예제 #1
0
static void ecm_fsm(struct s_smc *smc, int cmd)
{
	int ls_a ;			
	int ls_b ;			
	int	p ;			


	smc->mib.fddiSMTBypassPresent = sm_pm_bypass_present(smc) ;
	if (cmd == EC_CONNECT)
		smc->mib.fddiSMTRemoteDisconnectFlag = FALSE ;

	
	
	if (cmd == EC_DISCONNECT &&
		smc->mib.fddiSMTRemoteDisconnectFlag == TRUE)
		AIX_EVENT (smc, (u_long) CIO_HARD_FAIL, (u_long)
			FDDI_REMOTE_DISCONNECT, smt_get_event_word(smc),
			smt_get_error_word(smc) );

	
	if (cmd == EC_CONNECT) {
		smc->e.DisconnectFlag = FALSE ;
	}
	else if (cmd == EC_DISCONNECT) {
		smc->e.DisconnectFlag = TRUE ;
	}
	
	switch(smc->mib.fddiSMTECMState) {
	case ACTIONS(EC0_OUT) :
		smc->e.path_test = PT_PASSED ;
		smc->e.ecm_line_state = FALSE ;
		stop_ecm_timer(smc) ;
		ACTIONS_DONE() ;
		break ;
	case EC0_OUT:
		
		if (cmd == EC_CONNECT && !smc->mib.fddiSMTBypassPresent
			&& smc->e.path_test==PT_PASSED) {
			GO_STATE(EC1_IN) ;
			break ;
		}
		
		else if (cmd == EC_CONNECT && (smc->e.path_test==PT_PASSED) &&
			smc->mib.fddiSMTBypassPresent &&
			(smc->s.sas == SMT_DAS)) {
			GO_STATE(EC5_INSERT) ;
			break ;
		}
		break;
	case ACTIONS(EC1_IN) :
		stop_ecm_timer(smc) ;
		smc->e.trace_prop = 0 ;
		sm_ma_control(smc,MA_TREQ) ;
		for (p = 0 ; p < NUMPHYS ; p++)
			if (smc->mib.p[p].fddiPORTHardwarePresent)
				queue_event(smc,EVENT_PCMA+p,PC_START) ;
		ACTIONS_DONE() ;
		break ;
	case EC1_IN:
		
		if (cmd == EC_TRACE_PROP) {
			prop_actions(smc) ;
			GO_STATE(EC2_TRACE) ;
			break ;
		}
		
		else if (cmd == EC_DISCONNECT) {
			GO_STATE(EC3_LEAVE) ;
			break ;
		}
		break;
	case ACTIONS(EC2_TRACE) :
		start_ecm_timer(smc,MIB2US(smc->mib.fddiSMTTrace_MaxExpiration),
			EC_TIMEOUT_TMAX) ;
		ACTIONS_DONE() ;
		break ;
	case EC2_TRACE :
		
		if (cmd == EC_TRACE_PROP) {
			prop_actions(smc) ;
			GO_STATE(EC2_TRACE) ;
			break ;
		}
		
		else if (cmd == EC_DISCONNECT) {
			smc->e.path_test = PT_EXITING ;
			GO_STATE(EC3_LEAVE) ;
			break ;
		}
		
		else if (smc->e.path_test == PT_PENDING) {
			GO_STATE(EC3_LEAVE) ;
			break ;
		}
		
		else if (cmd == EC_TIMEOUT_TMAX) {
			
			
			AIX_EVENT(smc, (u_long) FDDI_RING_STATUS,
				(u_long) FDDI_SMT_ERROR, (u_long)
				FDDI_TRACE_MAX, smt_get_error_word(smc));
			smc->e.path_test = PT_PENDING ;
			GO_STATE(EC3_LEAVE) ;
			break ;
		}
		break ;
	case ACTIONS(EC3_LEAVE) :
		start_ecm_timer(smc,smc->s.ecm_td_min,EC_TIMEOUT_TD) ;
		for (p = 0 ; p < NUMPHYS ; p++)
			queue_event(smc,EVENT_PCMA+p,PC_STOP) ;
		ACTIONS_DONE() ;
		break ;
	case EC3_LEAVE:
		
		if (cmd == EC_TIMEOUT_TD && !smc->mib.fddiSMTBypassPresent &&
			(smc->e.path_test != PT_PENDING)) {
			GO_STATE(EC0_OUT) ;
			break ;
		}
		
		else if (cmd == EC_TIMEOUT_TD &&
			(smc->e.path_test == PT_PENDING)) {
			GO_STATE(EC4_PATH_TEST) ;
			break ;
		}
		
		else if (cmd == EC_CONNECT && smc->e.path_test == PT_PASSED) {
			GO_STATE(EC1_IN) ;
			break ;
		}
		
		else if (cmd == EC_DISCONNECT &&
			smc->e.path_test == PT_PENDING) {
			smc->e.path_test = PT_EXITING ;
		}
		
		else if (cmd == EC_TIMEOUT_TD &&
			smc->mib.fddiSMTBypassPresent &&
			smc->e.path_test != PT_PENDING) {
			GO_STATE(EC7_DEINSERT) ;
			break ;
		}
		break ;
	case ACTIONS(EC4_PATH_TEST) :
		stop_ecm_timer(smc) ;
		smc->e.path_test = PT_TESTING ;
		start_ecm_timer(smc,smc->s.ecm_test_done,EC_TEST_DONE) ;
		
		ACTIONS_DONE() ;
		break ;
	case EC4_PATH_TEST :
		
		if (cmd == EC_TEST_DONE)
			smc->e.path_test = PT_PASSED ;

		if (smc->e.path_test == PT_FAILED)
			RS_SET(smc,RS_PATHTEST) ;

		
		if (smc->e.path_test == PT_FAILED &&
			!smc->mib.fddiSMTBypassPresent) {
			GO_STATE(EC0_OUT) ;
			break ;
		}
		
		else if (cmd == EC_DISCONNECT &&
			!smc->mib.fddiSMTBypassPresent) {
			GO_STATE(EC0_OUT) ;
			break ;
		}
		
		else if (smc->e.path_test == PT_PASSED) {
			GO_STATE(EC1_IN) ;
			break ;
		}
		
		else if (smc->e.path_test == PT_FAILED &&
			smc->mib.fddiSMTBypassPresent) {
			GO_STATE(EC7_DEINSERT) ;
			break ;
		}
		
		else if (cmd == EC_DISCONNECT &&
			smc->mib.fddiSMTBypassPresent) {
			GO_STATE(EC7_DEINSERT) ;
			break ;
		}
		break ;
	case ACTIONS(EC5_INSERT) :
		sm_pm_bypass_req(smc,BP_INSERT);
		start_ecm_timer(smc,smc->s.ecm_in_max,EC_TIMEOUT_INMAX) ;
		ACTIONS_DONE() ;
		break ;
	case EC5_INSERT :
		
		if (cmd == EC_TIMEOUT_INMAX) {
			GO_STATE(EC6_CHECK) ;
			break ;
		}
		
		else if (cmd == EC_DISCONNECT) {
			GO_STATE(EC7_DEINSERT) ;
			break ;
		}
		break ;
	case ACTIONS(EC6_CHECK) :
		start_ecm_timer(smc,smc->s.ecm_check_poll,0) ;
		smc->e.ecm_line_state = TRUE ;	
		(void) sm_pm_ls_latch(smc,PA,1) ; 
		(void) sm_pm_ls_latch(smc,PB,1) ; 
		ACTIONS_DONE() ;
		break ;
	case EC6_CHECK :
		ls_a = sm_pm_get_ls(smc,PA) ;
		ls_b = sm_pm_get_ls(smc,PB) ;

		
		if (((ls_a == PC_QLS) || (ls_a == PC_HLS)) &&
		    ((ls_b == PC_QLS) || (ls_b == PC_HLS)) ) {
			smc->e.sb_flag = FALSE ;
			smc->e.ecm_line_state = FALSE ;
			GO_STATE(EC1_IN) ;
			break ;
		}
		
		else if (!smc->e.sb_flag &&
			 (((ls_a == PC_ILS) && (ls_b == PC_QLS)) ||
			  ((ls_a == PC_QLS) && (ls_b == PC_ILS)))){
			smc->e.sb_flag = TRUE ;
			DB_ECMN(1,"ECM : EC6_CHECK - stuck bypass\n",0,0) ;
			AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
				FDDI_SMT_ERROR, (u_long) FDDI_BYPASS_STUCK,
				smt_get_error_word(smc));
		}
		
		else if (cmd == EC_DISCONNECT) {
			smc->e.ecm_line_state = FALSE ;
			GO_STATE(EC7_DEINSERT) ;
			break ;
		}
		else {
			start_ecm_timer(smc,smc->s.ecm_check_poll,0) ;
		}
		break ;
	case ACTIONS(EC7_DEINSERT) :
		sm_pm_bypass_req(smc,BP_DEINSERT);
		start_ecm_timer(smc,smc->s.ecm_i_max,EC_TIMEOUT_IMAX) ;
		ACTIONS_DONE() ;
		break ;
	case EC7_DEINSERT:
		
		if (cmd == EC_TIMEOUT_IMAX) {
			GO_STATE(EC0_OUT) ;
			break ;
		}
		
		else if (cmd == EC_CONNECT && smc->e.path_test == PT_PASSED) {
			GO_STATE(EC5_INSERT) ;
			break ;
		}
		break;
	default:
		SMT_PANIC(smc,SMT_E0107, SMT_E0107_MSG) ;
		break;
	}
}
예제 #2
0
파일: ecm.c 프로젝트: huoyingdk/linux
/*
	process ECM event
*/
static void ecm_fsm(struct s_smc *smc, int cmd)
{
	int ls_a ;			/* current line state PHY A */
	int ls_b ;			/* current line state PHY B */
	int	p ;			/* ports */


	smc->mib.fddiSMTBypassPresent = sm_pm_bypass_present(smc) ;
	if (cmd == EC_CONNECT)
		smc->mib.fddiSMTRemoteDisconnectFlag = FALSE ;

	/* For AIX event notification: */
	/* Is a disconnect  command remotely issued ? */
	if (cmd == EC_DISCONNECT &&
		smc->mib.fddiSMTRemoteDisconnectFlag == TRUE)
		AIX_EVENT (smc, (u_long) CIO_HARD_FAIL, (u_long)
			FDDI_REMOTE_DISCONNECT, smt_get_event_word(smc),
			smt_get_error_word(smc) );

	/*jd 05-Aug-1999 Bug #10419 "Port Disconnect fails at Dup MAc Cond."*/
	if (cmd == EC_CONNECT) {
		smc->e.DisconnectFlag = FALSE ;
	}
	else if (cmd == EC_DISCONNECT) {
		smc->e.DisconnectFlag = TRUE ;
	}
	
	switch(smc->mib.fddiSMTECMState) {
	case ACTIONS(EC0_OUT) :
		/*
		 * We do not perform a path test
		 */
		smc->e.path_test = PT_PASSED ;
		smc->e.ecm_line_state = FALSE ;
		stop_ecm_timer(smc) ;
		ACTIONS_DONE() ;
		break ;
	case EC0_OUT:
		/*EC01*/
		if (cmd == EC_CONNECT && !smc->mib.fddiSMTBypassPresent
			&& smc->e.path_test==PT_PASSED) {
			GO_STATE(EC1_IN) ;
			break ;
		}
		/*EC05*/
		else if (cmd == EC_CONNECT && (smc->e.path_test==PT_PASSED) &&
			smc->mib.fddiSMTBypassPresent &&
			(smc->s.sas == SMT_DAS)) {
			GO_STATE(EC5_INSERT) ;
			break ;
		}
		break;
	case ACTIONS(EC1_IN) :
		stop_ecm_timer(smc) ;
		smc->e.trace_prop = 0 ;
		sm_ma_control(smc,MA_TREQ) ;
		for (p = 0 ; p < NUMPHYS ; p++)
			if (smc->mib.p[p].fddiPORTHardwarePresent)
				queue_event(smc,EVENT_PCMA+p,PC_START) ;
		ACTIONS_DONE() ;
		break ;
	case EC1_IN:
		/*EC12*/
		if (cmd == EC_TRACE_PROP) {
			prop_actions(smc) ;
			GO_STATE(EC2_TRACE) ;
			break ;
		}
		/*EC13*/
		else if (cmd == EC_DISCONNECT) {
			GO_STATE(EC3_LEAVE) ;
			break ;
		}
		break;
	case ACTIONS(EC2_TRACE) :
		start_ecm_timer(smc,MIB2US(smc->mib.fddiSMTTrace_MaxExpiration),
			EC_TIMEOUT_TMAX) ;
		ACTIONS_DONE() ;
		break ;
	case EC2_TRACE :
		/*EC22*/
		if (cmd == EC_TRACE_PROP) {
			prop_actions(smc) ;
			GO_STATE(EC2_TRACE) ;
			break ;
		}
		/*EC23a*/
		else if (cmd == EC_DISCONNECT) {
			smc->e.path_test = PT_EXITING ;
			GO_STATE(EC3_LEAVE) ;
			break ;
		}
		/*EC23b*/
		else if (smc->e.path_test == PT_PENDING) {
			GO_STATE(EC3_LEAVE) ;
			break ;
		}
		/*EC23c*/
		else if (cmd == EC_TIMEOUT_TMAX) {
			/* Trace_Max is expired */
			/* -> send AIX_EVENT */
			AIX_EVENT(smc, (u_long) FDDI_RING_STATUS,
				(u_long) FDDI_SMT_ERROR, (u_long)
				FDDI_TRACE_MAX, smt_get_error_word(smc));
			smc->e.path_test = PT_PENDING ;
			GO_STATE(EC3_LEAVE) ;
			break ;
		}
		break ;
	case ACTIONS(EC3_LEAVE) :
		start_ecm_timer(smc,smc->s.ecm_td_min,EC_TIMEOUT_TD) ;
		for (p = 0 ; p < NUMPHYS ; p++)
			queue_event(smc,EVENT_PCMA+p,PC_STOP) ;
		ACTIONS_DONE() ;
		break ;
	case EC3_LEAVE:
		/*EC30*/
		if (cmd == EC_TIMEOUT_TD && !smc->mib.fddiSMTBypassPresent &&
			(smc->e.path_test != PT_PENDING)) {
			GO_STATE(EC0_OUT) ;
			break ;
		}
		/*EC34*/
		else if (cmd == EC_TIMEOUT_TD &&
			(smc->e.path_test == PT_PENDING)) {
			GO_STATE(EC4_PATH_TEST) ;
			break ;
		}
		/*EC31*/
		else if (cmd == EC_CONNECT && smc->e.path_test == PT_PASSED) {
			GO_STATE(EC1_IN) ;
			break ;
		}
		/*EC33*/
		else if (cmd == EC_DISCONNECT &&
			smc->e.path_test == PT_PENDING) {
			smc->e.path_test = PT_EXITING ;
			/*
			 * stay in state - state will be left via timeout
			 */
		}
		/*EC37*/
		else if (cmd == EC_TIMEOUT_TD &&
			smc->mib.fddiSMTBypassPresent &&
			smc->e.path_test != PT_PENDING) {
			GO_STATE(EC7_DEINSERT) ;
			break ;
		}
		break ;
	case ACTIONS(EC4_PATH_TEST) :
		stop_ecm_timer(smc) ;
		smc->e.path_test = PT_TESTING ;
		start_ecm_timer(smc,smc->s.ecm_test_done,EC_TEST_DONE) ;
		/* now perform path test ... just a simulation */
		ACTIONS_DONE() ;
		break ;
	case EC4_PATH_TEST :
		/* path test done delay */
		if (cmd == EC_TEST_DONE)
			smc->e.path_test = PT_PASSED ;

		if (smc->e.path_test == PT_FAILED)
			RS_SET(smc,RS_PATHTEST) ;

		/*EC40a*/
		if (smc->e.path_test == PT_FAILED &&
			!smc->mib.fddiSMTBypassPresent) {
			GO_STATE(EC0_OUT) ;
			break ;
		}
		/*EC40b*/
		else if (cmd == EC_DISCONNECT &&
			!smc->mib.fddiSMTBypassPresent) {
			GO_STATE(EC0_OUT) ;
			break ;
		}
		/*EC41*/
		else if (smc->e.path_test == PT_PASSED) {
			GO_STATE(EC1_IN) ;
			break ;
		}
		/*EC47a*/
		else if (smc->e.path_test == PT_FAILED &&
			smc->mib.fddiSMTBypassPresent) {
			GO_STATE(EC7_DEINSERT) ;
			break ;
		}
		/*EC47b*/
		else if (cmd == EC_DISCONNECT &&
			smc->mib.fddiSMTBypassPresent) {
			GO_STATE(EC7_DEINSERT) ;
			break ;
		}
		break ;
	case ACTIONS(EC5_INSERT) :
		sm_pm_bypass_req(smc,BP_INSERT);
		start_ecm_timer(smc,smc->s.ecm_in_max,EC_TIMEOUT_INMAX) ;
예제 #3
0
파일: ecm.c 프로젝트: 274914765/C
/*
    process ECM event
*/
static void ecm_fsm(struct s_smc *smc, int cmd)
{
    int ls_a ;            /* current line state PHY A */
    int ls_b ;            /* current line state PHY B */
    int    p ;            /* ports */


    smc->mib.fddiSMTBypassPresent = sm_pm_bypass_present(smc) ;
    if (cmd == EC_CONNECT)
        smc->mib.fddiSMTRemoteDisconnectFlag = FALSE ;

    /* For AIX event notification: */
    /* Is a disconnect  command remotely issued ? */
    if (cmd == EC_DISCONNECT &&
        smc->mib.fddiSMTRemoteDisconnectFlag == TRUE)
        AIX_EVENT (smc, (u_long) CIO_HARD_FAIL, (u_long)
            FDDI_REMOTE_DISCONNECT, smt_get_event_word(smc),
            smt_get_error_word(smc) );

    /*jd 05-Aug-1999 Bug #10419 "Port Disconnect fails at Dup MAc Cond."*/
    if (cmd == EC_CONNECT) {
        smc->e.DisconnectFlag = FALSE ;
    }
    else if (cmd == EC_DISCONNECT) {
        smc->e.DisconnectFlag = TRUE ;
    }
    
    switch(smc->mib.fddiSMTECMState) {
    case ACTIONS(EC0_OUT) :
        /*
         * We do not perform a path test
         */
        smc->e.path_test = PT_PASSED ;
        smc->e.ecm_line_state = FALSE ;
        stop_ecm_timer(smc) ;
        ACTIONS_DONE() ;
        break ;
    case EC0_OUT:
        /*EC01*/
        if (cmd == EC_CONNECT && !smc->mib.fddiSMTBypassPresent
            && smc->e.path_test==PT_PASSED) {
            GO_STATE(EC1_IN) ;
            break ;
        }
        /*EC05*/
        else if (cmd == EC_CONNECT && (smc->e.path_test==PT_PASSED) &&
            smc->mib.fddiSMTBypassPresent &&
            (smc->s.sas == SMT_DAS)) {
            GO_STATE(EC5_INSERT) ;
            break ;
        }
        break;
    case ACTIONS(EC1_IN) :
        stop_ecm_timer(smc) ;
        smc->e.trace_prop = 0 ;
        sm_ma_control(smc,MA_TREQ) ;
        for (p = 0 ; p < NUMPHYS ; p++)
            if (smc->mib.p[p].fddiPORTHardwarePresent)
                queue_event(smc,EVENT_PCMA+p,PC_START) ;
        ACTIONS_DONE() ;
        break ;
    case EC1_IN:
        /*EC12*/
        if (cmd == EC_TRACE_PROP) {
            prop_actions(smc) ;
            GO_STATE(EC2_TRACE) ;
            break ;
        }
        /*EC13*/
        else if (cmd == EC_DISCONNECT) {
            GO_STATE(EC3_LEAVE) ;
            break ;
        }
        break;
    case ACTIONS(EC2_TRACE) :
        start_ecm_timer(smc,MIB2US(smc->mib.fddiSMTTrace_MaxExpiration),
            EC_TIMEOUT_TMAX) ;
        ACTIONS_DONE() ;
        break ;
    case EC2_TRACE :
        /*EC22*/
        if (cmd == EC_TRACE_PROP) {
            prop_actions(smc) ;
            GO_STATE(EC2_TRACE) ;
            break ;
        }
        /*EC23a*/
        else if (cmd == EC_DISCONNECT) {
            smc->e.path_test = PT_EXITING ;
            GO_STATE(EC3_LEAVE) ;
            break ;
        }
        /*EC23b*/
        else if (smc->e.path_test == PT_PENDING) {
            GO_STATE(EC3_LEAVE) ;
            break ;
        }
        /*EC23c*/
        else if (cmd == EC_TIMEOUT_TMAX) {
            /* Trace_Max is expired */
            /* -> send AIX_EVENT */
            AIX_EVENT(smc, (u_long) FDDI_RING_STATUS,
                (u_long) FDDI_SMT_ERROR, (u_long)
                FDDI_TRACE_MAX, smt_get_error_word(smc));
            smc->e.path_test = PT_PENDING ;
            GO_STATE(EC3_LEAVE) ;
            break ;
        }
        break ;
    case ACTIONS(EC3_LEAVE) :
        start_ecm_timer(smc,smc->s.ecm_td_min,EC_TIMEOUT_TD) ;
        for (p = 0 ; p < NUMPHYS ; p++)
            queue_event(smc,EVENT_PCMA+p,PC_STOP) ;
        ACTIONS_DONE() ;
        break ;
    case EC3_LEAVE:
        /*EC30*/
        if (cmd == EC_TIMEOUT_TD && !smc->mib.fddiSMTBypassPresent &&
            (smc->e.path_test != PT_PENDING)) {
            GO_STATE(EC0_OUT) ;
            break ;
        }
        /*EC34*/
        else if (cmd == EC_TIMEOUT_TD &&
            (smc->e.path_test == PT_PENDING)) {
            GO_STATE(EC4_PATH_TEST) ;
            break ;
        }
        /*EC31*/
        else if (cmd == EC_CONNECT && smc->e.path_test == PT_PASSED) {
            GO_STATE(EC1_IN) ;
            break ;
        }
        /*EC33*/
        else if (cmd == EC_DISCONNECT &&
            smc->e.path_test == PT_PENDING) {
            smc->e.path_test = PT_EXITING ;
            /*
             * stay in state - state will be left via timeout
             */
        }
        /*EC37*/
        else if (cmd == EC_TIMEOUT_TD &&
            smc->mib.fddiSMTBypassPresent &&
            smc->e.path_test != PT_PENDING) {
            GO_STATE(EC7_DEINSERT) ;
            break ;
        }
        break ;
    case ACTIONS(EC4_PATH_TEST) :
        stop_ecm_timer(smc) ;
        smc->e.path_test = PT_TESTING ;
        start_ecm_timer(smc,smc->s.ecm_test_done,EC_TEST_DONE) ;
        /* now perform path test ... just a simulation */
        ACTIONS_DONE() ;
        break ;
    case EC4_PATH_TEST :
        /* path test done delay */
        if (cmd == EC_TEST_DONE)
            smc->e.path_test = PT_PASSED ;

        if (smc->e.path_test == PT_FAILED)
            RS_SET(smc,RS_PATHTEST) ;

        /*EC40a*/
        if (smc->e.path_test == PT_FAILED &&
            !smc->mib.fddiSMTBypassPresent) {
            GO_STATE(EC0_OUT) ;
            break ;
        }
        /*EC40b*/
        else if (cmd == EC_DISCONNECT &&
            !smc->mib.fddiSMTBypassPresent) {
            GO_STATE(EC0_OUT) ;
            break ;
        }
        /*EC41*/
        else if (smc->e.path_test == PT_PASSED) {
            GO_STATE(EC1_IN) ;
            break ;
        }
        /*EC47a*/
        else if (smc->e.path_test == PT_FAILED &&
            smc->mib.fddiSMTBypassPresent) {
            GO_STATE(EC7_DEINSERT) ;
            break ;
        }
        /*EC47b*/
        else if (cmd == EC_DISCONNECT &&
            smc->mib.fddiSMTBypassPresent) {
            GO_STATE(EC7_DEINSERT) ;
            break ;
        }
        break ;
    case ACTIONS(EC5_INSERT) :
        sm_pm_bypass_req(smc,BP_INSERT);
        start_ecm_timer(smc,smc->s.ecm_in_max,EC_TIMEOUT_INMAX) ;
        ACTIONS_DONE() ;
        break ;
    case EC5_INSERT :
        /*EC56*/
        if (cmd == EC_TIMEOUT_INMAX) {
            GO_STATE(EC6_CHECK) ;
            break ;
        }
        /*EC57*/
        else if (cmd == EC_DISCONNECT) {
            GO_STATE(EC7_DEINSERT) ;
            break ;
        }
        break ;
    case ACTIONS(EC6_CHECK) :
        /*
         * in EC6_CHECK, we *POLL* the line state !
         * check whether both bypass switches have switched.
         */
        start_ecm_timer(smc,smc->s.ecm_check_poll,0) ;
        smc->e.ecm_line_state = TRUE ;    /* flag to pcm: report Q/HLS */
        (void) sm_pm_ls_latch(smc,PA,1) ; /* enable line state latch */
        (void) sm_pm_ls_latch(smc,PB,1) ; /* enable line state latch */
        ACTIONS_DONE() ;
        break ;
    case EC6_CHECK :
        ls_a = sm_pm_get_ls(smc,PA) ;
        ls_b = sm_pm_get_ls(smc,PB) ;

        /*EC61*/
        if (((ls_a == PC_QLS) || (ls_a == PC_HLS)) &&
            ((ls_b == PC_QLS) || (ls_b == PC_HLS)) ) {
            smc->e.sb_flag = FALSE ;
            smc->e.ecm_line_state = FALSE ;
            GO_STATE(EC1_IN) ;
            break ;
        }
        /*EC66*/
        else if (!smc->e.sb_flag &&
             (((ls_a == PC_ILS) && (ls_b == PC_QLS)) ||
              ((ls_a == PC_QLS) && (ls_b == PC_ILS)))){
            smc->e.sb_flag = TRUE ;
            DB_ECMN(1,"ECM : EC6_CHECK - stuck bypass\n",0,0) ;
            AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
                FDDI_SMT_ERROR, (u_long) FDDI_BYPASS_STUCK,
                smt_get_error_word(smc));
        }
        /*EC67*/
        else if (cmd == EC_DISCONNECT) {
            smc->e.ecm_line_state = FALSE ;
            GO_STATE(EC7_DEINSERT) ;
            break ;
        }
        else {
            /*
             * restart poll
             */
            start_ecm_timer(smc,smc->s.ecm_check_poll,0) ;
        }
        break ;
    case ACTIONS(EC7_DEINSERT) :
        sm_pm_bypass_req(smc,BP_DEINSERT);
        start_ecm_timer(smc,smc->s.ecm_i_max,EC_TIMEOUT_IMAX) ;
        ACTIONS_DONE() ;
        break ;
    case EC7_DEINSERT:
        /*EC70*/
        if (cmd == EC_TIMEOUT_IMAX) {
            GO_STATE(EC0_OUT) ;
            break ;
        }
        /*EC75*/
        else if (cmd == EC_CONNECT && smc->e.path_test == PT_PASSED) {
            GO_STATE(EC5_INSERT) ;
            break ;
        }
        break;
    default:
        SMT_PANIC(smc,SMT_E0107, SMT_E0107_MSG) ;
        break;
    }
}