linux/include/linux/if_bonding.h
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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
  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
 129
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