Linux 6.2 Working More On WiFi 7, 800 Gbps Networking, Protective Load Balancing

Written by Michael Larabel in Linux Networking on 14 December 2022 at 05:27 AM EST. Add A Comment
The big batch of networking subsystem feature updates for the Linux 6.2 merge window has landed.

There is a lot of networking feature changes (as usual) this kernel cycle for Linux 6.2:

- Protective Load Balancing across switch links has been implemented in the TCP kernel code.

- The TUN network driver speed bumped from 10 Mbps to 10 Gbps.

- Preparations for 800 Gbps networking support.

- New wired hardware driver support covering the Marvell Octeon CNF95N and CCN10KB, Marvell Restera AC5X, WangXun 10 Gigabit, MotoComm YT8521, Microchip KSZ9563, Microsoft Azure Network Adapter, and Linux Automation 10Base-TIL adapter.

- New wireless driver work includes enabling MediaTek WiFi 7 802.11be devices and Realtek rtw8821cu, rtw8822bu, rtw8822cu and rtw8723du USB device support.

- New Bluetooth hardware support includes the Broadcom BCM4377/4378/4387 chipsets and Realtek RTL8852BE / RTL8723DS.

- Intel's IWLWIFI driver has enabled WiFi 7 Extremely High Throughput (EHT) PHY capabilities and 320 MHz channels support.

- The Realtek RTW89 WiFi driver now supports Wake-Over-WLAN functionality.

- Continued work around WiFi 7 enablement work, building off work laid on prior kernels.

- The IPSec code has added a new "packet offload" type to allow for complete header processing and crypto offloading.

- Bridging MAC Authentication Bypass (MAB) support.

- Support for user-defined BPF objects. This is used for ultimately allowing developers to build their own data structures like linked lists with BPF.

- Some GRO performance optimizations.

More details on all of the big networking changes for Linux 6.2 via this pull.
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