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 if(timer_pending(&pRxTs->RxPktPendingTimer))
91 del_timer_sync(&pRxTs->RxPktPendingTimer);
92 pRxTs->RxPktPendingTimer.expires = jiffies + ieee->pHTInfo->RxReorderPendingTime;
93 add_timer(&pRxTs->RxPktPendingTimer);
95 spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
96 //PlatformReleaseSpinLock(Adapter, RT_RX_SPINLOCK);
99 /********************************************************************************************************************
100 *function: Add BA timer function
101 * input: unsigned long data //acturally we send TX_TS_RECORD or RX_TS_RECORD to these timer
104 ********************************************************************************************************************/
105 void TsAddBaProcess(unsigned long data)
107 PTX_TS_RECORD pTxTs = (PTX_TS_RECORD)data;
109 struct ieee80211_device *ieee = container_of(pTxTs, struct ieee80211_device, TxTsRecord[num]);
111 TsInitAddBA(ieee, pTxTs, BA_POLICY_IMMEDIATE, false);
112 IEEE80211_DEBUG(IEEE80211_DL_BA, "TsAddBaProcess(): ADDBA Req is started!! \n");
116 void ResetTsCommonInfo(PTS_COMMON_INFO pTsCommonInfo)
118 memset(pTsCommonInfo->Addr, 0, 6);
119 memset(&pTsCommonInfo->TSpec, 0, sizeof(TSPEC_BODY));
120 memset(&pTsCommonInfo->TClass, 0, sizeof(QOS_TCLAS)*TCLAS_NUM);
121 pTsCommonInfo->TClasProc = 0;
122 pTsCommonInfo->TClasNum = 0;
125 void ResetTxTsEntry(PTX_TS_RECORD pTS)
127 ResetTsCommonInfo(&pTS->TsCommonInfo);
129 pTS->bAddBaReqInProgress = false;
130 pTS->bAddBaReqDelayed = false;
131 pTS->bUsingBa = false;
132 ResetBaEntry(&pTS->TxAdmittedBARecord); //For BA Originator
133 ResetBaEntry(&pTS->TxPendingBARecord);
136 void ResetRxTsEntry(PRX_TS_RECORD pTS)
138 ResetTsCommonInfo(&pTS->TsCommonInfo);
139 pTS->RxIndicateSeq = 0xffff; // This indicate the RxIndicateSeq is not used now!!
140 pTS->RxTimeoutIndicateSeq = 0xffff; // This indicate the RxTimeoutIndicateSeq is not used now!!
141 ResetBaEntry(&pTS->RxAdmittedBARecord); // For BA Recepient
144 void TSInitialize(struct ieee80211_device *ieee)
146 PTX_TS_RECORD pTxTS = ieee->TxTsRecord;
147 PRX_TS_RECORD pRxTS = ieee->RxTsRecord;
148 PRX_REORDER_ENTRY pRxReorderEntry = ieee->RxReorderEntry;
150 IEEE80211_DEBUG(IEEE80211_DL_TS, "==========>%s()\n", __FUNCTION__);
151 // Initialize Tx TS related info.
152 INIT_LIST_HEAD(&ieee->Tx_TS_Admit_List);
153 INIT_LIST_HEAD(&ieee->Tx_TS_Pending_List);
154 INIT_LIST_HEAD(&ieee->Tx_TS_Unused_List);
156 for(count = 0; count < TOTAL_TS_NUM; count++)
160 // The timers for the operation of Traffic Stream and Block Ack.
161 // DLS related timer will be add here in the future!!
162 init_timer(&pTxTS->TsCommonInfo.SetupTimer);
163 pTxTS->TsCommonInfo.SetupTimer.data = (unsigned long)pTxTS;
164 pTxTS->TsCommonInfo.SetupTimer.function = TsSetupTimeOut;
166 init_timer(&pTxTS->TsCommonInfo.InactTimer);
167 pTxTS->TsCommonInfo.InactTimer.data = (unsigned long)pTxTS;
168 pTxTS->TsCommonInfo.InactTimer.function = TsInactTimeout;
170 init_timer(&pTxTS->TsAddBaTimer);
171 pTxTS->TsAddBaTimer.data = (unsigned long)pTxTS;
172 pTxTS->TsAddBaTimer.function = TsAddBaProcess;
174 init_timer(&pTxTS->TxPendingBARecord.Timer);
175 pTxTS->TxPendingBARecord.Timer.data = (unsigned long)pTxTS;
176 pTxTS->TxPendingBARecord.Timer.function = BaSetupTimeOut;
178 init_timer(&pTxTS->TxAdmittedBARecord.Timer);
179 pTxTS->TxAdmittedBARecord.Timer.data = (unsigned long)pTxTS;
180 pTxTS->TxAdmittedBARecord.Timer.function = TxBaInactTimeout;
182 ResetTxTsEntry(pTxTS);
183 list_add_tail(&pTxTS->TsCommonInfo.List, &ieee->Tx_TS_Unused_List);
187 // Initialize Rx TS related info.
188 INIT_LIST_HEAD(&ieee->Rx_TS_Admit_List);
189 INIT_LIST_HEAD(&ieee->Rx_TS_Pending_List);
190 INIT_LIST_HEAD(&ieee->Rx_TS_Unused_List);
191 for(count = 0; count < TOTAL_TS_NUM; count++)
194 INIT_LIST_HEAD(&pRxTS->RxPendingPktList);
196 init_timer(&pRxTS->TsCommonInfo.SetupTimer);
197 pRxTS->TsCommonInfo.SetupTimer.data = (unsigned long)pRxTS;
198 pRxTS->TsCommonInfo.SetupTimer.function = TsSetupTimeOut;
200 init_timer(&pRxTS->TsCommonInfo.InactTimer);
201 pRxTS->TsCommonInfo.InactTimer.data = (unsigned long)pRxTS;
202 pRxTS->TsCommonInfo.InactTimer.function = TsInactTimeout;
204 init_timer(&pRxTS->RxAdmittedBARecord.Timer);
205 pRxTS->RxAdmittedBARecord.Timer.data = (unsigned long)pRxTS;
206 pRxTS->RxAdmittedBARecord.Timer.function = RxBaInactTimeout;
208 init_timer(&pRxTS->RxPktPendingTimer);
209 pRxTS->RxPktPendingTimer.data = (unsigned long)pRxTS;
210 pRxTS->RxPktPendingTimer.function = RxPktPendingTimeout;
212 ResetRxTsEntry(pRxTS);
213 list_add_tail(&pRxTS->TsCommonInfo.List, &ieee->Rx_TS_Unused_List);
216 // Initialize unused Rx Reorder List.
217 INIT_LIST_HEAD(&ieee->RxReorder_Unused_List);
219 for(count = 0; count < REORDER_ENTRY_NUM; count++)
221 list_add_tail( &pRxReorderEntry->List,&ieee->RxReorder_Unused_List);
222 if(count == (REORDER_ENTRY_NUM-1))
224 pRxReorderEntry = &ieee->RxReorderEntry[count+1];
230 void AdmitTS(struct ieee80211_device *ieee, PTS_COMMON_INFO pTsCommonInfo, u32 InactTime)
232 del_timer_sync(&pTsCommonInfo->SetupTimer);
233 del_timer_sync(&pTsCommonInfo->InactTimer);
236 mod_timer(&pTsCommonInfo->InactTimer, jiffies + MSECS(InactTime));
240 PTS_COMMON_INFO SearchAdmitTRStream(struct ieee80211_device *ieee, u8* Addr, u8 TID, TR_SELECT TxRxSelect)
242 //DIRECTION_VALUE dir;
244 bool search_dir[4] = {0, 0, 0, 0};
245 struct list_head* psearch_list; //FIXME
246 PTS_COMMON_INFO pRet = NULL;
247 if(ieee->iw_mode == IW_MODE_MASTER) //ap mode
249 if(TxRxSelect == TX_DIR)
251 search_dir[DIR_DOWN] = true;
252 search_dir[DIR_BI_DIR]= true;
256 search_dir[DIR_UP] = true;
257 search_dir[DIR_BI_DIR]= true;
260 else if(ieee->iw_mode == IW_MODE_ADHOC)
262 if(TxRxSelect == TX_DIR)
263 search_dir[DIR_UP] = true;
265 search_dir[DIR_DOWN] = true;
269 if(TxRxSelect == TX_DIR)
271 search_dir[DIR_UP] = true;
272 search_dir[DIR_BI_DIR]= true;
273 search_dir[DIR_DIRECT]= true;
277 search_dir[DIR_DOWN] = true;
278 search_dir[DIR_BI_DIR]= true;
279 search_dir[DIR_DIRECT]= true;
283 if(TxRxSelect == TX_DIR)
284 psearch_list = &ieee->Tx_TS_Admit_List;
286 psearch_list = &ieee->Rx_TS_Admit_List;
288 //for(dir = DIR_UP; dir <= DIR_BI_DIR; dir++)
289 for(dir = 0; dir <= DIR_BI_DIR; dir++)
291 if(search_dir[dir] ==false )
293 list_for_each_entry(pRet, psearch_list, List){
294 // 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);
295 if (memcmp(pRet->Addr, Addr, 6) == 0)
296 if (pRet->TSpec.f.TSInfo.field.ucTSID == TID)
297 if(pRet->TSpec.f.TSInfo.field.ucDirection == dir)
299 // printk("Bingo! got it\n");
304 if(&pRet->List != psearch_list)
308 if(&pRet->List != psearch_list){
316 PTS_COMMON_INFO pTsCommonInfo,
326 if(pTsCommonInfo == NULL)
329 memcpy(pTsCommonInfo->Addr, Addr, 6);
332 memcpy((u8*)(&(pTsCommonInfo->TSpec)), (u8*)pTSPEC, sizeof(TSPEC_BODY));
334 for(count = 0; count < TCLAS_Num; count++)
335 memcpy((u8*)(&(pTsCommonInfo->TClass[count])), (u8*)pTCLAS, sizeof(QOS_TCLAS));
337 pTsCommonInfo->TClasProc = TCLAS_Proc;
338 pTsCommonInfo->TClasNum = TCLAS_Num;
343 struct ieee80211_device* ieee,
344 PTS_COMMON_INFO *ppTS,
347 TR_SELECT TxRxSelect, //Rx:1, Tx:0
353 // We do not build any TS for Broadcast or Multicast stream.
354 // So reject these kinds of search here.
356 if(is_broadcast_ether_addr(Addr) || is_multicast_ether_addr(Addr))
358 IEEE80211_DEBUG(IEEE80211_DL_ERR, "get TS for Broadcast or Multicast\n");
361 if (ieee->current_network.qos_data.supported == 0)
365 // In WMM case: we use 4 TID only
368 IEEE80211_DEBUG(IEEE80211_DL_ERR, " in %s(), TID(%d) is not valid\n", __FUNCTION__, TID);
396 *ppTS = SearchAdmitTRStream(
407 if(bAddNewTs == false)
409 IEEE80211_DEBUG(IEEE80211_DL_TS, "add new TS failed(tid:%d)\n", UP);
415 // Create a new Traffic stream for current Tx/Rx
416 // This is for EDCA and WMM to add a new TS.
417 // For HCCA or WMMSA, TS cannot be addmit without negotiation.
420 PQOS_TSINFO pTSInfo = &TSpec.f.TSInfo;
421 struct list_head* pUnusedList =
422 (TxRxSelect == TX_DIR)?
423 (&ieee->Tx_TS_Unused_List):
424 (&ieee->Rx_TS_Unused_List);
426 struct list_head* pAddmitList =
427 (TxRxSelect == TX_DIR)?
428 (&ieee->Tx_TS_Admit_List):
429 (&ieee->Rx_TS_Admit_List);
431 DIRECTION_VALUE Dir = (ieee->iw_mode == IW_MODE_MASTER)?
432 ((TxRxSelect==TX_DIR)?DIR_DOWN:DIR_UP):
433 ((TxRxSelect==TX_DIR)?DIR_UP:DIR_DOWN);
434 IEEE80211_DEBUG(IEEE80211_DL_TS, "to add Ts\n");
435 if(!list_empty(pUnusedList))
437 (*ppTS) = list_entry(pUnusedList->next, TS_COMMON_INFO, List);
438 list_del_init(&(*ppTS)->List);
439 if(TxRxSelect==TX_DIR)
441 PTX_TS_RECORD tmp = container_of(*ppTS, TX_TS_RECORD, TsCommonInfo);
445 PRX_TS_RECORD tmp = container_of(*ppTS, RX_TS_RECORD, TsCommonInfo);
449 IEEE80211_DEBUG(IEEE80211_DL_TS, "to init current TS, UP:%d, Dir:%d, addr:%pM\n", UP, Dir, Addr);
450 // Prepare TS Info releated field
451 pTSInfo->field.ucTrafficType = 0; // Traffic type: WMM is reserved in this field
452 pTSInfo->field.ucTSID = UP; // TSID
453 pTSInfo->field.ucDirection = Dir; // Direction: if there is DirectLink, this need additional consideration.
454 pTSInfo->field.ucAccessPolicy = 1; // Access policy
455 pTSInfo->field.ucAggregation = 0; // Aggregation
456 pTSInfo->field.ucPSB = 0; // Aggregation
457 pTSInfo->field.ucUP = UP; // User priority
458 pTSInfo->field.ucTSInfoAckPolicy = 0; // Ack policy
459 pTSInfo->field.ucSchedule = 0; // Schedule
461 MakeTSEntry(*ppTS, Addr, &TSpec, NULL, 0, 0);
462 AdmitTS(ieee, *ppTS, 0);
463 list_add_tail(&((*ppTS)->List), pAddmitList);
464 // if there is DirectLink, we need to do additional operation here!!
470 IEEE80211_DEBUG(IEEE80211_DL_ERR, "in function %s() There is not enough TS record to be used!!", __FUNCTION__);
478 struct ieee80211_device* ieee,
484 unsigned long flags = 0;
485 del_timer_sync(&pTs->SetupTimer);
486 del_timer_sync(&pTs->InactTimer);
487 TsInitDelBA(ieee, pTs, TxRxSelect);
489 if(TxRxSelect == RX_DIR)
492 PRX_REORDER_ENTRY pRxReorderEntry;
493 PRX_TS_RECORD pRxTS = (PRX_TS_RECORD)pTs;
494 if(timer_pending(&pRxTS->RxPktPendingTimer))
495 del_timer_sync(&pRxTS->RxPktPendingTimer);
497 while(!list_empty(&pRxTS->RxPendingPktList))
499 // PlatformAcquireSpinLock(Adapter, RT_RX_SPINLOCK);
500 spin_lock_irqsave(&(ieee->reorder_spinlock), flags);
501 //pRxReorderEntry = list_entry(&pRxTS->RxPendingPktList.prev,RX_REORDER_ENTRY,List);
502 pRxReorderEntry = (PRX_REORDER_ENTRY)list_entry(pRxTS->RxPendingPktList.prev,RX_REORDER_ENTRY,List);
503 list_del_init(&pRxReorderEntry->List);
506 struct ieee80211_rxb * prxb = pRxReorderEntry->prxb;
509 spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
512 for(i =0; i < prxb->nr_subframes; i++) {
513 dev_kfree_skb(prxb->subframes[i]);
518 list_add_tail(&pRxReorderEntry->List,&ieee->RxReorder_Unused_List);
519 //PlatformReleaseSpinLock(Adapter, RT_RX_SPINLOCK);
520 spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
527 PTX_TS_RECORD pTxTS = (PTX_TS_RECORD)pTs;
528 del_timer_sync(&pTxTS->TsAddBaTimer);
532 void RemovePeerTS(struct ieee80211_device* ieee, u8* Addr)
534 PTS_COMMON_INFO pTS, pTmpTS;
535 printk("===========>RemovePeerTS,%pM\n", Addr);
536 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List)
538 if (memcmp(pTS->Addr, Addr, 6) == 0)
540 RemoveTsEntry(ieee, pTS, TX_DIR);
541 list_del_init(&pTS->List);
542 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
546 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List)
548 if (memcmp(pTS->Addr, Addr, 6) == 0)
550 printk("====>remove Tx_TS_admin_list\n");
551 RemoveTsEntry(ieee, pTS, TX_DIR);
552 list_del_init(&pTS->List);
553 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
557 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List)
559 if (memcmp(pTS->Addr, Addr, 6) == 0)
561 RemoveTsEntry(ieee, pTS, RX_DIR);
562 list_del_init(&pTS->List);
563 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
567 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List)
569 if (memcmp(pTS->Addr, Addr, 6) == 0)
571 RemoveTsEntry(ieee, pTS, RX_DIR);
572 list_del_init(&pTS->List);
573 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
578 void RemoveAllTS(struct ieee80211_device* ieee)
580 PTS_COMMON_INFO pTS, pTmpTS;
581 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List)
583 RemoveTsEntry(ieee, pTS, TX_DIR);
584 list_del_init(&pTS->List);
585 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
588 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List)
590 RemoveTsEntry(ieee, pTS, TX_DIR);
591 list_del_init(&pTS->List);
592 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
595 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List)
597 RemoveTsEntry(ieee, pTS, RX_DIR);
598 list_del_init(&pTS->List);
599 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
602 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List)
604 RemoveTsEntry(ieee, pTS, RX_DIR);
605 list_del_init(&pTS->List);
606 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
610 void TsStartAddBaProcess(struct ieee80211_device* ieee, PTX_TS_RECORD pTxTS)
612 if(pTxTS->bAddBaReqInProgress == false)
614 pTxTS->bAddBaReqInProgress = true;
615 if(pTxTS->bAddBaReqDelayed)
617 IEEE80211_DEBUG(IEEE80211_DL_BA, "TsStartAddBaProcess(): Delayed Start ADDBA after 60 sec!!\n");
618 mod_timer(&pTxTS->TsAddBaTimer, jiffies + MSECS(TS_ADDBA_DELAY));
622 IEEE80211_DEBUG(IEEE80211_DL_BA,"TsStartAddBaProcess(): Immediately Start ADDBA now!!\n");
623 mod_timer(&pTxTS->TsAddBaTimer, jiffies+10); //set 10 ticks
627 IEEE80211_DEBUG(IEEE80211_DL_ERR, "%s()==>BA timer is already added\n", __FUNCTION__);
629 EXPORT_SYMBOL(RemovePeerTS);