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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 
97 typedef struct ifbond {
98 	__s32 bond_mode;
99 	__s32 num_slaves;
100 	__s32 miimon;
101 } ifbond;
102 
103 typedef 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 
111 struct 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