// SPDX-License-Identifier: GPL-2.0-or-later
/******************************************************************************
 *
 *      (C)Copyright 1998,1999 SysKonnect,
 *      a business unit of Schneider & Koch & Co. Datensysteme GmbH.
 *
 *      See the file "skfddi.c" for further information.
 *
 *      The information in this file is provided "AS IS" without warranty.
 *
 ******************************************************************************/

/*
        SMT/CMT defaults
*/

#include "h/types.h"
#include "h/fddi.h"
#include "h/smc.h"

#ifndef OEM_USER_DATA
#define OEM_USER_DATA   "SK-NET FDDI V2.0 Userdata"
#endif

/*
 * defaults
 */
#define TTMS(x) ((u_long)(x)*1000L)
#define TTS(x)  ((u_long)(x)*1000000L)
#define TTUS(x) ((u_long)(x))

#define DEFAULT_TB_MIN          TTMS(5)
#define DEFAULT_TB_MAX          TTMS(50)
#define DEFAULT_C_MIN           TTUS(1600)
#define DEFAULT_T_OUT           TTMS(100+5)
#define DEFAULT_TL_MIN          TTUS(30)
#define DEFAULT_LC_SHORT        TTMS(50+5)
#define DEFAULT_LC_MEDIUM       TTMS(500+20)
#define DEFAULT_LC_LONG         TTS(5)+TTMS(50)
#define DEFAULT_LC_EXTENDED     TTS(50)+TTMS(50)
#define DEFAULT_T_NEXT_9        TTMS(200+10)
#define DEFAULT_NS_MAX          TTUS(1310)
#define DEFAULT_I_MAX           TTMS(25)
#define DEFAULT_IN_MAX          TTMS(40)
#define DEFAULT_TD_MIN          TTMS(5)
#define DEFAULT_T_NON_OP        TTS(1)
#define DEFAULT_T_STUCK         TTS(8)
#define DEFAULT_T_DIRECT        TTMS(370)
#define DEFAULT_T_JAM           TTMS(370)
#define DEFAULT_T_ANNOUNCE      TTMS(2500)
#define DEFAULT_D_MAX           TTUS(1617)
#define DEFAULT_LEM_ALARM       (8)
#define DEFAULT_LEM_CUTOFF      (7)
#define DEFAULT_TEST_DONE       TTS(1)
#define DEFAULT_CHECK_POLL      TTS(1)
#define DEFAULT_POLL            TTMS(50)

/*
 * LCT errors threshold
 */
#define DEFAULT_LCT_SHORT       1
#define DEFAULT_LCT_MEDIUM      3
#define DEFAULT_LCT_LONG        5
#define DEFAULT_LCT_EXTEND      50

/* Forward declarations */
void smt_reset_defaults(struct s_smc *smc, int level);
static void smt_init_mib(struct s_smc *smc, int level);
static int set_min_max(int maxflag, u_long mib, u_long limit, u_long *oper);

#define MS2BCLK(x)      ((x)*12500L)
#define US2BCLK(x)      ((x)*1250L)

void smt_reset_defaults(struct s_smc *smc, int level)
{
        struct smt_config       *smt ;
        int                     i ;
        u_long                  smt_boot_time;


        smt_init_mib(smc,level) ;

        smc->os.smc_version = SMC_VERSION ;
        smt_boot_time = smt_get_time();
        for( i = 0; i < NUMMACS; i++ )
                smc->sm.last_tok_time[i] = smt_boot_time ;
        smt = &smc->s ;
        smt->attach_s = 0 ;
        smt->build_ring_map = 1 ;
        smt->sas = SMT_DAS ;
        smt->numphys = NUMPHYS ;
        smt->pcm_tb_min = DEFAULT_TB_MIN ;
        smt->pcm_tb_max = DEFAULT_TB_MAX ;
        smt->pcm_c_min = DEFAULT_C_MIN ;
        smt->pcm_t_out = DEFAULT_T_OUT ;
        smt->pcm_tl_min = DEFAULT_TL_MIN ;
        smt->pcm_lc_short = DEFAULT_LC_SHORT ;
        smt->pcm_lc_medium = DEFAULT_LC_MEDIUM ;
        smt->pcm_lc_long = DEFAULT_LC_LONG ;
        smt->pcm_lc_extended = DEFAULT_LC_EXTENDED ;
        smt->pcm_t_next_9 = DEFAULT_T_NEXT_9 ;
        smt->pcm_ns_max = DEFAULT_NS_MAX ;
        smt->ecm_i_max = DEFAULT_I_MAX ;
        smt->ecm_in_max = DEFAULT_IN_MAX ;
        smt->ecm_td_min = DEFAULT_TD_MIN ;
        smt->ecm_test_done = DEFAULT_TEST_DONE ;
        smt->ecm_check_poll = DEFAULT_CHECK_POLL ;
        smt->rmt_t_non_op = DEFAULT_T_NON_OP ;
        smt->rmt_t_stuck = DEFAULT_T_STUCK ;
        smt->rmt_t_direct = DEFAULT_T_DIRECT ;
        smt->rmt_t_jam = DEFAULT_T_JAM ;
        smt->rmt_t_announce = DEFAULT_T_ANNOUNCE ;
        smt->rmt_t_poll = DEFAULT_POLL ;
        smt->rmt_dup_mac_behavior = FALSE ;  /* See Struct smt_config */
        smt->mac_d_max = DEFAULT_D_MAX ;

        smt->lct_short = DEFAULT_LCT_SHORT ;
        smt->lct_medium = DEFAULT_LCT_MEDIUM ;
        smt->lct_long = DEFAULT_LCT_LONG ;
        smt->lct_extended = DEFAULT_LCT_EXTEND ;

#ifndef SLIM_SMT
#ifdef  ESS
        if (level == 0) {
                smc->ess.sync_bw_available = FALSE ;
                smc->mib.fddiESSPayload = 0 ;
                smc->mib.fddiESSOverhead = 0 ;
                smc->mib.fddiESSMaxTNeg = (u_long)(- MS2BCLK(25)) ;
                smc->mib.fddiESSMinSegmentSize = 1 ;
                smc->mib.fddiESSCategory = SB_STATIC ;
                smc->mib.fddiESSSynchTxMode = FALSE ;
                smc->ess.raf_act_timer_poll = FALSE ;
                smc->ess.timer_count = 7 ;      /* first RAF alc req after 3s */
        }
        smc->ess.local_sba_active = FALSE ;
        smc->ess.sba_reply_pend = NULL ;
#endif
#ifdef  SBA
        smt_init_sba(smc,level) ;
#endif
#endif  /* no SLIM_SMT */
#ifdef  TAG_MODE
        if (level == 0) {
                smc->hw.pci_fix_value = 0 ;
        }
#endif
}

/*
 * manufacturer data
 */
static const char man_data[32] =
/*       01234567890123456789012345678901       */
        "xxxSK-NET FDDI SMT 7.3 - V2.8.8" ;

static void smt_init_mib(struct s_smc *smc, int level)
{
        struct fddi_mib         *mib ;
        struct fddi_mib_p       *pm ;
        int                     port ;
        int                     path ;

        mib = &smc->mib ;
        if (level == 0) {
                /*
                 * set EVERYTHING to ZERO
                 * EXCEPT hw and os
                 */
                memset(((char *)smc)+
                        sizeof(struct s_smt_os)+sizeof(struct s_smt_hw), 0,
                        sizeof(struct s_smc) -
                        sizeof(struct s_smt_os) - sizeof(struct s_smt_hw)) ;
        }
        else {
                mib->fddiSMTRemoteDisconnectFlag = 0 ;
                mib->fddiSMTPeerWrapFlag = 0 ;
        }

        mib->fddiSMTOpVersionId = 2 ;
        mib->fddiSMTHiVersionId = 2 ;
        mib->fddiSMTLoVersionId = 2 ;
        memcpy((char *) mib->fddiSMTManufacturerData,man_data,32) ;
        if (level == 0) {
                strcpy(mib->fddiSMTUserData,OEM_USER_DATA) ;
        }
        mib->fddiSMTMIBVersionId = 1 ;
        mib->fddiSMTMac_Ct = NUMMACS ;
        mib->fddiSMTConnectionPolicy = POLICY_MM | POLICY_AA | POLICY_BB ;

        /*
         * fddiSMTNonMaster_Ct and fddiSMTMaster_Ct are set in smt_fixup_mib
         * s.sas is not set yet (is set in init driver)
         */
        mib->fddiSMTAvailablePaths = MIB_PATH_P | MIB_PATH_S ;

        mib->fddiSMTConfigCapabilities = 0 ;    /* no hold,no wrap_ab*/
        mib->fddiSMTTT_Notify = 10 ;
        mib->fddiSMTStatRptPolicy = TRUE ;
        mib->fddiSMTTrace_MaxExpiration = SEC2MIB(7) ;
        mib->fddiSMTMACIndexes = INDEX_MAC ;
        mib->fddiSMTStationStatus = MIB_SMT_STASTA_SEPA ;       /* separated */

        mib->m[MAC0].fddiMACIndex = INDEX_MAC ;
        mib->m[MAC0].fddiMACFrameStatusFunctions = FSC_TYPE0 ;
        mib->m[MAC0].fddiMACRequestedPaths =
                MIB_P_PATH_LOCAL |
                MIB_P_PATH_SEC_ALTER |
                MIB_P_PATH_PRIM_ALTER ;
        mib->m[MAC0].fddiMACAvailablePaths = MIB_PATH_P ;
        mib->m[MAC0].fddiMACCurrentPath = MIB_PATH_PRIMARY ;
        mib->m[MAC0].fddiMACT_MaxCapabilitiy = (u_long)(- MS2BCLK(165)) ;
        mib->m[MAC0].fddiMACTVXCapabilitiy = (u_long)(- US2BCLK(52)) ;
        if (level == 0) {
                mib->m[MAC0].fddiMACTvxValue = (u_long)(- US2BCLK(27)) ;
                mib->m[MAC0].fddiMACTvxValueMIB = (u_long)(- US2BCLK(27)) ;
                mib->m[MAC0].fddiMACT_Req = (u_long)(- MS2BCLK(165)) ;
                mib->m[MAC0].fddiMACT_ReqMIB = (u_long)(- MS2BCLK(165)) ;
                mib->m[MAC0].fddiMACT_Max = (u_long)(- MS2BCLK(165)) ;
                mib->m[MAC0].fddiMACT_MaxMIB = (u_long)(- MS2BCLK(165)) ;
                mib->m[MAC0].fddiMACT_Min = (u_long)(- MS2BCLK(4)) ;
        }
        mib->m[MAC0].fddiMACHardwarePresent = TRUE ;
        mib->m[MAC0].fddiMACMA_UnitdataEnable = TRUE ;
        mib->m[MAC0].fddiMACFrameErrorThreshold = 1 ;
        mib->m[MAC0].fddiMACNotCopiedThreshold = 1 ;
        /*
         * Path attributes
         */
        for (path = 0 ; path < NUMPATHS ; path++) {
                mib->a[path].fddiPATHIndex = INDEX_PATH + path ;
                if (level == 0) {
                        mib->a[path].fddiPATHTVXLowerBound =
                                (u_long)(- US2BCLK(27)) ;
                        mib->a[path].fddiPATHT_MaxLowerBound =
                                (u_long)(- MS2BCLK(165)) ;
                        mib->a[path].fddiPATHMaxT_Req =
                                (u_long)(- MS2BCLK(165)) ;
                }
        }


        /*
         * Port attributes
         */
        pm = mib->p ;
        for (port = 0 ; port <  NUMPHYS ; port++) {
                /*
                 * set MIB pointer in phy
                 */
                /* Attention: don't initialize mib pointer here! */
                /*  It must be initialized during phase 2 */
                smc->y[port].mib = NULL;
                mib->fddiSMTPORTIndexes[port] = port+INDEX_PORT ;

                pm->fddiPORTIndex = port+INDEX_PORT ;
                pm->fddiPORTHardwarePresent = TRUE ;
                if (level == 0) {
                        pm->fddiPORTLer_Alarm = DEFAULT_LEM_ALARM ;
                        pm->fddiPORTLer_Cutoff = DEFAULT_LEM_CUTOFF ;
                }
                /*
                 * fddiPORTRequestedPaths are set in pcmplc.c
                 * we don't know the port type yet !
                 */
                pm->fddiPORTRequestedPaths[1] = 0 ;
                pm->fddiPORTRequestedPaths[2] = 0 ;
                pm->fddiPORTRequestedPaths[3] = 0 ;
                pm->fddiPORTAvailablePaths = MIB_PATH_P ;
                pm->fddiPORTPMDClass = MIB_PMDCLASS_MULTI ;
                pm++ ;
        }

        (void) smt_set_mac_opvalues(smc) ;
}

int smt_set_mac_opvalues(struct s_smc *smc)
{
        int     st ;
        int     st2 ;

        st = set_min_max(1,smc->mib.m[MAC0].fddiMACTvxValueMIB,
                smc->mib.a[PATH0].fddiPATHTVXLowerBound,
                &smc->mib.m[MAC0].fddiMACTvxValue) ;
        st |= set_min_max(0,smc->mib.m[MAC0].fddiMACT_MaxMIB,
                smc->mib.a[PATH0].fddiPATHT_MaxLowerBound,
                &smc->mib.m[MAC0].fddiMACT_Max) ;
        st |= (st2 = set_min_max(0,smc->mib.m[MAC0].fddiMACT_ReqMIB,
                smc->mib.a[PATH0].fddiPATHMaxT_Req,
                &smc->mib.m[MAC0].fddiMACT_Req)) ;
        if (st2) {
                /* Treq attribute changed remotely. So send an AIX_EVENT to the
                 * user
                 */
                AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
                        FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_T_REQ,
                        smt_get_event_word(smc));
        }
        return st;
}

void smt_fixup_mib(struct s_smc *smc)
{
#ifdef  CONCENTRATOR
        switch (smc->s.sas) {
        case SMT_SAS :
                smc->mib.fddiSMTNonMaster_Ct = 1 ;
                break ;
        case SMT_DAS :
                smc->mib.fddiSMTNonMaster_Ct = 2 ;
                break ;
        case SMT_NAC :
                smc->mib.fddiSMTNonMaster_Ct = 0 ;
                break ;
        }
        smc->mib.fddiSMTMaster_Ct = NUMPHYS - smc->mib.fddiSMTNonMaster_Ct ;
#else
        switch (smc->s.sas) {
        case SMT_SAS :
                smc->mib.fddiSMTNonMaster_Ct = 1 ;
                break ;
        case SMT_DAS :
                smc->mib.fddiSMTNonMaster_Ct = 2 ;
                break ;
        }
        smc->mib.fddiSMTMaster_Ct = 0 ;
#endif
}

/*
 * determine new setting for operational value
 * if limit is lower than mib
 *      use limit
 * else
 *      use mib
 * NOTE : numbers are negative, negate comparison !
 */
static int set_min_max(int maxflag, u_long mib, u_long limit, u_long *oper)
{
        u_long  old ;
        old = *oper ;
        if ((limit > mib) ^ maxflag)
                *oper = limit ;
        else
                *oper = mib ;
        return old != *oper;
}