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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 A7335C352AA for ; Wed, 2 Oct 2019 14:30:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 88B052133F for ; Wed, 2 Oct 2019 14:30:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728148AbfJBOa0 (ORCPT ); Wed, 2 Oct 2019 10:30:26 -0400 Received: from mga06.intel.com ([134.134.136.31]:47660 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726374AbfJBOaZ (ORCPT ); Wed, 2 Oct 2019 10:30:25 -0400 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 02 Oct 2019 07:30:25 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,574,1559545200"; d="scan'208";a="205353422" Received: from lahna.fi.intel.com (HELO lahna) ([10.237.72.157]) by fmsmga001.fm.intel.com with SMTP; 02 Oct 2019 07:30:21 -0700 Received: by lahna (sSMTP sendmail emulation); Wed, 02 Oct 2019 17:30:20 +0300 Date: Wed, 2 Oct 2019 17:30:20 +0300 From: Mika Westerberg To: Oliver Neukum Cc: Greg Kroah-Hartman , Anthony Wong , Mario.Limonciello@dell.com, Andreas Noever , Yehezkel Bernat , Michael Jamet , Rajmohan Mani , Nicholas Johnson , Alan Stern , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Lukas Wunner Subject: Re: [RFC PATCH 06/22] thunderbolt: Add support for lane bonding Message-ID: <20191002143020.GG2819@lahna.fi.intel.com> References: <20191001113830.13028-1-mika.westerberg@linux.intel.com> <20191001113830.13028-7-mika.westerberg@linux.intel.com> <20191001123808.GA2954373@kroah.com> <20191001125320.GN2714@lahna.fi.intel.com> <1570026066.2472.15.camel@suse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1570026066.2472.15.camel@suse.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On Wed, Oct 02, 2019 at 04:21:06PM +0200, Oliver Neukum wrote: > Am Dienstag, den 01.10.2019, 15:53 +0300 schrieb Mika Westerberg: > > > > > > Are we only going to be allowed to "bond" two links together? Or will > > > we be doing more than 2 in the future? If more, then we might want to > > > think of a different way to specify these... > > > > AFAICT only two lanes are available in USB4. This goes over USB type-C > > using the two lanes there. > > > > Of course I don't know if in future there will be USB4 1.1 or something > > that adds more lanes so if you think there is a better way to specify > > these, I'm happy to implement that instead :) > > If this ever can become asymmetric this interface is going to turn > around and bite. Don't think it can be asymmetric but I'm open to all ideas how to make it more flexible :-)