--- /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. #
+################################################################################
+*******************************************************************************/
+
+/********************************************************************20**
+
+ Name: RLC - AM module file
+
+ Type: C source file
+
+ Desc: Source code for Acknowledged Mode Module functions such as,
+
+ Transmission of data/control PDUs
+ Retransmission (Feedback in terms of status)
+ Polling
+ Assemble SDUs
+ Reception - reordering
+ Duplicate detection for byte segments
+ Reassemble SDUs
+
+ File: rlc_amm_ul.c
+
+*********************************************************************21*/
+
+/* header include files (.h) */
+#include "common_def.h"
+#include "lkw.h" /* LKW defines */
+#include "ckw.h" /* CKW defines */
+#include "kwu.h" /* KWU defines */
+#include "rgu.h" /* RGU defines */
+#include "rlc_err.h" /* Err defines */
+#include "rlc_env.h" /* RLC environment options */
+
+/* extern (.x) include files */
+#include "lkw.x" /* LKW */
+#include "ckw.x" /* CKW */
+#include "kwu.x" /* KWU */
+#include "rgu.x" /* RGU */
+
+#include "rlc_utils.h" /* RLC defines */
+#include "rlc_dl_ul_inf.h"
+#include "rlc_ul.h"
+/* Variable for logging, declared in cl */
+#ifndef RGL_SPECIFIC_CHANGES
+#ifndef TENB_ACC
+#ifndef LTE_PAL_ENB
+uint32_t ulrate_rgu;
+#endif
+#endif
+#endif
+#ifndef RGL_SPECIFIC_CHANGES
+#ifndef TENB_ACC
+#ifndef TENB_T2K3K_SPECIFIC_CHANGES
+#ifndef LTE_PAL_ENB
+uint32_t isMemThreshReached(Region region);
+#endif
+#else
+#ifndef LTE_PAL_ENB
+uint32_t isMemThreshReached(Region region);
+#endif
+#endif
+#endif
+#endif
+/** @file gp_amm_ul.c
+@brief RLC Acknowledged Mode Uplink Module
+**/
+#define RLC_MODULE (RLC_DBGMASK_AM | RLC_DBGMASK_UL) /* for debugging purpose */
+
+/* private function declarations */
+
+static void rlcAmmUlAssembleCntrlInfo ARGS ((RlcCb *gCb, RlcUlRbCb *rbCb));
+
+static uint8_t rlcAmmExtractHdr ARGS ((RlcCb *gCb,
+ RlcUlRbCb *rbCb,
+ Buffer *pdu,
+ RlcAmHdr *amHdr,
+ uint8_t *fByte));
+
+static bool rlcAmmUlPlacePduInRecBuf ARGS ((RlcCb *gCb,
+ Buffer *pdu,
+ RlcUlRbCb *rbCb,
+ RlcAmHdr *amHdr));
+
+static void rlcAmmTriggerStatus ARGS ((RlcCb *gCb,
+ RlcUlRbCb *rbCb,
+ RlcSn sn,
+ bool discFlg));
+
+static uint8_t rlcAmmUlReassembleSdus ARGS ((RlcCb *gCb,
+ RlcUlRbCb *rbCb,
+ RlcAmRecBuf *recBuf));
+
+static Void rlcAmmProcPduOrSeg ARGS ((RlcCb *gCb,
+ RlcUlRbCb *rbCb,
+ RlcAmHdr *amHdr,
+ Buffer *pdu));
+
+static Void rlcAmmUpdExpByteSeg ARGS ((RlcCb *gCb,RlcAmUl *amUl, RlcSeg* newSeg));
+
+static Void rlcAmmExtractElmnt ARGS ((RlcCb *gCb, Buffer *pdu, RlcExtHdr *hdrInfo));
+
+static Void rlcAmmUlHndlStatusPdu ARGS ((RlcCb *gCb,
+ RlcUlRbCb *rbCb,
+ Buffer *cntrlPdu,
+ uint8_t *fByte));
+
+/******************************************************************************
+
+ AM Module contains the following funcitons:
+
+ - rlcAmmProcessSdus
+ - rlcAmmUlAssembleCntrlInfo
+ - rlcResegRetxPdus
+ - rlcAssembleSdus
+ - kwChkandSetPoll
+ - rlcAmmProcessPdus
+ - rlcAmmUlHndlStatusPdu
+ - rlcAmmTriggerStatus
+ - rlcAmmUlReassembleSdus
+
+*******************************************************************************/
+/** @addtogroup ammode */
+/*@{*/
+
+/**
+ * @brief Private function to fill NACK information in status Pdu as per 5GNR
+ *
+ * @param[in] rbCb Ul RbCb
+ * @param[in] sn Sequence number of the PDU for which the NACK
+ * @param[in] isSegment TRUE means NACK for segment; FALSE for PDU
+ * @param[in] soStart SOStart
+ * @param[in] soEnd SOEnd
+ * @param[out] statusPdu status Pdu holder to be filled
+ * @param[in] prevNackSn It holds previous nack Sn
+ *
+ * @return S16
+ * The number of bytes required to encode this NACK information
+ *
+ */
+static uint8_t rlcAmmUlSetNackInfo(RlcUlRbCb *rbCb, RlcSn sn, bool isSegment, \
+ uint16_t soStart, uint16_t soEnd, RlcUdxDlStaPdu *statusPdu, RlcSn *prevNackSn)
+{
+ RlcNackInfo *nackInfo = (statusPdu->nackInfo + statusPdu->nackCount);
+ uint16_t sizeToBeEncd = 0; /* Status PDu size to be encoded */
+
+ /* In following cases we should increment the nackCnt & fill new NACK_SN info:
+ * 1) First NACK_SN of the statusdPdu
+ * 2) NACK_SN is not continuous with previous
+ * 3) NACK_SN is same as previuos but segments are not continuous
+ * 4) NACK_SN is continuous with previous but previous NACK_SN segments
+ * are not missing in sequence till end
+ */
+ if((*prevNackSn == 0xffffffff) || ((((*prevNackSn) + 1) & RLC_AMUL.snModMask) != sn) ||
+ (((*prevNackSn) == sn) && (((nackInfo->soEnd + 1) != soStart))) ||
+ ((nackInfo->isSegment) && (((*prevNackSn) + 1) == sn) && (nackInfo->soEnd != RLC_ALL_BYTES_MISSING)))
+ {
+ if(nackInfo->nackRange)
+ {
+ if((nackInfo->soEnd) && (!nackInfo->soStart))
+ {
+ /*First nack_sn of this nackRange not segmented but last is segmented */
+ sizeToBeEncd = 5; /*32 for soStart and soEnd and 8 for nackRange */
+ }
+ else
+ {
+ /*First nack_sn of this nackRange was segmented */
+ sizeToBeEncd = 1; /*8 for nackRange */
+ }
+ }
+
+ if(*prevNackSn != 0xffffffff)
+ {
+ /* Increment nackCount as this sn is continous */
+ statusPdu->nackCount++;
+ nackInfo = statusPdu->nackInfo + statusPdu->nackCount;
+ }
+
+ nackInfo->sn = sn;
+ nackInfo->isSegment = isSegment;
+ nackInfo->soStart = soStart;
+ nackInfo->soEnd = soEnd;
+ nackInfo->nackRange = 0;
+
+ if(isSegment)
+ {
+ sizeToBeEncd += ((RLC_AMUL.snLen == RLC_AM_CFG_12BIT_SN_LEN)?6:7); /* NACK,E1,E2,Sostart,SoEnd */
+ }
+ else
+ {
+ sizeToBeEncd += ((RLC_AMUL.snLen == RLC_AM_CFG_12BIT_SN_LEN)?2:3); /* NACK,E1,E2 */
+ }
+ }
+ else
+ {
+ if(!(nackInfo->nackRange))
+ {
+ nackInfo->nackRange++;
+ }
+ /* This case means there are continuous SNs/Segments. If it is the next
+ * Sn then increment nackRnage. if same SN but different segment then
+ * dont increment nackRange */
+ if((((*prevNackSn) + 1) & RLC_AMUL.snModMask) == sn)
+ {
+ nackInfo->nackRange++;
+ }
+
+ /* If NackRange is reached to max value then increment statusPdu->nackCount*/
+ if(nackInfo->nackRange == 255)
+ {
+ statusPdu->nackCount++;
+ if(nackInfo->isSegment)
+ {
+ sizeToBeEncd = 1; /* return only nackRangeSize*/
+ }
+ else if (isSegment)
+ {
+ /* First SN was not segmented of this nackRange but last SN is segmented */
+ sizeToBeEncd = 5; /* return size of soSatrt + soEnd + nackRnage */
+ }
+ }
+
+ if(isSegment)
+ {
+ nackInfo->isSegment = isSegment;
+ nackInfo->soEnd = soEnd;
+ }
+ else if(nackInfo->isSegment)
+ {
+ nackInfo->soEnd = RLC_ALL_BYTES_MISSING;
+ }
+ else
+ {
+ nackInfo->soStart = 0;
+ nackInfo->soEnd = 0;
+ }
+
+ }
+ *prevNackSn = sn;
+
+ return (sizeToBeEncd);
+}
+
+/**
+ * @brief Private handler to gather information required to create the STATUS
+ * PDU
+ *
+ * @details
+ * Scans the reception buffer and copies information to the UdxDlStaPdu
+ * structure about SN's and segments not yet received. This data is
+ * sent to the DL instance so that it can create an appropriate (depending
+ * on the grants from MAC) STATUS PDU and send it to MAC.
+ *
+ * @param[in] gCb RLC instance control block
+ * @param[in] rbCb Uplink RB control block
+ *
+ * @return Void
+ *
+ */
+static void rlcAmmUlAssembleCntrlInfo(RlcCb *gCb, RlcUlRbCb *rbCb)
+{
+ RlcUdxDlStaPdu *pStatusPdu;
+ RlcNackInfo *nackInfo;
+ RlcSn sn; /* sequence number */
+ RlcSn mSn; /* Mod val of sequence number */
+ RlcSn rxHighestStatus; /* Mod val of rxHighestStatus */
+ RlcSeg *seg; /* pdu segment */
+ uint16_t nackCnt = 0; /* Index for staPdu */
+ uint16_t seqSo; /* segmment offset */
+ RlcUdxUlSapCb *sapCb;
+ uint16_t staPduEncSize = 3; /* size that would be of the encoded
+ STATUS PDU, it is in bits; 15 for
+ first fixed part of STATUS PDU */
+ RlcAmRecBuf *recBuf = NULLP;
+ RlcSn prevNackSn = 0xffffffff;
+
+ sapCb = RLC_GET_UDX_SAP(gCb);
+
+ RLC_ALLOC_SHRABL_BUF(sapCb->pst.region,
+ sapCb->pst.pool,
+ pStatusPdu,
+ sizeof(RlcUdxDlStaPdu));
+
+#if (ERRCLASS & ERRCLS_ADD_RES)
+ /* Memory allocation failure can not be expected */
+ if(!pStatusPdu)
+ {
+ return;
+ }
+#endif
+
+ sn = RLC_AMUL.rxNext;
+ MODAMR(sn, mSn, RLC_AMUL.rxNext, RLC_AMUL.snModMask);
+ MODAMR(RLC_AMUL.rxHighestStatus, rxHighestStatus, RLC_AMUL.rxNext, RLC_AMUL.snModMask);
+
+ recBuf = rlcUtlGetRecBuf(RLC_AMUL.recBufLst, sn);
+
+ while (mSn < rxHighestStatus )
+ {
+ /* For missing PDUs */
+ if ((NULLP == recBuf) && nackCnt < RLC_MAX_NACK_CNT )
+ {
+ DU_LOG("\nERROR --> RLC_UL : rlcAmmUlAssembleCntrlInfo: Missing PDU's SN = %d UEID:%d \
+ CELLID:%d", sn, rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+ staPduEncSize += rlcAmmUlSetNackInfo(rbCb,
+ sn,
+ FALSE, /* isSegment */
+ 0, /* SOStart */
+ 0, /* SOEnd */
+ pStatusPdu,
+ &prevNackSn);
+ }
+ else if (recBuf && (recBuf->pdu == NULLP) &&
+ (recBuf->segLst.count > 0))
+ {
+ /* Scan through the byte segments of PDU and add this sn
+ with soStart and soEnd info to staPdu */
+
+ seqSo = 0;
+ RLC_LLIST_FIRST_SEG(recBuf->segLst, seg);
+ while (seg != NULLP && nackCnt < RLC_MAX_NACK_CNT)
+ {
+ /* For missing byte segments */
+ if (seg->amHdr.so != seqSo)
+ {
+ staPduEncSize += rlcAmmUlSetNackInfo(rbCb,
+ sn,
+ TRUE,
+ seqSo,
+ seg->amHdr.so - 1,
+ pStatusPdu,
+ &prevNackSn);
+
+ DU_LOG("\nDEBUG --> RLC_UL : rlcAmmUlAssembleCntrlInfo: Missing byte segment's"
+ " SN:%d UEID:%d CELLID:%d", sn, rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+ DU_LOG("\nDEBUG --> RLC_UL : rlcAmmUlAssembleCntrlInfo: soStart and soEnd = %d, %d \
+ UEID:%d CELLID:%d", seqSo, seg->amHdr.so - 1, rbCb->rlcId.ueId,
+ rbCb->rlcId.cellId);
+ }
+
+ seqSo = seg->soEnd + 1;
+ RLC_LLIST_NEXT_SEG(recBuf->segLst, seg);
+ }
+
+ /* Check if the last segment is missing */
+ RLC_LLIST_LAST_SEG(recBuf->segLst, seg);
+ if ((seg != NULLP) &&
+ (seg->amHdr.si != RLC_SI_LAST_SEG && nackCnt < RLC_MAX_NACK_CNT))
+ {
+ staPduEncSize += rlcAmmUlSetNackInfo(rbCb,
+ sn,
+ TRUE,
+ seqSo,
+ RLC_ALL_BYTES_MISSING,
+ pStatusPdu,
+ &prevNackSn);
+
+ DU_LOG("\nDEBUG --> RLC_UL : rlcAmmUlAssembleCntrlInfo: Missing (last) byte "
+ "segment's SN:%d UEID:%d CELLID:%d", sn, rbCb->rlcId.ueId,
+ rbCb->rlcId.cellId);
+ DU_LOG("\nDEBUG --> RLC_UL : rlcAmmUlAssembleCntrlInfo: soStart and soEnd = %d, %d\
+ UEID:%d CELLID:%d", seqSo, RLC_ALL_BYTES_MISSING, rbCb->rlcId.ueId,
+ rbCb->rlcId.cellId);
+ }
+ }
+
+
+ sn = (sn + 1) & (RLC_AMUL.snModMask); /* MOD 1024 */
+ MODAMR(sn, mSn, RLC_AMUL.rxNext, RLC_AMUL.snModMask);
+
+ /* Get the received Buffer the updated/next SN */
+ recBuf = rlcUtlGetRecBuf(RLC_AMUL.recBufLst, sn);
+
+ /* Find the next missing sequence number if nackCnt reaches maximum and
+ still Reordering window has some missing AMDPDUs / AMDPDU segments. The
+ next missing sequence number will be considered as the ack sequnece
+ number in the status pdu.*/
+ if((nackCnt == RLC_MAX_NACK_CNT) &&
+ ((recBuf == NULLP) ||
+ ((recBuf->pdu == NULLP) &&
+ (recBuf->segLst.count > 0))))
+ {
+ break;
+ }
+ }
+
+ /*Unfortunately i have write below peice of code here because kwAmmsetNackInfo()
+ * don't know that this is the last nackSn with nackRange*/
+ nackInfo = &(pStatusPdu->nackInfo[pStatusPdu->nackCount]);
+ if(nackInfo->nackRange)
+ {
+ if((nackInfo->soEnd) && (!nackInfo->soStart))
+ {
+ /*First nack_sn of this nackRange not segmented but last is segmented */
+ staPduEncSize += 5; /*32 for soStart and soEnd and 8 for nackRange */
+ }
+ else
+ {
+ /*First nack_sn of this nackRange was segmented */
+ staPduEncSize += 1; /*8 for nackRange */
+ }
+ }
+ /* nackCount is used as an index to nackInfo array but in status Pdu it
+ * should be equal to number nackInfo that are filled. hence incrementing by 1*/
+ if(prevNackSn != 0xffffffff)
+ {
+ pStatusPdu->nackCount++;
+ }
+ /* Update ACK SN with the last sn for which feedback is not assembled */
+ if ( mSn == rxHighestStatus)
+ {
+ pStatusPdu->ackSn = RLC_AMUL.rxHighestStatus;
+ }
+ else
+ {
+ pStatusPdu->ackSn = sn;
+ }
+
+ DU_LOG("\nINFO --> RLC_UL : rlcAmmUlAssembleCntrlInfo: ACK PDU's SN = %d"
+ "UEID:%d CELLID:%d", pStatusPdu->ackSn, rbCb->rlcId.ueId,
+ rbCb->rlcId.cellId);
+
+ pStatusPdu->controlBo = staPduEncSize; /*Its already in bytes */
+
+ RLC_AMUL.staTrg = FALSE;
+ RLC_AMUL.gatherStaPduInfo = FALSE;
+
+
+ if (rlcUlUdxStaPduReq(&sapCb->pst,
+ sapCb->spId,
+ &rbCb->rlcId,
+ pStatusPdu) != ROK)
+ {
+ DU_LOG("\nERROR --> RLC_UL : rlcAmmUlAssembleCntrlInfo: Failed to Send Sta Pdu UEID:%d \
+ CELLID:%d", rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+ RLC_FREE_SHRABL_BUF_WC(sapCb->pst.region,
+ sapCb->pst.pool,
+ pStatusPdu,
+ sizeof(RlcUdxDlStaPdu));
+ }
+
+ return;
+}
+
+#ifdef XEON_SPECIFIC_CHANGES
+uint32_t gRlcDatIndUL;
+#endif
+
+#ifdef T2K_TRIGGER_RLC_REEST
+uint32_t drpRlcDrbPack;
+#endif
+/**
+ * @brief Handler to process the PDUs received from MAC and send it to PDCP
+ *
+ * @details
+ * This function is invoked by UTL with the PDU(s) received from MAC.
+ * It reorders the received data PDUs and trigger status report as
+ * needed. Reassembles the SDUs in sequence and send it to PDCP.
+ * It also processes the control PDU
+ *
+ * @param[in] gCb RLC instance control block
+ * @param[in] rbCb RB control block
+ * @param[out] pduInfo PDU Info received from MAC
+ *
+ * @return Void
+ *
+ */
+#ifdef LTE_L2_MEAS
+void rlcAmmProcessPdus(RlcCb *gCb, RlcUlRbCb *rbCb, KwPduInfo *pduInfo, uint32_t ttiCnt)
+#else
+void rlcAmmProcessPdus(RlcCb *gCb, RlcUlRbCb *rbCb, KwPduInfo *pduInfo)
+#endif
+{
+ Buffer *pdu;
+ RlcAmUl *amUl;
+ RlcAmHdr amHdr;
+ uint8_t numPdu = 0;
+ uint8_t numPduToProcess;
+ RlcSn sn;
+ RlcSn tSn;
+ RlcSn mSn;
+ uint8_t fByte;
+ bool discFlg;
+#ifdef LTE_L2_MEAS_RLC
+ MsgLen rlcSduSz; /*Holds length of Rlc Sdu*/
+#endif /* LTE_L2_MEAS */
+
+ amUl = &RLC_AMUL;
+
+ numPduToProcess = RLC_MIN(pduInfo->numPdu, RGU_MAX_PDU);
+ DU_LOG("\nDEBUG --> RLC_UL : rlcAmmProcessPdus: numPdu[%d],numPduToProcess[%d] UEID:%d CELLID:%d",
+ numPdu, numPduToProcess, rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+
+ while (numPdu < numPduToProcess)
+ {
+ discFlg = FALSE;
+ pdu = pduInfo->mBuf[numPdu++];
+
+ if (! pdu)
+ {
+
+ DU_LOG("\nERROR --> RLC_UL : rlcAmmProcessPdus: Null Pdu UEID:%d CELLID:%d",
+ rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+ gCb->genSts.errorPdusRecv++;
+ break;
+ }
+#ifndef RGL_SPECIFIC_CHANGES
+#ifndef TENB_ACC
+#ifndef LTE_PAL_ENB
+ MsgLen len;
+ ODU_GET_MSG_LEN(pdu, &len);
+ ulrate_rgu += len;
+#endif
+#endif
+#endif
+ /* Extract AM PDU/SEG header Info */
+ RLC_MEM_ZERO(&amHdr, sizeof(RlcAmHdr));
+ /* Avoided the allocation of amHdr and sending
+ a single pointer */
+ if (rlcAmmExtractHdr(gCb, rbCb, pdu, &amHdr, &fByte) != ROK)
+ {
+ DU_LOG("\nERROR --> RLC_UL : rlcAmmProcessPdus: Header Extraction Failed UEID:%d CELLID:%d",
+ rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+ ODU_PUT_MSG_BUF(pdu);
+ gCb->genSts.errorPdusRecv++;
+ continue;
+ }
+ /* Check if its a control PDU */
+ if (amHdr.dc == 0)
+ {
+ rlcAmmUlHndlStatusPdu(gCb, rbCb, pdu, &fByte);
+ ODU_PUT_MSG_BUF(pdu);
+ continue;
+ }
+ if((amHdr.si == RLC_SI_LAST_SEG) && (!amHdr.so))
+ {
+ DU_LOG("\nERROR --> RLC_UL : rlcAmmProcessPdus: Dropping PDU because SO can't be zero\
+ for last segment sn:%u UEID:%d CELLID:%d", amHdr.sn, rbCb->rlcId.ueId,
+ rbCb->rlcId.cellId);
+ ODU_PUT_MSG_BUF(pdu);
+ continue;
+ }
+#ifndef RGL_SPECIFIC_CHANGES
+#ifdef LTE_TDD
+#ifndef TENB_ACC
+#ifndef TENB_T2K3K_SPECIFIC_CHANGES
+#ifndef LTE_PAL_ENB
+ /* Changed the condition to TRUE from ROK */
+ if(isMemThreshReached(rlcCb[0]->init.region) == TRUE)
+ {
+ uint32_t rlculdrop;
+ rlculdrop++;
+ ODU_PUT_MSG_BUF(pdu);
+ continue;
+ }
+#endif
+#else
+#ifndef LTE_PAL_ENB
+ /*ccpu00142274 - UL memory based flow control*/
+ if(isMemThreshReached(rlcCb[0]->init.region) != ROK)
+ {
+ uint32_t rlculdrop;
+ rlculdrop++;
+ ODU_PUT_MSG_BUF(pdu);
+ continue;
+ }
+#endif
+#endif
+#endif
+#endif
+#endif
+
+#ifdef T2K_TRIGGER_RLC_REEST
+ if(drpRlcDrbPack > 1000)
+ {
+ if(rbCb->rlcId.rbType == CM_LTE_DRB)
+ {
+ ODU_PUT_MSG_BUF(pdu);
+ continue;
+ }
+ }
+ drpRlcDrbPack++;
+#endif
+ /* Reordering data PDU */
+ sn = amHdr.sn;
+ if (rlcAmmUlPlacePduInRecBuf(gCb,pdu, rbCb, &amHdr) == TRUE)
+ {
+ RlcAmRecBuf *recBuf;
+ bool tmrRunning;
+ RlcSn tVrMr;
+ RlcSn mrxNextHighestRcvd;
+
+#ifdef LTE_L2_MEAS
+ rlcUtlCalUlIpThrPut(gCb, rbCb, pdu, ttiCnt);
+#endif /* LTE_L2_MEAS */
+
+ /* Update rxNextHighestRcvd */
+ MODAMR(sn, mSn, amUl->rxNext, amUl->snModMask);
+ MODAMR(amUl->rxNextHighestRcvd, mrxNextHighestRcvd, amUl->rxNext, amUl->snModMask);
+ if (mSn >= mrxNextHighestRcvd)
+ {
+ amUl->rxNextHighestRcvd = ((sn + 1) & (amUl->snModMask));
+
+ DU_LOG("\nDEBUG --> RLC_UL : rlcAmmProcessPdus: Updated rxNextHighestRcvd = %d UEID:%d CELLID:%d",
+ amUl->rxNextHighestRcvd, rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+ }
+
+ recBuf = rlcUtlGetRecBuf(amUl->recBufLst, sn);
+ if ((NULLP != recBuf) && ( recBuf->allRcvd))
+ {
+ /* deliver the reassembled RLC SDU to upper layer,
+ But not removed from the table */
+ rlcAmmUlReassembleSdus(gCb, rbCb, recBuf);
+ recBuf->isDelvUpperLayer = TRUE;
+
+ MODAMR(amUl->vrMr, tVrMr, amUl->rxNext, amUl->snModMask);
+
+ /* Update rxHighestStatus */
+ if (sn == amUl->rxHighestStatus)
+ {
+ tSn = (sn + 1) & (amUl->snModMask) ; /* MOD (2 Pwr SN LEN- 1) */
+
+ recBuf = rlcUtlGetRecBuf(amUl->recBufLst, tSn);
+ /* Scan through till the upper edge of the window */
+ MODAMR(tSn, mSn, amUl->rxNext, amUl->snModMask);
+ while (mSn <= tVrMr)
+ {
+ if ((NULLP == recBuf) || (!recBuf->allRcvd))
+ {
+ DU_LOG("\nDEBUG --> RLC_UL : rlcAmmProcessPdus: Updated rxHighestStatus:%d "
+ "UEID:%d CELLID:%d",
+ tSn,
+ rbCb->rlcId.ueId,
+ rbCb->rlcId.cellId);
+
+ amUl->rxHighestStatus = tSn;
+ break;
+ }
+ tSn = (tSn + 1) & (amUl->snModMask); /* MOD (2 Pwr SN LEN- 1) */
+ recBuf = rlcUtlGetRecBuf(amUl->recBufLst, tSn);
+ mSn++;
+ }
+ }
+
+
+ /* Update rxNext */
+ if (sn == amUl->rxNext)
+ {
+ tSn = sn;
+ recBuf = rlcUtlGetRecBuf(amUl->recBufLst, tSn);
+ MODAMR(tSn, mSn, amUl->rxNext, amUl->snModMask);
+ /* Scan through till the upper edge of the window */
+ while (mSn <= tVrMr)
+ {
+ if ((NULLP != recBuf) && (recBuf->allRcvd) &&
+ (TRUE == recBuf->isDelvUpperLayer))
+ {
+ /* RecBuf should remove from table
+ since PDU is already sent to upper layer */
+ recBuf->isDelvUpperLayer = FALSE;
+ rlcUtlDelRecBuf(amUl->recBufLst, recBuf, gCb);
+ }
+ else
+ {
+ amUl->rxNext = tSn;
+ amUl->vrMr = (amUl->rxNext + (RLC_AM_GET_WIN_SZ(amUl->snLen))) & (amUl->snModMask);
+ break;
+ }
+ tSn = (tSn + 1) & (amUl->snModMask);
+ recBuf = rlcUtlGetRecBuf(amUl->recBufLst, tSn);
+ mSn++;
+ }
+ }
+ }
+
+ /* Check if reAsmblTmr is running and update rxNextStatusTrig accordingly */
+ tmrRunning = rlcChkTmr(gCb,(PTR)rbCb, EVENT_RLC_AMUL_REASSEMBLE_TMR);
+ if (tmrRunning)
+ {
+ Bool snInWin = RLC_AM_CHK_SN_WITHIN_RECV_WINDOW(amUl->rxNextStatusTrig, amUl);
+ /* spec 38.322v15.3.0 - 5.2.3.2.3 */
+ if((amUl->rxNextStatusTrig == amUl->rxNext) || ( (!snInWin) &&
+ (amUl->rxNextStatusTrig != amUl->vrMr) )||
+ (amUl->rxNextStatusTrig == amUl->rxNext && recBuf &&recBuf->noMissingSeg))
+ {
+ rlcStopTmr(gCb,(PTR)rbCb, EVENT_RLC_AMUL_REASSEMBLE_TMR);
+ tmrRunning = FALSE;
+ DU_LOG("\nINFO --> RLC_UL: rlcAmmProcessPdus: Stopped ReAssembly Timer rxNextStatusTigger = %d"
+ "rxNextReassembly = %d", amUl->rxNextStatusTrig, amUl->rxNext);
+ }
+ }
+
+ if (!tmrRunning)
+ {
+ /* spec 38.322v15.3.0 - 5.2.3.2.3 */
+ if((amUl->rxNextHighestRcvd > amUl->rxNext) || ((amUl->rxNextHighestRcvd == amUl->rxNext) &&
+ (recBuf && (!recBuf->noMissingSeg))))
+ {
+ rlcStartTmr(gCb,(PTR)rbCb, EVENT_RLC_AMUL_REASSEMBLE_TMR);
+ amUl->rxNextStatusTrig = amUl->rxNextHighestRcvd;
+
+ DU_LOG("\nDEBUG --> RLC_UL : rlcAmmProcessPdus: Updated rxNextStatusTrig = %d"
+ "UEID:%d CELLID:%d", amUl->rxNextStatusTrig, rbCb->rlcId.ueId,
+ rbCb->rlcId.cellId);
+ }
+ }
+ }
+ else
+ {
+ discFlg = TRUE;
+ gRlcStats.amRlcStats.numULPdusDiscarded++;
+ }
+
+ if (amHdr.p)
+ {
+ rlcAmmTriggerStatus(gCb,rbCb, sn, discFlg);
+ }
+ }
+
+#ifdef LTE_L2_MEAS
+ rlcUtlCalUlIpThrPutIncTTI(gCb, rbCb,ttiCnt);
+#endif /* LTE_L2_MEAS */
+ gCb->genSts.pdusRecv += pduInfo->numPdu;
+ if (amUl->gatherStaPduInfo)
+ {
+ rlcAmmUlAssembleCntrlInfo(gCb,rbCb);
+ }
+
+ return;
+}
+
+
+/**
+ * @brief Private handler to extract header Information of the PDU
+ *
+ * @details
+ * This function extracts the header elements of the PDU and store them
+ * in db for future reference.
+ *
+ * fByte - is the first byte removed from the PDU as part of calling
+ * functions
+ *
+ * @param[in] gCb RLC instance control block
+ * @param[in] rbCb Uplink RB control block
+ * @param[in] pdu Received PDU
+ * @param[out] amHdr Pointer to the extracted AM header
+ * @param[out] fByte First byte removed from the PDU
+ *
+ * @return S16
+ * -# ROK
+ * -# RFAILED
+ *
+ */
+static uint8_t rlcAmmExtractHdr(RlcCb *gCb, RlcUlRbCb *rbCb, Buffer *pdu, RlcAmHdr *amHdr, uint8_t *fByte)
+{
+ uint8_t snByte;
+ RlcSn sn = 0;
+ MsgLen pduSz;
+ RlcExtHdr hdrInfo;
+
+ RLC_MEM_ZERO(&hdrInfo, sizeof(RlcExtHdr));
+
+ /* Extract fixed part of the header */
+ ODU_GET_MSG_LEN(pdu,&pduSz);
+ ODU_REM_PRE_MSG(fByte, pdu);
+ amHdr->dc = (*fByte & RLC_DC_POS) >> RLC_DC_SHT;
+ if (RLC_CNTRL_PDU == amHdr->dc)
+ {
+ //DU_LOG ("\nINFO --> RLC_UL : ++++++++++++ 5GNRLOG HDR extracted CTRL : \n");
+ return ROK;
+ }
+
+ amHdr->p = (*fByte & RLC_POLL_POS) >> RLC_POLL_SHT;
+
+ amHdr->si = (*fByte & RLC_SI_POS) >> RLC_SI_SHT;
+
+ /* 12 BIT SN */
+ if (rbCb->m.amUl.snLen == RLC_AM_CFG_12BIT_SN_LEN)
+ {
+ ODU_REM_PRE_MSG(&snByte, pdu);
+ sn = (RlcSn)(((*fByte & RLC_SN_POS_12BIT) << RLC_BYTE_LEN ) | snByte);
+ amHdr->sn = sn;
+ }
+ else if (rbCb->m.amUl.snLen == RLC_AM_CFG_18BIT_SN_LEN)
+ {
+ ODU_REM_PRE_MSG(&snByte, pdu);
+ sn = (RlcSn)(((*fByte & RLC_SN_POS_18BIT) << RLC_BYTE_LEN ) | snByte);
+
+ ODU_REM_PRE_MSG(&snByte, pdu);
+ sn = ((sn << RLC_BYTE_LEN) | snByte);
+
+ amHdr->sn = sn;
+ }
+ if ((amHdr->si != 0) && (amHdr->si != RLC_SI_FIRST_SEG))
+ {
+ hdrInfo.len = RLC_SO_LEN_5GNR;
+ rlcAmmExtractElmnt(gCb, pdu, &hdrInfo);
+ amHdr->so = hdrInfo.val;
+ pduSz -= 2;
+ }
+
+ return ROK;
+}
+
+#ifdef OLD
+/**
+ * @brief Private handler to extract header Information of the PDU
+ *
+ * @details
+ * This function extracts the header elements of the PDU and store them
+ * in db for future reference.
+ *
+ * fByte - is the first byte removed from the PDU as part of calling
+ * functions
+ *
+ * @param[in] gCb RLC instance control block
+ * @param[in] rbCb Uplink RB control block
+ * @param[in] pdu Received PDU
+ * @param[out] amHdr Pointer to the extracted AM header
+ * @param[out] fByte First byte removed from the PDU
+ *
+ * @return S16
+ * -# ROK
+ * -# RFAILED
+ *
+ */
+static S16 rlcAmmExtractHdrOld(RlcCb *gCb,Buffer *pdu,RlcAmHdr *amHdr,uint8_t *fByte)
+{
+ uint8_t e;
+ uint8_t snByte;
+ uint16_t sn;
+ MsgLen pduSz;
+ MsgLen totalSz = 0;
+ RlcExtHdr hdrInfo;
+
+ RLC_MEM_ZERO(&hdrInfo, sizeof(RlcExtHdr));
+
+ /* Extract fixed part of the header */
+ SFndLenMsg(pdu,&pduSz);
+ SRemPreMsg(fByte, pdu);
+ amHdr->dc = (*fByte & RLC_DC_POS) >> RLC_DC_SHT;
+ if (RLC_CNTRL_PDU == amHdr->dc)
+ {
+ return ROK;
+ }
+ /* kw002.201 : Changed the extraction of hdr elements to avoid */
+ /* function calls */
+ amHdr->rf = (*fByte & RLC_RF_POS) >> RLC_RF_SHT;
+ amHdr->p = (*fByte & RLC_POLL_POS) >> RLC_POLL_SHT;
+ amHdr->fi = (*fByte & RLC_FI_POS) >> RLC_FI_SHT;
+ e = amHdr->e = (*fByte & RLC_E_POS)>> RLC_E_SHT;
+
+ SRemPreMsg(&snByte, pdu);
+ sn = (uint16_t)(((*fByte & RLC_SN_POS) << RLC_BYTE_LEN ) | snByte);
+ amHdr->sn = sn;
+ if (amHdr->rf == 1)
+ {
+ /* Extract extn part of the header */
+ hdrInfo.len = RLC_LSF_LEN;
+ rlcAmmExtractElmnt(gCb, pdu, &hdrInfo);
+ amHdr->lsf = (uint8_t)hdrInfo.val;
+
+ hdrInfo.len = RLC_SO_LEN;
+ rlcAmmExtractElmnt(gCb, pdu, &hdrInfo);
+ amHdr->so = hdrInfo.val;
+ pduSz -= 2;
+ }
+
+ amHdr->numLi = 0;
+ /* Extract LIs */
+ while (e && (amHdr->numLi < RLC_MAX_UL_LI))
+ {
+ hdrInfo.len = RLC_E_LEN;
+ rlcAmmExtractElmnt(gCb, pdu, &hdrInfo);
+ e = amHdr->e = (uint8_t)hdrInfo.val;
+
+ /* Extract LI value*/
+ hdrInfo.len = RLC_LI_LEN;
+ rlcAmmExtractElmnt(gCb, pdu, &hdrInfo);
+ /* li = hdrInfo.val;*/
+
+ /* check if LI is zero */
+ if (! hdrInfo.val)
+ {
+ DU_LOG("\nERROR --> RLC_UL : Received LI as 0");
+ return RFAILED;
+ }
+
+ /* store the extracted LI value */
+ amHdr->li[amHdr->numLi++] = hdrInfo.val;
+ totalSz += hdrInfo.val; /* incrment the size by LI value */
+ }
+
+ /*ccpu00122597:PDU is dropped if liCnt exceeds RLC_MAX_LI*/
+ if(e && (amHdr->numLi >= RLC_MAX_UL_LI))
+ {
+ DU_LOG("\nERROR --> RLC_UL : LI Count [%u] exceeds Max LI Count[%u]",
+ amHdr->numLi, RLC_MAX_UL_LI);
+ return RFAILED;
+ }
+
+ /* first 2 bytes + Add one for Odd LI*/
+ pduSz -= ( amHdr->numLi + (amHdr->numLi >> 1) + 2 + (amHdr->numLi & 1) );
+
+ if ( totalSz >= pduSz )
+ {
+ DU_LOG("\nERROR --> RLC_UL : SN [%d]:Corrupted PDU as TotSz[%lu] PduSz[%lu] ",
+ amHdr->sn, totalSz, pduSz);
+ return RFAILED;
+ }
+
+ return ROK;
+}
+#endif
+
+/**
+ * @brief Private handler to process the status PDU
+ *
+ * @details
+ * Private handler invokded by rlcAmmProcessPdus to process the
+ * control PDU (status report) received from its peer RLC entity.
+ *
+ * - Decode the values from the received control pdu
+ * - Create a RlcUdxStaPdu structure, copy the values onto it and
+ * send it to the DL instance for further processing
+ *
+ * @param[in] gCb RLC instance control block
+ * @param[in] rbCb Uplink RB control block
+ * @param[in] cntrlPdu Control PDU received from MAC
+ * @param[in] fByte First byte already removed from the STATUS PDU
+ *
+ * @return Void
+ *
+ */
+static void rlcAmmUlHndlStatusPdu(RlcCb *gCb, RlcUlRbCb *rbCb, Buffer *cntrlPdu, uint8_t *fByte)
+{
+ uint8_t e1;
+ RlcExtHdr hdrInfo;
+ RlcUdxStaPdu *pStaPdu;
+ RlcUdxUlSapCb *sapCb;
+ uint8_t e3; /* NACK RANGE : 5GNR */
+ uint32_t snLen;
+ uint32_t snRange;
+ uint32_t resrvdBitsAckSn=0;
+ uint32_t resrvdBitsNackSn=0;
+
+ RLC_MEM_ZERO(&hdrInfo, sizeof(RlcExtHdr));
+
+ /* Extract the Control PDU */
+ hdrInfo.hdr = (*fByte << 1);
+ hdrInfo.pLen = 4;
+
+ /* D/C has been shifted in the calling function */
+ if (hdrInfo.hdr & 0xE0)
+ {
+ DU_LOG("\nINFO --> RLC_UL : rlcAmmUlHndlStatusPdu: Reserved value for CPT received UEID:%d \
+ CELLID:%d", rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+ return;
+ }
+
+ sapCb = RLC_GET_UDX_SAP(gCb);
+
+ RLC_ALLOC_SHRABL_BUF(sapCb->pst.region,
+ sapCb->pst.pool,
+ pStaPdu,
+ sizeof(RlcUdxStaPdu));
+
+#if (ERRCLASS & ERRCLS_ADD_RES)
+ /* Memory allocation failure can not be expected */
+ if(!pStaPdu)
+ {
+ return;
+ }
+#endif
+
+ if (rbCb->m.amUl.snLen == RLC_AM_CFG_12BIT_SN_LEN)
+ {
+ snLen = 12;
+ resrvdBitsAckSn = RLC_STA_PDU_R_BITS_ACKSN_12BITS;
+ resrvdBitsNackSn = RLC_STA_PDU_R_BITS_NACKSN_12BITS;
+ }
+ else if (rbCb->m.amUl.snLen == RLC_AM_CFG_18BIT_SN_LEN)
+ {
+ snLen = 18;
+ resrvdBitsAckSn = RLC_STA_PDU_R_BITS_ACKSN_18BITS;
+ resrvdBitsNackSn = RLC_STA_PDU_R_BITS_NACKSN_18BITS;
+ }
+ else
+ {
+ snLen = RLC_SN_LEN;
+ resrvdBitsAckSn = 0;
+ resrvdBitsAckSn = 0;
+ }
+
+ pStaPdu->nackCnt = 0;
+ /* For CPT */
+ hdrInfo.hdr = hdrInfo.hdr << RLC_CPT_LEN;
+
+ /* ACK Sn */
+ hdrInfo.len = snLen;
+ rlcAmmExtractElmnt(gCb, cntrlPdu, &hdrInfo);
+ pStaPdu->ackSn = hdrInfo.val;
+
+ //DU_LOG ("\nINFO --> RLC_UL : ++++++++++++ 5GNRLOG HNDL STATUS acksn %d : \n", pStaPdu->ackSn);
+ /* Check if NACK Exists */
+ hdrInfo.len = RLC_E1_LEN;
+ rlcAmmExtractElmnt(gCb, cntrlPdu, &hdrInfo);
+ e1 = (uint8_t)hdrInfo.val;
+ DU_LOG("\nDEBUG --> RLC_UL : rlcAmmUlHndlStatusPdu: ACK SN = %d UEID:%d CELLID:%d",
+ pStaPdu->ackSn, rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+
+ /* Extract the Reserved Bits after ACK SN field */
+ hdrInfo.len = resrvdBitsAckSn;
+ rlcAmmExtractElmnt(gCb, cntrlPdu, &hdrInfo);
+
+ /* If NACK exists in control PDU */
+ /* For ACKs and NACKs */
+ while (e1 && (pStaPdu->nackCnt < RLC_MAX_NACK_CNT))
+ {
+ hdrInfo.len = snLen;
+ rlcAmmExtractElmnt(gCb, cntrlPdu, &hdrInfo);
+ pStaPdu->nackInfo[pStaPdu->nackCnt].sn = hdrInfo.val;
+
+ hdrInfo.len = RLC_E1_LEN;
+ rlcAmmExtractElmnt(gCb, cntrlPdu, &hdrInfo);
+ e1 = (uint8_t)hdrInfo.val;
+
+ /* Extract e2 */
+ /* hdrInfo.len = RLC_E1_LEN; --> previusly stored value (for e1) is
+ already present*/
+ rlcAmmExtractElmnt(gCb, cntrlPdu, &hdrInfo);
+ /* e2 = (uint8_t) hdrInfo.val;*/
+
+ /* Store e2 value */
+ pStaPdu->nackInfo[pStaPdu->nackCnt].isSegment = (uint8_t) hdrInfo.val;
+
+ /* Extract e3 : 5GNR */
+ /* hdrInfo.len = RLC_E1_LEN; --> previusly stored value (for e1) is
+ already present*/
+ rlcAmmExtractElmnt(gCb, cntrlPdu, &hdrInfo);
+ e3 = (uint8_t) hdrInfo.val;
+
+ /* Extract Reserved Bits after NACK SN */
+ hdrInfo.len = resrvdBitsNackSn;
+ rlcAmmExtractElmnt(gCb, cntrlPdu, &hdrInfo);
+
+ /* Test for resegmentation */
+ if (pStaPdu->nackInfo[pStaPdu->nackCnt].isSegment)
+ {
+ hdrInfo.len = RLC_SO_LEN_5GNR; /* 5GNR : SO Len 16 Bits */
+ rlcAmmExtractElmnt(gCb, cntrlPdu, &hdrInfo);
+ pStaPdu->nackInfo[pStaPdu->nackCnt].soStart = hdrInfo.val;
+
+ rlcAmmExtractElmnt(gCb, cntrlPdu, &hdrInfo);
+ pStaPdu->nackInfo[pStaPdu->nackCnt].soEnd = hdrInfo.val;
+
+ DU_LOG("\nDEBUG --> RLC_UL : rlcAmmUlHndlStatusPdu: soStart and soEnd = %d %d"
+ "UEID:%d CELLID:%d", pStaPdu->nackInfo[pStaPdu->nackCnt].soStart,
+ pStaPdu->nackInfo[pStaPdu->nackCnt].soEnd, rbCb->rlcId.ueId,
+ rbCb->rlcId.cellId);
+ }
+ else
+ {
+ hdrInfo.len = 0;
+ pStaPdu->nackInfo[pStaPdu->nackCnt].soStart = 0;
+ pStaPdu->nackInfo[pStaPdu->nackCnt].soEnd = 0;
+
+ }
+ /* NACK RANGE Field is SET */
+ if (e3)
+ {
+ /* Extract NACK range field */
+ hdrInfo.len = RLC_NACK_RANGE_LEN;
+ rlcAmmExtractElmnt(gCb, cntrlPdu, &hdrInfo);
+ snRange = (uint8_t)hdrInfo.val;
+
+ pStaPdu->nackInfo[pStaPdu->nackCnt].nackRange = snRange;
+
+ }
+ pStaPdu->nackCnt++;
+ }
+
+ gRlcStats.amRlcStats.numULStaPduRcvd++;
+ gRlcStats.amRlcStats.numULNackInStaPduRcvd += pStaPdu->nackCnt;
+
+ /* In case we have reached the MAX NACK CNT, then we should modify the ACK_SN
+ to the last NACK SN + 1 and discard the original ACK_SN*/
+ if(pStaPdu->nackCnt == RLC_MAX_NACK_CNT)
+ {
+ pStaPdu->ackSn = (pStaPdu->nackInfo[RLC_MAX_NACK_CNT-1].sn + 1) & (rbCb->m.amUl.snModMask);
+ }
+
+
+ /* Parse & send Status PDU to RLC-DL */
+ rlcUlUdxStaUpdReq(&(sapCb->pst), sapCb->spId, &rbCb->rlcId, pStaPdu);
+
+ return;
+}
+
+/**
+ * @brief Private handler to release all stored segments
+ *
+ * @details
+ * Private handler invokded by rlcAmmUlPlacePduInRecBuf to release the
+ * stored segements in case a complete PDU is received later.
+ *
+ * @param[in] gCb RLC instance control block
+ * @param[in] recBuf Buffer that stores a received PDU or segments
+ *
+ * @return Void
+ *
+ */
+static void rlcAmmUlRlsAllSegs(RlcCb *gCb, RlcAmRecBuf *recBuf)
+{
+ RlcSeg *seg;
+
+ RLC_LLIST_FIRST_SEG(recBuf->segLst, seg);
+ while (seg != NULLP)
+ {
+ ODU_PUT_MSG_BUF(seg->seg);
+ cmLListDelFrm(&(recBuf->segLst),&(seg->lstEnt));
+ RLC_FREE(gCb,seg, sizeof(RlcSeg));
+ RLC_LLIST_FIRST_SEG(recBuf->segLst, seg);
+ }
+
+ return;
+}
+
+/**
+ * @brief Private handler to store the received segment
+ *
+ * @details
+ * Private handler invokded by rlcAmmUlPlacePduInRecBuf to add a received
+ * segment in reception buffer of a RBCB.
+ * - It is responsible for detecting duplicate segments
+ * - Adding it at appropriate position in the received buffer
+ * - Calling ExpByteSeg to set expSo field in the receiver buffer
+ *
+ * @param[in] gCb RLC instance control block
+ * @param[in] rbCb Radio Bearer Contro Block
+ * @param[in] amHdr AM Header received
+ * @param[in] pdu Buffer received other than the headers
+ * @param[in] pduSz size of the PDU buffer received
+ *
+ * @return Bool
+ * -#TRUE Successful insertion into the receiver buffer
+ * -#FALSE Possibly a duplicate segment
+ */
+static bool rlcAmmAddRcvdSeg(RlcCb *gCb, RlcUlRbCb *rbCb, RlcAmHdr *amHdr, Buffer *pdu, uint16_t pduSz)
+{
+ RlcAmRecBuf *recBuf = NULLP;
+ RlcSeg *seg;
+ RlcSeg *tseg;
+ uint16_t soEnd; /* Holds the SoEnd of received segment */
+ uint16_t expSo = 0; /* Expected SO */
+
+ soEnd = amHdr->so + pduSz - 1;
+ recBuf = rlcUtlGetRecBuf(RLC_AMUL.recBufLst, amHdr->sn);
+
+ if (NULLP == recBuf)
+ {
+ RLC_ALLOC(gCb,recBuf, sizeof(RlcAmRecBuf));
+#if (ERRCLASS & ERRCLS_ADD_RES)
+ if (recBuf == NULLP)
+ {
+ DU_LOG("\nERROR --> RLC_UL : rlcAmmAddRcvdSeg: Memory allocation failed UEID:%d CELLID:%d",
+ rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+
+ ODU_PUT_MSG_BUF(pdu);
+ return FALSE;
+ }
+#endif /* ERRCLASS & ERRCLS_RES */
+ rlcUtlStoreRecBuf(RLC_AMUL.recBufLst, recBuf, amHdr->sn);
+ }
+ else
+ {
+ if (recBuf->allRcvd == TRUE)
+ {
+ ODU_PUT_MSG_BUF(pdu);
+ return FALSE;
+ }
+ }
+
+ recBuf->isDelvUpperLayer = FALSE;
+ /* kw003.201 - Move past the segments that are different than the */
+ /* one received. */
+ RLC_LLIST_FIRST_SEG(recBuf->segLst, seg);
+ while ((seg != NULLP) && (seg->amHdr.so < amHdr->so))
+ {
+ expSo = seg->amHdr.so + seg->segSz;
+ RLC_LLIST_NEXT_SEG(recBuf->segLst, seg);
+ }
+
+ /* The received segment should start after the end of previous seg */
+ if (expSo > amHdr->so)
+ {
+ /* This is a duplicate segment */
+ gRlcStats.amRlcStats.numRlcAmCellDupPduRx++;
+ ODU_PUT_MSG_BUF(pdu);
+ return FALSE;
+ }
+
+ if ((seg) && (seg->amHdr.so <= soEnd))
+ {
+ /* This is a duplicate segment */
+ gRlcStats.amRlcStats.numRlcAmCellDupPduRx++;
+ ODU_PUT_MSG_BUF(pdu);
+ return FALSE;
+ }
+
+ /* If we have come this far, we have to add this segment to the */
+ /* reception buffer as we either have eliminated duplicates or */
+ /* have found none. */
+ RLC_ALLOC_WC(gCb,tseg, sizeof(RlcSeg));
+#if (ERRCLASS & ERRCLS_ADD_RES)
+ if (tseg == NULLP)
+ {
+ DU_LOG("\nERROR --> RLC_UL : rlcAmmAddRcvdSeg: Memory allocation failed UEID:%d CELLID:%d",
+ rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+ ODU_PUT_MSG_BUF(pdu);
+ return FALSE;
+ }
+#endif /* ERRCLASS & ERRCLS_RES */
+
+ tseg->seg = pdu;
+ tseg->segSz = pduSz;
+ RLC_MEM_CPY(&tseg->amHdr, amHdr, sizeof(RlcAmHdr));
+ recBuf->amHdr.si = amHdr->si;
+ recBuf->amHdr.sn = amHdr->sn;
+ tseg->soEnd = soEnd;
+ if (seg == NULLP)
+ {
+ cmLListAdd2Tail(&recBuf->segLst, &tseg->lstEnt);
+ }
+ else
+ {
+ recBuf->segLst.crnt = &seg->lstEnt;
+ cmLListInsCrnt(&recBuf->segLst, &tseg->lstEnt);
+ }
+ tseg->lstEnt.node = (PTR)tseg;
+ rlcAmmUpdExpByteSeg(gCb,&RLC_AMUL,tseg);
+
+ return TRUE;
+}
+
+/**
+ * @brief Private handler to place the PDU in the reception buffer
+ *
+ * @details
+ * This function checks if the received PDU's SN falls within the
+ * receiving window, after which it places the same in the reception
+ * buffer if its not a duplicate.
+ *
+ * @param[in] gCb RLC instance control block
+ * @param[in] pdu Received PDU
+ * @param[in] rbCb Uplink AM Radio Bearer
+ * @param[out] amUl AM UL Info
+ *
+ * @return Bool
+ * -# TRUE
+ * -# FALSE
+ *
+ */
+static bool rlcAmmUlPlacePduInRecBuf(RlcCb *gCb, Buffer *pdu, RlcUlRbCb *rbCb, RlcAmHdr *amHdr)
+{
+ RlcSn sn;
+ MsgLen pduSz;
+ RlcAmUl *amUl = &(rbCb->m.amUl);
+
+ sn = amHdr->sn;
+ SFndLenMsg(pdu, &pduSz);
+
+ gCb->genSts.bytesRecv += pduSz;
+ gRlcStats.amRlcStats.numRlcAmCellSduBytesRx += pduSz;
+ if (!RLC_AM_CHK_SN_WITHIN_RECV_WINDOW(sn, amUl))
+ {
+ gRlcStats.amRlcStats.numRlcAmCellDropOutWinRx++;
+ DU_LOG("\nERROR --> RLC_UL : rlcAmmUlPlacePduInRecBuf: SN %d outside the window"
+ "UEID:%d CELLID:%d", sn, rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+
+ gCb->genSts.unexpPdusRecv++;
+ ODU_PUT_MSG_BUF(pdu);
+ return FALSE;
+ }
+
+ if (amHdr->si == 0)
+ {
+ RlcAmRecBuf *recBuf = rlcUtlGetRecBuf(amUl->recBufLst, sn);
+
+ /* We received a complete PDU. Either we already have it, in which */
+ /* case we just ignore the new PDU and discard it. Otherwise, */
+ /* store the received PDU in the reception buffer */
+ if (NULLP == recBuf)
+ {
+ RLC_ALLOC(gCb, recBuf, sizeof(RlcAmRecBuf));
+#if (ERRCLASS & ERRCLS_ADD_RES)
+ if (recBuf == NULLP)
+ {
+ DU_LOG("\nERROR --> RLC_UL : rlcAmmUlPlacePduInRecBuf: Memory allocation failed \
+ UEID:%d CELLID:%d", rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+ ODU_PUT_MSG_BUF(pdu);
+ return FALSE;
+ }
+#endif /* ERRCLASS & ERRCLS_RES */
+ rlcUtlStoreRecBuf(RLC_AMUL.recBufLst, recBuf, sn);
+ }
+ else if (recBuf->allRcvd != TRUE)
+ {
+ rlcAmmUlRlsAllSegs(gCb,recBuf);
+ }
+ else
+ {
+ gRlcStats.amRlcStats.numRlcAmCellDupPduRx++;
+ gCb->genSts.unexpPdusRecv++;
+ ODU_PUT_MSG_BUF(pdu);
+ return FALSE;
+ }
+ recBuf->isDelvUpperLayer = FALSE;
+ recBuf->pdu = pdu;
+ recBuf->pduSz = pduSz;
+ recBuf->allRcvd = TRUE;
+ gRlcStats.amRlcStats.numRlcAmCellSduRx++;
+ RLC_MEM_CPY(&recBuf->amHdr, amHdr, sizeof(RlcAmHdr));
+ return TRUE;
+ }
+ else
+ {
+ /* We received a segment. We need to add that to the existing */
+ /* segments, if any. */
+ return (rlcAmmAddRcvdSeg(gCb,rbCb, amHdr, pdu, pduSz));
+ }
+}
+
+/**
+ * @brief Private handler to trigger status report
+ *
+ * @details
+ * Private handler invokded by rlcAmmProcessPdus to check if the
+ * status report need to be sent, and update the status trigger
+ * flag accordingly based on status prohibit timer.
+ *
+ * - Check if the received pdu's sn is less than rxHighestStatus, set the
+ * staTrg flag.
+ * - If staProhTmr is not running, calculate cntrlBo, else it'll be
+ * updated at the expiry of staProhTmr.
+ * - Expiry of reAsmblTmr also will set staTrg flag.
+ *
+ * @param[in] gCb RLC instance control block
+ * @param[in] rbCb Uplink RB control block
+ * @param[in] sn Sequence number of the pdu based on which to check if
+ * status needs to be triggered
+ * @param[in] discFlg Whether this pdu was discarded or not
+ *
+ * @return Void
+ *
+ */
+static void rlcAmmTriggerStatus(RlcCb *gCb, RlcUlRbCb *rbCb, RlcSn sn, bool discFlg)
+{
+ bool tmrRunning;
+ RlcSn tSn;
+ RlcSn tVrMr;
+ RlcSn trxHighestStatus;
+ RlcAmUl *amUl = &(rbCb->m.amUl);
+
+ MODAMR(amUl->vrMr, tVrMr, amUl->rxNext, amUl->snModMask);
+ MODAMR(amUl->rxHighestStatus, trxHighestStatus, amUl->rxNext, amUl->snModMask);
+ MODAMR(sn , tSn, amUl->rxNext, amUl->snModMask);
+
+ /* kw005.201 Product CR ccpu00117114 *
+ * The "=" in the 2nd condition is removed */
+ if ((discFlg) || (tSn < trxHighestStatus) || (tSn >= tVrMr))
+ {
+ DU_LOG("\nINFO --> RLC_UL : rlcAmmTriggerStatus: Set Status Trigger UEID:%d CELLID:%d",
+ rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+
+ amUl->staTrg = TRUE;
+ amUl->gatherStaPduInfo = FALSE;
+
+ /* Check if staProhTmr is running */
+ tmrRunning = rlcChkTmr(gCb,(PTR) rbCb, EVENT_RLC_AMUL_STA_PROH_TMR);
+
+ if (!tmrRunning)
+ {
+ amUl->gatherStaPduInfo = TRUE;
+ }
+ }
+
+ return;
+}
+
+/**
+ * @brief Private handler to reassemble from a segment or a PDU
+ *
+ * @details
+ * Private handler invokded by kwAmmReassembleSdus with either a
+ * PDU or a segment of a PDU. This is also called in the case of
+ * reestablishment and hence out of sequence joining is also to
+ * be supported
+ *
+ *
+ * @param[in] gCb RLC instance control block
+ * @param[in] rbCb Uplink RB control block
+ * @param[in] amHdr AM header received for this segment/PDU
+ * @param[in] pdu PDU to be reassembled
+ *
+ * @return Void
+ *
+ */
+static void rlcAmmProcPduOrSeg(RlcCb *gCb, RlcUlRbCb *rbCb, RlcAmHdr *amHdr, Buffer *pdu)
+{
+
+ if ((RLC_AMUL.expSn != amHdr->sn) || (RLC_AMUL.expSo != amHdr->so))
+ {
+ /* Release the existing partial SDU as we have PDUs or */
+ /* segments that are out of sequence */
+ rbCb->m.amUl.isOutOfSeq = TRUE;
+ ODU_PUT_MSG_BUF(RLC_AMUL.partialSdu);
+ }
+
+ if (amHdr->si == RLC_SI_FIRST_SEG)
+ {/* first Segment of the SDU */
+ if (RLC_AMUL.partialSdu != NULLP)
+ { /* Some old SDU may be present */
+ ODU_PUT_MSG_BUF(RLC_AMUL.partialSdu);
+ }
+ RLC_AMUL.partialSdu = pdu;
+ pdu = NULLP;
+ }
+ else if(amHdr->si == RLC_SI_MID_SEG)
+ {/* Middle or last segment of the SUD */
+ ODU_CAT_MSG(RLC_AMUL.partialSdu,pdu, M1M2);
+ ODU_PUT_MSG_BUF(pdu);
+ pdu = NULLP;
+ }
+ else if (amHdr->si == RLC_SI_LAST_SEG)
+ {
+ ODU_CAT_MSG(pdu,RLC_AMUL.partialSdu,M2M1);
+ ODU_PUT_MSG_BUF(RLC_AMUL.partialSdu);
+ }
+
+ if (pdu != NULLP)
+ {
+ RLC_AMUL.partialSdu = NULLP;
+ rlcUtlSendUlDataToDu(gCb,rbCb, pdu);
+ }
+
+ return;
+}
+
+/**
+ *
+ * @brief Private handler to reassemble SDUs
+ *
+ * @details
+ * Private handler invokded by rlcAmmProcessPdus with the PDU
+ * from the reception buffer in sequence to reassemble SDUs and
+ * send it to PDCP.
+ *
+ * - With the stored header info, FI and LSF segment / concatenate
+ * PDUs or byte segments of PDUs to get the associated SDU.
+ *
+ * @param[in] rbCb RB control block
+ * @param[in] pdu PDU to be reassembled
+ *
+ * @return S16
+ * -# ROK
+ * -# RFAILED
+ *
+ */
+static uint8_t rlcAmmUlReassembleSdus(RlcCb *gCb, RlcUlRbCb *rbCb, RlcAmRecBuf *recBuf)
+{
+ RlcSeg *seg;
+
+ //if (recBuf->amHdr.rf == 0)
+ if (recBuf->amHdr.si == 0)
+ {
+ /* This is a PDU */
+ rlcAmmProcPduOrSeg(gCb,rbCb, &recBuf->amHdr, recBuf->pdu);
+ /* Assign NULLP to recBuf->pdu as this PDU is sent to PDCP */
+ recBuf->pdu = NULLP;
+ RLC_AMUL.expSn = (recBuf->amHdr.sn + 1) & (RLC_AMUL.snModMask); /* MOD 1024 */
+ RLC_AMUL.expSo = 0;
+ }
+ else
+ {
+ /* This is a set of segments */
+ RLC_LLIST_FIRST_SEG(recBuf->segLst, seg);
+ RLC_AMUL.expSn = recBuf->amHdr.sn;
+ RLC_AMUL.expSo = 0;
+ while(seg)
+ {
+ rlcAmmProcPduOrSeg(gCb,rbCb, &seg->amHdr, seg->seg);
+ RLC_AMUL.expSo = seg->soEnd + 1;
+
+ cmLListDelFrm(&(recBuf->segLst),&(seg->lstEnt));
+ RLC_FREE(gCb, seg, sizeof(RlcSeg));
+
+ RLC_LLIST_FIRST_SEG(recBuf->segLst, seg);
+ }
+ RLC_AMUL.expSn = (recBuf->amHdr.sn + 1) & (RLC_AMUL.snModMask); /* MOD 1024 */
+ RLC_AMUL.expSo = 0;
+ }
+
+ return ROK;
+}
+
+/**
+ * @brief Handler to process the re-establishment request received from UIM
+ *
+ * @param[in] gCb RLC instance control block
+ * @param[in] rlcId RLC identifier
+ * @param[in] sendReEst Whether to send back restablishment complete or not
+ * @param[in] rbCb Uplink RB control block
+ *
+ * @return Void
+ *
+ */
+Void rlcAmmUlReEstablish(RlcCb *gCb,CmLteRlcId rlcId,Bool sendReEst,RlcUlRbCb *rbCb)
+{
+ RlcSn sn;
+ RlcSn mSn;
+ RlcSn mVrMr;
+
+#ifndef KW_PDCP
+ RlcKwuSapCb *rlcKwuSap;
+#endif
+ RlcAmRecBuf *recBuf = NULLP;
+
+ sn = RLC_AMUL.rxNext;
+
+ MODAMR(RLC_AMUL.vrMr, mVrMr, RLC_AMUL.rxNext, RLC_AMUL.snModMask);
+ MODAMR(sn, mSn, RLC_AMUL.rxNext, RLC_AMUL.snModMask);
+
+ /* Reassemble SDUs from PDUs with SN less than upper edge of the window */
+ while (mSn < mVrMr)
+ {
+ recBuf = rlcUtlGetRecBuf(RLC_AMUL.recBufLst, sn);
+ if (NULLP != recBuf)
+ {
+ if (recBuf->allRcvd == TRUE)
+ {
+ rlcAmmUlReassembleSdus(gCb,rbCb, recBuf);
+ }
+ else
+ {
+ /* Remove PDU and segments */
+ if(recBuf->pdu)
+ {
+ ODU_PUT_MSG_BUF(recBuf->pdu);
+ }
+ /* Release all the segments*/
+ rlcAmmUlRlsAllSegs(gCb,recBuf);
+ }
+ rlcUtlDelRecBuf(RLC_AMUL.recBufLst, recBuf, gCb);
+ }
+ sn = (sn + 1) & (RLC_AMUL.snModMask); /* MOD 1024 */
+ MODAMR(sn, mSn, RLC_AMUL.rxNext, RLC_AMUL.snModMask);
+ }
+ /* Discard remaining PDUs and bytesegments in recBuf */
+
+ /* Stop all timers and reset variables */
+ if(TRUE == rlcChkTmr(gCb,(PTR)rbCb,EVENT_RLC_AMUL_REASSEMBLE_TMR))
+ {
+ rlcStopTmr(gCb,(PTR)rbCb, EVENT_RLC_AMUL_REASSEMBLE_TMR);
+ }
+ if(TRUE == rlcChkTmr(gCb,(PTR)rbCb,EVENT_RLC_AMUL_STA_PROH_TMR))
+ {
+ rlcStopTmr(gCb,(PTR)rbCb, EVENT_RLC_AMUL_STA_PROH_TMR);
+ }
+
+ RLC_AMUL.rxNext = 0;
+ RLC_AMUL.rxNextHighestRcvd = 0;
+ RLC_AMUL.rxNextStatusTrig = 0;
+ rbCb->m.amUl.vrMr = (rbCb->m.amUl.rxNext + RLC_AM_GET_WIN_SZ(rbCb->m.amUl.snLen)) & (rbCb->m.amUl.snModMask);
+ RLC_AMUL.rxHighestStatus = 0;
+ RLC_AMUL.staTrg = FALSE;
+ RLC_AMUL.gatherStaPduInfo = FALSE;
+ RLC_AMUL.expSn = 0;
+ RLC_AMUL.expSo = 0;
+ if (RLC_AMUL.partialSdu != NULLP)
+ {
+ ODU_PUT_MSG_BUF(RLC_AMUL.partialSdu);
+ }
+ rlcKwuSap = gCb->u.ulCb->rlcKwuUlSap + RLC_UI_PDCP;
+
+ if(sendReEst)
+ {
+ RlcUiKwuReEstCmpInd(&rlcKwuSap->pst, rlcKwuSap->suId, rlcId);
+ rbCb->m.amUl.isOutOfSeq = FALSE;
+ }
+
+ return;
+}
+
+/**
+ * @brief Handler for reorder timer expiry
+ *
+ * @details
+ * This function is used to handle events upon expiry of reorder timer
+ *
+ * @param[in] gCb RLC instance control block
+ * @param[in] rbCb RB control block
+ *
+ * @return Void
+ *
+ */
+
+Void rlcAmmReAsmblTmrExp(RlcCb *gCb,RlcUlRbCb *rbCb)
+{
+ RlcAmUl *amUl = &(rbCb->m.amUl);
+ RlcSn sn;
+ RlcSn mSn;
+ RlcSn mVrMr;
+ RlcSn mrxHighestStatus;
+ RlcSn mrxNextHighestRcvd;
+ Bool tmrRunning = FALSE;
+ RlcAmRecBuf *recBuf = NULLP;
+
+ /* Update rxHighestStatus */
+ sn = amUl->rxNextStatusTrig;
+
+ MODAMR(sn, mSn, amUl->rxNext, amUl->snModMask);
+ MODAMR(amUl->vrMr, mVrMr, amUl->rxNext, amUl->snModMask);
+ recBuf = rlcUtlGetRecBuf(RLC_AMUL.recBufLst, sn);
+
+ while (mSn < mVrMr)
+ {
+ if ((recBuf == NULLP) ||
+ ((recBuf != NULLP) && (!recBuf->allRcvd)) )
+ {
+ amUl->rxHighestStatus = sn;
+ amUl->staTrg = TRUE;
+ amUl->gatherStaPduInfo = FALSE;
+
+ /* Check if staProhTmr is running */
+ tmrRunning = rlcChkTmr(gCb,(PTR) rbCb, EVENT_RLC_AMUL_STA_PROH_TMR);
+
+ if (!tmrRunning)
+ {
+ gRlcStats.amRlcStats.numULReAsmblTimerExpires++;
+ amUl->gatherStaPduInfo = TRUE;
+ rlcAmmUlAssembleCntrlInfo(gCb, rbCb);
+ }
+
+ break;
+ }
+ sn = (sn + 1) & (amUl->snModMask);
+ MODAMR(sn, mSn, amUl->rxNext, amUl->snModMask);
+ }
+
+ /* Update rxNextStatusTrig */
+ MODAMR(amUl->rxNextHighestRcvd, mrxNextHighestRcvd, amUl->rxNext, amUl->snModMask);
+ MODAMR(amUl->rxHighestStatus, mrxHighestStatus, amUl->rxNext, amUl->snModMask);
+ /* spec 38.322v15.3.0 - 5.2.3.2.4 */
+ if((mrxNextHighestRcvd > mrxHighestStatus) || ((mrxNextHighestRcvd == mrxHighestStatus) &&
+ ((recBuf) && !(recBuf->noMissingSeg))))
+ {
+ rlcStartTmr(gCb,(PTR)rbCb, EVENT_RLC_AMUL_REASSEMBLE_TMR);
+ amUl->rxNextStatusTrig = amUl->rxNextHighestRcvd;
+ }
+
+ return;
+} /* rlcAmmReAsmblTmrExp */
+
+/**
+ * @brief Handler for status prohibit timer expiry
+ *
+ * @details
+ * This function is used to handle events upon expiry of status prohibit
+ * timer
+ *
+ * @param[in] gCb RLC instance control block
+ * @param[in] rbCb RB control block
+ *
+ * @return Void
+ *
+ */
+
+Void rlcAmmStaProTmrExp(RlcCb *gCb,RlcUlRbCb *rbCb)
+{
+ RlcAmUl *amUl = &(rbCb->m.amUl);
+
+ amUl->gatherStaPduInfo = FALSE;
+
+ if (amUl->staTrg == TRUE)
+ {
+ amUl->gatherStaPduInfo = TRUE;
+ /* kw002.201 : Sending StaRsp after StaProhibit tmr expiry */
+ rlcAmmUlAssembleCntrlInfo(gCb,rbCb);
+ }
+
+ return;
+} /* rlcAmmStaProTmrExp */
+
+/**
+ * @brief Handler to extract an element of AM Header
+ *
+ * @details
+ * This function is used to extract an element of AM header.
+ *
+ * @param[in] pdu The pdu to be decoded
+ * @param[in,out] hdrInfo Container to hold the decoded info
+ *
+ * @return Void
+ *
+ */
+
+static void rlcAmmExtractElmnt(RlcCb *gCb, Buffer *pdu, RlcExtHdr *hdrInfo)
+{
+ uint8_t hdr;
+ uint8_t pLen = hdrInfo->pLen;
+ uint8_t len = (uint8_t)hdrInfo->len;
+ uint32_t val;
+ uint8_t tHdr;
+ uint8_t fLen;
+ uint8_t rLen;
+ /* uint8_t rLen1 = 0; */
+ uint16_t tVal;
+
+ hdr = hdrInfo->hdr;
+
+ if (pLen == 0)
+ {
+ ODU_REM_PRE_MSG(&hdr, pdu);
+ pLen = 8;
+ }
+ tHdr = hdr;
+ if (len <= 8)
+ {
+ val = tHdr >> (RLC_BYTE_LEN - (len));
+ hdr = hdr << len;
+ pLen -= len;
+ }
+ else /*if (len > 8) */
+ {
+ fLen = pLen;
+ val = tHdr;
+ val = val >> (RLC_BYTE_LEN - fLen);
+ val = val << (len - fLen);
+ rLen = len - fLen;
+ ODU_REM_PRE_MSG(&hdr, pdu);
+ tHdr = hdr;
+ if (rLen <= 8)
+ {
+ hdr = hdr >> (RLC_BYTE_LEN - rLen);
+ val = val | hdr;
+ hdr = tHdr << rLen;
+ pLen = (RLC_BYTE_LEN - rLen);
+ }
+ else
+ {
+ rLen = rLen - RLC_BYTE_LEN;
+ tVal = hdr;
+ tVal = tVal << rLen;
+ val = val | tVal;
+
+ ODU_REM_PRE_MSG(&hdr, pdu);
+ tHdr = hdr;
+ hdr = hdr >> (RLC_BYTE_LEN - rLen);
+ val = val | hdr;
+ hdr = tHdr << rLen;
+ pLen = (RLC_BYTE_LEN - rLen);
+ }
+ }
+
+ hdrInfo->pLen = pLen;
+ hdrInfo->hdr = hdr;
+ hdrInfo->val = val;
+
+ return;
+}
+
+/**
+ * @brief Handler to updated expected byte seg
+ *
+ * @details
+ * This function is used to update expected byte segment. The next segment
+ * expected is indicated by the SO of the segment which is expected. Intially
+ * the segment with SO 0 is expected and then in order. When all the segments
+ * are received (which would happen when an expected SO is encountered
+ * with LSF set) the allRcvd flag is set to TRUE
+ *
+ * @param[in] gCb RLC instance control block
+ * @param[in] amUl AM Uplink Control Block
+ * @param[in] seg Newly received segment
+ *
+ * @return Void
+ *
+ */
+
+static void rlcAmmUpdExpByteSeg(RlcCb *gCb, RlcAmUl *amUl, RlcSeg *seg)
+{
+ uint16_t newExpSo; /* The new expected SO */
+ RlcSn sn = seg->amHdr.sn;
+ bool lstRcvd=FALSE;
+ RlcAmRecBuf *recBuf = NULLP;
+
+ recBuf = rlcUtlGetRecBuf(amUl->recBufLst, sn);
+ if ((recBuf == NULLP) || (recBuf && (seg->amHdr.so != recBuf->expSo)))
+ {
+ return;
+ }
+ recBuf->noMissingSeg = FALSE;
+ newExpSo = seg->soEnd + 1;
+ recBuf->expSo = newExpSo;
+ if(seg->amHdr.si == RLC_SI_LAST_SEG)
+ {
+ lstRcvd = TRUE;
+ }
+ /* kw003.201 - This should update seg with the one after newSeg */
+ RLC_LLIST_NEXT_SEG(recBuf->segLst, seg);
+ while(seg)
+ {
+ /* keep going ahead as long as the expectedSo match with the header so
+ else store the expSo for later checking again */
+ if(seg->amHdr.si == RLC_SI_LAST_SEG)
+ {
+ lstRcvd = TRUE;
+ }
+ if (seg->amHdr.so == newExpSo)
+ {
+ newExpSo = seg->soEnd + 1;
+ recBuf->expSo = newExpSo;
+ RLC_LLIST_NEXT_SEG(recBuf->segLst, seg);
+ }
+ else
+ {
+ recBuf->expSo = newExpSo;
+ return;
+ }
+ }
+ if (lstRcvd == TRUE)
+ {
+ recBuf->allRcvd = TRUE;
+ gRlcStats.amRlcStats.numRlcAmCellSduRx++;
+ }
+ recBuf->noMissingSeg = TRUE;
+ return;
+}
+
+/**
+ * @brief
+ * Function to release/free the Acknowledged Mode Module RbCb buffers
+ *
+ * @details
+ * This primitive Frees the AM RbCb transmission Buffer, retransmission
+ * Buffer and reciption Buffers
+ *
+ * @param [in] gCb - RLC instance Control Block
+ * @param [in] rbCb - RB Control Block
+ *
+ * @return void
+ */
+Void rlcAmmFreeUlRbCb(RlcCb *gCb,RlcUlRbCb *rbCb)
+{
+ RlcSn curSn = 0; /* Sequence number of PDU */
+ RlcSn windSz; /* PDU window size */
+ RlcAmRecBuf *recBuf = NULLP;
+
+ windSz = (RLC_AM_GET_WIN_SZ(rbCb->m.amUl.snLen)) << 1;
+
+ if(TRUE == rlcChkTmr(gCb,(PTR)rbCb,EVENT_RLC_AMUL_REASSEMBLE_TMR))
+ {
+ rlcStopTmr(gCb,(PTR)rbCb, EVENT_RLC_AMUL_REASSEMBLE_TMR);
+ }
+ if(TRUE == rlcChkTmr(gCb,(PTR)rbCb,EVENT_RLC_AMUL_STA_PROH_TMR))
+ {
+ rlcStopTmr(gCb,(PTR)rbCb, EVENT_RLC_AMUL_STA_PROH_TMR);
+ }
+
+
+ /* on the first loop winSz is always greater than zero
+ while( ( curSn < windSz ) hence changing to do while */
+ do
+ {
+ recBuf = rlcUtlGetRecBuf(rbCb->m.amUl.recBufLst, curSn);
+ if ( recBuf != NULLP )
+ {
+ if (recBuf->pdu != NULLP)
+ {
+ ODU_PUT_MSG_BUF(recBuf->pdu);
+ }
+ /* Release all the segments */
+ rlcAmmUlRlsAllSegs(gCb,recBuf);
+ rlcUtlDelRecBuf(rbCb->m.amUl.recBufLst, recBuf, gCb);
+ }
+ curSn++;
+ }while ( curSn < windSz );
+
+#ifndef LTE_TDD
+ RLC_FREE(gCb,rbCb->m.amUl.recBufLst, (RLC_RCV_BUF_BIN_SIZE * sizeof(CmLListCp)));
+ rbCb->m.amUl.recBufLst = NULLP;
+#endif
+
+ if(rbCb->m.amUl.partialSdu != NULLP)
+ {
+ ODU_PUT_MSG_BUF(rbCb->m.amUl.partialSdu);
+ }
+ return;
+} /* rlcAmmFreeUlRbCb */
+
+
+/*@}*/
+
+\f
+/********************************************************************30**
+
+ End of file
+**********************************************************************/
Code Review / o-du / l2.git / blobdiff