White Rabbit Switch Hardware version 4
Project description
This project describes the development of the hardware of the White Rabbit Switch version 4 (WRS-v4). It is to be release under CERN OHL 2.0 license.
The White Rabbit Switch is an open hardware design of an Ethernet switch. It is a central element of a White Rabbit network and is designed as a part of the White Rabbit project.
Possible design with hot-swappable fans and redundant PSU with basic enclosure
Project information
- Preliminary study of input from the WR community, CERN IT
- Analysis of resource utilization for the candidate FPGA choice by Creotech - dedicated project
-
WRS-v4 hardare specfications, based on the following inputs:
- Study on the features for the WRS-4 by SevenSolutions
- WRS-4 main board (Hardware_Architecture) by SevenSolutions
- WR community feedback and its resolution (to be included in the documents above)
- Connector to expansion board
- Clocking FMC prototype
- Main board
- Enclosure
- Frequently Asked Questions
Project Roadmap
| Completion | Task | Deliverable | Status |
|---|---|---|---|
| 2020: end March |
Study of features, components, requirements, FPGA/CPU choice - WP1, WP2 |
Study on the features for the WRS-4 Analysis of FPGA resource utilization |
Completed |
| 2020: end May |
1. Proposal of "WRS-4 main board" - WP3 2. Verification of 1Gb transceiver - WP4.1 |
1. Doc:Proposal of WRS-v4 arch 2. Demo/prototype |
Competed Completed |
| 2020: June |
Request for feedback from WR community |
Request for comments & WRS-4 Workshop (26 June 2020) Feedback and its resolution |
Completed |
| 2020: end July |
Update of study/proposal documents | Updated documents | Completed |
| 2020: end Dec. |
1. Proper WR support for GTH - WP8 2. Verification of 10Gb transceiver - WP4.2 |
1. Release of WR cores 2. Demo |
|
| 2021: end Sept. |
1. Schematics design - WP5 2. PCB layout design (DEM) - WP6 3. Enclosure design -WP7 |
1 & 2. Prototypes of PCB 3. Prototype of enclosure |
ongoing |
| 2021: end Dec |
Board Support Package (SW) - WP10 | Prototype | |
| 2022: end March |
Production Test Suite (PTS) - WP9 | Product | |
| 2022: end Jun. |
1. Porting of gateware + clocking - WP11 2. Port of SW with minimal integration of peripherals - WP12 3. Integration of new peripherals - WP13 |
Fully functional WRS at 1GB | |
| 2022: end Dec |
Preparation of first release v1 with 1Gb for timing and data - WP14 | Release | |
| 2023: end Jun |
Add support of 10Gb to the WRS for timing (not data)- WP15 | Prototype | |
| 2024: end Jun |
Add support of 10Gb to the WRS for data (and timing)- WP17 | Prototype | |
| 2024: end Dec |
Preparation of first release v2 with 10 Gb for timing and data- WP18 | Release |
Work Packages
| WP | Task | Company | Status |
|---|---|---|---|
| 1 | Study of WRS-4 features | Seven Solutions | Completed |
| 2 | Analysis of FPGA resource utilization | Creotech | Competed |
| 3 | Proposal of WRS-4 main board architecture | Seven Solutions | Competed |
| 4 | Verification of 1Gb and 10Gb transceiver | CERN | Ongoing |
| 5 | Schematics design | Seven Solutions | Starts July 2020 |
| 5.1 | Clocking FMC design (schematics, layout, production) | Seven Solutions | done |
| 6 | PCB layout design (DEM) | CERN | |
| 7 | Enclosure design | Seven Solutions | ongoing |
| 8 | Proper WR support for GTH | CERN | |
| 9 | Production Test Suite (PTS) | ||
| 10 | Board Support Package (SW) | ||
| 11 | Porting of gateware + clocking | ||
| 12 | OS/bootloader support and port of SW with minimal integration of peripherals |
||
| 13 | Integration of new peripherals | ||
| 14 | Preparation of first release v1 | CERN | |
| 15 | Add support of 10Gb to the WRS (timing, not data | ||
| 16 | Development of formal verification of switch RTL | ||
| 17 | Add support of 10Gb for data | ||
| 18 | Preparation of first release v2 | CERN | |
| 19 | Preparation of testbed for the WRS-4 |
Contacts
Commercial producers
- WRS V4 under design, to be produced by Seven Solutions
Commercial partners involved:
General question about project
- Maciej Lipinski - CERN
Status
| Date | Event |
|---|---|
| 07-03-2014 | First ideas of a next generation WRS with one or more 10 Gbps ports |
| 01-07-2016 | First collection of requirements for V4 generation switch requested on wr-dev mailing list (archive) |
| 07-10-2018 | Second collection of requirements for V4 generation switch made on the 10th WR Workshop |
| 30-09-2018 | First "Technical proposal for the design of a new White Rabbit Switch" by Seven Solutions |
| 28-11-2018 |
Seven Solutions ordered to conduct preliminary design study and produce Technical Specification with definition of architecture and key components selection) |
| 11-07-2019 | Candidate FPGAs: Xilinx Zynq Ultrascale+ and Intel Arria 10 |
| 31-07-2019 | Creotech ordered to perform evaluation of the required resources |
| 31-07-2019 | Meeting with CERN IT experts (see notes) |
| 09-10-2019 | Creotech delivered WRS resource utilisation on Xilinx US+ FPGA |
| 19-10-2019 | Seven Solutions delivered first version of "Study on the new hardware features for the WRS-4" |
| 28-02-2020 | Final choice of FPGA: Zynq Ultrascale+ XCZU17EG-1FFVC1760E |
| 01-04-2020 | Seven Solutions delivered final version of Study on the features for the WRS-4 |
| 04-06-2020 | Start of WP5.1 (Clocking FMC design) |
| 09-06-2020 | Seven Solutions delivered final version of WRS-4 main board (Hardware_Architecture) |
| 26-06-2020 | New WRS-4 Workshop |
| 18-09-2020 | Clocking FMC schematics review |
| 16-11-2020 | WR community feedback and its resolution |
| 19-11-2020 | WRS-4 Hardware Specification published. It is based on previous feedback and used for the first prototype |
| 01-02-2021 | Main board schematics review |
| 11-02-2021 | Clocking FMC delivered to CERN |
| 11-04-2021 | Enclosure mechanical review |
| 08-10-2021 | Presentation at 11th WR Workshop: "Next generation White Rabbit Switch version 4" (pdf) |