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",__func__);
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 eth_zero_addr(pTsCommonInfo->Addr);
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", __func__);
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 setup_timer(&pTxTS->TsCommonInfo.SetupTimer, TsSetupTimeOut,
160 (unsigned long)pTxTS);
161 setup_timer(&pTxTS->TsCommonInfo.InactTimer, TsInactTimeout,
162 (unsigned long)pTxTS);
163 setup_timer(&pTxTS->TsAddBaTimer, TsAddBaProcess,
164 (unsigned long)pTxTS);
165 setup_timer(&pTxTS->TxPendingBARecord.Timer, BaSetupTimeOut,
166 (unsigned long)pTxTS);
167 setup_timer(&pTxTS->TxAdmittedBARecord.Timer,
168 TxBaInactTimeout, (unsigned long)pTxTS);
169 ResetTxTsEntry(pTxTS);
170 list_add_tail(&pTxTS->TsCommonInfo.List, &ieee->Tx_TS_Unused_List);
174 // Initialize Rx TS related info.
175 INIT_LIST_HEAD(&ieee->Rx_TS_Admit_List);
176 INIT_LIST_HEAD(&ieee->Rx_TS_Pending_List);
177 INIT_LIST_HEAD(&ieee->Rx_TS_Unused_List);
178 for(count = 0; count < TOTAL_TS_NUM; count++)
181 INIT_LIST_HEAD(&pRxTS->RxPendingPktList);
182 setup_timer(&pRxTS->TsCommonInfo.SetupTimer, TsSetupTimeOut,
183 (unsigned long)pRxTS);
184 setup_timer(&pRxTS->TsCommonInfo.InactTimer, TsInactTimeout,
185 (unsigned long)pRxTS);
186 setup_timer(&pRxTS->RxAdmittedBARecord.Timer,
187 RxBaInactTimeout, (unsigned long)pRxTS);
188 setup_timer(&pRxTS->RxPktPendingTimer, RxPktPendingTimeout,
189 (unsigned long)pRxTS);
190 ResetRxTsEntry(pRxTS);
191 list_add_tail(&pRxTS->TsCommonInfo.List, &ieee->Rx_TS_Unused_List);
194 // Initialize unused Rx Reorder List.
195 INIT_LIST_HEAD(&ieee->RxReorder_Unused_List);
197 for(count = 0; count < REORDER_ENTRY_NUM; count++)
199 list_add_tail( &pRxReorderEntry->List,&ieee->RxReorder_Unused_List);
200 if(count == (REORDER_ENTRY_NUM-1))
202 pRxReorderEntry = &ieee->RxReorderEntry[count+1];
208 static void AdmitTS(struct ieee80211_device *ieee,
209 PTS_COMMON_INFO pTsCommonInfo, u32 InactTime)
211 del_timer_sync(&pTsCommonInfo->SetupTimer);
212 del_timer_sync(&pTsCommonInfo->InactTimer);
215 mod_timer(&pTsCommonInfo->InactTimer, jiffies + MSECS(InactTime));
219 static PTS_COMMON_INFO SearchAdmitTRStream(struct ieee80211_device *ieee,
221 TR_SELECT TxRxSelect)
223 //DIRECTION_VALUE dir;
225 bool search_dir[4] = {0};
226 struct list_head *psearch_list; //FIXME
227 PTS_COMMON_INFO pRet = NULL;
228 if(ieee->iw_mode == IW_MODE_MASTER) //ap mode
230 if(TxRxSelect == TX_DIR)
232 search_dir[DIR_DOWN] = true;
233 search_dir[DIR_BI_DIR]= true;
237 search_dir[DIR_UP] = true;
238 search_dir[DIR_BI_DIR]= true;
241 else if(ieee->iw_mode == IW_MODE_ADHOC)
243 if(TxRxSelect == TX_DIR)
244 search_dir[DIR_UP] = true;
246 search_dir[DIR_DOWN] = true;
250 if(TxRxSelect == TX_DIR)
252 search_dir[DIR_UP] = true;
253 search_dir[DIR_BI_DIR]= true;
254 search_dir[DIR_DIRECT]= true;
258 search_dir[DIR_DOWN] = true;
259 search_dir[DIR_BI_DIR]= true;
260 search_dir[DIR_DIRECT]= true;
264 if(TxRxSelect == TX_DIR)
265 psearch_list = &ieee->Tx_TS_Admit_List;
267 psearch_list = &ieee->Rx_TS_Admit_List;
269 //for(dir = DIR_UP; dir <= DIR_BI_DIR; dir++)
270 for(dir = 0; dir <= DIR_BI_DIR; dir++)
272 if (!search_dir[dir])
274 list_for_each_entry(pRet, psearch_list, List){
275 // 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);
276 if (memcmp(pRet->Addr, Addr, 6) == 0)
277 if (pRet->TSpec.f.TSInfo.field.ucTSID == TID)
278 if(pRet->TSpec.f.TSInfo.field.ucDirection == dir)
280 // printk("Bingo! got it\n");
285 if(&pRet->List != psearch_list)
289 if(&pRet->List != psearch_list){
296 static void MakeTSEntry(PTS_COMMON_INFO pTsCommonInfo, u8 *Addr,
297 PTSPEC_BODY pTSPEC, PQOS_TCLAS pTCLAS, u8 TCLAS_Num,
302 if(pTsCommonInfo == NULL)
305 memcpy(pTsCommonInfo->Addr, Addr, 6);
308 memcpy((u8 *)(&(pTsCommonInfo->TSpec)), (u8 *)pTSPEC, sizeof(TSPEC_BODY));
310 for(count = 0; count < TCLAS_Num; count++)
311 memcpy((u8 *)(&(pTsCommonInfo->TClass[count])), (u8 *)pTCLAS, sizeof(QOS_TCLAS));
313 pTsCommonInfo->TClasProc = TCLAS_Proc;
314 pTsCommonInfo->TClasNum = TCLAS_Num;
319 struct ieee80211_device *ieee,
320 PTS_COMMON_INFO *ppTS,
323 TR_SELECT TxRxSelect, //Rx:1, Tx:0
329 // We do not build any TS for Broadcast or Multicast stream.
330 // So reject these kinds of search here.
332 if (is_multicast_ether_addr(Addr))
334 IEEE80211_DEBUG(IEEE80211_DL_ERR, "get TS for Broadcast or Multicast\n");
338 if (ieee->current_network.qos_data.supported == 0)
342 // In WMM case: we use 4 TID only
345 IEEE80211_DEBUG(IEEE80211_DL_ERR, " in %s(), TID(%d) is not valid\n", __func__, TID);
373 *ppTS = SearchAdmitTRStream(
385 IEEE80211_DEBUG(IEEE80211_DL_TS, "add new TS failed(tid:%d)\n", UP);
391 // Create a new Traffic stream for current Tx/Rx
392 // This is for EDCA and WMM to add a new TS.
393 // For HCCA or WMMSA, TS cannot be addmit without negotiation.
396 PQOS_TSINFO pTSInfo = &TSpec.f.TSInfo;
397 struct list_head *pUnusedList =
398 (TxRxSelect == TX_DIR)?
399 (&ieee->Tx_TS_Unused_List):
400 (&ieee->Rx_TS_Unused_List);
402 struct list_head *pAddmitList =
403 (TxRxSelect == TX_DIR)?
404 (&ieee->Tx_TS_Admit_List):
405 (&ieee->Rx_TS_Admit_List);
407 DIRECTION_VALUE Dir = (ieee->iw_mode == IW_MODE_MASTER)?
408 ((TxRxSelect==TX_DIR)?DIR_DOWN:DIR_UP):
409 ((TxRxSelect==TX_DIR)?DIR_UP:DIR_DOWN);
410 IEEE80211_DEBUG(IEEE80211_DL_TS, "to add Ts\n");
411 if(!list_empty(pUnusedList))
413 (*ppTS) = list_entry(pUnusedList->next, TS_COMMON_INFO, List);
414 list_del_init(&(*ppTS)->List);
415 if(TxRxSelect==TX_DIR)
417 PTX_TS_RECORD tmp = container_of(*ppTS, TX_TS_RECORD, TsCommonInfo);
421 PRX_TS_RECORD tmp = container_of(*ppTS, RX_TS_RECORD, TsCommonInfo);
425 IEEE80211_DEBUG(IEEE80211_DL_TS, "to init current TS, UP:%d, Dir:%d, addr:%pM\n", UP, Dir, Addr);
426 // Prepare TS Info releated field
427 pTSInfo->field.ucTrafficType = 0; // Traffic type: WMM is reserved in this field
428 pTSInfo->field.ucTSID = UP; // TSID
429 pTSInfo->field.ucDirection = Dir; // Direction: if there is DirectLink, this need additional consideration.
430 pTSInfo->field.ucAccessPolicy = 1; // Access policy
431 pTSInfo->field.ucAggregation = 0; // Aggregation
432 pTSInfo->field.ucPSB = 0; // Aggregation
433 pTSInfo->field.ucUP = UP; // User priority
434 pTSInfo->field.ucTSInfoAckPolicy = 0; // Ack policy
435 pTSInfo->field.ucSchedule = 0; // Schedule
437 MakeTSEntry(*ppTS, Addr, &TSpec, NULL, 0, 0);
438 AdmitTS(ieee, *ppTS, 0);
439 list_add_tail(&((*ppTS)->List), pAddmitList);
440 // if there is DirectLink, we need to do additional operation here!!
446 IEEE80211_DEBUG(IEEE80211_DL_ERR, "in function %s() There is not enough TS record to be used!!", __func__);
453 static void RemoveTsEntry(struct ieee80211_device *ieee, PTS_COMMON_INFO pTs,
454 TR_SELECT TxRxSelect)
457 unsigned long flags = 0;
458 del_timer_sync(&pTs->SetupTimer);
459 del_timer_sync(&pTs->InactTimer);
460 TsInitDelBA(ieee, pTs, TxRxSelect);
462 if(TxRxSelect == RX_DIR)
465 PRX_REORDER_ENTRY pRxReorderEntry;
466 PRX_TS_RECORD pRxTS = (PRX_TS_RECORD)pTs;
467 if(timer_pending(&pRxTS->RxPktPendingTimer))
468 del_timer_sync(&pRxTS->RxPktPendingTimer);
470 while(!list_empty(&pRxTS->RxPendingPktList))
472 // PlatformAcquireSpinLock(Adapter, RT_RX_SPINLOCK);
473 spin_lock_irqsave(&(ieee->reorder_spinlock), flags);
474 //pRxReorderEntry = list_entry(&pRxTS->RxPendingPktList.prev,RX_REORDER_ENTRY,List);
475 pRxReorderEntry = (PRX_REORDER_ENTRY)list_entry(pRxTS->RxPendingPktList.prev,RX_REORDER_ENTRY,List);
476 list_del_init(&pRxReorderEntry->List);
479 struct ieee80211_rxb *prxb = pRxReorderEntry->prxb;
482 spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
485 for(i =0; i < prxb->nr_subframes; i++) {
486 dev_kfree_skb(prxb->subframes[i]);
491 list_add_tail(&pRxReorderEntry->List,&ieee->RxReorder_Unused_List);
492 //PlatformReleaseSpinLock(Adapter, RT_RX_SPINLOCK);
493 spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
500 PTX_TS_RECORD pTxTS = (PTX_TS_RECORD)pTs;
501 del_timer_sync(&pTxTS->TsAddBaTimer);
505 void RemovePeerTS(struct ieee80211_device *ieee, u8 *Addr)
507 PTS_COMMON_INFO pTS, pTmpTS;
509 printk("===========>RemovePeerTS,%pM\n", Addr);
510 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List)
512 if (memcmp(pTS->Addr, Addr, 6) == 0)
514 RemoveTsEntry(ieee, pTS, TX_DIR);
515 list_del_init(&pTS->List);
516 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
520 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List)
522 if (memcmp(pTS->Addr, Addr, 6) == 0)
524 printk("====>remove Tx_TS_admin_list\n");
525 RemoveTsEntry(ieee, pTS, TX_DIR);
526 list_del_init(&pTS->List);
527 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
531 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List)
533 if (memcmp(pTS->Addr, Addr, 6) == 0)
535 RemoveTsEntry(ieee, pTS, RX_DIR);
536 list_del_init(&pTS->List);
537 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
541 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List)
543 if (memcmp(pTS->Addr, Addr, 6) == 0)
545 RemoveTsEntry(ieee, pTS, RX_DIR);
546 list_del_init(&pTS->List);
547 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
552 void RemoveAllTS(struct ieee80211_device *ieee)
554 PTS_COMMON_INFO pTS, pTmpTS;
556 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List)
558 RemoveTsEntry(ieee, pTS, TX_DIR);
559 list_del_init(&pTS->List);
560 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
563 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List)
565 RemoveTsEntry(ieee, pTS, TX_DIR);
566 list_del_init(&pTS->List);
567 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
570 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List)
572 RemoveTsEntry(ieee, pTS, RX_DIR);
573 list_del_init(&pTS->List);
574 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
577 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List)
579 RemoveTsEntry(ieee, pTS, RX_DIR);
580 list_del_init(&pTS->List);
581 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
585 void TsStartAddBaProcess(struct ieee80211_device *ieee, PTX_TS_RECORD pTxTS)
587 if(!pTxTS->bAddBaReqInProgress)
589 pTxTS->bAddBaReqInProgress = true;
590 if(pTxTS->bAddBaReqDelayed)
592 IEEE80211_DEBUG(IEEE80211_DL_BA, "TsStartAddBaProcess(): Delayed Start ADDBA after 60 sec!!\n");
593 mod_timer(&pTxTS->TsAddBaTimer, jiffies + MSECS(TS_ADDBA_DELAY));
597 IEEE80211_DEBUG(IEEE80211_DL_BA,"TsStartAddBaProcess(): Immediately Start ADDBA now!!\n");
598 mod_timer(&pTxTS->TsAddBaTimer, jiffies+10); //set 10 ticks
602 IEEE80211_DEBUG(IEEE80211_DL_ERR, "%s()==>BA timer is already added\n", __func__);