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Message-ID: <20190509112902.2691c690@cakuba.hsd1.ca.comcast.net>
Date:   Thu, 9 May 2019 11:29:02 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Pablo Neira Ayuso <pablo@...filter.org>
Cc:     netfilter-devel@...r.kernel.org, davem@...emloft.net,
        netdev@...r.kernel.org, thomas.lendacky@....com,
        f.fainelli@...il.com, ariel.elior@...ium.com,
        michael.chan@...adcom.com, santosh@...lsio.com,
        madalin.bucur@....com, yisen.zhuang@...wei.com,
        salil.mehta@...wei.com, jeffrey.t.kirsher@...el.com,
        tariqt@...lanox.com, saeedm@...lanox.com, jiri@...lanox.com,
        idosch@...lanox.com, peppe.cavallaro@...com,
        grygorii.strashko@...com, andrew@...n.ch,
        vivien.didelot@...oirfairelinux.com, alexandre.torgue@...com,
        joabreu@...opsys.com, linux-net-drivers@...arflare.com,
        ganeshgr@...lsio.com, ogerlitz@...lanox.com,
        Manish.Chopra@...ium.com, marcelo.leitner@...il.com,
        mkubecek@...e.cz, venkatkumar.duvvuru@...adcom.com,
        julia.lawall@...6.fr, john.fastabend@...il.com
Subject: Re: [PATCH net-next,RFC 0/2] netfilter: add hardware offload
 infrastructure

On Thu,  9 May 2019 18:39:49 +0200, Pablo Neira Ayuso wrote:
> Hi,
> 
> This patchset adds initial hardware offload support for nftables through
> the existing netdev_ops->ndo_setup_tc() interface, the TC_SETUP_CLSFLOWER
> classifier and the flow rule API.
> 
> Patch 1 move the flow block callback infrastructure to
> 	net/core/flow_offload.c. More structure and enumeration definitions
> 	currently in include/net/pkt_cls.h can be also there to reuse this from
> 	the netfilter codebase.
> 
> Patch 2 adds hardware offload support for nftables.
> 
> This patchset depends on a previous patchset:
> 
> 	[PATCH net-next,RFC 0/9] net: sched: prepare to reuse per-block callbacks from netfilter
> 
> More information at: https://marc.info/?l=netfilter-devel&m=155623884016026&w=2
> 
> Comments welcome, thanks.

Jiri requested the drivers remember the block info, so we can't have
multiple block binds right now, unless we fix drivers.  See:

commit d6787147e15d ("net/sched: remove block pointer from common
offload structure")

for example.

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