2 #include <linux/etherdevice.h>
3 #include <linux/slab.h>
4 #include "rtl819x_TS.h"
6 void TsSetupTimeOut(unsigned long data)
9 // This is used for WMMSA and ACM , that would send ADDTSReq frame.
12 void TsInactTimeout(unsigned long data)
15 // This is used for WMMSA and ACM.
16 // This function would be call when TS is no Tx/Rx for some period of time.
19 /********************************************************************************************************************
20 *function: I still not understand this function, so wait for further implementation
21 * input: unsigned long data //acturally we send TX_TS_RECORD or RX_TS_RECORD to these timer
24 ********************************************************************************************************************/
25 void RxPktPendingTimeout(unsigned long data)
27 PRX_TS_RECORD pRxTs = (PRX_TS_RECORD)data;
28 struct ieee80211_device *ieee = container_of(pRxTs, struct ieee80211_device, RxTsRecord[pRxTs->num]);
30 PRX_REORDER_ENTRY pReorderEntry = NULL;
33 unsigned long flags = 0;
34 struct ieee80211_rxb *stats_IndicateArray[REORDER_WIN_SIZE];
36 bool bPktInBuf = false;
39 spin_lock_irqsave(&(ieee->reorder_spinlock), flags);
40 //PlatformAcquireSpinLock(Adapter, RT_RX_SPINLOCK);
41 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"==================>%s()\n",__FUNCTION__);
42 if(pRxTs->RxTimeoutIndicateSeq != 0xffff)
44 // Indicate the pending packets sequentially according to SeqNum until meet the gap.
45 while(!list_empty(&pRxTs->RxPendingPktList))
47 pReorderEntry = (PRX_REORDER_ENTRY)list_entry(pRxTs->RxPendingPktList.prev,RX_REORDER_ENTRY,List);
49 pRxTs->RxIndicateSeq = pReorderEntry->SeqNum;
51 if( SN_LESS(pReorderEntry->SeqNum, pRxTs->RxIndicateSeq) ||
52 SN_EQUAL(pReorderEntry->SeqNum, pRxTs->RxIndicateSeq) )
54 list_del_init(&pReorderEntry->List);
56 if(SN_EQUAL(pReorderEntry->SeqNum, pRxTs->RxIndicateSeq))
57 pRxTs->RxIndicateSeq = (pRxTs->RxIndicateSeq + 1) % 4096;
59 IEEE80211_DEBUG(IEEE80211_DL_REORDER,"RxPktPendingTimeout(): IndicateSeq: %d\n", pReorderEntry->SeqNum);
60 stats_IndicateArray[index] = pReorderEntry->prxb;
63 list_add_tail(&pReorderEntry->List, &ieee->RxReorder_Unused_List);
75 // Set RxTimeoutIndicateSeq to 0xffff to indicate no pending packets in buffer now.
76 pRxTs->RxTimeoutIndicateSeq = 0xffff;
79 if(index > REORDER_WIN_SIZE){
80 IEEE80211_DEBUG(IEEE80211_DL_ERR, "RxReorderIndicatePacket(): Rx Reorer buffer full!! \n");
81 spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
84 ieee80211_indicate_packets(ieee, stats_IndicateArray, index);
87 if(bPktInBuf && (pRxTs->RxTimeoutIndicateSeq==0xffff))
89 pRxTs->RxTimeoutIndicateSeq = pRxTs->RxIndicateSeq;
90 mod_timer(&pRxTs->RxPktPendingTimer, jiffies + MSECS(ieee->pHTInfo->RxReorderPendingTime));
92 spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
93 //PlatformReleaseSpinLock(Adapter, RT_RX_SPINLOCK);
96 /********************************************************************************************************************
97 *function: Add BA timer function
98 * input: unsigned long data //acturally we send TX_TS_RECORD or RX_TS_RECORD to these timer
101 ********************************************************************************************************************/
102 void TsAddBaProcess(unsigned long data)
104 PTX_TS_RECORD pTxTs = (PTX_TS_RECORD)data;
106 struct ieee80211_device *ieee = container_of(pTxTs, struct ieee80211_device, TxTsRecord[num]);
108 TsInitAddBA(ieee, pTxTs, BA_POLICY_IMMEDIATE, false);
109 IEEE80211_DEBUG(IEEE80211_DL_BA, "TsAddBaProcess(): ADDBA Req is started!! \n");
113 void ResetTsCommonInfo(PTS_COMMON_INFO pTsCommonInfo)
115 memset(pTsCommonInfo->Addr, 0, 6);
116 memset(&pTsCommonInfo->TSpec, 0, sizeof(TSPEC_BODY));
117 memset(&pTsCommonInfo->TClass, 0, sizeof(QOS_TCLAS)*TCLAS_NUM);
118 pTsCommonInfo->TClasProc = 0;
119 pTsCommonInfo->TClasNum = 0;
122 void ResetTxTsEntry(PTX_TS_RECORD pTS)
124 ResetTsCommonInfo(&pTS->TsCommonInfo);
126 pTS->bAddBaReqInProgress = false;
127 pTS->bAddBaReqDelayed = false;
128 pTS->bUsingBa = false;
129 ResetBaEntry(&pTS->TxAdmittedBARecord); //For BA Originator
130 ResetBaEntry(&pTS->TxPendingBARecord);
133 void ResetRxTsEntry(PRX_TS_RECORD pTS)
135 ResetTsCommonInfo(&pTS->TsCommonInfo);
136 pTS->RxIndicateSeq = 0xffff; // This indicate the RxIndicateSeq is not used now!!
137 pTS->RxTimeoutIndicateSeq = 0xffff; // This indicate the RxTimeoutIndicateSeq is not used now!!
138 ResetBaEntry(&pTS->RxAdmittedBARecord); // For BA Recipient
141 void TSInitialize(struct ieee80211_device *ieee)
143 PTX_TS_RECORD pTxTS = ieee->TxTsRecord;
144 PRX_TS_RECORD pRxTS = ieee->RxTsRecord;
145 PRX_REORDER_ENTRY pRxReorderEntry = ieee->RxReorderEntry;
147 IEEE80211_DEBUG(IEEE80211_DL_TS, "==========>%s()\n", __FUNCTION__);
148 // Initialize Tx TS related info.
149 INIT_LIST_HEAD(&ieee->Tx_TS_Admit_List);
150 INIT_LIST_HEAD(&ieee->Tx_TS_Pending_List);
151 INIT_LIST_HEAD(&ieee->Tx_TS_Unused_List);
153 for(count = 0; count < TOTAL_TS_NUM; count++)
157 // The timers for the operation of Traffic Stream and Block Ack.
158 // DLS related timer will be add here in the future!!
159 init_timer(&pTxTS->TsCommonInfo.SetupTimer);
160 pTxTS->TsCommonInfo.SetupTimer.data = (unsigned long)pTxTS;
161 pTxTS->TsCommonInfo.SetupTimer.function = TsSetupTimeOut;
163 init_timer(&pTxTS->TsCommonInfo.InactTimer);
164 pTxTS->TsCommonInfo.InactTimer.data = (unsigned long)pTxTS;
165 pTxTS->TsCommonInfo.InactTimer.function = TsInactTimeout;
167 init_timer(&pTxTS->TsAddBaTimer);
168 pTxTS->TsAddBaTimer.data = (unsigned long)pTxTS;
169 pTxTS->TsAddBaTimer.function = TsAddBaProcess;
171 init_timer(&pTxTS->TxPendingBARecord.Timer);
172 pTxTS->TxPendingBARecord.Timer.data = (unsigned long)pTxTS;
173 pTxTS->TxPendingBARecord.Timer.function = BaSetupTimeOut;
175 init_timer(&pTxTS->TxAdmittedBARecord.Timer);
176 pTxTS->TxAdmittedBARecord.Timer.data = (unsigned long)pTxTS;
177 pTxTS->TxAdmittedBARecord.Timer.function = TxBaInactTimeout;
179 ResetTxTsEntry(pTxTS);
180 list_add_tail(&pTxTS->TsCommonInfo.List, &ieee->Tx_TS_Unused_List);
184 // Initialize Rx TS related info.
185 INIT_LIST_HEAD(&ieee->Rx_TS_Admit_List);
186 INIT_LIST_HEAD(&ieee->Rx_TS_Pending_List);
187 INIT_LIST_HEAD(&ieee->Rx_TS_Unused_List);
188 for(count = 0; count < TOTAL_TS_NUM; count++)
191 INIT_LIST_HEAD(&pRxTS->RxPendingPktList);
193 init_timer(&pRxTS->TsCommonInfo.SetupTimer);
194 pRxTS->TsCommonInfo.SetupTimer.data = (unsigned long)pRxTS;
195 pRxTS->TsCommonInfo.SetupTimer.function = TsSetupTimeOut;
197 init_timer(&pRxTS->TsCommonInfo.InactTimer);
198 pRxTS->TsCommonInfo.InactTimer.data = (unsigned long)pRxTS;
199 pRxTS->TsCommonInfo.InactTimer.function = TsInactTimeout;
201 init_timer(&pRxTS->RxAdmittedBARecord.Timer);
202 pRxTS->RxAdmittedBARecord.Timer.data = (unsigned long)pRxTS;
203 pRxTS->RxAdmittedBARecord.Timer.function = RxBaInactTimeout;
205 init_timer(&pRxTS->RxPktPendingTimer);
206 pRxTS->RxPktPendingTimer.data = (unsigned long)pRxTS;
207 pRxTS->RxPktPendingTimer.function = RxPktPendingTimeout;
209 ResetRxTsEntry(pRxTS);
210 list_add_tail(&pRxTS->TsCommonInfo.List, &ieee->Rx_TS_Unused_List);
213 // Initialize unused Rx Reorder List.
214 INIT_LIST_HEAD(&ieee->RxReorder_Unused_List);
216 for(count = 0; count < REORDER_ENTRY_NUM; count++)
218 list_add_tail( &pRxReorderEntry->List,&ieee->RxReorder_Unused_List);
219 if(count == (REORDER_ENTRY_NUM-1))
221 pRxReorderEntry = &ieee->RxReorderEntry[count+1];
227 void AdmitTS(struct ieee80211_device *ieee, PTS_COMMON_INFO pTsCommonInfo, u32 InactTime)
229 del_timer_sync(&pTsCommonInfo->SetupTimer);
230 del_timer_sync(&pTsCommonInfo->InactTimer);
233 mod_timer(&pTsCommonInfo->InactTimer, jiffies + MSECS(InactTime));
237 PTS_COMMON_INFO SearchAdmitTRStream(struct ieee80211_device *ieee, u8* Addr, u8 TID, TR_SELECT TxRxSelect)
239 //DIRECTION_VALUE dir;
241 bool search_dir[4] = {0, 0, 0, 0};
242 struct list_head* psearch_list; //FIXME
243 PTS_COMMON_INFO pRet = NULL;
244 if(ieee->iw_mode == IW_MODE_MASTER) //ap mode
246 if(TxRxSelect == TX_DIR)
248 search_dir[DIR_DOWN] = true;
249 search_dir[DIR_BI_DIR]= true;
253 search_dir[DIR_UP] = true;
254 search_dir[DIR_BI_DIR]= true;
257 else if(ieee->iw_mode == IW_MODE_ADHOC)
259 if(TxRxSelect == TX_DIR)
260 search_dir[DIR_UP] = true;
262 search_dir[DIR_DOWN] = true;
266 if(TxRxSelect == TX_DIR)
268 search_dir[DIR_UP] = true;
269 search_dir[DIR_BI_DIR]= true;
270 search_dir[DIR_DIRECT]= true;
274 search_dir[DIR_DOWN] = true;
275 search_dir[DIR_BI_DIR]= true;
276 search_dir[DIR_DIRECT]= true;
280 if(TxRxSelect == TX_DIR)
281 psearch_list = &ieee->Tx_TS_Admit_List;
283 psearch_list = &ieee->Rx_TS_Admit_List;
285 //for(dir = DIR_UP; dir <= DIR_BI_DIR; dir++)
286 for(dir = 0; dir <= DIR_BI_DIR; dir++)
288 if(search_dir[dir] ==false )
290 list_for_each_entry(pRet, psearch_list, List){
291 // IEEE80211_DEBUG(IEEE80211_DL_TS, "ADD:%pM, TID:%d, dir:%d\n", pRet->Addr, pRet->TSpec.f.TSInfo.field.ucTSID, pRet->TSpec.f.TSInfo.field.ucDirection);
292 if (memcmp(pRet->Addr, Addr, 6) == 0)
293 if (pRet->TSpec.f.TSInfo.field.ucTSID == TID)
294 if(pRet->TSpec.f.TSInfo.field.ucDirection == dir)
300 if(&pRet->List != psearch_list)
304 if(&pRet->List != psearch_list){
312 PTS_COMMON_INFO pTsCommonInfo,
322 if(pTsCommonInfo == NULL)
325 memcpy(pTsCommonInfo->Addr, Addr, 6);
328 memcpy((u8*)(&(pTsCommonInfo->TSpec)), (u8*)pTSPEC, sizeof(TSPEC_BODY));
330 for(count = 0; count < TCLAS_Num; count++)
331 memcpy((u8*)(&(pTsCommonInfo->TClass[count])), (u8*)pTCLAS, sizeof(QOS_TCLAS));
333 pTsCommonInfo->TClasProc = TCLAS_Proc;
334 pTsCommonInfo->TClasNum = TCLAS_Num;
339 struct ieee80211_device* ieee,
340 PTS_COMMON_INFO *ppTS,
343 TR_SELECT TxRxSelect, //Rx:1, Tx:0
349 // We do not build any TS for Broadcast or Multicast stream.
350 // So reject these kinds of search here.
352 if(is_broadcast_ether_addr(Addr) || is_multicast_ether_addr(Addr))
354 IEEE80211_DEBUG(IEEE80211_DL_ERR, "get TS for Broadcast or Multicast\n");
358 if (ieee->current_network.qos_data.supported == 0)
362 // In WMM case: we use 4 TID only
365 IEEE80211_DEBUG(IEEE80211_DL_ERR, " in %s(), TID(%d) is not valid\n", __FUNCTION__, TID);
393 *ppTS = SearchAdmitTRStream(
404 if(bAddNewTs == false)
406 IEEE80211_DEBUG(IEEE80211_DL_TS, "add new TS failed(tid:%d)\n", UP);
412 // Create a new Traffic stream for current Tx/Rx
413 // This is for EDCA and WMM to add a new TS.
414 // For HCCA or WMMSA, TS cannot be addmit without negotiation.
417 PQOS_TSINFO pTSInfo = &TSpec.f.TSInfo;
418 struct list_head* pUnusedList =
419 (TxRxSelect == TX_DIR)?
420 (&ieee->Tx_TS_Unused_List):
421 (&ieee->Rx_TS_Unused_List);
423 struct list_head* pAddmitList =
424 (TxRxSelect == TX_DIR)?
425 (&ieee->Tx_TS_Admit_List):
426 (&ieee->Rx_TS_Admit_List);
428 DIRECTION_VALUE Dir = (ieee->iw_mode == IW_MODE_MASTER)?
429 ((TxRxSelect==TX_DIR)?DIR_DOWN:DIR_UP):
430 ((TxRxSelect==TX_DIR)?DIR_UP:DIR_DOWN);
431 IEEE80211_DEBUG(IEEE80211_DL_TS, "to add Ts\n");
432 if(!list_empty(pUnusedList))
434 (*ppTS) = list_entry(pUnusedList->next, TS_COMMON_INFO, List);
435 list_del_init(&(*ppTS)->List);
436 if(TxRxSelect==TX_DIR)
438 PTX_TS_RECORD tmp = container_of(*ppTS, TX_TS_RECORD, TsCommonInfo);
442 PRX_TS_RECORD tmp = container_of(*ppTS, RX_TS_RECORD, TsCommonInfo);
446 IEEE80211_DEBUG(IEEE80211_DL_TS, "to init current TS, UP:%d, Dir:%d, addr:%pM\n", UP, Dir, Addr);
447 // Prepare TS Info releated field
448 pTSInfo->field.ucTrafficType = 0; // Traffic type: WMM is reserved in this field
449 pTSInfo->field.ucTSID = UP; // TSID
450 pTSInfo->field.ucDirection = Dir; // Direction: if there is DirectLink, this need additional consideration.
451 pTSInfo->field.ucAccessPolicy = 1; // Access policy
452 pTSInfo->field.ucAggregation = 0; // Aggregation
453 pTSInfo->field.ucPSB = 0; // Aggregation
454 pTSInfo->field.ucUP = UP; // User priority
455 pTSInfo->field.ucTSInfoAckPolicy = 0; // Ack policy
456 pTSInfo->field.ucSchedule = 0; // Schedule
458 MakeTSEntry(*ppTS, Addr, &TSpec, NULL, 0, 0);
459 AdmitTS(ieee, *ppTS, 0);
460 list_add_tail(&((*ppTS)->List), pAddmitList);
461 // if there is DirectLink, we need to do additional operation here!!
467 IEEE80211_DEBUG(IEEE80211_DL_ERR, "in function %s() There is not enough TS record to be used!!", __FUNCTION__);
475 struct ieee80211_device* ieee,
481 unsigned long flags = 0;
482 del_timer_sync(&pTs->SetupTimer);
483 del_timer_sync(&pTs->InactTimer);
484 TsInitDelBA(ieee, pTs, TxRxSelect);
486 if(TxRxSelect == RX_DIR)
489 PRX_REORDER_ENTRY pRxReorderEntry;
490 PRX_TS_RECORD pRxTS = (PRX_TS_RECORD)pTs;
491 if(timer_pending(&pRxTS->RxPktPendingTimer))
492 del_timer_sync(&pRxTS->RxPktPendingTimer);
494 while(!list_empty(&pRxTS->RxPendingPktList))
496 // PlatformAcquireSpinLock(Adapter, RT_RX_SPINLOCK);
497 spin_lock_irqsave(&(ieee->reorder_spinlock), flags);
498 //pRxReorderEntry = list_entry(&pRxTS->RxPendingPktList.prev,RX_REORDER_ENTRY,List);
499 pRxReorderEntry = (PRX_REORDER_ENTRY)list_entry(pRxTS->RxPendingPktList.prev,RX_REORDER_ENTRY,List);
500 list_del_init(&pRxReorderEntry->List);
503 struct ieee80211_rxb * prxb = pRxReorderEntry->prxb;
506 spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
509 for(i =0; i < prxb->nr_subframes; i++) {
510 dev_kfree_skb(prxb->subframes[i]);
515 list_add_tail(&pRxReorderEntry->List,&ieee->RxReorder_Unused_List);
516 //PlatformReleaseSpinLock(Adapter, RT_RX_SPINLOCK);
517 spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
524 PTX_TS_RECORD pTxTS = (PTX_TS_RECORD)pTs;
525 del_timer_sync(&pTxTS->TsAddBaTimer);
529 void RemovePeerTS(struct ieee80211_device* ieee, u8* Addr)
531 PTS_COMMON_INFO pTS, pTmpTS;
533 printk("===========>RemovePeerTS,%pM\n", Addr);
534 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List)
536 if (memcmp(pTS->Addr, Addr, 6) == 0)
538 RemoveTsEntry(ieee, pTS, TX_DIR);
539 list_del_init(&pTS->List);
540 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
544 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List)
546 if (memcmp(pTS->Addr, Addr, 6) == 0)
548 printk("====>remove Tx_TS_admin_list\n");
549 RemoveTsEntry(ieee, pTS, TX_DIR);
550 list_del_init(&pTS->List);
551 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
555 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List)
557 if (memcmp(pTS->Addr, Addr, 6) == 0)
559 RemoveTsEntry(ieee, pTS, RX_DIR);
560 list_del_init(&pTS->List);
561 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
565 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List)
567 if (memcmp(pTS->Addr, Addr, 6) == 0)
569 RemoveTsEntry(ieee, pTS, RX_DIR);
570 list_del_init(&pTS->List);
571 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
576 void RemoveAllTS(struct ieee80211_device* ieee)
578 PTS_COMMON_INFO pTS, pTmpTS;
580 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List)
582 RemoveTsEntry(ieee, pTS, TX_DIR);
583 list_del_init(&pTS->List);
584 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
587 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List)
589 RemoveTsEntry(ieee, pTS, TX_DIR);
590 list_del_init(&pTS->List);
591 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
594 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List)
596 RemoveTsEntry(ieee, pTS, RX_DIR);
597 list_del_init(&pTS->List);
598 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
601 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List)
603 RemoveTsEntry(ieee, pTS, RX_DIR);
604 list_del_init(&pTS->List);
605 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
609 void TsStartAddBaProcess(struct ieee80211_device* ieee, PTX_TS_RECORD pTxTS)
611 if(pTxTS->bAddBaReqInProgress == false)
613 pTxTS->bAddBaReqInProgress = true;
614 if(pTxTS->bAddBaReqDelayed)
616 IEEE80211_DEBUG(IEEE80211_DL_BA, "TsStartAddBaProcess(): Delayed Start ADDBA after 60 sec!!\n");
617 mod_timer(&pTxTS->TsAddBaTimer, jiffies + MSECS(TS_ADDBA_DELAY));
621 IEEE80211_DEBUG(IEEE80211_DL_BA,"TsStartAddBaProcess(): Immediately Start ADDBA now!!\n");
622 mod_timer(&pTxTS->TsAddBaTimer, jiffies+10); //set 10 ticks
626 IEEE80211_DEBUG(IEEE80211_DL_ERR, "%s()==>BA timer is already added\n", __FUNCTION__);