linux/drivers/scsi/mpt3sas/mpt3sas_debugfs.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Debugfs interface Support for MPT (Message Passing Technology) based
 * controllers.
 *
 * Copyright (C) 2020  Broadcom Inc.
 *
 * Authors: Broadcom Inc.
 * Sreekanth Reddy  <[email protected]>
 * Suganath Prabu <[email protected]>
 *
 * Send feedback to : [email protected])
 *
 **/

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/compat.h>
#include <linux/uio.h>

#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include "mpt3sas_base.h"
#include <linux/debugfs.h>

static struct dentry *mpt3sas_debugfs_root;

/*
 * _debugfs_iocdump_read - copy ioc dump from debugfs buffer
 * @filep:	File Pointer
 * @ubuf:	Buffer to fill data
 * @cnt:	Length of the buffer
 * @ppos:	Offset in the file
 */

static ssize_t
_debugfs_iocdump_read(struct file *filp, char __user *ubuf, size_t cnt,
	loff_t *ppos)

{ … }

/*
 * _debugfs_iocdump_open :	open the ioc_dump debugfs attribute file
 */
static int
_debugfs_iocdump_open(struct inode *inode, struct file *file)
{ … }

/*
 * _debugfs_iocdump_release :	release the ioc_dump debugfs attribute
 * @inode: inode structure to the corresponds device
 * @file: File pointer
 */
static int
_debugfs_iocdump_release(struct inode *inode, struct file *file)
{ … }

static const struct file_operations mpt3sas_debugfs_iocdump_fops = …;

/*
 * mpt3sas_init_debugfs :	Create debugfs root for mpt3sas driver
 */
void mpt3sas_init_debugfs(void)
{ … }

/*
 * mpt3sas_exit_debugfs :	Remove debugfs root for mpt3sas driver
 */
void mpt3sas_exit_debugfs(void)
{ … }

/*
 * mpt3sas_setup_debugfs :	Setup debugfs per HBA adapter
 * ioc:				MPT3SAS_ADAPTER object
 */
void
mpt3sas_setup_debugfs(struct MPT3SAS_ADAPTER *ioc)
{ … }

/*
 * mpt3sas_destroy_debugfs :	Destroy debugfs per HBA adapter
 * @ioc:	MPT3SAS_ADAPTER object
 */
void mpt3sas_destroy_debugfs(struct MPT3SAS_ADAPTER *ioc)
{ … }