diff options
| author | Felix Fietkau <nbd@nbd.name> | 2020-02-16 16:08:58 +0100 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2020-05-12 19:52:27 +0200 |
| commit | fd6c2dfa49b762ffe773a835ba62fa692df4c1b0 (patch) | |
| tree | d33462a14951b7e912563091677a781c67a31c48 /drivers/net/wireless/mediatek/mt76/mt76x02_mcu.c | |
| parent | 5bb4e125815aa769a7d2ab7dc203593925bba0ba (diff) | |
mt76: mt76x02: fix handling MCU timeouts during hw restart
If a MCU timeout occurs before a hw restart completes, another hw restart
is scheduled, and the station state gets corrupted.
To speed up dealing with that, do not issue any MCU commands after the first
timeout, and defer handling timeouts until the reset has completed.
Also ignore errors in MCU commands during start/config to avoid making user
space fail on this condition. If it happens, another restart is scheduled
quickly, and that usually recovers the hardware properly.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x02_mcu.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x02_mcu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mcu.c index 5664749ad6c1..8247611d9b18 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mcu.c @@ -20,6 +20,9 @@ int mt76x02_mcu_msg_send(struct mt76_dev *mdev, int cmd, const void *data, int ret; u8 seq; + if (mt76_is_mmio(&dev->mt76) && dev->mcu_timeout) + return -EIO; + skb = mt76x02_mcu_msg_alloc(data, len); if (!skb) return -ENOMEM; |