include/linux/if_bonding.h

   1 /* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
   2 /*
   3  * Bond several ethernet interfaces into a Cisco, running 'Etherchannel'.
   4  *
   5  *
   6  * Portions are (c) Copyright 1995 Simon "Guru Aleph-Null" Janes
   7  * NCM: Network and Communications Management, Inc.
   8  *
   9  * BUT, I'm the one who modified it for ethernet, so:
  10  * (c) Copyright 1999, Thomas Davis, tadavis@lbl.gov
  11  *
  12  *      This software may be used and distributed according to the terms
  13  *      of the GNU Public License, incorporated herein by reference.
  14  *
  15  * 2003/03/18 - Amir Noam <amir.noam at intel dot com>
  16  *      - Added support for getting slave's speed and duplex via ethtool.
  17  *        Needed for 802.3ad and other future modes.
  18  *
  19  * 2003/03/18 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and
  20  *              Shmulik Hen <shmulik.hen at intel dot com>
  21  *      - Enable support of modes that need to use the unique mac address of
  22  *        each slave.
  23  *
  24  * 2003/03/18 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and
  25  *              Amir Noam <amir.noam at intel dot com>
  26  *      - Moved driver's private data types to bonding.h
  27  *
  28  * 2003/03/18 - Amir Noam <amir.noam at intel dot com>,
  29  *              Tsippy Mendelson <tsippy.mendelson at intel dot com> and
  30  *              Shmulik Hen <shmulik.hen at intel dot com>
  31  *      - Added support for IEEE 802.3ad Dynamic link aggregation mode.
  32  *
  33  * 2003/05/01 - Amir Noam <amir.noam at intel dot com>
  34  *      - Added ABI version control to restore compatibility between
  35  *        new/old ifenslave and new/old bonding.
  36  *
  37  * 2003/12/01 - Shmulik Hen <shmulik.hen at intel dot com>
  38  *      - Code cleanup and style changes
  39  *
  40  * 2005/05/05 - Jason Gabler <jygabler at lbl dot gov>
  41  *      - added definitions for various XOR hashing policies
  42  */
  43
  44 #ifndef _LINUX_IF_BONDING_H
  45 #define _LINUX_IF_BONDING_H
  46
  47 #include <linux/if.h>
  48 #include <linux/types.h>
  49 #include <linux/if_ether.h>
  50
  51 /* userland - kernel ABI version (2003/05/08) */
  52 #define BOND_ABI_VERSION 2
  53
  54 /*
  55  * We can remove these ioctl definitions in 2.5.  People should use the
  56  * SIOC*** versions of them instead
  57  */
  58 #define BOND_ENSLAVE_OLD                (SIOCDEVPRIVATE)
  59 #define BOND_RELEASE_OLD                (SIOCDEVPRIVATE + 1)
  60 #define BOND_SETHWADDR_OLD              (SIOCDEVPRIVATE + 2)
  61 #define BOND_SLAVE_INFO_QUERY_OLD       (SIOCDEVPRIVATE + 11)
  62 #define BOND_INFO_QUERY_OLD             (SIOCDEVPRIVATE + 12)
  63 #define BOND_CHANGE_ACTIVE_OLD          (SIOCDEVPRIVATE + 13)
  64
  65 #define BOND_CHECK_MII_STATUS   (SIOCGMIIPHY)
  66
  67 #define BOND_MODE_ROUNDROBIN    0
  68 #define BOND_MODE_ACTIVEBACKUP  1
  69 #define BOND_MODE_XOR           2
  70 #define BOND_MODE_BROADCAST     3
  71 #define BOND_MODE_8023AD        4
  72 #define BOND_MODE_TLB           5
  73 #define BOND_MODE_ALB           6 /* TLB + RLB (receive load balancing) */
  74
  75 /* each slave's link has 4 states */
  76 #define BOND_LINK_UP    0           /* link is up and running */
  77 #define BOND_LINK_FAIL  1           /* link has just gone down */
  78 #define BOND_LINK_DOWN  2           /* link has been down for too long time */
  79 #define BOND_LINK_BACK  3           /* link is going back */
  80
  81 /* each slave has several states */
  82 #define BOND_STATE_ACTIVE       0   /* link is active */
  83 #define BOND_STATE_BACKUP       1   /* link is backup */
  84
  85 #define BOND_DEFAULT_MAX_BONDS  1   /* Default maximum number of devices to support */
  86
  87 #define BOND_DEFAULT_TX_QUEUES 16   /* Default number of tx queues per device */
  88
  89 #define BOND_DEFAULT_RESEND_IGMP        1 /* Default number of IGMP membership reports */
  90
  91 /* hashing types */
  92 #define BOND_XMIT_POLICY_LAYER2         0 /* layer 2 (MAC only), default */
  93 #define BOND_XMIT_POLICY_LAYER34        1 /* layer 3+4 (IP ^ (TCP || UDP)) */
  94 #define BOND_XMIT_POLICY_LAYER23        2 /* layer 2+3 (IP ^ MAC) */
  95 #define BOND_XMIT_POLICY_ENCAP23        3 /* encapsulated layer 2+3 */
  96 #define BOND_XMIT_POLICY_ENCAP34        4 /* encapsulated layer 3+4 */
  97
  98 typedef struct ifbond {
  99         __s32 bond_mode;
 100         __s32 num_slaves;
 101         __s32 miimon;
 102 } ifbond;
 103
 104 typedef struct ifslave {
 105         __s32 slave_id; /* Used as an IN param to the BOND_SLAVE_INFO_QUERY ioctl */
 106         char slave_name[IFNAMSIZ];
 107         __s8 link;
 108         __s8 state;
 109         __u32  link_failure_count;
 110 } ifslave;
 111
 112 struct ad_info {
 113         __u16 aggregator_id;
 114         __u16 ports;
 115         __u16 actor_key;
 116         __u16 partner_key;
 117         __u8 partner_system[ETH_ALEN];
 118 };
 119
 120 #endif /* _LINUX_IF_BONDING_H */
 121
 122 /*
 123  * Local variables:
 124  *  version-control: t
 125  *  kept-new-versions: 5
 126  *  c-indent-level: 8
 127  *  c-basic-offset: 8
 128  *  tab-width: 8
 129  * End:
 130  */
 131