Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1 | #include "headers.h" |
| 2 | |
Stephen Hemminger | 9dd47ee | 2010-11-01 12:24:00 -0400 | [diff] [blame] | 3 | static UINT CreateSFToClassifierRuleMapping(B_UINT16 uiVcid,B_UINT16 uiClsId,S_SERVICEFLOW_TABLE *psServiceFlowTable,S_PHS_RULE *psPhsRule,B_UINT8 u8AssociatedPHSI); |
| 4 | |
| 5 | static UINT CreateClassiferToPHSRuleMapping(B_UINT16 uiVcid,B_UINT16 uiClsId,S_SERVICEFLOW_ENTRY *pstServiceFlowEntry,S_PHS_RULE *psPhsRule,B_UINT8 u8AssociatedPHSI); |
| 6 | |
| 7 | static UINT CreateClassifierPHSRule(B_UINT16 uiClsId,S_CLASSIFIER_TABLE *psaClassifiertable ,S_PHS_RULE *psPhsRule,E_CLASSIFIER_ENTRY_CONTEXT eClsContext,B_UINT8 u8AssociatedPHSI); |
| 8 | |
| 9 | static UINT UpdateClassifierPHSRule(B_UINT16 uiClsId,S_CLASSIFIER_ENTRY *pstClassifierEntry,S_CLASSIFIER_TABLE *psaClassifiertable ,S_PHS_RULE *psPhsRule,B_UINT8 u8AssociatedPHSI); |
| 10 | |
| 11 | static BOOLEAN ValidatePHSRuleComplete(S_PHS_RULE *psPhsRule); |
| 12 | |
| 13 | static BOOLEAN DerefPhsRule(B_UINT16 uiClsId,S_CLASSIFIER_TABLE *psaClassifiertable,S_PHS_RULE *pstPhsRule); |
| 14 | |
| 15 | static UINT GetClassifierEntry(S_CLASSIFIER_TABLE *pstClassifierTable,B_UINT32 uiClsid,E_CLASSIFIER_ENTRY_CONTEXT eClsContext, S_CLASSIFIER_ENTRY **ppstClassifierEntry); |
| 16 | |
| 17 | static UINT GetPhsRuleEntry(S_CLASSIFIER_TABLE *pstClassifierTable,B_UINT32 uiPHSI,E_CLASSIFIER_ENTRY_CONTEXT eClsContext,S_PHS_RULE **ppstPhsRule); |
| 18 | |
| 19 | static void free_phs_serviceflow_rules(S_SERVICEFLOW_TABLE *psServiceFlowRulesTable); |
| 20 | |
| 21 | static int phs_compress(S_PHS_RULE *phs_members,unsigned char *in_buf, |
| 22 | unsigned char *out_buf,unsigned int *header_size,UINT *new_header_size ); |
| 23 | |
| 24 | |
| 25 | static int verify_suppress_phsf(unsigned char *in_buffer,unsigned char *out_buffer, |
| 26 | unsigned char *phsf,unsigned char *phsm,unsigned int phss,unsigned int phsv,UINT *new_header_size ); |
| 27 | |
| 28 | static int phs_decompress(unsigned char *in_buf,unsigned char *out_buf,\ |
| 29 | S_PHS_RULE *phs_rules,UINT *header_size); |
| 30 | |
| 31 | |
| 32 | static ULONG PhsCompress(void* pvContext, |
| 33 | B_UINT16 uiVcid, |
| 34 | B_UINT16 uiClsId, |
| 35 | void *pvInputBuffer, |
| 36 | void *pvOutputBuffer, |
| 37 | UINT *pOldHeaderSize, |
| 38 | UINT *pNewHeaderSize ); |
| 39 | |
| 40 | static ULONG PhsDeCompress(void* pvContext, |
| 41 | B_UINT16 uiVcid, |
| 42 | void *pvInputBuffer, |
| 43 | void *pvOutputBuffer, |
| 44 | UINT *pInHeaderSize, |
| 45 | UINT *pOutHeaderSize); |
| 46 | |
| 47 | |
| 48 | |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 49 | #define IN |
| 50 | #define OUT |
| 51 | |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 52 | /* |
| 53 | Function: PHSTransmit |
| 54 | |
| 55 | Description: This routine handle PHS(Payload Header Suppression for Tx path. |
| 56 | It extracts a fragment of the NDIS_PACKET containing the header |
| 57 | to be suppressed.It then supresses the header by invoking PHS exported compress routine. |
| 58 | The header data after supression is copied back to the NDIS_PACKET. |
| 59 | |
| 60 | |
| 61 | Input parameters: IN PMINI_ADAPTER Adapter - Miniport Adapter Context |
| 62 | IN Packet - NDIS packet containing data to be transmitted |
| 63 | IN USHORT Vcid - vcid pertaining to connection on which the packet is being sent.Used to |
| 64 | identify PHS rule to be applied. |
| 65 | B_UINT16 uiClassifierRuleID - Classifier Rule ID |
| 66 | BOOLEAN bHeaderSuppressionEnabled - indicates if header suprression is enabled for SF. |
| 67 | |
| 68 | Return: STATUS_SUCCESS - If the send was successful. |
| 69 | Other - If an error occured. |
| 70 | */ |
| 71 | |
| 72 | int PHSTransmit(PMINI_ADAPTER Adapter, |
| 73 | struct sk_buff **pPacket, |
| 74 | USHORT Vcid, |
| 75 | B_UINT16 uiClassifierRuleID, |
| 76 | BOOLEAN bHeaderSuppressionEnabled, |
| 77 | UINT *PacketLen, |
| 78 | UCHAR bEthCSSupport) |
| 79 | { |
| 80 | |
| 81 | //PHS Sepcific |
| 82 | UINT unPHSPktHdrBytesCopied = 0; |
| 83 | UINT unPhsOldHdrSize = 0; |
| 84 | UINT unPHSNewPktHeaderLen = 0; |
| 85 | /* Pointer to PHS IN Hdr Buffer */ |
| 86 | PUCHAR pucPHSPktHdrInBuf = |
| 87 | Adapter->stPhsTxContextInfo.ucaHdrSupressionInBuf; |
| 88 | /* Pointer to PHS OUT Hdr Buffer */ |
| 89 | PUCHAR pucPHSPktHdrOutBuf = |
| 90 | Adapter->stPhsTxContextInfo.ucaHdrSupressionOutBuf; |
| 91 | UINT usPacketType; |
| 92 | UINT BytesToRemove=0; |
| 93 | BOOLEAN bPHSI = 0; |
| 94 | LONG ulPhsStatus = 0; |
| 95 | UINT numBytesCompressed = 0; |
| 96 | struct sk_buff *newPacket = NULL; |
| 97 | struct sk_buff *Packet = *pPacket; |
| 98 | |
| 99 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL, "In PHSTransmit"); |
| 100 | |
| 101 | if(!bEthCSSupport) |
| 102 | BytesToRemove=ETH_HLEN; |
| 103 | /* |
| 104 | Accumulate the header upto the size we support supression |
| 105 | from NDIS packet |
| 106 | */ |
| 107 | |
| 108 | usPacketType=((struct ethhdr *)(Packet->data))->h_proto; |
| 109 | |
| 110 | |
| 111 | pucPHSPktHdrInBuf = Packet->data + BytesToRemove; |
| 112 | //considering data after ethernet header |
| 113 | if((*PacketLen - BytesToRemove) < MAX_PHS_LENGTHS) |
| 114 | { |
| 115 | |
| 116 | unPHSPktHdrBytesCopied = (*PacketLen - BytesToRemove); |
| 117 | } |
| 118 | else |
| 119 | { |
| 120 | unPHSPktHdrBytesCopied = MAX_PHS_LENGTHS; |
| 121 | } |
| 122 | |
| 123 | if( (unPHSPktHdrBytesCopied > 0 ) && |
| 124 | (unPHSPktHdrBytesCopied <= MAX_PHS_LENGTHS)) |
| 125 | { |
| 126 | |
| 127 | |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 128 | // Step 2 Supress Header using PHS and fill into intermediate ucaPHSPktHdrOutBuf. |
| 129 | // Suppress only if IP Header and PHS Enabled For the Service Flow |
| 130 | if(((usPacketType == ETHERNET_FRAMETYPE_IPV4) || |
| 131 | (usPacketType == ETHERNET_FRAMETYPE_IPV6)) && |
| 132 | (bHeaderSuppressionEnabled)) |
| 133 | { |
| 134 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"\nTrying to PHS Compress Using Classifier rule 0x%X",uiClassifierRuleID); |
| 135 | |
| 136 | |
| 137 | unPHSNewPktHeaderLen = unPHSPktHdrBytesCopied; |
| 138 | ulPhsStatus = PhsCompress(&Adapter->stBCMPhsContext, |
| 139 | Vcid, |
| 140 | uiClassifierRuleID, |
| 141 | pucPHSPktHdrInBuf, |
| 142 | pucPHSPktHdrOutBuf, |
| 143 | &unPhsOldHdrSize, |
| 144 | &unPHSNewPktHeaderLen); |
| 145 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"\nPHS Old header Size : %d New Header Size %d\n",unPhsOldHdrSize,unPHSNewPktHeaderLen); |
| 146 | |
| 147 | if(unPHSNewPktHeaderLen == unPhsOldHdrSize) |
| 148 | { |
| 149 | if( ulPhsStatus == STATUS_PHS_COMPRESSED) |
| 150 | bPHSI = *pucPHSPktHdrOutBuf; |
| 151 | ulPhsStatus = STATUS_PHS_NOCOMPRESSION; |
| 152 | } |
| 153 | |
| 154 | if( ulPhsStatus == STATUS_PHS_COMPRESSED) |
| 155 | { |
| 156 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"PHS Sending packet Compressed"); |
| 157 | |
| 158 | if(skb_cloned(Packet)) |
| 159 | { |
| 160 | newPacket = skb_copy(Packet, GFP_ATOMIC); |
| 161 | |
| 162 | if(newPacket == NULL) |
| 163 | return STATUS_FAILURE; |
| 164 | |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 165 | dev_kfree_skb(Packet); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 166 | *pPacket = Packet = newPacket; |
| 167 | pucPHSPktHdrInBuf = Packet->data + BytesToRemove; |
| 168 | } |
| 169 | |
| 170 | numBytesCompressed = unPhsOldHdrSize - (unPHSNewPktHeaderLen+PHSI_LEN); |
| 171 | |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 172 | memcpy(pucPHSPktHdrInBuf + numBytesCompressed, pucPHSPktHdrOutBuf, unPHSNewPktHeaderLen + PHSI_LEN); |
| 173 | memcpy(Packet->data + numBytesCompressed, Packet->data, BytesToRemove); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 174 | skb_pull(Packet, numBytesCompressed); |
| 175 | |
| 176 | return STATUS_SUCCESS; |
| 177 | } |
| 178 | |
| 179 | else |
| 180 | { |
| 181 | //if one byte headroom is not available, increase it through skb_cow |
| 182 | if(!(skb_headroom(Packet) > 0)) |
| 183 | { |
| 184 | if(skb_cow(Packet, 1)) |
| 185 | { |
| 186 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0, "SKB Cow Failed\n"); |
| 187 | return STATUS_FAILURE; |
| 188 | } |
| 189 | } |
| 190 | skb_push(Packet, 1); |
| 191 | |
| 192 | // CAUTION: The MAC Header is getting corrupted here for IP CS - can be saved by copying 14 Bytes. not needed .... hence corrupting it. |
| 193 | *(Packet->data + BytesToRemove) = bPHSI; |
| 194 | return STATUS_SUCCESS; |
| 195 | } |
| 196 | } |
| 197 | else |
| 198 | { |
| 199 | if(!bHeaderSuppressionEnabled) |
| 200 | { |
| 201 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"\nHeader Suppression Disabled For SF: No PHS\n"); |
| 202 | } |
| 203 | |
| 204 | return STATUS_SUCCESS; |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | //BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"PHSTransmit : Dumping data packet After PHS"); |
| 209 | return STATUS_SUCCESS; |
| 210 | } |
| 211 | |
Joe Perches | ceeb6fe | 2011-06-23 11:40:18 -0700 | [diff] [blame] | 212 | int PHSReceive(PMINI_ADAPTER Adapter, |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 213 | USHORT usVcid, |
| 214 | struct sk_buff *packet, |
| 215 | UINT *punPacketLen, |
| 216 | UCHAR *pucEthernetHdr, |
| 217 | UINT bHeaderSuppressionEnabled) |
| 218 | { |
| 219 | u32 nStandardPktHdrLen = 0; |
| 220 | u32 nTotalsupressedPktHdrBytes = 0; |
| 221 | int ulPhsStatus = 0; |
| 222 | PUCHAR pucInBuff = NULL ; |
| 223 | UINT TotalBytesAdded = 0; |
| 224 | if(!bHeaderSuppressionEnabled) |
| 225 | { |
Joe Perches | ceeb6fe | 2011-06-23 11:40:18 -0700 | [diff] [blame] | 226 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_RECEIVE,DBG_LVL_ALL,"\nPhs Disabled for incoming packet"); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 227 | return ulPhsStatus; |
| 228 | } |
| 229 | |
| 230 | pucInBuff = packet->data; |
| 231 | |
| 232 | //Restore PHS suppressed header |
| 233 | nStandardPktHdrLen = packet->len; |
| 234 | ulPhsStatus = PhsDeCompress(&Adapter->stBCMPhsContext, |
| 235 | usVcid, |
| 236 | pucInBuff, |
| 237 | Adapter->ucaPHSPktRestoreBuf, |
| 238 | &nTotalsupressedPktHdrBytes, |
| 239 | &nStandardPktHdrLen); |
| 240 | |
Joe Perches | ceeb6fe | 2011-06-23 11:40:18 -0700 | [diff] [blame] | 241 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_RECEIVE,DBG_LVL_ALL,"\nSupressed PktHdrLen : 0x%x Restored PktHdrLen : 0x%x", |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 242 | nTotalsupressedPktHdrBytes,nStandardPktHdrLen); |
| 243 | |
| 244 | if(ulPhsStatus != STATUS_PHS_COMPRESSED) |
| 245 | { |
| 246 | skb_pull(packet, 1); |
| 247 | return STATUS_SUCCESS; |
| 248 | } |
| 249 | else |
| 250 | { |
| 251 | TotalBytesAdded = nStandardPktHdrLen - nTotalsupressedPktHdrBytes - PHSI_LEN; |
| 252 | if(TotalBytesAdded) |
| 253 | { |
| 254 | if(skb_headroom(packet) >= (SKB_RESERVE_ETHERNET_HEADER + TotalBytesAdded)) |
| 255 | skb_push(packet, TotalBytesAdded); |
| 256 | else |
| 257 | { |
| 258 | if(skb_cow(packet, skb_headroom(packet) + TotalBytesAdded)) |
| 259 | { |
| 260 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0, "cow failed in receive\n"); |
| 261 | return STATUS_FAILURE; |
| 262 | } |
| 263 | |
| 264 | skb_push(packet, TotalBytesAdded); |
| 265 | } |
| 266 | } |
| 267 | |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 268 | memcpy(packet->data, Adapter->ucaPHSPktRestoreBuf, nStandardPktHdrLen); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 269 | } |
| 270 | |
| 271 | return STATUS_SUCCESS; |
| 272 | } |
| 273 | |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 274 | void DumpFullPacket(UCHAR *pBuf,UINT nPktLen) |
| 275 | { |
| 276 | PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev); |
| 277 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL,"Dumping Data Packet"); |
| 278 | BCM_DEBUG_PRINT_BUFFER(Adapter,DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL,pBuf,nPktLen); |
| 279 | } |
| 280 | |
| 281 | //----------------------------------------------------------------------------- |
| 282 | // Procedure: phs_init |
| 283 | // |
| 284 | // Description: This routine is responsible for allocating memory for classifier and |
| 285 | // PHS rules. |
| 286 | // |
| 287 | // Arguments: |
| 288 | // pPhsdeviceExtension - ptr to Device extension containing PHS Classifier rules and PHS Rules , RX, TX buffer etc |
| 289 | // |
| 290 | // Returns: |
| 291 | // TRUE(1) -If allocation of memory was success full. |
| 292 | // FALSE -If allocation of memory fails. |
| 293 | //----------------------------------------------------------------------------- |
| 294 | int phs_init(PPHS_DEVICE_EXTENSION pPhsdeviceExtension,PMINI_ADAPTER Adapter) |
| 295 | { |
| 296 | int i; |
| 297 | S_SERVICEFLOW_TABLE *pstServiceFlowTable; |
| 298 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nPHS:phs_init function "); |
| 299 | |
| 300 | if(pPhsdeviceExtension->pstServiceFlowPhsRulesTable) |
| 301 | return -EINVAL; |
| 302 | |
| 303 | pPhsdeviceExtension->pstServiceFlowPhsRulesTable = |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 304 | kzalloc(sizeof(S_SERVICEFLOW_TABLE), GFP_KERNEL); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 305 | |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 306 | if(!pPhsdeviceExtension->pstServiceFlowPhsRulesTable) |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 307 | { |
| 308 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nAllocation ServiceFlowPhsRulesTable failed"); |
| 309 | return -ENOMEM; |
| 310 | } |
| 311 | |
| 312 | pstServiceFlowTable = pPhsdeviceExtension->pstServiceFlowPhsRulesTable; |
| 313 | for(i=0;i<MAX_SERVICEFLOWS;i++) |
| 314 | { |
| 315 | S_SERVICEFLOW_ENTRY sServiceFlow = pstServiceFlowTable->stSFList[i]; |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 316 | sServiceFlow.pstClassifierTable = kzalloc(sizeof(S_CLASSIFIER_TABLE), GFP_KERNEL); |
| 317 | if(!sServiceFlow.pstClassifierTable) |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 318 | { |
| 319 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nAllocation failed"); |
| 320 | free_phs_serviceflow_rules(pPhsdeviceExtension-> |
| 321 | pstServiceFlowPhsRulesTable); |
| 322 | pPhsdeviceExtension->pstServiceFlowPhsRulesTable = NULL; |
| 323 | return -ENOMEM; |
| 324 | } |
| 325 | } |
| 326 | |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 327 | pPhsdeviceExtension->CompressedTxBuffer = kmalloc(PHS_BUFFER_SIZE, GFP_KERNEL); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 328 | |
| 329 | if(pPhsdeviceExtension->CompressedTxBuffer == NULL) |
| 330 | { |
| 331 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nAllocation failed"); |
| 332 | free_phs_serviceflow_rules(pPhsdeviceExtension->pstServiceFlowPhsRulesTable); |
| 333 | pPhsdeviceExtension->pstServiceFlowPhsRulesTable = NULL; |
| 334 | return -ENOMEM; |
| 335 | } |
| 336 | |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 337 | pPhsdeviceExtension->UnCompressedRxBuffer = kmalloc(PHS_BUFFER_SIZE, GFP_KERNEL); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 338 | if(pPhsdeviceExtension->UnCompressedRxBuffer == NULL) |
| 339 | { |
| 340 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nAllocation failed"); |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 341 | kfree(pPhsdeviceExtension->CompressedTxBuffer); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 342 | free_phs_serviceflow_rules(pPhsdeviceExtension->pstServiceFlowPhsRulesTable); |
| 343 | pPhsdeviceExtension->pstServiceFlowPhsRulesTable = NULL; |
| 344 | return -ENOMEM; |
| 345 | } |
| 346 | |
| 347 | |
| 348 | |
| 349 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\n phs_init Successfull"); |
| 350 | return STATUS_SUCCESS; |
| 351 | } |
| 352 | |
| 353 | |
| 354 | int PhsCleanup(IN PPHS_DEVICE_EXTENSION pPHSDeviceExt) |
| 355 | { |
| 356 | if(pPHSDeviceExt->pstServiceFlowPhsRulesTable) |
| 357 | { |
| 358 | free_phs_serviceflow_rules(pPHSDeviceExt->pstServiceFlowPhsRulesTable); |
| 359 | pPHSDeviceExt->pstServiceFlowPhsRulesTable = NULL; |
| 360 | } |
| 361 | |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 362 | kfree(pPHSDeviceExt->CompressedTxBuffer); |
| 363 | pPHSDeviceExt->CompressedTxBuffer = NULL; |
| 364 | |
| 365 | kfree(pPHSDeviceExt->UnCompressedRxBuffer); |
| 366 | pPHSDeviceExt->UnCompressedRxBuffer = NULL; |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 367 | |
| 368 | return 0; |
| 369 | } |
| 370 | |
| 371 | |
| 372 | |
| 373 | //PHS functions |
| 374 | /*++ |
| 375 | PhsUpdateClassifierRule |
| 376 | |
| 377 | Routine Description: |
| 378 | Exported function to add or modify a PHS Rule. |
| 379 | |
| 380 | Arguments: |
| 381 | IN void* pvContext - PHS Driver Specific Context |
| 382 | IN B_UINT16 uiVcid - The Service Flow ID for which the PHS rule applies |
| 383 | IN B_UINT16 uiClsId - The Classifier ID within the Service Flow for which the PHS rule applies. |
| 384 | IN S_PHS_RULE *psPhsRule - The PHS Rule strcuture to be added to the PHS Rule table. |
| 385 | |
| 386 | Return Value: |
| 387 | |
| 388 | 0 if successful, |
| 389 | >0 Error. |
| 390 | |
| 391 | --*/ |
| 392 | ULONG PhsUpdateClassifierRule(IN void* pvContext, |
| 393 | IN B_UINT16 uiVcid , |
| 394 | IN B_UINT16 uiClsId , |
| 395 | IN S_PHS_RULE *psPhsRule, |
| 396 | IN B_UINT8 u8AssociatedPHSI) |
| 397 | { |
| 398 | ULONG lStatus =0; |
| 399 | UINT nSFIndex =0 ; |
| 400 | S_SERVICEFLOW_ENTRY *pstServiceFlowEntry = NULL; |
| 401 | PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev); |
| 402 | |
| 403 | |
| 404 | |
| 405 | PPHS_DEVICE_EXTENSION pDeviceExtension= (PPHS_DEVICE_EXTENSION)pvContext; |
| 406 | |
| 407 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL,"PHS With Corr2 Changes \n"); |
| 408 | |
| 409 | if(pDeviceExtension == NULL) |
| 410 | { |
| 411 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL,"Invalid Device Extension\n"); |
| 412 | return ERR_PHS_INVALID_DEVICE_EXETENSION; |
| 413 | } |
| 414 | |
| 415 | |
| 416 | if(u8AssociatedPHSI == 0) |
| 417 | { |
| 418 | return ERR_PHS_INVALID_PHS_RULE; |
| 419 | } |
| 420 | |
| 421 | /* Retrieve the SFID Entry Index for requested Service Flow */ |
| 422 | |
| 423 | nSFIndex = GetServiceFlowEntry(pDeviceExtension->pstServiceFlowPhsRulesTable, |
| 424 | uiVcid,&pstServiceFlowEntry); |
| 425 | |
| 426 | if(nSFIndex == PHS_INVALID_TABLE_INDEX) |
| 427 | { |
| 428 | /* This is a new SF. Create a mapping entry for this */ |
| 429 | lStatus = CreateSFToClassifierRuleMapping(uiVcid, uiClsId, |
| 430 | pDeviceExtension->pstServiceFlowPhsRulesTable, psPhsRule, u8AssociatedPHSI); |
| 431 | return lStatus; |
| 432 | } |
| 433 | |
| 434 | /* SF already Exists Add PHS Rule to existing SF */ |
| 435 | lStatus = CreateClassiferToPHSRuleMapping(uiVcid, uiClsId, |
| 436 | pstServiceFlowEntry, psPhsRule, u8AssociatedPHSI); |
| 437 | |
| 438 | return lStatus; |
| 439 | } |
| 440 | |
| 441 | /*++ |
| 442 | PhsDeletePHSRule |
| 443 | |
| 444 | Routine Description: |
| 445 | Deletes the specified phs Rule within Vcid |
| 446 | |
| 447 | Arguments: |
| 448 | IN void* pvContext - PHS Driver Specific Context |
| 449 | IN B_UINT16 uiVcid - The Service Flow ID for which the PHS rule applies |
| 450 | IN B_UINT8 u8PHSI - the PHS Index identifying PHS rule to be deleted. |
| 451 | |
| 452 | Return Value: |
| 453 | |
| 454 | 0 if successful, |
| 455 | >0 Error. |
| 456 | |
| 457 | --*/ |
| 458 | |
| 459 | ULONG PhsDeletePHSRule(IN void* pvContext,IN B_UINT16 uiVcid,IN B_UINT8 u8PHSI) |
| 460 | { |
| 461 | ULONG lStatus =0; |
| 462 | UINT nSFIndex =0, nClsidIndex =0 ; |
| 463 | S_SERVICEFLOW_ENTRY *pstServiceFlowEntry = NULL; |
| 464 | S_CLASSIFIER_TABLE *pstClassifierRulesTable = NULL; |
| 465 | PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev); |
| 466 | |
| 467 | |
| 468 | PPHS_DEVICE_EXTENSION pDeviceExtension= (PPHS_DEVICE_EXTENSION)pvContext; |
| 469 | |
| 470 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "======>\n"); |
| 471 | |
| 472 | if(pDeviceExtension) |
| 473 | { |
| 474 | |
| 475 | //Retrieve the SFID Entry Index for requested Service Flow |
| 476 | nSFIndex = GetServiceFlowEntry(pDeviceExtension |
| 477 | ->pstServiceFlowPhsRulesTable,uiVcid,&pstServiceFlowEntry); |
| 478 | |
| 479 | if(nSFIndex == PHS_INVALID_TABLE_INDEX) |
| 480 | { |
| 481 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "SFID Match Failed\n"); |
| 482 | return ERR_SF_MATCH_FAIL; |
| 483 | } |
| 484 | |
| 485 | pstClassifierRulesTable=pstServiceFlowEntry->pstClassifierTable; |
| 486 | if(pstClassifierRulesTable) |
| 487 | { |
| 488 | for(nClsidIndex=0;nClsidIndex<MAX_PHSRULE_PER_SF;nClsidIndex++) |
| 489 | { |
| 490 | if(pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].bUsed && pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule) |
| 491 | { |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 492 | if(pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule->u8PHSI == u8PHSI) { |
| 493 | if(pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule->u8RefCnt) |
| 494 | pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule->u8RefCnt--; |
| 495 | if(0 == pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule->u8RefCnt) |
| 496 | kfree(pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule); |
| 497 | memset(&pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex], 0, |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 498 | sizeof(S_CLASSIFIER_ENTRY)); |
| 499 | } |
| 500 | } |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | } |
| 505 | return lStatus; |
| 506 | } |
| 507 | |
| 508 | /*++ |
| 509 | PhsDeleteClassifierRule |
| 510 | |
| 511 | Routine Description: |
| 512 | Exported function to Delete a PHS Rule for the SFID,CLSID Pair. |
| 513 | |
| 514 | Arguments: |
| 515 | IN void* pvContext - PHS Driver Specific Context |
| 516 | IN B_UINT16 uiVcid - The Service Flow ID for which the PHS rule applies |
| 517 | IN B_UINT16 uiClsId - The Classifier ID within the Service Flow for which the PHS rule applies. |
| 518 | |
| 519 | Return Value: |
| 520 | |
| 521 | 0 if successful, |
| 522 | >0 Error. |
| 523 | |
| 524 | --*/ |
| 525 | ULONG PhsDeleteClassifierRule(IN void* pvContext,IN B_UINT16 uiVcid ,IN B_UINT16 uiClsId) |
| 526 | { |
| 527 | ULONG lStatus =0; |
| 528 | UINT nSFIndex =0, nClsidIndex =0 ; |
| 529 | S_SERVICEFLOW_ENTRY *pstServiceFlowEntry = NULL; |
| 530 | S_CLASSIFIER_ENTRY *pstClassifierEntry = NULL; |
| 531 | PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev); |
| 532 | PPHS_DEVICE_EXTENSION pDeviceExtension= (PPHS_DEVICE_EXTENSION)pvContext; |
| 533 | |
| 534 | if(pDeviceExtension) |
| 535 | { |
| 536 | //Retrieve the SFID Entry Index for requested Service Flow |
| 537 | nSFIndex = GetServiceFlowEntry(pDeviceExtension |
| 538 | ->pstServiceFlowPhsRulesTable, uiVcid, &pstServiceFlowEntry); |
| 539 | if(nSFIndex == PHS_INVALID_TABLE_INDEX) |
| 540 | { |
| 541 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL,"SFID Match Failed\n"); |
| 542 | return ERR_SF_MATCH_FAIL; |
| 543 | } |
| 544 | |
| 545 | nClsidIndex = GetClassifierEntry(pstServiceFlowEntry->pstClassifierTable, |
| 546 | uiClsId, eActiveClassifierRuleContext, &pstClassifierEntry); |
| 547 | if((nClsidIndex != PHS_INVALID_TABLE_INDEX) && (!pstClassifierEntry->bUnclassifiedPHSRule)) |
| 548 | { |
| 549 | if(pstClassifierEntry->pstPhsRule) |
| 550 | { |
| 551 | if(pstClassifierEntry->pstPhsRule->u8RefCnt) |
| 552 | pstClassifierEntry->pstPhsRule->u8RefCnt--; |
| 553 | if(0==pstClassifierEntry->pstPhsRule->u8RefCnt) |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 554 | kfree(pstClassifierEntry->pstPhsRule); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 555 | |
| 556 | } |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 557 | memset(pstClassifierEntry, 0, sizeof(S_CLASSIFIER_ENTRY)); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 558 | } |
| 559 | |
| 560 | nClsidIndex = GetClassifierEntry(pstServiceFlowEntry->pstClassifierTable, |
| 561 | uiClsId,eOldClassifierRuleContext,&pstClassifierEntry); |
| 562 | |
| 563 | if((nClsidIndex != PHS_INVALID_TABLE_INDEX) && (!pstClassifierEntry->bUnclassifiedPHSRule)) |
| 564 | { |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 565 | kfree(pstClassifierEntry->pstPhsRule); |
| 566 | memset(pstClassifierEntry, 0, sizeof(S_CLASSIFIER_ENTRY)); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 567 | } |
| 568 | } |
| 569 | return lStatus; |
| 570 | } |
| 571 | |
| 572 | /*++ |
| 573 | PhsDeleteSFRules |
| 574 | |
| 575 | Routine Description: |
| 576 | Exported function to Delete a all PHS Rules for the SFID. |
| 577 | |
| 578 | Arguments: |
| 579 | IN void* pvContext - PHS Driver Specific Context |
| 580 | IN B_UINT16 uiVcid - The Service Flow ID for which the PHS rules need to be deleted |
| 581 | |
| 582 | Return Value: |
| 583 | |
| 584 | 0 if successful, |
| 585 | >0 Error. |
| 586 | |
| 587 | --*/ |
| 588 | ULONG PhsDeleteSFRules(IN void* pvContext,IN B_UINT16 uiVcid) |
| 589 | { |
| 590 | |
| 591 | ULONG lStatus =0; |
| 592 | UINT nSFIndex =0, nClsidIndex =0 ; |
| 593 | S_SERVICEFLOW_ENTRY *pstServiceFlowEntry = NULL; |
| 594 | S_CLASSIFIER_TABLE *pstClassifierRulesTable = NULL; |
| 595 | PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev); |
| 596 | PPHS_DEVICE_EXTENSION pDeviceExtension= (PPHS_DEVICE_EXTENSION)pvContext; |
| 597 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL,"====> \n"); |
| 598 | |
| 599 | if(pDeviceExtension) |
| 600 | { |
| 601 | //Retrieve the SFID Entry Index for requested Service Flow |
| 602 | nSFIndex = GetServiceFlowEntry(pDeviceExtension->pstServiceFlowPhsRulesTable, |
| 603 | uiVcid,&pstServiceFlowEntry); |
| 604 | if(nSFIndex == PHS_INVALID_TABLE_INDEX) |
| 605 | { |
| 606 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "SFID Match Failed\n"); |
| 607 | return ERR_SF_MATCH_FAIL; |
| 608 | } |
| 609 | |
| 610 | pstClassifierRulesTable=pstServiceFlowEntry->pstClassifierTable; |
| 611 | if(pstClassifierRulesTable) |
| 612 | { |
| 613 | for(nClsidIndex=0;nClsidIndex<MAX_PHSRULE_PER_SF;nClsidIndex++) |
| 614 | { |
| 615 | if(pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule) |
| 616 | { |
| 617 | if(pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex] |
| 618 | .pstPhsRule->u8RefCnt) |
| 619 | pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex] |
| 620 | .pstPhsRule->u8RefCnt--; |
| 621 | if(0==pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex] |
| 622 | .pstPhsRule->u8RefCnt) |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 623 | kfree(pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex].pstPhsRule); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 624 | pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex] |
| 625 | .pstPhsRule = NULL; |
| 626 | } |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 627 | memset(&pstClassifierRulesTable->stActivePhsRulesList[nClsidIndex], 0, sizeof(S_CLASSIFIER_ENTRY)); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 628 | if(pstClassifierRulesTable->stOldPhsRulesList[nClsidIndex].pstPhsRule) |
| 629 | { |
| 630 | if(pstClassifierRulesTable->stOldPhsRulesList[nClsidIndex] |
| 631 | .pstPhsRule->u8RefCnt) |
| 632 | pstClassifierRulesTable->stOldPhsRulesList[nClsidIndex] |
| 633 | .pstPhsRule->u8RefCnt--; |
| 634 | if(0 == pstClassifierRulesTable->stOldPhsRulesList[nClsidIndex] |
| 635 | .pstPhsRule->u8RefCnt) |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 636 | kfree(pstClassifierRulesTable |
| 637 | ->stOldPhsRulesList[nClsidIndex].pstPhsRule); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 638 | pstClassifierRulesTable->stOldPhsRulesList[nClsidIndex] |
| 639 | .pstPhsRule = NULL; |
| 640 | } |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 641 | memset(&pstClassifierRulesTable->stOldPhsRulesList[nClsidIndex], 0, sizeof(S_CLASSIFIER_ENTRY)); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 642 | } |
| 643 | } |
| 644 | pstServiceFlowEntry->bUsed = FALSE; |
| 645 | pstServiceFlowEntry->uiVcid = 0; |
| 646 | |
| 647 | } |
| 648 | |
| 649 | return lStatus; |
| 650 | } |
| 651 | |
| 652 | |
| 653 | /*++ |
| 654 | PhsCompress |
| 655 | |
| 656 | Routine Description: |
| 657 | Exported function to compress the data using PHS. |
| 658 | |
| 659 | Arguments: |
| 660 | IN void* pvContext - PHS Driver Specific Context. |
| 661 | IN B_UINT16 uiVcid - The Service Flow ID to which current packet header compression applies. |
| 662 | IN UINT uiClsId - The Classifier ID to which current packet header compression applies. |
| 663 | IN void *pvInputBuffer - The Input buffer containg packet header data |
| 664 | IN void *pvOutputBuffer - The output buffer returned by this function after PHS |
| 665 | IN UINT *pOldHeaderSize - The actual size of the header before PHS |
| 666 | IN UINT *pNewHeaderSize - The new size of the header after applying PHS |
| 667 | |
| 668 | Return Value: |
| 669 | |
| 670 | 0 if successful, |
| 671 | >0 Error. |
| 672 | |
| 673 | --*/ |
| 674 | ULONG PhsCompress(IN void* pvContext, |
| 675 | IN B_UINT16 uiVcid, |
| 676 | IN B_UINT16 uiClsId, |
| 677 | IN void *pvInputBuffer, |
| 678 | OUT void *pvOutputBuffer, |
| 679 | OUT UINT *pOldHeaderSize, |
| 680 | OUT UINT *pNewHeaderSize ) |
| 681 | { |
| 682 | UINT nSFIndex =0, nClsidIndex =0 ; |
| 683 | S_SERVICEFLOW_ENTRY *pstServiceFlowEntry = NULL; |
| 684 | S_CLASSIFIER_ENTRY *pstClassifierEntry = NULL; |
| 685 | S_PHS_RULE *pstPhsRule = NULL; |
| 686 | ULONG lStatus =0; |
| 687 | PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev); |
| 688 | |
| 689 | |
| 690 | |
| 691 | PPHS_DEVICE_EXTENSION pDeviceExtension= (PPHS_DEVICE_EXTENSION)pvContext; |
| 692 | |
| 693 | |
| 694 | if(pDeviceExtension == NULL) |
| 695 | { |
| 696 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"Invalid Device Extension\n"); |
| 697 | lStatus = STATUS_PHS_NOCOMPRESSION ; |
| 698 | return lStatus; |
| 699 | |
| 700 | } |
| 701 | |
| 702 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"Suppressing header \n"); |
| 703 | |
| 704 | |
| 705 | //Retrieve the SFID Entry Index for requested Service Flow |
| 706 | nSFIndex = GetServiceFlowEntry(pDeviceExtension->pstServiceFlowPhsRulesTable, |
| 707 | uiVcid,&pstServiceFlowEntry); |
| 708 | if(nSFIndex == PHS_INVALID_TABLE_INDEX) |
| 709 | { |
| 710 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"SFID Match Failed\n"); |
| 711 | lStatus = STATUS_PHS_NOCOMPRESSION ; |
| 712 | return lStatus; |
| 713 | } |
| 714 | |
| 715 | nClsidIndex = GetClassifierEntry(pstServiceFlowEntry->pstClassifierTable, |
| 716 | uiClsId,eActiveClassifierRuleContext,&pstClassifierEntry); |
| 717 | |
| 718 | if(nClsidIndex == PHS_INVALID_TABLE_INDEX) |
| 719 | { |
| 720 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"No PHS Rule Defined For Classifier\n"); |
| 721 | lStatus = STATUS_PHS_NOCOMPRESSION ; |
| 722 | return lStatus; |
| 723 | } |
| 724 | |
| 725 | |
| 726 | //get rule from SF id,Cls ID pair and proceed |
| 727 | pstPhsRule = pstClassifierEntry->pstPhsRule; |
| 728 | |
| 729 | if(!ValidatePHSRuleComplete(pstPhsRule)) |
| 730 | { |
| 731 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL,"PHS Rule Defined For Classifier But Not Complete\n"); |
| 732 | lStatus = STATUS_PHS_NOCOMPRESSION ; |
| 733 | return lStatus; |
| 734 | } |
| 735 | |
| 736 | //Compress Packet |
| 737 | lStatus = phs_compress(pstPhsRule,(PUCHAR)pvInputBuffer, |
| 738 | (PUCHAR)pvOutputBuffer, pOldHeaderSize,pNewHeaderSize); |
| 739 | |
| 740 | if(lStatus == STATUS_PHS_COMPRESSED) |
| 741 | { |
| 742 | pstPhsRule->PHSModifiedBytes += *pOldHeaderSize - *pNewHeaderSize - 1; |
| 743 | pstPhsRule->PHSModifiedNumPackets++; |
| 744 | } |
| 745 | else |
| 746 | pstPhsRule->PHSErrorNumPackets++; |
| 747 | |
| 748 | return lStatus; |
| 749 | } |
| 750 | |
| 751 | /*++ |
| 752 | PhsDeCompress |
| 753 | |
| 754 | Routine Description: |
| 755 | Exported function to restore the packet header in Rx path. |
| 756 | |
| 757 | Arguments: |
| 758 | IN void* pvContext - PHS Driver Specific Context. |
| 759 | IN B_UINT16 uiVcid - The Service Flow ID to which current packet header restoration applies. |
| 760 | IN void *pvInputBuffer - The Input buffer containg suppressed packet header data |
| 761 | OUT void *pvOutputBuffer - The output buffer returned by this function after restoration |
| 762 | OUT UINT *pHeaderSize - The packet header size after restoration is returned in this parameter. |
| 763 | |
| 764 | Return Value: |
| 765 | |
| 766 | 0 if successful, |
| 767 | >0 Error. |
| 768 | |
| 769 | --*/ |
| 770 | ULONG PhsDeCompress(IN void* pvContext, |
| 771 | IN B_UINT16 uiVcid, |
| 772 | IN void *pvInputBuffer, |
| 773 | OUT void *pvOutputBuffer, |
| 774 | OUT UINT *pInHeaderSize, |
| 775 | OUT UINT *pOutHeaderSize ) |
| 776 | { |
| 777 | UINT nSFIndex =0, nPhsRuleIndex =0 ; |
| 778 | S_SERVICEFLOW_ENTRY *pstServiceFlowEntry = NULL; |
| 779 | S_PHS_RULE *pstPhsRule = NULL; |
| 780 | UINT phsi; |
| 781 | PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev); |
| 782 | PPHS_DEVICE_EXTENSION pDeviceExtension= |
| 783 | (PPHS_DEVICE_EXTENSION)pvContext; |
| 784 | |
| 785 | *pInHeaderSize = 0; |
| 786 | |
| 787 | if(pDeviceExtension == NULL) |
| 788 | { |
Joe Perches | ceeb6fe | 2011-06-23 11:40:18 -0700 | [diff] [blame] | 789 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_RECEIVE,DBG_LVL_ALL,"Invalid Device Extension\n"); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 790 | return ERR_PHS_INVALID_DEVICE_EXETENSION; |
| 791 | } |
| 792 | |
Joe Perches | ceeb6fe | 2011-06-23 11:40:18 -0700 | [diff] [blame] | 793 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_RECEIVE,DBG_LVL_ALL,"Restoring header\n"); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 794 | |
| 795 | phsi = *((unsigned char *)(pvInputBuffer)); |
Joe Perches | ceeb6fe | 2011-06-23 11:40:18 -0700 | [diff] [blame] | 796 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_RECEIVE,DBG_LVL_ALL,"PHSI To Be Used For restore : %x\n",phsi); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 797 | if(phsi == UNCOMPRESSED_PACKET ) |
| 798 | { |
| 799 | return STATUS_PHS_NOCOMPRESSION; |
| 800 | } |
| 801 | |
| 802 | //Retrieve the SFID Entry Index for requested Service Flow |
| 803 | nSFIndex = GetServiceFlowEntry(pDeviceExtension->pstServiceFlowPhsRulesTable, |
| 804 | uiVcid,&pstServiceFlowEntry); |
| 805 | if(nSFIndex == PHS_INVALID_TABLE_INDEX) |
| 806 | { |
Joe Perches | ceeb6fe | 2011-06-23 11:40:18 -0700 | [diff] [blame] | 807 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_RECEIVE,DBG_LVL_ALL,"SFID Match Failed During Lookup\n"); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 808 | return ERR_SF_MATCH_FAIL; |
| 809 | } |
| 810 | |
| 811 | nPhsRuleIndex = GetPhsRuleEntry(pstServiceFlowEntry->pstClassifierTable,phsi, |
| 812 | eActiveClassifierRuleContext,&pstPhsRule); |
| 813 | if(nPhsRuleIndex == PHS_INVALID_TABLE_INDEX) |
| 814 | { |
| 815 | //Phs Rule does not exist in active rules table. Lets try in the old rules table. |
| 816 | nPhsRuleIndex = GetPhsRuleEntry(pstServiceFlowEntry->pstClassifierTable, |
| 817 | phsi,eOldClassifierRuleContext,&pstPhsRule); |
| 818 | if(nPhsRuleIndex == PHS_INVALID_TABLE_INDEX) |
| 819 | { |
| 820 | return ERR_PHSRULE_MATCH_FAIL; |
| 821 | } |
| 822 | |
| 823 | } |
| 824 | |
| 825 | *pInHeaderSize = phs_decompress((PUCHAR)pvInputBuffer, |
| 826 | (PUCHAR)pvOutputBuffer,pstPhsRule,pOutHeaderSize); |
| 827 | |
| 828 | pstPhsRule->PHSModifiedBytes += *pOutHeaderSize - *pInHeaderSize - 1; |
| 829 | |
| 830 | pstPhsRule->PHSModifiedNumPackets++; |
| 831 | return STATUS_PHS_COMPRESSED; |
| 832 | } |
| 833 | |
| 834 | |
| 835 | //----------------------------------------------------------------------------- |
| 836 | // Procedure: free_phs_serviceflow_rules |
| 837 | // |
| 838 | // Description: This routine is responsible for freeing memory allocated for PHS rules. |
| 839 | // |
| 840 | // Arguments: |
| 841 | // rules - ptr to S_SERVICEFLOW_TABLE structure. |
| 842 | // |
| 843 | // Returns: |
| 844 | // Does not return any value. |
| 845 | //----------------------------------------------------------------------------- |
| 846 | |
Stephen Hemminger | 9dd47ee | 2010-11-01 12:24:00 -0400 | [diff] [blame] | 847 | static void free_phs_serviceflow_rules(S_SERVICEFLOW_TABLE *psServiceFlowRulesTable) |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 848 | { |
| 849 | int i,j; |
| 850 | PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev); |
| 851 | |
| 852 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "=======>\n"); |
| 853 | if(psServiceFlowRulesTable) |
| 854 | { |
| 855 | for(i=0;i<MAX_SERVICEFLOWS;i++) |
| 856 | { |
| 857 | S_SERVICEFLOW_ENTRY stServiceFlowEntry = |
| 858 | psServiceFlowRulesTable->stSFList[i]; |
| 859 | S_CLASSIFIER_TABLE *pstClassifierRulesTable = |
| 860 | stServiceFlowEntry.pstClassifierTable; |
| 861 | |
| 862 | if(pstClassifierRulesTable) |
| 863 | { |
| 864 | for(j=0;j<MAX_PHSRULE_PER_SF;j++) |
| 865 | { |
| 866 | if(pstClassifierRulesTable->stActivePhsRulesList[j].pstPhsRule) |
| 867 | { |
| 868 | if(pstClassifierRulesTable->stActivePhsRulesList[j].pstPhsRule |
| 869 | ->u8RefCnt) |
| 870 | pstClassifierRulesTable->stActivePhsRulesList[j].pstPhsRule |
| 871 | ->u8RefCnt--; |
| 872 | if(0==pstClassifierRulesTable->stActivePhsRulesList[j].pstPhsRule |
| 873 | ->u8RefCnt) |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 874 | kfree(pstClassifierRulesTable->stActivePhsRulesList[j].pstPhsRule); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 875 | pstClassifierRulesTable->stActivePhsRulesList[j].pstPhsRule = NULL; |
| 876 | } |
| 877 | if(pstClassifierRulesTable->stOldPhsRulesList[j].pstPhsRule) |
| 878 | { |
| 879 | if(pstClassifierRulesTable->stOldPhsRulesList[j].pstPhsRule |
| 880 | ->u8RefCnt) |
| 881 | pstClassifierRulesTable->stOldPhsRulesList[j].pstPhsRule |
| 882 | ->u8RefCnt--; |
| 883 | if(0==pstClassifierRulesTable->stOldPhsRulesList[j].pstPhsRule |
| 884 | ->u8RefCnt) |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 885 | kfree(pstClassifierRulesTable->stOldPhsRulesList[j].pstPhsRule); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 886 | pstClassifierRulesTable->stOldPhsRulesList[j].pstPhsRule = NULL; |
| 887 | } |
| 888 | } |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 889 | kfree(pstClassifierRulesTable); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 890 | stServiceFlowEntry.pstClassifierTable = pstClassifierRulesTable = NULL; |
| 891 | } |
| 892 | } |
| 893 | } |
| 894 | |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 895 | kfree(psServiceFlowRulesTable); |
| 896 | psServiceFlowRulesTable = NULL; |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 897 | } |
| 898 | |
| 899 | |
| 900 | |
Stephen Hemminger | 9dd47ee | 2010-11-01 12:24:00 -0400 | [diff] [blame] | 901 | static BOOLEAN ValidatePHSRuleComplete(IN S_PHS_RULE *psPhsRule) |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 902 | { |
| 903 | if(psPhsRule) |
| 904 | { |
| 905 | if(!psPhsRule->u8PHSI) |
| 906 | { |
| 907 | // PHSI is not valid |
| 908 | return FALSE; |
| 909 | } |
| 910 | |
| 911 | if(!psPhsRule->u8PHSS) |
| 912 | { |
| 913 | //PHSS Is Undefined |
| 914 | return FALSE; |
| 915 | } |
| 916 | |
| 917 | //Check if PHSF is defines for the PHS Rule |
| 918 | if(!psPhsRule->u8PHSFLength) // If any part of PHSF is valid then Rule contains valid PHSF |
| 919 | { |
| 920 | return FALSE; |
| 921 | } |
| 922 | return TRUE; |
| 923 | } |
| 924 | else |
| 925 | { |
| 926 | return FALSE; |
| 927 | } |
| 928 | } |
| 929 | |
| 930 | UINT GetServiceFlowEntry(IN S_SERVICEFLOW_TABLE *psServiceFlowTable, |
| 931 | IN B_UINT16 uiVcid,S_SERVICEFLOW_ENTRY **ppstServiceFlowEntry) |
| 932 | { |
| 933 | int i; |
| 934 | for(i=0;i<MAX_SERVICEFLOWS;i++) |
| 935 | { |
| 936 | if(psServiceFlowTable->stSFList[i].bUsed) |
| 937 | { |
| 938 | if(psServiceFlowTable->stSFList[i].uiVcid == uiVcid) |
| 939 | { |
| 940 | *ppstServiceFlowEntry = &psServiceFlowTable->stSFList[i]; |
| 941 | return i; |
| 942 | } |
| 943 | } |
| 944 | } |
| 945 | |
| 946 | *ppstServiceFlowEntry = NULL; |
| 947 | return PHS_INVALID_TABLE_INDEX; |
| 948 | } |
| 949 | |
| 950 | |
| 951 | UINT GetClassifierEntry(IN S_CLASSIFIER_TABLE *pstClassifierTable, |
| 952 | IN B_UINT32 uiClsid,E_CLASSIFIER_ENTRY_CONTEXT eClsContext, |
| 953 | OUT S_CLASSIFIER_ENTRY **ppstClassifierEntry) |
| 954 | { |
| 955 | int i; |
| 956 | S_CLASSIFIER_ENTRY *psClassifierRules = NULL; |
| 957 | for(i=0;i<MAX_PHSRULE_PER_SF;i++) |
| 958 | { |
| 959 | |
| 960 | if(eClsContext == eActiveClassifierRuleContext) |
| 961 | { |
| 962 | psClassifierRules = &pstClassifierTable->stActivePhsRulesList[i]; |
| 963 | } |
| 964 | else |
| 965 | { |
| 966 | psClassifierRules = &pstClassifierTable->stOldPhsRulesList[i]; |
| 967 | } |
| 968 | |
| 969 | if(psClassifierRules->bUsed) |
| 970 | { |
| 971 | if(psClassifierRules->uiClassifierRuleId == uiClsid) |
| 972 | { |
| 973 | *ppstClassifierEntry = psClassifierRules; |
| 974 | return i; |
| 975 | } |
| 976 | } |
| 977 | |
| 978 | } |
| 979 | |
| 980 | *ppstClassifierEntry = NULL; |
| 981 | return PHS_INVALID_TABLE_INDEX; |
| 982 | } |
| 983 | |
Stephen Hemminger | 9dd47ee | 2010-11-01 12:24:00 -0400 | [diff] [blame] | 984 | static UINT GetPhsRuleEntry(IN S_CLASSIFIER_TABLE *pstClassifierTable, |
| 985 | IN B_UINT32 uiPHSI,E_CLASSIFIER_ENTRY_CONTEXT eClsContext, |
| 986 | OUT S_PHS_RULE **ppstPhsRule) |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 987 | { |
| 988 | int i; |
| 989 | S_CLASSIFIER_ENTRY *pstClassifierRule = NULL; |
| 990 | for(i=0;i<MAX_PHSRULE_PER_SF;i++) |
| 991 | { |
| 992 | if(eClsContext == eActiveClassifierRuleContext) |
| 993 | { |
| 994 | pstClassifierRule = &pstClassifierTable->stActivePhsRulesList[i]; |
| 995 | } |
| 996 | else |
| 997 | { |
| 998 | pstClassifierRule = &pstClassifierTable->stOldPhsRulesList[i]; |
| 999 | } |
| 1000 | if(pstClassifierRule->bUsed) |
| 1001 | { |
| 1002 | if(pstClassifierRule->u8PHSI == uiPHSI) |
| 1003 | { |
| 1004 | *ppstPhsRule = pstClassifierRule->pstPhsRule; |
| 1005 | return i; |
| 1006 | } |
| 1007 | } |
| 1008 | |
| 1009 | } |
| 1010 | |
| 1011 | *ppstPhsRule = NULL; |
| 1012 | return PHS_INVALID_TABLE_INDEX; |
| 1013 | } |
| 1014 | |
| 1015 | UINT CreateSFToClassifierRuleMapping(IN B_UINT16 uiVcid,IN B_UINT16 uiClsId, |
| 1016 | IN S_SERVICEFLOW_TABLE *psServiceFlowTable,S_PHS_RULE *psPhsRule, |
| 1017 | B_UINT8 u8AssociatedPHSI) |
| 1018 | { |
| 1019 | |
| 1020 | S_CLASSIFIER_TABLE *psaClassifiertable = NULL; |
| 1021 | UINT uiStatus = 0; |
| 1022 | int iSfIndex; |
| 1023 | BOOLEAN bFreeEntryFound =FALSE; |
| 1024 | //Check for a free entry in SFID table |
| 1025 | for(iSfIndex=0;iSfIndex < MAX_SERVICEFLOWS;iSfIndex++) |
| 1026 | { |
| 1027 | if(!psServiceFlowTable->stSFList[iSfIndex].bUsed) |
| 1028 | { |
| 1029 | bFreeEntryFound = TRUE; |
| 1030 | break; |
| 1031 | } |
| 1032 | } |
| 1033 | |
| 1034 | if(!bFreeEntryFound) |
| 1035 | return ERR_SFTABLE_FULL; |
| 1036 | |
| 1037 | |
| 1038 | psaClassifiertable = psServiceFlowTable->stSFList[iSfIndex].pstClassifierTable; |
| 1039 | uiStatus = CreateClassifierPHSRule(uiClsId,psaClassifiertable,psPhsRule, |
| 1040 | eActiveClassifierRuleContext,u8AssociatedPHSI); |
| 1041 | if(uiStatus == PHS_SUCCESS) |
| 1042 | { |
| 1043 | //Add entry at free index to the SF |
| 1044 | psServiceFlowTable->stSFList[iSfIndex].bUsed = TRUE; |
| 1045 | psServiceFlowTable->stSFList[iSfIndex].uiVcid = uiVcid; |
| 1046 | } |
| 1047 | |
| 1048 | return uiStatus; |
| 1049 | |
| 1050 | } |
| 1051 | |
| 1052 | UINT CreateClassiferToPHSRuleMapping(IN B_UINT16 uiVcid, |
| 1053 | IN B_UINT16 uiClsId,IN S_SERVICEFLOW_ENTRY *pstServiceFlowEntry, |
| 1054 | S_PHS_RULE *psPhsRule,B_UINT8 u8AssociatedPHSI) |
| 1055 | { |
| 1056 | S_CLASSIFIER_ENTRY *pstClassifierEntry = NULL; |
| 1057 | UINT uiStatus =PHS_SUCCESS; |
| 1058 | UINT nClassifierIndex = 0; |
| 1059 | S_CLASSIFIER_TABLE *psaClassifiertable = NULL; |
| 1060 | PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev); |
| 1061 | psaClassifiertable = pstServiceFlowEntry->pstClassifierTable; |
| 1062 | |
| 1063 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "==>"); |
| 1064 | |
| 1065 | /* Check if the supplied Classifier already exists */ |
| 1066 | nClassifierIndex =GetClassifierEntry( |
| 1067 | pstServiceFlowEntry->pstClassifierTable,uiClsId, |
| 1068 | eActiveClassifierRuleContext,&pstClassifierEntry); |
| 1069 | if(nClassifierIndex == PHS_INVALID_TABLE_INDEX) |
| 1070 | { |
| 1071 | /* |
| 1072 | The Classifier doesn't exist. So its a new classifier being added. |
| 1073 | Add new entry to associate PHS Rule to the Classifier |
| 1074 | */ |
| 1075 | |
| 1076 | uiStatus = CreateClassifierPHSRule(uiClsId,psaClassifiertable, |
| 1077 | psPhsRule,eActiveClassifierRuleContext,u8AssociatedPHSI); |
| 1078 | return uiStatus; |
| 1079 | } |
| 1080 | |
| 1081 | /* |
| 1082 | The Classifier exists.The PHS Rule for this classifier |
| 1083 | is being modified |
| 1084 | */ |
| 1085 | if(pstClassifierEntry->u8PHSI == psPhsRule->u8PHSI) |
| 1086 | { |
| 1087 | if(pstClassifierEntry->pstPhsRule == NULL) |
| 1088 | return ERR_PHS_INVALID_PHS_RULE; |
| 1089 | |
| 1090 | /* |
| 1091 | This rule already exists if any fields are changed for this PHS |
| 1092 | rule update them. |
| 1093 | */ |
| 1094 | /* If any part of PHSF is valid then we update PHSF */ |
| 1095 | if(psPhsRule->u8PHSFLength) |
| 1096 | { |
| 1097 | //update PHSF |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 1098 | memcpy(pstClassifierEntry->pstPhsRule->u8PHSF, |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1099 | psPhsRule->u8PHSF , MAX_PHS_LENGTHS); |
| 1100 | } |
| 1101 | if(psPhsRule->u8PHSFLength) |
| 1102 | { |
| 1103 | //update PHSFLen |
| 1104 | pstClassifierEntry->pstPhsRule->u8PHSFLength = |
| 1105 | psPhsRule->u8PHSFLength; |
| 1106 | } |
| 1107 | if(psPhsRule->u8PHSMLength) |
| 1108 | { |
| 1109 | //update PHSM |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 1110 | memcpy(pstClassifierEntry->pstPhsRule->u8PHSM, |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1111 | psPhsRule->u8PHSM, MAX_PHS_LENGTHS); |
| 1112 | } |
| 1113 | if(psPhsRule->u8PHSMLength) |
| 1114 | { |
| 1115 | //update PHSM Len |
| 1116 | pstClassifierEntry->pstPhsRule->u8PHSMLength = |
| 1117 | psPhsRule->u8PHSMLength; |
| 1118 | } |
| 1119 | if(psPhsRule->u8PHSS) |
| 1120 | { |
| 1121 | //update PHSS |
| 1122 | pstClassifierEntry->pstPhsRule->u8PHSS = psPhsRule->u8PHSS; |
| 1123 | } |
| 1124 | |
| 1125 | //update PHSV |
| 1126 | pstClassifierEntry->pstPhsRule->u8PHSV = psPhsRule->u8PHSV; |
| 1127 | |
| 1128 | } |
| 1129 | else |
| 1130 | { |
| 1131 | /* |
| 1132 | A new rule is being set for this classifier. |
| 1133 | */ |
| 1134 | uiStatus=UpdateClassifierPHSRule( uiClsId, pstClassifierEntry, |
| 1135 | psaClassifiertable, psPhsRule, u8AssociatedPHSI); |
| 1136 | } |
| 1137 | |
| 1138 | |
| 1139 | |
| 1140 | return uiStatus; |
| 1141 | } |
| 1142 | |
Stephen Hemminger | 9dd47ee | 2010-11-01 12:24:00 -0400 | [diff] [blame] | 1143 | static UINT CreateClassifierPHSRule(IN B_UINT16 uiClsId, |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1144 | S_CLASSIFIER_TABLE *psaClassifiertable ,S_PHS_RULE *psPhsRule, |
| 1145 | E_CLASSIFIER_ENTRY_CONTEXT eClsContext,B_UINT8 u8AssociatedPHSI) |
| 1146 | { |
| 1147 | UINT iClassifierIndex = 0; |
| 1148 | BOOLEAN bFreeEntryFound = FALSE; |
| 1149 | S_CLASSIFIER_ENTRY *psClassifierRules = NULL; |
| 1150 | UINT nStatus = PHS_SUCCESS; |
| 1151 | PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev); |
| 1152 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL,"Inside CreateClassifierPHSRule"); |
| 1153 | if(psaClassifiertable == NULL) |
| 1154 | { |
| 1155 | return ERR_INVALID_CLASSIFIERTABLE_FOR_SF; |
| 1156 | } |
| 1157 | |
| 1158 | if(eClsContext == eOldClassifierRuleContext) |
| 1159 | { |
| 1160 | /* If An Old Entry for this classifier ID already exists in the |
| 1161 | old rules table replace it. */ |
| 1162 | |
| 1163 | iClassifierIndex = |
| 1164 | GetClassifierEntry(psaClassifiertable, uiClsId, |
| 1165 | eClsContext,&psClassifierRules); |
| 1166 | if(iClassifierIndex != PHS_INVALID_TABLE_INDEX) |
| 1167 | { |
| 1168 | /* |
| 1169 | The Classifier already exists in the old rules table |
| 1170 | Lets replace the old classifier with the new one. |
| 1171 | */ |
| 1172 | bFreeEntryFound = TRUE; |
| 1173 | } |
| 1174 | } |
| 1175 | |
| 1176 | if(!bFreeEntryFound) |
| 1177 | { |
| 1178 | /* |
| 1179 | Continue to search for a free location to add the rule |
| 1180 | */ |
| 1181 | for(iClassifierIndex = 0; iClassifierIndex < |
| 1182 | MAX_PHSRULE_PER_SF; iClassifierIndex++) |
| 1183 | { |
| 1184 | if(eClsContext == eActiveClassifierRuleContext) |
| 1185 | { |
| 1186 | psClassifierRules = |
| 1187 | &psaClassifiertable->stActivePhsRulesList[iClassifierIndex]; |
| 1188 | } |
| 1189 | else |
| 1190 | { |
| 1191 | psClassifierRules = |
| 1192 | &psaClassifiertable->stOldPhsRulesList[iClassifierIndex]; |
| 1193 | } |
| 1194 | |
| 1195 | if(!psClassifierRules->bUsed) |
| 1196 | { |
| 1197 | bFreeEntryFound = TRUE; |
| 1198 | break; |
| 1199 | } |
| 1200 | } |
| 1201 | } |
| 1202 | |
| 1203 | if(!bFreeEntryFound) |
| 1204 | { |
| 1205 | if(eClsContext == eActiveClassifierRuleContext) |
| 1206 | { |
| 1207 | return ERR_CLSASSIFIER_TABLE_FULL; |
| 1208 | } |
| 1209 | else |
| 1210 | { |
| 1211 | //Lets replace the oldest rule if we are looking in old Rule table |
| 1212 | if(psaClassifiertable->uiOldestPhsRuleIndex >= |
| 1213 | MAX_PHSRULE_PER_SF) |
| 1214 | { |
| 1215 | psaClassifiertable->uiOldestPhsRuleIndex =0; |
| 1216 | } |
| 1217 | |
| 1218 | iClassifierIndex = psaClassifiertable->uiOldestPhsRuleIndex; |
| 1219 | psClassifierRules = |
| 1220 | &psaClassifiertable->stOldPhsRulesList[iClassifierIndex]; |
| 1221 | |
| 1222 | (psaClassifiertable->uiOldestPhsRuleIndex)++; |
| 1223 | } |
| 1224 | } |
| 1225 | |
| 1226 | if(eClsContext == eOldClassifierRuleContext) |
| 1227 | { |
| 1228 | if(psClassifierRules->pstPhsRule == NULL) |
| 1229 | { |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 1230 | psClassifierRules->pstPhsRule = kmalloc(sizeof(S_PHS_RULE),GFP_KERNEL); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1231 | |
| 1232 | if(NULL == psClassifierRules->pstPhsRule) |
| 1233 | return ERR_PHSRULE_MEMALLOC_FAIL; |
| 1234 | } |
| 1235 | |
| 1236 | psClassifierRules->bUsed = TRUE; |
| 1237 | psClassifierRules->uiClassifierRuleId = uiClsId; |
| 1238 | psClassifierRules->u8PHSI = psPhsRule->u8PHSI; |
| 1239 | psClassifierRules->bUnclassifiedPHSRule = psPhsRule->bUnclassifiedPHSRule; |
| 1240 | |
| 1241 | /* Update The PHS rule */ |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 1242 | memcpy(psClassifierRules->pstPhsRule, |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1243 | psPhsRule, sizeof(S_PHS_RULE)); |
| 1244 | } |
| 1245 | else |
| 1246 | { |
| 1247 | nStatus = UpdateClassifierPHSRule(uiClsId,psClassifierRules, |
| 1248 | psaClassifiertable,psPhsRule,u8AssociatedPHSI); |
| 1249 | } |
| 1250 | return nStatus; |
| 1251 | } |
| 1252 | |
| 1253 | |
Stephen Hemminger | 9dd47ee | 2010-11-01 12:24:00 -0400 | [diff] [blame] | 1254 | static UINT UpdateClassifierPHSRule(IN B_UINT16 uiClsId, |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1255 | IN S_CLASSIFIER_ENTRY *pstClassifierEntry, |
| 1256 | S_CLASSIFIER_TABLE *psaClassifiertable ,S_PHS_RULE *psPhsRule, |
| 1257 | B_UINT8 u8AssociatedPHSI) |
| 1258 | { |
| 1259 | S_PHS_RULE *pstAddPhsRule = NULL; |
| 1260 | UINT nPhsRuleIndex = 0; |
| 1261 | BOOLEAN bPHSRuleOrphaned = FALSE; |
| 1262 | PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev); |
| 1263 | psPhsRule->u8RefCnt =0; |
| 1264 | |
| 1265 | /* Step 1 Deref Any Exisiting PHS Rule in this classifier Entry*/ |
| 1266 | bPHSRuleOrphaned = DerefPhsRule( uiClsId, psaClassifiertable, |
| 1267 | pstClassifierEntry->pstPhsRule); |
| 1268 | |
| 1269 | //Step 2 Search if there is a PHS Rule with u8AssociatedPHSI in Classifier table for this SF |
| 1270 | nPhsRuleIndex =GetPhsRuleEntry(psaClassifiertable,u8AssociatedPHSI, |
| 1271 | eActiveClassifierRuleContext, &pstAddPhsRule); |
| 1272 | if(PHS_INVALID_TABLE_INDEX == nPhsRuleIndex) |
| 1273 | { |
| 1274 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nAdding New PHSRuleEntry For Classifier"); |
| 1275 | |
| 1276 | if(psPhsRule->u8PHSI == 0) |
| 1277 | { |
| 1278 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nError PHSI is Zero\n"); |
| 1279 | return ERR_PHS_INVALID_PHS_RULE; |
| 1280 | } |
| 1281 | //Step 2.a PHS Rule Does Not Exist .Create New PHS Rule for uiClsId |
| 1282 | if(FALSE == bPHSRuleOrphaned) |
| 1283 | { |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 1284 | pstClassifierEntry->pstPhsRule = kmalloc(sizeof(S_PHS_RULE), GFP_KERNEL); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1285 | if(NULL == pstClassifierEntry->pstPhsRule) |
| 1286 | { |
| 1287 | return ERR_PHSRULE_MEMALLOC_FAIL; |
| 1288 | } |
| 1289 | } |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 1290 | memcpy(pstClassifierEntry->pstPhsRule, psPhsRule, sizeof(S_PHS_RULE)); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1291 | |
| 1292 | } |
| 1293 | else |
| 1294 | { |
| 1295 | //Step 2.b PHS Rule Exists Tie uiClsId with the existing PHS Rule |
| 1296 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_DISPATCH, DBG_LVL_ALL, "\nTying Classifier to Existing PHS Rule"); |
| 1297 | if(bPHSRuleOrphaned) |
| 1298 | { |
Stephen Hemminger | 082e889 | 2010-11-01 09:35:21 -0400 | [diff] [blame] | 1299 | kfree(pstClassifierEntry->pstPhsRule); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1300 | pstClassifierEntry->pstPhsRule = NULL; |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1301 | } |
| 1302 | pstClassifierEntry->pstPhsRule = pstAddPhsRule; |
| 1303 | |
| 1304 | } |
| 1305 | pstClassifierEntry->bUsed = TRUE; |
| 1306 | pstClassifierEntry->u8PHSI = pstClassifierEntry->pstPhsRule->u8PHSI; |
| 1307 | pstClassifierEntry->uiClassifierRuleId = uiClsId; |
| 1308 | pstClassifierEntry->pstPhsRule->u8RefCnt++; |
| 1309 | pstClassifierEntry->bUnclassifiedPHSRule = pstClassifierEntry->pstPhsRule->bUnclassifiedPHSRule; |
| 1310 | |
| 1311 | return PHS_SUCCESS; |
| 1312 | |
| 1313 | } |
| 1314 | |
Stephen Hemminger | 9dd47ee | 2010-11-01 12:24:00 -0400 | [diff] [blame] | 1315 | static BOOLEAN DerefPhsRule(IN B_UINT16 uiClsId,S_CLASSIFIER_TABLE *psaClassifiertable,S_PHS_RULE *pstPhsRule) |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1316 | { |
| 1317 | if(pstPhsRule==NULL) |
| 1318 | return FALSE; |
| 1319 | if(pstPhsRule->u8RefCnt) |
| 1320 | pstPhsRule->u8RefCnt--; |
| 1321 | if(0==pstPhsRule->u8RefCnt) |
| 1322 | { |
| 1323 | /*if(pstPhsRule->u8PHSI) |
| 1324 | //Store the currently active rule into the old rules list |
| 1325 | CreateClassifierPHSRule(uiClsId,psaClassifiertable,pstPhsRule,eOldClassifierRuleContext,pstPhsRule->u8PHSI);*/ |
| 1326 | return TRUE; |
| 1327 | } |
| 1328 | else |
| 1329 | { |
| 1330 | return FALSE; |
| 1331 | } |
| 1332 | } |
| 1333 | |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1334 | void DumpPhsRules(PPHS_DEVICE_EXTENSION pDeviceExtension) |
| 1335 | { |
| 1336 | int i,j,k,l; |
| 1337 | PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev); |
| 1338 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "\n Dumping PHS Rules : \n"); |
| 1339 | for(i=0;i<MAX_SERVICEFLOWS;i++) |
| 1340 | { |
| 1341 | S_SERVICEFLOW_ENTRY stServFlowEntry = |
| 1342 | pDeviceExtension->pstServiceFlowPhsRulesTable->stSFList[i]; |
| 1343 | if(stServFlowEntry.bUsed) |
| 1344 | { |
| 1345 | for(j=0;j<MAX_PHSRULE_PER_SF;j++) |
| 1346 | { |
| 1347 | for(l=0;l<2;l++) |
| 1348 | { |
| 1349 | S_CLASSIFIER_ENTRY stClsEntry; |
| 1350 | if(l==0) |
| 1351 | { |
| 1352 | stClsEntry = stServFlowEntry.pstClassifierTable->stActivePhsRulesList[j]; |
| 1353 | if(stClsEntry.bUsed) |
| 1354 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n Active PHS Rule : \n"); |
| 1355 | } |
| 1356 | else |
| 1357 | { |
| 1358 | stClsEntry = stServFlowEntry.pstClassifierTable->stOldPhsRulesList[j]; |
| 1359 | if(stClsEntry.bUsed) |
| 1360 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n Old PHS Rule : \n"); |
| 1361 | } |
| 1362 | if(stClsEntry.bUsed) |
| 1363 | { |
| 1364 | |
| 1365 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "\n VCID : %#X",stServFlowEntry.uiVcid); |
| 1366 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n ClassifierID : %#X",stClsEntry.uiClassifierRuleId); |
| 1367 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSRuleID : %#X",stClsEntry.u8PHSI); |
| 1368 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n****************PHS Rule********************\n"); |
| 1369 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSI : %#X",stClsEntry.pstPhsRule->u8PHSI); |
| 1370 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSFLength : %#X ",stClsEntry.pstPhsRule->u8PHSFLength); |
| 1371 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSF : "); |
| 1372 | for(k=0;k<stClsEntry.pstPhsRule->u8PHSFLength;k++) |
| 1373 | { |
| 1374 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "%#X ",stClsEntry.pstPhsRule->u8PHSF[k]); |
| 1375 | } |
| 1376 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSMLength : %#X",stClsEntry.pstPhsRule->u8PHSMLength); |
| 1377 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSM :"); |
| 1378 | for(k=0;k<stClsEntry.pstPhsRule->u8PHSMLength;k++) |
| 1379 | { |
| 1380 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "%#X ",stClsEntry.pstPhsRule->u8PHSM[k]); |
| 1381 | } |
| 1382 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSS : %#X ",stClsEntry.pstPhsRule->u8PHSS); |
| 1383 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, (DBG_LVL_ALL|DBG_NO_FUNC_PRINT), "\n PHSV : %#X",stClsEntry.pstPhsRule->u8PHSV); |
| 1384 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "\n********************************************\n"); |
| 1385 | } |
| 1386 | } |
| 1387 | } |
| 1388 | } |
| 1389 | } |
| 1390 | } |
| 1391 | |
| 1392 | |
| 1393 | //----------------------------------------------------------------------------- |
| 1394 | // Procedure: phs_decompress |
| 1395 | // |
| 1396 | // Description: This routine restores the static fields within the packet. |
| 1397 | // |
| 1398 | // Arguments: |
| 1399 | // in_buf - ptr to incoming packet buffer. |
| 1400 | // out_buf - ptr to output buffer where the suppressed header is copied. |
| 1401 | // decomp_phs_rules - ptr to PHS rule. |
| 1402 | // header_size - ptr to field which holds the phss or phsf_length. |
| 1403 | // |
| 1404 | // Returns: |
| 1405 | // size -The number of bytes of dynamic fields present with in the incoming packet |
| 1406 | // header. |
| 1407 | // 0 -If PHS rule is NULL.If PHSI is 0 indicateing packet as uncompressed. |
| 1408 | //----------------------------------------------------------------------------- |
| 1409 | |
| 1410 | int phs_decompress(unsigned char *in_buf,unsigned char *out_buf, |
| 1411 | S_PHS_RULE *decomp_phs_rules,UINT *header_size) |
| 1412 | { |
| 1413 | int phss,size=0; |
| 1414 | S_PHS_RULE *tmp_memb; |
| 1415 | int bit,i=0; |
| 1416 | unsigned char *phsf,*phsm; |
| 1417 | int in_buf_len = *header_size-1; |
| 1418 | PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev); |
| 1419 | in_buf++; |
Joe Perches | ceeb6fe | 2011-06-23 11:40:18 -0700 | [diff] [blame] | 1420 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_RECEIVE,DBG_LVL_ALL,"====>\n"); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1421 | *header_size = 0; |
| 1422 | |
| 1423 | if((decomp_phs_rules == NULL )) |
| 1424 | return 0; |
| 1425 | |
| 1426 | |
| 1427 | tmp_memb = decomp_phs_rules; |
Joe Perches | ceeb6fe | 2011-06-23 11:40:18 -0700 | [diff] [blame] | 1428 | //BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_RECEIVE,DBG_LVL_ALL,"\nDECOMP:In phs_decompress PHSI 1 %d",phsi)); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1429 | //*header_size = tmp_memb->u8PHSFLength; |
| 1430 | phss = tmp_memb->u8PHSS; |
| 1431 | phsf = tmp_memb->u8PHSF; |
| 1432 | phsm = tmp_memb->u8PHSM; |
| 1433 | |
| 1434 | if(phss > MAX_PHS_LENGTHS) |
| 1435 | phss = MAX_PHS_LENGTHS; |
Joe Perches | ceeb6fe | 2011-06-23 11:40:18 -0700 | [diff] [blame] | 1436 | //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)); |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1437 | while((phss > 0) && (size < in_buf_len)) |
| 1438 | { |
| 1439 | bit = ((*phsm << i)& SUPPRESS); |
| 1440 | |
| 1441 | if(bit == SUPPRESS) |
| 1442 | { |
| 1443 | *out_buf = *phsf; |
Joe Perches | ceeb6fe | 2011-06-23 11:40:18 -0700 | [diff] [blame] | 1444 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_RECEIVE,DBG_LVL_ALL,"\nDECOMP:In phss %d phsf %d ouput %d", |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1445 | phss,*phsf,*out_buf); |
| 1446 | } |
| 1447 | else |
| 1448 | { |
| 1449 | *out_buf = *in_buf; |
Joe Perches | ceeb6fe | 2011-06-23 11:40:18 -0700 | [diff] [blame] | 1450 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_RECEIVE,DBG_LVL_ALL,"\nDECOMP:In phss %d input %d ouput %d", |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1451 | phss,*in_buf,*out_buf); |
| 1452 | in_buf++; |
| 1453 | size++; |
| 1454 | } |
| 1455 | out_buf++; |
| 1456 | phsf++; |
| 1457 | phss--; |
| 1458 | i++; |
| 1459 | *header_size=*header_size + 1; |
| 1460 | |
| 1461 | if(i > MAX_NO_BIT) |
| 1462 | { |
| 1463 | i=0; |
| 1464 | phsm++; |
| 1465 | } |
| 1466 | } |
| 1467 | return size; |
| 1468 | } |
| 1469 | |
| 1470 | |
| 1471 | |
| 1472 | |
| 1473 | //----------------------------------------------------------------------------- |
| 1474 | // Procedure: phs_compress |
| 1475 | // |
| 1476 | // Description: This routine suppresses the static fields within the packet.Before |
| 1477 | // that it will verify the fields to be suppressed with the corresponding fields in the |
| 1478 | // phsf. For verification it checks the phsv field of PHS rule. If set and verification |
| 1479 | // succeeds it suppresses the field.If any one static field is found different none of |
| 1480 | // the static fields are suppressed then the packet is sent as uncompressed packet with |
| 1481 | // phsi=0. |
| 1482 | // |
| 1483 | // Arguments: |
| 1484 | // phs_rule - ptr to PHS rule. |
| 1485 | // in_buf - ptr to incoming packet buffer. |
| 1486 | // out_buf - ptr to output buffer where the suppressed header is copied. |
| 1487 | // header_size - ptr to field which holds the phss. |
| 1488 | // |
| 1489 | // Returns: |
| 1490 | // size-The number of bytes copied into the output buffer i.e dynamic fields |
| 1491 | // 0 -If PHS rule is NULL.If PHSV field is not set.If the verification fails. |
| 1492 | //----------------------------------------------------------------------------- |
Stephen Hemminger | 9dd47ee | 2010-11-01 12:24:00 -0400 | [diff] [blame] | 1493 | static int phs_compress(S_PHS_RULE *phs_rule,unsigned char *in_buf |
| 1494 | ,unsigned char *out_buf,UINT *header_size,UINT *new_header_size) |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1495 | { |
| 1496 | unsigned char *old_addr = out_buf; |
| 1497 | int supress = 0; |
| 1498 | PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev); |
| 1499 | if(phs_rule == NULL) |
| 1500 | { |
| 1501 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"\nphs_compress(): phs_rule null!"); |
| 1502 | *out_buf = ZERO_PHSI; |
| 1503 | return STATUS_PHS_NOCOMPRESSION; |
| 1504 | } |
| 1505 | |
| 1506 | |
| 1507 | if(phs_rule->u8PHSS <= *new_header_size) |
| 1508 | { |
| 1509 | *header_size = phs_rule->u8PHSS; |
| 1510 | } |
| 1511 | else |
| 1512 | { |
| 1513 | *header_size = *new_header_size; |
| 1514 | } |
| 1515 | //To copy PHSI |
| 1516 | out_buf++; |
| 1517 | supress = verify_suppress_phsf(in_buf,out_buf,phs_rule->u8PHSF, |
| 1518 | phs_rule->u8PHSM, phs_rule->u8PHSS, phs_rule->u8PHSV,new_header_size); |
| 1519 | |
| 1520 | if(supress == STATUS_PHS_COMPRESSED) |
| 1521 | { |
| 1522 | *old_addr = (unsigned char)phs_rule->u8PHSI; |
| 1523 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"\nCOMP:In phs_compress phsi %d",phs_rule->u8PHSI); |
| 1524 | } |
| 1525 | else |
| 1526 | { |
| 1527 | *old_addr = ZERO_PHSI; |
| 1528 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"\nCOMP:In phs_compress PHSV Verification failed"); |
| 1529 | } |
| 1530 | return supress; |
| 1531 | } |
| 1532 | |
| 1533 | |
| 1534 | //----------------------------------------------------------------------------- |
| 1535 | // Procedure: verify_suppress_phsf |
| 1536 | // |
| 1537 | // Description: This routine verifies the fields of the packet and if all the |
| 1538 | // static fields are equal it adds the phsi of that PHS rule.If any static |
| 1539 | // field differs it woun't suppress any field. |
| 1540 | // |
| 1541 | // Arguments: |
| 1542 | // rules_set - ptr to classifier_rules. |
| 1543 | // in_buffer - ptr to incoming packet buffer. |
| 1544 | // out_buffer - ptr to output buffer where the suppressed header is copied. |
| 1545 | // phsf - ptr to phsf. |
| 1546 | // phsm - ptr to phsm. |
| 1547 | // phss - variable holding phss. |
| 1548 | // |
| 1549 | // Returns: |
| 1550 | // size-The number of bytes copied into the output buffer i.e dynamic fields. |
| 1551 | // 0 -Packet has failed the verification. |
| 1552 | //----------------------------------------------------------------------------- |
| 1553 | |
Stephen Hemminger | 9dd47ee | 2010-11-01 12:24:00 -0400 | [diff] [blame] | 1554 | static int verify_suppress_phsf(unsigned char *in_buffer,unsigned char *out_buffer, |
| 1555 | unsigned char *phsf,unsigned char *phsm,unsigned int phss, |
| 1556 | unsigned int phsv,UINT* new_header_size) |
Stephen Hemminger | f8942e0 | 2010-09-08 14:46:36 -0700 | [diff] [blame] | 1557 | { |
| 1558 | unsigned int size=0; |
| 1559 | int bit,i=0; |
| 1560 | PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev); |
| 1561 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"\nCOMP:In verify_phsf PHSM - 0x%X",*phsm); |
| 1562 | |
| 1563 | |
| 1564 | if(phss>(*new_header_size)) |
| 1565 | { |
| 1566 | phss=*new_header_size; |
| 1567 | } |
| 1568 | while(phss > 0) |
| 1569 | { |
| 1570 | bit = ((*phsm << i)& SUPPRESS); |
| 1571 | if(bit == SUPPRESS) |
| 1572 | { |
| 1573 | |
| 1574 | if(*in_buffer != *phsf) |
| 1575 | { |
| 1576 | if(phsv == VERIFY) |
| 1577 | { |
| 1578 | 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); |
| 1579 | return STATUS_PHS_NOCOMPRESSION; |
| 1580 | } |
| 1581 | } |
| 1582 | else |
| 1583 | 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); |
| 1584 | } |
| 1585 | else |
| 1586 | { |
| 1587 | *out_buffer = *in_buffer; |
| 1588 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"\nCOMP:In copying_header input %d out %d",*in_buffer,*out_buffer); |
| 1589 | out_buffer++; |
| 1590 | size++; |
| 1591 | } |
| 1592 | in_buffer++; |
| 1593 | phsf++; |
| 1594 | phss--; |
| 1595 | i++; |
| 1596 | if(i > MAX_NO_BIT) |
| 1597 | { |
| 1598 | i=0; |
| 1599 | phsm++; |
| 1600 | } |
| 1601 | } |
| 1602 | BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, PHS_SEND, DBG_LVL_ALL,"\nCOMP:In verify_phsf success"); |
| 1603 | *new_header_size = size; |
| 1604 | return STATUS_PHS_COMPRESSED; |
| 1605 | } |
| 1606 | |
| 1607 | |
| 1608 | |
| 1609 | |
| 1610 | |
| 1611 | |