1 /*******************************************************************************
2 ################################################################################
3 # Copyright (c) [2017-2019] [Radisys] #
5 # Licensed under the Apache License, Version 2.0 (the "License"); #
6 # you may not use this file except in compliance with the License. #
7 # You may obtain a copy of the License at #
9 # http://www.apache.org/licenses/LICENSE-2.0 #
11 # Unless required by applicable law or agreed to in writing, software #
12 # distributed under the License is distributed on an "AS IS" BASIS, #
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. #
14 # See the License for the specific language governing permissions and #
15 # limitations under the License. #
16 ################################################################################
17 *******************************************************************************/
18 /* header include files (.h) */
19 #include "common_def.h"
22 #include "du_app_mac_inf.h"
23 #include "mac_sch_interface.h"
24 #include "lwr_mac_upr_inf.h"
25 #include "rlc_mac_inf.h"
27 #include "mac_upr_inf_api.h"
29 #include "lwr_mac_fsm.h"
30 #include "mac_utils.h"
32 /* function pointers for packing slot ind from mac to sch */
33 MacSchSlotIndFunc macSchSlotIndOpts[] =
41 * @brief process DL allocation from scheduler
45 * Function : MacProcDlAlloc
47 * This function copied dl sch info in the mac slot info
50 * @param[in] DL allocation from scheduler
55 uint8_t MacProcDlAlloc(Pst *pst, DlSchedInfo *dlSchedInfo)
59 MacDlSlot *currDlSlot = NULLP;
61 #ifdef CALL_FLOW_DEBUG_LOG
62 DU_LOG("\nCall Flow: ENTSCH -> ENTMAC : EVENT_DL_SCH_INFO\n");
64 if(dlSchedInfo != NULLP)
66 GET_CELL_IDX(dlSchedInfo->cellId, cellIdx);
67 if(dlSchedInfo->isBroadcastPres)
69 currDlSlot = &macCb.macCell[cellIdx]->\
70 dlSlot[dlSchedInfo->schSlotValue.broadcastTime.slot];
71 currDlSlot->dlInfo.isBroadcastPres = true;
72 memcpy(&currDlSlot->dlInfo.brdcstAlloc, &dlSchedInfo->brdcstAlloc, sizeof(DlBrdcstAlloc));
73 currDlSlot->dlInfo.brdcstAlloc.sib1Alloc.sib1PdcchCfg.dci.pdschCfg = \
74 &currDlSlot->dlInfo.brdcstAlloc.sib1Alloc.sib1PdschCfg;
77 for(ueIdx=0; ueIdx<MAX_NUM_UE; ueIdx++)
79 if(dlSchedInfo->rarAlloc[ueIdx] != NULLP)
81 currDlSlot = &macCb.macCell[cellIdx]->dlSlot[dlSchedInfo->schSlotValue.rarTime.slot];
82 currDlSlot->dlInfo.rarAlloc[ueIdx] = dlSchedInfo->rarAlloc[ueIdx];
85 fillRarPdu(&currDlSlot->dlInfo.rarAlloc[ueIdx]->rarInfo);
89 if(dlSchedInfo->dlMsgAlloc != NULLP)
91 currDlSlot = &macCb.macCell[cellIdx]->\
92 dlSlot[dlSchedInfo->schSlotValue.dlMsgTime.slot];
93 currDlSlot->dlInfo.dlMsgAlloc = dlSchedInfo->dlMsgAlloc; /* copy msg4 alloc pointer in MAC slot info */
94 currDlSlot->dlInfo.cellId = dlSchedInfo->cellId;
96 /* Check if the downlink pdu is msg4 */
97 if(dlSchedInfo->dlMsgAlloc->dlMsgInfo.isMsg4Pdu)
99 GET_UE_IDX(dlSchedInfo->dlMsgAlloc->dlMsgInfo.crnti, ueIdx);
101 macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TbSize = \
102 dlSchedInfo->dlMsgAlloc->dlMsgPdschCfg.codeword[0].tbSize;
106 memcpy(&currDlSlot->dlInfo.schSlotValue, &dlSchedInfo->schSlotValue, sizeof(SchSlotValue));
107 /* Send LC schedule result to RLC */
108 sendSchedRptToRlc(currDlSlot->dlInfo, dlSchedInfo->schSlotValue.dlMsgTime);
112 if(dlSchedInfo->ulGrant != NULLP)
114 currDlSlot = &macCb.macCell[cellIdx]->\
115 dlSlot[dlSchedInfo->schSlotValue.ulDciTime.slot];
116 currDlSlot->dlInfo.ulGrant = dlSchedInfo->ulGrant;
123 * @brief Forming anf filling the MUX Pdu
126 * Function : fillMsg4Pdu
128 * Forming and filling of Msg4Pdu
130 * @param[in] DlMsgAlloc *msg4Alloc
133 void fillMsg4Pdu(uint16_t cellId, DlMsgAlloc *msg4Alloc)
137 uint16_t msg4TxPduLen;
138 MacDlData msg4DlData;
141 GET_CELL_IDX(cellId, cellIdx);
143 memset(&msg4DlData, 0, sizeof(MacDlData));
144 memset(&macCeData, 0, sizeof(MacCeInfo));
146 GET_UE_IDX(msg4Alloc->dlMsgInfo.crnti, ueIdx);
149 if(macCb.macCell[cellIdx] == NULLP)
151 DU_LOG("\nERROR --> MAC: Cell Id[%d] not found", cellId);
155 if(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4Pdu != NULLP)
157 MAC_ALLOC(msg4DlData.pduInfo[msg4DlData.numPdu].dlPdu, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4PduLen);
158 if(msg4DlData.pduInfo[msg4DlData.numPdu].dlPdu != NULLP)
160 msg4TxPduLen = macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TbSize - TX_PAYLOAD_HDR_LEN;
162 fillMsg4DlData(&msg4DlData, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4PduLen, \
163 macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4Pdu);
164 fillMacCe(&macCeData, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg3Pdu);
165 /* Forming Mux Pdu */
166 macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TxPdu = NULLP;
167 MAC_ALLOC(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TxPdu, msg4TxPduLen);
168 if(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TxPdu != NULLP)
170 memset(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TxPdu, 0, msg4TxPduLen);
171 macMuxPdu(&msg4DlData, &macCeData, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TxPdu, msg4TxPduLen);
175 DU_LOG("\nERROR --> MAC: Failed allocating memory for msg4TxPdu");
177 /* Free memory allocated */
178 MAC_FREE(msg4DlData.pduInfo[msg4DlData.numPdu-1].dlPdu, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4PduLen);
183 /* storing msg4 Pdu in macDlSlot */
184 if(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TxPdu)
186 msg4Alloc->dlMsgInfo.dlMsgPduLen = msg4TxPduLen;
187 MAC_ALLOC(msg4Alloc->dlMsgInfo.dlMsgPdu, msg4Alloc->dlMsgInfo.dlMsgPduLen);
188 if(msg4Alloc->dlMsgInfo.dlMsgPdu != NULLP)
190 memcpy(msg4Alloc->dlMsgInfo.dlMsgPdu, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TxPdu, \
191 msg4Alloc->dlMsgInfo.dlMsgPduLen);
196 DU_LOG("\nERROR --> MAC: Failed at macMuxPdu()");
201 * @brief Builds and Send the Muxed Pdu to Lower MAC
205 * Function : buildAndSendMuxPdu
207 * Build and Sends the Muxed Pdu to Lower MAC.
209 * @param[in] SlotTimingInfo *slotInd
213 void buildAndSendMuxPdu(SlotTimingInfo currTimingInfo)
216 MacDlSlot *currDlSlot = NULLP;
217 SlotTimingInfo muxTimingInfo;
218 memset(&muxTimingInfo, 0, sizeof(SlotTimingInfo));
220 GET_CELL_IDX(currTimingInfo.cellId, cellIdx);
222 ADD_DELTA_TO_TIME(currTimingInfo, muxTimingInfo, PHY_DELTA_DL);
223 currDlSlot = &macCb.macCell[cellIdx]->dlSlot[muxTimingInfo.slot];
224 if(currDlSlot->dlInfo.dlMsgAlloc)
226 if(currDlSlot->dlInfo.dlMsgAlloc->dlMsgInfo.isMsg4Pdu)
228 fillMsg4Pdu(currTimingInfo.cellId, currDlSlot->dlInfo.dlMsgAlloc);
235 * @brief Transmission time interval indication from PHY.
239 * Function : sendSlotIndMacToSch
241 * This API is invoked by MAC to send slot ind to scheduler.
243 * @param[in] SlotTimingInfo *slotInd
248 int sendSlotIndMacToSch(SlotTimingInfo *slotInd)
250 /* fill Pst structure to send to lwr_mac to MAC */
253 FILL_PST_MAC_TO_SCH(pst, EVENT_SLOT_IND_TO_SCH);
254 return(*macSchSlotIndOpts[pst.selector])(&pst,slotInd);
257 /*******************************************************************
259 * @brief Send cell up indication to DU APP
263 * Function : sendCellUpIndMacToDuApp
266 * Send cell up indication to DU APP
268 * @params[in] Cell Up indication info
269 * @return ROK - success
272 * ****************************************************************/
273 int sendCellUpIndMacToDuApp(uint16_t cellId)
277 OduCellId *oduCellId;
279 /* Allocate sharable memory */
280 MAC_ALLOC_SHRABL_BUF(oduCellId, sizeof(OduCellId));
283 DU_LOG("\nERROR --> MAC : Memory allocation failed for cell up indication");
286 oduCellId->cellId = cellId;
289 FILL_PST_MAC_TO_DUAPP(pst, EVENT_MAC_CELL_UP_IND);
291 ret = MacDuAppCellUpInd(&pst, oduCellId);
294 DU_LOG("\nERROR --> MAC: Failed to send cell up indication to DU APP");
295 MAC_FREE_SHRABL_BUF(MAC_MEM_REGION, MAC_POOL, oduCellId, sizeof(OduCellId));
299 } /* sendCellUpIndMacToDuApp */
301 /*******************************************************************
303 * @brief Process slot indication at MAC
307 * Function : macProcSlotInd
309 * Functionality: Process slot indication at MAC
311 * @params[in] Slot indication info
312 * @return ROK - success
315 * ****************************************************************/
316 uint8_t macProcSlotInd(SlotTimingInfo slotInd)
318 uint16_t cellIdx = 0;
320 GET_CELL_IDX(slotInd.cellId, cellIdx);
322 if(macCb.macCell[cellIdx] == NULLP)
324 DU_LOG("ERROR --> MAC : macProcSlotInd(): CellId[%d] does not exist. Error occurred at SFN [%d] Slot [%d]",\
325 slotInd.cellId, slotInd.sfn, slotInd.slot);
328 /* Store current time info */
329 macCb.macCell[cellIdx]->currTime.cellId = slotInd.cellId;
330 macCb.macCell[cellIdx]->currTime.slot = slotInd.slot;
331 macCb.macCell[cellIdx]->currTime.sfn = slotInd.sfn;
333 /* Mux Pdu for Msg4 */
334 buildAndSendMuxPdu(slotInd);
336 /* Trigger for DL TTI REQ */
337 fillDlTtiReq(slotInd);
340 } /* macProcSlotInd */
343 * @brief Transmission time interval indication from PHY.
347 * Function : fapiMacSlotInd
349 * This API is invoked by PHY to indicate TTI indication to MAC for a cell.
351 * @param[in] Pst *pst
352 * @param[in] SuId suId
353 * @param[in] SlotTimingInfo *slotInd
358 uint8_t fapiMacSlotInd(Pst *pst, SlotTimingInfo *slotInd)
362 volatile uint32_t startTime=0;
364 #ifdef ODU_SLOT_IND_DEBUG_LOG
365 DU_LOG("\nDEBUG --> MAC : Slot Indication received. [%d : %d]", slotInd->sfn, slotInd->slot);
368 ODU_START_TASK(&startTime, PID_MAC_TTI_IND);
373 GET_CELL_IDX(slotInd->cellId, cellIdx);
374 macCb.macCell[cellIdx]->state = CELL_STATE_UP;
377 /* When testing L2 with Intel-L1, any changes specific to
378 * timer mode testing must be guarded under INTEL_TIMER_MODE*/
379 #ifndef INTEL_TIMER_MODE
380 /* send slot indication to scheduler */
381 ret = sendSlotIndMacToSch(slotInd);
384 DU_LOG("\nERROR --> MAC : Sending of slot ind msg from MAC to SCH failed");
385 MAC_FREE_SHRABL_BUF(pst->region, pst->pool, slotInd, sizeof(SlotTimingInfo));
389 ret = macProcSlotInd(*slotInd);
392 DU_LOG("\nERROR --> MAC : macProcSlotInd failed");
393 MAC_FREE_SHRABL_BUF(pst->region, pst->pool, slotInd, sizeof(SlotTimingInfo));
398 /* send slot indication to du app */
401 ret = sendCellUpIndMacToDuApp(slotInd->cellId);
404 DU_LOG("\nERROR --> MAC :Sending of slot ind msg from MAC to DU APP failed");
405 MAC_FREE_SHRABL_BUF(pst->region, pst->pool, slotInd, sizeof(SlotTimingInfo));
411 ODU_STOP_TASK(startTime, PID_MAC_TTI_IND);
412 MAC_FREE_SHRABL_BUF(pst->region, pst->pool, slotInd, sizeof(SlotTimingInfo));
415 lwrMacCb.phySlotIndCntr++;
416 if(lwrMacCb.phySlotIndCntr > WLS_MEM_FREE_PRD)
418 lwrMacCb.phySlotIndCntr = 1;
420 freeWlsBlockList(lwrMacCb.phySlotIndCntr - 1);
424 } /* fapiMacSlotInd */
426 /**********************************************************************
428 **********************************************************************/