netdev - Re: [PATCH net-next,RFC 00/13] New fast forwarding path

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Message-ID: <161558ff-2002-ae17-d45a-58464b9f8619@iogearbox.net>
Date:   Wed, 20 Jun 2018 00:22:05 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Steffen Klassert <steffen.klassert@...unet.com>
Cc:     David Miller <davem@...emloft.net>, pablo@...filter.org,
        netfilter-devel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH net-next,RFC 00/13] New fast forwarding path

On 06/17/2018 11:23 AM, Steffen Klassert wrote:
[...]
>> Would be curious about
>> the numbers. You'd get implicit batching for the forwarding via devmap
>> as well if you're required to flush it out via different device with
>> XDP_REDIRECT; otherwise XDP_TX of course. Given we have recently
>> integrated helpers for XDP to do a FIB and neighbor lookup from the
>> kernel tables, where it's thus shared and integrated with the rest of
>> the stack and tooling, it would be awesome to get to the same point
>> with xfrm as well. Eyal recently did a start on that for xfrm for tc
>> progs; would be nice to have integration on XDP as well, potentially
>> it might also result in a bigger plus on the forwarding numbers.
> 
> It might make sense to intrgrate XDP with xfrm to
> be able to compare numbers etc. But I need a working
> XDP setup and some understanding about it first, what
> could take some time.

Okay, no prob. If you have any questions feel free to shoot an email.

Thanks,
Daniel