drivers/crypto/nx/nx_debugfs.c

/**
 * debugfs routines supporting the Power 7+ Nest Accelerators driver
 *
 * Copyright (C) 2011-2012 International Business Machines Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 only.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * Author: Kent Yoder <yoder1@us.ibm.com>
 */

#include <linux/device.h>
#include <linux/kobject.h>
#include <linux/string.h>
#include <linux/debugfs.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/crypto.h>
#include <crypto/hash.h>
#include <asm/vio.h>

#include "nx_csbcpb.h"
#include "nx.h"

#ifdef CONFIG_DEBUG_FS

/*
 * debugfs
 *
 * For documentation on these attributes, please see:
 *
 * Documentation/ABI/testing/debugfs-pfo-nx-crypto
 */

int nx_debugfs_init(struct nx_crypto_driver *drv)
{
	struct nx_debugfs *dfs = &drv->dfs;

	dfs->dfs_root = debugfs_create_dir(NX_NAME, NULL);

	dfs->dfs_aes_ops =
		debugfs_create_u32("aes_ops",
				   S_IRUSR | S_IRGRP | S_IROTH,
				   dfs->dfs_root, (u32 *)&drv->stats.aes_ops);
	dfs->dfs_sha256_ops =
		debugfs_create_u32("sha256_ops",
				   S_IRUSR | S_IRGRP | S_IROTH,
				   dfs->dfs_root,
				   (u32 *)&drv->stats.sha256_ops);
	dfs->dfs_sha512_ops =
		debugfs_create_u32("sha512_ops",
				   S_IRUSR | S_IRGRP | S_IROTH,
				   dfs->dfs_root,
				   (u32 *)&drv->stats.sha512_ops);
	dfs->dfs_aes_bytes =
		debugfs_create_u64("aes_bytes",
				   S_IRUSR | S_IRGRP | S_IROTH,
				   dfs->dfs_root,
				   (u64 *)&drv->stats.aes_bytes);
	dfs->dfs_sha256_bytes =
		debugfs_create_u64("sha256_bytes",
				   S_IRUSR | S_IRGRP | S_IROTH,
				   dfs->dfs_root,
				   (u64 *)&drv->stats.sha256_bytes);
	dfs->dfs_sha512_bytes =
		debugfs_create_u64("sha512_bytes",
				   S_IRUSR | S_IRGRP | S_IROTH,
				   dfs->dfs_root,
				   (u64 *)&drv->stats.sha512_bytes);
	dfs->dfs_errors =
		debugfs_create_u32("errors",
				   S_IRUSR | S_IRGRP | S_IROTH,
				   dfs->dfs_root, (u32 *)&drv->stats.errors);
	dfs->dfs_last_error =
		debugfs_create_u32("last_error",
				   S_IRUSR | S_IRGRP | S_IROTH,
				   dfs->dfs_root,
				   (u32 *)&drv->stats.last_error);
	dfs->dfs_last_error_pid =
		debugfs_create_u32("last_error_pid",
				   S_IRUSR | S_IRGRP | S_IROTH,
				   dfs->dfs_root,
				   (u32 *)&drv->stats.last_error_pid);
	return 0;
}

void
nx_debugfs_fini(struct nx_crypto_driver *drv)
{
	debugfs_remove_recursive(drv->dfs.dfs_root);
}

#endif