linux-kernel - Re: [PATCH 0/9] Support Wifi RFI interference mitigation feature

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Message-ID: <1502188c-c527-3038-2163-5ca4f51ed735@nbd.name>
Date:   Tue, 30 May 2023 08:22:29 +0200
From:   Felix Fietkau <nbd@....name>
To:     Evan Quan <evan.quan@....com>, rafael@...nel.org, lenb@...nel.org,
        alexander.deucher@....com, christian.koenig@....com,
        Xinhui.Pan@....com, airlied@...il.com, daniel@...ll.ch,
        kvalo@...nel.org, lorenzo@...nel.org, ryder.lee@...iatek.com,
        shayne.chen@...iatek.com, sean.wang@...iatek.com,
        matthias.bgg@...il.com, angelogioacchino.delregno@...labora.com,
        Mario.Limonciello@....com, Lijo.Lazar@....com
Cc:     linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-wireless@...r.kernel.org, ath11k@...ts.infradead.org,
        ath12k@...ts.infradead.org
Subject: Re: [PATCH 0/9] Support Wifi RFI interference mitigation feature

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