X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=src%2F5gnrsch%2Fsch_slot_ind.c;h=12a387cb0dd35101b766953360e65889166d2ff7;hb=2bd852089c3226f721d83b30f816b90f803237f6;hp=604ad1febbb91da9599a72f83a239babdf8f4488;hpb=a2484c58e5beeb1ab9e1c86104cf9d9bc56750d1;p=o-du%2Fl2.git diff --git a/src/5gnrsch/sch_slot_ind.c b/src/5gnrsch/sch_slot_ind.c index 604ad1feb..12a387cb0 100644 --- a/src/5gnrsch/sch_slot_ind.c +++ b/src/5gnrsch/sch_slot_ind.c @@ -31,29 +31,9 @@ File: sch_slot_ind.c /** @file sch_slot_ind.c @brief This module processes slot indications */ -#include "stdbool.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 service interface */ -#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 "common_def.h" #include "tfu.h" #include "lrg.h" - -#include "gen.x" /* general layer typedefs */ -#include "ssi.x" /* system services typedefs */ -#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" #include "lrg.x" #include "du_log.h" @@ -64,14 +44,17 @@ File: sch_slot_ind.c SchMacDlAllocFunc schMacDlAllocOpts[] = { - packSchMacDlAlloc, - MacProcDlAlloc, - packSchMacDlAlloc + packSchMacDlAlloc, + MacProcDlAlloc, + packSchMacDlAlloc }; -extern SchCb schCb[SCH_MAX_INST]; -extern int schFillRar(RarAlloc *rarAlloc, uint16_t raRnti, uint16_t pci, uint8_t -offsetPointA); +SchMacDlPageAllocFunc schMacDlPageAllocOpts[] = +{ + packSchMacDlPageAlloc, + MacProcDlPageAlloc, + packSchMacDlPageAlloc +}; /******************************************************************* * @@ -89,15 +72,43 @@ offsetPointA); * RFAILED - failure * * ****************************************************************/ -int sendDlAllocToMac(DlAlloc *dlAlloc, Inst inst) +uint8_t sendDlAllocToMac(DlSchedInfo *dlSchedInfo, Inst inst) +{ + Pst pst; + + memset(&pst, 0, sizeof(Pst)); + FILL_PST_SCH_TO_MAC(pst, inst); + pst.event = EVENT_DL_SCH_INFO; + + return(*schMacDlAllocOpts[pst.selector])(&pst, dlSchedInfo); + +} + +/******************************************************************* + * + * @brief Handles sending DL Page alloc to MAC + * + * @details + * + * Function : sendDlPAgeAllocToMac + * + * Functionality: + * Sends DL Page Resource Allocation to MAC from SCH + * + * @params[in] + * @return ROK - success + * RFAILED - failure + * + * ****************************************************************/ +uint8_t sendDlPageAllocToMac(DlPageAlloc *dlPageAlloc, Inst inst) { - Pst pst; + Pst pst; memset(&pst, 0, sizeof(Pst)); - SCH_FILL_RSP_PST(pst, inst); - pst.event = EVENT_DL_ALLOC; + FILL_PST_SCH_TO_MAC(pst, inst); + pst.event = EVENT_DL_PAGING_ALLOC; - return(*schMacDlAllocOpts[pst.selector])(&pst, dlAlloc); + return(*schMacDlPageAllocOpts[pst.selector])(&pst, dlPageAlloc); } @@ -107,7 +118,7 @@ int sendDlAllocToMac(DlAlloc *dlAlloc, Inst inst) * * @details * - * Function : schProcessSlotInd + * Function : schCalcSlotValues * * Functionality: * Handles TTI indication received from PHY @@ -117,134 +128,872 @@ int sendDlAllocToMac(DlAlloc *dlAlloc, Inst inst) * RFAILED - failure * * ****************************************************************/ -uint8_t schProcessSlotInd(SlotIndInfo *slotInd, Inst schInst) +void schCalcSlotValues(SlotTimingInfo slotInd, SchSlotValue *schSlotValue) { - int ret = ROK; - uint8_t ssb_rep; - uint16_t sfn = slotInd->sfn; - uint16_t slot = slotInd->slot; - uint16_t sfnSlot = 0; - DlAlloc dlAlloc; - memset(&dlAlloc,0,sizeof(DlAlloc)); - DlBrdcstAlloc *dlBrdcstAlloc = &dlAlloc.brdcstAlloc; - RarAlloc *rarAlloc = &dlAlloc.rarAlloc; - Msg4Alloc *msg4Alloc; - dlBrdcstAlloc->ssbTrans = NO_SSB; - dlBrdcstAlloc->sib1Trans = NO_SIB1; - - - SchCellCb *cell = schCb[schInst].cells[schInst]; - -#ifdef LTE_L2_MEAS - glblTtiCnt++; -#endif - -// schDlResAlloc(cell, slotInd); - - ssb_rep = cell->cellCfg.ssbSchCfg.ssbPeriod; - memcpy(&cell->slotInfo, slotInd, sizeof(SlotIndInfo)); - dlBrdcstAlloc->ssbIdxSupported = 1; - - if((slot + SCHED_DELTA) >= SCH_NUM_SLOTS) - { - sfn = (sfn+1)%SCH_MAX_SFN; - } - slot = ((slot + SCHED_DELTA) % SCH_NUM_SLOTS); - sfnSlot = ((sfn * 10) + slot); - - dlAlloc.slotIndInfo.sfn = sfn; - dlAlloc.slotIndInfo.slot = slot; - dlAlloc.cellId = cell->cellId; - - /* Identify SSB ocassion*/ - if (sfnSlot % SCH_MIB_TRANS == 0) - { - dlBrdcstAlloc->ssbTrans = SSB_TRANSMISSION; - } - else if (sfnSlot % ssb_rep == 0) - { - dlBrdcstAlloc->ssbTrans = SSB_REPEAT; - } - else - { - /* not SSB occassion */ - } + /**************************************************************** + * PHY_DELTA - the physical layer delta * + * SCHED_DELTA - scheduler schedules one slot ahead * + * BO_DELTA - this delay is considered for BO response and * + * RLC buffer packet to received at MAC * + * lower-mac (FAPI filling) will be working on PHY_DELTA * + * brdcast scheduler will working on PHY_DELTA + SCHED_DELTA * + * RAR scheduler will working on PHY_DELTA + SCHED_DELTA * + * msg4 scheduler will working on PHY_DELTA + SCHED_DELTA * + * dedicated DL msg scheduler will working * + * on PHY_DELTA + SCHED_DELTA + BO_DELTA * + ****************************************************************/ + + ADD_DELTA_TO_TIME(slotInd, schSlotValue->currentTime, PHY_DELTA_DL); + ADD_DELTA_TO_TIME(slotInd, schSlotValue->broadcastTime, PHY_DELTA_DL + SCHED_DELTA); + ADD_DELTA_TO_TIME(slotInd, schSlotValue->rarTime, PHY_DELTA_DL + SCHED_DELTA); + ADD_DELTA_TO_TIME(slotInd, schSlotValue->dlMsgTime, PHY_DELTA_DL + SCHED_DELTA); + ADD_DELTA_TO_TIME(slotInd, schSlotValue->ulDciTime, PHY_DELTA_DL + SCHED_DELTA); +} +/******************************************************************* + * + * @brief Checks if a slot is to be scheduled for SSB transmission + * + * @details + * + * Function : schCheckSsbOcc + * + * Functionality: + * Checks if a slot is to be scheduled for SSB transmission + * + * @params[in] SlotTimingInfo slotTime + * SchCellCb *cell + * @return Pdu transmission + * + * ****************************************************************/ +PduTxOccsaion schCheckSsbOcc(SchCellCb *cell, SlotTimingInfo slotTime) +{ + uint8_t ssb_rep; + + ssb_rep = cell->cellCfg.ssbSchCfg.ssbPeriod; + + /* Identify SSB ocassion*/ + if ((slotTime.sfn % SCH_MIB_TRANS == 0) && (slotTime.slot ==0)) + { + return NEW_TRANSMISSION; + } + else if(cell->firstSsbTransmitted) + { + if((ssb_rep == 5) && ((slotTime.slot == 0 || slotTime.slot == 10))) + return REPEATITION; + else if((slotTime.sfn % (ssb_rep/10) == 0) && slotTime.slot == 0) + return REPEATITION; + } + /* not SSB occassion */ + return NO_TRANSMISSION; +} + +/******************************************************************* + * + * @brief Checks if a slot is to be scheduled for SIB1 transmission + * + * @details + * + * Function : schCheckSib1Occ + * + * Functionality: + * Checks if a slot is to be scheduled for SIB1 transmission + * + * @params[in] SlotTimingInfo slotTime + * SchCellCb *cell + * @return Pdu transmission + * + * ****************************************************************/ +PduTxOccsaion schCheckSib1Occ(SchCellCb *cell, SlotTimingInfo slotTime) +{ /* Identify SIB1 occasions */ - if(sfnSlot % cell->cellCfg.sib1SchCfg.sib1NewTxPeriod == 0) - { - dlBrdcstAlloc->sib1Trans = SIB1_TRANSMISSION; - } - else if (sfnSlot % cell->cellCfg.sib1SchCfg.sib1RepetitionPeriod == 0) - { - dlBrdcstAlloc->sib1Trans = SIB1_REPITITION; - } - else - { - /* not SIB1 occassion */ - } - - if(dlBrdcstAlloc->ssbTrans || dlBrdcstAlloc->sib1Trans) - { - dlAlloc.isBroadcastPres = true; - ret = schBroadcastAlloc(cell, dlBrdcstAlloc,slot); - if(ret != ROK) - { - DU_LOG("\nschBroadcastAlloc failed"); - RETVALUE(ret); - } - } - - /* check for RAR */ - if(cell->dlAlloc[slot]->rarPres == true) - { - dlAlloc.isRarPres = true; - /* RAR info is copied, this was earlier filled in schProcessRachInd */ - memcpy(&rarAlloc->rarInfo, &cell->dlAlloc[slot]->rarInfo, sizeof(RarInfo)); - - /* pdcch and pdsch data is filled */ - schFillRar(rarAlloc, - cell->dlAlloc[slot]->rarInfo.raRnti, - cell->cellCfg.phyCellId, - cell->cellCfg.ssbSchCfg.ssbOffsetPointA); - - cell->dlAlloc[slot]->rarPres = false; - } - - /* check for MSG4 */ - if(cell->dlAlloc[slot]->msg4Info) - { - SCH_ALLOC(msg4Alloc, sizeof(Msg4Alloc)); - if(!msg4Alloc) - { - DU_LOG("\nMAC: Memory Allocation failed for msg4 alloc"); - return RFAILED; - } - - dlAlloc.msg4Alloc = msg4Alloc; - - /* Msg4 info is copied, this was earlier filled in macSchDlRlcBoInfo */ - memcpy(&msg4Alloc->msg4Info, cell->dlAlloc[slot]->msg4Info, \ - sizeof(Msg4Info)); - - /* pdcch and pdsch data is filled */ - schDlRsrcAllocMsg4(msg4Alloc, cell, slot); - SCH_FREE(cell->dlAlloc[slot]->msg4Info, sizeof(Msg4Info)); - cell->dlAlloc[slot]->msg4Info = NULL; - } - - - /* send msg to MAC */ - ret = sendDlAllocToMac(&dlAlloc, schInst); + if((slotTime.sfn % SCH_SIB1_TRANS == 0) && (slotTime.slot ==0)) + { + return NEW_TRANSMISSION; + } + else if(cell->firstSib1Transmitted) + { + if((slotTime.sfn % (cell->cellCfg.sib1SchCfg.sib1RepetitionPeriod/10) == 0) && + (slotTime.slot == 0)) + { + return REPEATITION; + } + } + /* not SIB1 occassion */ + return NO_TRANSMISSION; +} + +/******************************************************************* + * + * @brief find correct combination of k0-k1 value + * + * @details + * + * Function : findValidK0K1Value + * + * Functionality: + * find correct combination of k0-k1 value + * + * @params[in] SchCellCb *cell, SlotTimingInfo currTime + * @params[in] uint8_t ueId, bool dedMsg + * @params[in] uint8_t *pdschStartSymbol, uint8_t *pdschSymblLen + * @params[in] SlotTimingInfo *pdcchTime, SlotTimingInfo *pdschTime + * @params[in] SlotTimingInfo *pucchTime, bool isRetx, SchDlHqProcCb *hqP + * @return ROK - success + * RFAILED - failure + * + *******************************************************************/ +bool findValidK0K1Value(SchCellCb *cell, SlotTimingInfo currTime, uint8_t ueId, bool dedMsg, + uint8_t *pdschStartSymbol, uint8_t *pdschSymblLen, SlotTimingInfo *pdcchTime, + SlotTimingInfo *pdschTime, SlotTimingInfo *pucchTime, bool isRetx, SchDlHqProcCb *hqP) +{ + uint8_t numK0 = 0, k0TblIdx = 0, k0Val = 0, k0Index =0 ; + uint8_t k1TblIdx = 0, k1Index = 0, k1Val = 0, numK1 = 0; + SchUeCb *ueCb = NULLP; + SchK0K1TimingInfoTbl *k0K1InfoTbl; + + ADD_DELTA_TO_TIME(currTime, (*pdcchTime), PHY_DELTA_DL + SCHED_DELTA); +#ifdef NR_TDD + if(schGetSlotSymbFrmt(pdcchTime->slot, cell->slotFrmtBitMap) != DL_SLOT) + { + /* If it is not a DL slot, cannot schedule PDCCH. Return from here. */ + return false; + } +#endif + + if(cell->schDlSlotInfo[pdcchTime->slot]->pdcchUe != 0) + { + return false; + } + + if(dedMsg == true) + { + ueCb = &cell->ueCb[ueId-1]; + k0K1InfoTbl = &ueCb->ueCfg.spCellCfg.servCellCfg.initDlBwp.k0K1InfoTbl; + } + else + { + k0K1InfoTbl = &cell->cellCfg.schInitialDlBwp.k0K1InfoTbl; + } + + numK0 = k0K1InfoTbl->k0k1TimingInfo[pdcchTime->slot].numK0; + for(k0TblIdx = 0; k0TblIdx < numK0; k0TblIdx++) + { + k0Index = k0K1InfoTbl->k0k1TimingInfo[pdcchTime->slot].k0Indexes[k0TblIdx].k0Index; + if(dedMsg != true) + { + k0Val = cell->cellCfg.schInitialDlBwp.pdschCommon.timeDomRsrcAllocList[k0Index].k0; + *pdschStartSymbol = cell->cellCfg.schInitialDlBwp.pdschCommon.timeDomRsrcAllocList[k0Index].startSymbol; + *pdschSymblLen = cell->cellCfg.schInitialDlBwp.pdschCommon.timeDomRsrcAllocList[k0Index].lengthSymbol; + } + else + { + if(ueCb->ueCfg.spCellCfg.servCellCfg.initDlBwp.pdschCfg.timeDomRsrcAllociList[k0Index].k0 != NULLP) + { + k0Val = *(ueCb->ueCfg.spCellCfg.servCellCfg.initDlBwp.pdschCfg.timeDomRsrcAllociList[k0Index].k0); + *pdschStartSymbol = ueCb->ueCfg.spCellCfg.servCellCfg.initDlBwp.pdschCfg.timeDomRsrcAllociList[k0Index].startSymbol; + *pdschSymblLen = ueCb->ueCfg.spCellCfg.servCellCfg.initDlBwp.pdschCfg.timeDomRsrcAllociList[k0Index].symbolLength; + } + } + + ADD_DELTA_TO_TIME((*pdcchTime), (*pdschTime), k0Val); +#ifdef NR_TDD + if(schGetSlotSymbFrmt(pdschTime->slot, cell->slotFrmtBitMap) != DL_SLOT) + { + continue; + } +#endif + if(cell->schDlSlotInfo[pdschTime->slot]->pdschUe != 0) + { + continue; + } + + numK1 = k0K1InfoTbl->k0k1TimingInfo[pdcchTime->slot].k0Indexes[k0TblIdx].k1TimingInfo.numK1; + for(k1TblIdx = 0; k1TblIdx < numK1; k1TblIdx++) + { + k1Index = k0K1InfoTbl->k0k1TimingInfo[pdcchTime->slot].k0Indexes[k0TblIdx].k1TimingInfo.k1Indexes[k1TblIdx]; + if(dedMsg != true) + { + k1Val = defaultUlAckTbl[k1Index]; + } + else + { + if(ueCb->ueCfg.spCellCfg.servCellCfg.initUlBwp.pucchCfg.dlDataToUlAck) + { + k1Val = ueCb->ueCfg.spCellCfg.servCellCfg.initUlBwp.pucchCfg.dlDataToUlAck->dlDataToUlAckList[k1Index]; + } + } + ADD_DELTA_TO_TIME((*pdschTime),(*pucchTime), k1Val); +#ifdef NR_TDD + if(schGetSlotSymbFrmt(pucchTime->slot, cell->slotFrmtBitMap) == DL_SLOT) + { + continue; + } +#endif + if(cell->schUlSlotInfo[pucchTime->slot]->pucchUe != 0) + { + continue; + } + return true; + } + } + /* + * Number of symbols in case of retransmisson should be same as it was in + * original transmisson. Symbol availablity checks need to be added. + */ + return false; +} + +/******************************************************************* + * + * @brief + * + * @details + * + * Function : schFillBoGrantDlSchedInfo + * + * Functionality: + + * + * @params[in] SchCellCb *cell, SlotTimingInfo currTime, uint8_t ueId + * @params[in] bool isRetx, SchDlHqProcCb **hqP + * @return ROK - success + * RFAILED - failure + * + * ****************************************************************/ +bool schFillBoGrantDlSchedInfo(SchCellCb *cell, SlotTimingInfo currTime, uint8_t ueId, bool isRetx, SchDlHqProcCb **hqP) +{ + uint8_t lcIdx = 0; + uint8_t pdschNumSymbols = 0, pdschStartSymbol = 0; + uint16_t startPrb = 0, maxFreePRB = 0; + uint16_t crnti = 0, mcsIdx = 0; + uint32_t accumalatedSize = 0; + SchUeCb *ueCb = NULLP; + CmLListCp *lcLL = NULLP; + DlMsgAlloc *dciSlotAlloc, *dlMsgAlloc; + SlotTimingInfo pdcchTime, pdschTime, pucchTime; + uint16_t rsvdDedicatedPRB = 0; + + /* TX_PAYLOAD_HDR_LEN: Overhead which is to be Added once for any UE while estimating Accumulated TB Size + * Following flag added to keep the record whether TX_PAYLOAD_HDR_LEN is added to the first Node getting allocated. + * If both Dedicated and Default LC lists are present then First LC in Dedicated List will include this overhead + * else if only Default list is present then first node in this List will add this overhead len*/ + bool isTxPayloadLenAdded = FALSE; + GET_CRNTI(crnti,ueId); + ueCb = &cell->ueCb[ueId-1]; + + if (isRetx == FALSE) + { + if(schDlGetAvlHqProcess(cell, ueCb, hqP) != ROK) + { + return false; + } + } + + if(findValidK0K1Value(cell, currTime, ueId, ueCb->ueCfg.spCellCfg.servCellCfg.initDlBwp.k0K1TblPrsnt,\ + &pdschStartSymbol, &pdschNumSymbols, &pdcchTime, &pdschTime, &pucchTime, isRetx, *hqP) != true ) + { + /* If a valid combination of slots to scheduled PDCCH, PDSCH and PUCCH is + * not found, do not perform resource allocation. Return from here. */ + return false; + } + + /* allocate PDCCH and PDSCH resources for the ue */ + if(cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId-1] == NULL) + { + + SCH_ALLOC(dciSlotAlloc, sizeof(DlMsgAlloc)); + if(!dciSlotAlloc) + { + DU_LOG("\nERROR --> SCH : Memory Allocation failed for ded DL msg alloc"); + return false; + } + cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId -1] = dciSlotAlloc; + memset(dciSlotAlloc, 0, sizeof(DlMsgAlloc)); + dciSlotAlloc->crnti = crnti; + } + else + { + dciSlotAlloc = cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId -1]; + } + /* Dl ded Msg info is copied, this was earlier filled in macSchDlRlcBoInfo */ + fillDlMsgInfo(&dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo].dlMsgInfo, dciSlotAlloc->crnti, isRetx, *hqP); + dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo].isRetx = isRetx; + + + if (isRetx == FALSE) + { + /*Re-Initalization per UE*/ + /* scheduled LC data fill */ + dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo].numLc = 0; + isTxPayloadLenAdded = FALSE; /*Re-initlaize the flag for every UE*/ + accumalatedSize = 0; + + for(lcIdx = 0; lcIdx < MAX_NUM_LC; lcIdx++) + { + if(ueCb->dlInfo.dlLcCtxt[lcIdx].bo) + { + /*Check the LC is Dedicated or default and accordingly LCList will + * be used*/ + if(ueCb->dlInfo.dlLcCtxt[lcIdx].isDedicated) + { + lcLL = &((*hqP)->dlLcPrbEst.dedLcList); + rsvdDedicatedPRB = ueCb->dlInfo.dlLcCtxt[lcIdx].rsvdDedicatedPRB; + } + else + { + lcLL = &((*hqP)->dlLcPrbEst.defLcList); + } + + /*[Step2]: Update the reqPRB and Payloadsize for this LC in the appropriate List*/ + if(updateLcListReqPRB(lcLL, ueCb->dlInfo.dlLcCtxt[lcIdx].lcId,\ + (ueCb->dlInfo.dlLcCtxt[lcIdx].bo + MAC_HDR_SIZE)) != ROK) + { + DU_LOG("\nERROR --> SCH : Updation in LC List Failed"); + /* Free the dl ded msg info allocated in macSchDlRlcBoInfo */ + if(dciSlotAlloc->numSchedInfo == 0) + { + SCH_FREE(dciSlotAlloc, sizeof(DlMsgAlloc)); + cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId -1] = NULL; + } + else + memset(&dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo], 0, sizeof(DlMsgSchInfo)); + return false; + } + } + ueCb->dlInfo.dlLcCtxt[lcIdx].bo = 0; + }//End of for loop + if (((*hqP)->dlLcPrbEst.defLcList.count == 0) && ( ((*hqP)->dlLcPrbEst.dedLcList.count == 0))) + { + DU_LOG("\nDEBUG --> SCH : No pending BO for any LC id\n"); + UNSET_ONE_BIT(ueId, cell->boIndBitMap); + + /* Free the dl ded msg info allocated in macSchDlRlcBoInfo */ + if(dciSlotAlloc->numSchedInfo == 0) + { + SCH_FREE(dciSlotAlloc, sizeof(DlMsgAlloc)); + cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId -1] = NULL; + } + else + memset(&dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo], 0, sizeof(DlMsgSchInfo)); + + /*TRUE because this UE has nothing to be scheduled*/ + return true; + } + } + + /*[Step3]: Calculate Best FREE BLOCK with MAX PRB count*/ + maxFreePRB = searchLargestFreeBlock(cell, pdschTime, &startPrb, DIR_DL); + + /*[Step4]: Estimation of PRB and BO which can be allocated to each LC in + * the list based on RRM policy*/ + + /*Either this UE contains no reservedPRB pool fir dedicated S-NSSAI or + * Num of Free PRB available is not enough to reserve Dedicated PRBs*/ + if(isRetx == FALSE) + { + if(maxFreePRB != 0) + { + mcsIdx = ueCb->ueCfg.dlModInfo.mcsIndex; + + if(((*hqP)->dlLcPrbEst.dedLcList.count == NULLP) + || ((maxFreePRB < rsvdDedicatedPRB))) + { + (*hqP)->dlLcPrbEst.sharedNumPrb = maxFreePRB; + DU_LOG("\nDEBUG --> SCH : DL Only Default Slice is scheduled, sharedPRB Count:%d",\ + (*hqP)->dlLcPrbEst.sharedNumPrb); + + /*PRB Alloc for Default LCs*/ + prbAllocUsingRRMPolicy(&((*hqP)->dlLcPrbEst.defLcList), FALSE, mcsIdx, pdschNumSymbols,\ + &((*hqP)->dlLcPrbEst.sharedNumPrb), NULLP, &isTxPayloadLenAdded, NULLP); + } + else + { + (*hqP)->dlLcPrbEst.sharedNumPrb = maxFreePRB - rsvdDedicatedPRB; + /*PRB Alloc for Dedicated LCs*/ + prbAllocUsingRRMPolicy(&((*hqP)->dlLcPrbEst.dedLcList), TRUE, mcsIdx, pdschNumSymbols,\ + &((*hqP)->dlLcPrbEst.sharedNumPrb), &(rsvdDedicatedPRB), &isTxPayloadLenAdded, NULLP); + + /*PRB Alloc for Default LCs*/ + prbAllocUsingRRMPolicy(&((*hqP)->dlLcPrbEst.defLcList), FALSE, mcsIdx, pdschNumSymbols, \ + &((*hqP)->dlLcPrbEst.sharedNumPrb), &(rsvdDedicatedPRB), &isTxPayloadLenAdded, NULLP); + } + } + } + + /*[Step5]:Traverse each LCID in LcList to calculate the exact Scheduled Bytes + * using allocated BO per LC and Update dlMsgAlloc(BO report for MAC*/ + if (isRetx == FALSE) + { + if((*hqP)->dlLcPrbEst.dedLcList.count != 0) + updateGrantSizeForBoRpt(&((*hqP)->dlLcPrbEst.dedLcList), dciSlotAlloc, NULLP, &(accumalatedSize)); + + updateGrantSizeForBoRpt(&((*hqP)->dlLcPrbEst.defLcList), dciSlotAlloc, NULLP, &(accumalatedSize)); + } + else + { + accumalatedSize = (*hqP)->tbInfo[0].tbSzReq; + } + + /*Below case will hit if NO LC(s) are allocated due to resource crunch*/ + if (!accumalatedSize) + { + if(maxFreePRB == 0) + { + DU_LOG("\nERROR --> SCH : NO FREE PRB!!"); + } + else + { + /*Schedule the LC for next slot*/ + DU_LOG("\nDEBUG --> SCH : No LC has been scheduled"); + } + /* Not Freeing dlMsgAlloc as ZERO BO REPORT to be sent to RLC so that + * Allocation can be done in next slot*/ + return false; + } + + /*[Step6]: pdcch and pdsch data is filled */ + if((schDlRsrcAllocDlMsg(cell, pdschTime, crnti, accumalatedSize, dciSlotAlloc, startPrb, pdschStartSymbol, pdschNumSymbols, isRetx, *hqP)) != ROK) + { + DU_LOG("\nERROR --> SCH : Scheduling of DL dedicated message failed"); + + /* Free the dl ded msg info allocated in macSchDlRlcBoInfo */ + if(dciSlotAlloc->numSchedInfo == 0) + { + SCH_FREE(dciSlotAlloc, sizeof(DlMsgAlloc)); + cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId -1] = NULL; + } + else + { + memset(&dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo], 0, sizeof(DlMsgSchInfo)); + } + return false; + } + + /* TODO : Update the scheduling byte report for multiple LC based on QCI + * and Priority */ + /* As of now, the total number of bytes scheduled for a slot is divided + * equally amongst all LC with pending data. This is avoid starving of any + * LC + * */ +#if 0 + accumalatedSize = accumalatedSize/dlMsgAlloc->numLc; + for(lcIdx = 0; lcIdx < dlMsgAlloc->numLc; lcIdx ++) + dlMsgAlloc->lcSchInfo[lcIdx].schBytes = accumalatedSize; +#endif + + /* Check if both DCI and DL_MSG are sent in the same slot. + * If not, allocate memory for DL_MSG PDSCH slot to store PDSCH info */ + + if(pdcchTime.slot == pdschTime.slot) + { + dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo].pduPres = BOTH; + dciSlotAlloc->numSchedInfo++; + } + else + { + /* Allocate memory to schedule dlMsgAlloc to send DL_Msg, pointer will be checked at schProcessSlotInd() */ + if(cell->schDlSlotInfo[pdschTime.slot]->dlMsgAlloc[ueId-1] == NULLP) + { + SCH_ALLOC(dlMsgAlloc, sizeof(DlMsgAlloc)); + if(dlMsgAlloc == NULLP) + { + DU_LOG("\nERROR --> SCH : Memory Allocation failed for dlMsgAlloc"); + if(dciSlotAlloc->numSchedInfo == 0) + { + SCH_FREE(dciSlotAlloc, sizeof(DlMsgAlloc)); + cell->schDlSlotInfo[pdcchTime.slot]->dlMsgAlloc[ueId-1] = NULLP; + } + else + memset(&dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo], 0, sizeof(DlMsgSchInfo)); + return false; + } + cell->schDlSlotInfo[pdschTime.slot]->dlMsgAlloc[ueId-1] = dlMsgAlloc; + memset(dlMsgAlloc, 0, sizeof(DlMsgAlloc)); + dlMsgAlloc->crnti = dciSlotAlloc->crnti; + } + else + dlMsgAlloc = cell->schDlSlotInfo[pdschTime.slot]->dlMsgAlloc[ueId-1]; + + /* Copy all DL_MSG info */ + memcpy(&dlMsgAlloc->dlMsgSchedInfo[dlMsgAlloc->numSchedInfo], \ + &dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo], sizeof(DlMsgSchInfo)); + dlMsgAlloc->dlMsgSchedInfo[dlMsgAlloc->numSchedInfo].dlMsgPdcchCfg.dci.pdschCfg = \ + &dlMsgAlloc->dlMsgSchedInfo[dlMsgAlloc->numSchedInfo].dlMsgPdschCfg; + + /* Assign correct PDU types in corresponding slots */ + dlMsgAlloc->dlMsgSchedInfo[dlMsgAlloc->numSchedInfo].pduPres = PDSCH_PDU; + dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo].pduPres = PDCCH_PDU; + dciSlotAlloc->dlMsgSchedInfo[dciSlotAlloc->numSchedInfo].pdschSlot = pdschTime.slot; + + dciSlotAlloc->numSchedInfo++; + dlMsgAlloc->numSchedInfo++; + } + + schAllocPucchResource(cell, pucchTime, crnti, ueCb, isRetx, *hqP); + + cell->schDlSlotInfo[pdcchTime.slot]->pdcchUe = ueId; + cell->schDlSlotInfo[pdschTime.slot]->pdschUe = ueId; + cell->schUlSlotInfo[pucchTime.slot]->pucchUe = ueId; + + /* after allocation is done, unset the bo bit for that ue */ + UNSET_ONE_BIT(ueId, cell->boIndBitMap); + return true; +} + +/******************************************************************* +* +* @brief Process DL Resource allocation for Page +* +* @details +* +* Function : schProcDlPageAlloc +* +* Functionality: Process DL Resource allocation for Page +* +* @params[in] SchCellCb *cell, SlotTimingInfo currTime, Inst schInst +* +* @return pointer to return Value(ROK, RFAILED) +* +* ****************************************************************/ +uint8_t schProcDlPageAlloc(SchCellCb *cell, SlotTimingInfo currTime, Inst schInst) +{ + DlPageAlloc dlPageAlloc; + CmLList *pageInfoNode = NULLP; + SchPageInfo *pageInfo = NULLP; + SlotTimingInfo pdschTime; + uint32_t tbSize = 0; + uint16_t startPrb = 0, maxFreePRB = 0, nPRB = 0; + uint8_t ret = RFAILED; + + pageInfoNode = schPageInfoSearchFromPageList(currTime, &(cell->pageCb.pageIndInfoRecord[currTime.sfn])); + + if(pageInfoNode == NULLP) + { + return ROK; + } + pageInfo = (SchPageInfo *)pageInfoNode->node; + + while(true) + { + dlPageAlloc.cellId = currTime.cellId; + + ADD_DELTA_TO_TIME(currTime, dlPageAlloc.dlPageTime, PHY_DELTA_DL + SCHED_DELTA); + dlPageAlloc.shortMsgInd = FALSE; + pdschTime = dlPageAlloc.dlPageTime; + + /*Calculate Best FREE BLOCK with MAX PRB count*/ + maxFreePRB = searchLargestFreeBlock(cell, pdschTime, &startPrb, DIR_DL); + + if(maxFreePRB != 0) + { + tbSize = calculateEstimateTBSize(pageInfo->msgLen, pageInfo->mcs, NUM_PDSCH_SYMBOL, maxFreePRB, &nPRB); + } + else + { + DU_LOG("\nERROR --> SCH: Unable to get any free block for Paging at SFN:%d, SLOT:%d",\ + pdschTime.sfn, pdschTime.slot); + break; + } + /*Fill PDCCH: PDCCH Cfg is same as SIB1 as Paging will be a broadcast message*/ + memcpy(&dlPageAlloc.pagePdcchCfg, &cell->cellCfg.sib1SchCfg.sib1PdcchCfg, sizeof(PdcchCfg)); + dlPageAlloc.pagePdcchCfg.dci.rnti = P_RNTI; + + /*Fill BWP*/ + memcpy(&dlPageAlloc.bwp, &cell->cellCfg.sib1SchCfg.bwp, sizeof(BwpCfg)); + + /*Fill PDSCH*/ + if(schFillPagePdschCfg(cell, &dlPageAlloc.pagePdschCfg, pdschTime, tbSize, pageInfo->mcs, startPrb) != ROK) + { + DU_LOG("\nERROR --> SCH: Issue in PDSCH Allocation for Paging at SFN:%d, SLOT:%d",\ + pdschTime.sfn, pdschTime.slot); + break; + } + dlPageAlloc.pagePdcchCfg.dci.pdschCfg = &dlPageAlloc.pagePdschCfg; + + /*Fill Page PDU information*/ + dlPageAlloc.dlPagePduLen = pageInfo->msgLen; + + SCH_ALLOC(dlPageAlloc.dlPagePdu, sizeof(dlPageAlloc.dlPagePduLen)); + + if(dlPageAlloc.dlPagePdu == NULLP) + { + DU_LOG("\nERROR --> SCH: Memory Allocation Failed during Page Resource allocation"); + break; + } + memcpy(dlPageAlloc.dlPagePdu, pageInfo->pagePdu, dlPageAlloc.dlPagePduLen); + + /* Send msg to MAC */ + if(sendDlPageAllocToMac(&dlPageAlloc, schInst) != ROK) + { + DU_LOG("\nERROR --> SCH : Sending DL Paging allocation from SCH to MAC failed"); + SCH_FREE(dlPageAlloc.dlPagePdu, sizeof(dlPageAlloc.dlPagePduLen)); + break; + } + ret = ROK; + break; + } + + /*Remove the Page Node*/ + SCH_FREE(pageInfo->pagePdu, pageInfo->msgLen); + schDeleteFromPageInfoList(&(cell->pageCb.pageIndInfoRecord[currTime.sfn]), pageInfoNode); + + return(ret); + +} + +/******************************************************************* + * + * @brief Handles slot indication at SCH + * + * @details + * + * Function : schProcessSlotInd + * + * Functionality: + * Handles TTI indication received from PHY + * + * @params[in] + * @return ROK - success + * RFAILED - failure + * + * ****************************************************************/ +uint8_t schProcessSlotInd(SlotTimingInfo *slotInd, Inst schInst) +{ + uint8_t ueId, ueIdx, ret = ROK; + uint16_t slot; + bool isRarPending = false, isRarScheduled = false; + bool isMsg4Pending = false, isMsg4Scheduled = false; + bool isUlGrantPending = false, isUlGrantScheduled = false; + bool isDlMsgPending = false, isDlMsgScheduled = false; + CmLList *pendingUeNode; + DlSchedInfo dlSchedInfo; + DlBrdcstAlloc *dlBrdcstAlloc = NULLP; + SchCellCb *cell = NULLP; + CmLList *node; + uint8_t* ueNode; + SchDlHqProcCb *hqP = NULLP; + SchUlHqProcCb *ulHqP = NULLP; + + memset(&dlSchedInfo, 0, sizeof(DlSchedInfo)); + schCalcSlotValues(*slotInd, &dlSchedInfo.schSlotValue); + dlBrdcstAlloc = &dlSchedInfo.brdcstAlloc; + dlBrdcstAlloc->ssbTrans = NO_TRANSMISSION; + dlBrdcstAlloc->sib1Trans = NO_TRANSMISSION; + + cell = schCb[schInst].cells[schInst]; + if(cell == NULLP) + { + DU_LOG("\nERROR --> SCH : Cell Does not exist"); + return RFAILED; + } + memcpy(&cell->slotInfo, slotInd, sizeof(SlotTimingInfo)); + dlBrdcstAlloc->ssbIdxSupported = SSB_IDX_SUPPORTED; + + dlSchedInfo.cellId = cell->cellId; + slot = dlSchedInfo.schSlotValue.broadcastTime.slot; + + /* Check for SSB occassion */ + dlBrdcstAlloc->ssbTrans = schCheckSsbOcc(cell, dlSchedInfo.schSlotValue.broadcastTime); + if(dlBrdcstAlloc->ssbTrans) + { + if(schBroadcastSsbAlloc(cell, dlSchedInfo.schSlotValue.broadcastTime, dlBrdcstAlloc) != ROK) + { + DU_LOG("\nERROR --> SCH : schBroadcastSsbAlloc failed"); + dlBrdcstAlloc->ssbTrans = NO_TRANSMISSION; + } + else + { + dlSchedInfo.isBroadcastPres = true; + if((dlBrdcstAlloc->ssbTrans == NEW_TRANSMISSION) && (!cell->firstSsbTransmitted)) + cell->firstSsbTransmitted = true; + } + } + + /* Check for SIB1 occassion */ + dlBrdcstAlloc->sib1Trans = schCheckSib1Occ(cell, dlSchedInfo.schSlotValue.broadcastTime); + if(dlBrdcstAlloc->sib1Trans) + { + if(schBroadcastSib1Alloc(cell, dlSchedInfo.schSlotValue.broadcastTime, dlBrdcstAlloc) != ROK) + { + DU_LOG("\nERROR --> SCH : schBroadcastSib1Alloc failed"); + dlBrdcstAlloc->sib1Trans = NO_TRANSMISSION; + } + else + { + dlSchedInfo.isBroadcastPres = true; + if((dlBrdcstAlloc->sib1Trans == NEW_TRANSMISSION) && (!cell->firstSib1Transmitted)) + cell->firstSib1Transmitted = true; + } + } + + /*Process Paging Msg*/ + schProcDlPageAlloc(cell, *slotInd, schInst); + + /* Select first UE in the linked list to be scheduled next */ + pendingUeNode = cell->ueToBeScheduled.first; + if(pendingUeNode) + { + if(pendingUeNode->node) + { + ueNode = (uint8_t *)pendingUeNode->node; + ueId = *(uint8_t *)(pendingUeNode->node); + /* If RAR is pending for this UE, schedule PDCCH,PDSCH to send RAR and + * PUSCH to receive MSG3 as per k0-k2 configuration*/ + if(cell->raReq[ueId-1] != NULLP) + { + isRarPending = true; + isRarScheduled = schProcessRaReq(schInst, cell, *slotInd, ueId); + } + + /*MSG3 retransmisson*/ + if(cell->raCb[ueId-1].retxMsg3HqProc) + { + schMsg3RetxSchedulingForUe(&(cell->raCb[ueId-1])); + } + + /* If MSG4 is pending for this UE, schedule PDCCH,PDSCH to send MSG4 and + * PUCCH to receive UL msg as per k0-k1 configuration */ + if (cell->ueCb[ueId-1].retxMsg4HqProc) //should work from dlmap later tbd + { + /* Retransmission of MSG4 */ + isMsg4Pending = true; + if(schProcessMsg4Req(cell, *slotInd, ueId, TRUE, &cell->ueCb[ueId-1].retxMsg4HqProc) == ROK) + isMsg4Scheduled = true; + } + else + { + /* First transmission of MSG4 */ + if(cell->raCb[ueId-1].msg4recvd) + { + isMsg4Pending = true; + if(schProcessMsg4Req(cell, *slotInd, ueId, FALSE, &cell->ueCb[ueId-1].msg4Proc) == ROK) + isMsg4Scheduled = true; + + /* If MSG4 scheduling failed, free the newly assigned HARQ process */ + if(!isMsg4Scheduled) + schDlReleaseHqProcess(cell->ueCb[ueId-1].msg4Proc); + } + } + + if(isRarPending || isMsg4Pending) + { + /* If RAR or MSG is successfully scheduled then + * remove UE from linked list since no pending msgs for this UE */ + if(isRarScheduled || isMsg4Scheduled) + { + SCH_FREE(pendingUeNode->node, sizeof(uint8_t)); + deleteNodeFromLList(&cell->ueToBeScheduled, pendingUeNode); + } + /* If RAR/MSG4 is pending but couldnt be scheduled then, + * put this UE at the end of linked list to be scheduled later */ + else + { + cmLListAdd2Tail(&cell->ueToBeScheduled, cmLListDelFrm(&cell->ueToBeScheduled, pendingUeNode)); + } + } + + /* DL Data */ + node = cell->ueCb[ueId-1].dlRetxHqList.first; + if(node != NULLP) + { + /* DL Data ReTransmisson */ + isDlMsgPending = true; + isDlMsgScheduled = schFillBoGrantDlSchedInfo(cell, *slotInd, ueId, TRUE, ((SchDlHqProcCb**) &(node->node))); + cmLListDelFrm(&cell->ueCb[ueId-1].dlRetxHqList, node); + } + else + { + /* DL Data new transmission */ + if((cell->boIndBitMap) & (1<ueCb[ueId-1].ulRetxHqList.first; + if(node != NULLP) + { + /* UL Data ReTransmisson */ + isUlGrantPending = true; + isUlGrantScheduled = schProcessSrOrBsrReq(cell, *slotInd, ueId, TRUE, (SchUlHqProcCb**) &(node->node)); + cmLListDelFrm(&cell->ueCb[ueId-1].ulRetxHqList, node); + } + else + { + /* UL Data new transmission */ + if(cell->ueCb[ueId-1].srRcvd || cell->ueCb[ueId-1].bsrRcvd) + { + isUlGrantPending = true; + isUlGrantScheduled = schProcessSrOrBsrReq(cell, *slotInd, ueId, FALSE, &ulHqP); + if(!isUlGrantScheduled) + schUlReleaseHqProcess(ulHqP, FALSE); + } + } + + if(!isUlGrantPending && !isDlMsgPending) + { + /* No action required */ + } + else if((isUlGrantPending && !isUlGrantScheduled) || (isDlMsgPending && !isDlMsgScheduled)) + { + cmLListAdd2Tail(&cell->ueToBeScheduled, cmLListDelFrm(&cell->ueToBeScheduled, pendingUeNode)); + } + else + { + SCH_FREE(ueNode, sizeof(uint8_t)); + deleteNodeFromLList(&cell->ueToBeScheduled, pendingUeNode); + } + } + } + + /* Check if any PDU is scheduled at this slot for any UE */ + for(ueIdx=0; ueIdxschDlSlotInfo[dlSchedInfo.schSlotValue.rarTime.slot]->rarAlloc[ueIdx] != NULLP) + { + slot = dlSchedInfo.schSlotValue.rarTime.slot; + dlSchedInfo.rarAlloc[ueIdx] = cell->schDlSlotInfo[slot]->rarAlloc[ueIdx]; + cell->schDlSlotInfo[slot]->rarAlloc[ueIdx] = NULLP; + } + + /* If DL-Msg PDCCH/PDSCH is scheduled for a UE at this slot, fill + * specific interface structure to send to MAC */ + if(cell->schDlSlotInfo[dlSchedInfo.schSlotValue.dlMsgTime.slot]->dlMsgAlloc[ueIdx] != NULLP) + { + slot = dlSchedInfo.schSlotValue.dlMsgTime.slot; + dlSchedInfo.dlMsgAlloc[ueIdx] = cell->schDlSlotInfo[slot]->dlMsgAlloc[ueIdx]; + cell->schDlSlotInfo[slot]->dlMsgAlloc[ueIdx] = NULLP; + } + } + + if(cell->schDlSlotInfo[dlSchedInfo.schSlotValue.ulDciTime.slot]->ulGrant != NULLP) + { + slot = dlSchedInfo.schSlotValue.ulDciTime.slot; + dlSchedInfo.ulGrant = cell->schDlSlotInfo[slot]->ulGrant; + cell->schDlSlotInfo[slot]->ulGrant = NULLP; + } + + /* Send msg to MAC */ + ret = sendDlAllocToMac(&dlSchedInfo, schInst); if(ret != ROK) { - DU_LOG("\nSending DL Broadcast allocation from SCH to MAC failed"); - RETVALUE(ret); + DU_LOG("\nERROR --> SCH : Sending DL Broadcast allocation from SCH to MAC failed"); + return (ret); } - - schUlResAlloc(cell, schInst); - return ret; + schInitDlSlot(cell->schDlSlotInfo[slot]); + schUlResAlloc(cell, schInst); + + return ret; } /**********************************************************************