projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| f073c7ca TI |
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" | |
| caafa842 | 7 | #include "bond_alb.h" |
| f073c7ca TI |
8 | |
| 9 | #ifdef CONFIG_DEBUG_FS | |
| 10 | ||
| 11 | #include <linux/debugfs.h> | |
| 12 | #include <linux/seq_file.h> | |
| 13 | ||
| 14 | static struct dentry *bonding_debug_root; | |
| 15 | ||
| caafa842 TI |
16 | /* |
| 17 | * Show RLB hash table | |
| 18 | */ | |
| 19 | static 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_head; | |
| 35 | for (; hash_index != RLB_NULL_INDEX; hash_index = client_info->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_ALB_INFO(bond).rx_hashtbl_lock)); | |
| 45 | ||
| 46 | return 0; | |
| 47 | } | |
| 48 | ||
| 49 | static int bond_debug_rlb_hash_open(struct inode *inode, struct file *file) | |
| 50 | { | |
| 51 | return single_open(file, bond_debug_rlb_hash_show, inode->i_private); | |
| 52 | } | |
| 53 | ||
| 54 | static const struct file_operations bond_debug_rlb_hash_fops = { | |
| 55 | .owner = THIS_MODULE, | |
| 56 | .open = bond_debug_rlb_hash_open, | |
| 57 | .read = seq_read, | |
| 58 | .llseek = seq_lseek, | |
| 59 | .release = single_release, | |
| 60 | }; | |
| 61 | ||
| f073c7ca TI |
62 | void bond_debug_register(struct bonding *bond) |
| 63 | { | |
| 64 | if (!bonding_debug_root) | |
| 65 | return; | |
| 66 | ||
| 67 | bond->debug_dir = | |
| 68 | debugfs_create_dir(bond->dev->name, bonding_debug_root); | |
| 69 | ||
| 70 | if (!bond->debug_dir) { | |
| 71 | pr_warning("%s: Warning: failed to register to debugfs\n", | |
| 72 | bond->dev->name); | |
| 73 | return; | |
| 74 | } | |
| caafa842 TI |
75 | |
| 76 | debugfs_create_file("rlb_hash_table", 0400, bond->debug_dir, | |
| 77 | bond, &bond_debug_rlb_hash_fops); | |
| f073c7ca TI |
78 | } |
| 79 | ||
| 80 | void bond_debug_unregister(struct bonding *bond) | |
| 81 | { | |
| 82 | if (!bonding_debug_root) | |
| 83 | return; | |
| 84 | ||
| 85 | debugfs_remove_recursive(bond->debug_dir); | |
| 86 | } | |
| 87 | ||
| 88 | void bond_debug_reregister(struct bonding *bond) | |
| 89 | { | |
| 90 | struct dentry *d; | |
| 91 | ||
| 92 | if (!bonding_debug_root) | |
| 93 | return; | |
| 94 | ||
| 95 | d = debugfs_rename(bonding_debug_root, bond->debug_dir, | |
| 96 | bonding_debug_root, bond->dev->name); | |
| 97 | if (d) { | |
| 98 | bond->debug_dir = d; | |
| 99 | } else { | |
| 100 | pr_warning("%s: Warning: failed to reregister, " | |
| 101 | "so just unregister old one\n", | |
| 102 | bond->dev->name); | |
| 103 | bond_debug_unregister(bond); | |
| 104 | } | |
| 105 | } | |
| 106 | ||
| 107 | void bond_create_debugfs(void) | |
| 108 | { | |
| 109 | bonding_debug_root = debugfs_create_dir("bonding", NULL); | |
| 110 | ||
| 111 | if (!bonding_debug_root) { | |
| 112 | pr_warning("Warning: Cannot create bonding directory" | |
| 113 | " in debugfs\n"); | |
| 114 | } | |
| 115 | } | |
| 116 | ||
| 117 | void bond_destroy_debugfs(void) | |
| 118 | { | |
| 119 | debugfs_remove_recursive(bonding_debug_root); | |
| 120 | bonding_debug_root = NULL; | |
| 121 | } | |
| 122 | ||
| 123 | ||
| 124 | #else /* !CONFIG_DEBUG_FS */ | |
| 125 | ||
| 126 | void bond_debug_register(struct bonding *bond) | |
| 127 | { | |
| 128 | } | |
| 129 | ||
| 130 | void bond_debug_unregister(struct bonding *bond) | |
| 131 | { | |
| 132 | } | |
| 133 | ||
| 134 | void bond_debug_reregister(struct bonding *bond) | |
| 135 | { | |
| 136 | } | |
| 137 | ||
| 138 | void bond_create_debugfs(void) | |
| 139 | { | |
| 140 | } | |
| 141 | ||
| 142 | void bond_destroy_debugfs(void) | |
| 143 | { | |
| 144 | } | |
| 145 | ||
| 146 | #endif /* CONFIG_DEBUG_FS */ |