/* Function pointer for sending rach ind from MAC to SCH */
MacSchRachIndFunc macSchRachIndOpts[]=
{
- packMacSchRachInd,
- macSchRachInd,
- packMacSchRachInd
+ packMacSchRachInd, /* packing for loosely coupled */
+ MacSchRachInd, /* packing for tightly coupled */
+ packMacSchRachInd /* packing for light weight loosely coupled */
+};
+
+/* Function pointer for sending RACH resource request from MAC to SCH */
+MacSchRachRsrcReqFunc macSchRachRsrcReqOpts[] =
+{
+ packMacSchRachRsrcReq, /* packing for loosely coupled */
+ MacSchRachRsrcReq, /* packing for tightly coupled */
+ packMacSchRachRsrcReq /* packing for light weight loosely coupled */
+};
+
+/* Function pointer for sending RACH resource response from MAC to DU APP */
+MacDuRachRsrcRspFunc macDuRachRsrcRspOpts[] =
+{
+ packDuMacRachRsrcRsp, /* packing for loosely coupled */
+ DuProcMacRachRsrcRsp, /* packing for tightly coupled */
+ packDuMacRachRsrcRsp /* packing for light weight loosly coupled */
+};
+
+/* Function pointer for sending RACH resource release from MAC to SCH */
+MacSchRachRsrcRelFunc macSchRachRsrcRelOpts[] =
+{
+ packMacSchRachRsrcRel, /* packing for loosely coupled */
+ MacSchRachRsrcRel, /* packing for tightly coupled */
+ packMacSchRachRsrcRel /* packing for light weight loosely coupled */
};
/*******************************************************************
return(*macSchRachIndOpts[pst.selector])(&pst, rachInd);
}
+/*******************************************************************
+ *
+ * @brief Adds an entry in list of RA Cb and fills RACH ind info
+ *
+ * @details
+ *
+ * Function : createMacRaCb
+ *
+ * Functionality:
+ * Adds an entry in list of RA Cb and fills RACH ind info
+ *
+ * @params[in] Pointer to cellCB,
+ * Pointer to RACH Indication information
+ * @return ROK - SUCCESS
+ * RFAILED - FAILURE
+ *
+ * ****************************************************************/
+uint8_t createMacRaCb(MacCellCb *cellCb, RachIndInfo *rachIndInfo)
+{
+ int8_t ueIdx = -1;
+ uint8_t ssbIdx = 0;
+ uint16_t crnti = 0;
+ MacUeCb *ueCb = NULLP;
+
+ /* Search if a UE CB is already present to which the incoming preamble index was dedicated */
+ for(ueIdx = 0; ueIdx < MAX_NUM_UE; ueIdx++)
+ {
+ /* Check if ueCb has a crnti alloted to it. If not, it means this ueIdx
+ * has no UE context stored in it, hence searching for preamble index in
+ * this ueCb is not required */
+ if(cellCb->ueCb[ueIdx].crnti)
+ {
+ for(ssbIdx = 0; ssbIdx < cellCb->ueCb[ueIdx].cfraResource.numSsb; ssbIdx++)
+ {
+ if(cellCb->ueCb[ueIdx].cfraResource.ssbResource[ssbIdx].raPreambleIdx == rachIndInfo->preambleIdx)
+ {
+ ueCb = &cellCb->ueCb[ueIdx];
+ break;
+ }
+ }
+ if(ueCb)
+ break;
+ }
+ }
+
+ if(ueCb)
+ {
+ /* If UE context is already present as in case of handover, fetch CRNTI from
+ * UE CB allocated during UE context creation */
+ crnti = ueCb->crnti;
+ }
+ else
+ {
+ /* If UE context not present, assign CRNTI to this UE */
+ ueIdx = getFreeBitFromUeBitMap(rachIndInfo->cellId);
+ if(ueIdx == -1)
+ {
+ DU_LOG("\nERROR --> MAC : Failed to find free UE Idx in UE bit map of cell Id [%d]", rachIndInfo->cellId);
+ return RFAILED;
+ }
+
+ /* Calculate CRNTI from UE Index */
+ GET_CRNTI(crnti, ueIdx+1);
+
+ /* Store in raCb */
+ memset(&cellCb->macRaCb[ueIdx], 0, sizeof(MacRaCbInfo));
+ cellCb->macRaCb[ueIdx].cellId = rachIndInfo->cellId;
+ cellCb->macRaCb[ueIdx].crnti = crnti;
+
+ /* Initialize MSG4 HARQ PROC CB */
+ cellCb->macRaCb[ueIdx].msg4HqInfo.procId = MAX_NUM_HARQ_PROC;
+
+ }
+
+ /* Store in Rach Indication message to be sent to SCH */
+ rachIndInfo->crnti = crnti;
+ return ROK;
+}
+
/*******************************************************************
*
* @brief Processes RACH indication from PHY
* ****************************************************************/
uint8_t fapiMacRachInd(Pst *pst, RachInd *rachInd)
{
- uint8_t pduIdx;
- uint8_t preambleIdx;
- RachIndInfo rachIndInfo;
+ uint8_t ret = ROK;
+ uint8_t pduIdx = 0;
+ uint8_t preambleIdx = 0;
+ uint16_t cellIdx = 0;
+ RachIndInfo *rachIndInfo = NULLP;
+ MacCellCb *cellCb = NULLP;
- DU_LOG("\nMAC : Received RACH indication");
+ DU_LOG("\nINFO --> MAC : Received RACH indication");
/* Considering one pdu and one preamble */
pduIdx = 0;
preambleIdx = 0;
- rachIndInfo.cellId = rachInd->rachPdu[pduIdx].pci;
- /* TODO : A.ocate unique crnti for each ue */
- rachIndInfo.crnti = 100;
- rachIndInfo.timingInfo.sfn = rachInd->timingInfo.sfn;
- rachIndInfo.timingInfo.slot = rachInd->timingInfo.slot;
- rachIndInfo.slotIdx = rachInd->rachPdu[pduIdx].slotIdx;
- rachIndInfo.symbolIdx = rachInd->rachPdu[pduIdx].symbolIdx;
- rachIndInfo.freqIdx = rachInd->rachPdu[pduIdx].freqIdx;
- rachIndInfo.preambleIdx = \
- rachInd->rachPdu[pduIdx].preamInfo[preambleIdx].preamIdx;
- rachIndInfo.timingAdv = \
- rachInd->rachPdu[pduIdx].preamInfo[preambleIdx].timingAdv;
-
- /* storing the value in macRaCb */
- createMacRaCb(rachIndInfo.cellId, rachIndInfo.crnti);
-
- return(sendRachIndMacToSch(&rachIndInfo));
+ /* Validate cell Id */
+ GET_CELL_IDX(rachInd->cellId, cellIdx);
+ if(macCb.macCell[cellIdx] && (macCb.macCell[cellIdx]->cellId == rachInd->cellId))
+ cellCb = macCb.macCell[cellIdx];
+
+ if(!cellCb)
+ {
+ DU_LOG("\nERROR --> MAC : Invalid Cell ID [%d] received in RACH Indication", rachInd->cellId);
+ return RFAILED;
+ }
+
+ MAC_ALLOC(rachIndInfo, sizeof(RachIndInfo));
+ if(!rachIndInfo)
+ {
+ DU_LOG("\nERROR --> MAC : Memory allocation failure in fapiMacRachInd");
+ MAC_FREE_SHRABL_BUF(pst->region, pst->pool, rachInd, sizeof(RachInd));
+ return RFAILED;
+ }
+
+ rachIndInfo->cellId = rachInd->cellId;
+ rachIndInfo->timingInfo.sfn = rachInd->timingInfo.sfn;
+ rachIndInfo->timingInfo.slot = rachInd->timingInfo.slot;
+ rachIndInfo->slotIdx = rachInd->rachPdu[pduIdx].slotIdx;
+ rachIndInfo->symbolIdx = rachInd->rachPdu[pduIdx].symbolIdx;
+ rachIndInfo->freqIdx = rachInd->rachPdu[pduIdx].freqIdx;
+ rachIndInfo->preambleIdx = rachInd->rachPdu[pduIdx].preamInfo[preambleIdx].preamIdx;
+ rachIndInfo->timingAdv = rachInd->rachPdu[pduIdx].preamInfo[preambleIdx].timingAdv;
+
+ /* Store the value in macRaCb */
+ if((ret = createMacRaCb(cellCb, rachIndInfo)) == ROK)
+ {
+ /* Send RACH Indication to SCH */
+ ret = sendRachIndMacToSch(rachIndInfo);
+ }
+
+ /* Free sharable buffer used to send RACH Indication from lower MAC to MAC */
+ MAC_FREE_SHRABL_BUF(pst->region, pst->pool, rachInd, sizeof(RachInd));
+
+ return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Processes RACH Resource request from DU APP
+ *
+ * @details
+ *
+ * Function : MacProcRachRsrcReq
+ *
+ * Functionality: Processes RACH resource request from DU APP.
+ * Fills and sends RACH resource request towards SCH.
+ *
+ * @params[in] Post structure
+ * RACH resource request
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t MacProcRachRsrcReq(Pst *pst, MacRachRsrcReq *rachRsrcReq)
+{
+ uint8_t ret = RFAILED;
+ uint16_t cellIdx = 0;
+ Pst schPst;
+ MacCellCb *cellCb = NULLP;
+ MacUeCb *ueCb = NULLP;
+ SchRachRsrcReq *schRachRsrcReq = NULLP;
+
+ DU_LOG("\nINFO --> MAC : Recieved RACH Resource Request for Cell ID [%d] UE ID [%d]",\
+ rachRsrcReq->cellId, rachRsrcReq->ueId);
+
+ /* Fetch Cell Cb */
+ GET_CELL_IDX(rachRsrcReq->cellId, cellIdx);
+ if(macCb.macCell[cellIdx] && (macCb.macCell[cellIdx]->cellId == rachRsrcReq->cellId))
+ {
+ cellCb = macCb.macCell[cellIdx];
+
+ /* Fetch UE Cb */
+ if(cellCb->ueCb[rachRsrcReq->ueId-1].ueId == rachRsrcReq->ueId)
+ {
+ ueCb = &cellCb->ueCb[rachRsrcReq->ueId-1];
+ /* Allocate memory to RACH resource request to be sent to SCH */
+ MAC_ALLOC(schRachRsrcReq, sizeof(SchRachRsrcReq));
+ if(schRachRsrcReq)
+ {
+ /* Fill SCH RACH resource request from information received from DU APP to MAC */
+ schRachRsrcReq->cellId = rachRsrcReq->cellId;
+ schRachRsrcReq->crnti = ueCb->crnti;
+ schRachRsrcReq->numSsb = rachRsrcReq->numSsb;
+ memcpy(schRachRsrcReq->ssbIdx, rachRsrcReq->ssbIdx, sizeof(schRachRsrcReq->ssbIdx));
+
+ /* Send RACH resource request from MAC to SCH */
+ FILL_PST_MAC_TO_SCH(schPst, EVENT_RACH_RESOURCE_REQUEST_TO_SCH);
+ ret = (*macSchRachRsrcReqOpts[schPst.selector])(&schPst, schRachRsrcReq);
+ }
+ else
+ DU_LOG("\nERROR --> MAC : Memory allocation failed for RACH resource request to SCH");
+ }
+ else
+ DU_LOG("\nERROR --> MAC : UE ID [%d] not found", rachRsrcReq->ueId);
+ }
+ else
+ DU_LOG("\nERROR --> MAC : Cell ID [%d] not found", rachRsrcReq->cellId);
+
+ /* Free sharable buffer used to send RACH reource request from DU APP to MAC */
+ MAC_FREE_SHRABL_BUF(pst->region, pst->pool, rachRsrcReq, sizeof(MacRachRsrcReq));
+ return ret;
+}
+
+/*******************************************************************
+ *
+ * @brief Processes RACH Resource response from SCH
+ *
+ * @details
+ *
+ * Function : MacProcSchRachRsrcRsp
+ *
+ * Functionality: Processes RACH resource response from SCH
+ * Fills and sends RACH resource response towards DU APP
+ *
+ * @params[in] Post structure
+ * RACH resource response
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t MacProcSchRachRsrcRsp(Pst *pst, SchRachRsrcRsp *schRachRsrcRsp)
+{
+ uint16_t cellIdx = 0;
+ Pst rspPst;
+ MacRachRsrcRsp *rachRsrcRsp = NULLP;
+ MacCellCb *cellCb = NULLP;
+ MacUeCb *ueCb = NULLP;
+
+ DU_LOG("\nINFO --> MAC : Received RACH resource response from SCH : Cell ID [%d] CRNTI [%d]", \
+ schRachRsrcRsp->cellId, schRachRsrcRsp->crnti);
+
+ /* Fill RACH resource response to send to DU APP */
+ MAC_ALLOC_SHRABL_BUF(rachRsrcRsp, sizeof(MacRachRsrcRsp));
+ if(!rachRsrcRsp)
+ {
+ DU_LOG("\nERROR --> MAC : Memory allocation failed for RACH resource response");
+ MAC_FREE(schRachRsrcRsp, sizeof(SchRachRsrcRsp));
+ return RFAILED;
+ }
+ rachRsrcRsp->cellId = schRachRsrcRsp->cellId;
+ GET_UE_ID(schRachRsrcRsp->crnti, rachRsrcRsp->ueId);
+ rachRsrcRsp->result = MAC_DU_APP_RSP_OK;
+
+ /* Fill Pst structure to send RACH resource response from MAC to DU APP */
+ FILL_PST_MAC_TO_DUAPP(rspPst, EVENT_MAC_RACH_RESOURCE_RSP);
+
+ /* If negative response is received from SCH, send it further to DU APP */
+ if(schRachRsrcRsp->result == RSP_NOK)
+ {
+ DU_LOG("\nINFO --> MAC : RACH Resource response from SCH : Result [FAILURE]");
+ rachRsrcRsp->result = MAC_DU_APP_RSP_NOK;
+ }
+ else
+ {
+ DU_LOG("\nINFO --> MAC : RACH Resource response from SCH : Result [SUCCESS]");
+
+ /* Fetch Cell Cb */
+ GET_CELL_IDX(schRachRsrcRsp->cellId, cellIdx);
+ if(macCb.macCell[cellIdx] && (macCb.macCell[cellIdx]->cellId == schRachRsrcRsp->cellId))
+ {
+ cellCb = macCb.macCell[cellIdx];
+
+ /* Fetch UE Cb */
+ if(cellCb->ueCb[rachRsrcRsp->ueId-1].crnti == schRachRsrcRsp->crnti)
+ ueCb = &cellCb->ueCb[rachRsrcRsp->ueId-1];
+ else
+ {
+ DU_LOG("\nERROR --> MAC : CRNTI [%d] not found", schRachRsrcRsp->crnti);
+ rachRsrcRsp->result = MAC_DU_APP_RSP_NOK;
+ }
+ }
+ else
+ {
+ DU_LOG("\nERROR --> MAC : Cell ID [%d] not found", schRachRsrcRsp->cellId);
+ rachRsrcRsp->result = MAC_DU_APP_RSP_NOK;
+ }
+ }
+
+ /* Fill SSB RACH resource info if SCH has sent a positive response and
+ * processing of SCH RACH resource response at MAC has been successful so far */
+ if(rachRsrcRsp->result == MAC_DU_APP_RSP_OK)
+ {
+ rachRsrcRsp->newCrnti = ueCb->crnti;
+ rachRsrcRsp->cfraResource.numSsb = schRachRsrcRsp->cfraResource.numSsb;
+ memcpy(rachRsrcRsp->cfraResource.ssbResource, schRachRsrcRsp->cfraResource.ssbResource, \
+ rachRsrcRsp->cfraResource.numSsb * sizeof(MacCfraSsbResource));
+
+ /* Copy resources to UE CB in MAC */
+ memcpy(&ueCb->cfraResource, &rachRsrcRsp->cfraResource, sizeof(MacCfraResource));
+ }
+
+ /* Free SCH RACH resource response */
+ MAC_FREE(schRachRsrcRsp, sizeof(SchRachRsrcRsp));
+
+ /* Send RACH resource response to DU APP */
+ FILL_PST_MAC_TO_DUAPP(rspPst, EVENT_MAC_RACH_RESOURCE_RSP);
+ return (*macDuRachRsrcRspOpts[rspPst.selector])(&rspPst, rachRsrcRsp);
+}
+
+
+/*******************************************************************
+ *
+ * @brief Processes RACH Resource release from DU APP
+ *
+ * @details
+ *
+ * Function : MacProcRachRsrcRel
+ *
+ * Functionality: Processes RACH resource release from DU APP.
+ * Fills and sends RACH resource release towards SCH.
+ *
+ * @params[in] Post structure
+ * RACH resource release
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t MacProcRachRsrcRel(Pst *pst, MacRachRsrcRel *rachRsrcRel)
+{
+ uint8_t ret = RFAILED;
+ uint16_t cellIdx = 0;
+ Pst schPst;
+ MacCellCb *cellCb = NULLP;
+ MacUeCb *ueCb = NULLP;
+ SchRachRsrcRel *schRachRsrcRel = NULLP;
+
+ DU_LOG("\nINFO --> MAC : Recieved RACH Resource Release for Cell ID [%d] UE ID [%d]",\
+ rachRsrcRel->cellId, rachRsrcRel->ueId);
+
+ /* Fetch Cell Cb */
+ GET_CELL_IDX(rachRsrcRel->cellId, cellIdx);
+ if(macCb.macCell[cellIdx] && (macCb.macCell[cellIdx]->cellId == rachRsrcRel->cellId))
+ {
+ cellCb = macCb.macCell[cellIdx];
+
+ /* Fetch UE Cb */
+ if(cellCb->ueCb[rachRsrcRel->ueId-1].ueId == rachRsrcRel->ueId)
+ {
+ ueCb = &cellCb->ueCb[rachRsrcRel->ueId-1];
+ /* Allocate memory to RACH resource release to be sent to SCH */
+ MAC_ALLOC(schRachRsrcRel, sizeof(SchRachRsrcRel));
+ if(schRachRsrcRel)
+ {
+ /* Fill SCH RACH resource release from information received from DU APP to MAC */
+ memset(schRachRsrcRel, 0, sizeof(SchRachRsrcRel));
+ schRachRsrcRel->cellId = rachRsrcRel->cellId;
+ schRachRsrcRel->crnti = ueCb->crnti;
+ memcpy(&schRachRsrcRel->cfraResource, &ueCb->cfraResource, sizeof(schRachRsrcRel->cfraResource));
+
+ /* Release RACH resources at MAC */
+ memset(&ueCb->cfraResource, 0, sizeof(MacCfraResource));
+
+ /* Send RACH resource release from MAC to SCH */
+ FILL_PST_MAC_TO_SCH(schPst, EVENT_RACH_RESOURCE_RELEASE_TO_SCH);
+ ret = (*macSchRachRsrcRelOpts[schPst.selector])(&schPst, schRachRsrcRel);
+ }
+ else
+ DU_LOG("\nERROR --> MAC : Memory allocation failed for RACH resource release to SCH");
+ }
+ else
+ DU_LOG("\nERROR --> MAC : UE ID [%d] not found", rachRsrcRel->ueId);
+ }
+ else
+ DU_LOG("\nERROR --> MAC : Cell ID [%d] not found", rachRsrcRel->cellId);
+
+ /* Free sharable buffer used to send RACH reource release from DU APP to MAC */
+ MAC_FREE_SHRABL_BUF(pst->region, pst->pool, rachRsrcRel, sizeof(MacRachRsrcRel));
+ return ret;
}
/* spec-38.211 Table 6.3.3.1-7 */
{
uint16_t cellIdx;
+#ifdef CALL_FLOW_DEBUG_LOG
+ DU_LOG("\nCall Flow: ENTSCH -> ENTMAC : EVENT_UL_SCH_INFO\n");
+#endif
+
GET_CELL_IDX(ulSchedInfo->cellId, cellIdx);
if(ulSchedInfo != NULLP)
{
MacUlSlot *currUlSlot =
- &macCb.macCell[cellIdx]->ulSlot[ulSchedInfo->slotIndInfo.slot % MAX_SLOT_SUPPORTED];
+ &macCb.macCell[cellIdx]->ulSlot[ulSchedInfo->slotIndInfo.slot % MAX_SLOTS];
memcpy(&currUlSlot->ulInfo, ulSchedInfo, sizeof(UlSchedInfo));
}
return ROK;
Code Review / o-du / l2.git / blobdiff