Esempio n. 1
0
static s32 _rtw_mi_buddy_clone_bcmc_packet(_adapter *adapter, union recv_frame *precvframe, u8 *pphy_status, union recv_frame *pcloneframe)
{
    s32 ret = _SUCCESS;
    u8 *pbuf = precvframe->u.hdr.rx_data;
    struct rx_pkt_attrib *pattrib = NULL;
    HAL_DATA_TYPE	*pHalData = GET_HAL_DATA(adapter);

    if (pcloneframe) {
        pcloneframe->u.hdr.adapter = adapter;

        _rtw_init_listhead(&pcloneframe->u.hdr.list);
        pcloneframe->u.hdr.precvbuf = NULL;	/*can't access the precvbuf for new arch.*/
        pcloneframe->u.hdr.len = 0;

        _rtw_memcpy(&pcloneframe->u.hdr.attrib, &precvframe->u.hdr.attrib, sizeof(struct rx_pkt_attrib));

        pattrib = &pcloneframe->u.hdr.attrib;
#ifdef CONFIG_SKB_ALLOCATED
        if (rtw_os_alloc_recvframe(adapter, pcloneframe, pbuf, NULL) == _SUCCESS)
#else
        if (rtw_os_recvframe_duplicate_skb(adapter, pcloneframe, precvframe->u.hdr.pkt) == _SUCCESS)
#endif
        {
#ifdef CONFIG_SKB_ALLOCATED
            recvframe_put(pcloneframe, pattrib->pkt_len);
#endif

#ifdef DBG_SKB_PROCESS
            rtw_dbg_skb_process(adapter, precvframe, pcloneframe);
#endif

            if (pattrib->physt && pphy_status)
                rx_query_phy_status(pcloneframe, pphy_status);

            ret = rtw_recv_entry(pcloneframe);
        } else {
            ret = -1;
            RTW_INFO("%s()-%d: rtw_os_alloc_recvframe() failed!\n", __func__, __LINE__);
        }

    }
    return ret;
}
Esempio n. 2
0
int recvbuf2recvframe(PADAPTER padapter, void *ptr)
{
	u8 *pbuf;
	u8 pkt_cnt = 0;
	u32 pkt_offset;
	s32 transfer_len;
	u8 *pdata, *pphy_status;
	union recv_frame *precvframe = NULL;
	struct rx_pkt_attrib *pattrib = NULL;
	PHAL_DATA_TYPE pHalData;
	struct recv_priv *precvpriv;
	_queue *pfree_recv_queue;
	_pkt *pskb;


	pHalData = GET_HAL_DATA(padapter);
	precvpriv = &padapter->recvpriv;
	pfree_recv_queue = &precvpriv->free_recv_queue;

#ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX
	pskb = NULL;
	transfer_len = (s32)((struct recv_buf*)ptr)->transfer_len;
	pbuf = ((struct recv_buf*)ptr)->pbuf;
#else // !CONFIG_USE_USB_BUFFER_ALLOC_RX
	pskb = (_pkt*)ptr;
	transfer_len = (s32)pskb->len;
	pbuf = pskb->data;
#endif // !CONFIG_USE_USB_BUFFER_ALLOC_RX

#ifdef CONFIG_USB_RX_AGGREGATION
	pkt_cnt = GET_RX_STATUS_DESC_USB_AGG_PKTNUM_8723B(pbuf);
#endif

	do {
		precvframe = rtw_alloc_recvframe(pfree_recv_queue);
		if (precvframe == NULL) {
			DBG_8192C("%s: rtw_alloc_recvframe() failed! RX Drop!\n", __FUNCTION__);
			goto _exit_recvbuf2recvframe;
		}

		if (transfer_len >1500)
			_rtw_init_listhead(&precvframe->u.hdr.list);
		precvframe->u.hdr.precvbuf = NULL;	//can't access the precvbuf for new arch.
		precvframe->u.hdr.len = 0;

		rtl8723b_query_rx_desc_status(precvframe, pbuf);

		pattrib = &precvframe->u.hdr.attrib;

		if ((padapter->registrypriv.mp_mode == 0)
		   && ((pattrib->crc_err) || (pattrib->icv_err))) {
			DBG_8192C("%s: RX Warning! crc_err=%d icv_err=%d, skip!\n",
				__FUNCTION__, pattrib->crc_err, pattrib->icv_err);

			rtw_free_recvframe(precvframe, pfree_recv_queue);
			goto _exit_recvbuf2recvframe;
		}

		pkt_offset = RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->shift_sz + pattrib->pkt_len;
		if ((pattrib->pkt_len <= 0) || (pkt_offset > transfer_len)) {
			DBG_8192C("%s: RX Error! pkt_len=%d pkt_offset=%d transfer_len=%d\n",
				__FUNCTION__, pattrib->pkt_len, pkt_offset, transfer_len);

			rtw_free_recvframe(precvframe, pfree_recv_queue);
			goto _exit_recvbuf2recvframe;
		}

		pdata = pbuf + RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->shift_sz;
		if (rtw_os_alloc_recvframe(padapter, precvframe, pdata, pskb) == _FAIL) {
			DBG_8192C("%s: RX Error! rtw_os_alloc_recvframe FAIL!\n", __FUNCTION__);

			rtw_free_recvframe(precvframe, pfree_recv_queue);
			goto _exit_recvbuf2recvframe;
		}

		recvframe_put(precvframe, pattrib->pkt_len);

		if (pattrib->pkt_rpt_type == NORMAL_RX) {
			if (pattrib->physt)
				pphy_status = pbuf + RXDESC_OFFSET;
			else
				pphy_status = NULL;

#ifdef CONFIG_CONCURRENT_MODE
			if (rtw_buddy_adapter_up(padapter)) {
				if (pre_recv_entry(precvframe, pphy_status) != _SUCCESS) {
					// Return fail except data frame
					//DBG_8192C("%s: RX Error! (concurrent)pre_recv_entry FAIL!\n", __FUNCTION__);
				}
			}
#endif // CONFIG_CONCURRENT_MODE

			if (pphy_status)
				rx_query_phy_status(precvframe, pphy_status);

			if (rtw_recv_entry(precvframe) != _SUCCESS) {
				// Return fail except data frame
				//DBG_8192C("%s: RX Error! rtw_recv_entry FAIL!\n", __FUNCTION__);
			}
		}
		else {
#ifdef CONFIG_C2H_PACKET_EN
			if (pattrib->pkt_rpt_type == C2H_PACKET) {
				rtl8723b_c2h_packet_handler(padapter, precvframe->u.hdr.rx_data, pattrib->pkt_len);
			}
			else {
				DBG_8192C("%s: [WARNNING] RX type(%d) not be handled!\n",
					__FUNCTION__, pattrib->pkt_rpt_type);
			}
#endif // CONFIG_C2H_PACKET_EN
			rtw_free_recvframe(precvframe, pfree_recv_queue);
		}

#ifdef CONFIG_USB_RX_AGGREGATION
		// jaguar 8-byte alignment
		pkt_offset = (u16)_RND8(pkt_offset);
		pkt_cnt--;
		pbuf += pkt_offset;
#endif
		transfer_len -= pkt_offset;
		precvframe = NULL;
	} while (transfer_len > 0);

_exit_recvbuf2recvframe:

	return _SUCCESS;	
}
Esempio n. 3
0
static s32 pre_recv_entry(union recv_frame *precvframe, u8 *pphy_status)
{	
	s32 ret=_SUCCESS;
#ifdef CONFIG_CONCURRENT_MODE	
	u8 *secondary_myid, *paddr1;
	union recv_frame	*precvframe_if2 = NULL;
	_adapter *primary_padapter = precvframe->u.hdr.adapter;
	_adapter *secondary_padapter = primary_padapter->pbuddy_adapter;
	struct recv_priv *precvpriv = &primary_padapter->recvpriv;
	_queue *pfree_recv_queue = &precvpriv->free_recv_queue;
	u8	*pbuf = precvframe->u.hdr.rx_data;
	
	if(!secondary_padapter)
		return ret;
	
	paddr1 = GetAddr1Ptr(pbuf);

	if(IS_MCAST(paddr1) == _FALSE)//unicast packets
	{
		secondary_myid = adapter_mac_addr(secondary_padapter);

		if(_rtw_memcmp(paddr1, secondary_myid, ETH_ALEN))
		{			
			//change to secondary interface
			precvframe->u.hdr.adapter = secondary_padapter;
		}	

		//ret = recv_entry(precvframe);

	}
	else // Handle BC/MC Packets	
	{
		
		u8 clone = _TRUE;
#if 0		
		u8 type, subtype, *paddr2, *paddr3;
	
		type =  GetFrameType(pbuf);
		subtype = GetFrameSubType(pbuf); //bit(7)~bit(2)
		
		switch (type)
		{
			case WIFI_MGT_TYPE: //Handle BC/MC mgnt Packets
				if(subtype == WIFI_BEACON)
				{
					paddr3 = GetAddr3Ptr(precvframe->u.hdr.rx_data);
				
					if (check_fwstate(&secondary_padapter->mlmepriv, _FW_LINKED) &&
						_rtw_memcmp(paddr3, get_bssid(&secondary_padapter->mlmepriv), ETH_ALEN))
					{
						//change to secondary interface
						precvframe->u.hdr.adapter = secondary_padapter;
						clone = _FALSE;
					}

					if(check_fwstate(&primary_padapter->mlmepriv, _FW_LINKED) &&
						_rtw_memcmp(paddr3, get_bssid(&primary_padapter->mlmepriv), ETH_ALEN))
					{
						if(clone==_FALSE)
						{
							clone = _TRUE;									
						}	
						else
						{
							clone = _FALSE;
						}

						precvframe->u.hdr.adapter = primary_padapter;	
					}

					if(check_fwstate(&primary_padapter->mlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING) ||
						check_fwstate(&secondary_padapter->mlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING))
					{
						clone = _TRUE;
						precvframe->u.hdr.adapter = primary_padapter;	
					}
				
				}
				else if(subtype == WIFI_PROBEREQ)
				{
					//probe req frame is only for interface2
					//change to secondary interface
					precvframe->u.hdr.adapter = secondary_padapter;
					clone = _FALSE;
				}			
				break;
			case WIFI_CTRL_TYPE: // Handle BC/MC ctrl Packets
			
				break;
			case WIFI_DATA_TYPE: //Handle BC/MC data Packets
					//Notes: AP MODE never rx BC/MC data packets
			
				paddr2 = GetAddr2Ptr(precvframe->u.hdr.rx_data);

				if(_rtw_memcmp(paddr2, get_bssid(&secondary_padapter->mlmepriv), ETH_ALEN))
				{
					//change to secondary interface
					precvframe->u.hdr.adapter = secondary_padapter;
					clone = _FALSE;
				}

				break;
			default:
			
				break;			
		}
#endif

		if(_TRUE == clone)
		{
			//clone/copy to if2		
			struct rx_pkt_attrib *pattrib = NULL;
		
			precvframe_if2 = rtw_alloc_recvframe(pfree_recv_queue);
			if(precvframe_if2)
			{
				precvframe_if2->u.hdr.adapter = secondary_padapter;
		
				_rtw_init_listhead(&precvframe_if2->u.hdr.list);	
				precvframe_if2->u.hdr.precvbuf = NULL;	//can't access the precvbuf for new arch.
				precvframe_if2->u.hdr.len=0;

				_rtw_memcpy(&precvframe_if2->u.hdr.attrib, &precvframe->u.hdr.attrib, sizeof(struct rx_pkt_attrib));

				pattrib = &precvframe_if2->u.hdr.attrib;

				if(rtw_os_alloc_recvframe(secondary_padapter, precvframe_if2, pbuf, NULL) == _SUCCESS)				
				{						
					recvframe_put(precvframe_if2, pattrib->pkt_len);
					//recvframe_pull(precvframe_if2, drvinfo_sz + RXDESC_SIZE);

					if (pattrib->physt && pphy_status)
						rx_query_phy_status(precvframe_if2, pphy_status);
	
					ret = rtw_recv_entry(precvframe_if2);				
				}	
				else
				{
					rtw_free_recvframe(precvframe_if2, pfree_recv_queue);
					DBG_8192C("%s()-%d: alloc_skb() failed!\n", __FUNCTION__, __LINE__);	
				}

			}
			
		}
		
	}
	//if (precvframe->u.hdr.attrib.physt)
	//	rx_query_phy_status(precvframe, pphy_status);

	//ret = rtw_recv_entry(precvframe);

#endif

	return ret;

}
static void rtl8723as_recv_tasklet(void *priv)
{
	PADAPTER				padapter;
	PHAL_DATA_TYPE			pHalData;
	struct recv_priv		*precvpriv;
	struct recv_buf			*precvbuf;
	union recv_frame		*precvframe;
	struct recv_frame_hdr	*phdr;
	struct rx_pkt_attrib	*pattrib;
	u8			*ptr;
	_pkt		*ppkt;
	u32			pkt_offset;
	_irqL		irql;


	padapter = (PADAPTER)priv;
	pHalData = GET_HAL_DATA(padapter);
	precvpriv = &padapter->recvpriv;

	do {
		precvbuf = rtw_dequeue_recvbuf(&precvpriv->recv_buf_pending_queue);
		if (NULL == precvbuf) break;

		ptr = precvbuf->pdata;

		while (ptr < precvbuf->ptail)
		{
			precvframe = rtw_alloc_recvframe(&precvpriv->free_recv_queue);
			if (precvframe == NULL) {
				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("rtl8723as_recv_tasklet: no enough recv frame!\n"));
				rtw_enqueue_recvbuf_to_head(precvbuf, &precvpriv->recv_buf_pending_queue);

				// The case of can't allocte recvframe should be temporary,
				// schedule again and hope recvframe is available next time.
#ifdef PLATFORM_LINUX
				tasklet_schedule(&precvpriv->recv_tasklet);
#endif
				return;
			}

			phdr = &precvframe->u.hdr;
			pattrib = &phdr->attrib;

			update_recvframe_attrib(precvframe, (struct recv_stat*)ptr);

			// fix Hardware RX data error, drop whole recv_buffer
			if ((!(pHalData->ReceiveConfig & RCR_ACRC32)) && pattrib->crc_err)
			{
				DBG_8192C("%s()-%d: RX Warning! rx CRC ERROR !!\n", __FUNCTION__, __LINE__);
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				break;
			}

			pkt_offset = RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->pkt_len;
#if 0 // reduce check to speed up
			if ((ptr + pkt_offset) > precvbuf->ptail) {
				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
						("%s: next pkt len(%p,%d) exceed ptail(%p)!\n",
						__FUNCTION__, ptr, pkt_offset, precvbuf->ptail));
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				break;
			}
#endif

			if ((pattrib->crc_err) || (pattrib->icv_err))
			{
				DBG_8192C("%s: crc_err=%d icv_err=%d, skip!\n", __FUNCTION__, pattrib->crc_err, pattrib->icv_err);
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
			}
			else
			{
				ppkt = skb_clone(precvbuf->pskb, GFP_ATOMIC);
				if (ppkt == NULL)
				{
					RT_TRACE(_module_rtl871x_recv_c_, _drv_crit_, ("rtl8723as_recv_tasklet: no enough memory to allocate SKB!\n"));
					rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
					rtw_enqueue_recvbuf_to_head(precvbuf, &precvpriv->recv_buf_pending_queue);

					// The case of can't allocte skb is serious and may never be recovered,
					// once bDriverStopped is enable, this task should be stopped.
					if (padapter->bDriverStopped == _FALSE) {
#ifdef PLATFORM_LINUX
						tasklet_schedule(&precvpriv->recv_tasklet);
#endif
					}

					return;
				}

				phdr->pkt = ppkt;
				phdr->len = 0;
				phdr->rx_head = precvbuf->phead;
				phdr->rx_data = phdr->rx_tail = precvbuf->pdata;
				phdr->rx_end = precvbuf->pend;
				recvframe_put(precvframe, pkt_offset);
				recvframe_pull(precvframe, RXDESC_SIZE + pattrib->drvinfo_sz);
				if (pHalData->ReceiveConfig & RCR_APPFCS)
					recvframe_pull_tail(precvframe, IEEE80211_FCS_LEN);

				// move to drv info position
				ptr += RXDESC_SIZE;

				// update drv info
				if (pHalData->ReceiveConfig & RCR_APP_BA_SSN) {
//					rtl8723s_update_bassn(padapter, pdrvinfo);
					ptr += 4;
				}

#ifdef CONFIG_CONCURRENT_MODE
				if(rtw_buddy_adapter_up(padapter))
				{
					if(pre_recv_entry(precvframe, precvbuf, (struct phy_stat*)ptr) != _SUCCESS)
					{
						RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,
							("recvbuf2recvframe: recv_entry(precvframe) != _SUCCESS\n"));
					}
				}
				else
#endif
				{
					if (pattrib->physt)
						update_recvframe_phyinfo(precvframe, (struct phy_stat*)ptr);

					if (rtw_recv_entry(precvframe) != _SUCCESS)
					{
						RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("rtl8723as_recv_tasklet: rtw_recv_entry(precvframe) != _SUCCESS\n"));
					}
				}
			}

			// Page size of receive package is 128 bytes alignment => DMA agg
			// refer to _InitTransferPageSize()
			pkt_offset = _RND128(pkt_offset);
			precvbuf->pdata += pkt_offset;
			ptr = precvbuf->pdata;
		}

		dev_kfree_skb_any(precvbuf->pskb);
		precvbuf->pskb = NULL;
		rtw_enqueue_recvbuf(precvbuf, &precvpriv->free_recv_buf_queue);
	} while (1);
}
static void rtl8723as_recv_tasklet(void *priv)
{
	PADAPTER			padapter;
	PHAL_DATA_TYPE		pHalData;
	struct recv_priv		*precvpriv;
	struct recv_buf		*precvbuf;
	union recv_frame		*precvframe;
	struct recv_frame_hdr	*phdr;
	struct rx_pkt_attrib	*pattrib;
	_irqL	irql;
	u8		*ptr;
	u32		pkt_len, pkt_offset, skb_len, alloc_sz;
	_pkt		*pkt_copy = NULL;
	u8		shift_sz = 0, rx_report_sz = 0;


	padapter = (PADAPTER)priv;
	pHalData = GET_HAL_DATA(padapter);
	precvpriv = &padapter->recvpriv;

	do {
		precvbuf = rtw_dequeue_recvbuf(&precvpriv->recv_buf_pending_queue);
		if (NULL == precvbuf) break;

		ptr = precvbuf->pdata;

		while (ptr < precvbuf->ptail)
		{
			precvframe = rtw_alloc_recvframe(&precvpriv->free_recv_queue);
			if (precvframe == NULL) {
				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("%s: no enough recv frame!\n",__FUNCTION__));
				rtw_enqueue_recvbuf_to_head(precvbuf, &precvpriv->recv_buf_pending_queue);

				// The case of can't allocte recvframe should be temporary,
				// schedule again and hope recvframe is available next time.
#ifdef PLATFORM_LINUX
				tasklet_schedule(&precvpriv->recv_tasklet);
#endif
				return;
			}

			//rx desc parsing
			update_recvframe_attrib(precvframe, (struct recv_stat*)ptr);

			pattrib = &precvframe->u.hdr.attrib;

			// fix Hardware RX data error, drop whole recv_buffer
			if ((!(pHalData->ReceiveConfig & RCR_ACRC32)) && pattrib->crc_err)
			{
				#if !(MP_DRIVER==1)
				DBG_8192C("%s()-%d: RX Warning! rx CRC ERROR !!\n", __FUNCTION__, __LINE__);
				#endif
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				break;
			}

			if (pHalData->ReceiveConfig & RCR_APP_BA_SSN)
				rx_report_sz = RXDESC_SIZE + 4 + pattrib->drvinfo_sz;
			else
				rx_report_sz = RXDESC_SIZE + pattrib->drvinfo_sz;

			pkt_offset = rx_report_sz + pattrib->pkt_len;

			if ((ptr + pkt_offset) > precvbuf->ptail) {
				DBG_8192C("%s()-%d: : next pkt len(%p,%d) exceed ptail(%p)!\n", __FUNCTION__, __LINE__, ptr, pkt_offset, precvbuf->ptail);
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				break;
			}

			if ((pattrib->crc_err) || (pattrib->icv_err))
			{
				DBG_8192C("%s: crc_err=%d icv_err=%d, skip!\n", __FUNCTION__, pattrib->crc_err, pattrib->icv_err);
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
			}
			else
			{
				//	Modified by Albert 20101213
				//	For 8 bytes IP header alignment.
				if (pattrib->qos)	//	Qos data, wireless lan header length is 26
				{
					shift_sz = 6;
				}
				else
				{
					shift_sz = 0;
				}

				skb_len = pattrib->pkt_len;

				// for first fragment packet, driver need allocate 1536+drvinfo_sz+RXDESC_SIZE to defrag packet.
				// modify alloc_sz for recvive crc error packet by thomas 2011-06-02
				if((pattrib->mfrag == 1)&&(pattrib->frag_num == 0)){
					//alloc_sz = 1664;	//1664 is 128 alignment.
					if(skb_len <= 1650)
						alloc_sz = 1664;
					else
						alloc_sz = skb_len + 14;
				}
				else {
					alloc_sz = skb_len;
					//	6 is for IP header 8 bytes alignment in QoS packet case.
					//	8 is for skb->data 4 bytes alignment.
					alloc_sz += 14;
				}

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)) // http://www.mail-archive.com/[email protected]/msg17214.html
				pkt_copy = dev_alloc_skb(alloc_sz);
#else
				pkt_copy = netdev_alloc_skb(padapter->pnetdev, alloc_sz);
#endif
				if(pkt_copy)
				{
					pkt_copy->dev = padapter->pnetdev;
					precvframe->u.hdr.pkt = pkt_copy;
					skb_reserve( pkt_copy, 8 - ((SIZE_PTR)( pkt_copy->data ) & 7 ));//force pkt_copy->data at 8-byte alignment address
					skb_reserve( pkt_copy, shift_sz );//force ip_hdr at 8-byte alignment address according to shift_sz.
					_rtw_memcpy(pkt_copy->data, (ptr + rx_report_sz), skb_len);
					precvframe->u.hdr.rx_head = pkt_copy->head;
					precvframe->u.hdr.rx_data = precvframe->u.hdr.rx_tail = pkt_copy->data;
					precvframe->u.hdr.rx_end = skb_end_pointer(pkt_copy);
				}
				else
				{
					if((pattrib->mfrag == 1)&&(pattrib->frag_num == 0))
					{
						DBG_8192C("rtl8723as_recv_tasklet: alloc_skb fail , drop frag frame \n");
						rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
						break;
					}

					precvframe->u.hdr.pkt = skb_clone(precvbuf->pskb, GFP_ATOMIC);
					if(precvframe->u.hdr.pkt)
					{
						_pkt	*pkt_clone = precvframe->u.hdr.pkt;

						pkt_clone->data = ptr + rx_report_sz;
						skb_reset_tail_pointer(pkt_clone);
						precvframe->u.hdr.rx_head = precvframe->u.hdr.rx_data = precvframe->u.hdr.rx_tail
							= pkt_clone->data;
						precvframe->u.hdr.rx_end =  pkt_clone->data + skb_len;
					}
					else
					{
						DBG_8192C("rtl8723as_recv_tasklet: skb_clone fail\n");
						rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
						break;
					}
				}

				recvframe_put(precvframe, skb_len);
				//recvframe_pull(precvframe, drvinfo_sz + RXDESC_SIZE);

				if (pHalData->ReceiveConfig & RCR_APPFCS)
					recvframe_pull_tail(precvframe, IEEE80211_FCS_LEN);

				// move to drv info position
				ptr += RXDESC_SIZE;

				// update drv info
				if (pHalData->ReceiveConfig & RCR_APP_BA_SSN) {
					//rtl8723s_update_bassn(padapter, pdrvinfo);
					ptr += 4;
				}

#ifdef CONFIG_CONCURRENT_MODE
				if(rtw_buddy_adapter_up(padapter))
				{
					if(pre_recv_entry(precvframe, precvbuf, (struct phy_stat*)ptr) != _SUCCESS)
					{
						RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,
							("recvbuf2recvframe: recv_entry(precvframe) != _SUCCESS\n"));
					}
				}
				else
#endif
				{
					if (pattrib->physt)
						update_recvframe_phyinfo(precvframe, (struct phy_stat*)ptr);

					if (rtw_recv_entry(precvframe) != _SUCCESS)
					{
						RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("%s: rtw_recv_entry(precvframe) != _SUCCESS\n",__FUNCTION__));
					}
				}
			}

			// Page size of receive package is 128 bytes alignment =>DMA AGG
			// refer to _InitTransferPageSize()
			pkt_offset = _RND128(pkt_offset);
			precvbuf->pdata += pkt_offset;
			ptr = precvbuf->pdata;
			precvframe = NULL;
			pkt_copy = NULL;
		}

		rtw_enqueue_recvbuf(precvbuf, &precvpriv->free_recv_buf_queue);
	} while (1);

}
Esempio n. 6
0
static int recvbuf2recvframe(struct rtl_priv *rtlpriv, struct sk_buff *pskb)
{
	uint8_t	*pbuf;
	uint8_t	pkt_cnt = 0;
	uint32_t	pkt_offset;
	int32_t	transfer_len;
	uint8_t				*pphy_status = NULL;
	struct recv_frame	*precvframe = NULL;
	struct rx_pkt_attrib	*pattrib = NULL;
	 struct _rtw_hal	*pHalData = GET_HAL_DATA(rtlpriv);
	struct recv_priv	*precvpriv = &rtlpriv->recvpriv;
	struct __queue			*pfree_recv_queue = &precvpriv->free_recv_queue;

	transfer_len = (int32_t)pskb->len;
	pbuf = pskb->data;

#ifdef CONFIG_USB_RX_AGGREGATION
	pkt_cnt = GET_RX_STATUS_DESC_USB_AGG_PKTNUM(pbuf);
#endif

	do {
		precvframe = rtw_alloc_recvframe(pfree_recv_queue);
		if (precvframe == NULL) {
			DBG_8192C("%s()-%d: rtw_alloc_recvframe() failed! RX Drop!\n", __FUNCTION__, __LINE__);
			goto _exit_recvbuf2recvframe;
		}

		INIT_LIST_HEAD(&precvframe->list);
		precvframe->precvbuf = NULL;	/* can't access the precvbuf for new arch. */
		precvframe->len = 0;

		rtl8812_query_rx_desc_status(rtlpriv, &precvframe->attrib, precvframe, pbuf);

		pattrib = &precvframe->attrib;

		if ((pattrib->crc_err) || (pattrib->icv_err)) {
			DBG_8192C("%s: RX Warning! crc_err=%d icv_err=%d, skip!\n", __FUNCTION__, pattrib->crc_err, pattrib->icv_err);

			rtw_free_recvframe(precvframe, pfree_recv_queue);
			goto _exit_recvbuf2recvframe;
		}

		pkt_offset = RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->shift_sz + pattrib->pkt_len;

		if ((pattrib->pkt_len <= 0) || (pkt_offset > transfer_len)) {
			DBG_8192C("%s()-%d: RX Warning!,pkt_len<=0 or pkt_offset> transfer_len \n", __FUNCTION__, __LINE__);
			rtw_free_recvframe(precvframe, pfree_recv_queue);
			goto _exit_recvbuf2recvframe;
		}

		if (rtw_os_alloc_recvframe(rtlpriv, precvframe,
		    (pbuf+pattrib->shift_sz + pattrib->drvinfo_sz + RXDESC_SIZE),
		     pskb) == _FAIL) {
			rtw_free_recvframe(precvframe, pfree_recv_queue);

			goto _exit_recvbuf2recvframe;
		}

		recvframe_put(precvframe, pattrib->pkt_len);
		/* recvframe_pull(precvframe, drvinfo_sz + RXDESC_SIZE); */

		if (pattrib->pkt_rpt_type == NORMAL_RX) {
			/* Normal rx packet */
			if (pattrib->physt)
				pphy_status = (pbuf + RXDESC_OFFSET);

			if (pattrib->physt && pphy_status)
				rtl8812_query_rx_phy_status(precvframe, pphy_status);

			if (rtw_recv_entry(precvframe) != _SUCCESS) {
				;
			}

		} else {
			/* pkt_rpt_type == TX_REPORT1-CCX, TX_REPORT2-TX RTP,HIS_REPORT-USB HISR RTP */

			if (pattrib->pkt_rpt_type == C2H_PACKET) {
				/* DBG_8192C("rx C2H_PACKET \n"); */
				/* C2HPacketHandler_8812A(rtlpriv,precvframe->u.hdr.rx_data,pattrib->pkt_len); */
			}
			/* enqueue recvframe to txrtp queue */
			else if (pattrib->pkt_rpt_type == TX_REPORT1) {
				DBG_8192C("rx CCX \n");
			}
			else if (pattrib->pkt_rpt_type == TX_REPORT2) {
				/* DBG_8192C("rx TX RPT \n"); */
			}
			/*else if(pattrib->pkt_rpt_type == HIS_REPORT)
			{
				//DBG_8192C("%s , rx USB HISR \n",__FUNCTION__);
			}*/
			rtw_free_recvframe(precvframe, pfree_recv_queue);

		}

#ifdef CONFIG_USB_RX_AGGREGATION
		/*  jaguar 8-byte alignment */
		pkt_offset = (u16)_RND8(pkt_offset);
		pkt_cnt--;
		pbuf += pkt_offset;
#endif
		transfer_len -= pkt_offset;
		precvframe = NULL;

	} while (transfer_len > 0);

_exit_recvbuf2recvframe:

	return _SUCCESS;
}
static void rtl8723bs_recv_tasklet(void *priv)
{
	PADAPTER				padapter;
	PHAL_DATA_TYPE			pHalData;
	struct recv_priv		*precvpriv;
	struct recv_buf 		*precvbuf;
	union recv_frame		*precvframe;
	struct recv_frame_hdr	*phdr;
	struct rx_pkt_attrib	*pattrib;
	u8			*ptr;
	_pkt		*ppkt;
	u32 		pkt_offset;
	_irqL		irql;


	padapter = (PADAPTER)priv;
	pHalData = GET_HAL_DATA(padapter);
	precvpriv = &padapter->recvpriv;

	do {
		precvbuf = rtw_dequeue_recvbuf(&precvpriv->recv_buf_pending_queue);
		if (NULL == precvbuf) break;

		ptr = precvbuf->pdata;

		while (ptr < precvbuf->ptail)
		{
			precvframe = rtw_alloc_recvframe(&precvpriv->free_recv_queue);
			if (precvframe == NULL) {
				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("rtl8723bs_recv_tasklet: no enough recv frame!\n"));
				rtw_enqueue_recvbuf_to_head(precvbuf, &precvpriv->recv_buf_pending_queue);

				// The case of can't allocte recvframe should be temporary,
				// schedule again and hope recvframe is available next time.
#ifdef PLATFORM_LINUX
				tasklet_schedule(&precvpriv->recv_tasklet);
#endif
				return;
			}

			phdr = &precvframe->u.hdr;
			pattrib = &phdr->attrib;

			rtl8723b_query_rx_desc_status(precvframe, ptr);

#if 0
			{
				int i, len = 64;
				u8 *pptr = ptr;

				if((*(pptr + RXDESC_SIZE + pattrib->drvinfo_sz) != 0x80) && (*(pptr + RXDESC_SIZE + pattrib->drvinfo_sz) != 0x40))
				{
					DBG_871X("##############RxDESC############### \n");
					for(i=0; i<32;i=i+16)
						DBG_871X("%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:\n", *(pptr+i),
						*(pptr+i+1), *(pptr+i+2) ,*(pptr+i+3) ,*(pptr+i+4),*(pptr+i+5), *(pptr+i+6), *(pptr+i+7), *(pptr+i+8), *(pptr+i+9), *(pptr+i+10),
						 *(pptr+i+11), *(pptr+i+12), *(pptr+i+13), *(pptr+i+14), *(pptr+i+15));
					
					if(pattrib->pkt_len < 100)
						len = pattrib->pkt_len;
					pptr = ptr + RXDESC_SIZE + pattrib->drvinfo_sz;
					DBG_871X("##############Len=%d############### \n", pattrib->pkt_len);
					for(i=0; i<len;i=i+16)
						DBG_871X("%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X:\n", *(pptr+i),
						*(pptr+i+1), *(pptr+i+2) ,*(pptr+i+3) ,*(pptr+i+4),*(pptr+i+5), *(pptr+i+6), *(pptr+i+7), *(pptr+i+8), *(pptr+i+9), *(pptr+i+10),
						 *(pptr+i+11), *(pptr+i+12), *(pptr+i+13), *(pptr+i+14), *(pptr+i+15));
					DBG_871X("############################# \n");
				}
			}
#endif

			// fix Hardware RX data error, drop whole recv_buffer
			if ((!(pHalData->ReceiveConfig & RCR_ACRC32)) && pattrib->crc_err)
			{
				DBG_8192C("%s()-%d: RX Warning! rx CRC ERROR !!\n", __FUNCTION__, __LINE__);
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				break;
			}

			pkt_offset = RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->pkt_len;
#if 0 // reduce check to speed up
			if ((ptr + pkt_offset) > precvbuf->ptail) {
				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
						("%s: next pkt len(%p,%d) exceed ptail(%p)!\n",
						__FUNCTION__, ptr, pkt_offset, precvbuf->ptail));
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				break;
			}
#endif

			if ((pattrib->crc_err) || (pattrib->icv_err))
			{
#ifdef CONFIG_MP_INCLUDED
				if (padapter->registrypriv.mp_mode == 1)
				{
					if ((check_fwstate(&padapter->mlmepriv, WIFI_MP_STATE) == _TRUE))//&&(padapter->mppriv.check_mp_pkt == 0))
					{
						if (pattrib->crc_err == 1)
							padapter->mppriv.rx_crcerrpktcount++;
					}
				}
				else
#endif
				{
					DBG_8192C("%s: crc_err=%d icv_err=%d, skip!\n", __FUNCTION__, pattrib->crc_err, pattrib->icv_err);
				}
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
			}
			else
			{
				ppkt = rtw_skb_clone(precvbuf->pskb);
				if (ppkt == NULL) {
					DBG_8192C("%s: no enough memory to allocate SKB!\n", __FUNCTION__);
					rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
					rtw_enqueue_recvbuf_to_head(precvbuf, &precvpriv->recv_buf_pending_queue);

					// The case of can't allocte skb is serious and may never be recovered,
					// once bDriverStopped is enable, this task should be stopped.
					if (padapter->bDriverStopped == _FALSE) {
#ifdef PLATFORM_LINUX
						tasklet_schedule(&precvpriv->recv_tasklet);
#endif
					}

					return;
				}

				phdr->pkt = ppkt;
				phdr->len = 0;
				phdr->rx_head = precvbuf->phead;
				phdr->rx_data = phdr->rx_tail = precvbuf->pdata;
				phdr->rx_end = precvbuf->pend;
				recvframe_put(precvframe, pkt_offset);
				recvframe_pull(precvframe, RXDESC_SIZE + pattrib->drvinfo_sz);
				if (pHalData->ReceiveConfig & RCR_APPFCS)
					recvframe_pull_tail(precvframe, IEEE80211_FCS_LEN);

				// move to drv info position
				ptr += RXDESC_SIZE;

				// update drv info
				if (pHalData->ReceiveConfig & RCR_APP_BA_SSN) {
					//rtl8723s_update_bassn(padapter, pdrvinfo);
					ptr += 4;
				}

				if (pattrib->pkt_rpt_type == NORMAL_RX) {
#ifdef CONFIG_CONCURRENT_MODE
					if (rtw_buddy_adapter_up(padapter))
					{
						if (pre_recv_entry(precvframe, precvbuf, ptr) != _SUCCESS) {
							RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,
								("recvbuf2recvframe: recv_entry(precvframe) != _SUCCESS\n"));
						}
					}
					else
#endif
					{
						if (pattrib->physt)
							rx_query_phy_status(precvframe, ptr);

						if (rtw_recv_entry(precvframe) != _SUCCESS)
						{
							RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("rtl8723bs_recv_tasklet: rtw_recv_entry(precvframe) != _SUCCESS\n"));
						}
					}
				}
				else {
#ifdef CONFIG_C2H_PACKET_EN
					if (pattrib->pkt_rpt_type == C2H_PACKET) {
						rtl8723b_c2h_packet_handler(padapter, precvframe->u.hdr.rx_data, pattrib->pkt_len);
					}
					else {
						DBG_8192C("%s: [WARNNING] RX type(%d) not be handled!\n",
							__FUNCTION__, pattrib->pkt_rpt_type);
					}
#endif
					rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				}
			}

			pkt_offset = _RND8(pkt_offset);
			precvbuf->pdata += pkt_offset;
			ptr = precvbuf->pdata;
		}

		rtw_skb_free(precvbuf->pskb);
		precvbuf->pskb = NULL;
		rtw_enqueue_recvbuf(precvbuf, &precvpriv->free_recv_buf_queue);
	} while (1);
}
static void rtl8723bs_recv_tasklet(void *priv)
{
	PADAPTER			padapter;
	PHAL_DATA_TYPE		pHalData;
	struct recv_priv		*precvpriv;
	struct recv_buf 	*precvbuf;
	union recv_frame		*precvframe;
	struct recv_frame_hdr	*phdr;
	struct rx_pkt_attrib	*pattrib;
	_irqL	irql;
	u8		*ptr;
	u32 	pkt_len, pkt_offset, skb_len, alloc_sz;
	_pkt		*pkt_copy = NULL;
	u8		shift_sz = 0, rx_report_sz = 0;


	padapter = (PADAPTER)priv;
	pHalData = GET_HAL_DATA(padapter);
	precvpriv = &padapter->recvpriv;

	do {
		precvbuf = rtw_dequeue_recvbuf(&precvpriv->recv_buf_pending_queue);
		if (NULL == precvbuf) break;

		ptr = precvbuf->pdata;

		while (ptr < precvbuf->ptail)
		{
			precvframe = rtw_alloc_recvframe(&precvpriv->free_recv_queue);
			if (precvframe == NULL)
			{
				DBG_8192C("%s: no enough recv frame!\n", __FUNCTION__);
				rtw_enqueue_recvbuf_to_head(precvbuf, &precvpriv->recv_buf_pending_queue);

				// The case of can't allocte recvframe should be temporary,
				// schedule again and hope recvframe is available next time.
#ifdef PLATFORM_LINUX
				tasklet_schedule(&precvpriv->recv_tasklet);
#endif
				return;
			}

			//rx desc parsing
			rtl8723b_query_rx_desc_status(precvframe, ptr);

			pattrib = &precvframe->u.hdr.attrib;

			// fix Hardware RX data error, drop whole recv_buffer
			if ((!(pHalData->ReceiveConfig & RCR_ACRC32)) && pattrib->crc_err)
			{
#if !(MP_DRIVER==1)
				DBG_8192C("%s()-%d: RX Warning! rx CRC ERROR !!\n", __FUNCTION__, __LINE__);
#endif
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				break;
			}

			rx_report_sz = RXDESC_SIZE + pattrib->drvinfo_sz;
			pkt_offset = rx_report_sz + pattrib->shift_sz + pattrib->pkt_len;

			if ((ptr + pkt_offset) > precvbuf->ptail) {
				DBG_8192C("%s()-%d: : next pkt len(%p,%d) exceed ptail(%p)!\n", __FUNCTION__, __LINE__, ptr, pkt_offset, precvbuf->ptail);
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				break;
			}

			if ((pattrib->crc_err) || (pattrib->icv_err))
			{
#ifdef CONFIG_MP_INCLUDED
				if (padapter->registrypriv.mp_mode == 1)
				{
					if ((check_fwstate(&padapter->mlmepriv, WIFI_MP_STATE) == _TRUE))//&&(padapter->mppriv.check_mp_pkt == 0))
					{
						if (pattrib->crc_err == 1)
							padapter->mppriv.rx_crcerrpktcount++;
					}
				}
				else
#endif
				{
					DBG_8192C("%s: crc_err=%d icv_err=%d, skip!\n", __FUNCTION__, pattrib->crc_err, pattrib->icv_err);
				}
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
			}
			else
			{
				//	Modified by Albert 20101213
				//	For 8 bytes IP header alignment.
				if (pattrib->qos)	//	Qos data, wireless lan header length is 26
				{
					shift_sz = 6;
				}
				else
				{
					shift_sz = 0;
				}

				skb_len = pattrib->pkt_len;

				// for first fragment packet, driver need allocate 1536+drvinfo_sz+RXDESC_SIZE to defrag packet.
				// modify alloc_sz for recvive crc error packet by thomas 2011-06-02
				if((pattrib->mfrag == 1)&&(pattrib->frag_num == 0)){
					//alloc_sz = 1664;	//1664 is 128 alignment.
					if(skb_len <= 1650)
						alloc_sz = 1664;
					else
						alloc_sz = skb_len + 14;
				}
				else {
					alloc_sz = skb_len;
					//	6 is for IP header 8 bytes alignment in QoS packet case.
					//	8 is for skb->data 4 bytes alignment.
					alloc_sz += 14;
				}

				pkt_copy = rtw_skb_alloc(alloc_sz);

				if (pkt_copy)
				{
					pkt_copy->dev = padapter->pnetdev;
					precvframe->u.hdr.pkt = pkt_copy;
					skb_reserve( pkt_copy, 8 - ((SIZE_PTR)( pkt_copy->data ) & 7 ));//force pkt_copy->data at 8-byte alignment address
					skb_reserve( pkt_copy, shift_sz );//force ip_hdr at 8-byte alignment address according to shift_sz.
					_rtw_memcpy(pkt_copy->data, (ptr + rx_report_sz + pattrib->shift_sz), skb_len);
					precvframe->u.hdr.rx_head = pkt_copy->head;
					precvframe->u.hdr.rx_data = precvframe->u.hdr.rx_tail = pkt_copy->data;
					precvframe->u.hdr.rx_end = skb_end_pointer(pkt_copy);
				}
				else
				{
					if((pattrib->mfrag == 1)&&(pattrib->frag_num == 0))
					{
						DBG_8192C("%s: alloc_skb fail, drop frag frame\n", __FUNCTION__);
						rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
						break;
					}

					precvframe->u.hdr.pkt = rtw_skb_clone(precvbuf->pskb);
					if(precvframe->u.hdr.pkt)
					{
						_pkt	*pkt_clone = precvframe->u.hdr.pkt;

						pkt_clone->data = ptr + rx_report_sz + pattrib->shift_sz;
						skb_reset_tail_pointer(pkt_clone);
						precvframe->u.hdr.rx_head = precvframe->u.hdr.rx_data = precvframe->u.hdr.rx_tail
							= pkt_clone->data;
						precvframe->u.hdr.rx_end =	pkt_clone->data + skb_len;
					}
					else
					{
						DBG_8192C("%s: rtw_skb_clone fail\n", __FUNCTION__);
						rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
						break;
					}
				}

				recvframe_put(precvframe, skb_len);
				//recvframe_pull(precvframe, drvinfo_sz + RXDESC_SIZE);

				if (pHalData->ReceiveConfig & RCR_APPFCS)
					recvframe_pull_tail(precvframe, IEEE80211_FCS_LEN);

				// move to drv info position
				ptr += RXDESC_SIZE;

				// update drv info
				if (pHalData->ReceiveConfig & RCR_APP_BA_SSN) {
					//rtl8723s_update_bassn(padapter, pdrvinfo);
					ptr += 4;
				}

				if (pattrib->pkt_rpt_type == NORMAL_RX) {
					// skip the rx packet with abnormal length
					if (pattrib->pkt_len < 14 || pattrib->pkt_len > 8192) {	
						DBG_8192C("skip abnormal rx packet(%d)\n", pattrib->pkt_len);
						rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
						break;
					}

#ifdef CONFIG_CONCURRENT_MODE
					if (rtw_buddy_adapter_up(padapter))
					{
						if (pre_recv_entry(precvframe, precvbuf, ptr) != _SUCCESS) {
							RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,
								("recvbuf2recvframe: recv_entry(precvframe) != _SUCCESS\n"));
						}
					}
					else
#endif
					{
						if (pattrib->physt)
							rx_query_phy_status(precvframe, ptr);

						if (rtw_recv_entry(precvframe) != _SUCCESS) {
							RT_TRACE(_module_rtl871x_recv_c_, _drv_dump_, ("%s: rtw_recv_entry(precvframe) != _SUCCESS\n",__FUNCTION__));
						}
					}
				}
				else {
#ifdef CONFIG_C2H_PACKET_EN
					if (pattrib->pkt_rpt_type == C2H_PACKET) {
						rtl8723b_c2h_packet_handler(padapter, precvframe->u.hdr.rx_data, pattrib->pkt_len);
					}
					else {
						DBG_8192C("%s: [WARNNING] RX type(%d) not be handled!\n",
							__FUNCTION__, pattrib->pkt_rpt_type);
					}
#endif
					rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				}
			}

			pkt_offset = _RND8(pkt_offset);
			precvbuf->pdata += pkt_offset;
			ptr = precvbuf->pdata;
			precvframe = NULL;
			pkt_copy = NULL;
		}

		rtw_enqueue_recvbuf(precvbuf, &precvpriv->free_recv_buf_queue);
	} while (1);

}
Esempio n. 9
0
static void rtl8723bs_recv_tasklet(void *priv)
{
	PADAPTER			padapter;
	PHAL_DATA_TYPE		pHalData;
	struct recv_priv		*precvpriv;
	struct recv_buf		*precvbuf;
	union recv_frame		*precvframe;
	struct rx_pkt_attrib	*pattrib;
	u8		*ptr;
	u32	pkt_offset, skb_len, alloc_sz;
	_pkt		*pkt_copy = NULL;
	u8		shift_sz = 0, rx_report_sz = 0;


	padapter = (PADAPTER)priv;
	pHalData = GET_HAL_DATA(padapter);
	precvpriv = &padapter->recvpriv;

	do {
		precvbuf = rtw_dequeue_recvbuf(&precvpriv->recv_buf_pending_queue);
		if (NULL == precvbuf) break;

		ptr = precvbuf->pdata;

		while (ptr < precvbuf->ptail)
		{
			precvframe = rtw_alloc_recvframe(&precvpriv->free_recv_queue);
			if (precvframe == NULL)
			{
				DBG_8192C("%s: no enough recv frame!\n", __FUNCTION__);
				rtw_enqueue_recvbuf_to_head(precvbuf, &precvpriv->recv_buf_pending_queue);

				/*  The case of can't allocte recvframe should be temporary, */
				/*  schedule again and hope recvframe is available next time. */
				tasklet_schedule(&precvpriv->recv_tasklet);
				return;
			}

			/* rx desc parsing */
			update_recvframe_attrib(padapter, precvframe, (struct recv_stat*)ptr);

			pattrib = &precvframe->u.hdr.attrib;

			/*  fix Hardware RX data error, drop whole recv_buffer */
			if ((!(pHalData->ReceiveConfig & RCR_ACRC32)) && pattrib->crc_err)
			{
				DBG_8192C("%s()-%d: RX Warning! rx CRC ERROR !!\n", __FUNCTION__, __LINE__);
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				break;
			}

			rx_report_sz = RXDESC_SIZE + pattrib->drvinfo_sz;
			pkt_offset = rx_report_sz + pattrib->shift_sz + pattrib->pkt_len;

			if ((ptr + pkt_offset) > precvbuf->ptail) {
				DBG_8192C("%s()-%d: : next pkt len(%p,%d) exceed ptail(%p)!\n", __FUNCTION__, __LINE__, ptr, pkt_offset, precvbuf->ptail);
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				break;
			}

			if ((pattrib->crc_err) || (pattrib->icv_err))
			{
				{
					DBG_8192C("%s: crc_err =%d icv_err =%d, skip!\n", __FUNCTION__, pattrib->crc_err, pattrib->icv_err);
				}
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
			}
			else
			{
				/* 	Modified by Albert 20101213 */
				/* 	For 8 bytes IP header alignment. */
				if (pattrib->qos)	/* 	Qos data, wireless lan header length is 26 */
				{
					shift_sz = 6;
				}
				else
				{
					shift_sz = 0;
				}

				skb_len = pattrib->pkt_len;

				/*  for first fragment packet, driver need allocate 1536+drvinfo_sz+RXDESC_SIZE to defrag packet. */
				/*  modify alloc_sz for recvive crc error packet by thomas 2011-06-02 */
				if ((pattrib->mfrag == 1)&&(pattrib->frag_num == 0)){
					if (skb_len <= 1650)
						alloc_sz = 1664;
					else
						alloc_sz = skb_len + 14;
				}
				else {
					alloc_sz = skb_len;
					/* 	6 is for IP header 8 bytes alignment in QoS packet case. */
					/* 	8 is for skb->data 4 bytes alignment. */
					alloc_sz += 14;
				}

				pkt_copy = rtw_skb_alloc(alloc_sz);

				if (pkt_copy)
				{
					pkt_copy->dev = padapter->pnetdev;
					precvframe->u.hdr.pkt = pkt_copy;
					skb_reserve(pkt_copy, 8 - ((SIZE_PTR)(pkt_copy->data) & 7));/* force pkt_copy->data at 8-byte alignment address */
					skb_reserve(pkt_copy, shift_sz);/* force ip_hdr at 8-byte alignment address according to shift_sz. */
					memcpy(pkt_copy->data, (ptr + rx_report_sz + pattrib->shift_sz), skb_len);
					precvframe->u.hdr.rx_head = pkt_copy->head;
					precvframe->u.hdr.rx_data = precvframe->u.hdr.rx_tail = pkt_copy->data;
					precvframe->u.hdr.rx_end = skb_end_pointer(pkt_copy);
				}
				else
				{
					if ((pattrib->mfrag == 1)&&(pattrib->frag_num == 0))
					{
						DBG_8192C("%s: alloc_skb fail, drop frag frame\n", __FUNCTION__);
						rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
						break;
					}

					precvframe->u.hdr.pkt = rtw_skb_clone(precvbuf->pskb);
					if (precvframe->u.hdr.pkt)
					{
						_pkt	*pkt_clone = precvframe->u.hdr.pkt;

						pkt_clone->data = ptr + rx_report_sz + pattrib->shift_sz;
						skb_reset_tail_pointer(pkt_clone);
						precvframe->u.hdr.rx_head = precvframe->u.hdr.rx_data = precvframe->u.hdr.rx_tail
							= pkt_clone->data;
						precvframe->u.hdr.rx_end =	pkt_clone->data + skb_len;
					}
					else
					{
						DBG_8192C("%s: rtw_skb_clone fail\n", __FUNCTION__);
						rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
						break;
					}
				}

				recvframe_put(precvframe, skb_len);
				/* recvframe_pull(precvframe, drvinfo_sz + RXDESC_SIZE); */

				if (pHalData->ReceiveConfig & RCR_APPFCS)
					recvframe_pull_tail(precvframe, IEEE80211_FCS_LEN);

				/*  move to drv info position */
				ptr += RXDESC_SIZE;

				/*  update drv info */
				if (pHalData->ReceiveConfig & RCR_APP_BA_SSN) {
					/* rtl8723s_update_bassn(padapter, pdrvinfo); */
					ptr += 4;
				}

				if (pattrib->pkt_rpt_type == NORMAL_RX)/* Normal rx packet */
				{
					if (pattrib->physt)
						update_recvframe_phyinfo(precvframe, (struct phy_stat*)ptr);

					if (rtw_recv_entry(precvframe) != _SUCCESS)
					{
						RT_TRACE(_module_rtl871x_recv_c_, _drv_dump_, ("%s: rtw_recv_entry(precvframe) != _SUCCESS\n", __FUNCTION__));
					}
				}
				else if (pattrib->pkt_rpt_type == C2H_PACKET)
				{
					C2H_EVT_HDR	C2hEvent;

					u16 len_c2h = pattrib->pkt_len;
					u8 *pbuf_c2h = precvframe->u.hdr.rx_data;
					u8 *pdata_c2h;

					C2hEvent.CmdID = pbuf_c2h[0];
					C2hEvent.CmdSeq = pbuf_c2h[1];
					C2hEvent.CmdLen = (len_c2h -2);
					pdata_c2h = pbuf_c2h+2;

					if (C2hEvent.CmdID == C2H_CCX_TX_RPT)
					{
						CCX_FwC2HTxRpt_8723b(padapter, pdata_c2h, C2hEvent.CmdLen);
					}
					else
					{
						rtl8723bs_c2h_packet_handler(padapter, precvframe->u.hdr.rx_data, pattrib->pkt_len);
					}

					rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);

				}
			}

			pkt_offset = _RND8(pkt_offset);
			precvbuf->pdata += pkt_offset;
			ptr = precvbuf->pdata;
			precvframe = NULL;
			pkt_copy = NULL;
		}

		rtw_enqueue_recvbuf(precvbuf, &precvpriv->free_recv_buf_queue);
	} while (1);

}
Esempio n. 10
0
static void rtl8188es_recv_tasklet(void *priv)
{
	PADAPTER				padapter;
	PHAL_DATA_TYPE			pHalData;
	struct recv_priv		*precvpriv;
	struct recv_buf			*precvbuf;
	union recv_frame		*precvframe;
	struct recv_frame_hdr	*phdr;
	struct rx_pkt_attrib	*pattrib;
	u8			*ptr;
	_pkt		*ppkt;
	u32			pkt_offset;
	_irqL		irql;


	padapter = (PADAPTER)priv;
	pHalData = GET_HAL_DATA(padapter);
	precvpriv = &padapter->recvpriv;
	
	do {
		precvbuf = rtw_dequeue_recvbuf(&precvpriv->recv_buf_pending_queue);
		if (NULL == precvbuf) break;

		ptr = precvbuf->pdata;

		while (ptr < precvbuf->ptail)
		{
			precvframe = rtw_alloc_recvframe(&precvpriv->free_recv_queue);
			if (precvframe == NULL) {
				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("rtl8723as_recv_tasklet: no enough recv frame!\n"));
				rtw_enqueue_recvbuf_to_head(precvbuf, &precvpriv->recv_buf_pending_queue);

				// The case of can't allocte recvframe should be temporary,
				// schedule again and hope recvframe is available next time.
#ifdef PLATFORM_LINUX
				tasklet_schedule(&precvpriv->recv_tasklet);
#endif
				return;
			}

			phdr = &precvframe->u.hdr;
			pattrib = &phdr->attrib;

			//rx desc parsing
			update_recvframe_attrib_88e(precvframe, (struct recv_stat*)ptr);

			// fix Hardware RX data error, drop whole recv_buffer
			if ((!(pHalData->ReceiveConfig & RCR_ACRC32)) && pattrib->crc_err)
			{
				DBG_8192C("%s()-%d: RX Warning! rx CRC ERROR !!\n", __FUNCTION__, __LINE__);
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				break;
			}

			pkt_offset = RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->pkt_len;

			if ((ptr + pkt_offset) > precvbuf->ptail) {
				DBG_8192C("%s()-%d: : next pkt len(%p,%d) exceed ptail(%p)!\n", __FUNCTION__, __LINE__, ptr, pkt_offset, precvbuf->ptail);
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
				break;
			}

			if ((pattrib->crc_err) || (pattrib->icv_err))
			{
				DBG_8192C("%s: crc_err=%d icv_err=%d, skip!\n", __FUNCTION__, pattrib->crc_err, pattrib->icv_err);
				rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
			}
			else
			{
				ppkt = skb_clone(precvbuf->pskb, GFP_ATOMIC);
				if (ppkt == NULL)
				{
					RT_TRACE(_module_rtl871x_recv_c_, _drv_crit_, ("rtl8723as_recv_tasklet: no enough memory to allocate SKB!\n"));
					rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
					rtw_enqueue_recvbuf_to_head(precvbuf, &precvpriv->recv_buf_pending_queue);

					// The case of can't allocte skb is serious and may never be recovered,
					// once bDriverStopped is enable, this task should be stopped.
					if (padapter->bDriverStopped == _FALSE) {
#ifdef PLATFORM_LINUX
						tasklet_schedule(&precvpriv->recv_tasklet);
#endif
					}

					return;
				}

				phdr->pkt = ppkt;
				phdr->len = 0;
				phdr->rx_head = precvbuf->phead;
				phdr->rx_data = phdr->rx_tail = precvbuf->pdata;
				phdr->rx_end = precvbuf->pend;

				recvframe_put(precvframe, pkt_offset);
				recvframe_pull(precvframe, RXDESC_SIZE + pattrib->drvinfo_sz);

				if (pHalData->ReceiveConfig & RCR_APPFCS)
					recvframe_pull_tail(precvframe, IEEE80211_FCS_LEN);

				// move to drv info position
				ptr += RXDESC_SIZE;

				// update drv info
				if (pHalData->ReceiveConfig & RCR_APP_BA_SSN) {
//					rtl8723s_update_bassn(padapter, pdrvinfo);
					ptr += 4;
				}

				if( (pattrib->physt) && (pattrib->pkt_rpt_type == NORMAL_RX))
					update_recvframe_phyinfo_88e(precvframe, (struct phy_stat*)ptr);


				if(pattrib->pkt_rpt_type == NORMAL_RX)//Normal rx packet
				{
					//printk("rx normal pkt\n");
					if (rtw_recv_entry(precvframe) != _SUCCESS)
					{
						RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("rtl8723as_recv_tasklet: rtw_recv_entry(precvframe) != _SUCCESS\n"));
					}
				}
				else{ // pkt_rpt_type == TX_REPORT1-CCX, TX_REPORT2-TX RTP,HIS_REPORT-USB HISR RTP

					//enqueue recvframe to txrtp queue
					if(pattrib->pkt_rpt_type == TX_REPORT1){
						printk("rx CCX \n");
					}
					else if(pattrib->pkt_rpt_type == TX_REPORT2){
						//printk("rx TX RPT \n");
						ODM_RA_TxRPT2Handle_8188E(
									&pHalData->odmpriv,
									precvframe->u.hdr.rx_data,
									pattrib->pkt_len,
									pattrib->MacIDValidEntry[0],
									pattrib->MacIDValidEntry[1]
									);

					}
					else if(pattrib->pkt_rpt_type == TX_REPORT1){
						printk("rx USB HISR \n");
					}

					rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);					

				}
			}

			// Page size of receive package is 128 bytes alignment =>DMA AGG
			// refer to _InitTransferPageSize()
			pkt_offset = _RND128(pkt_offset);
			precvbuf->pdata += pkt_offset;
			ptr = precvbuf->pdata;

		}

		dev_kfree_skb_any(precvbuf->pskb);
		precvbuf->pskb = NULL;
		rtw_enqueue_recvbuf(precvbuf, &precvpriv->free_recv_buf_queue);

	} while (1);

}
Esempio n. 11
0
int recvbuf2recvframe_s(_adapter *padapter, struct recv_buf *precvbuf)
{
//	_irqL irql;
	u8 *pbuf;
//	u8 bsumbit = _FALSE;
	uint pkt_len, pkt_offset;
	int transfer_len;
	struct recv_stat *prxstat;
	u16 pkt_cnt, drvinfo_sz;
	_queue *pfree_recv_queue;
	union recv_frame *precvframe = NULL,*plast_recvframe = NULL;
	struct recv_priv *precvpriv = &padapter->recvpriv;
//	struct intf_hdl *pintfhdl = &padapter->pio_queue->intf;

	RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("+recvbuf2recvframe()\n"));

	pfree_recv_queue = &(precvpriv->free_recv_queue);

	pbuf = (u8*)precvbuf->pbuf;

	prxstat = (struct recv_stat *)pbuf;
/*	{
		u8 i;
		printk("\n-----recvbuf-----\n");
		for (i=0;i<64;i=i+8) {
			printk("0x%.2x:0x%.2x:0x%.2x:0x%.2x:0x%.2x:0x%.2x:0x%.2x:0x%.2x\n",pbuf[i],pbuf[i+1],pbuf[i+2],pbuf[i+3],pbuf[i+4],pbuf[i+5],pbuf[i+6],pbuf[i+7]);
		}
		printk("\n-----recvbuf end-----\n");
	}*/
	transfer_len = precvbuf->len;
	precvbuf->ref_cnt = 1;
	do {
		precvframe = NULL;
		precvframe = rtw_alloc_recvframe(pfree_recv_queue);
		if (precvframe == NULL){
			RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("recvbuf2recvframe(), precvframe==NULL\n"));
			break;
		}
		if (plast_recvframe != NULL) {
			if (rtw_recv_entry(plast_recvframe) != _SUCCESS) {
				RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("recvbuf2recvframe(), rtw_recv_entry(precvframe) != _SUCCESS\n"));
			}
		}
		prxstat = (struct recv_stat*)pbuf;
		pkt_len = le32_to_cpu(prxstat->rxdw0&0x00003fff); //pkt_len = prxstat->frame_length;             

		RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("rxdesc: offsset0:0x%08x, offsset4:0x%08x, offsset8:0x%08x, offssetc:0x%08x\n",prxstat->rxdw0, prxstat->rxdw1, prxstat->rxdw2, prxstat->rxdw4));

		drvinfo_sz = le16_to_cpu((prxstat->rxdw0&0x000f0000)>>16);//uint 2^3 = 8 bytes
		drvinfo_sz = drvinfo_sz << 3;
		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("pkt_len=%d[0x%x] drvinfo_sz=%d[0x%x]\n", pkt_len, pkt_len, drvinfo_sz, drvinfo_sz));
		precvframe->u.hdr.precvbuf = precvbuf;
		precvframe->u.hdr.adapter = padapter;
		rtw_init_recvframe(precvframe, precvpriv);

		precvframe->u.hdr.rx_head = precvframe->u.hdr.rx_data = precvframe->u.hdr.rx_tail = pbuf;
		precvframe->u.hdr.rx_end = precvbuf->pend;
		update_recvframe_attrib_from_recvstat(&precvframe->u.hdr.attrib, prxstat);
		pkt_offset = pkt_len + drvinfo_sz + RXDESC_SIZE;

		recvframe_put(precvframe, pkt_len + drvinfo_sz + RXDESC_SIZE);
		recvframe_pull(precvframe, drvinfo_sz + RXDESC_SIZE);
/*		{
			u8 i;
			printk("\n-----packet-----\n");
			for(i=0;i<32;i++){
			printk("0x%.2x:0x%.2x:0x%.2x:0x%.2x:0x%.2x:0x%.2x:0x%.2x:0x%.2x\n",precvframe->u.hdr.rx_data[i],precvframe->u.hdr.rx_data[i+1],precvframe->u.hdr.rx_data[i+2],precvframe->u.hdr.rx_data[i+3],precvframe->u.hdr.rx_data[i+4],precvframe->u.hdr.rx_data[i+5],precvframe->u.hdr.rx_data[i+6],precvframe->u.hdr.rx_data[i+7]);
			}
			printk("\n-----packet end-----\n");
		}*/
		RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("\n precvframe->u.hdr.rx_head=%p precvframe->u.hdr.rx_data=%p precvframe->u.hdr.rx_tail=%p precvframe->u.hdr.rx_end=%p\n",precvframe->u.hdr.rx_head,precvframe->u.hdr.rx_data,precvframe->u.hdr.rx_tail,precvframe->u.hdr.rx_end));

		RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("\npkt_offset=%d [1]\n",pkt_offset));
		pkt_offset = _RND512(pkt_offset);
		RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("\npkt_offset=%d [2] transfer_len=%d\n",pkt_offset,transfer_len));
		transfer_len -= pkt_offset;
		RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("\n transfer_len=%d \n",transfer_len));
		pbuf += pkt_offset;
		if (transfer_len > 0)
			precvbuf->ref_cnt++;
		plast_recvframe = precvframe;
		precvframe = NULL;
	} while (transfer_len > 0);

	if (plast_recvframe != NULL) {
		if (rtw_recv_entry(plast_recvframe) != _SUCCESS) {
			RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("recvbuf2recvframe(), rtw_recv_entry(precvframe) != _SUCCESS\n"));
		}
	}

	dev_kfree_skb_any(precvbuf->pskb);
	precvbuf->pskb = NULL;
	return _SUCCESS;
}
Esempio n. 12
0
int recvbuf2recvframe(PADAPTER padapter, void *ptr)
{
	u8	*pbuf;
	u8	pkt_cnt = 0;
	u32	pkt_offset;
	s32	transfer_len;
	u8				*pphy_status = NULL;	
	union recv_frame	*precvframe = NULL;
	struct rx_pkt_attrib	*pattrib = NULL;
	HAL_DATA_TYPE	*pHalData = GET_HAL_DATA(padapter);
	struct recv_priv	*precvpriv = &padapter->recvpriv;
	_queue			*pfree_recv_queue = &precvpriv->free_recv_queue;
	_pkt *pskb;

#ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX
	pskb = NULL;
	transfer_len = (s32)((struct recv_buf*)ptr)->transfer_len;
	pbuf = ((struct recv_buf*)ptr)->pbuf;
#else
	pskb = (_pkt*)ptr;
	transfer_len = (s32)pskb->len;
	pbuf = pskb->data;
#endif//CONFIG_USE_USB_BUFFER_ALLOC_RX


#ifdef CONFIG_USB_RX_AGGREGATION
	pkt_cnt = GET_RX_STATUS_DESC_USB_AGG_PKTNUM_8812(pbuf);
#endif

	do{
		precvframe = rtw_alloc_recvframe(pfree_recv_queue);
		if(precvframe==NULL)
		{
			RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("recvbuf2recvframe: precvframe==NULL\n"));
			DBG_8192C("%s()-%d: rtw_alloc_recvframe() failed! RX Drop!\n", __FUNCTION__, __LINE__);	
			goto _exit_recvbuf2recvframe;
		}

		_rtw_init_listhead(&precvframe->u.hdr.list);	
		precvframe->u.hdr.precvbuf = NULL;	//can't access the precvbuf for new arch.
		precvframe->u.hdr.len=0;

		rtl8812_query_rx_desc_status(precvframe, pbuf);

		pattrib = &precvframe->u.hdr.attrib;		
				
		if ((padapter->registrypriv.mp_mode == 0) && ((pattrib->crc_err) || (pattrib->icv_err)))
		{
			DBG_8192C("%s: RX Warning! crc_err=%d icv_err=%d, skip!\n", __FUNCTION__, pattrib->crc_err, pattrib->icv_err);

			rtw_free_recvframe(precvframe, pfree_recv_queue);
			goto _exit_recvbuf2recvframe;
		}

		pkt_offset = RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->shift_sz + pattrib->pkt_len;

		if((pattrib->pkt_len<=0) || (pkt_offset>transfer_len))
		{	
			RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("recvbuf2recvframe: pkt_len<=0\n"));
			DBG_8192C("%s()-%d: RX Warning!,pkt_len<=0 or pkt_offset> transfer_len \n", __FUNCTION__, __LINE__);	
			rtw_free_recvframe(precvframe, pfree_recv_queue);
			goto _exit_recvbuf2recvframe;
		}

#ifdef CONFIG_RX_PACKET_APPEND_FCS
		if(pattrib->pkt_rpt_type == NORMAL_RX)
			pattrib->pkt_len -= IEEE80211_FCS_LEN;
#endif
		if(rtw_os_alloc_recvframe(padapter, precvframe, 
			(pbuf + pattrib->shift_sz + pattrib->drvinfo_sz + RXDESC_SIZE), pskb) == _FAIL)
		{
			rtw_free_recvframe(precvframe, pfree_recv_queue);

			goto _exit_recvbuf2recvframe;
		}

		recvframe_put(precvframe, pattrib->pkt_len);
		//recvframe_pull(precvframe, drvinfo_sz + RXDESC_SIZE);

		if(pattrib->pkt_rpt_type == NORMAL_RX)//Normal rx packet
		{
			if(pattrib->physt)
				pphy_status = (pbuf + RXDESC_OFFSET);

#ifdef CONFIG_CONCURRENT_MODE
			if(rtw_buddy_adapter_up(padapter))
			{
				if(pre_recv_entry(precvframe, pphy_status) != _SUCCESS)
				{
					RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,
						("recvbuf2recvframe: recv_entry(precvframe) != _SUCCESS\n"));
				}
			}
#endif //CONFIG_CONCURRENT_MODE

			if(pattrib->physt && pphy_status)
				rx_query_phy_status(precvframe, pphy_status);

			if(rtw_recv_entry(precvframe) != _SUCCESS)
			{
				RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,
					("recvbuf2recvframe: rtw_recv_entry(precvframe) != _SUCCESS\n"));
			}

		}
		else{ // pkt_rpt_type == TX_REPORT1-CCX, TX_REPORT2-TX RTP,HIS_REPORT-USB HISR RTP
			if (pattrib->pkt_rpt_type == C2H_PACKET) {
				//DBG_8192C("rx C2H_PACKET \n");
				C2HPacketHandler_8812(padapter,precvframe->u.hdr.rx_data,pattrib->pkt_len);
			}
			rtw_free_recvframe(precvframe, pfree_recv_queue);
		}

#ifdef CONFIG_USB_RX_AGGREGATION
		// jaguar 8-byte alignment
		pkt_offset = (u16)_RND8(pkt_offset);
		pkt_cnt--;
		pbuf += pkt_offset;
#endif
		transfer_len -= pkt_offset;
		precvframe = NULL;

	}while(transfer_len>0);

_exit_recvbuf2recvframe:

	return _SUCCESS;	
}