drivers/net/fddi/skfp/smtdef.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /******************************************************************************
   3  *
   4  *      (C)Copyright 1998,1999 SysKonnect,
   5  *      a business unit of Schneider & Koch & Co. Datensysteme GmbH.
   6  *
   7  *      See the file "skfddi.c" for further information.
   8  *
   9  *      The information in this file is provided "AS IS" without warranty.
  10  *
  11  ******************************************************************************/
  12
  13 /*
  14         SMT/CMT defaults
  15 */
  16
  17 #include "h/types.h"
  18 #include "h/fddi.h"
  19 #include "h/smc.h"
  20
  21 #ifndef OEM_USER_DATA
  22 #define OEM_USER_DATA   "SK-NET FDDI V2.0 Userdata"
  23 #endif
  24
  25 #ifndef lint
  26 static const char ID_sccs[] = "@(#)smtdef.c     2.53 99/08/11 (C) SK " ;
  27 #endif
  28
  29 /*
  30  * defaults
  31  */
  32 #define TTMS(x) ((u_long)(x)*1000L)
  33 #define TTS(x)  ((u_long)(x)*1000000L)
  34 #define TTUS(x) ((u_long)(x))
  35
  36 #define DEFAULT_TB_MIN          TTMS(5)
  37 #define DEFAULT_TB_MAX          TTMS(50)
  38 #define DEFAULT_C_MIN           TTUS(1600)
  39 #define DEFAULT_T_OUT           TTMS(100+5)
  40 #define DEFAULT_TL_MIN          TTUS(30)
  41 #define DEFAULT_LC_SHORT        TTMS(50+5)
  42 #define DEFAULT_LC_MEDIUM       TTMS(500+20)
  43 #define DEFAULT_LC_LONG         TTS(5)+TTMS(50)
  44 #define DEFAULT_LC_EXTENDED     TTS(50)+TTMS(50)
  45 #define DEFAULT_T_NEXT_9        TTMS(200+10)
  46 #define DEFAULT_NS_MAX          TTUS(1310)
  47 #define DEFAULT_I_MAX           TTMS(25)
  48 #define DEFAULT_IN_MAX          TTMS(40)
  49 #define DEFAULT_TD_MIN          TTMS(5)
  50 #define DEFAULT_T_NON_OP        TTS(1)
  51 #define DEFAULT_T_STUCK         TTS(8)
  52 #define DEFAULT_T_DIRECT        TTMS(370)
  53 #define DEFAULT_T_JAM           TTMS(370)
  54 #define DEFAULT_T_ANNOUNCE      TTMS(2500)
  55 #define DEFAULT_D_MAX           TTUS(1617)
  56 #define DEFAULT_LEM_ALARM       (8)
  57 #define DEFAULT_LEM_CUTOFF      (7)
  58 #define DEFAULT_TEST_DONE       TTS(1)
  59 #define DEFAULT_CHECK_POLL      TTS(1)
  60 #define DEFAULT_POLL            TTMS(50)
  61
  62 /*
  63  * LCT errors threshold
  64  */
  65 #define DEFAULT_LCT_SHORT       1
  66 #define DEFAULT_LCT_MEDIUM      3
  67 #define DEFAULT_LCT_LONG        5
  68 #define DEFAULT_LCT_EXTEND      50
  69
  70 /* Forward declarations */
  71 void smt_reset_defaults(struct s_smc *smc, int level);
  72 static void smt_init_mib(struct s_smc *smc, int level);
  73 static int set_min_max(int maxflag, u_long mib, u_long limit, u_long *oper);
  74
  75 #define MS2BCLK(x)      ((x)*12500L)
  76 #define US2BCLK(x)      ((x)*1250L)
  77
  78 void smt_reset_defaults(struct s_smc *smc, int level)
  79 {
  80         struct smt_config       *smt ;
  81         int                     i ;
  82         u_long                  smt_boot_time;
  83
  84
  85         smt_init_mib(smc,level) ;
  86
  87         smc->os.smc_version = SMC_VERSION ;
  88         smt_boot_time = smt_get_time();
  89         for( i = 0; i < NUMMACS; i++ )
  90                 smc->sm.last_tok_time[i] = smt_boot_time ;
  91         smt = &smc->s ;
  92         smt->attach_s = 0 ;
  93         smt->build_ring_map = 1 ;
  94         smt->sas = SMT_DAS ;
  95         smt->numphys = NUMPHYS ;
  96         smt->pcm_tb_min = DEFAULT_TB_MIN ;
  97         smt->pcm_tb_max = DEFAULT_TB_MAX ;
  98         smt->pcm_c_min = DEFAULT_C_MIN ;
  99         smt->pcm_t_out = DEFAULT_T_OUT ;
 100         smt->pcm_tl_min = DEFAULT_TL_MIN ;
 101         smt->pcm_lc_short = DEFAULT_LC_SHORT ;
 102         smt->pcm_lc_medium = DEFAULT_LC_MEDIUM ;
 103         smt->pcm_lc_long = DEFAULT_LC_LONG ;
 104         smt->pcm_lc_extended = DEFAULT_LC_EXTENDED ;
 105         smt->pcm_t_next_9 = DEFAULT_T_NEXT_9 ;
 106         smt->pcm_ns_max = DEFAULT_NS_MAX ;
 107         smt->ecm_i_max = DEFAULT_I_MAX ;
 108         smt->ecm_in_max = DEFAULT_IN_MAX ;
 109         smt->ecm_td_min = DEFAULT_TD_MIN ;
 110         smt->ecm_test_done = DEFAULT_TEST_DONE ;
 111         smt->ecm_check_poll = DEFAULT_CHECK_POLL ;
 112         smt->rmt_t_non_op = DEFAULT_T_NON_OP ;
 113         smt->rmt_t_stuck = DEFAULT_T_STUCK ;
 114         smt->rmt_t_direct = DEFAULT_T_DIRECT ;
 115         smt->rmt_t_jam = DEFAULT_T_JAM ;
 116         smt->rmt_t_announce = DEFAULT_T_ANNOUNCE ;
 117         smt->rmt_t_poll = DEFAULT_POLL ;
 118         smt->rmt_dup_mac_behavior = FALSE ;  /* See Struct smt_config */
 119         smt->mac_d_max = DEFAULT_D_MAX ;
 120
 121         smt->lct_short = DEFAULT_LCT_SHORT ;
 122         smt->lct_medium = DEFAULT_LCT_MEDIUM ;
 123         smt->lct_long = DEFAULT_LCT_LONG ;
 124         smt->lct_extended = DEFAULT_LCT_EXTEND ;
 125
 126 #ifndef SLIM_SMT
 127 #ifdef  ESS
 128         if (level == 0) {
 129                 smc->ess.sync_bw_available = FALSE ;
 130                 smc->mib.fddiESSPayload = 0 ;
 131                 smc->mib.fddiESSOverhead = 0 ;
 132                 smc->mib.fddiESSMaxTNeg = (u_long)(- MS2BCLK(25)) ;
 133                 smc->mib.fddiESSMinSegmentSize = 1 ;
 134                 smc->mib.fddiESSCategory = SB_STATIC ;
 135                 smc->mib.fddiESSSynchTxMode = FALSE ;
 136                 smc->ess.raf_act_timer_poll = FALSE ;
 137                 smc->ess.timer_count = 7 ;      /* first RAF alc req after 3s */
 138         }
 139         smc->ess.local_sba_active = FALSE ;
 140         smc->ess.sba_reply_pend = NULL ;
 141 #endif
 142 #ifdef  SBA
 143         smt_init_sba(smc,level) ;
 144 #endif
 145 #endif  /* no SLIM_SMT */
 146 #ifdef  TAG_MODE
 147         if (level == 0) {
 148                 smc->hw.pci_fix_value = 0 ;
 149         }
 150 #endif
 151 }
 152
 153 /*
 154  * manufacturer data
 155  */
 156 static const char man_data[32] =
 157 /*       01234567890123456789012345678901       */
 158         "xxxSK-NET FDDI SMT 7.3 - V2.8.8" ;
 159
 160 static void smt_init_mib(struct s_smc *smc, int level)
 161 {
 162         struct fddi_mib         *mib ;
 163         struct fddi_mib_p       *pm ;
 164         int                     port ;
 165         int                     path ;
 166
 167         mib = &smc->mib ;
 168         if (level == 0) {
 169                 /*
 170                  * set EVERYTHING to ZERO
 171                  * EXCEPT hw and os
 172                  */
 173                 memset(((char *)smc)+
 174                         sizeof(struct s_smt_os)+sizeof(struct s_smt_hw), 0,
 175                         sizeof(struct s_smc) -
 176                         sizeof(struct s_smt_os) - sizeof(struct s_smt_hw)) ;
 177         }
 178         else {
 179                 mib->fddiSMTRemoteDisconnectFlag = 0 ;
 180                 mib->fddiSMTPeerWrapFlag = 0 ;
 181         }
 182
 183         mib->fddiSMTOpVersionId = 2 ;
 184         mib->fddiSMTHiVersionId = 2 ;
 185         mib->fddiSMTLoVersionId = 2 ;
 186         memcpy((char *) mib->fddiSMTManufacturerData,man_data,32) ;
 187         if (level == 0) {
 188                 strcpy(mib->fddiSMTUserData,OEM_USER_DATA) ;
 189         }
 190         mib->fddiSMTMIBVersionId = 1 ;
 191         mib->fddiSMTMac_Ct = NUMMACS ;
 192         mib->fddiSMTConnectionPolicy = POLICY_MM | POLICY_AA | POLICY_BB ;
 193
 194         /*
 195          * fddiSMTNonMaster_Ct and fddiSMTMaster_Ct are set in smt_fixup_mib
 196          * s.sas is not set yet (is set in init driver)
 197          */
 198         mib->fddiSMTAvailablePaths = MIB_PATH_P | MIB_PATH_S ;
 199
 200         mib->fddiSMTConfigCapabilities = 0 ;    /* no hold,no wrap_ab*/
 201         mib->fddiSMTTT_Notify = 10 ;
 202         mib->fddiSMTStatRptPolicy = TRUE ;
 203         mib->fddiSMTTrace_MaxExpiration = SEC2MIB(7) ;
 204         mib->fddiSMTMACIndexes = INDEX_MAC ;
 205         mib->fddiSMTStationStatus = MIB_SMT_STASTA_SEPA ;       /* separated */
 206
 207         mib->m[MAC0].fddiMACIndex = INDEX_MAC ;
 208         mib->m[MAC0].fddiMACFrameStatusFunctions = FSC_TYPE0 ;
 209         mib->m[MAC0].fddiMACRequestedPaths =
 210                 MIB_P_PATH_LOCAL |
 211                 MIB_P_PATH_SEC_ALTER |
 212                 MIB_P_PATH_PRIM_ALTER ;
 213         mib->m[MAC0].fddiMACAvailablePaths = MIB_PATH_P ;
 214         mib->m[MAC0].fddiMACCurrentPath = MIB_PATH_PRIMARY ;
 215         mib->m[MAC0].fddiMACT_MaxCapabilitiy = (u_long)(- MS2BCLK(165)) ;
 216         mib->m[MAC0].fddiMACTVXCapabilitiy = (u_long)(- US2BCLK(52)) ;
 217         if (level == 0) {
 218                 mib->m[MAC0].fddiMACTvxValue = (u_long)(- US2BCLK(27)) ;
 219                 mib->m[MAC0].fddiMACTvxValueMIB = (u_long)(- US2BCLK(27)) ;
 220                 mib->m[MAC0].fddiMACT_Req = (u_long)(- MS2BCLK(165)) ;
 221                 mib->m[MAC0].fddiMACT_ReqMIB = (u_long)(- MS2BCLK(165)) ;
 222                 mib->m[MAC0].fddiMACT_Max = (u_long)(- MS2BCLK(165)) ;
 223                 mib->m[MAC0].fddiMACT_MaxMIB = (u_long)(- MS2BCLK(165)) ;
 224                 mib->m[MAC0].fddiMACT_Min = (u_long)(- MS2BCLK(4)) ;
 225         }
 226         mib->m[MAC0].fddiMACHardwarePresent = TRUE ;
 227         mib->m[MAC0].fddiMACMA_UnitdataEnable = TRUE ;
 228         mib->m[MAC0].fddiMACFrameErrorThreshold = 1 ;
 229         mib->m[MAC0].fddiMACNotCopiedThreshold = 1 ;
 230         /*
 231          * Path attributes
 232          */
 233         for (path = 0 ; path < NUMPATHS ; path++) {
 234                 mib->a[path].fddiPATHIndex = INDEX_PATH + path ;
 235                 if (level == 0) {
 236                         mib->a[path].fddiPATHTVXLowerBound =
 237                                 (u_long)(- US2BCLK(27)) ;
 238                         mib->a[path].fddiPATHT_MaxLowerBound =
 239                                 (u_long)(- MS2BCLK(165)) ;
 240                         mib->a[path].fddiPATHMaxT_Req =
 241                                 (u_long)(- MS2BCLK(165)) ;
 242                 }
 243         }
 244
 245
 246         /*
 247          * Port attributes
 248          */
 249         pm = mib->p ;
 250         for (port = 0 ; port <  NUMPHYS ; port++) {
 251                 /*
 252                  * set MIB pointer in phy
 253                  */
 254                 /* Attention: don't initialize mib pointer here! */
 255                 /*  It must be initialized during phase 2 */
 256                 smc->y[port].mib = NULL;
 257                 mib->fddiSMTPORTIndexes[port] = port+INDEX_PORT ;
 258
 259                 pm->fddiPORTIndex = port+INDEX_PORT ;
 260                 pm->fddiPORTHardwarePresent = TRUE ;
 261                 if (level == 0) {
 262                         pm->fddiPORTLer_Alarm = DEFAULT_LEM_ALARM ;
 263                         pm->fddiPORTLer_Cutoff = DEFAULT_LEM_CUTOFF ;
 264                 }
 265                 /*
 266                  * fddiPORTRequestedPaths are set in pcmplc.c
 267                  * we don't know the port type yet !
 268                  */
 269                 pm->fddiPORTRequestedPaths[1] = 0 ;
 270                 pm->fddiPORTRequestedPaths[2] = 0 ;
 271                 pm->fddiPORTRequestedPaths[3] = 0 ;
 272                 pm->fddiPORTAvailablePaths = MIB_PATH_P ;
 273                 pm->fddiPORTPMDClass = MIB_PMDCLASS_MULTI ;
 274                 pm++ ;
 275         }
 276
 277         (void) smt_set_mac_opvalues(smc) ;
 278 }
 279
 280 int smt_set_mac_opvalues(struct s_smc *smc)
 281 {
 282         int     st ;
 283         int     st2 ;
 284
 285         st = set_min_max(1,smc->mib.m[MAC0].fddiMACTvxValueMIB,
 286                 smc->mib.a[PATH0].fddiPATHTVXLowerBound,
 287                 &smc->mib.m[MAC0].fddiMACTvxValue) ;
 288         st |= set_min_max(0,smc->mib.m[MAC0].fddiMACT_MaxMIB,
 289                 smc->mib.a[PATH0].fddiPATHT_MaxLowerBound,
 290                 &smc->mib.m[MAC0].fddiMACT_Max) ;
 291         st |= (st2 = set_min_max(0,smc->mib.m[MAC0].fddiMACT_ReqMIB,
 292                 smc->mib.a[PATH0].fddiPATHMaxT_Req,
 293                 &smc->mib.m[MAC0].fddiMACT_Req)) ;
 294         if (st2) {
 295                 /* Treq attribute changed remotely. So send an AIX_EVENT to the
 296                  * user
 297                  */
 298                 AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
 299                         FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_T_REQ,
 300                         smt_get_event_word(smc));
 301         }
 302         return st;
 303 }
 304
 305 void smt_fixup_mib(struct s_smc *smc)
 306 {
 307 #ifdef  CONCENTRATOR
 308         switch (smc->s.sas) {
 309         case SMT_SAS :
 310                 smc->mib.fddiSMTNonMaster_Ct = 1 ;
 311                 break ;
 312         case SMT_DAS :
 313                 smc->mib.fddiSMTNonMaster_Ct = 2 ;
 314                 break ;
 315         case SMT_NAC :
 316                 smc->mib.fddiSMTNonMaster_Ct = 0 ;
 317                 break ;
 318         }
 319         smc->mib.fddiSMTMaster_Ct = NUMPHYS - smc->mib.fddiSMTNonMaster_Ct ;
 320 #else
 321         switch (smc->s.sas) {
 322         case SMT_SAS :
 323                 smc->mib.fddiSMTNonMaster_Ct = 1 ;
 324                 break ;
 325         case SMT_DAS :
 326                 smc->mib.fddiSMTNonMaster_Ct = 2 ;
 327                 break ;
 328         }
 329         smc->mib.fddiSMTMaster_Ct = 0 ;
 330 #endif
 331 }
 332
 333 /*
 334  * determine new setting for operational value
 335  * if limit is lower than mib
 336  *      use limit
 337  * else
 338  *      use mib
 339  * NOTE : numbers are negative, negate comparison !
 340  */
 341 static int set_min_max(int maxflag, u_long mib, u_long limit, u_long *oper)
 342 {
 343         u_long  old ;
 344         old = *oper ;
 345         if ((limit > mib) ^ maxflag)
 346                 *oper = limit ;
 347         else
 348                 *oper = mib ;
 349         return old != *oper;
 350 }
 351