diff options
| author |   Felix Fietkau <nbd@nbd.name> | 2020-08-07 22:05:17 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2020-09-24 18:10:14 +0200 |
| commit | 2c270b0e51ad5a29cf01e1b8d3d651b185d3d3b5 (patch) | |
| tree | c52ad13aeb47e98a7363bd91bad9f48c0e3f503d /drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c | |
| parent | mt76: mt7615: only clear unmasked interrupts in irq tasklet (diff) | |
| download | linux-dev-2c270b0e51ad5a29cf01e1b8d3d651b185d3d3b5.tar.xz linux-dev-2c270b0e51ad5a29cf01e1b8d3d651b185d3d3b5.zip | |
mt76: mt76x02: clean up and fix interrupt masking in the irq handler
Only clear unmasked interrupts. If an interrupt is temporarily masked,
its pending events need to be processed later, even if another interrupt
happened in the mean time.
Disable interrupts in one call before scheduling
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c index bacb1f10a699..cfa3430110d8 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c @@ -263,9 +263,10 @@ EXPORT_SYMBOL_GPL(mt76x02_rx_poll_complete); irqreturn_t mt76x02_irq_handler(int irq, void *dev_instance) { struct mt76x02_dev *dev = dev_instance; - u32 intr; + u32 intr, mask; intr = mt76_rr(dev, MT_INT_SOURCE_CSR); + intr &= dev->mt76.mmio.irqmask; mt76_wr(dev, MT_INT_SOURCE_CSR, intr); if (!test_bit(MT76_STATE_INITIALIZED, &dev->mphy.state)) @@ -273,17 +274,17 @@ irqreturn_t mt76x02_irq_handler(int irq, void *dev_instance) trace_dev_irq(&dev->mt76, intr, dev->mt76.mmio.irqmask); - intr &= dev->mt76.mmio.irqmask; + mask = intr & (MT_INT_RX_DONE_ALL | MT_INT_GPTIMER); + if (intr & (MT_INT_TX_DONE_ALL | MT_INT_TX_STAT)) + mask |= MT_INT_TX_DONE_ALL; + + mt76x02_irq_disable(dev, mask); - if (intr & MT_INT_RX_DONE(0)) { - mt76x02_irq_disable(dev, MT_INT_RX_DONE(0)); + if (intr & MT_INT_RX_DONE(0)) napi_schedule(&dev->mt76.napi[0]); - } - if (intr & MT_INT_RX_DONE(1)) { - mt76x02_irq_disable(dev, MT_INT_RX_DONE(1)); + if (intr & MT_INT_RX_DONE(1)) napi_schedule(&dev->mt76.napi[1]); - } if (intr & MT_INT_PRE_TBTT) tasklet_schedule(&dev->mt76.pre_tbtt_tasklet); @@ -299,15 +300,11 @@ irqreturn_t mt76x02_irq_handler(int irq, void *dev_instance) if (intr & MT_INT_TX_STAT) mt76x02_mac_poll_tx_status(dev, true); - if (intr & (MT_INT_TX_STAT | MT_INT_TX_DONE_ALL)) { - mt76x02_irq_disable(dev, MT_INT_TX_DONE_ALL); + if (intr & (MT_INT_TX_STAT | MT_INT_TX_DONE_ALL)) napi_schedule(&dev->mt76.tx_napi); - } - if (intr & MT_INT_GPTIMER) { - mt76x02_irq_disable(dev, MT_INT_GPTIMER); + if (intr & MT_INT_GPTIMER) tasklet_schedule(&dev->dfs_pd.dfs_tasklet); - } return IRQ_HANDLED; } |