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Date: Tue, 19 Sep 2017 01:21:44 +0200 From: Andrew Lunn <andrew@...n.ch> To: Mika Westerberg <mika.westerberg@...ux.intel.com> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "David S . Miller" <davem@...emloft.net>, Andreas Noever <andreas.noever@...il.com>, Michael Jamet <michael.jamet@...el.com>, Yehezkel Bernat <yehezkel.bernat@...el.com>, Amir Levy <amir.jer.levy@...el.com>, Mario.Limonciello@...l.com, Lukas Wunner <lukas@...ner.de>, Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, linux-kernel@...r.kernel.org, netdev@...r.kernel.org Subject: Re: [PATCH 16/16] thunderbolt: Add support for networking over Thunderbolt cable On Mon, Sep 18, 2017 at 06:30:49PM +0300, Mika Westerberg wrote: > From: Amir Levy <amir.jer.levy@...el.com> > > ThunderboltIP is a protocol created by Apple to tunnel IP/ethernet > traffic over a Thunderbolt cable. The protocol consists of configuration > phase where each side sends ThunderboltIP login packets (the protocol is > determined by UUID in the XDomain packet header) over the configuration > channel. Once both sides get positive acknowledgment to their login > packet, they configure high-speed DMA path accordingly. This DMA path is > then used to transmit and receive networking traffic. > > This patch creates a virtual ethernet interface the host software can > use in the same way as any other networking interface. Once the > interface is brought up successfully network packets get tunneled over > the Thunderbolt cable to the remote host and back. > > The connection is terminated by sending a ThunderboltIP logout packet > over the configuration channel. We do this when the network interface is > brought down by user or the driver is unloaded. > > Signed-off-by: Amir Levy <amir.jer.levy@...el.com> > Signed-off-by: Michael Jamet <michael.jamet@...el.com> > Signed-off-by: Mika Westerberg <mika.westerberg@...ux.intel.com> > Reviewed-by: Yehezkel Bernat <yehezkel.bernat@...el.com> > --- > Documentation/admin-guide/thunderbolt.rst | 24 + > drivers/thunderbolt/Kconfig | 12 + > drivers/thunderbolt/Makefile | 3 + > drivers/thunderbolt/net.c | 1392 +++++++++++++++++++++++++++++ > 4 files changed, 1431 insertions(+) > create mode 100644 drivers/thunderbolt/net.c Hi Mika Could this be renamed to driver/net/thunderbolt.c? At minimum, it needs a MAINTAINER entry pointing to netdev, so patches get reviewed by netdev people. However, since the driver seems to be a lot more netdev than thunderbolt, placing it in driver/net could be better. Thanks Andrew
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