diff options
Diffstat (limited to 'board/evb64260/eth_addrtbl.c')
| -rw-r--r-- | board/evb64260/eth_addrtbl.c | 249 |
1 files changed, 122 insertions, 127 deletions
diff --git a/board/evb64260/eth_addrtbl.c b/board/evb64260/eth_addrtbl.c index ef463c329..0abc7d453 100644 --- a/board/evb64260/eth_addrtbl.c +++ b/board/evb64260/eth_addrtbl.c @@ -13,66 +13,68 @@ #ifdef CONFIG_GT_USE_MAC_HASH_TABLE -static u32 addressTableHashMode[ GAL_ETH_DEVS ] = { 0, }; -static u32 addressTableHashSize[ GAL_ETH_DEVS ] = { 0, }; -static addrTblEntry *addressTableBase[ GAL_ETH_DEVS ] = { 0, }; -static void *realAddrTableBase[ GAL_ETH_DEVS ] = { 0, }; +static u32 addressTableHashMode[GAL_ETH_DEVS] = { 0, }; +static u32 addressTableHashSize[GAL_ETH_DEVS] = { 0, }; +static addrTblEntry *addressTableBase[GAL_ETH_DEVS] = { 0, }; +static void *realAddrTableBase[GAL_ETH_DEVS] = { 0, }; -static const u32 hashLength[ 2 ] = { - (0x8000), /* 8K * 4 entries */ - (0x8000/16), /* 512 * 4 entries */ +static const u32 hashLength[2] = { + (0x8000), /* 8K * 4 entries */ + (0x8000 / 16), /* 512 * 4 entries */ }; /* Initialize the address table for a port, if needed */ -unsigned int initAddressTable( u32 port, u32 hashMode, u32 hashSizeSelector) +unsigned int initAddressTable (u32 port, u32 hashMode, u32 hashSizeSelector) { - unsigned int tableBase; + unsigned int tableBase; - if( port < 0 || port >= GAL_ETH_DEVS ) { - printf("%s: Invalid port number %d\n", __FUNCTION__, port ); + if (port < 0 || port >= GAL_ETH_DEVS) { + printf ("%s: Invalid port number %d\n", __FUNCTION__, port); return 0; } if (hashMode > 1) { - printf("%s: Invalid Hash Mode %d\n", __FUNCTION__, port ); + printf ("%s: Invalid Hash Mode %d\n", __FUNCTION__, port); return 0; } - if ( realAddrTableBase[port] && - ( addressTableHashSize[port] != hashSizeSelector )) { + if (realAddrTableBase[port] && + (addressTableHashSize[port] != hashSizeSelector)) { /* we have been here before, * but now we want a different sized table */ - free( realAddrTableBase[port] ); + free (realAddrTableBase[port]); realAddrTableBase[port] = 0; addressTableBase[port] = 0; } - tableBase = (unsigned int)addressTableBase[port]; + tableBase = (unsigned int) addressTableBase[port]; /* we get called for every probe, so only do this once */ - if ( !tableBase ) { - int bytes = hashLength[hashSizeSelector] * sizeof(addrTblEntry); + if (!tableBase) { + int bytes = + hashLength[hashSizeSelector] * sizeof (addrTblEntry); - tableBase = (unsigned int)realAddrTableBase[port] = malloc(bytes+64); + tableBase = (unsigned int) realAddrTableBase[port] = + malloc (bytes + 64); - if(!tableBase) - { - printf("%s: alloc memory failed \n", __FUNCTION__); + if (!tableBase) { + printf ("%s: alloc memory failed \n", __FUNCTION__); return 0; } - /* align to octal byte */ - if(tableBase&63) tableBase=(tableBase+63) & ~63; + /* align to octal byte */ + if (tableBase & 63) + tableBase = (tableBase + 63) & ~63; - addressTableHashMode[port] = hashMode; - addressTableHashSize[port] = hashSizeSelector; - addressTableBase[port] = (addrTblEntry *)tableBase; + addressTableHashMode[port] = hashMode; + addressTableHashSize[port] = hashSizeSelector; + addressTableBase[port] = (addrTblEntry *) tableBase; - memset((void *)tableBase,0,bytes); + memset ((void *) tableBase, 0, bytes); } - return tableBase; + return tableBase; } /* @@ -87,61 +89,61 @@ unsigned int initAddressTable( u32 port, u32 hashMode, u32 hashSizeSelector) * Outputs * return the calculated entry. */ -u32 -hashTableFunction( u32 macH, u32 macL, u32 HashSize, u32 hash_mode) +u32 hashTableFunction (u32 macH, u32 macL, u32 HashSize, u32 hash_mode) { - u32 hashResult; - u32 addrH; - u32 addrL; - u32 addr0; - u32 addr1; - u32 addr2; - u32 addr3; - u32 addrHSwapped; - u32 addrLSwapped; + u32 hashResult; + u32 addrH; + u32 addrL; + u32 addr0; + u32 addr1; + u32 addr2; + u32 addr3; + u32 addrHSwapped; + u32 addrLSwapped; - addrH = NIBBLE_SWAPPING_16_BIT( macH ); - addrL = NIBBLE_SWAPPING_32_BIT( macL ); + addrH = NIBBLE_SWAPPING_16_BIT (macH); + addrL = NIBBLE_SWAPPING_32_BIT (macL); - addrHSwapped = FLIP_4_BITS( addrH & 0xf ) - + ((FLIP_4_BITS( (addrH >> 4) & 0xf)) << 4) - + ((FLIP_4_BITS( (addrH >> 8) & 0xf)) << 8) - + ((FLIP_4_BITS( (addrH >> 12) & 0xf)) << 12); + addrHSwapped = FLIP_4_BITS (addrH & 0xf) + + ((FLIP_4_BITS ((addrH >> 4) & 0xf)) << 4) + + ((FLIP_4_BITS ((addrH >> 8) & 0xf)) << 8) + + ((FLIP_4_BITS ((addrH >> 12) & 0xf)) << 12); - addrLSwapped = FLIP_4_BITS( addrL & 0xf ) - + ((FLIP_4_BITS( (addrL >> 4) & 0xf)) << 4) - + ((FLIP_4_BITS( (addrL >> 8) & 0xf)) << 8) - + ((FLIP_4_BITS( (addrL >> 12) & 0xf)) << 12) - + ((FLIP_4_BITS( (addrL >> 16) & 0xf)) << 16) - + ((FLIP_4_BITS( (addrL >> 20) & 0xf)) << 20) - + ((FLIP_4_BITS( (addrL >> 24) & 0xf)) << 24) - + ((FLIP_4_BITS( (addrL >> 28) & 0xf)) << 28); + addrLSwapped = FLIP_4_BITS (addrL & 0xf) + + ((FLIP_4_BITS ((addrL >> 4) & 0xf)) << 4) + + ((FLIP_4_BITS ((addrL >> 8) & 0xf)) << 8) + + ((FLIP_4_BITS ((addrL >> 12) & 0xf)) << 12) + + ((FLIP_4_BITS ((addrL >> 16) & 0xf)) << 16) + + ((FLIP_4_BITS ((addrL >> 20) & 0xf)) << 20) + + ((FLIP_4_BITS ((addrL >> 24) & 0xf)) << 24) + + ((FLIP_4_BITS ((addrL >> 28) & 0xf)) << 28); - addrH = addrHSwapped; - addrL = addrLSwapped; + addrH = addrHSwapped; + addrL = addrLSwapped; - if( hash_mode == 0 ) { - addr0 = (addrL >> 2) & 0x03f; - addr1 = (addrL & 0x003) | ((addrL >> 8) & 0x7f) << 2; - addr2 = (addrL >> 15) & 0x1ff; - addr3 = ((addrL >> 24) & 0x0ff) | ((addrH & 1) << 8); - } else { - addr0 = FLIP_6_BITS( addrL & 0x03f ); - addr1 = FLIP_9_BITS( ((addrL >> 6) & 0x1ff)); - addr2 = FLIP_9_BITS( (addrL >> 15) & 0x1ff); - addr3 = FLIP_9_BITS( (((addrL >> 24) & 0x0ff) | ((addrH & 0x1) << 8))); - } + if (hash_mode == 0) { + addr0 = (addrL >> 2) & 0x03f; + addr1 = (addrL & 0x003) | ((addrL >> 8) & 0x7f) << 2; + addr2 = (addrL >> 15) & 0x1ff; + addr3 = ((addrL >> 24) & 0x0ff) | ((addrH & 1) << 8); + } else { + addr0 = FLIP_6_BITS (addrL & 0x03f); + addr1 = FLIP_9_BITS (((addrL >> 6) & 0x1ff)); + addr2 = FLIP_9_BITS ((addrL >> 15) & 0x1ff); + addr3 = FLIP_9_BITS ((((addrL >> 24) & 0x0ff) | + ((addrH & 0x1) << 8))); + } - hashResult = (addr0 << 9) | (addr1 ^ addr2 ^ addr3); + hashResult = (addr0 << 9) | (addr1 ^ addr2 ^ addr3); - if( HashSize == _8K_TABLE ) { - hashResult = hashResult & 0xffff; - } else { - hashResult = hashResult & 0x07ff; - } + if (HashSize == _8K_TABLE) { + hashResult = hashResult & 0xffff; + } else { + hashResult = hashResult & 0x07ff; + } - return( hashResult ); + return (hashResult); } @@ -160,66 +162,59 @@ hashTableFunction( u32 macH, u32 macL, u32 HashSize, u32 hash_mode) * TRUE if success. * FALSE if table full */ -int -addAddressTableEntry( - u32 port, - u32 macH, - u32 macL, - u32 rd, - u32 skip ) +int addAddressTableEntry (u32 port, u32 macH, u32 macL, u32 rd, u32 skip) { - addrTblEntry *entry; - u32 newHi; - u32 newLo; - u32 i; + addrTblEntry *entry; + u32 newHi; + u32 newLo; + u32 i; - newLo = (((macH >> 4) & 0xf) << 15) - | (((macH >> 0) & 0xf) << 11) - | (((macH >> 12) & 0xf) << 7) - | (((macH >> 8) & 0xf) << 3) - | (((macL >> 20) & 0x1) << 31) - | (((macL >> 16) & 0xf) << 27) - | (((macL >> 28) & 0xf) << 23) - | (((macL >> 24) & 0xf) << 19) - | (skip << SKIP_BIT) | (rd << 2) | VALID; + newLo = (((macH >> 4) & 0xf) << 15) + | (((macH >> 0) & 0xf) << 11) + | (((macH >> 12) & 0xf) << 7) + | (((macH >> 8) & 0xf) << 3) + | (((macL >> 20) & 0x1) << 31) + | (((macL >> 16) & 0xf) << 27) + | (((macL >> 28) & 0xf) << 23) + | (((macL >> 24) & 0xf) << 19) + | (skip << SKIP_BIT) | (rd << 2) | VALID; - newHi = (((macL >> 4) & 0xf) << 15) - | (((macL >> 0) & 0xf) << 11) - | (((macL >> 12) & 0xf) << 7) - | (((macL >> 8) & 0xf) << 3) - | (((macL >> 21) & 0x7) << 0); + newHi = (((macL >> 4) & 0xf) << 15) + | (((macL >> 0) & 0xf) << 11) + | (((macL >> 12) & 0xf) << 7) + | (((macL >> 8) & 0xf) << 3) + | (((macL >> 21) & 0x7) << 0); - /* - * Pick the appropriate table, start scanning for free/reusable - * entries at the index obtained by hashing the specified MAC address - */ - entry = addressTableBase[port]; - entry += hashTableFunction( macH, macL, addressTableHashSize[port], - addressTableHashMode[port] ); - for( i = 0; i < HOP_NUMBER; i++, entry++ ) { - if( !(entry->lo & VALID) /*|| (entry->lo & SKIP)*/ ) { - break; - } else { /* if same address put in same position */ - if( ((entry->lo & 0xfffffff8) == (newLo & 0xfffffff8)) - && (entry->hi == newHi) ) - { - break; - } + /* + * Pick the appropriate table, start scanning for free/reusable + * entries at the index obtained by hashing the specified MAC address + */ + entry = addressTableBase[port]; + entry += hashTableFunction (macH, macL, addressTableHashSize[port], + addressTableHashMode[port]); + for (i = 0; i < HOP_NUMBER; i++, entry++) { + if (!(entry->lo & VALID) /*|| (entry->lo & SKIP) */ ) { + break; + } else { /* if same address put in same position */ + if (((entry->lo & 0xfffffff8) == (newLo & 0xfffffff8)) + && (entry->hi == newHi)) { + break; + } + } } - } - if( i == HOP_NUMBER ) { - PRINTF( "addGT64260addressTableEntry: table section is full\n" ); - return( FALSE ); - } + if (i == HOP_NUMBER) { + PRINTF ("addGT64260addressTableEntry: table section is full\n"); + return (FALSE); + } - /* - * Update the selected entry - */ - entry->hi = newHi; - entry->lo = newLo; - DCACHE_FLUSH_N_SYNC( (u32)entry, MAC_ENTRY_SIZE ); - return( TRUE ); + /* + * Update the selected entry + */ + entry->hi = newHi; + entry->lo = newLo; + DCACHE_FLUSH_N_SYNC ((u32) entry, MAC_ENTRY_SIZE); + return (TRUE); } #endif /* CONFIG_GT_USE_MAC_HASH_TABLE */ |