From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <alan.christopher.jenkins@gmail.com>
Received: from mail-wg0-x236.google.com (mail-wg0-x236.google.com
	[IPv6:2a00:1450:400c:c00::236])
	(using TLSv1 with cipher RC4-SHA (128/128 bits))
	(Client CN "smtp.gmail.com",
	Issuer "Google Internet Authority G2" (verified OK))
	by huchra.bufferbloat.net (Postfix) with ESMTPS id A99AF21F382
	for <cake@lists.bufferbloat.net>; Thu, 14 May 2015 03:33:06 -0700 (PDT)
Received: by wgbhc8 with SMTP id hc8so36975109wgb.3
	for <cake@lists.bufferbloat.net>; Thu, 14 May 2015 03:33:04 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
	h=message-id:date:from:user-agent:mime-version:to:cc:subject
	:references:in-reply-to:content-type:content-transfer-encoding;
	bh=70gQPRDwuNNBOu4mf8H0+w55zg7Gicx7+Y/Bic8Y2Qk=;
	b=o8kU9nWp9aHduH+GTm/2LQwW2OJdmAVr+1YBnx3jf8sib1clXdfFo02yKfN6ePAUr+
	FtrYnkVRYKuE9X3nZHAcRzmkVuHLtyeW3tORSRjHtctb+UdCeR/p/qX6u7f0eNotdHT7
	thmj1XZWe/Gu9B/do2Nd2i25SOEqWI8c+5Bpns+Fns48ZGOdjXS7+KZ7qVizNP6xStA+
	Khp1ECua589d+KY8JOk4rbFROBi2LbyrEsv0U+BxGKVNWTxje33pwscF0VNmPTroSWd5
	G9hB38H8RWCmxBe48zAvVpt/OemwZTdAJAUdRQgblXF0JHa0huNLzOjPIn9+K/lxuq6o
	5+LQ==
X-Received: by 10.180.76.231 with SMTP id n7mr22330365wiw.44.1431599584149;
	Thu, 14 May 2015 03:33:04 -0700 (PDT)
Received: from volcano.localdomain (host-89-243-103-224.as13285.net.
	[89.243.103.224]) by mx.google.com with ESMTPSA id
	yr1sm37472211wjc.37.2015.05.14.03.33.03
	(version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
	Thu, 14 May 2015 03:33:03 -0700 (PDT)
Message-ID: <555479DE.90806@gmail.com>
Date: Thu, 14 May 2015 11:33:02 +0100
From: Alan Jenkins <alan.christopher.jenkins@gmail.com>
User-Agent: Mozilla/5.0 (X11; Linux x86_64;
	rv:31.0) Gecko/20100101 Thunderbird/31.6.0
MIME-Version: 1.0
To: Jonathan Morton <chromatix99@gmail.com>
References: <554F64E1.6000609@gmail.com> <554F9594.60808@gmail.com>
	<E30C4EBD-0094-4BDA-80D1-70EE9E954631@gmx.de>
	<50DB1E31-61AE-4298-B80F-8C6F7487C99B@gmail.com>
	<AF973A4B-E500-43FD-9E2D-36BD27C70AE3@gmail.com>
	<002A5BFC-5511-4995-8785-370251F24083@gmx.de>
	<CF5D7897-07DD-4041-884B-EB3B8440A4BC@gmail.com>
In-Reply-To: <CF5D7897-07DD-4041-884B-EB3B8440A4BC@gmail.com>
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 8bit
Cc: cake@lists.bufferbloat.net
Subject: Re: [Cake] openwrt build with latest cake and other qdiscs
X-BeenThere: cake@lists.bufferbloat.net
X-Mailman-Version: 2.1.13
Precedence: list
List-Id: Cake - FQ_codel the next generation <cake.lists.bufferbloat.net>
List-Unsubscribe: <https://lists.bufferbloat.net/options/cake>,
	<mailto:cake-request@lists.bufferbloat.net?subject=unsubscribe>
List-Archive: <https://lists.bufferbloat.net/pipermail/cake>
List-Post: <mailto:cake@lists.bufferbloat.net>
List-Help: <mailto:cake-request@lists.bufferbloat.net?subject=help>
List-Subscribe: <https://lists.bufferbloat.net/listinfo/cake>,
	<mailto:cake-request@lists.bufferbloat.net?subject=subscribe>
X-List-Received-Date: Thu, 14 May 2015 10:33:35 -0000

On 14/05/15 11:24, Jonathan Morton wrote:
> I can’t figure out the connection between HTB and that code. Also,
> that appears to be GSO, not GRO. I’m not precisely sure what the
> difference is, but I’d hazard a guess that GSO is outbound, GRO is
> inbound.

I've just been reading thanks to Seb.  GSO is outbound.  GRO is inbound.

They appear to interact in routing: if you GRO packets, you end up with 
 >MTU skbs, which then *have* to be de-aggregated somehow before you can 
send them.

(And the popular reference on GRO is https://lwn.net/Articles/358910/).