[PATCH v2] wifi: ath12k: report station mode per-chain signal strength
Lingbo Kong
quic_lingbok at quicinc.com
Wed Feb 26 03:34:03 PST 2025
On 2025/2/10 13:40, Lingbo Kong wrote:
> Currently, command “iw wlan0 station dump” does not show per-chain signal
> strength.
>
> This is because ath12k does not handle the num_per_chain_rssi and
> rssi_avg_beacon reported by firmware to ath12k.
>
> To address this, update ath12k to send WMI_REQUEST_STATS_CMDID with the
> flag WMI_REQUEST_RSSI_PER_CHAIN_STAT to the firmware. Then, add logic to
> handle num_per_chain_rssi and rssi_avg_beacon in the
> ath12k_wmi_tlv_fw_stats_parse(), and assign the resulting per-chain signal
> strength to the chain_signal of struct station_info.
>
> After that, "iw dev xxx station dump" shows the correct per-chain signal
> strength.
> Such as:
>
> Station AA:BB:CC:DD:EE:FF (on wlan0)
> inactive time: 212 ms
> rx bytes: 10398
> rx packets: 64
> tx bytes: 4362
> tx packets: 33
> tx retries: 49
> tx failed: 0
> beacon loss: 0
> beacon rx: 14
> rx drop misc: 16
> signal: -45 [-51, -46] dBm
> beacon signal avg: -44 dBm
>
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4
>
> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219751
> Signed-off-by: Lingbo Kong <quic_lingbok at quicinc.com>
> ---
> v2:
> 1.add break to avoid warning
>
> drivers/net/wireless/ath/ath12k/core.h | 5 ++
> drivers/net/wireless/ath/ath12k/mac.c | 39 ++++++++++--
> drivers/net/wireless/ath/ath12k/mac.h | 2 +
> drivers/net/wireless/ath/ath12k/wmi.c | 82 ++++++++++++++++++++++++++
> drivers/net/wireless/ath/ath12k/wmi.h | 18 +++++-
> 5 files changed, 139 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h
> index 57e71ccbbb67..967e3cad3bca 100644
> --- a/drivers/net/wireless/ath/ath12k/core.h
> +++ b/drivers/net/wireless/ath/ath12k/core.h
> @@ -508,6 +508,7 @@ struct ath12k_link_sta {
> u32 bw_prev;
hi jeff,
do you have any updates on this patch?🙂
/lingbo
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