ipmi: autoconvert trivial BKL users to private mutex
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / net / bridge / br_private_stp.h
blob8b650f7fbfa08823c7e75793cc0cdf23e4bd2036
1 /*
2 * Linux ethernet bridge
4 * Authors:
5 * Lennert Buytenhek <buytenh@gnu.org>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
13 #ifndef _BR_PRIVATE_STP_H
14 #define _BR_PRIVATE_STP_H
16 #define BPDU_TYPE_CONFIG 0
17 #define BPDU_TYPE_TCN 0x80
19 struct br_config_bpdu
21 unsigned topology_change:1;
22 unsigned topology_change_ack:1;
23 bridge_id root;
24 int root_path_cost;
25 bridge_id bridge_id;
26 port_id port_id;
27 int message_age;
28 int max_age;
29 int hello_time;
30 int forward_delay;
33 /* called under bridge lock */
34 static inline int br_is_designated_port(const struct net_bridge_port *p)
36 return !memcmp(&p->designated_bridge, &p->br->bridge_id, 8) &&
37 (p->designated_port == p->port_id);
41 /* br_stp.c */
42 extern void br_become_root_bridge(struct net_bridge *br);
43 extern void br_config_bpdu_generation(struct net_bridge *);
44 extern void br_configuration_update(struct net_bridge *);
45 extern void br_port_state_selection(struct net_bridge *);
46 extern void br_received_config_bpdu(struct net_bridge_port *p, struct br_config_bpdu *bpdu);
47 extern void br_received_tcn_bpdu(struct net_bridge_port *p);
48 extern void br_transmit_config(struct net_bridge_port *p);
49 extern void br_transmit_tcn(struct net_bridge *br);
50 extern void br_topology_change_detection(struct net_bridge *br);
52 /* br_stp_bpdu.c */
53 extern void br_send_config_bpdu(struct net_bridge_port *, struct br_config_bpdu *);
54 extern void br_send_tcn_bpdu(struct net_bridge_port *);
56 #endif