netdev - Re: [PATCH 2/2 net-next] net: move qdisc ingress filtering code where it belongs

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Date:	Sun, 10 May 2015 19:59:34 +0200
From:	Pablo Neira Ayuso <pablo@...filter.org>
To:	Alexei Starovoitov <ast@...mgrid.com>
Cc:	netdev@...r.kernel.org, davem@...emloft.net, jhs@...atatu.com,
	daniel@...earbox.net
Subject: Re: [PATCH 2/2 net-next] net: move qdisc ingress filtering code
 where it belongs

On Sun, May 10, 2015 at 10:45:42AM -0700, Alexei Starovoitov wrote:
> On 5/10/15 9:59 AM, Pablo Neira Ayuso wrote:
> >The qdisc ingress filtering code is embedded into the core most likely because
> >at that time we had no RCU in place to define a hook. This is semantically
> >wrong as this violates the most basic rules of encapsulation.
> 
> Yet another attempt to sneak in 'qdisc_ingress_hook' to kill TC ?
> Just add another hook for netfilter. Seriously. Enough of these
> politics.

Absolutely not. I will not kill TC because people like jamal likes it,
and that's more than an argument to me to keep it there.

I have to ask you to stop harassing me all over with non-technical
comments: "evil", "funny", ...

I'm getting quite enough of this, you stop that.

> Again, Daniel's patch accelerates super-critical ingress path even more.
> Care to carefully read it first?

No, Daniel is *not* benchmarking the netif_received_core() with no
filtering at all.
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