diff options
Diffstat (limited to 'net/tipc/link.h')
| -rw-r--r-- | net/tipc/link.h | 63 |
1 files changed, 38 insertions, 25 deletions
diff --git a/net/tipc/link.h b/net/tipc/link.h index e56cb532913e..73c18c140e1d 100644 --- a/net/tipc/link.h +++ b/net/tipc/link.h @@ -45,6 +45,12 @@ #define PUSH_FINISHED 2 /* + * Out-of-range value for link sequence numbers + */ + +#define INVALID_LINK_SEQ 0x10000 + +/* * Link states */ @@ -61,7 +67,7 @@ #define MAX_PKT_DEFAULT 1500 /** - * struct link - TIPC link data structure + * struct tipc_link - TIPC link data structure * @addr: network address of link's peer node * @name: link name character string * @media_addr: media address to use when sending messages over link @@ -109,7 +115,7 @@ * @stats: collects statistics regarding link activity */ -struct link { +struct tipc_link { u32 addr; char name[TIPC_MAX_LINK_NAME]; struct tipc_media_addr media_addr; @@ -207,24 +213,24 @@ struct link { struct tipc_port; -struct link *tipc_link_create(struct tipc_node *n_ptr, +struct tipc_link *tipc_link_create(struct tipc_node *n_ptr, struct tipc_bearer *b_ptr, const struct tipc_media_addr *media_addr); -void tipc_link_delete(struct link *l_ptr); -void tipc_link_changeover(struct link *l_ptr); -void tipc_link_send_duplicate(struct link *l_ptr, struct link *dest); -void tipc_link_reset_fragments(struct link *l_ptr); -int tipc_link_is_up(struct link *l_ptr); -int tipc_link_is_active(struct link *l_ptr); -u32 tipc_link_push_packet(struct link *l_ptr); -void tipc_link_stop(struct link *l_ptr); +void tipc_link_delete(struct tipc_link *l_ptr); +void tipc_link_changeover(struct tipc_link *l_ptr); +void tipc_link_send_duplicate(struct tipc_link *l_ptr, struct tipc_link *dest); +void tipc_link_reset_fragments(struct tipc_link *l_ptr); +int tipc_link_is_up(struct tipc_link *l_ptr); +int tipc_link_is_active(struct tipc_link *l_ptr); +u32 tipc_link_push_packet(struct tipc_link *l_ptr); +void tipc_link_stop(struct tipc_link *l_ptr); struct sk_buff *tipc_link_cmd_config(const void *req_tlv_area, int req_tlv_space, u16 cmd); struct sk_buff *tipc_link_cmd_show_stats(const void *req_tlv_area, int req_tlv_space); struct sk_buff *tipc_link_cmd_reset_stats(const void *req_tlv_area, int req_tlv_space); -void tipc_link_reset(struct link *l_ptr); +void tipc_link_reset(struct tipc_link *l_ptr); int tipc_link_send(struct sk_buff *buf, u32 dest, u32 selector); void tipc_link_send_names(struct list_head *message_list, u32 dest); -int tipc_link_send_buf(struct link *l_ptr, struct sk_buff *buf); +int tipc_link_send_buf(struct tipc_link *l_ptr, struct sk_buff *buf); u32 tipc_link_get_max_pkt(u32 dest, u32 selector); int tipc_link_send_sections_fast(struct tipc_port *sender, struct iovec const *msg_sect, @@ -235,19 +241,26 @@ void tipc_link_recv_bundle(struct sk_buff *buf); int tipc_link_recv_fragment(struct sk_buff **pending, struct sk_buff **fb, struct tipc_msg **msg); -void tipc_link_send_proto_msg(struct link *l_ptr, u32 msg_typ, int prob, u32 gap, - u32 tolerance, u32 priority, u32 acked_mtu); -void tipc_link_push_queue(struct link *l_ptr); +void tipc_link_send_proto_msg(struct tipc_link *l_ptr, u32 msg_typ, int prob, + u32 gap, u32 tolerance, u32 priority, + u32 acked_mtu); +void tipc_link_push_queue(struct tipc_link *l_ptr); u32 tipc_link_defer_pkt(struct sk_buff **head, struct sk_buff **tail, struct sk_buff *buf); -void tipc_link_wakeup_ports(struct link *l_ptr, int all); -void tipc_link_set_queue_limits(struct link *l_ptr, u32 window); -void tipc_link_retransmit(struct link *l_ptr, struct sk_buff *start, u32 retransmits); +void tipc_link_wakeup_ports(struct tipc_link *l_ptr, int all); +void tipc_link_set_queue_limits(struct tipc_link *l_ptr, u32 window); +void tipc_link_retransmit(struct tipc_link *l_ptr, + struct sk_buff *start, u32 retransmits); /* * Link sequence number manipulation routines (uses modulo 2**16 arithmetic) */ +static inline u32 buf_seqno(struct sk_buff *buf) +{ + return msg_seqno(buf_msg(buf)); +} + static inline u32 mod(u32 x) { return x & 0xffffu; @@ -282,32 +295,32 @@ static inline u32 lesser(u32 left, u32 right) * Link status checking routines */ -static inline int link_working_working(struct link *l_ptr) +static inline int link_working_working(struct tipc_link *l_ptr) { return l_ptr->state == WORKING_WORKING; } -static inline int link_working_unknown(struct link *l_ptr) +static inline int link_working_unknown(struct tipc_link *l_ptr) { return l_ptr->state == WORKING_UNKNOWN; } -static inline int link_reset_unknown(struct link *l_ptr) +static inline int link_reset_unknown(struct tipc_link *l_ptr) { return l_ptr->state == RESET_UNKNOWN; } -static inline int link_reset_reset(struct link *l_ptr) +static inline int link_reset_reset(struct tipc_link *l_ptr) { return l_ptr->state == RESET_RESET; } -static inline int link_blocked(struct link *l_ptr) +static inline int link_blocked(struct tipc_link *l_ptr) { return l_ptr->exp_msg_count || l_ptr->blocked; } -static inline int link_congested(struct link *l_ptr) +static inline int link_congested(struct tipc_link *l_ptr) { return l_ptr->out_queue_size >= l_ptr->queue_limit[0]; } |