Hello everyone,
on the Arch Linux Bugtracker[1] Benjamin (also added in CC) reported that his MT7925 wifi card has halved it's throughput when updating from the v6.13.1 to the v6.13.2 stable kernel. The problem is still present in the 6.13.5 stable kernel.
We have bisected this issue together and found the backporting of the following commit responsible for this issue:
4cf9f08632c0 ("wifi: mt76: mt7925: Update mt7925_mcu_uni_[tx,rx]_ba for MLO")
We unfortunately didn't have a chance to test the mainline releases as the reporter uses the (out of tree) nvidia modules that were not compatible with mainline release at the time of testing. We will soon test against Mainline aswell.
I have attached dmesg outputs of a good and a bad boot aswell as his other hardware specs and will be available to debug this further.
Cheers, Christian
[1]: https://gitlab.archlinux.org/archlinux/packaging/packages/linux/-/issues/112