1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/boardsupport/emulator/emulatorbsp/wpdpack/include/tme.h Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,176 @@
1.4 +/*
1.5 + * Copyright (c) 2001 - 2003
1.6 + * NetGroup, Politecnico di Torino (Italy)
1.7 + * All rights reserved.
1.8 + *
1.9 + * Redistribution and use in source and binary forms, with or without
1.10 + * modification, are permitted provided that the following conditions
1.11 + * are met:
1.12 + *
1.13 + * 1. Redistributions of source code must retain the above copyright
1.14 + * notice, this list of conditions and the following disclaimer.
1.15 + * 2. Redistributions in binary form must reproduce the above copyright
1.16 + * notice, this list of conditions and the following disclaimer in the
1.17 + * documentation and/or other materials provided with the distribution.
1.18 + * 3. Neither the name of the Politecnico di Torino nor the names of its
1.19 + * contributors may be used to endorse or promote products derived from
1.20 + * this software without specific prior written permission.
1.21 + *
1.22 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.23 + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.24 + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.25 + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
1.26 + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
1.27 + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1.28 + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1.29 + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
1.30 + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
1.31 + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
1.32 + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.33 + *
1.34 + */
1.35 +
1.36 +#ifndef __tme_include_
1.37 +#define __tme_include_
1.38 +
1.39 +#ifdef WIN_NT_DRIVER
1.40 +#include "ndis.h"
1.41 +#else
1.42 +#include <windows.h>
1.43 +#endif /*WIN_NT_DRIVER*/
1.44 +
1.45 +#include "memory_t.h"
1.46 +#include "time_calls.h"
1.47 +
1.48 +
1.49 +/* error codes */
1.50 +#define TME_ERROR 0
1.51 +#define TME_SUCCESS 1
1.52 +#define TME_TRUE 2
1.53 +#define TME_FALSE 3
1.54 +
1.55 +/* some constants */
1.56 +#define DEFAULT_MEM_EX_SIZE 65536
1.57 +#define MAX_TME_DATA_BLOCKS 4
1.58 +#define TME_NONE_ACTIVE 0xffffffff
1.59 +#define DELTA_READ 2 /* secs */
1.60 +
1.61 +#define TME_LUT_ENTRIES 0x00000000
1.62 +#define TME_MAX_FILL_STATE 0x00000001 /*potrebbe servire per un thread a passive level!?!?! */
1.63 +#define TME_REHASHING_VALUE 0x00000002
1.64 +#define TME_KEY_LEN 0x00000003
1.65 +#define TME_SHARED_MEMORY_BLOCKS 0x00000004
1.66 +#define TME_FILLED_ENTRIES 0x00000005
1.67 +#define TME_BLOCK_SIZE 0x00000006
1.68 +#define TME_EXTRA_SEGMENT_SIZE 0x00000007
1.69 +#define TME_LOOKUP_CODE 0x00000008
1.70 +#define TME_OUT_LUT_EXEC 0x00000009
1.71 +#define TME_FILLED_BLOCKS 0x0000000a
1.72 +#define TME_DEFAULT_EXEC 0x0000000b
1.73 +#define TME_LUT_BASE_ADDRESS 0x0000000c
1.74 +#define TME_SHARED_MEMORY_BASE_ADDRESS 0x0000000d
1.75 +#define TME_EXTRA_SEGMENT_BASE_ADDRESS 0x0000000e
1.76 +#define TME_LAST_FOUND 0x0000000f /* contains the offset of the last found entry */
1.77 +#define TME_LAST_FOUND_BLOCK 0x00000010
1.78 +/* TME default values */
1.79 +#define TME_LUT_ENTRIES_DEFAULT 32007
1.80 +#define TME_REHASHING_VALUE_DEFAULT 1
1.81 +#define TME_SHARED_MEMORY_BLOCKS_DEFAULT 16000
1.82 +#define TME_BLOCK_SIZE_DEFAULT 64
1.83 +#define TME_EXTRA_SEGMENT_SIZE_DEFAULT 0
1.84 +#define TME_LOOKUP_CODE_DEFAULT 0
1.85 +#define TME_OUT_LUT_EXEC_DEFAULT 0
1.86 +#define TME_DEFAULT_EXEC_DEFAULT 0
1.87 +#define TME_MAX_FILL_STATE_DEFAULT 15000
1.88 +
1.89 +#define IS_VALIDATED(src,index) (src&(1<<index))
1.90 +
1.91 +#define VALIDATE(src,index) src|=(1<<index);
1.92 +
1.93 +
1.94 +#define FORCE_NO_DELETION(timestamp) (struct timeval*)(timestamp)->tv_sec=0x7fffffff;
1.95 +
1.96 +struct __TME_DATA;
1.97 +
1.98 +/* TME callback prototypes */
1.99 +typedef uint32 (*lut_fcn)(uint8 *key, struct __TME_DATA *data,MEM_TYPE *mem_ex, struct time_conv *time_ref );
1.100 +typedef uint32 (*exec_fcn)(uint8 *block, uint32 pkt_size, struct __TME_DATA *data, MEM_TYPE *mem_ex, uint8 *mem_data);
1.101 +
1.102 +/* DO NOT MODIFY THIS STRUCTURE!!!! GV */
1.103 +typedef struct __RECORD
1.104 +
1.105 +{
1.106 + uint32 block;
1.107 + uint32 exec_fcn;
1.108 +}
1.109 + RECORD, *PRECORD;
1.110 +
1.111 +/* TME data registers */
1.112 +struct __TME_DATA
1.113 +{
1.114 + uint32 lut_entries;
1.115 + uint32 max_fill_state;
1.116 + uint32 rehashing_value;
1.117 + uint32 key_len;
1.118 + uint32 shared_memory_blocks;
1.119 + uint32 filled_entries;
1.120 + uint32 block_size;
1.121 + uint32 extra_segment_size;
1.122 + uint32 filled_blocks;
1.123 + lut_fcn lookup_code;
1.124 + uint32 default_exec;
1.125 + uint32 out_lut_exec;
1.126 + uint8 *lut_base_address;
1.127 + uint8 *shared_memory_base_address;
1.128 + uint8 *extra_segment_base_address;
1.129 + struct timeval last_read;
1.130 + uint32 enable_deletion;
1.131 + uint8 *last_found;
1.132 +};
1.133 +
1.134 +typedef struct __TME_DATA TME_DATA,*PTME_DATA;
1.135 +
1.136 +
1.137 +
1.138 +/* TME core */
1.139 +typedef struct __TME_CORE
1.140 +{
1.141 + uint32 working;
1.142 + uint32 active;
1.143 + uint32 validated_blocks;
1.144 + TME_DATA block_data[MAX_TME_DATA_BLOCKS];
1.145 + uint32 active_read;
1.146 +
1.147 +} TME_CORE, *PTME_CORE;
1.148 +
1.149 +static __inline int32 IS_DELETABLE(void *timestamp, TME_DATA *data)
1.150 +{
1.151 + struct timeval *ts=(struct timeval*)timestamp;
1.152 +
1.153 + if (data->enable_deletion==FALSE)
1.154 + return FALSE;
1.155 + if (data->filled_entries<data->max_fill_state)
1.156 + return FALSE;
1.157 + if ((ts->tv_sec+DELTA_READ)<data->last_read.tv_sec)
1.158 + return TRUE;
1.159 + return FALSE;
1.160 +}
1.161 +
1.162 +/* functions to manage TME */
1.163 +uint32 init_tme_block(TME_CORE *tme, uint32 block);
1.164 +uint32 validate_tme_block(MEM_TYPE *mem_ex, TME_CORE *tme, uint32 block, uint32 mem_ex_offset);
1.165 +uint32 lookup_frontend(MEM_TYPE *mem_ex, TME_CORE *tme,uint32 mem_ex_offset, struct time_conv *time_ref);
1.166 +uint32 execute_frontend(MEM_TYPE *mem_ex, TME_CORE *tme, uint32 pkt_size,uint32 offset);
1.167 +uint32 set_active_tme_block(TME_CORE *tme, uint32 block);
1.168 +uint32 init_extended_memory(uint32 size, MEM_TYPE *mem_ex);
1.169 +uint32 reset_tme(TME_CORE *tme);
1.170 +uint32 get_tme_block_register(TME_DATA *data,MEM_TYPE *mem_ex,uint32 rgstr,uint32 *rval);
1.171 +uint32 set_tme_block_register(TME_DATA *data,MEM_TYPE *mem_ex,uint32 rgstr,uint32 value, int32 init);
1.172 +uint32 set_active_read_tme_block(TME_CORE *tme, uint32 block);
1.173 +uint32 set_autodeletion(TME_DATA *data, uint32 value);
1.174 +
1.175 +/* function mappers */
1.176 +lut_fcn lut_fcn_mapper(uint32 index);
1.177 +exec_fcn exec_fcn_mapper(uint32 index);
1.178 +
1.179 +#endif
1.180 \ No newline at end of file