linux-kernel - Re: [PATCH ath-next 0/2] wifi: ath12k: use real noise floor value

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <500a10c9-c56e-4192-818e-8e07ef6c51f4@oss.qualcomm.com>
Date: Mon, 23 Jun 2025 08:00:48 -0700
From: Jeff Johnson <jeff.johnson@....qualcomm.com>
To: Aditya Kumar Singh <aditya.kumar.singh@....qualcomm.com>,
        Jeff Johnson <jjohnson@...nel.org>
Cc: linux-wireless@...r.kernel.org, ath12k@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        Raj Kumar Bhagat <quic_rajkbhag@...cinc.com>
Subject: Re: [PATCH ath-next 0/2] wifi: ath12k: use real noise floor value

On 5/28/2025 4:23 AM, Aditya Kumar Singh wrote:
> At present, the ATH12K_DEFAULT_NOISE_FLOOR (-95) is used to calculate RSSI
> value, providing an estimated noise floor value. Consequently, the RSSI
> value is also approximate. This works but however, using actual noise floor
> value will enable the reporting of the true RSSI value.
> 
> The firmware possesses the necessary data to determine the actual noise
> floor. This data is provided to the host via the WMI event
> WMI_PDEV_RSSI_DBM_CONVERSION_PARAMS_INFO_EVENTID, which includes the
> runtime parameters needed for calculating the real noise floor in dBm. This
> event is triggered by the firmware during channel changes, temperature
> offset adjustments, and hardware chainmask modifications.
> 
> Add support to handle and parse this WMI event. Use the received values to
> calculate and store the noise floor value and use at the required places.
> 
> ---
> Raj Kumar Bhagat (2):
>       wifi: ath12k: handle WMI event for real noise floor calculation
>       wifi: ath12k: use real noise floor instead of default value
> 
>  drivers/net/wireless/ath/ath12k/core.h   |  17 +++
>  drivers/net/wireless/ath/ath12k/dp_mon.c |   7 +-
>  drivers/net/wireless/ath/ath12k/dp_tx.c  |  20 ++-
>  drivers/net/wireless/ath/ath12k/mac.c    |  14 +-
>  drivers/net/wireless/ath/ath12k/wmi.c    | 233 ++++++++++++++++++++++++++++++-
>  drivers/net/wireless/ath/ath12k/wmi.h    |  42 ++++++
>  6 files changed, 324 insertions(+), 9 deletions(-)
> ---
> base-commit: 3d933084a072fd5fb5da54c06a017abc0412c86f
> change-id: 20250513-support_real_noise_floor-205986936cd3

This series no longer applies cleanly on ath/main, please rebase

Applying: wifi: ath12k: handle WMI event for real noise floor calculation
Using index info to reconstruct a base tree...
M       drivers/net/wireless/ath/ath12k/core.h
M       drivers/net/wireless/ath/ath12k/mac.c
M       drivers/net/wireless/ath/ath12k/wmi.c
M       drivers/net/wireless/ath/ath12k/wmi.h
Falling back to patching base and 3-way merge...
Auto-merging drivers/net/wireless/ath/ath12k/wmi.h
CONFLICT (content): Merge conflict in drivers/net/wireless/ath/ath12k/wmi.h
Auto-merging drivers/net/wireless/ath/ath12k/wmi.c
Auto-merging drivers/net/wireless/ath/ath12k/mac.c
Auto-merging drivers/net/wireless/ath/ath12k/core.h
Recorded preimage for 'drivers/net/wireless/ath/ath12k/wmi.h'
error: Failed to merge in the changes.
Patch failed at 0001 wifi: ath12k: handle WMI event for real noise floor calculation

/jeff