void vos_mem_clean()
{
v_SIZE_t listSize;
hdd_list_size(&vosMemList, &listSize);
if(listSize)
{
hdd_list_node_t* pNode;
VOS_STATUS vosStatus;
struct s_vos_mem_struct* memStruct;
VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR,
"%s: List is not Empty. listSize %d ", __FUNCTION__, (int)listSize);
do
{
spin_lock(&vosMemList.lock);
vosStatus = hdd_list_remove_front(&vosMemList, &pNode);
spin_unlock(&vosMemList.lock);
if(VOS_STATUS_SUCCESS == vosStatus)
{
memStruct = (struct s_vos_mem_struct*)pNode;
VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL,
"Memory Leak@ File %s, @Line %d, size %d",
memStruct->fileName, (int)memStruct->lineNum, memStruct->size);
kfree((v_VOID_t*)memStruct);
}
}while(vosStatus == VOS_STATUS_SUCCESS);
}
}
static void vos_timer_clean()
{
v_SIZE_t listSize;
unsigned long flags;
hdd_list_size(&vosTimerList, &listSize);
if (listSize)
{
hdd_list_node_t* pNode;
VOS_STATUS vosStatus;
timer_node_t *ptimerNode;
VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR,
"%s: List is not Empty. listSize %d ",
__func__, (int)listSize);
do
{
spin_lock_irqsave(&vosTimerList.lock, flags);
vosStatus = hdd_list_remove_front(&vosTimerList, &pNode);
spin_unlock_irqrestore(&vosTimerList.lock, flags);
if (VOS_STATUS_SUCCESS == vosStatus)
{
ptimerNode = (timer_node_t*)pNode;
VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL,
"Timer Leak@ File %s, @Line %d",
ptimerNode->fileName, (int)ptimerNode->lineNum);
vos_mem_free(ptimerNode);
}
} while (vosStatus == VOS_STATUS_SUCCESS);
}
}
/**============================================================================
@brief hdd_flush_tx_queues() - Utility function to flush the TX queues
@param pAdapter : [in] pointer to adapter context
@return : VOS_STATUS_E_FAILURE if any errors encountered
: VOS_STATUS_SUCCESS otherwise
===========================================================================*/
static VOS_STATUS hdd_flush_tx_queues( hdd_adapter_t *pAdapter )
{
VOS_STATUS status = VOS_STATUS_SUCCESS;
v_SINT_t i = -1;
hdd_list_node_t *anchor = NULL;
skb_list_node_t *pktNode = NULL;
struct sk_buff *skb = NULL;
while (++i != NUM_TX_QUEUES)
{
//Free up any packets in the Tx queue
spin_lock_bh(&pAdapter->wmm_tx_queue[i].lock);
while (true)
{
status = hdd_list_remove_front( &pAdapter->wmm_tx_queue[i], &anchor );
if(VOS_STATUS_E_EMPTY != status)
{
pktNode = list_entry(anchor, skb_list_node_t, anchor);
skb = pktNode->skb;
//TODO
//++pAdapter->stats.tx_dropped;
++pAdapter->hdd_stats.hddTxRxStats.txFlushed;
++pAdapter->hdd_stats.hddTxRxStats.txFlushedAC[i];
kfree_skb(skb);
continue;
}
break;
}
spin_unlock_bh(&pAdapter->wmm_tx_queue[i].lock);
// backpressure is no longer in effect
pAdapter->isTxSuspended[i] = VOS_FALSE;
}
return status;
}
static struct sk_buff* hdd_mon_tx_fetch_pkt(hdd_adapter_t* pAdapter)
{
skb_list_node_t *pktNode = NULL;
struct sk_buff *skb = NULL;
v_SIZE_t size = 0;
WLANTL_ACEnumType ac = 0;
VOS_STATUS status = VOS_STATUS_E_FAILURE;
hdd_list_node_t *anchor = NULL;
if( NULL == pAdapter )
{
VOS_ASSERT(0);
return NULL;
}
// do we have any packets pending in this AC?
hdd_list_size( &pAdapter->wmm_tx_queue[ac], &size );
if( size == 0 )
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: NO Packet Pending", __FUNCTION__);
return NULL;
}
//Remove the packet from the queue
spin_lock_bh(&pAdapter->wmm_tx_queue[ac].lock);
status = hdd_list_remove_front( &pAdapter->wmm_tx_queue[ac], &anchor );
spin_unlock_bh(&pAdapter->wmm_tx_queue[ac].lock);
if(VOS_STATUS_SUCCESS == status)
{
//If success then we got a valid packet from some AC
pktNode = list_entry(anchor, skb_list_node_t, anchor);
skb = pktNode->skb;
}
else
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: Not able to remove Packet from the list",
__FUNCTION__);
return NULL;
}
// if we are in a backpressure situation see if we can turn the hose back on
if ( (pAdapter->isTxSuspended[ac]) &&
(size <= HDD_TX_QUEUE_LOW_WATER_MARK) )
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_WARN,
"%s: TX queue[%d] re-enabled", __FUNCTION__, ac);
pAdapter->isTxSuspended[ac] = VOS_FALSE;
/* Enable Queues which we have disabled earlier */
netif_tx_start_all_queues( pAdapter->dev );
}
return skb;
}
void vos_mem_clean()
{
v_SIZE_t listSize;
hdd_list_size(&vosMemList, &listSize);
if(listSize)
{
hdd_list_node_t* pNode;
VOS_STATUS vosStatus;
struct s_vos_mem_struct* memStruct;
const char *prev_mleak_file = "";
unsigned int prev_mleak_lineNum = 0;
unsigned int prev_mleak_sz = 0;
unsigned int mleak_cnt = 0;
VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR,
"%s: List is not Empty. listSize %d ", __func__, (int)listSize);
do
{
spin_lock(&vosMemList.lock);
vosStatus = hdd_list_remove_front(&vosMemList, &pNode);
spin_unlock(&vosMemList.lock);
if(VOS_STATUS_SUCCESS == vosStatus)
{
memStruct = (struct s_vos_mem_struct*)pNode;
/* Take care to log only once multiple memory leaks from
* the same place */
if(strcmp(prev_mleak_file, memStruct->fileName) ||
(prev_mleak_lineNum != memStruct->lineNum) ||
(prev_mleak_sz != memStruct->size))
{
if(mleak_cnt != 0)
{
VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL,
"%d Time Memory Leak@ File %s, @Line %d, size %d",
mleak_cnt, prev_mleak_file, prev_mleak_lineNum,
prev_mleak_sz);
}
prev_mleak_file = memStruct->fileName;
prev_mleak_lineNum = memStruct->lineNum;
prev_mleak_sz = memStruct->size;
mleak_cnt = 0;
}
mleak_cnt++;
vos_mem_print_stack_trace(memStruct);
kfree((v_VOID_t*)memStruct);
}
}while(vosStatus == VOS_STATUS_SUCCESS);
/* Print last memory leak from the module */
if(mleak_cnt)
{
VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_FATAL,
"%d Time memory Leak@ File %s, @Line %d, size %d",
mleak_cnt, prev_mleak_file, prev_mleak_lineNum,
prev_mleak_sz);
}
#ifdef CONFIG_HALT_KMEMLEAK
BUG_ON(0);
#endif
}
dump_trace_usage();
}
/**============================================================================
@brief hdd_tx_fetch_packet_cbk() - Callback function invoked by TL to
fetch a packet for transmission.
@param vosContext : [in] pointer to VOS context
@param staId : [in] Station for which TL is requesting a pkt
@param ac : [in] access category requested by TL
@param pVosPacket : [out] pointer to VOS packet packet pointer
@param pPktMetaInfo : [out] pointer to meta info for the pkt
@return : VOS_STATUS_E_EMPTY if no packets to transmit
: VOS_STATUS_E_FAILURE if any errors encountered
: VOS_STATUS_SUCCESS otherwise
===========================================================================*/
VOS_STATUS hdd_tx_fetch_packet_cbk( v_VOID_t *vosContext,
v_U8_t *pStaId,
WLANTL_ACEnumType ac,
vos_pkt_t **ppVosPacket,
WLANTL_MetaInfoType *pPktMetaInfo )
{
VOS_STATUS status = VOS_STATUS_E_FAILURE;
hdd_adapter_t *pAdapter = NULL;
hdd_context_t *pHddCtx = NULL;
hdd_list_node_t *anchor = NULL;
skb_list_node_t *pktNode = NULL;
struct sk_buff *skb = NULL;
vos_pkt_t *pVosPacket = NULL;
v_MACADDR_t* pDestMacAddress = NULL;
v_TIME_t timestamp;
WLANTL_ACEnumType newAc;
v_SIZE_t size = 0;
tANI_U8 acAdmitted, i;
//Sanity check on inputs
if ( ( NULL == vosContext ) ||
( NULL == pStaId ) ||
( NULL == ppVosPacket ) ||
( NULL == pPktMetaInfo ) )
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,"%s: Null Params being passed", __FUNCTION__);
return VOS_STATUS_E_FAILURE;
}
//Get the HDD context.
pHddCtx = (hdd_context_t *)vos_get_context( VOS_MODULE_ID_HDD, vosContext );
if(pHddCtx == NULL)
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,"%s: HDD adapter context is Null", __FUNCTION__);
return VOS_STATUS_E_FAILURE;
}
pAdapter = pHddCtx->sta_to_adapter[*pStaId];
if( NULL == pAdapter )
{
VOS_ASSERT(0);
return VOS_STATUS_E_FAILURE;
}
++pAdapter->hdd_stats.hddTxRxStats.txFetched;
*ppVosPacket = NULL;
//Make sure the AC being asked for is sane
if( ac >= WLANTL_MAX_AC || ac < 0)
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,"%s: Invalid AC %d passed by TL", __FUNCTION__, ac);
return VOS_STATUS_E_FAILURE;
}
++pAdapter->hdd_stats.hddTxRxStats.txFetchedAC[ac];
#ifdef HDD_WMM_DEBUG
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_FATAL,"%s: AC %d passed by TL", __FUNCTION__, ac);
#endif // HDD_WMM_DEBUG
// We find an AC with packets
// or we determine we have no more packets to send
// HDD is not allowed to change AC.
// has this AC been admitted? or
// To allow EAPOL packets when not authenticated
if (unlikely((0==pAdapter->hddWmmStatus.wmmAcStatus[ac].wmmAcAccessAllowed) &&
(WLAN_HDD_GET_STATION_CTX_PTR(pAdapter))->conn_info.uIsAuthenticated))
{
++pAdapter->hdd_stats.hddTxRxStats.txFetchEmpty;
#ifdef HDD_WMM_DEBUG
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_FATAL,
"%s: no packets pending", __FUNCTION__);
#endif // HDD_WMM_DEBUG
return VOS_STATUS_E_FAILURE;
}
// do we have any packets pending in this AC?
hdd_list_size( &pAdapter->wmm_tx_queue[ac], &size );
if( size > 0 )
{
// yes, so process it
#ifdef HDD_WMM_DEBUG
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_FATAL,
"%s: AC %d has packets pending", __FUNCTION__, ac);
#endif // HDD_WMM_DEBUG
}
else
{
++pAdapter->hdd_stats.hddTxRxStats.txFetchEmpty;
#ifdef HDD_WMM_DEBUG
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_FATAL,
"%s: no packets pending", __FUNCTION__);
#endif // HDD_WMM_DEBUG
return VOS_STATUS_E_FAILURE;
}
//Get the vos packet. I don't want to dequeue and enqueue again if we are out of VOS resources
//This simplifies the locking and unlocking of Tx queue
status = vos_pkt_wrap_data_packet( &pVosPacket,
VOS_PKT_TYPE_TX_802_3_DATA,
NULL, //OS Pkt is not being passed
hdd_tx_low_resource_cbk,
pAdapter );
if (status == VOS_STATUS_E_ALREADY || status == VOS_STATUS_E_RESOURCES)
{
//Remember VOS is in a low resource situation
pAdapter->isVosOutOfResource = VOS_TRUE;
++pAdapter->hdd_stats.hddTxRxStats.txFetchLowResources;
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_WARN,"%s: VOSS in Low Resource scenario", __FUNCTION__);
//TL will now think we have no more packets in this AC
return VOS_STATUS_E_FAILURE;
}
//Remove the packet from the queue
spin_lock_bh(&pAdapter->wmm_tx_queue[ac].lock);
status = hdd_list_remove_front( &pAdapter->wmm_tx_queue[ac], &anchor );
spin_unlock_bh(&pAdapter->wmm_tx_queue[ac].lock);
if(VOS_STATUS_SUCCESS == status)
{
//If success then we got a valid packet from some AC
pktNode = list_entry(anchor, skb_list_node_t, anchor);
skb = pktNode->skb;
}
else
{
++pAdapter->hdd_stats.hddTxRxStats.txFetchDequeueError;
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_WARN, "%s: Error in de-queuing "
"skb from Tx queue status = %d", __FUNCTION__, status );
vos_pkt_return_packet(pVosPacket);
return VOS_STATUS_E_FAILURE;
}
//Attach skb to VOS packet.
status = vos_pkt_set_os_packet( pVosPacket, skb );
if (status != VOS_STATUS_SUCCESS)
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_WARN,"%s: Error attaching skb", __FUNCTION__);
vos_pkt_return_packet(pVosPacket);
++pAdapter->stats.tx_dropped;
++pAdapter->hdd_stats.hddTxRxStats.txFetchDequeueError;
kfree_skb(skb);
return VOS_STATUS_E_FAILURE;
}
//Just being paranoid. To be removed later
if(pVosPacket == NULL)
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_WARN,"%s: VOS packet returned by VOSS is NULL", __FUNCTION__);
++pAdapter->stats.tx_dropped;
++pAdapter->hdd_stats.hddTxRxStats.txFetchDequeueError;
kfree_skb(skb);
return VOS_STATUS_E_FAILURE;
}
//Return VOS packet to TL;
*ppVosPacket = pVosPacket;
//Fill out the meta information needed by TL
//FIXME This timestamp is really the time stamp of wrap_data_packet
vos_pkt_get_timestamp( pVosPacket, ×tamp );
pPktMetaInfo->usTimeStamp = (v_U16_t)timestamp;
if(pAdapter->sessionCtx.station.conn_info.uIsAuthenticated == VOS_TRUE)
pPktMetaInfo->ucIsEapol = 0;
else
pPktMetaInfo->ucIsEapol = hdd_IsEAPOLPacket( pVosPacket ) ? 1 : 0;
#ifdef FEATURE_WLAN_WAPI
// Override usIsEapol value when its zero for WAPI case
pPktMetaInfo->ucIsWai = hdd_IsWAIPacket( pVosPacket ) ? 1 : 0;
#endif /* FEATURE_WLAN_WAPI */
if ((HDD_WMM_USER_MODE_NO_QOS == pHddCtx->cfg_ini->WmmMode) ||
(!pAdapter->hddWmmStatus.wmmQap))
{
// either we don't want QoS or the AP doesn't support QoS
pPktMetaInfo->ucUP = 0;
pPktMetaInfo->ucTID = 0;
}
else
{
/* 1. Check if ACM is set for this AC
* 2. If set, check if this AC had already admitted
* 3. If not already admitted, downgrade the UP to next best UP */
if(!pAdapter->hddWmmStatus.wmmAcStatus[ac].wmmAcAccessRequired ||
pAdapter->hddWmmStatus.wmmAcStatus[ac].wmmAcTspecValid)
{
pPktMetaInfo->ucUP = pktNode->userPriority;
pPktMetaInfo->ucTID = pPktMetaInfo->ucUP;
}
else
{
//Downgrade the UP
acAdmitted = pAdapter->hddWmmStatus.wmmAcStatus[ac].wmmAcTspecValid;
newAc = WLANTL_AC_BK;
for (i=ac-1; i>0; i--)
{
if (pAdapter->hddWmmStatus.wmmAcStatus[i].wmmAcAccessRequired == 0)
{
newAc = i;
break;
}
}
pPktMetaInfo->ucUP = hddWmmAcToHighestUp[newAc];
pPktMetaInfo->ucTID = pPktMetaInfo->ucUP;
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO_LOW,"Downgrading UP %d to UP %d ", pktNode->userPriority, pPktMetaInfo->ucUP);
}
}
pPktMetaInfo->ucType = 0; //FIXME Don't know what this is
pPktMetaInfo->ucDisableFrmXtl = 0; //802.3 frame so we need to xlate
if ( 1 < size )
{
pPktMetaInfo->bMorePackets = 1; //HDD has more packets to send
}
else
{
pPktMetaInfo->bMorePackets = 0;
}
//Extract the destination address from ethernet frame
pDestMacAddress = (v_MACADDR_t*)skb->data;
pPktMetaInfo->ucBcast = vos_is_macaddr_broadcast( pDestMacAddress ) ? 1 : 0;
pPktMetaInfo->ucMcast = vos_is_macaddr_group( pDestMacAddress ) ? 1 : 0;
// if we are in a backpressure situation see if we can turn the hose back on
if ( (pAdapter->isTxSuspended[ac]) &&
(size <= HDD_TX_QUEUE_LOW_WATER_MARK) )
{
++pAdapter->hdd_stats.hddTxRxStats.txFetchDePressured;
++pAdapter->hdd_stats.hddTxRxStats.txFetchDePressuredAC[ac];
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_WARN,
"%s: TX queue[%d] re-enabled", __FUNCTION__, ac);
pAdapter->isTxSuspended[ac] = VOS_FALSE;
netif_tx_wake_queue(netdev_get_tx_queue(pAdapter->dev,
skb_get_queue_mapping(skb) ));
}
// We're giving the packet to TL so consider it transmitted from
// a statistics perspective. We account for it here instead of
// when the packet is returned for two reasons. First, TL will
// manipulate the skb to the point where the len field is not
// accurate, leading to inaccurate byte counts if we account for
// it later. Second, TL does not provide any feedback as to
// whether or not the packet was successfully sent over the air,
// so the packet counts will be the same regardless of where we
// account for them
pAdapter->stats.tx_bytes += skb->len;
++pAdapter->stats.tx_packets;
++pAdapter->hdd_stats.hddTxRxStats.txFetchDequeued;
++pAdapter->hdd_stats.hddTxRxStats.txFetchDequeuedAC[ac];
if(pHddCtx->cfg_ini->thermalMitigationEnable)
{
if(mutex_lock_interruptible(&pHddCtx->tmInfo.tmOperationLock))
{
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
"%s: Tm Lock fail", __FUNCTION__);
return VOS_STATUS_E_FAILURE;
}
if(WLAN_HDD_TM_LEVEL_1 < pHddCtx->tmInfo.currentTmLevel)
{
if(0 == pHddCtx->tmInfo.txFrameCount)
{
/* Just recovered from sleep timeout */
pHddCtx->tmInfo.lastOpenTs = timestamp;
}
if(((timestamp - pHddCtx->tmInfo.lastOpenTs) > (pHddCtx->tmInfo.tmAction.txOperationDuration / 10)) &&
(pHddCtx->tmInfo.txFrameCount >= pHddCtx->tmInfo.tmAction.txBlockFrameCountThreshold))
{
spin_lock(&pAdapter->wmm_tx_queue[ac].lock);
/* During TX open duration, TX frame count is larger than threshold
* Block TX during Sleep time */
netif_tx_stop_all_queues(pAdapter->dev);
spin_unlock(&pAdapter->wmm_tx_queue[ac].lock);
pHddCtx->tmInfo.lastblockTs = timestamp;
if(VOS_TIMER_STATE_STOPPED == vos_timer_getCurrentState(&pHddCtx->tmInfo.txSleepTimer))
{
vos_timer_start(&pHddCtx->tmInfo.txSleepTimer, pHddCtx->tmInfo.tmAction.txSleepDuration);
}
}
else if(((timestamp - pHddCtx->tmInfo.lastOpenTs) > (pHddCtx->tmInfo.tmAction.txOperationDuration / 10)) &&
(pHddCtx->tmInfo.txFrameCount < pHddCtx->tmInfo.tmAction.txBlockFrameCountThreshold))
{
/* During TX open duration, TX frame count is less than threshold
* Reset count and timestamp to prepare next cycle */
pHddCtx->tmInfo.lastOpenTs = timestamp;
pHddCtx->tmInfo.txFrameCount = 0;
}
else
{
/* Do Nothing */
}
pHddCtx->tmInfo.txFrameCount++;
}
mutex_unlock(&pHddCtx->tmInfo.tmOperationLock);
}
#ifdef HDD_WMM_DEBUG
VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_FATAL,"%s: Valid VOS PKT returned to TL", __FUNCTION__);
#endif // HDD_WMM_DEBUG
return status;
}