Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Bond several ethernet interfaces into a Cisco, running 'Etherchannel'. |
| 3 | * |
| 4 | * Portions are (c) Copyright 1995 Simon "Guru Aleph-Null" Janes |
| 5 | * NCM: Network and Communications Management, Inc. |
| 6 | * |
| 7 | * BUT, I'm the one who modified it for ethernet, so: |
| 8 | * (c) Copyright 1999, Thomas Davis, tadavis@lbl.gov |
| 9 | * |
| 10 | * This software may be used and distributed according to the terms |
| 11 | * of the GNU Public License, incorporated herein by reference. |
| 12 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | */ |
| 14 | |
| 15 | #ifndef _LINUX_BONDING_H |
| 16 | #define _LINUX_BONDING_H |
| 17 | |
| 18 | #include <linux/timer.h> |
| 19 | #include <linux/proc_fs.h> |
| 20 | #include <linux/if_bonding.h> |
Neil Horman | e843fa5 | 2010-10-13 16:01:50 +0000 | [diff] [blame] | 21 | #include <linux/cpumask.h> |
Brian Haley | 305d552 | 2008-11-04 17:51:14 -0800 | [diff] [blame] | 22 | #include <linux/in6.h> |
Amerigo Wang | 8a8efa2 | 2011-02-17 23:43:32 +0000 | [diff] [blame] | 23 | #include <linux/netpoll.h> |
Andy Gospodarek | eaddcd7 | 2012-03-22 16:14:29 +0000 | [diff] [blame] | 24 | #include <linux/inetdevice.h> |
zheng.li | 567b871 | 2012-11-27 23:57:04 +0000 | [diff] [blame] | 25 | #include <linux/etherdevice.h> |
Hannes Frederic Sowa | 809fa97 | 2014-01-22 02:29:41 +0100 | [diff] [blame] | 26 | #include <linux/reciprocal_div.h> |
| 27 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | #include "bond_3ad.h" |
| 29 | #include "bond_alb.h" |
Nikolay Aleksandrov | 0911736 | 2014-01-22 14:53:16 +0100 | [diff] [blame] | 30 | #include "bond_options.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | |
Ben Hutchings | ad246c9 | 2011-04-26 15:25:52 +0000 | [diff] [blame] | 32 | #define DRV_VERSION "3.7.1" |
| 33 | #define DRV_RELDATE "April 27, 2011" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | #define DRV_NAME "bonding" |
| 35 | #define DRV_DESCRIPTION "Ethernet Channel Bonding Driver" |
| 36 | |
Amerigo Wang | bd33acc | 2011-03-06 21:58:46 +0000 | [diff] [blame] | 37 | #define bond_version DRV_DESCRIPTION ": v" DRV_VERSION " (" DRV_RELDATE ")\n" |
| 38 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | #define BOND_MAX_ARP_TARGETS 16 |
| 40 | |
dingtianhong | fe9d04a | 2013-11-22 22:28:43 +0800 | [diff] [blame] | 41 | #define BOND_DEFAULT_MIIMON 100 |
| 42 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | #define IS_UP(dev) \ |
| 44 | ((((dev)->flags & IFF_UP) == IFF_UP) && \ |
| 45 | netif_running(dev) && \ |
| 46 | netif_carrier_ok(dev)) |
| 47 | |
| 48 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | * Checks whether slave is ready for transmit. |
| 50 | */ |
| 51 | #define SLAVE_IS_OK(slave) \ |
| 52 | (((slave)->dev->flags & IFF_UP) && \ |
| 53 | netif_running((slave)->dev) && \ |
| 54 | ((slave)->link == BOND_LINK_UP) && \ |
Jiri Pirko | e30bc06 | 2011-03-12 03:14:37 +0000 | [diff] [blame] | 55 | bond_is_active_slave(slave)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | |
Wang Weidong | f9de11a | 2013-11-15 10:34:30 -0500 | [diff] [blame] | 57 | #define IS_IP_TARGET_UNUSABLE_ADDRESS(a) \ |
| 58 | ((htonl(INADDR_BROADCAST) == a) || \ |
| 59 | ipv4_is_zeronet(a)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | /* |
| 61 | * Less bad way to call ioctl from within the kernel; this needs to be |
| 62 | * done some other way to get the call out of interrupt context. |
| 63 | * Needs "ioctl" variable to be supplied by calling context. |
| 64 | */ |
| 65 | #define IOCTL(dev, arg, cmd) ({ \ |
| 66 | int res = 0; \ |
| 67 | mm_segment_t fs = get_fs(); \ |
| 68 | set_fs(get_ds()); \ |
| 69 | res = ioctl(dev, arg, cmd); \ |
| 70 | set_fs(fs); \ |
| 71 | res; }) |
| 72 | |
Veaceslav Falico | 0184409 | 2014-05-15 21:39:55 +0200 | [diff] [blame^] | 73 | #define BOND_MODE(bond) ((bond)->params.mode) |
| 74 | |
nikolay@redhat.com | dec1e90 | 2013-08-01 16:54:47 +0200 | [diff] [blame] | 75 | /* slave list primitives */ |
Veaceslav Falico | 5a52405 | 2013-09-25 09:20:24 +0200 | [diff] [blame] | 76 | #define bond_slave_list(bond) (&(bond)->dev->adj_list.lower) |
| 77 | |
| 78 | #define bond_has_slaves(bond) !list_empty(bond_slave_list(bond)) |
Veaceslav Falico | 0965a1f | 2013-09-25 09:20:21 +0200 | [diff] [blame] | 79 | |
nikolay@redhat.com | dec1e90 | 2013-08-01 16:54:47 +0200 | [diff] [blame] | 80 | /* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */ |
| 81 | #define bond_first_slave(bond) \ |
Veaceslav Falico | 5a52405 | 2013-09-25 09:20:24 +0200 | [diff] [blame] | 82 | (bond_has_slaves(bond) ? \ |
| 83 | netdev_adjacent_get_private(bond_slave_list(bond)->next) : \ |
| 84 | NULL) |
nikolay@redhat.com | dec1e90 | 2013-08-01 16:54:47 +0200 | [diff] [blame] | 85 | #define bond_last_slave(bond) \ |
Veaceslav Falico | 5a52405 | 2013-09-25 09:20:24 +0200 | [diff] [blame] | 86 | (bond_has_slaves(bond) ? \ |
| 87 | netdev_adjacent_get_private(bond_slave_list(bond)->prev) : \ |
| 88 | NULL) |
nikolay@redhat.com | dec1e90 | 2013-08-01 16:54:47 +0200 | [diff] [blame] | 89 | |
dingtianhong | e001bfa | 2013-12-13 10:19:55 +0800 | [diff] [blame] | 90 | /* Caller must have rcu_read_lock */ |
| 91 | #define bond_first_slave_rcu(bond) \ |
| 92 | netdev_lower_get_first_private_rcu(bond->dev) |
| 93 | |
Veaceslav Falico | 5a52405 | 2013-09-25 09:20:24 +0200 | [diff] [blame] | 94 | #define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond)) |
| 95 | #define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond)) |
nikolay@redhat.com | dec1e90 | 2013-08-01 16:54:47 +0200 | [diff] [blame] | 96 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | /** |
nikolay@redhat.com | dec1e90 | 2013-08-01 16:54:47 +0200 | [diff] [blame] | 98 | * bond_for_each_slave - iterate over all slaves |
| 99 | * @bond: the bond holding this list |
| 100 | * @pos: current slave |
Veaceslav Falico | 9caff1e | 2013-09-25 09:20:14 +0200 | [diff] [blame] | 101 | * @iter: list_head * iterator |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | * |
| 103 | * Caller must hold bond->lock |
| 104 | */ |
Veaceslav Falico | 9caff1e | 2013-09-25 09:20:14 +0200 | [diff] [blame] | 105 | #define bond_for_each_slave(bond, pos, iter) \ |
| 106 | netdev_for_each_lower_private((bond)->dev, pos, iter) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | |
nikolay@redhat.com | 278b208 | 2013-08-01 16:54:51 +0200 | [diff] [blame] | 108 | /* Caller must have rcu_read_lock */ |
Veaceslav Falico | 9caff1e | 2013-09-25 09:20:14 +0200 | [diff] [blame] | 109 | #define bond_for_each_slave_rcu(bond, pos, iter) \ |
| 110 | netdev_for_each_lower_private_rcu((bond)->dev, pos, iter) |
nikolay@redhat.com | 278b208 | 2013-08-01 16:54:51 +0200 | [diff] [blame] | 111 | |
Neil Horman | e843fa5 | 2010-10-13 16:01:50 +0000 | [diff] [blame] | 112 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Neil Horman | fb4fa76 | 2010-12-06 09:05:50 +0000 | [diff] [blame] | 113 | extern atomic_t netpoll_block_tx; |
Neil Horman | e843fa5 | 2010-10-13 16:01:50 +0000 | [diff] [blame] | 114 | |
| 115 | static inline void block_netpoll_tx(void) |
| 116 | { |
Neil Horman | fb4fa76 | 2010-12-06 09:05:50 +0000 | [diff] [blame] | 117 | atomic_inc(&netpoll_block_tx); |
Neil Horman | e843fa5 | 2010-10-13 16:01:50 +0000 | [diff] [blame] | 118 | } |
| 119 | |
| 120 | static inline void unblock_netpoll_tx(void) |
| 121 | { |
Neil Horman | fb4fa76 | 2010-12-06 09:05:50 +0000 | [diff] [blame] | 122 | atomic_dec(&netpoll_block_tx); |
Neil Horman | e843fa5 | 2010-10-13 16:01:50 +0000 | [diff] [blame] | 123 | } |
| 124 | |
| 125 | static inline int is_netpoll_tx_blocked(struct net_device *dev) |
| 126 | { |
Amerigo Wang | 080e413 | 2011-02-17 23:43:33 +0000 | [diff] [blame] | 127 | if (unlikely(netpoll_tx_running(dev))) |
Neil Horman | fb4fa76 | 2010-12-06 09:05:50 +0000 | [diff] [blame] | 128 | return atomic_read(&netpoll_block_tx); |
Neil Horman | e843fa5 | 2010-10-13 16:01:50 +0000 | [diff] [blame] | 129 | return 0; |
| 130 | } |
| 131 | #else |
| 132 | #define block_netpoll_tx() |
| 133 | #define unblock_netpoll_tx() |
| 134 | #define is_netpoll_tx_blocked(dev) (0) |
| 135 | #endif |
| 136 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | struct bond_params { |
| 138 | int mode; |
Jay Vosburgh | 169a3e6 | 2005-06-26 17:54:11 -0400 | [diff] [blame] | 139 | int xmit_policy; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | int miimon; |
Ben Hutchings | ad246c9 | 2011-04-26 15:25:52 +0000 | [diff] [blame] | 141 | u8 num_peer_notif; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | int arp_interval; |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 143 | int arp_validate; |
Veaceslav Falico | 8599b52 | 2013-06-24 11:49:34 +0200 | [diff] [blame] | 144 | int arp_all_targets; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | int use_carrier; |
Jay Vosburgh | dd957c5 | 2007-10-09 19:57:24 -0700 | [diff] [blame] | 146 | int fail_over_mac; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | int updelay; |
| 148 | int downdelay; |
| 149 | int lacp_fast; |
stephen hemminger | 655f891 | 2011-06-22 09:54:39 +0000 | [diff] [blame] | 150 | unsigned int min_links; |
Jay Vosburgh | fd989c8 | 2008-11-04 17:51:16 -0800 | [diff] [blame] | 151 | int ad_select; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | char primary[IFNAMSIZ]; |
Jiri Pirko | a549952 | 2009-09-25 03:28:09 +0000 | [diff] [blame] | 153 | int primary_reselect; |
Al Viro | d3bb52b | 2007-08-22 20:06:58 -0400 | [diff] [blame] | 154 | __be32 arp_targets[BOND_MAX_ARP_TARGETS]; |
Andy Gospodarek | bb1d912 | 2010-06-02 08:40:18 +0000 | [diff] [blame] | 155 | int tx_queues; |
Andy Gospodarek | ebd8e49 | 2010-06-02 08:39:21 +0000 | [diff] [blame] | 156 | int all_slaves_active; |
Flavio Leitner | c2952c3 | 2010-10-05 14:23:59 +0000 | [diff] [blame] | 157 | int resend_igmp; |
Neil Horman | 7eacd03 | 2013-09-13 11:05:33 -0400 | [diff] [blame] | 158 | int lp_interval; |
Nikolay Aleksandrov | 7395832 | 2013-11-05 13:51:41 +0100 | [diff] [blame] | 159 | int packets_per_slave; |
Mahesh Bandewar | e9f0fb8 | 2014-04-22 16:30:22 -0700 | [diff] [blame] | 160 | int tlb_dynamic_lb; |
Hannes Frederic Sowa | 809fa97 | 2014-01-22 02:29:41 +0100 | [diff] [blame] | 161 | struct reciprocal_value reciprocal_packets_per_slave; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | }; |
| 163 | |
Mitch Williams | 12479f9 | 2005-11-09 10:35:44 -0800 | [diff] [blame] | 164 | struct bond_parm_tbl { |
| 165 | char *modename; |
| 166 | int mode; |
| 167 | }; |
| 168 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | struct slave { |
Mitch Williams | e944ef7 | 2005-11-09 10:36:50 -0800 | [diff] [blame] | 170 | struct net_device *dev; /* first - useful for panic debug */ |
Jiri Pirko | 35d4890 | 2011-03-22 02:38:12 +0000 | [diff] [blame] | 171 | struct bonding *bond; /* our master */ |
Jay Vosburgh | 8bb5f96 | 2006-09-22 21:52:51 -0700 | [diff] [blame] | 172 | int delay; |
Veaceslav Falico | 8e60346 | 2014-02-18 07:48:46 +0100 | [diff] [blame] | 173 | /* all three in jiffies */ |
| 174 | unsigned long last_link_up; |
Veaceslav Falico | 49f17de | 2014-02-18 07:48:47 +0100 | [diff] [blame] | 175 | unsigned long last_rx; |
Veaceslav Falico | 8599b52 | 2013-06-24 11:49:34 +0200 | [diff] [blame] | 176 | unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | s8 link; /* one of BOND_LINK_XXXX */ |
Jay Vosburgh | b2220ca | 2008-05-17 21:10:13 -0700 | [diff] [blame] | 178 | s8 new_link; |
Jiri Pirko | 2d7011c | 2011-03-16 08:46:43 +0000 | [diff] [blame] | 179 | u8 backup:1, /* indicates backup slave. Value corresponds with |
| 180 | BOND_STATE_ACTIVE and BOND_STATE_BACKUP */ |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 181 | inactive:1, /* indicates inactive slave */ |
| 182 | should_notify:1; /* indicateds whether the state changed */ |
David Decotigny | 5d30530 | 2011-04-13 15:22:31 +0000 | [diff] [blame] | 183 | u8 duplex; |
Moni Shoua | 3158bf7 | 2007-10-09 19:43:41 -0700 | [diff] [blame] | 184 | u32 original_mtu; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | u32 link_failure_count; |
David Decotigny | 5d30530 | 2011-04-13 15:22:31 +0000 | [diff] [blame] | 186 | u32 speed; |
Andy Gospodarek | bb1d912 | 2010-06-02 08:40:18 +0000 | [diff] [blame] | 187 | u16 queue_id; |
David Decotigny | 5d30530 | 2011-04-13 15:22:31 +0000 | [diff] [blame] | 188 | u8 perm_hwaddr[ETH_ALEN]; |
dingtianhong | 3fdddd8 | 2014-05-12 15:08:43 +0800 | [diff] [blame] | 189 | struct ad_slave_info *ad_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | struct tlb_slave_info tlb_info; |
Amerigo Wang | 8a8efa2 | 2011-02-17 23:43:32 +0000 | [diff] [blame] | 191 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 192 | struct netpoll *np; |
| 193 | #endif |
sfeldma@cumulusnetworks.com | 07699f9 | 2014-01-16 22:57:49 -0800 | [diff] [blame] | 194 | struct kobject kobj; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | }; |
| 196 | |
| 197 | /* |
Jay Vosburgh | b2220ca | 2008-05-17 21:10:13 -0700 | [diff] [blame] | 198 | * Link pseudo-state only used internally by monitors |
| 199 | */ |
| 200 | #define BOND_LINK_NOCHANGE -1 |
| 201 | |
| 202 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | * Here are the locking policies for the two bonding locks: |
| 204 | * |
| 205 | * 1) Get bond->lock when reading/writing slave list. |
| 206 | * 2) Get bond->curr_slave_lock when reading/writing bond->curr_active_slave. |
| 207 | * (It is unnecessary when the write-lock is put with bond->lock.) |
| 208 | * 3) When we lock with bond->curr_slave_lock, we must lock with bond->lock |
| 209 | * beforehand. |
| 210 | */ |
| 211 | struct bonding { |
Mitch Williams | e944ef7 | 2005-11-09 10:36:50 -0800 | [diff] [blame] | 212 | struct net_device *dev; /* first - useful for panic debug */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | struct slave *curr_active_slave; |
| 214 | struct slave *current_arp_slave; |
| 215 | struct slave *primary_slave; |
Jiri Pirko | a549952 | 2009-09-25 03:28:09 +0000 | [diff] [blame] | 216 | bool force_primary; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | s32 slave_cnt; /* never change this value outside the attach/detach wrappers */ |
Eric Dumazet | de063b7 | 2012-06-11 19:23:07 +0000 | [diff] [blame] | 218 | int (*recv_probe)(const struct sk_buff *, struct bonding *, |
| 219 | struct slave *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | rwlock_t lock; |
| 221 | rwlock_t curr_slave_lock; |
Ben Hutchings | ad246c9 | 2011-04-26 15:25:52 +0000 | [diff] [blame] | 222 | u8 send_peer_notif; |
Nikolay Aleksandrov | 4f5474e | 2013-06-12 00:07:02 +0200 | [diff] [blame] | 223 | u8 igmp_retrans; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | #ifdef CONFIG_PROC_FS |
| 225 | struct proc_dir_entry *proc_entry; |
| 226 | char proc_file_name[IFNAMSIZ]; |
| 227 | #endif /* CONFIG_PROC_FS */ |
| 228 | struct list_head bond_list; |
Nikolay Aleksandrov | 7395832 | 2013-11-05 13:51:41 +0100 | [diff] [blame] | 229 | u32 rr_tx_counter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | struct ad_bond_info ad_info; |
| 231 | struct alb_bond_info alb_info; |
| 232 | struct bond_params params; |
Jay Vosburgh | 1b76b31 | 2007-10-17 17:37:45 -0700 | [diff] [blame] | 233 | struct workqueue_struct *wq; |
| 234 | struct delayed_work mii_work; |
| 235 | struct delayed_work arp_work; |
| 236 | struct delayed_work alb_work; |
| 237 | struct delayed_work ad_work; |
Flavio Leitner | 5a37e8c | 2010-10-05 14:23:57 +0000 | [diff] [blame] | 238 | struct delayed_work mcast_work; |
Taku Izumi | f073c7c | 2010-12-09 15:17:13 +0000 | [diff] [blame] | 239 | #ifdef CONFIG_DEBUG_FS |
Masanari Iida | 02582e9 | 2012-08-22 19:11:26 +0900 | [diff] [blame] | 240 | /* debugging support via debugfs */ |
Taku Izumi | f073c7c | 2010-12-09 15:17:13 +0000 | [diff] [blame] | 241 | struct dentry *debug_dir; |
| 242 | #endif /* CONFIG_DEBUG_FS */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | }; |
| 244 | |
Jiri Pirko | f1c1775 | 2011-03-12 03:14:35 +0000 | [diff] [blame] | 245 | #define bond_slave_get_rcu(dev) \ |
| 246 | ((struct slave *) rcu_dereference(dev->rx_handler_data)) |
| 247 | |
Jiri Pirko | 471cb5a | 2013-01-03 22:49:01 +0000 | [diff] [blame] | 248 | #define bond_slave_get_rtnl(dev) \ |
| 249 | ((struct slave *) rtnl_dereference(dev->rx_handler_data)) |
| 250 | |
dingtianhong | fbd929f | 2014-03-25 17:44:43 +0800 | [diff] [blame] | 251 | struct bond_vlan_tag { |
| 252 | __be16 vlan_proto; |
| 253 | unsigned short vlan_id; |
| 254 | }; |
| 255 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | /** |
| 257 | * Returns NULL if the net_device does not belong to any of the bond's slaves |
| 258 | * |
| 259 | * Caller must hold bond lock for read |
| 260 | */ |
stephen hemminger | 4ec952b | 2011-02-23 07:40:33 +0000 | [diff] [blame] | 261 | static inline struct slave *bond_get_slave_by_dev(struct bonding *bond, |
| 262 | struct net_device *slave_dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | { |
Veaceslav Falico | 46bb480 | 2013-09-25 09:20:11 +0200 | [diff] [blame] | 264 | return netdev_lower_dev_get_private(bond->dev, slave_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | } |
| 266 | |
Adrian Bunk | cceb904 | 2006-01-05 22:45:42 -0800 | [diff] [blame] | 267 | static inline struct bonding *bond_get_bond_by_slave(struct slave *slave) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | { |
Jiri Pirko | 471cb5a | 2013-01-03 22:49:01 +0000 | [diff] [blame] | 269 | if (!slave || !slave->bond) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | return NULL; |
Jiri Pirko | 471cb5a | 2013-01-03 22:49:01 +0000 | [diff] [blame] | 271 | return slave->bond; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | } |
| 273 | |
Veaceslav Falico | d1e2e5c | 2014-05-15 21:39:52 +0200 | [diff] [blame] | 274 | static inline bool bond_should_override_tx_queue(struct bonding *bond) |
| 275 | { |
Veaceslav Falico | 0184409 | 2014-05-15 21:39:55 +0200 | [diff] [blame^] | 276 | return BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP || |
| 277 | BOND_MODE(bond) == BOND_MODE_ROUNDROBIN; |
Veaceslav Falico | d1e2e5c | 2014-05-15 21:39:52 +0200 | [diff] [blame] | 278 | } |
| 279 | |
Holger Eitzenberger | 5840205 | 2008-12-09 23:07:13 -0800 | [diff] [blame] | 280 | static inline bool bond_is_lb(const struct bonding *bond) |
| 281 | { |
Veaceslav Falico | 0184409 | 2014-05-15 21:39:55 +0200 | [diff] [blame^] | 282 | return BOND_MODE(bond) == BOND_MODE_TLB || |
| 283 | BOND_MODE(bond) == BOND_MODE_ALB; |
Holger Eitzenberger | 5840205 | 2008-12-09 23:07:13 -0800 | [diff] [blame] | 284 | } |
| 285 | |
Veaceslav Falico | 267bed7 | 2014-05-15 21:39:53 +0200 | [diff] [blame] | 286 | static inline bool bond_mode_uses_arp(int mode) |
| 287 | { |
| 288 | return mode != BOND_MODE_8023AD && mode != BOND_MODE_TLB && |
| 289 | mode != BOND_MODE_ALB; |
| 290 | } |
| 291 | |
Veaceslav Falico | ec0865a | 2014-05-15 21:39:54 +0200 | [diff] [blame] | 292 | static inline bool bond_mode_uses_primary(int mode) |
| 293 | { |
| 294 | return mode == BOND_MODE_ACTIVEBACKUP || mode == BOND_MODE_TLB || |
| 295 | mode == BOND_MODE_ALB; |
| 296 | } |
| 297 | |
| 298 | static inline bool bond_uses_primary(struct bonding *bond) |
| 299 | { |
Veaceslav Falico | 0184409 | 2014-05-15 21:39:55 +0200 | [diff] [blame^] | 300 | return bond_mode_uses_primary(BOND_MODE(bond)); |
Veaceslav Falico | ec0865a | 2014-05-15 21:39:54 +0200 | [diff] [blame] | 301 | } |
| 302 | |
Jiri Pirko | e30bc06 | 2011-03-12 03:14:37 +0000 | [diff] [blame] | 303 | static inline void bond_set_active_slave(struct slave *slave) |
| 304 | { |
sfeldma@cumulusnetworks.com | 1d3ee88 | 2014-01-16 22:57:56 -0800 | [diff] [blame] | 305 | if (slave->backup) { |
| 306 | slave->backup = 0; |
Veaceslav Falico | 072256d | 2014-03-06 15:33:22 +0100 | [diff] [blame] | 307 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
sfeldma@cumulusnetworks.com | 1d3ee88 | 2014-01-16 22:57:56 -0800 | [diff] [blame] | 308 | } |
Jiri Pirko | e30bc06 | 2011-03-12 03:14:37 +0000 | [diff] [blame] | 309 | } |
| 310 | |
| 311 | static inline void bond_set_backup_slave(struct slave *slave) |
| 312 | { |
sfeldma@cumulusnetworks.com | 1d3ee88 | 2014-01-16 22:57:56 -0800 | [diff] [blame] | 313 | if (!slave->backup) { |
| 314 | slave->backup = 1; |
Veaceslav Falico | 072256d | 2014-03-06 15:33:22 +0100 | [diff] [blame] | 315 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
sfeldma@cumulusnetworks.com | 1d3ee88 | 2014-01-16 22:57:56 -0800 | [diff] [blame] | 316 | } |
Jiri Pirko | e30bc06 | 2011-03-12 03:14:37 +0000 | [diff] [blame] | 317 | } |
| 318 | |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 319 | static inline void bond_set_slave_state(struct slave *slave, |
| 320 | int slave_state, bool notify) |
| 321 | { |
| 322 | if (slave->backup == slave_state) |
| 323 | return; |
| 324 | |
| 325 | slave->backup = slave_state; |
| 326 | if (notify) { |
Veaceslav Falico | 072256d | 2014-03-06 15:33:22 +0100 | [diff] [blame] | 327 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 328 | slave->should_notify = 0; |
| 329 | } else { |
| 330 | if (slave->should_notify) |
| 331 | slave->should_notify = 0; |
| 332 | else |
| 333 | slave->should_notify = 1; |
| 334 | } |
| 335 | } |
| 336 | |
Ding Tianhong | 6fde8f0 | 2014-01-28 11:48:53 +0800 | [diff] [blame] | 337 | static inline void bond_slave_state_change(struct bonding *bond) |
| 338 | { |
| 339 | struct list_head *iter; |
| 340 | struct slave *tmp; |
| 341 | |
| 342 | bond_for_each_slave(bond, tmp, iter) { |
| 343 | if (tmp->link == BOND_LINK_UP) |
| 344 | bond_set_active_slave(tmp); |
| 345 | else if (tmp->link == BOND_LINK_DOWN) |
| 346 | bond_set_backup_slave(tmp); |
| 347 | } |
| 348 | } |
| 349 | |
dingtianhong | b092991 | 2014-02-26 11:05:23 +0800 | [diff] [blame] | 350 | static inline void bond_slave_state_notify(struct bonding *bond) |
| 351 | { |
| 352 | struct list_head *iter; |
| 353 | struct slave *tmp; |
| 354 | |
| 355 | bond_for_each_slave(bond, tmp, iter) { |
| 356 | if (tmp->should_notify) { |
Veaceslav Falico | 072256d | 2014-03-06 15:33:22 +0100 | [diff] [blame] | 357 | rtmsg_ifinfo(RTM_NEWLINK, tmp->dev, 0, GFP_ATOMIC); |
dingtianhong | b092991 | 2014-02-26 11:05:23 +0800 | [diff] [blame] | 358 | tmp->should_notify = 0; |
| 359 | } |
| 360 | } |
| 361 | } |
| 362 | |
Jiri Pirko | e30bc06 | 2011-03-12 03:14:37 +0000 | [diff] [blame] | 363 | static inline int bond_slave_state(struct slave *slave) |
| 364 | { |
| 365 | return slave->backup; |
| 366 | } |
| 367 | |
| 368 | static inline bool bond_is_active_slave(struct slave *slave) |
| 369 | { |
| 370 | return !bond_slave_state(slave); |
| 371 | } |
| 372 | |
Jiri Pirko | a549952 | 2009-09-25 03:28:09 +0000 | [diff] [blame] | 373 | #define BOND_PRI_RESELECT_ALWAYS 0 |
| 374 | #define BOND_PRI_RESELECT_BETTER 1 |
| 375 | #define BOND_PRI_RESELECT_FAILURE 2 |
| 376 | |
Jay Vosburgh | 3915c1e8 | 2008-05-17 21:10:14 -0700 | [diff] [blame] | 377 | #define BOND_FOM_NONE 0 |
| 378 | #define BOND_FOM_ACTIVE 1 |
| 379 | #define BOND_FOM_FOLLOW 2 |
| 380 | |
Veaceslav Falico | 8599b52 | 2013-06-24 11:49:34 +0200 | [diff] [blame] | 381 | #define BOND_ARP_TARGETS_ANY 0 |
| 382 | #define BOND_ARP_TARGETS_ALL 1 |
| 383 | |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 384 | #define BOND_ARP_VALIDATE_NONE 0 |
| 385 | #define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE) |
| 386 | #define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP) |
| 387 | #define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \ |
| 388 | BOND_ARP_VALIDATE_BACKUP) |
Veaceslav Falico | 896149f | 2014-02-18 07:48:40 +0100 | [diff] [blame] | 389 | #define BOND_ARP_FILTER (BOND_ARP_VALIDATE_ALL + 1) |
| 390 | #define BOND_ARP_FILTER_ACTIVE (BOND_ARP_VALIDATE_ACTIVE | \ |
| 391 | BOND_ARP_FILTER) |
| 392 | #define BOND_ARP_FILTER_BACKUP (BOND_ARP_VALIDATE_BACKUP | \ |
| 393 | BOND_ARP_FILTER) |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 394 | |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 395 | #define BOND_SLAVE_NOTIFY_NOW true |
| 396 | #define BOND_SLAVE_NOTIFY_LATER false |
| 397 | |
Adrian Bunk | 079ca7d | 2006-12-12 17:24:39 +0100 | [diff] [blame] | 398 | static inline int slave_do_arp_validate(struct bonding *bond, |
| 399 | struct slave *slave) |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 400 | { |
Jiri Pirko | e30bc06 | 2011-03-12 03:14:37 +0000 | [diff] [blame] | 401 | return bond->params.arp_validate & (1 << bond_slave_state(slave)); |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 402 | } |
| 403 | |
dingtianhong | bedabf9 | 2014-05-07 22:10:20 +0800 | [diff] [blame] | 404 | static inline int slave_do_arp_validate_only(struct bonding *bond) |
Veaceslav Falico | 896149f | 2014-02-18 07:48:40 +0100 | [diff] [blame] | 405 | { |
| 406 | return bond->params.arp_validate & BOND_ARP_FILTER; |
| 407 | } |
| 408 | |
Veaceslav Falico | 8599b52 | 2013-06-24 11:49:34 +0200 | [diff] [blame] | 409 | /* Get the oldest arp which we've received on this slave for bond's |
| 410 | * arp_targets. |
| 411 | */ |
| 412 | static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond, |
| 413 | struct slave *slave) |
| 414 | { |
| 415 | int i = 1; |
| 416 | unsigned long ret = slave->target_last_arp_rx[0]; |
| 417 | |
| 418 | for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++) |
| 419 | if (time_before(slave->target_last_arp_rx[i], ret)) |
| 420 | ret = slave->target_last_arp_rx[i]; |
| 421 | |
| 422 | return ret; |
| 423 | } |
| 424 | |
Adrian Bunk | 079ca7d | 2006-12-12 17:24:39 +0100 | [diff] [blame] | 425 | static inline unsigned long slave_last_rx(struct bonding *bond, |
Andy Gospodarek | f8a8ccd | 2007-01-29 12:08:38 -0800 | [diff] [blame] | 426 | struct slave *slave) |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 427 | { |
Veaceslav Falico | 9f24273 | 2014-02-18 07:48:43 +0100 | [diff] [blame] | 428 | if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL) |
| 429 | return slave_oldest_target_arp_rx(bond, slave); |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 430 | |
Veaceslav Falico | 49f17de | 2014-02-18 07:48:47 +0100 | [diff] [blame] | 431 | return slave->last_rx; |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 432 | } |
| 433 | |
Amerigo Wang | 8a8efa2 | 2011-02-17 23:43:32 +0000 | [diff] [blame] | 434 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 435 | static inline void bond_netpoll_send_skb(const struct slave *slave, |
| 436 | struct sk_buff *skb) |
| 437 | { |
| 438 | struct netpoll *np = slave->np; |
| 439 | |
| 440 | if (np) |
| 441 | netpoll_send_skb(np, skb); |
| 442 | } |
| 443 | #else |
| 444 | static inline void bond_netpoll_send_skb(const struct slave *slave, |
| 445 | struct sk_buff *skb) |
| 446 | { |
| 447 | } |
| 448 | #endif |
| 449 | |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 450 | static inline void bond_set_slave_inactive_flags(struct slave *slave, |
| 451 | bool notify) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | { |
Jiri Pirko | 471cb5a | 2013-01-03 22:49:01 +0000 | [diff] [blame] | 453 | if (!bond_is_lb(slave->bond)) |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 454 | bond_set_slave_state(slave, BOND_STATE_BACKUP, notify); |
Jiri Pirko | 471cb5a | 2013-01-03 22:49:01 +0000 | [diff] [blame] | 455 | if (!slave->bond->params.all_slaves_active) |
Jiri Pirko | 2d7011c | 2011-03-16 08:46:43 +0000 | [diff] [blame] | 456 | slave->inactive = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | } |
| 458 | |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 459 | static inline void bond_set_slave_active_flags(struct slave *slave, |
| 460 | bool notify) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | { |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 462 | bond_set_slave_state(slave, BOND_STATE_ACTIVE, notify); |
Jiri Pirko | 2d7011c | 2011-03-16 08:46:43 +0000 | [diff] [blame] | 463 | slave->inactive = 0; |
| 464 | } |
| 465 | |
| 466 | static inline bool bond_is_slave_inactive(struct slave *slave) |
| 467 | { |
| 468 | return slave->inactive; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | } |
| 470 | |
Andy Gospodarek | eaddcd7 | 2012-03-22 16:14:29 +0000 | [diff] [blame] | 471 | static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local) |
| 472 | { |
| 473 | struct in_device *in_dev; |
| 474 | __be32 addr = 0; |
| 475 | |
| 476 | rcu_read_lock(); |
| 477 | in_dev = __in_dev_get_rcu(dev); |
| 478 | |
| 479 | if (in_dev) |
Nicolas Dichtel | b601fa1 | 2013-12-10 15:02:40 +0100 | [diff] [blame] | 480 | addr = inet_confirm_addr(dev_net(dev), in_dev, dst, local, |
| 481 | RT_SCOPE_HOST); |
Andy Gospodarek | eaddcd7 | 2012-03-22 16:14:29 +0000 | [diff] [blame] | 482 | rcu_read_unlock(); |
| 483 | return addr; |
| 484 | } |
| 485 | |
Nikolay Aleksandrov | 1507722 | 2013-08-01 16:54:50 +0200 | [diff] [blame] | 486 | static inline bool slave_can_tx(struct slave *slave) |
| 487 | { |
| 488 | if (IS_UP(slave->dev) && slave->link == BOND_LINK_UP && |
| 489 | bond_is_active_slave(slave)) |
| 490 | return true; |
| 491 | else |
| 492 | return false; |
| 493 | } |
| 494 | |
dingtianhong | 3192432 | 2014-05-07 22:10:19 +0800 | [diff] [blame] | 495 | struct bond_net { |
| 496 | struct net *net; /* Associated network namespace */ |
| 497 | struct list_head dev_list; |
| 498 | #ifdef CONFIG_PROC_FS |
| 499 | struct proc_dir_entry *proc_dir; |
| 500 | #endif |
| 501 | struct class_attribute class_attr_bonding_masters; |
| 502 | }; |
Eric W. Biederman | 4c22400 | 2011-10-12 21:56:25 +0000 | [diff] [blame] | 503 | |
nikolay@redhat.com | 5bb9e0b | 2013-09-07 00:00:26 +0200 | [diff] [blame] | 504 | int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave); |
dingtianhong | d316ded | 2014-01-02 09:13:09 +0800 | [diff] [blame] | 505 | void bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev); |
Eric W. Biederman | ec87fd3 | 2009-10-29 14:18:26 +0000 | [diff] [blame] | 506 | int bond_create(struct net *net, const char *name); |
Eric W. Biederman | 4c22400 | 2011-10-12 21:56:25 +0000 | [diff] [blame] | 507 | int bond_create_sysfs(struct bond_net *net); |
| 508 | void bond_destroy_sysfs(struct bond_net *net); |
Eric W. Biederman | 6151b3d | 2009-10-29 14:18:22 +0000 | [diff] [blame] | 509 | void bond_prepare_sysfs_group(struct bonding *bond); |
sfeldma@cumulusnetworks.com | 07699f9 | 2014-01-16 22:57:49 -0800 | [diff] [blame] | 510 | int bond_sysfs_slave_add(struct slave *slave); |
| 511 | void bond_sysfs_slave_del(struct slave *slave); |
Mitch Williams | a77b532 | 2005-11-09 10:35:51 -0800 | [diff] [blame] | 512 | int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev); |
| 513 | int bond_release(struct net_device *bond_dev, struct net_device *slave_dev); |
Mahesh Bandewar | ee62e86 | 2014-04-22 16:30:15 -0700 | [diff] [blame] | 514 | u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb); |
Mitch Williams | a77b532 | 2005-11-09 10:35:51 -0800 | [diff] [blame] | 515 | void bond_select_active_slave(struct bonding *bond); |
| 516 | void bond_change_active_slave(struct bonding *bond, struct slave *new_active); |
Taku Izumi | f073c7c | 2010-12-09 15:17:13 +0000 | [diff] [blame] | 517 | void bond_create_debugfs(void); |
| 518 | void bond_destroy_debugfs(void); |
| 519 | void bond_debug_register(struct bonding *bond); |
| 520 | void bond_debug_unregister(struct bonding *bond); |
| 521 | void bond_debug_reregister(struct bonding *bond); |
David Decotigny | d30ee67 | 2011-04-13 15:22:29 +0000 | [diff] [blame] | 522 | const char *bond_mode_name(int mode); |
Jiri Pirko | 0a2a78c | 2013-10-18 17:43:33 +0200 | [diff] [blame] | 523 | void bond_setup(struct net_device *bond_dev); |
| 524 | unsigned int bond_get_num_tx_queues(void); |
| 525 | int bond_netlink_init(void); |
| 526 | void bond_netlink_fini(void); |
Jiri Pirko | 752d48b | 2013-10-18 17:43:37 +0200 | [diff] [blame] | 527 | struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond); |
| 528 | struct net_device *bond_option_active_slave_get(struct bonding *bond); |
sfeldma@cumulusnetworks.com | 07699f9 | 2014-01-16 22:57:49 -0800 | [diff] [blame] | 529 | const char *bond_slave_link_status(s8 link); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 530 | |
Amerigo Wang | bd33acc | 2011-03-06 21:58:46 +0000 | [diff] [blame] | 531 | #ifdef CONFIG_PROC_FS |
| 532 | void bond_create_proc_entry(struct bonding *bond); |
| 533 | void bond_remove_proc_entry(struct bonding *bond); |
| 534 | void bond_create_proc_dir(struct bond_net *bn); |
| 535 | void bond_destroy_proc_dir(struct bond_net *bn); |
| 536 | #else |
| 537 | static inline void bond_create_proc_entry(struct bonding *bond) |
| 538 | { |
| 539 | } |
| 540 | |
| 541 | static inline void bond_remove_proc_entry(struct bonding *bond) |
| 542 | { |
| 543 | } |
| 544 | |
| 545 | static inline void bond_create_proc_dir(struct bond_net *bn) |
| 546 | { |
| 547 | } |
| 548 | |
| 549 | static inline void bond_destroy_proc_dir(struct bond_net *bn) |
| 550 | { |
| 551 | } |
| 552 | #endif |
| 553 | |
zheng.li | 567b871 | 2012-11-27 23:57:04 +0000 | [diff] [blame] | 554 | static inline struct slave *bond_slave_has_mac(struct bonding *bond, |
| 555 | const u8 *mac) |
| 556 | { |
Veaceslav Falico | 9caff1e | 2013-09-25 09:20:14 +0200 | [diff] [blame] | 557 | struct list_head *iter; |
zheng.li | 567b871 | 2012-11-27 23:57:04 +0000 | [diff] [blame] | 558 | struct slave *tmp; |
| 559 | |
Veaceslav Falico | 9caff1e | 2013-09-25 09:20:14 +0200 | [diff] [blame] | 560 | bond_for_each_slave(bond, tmp, iter) |
zheng.li | 567b871 | 2012-11-27 23:57:04 +0000 | [diff] [blame] | 561 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) |
| 562 | return tmp; |
| 563 | |
| 564 | return NULL; |
| 565 | } |
Amerigo Wang | bd33acc | 2011-03-06 21:58:46 +0000 | [diff] [blame] | 566 | |
dingtianhong | 28c7192 | 2013-10-15 16:28:39 +0800 | [diff] [blame] | 567 | /* Caller must hold rcu_read_lock() for read */ |
| 568 | static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond, |
| 569 | const u8 *mac) |
| 570 | { |
| 571 | struct list_head *iter; |
| 572 | struct slave *tmp; |
| 573 | |
| 574 | bond_for_each_slave_rcu(bond, tmp, iter) |
| 575 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) |
| 576 | return tmp; |
| 577 | |
| 578 | return NULL; |
| 579 | } |
| 580 | |
Veaceslav Falico | 87a7b84 | 2013-06-24 11:49:29 +0200 | [diff] [blame] | 581 | /* Check if the ip is present in arp ip list, or first free slot if ip == 0 |
| 582 | * Returns -1 if not found, index if found |
| 583 | */ |
| 584 | static inline int bond_get_targets_ip(__be32 *targets, __be32 ip) |
| 585 | { |
| 586 | int i; |
| 587 | |
| 588 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) |
| 589 | if (targets[i] == ip) |
| 590 | return i; |
| 591 | else if (targets[i] == 0) |
| 592 | break; |
| 593 | |
| 594 | return -1; |
| 595 | } |
| 596 | |
Ben Dooks | b225967 | 2008-09-14 16:56:12 +0100 | [diff] [blame] | 597 | /* exported from bond_main.c */ |
Eric W. Biederman | ec87fd3 | 2009-10-29 14:18:26 +0000 | [diff] [blame] | 598 | extern int bond_net_id; |
Holger Eitzenberger | e97fd7c | 2008-12-09 23:10:38 -0800 | [diff] [blame] | 599 | extern const struct bond_parm_tbl bond_lacp_tbl[]; |
Holger Eitzenberger | e97fd7c | 2008-12-09 23:10:38 -0800 | [diff] [blame] | 600 | extern const struct bond_parm_tbl xmit_hashtype_tbl[]; |
| 601 | extern const struct bond_parm_tbl arp_validate_tbl[]; |
Veaceslav Falico | 8599b52 | 2013-06-24 11:49:34 +0200 | [diff] [blame] | 602 | extern const struct bond_parm_tbl arp_all_targets_tbl[]; |
Holger Eitzenberger | e97fd7c | 2008-12-09 23:10:38 -0800 | [diff] [blame] | 603 | extern const struct bond_parm_tbl fail_over_mac_tbl[]; |
Jiri Pirko | a549952 | 2009-09-25 03:28:09 +0000 | [diff] [blame] | 604 | extern const struct bond_parm_tbl pri_reselect_tbl[]; |
Hannes Eder | b06715b | 2008-12-25 23:58:57 -0800 | [diff] [blame] | 605 | extern struct bond_parm_tbl ad_select_tbl[]; |
| 606 | |
Jiri Pirko | 0a2a78c | 2013-10-18 17:43:33 +0200 | [diff] [blame] | 607 | /* exported from bond_netlink.c */ |
| 608 | extern struct rtnl_link_ops bond_link_ops; |
| 609 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 610 | #endif /* _LINUX_BONDING_H */ |