autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mt76/patches/2020-mtk-wifi-mt76-mt7996-get-airtime-and-RSSI-via-MCU-co.patch

From d71f046693ba8f6e80a0c349d9ef1b9e857a8c34 Mon Sep 17 00:00:00 2001
From: Benjamin Lin <benjamin-jw.lin@mediatek.com>
Date: Fri, 17 Nov 2023 18:08:06 +0800
Subject: [PATCH 2020/2032] mtk: wifi: mt76: mt7996: get airtime and RSSI via
 MCU commands

Direct access to WTBL for airtime and RSSI may cause synchronization issue with FW.
Moreover, frequent access to WTBL, whenever TX-Free-Done event is received, leads to heavy CPU overheads.
Therefore, indirect access to WTBL, through FW, with lower frequence is performed.

Signed-off-by: Yi-Chia Hsieh <yi-chia.hsieh@mediatek.com>
Signed-off-by: Benjamin Lin <benjamin-jw.lin@mediatek.com>
---
 mt76.h               |  20 +++++
 mt76_connac_mcu.h    |  14 +++-
 mt7996/debugfs.c     |  17 ++---
 mt7996/mac.c         | 145 ++++++-----------------------------
 mt7996/mcu.c         | 177 +++++++++++++++++++++++++++++++++++++++++--
 mt7996/mcu.h         |  32 +++++++-
 mt7996/mt7996.h      |  26 ++++++-
 mt7996/mtk_debugfs.c |  71 +++++++++++++++++
 mt7996/regs.h        |   2 +
 9 files changed, 361 insertions(+), 143 deletions(-)

diff --git a/mt76.h b/mt76.h
index fbf66407..8db61815 100644
--- a/mt76.h
+++ b/mt76.h
@@ -325,11 +325,15 @@ struct mt76_sta_stats {
 	u32 tx_packets;		/* unit: MSDU */
 	u32 tx_retries;
 	u32 tx_failed;
+	u32 tx_total_mpdu_cnt;
+	u32 tx_failed_mpdu_cnt;
+	u64 tx_airtime;
 	/* WED RX */
 	u64 rx_bytes;
 	u32 rx_packets;
 	u32 rx_errors;
 	u32 rx_drops;
+	u64 rx_airtime;
 };
 
 enum mt76_wcid_flags {
@@ -1328,6 +1332,22 @@ static inline int mt76_decr(int val, int size)
 
 u8 mt76_ac_to_hwq(u8 ac);
 
+static inline u8
+mt76_ac_to_tid(u8 ac)
+{
+	static const u8 ac_to_tid[] = {
+		[IEEE80211_AC_BE] = 0,
+		[IEEE80211_AC_BK] = 1,
+		[IEEE80211_AC_VI] = 4,
+		[IEEE80211_AC_VO] = 6
+	};
+
+	if (WARN_ON(ac >= IEEE80211_NUM_ACS))
+		return 0;
+
+	return ac_to_tid[ac];
+}
+
 static inline struct ieee80211_txq *
 mtxq_to_txq(struct mt76_txq *mtxq)
 {
diff --git a/mt76_connac_mcu.h b/mt76_connac_mcu.h
index 266ee711..4f4b7b4f 100644
--- a/mt76_connac_mcu.h
+++ b/mt76_connac_mcu.h
@@ -1368,11 +1368,23 @@ enum {
 	UNI_OFFLOAD_OFFLOAD_BMC_RPY_DETECT,
 };
 
+enum UNI_PER_STA_INFO_TAG {
+	UNI_PER_STA_RSSI,
+	UNI_PER_STA_CONTENTION_RX_RATE,
+	UNI_PER_STA_PER,
+	UNI_PER_STA_SNR,
+	UNI_PER_STA_TX_RATE,
+	UNI_PER_STA_TX_CNT,
+	UNI_PER_STA_TID_SN_GET,
+	UNI_PER_STA_TID_SN_SET,
+	UNI_PER_STA_MAX_NUM
+};
+
 enum UNI_ALL_STA_INFO_TAG {
 	UNI_ALL_STA_TXRX_RATE,
 	UNI_ALL_STA_TX_STAT,
 	UNI_ALL_STA_TXRX_ADM_STAT,
-	UNI_ALL_STA_TXRX_AIR_TIME,
+	UNI_ALL_STA_TXRX_AIRTIME,
 	UNI_ALL_STA_DATA_TX_RETRY_COUNT,
 	UNI_ALL_STA_GI_MODE,
 	UNI_ALL_STA_TXRX_MSDU_COUNT,
diff --git a/mt7996/debugfs.c b/mt7996/debugfs.c
index c4adee9a..5e9ab9ab 100644
--- a/mt7996/debugfs.c
+++ b/mt7996/debugfs.c
@@ -987,12 +987,11 @@ mt7996_airtime_read(struct seq_file *s, void *data)
 {
 	struct mt7996_dev *dev = dev_get_drvdata(s->private);
 	struct mt76_dev *mdev = &dev->mt76;
-	struct mt7996_vow_sta_ctrl *vow;
+	struct mt76_sta_stats *stats;
 	struct ieee80211_sta *sta;
 	struct mt7996_sta *msta;
 	struct mt76_wcid *wcid;
 	struct mt76_vif *vif;
-	u64 airtime;
 	u16 i;
 
 	seq_printf(s, "VoW Airtime Information:\n");
@@ -1004,16 +1003,16 @@ mt7996_airtime_read(struct seq_file *s, void *data)
 
 		msta = container_of(wcid, struct mt7996_sta, wcid);
 		sta = container_of((void *)msta, struct ieee80211_sta, drv_priv);
-		vow = &msta->vow;
 		vif = &msta->vif->mt76;
+		stats = &wcid->stats;
 
-		spin_lock_bh(&vow->lock);
-		airtime = vow->tx_airtime;
-		vow->tx_airtime = 0;
-		spin_unlock_bh(&vow->lock);
+		seq_printf(s, "%pM WCID: %hu BandIdx: %hhu OmacIdx: 0x%hhx\t"
+		              "TxAirtime: %llu\tRxAirtime: %llu\n",
+		              sta->addr, i, vif->band_idx, vif->omac_idx,
+		              stats->tx_airtime, stats->rx_airtime);
 
-		seq_printf(s, "%pM WCID: %hu BandIdx: %hhu OmacIdx: 0x%hhx\tTxAirtime: %llu\n",
-		           sta->addr, i, vif->band_idx, vif->omac_idx, airtime);
+		stats->tx_airtime = 0;
+		stats->rx_airtime = 0;
 	}
 	rcu_read_unlock();
 
diff --git a/mt7996/mac.c b/mt7996/mac.c
index bc335fd3..2e48ab8b 100644
--- a/mt7996/mac.c
+++ b/mt7996/mac.c
@@ -12,8 +12,6 @@
 #include "mcu.h"
 #include "vendor.h"
 
-#define to_rssi(field, rcpi)	((FIELD_GET(field, rcpi) - 220) / 2)
-
 static const struct mt7996_dfs_radar_spec etsi_radar_specs = {
 	.pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 },
 	.radar_pattern = {
@@ -93,110 +91,6 @@ u32 mt7996_mac_wtbl_lmac_addr(struct mt7996_dev *dev, u16 wcid, u8 dw)
 	return MT_WTBL_LMAC_OFFS(wcid, dw);
 }
 
-static void mt7996_mac_sta_poll(struct mt7996_dev *dev)
-{
-	static const u8 ac_to_tid[] = {
-		[IEEE80211_AC_BE] = 0,
-		[IEEE80211_AC_BK] = 1,
-		[IEEE80211_AC_VI] = 4,
-		[IEEE80211_AC_VO] = 6
-	};
-	struct ieee80211_sta *sta;
-	struct mt7996_sta *msta;
-	struct mt7996_vow_sta_ctrl *vow;
-	u32 tx_time[IEEE80211_NUM_ACS], rx_time[IEEE80211_NUM_ACS];
-	LIST_HEAD(sta_poll_list);
-	int i;
-
-	spin_lock_bh(&dev->mt76.sta_poll_lock);
-	list_splice_init(&dev->mt76.sta_poll_list, &sta_poll_list);
-	spin_unlock_bh(&dev->mt76.sta_poll_lock);
-
-	rcu_read_lock();
-
-	while (true) {
-		bool clear = false;
-		u32 addr, val;
-		u16 idx;
-		s8 rssi[4];
-
-		spin_lock_bh(&dev->mt76.sta_poll_lock);
-		if (list_empty(&sta_poll_list)) {
-			spin_unlock_bh(&dev->mt76.sta_poll_lock);
-			break;
-		}
-		msta = list_first_entry(&sta_poll_list,
-					struct mt7996_sta, wcid.poll_list);
-		list_del_init(&msta->wcid.poll_list);
-		spin_unlock_bh(&dev->mt76.sta_poll_lock);
-
-		idx = msta->wcid.idx;
-
-		/* refresh peer's airtime reporting */
-		addr = mt7996_mac_wtbl_lmac_addr(dev, idx, 20);
-
-		for (i = 0; i < IEEE80211_NUM_ACS; i++) {
-			u32 tx_last = msta->airtime_ac[i];
-			u32 rx_last = msta->airtime_ac[i + 4];
-
-			msta->airtime_ac[i] = mt76_rr(dev, addr);
-			msta->airtime_ac[i + 4] = mt76_rr(dev, addr + 4);
-
-			tx_time[i] = msta->airtime_ac[i] - tx_last;
-			rx_time[i] = msta->airtime_ac[i + 4] - rx_last;
-
-			if ((tx_last | rx_last) & BIT(30))
-				clear = true;
-
-			addr += 8;
-		}
-
-		if (clear) {
-			mt7996_mac_wtbl_update(dev, idx,
-					       MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
-			memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac));
-		}
-
-		if (!msta->wcid.sta)
-			continue;
-
-		sta = container_of((void *)msta, struct ieee80211_sta,
-				   drv_priv);
-		vow = &msta->vow;
-		for (i = 0; i < IEEE80211_NUM_ACS; i++) {
-			u8 q = mt76_connac_lmac_mapping(i);
-			u32 tx_cur = tx_time[q];
-			u32 rx_cur = rx_time[q];
-			u8 tid = ac_to_tid[i];
-
-			if (!tx_cur && !rx_cur)
-				continue;
-
-			ieee80211_sta_register_airtime(sta, tid, tx_cur, rx_cur);
-
-			spin_lock_bh(&vow->lock);
-			vow->tx_airtime += tx_cur;
-			spin_unlock_bh(&vow->lock);
-		}
-
-		/* get signal strength of resp frames (CTS/BA/ACK) */
-		addr = mt7996_mac_wtbl_lmac_addr(dev, idx, 34);
-		val = mt76_rr(dev, addr);
-
-		rssi[0] = to_rssi(GENMASK(7, 0), val);
-		rssi[1] = to_rssi(GENMASK(15, 8), val);
-		rssi[2] = to_rssi(GENMASK(23, 16), val);
-		rssi[3] = to_rssi(GENMASK(31, 14), val);
-
-		msta->ack_signal =
-			mt76_rx_signal(msta->vif->phy->mt76->antenna_mask, rssi);
-
-		ewma_avg_signal_add(&msta->avg_ack_signal, -msta->ack_signal);
-	}
-
-	rcu_read_unlock();
-}
-
 void mt7996_mac_enable_rtscts(struct mt7996_dev *dev,
 			      struct ieee80211_vif *vif, bool enable)
 {
@@ -1206,8 +1100,6 @@ mt7996_mac_tx_free(struct mt7996_dev *dev, void *data, int len)
 		}
 	}
 
-	mt7996_mac_sta_poll(dev);
-
 	if (wake)
 		mt76_set_tx_blocked(&dev->mt76, false);
 
@@ -2370,31 +2262,42 @@ void mt7996_mac_sta_rc_work(struct work_struct *work)
 
 void mt7996_mac_work(struct work_struct *work)
 {
-	struct mt7996_phy *phy;
-	struct mt76_phy *mphy;
-
-	mphy = (struct mt76_phy *)container_of(work, struct mt76_phy,
-					       mac_work.work);
-	phy = mphy->priv;
+	struct mt76_phy *mphy = (struct mt76_phy *)container_of(work, struct mt76_phy,
+	                                                        mac_work.work);
+	struct mt7996_phy *phy = mphy->priv;
+	struct mt76_dev *mdev = mphy->dev;
 
-	mutex_lock(&mphy->dev->mutex);
+	mutex_lock(&mdev->mutex);
 
 	mt76_update_survey(mphy);
 	if (++mphy->mac_work_count == 5) {
+		int i;
+
 		mphy->mac_work_count = 0;
 
 		mt7996_mac_update_stats(phy);
 
-		mt7996_mcu_get_all_sta_info(phy, UNI_ALL_STA_TXRX_RATE);
-		if (mtk_wed_device_active(&phy->dev->mt76.mmio.wed)) {
-			mt7996_mcu_get_all_sta_info(phy, UNI_ALL_STA_TXRX_ADM_STAT);
-			mt7996_mcu_get_all_sta_info(phy, UNI_ALL_STA_TXRX_MSDU_COUNT);
+		/* Update DEV-wise information only in
+		 * the MAC work of the first band running.
+		 */
+		for (i = MT_BAND0; i <= mphy->band_idx; ++i) {
+			if (i == mphy->band_idx) {
+				mt7996_mcu_get_all_sta_info(mdev, UNI_ALL_STA_TXRX_RATE);
+				mt7996_mcu_get_all_sta_info(mdev, UNI_ALL_STA_TXRX_AIRTIME);
+				mt7996_mcu_get_rssi(mdev);
+				if (mtk_wed_device_active(&mdev->mmio.wed)) {
+					mt7996_mcu_get_all_sta_info(mdev, UNI_ALL_STA_TXRX_ADM_STAT);
+					mt7996_mcu_get_all_sta_info(mdev, UNI_ALL_STA_TXRX_MSDU_COUNT);
+				}
+			} else if (mt7996_band_valid(phy->dev, i) &&
+			           test_bit(MT76_STATE_RUNNING, &mdev->phys[i]->state))
+				break;
 		}
 	}
 
-	mutex_unlock(&mphy->dev->mutex);
+	mutex_unlock(&mdev->mutex);
 
-	mt76_tx_status_check(mphy->dev, false);
+	mt76_tx_status_check(mdev, false);
 
 	ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
 				     MT7996_WATCHDOG_TIME);
diff --git a/mt7996/mcu.c b/mt7996/mcu.c
index 3a816713..35a44fee 100644
--- a/mt7996/mcu.c
+++ b/mt7996/mcu.c
@@ -560,7 +560,8 @@ mt7996_mcu_rx_all_sta_info_event(struct mt7996_dev *dev, struct sk_buff *skb)
 		u16 wlan_idx;
 		struct mt76_wcid *wcid;
 		struct mt76_phy *mphy;
-		u32 tx_bytes, rx_bytes, tx_packets, rx_packets;
+		struct ieee80211_sta *sta;
+		u32 tx_bytes, rx_bytes, tx_airtime, rx_airtime, tx_packets, rx_packets;
 
 		switch (le16_to_cpu(res->tag)) {
 		case UNI_ALL_STA_TXRX_RATE:
@@ -581,7 +582,7 @@ mt7996_mcu_rx_all_sta_info_event(struct mt7996_dev *dev, struct sk_buff *skb)
 				break;
 
 			mphy = mt76_dev_phy(&dev->mt76, wcid->phy_idx);
-			for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
+			for (ac = IEEE80211_AC_VO; ac < IEEE80211_NUM_ACS; ac++) {
 				tx_bytes = le32_to_cpu(res->adm_stat[i].tx_bytes[ac]);
 				rx_bytes = le32_to_cpu(res->adm_stat[i].rx_bytes[ac]);
 
@@ -613,6 +614,24 @@ mt7996_mcu_rx_all_sta_info_event(struct mt7996_dev *dev, struct sk_buff *skb)
 			__mt7996_stat_to_netdev(mphy, wcid, 0, 0,
 						tx_packets, rx_packets);
 			break;
+		case UNI_ALL_STA_TXRX_AIRTIME:
+			wlan_idx = le16_to_cpu(res->airtime[i].wlan_idx);
+			wcid = rcu_dereference(dev->mt76.wcid[wlan_idx]);
+			sta = wcid_to_sta(wcid);
+			if (!sta)
+				continue;
+
+			for (ac = IEEE80211_AC_VO; ac < IEEE80211_NUM_ACS; ++ac) {
+				u8 lmac_ac = mt76_connac_lmac_mapping(ac);
+				tx_airtime = le32_to_cpu(res->airtime[i].tx[lmac_ac]);
+				rx_airtime = le32_to_cpu(res->airtime[i].rx[lmac_ac]);
+
+				wcid->stats.tx_airtime += tx_airtime;
+				wcid->stats.rx_airtime += rx_airtime;
+				ieee80211_sta_register_airtime(sta, mt76_ac_to_tid(ac),
+				                               tx_airtime, rx_airtime);
+			}
+			break;
 		default:
 			break;
 		}
@@ -2239,8 +2258,6 @@ mt7996_mcu_sta_init_vow(struct mt7996_phy *phy, struct mt7996_sta *msta)
 	vow->drr_quantum[IEEE80211_AC_VI] = VOW_DRR_QUANTUM_IDX1;
 	vow->drr_quantum[IEEE80211_AC_BE] = VOW_DRR_QUANTUM_IDX2;
 	vow->drr_quantum[IEEE80211_AC_BK] = VOW_DRR_QUANTUM_IDX2;
-	vow->tx_airtime = 0;
-	spin_lock_init(&vow->lock);
 
 	ret = mt7996_mcu_set_vow_drr_ctrl(phy, msta, VOW_DRR_CTRL_STA_BSS_GROUP);
 	if (ret)
@@ -4846,9 +4863,155 @@ int mt7996_mcu_set_rro(struct mt7996_dev *dev, u16 tag, u16 val)
 				 sizeof(req), true);
 }
 
-int mt7996_mcu_get_all_sta_info(struct mt7996_phy *phy, u16 tag)
+int mt7996_mcu_get_per_sta_info(struct mt76_dev *dev, u16 tag,
+	                        u16 sta_num, u16 *sta_list)
+{
+#define PER_STA_INFO_MAX_NUM	90
+	struct mt7996_mcu_per_sta_info_event *res;
+	struct mt76_wcid *wcid;
+	struct sk_buff *skb;
+	u16 wlan_idx;
+	int i, ret;
+	struct {
+		u8 __rsv1;
+		u8 unsolicit;
+		u8 __rsv2[2];
+
+		__le16 tag;
+		__le16 len;
+		__le16 sta_num;
+		u8 __rsv3[2];
+		__le16 sta_list[PER_STA_INFO_MAX_NUM];
+	} __packed req = {
+		.unsolicit = 0,
+		.tag = cpu_to_le16(tag),
+		.len = cpu_to_le16(sizeof(req) - 4),
+		.sta_num = cpu_to_le16(sta_num)
+	};
+
+	if (sta_num > PER_STA_INFO_MAX_NUM)
+		return -EINVAL;
+
+	for (i = 0; i < sta_num; ++i)
+		req.sta_list[i] = cpu_to_le16(sta_list[i]);
+
+	ret = mt76_mcu_send_and_get_msg(dev, MCU_WM_UNI_CMD(PER_STA_INFO),
+	                                &req, sizeof(req), true, &skb);
+	if (ret)
+		return ret;
+
+	res = (struct mt7996_mcu_per_sta_info_event *)skb->data;
+	if (le16_to_cpu(res->tag) != tag) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	rcu_read_lock();
+	switch (tag) {
+	case UNI_PER_STA_RSSI:
+		for (i = 0; i < sta_num; ++i) {
+			struct mt7996_sta *msta;
+			struct mt76_phy *phy;
+			s8 rssi[4];
+			u8 *rcpi;
+
+			wlan_idx = le16_to_cpu(res->rssi[i].wlan_idx);
+			wcid = rcu_dereference(dev->wcid[wlan_idx]);
+			if (wcid) {
+				rcpi = res->rssi[i].rcpi;
+				rssi[0] = to_rssi(MT_PRXV_RCPI0, rcpi[0]);
+				rssi[1] = to_rssi(MT_PRXV_RCPI0, rcpi[1]);
+				rssi[2] = to_rssi(MT_PRXV_RCPI0, rcpi[2]);
+				rssi[3] = to_rssi(MT_PRXV_RCPI0, rcpi[3]);
+
+				msta = container_of(wcid, struct mt7996_sta, wcid);
+				phy = msta->vif->phy->mt76;
+				msta->ack_signal = mt76_rx_signal(phy->antenna_mask, rssi);
+				ewma_avg_signal_add(&msta->avg_ack_signal, -msta->ack_signal);
+			} else {
+				ret = -EINVAL;
+				dev_err(dev->dev, "Failed to update RSSI for "
+				                  "invalid WCID: %hu\n", wlan_idx);
+			}
+		}
+		break;
+	case UNI_PER_STA_TX_CNT:
+		for (i = 0; i < sta_num; ++i) {
+			wlan_idx = le16_to_cpu(res->tx_cnt[i].wlan_idx);
+			wcid = rcu_dereference(dev->wcid[wlan_idx]);
+			if (wcid) {
+				wcid->stats.tx_total_mpdu_cnt +=
+				            le32_to_cpu(res->tx_cnt[i].total);
+				wcid->stats.tx_failed_mpdu_cnt +=
+				            le32_to_cpu(res->tx_cnt[i].failed);
+			} else {
+				ret = -EINVAL;
+				dev_err(dev->dev, "Failed to update TX MPDU counts "
+				                  "for invalid WCID: %hu\n", wlan_idx);
+			}
+		}
+		break;
+	default:
+		ret = -EINVAL;
+		dev_err(dev->dev, "Unknown UNI_PER_STA_INFO_TAG: %d\n", tag);
+	}
+	rcu_read_unlock();
+out:
+	dev_kfree_skb(skb);
+	return ret;
+}
+
+int mt7996_mcu_get_rssi(struct mt76_dev *dev)
+{
+	u16 sta_list[PER_STA_INFO_MAX_NUM];
+	LIST_HEAD(sta_poll_list);
+	struct mt7996_sta *msta;
+	int i, ret;
+	bool empty = false;
+
+	spin_lock_bh(&dev->sta_poll_lock);
+	list_splice_init(&dev->sta_poll_list, &sta_poll_list);
+	spin_unlock_bh(&dev->sta_poll_lock);
+
+	while (!empty) {
+		for (i = 0; i < PER_STA_INFO_MAX_NUM; ++i) {
+			spin_lock_bh(&dev->sta_poll_lock);
+			if (list_empty(&sta_poll_list)) {
+				spin_unlock_bh(&dev->sta_poll_lock);
+
+				if (i == 0)
+					return 0;
+
+				empty = true;
+				break;
+			}
+			msta = list_first_entry(&sta_poll_list,
+			                        struct mt7996_sta,
+			                        wcid.poll_list);
+			list_del_init(&msta->wcid.poll_list);
+			spin_unlock_bh(&dev->sta_poll_lock);
+
+			sta_list[i] = msta->wcid.idx;
+		}
+
+		ret = mt7996_mcu_get_per_sta_info(dev, UNI_PER_STA_RSSI,
+		                                  i, sta_list);
+		if (ret) {
+			/* Add STAs, whose RSSI has not been updated,
+			 * back to polling list.
+			 */
+			spin_lock_bh(&dev->sta_poll_lock);
+			list_splice(&sta_poll_list, &dev->sta_poll_list);
+			spin_unlock_bh(&dev->sta_poll_lock);
+			break;
+		}
+	}
+
+	return ret;
+}
+
+int mt7996_mcu_get_all_sta_info(struct mt76_dev *dev, u16 tag)
 {
-	struct mt7996_dev *dev = phy->dev;
 	struct {
 		u8 _rsv[4];
 
@@ -4859,7 +5022,7 @@ int mt7996_mcu_get_all_sta_info(struct mt7996_phy *phy, u16 tag)
 		.len = cpu_to_le16(sizeof(req) - 4),
 	};
 
-	return mt76_mcu_send_msg(&dev->mt76, MCU_WM_UNI_CMD(ALL_STA_INFO),
+	return mt76_mcu_send_msg(dev, MCU_WM_UNI_CMD(ALL_STA_INFO),
 				 &req, sizeof(req), false);
 }
 
diff --git a/mt7996/mcu.h b/mt7996/mcu.h
index a05dd6a5..cd327451 100644
--- a/mt7996/mcu.h
+++ b/mt7996/mcu.h
@@ -199,6 +199,31 @@ struct mt7996_mcu_mib {
 	__le64 data;
 } __packed;
 
+struct per_sta_rssi {
+	__le16 wlan_idx;
+	u8 __rsv[2];
+	u8 rcpi[4];
+} __packed;
+
+struct per_sta_tx_cnt {
+	__le16 wlan_idx;
+	u8 __rsv[2];
+	__le32 total;
+	__le32 failed;
+} __packed;
+
+struct mt7996_mcu_per_sta_info_event {
+	u8 __rsv[4];
+
+	__le16 tag;
+	__le16 len;
+
+	union {
+		struct per_sta_rssi rssi[0];
+		struct per_sta_tx_cnt tx_cnt[0];
+	};
+} __packed;
+
 struct all_sta_trx_rate {
 	__le16 wlan_idx;
 	u8 __rsv1[2];
@@ -237,13 +262,18 @@ struct mt7996_mcu_all_sta_info_event {
 			__le32 tx_bytes[IEEE80211_NUM_ACS];
 			__le32 rx_bytes[IEEE80211_NUM_ACS];
 		} adm_stat[0] __packed;
-
 		struct {
 			__le16 wlan_idx;
 			u8 rsv[2];
 			__le32 tx_msdu_cnt;
 			__le32 rx_msdu_cnt;
 		} msdu_cnt[0] __packed;
+		struct {
+			__le16 wlan_idx;
+			u8 __rsv[2];
+			__le32 tx[IEEE80211_NUM_ACS];
+			__le32 rx[IEEE80211_NUM_ACS];
+		} airtime[0] __packed;
 	} __packed;
 } __packed;
 
diff --git a/mt7996/mt7996.h b/mt7996/mt7996.h
index d1d35e56..c5b83648 100644
--- a/mt7996/mt7996.h
+++ b/mt7996/mt7996.h
@@ -126,6 +126,8 @@
 #define MT7996_RRO_MSDU_PG_CR_CNT 8
 #define MT7996_RRO_MSDU_PG_SIZE_PER_CR 0x10000
 
+#define to_rssi(field, rcpi)	((FIELD_GET(field, rcpi) - 220) / 2)
+
 struct mt7996_vif;
 struct mt7996_sta;
 struct mt7996_dfs_pulse;
@@ -298,8 +300,6 @@ struct mt7996_vow_sta_ctrl {
 	bool paused;
 	u8 bss_grp_idx;
 	u8 drr_quantum[IEEE80211_NUM_ACS];
-	u64 tx_airtime;
-	spinlock_t lock;
 };
 
 struct mt7996_sta {
@@ -308,7 +308,6 @@ struct mt7996_sta {
 	struct mt7996_vif *vif;
 
 	struct list_head rc_list;
-	u32 airtime_ac[8];
 
 	int ack_signal;
 	struct ewma_avg_signal avg_ack_signal;
@@ -405,6 +404,21 @@ struct mt7996_air_monitor_ctrl {
 };
 #endif
 
+struct mt7996_rro_ba_session {
+	u32 ack_sn         :12;
+	u32 win_sz         :3;
+	u32 bn             :1;
+	u32 last_in_sn     :12;
+	u32 bc             :1;
+	u32 bd             :1;
+	u32 sat            :1;
+	u32 cn             :1;
+	u32 within_cnt     :12;
+	u32 to_sel         :3;
+	u32 rsv            :1;
+	u32 last_in_rxtime :12;
+};
+
 struct mt7996_phy {
 	struct mt76_phy *mt76;
 	struct mt7996_dev *dev;
@@ -594,6 +608,7 @@ struct mt7996_dev {
 		u32 fw_dbg_module;
 		u8 fw_dbg_lv;
 		u32 bcn_total_cnt[__MT_MAX_BAND];
+		u32 sid;
 	} dbg;
 	const struct mt7996_dbg_reg_desc *dbg_reg;
 #endif
@@ -819,7 +834,10 @@ int mt7996_mcu_fw_dbg_ctrl(struct mt7996_dev *dev, u32 module, u8 level);
 int mt7996_mcu_trigger_assert(struct mt7996_dev *dev);
 void mt7996_mcu_rx_event(struct mt7996_dev *dev, struct sk_buff *skb);
 void mt7996_mcu_exit(struct mt7996_dev *dev);
-int mt7996_mcu_get_all_sta_info(struct mt7996_phy *phy, u16 tag);
+int mt7996_mcu_get_per_sta_info(struct mt76_dev *dev, u16 tag,
+	                        u16 sta_num, u16 *sta_list);
+int mt7996_mcu_get_rssi(struct mt76_dev *dev);
+int mt7996_mcu_get_all_sta_info(struct mt76_dev *dev, u16 tag);
 int mt7996_mcu_wed_rro_reset_sessions(struct mt7996_dev *dev, u16 id);
 int mt7996_mcu_set_tx_power_ctrl(struct mt7996_phy *phy, u8 power_ctrl_id, u8 data);
 int mt7996_mcu_get_tx_power_info(struct mt7996_phy *phy, u8 category, void *event);
diff --git a/mt7996/mtk_debugfs.c b/mt7996/mtk_debugfs.c
index 42370205..1c1f2c9c 100644
--- a/mt7996/mtk_debugfs.c
+++ b/mt7996/mtk_debugfs.c
@@ -3047,6 +3047,69 @@ mt7996_vow_drr_dbg(void *data, u64 val)
 DEFINE_DEBUGFS_ATTRIBUTE(fops_vow_drr_dbg, NULL,
 			 mt7996_vow_drr_dbg, "%lld\n");
 
+static int
+mt7996_rro_session_read(struct seq_file *s, void *data)
+{
+	struct mt7996_dev *dev = dev_get_drvdata(s->private);
+	struct mt7996_rro_ba_session *tbl;
+	u32 value[2];
+
+	mt76_wr(dev, MT_RRO_DBG_RD_CTRL, MT_RRO_DBG_RD_EXEC +
+		(dev->dbg.sid >> 1) + 0x200);
+
+	if (dev->dbg.sid & 0x1) {
+		value[0] = mt76_rr(dev, MT_RRO_DBG_RDAT_DW(2));
+		value[1] = mt76_rr(dev, MT_RRO_DBG_RDAT_DW(3));
+	} else {
+		value[0] = mt76_rr(dev, MT_RRO_DBG_RDAT_DW(0));
+		value[1] = mt76_rr(dev, MT_RRO_DBG_RDAT_DW(1));
+	}
+
+	tbl = (struct mt7996_rro_ba_session *)&value[0];
+
+	seq_printf(s, " seid %d:\nba session table DW0:%08x DW2:%08x\n",
+		   dev->dbg.sid, value[0], value[1]);
+
+	seq_printf(s, "ack_sn = 0x%x, last_in_sn = 0x%x, sat/bn/bc/bd/cn = %d/%d/%d/%d/%d\n",
+		   tbl->ack_sn, tbl->last_in_sn, tbl->sat, tbl->bn, tbl->bc, tbl->bd, tbl->cn);
+
+	seq_printf(s, "within_cnt = %d, to_sel = %d, last_in_rxtime = %d\n",
+		   tbl->within_cnt, tbl->to_sel, tbl->last_in_rxtime);
+
+	return 0;
+}
+
+static int
+mt7996_show_rro_mib(struct seq_file *s, void *data)
+{
+	struct mt7996_dev *dev = dev_get_drvdata(s->private);
+	u32 reg[12];
+
+	seq_printf(s, "RRO mib Info:\n");
+
+	reg[0] = mt76_rr(dev, WF_RRO_TOP_STATISTIC(0));
+	reg[1] = mt76_rr(dev, WF_RRO_TOP_STATISTIC(1));
+	reg[2] = mt76_rr(dev, WF_RRO_TOP_STATISTIC(2));
+	reg[3] = mt76_rr(dev, WF_RRO_TOP_STATISTIC(3));
+	reg[4] = mt76_rr(dev, WF_RRO_TOP_STATISTIC(4));
+	reg[5] = mt76_rr(dev, WF_RRO_TOP_STATISTIC(5));
+	reg[6] = mt76_rr(dev, WF_RRO_TOP_STATISTIC(6));
+	reg[7] = mt76_rr(dev, WF_RRO_TOP_STATISTIC(7));
+	reg[8] = mt76_rr(dev, WF_RRO_TOP_STATISTIC(8));
+	reg[9] = mt76_rr(dev, WF_RRO_TOP_STATISTIC(9));
+	reg[10] = mt76_rr(dev, WF_RRO_TOP_STATISTIC(10));
+	reg[11] = mt76_rr(dev, WF_RRO_TOP_STATISTIC(11));
+
+	seq_printf(s, "STEP_ONE/WITHIN/SURPASS = %x/%x/%x\n", reg[0], reg[3], reg[4]);
+	seq_printf(s, "REPEAT/OLDPKT/BAR = %x/%x/%x\n", reg[1], reg[2], reg[5]);
+	seq_printf(s, "SURPASS with big gap = %x\n", reg[6]);
+	seq_printf(s, "DISCONNECT/INVALID = %x/%x\n", reg[7], reg[8]);
+	seq_printf(s, "TO(Step one)/TO(flush all) = %x/%x\n", reg[9], reg[10]);
+	seq_printf(s, "buf ran out = %x\n", reg[11]);
+
+	return 0;
+}
+
 int mt7996_mtk_init_debugfs(struct mt7996_phy *phy, struct dentry *dir)
 {
 	struct mt7996_dev *dev = phy->dev;
@@ -3146,6 +3209,14 @@ int mt7996_mtk_init_debugfs(struct mt7996_phy *phy, struct dentry *dir)
 
 	debugfs_create_file("muru_prot_thr", 0200, dir, phy, &fops_muru_prot_thr);
 
+	if (dev->has_rro) {
+		debugfs_create_u32("rro_sid", 0600, dir, &dev->dbg.sid);
+		debugfs_create_devm_seqfile(dev->mt76.dev, "rro_sid_info", dir,
+					    mt7996_rro_session_read);
+		debugfs_create_devm_seqfile(dev->mt76.dev, "rro_mib", dir,
+					    mt7996_show_rro_mib);
+	}
+
 	return 0;
 }
 
diff --git a/mt7996/regs.h b/mt7996/regs.h
index a3b62339..476b23c3 100644
--- a/mt7996/regs.h
+++ b/mt7996/regs.h
@@ -122,6 +122,8 @@ enum offs_rev {
 #define MT_MCU_INT_EVENT_DMA_INIT		BIT(1)
 #define MT_MCU_INT_EVENT_RESET_DONE		BIT(3)
 
+#define WF_RRO_TOP_STATISTIC(_n)		MT_RRO_TOP(0x180 + _n * 0x4)
+
 /* PLE */
 #define MT_PLE_BASE				0x820c0000
 #define MT_PLE(ofs)				(MT_PLE_BASE + (ofs))
-- 
2.18.0