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

-----Original Message-----
From: Amir Levy [mailto:<redacted>]
Sent: Wednesday, September 28, 2016 9:44 AM
To: gregkh@linuxfoundation.org
Cc: andreas.noever@gmail.com; bhelgaas@google.com; corbet@lwn.net;
linux-kernel@vger.kernel.org; linux-pci@vger.kernel.org;
netdev@vger.kernel.org; linux-doc@vger.kernel.org; Limonciello, Mario
[off-list ref]; thunderbolt-linux@intel.com;
mika.westerberg@intel.com; tomas.winkler@intel.com;
xiong.y.zhang@intel.com; Amir Levy [off-list ref]
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 <redacted>

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,