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3271273388
Fix the path of hsr debugfs root directory to use the net device name so that it can work with multiple interfaces. While at it, also fix some typos. Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
120 lines
3.2 KiB
C
120 lines
3.2 KiB
C
/*
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* hsr_debugfs code
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* Copyright (C) 2019 Texas Instruments Incorporated
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*
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* Author(s):
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* Murali Karicheri <m-karicheri2@ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/module.h>
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#include <linux/errno.h>
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#include <linux/debugfs.h>
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#include "hsr_main.h"
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#include "hsr_framereg.h"
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static void print_mac_address(struct seq_file *sfp, unsigned char *mac)
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{
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seq_printf(sfp, "%02x:%02x:%02x:%02x:%02x:%02x:",
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mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
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}
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/* hsr_node_table_show - Formats and prints node_table entries */
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static int
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hsr_node_table_show(struct seq_file *sfp, void *data)
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{
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struct hsr_priv *priv = (struct hsr_priv *)sfp->private;
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struct hsr_node *node;
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seq_puts(sfp, "Node Table entries\n");
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seq_puts(sfp, "MAC-Address-A, MAC-Address-B, time_in[A], ");
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seq_puts(sfp, "time_in[B], Address-B port\n");
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rcu_read_lock();
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list_for_each_entry_rcu(node, &priv->node_db, mac_list) {
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/* skip self node */
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if (hsr_addr_is_self(priv, node->macaddress_A))
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continue;
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print_mac_address(sfp, &node->macaddress_A[0]);
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seq_puts(sfp, " ");
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print_mac_address(sfp, &node->macaddress_B[0]);
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seq_printf(sfp, "0x%lx, ", node->time_in[HSR_PT_SLAVE_A]);
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seq_printf(sfp, "0x%lx ", node->time_in[HSR_PT_SLAVE_B]);
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seq_printf(sfp, "0x%x\n", node->addr_B_port);
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}
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rcu_read_unlock();
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return 0;
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}
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/* hsr_node_table_open - Open the node_table file
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*
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* Description:
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* This routine opens a debugfs file node_table of specific hsr device
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*/
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static int
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hsr_node_table_open(struct inode *inode, struct file *filp)
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{
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return single_open(filp, hsr_node_table_show, inode->i_private);
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}
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static const struct file_operations hsr_fops = {
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.owner = THIS_MODULE,
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.open = hsr_node_table_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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/* hsr_debugfs_init - create hsr node_table file for dumping
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* the node table
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*
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* Description:
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* When debugfs is configured this routine sets up the node_table file per
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* hsr device for dumping the node_table entries
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*/
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int hsr_debugfs_init(struct hsr_priv *priv, struct net_device *hsr_dev)
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{
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int rc = -1;
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struct dentry *de = NULL;
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de = debugfs_create_dir(hsr_dev->name, NULL);
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if (!de) {
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pr_err("Cannot create hsr debugfs root\n");
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return rc;
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}
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priv->node_tbl_root = de;
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de = debugfs_create_file("node_table", S_IFREG | 0444,
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priv->node_tbl_root, priv,
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&hsr_fops);
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if (!de) {
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pr_err("Cannot create hsr node_table directory\n");
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return rc;
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}
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priv->node_tbl_file = de;
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return 0;
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}
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/* hsr_debugfs_term - Tear down debugfs intrastructure
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*
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* Description:
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* When Debufs is configured this routine removes debugfs file system
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* elements that are specific to hsr
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*/
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void
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hsr_debugfs_term(struct hsr_priv *priv)
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{
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debugfs_remove(priv->node_tbl_file);
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priv->node_tbl_file = NULL;
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debugfs_remove(priv->node_tbl_root);
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priv->node_tbl_root = NULL;
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}
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