include/sys/llc1.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * llc1 - an LLC Class 1 MUX compatible with SunConnect LLC2 uses DLPI
  24  * interface.
  25  *
  26  * Copyrighted as an unpublished work.
  27  * Copyright 1992-2002 Sun Microsystems, Inc.  All rights reserved.
  28  * Use is subject to license terms.
  29  */
  30
  31 #ifndef _SYS_LLC1_H
  32 #define _SYS_LLC1_H
  33
  34 #pragma ident   "%Z%%M% %I%     %E% SMI"
  35
  36 #ifdef  __cplusplus
  37 extern "C" {
  38 #endif
  39
  40 struct llc_stats {
  41         long    llcs_nobuffer;
  42         long    llcs_multixmt;
  43         long    llcs_multircv;  /* multicast but note broadcast */
  44         long    llcs_brdcstxmt;
  45         long    llcs_brdcstrcv;
  46         long    llcs_blocked;   /* discard due to upstream being flow */
  47                                 /* controlled */
  48         long    llcs_pktxmt;
  49         long    llcs_pktrcv;
  50         long    llcs_bytexmt;
  51         long    llcs_bytercv;
  52         long    llcs_xidxmt;
  53         long    llcs_xidrcv;
  54         long    llcs_testxmt;
  55         long    llcs_testrcv;
  56         long    llcs_ierrors;
  57         long    llcs_oerrors;
  58 };
  59
  60 #define LLCS_NOBUFFER   0
  61 #define LLCS_MULTIXMT   1
  62 #define LLCS_MULTIRCV   2
  63 #define LLCS_BRDCSTXMT  3
  64 #define LLCS_BRDCSTRCV  4
  65 #define LLCS_BLOCKED    5
  66 #define LLCS_PKTXMT     6
  67 #define LLCS_PKTRCV     7
  68 #define LLCS_BYTEXMT    8
  69 #define LLCS_BYTERCV    9
  70 #define LLCS_XIDXMT     10
  71 #define LLCS_XIDRCV     11
  72 #define LLCS_TESTXMT    12
  73 #define LLCS_TESTRCV    13
  74 #define LLCS_IERRORS    14
  75 #define LLCS_OERRORS    15
  76
  77 /* multicast structures */
  78 typedef struct llc1_multicast_addr {
  79         int             llcm_refcnt;    /* number of streams referring to */
  80                                         /* entry */
  81         unsigned char   llcm_addr[ETHERADDRL];
  82 } llc_mcast_t;
  83 #define LLC1_MAX_MULTICAST      16      /* default max multicast table size */
  84
  85 typedef
  86 struct llc_mac_info {
  87         struct llc_mac_info *llcp_next, *llcp_prev;
  88         long            llcp_flags;
  89         long            llcp_maxpkt;
  90         long            llcp_minpkt;
  91         long            llcp_type;
  92         long            llcp_addrlen;   /* usually 6 but could be 2 */
  93         unsigned char   llcp_macaddr[ETHERADDRL];
  94         unsigned char   llcp_broadcast[ETHERADDRL];
  95         queue_t         *llcp_queue;    /* queue to MAC device */
  96         long            llcp_lindex;    /* link index for unlink */
  97         long            llcp_ppa;       /* the PPA number */
  98         long            llcp_sap;       /* when doing auto bind on lower */
  99                                         /* stream */
 100         mblk_t          *llcp_data;     /* temporarily hold data */
 101         queue_t         *llcp_lqtop;    /* queue for ioctls */
 102         mblk_t          *llcp_mb;
 103         long            llcp_nstreams;
 104         llc_mcast_t     *llcp_mcast;    /* per device multicast table */
 105         struct llc_stats llcp_stats;
 106         kstat_t         *llcp_kstatp;
 107         uint_t          llcp_iocid;     /* outstanding ioc_id */
 108 } llc_mac_info_t;
 109
 110 /* flags for mac info (link) status */
 111 #define LLC1_LINKED     0x0001  /* there is a stream linked but not ready */
 112 #define LLC1_AVAILABLE  0x0002  /* linked stream is now ready */
 113 #define LLC1_INFO_WAIT  0x0004  /* waiting on info_ack */
 114 #define LLC1_DEF_PPA    0x0008  /* default (system assigned PPA) */
 115 #define LLC1_RAW_WAIT   0x0010  /* waiting for DLIOCRAW to happen */
 116 #define LLC1_USING_RAW  0x0020  /* lower driver is using DLIOCRAW mode */
 117 #define LLC1_AUTO_XID   0x0040  /* automatically respond to XID */
 118 #define LLC1_AUTO_TEST  0x0080  /* automatically respond to TEST */
 119 #define LLC1_BINDING    0x0100  /* autmatically binding the lower stream */
 120
 121 typedef struct llc1 {
 122         struct llc1     *llc_next, *llc_prev;
 123         mblk_t          *llc_mb;
 124         long            llc_state;
 125         long            llc_style;
 126         long            llc_minor;
 127         long            llc_type;
 128         long            llc_sap;
 129         uchar_t         llc_snap[5];    /* SNAP header */
 130         long            llc_waiting_for;        /* DL request to lower layer */
 131         long            llc_flags;      /* flags used for controlling things */
 132         long            llc_multicnt;   /* number of multicast addresses for */
 133                                         /* stream */
 134         llc_mcast_t     **llc_mcast;    /* multicast table if multicast is */
 135                                         /* enabled */
 136         queue_t         *llc_qptr;
 137         kmutex_t        llc_lock;
 138         struct llc_mac_info *llc_mac_info;
 139         struct llc_stats *llc_stats;
 140 } llc1_t;
 141
 142 /* llc_flag bits */
 143 #define LLC_RAW         0x0001  /* lower stream is in RAW mode */
 144 #define LLC_FAST        0x0002  /* use "fast" path */
 145 #define LLC_PROM        0x0004  /* stream is in physical promiscuous mode */
 146 #define LLC_SNAP        0x0008  /* stream is using SNAP header */
 147 #define LLC_SNAP_OID    0x0010  /* stream is SNAP, OID is defined */
 148
 149
 150 typedef struct llc1device {
 151         long            llc1_status;
 152         krwlock_t       llc1_rwlock;    /* used to serialize read/write locks */
 153         int             llc1_minors;
 154         int             llc1_multisize;
 155         llc_mac_info_t  *llc1_mac_next, *llc1_mac_prev; /* the various mac */
 156                                                         /* layers */
 157         int             llc1_ndevice;   /* number of devices linked */
 158         int             llc1_nextppa;   /* number to use for next PPA default */
 159         llc1_t          *llc1_str_next, *llc1_str_prev; /* open streams */
 160 } llc1dev_t;
 161
 162 #define LLC1_ATTACHED   0x0001  /* board is attached so mutexes are */
 163                                 /* initialized */
 164
 165
 166 /*
 167  * definitions for debug tracing
 168  */
 169 #define LLCTRACE        0x0001  /* basic procedure level tracing */
 170 #define LLCERRS         0x0002  /* trace errors */
 171 #define LLCRECV         0x0004  /* trace receive path */
 172 #define LLCSEND         0x0008  /* trace send path */
 173 #define LLCPROT         0x0010  /* trace DLPI protocol */
 174
 175 /*
 176  * other definitions
 177  */
 178 #define LLCE_OK         -1      /* internal procedure status is OK */
 179 #define LLCE_NOBUFFER   0x1001  /* couldn't allocate a buffer */
 180
 181
 182 /*
 183  * definitions for module_info
 184  */
 185 #define LLC1IDNUM       0x8022
 186 #define LLC1_HIWATER    32000   /* high water mark for flow control */
 187 #define LLC1_LOWATER    4096    /* low water mark for flow control */
 188 #define LLC1_DEFMAX     4096    /* default max packet size */
 189
 190 /* address format for unitdata */
 191
 192 struct llcaddr {
 193         unsigned char   llca_addr[ETHERADDRL];
 194         unsigned char   llca_sap;
 195 };
 196 #define LLCADDR(p, offset) ((struct llcaddr *)(((caddr_t)(p))+(offset)))
 197
 198 struct llcsaddr {
 199         unsigned char   llca_saddr[ETHERADDRL];
 200         unsigned short  llca_ssap;
 201 };
 202 #define LLCSADDR(p, offset) ((struct llcsaddr *)(((caddr_t)(p))+(offset)))
 203
 204 /*
 205  * 802.2 specific declarations
 206  */
 207 struct llchdr {
 208         unsigned char   llc_dsap;
 209         unsigned char   llc_ssap;
 210         unsigned char   llc_ctl;
 211 };
 212 struct llchdr_xid {
 213         unsigned char   llcx_format;
 214         unsigned char   llcx_class;
 215         unsigned char   llcx_window;
 216 };
 217 struct snaphdr {
 218         uchar_t         snap_oid[3];
 219         uchar_t         snap_type[2];
 220 };
 221
 222 #define LLC_UI          0x3
 223 #define LLC_XID         0xAF
 224 #define LLC_TEST        0xE3
 225 #define LLC_P           0x10    /* P bit for use with XID/TEST */
 226 #define LLC_XID_FMTID   0x81    /* XID format identifier */
 227 #define LLC_SERVICES    0x01    /* Services supported */
 228 #define LLC_GLOBAL_SAP  0XFF    /* Global SAP address */
 229 #define LLC_NULL_SAP    0x00
 230 #define LLC_SNAP_SAP    0xAA    /* SNAP SAP */
 231 #define LLC_GROUP_ADDR  0x01    /* indication in DSAP of a group address */
 232 #define LLC_RESPONSE    0x01    /* indication in SSAP of a response */
 233 #define LLC_NOVELL_SAP  -1      /* indicator that Novell 802.3 mode is used */
 234
 235 #define LLC_XID_INFO_SIZE       3       /* length of the INFO field */
 236 #define LLC_XID_CLASS_I         (0x01)  /* Class I */
 237 #define LLC_XID_CLASS_II        (0x03)  /* Class II */
 238 #define LLC_XID_CLASS_III       (0x05)  /* Class III */
 239 #define LLC_XID_CLASS_IV        (0x07)  /* Class IV */
 240
 241 /* Types can be or'd together */
 242 #define LLC_XID_TYPE_1          (0x01)  /* Type 1 */
 243 #define LLC_XID_TYPE_2          (0x02)  /* Type 2 */
 244 #define LLC_XID_TYPE_3          (0x04)  /* Type 3 */
 245
 246 #define LLC1_CSMACD_HDR_SIZE    (2*ETHERADDRL+2)
 247
 248 #define ismulticast(cp) ((*(caddr_t)(cp)) & 0x01)
 249
 250 /*
 251  * special ioctl calls for SunSelect LLC2 conformance
 252  */
 253 #define L_GETPPA        (('L'<<8)|1)
 254 #define L_SETPPA        (('L'<<8)|2)
 255 #define L_GETSTATS      (('L'<<8)|5)
 256 #define L_ZEROSTATS     (('L'<<8)|6)
 257
 258 #define LI_SPPA         0x02    /* type of snioc structure */
 259
 260 struct ll_snioc {
 261         uchar_t         lli_type;
 262         uchar_t         lli_spare[3];
 263         int             lli_ppa;
 264         int             lli_index;
 265 };
 266
 267 /*
 268  * version of insque/remque for use by this driver
 269  */
 270 struct qelem {
 271         struct qelem   *q_forw;
 272         struct qelem   *q_back;
 273         /* rest of structure */
 274 };
 275
 276 #ifdef  __cplusplus
 277 }
 278 #endif
 279
 280 #endif /* _SYS_LLC1_H */