1 /** @file
2   This header file contains all of the PXE type definitions,
3   structure prototypes, global variables and constants that
4   are needed for porting PXE to EFI.
5 
6 Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
7 SPDX-License-Identifier: BSD-2-Clause-Patent
8 
9   @par Revision Reference:
10   32/64-bit PXE specification:
11   alpha-4, 99-Dec-17.
12 
13 **/
14 
15 #ifndef __EFI_PXE_H__
16 #define __EFI_PXE_H__
17 
18 #pragma pack(1)
19 
20 #define PXE_BUSTYPE(a, b, c, d) \
21     ( \
22       (((PXE_UINT32) (d) & 0xFF) << 24) | (((PXE_UINT32) (c) & 0xFF) << 16) | (((PXE_UINT32) (b) & 0xFF) << 8) | \
23         ((PXE_UINT32) (a) & 0xFF) \
24     )
25 
26 ///
27 /// UNDI ROM ID and devive ID signature.
28 ///
29 #define PXE_BUSTYPE_PXE  PXE_BUSTYPE ('!', 'P', 'X', 'E')
30 
31 ///
32 /// BUS ROM ID signatures.
33 ///
34 #define PXE_BUSTYPE_PCI      PXE_BUSTYPE ('P', 'C', 'I', 'R')
35 #define PXE_BUSTYPE_PC_CARD  PXE_BUSTYPE ('P', 'C', 'C', 'R')
36 #define PXE_BUSTYPE_USB      PXE_BUSTYPE ('U', 'S', 'B', 'R')
37 #define PXE_BUSTYPE_1394     PXE_BUSTYPE ('1', '3', '9', '4')
38 
39 #define PXE_SWAP_UINT16(n)  ((((PXE_UINT16) (n) & 0x00FF) << 8) | (((PXE_UINT16) (n) & 0xFF00) >> 8))
40 
41 #define PXE_SWAP_UINT32(n) \
42   ((((PXE_UINT32)(n) & 0x000000FF) << 24) | \
43    (((PXE_UINT32)(n) & 0x0000FF00) << 8)  | \
44    (((PXE_UINT32)(n) & 0x00FF0000) >> 8)  | \
45    (((PXE_UINT32)(n) & 0xFF000000) >> 24))
46 
47 #define PXE_SWAP_UINT64(n) \
48   ((((PXE_UINT64)(n) & 0x00000000000000FFULL) << 56) | \
49    (((PXE_UINT64)(n) & 0x000000000000FF00ULL) << 40) | \
50    (((PXE_UINT64)(n) & 0x0000000000FF0000ULL) << 24) | \
51    (((PXE_UINT64)(n) & 0x00000000FF000000ULL) << 8)  | \
52    (((PXE_UINT64)(n) & 0x000000FF00000000ULL) >> 8)  | \
53    (((PXE_UINT64)(n) & 0x0000FF0000000000ULL) >> 24) | \
54    (((PXE_UINT64)(n) & 0x00FF000000000000ULL) >> 40) | \
55    (((PXE_UINT64)(n) & 0xFF00000000000000ULL) >> 56))
56 
57 #define PXE_CPBSIZE_NOT_USED  0               ///< zero
58 #define PXE_DBSIZE_NOT_USED   0               ///< zero
59 #define PXE_CPBADDR_NOT_USED  (PXE_UINT64) 0  ///< zero
60 #define PXE_DBADDR_NOT_USED   (PXE_UINT64) 0  ///< zero
61 #define PXE_CONST             CONST
62 
63 #define PXE_VOLATILE  volatile
64 
65 typedef VOID    PXE_VOID;
66 typedef UINT8   PXE_UINT8;
67 typedef UINT16  PXE_UINT16;
68 typedef UINT32  PXE_UINT32;
69 typedef UINTN   PXE_UINTN;
70 
71 ///
72 /// Typedef unsigned long PXE_UINT64.
73 ///
74 typedef UINT64 PXE_UINT64;
75 
76 typedef PXE_UINT8 PXE_BOOL;
77 #define PXE_FALSE  0           ///< zero
78 #define PXE_TRUE   (!PXE_FALSE)
79 
80 typedef PXE_UINT16 PXE_OPCODE;
81 
82 ///
83 /// Return UNDI operational state.
84 ///
85 #define PXE_OPCODE_GET_STATE  0x0000
86 
87 ///
88 /// Change UNDI operational state from Stopped to Started.
89 ///
90 #define PXE_OPCODE_START  0x0001
91 
92 ///
93 /// Change UNDI operational state from Started to Stopped.
94 ///
95 #define PXE_OPCODE_STOP  0x0002
96 
97 ///
98 /// Get UNDI initialization information.
99 ///
100 #define PXE_OPCODE_GET_INIT_INFO  0x0003
101 
102 ///
103 /// Get NIC configuration information.
104 ///
105 #define PXE_OPCODE_GET_CONFIG_INFO  0x0004
106 
107 ///
108 /// Changed UNDI operational state from Started to Initialized.
109 ///
110 #define PXE_OPCODE_INITIALIZE  0x0005
111 
112 ///
113 /// Re-initialize the NIC H/W.
114 ///
115 #define PXE_OPCODE_RESET  0x0006
116 
117 ///
118 /// Change the UNDI operational state from Initialized to Started.
119 ///
120 #define PXE_OPCODE_SHUTDOWN  0x0007
121 
122 ///
123 /// Read & change state of external interrupt enables.
124 ///
125 #define PXE_OPCODE_INTERRUPT_ENABLES  0x0008
126 
127 ///
128 /// Read & change state of packet receive filters.
129 ///
130 #define PXE_OPCODE_RECEIVE_FILTERS  0x0009
131 
132 ///
133 /// Read & change station MAC address.
134 ///
135 #define PXE_OPCODE_STATION_ADDRESS  0x000A
136 
137 ///
138 /// Read traffic statistics.
139 ///
140 #define PXE_OPCODE_STATISTICS  0x000B
141 
142 ///
143 /// Convert multicast IP address to multicast MAC address.
144 ///
145 #define PXE_OPCODE_MCAST_IP_TO_MAC  0x000C
146 
147 ///
148 /// Read or change non-volatile storage on the NIC.
149 ///
150 #define PXE_OPCODE_NVDATA  0x000D
151 
152 ///
153 /// Get & clear interrupt status.
154 ///
155 #define PXE_OPCODE_GET_STATUS  0x000E
156 
157 ///
158 /// Fill media header in packet for transmit.
159 ///
160 #define PXE_OPCODE_FILL_HEADER  0x000F
161 
162 ///
163 /// Transmit packet(s).
164 ///
165 #define PXE_OPCODE_TRANSMIT  0x0010
166 
167 ///
168 /// Receive packet.
169 ///
170 #define PXE_OPCODE_RECEIVE  0x0011
171 
172 ///
173 /// Last valid PXE UNDI OpCode number.
174 ///
175 #define PXE_OPCODE_LAST_VALID  0x0011
176 
177 typedef PXE_UINT16 PXE_OPFLAGS;
178 
179 #define PXE_OPFLAGS_NOT_USED  0x0000
180 
181 //
182 // //////////////////////////////////////
183 // UNDI Get State
184 //
185 // No OpFlags
186 
187 ////////////////////////////////////////
188 // UNDI Start
189 //
190 // No OpFlags
191 
192 ////////////////////////////////////////
193 // UNDI Stop
194 //
195 // No OpFlags
196 
197 ////////////////////////////////////////
198 // UNDI Get Init Info
199 //
200 // No Opflags
201 
202 ////////////////////////////////////////
203 // UNDI Get Config Info
204 //
205 // No Opflags
206 
207 ///
208 /// UNDI Initialize
209 ///
210 #define PXE_OPFLAGS_INITIALIZE_CABLE_DETECT_MASK    0x0001
211 #define PXE_OPFLAGS_INITIALIZE_DETECT_CABLE         0x0000
212 #define PXE_OPFLAGS_INITIALIZE_DO_NOT_DETECT_CABLE  0x0001
213 
214 ///
215 ///
216 /// UNDI Reset
217 ///
218 #define PXE_OPFLAGS_RESET_DISABLE_INTERRUPTS  0x0001
219 #define PXE_OPFLAGS_RESET_DISABLE_FILTERS     0x0002
220 
221 ///
222 /// UNDI Shutdown.
223 ///
224 /// No OpFlags.
225 
226 ///
227 /// UNDI Interrupt Enables.
228 ///
229 ///
230 /// Select whether to enable or disable external interrupt signals.
231 /// Setting both enable and disable will return PXE_STATCODE_INVALID_OPFLAGS.
232 ///
233 #define PXE_OPFLAGS_INTERRUPT_OPMASK   0xC000
234 #define PXE_OPFLAGS_INTERRUPT_ENABLE   0x8000
235 #define PXE_OPFLAGS_INTERRUPT_DISABLE  0x4000
236 #define PXE_OPFLAGS_INTERRUPT_READ     0x0000
237 
238 ///
239 /// Enable receive interrupts.  An external interrupt will be generated
240 /// after a complete non-error packet has been received.
241 ///
242 #define PXE_OPFLAGS_INTERRUPT_RECEIVE  0x0001
243 
244 ///
245 /// Enable transmit interrupts.  An external interrupt will be generated
246 /// after a complete non-error packet has been transmitted.
247 ///
248 #define PXE_OPFLAGS_INTERRUPT_TRANSMIT  0x0002
249 
250 ///
251 /// Enable command interrupts.  An external interrupt will be generated
252 /// when command execution stops.
253 ///
254 #define PXE_OPFLAGS_INTERRUPT_COMMAND  0x0004
255 
256 ///
257 /// Generate software interrupt.  Setting this bit generates an external
258 /// interrupt, if it is supported by the hardware.
259 ///
260 #define PXE_OPFLAGS_INTERRUPT_SOFTWARE  0x0008
261 
262 ///
263 /// UNDI Receive Filters.
264 ///
265 ///
266 /// Select whether to enable or disable receive filters.
267 /// Setting both enable and disable will return PXE_STATCODE_INVALID_OPCODE.
268 ///
269 #define PXE_OPFLAGS_RECEIVE_FILTER_OPMASK   0xC000
270 #define PXE_OPFLAGS_RECEIVE_FILTER_ENABLE   0x8000
271 #define PXE_OPFLAGS_RECEIVE_FILTER_DISABLE  0x4000
272 #define PXE_OPFLAGS_RECEIVE_FILTER_READ     0x0000
273 
274 ///
275 /// To reset the contents of the multicast MAC address filter list,
276 /// set this OpFlag:
277 ///
278 #define PXE_OPFLAGS_RECEIVE_FILTER_RESET_MCAST_LIST  0x2000
279 
280 ///
281 /// Enable unicast packet receiving.  Packets sent to the current station
282 /// MAC address will be received.
283 ///
284 #define PXE_OPFLAGS_RECEIVE_FILTER_UNICAST  0x0001
285 
286 ///
287 /// Enable broadcast packet receiving.  Packets sent to the broadcast
288 /// MAC address will be received.
289 ///
290 #define PXE_OPFLAGS_RECEIVE_FILTER_BROADCAST  0x0002
291 
292 ///
293 /// Enable filtered multicast packet receiving.  Packets sent to any
294 /// of the multicast MAC addresses in the multicast MAC address filter
295 /// list will be received.  If the filter list is empty, no multicast
296 ///
297 #define PXE_OPFLAGS_RECEIVE_FILTER_FILTERED_MULTICAST  0x0004
298 
299 ///
300 /// Enable promiscuous packet receiving.  All packets will be received.
301 ///
302 #define PXE_OPFLAGS_RECEIVE_FILTER_PROMISCUOUS  0x0008
303 
304 ///
305 /// Enable promiscuous multicast packet receiving.  All multicast
306 /// packets will be received.
307 ///
308 #define PXE_OPFLAGS_RECEIVE_FILTER_ALL_MULTICAST  0x0010
309 
310 ///
311 /// UNDI Station Address.
312 ///
313 #define PXE_OPFLAGS_STATION_ADDRESS_READ   0x0000
314 #define PXE_OPFLAGS_STATION_ADDRESS_WRITE  0x0000
315 #define PXE_OPFLAGS_STATION_ADDRESS_RESET  0x0001
316 
317 ///
318 /// UNDI Statistics.
319 ///
320 #define PXE_OPFLAGS_STATISTICS_READ   0x0000
321 #define PXE_OPFLAGS_STATISTICS_RESET  0x0001
322 
323 ///
324 /// UNDI MCast IP to MAC.
325 ///
326 ///
327 /// Identify the type of IP address in the CPB.
328 ///
329 #define PXE_OPFLAGS_MCAST_IP_TO_MAC_OPMASK  0x0003
330 #define PXE_OPFLAGS_MCAST_IPV4_TO_MAC       0x0000
331 #define PXE_OPFLAGS_MCAST_IPV6_TO_MAC       0x0001
332 
333 ///
334 /// UNDI NvData.
335 ///
336 ///
337 /// Select the type of non-volatile data operation.
338 ///
339 #define PXE_OPFLAGS_NVDATA_OPMASK  0x0001
340 #define PXE_OPFLAGS_NVDATA_READ    0x0000
341 #define PXE_OPFLAGS_NVDATA_WRITE   0x0001
342 
343 ///
344 /// UNDI Get Status.
345 ///
346 ///
347 /// Return current interrupt status.  This will also clear any interrupts
348 /// that are currently set.  This can be used in a polling routine.  The
349 /// interrupt flags are still set and cleared even when the interrupts
350 /// are disabled.
351 ///
352 #define PXE_OPFLAGS_GET_INTERRUPT_STATUS  0x0001
353 
354 ///
355 /// Return list of transmitted buffers for recycling.  Transmit buffers
356 /// must not be changed or unallocated until they have recycled.  After
357 /// issuing a transmit command, wait for a transmit complete interrupt.
358 /// When a transmit complete interrupt is received, read the transmitted
359 /// buffers.  Do not plan on getting one buffer per interrupt.  Some
360 /// NICs and UNDIs may transmit multiple buffers per interrupt.
361 ///
362 #define PXE_OPFLAGS_GET_TRANSMITTED_BUFFERS  0x0002
363 
364 ///
365 /// Return current media status.
366 ///
367 #define PXE_OPFLAGS_GET_MEDIA_STATUS  0x0004
368 
369 ///
370 /// UNDI Fill Header.
371 ///
372 #define PXE_OPFLAGS_FILL_HEADER_OPMASK      0x0001
373 #define PXE_OPFLAGS_FILL_HEADER_FRAGMENTED  0x0001
374 #define PXE_OPFLAGS_FILL_HEADER_WHOLE       0x0000
375 
376 ///
377 /// UNDI Transmit.
378 ///
379 ///
380 /// S/W UNDI only.  Return after the packet has been transmitted.  A
381 /// transmit complete interrupt will still be generated and the transmit
382 /// buffer will have to be recycled.
383 ///
384 #define PXE_OPFLAGS_SWUNDI_TRANSMIT_OPMASK  0x0001
385 #define PXE_OPFLAGS_TRANSMIT_BLOCK          0x0001
386 #define PXE_OPFLAGS_TRANSMIT_DONT_BLOCK     0x0000
387 
388 #define PXE_OPFLAGS_TRANSMIT_OPMASK      0x0002
389 #define PXE_OPFLAGS_TRANSMIT_FRAGMENTED  0x0002
390 #define PXE_OPFLAGS_TRANSMIT_WHOLE       0x0000
391 
392 ///
393 /// UNDI Receive.
394 ///
395 /// No OpFlags.
396 ///
397 
398 ///
399 /// PXE STATFLAGS.
400 ///
401 typedef PXE_UINT16 PXE_STATFLAGS;
402 
403 #define PXE_STATFLAGS_INITIALIZE  0x0000
404 
405 ///
406 /// Common StatFlags that can be returned by all commands.
407 ///
408 ///
409 /// The COMMAND_COMPLETE and COMMAND_FAILED status flags must be
410 /// implemented by all UNDIs.  COMMAND_QUEUED is only needed by UNDIs
411 /// that support command queuing.
412 ///
413 #define PXE_STATFLAGS_STATUS_MASK       0xC000
414 #define PXE_STATFLAGS_COMMAND_COMPLETE  0xC000
415 #define PXE_STATFLAGS_COMMAND_FAILED    0x8000
416 #define PXE_STATFLAGS_COMMAND_QUEUED    0x4000
417 
418 ///
419 /// UNDI Get State.
420 ///
421 #define PXE_STATFLAGS_GET_STATE_MASK         0x0003
422 #define PXE_STATFLAGS_GET_STATE_INITIALIZED  0x0002
423 #define PXE_STATFLAGS_GET_STATE_STARTED      0x0001
424 #define PXE_STATFLAGS_GET_STATE_STOPPED      0x0000
425 
426 ///
427 /// UNDI Start.
428 ///
429 /// No additional StatFlags.
430 ///
431 
432 ///
433 /// UNDI Get Init Info.
434 ///
435 #define PXE_STATFLAGS_CABLE_DETECT_MASK           0x0001
436 #define PXE_STATFLAGS_CABLE_DETECT_NOT_SUPPORTED  0x0000
437 #define PXE_STATFLAGS_CABLE_DETECT_SUPPORTED      0x0001
438 
439 #define PXE_STATFLAGS_GET_STATUS_NO_MEDIA_MASK           0x0002
440 #define PXE_STATFLAGS_GET_STATUS_NO_MEDIA_NOT_SUPPORTED  0x0000
441 #define PXE_STATFLAGS_GET_STATUS_NO_MEDIA_SUPPORTED      0x0002
442 
443 ///
444 /// UNDI Initialize.
445 ///
446 #define PXE_STATFLAGS_INITIALIZED_NO_MEDIA  0x0001
447 
448 ///
449 /// UNDI Reset.
450 ///
451 #define PXE_STATFLAGS_RESET_NO_MEDIA  0x0001
452 
453 ///
454 /// UNDI Shutdown.
455 ///
456 /// No additional StatFlags.
457 
458 ///
459 /// UNDI Interrupt Enables.
460 ///
461 ///
462 /// If set, receive interrupts are enabled.
463 ///
464 #define PXE_STATFLAGS_INTERRUPT_RECEIVE  0x0001
465 
466 ///
467 /// If set, transmit interrupts are enabled.
468 ///
469 #define PXE_STATFLAGS_INTERRUPT_TRANSMIT  0x0002
470 
471 ///
472 /// If set, command interrupts are enabled.
473 ///
474 #define PXE_STATFLAGS_INTERRUPT_COMMAND  0x0004
475 
476 ///
477 /// UNDI Receive Filters.
478 ///
479 
480 ///
481 /// If set, unicast packets will be received.
482 ///
483 #define PXE_STATFLAGS_RECEIVE_FILTER_UNICAST  0x0001
484 
485 ///
486 /// If set, broadcast packets will be received.
487 ///
488 #define PXE_STATFLAGS_RECEIVE_FILTER_BROADCAST  0x0002
489 
490 ///
491 /// If set, multicast packets that match up with the multicast address
492 /// filter list will be received.
493 ///
494 #define PXE_STATFLAGS_RECEIVE_FILTER_FILTERED_MULTICAST  0x0004
495 
496 ///
497 /// If set, all packets will be received.
498 ///
499 #define PXE_STATFLAGS_RECEIVE_FILTER_PROMISCUOUS  0x0008
500 
501 ///
502 /// If set, all multicast packets will be received.
503 ///
504 #define PXE_STATFLAGS_RECEIVE_FILTER_ALL_MULTICAST  0x0010
505 
506 ///
507 /// UNDI Station Address.
508 ///
509 /// No additional StatFlags.
510 ///
511 
512 ///
513 /// UNDI Statistics.
514 ///
515 /// No additional StatFlags.
516 ///
517 
518 ///
519 //// UNDI MCast IP to MAC.
520 ////
521 //// No additional StatFlags.
522 
523 ///
524 /// UNDI NvData.
525 ///
526 /// No additional StatFlags.
527 ///
528 
529 ///
530 /// UNDI Get Status.
531 ///
532 
533 ///
534 /// Use to determine if an interrupt has occurred.
535 ///
536 #define PXE_STATFLAGS_GET_STATUS_INTERRUPT_MASK  0x000F
537 #define PXE_STATFLAGS_GET_STATUS_NO_INTERRUPTS   0x0000
538 
539 ///
540 /// If set, at least one receive interrupt occurred.
541 ///
542 #define PXE_STATFLAGS_GET_STATUS_RECEIVE  0x0001
543 
544 ///
545 /// If set, at least one transmit interrupt occurred.
546 ///
547 #define PXE_STATFLAGS_GET_STATUS_TRANSMIT  0x0002
548 
549 ///
550 /// If set, at least one command interrupt occurred.
551 ///
552 #define PXE_STATFLAGS_GET_STATUS_COMMAND  0x0004
553 
554 ///
555 /// If set, at least one software interrupt occurred.
556 ///
557 #define PXE_STATFLAGS_GET_STATUS_SOFTWARE  0x0008
558 
559 ///
560 /// This flag is set if the transmitted buffer queue is empty.  This flag
561 /// will be set if all transmitted buffer addresses get written into the DB.
562 ///
563 #define PXE_STATFLAGS_GET_STATUS_TXBUF_QUEUE_EMPTY  0x0010
564 
565 ///
566 /// This flag is set if no transmitted buffer addresses were written
567 /// into the DB.  (This could be because DBsize was too small.)
568 ///
569 #define PXE_STATFLAGS_GET_STATUS_NO_TXBUFS_WRITTEN  0x0020
570 
571 ///
572 /// This flag is set if there is no media detected.
573 ///
574 #define PXE_STATFLAGS_GET_STATUS_NO_MEDIA  0x0040
575 
576 ///
577 /// UNDI Fill Header.
578 ///
579 /// No additional StatFlags.
580 ///
581 
582 ///
583 /// UNDI Transmit.
584 ///
585 /// No additional StatFlags.
586 
587 ///
588 /// UNDI Receive
589 /// .
590 
591 ///
592 /// No additional StatFlags.
593 ///
594 typedef PXE_UINT16 PXE_STATCODE;
595 
596 #define PXE_STATCODE_INITIALIZE  0x0000
597 
598 ///
599 /// Common StatCodes returned by all UNDI commands, UNDI protocol functions
600 /// and BC protocol functions.
601 ///
602 #define PXE_STATCODE_SUCCESS  0x0000
603 
604 #define PXE_STATCODE_INVALID_CDB          0x0001
605 #define PXE_STATCODE_INVALID_CPB          0x0002
606 #define PXE_STATCODE_BUSY                 0x0003
607 #define PXE_STATCODE_QUEUE_FULL           0x0004
608 #define PXE_STATCODE_ALREADY_STARTED      0x0005
609 #define PXE_STATCODE_NOT_STARTED          0x0006
610 #define PXE_STATCODE_NOT_SHUTDOWN         0x0007
611 #define PXE_STATCODE_ALREADY_INITIALIZED  0x0008
612 #define PXE_STATCODE_NOT_INITIALIZED      0x0009
613 #define PXE_STATCODE_DEVICE_FAILURE       0x000A
614 #define PXE_STATCODE_NVDATA_FAILURE       0x000B
615 #define PXE_STATCODE_UNSUPPORTED          0x000C
616 #define PXE_STATCODE_BUFFER_FULL          0x000D
617 #define PXE_STATCODE_INVALID_PARAMETER    0x000E
618 #define PXE_STATCODE_INVALID_UNDI         0x000F
619 #define PXE_STATCODE_IPV4_NOT_SUPPORTED   0x0010
620 #define PXE_STATCODE_IPV6_NOT_SUPPORTED   0x0011
621 #define PXE_STATCODE_NOT_ENOUGH_MEMORY    0x0012
622 #define PXE_STATCODE_NO_DATA              0x0013
623 
624 typedef PXE_UINT16 PXE_IFNUM;
625 
626 ///
627 /// This interface number must be passed to the S/W UNDI Start command.
628 ///
629 #define PXE_IFNUM_START  0x0000
630 
631 ///
632 /// This interface number is returned by the S/W UNDI Get State and
633 /// Start commands if information in the CDB, CPB or DB is invalid.
634 ///
635 #define PXE_IFNUM_INVALID  0x0000
636 
637 typedef PXE_UINT16 PXE_CONTROL;
638 
639 ///
640 /// Setting this flag directs the UNDI to queue this command for later
641 /// execution if the UNDI is busy and it supports command queuing.
642 /// If queuing is not supported, a PXE_STATCODE_INVALID_CONTROL error
643 /// is returned.  If the queue is full, a PXE_STATCODE_CDB_QUEUE_FULL
644 /// error is returned.
645 ///
646 #define PXE_CONTROL_QUEUE_IF_BUSY  0x0002
647 
648 ///
649 /// These two bit values are used to determine if there are more UNDI
650 /// CDB structures following this one.  If the link bit is set, there
651 /// must be a CDB structure following this one.  Execution will start
652 /// on the next CDB structure as soon as this one completes successfully.
653 /// If an error is generated by this command, execution will stop.
654 ///
655 #define PXE_CONTROL_LINK              0x0001
656 #define PXE_CONTROL_LAST_CDB_IN_LIST  0x0000
657 
658 typedef PXE_UINT8 PXE_FRAME_TYPE;
659 
660 #define PXE_FRAME_TYPE_NONE                   0x00
661 #define PXE_FRAME_TYPE_UNICAST                0x01
662 #define PXE_FRAME_TYPE_BROADCAST              0x02
663 #define PXE_FRAME_TYPE_FILTERED_MULTICAST     0x03
664 #define PXE_FRAME_TYPE_PROMISCUOUS            0x04
665 #define PXE_FRAME_TYPE_PROMISCUOUS_MULTICAST  0x05
666 
667 #define PXE_FRAME_TYPE_MULTICAST  PXE_FRAME_TYPE_FILTERED_MULTICAST
668 
669 typedef PXE_UINT32 PXE_IPV4;
670 
671 typedef PXE_UINT32 PXE_IPV6[4];
672 #define PXE_MAC_LENGTH  32
673 
674 typedef PXE_UINT8 PXE_MAC_ADDR[PXE_MAC_LENGTH];
675 
676 typedef PXE_UINT8 PXE_IFTYPE;
677 typedef UINT16    PXE_MEDIA_PROTOCOL;
678 
679 ///
680 /// This information is from the ARP section of RFC 1700.
681 ///
682 ///     1 Ethernet (10Mb)                                    [JBP]
683 ///     2 Experimental Ethernet (3Mb)                        [JBP]
684 ///     3 Amateur Radio AX.25                                [PXK]
685 ///     4 Proteon ProNET Token Ring                          [JBP]
686 ///     5 Chaos                                              [GXP]
687 ///     6 IEEE 802 Networks                                  [JBP]
688 ///     7 ARCNET                                             [JBP]
689 ///     8 Hyperchannel                                       [JBP]
690 ///     9 Lanstar                                             [TU]
691 ///    10 Autonet Short Address                             [MXB1]
692 ///    11 LocalTalk                                         [JKR1]
693 ///    12 LocalNet (IBM* PCNet or SYTEK* LocalNET)           [JXM]
694 ///    13 Ultra link                                        [RXD2]
695 ///    14 SMDS                                              [GXC1]
696 ///    15 Frame Relay                                        [AGM]
697 ///    16 Asynchronous Transmission Mode (ATM)              [JXB2]
698 ///    17 HDLC                                               [JBP]
699 ///    18 Fibre Channel                            [Yakov Rekhter]
700 ///    19 Asynchronous Transmission Mode (ATM)      [Mark Laubach]
701 ///    20 Serial Line                                        [JBP]
702 ///    21 Asynchronous Transmission Mode (ATM)              [MXB1]
703 ///
704 /// * Other names and brands may be claimed as the property of others.
705 ///
706 #define PXE_IFTYPE_ETHERNET       0x01
707 #define PXE_IFTYPE_TOKENRING      0x04
708 #define PXE_IFTYPE_FIBRE_CHANNEL  0x12
709 
710 typedef struct s_pxe_hw_undi {
711   PXE_UINT32    Signature;      ///< PXE_ROMID_SIGNATURE.
712   PXE_UINT8     Len;            ///< sizeof(PXE_HW_UNDI).
713   PXE_UINT8     Fudge;          ///< makes 8-bit cksum equal zero.
714   PXE_UINT8     Rev;            ///< PXE_ROMID_REV.
715   PXE_UINT8     IFcnt;          ///< physical connector count lower byte.
716   PXE_UINT8     MajorVer;       ///< PXE_ROMID_MAJORVER.
717   PXE_UINT8     MinorVer;       ///< PXE_ROMID_MINORVER.
718   PXE_UINT8     IFcntExt;       ///< physical connector count upper byte.
719   PXE_UINT8     reserved;       ///< zero, not used.
720   PXE_UINT32    Implementation; ///< implementation flags.
721   ///< reserved             ///< vendor use.
722   ///< UINT32 Status;       ///< status port.
723   ///< UINT32 Command;      ///< command port.
724   ///< UINT64 CDBaddr;      ///< CDB address port.
725   ///<
726 } PXE_HW_UNDI;
727 
728 ///
729 /// Status port bit definitions.
730 ///
731 
732 ///
733 /// UNDI operation state.
734 ///
735 #define PXE_HWSTAT_STATE_MASK   0xC0000000
736 #define PXE_HWSTAT_BUSY         0xC0000000
737 #define PXE_HWSTAT_INITIALIZED  0x80000000
738 #define PXE_HWSTAT_STARTED      0x40000000
739 #define PXE_HWSTAT_STOPPED      0x00000000
740 
741 ///
742 /// If set, last command failed.
743 ///
744 #define PXE_HWSTAT_COMMAND_FAILED  0x20000000
745 
746 ///
747 /// If set, identifies enabled receive filters.
748 ///
749 #define PXE_HWSTAT_PROMISCUOUS_MULTICAST_RX_ENABLED  0x00001000
750 #define PXE_HWSTAT_PROMISCUOUS_RX_ENABLED            0x00000800
751 #define PXE_HWSTAT_BROADCAST_RX_ENABLED              0x00000400
752 #define PXE_HWSTAT_MULTICAST_RX_ENABLED              0x00000200
753 #define PXE_HWSTAT_UNICAST_RX_ENABLED                0x00000100
754 
755 ///
756 /// If set, identifies enabled external interrupts.
757 ///
758 #define PXE_HWSTAT_SOFTWARE_INT_ENABLED      0x00000080
759 #define PXE_HWSTAT_TX_COMPLETE_INT_ENABLED   0x00000040
760 #define PXE_HWSTAT_PACKET_RX_INT_ENABLED     0x00000020
761 #define PXE_HWSTAT_CMD_COMPLETE_INT_ENABLED  0x00000010
762 
763 ///
764 /// If set, identifies pending interrupts.
765 ///
766 #define PXE_HWSTAT_SOFTWARE_INT_PENDING      0x00000008
767 #define PXE_HWSTAT_TX_COMPLETE_INT_PENDING   0x00000004
768 #define PXE_HWSTAT_PACKET_RX_INT_PENDING     0x00000002
769 #define PXE_HWSTAT_CMD_COMPLETE_INT_PENDING  0x00000001
770 
771 ///
772 /// Command port definitions.
773 ///
774 
775 ///
776 /// If set, CDB identified in CDBaddr port is given to UNDI.
777 /// If not set, other bits in this word will be processed.
778 ///
779 #define PXE_HWCMD_ISSUE_COMMAND   0x80000000
780 #define PXE_HWCMD_INTS_AND_FILTS  0x00000000
781 
782 ///
783 /// Use these to enable/disable receive filters.
784 ///
785 #define PXE_HWCMD_PROMISCUOUS_MULTICAST_RX_ENABLE  0x00001000
786 #define PXE_HWCMD_PROMISCUOUS_RX_ENABLE            0x00000800
787 #define PXE_HWCMD_BROADCAST_RX_ENABLE              0x00000400
788 #define PXE_HWCMD_MULTICAST_RX_ENABLE              0x00000200
789 #define PXE_HWCMD_UNICAST_RX_ENABLE                0x00000100
790 
791 ///
792 /// Use these to enable/disable external interrupts.
793 ///
794 #define PXE_HWCMD_SOFTWARE_INT_ENABLE      0x00000080
795 #define PXE_HWCMD_TX_COMPLETE_INT_ENABLE   0x00000040
796 #define PXE_HWCMD_PACKET_RX_INT_ENABLE     0x00000020
797 #define PXE_HWCMD_CMD_COMPLETE_INT_ENABLE  0x00000010
798 
799 ///
800 /// Use these to clear pending external interrupts.
801 ///
802 #define PXE_HWCMD_CLEAR_SOFTWARE_INT      0x00000008
803 #define PXE_HWCMD_CLEAR_TX_COMPLETE_INT   0x00000004
804 #define PXE_HWCMD_CLEAR_PACKET_RX_INT     0x00000002
805 #define PXE_HWCMD_CLEAR_CMD_COMPLETE_INT  0x00000001
806 
807 typedef struct s_pxe_sw_undi {
808   PXE_UINT32    Signature;      ///< PXE_ROMID_SIGNATURE.
809   PXE_UINT8     Len;            ///< sizeof(PXE_SW_UNDI).
810   PXE_UINT8     Fudge;          ///< makes 8-bit cksum zero.
811   PXE_UINT8     Rev;            ///< PXE_ROMID_REV.
812   PXE_UINT8     IFcnt;          ///< physical connector count lower byte.
813   PXE_UINT8     MajorVer;       ///< PXE_ROMID_MAJORVER.
814   PXE_UINT8     MinorVer;       ///< PXE_ROMID_MINORVER.
815   PXE_UINT8     IFcntExt;       ///< physical connector count upper byte.
816   PXE_UINT8     reserved1;      ///< zero, not used.
817   PXE_UINT32    Implementation; ///< Implementation flags.
818   PXE_UINT64    EntryPoint;     ///< API entry point.
819   PXE_UINT8     reserved2[3];   ///< zero, not used.
820   PXE_UINT8     BusCnt;         ///< number of bustypes supported.
821   PXE_UINT32    BusType[1];     ///< list of supported bustypes.
822 } PXE_SW_UNDI;
823 
824 typedef union u_pxe_undi {
825   PXE_HW_UNDI    hw;
826   PXE_SW_UNDI    sw;
827 } PXE_UNDI;
828 
829 ///
830 /// Signature of !PXE structure.
831 ///
832 #define PXE_ROMID_SIGNATURE  PXE_BUSTYPE ('!', 'P', 'X', 'E')
833 
834 ///
835 /// !PXE structure format revision
836 /// .
837 #define PXE_ROMID_REV  0x02
838 
839 ///
840 /// UNDI command interface revision.  These are the values that get sent
841 /// in option 94 (Client Network Interface Identifier) in the DHCP Discover
842 /// and PXE Boot Server Request packets.
843 ///
844 #define PXE_ROMID_MAJORVER  0x03
845 #define PXE_ROMID_MINORVER  0x01
846 
847 ///
848 /// Implementation flags.
849 ///
850 #define PXE_ROMID_IMP_HW_UNDI                             0x80000000
851 #define PXE_ROMID_IMP_SW_VIRT_ADDR                        0x40000000
852 #define PXE_ROMID_IMP_64BIT_DEVICE                        0x00010000
853 #define PXE_ROMID_IMP_FRAG_SUPPORTED                      0x00008000
854 #define PXE_ROMID_IMP_CMD_LINK_SUPPORTED                  0x00004000
855 #define PXE_ROMID_IMP_CMD_QUEUE_SUPPORTED                 0x00002000
856 #define PXE_ROMID_IMP_MULTI_FRAME_SUPPORTED               0x00001000
857 #define PXE_ROMID_IMP_NVDATA_SUPPORT_MASK                 0x00000C00
858 #define PXE_ROMID_IMP_NVDATA_BULK_WRITABLE                0x00000C00
859 #define PXE_ROMID_IMP_NVDATA_SPARSE_WRITABLE              0x00000800
860 #define PXE_ROMID_IMP_NVDATA_READ_ONLY                    0x00000400
861 #define PXE_ROMID_IMP_NVDATA_NOT_AVAILABLE                0x00000000
862 #define PXE_ROMID_IMP_STATISTICS_SUPPORTED                0x00000200
863 #define PXE_ROMID_IMP_STATION_ADDR_SETTABLE               0x00000100
864 #define PXE_ROMID_IMP_PROMISCUOUS_MULTICAST_RX_SUPPORTED  0x00000080
865 #define PXE_ROMID_IMP_PROMISCUOUS_RX_SUPPORTED            0x00000040
866 #define PXE_ROMID_IMP_BROADCAST_RX_SUPPORTED              0x00000020
867 #define PXE_ROMID_IMP_FILTERED_MULTICAST_RX_SUPPORTED     0x00000010
868 #define PXE_ROMID_IMP_SOFTWARE_INT_SUPPORTED              0x00000008
869 #define PXE_ROMID_IMP_TX_COMPLETE_INT_SUPPORTED           0x00000004
870 #define PXE_ROMID_IMP_PACKET_RX_INT_SUPPORTED             0x00000002
871 #define PXE_ROMID_IMP_CMD_COMPLETE_INT_SUPPORTED          0x00000001
872 
873 typedef struct s_pxe_cdb {
874   PXE_OPCODE       OpCode;
875   PXE_OPFLAGS      OpFlags;
876   PXE_UINT16       CPBsize;
877   PXE_UINT16       DBsize;
878   PXE_UINT64       CPBaddr;
879   PXE_UINT64       DBaddr;
880   PXE_STATCODE     StatCode;
881   PXE_STATFLAGS    StatFlags;
882   PXE_UINT16       IFnum;
883   PXE_CONTROL      Control;
884 } PXE_CDB;
885 
886 typedef union u_pxe_ip_addr {
887   PXE_IPV6    IPv6;
888   PXE_IPV4    IPv4;
889 } PXE_IP_ADDR;
890 
891 typedef union pxe_device {
892   ///
893   /// PCI and PC Card NICs are both identified using bus, device
894   /// and function numbers.  For PC Card, this may require PC
895   /// Card services to be loaded in the BIOS or preboot
896   /// environment.
897   ///
898   struct {
899     ///
900     /// See S/W UNDI ROMID structure definition for PCI and
901     /// PCC BusType definitions.
902     ///
903     PXE_UINT32    BusType;
904 
905     ///
906     /// Bus, device & function numbers that locate this device.
907     ///
908     PXE_UINT16    Bus;
909     PXE_UINT8     Device;
910     PXE_UINT8     Function;
911   } PCI, PCC;
912 } PXE_DEVICE;
913 
914 ///
915 /// cpb and db definitions
916 ///
917 #define MAX_PCI_CONFIG_LEN     64  ///< # of dwords.
918 #define MAX_EEPROM_LEN         128 ///< # of dwords.
919 #define MAX_XMIT_BUFFERS       32  ///< recycling Q length for xmit_done.
920 #define MAX_MCAST_ADDRESS_CNT  8
921 
922 typedef struct s_pxe_cpb_start_30 {
923   ///
924   /// PXE_VOID Delay(UINTN microseconds);
925   ///
926   /// UNDI will never request a delay smaller than 10 microseconds
927   /// and will always request delays in increments of 10 microseconds.
928   /// The Delay() CallBack routine must delay between n and n + 10
929   /// microseconds before returning control to the UNDI.
930   ///
931   /// This field cannot be set to zero.
932   ///
933   UINT64    Delay;
934 
935   ///
936   /// PXE_VOID Block(UINT32 enable);
937   ///
938   /// UNDI may need to block multi-threaded/multi-processor access to
939   /// critical code sections when programming or accessing the network
940   /// device.  To this end, a blocking service is needed by the UNDI.
941   /// When UNDI needs a block, it will call Block() passing a non-zero
942   /// value.  When UNDI no longer needs a block, it will call Block()
943   /// with a zero value.  When called, if the Block() is already enabled,
944   /// do not return control to the UNDI until the previous Block() is
945   /// disabled.
946   ///
947   /// This field cannot be set to zero.
948   ///
949   UINT64    Block;
950 
951   ///
952   /// PXE_VOID Virt2Phys(UINT64 virtual, UINT64 physical_ptr);
953   ///
954   /// UNDI will pass the virtual address of a buffer and the virtual
955   /// address of a 64-bit physical buffer.  Convert the virtual address
956   /// to a physical address and write the result to the physical address
957   /// buffer.  If virtual and physical addresses are the same, just
958   /// copy the virtual address to the physical address buffer.
959   ///
960   /// This field can be set to zero if virtual and physical addresses
961   /// are equal.
962   ///
963   UINT64    Virt2Phys;
964   ///
965   /// PXE_VOID Mem_IO(UINT8 read_write, UINT8 len, UINT64 port,
966   ///              UINT64 buf_addr);
967   ///
968   /// UNDI will read or write the device io space using this call back
969   /// function. It passes the number of bytes as the len parameter and it
970   /// will be either 1,2,4 or 8.
971   ///
972   /// This field can not be set to zero.
973   ///
974   UINT64    Mem_IO;
975 } PXE_CPB_START_30;
976 
977 typedef struct s_pxe_cpb_start_31 {
978   ///
979   /// PXE_VOID Delay(UINT64 UnqId, UINTN microseconds);
980   ///
981   /// UNDI will never request a delay smaller than 10 microseconds
982   /// and will always request delays in increments of 10 microseconds.
983   /// The Delay() CallBack routine must delay between n and n + 10
984   /// microseconds before returning control to the UNDI.
985   ///
986   /// This field cannot be set to zero.
987   ///
988   UINT64    Delay;
989 
990   ///
991   /// PXE_VOID Block(UINT64 unq_id, UINT32 enable);
992   ///
993   /// UNDI may need to block multi-threaded/multi-processor access to
994   /// critical code sections when programming or accessing the network
995   /// device.  To this end, a blocking service is needed by the UNDI.
996   /// When UNDI needs a block, it will call Block() passing a non-zero
997   /// value.  When UNDI no longer needs a block, it will call Block()
998   /// with a zero value.  When called, if the Block() is already enabled,
999   /// do not return control to the UNDI until the previous Block() is
1000   /// disabled.
1001   ///
1002   /// This field cannot be set to zero.
1003   ///
1004   UINT64    Block;
1005 
1006   ///
1007   /// PXE_VOID Virt2Phys(UINT64 UnqId, UINT64 virtual, UINT64 physical_ptr);
1008   ///
1009   /// UNDI will pass the virtual address of a buffer and the virtual
1010   /// address of a 64-bit physical buffer.  Convert the virtual address
1011   /// to a physical address and write the result to the physical address
1012   /// buffer.  If virtual and physical addresses are the same, just
1013   /// copy the virtual address to the physical address buffer.
1014   ///
1015   /// This field can be set to zero if virtual and physical addresses
1016   /// are equal.
1017   ///
1018   UINT64    Virt2Phys;
1019   ///
1020   /// PXE_VOID Mem_IO(UINT64 UnqId, UINT8 read_write, UINT8 len, UINT64 port,
1021   ///              UINT64 buf_addr);
1022   ///
1023   /// UNDI will read or write the device io space using this call back
1024   /// function. It passes the number of bytes as the len parameter and it
1025   /// will be either 1,2,4 or 8.
1026   ///
1027   /// This field can not be set to zero.
1028   ///
1029   UINT64    Mem_IO;
1030   ///
1031   /// PXE_VOID Map_Mem(UINT64 unq_id, UINT64 virtual_addr, UINT32 size,
1032   ///                 UINT32 Direction, UINT64 mapped_addr);
1033   ///
1034   /// UNDI will pass the virtual address of a buffer, direction of the data
1035   /// flow from/to the mapped buffer (the constants are defined below)
1036   /// and a place holder (pointer) for the mapped address.
1037   /// This call will Map the given address to a physical DMA address and write
1038   /// the result to the mapped_addr pointer.  If there is no need to
1039   /// map the given address to a lower address (i.e. the given address is
1040   /// associated with a physical address that is already compatible to be
1041   /// used with the DMA, it converts the given virtual address to it's
1042   /// physical address and write that in the mapped address pointer.
1043   ///
1044   /// This field can be set to zero if there is no mapping service available.
1045   ///
1046   UINT64    Map_Mem;
1047 
1048   ///
1049   /// PXE_VOID UnMap_Mem(UINT64 unq_id, UINT64 virtual_addr, UINT32 size,
1050   ///            UINT32 Direction, UINT64 mapped_addr);
1051   ///
1052   /// UNDI will pass the virtual and mapped addresses of a buffer.
1053   /// This call will un map the given address.
1054   ///
1055   /// This field can be set to zero if there is no unmapping service available.
1056   ///
1057   UINT64    UnMap_Mem;
1058 
1059   ///
1060   /// PXE_VOID Sync_Mem(UINT64 unq_id, UINT64 virtual,
1061   ///            UINT32 size, UINT32 Direction, UINT64 mapped_addr);
1062   ///
1063   /// UNDI will pass the virtual and mapped addresses of a buffer.
1064   /// This call will synchronize the contents of both the virtual and mapped.
1065   /// buffers for the given Direction.
1066   ///
1067   /// This field can be set to zero if there is no service available.
1068   ///
1069   UINT64    Sync_Mem;
1070 
1071   ///
1072   /// protocol driver can provide anything for this Unique_ID, UNDI remembers
1073   /// that as just a 64bit value associated to the interface specified by
1074   /// the ifnum and gives it back as a parameter to all the call-back routines
1075   /// when calling for that interface!
1076   ///
1077   UINT64    Unique_ID;
1078 } PXE_CPB_START_31;
1079 
1080 #define TO_AND_FROM_DEVICE  0
1081 #define FROM_DEVICE         1
1082 #define TO_DEVICE           2
1083 
1084 #define PXE_DELAY_MILLISECOND  1000
1085 #define PXE_DELAY_SECOND       1000000
1086 #define PXE_IO_READ            0
1087 #define PXE_IO_WRITE           1
1088 #define PXE_MEM_READ           2
1089 #define PXE_MEM_WRITE          4
1090 
1091 typedef struct s_pxe_db_get_init_info {
1092   ///
1093   /// Minimum length of locked memory buffer that must be given to
1094   /// the Initialize command. Giving UNDI more memory will generally
1095   /// give better performance.
1096   ///
1097   /// If MemoryRequired is zero, the UNDI does not need and will not
1098   /// use system memory to receive and transmit packets.
1099   ///
1100   PXE_UINT32    MemoryRequired;
1101 
1102   ///
1103   /// Maximum frame data length for Tx/Rx excluding the media header.
1104   ///
1105   PXE_UINT32    FrameDataLen;
1106 
1107   ///
1108   /// Supported link speeds are in units of mega bits.  Common ethernet
1109   /// values are 10, 100 and 1000.  Unused LinkSpeeds[] entries are zero
1110   /// filled.
1111   ///
1112   PXE_UINT32    LinkSpeeds[4];
1113 
1114   ///
1115   /// Number of non-volatile storage items.
1116   ///
1117   PXE_UINT32    NvCount;
1118 
1119   ///
1120   /// Width of non-volatile storage item in bytes.  0, 1, 2 or 4
1121   ///
1122   PXE_UINT16    NvWidth;
1123 
1124   ///
1125   /// Media header length.  This is the typical media header length for
1126   /// this UNDI.  This information is needed when allocating receive
1127   /// and transmit buffers.
1128   ///
1129   PXE_UINT16    MediaHeaderLen;
1130 
1131   ///
1132   /// Number of bytes in the NIC hardware (MAC) address.
1133   ///
1134   PXE_UINT16    HWaddrLen;
1135 
1136   ///
1137   /// Maximum number of multicast MAC addresses in the multicast
1138   /// MAC address filter list.
1139   ///
1140   PXE_UINT16    MCastFilterCnt;
1141 
1142   ///
1143   /// Default number and size of transmit and receive buffers that will
1144   /// be allocated by the UNDI.  If MemoryRequired is non-zero, this
1145   /// allocation will come out of the memory buffer given to the Initialize
1146   /// command.  If MemoryRequired is zero, this allocation will come out of
1147   /// memory on the NIC.
1148   ///
1149   PXE_UINT16    TxBufCnt;
1150   PXE_UINT16    TxBufSize;
1151   PXE_UINT16    RxBufCnt;
1152   PXE_UINT16    RxBufSize;
1153 
1154   ///
1155   /// Hardware interface types defined in the Assigned Numbers RFC
1156   /// and used in DHCP and ARP packets.
1157   /// See the PXE_IFTYPE typedef and PXE_IFTYPE_xxx macros.
1158   ///
1159   PXE_UINT8     IFtype;
1160 
1161   ///
1162   /// Supported duplex.  See PXE_DUPLEX_xxxxx #defines below.
1163   ///
1164   PXE_UINT8     SupportedDuplexModes;
1165 
1166   ///
1167   /// Supported loopback options.  See PXE_LOOPBACK_xxxxx #defines below.
1168   ///
1169   PXE_UINT8     SupportedLoopBackModes;
1170 } PXE_DB_GET_INIT_INFO;
1171 
1172 #define PXE_MAX_TXRX_UNIT_ETHER  1500
1173 
1174 #define PXE_HWADDR_LEN_ETHER      0x0006
1175 #define PXE_MAC_HEADER_LEN_ETHER  0x000E
1176 
1177 #define PXE_DUPLEX_ENABLE_FULL_SUPPORTED  1
1178 #define PXE_DUPLEX_FORCE_FULL_SUPPORTED   2
1179 
1180 #define PXE_LOOPBACK_INTERNAL_SUPPORTED  1
1181 #define PXE_LOOPBACK_EXTERNAL_SUPPORTED  2
1182 
1183 typedef struct s_pxe_pci_config_info {
1184   ///
1185   /// This is the flag field for the PXE_DB_GET_CONFIG_INFO union.
1186   /// For PCI bus devices, this field is set to PXE_BUSTYPE_PCI.
1187   ///
1188   UINT32    BusType;
1189 
1190   ///
1191   /// This identifies the PCI network device that this UNDI interface.
1192   /// is bound to.
1193   ///
1194   UINT16    Bus;
1195   UINT8     Device;
1196   UINT8     Function;
1197 
1198   ///
1199   /// This is a copy of the PCI configuration space for this
1200   /// network device.
1201   ///
1202   union {
1203     UINT8     Byte[256];
1204     UINT16    Word[128];
1205     UINT32    Dword[64];
1206   } Config;
1207 } PXE_PCI_CONFIG_INFO;
1208 
1209 typedef struct s_pxe_pcc_config_info {
1210   ///
1211   /// This is the flag field for the PXE_DB_GET_CONFIG_INFO union.
1212   /// For PCC bus devices, this field is set to PXE_BUSTYPE_PCC.
1213   ///
1214   PXE_UINT32    BusType;
1215 
1216   ///
1217   /// This identifies the PCC network device that this UNDI interface
1218   /// is bound to.
1219   ///
1220   PXE_UINT16    Bus;
1221   PXE_UINT8     Device;
1222   PXE_UINT8     Function;
1223 
1224   ///
1225   /// This is a copy of the PCC configuration space for this
1226   /// network device.
1227   ///
1228   union {
1229     PXE_UINT8     Byte[256];
1230     PXE_UINT16    Word[128];
1231     PXE_UINT32    Dword[64];
1232   } Config;
1233 } PXE_PCC_CONFIG_INFO;
1234 
1235 typedef union u_pxe_db_get_config_info {
1236   PXE_PCI_CONFIG_INFO    pci;
1237   PXE_PCC_CONFIG_INFO    pcc;
1238 } PXE_DB_GET_CONFIG_INFO;
1239 
1240 typedef struct s_pxe_cpb_initialize {
1241   ///
1242   /// Address of first (lowest) byte of the memory buffer.  This buffer must
1243   /// be in contiguous physical memory and cannot be swapped out.  The UNDI
1244   /// will be using this for transmit and receive buffering.
1245   ///
1246   PXE_UINT64    MemoryAddr;
1247 
1248   ///
1249   /// MemoryLength must be greater than or equal to MemoryRequired
1250   /// returned by the Get Init Info command.
1251   ///
1252   PXE_UINT32    MemoryLength;
1253 
1254   ///
1255   /// Desired link speed in Mbit/sec.  Common ethernet values are 10, 100
1256   /// and 1000.  Setting a value of zero will auto-detect and/or use the
1257   /// default link speed (operation depends on UNDI/NIC functionality).
1258   ///
1259   PXE_UINT32    LinkSpeed;
1260 
1261   ///
1262   /// Suggested number and size of receive and transmit buffers to
1263   /// allocate.  If MemoryAddr and MemoryLength are non-zero, this
1264   /// allocation comes out of the supplied memory buffer.  If MemoryAddr
1265   /// and MemoryLength are zero, this allocation comes out of memory
1266   /// on the NIC.
1267   ///
1268   /// If these fields are set to zero, the UNDI will allocate buffer
1269   /// counts and sizes as it sees fit.
1270   ///
1271   PXE_UINT16    TxBufCnt;
1272   PXE_UINT16    TxBufSize;
1273   PXE_UINT16    RxBufCnt;
1274   PXE_UINT16    RxBufSize;
1275 
1276   ///
1277   /// The following configuration parameters are optional and must be zero
1278   /// to use the default values.
1279   ///
1280   PXE_UINT8     DuplexMode;
1281 
1282   PXE_UINT8     LoopBackMode;
1283 } PXE_CPB_INITIALIZE;
1284 
1285 #define PXE_DUPLEX_DEFAULT       0x00
1286 #define PXE_FORCE_FULL_DUPLEX    0x01
1287 #define PXE_ENABLE_FULL_DUPLEX   0x02
1288 #define PXE_FORCE_HALF_DUPLEX    0x04
1289 #define PXE_DISABLE_FULL_DUPLEX  0x08
1290 
1291 #define LOOPBACK_NORMAL    0
1292 #define LOOPBACK_INTERNAL  1
1293 #define LOOPBACK_EXTERNAL  2
1294 
1295 typedef struct s_pxe_db_initialize {
1296   ///
1297   /// Actual amount of memory used from the supplied memory buffer.  This
1298   /// may be less that the amount of memory suppllied and may be zero if
1299   /// the UNDI and network device do not use external memory buffers.
1300   ///
1301   /// Memory used by the UNDI and network device is allocated from the
1302   /// lowest memory buffer address.
1303   ///
1304   PXE_UINT32    MemoryUsed;
1305 
1306   ///
1307   /// Actual number and size of receive and transmit buffers that were
1308   /// allocated.
1309   ///
1310   PXE_UINT16    TxBufCnt;
1311   PXE_UINT16    TxBufSize;
1312   PXE_UINT16    RxBufCnt;
1313   PXE_UINT16    RxBufSize;
1314 } PXE_DB_INITIALIZE;
1315 
1316 typedef struct s_pxe_cpb_receive_filters {
1317   ///
1318   /// List of multicast MAC addresses.  This list, if present, will
1319   /// replace the existing multicast MAC address filter list.
1320   ///
1321   PXE_MAC_ADDR    MCastList[MAX_MCAST_ADDRESS_CNT];
1322 } PXE_CPB_RECEIVE_FILTERS;
1323 
1324 typedef struct s_pxe_db_receive_filters {
1325   ///
1326   /// Filtered multicast MAC address list.
1327   ///
1328   PXE_MAC_ADDR    MCastList[MAX_MCAST_ADDRESS_CNT];
1329 } PXE_DB_RECEIVE_FILTERS;
1330 
1331 typedef struct s_pxe_cpb_station_address {
1332   ///
1333   /// If supplied and supported, the current station MAC address
1334   /// will be changed.
1335   ///
1336   PXE_MAC_ADDR    StationAddr;
1337 } PXE_CPB_STATION_ADDRESS;
1338 
1339 typedef struct s_pxe_dpb_station_address {
1340   ///
1341   /// Current station MAC address.
1342   ///
1343   PXE_MAC_ADDR    StationAddr;
1344 
1345   ///
1346   /// Station broadcast MAC address.
1347   ///
1348   PXE_MAC_ADDR    BroadcastAddr;
1349 
1350   ///
1351   /// Permanent station MAC address.
1352   ///
1353   PXE_MAC_ADDR    PermanentAddr;
1354 } PXE_DB_STATION_ADDRESS;
1355 
1356 typedef struct s_pxe_db_statistics {
1357   ///
1358   /// Bit field identifying what statistic data is collected by the
1359   /// UNDI/NIC.
1360   /// If bit 0x00 is set, Data[0x00] is collected.
1361   /// If bit 0x01 is set, Data[0x01] is collected.
1362   /// If bit 0x20 is set, Data[0x20] is collected.
1363   /// If bit 0x21 is set, Data[0x21] is collected.
1364   /// Etc.
1365   ///
1366   PXE_UINT64    Supported;
1367 
1368   ///
1369   /// Statistic data.
1370   ///
1371   PXE_UINT64    Data[64];
1372 } PXE_DB_STATISTICS;
1373 
1374 ///
1375 /// Total number of frames received.  Includes frames with errors and
1376 /// dropped frames.
1377 ///
1378 #define PXE_STATISTICS_RX_TOTAL_FRAMES  0x00
1379 
1380 ///
1381 /// Number of valid frames received and copied into receive buffers.
1382 ///
1383 #define PXE_STATISTICS_RX_GOOD_FRAMES  0x01
1384 
1385 ///
1386 /// Number of frames below the minimum length for the media.
1387 /// This would be <64 for ethernet.
1388 ///
1389 #define PXE_STATISTICS_RX_UNDERSIZE_FRAMES  0x02
1390 
1391 ///
1392 /// Number of frames longer than the maxminum length for the
1393 /// media.  This would be >1500 for ethernet.
1394 ///
1395 #define PXE_STATISTICS_RX_OVERSIZE_FRAMES  0x03
1396 
1397 ///
1398 /// Valid frames that were dropped because receive buffers were full.
1399 ///
1400 #define PXE_STATISTICS_RX_DROPPED_FRAMES  0x04
1401 
1402 ///
1403 /// Number of valid unicast frames received and not dropped.
1404 ///
1405 #define PXE_STATISTICS_RX_UNICAST_FRAMES  0x05
1406 
1407 ///
1408 /// Number of valid broadcast frames received and not dropped.
1409 ///
1410 #define PXE_STATISTICS_RX_BROADCAST_FRAMES  0x06
1411 
1412 ///
1413 /// Number of valid mutlicast frames received and not dropped.
1414 ///
1415 #define PXE_STATISTICS_RX_MULTICAST_FRAMES  0x07
1416 
1417 ///
1418 /// Number of frames w/ CRC or alignment errors.
1419 ///
1420 #define PXE_STATISTICS_RX_CRC_ERROR_FRAMES  0x08
1421 
1422 ///
1423 /// Total number of bytes received.  Includes frames with errors
1424 /// and dropped frames.
1425 ///
1426 #define PXE_STATISTICS_RX_TOTAL_BYTES  0x09
1427 
1428 ///
1429 /// Transmit statistics.
1430 ///
1431 #define PXE_STATISTICS_TX_TOTAL_FRAMES      0x0A
1432 #define PXE_STATISTICS_TX_GOOD_FRAMES       0x0B
1433 #define PXE_STATISTICS_TX_UNDERSIZE_FRAMES  0x0C
1434 #define PXE_STATISTICS_TX_OVERSIZE_FRAMES   0x0D
1435 #define PXE_STATISTICS_TX_DROPPED_FRAMES    0x0E
1436 #define PXE_STATISTICS_TX_UNICAST_FRAMES    0x0F
1437 #define PXE_STATISTICS_TX_BROADCAST_FRAMES  0x10
1438 #define PXE_STATISTICS_TX_MULTICAST_FRAMES  0x11
1439 #define PXE_STATISTICS_TX_CRC_ERROR_FRAMES  0x12
1440 #define PXE_STATISTICS_TX_TOTAL_BYTES       0x13
1441 
1442 ///
1443 /// Number of collisions detection on this subnet.
1444 ///
1445 #define PXE_STATISTICS_COLLISIONS  0x14
1446 
1447 ///
1448 /// Number of frames destined for unsupported protocol.
1449 ///
1450 #define PXE_STATISTICS_UNSUPPORTED_PROTOCOL  0x15
1451 
1452 ///
1453 /// Number of valid frames received that were duplicated.
1454 ///
1455 #define PXE_STATISTICS_RX_DUPLICATED_FRAMES  0x16
1456 
1457 ///
1458 /// Number of encrypted frames received that failed to decrypt.
1459 ///
1460 #define PXE_STATISTICS_RX_DECRYPT_ERROR_FRAMES  0x17
1461 
1462 ///
1463 /// Number of frames that failed to transmit after exceeding the retry limit.
1464 ///
1465 #define PXE_STATISTICS_TX_ERROR_FRAMES  0x18
1466 
1467 ///
1468 /// Number of frames transmitted successfully after more than one attempt.
1469 ///
1470 #define PXE_STATISTICS_TX_RETRY_FRAMES  0x19
1471 
1472 typedef struct s_pxe_cpb_mcast_ip_to_mac {
1473   ///
1474   /// Multicast IP address to be converted to multicast MAC address.
1475   ///
1476   PXE_IP_ADDR    IP;
1477 } PXE_CPB_MCAST_IP_TO_MAC;
1478 
1479 typedef struct s_pxe_db_mcast_ip_to_mac {
1480   ///
1481   /// Multicast MAC address.
1482   ///
1483   PXE_MAC_ADDR    MAC;
1484 } PXE_DB_MCAST_IP_TO_MAC;
1485 
1486 typedef struct s_pxe_cpb_nvdata_sparse {
1487   ///
1488   /// NvData item list.  Only items in this list will be updated.
1489   ///
1490   struct {
1491     ///
1492     ///  Non-volatile storage address to be changed.
1493     ///
1494     PXE_UINT32    Addr;
1495 
1496     ///
1497     /// Data item to write into above storage address.
1498     ///
1499     union {
1500       PXE_UINT8     Byte;
1501       PXE_UINT16    Word;
1502       PXE_UINT32    Dword;
1503     } Data;
1504   } Item[MAX_EEPROM_LEN];
1505 } PXE_CPB_NVDATA_SPARSE;
1506 
1507 ///
1508 /// When using bulk update, the size of the CPB structure must be
1509 /// the same size as the non-volatile NIC storage.
1510 ///
1511 typedef union u_pxe_cpb_nvdata_bulk {
1512   ///
1513   /// Array of byte-wide data items.
1514   ///
1515   PXE_UINT8     Byte[MAX_EEPROM_LEN << 2];
1516 
1517   ///
1518   /// Array of word-wide data items.
1519   ///
1520   PXE_UINT16    Word[MAX_EEPROM_LEN << 1];
1521 
1522   ///
1523   /// Array of dword-wide data items.
1524   ///
1525   PXE_UINT32    Dword[MAX_EEPROM_LEN];
1526 } PXE_CPB_NVDATA_BULK;
1527 
1528 typedef struct s_pxe_db_nvdata {
1529   ///
1530   /// Arrays of data items from non-volatile storage.
1531   ///
1532   union {
1533     ///
1534     /// Array of byte-wide data items.
1535     ///
1536     PXE_UINT8     Byte[MAX_EEPROM_LEN << 2];
1537 
1538     ///
1539     /// Array of word-wide data items.
1540     ///
1541     PXE_UINT16    Word[MAX_EEPROM_LEN << 1];
1542 
1543     ///
1544     /// Array of dword-wide data items.
1545     ///
1546     PXE_UINT32    Dword[MAX_EEPROM_LEN];
1547   } Data;
1548 } PXE_DB_NVDATA;
1549 
1550 typedef struct s_pxe_db_get_status {
1551   ///
1552   /// Length of next receive frame (header + data).  If this is zero,
1553   /// there is no next receive frame available.
1554   ///
1555   PXE_UINT32    RxFrameLen;
1556 
1557   ///
1558   /// Reserved, set to zero.
1559   ///
1560   PXE_UINT32    reserved;
1561 
1562   ///
1563   ///  Addresses of transmitted buffers that need to be recycled.
1564   ///
1565   PXE_UINT64    TxBuffer[MAX_XMIT_BUFFERS];
1566 } PXE_DB_GET_STATUS;
1567 
1568 typedef struct s_pxe_cpb_fill_header {
1569   ///
1570   /// Source and destination MAC addresses.  These will be copied into
1571   /// the media header without doing byte swapping.
1572   ///
1573   PXE_MAC_ADDR    SrcAddr;
1574   PXE_MAC_ADDR    DestAddr;
1575 
1576   ///
1577   /// Address of first byte of media header.  The first byte of packet data
1578   /// follows the last byte of the media header.
1579   ///
1580   PXE_UINT64      MediaHeader;
1581 
1582   ///
1583   /// Length of packet data in bytes (not including the media header).
1584   ///
1585   PXE_UINT32      PacketLen;
1586 
1587   ///
1588   /// Protocol type.  This will be copied into the media header without
1589   /// doing byte swapping.  Protocol type numbers can be obtained from
1590   /// the Assigned Numbers RFC 1700.
1591   ///
1592   PXE_UINT16      Protocol;
1593 
1594   ///
1595   /// Length of the media header in bytes.
1596   ///
1597   PXE_UINT16      MediaHeaderLen;
1598 } PXE_CPB_FILL_HEADER;
1599 
1600 #define PXE_PROTOCOL_ETHERNET_IP   0x0800
1601 #define PXE_PROTOCOL_ETHERNET_ARP  0x0806
1602 #define MAX_XMIT_FRAGMENTS         16
1603 
1604 typedef struct s_pxe_cpb_fill_header_fragmented {
1605   ///
1606   /// Source and destination MAC addresses.  These will be copied into
1607   /// the media header without doing byte swapping.
1608   ///
1609   PXE_MAC_ADDR          SrcAddr;
1610   PXE_MAC_ADDR          DestAddr;
1611 
1612   ///
1613   /// Length of packet data in bytes (not including the media header).
1614   ///
1615   PXE_UINT32            PacketLen;
1616 
1617   ///
1618   /// Protocol type.  This will be copied into the media header without
1619   /// doing byte swapping.  Protocol type numbers can be obtained from
1620   /// the Assigned Numbers RFC 1700.
1621   ///
1622   PXE_MEDIA_PROTOCOL    Protocol;
1623 
1624   ///
1625   /// Length of the media header in bytes.
1626   ///
1627   PXE_UINT16            MediaHeaderLen;
1628 
1629   ///
1630   /// Number of packet fragment descriptors.
1631   ///
1632   PXE_UINT16            FragCnt;
1633 
1634   ///
1635   /// Reserved, must be set to zero.
1636   ///
1637   PXE_UINT16            reserved;
1638 
1639   ///
1640   /// Array of packet fragment descriptors.  The first byte of the media
1641   /// header is the first byte of the first fragment.
1642   ///
1643   struct {
1644     ///
1645     /// Address of this packet fragment.
1646     ///
1647     PXE_UINT64    FragAddr;
1648 
1649     ///
1650     /// Length of this packet fragment.
1651     ///
1652     PXE_UINT32    FragLen;
1653 
1654     ///
1655     /// Reserved, must be set to zero.
1656     ///
1657     PXE_UINT32    reserved;
1658   } FragDesc[MAX_XMIT_FRAGMENTS];
1659 } PXE_CPB_FILL_HEADER_FRAGMENTED;
1660 
1661 typedef struct s_pxe_cpb_transmit {
1662   ///
1663   /// Address of first byte of frame buffer.  This is also the first byte
1664   /// of the media header.
1665   ///
1666   PXE_UINT64    FrameAddr;
1667 
1668   ///
1669   /// Length of the data portion of the frame buffer in bytes.  Do not
1670   /// include the length of the media header.
1671   ///
1672   PXE_UINT32    DataLen;
1673 
1674   ///
1675   /// Length of the media header in bytes.
1676   ///
1677   PXE_UINT16    MediaheaderLen;
1678 
1679   ///
1680   /// Reserved, must be zero.
1681   ///
1682   PXE_UINT16    reserved;
1683 } PXE_CPB_TRANSMIT;
1684 
1685 typedef struct s_pxe_cpb_transmit_fragments {
1686   ///
1687   /// Length of packet data in bytes (not including the media header).
1688   ///
1689   PXE_UINT32    FrameLen;
1690 
1691   ///
1692   /// Length of the media header in bytes.
1693   ///
1694   PXE_UINT16    MediaheaderLen;
1695 
1696   ///
1697   /// Number of packet fragment descriptors.
1698   ///
1699   PXE_UINT16    FragCnt;
1700 
1701   ///
1702   /// Array of frame fragment descriptors.  The first byte of the first
1703   /// fragment is also the first byte of the media header.
1704   ///
1705   struct {
1706     ///
1707     /// Address of this frame fragment.
1708     ///
1709     PXE_UINT64    FragAddr;
1710 
1711     ///
1712     /// Length of this frame fragment.
1713     ///
1714     PXE_UINT32    FragLen;
1715 
1716     ///
1717     /// Reserved, must be set to zero.
1718     ///
1719     PXE_UINT32    reserved;
1720   } FragDesc[MAX_XMIT_FRAGMENTS];
1721 } PXE_CPB_TRANSMIT_FRAGMENTS;
1722 
1723 typedef struct s_pxe_cpb_receive {
1724   ///
1725   /// Address of first byte of receive buffer.  This is also the first byte
1726   /// of the frame header.
1727   ///
1728   PXE_UINT64    BufferAddr;
1729 
1730   ///
1731   /// Length of receive buffer.  This must be large enough to hold the
1732   /// received frame (media header + data).  If the length of smaller than
1733   /// the received frame, data will be lost.
1734   ///
1735   PXE_UINT32    BufferLen;
1736 
1737   ///
1738   /// Reserved, must be set to zero.
1739   ///
1740   PXE_UINT32    reserved;
1741 } PXE_CPB_RECEIVE;
1742 
1743 typedef struct s_pxe_db_receive {
1744   ///
1745   /// Source and destination MAC addresses from media header.
1746   ///
1747   PXE_MAC_ADDR          SrcAddr;
1748   PXE_MAC_ADDR          DestAddr;
1749 
1750   ///
1751   /// Length of received frame.  May be larger than receive buffer size.
1752   /// The receive buffer will not be overwritten.  This is how to tell
1753   /// if data was lost because the receive buffer was too small.
1754   ///
1755   PXE_UINT32            FrameLen;
1756 
1757   ///
1758   /// Protocol type from media header.
1759   ///
1760   PXE_MEDIA_PROTOCOL    Protocol;
1761 
1762   ///
1763   /// Length of media header in received frame.
1764   ///
1765   PXE_UINT16            MediaHeaderLen;
1766 
1767   ///
1768   /// Type of receive frame.
1769   ///
1770   PXE_FRAME_TYPE        Type;
1771 
1772   ///
1773   /// Reserved, must be zero.
1774   ///
1775   PXE_UINT8             reserved[7];
1776 } PXE_DB_RECEIVE;
1777 
1778 #pragma pack()
1779 
1780 #endif
1781