856 lines
30 KiB
C
856 lines
30 KiB
C
/**
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@file Qos.C
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This file contains the routines related to Quality of Service.
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*/
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#include "headers.h"
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static void EThCSGetPktInfo(PMINI_ADAPTER Adapter,PVOID pvEthPayload,PS_ETHCS_PKT_INFO pstEthCsPktInfo);
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static BOOLEAN EThCSClassifyPkt(PMINI_ADAPTER Adapter,struct sk_buff* skb,PS_ETHCS_PKT_INFO pstEthCsPktInfo,S_CLASSIFIER_RULE *pstClassifierRule, B_UINT8 EthCSCupport);
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static USHORT IpVersion4(PMINI_ADAPTER Adapter, struct iphdr *iphd,
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S_CLASSIFIER_RULE *pstClassifierRule );
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static VOID PruneQueue(PMINI_ADAPTER Adapter, INT iIndex);
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/*******************************************************************
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* Function - MatchSrcIpAddress()
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*
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* Description - Checks whether the Source IP address from the packet
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* matches with that of Queue.
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*
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* Parameters - pstClassifierRule: Pointer to the packet info structure.
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* - ulSrcIP : Source IP address from the packet.
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*
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* Returns - TRUE(If address matches) else FAIL .
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*********************************************************************/
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BOOLEAN MatchSrcIpAddress(S_CLASSIFIER_RULE *pstClassifierRule,ULONG ulSrcIP)
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{
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UCHAR ucLoopIndex=0;
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PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev);
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ulSrcIP=ntohl(ulSrcIP);
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if(0 == pstClassifierRule->ucIPSourceAddressLength)
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return TRUE;
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for(ucLoopIndex=0; ucLoopIndex < (pstClassifierRule->ucIPSourceAddressLength);ucLoopIndex++)
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{
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Src Ip Address Mask:0x%x PacketIp:0x%x and Classification:0x%x", (UINT)pstClassifierRule->stSrcIpAddress.ulIpv4Mask[ucLoopIndex], (UINT)ulSrcIP, (UINT)pstClassifierRule->stSrcIpAddress.ulIpv6Addr[ucLoopIndex]);
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if((pstClassifierRule->stSrcIpAddress.ulIpv4Mask[ucLoopIndex] & ulSrcIP)==
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(pstClassifierRule->stSrcIpAddress.ulIpv4Addr[ucLoopIndex] & pstClassifierRule->stSrcIpAddress.ulIpv4Mask[ucLoopIndex] ))
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{
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return TRUE;
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}
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}
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Src Ip Address Not Matched");
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return FALSE;
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}
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/*******************************************************************
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* Function - MatchDestIpAddress()
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*
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* Description - Checks whether the Destination IP address from the packet
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* matches with that of Queue.
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*
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* Parameters - pstClassifierRule: Pointer to the packet info structure.
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* - ulDestIP : Destination IP address from the packet.
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*
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* Returns - TRUE(If address matches) else FAIL .
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*********************************************************************/
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BOOLEAN MatchDestIpAddress(S_CLASSIFIER_RULE *pstClassifierRule,ULONG ulDestIP)
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{
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UCHAR ucLoopIndex=0;
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PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev);
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ulDestIP=ntohl(ulDestIP);
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if(0 == pstClassifierRule->ucIPDestinationAddressLength)
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return TRUE;
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Destination Ip Address 0x%x 0x%x 0x%x ", (UINT)ulDestIP, (UINT)pstClassifierRule->stDestIpAddress.ulIpv4Mask[ucLoopIndex], (UINT)pstClassifierRule->stDestIpAddress.ulIpv4Addr[ucLoopIndex]);
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for(ucLoopIndex=0;ucLoopIndex<(pstClassifierRule->ucIPDestinationAddressLength);ucLoopIndex++)
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{
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if((pstClassifierRule->stDestIpAddress.ulIpv4Mask[ucLoopIndex] & ulDestIP)==
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(pstClassifierRule->stDestIpAddress.ulIpv4Addr[ucLoopIndex] & pstClassifierRule->stDestIpAddress.ulIpv4Mask[ucLoopIndex]))
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{
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return TRUE;
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}
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}
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Destination Ip Address Not Matched");
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return FALSE;
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}
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/************************************************************************
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* Function - MatchTos()
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*
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* Description - Checks the TOS from the packet matches with that of queue.
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*
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* Parameters - pstClassifierRule : Pointer to the packet info structure.
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* - ucTypeOfService: TOS from the packet.
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*
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* Returns - TRUE(If address matches) else FAIL.
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**************************************************************************/
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BOOLEAN MatchTos(S_CLASSIFIER_RULE *pstClassifierRule,UCHAR ucTypeOfService)
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{
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PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev);
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if( 3 != pstClassifierRule->ucIPTypeOfServiceLength )
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return TRUE;
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if(((pstClassifierRule->ucTosMask & ucTypeOfService)<=pstClassifierRule->ucTosHigh) && ((pstClassifierRule->ucTosMask & ucTypeOfService)>=pstClassifierRule->ucTosLow))
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{
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return TRUE;
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}
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Type Of Service Not Matched");
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return FALSE;
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}
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/***************************************************************************
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* Function - MatchProtocol()
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*
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* Description - Checks the protocol from the packet matches with that of queue.
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*
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* Parameters - pstClassifierRule: Pointer to the packet info structure.
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* - ucProtocol : Protocol from the packet.
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*
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* Returns - TRUE(If address matches) else FAIL.
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****************************************************************************/
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BOOLEAN MatchProtocol(S_CLASSIFIER_RULE *pstClassifierRule,UCHAR ucProtocol)
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{
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UCHAR ucLoopIndex=0;
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PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev);
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if(0 == pstClassifierRule->ucProtocolLength)
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return TRUE;
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for(ucLoopIndex=0;ucLoopIndex<pstClassifierRule->ucProtocolLength;ucLoopIndex++)
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{
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Protocol:0x%X Classification Protocol:0x%X",ucProtocol,pstClassifierRule->ucProtocol[ucLoopIndex]);
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if(pstClassifierRule->ucProtocol[ucLoopIndex]==ucProtocol)
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{
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return TRUE;
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}
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}
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Protocol Not Matched");
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return FALSE;
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}
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/***********************************************************************
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* Function - MatchSrcPort()
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*
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* Description - Checks, Source port from the packet matches with that of queue.
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*
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* Parameters - pstClassifierRule: Pointer to the packet info structure.
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* - ushSrcPort : Source port from the packet.
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*
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* Returns - TRUE(If address matches) else FAIL.
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***************************************************************************/
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BOOLEAN MatchSrcPort(S_CLASSIFIER_RULE *pstClassifierRule,USHORT ushSrcPort)
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{
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UCHAR ucLoopIndex=0;
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PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev);
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if(0 == pstClassifierRule->ucSrcPortRangeLength)
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return TRUE;
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for(ucLoopIndex=0;ucLoopIndex<pstClassifierRule->ucSrcPortRangeLength;ucLoopIndex++)
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{
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if(ushSrcPort <= pstClassifierRule->usSrcPortRangeHi[ucLoopIndex] &&
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ushSrcPort >= pstClassifierRule->usSrcPortRangeLo[ucLoopIndex])
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{
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return TRUE;
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}
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}
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Src Port: %x Not Matched ",ushSrcPort);
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return FALSE;
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}
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/***********************************************************************
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* Function - MatchDestPort()
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*
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* Description - Checks, Destination port from packet matches with that of queue.
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*
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* Parameters - pstClassifierRule: Pointer to the packet info structure.
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* - ushDestPort : Destination port from the packet.
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*
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* Returns - TRUE(If address matches) else FAIL.
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***************************************************************************/
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BOOLEAN MatchDestPort(S_CLASSIFIER_RULE *pstClassifierRule,USHORT ushDestPort)
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{
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UCHAR ucLoopIndex=0;
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PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev);
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if(0 == pstClassifierRule->ucDestPortRangeLength)
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return TRUE;
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for(ucLoopIndex=0;ucLoopIndex<pstClassifierRule->ucDestPortRangeLength;ucLoopIndex++)
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{
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Matching Port:0x%X 0x%X 0x%X",ushDestPort,pstClassifierRule->usDestPortRangeLo[ucLoopIndex],pstClassifierRule->usDestPortRangeHi[ucLoopIndex]);
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if(ushDestPort <= pstClassifierRule->usDestPortRangeHi[ucLoopIndex] &&
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ushDestPort >= pstClassifierRule->usDestPortRangeLo[ucLoopIndex])
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{
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return TRUE;
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}
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}
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Dest Port: %x Not Matched",ushDestPort);
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return FALSE;
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}
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/**
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@ingroup tx_functions
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Compares IPV4 Ip address and port number
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@return Queue Index.
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*/
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static USHORT IpVersion4(PMINI_ADAPTER Adapter,
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struct iphdr *iphd,
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S_CLASSIFIER_RULE *pstClassifierRule )
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{
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xporthdr *xprt_hdr=NULL;
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BOOLEAN bClassificationSucceed=FALSE;
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "========>");
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xprt_hdr=(xporthdr *)((PUCHAR)iphd + sizeof(struct iphdr));
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do {
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Trying to see Direction = %d %d",
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pstClassifierRule->ucDirection,
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pstClassifierRule->usVCID_Value);
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//Checking classifier validity
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if(!pstClassifierRule->bUsed || pstClassifierRule->ucDirection == DOWNLINK_DIR)
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{
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bClassificationSucceed = FALSE;
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break;
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}
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "is IPv6 check!");
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if(pstClassifierRule->bIpv6Protocol)
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break;
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//**************Checking IP header parameter**************************//
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Trying to match Source IP Address");
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if(FALSE == (bClassificationSucceed =
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MatchSrcIpAddress(pstClassifierRule, iphd->saddr)))
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break;
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Source IP Address Matched");
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if(FALSE == (bClassificationSucceed =
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MatchDestIpAddress(pstClassifierRule, iphd->daddr)))
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break;
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Destination IP Address Matched");
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if(FALSE == (bClassificationSucceed =
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MatchTos(pstClassifierRule, iphd->tos)))
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{
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "TOS Match failed\n");
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break;
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}
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "TOS Matched");
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if(FALSE == (bClassificationSucceed =
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MatchProtocol(pstClassifierRule,iphd->protocol)))
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break;
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Protocol Matched");
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//if protocol is not TCP or UDP then no need of comparing source port and destination port
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if(iphd->protocol!=TCP && iphd->protocol!=UDP)
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break;
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//******************Checking Transport Layer Header field if present *****************//
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Source Port %04x",
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(iphd->protocol==UDP)?xprt_hdr->uhdr.source:xprt_hdr->thdr.source);
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if(FALSE == (bClassificationSucceed =
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MatchSrcPort(pstClassifierRule,
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ntohs((iphd->protocol == UDP)?
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xprt_hdr->uhdr.source:xprt_hdr->thdr.source))))
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break;
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Src Port Matched");
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Destination Port %04x",
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(iphd->protocol==UDP)?xprt_hdr->uhdr.dest:
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xprt_hdr->thdr.dest);
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if(FALSE == (bClassificationSucceed =
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MatchDestPort(pstClassifierRule,
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ntohs((iphd->protocol == UDP)?
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xprt_hdr->uhdr.dest:xprt_hdr->thdr.dest))))
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break;
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} while(0);
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if(TRUE==bClassificationSucceed)
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{
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INT iMatchedSFQueueIndex = 0;
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iMatchedSFQueueIndex = SearchSfid(Adapter,pstClassifierRule->ulSFID);
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if(iMatchedSFQueueIndex >= NO_OF_QUEUES)
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{
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bClassificationSucceed = FALSE;
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}
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else
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{
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if(FALSE == Adapter->PackInfo[iMatchedSFQueueIndex].bActive)
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{
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bClassificationSucceed = FALSE;
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}
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}
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}
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "IpVersion4 <==========");
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return bClassificationSucceed;
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}
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VOID PruneQueueAllSF(PMINI_ADAPTER Adapter)
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{
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UINT iIndex = 0;
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for(iIndex = 0; iIndex < HiPriority; iIndex++)
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{
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if(!Adapter->PackInfo[iIndex].bValid)
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continue;
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PruneQueue(Adapter, iIndex);
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}
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}
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/**
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@ingroup tx_functions
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This function checks if the max queue size for a queue
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is less than number of bytes in the queue. If so -
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drops packets from the Head till the number of bytes is
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less than or equal to max queue size for the queue.
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*/
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static VOID PruneQueue(PMINI_ADAPTER Adapter, INT iIndex)
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{
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struct sk_buff* PacketToDrop=NULL;
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struct net_device_stats *netstats;
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, PRUNE_QUEUE, DBG_LVL_ALL, "=====> Index %d",iIndex);
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if(iIndex == HiPriority)
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return;
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if(!Adapter || (iIndex < 0) || (iIndex > HiPriority))
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return;
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/* To Store the netdevice statistic */
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netstats = &Adapter->dev->stats;
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spin_lock_bh(&Adapter->PackInfo[iIndex].SFQueueLock);
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while(1)
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// while((UINT)Adapter->PackInfo[iIndex].uiCurrentPacketsOnHost >
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// SF_MAX_ALLOWED_PACKETS_TO_BACKUP)
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{
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, PRUNE_QUEUE, DBG_LVL_ALL, "uiCurrentBytesOnHost:%x uiMaxBucketSize :%x",
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Adapter->PackInfo[iIndex].uiCurrentBytesOnHost,
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Adapter->PackInfo[iIndex].uiMaxBucketSize);
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PacketToDrop = Adapter->PackInfo[iIndex].FirstTxQueue;
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if(PacketToDrop == NULL)
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break;
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if((Adapter->PackInfo[iIndex].uiCurrentPacketsOnHost < SF_MAX_ALLOWED_PACKETS_TO_BACKUP) &&
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((1000*(jiffies - *((B_UINT32 *)(PacketToDrop->cb)+SKB_CB_LATENCY_OFFSET))/HZ) <= Adapter->PackInfo[iIndex].uiMaxLatency))
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break;
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if(PacketToDrop)
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{
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if (netif_msg_tx_err(Adapter))
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pr_info(PFX "%s: tx queue %d overlimit\n",
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Adapter->dev->name, iIndex);
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netstats->tx_dropped++;
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DEQUEUEPACKET(Adapter->PackInfo[iIndex].FirstTxQueue,
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Adapter->PackInfo[iIndex].LastTxQueue);
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/// update current bytes and packets count
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Adapter->PackInfo[iIndex].uiCurrentBytesOnHost -=
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PacketToDrop->len;
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Adapter->PackInfo[iIndex].uiCurrentPacketsOnHost--;
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/// update dropped bytes and packets counts
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Adapter->PackInfo[iIndex].uiDroppedCountBytes += PacketToDrop->len;
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Adapter->PackInfo[iIndex].uiDroppedCountPackets++;
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dev_kfree_skb(PacketToDrop);
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}
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, PRUNE_QUEUE, DBG_LVL_ALL, "Dropped Bytes:%x Dropped Packets:%x",
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Adapter->PackInfo[iIndex].uiDroppedCountBytes,
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Adapter->PackInfo[iIndex].uiDroppedCountPackets);
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atomic_dec(&Adapter->TotalPacketCount);
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}
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spin_unlock_bh(&Adapter->PackInfo[iIndex].SFQueueLock);
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, PRUNE_QUEUE, DBG_LVL_ALL, "TotalPacketCount:%x",
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atomic_read(&Adapter->TotalPacketCount));
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, PRUNE_QUEUE, DBG_LVL_ALL, "<=====");
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}
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VOID flush_all_queues(PMINI_ADAPTER Adapter)
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{
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INT iQIndex;
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UINT uiTotalPacketLength;
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struct sk_buff* PacketToDrop=NULL;
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "=====>");
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// down(&Adapter->data_packet_queue_lock);
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for(iQIndex=LowPriority; iQIndex<HiPriority; iQIndex++)
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{
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struct net_device_stats *netstats = &Adapter->dev->stats;
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spin_lock_bh(&Adapter->PackInfo[iQIndex].SFQueueLock);
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while(Adapter->PackInfo[iQIndex].FirstTxQueue)
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{
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PacketToDrop = Adapter->PackInfo[iQIndex].FirstTxQueue;
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if(PacketToDrop)
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{
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uiTotalPacketLength = PacketToDrop->len;
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netstats->tx_dropped++;
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}
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else
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uiTotalPacketLength = 0;
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DEQUEUEPACKET(Adapter->PackInfo[iQIndex].FirstTxQueue,
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Adapter->PackInfo[iQIndex].LastTxQueue);
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/* Free the skb */
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dev_kfree_skb(PacketToDrop);
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/// update current bytes and packets count
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Adapter->PackInfo[iQIndex].uiCurrentBytesOnHost -= uiTotalPacketLength;
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Adapter->PackInfo[iQIndex].uiCurrentPacketsOnHost--;
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/// update dropped bytes and packets counts
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Adapter->PackInfo[iQIndex].uiDroppedCountBytes += uiTotalPacketLength;
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Adapter->PackInfo[iQIndex].uiDroppedCountPackets++;
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "Dropped Bytes:%x Dropped Packets:%x",
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Adapter->PackInfo[iQIndex].uiDroppedCountBytes,
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Adapter->PackInfo[iQIndex].uiDroppedCountPackets);
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atomic_dec(&Adapter->TotalPacketCount);
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}
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spin_unlock_bh(&Adapter->PackInfo[iQIndex].SFQueueLock);
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}
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// up(&Adapter->data_packet_queue_lock);
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BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "<=====");
|
|
}
|
|
|
|
USHORT ClassifyPacket(PMINI_ADAPTER Adapter,struct sk_buff* skb)
|
|
{
|
|
INT uiLoopIndex=0;
|
|
S_CLASSIFIER_RULE *pstClassifierRule = NULL;
|
|
S_ETHCS_PKT_INFO stEthCsPktInfo;
|
|
PVOID pvEThPayload = NULL;
|
|
struct iphdr *pIpHeader = NULL;
|
|
INT uiSfIndex=0;
|
|
USHORT usIndex=Adapter->usBestEffortQueueIndex;
|
|
BOOLEAN bFragmentedPkt=FALSE,bClassificationSucceed=FALSE;
|
|
USHORT usCurrFragment =0;
|
|
|
|
PTCP_HEADER pTcpHeader;
|
|
UCHAR IpHeaderLength;
|
|
UCHAR TcpHeaderLength;
|
|
|
|
pvEThPayload = skb->data;
|
|
*((UINT32*) (skb->cb) +SKB_CB_TCPACK_OFFSET ) = 0;
|
|
EThCSGetPktInfo(Adapter,pvEThPayload,&stEthCsPktInfo);
|
|
|
|
switch(stEthCsPktInfo.eNwpktEthFrameType)
|
|
{
|
|
case eEth802LLCFrame:
|
|
{
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "ClassifyPacket : 802LLCFrame\n");
|
|
pIpHeader = pvEThPayload + sizeof(ETH_CS_802_LLC_FRAME);
|
|
break;
|
|
}
|
|
|
|
case eEth802LLCSNAPFrame:
|
|
{
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "ClassifyPacket : 802LLC SNAP Frame\n");
|
|
pIpHeader = pvEThPayload + sizeof(ETH_CS_802_LLC_SNAP_FRAME);
|
|
break;
|
|
}
|
|
case eEth802QVLANFrame:
|
|
{
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "ClassifyPacket : 802.1Q VLANFrame\n");
|
|
pIpHeader = pvEThPayload + sizeof(ETH_CS_802_Q_FRAME);
|
|
break;
|
|
}
|
|
case eEthOtherFrame:
|
|
{
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "ClassifyPacket : ETH Other Frame\n");
|
|
pIpHeader = pvEThPayload + sizeof(ETH_CS_ETH2_FRAME);
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "ClassifyPacket : Unrecognized ETH Frame\n");
|
|
pIpHeader = pvEThPayload + sizeof(ETH_CS_ETH2_FRAME);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(stEthCsPktInfo.eNwpktIPFrameType == eIPv4Packet)
|
|
{
|
|
usCurrFragment = (ntohs(pIpHeader->frag_off) & IP_OFFSET);
|
|
if((ntohs(pIpHeader->frag_off) & IP_MF) || usCurrFragment)
|
|
bFragmentedPkt = TRUE;
|
|
|
|
if(bFragmentedPkt)
|
|
{
|
|
//Fragmented Packet. Get Frag Classifier Entry.
|
|
pstClassifierRule = GetFragIPClsEntry(Adapter,pIpHeader->id, pIpHeader->saddr);
|
|
if(pstClassifierRule)
|
|
{
|
|
BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL,"It is next Fragmented pkt");
|
|
bClassificationSucceed=TRUE;
|
|
}
|
|
if(!(ntohs(pIpHeader->frag_off) & IP_MF))
|
|
{
|
|
//Fragmented Last packet . Remove Frag Classifier Entry
|
|
BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL,"This is the last fragmented Pkt");
|
|
DelFragIPClsEntry(Adapter,pIpHeader->id, pIpHeader->saddr);
|
|
}
|
|
}
|
|
}
|
|
|
|
for(uiLoopIndex = MAX_CLASSIFIERS - 1; uiLoopIndex >= 0; uiLoopIndex--)
|
|
{
|
|
if(bClassificationSucceed)
|
|
break;
|
|
//Iterate through all classifiers which are already in order of priority
|
|
//to classify the packet until match found
|
|
do
|
|
{
|
|
if(FALSE==Adapter->astClassifierTable[uiLoopIndex].bUsed)
|
|
{
|
|
bClassificationSucceed=FALSE;
|
|
break;
|
|
}
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Adapter->PackInfo[%d].bvalid=True\n",uiLoopIndex);
|
|
|
|
if(0 == Adapter->astClassifierTable[uiLoopIndex].ucDirection)
|
|
{
|
|
bClassificationSucceed=FALSE;//cannot be processed for classification.
|
|
break; // it is a down link connection
|
|
}
|
|
|
|
pstClassifierRule = &Adapter->astClassifierTable[uiLoopIndex];
|
|
|
|
uiSfIndex = SearchSfid(Adapter,pstClassifierRule->ulSFID);
|
|
if (uiSfIndex >= NO_OF_QUEUES) {
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Queue Not Valid. SearchSfid for this classifier Failed\n");
|
|
break;
|
|
}
|
|
|
|
if(Adapter->PackInfo[uiSfIndex].bEthCSSupport)
|
|
{
|
|
|
|
if(eEthUnsupportedFrame==stEthCsPktInfo.eNwpktEthFrameType)
|
|
{
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, " ClassifyPacket : Packet Not a Valid Supported Ethernet Frame \n");
|
|
bClassificationSucceed = FALSE;
|
|
break;
|
|
}
|
|
|
|
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Performing ETH CS Classification on Classifier Rule ID : %x Service Flow ID : %lx\n",pstClassifierRule->uiClassifierRuleIndex,Adapter->PackInfo[uiSfIndex].ulSFID);
|
|
bClassificationSucceed = EThCSClassifyPkt(Adapter,skb,&stEthCsPktInfo,pstClassifierRule, Adapter->PackInfo[uiSfIndex].bEthCSSupport);
|
|
|
|
if(!bClassificationSucceed)
|
|
{
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "ClassifyPacket : Ethernet CS Classification Failed\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
else // No ETH Supported on this SF
|
|
{
|
|
if(eEthOtherFrame != stEthCsPktInfo.eNwpktEthFrameType)
|
|
{
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, " ClassifyPacket : Packet Not a 802.3 Ethernet Frame... hence not allowed over non-ETH CS SF \n");
|
|
bClassificationSucceed = FALSE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Proceeding to IP CS Clasification");
|
|
|
|
if(Adapter->PackInfo[uiSfIndex].bIPCSSupport)
|
|
{
|
|
|
|
if(stEthCsPktInfo.eNwpktIPFrameType == eNonIPPacket)
|
|
{
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, " ClassifyPacket : Packet is Not an IP Packet \n");
|
|
bClassificationSucceed = FALSE;
|
|
break;
|
|
}
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Dump IP Header : \n");
|
|
DumpFullPacket((PUCHAR)pIpHeader,20);
|
|
|
|
if(stEthCsPktInfo.eNwpktIPFrameType == eIPv4Packet)
|
|
bClassificationSucceed = IpVersion4(Adapter,pIpHeader,pstClassifierRule);
|
|
else if(stEthCsPktInfo.eNwpktIPFrameType == eIPv6Packet)
|
|
bClassificationSucceed = IpVersion6(Adapter,pIpHeader,pstClassifierRule);
|
|
}
|
|
|
|
}while(0);
|
|
}
|
|
|
|
if(bClassificationSucceed == TRUE)
|
|
{
|
|
BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "CF id : %d, SF ID is =%lu",pstClassifierRule->uiClassifierRuleIndex, pstClassifierRule->ulSFID);
|
|
|
|
//Store The matched Classifier in SKB
|
|
*((UINT32*)(skb->cb)+SKB_CB_CLASSIFICATION_OFFSET) = pstClassifierRule->uiClassifierRuleIndex;
|
|
if((TCP == pIpHeader->protocol ) && !bFragmentedPkt && (ETH_AND_IP_HEADER_LEN + TCP_HEADER_LEN <= skb->len) )
|
|
{
|
|
IpHeaderLength = pIpHeader->ihl;
|
|
pTcpHeader = (PTCP_HEADER)(((PUCHAR)pIpHeader)+(IpHeaderLength*4));
|
|
TcpHeaderLength = GET_TCP_HEADER_LEN(pTcpHeader->HeaderLength);
|
|
|
|
if((pTcpHeader->ucFlags & TCP_ACK) &&
|
|
(ntohs(pIpHeader->tot_len) == (IpHeaderLength*4)+(TcpHeaderLength*4)))
|
|
{
|
|
*((UINT32*) (skb->cb) +SKB_CB_TCPACK_OFFSET ) = TCP_ACK;
|
|
}
|
|
}
|
|
|
|
usIndex = SearchSfid(Adapter, pstClassifierRule->ulSFID);
|
|
BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "index is =%d", usIndex);
|
|
|
|
//If this is the first fragment of a Fragmented pkt, add this CF. Only This CF should be used for all other fragment of this Pkt.
|
|
if(bFragmentedPkt && (usCurrFragment == 0))
|
|
{
|
|
//First Fragment of Fragmented Packet. Create Frag CLS Entry
|
|
S_FRAGMENTED_PACKET_INFO stFragPktInfo;
|
|
stFragPktInfo.bUsed = TRUE;
|
|
stFragPktInfo.ulSrcIpAddress = pIpHeader->saddr;
|
|
stFragPktInfo.usIpIdentification = pIpHeader->id;
|
|
stFragPktInfo.pstMatchedClassifierEntry = pstClassifierRule;
|
|
stFragPktInfo.bOutOfOrderFragment = FALSE;
|
|
AddFragIPClsEntry(Adapter,&stFragPktInfo);
|
|
}
|
|
|
|
|
|
}
|
|
|
|
if(bClassificationSucceed)
|
|
return usIndex;
|
|
else
|
|
return INVALID_QUEUE_INDEX;
|
|
}
|
|
|
|
static BOOLEAN EthCSMatchSrcMACAddress(S_CLASSIFIER_RULE *pstClassifierRule,PUCHAR Mac)
|
|
{
|
|
UINT i=0;
|
|
PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
if(pstClassifierRule->ucEthCSSrcMACLen==0)
|
|
return TRUE;
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "%s \n",__FUNCTION__);
|
|
for(i=0;i<MAC_ADDRESS_SIZE;i++)
|
|
{
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "SRC MAC[%x] = %x ClassifierRuleSrcMAC = %x Mask : %x\n",i,Mac[i],pstClassifierRule->au8EThCSSrcMAC[i],pstClassifierRule->au8EThCSSrcMACMask[i]);
|
|
if((pstClassifierRule->au8EThCSSrcMAC[i] & pstClassifierRule->au8EThCSSrcMACMask[i])!=
|
|
(Mac[i] & pstClassifierRule->au8EThCSSrcMACMask[i]))
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static BOOLEAN EthCSMatchDestMACAddress(S_CLASSIFIER_RULE *pstClassifierRule,PUCHAR Mac)
|
|
{
|
|
UINT i=0;
|
|
PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
if(pstClassifierRule->ucEthCSDestMACLen==0)
|
|
return TRUE;
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "%s \n",__FUNCTION__);
|
|
for(i=0;i<MAC_ADDRESS_SIZE;i++)
|
|
{
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "SRC MAC[%x] = %x ClassifierRuleSrcMAC = %x Mask : %x\n",i,Mac[i],pstClassifierRule->au8EThCSDestMAC[i],pstClassifierRule->au8EThCSDestMACMask[i]);
|
|
if((pstClassifierRule->au8EThCSDestMAC[i] & pstClassifierRule->au8EThCSDestMACMask[i])!=
|
|
(Mac[i] & pstClassifierRule->au8EThCSDestMACMask[i]))
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static BOOLEAN EthCSMatchEThTypeSAP(S_CLASSIFIER_RULE *pstClassifierRule,struct sk_buff* skb,PS_ETHCS_PKT_INFO pstEthCsPktInfo)
|
|
{
|
|
PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
if((pstClassifierRule->ucEtherTypeLen==0)||
|
|
(pstClassifierRule->au8EthCSEtherType[0] == 0))
|
|
return TRUE;
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "%s SrcEtherType:%x CLS EtherType[0]:%x\n",__FUNCTION__,pstEthCsPktInfo->usEtherType,pstClassifierRule->au8EthCSEtherType[0]);
|
|
if(pstClassifierRule->au8EthCSEtherType[0] == 1)
|
|
{
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "%s CLS EtherType[1]:%x EtherType[2]:%x\n",__FUNCTION__,pstClassifierRule->au8EthCSEtherType[1],pstClassifierRule->au8EthCSEtherType[2]);
|
|
|
|
if(memcmp(&pstEthCsPktInfo->usEtherType,&pstClassifierRule->au8EthCSEtherType[1],2)==0)
|
|
return TRUE;
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
if(pstClassifierRule->au8EthCSEtherType[0] == 2)
|
|
{
|
|
if(eEth802LLCFrame != pstEthCsPktInfo->eNwpktEthFrameType)
|
|
return FALSE;
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "%s EthCS DSAP:%x EtherType[2]:%x\n",__FUNCTION__,pstEthCsPktInfo->ucDSAP,pstClassifierRule->au8EthCSEtherType[2]);
|
|
if(pstEthCsPktInfo->ucDSAP == pstClassifierRule->au8EthCSEtherType[2])
|
|
return TRUE;
|
|
else
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
static BOOLEAN EthCSMatchVLANRules(S_CLASSIFIER_RULE *pstClassifierRule,struct sk_buff* skb,PS_ETHCS_PKT_INFO pstEthCsPktInfo)
|
|
{
|
|
BOOLEAN bClassificationSucceed = FALSE;
|
|
USHORT usVLANID;
|
|
B_UINT8 uPriority = 0;
|
|
PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "%s CLS UserPrio:%x CLS VLANID:%x\n",__FUNCTION__,ntohs(*((USHORT *)pstClassifierRule->usUserPriority)),pstClassifierRule->usVLANID);
|
|
|
|
/* In case FW didn't receive the TLV, the priority field should be ignored */
|
|
if(pstClassifierRule->usValidityBitMap & (1<<PKT_CLASSIFICATION_USER_PRIORITY_VALID))
|
|
{
|
|
if(pstEthCsPktInfo->eNwpktEthFrameType!=eEth802QVLANFrame)
|
|
return FALSE;
|
|
|
|
uPriority = (ntohs(*(USHORT *)(skb->data + sizeof(ETH_HEADER_STRUC))) & 0xF000) >> 13;
|
|
|
|
if((uPriority >= pstClassifierRule->usUserPriority[0]) && (uPriority <= pstClassifierRule->usUserPriority[1]))
|
|
bClassificationSucceed = TRUE;
|
|
|
|
if(!bClassificationSucceed)
|
|
return FALSE;
|
|
}
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "ETH CS 802.1 D User Priority Rule Matched\n");
|
|
|
|
bClassificationSucceed = FALSE;
|
|
|
|
if(pstClassifierRule->usValidityBitMap & (1<<PKT_CLASSIFICATION_VLANID_VALID))
|
|
{
|
|
if(pstEthCsPktInfo->eNwpktEthFrameType!=eEth802QVLANFrame)
|
|
return FALSE;
|
|
|
|
usVLANID = ntohs(*(USHORT *)(skb->data + sizeof(ETH_HEADER_STRUC))) & 0xFFF;
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "%s Pkt VLANID %x Priority: %d\n",__FUNCTION__,usVLANID, uPriority);
|
|
|
|
if(usVLANID == ((pstClassifierRule->usVLANID & 0xFFF0) >> 4))
|
|
bClassificationSucceed = TRUE;
|
|
|
|
if(!bClassificationSucceed)
|
|
return FALSE;
|
|
}
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "ETH CS 802.1 Q VLAN ID Rule Matched\n");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
static BOOLEAN EThCSClassifyPkt(PMINI_ADAPTER Adapter,struct sk_buff* skb,
|
|
PS_ETHCS_PKT_INFO pstEthCsPktInfo,
|
|
S_CLASSIFIER_RULE *pstClassifierRule,
|
|
B_UINT8 EthCSCupport)
|
|
{
|
|
BOOLEAN bClassificationSucceed = FALSE;
|
|
bClassificationSucceed = EthCSMatchSrcMACAddress(pstClassifierRule,((ETH_HEADER_STRUC *)(skb->data))->au8SourceAddress);
|
|
if(!bClassificationSucceed)
|
|
return FALSE;
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "ETH CS SrcMAC Matched\n");
|
|
|
|
bClassificationSucceed = EthCSMatchDestMACAddress(pstClassifierRule,((ETH_HEADER_STRUC*)(skb->data))->au8DestinationAddress);
|
|
if(!bClassificationSucceed)
|
|
return FALSE;
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "ETH CS DestMAC Matched\n");
|
|
|
|
//classify on ETHType/802.2SAP TLV
|
|
bClassificationSucceed = EthCSMatchEThTypeSAP(pstClassifierRule,skb,pstEthCsPktInfo);
|
|
if(!bClassificationSucceed)
|
|
return FALSE;
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "ETH CS EthType/802.2SAP Matched\n");
|
|
|
|
//classify on 802.1VLAN Header Parameters
|
|
|
|
bClassificationSucceed = EthCSMatchVLANRules(pstClassifierRule,skb,pstEthCsPktInfo);
|
|
if(!bClassificationSucceed)
|
|
return FALSE;
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "ETH CS 802.1 VLAN Rules Matched\n");
|
|
|
|
return bClassificationSucceed;
|
|
}
|
|
|
|
static void EThCSGetPktInfo(PMINI_ADAPTER Adapter,PVOID pvEthPayload,
|
|
PS_ETHCS_PKT_INFO pstEthCsPktInfo)
|
|
{
|
|
USHORT u16Etype = ntohs(((ETH_HEADER_STRUC*)pvEthPayload)->u16Etype);
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "EthCSGetPktInfo : Eth Hdr Type : %X\n",u16Etype);
|
|
if(u16Etype > 0x5dc)
|
|
{
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "EthCSGetPktInfo : ETH2 Frame \n");
|
|
//ETH2 Frame
|
|
if(u16Etype == ETHERNET_FRAMETYPE_802QVLAN)
|
|
{
|
|
//802.1Q VLAN Header
|
|
pstEthCsPktInfo->eNwpktEthFrameType = eEth802QVLANFrame;
|
|
u16Etype = ((ETH_CS_802_Q_FRAME*)pvEthPayload)->EthType;
|
|
//((ETH_CS_802_Q_FRAME*)pvEthPayload)->UserPriority
|
|
}
|
|
else
|
|
{
|
|
pstEthCsPktInfo->eNwpktEthFrameType = eEthOtherFrame;
|
|
u16Etype = ntohs(u16Etype);
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
//802.2 LLC
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "802.2 LLC Frame \n");
|
|
pstEthCsPktInfo->eNwpktEthFrameType = eEth802LLCFrame;
|
|
pstEthCsPktInfo->ucDSAP = ((ETH_CS_802_LLC_FRAME*)pvEthPayload)->DSAP;
|
|
if(pstEthCsPktInfo->ucDSAP == 0xAA && ((ETH_CS_802_LLC_FRAME*)pvEthPayload)->SSAP == 0xAA)
|
|
{
|
|
//SNAP Frame
|
|
pstEthCsPktInfo->eNwpktEthFrameType = eEth802LLCSNAPFrame;
|
|
u16Etype = ((ETH_CS_802_LLC_SNAP_FRAME*)pvEthPayload)->usEtherType;
|
|
}
|
|
}
|
|
if(u16Etype == ETHERNET_FRAMETYPE_IPV4)
|
|
pstEthCsPktInfo->eNwpktIPFrameType = eIPv4Packet;
|
|
else if(u16Etype == ETHERNET_FRAMETYPE_IPV6)
|
|
pstEthCsPktInfo->eNwpktIPFrameType = eIPv6Packet;
|
|
else
|
|
pstEthCsPktInfo->eNwpktIPFrameType = eNonIPPacket;
|
|
|
|
pstEthCsPktInfo->usEtherType = ((ETH_HEADER_STRUC*)pvEthPayload)->u16Etype;
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "EthCsPktInfo->eNwpktIPFrameType : %x\n",pstEthCsPktInfo->eNwpktIPFrameType);
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "EthCsPktInfo->eNwpktEthFrameType : %x\n",pstEthCsPktInfo->eNwpktEthFrameType);
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "EthCsPktInfo->usEtherType : %x\n",pstEthCsPktInfo->usEtherType);
|
|
}
|
|
|
|
|
|
|