[RFC] ethdev: introduce ethdev dump API

[Thomas Monjalon]

Please use --cc-cmd devtools/get-maintainer.sh so all maintainers are Cc'ed.

11/01/2022 12:54, Min Hu (Connor):
> --- a/doc/guides/rel_notes/release_22_03.rst
> +++ b/doc/guides/rel_notes/release_22_03.rst
> @@ -55,6 +55,12 @@ New Features
>       Also, make sure to start the actual text at the margin.
>       =======================================================
>  
> +   * **Added the ethdev dump API, for query private info of ethdev.**
> +
> +     Added the ethdev dump API which provides functions for query private info
> +     from device. There exists many private properties in different PMD
> +     drivers. The information of these properties is important for debug. As
> +     the information is private, the new API is introduced.
>  

A blank line is missing.
Also please check the comment above asking to start the actual text at the margin.

[...]
> +typedef int (*eth_dev_dump_t)(struct rte_eth_dev *dev, FILE *file);

There is a dump function for rte_flow: rte_flow_dev_dump().
This one should have a clear scope: private device infos?