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
)
296 // printk("Bingo! got it\n");
301 if(&pRet
->List
!= psearch_list
)
305 if(&pRet
->List
!= psearch_list
){
313 PTS_COMMON_INFO pTsCommonInfo
,
323 if(pTsCommonInfo
== NULL
)
326 memcpy(pTsCommonInfo
->Addr
, Addr
, 6);
329 memcpy((u8
*)(&(pTsCommonInfo
->TSpec
)), (u8
*)pTSPEC
, sizeof(TSPEC_BODY
));
331 for(count
= 0; count
< TCLAS_Num
; count
++)
332 memcpy((u8
*)(&(pTsCommonInfo
->TClass
[count
])), (u8
*)pTCLAS
, sizeof(QOS_TCLAS
));
334 pTsCommonInfo
->TClasProc
= TCLAS_Proc
;
335 pTsCommonInfo
->TClasNum
= TCLAS_Num
;
340 struct ieee80211_device
*ieee
,
341 PTS_COMMON_INFO
*ppTS
,
344 TR_SELECT TxRxSelect
, //Rx:1, Tx:0
350 // We do not build any TS for Broadcast or Multicast stream.
351 // So reject these kinds of search here.
353 if (is_multicast_ether_addr(Addr
))
355 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "get TS for Broadcast or Multicast\n");
359 if (ieee
->current_network
.qos_data
.supported
== 0)
363 // In WMM case: we use 4 TID only
366 IEEE80211_DEBUG(IEEE80211_DL_ERR
, " in %s(), TID(%d) is not valid\n", __FUNCTION__
, TID
);
394 *ppTS
= SearchAdmitTRStream(
405 if(bAddNewTs
== false)
407 IEEE80211_DEBUG(IEEE80211_DL_TS
, "add new TS failed(tid:%d)\n", UP
);
413 // Create a new Traffic stream for current Tx/Rx
414 // This is for EDCA and WMM to add a new TS.
415 // For HCCA or WMMSA, TS cannot be addmit without negotiation.
418 PQOS_TSINFO pTSInfo
= &TSpec
.f
.TSInfo
;
419 struct list_head
*pUnusedList
=
420 (TxRxSelect
== TX_DIR
)?
421 (&ieee
->Tx_TS_Unused_List
):
422 (&ieee
->Rx_TS_Unused_List
);
424 struct list_head
*pAddmitList
=
425 (TxRxSelect
== TX_DIR
)?
426 (&ieee
->Tx_TS_Admit_List
):
427 (&ieee
->Rx_TS_Admit_List
);
429 DIRECTION_VALUE Dir
= (ieee
->iw_mode
== IW_MODE_MASTER
)?
430 ((TxRxSelect
==TX_DIR
)?DIR_DOWN
:DIR_UP
):
431 ((TxRxSelect
==TX_DIR
)?DIR_UP
:DIR_DOWN
);
432 IEEE80211_DEBUG(IEEE80211_DL_TS
, "to add Ts\n");
433 if(!list_empty(pUnusedList
))
435 (*ppTS
) = list_entry(pUnusedList
->next
, TS_COMMON_INFO
, List
);
436 list_del_init(&(*ppTS
)->List
);
437 if(TxRxSelect
==TX_DIR
)
439 PTX_TS_RECORD tmp
= container_of(*ppTS
, TX_TS_RECORD
, TsCommonInfo
);
443 PRX_TS_RECORD tmp
= container_of(*ppTS
, RX_TS_RECORD
, TsCommonInfo
);
447 IEEE80211_DEBUG(IEEE80211_DL_TS
, "to init current TS, UP:%d, Dir:%d, addr:%pM\n", UP
, Dir
, Addr
);
448 // Prepare TS Info releated field
449 pTSInfo
->field
.ucTrafficType
= 0; // Traffic type: WMM is reserved in this field
450 pTSInfo
->field
.ucTSID
= UP
; // TSID
451 pTSInfo
->field
.ucDirection
= Dir
; // Direction: if there is DirectLink, this need additional consideration.
452 pTSInfo
->field
.ucAccessPolicy
= 1; // Access policy
453 pTSInfo
->field
.ucAggregation
= 0; // Aggregation
454 pTSInfo
->field
.ucPSB
= 0; // Aggregation
455 pTSInfo
->field
.ucUP
= UP
; // User priority
456 pTSInfo
->field
.ucTSInfoAckPolicy
= 0; // Ack policy
457 pTSInfo
->field
.ucSchedule
= 0; // Schedule
459 MakeTSEntry(*ppTS
, Addr
, &TSpec
, NULL
, 0, 0);
460 AdmitTS(ieee
, *ppTS
, 0);
461 list_add_tail(&((*ppTS
)->List
), pAddmitList
);
462 // if there is DirectLink, we need to do additional operation here!!
468 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "in function %s() There is not enough TS record to be used!!", __FUNCTION__
);
476 struct ieee80211_device
*ieee
,
482 unsigned long flags
= 0;
483 del_timer_sync(&pTs
->SetupTimer
);
484 del_timer_sync(&pTs
->InactTimer
);
485 TsInitDelBA(ieee
, pTs
, TxRxSelect
);
487 if(TxRxSelect
== RX_DIR
)
490 PRX_REORDER_ENTRY pRxReorderEntry
;
491 PRX_TS_RECORD pRxTS
= (PRX_TS_RECORD
)pTs
;
492 if(timer_pending(&pRxTS
->RxPktPendingTimer
))
493 del_timer_sync(&pRxTS
->RxPktPendingTimer
);
495 while(!list_empty(&pRxTS
->RxPendingPktList
))
497 // PlatformAcquireSpinLock(Adapter, RT_RX_SPINLOCK);
498 spin_lock_irqsave(&(ieee
->reorder_spinlock
), flags
);
499 //pRxReorderEntry = list_entry(&pRxTS->RxPendingPktList.prev,RX_REORDER_ENTRY,List);
500 pRxReorderEntry
= (PRX_REORDER_ENTRY
)list_entry(pRxTS
->RxPendingPktList
.prev
,RX_REORDER_ENTRY
,List
);
501 list_del_init(&pRxReorderEntry
->List
);
504 struct ieee80211_rxb
*prxb
= pRxReorderEntry
->prxb
;
507 spin_unlock_irqrestore(&(ieee
->reorder_spinlock
), flags
);
510 for(i
=0; i
< prxb
->nr_subframes
; i
++) {
511 dev_kfree_skb(prxb
->subframes
[i
]);
516 list_add_tail(&pRxReorderEntry
->List
,&ieee
->RxReorder_Unused_List
);
517 //PlatformReleaseSpinLock(Adapter, RT_RX_SPINLOCK);
518 spin_unlock_irqrestore(&(ieee
->reorder_spinlock
), flags
);
525 PTX_TS_RECORD pTxTS
= (PTX_TS_RECORD
)pTs
;
526 del_timer_sync(&pTxTS
->TsAddBaTimer
);
530 void RemovePeerTS(struct ieee80211_device
*ieee
, u8
*Addr
)
532 PTS_COMMON_INFO pTS
, pTmpTS
;
534 printk("===========>RemovePeerTS,%pM\n", Addr
);
535 list_for_each_entry_safe(pTS
, pTmpTS
, &ieee
->Tx_TS_Pending_List
, List
)
537 if (memcmp(pTS
->Addr
, Addr
, 6) == 0)
539 RemoveTsEntry(ieee
, pTS
, TX_DIR
);
540 list_del_init(&pTS
->List
);
541 list_add_tail(&pTS
->List
, &ieee
->Tx_TS_Unused_List
);
545 list_for_each_entry_safe(pTS
, pTmpTS
, &ieee
->Tx_TS_Admit_List
, List
)
547 if (memcmp(pTS
->Addr
, Addr
, 6) == 0)
549 printk("====>remove Tx_TS_admin_list\n");
550 RemoveTsEntry(ieee
, pTS
, TX_DIR
);
551 list_del_init(&pTS
->List
);
552 list_add_tail(&pTS
->List
, &ieee
->Tx_TS_Unused_List
);
556 list_for_each_entry_safe(pTS
, pTmpTS
, &ieee
->Rx_TS_Pending_List
, List
)
558 if (memcmp(pTS
->Addr
, Addr
, 6) == 0)
560 RemoveTsEntry(ieee
, pTS
, RX_DIR
);
561 list_del_init(&pTS
->List
);
562 list_add_tail(&pTS
->List
, &ieee
->Rx_TS_Unused_List
);
566 list_for_each_entry_safe(pTS
, pTmpTS
, &ieee
->Rx_TS_Admit_List
, List
)
568 if (memcmp(pTS
->Addr
, Addr
, 6) == 0)
570 RemoveTsEntry(ieee
, pTS
, RX_DIR
);
571 list_del_init(&pTS
->List
);
572 list_add_tail(&pTS
->List
, &ieee
->Rx_TS_Unused_List
);
577 void RemoveAllTS(struct ieee80211_device
*ieee
)
579 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__
);