[SRU][P/N:hwe-6.14][PATCH v2 0/1] wifi: mt76: mt7925: add MBSSID support

[Mitchell Augustin]

BugLink: https://bugs.launchpad.net/bugs/2119479

SRU Justfication:

This driver change pairs with the following binary firmware changes, which
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/20250616063649.1100503-1-mingyen.hsieh@mediatek.com/
- Send Beacon frame (with MBSS IE) to driver directly for mac80211.
 - with driver patch: https://patchwork.kernel.org/project/linux-wireless/patch/20250729084932.264155-1-mingyen.hsieh@mediatek.com/

The linux-firmware changes listed above are addressed by https://bugs.launchpad.net/bugs/2121342

[Impact]

Addresses lack of some WiFi and Bluetooth MBSS 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/20250729084932.264155-1-mingyen.hsieh@mediatek.com/

Without these patches and the associated firmware 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.

[Fix]

Add MBSSID support functions to mt7925 driver

[Test Case]

Verify that Wifi and BT connections can still be established with the updated blobs and driver patch, and verify that MBSS functionality works as expected with 6GHz APs

[Where problems could occur]

This kernel patch 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.


Ming Yen Hsieh (1):
  wifi: mt76: mt7925: add MBSSID support

 .../net/wireless/mediatek/mt76/mt7925/main.c  |  1 +
 .../net/wireless/mediatek/mt76/mt7925/mcu.c   | 23 ++++++++++++++++++-
 .../net/wireless/mediatek/mt76/mt792x_core.c  |  7 +++++-
 3 files changed, 29 insertions(+), 2 deletions(-)

-- 
2.43.0