2 #include <linux/etherdevice.h>
3 #include <linux/slab.h>
4 #include "rtl819x_TS.h"
6 static void TsSetupTimeOut(unsigned long data)
9 // This is used for WMMSA and ACM , that would send ADDTSReq frame.
12 static 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 static 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 static 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 static 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 static 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 static 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 static void AdmitTS(struct ieee80211_device *ieee,
228 PTS_COMMON_INFO pTsCommonInfo, u32 InactTime)
230 del_timer_sync(&pTsCommonInfo->SetupTimer);
231 del_timer_sync(&pTsCommonInfo->InactTimer);
234 mod_timer(&pTsCommonInfo->InactTimer, jiffies + MSECS(InactTime));
238 static PTS_COMMON_INFO SearchAdmitTRStream(struct ieee80211_device *ieee,
240 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){
315 static void MakeTSEntry(PTS_COMMON_INFO pTsCommonInfo, u8 *Addr,
316 PTSPEC_BODY pTSPEC, PQOS_TCLAS pTCLAS, u8 TCLAS_Num,
321 if(pTsCommonInfo == NULL)
324 memcpy(pTsCommonInfo->Addr, Addr, 6);
327 memcpy((u8 *)(&(pTsCommonInfo->TSpec)), (u8 *)pTSPEC, sizeof(TSPEC_BODY));
329 for(count = 0; count < TCLAS_Num; count++)
330 memcpy((u8 *)(&(pTsCommonInfo->TClass[count])), (u8 *)pTCLAS, sizeof(QOS_TCLAS));
332 pTsCommonInfo->TClasProc = TCLAS_Proc;
333 pTsCommonInfo->TClasNum = TCLAS_Num;
338 struct ieee80211_device *ieee,
339 PTS_COMMON_INFO *ppTS,
342 TR_SELECT TxRxSelect, //Rx:1, Tx:0
348 // We do not build any TS for Broadcast or Multicast stream.
349 // So reject these kinds of search here.
351 if (is_multicast_ether_addr(Addr))
353 IEEE80211_DEBUG(IEEE80211_DL_ERR, "get TS for Broadcast or Multicast\n");
357 if (ieee->current_network.qos_data.supported == 0)
361 // In WMM case: we use 4 TID only
364 IEEE80211_DEBUG(IEEE80211_DL_ERR, " in %s(), TID(%d) is not valid\n", __FUNCTION__, TID);
392 *ppTS = SearchAdmitTRStream(
403 if(bAddNewTs == false)
405 IEEE80211_DEBUG(IEEE80211_DL_TS, "add new TS failed(tid:%d)\n", UP);
411 // Create a new Traffic stream for current Tx/Rx
412 // This is for EDCA and WMM to add a new TS.
413 // For HCCA or WMMSA, TS cannot be addmit without negotiation.
416 PQOS_TSINFO pTSInfo = &TSpec.f.TSInfo;
417 struct list_head *pUnusedList =
418 (TxRxSelect == TX_DIR)?
419 (&ieee->Tx_TS_Unused_List):
420 (&ieee->Rx_TS_Unused_List);
422 struct list_head *pAddmitList =
423 (TxRxSelect == TX_DIR)?
424 (&ieee->Tx_TS_Admit_List):
425 (&ieee->Rx_TS_Admit_List);
427 DIRECTION_VALUE Dir = (ieee->iw_mode == IW_MODE_MASTER)?
428 ((TxRxSelect==TX_DIR)?DIR_DOWN:DIR_UP):
429 ((TxRxSelect==TX_DIR)?DIR_UP:DIR_DOWN);
430 IEEE80211_DEBUG(IEEE80211_DL_TS, "to add Ts\n");
431 if(!list_empty(pUnusedList))
433 (*ppTS) = list_entry(pUnusedList->next, TS_COMMON_INFO, List);
434 list_del_init(&(*ppTS)->List);
435 if(TxRxSelect==TX_DIR)
437 PTX_TS_RECORD tmp = container_of(*ppTS, TX_TS_RECORD, TsCommonInfo);
441 PRX_TS_RECORD tmp = container_of(*ppTS, RX_TS_RECORD, TsCommonInfo);
445 IEEE80211_DEBUG(IEEE80211_DL_TS, "to init current TS, UP:%d, Dir:%d, addr:%pM\n", UP, Dir, Addr);
446 // Prepare TS Info releated field
447 pTSInfo->field.ucTrafficType = 0; // Traffic type: WMM is reserved in this field
448 pTSInfo->field.ucTSID = UP; // TSID
449 pTSInfo->field.ucDirection = Dir; // Direction: if there is DirectLink, this need additional consideration.
450 pTSInfo->field.ucAccessPolicy = 1; // Access policy
451 pTSInfo->field.ucAggregation = 0; // Aggregation
452 pTSInfo->field.ucPSB = 0; // Aggregation
453 pTSInfo->field.ucUP = UP; // User priority
454 pTSInfo->field.ucTSInfoAckPolicy = 0; // Ack policy
455 pTSInfo->field.ucSchedule = 0; // Schedule
457 MakeTSEntry(*ppTS, Addr, &TSpec, NULL, 0, 0);
458 AdmitTS(ieee, *ppTS, 0);
459 list_add_tail(&((*ppTS)->List), pAddmitList);
460 // if there is DirectLink, we need to do additional operation here!!
466 IEEE80211_DEBUG(IEEE80211_DL_ERR, "in function %s() There is not enough TS record to be used!!", __FUNCTION__);
473 static void RemoveTsEntry(struct ieee80211_device *ieee, PTS_COMMON_INFO pTs,
474 TR_SELECT TxRxSelect)
477 unsigned long flags = 0;
478 del_timer_sync(&pTs->SetupTimer);
479 del_timer_sync(&pTs->InactTimer);
480 TsInitDelBA(ieee, pTs, TxRxSelect);
482 if(TxRxSelect == RX_DIR)
485 PRX_REORDER_ENTRY pRxReorderEntry;
486 PRX_TS_RECORD pRxTS = (PRX_TS_RECORD)pTs;
487 if(timer_pending(&pRxTS->RxPktPendingTimer))
488 del_timer_sync(&pRxTS->RxPktPendingTimer);
490 while(!list_empty(&pRxTS->RxPendingPktList))
492 // PlatformAcquireSpinLock(Adapter, RT_RX_SPINLOCK);
493 spin_lock_irqsave(&(ieee->reorder_spinlock), flags);
494 //pRxReorderEntry = list_entry(&pRxTS->RxPendingPktList.prev,RX_REORDER_ENTRY,List);
495 pRxReorderEntry = (PRX_REORDER_ENTRY)list_entry(pRxTS->RxPendingPktList.prev,RX_REORDER_ENTRY,List);
496 list_del_init(&pRxReorderEntry->List);
499 struct ieee80211_rxb *prxb = pRxReorderEntry->prxb;
502 spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
505 for(i =0; i < prxb->nr_subframes; i++) {
506 dev_kfree_skb(prxb->subframes[i]);
511 list_add_tail(&pRxReorderEntry->List,&ieee->RxReorder_Unused_List);
512 //PlatformReleaseSpinLock(Adapter, RT_RX_SPINLOCK);
513 spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
520 PTX_TS_RECORD pTxTS = (PTX_TS_RECORD)pTs;
521 del_timer_sync(&pTxTS->TsAddBaTimer);
525 void RemovePeerTS(struct ieee80211_device *ieee, u8 *Addr)
527 PTS_COMMON_INFO pTS, pTmpTS;
529 printk("===========>RemovePeerTS,%pM\n", Addr);
530 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List)
532 if (memcmp(pTS->Addr, Addr, 6) == 0)
534 RemoveTsEntry(ieee, pTS, TX_DIR);
535 list_del_init(&pTS->List);
536 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
540 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List)
542 if (memcmp(pTS->Addr, Addr, 6) == 0)
544 printk("====>remove Tx_TS_admin_list\n");
545 RemoveTsEntry(ieee, pTS, TX_DIR);
546 list_del_init(&pTS->List);
547 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
551 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List)
553 if (memcmp(pTS->Addr, Addr, 6) == 0)
555 RemoveTsEntry(ieee, pTS, RX_DIR);
556 list_del_init(&pTS->List);
557 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
561 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List)
563 if (memcmp(pTS->Addr, Addr, 6) == 0)
565 RemoveTsEntry(ieee, pTS, RX_DIR);
566 list_del_init(&pTS->List);
567 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
572 void RemoveAllTS(struct ieee80211_device *ieee)
574 PTS_COMMON_INFO pTS, pTmpTS;
576 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List)
578 RemoveTsEntry(ieee, pTS, TX_DIR);
579 list_del_init(&pTS->List);
580 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
583 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List)
585 RemoveTsEntry(ieee, pTS, TX_DIR);
586 list_del_init(&pTS->List);
587 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
590 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List)
592 RemoveTsEntry(ieee, pTS, RX_DIR);
593 list_del_init(&pTS->List);
594 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
597 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List)
599 RemoveTsEntry(ieee, pTS, RX_DIR);
600 list_del_init(&pTS->List);
601 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
605 void TsStartAddBaProcess(struct ieee80211_device *ieee, PTX_TS_RECORD pTxTS)
607 if(pTxTS->bAddBaReqInProgress == false)
609 pTxTS->bAddBaReqInProgress = true;
610 if(pTxTS->bAddBaReqDelayed)
612 IEEE80211_DEBUG(IEEE80211_DL_BA, "TsStartAddBaProcess(): Delayed Start ADDBA after 60 sec!!\n");
613 mod_timer(&pTxTS->TsAddBaTimer, jiffies + MSECS(TS_ADDBA_DELAY));
617 IEEE80211_DEBUG(IEEE80211_DL_BA,"TsStartAddBaProcess(): Immediately Start ADDBA now!!\n");
618 mod_timer(&pTxTS->TsAddBaTimer, jiffies+10); //set 10 ticks
622 IEEE80211_DEBUG(IEEE80211_DL_ERR, "%s()==>BA timer is already added\n", __FUNCTION__);