netdev - Re: [PATCH v4 net-next 2/2] net/sched: act_frag: add implict packet fragment support.

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Message-ID: <20201106092419.GB3555@localhost.localdomain>
Date:   Fri, 6 Nov 2020 06:24:19 -0300
From:   Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
To:     wenxu@...oud.cn
Cc:     kuba@...nel.org, dcaratti@...hat.com, netdev@...r.kernel.org
Subject: Re: [PATCH v4 net-next 2/2] net/sched: act_frag: add implict packet
 fragment support.

On Fri, Nov 06, 2020 at 05:14:16PM +0800, wenxu@...oud.cn wrote:
> From: wenxu <wenxu@...oud.cn>
> 
> Currently kernel tc subsystem can do conntrack in act_ct. But when several
> fragment packets go through the act_ct, function tcf_ct_handle_fragments
> will defrag the packets to a big one. But the last action will redirect
> mirred to a device which maybe lead the reassembly big packet over the mtu
> of target device.
> 
> This patch add support for a xmit hook to mirred, that gets executed before
> xmiting the packet. Then, when act_ct gets loaded, it configs that hook.
> The frag xmit hook maybe reused by other modules.
> 
> Signed-off-by: wenxu <wenxu@...oud.cn>

Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@...il.com>

Thanks wenxu.