linux-kernel - Re: [PATCH ath-next v2 6/6] wifi: ath11k: Register handler for CFR capture event

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Message-ID: <52b34262-ed22-43a1-b6dd-cea37c33d627@oss.qualcomm.com>
Date: Wed, 5 Nov 2025 10:49:45 +0800
From: Baochen Qiang <baochen.qiang@....qualcomm.com>
To: "Yu Zhang(Yuriy)" <yu.zhang@....qualcomm.com>, jjohnson@...nel.org
Cc: linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org,
        ath11k@...ts.infradead.org,
        Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@....qualcomm.com>
Subject: Re: [PATCH ath-next v2 6/6] wifi: ath11k: Register handler for CFR
 capture event



On 11/5/2025 12:26 AM, Yu Zhang(Yuriy) wrote:

> +static void ath11k_cfr_fill_hdr_info(struct ath11k *ar,
> +				     struct ath11k_csi_cfr_header *header,
> +				     struct ath11k_cfr_peer_tx_param *params)
> +{
> +	header->cfr_metadata_version = ATH11K_CFR_META_VERSION_4;
> +	header->cfr_data_version = ATH11K_CFR_DATA_VERSION_1;
> +	header->cfr_metadata_len = sizeof(struct cfr_metadata);
> +	header->chip_type = ar->ab->hw_rev;
> +	header->meta_data.status = FIELD_GET(WMI_CFR_PEER_CAPTURE_STATUS,
> +					     params->status);
> +	header->meta_data.capture_bw = params->bandwidth;
> +	header->meta_data.phy_mode = params->phy_mode;
> +	header->meta_data.prim20_chan = params->primary_20mhz_chan;
> +	header->meta_data.center_freq1 = params->band_center_freq1;
> +	header->meta_data.center_freq2 = params->band_center_freq2;
> +
> +	/* CFR capture is triggered by the ACK of a QoS Null frame:
> +	 * - 20 MHz: Legacy ACK
> +	 * - 40/80/160 MHz: DUP Legacy ACK
> +	 */

same comment as in path 5/6

> +	header->meta_data.capture_mode = params->bandwidth ?
> +		ATH11K_CFR_CAPTURE_DUP_LEGACY_ACK : ATH11K_CFR_CAPTURE_LEGACY_ACK;
> +	header->meta_data.capture_type = params->capture_method;
> +	header->meta_data.num_rx_chain = ar->num_rx_chains;
> +	header->meta_data.sts_count = params->spatial_streams;
> +	header->meta_data.timestamp = params->timestamp_us;
> +	ether_addr_copy(header->meta_data.peer_addr, params->peer_mac_addr);
> +	memcpy(header->meta_data.chain_rssi, params->chain_rssi,
> +	       sizeof(params->chain_rssi));
> +	memcpy(header->meta_data.chain_phase, params->chain_phase,
> +	       sizeof(params->chain_phase));
> +	memcpy(header->meta_data.agc_gain, params->agc_gain,
> +	       sizeof(params->agc_gain));
> +}
> +