diff options
| author | Felix Fietkau <nbd@nbd.name> | 2024-08-27 11:30:02 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2024-09-06 14:23:06 +0200 |
| commit | 10f73bb3938f7c5cee78b8bdb7dca328c639c9e6 (patch) | |
| tree | e547615cf9b0d98804b1280adbcb38e4f0b10b63 /drivers/net/wireless | |
| parent | 3688c18b65aeb2a1f2fde108400afbab129a8cc1 (diff) | |
wifi: mt76: mt7915: reset the device after MCU timeout
On MT7915, MCU hangs do not trigger watchdog interrupts, so they can only
be detected through MCU message timeouts. Ensure that the hardware gets
restarted when that happens in order to prevent a permanent stuck state.
Link: https://patch.msgid.link/20240827093011.18621-15-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c index 0cde1b3c7d41..81375b5d0021 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c @@ -157,12 +157,21 @@ static int mt7915_mcu_parse_response(struct mt76_dev *mdev, int cmd, struct sk_buff *skb, int seq) { + struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76); struct mt76_connac2_mcu_rxd *rxd; int ret = 0; if (!skb) { dev_err(mdev->dev, "Message %08x (seq %d) timeout\n", cmd, seq); + + if (!test_and_set_bit(MT76_MCU_RESET, &dev->mphy.state)) { + dev->recovery.restart = true; + wake_up(&dev->mt76.mcu.wait); + queue_work(dev->mt76.wq, &dev->reset_work); + wake_up(&dev->reset_wait); + } + return -ETIMEDOUT; } |