1. 根目录:
2. drivers
3. net
4. ethernet
5. chelsio
6. cxgb4
7. cxgb4_debugfs.h

/*
 * 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