thunderbolt

thunderbolt-drivers extension

Installation

See Installing Extensions.

Usage

Enable the thunderbolt module in Talos machine config. If you need Thunderbolt/USB4 networking, enable thunderbolt_net module as well.

machine:
  kernel:
    modules:
      - name: thunderbolt
      - name: thunderbolt_net

Verifiying

You can verify the modules are enabled by reading the /proc/modules where it should show the module is live.

For example:

❯ talosctl -n 192.168.42.15  read /proc/modules
thunderbolt_net 24576 - - Live 0xffffffffc0414000
thunderbolt 299008 - - Live 0xffffffffc03ca00

In addition, if you're using networking, you should be able to verify presence of the network interfaces, checking /sys/class/net directory.

For example:

❯ talosctl -n 192.168.42.15 ls /sys/class/net/ | grep -E 'NODE|thunderbolt'
NODE            NAME
192.168.42.15   thunderbolt0
192.168.42.15   thunderbolt1

You can also verify everything in dmesg:

❯ talosctl -n 192.168.42.15 dmesg
# look for lines like these:
10.100.52.1: kern:    info: [2023-07-23T16:47:28.22083266Z]: ACPI: bus type thunderbolt registered
10.100.52.1: kern:    info: [2023-07-23T16:47:30.48512066Z]: thunderbolt 0-0:1.1: new retimer found, vendor=0x8087 device=0x15ee
 SUBSYSTEM=thunderbolt
 DEVICE=+thunderbolt:0-0:1.1
10.100.52.1: kern:    info: [2023-07-23T16:47:32.76328066Z]: thunderbolt 1-0:1.1: new retimer found, vendor=0x8087 device=0x15ee
 SUBSYSTEM=thunderbolt
 DEVICE=+thunderbolt:1-0:1.1
10.100.52.1: kern:    info: [2023-07-23T16:47:37.34770966Z]: thunderbolt 0-1: new host found, vendor=0x8086 device=0x1
 SUBSYSTEM=thunderbolt
 DEVICE=+thunderbolt:0-1
10.100.52.1: kern:    info: [2023-07-23T16:47:37.34917566Z]: thunderbolt 0-1: Intel Corp. talos-node-2
 SUBSYSTEM=thunderbolt
 DEVICE=+thunderbolt:0-1
10.100.52.1: kern:    info: [2023-07-23T16:47:39.74636466Z]: thunderbolt 1-1: new host found, vendor=0x8086 device=0x1
 SUBSYSTEM=thunderbolt
 DEVICE=+thunderbolt:1-1
10.100.52.1: kern:    info: [2023-07-23T16:47:39.74767966Z]: thunderbolt 1-1: Intel Corp. talos-node-3
 SUBSYSTEM=thunderbolt
 DEVICE=+thunderbolt:1-1

Security Warning

This extension automatically authorizes all Thunderbolt devices during system boot, which poses potential security risks. Use at your own discretion.

Power Management

This extension automatically disabled power savings on all Thunderbolt ports, if you would like to re-enable that use the following udev rule in your machineconfig.

ACTION=="add", SUBSYSTEM=="thunderbolt", ATTR{power/control}="auto"