FlexPipe: Fast, Flexible and Scalable Packet Processing for High-Performance SmartNICs

Klajd Zyla, Marco Liess, Thomas Wild, Andreas Herkersdorf

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Data centers have been struggling to provide the necessary processing capacity to handle the surging rate of network traffic that is generated in an increasingly connected and service-oriented world. As a result, SmartNICs play an even more important role than before as they can offload various network applications and hence free CPU resources for application-layer processing, increase performance and reduce processing time. However, they often do not support flows with different offload requirements and cannot dynamically allocate offloads in run-time. In order to address these limitations, we propose FlexPipe, a fast, flexible and scalable packet-processing architecture for high-performance SmartNICs. Our design enables low-latency and runtime-reconfigurable packet forwarding at high traffic rates with minimal area overhead. Furthermore, it provides load-aware packet steering toward multiple offload units of the same type for low-bandwidth offloads. We implement a prototype of FlexPipe in Verilog and validate it via cycle-accurate register-transfer level simulations. Our evaluation results show that FlexPipe can process packets of arbitrary size with different offload requirements at line rate and on average 1.9x faster than a SmartNIC with a predefined sequence of offloads and 1.8x faster than PANIC, a flexible state-of-the-art SmartNIC.

Original languageEnglish
Title of host publication2023 IFIP/IEEE 31st International Conference on Very Large Scale Integration, VLSI-SoC 2023
PublisherIEEE Computer Society
ISBN (Electronic)9798350325997
DOIs
StatePublished - 2023
Event31st IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2023 - Dubai, United Arab Emirates
Duration: 16 Oct 202318 Oct 2023

Publication series

NameIEEE/IFIP International Conference on VLSI and System-on-Chip, VLSI-SoC
ISSN (Print)2324-8432
ISSN (Electronic)2324-8440

Conference

Conference31st IFIP/IEEE International Conference on Very Large Scale Integration, VLSI-SoC 2023
Country/TerritoryUnited Arab Emirates
CityDubai
Period16/10/2318/10/23

Keywords

  • 6G
  • Load balancing
  • Packet processing
  • SDN
  • SmartNICs

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