--- /dev/null
+/*******************************************************************************
+################################################################################
+# Copyright (c) [2017-2019] [Radisys] #
+# #
+# Licensed under the Apache License, Version 2.0 (the "License"); #
+# you may not use this file except in compliance with the License. #
+# You may obtain a copy of the License at #
+# #
+# http://www.apache.org/licenses/LICENSE-2.0 #
+# #
+# Unless required by applicable law or agreed to in writing, software #
+# distributed under the License is distributed on an "AS IS" BASIS, #
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
+# See the License for the specific language governing permissions and #
+# limitations under the License. #
+################################################################################
+ *******************************************************************************/
+#include "common_def.h"
+#include "tfu.h"
+#include "lrg.h"
+#include "tfu.x"
+#include "lrg.x"
+#include "du_log.h"
+#include "du_app_mac_inf.h"
+#include "mac_sch_interface.h"
+#include "sch.h"
+#include "sch_utils.h"
+#include "cm_llist.h"
+
+SchMacDlReleaseHarqFunc schMacDlReleaseHarqOpts[] =
+{
+ packSchMacDlReleaseHarq,
+ MacSchReleaseDlHarqProc,
+ packSchMacDlReleaseHarq
+};
+
+typedef struct schCellCb SchCellCb;
+typedef struct schUeCb SchUeCb;
+void schDlHqEntReset(SchCellCb *cellCb, SchUeCb *ueCb, SchDlHqEnt *hqE);
+void schDlHqAddToFreeList(SchDlHqProcCb *hqP);
+
+/**
+ * @brief DL Harq entity intialization
+ *
+ * @details
+ *
+ * Function : schDlHqEntInit
+ *
+ * This function intialize DL Harq entity
+ *
+ * @param[in] SchCellCb *cellCb, cell cb pointer
+ * @param[in] SchUeCb *ueCb, ue cb pointer
+ * @return
+ * -# void
+ **/
+void schDlHqEntInit(SchCellCb *cellCb, SchUeCb *ueCb)
+{
+ ueCb->dlHqEnt.numHqPrcs = SCH_MAX_NUM_DL_HQ_PROC;
+ ueCb->dlHqEnt.maxHqTx = cellCb->cellCfg.schHqCfg.maxDlDataHqTx;
+ ueCb->dlHqEnt.cell = cellCb;
+ ueCb->dlHqEnt.ue =ueCb;
+ schDlHqEntReset(cellCb, ueCb, &ueCb->dlHqEnt);
+}
+/**
+ * @brief DL Harq entity Reset
+ *
+ * @details
+ *
+ * Function : schDlHqEntReset
+ *
+ * This function Reset DL Harq entity
+ *
+ * @param[in] SchCellCb *cellCb, cell cb pointer
+ * @param[in] SchUeCb *ueCb, ue cb pointer
+ * @param[in] SchDlHqEnt *hqE, Dl Harq entity pointer
+ * @return
+ * -# void
+ **/
+void schDlHqEntReset(SchCellCb *cellCb, SchUeCb *ueCb, SchDlHqEnt *hqE)
+{
+ uint8_t count = 0;
+ SchDlHqProcCb *hqP = NULL;
+ cmLListInit(&hqE->free);
+ cmLListInit(&hqE->inUse);
+
+ for(count=0; count < hqE->numHqPrcs; count++)
+ {
+ hqP = &(hqE->procs[count]);
+ hqP->procId = count;
+ hqP->hqEnt = hqE;
+ hqP->maxHqTxPerHqP = hqE->maxHqTx;
+ hqP->dlHqEntLnk.node = (PTR)hqP;
+ hqP->dlHqProcLink.node = (PTR)hqP;
+ hqP->ulSlotLnk.node = (PTR)hqP;
+ schDlHqAddToFreeList(hqP);
+ }
+}
+/**
+ * @brief Add hq process to free list of DL Harq entity
+ *
+ * @details
+ *
+ * Function : schDlHqAddToFreeList
+ *
+ * This function adds hq process to free list of DL Harq entity
+ *
+ * @param[in] SchDlHqProcCb *hqP, DL harq process pointer
+ * @return
+ * -# void
+ **/
+void schDlHqAddToFreeList(SchDlHqProcCb *hqP)
+{
+ cmLListAdd2Tail(&(hqP->hqEnt->free), &hqP->dlHqEntLnk);
+}
+/**
+ * @brief Delete hq process from free list of DL Harq entity
+ *
+ * @details
+ *
+ * Function : schDlHqDeleteFromFreeList
+ *
+ * This function deletes hq process to free list of DL Harq entity
+ *
+ * @param[in] SchDlHqProcCb *hqP, DL harq process pointer
+ * @return
+ * -# void
+ **/
+void schDlHqDeleteFromFreeList(SchDlHqProcCb *hqP)
+{
+ cmLListDelFrm(&(hqP->hqEnt->free), &hqP->dlHqEntLnk);
+}
+/**
+ * @brief Add hq process to in use list of DL Harq entity
+ *
+ * @details
+ *
+ * Function : schDlHqAddToInUseList
+ *
+ * This function adds hq process to in use list of DL Harq entity
+ *
+ * @param[in] SchDlHqProcCb *hqP, DL harq process pointer
+ * @return
+ * -# void
+ **/
+void schDlHqAddToInUseList(SchDlHqProcCb *hqP)
+{
+ cmLListAdd2Tail(&(hqP->hqEnt->inUse), &hqP->dlHqEntLnk);
+}
+/**
+ * @brief Delete hq process from in use list of DL Harq entity
+ *
+ * @details
+ *
+ * Function : schDlHqDeleteFromInUseList
+ *
+ * This function deletes hq process to in use list of DL Harq entity
+ *
+ * @param[in] SchDlHqProcCb *hqP, DL harq process pointer
+ * @return
+ * -# void
+ **/
+void schDlHqDeleteFromInUseList(SchDlHqProcCb *hqP)
+{
+ cmLListDelFrm(&(hqP->hqEnt->inUse), &hqP->dlHqEntLnk);
+}
+/**
+ * @brief Get available Harq process from Harq entity
+ *
+ * @details
+ *
+ * Function : schDlGetAvlHqProcess
+ *
+ * This function fetches hq process from free list and puts in in use list
+ *
+ * @param[in] SchCellCb *cellCb, cell cb pointer
+ * @param[in] SchUeCb *ueCb, ue cb pointer
+ * @param[in] SchDlHqProcCb **hqP, Address of DL harq process pointer
+ * @return
+ * -# ROK
+ * -# RFAILED
+ **/
+uint8_t schDlGetAvlHqProcess(SchCellCb *cellCb, SchUeCb *ueCb, SchDlHqProcCb **hqP)
+{
+ SchDlHqProcCb *tmp;
+ if (ueCb->dlHqEnt.free.count == 0)
+ {
+ return RFAILED;
+ }
+ tmp = (SchDlHqProcCb*)(cmLListFirst(&(ueCb->dlHqEnt.free))->node);
+ if (NULLP == tmp)
+ {
+ return RFAILED;
+ }
+ schDlHqDeleteFromFreeList(tmp);
+ schDlHqAddToInUseList(tmp);
+ *hqP = tmp;
+ (*hqP)->maxHqTxPerHqP = ueCb->dlHqEnt.maxHqTx;
+ return ROK;
+}
+/**
+ * @brief Release Harq process from the DL Harq entity
+ *
+ * @details
+ *
+ * Function : schDlReleaseHqProcess
+ *
+ * This function releases Harq process from DL Harq entity
+ *
+ * @param[in] SchDlHqProcCb *hqP, DL harq process pointer
+ * @return
+ * -# void
+ **/
+void schDlReleaseHqProcess(SchDlHqProcCb *hqP)
+{
+ cmLListDeleteLList(&hqP->dlLcPrbEst.dedLcList);
+ cmLListDeleteLList(&hqP->dlLcPrbEst.defLcList);
+ schDlHqDeleteFromInUseList(hqP);
+ schDlHqAddToFreeList(hqP);
+}
+
+/*******************************************************************
+ *
+ * @brief Handles sending DL HARQ process release to MAC
+ *
+ * @details
+ *
+ * Function : sendDlHarqProcReleaseToMac
+ *
+ * Functionality:
+ * Sends DL DL HARQ process release to MAC from SCH
+ *
+ * @params[in]
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t sendDlHarqProcReleaseToMac(SchDlHqProcCb *hqP, Inst inst)
+{
+ Pst pst;
+ SchRlsHqInfo *rlsHqInfo;
+ memset(&pst, 0, sizeof(Pst));
+ FILL_PST_SCH_TO_MAC(pst, inst);
+ pst.event = EVENT_DL_REL_HQ_PROC;
+
+ SCH_ALLOC(rlsHqInfo, sizeof(SchRlsHqInfo));
+ rlsHqInfo->cellId = hqP->hqEnt->cell->cellId;
+ rlsHqInfo->numUes = 1;
+
+ SCH_ALLOC(rlsHqInfo->ueHqInfo, sizeof(SchUeHqInfo)*rlsHqInfo->numUes);
+ rlsHqInfo->ueHqInfo[0].crnti = hqP->hqEnt->ue->crnti;
+ rlsHqInfo->ueHqInfo[0].hqProcId = hqP->procId;
+
+ return(*schMacDlReleaseHarqOpts[pst.selector])(&pst, rlsHqInfo);
+}
+/**
+ * @brief Release Harq process TB from the DL Harq process
+ *
+ * @details
+ *
+ * Function : schDlReleaseHqPTb
+ *
+ * This function releases Harq process TB from DL Harq proces
+ *
+ * @param[in] SchDlHqProcCb *hqP, DL harq process pointer
+ * @param[in] uint8_t tbIdx, TB index
+ * @param[in] bool togNdi, indication to toggle NDI bit
+ * @return
+ * -# void
+ **/
+void schDlReleaseHqPTb(SchDlHqProcCb *hqP, uint8_t tbIdx, bool togNdi)
+{
+ if (TRUE == togNdi)
+ {
+ hqP->tbInfo[tbIdx].ndi ^= 1;
+ }
+
+ {
+ hqP->tbInfo[tbIdx].isAckNackDtx = HQ_ACK;
+ hqP->tbInfo[tbIdx].isEnabled = FALSE;
+ hqP->tbInfo[tbIdx].state = HQ_TB_ACKED;
+ hqP->tbInfo[tbIdx].txCntr = 0;
+ if (HQ_TB_ACKED == hqP->tbInfo[tbIdx^1].state)
+ {
+ schDlReleaseHqProcess(hqP);
+ sendDlHarqProcReleaseToMac(hqP, hqP->hqEnt->cell->instIdx);
+ }
+ }
+}
+/**
+ * @brief Handles failure of HARQ process TB
+ *
+ * @details
+ *
+ * Function : schDlHqTbFail
+ *
+ * This function handles failure of HARQ process TB
+ *
+ * @param[in] SchDlHqProcCb *hqP, DL harq process pointer
+ * @param[in] uint8_t tbIdx, TB index
+ * @param[in] bool isMaxRetx, indicates max retransmission
+ * @return
+ * -# void
+ **/
+void schDlHqTbFail(SchDlHqProcCb *hqP, uint8_t tbIdx, bool isMaxRetx)
+{
+ if (isMaxRetx)
+ {
+ schDlReleaseHqPTb(hqP, tbIdx, TRUE);
+ }
+ else
+ {
+ hqP->tbInfo[tbIdx].state = HQ_TB_NACKED;
+ if (HQ_TB_WAITING == hqP->tbInfo[tbIdx^1].state)
+ {
+ cmLListAdd2Tail( &(hqP->hqEnt->ue->dlRetxHqList), &hqP->dlHqProcLink);
+ }
+ }
+}
+/**
+ * @brief Handles Harq feedback for MSG4
+ *
+ * @details
+ *
+ * Function : schMsg4FeedbackUpdate
+ *
+ * This function handles Harq feedback for MSG4
+ *
+ * @param[in] SchDlHqProcCb *hqP, DL harq process pointer
+ * @param[in] uint8_t fdbk, Received feedback
+ * @return
+ * -# void
+ **/
+void schMsg4FeedbackUpdate(SchDlHqProcCb *hqP, uint8_t fdbk)
+{
+ hqP->tbInfo[0].isAckNackDtx = fdbk;
+ hqP->tbInfo[1].isAckNackDtx = HQ_TB_ACKED;
+ if (HQ_TB_ACKED == hqP->tbInfo[0].isAckNackDtx)
+ {
+ schDlReleaseHqPTb(hqP, 0, TRUE);
+ schDlReleaseHqPTb(hqP, 1, TRUE);
+ schMsg4Complete(hqP->hqEnt->ue);
+ }
+ else
+ {
+ if( hqP->tbInfo[0].txCntr >= hqP->hqEnt->cell->cellCfg.schHqCfg.maxMsg4HqTx)
+ {
+ schDlReleaseHqProcess(hqP);
+ hqP->hqEnt->ue->msg4Proc = NULLP;
+ hqP->hqEnt->ue->retxMsg4HqProc = NULLP;
+ /* Delete UE and RA context */
+ }
+ addUeToBeScheduled(hqP->hqEnt->cell,hqP->hqEnt->ue->ueId);
+ hqP->hqEnt->ue->retxMsg4HqProc = hqP;
+ }
+}
+/**
+ * @brief Handles Harq feedback for DL Data
+ *
+ * @details
+ *
+ * Function : schDlHqFeedbackUpdate
+ *
+ * This function handles Harq feedback for DL data
+ *
+ * @param[in] SchDlHqProcCb *hqP, DL harq process pointer
+ * @param[in] uint8_t fdbk1, Received feedback for TB -0
+ * @param[in] uint8_t fdbk2, Received feedback for TB -1
+ * @return
+ * -# void
+ **/
+void schDlHqFeedbackUpdate(SchDlHqProcCb *hqP, uint8_t fdbk1, uint8_t fdbk2)
+{
+ uint8_t tbIdx;
+ for (tbIdx = 0; tbIdx <2; tbIdx++)
+ {
+ if (HQ_TB_WAITING == hqP->tbInfo[tbIdx].state)
+ {
+ hqP->tbInfo[tbIdx].isAckNackDtx = (0 == tbIdx)?fdbk1:fdbk2;
+ }
+ if (TRUE == hqP->tbInfo[tbIdx].isEnabled)
+ {
+ if (HQ_TB_ACKED == hqP->tbInfo[tbIdx].isAckNackDtx)
+ {
+ schDlReleaseHqPTb(hqP, tbIdx, TRUE);
+ }
+ else
+ {
+ if(hqP->tbInfo[tbIdx].txCntr >= hqP->maxHqTxPerHqP)
+ {
+ schDlHqTbFail(hqP, tbIdx, TRUE);
+ }
+ else
+ {
+ schDlHqTbFail(hqP, tbIdx, FALSE);
+ addUeToBeScheduled(hqP->hqEnt->cell, hqP->hqEnt->ue->ueId);
+ }
+ }
+ }
+ }
+}
+/**********************************************************************
+ End of file
+ **********************************************************************/
Code Review / o-du / l2.git / blobdiff