1 /*++
2 
3 Copyright (c) 2004 - 2006, Intel Corporation. All rights reserved.<BR>
4 This program and the accompanying materials
5 are licensed and made available under the terms and conditions of the BSD License
6 which accompanies this distribution.  The full text of the license may be found at
7 http://opensource.org/licenses/bsd-license.php
8 
9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
11 
12 Module name:
13 
14     EfiPxe.h
15 
16 32/64-bit PXE specification:
17 
18     alpha-4, 99-Dec-17
19 
20 Abstract:
21 
22     This header file contains all of the PXE type definitions,
23     structure prototypes, global variables and constants that
24     are needed for porting PXE to EFI.
25 --*/
26 
27 #ifndef _EFIPXE_H
28 #define _EFIPXE_H
29 
30 #pragma pack(1)
31 
32 #define PXE_INTEL_ORDER 1 // Intel order
33 // #define PXE_NETWORK_ORDER         1   // network order
34 //
35 #define PXE_UINT64_SUPPORT  1 // UINT64 supported
36 #if PXE_UINT64_SUPPORT == 0
37 #define PXE_NO_UINT64_SUPPORT     1
38 #else
39 #define PXE_NO_UINT64_SUPPORT     0
40 #endif
41 //
42 #define PXE_BUSTYPE(a, b, c, d) \
43     ( \
44       (((UINT32) (d) & 0xFF) << 24) | (((UINT32) (c) & 0xFF) << 16) | (((UINT32) (b) & 0xFF) << 8) | \
45         ((UINT32) (a) & 0xFF) \
46     )
47 
48 //
49 // UNDI ROM ID and devive ID signature
50 //
51 #define PXE_BUSTYPE_PXE PXE_BUSTYPE ('!', 'P', 'X', 'E')
52 
53 //
54 // BUS ROM ID signatures
55 //
56 #define PXE_BUSTYPE_PCI     PXE_BUSTYPE ('P', 'C', 'I', 'R')
57 #define PXE_BUSTYPE_PC_CARD PXE_BUSTYPE ('P', 'C', 'C', 'R')
58 #define PXE_BUSTYPE_USB     PXE_BUSTYPE ('U', 'S', 'B', 'R')
59 #define PXE_BUSTYPE_1394    PXE_BUSTYPE ('1', '3', '9', '4')
60 
61 #define PXE_SWAP_UINT16(n)  ((((UINT16) (n) & 0x00FF) << 8) | (((UINT16) (n) & 0xFF00) >> 8))
62 
63 #define PXE_SWAP_UINT32(n) \
64 ((((UINT32)(n) & 0x000000FF) << 24) |   \
65 (((UINT32)(n) & 0x0000FF00) << 8) |     \
66 (((UINT32)(n) & 0x00FF0000) >> 8) |     \
67 (((UINT32)(n) & 0xFF000000) >> 24))
68 
69 #if PXE_UINT64_SUPPORT != 0
70 #define PXE_SWAP_UINT64(n) \
71 ((((UINT64)(n) & 0x00000000000000FF) << 56) |   \
72 (((UINT64)(n) & 0x000000000000FF00) << 40) |    \
73 (((UINT64)(n) & 0x0000000000FF0000) << 24) |    \
74 (((UINT64)(n) & 0x00000000FF000000) << 8) | \
75 (((UINT64)(n) & 0x000000FF00000000) >> 8) | \
76 (((UINT64)(n) & 0x0000FF0000000000) >> 24) |    \
77 (((UINT64)(n) & 0x00FF000000000000) >> 40) |    \
78 (((UINT64)(n) & 0xFF00000000000000) >> 56))
79 #endif // PXE_UINT64_SUPPORT
80 #if PXE_NO_UINT64_SUPPORT != 0
81 #define PXE_SWAP_UINT64(n) { \
82     UINT32  tmp; \
83     tmp             = (PXE_UINT64) (n)[1]; \
84     (UINT64) (n)[1] = PXE_SWAP_UINT32 ((UINT64) (n)[0]); \
85     (UINT64) (n)[0] = tmp; \
86   }
87 #endif // PXE_NO_UINT64_SUPPORT
88 #define PXE_CPBSIZE_NOT_USED  0               // zero
89 #define PXE_DBSIZE_NOT_USED   0               // zero
90 #define PXE_CPBADDR_NOT_USED  (PXE_UINT64) 0  // zero
91 #define PXE_DBADDR_NOT_USED   (PXE_UINT64) 0  // zero
92 #define PXE_CONST             const
93 
94 #define PXE_VOLATILE          volatile
95 
96 #if PXE_UINT64_SUPPORT != 0
97 //
98 // typedef unsigned long PXE_UINT64;
99 //
100 typedef UINT64      PXE_UINT64;
101 #endif // PXE_UINT64_SUPPORT
102 #if PXE_NO_UINT64_SUPPORT != 0
103 typedef PXE_UINT32  PXE_UINT64[2];
104 #endif // PXE_NO_UINT64_SUPPORT
105 #define PXE_FALSE 0 // zero
106 #define PXE_TRUE  (!PXE_FALSE)
107 
108 typedef UINT16      PXE_OPCODE;
109 
110 //
111 // Return UNDI operational state.
112 //
113 #define PXE_OPCODE_GET_STATE  0x0000
114 
115 //
116 // Change UNDI operational state from Stopped to Started.
117 //
118 #define PXE_OPCODE_START  0x0001
119 
120 //
121 // Change UNDI operational state from Started to Stopped.
122 //
123 #define PXE_OPCODE_STOP 0x0002
124 
125 //
126 // Get UNDI initialization information.
127 //
128 #define PXE_OPCODE_GET_INIT_INFO  0x0003
129 
130 //
131 // Get NIC configuration information.
132 //
133 #define PXE_OPCODE_GET_CONFIG_INFO  0x0004
134 
135 //
136 // Changed UNDI operational state from Started to Initialized.
137 //
138 #define PXE_OPCODE_INITIALIZE 0x0005
139 
140 //
141 // Re-initialize the NIC H/W.
142 //
143 #define PXE_OPCODE_RESET  0x0006
144 
145 //
146 // Change the UNDI operational state from Initialized to Started.
147 //
148 #define PXE_OPCODE_SHUTDOWN 0x0007
149 
150 //
151 // Read & change state of external interrupt enables.
152 //
153 #define PXE_OPCODE_INTERRUPT_ENABLES  0x0008
154 
155 //
156 // Read & change state of packet receive filters.
157 //
158 #define PXE_OPCODE_RECEIVE_FILTERS  0x0009
159 
160 //
161 // Read & change station MAC address.
162 //
163 #define PXE_OPCODE_STATION_ADDRESS  0x000A
164 
165 //
166 // Read traffic statistics.
167 //
168 #define PXE_OPCODE_STATISTICS 0x000B
169 
170 //
171 // Convert multicast IP address to multicast MAC address.
172 //
173 #define PXE_OPCODE_MCAST_IP_TO_MAC  0x000C
174 
175 //
176 // Read or change non-volatile storage on the NIC.
177 //
178 #define PXE_OPCODE_NVDATA 0x000D
179 
180 //
181 // Get & clear interrupt status.
182 //
183 #define PXE_OPCODE_GET_STATUS 0x000E
184 
185 //
186 // Fill media header in packet for transmit.
187 //
188 #define PXE_OPCODE_FILL_HEADER  0x000F
189 
190 //
191 // Transmit packet(s).
192 //
193 #define PXE_OPCODE_TRANSMIT 0x0010
194 
195 //
196 // Receive packet.
197 //
198 #define PXE_OPCODE_RECEIVE  0x0011
199 
200 //
201 // last valid opcode:
202 //
203 #define PXE_OPCODE_VALID_MAX  0x0011
204 
205 //
206 // Last valid PXE UNDI OpCode number.
207 //
208 #define PXE_OPCODE_LAST_VALID 0x0011
209 
210 typedef UINT16  PXE_OPFLAGS;
211 
212 #define PXE_OPFLAGS_NOT_USED  0x0000
213 
214 //
215 // //////////////////////////////////////
216 // UNDI Get State
217 //
218 // No OpFlags
219 
220 ////////////////////////////////////////
221 // UNDI Start
222 //
223 // No OpFlags
224 
225 ////////////////////////////////////////
226 // UNDI Stop
227 //
228 // No OpFlags
229 
230 ////////////////////////////////////////
231 // UNDI Get Init Info
232 //
233 // No Opflags
234 
235 ////////////////////////////////////////
236 // UNDI Get Config Info
237 //
238 // No Opflags
239 
240 ////////////////////////////////////////
241 // UNDI Initialize
242 //
243 #define PXE_OPFLAGS_INITIALIZE_CABLE_DETECT_MASK    0x0001
244 #define PXE_OPFLAGS_INITIALIZE_DETECT_CABLE         0x0000
245 #define PXE_OPFLAGS_INITIALIZE_DO_NOT_DETECT_CABLE  0x0001
246 
247 //
248 // //////////////////////////////////////
249 // UNDI Reset
250 //
251 #define PXE_OPFLAGS_RESET_DISABLE_INTERRUPTS  0x0001
252 #define PXE_OPFLAGS_RESET_DISABLE_FILTERS     0x0002
253 
254 //
255 // //////////////////////////////////////
256 // UNDI Shutdown
257 //
258 // No OpFlags
259 
260 ////////////////////////////////////////
261 // UNDI Interrupt Enables
262 //
263 //
264 // Select whether to enable or disable external interrupt signals.
265 // Setting both enable and disable will return PXE_STATCODE_INVALID_OPFLAGS.
266 //
267 #define PXE_OPFLAGS_INTERRUPT_OPMASK  0xC000
268 #define PXE_OPFLAGS_INTERRUPT_ENABLE  0x8000
269 #define PXE_OPFLAGS_INTERRUPT_DISABLE 0x4000
270 #define PXE_OPFLAGS_INTERRUPT_READ    0x0000
271 
272 //
273 // Enable receive interrupts.  An external interrupt will be generated
274 // after a complete non-error packet has been received.
275 //
276 #define PXE_OPFLAGS_INTERRUPT_RECEIVE 0x0001
277 
278 //
279 // Enable transmit interrupts.  An external interrupt will be generated
280 // after a complete non-error packet has been transmitted.
281 //
282 #define PXE_OPFLAGS_INTERRUPT_TRANSMIT  0x0002
283 
284 //
285 // Enable command interrupts.  An external interrupt will be generated
286 // when command execution stops.
287 //
288 #define PXE_OPFLAGS_INTERRUPT_COMMAND 0x0004
289 
290 //
291 // Generate software interrupt.  Setting this bit generates an external
292 // interrupt, if it is supported by the hardware.
293 //
294 #define PXE_OPFLAGS_INTERRUPT_SOFTWARE  0x0008
295 
296 //
297 // //////////////////////////////////////
298 // UNDI Receive Filters
299 //
300 //
301 // Select whether to enable or disable receive filters.
302 // Setting both enable and disable will return PXE_STATCODE_INVALID_OPCODE.
303 //
304 #define PXE_OPFLAGS_RECEIVE_FILTER_OPMASK   0xC000
305 #define PXE_OPFLAGS_RECEIVE_FILTER_ENABLE   0x8000
306 #define PXE_OPFLAGS_RECEIVE_FILTER_DISABLE  0x4000
307 #define PXE_OPFLAGS_RECEIVE_FILTER_READ     0x0000
308 
309 //
310 // To reset the contents of the multicast MAC address filter list,
311 // set this OpFlag:
312 //
313 #define PXE_OPFLAGS_RECEIVE_FILTER_RESET_MCAST_LIST 0x2000
314 
315 //
316 // Enable unicast packet receiving.  Packets sent to the current station
317 // MAC address will be received.
318 //
319 #define PXE_OPFLAGS_RECEIVE_FILTER_UNICAST  0x0001
320 
321 //
322 // Enable broadcast packet receiving.  Packets sent to the broadcast
323 // MAC address will be received.
324 //
325 #define PXE_OPFLAGS_RECEIVE_FILTER_BROADCAST  0x0002
326 
327 //
328 // Enable filtered multicast packet receiving.  Packets sent to any
329 // of the multicast MAC addresses in the multicast MAC address filter
330 // list will be received.  If the filter list is empty, no multicast
331 //
332 #define PXE_OPFLAGS_RECEIVE_FILTER_FILTERED_MULTICAST 0x0004
333 
334 //
335 // Enable promiscuous packet receiving.  All packets will be received.
336 //
337 #define PXE_OPFLAGS_RECEIVE_FILTER_PROMISCUOUS  0x0008
338 
339 //
340 // Enable promiscuous multicast packet receiving.  All multicast
341 // packets will be received.
342 //
343 #define PXE_OPFLAGS_RECEIVE_FILTER_ALL_MULTICAST  0x0010
344 
345 //
346 // //////////////////////////////////////
347 // UNDI Station Address
348 //
349 #define PXE_OPFLAGS_STATION_ADDRESS_READ   0x0000
350 #define PXE_OPFLAGS_STATION_ADDRESS_WRITE  0x0000
351 #define PXE_OPFLAGS_STATION_ADDRESS_RESET  0x0001
352 
353 //
354 // //////////////////////////////////////
355 // UNDI Statistics
356 //
357 #define PXE_OPFLAGS_STATISTICS_READ   0x0000
358 #define PXE_OPFLAGS_STATISTICS_RESET  0x0001
359 
360 //
361 // //////////////////////////////////////
362 // UNDI MCast IP to MAC
363 //
364 //
365 // Identify the type of IP address in the CPB.
366 //
367 #define PXE_OPFLAGS_MCAST_IP_TO_MAC_OPMASK  0x0003
368 #define PXE_OPFLAGS_MCAST_IPV4_TO_MAC       0x0000
369 #define PXE_OPFLAGS_MCAST_IPV6_TO_MAC       0x0001
370 
371 //
372 // //////////////////////////////////////
373 // UNDI NvData
374 //
375 //
376 // Select the type of non-volatile data operation.
377 //
378 #define PXE_OPFLAGS_NVDATA_OPMASK 0x0001
379 #define PXE_OPFLAGS_NVDATA_READ   0x0000
380 #define PXE_OPFLAGS_NVDATA_WRITE  0x0001
381 
382 //
383 // //////////////////////////////////////
384 // UNDI Get Status
385 //
386 //
387 // Return current interrupt status.  This will also clear any interrupts
388 // that are currently set.  This can be used in a polling routine.  The
389 // interrupt flags are still set and cleared even when the interrupts
390 // are disabled.
391 //
392 #define PXE_OPFLAGS_GET_INTERRUPT_STATUS  0x0001
393 
394 //
395 // Return list of transmitted buffers for recycling.  Transmit buffers
396 // must not be changed or unallocated until they have recycled.  After
397 // issuing a transmit command, wait for a transmit complete interrupt.
398 // When a transmit complete interrupt is received, read the transmitted
399 // buffers.  Do not plan on getting one buffer per interrupt.  Some
400 // NICs and UNDIs may transmit multiple buffers per interrupt.
401 //
402 #define PXE_OPFLAGS_GET_TRANSMITTED_BUFFERS 0x0002
403 
404 //
405 // //////////////////////////////////////
406 // UNDI Fill Header
407 //
408 #define PXE_OPFLAGS_FILL_HEADER_OPMASK      0x0001
409 #define PXE_OPFLAGS_FILL_HEADER_FRAGMENTED  0x0001
410 #define PXE_OPFLAGS_FILL_HEADER_WHOLE       0x0000
411 
412 //
413 // //////////////////////////////////////
414 // UNDI Transmit
415 //
416 //
417 // S/W UNDI only.  Return after the packet has been transmitted.  A
418 // transmit complete interrupt will still be generated and the transmit
419 // buffer will have to be recycled.
420 //
421 #define PXE_OPFLAGS_SWUNDI_TRANSMIT_OPMASK  0x0001
422 #define PXE_OPFLAGS_TRANSMIT_BLOCK          0x0001
423 #define PXE_OPFLAGS_TRANSMIT_DONT_BLOCK     0x0000
424 
425 //
426 //
427 //
428 #define PXE_OPFLAGS_TRANSMIT_OPMASK     0x0002
429 #define PXE_OPFLAGS_TRANSMIT_FRAGMENTED 0x0002
430 #define PXE_OPFLAGS_TRANSMIT_WHOLE      0x0000
431 
432 //
433 // //////////////////////////////////////
434 // UNDI Receive
435 //
436 // No OpFlags
437 //
438 typedef UINT16  PXE_STATFLAGS;
439 
440 #define PXE_STATFLAGS_INITIALIZE  0x0000
441 
442 //
443 // //////////////////////////////////////
444 // Common StatFlags that can be returned by all commands.
445 //
446 //
447 // The COMMAND_COMPLETE and COMMAND_FAILED status flags must be
448 // implemented by all UNDIs.  COMMAND_QUEUED is only needed by UNDIs
449 // that support command queuing.
450 //
451 #define PXE_STATFLAGS_STATUS_MASK       0xC000
452 #define PXE_STATFLAGS_COMMAND_COMPLETE  0xC000
453 #define PXE_STATFLAGS_COMMAND_FAILED    0x8000
454 #define PXE_STATFLAGS_COMMAND_QUEUED    0x4000
455 //
456 // #define PXE_STATFLAGS_INITIALIZE              0x0000
457 //
458 #define PXE_STATFLAGS_DB_WRITE_TRUNCATED  0x2000
459 
460 //
461 // //////////////////////////////////////
462 // UNDI Get State
463 //
464 #define PXE_STATFLAGS_GET_STATE_MASK        0x0003
465 #define PXE_STATFLAGS_GET_STATE_INITIALIZED 0x0002
466 #define PXE_STATFLAGS_GET_STATE_STARTED     0x0001
467 #define PXE_STATFLAGS_GET_STATE_STOPPED     0x0000
468 
469 //
470 // //////////////////////////////////////
471 // UNDI Start
472 //
473 // No additional StatFlags
474 
475 ////////////////////////////////////////
476 // UNDI Get Init Info
477 //
478 #define PXE_STATFLAGS_CABLE_DETECT_MASK           0x0001
479 #define PXE_STATFLAGS_CABLE_DETECT_NOT_SUPPORTED  0x0000
480 #define PXE_STATFLAGS_CABLE_DETECT_SUPPORTED      0x0001
481 
482 //
483 // //////////////////////////////////////
484 // UNDI Initialize
485 //
486 #define PXE_STATFLAGS_INITIALIZED_NO_MEDIA  0x0001
487 
488 //
489 // //////////////////////////////////////
490 // UNDI Reset
491 //
492 #define PXE_STATFLAGS_RESET_NO_MEDIA  0x0001
493 
494 //
495 // //////////////////////////////////////
496 // UNDI Shutdown
497 //
498 // No additional StatFlags
499 
500 ////////////////////////////////////////
501 // UNDI Interrupt Enables
502 //
503 //
504 // If set, receive interrupts are enabled.
505 //
506 #define PXE_STATFLAGS_INTERRUPT_RECEIVE 0x0001
507 
508 //
509 // If set, transmit interrupts are enabled.
510 //
511 #define PXE_STATFLAGS_INTERRUPT_TRANSMIT  0x0002
512 
513 //
514 // If set, command interrupts are enabled.
515 //
516 #define PXE_STATFLAGS_INTERRUPT_COMMAND 0x0004
517 
518 //
519 // //////////////////////////////////////
520 // UNDI Receive Filters
521 //
522 //
523 // If set, unicast packets will be received.
524 //
525 #define PXE_STATFLAGS_RECEIVE_FILTER_UNICAST  0x0001
526 
527 //
528 // If set, broadcast packets will be received.
529 //
530 #define PXE_STATFLAGS_RECEIVE_FILTER_BROADCAST  0x0002
531 
532 //
533 // If set, multicast packets that match up with the multicast address
534 // filter list will be received.
535 //
536 #define PXE_STATFLAGS_RECEIVE_FILTER_FILTERED_MULTICAST 0x0004
537 
538 //
539 // If set, all packets will be received.
540 //
541 #define PXE_STATFLAGS_RECEIVE_FILTER_PROMISCUOUS  0x0008
542 
543 //
544 // If set, all multicast packets will be received.
545 //
546 #define PXE_STATFLAGS_RECEIVE_FILTER_ALL_MULTICAST  0x0010
547 
548 //
549 // //////////////////////////////////////
550 // UNDI Station Address
551 //
552 // No additional StatFlags
553 
554 ////////////////////////////////////////
555 // UNDI Statistics
556 //
557 // No additional StatFlags
558 
559 ////////////////////////////////////////
560 // UNDI MCast IP to MAC
561 //
562 // No additional StatFlags
563 
564 ////////////////////////////////////////
565 // UNDI NvData
566 //
567 // No additional StatFlags
568 
569 
570 ////////////////////////////////////////
571 // UNDI Get Status
572 //
573 //
574 // Use to determine if an interrupt has occurred.
575 //
576 #define PXE_STATFLAGS_GET_STATUS_INTERRUPT_MASK 0x000F
577 #define PXE_STATFLAGS_GET_STATUS_NO_INTERRUPTS  0x0000
578 
579 //
580 // If set, at least one receive interrupt occurred.
581 //
582 #define PXE_STATFLAGS_GET_STATUS_RECEIVE  0x0001
583 
584 //
585 // If set, at least one transmit interrupt occurred.
586 //
587 #define PXE_STATFLAGS_GET_STATUS_TRANSMIT 0x0002
588 
589 //
590 // If set, at least one command interrupt occurred.
591 //
592 #define PXE_STATFLAGS_GET_STATUS_COMMAND  0x0004
593 
594 //
595 // If set, at least one software interrupt occurred.
596 //
597 #define PXE_STATFLAGS_GET_STATUS_SOFTWARE 0x0008
598 
599 //
600 // This flag is set if the transmitted buffer queue is empty.  This flag
601 // will be set if all transmitted buffer addresses get written into the DB.
602 //
603 #define PXE_STATFLAGS_GET_STATUS_TXBUF_QUEUE_EMPTY  0x0010
604 
605 //
606 // This flag is set if no transmitted buffer addresses were written
607 // into the DB.  (This could be because DBsize was too small.)
608 //
609 #define PXE_STATFLAGS_GET_STATUS_NO_TXBUFS_WRITTEN  0x0020
610 
611 //
612 // //////////////////////////////////////
613 // UNDI Fill Header
614 //
615 // No additional StatFlags
616 
617 ////////////////////////////////////////
618 // UNDI Transmit
619 //
620 // No additional StatFlags.
621 
622 ////////////////////////////////////////
623 // UNDI Receive
624 //
625 // No additional StatFlags.
626 //
627 typedef UINT16  PXE_STATCODE;
628 
629 #define PXE_STATCODE_INITIALIZE 0x0000
630 
631 //
632 // //////////////////////////////////////
633 // Common StatCodes returned by all UNDI commands, UNDI protocol functions
634 // and BC protocol functions.
635 //
636 #define PXE_STATCODE_SUCCESS              0x0000
637 
638 #define PXE_STATCODE_INVALID_CDB          0x0001
639 #define PXE_STATCODE_INVALID_CPB          0x0002
640 #define PXE_STATCODE_BUSY                 0x0003
641 #define PXE_STATCODE_QUEUE_FULL           0x0004
642 #define PXE_STATCODE_ALREADY_STARTED      0x0005
643 #define PXE_STATCODE_NOT_STARTED          0x0006
644 #define PXE_STATCODE_NOT_SHUTDOWN         0x0007
645 #define PXE_STATCODE_ALREADY_INITIALIZED  0x0008
646 #define PXE_STATCODE_NOT_INITIALIZED      0x0009
647 #define PXE_STATCODE_DEVICE_FAILURE       0x000A
648 #define PXE_STATCODE_NVDATA_FAILURE       0x000B
649 #define PXE_STATCODE_UNSUPPORTED          0x000C
650 #define PXE_STATCODE_BUFFER_FULL          0x000D
651 #define PXE_STATCODE_INVALID_PARAMETER    0x000E
652 #define PXE_STATCODE_INVALID_UNDI         0x000F
653 #define PXE_STATCODE_IPV4_NOT_SUPPORTED   0x0010
654 #define PXE_STATCODE_IPV6_NOT_SUPPORTED   0x0011
655 #define PXE_STATCODE_NOT_ENOUGH_MEMORY    0x0012
656 #define PXE_STATCODE_NO_DATA              0x0013
657 
658 typedef UINT16  PXE_IFNUM;
659 
660 //
661 // This interface number must be passed to the S/W UNDI Start command.
662 //
663 #define PXE_IFNUM_START 0x0000
664 
665 //
666 // This interface number is returned by the S/W UNDI Get State and
667 // Start commands if information in the CDB, CPB or DB is invalid.
668 //
669 #define PXE_IFNUM_INVALID 0x0000
670 
671 typedef UINT16  PXE_CONTROL;
672 
673 //
674 // Setting this flag directs the UNDI to queue this command for later
675 // execution if the UNDI is busy and it supports command queuing.
676 // If queuing is not supported, a PXE_STATCODE_INVALID_CONTROL error
677 // is returned.  If the queue is full, a PXE_STATCODE_CDB_QUEUE_FULL
678 // error is returned.
679 //
680 #define PXE_CONTROL_QUEUE_IF_BUSY 0x0002
681 
682 //
683 // These two bit values are used to determine if there are more UNDI
684 // CDB structures following this one.  If the link bit is set, there
685 // must be a CDB structure following this one.  Execution will start
686 // on the next CDB structure as soon as this one completes successfully.
687 // If an error is generated by this command, execution will stop.
688 //
689 #define PXE_CONTROL_LINK              0x0001
690 #define PXE_CONTROL_LAST_CDB_IN_LIST  0x0000
691 
692 typedef UINT8   PXE_FRAME_TYPE;
693 
694 #define PXE_FRAME_TYPE_NONE         0x00
695 #define PXE_FRAME_TYPE_UNICAST      0x01
696 #define PXE_FRAME_TYPE_BROADCAST    0x02
697 #define PXE_FRAME_TYPE_MULTICAST    0x03
698 #define PXE_FRAME_TYPE_PROMISCUOUS  0x04
699 
700 typedef UINT32  PXE_IPV4;
701 
702 typedef UINT32  PXE_IPV6[4];
703 #define PXE_MAC_LENGTH  32
704 
705 typedef UINT8   PXE_MAC_ADDR[PXE_MAC_LENGTH];
706 
707 typedef UINT8   PXE_IFTYPE;
708 typedef UINT16  PXE_MEDIA_PROTOCOL;
709 
710 //
711 // This information is from the ARP section of RFC 1700.
712 //
713 //     1 Ethernet (10Mb)                                    [JBP]
714 //     2 Experimental Ethernet (3Mb)                        [JBP]
715 //     3 Amateur Radio AX.25                                [PXK]
716 //     4 Proteon ProNET Token Ring                          [JBP]
717 //     5 Chaos                                              [GXP]
718 //     6 IEEE 802 Networks                                  [JBP]
719 //     7 ARCNET                                             [JBP]
720 //     8 Hyperchannel                                       [JBP]
721 //     9 Lanstar                                             [TU]
722 //    10 Autonet Short Address                             [MXB1]
723 //    11 LocalTalk                                         [JKR1]
724 //    12 LocalNet (IBM* PCNet or SYTEK* LocalNET)           [JXM]
725 //    13 Ultra link                                        [RXD2]
726 //    14 SMDS                                              [GXC1]
727 //    15 Frame Relay                                        [AGM]
728 //    16 Asynchronous Transmission Mode (ATM)              [JXB2]
729 //    17 HDLC                                               [JBP]
730 //    18 Fibre Channel                            [Yakov Rekhter]
731 //    19 Asynchronous Transmission Mode (ATM)      [Mark Laubach]
732 //    20 Serial Line                                        [JBP]
733 //    21 Asynchronous Transmission Mode (ATM)              [MXB1]
734 //
735 // * Other names and brands may be claimed as the property of others.
736 //
737 #define PXE_IFTYPE_ETHERNET       0x01
738 #define PXE_IFTYPE_TOKENRING      0x04
739 #define PXE_IFTYPE_FIBRE_CHANNEL  0x12
740 
741 typedef struct s_pxe_hw_undi {
742   UINT32  Signature;      // PXE_ROMID_SIGNATURE
743   UINT8   Len;            // sizeof(PXE_HW_UNDI)
744   UINT8   Fudge;          // makes 8-bit cksum equal zero
745   UINT8   Rev;            // PXE_ROMID_REV
746   UINT8   IFcnt;          // physical connector count
747   UINT8   MajorVer;       // PXE_ROMID_MAJORVER
748   UINT8   MinorVer;       // PXE_ROMID_MINORVER
749   UINT16  reserved;       // zero, not used
750   UINT32  Implementation; // implementation flags
751   // reserved             // vendor use
752   // UINT32 Status;       // status port
753   // UINT32 Command;      // command port
754   // UINT64 CDBaddr;      // CDB address port
755   //
756 } PXE_HW_UNDI;
757 
758 //
759 // Status port bit definitions
760 //
761 //
762 // UNDI operation state
763 //
764 #define PXE_HWSTAT_STATE_MASK   0xC0000000
765 #define PXE_HWSTAT_BUSY         0xC0000000
766 #define PXE_HWSTAT_INITIALIZED  0x80000000
767 #define PXE_HWSTAT_STARTED      0x40000000
768 #define PXE_HWSTAT_STOPPED      0x00000000
769 
770 //
771 // If set, last command failed
772 //
773 #define PXE_HWSTAT_COMMAND_FAILED 0x20000000
774 
775 //
776 // If set, identifies enabled receive filters
777 //
778 #define PXE_HWSTAT_PROMISCUOUS_MULTICAST_RX_ENABLED 0x00001000
779 #define PXE_HWSTAT_PROMISCUOUS_RX_ENABLED           0x00000800
780 #define PXE_HWSTAT_BROADCAST_RX_ENABLED             0x00000400
781 #define PXE_HWSTAT_MULTICAST_RX_ENABLED             0x00000200
782 #define PXE_HWSTAT_UNICAST_RX_ENABLED               0x00000100
783 
784 //
785 // If set, identifies enabled external interrupts
786 //
787 #define PXE_HWSTAT_SOFTWARE_INT_ENABLED     0x00000080
788 #define PXE_HWSTAT_TX_COMPLETE_INT_ENABLED  0x00000040
789 #define PXE_HWSTAT_PACKET_RX_INT_ENABLED    0x00000020
790 #define PXE_HWSTAT_CMD_COMPLETE_INT_ENABLED 0x00000010
791 
792 //
793 // If set, identifies pending interrupts
794 //
795 #define PXE_HWSTAT_SOFTWARE_INT_PENDING     0x00000008
796 #define PXE_HWSTAT_TX_COMPLETE_INT_PENDING  0x00000004
797 #define PXE_HWSTAT_PACKET_RX_INT_PENDING    0x00000002
798 #define PXE_HWSTAT_CMD_COMPLETE_INT_PENDING 0x00000001
799 
800 //
801 // Command port definitions
802 //
803 //
804 // If set, CDB identified in CDBaddr port is given to UNDI.
805 // If not set, other bits in this word will be processed.
806 //
807 #define PXE_HWCMD_ISSUE_COMMAND   0x80000000
808 #define PXE_HWCMD_INTS_AND_FILTS  0x00000000
809 
810 //
811 // Use these to enable/disable receive filters.
812 //
813 #define PXE_HWCMD_PROMISCUOUS_MULTICAST_RX_ENABLE 0x00001000
814 #define PXE_HWCMD_PROMISCUOUS_RX_ENABLE           0x00000800
815 #define PXE_HWCMD_BROADCAST_RX_ENABLE             0x00000400
816 #define PXE_HWCMD_MULTICAST_RX_ENABLE             0x00000200
817 #define PXE_HWCMD_UNICAST_RX_ENABLE               0x00000100
818 
819 //
820 // Use these to enable/disable external interrupts
821 //
822 #define PXE_HWCMD_SOFTWARE_INT_ENABLE     0x00000080
823 #define PXE_HWCMD_TX_COMPLETE_INT_ENABLE  0x00000040
824 #define PXE_HWCMD_PACKET_RX_INT_ENABLE    0x00000020
825 #define PXE_HWCMD_CMD_COMPLETE_INT_ENABLE 0x00000010
826 
827 //
828 // Use these to clear pending external interrupts
829 //
830 #define PXE_HWCMD_CLEAR_SOFTWARE_INT      0x00000008
831 #define PXE_HWCMD_CLEAR_TX_COMPLETE_INT   0x00000004
832 #define PXE_HWCMD_CLEAR_PACKET_RX_INT     0x00000002
833 #define PXE_HWCMD_CLEAR_CMD_COMPLETE_INT  0x00000001
834 
835 typedef struct s_pxe_sw_undi {
836   UINT32  Signature;      // PXE_ROMID_SIGNATURE
837   UINT8   Len;            // sizeof(PXE_SW_UNDI)
838   UINT8   Fudge;          // makes 8-bit cksum zero
839   UINT8   Rev;            // PXE_ROMID_REV
840   UINT8   IFcnt;          // physical connector count
841   UINT8   MajorVer;       // PXE_ROMID_MAJORVER
842   UINT8   MinorVer;       // PXE_ROMID_MINORVER
843   UINT16  reserved1;      // zero, not used
844   UINT32  Implementation; // Implementation flags
845   UINT64  EntryPoint;     // API entry point
846   UINT8   reserved2[3];   // zero, not used
847   UINT8   BusCnt;         // number of bustypes supported
848   UINT32  BusType[1];     // list of supported bustypes
849 } PXE_SW_UNDI;
850 
851 typedef union u_pxe_undi {
852   PXE_HW_UNDI hw;
853   PXE_SW_UNDI sw;
854 } PXE_UNDI;
855 
856 //
857 // Signature of !PXE structure
858 //
859 #define PXE_ROMID_SIGNATURE PXE_BUSTYPE ('!', 'P', 'X', 'E')
860 
861 //
862 // !PXE structure format revision
863 //
864 #define PXE_ROMID_REV 0x02
865 
866 //
867 // UNDI command interface revision.  These are the values that get sent
868 // in option 94 (Client Network Interface Identifier) in the DHCP Discover
869 // and PXE Boot Server Request packets.
870 //
871 #define PXE_ROMID_MAJORVER    0x03
872 #define PXE_ROMID_MINORVER    0x00
873 #define PXE_ROMID_MINORVER_31 0x10
874 
875 //
876 // Implementation flags
877 //
878 #define PXE_ROMID_IMP_HW_UNDI                             0x80000000
879 #define PXE_ROMID_IMP_SW_VIRT_ADDR                        0x40000000
880 #define PXE_ROMID_IMP_64BIT_DEVICE                        0x00010000
881 #define PXE_ROMID_IMP_FRAG_SUPPORTED                      0x00008000
882 #define PXE_ROMID_IMP_CMD_LINK_SUPPORTED                  0x00004000
883 #define PXE_ROMID_IMP_CMD_QUEUE_SUPPORTED                 0x00002000
884 #define PXE_ROMID_IMP_MULTI_FRAME_SUPPORTED               0x00001000
885 #define PXE_ROMID_IMP_NVDATA_SUPPORT_MASK                 0x00000C00
886 #define PXE_ROMID_IMP_NVDATA_BULK_WRITABLE                0x00000C00
887 #define PXE_ROMID_IMP_NVDATA_SPARSE_WRITABLE              0x00000800
888 #define PXE_ROMID_IMP_NVDATA_READ_ONLY                    0x00000400
889 #define PXE_ROMID_IMP_NVDATA_NOT_AVAILABLE                0x00000000
890 #define PXE_ROMID_IMP_STATISTICS_SUPPORTED                0x00000200
891 #define PXE_ROMID_IMP_STATION_ADDR_SETTABLE               0x00000100
892 #define PXE_ROMID_IMP_PROMISCUOUS_MULTICAST_RX_SUPPORTED  0x00000080
893 #define PXE_ROMID_IMP_PROMISCUOUS_RX_SUPPORTED            0x00000040
894 #define PXE_ROMID_IMP_BROADCAST_RX_SUPPORTED              0x00000020
895 #define PXE_ROMID_IMP_FILTERED_MULTICAST_RX_SUPPORTED     0x00000010
896 #define PXE_ROMID_IMP_SOFTWARE_INT_SUPPORTED              0x00000008
897 #define PXE_ROMID_IMP_TX_COMPLETE_INT_SUPPORTED           0x00000004
898 #define PXE_ROMID_IMP_PACKET_RX_INT_SUPPORTED             0x00000002
899 #define PXE_ROMID_IMP_CMD_COMPLETE_INT_SUPPORTED          0x00000001
900 
901 typedef struct s_pxe_cdb {
902   PXE_OPCODE    OpCode;
903   PXE_OPFLAGS   OpFlags;
904   UINT16        CPBsize;
905   UINT16        DBsize;
906   UINT64        CPBaddr;
907   UINT64        DBaddr;
908   PXE_STATCODE  StatCode;
909   PXE_STATFLAGS StatFlags;
910   UINT16        IFnum;
911   PXE_CONTROL   Control;
912 } PXE_CDB;
913 
914 typedef union u_pxe_ip_addr {
915   PXE_IPV6  IPv6;
916   PXE_IPV4  IPv4;
917 } PXE_IP_ADDR;
918 
919 typedef union pxe_device {
920   //
921   // PCI and PC Card NICs are both identified using bus, device
922   // and function numbers.  For PC Card, this may require PC
923   // Card services to be loaded in the BIOS or preboot
924   // environment.
925   //
926   struct {
927     //
928     // See S/W UNDI ROMID structure definition for PCI and
929     // PCC BusType definitions.
930     //
931     UINT32  BusType;
932 
933     //
934     // Bus, device & function numbers that locate this device.
935     //
936     UINT16  Bus;
937     UINT8   Device;
938     UINT8   Function;
939   }
940   PCI, PCC;
941 
942   //
943   // %%TBD - More information is needed about enumerating
944   // USB and 1394 devices.
945   //
946   struct {
947     UINT32  BusType;
948     UINT32  tdb;
949   }
950   USB, _1394;
951 } PXE_DEVICE;
952 
953 //
954 // cpb and db definitions
955 //
956 #define MAX_PCI_CONFIG_LEN    64  // # of dwords
957 #define MAX_EEPROM_LEN        128 // #of dwords
958 #define MAX_XMIT_BUFFERS      32  // recycling Q length for xmit_done
959 #define MAX_MCAST_ADDRESS_CNT 8
960 
961 typedef struct s_pxe_cpb_start {
962   //
963   // PXE_VOID Delay(UINTN microseconds);
964   //
965   // UNDI will never request a delay smaller than 10 microseconds
966   // and will always request delays in increments of 10 microseconds.
967   // The Delay() CallBack routine must delay between n and n + 10
968   // microseconds before returning control to the UNDI.
969   //
970   // This field cannot be set to zero.
971   //
972   UINT64  Delay;
973 
974   //
975   // PXE_VOID Block(UINT32 enable);
976   //
977   // UNDI may need to block multi-threaded/multi-processor access to
978   // critical code sections when programming or accessing the network
979   // device.  To this end, a blocking service is needed by the UNDI.
980   // When UNDI needs a block, it will call Block() passing a non-zero
981   // value.  When UNDI no longer needs a block, it will call Block()
982   // with a zero value.  When called, if the Block() is already enabled,
983   // do not return control to the UNDI until the previous Block() is
984   // disabled.
985   //
986   // This field cannot be set to zero.
987   //
988   UINT64  Block;
989 
990   //
991   // PXE_VOID Virt2Phys(UINT64 virtual, UINT64 physical_ptr);
992   //
993   // UNDI will pass the virtual address of a buffer and the virtual
994   // address of a 64-bit physical buffer.  Convert the virtual address
995   // to a physical address and write the result to the physical address
996   // buffer.  If virtual and physical addresses are the same, just
997   // copy the virtual address to the physical address buffer.
998   //
999   // This field can be set to zero if virtual and physical addresses
1000   // are equal.
1001   //
1002   UINT64  Virt2Phys;
1003   //
1004   // PXE_VOID Mem_IO(UINT8 read_write, UINT8 len, UINT64 port,
1005   //              UINT64 buf_addr);
1006   //
1007   // UNDI will read or write the device io space using this call back
1008   // function. It passes the number of bytes as the len parameter and it
1009   // will be either 1,2,4 or 8.
1010   //
1011   // This field can not be set to zero.
1012   //
1013   UINT64  Mem_IO;
1014 } PXE_CPB_START;
1015 
1016 typedef struct s_pxe_cpb_start_31 {
1017   //
1018   // PXE_VOID Delay(UINT64 UnqId, UINTN microseconds);
1019   //
1020   // UNDI will never request a delay smaller than 10 microseconds
1021   // and will always request delays in increments of 10 microseconds.
1022   // The Delay() CallBack routine must delay between n and n + 10
1023   // microseconds before returning control to the UNDI.
1024   //
1025   // This field cannot be set to zero.
1026   //
1027   UINT64  Delay;
1028 
1029   //
1030   // PXE_VOID Block(UINT64 unq_id, UINT32 enable);
1031   //
1032   // UNDI may need to block multi-threaded/multi-processor access to
1033   // critical code sections when programming or accessing the network
1034   // device.  To this end, a blocking service is needed by the UNDI.
1035   // When UNDI needs a block, it will call Block() passing a non-zero
1036   // value.  When UNDI no longer needs a block, it will call Block()
1037   // with a zero value.  When called, if the Block() is already enabled,
1038   // do not return control to the UNDI until the previous Block() is
1039   // disabled.
1040   //
1041   // This field cannot be set to zero.
1042   //
1043   UINT64  Block;
1044 
1045   //
1046   // PXE_VOID Virt2Phys(UINT64 UnqId, UINT64 virtual, UINT64 physical_ptr);
1047   //
1048   // UNDI will pass the virtual address of a buffer and the virtual
1049   // address of a 64-bit physical buffer.  Convert the virtual address
1050   // to a physical address and write the result to the physical address
1051   // buffer.  If virtual and physical addresses are the same, just
1052   // copy the virtual address to the physical address buffer.
1053   //
1054   // This field can be set to zero if virtual and physical addresses
1055   // are equal.
1056   //
1057   UINT64  Virt2Phys;
1058   //
1059   // PXE_VOID Mem_IO(UINT64 UnqId, UINT8 read_write, UINT8 len, UINT64 port,
1060   //              UINT64 buf_addr);
1061   //
1062   // UNDI will read or write the device io space using this call back
1063   // function. It passes the number of bytes as the len parameter and it
1064   // will be either 1,2,4 or 8.
1065   //
1066   // This field can not be set to zero.
1067   //
1068   UINT64  Mem_IO;
1069   //
1070   // PXE_VOID Map_Mem(UINT64 unq_id, UINT64 virtual_addr, UINT32 size,
1071   //                 UINT32 Direction, UINT64 mapped_addr);
1072   //
1073   // UNDI will pass the virtual address of a buffer, direction of the data
1074   // flow from/to the mapped buffer (the constants are defined below)
1075   // and a place holder (pointer) for the mapped address.
1076   // This call will Map the given address to a physical DMA address and write
1077   // the result to the mapped_addr pointer.  If there is no need to
1078   // map the given address to a lower address (i.e. the given address is
1079   // associated with a physical address that is already compatible to be
1080   // used with the DMA, it converts the given virtual address to it's
1081   // physical address and write that in the mapped address pointer.
1082   //
1083   // This field can be set to zero if there is no mapping service available
1084   //
1085   UINT64  Map_Mem;
1086 
1087   //
1088   // PXE_VOID UnMap_Mem(UINT64 unq_id, UINT64 virtual_addr, UINT32 size,
1089   //            UINT32 Direction, UINT64 mapped_addr);
1090   //
1091   // UNDI will pass the virtual and mapped addresses of a buffer
1092   // This call will un map the given address
1093   //
1094   // This field can be set to zero if there is no unmapping service available
1095   //
1096   UINT64  UnMap_Mem;
1097 
1098   //
1099   // PXE_VOID Sync_Mem(UINT64 unq_id, UINT64 virtual,
1100   //            UINT32 size, UINT32 Direction, UINT64 mapped_addr);
1101   //
1102   // UNDI will pass the virtual and mapped addresses of a buffer
1103   // This call will synchronize the contents of both the virtual and mapped
1104   // buffers for the given Direction.
1105   //
1106   // This field can be set to zero if there is no service available
1107   //
1108   UINT64  Sync_Mem;
1109 
1110   //
1111   // protocol driver can provide anything for this Unique_ID, UNDI remembers
1112   // that as just a 64bit value assocaited to the interface specified by
1113   // the ifnum and gives it back as a parameter to all the call-back routines
1114   // when calling for that interface!
1115   //
1116   UINT64  Unique_ID;
1117   //
1118 } PXE_CPB_START_31;
1119 
1120 #define TO_AND_FROM_DEVICE    0
1121 #define FROM_DEVICE           1
1122 #define TO_DEVICE             2
1123 
1124 #define PXE_DELAY_MILLISECOND 1000
1125 #define PXE_DELAY_SECOND      1000000
1126 #define PXE_IO_READ           0
1127 #define PXE_IO_WRITE          1
1128 #define PXE_MEM_READ          2
1129 #define PXE_MEM_WRITE         4
1130 
1131 typedef struct s_pxe_db_get_init_info {
1132   //
1133   // Minimum length of locked memory buffer that must be given to
1134   // the Initialize command. Giving UNDI more memory will generally
1135   // give better performance.
1136   //
1137   // If MemoryRequired is zero, the UNDI does not need and will not
1138   // use system memory to receive and transmit packets.
1139   //
1140   UINT32  MemoryRequired;
1141 
1142   //
1143   // Maximum frame data length for Tx/Rx excluding the media header.
1144   //
1145   UINT32  FrameDataLen;
1146 
1147   //
1148   // Supported link speeds are in units of mega bits.  Common ethernet
1149   // values are 10, 100 and 1000.  Unused LinkSpeeds[] entries are zero
1150   // filled.
1151   //
1152   UINT32  LinkSpeeds[4];
1153 
1154   //
1155   // Number of non-volatile storage items.
1156   //
1157   UINT32  NvCount;
1158 
1159   //
1160   // Width of non-volatile storage item in bytes.  0, 1, 2 or 4
1161   //
1162   UINT16  NvWidth;
1163 
1164   //
1165   // Media header length.  This is the typical media header length for
1166   // this UNDI.  This information is needed when allocating receive
1167   // and transmit buffers.
1168   //
1169   UINT16  MediaHeaderLen;
1170 
1171   //
1172   // Number of bytes in the NIC hardware (MAC) address.
1173   //
1174   UINT16  HWaddrLen;
1175 
1176   //
1177   // Maximum number of multicast MAC addresses in the multicast
1178   // MAC address filter list.
1179   //
1180   UINT16  MCastFilterCnt;
1181 
1182   //
1183   // Default number and size of transmit and receive buffers that will
1184   // be allocated by the UNDI.  If MemoryRequired is non-zero, this
1185   // allocation will come out of the memory buffer given to the Initialize
1186   // command.  If MemoryRequired is zero, this allocation will come out of
1187   // memory on the NIC.
1188   //
1189   UINT16  TxBufCnt;
1190   UINT16  TxBufSize;
1191   UINT16  RxBufCnt;
1192   UINT16  RxBufSize;
1193 
1194   //
1195   // Hardware interface types defined in the Assigned Numbers RFC
1196   // and used in DHCP and ARP packets.
1197   // See the PXE_IFTYPE typedef and PXE_IFTYPE_xxx macros.
1198   //
1199   UINT8   IFtype;
1200 
1201   //
1202   // Supported duplex.  See PXE_DUPLEX_xxxxx #defines below.
1203   //
1204   UINT8   Duplex;
1205 
1206   //
1207   // Supported loopback options.  See PXE_LOOPBACK_xxxxx #defines below.
1208   //
1209   UINT8   LoopBack;
1210 } PXE_DB_GET_INIT_INFO;
1211 
1212 #define PXE_MAX_TXRX_UNIT_ETHER           1500
1213 
1214 #define PXE_HWADDR_LEN_ETHER              0x0006
1215 #define PXE_MAC_HEADER_LEN_ETHER          0x000E
1216 
1217 #define PXE_DUPLEX_ENABLE_FULL_SUPPORTED  1
1218 #define PXE_DUPLEX_FORCE_FULL_SUPPORTED   2
1219 
1220 #define PXE_LOOPBACK_INTERNAL_SUPPORTED   1
1221 #define PXE_LOOPBACK_EXTERNAL_SUPPORTED   2
1222 
1223 typedef struct s_pxe_pci_config_info {
1224   //
1225   // This is the flag field for the PXE_DB_GET_CONFIG_INFO union.
1226   // For PCI bus devices, this field is set to PXE_BUSTYPE_PCI.
1227   //
1228   UINT32  BusType;
1229 
1230   //
1231   // This identifies the PCI network device that this UNDI interface
1232   // is bound to.
1233   //
1234   UINT16  Bus;
1235   UINT8   Device;
1236   UINT8   Function;
1237 
1238   //
1239   // This is a copy of the PCI configuration space for this
1240   // network device.
1241   //
1242   union {
1243     UINT8   Byte[256];
1244     UINT16  Word[128];
1245     UINT32  Dword[64];
1246   } Config;
1247 } PXE_PCI_CONFIG_INFO;
1248 
1249 typedef struct s_pxe_pcc_config_info {
1250   //
1251   // This is the flag field for the PXE_DB_GET_CONFIG_INFO union.
1252   // For PCC bus devices, this field is set to PXE_BUSTYPE_PCC.
1253   //
1254   UINT32  BusType;
1255 
1256   //
1257   // This identifies the PCC network device that this UNDI interface
1258   // is bound to.
1259   //
1260   UINT16  Bus;
1261   UINT8   Device;
1262   UINT8   Function;
1263 
1264   //
1265   // This is a copy of the PCC configuration space for this
1266   // network device.
1267   //
1268   union {
1269     UINT8   Byte[256];
1270     UINT16  Word[128];
1271     UINT32  Dword[64];
1272   } Config;
1273 } PXE_PCC_CONFIG_INFO;
1274 
1275 typedef struct s_pxe_usb_config_info {
1276   UINT32  BusType;
1277   //
1278   // %%TBD What should we return here...
1279   //
1280 } PXE_USB_CONFIG_INFO;
1281 
1282 typedef struct s_pxe_1394_config_info {
1283   UINT32  BusType;
1284   //
1285   // %%TBD What should we return here...
1286   //
1287 } PXE_1394_CONFIG_INFO;
1288 
1289 typedef union u_pxe_db_get_config_info {
1290   PXE_PCI_CONFIG_INFO   pci;
1291   PXE_PCC_CONFIG_INFO   pcc;
1292   PXE_USB_CONFIG_INFO   usb;
1293   PXE_1394_CONFIG_INFO  _1394;
1294 } PXE_DB_GET_CONFIG_INFO;
1295 
1296 typedef struct s_pxe_cpb_initialize {
1297   //
1298   // Address of first (lowest) byte of the memory buffer.  This buffer must
1299   // be in contiguous physical memory and cannot be swapped out.  The UNDI
1300   // will be using this for transmit and receive buffering.
1301   //
1302   UINT64  MemoryAddr;
1303 
1304   //
1305   // MemoryLength must be greater than or equal to MemoryRequired
1306   // returned by the Get Init Info command.
1307   //
1308   UINT32  MemoryLength;
1309 
1310   //
1311   // Desired link speed in Mbit/sec.  Common ethernet values are 10, 100
1312   // and 1000.  Setting a value of zero will auto-detect and/or use the
1313   // default link speed (operation depends on UNDI/NIC functionality).
1314   //
1315   UINT32  LinkSpeed;
1316 
1317   //
1318   // Suggested number and size of receive and transmit buffers to
1319   // allocate.  If MemoryAddr and MemoryLength are non-zero, this
1320   // allocation comes out of the supplied memory buffer.  If MemoryAddr
1321   // and MemoryLength are zero, this allocation comes out of memory
1322   // on the NIC.
1323   //
1324   // If these fields are set to zero, the UNDI will allocate buffer
1325   // counts and sizes as it sees fit.
1326   //
1327   UINT16  TxBufCnt;
1328   UINT16  TxBufSize;
1329   UINT16  RxBufCnt;
1330   UINT16  RxBufSize;
1331 
1332   //
1333   // The following configuration parameters are optional and must be zero
1334   // to use the default values.
1335   //
1336   UINT8   Duplex;
1337 
1338   UINT8   LoopBack;
1339 } PXE_CPB_INITIALIZE;
1340 
1341 #define PXE_DUPLEX_DEFAULT      0x00
1342 #define PXE_FORCE_FULL_DUPLEX   0x01
1343 #define PXE_ENABLE_FULL_DUPLEX  0x02
1344 #define PXE_FORCE_HALF_DUPLEX   0x04
1345 #define PXE_DISABLE_FULL_DUPLEX 0x08
1346 
1347 #define LOOPBACK_NORMAL         0
1348 #define LOOPBACK_INTERNAL       1
1349 #define LOOPBACK_EXTERNAL       2
1350 
1351 typedef struct s_pxe_db_initialize {
1352   //
1353   // Actual amount of memory used from the supplied memory buffer.  This
1354   // may be less that the amount of memory suppllied and may be zero if
1355   // the UNDI and network device do not use external memory buffers.
1356   //
1357   // Memory used by the UNDI and network device is allocated from the
1358   // lowest memory buffer address.
1359   //
1360   UINT32  MemoryUsed;
1361 
1362   //
1363   // Actual number and size of receive and transmit buffers that were
1364   // allocated.
1365   //
1366   UINT16  TxBufCnt;
1367   UINT16  TxBufSize;
1368   UINT16  RxBufCnt;
1369   UINT16  RxBufSize;
1370 } PXE_DB_INITIALIZE;
1371 
1372 typedef struct s_pxe_cpb_receive_filters {
1373   //
1374   // List of multicast MAC addresses.  This list, if present, will
1375   // replace the existing multicast MAC address filter list.
1376   //
1377   PXE_MAC_ADDR  MCastList[MAX_MCAST_ADDRESS_CNT];
1378 } PXE_CPB_RECEIVE_FILTERS;
1379 
1380 typedef struct s_pxe_db_receive_filters {
1381   //
1382   // Filtered multicast MAC address list.
1383   //
1384   PXE_MAC_ADDR  MCastList[MAX_MCAST_ADDRESS_CNT];
1385 } PXE_DB_RECEIVE_FILTERS;
1386 
1387 typedef struct s_pxe_cpb_station_address {
1388   //
1389   // If supplied and supported, the current station MAC address
1390   // will be changed.
1391   //
1392   PXE_MAC_ADDR  StationAddr;
1393 } PXE_CPB_STATION_ADDRESS;
1394 
1395 typedef struct s_pxe_dpb_station_address {
1396   //
1397   // Current station MAC address.
1398   //
1399   PXE_MAC_ADDR  StationAddr;
1400 
1401   //
1402   // Station broadcast MAC address.
1403   //
1404   PXE_MAC_ADDR  BroadcastAddr;
1405 
1406   //
1407   // Permanent station MAC address.
1408   //
1409   PXE_MAC_ADDR  PermanentAddr;
1410 } PXE_DB_STATION_ADDRESS;
1411 
1412 typedef struct s_pxe_db_statistics {
1413   //
1414   // Bit field identifying what statistic data is collected by the
1415   // UNDI/NIC.
1416   // If bit 0x00 is set, Data[0x00] is collected.
1417   // If bit 0x01 is set, Data[0x01] is collected.
1418   // If bit 0x20 is set, Data[0x20] is collected.
1419   // If bit 0x21 is set, Data[0x21] is collected.
1420   // Etc.
1421   //
1422   UINT64  Supported;
1423 
1424   //
1425   // Statistic data.
1426   //
1427   UINT64  Data[64];
1428 } PXE_DB_STATISTICS;
1429 
1430 //
1431 // Total number of frames received.  Includes frames with errors and
1432 // dropped frames.
1433 //
1434 #define PXE_STATISTICS_RX_TOTAL_FRAMES  0x00
1435 
1436 //
1437 // Number of valid frames received and copied into receive buffers.
1438 //
1439 #define PXE_STATISTICS_RX_GOOD_FRAMES 0x01
1440 
1441 //
1442 // Number of frames below the minimum length for the media.
1443 // This would be <64 for ethernet.
1444 //
1445 #define PXE_STATISTICS_RX_UNDERSIZE_FRAMES  0x02
1446 
1447 //
1448 // Number of frames longer than the maxminum length for the
1449 // media.  This would be >1500 for ethernet.
1450 //
1451 #define PXE_STATISTICS_RX_OVERSIZE_FRAMES 0x03
1452 
1453 //
1454 // Valid frames that were dropped because receive buffers were full.
1455 //
1456 #define PXE_STATISTICS_RX_DROPPED_FRAMES  0x04
1457 
1458 //
1459 // Number of valid unicast frames received and not dropped.
1460 //
1461 #define PXE_STATISTICS_RX_UNICAST_FRAMES  0x05
1462 
1463 //
1464 // Number of valid broadcast frames received and not dropped.
1465 //
1466 #define PXE_STATISTICS_RX_BROADCAST_FRAMES  0x06
1467 
1468 //
1469 // Number of valid mutlicast frames received and not dropped.
1470 //
1471 #define PXE_STATISTICS_RX_MULTICAST_FRAMES  0x07
1472 
1473 //
1474 // Number of frames w/ CRC or alignment errors.
1475 //
1476 #define PXE_STATISTICS_RX_CRC_ERROR_FRAMES  0x08
1477 
1478 //
1479 // Total number of bytes received.  Includes frames with errors
1480 // and dropped frames.
1481 //
1482 #define PXE_STATISTICS_RX_TOTAL_BYTES 0x09
1483 
1484 //
1485 // Transmit statistics.
1486 //
1487 #define PXE_STATISTICS_TX_TOTAL_FRAMES      0x0A
1488 #define PXE_STATISTICS_TX_GOOD_FRAMES       0x0B
1489 #define PXE_STATISTICS_TX_UNDERSIZE_FRAMES  0x0C
1490 #define PXE_STATISTICS_TX_OVERSIZE_FRAMES   0x0D
1491 #define PXE_STATISTICS_TX_DROPPED_FRAMES    0x0E
1492 #define PXE_STATISTICS_TX_UNICAST_FRAMES    0x0F
1493 #define PXE_STATISTICS_TX_BROADCAST_FRAMES  0x10
1494 #define PXE_STATISTICS_TX_MULTICAST_FRAMES  0x11
1495 #define PXE_STATISTICS_TX_CRC_ERROR_FRAMES  0x12
1496 #define PXE_STATISTICS_TX_TOTAL_BYTES       0x13
1497 
1498 //
1499 // Number of collisions detection on this subnet.
1500 //
1501 #define PXE_STATISTICS_COLLISIONS 0x14
1502 
1503 //
1504 // Number of frames destined for unsupported protocol.
1505 //
1506 #define PXE_STATISTICS_UNSUPPORTED_PROTOCOL 0x15
1507 
1508 typedef struct s_pxe_cpb_mcast_ip_to_mac {
1509   //
1510   // Multicast IP address to be converted to multicast MAC address.
1511   //
1512   PXE_IP_ADDR IP;
1513 } PXE_CPB_MCAST_IP_TO_MAC;
1514 
1515 typedef struct s_pxe_db_mcast_ip_to_mac {
1516   //
1517   // Multicast MAC address.
1518   //
1519   PXE_MAC_ADDR  MAC;
1520 } PXE_DB_MCAST_IP_TO_MAC;
1521 
1522 typedef struct s_pxe_cpb_nvdata_sparse {
1523   //
1524   // NvData item list.  Only items in this list will be updated.
1525   //
1526   struct {
1527     //
1528     //  Non-volatile storage address to be changed.
1529     //
1530     UINT32  Addr;
1531 
1532     //
1533     // Data item to write into above storage address.
1534     //
1535     union {
1536       UINT8   Byte;
1537       UINT16  Word;
1538       UINT32  Dword;
1539     } Data;
1540   } Item[MAX_EEPROM_LEN];
1541 }
1542 PXE_CPB_NVDATA_SPARSE;
1543 
1544 //
1545 // When using bulk update, the size of the CPB structure must be
1546 // the same size as the non-volatile NIC storage.
1547 //
1548 typedef union u_pxe_cpb_nvdata_bulk {
1549   //
1550   // Array of byte-wide data items.
1551   //
1552   UINT8   Byte[MAX_EEPROM_LEN << 2];
1553 
1554   //
1555   // Array of word-wide data items.
1556   //
1557   UINT16  Word[MAX_EEPROM_LEN << 1];
1558 
1559   //
1560   // Array of dword-wide data items.
1561   //
1562   UINT32  Dword[MAX_EEPROM_LEN];
1563 } PXE_CPB_NVDATA_BULK;
1564 
1565 typedef struct s_pxe_db_nvdata {
1566   //
1567   // Arrays of data items from non-volatile storage.
1568   //
1569   union {
1570     //
1571     // Array of byte-wide data items.
1572     //
1573     UINT8   Byte[MAX_EEPROM_LEN << 2];
1574 
1575     //
1576     // Array of word-wide data items.
1577     //
1578     UINT16  Word[MAX_EEPROM_LEN << 1];
1579 
1580     //
1581     // Array of dword-wide data items.
1582     //
1583     UINT32  Dword[MAX_EEPROM_LEN];
1584   } Data;
1585 } PXE_DB_NVDATA;
1586 
1587 typedef struct s_pxe_db_get_status {
1588   //
1589   // Length of next receive frame (header + data).  If this is zero,
1590   // there is no next receive frame available.
1591   //
1592   UINT32  RxFrameLen;
1593 
1594   //
1595   // Reserved, set to zero.
1596   //
1597   UINT32  reserved;
1598 
1599   //
1600   //  Addresses of transmitted buffers that need to be recycled.
1601   //
1602   UINT64  TxBuffer[MAX_XMIT_BUFFERS];
1603 } PXE_DB_GET_STATUS;
1604 
1605 typedef struct s_pxe_cpb_fill_header {
1606   //
1607   // Source and destination MAC addresses.  These will be copied into
1608   // the media header without doing byte swapping.
1609   //
1610   PXE_MAC_ADDR  SrcAddr;
1611   PXE_MAC_ADDR  DestAddr;
1612 
1613   //
1614   // Address of first byte of media header.  The first byte of packet data
1615   // follows the last byte of the media header.
1616   //
1617   UINT64        MediaHeader;
1618 
1619   //
1620   // Length of packet data in bytes (not including the media header).
1621   //
1622   UINT32        PacketLen;
1623 
1624   //
1625   // Protocol type.  This will be copied into the media header without
1626   // doing byte swapping.  Protocol type numbers can be obtained from
1627   // the Assigned Numbers RFC 1700.
1628   //
1629   UINT16        Protocol;
1630 
1631   //
1632   // Length of the media header in bytes.
1633   //
1634   UINT16        MediaHeaderLen;
1635 } PXE_CPB_FILL_HEADER;
1636 
1637 #define PXE_PROTOCOL_ETHERNET_IP  0x0800
1638 #define PXE_PROTOCOL_ETHERNET_ARP 0x0806
1639 #define MAX_XMIT_FRAGMENTS        16
1640 
1641 typedef struct s_pxe_cpb_fill_header_fragmented {
1642   //
1643   // Source and destination MAC addresses.  These will be copied into
1644   // the media header without doing byte swapping.
1645   //
1646   PXE_MAC_ADDR        SrcAddr;
1647   PXE_MAC_ADDR        DestAddr;
1648 
1649   //
1650   // Length of packet data in bytes (not including the media header).
1651   //
1652   UINT32              PacketLen;
1653 
1654   //
1655   // Protocol type.  This will be copied into the media header without
1656   // doing byte swapping.  Protocol type numbers can be obtained from
1657   // the Assigned Numbers RFC 1700.
1658   //
1659   PXE_MEDIA_PROTOCOL  Protocol;
1660 
1661   //
1662   // Length of the media header in bytes.
1663   //
1664   UINT16              MediaHeaderLen;
1665 
1666   //
1667   // Number of packet fragment descriptors.
1668   //
1669   UINT16              FragCnt;
1670 
1671   //
1672   // Reserved, must be set to zero.
1673   //
1674   UINT16              reserved;
1675 
1676   //
1677   // Array of packet fragment descriptors.  The first byte of the media
1678   // header is the first byte of the first fragment.
1679   //
1680   struct {
1681     //
1682     // Address of this packet fragment.
1683     //
1684     UINT64  FragAddr;
1685 
1686     //
1687     // Length of this packet fragment.
1688     //
1689     UINT32  FragLen;
1690 
1691     //
1692     // Reserved, must be set to zero.
1693     //
1694     UINT32  reserved;
1695   } FragDesc[MAX_XMIT_FRAGMENTS];
1696 }
1697 PXE_CPB_FILL_HEADER_FRAGMENTED;
1698 
1699 typedef struct s_pxe_cpb_transmit {
1700   //
1701   // Address of first byte of frame buffer.  This is also the first byte
1702   // of the media header.
1703   //
1704   UINT64  FrameAddr;
1705 
1706   //
1707   // Length of the data portion of the frame buffer in bytes.  Do not
1708   // include the length of the media header.
1709   //
1710   UINT32  DataLen;
1711 
1712   //
1713   // Length of the media header in bytes.
1714   //
1715   UINT16  MediaheaderLen;
1716 
1717   //
1718   // Reserved, must be zero.
1719   //
1720   UINT16  reserved;
1721 } PXE_CPB_TRANSMIT;
1722 
1723 typedef struct s_pxe_cpb_transmit_fragments {
1724   //
1725   // Length of packet data in bytes (not including the media header).
1726   //
1727   UINT32  FrameLen;
1728 
1729   //
1730   // Length of the media header in bytes.
1731   //
1732   UINT16  MediaheaderLen;
1733 
1734   //
1735   // Number of packet fragment descriptors.
1736   //
1737   UINT16  FragCnt;
1738 
1739   //
1740   // Array of frame fragment descriptors.  The first byte of the first
1741   // fragment is also the first byte of the media header.
1742   //
1743   struct {
1744     //
1745     // Address of this frame fragment.
1746     //
1747     UINT64  FragAddr;
1748 
1749     //
1750     // Length of this frame fragment.
1751     //
1752     UINT32  FragLen;
1753 
1754     //
1755     // Reserved, must be set to zero.
1756     //
1757     UINT32  reserved;
1758   } FragDesc[MAX_XMIT_FRAGMENTS];
1759 }
1760 PXE_CPB_TRANSMIT_FRAGMENTS;
1761 
1762 typedef struct s_pxe_cpb_receive {
1763   //
1764   // Address of first byte of receive buffer.  This is also the first byte
1765   // of the frame header.
1766   //
1767   UINT64  BufferAddr;
1768 
1769   //
1770   // Length of receive buffer.  This must be large enough to hold the
1771   // received frame (media header + data).  If the length of smaller than
1772   // the received frame, data will be lost.
1773   //
1774   UINT32  BufferLen;
1775 
1776   //
1777   // Reserved, must be set to zero.
1778   //
1779   UINT32  reserved;
1780 } PXE_CPB_RECEIVE;
1781 
1782 typedef struct s_pxe_db_receive {
1783   //
1784   // Source and destination MAC addresses from media header.
1785   //
1786   PXE_MAC_ADDR        SrcAddr;
1787   PXE_MAC_ADDR        DestAddr;
1788 
1789   //
1790   // Length of received frame.  May be larger than receive buffer size.
1791   // The receive buffer will not be overwritten.  This is how to tell
1792   // if data was lost because the receive buffer was too small.
1793   //
1794   UINT32              FrameLen;
1795 
1796   //
1797   // Protocol type from media header.
1798   //
1799   PXE_MEDIA_PROTOCOL  Protocol;
1800 
1801   //
1802   // Length of media header in received frame.
1803   //
1804   UINT16              MediaHeaderLen;
1805 
1806   //
1807   // Type of receive frame.
1808   //
1809   PXE_FRAME_TYPE      Type;
1810 
1811   //
1812   // Reserved, must be zero.
1813   //
1814   UINT8               reserved[7];
1815 
1816 } PXE_DB_RECEIVE;
1817 
1818 #pragma pack()
1819 
1820 #endif
1821