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=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 C5281C43603 for ; Wed, 18 Dec 2019 14:36:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 84249218AC for ; Wed, 18 Dec 2019 14:36:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576679780; bh=FpUdA1QKWT2FMoEcuoACKH1w02F3qC9LrxYVeOcepE0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=MLvLtQxH7HUU6zxvTs/FsoQw1E2hePdi7uX85CcmxEwkLBF0KvuE2TWxugOogaLkt I3Gz55HABX2c0rp+jDLVn1pc+ADunHoN2kGCpmXzcVpFQsX8eth60XwONm4AbKvc+4 QJcX+QvVTPU3n2vTqlFQvFf8YsXXDyFwIZl6wq2I= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727114AbfLROgP (ORCPT ); Wed, 18 Dec 2019 09:36:15 -0500 Received: from mail.kernel.org ([198.145.29.99]:41970 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727108AbfLROgP (ORCPT ); Wed, 18 Dec 2019 09:36:15 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BE05021582; Wed, 18 Dec 2019 14:36:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576679774; bh=FpUdA1QKWT2FMoEcuoACKH1w02F3qC9LrxYVeOcepE0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Z5JFSoDvpzTAXEgxhZ7iNHCLZuS4ul/I/bJ9fRGugJEaqGuSVh++cYgwa1TfAVnbv vH3NhLDpEGPmGVktvsZcR0DZsrZIb8gKL4o2X/eFyY9ICzUcbTBUhiliW/X6jogrLa puk47+4oaztkf/u+YpulP7S+2dY2IMw+V4FiFy1Y= Date: Wed, 18 Dec 2019 15:36:12 +0100 From: Greg Kroah-Hartman To: Nicholas Johnson Cc: Mika Westerberg , "linux-usb@vger.kernel.org" , Andreas Noever , Michael Jamet , Yehezkel Bernat , Rajmohan Mani , Lukas Wunner , Alan Stern , "Mario.Limonciello@dell.com" , Anthony Wong , Oliver Neukum , Christian Kellner , "David S . Miller" , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH v2 4/9] thunderbolt: Add initial support for USB4 Message-ID: <20191218143612.GB262880@kroah.com> References: <20191217123345.31850-1-mika.westerberg@linux.intel.com> <20191217123345.31850-5-mika.westerberg@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On Wed, Dec 18, 2019 at 09:34:45AM +0000, Nicholas Johnson wrote: > On Tue, Dec 17, 2019 at 03:33:40PM +0300, Mika Westerberg wrote: > > USB4 is the public specification based on Thunderbolt 3 protocol. There > > are some differences in register layouts and flows. In addition to PCIe > > and DP tunneling, USB4 supports tunneling of USB 3.x. USB4 is also > > backward compatible with Thunderbolt 3 (and older generations but the > > spec only talks about 3rd generation). USB4 compliant devices can be > > identified by checking USB4 version field in router configuration space. > > > > This patch adds initial support for USB4 compliant hosts and devices > > which enables following features provided by the existing functionality > > in the driver: > > > > - PCIe tunneling > > - Display Port tunneling > Nitpick: DisplayPort is a single word. Please learn to trim replies, it was a pain to read this message :(