1 #include <linux/kernel.h>
2 #include <linux/module.h>
3 #include <linux/device.h>
4 #include <linux/netdevice.h>
6 #include <net/bonding.h>
7 #include <net/bond_alb.h>
9 #if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_NET_NS)
11 #include <linux/debugfs.h>
12 #include <linux/seq_file.h>
14 static struct dentry *bonding_debug_root;
16 /* Show RLB hash table */
17 static int bond_debug_rlb_hash_show(struct seq_file *m, void *v)
19 struct bonding *bond = m->private;
20 struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
21 struct rlb_client_info *client_info;
24 if (BOND_MODE(bond) != BOND_MODE_ALB)
27 seq_printf(m, "SourceIP DestinationIP "
28 "Destination MAC DEV\n");
30 spin_lock_bh(&bond->mode_lock);
32 hash_index = bond_info->rx_hashtbl_used_head;
33 for (; hash_index != RLB_NULL_INDEX;
34 hash_index = client_info->used_next) {
35 client_info = &(bond_info->rx_hashtbl[hash_index]);
36 seq_printf(m, "%-15pI4 %-15pI4 %-17pM %s\n",
39 &client_info->mac_dst,
40 client_info->slave->dev->name);
43 spin_unlock_bh(&bond->mode_lock);
48 static int bond_debug_rlb_hash_open(struct inode *inode, struct file *file)
50 return single_open(file, bond_debug_rlb_hash_show, inode->i_private);
53 static const struct file_operations bond_debug_rlb_hash_fops = {
55 .open = bond_debug_rlb_hash_open,
58 .release = single_release,
61 void bond_debug_register(struct bonding *bond)
63 if (!bonding_debug_root)
67 debugfs_create_dir(bond->dev->name, bonding_debug_root);
69 if (!bond->debug_dir) {
70 netdev_warn(bond->dev, "failed to register to debugfs\n");
74 debugfs_create_file("rlb_hash_table", 0400, bond->debug_dir,
75 bond, &bond_debug_rlb_hash_fops);
78 void bond_debug_unregister(struct bonding *bond)
80 if (!bonding_debug_root)
83 debugfs_remove_recursive(bond->debug_dir);
86 void bond_debug_reregister(struct bonding *bond)
90 if (!bonding_debug_root)
93 d = debugfs_rename(bonding_debug_root, bond->debug_dir,
94 bonding_debug_root, bond->dev->name);
98 netdev_warn(bond->dev, "failed to reregister, so just unregister old one\n");
99 bond_debug_unregister(bond);
103 void bond_create_debugfs(void)
105 bonding_debug_root = debugfs_create_dir("bonding", NULL);
107 if (!bonding_debug_root) {
108 pr_warn("Warning: Cannot create bonding directory in debugfs\n");
112 void bond_destroy_debugfs(void)
114 debugfs_remove_recursive(bonding_debug_root);
115 bonding_debug_root = NULL;
119 #else /* !CONFIG_DEBUG_FS */
121 void bond_debug_register(struct bonding *bond)
125 void bond_debug_unregister(struct bonding *bond)
129 void bond_debug_reregister(struct bonding *bond)
133 void bond_create_debugfs(void)
137 void bond_destroy_debugfs(void)
141 #endif /* CONFIG_DEBUG_FS */