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![Lisa Nguyen](/assets/img/avatar_default.png)
Replace user-defined type FALSE with C defined false keyword. Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1451 lines
49 KiB
C
1451 lines
49 KiB
C
#include "headers.h"
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static UINT CreateSFToClassifierRuleMapping(B_UINT16 uiVcid, B_UINT16 uiClsId, struct bcm_phs_table *psServiceFlowTable, struct bcm_phs_rule *psPhsRule, B_UINT8 u8AssociatedPHSI);
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static UINT CreateClassiferToPHSRuleMapping(B_UINT16 uiVcid, B_UINT16 uiClsId, struct bcm_phs_entry *pstServiceFlowEntry, struct bcm_phs_rule *psPhsRule, B_UINT8 u8AssociatedPHSI);
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static UINT CreateClassifierPHSRule(B_UINT16 uiClsId, struct bcm_phs_classifier_table *psaClassifiertable, struct bcm_phs_rule *psPhsRule, enum bcm_phs_classifier_context eClsContext, B_UINT8 u8AssociatedPHSI);
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static UINT UpdateClassifierPHSRule(B_UINT16 uiClsId, struct bcm_phs_classifier_entry *pstClassifierEntry, struct bcm_phs_classifier_table *psaClassifiertable, struct bcm_phs_rule *psPhsRule, B_UINT8 u8AssociatedPHSI);
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static bool ValidatePHSRuleComplete(struct bcm_phs_rule *psPhsRule);
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static bool DerefPhsRule(B_UINT16 uiClsId, struct bcm_phs_classifier_table *psaClassifiertable, struct bcm_phs_rule *pstPhsRule);
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static UINT GetClassifierEntry(struct bcm_phs_classifier_table *pstClassifierTable, B_UINT32 uiClsid, enum bcm_phs_classifier_context eClsContext, struct bcm_phs_classifier_entry **ppstClassifierEntry);
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static UINT GetPhsRuleEntry(struct bcm_phs_classifier_table *pstClassifierTable, B_UINT32 uiPHSI, enum bcm_phs_classifier_context eClsContext, struct bcm_phs_rule **ppstPhsRule);
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static void free_phs_serviceflow_rules(struct bcm_phs_table *psServiceFlowRulesTable);
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static int phs_compress(struct bcm_phs_rule *phs_members, unsigned char *in_buf,
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unsigned char *out_buf, unsigned int *header_size, UINT *new_header_size);
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static int verify_suppress_phsf(unsigned char *in_buffer, unsigned char *out_buffer,
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unsigned char *phsf, unsigned char *phsm, unsigned int phss, unsigned int phsv, UINT *new_header_size);
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static int phs_decompress(unsigned char *in_buf, unsigned char *out_buf,
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struct bcm_phs_rule *phs_rules, UINT *header_size);
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static ULONG PhsCompress(void *pvContext,
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B_UINT16 uiVcid,
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B_UINT16 uiClsId,
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void *pvInputBuffer,
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void *pvOutputBuffer,
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UINT *pOldHeaderSize,
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UINT *pNewHeaderSize);
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static ULONG PhsDeCompress(void *pvContext,
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B_UINT16 uiVcid,
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void *pvInputBuffer,
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void *pvOutputBuffer,
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UINT *pInHeaderSize,
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UINT *pOutHeaderSize);
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#define IN
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#define OUT
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/*
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* Function: PHSTransmit
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* Description: This routine handle PHS(Payload Header Suppression for Tx path.
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* It extracts a fragment of the NDIS_PACKET containing the header
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* to be suppressed. It then suppresses the header by invoking PHS exported compress routine.
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* The header data after suppression is copied back to the NDIS_PACKET.
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*
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* Input parameters: IN struct bcm_mini_adapter *Adapter - Miniport Adapter Context
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* IN Packet - NDIS packet containing data to be transmitted
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* IN USHORT Vcid - vcid pertaining to connection on which the packet is being sent.Used to
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* identify PHS rule to be applied.
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* B_UINT16 uiClassifierRuleID - Classifier Rule ID
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* BOOLEAN bHeaderSuppressionEnabled - indicates if header suprression is enabled for SF.
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*
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* Return: STATUS_SUCCESS - If the send was successful.
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* Other - If an error occurred.
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*/
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int PHSTransmit(struct bcm_mini_adapter *Adapter,
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struct sk_buff **pPacket,
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USHORT Vcid,
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B_UINT16 uiClassifierRuleID,
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bool bHeaderSuppressionEnabled,
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UINT *PacketLen,
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UCHAR bEthCSSupport)
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{
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/* PHS Sepcific */
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UINT unPHSPktHdrBytesCopied = 0;
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UINT unPhsOldHdrSize = 0;
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UINT unPHSNewPktHeaderLen = 0;
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/* Pointer to PHS IN Hdr Buffer */
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PUCHAR pucPHSPktHdrInBuf = Adapter->stPhsTxContextInfo.ucaHdrSuppressionInBuf;
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/* Pointer to PHS OUT Hdr Buffer */
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PUCHAR pucPHSPktHdrOutBuf = Adapter->stPhsTxContextInfo.ucaHdrSuppressionOutBuf;
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UINT usPacketType;
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UINT BytesToRemove = 0;
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bool bPHSI = 0;
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LONG ulPhsStatus = 0;
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UINT numBytesCompressed = 0;
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struct sk_buff *newPacket = NULL;
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struct sk_buff *Packet = *pPacket;
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL, "In PHSTransmit");
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if (!bEthCSSupport)
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BytesToRemove = ETH_HLEN;
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/*
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* Accumulate the header upto the size we support suppression
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* from NDIS packet
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*/
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usPacketType = ((struct ethhdr *)(Packet->data))->h_proto;
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pucPHSPktHdrInBuf = Packet->data + BytesToRemove;
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/* considering data after ethernet header */
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if ((*PacketLen - BytesToRemove) < MAX_PHS_LENGTHS)
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unPHSPktHdrBytesCopied = (*PacketLen - BytesToRemove);
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else
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unPHSPktHdrBytesCopied = MAX_PHS_LENGTHS;
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if ((unPHSPktHdrBytesCopied > 0) &&
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(unPHSPktHdrBytesCopied <= MAX_PHS_LENGTHS)) {
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/*
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* Step 2 Suppress Header using PHS and fill into intermediate ucaPHSPktHdrOutBuf.
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* Suppress only if IP Header and PHS Enabled For the Service Flow
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*/
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if (((usPacketType == ETHERNET_FRAMETYPE_IPV4) ||
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(usPacketType == ETHERNET_FRAMETYPE_IPV6)) &&
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(bHeaderSuppressionEnabled)) {
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL, "\nTrying to PHS Compress Using Classifier rule 0x%X", uiClassifierRuleID);
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unPHSNewPktHeaderLen = unPHSPktHdrBytesCopied;
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ulPhsStatus = PhsCompress(&Adapter->stBCMPhsContext,
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Vcid,
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uiClassifierRuleID,
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pucPHSPktHdrInBuf,
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pucPHSPktHdrOutBuf,
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&unPhsOldHdrSize,
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&unPHSNewPktHeaderLen);
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL, "\nPHS Old header Size : %d New Header Size %d\n", unPhsOldHdrSize, unPHSNewPktHeaderLen);
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if (unPHSNewPktHeaderLen == unPhsOldHdrSize) {
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if (ulPhsStatus == STATUS_PHS_COMPRESSED)
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bPHSI = *pucPHSPktHdrOutBuf;
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ulPhsStatus = STATUS_PHS_NOCOMPRESSION;
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}
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if (ulPhsStatus == STATUS_PHS_COMPRESSED) {
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL, "PHS Sending packet Compressed");
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if (skb_cloned(Packet)) {
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newPacket = skb_copy(Packet, GFP_ATOMIC);
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if (newPacket == NULL)
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return STATUS_FAILURE;
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dev_kfree_skb(Packet);
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*pPacket = Packet = newPacket;
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pucPHSPktHdrInBuf = Packet->data + BytesToRemove;
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}
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numBytesCompressed = unPhsOldHdrSize - (unPHSNewPktHeaderLen + PHSI_LEN);
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memcpy(pucPHSPktHdrInBuf + numBytesCompressed, pucPHSPktHdrOutBuf, unPHSNewPktHeaderLen + PHSI_LEN);
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memcpy(Packet->data + numBytesCompressed, Packet->data, BytesToRemove);
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skb_pull(Packet, numBytesCompressed);
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return STATUS_SUCCESS;
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} else {
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/* if one byte headroom is not available, increase it through skb_cow */
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if (!(skb_headroom(Packet) > 0)) {
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if (skb_cow(Packet, 1)) {
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "SKB Cow Failed\n");
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return STATUS_FAILURE;
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}
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}
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skb_push(Packet, 1);
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/*
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* CAUTION: The MAC Header is getting corrupted
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* here for IP CS - can be saved by copying 14
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* Bytes. not needed .... hence corrupting it.
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*/
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*(Packet->data + BytesToRemove) = bPHSI;
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return STATUS_SUCCESS;
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}
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} else {
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if (!bHeaderSuppressionEnabled)
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL, "\nHeader Suppression Disabled For SF: No PHS\n");
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return STATUS_SUCCESS;
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}
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}
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/* BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"PHSTransmit : Dumping data packet After PHS"); */
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return STATUS_SUCCESS;
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}
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int PHSReceive(struct bcm_mini_adapter *Adapter,
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USHORT usVcid,
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struct sk_buff *packet,
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UINT *punPacketLen,
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UCHAR *pucEthernetHdr,
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UINT bHeaderSuppressionEnabled)
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{
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u32 nStandardPktHdrLen = 0;
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u32 nTotalsuppressedPktHdrBytes = 0;
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int ulPhsStatus = 0;
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PUCHAR pucInBuff = NULL;
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UINT TotalBytesAdded = 0;
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if (!bHeaderSuppressionEnabled) {
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_RECEIVE, DBG_LVL_ALL, "\nPhs Disabled for incoming packet");
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return ulPhsStatus;
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}
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pucInBuff = packet->data;
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/* Restore PHS suppressed header */
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nStandardPktHdrLen = packet->len;
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ulPhsStatus = PhsDeCompress(&Adapter->stBCMPhsContext,
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usVcid,
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pucInBuff,
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Adapter->ucaPHSPktRestoreBuf,
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&nTotalsuppressedPktHdrBytes,
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&nStandardPktHdrLen);
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_RECEIVE, DBG_LVL_ALL, "\nSuppressed PktHdrLen : 0x%x Restored PktHdrLen : 0x%x",
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nTotalsuppressedPktHdrBytes, nStandardPktHdrLen);
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if (ulPhsStatus != STATUS_PHS_COMPRESSED) {
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skb_pull(packet, 1);
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return STATUS_SUCCESS;
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} else {
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TotalBytesAdded = nStandardPktHdrLen - nTotalsuppressedPktHdrBytes - PHSI_LEN;
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if (TotalBytesAdded) {
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if (skb_headroom(packet) >= (SKB_RESERVE_ETHERNET_HEADER + TotalBytesAdded))
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skb_push(packet, TotalBytesAdded);
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else {
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if (skb_cow(packet, skb_headroom(packet) + TotalBytesAdded)) {
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "cow failed in receive\n");
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return STATUS_FAILURE;
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}
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skb_push(packet, TotalBytesAdded);
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}
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}
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memcpy(packet->data, Adapter->ucaPHSPktRestoreBuf, nStandardPktHdrLen);
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}
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return STATUS_SUCCESS;
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}
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void DumpFullPacket(UCHAR *pBuf, UINT nPktLen)
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{
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struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Dumping Data Packet");
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BCM_DEBUG_PRINT_BUFFER(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, pBuf, nPktLen);
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}
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/*
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* Procedure: phs_init
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*
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* Description: This routine is responsible for allocating memory for classifier and
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* PHS rules.
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*
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* Arguments:
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* pPhsdeviceExtension - ptr to Device extension containing PHS Classifier rules and PHS Rules , RX, TX buffer etc
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*
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* Returns:
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* TRUE(1) -If allocation of memory was successful.
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* FALSE -If allocation of memory fails.
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*/
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int phs_init(struct bcm_phs_extension *pPhsdeviceExtension, struct bcm_mini_adapter *Adapter)
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{
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int i;
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struct bcm_phs_table *pstServiceFlowTable;
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nPHS:phs_init function");
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if (pPhsdeviceExtension->pstServiceFlowPhsRulesTable)
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return -EINVAL;
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pPhsdeviceExtension->pstServiceFlowPhsRulesTable = kzalloc(sizeof(struct bcm_phs_table), GFP_KERNEL);
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if (!pPhsdeviceExtension->pstServiceFlowPhsRulesTable) {
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nAllocation ServiceFlowPhsRulesTable failed");
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return -ENOMEM;
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}
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pstServiceFlowTable = pPhsdeviceExtension->pstServiceFlowPhsRulesTable;
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for (i = 0; i < MAX_SERVICEFLOWS; i++) {
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struct bcm_phs_entry sServiceFlow = pstServiceFlowTable->stSFList[i];
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sServiceFlow.pstClassifierTable = kzalloc(sizeof(struct bcm_phs_classifier_table), GFP_KERNEL);
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if (!sServiceFlow.pstClassifierTable) {
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nAllocation failed");
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free_phs_serviceflow_rules(pPhsdeviceExtension->pstServiceFlowPhsRulesTable);
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pPhsdeviceExtension->pstServiceFlowPhsRulesTable = NULL;
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return -ENOMEM;
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}
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}
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pPhsdeviceExtension->CompressedTxBuffer = kmalloc(PHS_BUFFER_SIZE, GFP_KERNEL);
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if (pPhsdeviceExtension->CompressedTxBuffer == NULL) {
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nAllocation failed");
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free_phs_serviceflow_rules(pPhsdeviceExtension->pstServiceFlowPhsRulesTable);
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pPhsdeviceExtension->pstServiceFlowPhsRulesTable = NULL;
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return -ENOMEM;
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}
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pPhsdeviceExtension->UnCompressedRxBuffer = kmalloc(PHS_BUFFER_SIZE, GFP_KERNEL);
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if (pPhsdeviceExtension->UnCompressedRxBuffer == NULL) {
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nAllocation failed");
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kfree(pPhsdeviceExtension->CompressedTxBuffer);
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free_phs_serviceflow_rules(pPhsdeviceExtension->pstServiceFlowPhsRulesTable);
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pPhsdeviceExtension->pstServiceFlowPhsRulesTable = NULL;
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return -ENOMEM;
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}
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\n phs_init Successful");
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return STATUS_SUCCESS;
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}
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int PhsCleanup(IN struct bcm_phs_extension *pPHSDeviceExt)
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{
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if (pPHSDeviceExt->pstServiceFlowPhsRulesTable) {
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free_phs_serviceflow_rules(pPHSDeviceExt->pstServiceFlowPhsRulesTable);
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pPHSDeviceExt->pstServiceFlowPhsRulesTable = NULL;
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}
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kfree(pPHSDeviceExt->CompressedTxBuffer);
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pPHSDeviceExt->CompressedTxBuffer = NULL;
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kfree(pPHSDeviceExt->UnCompressedRxBuffer);
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pPHSDeviceExt->UnCompressedRxBuffer = NULL;
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return 0;
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}
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/*
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* PHS functions
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* PhsUpdateClassifierRule
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*
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* Routine Description:
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* Exported function to add or modify a PHS Rule.
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*
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* Arguments:
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* IN void* pvContext - PHS Driver Specific Context
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* IN B_UINT16 uiVcid - The Service Flow ID for which the PHS rule applies
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* IN B_UINT16 uiClsId - The Classifier ID within the Service Flow for which the PHS rule applies.
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* IN struct bcm_phs_rule *psPhsRule - The PHS Rule strcuture to be added to the PHS Rule table.
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*
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* Return Value:
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*
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* 0 if successful,
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* >0 Error.
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*/
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ULONG PhsUpdateClassifierRule(IN void *pvContext,
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IN B_UINT16 uiVcid ,
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IN B_UINT16 uiClsId ,
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IN struct bcm_phs_rule *psPhsRule,
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IN B_UINT8 u8AssociatedPHSI)
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{
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ULONG lStatus = 0;
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UINT nSFIndex = 0;
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struct bcm_phs_entry *pstServiceFlowEntry = NULL;
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struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
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struct bcm_phs_extension *pDeviceExtension = (struct bcm_phs_extension *)pvContext;
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "PHS With Corr2 Changes\n");
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if (pDeviceExtension == NULL) {
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BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "Invalid Device Extension\n");
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return ERR_PHS_INVALID_DEVICE_EXETENSION;
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}
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if (u8AssociatedPHSI == 0)
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return ERR_PHS_INVALID_PHS_RULE;
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/* Retrieve the SFID Entry Index for requested Service Flow */
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nSFIndex = GetServiceFlowEntry(pDeviceExtension->pstServiceFlowPhsRulesTable,
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uiVcid, &pstServiceFlowEntry);
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if (nSFIndex == PHS_INVALID_TABLE_INDEX) {
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/* This is a new SF. Create a mapping entry for this */
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lStatus = CreateSFToClassifierRuleMapping(uiVcid, uiClsId,
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pDeviceExtension->pstServiceFlowPhsRulesTable, psPhsRule, u8AssociatedPHSI);
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return lStatus;
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}
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/* SF already Exists Add PHS Rule to existing SF */
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lStatus = CreateClassiferToPHSRuleMapping(uiVcid, uiClsId,
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pstServiceFlowEntry, psPhsRule, u8AssociatedPHSI);
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return lStatus;
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}
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/*
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* PhsDeletePHSRule
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*
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* Routine Description:
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* Deletes the specified phs Rule within Vcid
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*
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* Arguments:
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* IN void* pvContext - PHS Driver Specific Context
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* IN B_UINT16 uiVcid - The Service Flow ID for which the PHS rule applies
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* IN B_UINT8 u8PHSI - the PHS Index identifying PHS rule to be deleted.
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*
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* Return Value:
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*
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* 0 if successful,
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* >0 Error.
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*/
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ULONG PhsDeletePHSRule(IN void *pvContext, IN B_UINT16 uiVcid, IN B_UINT8 u8PHSI)
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{
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ULONG lStatus = 0;
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UINT nSFIndex = 0, nClsidIndex = 0;
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struct bcm_phs_entry *pstServiceFlowEntry = NULL;
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struct bcm_phs_classifier_table *pstClassifierRulesTable = NULL;
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struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
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struct bcm_phs_extension *pDeviceExtension = (struct bcm_phs_extension *)pvContext;
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|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "======>\n");
|
|
|
|
if (pDeviceExtension) {
|
|
/* Retrieve the SFID Entry Index for requested Service Flow */
|
|
nSFIndex = GetServiceFlowEntry(pDeviceExtension->pstServiceFlowPhsRulesTable, uiVcid, &pstServiceFlowEntry);
|
|
|
|
if (nSFIndex == PHS_INVALID_TABLE_INDEX) {
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "SFID Match Failed\n");
|
|
return ERR_SF_MATCH_FAIL;
|
|
}
|
|
|
|
pstClassifierRulesTable = pstServiceFlowEntry->pstClassifierTable;
|
|
if (pstClassifierRulesTable) {
|
|
for (nClsidIndex = 0; nClsidIndex < MAX_PHSRULE_PER_SF; nClsidIndex++) {
|
|
if (pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].bUsed && pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule) {
|
|
if (pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule->u8PHSI == u8PHSI) {
|
|
|
|
if (pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule->u8RefCnt)
|
|
pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule->u8RefCnt--;
|
|
|
|
if (0 == pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule->u8RefCnt)
|
|
kfree(pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule);
|
|
|
|
memset(&pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex], 0,
|
|
sizeof(struct bcm_phs_classifier_entry));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return lStatus;
|
|
}
|
|
|
|
/*
|
|
* PhsDeleteClassifierRule
|
|
*
|
|
* Routine Description:
|
|
* Exported function to Delete a PHS Rule for the SFID,CLSID Pair.
|
|
*
|
|
* Arguments:
|
|
* IN void* pvContext - PHS Driver Specific Context
|
|
* IN B_UINT16 uiVcid - The Service Flow ID for which the PHS rule applies
|
|
* IN B_UINT16 uiClsId - The Classifier ID within the Service Flow for which the PHS rule applies.
|
|
*
|
|
* Return Value:
|
|
*
|
|
* 0 if successful,
|
|
* >0 Error.
|
|
*/
|
|
ULONG PhsDeleteClassifierRule(IN void *pvContext, IN B_UINT16 uiVcid, IN B_UINT16 uiClsId)
|
|
{
|
|
ULONG lStatus = 0;
|
|
UINT nSFIndex = 0, nClsidIndex = 0;
|
|
struct bcm_phs_entry *pstServiceFlowEntry = NULL;
|
|
struct bcm_phs_classifier_entry *pstClassifierEntry = NULL;
|
|
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
struct bcm_phs_extension *pDeviceExtension = (struct bcm_phs_extension *)pvContext;
|
|
|
|
if (pDeviceExtension) {
|
|
/* Retrieve the SFID Entry Index for requested Service Flow */
|
|
nSFIndex = GetServiceFlowEntry(pDeviceExtension->pstServiceFlowPhsRulesTable, uiVcid, &pstServiceFlowEntry);
|
|
if (nSFIndex == PHS_INVALID_TABLE_INDEX) {
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "SFID Match Failed\n");
|
|
return ERR_SF_MATCH_FAIL;
|
|
}
|
|
|
|
nClsidIndex = GetClassifierEntry(pstServiceFlowEntry->pstClassifierTable,
|
|
uiClsId, eActiveClassifierRuleContext, &pstClassifierEntry);
|
|
|
|
if ((nClsidIndex != PHS_INVALID_TABLE_INDEX) && (!pstClassifierEntry->bUnclassifiedPHSRule)) {
|
|
if (pstClassifierEntry->pstPhsRule) {
|
|
if (pstClassifierEntry->pstPhsRule->u8RefCnt)
|
|
pstClassifierEntry->pstPhsRule->u8RefCnt--;
|
|
|
|
if (0 == pstClassifierEntry->pstPhsRule->u8RefCnt)
|
|
kfree(pstClassifierEntry->pstPhsRule);
|
|
}
|
|
memset(pstClassifierEntry, 0, sizeof(struct bcm_phs_classifier_entry));
|
|
}
|
|
|
|
nClsidIndex = GetClassifierEntry(pstServiceFlowEntry->pstClassifierTable,
|
|
uiClsId, eOldClassifierRuleContext, &pstClassifierEntry);
|
|
|
|
if ((nClsidIndex != PHS_INVALID_TABLE_INDEX) && (!pstClassifierEntry->bUnclassifiedPHSRule)) {
|
|
kfree(pstClassifierEntry->pstPhsRule);
|
|
memset(pstClassifierEntry, 0, sizeof(struct bcm_phs_classifier_entry));
|
|
}
|
|
}
|
|
return lStatus;
|
|
}
|
|
|
|
/*
|
|
* PhsDeleteSFRules
|
|
*
|
|
* Routine Description:
|
|
* Exported function to Delete a all PHS Rules for the SFID.
|
|
*
|
|
* Arguments:
|
|
* IN void* pvContext - PHS Driver Specific Context
|
|
* IN B_UINT16 uiVcid - The Service Flow ID for which the PHS rules need to be deleted
|
|
*
|
|
* Return Value:
|
|
*
|
|
* 0 if successful,
|
|
* >0 Error.
|
|
*/
|
|
ULONG PhsDeleteSFRules(IN void *pvContext, IN B_UINT16 uiVcid)
|
|
{
|
|
ULONG lStatus = 0;
|
|
UINT nSFIndex = 0, nClsidIndex = 0;
|
|
struct bcm_phs_entry *pstServiceFlowEntry = NULL;
|
|
struct bcm_phs_classifier_table *pstClassifierRulesTable = NULL;
|
|
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
struct bcm_phs_extension *pDeviceExtension = (struct bcm_phs_extension *)pvContext;
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "====>\n");
|
|
|
|
if (pDeviceExtension) {
|
|
/* Retrieve the SFID Entry Index for requested Service Flow */
|
|
nSFIndex = GetServiceFlowEntry(pDeviceExtension->pstServiceFlowPhsRulesTable,
|
|
uiVcid, &pstServiceFlowEntry);
|
|
if (nSFIndex == PHS_INVALID_TABLE_INDEX) {
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "SFID Match Failed\n");
|
|
return ERR_SF_MATCH_FAIL;
|
|
}
|
|
|
|
pstClassifierRulesTable = pstServiceFlowEntry->pstClassifierTable;
|
|
if (pstClassifierRulesTable) {
|
|
for (nClsidIndex = 0; nClsidIndex < MAX_PHSRULE_PER_SF; nClsidIndex++) {
|
|
if (pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule) {
|
|
|
|
if (pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule->u8RefCnt)
|
|
pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule->u8RefCnt--;
|
|
|
|
if (0 == pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule->u8RefCnt)
|
|
kfree(pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule);
|
|
|
|
pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule = NULL;
|
|
}
|
|
memset(&pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex], 0, sizeof(struct bcm_phs_classifier_entry));
|
|
if (pstClassifierRulesTable->stOldPhsRulesList[nClsidIndex].pstPhsRule) {
|
|
|
|
if (pstClassifierRulesTable->stOldPhsRulesList[nClsidIndex].pstPhsRule->u8RefCnt)
|
|
pstClassifierRulesTable->stOldPhsRulesList[nClsidIndex].pstPhsRule->u8RefCnt--;
|
|
|
|
if (0 == pstClassifierRulesTable->stOldPhsRulesList[nClsidIndex].pstPhsRule->u8RefCnt)
|
|
kfree(pstClassifierRulesTable->stOldPhsRulesList[nClsidIndex].pstPhsRule);
|
|
|
|
pstClassifierRulesTable->stOldPhsRulesList[nClsidIndex].pstPhsRule = NULL;
|
|
}
|
|
memset(&pstClassifierRulesTable->stOldPhsRulesList[nClsidIndex], 0, sizeof(struct bcm_phs_classifier_entry));
|
|
}
|
|
}
|
|
pstServiceFlowEntry->bUsed = false;
|
|
pstServiceFlowEntry->uiVcid = 0;
|
|
}
|
|
|
|
return lStatus;
|
|
}
|
|
|
|
/*
|
|
* PhsCompress
|
|
*
|
|
* Routine Description:
|
|
* Exported function to compress the data using PHS.
|
|
*
|
|
* Arguments:
|
|
* IN void* pvContext - PHS Driver Specific Context.
|
|
* IN B_UINT16 uiVcid - The Service Flow ID to which current packet header compression applies.
|
|
* IN UINT uiClsId - The Classifier ID to which current packet header compression applies.
|
|
* IN void *pvInputBuffer - The Input buffer containg packet header data
|
|
* IN void *pvOutputBuffer - The output buffer returned by this function after PHS
|
|
* IN UINT *pOldHeaderSize - The actual size of the header before PHS
|
|
* IN UINT *pNewHeaderSize - The new size of the header after applying PHS
|
|
*
|
|
* Return Value:
|
|
*
|
|
* 0 if successful,
|
|
* >0 Error.
|
|
*/
|
|
static ULONG PhsCompress(IN void *pvContext,
|
|
IN B_UINT16 uiVcid,
|
|
IN B_UINT16 uiClsId,
|
|
IN void *pvInputBuffer,
|
|
OUT void *pvOutputBuffer,
|
|
OUT UINT *pOldHeaderSize,
|
|
OUT UINT *pNewHeaderSize)
|
|
{
|
|
UINT nSFIndex = 0, nClsidIndex = 0;
|
|
struct bcm_phs_entry *pstServiceFlowEntry = NULL;
|
|
struct bcm_phs_classifier_entry *pstClassifierEntry = NULL;
|
|
struct bcm_phs_rule *pstPhsRule = NULL;
|
|
ULONG lStatus = 0;
|
|
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
struct bcm_phs_extension *pDeviceExtension = (struct bcm_phs_extension *)pvContext;
|
|
|
|
if (pDeviceExtension == NULL) {
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL, "Invalid Device Extension\n");
|
|
lStatus = STATUS_PHS_NOCOMPRESSION;
|
|
return lStatus;
|
|
}
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL, "Suppressing header\n");
|
|
|
|
/* Retrieve the SFID Entry Index for requested Service Flow */
|
|
nSFIndex = GetServiceFlowEntry(pDeviceExtension->pstServiceFlowPhsRulesTable,
|
|
uiVcid, &pstServiceFlowEntry);
|
|
if (nSFIndex == PHS_INVALID_TABLE_INDEX) {
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL, "SFID Match Failed\n");
|
|
lStatus = STATUS_PHS_NOCOMPRESSION;
|
|
return lStatus;
|
|
}
|
|
|
|
nClsidIndex = GetClassifierEntry(pstServiceFlowEntry->pstClassifierTable,
|
|
uiClsId, eActiveClassifierRuleContext, &pstClassifierEntry);
|
|
|
|
if (nClsidIndex == PHS_INVALID_TABLE_INDEX) {
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL, "No PHS Rule Defined For Classifier\n");
|
|
lStatus = STATUS_PHS_NOCOMPRESSION;
|
|
return lStatus;
|
|
}
|
|
|
|
/* get rule from SF id,Cls ID pair and proceed */
|
|
pstPhsRule = pstClassifierEntry->pstPhsRule;
|
|
if (!ValidatePHSRuleComplete(pstPhsRule)) {
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "PHS Rule Defined For Classifier But Not Complete\n");
|
|
lStatus = STATUS_PHS_NOCOMPRESSION;
|
|
return lStatus;
|
|
}
|
|
|
|
/* Compress Packet */
|
|
lStatus = phs_compress(pstPhsRule, (PUCHAR)pvInputBuffer,
|
|
(PUCHAR)pvOutputBuffer, pOldHeaderSize, pNewHeaderSize);
|
|
|
|
if (lStatus == STATUS_PHS_COMPRESSED) {
|
|
pstPhsRule->PHSModifiedBytes += *pOldHeaderSize - *pNewHeaderSize - 1;
|
|
pstPhsRule->PHSModifiedNumPackets++;
|
|
} else
|
|
pstPhsRule->PHSErrorNumPackets++;
|
|
|
|
return lStatus;
|
|
}
|
|
|
|
/*
|
|
* PhsDeCompress
|
|
*
|
|
* Routine Description:
|
|
* Exported function to restore the packet header in Rx path.
|
|
*
|
|
* Arguments:
|
|
* IN void* pvContext - PHS Driver Specific Context.
|
|
* IN B_UINT16 uiVcid - The Service Flow ID to which current packet header restoration applies.
|
|
* IN void *pvInputBuffer - The Input buffer containg suppressed packet header data
|
|
* OUT void *pvOutputBuffer - The output buffer returned by this function after restoration
|
|
* OUT UINT *pHeaderSize - The packet header size after restoration is returned in this parameter.
|
|
*
|
|
* Return Value:
|
|
*
|
|
* 0 if successful,
|
|
* >0 Error.
|
|
*/
|
|
static ULONG PhsDeCompress(IN void *pvContext,
|
|
IN B_UINT16 uiVcid,
|
|
IN void *pvInputBuffer,
|
|
OUT void *pvOutputBuffer,
|
|
OUT UINT *pInHeaderSize,
|
|
OUT UINT *pOutHeaderSize)
|
|
{
|
|
UINT nSFIndex = 0, nPhsRuleIndex = 0;
|
|
struct bcm_phs_entry *pstServiceFlowEntry = NULL;
|
|
struct bcm_phs_rule *pstPhsRule = NULL;
|
|
UINT phsi;
|
|
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
struct bcm_phs_extension *pDeviceExtension = (struct bcm_phs_extension *)pvContext;
|
|
|
|
*pInHeaderSize = 0;
|
|
if (pDeviceExtension == NULL) {
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_RECEIVE, DBG_LVL_ALL, "Invalid Device Extension\n");
|
|
return ERR_PHS_INVALID_DEVICE_EXETENSION;
|
|
}
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_RECEIVE, DBG_LVL_ALL, "Restoring header\n");
|
|
|
|
phsi = *((unsigned char *)(pvInputBuffer));
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_RECEIVE, DBG_LVL_ALL, "PHSI To Be Used For restore : %x\n", phsi);
|
|
if (phsi == UNCOMPRESSED_PACKET)
|
|
return STATUS_PHS_NOCOMPRESSION;
|
|
|
|
/* Retrieve the SFID Entry Index for requested Service Flow */
|
|
nSFIndex = GetServiceFlowEntry(pDeviceExtension->pstServiceFlowPhsRulesTable,
|
|
uiVcid, &pstServiceFlowEntry);
|
|
if (nSFIndex == PHS_INVALID_TABLE_INDEX) {
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_RECEIVE, DBG_LVL_ALL, "SFID Match Failed During Lookup\n");
|
|
return ERR_SF_MATCH_FAIL;
|
|
}
|
|
|
|
nPhsRuleIndex = GetPhsRuleEntry(pstServiceFlowEntry->pstClassifierTable, phsi,
|
|
eActiveClassifierRuleContext, &pstPhsRule);
|
|
if (nPhsRuleIndex == PHS_INVALID_TABLE_INDEX) {
|
|
/* Phs Rule does not exist in active rules table. Lets try in the old rules table. */
|
|
nPhsRuleIndex = GetPhsRuleEntry(pstServiceFlowEntry->pstClassifierTable,
|
|
phsi, eOldClassifierRuleContext, &pstPhsRule);
|
|
if (nPhsRuleIndex == PHS_INVALID_TABLE_INDEX)
|
|
return ERR_PHSRULE_MATCH_FAIL;
|
|
}
|
|
|
|
*pInHeaderSize = phs_decompress((PUCHAR)pvInputBuffer,
|
|
(PUCHAR)pvOutputBuffer, pstPhsRule, pOutHeaderSize);
|
|
|
|
pstPhsRule->PHSModifiedBytes += *pOutHeaderSize - *pInHeaderSize - 1;
|
|
|
|
pstPhsRule->PHSModifiedNumPackets++;
|
|
return STATUS_PHS_COMPRESSED;
|
|
}
|
|
|
|
/*
|
|
* Procedure: free_phs_serviceflow_rules
|
|
*
|
|
* Description: This routine is responsible for freeing memory allocated for PHS rules.
|
|
*
|
|
* Arguments:
|
|
* rules - ptr to S_SERVICEFLOW_TABLE structure.
|
|
*
|
|
* Returns:
|
|
* Does not return any value.
|
|
*/
|
|
static void free_phs_serviceflow_rules(struct bcm_phs_table *psServiceFlowRulesTable)
|
|
{
|
|
int i, j;
|
|
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "=======>\n");
|
|
|
|
if (psServiceFlowRulesTable) {
|
|
for (i = 0; i < MAX_SERVICEFLOWS; i++) {
|
|
struct bcm_phs_entry stServiceFlowEntry = psServiceFlowRulesTable->stSFList[i];
|
|
struct bcm_phs_classifier_table *pstClassifierRulesTable = stServiceFlowEntry.pstClassifierTable;
|
|
|
|
if (pstClassifierRulesTable) {
|
|
for (j = 0; j < MAX_PHSRULE_PER_SF; j++) {
|
|
if (pstClassifierRulesTable->stActivePhsRulesList[j].pstPhsRule) {
|
|
|
|
if (pstClassifierRulesTable->stActivePhsRulesList[j].pstPhsRule->u8RefCnt)
|
|
pstClassifierRulesTable->stActivePhsRulesList[j].pstPhsRule->u8RefCnt--;
|
|
|
|
if (0 == pstClassifierRulesTable->stActivePhsRulesList[j].pstPhsRule->u8RefCnt)
|
|
kfree(pstClassifierRulesTable->stActivePhsRulesList[j].pstPhsRule);
|
|
|
|
pstClassifierRulesTable->stActivePhsRulesList[j].pstPhsRule = NULL;
|
|
}
|
|
|
|
if (pstClassifierRulesTable->stOldPhsRulesList[j].pstPhsRule) {
|
|
|
|
if (pstClassifierRulesTable->stOldPhsRulesList[j].pstPhsRule->u8RefCnt)
|
|
pstClassifierRulesTable->stOldPhsRulesList[j].pstPhsRule->u8RefCnt--;
|
|
|
|
if (0 == pstClassifierRulesTable->stOldPhsRulesList[j].pstPhsRule->u8RefCnt)
|
|
kfree(pstClassifierRulesTable->stOldPhsRulesList[j].pstPhsRule);
|
|
|
|
pstClassifierRulesTable->stOldPhsRulesList[j].pstPhsRule = NULL;
|
|
}
|
|
}
|
|
kfree(pstClassifierRulesTable);
|
|
stServiceFlowEntry.pstClassifierTable = pstClassifierRulesTable = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
kfree(psServiceFlowRulesTable);
|
|
psServiceFlowRulesTable = NULL;
|
|
}
|
|
|
|
static bool ValidatePHSRuleComplete(IN struct bcm_phs_rule *psPhsRule)
|
|
{
|
|
if (psPhsRule) {
|
|
if (!psPhsRule->u8PHSI) {
|
|
/* PHSI is not valid */
|
|
return false;
|
|
}
|
|
|
|
if (!psPhsRule->u8PHSS) {
|
|
/* PHSS Is Undefined */
|
|
return false;
|
|
}
|
|
|
|
/* Check if PHSF is defines for the PHS Rule */
|
|
if (!psPhsRule->u8PHSFLength) /* If any part of PHSF is valid then Rule contains valid PHSF */
|
|
return false;
|
|
|
|
return TRUE;
|
|
} else
|
|
return false;
|
|
}
|
|
|
|
UINT GetServiceFlowEntry(IN struct bcm_phs_table *psServiceFlowTable,
|
|
IN B_UINT16 uiVcid,
|
|
struct bcm_phs_entry **ppstServiceFlowEntry)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < MAX_SERVICEFLOWS; i++) {
|
|
if (psServiceFlowTable->stSFList[i].bUsed) {
|
|
if (psServiceFlowTable->stSFList[i].uiVcid == uiVcid) {
|
|
*ppstServiceFlowEntry = &psServiceFlowTable->stSFList[i];
|
|
return i;
|
|
}
|
|
}
|
|
}
|
|
|
|
*ppstServiceFlowEntry = NULL;
|
|
return PHS_INVALID_TABLE_INDEX;
|
|
}
|
|
|
|
static UINT GetClassifierEntry(IN struct bcm_phs_classifier_table *pstClassifierTable,
|
|
IN B_UINT32 uiClsid, enum bcm_phs_classifier_context eClsContext,
|
|
OUT struct bcm_phs_classifier_entry **ppstClassifierEntry)
|
|
{
|
|
int i;
|
|
struct bcm_phs_classifier_entry *psClassifierRules = NULL;
|
|
|
|
for (i = 0; i < MAX_PHSRULE_PER_SF; i++) {
|
|
|
|
if (eClsContext == eActiveClassifierRuleContext)
|
|
psClassifierRules = &pstClassifierTable->stActivePhsRulesList[i];
|
|
else
|
|
psClassifierRules = &pstClassifierTable->stOldPhsRulesList[i];
|
|
|
|
if (psClassifierRules->bUsed) {
|
|
if (psClassifierRules->uiClassifierRuleId == uiClsid) {
|
|
*ppstClassifierEntry = psClassifierRules;
|
|
return i;
|
|
}
|
|
}
|
|
}
|
|
|
|
*ppstClassifierEntry = NULL;
|
|
return PHS_INVALID_TABLE_INDEX;
|
|
}
|
|
|
|
static UINT GetPhsRuleEntry(IN struct bcm_phs_classifier_table *pstClassifierTable,
|
|
IN B_UINT32 uiPHSI, enum bcm_phs_classifier_context eClsContext,
|
|
OUT struct bcm_phs_rule **ppstPhsRule)
|
|
{
|
|
int i;
|
|
struct bcm_phs_classifier_entry *pstClassifierRule = NULL;
|
|
|
|
for (i = 0; i < MAX_PHSRULE_PER_SF; i++) {
|
|
if (eClsContext == eActiveClassifierRuleContext)
|
|
pstClassifierRule = &pstClassifierTable->stActivePhsRulesList[i];
|
|
else
|
|
pstClassifierRule = &pstClassifierTable->stOldPhsRulesList[i];
|
|
|
|
if (pstClassifierRule->bUsed) {
|
|
if (pstClassifierRule->u8PHSI == uiPHSI) {
|
|
*ppstPhsRule = pstClassifierRule->pstPhsRule;
|
|
return i;
|
|
}
|
|
}
|
|
}
|
|
|
|
*ppstPhsRule = NULL;
|
|
return PHS_INVALID_TABLE_INDEX;
|
|
}
|
|
|
|
static UINT CreateSFToClassifierRuleMapping(IN B_UINT16 uiVcid, IN B_UINT16 uiClsId,
|
|
IN struct bcm_phs_table *psServiceFlowTable,
|
|
struct bcm_phs_rule *psPhsRule,
|
|
B_UINT8 u8AssociatedPHSI)
|
|
{
|
|
struct bcm_phs_classifier_table *psaClassifiertable = NULL;
|
|
UINT uiStatus = 0;
|
|
int iSfIndex;
|
|
bool bFreeEntryFound = false;
|
|
|
|
/* Check for a free entry in SFID table */
|
|
for (iSfIndex = 0; iSfIndex < MAX_SERVICEFLOWS; iSfIndex++) {
|
|
if (!psServiceFlowTable->stSFList[iSfIndex].bUsed) {
|
|
bFreeEntryFound = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!bFreeEntryFound)
|
|
return ERR_SFTABLE_FULL;
|
|
|
|
psaClassifiertable = psServiceFlowTable->stSFList[iSfIndex].pstClassifierTable;
|
|
uiStatus = CreateClassifierPHSRule(uiClsId, psaClassifiertable, psPhsRule,
|
|
eActiveClassifierRuleContext, u8AssociatedPHSI);
|
|
if (uiStatus == PHS_SUCCESS) {
|
|
/* Add entry at free index to the SF */
|
|
psServiceFlowTable->stSFList[iSfIndex].bUsed = TRUE;
|
|
psServiceFlowTable->stSFList[iSfIndex].uiVcid = uiVcid;
|
|
}
|
|
|
|
return uiStatus;
|
|
}
|
|
|
|
static UINT CreateClassiferToPHSRuleMapping(IN B_UINT16 uiVcid,
|
|
IN B_UINT16 uiClsId,
|
|
IN struct bcm_phs_entry *pstServiceFlowEntry,
|
|
struct bcm_phs_rule *psPhsRule,
|
|
B_UINT8 u8AssociatedPHSI)
|
|
{
|
|
struct bcm_phs_classifier_entry *pstClassifierEntry = NULL;
|
|
UINT uiStatus = PHS_SUCCESS;
|
|
UINT nClassifierIndex = 0;
|
|
struct bcm_phs_classifier_table *psaClassifiertable = NULL;
|
|
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
|
|
psaClassifiertable = pstServiceFlowEntry->pstClassifierTable;
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "==>");
|
|
|
|
/* Check if the supplied Classifier already exists */
|
|
nClassifierIndex = GetClassifierEntry(
|
|
pstServiceFlowEntry->pstClassifierTable,
|
|
uiClsId,
|
|
eActiveClassifierRuleContext,
|
|
&pstClassifierEntry);
|
|
|
|
if (nClassifierIndex == PHS_INVALID_TABLE_INDEX) {
|
|
/*
|
|
* The Classifier doesn't exist. So its a new classifier being added.
|
|
* Add new entry to associate PHS Rule to the Classifier
|
|
*/
|
|
|
|
uiStatus = CreateClassifierPHSRule(uiClsId, psaClassifiertable,
|
|
psPhsRule,
|
|
eActiveClassifierRuleContext,
|
|
u8AssociatedPHSI);
|
|
return uiStatus;
|
|
}
|
|
|
|
/*
|
|
* The Classifier exists.The PHS Rule for this classifier
|
|
* is being modified
|
|
*/
|
|
|
|
if (pstClassifierEntry->u8PHSI == psPhsRule->u8PHSI) {
|
|
if (pstClassifierEntry->pstPhsRule == NULL)
|
|
return ERR_PHS_INVALID_PHS_RULE;
|
|
|
|
/*
|
|
* This rule already exists if any fields are changed for this PHS
|
|
* rule update them.
|
|
*/
|
|
/* If any part of PHSF is valid then we update PHSF */
|
|
if (psPhsRule->u8PHSFLength) {
|
|
/* update PHSF */
|
|
memcpy(pstClassifierEntry->pstPhsRule->u8PHSF,
|
|
psPhsRule->u8PHSF, MAX_PHS_LENGTHS);
|
|
}
|
|
|
|
if (psPhsRule->u8PHSFLength) {
|
|
/* update PHSFLen */
|
|
pstClassifierEntry->pstPhsRule->u8PHSFLength = psPhsRule->u8PHSFLength;
|
|
}
|
|
|
|
if (psPhsRule->u8PHSMLength) {
|
|
/* update PHSM */
|
|
memcpy(pstClassifierEntry->pstPhsRule->u8PHSM,
|
|
psPhsRule->u8PHSM, MAX_PHS_LENGTHS);
|
|
}
|
|
|
|
if (psPhsRule->u8PHSMLength) {
|
|
/* update PHSM Len */
|
|
pstClassifierEntry->pstPhsRule->u8PHSMLength =
|
|
psPhsRule->u8PHSMLength;
|
|
}
|
|
|
|
if (psPhsRule->u8PHSS) {
|
|
/* update PHSS */
|
|
pstClassifierEntry->pstPhsRule->u8PHSS = psPhsRule->u8PHSS;
|
|
}
|
|
|
|
/* update PHSV */
|
|
pstClassifierEntry->pstPhsRule->u8PHSV = psPhsRule->u8PHSV;
|
|
} else {
|
|
/* A new rule is being set for this classifier. */
|
|
uiStatus = UpdateClassifierPHSRule(uiClsId, pstClassifierEntry,
|
|
psaClassifiertable, psPhsRule, u8AssociatedPHSI);
|
|
}
|
|
|
|
return uiStatus;
|
|
}
|
|
|
|
static UINT CreateClassifierPHSRule(IN B_UINT16 uiClsId,
|
|
struct bcm_phs_classifier_table *psaClassifiertable,
|
|
struct bcm_phs_rule *psPhsRule,
|
|
enum bcm_phs_classifier_context eClsContext,
|
|
B_UINT8 u8AssociatedPHSI)
|
|
{
|
|
UINT iClassifierIndex = 0;
|
|
bool bFreeEntryFound = false;
|
|
struct bcm_phs_classifier_entry *psClassifierRules = NULL;
|
|
UINT nStatus = PHS_SUCCESS;
|
|
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "Inside CreateClassifierPHSRule");
|
|
|
|
if (psaClassifiertable == NULL)
|
|
return ERR_INVALID_CLASSIFIERTABLE_FOR_SF;
|
|
|
|
if (eClsContext == eOldClassifierRuleContext) {
|
|
/*
|
|
* If An Old Entry for this classifier ID already exists in the
|
|
* old rules table replace it.
|
|
*/
|
|
|
|
iClassifierIndex =
|
|
GetClassifierEntry(psaClassifiertable, uiClsId,
|
|
eClsContext, &psClassifierRules);
|
|
|
|
if (iClassifierIndex != PHS_INVALID_TABLE_INDEX) {
|
|
/*
|
|
* The Classifier already exists in the old rules table
|
|
* Lets replace the old classifier with the new one.
|
|
*/
|
|
bFreeEntryFound = TRUE;
|
|
}
|
|
}
|
|
|
|
if (!bFreeEntryFound) {
|
|
/* Continue to search for a free location to add the rule */
|
|
for (iClassifierIndex = 0; iClassifierIndex <
|
|
MAX_PHSRULE_PER_SF; iClassifierIndex++) {
|
|
if (eClsContext == eActiveClassifierRuleContext)
|
|
psClassifierRules = &psaClassifiertable->stActivePhsRulesList[iClassifierIndex];
|
|
else
|
|
psClassifierRules = &psaClassifiertable->stOldPhsRulesList[iClassifierIndex];
|
|
|
|
if (!psClassifierRules->bUsed) {
|
|
bFreeEntryFound = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!bFreeEntryFound) {
|
|
|
|
if (eClsContext == eActiveClassifierRuleContext)
|
|
return ERR_CLSASSIFIER_TABLE_FULL;
|
|
else {
|
|
/* Lets replace the oldest rule if we are looking in old Rule table */
|
|
if (psaClassifiertable->uiOldestPhsRuleIndex >= MAX_PHSRULE_PER_SF)
|
|
psaClassifiertable->uiOldestPhsRuleIndex = 0;
|
|
|
|
iClassifierIndex = psaClassifiertable->uiOldestPhsRuleIndex;
|
|
psClassifierRules = &psaClassifiertable->stOldPhsRulesList[iClassifierIndex];
|
|
|
|
(psaClassifiertable->uiOldestPhsRuleIndex)++;
|
|
}
|
|
}
|
|
|
|
if (eClsContext == eOldClassifierRuleContext) {
|
|
|
|
if (psClassifierRules->pstPhsRule == NULL) {
|
|
|
|
psClassifierRules->pstPhsRule = kmalloc(sizeof(struct bcm_phs_rule), GFP_KERNEL);
|
|
|
|
if (NULL == psClassifierRules->pstPhsRule)
|
|
return ERR_PHSRULE_MEMALLOC_FAIL;
|
|
}
|
|
|
|
psClassifierRules->bUsed = TRUE;
|
|
psClassifierRules->uiClassifierRuleId = uiClsId;
|
|
psClassifierRules->u8PHSI = psPhsRule->u8PHSI;
|
|
psClassifierRules->bUnclassifiedPHSRule = psPhsRule->bUnclassifiedPHSRule;
|
|
|
|
/* Update The PHS rule */
|
|
memcpy(psClassifierRules->pstPhsRule, psPhsRule, sizeof(struct bcm_phs_rule));
|
|
} else
|
|
nStatus = UpdateClassifierPHSRule(uiClsId, psClassifierRules,
|
|
psaClassifiertable, psPhsRule, u8AssociatedPHSI);
|
|
|
|
return nStatus;
|
|
}
|
|
|
|
static UINT UpdateClassifierPHSRule(IN B_UINT16 uiClsId,
|
|
IN struct bcm_phs_classifier_entry *pstClassifierEntry,
|
|
struct bcm_phs_classifier_table *psaClassifiertable,
|
|
struct bcm_phs_rule *psPhsRule,
|
|
B_UINT8 u8AssociatedPHSI)
|
|
{
|
|
struct bcm_phs_rule *pstAddPhsRule = NULL;
|
|
UINT nPhsRuleIndex = 0;
|
|
bool bPHSRuleOrphaned = false;
|
|
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
|
|
psPhsRule->u8RefCnt = 0;
|
|
|
|
/* Step 1 Deref Any Exisiting PHS Rule in this classifier Entry */
|
|
bPHSRuleOrphaned = DerefPhsRule(uiClsId, psaClassifiertable,
|
|
pstClassifierEntry->pstPhsRule);
|
|
|
|
/* Step 2 Search if there is a PHS Rule with u8AssociatedPHSI in Classifier table for this SF */
|
|
nPhsRuleIndex = GetPhsRuleEntry(psaClassifiertable, u8AssociatedPHSI,
|
|
eActiveClassifierRuleContext, &pstAddPhsRule);
|
|
if (PHS_INVALID_TABLE_INDEX == nPhsRuleIndex) {
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nAdding New PHSRuleEntry For Classifier");
|
|
|
|
if (psPhsRule->u8PHSI == 0) {
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nError PHSI is Zero\n");
|
|
return ERR_PHS_INVALID_PHS_RULE;
|
|
}
|
|
|
|
/* Step 2.a PHS Rule Does Not Exist .Create New PHS Rule for uiClsId */
|
|
if (false == bPHSRuleOrphaned) {
|
|
|
|
pstClassifierEntry->pstPhsRule = kmalloc(sizeof(struct bcm_phs_rule), GFP_KERNEL);
|
|
if (NULL == pstClassifierEntry->pstPhsRule)
|
|
return ERR_PHSRULE_MEMALLOC_FAIL;
|
|
}
|
|
memcpy(pstClassifierEntry->pstPhsRule, psPhsRule, sizeof(struct bcm_phs_rule));
|
|
} else {
|
|
/* Step 2.b PHS Rule Exists Tie uiClsId with the existing PHS Rule */
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nTying Classifier to Existing PHS Rule");
|
|
if (bPHSRuleOrphaned) {
|
|
kfree(pstClassifierEntry->pstPhsRule);
|
|
pstClassifierEntry->pstPhsRule = NULL;
|
|
}
|
|
pstClassifierEntry->pstPhsRule = pstAddPhsRule;
|
|
}
|
|
|
|
pstClassifierEntry->bUsed = TRUE;
|
|
pstClassifierEntry->u8PHSI = pstClassifierEntry->pstPhsRule->u8PHSI;
|
|
pstClassifierEntry->uiClassifierRuleId = uiClsId;
|
|
pstClassifierEntry->pstPhsRule->u8RefCnt++;
|
|
pstClassifierEntry->bUnclassifiedPHSRule = pstClassifierEntry->pstPhsRule->bUnclassifiedPHSRule;
|
|
|
|
return PHS_SUCCESS;
|
|
}
|
|
|
|
static bool DerefPhsRule(IN B_UINT16 uiClsId, struct bcm_phs_classifier_table *psaClassifiertable, struct bcm_phs_rule *pstPhsRule)
|
|
{
|
|
if (pstPhsRule == NULL)
|
|
return false;
|
|
|
|
if (pstPhsRule->u8RefCnt)
|
|
pstPhsRule->u8RefCnt--;
|
|
|
|
if (0 == pstPhsRule->u8RefCnt) {
|
|
/*
|
|
* if(pstPhsRule->u8PHSI)
|
|
* Store the currently active rule into the old rules list
|
|
* CreateClassifierPHSRule(uiClsId,psaClassifiertable,pstPhsRule,eOldClassifierRuleContext,pstPhsRule->u8PHSI);
|
|
*/
|
|
return TRUE;
|
|
} else
|
|
return false;
|
|
}
|
|
|
|
void DumpPhsRules(struct bcm_phs_extension *pDeviceExtension)
|
|
{
|
|
int i, j, k, l;
|
|
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "\n Dumping PHS Rules :\n");
|
|
|
|
for (i = 0; i < MAX_SERVICEFLOWS; i++) {
|
|
|
|
struct bcm_phs_entry stServFlowEntry =
|
|
pDeviceExtension->pstServiceFlowPhsRulesTable->stSFList[i];
|
|
if (stServFlowEntry.bUsed) {
|
|
|
|
for (j = 0; j < MAX_PHSRULE_PER_SF; j++) {
|
|
|
|
for (l = 0; l < 2; l++) {
|
|
struct bcm_phs_classifier_entry stClsEntry;
|
|
|
|
if (l == 0) {
|
|
stClsEntry = stServFlowEntry.pstClassifierTable->stActivePhsRulesList[j];
|
|
if (stClsEntry.bUsed)
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n Active PHS Rule :\n");
|
|
} else {
|
|
stClsEntry = stServFlowEntry.pstClassifierTable->stOldPhsRulesList[j];
|
|
if (stClsEntry.bUsed)
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n Old PHS Rule :\n");
|
|
}
|
|
|
|
if (stClsEntry.bUsed) {
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "\n VCID : %#X", stServFlowEntry.uiVcid);
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n ClassifierID : %#X", stClsEntry.uiClassifierRuleId);
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSRuleID : %#X", stClsEntry.u8PHSI);
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n****************PHS Rule********************\n");
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSI : %#X", stClsEntry.pstPhsRule->u8PHSI);
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSFLength : %#X ", stClsEntry.pstPhsRule->u8PHSFLength);
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSF : ");
|
|
|
|
for (k = 0 ; k < stClsEntry.pstPhsRule->u8PHSFLength; k++)
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "%#X ", stClsEntry.pstPhsRule->u8PHSF[k]);
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSMLength : %#X", stClsEntry.pstPhsRule->u8PHSMLength);
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSM :");
|
|
|
|
for (k = 0; k < stClsEntry.pstPhsRule->u8PHSMLength; k++)
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "%#X ", stClsEntry.pstPhsRule->u8PHSM[k]);
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSS : %#X ", stClsEntry.pstPhsRule->u8PHSS);
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSV : %#X", stClsEntry.pstPhsRule->u8PHSV);
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "\n********************************************\n");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Procedure: phs_decompress
|
|
*
|
|
* Description: This routine restores the static fields within the packet.
|
|
*
|
|
* Arguments:
|
|
* in_buf - ptr to incoming packet buffer.
|
|
* out_buf - ptr to output buffer where the suppressed header is copied.
|
|
* decomp_phs_rules - ptr to PHS rule.
|
|
* header_size - ptr to field which holds the phss or phsf_length.
|
|
*
|
|
* Returns:
|
|
* size -The number of bytes of dynamic fields present with in the incoming packet
|
|
* header.
|
|
* 0 -If PHS rule is NULL.If PHSI is 0 indicateing packet as uncompressed.
|
|
*/
|
|
static int phs_decompress(unsigned char *in_buf,
|
|
unsigned char *out_buf,
|
|
struct bcm_phs_rule *decomp_phs_rules,
|
|
UINT *header_size)
|
|
{
|
|
int phss, size = 0;
|
|
struct bcm_phs_rule *tmp_memb;
|
|
int bit, i = 0;
|
|
unsigned char *phsf, *phsm;
|
|
int in_buf_len = *header_size - 1;
|
|
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
|
|
in_buf++;
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_RECEIVE, DBG_LVL_ALL, "====>\n");
|
|
*header_size = 0;
|
|
|
|
if ((decomp_phs_rules == NULL))
|
|
return 0;
|
|
|
|
tmp_memb = decomp_phs_rules;
|
|
/*
|
|
* BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_RECEIVE,DBG_LVL_ALL,"\nDECOMP:In phs_decompress PHSI 1 %d",phsi));
|
|
* header_size = tmp_memb->u8PHSFLength;
|
|
*/
|
|
phss = tmp_memb->u8PHSS;
|
|
phsf = tmp_memb->u8PHSF;
|
|
phsm = tmp_memb->u8PHSM;
|
|
|
|
if (phss > MAX_PHS_LENGTHS)
|
|
phss = MAX_PHS_LENGTHS;
|
|
|
|
/*
|
|
* BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_RECEIVE,DBG_LVL_ALL,"\nDECOMP:
|
|
* In phs_decompress PHSI %d phss %d index %d",phsi,phss,index));
|
|
*/
|
|
while ((phss > 0) && (size < in_buf_len)) {
|
|
bit = ((*phsm << i) & SUPPRESS);
|
|
|
|
if (bit == SUPPRESS) {
|
|
*out_buf = *phsf;
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_RECEIVE, DBG_LVL_ALL, "\nDECOMP:In phss %d phsf %d ouput %d",
|
|
phss, *phsf, *out_buf);
|
|
} else {
|
|
*out_buf = *in_buf;
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_RECEIVE, DBG_LVL_ALL, "\nDECOMP:In phss %d input %d ouput %d",
|
|
phss, *in_buf, *out_buf);
|
|
in_buf++;
|
|
size++;
|
|
}
|
|
out_buf++;
|
|
phsf++;
|
|
phss--;
|
|
i++;
|
|
*header_size = *header_size + 1;
|
|
|
|
if (i > MAX_NO_BIT) {
|
|
i = 0;
|
|
phsm++;
|
|
}
|
|
}
|
|
|
|
return size;
|
|
}
|
|
|
|
/*
|
|
* Procedure: phs_compress
|
|
*
|
|
* Description: This routine suppresses the static fields within the packet.Before
|
|
* that it will verify the fields to be suppressed with the corresponding fields in the
|
|
* phsf. For verification it checks the phsv field of PHS rule. If set and verification
|
|
* succeeds it suppresses the field.If any one static field is found different none of
|
|
* the static fields are suppressed then the packet is sent as uncompressed packet with
|
|
* phsi=0.
|
|
*
|
|
* Arguments:
|
|
* phs_rule - ptr to PHS rule.
|
|
* in_buf - ptr to incoming packet buffer.
|
|
* out_buf - ptr to output buffer where the suppressed header is copied.
|
|
* header_size - ptr to field which holds the phss.
|
|
*
|
|
* Returns:
|
|
* size-The number of bytes copied into the output buffer i.e dynamic fields
|
|
* 0 -If PHS rule is NULL.If PHSV field is not set.If the verification fails.
|
|
*/
|
|
static int phs_compress(struct bcm_phs_rule *phs_rule,
|
|
unsigned char *in_buf,
|
|
unsigned char *out_buf,
|
|
UINT *header_size,
|
|
UINT *new_header_size)
|
|
{
|
|
unsigned char *old_addr = out_buf;
|
|
int suppress = 0;
|
|
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
|
|
if (phs_rule == NULL) {
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL, "\nphs_compress(): phs_rule null!");
|
|
*out_buf = ZERO_PHSI;
|
|
return STATUS_PHS_NOCOMPRESSION;
|
|
}
|
|
|
|
if (phs_rule->u8PHSS <= *new_header_size)
|
|
*header_size = phs_rule->u8PHSS;
|
|
else
|
|
*header_size = *new_header_size;
|
|
|
|
/* To copy PHSI */
|
|
out_buf++;
|
|
suppress = verify_suppress_phsf(in_buf, out_buf, phs_rule->u8PHSF,
|
|
phs_rule->u8PHSM, phs_rule->u8PHSS,
|
|
phs_rule->u8PHSV, new_header_size);
|
|
|
|
if (suppress == STATUS_PHS_COMPRESSED) {
|
|
*old_addr = (unsigned char)phs_rule->u8PHSI;
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL, "\nCOMP:In phs_compress phsi %d", phs_rule->u8PHSI);
|
|
} else {
|
|
*old_addr = ZERO_PHSI;
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL, "\nCOMP:In phs_compress PHSV Verification failed");
|
|
}
|
|
|
|
return suppress;
|
|
}
|
|
|
|
/*
|
|
* Procedure: verify_suppress_phsf
|
|
*
|
|
* Description: This routine verifies the fields of the packet and if all the
|
|
* static fields are equal it adds the phsi of that PHS rule.If any static
|
|
* field differs it woun't suppress any field.
|
|
*
|
|
* Arguments:
|
|
* rules_set - ptr to classifier_rules.
|
|
* in_buffer - ptr to incoming packet buffer.
|
|
* out_buffer - ptr to output buffer where the suppressed header is copied.
|
|
* phsf - ptr to phsf.
|
|
* phsm - ptr to phsm.
|
|
* phss - variable holding phss.
|
|
*
|
|
* Returns:
|
|
* size-The number of bytes copied into the output buffer i.e dynamic fields.
|
|
* 0 -Packet has failed the verification.
|
|
*/
|
|
static int verify_suppress_phsf(unsigned char *in_buffer,
|
|
unsigned char *out_buffer,
|
|
unsigned char *phsf,
|
|
unsigned char *phsm,
|
|
unsigned int phss,
|
|
unsigned int phsv,
|
|
UINT *new_header_size)
|
|
{
|
|
unsigned int size = 0;
|
|
int bit, i = 0;
|
|
struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
|
|
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL, "\nCOMP:In verify_phsf PHSM - 0x%X", *phsm);
|
|
|
|
if (phss > (*new_header_size))
|
|
phss = *new_header_size;
|
|
|
|
while (phss > 0) {
|
|
bit = ((*phsm << i) & SUPPRESS);
|
|
if (bit == SUPPRESS) {
|
|
if (*in_buffer != *phsf) {
|
|
if (phsv == VERIFY) {
|
|
BCM_DEBUG_PRINT(Adapter,
|
|
DBG_TYPE_OTHERS,
|
|
PHS_SEND,
|
|
DBG_LVL_ALL,
|
|
"\nCOMP:In verify_phsf failed for field %d buf %d phsf %d",
|
|
phss,
|
|
*in_buffer,
|
|
*phsf);
|
|
return STATUS_PHS_NOCOMPRESSION;
|
|
}
|
|
} else
|
|
BCM_DEBUG_PRINT(Adapter,
|
|
DBG_TYPE_OTHERS,
|
|
PHS_SEND,
|
|
DBG_LVL_ALL,
|
|
"\nCOMP:In verify_phsf success for field %d buf %d phsf %d",
|
|
phss,
|
|
*in_buffer,
|
|
*phsf);
|
|
} else {
|
|
*out_buffer = *in_buffer;
|
|
BCM_DEBUG_PRINT(Adapter,
|
|
DBG_TYPE_OTHERS,
|
|
PHS_SEND,
|
|
DBG_LVL_ALL,
|
|
"\nCOMP:In copying_header input %d out %d",
|
|
*in_buffer,
|
|
*out_buffer);
|
|
out_buffer++;
|
|
size++;
|
|
}
|
|
|
|
in_buffer++;
|
|
phsf++;
|
|
phss--;
|
|
i++;
|
|
|
|
if (i > MAX_NO_BIT) {
|
|
i = 0;
|
|
phsm++;
|
|
}
|
|
}
|
|
BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL, "\nCOMP:In verify_phsf success");
|
|
*new_header_size = size;
|
|
return STATUS_PHS_COMPRESSED;
|
|
}
|