void smt_emulate_token_ct(struct s_smc *smc, int mac_index)
{
u_long count;
u_long time;
time = smt_get_time();
count = ((time - smc->sm.last_tok_time[mac_index]) *
100)/TICKS_PER_SECOND;
if (smc->hw.mac_ring_is_up){
smc->mib.m[mac_index].fddiMACToken_Ct += count;
}
smc->sm.last_tok_time[mac_index] = time;
}
void smt_emulate_token_ct(struct s_smc *smc, int mac_index)
{
u_long count;
u_long time;
time = smt_get_time();
count = ((time - smc->sm.last_tok_time[mac_index]) *
100)/TICKS_PER_SECOND;
/*
* Only when ring is up we will have a token count. The
* flag is unfortunatly a single instance value. This
* doesn't matter now, because we currently have only
* one MAC instance.
*/
if (smc->hw.mac_ring_is_up){
smc->mib.m[mac_index].fddiMACToken_Ct += count;
}
/* Remember current time */
smc->sm.last_tok_time[mac_index] = time;
}
void smt_init_evc(struct s_smc *smc)
{
struct s_srf_evc *evc ;
const struct evc_init *init ;
int i ;
int index ;
int offset ;
static u_char fail_safe = FALSE ;
memset((char *)smc->evcs,0,sizeof(smc->evcs)) ;
evc = smc->evcs ;
init = evc_inits ;
for (i = 0 ; (unsigned) i < MAX_INIT_EVC ; i++) {
for (index = 0 ; index < init->n ; index++) {
evc->evc_code = init->code ;
evc->evc_para = init->para ;
evc->evc_index = init->index + index ;
#ifndef DEBUG
evc->evc_multiple = &fail_safe ;
evc->evc_cond_state = &fail_safe ;
#endif
evc++ ;
}
init++ ;
}
if ((unsigned) (evc - smc->evcs) > MAX_EVCS) {
SMT_PANIC(smc,SMT_E0127, SMT_E0127_MSG) ;
}
/*
* conditions
*/
smc->evcs[0].evc_cond_state = &smc->mib.fddiSMTPeerWrapFlag ;
smc->evcs[1].evc_cond_state =
&smc->mib.m[MAC0].fddiMACDuplicateAddressCond ;
smc->evcs[2].evc_cond_state =
&smc->mib.m[MAC0].fddiMACFrameErrorFlag ;
smc->evcs[3].evc_cond_state =
&smc->mib.m[MAC0].fddiMACNotCopiedFlag ;
/*
* events
*/
smc->evcs[4].evc_multiple = &smc->mib.m[MAC0].fddiMACMultiple_N ;
smc->evcs[5].evc_multiple = &smc->mib.m[MAC0].fddiMACMultiple_P ;
offset = 6 ;
for (i = 0 ; i < NUMPHYS ; i++) {
/*
* conditions
*/
smc->evcs[offset + 0*NUMPHYS].evc_cond_state =
&smc->mib.p[i].fddiPORTLerFlag ;
smc->evcs[offset + 1*NUMPHYS].evc_cond_state =
&smc->mib.p[i].fddiPORTEB_Condition ;
/*
* events
*/
smc->evcs[offset + 2*NUMPHYS].evc_multiple =
&smc->mib.p[i].fddiPORTMultiple_U ;
smc->evcs[offset + 3*NUMPHYS].evc_multiple =
&smc->mib.p[i].fddiPORTMultiple_P ;
offset++ ;
}
#ifdef DEBUG
for (i = 0, evc = smc->evcs ; (unsigned) i < MAX_EVCS ; i++, evc++) {
if (SMT_IS_CONDITION(evc->evc_code)) {
if (!evc->evc_cond_state) {
SMT_PANIC(smc,SMT_E0128, SMT_E0128_MSG) ;
}
evc->evc_multiple = &fail_safe ;
}
else {
if (!evc->evc_multiple) {
SMT_PANIC(smc,SMT_E0129, SMT_E0129_MSG) ;
}
evc->evc_cond_state = &fail_safe ;
}
}
#endif
smc->srf.TSR = smt_get_time() ;
smc->srf.sr_state = SR0_WAIT ;
}
void smt_srf_event(struct s_smc *smc, int code, int index, int cond)
{
struct s_srf_evc *evc ;
int cond_asserted = 0 ;
int cond_deasserted = 0 ;
int event_occurred = 0 ;
int tsr ;
int T_Limit = 2*TICKS_PER_SECOND ;
if (code == SMT_COND_MAC_DUP_ADDR && cond) {
RS_SET(smc,RS_DUPADDR) ;
}
if (code) {
DB_SMT("SRF: %s index %d\n",srf_names[code],index) ;
if (!(evc = smt_get_evc(smc,code,index))) {
DB_SMT("SRF : smt_get_evc() failed\n",0,0) ;
return ;
}
/*
* ignore condition if no change
*/
if (SMT_IS_CONDITION(code)) {
if (*evc->evc_cond_state == cond)
return ;
}
/*
* set transition time stamp
*/
smt_set_timestamp(smc,smc->mib.fddiSMTTransitionTimeStamp) ;
if (SMT_IS_CONDITION(code)) {
DB_SMT("SRF: condition is %s\n",cond ? "ON":"OFF",0) ;
if (cond) {
*evc->evc_cond_state = TRUE ;
evc->evc_rep_required = TRUE ;
smc->srf.any_report = TRUE ;
cond_asserted = TRUE ;
}
else {
*evc->evc_cond_state = FALSE ;
cond_deasserted = TRUE ;
}
}
else {
if (evc->evc_rep_required) {
*evc->evc_multiple = TRUE ;
}
else {
evc->evc_rep_required = TRUE ;
*evc->evc_multiple = FALSE ;
}
smc->srf.any_report = TRUE ;
event_occurred = TRUE ;
}
#ifdef FDDI_MIB
snmp_srf_event(smc,evc) ;
#endif /* FDDI_MIB */
}
tsr = smt_get_time() - smc->srf.TSR ;
switch (smc->srf.sr_state) {
case SR0_WAIT :
/* SR01a */
if (cond_asserted && tsr < T_Limit) {
smc->srf.SRThreshold = THRESHOLD_2 ;
smc->srf.sr_state = SR1_HOLDOFF ;
break ;
}
/* SR01b */
if (cond_deasserted && tsr < T_Limit) {
smc->srf.sr_state = SR1_HOLDOFF ;
break ;
}
/* SR01c */
if (event_occurred && tsr < T_Limit) {
smc->srf.sr_state = SR1_HOLDOFF ;
break ;
}
/* SR00b */
if (cond_asserted && tsr >= T_Limit) {
smc->srf.SRThreshold = THRESHOLD_2 ;
smc->srf.TSR = smt_get_time() ;
smt_send_srf(smc) ;
break ;
}
/* SR00c */
if (cond_deasserted && tsr >= T_Limit) {
smc->srf.TSR = smt_get_time() ;
smt_send_srf(smc) ;
break ;
}
/* SR00d */
if (event_occurred && tsr >= T_Limit) {
smc->srf.TSR = smt_get_time() ;
smt_send_srf(smc) ;
break ;
}
/* SR00e */
if (smc->srf.any_report && (u_long) tsr >=
smc->srf.SRThreshold) {
smc->srf.SRThreshold *= 2 ;
if (smc->srf.SRThreshold > THRESHOLD_32)
smc->srf.SRThreshold = THRESHOLD_32 ;
smc->srf.TSR = smt_get_time() ;
smt_send_srf(smc) ;
break ;
}
/* SR02 */
if (!smc->mib.fddiSMTStatRptPolicy) {
smc->srf.sr_state = SR2_DISABLED ;
break ;
}
break ;
case SR1_HOLDOFF :
/* SR10b */
if (tsr >= T_Limit) {
smc->srf.sr_state = SR0_WAIT ;
smc->srf.TSR = smt_get_time() ;
smt_send_srf(smc) ;
break ;
}
/* SR11a */
if (cond_asserted) {
smc->srf.SRThreshold = THRESHOLD_2 ;
}
/* SR11b */
/* SR11c */
/* handled above */
/* SR12 */
if (!smc->mib.fddiSMTStatRptPolicy) {
smc->srf.sr_state = SR2_DISABLED ;
break ;
}
break ;
case SR2_DISABLED :
if (smc->mib.fddiSMTStatRptPolicy) {
smc->srf.sr_state = SR0_WAIT ;
smc->srf.TSR = smt_get_time() ;
smc->srf.SRThreshold = THRESHOLD_2 ;
clear_all_rep(smc) ;
break ;
}
break ;
}
}
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
}
void smt_received_pack(struct s_smc *smc, SMbuf *mb, int fs)
{
struct smt_header *sm ;
int local ;
int illegal = 0 ;
switch (m_fc(mb)) {
case FC_SMT_INFO :
case FC_SMT_LAN_LOC :
case FC_SMT_LOC :
case FC_SMT_NSA :
break ;
default :
smt_free_mbuf(smc,mb) ;
return ;
}
smc->mib.m[MAC0].fddiMACSMTCopied_Ct++ ;
sm = smtod(mb,struct smt_header *) ;
local = ((fs & L_INDICATOR) != 0) ;
hwm_conv_can(smc,(char *)sm,12) ;
if (is_individual(&sm->smt_dest) && !is_my_addr(smc,&sm->smt_dest)) {
smt_free_mbuf(smc,mb) ;
return ;
}
#if 0
if (is_my_addr(smc,&sm->smt_source) && !local) {
smt_free_mbuf(smc,mb) ;
return ;
}
#endif
smt_swap_para(sm,(int) mb->sm_len,1) ;
DB_SMT("SMT : received packet [%s] at 0x%x\n",
smt_type_name[m_fc(mb) & 0xf],sm) ;
DB_SMT("SMT : version %d, class %s\n",sm->smt_version,
smt_class_name[(sm->smt_class>LAST_CLASS)?0 : sm->smt_class]) ;
#ifdef SBA
if (m_fc(mb) == FC_SMT_NSA && sm->smt_class == SMT_NIF &&
(sm->smt_type == SMT_ANNOUNCE || sm->smt_type == SMT_REQUEST)) {
smc->sba.sm = sm ;
sba(smc,NIF) ;
}
#endif
if ( (fs & A_INDICATOR) && m_fc(mb) == FC_SMT_NSA) {
DB_SMT("SMT : ignoring NSA with A-indicator set from %s\n",
addr_to_string(&sm->smt_source),0) ;
smt_free_mbuf(smc,mb) ;
return ;
}
if (((sm->smt_class == SMT_ECF) && (sm->smt_len > SMT_MAX_ECHO_LEN)) ||
((sm->smt_class != SMT_ECF) && (sm->smt_len > SMT_MAX_INFO_LEN))) {
smt_free_mbuf(smc,mb) ;
return ;
}
switch (sm->smt_class) {
case SMT_NIF :
case SMT_SIF_CONFIG :
case SMT_SIF_OPER :
case SMT_ECF :
if (sm->smt_version != SMT_VID)
illegal = 1;
break ;
default :
if (sm->smt_version != SMT_VID_2)
illegal = 1;
break ;
}
if (illegal) {
DB_SMT("SMT : version = %d, dest = %s\n",
sm->smt_version,addr_to_string(&sm->smt_source)) ;
smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_VERSION,local) ;
smt_free_mbuf(smc,mb) ;
return ;
}
if ((sm->smt_len > mb->sm_len - sizeof(struct smt_header)) ||
((sm->smt_len & 3) && (sm->smt_class != SMT_ECF))) {
DB_SMT("SMT: info length error, len = %d\n",sm->smt_len,0) ;
smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_LENGTH,local) ;
smt_free_mbuf(smc,mb) ;
return ;
}
switch (sm->smt_class) {
case SMT_NIF :
if (smt_check_para(smc,sm,plist_nif)) {
DB_SMT("SMT: NIF with para problem, ignoring\n",0,0) ;
break ;
} ;
switch (sm->smt_type) {
case SMT_ANNOUNCE :
case SMT_REQUEST :
if (!(fs & C_INDICATOR) && m_fc(mb) == FC_SMT_NSA
&& is_broadcast(&sm->smt_dest)) {
struct smt_p_state *st ;
if (!is_equal(
&smc->mib.m[MAC0].fddiMACUpstreamNbr,
&sm->smt_source)) {
DB_SMT("SMT : updated my UNA = %s\n",
addr_to_string(&sm->smt_source),0) ;
if (!is_equal(&smc->mib.m[MAC0].
fddiMACUpstreamNbr,&SMT_Unknown)){
smc->mib.m[MAC0].fddiMACOldUpstreamNbr=
smc->mib.m[MAC0].fddiMACUpstreamNbr ;
}
smc->mib.m[MAC0].fddiMACUpstreamNbr =
sm->smt_source ;
smt_srf_event(smc,
SMT_EVENT_MAC_NEIGHBOR_CHANGE,
INDEX_MAC,0) ;
smt_echo_test(smc,0) ;
}
smc->sm.smt_tvu = smt_get_time() ;
st = (struct smt_p_state *)
sm_to_para(smc,sm,SMT_P_STATE) ;
if (st) {
smc->mib.m[MAC0].fddiMACUNDA_Flag =
(st->st_dupl_addr & SMT_ST_MY_DUPA) ?
TRUE : FALSE ;
update_dac(smc,1) ;
}
}
if ((sm->smt_type == SMT_REQUEST) &&
is_individual(&sm->smt_source) &&
((!(fs & A_INDICATOR) && m_fc(mb) == FC_SMT_NSA) ||
(m_fc(mb) != FC_SMT_NSA))) {
DB_SMT("SMT : replying to NIF request %s\n",
addr_to_string(&sm->smt_source),0) ;
smt_send_nif(smc,&sm->smt_source,
FC_SMT_INFO,
sm->smt_tid,
SMT_REPLY,local) ;
}
break ;
case SMT_REPLY :
DB_SMT("SMT : received NIF response from %s\n",
addr_to_string(&sm->smt_source),0) ;
if (fs & A_INDICATOR) {
smc->sm.pend[SMT_TID_NIF] = 0 ;
DB_SMT("SMT : duplicate address\n",0,0) ;
smc->mib.m[MAC0].fddiMACDupAddressTest =
DA_FAILED ;
smc->r.dup_addr_test = DA_FAILED ;
queue_event(smc,EVENT_RMT,RM_DUP_ADDR) ;
smc->mib.m[MAC0].fddiMACDA_Flag = TRUE ;
update_dac(smc,1) ;
break ;
}
if (sm->smt_tid == smc->sm.pend[SMT_TID_NIF]) {
smc->sm.pend[SMT_TID_NIF] = 0 ;
if (!is_equal(
&smc->mib.m[MAC0].fddiMACDownstreamNbr,
&sm->smt_source)) {
DB_SMT("SMT : updated my DNA\n",0,0) ;
if (!is_equal(&smc->mib.m[MAC0].
fddiMACDownstreamNbr, &SMT_Unknown)){
smc->mib.m[MAC0].fddiMACOldDownstreamNbr =
smc->mib.m[MAC0].fddiMACDownstreamNbr ;
}
smc->mib.m[MAC0].fddiMACDownstreamNbr =
sm->smt_source ;
smt_srf_event(smc,
SMT_EVENT_MAC_NEIGHBOR_CHANGE,
INDEX_MAC,0) ;
smt_echo_test(smc,1) ;
}
smc->mib.m[MAC0].fddiMACDA_Flag = FALSE ;
update_dac(smc,1) ;
smc->sm.smt_tvd = smt_get_time() ;
smc->mib.m[MAC0].fddiMACDupAddressTest =
DA_PASSED ;
if (smc->r.dup_addr_test != DA_PASSED) {
smc->r.dup_addr_test = DA_PASSED ;
queue_event(smc,EVENT_RMT,RM_DUP_ADDR) ;
}
}
else if (sm->smt_tid ==
smc->sm.pend[SMT_TID_NIF_TEST]) {
DB_SMT("SMT : NIF test TID ok\n",0,0) ;
}
else {
DB_SMT("SMT : expected TID %lx, got %lx\n",
smc->sm.pend[SMT_TID_NIF],sm->smt_tid) ;
}
break ;
default :
illegal = 2 ;
break ;
}
break ;
case SMT_SIF_CONFIG :
if (sm->smt_type != SMT_REQUEST)
break ;
DB_SMT("SMT : replying to SIF Config request from %s\n",
addr_to_string(&sm->smt_source),0) ;
smt_send_sif_config(smc,&sm->smt_source,sm->smt_tid,local) ;
break ;
case SMT_SIF_OPER :
if (sm->smt_type != SMT_REQUEST)
break ;
DB_SMT("SMT : replying to SIF Operation request from %s\n",
addr_to_string(&sm->smt_source),0) ;
smt_send_sif_operation(smc,&sm->smt_source,sm->smt_tid,local) ;
break ;
case SMT_ECF :
switch (sm->smt_type) {
case SMT_REPLY :
smc->mib.priv.fddiPRIVECF_Reply_Rx++ ;
DB_SMT("SMT: received ECF reply from %s\n",
addr_to_string(&sm->smt_source),0) ;
if (sm_to_para(smc,sm,SMT_P_ECHODATA) == NULL) {
DB_SMT("SMT: ECHODATA missing\n",0,0) ;
break ;
}
if (sm->smt_tid == smc->sm.pend[SMT_TID_ECF]) {
DB_SMT("SMT : ECF test TID ok\n",0,0) ;
}
else if (sm->smt_tid == smc->sm.pend[SMT_TID_ECF_UNA]) {
DB_SMT("SMT : ECF test UNA ok\n",0,0) ;
}
else if (sm->smt_tid == smc->sm.pend[SMT_TID_ECF_DNA]) {
DB_SMT("SMT : ECF test DNA ok\n",0,0) ;
}
else {
DB_SMT("SMT : expected TID %lx, got %lx\n",
smc->sm.pend[SMT_TID_ECF],
sm->smt_tid) ;
}
break ;
case SMT_REQUEST :
smc->mib.priv.fddiPRIVECF_Req_Rx++ ;
{
if (sm->smt_len && !sm_to_para(smc,sm,SMT_P_ECHODATA)) {
DB_SMT("SMT: ECF with para problem,sending RDF\n",0,0) ;
smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_LENGTH,
local) ;
break ;
}
DB_SMT("SMT - sending ECF reply to %s\n",
addr_to_string(&sm->smt_source),0) ;
sm->smt_dest = sm->smt_source ;
sm->smt_type = SMT_REPLY ;
dump_smt(smc,sm,"ECF REPLY") ;
smc->mib.priv.fddiPRIVECF_Reply_Tx++ ;
smt_send_frame(smc,mb,FC_SMT_INFO,local) ;
return ;
}
default :
illegal = 1 ;
break ;
}
break ;
#ifndef BOOT
case SMT_RAF :
#ifdef ESS
DB_ESSN(2,"ESS: RAF frame received\n",0,0) ;
fs = ess_raf_received_pack(smc,mb,sm,fs) ;
#endif
#ifdef SBA
DB_SBAN(2,"SBA: RAF frame received\n",0,0) ;
sba_raf_received_pack(smc,sm,fs) ;
#endif
break ;
case SMT_RDF :
smc->mib.priv.fddiPRIVRDF_Rx++ ;
break ;
case SMT_ESF :
if (sm->smt_type == SMT_REQUEST) {
DB_SMT("SMT - received ESF, sending RDF\n",0,0) ;
smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_CLASS,local) ;
}
break ;
case SMT_PMF_GET :
case SMT_PMF_SET :
if (sm->smt_type != SMT_REQUEST)
break ;
if (sm->smt_class == SMT_PMF_GET)
smc->mib.priv.fddiPRIVPMF_Get_Rx++ ;
else
smc->mib.priv.fddiPRIVPMF_Set_Rx++ ;
if ((sm->smt_class == SMT_PMF_SET) &&
!is_individual(&sm->smt_dest)) {
DB_SMT("SMT: ignoring PMF-SET with I/G set\n",0,0) ;
break ;
}
smt_pmf_received_pack(smc,mb, local) ;
break ;
case SMT_SRF :
dump_smt(smc,sm,"SRF received") ;
break ;
default :
if (sm->smt_type != SMT_REQUEST)
break ;
DB_SMT("SMT : class = %d, send RDF to %s\n",
sm->smt_class, addr_to_string(&sm->smt_source)) ;
smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_CLASS,local) ;
break ;
#endif
}
if (illegal) {
DB_SMT("SMT: discarding invalid frame, reason = %d\n",
illegal,0) ;
}
smt_free_mbuf(smc,mb) ;
}
void smt_event(struct s_smc *smc, int event)
{
u_long time ;
#ifndef SMT_REAL_TOKEN_CT
int i ;
#endif
if (smc->sm.please_reconnect) {
smc->sm.please_reconnect -- ;
if (smc->sm.please_reconnect == 0) {
queue_event(smc,EVENT_ECM,EC_CONNECT) ;
}
}
if (event == SM_FAST)
return ;
smt_timer_poll(smc) ;
smt_start_watchdog(smc) ;
#ifndef SLIM_SMT
#ifndef BOOT
#ifdef ESS
ess_timer_poll(smc) ;
#endif
#endif
#ifdef SBA
sba_timer_poll(smc) ;
#endif
smt_srf_event(smc,0,0,0) ;
#endif
time = smt_get_time() ;
if (time - smc->sm.smt_last_lem >= TICKS_PER_SECOND*8) {
struct fddi_mib_m *mib ;
u_long upper ;
u_long lower ;
int cond ;
int port;
struct s_phy *phy ;
sm_lem_evaluate(smc) ;
smc->sm.smt_last_lem = time ;
#ifndef SLIM_SMT
mac_update_counter(smc) ;
mib = smc->mib.m ;
upper =
(mib->fddiMACLost_Ct - mib->fddiMACOld_Lost_Ct) +
(mib->fddiMACError_Ct - mib->fddiMACOld_Error_Ct) ;
lower =
(mib->fddiMACFrame_Ct - mib->fddiMACOld_Frame_Ct) +
(mib->fddiMACLost_Ct - mib->fddiMACOld_Lost_Ct) ;
mib->fddiMACFrameErrorRatio = div_ratio(upper,lower) ;
cond =
((!mib->fddiMACFrameErrorThreshold &&
mib->fddiMACError_Ct != mib->fddiMACOld_Error_Ct) ||
(mib->fddiMACFrameErrorRatio >
mib->fddiMACFrameErrorThreshold)) ;
if (cond != mib->fddiMACFrameErrorFlag)
smt_srf_event(smc,SMT_COND_MAC_FRAME_ERROR,
INDEX_MAC,cond) ;
upper =
(mib->fddiMACNotCopied_Ct - mib->fddiMACOld_NotCopied_Ct) ;
lower =
upper +
(mib->fddiMACCopied_Ct - mib->fddiMACOld_Copied_Ct) ;
mib->fddiMACNotCopiedRatio = div_ratio(upper,lower) ;
cond =
((!mib->fddiMACNotCopiedThreshold &&
mib->fddiMACNotCopied_Ct !=
mib->fddiMACOld_NotCopied_Ct)||
(mib->fddiMACNotCopiedRatio >
mib->fddiMACNotCopiedThreshold)) ;
if (cond != mib->fddiMACNotCopiedFlag)
smt_srf_event(smc,SMT_COND_MAC_NOT_COPIED,
INDEX_MAC,cond) ;
mib->fddiMACOld_Frame_Ct = mib->fddiMACFrame_Ct ;
mib->fddiMACOld_Copied_Ct = mib->fddiMACCopied_Ct ;
mib->fddiMACOld_Error_Ct = mib->fddiMACError_Ct ;
mib->fddiMACOld_Lost_Ct = mib->fddiMACLost_Ct ;
mib->fddiMACOld_NotCopied_Ct = mib->fddiMACNotCopied_Ct ;
for (port = 0; port < NUMPHYS; port ++) {
phy = &smc->y[port] ;
if (!phy->mib->fddiPORTHardwarePresent) {
continue;
}
cond = (phy->mib->fddiPORTEBError_Ct -
phy->mib->fddiPORTOldEBError_Ct > 5) ;
smt_srf_event(smc,SMT_COND_PORT_EB_ERROR,
(int) (INDEX_PORT+ phy->np) ,cond) ;
phy->mib->fddiPORTOldEBError_Ct =
phy->mib->fddiPORTEBError_Ct ;
}
#endif
}
#ifndef SLIM_SMT
if (time - smc->sm.smt_last_notify >= (u_long)
(smc->mib.fddiSMTTT_Notify * TICKS_PER_SECOND) ) {
if (!smc->sm.pend[SMT_TID_NIF])
smc->sm.pend[SMT_TID_NIF] = smt_get_tid(smc) ;
smt_send_nif(smc,&fddi_broadcast, FC_SMT_NSA,
smc->sm.pend[SMT_TID_NIF], SMT_REQUEST,0) ;
smc->sm.smt_last_notify = time ;
}
if (smc->sm.smt_tvu &&
time - smc->sm.smt_tvu > 228*TICKS_PER_SECOND) {
DB_SMT("SMT : UNA expired\n",0,0) ;
smc->sm.smt_tvu = 0 ;
if (!is_equal(&smc->mib.m[MAC0].fddiMACUpstreamNbr,
&SMT_Unknown)){
smc->mib.m[MAC0].fddiMACOldUpstreamNbr=
smc->mib.m[MAC0].fddiMACUpstreamNbr ;
}
smc->mib.m[MAC0].fddiMACUpstreamNbr = SMT_Unknown ;
smc->mib.m[MAC0].fddiMACUNDA_Flag = FALSE ;
update_dac(smc,0) ;
smt_srf_event(smc, SMT_EVENT_MAC_NEIGHBOR_CHANGE,
INDEX_MAC,0) ;
}
if (smc->sm.smt_tvd &&
time - smc->sm.smt_tvd > 228*TICKS_PER_SECOND) {
DB_SMT("SMT : DNA expired\n",0,0) ;
smc->sm.smt_tvd = 0 ;
if (!is_equal(&smc->mib.m[MAC0].fddiMACDownstreamNbr,
&SMT_Unknown)){
smc->mib.m[MAC0].fddiMACOldDownstreamNbr=
smc->mib.m[MAC0].fddiMACDownstreamNbr ;
}
smc->mib.m[MAC0].fddiMACDownstreamNbr = SMT_Unknown ;
smt_srf_event(smc, SMT_EVENT_MAC_NEIGHBOR_CHANGE,
INDEX_MAC,0) ;
}
#endif
#ifndef SMT_REAL_TOKEN_CT
for (i = MAC0; i < NUMMACS; i++ ){
if (time - smc->sm.last_tok_time[i] > 2*TICKS_PER_SECOND ){
smt_emulate_token_ct( smc, i );
}
}
#endif
smt_timer_start(smc,&smc->sm.smt_timer, (u_long)1000000L,
EV_TOKEN(EVENT_SMT,SM_TIMER)) ;
}
/*ARGSUSED1*/
void smt_event(struct s_smc *smc, int event)
{
u_long time ;
#ifndef SMT_REAL_TOKEN_CT
int i ;
#endif
if (smc->sm.please_reconnect) {
smc->sm.please_reconnect -- ;
if (smc->sm.please_reconnect == 0) {
/* Counted down */
queue_event(smc,EVENT_ECM,EC_CONNECT) ;
}
}
if (event == SM_FAST)
return ;
/*
* timer for periodic cleanup in driver
* reset and start the watchdog (FM2)
* ESS timer
* SBA timer
*/
smt_timer_poll(smc) ;
smt_start_watchdog(smc) ;
#ifndef SLIM_SMT
#ifndef BOOT
#ifdef ESS
ess_timer_poll(smc) ;
#endif
#endif
#ifdef SBA
sba_timer_poll(smc) ;
#endif
smt_srf_event(smc,0,0,0) ;
#endif /* no SLIM_SMT */
time = smt_get_time() ;
if (time - smc->sm.smt_last_lem >= TICKS_PER_SECOND*8) {
/*
* Use 8 sec. for the time intervall, it simplifies the
* LER estimation.
*/
struct fddi_mib_m *mib ;
u_long upper ;
u_long lower ;
int cond ;
int port;
struct s_phy *phy ;
/*
* calculate LEM bit error rate
*/
sm_lem_evaluate(smc) ;
smc->sm.smt_last_lem = time ;
/*
* check conditions
*/
#ifndef SLIM_SMT
mac_update_counter(smc) ;
mib = smc->mib.m ;
upper =
(mib->fddiMACLost_Ct - mib->fddiMACOld_Lost_Ct) +
(mib->fddiMACError_Ct - mib->fddiMACOld_Error_Ct) ;
lower =
(mib->fddiMACFrame_Ct - mib->fddiMACOld_Frame_Ct) +
(mib->fddiMACLost_Ct - mib->fddiMACOld_Lost_Ct) ;
mib->fddiMACFrameErrorRatio = div_ratio(upper,lower) ;
cond =
((!mib->fddiMACFrameErrorThreshold &&
mib->fddiMACError_Ct != mib->fddiMACOld_Error_Ct) ||
(mib->fddiMACFrameErrorRatio >
mib->fddiMACFrameErrorThreshold)) ;
if (cond != mib->fddiMACFrameErrorFlag)
smt_srf_event(smc,SMT_COND_MAC_FRAME_ERROR,
INDEX_MAC,cond) ;
upper =
(mib->fddiMACNotCopied_Ct - mib->fddiMACOld_NotCopied_Ct) ;
lower =
upper +
(mib->fddiMACCopied_Ct - mib->fddiMACOld_Copied_Ct) ;
mib->fddiMACNotCopiedRatio = div_ratio(upper,lower) ;
cond =
((!mib->fddiMACNotCopiedThreshold &&
mib->fddiMACNotCopied_Ct !=
mib->fddiMACOld_NotCopied_Ct)||
(mib->fddiMACNotCopiedRatio >
mib->fddiMACNotCopiedThreshold)) ;
if (cond != mib->fddiMACNotCopiedFlag)
smt_srf_event(smc,SMT_COND_MAC_NOT_COPIED,
INDEX_MAC,cond) ;
/*
* set old values
*/
mib->fddiMACOld_Frame_Ct = mib->fddiMACFrame_Ct ;
mib->fddiMACOld_Copied_Ct = mib->fddiMACCopied_Ct ;
mib->fddiMACOld_Error_Ct = mib->fddiMACError_Ct ;
mib->fddiMACOld_Lost_Ct = mib->fddiMACLost_Ct ;
mib->fddiMACOld_NotCopied_Ct = mib->fddiMACNotCopied_Ct ;
/*
* Check port EBError Condition
*/
for (port = 0; port < NUMPHYS; port ++) {
phy = &smc->y[port] ;
if (!phy->mib->fddiPORTHardwarePresent) {
continue;
}
cond = (phy->mib->fddiPORTEBError_Ct -
phy->mib->fddiPORTOldEBError_Ct > 5) ;
/* If ratio is more than 5 in 8 seconds
* Set the condition.
*/
smt_srf_event(smc,SMT_COND_PORT_EB_ERROR,
(int) (INDEX_PORT+ phy->np) ,cond) ;
/*
* set old values
*/
phy->mib->fddiPORTOldEBError_Ct =
phy->mib->fddiPORTEBError_Ct ;
}
#endif /* no SLIM_SMT */
}
#ifndef SLIM_SMT
if (time - smc->sm.smt_last_notify >= (u_long)
(smc->mib.fddiSMTTT_Notify * TICKS_PER_SECOND) ) {
/*
* we can either send an announcement or a request
* a request will trigger a reply so that we can update
* our dna
* note: same tid must be used until reply is received
*/
if (!smc->sm.pend[SMT_TID_NIF])
smc->sm.pend[SMT_TID_NIF] = smt_get_tid(smc) ;
smt_send_nif(smc,&fddi_broadcast, FC_SMT_NSA,
smc->sm.pend[SMT_TID_NIF], SMT_REQUEST,0) ;
smc->sm.smt_last_notify = time ;
}
/*
* check timer
*/
if (smc->sm.smt_tvu &&
time - smc->sm.smt_tvu > 228*TICKS_PER_SECOND) {
DB_SMT("SMT : UNA expired\n",0,0) ;
smc->sm.smt_tvu = 0 ;
if (!is_equal(&smc->mib.m[MAC0].fddiMACUpstreamNbr,
&SMT_Unknown)){
/* Do not update unknown address */
smc->mib.m[MAC0].fddiMACOldUpstreamNbr=
smc->mib.m[MAC0].fddiMACUpstreamNbr ;
}
smc->mib.m[MAC0].fddiMACUpstreamNbr = SMT_Unknown ;
smc->mib.m[MAC0].fddiMACUNDA_Flag = FALSE ;
/*
* Make sure the fddiMACUNDA_Flag = FALSE is
* included in the SRF so we don't generate
* a separate SRF for the deassertion of this
* condition
*/
update_dac(smc,0) ;
smt_srf_event(smc, SMT_EVENT_MAC_NEIGHBOR_CHANGE,
INDEX_MAC,0) ;
}
if (smc->sm.smt_tvd &&
time - smc->sm.smt_tvd > 228*TICKS_PER_SECOND) {
DB_SMT("SMT : DNA expired\n",0,0) ;
smc->sm.smt_tvd = 0 ;
if (!is_equal(&smc->mib.m[MAC0].fddiMACDownstreamNbr,
&SMT_Unknown)){
/* Do not update unknown address */
smc->mib.m[MAC0].fddiMACOldDownstreamNbr=
smc->mib.m[MAC0].fddiMACDownstreamNbr ;
}
smc->mib.m[MAC0].fddiMACDownstreamNbr = SMT_Unknown ;
smt_srf_event(smc, SMT_EVENT_MAC_NEIGHBOR_CHANGE,
INDEX_MAC,0) ;
}
#endif /* no SLIM_SMT */
#ifndef SMT_REAL_TOKEN_CT
/*
* Token counter emulation section. If hardware supports the token
* count, the token counter will be updated in mac_update_counter.
*/
for (i = MAC0; i < NUMMACS; i++ ){
if (time - smc->sm.last_tok_time[i] > 2*TICKS_PER_SECOND ){
smt_emulate_token_ct( smc, i );
}
}
#endif
smt_timer_start(smc,&smc->sm.smt_timer, (u_long)1000000L,
EV_TOKEN(EVENT_SMT,SM_TIMER)) ;
}
