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debugfs: add a file for dumping tx queue state

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Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Felix Fietkau
2016-02-05 01:15:25 +01:00
parent 78155b54ac
commit a6c48ae56e
1 changed files with 20 additions and 0 deletions
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debugfs.c
+20
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@@ -32,6 +32,25 @@ mt76_reg_get(void *data, u64 *val)
DEFINE_SIMPLE_ATTRIBUTE(fops_regval, mt76_reg_get, mt76_reg_set, "0x%08llx\n");
static int
mt76_queues_read(struct seq_file *s, void *data)
{
struct mt76_dev *dev = dev_get_drvdata(s->private);
int i;
for (i = 0; i < ARRAY_SIZE(dev->q_tx); i++) {
struct mt76_queue *q = &dev->q_tx[i];
if (!q->ndesc)
continue;
seq_printf(s,
"%d: queued=%d head=%d tail=%d swq_queued=%d\n",
i, q->queued, q->head, q->tail, q->swq_queued);
}
return 0;
}
struct dentry *mt76_register_debugfs(struct mt76_dev *dev)
{
@@ -44,6 +63,7 @@ struct dentry *mt76_register_debugfs(struct mt76_dev *dev)
debugfs_create_u32("regidx", S_IRUSR | S_IWUSR, dir, &dev->debugfs_reg);
debugfs_create_file("regval", S_IRUSR | S_IWUSR, dir, dev, &fops_regval);
debugfs_create_blob("eeprom", S_IRUSR, dir, &dev->eeprom);
debugfs_create_devm_seqfile(dev->dev, "queues", dir, mt76_queues_read);
return dir;
}