drivers/net/fddi/skfp/h/smc.h

   1 /******************************************************************************
   2  *
   3  *      (C)Copyright 1998,1999 SysKonnect,
   4  *      a business unit of Schneider & Koch & Co. Datensysteme GmbH.
   5  *
   6  *      This program is free software; you can redistribute it and/or modify
   7  *      it under the terms of the GNU General Public License as published by
   8  *      the Free Software Foundation; either version 2 of the License, or
   9  *      (at your option) any later version.
  10  *
  11  *      The information in this file is provided "AS IS" without warranty.
  12  *
  13  ******************************************************************************/
  14
  15 #ifndef _SCMECM_
  16 #define _SCMECM_
  17
  18 #if     defined(PCI) && !defined(OSDEF)
  19 /*
  20  * In the case of the PCI bus the file osdef1st.h must be present
  21  */
  22 #define OSDEF
  23 #endif
  24
  25 #ifdef  PCI
  26 #ifndef SUPERNET_3
  27 #define SUPERNET_3
  28 #endif
  29 #ifndef TAG_MODE
  30 #define TAG_MODE
  31 #endif
  32 #endif
  33
  34 /*
  35  * include all other files in required order
  36  * the following files must have been included before:
  37  *      types.h
  38  *      fddi.h
  39  */
  40 #ifdef  OSDEF
  41 #include "osdef1st.h"
  42 #endif  /* OSDEF */
  43 #ifdef  OEM_CONCEPT
  44 #include "oemdef.h"
  45 #endif  /* OEM_CONCEPT */
  46 #include "smt.h"
  47 #include "cmtdef.h"
  48 #include "fddimib.h"
  49 #include "targethw.h"           /* all target hw dependencies */
  50 #include "targetos.h"           /* all target os dependencies */
  51 #ifdef  ESS
  52 #include "sba.h"
  53 #endif
  54
  55 /*
  56  * Event Queue
  57  *      queue.c
  58  * events are class/value pairs
  59  *      class   is addressee, e.g. RMT, PCM etc.
  60  *      value   is command, e.g. line state change, ring op change etc.
  61  */
  62 struct event_queue {
  63         u_short class ;                 /* event class */
  64         u_short event ;                 /* event value */
  65 } ;
  66
  67 /*
  68  * define event queue as circular buffer
  69  */
  70 #ifdef  CONCENTRATOR
  71 #define MAX_EVENT       128
  72 #else   /* nCONCENTRATOR */
  73 #define MAX_EVENT       64
  74 #endif  /* nCONCENTRATOR */
  75
  76 struct s_queue {
  77
  78         struct event_queue ev_queue[MAX_EVENT];
  79         struct event_queue *ev_put ;
  80         struct event_queue *ev_get ;
  81 } ;
  82
  83 /*
  84  * ECM - Entity Coordination Management
  85  * ecm.c
  86  */
  87 struct s_ecm {
  88         u_char path_test ;              /* ECM path test variable */
  89         u_char sb_flag ;                /* ECM stuck bypass */
  90         u_char DisconnectFlag ;         /* jd 05-Aug-1999 Bug #10419
  91                                          * ECM disconnected */
  92         u_char ecm_line_state ;         /* flag to dispatcher : line states */
  93         u_long trace_prop ;             /* ECM Trace_Prop flag >= 16 bits !! */
  94         /* NUMPHYS note:
  95          * this variable must have enough bits to hold all entiies in
  96          * the station. So NUMPHYS may not be greater than 31.
  97          */
  98         char    ec_pad[2] ;
  99         struct smt_timer ecm_timer ;    /* timer */
 100 } ;
 101
 102
 103 /*
 104  * RMT - Ring Management
 105  * rmt.c
 106  */
 107 struct s_rmt {
 108         u_char dup_addr_test ;          /* state of dupl. addr. test */
 109         u_char da_flag ;                /* flag : duplicate address det. */
 110         u_char loop_avail ;             /* flag : MAC available for loopback */
 111         u_char sm_ma_avail ;            /* flag : MAC available for SMT */
 112         u_char no_flag ;                /* flag : ring not operational */
 113         u_char bn_flag ;                /* flag : MAC reached beacon state */
 114         u_char jm_flag ;                /* flag : jamming in NON_OP_DUP */
 115         u_char rm_join ;                /* CFM flag RM_Join */
 116         u_char rm_loop ;                /* CFM flag RM_Loop */
 117
 118         long fast_rm_join ;             /* bit mask of active ports */
 119         /*
 120          * timer and flags
 121          */
 122         struct smt_timer rmt_timer0 ;   /* timer 0 */
 123         struct smt_timer rmt_timer1 ;   /* timer 1 */
 124         struct smt_timer rmt_timer2 ;   /* timer 2 */
 125         u_char timer0_exp ;             /* flag : timer 0 expired */
 126         u_char timer1_exp ;             /* flag : timer 1 expired */
 127         u_char timer2_exp ;             /* flag : timer 2 expired */
 128
 129         u_char rm_pad1[1] ;
 130 } ;
 131
 132 /*
 133  * CFM - Configuration Management
 134  * cfm.c
 135  * used for SAS and DAS
 136  */
 137 struct s_cfm {
 138         u_char cf_state;                /* CFM state machine current state */
 139         u_char cf_pad[3] ;
 140 } ;
 141
 142 /*
 143  * CEM - Configuration Element Management
 144  * cem.c
 145  * used for Concentrator
 146  */
 147 #ifdef  CONCENTRATOR
 148 struct s_cem {
 149         int     ce_state ;      /* CEM state */
 150         int     ce_port ;       /* PA PB PM PM+1 .. */
 151         int     ce_type ;       /* TA TB TS TM */
 152 } ;
 153
 154 /*
 155  * linked list of CCEs in current token path
 156  */
 157 struct s_c_ring {
 158         struct s_c_ring *c_next ;
 159         char            c_entity ;
 160 } ;
 161
 162 struct mib_path_config {
 163         u_long  fddimibPATHConfigSMTIndex;
 164         u_long  fddimibPATHConfigPATHIndex;
 165         u_long  fddimibPATHConfigTokenOrder;
 166         u_long  fddimibPATHConfigResourceType;
 167 #define SNMP_RES_TYPE_MAC       2       /* Resource is a MAC */
 168 #define SNMP_RES_TYPE_PORT      4       /* Resource is a PORT */
 169         u_long  fddimibPATHConfigResourceIndex;
 170         u_long  fddimibPATHConfigCurrentPath;
 171 #define SNMP_PATH_ISOLATED      1       /* Current path is isolated */
 172 #define SNMP_PATH_LOCAL         2       /* Current path is local */
 173 #define SNMP_PATH_SECONDARY     3       /* Current path is secondary */
 174 #define SNMP_PATH_PRIMARY       4       /* Current path is primary */
 175 #define SNMP_PATH_CONCATENATED  5       /* Current path is concatenated */
 176 #define SNMP_PATH_THRU          6       /* Current path is thru */
 177 };
 178
 179
 180 #endif
 181
 182 /*
 183  * PCM connect states
 184  */
 185 #define PCM_DISABLED    0
 186 #define PCM_CONNECTING  1
 187 #define PCM_STANDBY     2
 188 #define PCM_ACTIVE      3
 189
 190 struct s_pcm {
 191         u_char  pcm_pad[3] ;
 192 } ;
 193
 194 /*
 195  * PHY struct
 196  * one per physical port
 197  */
 198 struct s_phy {
 199         /* Inter Module Globals */
 200         struct fddi_mib_p       *mib ;
 201
 202         u_char np ;             /* index 0 .. NUMPHYS */
 203         u_char cf_join ;
 204         u_char cf_loop ;
 205         u_char wc_flag ;        /* withhold connection flag */
 206         u_char pc_mode ;        /* Holds the negotiated mode of the PCM */
 207         u_char pc_lem_fail ;    /* flag : LCT failed */
 208         u_char lc_test ;
 209         u_char scrub ;          /* CFM flag Scrub -> PCM */
 210         char phy_name ;
 211         u_char pmd_type[2] ;    /* SK connector/transceiver type codes */
 212 #define PMD_SK_CONN     0       /* pmd_type[PMD_SK_CONN] = Connector */
 213 #define PMD_SK_PMD      1       /* pmd_type[PMD_SK_PMD] = Xver */
 214         u_char pmd_scramble ;   /* scrambler on/off */
 215
 216         /* inner Module Globals */
 217         u_char curr_ls ;        /* current line state */
 218         u_char ls_flag ;
 219         u_char rc_flag ;
 220         u_char tc_flag ;
 221         u_char td_flag ;
 222         u_char bitn ;
 223         u_char tr_flag ;        /* trace recvd while in active */
 224         u_char twisted ;        /* flag to indicate an A-A or B-B connection */
 225         u_char t_val[NUMBITS] ; /* transmit bits for signaling */
 226         u_char r_val[NUMBITS] ; /* receive bits for signaling */
 227         u_long t_next[NUMBITS] ;
 228         struct smt_timer pcm_timer0 ;
 229         struct smt_timer pcm_timer1 ;
 230         struct smt_timer pcm_timer2 ;
 231         u_char timer0_exp ;
 232         u_char timer1_exp ;
 233         u_char timer2_exp ;
 234         u_char pcm_pad1[1] ;
 235         int     cem_pst ;       /* CEM privae state; used for dual homing */
 236         struct lem_counter lem ;
 237 #ifdef  AMDPLC
 238         struct s_plc    plc ;
 239 #endif
 240 } ;
 241
 242 /*
 243  * timer package
 244  * smttimer.c
 245  */
 246 struct s_timer {
 247         struct smt_timer        *st_queue ;
 248         struct smt_timer        st_fast ;
 249 } ;
 250
 251 /*
 252  * SRF types and data
 253  */
 254 #define SMT_EVENT_BASE                  1
 255 #define SMT_EVENT_MAC_PATH_CHANGE       (SMT_EVENT_BASE+0)
 256 #define SMT_EVENT_MAC_NEIGHBOR_CHANGE   (SMT_EVENT_BASE+1)
 257 #define SMT_EVENT_PORT_PATH_CHANGE      (SMT_EVENT_BASE+2)
 258 #define SMT_EVENT_PORT_CONNECTION       (SMT_EVENT_BASE+3)
 259
 260 #define SMT_IS_CONDITION(x)                     ((x)>=SMT_COND_BASE)
 261
 262 #define SMT_COND_BASE           (SMT_EVENT_PORT_CONNECTION+1)
 263 #define SMT_COND_SMT_PEER_WRAP          (SMT_COND_BASE+0)
 264 #define SMT_COND_SMT_HOLD               (SMT_COND_BASE+1)
 265 #define SMT_COND_MAC_FRAME_ERROR        (SMT_COND_BASE+2)
 266 #define SMT_COND_MAC_DUP_ADDR           (SMT_COND_BASE+3)
 267 #define SMT_COND_MAC_NOT_COPIED         (SMT_COND_BASE+4)
 268 #define SMT_COND_PORT_EB_ERROR          (SMT_COND_BASE+5)
 269 #define SMT_COND_PORT_LER               (SMT_COND_BASE+6)
 270
 271 #define SR0_WAIT        0
 272 #define SR1_HOLDOFF     1
 273 #define SR2_DISABLED    2
 274
 275 struct s_srf {
 276         u_long  SRThreshold ;                   /* threshold value */
 277         u_char  RT_Flag ;                       /* report transmitted flag */
 278         u_char  sr_state ;                      /* state-machine */
 279         u_char  any_report ;                    /* any report required */
 280         u_long  TSR ;                           /* timer */
 281         u_short ring_status ;                   /* IBM ring status */
 282 } ;
 283
 284 /*
 285  * IBM token ring status
 286  */
 287 #define RS_RES15        (1<<15)                 /* reserved */
 288 #define RS_HARDERROR    (1<<14)                 /* ring down */
 289 #define RS_SOFTERROR    (1<<13)                 /* sent SRF */
 290 #define RS_BEACON       (1<<12)                 /* transmitted beacon */
 291 #define RS_PATHTEST     (1<<11)                 /* path test failed */
 292 #define RS_SELFTEST     (1<<10)                 /* selftest required */
 293 #define RS_RES9         (1<< 9)                 /* reserved */
 294 #define RS_DISCONNECT   (1<< 8)                 /* remote disconnect */
 295 #define RS_RES7         (1<< 7)                 /* reserved */
 296 #define RS_DUPADDR      (1<< 6)                 /* duplicate address */
 297 #define RS_NORINGOP     (1<< 5)                 /* no ring op */
 298 #define RS_VERSION      (1<< 4)                 /* SMT version mismatch */
 299 #define RS_STUCKBYPASSS (1<< 3)                 /* stuck bypass */
 300 #define RS_EVENT        (1<< 2)                 /* FDDI event occurred */
 301 #define RS_RINGOPCHANGE (1<< 1)                 /* ring op changed */
 302 #define RS_RES0         (1<< 0)                 /* reserved */
 303
 304 #define RS_SET(smc,bit) \
 305         ring_status_indication(smc,smc->srf.ring_status |= bit)
 306 #define RS_CLEAR(smc,bit)       \
 307         ring_status_indication(smc,smc->srf.ring_status &= ~bit)
 308
 309 #define RS_CLEAR_EVENT  (0xffff & ~(RS_NORINGOP))
 310
 311 /* Define the AIX-event-Notification as null function if it isn't defined */
 312 /* in the targetos.h file */
 313 #ifndef AIX_EVENT
 314 #define AIX_EVENT(smc,opt0,opt1,opt2,opt3)      /* nothing */
 315 #endif
 316
 317 struct s_srf_evc {
 318         u_char  evc_code ;                      /* event code type */
 319         u_char  evc_index ;                     /* index for mult. instances */
 320         u_char  evc_rep_required ;              /* report required */
 321         u_short evc_para ;                      /* SMT Para Number */
 322         u_char  *evc_cond_state ;               /* condition state */
 323         u_char  *evc_multiple ;                 /* multiple occurrence */
 324 } ;
 325
 326 /*
 327  * Values used by frame based services
 328  * smt.c
 329  */
 330 #define SMT_MAX_TEST            5
 331 #define SMT_TID_NIF             0               /* pending NIF request */
 332 #define SMT_TID_NIF_TEST        1               /* pending NIF test */
 333 #define SMT_TID_ECF_UNA         2               /* pending ECF UNA test */
 334 #define SMT_TID_ECF_DNA         3               /* pending ECF DNA test */
 335 #define SMT_TID_ECF             4               /* pending ECF test */
 336
 337 struct smt_values {
 338         u_long          smt_tvu ;               /* timer valid una */
 339         u_long          smt_tvd ;               /* timer valid dna */
 340         u_long          smt_tid ;               /* transaction id */
 341         u_long          pend[SMT_MAX_TEST] ;    /* TID of requests */
 342         u_long          uniq_time ;             /* unique time stamp */
 343         u_short         uniq_ticks  ;           /* unique time stamp */
 344         u_short         please_reconnect ;      /* flag : reconnect */
 345         u_long          smt_last_lem ;
 346         u_long          smt_last_notify ;
 347         struct smt_timer        smt_timer ;     /* SMT NIF timer */
 348         u_long          last_tok_time[NUMMACS]; /* token cnt emulation */
 349 } ;
 350
 351 /*
 352  * SMT/CMT configurable parameters
 353  */
 354 #define SMT_DAS 0                       /* dual attach */
 355 #define SMT_SAS 1                       /* single attach */
 356 #define SMT_NAC 2                       /* null attach concentrator */
 357
 358 struct smt_config {
 359         u_char  attach_s ;              /* CFM attach to secondary path */
 360         u_char  sas ;                   /* SMT_DAS/SAS/NAC */
 361         u_char  build_ring_map ;        /* build ringmap if TRUE */
 362         u_char  numphys ;               /* number of active phys */
 363         u_char  sc_pad[1] ;
 364
 365         u_long  pcm_tb_min ;            /* PCM : TB_Min timer value */
 366         u_long  pcm_tb_max ;            /* PCM : TB_Max timer value */
 367         u_long  pcm_c_min ;             /* PCM : C_Min timer value */
 368         u_long  pcm_t_out ;             /* PCM : T_Out timer value */
 369         u_long  pcm_tl_min ;            /* PCM : TL_min timer value */
 370         u_long  pcm_lc_short ;          /* PCM : LC_Short timer value */
 371         u_long  pcm_lc_medium ;         /* PCM : LC_Medium timer value */
 372         u_long  pcm_lc_long ;           /* PCM : LC_Long timer value */
 373         u_long  pcm_lc_extended ;       /* PCM : LC_Extended timer value */
 374         u_long  pcm_t_next_9 ;          /* PCM : T_Next[9] timer value */
 375         u_long  pcm_ns_max ;            /* PCM : NS_Max timer value */
 376
 377         u_long  ecm_i_max ;             /* ECM : I_Max timer value */
 378         u_long  ecm_in_max ;            /* ECM : IN_Max timer value */
 379         u_long  ecm_td_min ;            /* ECM : TD_Min timer */
 380         u_long  ecm_test_done ;         /* ECM : path test done timer */
 381         u_long  ecm_check_poll ;        /* ECM : check bypass poller */
 382
 383         u_long  rmt_t_non_op ;          /* RMT : T_Non_OP timer value */
 384         u_long  rmt_t_stuck ;           /* RMT : T_Stuck timer value */
 385         u_long  rmt_t_direct ;          /* RMT : T_Direct timer value */
 386         u_long  rmt_t_jam ;             /* RMT : T_Jam timer value */
 387         u_long  rmt_t_announce ;        /* RMT : T_Announce timer value */
 388         u_long  rmt_t_poll ;            /* RMT : claim/beacon poller */
 389         u_long  rmt_dup_mac_behavior ;  /* Flag for the beavior of SMT if
 390                                          * a Duplicate MAC Address was detected.
 391                                          * FALSE: SMT will leave finally the ring
 392                                          * TRUE:  SMT will reinstert into the ring
 393                                          */
 394         u_long  mac_d_max ;             /* MAC : D_Max timer value */
 395
 396         u_long lct_short ;              /* LCT : error threshold */
 397         u_long lct_medium ;             /* LCT : error threshold */
 398         u_long lct_long ;               /* LCT : error threshold */
 399         u_long lct_extended ;           /* LCT : error threshold */
 400 } ;
 401
 402 #ifdef  DEBUG
 403 /*
 404  * Debugging struct sometimes used in smc
 405  */
 406 struct  smt_debug {
 407         int     d_smtf ;
 408         int     d_smt ;
 409         int     d_ecm ;
 410         int     d_rmt ;
 411         int     d_cfm ;
 412         int     d_pcm ;
 413         int     d_plc ;
 414 #ifdef  ESS
 415         int     d_ess ;
 416 #endif
 417 #ifdef  SBA
 418         int     d_sba ;
 419 #endif
 420         struct  os_debug        d_os;   /* Include specific OS DEBUG struct */
 421 } ;
 422
 423 #ifndef DEBUG_BRD
 424 /* all boards shall be debugged with one debug struct */
 425 extern  struct  smt_debug       debug;  /* Declaration of debug struct */
 426 #endif  /* DEBUG_BRD */
 427
 428 #endif  /* DEBUG */
 429
 430 /*
 431  * the SMT Context Struct SMC
 432  * this struct contains ALL global variables of SMT
 433  */
 434 struct s_smc {
 435         struct s_smt_os os ;            /* os specific */
 436         struct s_smt_hw hw ;            /* hardware */
 437
 438 /*
 439  * NOTE: os and hw MUST BE the first two structs
 440  * anything beyond hw WILL BE SET TO ZERO in smt_set_defaults()
 441  */
 442         struct smt_config s ;           /* smt constants */
 443         struct smt_values sm ;          /* smt variables */
 444         struct s_ecm    e ;             /* ecm */
 445         struct s_rmt    r ;             /* rmt */
 446         struct s_cfm    cf ;            /* cfm/cem */
 447 #ifdef  CONCENTRATOR
 448         struct s_cem    ce[NUMPHYS] ;   /* cem */
 449         struct s_c_ring cr[NUMPHYS+NUMMACS] ;
 450 #endif
 451         struct s_pcm    p ;             /* pcm */
 452         struct s_phy    y[NUMPHYS] ;    /* phy */
 453         struct s_queue  q ;             /* queue */
 454         struct s_timer  t ;             /* timer */
 455         struct s_srf srf ;              /* SRF */
 456         struct s_srf_evc evcs[6+NUMPHYS*4] ;
 457         struct fddi_mib mib ;           /* __THE_MIB__ */
 458 #ifdef  SBA
 459         struct s_sba    sba ;           /* SBA variables */
 460 #endif
 461 #ifdef  ESS
 462         struct s_ess    ess ;           /* Ess variables */
 463 #endif
 464 #if     defined(DEBUG) && defined(DEBUG_BRD)
 465         /* If you want all single board to be debugged separately */
 466         struct smt_debug        debug;  /* Declaration of debug struct */
 467 #endif  /* DEBUG_BRD && DEBUG */
 468 } ;
 469
 470 extern const struct fddi_addr fddi_broadcast;
 471
 472 extern void all_selection_criteria(struct s_smc *smc);
 473 extern void card_stop(struct s_smc *smc);
 474 extern void init_board(struct s_smc *smc, u_char *mac_addr);
 475 extern int init_fplus(struct s_smc *smc);
 476 extern void init_plc(struct s_smc *smc);
 477 extern int init_smt(struct s_smc *smc, u_char * mac_addr);
 478 extern void mac1_irq(struct s_smc *smc, u_short stu, u_short stl);
 479 extern void mac2_irq(struct s_smc *smc, u_short code_s2u, u_short code_s2l);
 480 extern void mac3_irq(struct s_smc *smc, u_short code_s3u, u_short code_s3l);
 481 extern int pcm_status_twisted(struct s_smc *smc);
 482 extern void plc1_irq(struct s_smc *smc);
 483 extern void plc2_irq(struct s_smc *smc);
 484 extern void read_address(struct s_smc *smc, u_char * mac_addr);
 485 extern void timer_irq(struct s_smc *smc);
 486
 487 #endif  /* _SCMECM_ */
 488