On 5/30/2023 1:22 AM, Felix Fietkau wrote:
On 30.05.23 04:42, Evan Quan wrote:
Due to electrical and mechanical constraints in certain platform
designs there may
be likely interference of relatively high-powered harmonics of the
(G-)DDR memory
clocks with local radio module frequency bands used by Wifi 6/6e/7.
To mitigate
possible RFI interference producers can advertise the frequencies in
use and
consumers can use this information to avoid using these frequencies for
sensitive features.
The whole patch set is based on 6.4-rc3. With some brief
introductions as below:
Patch1: Core ACPI interfaces needed to support WBRF feature.
Patch2 - 4: Enable WBRF support for some Mediatek and Qualcomm wifi
drivers.
Patch5 - 9: Enable WBRF support for AMD graphics driver.
Anson Tsao (1):
wifi: ath11k: Add support to the Qualcomm ath11k for ACPI WBRF
Evan Quan (6):
wifi: ath12k: Add support to the Qualcomm ath12k for ACPI WBRF
drm/amd/pm: update driver_if and ppsmc headers for coming wbrf
feature
drm/amd/pm: setup the framework to support Wifi RFI mitigation
feature
drm/amd/pm: add flood detection for wbrf events
drm/amd/pm: enable Wifi RFI mitigation feature support for SMU13.0.0
drm/amd/pm: enable Wifi RFI mitigation feature support for SMU13.0.7
Mario Limonciello (2):
drivers/acpi: Add support for Wifi band RF mitigations
mt76: Add support to the Mediatek MT7921 for ACPI WBRF
Wouldn't it make more sense to put this in mac80211 or cfg80211
instead of duplicating the logic in different drivers?
- Felix
I think it's generally a sensible proposal, but there are a few things
that need to be agreed upon to find the right places
for everything.
1) The actual notifying, would it make sense to put it directly into
these functions?
ieee80211_add_chanctx / ieee80211_del_chanctx
2) "Where" should the WBRF support detection need to happen?
wbrf_supported_producer needs to have an argument of the ACPI companion
for the device.
What level *should* the ACPI device be found?
Should that still be individual drivers calling a mac80211 helper
function to indicate they're opting in?
Or should there there be some CONFIG_ACPI_WBRF gated helper as part of a
driver registration?
