+{
+   packMacSchHarqUciInd,
+   MacSchHarqUciInd,
+   packMacSchHarqUciInd
+};
+
+/* Function pointer for sending Slice cfg  ind from MAC to SCH */
+MacSchSliceCfgReqFunc macSchSliceCfgReqOpts[]=
+{
+   packMacSchSliceCfgReq,
+   MacSchSliceCfgReq,
+   packMacSchSliceCfgReq
+};
+
+/* Function pointer for sending Slice cfg  ind from MAC to SCH */
+MacSchSliceReCfgReqFunc macSchSliceReCfgReqOpts[]=
+{
+   packMacSchSliceReCfgReq,
+   MacSchSliceReCfgReq,
+   packMacSchSliceReCfgReq
+};
+/*******************************************************************
+ *
+ * @brief Sends DL BO Info to SCH
+ *
+ * @details
+ *
+ *    Function : sendDlRlcBoInfoToSch
+ *
+ *    Functionality:
+ *       Sends DL BO Info to SCH
+ *
+ * @params[in] 
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ ****************************************************************/
+uint8_t sendDlRlcBoInfoToSch(DlRlcBoInfo *dlBoInfo)
+{
+   Pst pst;
+
+   FILL_PST_MAC_TO_SCH(pst, EVENT_DL_RLC_BO_INFO_TO_SCH);
+   return(*macSchDlRlcBoInfoOpts[pst.selector])(&pst, dlBoInfo);
+}
+
+/*******************************************************************
+ *
+ * @brief Sends CRC Indication to SCH
+ *
+ * @details
+ *
+ *    Function : sendCrcIndMacToSch 
+ *
+ *    Functionality:
+ *       Sends CRC Indication to SCH
+ *
+ * @params[in] 
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ ****************************************************************/
+uint8_t sendCrcIndMacToSch(CrcIndInfo *crcInd)
+{
+   Pst pst;
+
+   FILL_PST_MAC_TO_SCH(pst, EVENT_CRC_IND_TO_SCH);
+   return(*macSchCrcIndOpts[pst.selector])(&pst, crcInd);
+}
+
+/*******************************************************************
+ *
+ * @brief Processes CRC Indication from PHY
+ *
+ * @details
+ *
+ *    Function : fapiMacCrcInd
+ *
+ *    Functionality:
+ *       Processes CRC Indication from PHY
+ *
+ * @params[in] Post Structure Pointer
+ *             Crc Indication Pointer
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t fapiMacCrcInd(Pst *pst, CrcInd *crcInd)
+{
+   uint16_t     cellIdx;
+   CrcIndInfo   crcIndInfo;
+   DU_LOG("\nDEBUG  -->  MAC : Received CRC indication");
+   GET_CELL_IDX(crcInd->cellId, cellIdx);
+   /* Considering one pdu and one preamble */ 
+   crcIndInfo.cellId = macCb.macCell[cellIdx]->cellId;
+   crcIndInfo.crnti = crcInd->crcInfo[0].rnti;
+   crcIndInfo.timingInfo.sfn = crcInd->timingInfo.sfn;
+   crcIndInfo.timingInfo.slot = crcInd->timingInfo.slot;
+   crcIndInfo.numCrcInd = crcInd->crcInfo[0].numCb;
+   crcIndInfo.crcInd[0] = crcInd->crcInfo[0].cbCrcStatus[0];
+
+   MAC_FREE_SHRABL_BUF(pst->region, pst->pool, crcInd, sizeof(CrcInd));
+   return(sendCrcIndMacToSch(&crcIndInfo));
+}
+
+/*******************************************************************
+ *
+ * @brief Process Rx Data Ind at MAC
+ *
+ * @details
+ *
+ *    Function : fapiMacRxDataInd
+ *
+ *    Functionality:
+ *       Process Rx Data Ind at MAC
+ *
+ * @params[in] Post structure
+ *             Rx Data Indication
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t fapiMacRxDataInd(Pst *pst, RxDataInd *rxDataInd)
+{
+   uint8_t ueId = 0;
+   uint16_t pduIdx, cellIdx = 0;
+   DU_LOG("\nDEBUG  -->  MAC : Received Rx Data indication");
+   /* TODO : compare the handle received in RxDataInd with handle send in PUSCH
+    * PDU, which is stored in raCb */
+
+   for(pduIdx = 0; pduIdx < rxDataInd->numPdus; pduIdx++)
+   {
+
+      GET_CELL_IDX(rxDataInd->cellId, cellIdx);
+      GET_UE_ID(rxDataInd->pdus[pduIdx].rnti, ueId);
+      
+      if(macCb.macCell[cellIdx] && macCb.macCell[cellIdx]->ueCb[ueId -1].transmissionAction == STOP_TRANSMISSION)
+      {
+         DU_LOG("\nINFO   -->  MAC : UL data transmission not allowed for UE %d", macCb.macCell[cellIdx]->ueCb[ueId -1].ueId);
+      }
+      else
+      {
+         unpackRxData(rxDataInd->cellId, rxDataInd->timingInfo, &rxDataInd->pdus[pduIdx]);
+      }
+      MAC_FREE_SHRABL_BUF(pst->region, pst->pool, rxDataInd->pdus[pduIdx].pduData,\
+         rxDataInd->pdus[pduIdx].pduLength);
+   }
+   MAC_FREE_SHRABL_BUF(pst->region, pst->pool, rxDataInd, sizeof(RxDataInd));
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Processes DL data from RLC
+ *
+ * @details
+ *
+ *    Function : MacProcRlcDlData 
+ *
+ *    Functionality:
+ *      Processes DL data from RLC
+ *
+ * @params[in] Post structure
+ *             DL data
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t MacProcRlcDlData(Pst* pstInfo, RlcData *dlData)
+{
+   uint8_t   pduIdx = 0;
+   uint8_t   ueId  = 0;
+   uint8_t   lcIdx = 0;
+   uint8_t   *txPdu = NULLP;
+   uint8_t   schInfoIdx = 0 ;
+   uint16_t  cellIdx = 0, txPduLen = 0;
+   MacDlData macDlData;
+   MacDlSlot *currDlSlot = NULLP;
+   DlRlcBoInfo dlBoInfo;
+
+   memset(&macDlData , 0, sizeof(MacDlData));
+   DU_LOG("\nDEBUG  -->  MAC: Received DL data for sfn=%d slot=%d numPdu= %d", \
+      dlData->slotInfo.sfn, dlData->slotInfo.slot, dlData->numPdu);
+
+   GET_UE_ID(dlData->rnti, ueId);   
+
+   /* Copy the pdus to be muxed into mac Dl data */
+   macDlData.ueId = ueId;
+   macDlData.numPdu = dlData->numPdu;
+   for(pduIdx = 0;  pduIdx < dlData->numPdu; pduIdx++)
+   {
+      macDlData.pduInfo[pduIdx].lcId = dlData->pduInfo[pduIdx].lcId;
+      macDlData.pduInfo[pduIdx].pduLen = dlData->pduInfo[pduIdx].pduLen;
+      macDlData.pduInfo[pduIdx].dlPdu = dlData->pduInfo[pduIdx].pduBuf;
+   }
+
+   GET_CELL_IDX(dlData->cellId, cellIdx);
+   /* Store DL data in the scheduled slot */
+   if(macCb.macCell[cellIdx] ==NULLP)
+   {
+      DU_LOG("\nERROR  -->  MAC : MacProcRlcDlData(): macCell does not exists");
+      return RFAILED;
+   }
+   currDlSlot = &macCb.macCell[cellIdx]->dlSlot[dlData->slotInfo.slot];
+   if(currDlSlot->dlInfo.dlMsgAlloc[ueId-1])
+   {
+      for(schInfoIdx=0; schInfoIdx<currDlSlot->dlInfo.dlMsgAlloc[ueId-1]->numSchedInfo; schInfoIdx++)
+      {
+         if((currDlSlot->dlInfo.dlMsgAlloc[ueId-1]->dlMsgSchedInfo[schInfoIdx].pduPres == PDSCH_PDU) ||
+               (currDlSlot->dlInfo.dlMsgAlloc[ueId-1]->dlMsgSchedInfo[schInfoIdx].pduPres == BOTH))
+            break;
+      }
+
+      txPduLen = currDlSlot->dlInfo.dlMsgAlloc[ueId-1]->dlMsgSchedInfo[schInfoIdx].dlMsgPdschCfg.codeword[0].tbSize\
+                 - TX_PAYLOAD_HDR_LEN;
+      MAC_ALLOC(txPdu, txPduLen);
+      if(!txPdu)
+      {
+         DU_LOG("\nERROR  -->  MAC : Memory allocation failed in MacProcRlcDlData");
+         return RFAILED;
+      }
+      macMuxPdu(&macDlData, NULLP, txPdu, txPduLen);
+
+      currDlSlot->dlInfo.dlMsgAlloc[ueId-1]->dlMsgSchedInfo[schInfoIdx].dlMsgInfo.dlMsgPduLen = txPduLen;
+      currDlSlot->dlInfo.dlMsgAlloc[ueId-1]->dlMsgSchedInfo[schInfoIdx].dlMsgInfo.dlMsgPdu = txPdu;
+      /* Add muxed TB to DL HARQ Proc CB. This will be used if retranmission of
+       * TB is requested in future. */
+      updateNewTbInDlHqProcCb(dlData->slotInfo, &macCb.macCell[cellIdx]->ueCb[ueId -1], \
+         currDlSlot->dlInfo.dlMsgAlloc[ueId-1]->dlMsgSchedInfo[schInfoIdx].dlMsgPdschCfg.codeword[0].tbSize, txPdu);
+   }
+
+   for(lcIdx = 0; lcIdx < dlData->numLc; lcIdx++)
+   {
+      if(dlData->boStatus[lcIdx].bo)
+      {
+         memset(&dlBoInfo, 0, sizeof(DlRlcBoInfo));
+         dlBoInfo.cellId = dlData->boStatus[lcIdx].cellId;
+         GET_CRNTI(dlBoInfo.crnti, dlData->boStatus[lcIdx].ueId);
+         dlBoInfo.lcId = dlData->boStatus[lcIdx].lcId;
+         dlBoInfo.dataVolume = dlData->boStatus[lcIdx].bo;
+         sendDlRlcBoInfoToSch(&dlBoInfo);
+      }
+   }
+
+   /* Free memory */
+   for(pduIdx = 0; pduIdx < dlData->numPdu; pduIdx++)
+   {
+      MAC_FREE_SHRABL_BUF(pstInfo->region, pstInfo->pool, dlData->pduInfo[pduIdx].pduBuf,\
+            dlData->pduInfo[pduIdx].pduLen);
+   }
+   if(pstInfo->selector == ODU_SELECTOR_LWLC)
+   {
+      MAC_FREE_SHRABL_BUF(pstInfo->region, pstInfo->pool, dlData, sizeof(RlcData));
+   }
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Builds and Sends UL Data to RLC
+ *
+ * @details
+ *
+ *    Function : macProcUlData
+ *
+ *    Functionality: Builds and Sends UL Data to RLC
+ *
+ * @params[in] CellId
+ *             CRNTI
+ *             Slot information
+ *             LC Id on which payload was received
+ *             Pointer to the payload
+ *             Length of payload
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t macProcUlData(uint16_t cellId, uint16_t rnti, SlotTimingInfo slotInfo, \
+uint8_t lcId, uint16_t pduLen, uint8_t *pdu)
+{
+   Pst         pst;
+   RlcData     *ulData;
+
+   /* Filling RLC Ul Data*/
+   MAC_ALLOC_SHRABL_BUF(ulData, sizeof(RlcData));
+   if(!ulData)
+   {
+      DU_LOG("\nERROR  -->  MAC : Memory allocation failed while sending UL data to RLC");
+      return RFAILED;
+   }
+   memset(ulData, 0, sizeof(RlcData));
+   ulData->cellId = cellId; 
+   ulData->rnti = rnti;
+   memcpy(&ulData->slotInfo, &slotInfo, sizeof(SlotTimingInfo));
+   ulData->slotInfo.cellId = cellId;
+
+   /* Filling pdu info */
+   if(lcId != SRB0_LCID)
+      ulData->pduInfo[ulData->numPdu].commCh = false;
+   else
+      ulData->pduInfo[ulData->numPdu].commCh = true;
+
+   ulData->pduInfo[ulData->numPdu].lcId = lcId;
+   ulData->pduInfo[ulData->numPdu].pduBuf = pdu;
+   ulData->pduInfo[ulData->numPdu].pduLen = pduLen;
+   ulData->numPdu++;
+
+   /* Filling Post and send to RLC */
+   memset(&pst, 0, sizeof(Pst));
+   FILL_PST_MAC_TO_RLC(pst, 0, EVENT_UL_DATA_TO_RLC);
+   MacSendUlDataToRlc(&pst, ulData);
+
+   return ROK;
+}
+
+
+/*******************************************************************
+ *
+ * @brief Processes BO status from RLC
+ *
+ * @details
+ *
+ *    Function : MacProcRlcBOStatus
+ *
+ *    Functionality:
+ *      Processes BO status from RLC
+ *
+ * @params[in] Post structure
+ *             BO status
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t MacProcRlcBoStatus(Pst* pst, RlcBoStatus* boStatus)
+{
+   DlRlcBoInfo  dlBoInfo;
+
+   dlBoInfo.cellId = boStatus->cellId;
+   GET_CRNTI(dlBoInfo.crnti, boStatus->ueId);
+   dlBoInfo.lcId = boStatus->lcId;
+   dlBoInfo.dataVolume = boStatus->bo;
+   
+   sendDlRlcBoInfoToSch(&dlBoInfo); 
+
+   if(pst->selector == ODU_SELECTOR_LWLC)
+   {
+      MAC_FREE_SHRABL_BUF(pst->region, pst->pool, boStatus, sizeof(RlcBoStatus));
+   }
+
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Send LC schedule result report to RLC
+ *
+ * @details
+ *
+ *    Function : sendSchRptToRlc 
+ *
+ *    Functionality: Send LC schedule result report to RLC
+ *
+ * @params[in] 
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t sendSchedRptToRlc(DlSchedInfo dlInfo, SlotTimingInfo slotInfo, uint8_t ueIdx, uint8_t schInfoIdx)
+{
+   Pst      pst;
+   uint8_t  lcIdx;
+   RlcSchedResultRpt  *schedRpt = NULLP;
+   
+   MAC_ALLOC_SHRABL_BUF(schedRpt, sizeof(RlcSchedResultRpt));
+   if(!schedRpt)
+   {
+      DU_LOG("\nERROR  -->  MAC: Memory allocation failure in sendSchResultRepToRlc");
+      return RFAILED;
+   }
+
+   DU_LOG("\nDEBUG  -->  MAC: Send scheduled result report for sfn %d slot %d", slotInfo.sfn, slotInfo.slot);
+   schedRpt->cellId = dlInfo.cellId;
+   schedRpt->slotInfo.sfn = slotInfo.sfn;
+   schedRpt->slotInfo.slot = slotInfo.slot;
+
+   if(dlInfo.dlMsgAlloc[ueIdx])
+   {
+      schedRpt->rnti = dlInfo.dlMsgAlloc[ueIdx]->crnti;
+      schedRpt->numLc = dlInfo.dlMsgAlloc[ueIdx]->dlMsgSchedInfo[schInfoIdx].numLc;
+      for(lcIdx = 0; lcIdx < schedRpt->numLc; lcIdx++)
+      {
+         schedRpt->lcSch[lcIdx].lcId = dlInfo.dlMsgAlloc[ueIdx]->dlMsgSchedInfo[schInfoIdx].lcSchInfo[lcIdx].lcId;
+         schedRpt->lcSch[lcIdx].bufSize = dlInfo.dlMsgAlloc[ueIdx]->dlMsgSchedInfo[schInfoIdx].lcSchInfo[lcIdx].schBytes;
+         schedRpt->lcSch[lcIdx].commCh = false;
+      }
+   }
+
+   /* Fill Pst */
+   FILL_PST_MAC_TO_RLC(pst, RLC_DL_INST, EVENT_SCHED_RESULT_TO_RLC);
+   if(MacSendSchedResultRptToRlc(&pst, schedRpt) != ROK)
+   {
+      DU_LOG("\nERROR  -->  MAC: Failed to send Schedule result report to RLC");
+      MAC_FREE_SHRABL_BUF(MAC_MEM_REGION, MAC_POOL, schedRpt, sizeof(RlcSchedResultRpt));
+      return RFAILED;
+   }
+
+   return ROK;
+}
+
 /*******************************************************************
  *
  * @brief Handles cell start reuqest from DU APP
  *
  * @details
  *
- *    Function : MacHdlCellStartReq
+ *    Function : MacProcCellStart
  *
  *    Functionality:
  *      Handles cell start reuqest from DU APP
  *
  * @params[in] Post structure pointer
- *             Cell Start Request info pointer 
+ *             Cell Id 
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t MacProcCellStart(Pst *pst, OduCellId  *cellId)
+{
+   DU_LOG("\nINFO  -->  MAC : Handling cell start request");
+   gSlotCount = 0;
+   sendToLowerMac(START_REQUEST, 0, cellId);
+
+   MAC_FREE_SHRABL_BUF(pst->region, pst->pool, cellId, \
+        sizeof(OduCellId));
+
+   return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief Handles cell stop from DU APP
+ *
+ * @details
+ *
+ *    Function : MacProcCellStop
+ *
+ *    Functionality:
+ *        Handles cell stop from DU APP
+ *
+ * @params[in] Post structure pointer
+ *             Cell Id
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint16_t MacHdlCellStartReq(Pst *pst, MacCellStartInfo  *cellStartInfo)
+uint8_t MacProcCellStop(Pst *pst, OduCellId  *cellId)
 {
-   DU_LOG("\nMAC : Handling cell start request");
-   //sendToLowerMac(START_REQ, 0, cellStartInfo);
+#ifdef INTEL_FAPI
+   uint16_t      cellIdx; 
+
+   DU_LOG("\nINFO  -->  MAC : Sending cell stop request to Lower Mac");
+   GET_CELL_IDX(cellId->cellId, cellIdx);
+   if(macCb.macCell[cellIdx])
+   {
+      macCb.macCell[cellIdx]->state = CELL_TO_BE_STOPPED;
+   }
+#endif
 
-   MAC_FREE_MEM(pst->region, pst->pool, cellStartInfo, \
-          sizeof(MacCellStartInfo));
+   MAC_FREE_SHRABL_BUF(pst->region, pst->pool, cellId, \
+        sizeof(OduCellId));
 
    return ROK;
 }
 
 /*******************************************************************
  *
- * @brief Handles cell stop request from DU APP
+ * @brief Handles DL CCCH Ind from DU APP
  *
  * @details
  *
- *    Function : MacHdlCellStartReq
+ *    Function : MacProcDlCcchInd 
  *
  *    Functionality:
- *        Handles cell stop request from DU APP
+ *      Handles DL CCCH Ind from DU APP
  *
  * @params[in] Post structure pointer
- *             Mac Cell stop information
+ *             DL CCCH Ind pointer 
  * @return ROK     - success
  *         RFAILED - failure
  *
  * ****************************************************************/
-uint16_t MacHdlCellStopReq(Pst *pst, MacCellStopInfo  *cellStopInfo)
+uint8_t MacProcDlCcchInd(Pst *pst, DlCcchIndInfo *dlCcchIndInfo)
 {
-   DU_LOG("\nMAC : Handling cell start request");
-   //sendToLowerMac(STOP_REQ, 0, cellStopInfo);
+   uint8_t      ueId = 0, ueIdx = 0;
+   uint16_t     cellIdx;
+   uint16_t     idx;
+   DlRlcBoInfo  dlBoInfo;
+   memset(&dlBoInfo, 0, sizeof(DlRlcBoInfo));
 
-   MAC_FREE_MEM(pst->region, pst->pool, cellStopInfo, \
-          sizeof(MacCellStopInfo));
+   DU_LOG("\nDEBUG  -->  MAC : Handling DL CCCH IND");
+
+   GET_CELL_IDX(dlCcchIndInfo->cellId, cellIdx);
+
+   dlBoInfo.cellId = dlCcchIndInfo->cellId;
+   dlBoInfo.crnti = dlCcchIndInfo->crnti;
+
+   if(dlCcchIndInfo->msgType == RRC_SETUP)
+   {
+      dlBoInfo.lcId = SRB0_LCID;    // SRB ID 0 for msg4
+      /* (MSG4 pdu + 3 bytes sub-header) + (Contention resolution id MAC CE + 1 byte sub-header) */
+      dlBoInfo.dataVolume = (dlCcchIndInfo->dlCcchMsgLen + 3) + (MAX_CRI_SIZE + 1);
+
+      /* storing Msg4 Pdu in raCb */
+      GET_UE_ID(dlBoInfo.crnti, ueId);
+      ueIdx = ueId -1;
+      if(macCb.macCell[cellIdx]->macRaCb[ueIdx].crnti == dlCcchIndInfo->crnti)
+      {
+        macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4PduLen = dlCcchIndInfo->dlCcchMsgLen;
+        MAC_ALLOC(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4Pdu, \
+           macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4PduLen);
+        if(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4Pdu)
+        {
+           for(idx = 0; idx < dlCcchIndInfo->dlCcchMsgLen; idx++)
+           {
+              macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4Pdu[idx] =\
+                 dlCcchIndInfo->dlCcchMsg[idx];
+           }
+        }
+      }
+   }
+   sendDlRlcBoInfoToSch(&dlBoInfo);
+
+   MAC_FREE_SHRABL_BUF(pst->region, pst->pool, dlCcchIndInfo->dlCcchMsg, \
+        dlCcchIndInfo->dlCcchMsgLen);
+   MAC_FREE_SHRABL_BUF(pst->region, pst->pool, dlCcchIndInfo, sizeof(DlCcchIndInfo));
    return ROK;
+
+}
+
+/*******************************************************************
+ *
+ * @brief Sends UL CCCH Ind to DU APP
+ *
+ * @details
+ *
+ *    Function : macProcUlCcchInd
+ *
+ *    Functionality:
+ *        MAC sends UL CCCH Ind to DU APP
+ *
+ * @params[in] Post structure pointer
+ *            
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t macProcUlCcchInd(uint16_t cellId, uint16_t crnti, uint16_t rrcContSize, uint8_t *rrcContainer)
+{
+   Pst pst;
+   uint8_t ret = ROK;
+   UlCcchIndInfo *ulCcchIndInfo = NULLP;
+
+   MAC_ALLOC_SHRABL_BUF(ulCcchIndInfo, sizeof(UlCcchIndInfo));
+   if(!ulCcchIndInfo)
+   {
+      DU_LOG("\nERROR  -->  MAC: Memory failed in macProcUlCcchInd");
+      return RFAILED;
+   }
+
+   ulCcchIndInfo->cellId = cellId;
+   ulCcchIndInfo->crnti  = crnti;
+   ulCcchIndInfo->ulCcchMsgLen = rrcContSize;
+   ulCcchIndInfo->ulCcchMsg = rrcContainer;
+
+   /* Fill Pst */
+   FILL_PST_MAC_TO_DUAPP(pst, EVENT_MAC_UL_CCCH_IND);
+
+   if(MacDuAppUlCcchInd(&pst, ulCcchIndInfo) != ROK)
+   {
+      DU_LOG("\nERROR  -->  MAC: Failed to send UL CCCH Ind to DU APP");
+      MAC_FREE_SHRABL_BUF(MAC_MEM_REGION, MAC_POOL, ulCcchIndInfo->ulCcchMsg, ulCcchIndInfo->ulCcchMsgLen);
+      MAC_FREE_SHRABL_BUF(MAC_MEM_REGION, MAC_POOL, ulCcchIndInfo, sizeof(UlCcchIndInfo));
+      ret = RFAILED;
+   }
+   return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Processes received short BSR
+ *
+ * @details
+ *
+ *    Function : macProcShortBsr
+ *
+ *    Functionality:
+ *        MAC sends Short BSR to SCH
+ *
+ * @params[in] cell ID
+ *             crnti
+ *             lcg ID
+ *             buffer size
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t macProcShortBsr(uint16_t cellId, uint16_t crnti, uint8_t lcgId, uint32_t bufferSize)
+{
+   Pst                  pst;
+   UlBufferStatusRptInd bsrInd;
+
+   memset(&pst, 0, sizeof(Pst));
+   memset(&bsrInd, 0, sizeof(UlBufferStatusRptInd));
+
+   bsrInd.cellId                 = cellId;
+   bsrInd.crnti                  = crnti;
+   bsrInd.bsrType                = SHORT_BSR;
+   bsrInd.numLcg                 = 1; /* short bsr reports one lcg at a time */
+   bsrInd.dataVolInfo[0].lcgId   = lcgId;
+   bsrInd.dataVolInfo[0].dataVol = bufferSize;
+
+   FILL_PST_MAC_TO_SCH(pst, EVENT_SHORT_BSR);
+   return(*macSchBsrOpts[pst.selector])(&pst, &bsrInd);
+}
+
+/*******************************************************************
+ *
+ * @brief Processes received short BSR
+ *
+ * @details
+ *
+ *    Function : macProcShortBsr
+ *
+ *    Functionality:
+ *        MAC sends Short BSR to SCH
+ *
+ * @params[in] cell ID
+ *             crnti
+ *             lcg ID
+ *             buffer size
+ *
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t macProcLongBsr(uint16_t cellId, uint16_t crnti,uint8_t numLcg,\
+                         DataVolInfo dataVolInfo[MAX_NUM_LOGICAL_CHANNEL_GROUPS])
+{
+   Pst                  pst;
+   UlBufferStatusRptInd bsrInd;
+   uint8_t lcgIdx = 0;
+
+   memset(&pst, 0, sizeof(Pst));
+   memset(&bsrInd, 0, sizeof(UlBufferStatusRptInd));
+
+   bsrInd.cellId                 = cellId;
+   bsrInd.crnti                  = crnti;
+   bsrInd.bsrType                = LONG_BSR;
+   bsrInd.numLcg                 = numLcg; 
+
+   for(lcgIdx = 0; lcgIdx < numLcg; lcgIdx++)
+      memcpy(&(bsrInd.dataVolInfo[lcgIdx]), &(dataVolInfo[lcgIdx]), sizeof(DataVolInfo));
+
+   FILL_PST_MAC_TO_SCH(pst, EVENT_LONG_BSR);
+   return(*macSchBsrOpts[pst.selector])(&pst, &bsrInd);
+}
+
+/*******************************************************************
+ *
+ * @brief Builds and send HARQ UCI Indication to SCH
+ *
+ * @details
+ *
+ *    Function : buildAndSendHarqInd
+ *
+ *    Functionality:
+ *       Builds and send HARQ UCI Indication to SCH
+ *
+ * @params[in] harqInfo Pointer
+ *             crnti value
+ *             cell Index value
+ *             slot Ind Pointer
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t buildAndSendHarqInd(HarqInfoF0F1 *harqInfo, uint8_t crnti, uint16_t cellIdx, SlotTimingInfo *slotInd)
+{
+   uint16_t harqCounter=0;
+   Pst pst;
+   HarqUciIndInfo   harqUciInd;
+   memset(&pst, 0, sizeof(Pst));
+   memset(&harqUciInd, 0, sizeof(HarqUciIndInfo));
+
+   harqUciInd.cellId       = macCb.macCell[cellIdx]->cellId;
+   harqUciInd.crnti        = crnti;
+   harqUciInd.slotInd.sfn  = slotInd->sfn;
+   harqUciInd.slotInd.slot = slotInd->slot;
+   harqUciInd.numHarq = harqInfo->numHarq;
+   memset(harqUciInd.harqPayload, 0, MAX_SR_BITS_IN_BYTES);
+   for(harqCounter = 0; harqCounter < harqInfo->numHarq; harqCounter++)
+   {
+      harqUciInd.harqPayload[harqCounter] = harqInfo->harqValue[harqCounter];
+   }
+   
+   /* Fill Pst */
+   FILL_PST_MAC_TO_SCH(pst, EVENT_UCI_IND_TO_SCH);
+
+   return(*macSchHarqUciIndOpts[pst.selector])(&pst, &harqUciInd);
+}
+
+
+/*******************************************************************
+ *
+ * @brief Builds and send SR UCI Indication to SCH
+ *
+ * @details
+ *
+ *    Function : buildAndSendSrInd
+ *
+ *    Functionality:
+ *       Builds and send SR UCI Indication to SCH
+ *
+ * @params[in] SrUciIndInfo Pointer
+ *             crnti value
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t buildAndSendSrInd(UciInd *macUciInd, uint8_t crnti)
+{
+   uint16_t cellIdx;
+   Pst pst;
+   SrUciIndInfo   srUciInd;
+   memset(&pst, 0, sizeof(Pst));
+   memset(&srUciInd, 0, sizeof(SrUciIndInfo));
+
+   GET_CELL_IDX(macUciInd->cellId, cellIdx);
+   srUciInd.cellId       = macCb.macCell[cellIdx]->cellId;
+   srUciInd.crnti        = crnti;
+   srUciInd.slotInd.sfn  = macUciInd->slotInd.sfn;
+   srUciInd.slotInd.slot = macUciInd->slotInd.slot;
+   srUciInd.numSrBits++;
+   memset(srUciInd.srPayload, 0, MAX_SR_BITS_IN_BYTES);
+
+   /* Fill Pst */
+   FILL_PST_MAC_TO_SCH(pst, EVENT_UCI_IND_TO_SCH);
+
+   return(*macSchSrUciIndOpts[pst.selector])(&pst, &srUciInd);
+}
+
+/*******************************************************************
+ *
+ * @brief Processes UCI Indication from PHY
+ *
+ * @details
+ *
+ *    Function : fapiMacUciInd
+ *
+ *    Functionality:
+ *       Processes UCI Indication from PHY
+ *
+ * @params[in] Post Structure Pointer
+ *             UCI Indication Pointer
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t FapiMacUciInd(Pst *pst, UciInd *macUciInd)
+{
+   uint8_t     pduIdx = 0, ret = ROK;
+   uint16_t    nPdus = 0, crnti = 0, cellIdx = 0;
+
+   if(macUciInd)
+   {
+      nPdus = macUciInd->numUcis;
+      while(nPdus)
+      {
+         switch(macUciInd->pdus[pduIdx].pduType)
+         {
+            case UCI_IND_PUSCH:
+               break;
+            case UCI_IND_PUCCH_F0F1:
+            {
+               {
+                  DU_LOG("\nDEBUG  -->  MAC : Received HARQ UCI Indication\n");
+                  GET_CELL_IDX(macUciInd->cellId, cellIdx);
+                  buildAndSendHarqInd(&macUciInd->pdus[pduIdx].uci.uciPucchF0F1.harqInfo, macUciInd->pdus[pduIdx].uci.uciPucchF0F1.crnti, cellIdx, &macUciInd->slotInd);
+               }
+               if(macUciInd->pdus[pduIdx].uci.uciPucchF0F1.srInfo.srIndPres)
+               {
+                  DU_LOG("\nDEBUG  -->  MAC : Received SR UCI indication");
+                  crnti = macUciInd->pdus[pduIdx].uci.uciPucchF0F1.crnti; 
+                  ret = buildAndSendSrInd(macUciInd, crnti);
+               }
+            }
+               break;
+            case UCI_IND_PUCCH_F2F3F4:
+               break;
+            default:
+               DU_LOG("\nERROR  -->  MAC: Invalid Pdu Type %d at FapiMacUciInd", macUciInd->pdus[pduIdx].pduType);
+               ret = RFAILED;
+               break;
+         }
+         pduIdx++;
+         nPdus--;
+      }
+   }
+   else
+   {
+      DU_LOG("\nERROR  -->  MAC: Received Uci Ind is NULL at FapiMacUciInd()");
+      ret = RFAILED;
+   }
+   MAC_FREE_SHRABL_BUF(pst->region, pst->pool, macUciInd, sizeof(UciInd));
+   return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief fill Slice Cfg Request info in shared structre
+ * 
+ * @details
+ *
+ *    Function : fillSliceCfgInfo 
+ *
+ *    Functionality:
+ *       fill Slice Cfg Request info in shared structre
+ *
+ * @params[in] SchSliceCfgReq *schSliceCfgReq 
+ *             MacSliceCfgReq *macSliceCfgReq;
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ **********************************************************************/
+ uint8_t fillSliceCfgInfo(SchSliceCfgReq *schSliceCfgReq, MacSliceCfgReq *macSliceCfgReq)
+ {
+    uint8_t cfgIdx = 0;
+    
+    if(macSliceCfgReq->listOfSliceCfg)
+    {
+       schSliceCfgReq->numOfConfiguredSlice =  macSliceCfgReq->numOfConfiguredSlice;
+       MAC_ALLOC(schSliceCfgReq->listOfConfirguration, schSliceCfgReq->numOfConfiguredSlice *sizeof(SchRrmPolicyOfSlice*));
+       if(schSliceCfgReq->listOfConfirguration == NULLP)
+       {
+          DU_LOG("\nERROR  -->  MAC : Memory allocation failed in fillSliceCfgInfo");
+          return RFAILED;
+       }
+       for(cfgIdx = 0; cfgIdx<schSliceCfgReq->numOfConfiguredSlice; cfgIdx++)
+       {
+          MAC_ALLOC(schSliceCfgReq->listOfConfirguration[cfgIdx], sizeof(SchRrmPolicyOfSlice));
+          if(schSliceCfgReq->listOfConfirguration[cfgIdx] == NULLP)
+          {
+             DU_LOG("\nERROR  -->  MAC : Memory allocation failed in fillSliceCfgInfo");
+             return RFAILED;
+          }
+          
+          memcpy(&schSliceCfgReq->listOfConfirguration[cfgIdx]->snssai, &macSliceCfgReq->listOfSliceCfg[cfgIdx]->snssai, sizeof(Snssai));
+
+          if(macSliceCfgReq->listOfSliceCfg[cfgIdx]->rrmPolicyRatio)
+          {
+             MAC_ALLOC(schSliceCfgReq->listOfConfirguration[cfgIdx]->rrmPolicyRatioInfo, sizeof(SchRrmPolicyRatio));
+             if(schSliceCfgReq->listOfConfirguration[cfgIdx]->rrmPolicyRatioInfo == NULLP)
+             {
+                DU_LOG("\nERROR  -->  MAC : Memory allocation failed in fillSliceCfgInfo");
+                return RFAILED;
+             }
+             schSliceCfgReq->listOfConfirguration[cfgIdx]->rrmPolicyRatioInfo->policyMaxRatio = macSliceCfgReq->listOfSliceCfg[cfgIdx]->rrmPolicyRatio->policyMaxRatio;
+             schSliceCfgReq->listOfConfirguration[cfgIdx]->rrmPolicyRatioInfo->policyMinRatio = macSliceCfgReq->listOfSliceCfg[cfgIdx]->rrmPolicyRatio->policyMinRatio;
+             schSliceCfgReq->listOfConfirguration[cfgIdx]->rrmPolicyRatioInfo->policyDedicatedRatio = macSliceCfgReq->listOfSliceCfg[cfgIdx]->rrmPolicyRatio->policyDedicatedRatio;
+          }
+       }
+    }
+    return ROK;
+ }
+/*******************************************************************
+ *
+ * @brief Processes Slice Cfg Request recived from DU
+ *
+ * @details
+ *
+ *    Function : MacProcSliceCfgReq 
+ *
+ *    Functionality:
+ *       Processes Processes Slice Cfg Request recived from DU
+ *
+ * @params[in] Post Structure Pointer
+ *             MacSliceCfgReq *macSliceCfgReq;
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ **********************************************************************/
+uint8_t MacProcSliceCfgReq(Pst *pst, MacSliceCfgReq *macSliceCfgReq)
+{
+   uint8_t ret = ROK;
+   Pst schPst;
+   SchSliceCfgReq *schSliceCfgReq;
+
+   DU_LOG("\nINFO  -->  MAC : Received Slice Cfg request from DU APP");
+   if(macSliceCfgReq)
+   {
+      MAC_ALLOC(schSliceCfgReq, sizeof(SchSliceCfgReq));
+      if(schSliceCfgReq == NULLP)
+      {
+         DU_LOG("\nERROR -->  MAC : Memory allocation failed in MacProcSliceCfgReq");
+         ret = RFAILED;
+      }
+      else
+      {
+         if(fillSliceCfgInfo(schSliceCfgReq, macSliceCfgReq) == ROK)
+         {
+            FILL_PST_MAC_TO_SCH(schPst, EVENT_SLICE_CFG_REQ_TO_SCH);
+            ret = (*macSchSliceCfgReqOpts[schPst.selector])(&schPst, schSliceCfgReq);
+         }
+      }
+      freeMacSliceCfgReq(macSliceCfgReq, pst); 
+   }
+   else
+   {
+      DU_LOG("\nINFO  -->  MAC : Received MacSliceCfgReq is NULL");
+   }
+   return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Processes Slice ReCfg Request recived from DU
+ *
+ * @details
+ *
+ *    Function : MacProcSliceReCfgReq 
+ *
+ *    Functionality:
+ *       Processes Processes Slice ReCfg Request recived from DU
+ *
+ * @params[in] Post Structure Pointer
+ *             MacSliceCfgReq *macSliceReCfgReq;
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ **********************************************************************/
+uint8_t MacProcSliceReCfgReq(Pst *pst, MacSliceCfgReq *macSliceReCfgReq)
+{
+   uint8_t ret = ROK;
+   Pst schPst;
+   SchSliceCfgReq *schSliceReCfgReq;
+
+   DU_LOG("\nINFO  -->  MAC : Received Slice ReCfg request from DU APP");
+   if(macSliceReCfgReq)
+   {
+      MAC_ALLOC(schSliceReCfgReq, sizeof(SchSliceCfgReq));
+      if(schSliceReCfgReq == NULLP)
+      {
+         DU_LOG("\nERROR -->  MAC : Memory allocation failed in MacProcSliceReCfgReq");
+         ret = RFAILED;
+      }
+      else
+      {
+         if(fillSliceCfgInfo(schSliceReCfgReq, macSliceReCfgReq) == ROK)
+         {
+            FILL_PST_MAC_TO_SCH(schPst, EVENT_SLICE_RECFG_REQ_TO_SCH);
+            ret = (*macSchSliceReCfgReqOpts[schPst.selector])(&schPst, schSliceReCfgReq);
+         }
+
+      }
+      freeMacSliceCfgReq(macSliceReCfgReq, pst);
+   }
+   else
+   {
+      DU_LOG("\nINFO  -->  MAC : Received MacSliceCfgReq is NULL");
+   }
+   return ret;
 }
 
 /**********************************************************************
-         End of file
-**********************************************************************/
+  End of file
+ **********************************************************************/