cfm.c

h内核

		}
		/*SC02*/
		if ((smc->y[PB].cem_pst == CEM_PST_UP && smc->y[PB].cf_join &&
		     !smc->y[PB].wc_flag) || smc->y[PB].cf_loop) {
			GO_STATE(SC10_C_WRAP_B) ;
			break ;
		}
		break ;
	case ACTIONS(SC9_C_WRAP_A) :
		smc->mib.p[PA].fddiPORTCurrentPath = MIB_PATH_CONCATENATED ;
		smc->mib.p[PB].fddiPORTCurrentPath = MIB_PATH_ISOLATED ;
		smc->mib.p[PA].fddiPORTMACPlacement = INDEX_MAC ;
		smc->mib.p[PB].fddiPORTMACPlacement = 0 ;
		smc->mib.fddiSMTStationStatus = MIB_SMT_STASTA_CON ;
		config_mux(smc,MUX_WRAPA) ;		/* configure PHY mux */
		if (smc->y[PA].cf_loop) {
			smc->r.rm_join = FALSE ;
			smc->r.rm_loop = TRUE ;
			queue_event(smc,EVENT_RMT,RM_LOOP) ;/* signal RMT */
		}
		if (smc->y[PA].cf_join) {
			smc->r.rm_loop = FALSE ;
			smc->r.rm_join = TRUE ;
			queue_event(smc,EVENT_RMT,RM_JOIN) ;/* signal RMT */
		}
		ACTIONS_DONE() ;
		DB_CFMN(1,"CFM : %s\n",cfm_states[smc->mib.fddiSMTCF_State],0) ;
		break ;
	case SC9_C_WRAP_A :
		/*SC10*/
		if ( (smc->y[PA].wc_flag || !smc->y[PA].cf_join) &&
		      !smc->y[PA].cf_loop ) {
			GO_STATE(SC0_ISOLATED) ;
			break ;
		}
		/*SC12*/
		else if ( (smc->y[PB].cf_loop && smc->y[PA].cf_join &&
			   smc->y[PA].cem_pst == CEM_PST_UP) ||
			  ((smc->y[PB].cf_loop ||
			   (smc->y[PB].cf_join &&
			    smc->y[PB].cem_pst == CEM_PST_UP)) &&
			    (smc->y[PA].pc_mode == PM_TREE ||
			     smc->y[PB].pc_mode == PM_TREE))) {
			smc->y[PA].scrub = TRUE ;
			GO_STATE(SC10_C_WRAP_B) ;
			break ;
		}
		/*SC14*/
		else if (!smc->s.attach_s &&
			  smc->y[PA].cf_join &&
			  smc->y[PA].cem_pst == CEM_PST_UP &&
			  smc->y[PA].pc_mode == PM_PEER && smc->y[PB].cf_join &&
			  smc->y[PB].cem_pst == CEM_PST_UP &&
			  smc->y[PB].pc_mode == PM_PEER) {
			smc->y[PA].scrub = TRUE ;
			smc->y[PB].scrub = TRUE ;
			GO_STATE(SC4_THRU_A) ;
			break ;
		}
		/*SC15*/
		else if ( smc->s.attach_s &&
			  smc->y[PA].cf_join &&
			  smc->y[PA].cem_pst == CEM_PST_UP &&
			  smc->y[PA].pc_mode == PM_PEER &&
			  smc->y[PB].cf_join &&
			  smc->y[PB].cem_pst == CEM_PST_UP &&
			  smc->y[PB].pc_mode == PM_PEER) {
			smc->y[PA].scrub = TRUE ;
			smc->y[PB].scrub = TRUE ;
			GO_STATE(SC5_THRU_B) ;
			break ;
		}
		break ;
	case ACTIONS(SC10_C_WRAP_B) :
		smc->mib.p[PA].fddiPORTCurrentPath = MIB_PATH_ISOLATED ;
		smc->mib.p[PB].fddiPORTCurrentPath = MIB_PATH_CONCATENATED ;
		smc->mib.p[PA].fddiPORTMACPlacement = 0 ;
		smc->mib.p[PB].fddiPORTMACPlacement = INDEX_MAC ;
		smc->mib.fddiSMTStationStatus = MIB_SMT_STASTA_CON ;
		config_mux(smc,MUX_WRAPB) ;		/* configure PHY mux */
		if (smc->y[PB].cf_loop) {
			smc->r.rm_join = FALSE ;
			smc->r.rm_loop = TRUE ;
			queue_event(smc,EVENT_RMT,RM_LOOP) ;/* signal RMT */
		}
		if (smc->y[PB].cf_join) {
			smc->r.rm_loop = FALSE ;
			smc->r.rm_join = TRUE ;
			queue_event(smc,EVENT_RMT,RM_JOIN) ;/* signal RMT */
		}
		ACTIONS_DONE() ;
		DB_CFMN(1,"CFM : %s\n",cfm_states[smc->mib.fddiSMTCF_State],0) ;
		break ;
	case SC10_C_WRAP_B :
		/*SC20*/
		if ( !smc->y[PB].cf_join && !smc->y[PB].cf_loop ) {
			GO_STATE(SC0_ISOLATED) ;
			break ;
		}
		/*SC21*/
		else if ( smc->y[PA].cf_loop && smc->y[PA].pc_mode == PM_PEER &&
			  smc->y[PB].cf_join && smc->y[PB].pc_mode == PM_PEER) {
			smc->y[PB].scrub = TRUE ;
			GO_STATE(SC9_C_WRAP_A) ;
			break ;
		}
		/*SC24*/
		else if (!smc->s.attach_s &&
			 smc->y[PA].cf_join && smc->y[PA].pc_mode == PM_PEER &&
			 smc->y[PB].cf_join && smc->y[PB].pc_mode == PM_PEER) {
			smc->y[PA].scrub = TRUE ;
			smc->y[PB].scrub = TRUE ;
			GO_STATE(SC4_THRU_A) ;
			break ;
		}
		/*SC25*/
		else if ( smc->s.attach_s &&
			 smc->y[PA].cf_join && smc->y[PA].pc_mode == PM_PEER &&
			 smc->y[PB].cf_join && smc->y[PB].pc_mode == PM_PEER) {
			smc->y[PA].scrub = TRUE ;
			smc->y[PB].scrub = TRUE ;
			GO_STATE(SC5_THRU_B) ;
			break ;
		}
		break ;
	case ACTIONS(SC4_THRU_A) :
		smc->mib.p[PA].fddiPORTCurrentPath = MIB_PATH_THRU ;
		smc->mib.p[PB].fddiPORTCurrentPath = MIB_PATH_THRU ;
		smc->mib.p[PA].fddiPORTMACPlacement = 0 ;
		smc->mib.p[PB].fddiPORTMACPlacement = INDEX_MAC ;
		smc->mib.fddiSMTStationStatus = MIB_SMT_STASTA_THRU ;
		config_mux(smc,MUX_THRUA) ;		/* configure PHY mux */
		smc->r.rm_loop = FALSE ;
		smc->r.rm_join = TRUE ;
		queue_event(smc,EVENT_RMT,RM_JOIN) ;/* signal RMT */
		ACTIONS_DONE() ;
		DB_CFMN(1,"CFM : %s\n",cfm_states[smc->mib.fddiSMTCF_State],0) ;
		break ;
	case SC4_THRU_A :
		/*SC41*/
		if (smc->y[PB].wc_flag || !smc->y[PB].cf_join) {
			smc->y[PA].scrub = TRUE ;
			GO_STATE(SC9_C_WRAP_A) ;
			break ;
		}
		/*SC42*/
		else if (!smc->y[PA].cf_join || smc->y[PA].wc_flag) {
			smc->y[PB].scrub = TRUE ;
			GO_STATE(SC10_C_WRAP_B) ;
			break ;
		}
		/*SC45*/
		else if (smc->s.attach_s) {
			smc->y[PB].scrub = TRUE ;
			GO_STATE(SC5_THRU_B) ;
			break ;
		}
		break ;
	case ACTIONS(SC5_THRU_B) :
		smc->mib.p[PA].fddiPORTCurrentPath = MIB_PATH_THRU ;
		smc->mib.p[PB].fddiPORTCurrentPath = MIB_PATH_THRU ;
		smc->mib.p[PA].fddiPORTMACPlacement = INDEX_MAC ;
		smc->mib.p[PB].fddiPORTMACPlacement = 0 ;
		smc->mib.fddiSMTStationStatus = MIB_SMT_STASTA_THRU ;
		config_mux(smc,MUX_THRUB) ;		/* configure PHY mux */
		smc->r.rm_loop = FALSE ;
		smc->r.rm_join = TRUE ;
		queue_event(smc,EVENT_RMT,RM_JOIN) ;/* signal RMT */
		ACTIONS_DONE() ;
		DB_CFMN(1,"CFM : %s\n",cfm_states[smc->mib.fddiSMTCF_State],0) ;
		break ;
	case SC5_THRU_B :
		/*SC51*/
		if (!smc->y[PB].cf_join || smc->y[PB].wc_flag) {
			smc->y[PA].scrub = TRUE ;
			GO_STATE(SC9_C_WRAP_A) ;
			break ;
		}
		/*SC52*/
		else if (!smc->y[PA].cf_join || smc->y[PA].wc_flag) {
			smc->y[PB].scrub = TRUE ;
			GO_STATE(SC10_C_WRAP_B) ;
			break ;
		}
		/*SC54*/
		else if (!smc->s.attach_s) {
			smc->y[PA].scrub = TRUE ;
			GO_STATE(SC4_THRU_A) ;
			break ;
		}
		break ;
	case ACTIONS(SC11_C_WRAP_S) :
		smc->mib.p[PS].fddiPORTCurrentPath = MIB_PATH_CONCATENATED ;
		smc->mib.p[PS].fddiPORTMACPlacement = INDEX_MAC ;
		smc->mib.fddiSMTStationStatus = MIB_SMT_STASTA_CON ;
		config_mux(smc,MUX_WRAPS) ;		/* configure PHY mux */
		if (smc->y[PA].cf_loop || smc->y[PB].cf_loop) {
			smc->r.rm_join = FALSE ;
			smc->r.rm_loop = TRUE ;
			queue_event(smc,EVENT_RMT,RM_LOOP) ;/* signal RMT */
		}
		if (smc->y[PA].cf_join || smc->y[PB].cf_join) {
			smc->r.rm_loop = FALSE ;
			smc->r.rm_join = TRUE ;
			queue_event(smc,EVENT_RMT,RM_JOIN) ;/* signal RMT */
		}
		ACTIONS_DONE() ;
		DB_CFMN(1,"CFM : %s\n",cfm_states[smc->mib.fddiSMTCF_State],0) ;
		break ;
	case SC11_C_WRAP_S :
		/*SC70*/
		if ( !smc->y[PA].cf_join && !smc->y[PA].cf_loop &&
		     !smc->y[PB].cf_join && !smc->y[PB].cf_loop) {
			GO_STATE(SC0_ISOLATED) ;
			break ;
		}
		break ;
	default:
		SMT_PANIC(smc,SMT_E0106, SMT_E0106_MSG) ;
		break;
	}
}

/*
 * get MAC's input Port
 *	return :
 *		PA or PB
 */
int cfm_get_mac_input(struct s_smc *smc)
{
	return((smc->mib.fddiSMTCF_State == SC10_C_WRAP_B ||
		smc->mib.fddiSMTCF_State == SC5_THRU_B) ? PB : PA) ;
}

/*
 * get MAC's output Port
 *	return :
 *		PA or PB
 */
int cfm_get_mac_output(struct s_smc *smc)
{
	return((smc->mib.fddiSMTCF_State == SC10_C_WRAP_B ||
		smc->mib.fddiSMTCF_State == SC4_THRU_A) ? PB : PA) ;
}

static char path_iso[] = {
	0,0,	0,RES_PORT,	0,PA + INDEX_PORT,	0,PATH_ISO,
	0,0,	0,RES_MAC,	0,INDEX_MAC,		0,PATH_ISO,
	0,0,	0,RES_PORT,	0,PB + INDEX_PORT,	0,PATH_ISO
} ;

static char path_wrap_a[] = {
	0,0,	0,RES_PORT,	0,PA + INDEX_PORT,	0,PATH_PRIM,
	0,0,	0,RES_MAC,	0,INDEX_MAC,		0,PATH_PRIM,
	0,0,	0,RES_PORT,	0,PB + INDEX_PORT,	0,PATH_ISO
} ;

static char path_wrap_b[] = {
	0,0,	0,RES_PORT,	0,PB + INDEX_PORT,	0,PATH_PRIM,
	0,0,	0,RES_MAC,	0,INDEX_MAC,		0,PATH_PRIM,
	0,0,	0,RES_PORT,	0,PA + INDEX_PORT,	0,PATH_ISO
} ;

static char path_thru[] = {
	0,0,	0,RES_PORT,	0,PA + INDEX_PORT,	0,PATH_PRIM,
	0,0,	0,RES_MAC,	0,INDEX_MAC,		0,PATH_PRIM,
	0,0,	0,RES_PORT,	0,PB + INDEX_PORT,	0,PATH_PRIM
} ;

static char path_wrap_s[] = {
	0,0,	0,RES_PORT,	0,PS + INDEX_PORT,	0,PATH_PRIM,
	0,0,	0,RES_MAC,	0,INDEX_MAC,		0,PATH_PRIM,
} ;

static char path_iso_s[] = {
	0,0,	0,RES_PORT,	0,PS + INDEX_PORT,	0,PATH_ISO,
	0,0,	0,RES_MAC,	0,INDEX_MAC,		0,PATH_ISO,
} ;

int cem_build_path(struct s_smc *smc, char *to, int path_index)
{
	char	*path ;
	int	len ;

	switch (smc->mib.fddiSMTCF_State) {
	default :
	case SC0_ISOLATED :
		path = smc->s.sas ? path_iso_s : path_iso ;
		len = smc->s.sas ? sizeof(path_iso_s) :  sizeof(path_iso) ;
		break ;
	case SC9_C_WRAP_A :
		path = path_wrap_a ;
		len = sizeof(path_wrap_a) ;
		break ;
	case SC10_C_WRAP_B :
		path = path_wrap_b ;
		len = sizeof(path_wrap_b) ;
		break ;
	case SC4_THRU_A :
		path = path_thru ;
		len = sizeof(path_thru) ;
		break ;
	case SC11_C_WRAP_S :
		path = path_wrap_s ;
		len = sizeof(path_wrap_s) ;
		break ;
	}
	memcpy(to,path,len) ;

	LINT_USE(path_index);

	return(len) ;
}