1 #ifndef _HFI1_DEBUGFS_H
2 #define _HFI1_DEBUGFS_H
3 /*
4 * Copyright(c) 2015, 2016, 2018 Intel Corporation.
5 *
6 * This file is provided under a dual BSD/GPLv2 license. When using or
7 * redistributing this file, you may do so under either license.
8 *
9 * GPL LICENSE SUMMARY
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * BSD LICENSE
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
24 * are met:
25 *
26 * - Redistributions of source code must retain the above copyright
27 * notice, this list of conditions and the following disclaimer.
28 * - Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in
30 * the documentation and/or other materials provided with the
31 * distribution.
32 * - Neither the name of Intel Corporation nor the names of its
33 * contributors may be used to endorse or promote products derived
34 * from this software without specific prior written permission.
35 *
36 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
37 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
38 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
39 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
40 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
42 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
43 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
44 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
45 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
46 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
47 *
48 */
49
50 struct hfi1_ibdev;
51
52 #define DEBUGFS_SEQ_FILE_OPS(name) \
53 static const struct seq_operations _##name##_seq_ops = { \
54 .start = _##name##_seq_start, \
55 .next = _##name##_seq_next, \
56 .stop = _##name##_seq_stop, \
57 .show = _##name##_seq_show \
58 }
59
60 #define DEBUGFS_SEQ_FILE_OPEN(name) \
61 static int _##name##_open(struct inode *inode, struct file *s) \
62 { \
63 struct seq_file *seq; \
64 int ret; \
65 ret = seq_open(s, &_##name##_seq_ops); \
66 if (ret) \
67 return ret; \
68 seq = s->private_data; \
69 seq->private = inode->i_private; \
70 return 0; \
71 }
72
73 #define DEBUGFS_FILE_OPS(name) \
74 static const struct file_operations _##name##_file_ops = { \
75 .owner = THIS_MODULE, \
76 .open = _##name##_open, \
77 .read = hfi1_seq_read, \
78 .llseek = hfi1_seq_lseek, \
79 .release = seq_release \
80 }
81
82
83 ssize_t hfi1_seq_read(struct file *file, char __user *buf, size_t size,
84 loff_t *ppos);
85 loff_t hfi1_seq_lseek(struct file *file, loff_t offset, int whence);
86
87 #ifdef CONFIG_DEBUG_FS
88 void hfi1_dbg_ibdev_init(struct hfi1_ibdev *ibd);
89 void hfi1_dbg_ibdev_exit(struct hfi1_ibdev *ibd);
90 void hfi1_dbg_init(void);
91 void hfi1_dbg_exit(void);
92
93 #else
94 static inline void hfi1_dbg_ibdev_init(struct hfi1_ibdev *ibd)
95 {
96 }
97
98 static inline void hfi1_dbg_ibdev_exit(struct hfi1_ibdev *ibd)
99 {
100 }
101
102 static inline void hfi1_dbg_init(void)
103 {
104 }
105
106 static inline void hfi1_dbg_exit(void)
107 {
108 }
109 #endif
110
111 #endif /* _HFI1_DEBUGFS_H */