RE: [PATCH v8 0/8] thunderbolt: Introducing Thunderbolt(TM) Networking

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> -----Original Message-----
> From: Amir Levy [mailto:amir.jer.levy@xxxxxxxxx]
> Sent: Wednesday, September 28, 2016 9:44 AM
> To: gregkh@xxxxxxxxxxxxxxxxxxx
> Cc: andreas.noever@xxxxxxxxx; bhelgaas@xxxxxxxxxx; corbet@xxxxxxx;
> linux-kernel@xxxxxxxxxxxxxxx; linux-pci@xxxxxxxxxxxxxxx;
> netdev@xxxxxxxxxxxxxxx; linux-doc@xxxxxxxxxxxxxxx; Limonciello, Mario
> <Mario_Limonciello@xxxxxxxx>; thunderbolt-linux@xxxxxxxxx;
> mika.westerberg@xxxxxxxxx; tomas.winkler@xxxxxxxxx;
> xiong.y.zhang@xxxxxxxxx; Amir Levy <amir.jer.levy@xxxxxxxxx>
> Subject: [PATCH v8 0/8] thunderbolt: Introducing Thunderbolt(TM)
> Networking
> 
> This driver enables Thunderbolt Networking on non-Apple platforms
> running Linux.
> 
> Thunderbolt Networking provides peer-to-peer connections to transfer
> files between computers, perform PC migrations, and/or set up small
> workgroups with shared storage.
> 
> This is a virtual connection that emulates an Ethernet adapter that
> enables Ethernet networking with the benefit of Thunderbolt superfast
> medium capability.
> 
> Thunderbolt Networking enables two hosts and several devices that
> have a Thunderbolt controller to be connected together in a linear
> (Daisy chain) series from a single port.
> 
> Thunderbolt Networking for Linux is compatible with Thunderbolt
> Networking on systems running macOS or Windows and also supports
> Thunderbolt generation 2 and 3 controllers.
> 
> Note that all pre-existing Thunderbolt generation 3 features, such as
> USB, Display and other Thunderbolt device connectivity will continue
> to function exactly as they did prior to enabling Thunderbolt Networking.
> 
> Code and Software Specifications:
> This kernel code creates a virtual ethernet device for computer to
> computer communication over a Thunderbolt cable.
> The new driver is a separate driver to the existing Thunderbolt driver.
> It is designed to work on systems running Linux that
> interface with Intel Connection Manager (ICM) firmware based
> Thunderbolt controllers that support Thunderbolt Networking.
> The kernel code operates in coordination with the Thunderbolt user-
> space daemon to implement full Thunderbolt networking functionality.
> 
> Hardware Specifications:
> Thunderbolt Hardware specs have not yet been published but are used
> where necessary for register definitions.
> 
> Changes since v7:
>  - Removed debug prints
>  - Edited error prints
>  - Edited copyright notice
>  - Changed the Kconfig patch to be after the code changes
> 
> These patches were pushed to GitHub where they can be reviewed more
> comfortably with green/red highlighting:
> 	https://github.com/01org/thunderbolt-software-kernel-tree
> 
> Daemon code:
> 	https://github.com/01org/thunderbolt-software-daemon
> 
> For reference, here's a link to version 6:
> [v7]:	https://lkml.org/lkml/2016/9/27/244
> 
> Amir Levy (8):
>   thunderbolt: Macro rename
>   thunderbolt: Updating the register definitions
>   thunderbolt: Communication with the ICM (firmware)
>   thunderbolt: Networking state machine
>   thunderbolt: Networking transmit and receive
>   thunderbolt: Kconfig for Thunderbolt Networking
>   thunderbolt: Networking doc
>   thunderbolt: Adding maintainer entry
> 
>  Documentation/00-INDEX                   |    2 +
>  Documentation/thunderbolt/networking.txt |  132 ++
>  MAINTAINERS                              |    8 +-
>  drivers/thunderbolt/Kconfig              |   27 +-
>  drivers/thunderbolt/Makefile             |    3 +-
>  drivers/thunderbolt/icm/Makefile         |    2 +
>  drivers/thunderbolt/icm/icm_nhi.c        | 1514 ++++++++++++++++++++
>  drivers/thunderbolt/icm/icm_nhi.h        |   82 ++
>  drivers/thunderbolt/icm/net.c            | 2254
> ++++++++++++++++++++++++++++++
>  drivers/thunderbolt/icm/net.h            |  287 ++++
>  drivers/thunderbolt/nhi_regs.h           |  115 +-
>  11 files changed, 4417 insertions(+), 9 deletions(-)
>  create mode 100644 Documentation/thunderbolt/networking.txt
>  create mode 100644 drivers/thunderbolt/icm/Makefile
>  create mode 100644 drivers/thunderbolt/icm/icm_nhi.c
>  create mode 100644 drivers/thunderbolt/icm/icm_nhi.h
>  create mode 100644 drivers/thunderbolt/icm/net.c
>  create mode 100644 drivers/thunderbolt/icm/net.h
> 
> --
> 2.7.4

Hi Amir,

I've tested your v8 series on Dell hardware with Thunderbolt 
Controllers again between a Linux and Windows box.
Functionally it's working well.

Tested-By: Mario Limonciello <mario.limonciello@xxxxxxxx>

Andreas,

Following the history of this thread, I believe Greg was still looking for 
an ack from you that Amir is using the interface properly.

Thanks,
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