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mt76: add rx queues info to mt76 debugfs

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Introduce rx-queues debugfs node in order to dump rx queues status.
This would be useful for mcu fw debugging

Signed-off-by: Lorenzo Bianconi <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Lorenzo Bianconi
2020-04-22 18:02:07 +02:00
committed by Felix Fietkau
parent 8304b38661
commit 722d1f47d8
4 changed files with 25 additions and 4 deletions
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debugfs.c
+21
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@@ -46,6 +46,25 @@ int mt76_queues_read(struct seq_file *s, void *data)
}
EXPORT_SYMBOL_GPL(mt76_queues_read);
static int mt76_rx_queues_read(struct seq_file *s, void *data)
{
struct mt76_dev *dev = dev_get_drvdata(s->private);
int i, queued;
for (i = 0; i < ARRAY_SIZE(dev->q_rx); i++) {
struct mt76_queue *q = &dev->q_rx[i];
if (!q->ndesc)
continue;
queued = mt76_is_usb(dev) ? q->ndesc - q->queued : q->queued;
seq_printf(s, "%d: queued=%d head=%d tail=%d\n",
i, queued, q->head, q->tail);
}
return 0;
}
void mt76_seq_puts_array(struct seq_file *file, const char *str,
s8 *val, int len)
{
@@ -93,6 +112,8 @@ struct dentry *mt76_register_debugfs(struct mt76_dev *dev)
debugfs_create_blob("otp", 0400, dir, &dev->otp);
debugfs_create_devm_seqfile(dev->dev, "rate_txpower", dir,
mt76_read_rate_txpower);
debugfs_create_devm_seqfile(dev->dev, "rx-queues", dir,
mt76_rx_queues_read);
return dir;
}