if_lagg.h

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    1 /*      $OpenBSD: if_trunk.h,v 1.11 2007/01/31 06:20:19 reyk Exp $      */
    2 
    3 /*
    4  * Copyright (c) 2005, 2006 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  * $FreeBSD: releng/12.0/sys/net/if_lagg.h 334193 2018-05-24 23:21:23Z mmacy $
   19  */
   20 
   21 #ifndef _NET_LAGG_H
   22 #define _NET_LAGG_H
   23 
   24 /*
   25  * Global definitions
   26  */
   27 
   28 #define LAGG_MAX_PORTS          32      /* logically */
   29 #define LAGG_MAX_NAMESIZE       32      /* name of a protocol */
   30 #define LAGG_MAX_STACKING       4       /* maximum number of stacked laggs */
   31 
   32 /* Lagg flags */
   33 #define LAGG_F_HASHL2           0x00000001      /* hash layer 2 */
   34 #define LAGG_F_HASHL3           0x00000002      /* hash layer 3 */
   35 #define LAGG_F_HASHL4           0x00000004      /* hash layer 4 */
   36 #define LAGG_F_HASHMASK         0x00000007
   37 
   38 /* Port flags */
   39 #define LAGG_PORT_SLAVE         0x00000000      /* normal enslaved port */
   40 #define LAGG_PORT_MASTER        0x00000001      /* primary port */
   41 #define LAGG_PORT_STACK         0x00000002      /* stacked lagg port */
   42 #define LAGG_PORT_ACTIVE        0x00000004      /* port is active */
   43 #define LAGG_PORT_COLLECTING    0x00000008      /* port is receiving frames */
   44 #define LAGG_PORT_DISTRIBUTING  0x00000010      /* port is sending frames */
   45 #define LAGG_PORT_BITS          "\2\01MASTER\02STACK\03ACTIVE\04COLLECTING" \
   46                                   "\05DISTRIBUTING"
   47 
   48 /* Supported lagg PROTOs */
   49 typedef enum {
   50         LAGG_PROTO_NONE = 0,    /* no lagg protocol defined */
   51         LAGG_PROTO_ROUNDROBIN,  /* simple round robin */
   52         LAGG_PROTO_FAILOVER,    /* active failover */
   53         LAGG_PROTO_LOADBALANCE, /* loadbalance */
   54         LAGG_PROTO_LACP,        /* 802.3ad lacp */
   55         LAGG_PROTO_BROADCAST,   /* broadcast */
   56         LAGG_PROTO_MAX,
   57 } lagg_proto;
   58 
   59 struct lagg_protos {
   60         const char              *lpr_name;
   61         lagg_proto              lpr_proto;
   62 };
   63 
   64 #define LAGG_PROTO_DEFAULT      LAGG_PROTO_FAILOVER
   65 #define LAGG_PROTOS     {                                               \
   66         { "failover",           LAGG_PROTO_FAILOVER },          \
   67         { "lacp",               LAGG_PROTO_LACP },                      \
   68         { "loadbalance",        LAGG_PROTO_LOADBALANCE },               \
   69         { "roundrobin", LAGG_PROTO_ROUNDROBIN },                \
   70         { "broadcast",  LAGG_PROTO_BROADCAST },         \
   71         { "none",               LAGG_PROTO_NONE },                      \
   72         { "default",            LAGG_PROTO_DEFAULT }                    \
   73 }
   74 
   75 /*
   76  * lagg ioctls.
   77  */
   78 
   79 /*
   80  * LACP current operational parameters structure.
   81  */
   82 struct lacp_opreq {
   83         uint16_t                actor_prio;
   84         uint8_t                 actor_mac[ETHER_ADDR_LEN];
   85         uint16_t                actor_key;
   86         uint16_t                actor_portprio;
   87         uint16_t                actor_portno;
   88         uint8_t                 actor_state;
   89         uint16_t                partner_prio;
   90         uint8_t                 partner_mac[ETHER_ADDR_LEN];
   91         uint16_t                partner_key;
   92         uint16_t                partner_portprio;
   93         uint16_t                partner_portno;
   94         uint8_t                 partner_state;
   95 };
   96 
   97 /* lagg port settings */
   98 struct lagg_reqport {
   99         char                    rp_ifname[IFNAMSIZ];    /* name of the lagg */
  100         char                    rp_portname[IFNAMSIZ];  /* name of the port */
  101         u_int32_t               rp_prio;                /* port priority */
  102         u_int32_t               rp_flags;               /* port flags */
  103         union {
  104                 struct lacp_opreq rpsc_lacp;
  105         } rp_psc;
  106 #define rp_lacpreq      rp_psc.rpsc_lacp
  107 };
  108 
  109 #define SIOCGLAGGPORT           _IOWR('i', 140, struct lagg_reqport)
  110 #define SIOCSLAGGPORT            _IOW('i', 141, struct lagg_reqport)
  111 #define SIOCSLAGGDELPORT         _IOW('i', 142, struct lagg_reqport)
  112 
  113 /* lagg, ports and options */
  114 struct lagg_reqall {
  115         char                    ra_ifname[IFNAMSIZ];    /* name of the lagg */
  116         u_int                   ra_proto;               /* lagg protocol */
  117 
  118         size_t                  ra_size;                /* size of buffer */
  119         struct lagg_reqport     *ra_port;               /* allocated buffer */
  120         int                     ra_ports;               /* total port count */
  121         union {
  122                 struct lacp_opreq rpsc_lacp;
  123         } ra_psc;
  124 #define ra_lacpreq      ra_psc.rpsc_lacp
  125 };
  126 
  127 #define SIOCGLAGG               _IOWR('i', 143, struct lagg_reqall)
  128 #define SIOCSLAGG                _IOW('i', 144, struct lagg_reqall)
  129 
  130 struct lagg_reqflags {
  131         char                    rf_ifname[IFNAMSIZ];    /* name of the lagg */
  132         uint32_t                rf_flags;               /* lagg protocol */
  133 };
  134 
  135 #define SIOCGLAGGFLAGS          _IOWR('i', 145, struct lagg_reqflags)
  136 #define SIOCSLAGGHASH            _IOW('i', 146, struct lagg_reqflags)
  137 
  138 struct lagg_reqopts {
  139         char                    ro_ifname[IFNAMSIZ];    /* name of the lagg */
  140 
  141         int                     ro_opts;                /* Option bitmap */
  142 #define LAGG_OPT_NONE                   0x00
  143 #define LAGG_OPT_USE_FLOWID             0x01            /* enable use of flowid */
  144 /* Pseudo flags which are used in ro_opts but not stored into sc_opts. */
  145 #define LAGG_OPT_FLOWIDSHIFT            0x02            /* set flowid shift */
  146 #define LAGG_OPT_FLOWIDSHIFT_MASK       0x1f            /* flowid is uint32_t */
  147 #define LAGG_OPT_LACP_STRICT            0x10            /* LACP strict mode */
  148 #define LAGG_OPT_LACP_TXTEST            0x20            /* LACP debug: txtest */
  149 #define LAGG_OPT_LACP_RXTEST            0x40            /* LACP debug: rxtest */
  150 #define LAGG_OPT_LACP_TIMEOUT           0x80            /* LACP timeout */
  151         u_int                   ro_count;               /* number of ports */
  152         u_int                   ro_active;              /* active port count */
  153         u_int                   ro_flapping;            /* number of flapping */
  154         int                     ro_flowid_shift;        /* shift the flowid */
  155         uint32_t                ro_bkt;                 /* packet bucket for roundrobin */
  156 };
  157 
  158 #define SIOCGLAGGOPTS           _IOWR('i', 152, struct lagg_reqopts)
  159 #define SIOCSLAGGOPTS            _IOW('i', 153, struct lagg_reqopts)
  160 
  161 #define LAGG_OPT_BITS           "\020\001USE_FLOWID\005LACP_STRICT" \
  162                                 "\006LACP_TXTEST\007LACP_RXTEST"
  163 
  164 #ifdef _KERNEL
  165 
  166 /*
  167  * Internal kernel part
  168  */
  169 
  170 #define LAGG_PORTACTIVE(_tp)    (                                       \
  171         ((_tp)->lp_ifp->if_link_state == LINK_STATE_UP) &&              \
  172         ((_tp)->lp_ifp->if_flags & IFF_UP)                              \
  173 )
  174 
  175 struct lagg_ifreq {
  176         union {
  177                 struct ifreq ifreq;
  178                 struct {
  179                         char ifr_name[IFNAMSIZ];
  180                         struct sockaddr_storage ifr_ss;
  181                 } ifreq_storage;
  182         } ifreq;
  183 };
  184 
  185 #define sc_ifflags              sc_ifp->if_flags                /* flags */
  186 #define sc_ifname               sc_ifp->if_xname                /* name */
  187 
  188 /* Private data used by the loadbalancing protocol */
  189 struct lagg_lb {
  190         u_int32_t               lb_key;
  191         struct lagg_port        *lb_ports[LAGG_MAX_PORTS];
  192 };
  193 
  194 struct lagg_mc {
  195         struct sockaddr_dl      mc_addr;
  196         struct ifmultiaddr      *mc_ifma;
  197         SLIST_ENTRY(lagg_mc)    mc_entries;
  198 };
  199 
  200 struct lagg_counters {
  201         uint64_t        val[IFCOUNTERS];
  202 };
  203 
  204 struct lagg_softc {
  205         struct ifnet                    *sc_ifp;        /* virtual interface */
  206         struct rmlock                   sc_mtx;
  207         struct sx                       sc_sx;
  208         int                             sc_proto;       /* lagg protocol */
  209         u_int                           sc_count;       /* number of ports */
  210         u_int                           sc_active;      /* active port count */
  211         u_int                           sc_flapping;    /* number of flapping
  212                                                          * events */
  213         struct lagg_port                *sc_primary;    /* primary port */
  214         struct ifmedia                  sc_media;       /* media config */
  215         void                            *sc_psc;        /* protocol data */
  216         uint32_t                        sc_seq;         /* sequence counter */
  217         uint32_t                        sc_flags;
  218         int                             sc_destroying;  /* destroying lagg */
  219 
  220         CK_SLIST_HEAD(__tplhd, lagg_port)       sc_ports;       /* list of interfaces */
  221         SLIST_ENTRY(lagg_softc) sc_entries;
  222 
  223         eventhandler_tag vlan_attach;
  224         eventhandler_tag vlan_detach;
  225         struct callout                  sc_callout;
  226         u_int                           sc_opts;
  227         int                             flowid_shift;   /* shift the flowid */
  228         uint32_t                        sc_bkt;         /* packates bucket for roundrobin */
  229         uint32_t                        sc_bkt_count;   /* packates bucket count for roundrobin */
  230         struct lagg_counters            detached_counters; /* detached ports sum */
  231 };
  232 
  233 struct lagg_port {
  234         struct ifnet                    *lp_ifp;        /* physical interface */
  235         struct lagg_softc               *lp_softc;      /* parent lagg */
  236         uint8_t                         lp_lladdr[ETHER_ADDR_LEN];
  237 
  238         u_char                          lp_iftype;      /* interface type */
  239         uint32_t                        lp_prio;        /* port priority */
  240         uint32_t                        lp_flags;       /* port flags */
  241         int                             lp_ifflags;     /* saved ifp flags */
  242         int                             lp_ifcapenable; /* saved ifp capenable */
  243         void                            *lh_cookie;     /* if state hook */
  244         void                            *lp_psc;        /* protocol data */
  245         int                             lp_detaching;   /* ifnet is detaching */
  246         SLIST_HEAD(__mclhd, lagg_mc)    lp_mc_head;     /* multicast addresses */
  247 
  248         /* Redirected callbacks */
  249         int     (*lp_ioctl)(struct ifnet *, u_long, caddr_t);
  250         int     (*lp_output)(struct ifnet *, struct mbuf *,
  251                      const struct sockaddr *, struct route *);
  252         struct lagg_counters            port_counters;  /* ifp counters copy */
  253 
  254         CK_SLIST_ENTRY(lagg_port)               lp_entries;
  255         struct epoch_context    lp_epoch_ctx;
  256 };
  257 
  258 extern struct mbuf *(*lagg_input_p)(struct ifnet *, struct mbuf *);
  259 extern void     (*lagg_linkstate_p)(struct ifnet *, int );
  260 
  261 int             lagg_enqueue(struct ifnet *, struct mbuf *);
  262 
  263 SYSCTL_DECL(_net_link_lagg);
  264 
  265 #endif /* _KERNEL */
  266 
  267 #endif /* _NET_LAGG_H */
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FreeBSD/Linux Kernel Cross Reference sys/net/if_lagg.h

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