LXR linux/drivers/crypto/nx/nx

   1/**
   2 * debugfs routines supporting the Power 7+ Nest Accelerators driver
   3 *
   4 * Copyright (C) 2011-2012 International Business Machines Inc.
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation; version 2 only.
   9 *
  10 * This program is distributed in the hope that it will be useful,
  11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 * GNU General Public License for more details.
  14 *
  15 * You should have received a copy of the GNU General Public License
  16 * along with this program; if not, write to the Free Software
  17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18 *
  19 * Author: Kent Yoder <yoder1@us.ibm.com>
  20 */
  21
  22#include <linux/device.h>
  23#include <linux/kobject.h>
  24#include <linux/string.h>
  25#include <linux/debugfs.h>
  26#include <linux/module.h>
  27#include <linux/init.h>
  28#include <linux/crypto.h>
  29#include <crypto/hash.h>
  30#include <asm/vio.h>
  31
  32#include "nx_csbcpb.h"
  33#include "nx.h"
  34
  35#ifdef CONFIG_DEBUG_FS
  36
  37/*
  38 * debugfs
  39 *
  40 * For documentation on these attributes, please see:
  41 *
  42 * Documentation/ABI/testing/debugfs-pfo-nx-crypto
  43 */
  44
  45int nx_debugfs_init(struct nx_crypto_driver *drv)
  46{
  47        struct nx_debugfs *dfs = &drv->dfs;
  48
  49        dfs->dfs_root = debugfs_create_dir(NX_NAME, NULL);
  50
  51        dfs->dfs_aes_ops =
  52                debugfs_create_u32("aes_ops",
  53                                   S_IRUSR | S_IRGRP | S_IROTH,
  54                                   dfs->dfs_root, (u32 *)&drv->stats.aes_ops);
  55        dfs->dfs_sha256_ops =
  56                debugfs_create_u32("sha256_ops",
  57                                   S_IRUSR | S_IRGRP | S_IROTH,
  58                                   dfs->dfs_root,
  59                                   (u32 *)&drv->stats.sha256_ops);
  60        dfs->dfs_sha512_ops =
  61                debugfs_create_u32("sha512_ops",
  62                                   S_IRUSR | S_IRGRP | S_IROTH,
  63                                   dfs->dfs_root,
  64                                   (u32 *)&drv->stats.sha512_ops);
  65        dfs->dfs_aes_bytes =
  66                debugfs_create_u64("aes_bytes",
  67                                   S_IRUSR | S_IRGRP | S_IROTH,
  68                                   dfs->dfs_root,
  69                                   (u64 *)&drv->stats.aes_bytes);
  70        dfs->dfs_sha256_bytes =
  71                debugfs_create_u64("sha256_bytes",
  72                                   S_IRUSR | S_IRGRP | S_IROTH,
  73                                   dfs->dfs_root,
  74                                   (u64 *)&drv->stats.sha256_bytes);
  75        dfs->dfs_sha512_bytes =
  76                debugfs_create_u64("sha512_bytes",
  77                                   S_IRUSR | S_IRGRP | S_IROTH,
  78                                   dfs->dfs_root,
  79                                   (u64 *)&drv->stats.sha512_bytes);
  80        dfs->dfs_errors =
  81                debugfs_create_u32("errors",
  82                                   S_IRUSR | S_IRGRP | S_IROTH,
  83                                   dfs->dfs_root, (u32 *)&drv->stats.errors);
  84        dfs->dfs_last_error =
  85                debugfs_create_u32("last_error",
  86                                   S_IRUSR | S_IRGRP | S_IROTH,
  87                                   dfs->dfs_root,
  88                                   (u32 *)&drv->stats.last_error);
  89        dfs->dfs_last_error_pid =
  90                debugfs_create_u32("last_error_pid",
  91                                   S_IRUSR | S_IRGRP | S_IROTH,
  92                                   dfs->dfs_root,
  93                                   (u32 *)&drv->stats.last_error_pid);
  94        return 0;
  95}
  96
  97void
  98nx_debugfs_fini(struct nx_crypto_driver *drv)
  99{
 100        debugfs_remove_recursive(drv->dfs.dfs_root);
 101}
 102
 103#endif
 104