Linux 5.5 Bringing Thunderbolt Lane Bonding, DP Tunneling Updates
The latest Thunderbolt changes queued into Mika's "next" branch include:
- Support for Thunderbolt lane bonding to allow aggregating two 10/20 Gb/s lanes into a single 20/40 Gb/s bonded link.
- Updating of some Thunderbolt register names to match the text of the USB 4.0 specification.
- Titan Ridge controller updates for handling DisplayPort tunneling.
- DisplayPort adapter pairing and resource management as another bit of DP tunneling work for Thunderbolt 3 devices. There is also now bandwidth management support for DisplayPort tunnels.
On a related note, last month Intel did send out the initial USB 4.0 support for the Linux kernel though as of writing that has yet to be queued in the USB-next branch. So at this stage the USB 4.0 support might not be ready for the Linux 5.5 merge window opening in a few weeks.
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