From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Sun, 18 Apr 2021 16:45:34 +0000 (+0200)
Subject: mt76: mt7663: rely on mt76_connac_pm_ref/mt76_connac_pm_unref in tx/rx napi
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=db928f1ab9789f99a0e57b35f3c8d652ad5350f8;p=uclinux-h8%2Flinux.git

mt76: mt7663: rely on mt76_connac_pm_ref/mt76_connac_pm_unref in tx/rx napi

Introduce mt7615_poll_rx rx napi callback for mt7663.
Do not access device registers in tx/rx napi if the device is not awake.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/dma.c b/drivers/net/wireless/mediatek/mt76/mt7615/dma.c
index d658555f5965..8004ae5c16a9 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/dma.c
@@ -71,15 +71,39 @@ static int mt7615_poll_tx(struct napi_struct *napi, int budget)
 	struct mt7615_dev *dev;
 
 	dev = container_of(napi, struct mt7615_dev, mt76.tx_napi);
+	if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) {
+		napi_complete(napi);
+		queue_work(dev->mt76.wq, &dev->pm.wake_work);
+		return 0;
+	}
 
 	mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_WM], false);
-
-	if (napi_complete_done(napi, 0))
+	if (napi_complete(napi))
 		mt7615_irq_enable(dev, mt7615_tx_mcu_int_mask(dev));
 
+	mt76_connac_pm_unref(&dev->pm);
+
 	return 0;
 }
 
+static int mt7615_poll_rx(struct napi_struct *napi, int budget)
+{
+	struct mt7615_dev *dev;
+	int done;
+
+	dev = container_of(napi->dev, struct mt7615_dev, mt76.napi_dev);
+
+	if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) {
+		napi_complete(napi);
+		queue_work(dev->mt76.wq, &dev->pm.wake_work);
+		return 0;
+	}
+	done = mt76_dma_rx_poll(napi, budget);
+	mt76_connac_pm_unref(&dev->pm);
+
+	return done;
+}
+
 int mt7615_wait_pdma_busy(struct mt7615_dev *dev)
 {
 	struct mt76_dev *mdev = &dev->mt76;
@@ -261,7 +285,7 @@ int mt7615_dma_init(struct mt7615_dev *dev)
 
 	mt76_wr(dev, MT_DELAY_INT_CFG, 0);
 
-	ret = mt76_init_queues(dev, mt76_dma_rx_poll);
+	ret = mt76_init_queues(dev, mt7615_poll_rx);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index 0b386030dbd8..e81c7d322811 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -1913,10 +1913,14 @@ void mt7615_pm_wake_work(struct work_struct *work)
 						pm.wake_work);
 	mphy = dev->phy.mt76;
 
-	if (!mt7615_mcu_set_drv_ctrl(dev))
+	if (!mt7615_mcu_set_drv_ctrl(dev)) {
+		int i;
+
+		mt76_for_each_q_rx(&dev->mt76, i)
+			napi_schedule(&dev->mt76.napi[i]);
 		mt76_connac_pm_dequeue_skbs(mphy, &dev->pm);
-	else
-		dev_err(mphy->dev->dev, "failed to wake device\n");
+		mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_WM], false);
+	}
 
 	ieee80211_wake_queues(mphy->hw);
 	complete_all(&dev->pm.wake_cmpl);