1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
2 /* Copyright 2019 NXP */
3 
4 #include <linux/module.h>
5 #include <linux/device.h>
6 #include <linux/debugfs.h>
7 #include "dpseci-debugfs.h"
8 
9 static int dpseci_dbg_fqs_show(struct seq_file *file, void *offset)
10 {
11 	struct dpaa2_caam_priv *priv = (struct dpaa2_caam_priv *)file->private;
12 	u32 fqid, fcnt, bcnt;
13 	int i, err;
14 
15 	seq_printf(file, "FQ stats for %s:\n", dev_name(priv->dev));
16 	seq_printf(file, "%s%16s%16s\n",
17 		   "Rx-VFQID",
18 		   "Pending frames",
19 		   "Pending bytes");
20 
21 	for (i = 0; i <  priv->num_pairs; i++) {
22 		fqid = priv->rx_queue_attr[i].fqid;
23 		err = dpaa2_io_query_fq_count(NULL, fqid, &fcnt, &bcnt);
24 		if (err)
25 			continue;
26 
27 		seq_printf(file, "%5d%16u%16u\n", fqid, fcnt, bcnt);
28 	}
29 
30 	seq_printf(file, "%s%16s%16s\n",
31 		   "Tx-VFQID",
32 		   "Pending frames",
33 		   "Pending bytes");
34 
35 	for (i = 0; i <  priv->num_pairs; i++) {
36 		fqid = priv->tx_queue_attr[i].fqid;
37 		err = dpaa2_io_query_fq_count(NULL, fqid, &fcnt, &bcnt);
38 		if (err)
39 			continue;
40 
41 		seq_printf(file, "%5d%16u%16u\n", fqid, fcnt, bcnt);
42 	}
43 
44 	return 0;
45 }
46 
47 DEFINE_SHOW_ATTRIBUTE(dpseci_dbg_fqs);
48 
49 void dpaa2_dpseci_debugfs_init(struct dpaa2_caam_priv *priv)
50 {
51 	priv->dfs_root = debugfs_create_dir(dev_name(priv->dev), NULL);
52 
53 	debugfs_create_file("fq_stats", 0444, priv->dfs_root, priv,
54 			    &dpseci_dbg_fqs_fops);
55 }
56 
57 void dpaa2_dpseci_debugfs_exit(struct dpaa2_caam_priv *priv)
58 {
59 	debugfs_remove_recursive(priv->dfs_root);
60 }
61