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)
58 MacDlSlot *currDlSlot = NULLP;
60 #ifdef CALL_FLOW_DEBUG_LOG
61 DU_LOG("\nCall Flow: ENTSCH -> ENTMAC : EVENT_DL_SCH_INFO\n");
63 if(dlSchedInfo != NULLP)
65 GET_CELL_IDX(dlSchedInfo->cellId, cellIdx);
66 if(dlSchedInfo->isBroadcastPres)
68 currDlSlot = &macCb.macCell[cellIdx]->\
69 dlSlot[dlSchedInfo->schSlotValue.broadcastTime.slot];
70 currDlSlot->dlInfo.isBroadcastPres = true;
71 memcpy(&currDlSlot->dlInfo.brdcstAlloc, &dlSchedInfo->brdcstAlloc, sizeof(DlBrdcstAlloc));
72 currDlSlot->dlInfo.brdcstAlloc.sib1Alloc.sib1PdcchCfg.dci.pdschCfg = \
73 &currDlSlot->dlInfo.brdcstAlloc.sib1Alloc.sib1PdschCfg;
76 if(dlSchedInfo->rarAlloc != NULLP)
78 currDlSlot = &macCb.macCell[cellIdx]->\
79 dlSlot[dlSchedInfo->schSlotValue.rarTime.slot];
80 currDlSlot->dlInfo.rarAlloc = dlSchedInfo->rarAlloc;
83 fillRarPdu(&currDlSlot->dlInfo.rarAlloc->rarInfo);
86 if(dlSchedInfo->dlMsgAlloc != NULLP)
88 currDlSlot = &macCb.macCell[cellIdx]->\
89 dlSlot[dlSchedInfo->schSlotValue.dlMsgTime.slot];
90 currDlSlot->dlInfo.dlMsgAlloc = dlSchedInfo->dlMsgAlloc; /* copy msg4 alloc pointer in MAC slot info */
91 currDlSlot->dlInfo.cellId = dlSchedInfo->cellId;
93 /* Check if the downlink pdu is msg4 */
94 if(dlSchedInfo->dlMsgAlloc->dlMsgInfo.isMsg4Pdu)
96 macCb.macCell[cellIdx]->macRaCb[0].msg4TbSize = dlSchedInfo->dlMsgAlloc->dlMsgPdschCfg.codeword[0].tbSize;
100 memcpy(&currDlSlot->dlInfo.schSlotValue, &dlSchedInfo->schSlotValue, sizeof(SchSlotValue));
101 /* Send LC schedule result to RLC */
102 sendSchedRptToRlc(currDlSlot->dlInfo, dlSchedInfo->schSlotValue.dlMsgTime);
106 if(dlSchedInfo->ulGrant != NULLP)
108 currDlSlot = &macCb.macCell[cellIdx]->\
109 dlSlot[dlSchedInfo->schSlotValue.ulDciTime.slot];
110 currDlSlot->dlInfo.ulGrant = dlSchedInfo->ulGrant;
117 * @brief Forming anf filling the MUX Pdu
120 * Function : fillMsg4Pdu
122 * Forming and filling of Msg4Pdu
124 * @param[in] DlMsgAlloc *msg4Alloc
127 void fillMsg4Pdu(uint16_t cellId, DlMsgAlloc *msg4Alloc)
131 uint16_t msg4TxPduLen;
132 MacDlData msg4DlData;
135 GET_CELL_IDX(cellId, cellIdx);
137 memset(&msg4DlData, 0, sizeof(MacDlData));
138 memset(&macCeData, 0, sizeof(MacCeInfo));
140 GET_UE_IDX(msg4Alloc->dlMsgInfo.crnti, ueIdx);
143 if(macCb.macCell[cellIdx] == NULLP)
145 DU_LOG("\nERROR --> MAC: Cell Id[%d] not found", cellId);
149 if(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4Pdu != NULLP)
151 MAC_ALLOC(msg4DlData.pduInfo[ueIdx].dlPdu, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4PduLen);
152 if(msg4DlData.pduInfo[ueIdx].dlPdu != NULLP)
154 msg4TxPduLen = macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TbSize - TX_PAYLOAD_HDR_LEN;
156 fillMsg4DlData(&msg4DlData, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4PduLen, \
157 macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4Pdu);
158 fillMacCe(&macCeData, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg3Pdu);
159 /* Forming Mux Pdu */
160 macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TxPdu = NULLP;
161 MAC_ALLOC(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TxPdu, msg4TxPduLen);
162 if(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TxPdu != NULLP)
164 memset(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TxPdu, 0, msg4TxPduLen);
165 macMuxPdu(&msg4DlData, &macCeData, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TxPdu, msg4TxPduLen);
169 DU_LOG("\nERROR --> MAC: Failed allocating memory for msg4TxPdu");
171 /* Free memory allocated */
172 MAC_FREE(msg4DlData.pduInfo[0].dlPdu, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4PduLen);
176 /* storing msg4 Pdu in macDlSlot */
177 if(macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TxPdu)
179 msg4Alloc->dlMsgInfo.dlMsgPduLen = msg4TxPduLen;
180 MAC_ALLOC(msg4Alloc->dlMsgInfo.dlMsgPdu, msg4Alloc->dlMsgInfo.dlMsgPduLen);
181 if(msg4Alloc->dlMsgInfo.dlMsgPdu != NULLP)
183 memcpy(msg4Alloc->dlMsgInfo.dlMsgPdu, macCb.macCell[cellIdx]->macRaCb[ueIdx].msg4TxPdu, \
184 msg4Alloc->dlMsgInfo.dlMsgPduLen);
189 DU_LOG("\nERROR --> MAC: Failed at macMuxPdu()");
194 * @brief Builds and Send the Muxed Pdu to Lower MAC
198 * Function : buildAndSendMuxPdu
200 * Build and Sends the Muxed Pdu to Lower MAC.
202 * @param[in] SlotIndInfo *slotInd
206 void buildAndSendMuxPdu(SlotIndInfo currTimingInfo)
209 MacDlSlot *currDlSlot = NULLP;
210 SlotIndInfo muxTimingInfo;
211 memset(&muxTimingInfo, 0, sizeof(SlotIndInfo));
213 GET_CELL_IDX(currTimingInfo.cellId, cellIdx);
215 ADD_DELTA_TO_TIME(currTimingInfo, muxTimingInfo, PHY_DELTA_DL);
216 currDlSlot = &macCb.macCell[cellIdx]->dlSlot[muxTimingInfo.slot];
217 if(currDlSlot->dlInfo.dlMsgAlloc)
219 if(currDlSlot->dlInfo.dlMsgAlloc->dlMsgInfo.isMsg4Pdu)
221 fillMsg4Pdu(currTimingInfo.cellId, currDlSlot->dlInfo.dlMsgAlloc);
228 * @brief Transmission time interval indication from PHY.
232 * Function : sendSlotIndMacToSch
234 * This API is invoked by MAC to send slot ind to scheduler.
236 * @param[in] SlotIndInfo *slotInd
241 int sendSlotIndMacToSch(SlotIndInfo *slotInd)
243 /* fill Pst structure to send to lwr_mac to MAC */
246 FILL_PST_MAC_TO_SCH(pst, EVENT_SLOT_IND_TO_SCH);
247 return(*macSchSlotIndOpts[pst.selector])(&pst,slotInd);
250 /*******************************************************************
252 * @brief Send cell up indication to DU APP
256 * Function : sendCellUpIndMacToDuApp
259 * Send cell up indication to DU APP
261 * @params[in] Cell Up indication info
262 * @return ROK - success
265 * ****************************************************************/
266 int sendCellUpIndMacToDuApp(uint16_t cellId)
270 OduCellId *oduCellId;
272 /* Allocate sharable memory */
273 MAC_ALLOC_SHRABL_BUF(oduCellId, sizeof(OduCellId));
276 DU_LOG("\nERROR --> MAC : Memory allocation failed for cell up indication");
279 oduCellId->cellId = cellId;
282 FILL_PST_MAC_TO_DUAPP(pst, EVENT_MAC_CELL_UP_IND);
284 ret = MacDuAppCellUpInd(&pst, oduCellId);
287 DU_LOG("\nERROR --> MAC: Failed to send cell up indication to DU APP");
288 MAC_FREE_SHRABL_BUF(MAC_MEM_REGION, MAC_POOL, oduCellId, sizeof(OduCellId));
292 } /* sendCellUpIndMacToDuApp */
294 /*******************************************************************
296 * @brief Process slot indication at MAC
300 * Function : macProcSlotInd
302 * Functionality: Process slot indication at MAC
304 * @params[in] Slot indication info
305 * @return ROK - success
308 * ****************************************************************/
309 uint8_t macProcSlotInd(SlotIndInfo slotInd)
311 uint16_t cellIdx = 0;
313 GET_CELL_IDX(slotInd.cellId, cellIdx);
315 if(macCb.macCell[cellIdx] == NULLP)
317 DU_LOG("ERROR --> MAC : macProcSlotInd(): CellId[%d] does not exist. Error occurred at SFN [%d] Slot [%d]",\
318 slotInd.cellId, slotInd.sfn, slotInd.slot);
321 /* Store current time info */
322 macCb.macCell[cellIdx]->currTime.cellId = slotInd.cellId;
323 macCb.macCell[cellIdx]->currTime.slot = slotInd.slot;
324 macCb.macCell[cellIdx]->currTime.sfn = slotInd.sfn;
326 /* Mux Pdu for Msg4 */
327 buildAndSendMuxPdu(slotInd);
329 /* Trigger for DL TTI REQ */
330 fillDlTtiReq(slotInd);
333 } /* macProcSlotInd */
336 * @brief Transmission time interval indication from PHY.
340 * Function : fapiMacSlotInd
342 * This API is invoked by PHY to indicate TTI indication to MAC for a cell.
344 * @param[in] Pst *pst
345 * @param[in] SuId suId
346 * @param[in] SlotIndInfo *slotInd
351 uint8_t fapiMacSlotInd(Pst *pst, SlotIndInfo *slotInd)
355 volatile uint32_t startTime=0;
357 #ifdef ODU_SLOT_IND_DEBUG_LOG
358 DU_LOG("\nDEBUG --> MAC : Slot Indication received. [%d : %d]", slotInd->sfn, slotInd->slot);
361 ODU_START_TASK(&startTime, PID_MAC_TTI_IND);
366 GET_CELL_IDX(slotInd->cellId, cellIdx);
367 macCb.macCell[cellIdx]->state = CELL_STATE_UP;
370 /* When testing L2 with Intel-L1, any changes specific to
371 * timer mode testing must be guarded under INTEL_TIMER_MODE*/
372 #ifndef INTEL_TIMER_MODE
373 /* send slot indication to scheduler */
374 ret = sendSlotIndMacToSch(slotInd);
377 DU_LOG("\nERROR --> MAC : Sending of slot ind msg from MAC to SCH failed");
378 MAC_FREE_SHRABL_BUF(pst->region, pst->pool, slotInd, sizeof(SlotIndInfo));
382 ret = macProcSlotInd(*slotInd);
385 DU_LOG("\nERROR --> MAC : macProcSlotInd failed");
386 MAC_FREE_SHRABL_BUF(pst->region, pst->pool, slotInd, sizeof(SlotIndInfo));
391 /* send slot indication to du app */
394 ret = sendCellUpIndMacToDuApp(slotInd->cellId);
397 DU_LOG("\nERROR --> MAC :Sending of slot ind msg from MAC to DU APP failed");
398 MAC_FREE_SHRABL_BUF(pst->region, pst->pool, slotInd, sizeof(SlotIndInfo));
404 ODU_STOP_TASK(startTime, PID_MAC_TTI_IND);
405 MAC_FREE_SHRABL_BUF(pst->region, pst->pool, slotInd, sizeof(SlotIndInfo));
408 lwrMacCb.phySlotIndCntr++;
409 if(lwrMacCb.phySlotIndCntr > WLS_MEM_FREE_PRD)
411 lwrMacCb.phySlotIndCntr = 1;
413 freeWlsBlockList(lwrMacCb.phySlotIndCntr - 1);
417 } /* fapiMacSlotInd */
419 /**********************************************************************
421 **********************************************************************/