1 /* -*- c-basic-offset: 8 -*-
3 * fw-topology.h -- Incremental bus scan, based on bus topology
5 * Copyright (C) 2003-2006 Kristian Hoegsberg <krh@bitplanet.net>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software Foundation,
19 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 #ifndef __fw_topology_h
23 #define __fw_topology_h
28 FW_TOPOLOGY_MIXED = 0x03,
32 FW_NODE_CREATED = 0x00,
33 FW_NODE_UPDATED = 0x01,
34 FW_NODE_DESTROYED = 0x02,
35 FW_NODE_LINK_ON = 0x03,
36 FW_NODE_LINK_OFF = 0x04,
41 unsigned speed : 3; /* S100, S200, ... S3200 */
49 unsigned initiated_reset : 1;
51 u8 phy_speed : 3; /* As in the self ID packet. */
52 u8 max_speed : 5; /* Minimum of all phy-speeds and port speeds on
53 * the path from the local node to this node. */
54 u8 max_depth : 4; /* Maximum depth to any leaf node */
55 u8 max_hops : 4; /* Max hops in this sub tree */
58 /* For serializing node topology into a list. */
59 struct list_head link;
61 /* Upper layer specific data. */
64 struct fw_port ports[0];
67 static inline struct fw_node *
68 fw_node(struct list_head *l)
70 return list_entry (l, struct fw_node, link);
73 static inline struct fw_node *
74 fw_node_get(struct fw_node *node)
76 atomic_inc(&node->ref_count);
82 fw_node_put(struct fw_node *node)
84 if (atomic_dec_and_test(&node->ref_count))
89 fw_destroy_nodes(struct fw_card *card);
92 fw_compute_block_crc(u32 *block);
95 #endif /* __fw_topology_h */