recipes-wifi/linux-mt76/files/patches-3.x/0178-mtk-mt76-mt7996-add-per-STA-TX-MSDU-failed-and-retri.patch

From c9cc947b2922dde53c71ce871ac869039d740999 Mon Sep 17 00:00:00 2001
From: Benjamin Lin <benjamin-jw.lin@mediatek.com>
Date: Thu, 4 Jul 2024 14:00:16 +0800
Subject: [PATCH 178/199] mtk: mt76: mt7996: add per-STA TX MSDU failed and
 retried counts

Record per-STA TX MSDU failed and retried counts for debugging.

Signed-off-by: Benjamin Lin <benjamin-jw.lin@mediatek.com>
---
 mt76.h            |  2 ++
 mt76_connac_mcu.h |  3 ++
 mt7996/mac.c      | 39 ++++++++++++++++++++++++-
 mt7996/mcu.c      | 74 +++++++++++------------------------------------
 mt7996/mcu.h      |  8 +++++
 mt7996/mt7996.h   |  1 -
 6 files changed, 68 insertions(+), 59 deletions(-)

diff --git a/mt76.h b/mt76.h
index feb7bf16..fa4a3e70 100644
--- a/mt76.h
+++ b/mt76.h
@@ -360,6 +360,8 @@ struct mt76_sta_stats {
 	u64 tx_bytes;
 	/* WED TX */
 	u32 tx_packets;		/* unit: MSDU */
+	u32 tx_packets_retried;
+	u32 tx_packets_failed;
 	u32 tx_mpdus;
 	u32 tx_retries;
 	u32 tx_failed;
diff --git a/mt76_connac_mcu.h b/mt76_connac_mcu.h
index c1becf7e..545de4ae 100644
--- a/mt76_connac_mcu.h
+++ b/mt76_connac_mcu.h
@@ -1402,6 +1402,8 @@ enum {
 	UNI_OFFLOAD_OFFLOAD_BMC_RPY_DETECT,
 };
 
+#define PER_STA_INFO_MAX_NUM	90
+
 enum UNI_PER_STA_INFO_TAG {
 	UNI_PER_STA_RSSI,
 	UNI_PER_STA_CONTENTION_RX_RATE,
@@ -1411,6 +1413,7 @@ enum UNI_PER_STA_INFO_TAG {
 	UNI_PER_STA_TX_CNT,
 	UNI_PER_STA_TID_SN_GET,
 	UNI_PER_STA_TID_SN_SET,
+	UNI_PER_STA_PKT_CNT,
 	UNI_PER_STA_MAX_NUM
 };
 
diff --git a/mt7996/mac.c b/mt7996/mac.c
index a8985a3b..fae24cad 100644
--- a/mt7996/mac.c
+++ b/mt7996/mac.c
@@ -2431,6 +2431,43 @@ void mt7996_mac_sta_rc_work(struct work_struct *work)
 	rcu_read_unlock();
 }
 
+static int mt7996_mac_sta_poll(struct mt76_dev *dev)
+{
+	u16 sta_list[PER_STA_INFO_MAX_NUM];
+	struct mt7996_link_sta *mlink;
+	int i, ret;
+
+	spin_lock_bh(&dev->sta_poll_lock);
+	for (i = 0; i < PER_STA_INFO_MAX_NUM; ++i) {
+		if (list_empty(&dev->sta_poll_list))
+			break;
+
+		mlink = list_first_entry(&dev->sta_poll_list,
+					 struct mt7996_link_sta,
+					 wcid.poll_list);
+		list_del_init(&mlink->wcid.poll_list);
+		sta_list[i] = mlink->wcid.idx;
+	}
+	spin_unlock_bh(&dev->sta_poll_lock);
+
+	if (i == 0)
+		return 0;
+
+	ret = mt7996_mcu_get_per_sta_info(dev, UNI_PER_STA_RSSI, i, sta_list);
+	if (ret)
+		dev_err(dev->dev, "Failed to update RSSI of polled STAs.\n");
+
+	ret = mt7996_mcu_get_per_sta_info(dev, UNI_PER_STA_SNR, i, sta_list);
+	if (ret)
+		dev_err(dev->dev, "Failed to update SNR of polled STAs.\n");
+
+	ret = mt7996_mcu_get_per_sta_info(dev, UNI_PER_STA_PKT_CNT, i, sta_list);
+	if (ret)
+		dev_err(dev->dev, "Failed to update MSDU counts of polled STAs.\n");
+
+	return ret;
+}
+
 void mt7996_mac_work(struct work_struct *work)
 {
 	struct mt76_phy *mphy = (struct mt76_phy *)container_of(work, struct mt76_phy,
@@ -2453,7 +2490,7 @@ void mt7996_mac_work(struct work_struct *work)
 			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_signal_status(mdev);
+				mt7996_mac_sta_poll(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);
diff --git a/mt7996/mcu.c b/mt7996/mcu.c
index 00bc675e..857d2826 100644
--- a/mt7996/mcu.c
+++ b/mt7996/mcu.c
@@ -6017,7 +6017,6 @@ int mt7996_mcu_set_rro(struct mt7996_dev *dev, u16 tag, u16 val)
 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 mt7996_link_sta *mlink;
 	struct mt76_wcid *wcid;
@@ -6097,6 +6096,23 @@ int mt7996_mcu_get_per_sta_info(struct mt76_dev *dev, u16 tag,
 			}
 		}
 		break;
+	case UNI_PER_STA_PKT_CNT:
+		for (i = 0; i < sta_num; ++i) {
+			wlan_idx = le16_to_cpu(res->msdu_cnt[i].wlan_idx);
+			wcid = rcu_dereference(dev->wcid[wlan_idx]);
+			if (wcid) {
+				u32 retries = le32_to_cpu(res->msdu_cnt[i].tx_retries),
+				    drops = le32_to_cpu(res->msdu_cnt[i].tx_drops);
+
+				wcid->stats.tx_packets_retried += retries;
+				wcid->stats.tx_packets_failed += retries + drops;
+			} else {
+				ret = -EINVAL;
+				dev_err(dev->dev, "Failed to update MSDU 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);
@@ -6107,62 +6123,6 @@ out:
 	return ret;
 }
 
-int mt7996_mcu_get_signal_status(struct mt76_dev *dev)
-{
-	u16 sta_list[PER_STA_INFO_MAX_NUM];
-	LIST_HEAD(sta_poll_list);
-	struct mt7996_link_sta *mlink;
-	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;
-			}
-			mlink = list_first_entry(&sta_poll_list,
-						 struct mt7996_link_sta,
-						 wcid.poll_list);
-			list_del_init(&mlink->wcid.poll_list);
-			spin_unlock_bh(&dev->sta_poll_lock);
-
-			sta_list[i] = mlink->wcid.idx;
-		}
-
-		ret = mt7996_mcu_get_per_sta_info(dev, UNI_PER_STA_RSSI,
-						  i, sta_list);
-		if (ret)
-			break;
-
-		ret = mt7996_mcu_get_per_sta_info(dev, UNI_PER_STA_SNR,
-						  i, sta_list);
-		if (ret)
-			break;
-	}
-
-	if (ret) {
-		/* Add STAs, whose signal statuses have 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);
-	}
-
-	return ret;
-}
-
 int mt7996_mcu_get_all_sta_info(struct mt76_dev *dev, u16 tag)
 {
 	struct {
diff --git a/mt7996/mcu.h b/mt7996/mcu.h
index 01eb0ea1..739e357c 100644
--- a/mt7996/mcu.h
+++ b/mt7996/mcu.h
@@ -211,6 +211,13 @@ struct per_sta_snr {
 	s8 val[IEEE80211_MAX_CHAINS];
 } __packed;
 
+struct per_sta_msdu_cnt {
+	__le16 wlan_idx;
+	u8 __rsv[2];
+	__le32 tx_drops;
+	__le32 tx_retries;
+} __packed;
+
 struct mt7996_mcu_per_sta_info_event {
 	u8 __rsv[4];
 
@@ -220,6 +227,7 @@ struct mt7996_mcu_per_sta_info_event {
 	union {
 		struct per_sta_rssi rssi[0];
 		struct per_sta_snr snr[0];
+		struct per_sta_msdu_cnt msdu_cnt[0];
 	};
 } __packed;
 
diff --git a/mt7996/mt7996.h b/mt7996/mt7996.h
index 74c32827..8b00b05b 100644
--- a/mt7996/mt7996.h
+++ b/mt7996/mt7996.h
@@ -1134,7 +1134,6 @@ 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_per_sta_info(struct mt76_dev *dev, u16 tag,
 	                        u16 sta_num, u16 *sta_list);
-int mt7996_mcu_get_signal_status(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);
-- 
2.18.0