[go: nahoru, domu]
1/**
2 * debugfs routines supporting the Power 7+ Nest Accelerators driver
3 *
4 * Copyright (C) 2011-2012 International Business Machines Inc.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 only.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 *
19 * Author: Kent Yoder <yoder1@us.ibm.com>
20 */
21
22#include <linux/device.h>
23#include <linux/kobject.h>
24#include <linux/string.h>
25#include <linux/debugfs.h>
26#include <linux/module.h>
27#include <linux/init.h>
28#include <linux/crypto.h>
29#include <crypto/hash.h>
30#include <asm/vio.h>
31
32#include "nx_csbcpb.h"
33#include "nx.h"
34
35#ifdef CONFIG_DEBUG_FS
36
37/*
38 * debugfs
39 *
40 * For documentation on these attributes, please see:
41 *
42 * Documentation/ABI/testing/debugfs-pfo-nx-crypto
43 */
44
45int nx_debugfs_init(struct nx_crypto_driver *drv)
46{
47	struct nx_debugfs *dfs = &drv->dfs;
48
49	dfs->dfs_root = debugfs_create_dir(NX_NAME, NULL);
50
51	dfs->dfs_aes_ops =
52		debugfs_create_u32("aes_ops",
53				   S_IRUSR | S_IRGRP | S_IROTH,
54				   dfs->dfs_root, (u32 *)&drv->stats.aes_ops);
55	dfs->dfs_sha256_ops =
56		debugfs_create_u32("sha256_ops",
57				   S_IRUSR | S_IRGRP | S_IROTH,
58				   dfs->dfs_root,
59				   (u32 *)&drv->stats.sha256_ops);
60	dfs->dfs_sha512_ops =
61		debugfs_create_u32("sha512_ops",
62				   S_IRUSR | S_IRGRP | S_IROTH,
63				   dfs->dfs_root,
64				   (u32 *)&drv->stats.sha512_ops);
65	dfs->dfs_aes_bytes =
66		debugfs_create_u64("aes_bytes",
67				   S_IRUSR | S_IRGRP | S_IROTH,
68				   dfs->dfs_root,
69				   (u64 *)&drv->stats.aes_bytes);
70	dfs->dfs_sha256_bytes =
71		debugfs_create_u64("sha256_bytes",
72				   S_IRUSR | S_IRGRP | S_IROTH,
73				   dfs->dfs_root,
74				   (u64 *)&drv->stats.sha256_bytes);
75	dfs->dfs_sha512_bytes =
76		debugfs_create_u64("sha512_bytes",
77				   S_IRUSR | S_IRGRP | S_IROTH,
78				   dfs->dfs_root,
79				   (u64 *)&drv->stats.sha512_bytes);
80	dfs->dfs_errors =
81		debugfs_create_u32("errors",
82				   S_IRUSR | S_IRGRP | S_IROTH,
83				   dfs->dfs_root, (u32 *)&drv->stats.errors);
84	dfs->dfs_last_error =
85		debugfs_create_u32("last_error",
86				   S_IRUSR | S_IRGRP | S_IROTH,
87				   dfs->dfs_root,
88				   (u32 *)&drv->stats.last_error);
89	dfs->dfs_last_error_pid =
90		debugfs_create_u32("last_error_pid",
91				   S_IRUSR | S_IRGRP | S_IROTH,
92				   dfs->dfs_root,
93				   (u32 *)&drv->stats.last_error_pid);
94	return 0;
95}
96
97void
98nx_debugfs_fini(struct nx_crypto_driver *drv)
99{
100	debugfs_remove_recursive(drv->dfs.dfs_root);
101}
102
103#endif
104