Buffer *pdu,
RlcUmHdr *umHdr));
-static void rlcUmmReAssembleSdus ARGS ((RlcCb *gCb,
- RlcUlRbCb *rbCb,
- RlcUmRecBuf *umRecBuf));
+uint8_t rlcUmmReAssembleSdus ARGS ((RlcCb *gCb,
+ RlcUlRbCb *rbCb,
+ RlcUmRecBuf *umRecBuf));
+
+#ifdef NR_RLC_UL
+bool rlcUmmAddRcvdSeg ARGS ((RlcCb *gCb,
+ RlcUlRbCb *rbCb,
+ RlcUmHdr *umHdr,
+ Buffer *pdu,
+ uint16_t pduSz));
+
+void rlcUmmRelAllSegs(RlcCb *gCb, RlcUmRecBuf *recBuf);
+
+#endif
#ifndef TENB_ACC
#ifndef LTE_PAL_ENB
return (RLC_UM_GET_VALUE(sn, *umUl) < RLC_UM_GET_VALUE(umUl->vrUh, *umUl));
}
+#ifdef NR_RLC_UL
+
+/**
+ * @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] umUl AM Uplink Control Block
+ * @param[in] seg Newly received segment
+ *
+ * @return void
+ *
+ */
+
+void rlcUmmUpdExpByteSeg(RlcCb *gCb, RlcUmUl *umUl, RlcUmSeg *seg)
+{
+ uint16_t newExpSo; /* The new expected SO */
+ RlcSn sn = seg->umHdr.sn;
+ bool lstRcvd=FALSE;
+ RlcUmRecBuf *recBuf = NULLP;
+
+ recBuf = rlcUtlGetUmRecBuf(umUl->recBufLst, sn);
+ if ((recBuf == NULLP) || (recBuf && (seg->umHdr.so != recBuf->expSo)))
+ {
+ return;
+ }
+ recBuf->noMissingSeg = FALSE;
+ newExpSo = seg->soEnd + 1;
+ recBuf->expSo = newExpSo;
+ if(seg->umHdr.si == RLC_SI_LAST_SEG)
+ {
+ lstRcvd = TRUE;
+ }
+ RLC_UMM_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->umHdr.si == RLC_SI_LAST_SEG)
+ {
+ lstRcvd = TRUE;
+ }
+ if (seg->umHdr.so == newExpSo)
+ {
+ newExpSo = seg->soEnd + 1;
+ recBuf->expSo = newExpSo;
+ RLC_UMM_LLIST_NEXT_SEG(recBuf->segLst, seg);
+ }
+ else
+ {
+ recBuf->expSo = newExpSo;
+ return;
+ }
+ }
+ if (lstRcvd == TRUE)
+ {
+ recBuf->allSegRcvd = TRUE;
+ }
+ recBuf->noMissingSeg = TRUE;
+
+ return;
+}
+/**
+ * @brief Private handler to store the received segment
+ *
+ * @details
+ * Private handler invokded by rlcUmmUlPlacePduInRecBuf 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] umHdr UM 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
+ */
+
+bool rlcUmmAddRcvdSeg(RlcCb *gCb, RlcUlRbCb *rbCb, RlcUmHdr *umHdr, Buffer *pdu, uint16_t pduSz)
+{
+ RlcUmRecBuf *recBuf = NULLP;
+ RlcUmSeg *seg;
+ RlcUmSeg *tseg;
+ uint16_t soEnd; /* Holds the SoEnd of received segment */
+ uint16_t expSo = 0; /* Expected SO */
+
+ soEnd = umHdr->so + pduSz - 1;
+ recBuf = rlcUtlGetUmRecBuf(RLC_UMUL.recBufLst, umHdr->sn);
+
+ if (NULLP == recBuf)
+ {
+ RLC_ALLOC(gCb,recBuf, sizeof(RlcUmRecBuf));
+ if (recBuf == NULLP)
+ {
+ DU_LOG("\nERROR --> RLC_UL : Failed to allocate memory to recv buf for UEID:%d CELLID:%d in rlcUmmAddRcvdSeg()",
+ rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+
+ ODU_PUT_MSG_BUF(pdu);
+ return FALSE;
+ }
+ rlcUtlStoreUmRecBuf(RLC_UMUL.recBufLst, recBuf, umHdr->sn);
+ }
+ else
+ {
+ if (recBuf->allSegRcvd == TRUE)
+ {
+ ODU_PUT_MSG_BUF(pdu);
+ return FALSE;
+ }
+ }
+
+ RLC_UMM_LLIST_FIRST_SEG(recBuf->segLst, seg);
+ while ((seg != NULLP) && (seg->umHdr.so < umHdr->so))
+ {
+ expSo = seg->umHdr.so + seg->segSz;
+ RLC_UMM_LLIST_NEXT_SEG(recBuf->segLst, seg);
+ }
+
+ if (expSo > umHdr->so)
+ {
+ DU_LOG("\nDEBUG --> RLC_UL : Received duplicate segment in rlcUmmAddRcvdSeg()");
+ /* This is a duplicate segment */
+ ODU_PUT_MSG_BUF(pdu);
+ return FALSE;
+ }
+
+ if ((seg) && (seg->umHdr.so <= soEnd))
+ {
+ DU_LOG("\nDEBUG --> RLC_UL : Received duplicate segment in rlcUmmAddRcvdSeg()");
+ /* This is a duplicate segment */
+ 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(RlcUmSeg));
+ if (tseg == NULLP)
+ {
+ DU_LOG("\nERROR --> RLC_UL : Failed to allocate memory to segment for UEID:%d CELLID:%d in rlcUmmAddRcvdSeg()",
+ rbCb->rlcId.ueId, rbCb->rlcId.cellId);
+ ODU_PUT_MSG_BUF(pdu);
+ return FALSE;
+ }
+
+ tseg->seg = pdu;
+ tseg->segSz = pduSz;
+ RLC_MEM_CPY(&tseg->umHdr, umHdr, sizeof(RlcUmHdr));
+ RLC_MEM_CPY(&recBuf->umHdr, umHdr, sizeof(RlcUmHdr));
+ recBuf->sn = umHdr->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;
+ rlcUmmUpdExpByteSeg(gCb, &RLC_UMUL, tseg);
+ return TRUE;
+}
+
+/**
+ * @brief Private handler to release all stored segments
+ *
+ * @details
+ * Private handler invokded by rlcUmmRelAllSegs 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
+ *
+ */
+void rlcUmmRelAllSegs(RlcCb *gCb, RlcUmRecBuf *recBuf)
+{
+ RlcUmSeg *seg;
+
+ RLC_UMM_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(RlcUmSeg));
+ RLC_UMM_LLIST_FIRST_SEG(recBuf->segLst, seg);
+ }
+
+ return;
+}
+
+/**
+ * @brief Private handler to reassemble from a segment or a PDU
+ *
+ * @details
+ * Private handler invokded by rlcUmmReAssembleSdus 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] umHdr UM header received for this segment/PDU
+ * @param[in] pdu PDU to be reassembled
+ *
+ * @return ROK/RFILED
+ *
+ */
+
+uint8_t rlcUmmProcSeg(RlcCb *gCb, RlcUlRbCb *rbCb, RlcUmHdr *umHdr, Buffer *pdu)
+{
+
+ if ((RLC_UMUL.expSn != umHdr->sn) || (RLC_UMUL.expSo != umHdr->so))
+ {
+ /* Release the existing SDU as we have PDUs or */
+ /* segments that are out of sequence */
+ DU_LOG("\nDEBUG --> RLC_UL : Received Segments are out of sequence in rlcUmmProcSeg()");
+ ODU_PUT_MSG_BUF(RLC_UMUL.assembleSdu);
+ return RFAILED;
+ }
+
+ if (umHdr->si == RLC_SI_FIRST_SEG)
+ {/* first Segment of the SDU */
+ if (RLC_UMUL.assembleSdu != NULLP)
+ { /* Some old SDU may be present */
+ ODU_PUT_MSG_BUF(RLC_UMUL.assembleSdu);
+ }
+ RLC_UMUL.assembleSdu = pdu;
+ pdu = NULLP;
+ }
+ else if(umHdr->si == RLC_SI_MID_SEG)
+ {/* Middle Segment of the SDU */
+ ODU_CAT_MSG(RLC_UMUL.assembleSdu,pdu, M1M2);
+ ODU_PUT_MSG_BUF(pdu);
+ pdu = NULLP;
+ }
+ else if(umHdr->si == RLC_SI_LAST_SEG)
+ {
+ ODU_CAT_MSG(pdu, RLC_UMUL.assembleSdu, M2M1);
+ ODU_PUT_MSG_BUF(RLC_UMUL.assembleSdu);
+ }
+
+ if (pdu != NULLP)
+ {
+ RLC_UMUL.assembleSdu = NULLP;
+ rlcUtlSendUlDataToDu(gCb,rbCb, pdu);
+ }
+
+ return ROK;
+}
+/**
+ *
+ * @brief Private handler to reassemble SDUs
+ *
+ * @details
+ * Private handler invokded by rlcUmmProcessPdus 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 uint8_t
+ * -# ROK
+ * -# RFAILED
+ *
+ */
+uint8_t rlcUmmReAssembleSdus(RlcCb *gCb, RlcUlRbCb *rbCb, RlcUmRecBuf *recBuf)
+{
+ RlcUmSeg *seg;
+
+ /* This is a set of segments */
+ RLC_UMM_LLIST_FIRST_SEG(recBuf->segLst, seg);
+ RLC_UMUL.expSn = recBuf->sn;
+ RLC_UMUL.expSo = 0;
+ while(seg)
+ {
+ if(rlcUmmProcSeg(gCb, rbCb, &seg->umHdr, seg->seg) == RFAILED)
+ {
+ rlcUmmRelAllSegs(gCb, recBuf);
+ break;
+ }
+ RLC_UMUL.expSo = seg->soEnd + 1;
+ cmLListDelFrm(&(recBuf->segLst),&(seg->lstEnt));
+ RLC_FREE(gCb, seg, sizeof(RlcSeg));
+ RLC_UMM_LLIST_FIRST_SEG(recBuf->segLst, seg);
+ }
+ RLC_UMUL.expSn = (recBuf->umHdr.sn + 1) & (RLC_UMUL.modBitMask);
+ RLC_UMUL.expSo = 0;
+ return ROK;
+}
+
+#endif
+
/**
* @brief Handler to process the Data Indication from the lower layer
* and send the PDUs to re-assembly unit.
{
uint32_t rlculdrop;
rlculdrop++;
- RLC_FREE_BUF(pdu);
- RLC_FREE_WC(gCb, tmpRecBuf, sizeof(RlcUmRecBuf));
+ ODU_PUT_MSG_BUF(pdu);
+ RLC_FREE(gCb, tmpRecBuf, sizeof(RlcUmRecBuf));
/*Fix for CR ccpu00144030: If threshhold is hit then also count
*should be incrmented */
count++;
/* Header extraction is a problem.
* log an error and free the allocated memory */
/* ccpu00136940 */
- RLC_FREE_WC(gCb, tmpRecBuf, sizeof(RlcUmRecBuf));
+ RLC_FREE(gCb, tmpRecBuf, sizeof(RlcUmRecBuf));
ODU_PUT_MSG_BUF(pdu);
count++;
/* kw005.201 ccpu00117318, updating the statistics */
gCb->genSts.errorPdusRecv++;
continue;
}
+#ifdef NR_RLC_UL
+
+ /*TODO 1.Extract Hdr */
+ /* 2.Add Seg into Reception Buffer */
+ /* 3.If All Seg Recvd in Reception buffer list */
+ /* 4.Step 3 is true call Assemble Sdus */
+#endif
curSn = tmpRecBuf->umHdr.sn;
/* Check if the PDU should be discarded or not */
DU_LOG("\nRLC : rlcUmmProcessPdus: Received a duplicate pdu with sn %d \
UEID:%d CELLID:%d", curSn, rbCb->rlcId.ueId, rbCb->rlcId.cellId);
- RLC_FREE_BUF(pdu);
- RLC_FREE_WC(gCb, tmpRecBuf, sizeof(RlcUmRecBuf));
+ ODU_PUT_MSG_BUF(pdu);
+ RLC_FREE(gCb, tmpRecBuf, sizeof(RlcUmRecBuf));
count++;
/* kw005.201 ccpu00117318, updating the statistics */
gCb->genSts.unexpPdusRecv++;
{
if (recBuf[sn])
{
+#ifdef NR_RLC_UL
rlcUmmReAssembleSdus(gCb,rbCb,recBuf[sn]);
- RLC_FREE_WC(gCb,recBuf[sn],sizeof(RlcUmRecBuf));
+#endif
+ RLC_FREE(gCb,recBuf[sn],sizeof(RlcUmRecBuf));
recBuf[sn] = NULLP;
}
sn = (sn + 1) & RLC_UMUL.modBitMask;
tVrUr = RLC_UM_GET_VALUE(*vrUr,RLC_UMUL);
while (recBuf[sn] && tSn < tVrUr)
{
+#ifdef NR_RLC_UL
rlcUmmReAssembleSdus(gCb,rbCb,recBuf[sn]);
- RLC_FREE_WC(gCb,recBuf[sn],sizeof(RlcUmRecBuf));
+#endif
+ RLC_FREE(gCb,recBuf[sn],sizeof(RlcUmRecBuf));
recBuf[sn] = NULLP;
sn = (sn + 1) & RLC_UMUL.modBitMask;
tSn = RLC_UM_GET_VALUE(sn, RLC_UMUL);
return;
}
-/**
- * @brief Handler to reassemble the SDUs and send them to the upper layer.
- *
- * @details
- * This function processes the received in-sequence PDU and
- * re-assembles the SDUs and sends them to the upper layer.
- *
- * @param[in] gCb RLC Instance control block
- * @param[in] rbCb RB control block
- * @param[in] umRecBuf Reception Buffer to be Re-Assembled
- *
- * @return Void
-*/
-static void rlcUmmReAssembleSdus(RlcCb *gCb, RlcUlRbCb *rbCb, RlcUmRecBuf *umRecBuf)
-{
- uint32_t liCount; /* LI count */
- uint32_t count; /* Loop counter */
- uint8_t fi; /* Framing Info */
- uint16_t sn; /* Sequence Number of current PDU */
- MsgLen len; /* PDU Length */
- Buffer *sdu; /* SDU to be sent to upper layer */
- Buffer *remPdu; /* Remaining PDU */
- Buffer **partialSdu; /* Partial SDU */
-
- liCount = umRecBuf->umHdr.numLi;
- fi = umRecBuf->umHdr.fi;
- sn = umRecBuf->umHdr.sn;
-
- for (count = 0; (count <= liCount);count++)
- {
- if (count < liCount )
- len = umRecBuf->umHdr.li[count];
- else
- {
- if (!(umRecBuf->pdu))
- {
- return;
- }
- ODU_GET_MSG_LEN(umRecBuf->pdu,&len);
- }
-
- /* get the sdu out of the pdu */
- ODU_SEGMENT_MSG(umRecBuf->pdu,len,&remPdu);
- sdu = umRecBuf->pdu;
- umRecBuf->pdu = remPdu;
-
- partialSdu = &(rbCb->m.umUl.partialSdu);
- /* While re-assembling the SDUs, consider the first LI and perform
- * the following steps.
- -# If the first bit of FI(Framing Info of 2 bits) is set =>
- -# The current Data field in the PDU is a segment.
- So form a SDU only if the
- rbCb->m.um.umUl.partialSdu exists and the SNs are
- in-sequence.
- -# If there are no LIs and the second bit of LI is 1
- then a partial SDU is formed which would not be sent
- to the upper layer.
- -# else
- -# If rbCb->partialSdu is not NULL then flush it off.
- -# If LI count > 0 or LI count is 0 and second bit
- of FI is not 1
- The SDU is complete.So send it to upper layer.
- -# else
- The SDU is partial and is placed
- in rbCb->m.um.umUl.partialSdu;
- */
-
- if (0 == count )
- {
- if (fi & 2)
- {
- if ((*partialSdu) &&
- (sn == ((rbCb->m.umUl.sn + 1) & rbCb->m.umUl.modBitMask)))
- {
- ODU_CAT_MSG(*partialSdu,sdu,M1M2);
- RLC_FREE_BUF(sdu);
- if (liCount > 0 || !(fi & 1))
- {
- rlcUtlSendUlDataToDu(gCb,rbCb,*partialSdu);
- *partialSdu = NULLP;
- }
- }
- else
- {
- /* Partial Sdu stored is not valid now.So free it */
- if (*partialSdu)
- {
- RLC_FREE_BUF(*partialSdu);
- *partialSdu = NULLP;
- }
-
- RLC_FREE_BUF(sdu);
- sdu = NULLP;
- }
- }
- else
- {
- if (*partialSdu)
- {
- RLC_FREE_BUF(*partialSdu); /* RLC mem leak fix */
- *partialSdu = NULLP;
- }
-
- if (liCount > 0 || !( fi & 1))
- {
- rlcUtlSendUlDataToDu(gCb,rbCb,sdu);
- }
- else
- {
- *partialSdu = sdu;
- }
- }
- }
- /*
- If the SDU pointer has the last Data field of the PDU
- -# If FI is 1,place the SDU in rbCb->m.um.umDl.partialSdu
- -# else send the SDU to upper layer.
- */
- else if (count == liCount)
- {
- if (fi & 1)
- {
- *partialSdu = sdu;
- }
- else
- {
- rlcUtlSendUlDataToDu(gCb, rbCb, sdu);
- }
- }
- /*
- If the LI is something other than the first one,
- just send the SDU to the upper layer */
- else
- {
- rlcUtlSendUlDataToDu(gCb, rbCb, sdu);
- }
- }
- rbCb->m.umUl.sn = sn;
-
- return;
-}
-
/**
* @brief Handler to process the re-establishment request received
* from the upper layer.
{
if ( recBuf[curSn] != NULLP )
{
+#ifdef NR_RLC_UL
rlcUmmReAssembleSdus(gCb,rbCb,recBuf[curSn]);
- RLC_FREE_WC(gCb,recBuf[curSn],sizeof(RlcUmRecBuf));
+#endif
+ RLC_FREE(gCb,recBuf[curSn],sizeof(RlcUmRecBuf));
recBuf[curSn] = NULLP;
}
curSn = (curSn + 1) & rbCb->m.umUl.modBitMask;
{
if (RLC_UMUL.recBuf[prevVrUr])
{
+#ifdef NR_RLC_UL
rlcUmmReAssembleSdus(gCb, rbCb, RLC_UMUL.recBuf[prevVrUr]);
+#endif
if(RLC_UMUL.recBuf[prevVrUr]->pdu != NULLP) /* RLC mem leak fix */
{
- RLC_FREE_BUF(RLC_UMUL.recBuf[prevVrUr]->pdu);
+ ODU_PUT_MSG_BUF(RLC_UMUL.recBuf[prevVrUr]->pdu);
}
- RLC_FREE_WC(gCb, RLC_UMUL.recBuf[prevVrUr], sizeof(RlcUmRecBuf));
+ RLC_FREE(gCb, RLC_UMUL.recBuf[prevVrUr], sizeof(RlcUmRecBuf));
RLC_UMUL.recBuf[prevVrUr] = NULLP;
}
{
if (umRecBuf[curSn] != NULLP)
{
- RLC_FREE_BUF_WC(umRecBuf[curSn]->pdu);
+ ODU_PUT_MSG_BUF(umRecBuf[curSn]->pdu);
umRecBuf[curSn]->pdu = NULLP;
- RLC_FREE_WC(gCb, umRecBuf[curSn], sizeof(RlcUmRecBuf));
+ RLC_FREE(gCb, umRecBuf[curSn], sizeof(RlcUmRecBuf));
umRecBuf[curSn] = NULLP;
}
curSn++;
}
- RLC_FREE_WC(gCb,rbCb->m.umUl.recBuf, (windSz ) * sizeof(RlcUmRecBuf*));
+ RLC_FREE(gCb,rbCb->m.umUl.recBuf, (windSz ) * sizeof(RlcUmRecBuf*));
rbCb->m.umUl.recBuf = NULLP;
return;
}
Code Review / o-du / l2.git / blobdiff