Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.31 as permitted sender) client-ip=23.128.96.31;
Received-SPF: Pass (protection.outlook.com: domain of amd.com designates
 165.204.84.17 as permitted sender) receiver=protection.outlook.com;
 client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C
From:   Sanath S <Sanath.S@amd.com>
To:     <mario.limonciello@amd.com>, <andreas.noever@gmail.com>,
        <michael.jamet@intel.com>, <mika.westerberg@linux.intel.com>,
        <YehezkelShB@gmail.com>, <linux-usb@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>
CC:     Sanath S <Sanath.S@amd.com>
Subject: [PATCH 0/2] Add support for downstream port reset(DPR)
Date:   Tue, 12 Dec 2023 19:30:45 +0530
Message-ID: <20231212140047.2021496-1-Sanath.S@amd.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Dec 2023 14:01:18.8990
 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: 58e0e8a4-fc56-48f8-433b-08dbfb1ad3b4
X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d
X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com]
X-MS-Exchange-CrossTenant-AuthSource: SN1PEPF0002636A.namprd02.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Anonymous
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4185
X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED,
	DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,
	MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE
	autolearn=unavailable autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on morse.vger.email
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (morse.vger.email [0.0.0.0]); Tue, 12 Dec 2023 06:01:43 -0800 (PST)

Tunnels created by boot firmware results in incorrect PCI resource
allocation, which results in failure of extending daisy chain.

This series aligns with windows behaviour of performing a teardown of
tunnels and resetting the downstream ports using DPR during the init
sequence.

Sanath S (2):
  thunderbolt: Introduce tb_switch_reset_ports(), tb_port_reset() and
    usb4_port_reset()
  thunderbolt: Teardown tunnels and reset downstream ports created by
    boot firmware

 drivers/thunderbolt/switch.c  |  31 ++++++++
 drivers/thunderbolt/tb.c      | 137 ++--------------------------------
 drivers/thunderbolt/tb.h      |   2 +
 drivers/thunderbolt/tb_regs.h |   1 +
 drivers/thunderbolt/usb4.c    |  39 ++++++++++
 5 files changed, 80 insertions(+), 130 deletions(-)

-- 
2.34.1