[PATCH v2 mac80211-next 7/7] mt76: mt7915: add twt_stats knob in debugfs

Lorenzo Bianconi
2021-08-09T17:29:12Z

Introduce twt_stats knob in debugfs in order to dump established
agreements

Tested-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
.../wireless/mediatek/mt76/mt7915/debugfs.c | 28 +++++++++++++++++++
1 file changed, 28 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
index 1a48b09d0cb7..c54239e84243 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
@@ -335,6 +335,32 @@ mt7915_read_rate_txpower(struct seq_file *s, void *data)
return 0;
}

+static int
+mt7915_twt_stats(struct seq_file *s, void *data)
+{
+ struct mt7915_dev *dev = dev_get_drvdata(s->private);
+ struct mt7915_twt_flow *iter;
+
+ rcu_read_lock();
+
+ seq_puts(s, " wcid | id | flags | exp | mantissa");
+ seq_puts(s, " | duration | tsf |\n");
+ list_for_each_entry_rcu(iter, &dev->twt_list, list)
+ seq_printf(s,
+ "%9d | %8d | %5c%c%c%c | %8d | %8d | %8d | %14lld |\n",
+ iter->wcid, iter->id,
+ iter->sched ? 's' : 'u',
+ iter->protection ? 'p' : '-',
+ iter->trigger ? 't' : '-',
+ iter->flowtype ? '-' : 'a',
+ iter->exp, iter->mantissa,
+ iter->duration, iter->tsf);
+
+ rcu_read_unlock();
+
+ return 0;
+}
+
int mt7915_init_debugfs(struct mt7915_dev *dev)
{
struct dentry *dir;
@@ -352,6 +378,8 @@ int mt7915_init_debugfs(struct mt7915_dev *dev)
debugfs_create_file("implicit_txbf", 0600, dir, dev,
&fops_implicit_txbf);
debugfs_create_u32("dfs_hw_pattern", 0400, dir, &dev->hw_pattern);
+ debugfs_create_devm_seqfile(dev->mt76.dev, "twt_stats", dir,
+ mt7915_twt_stats);
/* test knobs */
debugfs_create_file("radar_trigger", 0200, dir, dev,
&fops_radar_trigger);
--
2.31.1