6.6-stable review patch. If anyone has any objections, please let me know.
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From: Felix Fietkau nbd@nbd.name
[ Upstream commit c677dda165231c3efffb9de4bace249d5d2a51b9 ]
Only trigger PSE reset if PSE was stuck, otherwise it can cause DMA issues. Trigger the PSE reset while DMA is fully stopped in order to improve reliabilty.
Fixes: c8846e101502 ("mt76: add driver for MT7603E and MT7628/7688") Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Sasha Levin sashal@kernel.org --- .../net/wireless/mediatek/mt76/mt7603/mac.c | 29 ++++++++----------- 1 file changed, 12 insertions(+), 17 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c index 7a506a0c46e2b..cf21d06257e53 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c @@ -1441,15 +1441,6 @@ static void mt7603_mac_watchdog_reset(struct mt7603_dev *dev)
mt7603_beacon_set_timer(dev, -1, 0);
- if (dev->reset_cause[RESET_CAUSE_RESET_FAILED] || - dev->cur_reset_cause == RESET_CAUSE_RX_PSE_BUSY || - dev->cur_reset_cause == RESET_CAUSE_BEACON_STUCK || - dev->cur_reset_cause == RESET_CAUSE_TX_HANG) - mt7603_pse_reset(dev); - - if (dev->reset_cause[RESET_CAUSE_RESET_FAILED]) - goto skip_dma_reset; - mt7603_mac_stop(dev);
mt76_clear(dev, MT_WPDMA_GLO_CFG, @@ -1459,28 +1450,32 @@ static void mt7603_mac_watchdog_reset(struct mt7603_dev *dev)
mt7603_irq_disable(dev, mask);
- mt76_set(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_FORCE_TX_EOF); - mt7603_pse_client_reset(dev);
mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_WM], true); for (i = 0; i < __MT_TXQ_MAX; i++) mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[i], true);
+ mt7603_dma_sched_reset(dev); + + mt76_tx_status_check(&dev->mt76, true); + mt76_for_each_q_rx(&dev->mt76, i) { mt76_queue_rx_reset(dev, i); }
- mt76_tx_status_check(&dev->mt76, true); + if (dev->reset_cause[RESET_CAUSE_RESET_FAILED] || + dev->cur_reset_cause == RESET_CAUSE_RX_PSE_BUSY) + mt7603_pse_reset(dev);
- mt7603_dma_sched_reset(dev); + if (!dev->reset_cause[RESET_CAUSE_RESET_FAILED]) { + mt7603_mac_dma_start(dev);
- mt7603_mac_dma_start(dev); + mt7603_irq_enable(dev, mask);
- mt7603_irq_enable(dev, mask); + clear_bit(MT76_RESET, &dev->mphy.state); + }
-skip_dma_reset: - clear_bit(MT76_RESET, &dev->mphy.state); mutex_unlock(&dev->mt76.mutex);
mt76_worker_enable(&dev->mt76.tx_worker);