From cb53a6785ea5b0a14e7e5af4322bee3df266e949 Mon Sep 17 00:00:00 2001 From: Nicolas Escande Date: Sat, 1 Feb 2025 22:13:01 +0100 Subject: [PATCH] wifi: ath12k: add support of station average signal strength This adds support for reporting to the kernel the average rssi. This is done the same way as it was done in ath11k. A simple ewma (with the same parameters) is updated with each rssi update. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Signed-off-by: Nicolas Escande Reviewed-by: Aditya Kumar Singh Link: https://patch.msgid.link/20250201211301.357985-1-nico.escande@gmail.com Signed-off-by: Jeff Johnson --- drivers/net/wireless/ath/ath12k/core.h | 4 ++++ drivers/net/wireless/ath/ath12k/dp_mon.c | 2 ++ drivers/net/wireless/ath/ath12k/mac.c | 8 ++++++++ 3 files changed, 14 insertions(+) diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h index 57e71ccbbb674..3dcdedf9e9de1 100644 --- a/drivers/net/wireless/ath/ath12k/core.h +++ b/drivers/net/wireless/ath/ath12k/core.h @@ -15,6 +15,7 @@ #include #include #include +#include #include "qmi.h" #include "htc.h" #include "wmi.h" @@ -483,6 +484,8 @@ struct ath12k_wbm_tx_stats { u64 wbm_tx_comp_stats[HAL_WBM_REL_HTT_TX_COMP_STATUS_MAX]; }; +DECLARE_EWMA(avg_rssi, 10, 8) + struct ath12k_link_sta { struct ath12k_link_vif *arvif; struct ath12k_sta *ahsta; @@ -502,6 +505,7 @@ struct ath12k_link_sta { u64 rx_duration; u64 tx_duration; u8 rssi_comb; + struct ewma_avg_rssi avg_rssi; u8 link_id; struct ath12k_rx_peer_stats *rx_stats; struct ath12k_wbm_tx_stats *wbm_tx_stats; diff --git a/drivers/net/wireless/ath/ath12k/dp_mon.c b/drivers/net/wireless/ath/ath12k/dp_mon.c index 4e9a60181c067..d529229f2d0fa 100644 --- a/drivers/net/wireless/ath/ath12k/dp_mon.c +++ b/drivers/net/wireless/ath/ath12k/dp_mon.c @@ -2002,6 +2002,7 @@ static void ath12k_dp_mon_rx_update_peer_su_stats(struct ath12k *ar, return; arsta->rssi_comb = ppdu_info->rssi_comb; + ewma_avg_rssi_add(&arsta->avg_rssi, ppdu_info->rssi_comb); num_msdu = ppdu_info->tcp_msdu_count + ppdu_info->tcp_ack_msdu_count + ppdu_info->udp_msdu_count + ppdu_info->other_msdu_count; @@ -2174,6 +2175,7 @@ ath12k_dp_mon_rx_update_user_stats(struct ath12k *ar, return; arsta->rssi_comb = ppdu_info->rssi_comb; + ewma_avg_rssi_add(&arsta->avg_rssi, ppdu_info->rssi_comb); num_msdu = user_stats->tcp_msdu_count + user_stats->tcp_ack_msdu_count + user_stats->udp_msdu_count + user_stats->other_msdu_count; diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c index 16e6f2fae943d..fc5cfd860d4d6 100644 --- a/drivers/net/wireless/ath/ath12k/mac.c +++ b/drivers/net/wireless/ath/ath12k/mac.c @@ -5519,6 +5519,7 @@ static int ath12k_mac_station_add(struct ath12k *ar, } } + ewma_avg_rssi_init(&arsta->avg_rssi); return 0; free_peer: @@ -10197,6 +10198,13 @@ static void ath12k_mac_op_sta_statistics(struct ieee80211_hw *hw, sinfo->signal = db2dbm ? signal : signal + ATH12K_DEFAULT_NOISE_FLOOR; sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL); } + + sinfo->signal_avg = ewma_avg_rssi_read(&arsta->avg_rssi); + + if (!db2dbm) + sinfo->signal_avg += ATH12K_DEFAULT_NOISE_FLOOR; + + sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); } static int ath12k_mac_op_cancel_remain_on_channel(struct ieee80211_hw *hw, -- 2.50.1