ACPI: ibm-acpi: kill trailing whitespace
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / net / bridge / br_private_stp.h
blobe29f01ac1adfa6f0c898e0d6d634f2d69b7fea52
1 /*
2 * Linux ethernet bridge
4 * Authors:
5 * Lennert Buytenhek <buytenh@gnu.org>
7 * $Id: br_private_stp.h,v 1.3 2001/02/05 06:03:47 davem Exp $
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
15 #ifndef _BR_PRIVATE_STP_H
16 #define _BR_PRIVATE_STP_H
18 #define BPDU_TYPE_CONFIG 0
19 #define BPDU_TYPE_TCN 0x80
21 struct br_config_bpdu
23 unsigned topology_change:1;
24 unsigned topology_change_ack:1;
25 bridge_id root;
26 int root_path_cost;
27 bridge_id bridge_id;
28 port_id port_id;
29 int message_age;
30 int max_age;
31 int hello_time;
32 int forward_delay;
35 /* called under bridge lock */
36 static inline int br_is_designated_port(const struct net_bridge_port *p)
38 return !memcmp(&p->designated_bridge, &p->br->bridge_id, 8) &&
39 (p->designated_port == p->port_id);
43 /* br_stp.c */
44 extern void br_become_root_bridge(struct net_bridge *br);
45 extern void br_config_bpdu_generation(struct net_bridge *);
46 extern void br_configuration_update(struct net_bridge *);
47 extern void br_port_state_selection(struct net_bridge *);
48 extern void br_received_config_bpdu(struct net_bridge_port *p, struct br_config_bpdu *bpdu);
49 extern void br_received_tcn_bpdu(struct net_bridge_port *p);
50 extern void br_transmit_config(struct net_bridge_port *p);
51 extern void br_transmit_tcn(struct net_bridge *br);
52 extern void br_topology_change_detection(struct net_bridge *br);
54 /* br_stp_bpdu.c */
55 extern void br_send_config_bpdu(struct net_bridge_port *, struct br_config_bpdu *);
56 extern void br_send_tcn_bpdu(struct net_bridge_port *);
58 #endif