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kernel/linux-rt-4.4.41/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.h 2.82 KB
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  /*
   * This file is part of the Chelsio T4 Ethernet driver for Linux.
   *
   * Copyright (c) 2003-2014 Chelsio Communications, Inc. All rights reserved.
   *
   * This software is available to you under a choice of one of two
   * licenses.  You may choose to be licensed under the terms of the GNU
   * General Public License (GPL) Version 2, available from the file
   * COPYING in the main directory of this source tree, or the
   * OpenIB.org BSD license below:
   *
   *     Redistribution and use in source and binary forms, with or
   *     without modification, are permitted provided that the following
   *     conditions are met:
   *
   *      - Redistributions of source code must retain the above
   *        copyright notice, this list of conditions and the following
   *        disclaimer.
   *
   *      - Redistributions in binary form must reproduce the above
   *        copyright notice, this list of conditions and the following
   *        disclaimer in the documentation and/or other materials
   *        provided with the distribution.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
   * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  
  #ifndef __CXGB4_DEBUGFS_H
  #define __CXGB4_DEBUGFS_H
  
  #include <linux/export.h>
  
  #define DEFINE_SIMPLE_DEBUGFS_FILE(name) \
  static int name##_open(struct inode *inode, struct file *file) \
  { \
  	return single_open(file, name##_show, inode->i_private); \
  } \
  static const struct file_operations name##_debugfs_fops = { \
  	.owner   = THIS_MODULE, \
  	.open    = name##_open, \
  	.read    = seq_read, \
  	.llseek  = seq_lseek, \
  	.release = single_release \
  }
  
  struct t4_debugfs_entry {
  	const char *name;
  	const struct file_operations *ops;
  	umode_t mode;
  	unsigned char data;
  };
  
  struct seq_tab {
  	int (*show)(struct seq_file *seq, void *v, int idx);
  	unsigned int rows;        /* # of entries */
  	unsigned char width;      /* size in bytes of each entry */
  	unsigned char skip_first; /* whether the first line is a header */
  	char data[0];             /* the table data */
  };
  
  static inline unsigned int hex2val(char c)
  {
  	return isdigit(c) ? c - '0' : tolower(c) - 'a' + 10;
  }
  
  struct seq_tab *seq_open_tab(struct file *f, unsigned int rows,
  			     unsigned int width, unsigned int have_header,
  			     int (*show)(struct seq_file *seq, void *v, int i));
  
  int t4_setup_debugfs(struct adapter *adap);
  void add_debugfs_files(struct adapter *adap,
  		       struct t4_debugfs_entry *files,
  		       unsigned int nfiles);
  int mem_open(struct inode *inode, struct file *file);
  
  #endif