netdev - Re: [iproute2 PATCH] iproute2: linklayer interface between kernel and tc/userspace

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Message-ID: <20130903083315.1639bb0f@nehalam.linuxnetplumber.net>
Date:	Tue, 3 Sep 2013 08:33:15 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Jesper Dangaard Brouer <brouer@...hat.com>
Cc:	Stephen Hemminger <shemminger@...tta.com>, netdev@...r.kernel.org
Subject: Re: [iproute2 PATCH] iproute2: linklayer interface between kernel
 and tc/userspace

On Fri, 30 Aug 2013 14:02:10 +0200
Jesper Dangaard Brouer <brouer@...hat.com> wrote:

> This iproute2 tc patch is connected to the kernel
>  - commit 8a8e3d84b17 (net_sched: restore "linklayer atm" handling)
> 
> The rate table calculated by tc, have gotten replaced in the kernel
> and is no-longer used for lookups.
> 
> This happened in kernel release v3.8 caused by kernel
>  - commit 56b765b79 ("htb: improved accuracy at high rates").
> This change unfortunately caused breakage of tc overhead and
> linklayer parameters.
> 
>  Kernel overhead handling got fixed in kernel v3.10 by
>  - commit 01cb71d2d47 (net_sched: restore "overhead xxx" handling)
> 
>  Kernel linklayer handling got fixed in kernel v3.11 by
>  - commit 8a8e3d84b17 (net_sched: restore "linklayer atm" handling)
> 
> The linklayer fix introduced a struct change, that allow the linklayer
> attribute to be transferred between tc and kernel. This patch make use
> of this linklayer attribute.
> 
> The linklayer setting is transfer to the kernel.  And linklayer
> setting received from the kernel is printed with a prefixed
> "linklayer" when listing current configuration.  The default
> TC_LINKLAYER_ETHERNET is only printed in detailed output mode.
> 
> Signed-off-by: Jesper Dangaard Brouer <brouer@...hat.com>

Ok, Applied for 3.11
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