diff options
Diffstat (limited to 'net/tipc/bearer.h')
| -rw-r--r-- | net/tipc/bearer.h | 63 |
1 files changed, 46 insertions, 17 deletions
diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h index 635c9086e19a..41eac1ee0c09 100644 --- a/net/tipc/bearer.h +++ b/net/tipc/bearer.h @@ -93,7 +93,10 @@ struct tipc_bearer; * @raw2addr: convert from raw addr format to media addr format * @priority: default link (and bearer) priority * @tolerance: default time (in ms) before declaring link failure - * @window: default window (in packets) before declaring link congestion + * @min_win: minimum window (in packets) before declaring link congestion + * @max_win: maximum window (in packets) before declaring link congestion + * @mtu: max packet size bearer can support for media type not dependent on + * underlying device MTU * @type_id: TIPC media identifier * @hwaddr_len: TIPC media address len * @name: media name @@ -114,10 +117,12 @@ struct tipc_media { char *msg); int (*raw2addr)(struct tipc_bearer *b, struct tipc_media_addr *addr, - char *raw); + const char *raw); u32 priority; u32 tolerance; - u32 window; + u32 min_win; + u32 max_win; + u32 mtu; u32 type_id; u32 hwaddr_len; char name[TIPC_MAX_MEDIA_NAME]; @@ -131,35 +136,44 @@ struct tipc_media { * @name: bearer name (format = media:interface) * @media: ptr to media structure associated with bearer * @bcast_addr: media address used in broadcasting + * @pt: packet type for bearer * @rcu: rcu struct for tipc_bearer * @priority: default link priority for bearer - * @window: default window size for bearer + * @min_win: minimum window (in packets) before declaring link congestion + * @max_win: maximum window (in packets) before declaring link congestion * @tolerance: default link tolerance for bearer * @domain: network domain to which links can be established * @identity: array index of this bearer within TIPC bearer array - * @link_req: ptr to (optional) structure making periodic link setup requests + * @disc: ptr to link setup request * @net_plane: network plane ('A' through 'H') currently associated with bearer + * @encap_hlen: encap headers length + * @up: bearer up flag (bit 0) + * @refcnt: tipc_bearer reference counter * * Note: media-specific code is responsible for initialization of the fields * indicated below when a bearer is enabled; TIPC's generic bearer code takes * care of initializing all other fields. */ struct tipc_bearer { - void __rcu *media_ptr; /* initalized by media */ - u32 mtu; /* initalized by media */ - struct tipc_media_addr addr; /* initalized by media */ + void __rcu *media_ptr; /* initialized by media */ + u32 mtu; /* initialized by media */ + struct tipc_media_addr addr; /* initialized by media */ char name[TIPC_MAX_BEARER_NAME]; struct tipc_media *media; struct tipc_media_addr bcast_addr; + struct packet_type pt; struct rcu_head rcu; u32 priority; - u32 window; + u32 min_win; + u32 max_win; u32 tolerance; u32 domain; u32 identity; - struct tipc_link_req *link_req; + struct tipc_discoverer *disc; char net_plane; + u16 encap_hlen; unsigned long up; + refcount_t refcnt; }; struct tipc_bearer_names { @@ -186,21 +200,25 @@ extern struct tipc_media udp_media_info; #endif int tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info); +int __tipc_nl_bearer_disable(struct sk_buff *skb, struct genl_info *info); int tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info); +int __tipc_nl_bearer_enable(struct sk_buff *skb, struct genl_info *info); int tipc_nl_bearer_dump(struct sk_buff *skb, struct netlink_callback *cb); int tipc_nl_bearer_get(struct sk_buff *skb, struct genl_info *info); int tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info); +int __tipc_nl_bearer_set(struct sk_buff *skb, struct genl_info *info); int tipc_nl_bearer_add(struct sk_buff *skb, struct genl_info *info); int tipc_nl_media_dump(struct sk_buff *skb, struct netlink_callback *cb); int tipc_nl_media_get(struct sk_buff *skb, struct genl_info *info); int tipc_nl_media_set(struct sk_buff *skb, struct genl_info *info); +int __tipc_nl_media_set(struct sk_buff *skb, struct genl_info *info); -int tipc_media_set_priority(const char *name, u32 new_value); -int tipc_media_set_window(const char *name, u32 new_value); -void tipc_media_addr_printf(char *buf, int len, struct tipc_media_addr *a); +int tipc_media_addr_printf(char *buf, int len, struct tipc_media_addr *a); int tipc_enable_l2_media(struct net *net, struct tipc_bearer *b, struct nlattr *attrs[]); +bool tipc_bearer_hold(struct tipc_bearer *b); +void tipc_bearer_put(struct tipc_bearer *b); void tipc_disable_l2_media(struct tipc_bearer *b); int tipc_l2_send_msg(struct net *net, struct sk_buff *buf, struct tipc_bearer *b, struct tipc_media_addr *dest); @@ -210,25 +228,36 @@ void tipc_bearer_remove_dest(struct net *net, u32 bearer_id, u32 dest); struct tipc_bearer *tipc_bearer_find(struct net *net, const char *name); int tipc_bearer_get_name(struct net *net, char *name, u32 bearer_id); struct tipc_media *tipc_media_find(const char *name); -void tipc_bearer_reset_all(struct net *net); int tipc_bearer_setup(void); void tipc_bearer_cleanup(void); void tipc_bearer_stop(struct net *net); int tipc_bearer_mtu(struct net *net, u32 bearer_id); +int tipc_bearer_min_mtu(struct net *net, u32 bearer_id); bool tipc_bearer_bcast_support(struct net *net, u32 bearer_id); void tipc_bearer_xmit_skb(struct net *net, u32 bearer_id, struct sk_buff *skb, struct tipc_media_addr *dest); void tipc_bearer_xmit(struct net *net, u32 bearer_id, struct sk_buff_head *xmitq, - struct tipc_media_addr *dst); + struct tipc_media_addr *dst, + struct tipc_node *__dnode); void tipc_bearer_bc_xmit(struct net *net, u32 bearer_id, struct sk_buff_head *xmitq); +void tipc_clone_to_loopback(struct net *net, struct sk_buff_head *pkts); +int tipc_attach_loopback(struct net *net); +void tipc_detach_loopback(struct net *net); + +static inline void tipc_loopback_trace(struct net *net, + struct sk_buff_head *pkts) +{ + if (unlikely(dev_nit_active(net->loopback_dev))) + tipc_clone_to_loopback(net, pkts); +} /* check if device MTU is too low for tipc headers */ -static inline bool tipc_mtu_bad(struct net_device *dev, unsigned int reserve) +static inline bool tipc_mtu_bad(struct net_device *dev) { - if (dev->mtu >= TIPC_MIN_BEARER_MTU + reserve) + if (dev->mtu >= TIPC_MIN_BEARER_MTU) return false; netdev_warn(dev, "MTU too low for tipc bearer\n"); return true; |