linux-imx

/*

 * Copyright 2014 Cisco Systems, Inc.  All rights reserved.

 *

 * This program is free software; you may redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS

 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

 * SOFTWARE.

 */

​

#include <linux/module.h>

#include <linux/errno.h>

#include <linux/debugfs.h>

​

#include "snic.h"

​

/*

 * snic_debugfs_init - Initialize debugfs for snic debug logging

 *

 * Description:

 * When Debugfs is configured this routine sets up fnic debugfs

 * filesystem. If not already created. this routine will crate the

 * fnic directory and statistics directory for trace buffer and

 * stats logging

 */

void snic_debugfs_init(void)

{

    snic_glob->trc_root = debugfs_create_dir("snic", NULL);

​

    snic_glob->stats_root = debugfs_create_dir("statistics",

                           snic_glob->trc_root);

}

​

/*

 * snic_debugfs_term - Tear down debugfs intrastructure

 *

 * Description:

 * When Debufs is configured this routine removes debugfs file system

 * elements that are specific to snic

 */

void

snic_debugfs_term(void)

{

    debugfs_remove(snic_glob->stats_root);

    snic_glob->stats_root = NULL;

​

    debugfs_remove(snic_glob->trc_root);

    snic_glob->trc_root = NULL;

}

​

/*

 * snic_reset_stats_open - Open the reset_stats file

 */

static int

snic_reset_stats_open(struct inode *inode, struct file *filp)

{