On Tue, 26 Sep 2023 18:16:56 +0000
yuying.zhang@intel.com wrote:

From: Wenjing Qiao <redacted>

Add devargs "flow_parser" for rte flow json parser which depends
on jansson library.

Example:
    -a ca:00.0,flow_parser="refpkg.json"

Add json parser for rte flow pattern rules which can build rules
that maps from a set of rte flow items to hardware representations.

The cpfl PMD supports utilizing a JSON configuration file to translate
rte flow tokens into low level hardware resources. The JSON configuration
file is provided by the hardware vendor and is intended to work exclusively
with a specific P4 pipeline configuration, which must be compiled and
programmed into the hardware.

The format of the JSON file strictly follows the internal specifications
of the hardware vendor and is not meant to be modified directly by
users.

Signed-off-by: Wenjing Qiao <redacted>

It is good to see the code is now using the same JSON parser as elsewhere in DPDK.

How does this interact with the P4 work done by Cristian, is this part of that?
Is this treated as opaque firmware?
Why is it driver specific? DPDK P4 support needs to be vendor neutral to acceptable.