ath11k: report rssi of each chain to mac80211

index f8f8ac00be80..b9a65f045b9c 100644
@@ -410,6 +410,7 @@ struct ath11k_sta {
 	u64 rx_duration;
 	u64 tx_duration;
 	u8 rssi_comb;
+	s8 chain_signal[IEEE80211_MAX_CHAINS];
 	struct ath11k_htt_tx_stats *tx_stats;
 	struct ath11k_rx_peer_stats *rx_stats;
 

@@ -438,6 +439,12 @@ enum ath11k_state {
 /* Antenna noise floor */
 #define ATH11K_DEFAULT_NOISE_FLOOR -95
 
+/* signed value, 11111111h, it is full bit value, invalid */
+#define ATH11K_INVALID_RSSI_FULL -1
+
+/* signed value, 10000000h, it is empty value, invalid */
+#define ATH11K_INVALID_RSSI_EMPTY -128
+
 struct ath11k_ftm_event_obj {
 	u32 data_pos;
 	u32 expected_seq;

index deec5e504dd6..e5a0da54fa88 100644
@@ -126,6 +126,11 @@ void ath11k_debugfs_fw_stats_process(struct ath11k_base *ab, struct sk_buff *skb
 		goto complete;
 	}
 
+	if (stats.stats_id == WMI_REQUEST_RSSI_PER_CHAIN_STAT) {
+		ar->debug.fw_stats_done = true;
+		goto complete;
+	}
+
 	if (stats.stats_id == WMI_REQUEST_VDEV_STAT) {
 		if (list_empty(&stats.vdevs)) {
 			ath11k_warn(ab, "empty vdev stats");

@@ -229,6 +234,37 @@ static int ath11k_debugfs_fw_stats_request(struct ath11k *ar,
 	return 0;
 }
 
+int ath11k_debug_get_fw_stats(struct ath11k *ar, u32 pdev_id, u32 vdev_id, u32 stats_id)
+{
+	struct ath11k_base *ab = ar->ab;
+	struct stats_request_params req_param;
+	int ret;
+
+	mutex_lock(&ar->conf_mutex);
+
+	if (ar->state != ATH11K_STATE_ON) {
+		ret = -ENETDOWN;
+		goto err_unlock;
+	}
+
+	req_param.pdev_id = pdev_id;
+	req_param.vdev_id = vdev_id;
+	req_param.stats_id = stats_id;
+
+	ret = ath11k_debugfs_fw_stats_request(ar, &req_param);
+	if (ret)
+		ath11k_warn(ab, "failed to request fw stats: %d\n", ret);
+
+	ath11k_dbg(ab, ATH11K_DBG_WMI,
+		   "debug get fw stat pdev id %d vdev id %d stats id 0x%x\n",
+		   pdev_id, vdev_id, stats_id);
+
+err_unlock:
+	mutex_unlock(&ar->conf_mutex);
+
+	return ret;
+}
+
 static int ath11k_open_pdev_stats(struct inode *inode, struct file *file)
 {
 	struct ath11k *ar = inode->i_private;

index e5346af71f24..d51fb8c5cde5 100644
@@ -113,6 +113,7 @@ void ath11k_debugfs_unregister(struct ath11k *ar);
 void ath11k_debugfs_fw_stats_process(struct ath11k_base *ab, struct sk_buff *skb);
 
 void ath11k_debugfs_fw_stats_init(struct ath11k *ar);
+int ath11k_debug_get_fw_stats(struct ath11k *ar, u32 pdev_id, u32 vdev_id, u32 stats_id);
 
 static inline bool ath11k_debugfs_is_pktlog_lite_mode_enabled(struct ath11k *ar)
 {

@@ -212,6 +213,12 @@ static inline int ath11k_debugfs_rx_filter(struct ath11k *ar)
 	return 0;
 }
 
+static inline int ath11k_debug_get_fw_stats(struct ath11k *ar,
+					    u32 pdev_id, u32 vdev_id, u32 stats_id)
+{
+	return 0;
+}
+
 #endif /* CONFIG_MAC80211_DEBUGFS*/
 
 #endif /* _ATH11K_DEBUGFS_H_ */

index 5a6486d04e18..11dfafd011d0 100644
@@ -2696,6 +2696,7 @@ static void ath11k_dp_rx_update_peer_stats(struct ath11k_sta *arsta,
 {
 	struct ath11k_rx_peer_stats *rx_stats = arsta->rx_stats;
 	u32 num_msdu;
+	int i;
 
 	if (!rx_stats)
 		return;

@@ -2757,6 +2758,13 @@ static void ath11k_dp_rx_update_peer_stats(struct ath11k_sta *arsta,
 	rx_stats->ru_alloc_cnt[ppdu_info->ru_alloc] += num_msdu;
 
 	arsta->rssi_comb = ppdu_info->rssi_comb;
+
+	BUILD_BUG_ON(ARRAY_SIZE(arsta->chain_signal) >
+			     ARRAY_SIZE(ppdu_info->rssi_chain_pri20));
+
+	for (i = 0; i < ARRAY_SIZE(arsta->chain_signal); i++)
+		arsta->chain_signal[i] = ppdu_info->rssi_chain_pri20[i];
+
 	rx_stats->rx_duration += ppdu_info->rx_duration;
 	arsta->rx_duration = rx_stats->rx_duration;
 }

index 325055ca41ab..45c2f303891e 100644
@@ -1078,6 +1078,9 @@ ath11k_hal_rx_parse_mon_status_tlv(struct ath11k_base *ab,
 		break;
 	}
 	case HAL_PHYRX_RSSI_LEGACY: {
+		int i;
+		bool db2dbm = test_bit(WMI_TLV_SERVICE_HW_DB2DBM_CONVERSION_SUPPORT,
+				       ab->wmi_ab.svc_map);
 		struct hal_rx_phyrx_rssi_legacy_info *rssi =
 			(struct hal_rx_phyrx_rssi_legacy_info *)tlv_data;
 

@@ -1088,6 +1091,16 @@ ath11k_hal_rx_parse_mon_status_tlv(struct ath11k_base *ab,
 		ppdu_info->rssi_comb =
 			FIELD_GET(HAL_RX_PHYRX_RSSI_LEGACY_INFO_INFO1_RSSI_COMB,
 				  __le32_to_cpu(rssi->info0));
+
+		if (db2dbm) {
+			for (i = 0; i < ARRAY_SIZE(rssi->preamble); i++) {
+				u32 rssi2040 = __le32_to_cpu(rssi->preamble[i].rssi_2040);
+
+				ppdu_info->rssi_chain_pri20[i] =
+					FIELD_GET(HAL_RX_PHYRX_RSSI_PREAMBLE_PRI20,
+						  rssi2040);
+			}
+		}
 		break;
 	}
 	case HAL_RX_MPDU_START: {

index 0f1f04b812b9..46597b15fb33 100644
@@ -98,6 +98,7 @@ struct hal_rx_mon_ppdu_info {
 	u8 ldpc;
 	u8 beamformed;
 	u8 rssi_comb;
+	u8 rssi_chain_pri20[HAL_RX_MAX_NSS];
 	u8 tid;
 	u8 dcm;
 	u8 ru_alloc;

@@ -248,8 +249,17 @@ struct hal_rx_he_sig_b2_ofdma_info {
 
 #define HAL_RX_PHYRX_RSSI_LEGACY_INFO_INFO1_RSSI_COMB	GENMASK(15, 8)
 
+#define HAL_RX_PHYRX_RSSI_PREAMBLE_PRI20	GENMASK(7, 0)
+
+struct hal_rx_phyrx_chain_rssi {
+	__le32 rssi_2040;
+	__le32 rssi_80;
+} __packed;
+
 struct hal_rx_phyrx_rssi_legacy_info {
-	__le32 rsvd[35];
+	__le32 rsvd[3];
+	struct hal_rx_phyrx_chain_rssi pre_rssi[HAL_RX_MAX_NSS];
+	struct hal_rx_phyrx_chain_rssi preamble[HAL_RX_MAX_NSS];
 	__le32 info0;
 } __packed;
 

index 8714f971ad67..5b0d2547939b 100644
@@ -6952,12 +6952,42 @@ static int ath11k_mac_op_get_survey(struct ieee80211_hw *hw, int idx,
 	return ret;
 }
 
+static void ath11k_mac_put_chain_rssi(struct station_info *sinfo,
+				      struct ath11k_sta *arsta,
+				      char *pre,
+				      bool clear)
+{
+	struct ath11k *ar = arsta->arvif->ar;
+	int i;
+	s8 rssi;
+
+	for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
+		sinfo->chains &= ~BIT(i);
+		rssi = arsta->chain_signal[i];
+		if (clear)
+			arsta->chain_signal[i] = ATH11K_INVALID_RSSI_FULL;
+
+		ath11k_dbg(ar->ab, ATH11K_DBG_MAC,
+			   "mac sta statistics %s rssi[%d] %d\n", pre, i, rssi);
+
+		if (rssi != ATH11K_DEFAULT_NOISE_FLOOR &&
+		    rssi != ATH11K_INVALID_RSSI_FULL &&
+		    rssi != ATH11K_INVALID_RSSI_EMPTY &&
+		    rssi != 0) {
+			sinfo->chain_signal[i] = rssi;
+			sinfo->chains |= BIT(i);
+			sinfo->filled |= BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL);
+		}
+	}
+}
+
 static void ath11k_mac_op_sta_statistics(struct ieee80211_hw *hw,
 					 struct ieee80211_vif *vif,
 					 struct ieee80211_sta *sta,
 					 struct station_info *sinfo)
 {
 	struct ath11k_sta *arsta = (struct ath11k_sta *)sta->drv_priv;
+	struct ath11k *ar = arsta->arvif->ar;
 
 	sinfo->rx_duration = arsta->rx_duration;
 	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_DURATION);

@@ -6980,6 +7010,14 @@ static void ath11k_mac_op_sta_statistics(struct ieee80211_hw *hw,
 		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
 	}
 
+	ath11k_mac_put_chain_rssi(sinfo, arsta, "ppdu", false);
+
+	if (!(sinfo->filled & BIT_ULL(NL80211_STA_INFO_CHAIN_SIGNAL)) &&
+	    !ath11k_debug_get_fw_stats(ar, ar->pdev->pdev_id, 0,
+				       WMI_REQUEST_RSSI_PER_CHAIN_STAT)) {
+		ath11k_mac_put_chain_rssi(sinfo, arsta, "fw stats", true);
+	}
+
 	/* TODO: Use real NF instead of default one. */
 	sinfo->signal = arsta->rssi_comb + ATH11K_DEFAULT_NOISE_FLOOR;
 	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);

140 lines not on this page · raw message

index b6b0f1e473ab..0ca96baf3be5 100644
@@ -4547,6 +4547,20 @@ struct wmi_stats_event {
 	u32 num_peer_extd2_stats;
 } __packed;
 
+#define WMI_MAX_CHAINS 8
+
+struct wmi_rssi_stats {
+	u32 tlv_header;
+	u32 vdev_id;
+	u32 rssi_avg_beacon[WMI_MAX_CHAINS];
+	u32 rssi_avg_data[WMI_MAX_CHAINS];
+	struct wmi_mac_addr peer_macaddr;
+} __packed;
+
+struct wmi_per_chain_rssi_stats {
+	u32 num_per_chain_rssi_stats;
+} __packed;
+
 struct wmi_pdev_ctl_failsafe_chk_event {
 	u32 pdev_id;
 	u32 ctl_failsafe_status;