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 | |
David S. Miller | 1ef8019 | 2014-11-10 13:27:49 -0500 | [diff] [blame] | 15 | #ifndef _NET_BONDING_H |
| 16 | #define _NET_BONDING_H |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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> |
Andy Gospodarek | 5f0c5f7 | 2014-09-28 22:34:37 -0400 | [diff] [blame] | 27 | #include <linux/if_link.h> |
Hannes Frederic Sowa | 809fa97 | 2014-01-22 02:29:41 +0100 | [diff] [blame] | 28 | |
David S. Miller | 1ef8019 | 2014-11-10 13:27:49 -0500 | [diff] [blame] | 29 | #include <net/bond_3ad.h> |
| 30 | #include <net/bond_alb.h> |
| 31 | #include <net/bond_options.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #define BOND_MAX_ARP_TARGETS 16 |
| 34 | |
dingtianhong | fe9d04a | 2013-11-22 22:28:43 +0800 | [diff] [blame] | 35 | #define BOND_DEFAULT_MIIMON 100 |
| 36 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | * Less bad way to call ioctl from within the kernel; this needs to be |
| 39 | * done some other way to get the call out of interrupt context. |
| 40 | * Needs "ioctl" variable to be supplied by calling context. |
| 41 | */ |
| 42 | #define IOCTL(dev, arg, cmd) ({ \ |
| 43 | int res = 0; \ |
| 44 | mm_segment_t fs = get_fs(); \ |
| 45 | set_fs(get_ds()); \ |
| 46 | res = ioctl(dev, arg, cmd); \ |
| 47 | set_fs(fs); \ |
| 48 | res; }) |
| 49 | |
Veaceslav Falico | 0184409 | 2014-05-15 21:39:55 +0200 | [diff] [blame] | 50 | #define BOND_MODE(bond) ((bond)->params.mode) |
| 51 | |
nikolay@redhat.com | dec1e90 | 2013-08-01 16:54:47 +0200 | [diff] [blame] | 52 | /* slave list primitives */ |
Veaceslav Falico | 5a52405 | 2013-09-25 09:20:24 +0200 | [diff] [blame] | 53 | #define bond_slave_list(bond) (&(bond)->dev->adj_list.lower) |
| 54 | |
| 55 | #define bond_has_slaves(bond) !list_empty(bond_slave_list(bond)) |
Veaceslav Falico | 0965a1f | 2013-09-25 09:20:21 +0200 | [diff] [blame] | 56 | |
nikolay@redhat.com | dec1e90 | 2013-08-01 16:54:47 +0200 | [diff] [blame] | 57 | /* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */ |
| 58 | #define bond_first_slave(bond) \ |
Veaceslav Falico | 5a52405 | 2013-09-25 09:20:24 +0200 | [diff] [blame] | 59 | (bond_has_slaves(bond) ? \ |
| 60 | netdev_adjacent_get_private(bond_slave_list(bond)->next) : \ |
| 61 | NULL) |
nikolay@redhat.com | dec1e90 | 2013-08-01 16:54:47 +0200 | [diff] [blame] | 62 | #define bond_last_slave(bond) \ |
Veaceslav Falico | 5a52405 | 2013-09-25 09:20:24 +0200 | [diff] [blame] | 63 | (bond_has_slaves(bond) ? \ |
| 64 | netdev_adjacent_get_private(bond_slave_list(bond)->prev) : \ |
| 65 | NULL) |
nikolay@redhat.com | dec1e90 | 2013-08-01 16:54:47 +0200 | [diff] [blame] | 66 | |
dingtianhong | e001bfa | 2013-12-13 10:19:55 +0800 | [diff] [blame] | 67 | /* Caller must have rcu_read_lock */ |
| 68 | #define bond_first_slave_rcu(bond) \ |
| 69 | netdev_lower_get_first_private_rcu(bond->dev) |
| 70 | |
Veaceslav Falico | 5a52405 | 2013-09-25 09:20:24 +0200 | [diff] [blame] | 71 | #define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond)) |
| 72 | #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] | 73 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | /** |
nikolay@redhat.com | dec1e90 | 2013-08-01 16:54:47 +0200 | [diff] [blame] | 75 | * bond_for_each_slave - iterate over all slaves |
| 76 | * @bond: the bond holding this list |
| 77 | * @pos: current slave |
Veaceslav Falico | 9caff1e7 | 2013-09-25 09:20:14 +0200 | [diff] [blame] | 78 | * @iter: list_head * iterator |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | * |
Nikolay Aleksandrov | 87163ef | 2014-09-09 23:17:03 +0200 | [diff] [blame] | 80 | * Caller must hold RTNL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | */ |
Veaceslav Falico | 9caff1e7 | 2013-09-25 09:20:14 +0200 | [diff] [blame] | 82 | #define bond_for_each_slave(bond, pos, iter) \ |
| 83 | netdev_for_each_lower_private((bond)->dev, pos, iter) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | |
nikolay@redhat.com | 278b208 | 2013-08-01 16:54:51 +0200 | [diff] [blame] | 85 | /* Caller must have rcu_read_lock */ |
Veaceslav Falico | 9caff1e7 | 2013-09-25 09:20:14 +0200 | [diff] [blame] | 86 | #define bond_for_each_slave_rcu(bond, pos, iter) \ |
| 87 | netdev_for_each_lower_private_rcu((bond)->dev, pos, iter) |
nikolay@redhat.com | 278b208 | 2013-08-01 16:54:51 +0200 | [diff] [blame] | 88 | |
Neil Horman | e843fa5 | 2010-10-13 16:01:50 +0000 | [diff] [blame] | 89 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Neil Horman | fb4fa76 | 2010-12-06 09:05:50 +0000 | [diff] [blame] | 90 | extern atomic_t netpoll_block_tx; |
Neil Horman | e843fa5 | 2010-10-13 16:01:50 +0000 | [diff] [blame] | 91 | |
| 92 | static inline void block_netpoll_tx(void) |
| 93 | { |
Neil Horman | fb4fa76 | 2010-12-06 09:05:50 +0000 | [diff] [blame] | 94 | atomic_inc(&netpoll_block_tx); |
Neil Horman | e843fa5 | 2010-10-13 16:01:50 +0000 | [diff] [blame] | 95 | } |
| 96 | |
| 97 | static inline void unblock_netpoll_tx(void) |
| 98 | { |
Neil Horman | fb4fa76 | 2010-12-06 09:05:50 +0000 | [diff] [blame] | 99 | atomic_dec(&netpoll_block_tx); |
Neil Horman | e843fa5 | 2010-10-13 16:01:50 +0000 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | static inline int is_netpoll_tx_blocked(struct net_device *dev) |
| 103 | { |
Amerigo Wang | 080e413 | 2011-02-17 23:43:33 +0000 | [diff] [blame] | 104 | if (unlikely(netpoll_tx_running(dev))) |
Neil Horman | fb4fa76 | 2010-12-06 09:05:50 +0000 | [diff] [blame] | 105 | return atomic_read(&netpoll_block_tx); |
Neil Horman | e843fa5 | 2010-10-13 16:01:50 +0000 | [diff] [blame] | 106 | return 0; |
| 107 | } |
| 108 | #else |
| 109 | #define block_netpoll_tx() |
| 110 | #define unblock_netpoll_tx() |
| 111 | #define is_netpoll_tx_blocked(dev) (0) |
| 112 | #endif |
| 113 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | struct bond_params { |
| 115 | int mode; |
Jay Vosburgh | 169a3e6 | 2005-06-26 17:54:11 -0400 | [diff] [blame] | 116 | int xmit_policy; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | int miimon; |
Ben Hutchings | ad246c9 | 2011-04-26 15:25:52 +0000 | [diff] [blame] | 118 | u8 num_peer_notif; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | int arp_interval; |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 120 | int arp_validate; |
Veaceslav Falico | 8599b52 | 2013-06-24 11:49:34 +0200 | [diff] [blame] | 121 | int arp_all_targets; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | int use_carrier; |
Jay Vosburgh | dd957c5 | 2007-10-09 19:57:24 -0700 | [diff] [blame] | 123 | int fail_over_mac; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | int updelay; |
| 125 | int downdelay; |
| 126 | int lacp_fast; |
stephen hemminger | 655f891 | 2011-06-22 09:54:39 +0000 | [diff] [blame] | 127 | unsigned int min_links; |
Jay Vosburgh | fd989c8 | 2008-11-04 17:51:16 -0800 | [diff] [blame] | 128 | int ad_select; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | char primary[IFNAMSIZ]; |
Jiri Pirko | a549952 | 2009-09-25 03:28:09 +0000 | [diff] [blame] | 130 | int primary_reselect; |
Al Viro | d3bb52b | 2007-08-22 20:06:58 -0400 | [diff] [blame] | 131 | __be32 arp_targets[BOND_MAX_ARP_TARGETS]; |
Andy Gospodarek | bb1d912 | 2010-06-02 08:40:18 +0000 | [diff] [blame] | 132 | int tx_queues; |
Andy Gospodarek | ebd8e49 | 2010-06-02 08:39:21 +0000 | [diff] [blame] | 133 | int all_slaves_active; |
Flavio Leitner | c2952c3 | 2010-10-05 14:23:59 +0000 | [diff] [blame] | 134 | int resend_igmp; |
Neil Horman | 7eacd03 | 2013-09-13 11:05:33 -0400 | [diff] [blame] | 135 | int lp_interval; |
Nikolay Aleksandrov | 7395832 | 2013-11-05 13:51:41 +0100 | [diff] [blame] | 136 | int packets_per_slave; |
Mahesh Bandewar | e9f0fb8 | 2014-04-22 16:30:22 -0700 | [diff] [blame] | 137 | int tlb_dynamic_lb; |
Hannes Frederic Sowa | 809fa97 | 2014-01-22 02:29:41 +0100 | [diff] [blame] | 138 | struct reciprocal_value reciprocal_packets_per_slave; |
Mahesh Bandewar | 6791e46 | 2015-05-09 00:01:55 -0700 | [diff] [blame] | 139 | u16 ad_actor_sys_prio; |
Mahesh Bandewar | d22a5fc | 2015-05-09 00:01:57 -0700 | [diff] [blame] | 140 | u16 ad_user_port_key; |
Mahesh Bandewar | 7451495 | 2015-05-09 00:01:56 -0700 | [diff] [blame] | 141 | u8 ad_actor_system[ETH_ALEN]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | }; |
| 143 | |
Mitch Williams | 12479f9 | 2005-11-09 10:35:44 -0800 | [diff] [blame] | 144 | struct bond_parm_tbl { |
| 145 | char *modename; |
| 146 | int mode; |
| 147 | }; |
| 148 | |
Moni Shoua | 69e6113 | 2015-02-03 16:48:31 +0200 | [diff] [blame] | 149 | struct netdev_notify_work { |
| 150 | struct delayed_work work; |
Moni Shoua | 69e6113 | 2015-02-03 16:48:31 +0200 | [diff] [blame] | 151 | struct net_device *dev; |
Moni Shoua | 92e584f | 2015-02-08 11:49:32 +0200 | [diff] [blame] | 152 | struct netdev_bonding_info bonding_info; |
Moni Shoua | 69e6113 | 2015-02-03 16:48:31 +0200 | [diff] [blame] | 153 | }; |
| 154 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | struct slave { |
Mitch Williams | e944ef7 | 2005-11-09 10:36:50 -0800 | [diff] [blame] | 156 | struct net_device *dev; /* first - useful for panic debug */ |
Jiri Pirko | 35d4890 | 2011-03-22 02:38:12 +0000 | [diff] [blame] | 157 | struct bonding *bond; /* our master */ |
Jay Vosburgh | 8bb5f96 | 2006-09-22 21:52:51 -0700 | [diff] [blame] | 158 | int delay; |
Veaceslav Falico | 8e60346 | 2014-02-18 07:48:46 +0100 | [diff] [blame] | 159 | /* all three in jiffies */ |
| 160 | unsigned long last_link_up; |
Veaceslav Falico | 49f17de | 2014-02-18 07:48:47 +0100 | [diff] [blame] | 161 | unsigned long last_rx; |
Veaceslav Falico | 8599b52 | 2013-06-24 11:49:34 +0200 | [diff] [blame] | 162 | unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | s8 link; /* one of BOND_LINK_XXXX */ |
Jay Vosburgh | b2220ca | 2008-05-17 21:10:13 -0700 | [diff] [blame] | 164 | s8 new_link; |
Jiri Pirko | 2d7011c | 2011-03-16 08:46:43 +0000 | [diff] [blame] | 165 | u8 backup:1, /* indicates backup slave. Value corresponds with |
| 166 | BOND_STATE_ACTIVE and BOND_STATE_BACKUP */ |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 167 | inactive:1, /* indicates inactive slave */ |
Jiri Pirko | 5d39706 | 2015-12-03 12:12:19 +0100 | [diff] [blame] | 168 | should_notify:1, /* indicates whether the state changed */ |
| 169 | should_notify_link:1; /* indicates whether the link changed */ |
David Decotigny | 5d30530 | 2011-04-13 15:22:31 +0000 | [diff] [blame] | 170 | u8 duplex; |
Moni Shoua | 3158bf7 | 2007-10-09 19:43:41 -0700 | [diff] [blame] | 171 | u32 original_mtu; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | u32 link_failure_count; |
David Decotigny | 5d30530 | 2011-04-13 15:22:31 +0000 | [diff] [blame] | 173 | u32 speed; |
Andy Gospodarek | bb1d912 | 2010-06-02 08:40:18 +0000 | [diff] [blame] | 174 | u16 queue_id; |
David Decotigny | 5d30530 | 2011-04-13 15:22:31 +0000 | [diff] [blame] | 175 | u8 perm_hwaddr[ETH_ALEN]; |
dingtianhong | 3fdddd8 | 2014-05-12 15:08:43 +0800 | [diff] [blame] | 176 | struct ad_slave_info *ad_info; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | struct tlb_slave_info tlb_info; |
Amerigo Wang | 8a8efa2 | 2011-02-17 23:43:32 +0000 | [diff] [blame] | 178 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 179 | struct netpoll *np; |
| 180 | #endif |
sfeldma@cumulusnetworks.com | 07699f9 | 2014-01-16 22:57:49 -0800 | [diff] [blame] | 181 | struct kobject kobj; |
Andy Gospodarek | 5f0c5f7 | 2014-09-28 22:34:37 -0400 | [diff] [blame] | 182 | struct rtnl_link_stats64 slave_stats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | }; |
| 184 | |
Mahesh Bandewar | ee63771 | 2014-10-04 17:45:01 -0700 | [diff] [blame] | 185 | struct bond_up_slave { |
| 186 | unsigned int count; |
| 187 | struct rcu_head rcu; |
| 188 | struct slave *arr[0]; |
| 189 | }; |
| 190 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | /* |
Jay Vosburgh | b2220ca | 2008-05-17 21:10:13 -0700 | [diff] [blame] | 192 | * Link pseudo-state only used internally by monitors |
| 193 | */ |
| 194 | #define BOND_LINK_NOCHANGE -1 |
| 195 | |
| 196 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 197 | * Here are the locking policies for the two bonding locks: |
Nikolay Aleksandrov | 1c72cfdc9 | 2014-09-11 22:49:24 +0200 | [diff] [blame] | 198 | * Get rcu_read_lock when reading or RTNL when writing slave list. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | */ |
| 200 | struct bonding { |
Mitch Williams | e944ef7 | 2005-11-09 10:36:50 -0800 | [diff] [blame] | 201 | struct net_device *dev; /* first - useful for panic debug */ |
Eric Dumazet | 4740d63 | 2014-07-15 06:56:55 -0700 | [diff] [blame] | 202 | struct slave __rcu *curr_active_slave; |
Eric Dumazet | 8574171 | 2014-07-15 06:56:56 -0700 | [diff] [blame] | 203 | struct slave __rcu *current_arp_slave; |
Nikolay Aleksandrov | 059b47e | 2014-09-09 23:17:00 +0200 | [diff] [blame] | 204 | struct slave __rcu *primary_slave; |
Mahesh Bandewar | ee63771 | 2014-10-04 17:45:01 -0700 | [diff] [blame] | 205 | struct bond_up_slave __rcu *slave_arr; /* Array of usable slaves */ |
Jiri Pirko | a549952 | 2009-09-25 03:28:09 +0000 | [diff] [blame] | 206 | bool force_primary; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 207 | s32 slave_cnt; /* never change this value outside the attach/detach wrappers */ |
Eric Dumazet | de063b7 | 2012-06-11 19:23:07 +0000 | [diff] [blame] | 208 | int (*recv_probe)(const struct sk_buff *, struct bonding *, |
| 209 | struct slave *); |
Nikolay Aleksandrov | 8c0bc55 | 2014-09-11 22:49:28 +0200 | [diff] [blame] | 210 | /* mode_lock is used for mode-specific locking needs, currently used by: |
| 211 | * 3ad mode (4) - protect against running bond_3ad_unbind_slave() and |
Nikolay Aleksandrov | 547942c | 2014-09-15 17:19:34 +0200 | [diff] [blame] | 212 | * bond_3ad_state_machine_handler() concurrently and also |
| 213 | * the access to the state machine shared variables. |
Nikolay Aleksandrov | 8c0bc55 | 2014-09-11 22:49:28 +0200 | [diff] [blame] | 214 | * TLB mode (5) - to sync the use and modifications of its hash table |
| 215 | * ALB mode (6) - to sync the use and modifications of its hash table |
| 216 | */ |
Nikolay Aleksandrov | b743562 | 2014-09-11 22:49:25 +0200 | [diff] [blame] | 217 | spinlock_t mode_lock; |
Ben Hutchings | ad246c9 | 2011-04-26 15:25:52 +0000 | [diff] [blame] | 218 | u8 send_peer_notif; |
Nikolay Aleksandrov | 4f5474e | 2013-06-12 00:07:02 +0200 | [diff] [blame] | 219 | u8 igmp_retrans; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | #ifdef CONFIG_PROC_FS |
| 221 | struct proc_dir_entry *proc_entry; |
| 222 | char proc_file_name[IFNAMSIZ]; |
| 223 | #endif /* CONFIG_PROC_FS */ |
| 224 | struct list_head bond_list; |
Nikolay Aleksandrov | 7395832 | 2013-11-05 13:51:41 +0100 | [diff] [blame] | 225 | u32 rr_tx_counter; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | struct ad_bond_info ad_info; |
| 227 | struct alb_bond_info alb_info; |
| 228 | struct bond_params params; |
Jay Vosburgh | 1b76b31 | 2007-10-17 17:37:45 -0700 | [diff] [blame] | 229 | struct workqueue_struct *wq; |
| 230 | struct delayed_work mii_work; |
| 231 | struct delayed_work arp_work; |
| 232 | struct delayed_work alb_work; |
| 233 | struct delayed_work ad_work; |
Flavio Leitner | 5a37e8c | 2010-10-05 14:23:57 +0000 | [diff] [blame] | 234 | struct delayed_work mcast_work; |
Mahesh Bandewar | ee63771 | 2014-10-04 17:45:01 -0700 | [diff] [blame] | 235 | struct delayed_work slave_arr_work; |
Taku Izumi | f073c7c | 2010-12-09 15:17:13 +0000 | [diff] [blame] | 236 | #ifdef CONFIG_DEBUG_FS |
Masanari Iida | 02582e9 | 2012-08-22 19:11:26 +0900 | [diff] [blame] | 237 | /* debugging support via debugfs */ |
Taku Izumi | f073c7c | 2010-12-09 15:17:13 +0000 | [diff] [blame] | 238 | struct dentry *debug_dir; |
| 239 | #endif /* CONFIG_DEBUG_FS */ |
Andy Gospodarek | 5f0c5f7 | 2014-09-28 22:34:37 -0400 | [diff] [blame] | 240 | struct rtnl_link_stats64 bond_stats; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | }; |
| 242 | |
Jiri Pirko | f1c1775 | 2011-03-12 03:14:35 +0000 | [diff] [blame] | 243 | #define bond_slave_get_rcu(dev) \ |
| 244 | ((struct slave *) rcu_dereference(dev->rx_handler_data)) |
| 245 | |
Jiri Pirko | 471cb5a | 2013-01-03 22:49:01 +0000 | [diff] [blame] | 246 | #define bond_slave_get_rtnl(dev) \ |
| 247 | ((struct slave *) rtnl_dereference(dev->rx_handler_data)) |
| 248 | |
Moni Shoua | 69e6113 | 2015-02-03 16:48:31 +0200 | [diff] [blame] | 249 | void bond_queue_slave_event(struct slave *slave); |
Jiri Pirko | f7c7eb7 | 2015-12-03 12:12:20 +0100 | [diff] [blame] | 250 | void bond_lower_state_changed(struct slave *slave); |
Moni Shoua | 69e6113 | 2015-02-03 16:48:31 +0200 | [diff] [blame] | 251 | |
dingtianhong | fbd929f | 2014-03-25 17:44:43 +0800 | [diff] [blame] | 252 | struct bond_vlan_tag { |
| 253 | __be16 vlan_proto; |
| 254 | unsigned short vlan_id; |
| 255 | }; |
| 256 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | /** |
| 258 | * Returns NULL if the net_device does not belong to any of the bond's slaves |
| 259 | * |
| 260 | * Caller must hold bond lock for read |
| 261 | */ |
stephen hemminger | 4ec952b | 2011-02-23 07:40:33 +0000 | [diff] [blame] | 262 | static inline struct slave *bond_get_slave_by_dev(struct bonding *bond, |
| 263 | struct net_device *slave_dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | { |
Veaceslav Falico | 46bb480 | 2013-09-25 09:20:11 +0200 | [diff] [blame] | 265 | return netdev_lower_dev_get_private(bond->dev, slave_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | } |
| 267 | |
Adrian Bunk | cceb904 | 2006-01-05 22:45:42 -0800 | [diff] [blame] | 268 | static inline struct bonding *bond_get_bond_by_slave(struct slave *slave) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | { |
Jiri Pirko | 471cb5a | 2013-01-03 22:49:01 +0000 | [diff] [blame] | 270 | return slave->bond; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | } |
| 272 | |
Veaceslav Falico | d1e2e5c | 2014-05-15 21:39:52 +0200 | [diff] [blame] | 273 | static inline bool bond_should_override_tx_queue(struct bonding *bond) |
| 274 | { |
Veaceslav Falico | 0184409 | 2014-05-15 21:39:55 +0200 | [diff] [blame] | 275 | return BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP || |
| 276 | BOND_MODE(bond) == BOND_MODE_ROUNDROBIN; |
Veaceslav Falico | d1e2e5c | 2014-05-15 21:39:52 +0200 | [diff] [blame] | 277 | } |
| 278 | |
Holger Eitzenberger | 5840205 | 2008-12-09 23:07:13 -0800 | [diff] [blame] | 279 | static inline bool bond_is_lb(const struct bonding *bond) |
| 280 | { |
Veaceslav Falico | 0184409 | 2014-05-15 21:39:55 +0200 | [diff] [blame] | 281 | return BOND_MODE(bond) == BOND_MODE_TLB || |
| 282 | BOND_MODE(bond) == BOND_MODE_ALB; |
Holger Eitzenberger | 5840205 | 2008-12-09 23:07:13 -0800 | [diff] [blame] | 283 | } |
| 284 | |
Mahesh Bandewar | 6b794c1 | 2014-07-16 11:10:36 -0700 | [diff] [blame] | 285 | static inline bool bond_is_nondyn_tlb(const struct bonding *bond) |
| 286 | { |
| 287 | return (BOND_MODE(bond) == BOND_MODE_TLB) && |
| 288 | (bond->params.tlb_dynamic_lb == 0); |
| 289 | } |
| 290 | |
Mahesh Bandewar | d702132 | 2014-10-04 17:44:44 -0700 | [diff] [blame] | 291 | static inline bool bond_mode_uses_xmit_hash(const struct bonding *bond) |
| 292 | { |
| 293 | return (BOND_MODE(bond) == BOND_MODE_8023AD || |
| 294 | BOND_MODE(bond) == BOND_MODE_XOR || |
| 295 | bond_is_nondyn_tlb(bond)); |
| 296 | } |
| 297 | |
Veaceslav Falico | 267bed7 | 2014-05-15 21:39:53 +0200 | [diff] [blame] | 298 | static inline bool bond_mode_uses_arp(int mode) |
| 299 | { |
| 300 | return mode != BOND_MODE_8023AD && mode != BOND_MODE_TLB && |
| 301 | mode != BOND_MODE_ALB; |
| 302 | } |
| 303 | |
Veaceslav Falico | ec0865a | 2014-05-15 21:39:54 +0200 | [diff] [blame] | 304 | static inline bool bond_mode_uses_primary(int mode) |
| 305 | { |
| 306 | return mode == BOND_MODE_ACTIVEBACKUP || mode == BOND_MODE_TLB || |
| 307 | mode == BOND_MODE_ALB; |
| 308 | } |
| 309 | |
| 310 | static inline bool bond_uses_primary(struct bonding *bond) |
| 311 | { |
Veaceslav Falico | 0184409 | 2014-05-15 21:39:55 +0200 | [diff] [blame] | 312 | return bond_mode_uses_primary(BOND_MODE(bond)); |
Veaceslav Falico | ec0865a | 2014-05-15 21:39:54 +0200 | [diff] [blame] | 313 | } |
| 314 | |
Matan Barak | e999869 | 2015-07-30 18:33:24 +0300 | [diff] [blame] | 315 | static inline struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond) |
| 316 | { |
| 317 | struct slave *slave = rcu_dereference(bond->curr_active_slave); |
| 318 | |
| 319 | return bond_uses_primary(bond) && slave ? slave->dev : NULL; |
| 320 | } |
| 321 | |
Veaceslav Falico | b6adc61 | 2014-05-15 21:39:57 +0200 | [diff] [blame] | 322 | static inline bool bond_slave_is_up(struct slave *slave) |
| 323 | { |
| 324 | return netif_running(slave->dev) && netif_carrier_ok(slave->dev); |
| 325 | } |
| 326 | |
Jiri Pirko | e30bc06 | 2011-03-12 03:14:37 +0000 | [diff] [blame] | 327 | static inline void bond_set_active_slave(struct slave *slave) |
| 328 | { |
sfeldma@cumulusnetworks.com | 1d3ee88 | 2014-01-16 22:57:56 -0800 | [diff] [blame] | 329 | if (slave->backup) { |
| 330 | slave->backup = 0; |
Moni Shoua | 69e6113 | 2015-02-03 16:48:31 +0200 | [diff] [blame] | 331 | bond_queue_slave_event(slave); |
Jiri Pirko | f7c7eb7 | 2015-12-03 12:12:20 +0100 | [diff] [blame] | 332 | bond_lower_state_changed(slave); |
Veaceslav Falico | 072256d | 2014-03-06 15:33:22 +0100 | [diff] [blame] | 333 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
sfeldma@cumulusnetworks.com | 1d3ee88 | 2014-01-16 22:57:56 -0800 | [diff] [blame] | 334 | } |
Jiri Pirko | e30bc06 | 2011-03-12 03:14:37 +0000 | [diff] [blame] | 335 | } |
| 336 | |
| 337 | static inline void bond_set_backup_slave(struct slave *slave) |
| 338 | { |
sfeldma@cumulusnetworks.com | 1d3ee88 | 2014-01-16 22:57:56 -0800 | [diff] [blame] | 339 | if (!slave->backup) { |
| 340 | slave->backup = 1; |
Moni Shoua | 69e6113 | 2015-02-03 16:48:31 +0200 | [diff] [blame] | 341 | bond_queue_slave_event(slave); |
Jiri Pirko | f7c7eb7 | 2015-12-03 12:12:20 +0100 | [diff] [blame] | 342 | bond_lower_state_changed(slave); |
Veaceslav Falico | 072256d | 2014-03-06 15:33:22 +0100 | [diff] [blame] | 343 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
sfeldma@cumulusnetworks.com | 1d3ee88 | 2014-01-16 22:57:56 -0800 | [diff] [blame] | 344 | } |
Jiri Pirko | e30bc06 | 2011-03-12 03:14:37 +0000 | [diff] [blame] | 345 | } |
| 346 | |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 347 | static inline void bond_set_slave_state(struct slave *slave, |
| 348 | int slave_state, bool notify) |
| 349 | { |
| 350 | if (slave->backup == slave_state) |
| 351 | return; |
| 352 | |
| 353 | slave->backup = slave_state; |
| 354 | if (notify) { |
Jiri Pirko | f7c7eb7 | 2015-12-03 12:12:20 +0100 | [diff] [blame] | 355 | bond_lower_state_changed(slave); |
Veaceslav Falico | 072256d | 2014-03-06 15:33:22 +0100 | [diff] [blame] | 356 | rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC); |
Moni Shoua | 69e6113 | 2015-02-03 16:48:31 +0200 | [diff] [blame] | 357 | bond_queue_slave_event(slave); |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 358 | slave->should_notify = 0; |
| 359 | } else { |
| 360 | if (slave->should_notify) |
| 361 | slave->should_notify = 0; |
| 362 | else |
| 363 | slave->should_notify = 1; |
| 364 | } |
| 365 | } |
| 366 | |
Ding Tianhong | 6fde8f0 | 2014-01-28 11:48:53 +0800 | [diff] [blame] | 367 | static inline void bond_slave_state_change(struct bonding *bond) |
| 368 | { |
| 369 | struct list_head *iter; |
| 370 | struct slave *tmp; |
| 371 | |
| 372 | bond_for_each_slave(bond, tmp, iter) { |
| 373 | if (tmp->link == BOND_LINK_UP) |
| 374 | bond_set_active_slave(tmp); |
| 375 | else if (tmp->link == BOND_LINK_DOWN) |
| 376 | bond_set_backup_slave(tmp); |
| 377 | } |
| 378 | } |
| 379 | |
dingtianhong | b092991 | 2014-02-26 11:05:23 +0800 | [diff] [blame] | 380 | static inline void bond_slave_state_notify(struct bonding *bond) |
| 381 | { |
| 382 | struct list_head *iter; |
| 383 | struct slave *tmp; |
| 384 | |
| 385 | bond_for_each_slave(bond, tmp, iter) { |
| 386 | if (tmp->should_notify) { |
Jiri Pirko | f7c7eb7 | 2015-12-03 12:12:20 +0100 | [diff] [blame] | 387 | bond_lower_state_changed(tmp); |
Veaceslav Falico | 072256d | 2014-03-06 15:33:22 +0100 | [diff] [blame] | 388 | rtmsg_ifinfo(RTM_NEWLINK, tmp->dev, 0, GFP_ATOMIC); |
dingtianhong | b092991 | 2014-02-26 11:05:23 +0800 | [diff] [blame] | 389 | tmp->should_notify = 0; |
| 390 | } |
| 391 | } |
| 392 | } |
| 393 | |
Jiri Pirko | e30bc06 | 2011-03-12 03:14:37 +0000 | [diff] [blame] | 394 | static inline int bond_slave_state(struct slave *slave) |
| 395 | { |
| 396 | return slave->backup; |
| 397 | } |
| 398 | |
| 399 | static inline bool bond_is_active_slave(struct slave *slave) |
| 400 | { |
| 401 | return !bond_slave_state(slave); |
| 402 | } |
| 403 | |
Veaceslav Falico | 891ab54 | 2014-05-15 21:39:58 +0200 | [diff] [blame] | 404 | static inline bool bond_slave_can_tx(struct slave *slave) |
| 405 | { |
| 406 | return bond_slave_is_up(slave) && slave->link == BOND_LINK_UP && |
| 407 | bond_is_active_slave(slave); |
| 408 | } |
| 409 | |
Jiri Pirko | a549952 | 2009-09-25 03:28:09 +0000 | [diff] [blame] | 410 | #define BOND_PRI_RESELECT_ALWAYS 0 |
| 411 | #define BOND_PRI_RESELECT_BETTER 1 |
| 412 | #define BOND_PRI_RESELECT_FAILURE 2 |
| 413 | |
Jay Vosburgh | 3915c1e8 | 2008-05-17 21:10:14 -0700 | [diff] [blame] | 414 | #define BOND_FOM_NONE 0 |
| 415 | #define BOND_FOM_ACTIVE 1 |
| 416 | #define BOND_FOM_FOLLOW 2 |
| 417 | |
Veaceslav Falico | 8599b52 | 2013-06-24 11:49:34 +0200 | [diff] [blame] | 418 | #define BOND_ARP_TARGETS_ANY 0 |
| 419 | #define BOND_ARP_TARGETS_ALL 1 |
| 420 | |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 421 | #define BOND_ARP_VALIDATE_NONE 0 |
| 422 | #define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE) |
| 423 | #define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP) |
| 424 | #define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \ |
| 425 | BOND_ARP_VALIDATE_BACKUP) |
Veaceslav Falico | 896149f | 2014-02-18 07:48:40 +0100 | [diff] [blame] | 426 | #define BOND_ARP_FILTER (BOND_ARP_VALIDATE_ALL + 1) |
| 427 | #define BOND_ARP_FILTER_ACTIVE (BOND_ARP_VALIDATE_ACTIVE | \ |
| 428 | BOND_ARP_FILTER) |
| 429 | #define BOND_ARP_FILTER_BACKUP (BOND_ARP_VALIDATE_BACKUP | \ |
| 430 | BOND_ARP_FILTER) |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 431 | |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 432 | #define BOND_SLAVE_NOTIFY_NOW true |
| 433 | #define BOND_SLAVE_NOTIFY_LATER false |
| 434 | |
Adrian Bunk | 079ca7d | 2006-12-12 17:24:39 +0100 | [diff] [blame] | 435 | static inline int slave_do_arp_validate(struct bonding *bond, |
| 436 | struct slave *slave) |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 437 | { |
Jiri Pirko | e30bc06 | 2011-03-12 03:14:37 +0000 | [diff] [blame] | 438 | return bond->params.arp_validate & (1 << bond_slave_state(slave)); |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 439 | } |
| 440 | |
dingtianhong | bedabf9 | 2014-05-07 22:10:20 +0800 | [diff] [blame] | 441 | static inline int slave_do_arp_validate_only(struct bonding *bond) |
Veaceslav Falico | 896149f | 2014-02-18 07:48:40 +0100 | [diff] [blame] | 442 | { |
| 443 | return bond->params.arp_validate & BOND_ARP_FILTER; |
| 444 | } |
| 445 | |
Veaceslav Falico | 2807a9f | 2014-05-15 21:39:56 +0200 | [diff] [blame] | 446 | static inline int bond_is_ip_target_ok(__be32 addr) |
| 447 | { |
| 448 | return !ipv4_is_lbcast(addr) && !ipv4_is_zeronet(addr); |
| 449 | } |
| 450 | |
Veaceslav Falico | 8599b52 | 2013-06-24 11:49:34 +0200 | [diff] [blame] | 451 | /* Get the oldest arp which we've received on this slave for bond's |
| 452 | * arp_targets. |
| 453 | */ |
| 454 | static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond, |
| 455 | struct slave *slave) |
| 456 | { |
| 457 | int i = 1; |
| 458 | unsigned long ret = slave->target_last_arp_rx[0]; |
| 459 | |
| 460 | for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++) |
| 461 | if (time_before(slave->target_last_arp_rx[i], ret)) |
| 462 | ret = slave->target_last_arp_rx[i]; |
| 463 | |
| 464 | return ret; |
| 465 | } |
| 466 | |
Adrian Bunk | 079ca7d | 2006-12-12 17:24:39 +0100 | [diff] [blame] | 467 | static inline unsigned long slave_last_rx(struct bonding *bond, |
Andy Gospodarek | f8a8ccd | 2007-01-29 12:08:38 -0800 | [diff] [blame] | 468 | struct slave *slave) |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 469 | { |
Veaceslav Falico | 9f24273 | 2014-02-18 07:48:43 +0100 | [diff] [blame] | 470 | if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL) |
| 471 | return slave_oldest_target_arp_rx(bond, slave); |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 472 | |
Veaceslav Falico | 49f17de | 2014-02-18 07:48:47 +0100 | [diff] [blame] | 473 | return slave->last_rx; |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 474 | } |
| 475 | |
Amerigo Wang | 8a8efa2 | 2011-02-17 23:43:32 +0000 | [diff] [blame] | 476 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 477 | static inline void bond_netpoll_send_skb(const struct slave *slave, |
| 478 | struct sk_buff *skb) |
| 479 | { |
| 480 | struct netpoll *np = slave->np; |
| 481 | |
| 482 | if (np) |
| 483 | netpoll_send_skb(np, skb); |
| 484 | } |
| 485 | #else |
| 486 | static inline void bond_netpoll_send_skb(const struct slave *slave, |
| 487 | struct sk_buff *skb) |
| 488 | { |
| 489 | } |
| 490 | #endif |
| 491 | |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 492 | static inline void bond_set_slave_inactive_flags(struct slave *slave, |
| 493 | bool notify) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 494 | { |
Jiri Pirko | 471cb5a | 2013-01-03 22:49:01 +0000 | [diff] [blame] | 495 | if (!bond_is_lb(slave->bond)) |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 496 | bond_set_slave_state(slave, BOND_STATE_BACKUP, notify); |
Jiri Pirko | 471cb5a | 2013-01-03 22:49:01 +0000 | [diff] [blame] | 497 | if (!slave->bond->params.all_slaves_active) |
Jiri Pirko | 2d7011c | 2011-03-16 08:46:43 +0000 | [diff] [blame] | 498 | slave->inactive = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 499 | } |
| 500 | |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 501 | static inline void bond_set_slave_active_flags(struct slave *slave, |
| 502 | bool notify) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | { |
dingtianhong | 5e5b066 | 2014-02-26 11:05:22 +0800 | [diff] [blame] | 504 | bond_set_slave_state(slave, BOND_STATE_ACTIVE, notify); |
Jiri Pirko | 2d7011c | 2011-03-16 08:46:43 +0000 | [diff] [blame] | 505 | slave->inactive = 0; |
| 506 | } |
| 507 | |
| 508 | static inline bool bond_is_slave_inactive(struct slave *slave) |
| 509 | { |
| 510 | return slave->inactive; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | } |
| 512 | |
Jiri Pirko | 5d39706 | 2015-12-03 12:12:19 +0100 | [diff] [blame] | 513 | static inline void bond_set_slave_link_state(struct slave *slave, int state, |
| 514 | bool notify) |
Moni Shoua | 69a2338e | 2015-02-03 16:48:30 +0200 | [diff] [blame] | 515 | { |
Jiri Pirko | 5d39706 | 2015-12-03 12:12:19 +0100 | [diff] [blame] | 516 | if (slave->link == state) |
| 517 | return; |
| 518 | |
Moni Shoua | 69a2338e | 2015-02-03 16:48:30 +0200 | [diff] [blame] | 519 | slave->link = state; |
Jiri Pirko | 5d39706 | 2015-12-03 12:12:19 +0100 | [diff] [blame] | 520 | if (notify) { |
| 521 | bond_queue_slave_event(slave); |
Jiri Pirko | f7c7eb7 | 2015-12-03 12:12:20 +0100 | [diff] [blame] | 522 | bond_lower_state_changed(slave); |
Jiri Pirko | 5d39706 | 2015-12-03 12:12:19 +0100 | [diff] [blame] | 523 | slave->should_notify_link = 0; |
| 524 | } else { |
| 525 | if (slave->should_notify_link) |
| 526 | slave->should_notify_link = 0; |
| 527 | else |
| 528 | slave->should_notify_link = 1; |
| 529 | } |
| 530 | } |
| 531 | |
| 532 | static inline void bond_slave_link_notify(struct bonding *bond) |
| 533 | { |
| 534 | struct list_head *iter; |
| 535 | struct slave *tmp; |
| 536 | |
| 537 | bond_for_each_slave(bond, tmp, iter) { |
| 538 | if (tmp->should_notify_link) { |
| 539 | bond_queue_slave_event(tmp); |
Jiri Pirko | f7c7eb7 | 2015-12-03 12:12:20 +0100 | [diff] [blame] | 540 | bond_lower_state_changed(tmp); |
Jiri Pirko | 5d39706 | 2015-12-03 12:12:19 +0100 | [diff] [blame] | 541 | tmp->should_notify_link = 0; |
| 542 | } |
| 543 | } |
Moni Shoua | 69a2338e | 2015-02-03 16:48:30 +0200 | [diff] [blame] | 544 | } |
| 545 | |
Andy Gospodarek | eaddcd7 | 2012-03-22 16:14:29 +0000 | [diff] [blame] | 546 | static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local) |
| 547 | { |
| 548 | struct in_device *in_dev; |
| 549 | __be32 addr = 0; |
| 550 | |
| 551 | rcu_read_lock(); |
| 552 | in_dev = __in_dev_get_rcu(dev); |
| 553 | |
| 554 | if (in_dev) |
Nicolas Dichtel | b601fa19 | 2013-12-10 15:02:40 +0100 | [diff] [blame] | 555 | addr = inet_confirm_addr(dev_net(dev), in_dev, dst, local, |
| 556 | RT_SCOPE_HOST); |
Andy Gospodarek | eaddcd7 | 2012-03-22 16:14:29 +0000 | [diff] [blame] | 557 | rcu_read_unlock(); |
| 558 | return addr; |
| 559 | } |
| 560 | |
dingtianhong | 3192432 | 2014-05-07 22:10:19 +0800 | [diff] [blame] | 561 | struct bond_net { |
| 562 | struct net *net; /* Associated network namespace */ |
| 563 | struct list_head dev_list; |
| 564 | #ifdef CONFIG_PROC_FS |
| 565 | struct proc_dir_entry *proc_dir; |
| 566 | #endif |
| 567 | struct class_attribute class_attr_bonding_masters; |
| 568 | }; |
Eric W. Biederman | 4c22400 | 2011-10-12 21:56:25 +0000 | [diff] [blame] | 569 | |
nikolay@redhat.com | 5bb9e0b | 2013-09-07 00:00:26 +0200 | [diff] [blame] | 570 | 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] | 571 | 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] | 572 | int bond_create(struct net *net, const char *name); |
Eric W. Biederman | 4c22400 | 2011-10-12 21:56:25 +0000 | [diff] [blame] | 573 | int bond_create_sysfs(struct bond_net *net); |
| 574 | void bond_destroy_sysfs(struct bond_net *net); |
Eric W. Biederman | 6151b3d | 2009-10-29 14:18:22 +0000 | [diff] [blame] | 575 | void bond_prepare_sysfs_group(struct bonding *bond); |
sfeldma@cumulusnetworks.com | 07699f9 | 2014-01-16 22:57:49 -0800 | [diff] [blame] | 576 | int bond_sysfs_slave_add(struct slave *slave); |
| 577 | void bond_sysfs_slave_del(struct slave *slave); |
Mitch Williams | a77b532 | 2005-11-09 10:35:51 -0800 | [diff] [blame] | 578 | int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev); |
| 579 | 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] | 580 | u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb); |
Jonathan Toppins | 2477bc9 | 2015-01-26 01:16:57 -0500 | [diff] [blame] | 581 | int bond_set_carrier(struct bonding *bond); |
Mitch Williams | a77b532 | 2005-11-09 10:35:51 -0800 | [diff] [blame] | 582 | void bond_select_active_slave(struct bonding *bond); |
| 583 | void bond_change_active_slave(struct bonding *bond, struct slave *new_active); |
Taku Izumi | f073c7c | 2010-12-09 15:17:13 +0000 | [diff] [blame] | 584 | void bond_create_debugfs(void); |
| 585 | void bond_destroy_debugfs(void); |
| 586 | void bond_debug_register(struct bonding *bond); |
| 587 | void bond_debug_unregister(struct bonding *bond); |
| 588 | void bond_debug_reregister(struct bonding *bond); |
David Decotigny | d30ee67 | 2011-04-13 15:22:29 +0000 | [diff] [blame] | 589 | const char *bond_mode_name(int mode); |
Jiri Pirko | 0a2a78c | 2013-10-18 17:43:33 +0200 | [diff] [blame] | 590 | void bond_setup(struct net_device *bond_dev); |
| 591 | unsigned int bond_get_num_tx_queues(void); |
| 592 | int bond_netlink_init(void); |
| 593 | void bond_netlink_fini(void); |
Jiri Pirko | 752d48b | 2013-10-18 17:43:37 +0200 | [diff] [blame] | 594 | struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond); |
sfeldma@cumulusnetworks.com | 07699f9 | 2014-01-16 22:57:49 -0800 | [diff] [blame] | 595 | const char *bond_slave_link_status(s8 link); |
Veaceslav Falico | 3e403a7 | 2014-07-17 17:02:23 +0200 | [diff] [blame] | 596 | struct bond_vlan_tag *bond_verify_device_path(struct net_device *start_dev, |
| 597 | struct net_device *end_dev, |
| 598 | int level); |
Mahesh Bandewar | ee63771 | 2014-10-04 17:45:01 -0700 | [diff] [blame] | 599 | int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave); |
| 600 | void bond_slave_arr_work_rearm(struct bonding *bond, unsigned long delay); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 601 | |
Amerigo Wang | bd33acc | 2011-03-06 21:58:46 +0000 | [diff] [blame] | 602 | #ifdef CONFIG_PROC_FS |
| 603 | void bond_create_proc_entry(struct bonding *bond); |
| 604 | void bond_remove_proc_entry(struct bonding *bond); |
| 605 | void bond_create_proc_dir(struct bond_net *bn); |
| 606 | void bond_destroy_proc_dir(struct bond_net *bn); |
| 607 | #else |
| 608 | static inline void bond_create_proc_entry(struct bonding *bond) |
| 609 | { |
| 610 | } |
| 611 | |
| 612 | static inline void bond_remove_proc_entry(struct bonding *bond) |
| 613 | { |
| 614 | } |
| 615 | |
| 616 | static inline void bond_create_proc_dir(struct bond_net *bn) |
| 617 | { |
| 618 | } |
| 619 | |
| 620 | static inline void bond_destroy_proc_dir(struct bond_net *bn) |
| 621 | { |
| 622 | } |
| 623 | #endif |
| 624 | |
zheng.li | 567b871 | 2012-11-27 23:57:04 +0000 | [diff] [blame] | 625 | static inline struct slave *bond_slave_has_mac(struct bonding *bond, |
| 626 | const u8 *mac) |
| 627 | { |
Veaceslav Falico | 9caff1e7 | 2013-09-25 09:20:14 +0200 | [diff] [blame] | 628 | struct list_head *iter; |
zheng.li | 567b871 | 2012-11-27 23:57:04 +0000 | [diff] [blame] | 629 | struct slave *tmp; |
| 630 | |
Veaceslav Falico | 9caff1e7 | 2013-09-25 09:20:14 +0200 | [diff] [blame] | 631 | bond_for_each_slave(bond, tmp, iter) |
zheng.li | 567b871 | 2012-11-27 23:57:04 +0000 | [diff] [blame] | 632 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) |
| 633 | return tmp; |
| 634 | |
| 635 | return NULL; |
| 636 | } |
Amerigo Wang | bd33acc | 2011-03-06 21:58:46 +0000 | [diff] [blame] | 637 | |
dingtianhong | 28c7192 | 2013-10-15 16:28:39 +0800 | [diff] [blame] | 638 | /* Caller must hold rcu_read_lock() for read */ |
| 639 | static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond, |
| 640 | const u8 *mac) |
| 641 | { |
| 642 | struct list_head *iter; |
| 643 | struct slave *tmp; |
| 644 | |
| 645 | bond_for_each_slave_rcu(bond, tmp, iter) |
| 646 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) |
| 647 | return tmp; |
| 648 | |
| 649 | return NULL; |
| 650 | } |
| 651 | |
Vlad Yasevich | 14af996 | 2014-06-04 16:23:38 -0400 | [diff] [blame] | 652 | /* Caller must hold rcu_read_lock() for read */ |
| 653 | static inline bool bond_slave_has_mac_rx(struct bonding *bond, const u8 *mac) |
| 654 | { |
| 655 | struct list_head *iter; |
| 656 | struct slave *tmp; |
| 657 | struct netdev_hw_addr *ha; |
| 658 | |
| 659 | bond_for_each_slave_rcu(bond, tmp, iter) |
| 660 | if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) |
| 661 | return true; |
| 662 | |
| 663 | if (netdev_uc_empty(bond->dev)) |
| 664 | return false; |
| 665 | |
| 666 | netdev_for_each_uc_addr(ha, bond->dev) |
| 667 | if (ether_addr_equal_64bits(mac, ha->addr)) |
| 668 | return true; |
| 669 | |
| 670 | return false; |
| 671 | } |
| 672 | |
Veaceslav Falico | 87a7b84 | 2013-06-24 11:49:29 +0200 | [diff] [blame] | 673 | /* Check if the ip is present in arp ip list, or first free slot if ip == 0 |
| 674 | * Returns -1 if not found, index if found |
| 675 | */ |
| 676 | static inline int bond_get_targets_ip(__be32 *targets, __be32 ip) |
| 677 | { |
| 678 | int i; |
| 679 | |
| 680 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) |
| 681 | if (targets[i] == ip) |
| 682 | return i; |
| 683 | else if (targets[i] == 0) |
| 684 | break; |
| 685 | |
| 686 | return -1; |
| 687 | } |
| 688 | |
Ben Dooks | b225967 | 2008-09-14 16:56:12 +0100 | [diff] [blame] | 689 | /* exported from bond_main.c */ |
Eric W. Biederman | ec87fd3 | 2009-10-29 14:18:26 +0000 | [diff] [blame] | 690 | extern int bond_net_id; |
Holger Eitzenberger | e97fd7c | 2008-12-09 23:10:38 -0800 | [diff] [blame] | 691 | extern const struct bond_parm_tbl bond_lacp_tbl[]; |
Holger Eitzenberger | e97fd7c | 2008-12-09 23:10:38 -0800 | [diff] [blame] | 692 | extern const struct bond_parm_tbl xmit_hashtype_tbl[]; |
| 693 | extern const struct bond_parm_tbl arp_validate_tbl[]; |
Veaceslav Falico | 8599b52 | 2013-06-24 11:49:34 +0200 | [diff] [blame] | 694 | extern const struct bond_parm_tbl arp_all_targets_tbl[]; |
Holger Eitzenberger | e97fd7c | 2008-12-09 23:10:38 -0800 | [diff] [blame] | 695 | extern const struct bond_parm_tbl fail_over_mac_tbl[]; |
Jiri Pirko | a549952 | 2009-09-25 03:28:09 +0000 | [diff] [blame] | 696 | extern const struct bond_parm_tbl pri_reselect_tbl[]; |
Hannes Eder | b06715b | 2008-12-25 23:58:57 -0800 | [diff] [blame] | 697 | extern struct bond_parm_tbl ad_select_tbl[]; |
| 698 | |
Jiri Pirko | 0a2a78c | 2013-10-18 17:43:33 +0200 | [diff] [blame] | 699 | /* exported from bond_netlink.c */ |
| 700 | extern struct rtnl_link_ops bond_link_ops; |
| 701 | |
Eric Dumazet | 31aa860 | 2014-10-31 11:47:54 -0700 | [diff] [blame] | 702 | static inline void bond_tx_drop(struct net_device *dev, struct sk_buff *skb) |
| 703 | { |
| 704 | atomic_long_inc(&dev->tx_dropped); |
| 705 | dev_kfree_skb_any(skb); |
| 706 | } |
| 707 | |
David S. Miller | 1ef8019 | 2014-11-10 13:27:49 -0500 | [diff] [blame] | 708 | #endif /* _NET_BONDING_H */ |