drivers/crypto/nx/nx_debugfs.c

Source file repositories/reference/linux-study-clean/drivers/crypto/nx/nx_debugfs.c

File Facts

System
Linux kernel
Corpus path
drivers/crypto/nx/nx_debugfs.c
Extension
.c
Size
1876 bytes
Lines
67
Domain
Driver Families
Bucket
drivers/crypto
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * debugfs routines supporting the Power 7+ Nest Accelerators driver
 *
 * Copyright (C) 2011-2012 International Business Machines Inc.
 *
 * 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
 */

void nx_debugfs_init(struct nx_crypto_driver *drv)
{
	struct dentry *root;

	root = debugfs_create_dir(NX_NAME, NULL);
	drv->dfs_root = root;

	debugfs_create_u32("aes_ops", S_IRUSR | S_IRGRP | S_IROTH,
			   root, &drv->stats.aes_ops.counter);
	debugfs_create_u32("sha256_ops", S_IRUSR | S_IRGRP | S_IROTH,
			   root, &drv->stats.sha256_ops.counter);
	debugfs_create_u32("sha512_ops", S_IRUSR | S_IRGRP | S_IROTH,
			   root, &drv->stats.sha512_ops.counter);
	debugfs_create_u64("aes_bytes", S_IRUSR | S_IRGRP | S_IROTH,
			   root, &drv->stats.aes_bytes.counter);
	debugfs_create_u64("sha256_bytes", S_IRUSR | S_IRGRP | S_IROTH,
			   root, &drv->stats.sha256_bytes.counter);
	debugfs_create_u64("sha512_bytes", S_IRUSR | S_IRGRP | S_IROTH,
			   root, &drv->stats.sha512_bytes.counter);
	debugfs_create_u32("errors", S_IRUSR | S_IRGRP | S_IROTH,
			   root, &drv->stats.errors.counter);
	debugfs_create_u32("last_error", S_IRUSR | S_IRGRP | S_IROTH,
			   root, &drv->stats.last_error.counter);
	debugfs_create_u32("last_error_pid", S_IRUSR | S_IRGRP | S_IROTH,
			   root, &drv->stats.last_error_pid.counter);
}

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

#endif

Annotation

Implementation Notes