linux-kernel - Re: [PATCH 2/2] thunderbolt: Teardown tunnels and reset downstream ports created by boot firmware

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Message-ID: <20231212151046.GF1074920@black.fi.intel.com>
Date:   Tue, 12 Dec 2023 17:10:46 +0200
From:   Mika Westerberg <mika.westerberg@...ux.intel.com>
To:     Sanath S <Sanath.S@....com>
Cc:     mario.limonciello@....com, andreas.noever@...il.com,
        michael.jamet@...el.com, YehezkelShB@...il.com,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] thunderbolt: Teardown tunnels and reset downstream
 ports created by boot firmware

On Tue, Dec 12, 2023 at 07:30:47PM +0530, Sanath S wrote:
> Boot firmware might have created tunnels of its own. Since we cannot
> be sure they are usable for us. Tear them down and reset the ports
> to handle it as a new hotplug.
> 
> Since we teardown the tunnels, Discovering of tunnels is not needed.

Let's leave this for non-USB4 (That's TBT1-3) as we agreed.