1// SPDX-License-Identifier: GPL-2.0-or-later 2/****************************************************************************** 3 * 4 * (C)Copyright 1998,1999 SysKonnect, 5 * a business unit of Schneider & Koch & Co. Datensysteme GmbH. 6 * 7 * See the file "skfddi.c" for further information. 8 * 9 * The information in this file is provided "AS IS" without warranty. 10 * 11 ******************************************************************************/ 12 13#include "h/types.h" 14#include "h/fddi.h" 15#include "h/smc.h" 16#include "h/smt_p.h" 17#include <linux/bitrev.h> 18#include <linux/kernel.h> 19 20#define KERNEL 21#include "h/smtstate.h" 22 23/* 24 * FC in SMbuf 25 */ 26#define m_fc(mb) ((mb)->sm_data[0]) 27 28#define SMT_TID_MAGIC 0x1f0a7b3c 29 30static const char *const smt_type_name[] = { 31 "SMT_00??", "SMT_INFO", "SMT_02??", "SMT_03??", 32 "SMT_04??", "SMT_05??", "SMT_06??", "SMT_07??", 33 "SMT_08??", "SMT_09??", "SMT_0A??", "SMT_0B??", 34 "SMT_0C??", "SMT_0D??", "SMT_0E??", "SMT_NSA" 35} ; 36 37static const char *const smt_class_name[] = { 38 "UNKNOWN","NIF","SIF_CONFIG","SIF_OPER","ECF","RAF","RDF", 39 "SRF","PMF_GET","PMF_SET","ESF" 40} ; 41 42#define LAST_CLASS (SMT_PMF_SET) 43 44static const struct fddi_addr SMT_Unknown = { 45 { 0,0,0x1f,0,0,0 } 46} ; 47 48/* 49 * function prototypes 50 */ 51#ifdef LITTLE_ENDIAN 52static int smt_swap_short(u_short s); 53#endif 54static int mac_index(struct s_smc *smc, int mac); 55static int phy_index(struct s_smc *smc, int phy); 56static int mac_con_resource_index(struct s_smc *smc, int mac); 57static int phy_con_resource_index(struct s_smc *smc, int phy); 58static void smt_send_rdf(struct s_smc *smc, SMbuf *rej, int fc, int reason, 59 int local); 60static void smt_send_nif(struct s_smc *smc, const struct fddi_addr *dest, 61 int fc, u_long tid, int type, int local); 62static void smt_send_ecf(struct s_smc *smc, struct fddi_addr *dest, int fc, 63 u_long tid, int type, int len); 64static void smt_echo_test(struct s_smc *smc, int dna); 65static void smt_send_sif_config(struct s_smc *smc, struct fddi_addr *dest, 66 u_long tid, int local); 67static void smt_send_sif_operation(struct s_smc *smc, struct fddi_addr *dest, 68 u_long tid, int local); 69#ifdef LITTLE_ENDIAN 70static void smt_string_swap(char *data, const char *format, int len); 71#endif 72static void smt_add_frame_len(SMbuf *mb, int len); 73static void smt_fill_una(struct s_smc *smc, struct smt_p_una *una); 74static void smt_fill_sde(struct s_smc *smc, struct smt_p_sde *sde); 75static void smt_fill_state(struct s_smc *smc, struct smt_p_state *state); 76static void smt_fill_timestamp(struct s_smc *smc, struct smt_p_timestamp *ts); 77static void smt_fill_policy(struct s_smc *smc, struct smt_p_policy *policy); 78static void smt_fill_latency(struct s_smc *smc, struct smt_p_latency *latency); 79static void smt_fill_neighbor(struct s_smc *smc, struct smt_p_neighbor *neighbor); 80static int smt_fill_path(struct s_smc *smc, struct smt_p_path *path); 81static void smt_fill_mac_status(struct s_smc *smc, struct smt_p_mac_status *st); 82static void smt_fill_lem(struct s_smc *smc, struct smt_p_lem *lem, int phy); 83static void smt_fill_version(struct s_smc *smc, struct smt_p_version *vers); 84static void smt_fill_fsc(struct s_smc *smc, struct smt_p_fsc *fsc); 85static void smt_fill_mac_counter(struct s_smc *smc, struct smt_p_mac_counter *mc); 86static void smt_fill_mac_fnc(struct s_smc *smc, struct smt_p_mac_fnc *fnc); 87static void smt_fill_manufacturer(struct s_smc *smc, 88 struct smp_p_manufacturer *man); 89static void smt_fill_user(struct s_smc *smc, struct smp_p_user *user); 90static void smt_fill_setcount(struct s_smc *smc, struct smt_p_setcount *setcount); 91static void smt_fill_echo(struct s_smc *smc, struct smt_p_echo *echo, u_long seed, 92 int len); 93 94static void smt_clear_una_dna(struct s_smc *smc); 95static void smt_clear_old_una_dna(struct s_smc *smc); 96#ifdef CONCENTRATOR 97static int entity_to_index(void); 98#endif 99static void update_dac(struct s_smc *smc, int report); 100static int div_ratio(u_long upper, u_long lower); 101#ifdef USE_CAN_ADDR 102static void hwm_conv_can(struct s_smc *smc, char *data, int len); 103#else 104#define hwm_conv_can(smc,data,len) 105#endif 106 107 108static inline int is_my_addr(const struct s_smc *smc, 109 const struct fddi_addr *addr) 110{ 111 return(*(short *)(&addr->a[0]) == 112 *(short *)(&smc->mib.m[MAC0].fddiMACSMTAddress.a[0]) 113 && *(short *)(&addr->a[2]) == 114 *(short *)(&smc->mib.m[MAC0].fddiMACSMTAddress.a[2]) 115 && *(short *)(&addr->a[4]) == 116 *(short *)(&smc->mib.m[MAC0].fddiMACSMTAddress.a[4])) ; 117} 118 119static inline int is_broadcast(const struct fddi_addr *addr) 120{ 121 return *(u_short *)(&addr->a[0]) == 0xffff && 122 *(u_short *)(&addr->a[2]) == 0xffff && 123 *(u_short *)(&addr->a[4]) == 0xffff; 124} 125 126static inline int is_individual(const struct fddi_addr *addr) 127{ 128 return !(addr->a[0] & GROUP_ADDR); 129} 130 131static inline int is_equal(const struct fddi_addr *addr1, 132 const struct fddi_addr *addr2) 133{ 134 return *(u_short *)(&addr1->a[0]) == *(u_short *)(&addr2->a[0]) && 135 *(u_short *)(&addr1->a[2]) == *(u_short *)(&addr2->a[2]) && 136 *(u_short *)(&addr1->a[4]) == *(u_short *)(&addr2->a[4]); 137} 138 139/* 140 * list of mandatory paras in frames 141 */ 142static const u_short plist_nif[] = { SMT_P_UNA,SMT_P_SDE,SMT_P_STATE,0 } ; 143 144/* 145 * init SMT agent 146 */ 147void smt_agent_init(struct s_smc *smc) 148{ 149 int i ; 150 151 /* 152 * get MAC address 153 */ 154 smc->mib.m[MAC0].fddiMACSMTAddress = smc->hw.fddi_home_addr ; 155 156 /* 157 * get OUI address from driver (bia == built-in-address) 158 */ 159 smc->mib.fddiSMTStationId.sid_oem[0] = 0 ; 160 smc->mib.fddiSMTStationId.sid_oem[1] = 0 ; 161 driver_get_bia(smc,&smc->mib.fddiSMTStationId.sid_node) ; 162 for (i = 0 ; i < 6 ; i ++) { 163 smc->mib.fddiSMTStationId.sid_node.a[i] = 164 bitrev8(smc->mib.fddiSMTStationId.sid_node.a[i]); 165 } 166 smc->mib.fddiSMTManufacturerData[0] = 167 smc->mib.fddiSMTStationId.sid_node.a[0] ; 168 smc->mib.fddiSMTManufacturerData[1] = 169 smc->mib.fddiSMTStationId.sid_node.a[1] ; 170 smc->mib.fddiSMTManufacturerData[2] = 171 smc->mib.fddiSMTStationId.sid_node.a[2] ; 172 smc->sm.smt_tid = 0 ; 173 smc->mib.m[MAC0].fddiMACDupAddressTest = DA_NONE ; 174 smc->mib.m[MAC0].fddiMACUNDA_Flag = FALSE ; 175#ifndef SLIM_SMT 176 smt_clear_una_dna(smc) ; 177 smt_clear_old_una_dna(smc) ; 178#endif 179 for (i = 0 ; i < SMT_MAX_TEST ; i++) 180 smc->sm.pend[i] = 0 ; 181 smc->sm.please_reconnect = 0 ; 182 smc->sm.uniq_ticks = 0 ; 183} 184 185/* 186 * SMT task 187 * forever 188 * delay 30 seconds 189 * send NIF 190 * check tvu & tvd 191 * end 192 */ 193void smt_agent_task(struct s_smc *smc) 194{ 195 smt_timer_start(smc,&smc->sm.smt_timer, (u_long)1000000L, 196 EV_TOKEN(EVENT_SMT,SM_TIMER)) ; 197 DB_SMT("SMT agent task"); 198} 199 200#ifndef SMT_REAL_TOKEN_CT 201void smt_emulate_token_ct(struct s_smc *smc, int mac_index) 202{ 203 u_long count; 204 u_long time; 205 206 207 time = smt_get_time(); 208 count = ((time - smc->sm.last_tok_time[mac_index]) * 209 100)/TICKS_PER_SECOND; 210 211 /* 212 * Only when ring is up we will have a token count. The 213 * flag is unfortunately a single instance value. This 214 * doesn't matter now, because we currently have only 215 * one MAC instance. 216 */ 217 if (smc->hw.mac_ring_is_up){ 218 smc->mib.m[mac_index].fddiMACToken_Ct += count; 219 } 220 221 /* Remember current time */ 222 smc->sm.last_tok_time[mac_index] = time; 223 224} 225#endif 226 227/*ARGSUSED1*/ 228void smt_event(struct s_smc *smc, int event) 229{ 230 u_long time ; 231#ifndef SMT_REAL_TOKEN_CT 232 int i ; 233#endif 234 235 236 if (smc->sm.please_reconnect) { 237 smc->sm.please_reconnect -- ; 238 if (smc->sm.please_reconnect == 0) { 239 /* Counted down */ 240 queue_event(smc,EVENT_ECM,EC_CONNECT) ; 241 } 242 } 243 244 if (event == SM_FAST) 245 return ; 246 247 /* 248 * timer for periodic cleanup in driver 249 * reset and start the watchdog (FM2) 250 * ESS timer 251 * SBA timer 252 */ 253 smt_timer_poll(smc) ; 254 smt_start_watchdog(smc) ; 255#ifndef SLIM_SMT 256#ifndef BOOT 257#ifdef ESS 258 ess_timer_poll(smc) ; 259#endif 260#endif 261#ifdef SBA 262 sba_timer_poll(smc) ; 263#endif 264 265 smt_srf_event(smc,0,0,0) ; 266 267#endif /* no SLIM_SMT */ 268 269 time = smt_get_time() ; 270 271 if (time - smc->sm.smt_last_lem >= TICKS_PER_SECOND*8) { 272 /* 273 * Use 8 sec. for the time intervall, it simplifies the 274 * LER estimation. 275 */ 276 struct fddi_mib_m *mib ; 277 u_long upper ; 278 u_long lower ; 279 int cond ; 280 int port; 281 struct s_phy *phy ; 282 /* 283 * calculate LEM bit error rate 284 */ 285 sm_lem_evaluate(smc) ; 286 smc->sm.smt_last_lem = time ; 287 288 /* 289 * check conditions 290 */ 291#ifndef SLIM_SMT 292 mac_update_counter(smc) ; 293 mib = smc->mib.m ; 294 upper = 295 (mib->fddiMACLost_Ct - mib->fddiMACOld_Lost_Ct) + 296 (mib->fddiMACError_Ct - mib->fddiMACOld_Error_Ct) ; 297 lower = 298 (mib->fddiMACFrame_Ct - mib->fddiMACOld_Frame_Ct) + 299 (mib->fddiMACLost_Ct - mib->fddiMACOld_Lost_Ct) ; 300 mib->fddiMACFrameErrorRatio = div_ratio(upper,lower) ; 301 302 cond = 303 ((!mib->fddiMACFrameErrorThreshold && 304 mib->fddiMACError_Ct != mib->fddiMACOld_Error_Ct) || 305 (mib->fddiMACFrameErrorRatio > 306 mib->fddiMACFrameErrorThreshold)) ; 307 308 if (cond != mib->fddiMACFrameErrorFlag) 309 smt_srf_event(smc,SMT_COND_MAC_FRAME_ERROR, 310 INDEX_MAC,cond) ; 311 312 upper = 313 (mib->fddiMACNotCopied_Ct - mib->fddiMACOld_NotCopied_Ct) ; 314 lower = 315 upper + 316 (mib->fddiMACCopied_Ct - mib->fddiMACOld_Copied_Ct) ; 317 mib->fddiMACNotCopiedRatio = div_ratio(upper,lower) ; 318 319 cond = 320 ((!mib->fddiMACNotCopiedThreshold && 321 mib->fddiMACNotCopied_Ct != 322 mib->fddiMACOld_NotCopied_Ct)|| 323 (mib->fddiMACNotCopiedRatio > 324 mib->fddiMACNotCopiedThreshold)) ; 325 326 if (cond != mib->fddiMACNotCopiedFlag) 327 smt_srf_event(smc,SMT_COND_MAC_NOT_COPIED, 328 INDEX_MAC,cond) ; 329 330 /* 331 * set old values 332 */ 333 mib->fddiMACOld_Frame_Ct = mib->fddiMACFrame_Ct ; 334 mib->fddiMACOld_Copied_Ct = mib->fddiMACCopied_Ct ; 335 mib->fddiMACOld_Error_Ct = mib->fddiMACError_Ct ; 336 mib->fddiMACOld_Lost_Ct = mib->fddiMACLost_Ct ; 337 mib->fddiMACOld_NotCopied_Ct = mib->fddiMACNotCopied_Ct ; 338 339 /* 340 * Check port EBError Condition 341 */ 342 for (port = 0; port < NUMPHYS; port ++) { 343 phy = &smc->y[port] ; 344 345 if (!phy->mib->fddiPORTHardwarePresent) { 346 continue; 347 } 348 349 cond = (phy->mib->fddiPORTEBError_Ct - 350 phy->mib->fddiPORTOldEBError_Ct > 5) ; 351 352 /* If ratio is more than 5 in 8 seconds 353 * Set the condition. 354 */ 355 smt_srf_event(smc,SMT_COND_PORT_EB_ERROR, 356 (int) (INDEX_PORT+ phy->np) ,cond) ; 357 358 /* 359 * set old values 360 */ 361 phy->mib->fddiPORTOldEBError_Ct = 362 phy->mib->fddiPORTEBError_Ct ; 363 } 364 365#endif /* no SLIM_SMT */ 366 } 367 368#ifndef SLIM_SMT 369 370 if (time - smc->sm.smt_last_notify >= (u_long) 371 (smc->mib.fddiSMTTT_Notify * TICKS_PER_SECOND) ) { 372 /* 373 * we can either send an announcement or a request 374 * a request will trigger a reply so that we can update 375 * our dna 376 * note: same tid must be used until reply is received 377 */ 378 if (!smc->sm.pend[SMT_TID_NIF]) 379 smc->sm.pend[SMT_TID_NIF] = smt_get_tid(smc) ; 380 smt_send_nif(smc,&fddi_broadcast, FC_SMT_NSA, 381 smc->sm.pend[SMT_TID_NIF], SMT_REQUEST,0) ; 382 smc->sm.smt_last_notify = time ; 383 } 384 385 /* 386 * check timer 387 */ 388 if (smc->sm.smt_tvu && 389 time - smc->sm.smt_tvu > 228*TICKS_PER_SECOND) { 390 DB_SMT("SMT : UNA expired"); 391 smc->sm.smt_tvu = 0 ; 392 393 if (!is_equal(&smc->mib.m[MAC0].fddiMACUpstreamNbr, 394 &SMT_Unknown)){ 395 /* Do not update unknown address */ 396 smc->mib.m[MAC0].fddiMACOldUpstreamNbr= 397 smc->mib.m[MAC0].fddiMACUpstreamNbr ; 398 } 399 smc->mib.m[MAC0].fddiMACUpstreamNbr = SMT_Unknown ; 400 smc->mib.m[MAC0].fddiMACUNDA_Flag = FALSE ; 401 /* 402 * Make sure the fddiMACUNDA_Flag = FALSE is 403 * included in the SRF so we don't generate 404 * a separate SRF for the deassertion of this 405 * condition 406 */ 407 update_dac(smc,0) ; 408 smt_srf_event(smc, SMT_EVENT_MAC_NEIGHBOR_CHANGE, 409 INDEX_MAC,0) ; 410 } 411 if (smc->sm.smt_tvd && 412 time - smc->sm.smt_tvd > 228*TICKS_PER_SECOND) { 413 DB_SMT("SMT : DNA expired"); 414 smc->sm.smt_tvd = 0 ; 415 if (!is_equal(&smc->mib.m[MAC0].fddiMACDownstreamNbr, 416 &SMT_Unknown)){ 417 /* Do not update unknown address */ 418 smc->mib.m[MAC0].fddiMACOldDownstreamNbr= 419 smc->mib.m[MAC0].fddiMACDownstreamNbr ; 420 } 421 smc->mib.m[MAC0].fddiMACDownstreamNbr = SMT_Unknown ; 422 smt_srf_event(smc, SMT_EVENT_MAC_NEIGHBOR_CHANGE, 423 INDEX_MAC,0) ; 424 } 425 426#endif /* no SLIM_SMT */ 427 428#ifndef SMT_REAL_TOKEN_CT 429 /* 430 * Token counter emulation section. If hardware supports the token 431 * count, the token counter will be updated in mac_update_counter. 432 */ 433 for (i = MAC0; i < NUMMACS; i++ ){ 434 if (time - smc->sm.last_tok_time[i] > 2*TICKS_PER_SECOND ){ 435 smt_emulate_token_ct( smc, i ); 436 } 437 } 438#endif 439 440 smt_timer_start(smc,&smc->sm.smt_timer, (u_long)1000000L, 441 EV_TOKEN(EVENT_SMT,SM_TIMER)) ; 442} 443 444static int div_ratio(u_long upper, u_long lower) 445{ 446 if ((upper<<16L) < upper) 447 upper = 0xffff0000L ; 448 else 449 upper <<= 16L ; 450 if (!lower) 451 return 0; 452 return (int)(upper/lower) ; 453} 454 455#ifndef SLIM_SMT 456 457/* 458 * receive packet handler 459 */ 460void smt_received_pack(struct s_smc *smc, SMbuf *mb, int fs) 461/* int fs; frame status */ 462{ 463 struct smt_header *sm ; 464 int local ; 465 466 int illegal = 0 ; 467 468 switch (m_fc(mb)) { 469 case FC_SMT_INFO : 470 case FC_SMT_LAN_LOC : 471 case FC_SMT_LOC : 472 case FC_SMT_NSA : 473 break ; 474 default : 475 smt_free_mbuf(smc,mb) ; 476 return ; 477 } 478 479 smc->mib.m[MAC0].fddiMACSMTCopied_Ct++ ; 480 sm = smtod(mb,struct smt_header *) ; 481 local = ((fs & L_INDICATOR) != 0) ; 482 hwm_conv_can(smc,(char *)sm,12) ; 483 484 /* check destination address */ 485 if (is_individual(&sm->smt_dest) && !is_my_addr(smc,&sm->smt_dest)) { 486 smt_free_mbuf(smc,mb) ; 487 return ; 488 } 489#if 0 /* for DUP recognition, do NOT filter them */ 490 /* ignore loop back packets */ 491 if (is_my_addr(smc,&sm->smt_source) && !local) { 492 smt_free_mbuf(smc,mb) ; 493 return ; 494 } 495#endif 496 497 smt_swap_para(sm,(int) mb->sm_len,1) ; 498 DB_SMT("SMT : received packet [%s] at 0x%p", 499 smt_type_name[m_fc(mb) & 0xf], sm); 500 DB_SMT("SMT : version %d, class %s", 501 sm->smt_version, 502 smt_class_name[sm->smt_class > LAST_CLASS ? 0 : sm->smt_class]); 503 504#ifdef SBA 505 /* 506 * check if NSA frame 507 */ 508 if (m_fc(mb) == FC_SMT_NSA && sm->smt_class == SMT_NIF && 509 (sm->smt_type == SMT_ANNOUNCE || sm->smt_type == SMT_REQUEST)) { 510 smc->sba.sm = sm ; 511 sba(smc,NIF) ; 512 } 513#endif 514 515 /* 516 * ignore any packet with NSA and A-indicator set 517 */ 518 if ( (fs & A_INDICATOR) && m_fc(mb) == FC_SMT_NSA) { 519 DB_SMT("SMT : ignoring NSA with A-indicator set from %pM", 520 &sm->smt_source); 521 smt_free_mbuf(smc,mb) ; 522 return ; 523 } 524 525 /* 526 * ignore frames with illegal length 527 */ 528 if (((sm->smt_class == SMT_ECF) && (sm->smt_len > SMT_MAX_ECHO_LEN)) || 529 ((sm->smt_class != SMT_ECF) && (sm->smt_len > SMT_MAX_INFO_LEN))) { 530 smt_free_mbuf(smc,mb) ; 531 return ; 532 } 533 534 /* 535 * check SMT version 536 */ 537 switch (sm->smt_class) { 538 case SMT_NIF : 539 case SMT_SIF_CONFIG : 540 case SMT_SIF_OPER : 541 case SMT_ECF : 542 if (sm->smt_version != SMT_VID) 543 illegal = 1; 544 break ; 545 default : 546 if (sm->smt_version != SMT_VID_2) 547 illegal = 1; 548 break ; 549 } 550 if (illegal) { 551 DB_SMT("SMT : version = %d, dest = %pM", 552 sm->smt_version, &sm->smt_source); 553 smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_VERSION,local) ; 554 smt_free_mbuf(smc,mb) ; 555 return ; 556 } 557 if ((sm->smt_len > mb->sm_len - sizeof(struct smt_header)) || 558 ((sm->smt_len & 3) && (sm->smt_class != SMT_ECF))) { 559 DB_SMT("SMT: info length error, len = %d", sm->smt_len); 560 smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_LENGTH,local) ; 561 smt_free_mbuf(smc,mb) ; 562 return ; 563 } 564 switch (sm->smt_class) { 565 case SMT_NIF : 566 if (smt_check_para(smc,sm,plist_nif)) { 567 DB_SMT("SMT: NIF with para problem, ignoring"); 568 break ; 569 } 570 switch (sm->smt_type) { 571 case SMT_ANNOUNCE : 572 case SMT_REQUEST : 573 if (!(fs & C_INDICATOR) && m_fc(mb) == FC_SMT_NSA 574 && is_broadcast(&sm->smt_dest)) { 575 struct smt_p_state *st ; 576 577 /* set my UNA */ 578 if (!is_equal( 579 &smc->mib.m[MAC0].fddiMACUpstreamNbr, 580 &sm->smt_source)) { 581 DB_SMT("SMT : updated my UNA = %pM", 582 &sm->smt_source); 583 if (!is_equal(&smc->mib.m[MAC0]. 584 fddiMACUpstreamNbr,&SMT_Unknown)){ 585 /* Do not update unknown address */ 586 smc->mib.m[MAC0].fddiMACOldUpstreamNbr= 587 smc->mib.m[MAC0].fddiMACUpstreamNbr ; 588 } 589 590 smc->mib.m[MAC0].fddiMACUpstreamNbr = 591 sm->smt_source ; 592 smt_srf_event(smc, 593 SMT_EVENT_MAC_NEIGHBOR_CHANGE, 594 INDEX_MAC,0) ; 595 smt_echo_test(smc,0) ; 596 } 597 smc->sm.smt_tvu = smt_get_time() ; 598 st = (struct smt_p_state *) 599 sm_to_para(smc,sm,SMT_P_STATE) ; 600 if (st) { 601 smc->mib.m[MAC0].fddiMACUNDA_Flag = 602 (st->st_dupl_addr & SMT_ST_MY_DUPA) ? 603 TRUE : FALSE ; 604 update_dac(smc,1) ; 605 } 606 } 607 if ((sm->smt_type == SMT_REQUEST) && 608 is_individual(&sm->smt_source) && 609 ((!(fs & A_INDICATOR) && m_fc(mb) == FC_SMT_NSA) || 610 (m_fc(mb) != FC_SMT_NSA))) { 611 DB_SMT("SMT : replying to NIF request %pM", 612 &sm->smt_source); 613 smt_send_nif(smc,&sm->smt_source, 614 FC_SMT_INFO, 615 sm->smt_tid, 616 SMT_REPLY,local) ; 617 } 618 break ; 619 case SMT_REPLY : 620 DB_SMT("SMT : received NIF response from %pM", 621 &sm->smt_source); 622 if (fs & A_INDICATOR) { 623 smc->sm.pend[SMT_TID_NIF] = 0 ; 624 DB_SMT("SMT : duplicate address"); 625 smc->mib.m[MAC0].fddiMACDupAddressTest = 626 DA_FAILED ; 627 smc->r.dup_addr_test = DA_FAILED ; 628 queue_event(smc,EVENT_RMT,RM_DUP_ADDR) ; 629 smc->mib.m[MAC0].fddiMACDA_Flag = TRUE ; 630 update_dac(smc,1) ; 631 break ; 632 } 633 if (sm->smt_tid == smc->sm.pend[SMT_TID_NIF]) { 634 smc->sm.pend[SMT_TID_NIF] = 0 ; 635 /* set my DNA */ 636 if (!is_equal( 637 &smc->mib.m[MAC0].fddiMACDownstreamNbr, 638 &sm->smt_source)) { 639 DB_SMT("SMT : updated my DNA"); 640 if (!is_equal(&smc->mib.m[MAC0]. 641 fddiMACDownstreamNbr, &SMT_Unknown)){ 642 /* Do not update unknown address */ 643 smc->mib.m[MAC0].fddiMACOldDownstreamNbr = 644 smc->mib.m[MAC0].fddiMACDownstreamNbr ; 645 } 646 647 smc->mib.m[MAC0].fddiMACDownstreamNbr = 648 sm->smt_source ; 649 smt_srf_event(smc, 650 SMT_EVENT_MAC_NEIGHBOR_CHANGE, 651 INDEX_MAC,0) ; 652 smt_echo_test(smc,1) ; 653 } 654 smc->mib.m[MAC0].fddiMACDA_Flag = FALSE ; 655 update_dac(smc,1) ; 656 smc->sm.smt_tvd = smt_get_time() ; 657 smc->mib.m[MAC0].fddiMACDupAddressTest = 658 DA_PASSED ; 659 if (smc->r.dup_addr_test != DA_PASSED) { 660 smc->r.dup_addr_test = DA_PASSED ; 661 queue_event(smc,EVENT_RMT,RM_DUP_ADDR) ; 662 } 663 } 664 else if (sm->smt_tid == 665 smc->sm.pend[SMT_TID_NIF_TEST]) { 666 DB_SMT("SMT : NIF test TID ok"); 667 } 668 else { 669 DB_SMT("SMT : expected TID %lx, got %x", 670 smc->sm.pend[SMT_TID_NIF], sm->smt_tid); 671 } 672 break ; 673 default : 674 illegal = 2 ; 675 break ; 676 } 677 break ; 678 case SMT_SIF_CONFIG : /* station information */ 679 if (sm->smt_type != SMT_REQUEST) 680 break ; 681 DB_SMT("SMT : replying to SIF Config request from %pM", 682 &sm->smt_source); 683 smt_send_sif_config(smc,&sm->smt_source,sm->smt_tid,local) ; 684 break ; 685 case SMT_SIF_OPER : /* station information */ 686 if (sm->smt_type != SMT_REQUEST) 687 break ; 688 DB_SMT("SMT : replying to SIF Operation request from %pM", 689 &sm->smt_source); 690 smt_send_sif_operation(smc,&sm->smt_source,sm->smt_tid,local) ; 691 break ; 692 case SMT_ECF : /* echo frame */ 693 switch (sm->smt_type) { 694 case SMT_REPLY : 695 smc->mib.priv.fddiPRIVECF_Reply_Rx++ ; 696 DB_SMT("SMT: received ECF reply from %pM", 697 &sm->smt_source); 698 if (sm_to_para(smc,sm,SMT_P_ECHODATA) == NULL) { 699 DB_SMT("SMT: ECHODATA missing"); 700 break ; 701 } 702 if (sm->smt_tid == smc->sm.pend[SMT_TID_ECF]) { 703 DB_SMT("SMT : ECF test TID ok"); 704 } 705 else if (sm->smt_tid == smc->sm.pend[SMT_TID_ECF_UNA]) { 706 DB_SMT("SMT : ECF test UNA ok"); 707 } 708 else if (sm->smt_tid == smc->sm.pend[SMT_TID_ECF_DNA]) { 709 DB_SMT("SMT : ECF test DNA ok"); 710 } 711 else { 712 DB_SMT("SMT : expected TID %lx, got %x", 713 smc->sm.pend[SMT_TID_ECF], 714 sm->smt_tid); 715 } 716 break ; 717 case SMT_REQUEST : 718 smc->mib.priv.fddiPRIVECF_Req_Rx++ ; 719 { 720 if (sm->smt_len && !sm_to_para(smc,sm,SMT_P_ECHODATA)) { 721 DB_SMT("SMT: ECF with para problem,sending RDF"); 722 smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_LENGTH, 723 local) ; 724 break ; 725 } 726 DB_SMT("SMT - sending ECF reply to %pM", 727 &sm->smt_source); 728 729 /* set destination addr. & reply */ 730 sm->smt_dest = sm->smt_source ; 731 sm->smt_type = SMT_REPLY ; 732 dump_smt(smc,sm,"ECF REPLY") ; 733 smc->mib.priv.fddiPRIVECF_Reply_Tx++ ; 734 smt_send_frame(smc,mb,FC_SMT_INFO,local) ; 735 return ; /* DON'T free mbuf */ 736 } 737 default : 738 illegal = 1 ; 739 break ; 740 } 741 break ; 742#ifndef BOOT 743 case SMT_RAF : /* resource allocation */ 744#ifdef ESS 745 DB_ESSN(2, "ESS: RAF frame received"); 746 fs = ess_raf_received_pack(smc,mb,sm,fs) ; 747#endif 748 749#ifdef SBA 750 DB_SBAN(2, "SBA: RAF frame received") ; 751 sba_raf_received_pack(smc,sm,fs) ; 752#endif 753 break ; 754 case SMT_RDF : /* request denied */ 755 smc->mib.priv.fddiPRIVRDF_Rx++ ; 756 break ; 757 case SMT_ESF : /* extended service - not supported */ 758 if (sm->smt_type == SMT_REQUEST) { 759 DB_SMT("SMT - received ESF, sending RDF"); 760 smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_CLASS,local) ; 761 } 762 break ; 763 case SMT_PMF_GET : 764 case SMT_PMF_SET : 765 if (sm->smt_type != SMT_REQUEST) 766 break ; 767 /* update statistics */ 768 if (sm->smt_class == SMT_PMF_GET) 769 smc->mib.priv.fddiPRIVPMF_Get_Rx++ ; 770 else 771 smc->mib.priv.fddiPRIVPMF_Set_Rx++ ; 772 /* 773 * ignore PMF SET with I/G set 774 */ 775 if ((sm->smt_class == SMT_PMF_SET) && 776 !is_individual(&sm->smt_dest)) { 777 DB_SMT("SMT: ignoring PMF-SET with I/G set"); 778 break ; 779 } 780 smt_pmf_received_pack(smc,mb, local) ; 781 break ; 782 case SMT_SRF : 783 dump_smt(smc,sm,"SRF received") ; 784 break ; 785 default : 786 if (sm->smt_type != SMT_REQUEST) 787 break ; 788 /* 789 * For frames with unknown class: 790 * we need to send a RDF frame according to 8.1.3.1.1, 791 * only if it is a REQUEST. 792 */ 793 DB_SMT("SMT : class = %d, send RDF to %pM", 794 sm->smt_class, &sm->smt_source); 795 796 smt_send_rdf(smc,mb,m_fc(mb),SMT_RDF_CLASS,local) ; 797 break ; 798#endif 799 } 800 if (illegal) { 801 DB_SMT("SMT: discarding invalid frame, reason = %d", illegal); 802 } 803 smt_free_mbuf(smc,mb) ; 804} 805 806static void update_dac(struct s_smc *smc, int report) 807{ 808 int cond ; 809 810 cond = ( smc->mib.m[MAC0].fddiMACUNDA_Flag | 811 smc->mib.m[MAC0].fddiMACDA_Flag) != 0 ; 812 if (report && (cond != smc->mib.m[MAC0].fddiMACDuplicateAddressCond)) 813 smt_srf_event(smc, SMT_COND_MAC_DUP_ADDR,INDEX_MAC,cond) ; 814 else 815 smc->mib.m[MAC0].fddiMACDuplicateAddressCond = cond ; 816} 817 818/* 819 * send SMT frame 820 * set source address 821 * set station ID 822 * send frame 823 */ 824void smt_send_frame(struct s_smc *smc, SMbuf *mb, int fc, int local) 825/* SMbuf *mb; buffer to send */ 826/* int fc; FC value */ 827{ 828 struct smt_header *sm ; 829 830 if (!smc->r.sm_ma_avail && !local) { 831 smt_free_mbuf(smc,mb) ; 832 return ; 833 } 834 sm = smtod(mb,struct smt_header *) ; 835 sm->smt_source = smc->mib.m[MAC0].fddiMACSMTAddress ; 836 sm->smt_sid = smc->mib.fddiSMTStationId ; 837 838 smt_swap_para(sm,(int) mb->sm_len,0) ; /* swap para & header */ 839 hwm_conv_can(smc,(char *)sm,12) ; /* convert SA and DA */ 840 smc->mib.m[MAC0].fddiMACSMTTransmit_Ct++ ; 841 smt_send_mbuf(smc,mb,local ? FC_SMT_LOC : fc) ; 842} 843 844/* 845 * generate and send RDF 846 */ 847static void smt_send_rdf(struct s_smc *smc, SMbuf *rej, int fc, int reason, 848 int local) 849/* SMbuf *rej; mbuf of offending frame */ 850/* int fc; FC of denied frame */ 851/* int reason; reason code */ 852{ 853 SMbuf *mb ; 854 struct smt_header *sm ; /* header of offending frame */ 855 struct smt_rdf *rdf ; 856 int len ; 857 int frame_len ; 858 859 sm = smtod(rej,struct smt_header *) ; 860 if (sm->smt_type != SMT_REQUEST) 861 return ; 862 863 DB_SMT("SMT: sending RDF to %pM,reason = 0x%x", 864 &sm->smt_source, reason); 865 866 867 /* 868 * note: get framelength from MAC length, NOT from SMT header 869 * smt header length is included in sm_len 870 */ 871 frame_len = rej->sm_len ; 872 873 if (!(mb=smt_build_frame(smc,SMT_RDF,SMT_REPLY,sizeof(struct smt_rdf)))) 874 return ; 875 rdf = smtod(mb,struct smt_rdf *) ; 876 rdf->smt.smt_tid = sm->smt_tid ; /* use TID from sm */ 877 rdf->smt.smt_dest = sm->smt_source ; /* set dest = source */ 878 879 /* set P12 */ 880 rdf->reason.para.p_type = SMT_P_REASON ; 881 rdf->reason.para.p_len = sizeof(struct smt_p_reason) - PARA_LEN ; 882 rdf->reason.rdf_reason = reason ; 883 884 /* set P14 */ 885 rdf->version.para.p_type = SMT_P_VERSION ; 886 rdf->version.para.p_len = sizeof(struct smt_p_version) - PARA_LEN ; 887 rdf->version.v_pad = 0 ; 888 rdf->version.v_n = 1 ; 889 rdf->version.v_index = 1 ; 890 rdf->version.v_version[0] = SMT_VID_2 ; 891 rdf->version.v_pad2 = 0 ; 892 893 /* set P13 */ 894 if ((unsigned int) frame_len <= SMT_MAX_INFO_LEN - sizeof(*rdf) + 895 2*sizeof(struct smt_header)) 896 len = frame_len ; 897 else 898 len = SMT_MAX_INFO_LEN - sizeof(*rdf) + 899 2*sizeof(struct smt_header) ; 900 /* make length multiple of 4 */ 901 len &= ~3 ; 902 rdf->refused.para.p_type = SMT_P_REFUSED ; 903 /* length of para is smt_frame + ref_fc */ 904 rdf->refused.para.p_len = len + 4 ; 905 rdf->refused.ref_fc = fc ; 906 907 /* swap it back */ 908 smt_swap_para(sm,frame_len,0) ; 909 910 memcpy((char *) &rdf->refused.ref_header,(char *) sm,len) ; 911 912 len -= sizeof(struct smt_header) ; 913 mb->sm_len += len ; 914 rdf->smt.smt_len += len ; 915 916 dump_smt(smc,(struct smt_header *)rdf,"RDF") ; 917 smc->mib.priv.fddiPRIVRDF_Tx++ ; 918 smt_send_frame(smc,mb,FC_SMT_INFO,local) ; 919} 920 921/* 922 * generate and send NIF 923 */ 924static void smt_send_nif(struct s_smc *smc, const struct fddi_addr *dest, 925 int fc, u_long tid, int type, int local) 926/* struct fddi_addr *dest; dest address */ 927/* int fc; frame control */ 928/* u_long tid; transaction id */ 929/* int type; frame type */ 930{ 931 struct smt_nif *nif ; 932 SMbuf *mb ; 933 934 if (!(mb = smt_build_frame(smc,SMT_NIF,type,sizeof(struct smt_nif)))) 935 return ; 936 nif = smtod(mb, struct smt_nif *) ; 937 smt_fill_una(smc,&nif->una) ; /* set UNA */ 938 smt_fill_sde(smc,&nif->sde) ; /* set station descriptor */ 939 smt_fill_state(smc,&nif->state) ; /* set state information */ 940#ifdef SMT6_10 941 smt_fill_fsc(smc,&nif->fsc) ; /* set frame status cap. */ 942#endif 943 nif->smt.smt_dest = *dest ; /* destination address */ 944 nif->smt.smt_tid = tid ; /* transaction ID */ 945 dump_smt(smc,(struct smt_header *)nif,"NIF") ; 946 smt_send_frame(smc,mb,fc,local) ; 947} 948 949#ifdef DEBUG 950/* 951 * send NIF request (test purpose) 952 */ 953static void smt_send_nif_request(struct s_smc *smc, struct fddi_addr *dest) 954{ 955 smc->sm.pend[SMT_TID_NIF_TEST] = smt_get_tid(smc) ; 956 smt_send_nif(smc,dest, FC_SMT_INFO, smc->sm.pend[SMT_TID_NIF_TEST], 957 SMT_REQUEST,0) ; 958} 959 960/* 961 * send ECF request (test purpose) 962 */ 963static void smt_send_ecf_request(struct s_smc *smc, struct fddi_addr *dest, 964 int len) 965{ 966 smc->sm.pend[SMT_TID_ECF] = smt_get_tid(smc) ; 967 smt_send_ecf(smc,dest, FC_SMT_INFO, smc->sm.pend[SMT_TID_ECF], 968 SMT_REQUEST,len) ; 969} 970#endif 971 972/* 973 * echo test 974 */ 975static void smt_echo_test(struct s_smc *smc, int dna) 976{ 977 u_long tid ; 978 979 smc->sm.pend[dna ? SMT_TID_ECF_DNA : SMT_TID_ECF_UNA] = 980 tid = smt_get_tid(smc) ; 981 smt_send_ecf(smc, dna ? 982 &smc->mib.m[MAC0].fddiMACDownstreamNbr : 983 &smc->mib.m[MAC0].fddiMACUpstreamNbr, 984 FC_SMT_INFO,tid, SMT_REQUEST, (SMT_TEST_ECHO_LEN & ~3)-8) ; 985} 986 987/* 988 * generate and send ECF 989 */ 990static void smt_send_ecf(struct s_smc *smc, struct fddi_addr *dest, int fc, 991 u_long tid, int type, int len) 992/* struct fddi_addr *dest; dest address */ 993/* int fc; frame control */ 994/* u_long tid; transaction id */ 995/* int type; frame type */ 996/* int len; frame length */ 997{ 998 struct smt_ecf *ecf ; 999 SMbuf *mb ; 1000 1001 if (!(mb = smt_build_frame(smc,SMT_ECF,type,SMT_ECF_LEN + len))) 1002 return ; 1003 ecf = smtod(mb, struct smt_ecf *) ; 1004 1005 smt_fill_echo(smc,&ecf->ec_echo,tid,len) ; /* set ECHO */ 1006 ecf->smt.smt_dest = *dest ; /* destination address */ 1007 ecf->smt.smt_tid = tid ; /* transaction ID */ 1008 smc->mib.priv.fddiPRIVECF_Req_Tx++ ; 1009 smt_send_frame(smc,mb,fc,0) ; 1010} 1011 1012/* 1013 * generate and send SIF config response 1014 */ 1015 1016static void smt_send_sif_config(struct s_smc *smc, struct fddi_addr *dest, 1017 u_long tid, int local) 1018/* struct fddi_addr *dest; dest address */ 1019/* u_long tid; transaction id */ 1020{ 1021 struct smt_sif_config *sif ; 1022 SMbuf *mb ; 1023 int len ; 1024 if (!(mb = smt_build_frame(smc,SMT_SIF_CONFIG,SMT_REPLY, 1025 SIZEOF_SMT_SIF_CONFIG))) 1026 return ; 1027 1028 sif = smtod(mb, struct smt_sif_config *) ; 1029 smt_fill_timestamp(smc,&sif->ts) ; /* set time stamp */ 1030 smt_fill_sde(smc,&sif->sde) ; /* set station descriptor */ 1031 smt_fill_version(smc,&sif->version) ; /* set version information */ 1032 smt_fill_state(smc,&sif->state) ; /* set state information */ 1033 smt_fill_policy(smc,&sif->policy) ; /* set station policy */ 1034 smt_fill_latency(smc,&sif->latency); /* set station latency */ 1035 smt_fill_neighbor(smc,&sif->neighbor); /* set station neighbor */ 1036 smt_fill_setcount(smc,&sif->setcount) ; /* set count */ 1037 len = smt_fill_path(smc,&sif->path); /* set station path descriptor*/ 1038 sif->smt.smt_dest = *dest ; /* destination address */ 1039 sif->smt.smt_tid = tid ; /* transaction ID */ 1040 smt_add_frame_len(mb,len) ; /* adjust length fields */ 1041 dump_smt(smc,(struct smt_header *)sif,"SIF Configuration Reply") ; 1042 smt_send_frame(smc,mb,FC_SMT_INFO,local) ; 1043} 1044 1045/* 1046 * generate and send SIF operation response 1047 */ 1048 1049static void smt_send_sif_operation(struct s_smc *smc, struct fddi_addr *dest, 1050 u_long tid, int local) 1051/* struct fddi_addr *dest; dest address */ 1052/* u_long tid; transaction id */ 1053{ 1054 struct smt_sif_operation *sif ; 1055 SMbuf *mb ; 1056 int ports ; 1057 int i ; 1058 1059 ports = NUMPHYS ; 1060#ifndef CONCENTRATOR 1061 if (smc->s.sas == SMT_SAS) 1062 ports = 1 ; 1063#endif 1064 1065 if (!(mb = smt_build_frame(smc,SMT_SIF_OPER,SMT_REPLY, 1066 struct_size(sif, lem, ports)))) 1067 return ; 1068 sif = smtod(mb, typeof(sif)); 1069 smt_fill_timestamp(smc,&sif->ts) ; /* set time stamp */ 1070 smt_fill_mac_status(smc,&sif->status) ; /* set mac status */ 1071 smt_fill_mac_counter(smc,&sif->mc) ; /* set mac counter field */ 1072 smt_fill_mac_fnc(smc,&sif->fnc) ; /* set frame not copied counter */ 1073 smt_fill_manufacturer(smc,&sif->man) ; /* set manufacturer field */ 1074 smt_fill_user(smc,&sif->user) ; /* set user field */ 1075 smt_fill_setcount(smc,&sif->setcount) ; /* set count */ 1076 /* 1077 * set link error mon information 1078 */ 1079 if (ports == 1) { 1080 smt_fill_lem(smc,sif->lem,PS) ; 1081 } 1082 else { 1083 for (i = 0 ; i < ports ; i++) { 1084 smt_fill_lem(smc,&sif->lem[i],i) ; 1085 } 1086 } 1087 1088 sif->smt.smt_dest = *dest ; /* destination address */ 1089 sif->smt.smt_tid = tid ; /* transaction ID */ 1090 dump_smt(smc,(struct smt_header *)sif,"SIF Operation Reply") ; 1091 smt_send_frame(smc,mb,FC_SMT_INFO,local) ; 1092} 1093 1094/* 1095 * get and initialize SMT frame 1096 */ 1097SMbuf *smt_build_frame(struct s_smc *smc, int class, int type, 1098 int length) 1099{ 1100 SMbuf *mb ; 1101 struct smt_header *smt ; 1102 1103#if 0 1104 if (!smc->r.sm_ma_avail) { 1105 return 0; 1106 } 1107#endif 1108 if (!(mb = smt_get_mbuf(smc))) 1109 return mb; 1110 1111 mb->sm_len = length ; 1112 smt = smtod(mb, struct smt_header *) ; 1113 smt->smt_dest = fddi_broadcast ; /* set dest = broadcast */ 1114 smt->smt_class = class ; 1115 smt->smt_type = type ; 1116 switch (class) { 1117 case SMT_NIF : 1118 case SMT_SIF_CONFIG : 1119 case SMT_SIF_OPER : 1120 case SMT_ECF : 1121 smt->smt_version = SMT_VID ; 1122 break ; 1123 default : 1124 smt->smt_version = SMT_VID_2 ; 1125 break ; 1126 } 1127 smt->smt_tid = smt_get_tid(smc) ; /* set transaction ID */ 1128 smt->smt_pad = 0 ; 1129 smt->smt_len = length - sizeof(struct smt_header) ; 1130 return mb; 1131} 1132 1133static void smt_add_frame_len(SMbuf *mb, int len) 1134{ 1135 struct smt_header *smt ; 1136 1137 smt = smtod(mb, struct smt_header *) ; 1138 smt->smt_len += len ; 1139 mb->sm_len += len ; 1140} 1141 1142 1143 1144/* 1145 * fill values in UNA parameter 1146 */ 1147static void smt_fill_una(struct s_smc *smc, struct smt_p_una *una) 1148{ 1149 SMTSETPARA(una,SMT_P_UNA) ; 1150 una->una_pad = 0 ; 1151 una->una_node = smc->mib.m[MAC0].fddiMACUpstreamNbr ; 1152} 1153 1154/* 1155 * fill values in SDE parameter 1156 */ 1157static void smt_fill_sde(struct s_smc *smc, struct smt_p_sde *sde) 1158{ 1159 SMTSETPARA(sde,SMT_P_SDE) ; 1160 sde->sde_non_master = smc->mib.fddiSMTNonMaster_Ct ; 1161 sde->sde_master = smc->mib.fddiSMTMaster_Ct ; 1162 sde->sde_mac_count = NUMMACS ; /* only 1 MAC */ 1163#ifdef CONCENTRATOR 1164 sde->sde_type = SMT_SDE_CONCENTRATOR ; 1165#else 1166 sde->sde_type = SMT_SDE_STATION ; 1167#endif 1168} 1169 1170/* 1171 * fill in values in station state parameter 1172 */ 1173static void smt_fill_state(struct s_smc *smc, struct smt_p_state *state) 1174{ 1175 int top ; 1176 int twist ; 1177 1178 SMTSETPARA(state,SMT_P_STATE) ; 1179 state->st_pad = 0 ; 1180 1181 /* determine topology */ 1182 top = 0 ; 1183 if (smc->mib.fddiSMTPeerWrapFlag) { 1184 top |= SMT_ST_WRAPPED ; /* state wrapped */ 1185 } 1186#ifdef CONCENTRATOR 1187 if (cfm_status_unattached(smc)) { 1188 top |= SMT_ST_UNATTACHED ; /* unattached concentrator */ 1189 } 1190#endif 1191 if ((twist = pcm_status_twisted(smc)) & 1) { 1192 top |= SMT_ST_TWISTED_A ; /* twisted cable */ 1193 } 1194 if (twist & 2) { 1195 top |= SMT_ST_TWISTED_B ; /* twisted cable */ 1196 } 1197#ifdef OPT_SRF 1198 top |= SMT_ST_SRF ; 1199#endif 1200 if (pcm_rooted_station(smc)) 1201 top |= SMT_ST_ROOTED_S ; 1202 if (smc->mib.a[0].fddiPATHSbaPayload != 0) 1203 top |= SMT_ST_SYNC_SERVICE ; 1204 state->st_topology = top ; 1205 state->st_dupl_addr = 1206 ((smc->mib.m[MAC0].fddiMACDA_Flag ? SMT_ST_MY_DUPA : 0 ) | 1207 (smc->mib.m[MAC0].fddiMACUNDA_Flag ? SMT_ST_UNA_DUPA : 0)) ; 1208} 1209 1210/* 1211 * fill values in timestamp parameter 1212 */ 1213static void smt_fill_timestamp(struct s_smc *smc, struct smt_p_timestamp *ts) 1214{ 1215 1216 SMTSETPARA(ts,SMT_P_TIMESTAMP) ; 1217 smt_set_timestamp(smc,ts->ts_time) ; 1218} 1219 1220void smt_set_timestamp(struct s_smc *smc, u_char *p) 1221{ 1222 u_long time ; 1223 u_long utime ; 1224 1225 /* 1226 * timestamp is 64 bits long ; resolution is 80 nS 1227 * our clock resolution is 10mS 1228 * 10mS/80ns = 125000 ~ 2^17 = 131072 1229 */ 1230 utime = smt_get_time() ; 1231 time = utime * 100 ; 1232 time /= TICKS_PER_SECOND ; 1233 p[0] = 0 ; 1234 p[1] = (u_char)((time>>(8+8+8+8-1)) & 1) ; 1235 p[2] = (u_char)(time>>(8+8+8-1)) ; 1236 p[3] = (u_char)(time>>(8+8-1)) ; 1237 p[4] = (u_char)(time>>(8-1)) ; 1238 p[5] = (u_char)(time<<1) ; 1239 p[6] = (u_char)(smc->sm.uniq_ticks>>8) ; 1240 p[7] = (u_char)smc->sm.uniq_ticks ; 1241 /* 1242 * make sure we don't wrap: restart whenever the upper digits change 1243 */ 1244 if (utime != smc->sm.uniq_time) { 1245 smc->sm.uniq_ticks = 0 ; 1246 } 1247 smc->sm.uniq_ticks++ ; 1248 smc->sm.uniq_time = utime ; 1249} 1250 1251/* 1252 * fill values in station policy parameter 1253 */ 1254static void smt_fill_policy(struct s_smc *smc, struct smt_p_policy *policy) 1255{ 1256 int i ; 1257 const u_char *map ; 1258 u_short in ; 1259 u_short out ; 1260 1261 /* 1262 * MIB para 101b (fddiSMTConnectionPolicy) coding 1263 * is different from 0005 coding 1264 */ 1265 static const u_char ansi_weirdness[16] = { 1266 0,7,5,3,8,1,6,4,9,10,2,11,12,13,14,15 1267 } ; 1268 SMTSETPARA(policy,SMT_P_POLICY) ; 1269 1270 out = 0 ; 1271 in = smc->mib.fddiSMTConnectionPolicy ; 1272 for (i = 0, map = ansi_weirdness ; i < 16 ; i++) { 1273 if (in & 1) 1274 out |= (1<<*map) ; 1275 in >>= 1 ; 1276 map++ ; 1277 } 1278 policy->pl_config = smc->mib.fddiSMTConfigPolicy ; 1279 policy->pl_connect = out ; 1280} 1281 1282/* 1283 * fill values in latency equivalent parameter 1284 */ 1285static void smt_fill_latency(struct s_smc *smc, struct smt_p_latency *latency) 1286{ 1287 SMTSETPARA(latency,SMT_P_LATENCY) ; 1288 1289 latency->lt_phyout_idx1 = phy_index(smc,0) ; 1290 latency->lt_latency1 = 10 ; /* in octets (byte clock) */ 1291 /* 1292 * note: latency has two phy entries by definition 1293 * for a SAS, the 2nd one is null 1294 */ 1295 if (smc->s.sas == SMT_DAS) { 1296 latency->lt_phyout_idx2 = phy_index(smc,1) ; 1297 latency->lt_latency2 = 10 ; /* in octets (byte clock) */ 1298 } 1299 else { 1300 latency->lt_phyout_idx2 = 0 ; 1301 latency->lt_latency2 = 0 ; 1302 } 1303} 1304 1305/* 1306 * fill values in MAC neighbors parameter 1307 */ 1308static void smt_fill_neighbor(struct s_smc *smc, struct smt_p_neighbor *neighbor) 1309{ 1310 SMTSETPARA(neighbor,SMT_P_NEIGHBORS) ; 1311 1312 neighbor->nb_mib_index = INDEX_MAC ; 1313 neighbor->nb_mac_index = mac_index(smc,1) ; 1314 neighbor->nb_una = smc->mib.m[MAC0].fddiMACUpstreamNbr ; 1315 neighbor->nb_dna = smc->mib.m[MAC0].fddiMACDownstreamNbr ; 1316} 1317 1318/* 1319 * fill values in path descriptor 1320 */ 1321#ifdef CONCENTRATOR 1322#define ALLPHYS NUMPHYS 1323#else 1324#define ALLPHYS ((smc->s.sas == SMT_SAS) ? 1 : 2) 1325#endif 1326 1327static int smt_fill_path(struct s_smc *smc, struct smt_p_path *path) 1328{ 1329 SK_LOC_DECL(int,type) ; 1330 SK_LOC_DECL(int,state) ; 1331 SK_LOC_DECL(int,remote) ; 1332 SK_LOC_DECL(int,mac) ; 1333 int len ; 1334 int p ; 1335 int physp ; 1336 struct smt_phy_rec *phy ; 1337 struct smt_mac_rec *pd_mac ; 1338 1339 len = PARA_LEN + 1340 sizeof(struct smt_mac_rec) * NUMMACS + 1341 sizeof(struct smt_phy_rec) * ALLPHYS ; 1342 path->para.p_type = SMT_P_PATH ; 1343 path->para.p_len = len - PARA_LEN ; 1344 1345 /* PHYs */ 1346 for (p = 0,phy = path->pd_phy ; p < ALLPHYS ; p++, phy++) { 1347 physp = p ; 1348#ifndef CONCENTRATOR 1349 if (smc->s.sas == SMT_SAS) 1350 physp = PS ; 1351#endif 1352 pcm_status_state(smc,physp,&type,&state,&remote,&mac) ; 1353#ifdef LITTLE_ENDIAN 1354 phy->phy_mib_index = smt_swap_short((u_short)p+INDEX_PORT) ; 1355#else 1356 phy->phy_mib_index = p+INDEX_PORT ; 1357#endif 1358 phy->phy_type = type ; 1359 phy->phy_connect_state = state ; 1360 phy->phy_remote_type = remote ; 1361 phy->phy_remote_mac = mac ; 1362 phy->phy_resource_idx = phy_con_resource_index(smc,p) ; 1363 } 1364 1365 /* MAC */ 1366 pd_mac = (struct smt_mac_rec *) phy ; 1367 pd_mac->mac_addr = smc->mib.m[MAC0].fddiMACSMTAddress ; 1368 pd_mac->mac_resource_idx = mac_con_resource_index(smc,1) ; 1369 return len; 1370} 1371 1372/* 1373 * fill values in mac status 1374 */ 1375static void smt_fill_mac_status(struct s_smc *smc, struct smt_p_mac_status *st) 1376{ 1377 SMTSETPARA(st,SMT_P_MAC_STATUS) ; 1378 1379 st->st_mib_index = INDEX_MAC ; 1380 st->st_mac_index = mac_index(smc,1) ; 1381 1382 mac_update_counter(smc) ; 1383 /* 1384 * timer values are represented in SMT as 2's complement numbers 1385 * units : internal : 2's complement BCLK 1386 */ 1387 st->st_t_req = smc->mib.m[MAC0].fddiMACT_Req ; 1388 st->st_t_neg = smc->mib.m[MAC0].fddiMACT_Neg ; 1389 st->st_t_max = smc->mib.m[MAC0].fddiMACT_Max ; 1390 st->st_tvx_value = smc->mib.m[MAC0].fddiMACTvxValue ; 1391 st->st_t_min = smc->mib.m[MAC0].fddiMACT_Min ; 1392 1393 st->st_sba = smc->mib.a[PATH0].fddiPATHSbaPayload ; 1394 st->st_frame_ct = smc->mib.m[MAC0].fddiMACFrame_Ct ; 1395 st->st_error_ct = smc->mib.m[MAC0].fddiMACError_Ct ; 1396 st->st_lost_ct = smc->mib.m[MAC0].fddiMACLost_Ct ; 1397} 1398 1399/* 1400 * fill values in LEM status 1401 */ 1402static void smt_fill_lem(struct s_smc *smc, struct smt_p_lem *lem, int phy) 1403{ 1404 struct fddi_mib_p *mib ; 1405 1406 mib = smc->y[phy].mib ; 1407 1408 SMTSETPARA(lem,SMT_P_LEM) ; 1409 lem->lem_mib_index = phy+INDEX_PORT ; 1410 lem->lem_phy_index = phy_index(smc,phy) ; 1411 lem->lem_pad2 = 0 ; 1412 lem->lem_cutoff = mib->fddiPORTLer_Cutoff ; 1413 lem->lem_alarm = mib->fddiPORTLer_Alarm ; 1414 /* long term bit error rate */ 1415 lem->lem_estimate = mib->fddiPORTLer_Estimate ; 1416 /* # of rejected connections */ 1417 lem->lem_reject_ct = mib->fddiPORTLem_Reject_Ct ; 1418 lem->lem_ct = mib->fddiPORTLem_Ct ; /* total number of errors */ 1419} 1420 1421/* 1422 * fill version parameter 1423 */ 1424static void smt_fill_version(struct s_smc *smc, struct smt_p_version *vers) 1425{ 1426 SK_UNUSED(smc) ; 1427 SMTSETPARA(vers,SMT_P_VERSION) ; 1428 vers->v_pad = 0 ; 1429 vers->v_n = 1 ; /* one version is enough .. */ 1430 vers->v_index = 1 ; 1431 vers->v_version[0] = SMT_VID_2 ; 1432 vers->v_pad2 = 0 ; 1433} 1434 1435#ifdef SMT6_10 1436/* 1437 * fill frame status capabilities 1438 */ 1439/* 1440 * note: this para 200B is NOT in swap table, because it's also set in 1441 * PMF add_para 1442 */ 1443static void smt_fill_fsc(struct s_smc *smc, struct smt_p_fsc *fsc) 1444{ 1445 SK_UNUSED(smc) ; 1446 SMTSETPARA(fsc,SMT_P_FSC) ; 1447 fsc->fsc_pad0 = 0 ; 1448 fsc->fsc_mac_index = INDEX_MAC ; /* this is MIB ; MIB is NOT 1449 * mac_index ()i ! 1450 */ 1451 fsc->fsc_pad1 = 0 ; 1452 fsc->fsc_value = FSC_TYPE0 ; /* "normal" node */ 1453#ifdef LITTLE_ENDIAN 1454 fsc->fsc_mac_index = smt_swap_short(INDEX_MAC) ; 1455 fsc->fsc_value = smt_swap_short(FSC_TYPE0) ; 1456#endif 1457} 1458#endif 1459 1460/* 1461 * fill mac counter field 1462 */ 1463static void smt_fill_mac_counter(struct s_smc *smc, struct smt_p_mac_counter *mc) 1464{ 1465 SMTSETPARA(mc,SMT_P_MAC_COUNTER) ; 1466 mc->mc_mib_index = INDEX_MAC ; 1467 mc->mc_index = mac_index(smc,1) ; 1468 mc->mc_receive_ct = smc->mib.m[MAC0].fddiMACCopied_Ct ; 1469 mc->mc_transmit_ct = smc->mib.m[MAC0].fddiMACTransmit_Ct ; 1470} 1471 1472/* 1473 * fill mac frame not copied counter 1474 */ 1475static void smt_fill_mac_fnc(struct s_smc *smc, struct smt_p_mac_fnc *fnc) 1476{ 1477 SMTSETPARA(fnc,SMT_P_MAC_FNC) ; 1478 fnc->nc_mib_index = INDEX_MAC ; 1479 fnc->nc_index = mac_index(smc,1) ; 1480 fnc->nc_counter = smc->mib.m[MAC0].fddiMACNotCopied_Ct ; 1481} 1482 1483 1484/* 1485 * fill manufacturer field 1486 */ 1487static void smt_fill_manufacturer(struct s_smc *smc, 1488 struct smp_p_manufacturer *man) 1489{ 1490 SMTSETPARA(man,SMT_P_MANUFACTURER) ; 1491 memcpy((char *) man->mf_data, 1492 (char *) smc->mib.fddiSMTManufacturerData, 1493 sizeof(man->mf_data)) ; 1494} 1495 1496/* 1497 * fill user field 1498 */ 1499static void smt_fill_user(struct s_smc *smc, struct smp_p_user *user) 1500{ 1501 SMTSETPARA(user,SMT_P_USER) ; 1502 memcpy((char *) user->us_data, 1503 (char *) smc->mib.fddiSMTUserData, 1504 sizeof(user->us_data)) ; 1505} 1506 1507/* 1508 * fill set count 1509 */ 1510static void smt_fill_setcount(struct s_smc *smc, struct smt_p_setcount *setcount) 1511{ 1512 SK_UNUSED(smc) ; 1513 SMTSETPARA(setcount,SMT_P_SETCOUNT) ; 1514 setcount->count = smc->mib.fddiSMTSetCount.count ; 1515 memcpy((char *)setcount->timestamp, 1516 (char *)smc->mib.fddiSMTSetCount.timestamp,8) ; 1517} 1518 1519/* 1520 * fill echo data 1521 */ 1522static void smt_fill_echo(struct s_smc *smc, struct smt_p_echo *echo, u_long seed, 1523 int len) 1524{ 1525 u_char *p ; 1526 1527 SK_UNUSED(smc) ; 1528 SMTSETPARA(echo,SMT_P_ECHODATA) ; 1529 echo->para.p_len = len ; 1530 for (p = echo->ec_data ; len ; len--) { 1531 *p++ = (u_char) seed ; 1532 seed += 13 ; 1533 } 1534} 1535 1536/* 1537 * clear DNA and UNA 1538 * called from CFM if configuration changes 1539 */ 1540static void smt_clear_una_dna(struct s_smc *smc) 1541{ 1542 smc->mib.m[MAC0].fddiMACUpstreamNbr = SMT_Unknown ; 1543 smc->mib.m[MAC0].fddiMACDownstreamNbr = SMT_Unknown ; 1544} 1545 1546static void smt_clear_old_una_dna(struct s_smc *smc) 1547{ 1548 smc->mib.m[MAC0].fddiMACOldUpstreamNbr = SMT_Unknown ; 1549 smc->mib.m[MAC0].fddiMACOldDownstreamNbr = SMT_Unknown ; 1550} 1551 1552u_long smt_get_tid(struct s_smc *smc) 1553{ 1554 u_long tid ; 1555 while ((tid = ++(smc->sm.smt_tid) ^ SMT_TID_MAGIC) == 0) 1556 ; 1557 return tid & 0x3fffffffL; 1558} 1559 1560#ifdef LITTLE_ENDIAN 1561/* 1562 * table of parameter lengths 1563 */ 1564static const struct smt_pdef { 1565 int ptype ; 1566 int plen ; 1567 const char *pswap ; 1568} smt_pdef[] = { 1569 { SMT_P_UNA, sizeof(struct smt_p_una) , 1570 SWAP_SMT_P_UNA } , 1571 { SMT_P_SDE, sizeof(struct smt_p_sde) , 1572 SWAP_SMT_P_SDE } , 1573 { SMT_P_STATE, sizeof(struct smt_p_state) , 1574 SWAP_SMT_P_STATE } , 1575 { SMT_P_TIMESTAMP,sizeof(struct smt_p_timestamp) , 1576 SWAP_SMT_P_TIMESTAMP } , 1577 { SMT_P_POLICY, sizeof(struct smt_p_policy) , 1578 SWAP_SMT_P_POLICY } , 1579 { SMT_P_LATENCY, sizeof(struct smt_p_latency) , 1580 SWAP_SMT_P_LATENCY } , 1581 { SMT_P_NEIGHBORS,sizeof(struct smt_p_neighbor) , 1582 SWAP_SMT_P_NEIGHBORS } , 1583 { SMT_P_PATH, sizeof(struct smt_p_path) , 1584 SWAP_SMT_P_PATH } , 1585 { SMT_P_MAC_STATUS,sizeof(struct smt_p_mac_status) , 1586 SWAP_SMT_P_MAC_STATUS } , 1587 { SMT_P_LEM, sizeof(struct smt_p_lem) , 1588 SWAP_SMT_P_LEM } , 1589 { SMT_P_MAC_COUNTER,sizeof(struct smt_p_mac_counter) , 1590 SWAP_SMT_P_MAC_COUNTER } , 1591 { SMT_P_MAC_FNC,sizeof(struct smt_p_mac_fnc) , 1592 SWAP_SMT_P_MAC_FNC } , 1593 { SMT_P_PRIORITY,sizeof(struct smt_p_priority) , 1594 SWAP_SMT_P_PRIORITY } , 1595 { SMT_P_EB,sizeof(struct smt_p_eb) , 1596 SWAP_SMT_P_EB } , 1597 { SMT_P_MANUFACTURER,sizeof(struct smp_p_manufacturer) , 1598 SWAP_SMT_P_MANUFACTURER } , 1599 { SMT_P_REASON, sizeof(struct smt_p_reason) , 1600 SWAP_SMT_P_REASON } , 1601 { SMT_P_REFUSED, sizeof(struct smt_p_refused) , 1602 SWAP_SMT_P_REFUSED } , 1603 { SMT_P_VERSION, sizeof(struct smt_p_version) , 1604 SWAP_SMT_P_VERSION } , 1605#ifdef ESS 1606 { SMT_P0015, sizeof(struct smt_p_0015) , SWAP_SMT_P0015 } , 1607 { SMT_P0016, sizeof(struct smt_p_0016) , SWAP_SMT_P0016 } , 1608 { SMT_P0017, sizeof(struct smt_p_0017) , SWAP_SMT_P0017 } , 1609 { SMT_P0018, sizeof(struct smt_p_0018) , SWAP_SMT_P0018 } , 1610 { SMT_P0019, sizeof(struct smt_p_0019) , SWAP_SMT_P0019 } , 1611 { SMT_P001A, sizeof(struct smt_p_001a) , SWAP_SMT_P001A } , 1612 { SMT_P001B, sizeof(struct smt_p_001b) , SWAP_SMT_P001B } , 1613 { SMT_P001C, sizeof(struct smt_p_001c) , SWAP_SMT_P001C } , 1614 { SMT_P001D, sizeof(struct smt_p_001d) , SWAP_SMT_P001D } , 1615#endif 1616#if 0 1617 { SMT_P_FSC, sizeof(struct smt_p_fsc) , 1618 SWAP_SMT_P_FSC } , 1619#endif 1620 1621 { SMT_P_SETCOUNT,0, SWAP_SMT_P_SETCOUNT } , 1622 { SMT_P1048, 0, SWAP_SMT_P1048 } , 1623 { SMT_P208C, 0, SWAP_SMT_P208C } , 1624 { SMT_P208D, 0, SWAP_SMT_P208D } , 1625 { SMT_P208E, 0, SWAP_SMT_P208E } , 1626 { SMT_P208F, 0, SWAP_SMT_P208F } , 1627 { SMT_P2090, 0, SWAP_SMT_P2090 } , 1628#ifdef ESS 1629 { SMT_P320B, sizeof(struct smt_p_320b) , SWAP_SMT_P320B } , 1630 { SMT_P320F, sizeof(struct smt_p_320f) , SWAP_SMT_P320F } , 1631 { SMT_P3210, sizeof(struct smt_p_3210) , SWAP_SMT_P3210 } , 1632#endif 1633 { SMT_P4050, 0, SWAP_SMT_P4050 } , 1634 { SMT_P4051, 0, SWAP_SMT_P4051 } , 1635 { SMT_P4052, 0, SWAP_SMT_P4052 } , 1636 { SMT_P4053, 0, SWAP_SMT_P4053 } , 1637} ; 1638 1639#define N_SMT_PLEN ARRAY_SIZE(smt_pdef) 1640#endif 1641 1642int smt_check_para(struct s_smc *smc, struct smt_header *sm, 1643 const u_short list[]) 1644{ 1645 const u_short *p = list ; 1646 while (*p) { 1647 if (!sm_to_para(smc,sm,(int) *p)) { 1648 DB_SMT("SMT: smt_check_para - missing para %hx", *p); 1649 return -1; 1650 } 1651 p++ ; 1652 } 1653 return 0; 1654} 1655 1656void *sm_to_para(struct s_smc *smc, struct smt_header *sm, int para) 1657{ 1658 char *p ; 1659 int len ; 1660 int plen ; 1661 void *found = NULL; 1662 1663 SK_UNUSED(smc) ; 1664 1665 len = sm->smt_len ; 1666 p = (char *)(sm+1) ; /* pointer to info */ 1667 while (len > 0 ) { 1668 if (((struct smt_para *)p)->p_type == para) 1669 found = (void *) p ; 1670 plen = ((struct smt_para *)p)->p_len + PARA_LEN ; 1671 p += plen ; 1672 len -= plen ; 1673 if (len < 0) { 1674 DB_SMT("SMT : sm_to_para - length error %d", plen); 1675 return NULL; 1676 } 1677 if ((plen & 3) && (para != SMT_P_ECHODATA)) { 1678 DB_SMT("SMT : sm_to_para - odd length %d", plen); 1679 return NULL; 1680 } 1681 if (found) 1682 return found; 1683 } 1684 return NULL; 1685} 1686 1687#if 0 1688/* 1689 * send ANTC data test frame 1690 */ 1691void fddi_send_antc(struct s_smc *smc, struct fddi_addr *dest) 1692{ 1693 SK_UNUSED(smc) ; 1694 SK_UNUSED(dest) ; 1695#if 0 1696 SMbuf *mb ; 1697 struct smt_header *smt ; 1698 int i ; 1699 char *p ; 1700 1701 mb = smt_get_mbuf() ; 1702 mb->sm_len = 3000+12 ; 1703 p = smtod(mb, char *) + 12 ; 1704 for (i = 0 ; i < 3000 ; i++) 1705 *p++ = 1 << (i&7) ; 1706 1707 smt = smtod(mb, struct smt_header *) ; 1708 smt->smt_dest = *dest ; 1709 smt->smt_source = smc->mib.m[MAC0].fddiMACSMTAddress ; 1710 smt_send_mbuf(smc,mb,FC_ASYNC_LLC) ; 1711#endif 1712} 1713#endif 1714 1715/* 1716 * return static mac index 1717 */ 1718static int mac_index(struct s_smc *smc, int mac) 1719{ 1720 SK_UNUSED(mac) ; 1721#ifdef CONCENTRATOR 1722 SK_UNUSED(smc) ; 1723 return NUMPHYS + 1; 1724#else 1725 return (smc->s.sas == SMT_SAS) ? 2 : 3; 1726#endif 1727} 1728 1729/* 1730 * return static phy index 1731 */ 1732static int phy_index(struct s_smc *smc, int phy) 1733{ 1734 SK_UNUSED(smc) ; 1735 return phy + 1; 1736} 1737 1738/* 1739 * return dynamic mac connection resource index 1740 */ 1741static int mac_con_resource_index(struct s_smc *smc, int mac) 1742{ 1743#ifdef CONCENTRATOR 1744 SK_UNUSED(smc) ; 1745 SK_UNUSED(mac) ; 1746 return entity_to_index(smc, cem_get_downstream(smc, ENTITY_MAC)); 1747#else 1748 SK_UNUSED(mac) ; 1749 switch (smc->mib.fddiSMTCF_State) { 1750 case SC9_C_WRAP_A : 1751 case SC5_THRU_B : 1752 case SC11_C_WRAP_S : 1753 return 1; 1754 case SC10_C_WRAP_B : 1755 case SC4_THRU_A : 1756 return 2; 1757 } 1758 return smc->s.sas == SMT_SAS ? 2 : 3; 1759#endif 1760} 1761 1762/* 1763 * return dynamic phy connection resource index 1764 */ 1765static int phy_con_resource_index(struct s_smc *smc, int phy) 1766{ 1767#ifdef CONCENTRATOR 1768 return entity_to_index(smc, cem_get_downstream(smc, ENTITY_PHY(phy))) ; 1769#else 1770 switch (smc->mib.fddiSMTCF_State) { 1771 case SC9_C_WRAP_A : 1772 return phy == PA ? 3 : 2; 1773 case SC10_C_WRAP_B : 1774 return phy == PA ? 1 : 3; 1775 case SC4_THRU_A : 1776 return phy == PA ? 3 : 1; 1777 case SC5_THRU_B : 1778 return phy == PA ? 2 : 3; 1779 case SC11_C_WRAP_S : 1780 return 2; 1781 } 1782 return phy; 1783#endif 1784} 1785 1786#ifdef CONCENTRATOR 1787static int entity_to_index(struct s_smc *smc, int e) 1788{ 1789 if (e == ENTITY_MAC) 1790 return mac_index(smc, 1); 1791 else 1792 return phy_index(smc, e - ENTITY_PHY(0)); 1793} 1794#endif 1795 1796#ifdef LITTLE_ENDIAN 1797static int smt_swap_short(u_short s) 1798{ 1799 return ((s>>8)&0xff) | ((s&0xff)<<8); 1800} 1801 1802void smt_swap_para(struct smt_header *sm, int len, int direction) 1803/* int direction; 0 encode 1 decode */ 1804{ 1805 struct smt_para *pa ; 1806 const struct smt_pdef *pd ; 1807 char *p ; 1808 int plen ; 1809 int type ; 1810 int i ; 1811 1812/* printf("smt_swap_para sm %x len %d dir %d\n", 1813 sm,len,direction) ; 1814 */ 1815 smt_string_swap((char *)sm,SWAP_SMTHEADER,len) ; 1816 1817 /* swap args */ 1818 len -= sizeof(struct smt_header) ; 1819 1820 p = (char *) (sm + 1) ; 1821 while (len > 0) { 1822 pa = (struct smt_para *) p ; 1823 plen = pa->p_len ; 1824 type = pa->p_type ; 1825 pa->p_type = smt_swap_short(pa->p_type) ; 1826 pa->p_len = smt_swap_short(pa->p_len) ; 1827 if (direction) { 1828 plen = pa->p_len ; 1829 type = pa->p_type ; 1830 } 1831 /* 1832 * note: paras can have 0 length ! 1833 */ 1834 if (plen < 0) 1835 break ; 1836 plen += PARA_LEN ; 1837 for (i = N_SMT_PLEN, pd = smt_pdef; i ; i--,pd++) { 1838 if (pd->ptype == type) 1839 break ; 1840 } 1841 if (i && pd->pswap) { 1842 smt_string_swap(p+PARA_LEN,pd->pswap,len) ; 1843 } 1844 len -= plen ; 1845 p += plen ; 1846 } 1847} 1848 1849 1850static void smt_string_swap(char *data, const char *format, int len) 1851{ 1852 const char *open_paren = NULL ; 1853 1854 while (len > 0 && *format) { 1855 switch (*format) { 1856 case '[' : 1857 open_paren = format ; 1858 break ; 1859 case ']' : 1860 format = open_paren ; 1861 break ; 1862 case '1' : 1863 case '2' : 1864 case '3' : 1865 case '4' : 1866 case '5' : 1867 case '6' : 1868 case '7' : 1869 case '8' : 1870 case '9' : 1871 data += *format - '0' ; 1872 len -= *format - '0' ; 1873 break ; 1874 case 'c': 1875 data++ ; 1876 len-- ; 1877 break ; 1878 case 's' : 1879 swap(data[0], data[1]) ; 1880 data += 2 ; 1881 len -= 2 ; 1882 break ; 1883 case 'l' : 1884 swap(data[0], data[3]) ; 1885 swap(data[1], data[2]) ; 1886 data += 4 ; 1887 len -= 4 ; 1888 break ; 1889 } 1890 format++ ; 1891 } 1892} 1893#else 1894void smt_swap_para(struct smt_header *sm, int len, int direction) 1895/* int direction; 0 encode 1 decode */ 1896{ 1897 SK_UNUSED(sm) ; 1898 SK_UNUSED(len) ; 1899 SK_UNUSED(direction) ; 1900} 1901#endif 1902 1903/* 1904 * PMF actions 1905 */ 1906int smt_action(struct s_smc *smc, int class, int code, int index) 1907{ 1908 int event ; 1909 int port ; 1910 DB_SMT("SMT: action %d code %d", class, code); 1911 switch(class) { 1912 case SMT_STATION_ACTION : 1913 switch(code) { 1914 case SMT_STATION_ACTION_CONNECT : 1915 smc->mib.fddiSMTRemoteDisconnectFlag = FALSE ; 1916 queue_event(smc,EVENT_ECM,EC_CONNECT) ; 1917 break ; 1918 case SMT_STATION_ACTION_DISCONNECT : 1919 queue_event(smc,EVENT_ECM,EC_DISCONNECT) ; 1920 smc->mib.fddiSMTRemoteDisconnectFlag = TRUE ; 1921 RS_SET(smc,RS_DISCONNECT) ; 1922 AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long) 1923 FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_DISCONNECT, 1924 smt_get_event_word(smc)); 1925 break ; 1926 case SMT_STATION_ACTION_PATHTEST : 1927 AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long) 1928 FDDI_SMT_EVENT, (u_long) FDDI_PATH_TEST, 1929 smt_get_event_word(smc)); 1930 break ; 1931 case SMT_STATION_ACTION_SELFTEST : 1932 AIX_EVENT(smc, (u_long) FDDI_RING_STATUS, (u_long) 1933 FDDI_SMT_EVENT, (u_long) FDDI_REMOTE_SELF_TEST, 1934 smt_get_event_word(smc)); 1935 break ; 1936 case SMT_STATION_ACTION_DISABLE_A : 1937 if (smc->y[PA].pc_mode == PM_PEER) { 1938 RS_SET(smc,RS_EVENT) ; 1939 queue_event(smc,EVENT_PCM+PA,PC_DISABLE) ; 1940 } 1941 break ; 1942 case SMT_STATION_ACTION_DISABLE_B : 1943 if (smc->y[PB].pc_mode == PM_PEER) { 1944 RS_SET(smc,RS_EVENT) ; 1945 queue_event(smc,EVENT_PCM+PB,PC_DISABLE) ; 1946 } 1947 break ; 1948 case SMT_STATION_ACTION_DISABLE_M : 1949 for (port = 0 ; port < NUMPHYS ; port++) { 1950 if (smc->mib.p[port].fddiPORTMy_Type != TM) 1951 continue ; 1952 RS_SET(smc,RS_EVENT) ; 1953 queue_event(smc,EVENT_PCM+port,PC_DISABLE) ; 1954 } 1955 break ; 1956 default : 1957 return 1; 1958 } 1959 break ; 1960 case SMT_PORT_ACTION : 1961 switch(code) { 1962 case SMT_PORT_ACTION_ENABLE : 1963 event = PC_ENABLE ; 1964 break ; 1965 case SMT_PORT_ACTION_DISABLE : 1966 event = PC_DISABLE ; 1967 break ; 1968 case SMT_PORT_ACTION_MAINT : 1969 event = PC_MAINT ; 1970 break ; 1971 case SMT_PORT_ACTION_START : 1972 event = PC_START ; 1973 break ; 1974 case SMT_PORT_ACTION_STOP : 1975 event = PC_STOP ; 1976 break ; 1977 default : 1978 return 1; 1979 } 1980 queue_event(smc,EVENT_PCM+index,event) ; 1981 break ; 1982 default : 1983 return 1; 1984 } 1985 return 0; 1986} 1987 1988/* 1989 * canonical conversion of <len> bytes beginning form *data 1990 */ 1991#ifdef USE_CAN_ADDR 1992static void hwm_conv_can(struct s_smc *smc, char *data, int len) 1993{ 1994 int i ; 1995 1996 SK_UNUSED(smc) ; 1997 1998 for (i = len; i ; i--, data++) 1999 *data = bitrev8(*data); 2000} 2001#endif 2002 2003#endif /* no SLIM_SMT */ 2004 2005