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Subject: Re: [PATCH] wifi: ath12k: enable
 IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS
 for WCN7850
From:   Kalle Valo <kvalo@kernel.org>
In-Reply-To: <20230913105507.17675-1-quic_wgong@quicinc.com>
References: <20230913105507.17675-1-quic_wgong@quicinc.com>
To:     Wen Gong <quic_wgong@quicinc.com>
Cc:     <ath12k@lists.infradead.org>, <linux-wireless@vger.kernel.org>,
        <quic_jjohnson@quicinc.com>, <quic_wgong@quicinc.com>
User-Agent: pwcli/0.1.1-git (https://github.com/kvalo/pwcli/) Python/3.11.2
Message-ID: <169591368967.3019228.17079892721310631838.kvalo@kernel.org>
Date:   Thu, 28 Sep 2023 15:08:11 +0000 (UTC)
Precedence: bulk

Wen Gong <quic_wgong@quicinc.com> wrote:

> Currently mac80211 will send 3 scan request for each scan of WCN7850, they
> are 2.4 GHz/5 GHz/6 GHz band scan. Firmware of WCN7850 will cache the RNR
> IE(Reduced Neighbor Report element) which exist in the beacon of 2.4 GHz/5
> GHz of the AP which is co-located with 6 GHz, and then use the cache to
> scan in 6 GHz band scan if the 6 GHz scan is in the same scan with the 2.4
> GHz/5 GHz band, this will helpful to search more AP of 6 GHz. Also it will
> decrease the time cost of scan because firmware will use dual-band scan
> for the 2.4 GHz/5 GHz, it means the 2.4 GHz and 5 GHz scans are doing
> simultaneously.
> 
> Set the flag IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS for WCN7850 since it
> supports 2.4 GHz/5 GHz/6 GHz in a single wiphy/ieee80211_hw.
> 
> This does not impact QCN9274, because it is not single_phy, so does not
> have 2.4 GHz/5 GHz/6 GHz in the same wiphy, then it does not match the
> condition and then IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS will not set for
> QCN9274.
> 
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
> 
> Signed-off-by: Wen Gong <quic_wgong@quicinc.com>
> Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>

Patch applied to ath-next branch of ath.git, thanks.

a1e09eb35476 wifi: ath12k: enable IEEE80211_HW_SINGLE_SCAN_ON_ALL_BANDS for WCN7850

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20230913105507.17675-1-quic_wgong@quicinc.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches