network_utils.hpp File Reference

#include <stdint.h>
#include <stdio.h>
#include <iostream>
#include <fstream>
#include <string>
#include <math.h>
#include <vector>
#include "ap_int.h"
#include "ap_utils.h"
#include <hls_stream.h>
#include "../../../hls/network.hpp"
#include "NTS/nts.hpp"
#include "NTS/nts_types.hpp"
#include "NTS/nts_config.hpp"
#include "NTS/nts_utils.hpp"
#include "NTS/AxisRaw.hpp"

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Typedefs
typedef TcpSessId	AppMeta

Functions
ap_uint< 32 >	bigEndianToInteger (ap_uint< 8 > *buffer, int lsb)
void	integerToBigEndian (ap_uint< 32 > n, ap_uint< 8 > *bytes)
ap_uint< 8 >	lenToKeep (ap_uint< 4 > noValidBytes)
	Returns the 'tkeep' field of an AxiWord as a function of the number of valid bytes in that word. More...
ap_uint< 4 >	keepToLen (ap_uint< 8 > keepValue)
	Swap the two bytes of a word (.i.e, 16 bits). More...

Typedef Documentation

AppMeta

typedef TcpSessId AppMeta

Application Metadata Meta-data transfered between TOE and APP.

Definition at line 76 of file network_utils.hpp.

Function Documentation

bigEndianToInteger()

ap_uint<32> bigEndianToInteger	(	ap_uint< 8 > *	buffer,
		int	lsb
	)

Definition at line 41 of file network_utils.cpp.

{
  UINT32 tmp = 0;
  tmp  = ((UINT32) buffer[lsb + 0]); 
  tmp |= ((UINT32) buffer[lsb + 1]) << 8; 
  tmp |= ((UINT32) buffer[lsb + 2]) << 16; 
  tmp |= ((UINT32) buffer[lsb + 3]) << 24; 
 
  //printf("LSB: %#1x, return: %#04x\n",(UINT8) buffer[lsb + 3], (UINT32) tmp);
 
  return tmp;
}

integerToBigEndian()

void integerToBigEndian	(	ap_uint< 32 >	n,
		ap_uint< 8 > *	bytes
	)

Definition at line 54 of file network_utils.cpp.

{
  bytes[3] = (n >> 24) & 0xFF;
  bytes[2] = (n >> 16) & 0xFF;
  bytes[1] = (n >> 8) & 0xFF;
  bytes[0] = n & 0xFF;
}

keepToLen()

ap_uint<4> keepToLen

(

ap_uint< 8 >

keepValue

)

Swap the two bytes of a word (.i.e, 16 bits).

Parameters

[in]

inpWord,the

16-bit unsigned data to swap.

Returns

a 16-bit unsigned data.

Swap the four bytes of a double-word (.i.e, 32 bits).

Parameters

[in]

inpDWord,a

32-bit unsigned data.

Returns

a 32-bit unsigned data.

Returns the number of valid bytes in an AxiWord.

Parameters

[in]

The

'tkeep' field of the AxiWord.

Definition at line 94 of file network_utils.cpp.

                                           {
  ap_uint<4> count = 0;
  switch(keepValue){
    case 0x01: count = 1; break;
    case 0x03: count = 2; break;
    case 0x07: count = 3; break;
    case 0x0F: count = 4; break;
    case 0x1F: count = 5; break;
    case 0x3F: count = 6; break;
    case 0x7F: count = 7; break;
    case 0xFF: count = 8; break;
  }
  return count;
}

lenToKeep()

ap_uint<8> lenToKeep

(

ap_uint< 4 >

noValidBytes

)

Returns the 'tkeep' field of an AxiWord as a function of the number of valid bytes in that word.

Parameters

[in]

The

number of valid bytes in an AxiWord.

Definition at line 114 of file network_utils.cpp.

                                              {
  ap_uint<8> keep = 0;
 
  switch(noValidBytes) {
    case 1: keep = 0x01; break;
    case 2: keep = 0x03; break;
    case 3: keep = 0x07; break;
    case 4: keep = 0x0F; break;
    case 5: keep = 0x1F; break;
    case 6: keep = 0x3F; break;
    case 7: keep = 0x7F; break;
    case 8: keep = 0xFF; break;
  }
  return keep;
}