** Description changed: [SRU Justfication] BugLink: https://bugs.launchpad.net/bugs/2119479 These binary firmware changes are required to fix the following issues (provided by vendor): Release Note: - Fix "PCIE AER: RxErr" issue - Fix "probe request Supported Rates Listed twice" issue - with driver patch: https://patchwork.kernel.org/project/linux-wireless/patch/[email protected]/ - Send Beacon frame (with MBSS IE) to driver directly for mac80211. - with driver patch: https://patchwork.kernel.org/project/linux-wireless/patch/[email protected]/ + + This driver change is also required: + https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/net/wireless/mediatek/mt76?id=74e756b9e28af3ee94a7ea480bb39694be5fbd96 + (applied from https://patchwork.kernel.org/project/linux- + wireless/patch/[email protected]/) [Impact] Addresses lack of some WiFi and Bluetooth functionality on mt7925 device and undefined behavior / unreliability when connecting to some APs. Specifically, this update changes how the beacon frame with MBSS IE is delivered to the driver, in conjunction with this kernel change: https://patchwork.kernel.org/project/linux- wireless/patch/[email protected]/ [Fix] Apply the following vendor-proposed patches from upstream: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/mediatek/mt7925?id=2ccae12c4f73bf130143ab7cc9c8546d25faac47 https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/mediatek/mt7925?id=ebf45cd0f8d0e98d08e7ecfc10342735425677b1 [Test Case] Verify that Wifi and BT connections can still be established with the updated blobs, and verify that MBSS functionality works as expected [Where problems could occur] Without these patches, affected wireless adapters connecting to 6GHz APs that broadcast MBSSID have undefined behavior. In various tests, it was observed that there were frequent disconnections in cases where the host was closer in proximity to the AP, but that there were instances where a connection could be maintained if they were farther away. If this firmware is used without https://patchwork.kernel.org/project/linux- wireless/patch/[email protected]/ being present in the running kernel, the firmware patch can cause some such devices to be unable to detect their APs regardless of distance. This could be perceived as a regression for users who did not observe this issue due to device positioning (which would be resolved once they update their kernel to include the related driver patch, which I will SRU into noble-generic and derivatives). However, given that the best case behavior for impacted devices without these patches is undefined behavior at best, I believe they are necessary/appropriate to SRU. + Regarding the kernel patch - this only adds the required handlers for + MBSS support. If any issues exist in the implementation of those new + functions, the user could experience unexpected behavior when attempting + to use MBSS functionality. + [Other Info] This update originates from a support request by Nvidia - - PRs into Ubuntu's linux-firmware: - Questing: https://kernel.ubuntu.com/forgejo/kernel/linux-firmware/pulls/196 - Plucky: https://kernel.ubuntu.com/forgejo/kernel/linux-firmware/pulls/197 - Noble: https://kernel.ubuntu.com/forgejo/kernel/linux-firmware/pulls/198
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2119479 Title: [SRU][Q/P/N:hwe-6.14] mt7925: Add MBSS support To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2119479/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
