netdev - Re: [PATCHv7 net-next 00/15] BPF hardware offload (cls

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Date:   Wed, 21 Sep 2016 19:56:00 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     jakub.kicinski@...ronome.com
Cc:     netdev@...r.kernel.org, ast@...nel.org, daniel@...earbox.net
Subject: Re: [PATCHv7 net-next 00/15] BPF hardware offload (cls_bpf for now)

From: Jakub Kicinski <jakub.kicinski@...ronome.com>
Date: Wed, 21 Sep 2016 11:43:52 +0100

> In the last year a lot of progress have been made on offloading
> simpler TC classifiers.  There is also growing interest in using
> BPF for generic high-speed packet processing in the kernel.
> It seems beneficial to tie those two trends together and think
> about hardware offloads of BPF programs.  This patch set presents
> such offload to Netronome smart NICs.  cls_bpf is extended with
> hardware offload capabilities and NFP driver gets a JIT translator
> which in presence of capable firmware can be used to offload
> the BPF program onto the card.
> 
> BPF JIT implementation is not 100% complete (e.g. missing instructions)
> but it is functional.  Encouragingly it should be possible to
> offload most (if not all) advanced BPF features onto the NIC - 
> including packet modification, maps, tunnel encap/decap etc.
 ...

Series applied, thanks.