mt76: mt7921: refactor mt7921_mcu_send_message

This is a preliminary patch to introduce mt7921s support.

Refactor mt7921_mcu_send_message to be sharable between mt7921s and
mt7921e.
Tested-by: Deren Wu <deren.wu@mediatek.com>
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7921/mcu.c

@@ -224,12 +224,11 @@ int mt7921_mcu_parse_response(struct mt76_dev *mdev, int cmd,
 }
 EXPORT_SYMBOL_GPL(mt7921_mcu_parse_response);
 
-int mt7921_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
+int mt7921_mcu_fill_message(struct mt76_dev *mdev, struct sk_buff *skb,
 			    int cmd, int *wait_seq)
 {
 	struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
 	int txd_len, mcu_cmd = cmd & MCU_CMD_MASK;
-	enum mt76_mcuq_id txq = MT_MCUQ_WM;
 	struct mt7921_uni_txd *uni_txd;
 	struct mt7921_mcu_txd *mcu_txd;
 	__le32 *txd;
@@ -251,10 +250,8 @@ int mt7921_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
 	if (!seq)
 		seq = ++dev->mt76.mcu.msg_seq & 0xf;
 
-	if (cmd == MCU_CMD_FW_SCATTER) {
-		txq = MT_MCUQ_FWDL;
+	if (cmd == MCU_CMD_FW_SCATTER)
 		goto exit;
-	}
 
 	txd_len = cmd & MCU_UNI_PREFIX ? sizeof(*uni_txd) : sizeof(*mcu_txd);
 	txd = (__le32 *)skb_push(skb, txd_len);
@@ -318,9 +315,9 @@ int mt7921_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
 	if (wait_seq)
 		*wait_seq = seq;
 
-	return mt76_tx_queue_skb_raw(dev, mdev->q_mcu[txq], skb, 0);
+	return 0;
 }
-EXPORT_SYMBOL_GPL(mt7921_mcu_send_message);
+EXPORT_SYMBOL_GPL(mt7921_mcu_fill_message);
 
 static void
 mt7921_mcu_scan_event(struct mt7921_dev *dev, struct sk_buff *skb)

drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h

@@ -381,7 +381,7 @@ void mt7921_mac_write_txwi(struct mt7921_dev *dev, __le32 *txwi,
 			   bool beacon);
 void mt7921_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi);
 void mt7921_mac_sta_poll(struct mt7921_dev *dev);
-int mt7921_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
+int mt7921_mcu_fill_message(struct mt76_dev *mdev, struct sk_buff *skb,
 			    int cmd, int *wait_seq);
 int mt7921_mcu_parse_response(struct mt76_dev *mdev, int cmd,
 			      struct sk_buff *skb, int seq);

drivers/net/wireless/mediatek/mt76/mt7921/pci_mcu.c

@@ -18,6 +18,24 @@ static int mt7921e_driver_own(struct mt7921_dev *dev)
 	return 0;
 }
 
+static int
+mt7921_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
+			int cmd, int *seq)
+{
+	struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
+	enum mt76_mcuq_id txq = MT_MCUQ_WM;
+	int ret;
+
+	ret = mt7921_mcu_fill_message(mdev, skb, cmd, seq);
+	if (ret)
+		return ret;
+
+	if (cmd == MCU_CMD_FW_SCATTER)
+		txq = MT_MCUQ_FWDL;
+
+	return mt76_tx_queue_skb_raw(dev, mdev->q_mcu[txq], skb, 0);
+}
+
 int mt7921e_mcu_init(struct mt7921_dev *dev)
 {
 	static const struct mt76_mcu_ops mt7921_mcu_ops = {