linux-kernel - Re: network stack rate shaping queues

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Message-ID: <CAM_iQpWgH9NpEMDaSiRp2ZXay-m=KwD6t+gNo6v4zPo2c+8_0w@mail.gmail.com>
Date:   Fri, 7 Feb 2020 12:17:04 -0800
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     Kent Dorfman <kent.dorfman766@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: network stack rate shaping queues

(Please always CC netdev for networking questions.)

On Thu, Feb 6, 2020 at 9:45 PM Kent Dorfman <kent.dorfman766@...il.com> wrote:
>
> A general question:
>
> Do the network rate shaping queues apply to all network traffic in the
> system, or just to the AF_INET address family?

If you mean Qdisc's like HTB, they apply universally to all traffic going
through it, unless of course you do your own packet filtering on top.

>
> What if we have other classes of network drivers (non ethernet) that
> also use a BSD socket interface, but a different address family?  Are
> those messages also subject to the rate shaping, or are they generally
> FIFO to the driver queue?
>

They are not specific to Ethernet either.

Thanks.