drivers/infiniband/hw/hfi1/debugfs.h

   1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
   2 /*
   3  * Copyright(c) 2015, 2016, 2018 Intel Corporation.
   4  */
   5
   6 #ifndef _HFI1_DEBUGFS_H
   7 #define _HFI1_DEBUGFS_H
   8
   9 struct hfi1_ibdev;
  10
  11 #define DEBUGFS_SEQ_FILE_OPS(name) \
  12 static const struct seq_operations _##name##_seq_ops = { \
  13         .start = _##name##_seq_start, \
  14         .next  = _##name##_seq_next, \
  15         .stop  = _##name##_seq_stop, \
  16         .show  = _##name##_seq_show \
  17 }
  18
  19 #define DEBUGFS_SEQ_FILE_OPEN(name) \
  20 static int _##name##_open(struct inode *inode, struct file *s) \
  21 { \
  22         struct seq_file *seq; \
  23         int ret; \
  24         ret =  seq_open(s, &_##name##_seq_ops); \
  25         if (ret) \
  26                 return ret; \
  27         seq = s->private_data; \
  28         seq->private = inode->i_private; \
  29         return 0; \
  30 }
  31
  32 #define DEBUGFS_FILE_OPS(name) \
  33 static const struct file_operations _##name##_file_ops = { \
  34         .owner   = THIS_MODULE, \
  35         .open    = _##name##_open, \
  36         .read    = hfi1_seq_read, \
  37         .llseek  = hfi1_seq_lseek, \
  38         .release = seq_release \
  39 }
  40
  41
  42 ssize_t hfi1_seq_read(struct file *file, char __user *buf, size_t size,
  43                       loff_t *ppos);
  44 loff_t hfi1_seq_lseek(struct file *file, loff_t offset, int whence);
  45
  46 #ifdef CONFIG_DEBUG_FS
  47 void hfi1_dbg_ibdev_init(struct hfi1_ibdev *ibd);
  48 void hfi1_dbg_ibdev_exit(struct hfi1_ibdev *ibd);
  49 void hfi1_dbg_init(void);
  50 void hfi1_dbg_exit(void);
  51
  52 #else
  53 static inline void hfi1_dbg_ibdev_init(struct hfi1_ibdev *ibd)
  54 {
  55 }
  56
  57 static inline void hfi1_dbg_ibdev_exit(struct hfi1_ibdev *ibd)
  58 {
  59 }
  60
  61 static inline void hfi1_dbg_init(void)
  62 {
  63 }
  64
  65 static inline void hfi1_dbg_exit(void)
  66 {
  67 }
  68 #endif
  69
  70 #endif                          /* _HFI1_DEBUGFS_H */