* net/tipc/port.h: Include file for TIPC port code
*
* Copyright (c) 1994-2007, Ericsson AB
- * Copyright (c) 2004-2007, Wind River Systems
+ * Copyright (c) 2004-2007, 2010-2011, Wind River Systems
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
};
/**
- * struct tipc_port - TIPC port info available to socket API
+ * struct tipc_port - TIPC port structure
* @usr_handle: pointer to additional user-defined information about port
* @lock: pointer to spinlock for controlling access to port
* @connected: non-zero if port is currently connected to a peer port
* @max_pkt: maximum packet size "hint" used when building messages sent by port
* @ref: unique reference to port in TIPC object registry
* @phdr: preformatted message header used when sending messages
- */
-struct tipc_port {
- void *usr_handle;
- spinlock_t *lock;
- int connected;
- u32 conn_type;
- u32 conn_instance;
- u32 conn_unacked;
- int published;
- u32 congested;
- u32 max_pkt;
- u32 ref;
- struct tipc_msg phdr;
-};
-
-/**
- * struct port - TIPC port structure
- * @publ: TIPC port info available to privileged users
* @port_list: adjacent ports in TIPC's global list of ports
* @dispatcher: ptr to routine which handles received messages
* @wakeup: ptr to routine to call when port is no longer congested
* @user_port: ptr to user port associated with port (if any)
* @wait_list: adjacent ports in list of ports waiting on link congestion
* @waiting_pkts:
- * @sent:
- * @acked:
+ * @sent: # of non-empty messages sent by port
+ * @acked: # of non-empty message acknowledgements from connected port's peer
* @publications: list of publications for port
* @pub_count: total # of publications port has made during its lifetime
* @probing_state:
* @probing_interval:
- * @last_in_seqno:
* @timer_ref:
* @subscription: "node down" subscription used to terminate failed connections
*/
-
-struct port {
- struct tipc_port publ;
+struct tipc_port {
+ void *usr_handle;
+ spinlock_t *lock;
+ int connected;
+ u32 conn_type;
+ u32 conn_instance;
+ u32 conn_unacked;
+ int published;
+ u32 congested;
+ u32 max_pkt;
+ u32 ref;
+ struct tipc_msg phdr;
struct list_head port_list;
u32 (*dispatcher)(struct tipc_port *, struct sk_buff *);
void (*wakeup)(struct tipc_port *);
u32 pub_count;
u32 probing_state;
u32 probing_interval;
- u32 last_in_seqno;
struct timer_list timer;
struct tipc_node_subscr subscription;
};
extern spinlock_t tipc_port_list_lock;
-struct port_list;
+struct tipc_port_list;
/*
* TIPC port manipulation routines
/*
* TIPC messaging routines
*/
-int tipc_send(u32 portref, unsigned int num_sect, struct iovec const *msg_sect);
+int tipc_send(u32 portref, unsigned int num_sect, struct iovec const *msg_sect,
+ unsigned int total_len);
int tipc_send2name(u32 portref, struct tipc_name const *name, u32 domain,
- unsigned int num_sect, struct iovec const *msg_sect);
+ unsigned int num_sect, struct iovec const *msg_sect,
+ unsigned int total_len);
int tipc_send2port(u32 portref, struct tipc_portid const *dest,
- unsigned int num_sect, struct iovec const *msg_sect);
+ unsigned int num_sect, struct iovec const *msg_sect,
+ unsigned int total_len);
int tipc_send_buf2port(u32 portref, struct tipc_portid const *dest,
struct sk_buff *buf, unsigned int dsz);
int tipc_multicast(u32 portref, struct tipc_name_seq const *seq,
- unsigned int section_count, struct iovec const *msg);
+ unsigned int section_count, struct iovec const *msg,
+ unsigned int total_len);
-int tipc_port_reject_sections(struct port *p_ptr, struct tipc_msg *hdr,
+int tipc_port_reject_sections(struct tipc_port *p_ptr, struct tipc_msg *hdr,
struct iovec const *msg_sect, u32 num_sect,
- int err);
+ unsigned int total_len, int err);
struct sk_buff *tipc_port_get_ports(void);
void tipc_port_recv_proto_msg(struct sk_buff *buf);
-void tipc_port_recv_mcast(struct sk_buff *buf, struct port_list *dp);
+void tipc_port_recv_mcast(struct sk_buff *buf, struct tipc_port_list *dp);
void tipc_port_reinit(void);
/**
* tipc_port_lock - lock port instance referred to and return its pointer
*/
-static inline struct port *tipc_port_lock(u32 ref)
+static inline struct tipc_port *tipc_port_lock(u32 ref)
{
- return (struct port *)tipc_ref_lock(ref);
+ return (struct tipc_port *)tipc_ref_lock(ref);
}
/**
* Can use pointer instead of tipc_ref_unlock() since port is already locked.
*/
-static inline void tipc_port_unlock(struct port *p_ptr)
+static inline void tipc_port_unlock(struct tipc_port *p_ptr)
{
- spin_unlock_bh(p_ptr->publ.lock);
+ spin_unlock_bh(p_ptr->lock);
}
-static inline struct port* tipc_port_deref(u32 ref)
+static inline struct tipc_port *tipc_port_deref(u32 ref)
{
- return (struct port *)tipc_ref_deref(ref);
+ return (struct tipc_port *)tipc_ref_deref(ref);
}
-static inline u32 tipc_peer_port(struct port *p_ptr)
+static inline u32 tipc_peer_port(struct tipc_port *p_ptr)
{
- return msg_destport(&p_ptr->publ.phdr);
+ return msg_destport(&p_ptr->phdr);
}
-static inline u32 tipc_peer_node(struct port *p_ptr)
+static inline u32 tipc_peer_node(struct tipc_port *p_ptr)
{
- return msg_destnode(&p_ptr->publ.phdr);
+ return msg_destnode(&p_ptr->phdr);
}
-static inline int tipc_port_congested(struct port *p_ptr)
+static inline int tipc_port_congested(struct tipc_port *p_ptr)
{
return (p_ptr->sent - p_ptr->acked) >= (TIPC_FLOW_CONTROL_WIN * 2);
}
static inline int tipc_port_recv_msg(struct sk_buff *buf)
{
- struct port *p_ptr;
+ struct tipc_port *p_ptr;
struct tipc_msg *msg = buf_msg(buf);
u32 destport = msg_destport(msg);
u32 dsz = msg_data_sz(msg);
/* validate destination & pass to port, otherwise reject message */
p_ptr = tipc_port_lock(destport);
if (likely(p_ptr)) {
- if (likely(p_ptr->publ.connected)) {
+ if (likely(p_ptr->connected)) {
if ((unlikely(msg_origport(msg) != tipc_peer_port(p_ptr))) ||
(unlikely(msg_orignode(msg) != tipc_peer_node(p_ptr))) ||
(unlikely(!msg_connected(msg)))) {
goto reject;
}
}
- err = p_ptr->dispatcher(&p_ptr->publ, buf);
+ err = p_ptr->dispatcher(p_ptr, buf);
tipc_port_unlock(p_ptr);
if (likely(!err))
return dsz;
err = TIPC_ERR_NO_PORT;
}
reject:
- dbg("port->rejecting, err = %x..\n",err);
return tipc_reject_msg(buf, err);
}