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| author | Lorenzo Bianconi <lorenzo.bianconi@redhat.com> | 2018-12-28 15:44:09 +0100 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2019-01-11 15:10:19 +0100 |
| commit | c1e0d2be0acff5e99a59ddcc5af415e48abc6c5e (patch) | |
| tree | bd6635e2777ffe7365b14925acb2669bc43cdffd /drivers/net/wireless/mediatek/mt76/mt76x02_debugfs.c | |
| parent | 87e86f90196fa074f8f6ac0e77d1287d9239878b (diff) | |
| download | lwn-c1e0d2be0acff5e99a59ddcc5af415e48abc6c5e.tar.gz lwn-c1e0d2be0acff5e99a59ddcc5af415e48abc6c5e.zip | |
mt76: mmio: introduce mt76x02_check_tx_hang watchdog
Port mt76x02_check_tx_hang watchdog from vendor driver in order to
perform a device reset when tx mac/dma logic hangs. Tx mac/dma stuck
has been observed when the device is heavy loaded or in a noisy
environment. Moreover introduce wdt delayed work in order to run
tx_hang watchdog. For the moment run mt76x02_check_tx_hang watchdog
just on mt76x2 devices since the issue has not been observed on mt76x0
driver yet
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt76x02_debugfs.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt76x02_debugfs.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_debugfs.c b/drivers/net/wireless/mediatek/mt76/mt76x02_debugfs.c index a9d52ba1e270..7580c5c986ff 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_debugfs.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_debugfs.c @@ -133,5 +133,7 @@ void mt76x02_init_debugfs(struct mt76x02_dev *dev) read_txpower); debugfs_create_devm_seqfile(dev->mt76.dev, "agc", dir, read_agc); + + debugfs_create_u32("tx_hang_reset", 0400, dir, &dev->tx_hang_reset); } EXPORT_SYMBOL_GPL(mt76x02_init_debugfs); |