netdev - Re: PF_RING: Include in main line kernel?

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Message-Id: <C19A7559-6C48-4F2D-8052-529DC63F046E@ntop.org>
Date:	Wed, 14 Oct 2009 23:34:53 +0200
From:	Luca Deri <deri@...p.org>
To:	Ben Greear <greearb@...delatech.com>
Cc:	Evgeniy Polyakov <zbr@...emap.net>,
	Stephen Hemminger <shemminger@...tta.com>,
	Brad Doctor <brad.doctor@...il.com>, netdev@...r.kernel.org
Subject: Re: PF_RING: Include in main line kernel?

Ben
the patch implements what I looked for.

Thanks Luca

On Oct 14, 2009, at 11:27 PM, Ben Greear wrote:

> On 10/14/2009 01:36 PM, Evgeniy Polyakov wrote:
>> On Wed, Oct 14, 2009 at 10:17:30PM +0200, Luca Deri (deri@...p.org)  
>> wrote:
>>> The reason why I decided to patch dev.c is because I wanted  
>>> PF_RING to
>>> decide whether the packet journey shall continue or not. In other
>>> words with my solution PF_RING applications can decide whether the
>>> received packets will also be delivered to upper layers (and to  
>>> other
>>> kernel network components). This configurable 'early packet drop'
>>> allows the overall performance to be significantly increased as
>>> received packets are not supposed to be delivered to upper layers;
>>> this is a typical situations for many monitoring devices.
>>
>> This is a feature many projects implement themself indeed. What about
>> creating special return value from the packet handler which will
>> indicate that packet was already consumed and no further work  
>> should be
>> done on it?
>
> Maybe something similar to the attached patch?
>
> Thanks,
> Ben
>
> -- 
> Ben Greear <greearb@...delatech.com>
> Candela Technologies Inc  http://www.candelatech.com
>
> <patch0.patch>

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