Merge tag 'mt76-for-kvalo-2022-05-12' of https://github.com/nbd168/wireless

mt76 patches for 5.19

- tx locking improvements
- wireless ethernet dispatch support for flow offload
- non-standard VHT MCS10-11 support
- fixes
- runtime PM improvements
- mt7921 AP mode support
- mt7921 ipv6 NS offload support

1 files changed, 31 insertions, 17 deletions

diff --git a/drivers/net/wireless/mediatek/mt76/tx.c b/drivers/net/wireless/mediatek/mt76/tx.c
index b49ef6619829..1d08d99e298c 100644
--- a/drivers/net/wireless/mediatek/mt76/tx.c
+++ b/drivers/net/wireless/mediatek/mt76/tx.c
@@ -119,7 +119,7 @@ mt76_tx_status_skb_add(struct mt76_dev *dev, struct mt76_wcid *wcid,
 
 	memset(cb, 0, sizeof(*cb));
 
-	if (!wcid)
+	if (!wcid || !rcu_access_pointer(dev->wcid[wcid->idx]))
 		return MT_PACKET_ID_NO_ACK;
 
 	if (info->flags & IEEE80211_TX_CTL_NO_ACK)
@@ -435,12 +435,11 @@ mt76_txq_stopped(struct mt76_queue *q)
 
 static int
 mt76_txq_send_burst(struct mt76_phy *phy, struct mt76_queue *q,
-		    struct mt76_txq *mtxq)
+		    struct mt76_txq *mtxq, struct mt76_wcid *wcid)
 {
 	struct mt76_dev *dev = phy->dev;
 	struct ieee80211_txq *txq = mtxq_to_txq(mtxq);
 	enum mt76_txq_id qid = mt76_txq_get_qid(txq);
-	struct mt76_wcid *wcid = mtxq->wcid;
 	struct ieee80211_tx_info *info;
 	struct sk_buff *skb;
 	int n_frames = 1;
@@ -462,7 +461,9 @@ mt76_txq_send_burst(struct mt76_phy *phy, struct mt76_queue *q,
 		ieee80211_get_tx_rates(txq->vif, txq->sta, skb,
 				       info->control.rates, 1);
 
+	spin_lock(&q->lock);
 	idx = __mt76_tx_queue_skb(phy, qid, skb, wcid, txq->sta, &stop);
+	spin_unlock(&q->lock);
 	if (idx < 0)
 		return idx;
 
@@ -482,14 +483,18 @@ mt76_txq_send_burst(struct mt76_phy *phy, struct mt76_queue *q,
 			ieee80211_get_tx_rates(txq->vif, txq->sta, skb,
 					       info->control.rates, 1);
 
+		spin_lock(&q->lock);
 		idx = __mt76_tx_queue_skb(phy, qid, skb, wcid, txq->sta, &stop);
+		spin_unlock(&q->lock);
 		if (idx < 0)
 			break;
 
 		n_frames++;
 	} while (1);
 
+	spin_lock(&q->lock);
 	dev->queue_ops->kick(dev, q);
+	spin_unlock(&q->lock);
 
 	return n_frames;
 }
@@ -520,12 +525,10 @@ mt76_txq_schedule_list(struct mt76_phy *phy, enum mt76_txq_id qid)
 			break;
 
 		mtxq = (struct mt76_txq *)txq->drv_priv;
-		wcid = mtxq->wcid;
-		if (wcid && test_bit(MT_WCID_FLAG_PS, &wcid->flags))
+		wcid = rcu_dereference(dev->wcid[mtxq->wcid]);
+		if (!wcid || test_bit(MT_WCID_FLAG_PS, &wcid->flags))
 			continue;
 
-		spin_lock_bh(&q->lock);
-
 		if (mtxq->send_bar && mtxq->aggr) {
 			struct ieee80211_txq *txq = mtxq_to_txq(mtxq);
 			struct ieee80211_sta *sta = txq->sta;
@@ -534,15 +537,11 @@ mt76_txq_schedule_list(struct mt76_phy *phy, enum mt76_txq_id qid)
 			u8 tid = txq->tid;
 
 			mtxq->send_bar = false;
-			spin_unlock_bh(&q->lock);
 			ieee80211_send_bar(vif, sta->addr, tid, agg_ssn);
-			spin_lock_bh(&q->lock);
 		}
 
 		if (!mt76_txq_stopped(q))
-			n_frames = mt76_txq_send_burst(phy, q, mtxq);
-
-		spin_unlock_bh(&q->lock);
+			n_frames = mt76_txq_send_burst(phy, q, mtxq, wcid);
 
 		ieee80211_return_txq(phy->hw, txq, false);
 
@@ -562,6 +561,7 @@ void mt76_txq_schedule(struct mt76_phy *phy, enum mt76_txq_id qid)
 	if (qid >= 4)
 		return;
 
+	local_bh_disable();
 	rcu_read_lock();
 
 	do {
@@ -571,6 +571,7 @@ void mt76_txq_schedule(struct mt76_phy *phy, enum mt76_txq_id qid)
 	} while (len > 0);
 
 	rcu_read_unlock();
+	local_bh_enable();
 }
 EXPORT_SYMBOL_GPL(mt76_txq_schedule);
 
@@ -720,12 +721,17 @@ int mt76_token_consume(struct mt76_dev *dev, struct mt76_txwi_cache **ptxwi)
 
 	spin_lock_bh(&dev->token_lock);
 
-	token = idr_alloc(&dev->token, *ptxwi, 0, dev->drv->token_size,
-			  GFP_ATOMIC);
+	token = idr_alloc(&dev->token, *ptxwi, 0, dev->token_size, GFP_ATOMIC);
 	if (token >= 0)
 		dev->token_count++;
 
-	if (dev->token_count >= dev->drv->token_size - MT76_TOKEN_FREE_THR)
+#ifdef CONFIG_NET_MEDIATEK_SOC_WED
+	if (mtk_wed_device_active(&dev->mmio.wed) &&
+	    token >= dev->mmio.wed.wlan.token_start)
+		dev->wed_token_count++;
+#endif
+
+	if (dev->token_count >= dev->token_size - MT76_TOKEN_FREE_THR)
 		__mt76_set_tx_blocked(dev, true);
 
 	spin_unlock_bh(&dev->token_lock);
@@ -742,10 +748,18 @@ mt76_token_release(struct mt76_dev *dev, int token, bool *wake)
 	spin_lock_bh(&dev->token_lock);
 
 	txwi = idr_remove(&dev->token, token);
-	if (txwi)
+	if (txwi) {
 		dev->token_count--;
 
-	if (dev->token_count < dev->drv->token_size - MT76_TOKEN_FREE_THR &&
+#ifdef CONFIG_NET_MEDIATEK_SOC_WED
+		if (mtk_wed_device_active(&dev->mmio.wed) &&
+		    token >= dev->mmio.wed.wlan.token_start &&
+		    --dev->wed_token_count == 0)
+			wake_up(&dev->tx_wait);
+#endif
+	}
+
+	if (dev->token_count < dev->token_size - MT76_TOKEN_FREE_THR &&
 	    dev->phy.q_tx[0]->blocked)
 		*wake = true;