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1// SPDX-License-Identifier: GPL-2.0
2#include <linux/kernel.h>
3#include <linux/module.h>
4#include <linux/device.h>
5#include <linux/netdevice.h>
6
7#include <net/bonding.h>
8#include <net/bond_alb.h>
9
10#if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_NET_NS)
11
12#include <linux/debugfs.h>
13#include <linux/seq_file.h>
14
15static struct dentry *bonding_debug_root;
16
17/* Show RLB hash table */
18static int bond_debug_rlb_hash_show(struct seq_file *m, void *v)
19{
20 struct bonding *bond = m->private;
21 struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
22 struct rlb_client_info *client_info;
23 u32 hash_index;
24
25 if (BOND_MODE(bond) != BOND_MODE_ALB)
26 return 0;
27
28 seq_printf(m, "SourceIP DestinationIP "
29 "Destination MAC DEV\n");
30
31 spin_lock_bh(&bond->mode_lock);
32
33 hash_index = bond_info->rx_hashtbl_used_head;
34 for (; hash_index != RLB_NULL_INDEX;
35 hash_index = client_info->used_next) {
36 client_info = &(bond_info->rx_hashtbl[hash_index]);
37 seq_printf(m, "%-15pI4 %-15pI4 %-17pM %s\n",
38 &client_info->ip_src,
39 &client_info->ip_dst,
40 &client_info->mac_dst,
41 client_info->slave->dev->name);
42 }
43
44 spin_unlock_bh(&bond->mode_lock);
45
46 return 0;
47}
48DEFINE_SHOW_ATTRIBUTE(bond_debug_rlb_hash);
49
50void bond_debug_register(struct bonding *bond)
51{
52 bond->debug_dir =
53 debugfs_create_dir(bond->dev->name, bonding_debug_root);
54
55 debugfs_create_file("rlb_hash_table", 0400, bond->debug_dir,
56 bond, &bond_debug_rlb_hash_fops);
57}
58
59void bond_debug_unregister(struct bonding *bond)
60{
61 debugfs_remove_recursive(bond->debug_dir);
62}
63
64void bond_debug_reregister(struct bonding *bond)
65{
66 struct dentry *d;
67
68 d = debugfs_rename(bonding_debug_root, bond->debug_dir,
69 bonding_debug_root, bond->dev->name);
70 if (!IS_ERR(d)) {
71 bond->debug_dir = d;
72 } else {
73 netdev_warn(bond->dev, "failed to reregister, so just unregister old one\n");
74 bond_debug_unregister(bond);
75 }
76}
77
78void __init bond_create_debugfs(void)
79{
80 bonding_debug_root = debugfs_create_dir("bonding", NULL);
81
82 if (IS_ERR(bonding_debug_root))
83 pr_warn("Warning: Cannot create bonding directory in debugfs\n");
84}
85
86void bond_destroy_debugfs(void)
87{
88 debugfs_remove_recursive(bonding_debug_root);
89 bonding_debug_root = NULL;
90}
91
92
93#else /* !CONFIG_DEBUG_FS */
94
95void bond_debug_register(struct bonding *bond)
96{
97}
98
99void bond_debug_unregister(struct bonding *bond)
100{
101}
102
103void bond_debug_reregister(struct bonding *bond)
104{
105}
106
107void __init bond_create_debugfs(void)
108{
109}
110
111void bond_destroy_debugfs(void)
112{
113}
114
115#endif /* CONFIG_DEBUG_FS */
1#include <linux/kernel.h>
2#include <linux/module.h>
3#include <linux/device.h>
4#include <linux/netdevice.h>
5
6#include "bonding.h"
7#include "bond_alb.h"
8
9#if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_NET_NS)
10
11#include <linux/debugfs.h>
12#include <linux/seq_file.h>
13
14static struct dentry *bonding_debug_root;
15
16/*
17 * Show RLB hash table
18 */
19static int bond_debug_rlb_hash_show(struct seq_file *m, void *v)
20{
21 struct bonding *bond = m->private;
22 struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
23 struct rlb_client_info *client_info;
24 u32 hash_index;
25
26 if (bond->params.mode != BOND_MODE_ALB)
27 return 0;
28
29 seq_printf(m, "SourceIP DestinationIP "
30 "Destination MAC DEV\n");
31
32 spin_lock_bh(&(BOND_ALB_INFO(bond).rx_hashtbl_lock));
33
34 hash_index = bond_info->rx_hashtbl_used_head;
35 for (; hash_index != RLB_NULL_INDEX;
36 hash_index = client_info->used_next) {
37 client_info = &(bond_info->rx_hashtbl[hash_index]);
38 seq_printf(m, "%-15pI4 %-15pI4 %-17pM %s\n",
39 &client_info->ip_src,
40 &client_info->ip_dst,
41 &client_info->mac_dst,
42 client_info->slave->dev->name);
43 }
44
45 spin_unlock_bh(&(BOND_ALB_INFO(bond).rx_hashtbl_lock));
46
47 return 0;
48}
49
50static int bond_debug_rlb_hash_open(struct inode *inode, struct file *file)
51{
52 return single_open(file, bond_debug_rlb_hash_show, inode->i_private);
53}
54
55static const struct file_operations bond_debug_rlb_hash_fops = {
56 .owner = THIS_MODULE,
57 .open = bond_debug_rlb_hash_open,
58 .read = seq_read,
59 .llseek = seq_lseek,
60 .release = single_release,
61};
62
63void bond_debug_register(struct bonding *bond)
64{
65 if (!bonding_debug_root)
66 return;
67
68 bond->debug_dir =
69 debugfs_create_dir(bond->dev->name, bonding_debug_root);
70
71 if (!bond->debug_dir) {
72 pr_warn("%s: Warning: failed to register to debugfs\n",
73 bond->dev->name);
74 return;
75 }
76
77 debugfs_create_file("rlb_hash_table", 0400, bond->debug_dir,
78 bond, &bond_debug_rlb_hash_fops);
79}
80
81void bond_debug_unregister(struct bonding *bond)
82{
83 if (!bonding_debug_root)
84 return;
85
86 debugfs_remove_recursive(bond->debug_dir);
87}
88
89void bond_debug_reregister(struct bonding *bond)
90{
91 struct dentry *d;
92
93 if (!bonding_debug_root)
94 return;
95
96 d = debugfs_rename(bonding_debug_root, bond->debug_dir,
97 bonding_debug_root, bond->dev->name);
98 if (d) {
99 bond->debug_dir = d;
100 } else {
101 pr_warn("%s: Warning: failed to reregister, so just unregister old one\n",
102 bond->dev->name);
103 bond_debug_unregister(bond);
104 }
105}
106
107void bond_create_debugfs(void)
108{
109 bonding_debug_root = debugfs_create_dir("bonding", NULL);
110
111 if (!bonding_debug_root) {
112 pr_warn("Warning: Cannot create bonding directory in debugfs\n");
113 }
114}
115
116void bond_destroy_debugfs(void)
117{
118 debugfs_remove_recursive(bonding_debug_root);
119 bonding_debug_root = NULL;
120}
121
122
123#else /* !CONFIG_DEBUG_FS */
124
125void bond_debug_register(struct bonding *bond)
126{
127}
128
129void bond_debug_unregister(struct bonding *bond)
130{
131}
132
133void bond_debug_reregister(struct bonding *bond)
134{
135}
136
137void bond_create_debugfs(void)
138{
139}
140
141void bond_destroy_debugfs(void)
142{
143}
144
145#endif /* CONFIG_DEBUG_FS */