The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/net/if_atm.h

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    1 /*      $NetBSD: if_atm.h,v 1.7 1996/11/09 23:02:27 chuck Exp $       */
    2 /* $FreeBSD: releng/6.0/sys/net/if_atm.h 149443 2005-08-25 05:01:24Z rwatson $ */
    3 
    4 /*-
    5  *
    6  * Copyright (c) 1996 Charles D. Cranor and Washington University.
    7  * All rights reserved.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  * 3. All advertising materials mentioning features or use of this software
   18  *    must display the following acknowledgement:
   19  *      This product includes software developed by Charles D. Cranor and
   20  *      Washington University.
   21  * 4. The name of the author may not be used to endorse or promote products
   22  *    derived from this software without specific prior written permission.
   23  *
   24  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   25  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   26  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   27  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   28  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   29  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   30  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   32  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   33  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   34  */
   35 
   36 /*
   37  * net/if_atm.h
   38  */
   39 
   40 /*
   41  * Classification of ATM cards.
   42  */
   43 #define ATM_DEVICE_UNKNOWN      0
   44 #define ATM_DEVICE_PCA200E      1       /* Fore/Marconi PCA200-E */
   45 #define ATM_DEVICE_HE155        2       /* Fore/Marconi HE155 */
   46 #define ATM_DEVICE_HE622        3       /* Fore/Marconi HE622 */
   47 #define ATM_DEVICE_ENI155P      4       /* Efficient networks 155p */
   48 #define ATM_DEVICE_ADP155P      5       /* Adaptec 155p */
   49 #define ATM_DEVICE_FORELE25     6       /* ForeRunnerLE 25 */
   50 #define ATM_DEVICE_FORELE155    7       /* ForeRunnerLE 155 */
   51 #define ATM_DEVICE_NICSTAR25    8       /* other 77211 25.6MBit */
   52 #define ATM_DEVICE_NICSTAR155   9       /* other 77211 155MBit */
   53 #define ATM_DEVICE_IDTABR25     10      /* 77252 based card 25MBit */
   54 #define ATM_DEVICE_IDTABR155    11      /* 77252 based card 155MBit */
   55 #define ATM_DEVICE_PROATM25     12      /* 77252 based ProSum card 25MBit */
   56 #define ATM_DEVICE_PROATM155    13      /* 77252 based ProSum card 155MBit */
   57 #define ATM_DEVICE_VIRTUAL      14      /* virtual ATM device (netgraph) */
   58 
   59 /* map to strings and vendors */
   60 #define ATM_DEVICE_NAMES                                                \
   61         { "Unknown",            "Unknown" },                            \
   62         { "PCA200-E",           "Fore/Marconi" },                       \
   63         { "HE155",              "Fore/Marconi" },                       \
   64         { "HE622",              "Fore/Marconi" },                       \
   65         { "ENI155p",            "Efficient Networks" },                 \
   66         { "ADP155p",            "Adaptec" },                            \
   67         { "ForeRunnerLE25",     "Fore/Marconi" },                       \
   68         { "ForeRunnerLE155",    "Fore/Marconi" },                       \
   69         { "IDT77211/25",        "IDT" },                                \
   70         { "IDT77211/155",       "IDT" },                                \
   71         { "IDT77252/25",        "IDT" },                                \
   72         { "IDT77252/155",       "IDT" },                                \
   73         { "ProATM/25",          "ProSum" },                             \
   74         { "ProATM/155",         "ProSum" },                             \
   75         { "Virtual",            "NetGraph" },
   76 
   77 /*
   78  * This is the common link layer MIB for all ATM interfaces. Much of the
   79  * information here is needed for ILMI. This will be augmented by statistics
   80  * at some point.
   81  */
   82 struct ifatm_mib {
   83         /* configuration data */
   84         uint8_t         device;         /* type of card */
   85         u_char          esi[6];         /* end system identifier (MAC) */
   86         uint32_t        serial;         /* card serial number */
   87         uint32_t        hw_version;     /* card version */
   88         uint32_t        sw_version;     /* firmware version (if any) */
   89         uint32_t        pcr;            /* supported peak cell rate */
   90         uint32_t        media;          /* physical media */
   91         uint8_t         vpi_bits;       /* number of used bits in VPI field */
   92         uint8_t         vci_bits;       /* number of used bits in VCI field */
   93         uint16_t        max_vpcs;       /* maximum number of VPCs */
   94         uint32_t        max_vccs;       /* maximum number of VCCs */
   95 };
   96 
   97 /*
   98  * Traffic parameters for ATM connections. This contains all parameters
   99  * to accomodate UBR, UBR+MCR, CBR, VBR and ABR connections.
  100  *
  101  * Keep in sync with ng_atm.h
  102  */
  103 struct atmio_tparam {
  104         uint32_t        pcr;    /* 24bit: Peak Cell Rate */
  105         uint32_t        scr;    /* 24bit: VBR Sustainable Cell Rate */
  106         uint32_t        mbs;    /* 24bit: VBR Maximum burst size */
  107         uint32_t        mcr;    /* 24bit: ABR/VBR/UBR+MCR MCR */
  108         uint32_t        icr;    /* 24bit: ABR ICR */
  109         uint32_t        tbe;    /* 24bit: ABR TBE (1...2^24-1) */
  110         uint8_t         nrm;    /*  3bit: ABR Nrm */
  111         uint8_t         trm;    /*  3bit: ABR Trm */
  112         uint16_t        adtf;   /* 10bit: ABR ADTF */
  113         uint8_t         rif;    /*  4bit: ABR RIF */
  114         uint8_t         rdf;    /*  4bit: ABR RDF */
  115         uint8_t         cdf;    /*  3bit: ABR CDF */
  116 };
  117 
  118 /*
  119  * VCC parameters
  120  *
  121  * Keep in sync with ng_atm.h
  122  */
  123 struct atmio_vcc {
  124         uint16_t        flags;          /* VCC flags */
  125         uint16_t        vpi;
  126         uint16_t        vci;
  127         uint16_t        rmtu;           /* maximum receive PDU */
  128         uint16_t        tmtu;           /* maximum transmit PDU */
  129         uint8_t         aal;            /* aal type */
  130         uint8_t         traffic;        /* traffic type */
  131         struct atmio_tparam tparam;     /* traffic parameters */
  132 };
  133 
  134 /* VCC flags */
  135 #define ATMIO_FLAG_LLCSNAP      0x0002  /* same as ATM_PH_LLCSNAP */
  136 #define ATMIO_FLAG_NG           0x0010  /* owned by netgraph */
  137 #define ATMIO_FLAG_HARP         0x0020  /* owned by HARP */
  138 #define ATMIO_FLAG_NORX         0x0100  /* not receiving on this VCC */
  139 #define ATMIO_FLAG_NOTX         0x0200  /* not transmitting on this VCC */
  140 #define ATMIO_FLAG_PVC          0x0400  /* this is a PVC */
  141 #define ATMIO_FLAG_ASYNC        0x0800  /* async open/close */
  142 #define ATMIO_FLAGS     "\020\2LLCSNAP\5NG\6HARP\11NORX\12NOTX\13PVC\14ASYNC"
  143 
  144 #define ATMIO_AAL_0             0       /* pure cells */
  145 #define ATMIO_AAL_34            4       /* AAL3 and 4 */
  146 #define ATMIO_AAL_5             5       /* AAL5 */
  147 #define ATMIO_AAL_RAW           10      /* whatever the card does */
  148 
  149 #define ATMIO_TRAFFIC_UBR       0
  150 #define ATMIO_TRAFFIC_CBR       1
  151 #define ATMIO_TRAFFIC_ABR       2
  152 #define ATMIO_TRAFFIC_VBR       3
  153 
  154 /*
  155  * VCC table
  156  *
  157  * Keep in sync with ng_atm.h
  158  */
  159 struct atmio_vcctable {
  160         uint32_t        count;          /* number of vccs */
  161         struct atmio_vcc vccs[0];       /* array of VCCs */
  162 };
  163 
  164 /*
  165  * Peak cell rates for various physical media. Note, that there are
  166  * different opinions on what the correct values are.
  167  */
  168 #define ATM_RATE_25_6M          59259
  169 #define ATM_RATE_155M           353208
  170 #define ATM_RATE_622M           1412830
  171 #define ATM_RATE_2_4G           5651320
  172 
  173 #ifdef _KERNEL
  174 /*
  175  * Common fields for all ATM interfaces. Each driver's softc must start with
  176  * this structure.
  177  */
  178 struct ifatm {
  179         struct ifnet    *ifp;
  180         struct ifatm_mib mib;           /* exported data */
  181         void            *phy;           /* usually SUNI */
  182         void            *ngpriv;        /* netgraph link */
  183 };
  184 #define IFP2IFATM(ifp)  ((struct ifatm *)(ifp)->if_l2com)
  185 #endif
  186 
  187 /*
  188  * Keep structures in sync with ng_atm.h
  189  *
  190  * These are used by netgraph/harp to call the driver
  191  * NATM uses the atm_pseudoioctl instead.
  192  */
  193 struct atmio_openvcc {
  194         void            *rxhand;        /* handle argument */
  195         struct atmio_vcc param;         /* parameters */
  196 };
  197 
  198 struct atmio_closevcc {
  199         uint16_t        vpi;
  200         uint16_t        vci;
  201 };
  202 
  203 #if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__)
  204 #define RTALLOC1(A,B)           rtalloc1((A),(B))
  205 #elif defined(__FreeBSD__)
  206 #define RTALLOC1(A,B)           rtalloc1((A),(B),0UL)
  207 #endif
  208 
  209 /*
  210  * pseudo header for packet transmission
  211  */
  212 struct atm_pseudohdr {
  213         uint8_t         atm_ph[4];      /* flags+VPI+VCI1(msb)+VCI2(lsb) */
  214 };
  215 
  216 #define ATM_PH_FLAGS(X) ((X)->atm_ph[0])
  217 #define ATM_PH_VPI(X)   ((X)->atm_ph[1])
  218 #define ATM_PH_VCI(X)   ((((X)->atm_ph[2]) << 8) | ((X)->atm_ph[3]))
  219 #define ATM_PH_SETVCI(X,V) { \
  220         (X)->atm_ph[2] = ((V) >> 8) & 0xff; \
  221         (X)->atm_ph[3] = ((V) & 0xff); \
  222 }
  223 
  224 /* use AAL5? (0 == aal0) */
  225 #define ATM_PH_AAL5     0x01
  226 /* use the LLC SNAP encoding (iff aal5) */
  227 #define ATM_PH_LLCSNAP ATMIO_FLAG_LLCSNAP
  228 
  229 #define ATM_PH_DRIVER7  0x40    /* reserve for driver's use */
  230 #define ATM_PH_DRIVER8  0x80    /* reserve for driver's use */
  231 
  232 #define ATMMTU          9180    /* ATM MTU size for IP */
  233                                 /* XXX: could be 9188 with LLC/SNAP according
  234                                         to comer */
  235 
  236 #define SIOCATMGETVCCS  _IOW('a', 125, struct atmio_vcctable)
  237 #define SIOCATMOPENVCC  _IOR('a', 126, struct atmio_openvcc)
  238 #define SIOCATMCLOSEVCC _IOR('a', 127, struct atmio_closevcc)
  239 
  240 #define SIOCATMGVCCS    _IOWR('i', 230, struct ifreq)
  241 
  242 /*
  243  * XXX forget all the garbage in if_llc.h and do it the easy way
  244  */
  245 #define ATMLLC_HDR "\252\252\3\0\0\0"
  246 struct atmllc {
  247         uint8_t         llchdr[6];      /* aa.aa.03.00.00.00 */
  248         uint8_t         type[2];        /* "ethernet" type */
  249 };
  250 
  251 /* ATM_LLC macros: note type code in host byte order */
  252 #define ATM_LLC_TYPE(X) (((X)->type[0] << 8) | ((X)->type[1]))
  253 #define ATM_LLC_SETTYPE(X, V) do {              \
  254         (X)->type[0] = ((V) >> 8) & 0xff;       \
  255         (X)->type[1] = ((V) & 0xff);            \
  256     } while (0)
  257 
  258 /*
  259  * Events that are emitted by the driver. Currently the only consumer
  260  * of this is the netgraph node.
  261  */
  262 #define ATMEV_FLOW_CONTROL      0x0001  /* channel busy state changed */
  263 #define ATMEV_IFSTATE_CHANGED   0x0002  /* up/down or carrier */
  264 #define ATMEV_VCC_CHANGED       0x0003  /* PVC deleted/create */
  265 #define ATMEV_ACR_CHANGED       0x0004  /* ABR ACR has changed */
  266 
  267 struct atmev_flow_control {
  268         uint16_t        vpi;            /* channel that is changed */
  269         uint16_t        vci;
  270         u_int           busy : 1;       /* != 0 -> ATM layer busy */
  271 };
  272 
  273 struct atmev_ifstate_changed {
  274         u_int           running : 1;    /* interface is running now */
  275         u_int           carrier : 1;    /* carrier detected (or not) */
  276 };
  277 
  278 struct atmev_vcc_changed {
  279         uint16_t        vpi;            /* channel that is changed */
  280         uint16_t        vci;
  281         u_int           up : 1;         /* 1 - created, 0 - deleted */
  282 };
  283 
  284 struct atmev_acr_changed {
  285         uint16_t        vpi;            /* channel that is changed */
  286         uint16_t        vci;
  287         uint32_t        acr;            /* new ACR */
  288 };
  289 
  290 #ifdef _KERNEL
  291 void    atm_ifattach(struct ifnet *);
  292 void    atm_ifdetach(struct ifnet *);
  293 void    atm_input(struct ifnet *, struct atm_pseudohdr *,
  294             struct mbuf *, void *);
  295 int     atm_output(struct ifnet *, struct mbuf *, struct sockaddr *, 
  296             struct rtentry *);
  297 struct atmio_vcctable *atm_getvccs(struct atmio_vcc **, u_int, u_int,
  298             struct mtx *, int);
  299 
  300 void    atm_event(struct ifnet *, u_int, void *);
  301 
  302 #define ATMEV_SEND_FLOW_CONTROL(ATMIF, VPI, VCI, BUSY)                  \
  303         do {                                                            \
  304                 struct atmev_flow_control _arg;                         \
  305                 _arg.vpi = (VPI);                                       \
  306                 _arg.vci = (VCI);                                       \
  307                 _arg.busy = (BUSY);                                     \
  308                 atm_event((ATMIF)->ifp, ATMEV_FLOW_CONTROL, &_arg);     \
  309         } while (0)
  310 
  311 #define ATMEV_SEND_VCC_CHANGED(ATMIF, VPI, VCI, UP)                     \
  312         do {                                                            \
  313                 struct atmev_vcc_changed _arg;                          \
  314                 _arg.vpi = (VPI);                                       \
  315                 _arg.vci = (VCI);                                       \
  316                 _arg.up = (UP);                                         \
  317                 atm_event((ATMIF)->ifp, ATMEV_VCC_CHANGED, &_arg);      \
  318         } while (0)
  319 
  320 #define ATMEV_SEND_IFSTATE_CHANGED(ATMIF, CARRIER)                      \
  321         do {                                                            \
  322                 struct atmev_ifstate_changed _arg;                      \
  323                 _arg.running = (((ATMIF)->ifp->if_drv_flags &           \
  324                     IFF_DRV_RUNNING) != 0);                             \
  325                 _arg.carrier = ((CARRIER) != 0);                        \
  326                 atm_event((ATMIF)->ifp, ATMEV_IFSTATE_CHANGED, &_arg); \
  327         } while (0)
  328 
  329 #define ATMEV_SEND_ACR_CHANGED(ATMIF, VPI, VCI, ACR)                    \
  330         do {                                                            \
  331                 struct atmev_acr_changed _arg;                          \
  332                 _arg.vpi = (VPI);                                       \
  333                 _arg.vci = (VCI);                                       \
  334                 _arg.acr= (ACR);                                        \
  335                 atm_event((ATMIF)->ifp, ATMEV_ACR_CHANGED, &_arg);      \
  336         } while (0)
  337 #endif

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