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
 95typedef struct ifbond {
 96	__s32 bond_mode;
 97	__s32 num_slaves;
 98	__s32 miimon;
 99} ifbond;
100
101typedef struct ifslave {
102	__s32 slave_id; /* Used as an IN param to the BOND_SLAVE_INFO_QUERY ioctl */
103	char slave_name[IFNAMSIZ];
104	__s8 link;
105	__s8 state;
106	__u32  link_failure_count;
107} ifslave;
108
109struct ad_info {
110	__u16 aggregator_id;
111	__u16 ports;
112	__u16 actor_key;
113	__u16 partner_key;
114	__u8 partner_system[ETH_ALEN];
115};
116
117#endif /* _LINUX_IF_BONDING_H */
118
119/*
120 * Local variables:
121 *  version-control: t
122 *  kept-new-versions: 5
123 *  c-indent-level: 8
124 *  c-basic-offset: 8
125 *  tab-width: 8
126 * End:
127 */
128