LXR linux/drivers/net/ethernet/chelsio/cxgb4/cxgb4

   1/*
   2 * This file is part of the Chelsio T4 Ethernet driver for Linux.
   3 *
   4 * Copyright (c) 2003-2014 Chelsio Communications, Inc. All rights reserved.
   5 *
   6 * This software is available to you under a choice of one of two
   7 * licenses.  You may choose to be licensed under the terms of the GNU
   8 * General Public License (GPL) Version 2, available from the file
   9 * COPYING in the main directory of this source tree, or the
  10 * OpenIB.org BSD license below:
  11 *
  12 *     Redistribution and use in source and binary forms, with or
  13 *     without modification, are permitted provided that the following
  14 *     conditions are met:
  15 *
  16 *      - Redistributions of source code must retain the above
  17 *        copyright notice, this list of conditions and the following
  18 *        disclaimer.
  19 *
  20 *      - Redistributions in binary form must reproduce the above
  21 *        copyright notice, this list of conditions and the following
  22 *        disclaimer in the documentation and/or other materials
  23 *        provided with the distribution.
  24 *
  25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  32 * SOFTWARE.
  33 */
  34
  35#ifndef __CXGB4_DEBUGFS_H
  36#define __CXGB4_DEBUGFS_H
  37
  38#include <linux/export.h>
  39
  40#define DEFINE_SIMPLE_DEBUGFS_FILE(name) \
  41static int name##_open(struct inode *inode, struct file *file) \
  42{ \
  43        return single_open(file, name##_show, inode->i_private); \
  44} \
  45static const struct file_operations name##_debugfs_fops = { \
  46        .owner   = THIS_MODULE, \
  47        .open    = name##_open, \
  48        .read    = seq_read, \
  49        .llseek  = seq_lseek, \
  50        .release = single_release \
  51}
  52
  53struct t4_debugfs_entry {
  54        const char *name;
  55        const struct file_operations *ops;
  56        umode_t mode;
  57        unsigned char data;
  58};
  59
  60struct seq_tab {
  61        int (*show)(struct seq_file *seq, void *v, int idx);
  62        unsigned int rows;        /* # of entries */
  63        unsigned char width;      /* size in bytes of each entry */
  64        unsigned char skip_first; /* whether the first line is a header */
  65        char data[0];             /* the table data */
  66};
  67
  68static inline unsigned int hex2val(char c)
  69{
  70        return isdigit(c) ? c - '0' : tolower(c) - 'a' + 10;
  71}
  72
  73struct seq_tab *seq_open_tab(struct file *f, unsigned int rows,
  74                             unsigned int width, unsigned int have_header,
  75                             int (*show)(struct seq_file *seq, void *v, int i));
  76
  77int t4_setup_debugfs(struct adapter *adap);
  78void add_debugfs_files(struct adapter *adap,
  79                       struct t4_debugfs_entry *files,
  80                       unsigned int nfiles);
  81int mem_open(struct inode *inode, struct file *file);
  82
  83#endif
  84