The p4c-dpdk backend translates the P4-16 programs to DPDK API to configure the DPDK software switch (SWX) pipeline. DPDK introduced the SWX pipeline in the DPDK 20.11 LTS release. For more information, please refer to the release note at https://doc.dpdk.org/guides/rel_notes/release_20_11.html.
The p4c-dpdk compiler accepts P4-16 programs written for the Portable Switch Architecture (PSA) (see the P4.org specifications page for the PSA specification document).
The backend for dpdk reuses code from the p4c-bm2 "common" library for handling the PSA architecture. Internally, it translates the PSA program to a representation that conforms to the DPDK SWX pipeline and generates the 'spec' file to configure the DPDK pipeline.
A sample P4 program can be found in the examples directory. To
generate the 'spec' file:
p4c-dpdk vxlan.p4 -o vxlan.specTo load the 'spec' file in dpdk:
TBD
TBD
Han Wang [email protected]
Cristian Dumitrescu [email protected]