ena_debugfs.c

 1// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
 2/* Copyright (c) Amazon.com, Inc. or its affiliates.
 3 * All rights reserved.
 4 */
 5
 6#ifdef CONFIG_DEBUG_FS
 7
 8#include <linux/seq_file.h>
 9#include <linux/pci.h>
10#include "ena_debugfs.h"
11#include "ena_phc.h"
12
13static int phc_stats_show(struct seq_file *file, void *priv)
14{
15	struct ena_adapter *adapter = file->private;
16
17	if (!ena_phc_is_active(adapter))
18		return 0;
19
20	seq_printf(file,
21		   "phc_cnt: %llu\n",
22		   adapter->ena_dev->phc.stats.phc_cnt);
23	seq_printf(file,
24		   "phc_exp: %llu\n",
25		   adapter->ena_dev->phc.stats.phc_exp);
26	seq_printf(file,
27		   "phc_skp: %llu\n",
28		   adapter->ena_dev->phc.stats.phc_skp);
29	seq_printf(file,
30		   "phc_err_dv: %llu\n",
31		   adapter->ena_dev->phc.stats.phc_err_dv);
32	seq_printf(file,
33		   "phc_err_ts: %llu\n",
34		   adapter->ena_dev->phc.stats.phc_err_ts);
35
36	return 0;
37}
38
39DEFINE_SHOW_ATTRIBUTE(phc_stats);
40
41void ena_debugfs_init(struct net_device *dev)
42{
43	struct ena_adapter *adapter = netdev_priv(dev);
44
45	adapter->debugfs_base =
46		debugfs_create_dir(dev_name(&adapter->pdev->dev), NULL);
47
48	debugfs_create_file("phc_stats",
49			    0400,
50			    adapter->debugfs_base,
51			    adapter,
52			    &phc_stats_fops);
53}
54
55void ena_debugfs_terminate(struct net_device *dev)
56{
57	struct ena_adapter *adapter = netdev_priv(dev);
58
59	debugfs_remove_recursive(adapter->debugfs_base);
60}
61
62#endif /* CONFIG_DEBUG_FS */