mt76x0: introduce mt76x0_tx_prepare_skb routine

Add mt76x0_tx_prepare_skb routine as tx txwi handler.
mt76x0_tx_prepare_skb will be used by mt76-usb layer
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76x0/mt76x0.h

@@ -250,5 +250,8 @@ void mt76x0_dma_cleanup(struct mt76x0_dev *dev);
 
 int mt76x0_dma_enqueue_tx(struct mt76x0_dev *dev, struct sk_buff *skb,
 			   struct mt76_wcid *wcid, int hw_q);
-
+int mt76x0_tx_prepare_skb(struct mt76_dev *mdev, void *data,
+			  struct sk_buff *skb, struct mt76_queue *q,
+			  struct mt76_wcid *wcid, struct ieee80211_sta *sta,
+			  u32 *tx_info);
 #endif

drivers/net/wireless/mediatek/mt76/mt76x0/tx.c

@@ -116,6 +116,21 @@ void mt76x0_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control,
 	trace_mt76x0_tx(&dev->mt76, skb, msta, txwi);
 }
 
+int mt76x0_tx_prepare_skb(struct mt76_dev *mdev, void *data,
+			  struct sk_buff *skb, struct mt76_queue *q,
+			  struct mt76_wcid *wcid, struct ieee80211_sta *sta,
+			  u32 *tx_info)
+{
+	struct mt76x0_dev *dev = container_of(mdev, struct mt76x0_dev, mt76);
+	struct mt76x02_txwi *txwi;
+	int len = skb->len;
+
+	mt76x02_insert_hdr_pad(skb);
+	txwi = mt76x0_push_txwi(dev, skb, sta, wcid, len);
+
+	return mt76x02_set_txinfo(skb, wcid, q2ep(q->hw_idx));
+}
+
 void mt76x0_tx_stat(struct work_struct *work)
 {
 	struct mt76x0_dev *dev = container_of(work, struct mt76x0_dev,