mt76: introduce tx_queue_skb function pointer in mt76_bus_ops

Add tx_queue_skb function pointer in mt76_bus_ops since mt76x2u based
devices do not map mt76x2_txwi on dma buffers and it is not possible
to reuse mt76_dma_tx_queue_skb() routine to enqueue tx frames to
hw buffers
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/mediatek/mt76/dma.c

@@ -510,6 +510,7 @@ static const struct mt76_queue_ops mt76_dma_ops = {
 	.init = mt76_dma_init,
 	.alloc = mt76_dma_alloc_queue,
 	.add_buf = mt76_dma_add_buf,
+	.tx_queue_skb = mt76_dma_tx_queue_skb,
 	.tx_cleanup = mt76_dma_tx_cleanup,
 	.rx_reset = mt76_dma_rx_reset,
 	.kick = mt76_dma_kick_queue,

drivers/net/wireless/mediatek/mt76/mt76.h

@@ -30,6 +30,7 @@
 #define MT_RX_BUF_SIZE      2048
 
 struct mt76_dev;
+struct mt76_wcid;
 
 struct mt76_bus_ops {
 	u32 (*rr)(struct mt76_dev *dev, u32 offset);
@@ -110,6 +111,10 @@ struct mt76_queue_ops {
 		       struct mt76_queue_buf *buf, int nbufs, u32 info,
 		       struct sk_buff *skb, void *txwi);
 
+	int (*tx_queue_skb)(struct mt76_dev *dev, struct mt76_queue *q,
+			    struct sk_buff *skb, struct mt76_wcid *wcid,
+			    struct ieee80211_sta *sta);
+
 	void *(*dequeue)(struct mt76_dev *dev, struct mt76_queue *q, bool flush,
 			 int *len, u32 *info, bool *more);
 

drivers/net/wireless/mediatek/mt76/tx.c

@@ -111,7 +111,7 @@ mt76_tx(struct mt76_dev *dev, struct ieee80211_sta *sta,
 	q = &dev->q_tx[qid];
 
 	spin_lock_bh(&q->lock);
-	mt76_dma_tx_queue_skb(dev, q, skb, wcid, sta);
+	dev->queue_ops->tx_queue_skb(dev, q, skb, wcid, sta);
 	dev->queue_ops->kick(dev, q);
 
 	if (q->queued > q->ndesc - 8)
@@ -167,7 +167,7 @@ mt76_queue_ps_skb(struct mt76_dev *dev, struct ieee80211_sta *sta,
 		info->flags |= IEEE80211_TX_STATUS_EOSP;
 
 	mt76_skb_set_moredata(skb, !last);
-	mt76_dma_tx_queue_skb(dev, hwq, skb, wcid, sta);
+	dev->queue_ops->tx_queue_skb(dev, hwq, skb, wcid, sta);
 }
 
 void
@@ -247,7 +247,7 @@ mt76_txq_send_burst(struct mt76_dev *dev, struct mt76_queue *hwq,
 	if (ampdu)
 		mt76_check_agg_ssn(mtxq, skb);
 
-	idx = mt76_dma_tx_queue_skb(dev, hwq, skb, wcid, txq->sta);
+	idx = dev->queue_ops->tx_queue_skb(dev, hwq, skb, wcid, txq->sta);
 
 	if (idx < 0)
 		return idx;
@@ -282,7 +282,8 @@ mt76_txq_send_burst(struct mt76_dev *dev, struct mt76_queue *hwq,
 		if (cur_ampdu)
 			mt76_check_agg_ssn(mtxq, skb);
 
-		idx = mt76_dma_tx_queue_skb(dev, hwq, skb, wcid, txq->sta);
+		idx = dev->queue_ops->tx_queue_skb(dev, hwq, skb, wcid,
+						   txq->sta);
 		if (idx < 0)
 			return idx;