P4 programmable nic Our tool can a) analyze a legacy NF in its unported form, predicting its performance characteristics on a SmartNIC (e. p4 A4. I am just wondering whether this can have any impact on the P4’s development itself or not. com site in several ways. from publication: A Survey on TCP Enhancements using P4-programmable Devices | The increasing performance requirements of today’s Internet Instead of going into the P4 programmable pipelines, we are going to focus on the other features. PNA’s primary objective is to provide P4 capabilities for deploying packet processing functions on NICs. It enables P4 programmers to create portable P4 programs that can be compiled and executable across various NIC devices. 3 payload. 2: Testbed setup consisting of P4 programmable Smart-NIC and packet generator. The network ports, packet queues, and (optional) inline accelerators are fixed-function blocks that can be configured by the control plane, but are not intended to be See how P4-programmable smartNIC with emulated OVS-based leaf-spine fabric can be controlled by a single SDN solution (ONOS) using different protocols. The task we have That flexibility and programmability mean that those organizations deploying Exotic NICs will have teams dedicated to extracting value from the NIC through programming new logic for the FPGA. Educational Working Group The education working group has put together a Getting Started page that curates the links for tutorials, hardware compatibility, videos, and P4 is a domain-specific programming language used to describe how a programmable forwarding hardware processes packets, which can be an ASIC, a FPGA or a NIC and so on. Posted by Mario Baldi on February 24, 2020 Pensando Systems recently introduced a Distributed Services Card (DSC) based on a custom, fully-programmable processor optimized to execute P4 programs. Brent Stephens, et. I have a lot more research to do here, but is there an easy answer in terms of picking a "well AMD plans to support the forthcoming Ultra Ethernet Transport (UET) protocol in future P4-programmable NICs, which come from the Pensando acquisition. The Portable NIC Architecture (PNA) Model has three programmable P4 blocks and several fixed-function blocks, as shown in Figure 1. Agilio ® Netronome NIC applications with P4 and Micro-C. The de-facto language to program the data plane is Programming Protocol-independent Packet Processors (P4). This is likely to be more than any individual one of the customers wants. In Proc. A SmartNIC, or smart network interface card (NIC), is a programmable accelerator that makes data center networking, security and storage efficient and flexible. The UEC-ready AMD Pensando Pollara 400, powered by the AMD P4 Programmable engine, is the industry’s first UEC-ready AI NIC. The recordings of the keynotes and all of the plenaries and The HLM-1100 and HLM-1101 are programmable switch blades that features Intel® TofinoTM P4 programmable Ethernet switch ASICs for improved performance. Also, in the future, any impact on the Today we’re talking about P4 programmable, composable, and portable SmartNICs that install into programmable logic, creating a highly efficient collection of accelerated packet-processing pipelines. In Proceedings of the 26th Symposium on Hi! I have a question about the PNA architecture. It combines 32 x 100G QSFP28 ports along with dual Intel scalable Xeon processors, a P4 programmable Intel P4: Programming Protocol-Independent Packet Processors Pat Bossharty, Dan Daly*, Glen Gibby, Martin Izzardy, Nick McKeownz, Jennifer Rexford**, Cole Schlesinger**, Dan Talaycoy, Amin Vahdat{, George Varghesex, David Walker** yBarefoot Networks *Intel zStanford University **Princeton University {Google xMicrosoft Research "Now, we're starting to see it move toward the data plane itself being programmable, with languages like P4. I think P4-programmable pipelines and is designed to run in an ASIC at 200Gb/s with each packet processed end-to-end in KV-Direct: High-Performance In-Memory Key-Value Store with Programmable NIC. , p4-DPDK and p4tc). Brand Name: Core i9 Altera FPGA AI NICs and SmartNICs are network adapter cards with hardware programmable accelerators and Ethernet From a data plane programmability perspective, the pipeline definition (e. Use-cases common for Smart NICs or Programmable switches Data distribution offload. 12 . The switch needs to block the transmission of frames when all credits have been consumed. p4 A3. Contribute to praveingk/nfpnic development by creating an account on GitHub. Introduction Programming Protocol-independent Packet Processors (P4) is a domain-specific language for network devices, specifying how data plane devices (switches, NICs, routers, filters, etc. PSA defines a library of types, P4 16 externs for frequently used constructs such as counters, meters, and registers, and a set of “packet paths” that enable you to write P4 programs that control the flow of packets in a packet switch that . p4 SW-HW Hybrid For long, P4's mantra was that table entries could only be updated by the control plane. edu Stanford University Changhoon Kim June 24, 2021 MENLO PARK, Calif. Low-Latency, Programmable Transport Layer for NICs | Transport protocols can be implemented in NIC (Network Interface While a P4-programmable device might contain special features to handle P4-programmable IPSec • Both Tunnel and Transport mode IPSec traffic, along with non-IPSec traffic, can be offloaded simultaneously on the same NIC. A P4 P4-programmable pipeline in any NIC that offloads the transport 1We prototype our design by building upon the nanoPU RISC-V design repository [27]. SLB, firewalls Gomez J Kfoury E Crichigno J Srivastava G (2022) A survey on TCP enhancements using P4-programmable devices Computer Networks: The International Journal of Computer and Telecommunications Networking 10. 2 shows the built setup. The Portable NIC Architecture (PNA) Model has four programmable P4 blocks and several fixed-function blocks, as shown in Figure 1. Pensando is currently offering the DSC in two variants: This paper also discusses the usage of P4-programmable NICs to o oad the server’s resources. , Portable NIC Architecture) [13] are also This P4 blog was contributed by Sunil Ahluwalia, Sr. •Two of the first assignments I was given were: •Work with Intel’s P4 compiler team to advise them on P4-related topics, e. Moreover, P4-programmable NICs can offload the 7. I would like to know if P4, which stands for ”Programming Protocol-independent Packet Processors,” is a high-level programming language designed specifically for networking applications. 3 Benefits of P4 + FPGAs • FPGAs are just another software programmable HW • Deterministic performance, low jitter and low latency • Dynamic allocation of FPGA resources to P4 pipeline • Small number of large tables, large number of small tables • SmartNICs are on the rise as a packet processing platform, with the trend towards a uniform P4 programming model. A programmable P4 switch ASIC supports both new networking protocols and can run packet processing applications such as firewalls and load balancers. P4NFV [14] and Hyper [15] are proposals for running NFs on both software and hardware platforms to improve performance. P4 program) will need to be adapted to the NIC architecture. An agent will need to Programmable Plane Using P4 to realize programmability in Transport 14 NIC Connection State struct ConnectionState {bit<16> congestion_window; bit<32> last_ack_sequence_number;}; San Jose, CA April 26-28, 2022 Challenges –Network Nodes • Deal with very large volumes of traffic • Short time to execute processing • Designed for forwarding packets • «Simple», fixed processing (ASIC) • Do P4-based switches offer an opportunity? • Programmable Save the date for September 15th and join us at the webinar on P4-programmable smartNIC controlled by ONOS! You will see a VNF offloading use case in practise - a custom P4 implementation of an Distributed Services Card with P4 programmable software-defined networking pipeline This document describes what we tested, how we tested, and what we found. Another P4_16 architecture like PNA (Portable NIC Architecture) can differ even more from v1model and TNA, in that it isn’t Your question is fairly general, so my reply will also be 🙂 A non-programmable switch or NIC in a network will, in many cases, implement a “kitchen sink” kind of feature set chosen by the ASIC developer, based upon what some combination of their most common customers want. One of the most exciting topics in current networking is the development of fully programable switching ASICs. The P4 processor is implemented with the AMD (Xilinx) VitisNetP4 IP core. Hence You also have the opportunity to learn by interacting with the P4 community on the P4 forum, slack, and email lists. It supports the next-gen RDMA software and is backed by an open ecosystem of networking. com Search You can easily search the entire Intel. These compute blocks can access host memory as well as memory in remote peers through the RDMA offload engine. comnet. Such a feature enables the development of novel schemes that operate and scale faster than non-programmable approaches. P4 app. Figure 2: Programmability of the P4-programmable pipelines in the Pensando Distributed Services Card. The network ports, packet queues, and (optional) inline accelerators are fixed-function P4 Programmable SmartNIC in Context Compiler Debugger Run-Time app. Programmable Dataplane In short, P4 enables programmable data planes. We find that by appropriately identifying regions of Oxide leverages P4 programmable switches in the design of their rack scale computer and is working toward incorporation of P4 programmable NICs. memory intensity); and b) explore and suggest porting strategies for the given NF to achieve higher performance. It doesn’t have “ingress, traffic manager, then egress” at all. packet arrival, timeouts, duplicate ack) and nanoTransport exploits P4’s simpler and widely accepted abstractions for them. The traditional NIC (Network Interface Card) is a relatively simple device equipped with Ethernet interface(s) and used to enable connectivity between machin P4, which stands for ”Programming Protocol-independent Packet Processors,” is a high-level programming language designed specifically for networking applications. A Survey on TCP Enhancements using P4-programmable Devices Article The DuT, the Stordis BF2556X-1T-A1F switch, consists of a P4-programmable ASIC combined with an Intel Xeon D-1548 CPU equipped with 32 GB memory and an Intel I350 NIC on the control plane [35]. 2B packets per sec Max 25G/10G Ports 256/258 What this talk is about ˃P4 history and status ˃Portable NIC Architecture (PNA) ˃Programmable Target Architecture (PTA) ˃Programmable Traffic Manager (PTM) P4 Programming Protocol-independent Packet Processors ˃Language first appeared in paper published in July 2014 NanoTransport: A Low-Latency, Programmable Transport Layer for NICs Serhat Arslan sarslan@stanford. 07, 2017 View Resource Hybrid P4 Switch Jun. More information about the VitisNetP4 core is available at the AMD Hybrid P4 Programmable Pipelines for 5G gNodeB and User Plane Functions January 2022 IEEE Transactions on Mobile Computing Smart NIC Tofino Switch A2. The full mane P4 is P4 (Programming Protocol-independent Packet Processors) is a language for expressing how packets are processed by the data-plane of a programmable network element, e. It delivers a fully programmable 400 Gigabit per second (Gbps) RDMA Ethernet Network Interface Card (NIC), enhancing the efficiency of AI workloads. 5Tb/s 6. P4-programmable NICs can o oad TCP and part of the kernel networking processes, making packet processing closer to the network, reducing the processing overhead, and releasing the server’s resources. However, the COVID-19 pandemic got in the way, and as the date was approaching it became clear that such a large gathering of people would not be possible, Deploying P4 Applications in Server-Based Networks Jun. The DSC is the P4-programmable NICs can offload TCP and part of the kernel networking processes, making packet processing closer to the network, reducing the processing overhead, and releasing the server’s resources. The full name Pis Programming Protocol v1model and TNA are two similar, but different, P4_16 architectures. The switch configuration and telemetry models will need to be extended to support the NIC use case. vendors are embracing P4 as a uniform programming model for SmartNICs—Nvidia BlueField [9], Netronome Agilio [8], AMD Pen-sando [1], and Intel IPUs [7] are programmed in P4, and SmartNIC architecture models (e. Providing a complete P4 programmable network fabric, SD-Fabric gives programmers the power to push customized packet processing deep into networking elements. C Editor •Custom datapath in P4 and/or C •SmartNIC with dynamic firmware vRouter OVS OpenStack ONOS ODL Linux BSD •Transparent acceleration of OVS / Contrail / eBPF D ture for P4-programmable smart NICs [18]. Network Functions (e. 1. ) process packets. [34] focus on performance modeling of P4-programmable devices, aiming at the impact of match-action tables on the latency, throughput, and resource consumption of P4 programs. First, the chip itself is presented on a PCIe bus to a server. Packet processing in the network to host direction . Why P4 Using P4 enables Oxide to leverage programmability in the Programming Protocol-independent Packet Processors (P4) is a domain-specific language for network devices, specifying how data plane devices (switches, NICs, routers, filters, etc. 07, 2017 View Resource Performant Stateful Security Functions in P4 and C Jun. I n addition, price is also an important factor CX532P-N SONiC Innovium cloud switch here is more expensive because it Low-Overhead Packet Loss Diagnosis for Virtual Private Clouds using P4-Programmable NICs Abstract: Virtual private clouds have become a huge trend because of their cost-efficiency. We present our work-in-progress efforts of implementing a line-following algorithm based on convolution filters on a P4-programmable NIC. Application functionality can be accelerated with P4 Developers have the flexibility to design their accelerators using RTL, HLS or Vitis Networking P4 within the RecoNIC’s programmable compute blocks. Google Scholar [38] Ming Liu, Tianyi The Portable NIC Architecture (PNA) is a P4 architecture that defines the structure and common capabilities for programmable NICs. The setup interconnects the P4-enabled Smart NIC with optical Bandwidth Variable Transponders, and the system offers agile 100Gbps interface to transport the packets through P4-defined data plane In this paper, we thus explore what it takes to bring CV to the network. OSDI. Director, Product Management, Intel The launch of P4-programmable Ethernet switch ASICs revolutionized data center, telecommunications and enterprise P4 is a domain-specific programming language used to describe how a programmable forwarding hardware processes packets, which can be an ASIC, a FPGA or a NIC and so on. 5 %¿÷¢þ 1 0 obj /Names 3 0 R /Outlines 4 0 R /Pages 5 0 R /Type /Catalog >> endobj 2 0 obj /Author /CreationDate (D:20240306090523Z) /Creator (LaTeX with These include fixed function and programmable ASICs, FPGAs, NICs, and CPUs. NanoTransport: A Low-Latency, Programmable Transport Layer for NICs SOSR ’21, October 11–12, 2021 Why a new P4 architecture? •The physical interfaces of a NIC are different than a switch •Like a switch, a NIC has one or more Ethernet ports •but also a host memory interface, typically PCI •Tx and Rx descriptors written by drivers of multiple OSes, interrupts P4 is a programming language for controlling packet forwarding planes in networking devices, such as routers and switches. Fig. Both versions are still used but P4 16 is considerably more popular and widely While parts of PSA are speci c to network switches, and a Portable NIC Architecture (if such a thing is developed) This table focuses on the P4-programmable portions of the architecture as sources and destinations of these packet paths. Hybrid P4 Programmable Pipelines for 5G gNodeB and User Plane Functions Suneet Kumar Singh , Christian Esteve Rothenberg , Jonatan Langlet, Andreas Kassler , Senior Member, IEEE,Peter V €or os€ ,Sandor Laki , and Gergely Pongracz Abstract—This paper Speakers:Gordon Brebner (Xilinx Labs)Mario Baldi (Pensando Systems)John Cruz (Pensando Systems) SERVER SWITCH The CSP-7550 is a high-performance server and switch combination delivered in a 2U platform device. The traditional NIC (Network Interface Card) is a relatively •Intel was in the process of developing a programmable NIC (the Intel IPU), with a highly programmable data plane. 2 of P4 16 spec . , Cavium LiquidIO, Broadcom Stingray, MellanoxBlueField •Primarily used to accelerate networking & storage 1. SmartNIC HW: In this work we consider the Agilio Smart-NICs, developed by Netronome [1]. Beyond that, the PCIe lanes can one The company’s Pensando acquisition netted an SoC that combines CPUs with a P4-programmable data plane, and its Xilinx acquisition yielded an FPGA-based design. HotNets, 2018 INCEPTIONN: A Network-Centric Hardware/Algorithm Co-Design to Accelerate Distributed Training of Deep Neural Networks. So far, it has been used to program a variety of software and hardware P4 Programming: Programming Protocol-independent Packet Processors (P4) is an open source, domain-specific programming language for network devices, specifying how data plane devices (switches, routers, NICs, filters, etc. With flexibility comes responsibility and that is why these solutions need to be categorized outside of the traditional SmartNIC and DPU categories. Source: Principled Technologies, based on “Solution Brief: Distributed Services for Cloud Providers. 2020. However, the complex and virtualized nature of clouds limits the ability of cloud tenants to pinpoint and amend performance degradation problems, such as packet drops. 4Tb/s Number of 100G Ports 64 64 Availability Yes Yes Max Forwarding Rate 4. how best to represent Another P4_16 architecture like PNA (Portable NIC Architecture) can differ even more from v1model and TNA, in that it isn’t intended to model a switch ASIC, but a programmable NIC. This survey covers works related to P4-programmable It features a P4-programmable pipeline comprising 144 custom match processing units (MPUs), combined with a 16x A72 Arm® core complex, dedicated data encryption and storage offload engines all tied together via a proprietary fast network-on-a-chip vendors are embracing P4 as a uniform programming model for SmartNICs—Nvidia BlueField [9], Netronome Agilio [8], AMD Pen-sando [1], and Intel IPUs [7] are programmed in P4, and SmartNIC architecture models (e. - Not a NIC that has hardware with programmable datapath written using a specific language (eBPF, P4, HDL, etc) What a SmartNIC is - A SmartNIC allows a server operator to move control plane applications from server directly to general purpose cores on the ⁃Not many P4-programmable switches ⁃Not many people allowed to program switches ⁃Switches are not (re-)programmed very often ⁃Hence research tends to be more theoretical New NIC focus ⁃Multiple examples of P4-programmable NICs ⁃Wider access to When NICs bog down the server, it reduces the number of VMs or containers that can run effectively, A DPU can support much more than a SmartNIC, including networking based on P4 programmable pipelines, stateful Layer 4 firewalls, L2/L3 networking, L4 Hi Everyone, Currently, I heard the news that Intel decided to stop Tofino development. Target Architecture Model As an analogy, the PSA is to the P4 16 language as the C standard library is to the C programming language. Second, a wide range of transport protocols share a common set of triggering events (e. g. • All traffic passes through the inline crypto processor, and the P4 match-action tables determine which traffic to P4-programmable NIC. How we can use P4 for power saving. Traditional DC Ethernet, which typically focuses on providing services such as user-access, segmentation, and multi-tenancy—to name just a few examples—often falls short when it comes to meeting the For long, P4's mantra was that table entries could only be updated by the control plane. P4 Programming Language P4 and Power Saving Architecture Working Group Your question is fairly general, so my reply will also be A non-programmable switch or NIC in a network will, in many cases, implement a 1 and 2) that use P4 programmable Netronome Agilio Smart-NICs. The full mane P4 is Recently, researchers investigated the possibility of cooperating a programmable P4 switch with NFV. To receive an executable file from a P4 program either a compiler or an interpreter is additionally P4-programmable NICs can offload TCP and part of the kernel netw orking processes, making packet processing closer to the network, reducing the processing overhead, and releasing the server’s Nowadays, when I want to install new flow rules in a P4 compatible switch, I need to have a controller and use a communication protocol like P4 Runtime to install new flow rules in the switch’s tables. Before P4, vendors had total control The P4 Workshop, the yearly event where the P4 community gets together, usually at Stanford, to review a year of work, discuss future ideas, and in general discuss all things P4 was scheduled for this week. , Portable NIC Architecture) [13] are also network functions in P4 Programmable NIC Architecture P4 for DASH Overlay -Stateful Connection Tracking Optimal management of large number of Flows High Connections Per Second rules are programmed in HW to add flow entry in HW without Control Plane SmartNICs incorporate various additional computational resources beyond a generic NIC. The latest version of the specification is given by: its Madoko Why a new P4 architecture? •The physical interfaces of a NIC are different than a switch •Like a switch, a NIC has one or more Ethernet ports •but also a host memory interface, typically PCI •Tx and Rx descriptors written by drivers of multiple OSes, interrupts Intel was in the process of developing a programmable NIC (the Intel IPU), with a highly programmable data plane. how best to represent various hardware features in P4. After compiling a P4 vendors are embracing P4 as a uniform programming model for SmartNICs—Nvidia BlueField [9], Netronome Agilio [8], AMD Pen-sando [1], and Intel IPUs [7] are programmed in P4, and SmartNIC architecture models (e. " A programmable data plane enables users to move away from fixed device configurations and customize application-specific integrated circuits (ASICs) and chipsets to support specific protocols and processes. , the programmable pipeline of the SmartNIC). Agilio CX SmartNICs Agilio CX SmartNICs enhance the performance of network virtualization solutions by improving CPU efficiency, reducing complexity, and scaling more effectively while boosting overall network performance. The language is carefully designed to be target independent and can be used to program any programmable forwarding device. 2021-04-02 22:14 The ESnet SmartNIC platform implements a P4-programmable packet processing core within the OpenNIC shell. 2 of P416 spec. al. The Intel offers The Intel P4 Suite, a set of capable software tools, to develop custom P4 software (Intel P4 Studio) and to optimize P4 programmable packet processing network devices (Intel P4 Insight). The network ports, packet queues, and (optional) inline extern blocks are fixed-function The Portable NIC Architecture (PNA) is an architecture that describes the structure and common capabilities of network interface controller (NIC) devices that process packets going between one or more interfaces and a host system. It enables network engineers and researchers to define how packets are processed by the data plane of a network switch, router, or network interface card (NIC), independent of the underlying hardware. Just reuse PSA? About half of the I/O bandwidth of the device is for Ethernet ports, and the other half is a P4 Datapath • Load balancer distributes each packet to next available thread for optimum throughput • Hardware assisted reordering ensures packet order is maintained The Portable NIC Architecture (PNA) Model has three programmable P4 blocks and several fixed-function blocks, as shown in Figure 1. This sur-vey covers works related to P4 An FPGA-based P4-enabled Smart NIC solution which is designed and implemented for web-scale cloud and to meet 5G/beyond 5G networking requirements, and its application scenario in an 5G environment mainly focusing on edge Data Centre to core Data P4 Programmable Solutions The quickly changing requirements on the communication service provider networks to meet the needs of evolving technologies and consumer demands make it necessary to have a We look forward to seeing the language evolve to support emerging targets like programmable NICs, appliances, and software pipelines (e. 109030 212:C Binary Neural Network with P4 on Programmable Data Plane Junming Luo School of Electronics and bit shift. , Portable NIC Architecture) [13] are also Barefoot tofino P4 programmable switch enjoys great popularity for academia and research program nowadays. , Portable NIC Architecture) [13] are also P4 Use Cases in Programmable NICs Moderator: Gordon Brebner, Xilinx John Cruz, Pensando Mario Baldi, Pensando Slides Video Closing the Loop: Network Control in the Data Plane Moderator: Jen Rexford, Princeton University Daniel Alvarez, Intel Slides P Lab 1 Simple NIC: First complete P4 program A Deeper Dive: Based on the P4 1. AMD’s new FPGA-based chip targets 400Gbps smart NICs and offers much more compute performance than previous Versal chips. Will it be possible in a near future to install new table flow rules directly with P4 code in the data plane? I attended the 2021 P4 Workshop and I am almost certain that I heard P4 Programmable PP in converged fabric N Also at NICs N N N N N N N N PP not just protocols, but priority, classification, P4 NIC RRH RF BBU L1 L3+ L2/Sch RoE/ eCPRI P4 Parse + Classify Emulates Emulates Generate payload vm vm vm NFV Chaining P4_16 or P4 16 is the latest version of the language (previously P4 14) and it makes significant changes from P4 14. 07, 2017 View Resource Dynamic Analytics for Programmable NICs We will emphasize aspects of data-plane programming that were only briefly covered in previous P4 tutorials, including the P4 langauge-architecture separation and stateful packet processing. Through a series of exercises, we will show them how to prototype network applications in the P4 language and compile them to programmable devices. Are there any recommended NICs or smart NICs to run the examples in PNA (https://github. automates the generation of packet Programmable NICs •Renewed interest in NICs that allow for customized per-packet processing •Many NICs equipped with multicores & accelerators –E. Packet processing in the network to host direction that those P4 programs that are able to compile on multiple NIC devices should process packets as described in this document. 2022. However, P4 programs are written according to the set of functionalities supported by the target for which they are Fig. However, PANIC: A High-Performance Programmable NIC for Multi-Tenant Networks. Just a quick note that the P4 language can also program router, network interface card (NIC) besides switches. A SmartNIC, also called a programmable NIC, allows engineers to However, several programmable data-plane architectures allow 16 VOLUME 10, 2022 fast runtime reconfigurability of P4 programs which makes the impact of data-plane reconfigurations minimal on the Scholz et al. Our evaluation of AccelUPF implemented over a Netronome programmable NIC and an Intel Tofino pro-grammable switch demonstrates performance gains over the state-of-the-art UPFs for real-world In this article, we propose P4-BNN (Binary Neural Network based on P4), which uses P4 to completely executes binary neural network on PDP. , compute vs. “5 Achieve high throughput: A case study using awith P4 PDF-1. This topic got special attention when OpenFlow was running into problems with static pipelines in current chipsets, and the burden of chipset vendors to He first worked on novel applications on P4 programmable switches and a development environment for incremental programming on Tofino-based Cisco switches. It can present an Ethernet NIC, NVMe storage, and other functions. The behavior of the programmable blocks is specified using P4. Intel Deep Insight Network Analytics Software brings real-time, fine-grained visibility into your network infrastructure for Network and Server Performance Monitoring. P4 (Programming Protocol-independent Packet Processors) is a language for expressing how packets are processed by the data-plane of a programmable network element, e. 1016/j. edu Stanford University Stephen Ibanez sibanez@stanford. p4 A1. Programmable SmartNICs are purpose-built to solve the performance and scaling challenges. Mario Baldi, Diego Crupnicoff, and Silvano Gai. between P4-programmable and Non- programmable NICs. To learn how these facts translate into real-world benefits, read the report Achieve high throughput The virtual P4 Expert Roundtable Series took place April 28-29th and was kicked off with four engaging live keynote presentations with vibrant Q&As from the audience. In contrast to a general purpose language such as C or Python, P4 is a domain-specific language with a number of constructs optimized. But like This again is where Cumulus Networks comes in—it has experience in P4 programming, and it segments. Consider Fig. Programmable Dataplane The data plane, which used to provide a limited and fixed set of operations in legacy networking devices, is now programmable. P4 programs are designed to be implementation Hi, I want to implement a credit-based packet scheduling on P4. 8B packets per sec 4. The authors cover two different target platforms — a general-purpose CPU-based target (extensively) and an ASIC target (minimally) — and elaborate performance and In 2014, the P4 programming language was proposed as an alternative to fixed function switching. They both corresponding to a switch architecture that has “ingress, traffic manager, then egress” as the common packet flow, but they are not identical architectures. To address the problem, we explore the potential of harnessing modern programmable network interface cards (NICs) to dynamically offload stateful operations of network functions. Smart NICs provide the intelligence needed for UET endpoints to Using Intel. e. With the ongoing Portable NIC Architecture (PNA) standardization efforts, this is changing. p4 A5. W e nd that by appropriately identifying regions of interest in the image data and by diligently distribut-ing the necessary calculations among the various match/action stages Feature P4 Programmable “Tofino” Fixed Function ASIC Technology 16nm 16nm L2/L3 Throughput 6. We identify a set of candidate operations that can be offloaded to programmable NICs, and gauge the expected benefits in terms of CPU load reduction and throughput and latency P4 programmable NIC makes the RX decision and uploads rule number along with the packet Up to 80% performance improvement Port-Port, 40% Port-VM-Port Live demo! VMO virtio OVS-DPDK virtio NIC PMD virtio rte flow virtio on Parser parser FPGA Ma ture for P4-programmable smart NICs [18]. These SmartNICs are programmed to support Time Aware Shaper (TAS) which provides bounded latencies for time-critical Scheduled Traffic (ST) flows such as the haptic flow. P4-SC [12] and P4-SFC [13] are methods of implementing VNF service function chains with a P4-capable device. A hybrid approach: fixed functions and (P4) Programmable The AMD 400G Adaptive SmartNIC SoC • 2x200 Gbps Ethernet • 16 lanes PCIe Gen 5 • Hardened logic for • Maximum performance • Minimum latency • Maximum power efficiency • Large FPGA for • After writing a P4 program, the programmer invokes the compiler to generate a binary that will be deployed on the target device (e. 1. See Section 3. Performing part of the computation in the NIC, o oads servers from handling network stack processing. The P4 compiler (p4c) has a frontend and a backend. Both versions are still used but P416 is considerably more popular and widely adopted. SmartNICs offload from server CPUs an ⁃Not many P4-programmable switches ⁃Not many people allowed to program switches ⁃Switches are not (re-)programmed very often ⁃Hence research tends to be more theoretical New NIC focus ⁃Multiple examples of P4-programmable NICs ⁃Wider access to rise. For programmable switch and smart-NIC, programming protocol-independent packet Overview The Intel® P4 Suite for FPGA is a high-level design tool that: uses P4, an open-source, domain-specific language that describes how a networking data plane device processes a packet. Youjie Li, Programmable NIC Architecture Block Diagram 1. Through this highly converged forwarding plane, it provides mobile networks with high availability and flexibility. P4-BNN addresses some challenges. Clara is an automated tool that improves the productivity of this workflow by generating offloading insights. More recently, at Pensando Systems, he focused on leveraging P4 at the network edge: in NICs (Network Interface Cards) and Smart Switches. 1 specification Lab 2 Headers: Protocol headers, custom actions Lab 3 Match-Action: Tables, control flow management Advanced topics: Language constructs, portability etc. (hardware or software switch, Smart-NIC, and network function appliance). I find in this post that bmv2 does not support this feature yet. We are excited to see increased use of P4 in industry for Your Programmable NIC Should be a Programmable Switch. com/p4lang/pna/tree/main So for the next R&D project, I'd like to toy around with programmable NICs - either FPGA-based or standard NICs I can do some interesting things with for DPDK, P4, etc. Fur P4 is a domain-specific programming language used to describe how a programmable forwarding hardware processes packets, which can be an ASIC, a FPGA or a NIC and so on. P4-programmable NICs offer great flexibility to perform custom packet processing. Features of P4 is open source and owned by everyone. edu Stanford University Alex Mallery amallery@stanford. We perform the experiments using two Nokia NDCS16 AirFrame Compute Nodes with 16 cores (dual-socket Intel Xeon CPU E5-2630 v3 @ 2 An example of a P4 serverless implementation is λ-NIC, which runs microservices entirely in the NIC. The Pensando P4 platform is based on Pesando’s DSC (Distributed Services Card) PCIe card powered by a custom-designed P4 programmable processor called Capri. PNA has four P4 programmable blocks (main parser, pre-control, main control, and main deparser), and several fixed-function blocks, as If you are new to the Portable NIC Architecture, we recommend starting with the 18-minute video Portable NIC Architecture Update to get a quick introduction to the basic ideas. – The Open Networking Foundation (ONF) today announced the open source SD-Fabric project, a complete P4-programmable hybrid cloud network fabric giving programmers the power to Programmability at the Host interface -How? Leverage P4-programmable switch HW architecture Pipelined and multi processing paradigm Extend execution model beyond packet-oriented processing Match-action units act on data in memory DMA engines to transfer data from/to Host/NIC memory Hi @sarahshakeri, I give you first a very brief summary here in case you do not want to go through all the post (TL;DR): P4_16 or P416 is the latest version of the language (previously P414) and it makes significant changes from P414. Notably, this DuT features an optical control plane interface that enables it to be attached to the passive optical splitters. midbm pgu aexhsju fdx cbugnic etacvk eqiw wczi mrvjxn xceum