release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/net/skfp/smtdef.c

   1 /******************************************************************************
   2  *
   3  *      (C)Copyright 1998,1999 SysKonnect,
   4  *      a business unit of Schneider & Koch & Co. Datensysteme GmbH.
   5  *
   6  *      See the file "skfddi.c" for further information.
   7  *
   8  *      This program is free software; you can redistribute it and/or modify
   9  *      it under the terms of the GNU General Public License as published by
  10  *      the Free Software Foundation; either version 2 of the License, or
  11  *      (at your option) any later version.
  12  *
  13  *      The information in this file is provided "AS IS" without warranty.
  14  *
  15  ******************************************************************************/
  16
  17 /*
  18         SMT/CMT defaults
  19 */
  20
  21 #include "h/types.h"
  22 #include "h/fddi.h"
  23 #include "h/smc.h"
  24
  25 #ifndef OEM_USER_DATA
  26 #define OEM_USER_DATA   "SK-NET FDDI V2.0 Userdata"
  27 #endif
  28
  29 #ifndef lint
  30 static const char ID_sccs[] = "@(#)smtdef.c     2.53 99/08/11 (C) SK " ;
  31 #endif
  32
  33 /*
  34  * defaults
  35  */
  36 #define TTMS(x) ((u_long)(x)*1000L)
  37 #define TTS(x)  ((u_long)(x)*1000000L)
  38 #define TTUS(x) ((u_long)(x))
  39
  40 #define DEFAULT_TB_MIN          TTMS(5)
  41 #define DEFAULT_TB_MAX          TTMS(50)
  42 #define DEFAULT_C_MIN           TTUS(1600)
  43 #define DEFAULT_T_OUT           TTMS(100+5)
  44 #define DEFAULT_TL_MIN          TTUS(30)
  45 #define DEFAULT_LC_SHORT        TTMS(50+5)
  46 #define DEFAULT_LC_MEDIUM       TTMS(500+20)
  47 #define DEFAULT_LC_LONG         TTS(5)+TTMS(50)
  48 #define DEFAULT_LC_EXTENDED     TTS(50)+TTMS(50)
  49 #define DEFAULT_T_NEXT_9        TTMS(200+10)
  50 #define DEFAULT_NS_MAX          TTUS(1310)
  51 #define DEFAULT_I_MAX           TTMS(25)
  52 #define DEFAULT_IN_MAX          TTMS(40)
  53 #define DEFAULT_TD_MIN          TTMS(5)
  54 #define DEFAULT_T_NON_OP        TTS(1)
  55 #define DEFAULT_T_STUCK         TTS(8)
  56 #define DEFAULT_T_DIRECT        TTMS(370)
  57 #define DEFAULT_T_JAM           TTMS(370)
  58 #define DEFAULT_T_ANNOUNCE      TTMS(2500)
  59 #define DEFAULT_D_MAX           TTUS(1617)
  60 #define DEFAULT_LEM_ALARM       (8)
  61 #define DEFAULT_LEM_CUTOFF      (7)
  62 #define DEFAULT_TEST_DONE       TTS(1)
  63 #define DEFAULT_CHECK_POLL      TTS(1)
  64 #define DEFAULT_POLL            TTMS(50)
  65
  66 /*
  67  * LCT errors threshold
  68  */
  69 #define DEFAULT_LCT_SHORT       1
  70 #define DEFAULT_LCT_MEDIUM      3
  71 #define DEFAULT_LCT_LONG        5
  72 #define DEFAULT_LCT_EXTEND      50
  73
  74 /* Forward declarations */
  75 void smt_reset_defaults(struct s_smc *smc, int level);
  76 static void smt_init_mib(struct s_smc *smc, int level);
  77 static int set_min_max(int maxflag, u_long mib, u_long limit, u_long *oper);
  78
  79 #define MS2BCLK(x)      ((x)*12500L)
  80 #define US2BCLK(x)      ((x)*1250L)
  81
  82 void smt_reset_defaults(struct s_smc *smc, int level)
  83 {
  84         struct smt_config       *smt ;
  85         int                     i ;
  86         u_long                  smt_boot_time;
  87
  88
  89         smt_init_mib(smc,level) ;
  90
  91         smc->os.smc_version = SMC_VERSION ;
  92         smt_boot_time = smt_get_time();
  93         for( i = 0; i < NUMMACS; i++ )
  94                 smc->sm.last_tok_time[i] = smt_boot_time ;
  95         smt = &smc->s ;
  96         smt->attach_s = 0 ;
  97         smt->build_ring_map = 1 ;
  98         smt->sas = SMT_DAS ;
  99         smt->numphys = NUMPHYS ;
 100         smt->pcm_tb_min = DEFAULT_TB_MIN ;
 101         smt->pcm_tb_max = DEFAULT_TB_MAX ;
 102         smt->pcm_c_min = DEFAULT_C_MIN ;
 103         smt->pcm_t_out = DEFAULT_T_OUT ;
 104         smt->pcm_tl_min = DEFAULT_TL_MIN ;
 105         smt->pcm_lc_short = DEFAULT_LC_SHORT ;
 106         smt->pcm_lc_medium = DEFAULT_LC_MEDIUM ;
 107         smt->pcm_lc_long = DEFAULT_LC_LONG ;
 108         smt->pcm_lc_extended = DEFAULT_LC_EXTENDED ;
 109         smt->pcm_t_next_9 = DEFAULT_T_NEXT_9 ;
 110         smt->pcm_ns_max = DEFAULT_NS_MAX ;
 111         smt->ecm_i_max = DEFAULT_I_MAX ;
 112         smt->ecm_in_max = DEFAULT_IN_MAX ;
 113         smt->ecm_td_min = DEFAULT_TD_MIN ;
 114         smt->ecm_test_done = DEFAULT_TEST_DONE ;
 115         smt->ecm_check_poll = DEFAULT_CHECK_POLL ;
 116         smt->rmt_t_non_op = DEFAULT_T_NON_OP ;
 117         smt->rmt_t_stuck = DEFAULT_T_STUCK ;
 118         smt->rmt_t_direct = DEFAULT_T_DIRECT ;
 119         smt->rmt_t_jam = DEFAULT_T_JAM ;
 120         smt->rmt_t_announce = DEFAULT_T_ANNOUNCE ;
 121         smt->rmt_t_poll = DEFAULT_POLL ;
 122         smt->rmt_dup_mac_behavior = FALSE ;  /* See Struct smt_config */
 123         smt->mac_d_max = DEFAULT_D_MAX ;
 124
 125         smt->lct_short = DEFAULT_LCT_SHORT ;
 126         smt->lct_medium = DEFAULT_LCT_MEDIUM ;
 127         smt->lct_long = DEFAULT_LCT_LONG ;
 128         smt->lct_extended = DEFAULT_LCT_EXTEND ;
 129
 130 #ifndef SLIM_SMT
 131 #ifdef  ESS
 132         if (level == 0) {
 133                 smc->ess.sync_bw_available = FALSE ;
 134                 smc->mib.fddiESSPayload = 0 ;
 135                 smc->mib.fddiESSOverhead = 0 ;
 136                 smc->mib.fddiESSMaxTNeg = (u_long)(- MS2BCLK(25)) ;
 137                 smc->mib.fddiESSMinSegmentSize = 1 ;
 138                 smc->mib.fddiESSCategory = SB_STATIC ;
 139                 smc->mib.fddiESSSynchTxMode = FALSE ;
 140                 smc->ess.raf_act_timer_poll = FALSE ;
 141                 smc->ess.timer_count = 7 ;      /* first RAF alc req after 3s */
 142         }
 143         smc->ess.local_sba_active = FALSE ;
 144         smc->ess.sba_reply_pend = NULL ;
 145 #endif
 146 #ifdef  SBA
 147         smt_init_sba(smc,level) ;
 148 #endif
 149 #endif  /* no SLIM_SMT */
 150 #ifdef  TAG_MODE
 151         if (level == 0) {
 152                 smc->hw.pci_fix_value = 0 ;
 153         }
 154 #endif
 155 }
 156
 157 /*
 158  * manufacturer data
 159  */
 160 static const char man_data[32] =
 161 /*       01234567890123456789012345678901       */
 162         "xxxSK-NET FDDI SMT 7.3 - V2.8.8" ;
 163
 164 static void smt_init_mib(struct s_smc *smc, int level)
 165 {
 166         struct fddi_mib         *mib ;
 167         struct fddi_mib_p       *pm ;
 168         int                     port ;
 169         int                     path ;
 170
 171         mib = &smc->mib ;
 172         if (level == 0) {
 173                 /*
 174                  * set EVERYTHING to ZERO
 175                  * EXCEPT hw and os
 176                  */
 177                 memset(((char *)smc)+
 178                         sizeof(struct s_smt_os)+sizeof(struct s_smt_hw), 0,
 179                         sizeof(struct s_smc) -
 180                         sizeof(struct s_smt_os) - sizeof(struct s_smt_hw)) ;
 181         }
 182         else {
 183                 mib->fddiSMTRemoteDisconnectFlag = 0 ;
 184                 mib->fddiSMTPeerWrapFlag = 0 ;
 185         }
 186
 187         mib->fddiSMTOpVersionId = 2 ;
 188         mib->fddiSMTHiVersionId = 2 ;
 189         mib->fddiSMTLoVersionId = 2 ;
 190         memcpy((char *) mib->fddiSMTManufacturerData,man_data,32) ;
 191         if (level == 0) {
 192                 strcpy(mib->fddiSMTUserData,OEM_USER_DATA) ;
 193         }
 194         mib->fddiSMTMIBVersionId = 1 ;
 195         mib->fddiSMTMac_Ct = NUMMACS ;
 196         mib->fddiSMTConnectionPolicy = POLICY_MM | POLICY_AA | POLICY_BB ;
 197
 198         /*
 199          * fddiSMTNonMaster_Ct and fddiSMTMaster_Ct are set in smt_fixup_mib
 200          * s.sas is not set yet (is set in init driver)
 201          */
 202         mib->fddiSMTAvailablePaths = MIB_PATH_P | MIB_PATH_S ;
 203
 204         mib->fddiSMTConfigCapabilities = 0 ;    /* no hold,no wrap_ab*/
 205         mib->fddiSMTTT_Notify = 10 ;
 206         mib->fddiSMTStatRptPolicy = TRUE ;
 207         mib->fddiSMTTrace_MaxExpiration = SEC2MIB(7) ;
 208         mib->fddiSMTMACIndexes = INDEX_MAC ;
 209         mib->fddiSMTStationStatus = MIB_SMT_STASTA_SEPA ;       /* separated */
 210
 211         mib->m[MAC0].fddiMACIndex = INDEX_MAC ;
 212         mib->m[MAC0].fddiMACFrameStatusFunctions = FSC_TYPE0 ;
 213         mib->m[MAC0].fddiMACRequestedPaths =
 214                 MIB_P_PATH_LOCAL |
 215                 MIB_P_PATH_SEC_ALTER |
 216                 MIB_P_PATH_PRIM_ALTER ;
 217         mib->m[MAC0].fddiMACAvailablePaths = MIB_PATH_P ;
 218         mib->m[MAC0].fddiMACCurrentPath = MIB_PATH_PRIMARY ;
 219         mib->m[MAC0].fddiMACT_MaxCapabilitiy = (u_long)(- MS2BCLK(165)) ;
 220         mib->m[MAC0].fddiMACTVXCapabilitiy = (u_long)(- US2BCLK(52)) ;
 221         if (level == 0) {
 222                 mib->m[MAC0].fddiMACTvxValue = (u_long)(- US2BCLK(27)) ;
 223                 mib->m[MAC0].fddiMACTvxValueMIB = (u_long)(- US2BCLK(27)) ;
 224                 mib->m[MAC0].fddiMACT_Req = (u_long)(- MS2BCLK(165)) ;
 225                 mib->m[MAC0].fddiMACT_ReqMIB = (u_long)(- MS2BCLK(165)) ;
 226                 mib->m[MAC0].fddiMACT_Max = (u_long)(- MS2BCLK(165)) ;
 227                 mib->m[MAC0].fddiMACT_MaxMIB = (u_long)(- MS2BCLK(165)) ;
 228                 mib->m[MAC0].fddiMACT_Min = (u_long)(- MS2BCLK(4)) ;
 229         }
 230         mib->m[MAC0].fddiMACHardwarePresent = TRUE ;
 231         mib->m[MAC0].fddiMACMA_UnitdataEnable = TRUE ;
 232         mib->m[MAC0].fddiMACFrameErrorThreshold = 1 ;
 233         mib->m[MAC0].fddiMACNotCopiedThreshold = 1 ;
 234         /*
 235          * Path attributes
 236          */
 237         for (path = 0 ; path < NUMPATHS ; path++) {
 238                 mib->a[path].fddiPATHIndex = INDEX_PATH + path ;
 239                 if (level == 0) {
 240                         mib->a[path].fddiPATHTVXLowerBound =
 241                                 (u_long)(- US2BCLK(27)) ;
 242                         mib->a[path].fddiPATHT_MaxLowerBound =
 243                                 (u_long)(- MS2BCLK(165)) ;
 244                         mib->a[path].fddiPATHMaxT_Req =
 245                                 (u_long)(- MS2BCLK(165)) ;
 246                 }
 247         }
 248
 249
 250         /*
 251          * Port attributes
 252          */
 253         pm = mib->p ;
 254         for (port = 0 ; port <  NUMPHYS ; port++) {
 255                 /*
 256                  * set MIB pointer in phy
 257                  */
 258                 /* Attention: don't initialize mib pointer here! */
 259                 /*  It must be initialized during phase 2 */
 260                 smc->y[port].mib = NULL;
 261                 mib->fddiSMTPORTIndexes[port] = port+INDEX_PORT ;
 262
 263                 pm->fddiPORTIndex = port+INDEX_PORT ;
 264                 pm->fddiPORTHardwarePresent = TRUE ;
 265                 if (level == 0) {
 266                         pm->fddiPORTLer_Alarm = DEFAULT_LEM_ALARM ;
 267                         pm->fddiPORTLer_Cutoff = DEFAULT_LEM_CUTOFF ;
 268                 }
 269                 /*
 270                  * fddiPORTRequestedPaths are set in pcmplc.c
 271                  * we don't know the port type yet !
 272                  */
 273                 pm->fddiPORTRequestedPaths[1] = 0 ;
 274                 pm->fddiPORTRequestedPaths[2] = 0 ;
 275                 pm->fddiPORTRequestedPaths[3] = 0 ;
 276                 pm->fddiPORTAvailablePaths = MIB_PATH_P ;
 277                 pm->fddiPORTPMDClass = MIB_PMDCLASS_MULTI ;
 278                 pm++ ;
 279         }
 280
 281         (void) smt_set_mac_opvalues(smc) ;
 282 }
 283
 284 int smt_set_mac_opvalues(struct s_smc *smc)
 285 {
 286         int     st ;
 287         int     st2 ;
 288
 289         st = set_min_max(1,smc->mib.m[MAC0].fddiMACTvxValueMIB,
 290                 smc->mib.a[PATH0].fddiPATHTVXLowerBound,
 291                 &smc->mib.m[MAC0].fddiMACTvxValue) ;
 292         st |= set_min_max(0,smc->mib.m[MAC0].fddiMACT_MaxMIB,
 293                 smc->mib.a[PATH0].fddiPATHT_MaxLowerBound,
 294                 &smc->mib.m[MAC0].fddiMACT_Max) ;
 295         st |= (st2 = set_min_max(0,smc->mib.m[MAC0].fddiMACT_ReqMIB,
 296                 smc->mib.a[PATH0].fddiPATHMaxT_Req,
 297                 &smc->mib.m[MAC0].fddiMACT_Req)) ;
 298         if (st2) {
 299                 /* Treq attribute changed remotely. So send an AIX_EVENT to the
 300                  * user
 301                  */
 302                 AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
 303                         FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_T_REQ,
 304                         smt_get_event_word(smc));
 305         }
 306         return(st) ;
 307 }
 308
 309 void smt_fixup_mib(struct s_smc *smc)
 310 {
 311 #ifdef  CONCENTRATOR
 312         switch (smc->s.sas) {
 313         case SMT_SAS :
 314                 smc->mib.fddiSMTNonMaster_Ct = 1 ;
 315                 break ;
 316         case SMT_DAS :
 317                 smc->mib.fddiSMTNonMaster_Ct = 2 ;
 318                 break ;
 319         case SMT_NAC :
 320                 smc->mib.fddiSMTNonMaster_Ct = 0 ;
 321                 break ;
 322         }
 323         smc->mib.fddiSMTMaster_Ct = NUMPHYS - smc->mib.fddiSMTNonMaster_Ct ;
 324 #else
 325         switch (smc->s.sas) {
 326         case SMT_SAS :
 327                 smc->mib.fddiSMTNonMaster_Ct = 1 ;
 328                 break ;
 329         case SMT_DAS :
 330                 smc->mib.fddiSMTNonMaster_Ct = 2 ;
 331                 break ;
 332         }
 333         smc->mib.fddiSMTMaster_Ct = 0 ;
 334 #endif
 335 }
 336
 337 /*
 338  * determine new setting for operational value
 339  * if limit is lower than mib
 340  *      use limit
 341  * else
 342  *      use mib
 343  * NOTE : numbers are negative, negate comparison !
 344  */
 345 static int set_min_max(int maxflag, u_long mib, u_long limit, u_long *oper)
 346 {
 347         u_long  old ;
 348         old = *oper ;
 349         if ((limit > mib) ^ maxflag)
 350                 *oper = limit ;
 351         else
 352                 *oper = mib ;
 353         return(old != *oper) ;
 354 }