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  * $FreeBSD$
   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 /* Supported lagg TYPEs */
   76 typedef enum {
   77         LAGG_TYPE_ETHERNET = 0, /* ethernet (default) */
   78         LAGG_TYPE_INFINIBAND,   /* infiniband */
   79         LAGG_TYPE_MAX,
   80 } lagg_type;
   81 
   82 struct lagg_types {
   83         const char              *lt_name;
   84         lagg_type               lt_value;
   85 };
   86 
   87 #define LAGG_TYPE_DEFAULT       LAGG_TYPE_ETHERNET
   88 #define LAGG_TYPES      {                                               \
   89         { "ethernet",           LAGG_TYPE_ETHERNET },                   \
   90         { "infiniband",         LAGG_TYPE_INFINIBAND },                 \
   91 }
   92 
   93 /*
   94  * lagg create clone params
   95  */
   96 struct iflaggparam {
   97         uint8_t lagg_type;      /* see LAGG_TYPE_XXX */
   98         uint8_t reserved_8[3];
   99         uint32_t reserved_32[3];
  100 };
  101 
  102 /*
  103  * lagg ioctls.
  104  */
  105 
  106 /*
  107  * LACP current operational parameters structure.
  108  */
  109 struct lacp_opreq {
  110         uint16_t                actor_prio;
  111         uint8_t                 actor_mac[ETHER_ADDR_LEN];
  112         uint16_t                actor_key;
  113         uint16_t                actor_portprio;
  114         uint16_t                actor_portno;
  115         uint8_t                 actor_state;
  116         uint16_t                partner_prio;
  117         uint8_t                 partner_mac[ETHER_ADDR_LEN];
  118         uint16_t                partner_key;
  119         uint16_t                partner_portprio;
  120         uint16_t                partner_portno;
  121         uint8_t                 partner_state;
  122 };
  123 
  124 /* lagg port settings */
  125 struct lagg_reqport {
  126         char                    rp_ifname[IFNAMSIZ];    /* name of the lagg */
  127         char                    rp_portname[IFNAMSIZ];  /* name of the port */
  128         u_int32_t               rp_prio;                /* port priority */
  129         u_int32_t               rp_flags;               /* port flags */
  130         union {
  131                 struct lacp_opreq rpsc_lacp;
  132         } rp_psc;
  133 #define rp_lacpreq      rp_psc.rpsc_lacp
  134 };
  135 
  136 #define SIOCGLAGGPORT           _IOWR('i', 140, struct lagg_reqport)
  137 #define SIOCSLAGGPORT            _IOW('i', 141, struct lagg_reqport)
  138 #define SIOCSLAGGDELPORT         _IOW('i', 142, struct lagg_reqport)
  139 
  140 /* lagg, ports and options */
  141 struct lagg_reqall {
  142         char                    ra_ifname[IFNAMSIZ];    /* name of the lagg */
  143         u_int                   ra_proto;               /* lagg protocol */
  144 
  145         size_t                  ra_size;                /* size of buffer */
  146         struct lagg_reqport     *ra_port;               /* allocated buffer */
  147         int                     ra_ports;               /* total port count */
  148         union {
  149                 struct lacp_opreq rpsc_lacp;
  150         } ra_psc;
  151 #define ra_lacpreq      ra_psc.rpsc_lacp
  152 };
  153 
  154 #define SIOCGLAGG               _IOWR('i', 143, struct lagg_reqall)
  155 #define SIOCSLAGG                _IOW('i', 144, struct lagg_reqall)
  156 
  157 struct lagg_reqflags {
  158         char                    rf_ifname[IFNAMSIZ];    /* name of the lagg */
  159         uint32_t                rf_flags;               /* lagg protocol */
  160 };
  161 
  162 #define SIOCGLAGGFLAGS          _IOWR('i', 145, struct lagg_reqflags)
  163 #define SIOCSLAGGHASH            _IOW('i', 146, struct lagg_reqflags)
  164 
  165 struct lagg_reqopts {
  166         char                    ro_ifname[IFNAMSIZ];    /* name of the lagg */
  167 
  168         int                     ro_opts;                /* Option bitmap */
  169 #define LAGG_OPT_NONE                   0x00
  170 #define LAGG_OPT_USE_FLOWID             0x01            /* enable use of flowid */
  171 /* Pseudo flags which are used in ro_opts but not stored into sc_opts. */
  172 #define LAGG_OPT_FLOWIDSHIFT            0x02            /* set flowid shift */
  173 #define LAGG_OPT_FLOWIDSHIFT_MASK       0x1f            /* flowid is uint32_t */
  174 #define LAGG_OPT_LACP_STRICT            0x10            /* LACP strict mode */
  175 #define LAGG_OPT_LACP_TXTEST            0x20            /* LACP debug: txtest */
  176 #define LAGG_OPT_LACP_RXTEST            0x40            /* LACP debug: rxtest */
  177 #define LAGG_OPT_LACP_FAST_TIMO         0x80            /* LACP fast timeout */
  178 #define LAGG_OPT_RR_LIMIT               0x100           /* RR stride */
  179         u_int                   ro_count;               /* number of ports */
  180         u_int                   ro_active;              /* active port count */
  181         u_int                   ro_flapping;            /* number of flapping */
  182         int                     ro_flowid_shift;        /* shift the flowid */
  183         uint32_t                ro_bkt;                 /* stride for RR */
  184 };
  185 
  186 #define SIOCGLAGGOPTS           _IOWR('i', 152, struct lagg_reqopts)
  187 #define SIOCSLAGGOPTS            _IOW('i', 153, struct lagg_reqopts)
  188 
  189 #define LAGG_OPT_BITS           "\020\001USE_FLOWID\005LACP_STRICT" \
  190                                 "\006LACP_TXTEST\007LACP_RXTEST" \
  191                                 "\010LACP_FAST_TIMO"
  192 
  193 #ifdef _KERNEL
  194 
  195 /*
  196  * Internal kernel part
  197  */
  198 
  199 #define LAGG_PORTACTIVE(_tp)    (                                       \
  200         ((_tp)->lp_ifp->if_link_state == LINK_STATE_UP) &&              \
  201         ((_tp)->lp_ifp->if_flags & IFF_UP)                              \
  202 )
  203 
  204 struct lagg_ifreq {
  205         union {
  206                 struct ifreq ifreq;
  207                 struct {
  208                         char ifr_name[IFNAMSIZ];
  209                         struct sockaddr_storage ifr_ss;
  210                 } ifreq_storage;
  211         } ifreq;
  212 };
  213 
  214 #define sc_ifflags              sc_ifp->if_flags                /* flags */
  215 #define sc_ifname               sc_ifp->if_xname                /* name */
  216 
  217 /* Private data used by the loadbalancing protocol */
  218 struct lagg_lb {
  219         u_int32_t               lb_key;
  220         struct lagg_port        *lb_ports[LAGG_MAX_PORTS];
  221 };
  222 
  223 struct lagg_mc {
  224         struct sockaddr_dl      mc_addr;
  225         struct ifmultiaddr      *mc_ifma;
  226         SLIST_ENTRY(lagg_mc)    mc_entries;
  227 };
  228 
  229 struct lagg_counters {
  230         uint64_t        val[IFCOUNTERS];
  231 };
  232 
  233 struct lagg_softc {
  234         struct ifnet                    *sc_ifp;        /* virtual interface */
  235         struct mtx                      sc_mtx;         /* watchdog mutex */
  236         struct sx                       sc_sx;
  237         int                             sc_proto;       /* lagg protocol */
  238         u_int                           sc_count;       /* number of ports */
  239         u_int                           sc_active;      /* active port count */
  240         u_int                           sc_flapping;    /* number of flapping
  241                                                          * events */
  242         struct lagg_port                *sc_primary;    /* primary port */
  243         struct ifmedia                  sc_media;       /* media config */
  244         void                            *sc_psc;        /* protocol data */
  245         uint32_t                        sc_seq;         /* sequence counter */
  246         uint32_t                        sc_stride;      /* stride for RR */
  247         uint32_t                        sc_flags;
  248         int                             sc_destroying;  /* destroying lagg */
  249 
  250         CK_SLIST_HEAD(__tplhd, lagg_port)       sc_ports;       /* list of interfaces */
  251         SLIST_ENTRY(lagg_softc) sc_entries;
  252 
  253         eventhandler_tag vlan_attach;
  254         eventhandler_tag vlan_detach;
  255         struct callout                  sc_callout;
  256         u_int                           sc_opts;
  257         int                             flowid_shift;   /* shift the flowid */
  258         struct lagg_counters            detached_counters; /* detached ports sum */
  259         struct callout                  sc_watchdog;    /* watchdog timer */
  260 #define LAGG_ADDR_LEN \
  261         MAX(INFINIBAND_ADDR_LEN, ETHER_ADDR_LEN)
  262         uint8_t                         sc_bcast_addr[LAGG_ADDR_LEN];
  263 };
  264 
  265 struct lagg_port {
  266         struct ifnet                    *lp_ifp;        /* physical interface */
  267         struct lagg_softc               *lp_softc;      /* parent lagg */
  268         uint8_t                         lp_lladdr[LAGG_ADDR_LEN];
  269 
  270         u_char                          lp_iftype;      /* interface type */
  271         uint32_t                        lp_prio;        /* port priority */
  272         uint32_t                        lp_flags;       /* port flags */
  273         int                             lp_ifflags;     /* saved ifp flags */
  274         int                             lp_ifcapenable; /* saved ifp capenable */
  275         void                            *lh_cookie;     /* if state hook */
  276         void                            *lp_psc;        /* protocol data */
  277         int                             lp_detaching;   /* ifnet is detaching */
  278         SLIST_HEAD(__mclhd, lagg_mc)    lp_mc_head;     /* multicast addresses */
  279 
  280         /* Redirected callbacks */
  281         int     (*lp_ioctl)(struct ifnet *, u_long, caddr_t);
  282         int     (*lp_output)(struct ifnet *, struct mbuf *,
  283                      const struct sockaddr *, struct route *);
  284         struct lagg_counters            port_counters;  /* ifp counters copy */
  285 
  286         CK_SLIST_ENTRY(lagg_port)               lp_entries;
  287         struct epoch_context    lp_epoch_ctx;
  288 };
  289 
  290 extern struct mbuf *(*lagg_input_ethernet_p)(struct ifnet *, struct mbuf *);
  291 extern struct mbuf *(*lagg_input_infiniband_p)(struct ifnet *, struct mbuf *);
  292 extern void     (*lagg_linkstate_p)(struct ifnet *, int );
  293 
  294 int             lagg_enqueue(struct ifnet *, struct mbuf *);
  295 
  296 SYSCTL_DECL(_net_link_lagg);
  297 
  298 #endif /* _KERNEL */
  299 
  300 #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
