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ba_action.c
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/*
*************************************************************************
* Ralink Tech Inc.
* 5F., No.36, Taiyuan St., Jhubei City,
* Hsinchu County 302,
* Taiwan, R.O.C.
*
* (c) Copyright 2002-2010, Ralink Technology, Inc.
*
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
* *
*************************************************************************/
#ifdef DOT11_N_SUPPORT
#include "rt_config.h"
#define BA_ORI_INIT_SEQ (pEntry->TxSeq[TID]) /*1 inital sequence number of BA session*/
#define ORI_SESSION_MAX_RETRY 8
#define ORI_BA_SESSION_TIMEOUT (2000) /* ms*/
#define REC_BA_SESSION_IDLE_TIMEOUT (1000) /* ms*/
#define REORDERING_PACKET_TIMEOUT ((100 * OS_HZ)/1000) /* system ticks -- 100 ms*/
#define MAX_REORDERING_PACKET_TIMEOUT ((3000 * OS_HZ)/1000) /* system ticks -- 100 ms*/
#define RESET_RCV_SEQ (0xFFFF)
static void ba_mpdu_blk_free(PRTMP_ADAPTER pAd, struct reordering_mpdu *mpdu_blk);
BA_ORI_ENTRY *BATableAllocOriEntry(
PRTMP_ADAPTER pAd,
unsigned short *Idx);
BA_REC_ENTRY *BATableAllocRecEntry(
PRTMP_ADAPTER pAd,
unsigned short *Idx);
void BAOriSessionSetupTimeout(
void* SystemSpecific1,
void* FunctionContext,
void* SystemSpecific2,
void* SystemSpecific3);
void BARecSessionIdleTimeout(
void* SystemSpecific1,
void* FunctionContext,
void* SystemSpecific2,
void* SystemSpecific3);
BUILD_TIMER_FUNCTION(BAOriSessionSetupTimeout);
BUILD_TIMER_FUNCTION(BARecSessionIdleTimeout);
#define ANNOUNCE_REORDERING_PACKET(_pAd, _mpdu_blk) \
Announce_Reordering_Packet(_pAd, _mpdu_blk);
void BA_MaxWinSizeReasign(
PRTMP_ADAPTER pAd,
MAC_TABLE_ENTRY *pEntryPeer,
unsigned char *pWinSize)
{
unsigned char MaxSize;
unsigned char MaxPeerRxSize;
if (CLIENT_STATUS_TEST_FLAG(pEntryPeer, fCLIENT_STATUS_RALINK_CHIPSET))
MaxPeerRxSize = (1 << (pEntryPeer->MaxRAmpduFactor + 3)); /* (2^(13 + exp)) / 2048 bytes */
else
MaxPeerRxSize = (((1 << (pEntryPeer->MaxRAmpduFactor + 3)) * 10) / 16) -1;
#ifdef RT65xx
if (IS_RT65XX(pAd))
MaxSize = 31;
else
#endif /* RT65xx */
if (pAd->MACVersion >= RALINK_2883_VERSION)
{
if (pAd->MACVersion >= RALINK_3070_VERSION)
{
if (pEntryPeer->WepStatus != Ndis802_11EncryptionDisabled)
MaxSize = 7; /* for non-open mode*/
else
MaxSize = 13;
}
else
MaxSize = 31;
}
else if (pAd->MACVersion >= RALINK_2880E_VERSION) /* 2880e */
{
if (pEntryPeer->WepStatus != Ndis802_11EncryptionDisabled)
MaxSize = 7; /* for non-open mode */
else
MaxSize = 13;
}
else
MaxSize = 7;
#ifdef CONFIG_STA_SUPPORT
#endif /* CONFIG_STA_SUPPORT */
DBGPRINT(RT_DEBUG_TRACE, ("ba>WinSize=%d, MaxSize=%d, MaxPeerRxSize=%d\n",
*pWinSize, MaxSize, MaxPeerRxSize));
MaxSize = min(MaxPeerRxSize, MaxSize);
if ((*pWinSize) > MaxSize)
{
DBGPRINT(RT_DEBUG_TRACE, ("ba> reassign max win size from %d to %d\n",
*pWinSize, MaxSize));
*pWinSize = MaxSize;
}
}
void Announce_Reordering_Packet(IN PRTMP_ADAPTER pAd,
struct reordering_mpdu *mpdu)
{
PNDIS_PACKET pPacket;
pPacket = mpdu->pPacket;
if (mpdu->bAMSDU)
{
/*ASSERT(0);*/
BA_Reorder_AMSDU_Annnounce(pAd, pPacket, mpdu->OpMode);
}
else
{
/* pass this 802.3 packet to upper layer or forward this packet to WM directly */
#ifdef CONFIG_STA_SUPPORT
IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
ANNOUNCE_OR_FORWARD_802_3_PACKET(pAd, pPacket, RTMP_GET_PACKET_IF(pPacket));
#endif /* CONFIG_STA_SUPPORT */
}
}
/*
* Insert a reordering mpdu into sorted linked list by sequence no.
*/
unsigned char ba_reordering_mpdu_insertsorted(struct reordering_list *list, struct reordering_mpdu *mpdu)
{
struct reordering_mpdu **ppScan = &list->next;
while (*ppScan != NULL)
{
if (SEQ_SMALLER((*ppScan)->Sequence, mpdu->Sequence, MAXSEQ))
{
ppScan = &(*ppScan)->next;
}
else if ((*ppScan)->Sequence == mpdu->Sequence)
{
/* give up this duplicated frame */
return(FALSE);
}
else
{
/* find position */
break;
}
}
mpdu->next = *ppScan;
*ppScan = mpdu;
list->qlen++;
return TRUE;
}
/*
* caller lock critical section if necessary
*/
static inline void ba_enqueue(struct reordering_list *list, struct reordering_mpdu *mpdu_blk)
{
list->qlen++;
mpdu_blk->next = list->next;
list->next = mpdu_blk;
}
/*
* caller lock critical section if necessary
*/
static inline struct reordering_mpdu * ba_dequeue(struct reordering_list *list)
{
struct reordering_mpdu *mpdu_blk = NULL;
ASSERT(list);
if (list->qlen)
{
list->qlen--;
mpdu_blk = list->next;
if (mpdu_blk)
{
list->next = mpdu_blk->next;
mpdu_blk->next = NULL;
}
}
return mpdu_blk;
}
static inline struct reordering_mpdu *ba_reordering_mpdu_dequeue(struct reordering_list *list)
{
return(ba_dequeue(list));
}
static inline struct reordering_mpdu *ba_reordering_mpdu_probe(struct reordering_list *list)
{
ASSERT(list);
return(list->next);
}
/*
* free all resource for reordering mechanism
*/
void ba_reordering_resource_release(PRTMP_ADAPTER pAd)
{
BA_TABLE *Tab;
PBA_REC_ENTRY pBAEntry;
struct reordering_mpdu *mpdu_blk;
int i;
Tab = &pAd->BATable;
/* I. release all pending reordering packet */
NdisAcquireSpinLock(&pAd->BATabLock);
for (i = 0; i < MAX_LEN_OF_BA_REC_TABLE; i++)
{
pBAEntry = &Tab->BARecEntry[i];
if (pBAEntry->REC_BA_Status != Recipient_NONE)
{
while ((mpdu_blk = ba_reordering_mpdu_dequeue(&pBAEntry->list)))
{
ASSERT(mpdu_blk->pPacket);
RELEASE_NDIS_PACKET(pAd, mpdu_blk->pPacket, NDIS_STATUS_FAILURE);
ba_mpdu_blk_free(pAd, mpdu_blk);
}
}
}
NdisReleaseSpinLock(&pAd->BATabLock);
ASSERT(pBAEntry->list.qlen == 0);
/* II. free memory of reordering mpdu table */
NdisAcquireSpinLock(&pAd->mpdu_blk_pool.lock);
os_free_mem(pAd, pAd->mpdu_blk_pool.mem);
NdisReleaseSpinLock(&pAd->mpdu_blk_pool.lock);
}
/*
* Allocate all resource for reordering mechanism
*/
unsigned char ba_reordering_resource_init(PRTMP_ADAPTER pAd, int num)
{
int i;
unsigned char* mem;
struct reordering_mpdu *mpdu_blk;
struct reordering_list *freelist;
/* allocate spinlock */
NdisAllocateSpinLock(pAd, &pAd->mpdu_blk_pool.lock);
/* initialize freelist */
freelist = &pAd->mpdu_blk_pool.freelist;
freelist->next = NULL;
freelist->qlen = 0;
DBGPRINT(RT_DEBUG_TRACE, ("Allocate %d memory for BA reordering\n", (unsigned int)(num*sizeof(struct reordering_mpdu))));
/* allocate number of mpdu_blk memory */
os_alloc_mem(pAd, (unsigned char* *)&mem, (num*sizeof(struct reordering_mpdu)));
pAd->mpdu_blk_pool.mem = mem;
if (mem == NULL)
{
DBGPRINT(RT_DEBUG_ERROR, ("Can't Allocate Memory for BA Reordering\n"));
return(FALSE);
}
/* build mpdu_blk free list */
for (i=0; i<num; i++)
{
/* get mpdu_blk */
mpdu_blk = (struct reordering_mpdu *) mem;
/* initial mpdu_blk */
NdisZeroMemory(mpdu_blk, sizeof(struct reordering_mpdu));
/* next mpdu_blk */
mem += sizeof(struct reordering_mpdu);
/* insert mpdu_blk into freelist */
ba_enqueue(freelist, mpdu_blk);
}
return(TRUE);
}
/* static int blk_count=0; sample take off, no use */
static struct reordering_mpdu *ba_mpdu_blk_alloc(PRTMP_ADAPTER pAd)
{
struct reordering_mpdu *mpdu_blk;
NdisAcquireSpinLock(&pAd->mpdu_blk_pool.lock);
mpdu_blk = ba_dequeue(&pAd->mpdu_blk_pool.freelist);
if (mpdu_blk)
{
/* blk_count++; */
/* reset mpdu_blk */
NdisZeroMemory(mpdu_blk, sizeof(struct reordering_mpdu));
}
NdisReleaseSpinLock(&pAd->mpdu_blk_pool.lock);
return mpdu_blk;
}
static void ba_mpdu_blk_free(PRTMP_ADAPTER pAd, struct reordering_mpdu *mpdu_blk)
{
ASSERT(mpdu_blk);
NdisAcquireSpinLock(&pAd->mpdu_blk_pool.lock);
/* blk_count--; */
ba_enqueue(&pAd->mpdu_blk_pool.freelist, mpdu_blk);
NdisReleaseSpinLock(&pAd->mpdu_blk_pool.lock);
}
static unsigned short ba_indicate_reordering_mpdus_in_order(
PRTMP_ADAPTER pAd,
PBA_REC_ENTRY pBAEntry,
unsigned short StartSeq)
{
struct reordering_mpdu *mpdu_blk;
unsigned short LastIndSeq = RESET_RCV_SEQ;
NdisAcquireSpinLock(&pBAEntry->RxReRingLock);
while ((mpdu_blk = ba_reordering_mpdu_probe(&pBAEntry->list)))
{
/* find in-order frame */
if (!SEQ_STEPONE(mpdu_blk->Sequence, StartSeq, MAXSEQ))
{
break;
}
/* dequeue in-order frame from reodering list */
mpdu_blk = ba_reordering_mpdu_dequeue(&pBAEntry->list);
/* pass this frame up */
ANNOUNCE_REORDERING_PACKET(pAd, mpdu_blk);
/* move to next sequence */
StartSeq = mpdu_blk->Sequence;
LastIndSeq = StartSeq;
/* free mpdu_blk */
ba_mpdu_blk_free(pAd, mpdu_blk);
}
NdisReleaseSpinLock(&pBAEntry->RxReRingLock);
/* update last indicated sequence */
return LastIndSeq;
}
static void ba_indicate_reordering_mpdus_le_seq(
PRTMP_ADAPTER pAd,
PBA_REC_ENTRY pBAEntry,
unsigned short Sequence)
{
struct reordering_mpdu *mpdu_blk;
NdisAcquireSpinLock(&pBAEntry->RxReRingLock);
while ((mpdu_blk = ba_reordering_mpdu_probe(&pBAEntry->list)))
{
/* find in-order frame */
if ((mpdu_blk->Sequence == Sequence) || SEQ_SMALLER(mpdu_blk->Sequence, Sequence, MAXSEQ))
{
/* dequeue in-order frame from reodering list */
mpdu_blk = ba_reordering_mpdu_dequeue(&pBAEntry->list);
/* pass this frame up */
ANNOUNCE_REORDERING_PACKET(pAd, mpdu_blk);
/* free mpdu_blk */
ba_mpdu_blk_free(pAd, mpdu_blk);
}
else
{
break;
}
}
NdisReleaseSpinLock(&pBAEntry->RxReRingLock);
}
static void ba_refresh_reordering_mpdus(
PRTMP_ADAPTER pAd,
PBA_REC_ENTRY pBAEntry)
{
struct reordering_mpdu *mpdu_blk;
NdisAcquireSpinLock(&pBAEntry->RxReRingLock);
/* dequeue in-order frame from reodering list */
while ((mpdu_blk = ba_reordering_mpdu_dequeue(&pBAEntry->list)))
{
/* pass this frame up */
ANNOUNCE_REORDERING_PACKET(pAd, mpdu_blk);
pBAEntry->LastIndSeq = mpdu_blk->Sequence;
ba_mpdu_blk_free(pAd, mpdu_blk);
/* update last indicated sequence */
}
ASSERT(pBAEntry->list.qlen == 0);
pBAEntry->LastIndSeq = RESET_RCV_SEQ;
NdisReleaseSpinLock(&pBAEntry->RxReRingLock);
}
/* static */
void ba_flush_reordering_timeout_mpdus(
PRTMP_ADAPTER pAd,
PBA_REC_ENTRY pBAEntry,
unsigned long Now32)
{
unsigned short Sequence;
if ((pBAEntry == NULL) || (pBAEntry->list.qlen <= 0))
return;
/* if ((RTMP_TIME_AFTER((unsigned long)Now32, (unsigned long)(pBAEntry->LastIndSeqAtTimer+REORDERING_PACKET_TIMEOUT)) &&*/
/* (pBAEntry->list.qlen > ((pBAEntry->BAWinSize*7)/8))) ||*/
/* (RTMP_TIME_AFTER((unsigned long)Now32, (unsigned long)(pBAEntry->LastIndSeqAtTimer+(10*REORDERING_PACKET_TIMEOUT))) &&*/
/* (pBAEntry->list.qlen > (pBAEntry->BAWinSize/8)))*/
if (RTMP_TIME_AFTER((unsigned long)Now32, (unsigned long)(pBAEntry->LastIndSeqAtTimer+(MAX_REORDERING_PACKET_TIMEOUT/6)))
&&(pBAEntry->list.qlen > 1)
)
{
DBGPRINT(RT_DEBUG_TRACE,("timeout[%d] (%08lx-%08lx = %d > %d): %x, flush all!\n ", pBAEntry->list.qlen, Now32, (pBAEntry->LastIndSeqAtTimer),
(int)((long) Now32 - (long)(pBAEntry->LastIndSeqAtTimer)), MAX_REORDERING_PACKET_TIMEOUT,
pBAEntry->LastIndSeq));
ba_refresh_reordering_mpdus(pAd, pBAEntry);
pBAEntry->LastIndSeqAtTimer = Now32;
}
else
if (RTMP_TIME_AFTER((unsigned long)Now32, (unsigned long)(pBAEntry->LastIndSeqAtTimer+(REORDERING_PACKET_TIMEOUT)))
&& (pBAEntry->list.qlen > 0)
)
{
/*
DBGPRINT(RT_DEBUG_OFF, ("timeout[%d] (%lx-%lx = %d > %d): %x, ", pBAEntry->list.qlen, Now32, (pBAEntry->LastIndSeqAtTimer),
(int)((long) Now32 - (long)(pBAEntry->LastIndSeqAtTimer)), REORDERING_PACKET_TIMEOUT,
pBAEntry->LastIndSeq));
*/
/* force LastIndSeq to shift to LastIndSeq+1*/
Sequence = (pBAEntry->LastIndSeq+1) & MAXSEQ;
ba_indicate_reordering_mpdus_le_seq(pAd, pBAEntry, Sequence);
pBAEntry->LastIndSeqAtTimer = Now32;
pBAEntry->LastIndSeq = Sequence;
/* indicate in-order mpdus*/
Sequence = ba_indicate_reordering_mpdus_in_order(pAd, pBAEntry, Sequence);
if (Sequence != RESET_RCV_SEQ)
{
pBAEntry->LastIndSeq = Sequence;
}
DBGPRINT(RT_DEBUG_OFF, ("%x, flush one!\n", pBAEntry->LastIndSeq));
}
}
/*
* generate ADDBA request to
* set up BA agreement
*/
void BAOriSessionSetUp(
PRTMP_ADAPTER pAd,
MAC_TABLE_ENTRY *pEntry,
unsigned char TID,
unsigned short TimeOut,
unsigned long DelayTime,
unsigned char isForced)
{
/*MLME_ADDBA_REQ_STRUCT AddbaReq;*/
BA_ORI_ENTRY *pBAEntry = NULL;
unsigned short Idx;
unsigned char Cancelled;
ASSERT(TID < NUM_OF_TID);
if (TID >= NUM_OF_TID)
{
DBGPRINT(RT_DEBUG_TRACE, ("Wrong TID %d!\n", TID));
return;
}
if ((pAd->CommonCfg.BACapability.field.AutoBA != TRUE) && (isForced == FALSE))
return;
/* if this entry is limited to use legacy tx mode, it doesn't generate BA. */
if (RTMPStaFixedTxMode(pAd, pEntry) != FIXED_TXMODE_HT)
return;
if ((pEntry->BADeclineBitmap & (1<<TID)) && (isForced == FALSE))
{
/* try again after 3 secs*/
DelayTime = 3000;
/* DBGPRINT(RT_DEBUG_TRACE, ("DeCline BA from Peer\n"));*/
/* return;*/
}
Idx = pEntry->BAOriWcidArray[TID];
if (Idx == 0)
{
/* allocate a BA session*/
pBAEntry = BATableAllocOriEntry(pAd, &Idx);
if (pBAEntry == NULL)
{
DBGPRINT(RT_DEBUG_TRACE,("ADDBA - MlmeADDBAAction() allocate BA session failed \n"));
return;
}
}
else
{
pBAEntry =&pAd->BATable.BAOriEntry[Idx];
}
if (pBAEntry->ORI_BA_Status >= Originator_WaitRes)
{
return;
}
pEntry->BAOriWcidArray[TID] = Idx;
/* Initialize BA session */
pBAEntry->ORI_BA_Status = Originator_WaitRes;
pBAEntry->Wcid = pEntry->Aid;
pBAEntry->BAWinSize = pAd->CommonCfg.BACapability.field.RxBAWinLimit;
pBAEntry->Sequence = BA_ORI_INIT_SEQ;
pBAEntry->Token = 1; /* (2008-01-21) Jan Lee recommends it - this token can't be 0*/
pBAEntry->TID = TID;
pBAEntry->TimeOutValue = TimeOut;
pBAEntry->pAdapter = pAd;
if (!(pEntry->TXBAbitmap & (1<<TID)))
{
RTMPInitTimer(pAd, &pBAEntry->ORIBATimer, GET_TIMER_FUNCTION(BAOriSessionSetupTimeout), pBAEntry, FALSE);
}
else
RTMPCancelTimer(&pBAEntry->ORIBATimer, &Cancelled);
/* set timer to send ADDBA request */
RTMPSetTimer(&pBAEntry->ORIBATimer, DelayTime);
}
void BAOriSessionAdd(
PRTMP_ADAPTER pAd,
MAC_TABLE_ENTRY *pEntry,
PFRAME_ADDBA_RSP pFrame)
{
BA_ORI_ENTRY *pBAEntry = NULL;
unsigned char Cancelled;
unsigned char TID;
unsigned short Idx;
unsigned char* pOutBuffer2 = NULL;
int NStatus;
unsigned long FrameLen;
FRAME_BAR FrameBar;
unsigned char MaxPeerBufSize;
TID = pFrame->BaParm.TID;
Idx = pEntry->BAOriWcidArray[TID];
pBAEntry =&pAd->BATable.BAOriEntry[Idx];
MaxPeerBufSize = 0;
/* Start fill in parameters.*/
if ((Idx !=0) && (pBAEntry->TID == TID) && (pBAEntry->ORI_BA_Status == Originator_WaitRes))
{
MaxPeerBufSize = (unsigned char)pFrame->BaParm.BufSize;
if (MaxPeerBufSize > 0)
MaxPeerBufSize -= 1;
else
MaxPeerBufSize = 0;
pBAEntry->BAWinSize = min(pBAEntry->BAWinSize, MaxPeerBufSize);
BA_MaxWinSizeReasign(pAd, pEntry, &pBAEntry->BAWinSize);
pBAEntry->TimeOutValue = pFrame->TimeOutValue;
pBAEntry->ORI_BA_Status = Originator_Done;
pAd->BATable.numDoneOriginator ++;
/* reset sequence number */
pBAEntry->Sequence = BA_ORI_INIT_SEQ;
/* Set Bitmap flag.*/
pEntry->TXBAbitmap |= (1<<TID);
RTMPCancelTimer(&pBAEntry->ORIBATimer, &Cancelled);
pBAEntry->ORIBATimer.TimerValue = 0; /*pFrame->TimeOutValue;*/
DBGPRINT(RT_DEBUG_TRACE, ("%s():TXBAbitmap=%x, BAWinSize=%d, TimeOut=%ld\n",
__FUNCTION__, pEntry->TXBAbitmap,
pBAEntry->BAWinSize, pBAEntry->ORIBATimer.TimerValue));
/* SEND BAR */
NStatus = MlmeAllocateMemory(pAd, &pOutBuffer2); /*Get an unused nonpaged memory*/
if (NStatus != NDIS_STATUS_SUCCESS)
{
DBGPRINT(RT_DEBUG_TRACE,("BA - BAOriSessionAdd() allocate memory failed \n"));
return;
}
#ifdef CONFIG_STA_SUPPORT
IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
BarHeaderInit(pAd, &FrameBar, pAd->MacTab.Content[pBAEntry->Wcid].Addr, pAd->CurrentAddress);
#endif /* CONFIG_STA_SUPPORT */
FrameBar.StartingSeq.field.FragNum = 0; /* make sure sequence not clear in DEL function.*/
FrameBar.StartingSeq.field.StartSeq = pBAEntry->Sequence; /* make sure sequence not clear in DEL funciton.*/
FrameBar.BarControl.TID = pBAEntry->TID; /* make sure sequence not clear in DEL funciton.*/
MakeOutgoingFrame(pOutBuffer2, &FrameLen,
sizeof(FRAME_BAR), &FrameBar,
END_OF_ARGS);
MiniportMMRequest(pAd, QID_AC_BE, pOutBuffer2, FrameLen);
MlmeFreeMemory(pAd, pOutBuffer2);
if (pBAEntry->ORIBATimer.TimerValue)
RTMPSetTimer(&pBAEntry->ORIBATimer, pBAEntry->ORIBATimer.TimerValue); /* in mSec */
}
}
unsigned char BARecSessionAdd(
PRTMP_ADAPTER pAd,
MAC_TABLE_ENTRY *pEntry,
PFRAME_ADDBA_REQ pFrame)
{
BA_REC_ENTRY *pBAEntry = NULL;
unsigned char Status = TRUE;
unsigned char Cancelled;
unsigned short Idx;
unsigned char TID;
unsigned char BAWinSize;
/*UINT32 Value;*/
/*unsigned int offset;*/
ASSERT(pEntry);
/* find TID*/
TID = pFrame->BaParm.TID;
BAWinSize = min(((unsigned char)pFrame->BaParm.BufSize), (unsigned char)pAd->CommonCfg.BACapability.field.RxBAWinLimit);
/* Intel patch*/
if (BAWinSize == 0)
{
BAWinSize = 64;
}
/* get software BA rec array index, Idx*/
Idx = pEntry->BARecWcidArray[TID];
if (Idx == 0)
{
/* allocate new array entry for the new session*/
pBAEntry = BATableAllocRecEntry(pAd, &Idx);
}
else
{
pBAEntry = &pAd->BATable.BARecEntry[Idx];
/* flush all pending reordering mpdus*/
ba_refresh_reordering_mpdus(pAd, pBAEntry);
}
DBGPRINT(RT_DEBUG_TRACE,("%s(%ld): Idx = %d, BAWinSize(req %d) = %d\n", __FUNCTION__, pAd->BATable.numAsRecipient, Idx,
pFrame->BaParm.BufSize, BAWinSize));
/* Start fill in parameters.*/
if (pBAEntry != NULL)
{
ASSERT(pBAEntry->list.qlen == 0);
pBAEntry->REC_BA_Status = Recipient_HandleRes;
pBAEntry->BAWinSize = BAWinSize;
pBAEntry->Wcid = pEntry->Aid;
pBAEntry->TID = TID;
pBAEntry->TimeOutValue = pFrame->TimeOutValue;
pBAEntry->REC_BA_Status = Recipient_Accept;
/* initial sequence number */
pBAEntry->LastIndSeq = RESET_RCV_SEQ; /*pFrame->BaStartSeq.field.StartSeq;*/
DBGPRINT(RT_DEBUG_OFF, ("Start Seq = %08x\n", pFrame->BaStartSeq.field.StartSeq));
if (pEntry->RXBAbitmap & (1<<TID))
{
RTMPCancelTimer(&pBAEntry->RECBATimer, &Cancelled);
}
else
{
RTMPInitTimer(pAd, &pBAEntry->RECBATimer, GET_TIMER_FUNCTION(BARecSessionIdleTimeout), pBAEntry, TRUE);
}
/* Set Bitmap flag.*/
pEntry->RXBAbitmap |= (1<<TID);
pEntry->BARecWcidArray[TID] = Idx;
pEntry->BADeclineBitmap &= ~(1<<TID);
/* Set BA session mask in WCID table.*/
RTMP_ADD_BA_SESSION_TO_ASIC(pAd, pEntry->Aid, TID);
DBGPRINT(RT_DEBUG_TRACE,("MACEntry[%d]RXBAbitmap = 0x%x. BARecWcidArray=%d\n",
pEntry->Aid, pEntry->RXBAbitmap, pEntry->BARecWcidArray[TID]));
}
else
{
Status = FALSE;
DBGPRINT(RT_DEBUG_TRACE,("Can't Accept ADDBA for %02x:%02x:%02x:%02x:%02x:%02x TID = %d\n",
PRINT_MAC(pEntry->Addr), TID));
}
return(Status);
}
BA_REC_ENTRY *BATableAllocRecEntry(
PRTMP_ADAPTER pAd,
unsigned short *Idx)
{
int i;
BA_REC_ENTRY *pBAEntry = NULL;
NdisAcquireSpinLock(&pAd->BATabLock);
if (pAd->BATable.numAsRecipient >= (MAX_LEN_OF_BA_REC_TABLE - 1))
{
DBGPRINT(RT_DEBUG_OFF, ("BA Recipeint Session (%ld) > %d\n",
pAd->BATable.numAsRecipient, (MAX_LEN_OF_BA_REC_TABLE - 1)));
goto done;
}
/* reserve idx 0 to identify BAWcidArray[TID] as empty*/
for (i=1; i < MAX_LEN_OF_BA_REC_TABLE; i++)
{
pBAEntry =&pAd->BATable.BARecEntry[i];
if ((pBAEntry->REC_BA_Status == Recipient_NONE))
{
/* get one */
pAd->BATable.numAsRecipient++;
pBAEntry->REC_BA_Status = Recipient_USED;
*Idx = i;
break;
}
}
done:
NdisReleaseSpinLock(&pAd->BATabLock);
return pBAEntry;
}
BA_ORI_ENTRY *BATableAllocOriEntry(
PRTMP_ADAPTER pAd,
unsigned short *Idx)
{
int i;
BA_ORI_ENTRY *pBAEntry = NULL;
NdisAcquireSpinLock(&pAd->BATabLock);
if (pAd->BATable.numAsOriginator >= (MAX_LEN_OF_BA_ORI_TABLE - 1))
{
goto done;
}
/* reserve idx 0 to identify BAWcidArray[TID] as empty*/
for (i=1; i<MAX_LEN_OF_BA_ORI_TABLE; i++)
{
pBAEntry =&pAd->BATable.BAOriEntry[i];
if ((pBAEntry->ORI_BA_Status == Originator_NONE))
{
/* get one */
pAd->BATable.numAsOriginator++;
pBAEntry->ORI_BA_Status = Originator_USED;
pBAEntry->pAdapter = pAd;
*Idx = i;
break;
}
}
done:
NdisReleaseSpinLock(&pAd->BATabLock);
return pBAEntry;
}
void BATableFreeOriEntry(
PRTMP_ADAPTER pAd,
unsigned long Idx)
{
BA_ORI_ENTRY *pBAEntry = NULL;
MAC_TABLE_ENTRY *pEntry;
if ((Idx == 0) || (Idx >= MAX_LEN_OF_BA_ORI_TABLE))
return;
pBAEntry =&pAd->BATable.BAOriEntry[Idx];
if (pBAEntry->ORI_BA_Status != Originator_NONE)
{
pEntry = &pAd->MacTab.Content[pBAEntry->Wcid];
pEntry->BAOriWcidArray[pBAEntry->TID] = 0;
DBGPRINT(RT_DEBUG_TRACE, ("%s: Wcid = %d, TID = %d\n", __FUNCTION__, pBAEntry->Wcid, pBAEntry->TID));
NdisAcquireSpinLock(&pAd->BATabLock);
if (pBAEntry->ORI_BA_Status == Originator_Done)
{
pAd->BATable.numDoneOriginator -= 1;
pEntry->TXBAbitmap &= (~(1<<(pBAEntry->TID) ));
DBGPRINT(RT_DEBUG_TRACE, ("BATableFreeOriEntry numAsOriginator= %ld\n", pAd->BATable.numAsRecipient));
/* Erase Bitmap flag.*/
}
ASSERT(pAd->BATable.numAsOriginator != 0);
pAd->BATable.numAsOriginator -= 1;
pBAEntry->ORI_BA_Status = Originator_NONE;
pBAEntry->Token = 0;
NdisReleaseSpinLock(&pAd->BATabLock);
}
}
void BATableFreeRecEntry(
PRTMP_ADAPTER pAd,
unsigned long Idx)
{
BA_REC_ENTRY *pBAEntry = NULL;
MAC_TABLE_ENTRY *pEntry;
if ((Idx == 0) || (Idx >= MAX_LEN_OF_BA_REC_TABLE))
return;
pBAEntry =&pAd->BATable.BARecEntry[Idx];
if (pBAEntry->REC_BA_Status != Recipient_NONE)
{
pEntry = &pAd->MacTab.Content[pBAEntry->Wcid];
pEntry->BARecWcidArray[pBAEntry->TID] = 0;
NdisAcquireSpinLock(&pAd->BATabLock);
ASSERT(pAd->BATable.numAsRecipient != 0);
pAd->BATable.numAsRecipient -= 1;
pBAEntry->REC_BA_Status = Recipient_NONE;
NdisReleaseSpinLock(&pAd->BATabLock);
}
}
void BAOriSessionTearDown(
PRTMP_ADAPTER pAd,
unsigned char Wcid,
unsigned char TID,
unsigned char bPassive,
unsigned char bForceSend)
{
unsigned long Idx = 0;
BA_ORI_ENTRY *pBAEntry;
unsigned char Cancelled;
if (Wcid >= MAX_LEN_OF_MAC_TABLE)
{
return;
}
/* Locate corresponding BA Originator Entry in BA Table with the (pAddr,TID).*/
Idx = pAd->MacTab.Content[Wcid].BAOriWcidArray[TID];
if ((Idx == 0) || (Idx >= MAX_LEN_OF_BA_ORI_TABLE))
{
if (bForceSend == TRUE)
{
/* force send specified TID DelBA*/
MLME_DELBA_REQ_STRUCT DelbaReq;
MLME_QUEUE_ELEM *Elem; /* = (MLME_QUEUE_ELEM *) kmalloc(sizeof(MLME_QUEUE_ELEM), MEM_ALLOC_FLAG);*/
os_alloc_mem(NULL, (unsigned char **)&Elem, sizeof(MLME_QUEUE_ELEM));
if (Elem != NULL)
{
NdisZeroMemory(&DelbaReq, sizeof(DelbaReq));
NdisZeroMemory(Elem, sizeof(MLME_QUEUE_ELEM));
COPY_MAC_ADDR(DelbaReq.Addr, pAd->MacTab.Content[Wcid].Addr);
DelbaReq.Wcid = Wcid;
DelbaReq.TID = TID;
DelbaReq.Initiator = ORIGINATOR;
Elem->MsgLen = sizeof(DelbaReq);
NdisMoveMemory(Elem->Msg, &DelbaReq, sizeof(DelbaReq));
MlmeDELBAAction(pAd, Elem);
/* kfree(Elem);*/
os_free_mem(NULL, Elem);
}
else
{
DBGPRINT(RT_DEBUG_ERROR, ("%s(bForceSend):alloc memory failed!\n", __FUNCTION__));
}
}
return;
}
DBGPRINT(RT_DEBUG_TRACE,("%s===>Wcid=%d.TID=%d \n", __FUNCTION__, Wcid, TID));
pBAEntry = &pAd->BATable.BAOriEntry[Idx];
DBGPRINT(RT_DEBUG_TRACE,("\t===>Idx = %ld, Wcid=%d.TID=%d, ORI_BA_Status = %d \n", Idx, Wcid, TID, pBAEntry->ORI_BA_Status));
/* Prepare DelBA action frame and send to the peer.*/
if ((bPassive == FALSE) && (TID == pBAEntry->TID) && (pBAEntry->ORI_BA_Status == Originator_Done))
{
MLME_DELBA_REQ_STRUCT DelbaReq;
MLME_QUEUE_ELEM *Elem; /* = (MLME_QUEUE_ELEM *) kmalloc(sizeof(MLME_QUEUE_ELEM), MEM_ALLOC_FLAG);*/
os_alloc_mem(NULL, (unsigned char **)&Elem, sizeof(MLME_QUEUE_ELEM));
if (Elem != NULL)
{
NdisZeroMemory(&DelbaReq, sizeof(DelbaReq));
NdisZeroMemory(Elem, sizeof(MLME_QUEUE_ELEM));
COPY_MAC_ADDR(DelbaReq.Addr, pAd->MacTab.Content[Wcid].Addr);
DelbaReq.Wcid = Wcid;
DelbaReq.TID = pBAEntry->TID;
DelbaReq.Initiator = ORIGINATOR;
Elem->MsgLen = sizeof(DelbaReq);
NdisMoveMemory(Elem->Msg, &DelbaReq, sizeof(DelbaReq));
MlmeDELBAAction(pAd, Elem);
/* kfree(Elem);*/
os_free_mem(NULL, Elem);
}
else
{
DBGPRINT(RT_DEBUG_ERROR, ("%s():alloc memory failed!\n", __FUNCTION__));
return;
}
}
RTMPCancelTimer(&pBAEntry->ORIBATimer, &Cancelled);
BATableFreeOriEntry(pAd, Idx);
if (bPassive)
{
/*BAOriSessionSetUp(pAd, &pAd->MacTab.Content[Wcid], TID, 0, 10000, TRUE);*/
}
}
void BARecSessionTearDown(
PRTMP_ADAPTER pAd,
unsigned char Wcid,
unsigned char TID,
unsigned char bPassive)
{
unsigned long Idx = 0;
BA_REC_ENTRY *pBAEntry;
if (Wcid >= MAX_LEN_OF_MAC_TABLE)
{
return;
}