X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=src%2F5gnrmac%2Fmac_slot_ind.c;h=cbcf1c347d5c7bd8a4ead567c86526475d879bd5;hb=bb267bb17ec2897af706e7307790d3b1e5b3ea8d;hp=51b07f41fb725273f17fe21f7f39c30f8e3314d9;hpb=5ea4c59cb4dd37164953218b0bd355284e11d22c;p=o-du%2Fl2.git

diff --git a/src/5gnrmac/mac_slot_ind.c b/src/5gnrmac/mac_slot_ind.c
index 51b07f41f..cbcf1c347 100644
--- a/src/5gnrmac/mac_slot_ind.c
+++ b/src/5gnrmac/mac_slot_ind.c
@@ -16,38 +16,582 @@
 ################################################################################
  *******************************************************************************/
 /* header include files (.h) */
-#include "envopt.h"        /* environment options */
-#include "envdep.h"        /* environment dependent */
-#include "envind.h"        /* environment independent */
-#include "gen.h"           /* general */
-#include "ssi.h"           /* system services */
-#include "cm_tkns.h"       /* Common Token Defines */
-#include "cm_llist.h"      /* Common Link List Defines */
-#include "cm_hash.h"       /* Common Hash List Defines */
-#include "cm_mblk.h"       /* common memory link list library */
-#include "cm_lte.h"        /* Common LTE Defines */
-#include "tfu.h"           /* RGU Interface includes */
+#include "common_def.h"
 #include "lrg.h"
-#include "gen.x"           /* general */
-#include "ssi.x"           /* system services */
-#include "cm5.x"           /* system services */
-#include "cm_tkns.x"       /* Common Token Definitions */
-#include "cm_llist.x"      /* Common Link List Definitions */
-#include "cm_lib.x"        /* Common Library Definitions */
-#include "cm_hash.x"       /* Common Hash List Definitions */
-#include "cm_mblk.x"       /* common memory link list library */
-#include "cm_lte.x"        /* Common LTE Defines */
-#include "tfu.x"           /* RGU Interface includes */
 #include "lrg.x"
 #include "du_app_mac_inf.h"
 #include "mac_sch_interface.h"
+#include "lwr_mac_upr_inf.h"
+#include "rlc_mac_inf.h"
+#include "mac.h"
+#include "mac_upr_inf_api.h"
+#include "lwr_mac.h"
+#include "lwr_mac_fsm.h"
+#include "mac_utils.h"
+#include "mac_harq_dl.h"
+#include "lwr_mac_phy.h"
 
-int MacProcDlBrdcstAlloc(Pst *pst, DlBrdcstAlloc *dlBrdcstAlloc)
+/**
+ * @brief process DL allocation from scheduler
+ *
+ * @details
+ *
+ *     Function : MacProcDlAlloc 
+ *      
+ *      This function copied dl sch info in the mac slot info
+ *           
+ *  @param[in]  Pst            *pst
+ *  @param[in]  DL allocation from scheduler
+ *  @return
+ *      -# ROK 
+ *      -# RFAILED 
+ **/
+uint8_t MacProcDlAlloc(Pst *pst, DlSchedInfo *dlSchedInfo)
 {
+   uint8_t   schInfoIdx = 0, cwIdx = 0;
+   uint8_t   ueId = 0, ueIdx = 0;
+   uint16_t  cellIdx = 0;
+   uint8_t   *retxTb = NULLP, *txPdu = NULLP;
+   uint16_t  txPduLen = 0;
+   MacDlSlot      *currDlSlot = NULLP;
+   DlMsgSchInfo   *schedInfo;
+   DlHarqProcCb   *hqProcCb = NULLP;
 
+#ifdef CALL_FLOW_DEBUG_LOG
+   DU_LOG("\nCall Flow: ENTSCH -> ENTMAC : EVENT_DL_SCH_INFO\n");
+#endif
+   if(dlSchedInfo != NULLP)
+   {
+      GET_CELL_IDX(dlSchedInfo->cellId, cellIdx);
+      if(dlSchedInfo->isBroadcastPres)
+      {
+         currDlSlot = &macCb.macCell[cellIdx]->\
+                      dlSlot[dlSchedInfo->schSlotValue.broadcastTime.slot];
+         currDlSlot->dlInfo.isBroadcastPres = true;
+         memcpy(&currDlSlot->dlInfo.brdcstAlloc, &dlSchedInfo->brdcstAlloc, sizeof(DlBrdcstAlloc));
+      }
+
+      for(ueIdx=0; ueIdx<MAX_NUM_UE; ueIdx++)
+      {
+         if(dlSchedInfo->rarAlloc[ueIdx] != NULLP)
+         {
+            currDlSlot = &macCb.macCell[cellIdx]->dlSlot[dlSchedInfo->schSlotValue.rarTime.slot];
+            currDlSlot->dlInfo.rarAlloc[ueIdx] = dlSchedInfo->rarAlloc[ueIdx];
+
+            /* MUXing of RAR */
+            fillRarPdu(&currDlSlot->dlInfo.rarAlloc[ueIdx]->rarInfo);
+         }
+
+         if(dlSchedInfo->dlMsgAlloc[ueIdx] != NULLP)
+         {
+            currDlSlot = &macCb.macCell[cellIdx]->\
+                         dlSlot[dlSchedInfo->schSlotValue.dlMsgTime.slot];
+            currDlSlot->dlInfo.dlMsgAlloc[ueIdx] = dlSchedInfo->dlMsgAlloc[ueIdx]; /* copy msg4 alloc pointer in MAC slot info */
+            currDlSlot->dlInfo.cellId = dlSchedInfo->cellId;
+            
+            if(dlSchedInfo->dlMsgAlloc[ueIdx]->dlMsgPdcchCfg && dlSchedInfo->dlMsgAlloc[ueIdx]->dlMsgPdcchCfg->coresetCfg.coreSetType == CORESET_TYPE0)
+            {
+               MAC_ALLOC(macCb.macCell[cellIdx]->macRaCb[ueIdx].macMsg4Status, sizeof(bool));
+            }
+
+            /* Check if the downlink pdu is msg4 */
+            if((macCb.macCell[cellIdx]->macRaCb[ueIdx].macMsg4Status))
+            {
+               GET_UE_ID(dlSchedInfo->dlMsgAlloc[ueIdx]->crnti, ueId);
+               ueIdx = ueId -1;
+               schedInfo = dlSchedInfo->dlMsgAlloc[ueIdx];
+               hqProcCb = &macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4HqInfo;
+
+               if(!dlSchedInfo->dlMsgAlloc[ueIdx]->transportBlock[0].ndi)
+               {
+                  /* First transmission of MSG4 */
+                  hqProcCb->procId = schedInfo->harqProcNum;
+                  for(cwIdx = 0; cwIdx < schedInfo->dlMsgPdschCfg->numCodewords; cwIdx++)
+                  {
+                     memcpy(&hqProcCb->tbInfo[hqProcCb->numTb].txTime, &dlSchedInfo->schSlotValue.dlMsgTime, \
+                           sizeof(SlotTimingInfo));
+                     hqProcCb->tbInfo[hqProcCb->numTb].tbSize = schedInfo->dlMsgPdschCfg->codeword[cwIdx].tbSize;
+                     hqProcCb->numTb++;
+                  }
+               }
+               else
+               {
+                  /* MSG4 retransmission */
+                  if(hqProcCb->procId == schedInfo->harqProcNum)
+                  {
+                     memcpy(&hqProcCb->tbInfo[0].txTime, &dlSchedInfo->schSlotValue.dlMsgTime, \
+                           sizeof(SlotTimingInfo));
+                  }
+               }
+            }
+            else
+            {
+               memcpy(&currDlSlot->dlInfo.schSlotValue, &dlSchedInfo->schSlotValue, sizeof(SchSlotValue));
+
+               if(!dlSchedInfo->dlMsgAlloc[ueIdx]->transportBlock[0].ndi)
+               {
+                  /* If new data transmission is scheduled, send schedule results to RLC */
+                  if(dlSchedInfo->dlMsgAlloc[ueIdx]->dlMsgPdschCfg) 
+                  {
+                     sendSchedRptToRlc(currDlSlot->dlInfo, dlSchedInfo->schSlotValue.dlMsgTime, ueIdx, schInfoIdx);
+
+                     /* Add HARQ Proc to DL HARQ Proc Entity in UE */
+                     addDlHqProcInUe(currDlSlot->dlInfo.schSlotValue.dlMsgTime, &macCb.macCell[cellIdx]->ueCb[ueIdx], \
+                           dlSchedInfo->dlMsgAlloc[ueIdx]);
+                  }
+               }
+               else
+               {
+                  /* For retransmission, fetch PDU to be retransmitted from DL HARQ entity and schedule on corresponding slot */
+
+                  /* As of now this loop will run only once for one TB. 
+                   * TODO : update handling of fetched TB appropriately when support for two TB is added 
+                   */
+                  for(cwIdx = 0; cwIdx < dlSchedInfo->dlMsgAlloc[ueIdx]->dlMsgPdschCfg->numCodewords; cwIdx++)
+                  {
+                     /* Fetch TB to be retransmitted */
+                     txPduLen = dlSchedInfo->dlMsgAlloc[ueIdx]->dlMsgPdschCfg->codeword[cwIdx].tbSize;
+                     retxTb = fetchTbfromDlHarqProc(currDlSlot->dlInfo.schSlotValue.dlMsgTime, \
+                           &macCb.macCell[cellIdx]->ueCb[ueIdx], \
+                           dlSchedInfo->dlMsgAlloc[ueIdx]->harqProcNum, txPduLen);
+
+                     /* Store PDU in corresponding DL slot */
+                     MAC_ALLOC(txPdu, txPduLen);
+                     if(!txPdu)
+                     {
+                        DU_LOG("\nERROR  -->  MAC : Memory allocation failed in MacProcDlAlloc");
+                        return RFAILED;
+                     }   
+                     memcpy(txPdu, retxTb,  txPduLen);
+
+                     currDlSlot->dlInfo.dlMsgAlloc[ueIdx]->dlMsgPduLen = txPduLen;
+                     currDlSlot->dlInfo.dlMsgAlloc[ueIdx]->dlMsgPdu = txPdu;
+                  }
+               }
+            }
+         }
+      }
+
+      if(dlSchedInfo->ulGrant != NULLP)
+      {
+         currDlSlot = &macCb.macCell[cellIdx]->dlSlot[dlSchedInfo->schSlotValue.ulDciTime.slot];
+         currDlSlot->dlInfo.ulGrant = dlSchedInfo->ulGrant;
+      }
+   }
    return ROK;
 }
 
+/**
+ * @brief process DL Paging allocation from scheduler
+ *
+ * @details
+ *
+ *     Function : MacProcDlPageAlloc 
+ *      
+ *      This function copied dl Pag info in the mac slot info
+ *           
+ *  @param[in]  Pst            *pst
+ *  @param[in]  DL Paging allocation from scheduler
+ *  @return
+ *      -# ROK 
+ *      -# RFAILED 
+ **/
+uint8_t MacProcDlPageAlloc(Pst *pst, DlPageAlloc *dlPageAlloc)
+{
+   uint16_t  cellIdx = 0;
+   MacDlSlot *currDlSlot = NULLP;
+
+#ifdef CALL_FLOW_DEBUG_LOG
+   DU_LOG("\nCall Flow: ENTSCH -> ENTMAC : EVENT_DL_PAGING_ALLOC\n");
+#endif
+   if(dlPageAlloc != NULLP)
+   {
+      GET_CELL_IDX(dlPageAlloc->cellId, cellIdx);
+
+      currDlSlot = &macCb.macCell[cellIdx]->dlSlot[dlPageAlloc->dlPageTime.slot];
+      MAC_ALLOC(currDlSlot->pageAllocInfo, sizeof(DlPageAlloc));
+      if(currDlSlot->pageAllocInfo == NULLP)
+      {
+         DU_LOG("\nERROR  --> MAC : MacProcDlPageAlloc : Memory Allocation is failed!");
+         return RFAILED;
+      }
+      memcpy(currDlSlot->pageAllocInfo, dlPageAlloc, sizeof(DlPageAlloc));
+   }
+   else
+   {
+      DU_LOG("\nERROR  --> MAC : DL Paging Allocation is failed!");
+      return RFAILED;
+   }
+   return ROK;
+}
+
+/**
+ * @brief Forming and filling the MUX Pdu
+ * @details
+ *
+ *     Function : fillMsg4Pdu
+ * 
+ *      Forming and filling of Msg4Pdu
+ *           
+ *  @param[in]  DlMsgAlloc  *msg4Alloc
+ *  @return  void
+ **/
+void fillMsg4Pdu(uint16_t cellId, DlMsgSchInfo *msg4SchInfo)
+{
+   uint8_t   ueId = 0, ueIdx = 0;
+   uint16_t  cellIdx;
+   uint16_t  msg4TxPduLen;
+   MacDlData msg4DlData;
+   MacCeInfo  macCeData;
+   DlHarqProcCb *hqProcCb;
+
+   GET_CELL_IDX(cellId, cellIdx);
+
+   memset(&msg4DlData, 0, sizeof(MacDlData));
+   memset(&macCeData, 0, sizeof(MacCeInfo));
+
+   GET_UE_ID(msg4SchInfo->crnti, ueId);
+   ueIdx = ueId -1;
+
+   if(macCb.macCell[cellIdx] == NULLP)
+   {
+      DU_LOG("\nERROR -->  MAC: Cell Id[%d] not found", cellId);
+      return;
+   }
+
+   hqProcCb = &macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4HqInfo;
+   msg4TxPduLen = hqProcCb->tbInfo[0].tbSize - TX_PAYLOAD_HDR_LEN;
+
+   if(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4Pdu != NULLP)
+   {
+      MAC_ALLOC(msg4DlData.pduInfo[msg4DlData.numPdu].dlPdu, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4PduLen);
+      if(msg4DlData.pduInfo[msg4DlData.numPdu].dlPdu != NULLP)
+      {
+         fillMsg4DlData(&msg4DlData, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4PduLen, \
+            macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4Pdu);
+         fillMacCe(&macCeData, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg3Pdu);
+
+         /* Forming Mux Pdu */
+         hqProcCb->tbInfo[0].tb = NULLP;
+         MAC_ALLOC(hqProcCb->tbInfo[0].tb, msg4TxPduLen);
+         if(hqProcCb->tbInfo[0].tb != NULLP)
+         {
+            memset(hqProcCb->tbInfo[0].tb, 0, msg4TxPduLen);
+            macMuxPdu(&msg4DlData, &macCeData, hqProcCb->tbInfo[0].tb, msg4TxPduLen);
+         }
+         else
+         {
+            DU_LOG("\nERROR  -->  MAC: Failed allocating memory for msg4TxPdu");
+         }
+         /* Free memory allocated */
+         MAC_FREE(msg4DlData.pduInfo[msg4DlData.numPdu-1].dlPdu, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4PduLen);
+         MAC_FREE(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4Pdu, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4PduLen);
+         macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4Pdu = NULLP;
+         macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4PduLen = 0;
+         msg4DlData.numPdu--;
+
+      }
+   }
+
+   /* storing msg4 Pdu in macDlSlot */
+   if(hqProcCb->tbInfo[0].tb)
+   {
+      msg4SchInfo->dlMsgPduLen = msg4TxPduLen;
+      MAC_ALLOC(msg4SchInfo->dlMsgPdu, msg4SchInfo->dlMsgPduLen);
+      if(msg4SchInfo->dlMsgPdu != NULLP)
+      {
+         memcpy(msg4SchInfo->dlMsgPdu, hqProcCb->tbInfo[0].tb, \
+               msg4SchInfo->dlMsgPduLen);
+      }
+   }
+   else
+   {
+      DU_LOG("\nERROR  -->  MAC: Failed at fillMsg4Pdu()");
+   }
+}
+
+/**
+ * @brief Builds and Send the Muxed Pdu to Lower MAC
+ *
+ * @details
+ *
+ *     Function : buildAndSendMuxPdu
+ * 
+ *      Build and Sends the Muxed Pdu to Lower MAC.
+ *           
+ *  @param[in]  SlotTimingInfo    *slotInd
+ *  @return  void
+ **/
+
+void buildAndSendMuxPdu(SlotTimingInfo currTimingInfo)
+{
+   uint8_t   ueIdx;
+   uint16_t  cellIdx;
+   MacDlSlot *currDlSlot = NULLP;
+   SlotTimingInfo muxTimingInfo;
+   memset(&muxTimingInfo, 0, sizeof(SlotTimingInfo));
+
+   GET_CELL_IDX(currTimingInfo.cellId, cellIdx);
+
+   ADD_DELTA_TO_TIME(currTimingInfo, muxTimingInfo, gConfigInfo.gPhyDeltaDl, macCb.macCell[cellIdx]->numOfSlots);
+   currDlSlot = &macCb.macCell[cellIdx]->dlSlot[muxTimingInfo.slot];
+
+   for(ueIdx=0; ueIdx<MAX_NUM_UE; ueIdx++)
+   {
+      if(currDlSlot->dlInfo.dlMsgAlloc[ueIdx])
+      {
+         if((macCb.macCell[cellIdx]->macRaCb[ueIdx].macMsg4Status)&& (currDlSlot->dlInfo.dlMsgAlloc[ueIdx]->dlMsgPdschCfg))
+         {
+            fillMsg4Pdu(currTimingInfo.cellId, currDlSlot->dlInfo.dlMsgAlloc[ueIdx]);
+         }
+      }
+   }
+}
+
+/**
+ * @brief Transmission time interval indication from PHY.
+ *
+ * @details
+ *
+ *     Function : sendSlotIndMacToSch
+ * 
+ *      This API is invoked by MAC to send slot ind to scheduler.
+ *           
+ *  @param[in]  SlotTimingInfo    *slotInd
+ *  @return  
+ *      -# ROK 
+ *      -# RFAILED 
+ **/
+int sendSlotIndMacToSch(SlotTimingInfo *slotInd)
+{
+   /* fill Pst structure to send to lwr_mac to MAC */
+   Pst pst;
+
+   FILL_PST_MAC_TO_SCH(pst, EVENT_SLOT_IND_TO_SCH);
+   return(SchMessageRouter(&pst, (void *)slotInd));
+}
+
+/*******************************************************************
+ *
+ * @brief Send cell up indication to DU APP
+ *
+ * @details
+ *
+ *    Function : sendCellUpIndMacToDuApp
+ *
+ *    Functionality:
+ *       Send cell up indication to DU APP
+ *
+ * @params[in] Cell Up indication info 
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+int sendCellUpIndMacToDuApp(uint16_t cellId)
+{
+   Pst pst;
+   uint16_t ret;
+   OduCellId *oduCellId;
+
+   /*  Allocate sharable memory */
+   MAC_ALLOC_SHRABL_BUF(oduCellId, sizeof(OduCellId));
+   if(!oduCellId)
+   {
+      DU_LOG("\nERROR  -->  MAC : Memory allocation failed for cell up indication");
+      return RFAILED;
+   }
+   oduCellId->cellId = cellId;
+
+   /* Fill Pst */
+   FILL_PST_MAC_TO_DUAPP(pst, EVENT_MAC_CELL_UP_IND);
+
+   ret = MacDuAppCellUpInd(&pst, oduCellId);
+   if(ret != ROK)
+   {
+      DU_LOG("\nERROR  -->  MAC: Failed to send cell up indication to DU APP");
+      MAC_FREE_SHRABL_BUF(MAC_MEM_REGION, MAC_POOL, oduCellId, sizeof(OduCellId));
+   }
+
+   return ret;
+} /* sendCellUpIndMacToDuApp */
+
+/*******************************************************************
+ *
+ * @brief Send slot indication to DU APP
+ *
+ * @details
+ *
+ *    Function : sendSlotIndToDuApp
+ *
+ *    Functionality:
+ *       Send cell up indication to DU APP
+ *
+ * @params[in] Cell Up indication info 
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t sendSlotIndToDuApp(SlotTimingInfo *slotInd)
+{
+   Pst pst;
+   uint16_t ret;
+   SlotTimingInfo *slotIndInfo;
+
+   /*  Allocate sharable memory */
+   MAC_ALLOC_SHRABL_BUF(slotIndInfo, sizeof(SlotTimingInfo));
+   if(!slotIndInfo)
+   {
+      DU_LOG("\nERROR  -->  MAC : Memory allocation failed for slot indication");
+      return RFAILED;
+   }
+   memcpy(slotIndInfo, slotInd,sizeof(SlotTimingInfo));
+
+   /* Fill Pst */
+   FILL_PST_MAC_TO_DUAPP(pst, EVENT_MAC_SLOT_IND);
+
+   ret = MacDuAppSlotInd(&pst, slotIndInfo);
+   if(ret != ROK)
+   {
+      DU_LOG("\nERROR  -->  MAC: Failed to send slot up indication to DU APP");
+      MAC_FREE_SHRABL_BUF(MAC_MEM_REGION, MAC_POOL, slotIndInfo, sizeof(SlotTimingInfo));
+   }
+
+   return ret;
+}
+/*******************************************************************
+ *
+ * @brief Process slot indication at MAC
+ *
+ * @details
+ *
+ *    Function : macProcSlotInd
+ *
+ *    Functionality: Process slot indication at MAC
+ *
+ * @params[in] Slot indication info
+ * @return ROK     - success
+ *         RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t macProcSlotInd(SlotTimingInfo slotInd)
+{
+   uint16_t  cellIdx = 0;
+
+   GET_CELL_IDX(slotInd.cellId, cellIdx);
+   
+   if(macCb.macCell[cellIdx] == NULLP)
+   {
+      DU_LOG("ERROR  --> MAC : macProcSlotInd(): CellId[%d] does not exist. Error occurred at SFN [%d] Slot [%d]",\
+      slotInd.cellId, slotInd.sfn, slotInd.slot);
+      return RFAILED;
+   }
+   /* Store current time info */
+   macCb.macCell[cellIdx]->currTime.cellId = slotInd.cellId;
+   macCb.macCell[cellIdx]->currTime.slot = slotInd.slot;
+   macCb.macCell[cellIdx]->currTime.sfn = slotInd.sfn;
+
+   /* Mux Pdu for Msg4 */
+   buildAndSendMuxPdu(slotInd);
+
+   /* Trigger for DL TTI REQ */
+   fillDlTtiReq(slotInd);
+
+   return ROK;
+}  /* macProcSlotInd */
+
+/**
+ * @brief Transmission time interval indication from PHY.
+ *
+ * @details
+ *
+ *     Function : fapiMacSlotInd 
+ *      
+ *      This API is invoked by PHY to indicate TTI indication to MAC for a cell.
+ *           
+ *  @param[in]  Pst            *pst
+ *  @param[in]  SuId           suId 
+ *  @param[in]  SlotTimingInfo    *slotInd
+ *  @return  
+ *      -# ROK 
+ *      -# RFAILED 
+ **/
+uint8_t fapiMacSlotInd(Pst *pst, SlotTimingInfo *slotInd)
+{
+   uint8_t               ret = ROK;
+   uint16_t              cellIdx;
+   volatile uint32_t     startTime=0;
+
+#ifdef ODU_SLOT_IND_DEBUG_LOG
+   DU_LOG("\nDEBUG  -->  MAC : Slot Indication received. [%d : %d]", slotInd->sfn, slotInd->slot);
+#endif
+   /*starting Task*/
+   ODU_START_TASK(&startTime, PID_MAC_TTI_IND);
+   gConfigInfo.gSlotCount++;
+
+   if(gConfigInfo.gSlotCount == 1)
+   {
+	   GET_CELL_IDX(slotInd->cellId, cellIdx);
+	   macCb.macCell[cellIdx]->state = CELL_STATE_UP;
+   }
+
+/* When testing L2 with Intel-L1, any changes specific to 
+ * timer mode testing must be guarded under INTEL_TIMER_MODE*/
+#ifndef INTEL_TIMER_MODE
+   /* send slot indication to scheduler */
+   ret = sendSlotIndMacToSch(slotInd);
+   if(ret != ROK)
+   {
+      DU_LOG("\nERROR  -->  MAC : Sending of slot ind msg from MAC to SCH failed");
+      MAC_FREE_SHRABL_BUF(pst->region, pst->pool, slotInd, sizeof(SlotTimingInfo));
+      return ret;
+   }
+
+   ret = macProcSlotInd(*slotInd);
+   if(ret != ROK)
+   {
+      DU_LOG("\nERROR  -->  MAC : macProcSlotInd failed");
+      MAC_FREE_SHRABL_BUF(pst->region, pst->pool, slotInd, sizeof(SlotTimingInfo));
+      return ret;
+   }
+#endif
+
+   /*First Slot Ind is for CellUp. Any other Slot, will be notified to DUAPP as
+    * SLOT_IND*/
+   if(gConfigInfo.gSlotCount == 1)   
+   {
+      /* send cell up indication to du app */
+      ret = sendCellUpIndMacToDuApp(slotInd->cellId);
+
+   }
+   else
+   {
+      /* send slot indication to du app */
+      ret = sendSlotIndToDuApp(slotInd);
+   }
+   
+   if(ret != ROK)
+   {
+      DU_LOG("\nERROR  -->  MAC :Sending of slot ind msg from MAC to DU APP failed");
+      MAC_FREE_SHRABL_BUF(pst->region, pst->pool, slotInd, sizeof(SlotTimingInfo));
+      return ret;
+   }
+
+   /*stoping Task*/
+   ODU_STOP_TASK(startTime, PID_MAC_TTI_IND);
+   MAC_FREE_SHRABL_BUF(pst->region, pst->pool, slotInd, sizeof(SlotTimingInfo));
+
+#ifdef INTEL_WLS_MEM
+   lwrMacCb.phySlotIndCntr++;
+   if(lwrMacCb.phySlotIndCntr > WLS_MEM_FREE_PRD)
+   {
+      lwrMacCb.phySlotIndCntr = 1;
+   }
+   freeWlsBlockList(lwrMacCb.phySlotIndCntr - 1);
+#endif
+
+   return ret;
+}  /* fapiMacSlotInd */
+
 /**********************************************************************
   End of file
  **********************************************************************/