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Staging: rt2860: remove dead QOS_DLS_SUPPORT code
[linux-2.6.git] / drivers / staging / rt2860 / common / ba_action.c
blob9f0b501db85394e4b264fe2e48af5e318f631eda
1 /*
2 *************************************************************************
3 * Ralink Tech Inc.
4 * 5F., No.36, Taiyuan St., Jhubei City,
5 * Hsinchu County 302,
6 * Taiwan, R.O.C.
7 *
8 * (c) Copyright 2002-2007, Ralink Technology, Inc.
9 *
10 * This program is free software; you can redistribute it and/or modify *
11 * it under the terms of the GNU General Public License as published by *
12 * the Free Software Foundation; either version 2 of the License, or *
13 * (at your option) any later version. *
14 * *
15 * This program is distributed in the hope that it will be useful, *
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
18 * GNU General Public License for more details. *
19 * *
20 * You should have received a copy of the GNU General Public License *
21 * along with this program; if not, write to the *
22 * Free Software Foundation, Inc., *
23 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
24 * *
25 *************************************************************************
26 */
27
28 #ifdef DOT11_N_SUPPORT
29
30 #include "../rt_config.h"
31
32
33
34 #define BA_ORI_INIT_SEQ (pEntry->TxSeq[TID]) //1 // inital sequence number of BA session
35
36 #define ORI_SESSION_MAX_RETRY 8
37 #define ORI_BA_SESSION_TIMEOUT (2000) // ms
38 #define REC_BA_SESSION_IDLE_TIMEOUT (1000) // ms
39
40 #define REORDERING_PACKET_TIMEOUT ((100 * HZ)/1000) // system ticks -- 100 ms
41 #define MAX_REORDERING_PACKET_TIMEOUT ((3000 * HZ)/1000) // system ticks -- 100 ms
42
43 #define RESET_RCV_SEQ (0xFFFF)
44
45 static void ba_mpdu_blk_free(PRTMP_ADAPTER pAd, struct reordering_mpdu *mpdu_blk);
46
47
48 BA_ORI_ENTRY *BATableAllocOriEntry(
49 IN PRTMP_ADAPTER pAd,
50 OUT USHORT *Idx);
51
52 BA_REC_ENTRY *BATableAllocRecEntry(
53 IN PRTMP_ADAPTER pAd,
54 OUT USHORT *Idx);
55
56 VOID BAOriSessionSetupTimeout(
57 IN PVOID SystemSpecific1,
58 IN PVOID FunctionContext,
59 IN PVOID SystemSpecific2,
60 IN PVOID SystemSpecific3);
61
62 VOID BARecSessionIdleTimeout(
63 IN PVOID SystemSpecific1,
64 IN PVOID FunctionContext,
65 IN PVOID SystemSpecific2,
66 IN PVOID SystemSpecific3);
67
68
69 BUILD_TIMER_FUNCTION(BAOriSessionSetupTimeout);
70 BUILD_TIMER_FUNCTION(BARecSessionIdleTimeout);
71
72 #define ANNOUNCE_REORDERING_PACKET(_pAd, _mpdu_blk) \
73 Announce_Reordering_Packet(_pAd, _mpdu_blk);
74
75 VOID BA_MaxWinSizeReasign(
76 IN PRTMP_ADAPTER pAd,
77 IN MAC_TABLE_ENTRY *pEntryPeer,
78 OUT UCHAR *pWinSize)
79 {
80 UCHAR MaxSize;
81
82
83 if (pAd->MACVersion >= RALINK_2883_VERSION) // 3*3
84 {
85 if (pAd->MACVersion >= RALINK_3070_VERSION)
86 {
87 if (pEntryPeer->WepStatus != Ndis802_11EncryptionDisabled)
88 MaxSize = 7; // for non-open mode
89 else
90 MaxSize = 13;
91 }
92 else
93 MaxSize = 31;
94 }
95 else if (pAd->MACVersion >= RALINK_2880E_VERSION) // 2880 e
96 {
97 if (pEntryPeer->WepStatus != Ndis802_11EncryptionDisabled)
98 MaxSize = 7; // for non-open mode
99 else
100 MaxSize = 13;
101 }
102 else
103 MaxSize = 7;
104
105 DBGPRINT(RT_DEBUG_TRACE, ("ba> Win Size = %d, Max Size = %d\n",
106 *pWinSize, MaxSize));
107
108 if ((*pWinSize) > MaxSize)
109 {
110 DBGPRINT(RT_DEBUG_TRACE, ("ba> reassign max win size from %d to %d\n",
111 *pWinSize, MaxSize));
112
113 *pWinSize = MaxSize;
114 }
115 }
116
117 void Announce_Reordering_Packet(IN PRTMP_ADAPTER pAd,
118 IN struct reordering_mpdu *mpdu)
119 {
120 PNDIS_PACKET pPacket;
121
122 pPacket = mpdu->pPacket;
123
124 if (mpdu->bAMSDU)
125 {
126 ASSERT(0);
127 BA_Reorder_AMSDU_Annnounce(pAd, pPacket);
128 }
129 else
130 {
131 //
132 // pass this 802.3 packet to upper layer or forward this packet to WM directly
133 //
134
135 #ifdef CONFIG_STA_SUPPORT
136 IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
137 ANNOUNCE_OR_FORWARD_802_3_PACKET(pAd, pPacket, RTMP_GET_PACKET_IF(pPacket));
138 #endif // CONFIG_STA_SUPPORT //
139 }
140 }
141
142 /*
143 * Insert a reordering mpdu into sorted linked list by sequence no.
144 */
145 BOOLEAN ba_reordering_mpdu_insertsorted(struct reordering_list *list, struct reordering_mpdu *mpdu)
146 {
147
148 struct reordering_mpdu **ppScan = &list->next;
149
150 while (*ppScan != NULL)
151 {
152 if (SEQ_SMALLER((*ppScan)->Sequence, mpdu->Sequence, MAXSEQ))
153 {
154 ppScan = &(*ppScan)->next;
155 }
156 else if ((*ppScan)->Sequence == mpdu->Sequence)
157 {
158 /* give up this duplicated frame */
159 return(FALSE);
160 }
161 else
162 {
163 /* find position */
164 break;
165 }
166 }
167
168 mpdu->next = *ppScan;
169 *ppScan = mpdu;
170 list->qlen++;
171 return TRUE;
172 }
173
174
175 /*
176 * caller lock critical section if necessary
177 */
178 static inline void ba_enqueue(struct reordering_list *list, struct reordering_mpdu *mpdu_blk)
179 {
180 list->qlen++;
181 mpdu_blk->next = list->next;
182 list->next = mpdu_blk;
183 }
184
185 /*
186 * caller lock critical section if necessary
187 */
188 static inline struct reordering_mpdu * ba_dequeue(struct reordering_list *list)
189 {
190 struct reordering_mpdu *mpdu_blk = NULL;
191
192 ASSERT(list);
193
194 if (list->qlen)
195 {
196 list->qlen--;
197 mpdu_blk = list->next;
198 if (mpdu_blk)
199 {
200 list->next = mpdu_blk->next;
201 mpdu_blk->next = NULL;
202 }
203 }
204 return mpdu_blk;
205 }
206
207
208 static inline struct reordering_mpdu *ba_reordering_mpdu_dequeue(struct reordering_list *list)
209 {
210 return(ba_dequeue(list));
211 }
212
213
214 static inline struct reordering_mpdu *ba_reordering_mpdu_probe(struct reordering_list *list)
215 {
216 ASSERT(list);
217
218 return(list->next);
219 }
220
221
222 /*
223 * free all resource for reordering mechanism
224 */
225 void ba_reordering_resource_release(PRTMP_ADAPTER pAd)
226 {
227 BA_TABLE *Tab;
228 PBA_REC_ENTRY pBAEntry;
229 struct reordering_mpdu *mpdu_blk;
230 int i;
231
232 Tab = &pAd->BATable;
233
234 /* I. release all pending reordering packet */
235 NdisAcquireSpinLock(&pAd->BATabLock);
236 for (i = 0; i < MAX_LEN_OF_BA_REC_TABLE; i++)
237 {
238 pBAEntry = &Tab->BARecEntry[i];
239 if (pBAEntry->REC_BA_Status != Recipient_NONE)
240 {
241 while ((mpdu_blk = ba_reordering_mpdu_dequeue(&pBAEntry->list)))
242 {
243 ASSERT(mpdu_blk->pPacket);
244 RELEASE_NDIS_PACKET(pAd, mpdu_blk->pPacket, NDIS_STATUS_FAILURE);
245 ba_mpdu_blk_free(pAd, mpdu_blk);
246 }
247 }
248 }
249 NdisReleaseSpinLock(&pAd->BATabLock);
250
251 ASSERT(pBAEntry->list.qlen == 0);
252 /* II. free memory of reordering mpdu table */
253 NdisAcquireSpinLock(&pAd->mpdu_blk_pool.lock);
254 os_free_mem(pAd, pAd->mpdu_blk_pool.mem);
255 NdisReleaseSpinLock(&pAd->mpdu_blk_pool.lock);
256 }
257
258
259
260 /*
261 * Allocate all resource for reordering mechanism
262 */
263 BOOLEAN ba_reordering_resource_init(PRTMP_ADAPTER pAd, int num)
264 {
265 int i;
266 PUCHAR mem;
267 struct reordering_mpdu *mpdu_blk;
268 struct reordering_list *freelist;
269
270 /* allocate spinlock */
271 NdisAllocateSpinLock(&pAd->mpdu_blk_pool.lock);
272
273 /* initialize freelist */
274 freelist = &pAd->mpdu_blk_pool.freelist;
275 freelist->next = NULL;
276 freelist->qlen = 0;
277
278 DBGPRINT(RT_DEBUG_TRACE, ("Allocate %d memory for BA reordering\n", (UINT32)(num*sizeof(struct reordering_mpdu))));
279
280 /* allocate number of mpdu_blk memory */
281 os_alloc_mem(pAd, (PUCHAR *)&mem, (num*sizeof(struct reordering_mpdu)));
282
283 pAd->mpdu_blk_pool.mem = mem;
284
285 if (mem == NULL)
286 {
287 DBGPRINT(RT_DEBUG_ERROR, ("Can't Allocate Memory for BA Reordering\n"));
288 return(FALSE);
289 }
290
291 /* build mpdu_blk free list */
292 for (i=0; i<num; i++)
293 {
294 /* get mpdu_blk */
295 mpdu_blk = (struct reordering_mpdu *) mem;
296 /* initial mpdu_blk */
297 NdisZeroMemory(mpdu_blk, sizeof(struct reordering_mpdu));
298 /* next mpdu_blk */
299 mem += sizeof(struct reordering_mpdu);
300 /* insert mpdu_blk into freelist */
301 ba_enqueue(freelist, mpdu_blk);
302 }
303
304 return(TRUE);
305 }
306
307 //static int blk_count=0; // sample take off, no use
308
309 static struct reordering_mpdu *ba_mpdu_blk_alloc(PRTMP_ADAPTER pAd)
310 {
311 struct reordering_mpdu *mpdu_blk;
312
313 NdisAcquireSpinLock(&pAd->mpdu_blk_pool.lock);
314 mpdu_blk = ba_dequeue(&pAd->mpdu_blk_pool.freelist);
315 if (mpdu_blk)
316 {
317 // blk_count++;
318 /* reset mpdu_blk */
319 NdisZeroMemory(mpdu_blk, sizeof(struct reordering_mpdu));
320 }
321 NdisReleaseSpinLock(&pAd->mpdu_blk_pool.lock);
322 return mpdu_blk;
323 }
324
325 static void ba_mpdu_blk_free(PRTMP_ADAPTER pAd, struct reordering_mpdu *mpdu_blk)
326 {
327 ASSERT(mpdu_blk);
328
329 NdisAcquireSpinLock(&pAd->mpdu_blk_pool.lock);
330 // blk_count--;
331 ba_enqueue(&pAd->mpdu_blk_pool.freelist, mpdu_blk);
332 NdisReleaseSpinLock(&pAd->mpdu_blk_pool.lock);
333 }
334
335
336 static USHORT ba_indicate_reordering_mpdus_in_order(
337 IN PRTMP_ADAPTER pAd,
338 IN PBA_REC_ENTRY pBAEntry,
339 IN USHORT StartSeq)
340 {
341 struct reordering_mpdu *mpdu_blk;
342 USHORT LastIndSeq = RESET_RCV_SEQ;
343
344 NdisAcquireSpinLock(&pBAEntry->RxReRingLock);
345
346 while ((mpdu_blk = ba_reordering_mpdu_probe(&pBAEntry->list)))
347 {
348 /* find in-order frame */
349 if (!SEQ_STEPONE(mpdu_blk->Sequence, StartSeq, MAXSEQ))
350 {
351 break;
352 }
353 /* dequeue in-order frame from reodering list */
354 mpdu_blk = ba_reordering_mpdu_dequeue(&pBAEntry->list);
355 /* pass this frame up */
356 ANNOUNCE_REORDERING_PACKET(pAd, mpdu_blk);
357 /* move to next sequence */
358 StartSeq = mpdu_blk->Sequence;
359 LastIndSeq = StartSeq;
360 /* free mpdu_blk */
361 ba_mpdu_blk_free(pAd, mpdu_blk);
362 }
363
364 NdisReleaseSpinLock(&pBAEntry->RxReRingLock);
365
366 /* update last indicated sequence */
367 return LastIndSeq;
368 }
369
370 static void ba_indicate_reordering_mpdus_le_seq(
371 IN PRTMP_ADAPTER pAd,
372 IN PBA_REC_ENTRY pBAEntry,
373 IN USHORT Sequence)
374 {
375 struct reordering_mpdu *mpdu_blk;
376
377 NdisAcquireSpinLock(&pBAEntry->RxReRingLock);
378 while ((mpdu_blk = ba_reordering_mpdu_probe(&pBAEntry->list)))
379 {
380 /* find in-order frame */
381 if ((mpdu_blk->Sequence == Sequence) || SEQ_SMALLER(mpdu_blk->Sequence, Sequence, MAXSEQ))
382 {
383 /* dequeue in-order frame from reodering list */
384 mpdu_blk = ba_reordering_mpdu_dequeue(&pBAEntry->list);
385 /* pass this frame up */
386 ANNOUNCE_REORDERING_PACKET(pAd, mpdu_blk);
387 /* free mpdu_blk */
388 ba_mpdu_blk_free(pAd, mpdu_blk);
389 }
390 else
391 {
392 break;
393 }
394 }
395 NdisReleaseSpinLock(&pBAEntry->RxReRingLock);
396 }
397
398
399 static void ba_refresh_reordering_mpdus(
400 IN PRTMP_ADAPTER pAd,
401 PBA_REC_ENTRY pBAEntry)
402 {
403 struct reordering_mpdu *mpdu_blk;
404
405 NdisAcquireSpinLock(&pBAEntry->RxReRingLock);
406
407 /* dequeue in-order frame from reodering list */
408 while ((mpdu_blk = ba_reordering_mpdu_dequeue(&pBAEntry->list)))
409 {
410 /* pass this frame up */
411 ANNOUNCE_REORDERING_PACKET(pAd, mpdu_blk);
412
413 pBAEntry->LastIndSeq = mpdu_blk->Sequence;
414 ba_mpdu_blk_free(pAd, mpdu_blk);
415
416 /* update last indicated sequence */
417 }
418 ASSERT(pBAEntry->list.qlen == 0);
419 pBAEntry->LastIndSeq = RESET_RCV_SEQ;
420 NdisReleaseSpinLock(&pBAEntry->RxReRingLock);
421 }
422
423
424 //static
425 void ba_flush_reordering_timeout_mpdus(
426 IN PRTMP_ADAPTER pAd,
427 IN PBA_REC_ENTRY pBAEntry,
428 IN ULONG Now32)
429
430 {
431 USHORT Sequence;
432
433 // if ((RTMP_TIME_AFTER((unsigned long)Now32, (unsigned long)(pBAEntry->LastIndSeqAtTimer+REORDERING_PACKET_TIMEOUT)) &&
434 // (pBAEntry->list.qlen > ((pBAEntry->BAWinSize*7)/8))) //||
435 // (RTMP_TIME_AFTER((unsigned long)Now32, (unsigned long)(pBAEntry->LastIndSeqAtTimer+(10*REORDERING_PACKET_TIMEOUT))) &&
436 // (pBAEntry->list.qlen > (pBAEntry->BAWinSize/8)))
437 if (RTMP_TIME_AFTER((unsigned long)Now32, (unsigned long)(pBAEntry->LastIndSeqAtTimer+(MAX_REORDERING_PACKET_TIMEOUT/6)))
438 &&(pBAEntry->list.qlen > 1)
439 )
440 {
441 DBGPRINT(RT_DEBUG_TRACE,("timeout[%d] (%08lx-%08lx = %d > %d): %x, flush all!\n ", pBAEntry->list.qlen, Now32, (pBAEntry->LastIndSeqAtTimer),
442 (int)((long) Now32 - (long)(pBAEntry->LastIndSeqAtTimer)), MAX_REORDERING_PACKET_TIMEOUT,
443 pBAEntry->LastIndSeq));
444 ba_refresh_reordering_mpdus(pAd, pBAEntry);
445 pBAEntry->LastIndSeqAtTimer = Now32;
446 }
447 else
448 if (RTMP_TIME_AFTER((unsigned long)Now32, (unsigned long)(pBAEntry->LastIndSeqAtTimer+(REORDERING_PACKET_TIMEOUT)))
449 && (pBAEntry->list.qlen > 0)
450 )
451 {
452 // printk("timeout[%d] (%lx-%lx = %d > %d): %x, ", pBAEntry->list.qlen, Now32, (pBAEntry->LastIndSeqAtTimer),
453 // (int)((long) Now32 - (long)(pBAEntry->LastIndSeqAtTimer)), REORDERING_PACKET_TIMEOUT,
454 // pBAEntry->LastIndSeq);
455 //
456 // force LastIndSeq to shift to LastIndSeq+1
457 //
458 Sequence = (pBAEntry->LastIndSeq+1) & MAXSEQ;
459 ba_indicate_reordering_mpdus_le_seq(pAd, pBAEntry, Sequence);
460 pBAEntry->LastIndSeqAtTimer = Now32;
461 pBAEntry->LastIndSeq = Sequence;
462 //
463 // indicate in-order mpdus
464 //
465 Sequence = ba_indicate_reordering_mpdus_in_order(pAd, pBAEntry, Sequence);
466 if (Sequence != RESET_RCV_SEQ)
467 {
468 pBAEntry->LastIndSeq = Sequence;
469 }
470
471 //printk("%x, flush one!\n", pBAEntry->LastIndSeq);
472
473 }
474 #if 0
475 else if (
476 (RTMP_TIME_AFTER((unsigned long)Now32, (unsigned long)(pBAEntry->LastIndSeqAtTimer+(MAX_REORDERING_PACKET_TIMEOUT))) &&
477 (pBAEntry->list.qlen > 1))
478 )
479 {
480 DBGPRINT(RT_DEBUG_TRACE,("timeout[%d] (%lx-%lx = %d > %d): %x\n ", pBAEntry->list.qlen, Now32, (pBAEntry->LastIndSeqAtTimer),
481 (int)((long) Now32 - (long)(pBAEntry->LastIndSeqAtTimer)), MAX_REORDERING_PACKET_TIMEOUT,
482 pBAEntry->LastIndSeq));
483 ba_refresh_reordering_mpdus(pAd, pBAEntry);
484 pBAEntry->LastIndSeqAtTimer = Now32;
485 }
486 #endif
487 }
488
489
490 /*
491 * generate ADDBA request to
492 * set up BA agreement
493 */
494 VOID BAOriSessionSetUp(
495 IN PRTMP_ADAPTER pAd,
496 IN MAC_TABLE_ENTRY *pEntry,
497 IN UCHAR TID,
498 IN USHORT TimeOut,
499 IN ULONG DelayTime,
500 IN BOOLEAN isForced)
501
502 {
503 //MLME_ADDBA_REQ_STRUCT AddbaReq;
504 BA_ORI_ENTRY *pBAEntry = NULL;
505 USHORT Idx;
506 BOOLEAN Cancelled;
507
508 if ((pAd->CommonCfg.BACapability.field.AutoBA != TRUE) && (isForced == FALSE))
509 return;
510
511 // if this entry is limited to use legacy tx mode, it doesn't generate BA.
512 if (RTMPStaFixedTxMode(pAd, pEntry) != FIXED_TXMODE_HT)
513 return;
514
515 if ((pEntry->BADeclineBitmap & (1<<TID)) && (isForced == FALSE))
516 {
517 // try again after 3 secs
518 DelayTime = 3000;
519 // printk("DeCline BA from Peer\n");
520 // return;
521 }
522
523
524 Idx = pEntry->BAOriWcidArray[TID];
525 if (Idx == 0)
526 {
527 // allocate a BA session
528 pBAEntry = BATableAllocOriEntry(pAd, &Idx);
529 if (pBAEntry == NULL)
530 {
531 DBGPRINT(RT_DEBUG_TRACE,("ADDBA - MlmeADDBAAction() allocate BA session failed \n"));
532 return;
533 }
534 }
535 else
536 {
537 pBAEntry =&pAd->BATable.BAOriEntry[Idx];
538 }
539
540 if (pBAEntry->ORI_BA_Status >= Originator_WaitRes)
541 {
542 return;
543 }
544
545 pEntry->BAOriWcidArray[TID] = Idx;
546
547 // Initialize BA session
548 pBAEntry->ORI_BA_Status = Originator_WaitRes;
549 pBAEntry->Wcid = pEntry->Aid;
550 pBAEntry->BAWinSize = pAd->CommonCfg.BACapability.field.RxBAWinLimit;
551 pBAEntry->Sequence = BA_ORI_INIT_SEQ;
552 pBAEntry->Token = 1; // (2008-01-21) Jan Lee recommends it - this token can't be 0
553 pBAEntry->TID = TID;
554 pBAEntry->TimeOutValue = TimeOut;
555 pBAEntry->pAdapter = pAd;
556
557 if (!(pEntry->TXBAbitmap & (1<<TID)))
558 {
559 RTMPInitTimer(pAd, &pBAEntry->ORIBATimer, GET_TIMER_FUNCTION(BAOriSessionSetupTimeout), pBAEntry, FALSE);
560 }
561 else
562 RTMPCancelTimer(&pBAEntry->ORIBATimer, &Cancelled);
563
564 // set timer to send ADDBA request
565 RTMPSetTimer(&pBAEntry->ORIBATimer, DelayTime);
566 }
567
568 VOID BAOriSessionAdd(
569 IN PRTMP_ADAPTER pAd,
570 IN MAC_TABLE_ENTRY *pEntry,
571 IN PFRAME_ADDBA_RSP pFrame)
572 {
573 BA_ORI_ENTRY *pBAEntry = NULL;
574 BOOLEAN Cancelled;
575 UCHAR TID;
576 USHORT Idx;
577 PUCHAR pOutBuffer2 = NULL;
578 NDIS_STATUS NStatus;
579 ULONG FrameLen;
580 FRAME_BAR FrameBar;
581
582 TID = pFrame->BaParm.TID;
583 Idx = pEntry->BAOriWcidArray[TID];
584 pBAEntry =&pAd->BATable.BAOriEntry[Idx];
585
586 // Start fill in parameters.
587 if ((Idx !=0) && (pBAEntry->TID == TID) && (pBAEntry->ORI_BA_Status == Originator_WaitRes))
588 {
589 pBAEntry->BAWinSize = min(pBAEntry->BAWinSize, ((UCHAR)pFrame->BaParm.BufSize));
590 BA_MaxWinSizeReasign(pAd, pEntry, &pBAEntry->BAWinSize);
591
592 pBAEntry->TimeOutValue = pFrame->TimeOutValue;
593 pBAEntry->ORI_BA_Status = Originator_Done;
594 // reset sequence number
595 pBAEntry->Sequence = BA_ORI_INIT_SEQ;
596 // Set Bitmap flag.
597 pEntry->TXBAbitmap |= (1<<TID);
598 RTMPCancelTimer(&pBAEntry->ORIBATimer, &Cancelled);
599
600 pBAEntry->ORIBATimer.TimerValue = 0; //pFrame->TimeOutValue;
601
602 DBGPRINT(RT_DEBUG_TRACE,("%s : TXBAbitmap = %x, BAWinSize = %d, TimeOut = %ld\n", __func__, pEntry->TXBAbitmap,
603 pBAEntry->BAWinSize, pBAEntry->ORIBATimer.TimerValue));
604
605 // SEND BAR ;
606 NStatus = MlmeAllocateMemory(pAd, &pOutBuffer2); //Get an unused nonpaged memory
607 if (NStatus != NDIS_STATUS_SUCCESS)
608 {
609 DBGPRINT(RT_DEBUG_TRACE,("BA - BAOriSessionAdd() allocate memory failed \n"));
610 return;
611 }
612
613
614 #ifdef CONFIG_STA_SUPPORT
615 IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
616 BarHeaderInit(pAd, &FrameBar, pAd->MacTab.Content[pBAEntry->Wcid].Addr, pAd->CurrentAddress);
617 #endif // CONFIG_STA_SUPPORT //
618
619 FrameBar.StartingSeq.field.FragNum = 0; // make sure sequence not clear in DEL function.
620 FrameBar.StartingSeq.field.StartSeq = pBAEntry->Sequence; // make sure sequence not clear in DEL funciton.
621 FrameBar.BarControl.TID = pBAEntry->TID; // make sure sequence not clear in DEL funciton.
622 MakeOutgoingFrame(pOutBuffer2, &FrameLen,
623 sizeof(FRAME_BAR), &FrameBar,
624 END_OF_ARGS);
625 MiniportMMRequest(pAd, QID_AC_BE, pOutBuffer2, FrameLen);
626 MlmeFreeMemory(pAd, pOutBuffer2);
627
628
629 if (pBAEntry->ORIBATimer.TimerValue)
630 RTMPSetTimer(&pBAEntry->ORIBATimer, pBAEntry->ORIBATimer.TimerValue); // in mSec
631 }
632 }
633
634 BOOLEAN BARecSessionAdd(
635 IN PRTMP_ADAPTER pAd,
636 IN MAC_TABLE_ENTRY *pEntry,
637 IN PFRAME_ADDBA_REQ pFrame)
638 {
639 BA_REC_ENTRY *pBAEntry = NULL;
640 BOOLEAN Status = TRUE;
641 BOOLEAN Cancelled;
642 USHORT Idx;
643 UCHAR TID;
644 UCHAR BAWinSize;
645 //UINT32 Value;
646 //UINT offset;
647
648
649 ASSERT(pEntry);
650
651 // find TID
652 TID = pFrame->BaParm.TID;
653
654 BAWinSize = min(((UCHAR)pFrame->BaParm.BufSize), (UCHAR)pAd->CommonCfg.BACapability.field.RxBAWinLimit);
655
656 // Intel patch
657 if (BAWinSize == 0)
658 {
659 BAWinSize = 64;
660 }
661
662 Idx = pEntry->BARecWcidArray[TID];
663
664
665 if (Idx == 0)
666 {
667 pBAEntry = BATableAllocRecEntry(pAd, &Idx);
668 }
669 else
670 {
671 pBAEntry = &pAd->BATable.BARecEntry[Idx];
672 // flush all pending reordering mpdus
673 ba_refresh_reordering_mpdus(pAd, pBAEntry);
674 }
675
676 DBGPRINT(RT_DEBUG_TRACE,("%s(%ld): Idx = %d, BAWinSize(req %d) = %d\n", __func__, pAd->BATable.numAsRecipient, Idx,
677 pFrame->BaParm.BufSize, BAWinSize));
678
679 // Start fill in parameters.
680 if (pBAEntry != NULL)
681 {
682 ASSERT(pBAEntry->list.qlen == 0);
683
684 pBAEntry->REC_BA_Status = Recipient_HandleRes;
685 pBAEntry->BAWinSize = BAWinSize;
686 pBAEntry->Wcid = pEntry->Aid;
687 pBAEntry->TID = TID;
688 pBAEntry->TimeOutValue = pFrame->TimeOutValue;
689 pBAEntry->REC_BA_Status = Recipient_Accept;
690 // initial sequence number
691 pBAEntry->LastIndSeq = RESET_RCV_SEQ; //pFrame->BaStartSeq.field.StartSeq;
692
693 printk("Start Seq = %08x\n", pFrame->BaStartSeq.field.StartSeq);
694
695 if (pEntry->RXBAbitmap & (1<<TID))
696 {
697 RTMPCancelTimer(&pBAEntry->RECBATimer, &Cancelled);
698 }
699 else
700 {
701 RTMPInitTimer(pAd, &pBAEntry->RECBATimer, GET_TIMER_FUNCTION(BARecSessionIdleTimeout), pBAEntry, TRUE);
702 }
703
704 #if 0 // for debugging
705 RTMPSetTimer(&pBAEntry->RECBATimer, REC_BA_SESSION_IDLE_TIMEOUT);
706 #endif
707
708 // Set Bitmap flag.
709 pEntry->RXBAbitmap |= (1<<TID);
710 pEntry->BARecWcidArray[TID] = Idx;
711
712 pEntry->BADeclineBitmap &= ~(1<<TID);
713
714 // Set BA session mask in WCID table.
715 RT28XX_ADD_BA_SESSION_TO_ASIC(pAd, pEntry->Aid, TID);
716
717 DBGPRINT(RT_DEBUG_TRACE,("MACEntry[%d]RXBAbitmap = 0x%x. BARecWcidArray=%d\n",
718 pEntry->Aid, pEntry->RXBAbitmap, pEntry->BARecWcidArray[TID]));
719 }
720 else
721 {
722 Status = FALSE;
723 DBGPRINT(RT_DEBUG_TRACE,("Can't Accept ADDBA for %02x:%02x:%02x:%02x:%02x:%02x TID = %d\n",
724 PRINT_MAC(pEntry->Addr), TID));
725 }
726 return(Status);
727 }
728
729
730 BA_REC_ENTRY *BATableAllocRecEntry(
731 IN PRTMP_ADAPTER pAd,
732 OUT USHORT *Idx)
733 {
734 int i;
735 BA_REC_ENTRY *pBAEntry = NULL;
736
737
738 NdisAcquireSpinLock(&pAd->BATabLock);
739
740 if (pAd->BATable.numAsRecipient >= MAX_BARECI_SESSION)
741 {
742 printk("BA Recipeint Session (%ld) > %d\n", pAd->BATable.numAsRecipient,
743 MAX_BARECI_SESSION);
744 goto done;
745 }
746
747 // reserve idx 0 to identify BAWcidArray[TID] as empty
748 for (i=1; i < MAX_LEN_OF_BA_REC_TABLE; i++)
749 {
750 pBAEntry =&pAd->BATable.BARecEntry[i];
751 if ((pBAEntry->REC_BA_Status == Recipient_NONE))
752 {
753 // get one
754 pAd->BATable.numAsRecipient++;
755 pBAEntry->REC_BA_Status = Recipient_USED;
756 *Idx = i;
757 break;
758 }
759 }
760
761 done:
762 NdisReleaseSpinLock(&pAd->BATabLock);
763 return pBAEntry;
764 }
765
766 BA_ORI_ENTRY *BATableAllocOriEntry(
767 IN PRTMP_ADAPTER pAd,
768 OUT USHORT *Idx)
769 {
770 int i;
771 BA_ORI_ENTRY *pBAEntry = NULL;
772
773 NdisAcquireSpinLock(&pAd->BATabLock);
774
775 if (pAd->BATable.numAsOriginator >= (MAX_LEN_OF_BA_ORI_TABLE))
776 {
777 goto done;
778 }
779
780 // reserve idx 0 to identify BAWcidArray[TID] as empty
781 for (i=1; i<MAX_LEN_OF_BA_ORI_TABLE; i++)
782 {
783 pBAEntry =&pAd->BATable.BAOriEntry[i];
784 if ((pBAEntry->ORI_BA_Status == Originator_NONE))
785 {
786 // get one
787 pAd->BATable.numAsOriginator++;
788 pBAEntry->ORI_BA_Status = Originator_USED;
789 pBAEntry->pAdapter = pAd;
790 *Idx = i;
791 break;
792 }
793 }
794
795 done:
796 NdisReleaseSpinLock(&pAd->BATabLock);
797 return pBAEntry;
798 }
799
800
801 VOID BATableFreeOriEntry(
802 IN PRTMP_ADAPTER pAd,
803 IN ULONG Idx)
804 {
805 BA_ORI_ENTRY *pBAEntry = NULL;
806 MAC_TABLE_ENTRY *pEntry;
807
808
809 if ((Idx == 0) || (Idx >= MAX_LEN_OF_BA_ORI_TABLE))
810 return;
811
812 pBAEntry =&pAd->BATable.BAOriEntry[Idx];
813
814 if (pBAEntry->ORI_BA_Status != Originator_NONE)
815 {
816 pEntry = &pAd->MacTab.Content[pBAEntry->Wcid];
817 pEntry->BAOriWcidArray[pBAEntry->TID] = 0;
818
819
820 NdisAcquireSpinLock(&pAd->BATabLock);
821 if (pBAEntry->ORI_BA_Status == Originator_Done)
822 {
823 pEntry->TXBAbitmap &= (~(1<<(pBAEntry->TID) ));
824 DBGPRINT(RT_DEBUG_TRACE, ("BATableFreeOriEntry numAsOriginator= %ld\n", pAd->BATable.numAsRecipient));
825 // Erase Bitmap flag.
826 }
827
828 ASSERT(pAd->BATable.numAsOriginator != 0);
829
830 pAd->BATable.numAsOriginator -= 1;
831
832 pBAEntry->ORI_BA_Status = Originator_NONE;
833 pBAEntry->Token = 0;
834 NdisReleaseSpinLock(&pAd->BATabLock);
835 }
836 }
837
838
839 VOID BATableFreeRecEntry(
840 IN PRTMP_ADAPTER pAd,
841 IN ULONG Idx)
842 {
843 BA_REC_ENTRY *pBAEntry = NULL;
844 MAC_TABLE_ENTRY *pEntry;
845
846
847 if ((Idx == 0) || (Idx >= MAX_LEN_OF_BA_REC_TABLE))
848 return;
849
850 pBAEntry =&pAd->BATable.BARecEntry[Idx];
851
852 if (pBAEntry->REC_BA_Status != Recipient_NONE)
853 {
854 pEntry = &pAd->MacTab.Content[pBAEntry->Wcid];
855 pEntry->BARecWcidArray[pBAEntry->TID] = 0;
856
857 NdisAcquireSpinLock(&pAd->BATabLock);
858
859 ASSERT(pAd->BATable.numAsRecipient != 0);
860
861 pAd->BATable.numAsRecipient -= 1;
862
863 pBAEntry->REC_BA_Status = Recipient_NONE;
864 NdisReleaseSpinLock(&pAd->BATabLock);
865 }
866 }
867
868
869 VOID BAOriSessionTearDown(
870 IN OUT PRTMP_ADAPTER pAd,
871 IN UCHAR Wcid,
872 IN UCHAR TID,
873 IN BOOLEAN bPassive,
874 IN BOOLEAN bForceSend)
875 {
876 ULONG Idx = 0;
877 BA_ORI_ENTRY *pBAEntry;
878 BOOLEAN Cancelled;
879
880 if (Wcid >= MAX_LEN_OF_MAC_TABLE)
881 {
882 return;
883 }
884
885 //
886 // Locate corresponding BA Originator Entry in BA Table with the (pAddr,TID).
887 //
888 Idx = pAd->MacTab.Content[Wcid].BAOriWcidArray[TID];
889 if ((Idx == 0) || (Idx >= MAX_LEN_OF_BA_ORI_TABLE))
890 {
891 if (bForceSend == TRUE)
892 {
893 // force send specified TID DelBA
894 MLME_DELBA_REQ_STRUCT DelbaReq;
895 MLME_QUEUE_ELEM *Elem = (MLME_QUEUE_ELEM *) kmalloc(sizeof(MLME_QUEUE_ELEM), MEM_ALLOC_FLAG);
896
897 NdisZeroMemory(&DelbaReq, sizeof(DelbaReq));
898 NdisZeroMemory(Elem, sizeof(MLME_QUEUE_ELEM));
899
900 COPY_MAC_ADDR(DelbaReq.Addr, pAd->MacTab.Content[Wcid].Addr);
901 DelbaReq.Wcid = Wcid;
902 DelbaReq.TID = TID;
903 DelbaReq.Initiator = ORIGINATOR;
904 #if 1
905 Elem->MsgLen = sizeof(DelbaReq);
906 NdisMoveMemory(Elem->Msg, &DelbaReq, sizeof(DelbaReq));
907 MlmeDELBAAction(pAd, Elem);
908 kfree(Elem);
909 #else
910 MlmeEnqueue(pAd, ACTION_STATE_MACHINE, MT2_MLME_ORI_DELBA_CATE, sizeof(MLME_DELBA_REQ_STRUCT), (PVOID)&DelbaReq);
911 RT28XX_MLME_HANDLER(pAd);
912 #endif
913 }
914
915 return;
916 }
917
918 DBGPRINT(RT_DEBUG_TRACE,("%s===>Wcid=%d.TID=%d \n", __func__, Wcid, TID));
919
920 pBAEntry = &pAd->BATable.BAOriEntry[Idx];
921 DBGPRINT(RT_DEBUG_TRACE,("\t===>Idx = %ld, Wcid=%d.TID=%d, ORI_BA_Status = %d \n", Idx, Wcid, TID, pBAEntry->ORI_BA_Status));
922 //
923 // Prepare DelBA action frame and send to the peer.
924 //
925 if ((bPassive == FALSE) && (TID == pBAEntry->TID) && (pBAEntry->ORI_BA_Status == Originator_Done))
926 {
927 MLME_DELBA_REQ_STRUCT DelbaReq;
928 MLME_QUEUE_ELEM *Elem = (MLME_QUEUE_ELEM *) kmalloc(sizeof(MLME_QUEUE_ELEM), MEM_ALLOC_FLAG);
929
930 NdisZeroMemory(&DelbaReq, sizeof(DelbaReq));
931 NdisZeroMemory(Elem, sizeof(MLME_QUEUE_ELEM));
932
933 COPY_MAC_ADDR(DelbaReq.Addr, pAd->MacTab.Content[Wcid].Addr);
934 DelbaReq.Wcid = Wcid;
935 DelbaReq.TID = pBAEntry->TID;
936 DelbaReq.Initiator = ORIGINATOR;
937 #if 1
938 Elem->MsgLen = sizeof(DelbaReq);
939 NdisMoveMemory(Elem->Msg, &DelbaReq, sizeof(DelbaReq));
940 MlmeDELBAAction(pAd, Elem);
941 kfree(Elem);
942 #else
943 MlmeEnqueue(pAd, ACTION_STATE_MACHINE, MT2_MLME_ORI_DELBA_CATE, sizeof(MLME_DELBA_REQ_STRUCT), (PVOID)&DelbaReq);
944 RT28XX_MLME_HANDLER(pAd);
945 #endif
946 }
947 RTMPCancelTimer(&pBAEntry->ORIBATimer, &Cancelled);
948 BATableFreeOriEntry(pAd, Idx);
949
950 if (bPassive)
951 {
952 //BAOriSessionSetUp(pAd, &pAd->MacTab.Content[Wcid], TID, 0, 10000, TRUE);
953 }
954 }
955
956 VOID BARecSessionTearDown(
957 IN OUT PRTMP_ADAPTER pAd,
958 IN UCHAR Wcid,
959 IN UCHAR TID,
960 IN BOOLEAN bPassive)
961 {
962 ULONG Idx = 0;
963 BA_REC_ENTRY *pBAEntry;
964
965 if (Wcid >= MAX_LEN_OF_MAC_TABLE)
966 {
967 return;
968 }
969
970 //
971 // Locate corresponding BA Originator Entry in BA Table with the (pAddr,TID).
972 //
973 Idx = pAd->MacTab.Content[Wcid].BARecWcidArray[TID];
974 if (Idx == 0)
975 return;
976
977 DBGPRINT(RT_DEBUG_TRACE,("%s===>Wcid=%d.TID=%d \n", __func__, Wcid, TID));
978
979
980 pBAEntry = &pAd->BATable.BARecEntry[Idx];
981 DBGPRINT(RT_DEBUG_TRACE,("\t===>Idx = %ld, Wcid=%d.TID=%d, REC_BA_Status = %d \n", Idx, Wcid, TID, pBAEntry->REC_BA_Status));
982 //
983 // Prepare DelBA action frame and send to the peer.
984 //
985 if ((TID == pBAEntry->TID) && (pBAEntry->REC_BA_Status == Recipient_Accept))
986 {
987 MLME_DELBA_REQ_STRUCT DelbaReq;
988 BOOLEAN Cancelled;
989 MLME_QUEUE_ELEM *Elem = (MLME_QUEUE_ELEM *) kmalloc(sizeof(MLME_QUEUE_ELEM), MEM_ALLOC_FLAG);
990 //ULONG offset;
991 //UINT32 VALUE;
992
993 RTMPCancelTimer(&pBAEntry->RECBATimer, &Cancelled);
994
995 //
996 // 1. Send DELBA Action Frame
997 //
998 if (bPassive == FALSE)
999 {
1000 NdisZeroMemory(&DelbaReq, sizeof(DelbaReq));
1001 NdisZeroMemory(Elem, sizeof(MLME_QUEUE_ELEM));
1002
1003 COPY_MAC_ADDR(DelbaReq.Addr, pAd->MacTab.Content[Wcid].Addr);
1004 DelbaReq.Wcid = Wcid;
1005 DelbaReq.TID = TID;
1006 DelbaReq.Initiator = RECIPIENT;
1007 #if 1
1008 Elem->MsgLen = sizeof(DelbaReq);
1009 NdisMoveMemory(Elem->Msg, &DelbaReq, sizeof(DelbaReq));
1010 MlmeDELBAAction(pAd, Elem);
1011 kfree(Elem);
1012 #else
1013 MlmeEnqueue(pAd, ACTION_STATE_MACHINE, MT2_MLME_ORI_DELBA_CATE, sizeof(MLME_DELBA_REQ_STRUCT), (PVOID)&DelbaReq);
1014 RT28XX_MLME_HANDLER(pAd);
1015 #endif
1016 }
1017
1018
1019 //
1020 // 2. Free resource of BA session
1021 //
1022 // flush all pending reordering mpdus
1023 ba_refresh_reordering_mpdus(pAd, pBAEntry);
1024
1025 NdisAcquireSpinLock(&pAd->BATabLock);
1026
1027 // Erase Bitmap flag.
1028 pBAEntry->LastIndSeq = RESET_RCV_SEQ;
1029 pBAEntry->BAWinSize = 0;
1030 // Erase Bitmap flag at software mactable
1031 pAd->MacTab.Content[Wcid].RXBAbitmap &= (~(1<<(pBAEntry->TID)));
1032 pAd->MacTab.Content[Wcid].BARecWcidArray[TID] = 0;
1033
1034 RT28XX_DEL_BA_SESSION_FROM_ASIC(pAd, Wcid, TID);
1035
1036 NdisReleaseSpinLock(&pAd->BATabLock);
1037
1038 }
1039
1040 BATableFreeRecEntry(pAd, Idx);
1041 }
1042
1043 VOID BASessionTearDownALL(
1044 IN OUT PRTMP_ADAPTER pAd,
1045 IN UCHAR Wcid)
1046 {
1047 int i;
1048
1049 for (i=0; i<NUM_OF_TID; i++)
1050 {
1051 BAOriSessionTearDown(pAd, Wcid, i, FALSE, FALSE);
1052 BARecSessionTearDown(pAd, Wcid, i, FALSE);
1053 }
1054 }
1055
1056
1057 /*
1058 ==========================================================================
1059 Description:
1060 Retry sending ADDBA Reqest.
1061
1062 IRQL = DISPATCH_LEVEL
1063
1064 Parametrs:
1065 p8023Header: if this is already 802.3 format, p8023Header is NULL
1066
1067 Return : TRUE if put into rx reordering buffer, shouldn't indicaterxhere.
1068 FALSE , then continue indicaterx at this moment.
1069 ==========================================================================
1070 */
1071 VOID BAOriSessionSetupTimeout(
1072 IN PVOID SystemSpecific1,
1073 IN PVOID FunctionContext,
1074 IN PVOID SystemSpecific2,
1075 IN PVOID SystemSpecific3)
1076 {
1077 BA_ORI_ENTRY *pBAEntry = (BA_ORI_ENTRY *)FunctionContext;
1078 MAC_TABLE_ENTRY *pEntry;
1079 PRTMP_ADAPTER pAd;
1080
1081 if (pBAEntry == NULL)
1082 return;
1083
1084 pAd = pBAEntry->pAdapter;
1085
1086 #ifdef CONFIG_STA_SUPPORT
1087 IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
1088 {
1089 // Do nothing if monitor mode is on
1090 if (MONITOR_ON(pAd))
1091 return;
1092 }
1093 #endif // CONFIG_STA_SUPPORT //
1094
1095 pEntry = &pAd->MacTab.Content[pBAEntry->Wcid];
1096
1097 if ((pBAEntry->ORI_BA_Status == Originator_WaitRes) && (pBAEntry->Token < ORI_SESSION_MAX_RETRY))
1098 {
1099 MLME_ADDBA_REQ_STRUCT AddbaReq;
1100
1101 NdisZeroMemory(&AddbaReq, sizeof(AddbaReq));
1102 COPY_MAC_ADDR(AddbaReq.pAddr, pEntry->Addr);
1103 AddbaReq.Wcid = (UCHAR)(pEntry->Aid);
1104 AddbaReq.TID = pBAEntry->TID;
1105 AddbaReq.BaBufSize = pAd->CommonCfg.BACapability.field.RxBAWinLimit;
1106 AddbaReq.TimeOutValue = 0;
1107 AddbaReq.Token = pBAEntry->Token;
1108 MlmeEnqueue(pAd, ACTION_STATE_MACHINE, MT2_MLME_ADD_BA_CATE, sizeof(MLME_ADDBA_REQ_STRUCT), (PVOID)&AddbaReq);
1109 RT28XX_MLME_HANDLER(pAd);
1110 DBGPRINT(RT_DEBUG_TRACE,("BA Ori Session Timeout(%d) : Send ADD BA again\n", pBAEntry->Token));
1111
1112 pBAEntry->Token++;
1113 RTMPSetTimer(&pBAEntry->ORIBATimer, ORI_BA_SESSION_TIMEOUT);
1114 }
1115 else
1116 {
1117 BATableFreeOriEntry(pAd, pEntry->BAOriWcidArray[pBAEntry->TID]);
1118 }
1119 }
1120
1121 /*
1122 ==========================================================================
1123 Description:
1124 Retry sending ADDBA Reqest.
1125
1126 IRQL = DISPATCH_LEVEL
1127
1128 Parametrs:
1129 p8023Header: if this is already 802.3 format, p8023Header is NULL
1130
1131 Return : TRUE if put into rx reordering buffer, shouldn't indicaterxhere.
1132 FALSE , then continue indicaterx at this moment.
1133 ==========================================================================
1134 */
1135 VOID BARecSessionIdleTimeout(
1136 IN PVOID SystemSpecific1,
1137 IN PVOID FunctionContext,
1138 IN PVOID SystemSpecific2,
1139 IN PVOID SystemSpecific3)
1140 {
1141
1142 BA_REC_ENTRY *pBAEntry = (BA_REC_ENTRY *)FunctionContext;
1143 PRTMP_ADAPTER pAd;
1144 ULONG Now32;
1145
1146 if (pBAEntry == NULL)
1147 return;
1148
1149 if ((pBAEntry->REC_BA_Status == Recipient_Accept))
1150 {
1151 NdisGetSystemUpTime(&Now32);
1152
1153 if (RTMP_TIME_AFTER((unsigned long)Now32, (unsigned long)(pBAEntry->LastIndSeqAtTimer + REC_BA_SESSION_IDLE_TIMEOUT)))
1154 {
1155 pAd = pBAEntry->pAdapter;
1156 // flush all pending reordering mpdus
1157 ba_refresh_reordering_mpdus(pAd, pBAEntry);
1158 printk("%ld: REC BA session Timeout\n", Now32);
1159 }
1160 }
1161 }
1162
1163
1164 VOID PeerAddBAReqAction(
1165 IN PRTMP_ADAPTER pAd,
1166 IN MLME_QUEUE_ELEM *Elem)
1167
1168 {
1169 // 7.4.4.1
1170 //ULONG Idx;
1171 UCHAR Status = 1;
1172 UCHAR pAddr[6];
1173 FRAME_ADDBA_RSP ADDframe;
1174 PUCHAR pOutBuffer = NULL;
1175 NDIS_STATUS NStatus;
1176 PFRAME_ADDBA_REQ pAddreqFrame = NULL;
1177 //UCHAR BufSize;
1178 ULONG FrameLen;
1179 PULONG ptemp;
1180 PMAC_TABLE_ENTRY pMacEntry;
1181
1182 DBGPRINT(RT_DEBUG_TRACE, ("%s ==> (Wcid = %d)\n", __func__, Elem->Wcid));
1183
1184 //hex_dump("AddBAReq", Elem->Msg, Elem->MsgLen);
1185
1186 //ADDBA Request from unknown peer, ignore this.
1187 if (Elem->Wcid >= MAX_LEN_OF_MAC_TABLE)
1188 return;
1189
1190 pMacEntry = &pAd->MacTab.Content[Elem->Wcid];
1191 DBGPRINT(RT_DEBUG_TRACE,("BA - PeerAddBAReqAction----> \n"));
1192 ptemp = (PULONG)Elem->Msg;
1193 //DBGPRINT_RAW(RT_DEBUG_EMU, ("%08x:: %08x:: %08x:: %08x:: %08x:: %08x:: %08x:: %08x:: %08x\n", *(ptemp), *(ptemp+1), *(ptemp+2), *(ptemp+3), *(ptemp+4), *(ptemp+5), *(ptemp+6), *(ptemp+7), *(ptemp+8)));
1194
1195 if (PeerAddBAReqActionSanity(pAd, Elem->Msg, Elem->MsgLen, pAddr))
1196 {
1197
1198 if ((pAd->CommonCfg.bBADecline == FALSE) && IS_HT_STA(pMacEntry))
1199 {
1200 pAddreqFrame = (PFRAME_ADDBA_REQ)(&Elem->Msg[0]);
1201 printk("Rcv Wcid(%d) AddBAReq\n", Elem->Wcid);
1202 if (BARecSessionAdd(pAd, &pAd->MacTab.Content[Elem->Wcid], pAddreqFrame))
1203 Status = 0;
1204 else
1205 Status = 38; // more parameters have invalid values
1206 }
1207 else
1208 {
1209 Status = 37; // the request has been declined.
1210 }
1211 }
1212
1213 if (pAd->MacTab.Content[Elem->Wcid].ValidAsCLI)
1214 ASSERT(pAd->MacTab.Content[Elem->Wcid].Sst == SST_ASSOC);
1215
1216 pAddreqFrame = (PFRAME_ADDBA_REQ)(&Elem->Msg[0]);
1217 // 2. Always send back ADDBA Response
1218 NStatus = MlmeAllocateMemory(pAd, &pOutBuffer); //Get an unused nonpaged memory
1219 if (NStatus != NDIS_STATUS_SUCCESS)
1220 {
1221 DBGPRINT(RT_DEBUG_TRACE,("ACTION - PeerBAAction() allocate memory failed \n"));
1222 return;
1223 }
1224
1225 NdisZeroMemory(&ADDframe, sizeof(FRAME_ADDBA_RSP));
1226 // 2-1. Prepare ADDBA Response frame.
1227 #ifdef CONFIG_STA_SUPPORT
1228 IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
1229 {
1230 if (ADHOC_ON(pAd))
1231 ActHeaderInit(pAd, &ADDframe.Hdr, pAddr, pAd->CurrentAddress, pAd->CommonCfg.Bssid);
1232 else
1233 ActHeaderInit(pAd, &ADDframe.Hdr, pAd->CommonCfg.Bssid, pAd->CurrentAddress, pAddr);
1234 }
1235 #endif // CONFIG_STA_SUPPORT //
1236 ADDframe.Category = CATEGORY_BA;
1237 ADDframe.Action = ADDBA_RESP;
1238 ADDframe.Token = pAddreqFrame->Token;
1239 // What is the Status code?? need to check.
1240 ADDframe.StatusCode = Status;
1241 ADDframe.BaParm.BAPolicy = IMMED_BA;
1242 ADDframe.BaParm.AMSDUSupported = 0;
1243 ADDframe.BaParm.TID = pAddreqFrame->BaParm.TID;
1244 ADDframe.BaParm.BufSize = min(((UCHAR)pAddreqFrame->BaParm.BufSize), (UCHAR)pAd->CommonCfg.BACapability.field.RxBAWinLimit);
1245 if (ADDframe.BaParm.BufSize == 0)
1246 {
1247 ADDframe.BaParm.BufSize = 64;
1248 }
1249 ADDframe.TimeOutValue = 0; //pAddreqFrame->TimeOutValue;
1250
1251 *(USHORT *)(&ADDframe.BaParm) = cpu2le16(*(USHORT *)(&ADDframe.BaParm));
1252 ADDframe.StatusCode = cpu2le16(ADDframe.StatusCode);
1253 ADDframe.TimeOutValue = cpu2le16(ADDframe.TimeOutValue);
1254
1255 MakeOutgoingFrame(pOutBuffer, &FrameLen,
1256 sizeof(FRAME_ADDBA_RSP), &ADDframe,
1257 END_OF_ARGS);
1258 MiniportMMRequest(pAd, QID_AC_BE, pOutBuffer, FrameLen);
1259 MlmeFreeMemory(pAd, pOutBuffer);
1260
1261 DBGPRINT(RT_DEBUG_TRACE, ("%s(%d): TID(%d), BufSize(%d) <== \n", __func__, Elem->Wcid, ADDframe.BaParm.TID,
1262 ADDframe.BaParm.BufSize));
1263 }
1264
1265
1266 VOID PeerAddBARspAction(
1267 IN PRTMP_ADAPTER pAd,
1268 IN MLME_QUEUE_ELEM *Elem)
1269
1270 {
1271 //UCHAR Idx, i;
1272 //PUCHAR pOutBuffer = NULL;
1273 PFRAME_ADDBA_RSP pFrame = NULL;
1274 //PBA_ORI_ENTRY pBAEntry;
1275
1276 //ADDBA Response from unknown peer, ignore this.
1277 if (Elem->Wcid >= MAX_LEN_OF_MAC_TABLE)
1278 return;
1279
1280 DBGPRINT(RT_DEBUG_TRACE, ("%s ==> Wcid(%d)\n", __func__, Elem->Wcid));
1281
1282 //hex_dump("PeerAddBARspAction()", Elem->Msg, Elem->MsgLen);
1283
1284 if (PeerAddBARspActionSanity(pAd, Elem->Msg, Elem->MsgLen))
1285 {
1286 pFrame = (PFRAME_ADDBA_RSP)(&Elem->Msg[0]);
1287
1288 DBGPRINT(RT_DEBUG_TRACE, ("\t\t StatusCode = %d\n", pFrame->StatusCode));
1289 switch (pFrame->StatusCode)
1290 {
1291 case 0:
1292 // I want a BAsession with this peer as an originator.
1293 BAOriSessionAdd(pAd, &pAd->MacTab.Content[Elem->Wcid], pFrame);
1294 break;
1295 default:
1296 // check status == USED ???
1297 BAOriSessionTearDown(pAd, Elem->Wcid, pFrame->BaParm.TID, TRUE, FALSE);
1298 break;
1299 }
1300 // Rcv Decline StatusCode
1301 if ((pFrame->StatusCode == 37)
1302 #ifdef CONFIG_STA_SUPPORT
1303 || ((pAd->OpMode == OPMODE_STA) && STA_TGN_WIFI_ON(pAd) && (pFrame->StatusCode != 0))
1304 #endif // CONFIG_STA_SUPPORT //
1305 )
1306 {
1307 pAd->MacTab.Content[Elem->Wcid].BADeclineBitmap |= 1<<pFrame->BaParm.TID;
1308 }
1309 }
1310 }
1311
1312 VOID PeerDelBAAction(
1313 IN PRTMP_ADAPTER pAd,
1314 IN MLME_QUEUE_ELEM *Elem)
1315
1316 {
1317 //UCHAR Idx;
1318 //PUCHAR pOutBuffer = NULL;
1319 PFRAME_DELBA_REQ pDelFrame = NULL;
1320
1321 DBGPRINT(RT_DEBUG_TRACE,("%s ==>\n", __func__));
1322 //DELBA Request from unknown peer, ignore this.
1323 if (PeerDelBAActionSanity(pAd, Elem->Wcid, Elem->Msg, Elem->MsgLen))
1324 {
1325 pDelFrame = (PFRAME_DELBA_REQ)(&Elem->Msg[0]);
1326 if (pDelFrame->DelbaParm.Initiator == ORIGINATOR)
1327 {
1328 DBGPRINT(RT_DEBUG_TRACE,("BA - PeerDelBAAction----> ORIGINATOR\n"));
1329 BARecSessionTearDown(pAd, Elem->Wcid, pDelFrame->DelbaParm.TID, TRUE);
1330 }
1331 else
1332 {
1333 DBGPRINT(RT_DEBUG_TRACE,("BA - PeerDelBAAction----> RECIPIENT, Reason = %d\n", pDelFrame->ReasonCode));
1334 //hex_dump("DelBA Frame", pDelFrame, Elem->MsgLen);
1335 BAOriSessionTearDown(pAd, Elem->Wcid, pDelFrame->DelbaParm.TID, TRUE, FALSE);
1336 }
1337 }
1338 }
1339
1340
1341 BOOLEAN CntlEnqueueForRecv(
1342 IN PRTMP_ADAPTER pAd,
1343 IN ULONG Wcid,
1344 IN ULONG MsgLen,
1345 IN PFRAME_BA_REQ pMsg)
1346 {
1347 PFRAME_BA_REQ pFrame = pMsg;
1348 //PRTMP_REORDERBUF pBuffer;
1349 //PRTMP_REORDERBUF pDmaBuf;
1350 PBA_REC_ENTRY pBAEntry;
1351 //BOOLEAN Result;
1352 ULONG Idx;
1353 //UCHAR NumRxPkt;
1354 UCHAR TID;//, i;
1355
1356 TID = (UCHAR)pFrame->BARControl.TID;
1357
1358 DBGPRINT(RT_DEBUG_TRACE, ("%s(): BAR-Wcid(%ld), Tid (%d)\n", __func__, Wcid, TID));
1359 //hex_dump("BAR", (PCHAR) pFrame, MsgLen);
1360 // Do nothing if the driver is starting halt state.
1361 // This might happen when timer already been fired before cancel timer with mlmehalt
1362 if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS | fRTMP_ADAPTER_NIC_NOT_EXIST))
1363 return FALSE;
1364
1365 // First check the size, it MUST not exceed the mlme queue size
1366 if (MsgLen > MGMT_DMA_BUFFER_SIZE)
1367 {
1368 DBGPRINT_ERR(("CntlEnqueueForRecv: frame too large, size = %ld \n", MsgLen));
1369 return FALSE;
1370 }
1371 else if (MsgLen != sizeof(FRAME_BA_REQ))
1372 {
1373 DBGPRINT_ERR(("CntlEnqueueForRecv: BlockAck Request frame length size = %ld incorrect\n", MsgLen));
1374 return FALSE;
1375 }
1376 else if (MsgLen != sizeof(FRAME_BA_REQ))
1377 {
1378 DBGPRINT_ERR(("CntlEnqueueForRecv: BlockAck Request frame length size = %ld incorrect\n", MsgLen));
1379 return FALSE;
1380 }
1381
1382 if ((Wcid < MAX_LEN_OF_MAC_TABLE) && (TID < 8))
1383 {
1384 // if this receiving packet is from SA that is in our OriEntry. Since WCID <9 has direct mapping. no need search.
1385 Idx = pAd->MacTab.Content[Wcid].BARecWcidArray[TID];
1386 pBAEntry = &pAd->BATable.BARecEntry[Idx];
1387 }
1388 else
1389 {
1390 return FALSE;
1391 }
1392
1393 DBGPRINT(RT_DEBUG_TRACE, ("BAR(%ld) : Tid (%d) - %04x:%04x\n", Wcid, TID, pFrame->BAStartingSeq.field.StartSeq, pBAEntry->LastIndSeq ));
1394
1395 if (SEQ_SMALLER(pBAEntry->LastIndSeq, pFrame->BAStartingSeq.field.StartSeq, MAXSEQ))
1396 {
1397 //printk("BAR Seq = %x, LastIndSeq = %x\n", pFrame->BAStartingSeq.field.StartSeq, pBAEntry->LastIndSeq);
1398 ba_indicate_reordering_mpdus_le_seq(pAd, pBAEntry, pFrame->BAStartingSeq.field.StartSeq);
1399 pBAEntry->LastIndSeq = (pFrame->BAStartingSeq.field.StartSeq == 0) ? MAXSEQ :(pFrame->BAStartingSeq.field.StartSeq -1);
1400 }
1401 //ba_refresh_reordering_mpdus(pAd, pBAEntry);
1402 return TRUE;
1403 }
1404
1405 /*
1406 Description : Send PSMP Action frame If PSMP mode switches.
1407 */
1408 VOID SendPSMPAction(
1409 IN PRTMP_ADAPTER pAd,
1410 IN UCHAR Wcid,
1411 IN UCHAR Psmp)
1412 {
1413 PUCHAR pOutBuffer = NULL;
1414 NDIS_STATUS NStatus;
1415 //ULONG Idx;
1416 FRAME_PSMP_ACTION Frame;
1417 ULONG FrameLen;
1418
1419 NStatus = MlmeAllocateMemory(pAd, &pOutBuffer); //Get an unused nonpaged memory
1420 if (NStatus != NDIS_STATUS_SUCCESS)
1421 {
1422 DBGPRINT(RT_DEBUG_ERROR,("BA - MlmeADDBAAction() allocate memory failed \n"));
1423 return;
1424 }
1425 #ifdef CONFIG_STA_SUPPORT
1426 IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
1427 ActHeaderInit(pAd, &Frame.Hdr, pAd->CommonCfg.Bssid, pAd->CurrentAddress, pAd->MacTab.Content[Wcid].Addr);
1428 #endif // CONFIG_STA_SUPPORT //
1429
1430 Frame.Category = CATEGORY_HT;
1431 Frame.Action = SMPS_ACTION;
1432 switch (Psmp)
1433 {
1434 case MMPS_ENABLE:
1435 Frame.Psmp = 0;
1436 break;
1437 case MMPS_DYNAMIC:
1438 Frame.Psmp = 3;
1439 break;
1440 case MMPS_STATIC:
1441 Frame.Psmp = 1;
1442 break;
1443 }
1444 MakeOutgoingFrame(pOutBuffer, &FrameLen,
1445 sizeof(FRAME_PSMP_ACTION), &Frame,
1446 END_OF_ARGS);
1447 MiniportMMRequest(pAd, QID_AC_BE, pOutBuffer, FrameLen);
1448 MlmeFreeMemory(pAd, pOutBuffer);
1449 DBGPRINT(RT_DEBUG_ERROR,("HT - SendPSMPAction( %d ) \n", Frame.Psmp));
1450 }
1451
1452
1453 #define RADIO_MEASUREMENT_REQUEST_ACTION 0
1454
1455 typedef struct PACKED
1456 {
1457 UCHAR RegulatoryClass;
1458 UCHAR ChannelNumber;
1459 USHORT RandomInterval;
1460 USHORT MeasurementDuration;
1461 UCHAR MeasurementMode;
1462 UCHAR BSSID[MAC_ADDR_LEN];
1463 UCHAR ReportingCondition;
1464 UCHAR Threshold;
1465 UCHAR SSIDIE[2]; // 2 byte
1466 } BEACON_REQUEST;
1467
1468 typedef struct PACKED
1469 {
1470 UCHAR ID;
1471 UCHAR Length;
1472 UCHAR Token;
1473 UCHAR RequestMode;
1474 UCHAR Type;
1475 } MEASUREMENT_REQ;
1476
1477
1478
1479
1480 void convert_reordering_packet_to_preAMSDU_or_802_3_packet(
1481 IN PRTMP_ADAPTER pAd,
1482 IN RX_BLK *pRxBlk,
1483 IN UCHAR FromWhichBSSID)
1484 {
1485 PNDIS_PACKET pRxPkt;
1486 UCHAR Header802_3[LENGTH_802_3];
1487
1488 // 1. get 802.3 Header
1489 // 2. remove LLC
1490 // a. pointer pRxBlk->pData to payload
1491 // b. modify pRxBlk->DataSize
1492
1493 #ifdef CONFIG_STA_SUPPORT
1494 IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
1495 RTMP_802_11_REMOVE_LLC_AND_CONVERT_TO_802_3(pRxBlk, Header802_3);
1496 #endif // CONFIG_STA_SUPPORT //
1497
1498 ASSERT(pRxBlk->pRxPacket);
1499 pRxPkt = RTPKT_TO_OSPKT(pRxBlk->pRxPacket);
1500
1501 RTPKT_TO_OSPKT(pRxPkt)->dev = get_netdev_from_bssid(pAd, FromWhichBSSID);
1502 RTPKT_TO_OSPKT(pRxPkt)->data = pRxBlk->pData;
1503 RTPKT_TO_OSPKT(pRxPkt)->len = pRxBlk->DataSize;
1504 RTPKT_TO_OSPKT(pRxPkt)->tail = RTPKT_TO_OSPKT(pRxPkt)->data + RTPKT_TO_OSPKT(pRxPkt)->len;
1505
1506 //
1507 // copy 802.3 header, if necessary
1508 //
1509 if (!RX_BLK_TEST_FLAG(pRxBlk, fRX_AMSDU))
1510 {
1511
1512 #ifdef CONFIG_STA_SUPPORT
1513 IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
1514 {
1515 #ifdef LINUX
1516 NdisMoveMemory(skb_push(pRxPkt, LENGTH_802_3), Header802_3, LENGTH_802_3);
1517 #endif
1518 }
1519 #endif // CONFIG_STA_SUPPORT //
1520 }
1521 }
1522
1523
1524 #define INDICATE_LEGACY_OR_AMSDU(_pAd, _pRxBlk, _fromWhichBSSID) \
1525 do \
1526 { \
1527 if (RX_BLK_TEST_FLAG(_pRxBlk, fRX_AMSDU)) \
1528 { \
1529 Indicate_AMSDU_Packet(_pAd, _pRxBlk, _fromWhichBSSID); \
1530 } \
1531 else if (RX_BLK_TEST_FLAG(_pRxBlk, fRX_EAP)) \
1532 { \
1533 Indicate_EAPOL_Packet(_pAd, _pRxBlk, _fromWhichBSSID); \
1534 } \
1535 else \
1536 { \
1537 Indicate_Legacy_Packet(_pAd, _pRxBlk, _fromWhichBSSID); \
1538 } \
1539 } while (0);
1540
1541
1542
1543 static VOID ba_enqueue_reordering_packet(
1544 IN PRTMP_ADAPTER pAd,
1545 IN PBA_REC_ENTRY pBAEntry,
1546 IN RX_BLK *pRxBlk,
1547 IN UCHAR FromWhichBSSID)
1548 {
1549 struct reordering_mpdu *mpdu_blk;
1550 UINT16 Sequence = (UINT16) pRxBlk->pHeader->Sequence;
1551
1552 mpdu_blk = ba_mpdu_blk_alloc(pAd);
1553 if (mpdu_blk != NULL)
1554 {
1555 // Write RxD buffer address & allocated buffer length
1556 NdisAcquireSpinLock(&pBAEntry->RxReRingLock);
1557
1558 mpdu_blk->Sequence = Sequence;
1559
1560 mpdu_blk->bAMSDU = RX_BLK_TEST_FLAG(pRxBlk, fRX_AMSDU);
1561
1562 convert_reordering_packet_to_preAMSDU_or_802_3_packet(pAd, pRxBlk, FromWhichBSSID);
1563
1564 STATS_INC_RX_PACKETS(pAd, FromWhichBSSID);
1565
1566 //
1567 // it is necessary for reordering packet to record
1568 // which BSS it come from
1569 //
1570 RTMP_SET_PACKET_IF(pRxBlk->pRxPacket, FromWhichBSSID);
1571
1572 mpdu_blk->pPacket = pRxBlk->pRxPacket;
1573
1574 if (ba_reordering_mpdu_insertsorted(&pBAEntry->list, mpdu_blk) == FALSE)
1575 {
1576 // had been already within reordering list
1577 // don't indicate
1578 RELEASE_NDIS_PACKET(pAd, pRxBlk->pRxPacket, NDIS_STATUS_SUCCESS);
1579 ba_mpdu_blk_free(pAd, mpdu_blk);
1580 }
1581
1582 ASSERT((0<= pBAEntry->list.qlen) && (pBAEntry->list.qlen <= pBAEntry->BAWinSize));
1583 NdisReleaseSpinLock(&pBAEntry->RxReRingLock);
1584 }
1585 else
1586 {
1587 #if 0
1588 DBGPRINT(RT_DEBUG_ERROR, ("!!! (%d:%d) Can't allocate reordering mpdu blk\n",
1589 blk_count, pBAEntry->list.qlen));
1590 #else
1591 DBGPRINT(RT_DEBUG_ERROR, ("!!! (%d) Can't allocate reordering mpdu blk\n",
1592 pBAEntry->list.qlen));
1593 #endif
1594 /*
1595 * flush all pending reordering mpdus
1596 * and receving mpdu to upper layer
1597 * make tcp/ip to take care reordering mechanism
1598 */
1599 //ba_refresh_reordering_mpdus(pAd, pBAEntry);
1600 ba_indicate_reordering_mpdus_le_seq(pAd, pBAEntry, Sequence);
1601
1602 pBAEntry->LastIndSeq = Sequence;
1603 INDICATE_LEGACY_OR_AMSDU(pAd, pRxBlk, FromWhichBSSID);
1604 }
1605 }
1606
1607
1608 /*
1609 ==========================================================================
1610 Description:
1611 Indicate this packet to upper layer or put it into reordering buffer
1612
1613 Parametrs:
1614 pRxBlk : carry necessary packet info 802.11 format
1615 FromWhichBSSID : the packet received from which BSS
1616
1617 Return :
1618 none
1619
1620 Note :
1621 the packet queued into reordering buffer need to cover to 802.3 format
1622 or pre_AMSDU format
1623 ==========================================================================
1624 */
1625
1626 VOID Indicate_AMPDU_Packet(
1627 IN PRTMP_ADAPTER pAd,
1628 IN RX_BLK *pRxBlk,
1629 IN UCHAR FromWhichBSSID)
1630 {
1631 USHORT Idx;
1632 PBA_REC_ENTRY pBAEntry = NULL;
1633 UINT16 Sequence = pRxBlk->pHeader->Sequence;
1634 ULONG Now32;
1635 UCHAR Wcid = pRxBlk->pRxWI->WirelessCliID;
1636 UCHAR TID = pRxBlk->pRxWI->TID;
1637
1638
1639 if (!RX_BLK_TEST_FLAG(pRxBlk, fRX_AMSDU) && (pRxBlk->DataSize > MAX_RX_PKT_LEN))
1640 {
1641 #if 0 // sample take off, no use
1642 static int err_size;
1643
1644 err_size++;
1645 if (err_size > 20) {
1646 printk("AMPDU DataSize = %d\n", pRxBlk->DataSize);
1647 hex_dump("802.11 Header", (UCHAR *)pRxBlk->pHeader, 24);
1648 hex_dump("Payload", pRxBlk->pData, 64);
1649 err_size = 0;
1650 }
1651 #endif
1652 // release packet
1653 RELEASE_NDIS_PACKET(pAd, pRxBlk->pRxPacket, NDIS_STATUS_FAILURE);
1654 return;
1655 }
1656
1657
1658 #if 0 // test
1659 /* Rec BA Session had been torn down */
1660 INDICATE_LEGACY_OR_AMSDU(pAd, pRxBlk, FromWhichBSSID);
1661 return;
1662 #endif
1663
1664 if (Wcid < MAX_LEN_OF_MAC_TABLE)
1665 {
1666 Idx = pAd->MacTab.Content[Wcid].BARecWcidArray[TID];
1667 if (Idx == 0)
1668 {
1669 /* Rec BA Session had been torn down */
1670 INDICATE_LEGACY_OR_AMSDU(pAd, pRxBlk, FromWhichBSSID);
1671 return;
1672 }
1673 pBAEntry = &pAd->BATable.BARecEntry[Idx];
1674 }
1675 else
1676 {
1677 // impossible !!!
1678 ASSERT(0);
1679 // release packet
1680 RELEASE_NDIS_PACKET(pAd, pRxBlk->pRxPacket, NDIS_STATUS_FAILURE);
1681 return;
1682 }
1683
1684 ASSERT(pBAEntry);
1685
1686 // update last rx time
1687 NdisGetSystemUpTime(&Now32);
1688
1689 pBAEntry->rcvSeq = Sequence;
1690
1691
1692 ba_flush_reordering_timeout_mpdus(pAd, pBAEntry, Now32);
1693 pBAEntry->LastIndSeqAtTimer = Now32;
1694
1695 //
1696 // Reset Last Indicate Sequence
1697 //
1698 if (pBAEntry->LastIndSeq == RESET_RCV_SEQ)
1699 {
1700 ASSERT((pBAEntry->list.qlen == 0) && (pBAEntry->list.next == NULL));
1701
1702 // reset rcv sequence of BA session
1703 pBAEntry->LastIndSeq = Sequence;
1704 pBAEntry->LastIndSeqAtTimer = Now32;
1705 INDICATE_LEGACY_OR_AMSDU(pAd, pRxBlk, FromWhichBSSID);
1706 return;
1707 }
1708
1709
1710 //
1711 // I. Check if in order.
1712 //
1713 if (SEQ_STEPONE(Sequence, pBAEntry->LastIndSeq, MAXSEQ))
1714 {
1715 USHORT LastIndSeq;
1716
1717 pBAEntry->LastIndSeq = Sequence;
1718 INDICATE_LEGACY_OR_AMSDU(pAd, pRxBlk, FromWhichBSSID);
1719 LastIndSeq = ba_indicate_reordering_mpdus_in_order(pAd, pBAEntry, pBAEntry->LastIndSeq);
1720 if (LastIndSeq != RESET_RCV_SEQ)
1721 {
1722 pBAEntry->LastIndSeq = LastIndSeq;
1723 }
1724 pBAEntry->LastIndSeqAtTimer = Now32;
1725 }
1726 //
1727 // II. Drop Duplicated Packet
1728 //
1729 else if (Sequence == pBAEntry->LastIndSeq)
1730 {
1731
1732 // drop and release packet
1733 pBAEntry->nDropPacket++;
1734 RELEASE_NDIS_PACKET(pAd, pRxBlk->pRxPacket, NDIS_STATUS_FAILURE);
1735 }
1736 //
1737 // III. Drop Old Received Packet
1738 //
1739 else if (SEQ_SMALLER(Sequence, pBAEntry->LastIndSeq, MAXSEQ))
1740 {
1741
1742 // drop and release packet
1743 pBAEntry->nDropPacket++;
1744 RELEASE_NDIS_PACKET(pAd, pRxBlk->pRxPacket, NDIS_STATUS_FAILURE);
1745 }
1746 //
1747 // IV. Receive Sequence within Window Size
1748 //
1749 else if (SEQ_SMALLER(Sequence, (((pBAEntry->LastIndSeq+pBAEntry->BAWinSize+1)) & MAXSEQ), MAXSEQ))
1750 {
1751 ba_enqueue_reordering_packet(pAd, pBAEntry, pRxBlk, FromWhichBSSID);
1752 }
1753 //
1754 // V. Receive seq surpasses Win(lastseq + nMSDU). So refresh all reorder buffer
1755 //
1756 else
1757 {
1758 #if 0
1759 ba_refresh_reordering_mpdus(pAd, pBAEntry);
1760 INDICATE_LEGACY_OR_AMSDU(pAd, pRxBlk, FromWhichBSSID);
1761 #else
1762 LONG WinStartSeq, TmpSeq;
1763
1764
1765 TmpSeq = Sequence - (pBAEntry->BAWinSize) -1;
1766 if (TmpSeq < 0)
1767 {
1768 TmpSeq = (MAXSEQ+1) + TmpSeq;
1769 }
1770 WinStartSeq = (TmpSeq+1) & MAXSEQ;
1771 ba_indicate_reordering_mpdus_le_seq(pAd, pBAEntry, WinStartSeq);
1772 pBAEntry->LastIndSeq = WinStartSeq; //TmpSeq;
1773
1774 pBAEntry->LastIndSeqAtTimer = Now32;
1775
1776 ba_enqueue_reordering_packet(pAd, pBAEntry, pRxBlk, FromWhichBSSID);
1777
1778 TmpSeq = ba_indicate_reordering_mpdus_in_order(pAd, pBAEntry, pBAEntry->LastIndSeq);
1779 if (TmpSeq != RESET_RCV_SEQ)
1780 {
1781 pBAEntry->LastIndSeq = TmpSeq;
1782 }
1783 #endif
1784 }
1785 }
1786
1787 #endif // DOT11_N_SUPPORT //
1788
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