[PATCH 6/6] mt76: only schedule txqs from the tx tasklet

[Felix Fietkau]

Reduces lock contention from the tx path and improves performance

Signed-off-by: Felix Fietkau <n...@nbd.name>
---
 drivers/net/wireless/mediatek/mt76/dma.c          | 2 --
 drivers/net/wireless/mediatek/mt76/mt7603/dma.c   | 2 ++
 drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c | 3 +++
 drivers/net/wireless/mediatek/mt76/tx.c           | 2 +-
 4 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/dma.c 
b/drivers/net/wireless/mediatek/mt76/dma.c
index 7d8f9b8a81b5..35010915697c 100644
--- a/drivers/net/wireless/mediatek/mt76/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/dma.c
@@ -205,8 +205,6 @@ mt76_dma_tx_cleanup(struct mt76_dev *dev, enum mt76_txq_id 
qid, bool flush)
 
        spin_unlock_bh(&q->lock);
 
-       if (!flush)
-               mt76_txq_schedule(dev, qid);
        if (wake)
                ieee80211_wake_queue(dev->hw, qid);
 }
diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/dma.c 
b/drivers/net/wireless/mediatek/mt76/mt7603/dma.c
index f7e3566c96fd..27e2d9f90553 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/dma.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/dma.c
@@ -145,6 +145,8 @@ mt7603_tx_tasklet(unsigned long data)
        for (i = MT_TXQ_MCU; i >= 0; i--)
                mt76_queue_tx_cleanup(dev, i, false);
 
+       mt76_txq_schedule_all(&dev->mt76);
+
        mt7603_irq_enable(dev, MT_INT_TX_DONE_ALL);
 }
 
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c 
b/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c
index 1e82b99d0789..7186a382c686 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c
@@ -211,6 +211,9 @@ static void mt76x02_tx_tasklet(unsigned long data)
                mt76_queue_tx_cleanup(dev, i, false);
 
        mt76x02_mac_poll_tx_status(dev, false);
+
+       mt76_txq_schedule_all(&dev->mt76);
+
        mt76x02_irq_enable(dev, MT_INT_TX_DONE_ALL);
 }
 
diff --git a/drivers/net/wireless/mediatek/mt76/tx.c 
b/drivers/net/wireless/mediatek/mt76/tx.c
index 534ad9fb8832..60bbb6561d8f 100644
--- a/drivers/net/wireless/mediatek/mt76/tx.c
+++ b/drivers/net/wireless/mediatek/mt76/tx.c
@@ -594,7 +594,7 @@ void mt76_wake_tx_queue(struct ieee80211_hw *hw, struct 
ieee80211_txq *txq)
        if (!test_bit(MT76_STATE_RUNNING, &dev->state))
                return;
 
-       mt76_txq_schedule(dev, txq->ac);
+       tasklet_schedule(&dev->tx_tasklet);
 }
 EXPORT_SYMBOL_GPL(mt76_wake_tx_queue);
 
-- 
2.17.0