Linux 6.3 Features: AMD Auto IBRS To Steam Deck Controller Interface, IPv4 BIG TCP & More

File-Systems / Storage:

- A sizable EXT4 Direct I/O performance optimization.

- BFQ tuning for multi-actuator drives.

- Minor F2FS file-system enhancements.

- MMC/SD support now suggests the BFQ I/O scheduler to ease the kernel build for such systems.

- Tmpfs IDMAPPED mounts support that is useful for systemd, Kubernetes, and other tasks.

- AES-SHA2 encryption for NFSD along with some memory safety code improvements.

- Some nice speed-ups for the Btrfs file-system driver.

- A low-latency decompression option for EROFS.

Networking:

- The new Qualcomm ath12k driver was merged for supporting Qualcomm's next-gen WiFi 7 wireless chipsets.

- IPv4 BIG TCP support for better network performance, similar to the existing BIG TCP for IPv6.

- NVIDIA BlueField 3 DPU Ethernet support.

- Realtek RTL8188EU WiFi adapter support.

Other Hardware:

- HID-BPF merged and there is also native Steam Deck Controller interface support as part of the HID changes.

- Sony DualShock 4 controller support is removed from hid-sony now that since Linux 6.2 it's been supported in the official hid-playstation driver instead.

- Logitech G923 racing wheel controller support.

- Proper support for the 8BitDo Pro 2 wired controller for Linux gamers.

- Sensor monitoring for many ASUS B650/B660/X670 ASUS Ryzen motherboards.

- Thunderbolt / USB4 DisplayPort Bandwidth Allocation Mode support.

- Intel PMCI support for their Max 10 FPGAs.

- CXL RAM region support and other updates around the Compute Express Link subsystem.

- Audio support for the Tesla FSD SoC.

- Support for more Aquacomputer devices.

- Support for the IT87952E super I/O controller found in some newer desktop motherboards.

- Dropping support for some old ARM boards/machines.