workbench/devs/networks/pcnet32/handler.c

   1 /*
   2  * $Id$
   3  */
   4
   5 /*
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful, but
  12     WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14     General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  19     MA 02111-1307, USA.
  20 */
  21
  22 #include <string.h>
  23
  24 #include <exec/types.h>
  25 #include <exec/resident.h>
  26 #include <exec/io.h>
  27 #include <exec/ports.h>
  28 #include <exec/errors.h>
  29
  30 #include <devices/sana2.h>
  31 #include <devices/sana2specialstats.h>
  32 #include <devices/newstyle.h>
  33
  34 #include <utility/utility.h>
  35 #include <utility/tagitem.h>
  36 #include <utility/hooks.h>
  37
  38 #include <proto/exec.h>
  39 #include <proto/dos.h>
  40 #include <proto/battclock.h>
  41
  42 #include <stdlib.h>
  43
  44 #include "pcnet32.h"
  45 #include "unit.h"
  46 #include LC_LIBDEFS_FILE
  47
  48 #define KNOWN_EVENTS \
  49     (S2EVENT_ERROR | S2EVENT_TX | S2EVENT_RX | S2EVENT_ONLINE \
  50     | S2EVENT_OFFLINE | S2EVENT_BUFF | S2EVENT_HARDWARE | S2EVENT_SOFTWARE)
  51
  52 static BOOL CmdInvalid(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  53 static BOOL CmdRead(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  54 static BOOL CmdWrite(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  55 static BOOL CmdFlush(LIBBASETYPEPTR LIBBASE, struct IORequest *request);
  56 static BOOL CmdS2DeviceQuery(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  57 static BOOL CmdGetStationAddress(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  58 static BOOL CmdConfigInterface(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  59 static BOOL CmdBroadcast(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  60 static BOOL CmdTrackType(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  61 static BOOL CmdUntrackType(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  62 static BOOL CmdGetTypeStats(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  63 static BOOL CmdGetGlobalStats(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  64 static BOOL CmdDeviceQuery(LIBBASETYPEPTR LIBBASE, struct IOStdReq *request);
  65 static BOOL CmdOnEvent(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  66 static BOOL CmdReadOrphan(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  67 static BOOL CmdOnline(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  68 static BOOL CmdOffline(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  69 static BOOL CmdAddMulticastAddresses(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  70 static BOOL CmdDelMulticastAddresses(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request);
  71
  72 static const UWORD supported_commands[] =
  73 {
  74     CMD_READ,
  75     CMD_WRITE,
  76     CMD_FLUSH,
  77     S2_DEVICEQUERY,
  78     S2_GETSTATIONADDRESS,
  79     S2_CONFIGINTERFACE,
  80     S2_ADDMULTICASTADDRESS,
  81     S2_DELMULTICASTADDRESS,
  82     S2_MULTICAST,
  83     S2_BROADCAST,
  84     S2_TRACKTYPE,
  85     S2_UNTRACKTYPE,
  86     S2_GETTYPESTATS,
  87 //    S2_GETSPECIALSTATS,
  88     S2_GETGLOBALSTATS,
  89     S2_ONEVENT,
  90     S2_READORPHAN,
  91     S2_ONLINE,
  92     S2_OFFLINE,
  93     NSCMD_DEVICEQUERY,
  94     S2_ADDMULTICASTADDRESSES,
  95     S2_DELMULTICASTADDRESSES,
  96     0
  97 };
  98
  99 void handle_request(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 100 {
 101     BOOL complete;
 102
 103     switch(request->ios2_Req.io_Command)
 104     {
 105         case CMD_READ:
 106             complete = CmdRead(LIBBASE, request);
 107             break;
 108
 109         case CMD_WRITE:
 110         case S2_MULTICAST:
 111             complete = CmdWrite(LIBBASE, request);
 112             break;
 113
 114         case CMD_FLUSH:
 115             complete = CmdFlush(LIBBASE, (struct IORequest *)request);
 116             break;
 117
 118         case S2_DEVICEQUERY:
 119             complete = CmdS2DeviceQuery(LIBBASE, request);
 120             break;
 121
 122         case S2_GETSTATIONADDRESS:
 123             complete = CmdGetStationAddress(LIBBASE, request);
 124             break;
 125
 126         case S2_CONFIGINTERFACE:
 127             complete = CmdConfigInterface(LIBBASE, request);
 128             break;
 129
 130         case S2_BROADCAST:
 131             complete = CmdBroadcast(LIBBASE, request);
 132             break;
 133
 134         case S2_TRACKTYPE:
 135             complete = CmdTrackType(LIBBASE, request);
 136             break;
 137
 138         case S2_UNTRACKTYPE:
 139             complete = CmdUntrackType(LIBBASE, request);
 140             break;
 141
 142         case S2_GETTYPESTATS:
 143             complete = CmdGetTypeStats(LIBBASE, request);
 144             break;
 145
 146         case S2_GETGLOBALSTATS:
 147             complete = CmdGetGlobalStats(LIBBASE, request);
 148             break;
 149
 150         case S2_ONEVENT:
 151             complete = CmdOnEvent(LIBBASE, request);
 152             break;
 153
 154         case S2_READORPHAN:
 155             complete = CmdReadOrphan(LIBBASE, request);
 156             break;
 157
 158         case S2_ONLINE:
 159             complete = CmdOnline(LIBBASE, request);
 160             break;
 161
 162         case S2_OFFLINE:
 163             complete = CmdOffline(LIBBASE, request);
 164             break;
 165
 166         case S2_ADDMULTICASTADDRESS:
 167         case S2_ADDMULTICASTADDRESSES:
 168             complete = CmdAddMulticastAddresses(LIBBASE, request);
 169             break;
 170
 171         case S2_DELMULTICASTADDRESS:
 172         case S2_DELMULTICASTADDRESSES:
 173             complete = CmdDelMulticastAddresses(LIBBASE, request);
 174             break;
 175
 176         case NSCMD_DEVICEQUERY:
 177             complete = CmdDeviceQuery(LIBBASE, (struct IOStdReq *)request);
 178             break;
 179
 180         default:
 181             complete = CmdInvalid(LIBBASE, request);
 182     }
 183
 184     if(complete && (request->ios2_Req.io_Flags & IOF_QUICK) == 0)
 185         ReplyMsg((APTR)request);
 186
 187     ReleaseSemaphore(&((struct PCN32Unit *)request->ios2_Req.io_Unit)->pcnu_unit_lock);
 188 }
 189
 190 static BOOL CmdInvalid(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 191 {
 192     request->ios2_Req.io_Error = IOERR_NOCMD;
 193     request->ios2_WireError = S2WERR_GENERIC_ERROR;
 194
 195     return TRUE;
 196 }
 197
 198 static BOOL CmdRead(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 199 {
 200     struct PCN32Unit *unit;
 201     struct Opener *opener;
 202     BOOL complete = FALSE;
 203
 204     unit = (APTR)request->ios2_Req.io_Unit;
 205
 206 D(bug("%s: S2CmdRead()\n", unit->pcnu_name));
 207
 208     if((unit->pcnu_flags & IFF_UP) != 0)
 209     {
 210         opener = request->ios2_BufferManagement;
 211         request->ios2_Req.io_Flags &= ~IOF_QUICK;
 212         PutMsg(&opener->read_port, (struct Message *)request);
 213     }
 214     else
 215     {
 216         request->ios2_Req.io_Error = S2ERR_OUTOFSERVICE;
 217         request->ios2_WireError = S2WERR_UNIT_OFFLINE;
 218         complete = TRUE;
 219     }
 220
 221     /* Return */
 222
 223     return complete;
 224 }
 225
 226 static BOOL CmdWrite(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 227 {
 228     struct PCN32Unit *unit;
 229     BYTE error = 0;
 230     ULONG wire_error = S2WERR_GENERIC_ERROR;
 231     BOOL complete = FALSE;
 232
 233     /* Check request is valid */
 234
 235     unit = (APTR)request->ios2_Req.io_Unit;
 236
 237 D(bug("%s: S2CmdWrite()\n", unit->pcnu_name));
 238
 239     if((unit->pcnu_flags & IFF_UP) == 0)
 240     {
 241         error = S2ERR_OUTOFSERVICE;
 242         wire_error = S2WERR_UNIT_OFFLINE;
 243     }
 244     else if((request->ios2_Req.io_Command == S2_MULTICAST) &&
 245             ((request->ios2_DstAddr[0] & 0x1) == 0))
 246     {
 247         error = S2ERR_BAD_ADDRESS;
 248         wire_error = S2WERR_BAD_MULTICAST;
 249     }
 250
 251     /* Queue request for sending */
 252
 253     if(error == 0) {
 254         request->ios2_Req.io_Flags &= ~IOF_QUICK;
 255         PutMsg(unit->pcnu_request_ports[WRITE_QUEUE], (APTR)request);
 256     }
 257     else
 258     {
 259         request->ios2_Req.io_Error = error;
 260         request->ios2_WireError = wire_error;
 261         complete = TRUE;
 262     }
 263
 264     /* Return */
 265
 266     return complete;
 267 }
 268
 269 static BOOL CmdFlush(LIBBASETYPEPTR LIBBASE, struct IORequest *request)
 270 {
 271     FlushUnit(LIBBASE, (APTR)request->io_Unit, EVENT_QUEUE, IOERR_ABORTED);
 272     return TRUE;
 273 }
 274
 275 static BOOL CmdS2DeviceQuery(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 276 {
 277     D(struct PCN32Unit *unit = (APTR)request->ios2_Req.io_Unit);
 278     // struct fe_priv *np = unit->pcnu_fe_priv;
 279     struct Sana2DeviceQuery *info;
 280     ULONG size_available, size;
 281
 282 D(bug("%s: S2CmdDeviceQuery()\n", unit->pcnu_name));
 283
 284     /* Copy device info */
 285
 286     info = request->ios2_StatData;
 287     size = size_available = info->SizeAvailable;
 288     if(size > sizeof(struct Sana2DeviceQuery))
 289         size = sizeof(struct Sana2DeviceQuery);
 290
 291     CopyMem(&LIBBASE->pcnb_Sana2Info, info, size);
 292
 293     info->BPS = 100000000;
 294     info->MTU = ETH_MTU;
 295     info->HardwareType = S2WireType_Ethernet;
 296     info->SizeAvailable = size_available;
 297     info->SizeSupplied = size;
 298
 299     /* Return */
 300
 301     return TRUE;
 302 }
 303
 304 static BOOL CmdGetStationAddress(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 305 {
 306     struct PCN32Unit *unit;
 307
 308     /* Copy addresses */
 309
 310     unit = (APTR)request->ios2_Req.io_Unit;
 311
 312 D(bug("%s: S2CmdGetStationAddress()\n", unit->pcnu_name));
 313
 314     CopyMem(unit->pcnu_dev_addr, request->ios2_SrcAddr, ETH_ADDRESSSIZE);
 315     CopyMem(unit->pcnu_org_addr, request->ios2_DstAddr, ETH_ADDRESSSIZE);
 316
 317     /* Return */
 318
 319     return TRUE;
 320 }
 321
 322 static BOOL CmdConfigInterface(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 323 {
 324     struct PCN32Unit *unit;
 325
 326     /* Configure adapter */
 327
 328     unit = (APTR)request->ios2_Req.io_Unit;
 329
 330 D(bug("%s: S2CmdConfigInterface()\n", unit->pcnu_name));
 331
 332     if((unit->pcnu_flags & IFF_CONFIGURED) == 0)
 333     {
 334         CopyMem(request->ios2_SrcAddr, unit->pcnu_dev_addr, ETH_ADDRESSSIZE);
 335         unit->set_mac_address(unit);
 336         unit->pcnu_flags |= IFF_CONFIGURED;
 337     }
 338     else
 339     {
 340         request->ios2_Req.io_Error = S2ERR_BAD_STATE;
 341         request->ios2_WireError = S2WERR_IS_CONFIGURED;
 342     }
 343
 344     /* Return */
 345
 346     return TRUE;
 347 }
 348
 349 static BOOL CmdBroadcast(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 350 {
 351     /* Fill in the broadcast address as destination */
 352
 353     memset(request->ios2_DstAddr, 0xff, 6);
 354
 355     /* Queue the write as normal */
 356
 357     return CmdWrite(LIBBASE, request);
 358 }
 359
 360 static BOOL CmdTrackType(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 361 {
 362     struct PCN32Unit *unit;
 363     struct Opener *opener;
 364     ULONG packet_type, wire_error=0;
 365     struct TypeTracker *tracker;
 366     struct TypeStats *initial_stats;
 367     BYTE error = 0;
 368
 369     unit = (APTR)request->ios2_Req.io_Unit;
 370
 371 D(bug("%s: S2CmdTrackType()\n", unit->pcnu_name));
 372
 373     packet_type = request->ios2_PacketType;
 374
 375     /* Get global tracker */
 376
 377     tracker = (struct TypeTracker *)
 378         FindTypeStats(LIBBASE, unit, &unit->pcnu_type_trackers, packet_type);
 379
 380     if(tracker != NULL)
 381         tracker->user_count++;
 382     else
 383     {
 384         tracker =
 385             AllocMem(sizeof(struct TypeTracker), MEMF_PUBLIC|MEMF_CLEAR);
 386         if(tracker != NULL)
 387         {
 388             tracker->packet_type = packet_type;
 389             tracker->user_count = 1;
 390
 391             Disable();
 392             AddTail((APTR)&unit->pcnu_type_trackers, (APTR)tracker);
 393             Enable();
 394         }
 395    }
 396
 397     /* Store initial figures for this opener */
 398
 399     opener = request->ios2_BufferManagement;
 400     initial_stats = FindTypeStats(LIBBASE, unit, &opener->initial_stats, packet_type);
 401
 402     if(initial_stats != NULL)
 403     {
 404         error = S2ERR_BAD_STATE;
 405         wire_error = S2WERR_ALREADY_TRACKED;
 406     }
 407
 408     if(error == 0)
 409     {
 410         initial_stats = AllocMem(sizeof(struct TypeStats), MEMF_PUBLIC);
 411         if(initial_stats == NULL)
 412         {
 413             error = S2ERR_NO_RESOURCES;
 414             wire_error = S2WERR_GENERIC_ERROR;
 415         }
 416     }
 417
 418     if(error == 0)
 419     {
 420         CopyMem(tracker, initial_stats, sizeof(struct TypeStats));
 421         AddTail((APTR)&opener->initial_stats, (APTR)initial_stats);
 422     }
 423
 424     /* Return */
 425
 426     request->ios2_Req.io_Error = error;
 427     request->ios2_WireError = wire_error;
 428     return TRUE;
 429 }
 430
 431 static BOOL CmdUntrackType(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 432 {
 433     struct PCN32Unit *unit;
 434     struct Opener *opener;
 435     ULONG packet_type;
 436     struct TypeTracker *tracker;
 437     struct TypeStats *initial_stats;
 438
 439     unit = (APTR)request->ios2_Req.io_Unit;
 440
 441 D(bug("%s: S2CmdUntrackType()\n", unit->pcnu_name));
 442
 443     packet_type = request->ios2_PacketType;
 444
 445     /* Get global tracker and initial figures */
 446
 447     tracker = (struct TypeTracker *)
 448         FindTypeStats(LIBBASE, unit, &unit->pcnu_type_trackers, packet_type);
 449     opener = request->ios2_BufferManagement;
 450     initial_stats = FindTypeStats(LIBBASE, unit, &opener->initial_stats, packet_type);
 451
 452     /* Decrement tracker usage and free unused structures */
 453
 454     if(initial_stats != NULL)
 455     {
 456         if((--tracker->user_count) == 0)
 457         {
 458             Disable();
 459             Remove((APTR)tracker);
 460             Enable();
 461             FreeMem(tracker, sizeof(struct TypeTracker));
 462         }
 463
 464         Remove((APTR)initial_stats);
 465         FreeMem(initial_stats, sizeof(struct TypeStats));
 466     }
 467     else
 468     {
 469         request->ios2_Req.io_Error = S2ERR_BAD_STATE;
 470         request->ios2_WireError = S2WERR_NOT_TRACKED;
 471     }
 472
 473     /* Return */
 474
 475     return TRUE;
 476 }
 477
 478 static BOOL CmdGetTypeStats(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 479 {
 480     struct PCN32Unit *unit;
 481     struct Opener *opener;
 482     ULONG packet_type;
 483     struct TypeStats *initial_stats, *tracker;
 484     struct Sana2PacketTypeStats *stats;
 485
 486     unit = (APTR)request->ios2_Req.io_Unit;
 487
 488 D(bug("%s: S2CmdGetTypeStats()\n", unit->pcnu_name));
 489
 490     packet_type = request->ios2_PacketType;
 491
 492     /* Get global tracker and initial figures */
 493
 494     tracker = FindTypeStats(LIBBASE, unit, &unit->pcnu_type_trackers, packet_type);
 495     opener = request->ios2_BufferManagement;
 496     initial_stats = FindTypeStats(LIBBASE, unit, &opener->initial_stats, packet_type);
 497
 498     /* Copy and adjust figures */
 499     if(initial_stats != NULL)
 500     {
 501         stats = request->ios2_StatData;
 502         CopyMem(&tracker->stats, stats, sizeof(struct Sana2PacketTypeStats));
 503         stats->PacketsSent -= initial_stats->stats.PacketsSent;
 504         stats->PacketsReceived -= initial_stats->stats.PacketsReceived;
 505         stats->BytesSent -= initial_stats->stats.BytesSent;
 506         stats->BytesReceived -= initial_stats->stats.BytesReceived;
 507         stats->PacketsDropped -= initial_stats->stats.PacketsDropped;
 508     }
 509     else
 510     {
 511         request->ios2_Req.io_Error = S2ERR_BAD_STATE;
 512         request->ios2_WireError = S2WERR_NOT_TRACKED;
 513     }
 514
 515     /* Return */
 516
 517     return TRUE;
 518 }
 519
 520 static BOOL CmdGetGlobalStats(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 521 {
 522     struct PCN32Unit *unit;
 523
 524     /* Update and copy stats */
 525
 526     unit = (APTR)request->ios2_Req.io_Unit;
 527
 528 D(bug("%s: S2CmdGetGlobalStats()\n", unit->pcnu_name));
 529
 530     CopyMem(&unit->pcnu_stats, request->ios2_StatData,
 531         sizeof(struct Sana2DeviceStats));
 532
 533     /* Return */
 534
 535     return TRUE;
 536 }
 537
 538 static BOOL CmdDeviceQuery(LIBBASETYPEPTR LIBBASE, struct IOStdReq *request)
 539 {
 540     struct NSDeviceQueryResult *info;
 541
 542     /* Set structure size twice */
 543
 544     info = request->io_Data;
 545     request->io_Actual = info->SizeAvailable =
 546         offsetof(struct NSDeviceQueryResult, SupportedCommands) + sizeof(APTR);
 547
 548     /* Report device details */
 549
 550     info->DeviceType = NSDEVTYPE_SANA2;
 551     info->DeviceSubType = 0;
 552
 553     info->SupportedCommands = (APTR)supported_commands;
 554
 555     /* Return */
 556
 557     return TRUE;
 558 }
 559
 560 static BOOL CmdOnEvent(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 561 {
 562     struct PCN32Unit *unit;
 563     ULONG events, wanted_events;
 564     BOOL complete = FALSE;
 565
 566     /* Check if we understand the event types */
 567
 568     unit = (APTR)request->ios2_Req.io_Unit;
 569
 570 D(bug("%s: S2CmdOnEvent()\n", unit->pcnu_name));
 571
 572     wanted_events = request->ios2_WireError;
 573     if((wanted_events & ~KNOWN_EVENTS) != 0)
 574     {
 575         request->ios2_Req.io_Error = S2ERR_NOT_SUPPORTED;
 576         events = S2WERR_BAD_EVENT;
 577     }
 578     else
 579     {
 580         if((unit->pcnu_flags & IFF_UP) != 0)
 581             events = S2EVENT_ONLINE;
 582         else
 583             events = S2EVENT_OFFLINE;
 584
 585         events &= wanted_events;
 586     }
 587
 588     /* Reply request if a wanted event has already occurred */
 589
 590     if(events != 0)
 591     {
 592         request->ios2_WireError = events;
 593         complete = TRUE;
 594     }
 595     else
 596     {
 597         request->ios2_Req.io_Flags &= ~IOF_QUICK;
 598         PutMsg(unit->pcnu_request_ports[EVENT_QUEUE], (APTR)request);
 599     }
 600
 601     /* Return */
 602
 603     return complete;
 604 }
 605
 606 static BOOL CmdReadOrphan(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 607 {
 608     struct PCN32Unit *unit;
 609     BYTE error = 0;
 610     ULONG wire_error;
 611     BOOL complete = FALSE;
 612
 613     /* Check request is valid */
 614
 615     unit = (APTR)request->ios2_Req.io_Unit;
 616 D(bug("%s: S2CmdReadOrphan()\n", unit->pcnu_name));
 617
 618     if((unit->pcnu_flags & IFF_UP) == 0)
 619     {
 620         error = S2ERR_OUTOFSERVICE;
 621         wire_error = S2WERR_UNIT_OFFLINE;
 622     }
 623
 624     /* Queue request */
 625
 626     if(error == 0)
 627     {
 628         request->ios2_Req.io_Flags &= ~IOF_QUICK;
 629         PutMsg(unit->pcnu_request_ports[ADOPT_QUEUE], (struct Message *)request);
 630     }
 631     else
 632     {
 633         request->ios2_Req.io_Error = error;
 634         request->ios2_WireError = wire_error;
 635         complete = TRUE;
 636     }
 637
 638     /* Return */
 639
 640     return complete;
 641 }
 642
 643 static BOOL CmdOnline(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 644 {
 645     struct PCN32Unit *unit = (struct PCN32Unit *)request->ios2_Req.io_Unit;
 646     BYTE error = 0;
 647     ULONG wire_error = 0;
 648     UWORD i;
 649
 650 D(bug("%s: S2CmdOnline()\n", unit->pcnu_name));
 651
 652     /* Check request is valid */
 653     if((unit->pcnu_flags & IFF_CONFIGURED) == 0)
 654     {
 655         error = S2ERR_BAD_STATE;
 656         wire_error = S2WERR_NOT_CONFIGURED;
 657     }
 658
 659     /* Clear global and special stats and put adapter back online */
 660
 661     if((error == 0) && ((unit->pcnu_flags & IFF_UP) == 0))
 662     {
 663         unit->pcnu_stats.PacketsReceived = 0;
 664         unit->pcnu_stats.PacketsSent = 0;
 665         unit->pcnu_stats.BadData = 0;
 666         unit->pcnu_stats.Overruns = 0;
 667         unit->pcnu_stats.UnknownTypesReceived = 0;
 668         unit->pcnu_stats.Reconfigurations = 0;
 669
 670         for(i = 0; i < STAT_COUNT; i++)
 671             unit->pcnu_special_stats[i] = 0;
 672
 673         if (unit->start(unit))
 674         {
 675             error = S2ERR_OUTOFSERVICE;
 676             wire_error = S2WERR_GENERIC_ERROR;
 677         }
 678     }
 679
 680     /* Return */
 681
 682     request->ios2_Req.io_Error = error;
 683     request->ios2_WireError = wire_error;
 684     return TRUE;
 685 }
 686
 687 static BOOL CmdOffline(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 688 {
 689     struct PCN32Unit *unit;
 690
 691     /* Put adapter offline */
 692
 693     unit = (APTR)request->ios2_Req.io_Unit;
 694
 695 D(bug("%s: S2CmdOffline()\n", unit->pcnu_name));
 696
 697     if((unit->pcnu_flags & IFF_UP) != 0)
 698         unit->stop(unit);
 699
 700     /* Return */
 701     return TRUE;
 702 }
 703
 704 static BOOL CmdAddMulticastAddresses(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 705 {
 706     struct PCN32Unit *unit;
 707     UBYTE *lower_bound, *upper_bound;
 708
 709     unit = (APTR)request->ios2_Req.io_Unit;
 710
 711 D(bug("%s: S2CmdAddMulticastAddresses()\n", unit->pcnu_name));
 712
 713     lower_bound = request->ios2_SrcAddr;
 714     if(request->ios2_Req.io_Command == S2_ADDMULTICASTADDRESS)
 715         upper_bound = lower_bound;
 716     else
 717         upper_bound = request->ios2_DstAddr;
 718
 719     if(!AddMulticastRange(LIBBASE, unit, lower_bound, upper_bound))
 720     {
 721         request->ios2_Req.io_Error = S2ERR_NO_RESOURCES;
 722         request->ios2_WireError = S2WERR_GENERIC_ERROR;
 723     }
 724
 725     /* Return */
 726
 727     return TRUE;
 728 }
 729
 730 static BOOL CmdDelMulticastAddresses(LIBBASETYPEPTR LIBBASE, struct IOSana2Req *request)
 731 {
 732     struct PCN32Unit *unit;
 733     UBYTE *lower_bound, *upper_bound;
 734
 735     unit = (APTR)request->ios2_Req.io_Unit;
 736
 737 D(bug("%s: S2CmdDelMulticastAddresses()\n", unit->pcnu_name));
 738
 739     lower_bound = request->ios2_SrcAddr;
 740     if(request->ios2_Req.io_Command == S2_DELMULTICASTADDRESS)
 741         upper_bound = lower_bound;
 742     else
 743         upper_bound = request->ios2_DstAddr;
 744
 745     if(!RemMulticastRange(LIBBASE, unit, lower_bound, upper_bound))
 746     {
 747         request->ios2_Req.io_Error = S2ERR_BAD_STATE;
 748         request->ios2_WireError = S2WERR_BAD_MULTICAST;
 749     }
 750
 751     /* Return */
 752
 753     return TRUE;
 754 }