[dpdk-dev] [EXT] Re: [PATCH v7] eal: add manual probing option

[Jerin Jacob Kollanukkaran]

> >
> > Should we have a command line option to configure the forwarding rules
> > in the application (2)? I think yes.
> > Should we implement an application logic to automatically create the
> > best forwarding rules (1)? It would be nice, but anyway, I think we
> > need manual config (2) as a fallback.
> >
> >
> > > Thoughts? If you think, there is a rework needed in eal then could
> > > you enumerate the items for the rework.
> >
> > Sorry I don't have time to describe dive into EAL probing and
> > enumerate the items to rework.
> > The most important issues I remind are:
> >         - white/blacklist policy is a mess and should be done in a higher layer
> >         - devargs syntax should allow generic matching (thanks to
> > class awareness and generic syntax)
> >
> > Starting from these 2 items, we could imagine a generic path to
> > disable automatic probing, but I think the l2fwd logic should not rely
> > on probing order anyway.
> 
> + Bruce as l2fwd maintainer.
> 
> Since in any case, l2fwd needs to be updated, We will focus on l2fwd change
> for v20.05 and leaving the fate of this patch to EAL maintainers.
> Let us know, Are we are OK with below change in l2fwd as
> - Introduce an array-based port lookup table instead of hardcoding to xor based
> lookup.
> - if no argument specified fill dest port as xor of source
> - If argument is specified override the lookup table with a user-specified
> destination port.

I think, this thread can be closed here.

L2fwd change sent as different patch.

Please review if it is for interest. 

http://patches.dpdk.org/patch/67722/


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