From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0B748C3A59E for ; Sat, 24 Aug 2019 17:45:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C29AF2146E for ; Sat, 24 Aug 2019 17:45:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=nic.cz header.i=@nic.cz header.b="Tc/1cuID" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727146AbfHXRps (ORCPT ); Sat, 24 Aug 2019 13:45:48 -0400 Received: from mail.nic.cz ([217.31.204.67]:41530 "EHLO mail.nic.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726808AbfHXRps (ORCPT ); Sat, 24 Aug 2019 13:45:48 -0400 Received: from localhost (unknown [172.20.6.135]) by mail.nic.cz (Postfix) with ESMTPSA id C8784140BBA; Sat, 24 Aug 2019 19:45:46 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=nic.cz; s=default; t=1566668747; bh=OWGRz1J1bHxrq8F2/RyMLv64CyNOHFet199bgwMGDiA=; h=Date:From:To; b=Tc/1cuIDejfChtlHH8mWsJoAM3aB8ur9Ne0+LutXvwzG42/oJUy7KLns7WLJHmAx4 2AzNumhElzdTaPsbTAs1/R3M+YckBaxq8lYrEXMyAeFxzKeZLGc8KwsR5d8h5nBwzn W4Hr6BPP1RJ8Dc1MDHr7vmn2B/SthEJHmmWCnFjs= Date: Sat, 24 Aug 2019 19:45:46 +0200 From: Marek Behun To: Andrew Lunn Cc: netdev@vger.kernel.org, Vivien Didelot , Florian Fainelli , David Ahern , Stephen Hemminger Subject: Re: [PATCH RFC net-next 0/3] Multi-CPU DSA support Message-ID: <20190824194546.5c436bd6@nic.cz> In-Reply-To: <20190824152407.GA8251@lunn.ch> References: <20190824024251.4542-1-marek.behun@nic.cz> <20190824152407.GA8251@lunn.ch> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Virus-Scanned: clamav-milter 0.100.3 at mail.nic.cz X-Virus-Status: Clean Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Sat, 24 Aug 2019 17:24:07 +0200 Andrew Lunn wrote: > So this is all about transmit from the host out the switch. What about > receive? How do you tell the switch which CPU interface it should use > for a port? Andrew, we use the same. The DSA slave implementation of ndo_set_iflink will also tell the switch driver to change the CPU port for that port. Patch 3 also adds operation port_change_cpu_port to the DSA switch operations. This is called from dsa_slave_set_iflink (at least in this first proposal). Marek