[v2 3/3] examples/l3fwd: enhance valid ports checking

[Stephen Hemminger]

On Tue,  6 Aug 2024 09:11:20 +0530
Gagandeep Singh <g.singh at nxp.com> wrote:

> The current port ID validation logic in the routes add code has
> two issues:
> 
>  - It can pass if port ID in route is 31+.
>  - It silently skips rules with disabled or invalid
>    port IDs
> 
> This patch is:
>  - Improving the enabled port IDs check logic.
>  - Introducing a user option, "exit_on_failure", to control
>    the behavior when attempting to add rules for disabled or
>    invalid port IDs (either exit or skip)
>  - Creating a port ID validation function for use across
>    various setup functions
> 
> Signed-off-by: Gagandeep Singh <g.singh at nxp.com>

Patch looks fine, but other changes in the intervening time have
caused conflicts with this patch. Needs to be rebased.