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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328/* SPDX-License-Identifier: GPL-2.0-or-later *//* * include/linux/if_team.h - Network team device driver header * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com> */#ifndef _LINUX_IF_TEAM_H_#define _LINUX_IF_TEAM_H_
#include <linux/netpoll.h>#include <net/sch_generic.h>#include <linux/types.h>#include <uapi/linux/if_team.h>
struct team_pcpu_stats { u64_stats_t rx_packets; u64_stats_t rx_bytes; u64_stats_t rx_multicast; u64_stats_t tx_packets; u64_stats_t tx_bytes; struct u64_stats_sync syncp; u32 rx_dropped; u32 tx_dropped; u32 rx_nohandler;};
struct team;
struct team_port { struct net_device *dev; struct hlist_node tx_hlist; /* node in tx-enabled ports hash list */ struct list_head list; /* node in ordinary list */ struct team *team; int tx_index; /* index of tx enabled port. If disabled, -1 */ bool rx_enabled;
bool linkup; /* either state.linkup or user.linkup */
struct { bool linkup; u32 speed; u8 duplex; } state;
/* Values set by userspace */ struct { bool linkup; bool linkup_enabled; } user;
/* Custom gennetlink interface related flags */ bool changed; bool removed;
/* * A place for storing original values of the device before it * become a port. */ struct { unsigned char dev_addr[MAX_ADDR_LEN]; unsigned int mtu; } orig;
#ifdef CONFIG_NET_POLL_CONTROLLER struct netpoll *np;#endif
s32 priority; /* lower number ~ higher priority */ u16 queue_id; struct list_head qom_list; /* node in queue override mapping list */ struct rcu_head rcu; long mode_priv[];};
static inline struct team_port *team_port_get_rcu(const struct net_device *dev){ return rcu_dereference(dev->rx_handler_data);}
static inline bool team_port_rx_enabled(struct team_port *port){ return READ_ONCE(port->rx_enabled);}
static inline bool team_port_tx_enabled(struct team_port *port){ return READ_ONCE(port->tx_index) != -1;}
static inline bool team_port_enabled(struct team_port *port){ return team_port_rx_enabled(port) && team_port_tx_enabled(port);}
static inline bool team_port_txable(struct team_port *port){ return port->linkup && team_port_tx_enabled(port);}
static inline bool team_port_dev_txable(const struct net_device *port_dev){ struct team_port *port; bool txable;
rcu_read_lock(); port = team_port_get_rcu(port_dev); txable = port ? team_port_txable(port) : false; rcu_read_unlock();
return txable;}
#ifdef CONFIG_NET_POLL_CONTROLLERstatic inline void team_netpoll_send_skb(struct team_port *port, struct sk_buff *skb){ netpoll_send_skb(port->np, skb);}#elsestatic inline void team_netpoll_send_skb(struct team_port *port, struct sk_buff *skb){}#endif
struct team_mode_ops { int (*init)(struct team *team); void (*exit)(struct team *team); rx_handler_result_t (*receive)(struct team *team, struct team_port *port, struct sk_buff *skb); bool (*transmit)(struct team *team, struct sk_buff *skb); int (*port_enter)(struct team *team, struct team_port *port); void (*port_leave)(struct team *team, struct team_port *port); void (*port_change_dev_addr)(struct team *team, struct team_port *port); void (*port_tx_disabled)(struct team *team, struct team_port *port);};
extern int team_modeop_port_enter(struct team *team, struct team_port *port);extern void team_modeop_port_change_dev_addr(struct team *team, struct team_port *port);
enum team_option_type { TEAM_OPTION_TYPE_U32, TEAM_OPTION_TYPE_STRING, TEAM_OPTION_TYPE_BINARY, TEAM_OPTION_TYPE_BOOL, TEAM_OPTION_TYPE_S32,};
struct team_option_inst_info { u32 array_index; struct team_port *port; /* != NULL if per-port */};
struct team_gsetter_ctx { union { u32 u32_val; const char *str_val; struct { const void *ptr; u32 len; } bin_val; bool bool_val; s32 s32_val; } data; struct team_option_inst_info *info;};
struct team_option { struct list_head list; const char *name; bool per_port; unsigned int array_size; /* != 0 means the option is array */ enum team_option_type type; void (*init)(struct team *team, struct team_option_inst_info *info); void (*getter)(struct team *team, struct team_gsetter_ctx *ctx); int (*setter)(struct team *team, struct team_gsetter_ctx *ctx);};
extern void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info);extern void team_options_change_check(struct team *team);
struct team_mode { const char *kind; struct module *owner; size_t priv_size; size_t port_priv_size; const struct team_mode_ops *ops; enum netdev_lag_tx_type lag_tx_type;};
#define TEAM_PORT_HASHBITS 4#define TEAM_PORT_HASHENTRIES (1 << TEAM_PORT_HASHBITS)
#define TEAM_MODE_PRIV_LONGS 4#define TEAM_MODE_PRIV_SIZE (sizeof(long) * TEAM_MODE_PRIV_LONGS)
struct team { struct team_pcpu_stats __percpu *pcpu_stats;
const struct header_ops *header_ops_cache;
/* * List of tx-enabled ports and counts of rx and tx-enabled ports. */ int tx_en_port_count; int rx_en_port_count; struct hlist_head tx_en_port_hlist[TEAM_PORT_HASHENTRIES];
struct list_head port_list; /* list of all ports */
struct list_head option_list; struct list_head option_inst_list; /* list of option instances */
const struct team_mode *mode; struct team_mode_ops ops; bool user_carrier_enabled; bool queue_override_enabled; struct list_head *qom_lists; /* array of queue override mapping lists */ bool port_mtu_change_allowed; bool notifier_ctx; struct { unsigned int count; unsigned int interval; /* in ms */ atomic_t count_pending; struct delayed_work dw; } notify_peers; struct { unsigned int count; unsigned int interval; /* in ms */ atomic_t count_pending; struct delayed_work dw; } mcast_rejoin; long mode_priv[TEAM_MODE_PRIV_LONGS];};
static inline int team_dev_queue_xmit(struct team *team, struct team_port *port, struct sk_buff *skb){ BUILD_BUG_ON(sizeof(skb->queue_mapping) != sizeof(qdisc_skb_cb(skb)->slave_dev_queue_mapping)); skb_set_queue_mapping(skb, qdisc_skb_cb(skb)->slave_dev_queue_mapping);
skb->dev = port->dev; if (unlikely(netpoll_tx_running(netdev_from_priv(team)))) { team_netpoll_send_skb(port, skb); return 0; } return dev_queue_xmit(skb);}
static inline struct hlist_head *team_tx_port_index_hash(struct team *team, int tx_port_index){ unsigned int list_entry = tx_port_index & (TEAM_PORT_HASHENTRIES - 1);
return &team->tx_en_port_hlist[list_entry];}
static inline struct team_port *team_get_port_by_tx_index(struct team *team, int tx_port_index){ struct hlist_head *head = team_tx_port_index_hash(team, tx_port_index); struct team_port *port;
hlist_for_each_entry(port, head, tx_hlist) if (port->tx_index == tx_port_index) return port; return NULL;}
static inline int team_num_to_port_index(struct team *team, unsigned int num){ int tx_en_port_count = READ_ONCE(team->tx_en_port_count);
if (unlikely(!tx_en_port_count)) return 0; return num % tx_en_port_count;}
static inline struct team_port *team_get_port_by_tx_index_rcu(struct team *team, int tx_port_index){ struct hlist_head *head = team_tx_port_index_hash(team, tx_port_index); struct team_port *port;
hlist_for_each_entry_rcu(port, head, tx_hlist) if (READ_ONCE(port->tx_index) == tx_port_index) return port; return NULL;}
static inline struct team_port *team_get_first_port_txable_rcu(struct team *team, struct team_port *port){ struct team_port *cur;
if (likely(team_port_txable(port))) return port; cur = port; list_for_each_entry_continue_rcu(cur, &team->port_list, list) if (team_port_txable(cur)) return cur; list_for_each_entry_rcu(cur, &team->port_list, list) { if (cur == port) break; if (team_port_txable(cur)) return cur; } return NULL;}
extern int team_options_register(struct team *team, const struct team_option *option, size_t option_count);extern void team_options_unregister(struct team *team, const struct team_option *option, size_t option_count);extern int team_mode_register(const struct team_mode *mode);extern void team_mode_unregister(const struct team_mode *mode);
#define TEAM_DEFAULT_NUM_TX_QUEUES 16#define TEAM_DEFAULT_NUM_RX_QUEUES 16
#define MODULE_ALIAS_TEAM_MODE(kind) MODULE_ALIAS("team-mode-" kind)
#endif /* _LINUX_IF_TEAM_H_ */