+/* ****************************************************************
+ *
+ * @brief Process the DL Data transfer from DU APP
+ *
+ * @details
+ *
+ * Function : RlcProcDlUserDataTransfer
+ *
+ * Functionality: Process the DL transfer from DU APP
+ *
+ * @params[in] Post structure
+ * DL RRC Message info
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t RlcProcDlUserDataTransfer(Pst *pst, RlcDlUserDataInfo *dlDataMsgInfo)
+{
+ Buffer *mBuf = NULLP;
+ RlcDatReqInfo *datReqInfo = NULLP;
+
+ if(dlDataMsgInfo->dlMsg == NULLP)
+ {
+ DU_LOG("\nERROR --> RLC_DL : Received DL message is NULLP in RlcProcDlUserDataTransfer()");
+ return RFAILED;
+ }
+ RLC_SHRABL_STATIC_BUF_ALLOC(RLC_MEM_REGION_DL, RLC_POOL, datReqInfo, sizeof(RlcDatReqInfo));
+ if(!datReqInfo)
+ {
+ DU_LOG("\nERROR --> RLC_DL : Memory allocation failed for DatReq in RlcProcDlUserDataTransfer()");
+ ODU_PUT_MSG_BUF(dlDataMsgInfo->dlMsg);
+ RLC_SHRABL_STATIC_BUF_FREE(pst->region, pst->pool, dlDataMsgInfo, sizeof(RlcDlUserDataInfo));
+ return RFAILED;
+ }
+
+ datReqInfo->rlcId.rbType = RB_TYPE_DRB;
+ datReqInfo->rlcId.rbId = dlDataMsgInfo->rbId;
+ datReqInfo->rlcId.ueId = dlDataMsgInfo->ueIdx;
+ datReqInfo->rlcId.cellId = dlDataMsgInfo->cellId;
+ datReqInfo->lcType = LCH_DTCH;
+ datReqInfo->sduId = ++(rlcCb[pst->dstInst]->dlSduId);
+ mBuf = dlDataMsgInfo->dlMsg;
+ if(rlcProcDlData(pst, datReqInfo, mBuf) != ROK)
+ {
+ return RFAILED;
+ }
+
+ /* Free memory allocated by du app */
+ RLC_SHRABL_STATIC_BUF_FREE(RLC_MEM_REGION_DL, RLC_POOL, datReqInfo, sizeof(RlcDatReqInfo));
+ RLC_SHRABL_STATIC_BUF_FREE(pst->region, pst->pool, dlDataMsgInfo, sizeof(RlcDlUserDataInfo));
+ return ROK;
+}
+
+/*******************************************************************
+ *
+ * @brief sending UE delete response to DU
+ *
+ * @details
+ *
+ * Function : sendRlcUeDeleteRspToDu
+ *
+ * Functionality:
+ * sending UE delete response to DU
+ *
+ * @params[in] uint8_t ueIdx, uint8_t cellId, UeDeleteResult result
+ *
+ * @return ROK - success
+ * RFAILED - failure
+ *
+ * ****************************************************************/
+uint8_t sendRlcUeDeleteRspToDu(uint8_t ueIdx, uint16_t cellId, UeDeleteResult result)
+{
+ Pst pst;
+ RlcUeDeleteRsp *ueDeleteRsp = NULLP;
+
+ FILL_PST_RLC_TO_DUAPP(pst, RLC_UL_INST, EVENT_RLC_UE_DELETE_RSP);
+
+ RLC_ALLOC_SHRABL_BUF(pst.region, pst.pool, ueDeleteRsp, sizeof(RlcUeDeleteRsp));
+ if(!ueDeleteRsp)
+ {
+ DU_LOG("\nERROR --> RLC: sendRlcUeDeleteRspToDu(): Memory allocation failed ");
+ return RFAILED;
+ }
+ else
+ {
+ ueDeleteRsp->cellId = cellId;
+ ueDeleteRsp->ueIdx = ueIdx;
+ ueDeleteRsp->result = result;
+
+ if(rlcSendUeDeleteRspToDu(&pst, ueDeleteRsp) == ROK)
+ {
+ DU_LOG("\nDEBUG --> RLC: UE Delete response send successfully");
+ }
+ else
+ {
+ DU_LOG("\nERROR --> RLC: SendRlcUeDeleteRspToDu():Failed to send UE Delete response to DU");
+ RLC_FREE_SHRABL_BUF(pst.region, pst.pool, ueDeleteRsp, sizeof(RlcUeDeleteRsp));
+ return RFAILED;
+ }
+ }
+ return ROK;
+}
+
+/* ****************************************************************
+*
+* @brief filling RLC UE delete configuration
+*
+* @details
+*
+* Function : fillRlcCfgInfo
+*
+* Functionality: filling RLC UE delete configuration
+*
+* @params[in] RlcUlUeCb *ueCb, RlcCfgInfo *rlcUeCfg
+*
+* @return void
+*
+* ****************************************************************/
+
+void fillRlcUeDelInfo(RlcUlUeCb *ueCb, RlcCfgInfo *rlcUeCfg)
+{
+ uint8_t lcIdx;
+
+ rlcUeCfg->ueId = ueCb->ueId;
+ rlcUeCfg->cellId = ueCb->cellId;
+ rlcUeCfg->numEnt = 0;
+ for(lcIdx=0; lcIdx<RLC_MAX_LCH_PER_UE && rlcUeCfg->numEnt < 1; lcIdx++)
+ {
+ if(ueCb->lCh[lcIdx].ulRbCb != NULLP)
+ {
+ rlcUeCfg->entCfg[rlcUeCfg->numEnt].rbId = 0;
+ rlcUeCfg->entCfg[rlcUeCfg->numEnt].rbType = 0;
+ rlcUeCfg->entCfg[rlcUeCfg->numEnt].cfgType = CKW_CFG_DELETE_UE;
+ rlcUeCfg->numEnt++;
+ }
+ }
+}
+
+/*******************************************************************
+*
+* @brief Handles Ue delete Request from DU APP
+*
+* @details
+*
+* Function : RlcProcUeDeleteReq
+*
+* Functionality:
+* Handles Ue delete Request from DU APP
+*
+* @params[in] Post structure pointer
+* RlcUeDelete pointer
+* @return ROK - success
+* RFAILED - failure
+*
+* ****************************************************************/
+
+uint8_t RlcProcUeDeleteReq(Pst *pst, RlcUeDelete *ueDelete)
+{
+ uint8_t ret = ROK;
+ RlcCb *gRlcCb = NULLP;
+ RlcCfgInfo *rlcUeCfg = NULLP;
+ RlcUlUeCb *ueCb = NULLP;
+ UeDeleteResult result=SUCCESSFUL;
+
+ DU_LOG("\nDEBUG --> RLC: UE Delete request received. CellID[%d] UEIDX[%d]",ueDelete->cellId, ueDelete->ueIdx);
+
+ if(ueDelete != NULLP)
+ {
+ gRlcCb = RLC_GET_RLCCB(pst->dstInst);
+ rlcDbmFetchUlUeCb(gRlcCb,ueDelete->ueIdx, ueDelete->cellId, &ueCb);
+ if(ueCb != NULLP)
+ {
+ if(ueDelete->cellId == ueCb->cellId)
+ {
+ RLC_ALLOC(gRlcCb, rlcUeCfg, sizeof(RlcCfgInfo));
+ if(rlcUeCfg == NULLP)
+ {
+ DU_LOG("\nERROR --> RLC: deleteRlcUeCb(): Failed to allocate memory");
+ ret = RFAILED;
+ }
+ else
+ {
+ memset(rlcUeCfg, 0, sizeof(RlcCfgInfo));
+ fillRlcUeDelInfo(ueCb, rlcUeCfg);
+ if(RlcProcCfgReq(pst, rlcUeCfg) != ROK)
+ {
+ DU_LOG("\nERROR --> RLC: deleteRlcUeCb(): Failed to delete UE information");
+ result = INVALID_UEID;
+ }
+ }
+ }
+ else
+ {
+ result = INVALID_CELLID;
+ }
+ }
+ else
+ {
+ result = INVALID_UEID;
+ }
+
+ if(result != SUCCESSFUL)
+ {
+ ret = sendRlcUeDeleteRspToDu(ueDelete->ueIdx, ueDelete->cellId, result);
+ if(ret != ROK)
+ {
+ DU_LOG("\nERROR --> RLC: RlcProcUeDeleteReq():Failed to send UE Delete response to DU");
+ }
+ }
+ RLC_FREE_SHRABL_BUF(pst->region, pst->pool, ueDelete, sizeof(RlcUeDelete));
+ }
+ else
+ {
+ DU_LOG("\nERROR --> RLC: RlcProcUeDeleteReq(): Recieved NULL pointer UE Delete ");
+ ret = RFAILED;
+ }
+ return ret;
+}
+