Flit< DataWidth, DestWidthPerHop, MaxHops, PacketIdWidth, FlitId, StoreForward > Class Template Reference

Parameterized implementation of a network flit. More...

#include <nvhls_packet.h>

Inheritance diagram for Flit< DataWidth, DestWidthPerHop, MaxHops, PacketIdWidth, FlitId, StoreForward >:

Public Types
enum	{   data_width = DataWidth , dest_width_per_hop = DestWidthPerHop , dest_width = DestWidthPerHop * MaxHops , packet_id_width = PacketIdWidth ,   flit_id_width = FlitId::width , width = data_width + dest_width + packet_id_width + flit_id_width , data_start_bit = 0 , data_end_bit = data_width - 1 ,   dest_start_bit = data_end_bit + 1 , dest_end_bit = dest_start_bit + dest_width - 1 , packet_id_start_bit = dest_end_bit + 1 , packet_id_end_bit = packet_id_start_bit + packet_id_width - 1 ,   flit_id_start_bit = packet_id_end_bit + 1 , flit_id_end_bit = flit_id_start_bit + flit_id_width - 1 }

Public Member Functions
	Flit (const Flit &other)
Flit &	operator= (const Flit &other)
void	reset ()
	NVUINTW (data_width) data
	NVUINTW (dest_width) dest
	NVUINTW (packet_id_width) packet_id
template<unsigned int Size>
void	Marshall (Marshaller< Size > &m)

Public Attributes
FlitId	flit_id

Detailed Description

template<int DataWidth, int DestWidthPerHop, int MaxHops, int PacketIdWidth, class FlitId>
class Flit< DataWidth, DestWidthPerHop, MaxHops, PacketIdWidth, FlitId, StoreForward >

Parameterized implementation of a network flit.

Template Parameters

DataWidth	Width of data field in a flit.
DestWidthPerHop	Number of bits required to encode destination field for one hop in a packet.
MaxHops	Maximum number of hops. For source routing, this field is used along with DestWidthPerHop field to calculate total width of destination field to be encoded in a packet. (default: 1)
PacketIdWidth	Width of packet id field. PacketID acts a an identified for every hop in a packet. (default: 0)

Overview

• Flit class implements a parameterized network flit.
• Flit format varies based on the type of router.
• StoreForward router flit format: <FlitID>:<PACKET-ID>:<DEST>:<DATA>
• Wormhole router flit format: <FlitID>:<PACKET-ID>:<DATA>. <DEST> is encoded in header flit.
• PacketID field is optional and can be removed by setting PacketIdWidth to 0.

A Simple Example

#include <nvhls_packet.h>
 
...
typedef Flit<FLIT_DATAWIDTH,0,0,PACKETIDWIDTH,FLITIDTYPE,WormHole> Flit_t;
Flit_t flit;
flit.data = 0xdeadbeef; // Initialize data
flit.flit_id.set(FlitId2bit::BODY);
    ...

Definition at line 284 of file nvhls_packet.h.

Member Enumeration Documentation

anonymous enum

template<int DataWidth, int DestWidthPerHop, int MaxHops, int PacketIdWidth, class FlitId >

anonymous enum

Definition at line 301 of file nvhls_packet.h.

Constructor & Destructor Documentation

Flit()

template<int DataWidth, int DestWidthPerHop, int MaxHops, int PacketIdWidth, class FlitId >

Flit< DataWidth, DestWidthPerHop, MaxHops, PacketIdWidth, FlitId, StoreForward >::Flit

(

)

Definition at line 345 of file nvhls_packet.h.

Member Function Documentation

operator=()

template<int DataWidth, int DestWidthPerHop, int MaxHops, int PacketIdWidth, class FlitId >

Flit & Flit< DataWidth, DestWidthPerHop, MaxHops, PacketIdWidth, FlitId, StoreForward >::operator= ( const Flit< DataWidth, DestWidthPerHop, MaxHops, PacketIdWidth, FlitId, StoreForward > &  other )

inline

Definition at line 291 of file nvhls_packet.h.

reset()

template<int DataWidth, int DestWidthPerHop, int MaxHops, int PacketIdWidth, class FlitId >

void Flit< DataWidth, DestWidthPerHop, MaxHops, PacketIdWidth, FlitId, StoreForward >::reset

(

)

Definition at line 335 of file nvhls_packet.h.

Marshall()

template<int DataWidth, int DestWidthPerHop, int MaxHops, int PacketIdWidth, class FlitId >

template<unsigned int Size>

void Flit< DataWidth, DestWidthPerHop, MaxHops, PacketIdWidth, FlitId, StoreForward >::Marshall ( Marshaller< Size > &  m )

inline

Definition at line 324 of file nvhls_packet.h.

Member Data Documentation

flit_id

template<int DataWidth, int DestWidthPerHop, int MaxHops, int PacketIdWidth, class FlitId >

FlitId Flit< DataWidth, DestWidthPerHop, MaxHops, PacketIdWidth, FlitId, StoreForward >::flit_id

Definition at line 321 of file nvhls_packet.h.

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The documentation for this class was generated from the following file:

• nvhls_packet.h