include/linux/if_bonding.h

   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 /* hashing types */
  88 #define BOND_XMIT_POLICY_LAYER2         0 /* layer 2 (MAC only), default */
  89 #define BOND_XMIT_POLICY_LAYER34        1 /* layer 3+4 (IP ^ (TCP || UDP)) */
  90 #define BOND_XMIT_POLICY_LAYER23        2 /* layer 2+3 (IP ^ MAC) */
  91
  92 typedef struct ifbond {
  93         __s32 bond_mode;
  94         __s32 num_slaves;
  95         __s32 miimon;
  96 } ifbond;
  97
  98 typedef struct ifslave {
  99         __s32 slave_id; /* Used as an IN param to the BOND_SLAVE_INFO_QUERY ioctl */
 100         char slave_name[IFNAMSIZ];
 101         __s8 link;
 102         __s8 state;
 103         __u32  link_failure_count;
 104 } ifslave;
 105
 106 struct ad_info {
 107         __u16 aggregator_id;
 108         __u16 ports;
 109         __u16 actor_key;
 110         __u16 partner_key;
 111         __u8 partner_system[ETH_ALEN];
 112 };
 113
 114 #endif /* _LINUX_IF_BONDING_H */
 115
 116 /*
 117  * Local variables:
 118  *  version-control: t
 119  *  kept-new-versions: 5
 120  *  c-indent-level: 8
 121  *  c-basic-offset: 8
 122  *  tab-width: 8
 123  * End:
 124  */
 125