linux-kernel - Re: [PATCH] wifi: ath12k: remove return for empty tx bitrate in mac_op_sta

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Message-ID: <c101bebe-ee13-4f34-b7b2-c044396726ff@oss.qualcomm.com>
Date: Sun, 26 Jan 2025 10:31:35 -0800
From: Jeff Johnson <jeff.johnson@....qualcomm.com>
To: Remi Pommarel <repk@...plefau.lt>, ath12k@...ts.infradead.org,
        linux-wireless@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Kalle Valo <kvalo@...nel.org>, Jeff Johnson <jjohnson@...nel.org>
Subject: Re: [PATCH] wifi: ath12k: remove return for empty tx bitrate in
 mac_op_sta_statistics

On 1/17/2025 11:30 AM, Remi Pommarel wrote:
> Currently in ath12k_mac_op_sta_statistics() there is the following
> logic:
> 
>     if (!arsta->txrate.legacy && !arsta->txrate.nss)
>         return;
> 
> Because ath12k_sta_statistics is used to report many info to iw wlan0 link,
> if it return for empty legacy and nss of arsta->txrate, then the other
> stats after it will not be set.
> 
> To address this issue remove the return and instead invert the logic to set
> the txrate logic if (arsta->txrate.legacy || arsta->txrate.nss).
> 
> The same was done also in both ath10k with commit 1cd6ba8ae33e ("ath10k:
> remove return for NL80211_STA_INFO_TX_BITRATE") and ath11k as well with
> commit 1d795645e1ee ("ath11k: remove return for empty tx bitrate in
> mac_op_sta_statistics").
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
> Signed-off-by: Remi Pommarel <repk@...plefau.lt>
> ---
>  drivers/net/wireless/ath/ath12k/mac.c | 29 +++++++++++++--------------
>  1 file changed, 14 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
> index d493ec812055..cbc79ec7ac47 100644
> --- a/drivers/net/wireless/ath/ath12k/mac.c
> +++ b/drivers/net/wireless/ath/ath12k/mac.c
> @@ -8912,21 +8912,20 @@ static void ath12k_mac_op_sta_statistics(struct ieee80211_hw *hw,
>  	sinfo->tx_duration = arsta->tx_duration;
>  	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_DURATION);
>  
> -	if (!arsta->txrate.legacy && !arsta->txrate.nss)
> -		return;
> -
> -	if (arsta->txrate.legacy) {
> -		sinfo->txrate.legacy = arsta->txrate.legacy;
> -	} else {
> -		sinfo->txrate.mcs = arsta->txrate.mcs;
> -		sinfo->txrate.nss = arsta->txrate.nss;
> -		sinfo->txrate.bw = arsta->txrate.bw;
> -		sinfo->txrate.he_gi = arsta->txrate.he_gi;
> -		sinfo->txrate.he_dcm = arsta->txrate.he_dcm;
> -		sinfo->txrate.he_ru_alloc = arsta->txrate.he_ru_alloc;
> -	}
> -	sinfo->txrate.flags = arsta->txrate.flags;
> -	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
> +	if (arsta->txrate.legacy || arsta->txrate.nss) {
> +		if (arsta->txrate.legacy) {
> +			sinfo->txrate.legacy = arsta->txrate.legacy;
> +		} else {
> +			sinfo->txrate.mcs = arsta->txrate.mcs;
> +			sinfo->txrate.nss = arsta->txrate.nss;
> +			sinfo->txrate.bw = arsta->txrate.bw;
> +			sinfo->txrate.he_gi = arsta->txrate.he_gi;
> +			sinfo->txrate.he_dcm = arsta->txrate.he_dcm;
> +			sinfo->txrate.he_ru_alloc = arsta->txrate.he_ru_alloc;
> +		}
> +		sinfo->txrate.flags = arsta->txrate.flags;
> +		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
> +	}
>  
>  	/* TODO: Use real NF instead of default one. */
>  	sinfo->signal = arsta->rssi_comb + ATH12K_DEFAULT_NOISE_FLOOR;

This patch conflicts with the following that is in the pending branch:
https://patchwork.kernel.org/project/linux-wireless/patch/20250115063537.35797-2-quic_lingbok@quicinc.com/

The pending patch adds eht settings:
+		sinfo->txrate.eht_gi = arsta->txrate.eht_gi;
+		sinfo->txrate.eht_ru_alloc = arsta->txrate.eht_ru_alloc;

The pending branch will be promoted to ath-next & main soon, so please rebase
after that occurs

/jeff