11ef8019bSDavid S. Miller /* 21ef8019bSDavid S. Miller * Bond several ethernet interfaces into a Cisco, running 'Etherchannel'. 31ef8019bSDavid S. Miller * 41ef8019bSDavid S. Miller * Portions are (c) Copyright 1995 Simon "Guru Aleph-Null" Janes 51ef8019bSDavid S. Miller * NCM: Network and Communications Management, Inc. 61ef8019bSDavid S. Miller * 71ef8019bSDavid S. Miller * BUT, I'm the one who modified it for ethernet, so: 81ef8019bSDavid S. Miller * (c) Copyright 1999, Thomas Davis, tadavis@lbl.gov 91ef8019bSDavid S. Miller * 101ef8019bSDavid S. Miller * This software may be used and distributed according to the terms 111ef8019bSDavid S. Miller * of the GNU Public License, incorporated herein by reference. 121ef8019bSDavid S. Miller * 131ef8019bSDavid S. Miller */ 141ef8019bSDavid S. Miller 151ef8019bSDavid S. Miller #ifndef _NET_BONDING_H 161ef8019bSDavid S. Miller #define _NET_BONDING_H 171ef8019bSDavid S. Miller 181ef8019bSDavid S. Miller #include <linux/timer.h> 191ef8019bSDavid S. Miller #include <linux/proc_fs.h> 201ef8019bSDavid S. Miller #include <linux/if_bonding.h> 211ef8019bSDavid S. Miller #include <linux/cpumask.h> 221ef8019bSDavid S. Miller #include <linux/in6.h> 231ef8019bSDavid S. Miller #include <linux/netpoll.h> 241ef8019bSDavid S. Miller #include <linux/inetdevice.h> 251ef8019bSDavid S. Miller #include <linux/etherdevice.h> 261ef8019bSDavid S. Miller #include <linux/reciprocal_div.h> 271ef8019bSDavid S. Miller #include <linux/if_link.h> 281ef8019bSDavid S. Miller 291ef8019bSDavid S. Miller #include <net/bond_3ad.h> 301ef8019bSDavid S. Miller #include <net/bond_alb.h> 311ef8019bSDavid S. Miller #include <net/bond_options.h> 321ef8019bSDavid S. Miller 331ef8019bSDavid S. Miller #define BOND_MAX_ARP_TARGETS 16 341ef8019bSDavid S. Miller 351ef8019bSDavid S. Miller #define BOND_DEFAULT_MIIMON 100 361ef8019bSDavid S. Miller 37f87fda00SEric Dumazet #ifndef __long_aligned 38f87fda00SEric Dumazet #define __long_aligned __attribute__((aligned((sizeof(long))))) 39f87fda00SEric Dumazet #endif 401ef8019bSDavid S. Miller 415237ff79SJarod Wilson #define slave_info(bond_dev, slave_dev, fmt, ...) \ 425237ff79SJarod Wilson netdev_info(bond_dev, "(slave %s): " fmt, (slave_dev)->name, ##__VA_ARGS__) 435237ff79SJarod Wilson #define slave_warn(bond_dev, slave_dev, fmt, ...) \ 445237ff79SJarod Wilson netdev_warn(bond_dev, "(slave %s): " fmt, (slave_dev)->name, ##__VA_ARGS__) 455237ff79SJarod Wilson #define slave_dbg(bond_dev, slave_dev, fmt, ...) \ 465237ff79SJarod Wilson netdev_dbg(bond_dev, "(slave %s): " fmt, (slave_dev)->name, ##__VA_ARGS__) 475237ff79SJarod Wilson #define slave_err(bond_dev, slave_dev, fmt, ...) \ 485237ff79SJarod Wilson netdev_err(bond_dev, "(slave %s): " fmt, (slave_dev)->name, ##__VA_ARGS__) 495237ff79SJarod Wilson 501ef8019bSDavid S. Miller #define BOND_MODE(bond) ((bond)->params.mode) 511ef8019bSDavid S. Miller 521ef8019bSDavid S. Miller /* slave list primitives */ 531ef8019bSDavid S. Miller #define bond_slave_list(bond) (&(bond)->dev->adj_list.lower) 541ef8019bSDavid S. Miller 551ef8019bSDavid S. Miller #define bond_has_slaves(bond) !list_empty(bond_slave_list(bond)) 561ef8019bSDavid S. Miller 571ef8019bSDavid S. Miller /* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */ 581ef8019bSDavid S. Miller #define bond_first_slave(bond) \ 591ef8019bSDavid S. Miller (bond_has_slaves(bond) ? \ 601ef8019bSDavid S. Miller netdev_adjacent_get_private(bond_slave_list(bond)->next) : \ 611ef8019bSDavid S. Miller NULL) 621ef8019bSDavid S. Miller #define bond_last_slave(bond) \ 631ef8019bSDavid S. Miller (bond_has_slaves(bond) ? \ 641ef8019bSDavid S. Miller netdev_adjacent_get_private(bond_slave_list(bond)->prev) : \ 651ef8019bSDavid S. Miller NULL) 661ef8019bSDavid S. Miller 671ef8019bSDavid S. Miller /* Caller must have rcu_read_lock */ 681ef8019bSDavid S. Miller #define bond_first_slave_rcu(bond) \ 691ef8019bSDavid S. Miller netdev_lower_get_first_private_rcu(bond->dev) 701ef8019bSDavid S. Miller 711ef8019bSDavid S. Miller #define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond)) 721ef8019bSDavid S. Miller #define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond)) 731ef8019bSDavid S. Miller 741ef8019bSDavid S. Miller /** 751ef8019bSDavid S. Miller * bond_for_each_slave - iterate over all slaves 761ef8019bSDavid S. Miller * @bond: the bond holding this list 771ef8019bSDavid S. Miller * @pos: current slave 781ef8019bSDavid S. Miller * @iter: list_head * iterator 791ef8019bSDavid S. Miller * 801ef8019bSDavid S. Miller * Caller must hold RTNL 811ef8019bSDavid S. Miller */ 821ef8019bSDavid S. Miller #define bond_for_each_slave(bond, pos, iter) \ 831ef8019bSDavid S. Miller netdev_for_each_lower_private((bond)->dev, pos, iter) 841ef8019bSDavid S. Miller 851ef8019bSDavid S. Miller /* Caller must have rcu_read_lock */ 861ef8019bSDavid S. Miller #define bond_for_each_slave_rcu(bond, pos, iter) \ 871ef8019bSDavid S. Miller netdev_for_each_lower_private_rcu((bond)->dev, pos, iter) 881ef8019bSDavid S. Miller 89a3b658cfSJarod Wilson #define BOND_XFRM_FEATURES (NETIF_F_HW_ESP | NETIF_F_HW_ESP_TX_CSUM | \ 90a3b658cfSJarod Wilson NETIF_F_GSO_ESP) 91a3b658cfSJarod Wilson 92dc5809f9STariq Toukan #define BOND_TLS_FEATURES (NETIF_F_HW_TLS_TX | NETIF_F_HW_TLS_RX) 9389df6a81STariq Toukan 941ef8019bSDavid S. Miller #ifdef CONFIG_NET_POLL_CONTROLLER 951ef8019bSDavid S. Miller extern atomic_t netpoll_block_tx; 961ef8019bSDavid S. Miller 971ef8019bSDavid S. Miller static inline void block_netpoll_tx(void) 981ef8019bSDavid S. Miller { 991ef8019bSDavid S. Miller atomic_inc(&netpoll_block_tx); 1001ef8019bSDavid S. Miller } 1011ef8019bSDavid S. Miller 1021ef8019bSDavid S. Miller static inline void unblock_netpoll_tx(void) 1031ef8019bSDavid S. Miller { 1041ef8019bSDavid S. Miller atomic_dec(&netpoll_block_tx); 1051ef8019bSDavid S. Miller } 1061ef8019bSDavid S. Miller 1071ef8019bSDavid S. Miller static inline int is_netpoll_tx_blocked(struct net_device *dev) 1081ef8019bSDavid S. Miller { 1091ef8019bSDavid S. Miller if (unlikely(netpoll_tx_running(dev))) 1101ef8019bSDavid S. Miller return atomic_read(&netpoll_block_tx); 1111ef8019bSDavid S. Miller return 0; 1121ef8019bSDavid S. Miller } 1131ef8019bSDavid S. Miller #else 1141ef8019bSDavid S. Miller #define block_netpoll_tx() 1151ef8019bSDavid S. Miller #define unblock_netpoll_tx() 1161ef8019bSDavid S. Miller #define is_netpoll_tx_blocked(dev) (0) 1171ef8019bSDavid S. Miller #endif 1181ef8019bSDavid S. Miller 1191ef8019bSDavid S. Miller struct bond_params { 1201ef8019bSDavid S. Miller int mode; 1211ef8019bSDavid S. Miller int xmit_policy; 1221ef8019bSDavid S. Miller int miimon; 1231ef8019bSDavid S. Miller u8 num_peer_notif; 1241ef8019bSDavid S. Miller int arp_interval; 1251ef8019bSDavid S. Miller int arp_validate; 1261ef8019bSDavid S. Miller int arp_all_targets; 1271ef8019bSDavid S. Miller int use_carrier; 1281ef8019bSDavid S. Miller int fail_over_mac; 1291ef8019bSDavid S. Miller int updelay; 1301ef8019bSDavid S. Miller int downdelay; 13107a4ddecSVincent Bernat int peer_notif_delay; 1321ef8019bSDavid S. Miller int lacp_fast; 1331ef8019bSDavid S. Miller unsigned int min_links; 1341ef8019bSDavid S. Miller int ad_select; 1351ef8019bSDavid S. Miller char primary[IFNAMSIZ]; 1361ef8019bSDavid S. Miller int primary_reselect; 1371ef8019bSDavid S. Miller __be32 arp_targets[BOND_MAX_ARP_TARGETS]; 1381ef8019bSDavid S. Miller int tx_queues; 1391ef8019bSDavid S. Miller int all_slaves_active; 1401ef8019bSDavid S. Miller int resend_igmp; 1411ef8019bSDavid S. Miller int lp_interval; 1421ef8019bSDavid S. Miller int packets_per_slave; 1431ef8019bSDavid S. Miller int tlb_dynamic_lb; 1441ef8019bSDavid S. Miller struct reciprocal_value reciprocal_packets_per_slave; 1456791e466SMahesh Bandewar u16 ad_actor_sys_prio; 146d22a5fc0SMahesh Bandewar u16 ad_user_port_key; 147f87fda00SEric Dumazet 148f87fda00SEric Dumazet /* 2 bytes of padding : see ether_addr_equal_64bits() */ 149f87fda00SEric Dumazet u8 ad_actor_system[ETH_ALEN + 2]; 1501ef8019bSDavid S. Miller }; 1511ef8019bSDavid S. Miller 1521ef8019bSDavid S. Miller struct bond_parm_tbl { 1531ef8019bSDavid S. Miller char *modename; 1541ef8019bSDavid S. Miller int mode; 1551ef8019bSDavid S. Miller }; 1561ef8019bSDavid S. Miller 1571ef8019bSDavid S. Miller struct slave { 1581ef8019bSDavid S. Miller struct net_device *dev; /* first - useful for panic debug */ 1591ef8019bSDavid S. Miller struct bonding *bond; /* our master */ 1601ef8019bSDavid S. Miller int delay; 1611ef8019bSDavid S. Miller /* all three in jiffies */ 1621ef8019bSDavid S. Miller unsigned long last_link_up; 1631ef8019bSDavid S. Miller unsigned long last_rx; 1641ef8019bSDavid S. Miller unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS]; 1651ef8019bSDavid S. Miller s8 link; /* one of BOND_LINK_XXXX */ 166f307668bSMahesh Bandewar s8 link_new_state; /* one of BOND_LINK_XXXX */ 1671ef8019bSDavid S. Miller u8 backup:1, /* indicates backup slave. Value corresponds with 1681ef8019bSDavid S. Miller BOND_STATE_ACTIVE and BOND_STATE_BACKUP */ 1691ef8019bSDavid S. Miller inactive:1, /* indicates inactive slave */ 1705d397061SJiri Pirko should_notify:1, /* indicates whether the state changed */ 1715d397061SJiri Pirko should_notify_link:1; /* indicates whether the link changed */ 1721ef8019bSDavid S. Miller u8 duplex; 1731ef8019bSDavid S. Miller u32 original_mtu; 1741ef8019bSDavid S. Miller u32 link_failure_count; 1751ef8019bSDavid S. Miller u32 speed; 1761ef8019bSDavid S. Miller u16 queue_id; 177faeeb317SJarod Wilson u8 perm_hwaddr[MAX_ADDR_LEN]; 1781ef8019bSDavid S. Miller struct ad_slave_info *ad_info; 1791ef8019bSDavid S. Miller struct tlb_slave_info tlb_info; 1801ef8019bSDavid S. Miller #ifdef CONFIG_NET_POLL_CONTROLLER 1811ef8019bSDavid S. Miller struct netpoll *np; 1821ef8019bSDavid S. Miller #endif 183d4859d74SMahesh Bandewar struct delayed_work notify_work; 1841ef8019bSDavid S. Miller struct kobject kobj; 1851ef8019bSDavid S. Miller struct rtnl_link_stats64 slave_stats; 1861ef8019bSDavid S. Miller }; 1871ef8019bSDavid S. Miller 188b9ad3e9fSJamie Iles static inline struct slave *to_slave(struct kobject *kobj) 189b9ad3e9fSJamie Iles { 190b9ad3e9fSJamie Iles return container_of(kobj, struct slave, kobj); 191b9ad3e9fSJamie Iles } 192b9ad3e9fSJamie Iles 1931ef8019bSDavid S. Miller struct bond_up_slave { 1941ef8019bSDavid S. Miller unsigned int count; 1951ef8019bSDavid S. Miller struct rcu_head rcu; 196749db093SGustavo A. R. Silva struct slave *arr[]; 1971ef8019bSDavid S. Miller }; 1981ef8019bSDavid S. Miller 1991ef8019bSDavid S. Miller /* 2001ef8019bSDavid S. Miller * Link pseudo-state only used internally by monitors 2011ef8019bSDavid S. Miller */ 2021ef8019bSDavid S. Miller #define BOND_LINK_NOCHANGE -1 2031ef8019bSDavid S. Miller 2041ef8019bSDavid S. Miller /* 2051ef8019bSDavid S. Miller * Here are the locking policies for the two bonding locks: 2061ef8019bSDavid S. Miller * Get rcu_read_lock when reading or RTNL when writing slave list. 2071ef8019bSDavid S. Miller */ 2081ef8019bSDavid S. Miller struct bonding { 2091ef8019bSDavid S. Miller struct net_device *dev; /* first - useful for panic debug */ 2101ef8019bSDavid S. Miller struct slave __rcu *curr_active_slave; 2111ef8019bSDavid S. Miller struct slave __rcu *current_arp_slave; 2121ef8019bSDavid S. Miller struct slave __rcu *primary_slave; 2136b447e76SMaor Gottlieb struct bond_up_slave __rcu *usable_slaves; 2146b447e76SMaor Gottlieb struct bond_up_slave __rcu *all_slaves; 2151ef8019bSDavid S. Miller bool force_primary; 2161ef8019bSDavid S. Miller s32 slave_cnt; /* never change this value outside the attach/detach wrappers */ 2171ef8019bSDavid S. Miller int (*recv_probe)(const struct sk_buff *, struct bonding *, 2181ef8019bSDavid S. Miller struct slave *); 2191ef8019bSDavid S. Miller /* mode_lock is used for mode-specific locking needs, currently used by: 2201ef8019bSDavid S. Miller * 3ad mode (4) - protect against running bond_3ad_unbind_slave() and 2211ef8019bSDavid S. Miller * bond_3ad_state_machine_handler() concurrently and also 2221ef8019bSDavid S. Miller * the access to the state machine shared variables. 2231ef8019bSDavid S. Miller * TLB mode (5) - to sync the use and modifications of its hash table 2241ef8019bSDavid S. Miller * ALB mode (6) - to sync the use and modifications of its hash table 2251ef8019bSDavid S. Miller */ 2261ef8019bSDavid S. Miller spinlock_t mode_lock; 227fe30937bSEric Dumazet spinlock_t stats_lock; 2281ef8019bSDavid S. Miller u8 send_peer_notif; 2291ef8019bSDavid S. Miller u8 igmp_retrans; 2301ef8019bSDavid S. Miller #ifdef CONFIG_PROC_FS 2311ef8019bSDavid S. Miller struct proc_dir_entry *proc_entry; 2321ef8019bSDavid S. Miller char proc_file_name[IFNAMSIZ]; 2331ef8019bSDavid S. Miller #endif /* CONFIG_PROC_FS */ 2341ef8019bSDavid S. Miller struct list_head bond_list; 235*848ca918SJussi Maki u32 __percpu *rr_tx_counter; 2361ef8019bSDavid S. Miller struct ad_bond_info ad_info; 2371ef8019bSDavid S. Miller struct alb_bond_info alb_info; 2381ef8019bSDavid S. Miller struct bond_params params; 2391ef8019bSDavid S. Miller struct workqueue_struct *wq; 2401ef8019bSDavid S. Miller struct delayed_work mii_work; 2411ef8019bSDavid S. Miller struct delayed_work arp_work; 2421ef8019bSDavid S. Miller struct delayed_work alb_work; 2431ef8019bSDavid S. Miller struct delayed_work ad_work; 2441ef8019bSDavid S. Miller struct delayed_work mcast_work; 2451ef8019bSDavid S. Miller struct delayed_work slave_arr_work; 2461ef8019bSDavid S. Miller #ifdef CONFIG_DEBUG_FS 2471ef8019bSDavid S. Miller /* debugging support via debugfs */ 2481ef8019bSDavid S. Miller struct dentry *debug_dir; 2491ef8019bSDavid S. Miller #endif /* CONFIG_DEBUG_FS */ 2501ef8019bSDavid S. Miller struct rtnl_link_stats64 bond_stats; 25118cb261aSJarod Wilson #ifdef CONFIG_XFRM_OFFLOAD 25218cb261aSJarod Wilson struct xfrm_state *xs; 25318cb261aSJarod Wilson #endif /* CONFIG_XFRM_OFFLOAD */ 2541ef8019bSDavid S. Miller }; 2551ef8019bSDavid S. Miller 2561ef8019bSDavid S. Miller #define bond_slave_get_rcu(dev) \ 2571ef8019bSDavid S. Miller ((struct slave *) rcu_dereference(dev->rx_handler_data)) 2581ef8019bSDavid S. Miller 2591ef8019bSDavid S. Miller #define bond_slave_get_rtnl(dev) \ 2601ef8019bSDavid S. Miller ((struct slave *) rtnl_dereference(dev->rx_handler_data)) 2611ef8019bSDavid S. Miller 26269e61133SMoni Shoua void bond_queue_slave_event(struct slave *slave); 263f7c7eb7fSJiri Pirko void bond_lower_state_changed(struct slave *slave); 26469e61133SMoni Shoua 2651ef8019bSDavid S. Miller struct bond_vlan_tag { 2661ef8019bSDavid S. Miller __be16 vlan_proto; 2671ef8019bSDavid S. Miller unsigned short vlan_id; 2681ef8019bSDavid S. Miller }; 2691ef8019bSDavid S. Miller 270007feb87STariq Toukan bool bond_sk_check(struct bonding *bond); 271007feb87STariq Toukan 2721ef8019bSDavid S. Miller /** 2731ef8019bSDavid S. Miller * Returns NULL if the net_device does not belong to any of the bond's slaves 2741ef8019bSDavid S. Miller * 2751ef8019bSDavid S. Miller * Caller must hold bond lock for read 2761ef8019bSDavid S. Miller */ 2771ef8019bSDavid S. Miller static inline struct slave *bond_get_slave_by_dev(struct bonding *bond, 2781ef8019bSDavid S. Miller struct net_device *slave_dev) 2791ef8019bSDavid S. Miller { 2801ef8019bSDavid S. Miller return netdev_lower_dev_get_private(bond->dev, slave_dev); 2811ef8019bSDavid S. Miller } 2821ef8019bSDavid S. Miller 2831ef8019bSDavid S. Miller static inline struct bonding *bond_get_bond_by_slave(struct slave *slave) 2841ef8019bSDavid S. Miller { 2851ef8019bSDavid S. Miller return slave->bond; 2861ef8019bSDavid S. Miller } 2871ef8019bSDavid S. Miller 2881ef8019bSDavid S. Miller static inline bool bond_should_override_tx_queue(struct bonding *bond) 2891ef8019bSDavid S. Miller { 2901ef8019bSDavid S. Miller return BOND_MODE(bond) == BOND_MODE_ACTIVEBACKUP || 2911ef8019bSDavid S. Miller BOND_MODE(bond) == BOND_MODE_ROUNDROBIN; 2921ef8019bSDavid S. Miller } 2931ef8019bSDavid S. Miller 2941ef8019bSDavid S. Miller static inline bool bond_is_lb(const struct bonding *bond) 2951ef8019bSDavid S. Miller { 2961ef8019bSDavid S. Miller return BOND_MODE(bond) == BOND_MODE_TLB || 2971ef8019bSDavid S. Miller BOND_MODE(bond) == BOND_MODE_ALB; 2981ef8019bSDavid S. Miller } 2991ef8019bSDavid S. Miller 300ad729bc9SAndreas Born static inline bool bond_needs_speed_duplex(const struct bonding *bond) 301ad729bc9SAndreas Born { 302ad729bc9SAndreas Born return BOND_MODE(bond) == BOND_MODE_8023AD || bond_is_lb(bond); 303ad729bc9SAndreas Born } 304ad729bc9SAndreas Born 3051ef8019bSDavid S. Miller static inline bool bond_is_nondyn_tlb(const struct bonding *bond) 3061ef8019bSDavid S. Miller { 307e79c1055SDebabrata Banerjee return (bond_is_lb(bond) && bond->params.tlb_dynamic_lb == 0); 308e79c1055SDebabrata Banerjee } 309e79c1055SDebabrata Banerjee 310e79c1055SDebabrata Banerjee static inline bool bond_mode_can_use_xmit_hash(const struct bonding *bond) 311e79c1055SDebabrata Banerjee { 312e79c1055SDebabrata Banerjee return (BOND_MODE(bond) == BOND_MODE_8023AD || 313e79c1055SDebabrata Banerjee BOND_MODE(bond) == BOND_MODE_XOR || 314e79c1055SDebabrata Banerjee BOND_MODE(bond) == BOND_MODE_TLB || 315e79c1055SDebabrata Banerjee BOND_MODE(bond) == BOND_MODE_ALB); 3161ef8019bSDavid S. Miller } 3171ef8019bSDavid S. Miller 3181ef8019bSDavid S. Miller static inline bool bond_mode_uses_xmit_hash(const struct bonding *bond) 3191ef8019bSDavid S. Miller { 3201ef8019bSDavid S. Miller return (BOND_MODE(bond) == BOND_MODE_8023AD || 3211ef8019bSDavid S. Miller BOND_MODE(bond) == BOND_MODE_XOR || 3221ef8019bSDavid S. Miller bond_is_nondyn_tlb(bond)); 3231ef8019bSDavid S. Miller } 3241ef8019bSDavid S. Miller 3251ef8019bSDavid S. Miller static inline bool bond_mode_uses_arp(int mode) 3261ef8019bSDavid S. Miller { 3271ef8019bSDavid S. Miller return mode != BOND_MODE_8023AD && mode != BOND_MODE_TLB && 3281ef8019bSDavid S. Miller mode != BOND_MODE_ALB; 3291ef8019bSDavid S. Miller } 3301ef8019bSDavid S. Miller 3311ef8019bSDavid S. Miller static inline bool bond_mode_uses_primary(int mode) 3321ef8019bSDavid S. Miller { 3331ef8019bSDavid S. Miller return mode == BOND_MODE_ACTIVEBACKUP || mode == BOND_MODE_TLB || 3341ef8019bSDavid S. Miller mode == BOND_MODE_ALB; 3351ef8019bSDavid S. Miller } 3361ef8019bSDavid S. Miller 3371ef8019bSDavid S. Miller static inline bool bond_uses_primary(struct bonding *bond) 3381ef8019bSDavid S. Miller { 3391ef8019bSDavid S. Miller return bond_mode_uses_primary(BOND_MODE(bond)); 3401ef8019bSDavid S. Miller } 3411ef8019bSDavid S. Miller 342e9998695SMatan Barak static inline struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond) 343e9998695SMatan Barak { 344e9998695SMatan Barak struct slave *slave = rcu_dereference(bond->curr_active_slave); 345e9998695SMatan Barak 346e9998695SMatan Barak return bond_uses_primary(bond) && slave ? slave->dev : NULL; 347e9998695SMatan Barak } 348e9998695SMatan Barak 3491ef8019bSDavid S. Miller static inline bool bond_slave_is_up(struct slave *slave) 3501ef8019bSDavid S. Miller { 3511ef8019bSDavid S. Miller return netif_running(slave->dev) && netif_carrier_ok(slave->dev); 3521ef8019bSDavid S. Miller } 3531ef8019bSDavid S. Miller 3541ef8019bSDavid S. Miller static inline void bond_set_active_slave(struct slave *slave) 3551ef8019bSDavid S. Miller { 3561ef8019bSDavid S. Miller if (slave->backup) { 3571ef8019bSDavid S. Miller slave->backup = 0; 35869e61133SMoni Shoua bond_queue_slave_event(slave); 359f7c7eb7fSJiri Pirko bond_lower_state_changed(slave); 3601ef8019bSDavid S. Miller } 3611ef8019bSDavid S. Miller } 3621ef8019bSDavid S. Miller 3631ef8019bSDavid S. Miller static inline void bond_set_backup_slave(struct slave *slave) 3641ef8019bSDavid S. Miller { 3651ef8019bSDavid S. Miller if (!slave->backup) { 3661ef8019bSDavid S. Miller slave->backup = 1; 36769e61133SMoni Shoua bond_queue_slave_event(slave); 368f7c7eb7fSJiri Pirko bond_lower_state_changed(slave); 3691ef8019bSDavid S. Miller } 3701ef8019bSDavid S. Miller } 3711ef8019bSDavid S. Miller 3721ef8019bSDavid S. Miller static inline void bond_set_slave_state(struct slave *slave, 3731ef8019bSDavid S. Miller int slave_state, bool notify) 3741ef8019bSDavid S. Miller { 3751ef8019bSDavid S. Miller if (slave->backup == slave_state) 3761ef8019bSDavid S. Miller return; 3771ef8019bSDavid S. Miller 3781ef8019bSDavid S. Miller slave->backup = slave_state; 3791ef8019bSDavid S. Miller if (notify) { 380f7c7eb7fSJiri Pirko bond_lower_state_changed(slave); 38169e61133SMoni Shoua bond_queue_slave_event(slave); 3821ef8019bSDavid S. Miller slave->should_notify = 0; 3831ef8019bSDavid S. Miller } else { 3841ef8019bSDavid S. Miller if (slave->should_notify) 3851ef8019bSDavid S. Miller slave->should_notify = 0; 3861ef8019bSDavid S. Miller else 3871ef8019bSDavid S. Miller slave->should_notify = 1; 3881ef8019bSDavid S. Miller } 3891ef8019bSDavid S. Miller } 3901ef8019bSDavid S. Miller 3911ef8019bSDavid S. Miller static inline void bond_slave_state_change(struct bonding *bond) 3921ef8019bSDavid S. Miller { 3931ef8019bSDavid S. Miller struct list_head *iter; 3941ef8019bSDavid S. Miller struct slave *tmp; 3951ef8019bSDavid S. Miller 3961ef8019bSDavid S. Miller bond_for_each_slave(bond, tmp, iter) { 3971ef8019bSDavid S. Miller if (tmp->link == BOND_LINK_UP) 3981ef8019bSDavid S. Miller bond_set_active_slave(tmp); 3991ef8019bSDavid S. Miller else if (tmp->link == BOND_LINK_DOWN) 4001ef8019bSDavid S. Miller bond_set_backup_slave(tmp); 4011ef8019bSDavid S. Miller } 4021ef8019bSDavid S. Miller } 4031ef8019bSDavid S. Miller 4041ef8019bSDavid S. Miller static inline void bond_slave_state_notify(struct bonding *bond) 4051ef8019bSDavid S. Miller { 4061ef8019bSDavid S. Miller struct list_head *iter; 4071ef8019bSDavid S. Miller struct slave *tmp; 4081ef8019bSDavid S. Miller 4091ef8019bSDavid S. Miller bond_for_each_slave(bond, tmp, iter) { 4101ef8019bSDavid S. Miller if (tmp->should_notify) { 411f7c7eb7fSJiri Pirko bond_lower_state_changed(tmp); 4121ef8019bSDavid S. Miller tmp->should_notify = 0; 4131ef8019bSDavid S. Miller } 4141ef8019bSDavid S. Miller } 4151ef8019bSDavid S. Miller } 4161ef8019bSDavid S. Miller 4171ef8019bSDavid S. Miller static inline int bond_slave_state(struct slave *slave) 4181ef8019bSDavid S. Miller { 4191ef8019bSDavid S. Miller return slave->backup; 4201ef8019bSDavid S. Miller } 4211ef8019bSDavid S. Miller 4221ef8019bSDavid S. Miller static inline bool bond_is_active_slave(struct slave *slave) 4231ef8019bSDavid S. Miller { 4241ef8019bSDavid S. Miller return !bond_slave_state(slave); 4251ef8019bSDavid S. Miller } 4261ef8019bSDavid S. Miller 4271ef8019bSDavid S. Miller static inline bool bond_slave_can_tx(struct slave *slave) 4281ef8019bSDavid S. Miller { 4291ef8019bSDavid S. Miller return bond_slave_is_up(slave) && slave->link == BOND_LINK_UP && 4301ef8019bSDavid S. Miller bond_is_active_slave(slave); 4311ef8019bSDavid S. Miller } 4321ef8019bSDavid S. Miller 433eeed992bSPetr Machata static inline bool bond_is_active_slave_dev(const struct net_device *slave_dev) 434eeed992bSPetr Machata { 435eeed992bSPetr Machata struct slave *slave; 436eeed992bSPetr Machata bool active; 437eeed992bSPetr Machata 438eeed992bSPetr Machata rcu_read_lock(); 439eeed992bSPetr Machata slave = bond_slave_get_rcu(slave_dev); 440eeed992bSPetr Machata active = bond_is_active_slave(slave); 441eeed992bSPetr Machata rcu_read_unlock(); 442eeed992bSPetr Machata 443eeed992bSPetr Machata return active; 444eeed992bSPetr Machata } 445eeed992bSPetr Machata 446faeeb317SJarod Wilson static inline void bond_hw_addr_copy(u8 *dst, const u8 *src, unsigned int len) 447faeeb317SJarod Wilson { 448faeeb317SJarod Wilson if (len == ETH_ALEN) { 449faeeb317SJarod Wilson ether_addr_copy(dst, src); 450faeeb317SJarod Wilson return; 451faeeb317SJarod Wilson } 452faeeb317SJarod Wilson 453faeeb317SJarod Wilson memcpy(dst, src, len); 454faeeb317SJarod Wilson } 455faeeb317SJarod Wilson 4561ef8019bSDavid S. Miller #define BOND_PRI_RESELECT_ALWAYS 0 4571ef8019bSDavid S. Miller #define BOND_PRI_RESELECT_BETTER 1 4581ef8019bSDavid S. Miller #define BOND_PRI_RESELECT_FAILURE 2 4591ef8019bSDavid S. Miller 4601ef8019bSDavid S. Miller #define BOND_FOM_NONE 0 4611ef8019bSDavid S. Miller #define BOND_FOM_ACTIVE 1 4621ef8019bSDavid S. Miller #define BOND_FOM_FOLLOW 2 4631ef8019bSDavid S. Miller 4641ef8019bSDavid S. Miller #define BOND_ARP_TARGETS_ANY 0 4651ef8019bSDavid S. Miller #define BOND_ARP_TARGETS_ALL 1 4661ef8019bSDavid S. Miller 4671ef8019bSDavid S. Miller #define BOND_ARP_VALIDATE_NONE 0 4681ef8019bSDavid S. Miller #define BOND_ARP_VALIDATE_ACTIVE (1 << BOND_STATE_ACTIVE) 4691ef8019bSDavid S. Miller #define BOND_ARP_VALIDATE_BACKUP (1 << BOND_STATE_BACKUP) 4701ef8019bSDavid S. Miller #define BOND_ARP_VALIDATE_ALL (BOND_ARP_VALIDATE_ACTIVE | \ 4711ef8019bSDavid S. Miller BOND_ARP_VALIDATE_BACKUP) 4721ef8019bSDavid S. Miller #define BOND_ARP_FILTER (BOND_ARP_VALIDATE_ALL + 1) 4731ef8019bSDavid S. Miller #define BOND_ARP_FILTER_ACTIVE (BOND_ARP_VALIDATE_ACTIVE | \ 4741ef8019bSDavid S. Miller BOND_ARP_FILTER) 4751ef8019bSDavid S. Miller #define BOND_ARP_FILTER_BACKUP (BOND_ARP_VALIDATE_BACKUP | \ 4761ef8019bSDavid S. Miller BOND_ARP_FILTER) 4771ef8019bSDavid S. Miller 4781ef8019bSDavid S. Miller #define BOND_SLAVE_NOTIFY_NOW true 4791ef8019bSDavid S. Miller #define BOND_SLAVE_NOTIFY_LATER false 4801ef8019bSDavid S. Miller 4811ef8019bSDavid S. Miller static inline int slave_do_arp_validate(struct bonding *bond, 4821ef8019bSDavid S. Miller struct slave *slave) 4831ef8019bSDavid S. Miller { 4841ef8019bSDavid S. Miller return bond->params.arp_validate & (1 << bond_slave_state(slave)); 4851ef8019bSDavid S. Miller } 4861ef8019bSDavid S. Miller 4871ef8019bSDavid S. Miller static inline int slave_do_arp_validate_only(struct bonding *bond) 4881ef8019bSDavid S. Miller { 4891ef8019bSDavid S. Miller return bond->params.arp_validate & BOND_ARP_FILTER; 4901ef8019bSDavid S. Miller } 4911ef8019bSDavid S. Miller 4921ef8019bSDavid S. Miller static inline int bond_is_ip_target_ok(__be32 addr) 4931ef8019bSDavid S. Miller { 4941ef8019bSDavid S. Miller return !ipv4_is_lbcast(addr) && !ipv4_is_zeronet(addr); 4951ef8019bSDavid S. Miller } 4961ef8019bSDavid S. Miller 4971ef8019bSDavid S. Miller /* Get the oldest arp which we've received on this slave for bond's 4981ef8019bSDavid S. Miller * arp_targets. 4991ef8019bSDavid S. Miller */ 5001ef8019bSDavid S. Miller static inline unsigned long slave_oldest_target_arp_rx(struct bonding *bond, 5011ef8019bSDavid S. Miller struct slave *slave) 5021ef8019bSDavid S. Miller { 5031ef8019bSDavid S. Miller int i = 1; 5041ef8019bSDavid S. Miller unsigned long ret = slave->target_last_arp_rx[0]; 5051ef8019bSDavid S. Miller 5061ef8019bSDavid S. Miller for (; (i < BOND_MAX_ARP_TARGETS) && bond->params.arp_targets[i]; i++) 5071ef8019bSDavid S. Miller if (time_before(slave->target_last_arp_rx[i], ret)) 5081ef8019bSDavid S. Miller ret = slave->target_last_arp_rx[i]; 5091ef8019bSDavid S. Miller 5101ef8019bSDavid S. Miller return ret; 5111ef8019bSDavid S. Miller } 5121ef8019bSDavid S. Miller 5131ef8019bSDavid S. Miller static inline unsigned long slave_last_rx(struct bonding *bond, 5141ef8019bSDavid S. Miller struct slave *slave) 5151ef8019bSDavid S. Miller { 5161ef8019bSDavid S. Miller if (bond->params.arp_all_targets == BOND_ARP_TARGETS_ALL) 5171ef8019bSDavid S. Miller return slave_oldest_target_arp_rx(bond, slave); 5181ef8019bSDavid S. Miller 5191ef8019bSDavid S. Miller return slave->last_rx; 5201ef8019bSDavid S. Miller } 5211ef8019bSDavid S. Miller 5221ef8019bSDavid S. Miller #ifdef CONFIG_NET_POLL_CONTROLLER 523ae46f184SEric Dumazet static inline netdev_tx_t bond_netpoll_send_skb(const struct slave *slave, 5241ef8019bSDavid S. Miller struct sk_buff *skb) 5251ef8019bSDavid S. Miller { 526ae46f184SEric Dumazet return netpoll_send_skb(slave->np, skb); 5271ef8019bSDavid S. Miller } 5281ef8019bSDavid S. Miller #else 529ae46f184SEric Dumazet static inline netdev_tx_t bond_netpoll_send_skb(const struct slave *slave, 5301ef8019bSDavid S. Miller struct sk_buff *skb) 5311ef8019bSDavid S. Miller { 532ae46f184SEric Dumazet BUG(); 533ae46f184SEric Dumazet return NETDEV_TX_OK; 5341ef8019bSDavid S. Miller } 5351ef8019bSDavid S. Miller #endif 5361ef8019bSDavid S. Miller 5371ef8019bSDavid S. Miller static inline void bond_set_slave_inactive_flags(struct slave *slave, 5381ef8019bSDavid S. Miller bool notify) 5391ef8019bSDavid S. Miller { 5401ef8019bSDavid S. Miller if (!bond_is_lb(slave->bond)) 5411ef8019bSDavid S. Miller bond_set_slave_state(slave, BOND_STATE_BACKUP, notify); 5421ef8019bSDavid S. Miller if (!slave->bond->params.all_slaves_active) 5431ef8019bSDavid S. Miller slave->inactive = 1; 5441ef8019bSDavid S. Miller } 5451ef8019bSDavid S. Miller 5461ef8019bSDavid S. Miller static inline void bond_set_slave_active_flags(struct slave *slave, 5471ef8019bSDavid S. Miller bool notify) 5481ef8019bSDavid S. Miller { 5491ef8019bSDavid S. Miller bond_set_slave_state(slave, BOND_STATE_ACTIVE, notify); 5501ef8019bSDavid S. Miller slave->inactive = 0; 5511ef8019bSDavid S. Miller } 5521ef8019bSDavid S. Miller 5531ef8019bSDavid S. Miller static inline bool bond_is_slave_inactive(struct slave *slave) 5541ef8019bSDavid S. Miller { 5551ef8019bSDavid S. Miller return slave->inactive; 5561ef8019bSDavid S. Miller } 5571ef8019bSDavid S. Miller 558f307668bSMahesh Bandewar static inline void bond_propose_link_state(struct slave *slave, int state) 55969a2338eSMoni Shoua { 560f307668bSMahesh Bandewar slave->link_new_state = state; 561f307668bSMahesh Bandewar } 562f307668bSMahesh Bandewar 563f307668bSMahesh Bandewar static inline void bond_commit_link_state(struct slave *slave, bool notify) 564f307668bSMahesh Bandewar { 5651899bb32SJay Vosburgh if (slave->link_new_state == BOND_LINK_NOCHANGE) 5665d397061SJiri Pirko return; 5675d397061SJiri Pirko 568f307668bSMahesh Bandewar slave->link = slave->link_new_state; 5695d397061SJiri Pirko if (notify) { 57069e61133SMoni Shoua bond_queue_slave_event(slave); 571f7c7eb7fSJiri Pirko bond_lower_state_changed(slave); 5725d397061SJiri Pirko slave->should_notify_link = 0; 5735d397061SJiri Pirko } else { 5745d397061SJiri Pirko if (slave->should_notify_link) 5755d397061SJiri Pirko slave->should_notify_link = 0; 5765d397061SJiri Pirko else 5775d397061SJiri Pirko slave->should_notify_link = 1; 5785d397061SJiri Pirko } 5795d397061SJiri Pirko } 5805d397061SJiri Pirko 581f307668bSMahesh Bandewar static inline void bond_set_slave_link_state(struct slave *slave, int state, 582f307668bSMahesh Bandewar bool notify) 583f307668bSMahesh Bandewar { 584f307668bSMahesh Bandewar bond_propose_link_state(slave, state); 585f307668bSMahesh Bandewar bond_commit_link_state(slave, notify); 586f307668bSMahesh Bandewar } 587f307668bSMahesh Bandewar 5885d397061SJiri Pirko static inline void bond_slave_link_notify(struct bonding *bond) 5895d397061SJiri Pirko { 5905d397061SJiri Pirko struct list_head *iter; 5915d397061SJiri Pirko struct slave *tmp; 5925d397061SJiri Pirko 5935d397061SJiri Pirko bond_for_each_slave(bond, tmp, iter) { 5945d397061SJiri Pirko if (tmp->should_notify_link) { 5955d397061SJiri Pirko bond_queue_slave_event(tmp); 596f7c7eb7fSJiri Pirko bond_lower_state_changed(tmp); 5975d397061SJiri Pirko tmp->should_notify_link = 0; 5985d397061SJiri Pirko } 5995d397061SJiri Pirko } 60069a2338eSMoni Shoua } 60169a2338eSMoni Shoua 6021ef8019bSDavid S. Miller static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local) 6031ef8019bSDavid S. Miller { 6041ef8019bSDavid S. Miller struct in_device *in_dev; 6051ef8019bSDavid S. Miller __be32 addr = 0; 6061ef8019bSDavid S. Miller 6071ef8019bSDavid S. Miller rcu_read_lock(); 6081ef8019bSDavid S. Miller in_dev = __in_dev_get_rcu(dev); 6091ef8019bSDavid S. Miller 6101ef8019bSDavid S. Miller if (in_dev) 6111ef8019bSDavid S. Miller addr = inet_confirm_addr(dev_net(dev), in_dev, dst, local, 6121ef8019bSDavid S. Miller RT_SCOPE_HOST); 6131ef8019bSDavid S. Miller rcu_read_unlock(); 6141ef8019bSDavid S. Miller return addr; 6151ef8019bSDavid S. Miller } 6161ef8019bSDavid S. Miller 6171ef8019bSDavid S. Miller struct bond_net { 6181ef8019bSDavid S. Miller struct net *net; /* Associated network namespace */ 6191ef8019bSDavid S. Miller struct list_head dev_list; 6201ef8019bSDavid S. Miller #ifdef CONFIG_PROC_FS 6211ef8019bSDavid S. Miller struct proc_dir_entry *proc_dir; 6221ef8019bSDavid S. Miller #endif 6231ef8019bSDavid S. Miller struct class_attribute class_attr_bonding_masters; 6241ef8019bSDavid S. Miller }; 6251ef8019bSDavid S. Miller 6261ef8019bSDavid S. Miller int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave); 627ae46f184SEric Dumazet netdev_tx_t bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev); 6281ef8019bSDavid S. Miller int bond_create(struct net *net, const char *name); 6291ef8019bSDavid S. Miller int bond_create_sysfs(struct bond_net *net); 6301ef8019bSDavid S. Miller void bond_destroy_sysfs(struct bond_net *net); 6311ef8019bSDavid S. Miller void bond_prepare_sysfs_group(struct bonding *bond); 6321ef8019bSDavid S. Miller int bond_sysfs_slave_add(struct slave *slave); 6331ef8019bSDavid S. Miller void bond_sysfs_slave_del(struct slave *slave); 63433eaf2a6SDavid Ahern int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev, 63533eaf2a6SDavid Ahern struct netlink_ext_ack *extack); 6361ef8019bSDavid S. Miller int bond_release(struct net_device *bond_dev, struct net_device *slave_dev); 6371ef8019bSDavid S. Miller u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb); 6382477bc9aSJonathan Toppins int bond_set_carrier(struct bonding *bond); 6391ef8019bSDavid S. Miller void bond_select_active_slave(struct bonding *bond); 6401ef8019bSDavid S. Miller void bond_change_active_slave(struct bonding *bond, struct slave *new_active); 6411ef8019bSDavid S. Miller void bond_create_debugfs(void); 6421ef8019bSDavid S. Miller void bond_destroy_debugfs(void); 6431ef8019bSDavid S. Miller void bond_debug_register(struct bonding *bond); 6441ef8019bSDavid S. Miller void bond_debug_unregister(struct bonding *bond); 6451ef8019bSDavid S. Miller void bond_debug_reregister(struct bonding *bond); 6461ef8019bSDavid S. Miller const char *bond_mode_name(int mode); 6471ef8019bSDavid S. Miller void bond_setup(struct net_device *bond_dev); 6481ef8019bSDavid S. Miller unsigned int bond_get_num_tx_queues(void); 6491ef8019bSDavid S. Miller int bond_netlink_init(void); 6501ef8019bSDavid S. Miller void bond_netlink_fini(void); 6511ef8019bSDavid S. Miller struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond); 6521ef8019bSDavid S. Miller const char *bond_slave_link_status(s8 link); 6531ef8019bSDavid S. Miller struct bond_vlan_tag *bond_verify_device_path(struct net_device *start_dev, 6541ef8019bSDavid S. Miller struct net_device *end_dev, 6551ef8019bSDavid S. Miller int level); 6561ef8019bSDavid S. Miller int bond_update_slave_arr(struct bonding *bond, struct slave *skipslave); 6571ef8019bSDavid S. Miller void bond_slave_arr_work_rearm(struct bonding *bond, unsigned long delay); 658ea8ffc08SMahesh Bandewar void bond_work_init_all(struct bonding *bond); 6591ef8019bSDavid S. Miller 6601ef8019bSDavid S. Miller #ifdef CONFIG_PROC_FS 6611ef8019bSDavid S. Miller void bond_create_proc_entry(struct bonding *bond); 6621ef8019bSDavid S. Miller void bond_remove_proc_entry(struct bonding *bond); 6631ef8019bSDavid S. Miller void bond_create_proc_dir(struct bond_net *bn); 6641ef8019bSDavid S. Miller void bond_destroy_proc_dir(struct bond_net *bn); 6651ef8019bSDavid S. Miller #else 6661ef8019bSDavid S. Miller static inline void bond_create_proc_entry(struct bonding *bond) 6671ef8019bSDavid S. Miller { 6681ef8019bSDavid S. Miller } 6691ef8019bSDavid S. Miller 6701ef8019bSDavid S. Miller static inline void bond_remove_proc_entry(struct bonding *bond) 6711ef8019bSDavid S. Miller { 6721ef8019bSDavid S. Miller } 6731ef8019bSDavid S. Miller 6741ef8019bSDavid S. Miller static inline void bond_create_proc_dir(struct bond_net *bn) 6751ef8019bSDavid S. Miller { 6761ef8019bSDavid S. Miller } 6771ef8019bSDavid S. Miller 6781ef8019bSDavid S. Miller static inline void bond_destroy_proc_dir(struct bond_net *bn) 6791ef8019bSDavid S. Miller { 6801ef8019bSDavid S. Miller } 6811ef8019bSDavid S. Miller #endif 6821ef8019bSDavid S. Miller 6831ef8019bSDavid S. Miller static inline struct slave *bond_slave_has_mac(struct bonding *bond, 6841ef8019bSDavid S. Miller const u8 *mac) 6851ef8019bSDavid S. Miller { 6861ef8019bSDavid S. Miller struct list_head *iter; 6871ef8019bSDavid S. Miller struct slave *tmp; 6881ef8019bSDavid S. Miller 6891ef8019bSDavid S. Miller bond_for_each_slave(bond, tmp, iter) 6901ef8019bSDavid S. Miller if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) 6911ef8019bSDavid S. Miller return tmp; 6921ef8019bSDavid S. Miller 6931ef8019bSDavid S. Miller return NULL; 6941ef8019bSDavid S. Miller } 6951ef8019bSDavid S. Miller 6961ef8019bSDavid S. Miller /* Caller must hold rcu_read_lock() for read */ 6971ef8019bSDavid S. Miller static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond, 6981ef8019bSDavid S. Miller const u8 *mac) 6991ef8019bSDavid S. Miller { 7001ef8019bSDavid S. Miller struct list_head *iter; 7011ef8019bSDavid S. Miller struct slave *tmp; 7021ef8019bSDavid S. Miller 7031ef8019bSDavid S. Miller bond_for_each_slave_rcu(bond, tmp, iter) 7041ef8019bSDavid S. Miller if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) 7051ef8019bSDavid S. Miller return tmp; 7061ef8019bSDavid S. Miller 7071ef8019bSDavid S. Miller return NULL; 7081ef8019bSDavid S. Miller } 7091ef8019bSDavid S. Miller 7101ef8019bSDavid S. Miller /* Caller must hold rcu_read_lock() for read */ 7111ef8019bSDavid S. Miller static inline bool bond_slave_has_mac_rx(struct bonding *bond, const u8 *mac) 7121ef8019bSDavid S. Miller { 7131ef8019bSDavid S. Miller struct list_head *iter; 7141ef8019bSDavid S. Miller struct slave *tmp; 7151ef8019bSDavid S. Miller struct netdev_hw_addr *ha; 7161ef8019bSDavid S. Miller 7171ef8019bSDavid S. Miller bond_for_each_slave_rcu(bond, tmp, iter) 7181ef8019bSDavid S. Miller if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr)) 7191ef8019bSDavid S. Miller return true; 7201ef8019bSDavid S. Miller 7211ef8019bSDavid S. Miller if (netdev_uc_empty(bond->dev)) 7221ef8019bSDavid S. Miller return false; 7231ef8019bSDavid S. Miller 7241ef8019bSDavid S. Miller netdev_for_each_uc_addr(ha, bond->dev) 7251ef8019bSDavid S. Miller if (ether_addr_equal_64bits(mac, ha->addr)) 7261ef8019bSDavid S. Miller return true; 7271ef8019bSDavid S. Miller 7281ef8019bSDavid S. Miller return false; 7291ef8019bSDavid S. Miller } 7301ef8019bSDavid S. Miller 7311ef8019bSDavid S. Miller /* Check if the ip is present in arp ip list, or first free slot if ip == 0 7321ef8019bSDavid S. Miller * Returns -1 if not found, index if found 7331ef8019bSDavid S. Miller */ 7341ef8019bSDavid S. Miller static inline int bond_get_targets_ip(__be32 *targets, __be32 ip) 7351ef8019bSDavid S. Miller { 7361ef8019bSDavid S. Miller int i; 7371ef8019bSDavid S. Miller 7381ef8019bSDavid S. Miller for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) 7391ef8019bSDavid S. Miller if (targets[i] == ip) 7401ef8019bSDavid S. Miller return i; 7411ef8019bSDavid S. Miller else if (targets[i] == 0) 7421ef8019bSDavid S. Miller break; 7431ef8019bSDavid S. Miller 7441ef8019bSDavid S. Miller return -1; 7451ef8019bSDavid S. Miller } 7461ef8019bSDavid S. Miller 7471ef8019bSDavid S. Miller /* exported from bond_main.c */ 748c7d03a00SAlexey Dobriyan extern unsigned int bond_net_id; 7491ef8019bSDavid S. Miller extern const struct bond_parm_tbl bond_lacp_tbl[]; 7501ef8019bSDavid S. Miller extern const struct bond_parm_tbl xmit_hashtype_tbl[]; 7511ef8019bSDavid S. Miller extern const struct bond_parm_tbl arp_validate_tbl[]; 7521ef8019bSDavid S. Miller extern const struct bond_parm_tbl arp_all_targets_tbl[]; 7531ef8019bSDavid S. Miller extern const struct bond_parm_tbl fail_over_mac_tbl[]; 7541ef8019bSDavid S. Miller extern const struct bond_parm_tbl pri_reselect_tbl[]; 7551ef8019bSDavid S. Miller extern struct bond_parm_tbl ad_select_tbl[]; 7561ef8019bSDavid S. Miller 7571ef8019bSDavid S. Miller /* exported from bond_netlink.c */ 7581ef8019bSDavid S. Miller extern struct rtnl_link_ops bond_link_ops; 7591ef8019bSDavid S. Miller 760b9ad3e9fSJamie Iles /* exported from bond_sysfs_slave.c */ 761b9ad3e9fSJamie Iles extern const struct sysfs_ops slave_sysfs_ops; 762b9ad3e9fSJamie Iles 763ae46f184SEric Dumazet static inline netdev_tx_t bond_tx_drop(struct net_device *dev, struct sk_buff *skb) 7641ef8019bSDavid S. Miller { 7651ef8019bSDavid S. Miller atomic_long_inc(&dev->tx_dropped); 7661ef8019bSDavid S. Miller dev_kfree_skb_any(skb); 767ae46f184SEric Dumazet return NET_XMIT_DROP; 7681ef8019bSDavid S. Miller } 7691ef8019bSDavid S. Miller 7701ef8019bSDavid S. Miller #endif /* _NET_BONDING_H */ 771