linux-kernel - Re: [RFC PATCH 06/22] thunderbolt: Add support for lane bonding

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Date:   Wed, 02 Oct 2019 16:21:06 +0200
From:   Oliver Neukum <oneukum@...e.com>
To:     Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Anthony Wong <anthony.wong@...onical.com>,
        Mario.Limonciello@...l.com,
        Andreas Noever <andreas.noever@...il.com>,
        Yehezkel Bernat <YehezkelShB@...il.com>,
        Michael Jamet <michael.jamet@...el.com>,
        Rajmohan Mani <rajmohan.mani@...el.com>,
        Nicholas Johnson <nicholas.johnson-opensource@...look.com.au>,
        Alan Stern <stern@...land.harvard.edu>,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        Lukas Wunner <lukas@...ner.de>
Subject: Re: [RFC PATCH 06/22] thunderbolt: Add support for lane bonding

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.

	Regards
		Oliver