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-rw-r--r--net/tipc/port.h73
1 files changed, 31 insertions, 42 deletions
diff --git a/net/tipc/port.h b/net/tipc/port.h
index 8e84b989949c..87b9424ae0ec 100644
--- a/net/tipc/port.h
+++ b/net/tipc/port.h
@@ -2,7 +2,7 @@
2 * net/tipc/port.h: Include file for TIPC port code 2 * net/tipc/port.h: Include file for TIPC port code
3 * 3 *
4 * Copyright (c) 1994-2007, Ericsson AB 4 * Copyright (c) 1994-2007, Ericsson AB
5 * Copyright (c) 2004-2007, Wind River Systems 5 * Copyright (c) 2004-2007, 2010-2011, Wind River Systems
6 * All rights reserved. 6 * All rights reserved.
7 * 7 *
8 * Redistribution and use in source and binary forms, with or without 8 * Redistribution and use in source and binary forms, with or without
@@ -95,7 +95,7 @@ struct user_port {
95}; 95};
96 96
97/** 97/**
98 * struct tipc_port - TIPC port info available to socket API 98 * struct tipc_port - TIPC port structure
99 * @usr_handle: pointer to additional user-defined information about port 99 * @usr_handle: pointer to additional user-defined information about port
100 * @lock: pointer to spinlock for controlling access to port 100 * @lock: pointer to spinlock for controlling access to port
101 * @connected: non-zero if port is currently connected to a peer port 101 * @connected: non-zero if port is currently connected to a peer port
@@ -107,43 +107,33 @@ struct user_port {
107 * @max_pkt: maximum packet size "hint" used when building messages sent by port 107 * @max_pkt: maximum packet size "hint" used when building messages sent by port
108 * @ref: unique reference to port in TIPC object registry 108 * @ref: unique reference to port in TIPC object registry
109 * @phdr: preformatted message header used when sending messages 109 * @phdr: preformatted message header used when sending messages
110 */
111struct tipc_port {
112 void *usr_handle;
113 spinlock_t *lock;
114 int connected;
115 u32 conn_type;
116 u32 conn_instance;
117 u32 conn_unacked;
118 int published;
119 u32 congested;
120 u32 max_pkt;
121 u32 ref;
122 struct tipc_msg phdr;
123};
124
125/**
126 * struct port - TIPC port structure
127 * @publ: TIPC port info available to privileged users
128 * @port_list: adjacent ports in TIPC's global list of ports 110 * @port_list: adjacent ports in TIPC's global list of ports
129 * @dispatcher: ptr to routine which handles received messages 111 * @dispatcher: ptr to routine which handles received messages
130 * @wakeup: ptr to routine to call when port is no longer congested 112 * @wakeup: ptr to routine to call when port is no longer congested
131 * @user_port: ptr to user port associated with port (if any) 113 * @user_port: ptr to user port associated with port (if any)
132 * @wait_list: adjacent ports in list of ports waiting on link congestion 114 * @wait_list: adjacent ports in list of ports waiting on link congestion
133 * @waiting_pkts: 115 * @waiting_pkts:
134 * @sent: 116 * @sent: # of non-empty messages sent by port
135 * @acked: 117 * @acked: # of non-empty message acknowledgements from connected port's peer
136 * @publications: list of publications for port 118 * @publications: list of publications for port
137 * @pub_count: total # of publications port has made during its lifetime 119 * @pub_count: total # of publications port has made during its lifetime
138 * @probing_state: 120 * @probing_state:
139 * @probing_interval: 121 * @probing_interval:
140 * @last_in_seqno:
141 * @timer_ref: 122 * @timer_ref:
142 * @subscription: "node down" subscription used to terminate failed connections 123 * @subscription: "node down" subscription used to terminate failed connections
143 */ 124 */
144 125struct tipc_port {
145struct port { 126 void *usr_handle;
146 struct tipc_port publ; 127 spinlock_t *lock;
128 int connected;
129 u32 conn_type;
130 u32 conn_instance;
131 u32 conn_unacked;
132 int published;
133 u32 congested;
134 u32 max_pkt;
135 u32 ref;
136 struct tipc_msg phdr;
147 struct list_head port_list; 137 struct list_head port_list;
148 u32 (*dispatcher)(struct tipc_port *, struct sk_buff *); 138 u32 (*dispatcher)(struct tipc_port *, struct sk_buff *);
149 void (*wakeup)(struct tipc_port *); 139 void (*wakeup)(struct tipc_port *);
@@ -156,7 +146,6 @@ struct port {
156 u32 pub_count; 146 u32 pub_count;
157 u32 probing_state; 147 u32 probing_state;
158 u32 probing_interval; 148 u32 probing_interval;
159 u32 last_in_seqno;
160 struct timer_list timer; 149 struct timer_list timer;
161 struct tipc_node_subscr subscription; 150 struct tipc_node_subscr subscription;
162}; 151};
@@ -230,7 +219,7 @@ int tipc_send_buf2port(u32 portref, struct tipc_portid const *dest,
230int tipc_multicast(u32 portref, struct tipc_name_seq const *seq, 219int tipc_multicast(u32 portref, struct tipc_name_seq const *seq,
231 unsigned int section_count, struct iovec const *msg); 220 unsigned int section_count, struct iovec const *msg);
232 221
233int tipc_port_reject_sections(struct port *p_ptr, struct tipc_msg *hdr, 222int tipc_port_reject_sections(struct tipc_port *p_ptr, struct tipc_msg *hdr,
234 struct iovec const *msg_sect, u32 num_sect, 223 struct iovec const *msg_sect, u32 num_sect,
235 int err); 224 int err);
236struct sk_buff *tipc_port_get_ports(void); 225struct sk_buff *tipc_port_get_ports(void);
@@ -242,9 +231,9 @@ void tipc_port_reinit(void);
242 * tipc_port_lock - lock port instance referred to and return its pointer 231 * tipc_port_lock - lock port instance referred to and return its pointer
243 */ 232 */
244 233
245static inline struct port *tipc_port_lock(u32 ref) 234static inline struct tipc_port *tipc_port_lock(u32 ref)
246{ 235{
247 return (struct port *)tipc_ref_lock(ref); 236 return (struct tipc_port *)tipc_ref_lock(ref);
248} 237}
249 238
250/** 239/**
@@ -253,27 +242,27 @@ static inline struct port *tipc_port_lock(u32 ref)
253 * Can use pointer instead of tipc_ref_unlock() since port is already locked. 242 * Can use pointer instead of tipc_ref_unlock() since port is already locked.
254 */ 243 */
255 244
256static inline void tipc_port_unlock(struct port *p_ptr) 245static inline void tipc_port_unlock(struct tipc_port *p_ptr)
257{ 246{
258 spin_unlock_bh(p_ptr->publ.lock); 247 spin_unlock_bh(p_ptr->lock);
259} 248}
260 249
261static inline struct port *tipc_port_deref(u32 ref) 250static inline struct tipc_port *tipc_port_deref(u32 ref)
262{ 251{
263 return (struct port *)tipc_ref_deref(ref); 252 return (struct tipc_port *)tipc_ref_deref(ref);
264} 253}
265 254
266static inline u32 tipc_peer_port(struct port *p_ptr) 255static inline u32 tipc_peer_port(struct tipc_port *p_ptr)
267{ 256{
268 return msg_destport(&p_ptr->publ.phdr); 257 return msg_destport(&p_ptr->phdr);
269} 258}
270 259
271static inline u32 tipc_peer_node(struct port *p_ptr) 260static inline u32 tipc_peer_node(struct tipc_port *p_ptr)
272{ 261{
273 return msg_destnode(&p_ptr->publ.phdr); 262 return msg_destnode(&p_ptr->phdr);
274} 263}
275 264
276static inline int tipc_port_congested(struct port *p_ptr) 265static inline int tipc_port_congested(struct tipc_port *p_ptr)
277{ 266{
278 return (p_ptr->sent - p_ptr->acked) >= (TIPC_FLOW_CONTROL_WIN * 2); 267 return (p_ptr->sent - p_ptr->acked) >= (TIPC_FLOW_CONTROL_WIN * 2);
279} 268}
@@ -284,7 +273,7 @@ static inline int tipc_port_congested(struct port *p_ptr)
284 273
285static inline int tipc_port_recv_msg(struct sk_buff *buf) 274static inline int tipc_port_recv_msg(struct sk_buff *buf)
286{ 275{
287 struct port *p_ptr; 276 struct tipc_port *p_ptr;
288 struct tipc_msg *msg = buf_msg(buf); 277 struct tipc_msg *msg = buf_msg(buf);
289 u32 destport = msg_destport(msg); 278 u32 destport = msg_destport(msg);
290 u32 dsz = msg_data_sz(msg); 279 u32 dsz = msg_data_sz(msg);
@@ -299,7 +288,7 @@ static inline int tipc_port_recv_msg(struct sk_buff *buf)
299 /* validate destination & pass to port, otherwise reject message */ 288 /* validate destination & pass to port, otherwise reject message */
300 p_ptr = tipc_port_lock(destport); 289 p_ptr = tipc_port_lock(destport);
301 if (likely(p_ptr)) { 290 if (likely(p_ptr)) {
302 if (likely(p_ptr->publ.connected)) { 291 if (likely(p_ptr->connected)) {
303 if ((unlikely(msg_origport(msg) != tipc_peer_port(p_ptr))) || 292 if ((unlikely(msg_origport(msg) != tipc_peer_port(p_ptr))) ||
304 (unlikely(msg_orignode(msg) != tipc_peer_node(p_ptr))) || 293 (unlikely(msg_orignode(msg) != tipc_peer_node(p_ptr))) ||
305 (unlikely(!msg_connected(msg)))) { 294 (unlikely(!msg_connected(msg)))) {
@@ -308,7 +297,7 @@ static inline int tipc_port_recv_msg(struct sk_buff *buf)
308 goto reject; 297 goto reject;
309 } 298 }
310 } 299 }
311 err = p_ptr->dispatcher(&p_ptr->publ, buf); 300 err = p_ptr->dispatcher(p_ptr, buf);
312 tipc_port_unlock(p_ptr); 301 tipc_port_unlock(p_ptr);
313 if (likely(!err)) 302 if (likely(!err))
314 return dsz; 303 return dsz;