The NetFPGA project is an effort to develop
open-source hardware
Open-source hardware (OSH) consists of physical artifacts of technology designed and offered by the open-design movement. Both free and open-source software (FOSS) and open-source hardware are created by this open-source culture movement and a ...
and software for
rapid prototyping
Rapid prototyping is a group of techniques used to quickly fabricate a scale model of a physical part or assembly using three-dimensional computer aided design ( CAD) data.
Construction of the part or assembly is usually done using 3D print ...
of
computer network
A computer network is a set of computers sharing resources located on or provided by network nodes. The computers use common communication protocols over digital interconnections to communicate with each other. These interconnections ar ...
devices. The project targeted academic researchers, industry users, and students. It was not the first platform of its kind in the networking community. NetFPGA used an
FPGA
A field-programmable gate array (FPGA) is an integrated circuit designed to be configured by a customer or a designer after manufacturinghence the term ''Field-programmability, field-programmable''. The FPGA configuration is generally specifi ...
-based approach to prototyping networking devices. This allows users to develop designs that are able to process packets at line-rate, a capability generally unafforded by software based approaches. NetFPGA focused on supporting developers that can share and build on each other's projects and IP building blocks.
History
The project began in 2007 as a research project at
Stanford University called the NetFPGA-1G. The 1G was originally designed as a tool to teach students about networking hardware architecture and design. The 1G platform consisted of a PCI board with a Xilinx Virtex-II pro FPGA and 4 x 1GigE interfaces feeding into it, along with a downloadable code repository containing an IP library and a few example designs. The project grew and by the end of 2010 more than 1,800 1G boards sold to over 150 educational institutions spanning 15 countries. During that growth the 1G not only gained popularity as a tool for education, but increasingly as a tool for research. By 2011 over 46 academic papers had been published regarding research that used the NetFPGA-1G platform. Additionally, over 40 projects were contributed to the 1G code repository by the end of 2010.
In 2009 work began in secrecy on the NetFPGA-10G with 4 x 10 GigE interfaces. The 10G board was also designed with a much larger FPGA, more memory, and a number of other upgrades. The first release of the platform, codenamed “Howth”, was planned for December 24, 2010, and includes a repository similar to that of the 1G, containing a small IP library and two reference designs.
From a platform design perspective, the 10G is diverging in a few significant ways from the 1G platform. For instance, the interface standards for hardware IP were completely redesigned, relying on industry standards rather than homegrown protocols. Additionally the platform relies more heavily now on industry standard tools for dealing with design composition, automated register mapping, and managing the IP library, rather than custom scripts.
The second release of the NetFPGA-10G platform is codenamed “Skellig” and is scheduled for release before second quarter 2011.
NetFPGA-1G
Board Features
*
Xilinx
Xilinx, Inc. ( ) was an American technology and semiconductor company that primarily supplied programmable logic devices. The company was known for inventing the first commercially viable field-programmable gate array (FPGA) and creating the fi ...
Virtex-II Pro 50
* 4 One
Gigabit
The bit is the most basic unit of information in computing and digital communications. The name is a portmanteau of binary digit. The bit represents a logical state with one of two possible values. These values are most commonly represent ...
interfaces (RJ45 connectors)
* 4.5
Megabyte
The megabyte is a multiple of the unit byte for digital information. Its recommended unit symbol is MB. The unit prefix ''mega'' is a multiplier of (106) in the International System of Units (SI). Therefore, one megabyte is one million bytes o ...
s
SRAM
* 64
Megabyte
The megabyte is a multiple of the unit byte for digital information. Its recommended unit symbol is MB. The unit prefix ''mega'' is a multiplier of (106) in the International System of Units (SI). Therefore, one megabyte is one million bytes o ...
s DDR2
DRAM
Dynamic random-access memory (dynamic RAM or DRAM) is a type of random-access semiconductor memory that stores each bit of data in a memory cell, usually consisting of a tiny capacitor and a transistor, both typically based on metal-oxi ...
* 2
SATA
SATA (Serial AT Attachment) is a computer bus interface that connects host adapter, host bus adapters to mass storage devices such as hard disk drives, optical drives, and solid-state drives. Serial ATA succeeded the earlier Parallel ATA (PATA) ...
-style connectors to Multi-gigabit I/O
* Standard
PCI card
Peripheral Component Interconnect (PCI) is a local computer bus for attaching hardware devices in a computer and is part of the PCI Local Bus standard. The PCI bus supports the functions found on a processor bus but in a standardized format th ...
* JTAG cable connector for Xilinx ChipScope
See http://www.digilentinc.com/Products/Detail.cfm?Prod=NETFPGA for more detailed technical information.
License
The NetFPGA-1G code is distributed using a
BSD
The Berkeley Software Distribution or Berkeley Standard Distribution (BSD) is a discontinued operating system based on Research Unix, developed and distributed by the Computer Systems Research Group (CSRG) at the University of California, Be ...
-style license.
NetFPGA-10G
Board Features
*
Xilinx
Xilinx, Inc. ( ) was an American technology and semiconductor company that primarily supplied programmable logic devices. The company was known for inventing the first commercially viable field-programmable gate array (FPGA) and creating the fi ...
Virtex-5 TX240T
FPGA
A field-programmable gate array (FPGA) is an integrated circuit designed to be configured by a customer or a designer after manufacturinghence the term ''Field-programmability, field-programmable''. The FPGA configuration is generally specifi ...
* 4 x
10 Gigabit Ethernet
10 Gigabit Ethernet (10GE, 10GbE, or 10 GigE) is a group of computer networking technologies for transmitting Ethernet frames at a rate of 10 gigabits per second. It was first defined by the IEEE 802.3ae-2002 standard. Unlike previous Et ...
interfaces (SFP+ interfaces)
* 27 MBs QDRII
SRAM
* 288 MBs
RLDRAM-II
* Two high-speed QTH Samtec connectors
* Two Platform XL Flash (128 MB)
*
Xilinx
Xilinx, Inc. ( ) was an American technology and semiconductor company that primarily supplied programmable logic devices. The company was known for inventing the first commercially viable field-programmable gate array (FPGA) and creating the fi ...
XC2C256 CPLD
* PCI Express x8 Gen2
* JTAG cable connector for Xilinx ChipScope
See http://www.hitechglobal.com/Boards/PCIExpress_SFP+.htm for more detailed technical information.
License
The NetFPGA-10G code base contains code covered under a variety of different licenses, though the default license is the GNU LGPL version 3.
Notes
{{Reflist
Networking hardware
Computer networking