1/*
2 * Bond several ethernet interfaces into a Cisco, running 'Etherchannel'.
3 *
4 *
5 * Portions are (c) Copyright 1995 Simon "Guru Aleph-Null" Janes
6 * NCM: Network and Communications Management, Inc.
7 *
8 * BUT, I'm the one who modified it for ethernet, so:
9 * (c) Copyright 1999, Thomas Davis, tadavis@lbl.gov
10 *
11 *	This software may be used and distributed according to the terms
12 *	of the GNU Public License, incorporated herein by reference.
13 *
14 * 2003/03/18 - Amir Noam <amir.noam at intel dot com>
15 *	- Added support for getting slave's speed and duplex via ethtool.
16 *	  Needed for 802.3ad and other future modes.
17 *
18 * 2003/03/18 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and
19 *		Shmulik Hen <shmulik.hen at intel dot com>
20 *	- Enable support of modes that need to use the unique mac address of
21 *	  each slave.
22 *
23 * 2003/03/18 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and
24 *		Amir Noam <amir.noam at intel dot com>
25 *	- Moved driver's private data types to bonding.h
26 *
27 * 2003/03/18 - Amir Noam <amir.noam at intel dot com>,
28 *		Tsippy Mendelson <tsippy.mendelson at intel dot com> and
29 *		Shmulik Hen <shmulik.hen at intel dot com>
30 *	- Added support for IEEE 802.3ad Dynamic link aggregation mode.
31 *
32 * 2003/05/01 - Amir Noam <amir.noam at intel dot com>
33 *	- Added ABI version control to restore compatibility between
34 *	  new/old ifenslave and new/old bonding.
35 *
36 * 2003/12/01 - Shmulik Hen <shmulik.hen at intel dot com>
37 *	- Code cleanup and style changes
38 *
39 * 2005/05/05 - Jason Gabler <jygabler at lbl dot gov>
40 *      - added definitions for various XOR hashing policies
41 */
42
43#ifndef _LINUX_IF_BONDING_H
44#define _LINUX_IF_BONDING_H
45
46#include <linux/if.h>
47#include <linux/types.h>
48#include <linux/if_ether.h>
49
50/* userland - kernel ABI version (2003/05/08) */
51#define BOND_ABI_VERSION 2
52
53/*
54 * We can remove these ioctl definitions in 2.5.  People should use the
55 * SIOC*** versions of them instead
56 */
57#define BOND_ENSLAVE_OLD		(SIOCDEVPRIVATE)
58#define BOND_RELEASE_OLD		(SIOCDEVPRIVATE + 1)
59#define BOND_SETHWADDR_OLD		(SIOCDEVPRIVATE + 2)
60#define BOND_SLAVE_INFO_QUERY_OLD	(SIOCDEVPRIVATE + 11)
61#define BOND_INFO_QUERY_OLD		(SIOCDEVPRIVATE + 12)
62#define BOND_CHANGE_ACTIVE_OLD		(SIOCDEVPRIVATE + 13)
63
64#define BOND_CHECK_MII_STATUS	(SIOCGMIIPHY)
65
66#define BOND_MODE_ROUNDROBIN	0
67#define BOND_MODE_ACTIVEBACKUP	1
68#define BOND_MODE_XOR		2
69#define BOND_MODE_BROADCAST	3
70#define BOND_MODE_8023AD        4
71#define BOND_MODE_TLB           5
72#define BOND_MODE_ALB		6 /* TLB + RLB (receive load balancing) */
73
74/* each slave's link has 4 states */
75#define BOND_LINK_UP    0           /* link is up and running */
76#define BOND_LINK_FAIL  1           /* link has just gone down */
77#define BOND_LINK_DOWN  2           /* link has been down for too long time */
78#define BOND_LINK_BACK  3           /* link is going back */
79
80/* each slave has several states */
81#define BOND_STATE_ACTIVE       0   /* link is active */
82#define BOND_STATE_BACKUP       1   /* link is backup */
83
84#define BOND_DEFAULT_MAX_BONDS  1   /* Default maximum number of devices to support */
85
86#define BOND_DEFAULT_TX_QUEUES 16   /* Default number of tx queues per device */
87
88#define BOND_DEFAULT_RESEND_IGMP	1 /* Default number of IGMP membership reports */
89
90/* hashing types */
91#define BOND_XMIT_POLICY_LAYER2		0 /* layer 2 (MAC only), default */
92#define BOND_XMIT_POLICY_LAYER34	1 /* layer 3+4 (IP ^ (TCP || UDP)) */
93#define BOND_XMIT_POLICY_LAYER23	2 /* layer 2+3 (IP ^ MAC) */
94#define BOND_XMIT_POLICY_ENCAP23	3 /* encapsulated layer 2+3 */
95#define BOND_XMIT_POLICY_ENCAP34	4 /* encapsulated layer 3+4 */
96
97typedef struct ifbond {
98	__s32 bond_mode;
99	__s32 num_slaves;
100	__s32 miimon;
101} ifbond;
102
103typedef struct ifslave {
104	__s32 slave_id; /* Used as an IN param to the BOND_SLAVE_INFO_QUERY ioctl */
105	char slave_name[IFNAMSIZ];
106	__s8 link;
107	__s8 state;
108	__u32  link_failure_count;
109} ifslave;
110
111struct ad_info {
112	__u16 aggregator_id;
113	__u16 ports;
114	__u16 actor_key;
115	__u16 partner_key;
116	__u8 partner_system[ETH_ALEN];
117};
118
119#endif /* _LINUX_IF_BONDING_H */
120
121/*
122 * Local variables:
123 *  version-control: t
124 *  kept-new-versions: 5
125 *  c-indent-level: 8
126 *  c-basic-offset: 8
127 *  tab-width: 8
128 * End:
129 */
130
131