drivers/staging/rt2860/common/ba_action.c

   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 #include "../rt_config.h"
  29
  30
  31
  32 #define BA_ORI_INIT_SEQ         (pEntry->TxSeq[TID]) //1                        // inital sequence number of BA session
  33
  34 #define ORI_SESSION_MAX_RETRY   8
  35 #define ORI_BA_SESSION_TIMEOUT  (2000)  // ms
  36 #define REC_BA_SESSION_IDLE_TIMEOUT     (1000)  // ms
  37
  38 #define REORDERING_PACKET_TIMEOUT               ((100 * OS_HZ)/1000)    // system ticks -- 100 ms
  39 #define MAX_REORDERING_PACKET_TIMEOUT   ((3000 * OS_HZ)/1000)   // system ticks -- 100 ms
  40
  41 #define RESET_RCV_SEQ           (0xFFFF)
  42
  43 static void ba_mpdu_blk_free(PRTMP_ADAPTER pAd, struct reordering_mpdu *mpdu_blk);
  44
  45
  46 BA_ORI_ENTRY *BATableAllocOriEntry(
  47                                                                   IN  PRTMP_ADAPTER   pAd,
  48                                                                   OUT USHORT          *Idx);
  49
  50 BA_REC_ENTRY *BATableAllocRecEntry(
  51                                                                   IN  PRTMP_ADAPTER   pAd,
  52                                                                   OUT USHORT          *Idx);
  53
  54 VOID BAOriSessionSetupTimeout(
  55     IN PVOID SystemSpecific1,
  56     IN PVOID FunctionContext,
  57     IN PVOID SystemSpecific2,
  58     IN PVOID SystemSpecific3);
  59
  60 VOID BARecSessionIdleTimeout(
  61     IN PVOID SystemSpecific1,
  62     IN PVOID FunctionContext,
  63     IN PVOID SystemSpecific2,
  64     IN PVOID SystemSpecific3);
  65
  66
  67 BUILD_TIMER_FUNCTION(BAOriSessionSetupTimeout);
  68 BUILD_TIMER_FUNCTION(BARecSessionIdleTimeout);
  69
  70 #define ANNOUNCE_REORDERING_PACKET(_pAd, _mpdu_blk)     \
  71                         Announce_Reordering_Packet(_pAd, _mpdu_blk);
  72
  73 VOID BA_MaxWinSizeReasign(
  74         IN PRTMP_ADAPTER        pAd,
  75         IN MAC_TABLE_ENTRY  *pEntryPeer,
  76         OUT UCHAR                       *pWinSize)
  77 {
  78         UCHAR MaxSize;
  79
  80
  81         if (pAd->MACVersion >= RALINK_2883_VERSION) // 3*3
  82         {
  83                 if (pAd->MACVersion >= RALINK_3070_VERSION)
  84                 {
  85                         if (pEntryPeer->WepStatus != Ndis802_11EncryptionDisabled)
  86                                 MaxSize = 7; // for non-open mode
  87                         else
  88                                 MaxSize = 13;
  89                 }
  90                 else
  91                         MaxSize = 31;
  92         }
  93         else if (pAd->MACVersion >= RALINK_2880E_VERSION) // 2880 e
  94         {
  95                 if (pEntryPeer->WepStatus != Ndis802_11EncryptionDisabled)
  96                         MaxSize = 7; // for non-open mode
  97                 else
  98                         MaxSize = 13;
  99         }
 100         else
 101                 MaxSize = 7;
 102
 103         DBGPRINT(RT_DEBUG_TRACE, ("ba> Win Size = %d, Max Size = %d\n",
 104                         *pWinSize, MaxSize));
 105
 106         if ((*pWinSize) > MaxSize)
 107         {
 108                 DBGPRINT(RT_DEBUG_TRACE, ("ba> reassign max win size from %d to %d\n",
 109                                 *pWinSize, MaxSize));
 110
 111                 *pWinSize = MaxSize;
 112         }
 113 }
 114
 115 void Announce_Reordering_Packet(IN PRTMP_ADAPTER                        pAd,
 116                                                                 IN struct reordering_mpdu       *mpdu)
 117 {
 118         PNDIS_PACKET    pPacket;
 119
 120         pPacket = mpdu->pPacket;
 121
 122         if (mpdu->bAMSDU)
 123         {
 124                 ASSERT(0);
 125                 BA_Reorder_AMSDU_Annnounce(pAd, pPacket);
 126         }
 127         else
 128         {
 129                 //
 130                 // pass this 802.3 packet to upper layer or forward this packet to WM directly
 131                 //
 132
 133                 ANNOUNCE_OR_FORWARD_802_3_PACKET(pAd, pPacket, RTMP_GET_PACKET_IF(pPacket));
 134         }
 135 }
 136
 137 /*
 138  * Insert a reordering mpdu into sorted linked list by sequence no.
 139  */
 140 BOOLEAN ba_reordering_mpdu_insertsorted(struct reordering_list *list, struct reordering_mpdu *mpdu)
 141 {
 142
 143         struct reordering_mpdu **ppScan = &list->next;
 144
 145         while (*ppScan != NULL)
 146         {
 147                 if (SEQ_SMALLER((*ppScan)->Sequence, mpdu->Sequence, MAXSEQ))
 148                 {
 149                         ppScan = &(*ppScan)->next;
 150                 }
 151                 else if ((*ppScan)->Sequence == mpdu->Sequence)
 152                 {
 153                         /* give up this duplicated frame */
 154                         return(FALSE);
 155                 }
 156                 else
 157                 {
 158                         /* find position */
 159                         break;
 160                 }
 161         }
 162
 163         mpdu->next = *ppScan;
 164         *ppScan = mpdu;
 165         list->qlen++;
 166         return TRUE;
 167 }
 168
 169
 170 /*
 171  * caller lock critical section if necessary
 172  */
 173 static inline void ba_enqueue(struct reordering_list *list, struct reordering_mpdu *mpdu_blk)
 174 {
 175         list->qlen++;
 176         mpdu_blk->next = list->next;
 177         list->next = mpdu_blk;
 178 }
 179
 180 /*
 181  * caller lock critical section if necessary
 182  */
 183 static inline struct reordering_mpdu * ba_dequeue(struct reordering_list *list)
 184 {
 185         struct reordering_mpdu *mpdu_blk = NULL;
 186
 187         ASSERT(list);
 188
 189                 if (list->qlen)
 190                 {
 191                         list->qlen--;
 192                         mpdu_blk = list->next;
 193                         if (mpdu_blk)
 194                         {
 195                                 list->next = mpdu_blk->next;
 196                                 mpdu_blk->next = NULL;
 197                         }
 198                 }
 199         return mpdu_blk;
 200 }
 201
 202
 203 static inline struct reordering_mpdu  *ba_reordering_mpdu_dequeue(struct reordering_list *list)
 204 {
 205         return(ba_dequeue(list));
 206 }
 207
 208
 209 static inline struct reordering_mpdu  *ba_reordering_mpdu_probe(struct reordering_list *list)
 210         {
 211         ASSERT(list);
 212
 213                 return(list->next);
 214         }
 215
 216
 217 /*
 218  * free all resource for reordering mechanism
 219  */
 220 void ba_reordering_resource_release(PRTMP_ADAPTER pAd)
 221 {
 222         BA_TABLE        *Tab;
 223         PBA_REC_ENTRY   pBAEntry;
 224         struct reordering_mpdu *mpdu_blk;
 225         int i;
 226
 227         Tab = &pAd->BATable;
 228
 229         /* I.  release all pending reordering packet */
 230         NdisAcquireSpinLock(&pAd->BATabLock);
 231         for (i = 0; i < MAX_LEN_OF_BA_REC_TABLE; i++)
 232         {
 233                 pBAEntry = &Tab->BARecEntry[i];
 234                 if (pBAEntry->REC_BA_Status != Recipient_NONE)
 235                 {
 236                         while ((mpdu_blk = ba_reordering_mpdu_dequeue(&pBAEntry->list)))
 237                         {
 238                                 ASSERT(mpdu_blk->pPacket);
 239                                 RELEASE_NDIS_PACKET(pAd, mpdu_blk->pPacket, NDIS_STATUS_FAILURE);
 240                                 ba_mpdu_blk_free(pAd, mpdu_blk);
 241                         }
 242                 }
 243         }
 244         NdisReleaseSpinLock(&pAd->BATabLock);
 245
 246         ASSERT(pBAEntry->list.qlen == 0);
 247         /* II. free memory of reordering mpdu table */
 248         NdisAcquireSpinLock(&pAd->mpdu_blk_pool.lock);
 249         os_free_mem(pAd, pAd->mpdu_blk_pool.mem);
 250         NdisReleaseSpinLock(&pAd->mpdu_blk_pool.lock);
 251 }
 252
 253
 254
 255 /*
 256  * Allocate all resource for reordering mechanism
 257  */
 258 BOOLEAN ba_reordering_resource_init(PRTMP_ADAPTER pAd, int num)
 259 {
 260         int     i;
 261         PUCHAR  mem;
 262         struct reordering_mpdu *mpdu_blk;
 263         struct reordering_list *freelist;
 264
 265         /* allocate spinlock */
 266         NdisAllocateSpinLock(&pAd->mpdu_blk_pool.lock);
 267
 268         /* initialize freelist */
 269         freelist = &pAd->mpdu_blk_pool.freelist;
 270         freelist->next = NULL;
 271         freelist->qlen = 0;
 272
 273         DBGPRINT(RT_DEBUG_TRACE, ("Allocate %d memory for BA reordering\n", (UINT32)(num*sizeof(struct reordering_mpdu))));
 274
 275         /* allocate number of mpdu_blk memory */
 276         os_alloc_mem(pAd, (PUCHAR *)&mem, (num*sizeof(struct reordering_mpdu)));
 277
 278         pAd->mpdu_blk_pool.mem = mem;
 279
 280         if (mem == NULL)
 281         {
 282                 DBGPRINT(RT_DEBUG_ERROR, ("Can't Allocate Memory for BA Reordering\n"));
 283                 return(FALSE);
 284         }
 285
 286         /* build mpdu_blk free list */
 287         for (i=0; i<num; i++)
 288         {
 289                 /* get mpdu_blk */
 290                 mpdu_blk = (struct reordering_mpdu *) mem;
 291                 /* initial mpdu_blk */
 292                 NdisZeroMemory(mpdu_blk, sizeof(struct reordering_mpdu));
 293                 /* next mpdu_blk */
 294                 mem += sizeof(struct reordering_mpdu);
 295                 /* insert mpdu_blk into freelist */
 296                 ba_enqueue(freelist, mpdu_blk);
 297         }
 298
 299         return(TRUE);
 300 }
 301
 302 //static int blk_count=0; // sample take off, no use
 303
 304 static struct reordering_mpdu *ba_mpdu_blk_alloc(PRTMP_ADAPTER pAd)
 305 {
 306         struct reordering_mpdu *mpdu_blk;
 307
 308         NdisAcquireSpinLock(&pAd->mpdu_blk_pool.lock);
 309         mpdu_blk = ba_dequeue(&pAd->mpdu_blk_pool.freelist);
 310         if (mpdu_blk)
 311         {
 312 //              blk_count++;
 313                 /* reset mpdu_blk */
 314                 NdisZeroMemory(mpdu_blk, sizeof(struct reordering_mpdu));
 315         }
 316         NdisReleaseSpinLock(&pAd->mpdu_blk_pool.lock);
 317         return mpdu_blk;
 318 }
 319
 320 static void ba_mpdu_blk_free(PRTMP_ADAPTER pAd, struct reordering_mpdu *mpdu_blk)
 321 {
 322         ASSERT(mpdu_blk);
 323
 324         NdisAcquireSpinLock(&pAd->mpdu_blk_pool.lock);
 325 //      blk_count--;
 326         ba_enqueue(&pAd->mpdu_blk_pool.freelist, mpdu_blk);
 327         NdisReleaseSpinLock(&pAd->mpdu_blk_pool.lock);
 328 }
 329
 330
 331 static USHORT ba_indicate_reordering_mpdus_in_order(
 332                                                                                                    IN PRTMP_ADAPTER    pAd,
 333                                                                                                    IN PBA_REC_ENTRY    pBAEntry,
 334                                                                                                    IN USHORT           StartSeq)
 335 {
 336         struct reordering_mpdu *mpdu_blk;
 337         USHORT  LastIndSeq = RESET_RCV_SEQ;
 338
 339         NdisAcquireSpinLock(&pBAEntry->RxReRingLock);
 340
 341         while ((mpdu_blk = ba_reordering_mpdu_probe(&pBAEntry->list)))
 342                 {
 343                         /* find in-order frame */
 344                 if (!SEQ_STEPONE(mpdu_blk->Sequence, StartSeq, MAXSEQ))
 345                         {
 346                                 break;
 347                         }
 348                         /* dequeue in-order frame from reodering list */
 349                         mpdu_blk = ba_reordering_mpdu_dequeue(&pBAEntry->list);
 350                         /* pass this frame up */
 351                 ANNOUNCE_REORDERING_PACKET(pAd, mpdu_blk);
 352                 /* move to next sequence */
 353                         StartSeq = mpdu_blk->Sequence;
 354                 LastIndSeq = StartSeq;
 355                 /* free mpdu_blk */
 356                         ba_mpdu_blk_free(pAd, mpdu_blk);
 357         }
 358
 359         NdisReleaseSpinLock(&pBAEntry->RxReRingLock);
 360
 361         /* update last indicated sequence */
 362         return LastIndSeq;
 363 }
 364
 365 static void ba_indicate_reordering_mpdus_le_seq(
 366                                                                                            IN PRTMP_ADAPTER    pAd,
 367                                                                                            IN PBA_REC_ENTRY    pBAEntry,
 368                                                                                            IN USHORT           Sequence)
 369 {
 370         struct reordering_mpdu *mpdu_blk;
 371
 372         NdisAcquireSpinLock(&pBAEntry->RxReRingLock);
 373         while ((mpdu_blk = ba_reordering_mpdu_probe(&pBAEntry->list)))
 374                 {
 375                         /* find in-order frame */
 376                 if ((mpdu_blk->Sequence == Sequence) || SEQ_SMALLER(mpdu_blk->Sequence, Sequence, MAXSEQ))
 377                 {
 378                         /* dequeue in-order frame from reodering list */
 379                         mpdu_blk = ba_reordering_mpdu_dequeue(&pBAEntry->list);
 380                         /* pass this frame up */
 381                         ANNOUNCE_REORDERING_PACKET(pAd, mpdu_blk);
 382                         /* free mpdu_blk */
 383                         ba_mpdu_blk_free(pAd, mpdu_blk);
 384                 }
 385                 else
 386                         {
 387                                 break;
 388                         }
 389         }
 390         NdisReleaseSpinLock(&pBAEntry->RxReRingLock);
 391 }
 392
 393
 394 static void ba_refresh_reordering_mpdus(
 395                                                                            IN PRTMP_ADAPTER    pAd,
 396                                                                            PBA_REC_ENTRY       pBAEntry)
 397 {
 398         struct reordering_mpdu *mpdu_blk;
 399
 400         NdisAcquireSpinLock(&pBAEntry->RxReRingLock);
 401
 402                         /* dequeue in-order frame from reodering list */
 403         while ((mpdu_blk = ba_reordering_mpdu_dequeue(&pBAEntry->list)))
 404         {
 405                         /* pass this frame up */
 406                 ANNOUNCE_REORDERING_PACKET(pAd, mpdu_blk);
 407
 408                 pBAEntry->LastIndSeq = mpdu_blk->Sequence;
 409                         ba_mpdu_blk_free(pAd, mpdu_blk);
 410
 411                 /* update last indicated sequence */
 412         }
 413         ASSERT(pBAEntry->list.qlen == 0);
 414         pBAEntry->LastIndSeq = RESET_RCV_SEQ;
 415         NdisReleaseSpinLock(&pBAEntry->RxReRingLock);
 416 }
 417
 418
 419 //static
 420 void ba_flush_reordering_timeout_mpdus(
 421                                                                         IN PRTMP_ADAPTER    pAd,
 422                                                                         IN PBA_REC_ENTRY    pBAEntry,
 423                                                                         IN ULONG            Now32)
 424
 425 {
 426         USHORT Sequence;
 427
 428 //      if ((RTMP_TIME_AFTER((unsigned long)Now32, (unsigned long)(pBAEntry->LastIndSeqAtTimer+REORDERING_PACKET_TIMEOUT)) &&
 429 //               (pBAEntry->list.qlen > ((pBAEntry->BAWinSize*7)/8))) //||
 430 //              (RTMP_TIME_AFTER((unsigned long)Now32, (unsigned long)(pBAEntry->LastIndSeqAtTimer+(10*REORDERING_PACKET_TIMEOUT))) &&
 431 //               (pBAEntry->list.qlen > (pBAEntry->BAWinSize/8)))
 432         if (RTMP_TIME_AFTER((unsigned long)Now32, (unsigned long)(pBAEntry->LastIndSeqAtTimer+(MAX_REORDERING_PACKET_TIMEOUT/6)))
 433                  &&(pBAEntry->list.qlen > 1)
 434                 )
 435         {
 436                 DBGPRINT(RT_DEBUG_TRACE,("timeout[%d] (%08lx-%08lx = %d > %d): %x, flush all!\n ", pBAEntry->list.qlen, Now32, (pBAEntry->LastIndSeqAtTimer),
 437                            (int)((long) Now32 - (long)(pBAEntry->LastIndSeqAtTimer)), MAX_REORDERING_PACKET_TIMEOUT,
 438                            pBAEntry->LastIndSeq));
 439                 ba_refresh_reordering_mpdus(pAd, pBAEntry);
 440                 pBAEntry->LastIndSeqAtTimer = Now32;
 441         }
 442         else
 443         if (RTMP_TIME_AFTER((unsigned long)Now32, (unsigned long)(pBAEntry->LastIndSeqAtTimer+(REORDERING_PACKET_TIMEOUT)))
 444                 && (pBAEntry->list.qlen > 0)
 445            )
 446                 {
 447                 //
 448                 // force LastIndSeq to shift to LastIndSeq+1
 449                 //
 450                 Sequence = (pBAEntry->LastIndSeq+1) & MAXSEQ;
 451                 ba_indicate_reordering_mpdus_le_seq(pAd, pBAEntry, Sequence);
 452                 pBAEntry->LastIndSeqAtTimer = Now32;
 453                         pBAEntry->LastIndSeq = Sequence;
 454                 //
 455                 // indicate in-order mpdus
 456                 //
 457                 Sequence = ba_indicate_reordering_mpdus_in_order(pAd, pBAEntry, Sequence);
 458                 if (Sequence != RESET_RCV_SEQ)
 459                 {
 460                         pBAEntry->LastIndSeq = Sequence;
 461                 }
 462
 463                 DBGPRINT(RT_DEBUG_OFF, ("%x, flush one!\n", pBAEntry->LastIndSeq));
 464
 465         }
 466 }
 467
 468
 469 /*
 470  * generate ADDBA request to
 471  * set up BA agreement
 472  */
 473 VOID BAOriSessionSetUp(
 474                                           IN PRTMP_ADAPTER    pAd,
 475                                           IN MAC_TABLE_ENTRY  *pEntry,
 476                                           IN UCHAR            TID,
 477                                           IN USHORT           TimeOut,
 478                                           IN ULONG            DelayTime,
 479                                           IN BOOLEAN          isForced)
 480
 481 {
 482         //MLME_ADDBA_REQ_STRUCT AddbaReq;
 483         BA_ORI_ENTRY            *pBAEntry = NULL;
 484         USHORT                  Idx;
 485         BOOLEAN                 Cancelled;
 486
 487         if ((pAd->CommonCfg.BACapability.field.AutoBA != TRUE)  &&  (isForced == FALSE))
 488                 return;
 489
 490         // if this entry is limited to use legacy tx mode, it doesn't generate BA.
 491         if (RTMPStaFixedTxMode(pAd, pEntry) != FIXED_TXMODE_HT)
 492                 return;
 493
 494         if ((pEntry->BADeclineBitmap & (1<<TID)) && (isForced == FALSE))
 495         {
 496                 // try again after 3 secs
 497                 DelayTime = 3000;
 498 //              DBGPRINT(RT_DEBUG_TRACE, ("DeCline BA from Peer\n"));
 499 //              return;
 500         }
 501
 502
 503         Idx = pEntry->BAOriWcidArray[TID];
 504         if (Idx == 0)
 505         {
 506                 // allocate a BA session
 507                 pBAEntry = BATableAllocOriEntry(pAd, &Idx);
 508                 if (pBAEntry == NULL)
 509                 {
 510                         DBGPRINT(RT_DEBUG_TRACE,("ADDBA - MlmeADDBAAction() allocate BA session failed \n"));
 511                         return;
 512                 }
 513         }
 514         else
 515         {
 516                 pBAEntry =&pAd->BATable.BAOriEntry[Idx];
 517         }
 518
 519         if (pBAEntry->ORI_BA_Status >= Originator_WaitRes)
 520         {
 521                 return;
 522         }
 523
 524         pEntry->BAOriWcidArray[TID] = Idx;
 525
 526         // Initialize BA session
 527         pBAEntry->ORI_BA_Status = Originator_WaitRes;
 528         pBAEntry->Wcid = pEntry->Aid;
 529         pBAEntry->BAWinSize = pAd->CommonCfg.BACapability.field.RxBAWinLimit;
 530         pBAEntry->Sequence = BA_ORI_INIT_SEQ;
 531         pBAEntry->Token = 1;    // (2008-01-21) Jan Lee recommends it - this token can't be 0
 532         pBAEntry->TID = TID;
 533         pBAEntry->TimeOutValue = TimeOut;
 534         pBAEntry->pAdapter = pAd;
 535
 536         if (!(pEntry->TXBAbitmap & (1<<TID)))
 537         {
 538                 RTMPInitTimer(pAd, &pBAEntry->ORIBATimer, GET_TIMER_FUNCTION(BAOriSessionSetupTimeout), pBAEntry, FALSE);
 539         }
 540         else
 541                 RTMPCancelTimer(&pBAEntry->ORIBATimer, &Cancelled);
 542
 543         // set timer to send ADDBA request
 544         RTMPSetTimer(&pBAEntry->ORIBATimer, DelayTime);
 545 }
 546
 547 VOID BAOriSessionAdd(
 548                         IN PRTMP_ADAPTER    pAd,
 549                                         IN MAC_TABLE_ENTRY  *pEntry,
 550                         IN PFRAME_ADDBA_RSP pFrame)
 551 {
 552         BA_ORI_ENTRY  *pBAEntry = NULL;
 553         BOOLEAN       Cancelled;
 554         UCHAR         TID;
 555         USHORT        Idx;
 556         PUCHAR          pOutBuffer2 = NULL;
 557         NDIS_STATUS     NStatus;
 558         ULONG           FrameLen;
 559         FRAME_BAR       FrameBar;
 560
 561         TID = pFrame->BaParm.TID;
 562         Idx = pEntry->BAOriWcidArray[TID];
 563         pBAEntry =&pAd->BATable.BAOriEntry[Idx];
 564
 565         // Start fill in parameters.
 566         if ((Idx !=0) && (pBAEntry->TID == TID) && (pBAEntry->ORI_BA_Status == Originator_WaitRes))
 567         {
 568                 pBAEntry->BAWinSize = min(pBAEntry->BAWinSize, ((UCHAR)pFrame->BaParm.BufSize));
 569                 BA_MaxWinSizeReasign(pAd, pEntry, &pBAEntry->BAWinSize);
 570
 571                 pBAEntry->TimeOutValue = pFrame->TimeOutValue;
 572                 pBAEntry->ORI_BA_Status = Originator_Done;
 573                 pAd->BATable.numDoneOriginator ++;
 574
 575                 // reset sequence number
 576                 pBAEntry->Sequence = BA_ORI_INIT_SEQ;
 577                 // Set Bitmap flag.
 578                 pEntry->TXBAbitmap |= (1<<TID);
 579                                 RTMPCancelTimer(&pBAEntry->ORIBATimer, &Cancelled);
 580
 581                 pBAEntry->ORIBATimer.TimerValue = 0;    //pFrame->TimeOutValue;
 582
 583                 DBGPRINT(RT_DEBUG_TRACE,("%s : TXBAbitmap = %x, BAWinSize = %d, TimeOut = %ld\n", __func__, pEntry->TXBAbitmap,
 584                                                                  pBAEntry->BAWinSize, pBAEntry->ORIBATimer.TimerValue));
 585
 586                 // SEND BAR ;
 587                 NStatus = MlmeAllocateMemory(pAd, &pOutBuffer2);  //Get an unused nonpaged memory
 588                 if (NStatus != NDIS_STATUS_SUCCESS)
 589                 {
 590                         DBGPRINT(RT_DEBUG_TRACE,("BA - BAOriSessionAdd() allocate memory failed \n"));
 591                         return;
 592                 }
 593
 594                 BarHeaderInit(pAd, &FrameBar, pAd->MacTab.Content[pBAEntry->Wcid].Addr, pAd->CurrentAddress);
 595
 596                 FrameBar.StartingSeq.field.FragNum = 0; // make sure sequence not clear in DEL function.
 597                 FrameBar.StartingSeq.field.StartSeq = pBAEntry->Sequence; // make sure sequence not clear in DEL funciton.
 598                 FrameBar.BarControl.TID = pBAEntry->TID; // make sure sequence not clear in DEL funciton.
 599                 MakeOutgoingFrame(pOutBuffer2,              &FrameLen,
 600                                                   sizeof(FRAME_BAR),      &FrameBar,
 601                                           END_OF_ARGS);
 602                 MiniportMMRequest(pAd, QID_AC_BE, pOutBuffer2, FrameLen);
 603                 MlmeFreeMemory(pAd, pOutBuffer2);
 604
 605
 606                 if (pBAEntry->ORIBATimer.TimerValue)
 607                         RTMPSetTimer(&pBAEntry->ORIBATimer, pBAEntry->ORIBATimer.TimerValue); // in mSec
 608         }
 609 }
 610
 611 BOOLEAN BARecSessionAdd(
 612                                            IN PRTMP_ADAPTER    pAd,
 613                                            IN MAC_TABLE_ENTRY  *pEntry,
 614                                            IN PFRAME_ADDBA_REQ pFrame)
 615 {
 616         BA_REC_ENTRY            *pBAEntry = NULL;
 617         BOOLEAN                 Status = TRUE;
 618         BOOLEAN                 Cancelled;
 619         USHORT                  Idx;
 620         UCHAR                   TID;
 621         UCHAR                   BAWinSize;
 622         //UINT32                  Value;
 623         //UINT                    offset;
 624
 625
 626         ASSERT(pEntry);
 627
 628         // find TID
 629         TID = pFrame->BaParm.TID;
 630
 631         BAWinSize = min(((UCHAR)pFrame->BaParm.BufSize), (UCHAR)pAd->CommonCfg.BACapability.field.RxBAWinLimit);
 632
 633         // Intel patch
 634         if (BAWinSize == 0)
 635         {
 636                 BAWinSize = 64;
 637         }
 638
 639         Idx = pEntry->BARecWcidArray[TID];
 640
 641
 642         if (Idx == 0)
 643         {
 644                 pBAEntry = BATableAllocRecEntry(pAd, &Idx);
 645         }
 646         else
 647         {
 648                 pBAEntry = &pAd->BATable.BARecEntry[Idx];
 649                 // flush all pending reordering mpdus
 650                 ba_refresh_reordering_mpdus(pAd, pBAEntry);
 651         }
 652
 653         DBGPRINT(RT_DEBUG_TRACE,("%s(%ld): Idx = %d, BAWinSize(req %d) = %d\n", __func__, pAd->BATable.numAsRecipient, Idx,
 654                                                          pFrame->BaParm.BufSize, BAWinSize));
 655
 656         // Start fill in parameters.
 657         if (pBAEntry != NULL)
 658         {
 659                 ASSERT(pBAEntry->list.qlen == 0);
 660
 661                 pBAEntry->REC_BA_Status = Recipient_HandleRes;
 662                 pBAEntry->BAWinSize = BAWinSize;
 663                 pBAEntry->Wcid = pEntry->Aid;
 664                 pBAEntry->TID = TID;
 665                 pBAEntry->TimeOutValue = pFrame->TimeOutValue;
 666                 pBAEntry->REC_BA_Status = Recipient_Accept;
 667                 // initial sequence number
 668                 pBAEntry->LastIndSeq = RESET_RCV_SEQ; //pFrame->BaStartSeq.field.StartSeq;
 669
 670                 DBGPRINT(RT_DEBUG_OFF, ("Start Seq = %08x\n",  pFrame->BaStartSeq.field.StartSeq));
 671
 672                 if (pEntry->RXBAbitmap & (1<<TID))
 673                 {
 674                         RTMPCancelTimer(&pBAEntry->RECBATimer, &Cancelled);
 675                 }
 676                 else
 677                 {
 678                         RTMPInitTimer(pAd, &pBAEntry->RECBATimer, GET_TIMER_FUNCTION(BARecSessionIdleTimeout), pBAEntry, TRUE);
 679                 }
 680
 681                 // Set Bitmap flag.
 682                 pEntry->RXBAbitmap |= (1<<TID);
 683                 pEntry->BARecWcidArray[TID] = Idx;
 684
 685                 pEntry->BADeclineBitmap &= ~(1<<TID);
 686
 687                 // Set BA session mask in WCID table.
 688                 RTMP_ADD_BA_SESSION_TO_ASIC(pAd, pEntry->Aid, TID);
 689
 690                 DBGPRINT(RT_DEBUG_TRACE,("MACEntry[%d]RXBAbitmap = 0x%x. BARecWcidArray=%d\n",
 691                                 pEntry->Aid, pEntry->RXBAbitmap, pEntry->BARecWcidArray[TID]));
 692         }
 693         else
 694         {
 695                 Status = FALSE;
 696                 DBGPRINT(RT_DEBUG_TRACE,("Can't Accept ADDBA for %02x:%02x:%02x:%02x:%02x:%02x TID = %d\n",
 697                                 PRINT_MAC(pEntry->Addr), TID));
 698         }
 699         return(Status);
 700 }
 701
 702
 703 BA_REC_ENTRY *BATableAllocRecEntry(
 704                                                                   IN  PRTMP_ADAPTER   pAd,
 705                                                                   OUT USHORT          *Idx)
 706 {
 707         int             i;
 708         BA_REC_ENTRY    *pBAEntry = NULL;
 709
 710
 711         NdisAcquireSpinLock(&pAd->BATabLock);
 712
 713         if (pAd->BATable.numAsRecipient >= MAX_BARECI_SESSION)
 714         {
 715                 DBGPRINT(RT_DEBUG_OFF, ("BA Recipeint Session (%ld) > %d\n",
 716                                                         pAd->BATable.numAsRecipient, MAX_BARECI_SESSION));
 717                 goto done;
 718         }
 719
 720         // reserve idx 0 to identify BAWcidArray[TID] as empty
 721         for (i=1; i < MAX_LEN_OF_BA_REC_TABLE; i++)
 722         {
 723                 pBAEntry =&pAd->BATable.BARecEntry[i];
 724                 if ((pBAEntry->REC_BA_Status == Recipient_NONE))
 725                 {
 726                         // get one
 727                         pAd->BATable.numAsRecipient++;
 728                         pBAEntry->REC_BA_Status = Recipient_USED;
 729                         *Idx = i;
 730                         break;
 731                 }
 732         }
 733
 734 done:
 735         NdisReleaseSpinLock(&pAd->BATabLock);
 736         return pBAEntry;
 737 }
 738
 739 BA_ORI_ENTRY *BATableAllocOriEntry(
 740                                                                   IN  PRTMP_ADAPTER   pAd,
 741                                                                   OUT USHORT          *Idx)
 742 {
 743         int             i;
 744         BA_ORI_ENTRY    *pBAEntry = NULL;
 745
 746         NdisAcquireSpinLock(&pAd->BATabLock);
 747
 748         if (pAd->BATable.numAsOriginator >= (MAX_LEN_OF_BA_ORI_TABLE))
 749         {
 750                 goto done;
 751         }
 752
 753         // reserve idx 0 to identify BAWcidArray[TID] as empty
 754         for (i=1; i<MAX_LEN_OF_BA_ORI_TABLE; i++)
 755         {
 756                 pBAEntry =&pAd->BATable.BAOriEntry[i];
 757                 if ((pBAEntry->ORI_BA_Status == Originator_NONE))
 758                 {
 759                         // get one
 760                         pAd->BATable.numAsOriginator++;
 761                         pBAEntry->ORI_BA_Status = Originator_USED;
 762                         pBAEntry->pAdapter = pAd;
 763                         *Idx = i;
 764                         break;
 765                 }
 766         }
 767
 768 done:
 769         NdisReleaseSpinLock(&pAd->BATabLock);
 770         return pBAEntry;
 771 }
 772
 773
 774 VOID BATableFreeOriEntry(
 775                                                 IN  PRTMP_ADAPTER   pAd,
 776                                                 IN  ULONG           Idx)
 777 {
 778         BA_ORI_ENTRY    *pBAEntry = NULL;
 779         MAC_TABLE_ENTRY *pEntry;
 780
 781
 782         if ((Idx == 0) || (Idx >= MAX_LEN_OF_BA_ORI_TABLE))
 783                 return;
 784
 785         pBAEntry =&pAd->BATable.BAOriEntry[Idx];
 786
 787         if (pBAEntry->ORI_BA_Status != Originator_NONE)
 788         {
 789                 pEntry = &pAd->MacTab.Content[pBAEntry->Wcid];
 790                 pEntry->BAOriWcidArray[pBAEntry->TID] = 0;
 791
 792
 793                 NdisAcquireSpinLock(&pAd->BATabLock);
 794                 if (pBAEntry->ORI_BA_Status == Originator_Done)
 795                 {
 796                         pAd->BATable.numDoneOriginator -= 1;
 797                         pEntry->TXBAbitmap &= (~(1<<(pBAEntry->TID) ));
 798                         DBGPRINT(RT_DEBUG_TRACE, ("BATableFreeOriEntry numAsOriginator= %ld\n", pAd->BATable.numAsRecipient));
 799                         // Erase Bitmap flag.
 800                 }
 801
 802                 ASSERT(pAd->BATable.numAsOriginator != 0);
 803
 804                 pAd->BATable.numAsOriginator -= 1;
 805
 806                 pBAEntry->ORI_BA_Status = Originator_NONE;
 807                 pBAEntry->Token = 0;
 808                 NdisReleaseSpinLock(&pAd->BATabLock);
 809         }
 810 }
 811
 812
 813 VOID BATableFreeRecEntry(
 814                                                 IN  PRTMP_ADAPTER   pAd,
 815                                                 IN  ULONG           Idx)
 816 {
 817         BA_REC_ENTRY    *pBAEntry = NULL;
 818         MAC_TABLE_ENTRY *pEntry;
 819
 820
 821         if ((Idx == 0) || (Idx >= MAX_LEN_OF_BA_REC_TABLE))
 822                 return;
 823
 824         pBAEntry =&pAd->BATable.BARecEntry[Idx];
 825
 826         if (pBAEntry->REC_BA_Status != Recipient_NONE)
 827         {
 828                 pEntry = &pAd->MacTab.Content[pBAEntry->Wcid];
 829                 pEntry->BARecWcidArray[pBAEntry->TID] = 0;
 830
 831                 NdisAcquireSpinLock(&pAd->BATabLock);
 832
 833                 ASSERT(pAd->BATable.numAsRecipient != 0);
 834
 835                 pAd->BATable.numAsRecipient -= 1;
 836
 837                 pBAEntry->REC_BA_Status = Recipient_NONE;
 838                 NdisReleaseSpinLock(&pAd->BATabLock);
 839         }
 840 }
 841
 842
 843 VOID BAOriSessionTearDown(
 844                                                  IN OUT  PRTMP_ADAPTER   pAd,
 845                                                  IN      UCHAR           Wcid,
 846                                                  IN      UCHAR           TID,
 847                                                  IN      BOOLEAN         bPassive,
 848                                                  IN      BOOLEAN         bForceSend)
 849 {
 850         ULONG           Idx = 0;
 851         BA_ORI_ENTRY    *pBAEntry;
 852         BOOLEAN         Cancelled;
 853
 854         if (Wcid >= MAX_LEN_OF_MAC_TABLE)
 855         {
 856                 return;
 857         }
 858
 859         //
 860         // Locate corresponding BA Originator Entry in BA Table with the (pAddr,TID).
 861         //
 862         Idx = pAd->MacTab.Content[Wcid].BAOriWcidArray[TID];
 863         if ((Idx == 0) || (Idx >= MAX_LEN_OF_BA_ORI_TABLE))
 864         {
 865                 if (bForceSend == TRUE)
 866                 {
 867                         // force send specified TID DelBA
 868                         MLME_DELBA_REQ_STRUCT   DelbaReq;
 869                         MLME_QUEUE_ELEM *Elem = (MLME_QUEUE_ELEM *) kmalloc(sizeof(MLME_QUEUE_ELEM), MEM_ALLOC_FLAG);
 870                         if (Elem != NULL)
 871                         {
 872                         NdisZeroMemory(&DelbaReq, sizeof(DelbaReq));
 873                         NdisZeroMemory(Elem, sizeof(MLME_QUEUE_ELEM));
 874
 875                         COPY_MAC_ADDR(DelbaReq.Addr, pAd->MacTab.Content[Wcid].Addr);
 876                         DelbaReq.Wcid = Wcid;
 877                         DelbaReq.TID = TID;
 878                         DelbaReq.Initiator = ORIGINATOR;
 879                         Elem->MsgLen  = sizeof(DelbaReq);
 880                         NdisMoveMemory(Elem->Msg, &DelbaReq, sizeof(DelbaReq));
 881                         MlmeDELBAAction(pAd, Elem);
 882                         kfree(Elem);
 883                         }
 884                         else
 885                         {
 886                                 DBGPRINT(RT_DEBUG_ERROR, ("%s(bForceSend):alloc memory failed!\n", __func__));
 887                         }
 888                 }
 889
 890                 return;
 891         }
 892
 893         DBGPRINT(RT_DEBUG_TRACE,("%s===>Wcid=%d.TID=%d \n", __func__, Wcid, TID));
 894
 895         pBAEntry = &pAd->BATable.BAOriEntry[Idx];
 896         DBGPRINT(RT_DEBUG_TRACE,("\t===>Idx = %ld, Wcid=%d.TID=%d, ORI_BA_Status = %d \n", Idx, Wcid, TID, pBAEntry->ORI_BA_Status));
 897         //
 898         // Prepare DelBA action frame and send to the peer.
 899         //
 900         if ((bPassive == FALSE) && (TID == pBAEntry->TID) && (pBAEntry->ORI_BA_Status == Originator_Done))
 901         {
 902                 MLME_DELBA_REQ_STRUCT   DelbaReq;
 903                 MLME_QUEUE_ELEM *Elem = (MLME_QUEUE_ELEM *) kmalloc(sizeof(MLME_QUEUE_ELEM), MEM_ALLOC_FLAG);
 904                 if (Elem != NULL)
 905                 {
 906                 NdisZeroMemory(&DelbaReq, sizeof(DelbaReq));
 907                 NdisZeroMemory(Elem, sizeof(MLME_QUEUE_ELEM));
 908
 909                 COPY_MAC_ADDR(DelbaReq.Addr, pAd->MacTab.Content[Wcid].Addr);
 910                 DelbaReq.Wcid = Wcid;
 911                 DelbaReq.TID = pBAEntry->TID;
 912                 DelbaReq.Initiator = ORIGINATOR;
 913                 Elem->MsgLen  = sizeof(DelbaReq);
 914                 NdisMoveMemory(Elem->Msg, &DelbaReq, sizeof(DelbaReq));
 915                 MlmeDELBAAction(pAd, Elem);
 916                 kfree(Elem);
 917                 }
 918                 else
 919                 {
 920                         DBGPRINT(RT_DEBUG_ERROR, ("%s():alloc memory failed!\n", __func__));
 921                         return;
 922                 }
 923         }
 924         RTMPCancelTimer(&pBAEntry->ORIBATimer, &Cancelled);
 925         BATableFreeOriEntry(pAd, Idx);
 926
 927         if (bPassive)
 928         {
 929                 //BAOriSessionSetUp(pAd, &pAd->MacTab.Content[Wcid], TID, 0, 10000, TRUE);
 930         }
 931 }
 932
 933 VOID BARecSessionTearDown(
 934                                                  IN OUT  PRTMP_ADAPTER   pAd,
 935                                                  IN      UCHAR           Wcid,
 936                                                  IN      UCHAR           TID,
 937                                                  IN      BOOLEAN         bPassive)
 938 {
 939         ULONG           Idx = 0;
 940         BA_REC_ENTRY    *pBAEntry;
 941
 942         if (Wcid >= MAX_LEN_OF_MAC_TABLE)
 943         {
 944                 return;
 945         }
 946
 947         //
 948         //  Locate corresponding BA Originator Entry in BA Table with the (pAddr,TID).
 949         //
 950         Idx = pAd->MacTab.Content[Wcid].BARecWcidArray[TID];
 951         if (Idx == 0)
 952                 return;
 953
 954         DBGPRINT(RT_DEBUG_TRACE,("%s===>Wcid=%d.TID=%d \n", __func__, Wcid, TID));
 955
 956
 957         pBAEntry = &pAd->BATable.BARecEntry[Idx];
 958         DBGPRINT(RT_DEBUG_TRACE,("\t===>Idx = %ld, Wcid=%d.TID=%d, REC_BA_Status = %d \n", Idx, Wcid, TID, pBAEntry->REC_BA_Status));
 959         //
 960         // Prepare DelBA action frame and send to the peer.
 961         //
 962         if ((TID == pBAEntry->TID) && (pBAEntry->REC_BA_Status == Recipient_Accept))
 963         {
 964                 MLME_DELBA_REQ_STRUCT   DelbaReq;
 965                 BOOLEAN                                 Cancelled;
 966                 //ULONG   offset;
 967                 //UINT32  VALUE;
 968
 969                 RTMPCancelTimer(&pBAEntry->RECBATimer, &Cancelled);
 970
 971                 //
 972                 // 1. Send DELBA Action Frame
 973                 //
 974                 if (bPassive == FALSE)
 975                 {
 976                         MLME_QUEUE_ELEM *Elem = (MLME_QUEUE_ELEM *) kmalloc(sizeof(MLME_QUEUE_ELEM), MEM_ALLOC_FLAG);
 977                         if (Elem != NULL)
 978                         {
 979                         NdisZeroMemory(&DelbaReq, sizeof(DelbaReq));
 980                         NdisZeroMemory(Elem, sizeof(MLME_QUEUE_ELEM));
 981
 982                         COPY_MAC_ADDR(DelbaReq.Addr, pAd->MacTab.Content[Wcid].Addr);
 983                         DelbaReq.Wcid = Wcid;
 984                         DelbaReq.TID = TID;
 985                         DelbaReq.Initiator = RECIPIENT;
 986                         Elem->MsgLen  = sizeof(DelbaReq);
 987                         NdisMoveMemory(Elem->Msg, &DelbaReq, sizeof(DelbaReq));
 988                         MlmeDELBAAction(pAd, Elem);
 989                         kfree(Elem);
 990                         }
 991                         else
 992                         {
 993                                 DBGPRINT(RT_DEBUG_ERROR, ("%s():alloc memory failed!\n", __func__));
 994                                 return;
 995                         }
 996                 }
 997
 998
 999                 //
1000                 // 2. Free resource of BA session
1001                 //
1002                 // flush all pending reordering mpdus
1003                 ba_refresh_reordering_mpdus(pAd, pBAEntry);
1004
1005                 NdisAcquireSpinLock(&pAd->BATabLock);
1006
1007                 // Erase Bitmap flag.
1008                 pBAEntry->LastIndSeq = RESET_RCV_SEQ;
1009                 pBAEntry->BAWinSize = 0;
1010                 // Erase Bitmap flag at software mactable
1011                 pAd->MacTab.Content[Wcid].RXBAbitmap &= (~(1<<(pBAEntry->TID)));
1012                 pAd->MacTab.Content[Wcid].BARecWcidArray[TID] = 0;
1013
1014                 RTMP_DEL_BA_SESSION_FROM_ASIC(pAd, Wcid, TID);
1015
1016                 NdisReleaseSpinLock(&pAd->BATabLock);
1017
1018         }
1019
1020         BATableFreeRecEntry(pAd, Idx);
1021 }
1022
1023 VOID BASessionTearDownALL(
1024                                                  IN OUT  PRTMP_ADAPTER pAd,
1025                                                  IN      UCHAR Wcid)
1026 {
1027         int i;
1028
1029         for (i=0; i<NUM_OF_TID; i++)
1030         {
1031                 BAOriSessionTearDown(pAd, Wcid, i, FALSE, FALSE);
1032                 BARecSessionTearDown(pAd, Wcid, i, FALSE);
1033         }
1034 }
1035
1036
1037 /*
1038         ==========================================================================
1039         Description:
1040                 Retry sending ADDBA Reqest.
1041
1042         IRQL = DISPATCH_LEVEL
1043
1044         Parametrs:
1045         p8023Header: if this is already 802.3 format, p8023Header is NULL
1046
1047         Return  : TRUE if put into rx reordering buffer, shouldn't indicaterxhere.
1048                                 FALSE , then continue indicaterx at this moment.
1049         ==========================================================================
1050  */
1051 VOID BAOriSessionSetupTimeout(
1052     IN PVOID SystemSpecific1,
1053     IN PVOID FunctionContext,
1054     IN PVOID SystemSpecific2,
1055     IN PVOID SystemSpecific3)
1056 {
1057         BA_ORI_ENTRY    *pBAEntry = (BA_ORI_ENTRY *)FunctionContext;
1058         MAC_TABLE_ENTRY *pEntry;
1059         PRTMP_ADAPTER   pAd;
1060
1061         if (pBAEntry == NULL)
1062                 return;
1063
1064         pAd = pBAEntry->pAdapter;
1065
1066         {
1067         // Do nothing if monitor mode is on
1068         if (MONITOR_ON(pAd))
1069                 return;
1070         }
1071
1072
1073         pEntry = &pAd->MacTab.Content[pBAEntry->Wcid];
1074
1075         if ((pBAEntry->ORI_BA_Status == Originator_WaitRes) && (pBAEntry->Token < ORI_SESSION_MAX_RETRY))
1076         {
1077                 MLME_ADDBA_REQ_STRUCT    AddbaReq;
1078
1079                 NdisZeroMemory(&AddbaReq, sizeof(AddbaReq));
1080                 COPY_MAC_ADDR(AddbaReq.pAddr, pEntry->Addr);
1081                 AddbaReq.Wcid = (UCHAR)(pEntry->Aid);
1082                 AddbaReq.TID = pBAEntry->TID;
1083                 AddbaReq.BaBufSize = pAd->CommonCfg.BACapability.field.RxBAWinLimit;
1084                 AddbaReq.TimeOutValue = 0;
1085                 AddbaReq.Token = pBAEntry->Token;
1086                 MlmeEnqueue(pAd, ACTION_STATE_MACHINE, MT2_MLME_ADD_BA_CATE, sizeof(MLME_ADDBA_REQ_STRUCT), (PVOID)&AddbaReq);
1087                 RTMP_MLME_HANDLER(pAd);
1088                 DBGPRINT(RT_DEBUG_TRACE,("BA Ori Session Timeout(%d) : Send ADD BA again\n", pBAEntry->Token));
1089
1090                 pBAEntry->Token++;
1091                 RTMPSetTimer(&pBAEntry->ORIBATimer, ORI_BA_SESSION_TIMEOUT);
1092         }
1093         else
1094         {
1095                 BATableFreeOriEntry(pAd, pEntry->BAOriWcidArray[pBAEntry->TID]);
1096         }
1097 }
1098
1099 /*
1100         ==========================================================================
1101         Description:
1102                 Retry sending ADDBA Reqest.
1103
1104         IRQL = DISPATCH_LEVEL
1105
1106         Parametrs:
1107         p8023Header: if this is already 802.3 format, p8023Header is NULL
1108
1109         Return  : TRUE if put into rx reordering buffer, shouldn't indicaterxhere.
1110                                 FALSE , then continue indicaterx at this moment.
1111         ==========================================================================
1112  */
1113 VOID BARecSessionIdleTimeout(
1114     IN PVOID SystemSpecific1,
1115     IN PVOID FunctionContext,
1116     IN PVOID SystemSpecific2,
1117     IN PVOID SystemSpecific3)
1118 {
1119
1120         BA_REC_ENTRY    *pBAEntry = (BA_REC_ENTRY *)FunctionContext;
1121         PRTMP_ADAPTER   pAd;
1122         ULONG           Now32;
1123
1124         if (pBAEntry == NULL)
1125                 return;
1126
1127         if ((pBAEntry->REC_BA_Status == Recipient_Accept))
1128         {
1129                 NdisGetSystemUpTime(&Now32);
1130
1131                 if (RTMP_TIME_AFTER((unsigned long)Now32, (unsigned long)(pBAEntry->LastIndSeqAtTimer + REC_BA_SESSION_IDLE_TIMEOUT)))
1132                 {
1133                         pAd = pBAEntry->pAdapter;
1134                         // flush all pending reordering mpdus
1135                         ba_refresh_reordering_mpdus(pAd, pBAEntry);
1136                         DBGPRINT(RT_DEBUG_OFF, ("%ld: REC BA session Timeout\n", Now32));
1137                 }
1138         }
1139 }
1140
1141
1142 VOID PeerAddBAReqAction(
1143         IN PRTMP_ADAPTER pAd,
1144         IN MLME_QUEUE_ELEM *Elem)
1145
1146 {
1147         //      7.4.4.1
1148         //ULONG Idx;
1149         UCHAR   Status = 1;
1150         UCHAR   pAddr[6];
1151         FRAME_ADDBA_RSP ADDframe;
1152         PUCHAR         pOutBuffer = NULL;
1153         NDIS_STATUS     NStatus;
1154         PFRAME_ADDBA_REQ  pAddreqFrame = NULL;
1155         //UCHAR         BufSize;
1156         ULONG       FrameLen;
1157         PULONG      ptemp;
1158         PMAC_TABLE_ENTRY        pMacEntry;
1159
1160         DBGPRINT(RT_DEBUG_TRACE, ("%s ==> (Wcid = %d)\n", __func__, Elem->Wcid));
1161
1162         //hex_dump("AddBAReq", Elem->Msg, Elem->MsgLen);
1163
1164         //ADDBA Request from unknown peer, ignore this.
1165         if (Elem->Wcid >= MAX_LEN_OF_MAC_TABLE)
1166                 return;
1167
1168         pMacEntry = &pAd->MacTab.Content[Elem->Wcid];
1169         DBGPRINT(RT_DEBUG_TRACE,("BA - PeerAddBAReqAction----> \n"));
1170         ptemp = (PULONG)Elem->Msg;
1171         //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)));
1172
1173         if (PeerAddBAReqActionSanity(pAd, Elem->Msg, Elem->MsgLen, pAddr))
1174         {
1175
1176                 if ((pAd->CommonCfg.bBADecline == FALSE) && IS_HT_STA(pMacEntry))
1177                 {
1178                         pAddreqFrame = (PFRAME_ADDBA_REQ)(&Elem->Msg[0]);
1179                         DBGPRINT(RT_DEBUG_OFF, ("Rcv Wcid(%d) AddBAReq\n", Elem->Wcid));
1180                         if (BARecSessionAdd(pAd, &pAd->MacTab.Content[Elem->Wcid], pAddreqFrame))
1181                                 Status = 0;
1182                         else
1183                                 Status = 38; // more parameters have invalid values
1184                 }
1185                 else
1186                 {
1187                         Status = 37; // the request has been declined.
1188                 }
1189         }
1190
1191         if (pAd->MacTab.Content[Elem->Wcid].ValidAsCLI)
1192                 ASSERT(pAd->MacTab.Content[Elem->Wcid].Sst == SST_ASSOC);
1193
1194         pAddreqFrame = (PFRAME_ADDBA_REQ)(&Elem->Msg[0]);
1195         // 2. Always send back ADDBA Response
1196         NStatus = MlmeAllocateMemory(pAd, &pOutBuffer);  //Get an unused nonpaged memory
1197         if (NStatus != NDIS_STATUS_SUCCESS)
1198         {
1199                 DBGPRINT(RT_DEBUG_TRACE,("ACTION - PeerBAAction() allocate memory failed \n"));
1200                 return;
1201         }
1202
1203         NdisZeroMemory(&ADDframe, sizeof(FRAME_ADDBA_RSP));
1204
1205         // 2-1. Prepare ADDBA Response frame.
1206         {
1207                 if (ADHOC_ON(pAd))
1208                         ActHeaderInit(pAd, &ADDframe.Hdr, pAddr, pAd->CurrentAddress, pAd->CommonCfg.Bssid);
1209                 else
1210                         ActHeaderInit(pAd, &ADDframe.Hdr, pAd->CommonCfg.Bssid, pAd->CurrentAddress, pAddr);
1211         }
1212
1213         ADDframe.Category = CATEGORY_BA;
1214         ADDframe.Action = ADDBA_RESP;
1215         ADDframe.Token = pAddreqFrame->Token;
1216         // What is the Status code??  need to check.
1217         ADDframe.StatusCode = Status;
1218         ADDframe.BaParm.BAPolicy = IMMED_BA;
1219         ADDframe.BaParm.AMSDUSupported = 0;
1220         ADDframe.BaParm.TID = pAddreqFrame->BaParm.TID;
1221         ADDframe.BaParm.BufSize = min(((UCHAR)pAddreqFrame->BaParm.BufSize), (UCHAR)pAd->CommonCfg.BACapability.field.RxBAWinLimit);
1222         if (ADDframe.BaParm.BufSize == 0)
1223         {
1224                 ADDframe.BaParm.BufSize = 64;
1225         }
1226         ADDframe.TimeOutValue = 0; //pAddreqFrame->TimeOutValue;
1227
1228         *(USHORT *)(&ADDframe.BaParm) = cpu2le16(*(USHORT *)(&ADDframe.BaParm));
1229         ADDframe.StatusCode = cpu2le16(ADDframe.StatusCode);
1230         ADDframe.TimeOutValue = cpu2le16(ADDframe.TimeOutValue);
1231
1232         MakeOutgoingFrame(pOutBuffer,               &FrameLen,
1233                                           sizeof(FRAME_ADDBA_RSP),  &ADDframe,
1234                           END_OF_ARGS);
1235         MiniportMMRequest(pAd, QID_AC_BE, pOutBuffer, FrameLen);
1236         MlmeFreeMemory(pAd, pOutBuffer);
1237
1238         DBGPRINT(RT_DEBUG_TRACE, ("%s(%d): TID(%d), BufSize(%d) <== \n", __func__, Elem->Wcid, ADDframe.BaParm.TID,
1239                                                           ADDframe.BaParm.BufSize));
1240 }
1241
1242
1243 VOID PeerAddBARspAction(
1244         IN PRTMP_ADAPTER pAd,
1245         IN MLME_QUEUE_ELEM *Elem)
1246
1247 {
1248         //UCHAR         Idx, i;
1249         //PUCHAR                   pOutBuffer = NULL;
1250         PFRAME_ADDBA_RSP    pFrame = NULL;
1251         //PBA_ORI_ENTRY         pBAEntry;
1252
1253         //ADDBA Response from unknown peer, ignore this.
1254         if (Elem->Wcid >= MAX_LEN_OF_MAC_TABLE)
1255                 return;
1256
1257         DBGPRINT(RT_DEBUG_TRACE, ("%s ==> Wcid(%d)\n", __func__, Elem->Wcid));
1258
1259         //hex_dump("PeerAddBARspAction()", Elem->Msg, Elem->MsgLen);
1260
1261         if (PeerAddBARspActionSanity(pAd, Elem->Msg, Elem->MsgLen))
1262         {
1263                 pFrame = (PFRAME_ADDBA_RSP)(&Elem->Msg[0]);
1264
1265                 DBGPRINT(RT_DEBUG_TRACE, ("\t\t StatusCode = %d\n", pFrame->StatusCode));
1266                 switch (pFrame->StatusCode)
1267                 {
1268                         case 0:
1269                                 // I want a BAsession with this peer as an originator.
1270                                 BAOriSessionAdd(pAd, &pAd->MacTab.Content[Elem->Wcid], pFrame);
1271                                 break;
1272                         default:
1273                                 // check status == USED ???
1274                                 BAOriSessionTearDown(pAd, Elem->Wcid, pFrame->BaParm.TID, TRUE, FALSE);
1275                                 break;
1276                 }
1277                 // Rcv Decline StatusCode
1278                 if ((pFrame->StatusCode == 37)
1279             || ((pAd->OpMode == OPMODE_STA) && STA_TGN_WIFI_ON(pAd) && (pFrame->StatusCode != 0))
1280             )
1281                 {
1282                         pAd->MacTab.Content[Elem->Wcid].BADeclineBitmap |= 1<<pFrame->BaParm.TID;
1283                 }
1284         }
1285 }
1286
1287 VOID PeerDelBAAction(
1288         IN PRTMP_ADAPTER pAd,
1289         IN MLME_QUEUE_ELEM *Elem)
1290
1291 {
1292         //UCHAR                         Idx;
1293         //PUCHAR                                pOutBuffer = NULL;
1294         PFRAME_DELBA_REQ    pDelFrame = NULL;
1295
1296         DBGPRINT(RT_DEBUG_TRACE,("%s ==>\n", __func__));
1297         //DELBA Request from unknown peer, ignore this.
1298         if (PeerDelBAActionSanity(pAd, Elem->Wcid, Elem->Msg, Elem->MsgLen))
1299         {
1300                 pDelFrame = (PFRAME_DELBA_REQ)(&Elem->Msg[0]);
1301                 if (pDelFrame->DelbaParm.Initiator == ORIGINATOR)
1302                 {
1303                         DBGPRINT(RT_DEBUG_TRACE,("BA - PeerDelBAAction----> ORIGINATOR\n"));
1304                         BARecSessionTearDown(pAd, Elem->Wcid, pDelFrame->DelbaParm.TID, TRUE);
1305                 }
1306                 else
1307                 {
1308                         DBGPRINT(RT_DEBUG_TRACE,("BA - PeerDelBAAction----> RECIPIENT, Reason = %d\n",  pDelFrame->ReasonCode));
1309                         //hex_dump("DelBA Frame", pDelFrame, Elem->MsgLen);
1310                         BAOriSessionTearDown(pAd, Elem->Wcid, pDelFrame->DelbaParm.TID, TRUE, FALSE);
1311                 }
1312         }
1313 }
1314
1315
1316 BOOLEAN CntlEnqueueForRecv(
1317                                                   IN PRTMP_ADAPTER              pAd,
1318                                                   IN ULONG                              Wcid,
1319                                                   IN ULONG                              MsgLen,
1320                                                   IN PFRAME_BA_REQ              pMsg)
1321 {
1322         PFRAME_BA_REQ   pFrame = pMsg;
1323         //PRTMP_REORDERBUF      pBuffer;
1324         //PRTMP_REORDERBUF      pDmaBuf;
1325         PBA_REC_ENTRY pBAEntry;
1326         //BOOLEAN       Result;
1327         ULONG   Idx;
1328         //UCHAR NumRxPkt;
1329         UCHAR   TID;//, i;
1330
1331         TID = (UCHAR)pFrame->BARControl.TID;
1332
1333         DBGPRINT(RT_DEBUG_TRACE, ("%s(): BAR-Wcid(%ld), Tid (%d)\n", __func__, Wcid, TID));
1334         //hex_dump("BAR", (PCHAR) pFrame, MsgLen);
1335         // Do nothing if the driver is starting halt state.
1336         // This might happen when timer already been fired before cancel timer with mlmehalt
1337         if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS | fRTMP_ADAPTER_NIC_NOT_EXIST))
1338                 return FALSE;
1339
1340         // First check the size, it MUST not exceed the mlme queue size
1341         if (MsgLen > MGMT_DMA_BUFFER_SIZE)
1342         {
1343                 DBGPRINT_ERR(("CntlEnqueueForRecv: frame too large, size = %ld \n", MsgLen));
1344                 return FALSE;
1345         }
1346         else if (MsgLen != sizeof(FRAME_BA_REQ))
1347         {
1348                 DBGPRINT_ERR(("CntlEnqueueForRecv: BlockAck Request frame length size = %ld incorrect\n", MsgLen));
1349                 return FALSE;
1350         }
1351         else if (MsgLen != sizeof(FRAME_BA_REQ))
1352         {
1353                 DBGPRINT_ERR(("CntlEnqueueForRecv: BlockAck Request frame length size = %ld incorrect\n", MsgLen));
1354                 return FALSE;
1355         }
1356
1357         if ((Wcid < MAX_LEN_OF_MAC_TABLE) && (TID < 8))
1358                 {
1359                 // if this receiving packet is from SA that is in our OriEntry. Since WCID <9 has direct mapping. no need search.
1360                 Idx = pAd->MacTab.Content[Wcid].BARecWcidArray[TID];
1361                 pBAEntry = &pAd->BATable.BARecEntry[Idx];
1362                 }
1363                 else
1364                 {
1365                 return FALSE;
1366         }
1367
1368         DBGPRINT(RT_DEBUG_TRACE, ("BAR(%ld) : Tid (%d) - %04x:%04x\n", Wcid, TID, pFrame->BAStartingSeq.field.StartSeq, pBAEntry->LastIndSeq ));
1369
1370         if (SEQ_SMALLER(pBAEntry->LastIndSeq, pFrame->BAStartingSeq.field.StartSeq, MAXSEQ))
1371         {
1372                 //DBGPRINT(RT_DEBUG_TRACE, ("BAR Seq = %x, LastIndSeq = %x\n", pFrame->BAStartingSeq.field.StartSeq, pBAEntry->LastIndSeq));
1373                 ba_indicate_reordering_mpdus_le_seq(pAd, pBAEntry, pFrame->BAStartingSeq.field.StartSeq);
1374                 pBAEntry->LastIndSeq = (pFrame->BAStartingSeq.field.StartSeq == 0) ? MAXSEQ :(pFrame->BAStartingSeq.field.StartSeq -1);
1375         }
1376         //ba_refresh_reordering_mpdus(pAd, pBAEntry);
1377         return TRUE;
1378 }
1379
1380 /*
1381 Description : Send PSMP Action frame If PSMP mode switches.
1382 */
1383 VOID SendPSMPAction(
1384                                    IN PRTMP_ADAPTER             pAd,
1385                                    IN UCHAR                             Wcid,
1386                                    IN UCHAR                             Psmp)
1387 {
1388         PUCHAR          pOutBuffer = NULL;
1389         NDIS_STATUS     NStatus;
1390         //ULONG           Idx;
1391         FRAME_PSMP_ACTION   Frame;
1392         ULONG           FrameLen;
1393
1394         NStatus = MlmeAllocateMemory(pAd, &pOutBuffer);  //Get an unused nonpaged memory
1395         if (NStatus != NDIS_STATUS_SUCCESS)
1396         {
1397                 DBGPRINT(RT_DEBUG_ERROR,("BA - MlmeADDBAAction() allocate memory failed \n"));
1398                 return;
1399         }
1400
1401         ActHeaderInit(pAd, &Frame.Hdr, pAd->CommonCfg.Bssid, pAd->CurrentAddress, pAd->MacTab.Content[Wcid].Addr);
1402
1403         Frame.Category = CATEGORY_HT;
1404         Frame.Action = SMPS_ACTION;
1405         switch (Psmp)
1406         {
1407                 case MMPS_ENABLE:
1408 #ifdef RT30xx
1409                         if (IS_RT30xx(pAd)
1410                                 &&(pAd->Antenna.field.RxPath>1||pAd->Antenna.field.TxPath>1))
1411                         {
1412                                 RTMP_ASIC_MMPS_DISABLE(pAd);
1413                         }
1414 #endif // RT30xx //
1415                         Frame.Psmp = 0;
1416                         break;
1417                 case MMPS_DYNAMIC:
1418                         Frame.Psmp = 3;
1419                         break;
1420                 case MMPS_STATIC:
1421 #ifdef RT30xx
1422                         if (IS_RT30xx(pAd)
1423                                 &&(pAd->Antenna.field.RxPath>1||pAd->Antenna.field.TxPath>1))
1424                         {
1425                                 RTMP_ASIC_MMPS_ENABLE(pAd);
1426                         }
1427 #endif // RT30xx //
1428                         Frame.Psmp = 1;
1429                         break;
1430         }
1431         MakeOutgoingFrame(pOutBuffer,               &FrameLen,
1432                                           sizeof(FRAME_PSMP_ACTION),      &Frame,
1433                                           END_OF_ARGS);
1434         MiniportMMRequest(pAd, QID_AC_BE, pOutBuffer, FrameLen);
1435         MlmeFreeMemory(pAd, pOutBuffer);
1436         DBGPRINT(RT_DEBUG_ERROR,("HT - SendPSMPAction( %d )  \n", Frame.Psmp));
1437 }
1438
1439
1440 #define RADIO_MEASUREMENT_REQUEST_ACTION        0
1441
1442 typedef struct PACKED
1443 {
1444         UCHAR   RegulatoryClass;
1445         UCHAR   ChannelNumber;
1446         USHORT  RandomInterval;
1447         USHORT  MeasurementDuration;
1448         UCHAR   MeasurementMode;
1449         UCHAR   BSSID[MAC_ADDR_LEN];
1450         UCHAR   ReportingCondition;
1451         UCHAR   Threshold;
1452         UCHAR   SSIDIE[2];                      // 2 byte
1453 } BEACON_REQUEST;
1454
1455 typedef struct PACKED
1456 {
1457         UCHAR   ID;
1458         UCHAR   Length;
1459         UCHAR   Token;
1460         UCHAR   RequestMode;
1461         UCHAR   Type;
1462 } MEASUREMENT_REQ;
1463
1464
1465
1466
1467 void convert_reordering_packet_to_preAMSDU_or_802_3_packet(
1468         IN      PRTMP_ADAPTER   pAd,
1469         IN      RX_BLK                  *pRxBlk,
1470         IN  UCHAR                       FromWhichBSSID)
1471 {
1472         PNDIS_PACKET    pRxPkt;
1473         UCHAR                   Header802_3[LENGTH_802_3];
1474
1475         // 1. get 802.3 Header
1476         // 2. remove LLC
1477         //              a. pointer pRxBlk->pData to payload
1478         //      b. modify pRxBlk->DataSize
1479
1480         RTMP_802_11_REMOVE_LLC_AND_CONVERT_TO_802_3(pRxBlk, Header802_3);
1481
1482         ASSERT(pRxBlk->pRxPacket);
1483         pRxPkt = RTPKT_TO_OSPKT(pRxBlk->pRxPacket);
1484
1485         SET_OS_PKT_NETDEV(pRxPkt, get_netdev_from_bssid(pAd, FromWhichBSSID));
1486         SET_OS_PKT_DATAPTR(pRxPkt, pRxBlk->pData);
1487         SET_OS_PKT_LEN(pRxPkt, pRxBlk->DataSize);
1488         SET_OS_PKT_DATATAIL(pRxPkt, pRxBlk->pData, pRxBlk->DataSize);
1489
1490         //
1491         // copy 802.3 header, if necessary
1492         //
1493         if (!RX_BLK_TEST_FLAG(pRxBlk, fRX_AMSDU))
1494         {
1495                 {
1496 #ifdef LINUX
1497                 NdisMoveMemory(skb_push(pRxPkt, LENGTH_802_3), Header802_3, LENGTH_802_3);
1498 #endif
1499         }
1500         }
1501 }
1502
1503
1504 #define INDICATE_LEGACY_OR_AMSDU(_pAd, _pRxBlk, _fromWhichBSSID)                \
1505         do                                                                                                                                      \
1506         {                                                                                                                                       \
1507         if (RX_BLK_TEST_FLAG(_pRxBlk, fRX_AMSDU))                                               \
1508         {                                                                                                                               \
1509                 Indicate_AMSDU_Packet(_pAd, _pRxBlk, _fromWhichBSSID);          \
1510         }                                                                                                                               \
1511                 else if (RX_BLK_TEST_FLAG(_pRxBlk, fRX_EAP))                                    \
1512                 {                                                                                                                               \
1513                         Indicate_EAPOL_Packet(_pAd, _pRxBlk, _fromWhichBSSID);          \
1514                 }                                                                                                                               \
1515         else                                                                                                                    \
1516         {                                                                                                                               \
1517                 Indicate_Legacy_Packet(_pAd, _pRxBlk, _fromWhichBSSID);         \
1518         }                                                                                                                               \
1519         } while (0);
1520
1521
1522
1523 static VOID ba_enqueue_reordering_packet(
1524         IN      PRTMP_ADAPTER   pAd,
1525         IN      PBA_REC_ENTRY   pBAEntry,
1526         IN      RX_BLK                  *pRxBlk,
1527         IN      UCHAR                   FromWhichBSSID)
1528 {
1529         struct reordering_mpdu *mpdu_blk;
1530         UINT16  Sequence = (UINT16) pRxBlk->pHeader->Sequence;
1531
1532         mpdu_blk = ba_mpdu_blk_alloc(pAd);
1533         if ((mpdu_blk != NULL) &&
1534                 (!RX_BLK_TEST_FLAG(pRxBlk, fRX_EAP)))
1535         {
1536                 // Write RxD buffer address & allocated buffer length
1537                 NdisAcquireSpinLock(&pBAEntry->RxReRingLock);
1538
1539                 mpdu_blk->Sequence = Sequence;
1540
1541                 mpdu_blk->bAMSDU = RX_BLK_TEST_FLAG(pRxBlk, fRX_AMSDU);
1542
1543                 convert_reordering_packet_to_preAMSDU_or_802_3_packet(pAd, pRxBlk, FromWhichBSSID);
1544
1545                 STATS_INC_RX_PACKETS(pAd, FromWhichBSSID);
1546
1547         //
1548                 // it is necessary for reordering packet to record
1549                 // which BSS it come from
1550                 //
1551                 RTMP_SET_PACKET_IF(pRxBlk->pRxPacket, FromWhichBSSID);
1552
1553                 mpdu_blk->pPacket = pRxBlk->pRxPacket;
1554
1555                 if (ba_reordering_mpdu_insertsorted(&pBAEntry->list, mpdu_blk) == FALSE)
1556                 {
1557                         // had been already within reordering list
1558                         // don't indicate
1559                         RELEASE_NDIS_PACKET(pAd, pRxBlk->pRxPacket, NDIS_STATUS_SUCCESS);
1560                         ba_mpdu_blk_free(pAd, mpdu_blk);
1561                 }
1562
1563                 ASSERT((0<= pBAEntry->list.qlen)  && (pBAEntry->list.qlen <= pBAEntry->BAWinSize));
1564                 NdisReleaseSpinLock(&pBAEntry->RxReRingLock);
1565         }
1566         else
1567         {
1568                 DBGPRINT(RT_DEBUG_ERROR,  ("!!! (%d) Can't allocate reordering mpdu blk\n",
1569                                                                    pBAEntry->list.qlen));
1570
1571                 /*
1572                  * flush all pending reordering mpdus
1573                  * and receving mpdu to upper layer
1574                  * make tcp/ip to take care reordering mechanism
1575                  */
1576                 //ba_refresh_reordering_mpdus(pAd, pBAEntry);
1577                 ba_indicate_reordering_mpdus_le_seq(pAd, pBAEntry, Sequence);
1578
1579                 pBAEntry->LastIndSeq = Sequence;
1580                 INDICATE_LEGACY_OR_AMSDU(pAd, pRxBlk, FromWhichBSSID);
1581         }
1582 }
1583
1584
1585 /*
1586         ==========================================================================
1587         Description:
1588                 Indicate this packet to upper layer or put it into reordering buffer
1589
1590         Parametrs:
1591                 pRxBlk         : carry necessary packet info 802.11 format
1592                 FromWhichBSSID : the packet received from which BSS
1593
1594         Return  :
1595                           none
1596
1597         Note    :
1598                   the packet queued into reordering buffer need to cover to 802.3 format
1599                           or pre_AMSDU format
1600         ==========================================================================
1601  */
1602
1603 VOID Indicate_AMPDU_Packet(
1604         IN      PRTMP_ADAPTER   pAd,
1605         IN      RX_BLK                  *pRxBlk,
1606         IN      UCHAR                   FromWhichBSSID)
1607 {
1608         USHORT                          Idx;
1609         PBA_REC_ENTRY           pBAEntry = NULL;
1610         UINT16                          Sequence = pRxBlk->pHeader->Sequence;
1611         ULONG                           Now32;
1612         UCHAR                           Wcid = pRxBlk->pRxWI->WirelessCliID;
1613         UCHAR                           TID = pRxBlk->pRxWI->TID;
1614
1615
1616         if (!RX_BLK_TEST_FLAG(pRxBlk, fRX_AMSDU) &&  (pRxBlk->DataSize > MAX_RX_PKT_LEN))
1617         {
1618                 // release packet
1619                 RELEASE_NDIS_PACKET(pAd, pRxBlk->pRxPacket, NDIS_STATUS_FAILURE);
1620                 return;
1621         }
1622
1623         if (Wcid < MAX_LEN_OF_MAC_TABLE)
1624         {
1625                 Idx = pAd->MacTab.Content[Wcid].BARecWcidArray[TID];
1626                 if (Idx == 0)
1627                 {
1628                         /* Rec BA Session had been torn down */
1629                         INDICATE_LEGACY_OR_AMSDU(pAd, pRxBlk, FromWhichBSSID);
1630                         return;
1631                 }
1632                 pBAEntry = &pAd->BATable.BARecEntry[Idx];
1633         }
1634         else
1635         {
1636                 // impossible !!!
1637                 ASSERT(0);
1638                 // release packet
1639                 RELEASE_NDIS_PACKET(pAd, pRxBlk->pRxPacket, NDIS_STATUS_FAILURE);
1640                 return;
1641         }
1642
1643         ASSERT(pBAEntry);
1644
1645         // update last rx time
1646         NdisGetSystemUpTime(&Now32);
1647
1648         pBAEntry->rcvSeq = Sequence;
1649
1650
1651         ba_flush_reordering_timeout_mpdus(pAd, pBAEntry, Now32);
1652         pBAEntry->LastIndSeqAtTimer = Now32;
1653
1654         //
1655         // Reset Last Indicate Sequence
1656         //
1657         if (pBAEntry->LastIndSeq == RESET_RCV_SEQ)
1658         {
1659                 ASSERT((pBAEntry->list.qlen == 0) && (pBAEntry->list.next == NULL));
1660
1661                 // reset rcv sequence of BA session
1662                 pBAEntry->LastIndSeq = Sequence;
1663                 pBAEntry->LastIndSeqAtTimer = Now32;
1664                 INDICATE_LEGACY_OR_AMSDU(pAd, pRxBlk, FromWhichBSSID);
1665                 return;
1666         }
1667
1668
1669         //
1670         // I. Check if in order.
1671         //
1672         if (SEQ_STEPONE(Sequence, pBAEntry->LastIndSeq, MAXSEQ))
1673         {
1674                 USHORT  LastIndSeq;
1675
1676                 pBAEntry->LastIndSeq = Sequence;
1677                 INDICATE_LEGACY_OR_AMSDU(pAd, pRxBlk, FromWhichBSSID);
1678                 LastIndSeq = ba_indicate_reordering_mpdus_in_order(pAd, pBAEntry, pBAEntry->LastIndSeq);
1679                 if (LastIndSeq != RESET_RCV_SEQ)
1680                 {
1681                         pBAEntry->LastIndSeq = LastIndSeq;
1682                 }
1683                 pBAEntry->LastIndSeqAtTimer = Now32;
1684         }
1685         //
1686         // II. Drop Duplicated Packet
1687         //
1688         else if (Sequence == pBAEntry->LastIndSeq)
1689         {
1690
1691                 // drop and release packet
1692                 pBAEntry->nDropPacket++;
1693                 RELEASE_NDIS_PACKET(pAd, pRxBlk->pRxPacket, NDIS_STATUS_FAILURE);
1694         }
1695         //
1696         // III. Drop Old Received Packet
1697         //
1698         else if (SEQ_SMALLER(Sequence, pBAEntry->LastIndSeq, MAXSEQ))
1699         {
1700
1701                 // drop and release packet
1702                 pBAEntry->nDropPacket++;
1703                 RELEASE_NDIS_PACKET(pAd, pRxBlk->pRxPacket, NDIS_STATUS_FAILURE);
1704         }
1705         //
1706         // IV. Receive Sequence within Window Size
1707         //
1708         else if (SEQ_SMALLER(Sequence, (((pBAEntry->LastIndSeq+pBAEntry->BAWinSize+1)) & MAXSEQ), MAXSEQ))
1709         {
1710                 ba_enqueue_reordering_packet(pAd, pBAEntry, pRxBlk, FromWhichBSSID);
1711         }
1712         //
1713         // V. Receive seq surpasses Win(lastseq + nMSDU). So refresh all reorder buffer
1714         //
1715         else
1716         {
1717                 LONG WinStartSeq, TmpSeq;
1718
1719
1720                 TmpSeq = Sequence - (pBAEntry->BAWinSize) -1;
1721                 if (TmpSeq < 0)
1722                 {
1723                         TmpSeq = (MAXSEQ+1) + TmpSeq;
1724                 }
1725                 WinStartSeq = (TmpSeq+1) & MAXSEQ;
1726                 ba_indicate_reordering_mpdus_le_seq(pAd, pBAEntry, WinStartSeq);
1727                 pBAEntry->LastIndSeq = WinStartSeq; //TmpSeq;
1728
1729                 pBAEntry->LastIndSeqAtTimer = Now32;
1730
1731                 ba_enqueue_reordering_packet(pAd, pBAEntry, pRxBlk, FromWhichBSSID);
1732
1733                 TmpSeq = ba_indicate_reordering_mpdus_in_order(pAd, pBAEntry, pBAEntry->LastIndSeq);
1734                 if (TmpSeq != RESET_RCV_SEQ)
1735                 {
1736                         pBAEntry->LastIndSeq = TmpSeq;
1737                 }
1738         }
1739 }