if_trunk.h

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    1 /*      $OpenBSD: if_trunk.h,v 1.30 2020/07/22 02:16:02 dlg Exp $       */
    2 
    3 /*
    4  * Copyright (c) 2005, 2006, 2007 Reyk Floeter <reyk@openbsd.org>
    5  *
    6  * Permission to use, copy, modify, and distribute this software for any
    7  * purpose with or without fee is hereby granted, provided that the above
    8  * copyright notice and this permission notice appear in all copies.
    9  *
   10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
   17  */
   18 
   19 #ifndef _NET_TRUNK_H
   20 #define _NET_TRUNK_H
   21 
   22 /*
   23  * Global definitions
   24  */
   25 
   26 #define TRUNK_MAX_PORTS         32      /* logically */
   27 #define TRUNK_MAX_NAMESIZE      32      /* name of a protocol */
   28 #define TRUNK_MAX_STACKING      4       /* maximum number of stacked trunks */
   29 
   30 /* Port flags */
   31 #define TRUNK_PORT_SLAVE                0x00000000 /* normal enslaved port */
   32 #define TRUNK_PORT_MASTER               0x00000001 /* primary port */
   33 #define TRUNK_PORT_STACK                0x00000002 /* stacked trunk port */
   34 #define TRUNK_PORT_ACTIVE               0x00000004 /* port is active */
   35 #define TRUNK_PORT_COLLECTING           0x00000008 /* port is receiving frames */
   36 #define TRUNK_PORT_DISTRIBUTING 0x00000010 /* port is sending frames */
   37 #define TRUNK_PORT_DISABLED             0x00000020 /* port is disabled */
   38 #define TRUNK_PORT_GLOBAL               0x80000000 /* IOCTL: global flag */
   39 #define TRUNK_PORT_BITS         "\2\01MASTER\02STACK\03ACTIVE" \
   40                                          "\04COLLECTING\05DISTRIBUTING\06DISABLED"
   41 
   42 /* Supported trunk PROTOs */
   43 enum trunk_proto {
   44         TRUNK_PROTO_NONE        = 0,            /* no trunk protocol defined */
   45         TRUNK_PROTO_ROUNDROBIN  = 1,            /* simple round robin */
   46         TRUNK_PROTO_FAILOVER    = 2,            /* active failover */
   47         TRUNK_PROTO_LOADBALANCE = 3,            /* loadbalance */
   48         TRUNK_PROTO_BROADCAST   = 4,            /* broadcast */
   49         TRUNK_PROTO_LACP        = 5,            /* 802.3ad LACP */
   50         TRUNK_PROTO_MAX         = 6
   51 };
   52 
   53 struct trunk_protos {
   54         const char              *tpr_name;
   55         enum trunk_proto        tpr_proto;
   56 };
   57 
   58 #define TRUNK_PROTO_DEFAULT     TRUNK_PROTO_ROUNDROBIN
   59 #define TRUNK_PROTOS    {                                               \
   60         { "roundrobin",         TRUNK_PROTO_ROUNDROBIN },               \
   61         { "failover",           TRUNK_PROTO_FAILOVER },                 \
   62         { "lacp",               TRUNK_PROTO_LACP },                     \
   63         { "loadbalance",        TRUNK_PROTO_LOADBALANCE },              \
   64         { "broadcast",          TRUNK_PROTO_BROADCAST },                \
   65         { "none",               TRUNK_PROTO_NONE },                     \
   66         { "default",            TRUNK_PROTO_DEFAULT }                   \
   67 }
   68 
   69 /*
   70  * Trunk ioctls.
   71  */
   72 
   73 /*
   74  * LACP current operational parameters structure.
   75  */
   76 struct lacp_opreq {
   77         u_int16_t               actor_prio;
   78         u_int8_t                actor_mac[ETHER_ADDR_LEN];
   79         u_int16_t               actor_key;
   80         u_int16_t               actor_portprio;
   81         u_int16_t               actor_portno;
   82         u_int8_t                actor_state;
   83         u_int16_t               partner_prio;
   84         u_int8_t                partner_mac[ETHER_ADDR_LEN];
   85         u_int16_t               partner_key;
   86         u_int16_t               partner_portprio;
   87         u_int16_t               partner_portno;
   88         u_int8_t                partner_state;
   89 };
   90 
   91 /* Trunk port settings */
   92 struct trunk_reqport {
   93         char                    rp_ifname[IFNAMSIZ];    /* name of the trunk */
   94         char                    rp_portname[IFNAMSIZ];  /* name of the port */
   95         u_int32_t               rp_prio;                /* port priority */
   96         u_int32_t               rp_flags;               /* port flags */
   97         union {
   98                 struct lacp_opreq rpsc_lacp;
   99         } rp_psc;
  100 #define rp_lacpreq      rp_psc.rpsc_lacp
  101 };
  102 
  103 #define SIOCGTRUNKPORT          _IOWR('i', 140, struct trunk_reqport)
  104 #define SIOCSTRUNKPORT           _IOW('i', 141, struct trunk_reqport)
  105 #define SIOCSTRUNKDELPORT        _IOW('i', 142, struct trunk_reqport)
  106 
  107 /* Trunk, ports and options */
  108 struct trunk_reqall {
  109         char                    ra_ifname[IFNAMSIZ];    /* name of the trunk */
  110         u_int                   ra_proto;               /* trunk protocol */
  111 
  112         size_t                  ra_size;                /* size of buffer */
  113         struct trunk_reqport    *ra_port;               /* allocated buffer */
  114         int                     ra_ports;               /* total port count */
  115         union {
  116                 struct lacp_opreq rpsc_lacp;
  117         } ra_psc;
  118 #define ra_lacpreq      ra_psc.rpsc_lacp
  119 };
  120 
  121 #define SIOCGTRUNK              _IOWR('i', 143, struct trunk_reqall)
  122 #define SIOCSTRUNK               _IOW('i', 144, struct trunk_reqall)
  123 
  124 /* LACP administrative options */
  125 struct lacp_adminopts {
  126         u_int8_t                lacp_mode;              /* active or passive */
  127         u_int8_t                lacp_timeout;           /* fast or slow */
  128         u_int16_t               lacp_prio;              /* system priority */
  129         u_int16_t               lacp_portprio;          /* port priority */
  130         u_int8_t                lacp_ifqprio;           /* ifq priority */
  131 };
  132 
  133 /* Trunk administrative options */
  134 struct trunk_opts {
  135         char                    to_ifname[IFNAMSIZ];    /* name of the trunk */
  136         u_int                   to_proto;               /* trunk protocol */
  137         int                     to_opts;                /* option bitmap */
  138 #define TRUNK_OPT_NONE                  0x00
  139 #define TRUNK_OPT_LACP_MODE             0x01            /* set active bit */
  140 #define TRUNK_OPT_LACP_TIMEOUT          0x02            /* set timeout bit */
  141 #define TRUNK_OPT_LACP_SYS_PRIO         0x04            /* set sys_prio bit */
  142 #define TRUNK_OPT_LACP_PORT_PRIO        0x08            /* set port_prio bit */
  143 #define TRUNK_OPT_LACP_IFQ_PRIO         0x10            /* set ifq_prio bit */
  144 
  145         union {
  146                 struct lacp_adminopts rpsc_lacp;
  147         } to_psc;
  148 #define to_lacpopts     to_psc.rpsc_lacp
  149 };
  150 
  151 #define SIOCGTRUNKOPTS          _IOWR('i', 145, struct trunk_opts)
  152 #define SIOCSTRUNKOPTS           _IOW('i', 146, struct trunk_opts)
  153 
  154 #ifdef _KERNEL
  155 /*
  156  * Internal kernel part
  157  */
  158 struct trunk_softc;
  159 struct trunk_port {
  160         struct ifnet                    *tp_if;         /* physical interface */
  161         struct trunk_softc              *tp_trunk;      /* parent trunk */
  162         u_int8_t                        tp_lladdr[ETHER_ADDR_LEN];
  163         caddr_t                         tp_psc;         /* protocol data */
  164 
  165         u_char                          tp_iftype;      /* interface type */
  166         u_int32_t                       tp_prio;        /* port priority */
  167         u_int32_t                       tp_flags;       /* port flags */
  168         struct task                     tp_ltask;       /* if state hook */
  169         struct task                     tp_dtask;       /* if detach hook */
  170 
  171         /* Redirected callbacks */
  172         int     (*tp_ioctl)(struct ifnet *, u_long, caddr_t);
  173         int     (*tp_output)(struct ifnet *, struct mbuf *, struct sockaddr *,
  174                     struct rtentry *);
  175         void    (*tp_input)(struct ifnet *, struct mbuf *);
  176 
  177         SLIST_ENTRY(trunk_port)         tp_entries;
  178 };
  179 
  180 #define tp_ifname               tp_if->if_xname         /* interface name */
  181 #define tp_ifflags              tp_if->if_flags         /* interface flags */
  182 #define tp_link_state           tp_if->if_link_state    /* link state */
  183 #define tp_capabilities         tp_if->if_capabilities  /* capabilities */
  184 
  185 #define TRUNK_PORTACTIVE(_tp)   (                                       \
  186         LINK_STATE_IS_UP((_tp)->tp_link_state) &&                       \
  187         (_tp)->tp_ifflags & IFF_UP)
  188 
  189 struct trunk_mc {
  190         union {
  191                 struct ether_multi      *mcu_enm;
  192         } mc_u;
  193         struct sockaddr_storage         mc_addr;
  194 
  195         SLIST_ENTRY(trunk_mc)           mc_entries;
  196 };
  197 
  198 #define mc_enm  mc_u.mcu_enm
  199 
  200 struct trunk_ifreq {
  201         union {
  202                 struct ifreq ifreq;
  203                 struct {
  204                         char ifr_name[IFNAMSIZ];
  205                         struct sockaddr_storage ifr_ss;
  206                 } ifreq_storage;
  207         } ifreq;
  208 };
  209 
  210 struct trunk_softc {
  211         struct arpcom                   tr_ac;          /* virtual interface */
  212         enum trunk_proto                tr_proto;       /* trunk protocol */
  213         u_int                           tr_count;       /* number of ports */
  214         struct trunk_port               *tr_primary;    /* primary port */
  215         struct ifmedia                  tr_media;       /* media config */
  216         caddr_t                         tr_psc;         /* protocol data */
  217 
  218         SLIST_HEAD(__tplhd, trunk_port) tr_ports;       /* list of interfaces */
  219         SLIST_ENTRY(trunk_softc)        tr_entries;
  220 
  221         SLIST_HEAD(__mclhd, trunk_mc)   tr_mc_head;     /* multicast addresses */
  222 
  223         /* Trunk protocol callbacks */
  224         int     (*tr_detach)(struct trunk_softc *);
  225         int     (*tr_start)(struct trunk_softc *, struct mbuf *);
  226         int     (*tr_input)(struct trunk_softc *, struct trunk_port *,
  227                     struct mbuf *);
  228         int     (*tr_port_create)(struct trunk_port *);
  229         void    (*tr_port_destroy)(struct trunk_port *);
  230         void    (*tr_linkstate)(struct trunk_port *);
  231         void    (*tr_init)(struct trunk_softc *);
  232         void    (*tr_stop)(struct trunk_softc *);
  233         void    (*tr_req)(struct trunk_softc *, caddr_t);
  234         void    (*tr_portreq)(struct trunk_port *, caddr_t);
  235 };
  236 
  237 #define tr_ifflags              tr_ac.ac_if.if_flags            /* flags */
  238 #define tr_ifname               tr_ac.ac_if.if_xname            /* name */
  239 #define tr_capabilities         tr_ac.ac_if.if_capabilities     /* capabilities */
  240 #define tr_ifindex              tr_ac.ac_if.if_index            /* int index */
  241 #define tr_lladdr               tr_ac.ac_enaddr                 /* lladdr */
  242 
  243 #define IFCAP_TRUNK_MASK        0xffff0000      /* private capabilities */
  244 #define IFCAP_TRUNK_FULLDUPLEX  0x00010000      /* full duplex with >1 ports */
  245 
  246 /* Private data used by the loadbalancing protocol */
  247 struct trunk_lb {
  248         SIPHASH_KEY             lb_key;
  249         struct trunk_port       *lb_ports[TRUNK_MAX_PORTS];
  250 };
  251 
  252 int             trunk_enqueue(struct ifnet *, struct mbuf *);
  253 u_int32_t       trunk_hashmbuf(struct mbuf *, SIPHASH_KEY *);
  254 #endif /* _KERNEL */
  255 
  256 #endif /* _NET_TRUNK_H */
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FreeBSD/Linux Kernel Cross Reference sys/net/if_trunk.h

FreeBSD/Linux Kernel Cross Reference
sys/net/if_trunk.h
