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79ea13ce07
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2058 lines
52 KiB
C
2058 lines
52 KiB
C
/******************************************************************************
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*
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* (C)Copyright 1998,1999 SysKonnect,
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* a business unit of Schneider & Koch & Co. Datensysteme GmbH.
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*
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* See the file "skfddi.c" for further information.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* The information in this file is provided "AS IS" without warranty.
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*
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******************************************************************************/
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#include "h/types.h"
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#include "h/fddi.h"
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#include "h/smc.h"
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#include "h/smt_p.h"
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#include <linux/bitrev.h>
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#define KERNEL
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#include "h/smtstate.h"
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#ifndef lint
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static const char ID_sccs[] = "@(#)smt.c 2.43 98/11/23 (C) SK " ;
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#endif
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/*
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* FC in SMbuf
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*/
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#define m_fc(mb) ((mb)->sm_data[0])
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#define SMT_TID_MAGIC 0x1f0a7b3c
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#ifdef DEBUG
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static const char *const smt_type_name[] = {
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"SMT_00??", "SMT_INFO", "SMT_02??", "SMT_03??",
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"SMT_04??", "SMT_05??", "SMT_06??", "SMT_07??",
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"SMT_08??", "SMT_09??", "SMT_0A??", "SMT_0B??",
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"SMT_0C??", "SMT_0D??", "SMT_0E??", "SMT_NSA"
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} ;
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static const char *const smt_class_name[] = {
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"UNKNOWN","NIF","SIF_CONFIG","SIF_OPER","ECF","RAF","RDF",
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"SRF","PMF_GET","PMF_SET","ESF"
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} ;
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#endif
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#define LAST_CLASS (SMT_PMF_SET)
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static const struct fddi_addr SMT_Unknown = {
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{ 0,0,0x1f,0,0,0 }
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} ;
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/*
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* external variables
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*/
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extern const struct fddi_addr fddi_broadcast ;
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/*
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* external functions
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*/
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int pcm_status_twisted(struct s_smc *smc);
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/*
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* function prototypes
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*/
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#ifdef LITTLE_ENDIAN
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static int smt_swap_short(u_short s);
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#endif
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static int mac_index(struct s_smc *smc, int mac);
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static int phy_index(struct s_smc *smc, int phy);
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static int mac_con_resource_index(struct s_smc *smc, int mac);
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static int phy_con_resource_index(struct s_smc *smc, int phy);
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static void smt_send_rdf(struct s_smc *smc, SMbuf *rej, int fc, int reason,
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int local);
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static void smt_send_nif(struct s_smc *smc, const struct fddi_addr *dest,
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int fc, u_long tid, int type, int local);
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static void smt_send_ecf(struct s_smc *smc, struct fddi_addr *dest, int fc,
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u_long tid, int type, int len);
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static void smt_echo_test(struct s_smc *smc, int dna);
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static void smt_send_sif_config(struct s_smc *smc, struct fddi_addr *dest,
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u_long tid, int local);
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static void smt_send_sif_operation(struct s_smc *smc, struct fddi_addr *dest,
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u_long tid, int local);
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#ifdef LITTLE_ENDIAN
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static void smt_string_swap(char *data, const char *format, int len);
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#endif
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static void smt_add_frame_len(SMbuf *mb, int len);
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static void smt_fill_una(struct s_smc *smc, struct smt_p_una *una);
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static void smt_fill_sde(struct s_smc *smc, struct smt_p_sde *sde);
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static void smt_fill_state(struct s_smc *smc, struct smt_p_state *state);
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static void smt_fill_timestamp(struct s_smc *smc, struct smt_p_timestamp *ts);
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static void smt_fill_policy(struct s_smc *smc, struct smt_p_policy *policy);
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static void smt_fill_latency(struct s_smc *smc, struct smt_p_latency *latency);
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static void smt_fill_neighbor(struct s_smc *smc, struct smt_p_neighbor *neighbor);
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static int smt_fill_path(struct s_smc *smc, struct smt_p_path *path);
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static void smt_fill_mac_status(struct s_smc *smc, struct smt_p_mac_status *st);
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static void smt_fill_lem(struct s_smc *smc, struct smt_p_lem *lem, int phy);
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static void smt_fill_version(struct s_smc *smc, struct smt_p_version *vers);
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static void smt_fill_fsc(struct s_smc *smc, struct smt_p_fsc *fsc);
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static void smt_fill_mac_counter(struct s_smc *smc, struct smt_p_mac_counter *mc);
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static void smt_fill_mac_fnc(struct s_smc *smc, struct smt_p_mac_fnc *fnc);
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static void smt_fill_manufacturer(struct s_smc *smc,
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struct smp_p_manufacturer *man);
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static void smt_fill_user(struct s_smc *smc, struct smp_p_user *user);
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static void smt_fill_setcount(struct s_smc *smc, struct smt_p_setcount *setcount);
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static void smt_fill_echo(struct s_smc *smc, struct smt_p_echo *echo, u_long seed,
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int len);
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static void smt_clear_una_dna(struct s_smc *smc);
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static void smt_clear_old_una_dna(struct s_smc *smc);
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#ifdef CONCENTRATOR
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static int entity_to_index(void);
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#endif
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static void update_dac(struct s_smc *smc, int report);
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static int div_ratio(u_long upper, u_long lower);
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#ifdef USE_CAN_ADDR
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static void hwm_conv_can(struct s_smc *smc, char *data, int len);
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#else
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#define hwm_conv_can(smc,data,len)
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#endif
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static inline int is_my_addr(const struct s_smc *smc,
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const struct fddi_addr *addr)
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{
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return(*(short *)(&addr->a[0]) ==
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*(short *)(&smc->mib.m[MAC0].fddiMACSMTAddress.a[0])
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&& *(short *)(&addr->a[2]) ==
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*(short *)(&smc->mib.m[MAC0].fddiMACSMTAddress.a[2])
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&& *(short *)(&addr->a[4]) ==
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*(short *)(&smc->mib.m[MAC0].fddiMACSMTAddress.a[4])) ;
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}
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static inline int is_broadcast(const struct fddi_addr *addr)
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{
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return(*(u_short *)(&addr->a[0]) == 0xffff &&
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*(u_short *)(&addr->a[2]) == 0xffff &&
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*(u_short *)(&addr->a[4]) == 0xffff ) ;
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}
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static inline int is_individual(const struct fddi_addr *addr)
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{
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return(!(addr->a[0] & GROUP_ADDR)) ;
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}
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static inline int is_equal(const struct fddi_addr *addr1,
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const struct fddi_addr *addr2)
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{
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return(*(u_short *)(&addr1->a[0]) == *(u_short *)(&addr2->a[0]) &&
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*(u_short *)(&addr1->a[2]) == *(u_short *)(&addr2->a[2]) &&
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*(u_short *)(&addr1->a[4]) == *(u_short *)(&addr2->a[4]) ) ;
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}
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/*
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* list of mandatory paras in frames
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*/
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static const u_short plist_nif[] = { SMT_P_UNA,SMT_P_SDE,SMT_P_STATE,0 } ;
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/*
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* init SMT agent
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*/
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void smt_agent_init(struct s_smc *smc)
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{
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int i ;
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/*
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* get MAC address
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*/
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smc->mib.m[MAC0].fddiMACSMTAddress = smc->hw.fddi_home_addr ;
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/*
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* get OUI address from driver (bia == built-in-address)
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*/
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smc->mib.fddiSMTStationId.sid_oem[0] = 0 ;
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smc->mib.fddiSMTStationId.sid_oem[1] = 0 ;
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driver_get_bia(smc,&smc->mib.fddiSMTStationId.sid_node) ;
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for (i = 0 ; i < 6 ; i ++) {
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smc->mib.fddiSMTStationId.sid_node.a[i] =
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bitrev8(smc->mib.fddiSMTStationId.sid_node.a[i]);
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}
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smc->mib.fddiSMTManufacturerData[0] =
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smc->mib.fddiSMTStationId.sid_node.a[0] ;
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smc->mib.fddiSMTManufacturerData[1] =
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smc->mib.fddiSMTStationId.sid_node.a[1] ;
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smc->mib.fddiSMTManufacturerData[2] =
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smc->mib.fddiSMTStationId.sid_node.a[2] ;
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smc->sm.smt_tid = 0 ;
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smc->mib.m[MAC0].fddiMACDupAddressTest = DA_NONE ;
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smc->mib.m[MAC0].fddiMACUNDA_Flag = FALSE ;
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#ifndef SLIM_SMT
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smt_clear_una_dna(smc) ;
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smt_clear_old_una_dna(smc) ;
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#endif
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for (i = 0 ; i < SMT_MAX_TEST ; i++)
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smc->sm.pend[i] = 0 ;
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smc->sm.please_reconnect = 0 ;
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smc->sm.uniq_ticks = 0 ;
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}
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/*
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* SMT task
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* forever
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* delay 30 seconds
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* send NIF
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* check tvu & tvd
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* end
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*/
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void smt_agent_task(struct s_smc *smc)
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{
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smt_timer_start(smc,&smc->sm.smt_timer, (u_long)1000000L,
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EV_TOKEN(EVENT_SMT,SM_TIMER)) ;
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DB_SMT("SMT agent task\n",0,0) ;
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}
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#ifndef SMT_REAL_TOKEN_CT
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void smt_emulate_token_ct(struct s_smc *smc, int mac_index)
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{
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u_long count;
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u_long time;
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time = smt_get_time();
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count = ((time - smc->sm.last_tok_time[mac_index]) *
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100)/TICKS_PER_SECOND;
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/*
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* Only when ring is up we will have a token count. The
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* flag is unfortunatly a single instance value. This
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* doesn't matter now, because we currently have only
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* one MAC instance.
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*/
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if (smc->hw.mac_ring_is_up){
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smc->mib.m[mac_index].fddiMACToken_Ct += count;
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}
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/* Remember current time */
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smc->sm.last_tok_time[mac_index] = time;
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}
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#endif
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/*ARGSUSED1*/
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void smt_event(struct s_smc *smc, int event)
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{
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u_long time ;
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#ifndef SMT_REAL_TOKEN_CT
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int i ;
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#endif
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if (smc->sm.please_reconnect) {
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smc->sm.please_reconnect -- ;
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if (smc->sm.please_reconnect == 0) {
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/* Counted down */
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queue_event(smc,EVENT_ECM,EC_CONNECT) ;
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}
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}
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if (event == SM_FAST)
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return ;
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/*
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* timer for periodic cleanup in driver
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* reset and start the watchdog (FM2)
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* ESS timer
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* SBA timer
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*/
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smt_timer_poll(smc) ;
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smt_start_watchdog(smc) ;
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#ifndef SLIM_SMT
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#ifndef BOOT
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#ifdef ESS
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ess_timer_poll(smc) ;
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#endif
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#endif
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#ifdef SBA
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sba_timer_poll(smc) ;
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#endif
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smt_srf_event(smc,0,0,0) ;
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#endif /* no SLIM_SMT */
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time = smt_get_time() ;
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if (time - smc->sm.smt_last_lem >= TICKS_PER_SECOND*8) {
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/*
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* Use 8 sec. for the time intervall, it simplifies the
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* LER estimation.
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*/
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struct fddi_mib_m *mib ;
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u_long upper ;
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u_long lower ;
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int cond ;
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int port;
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struct s_phy *phy ;
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/*
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* calculate LEM bit error rate
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*/
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sm_lem_evaluate(smc) ;
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smc->sm.smt_last_lem = time ;
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/*
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* check conditions
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*/
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#ifndef SLIM_SMT
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mac_update_counter(smc) ;
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mib = smc->mib.m ;
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upper =
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(mib->fddiMACLost_Ct - mib->fddiMACOld_Lost_Ct) +
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(mib->fddiMACError_Ct - mib->fddiMACOld_Error_Ct) ;
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lower =
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(mib->fddiMACFrame_Ct - mib->fddiMACOld_Frame_Ct) +
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(mib->fddiMACLost_Ct - mib->fddiMACOld_Lost_Ct) ;
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mib->fddiMACFrameErrorRatio = div_ratio(upper,lower) ;
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cond =
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((!mib->fddiMACFrameErrorThreshold &&
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mib->fddiMACError_Ct != mib->fddiMACOld_Error_Ct) ||
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(mib->fddiMACFrameErrorRatio >
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mib->fddiMACFrameErrorThreshold)) ;
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if (cond != mib->fddiMACFrameErrorFlag)
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smt_srf_event(smc,SMT_COND_MAC_FRAME_ERROR,
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INDEX_MAC,cond) ;
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upper =
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(mib->fddiMACNotCopied_Ct - mib->fddiMACOld_NotCopied_Ct) ;
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lower =
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upper +
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(mib->fddiMACCopied_Ct - mib->fddiMACOld_Copied_Ct) ;
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mib->fddiMACNotCopiedRatio = div_ratio(upper,lower) ;
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cond =
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((!mib->fddiMACNotCopiedThreshold &&
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mib->fddiMACNotCopied_Ct !=
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mib->fddiMACOld_NotCopied_Ct)||
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(mib->fddiMACNotCopiedRatio >
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mib->fddiMACNotCopiedThreshold)) ;
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if (cond != mib->fddiMACNotCopiedFlag)
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smt_srf_event(smc,SMT_COND_MAC_NOT_COPIED,
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INDEX_MAC,cond) ;
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/*
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* set old values
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*/
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mib->fddiMACOld_Frame_Ct = mib->fddiMACFrame_Ct ;
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mib->fddiMACOld_Copied_Ct = mib->fddiMACCopied_Ct ;
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mib->fddiMACOld_Error_Ct = mib->fddiMACError_Ct ;
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mib->fddiMACOld_Lost_Ct = mib->fddiMACLost_Ct ;
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mib->fddiMACOld_NotCopied_Ct = mib->fddiMACNotCopied_Ct ;
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/*
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* Check port EBError Condition
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*/
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for (port = 0; port < NUMPHYS; port ++) {
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phy = &smc->y[port] ;
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if (!phy->mib->fddiPORTHardwarePresent) {
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continue;
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}
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cond = (phy->mib->fddiPORTEBError_Ct -
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phy->mib->fddiPORTOldEBError_Ct > 5) ;
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/* If ratio is more than 5 in 8 seconds
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* Set the condition.
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*/
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smt_srf_event(smc,SMT_COND_PORT_EB_ERROR,
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(int) (INDEX_PORT+ phy->np) ,cond) ;
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/*
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* set old values
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*/
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phy->mib->fddiPORTOldEBError_Ct =
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phy->mib->fddiPORTEBError_Ct ;
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}
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#endif /* no SLIM_SMT */
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}
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#ifndef SLIM_SMT
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if (time - smc->sm.smt_last_notify >= (u_long)
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(smc->mib.fddiSMTTT_Notify * TICKS_PER_SECOND) ) {
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/*
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* we can either send an announcement or a request
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* a request will trigger a reply so that we can update
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* our dna
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* note: same tid must be used until reply is received
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*/
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if (!smc->sm.pend[SMT_TID_NIF])
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smc->sm.pend[SMT_TID_NIF] = smt_get_tid(smc) ;
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smt_send_nif(smc,&fddi_broadcast, FC_SMT_NSA,
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smc->sm.pend[SMT_TID_NIF], SMT_REQUEST,0) ;
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smc->sm.smt_last_notify = time ;
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}
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/*
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* check timer
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*/
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if (smc->sm.smt_tvu &&
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time - smc->sm.smt_tvu > 228*TICKS_PER_SECOND) {
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DB_SMT("SMT : UNA expired\n",0,0) ;
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smc->sm.smt_tvu = 0 ;
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if (!is_equal(&smc->mib.m[MAC0].fddiMACUpstreamNbr,
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&SMT_Unknown)){
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/* Do not update unknown address */
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smc->mib.m[MAC0].fddiMACOldUpstreamNbr=
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smc->mib.m[MAC0].fddiMACUpstreamNbr ;
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}
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smc->mib.m[MAC0].fddiMACUpstreamNbr = SMT_Unknown ;
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smc->mib.m[MAC0].fddiMACUNDA_Flag = FALSE ;
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/*
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* Make sure the fddiMACUNDA_Flag = FALSE is
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* included in the SRF so we don't generate
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* a separate SRF for the deassertion of this
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* condition
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*/
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update_dac(smc,0) ;
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smt_srf_event(smc, SMT_EVENT_MAC_NEIGHBOR_CHANGE,
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INDEX_MAC,0) ;
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}
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if (smc->sm.smt_tvd &&
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time - smc->sm.smt_tvd > 228*TICKS_PER_SECOND) {
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DB_SMT("SMT : DNA expired\n",0,0) ;
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smc->sm.smt_tvd = 0 ;
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if (!is_equal(&smc->mib.m[MAC0].fddiMACDownstreamNbr,
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&SMT_Unknown)){
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/* 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)) ;
|
|
}
|
|
|
|
static int div_ratio(u_long upper, u_long lower)
|
|
{
|
|
if ((upper<<16L) < upper)
|
|
upper = 0xffff0000L ;
|
|
else
|
|
upper <<= 16L ;
|
|
if (!lower)
|
|
return(0) ;
|
|
return((int)(upper/lower)) ;
|
|
}
|
|
|
|
#ifndef SLIM_SMT
|
|
|
|
/*
|
|
* receive packet handler
|
|
*/
|
|
void smt_received_pack(struct s_smc *smc, SMbuf *mb, int fs)
|
|
/* int fs; frame status */
|
|
{
|
|
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) ;
|
|
|
|
/* check destination address */
|
|
if (is_individual(&sm->smt_dest) && !is_my_addr(smc,&sm->smt_dest)) {
|
|
smt_free_mbuf(smc,mb) ;
|
|
return ;
|
|
}
|
|
#if 0 /* for DUP recognition, do NOT filter them */
|
|
/* ignore loop back packets */
|
|
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
|
|
/*
|
|
* check if NSA frame
|
|
*/
|
|
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
|
|
|
|
/*
|
|
* ignore any packet with NSA and A-indicator set
|
|
*/
|
|
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 ;
|
|
}
|
|
|
|
/*
|
|
* ignore frames with illegal length
|
|
*/
|
|
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 ;
|
|
}
|
|
|
|
/*
|
|
* check SMT version
|
|
*/
|
|
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 ;
|
|
|
|
/* set my UNA */
|
|
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)){
|
|
/* Do not update unknown address */
|
|
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 ;
|
|
/* set my DNA */
|
|
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)){
|
|
/* Do not update unknown address */
|
|
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 : /* station information */
|
|
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 : /* station information */
|
|
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 : /* echo frame */
|
|
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) ;
|
|
|
|
/* set destination addr. & reply */
|
|
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 ; /* DON'T free mbuf */
|
|
}
|
|
default :
|
|
illegal = 1 ;
|
|
break ;
|
|
}
|
|
break ;
|
|
#ifndef BOOT
|
|
case SMT_RAF : /* resource allocation */
|
|
#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 : /* request denied */
|
|
smc->mib.priv.fddiPRIVRDF_Rx++ ;
|
|
break ;
|
|
case SMT_ESF : /* extended service - not supported */
|
|
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 ;
|
|
/* update statistics */
|
|
if (sm->smt_class == SMT_PMF_GET)
|
|
smc->mib.priv.fddiPRIVPMF_Get_Rx++ ;
|
|
else
|
|
smc->mib.priv.fddiPRIVPMF_Set_Rx++ ;
|
|
/*
|
|
* ignore PMF SET with I/G set
|
|
*/
|
|
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 ;
|
|
/*
|
|
* For frames with unknown class:
|
|
* we need to send a RDF frame according to 8.1.3.1.1,
|
|
* only if it is a REQUEST.
|
|
*/
|
|
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) ;
|
|
}
|
|
|
|
static void update_dac(struct s_smc *smc, int report)
|
|
{
|
|
int cond ;
|
|
|
|
cond = ( smc->mib.m[MAC0].fddiMACUNDA_Flag |
|
|
smc->mib.m[MAC0].fddiMACDA_Flag) != 0 ;
|
|
if (report && (cond != smc->mib.m[MAC0].fddiMACDuplicateAddressCond))
|
|
smt_srf_event(smc, SMT_COND_MAC_DUP_ADDR,INDEX_MAC,cond) ;
|
|
else
|
|
smc->mib.m[MAC0].fddiMACDuplicateAddressCond = cond ;
|
|
}
|
|
|
|
/*
|
|
* send SMT frame
|
|
* set source address
|
|
* set station ID
|
|
* send frame
|
|
*/
|
|
void smt_send_frame(struct s_smc *smc, SMbuf *mb, int fc, int local)
|
|
/* SMbuf *mb; buffer to send */
|
|
/* int fc; FC value */
|
|
{
|
|
struct smt_header *sm ;
|
|
|
|
if (!smc->r.sm_ma_avail && !local) {
|
|
smt_free_mbuf(smc,mb) ;
|
|
return ;
|
|
}
|
|
sm = smtod(mb,struct smt_header *) ;
|
|
sm->smt_source = smc->mib.m[MAC0].fddiMACSMTAddress ;
|
|
sm->smt_sid = smc->mib.fddiSMTStationId ;
|
|
|
|
smt_swap_para(sm,(int) mb->sm_len,0) ; /* swap para & header */
|
|
hwm_conv_can(smc,(char *)sm,12) ; /* convert SA and DA */
|
|
smc->mib.m[MAC0].fddiMACSMTTransmit_Ct++ ;
|
|
smt_send_mbuf(smc,mb,local ? FC_SMT_LOC : fc) ;
|
|
}
|
|
|
|
/*
|
|
* generate and send RDF
|
|
*/
|
|
static void smt_send_rdf(struct s_smc *smc, SMbuf *rej, int fc, int reason,
|
|
int local)
|
|
/* SMbuf *rej; mbuf of offending frame */
|
|
/* int fc; FC of denied frame */
|
|
/* int reason; reason code */
|
|
{
|
|
SMbuf *mb ;
|
|
struct smt_header *sm ; /* header of offending frame */
|
|
struct smt_rdf *rdf ;
|
|
int len ;
|
|
int frame_len ;
|
|
|
|
sm = smtod(rej,struct smt_header *) ;
|
|
if (sm->smt_type != SMT_REQUEST)
|
|
return ;
|
|
|
|
DB_SMT("SMT: sending RDF to %s,reason = 0x%x\n",
|
|
addr_to_string(&sm->smt_source),reason) ;
|
|
|
|
|
|
/*
|
|
* note: get framelength from MAC length, NOT from SMT header
|
|
* smt header length is included in sm_len
|
|
*/
|
|
frame_len = rej->sm_len ;
|
|
|
|
if (!(mb=smt_build_frame(smc,SMT_RDF,SMT_REPLY,sizeof(struct smt_rdf))))
|
|
return ;
|
|
rdf = smtod(mb,struct smt_rdf *) ;
|
|
rdf->smt.smt_tid = sm->smt_tid ; /* use TID from sm */
|
|
rdf->smt.smt_dest = sm->smt_source ; /* set dest = source */
|
|
|
|
/* set P12 */
|
|
rdf->reason.para.p_type = SMT_P_REASON ;
|
|
rdf->reason.para.p_len = sizeof(struct smt_p_reason) - PARA_LEN ;
|
|
rdf->reason.rdf_reason = reason ;
|
|
|
|
/* set P14 */
|
|
rdf->version.para.p_type = SMT_P_VERSION ;
|
|
rdf->version.para.p_len = sizeof(struct smt_p_version) - PARA_LEN ;
|
|
rdf->version.v_pad = 0 ;
|
|
rdf->version.v_n = 1 ;
|
|
rdf->version.v_index = 1 ;
|
|
rdf->version.v_version[0] = SMT_VID_2 ;
|
|
rdf->version.v_pad2 = 0 ;
|
|
|
|
/* set P13 */
|
|
if ((unsigned) frame_len <= SMT_MAX_INFO_LEN - sizeof(*rdf) +
|
|
2*sizeof(struct smt_header))
|
|
len = frame_len ;
|
|
else
|
|
len = SMT_MAX_INFO_LEN - sizeof(*rdf) +
|
|
2*sizeof(struct smt_header) ;
|
|
/* make length multiple of 4 */
|
|
len &= ~3 ;
|
|
rdf->refused.para.p_type = SMT_P_REFUSED ;
|
|
/* length of para is smt_frame + ref_fc */
|
|
rdf->refused.para.p_len = len + 4 ;
|
|
rdf->refused.ref_fc = fc ;
|
|
|
|
/* swap it back */
|
|
smt_swap_para(sm,frame_len,0) ;
|
|
|
|
memcpy((char *) &rdf->refused.ref_header,(char *) sm,len) ;
|
|
|
|
len -= sizeof(struct smt_header) ;
|
|
mb->sm_len += len ;
|
|
rdf->smt.smt_len += len ;
|
|
|
|
dump_smt(smc,(struct smt_header *)rdf,"RDF") ;
|
|
smc->mib.priv.fddiPRIVRDF_Tx++ ;
|
|
smt_send_frame(smc,mb,FC_SMT_INFO,local) ;
|
|
}
|
|
|
|
/*
|
|
* generate and send NIF
|
|
*/
|
|
static void smt_send_nif(struct s_smc *smc, const struct fddi_addr *dest,
|
|
int fc, u_long tid, int type, int local)
|
|
/* struct fddi_addr *dest; dest address */
|
|
/* int fc; frame control */
|
|
/* u_long tid; transaction id */
|
|
/* int type; frame type */
|
|
{
|
|
struct smt_nif *nif ;
|
|
SMbuf *mb ;
|
|
|
|
if (!(mb = smt_build_frame(smc,SMT_NIF,type,sizeof(struct smt_nif))))
|
|
return ;
|
|
nif = smtod(mb, struct smt_nif *) ;
|
|
smt_fill_una(smc,&nif->una) ; /* set UNA */
|
|
smt_fill_sde(smc,&nif->sde) ; /* set station descriptor */
|
|
smt_fill_state(smc,&nif->state) ; /* set state information */
|
|
#ifdef SMT6_10
|
|
smt_fill_fsc(smc,&nif->fsc) ; /* set frame status cap. */
|
|
#endif
|
|
nif->smt.smt_dest = *dest ; /* destination address */
|
|
nif->smt.smt_tid = tid ; /* transaction ID */
|
|
dump_smt(smc,(struct smt_header *)nif,"NIF") ;
|
|
smt_send_frame(smc,mb,fc,local) ;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
/*
|
|
* send NIF request (test purpose)
|
|
*/
|
|
static void smt_send_nif_request(struct s_smc *smc, struct fddi_addr *dest)
|
|
{
|
|
smc->sm.pend[SMT_TID_NIF_TEST] = smt_get_tid(smc) ;
|
|
smt_send_nif(smc,dest, FC_SMT_INFO, smc->sm.pend[SMT_TID_NIF_TEST],
|
|
SMT_REQUEST,0) ;
|
|
}
|
|
|
|
/*
|
|
* send ECF request (test purpose)
|
|
*/
|
|
static void smt_send_ecf_request(struct s_smc *smc, struct fddi_addr *dest,
|
|
int len)
|
|
{
|
|
smc->sm.pend[SMT_TID_ECF] = smt_get_tid(smc) ;
|
|
smt_send_ecf(smc,dest, FC_SMT_INFO, smc->sm.pend[SMT_TID_ECF],
|
|
SMT_REQUEST,len) ;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* echo test
|
|
*/
|
|
static void smt_echo_test(struct s_smc *smc, int dna)
|
|
{
|
|
u_long tid ;
|
|
|
|
smc->sm.pend[dna ? SMT_TID_ECF_DNA : SMT_TID_ECF_UNA] =
|
|
tid = smt_get_tid(smc) ;
|
|
smt_send_ecf(smc, dna ?
|
|
&smc->mib.m[MAC0].fddiMACDownstreamNbr :
|
|
&smc->mib.m[MAC0].fddiMACUpstreamNbr,
|
|
FC_SMT_INFO,tid, SMT_REQUEST, (SMT_TEST_ECHO_LEN & ~3)-8) ;
|
|
}
|
|
|
|
/*
|
|
* generate and send ECF
|
|
*/
|
|
static void smt_send_ecf(struct s_smc *smc, struct fddi_addr *dest, int fc,
|
|
u_long tid, int type, int len)
|
|
/* struct fddi_addr *dest; dest address */
|
|
/* int fc; frame control */
|
|
/* u_long tid; transaction id */
|
|
/* int type; frame type */
|
|
/* int len; frame length */
|
|
{
|
|
struct smt_ecf *ecf ;
|
|
SMbuf *mb ;
|
|
|
|
if (!(mb = smt_build_frame(smc,SMT_ECF,type,SMT_ECF_LEN + len)))
|
|
return ;
|
|
ecf = smtod(mb, struct smt_ecf *) ;
|
|
|
|
smt_fill_echo(smc,&ecf->ec_echo,tid,len) ; /* set ECHO */
|
|
ecf->smt.smt_dest = *dest ; /* destination address */
|
|
ecf->smt.smt_tid = tid ; /* transaction ID */
|
|
smc->mib.priv.fddiPRIVECF_Req_Tx++ ;
|
|
smt_send_frame(smc,mb,fc,0) ;
|
|
}
|
|
|
|
/*
|
|
* generate and send SIF config response
|
|
*/
|
|
|
|
static void smt_send_sif_config(struct s_smc *smc, struct fddi_addr *dest,
|
|
u_long tid, int local)
|
|
/* struct fddi_addr *dest; dest address */
|
|
/* u_long tid; transaction id */
|
|
{
|
|
struct smt_sif_config *sif ;
|
|
SMbuf *mb ;
|
|
int len ;
|
|
if (!(mb = smt_build_frame(smc,SMT_SIF_CONFIG,SMT_REPLY,
|
|
SIZEOF_SMT_SIF_CONFIG)))
|
|
return ;
|
|
|
|
sif = smtod(mb, struct smt_sif_config *) ;
|
|
smt_fill_timestamp(smc,&sif->ts) ; /* set time stamp */
|
|
smt_fill_sde(smc,&sif->sde) ; /* set station descriptor */
|
|
smt_fill_version(smc,&sif->version) ; /* set version information */
|
|
smt_fill_state(smc,&sif->state) ; /* set state information */
|
|
smt_fill_policy(smc,&sif->policy) ; /* set station policy */
|
|
smt_fill_latency(smc,&sif->latency); /* set station latency */
|
|
smt_fill_neighbor(smc,&sif->neighbor); /* set station neighbor */
|
|
smt_fill_setcount(smc,&sif->setcount) ; /* set count */
|
|
len = smt_fill_path(smc,&sif->path); /* set station path descriptor*/
|
|
sif->smt.smt_dest = *dest ; /* destination address */
|
|
sif->smt.smt_tid = tid ; /* transaction ID */
|
|
smt_add_frame_len(mb,len) ; /* adjust length fields */
|
|
dump_smt(smc,(struct smt_header *)sif,"SIF Configuration Reply") ;
|
|
smt_send_frame(smc,mb,FC_SMT_INFO,local) ;
|
|
}
|
|
|
|
/*
|
|
* generate and send SIF operation response
|
|
*/
|
|
|
|
static void smt_send_sif_operation(struct s_smc *smc, struct fddi_addr *dest,
|
|
u_long tid, int local)
|
|
/* struct fddi_addr *dest; dest address */
|
|
/* u_long tid; transaction id */
|
|
{
|
|
struct smt_sif_operation *sif ;
|
|
SMbuf *mb ;
|
|
int ports ;
|
|
int i ;
|
|
|
|
ports = NUMPHYS ;
|
|
#ifndef CONCENTRATOR
|
|
if (smc->s.sas == SMT_SAS)
|
|
ports = 1 ;
|
|
#endif
|
|
|
|
if (!(mb = smt_build_frame(smc,SMT_SIF_OPER,SMT_REPLY,
|
|
SIZEOF_SMT_SIF_OPERATION+ports*sizeof(struct smt_p_lem))))
|
|
return ;
|
|
sif = smtod(mb, struct smt_sif_operation *) ;
|
|
smt_fill_timestamp(smc,&sif->ts) ; /* set time stamp */
|
|
smt_fill_mac_status(smc,&sif->status) ; /* set mac status */
|
|
smt_fill_mac_counter(smc,&sif->mc) ; /* set mac counter field */
|
|
smt_fill_mac_fnc(smc,&sif->fnc) ; /* set frame not copied counter */
|
|
smt_fill_manufacturer(smc,&sif->man) ; /* set manufacturer field */
|
|
smt_fill_user(smc,&sif->user) ; /* set user field */
|
|
smt_fill_setcount(smc,&sif->setcount) ; /* set count */
|
|
/*
|
|
* set link error mon information
|
|
*/
|
|
if (ports == 1) {
|
|
smt_fill_lem(smc,sif->lem,PS) ;
|
|
}
|
|
else {
|
|
for (i = 0 ; i < ports ; i++) {
|
|
smt_fill_lem(smc,&sif->lem[i],i) ;
|
|
}
|
|
}
|
|
|
|
sif->smt.smt_dest = *dest ; /* destination address */
|
|
sif->smt.smt_tid = tid ; /* transaction ID */
|
|
dump_smt(smc,(struct smt_header *)sif,"SIF Operation Reply") ;
|
|
smt_send_frame(smc,mb,FC_SMT_INFO,local) ;
|
|
}
|
|
|
|
/*
|
|
* get and initialize SMT frame
|
|
*/
|
|
SMbuf *smt_build_frame(struct s_smc *smc, int class, int type,
|
|
int length)
|
|
{
|
|
SMbuf *mb ;
|
|
struct smt_header *smt ;
|
|
|
|
#if 0
|
|
if (!smc->r.sm_ma_avail) {
|
|
return(0) ;
|
|
}
|
|
#endif
|
|
if (!(mb = smt_get_mbuf(smc)))
|
|
return(mb) ;
|
|
|
|
mb->sm_len = length ;
|
|
smt = smtod(mb, struct smt_header *) ;
|
|
smt->smt_dest = fddi_broadcast ; /* set dest = broadcast */
|
|
smt->smt_class = class ;
|
|
smt->smt_type = type ;
|
|
switch (class) {
|
|
case SMT_NIF :
|
|
case SMT_SIF_CONFIG :
|
|
case SMT_SIF_OPER :
|
|
case SMT_ECF :
|
|
smt->smt_version = SMT_VID ;
|
|
break ;
|
|
default :
|
|
smt->smt_version = SMT_VID_2 ;
|
|
break ;
|
|
}
|
|
smt->smt_tid = smt_get_tid(smc) ; /* set transaction ID */
|
|
smt->smt_pad = 0 ;
|
|
smt->smt_len = length - sizeof(struct smt_header) ;
|
|
return(mb) ;
|
|
}
|
|
|
|
static void smt_add_frame_len(SMbuf *mb, int len)
|
|
{
|
|
struct smt_header *smt ;
|
|
|
|
smt = smtod(mb, struct smt_header *) ;
|
|
smt->smt_len += len ;
|
|
mb->sm_len += len ;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* fill values in UNA parameter
|
|
*/
|
|
static void smt_fill_una(struct s_smc *smc, struct smt_p_una *una)
|
|
{
|
|
SMTSETPARA(una,SMT_P_UNA) ;
|
|
una->una_pad = 0 ;
|
|
una->una_node = smc->mib.m[MAC0].fddiMACUpstreamNbr ;
|
|
}
|
|
|
|
/*
|
|
* fill values in SDE parameter
|
|
*/
|
|
static void smt_fill_sde(struct s_smc *smc, struct smt_p_sde *sde)
|
|
{
|
|
SMTSETPARA(sde,SMT_P_SDE) ;
|
|
sde->sde_non_master = smc->mib.fddiSMTNonMaster_Ct ;
|
|
sde->sde_master = smc->mib.fddiSMTMaster_Ct ;
|
|
sde->sde_mac_count = NUMMACS ; /* only 1 MAC */
|
|
#ifdef CONCENTRATOR
|
|
sde->sde_type = SMT_SDE_CONCENTRATOR ;
|
|
#else
|
|
sde->sde_type = SMT_SDE_STATION ;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* fill in values in station state parameter
|
|
*/
|
|
static void smt_fill_state(struct s_smc *smc, struct smt_p_state *state)
|
|
{
|
|
int top ;
|
|
int twist ;
|
|
|
|
SMTSETPARA(state,SMT_P_STATE) ;
|
|
state->st_pad = 0 ;
|
|
|
|
/* determine topology */
|
|
top = 0 ;
|
|
if (smc->mib.fddiSMTPeerWrapFlag) {
|
|
top |= SMT_ST_WRAPPED ; /* state wrapped */
|
|
}
|
|
#ifdef CONCENTRATOR
|
|
if (cfm_status_unattached(smc)) {
|
|
top |= SMT_ST_UNATTACHED ; /* unattached concentrator */
|
|
}
|
|
#endif
|
|
if ((twist = pcm_status_twisted(smc)) & 1) {
|
|
top |= SMT_ST_TWISTED_A ; /* twisted cable */
|
|
}
|
|
if (twist & 2) {
|
|
top |= SMT_ST_TWISTED_B ; /* twisted cable */
|
|
}
|
|
#ifdef OPT_SRF
|
|
top |= SMT_ST_SRF ;
|
|
#endif
|
|
if (pcm_rooted_station(smc))
|
|
top |= SMT_ST_ROOTED_S ;
|
|
if (smc->mib.a[0].fddiPATHSbaPayload != 0)
|
|
top |= SMT_ST_SYNC_SERVICE ;
|
|
state->st_topology = top ;
|
|
state->st_dupl_addr =
|
|
((smc->mib.m[MAC0].fddiMACDA_Flag ? SMT_ST_MY_DUPA : 0 ) |
|
|
(smc->mib.m[MAC0].fddiMACUNDA_Flag ? SMT_ST_UNA_DUPA : 0)) ;
|
|
}
|
|
|
|
/*
|
|
* fill values in timestamp parameter
|
|
*/
|
|
static void smt_fill_timestamp(struct s_smc *smc, struct smt_p_timestamp *ts)
|
|
{
|
|
|
|
SMTSETPARA(ts,SMT_P_TIMESTAMP) ;
|
|
smt_set_timestamp(smc,ts->ts_time) ;
|
|
}
|
|
|
|
void smt_set_timestamp(struct s_smc *smc, u_char *p)
|
|
{
|
|
u_long time ;
|
|
u_long utime ;
|
|
|
|
/*
|
|
* timestamp is 64 bits long ; resolution is 80 nS
|
|
* our clock resolution is 10mS
|
|
* 10mS/80ns = 125000 ~ 2^17 = 131072
|
|
*/
|
|
utime = smt_get_time() ;
|
|
time = utime * 100 ;
|
|
time /= TICKS_PER_SECOND ;
|
|
p[0] = 0 ;
|
|
p[1] = (u_char)((time>>(8+8+8+8-1)) & 1) ;
|
|
p[2] = (u_char)(time>>(8+8+8-1)) ;
|
|
p[3] = (u_char)(time>>(8+8-1)) ;
|
|
p[4] = (u_char)(time>>(8-1)) ;
|
|
p[5] = (u_char)(time<<1) ;
|
|
p[6] = (u_char)(smc->sm.uniq_ticks>>8) ;
|
|
p[7] = (u_char)smc->sm.uniq_ticks ;
|
|
/*
|
|
* make sure we don't wrap: restart whenever the upper digits change
|
|
*/
|
|
if (utime != smc->sm.uniq_time) {
|
|
smc->sm.uniq_ticks = 0 ;
|
|
}
|
|
smc->sm.uniq_ticks++ ;
|
|
smc->sm.uniq_time = utime ;
|
|
}
|
|
|
|
/*
|
|
* fill values in station policy parameter
|
|
*/
|
|
static void smt_fill_policy(struct s_smc *smc, struct smt_p_policy *policy)
|
|
{
|
|
int i ;
|
|
u_char *map ;
|
|
u_short in ;
|
|
u_short out ;
|
|
|
|
/*
|
|
* MIB para 101b (fddiSMTConnectionPolicy) coding
|
|
* is different from 0005 coding
|
|
*/
|
|
static u_char ansi_weirdness[16] = {
|
|
0,7,5,3,8,1,6,4,9,10,2,11,12,13,14,15
|
|
} ;
|
|
SMTSETPARA(policy,SMT_P_POLICY) ;
|
|
|
|
out = 0 ;
|
|
in = smc->mib.fddiSMTConnectionPolicy ;
|
|
for (i = 0, map = ansi_weirdness ; i < 16 ; i++) {
|
|
if (in & 1)
|
|
out |= (1<<*map) ;
|
|
in >>= 1 ;
|
|
map++ ;
|
|
}
|
|
policy->pl_config = smc->mib.fddiSMTConfigPolicy ;
|
|
policy->pl_connect = out ;
|
|
}
|
|
|
|
/*
|
|
* fill values in latency equivalent parameter
|
|
*/
|
|
static void smt_fill_latency(struct s_smc *smc, struct smt_p_latency *latency)
|
|
{
|
|
SMTSETPARA(latency,SMT_P_LATENCY) ;
|
|
|
|
latency->lt_phyout_idx1 = phy_index(smc,0) ;
|
|
latency->lt_latency1 = 10 ; /* in octets (byte clock) */
|
|
/*
|
|
* note: latency has two phy entries by definition
|
|
* for a SAS, the 2nd one is null
|
|
*/
|
|
if (smc->s.sas == SMT_DAS) {
|
|
latency->lt_phyout_idx2 = phy_index(smc,1) ;
|
|
latency->lt_latency2 = 10 ; /* in octets (byte clock) */
|
|
}
|
|
else {
|
|
latency->lt_phyout_idx2 = 0 ;
|
|
latency->lt_latency2 = 0 ;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* fill values in MAC neighbors parameter
|
|
*/
|
|
static void smt_fill_neighbor(struct s_smc *smc, struct smt_p_neighbor *neighbor)
|
|
{
|
|
SMTSETPARA(neighbor,SMT_P_NEIGHBORS) ;
|
|
|
|
neighbor->nb_mib_index = INDEX_MAC ;
|
|
neighbor->nb_mac_index = mac_index(smc,1) ;
|
|
neighbor->nb_una = smc->mib.m[MAC0].fddiMACUpstreamNbr ;
|
|
neighbor->nb_dna = smc->mib.m[MAC0].fddiMACDownstreamNbr ;
|
|
}
|
|
|
|
/*
|
|
* fill values in path descriptor
|
|
*/
|
|
#ifdef CONCENTRATOR
|
|
#define ALLPHYS NUMPHYS
|
|
#else
|
|
#define ALLPHYS ((smc->s.sas == SMT_SAS) ? 1 : 2)
|
|
#endif
|
|
|
|
static int smt_fill_path(struct s_smc *smc, struct smt_p_path *path)
|
|
{
|
|
SK_LOC_DECL(int,type) ;
|
|
SK_LOC_DECL(int,state) ;
|
|
SK_LOC_DECL(int,remote) ;
|
|
SK_LOC_DECL(int,mac) ;
|
|
int len ;
|
|
int p ;
|
|
int physp ;
|
|
struct smt_phy_rec *phy ;
|
|
struct smt_mac_rec *pd_mac ;
|
|
|
|
len = PARA_LEN +
|
|
sizeof(struct smt_mac_rec) * NUMMACS +
|
|
sizeof(struct smt_phy_rec) * ALLPHYS ;
|
|
path->para.p_type = SMT_P_PATH ;
|
|
path->para.p_len = len - PARA_LEN ;
|
|
|
|
/* PHYs */
|
|
for (p = 0,phy = path->pd_phy ; p < ALLPHYS ; p++, phy++) {
|
|
physp = p ;
|
|
#ifndef CONCENTRATOR
|
|
if (smc->s.sas == SMT_SAS)
|
|
physp = PS ;
|
|
#endif
|
|
pcm_status_state(smc,physp,&type,&state,&remote,&mac) ;
|
|
#ifdef LITTLE_ENDIAN
|
|
phy->phy_mib_index = smt_swap_short((u_short)p+INDEX_PORT) ;
|
|
#else
|
|
phy->phy_mib_index = p+INDEX_PORT ;
|
|
#endif
|
|
phy->phy_type = type ;
|
|
phy->phy_connect_state = state ;
|
|
phy->phy_remote_type = remote ;
|
|
phy->phy_remote_mac = mac ;
|
|
phy->phy_resource_idx = phy_con_resource_index(smc,p) ;
|
|
}
|
|
|
|
/* MAC */
|
|
pd_mac = (struct smt_mac_rec *) phy ;
|
|
pd_mac->mac_addr = smc->mib.m[MAC0].fddiMACSMTAddress ;
|
|
pd_mac->mac_resource_idx = mac_con_resource_index(smc,1) ;
|
|
return(len) ;
|
|
}
|
|
|
|
/*
|
|
* fill values in mac status
|
|
*/
|
|
static void smt_fill_mac_status(struct s_smc *smc, struct smt_p_mac_status *st)
|
|
{
|
|
SMTSETPARA(st,SMT_P_MAC_STATUS) ;
|
|
|
|
st->st_mib_index = INDEX_MAC ;
|
|
st->st_mac_index = mac_index(smc,1) ;
|
|
|
|
mac_update_counter(smc) ;
|
|
/*
|
|
* timer values are represented in SMT as 2's complement numbers
|
|
* units : internal : 2's complement BCLK
|
|
*/
|
|
st->st_t_req = smc->mib.m[MAC0].fddiMACT_Req ;
|
|
st->st_t_neg = smc->mib.m[MAC0].fddiMACT_Neg ;
|
|
st->st_t_max = smc->mib.m[MAC0].fddiMACT_Max ;
|
|
st->st_tvx_value = smc->mib.m[MAC0].fddiMACTvxValue ;
|
|
st->st_t_min = smc->mib.m[MAC0].fddiMACT_Min ;
|
|
|
|
st->st_sba = smc->mib.a[PATH0].fddiPATHSbaPayload ;
|
|
st->st_frame_ct = smc->mib.m[MAC0].fddiMACFrame_Ct ;
|
|
st->st_error_ct = smc->mib.m[MAC0].fddiMACError_Ct ;
|
|
st->st_lost_ct = smc->mib.m[MAC0].fddiMACLost_Ct ;
|
|
}
|
|
|
|
/*
|
|
* fill values in LEM status
|
|
*/
|
|
static void smt_fill_lem(struct s_smc *smc, struct smt_p_lem *lem, int phy)
|
|
{
|
|
struct fddi_mib_p *mib ;
|
|
|
|
mib = smc->y[phy].mib ;
|
|
|
|
SMTSETPARA(lem,SMT_P_LEM) ;
|
|
lem->lem_mib_index = phy+INDEX_PORT ;
|
|
lem->lem_phy_index = phy_index(smc,phy) ;
|
|
lem->lem_pad2 = 0 ;
|
|
lem->lem_cutoff = mib->fddiPORTLer_Cutoff ;
|
|
lem->lem_alarm = mib->fddiPORTLer_Alarm ;
|
|
/* long term bit error rate */
|
|
lem->lem_estimate = mib->fddiPORTLer_Estimate ;
|
|
/* # of rejected connections */
|
|
lem->lem_reject_ct = mib->fddiPORTLem_Reject_Ct ;
|
|
lem->lem_ct = mib->fddiPORTLem_Ct ; /* total number of errors */
|
|
}
|
|
|
|
/*
|
|
* fill version parameter
|
|
*/
|
|
static void smt_fill_version(struct s_smc *smc, struct smt_p_version *vers)
|
|
{
|
|
SK_UNUSED(smc) ;
|
|
SMTSETPARA(vers,SMT_P_VERSION) ;
|
|
vers->v_pad = 0 ;
|
|
vers->v_n = 1 ; /* one version is enough .. */
|
|
vers->v_index = 1 ;
|
|
vers->v_version[0] = SMT_VID_2 ;
|
|
vers->v_pad2 = 0 ;
|
|
}
|
|
|
|
#ifdef SMT6_10
|
|
/*
|
|
* fill frame status capabilities
|
|
*/
|
|
/*
|
|
* note: this para 200B is NOT in swap table, because it's also set in
|
|
* PMF add_para
|
|
*/
|
|
static void smt_fill_fsc(struct s_smc *smc, struct smt_p_fsc *fsc)
|
|
{
|
|
SK_UNUSED(smc) ;
|
|
SMTSETPARA(fsc,SMT_P_FSC) ;
|
|
fsc->fsc_pad0 = 0 ;
|
|
fsc->fsc_mac_index = INDEX_MAC ; /* this is MIB ; MIB is NOT
|
|
* mac_index ()i !
|
|
*/
|
|
fsc->fsc_pad1 = 0 ;
|
|
fsc->fsc_value = FSC_TYPE0 ; /* "normal" node */
|
|
#ifdef LITTLE_ENDIAN
|
|
fsc->fsc_mac_index = smt_swap_short(INDEX_MAC) ;
|
|
fsc->fsc_value = smt_swap_short(FSC_TYPE0) ;
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* fill mac counter field
|
|
*/
|
|
static void smt_fill_mac_counter(struct s_smc *smc, struct smt_p_mac_counter *mc)
|
|
{
|
|
SMTSETPARA(mc,SMT_P_MAC_COUNTER) ;
|
|
mc->mc_mib_index = INDEX_MAC ;
|
|
mc->mc_index = mac_index(smc,1) ;
|
|
mc->mc_receive_ct = smc->mib.m[MAC0].fddiMACCopied_Ct ;
|
|
mc->mc_transmit_ct = smc->mib.m[MAC0].fddiMACTransmit_Ct ;
|
|
}
|
|
|
|
/*
|
|
* fill mac frame not copied counter
|
|
*/
|
|
static void smt_fill_mac_fnc(struct s_smc *smc, struct smt_p_mac_fnc *fnc)
|
|
{
|
|
SMTSETPARA(fnc,SMT_P_MAC_FNC) ;
|
|
fnc->nc_mib_index = INDEX_MAC ;
|
|
fnc->nc_index = mac_index(smc,1) ;
|
|
fnc->nc_counter = smc->mib.m[MAC0].fddiMACNotCopied_Ct ;
|
|
}
|
|
|
|
|
|
/*
|
|
* fill manufacturer field
|
|
*/
|
|
static void smt_fill_manufacturer(struct s_smc *smc,
|
|
struct smp_p_manufacturer *man)
|
|
{
|
|
SMTSETPARA(man,SMT_P_MANUFACTURER) ;
|
|
memcpy((char *) man->mf_data,
|
|
(char *) smc->mib.fddiSMTManufacturerData,
|
|
sizeof(man->mf_data)) ;
|
|
}
|
|
|
|
/*
|
|
* fill user field
|
|
*/
|
|
static void smt_fill_user(struct s_smc *smc, struct smp_p_user *user)
|
|
{
|
|
SMTSETPARA(user,SMT_P_USER) ;
|
|
memcpy((char *) user->us_data,
|
|
(char *) smc->mib.fddiSMTUserData,
|
|
sizeof(user->us_data)) ;
|
|
}
|
|
|
|
/*
|
|
* fill set count
|
|
*/
|
|
static void smt_fill_setcount(struct s_smc *smc, struct smt_p_setcount *setcount)
|
|
{
|
|
SK_UNUSED(smc) ;
|
|
SMTSETPARA(setcount,SMT_P_SETCOUNT) ;
|
|
setcount->count = smc->mib.fddiSMTSetCount.count ;
|
|
memcpy((char *)setcount->timestamp,
|
|
(char *)smc->mib.fddiSMTSetCount.timestamp,8) ;
|
|
}
|
|
|
|
/*
|
|
* fill echo data
|
|
*/
|
|
static void smt_fill_echo(struct s_smc *smc, struct smt_p_echo *echo, u_long seed,
|
|
int len)
|
|
{
|
|
u_char *p ;
|
|
|
|
SK_UNUSED(smc) ;
|
|
SMTSETPARA(echo,SMT_P_ECHODATA) ;
|
|
echo->para.p_len = len ;
|
|
for (p = echo->ec_data ; len ; len--) {
|
|
*p++ = (u_char) seed ;
|
|
seed += 13 ;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* clear DNA and UNA
|
|
* called from CFM if configuration changes
|
|
*/
|
|
static void smt_clear_una_dna(struct s_smc *smc)
|
|
{
|
|
smc->mib.m[MAC0].fddiMACUpstreamNbr = SMT_Unknown ;
|
|
smc->mib.m[MAC0].fddiMACDownstreamNbr = SMT_Unknown ;
|
|
}
|
|
|
|
static void smt_clear_old_una_dna(struct s_smc *smc)
|
|
{
|
|
smc->mib.m[MAC0].fddiMACOldUpstreamNbr = SMT_Unknown ;
|
|
smc->mib.m[MAC0].fddiMACOldDownstreamNbr = SMT_Unknown ;
|
|
}
|
|
|
|
u_long smt_get_tid(struct s_smc *smc)
|
|
{
|
|
u_long tid ;
|
|
while ((tid = ++(smc->sm.smt_tid) ^ SMT_TID_MAGIC) == 0)
|
|
;
|
|
return(tid & 0x3fffffffL) ;
|
|
}
|
|
|
|
|
|
/*
|
|
* table of parameter lengths
|
|
*/
|
|
static const struct smt_pdef {
|
|
int ptype ;
|
|
int plen ;
|
|
const char *pswap ;
|
|
} smt_pdef[] = {
|
|
{ SMT_P_UNA, sizeof(struct smt_p_una) ,
|
|
SWAP_SMT_P_UNA } ,
|
|
{ SMT_P_SDE, sizeof(struct smt_p_sde) ,
|
|
SWAP_SMT_P_SDE } ,
|
|
{ SMT_P_STATE, sizeof(struct smt_p_state) ,
|
|
SWAP_SMT_P_STATE } ,
|
|
{ SMT_P_TIMESTAMP,sizeof(struct smt_p_timestamp) ,
|
|
SWAP_SMT_P_TIMESTAMP } ,
|
|
{ SMT_P_POLICY, sizeof(struct smt_p_policy) ,
|
|
SWAP_SMT_P_POLICY } ,
|
|
{ SMT_P_LATENCY, sizeof(struct smt_p_latency) ,
|
|
SWAP_SMT_P_LATENCY } ,
|
|
{ SMT_P_NEIGHBORS,sizeof(struct smt_p_neighbor) ,
|
|
SWAP_SMT_P_NEIGHBORS } ,
|
|
{ SMT_P_PATH, sizeof(struct smt_p_path) ,
|
|
SWAP_SMT_P_PATH } ,
|
|
{ SMT_P_MAC_STATUS,sizeof(struct smt_p_mac_status) ,
|
|
SWAP_SMT_P_MAC_STATUS } ,
|
|
{ SMT_P_LEM, sizeof(struct smt_p_lem) ,
|
|
SWAP_SMT_P_LEM } ,
|
|
{ SMT_P_MAC_COUNTER,sizeof(struct smt_p_mac_counter) ,
|
|
SWAP_SMT_P_MAC_COUNTER } ,
|
|
{ SMT_P_MAC_FNC,sizeof(struct smt_p_mac_fnc) ,
|
|
SWAP_SMT_P_MAC_FNC } ,
|
|
{ SMT_P_PRIORITY,sizeof(struct smt_p_priority) ,
|
|
SWAP_SMT_P_PRIORITY } ,
|
|
{ SMT_P_EB,sizeof(struct smt_p_eb) ,
|
|
SWAP_SMT_P_EB } ,
|
|
{ SMT_P_MANUFACTURER,sizeof(struct smp_p_manufacturer) ,
|
|
SWAP_SMT_P_MANUFACTURER } ,
|
|
{ SMT_P_REASON, sizeof(struct smt_p_reason) ,
|
|
SWAP_SMT_P_REASON } ,
|
|
{ SMT_P_REFUSED, sizeof(struct smt_p_refused) ,
|
|
SWAP_SMT_P_REFUSED } ,
|
|
{ SMT_P_VERSION, sizeof(struct smt_p_version) ,
|
|
SWAP_SMT_P_VERSION } ,
|
|
#ifdef ESS
|
|
{ SMT_P0015, sizeof(struct smt_p_0015) , SWAP_SMT_P0015 } ,
|
|
{ SMT_P0016, sizeof(struct smt_p_0016) , SWAP_SMT_P0016 } ,
|
|
{ SMT_P0017, sizeof(struct smt_p_0017) , SWAP_SMT_P0017 } ,
|
|
{ SMT_P0018, sizeof(struct smt_p_0018) , SWAP_SMT_P0018 } ,
|
|
{ SMT_P0019, sizeof(struct smt_p_0019) , SWAP_SMT_P0019 } ,
|
|
{ SMT_P001A, sizeof(struct smt_p_001a) , SWAP_SMT_P001A } ,
|
|
{ SMT_P001B, sizeof(struct smt_p_001b) , SWAP_SMT_P001B } ,
|
|
{ SMT_P001C, sizeof(struct smt_p_001c) , SWAP_SMT_P001C } ,
|
|
{ SMT_P001D, sizeof(struct smt_p_001d) , SWAP_SMT_P001D } ,
|
|
#endif
|
|
#if 0
|
|
{ SMT_P_FSC, sizeof(struct smt_p_fsc) ,
|
|
SWAP_SMT_P_FSC } ,
|
|
#endif
|
|
|
|
{ SMT_P_SETCOUNT,0, SWAP_SMT_P_SETCOUNT } ,
|
|
{ SMT_P1048, 0, SWAP_SMT_P1048 } ,
|
|
{ SMT_P208C, 0, SWAP_SMT_P208C } ,
|
|
{ SMT_P208D, 0, SWAP_SMT_P208D } ,
|
|
{ SMT_P208E, 0, SWAP_SMT_P208E } ,
|
|
{ SMT_P208F, 0, SWAP_SMT_P208F } ,
|
|
{ SMT_P2090, 0, SWAP_SMT_P2090 } ,
|
|
#ifdef ESS
|
|
{ SMT_P320B, sizeof(struct smt_p_320b) , SWAP_SMT_P320B } ,
|
|
{ SMT_P320F, sizeof(struct smt_p_320f) , SWAP_SMT_P320F } ,
|
|
{ SMT_P3210, sizeof(struct smt_p_3210) , SWAP_SMT_P3210 } ,
|
|
#endif
|
|
{ SMT_P4050, 0, SWAP_SMT_P4050 } ,
|
|
{ SMT_P4051, 0, SWAP_SMT_P4051 } ,
|
|
{ SMT_P4052, 0, SWAP_SMT_P4052 } ,
|
|
{ SMT_P4053, 0, SWAP_SMT_P4053 } ,
|
|
} ;
|
|
|
|
#define N_SMT_PLEN ARRAY_SIZE(smt_pdef)
|
|
|
|
int smt_check_para(struct s_smc *smc, struct smt_header *sm,
|
|
const u_short list[])
|
|
{
|
|
const u_short *p = list ;
|
|
while (*p) {
|
|
if (!sm_to_para(smc,sm,(int) *p)) {
|
|
DB_SMT("SMT: smt_check_para - missing para %x\n",*p,0);
|
|
return(-1) ;
|
|
}
|
|
p++ ;
|
|
}
|
|
return(0) ;
|
|
}
|
|
|
|
void *sm_to_para(struct s_smc *smc, struct smt_header *sm, int para)
|
|
{
|
|
char *p ;
|
|
int len ;
|
|
int plen ;
|
|
void *found = NULL;
|
|
|
|
SK_UNUSED(smc) ;
|
|
|
|
len = sm->smt_len ;
|
|
p = (char *)(sm+1) ; /* pointer to info */
|
|
while (len > 0 ) {
|
|
if (((struct smt_para *)p)->p_type == para)
|
|
found = (void *) p ;
|
|
plen = ((struct smt_para *)p)->p_len + PARA_LEN ;
|
|
p += plen ;
|
|
len -= plen ;
|
|
if (len < 0) {
|
|
DB_SMT("SMT : sm_to_para - length error %d\n",plen,0) ;
|
|
return NULL;
|
|
}
|
|
if ((plen & 3) && (para != SMT_P_ECHODATA)) {
|
|
DB_SMT("SMT : sm_to_para - odd length %d\n",plen,0) ;
|
|
return NULL;
|
|
}
|
|
if (found)
|
|
return(found) ;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
#if 0
|
|
/*
|
|
* send ANTC data test frame
|
|
*/
|
|
void fddi_send_antc(struct s_smc *smc, struct fddi_addr *dest)
|
|
{
|
|
SK_UNUSED(smc) ;
|
|
SK_UNUSED(dest) ;
|
|
#if 0
|
|
SMbuf *mb ;
|
|
struct smt_header *smt ;
|
|
int i ;
|
|
char *p ;
|
|
|
|
mb = smt_get_mbuf() ;
|
|
mb->sm_len = 3000+12 ;
|
|
p = smtod(mb, char *) + 12 ;
|
|
for (i = 0 ; i < 3000 ; i++)
|
|
*p++ = 1 << (i&7) ;
|
|
|
|
smt = smtod(mb, struct smt_header *) ;
|
|
smt->smt_dest = *dest ;
|
|
smt->smt_source = smc->mib.m[MAC0].fddiMACSMTAddress ;
|
|
smt_send_mbuf(smc,mb,FC_ASYNC_LLC) ;
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
#ifdef DEBUG
|
|
#define hextoasc(x) "0123456789abcdef"[x]
|
|
|
|
char *addr_to_string(struct fddi_addr *addr)
|
|
{
|
|
int i ;
|
|
static char string[6*3] = "****" ;
|
|
|
|
for (i = 0 ; i < 6 ; i++) {
|
|
string[i*3] = hextoasc((addr->a[i]>>4)&0xf) ;
|
|
string[i*3+1] = hextoasc((addr->a[i])&0xf) ;
|
|
string[i*3+2] = ':' ;
|
|
}
|
|
string[5*3+2] = 0 ;
|
|
return(string) ;
|
|
}
|
|
#endif
|
|
|
|
#ifdef AM29K
|
|
int smt_ifconfig(int argc, char *argv[])
|
|
{
|
|
if (argc >= 2 && !strcmp(argv[0],"opt_bypass") &&
|
|
!strcmp(argv[1],"yes")) {
|
|
smc->mib.fddiSMTBypassPresent = 1 ;
|
|
return(0) ;
|
|
}
|
|
return(amdfddi_config(0,argc,argv)) ;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* return static mac index
|
|
*/
|
|
static int mac_index(struct s_smc *smc, int mac)
|
|
{
|
|
SK_UNUSED(mac) ;
|
|
#ifdef CONCENTRATOR
|
|
SK_UNUSED(smc) ;
|
|
return(NUMPHYS+1) ;
|
|
#else
|
|
return((smc->s.sas == SMT_SAS) ? 2 : 3) ;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* return static phy index
|
|
*/
|
|
static int phy_index(struct s_smc *smc, int phy)
|
|
{
|
|
SK_UNUSED(smc) ;
|
|
return(phy+1);
|
|
}
|
|
|
|
/*
|
|
* return dynamic mac connection resource index
|
|
*/
|
|
static int mac_con_resource_index(struct s_smc *smc, int mac)
|
|
{
|
|
#ifdef CONCENTRATOR
|
|
SK_UNUSED(smc) ;
|
|
SK_UNUSED(mac) ;
|
|
return(entity_to_index(smc,cem_get_downstream(smc,ENTITY_MAC))) ;
|
|
#else
|
|
SK_UNUSED(mac) ;
|
|
switch (smc->mib.fddiSMTCF_State) {
|
|
case SC9_C_WRAP_A :
|
|
case SC5_THRU_B :
|
|
case SC11_C_WRAP_S :
|
|
return(1) ;
|
|
case SC10_C_WRAP_B :
|
|
case SC4_THRU_A :
|
|
return(2) ;
|
|
}
|
|
return(smc->s.sas == SMT_SAS ? 2 : 3) ;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* return dynamic phy connection resource index
|
|
*/
|
|
static int phy_con_resource_index(struct s_smc *smc, int phy)
|
|
{
|
|
#ifdef CONCENTRATOR
|
|
return(entity_to_index(smc,cem_get_downstream(smc,ENTITY_PHY(phy)))) ;
|
|
#else
|
|
switch (smc->mib.fddiSMTCF_State) {
|
|
case SC9_C_WRAP_A :
|
|
return(phy == PA ? 3 : 2) ;
|
|
case SC10_C_WRAP_B :
|
|
return(phy == PA ? 1 : 3) ;
|
|
case SC4_THRU_A :
|
|
return(phy == PA ? 3 : 1) ;
|
|
case SC5_THRU_B :
|
|
return(phy == PA ? 2 : 3) ;
|
|
case SC11_C_WRAP_S :
|
|
return(2) ;
|
|
}
|
|
return(phy) ;
|
|
#endif
|
|
}
|
|
|
|
#ifdef CONCENTRATOR
|
|
static int entity_to_index(struct s_smc *smc, int e)
|
|
{
|
|
if (e == ENTITY_MAC)
|
|
return(mac_index(smc,1)) ;
|
|
else
|
|
return(phy_index(smc,e - ENTITY_PHY(0))) ;
|
|
}
|
|
#endif
|
|
|
|
#ifdef LITTLE_ENDIAN
|
|
static int smt_swap_short(u_short s)
|
|
{
|
|
return(((s>>8)&0xff)|((s&0xff)<<8)) ;
|
|
}
|
|
|
|
void smt_swap_para(struct smt_header *sm, int len, int direction)
|
|
/* int direction; 0 encode 1 decode */
|
|
{
|
|
struct smt_para *pa ;
|
|
const struct smt_pdef *pd ;
|
|
char *p ;
|
|
int plen ;
|
|
int type ;
|
|
int i ;
|
|
|
|
/* printf("smt_swap_para sm %x len %d dir %d\n",
|
|
sm,len,direction) ;
|
|
*/
|
|
smt_string_swap((char *)sm,SWAP_SMTHEADER,len) ;
|
|
|
|
/* swap args */
|
|
len -= sizeof(struct smt_header) ;
|
|
|
|
p = (char *) (sm + 1) ;
|
|
while (len > 0) {
|
|
pa = (struct smt_para *) p ;
|
|
plen = pa->p_len ;
|
|
type = pa->p_type ;
|
|
pa->p_type = smt_swap_short(pa->p_type) ;
|
|
pa->p_len = smt_swap_short(pa->p_len) ;
|
|
if (direction) {
|
|
plen = pa->p_len ;
|
|
type = pa->p_type ;
|
|
}
|
|
/*
|
|
* note: paras can have 0 length !
|
|
*/
|
|
if (plen < 0)
|
|
break ;
|
|
plen += PARA_LEN ;
|
|
for (i = N_SMT_PLEN, pd = smt_pdef; i ; i--,pd++) {
|
|
if (pd->ptype == type)
|
|
break ;
|
|
}
|
|
if (i && pd->pswap) {
|
|
smt_string_swap(p+PARA_LEN,pd->pswap,len) ;
|
|
}
|
|
len -= plen ;
|
|
p += plen ;
|
|
}
|
|
}
|
|
|
|
static void smt_string_swap(char *data, const char *format, int len)
|
|
{
|
|
const char *open_paren = NULL ;
|
|
int x ;
|
|
|
|
while (len > 0 && *format) {
|
|
switch (*format) {
|
|
case '[' :
|
|
open_paren = format ;
|
|
break ;
|
|
case ']' :
|
|
format = open_paren ;
|
|
break ;
|
|
case '1' :
|
|
case '2' :
|
|
case '3' :
|
|
case '4' :
|
|
case '5' :
|
|
case '6' :
|
|
case '7' :
|
|
case '8' :
|
|
case '9' :
|
|
data += *format - '0' ;
|
|
len -= *format - '0' ;
|
|
break ;
|
|
case 'c':
|
|
data++ ;
|
|
len-- ;
|
|
break ;
|
|
case 's' :
|
|
x = data[0] ;
|
|
data[0] = data[1] ;
|
|
data[1] = x ;
|
|
data += 2 ;
|
|
len -= 2 ;
|
|
break ;
|
|
case 'l' :
|
|
x = data[0] ;
|
|
data[0] = data[3] ;
|
|
data[3] = x ;
|
|
x = data[1] ;
|
|
data[1] = data[2] ;
|
|
data[2] = x ;
|
|
data += 4 ;
|
|
len -= 4 ;
|
|
break ;
|
|
}
|
|
format++ ;
|
|
}
|
|
}
|
|
#else
|
|
void smt_swap_para(struct smt_header *sm, int len, int direction)
|
|
/* int direction; 0 encode 1 decode */
|
|
{
|
|
SK_UNUSED(sm) ;
|
|
SK_UNUSED(len) ;
|
|
SK_UNUSED(direction) ;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* PMF actions
|
|
*/
|
|
int smt_action(struct s_smc *smc, int class, int code, int index)
|
|
{
|
|
int event ;
|
|
int port ;
|
|
DB_SMT("SMT: action %d code %d\n",class,code) ;
|
|
switch(class) {
|
|
case SMT_STATION_ACTION :
|
|
switch(code) {
|
|
case SMT_STATION_ACTION_CONNECT :
|
|
smc->mib.fddiSMTRemoteDisconnectFlag = FALSE ;
|
|
queue_event(smc,EVENT_ECM,EC_CONNECT) ;
|
|
break ;
|
|
case SMT_STATION_ACTION_DISCONNECT :
|
|
queue_event(smc,EVENT_ECM,EC_DISCONNECT) ;
|
|
smc->mib.fddiSMTRemoteDisconnectFlag = TRUE ;
|
|
RS_SET(smc,RS_DISCONNECT) ;
|
|
AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
|
|
FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_DISCONNECT,
|
|
smt_get_event_word(smc));
|
|
break ;
|
|
case SMT_STATION_ACTION_PATHTEST :
|
|
AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
|
|
FDDI_SMT_EVENT, (u_long) FDDI_PATH_TEST,
|
|
smt_get_event_word(smc));
|
|
break ;
|
|
case SMT_STATION_ACTION_SELFTEST :
|
|
AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long)
|
|
FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_SELF_TEST,
|
|
smt_get_event_word(smc));
|
|
break ;
|
|
case SMT_STATION_ACTION_DISABLE_A :
|
|
if (smc->y[PA].pc_mode == PM_PEER) {
|
|
RS_SET(smc,RS_EVENT) ;
|
|
queue_event(smc,EVENT_PCM+PA,PC_DISABLE) ;
|
|
}
|
|
break ;
|
|
case SMT_STATION_ACTION_DISABLE_B :
|
|
if (smc->y[PB].pc_mode == PM_PEER) {
|
|
RS_SET(smc,RS_EVENT) ;
|
|
queue_event(smc,EVENT_PCM+PB,PC_DISABLE) ;
|
|
}
|
|
break ;
|
|
case SMT_STATION_ACTION_DISABLE_M :
|
|
for (port = 0 ; port < NUMPHYS ; port++) {
|
|
if (smc->mib.p[port].fddiPORTMy_Type != TM)
|
|
continue ;
|
|
RS_SET(smc,RS_EVENT) ;
|
|
queue_event(smc,EVENT_PCM+port,PC_DISABLE) ;
|
|
}
|
|
break ;
|
|
default :
|
|
return(1) ;
|
|
}
|
|
break ;
|
|
case SMT_PORT_ACTION :
|
|
switch(code) {
|
|
case SMT_PORT_ACTION_ENABLE :
|
|
event = PC_ENABLE ;
|
|
break ;
|
|
case SMT_PORT_ACTION_DISABLE :
|
|
event = PC_DISABLE ;
|
|
break ;
|
|
case SMT_PORT_ACTION_MAINT :
|
|
event = PC_MAINT ;
|
|
break ;
|
|
case SMT_PORT_ACTION_START :
|
|
event = PC_START ;
|
|
break ;
|
|
case SMT_PORT_ACTION_STOP :
|
|
event = PC_STOP ;
|
|
break ;
|
|
default :
|
|
return(1) ;
|
|
}
|
|
queue_event(smc,EVENT_PCM+index,event) ;
|
|
break ;
|
|
default :
|
|
return(1) ;
|
|
}
|
|
return(0) ;
|
|
}
|
|
|
|
/*
|
|
* canonical conversion of <len> bytes beginning form *data
|
|
*/
|
|
#ifdef USE_CAN_ADDR
|
|
static void hwm_conv_can(struct s_smc *smc, char *data, int len)
|
|
{
|
|
int i ;
|
|
|
|
SK_UNUSED(smc) ;
|
|
|
|
for (i = len; i ; i--, data++)
|
|
*data = bitrev8(*data);
|
|
}
|
|
#endif
|
|
|
|
#endif /* no SLIM_SMT */
|
|
|