OVS with P4 Code Walk Overview

OVS with P4 Code Walk by Namrata Limaye integrates P4, P4runtime, Openconfig, and more to enhance control plane elements. The design and future implementations focus on P4-DPDK, Tofino backend support, and enhanced kernel control plane functionalities. The project also offers detailed container setup guides and contacts for further collaboration.

• OVS
• P4
• Control Plane
• Networking
• Container

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1. OVS (With P4) Code Walk Namrata Limaye

2. Overview https://github.com/ipdk https://github.com/ipdk- -io/ovs io/ovs- -b ovs b ovs- -with with- -p4 p4 New Exists Control Plane elements: P4proto (Dir: p4proto) P4runtime and Openconfig IF (Dir: p4proto/p4rt) - https://github.com/stratum/stratum https://github.com/p4lang/p4runtime Target API IF (Dir: p4proto/bfIntf) - https://github.com/p4lang/p4-dpdk-target Kernel Control Plane (Dir: switchlink, switchsai, switchapi) https://github.com/opencomputeproject/SAI ovs-p4ctl, gnmi-cli (Dir: utilities) https://github.com/stratum/stratum OF Controller P4 Controller ovs-p4ctl ovs-ofctl ovs-vswitchd OVS Configs ofproto p4proto netdev ofproto-dpif Target-API Kernel configs dpif Netdev provider dpif-provider P4-ubpf P4-dpdk userspace kernel openvswitch.ko P4-ebpf/TC-P4 external devices Data Planes supported: P4 DPDK (https://github.com/DPDK/dpdk) P4 NICs NIC device

3. P4-OVS Design

4. IPDK Container https://github.com/ipdk https://github.com/ipdk- -io/ipdk/tree/main/build/IPDK_Container io/ipdk/tree/main/build/IPDK_Container IPDK Container setup howto - https://github.com/ipdk- io/ipdk/blob/main/build/IPDK_Container/README Dockerfile Application/Device Consumer VM Application/Device Consumer VM - https://github.com/ipdk- io/ipdk/blob/main/build/IPDK_Container/Dockerfile ovs-with-p4 container build scripts Virtio Block/Eth Virtio Block/Eth - https://github.com/ipdk- io/ipdk/tree/main/build/IPDK_Container/scripts P4 file vHost vHost IPDK Container Reference App (P4-OVS/Storage) - https://github.com/ipdk- io/ipdk/blob/main/build/IPDK_Container/examples/si mple_l3/simple_l3.p4 IPDK Stack (P4-DPDK-target)

5. Future Implemented: P4Runtime and Openconfig Ovs-p4ctl and gnmi-cli Kernel Control Plane repos integrated IPDK Container P4-DPDK and Tofino backend support Future: Kernel Control Plane and linux_networking.p4 (vxlan, L3 Fwd, ECMP) Ovs-vsctl add-port, bridge, p4 Exception control packet processing P4Runtime and Openconfig v2, ovs-p4ctl dump-flows Multiple pipelines, stacked pipelines Counters, Meters, Mirrors Other SW/kernel backends

6. Contacts Namrata.limaye@intel.com Dan.daly@intel.com venkata.suresh.kumar.p@intel.com Debashis.Chatterjee@intel.com