netdev - Re: [Q/RFC] BPF use in broader scope

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Date:	Thu, 29 Mar 2012 10:31:49 +0200
From:	Jiri Pirko <jpirko@...hat.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	bhutchings@...arflare.com, shemminger@...tta.com, matt@...abs.org
Subject: Re: [Q/RFC] BPF use in broader scope

Thu, Mar 29, 2012 at 10:02:25AM CEST, eric.dumazet@...il.com wrote:
>On Thu, 2012-03-29 at 09:54 +0200, Jiri Pirko wrote:
>
>> Yep, I'm aware. I must admit that the JIT code scares me a litte :(
>> 
>
>If you add a new XOR instruction in interpreter only, JIT compiler will
>automatically aborts, so no risk.
>
>Each arch maintainer will add the support for the new instructions as
>separate patches.
>
>So you can focus on net/core/filter.c file only.
>

Ok - I can do this for 2). But for 3) JITs need to be modified. So I
would like to kindly ask you and Matt if you can do this modification so
bpf_func takes pointer to mem (scratch store) as second parameter. I'm
sure it's very easy for you to do.

Ccing Matt.

Thanks.

>
>
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