netdev - Re: [PATCH v2] PPC: bpf_jit_comp: add SKF_AD

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Message-ID: <CAOJe8K31iB9+7c1BnS=6DdriU08WUisM7sYgj8nOBo4Fg=XUBg@mail.gmail.com>
Date:	Sat, 1 Nov 2014 20:19:09 +0400
From:	Denis Kirjanov <kda@...ux-powerpc.org>
To:	Denis Kirjanov <kirjanov@...il.com>
Cc:	Alexei Starovoitov <alexei.starovoitov@...il.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	linuxppc-dev@...abs.org, Michael Ellerman <mpe@...erman.id.au>,
	Matt Evans <matt@...abs.org>
Subject: Re: [PATCH v2] PPC: bpf_jit_comp: add SKF_AD_PKTTYPE instruction

ping

On 10/31/14, Denis Kirjanov <kirjanov@...il.com> wrote:
> On 10/30/14, Alexei Starovoitov <alexei.starovoitov@...il.com> wrote:
>> On Wed, Oct 29, 2014 at 11:12 PM, Denis Kirjanov <kda@...ux-powerpc.org>
>> wrote:
>>> Add BPF extension SKF_AD_PKTTYPE to ppc JIT to load
>>> skb->pkt_type field.
>>>
>>> Before:
>>> [   88.262622] test_bpf: #11 LD_IND_NET 86 97 99 PASS
>>> [   88.265740] test_bpf: #12 LD_PKTTYPE 109 107 PASS
>>>
>>> After:
>>> [   80.605964] test_bpf: #11 LD_IND_NET 44 40 39 PASS
>>> [   80.607370] test_bpf: #12 LD_PKTTYPE 9 9 PASS
>>
>> if you'd only quoted #12, it would all make sense ;)
>> but #11 test is not using PKTTYPE. So your patch shouldn't
>> make a difference. Are these numbers with JIT on and off?
>
> Right.
>
>> --
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>
>
> --
> Regards,
> Denis
>
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