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-rw-r--r--drivers/net/skfp/pcmplc.c2024
1 files changed, 2024 insertions, 0 deletions
diff --git a/drivers/net/skfp/pcmplc.c b/drivers/net/skfp/pcmplc.c
new file mode 100644
index 0000000..571f055
--- /dev/null
+++ b/drivers/net/skfp/pcmplc.c
@@ -0,0 +1,2024 @@
+/******************************************************************************
+ *
+ * (C)Copyright 1998,1999 SysKonnect,
+ * a business unit of Schneider & Koch & Co. Datensysteme GmbH.
+ *
+ * See the file "skfddi.c" for further information.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * The information in this file is provided "AS IS" without warranty.
+ *
+ ******************************************************************************/
+
+/*
+ PCM
+ Physical Connection Management
+*/
+
+/*
+ * Hardware independent state machine implemantation
+ * The following external SMT functions are referenced :
+ *
+ * queue_event()
+ * smt_timer_start()
+ * smt_timer_stop()
+ *
+ * The following external HW dependent functions are referenced :
+ * sm_pm_control()
+ * sm_ph_linestate()
+ * sm_pm_ls_latch()
+ *
+ * The following HW dependent events are required :
+ * PC_QLS
+ * PC_ILS
+ * PC_HLS
+ * PC_MLS
+ * PC_NSE
+ * PC_LEM
+ *
+ */
+
+
+#include "h/types.h"
+#include "h/fddi.h"
+#include "h/smc.h"
+#include "h/supern_2.h"
+#define KERNEL
+#include "h/smtstate.h"
+
+#ifndef lint
+static const char ID_sccs[] = "@(#)pcmplc.c 2.55 99/08/05 (C) SK " ;
+#endif
+
+#ifdef FDDI_MIB
+extern int snmp_fddi_trap(
+#ifdef ANSIC
+struct s_smc * smc, int type, int index
+#endif
+);
+#endif
+#ifdef CONCENTRATOR
+extern int plc_is_installed(
+#ifdef ANSIC
+struct s_smc *smc ,
+int p
+#endif
+) ;
+#endif
+/*
+ * FSM Macros
+ */
+#define AFLAG (0x20)
+#define GO_STATE(x) (mib->fddiPORTPCMState = (x)|AFLAG)
+#define ACTIONS_DONE() (mib->fddiPORTPCMState &= ~AFLAG)
+#define ACTIONS(x) (x|AFLAG)
+
+/*
+ * PCM states
+ */
+#define PC0_OFF 0
+#define PC1_BREAK 1
+#define PC2_TRACE 2
+#define PC3_CONNECT 3
+#define PC4_NEXT 4
+#define PC5_SIGNAL 5
+#define PC6_JOIN 6
+#define PC7_VERIFY 7
+#define PC8_ACTIVE 8
+#define PC9_MAINT 9
+
+#ifdef DEBUG
+/*
+ * symbolic state names
+ */
+static const char * const pcm_states[] = {
+ "PC0_OFF","PC1_BREAK","PC2_TRACE","PC3_CONNECT","PC4_NEXT",
+ "PC5_SIGNAL","PC6_JOIN","PC7_VERIFY","PC8_ACTIVE","PC9_MAINT"
+} ;
+
+/*
+ * symbolic event names
+ */
+static const char * const pcm_events[] = {
+ "NONE","PC_START","PC_STOP","PC_LOOP","PC_JOIN","PC_SIGNAL",
+ "PC_REJECT","PC_MAINT","PC_TRACE","PC_PDR",
+ "PC_ENABLE","PC_DISABLE",
+ "PC_QLS","PC_ILS","PC_MLS","PC_HLS","PC_LS_PDR","PC_LS_NONE",
+ "PC_TIMEOUT_TB_MAX","PC_TIMEOUT_TB_MIN",
+ "PC_TIMEOUT_C_MIN","PC_TIMEOUT_T_OUT",
+ "PC_TIMEOUT_TL_MIN","PC_TIMEOUT_T_NEXT","PC_TIMEOUT_LCT",
+ "PC_NSE","PC_LEM"
+} ;
+#endif
+
+#ifdef MOT_ELM
+/*
+ * PCL-S control register
+ * this register in the PLC-S controls the scrambling parameters
+ */
+#define PLCS_CONTROL_C_U 0
+#define PLCS_CONTROL_C_S (PL_C_SDOFF_ENABLE | PL_C_SDON_ENABLE | \
+ PL_C_CIPHER_ENABLE)
+#define PLCS_FASSERT_U 0
+#define PLCS_FASSERT_S 0xFd76 /* 52.0 us */
+#define PLCS_FDEASSERT_U 0
+#define PLCS_FDEASSERT_S 0
+#else /* nMOT_ELM */
+/*
+ * PCL-S control register
+ * this register in the PLC-S controls the scrambling parameters
+ * can be patched for ANSI compliance if standard changes
+ */
+static const u_char plcs_control_c_u[17] = "PLC_CNTRL_C_U=\0\0" ;
+static const u_char plcs_control_c_s[17] = "PLC_CNTRL_C_S=\01\02" ;
+
+#define PLCS_CONTROL_C_U (plcs_control_c_u[14] | (plcs_control_c_u[15]<<8))
+#define PLCS_CONTROL_C_S (plcs_control_c_s[14] | (plcs_control_c_s[15]<<8))
+#endif /* nMOT_ELM */
+
+/*
+ * external vars
+ */
+/* struct definition see 'cmtdef.h' (also used by CFM) */
+
+#define PS_OFF 0
+#define PS_BIT3 1
+#define PS_BIT4 2
+#define PS_BIT7 3
+#define PS_LCT 4
+#define PS_BIT8 5
+#define PS_JOIN 6
+#define PS_ACTIVE 7
+
+#define LCT_LEM_MAX 255
+
+/*
+ * PLC timing parameter
+ */
+
+#define PLC_MS(m) ((int)((0x10000L-(m*100000L/2048))))
+#define SLOW_TL_MIN PLC_MS(6)
+#define SLOW_C_MIN PLC_MS(10)
+
+static const struct plt {
+ int timer ; /* relative plc timer address */
+ int para ; /* default timing parameters */
+} pltm[] = {
+ { PL_C_MIN, SLOW_C_MIN }, /* min t. to remain Connect State */
+ { PL_TL_MIN, SLOW_TL_MIN }, /* min t. to transmit a Line State */
+ { PL_TB_MIN, TP_TB_MIN }, /* min break time */
+ { PL_T_OUT, TP_T_OUT }, /* Signaling timeout */
+ { PL_LC_LENGTH, TP_LC_LENGTH }, /* Link Confidence Test Time */
+ { PL_T_SCRUB, TP_T_SCRUB }, /* Scrub Time == MAC TVX time ! */
+ { PL_NS_MAX, TP_NS_MAX }, /* max t. that noise is tolerated */
+ { 0,0 }
+} ;
+
+/*
+ * interrupt mask
+ */
+#ifdef SUPERNET_3
+/*
+ * Do we need the EBUF error during signaling, too, to detect SUPERNET_3
+ * PLL bug?
+ */
+static int plc_imsk_na = PL_PCM_CODE | PL_TRACE_PROP | PL_PCM_BREAK |
+ PL_PCM_ENABLED | PL_SELF_TEST | PL_EBUF_ERR;
+#else /* SUPERNET_3 */
+/*
+ * We do NOT need the elasticity buffer error during signaling.
+ */
+static int plc_imsk_na = PL_PCM_CODE | PL_TRACE_PROP | PL_PCM_BREAK |
+ PL_PCM_ENABLED | PL_SELF_TEST ;
+#endif /* SUPERNET_3 */
+static int plc_imsk_act = PL_PCM_CODE | PL_TRACE_PROP | PL_PCM_BREAK |
+ PL_PCM_ENABLED | PL_SELF_TEST | PL_EBUF_ERR;
+
+/* external functions */
+void all_selection_criteria(struct s_smc *smc);
+
+/* internal functions */
+static void pcm_fsm(struct s_smc *smc, struct s_phy *phy, int cmd);
+static void pc_rcode_actions(struct s_smc *smc, int bit, struct s_phy *phy);
+static void pc_tcode_actions(struct s_smc *smc, const int bit, struct s_phy *phy);
+static void reset_lem_struct(struct s_phy *phy);
+static void plc_init(struct s_smc *smc, int p);
+static void sm_ph_lem_start(struct s_smc *smc, int np, int threshold);
+static void sm_ph_lem_stop(struct s_smc *smc, int np);
+static void sm_ph_linestate(struct s_smc *smc, int phy, int ls);
+static void real_init_plc(struct s_smc *smc);
+
+/*
+ * SMT timer interface
+ * start PCM timer 0
+ */
+static void start_pcm_timer0(struct s_smc *smc, u_long value, int event,
+ struct s_phy *phy)
+{
+ phy->timer0_exp = FALSE ; /* clear timer event flag */
+ smt_timer_start(smc,&phy->pcm_timer0,value,
+ EV_TOKEN(EVENT_PCM+phy->np,event)) ;
+}
+/*
+ * SMT timer interface
+ * stop PCM timer 0
+ */
+static void stop_pcm_timer0(struct s_smc *smc, struct s_phy *phy)
+{
+ if (phy->pcm_timer0.tm_active)
+ smt_timer_stop(smc,&phy->pcm_timer0) ;
+}
+
+/*
+ init PCM state machine (called by driver)
+ clear all PCM vars and flags
+*/
+void pcm_init(struct s_smc *smc)
+{
+ int i ;
+ int np ;
+ struct s_phy *phy ;
+ struct fddi_mib_p *mib ;
+
+ for (np = 0,phy = smc->y ; np < NUMPHYS ; np++,phy++) {
+ /* Indicates the type of PHY being used */
+ mib = phy->mib ;
+ mib->fddiPORTPCMState = ACTIONS(PC0_OFF) ;
+ phy->np = np ;
+ switch (smc->s.sas) {
+#ifdef CONCENTRATOR
+ case SMT_SAS :
+ mib->fddiPORTMy_Type = (np == PS) ? TS : TM ;
+ break ;
+ case SMT_DAS :
+ mib->fddiPORTMy_Type = (np == PA) ? TA :
+ (np == PB) ? TB : TM ;
+ break ;
+ case SMT_NAC :
+ mib->fddiPORTMy_Type = TM ;
+ break;
+#else
+ case SMT_SAS :
+ mib->fddiPORTMy_Type = (np == PS) ? TS : TNONE ;
+ mib->fddiPORTHardwarePresent = (np == PS) ? TRUE :
+ FALSE ;
+#ifndef SUPERNET_3
+ smc->y[PA].mib->fddiPORTPCMState = PC0_OFF ;
+#else
+ smc->y[PB].mib->fddiPORTPCMState = PC0_OFF ;
+#endif
+ break ;
+ case SMT_DAS :
+ mib->fddiPORTMy_Type = (np == PB) ? TB : TA ;
+ break ;
+#endif
+ }
+ /*
+ * set PMD-type
+ */
+ phy->pmd_scramble = 0 ;
+ switch (phy->pmd_type[PMD_SK_PMD]) {
+ case 'P' :
+ mib->fddiPORTPMDClass = MIB_PMDCLASS_MULTI ;
+ break ;
+ case 'L' :
+ mib->fddiPORTPMDClass = MIB_PMDCLASS_LCF ;
+ break ;
+ case 'D' :
+ mib->fddiPORTPMDClass = MIB_PMDCLASS_TP ;
+ break ;
+ case 'S' :
+ mib->fddiPORTPMDClass = MIB_PMDCLASS_TP ;
+ phy->pmd_scramble = TRUE ;
+ break ;
+ case 'U' :
+ mib->fddiPORTPMDClass = MIB_PMDCLASS_TP ;
+ phy->pmd_scramble = TRUE ;
+ break ;
+ case '1' :
+ mib->fddiPORTPMDClass = MIB_PMDCLASS_SINGLE1 ;
+ break ;
+ case '2' :
+ mib->fddiPORTPMDClass = MIB_PMDCLASS_SINGLE2 ;
+ break ;
+ case '3' :
+ mib->fddiPORTPMDClass = MIB_PMDCLASS_SINGLE2 ;
+ break ;
+ case '4' :
+ mib->fddiPORTPMDClass = MIB_PMDCLASS_SINGLE1 ;
+ break ;
+ case 'H' :
+ mib->fddiPORTPMDClass = MIB_PMDCLASS_UNKNOWN ;
+ break ;
+ case 'I' :
+ mib->fddiPORTPMDClass = MIB_PMDCLASS_TP ;
+ break ;
+ case 'G' :
+ mib->fddiPORTPMDClass = MIB_PMDCLASS_TP ;
+ break ;
+ default:
+ mib->fddiPORTPMDClass = MIB_PMDCLASS_UNKNOWN ;
+ break ;
+ }
+ /*
+ * A and B port can be on primary and secondary path
+ */
+ switch (mib->fddiPORTMy_Type) {
+ case TA :
+ mib->fddiPORTAvailablePaths |= MIB_PATH_S ;
+ mib->fddiPORTRequestedPaths[1] = MIB_P_PATH_LOCAL ;
+ mib->fddiPORTRequestedPaths[2] =
+ MIB_P_PATH_LOCAL |
+ MIB_P_PATH_CON_ALTER |
+ MIB_P_PATH_SEC_PREFER ;
+ mib->fddiPORTRequestedPaths[3] =
+ MIB_P_PATH_LOCAL |
+ MIB_P_PATH_CON_ALTER |
+ MIB_P_PATH_SEC_PREFER |
+ MIB_P_PATH_THRU ;
+ break ;
+ case TB :
+ mib->fddiPORTAvailablePaths |= MIB_PATH_S ;
+ mib->fddiPORTRequestedPaths[1] = MIB_P_PATH_LOCAL ;
+ mib->fddiPORTRequestedPaths[2] =
+ MIB_P_PATH_LOCAL |
+ MIB_P_PATH_PRIM_PREFER ;
+ mib->fddiPORTRequestedPaths[3] =
+ MIB_P_PATH_LOCAL |
+ MIB_P_PATH_PRIM_PREFER |
+ MIB_P_PATH_CON_PREFER |
+ MIB_P_PATH_THRU ;
+ break ;
+ case TS :
+ mib->fddiPORTAvailablePaths |= MIB_PATH_S ;
+ mib->fddiPORTRequestedPaths[1] = MIB_P_PATH_LOCAL ;
+ mib->fddiPORTRequestedPaths[2] =
+ MIB_P_PATH_LOCAL |
+ MIB_P_PATH_CON_ALTER |
+ MIB_P_PATH_PRIM_PREFER ;
+ mib->fddiPORTRequestedPaths[3] =
+ MIB_P_PATH_LOCAL |
+ MIB_P_PATH_CON_ALTER |
+ MIB_P_PATH_PRIM_PREFER ;
+ break ;
+ case TM :
+ mib->fddiPORTRequestedPaths[1] = MIB_P_PATH_LOCAL ;
+ mib->fddiPORTRequestedPaths[2] =
+ MIB_P_PATH_LOCAL |
+ MIB_P_PATH_SEC_ALTER |
+ MIB_P_PATH_PRIM_ALTER ;
+ mib->fddiPORTRequestedPaths[3] = 0 ;
+ break ;
+ }
+
+ phy->pc_lem_fail = FALSE ;
+ mib->fddiPORTPCMStateX = mib->fddiPORTPCMState ;
+ mib->fddiPORTLCTFail_Ct = 0 ;
+ mib->fddiPORTBS_Flag = 0 ;
+ mib->fddiPORTCurrentPath = MIB_PATH_ISOLATED ;
+ mib->fddiPORTNeighborType = TNONE ;
+ phy->ls_flag = 0 ;
+ phy->rc_flag = 0 ;
+ phy->tc_flag = 0 ;
+ phy->td_flag = 0 ;
+ if (np >= PM)
+ phy->phy_name = '0' + np - PM ;
+ else
+ phy->phy_name = 'A' + np ;
+ phy->wc_flag = FALSE ; /* set by SMT */
+ memset((char *)&phy->lem,0,sizeof(struct lem_counter)) ;
+ reset_lem_struct(phy) ;
+ memset((char *)&phy->plc,0,sizeof(struct s_plc)) ;
+ phy->plc.p_state = PS_OFF ;
+ for (i = 0 ; i < NUMBITS ; i++) {
+ phy->t_next[i] = 0 ;
+ }
+ }
+ real_init_plc(smc) ;
+}
+
+void init_plc(struct s_smc *smc)
+{
+ SK_UNUSED(smc) ;
+
+ /*
+ * dummy
+ * this is an obsolete public entry point that has to remain
+ * for compat. It is used by various drivers.
+ * the work is now done in real_init_plc()
+ * which is called from pcm_init() ;
+ */
+}
+
+static void real_init_plc(struct s_smc *smc)
+{
+ int p ;
+
+ for (p = 0 ; p < NUMPHYS ; p++)
+ plc_init(smc,p) ;
+}
+
+static void plc_init(struct s_smc *smc, int p)
+{
+ int i ;
+#ifndef MOT_ELM
+ int rev ; /* Revision of PLC-x */
+#endif /* MOT_ELM */
+
+ /* transit PCM state machine to MAINT state */
+ outpw(PLC(p,PL_CNTRL_B),0) ;
+ outpw(PLC(p,PL_CNTRL_B),PL_PCM_STOP) ;
+ outpw(PLC(p,PL_CNTRL_A),0) ;
+
+ /*
+ * if PLC-S then set control register C
+ */
+#ifndef MOT_ELM
+ rev = inpw(PLC(p,PL_STATUS_A)) & PLC_REV_MASK ;
+ if (rev != PLC_REVISION_A)
+#endif /* MOT_ELM */
+ {
+ if (smc->y[p].pmd_scramble) {
+ outpw(PLC(p,PL_CNTRL_C),PLCS_CONTROL_C_S) ;
+#ifdef MOT_ELM
+ outpw(PLC(p,PL_T_FOT_ASS),PLCS_FASSERT_S) ;
+ outpw(PLC(p,PL_T_FOT_DEASS),PLCS_FDEASSERT_S) ;
+#endif /* MOT_ELM */
+ }
+ else {
+ outpw(PLC(p,PL_CNTRL_C),PLCS_CONTROL_C_U) ;
+#ifdef MOT_ELM
+ outpw(PLC(p,PL_T_FOT_ASS),PLCS_FASSERT_U) ;
+ outpw(PLC(p,PL_T_FOT_DEASS),PLCS_FDEASSERT_U) ;
+#endif /* MOT_ELM */
+ }
+ }
+
+ /*
+ * set timer register
+ */
+ for ( i = 0 ; pltm[i].timer; i++) /* set timer parameter reg */
+ outpw(PLC(p,pltm[i].timer),pltm[i].para) ;
+
+ (void)inpw(PLC(p,PL_INTR_EVENT)) ; /* clear interrupt event reg */
+ plc_clear_irq(smc,p) ;
+ outpw(PLC(p,PL_INTR_MASK),plc_imsk_na); /* enable non active irq's */
+
+ /*
+ * if PCM is configured for class s, it will NOT go to the
+ * REMOVE state if offline (page 3-36;)
+ * in the concentrator, all inactive PHYS always must be in
+ * the remove state
+ * there's no real need to use this feature at all ..
+ */
+#ifndef CONCENTRATOR
+ if ((smc->s.sas == SMT_SAS) && (p == PS)) {
+ outpw(PLC(p,PL_CNTRL_B),PL_CLASS_S) ;
+ }
+#endif
+}
+
+/*
+ * control PCM state machine
+ */
+static void plc_go_state(struct s_smc *smc, int p, int state)
+{
+ HW_PTR port ;
+ int val ;
+
+ SK_UNUSED(smc) ;
+
+ port = (HW_PTR) (PLC(p,PL_CNTRL_B)) ;
+ val = inpw(port) & ~(PL_PCM_CNTRL | PL_MAINT) ;
+ outpw(port,val) ;
+ outpw(port,val | state) ;
+}
+
+/*
+ * read current line state (called by ECM & PCM)
+ */
+int sm_pm_get_ls(struct s_smc *smc, int phy)
+{
+ int state ;
+
+#ifdef CONCENTRATOR
+ if (!plc_is_installed(smc,phy))
+ return(PC_QLS) ;
+#endif
+
+ state = inpw(PLC(phy,PL_STATUS_A)) & PL_LINE_ST ;
+ switch(state) {
+ case PL_L_QLS:
+ state = PC_QLS ;
+ break ;
+ case PL_L_MLS:
+ state = PC_MLS ;
+ break ;
+ case PL_L_HLS:
+ state = PC_HLS ;
+ break ;
+ case PL_L_ILS4:
+ case PL_L_ILS16:
+ state = PC_ILS ;
+ break ;
+ case PL_L_ALS:
+ state = PC_LS_PDR ;
+ break ;
+ default :
+ state = PC_LS_NONE ;
+ }
+ return(state) ;
+}
+
+static int plc_send_bits(struct s_smc *smc, struct s_phy *phy, int len)
+{
+ int np = phy->np ; /* PHY index */
+ int n ;
+ int i ;
+
+ SK_UNUSED(smc) ;
+
+ /* create bit vector */
+ for (i = len-1,n = 0 ; i >= 0 ; i--) {
+ n = (n<<1) | phy->t_val[phy->bitn+i] ;
+ }
+ if (inpw(PLC(np,PL_STATUS_B)) & PL_PCM_SIGNAL) {
+#if 0
+ printf("PL_PCM_SIGNAL is set\n") ;
+#endif
+ return(1) ;
+ }
+ /* write bit[n] & length = 1 to regs */
+ outpw(PLC(np,PL_VECTOR_LEN),len-1) ; /* len=nr-1 */
+ outpw(PLC(np,PL_XMIT_VECTOR),n) ;
+#ifdef DEBUG
+#if 1
+#ifdef DEBUG_BRD
+ if (smc->debug.d_plc & 0x80)
+#else
+ if (debug.d_plc & 0x80)
+#endif
+ printf("SIGNALING bit %d .. %d\n",phy->bitn,phy->bitn+len-1) ;
+#endif
+#endif
+ return(0) ;
+}
+
+/*
+ * config plc muxes
+ */
+void plc_config_mux(struct s_smc *smc, int mux)
+{
+ if (smc->s.sas != SMT_DAS)
+ return ;
+ if (mux == MUX_WRAPB) {
+ SETMASK(PLC(PA,PL_CNTRL_B),PL_CONFIG_CNTRL,PL_CONFIG_CNTRL) ;
+ SETMASK(PLC(PA,PL_CNTRL_A),PL_SC_REM_LOOP,PL_SC_REM_LOOP) ;
+ }
+ else {
+ CLEAR(PLC(PA,PL_CNTRL_B),PL_CONFIG_CNTRL) ;
+ CLEAR(PLC(PA,PL_CNTRL_A),PL_SC_REM_LOOP) ;
+ }
+ CLEAR(PLC(PB,PL_CNTRL_B),PL_CONFIG_CNTRL) ;
+ CLEAR(PLC(PB,PL_CNTRL_A),PL_SC_REM_LOOP) ;
+}
+
+/*
+ PCM state machine
+ called by dispatcher & fddi_init() (driver)
+ do
+ display state change
+ process event
+ until SM is stable
+*/
+void pcm(struct s_smc *smc, const int np, int event)
+{
+ int state ;
+ int oldstate ;
+ struct s_phy *phy ;
+ struct fddi_mib_p *mib ;
+
+#ifndef CONCENTRATOR
+ /*
+ * ignore 2nd PHY if SAS
+ */
+ if ((np != PS) && (smc->s.sas == SMT_SAS))
+ return ;
+#endif
+ phy = &smc->y[np] ;
+ mib = phy->mib ;
+ oldstate = mib->fddiPORTPCMState ;
+ do {
+ DB_PCM("PCM %c: state %s",
+ phy->phy_name,
+ (mib->fddiPORTPCMState & AFLAG) ? "ACTIONS " : "") ;
+ DB_PCM("%s, event %s\n",
+ pcm_states[mib->fddiPORTPCMState & ~AFLAG],
+ pcm_events[event]) ;
+ state = mib->fddiPORTPCMState ;
+ pcm_fsm(smc,phy,event) ;
+ event = 0 ;
+ } while (state != mib->fddiPORTPCMState) ;
+ /*
+ * because the PLC does the bit signaling for us,
+ * we're always in SIGNAL state
+ * the MIB want's to see CONNECT
+ * we therefore fake an entry in the MIB
+ */
+ if (state == PC5_SIGNAL)
+ mib->fddiPORTPCMStateX = PC3_CONNECT ;
+ else
+ mib->fddiPORTPCMStateX = state ;
+
+#ifndef SLIM_SMT
+ /*
+ * path change
+ */
+ if ( mib->fddiPORTPCMState != oldstate &&
+ ((oldstate == PC8_ACTIVE) || (mib->fddiPORTPCMState == PC8_ACTIVE))) {
+ smt_srf_event(smc,SMT_EVENT_PORT_PATH_CHANGE,
+ (int) (INDEX_PORT+ phy->np),0) ;
+ }
+#endif
+
+#ifdef FDDI_MIB
+ /* check whether a snmp-trap has to be sent */
+
+ if ( mib->fddiPORTPCMState != oldstate ) {
+ /* a real state change took place */
+ DB_SNMP ("PCM from %d to %d\n", oldstate, mib->fddiPORTPCMState);
+ if ( mib->fddiPORTPCMState == PC0_OFF ) {
+ /* send first trap */
+ snmp_fddi_trap (smc, 1, (int) mib->fddiPORTIndex );
+ } else if ( oldstate == PC0_OFF ) {
+ /* send second trap */
+ snmp_fddi_trap (smc, 2, (int) mib->fddiPORTIndex );
+ } else if ( mib->fddiPORTPCMState != PC2_TRACE &&
+ oldstate == PC8_ACTIVE ) {
+ /* send third trap */
+ snmp_fddi_trap (smc, 3, (int) mib->fddiPORTIndex );
+ } else if ( mib->fddiPORTPCMState == PC8_ACTIVE ) {
+ /* send fourth trap */
+ snmp_fddi_trap (smc, 4, (int) mib->fddiPORTIndex );
+ }
+ }
+#endif
+
+ pcm_state_change(smc,np,state) ;
+}
+
+/*
+ * PCM state machine
+ */
+static void pcm_fsm(struct s_smc *smc, struct s_phy *phy, int cmd)
+{
+ int i ;
+ int np = phy->np ; /* PHY index */
+ struct s_plc *plc ;
+ struct fddi_mib_p *mib ;
+#ifndef MOT_ELM
+ u_short plc_rev ; /* Revision of the plc */
+#endif /* nMOT_ELM */
+
+ plc = &phy->plc ;
+ mib = phy->mib ;
+
+ /*
+ * general transitions independent of state
+ */
+ switch (cmd) {
+ case PC_STOP :
+ /*PC00-PC80*/
+ if (mib->fddiPORTPCMState != PC9_MAINT) {
+ GO_STATE(PC0_OFF) ;
+ AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
+ FDDI_PORT_EVENT, (u_long) FDDI_PORT_STOP,
+ smt_get_port_event_word(smc));
+ }
+ return ;
+ case PC_START :
+ /*PC01-PC81*/
+ if (mib->fddiPORTPCMState != PC9_MAINT)
+ GO_STATE(PC1_BREAK) ;
+ return ;
+ case PC_DISABLE :
+ /* PC09-PC99 */
+ GO_STATE(PC9_MAINT) ;
+ AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
+ FDDI_PORT_EVENT, (u_long) FDDI_PORT_DISABLED,
+ smt_get_port_event_word(smc));
+ return ;
+ case PC_TIMEOUT_LCT :
+ /* if long or extended LCT */
+ stop_pcm_timer0(smc,phy) ;
+ CLEAR(PLC(np,PL_CNTRL_B),PL_LONG) ;
+ /* end of LCT is indicate by PCM_CODE (initiate PCM event) */
+ return ;
+ }
+
+ switch(mib->fddiPORTPCMState) {
+ case ACTIONS(PC0_OFF) :
+ stop_pcm_timer0(smc,phy) ;
+ outpw(PLC(np,PL_CNTRL_A),0) ;
+ CLEAR(PLC(np,PL_CNTRL_B),PL_PC_JOIN) ;
+ CLEAR(PLC(np,PL_CNTRL_B),PL_LONG) ;
+ sm_ph_lem_stop(smc,np) ; /* disable LEM */
+ phy->cf_loop = FALSE ;
+ phy->cf_join = FALSE ;
+ queue_event(smc,EVENT_CFM,CF_JOIN+np) ;
+ plc_go_state(smc,np,PL_PCM_STOP) ;
+ mib->fddiPORTConnectState = PCM_DISABLED ;
+ ACTIONS_DONE() ;
+ break ;
+ case PC0_OFF:
+ /*PC09*/
+ if (cmd == PC_MAINT) {
+ GO_STATE(PC9_MAINT) ;
+ break ;
+ }
+ break ;
+ case ACTIONS(PC1_BREAK) :
+ /* Stop the LCT timer if we came from Signal state */
+ stop_pcm_timer0(smc,phy) ;
+ ACTIONS_DONE() ;
+ plc_go_state(smc,np,0) ;
+ CLEAR(PLC(np,PL_CNTRL_B),PL_PC_JOIN) ;
+ CLEAR(PLC(np,PL_CNTRL_B),PL_LONG) ;
+ sm_ph_lem_stop(smc,np) ; /* disable LEM */
+ /*
+ * if vector is already loaded, go to OFF to clear PCM_SIGNAL
+ */
+#if 0
+ if (inpw(PLC(np,PL_STATUS_B)) & PL_PCM_SIGNAL) {
+ plc_go_state(smc,np,PL_PCM_STOP) ;
+ /* TB_MIN ? */
+ }
+#endif
+ /*
+ * Go to OFF state in any case.
+ */
+ plc_go_state(smc,np,PL_PCM_STOP) ;
+
+ if (mib->fddiPORTPC_Withhold == PC_WH_NONE)
+ mib->fddiPORTConnectState = PCM_CONNECTING ;
+ phy->cf_loop = FALSE ;
+ phy->cf_join = FALSE ;
+ queue_event(smc,EVENT_CFM,CF_JOIN+np) ;
+ phy->ls_flag = FALSE ;
+ phy->pc_mode = PM_NONE ; /* needed by CFM */
+ phy->bitn = 0 ; /* bit signaling start bit */
+ for (i = 0 ; i < 3 ; i++)
+ pc_tcode_actions(smc,i,phy) ;
+
+ /* Set the non-active interrupt mask register */
+ outpw(PLC(np,PL_INTR_MASK),plc_imsk_na) ;
+
+ /*
+ * If the LCT was stopped. There might be a
+ * PCM_CODE interrupt event present.
+ * This must be cleared.
+ */
+ (void)inpw(PLC(np,PL_INTR_EVENT)) ;
+#ifndef MOT_ELM
+ /* Get the plc revision for revision dependent code */
+ plc_rev = inpw(PLC(np,PL_STATUS_A)) & PLC_REV_MASK ;
+
+ if (plc_rev != PLC_REV_SN3)
+#endif /* MOT_ELM */
+ {
+ /*
+ * No supernet III PLC, so set Xmit verctor and
+ * length BEFORE starting the state machine.
+ */
+ if (plc_send_bits(smc,phy,3)) {
+ return ;
+ }
+ }
+
+ /*
+ * Now give the Start command.
+ * - The start command shall be done before setting the bits
+ * to be signaled. (In PLC-S description and PLCS in SN3.
+ * - The start command shall be issued AFTER setting the
+ * XMIT vector and the XMIT length register.
+ *
+ * We do it exactly according this specs for the old PLC and
+ * the new PLCS inside the SN3.
+ * For the usual PLCS we try it the way it is done for the
+ * old PLC and set the XMIT registers again, if the PLC is
+ * not in SIGNAL state. This is done according to an PLCS
+ * errata workaround.
+ */
+
+ plc_go_state(smc,np,PL_PCM_START) ;
+
+ /*
+ * workaround for PLC-S eng. sample errata
+ */
+#ifdef MOT_ELM
+ if (!(inpw(PLC(np,PL_STATUS_B)) & PL_PCM_SIGNAL))
+#else /* nMOT_ELM */
+ if (((inpw(PLC(np,PL_STATUS_A)) & PLC_REV_MASK) !=
+ PLC_REVISION_A) &&
+ !(inpw(PLC(np,PL_STATUS_B)) & PL_PCM_SIGNAL))
+#endif /* nMOT_ELM */
+ {
+ /*
+ * Set register again (PLCS errata) or the first time
+ * (new SN3 PLCS).
+ */
+ (void) plc_send_bits(smc,phy,3) ;
+ }
+ /*
+ * end of workaround
+ */
+
+ GO_STATE(PC5_SIGNAL) ;
+ plc->p_state = PS_BIT3 ;
+ plc->p_bits = 3 ;
+ plc->p_start = 0 ;
+
+ break ;
+ case PC1_BREAK :
+ break ;
+ case ACTIONS(PC2_TRACE) :
+ plc_go_state(smc,np,PL_PCM_TRACE) ;
+ ACTIONS_DONE() ;
+ break ;
+ case PC2_TRACE :
+ break ;
+
+ case PC3_CONNECT : /* these states are done by hardware */
+ case PC4_NEXT :
+ break ;
+
+ case ACTIONS(PC5_SIGNAL) :
+ ACTIONS_DONE() ;
+ case PC5_SIGNAL :
+ if ((cmd != PC_SIGNAL) && (cmd != PC_TIMEOUT_LCT))
+ break ;
+ switch (plc->p_state) {
+ case PS_BIT3 :
+ for (i = 0 ; i <= 2 ; i++)
+ pc_rcode_actions(smc,i,phy) ;
+ pc_tcode_actions(smc,3,phy) ;
+ plc->p_state = PS_BIT4 ;
+ plc->p_bits = 1 ;
+ plc->p_start = 3 ;
+ phy->bitn = 3 ;
+ if (plc_send_bits(smc,phy,1)) {
+ return ;
+ }
+ break ;
+ case PS_BIT4 :
+ pc_rcode_actions(smc,3,phy) ;
+ for (i = 4 ; i <= 6 ; i++)
+ pc_tcode_actions(smc,i,phy) ;
+ plc->p_state = PS_BIT7 ;
+ plc->p_bits = 3 ;
+ plc->p_start = 4 ;
+ phy->bitn = 4 ;
+ if (plc_send_bits(smc,phy,3)) {
+ return ;
+ }
+ break ;
+ case PS_BIT7 :
+ for (i = 3 ; i <= 6 ; i++)
+ pc_rcode_actions(smc,i,phy) ;
+ plc->p_state = PS_LCT ;
+ plc->p_bits = 0 ;
+ plc->p_start = 7 ;
+ phy->bitn = 7 ;
+ sm_ph_lem_start(smc,np,(int)smc->s.lct_short) ; /* enable LEM */
+ /* start LCT */
+ i = inpw(PLC(np,PL_CNTRL_B)) & ~PL_PC_LOOP ;
+ outpw(PLC(np,PL_CNTRL_B),i) ; /* must be cleared */
+ outpw(PLC(np,PL_CNTRL_B),i | PL_RLBP) ;
+ break ;
+ case PS_LCT :
+ /* check for local LCT failure */
+ pc_tcode_actions(smc,7,phy) ;
+ /*
+ * set tval[7]
+ */
+ plc->p_state = PS_BIT8 ;
+ plc->p_bits = 1 ;
+ plc->p_start = 7 ;
+ phy->bitn = 7 ;
+ if (plc_send_bits(smc,phy,1)) {
+ return ;
+ }
+ break ;
+ case PS_BIT8 :
+ /* check for remote LCT failure */
+ pc_rcode_actions(smc,7,phy) ;
+ if (phy->t_val[7] || phy->r_val[7]) {
+ plc_go_state(smc,np,PL_PCM_STOP) ;
+ GO_STATE(PC1_BREAK) ;
+ break ;
+ }
+ for (i = 8 ; i <= 9 ; i++)
+ pc_tcode_actions(smc,i,phy) ;
+ plc->p_state = PS_JOIN ;
+ plc->p_bits = 2 ;
+ plc->p_start = 8 ;
+ phy->bitn = 8 ;
+ if (plc_send_bits(smc,phy,2)) {
+ return ;
+ }
+ break ;
+ case PS_JOIN :
+ for (i = 8 ; i <= 9 ; i++)
+ pc_rcode_actions(smc,i,phy) ;
+ plc->p_state = PS_ACTIVE ;
+ GO_STATE(PC6_JOIN) ;
+ break ;
+ }
+ break ;
+
+ case ACTIONS(PC6_JOIN) :
+ /*
+ * prevent mux error when going from WRAP_A to WRAP_B
+ */
+ if (smc->s.sas == SMT_DAS && np == PB &&
+ (smc->y[PA].pc_mode == PM_TREE ||
+ smc->y[PB].pc_mode == PM_TREE)) {
+ SETMASK(PLC(np,PL_CNTRL_A),
+ PL_SC_REM_LOOP,PL_SC_REM_LOOP) ;
+ SETMASK(PLC(np,PL_CNTRL_B),
+ PL_CONFIG_CNTRL,PL_CONFIG_CNTRL) ;
+ }
+ SETMASK(PLC(np,PL_CNTRL_B),PL_PC_JOIN,PL_PC_JOIN) ;
+ SETMASK(PLC(np,PL_CNTRL_B),PL_PC_JOIN,PL_PC_JOIN) ;
+ ACTIONS_DONE() ;
+ cmd = 0 ;
+ /* fall thru */
+ case PC6_JOIN :
+ switch (plc->p_state) {
+ case PS_ACTIVE:
+ /*PC88b*/
+ if (!phy->cf_join) {
+ phy->cf_join = TRUE ;
+ queue_event(smc,EVENT_CFM,CF_JOIN+np) ; ;
+ }
+ if (cmd == PC_JOIN)
+ GO_STATE(PC8_ACTIVE) ;
+ /*PC82*/
+ if (cmd == PC_TRACE) {
+ GO_STATE(PC2_TRACE) ;
+ break ;
+ }
+ break ;
+ }
+ break ;
+
+ case PC7_VERIFY :
+ break ;
+
+ case ACTIONS(PC8_ACTIVE) :
+ /*
+ * start LEM for SMT
+ */
+ sm_ph_lem_start(smc,(int)phy->np,LCT_LEM_MAX) ;
+
+ phy->tr_flag = FALSE ;
+ mib->fddiPORTConnectState = PCM_ACTIVE ;
+
+ /* Set the active interrupt mask register */
+ outpw(PLC(np,PL_INTR_MASK),plc_imsk_act) ;
+
+ ACTIONS_DONE() ;
+ break ;
+ case PC8_ACTIVE :
+ /*PC81 is done by PL_TNE_EXPIRED irq */
+ /*PC82*/
+ if (cmd == PC_TRACE) {
+ GO_STATE(PC2_TRACE) ;
+ break ;
+ }
+ /*PC88c: is done by TRACE_PROP irq */
+
+ break ;
+ case ACTIONS(PC9_MAINT) :
+ stop_pcm_timer0(smc,phy) ;
+ CLEAR(PLC(np,PL_CNTRL_B),PL_PC_JOIN) ;
+ CLEAR(PLC(np,PL_CNTRL_B),PL_LONG) ;
+ CLEAR(PLC(np,PL_INTR_MASK),PL_LE_CTR) ; /* disable LEM int. */
+ sm_ph_lem_stop(smc,np) ; /* disable LEM */
+ phy->cf_loop = FALSE ;
+ phy->cf_join = FALSE ;
+ queue_event(smc,EVENT_CFM,CF_JOIN+np) ;
+ plc_go_state(smc,np,PL_PCM_STOP) ;
+ mib->fddiPORTConnectState = PCM_DISABLED ;
+ SETMASK(PLC(np,PL_CNTRL_B),PL_MAINT,PL_MAINT) ;
+ sm_ph_linestate(smc,np,(int) MIB2LS(mib->fddiPORTMaint_LS)) ;
+ outpw(PLC(np,PL_CNTRL_A),PL_SC_BYPASS) ;
+ ACTIONS_DONE() ;
+ break ;
+ case PC9_MAINT :
+ DB_PCMN(1,"PCM %c : MAINT\n",phy->phy_name,0) ;
+ /*PC90*/
+ if (cmd == PC_ENABLE) {
+ GO_STATE(PC0_OFF) ;
+ break ;
+ }
+ break ;
+
+ default:
+ SMT_PANIC(smc,SMT_E0118, SMT_E0118_MSG) ;
+ break ;
+ }
+}
+
+/*
+ * force line state on a PHY output (only in MAINT state)
+ */
+static void sm_ph_linestate(struct s_smc *smc, int phy, int ls)
+{
+ int cntrl ;
+
+ SK_UNUSED(smc) ;
+
+ cntrl = (inpw(PLC(phy,PL_CNTRL_B)) & ~PL_MAINT_LS) |
+ PL_PCM_STOP | PL_MAINT ;
+ switch(ls) {
+ case PC_QLS: /* Force Quiet */
+ cntrl |= PL_M_QUI0 ;
+ break ;
+ case PC_MLS: /* Force Master */
+ cntrl |= PL_M_MASTR ;
+ break ;
+ case PC_HLS: /* Force Halt */
+ cntrl |= PL_M_HALT ;
+ break ;
+ default :
+ case PC_ILS: /* Force Idle */
+ cntrl |= PL_M_IDLE ;
+ break ;
+ case PC_LS_PDR: /* Enable repeat filter */
+ cntrl |= PL_M_TPDR ;
+ break ;
+ }
+ outpw(PLC(phy,PL_CNTRL_B),cntrl) ;
+}
+
+static void reset_lem_struct(struct s_phy *phy)
+{
+ struct lem_counter *lem = &phy->lem ;
+
+ phy->mib->fddiPORTLer_Estimate = 15 ;
+ lem->lem_float_ber = 15 * 100 ;
+}
+
+/*
+ * link error monitor
+ */
+static void lem_evaluate(struct s_smc *smc, struct s_phy *phy)
+{
+ int ber ;
+ u_long errors ;
+ struct lem_counter *lem = &phy->lem ;
+ struct fddi_mib_p *mib ;
+ int cond ;
+
+ mib = phy->mib ;
+
+ if (!lem->lem_on)
+ return ;
+
+ errors = inpw(PLC(((int) phy->np),PL_LINK_ERR_CTR)) ;
+ lem->lem_errors += errors ;
+ mib->fddiPORTLem_Ct += errors ;
+
+ errors = lem->lem_errors ;
+ /*
+ * calculation is called on a intervall of 8 seconds
+ * -> this means, that one error in 8 sec. is one of 8*125*10E6
+ * the same as BER = 10E-9
+ * Please note:
+ * -> 9 errors in 8 seconds mean:
+ * BER = 9 * 10E-9 and this is
+ * < 10E-8, so the limit of 10E-8 is not reached!
+ */
+
+ if (!errors) ber = 15 ;
+ else if (errors <= 9) ber = 9 ;
+ else if (errors <= 99) ber = 8 ;
+ else if (errors <= 999) ber = 7 ;
+ else if (errors <= 9999) ber = 6 ;
+ else if (errors <= 99999) ber = 5 ;
+ else if (errors <= 999999) ber = 4 ;
+ else if (errors <= 9999999) ber = 3 ;
+ else if (errors <= 99999999) ber = 2 ;
+ else if (errors <= 999999999) ber = 1 ;
+ else ber = 0 ;
+
+ /*
+ * weighted average
+ */
+ ber *= 100 ;
+ lem->lem_float_ber = lem->lem_float_ber * 7 + ber * 3 ;
+ lem->lem_float_ber /= 10 ;
+ mib->fddiPORTLer_Estimate = lem->lem_float_ber / 100 ;
+ if (mib->fddiPORTLer_Estimate < 4) {
+ mib->fddiPORTLer_Estimate = 4 ;
+ }
+
+ if (lem->lem_errors) {
+ DB_PCMN(1,"LEM %c :\n",phy->np == PB? 'B' : 'A',0) ;
+ DB_PCMN(1,"errors : %ld\n",lem->lem_errors,0) ;
+ DB_PCMN(1,"sum_errors : %ld\n",mib->fddiPORTLem_Ct,0) ;
+ DB_PCMN(1,"current BER : 10E-%d\n",ber/100,0) ;
+ DB_PCMN(1,"float BER : 10E-(%d/100)\n",lem->lem_float_ber,0) ;
+ DB_PCMN(1,"avg. BER : 10E-%d\n",
+ mib->fddiPORTLer_Estimate,0) ;
+ }
+
+ lem->lem_errors = 0L ;
+
+#ifndef SLIM_SMT
+ cond = (mib->fddiPORTLer_Estimate <= mib->fddiPORTLer_Alarm) ?
+ TRUE : FALSE ;
+#ifdef SMT_EXT_CUTOFF
+ smt_ler_alarm_check(smc,phy,cond) ;
+#endif /* nSMT_EXT_CUTOFF */
+ if (cond != mib->fddiPORTLerFlag) {
+ smt_srf_event(smc,SMT_COND_PORT_LER,
+ (int) (INDEX_PORT+ phy->np) ,cond) ;
+ }
+#endif
+
+ if ( mib->fddiPORTLer_Estimate <= mib->fddiPORTLer_Cutoff) {
+ phy->pc_lem_fail = TRUE ; /* flag */
+ mib->fddiPORTLem_Reject_Ct++ ;
+ /*
+ * "forgive 10e-2" if we cutoff so we can come
+ * up again ..
+ */
+ lem->lem_float_ber += 2*100 ;
+
+ /*PC81b*/
+#ifdef CONCENTRATOR
+ DB_PCMN(1,"PCM: LER cutoff on port %d cutoff %d\n",
+ phy->np, mib->fddiPORTLer_Cutoff) ;
+#endif
+#ifdef SMT_EXT_CUTOFF
+ smt_port_off_event(smc,phy->np);
+#else /* nSMT_EXT_CUTOFF */
+ queue_event(smc,(int)(EVENT_PCM+phy->np),PC_START) ;
+#endif /* nSMT_EXT_CUTOFF */
+ }
+}
+
+/*
+ * called by SMT to calculate LEM bit error rate
+ */
+void sm_lem_evaluate(struct s_smc *smc)
+{
+ int np ;
+
+ for (np = 0 ; np < NUMPHYS ; np++)
+ lem_evaluate(smc,&smc->y[np]) ;
+}
+
+static void lem_check_lct(struct s_smc *smc, struct s_phy *phy)
+{
+ struct lem_counter *lem = &phy->lem ;
+ struct fddi_mib_p *mib ;
+ int errors ;
+
+ mib = phy->mib ;
+
+ phy->pc_lem_fail = FALSE ; /* flag */
+ errors = inpw(PLC(((int)phy->np),PL_LINK_ERR_CTR)) ;
+ lem->lem_errors += errors ;
+ mib->fddiPORTLem_Ct += errors ;
+ if (lem->lem_errors) {
+ switch(phy->lc_test) {
+ case LC_SHORT:
+ if (lem->lem_errors >= smc->s.lct_short)
+ phy->pc_lem_fail = TRUE ;
+ break ;
+ case LC_MEDIUM:
+ if (lem->lem_errors >= smc->s.lct_medium)
+ phy->pc_lem_fail = TRUE ;
+ break ;
+ case LC_LONG:
+ if (lem->lem_errors >= smc->s.lct_long)
+ phy->pc_lem_fail = TRUE ;
+ break ;
+ case LC_EXTENDED:
+ if (lem->lem_errors >= smc->s.lct_extended)
+ phy->pc_lem_fail = TRUE ;
+ break ;
+ }
+ DB_PCMN(1," >>errors : %d\n",lem->lem_errors,0) ;
+ }
+ if (phy->pc_lem_fail) {
+ mib->fddiPORTLCTFail_Ct++ ;
+ mib->fddiPORTLem_Reject_Ct++ ;
+ }
+ else
+ mib->fddiPORTLCTFail_Ct = 0 ;
+}
+
+/*
+ * LEM functions
+ */
+static void sm_ph_lem_start(struct s_smc *smc, int np, int threshold)
+{
+ struct lem_counter *lem = &smc->y[np].lem ;
+
+ lem->lem_on = 1 ;
+ lem->lem_errors = 0L ;
+
+ /* Do NOT reset mib->fddiPORTLer_Estimate here. It is called too
+ * often.
+ */
+
+ outpw(PLC(np,PL_LE_THRESHOLD),threshold) ;
+ (void)inpw(PLC(np,PL_LINK_ERR_CTR)) ; /* clear error counter */
+
+ /* enable LE INT */
+ SETMASK(PLC(np,PL_INTR_MASK),PL_LE_CTR,PL_LE_CTR) ;
+}
+
+static void sm_ph_lem_stop(struct s_smc *smc, int np)
+{
+ struct lem_counter *lem = &smc->y[np].lem ;
+
+ lem->lem_on = 0 ;
+ CLEAR(PLC(np,PL_INTR_MASK),PL_LE_CTR) ;
+}
+
+/* ARGSUSED */
+void sm_pm_ls_latch(struct s_smc *smc, int phy, int on_off)
+/* int on_off; en- or disable ident. ls */
+{
+ SK_UNUSED(smc) ;
+
+ phy = phy ; on_off = on_off ;
+}
+
+
+/*
+ * PCM pseudo code
+ * receive actions are called AFTER the bit n is received,
+ * i.e. if pc_rcode_actions(5) is called, bit 6 is the next bit to be received
+ */
+
+/*
+ * PCM pseudo code 5.1 .. 6.1
+ */
+static void pc_rcode_actions(struct s_smc *smc, int bit, struct s_phy *phy)
+{
+ struct fddi_mib_p *mib ;
+
+ mib = phy->mib ;
+
+ DB_PCMN(1,"SIG rec %x %x: \n", bit,phy->r_val[bit] ) ;
+ bit++ ;
+
+ switch(bit) {
+ case 0:
+ case 1:
+ case 2:
+ break ;
+ case 3 :
+ if (phy->r_val[1] == 0 && phy->r_val[2] == 0)
+ mib->fddiPORTNeighborType = TA ;
+ else if (phy->r_val[1] == 0 && phy->r_val[2] == 1)
+ mib->fddiPORTNeighborType = TB ;
+ else if (phy->r_val[1] == 1 && phy->r_val[2] == 0)
+ mib->fddiPORTNeighborType = TS ;
+ else if (phy->r_val[1] == 1 && phy->r_val[2] == 1)
+ mib->fddiPORTNeighborType = TM ;
+ break ;
+ case 4:
+ if (mib->fddiPORTMy_Type == TM &&
+ mib->fddiPORTNeighborType == TM) {
+ DB_PCMN(1,"PCM %c : E100 withhold M-M\n",
+ phy->phy_name,0) ;
+ mib->fddiPORTPC_Withhold = PC_WH_M_M ;
+ RS_SET(smc,RS_EVENT) ;
+ }
+ else if (phy->t_val[3] || phy->r_val[3]) {
+ mib->fddiPORTPC_Withhold = PC_WH_NONE ;
+ if (mib->fddiPORTMy_Type == TM ||
+ mib->fddiPORTNeighborType == TM)
+ phy->pc_mode = PM_TREE ;
+ else
+ phy->pc_mode = PM_PEER ;
+
+ /* reevaluate the selection criteria (wc_flag) */
+ all_selection_criteria (smc);
+
+ if (phy->wc_flag) {
+ mib->fddiPORTPC_Withhold = PC_WH_PATH ;
+ }
+ }
+ else {
+ mib->fddiPORTPC_Withhold = PC_WH_OTHER ;
+ RS_SET(smc,RS_EVENT) ;
+ DB_PCMN(1,"PCM %c : E101 withhold other\n",
+ phy->phy_name,0) ;
+ }
+ phy->twisted = ((mib->fddiPORTMy_Type != TS) &&
+ (mib->fddiPORTMy_Type != TM) &&
+ (mib->fddiPORTNeighborType ==
+ mib->fddiPORTMy_Type)) ;
+ if (phy->twisted) {
+ DB_PCMN(1,"PCM %c : E102 !!! TWISTED !!!\n",
+ phy->phy_name,0) ;
+ }
+ break ;
+ case 5 :
+ break ;
+ case 6:
+ if (phy->t_val[4] || phy->r_val[4]) {
+ if ((phy->t_val[4] && phy->t_val[5]) ||
+ (phy->r_val[4] && phy->r_val[5]) )
+ phy->lc_test = LC_EXTENDED ;
+ else
+ phy->lc_test = LC_LONG ;
+ }
+ else if (phy->t_val[5] || phy->r_val[5])
+ phy->lc_test = LC_MEDIUM ;
+ else
+ phy->lc_test = LC_SHORT ;
+ switch (phy->lc_test) {
+ case LC_SHORT : /* 50ms */
+ outpw(PLC((int)phy->np,PL_LC_LENGTH), TP_LC_LENGTH ) ;
+ phy->t_next[7] = smc->s.pcm_lc_short ;
+ break ;
+ case LC_MEDIUM : /* 500ms */
+ outpw(PLC((int)phy->np,PL_LC_LENGTH), TP_LC_LONGLN ) ;
+ phy->t_next[7] = smc->s.pcm_lc_medium ;
+ break ;
+ case LC_LONG :
+ SETMASK(PLC((int)phy->np,PL_CNTRL_B),PL_LONG,PL_LONG) ;
+ phy->t_next[7] = smc->s.pcm_lc_long ;
+ break ;
+ case LC_EXTENDED :
+ SETMASK(PLC((int)phy->np,PL_CNTRL_B),PL_LONG,PL_LONG) ;
+ phy->t_next[7] = smc->s.pcm_lc_extended ;
+ break ;
+ }
+ if (phy->t_next[7] > smc->s.pcm_lc_medium) {
+ start_pcm_timer0(smc,phy->t_next[7],PC_TIMEOUT_LCT,phy);
+ }
+ DB_PCMN(1,"LCT timer = %ld us\n", phy->t_next[7], 0) ;
+ phy->t_next[9] = smc->s.pcm_t_next_9 ;
+ break ;
+ case 7:
+ if (phy->t_val[6]) {
+ phy->cf_loop = TRUE ;
+ }
+ phy->td_flag = TRUE ;
+ break ;
+ case 8:
+ if (phy->t_val[7] || phy->r_val[7]) {
+ DB_PCMN(1,"PCM %c : E103 LCT fail %s\n",
+ phy->phy_name,phy->t_val[7]? "local":"remote") ;
+ queue_event(smc,(int)(EVENT_PCM+phy->np),PC_START) ;
+ }
+ break ;
+ case 9:
+ if (phy->t_val[8] || phy->r_val[8]) {
+ if (phy->t_val[8])
+ phy->cf_loop = TRUE ;
+ phy->td_flag = TRUE ;
+ }
+ break ;
+ case 10:
+ if (phy->r_val[9]) {
+ /* neighbor intends to have MAC on output */ ;
+ mib->fddiPORTMacIndicated.R_val = TRUE ;
+ }
+ else {
+ /* neighbor does not intend to have MAC on output */ ;
+ mib->fddiPORTMacIndicated.R_val = FALSE ;
+ }
+ break ;
+ }
+}
+
+/*
+ * PCM pseudo code 5.1 .. 6.1
+ */
+static void pc_tcode_actions(struct s_smc *smc, const int bit, struct s_phy *phy)
+{
+ int np = phy->np ;
+ struct fddi_mib_p *mib ;
+
+ mib = phy->mib ;
+
+ switch(bit) {
+ case 0:
+ phy->t_val[0] = 0 ; /* no escape used */
+ break ;
+ case 1:
+ if (mib->fddiPORTMy_Type == TS || mib->fddiPORTMy_Type == TM)
+ phy->t_val[1] = 1 ;
+ else
+ phy->t_val[1] = 0 ;
+ break ;
+ case 2 :
+ if (mib->fddiPORTMy_Type == TB || mib->fddiPORTMy_Type == TM)
+ phy->t_val[2] = 1 ;
+ else
+ phy->t_val[2] = 0 ;
+ break ;
+ case 3:
+ {
+ int type,ne ;
+ int policy ;
+
+ type = mib->fddiPORTMy_Type ;
+ ne = mib->fddiPORTNeighborType ;
+ policy = smc->mib.fddiSMTConnectionPolicy ;
+
+ phy->t_val[3] = 1 ; /* Accept connection */
+ switch (type) {
+ case TA :
+ if (
+ ((policy & POLICY_AA) && ne == TA) ||
+ ((policy & POLICY_AB) && ne == TB) ||
+ ((policy & POLICY_AS) && ne == TS) ||
+ ((policy & POLICY_AM) && ne == TM) )
+ phy->t_val[3] = 0 ; /* Reject */
+ break ;
+ case TB :
+ if (
+ ((policy & POLICY_BA) && ne == TA) ||
+ ((policy & POLICY_BB) && ne == TB) ||
+ ((policy & POLICY_BS) && ne == TS) ||
+ ((policy & POLICY_BM) && ne == TM) )
+ phy->t_val[3] = 0 ; /* Reject */
+ break ;
+ case TS :
+ if (
+ ((policy & POLICY_SA) && ne == TA) ||
+ ((policy & POLICY_SB) && ne == TB) ||
+ ((policy & POLICY_SS) && ne == TS) ||
+ ((policy & POLICY_SM) && ne == TM) )
+ phy->t_val[3] = 0 ; /* Reject */
+ break ;
+ case TM :
+ if ( ne == TM ||
+ ((policy & POLICY_MA) && ne == TA) ||
+ ((policy & POLICY_MB) && ne == TB) ||
+ ((policy & POLICY_MS) && ne == TS) ||
+ ((policy & POLICY_MM) && ne == TM) )
+ phy->t_val[3] = 0 ; /* Reject */
+ break ;
+ }
+#ifndef SLIM_SMT
+ /*
+ * detect undesirable connection attempt event
+ */
+ if ( (type == TA && ne == TA ) ||
+ (type == TA && ne == TS ) ||
+ (type == TB && ne == TB ) ||
+ (type == TB && ne == TS ) ||
+ (type == TS && ne == TA ) ||
+ (type == TS && ne == TB ) ) {
+ smt_srf_event(smc,SMT_EVENT_PORT_CONNECTION,
+ (int) (INDEX_PORT+ phy->np) ,0) ;
+ }
+#endif
+ }
+ break ;
+ case 4:
+ if (mib->fddiPORTPC_Withhold == PC_WH_NONE) {
+ if (phy->pc_lem_fail) {
+ phy->t_val[4] = 1 ; /* long */
+ phy->t_val[5] = 0 ;
+ }
+ else {
+ phy->t_val[4] = 0 ;
+ if (mib->fddiPORTLCTFail_Ct > 0)
+ phy->t_val[5] = 1 ; /* medium */
+ else
+ phy->t_val[5] = 0 ; /* short */
+
+ /*
+ * Implementers choice: use medium
+ * instead of short when undesired
+ * connection attempt is made.
+ */
+ if (phy->wc_flag)
+ phy->t_val[5] = 1 ; /* medium */
+ }
+ mib->fddiPORTConnectState = PCM_CONNECTING ;
+ }
+ else {
+ mib->fddiPORTConnectState = PCM_STANDBY ;
+ phy->t_val[4] = 1 ; /* extended */
+ phy->t_val[5] = 1 ;
+ }
+ break ;
+ case 5:
+ break ;
+ case 6:
+ /* we do NOT have a MAC for LCT */
+ phy->t_val[6] = 0 ;
+ break ;
+ case 7:
+ phy->cf_loop = FALSE ;
+ lem_check_lct(smc,phy) ;
+ if (phy->pc_lem_fail) {
+ DB_PCMN(1,"PCM %c : E104 LCT failed\n",
+ phy->phy_name,0) ;
+ phy->t_val[7] = 1 ;
+ }
+ else
+ phy->t_val[7] = 0 ;
+ break ;
+ case 8:
+ phy->t_val[8] = 0 ; /* Don't request MAC loopback */
+ break ;
+ case 9:
+ phy->cf_loop = 0 ;
+ if ((mib->fddiPORTPC_Withhold != PC_WH_NONE) ||
+ ((smc->s.sas == SMT_DAS) && (phy->wc_flag))) {
+ queue_event(smc,EVENT_PCM+np,PC_START) ;
+ break ;
+ }
+ phy->t_val[9] = FALSE ;
+ switch (smc->s.sas) {
+ case SMT_DAS :
+ /*
+ * MAC intended on output
+ */
+ if (phy->pc_mode == PM_TREE) {
+ if ((np == PB) || ((np == PA) &&
+ (smc->y[PB].mib->fddiPORTConnectState !=
+ PCM_ACTIVE)))
+ phy->t_val[9] = TRUE ;
+ }
+ else {
+ if (np == PB)
+ phy->t_val[9] = TRUE ;
+ }
+ break ;
+ case SMT_SAS :
+ if (np == PS)
+ phy->t_val[9] = TRUE ;
+ break ;
+#ifdef CONCENTRATOR
+ case SMT_NAC :
+ /*
+ * MAC intended on output
+ */
+ if (np == PB)
+ phy->t_val[9] = TRUE ;
+ break ;
+#endif
+ }
+ mib->fddiPORTMacIndicated.T_val = phy->t_val[9] ;
+ break ;
+ }
+ DB_PCMN(1,"SIG snd %x %x: \n", bit,phy->t_val[bit] ) ;
+}
+
+/*
+ * return status twisted (called by SMT)
+ */
+int pcm_status_twisted(struct s_smc *smc)
+{
+ int twist = 0 ;
+ if (smc->s.sas != SMT_DAS)
+ return(0) ;
+ if (smc->y[PA].twisted && (smc->y[PA].mib->fddiPORTPCMState == PC8_ACTIVE))
+ twist |= 1 ;
+ if (smc->y[PB].twisted && (smc->y[PB].mib->fddiPORTPCMState == PC8_ACTIVE))
+ twist |= 2 ;
+ return(twist) ;
+}
+
+/*
+ * return status (called by SMT)
+ * type
+ * state
+ * remote phy type
+ * remote mac yes/no
+ */
+void pcm_status_state(struct s_smc *smc, int np, int *type, int *state,
+ int *remote, int *mac)
+{
+ struct s_phy *phy = &smc->y[np] ;
+ struct fddi_mib_p *mib ;
+
+ mib = phy->mib ;
+
+ /* remote PHY type and MAC - set only if active */
+ *mac = 0 ;
+ *type = mib->fddiPORTMy_Type ; /* our PHY type */
+ *state = mib->fddiPORTConnectState ;
+ *remote = mib->fddiPORTNeighborType ;
+
+ switch(mib->fddiPORTPCMState) {
+ case PC8_ACTIVE :
+ *mac = mib->fddiPORTMacIndicated.R_val ;
+ break ;
+ }
+}
+
+/*
+ * return rooted station status (called by SMT)
+ */
+int pcm_rooted_station(struct s_smc *smc)
+{
+ int n ;
+
+ for (n = 0 ; n < NUMPHYS ; n++) {
+ if (smc->y[n].mib->fddiPORTPCMState == PC8_ACTIVE &&
+ smc->y[n].mib->fddiPORTNeighborType == TM)
+ return(0) ;
+ }
+ return(1) ;
+}
+
+/*
+ * Interrupt actions for PLC & PCM events
+ */
+void plc_irq(struct s_smc *smc, int np, unsigned int cmd)
+/* int np; PHY index */
+{
+ struct s_phy *phy = &smc->y[np] ;
+ struct s_plc *plc = &phy->plc ;
+ int n ;
+#ifdef SUPERNET_3
+ int corr_mask ;
+#endif /* SUPERNET_3 */
+ int i ;
+
+ if (np >= smc->s.numphys) {
+ plc->soft_err++ ;
+ return ;
+ }
+ if (cmd & PL_EBUF_ERR) { /* elastic buff. det. over-|underflow*/
+ /*
+ * Check whether the SRF Condition occurred.
+ */
+ if (!plc->ebuf_cont && phy->mib->fddiPORTPCMState == PC8_ACTIVE){
+ /*
+ * This is the real Elasticity Error.
+ * More than one in a row are treated as a
+ * single one.
+ * Only count this in the active state.
+ */
+ phy->mib->fddiPORTEBError_Ct ++ ;
+
+ }
+
+ plc->ebuf_err++ ;
+ if (plc->ebuf_cont <= 1000) {
+ /*
+ * Prevent counter from being wrapped after
+ * hanging years in that interrupt.
+ */
+ plc->ebuf_cont++ ; /* Ebuf continous error */
+ }
+
+#ifdef SUPERNET_3
+ if (plc->ebuf_cont == 1000 &&
+ ((inpw(PLC(np,PL_STATUS_A)) & PLC_REV_MASK) ==
+ PLC_REV_SN3)) {
+ /*
+ * This interrupt remeained high for at least
+ * 1000 consecutive interrupt calls.
+ *
+ * This is caused by a hardware error of the
+ * ORION part of the Supernet III chipset.
+ *
+ * Disable this bit from the mask.
+ */
+ corr_mask = (plc_imsk_na & ~PL_EBUF_ERR) ;
+ outpw(PLC(np,PL_INTR_MASK),corr_mask);
+
+ /*
+ * Disconnect from the ring.
+ * Call the driver with the reset indication.
+ */
+ queue_event(smc,EVENT_ECM,EC_DISCONNECT) ;
+
+ /*
+ * Make an error log entry.
+ */
+ SMT_ERR_LOG(smc,SMT_E0136, SMT_E0136_MSG) ;
+
+ /*
+ * Indicate the Reset.
+ */
+ drv_reset_indication(smc) ;
+ }
+#endif /* SUPERNET_3 */
+ } else {
+ /* Reset the continous error variable */
+ plc->ebuf_cont = 0 ; /* reset Ebuf continous error */
+ }
+ if (cmd & PL_PHYINV) { /* physical layer invalid signal */
+ plc->phyinv++ ;
+ }
+ if (cmd & PL_VSYM_CTR) { /* violation symbol counter has incr.*/
+ plc->vsym_ctr++ ;
+ }
+ if (cmd & PL_MINI_CTR) { /* dep. on PLC_CNTRL_A's MINI_CTR_INT*/
+ plc->mini_ctr++ ;
+ }
+ if (cmd & PL_LE_CTR) { /* link error event counter */
+ int j ;
+
+ /*
+ * note: PL_LINK_ERR_CTR MUST be read to clear it
+ */
+ j = inpw(PLC(np,PL_LE_THRESHOLD)) ;
+ i = inpw(PLC(np,PL_LINK_ERR_CTR)) ;
+
+ if (i < j) {
+ /* wrapped around */
+ i += 256 ;
+ }
+
+ if (phy->lem.lem_on) {
+ /* Note: Lem errors shall only be counted when
+ * link is ACTIVE or LCT is active.
+ */
+ phy->lem.lem_errors += i ;
+ phy->mib->fddiPORTLem_Ct += i ;
+ }
+ }
+ if (cmd & PL_TPC_EXPIRED) { /* TPC timer reached zero */
+ if (plc->p_state == PS_LCT) {
+ /*
+ * end of LCT
+ */
+ ;
+ }
+ plc->tpc_exp++ ;
+ }
+ if (cmd & PL_LS_MATCH) { /* LS == LS in PLC_CNTRL_B's MATCH_LS*/
+ switch (inpw(PLC(np,PL_CNTRL_B)) & PL_MATCH_LS) {
+ case PL_I_IDLE : phy->curr_ls = PC_ILS ; break ;
+ case PL_I_HALT : phy->curr_ls = PC_HLS ; break ;
+ case PL_I_MASTR : phy->curr_ls = PC_MLS ; break ;
+ case PL_I_QUIET : phy->curr_ls = PC_QLS ; break ;
+ }
+ }
+ if (cmd & PL_PCM_BREAK) { /* PCM has entered the BREAK state */
+ int reason;
+
+ reason = inpw(PLC(np,PL_STATUS_B)) & PL_BREAK_REASON ;
+
+ switch (reason) {
+ case PL_B_PCS : plc->b_pcs++ ; break ;
+ case PL_B_TPC : plc->b_tpc++ ; break ;
+ case PL_B_TNE : plc->b_tne++ ; break ;
+ case PL_B_QLS : plc->b_qls++ ; break ;
+ case PL_B_ILS : plc->b_ils++ ; break ;
+ case PL_B_HLS : plc->b_hls++ ; break ;
+ }
+
+ /*jd 05-Aug-1999 changed: Bug #10419 */
+ DB_PCMN(1,"PLC %d: MDcF = %x\n", np, smc->e.DisconnectFlag);
+ if (smc->e.DisconnectFlag == FALSE) {
+ DB_PCMN(1,"PLC %d: restart (reason %x)\n", np, reason);
+ queue_event(smc,EVENT_PCM+np,PC_START) ;
+ }
+ else {
+ DB_PCMN(1,"PLC %d: NO!! restart (reason %x)\n", np, reason);
+ }
+ return ;
+ }
+ /*
+ * If both CODE & ENABLE are set ignore enable
+ */
+ if (cmd & PL_PCM_CODE) { /* receive last sign.-bit | LCT complete */
+ queue_event(smc,EVENT_PCM+np,PC_SIGNAL) ;
+ n = inpw(PLC(np,PL_RCV_VECTOR)) ;
+ for (i = 0 ; i < plc->p_bits ; i++) {
+ phy->r_val[plc->p_start+i] = n & 1 ;
+ n >>= 1 ;
+ }
+ }
+ else if (cmd & PL_PCM_ENABLED) { /* asserted SC_JOIN, scrub.completed*/
+ queue_event(smc,EVENT_PCM+np,PC_JOIN) ;
+ }
+ if (cmd & PL_TRACE_PROP) { /* MLS while PC8_ACTIV || PC2_TRACE */
+ /*PC22b*/
+ if (!phy->tr_flag) {
+ DB_PCMN(1,"PCM : irq TRACE_PROP %d %d\n",
+ np,smc->mib.fddiSMTECMState) ;
+ phy->tr_flag = TRUE ;
+ smc->e.trace_prop |= ENTITY_BIT(ENTITY_PHY(np)) ;
+ queue_event(smc,EVENT_ECM,EC_TRACE_PROP) ;
+ }
+ }
+ /*
+ * filter PLC glitch ???
+ * QLS || HLS only while in PC2_TRACE state
+ */
+ if ((cmd & PL_SELF_TEST) && (phy->mib->fddiPORTPCMState == PC2_TRACE)) {
+ /*PC22a*/
+ if (smc->e.path_test == PT_PASSED) {
+ DB_PCMN(1,"PCM : state = %s %d\n", get_pcmstate(smc,np),
+ phy->mib->fddiPORTPCMState) ;
+
+ smc->e.path_test = PT_PENDING ;
+ queue_event(smc,EVENT_ECM,EC_PATH_TEST) ;
+ }
+ }
+ if (cmd & PL_TNE_EXPIRED) { /* TNE: length of noise events */
+ /* break_required (TNE > NS_Max) */
+ if (phy->mib->fddiPORTPCMState == PC8_ACTIVE) {
+ if (!phy->tr_flag) {
+ DB_PCMN(1,"PCM %c : PC81 %s\n",phy->phy_name,"NSE");
+ queue_event(smc,EVENT_PCM+np,PC_START) ;
+ return ;
+ }
+ }
+ }
+#if 0
+ if (cmd & PL_NP_ERR) { /* NP has requested to r/w an inv reg*/
+ /*
+ * It's a bug by AMD
+ */
+ plc->np_err++ ;
+ }
+ /* pin inactiv (GND) */
+ if (cmd & PL_PARITY_ERR) { /* p. error dedected on TX9-0 inp */
+ plc->parity_err++ ;
+ }
+ if (cmd & PL_LSDO) { /* carrier detected */
+ ;
+ }
+#endif
+}
+
+void pcm_set_lct_short(struct s_smc *smc, int n)
+{
+ if (n <= 0 || n > 1000)
+ return ;
+ smc->s.lct_short = n ;
+}
+
+#ifdef DEBUG
+/*
+ * fill state struct
+ */
+void pcm_get_state(struct s_smc *smc, struct smt_state *state)
+{
+ struct s_phy *phy ;
+ struct pcm_state *pcs ;
+ int i ;
+ int ii ;
+ short rbits ;
+ short tbits ;
+ struct fddi_mib_p *mib ;
+
+ for (i = 0, phy = smc->y, pcs = state->pcm_state ; i < NUMPHYS ;
+ i++ , phy++, pcs++ ) {
+ mib = phy->mib ;
+ pcs->pcm_type = (u_char) mib->fddiPORTMy_Type ;
+ pcs->pcm_state = (u_char) mib->fddiPORTPCMState ;
+ pcs->pcm_mode = phy->pc_mode ;
+ pcs->pcm_neighbor = (u_char) mib->fddiPORTNeighborType ;
+ pcs->pcm_bsf = mib->fddiPORTBS_Flag ;
+ pcs->pcm_lsf = phy->ls_flag ;
+ pcs->pcm_lct_fail = (u_char) mib->fddiPORTLCTFail_Ct ;
+ pcs->pcm_ls_rx = LS2MIB(sm_pm_get_ls(smc,i)) ;
+ for (ii = 0, rbits = tbits = 0 ; ii < NUMBITS ; ii++) {
+ rbits <<= 1 ;
+ tbits <<= 1 ;
+ if (phy->r_val[NUMBITS-1-ii])
+ rbits |= 1 ;
+ if (phy->t_val[NUMBITS-1-ii])
+ tbits |= 1 ;
+ }
+ pcs->pcm_r_val = rbits ;
+ pcs->pcm_t_val = tbits ;
+ }
+}
+
+int get_pcm_state(struct s_smc *smc, int np)
+{
+ int pcs ;
+
+ SK_UNUSED(smc) ;
+
+ switch (inpw(PLC(np,PL_STATUS_B)) & PL_PCM_STATE) {
+ case PL_PC0 : pcs = PC_STOP ; break ;
+ case PL_PC1 : pcs = PC_START ; break ;
+ case PL_PC2 : pcs = PC_TRACE ; break ;
+ case PL_PC3 : pcs = PC_SIGNAL ; break ;
+ case PL_PC4 : pcs = PC_SIGNAL ; break ;
+ case PL_PC5 : pcs = PC_SIGNAL ; break ;
+ case PL_PC6 : pcs = PC_JOIN ; break ;
+ case PL_PC7 : pcs = PC_JOIN ; break ;
+ case PL_PC8 : pcs = PC_ENABLE ; break ;
+ case PL_PC9 : pcs = PC_MAINT ; break ;
+ default : pcs = PC_DISABLE ; break ;
+ }
+ return(pcs) ;
+}
+
+char *get_linestate(struct s_smc *smc, int np)
+{
+ char *ls = "" ;
+
+ SK_UNUSED(smc) ;
+
+ switch (inpw(PLC(np,PL_STATUS_A)) & PL_LINE_ST) {
+ case PL_L_NLS : ls = "NOISE" ; break ;
+ case PL_L_ALS : ls = "ACTIV" ; break ;
+ case PL_L_UND : ls = "UNDEF" ; break ;
+ case PL_L_ILS4: ls = "ILS 4" ; break ;
+ case PL_L_QLS : ls = "QLS" ; break ;
+ case PL_L_MLS : ls = "MLS" ; break ;
+ case PL_L_HLS : ls = "HLS" ; break ;
+ case PL_L_ILS16:ls = "ILS16" ; break ;
+#ifdef lint
+ default: ls = "unknown" ; break ;
+#endif
+ }
+ return(ls) ;
+}
+
+char *get_pcmstate(struct s_smc *smc, int np)
+{
+ char *pcs ;
+
+ SK_UNUSED(smc) ;
+
+ switch (inpw(PLC(np,PL_STATUS_B)) & PL_PCM_STATE) {
+ case PL_PC0 : pcs = "OFF" ; break ;
+ case PL_PC1 : pcs = "BREAK" ; break ;
+ case PL_PC2 : pcs = "TRACE" ; break ;
+ case PL_PC3 : pcs = "CONNECT"; break ;
+ case PL_PC4 : pcs = "NEXT" ; break ;
+ case PL_PC5 : pcs = "SIGNAL" ; break ;
+ case PL_PC6 : pcs = "JOIN" ; break ;
+ case PL_PC7 : pcs = "VERIFY" ; break ;
+ case PL_PC8 : pcs = "ACTIV" ; break ;
+ case PL_PC9 : pcs = "MAINT" ; break ;
+ default : pcs = "UNKNOWN" ; break ;
+ }
+ return(pcs) ;
+}
+
+void list_phy(struct s_smc *smc)
+{
+ struct s_plc *plc ;
+ int np ;
+
+ for (np = 0 ; np < NUMPHYS ; np++) {
+ plc = &smc->y[np].plc ;
+ printf("PHY %d:\tERRORS\t\t\tBREAK_REASONS\t\tSTATES:\n",np) ;
+ printf("\tsoft_error: %ld \t\tPC_Start : %ld\n",
+ plc->soft_err,plc->b_pcs);
+ printf("\tparity_err: %ld \t\tTPC exp. : %ld\t\tLine: %s\n",
+ plc->parity_err,plc->b_tpc,get_linestate(smc,np)) ;
+ printf("\tebuf_error: %ld \t\tTNE exp. : %ld\n",
+ plc->ebuf_err,plc->b_tne) ;
+ printf("\tphyinvalid: %ld \t\tQLS det. : %ld\t\tPCM : %s\n",
+ plc->phyinv,plc->b_qls,get_pcmstate(smc,np)) ;
+ printf("\tviosym_ctr: %ld \t\tILS det. : %ld\n",
+ plc->vsym_ctr,plc->b_ils) ;
+ printf("\tmingap_ctr: %ld \t\tHLS det. : %ld\n",
+ plc->mini_ctr,plc->b_hls) ;
+ printf("\tnodepr_err: %ld\n",plc->np_err) ;
+ printf("\tTPC_exp : %ld\n",plc->tpc_exp) ;
+ printf("\tLEM_err : %ld\n",smc->y[np].lem.lem_errors) ;
+ }
+}
+
+
+#ifdef CONCENTRATOR
+void pcm_lem_dump(struct s_smc *smc)
+{
+ int i ;
+ struct s_phy *phy ;
+ struct fddi_mib_p *mib ;
+
+ char *entostring() ;
+
+ printf("PHY errors BER\n") ;
+ printf("----------------------\n") ;
+ for (i = 0,phy = smc->y ; i < NUMPHYS ; i++,phy++) {
+ if (!plc_is_installed(smc,i))
+ continue ;
+ mib = phy->mib ;
+ printf("%s\t%ld\t10E-%d\n",
+ entostring(smc,ENTITY_PHY(i)),
+ mib->fddiPORTLem_Ct,
+ mib->fddiPORTLer_Estimate) ;
+ }
+}
+#endif
+#endif
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