netdev - Re: [PATCH net-next 3/3] cls_bpf: further limit exec opcodes subset

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Message-ID: <56031184.3030308@plumgrid.com>
Date:	Wed, 23 Sep 2015 13:54:28 -0700
From:	Alexei Starovoitov <ast@...mgrid.com>
To:	Daniel Borkmann <daniel@...earbox.net>, davem@...emloft.net
Cc:	jhs@...atatu.com, netdev@...r.kernel.org
Subject: Re: [PATCH net-next 3/3] cls_bpf: further limit exec opcodes subset

On 9/23/15 12:56 PM, Daniel Borkmann wrote:
> Jamal suggested to further limit the currently allowed subset of opcodes
> that may be used by a direct action return code as the intention is not
> to replace the full action engine, but rather to have a minimal set that
> can be used in the fast-path on things like ingress for some features
> that cls_bpf supports.
>
> Classifiers can, of course, still be chained together that have direct
> action mode with those that have a full exec pass. For more complex
> scenarios that go beyond this minimal set here, the full tcf_exts_exec()
> path must be used.
>
> Suggested-by: Jamal Hadi Salim<jhs@...atatu.com>
> Signed-off-by: Daniel Borkmann<daniel@...earbox.net>

Acked-by: Alexei Starovoitov <ast@...mgrid.com>

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