Merge tag 'thunderbolt-for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-next

Mika writes:

thunderbolt: Changes for v5.9 merge window

This includes following Thunderbolt/USB4 changes for v5.9 merge window:

  * Improvements around NHI (Native Host Interface) HopID allocation

  * Improvements to tunneling and USB3 bandwidth management support

  * Add KUnit tests for path walking and tunneling

  * Initial support for USB4 retimer firmware upgrade

  * Implement Thunderbolt device firmware upgrade mechanism that runs
    the NVM image authentication when the device is disconnected.

  * A couple of small non-critical fixes

* tag 'thunderbolt-for-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt: (32 commits)
  thunderbolt: Fix old style declaration warning
  thunderbolt: Add support for authenticate on disconnect
  thunderbolt: Add support for separating the flush to SPI and authenticate
  thunderbolt: Ensure left shift of 512 does not overflow a 32 bit int
  thunderbolt: Add support for on-board retimers
  thunderbolt: Implement USB4 port sideband operations for retimer access
  thunderbolt: Retry USB4 block read operation
  thunderbolt: Generalize usb4_switch_do_[read|write]_data()
  thunderbolt: Split common NVM functionality into a separate file
  thunderbolt: Add Intel USB-IF ID to the NVM upgrade supported list
  thunderbolt: Add KUnit tests for tunneling
  thunderbolt: Add USB3 bandwidth management
  thunderbolt: Make tb_port_get_link_speed() available to other files
  thunderbolt: Implement USB3 bandwidth negotiation routines
  thunderbolt: Increase DP DPRX wait timeout
  thunderbolt: Report consumed bandwidth in both directions
  thunderbolt: Make usb4_switch_map_pcie_down() also return enabled ports
  thunderbolt: Make usb4_switch_map_usb3_down() also return enabled ports
  thunderbolt: Do not tunnel USB3 if link is not USB4
  thunderbolt: Add DP IN resources for all routers
  ...

1 files changed, 55 insertions, 2 deletions

diff --git a/Documentation/ABI/testing/sysfs-bus-thunderbolt b/Documentation/ABI/testing/sysfs-bus-thunderbolt
index 82e80de78dd0..dd565c378b40 100644
--- a/Documentation/ABI/testing/sysfs-bus-thunderbolt
+++ b/Documentation/ABI/testing/sysfs-bus-thunderbolt
@@ -178,11 +178,18 @@ KernelVersion:	4.13
 Contact:	thunderbolt-software@lists.01.org
 Description:	When new NVM image is written to the non-active NVM
 		area (through non_activeX NVMem device), the
-		authentication procedure is started by writing 1 to
-		this file. If everything goes well, the device is
+		authentication procedure is started by writing to
+		this file.
+		If everything goes well, the device is
 		restarted with the new NVM firmware. If the image
 		verification fails an error code is returned instead.
 
+		This file will accept writing values "1" or "2"
+		- Writing "1" will flush the image to the storage
+		area and authenticate the image in one action.
+		- Writing "2" will run some basic validation on the image
+		and flush it to the storage area.
+
 		When read holds status of the last authentication
 		operation if an error occurred during the process. This
 		is directly the status value from the DMA configuration
@@ -236,3 +243,49 @@ KernelVersion:	4.15
 Contact:	thunderbolt-software@lists.01.org
 Description:	This contains XDomain service specific settings as
 		bitmask. Format: %x
+
+What:		/sys/bus/thunderbolt/devices/<device>:<port>.<index>/device
+Date:		Oct 2020
+KernelVersion:	v5.9
+Contact:	Mika Westerberg <mika.westerberg@linux.intel.com>
+Description:	Retimer device identifier read from the hardware.
+
+What:		/sys/bus/thunderbolt/devices/<device>:<port>.<index>/nvm_authenticate
+Date:		Oct 2020
+KernelVersion:	v5.9
+Contact:	Mika Westerberg <mika.westerberg@linux.intel.com>
+Description:	When new NVM image is written to the non-active NVM
+		area (through non_activeX NVMem device), the
+		authentication procedure is started by writing 1 to
+		this file. If everything goes well, the device is
+		restarted with the new NVM firmware. If the image
+		verification fails an error code is returned instead.
+
+		When read holds status of the last authentication
+		operation if an error occurred during the process.
+		Format: %x.
+
+What:		/sys/bus/thunderbolt/devices/<device>:<port>.<index>/nvm_version
+Date:		Oct 2020
+KernelVersion:	v5.9
+Contact:	Mika Westerberg <mika.westerberg@linux.intel.com>
+Description:	Holds retimer NVM version number. Format: %x.%x, major.minor.
+
+What:		/sys/bus/thunderbolt/devices/<device>:<port>.<index>/vendor
+Date:		Oct 2020
+KernelVersion:	v5.9
+Contact:	Mika Westerberg <mika.westerberg@linux.intel.com>
+Description:	Retimer vendor identifier read from the hardware.
+
+What:		/sys/bus/thunderbolt/devices/.../nvm_authenticate_on_disconnect
+Date:		Oct 2020
+KernelVersion:	v5.9
+Contact:	Mario Limonciello <mario.limonciello@dell.com>
+Description:	For supported devices, automatically authenticate the new Thunderbolt
+		image when the device is disconnected from the host system.
+
+		This file will accept writing values "1" or "2"
+		- Writing "1" will flush the image to the storage
+		area and prepare the device for authentication on disconnect.
+		- Writing "2" will run some basic validation on the image
+		and flush it to the storage area.