drivers/crypto/nx/nx_debugfs.c

   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
  45 int 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
  97 void
  98 nx_debugfs_fini(struct nx_crypto_driver *drv)
  99 {
 100         debugfs_remove_recursive(drv->dfs.dfs_root);
 101 }
 102
 103 #endif