OVS with P4 Code Walk Overview

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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.

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OVS (With P4) Code Walk Namrata Limaye

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

P4-OVS Design

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)

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