From 363788550f41f8ae64451f65aea4e191d068fd89 Mon Sep 17 00:00:00 2001
From: hanwckf <hanwckf@vip.qq.com>
Date: Sun, 31 Dec 2023 22:44:42 +0800
Subject: [PATCH] mediatek: hnat: add hnat statistics

---
 .../ethernet/mediatek/mtk_hnat/hnat_debugfs.c | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat_debugfs.c b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat_debugfs.c
index 3c3487759e..cf85eb3d03 100644
--- a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat_debugfs.c
+++ b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat_debugfs.c
@@ -1436,6 +1436,30 @@ int __hnat_entry_read(struct seq_file *m, void *private, u32 ppe_id)
 	return 0;
 }
 
+static int hnat_stats_read(struct seq_file *m, void *private)
+{
+	struct mtk_hnat *h = hnat_priv;
+	struct foe_entry *entry, *end;
+	int cnt, i;
+
+	seq_printf(m, "PPE_NUM=%d\n", CFG_PPE_NUM);
+
+	for (i = 0; i < CFG_PPE_NUM; i++) {
+		cnt = 0;
+		entry = h->foe_table_cpu[i];
+		end = h->foe_table_cpu[i] + hnat_priv->foe_etry_num;
+		while (entry < end) {
+			if (entry->bfib1.state == dbg_entry_state)
+				cnt++;
+			entry++;
+		}
+		seq_printf(m, "ALL_PPE%d=%d\n", i, hnat_priv->foe_etry_num);
+		seq_printf(m, "BIND_PPE%d=%d\n", i, cnt);
+	}
+
+	return 0;
+}
+
 int hnat_entry_read(struct seq_file *m, void *private)
 {
 	int i;
@@ -1512,6 +1536,18 @@ static const struct file_operations hnat_entry_fops = {
 	.release = single_release,
 };
 
+static int hnat_stats_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, hnat_stats_read, file->private_data);
+}
+
+static const struct file_operations hnat_stats_fops = {
+	.open = hnat_stats_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
 int __hnat_setting_read(struct seq_file *m, void *private, u32 ppe_id)
 {
 	struct mtk_hnat *h = hnat_priv;
@@ -2421,6 +2457,8 @@ int hnat_init_debugfs(struct mtk_hnat *h)
 			    &cpu_reason_fops);
 	debugfs_create_file("hnat_entry", S_IRUGO | S_IRUGO, root, h,
 			    &hnat_entry_fops);
+	debugfs_create_file("hnat_stats", S_IRUGO | S_IRUGO, root, h,
+			    &hnat_stats_fops);
 	debugfs_create_file("hnat_setting", S_IRUGO | S_IRUGO, root, h,
 			    &hnat_setting_fops);
 	debugfs_create_file("mcast_table", S_IRUGO | S_IRUGO, root, h,