// SPDX-License-Identifier: GPL-2.0
|
#include <linux/kernel.h>
|
#include <linux/module.h>
|
#include <linux/device.h>
|
#include <linux/netdevice.h>
|
|
#include <net/bonding.h>
|
#include <net/bond_alb.h>
|
|
#if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_NET_NS)
|
|
#include <linux/debugfs.h>
|
#include <linux/seq_file.h>
|
|
static struct dentry *bonding_debug_root;
|
|
/* Show RLB hash table */
|
static int bond_debug_rlb_hash_show(struct seq_file *m, void *v)
|
{
|
struct bonding *bond = m->private;
|
struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
|
struct rlb_client_info *client_info;
|
u32 hash_index;
|
|
if (BOND_MODE(bond) != BOND_MODE_ALB)
|
return 0;
|
|
seq_printf(m, "SourceIP DestinationIP "
|
"Destination MAC DEV\n");
|
|
spin_lock_bh(&bond->mode_lock);
|
|
hash_index = bond_info->rx_hashtbl_used_head;
|
for (; hash_index != RLB_NULL_INDEX;
|
hash_index = client_info->used_next) {
|
client_info = &(bond_info->rx_hashtbl[hash_index]);
|
seq_printf(m, "%-15pI4 %-15pI4 %-17pM %s\n",
|
&client_info->ip_src,
|
&client_info->ip_dst,
|
&client_info->mac_dst,
|
client_info->slave->dev->name);
|
}
|
|
spin_unlock_bh(&bond->mode_lock);
|
|
return 0;
|
}
|
|
static int bond_debug_rlb_hash_open(struct inode *inode, struct file *file)
|
{
|
return single_open(file, bond_debug_rlb_hash_show, inode->i_private);
|
}
|
|
static const struct file_operations bond_debug_rlb_hash_fops = {
|
.owner = THIS_MODULE,
|
.open = bond_debug_rlb_hash_open,
|
.read = seq_read,
|
.llseek = seq_lseek,
|
.release = single_release,
|
};
|
|
void bond_debug_register(struct bonding *bond)
|
{
|
if (!bonding_debug_root)
|
return;
|
|
bond->debug_dir =
|
debugfs_create_dir(bond->dev->name, bonding_debug_root);
|
|
if (!bond->debug_dir) {
|
netdev_warn(bond->dev, "failed to register to debugfs\n");
|
return;
|
}
|
|
debugfs_create_file("rlb_hash_table", 0400, bond->debug_dir,
|
bond, &bond_debug_rlb_hash_fops);
|
}
|
|
void bond_debug_unregister(struct bonding *bond)
|
{
|
if (!bonding_debug_root)
|
return;
|
|
debugfs_remove_recursive(bond->debug_dir);
|
}
|
|
void bond_debug_reregister(struct bonding *bond)
|
{
|
struct dentry *d;
|
|
if (!bonding_debug_root)
|
return;
|
|
d = debugfs_rename(bonding_debug_root, bond->debug_dir,
|
bonding_debug_root, bond->dev->name);
|
if (d) {
|
bond->debug_dir = d;
|
} else {
|
netdev_warn(bond->dev, "failed to reregister, so just unregister old one\n");
|
bond_debug_unregister(bond);
|
}
|
}
|
|
void bond_create_debugfs(void)
|
{
|
bonding_debug_root = debugfs_create_dir("bonding", NULL);
|
|
if (!bonding_debug_root) {
|
pr_warn("Warning: Cannot create bonding directory in debugfs\n");
|
}
|
}
|
|
void bond_destroy_debugfs(void)
|
{
|
debugfs_remove_recursive(bonding_debug_root);
|
bonding_debug_root = NULL;
|
}
|
|
|
#else /* !CONFIG_DEBUG_FS */
|
|
void bond_debug_register(struct bonding *bond)
|
{
|
}
|
|
void bond_debug_unregister(struct bonding *bond)
|
{
|
}
|
|
void bond_debug_reregister(struct bonding *bond)
|
{
|
}
|
|
void bond_create_debugfs(void)
|
{
|
}
|
|
void bond_destroy_debugfs(void)
|
{
|
}
|
|
#endif /* CONFIG_DEBUG_FS */
|
