From patchwork Wed Nov 4 14:00:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mika Westerberg X-Patchwork-Id: 11880729 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=-6.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 DDF30C388F7 for ; Wed, 4 Nov 2020 14:00:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 96401221E2 for ; Wed, 4 Nov 2020 14:00:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730279AbgKDOAq (ORCPT ); Wed, 4 Nov 2020 09:00:46 -0500 Received: from mga01.intel.com ([192.55.52.88]:47942 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730203AbgKDOAg (ORCPT ); Wed, 4 Nov 2020 09:00:36 -0500 IronPort-SDR: 4FCflTJyn+1mrvkKqqRHq0oWtZ6L8rdEP/bn7/4bLSFhy/57M7iB6agukgPpm7KzOc5NxiidID NRxze1CSz/9Q== X-IronPort-AV: E=McAfee;i="6000,8403,9794"; a="187077836" X-IronPort-AV: E=Sophos;i="5.77,451,1596524400"; d="scan'208";a="187077836" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Nov 2020 06:00:34 -0800 IronPort-SDR: KNFQ9mLLbNQg7JIRyZggq9tHUHfJQpEtGklvhIRX7LZAMFGG5mUk/WRXjx8XdFvAZY+q9hylfN G+UDhatgXmzA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,451,1596524400"; d="scan'208";a="352684825" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga008.jf.intel.com with ESMTP; 04 Nov 2020 06:00:31 -0800 Received: by black.fi.intel.com (Postfix, from userid 1001) id D017614B; Wed, 4 Nov 2020 16:00:30 +0200 (EET) From: Mika Westerberg To: linux-usb@vger.kernel.org Cc: Michael Jamet , Yehezkel Bernat , Andreas Noever , Isaac Hazan , Lukas Wunner , "David S . Miller" , Mika Westerberg , netdev@vger.kernel.org Subject: [PATCH 00/10] thunderbolt: Add DMA traffic test driver Date: Wed, 4 Nov 2020 17:00:20 +0300 Message-Id: <20201104140030.6853-1-mika.westerberg@linux.intel.com> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi all, This series adds a new Thunderbolt service driver that can be used on manufacturing floor to test that each Thunderbolt/USB4 port is functional. It can be done either using a special loopback dongle that has RX and TX lanes crossed, or by connecting a cable back to the host (for those who don't have these dongles). This takes advantage of the existing XDomain protocol and creates XDomain devices for the loops back to the host where the DMA traffic test driver can bind to. The DMA traffic test driver creates a tunnel through the fabric and then sends and receives data frames over the tunnel checking for different errors. Isaac Hazan (4): thunderbolt: Add link_speed and link_width to XDomain thunderbolt: Add functions for enabling and disabling lane bonding on XDomain thunderbolt: Add DMA traffic test driver MAINTAINERS: Add Isaac as maintainer of Thunderbolt DMA traffic test driver Mika Westerberg (6): thunderbolt: Do not clear USB4 router protocol adapter IFC and ISE bits thunderbolt: Find XDomain by route instead of UUID thunderbolt: Create XDomain devices for loops back to the host thunderbolt: Create debugfs directory automatically for services thunderbolt: Make it possible to allocate one directional DMA tunnel thunderbolt: Add support for end-to-end flow control .../ABI/testing/sysfs-bus-thunderbolt | 28 + MAINTAINERS | 6 + drivers/net/thunderbolt.c | 2 +- drivers/thunderbolt/Kconfig | 13 + drivers/thunderbolt/Makefile | 3 + drivers/thunderbolt/ctl.c | 4 +- drivers/thunderbolt/debugfs.c | 24 + drivers/thunderbolt/dma_test.c | 736 ++++++++++++++++++ drivers/thunderbolt/nhi.c | 36 +- drivers/thunderbolt/path.c | 13 +- drivers/thunderbolt/switch.c | 33 +- drivers/thunderbolt/tb.h | 8 + drivers/thunderbolt/tunnel.c | 50 +- drivers/thunderbolt/xdomain.c | 144 +++- include/linux/thunderbolt.h | 18 +- 15 files changed, 1077 insertions(+), 41 deletions(-) create mode 100644 drivers/thunderbolt/dma_test.c Acked-by: Yehezkel Bernat