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
6Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
7SPDX-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
58#define PXE_CPBSIZE_NOT_USED  0               ///< zero
59#define PXE_DBSIZE_NOT_USED   0               ///< zero
60#define PXE_CPBADDR_NOT_USED  (PXE_UINT64) 0  ///< zero
61#define PXE_DBADDR_NOT_USED   (PXE_UINT64) 0  ///< zero
62#define PXE_CONST             CONST
63
64#define PXE_VOLATILE          volatile
65
66typedef VOID           PXE_VOID;
67typedef UINT8          PXE_UINT8;
68typedef UINT16         PXE_UINT16;
69typedef UINT32         PXE_UINT32;
70typedef UINTN          PXE_UINTN;
71
72///
73/// Typedef unsigned long PXE_UINT64.
74///
75typedef UINT64      PXE_UINT64;
76
77typedef PXE_UINT8 PXE_BOOL;
78#define PXE_FALSE 0            ///< zero
79#define PXE_TRUE  (!PXE_FALSE)
80
81typedef PXE_UINT16      PXE_OPCODE;
82
83///
84/// Return UNDI operational state.
85///
86#define PXE_OPCODE_GET_STATE  0x0000
87
88///
89/// Change UNDI operational state from Stopped to Started.
90///
91#define PXE_OPCODE_START  0x0001
92
93///
94/// Change UNDI operational state from Started to Stopped.
95///
96#define PXE_OPCODE_STOP 0x0002
97
98///
99/// Get UNDI initialization information.
100///
101#define PXE_OPCODE_GET_INIT_INFO  0x0003
102
103///
104/// Get NIC configuration information.
105///
106#define PXE_OPCODE_GET_CONFIG_INFO  0x0004
107
108///
109/// Changed UNDI operational state from Started to Initialized.
110///
111#define PXE_OPCODE_INITIALIZE 0x0005
112
113///
114/// Re-initialize the NIC H/W.
115///
116#define PXE_OPCODE_RESET  0x0006
117
118///
119/// Change the UNDI operational state from Initialized to Started.
120///
121#define PXE_OPCODE_SHUTDOWN 0x0007
122
123///
124/// Read & change state of external interrupt enables.
125///
126#define PXE_OPCODE_INTERRUPT_ENABLES  0x0008
127
128///
129/// Read & change state of packet receive filters.
130///
131#define PXE_OPCODE_RECEIVE_FILTERS  0x0009
132
133///
134/// Read & change station MAC address.
135///
136#define PXE_OPCODE_STATION_ADDRESS  0x000A
137
138///
139/// Read traffic statistics.
140///
141#define PXE_OPCODE_STATISTICS 0x000B
142
143///
144/// Convert multicast IP address to multicast MAC address.
145///
146#define PXE_OPCODE_MCAST_IP_TO_MAC  0x000C
147
148///
149/// Read or change non-volatile storage on the NIC.
150///
151#define PXE_OPCODE_NVDATA 0x000D
152
153///
154/// Get & clear interrupt status.
155///
156#define PXE_OPCODE_GET_STATUS 0x000E
157
158///
159/// Fill media header in packet for transmit.
160///
161#define PXE_OPCODE_FILL_HEADER  0x000F
162
163///
164/// Transmit packet(s).
165///
166#define PXE_OPCODE_TRANSMIT 0x0010
167
168///
169/// Receive packet.
170///
171#define PXE_OPCODE_RECEIVE  0x0011
172
173///
174/// Last valid PXE UNDI OpCode number.
175///
176#define PXE_OPCODE_LAST_VALID 0x0011
177
178typedef PXE_UINT16  PXE_OPFLAGS;
179
180#define PXE_OPFLAGS_NOT_USED  0x0000
181
182//
183// //////////////////////////////////////
184// UNDI Get State
185//
186// No OpFlags
187
188////////////////////////////////////////
189// UNDI Start
190//
191// No OpFlags
192
193////////////////////////////////////////
194// UNDI Stop
195//
196// No OpFlags
197
198////////////////////////////////////////
199// UNDI Get Init Info
200//
201// No Opflags
202
203////////////////////////////////////////
204// UNDI Get Config Info
205//
206// No Opflags
207
208///
209/// UNDI Initialize
210///
211#define PXE_OPFLAGS_INITIALIZE_CABLE_DETECT_MASK    0x0001
212#define PXE_OPFLAGS_INITIALIZE_DETECT_CABLE         0x0000
213#define PXE_OPFLAGS_INITIALIZE_DO_NOT_DETECT_CABLE  0x0001
214
215///
216///
217/// UNDI Reset
218///
219#define PXE_OPFLAGS_RESET_DISABLE_INTERRUPTS  0x0001
220#define PXE_OPFLAGS_RESET_DISABLE_FILTERS     0x0002
221
222///
223/// UNDI Shutdown.
224///
225/// No OpFlags.
226
227///
228/// UNDI Interrupt Enables.
229///
230///
231/// Select whether to enable or disable external interrupt signals.
232/// Setting both enable and disable will return PXE_STATCODE_INVALID_OPFLAGS.
233///
234#define PXE_OPFLAGS_INTERRUPT_OPMASK  0xC000
235#define PXE_OPFLAGS_INTERRUPT_ENABLE  0x8000
236#define PXE_OPFLAGS_INTERRUPT_DISABLE 0x4000
237#define PXE_OPFLAGS_INTERRUPT_READ    0x0000
238
239///
240/// Enable receive interrupts.  An external interrupt will be generated
241/// after a complete non-error packet has been received.
242///
243#define PXE_OPFLAGS_INTERRUPT_RECEIVE 0x0001
244
245///
246/// Enable transmit interrupts.  An external interrupt will be generated
247/// after a complete non-error packet has been transmitted.
248///
249#define PXE_OPFLAGS_INTERRUPT_TRANSMIT  0x0002
250
251///
252/// Enable command interrupts.  An external interrupt will be generated
253/// when command execution stops.
254///
255#define PXE_OPFLAGS_INTERRUPT_COMMAND 0x0004
256
257///
258/// Generate software interrupt.  Setting this bit generates an external
259/// interrupt, if it is supported by the hardware.
260///
261#define PXE_OPFLAGS_INTERRUPT_SOFTWARE  0x0008
262
263///
264/// UNDI Receive Filters.
265///
266///
267/// Select whether to enable or disable receive filters.
268/// Setting both enable and disable will return PXE_STATCODE_INVALID_OPCODE.
269///
270#define PXE_OPFLAGS_RECEIVE_FILTER_OPMASK   0xC000
271#define PXE_OPFLAGS_RECEIVE_FILTER_ENABLE   0x8000
272#define PXE_OPFLAGS_RECEIVE_FILTER_DISABLE  0x4000
273#define PXE_OPFLAGS_RECEIVE_FILTER_READ     0x0000
274
275///
276/// To reset the contents of the multicast MAC address filter list,
277/// set this OpFlag:
278///
279#define PXE_OPFLAGS_RECEIVE_FILTER_RESET_MCAST_LIST 0x2000
280
281///
282/// Enable unicast packet receiving.  Packets sent to the current station
283/// MAC address will be received.
284///
285#define PXE_OPFLAGS_RECEIVE_FILTER_UNICAST  0x0001
286
287///
288/// Enable broadcast packet receiving.  Packets sent to the broadcast
289/// MAC address will be received.
290///
291#define PXE_OPFLAGS_RECEIVE_FILTER_BROADCAST  0x0002
292
293///
294/// Enable filtered multicast packet receiving.  Packets sent to any
295/// of the multicast MAC addresses in the multicast MAC address filter
296/// list will be received.  If the filter list is empty, no multicast
297///
298#define PXE_OPFLAGS_RECEIVE_FILTER_FILTERED_MULTICAST 0x0004
299
300///
301/// Enable promiscuous packet receiving.  All packets will be received.
302///
303#define PXE_OPFLAGS_RECEIVE_FILTER_PROMISCUOUS  0x0008
304
305///
306/// Enable promiscuous multicast packet receiving.  All multicast
307/// packets will be received.
308///
309#define PXE_OPFLAGS_RECEIVE_FILTER_ALL_MULTICAST  0x0010
310
311///
312/// UNDI Station Address.
313///
314#define PXE_OPFLAGS_STATION_ADDRESS_READ   0x0000
315#define PXE_OPFLAGS_STATION_ADDRESS_WRITE  0x0000
316#define PXE_OPFLAGS_STATION_ADDRESS_RESET  0x0001
317
318///
319/// UNDI Statistics.
320///
321#define PXE_OPFLAGS_STATISTICS_READ   0x0000
322#define PXE_OPFLAGS_STATISTICS_RESET  0x0001
323
324///
325/// UNDI MCast IP to MAC.
326///
327///
328/// Identify the type of IP address in the CPB.
329///
330#define PXE_OPFLAGS_MCAST_IP_TO_MAC_OPMASK  0x0003
331#define PXE_OPFLAGS_MCAST_IPV4_TO_MAC       0x0000
332#define PXE_OPFLAGS_MCAST_IPV6_TO_MAC       0x0001
333
334///
335/// UNDI NvData.
336///
337///
338/// Select the type of non-volatile data operation.
339///
340#define PXE_OPFLAGS_NVDATA_OPMASK 0x0001
341#define PXE_OPFLAGS_NVDATA_READ   0x0000
342#define PXE_OPFLAGS_NVDATA_WRITE  0x0001
343
344///
345/// UNDI Get Status.
346///
347///
348/// Return current interrupt status.  This will also clear any interrupts
349/// that are currently set.  This can be used in a polling routine.  The
350/// interrupt flags are still set and cleared even when the interrupts
351/// are disabled.
352///
353#define PXE_OPFLAGS_GET_INTERRUPT_STATUS  0x0001
354
355///
356/// Return list of transmitted buffers for recycling.  Transmit buffers
357/// must not be changed or unallocated until they have recycled.  After
358/// issuing a transmit command, wait for a transmit complete interrupt.
359/// When a transmit complete interrupt is received, read the transmitted
360/// buffers.  Do not plan on getting one buffer per interrupt.  Some
361/// NICs and UNDIs may transmit multiple buffers per interrupt.
362///
363#define PXE_OPFLAGS_GET_TRANSMITTED_BUFFERS 0x0002
364
365///
366/// Return current media status.
367///
368#define PXE_OPFLAGS_GET_MEDIA_STATUS    0x0004
369
370///
371/// UNDI Fill Header.
372///
373#define PXE_OPFLAGS_FILL_HEADER_OPMASK      0x0001
374#define PXE_OPFLAGS_FILL_HEADER_FRAGMENTED  0x0001
375#define PXE_OPFLAGS_FILL_HEADER_WHOLE       0x0000
376
377///
378/// UNDI Transmit.
379///
380///
381/// S/W UNDI only.  Return after the packet has been transmitted.  A
382/// transmit complete interrupt will still be generated and the transmit
383/// buffer will have to be recycled.
384///
385#define PXE_OPFLAGS_SWUNDI_TRANSMIT_OPMASK  0x0001
386#define PXE_OPFLAGS_TRANSMIT_BLOCK          0x0001
387#define PXE_OPFLAGS_TRANSMIT_DONT_BLOCK     0x0000
388
389#define PXE_OPFLAGS_TRANSMIT_OPMASK     0x0002
390#define PXE_OPFLAGS_TRANSMIT_FRAGMENTED 0x0002
391#define PXE_OPFLAGS_TRANSMIT_WHOLE      0x0000
392
393///
394/// UNDI Receive.
395///
396/// No OpFlags.
397///
398
399///
400/// PXE STATFLAGS.
401///
402typedef PXE_UINT16  PXE_STATFLAGS;
403
404#define PXE_STATFLAGS_INITIALIZE  0x0000
405
406///
407/// Common StatFlags that can be returned by all commands.
408///
409///
410/// The COMMAND_COMPLETE and COMMAND_FAILED status flags must be
411/// implemented by all UNDIs.  COMMAND_QUEUED is only needed by UNDIs
412/// that support command queuing.
413///
414#define PXE_STATFLAGS_STATUS_MASK       0xC000
415#define PXE_STATFLAGS_COMMAND_COMPLETE  0xC000
416#define PXE_STATFLAGS_COMMAND_FAILED    0x8000
417#define PXE_STATFLAGS_COMMAND_QUEUED    0x4000
418
419///
420/// UNDI Get State.
421///
422#define PXE_STATFLAGS_GET_STATE_MASK        0x0003
423#define PXE_STATFLAGS_GET_STATE_INITIALIZED 0x0002
424#define PXE_STATFLAGS_GET_STATE_STARTED     0x0001
425#define PXE_STATFLAGS_GET_STATE_STOPPED     0x0000
426
427///
428/// UNDI Start.
429///
430/// No additional StatFlags.
431///
432
433///
434/// UNDI Get Init Info.
435///
436#define PXE_STATFLAGS_CABLE_DETECT_MASK           0x0001
437#define PXE_STATFLAGS_CABLE_DETECT_NOT_SUPPORTED  0x0000
438#define PXE_STATFLAGS_CABLE_DETECT_SUPPORTED      0x0001
439
440#define PXE_STATFLAGS_GET_STATUS_NO_MEDIA_MASK           0x0002
441#define PXE_STATFLAGS_GET_STATUS_NO_MEDIA_NOT_SUPPORTED  0x0000
442#define PXE_STATFLAGS_GET_STATUS_NO_MEDIA_SUPPORTED      0x0002
443
444///
445/// UNDI Initialize.
446///
447#define PXE_STATFLAGS_INITIALIZED_NO_MEDIA  0x0001
448
449///
450/// UNDI Reset.
451///
452#define PXE_STATFLAGS_RESET_NO_MEDIA  0x0001
453
454///
455/// UNDI Shutdown.
456///
457/// No additional StatFlags.
458
459///
460/// UNDI Interrupt Enables.
461///
462///
463/// If set, receive interrupts are enabled.
464///
465#define PXE_STATFLAGS_INTERRUPT_RECEIVE 0x0001
466
467///
468/// If set, transmit interrupts are enabled.
469///
470#define PXE_STATFLAGS_INTERRUPT_TRANSMIT  0x0002
471
472///
473/// If set, command interrupts are enabled.
474///
475#define PXE_STATFLAGS_INTERRUPT_COMMAND 0x0004
476
477///
478/// UNDI Receive Filters.
479///
480
481///
482/// If set, unicast packets will be received.
483///
484#define PXE_STATFLAGS_RECEIVE_FILTER_UNICAST  0x0001
485
486///
487/// If set, broadcast packets will be received.
488///
489#define PXE_STATFLAGS_RECEIVE_FILTER_BROADCAST  0x0002
490
491///
492/// If set, multicast packets that match up with the multicast address
493/// filter list will be received.
494///
495#define PXE_STATFLAGS_RECEIVE_FILTER_FILTERED_MULTICAST 0x0004
496
497///
498/// If set, all packets will be received.
499///
500#define PXE_STATFLAGS_RECEIVE_FILTER_PROMISCUOUS  0x0008
501
502///
503/// If set, all multicast packets will be received.
504///
505#define PXE_STATFLAGS_RECEIVE_FILTER_ALL_MULTICAST  0x0010
506
507///
508/// UNDI Station Address.
509///
510/// No additional StatFlags.
511///
512
513///
514/// UNDI Statistics.
515///
516/// No additional StatFlags.
517///
518
519///
520//// UNDI MCast IP to MAC.
521////
522//// No additional StatFlags.
523
524///
525/// UNDI NvData.
526///
527/// No additional StatFlags.
528///
529
530///
531/// UNDI Get Status.
532///
533
534///
535/// Use to determine if an interrupt has occurred.
536///
537#define PXE_STATFLAGS_GET_STATUS_INTERRUPT_MASK 0x000F
538#define PXE_STATFLAGS_GET_STATUS_NO_INTERRUPTS  0x0000
539
540///
541/// If set, at least one receive interrupt occurred.
542///
543#define PXE_STATFLAGS_GET_STATUS_RECEIVE  0x0001
544
545///
546/// If set, at least one transmit interrupt occurred.
547///
548#define PXE_STATFLAGS_GET_STATUS_TRANSMIT 0x0002
549
550///
551/// If set, at least one command interrupt occurred.
552///
553#define PXE_STATFLAGS_GET_STATUS_COMMAND  0x0004
554
555///
556/// If set, at least one software interrupt occurred.
557///
558#define PXE_STATFLAGS_GET_STATUS_SOFTWARE 0x0008
559
560///
561/// This flag is set if the transmitted buffer queue is empty.  This flag
562/// will be set if all transmitted buffer addresses get written into the DB.
563///
564#define PXE_STATFLAGS_GET_STATUS_TXBUF_QUEUE_EMPTY  0x0010
565
566///
567/// This flag is set if no transmitted buffer addresses were written
568/// into the DB.  (This could be because DBsize was too small.)
569///
570#define PXE_STATFLAGS_GET_STATUS_NO_TXBUFS_WRITTEN  0x0020
571
572///
573/// This flag is set if there is no media detected.
574///
575#define PXE_STATFLAGS_GET_STATUS_NO_MEDIA  0x0040
576
577///
578/// UNDI Fill Header.
579///
580/// No additional StatFlags.
581///
582
583///
584/// UNDI Transmit.
585///
586/// No additional StatFlags.
587
588///
589/// UNDI Receive
590///.
591
592///
593/// No additional StatFlags.
594///
595typedef PXE_UINT16  PXE_STATCODE;
596
597#define PXE_STATCODE_INITIALIZE 0x0000
598
599///
600/// Common StatCodes returned by all UNDI commands, UNDI protocol functions
601/// and BC protocol functions.
602///
603#define PXE_STATCODE_SUCCESS              0x0000
604
605#define PXE_STATCODE_INVALID_CDB          0x0001
606#define PXE_STATCODE_INVALID_CPB          0x0002
607#define PXE_STATCODE_BUSY                 0x0003
608#define PXE_STATCODE_QUEUE_FULL           0x0004
609#define PXE_STATCODE_ALREADY_STARTED      0x0005
610#define PXE_STATCODE_NOT_STARTED          0x0006
611#define PXE_STATCODE_NOT_SHUTDOWN         0x0007
612#define PXE_STATCODE_ALREADY_INITIALIZED  0x0008
613#define PXE_STATCODE_NOT_INITIALIZED      0x0009
614#define PXE_STATCODE_DEVICE_FAILURE       0x000A
615#define PXE_STATCODE_NVDATA_FAILURE       0x000B
616#define PXE_STATCODE_UNSUPPORTED          0x000C
617#define PXE_STATCODE_BUFFER_FULL          0x000D
618#define PXE_STATCODE_INVALID_PARAMETER    0x000E
619#define PXE_STATCODE_INVALID_UNDI         0x000F
620#define PXE_STATCODE_IPV4_NOT_SUPPORTED   0x0010
621#define PXE_STATCODE_IPV6_NOT_SUPPORTED   0x0011
622#define PXE_STATCODE_NOT_ENOUGH_MEMORY    0x0012
623#define PXE_STATCODE_NO_DATA              0x0013
624
625typedef PXE_UINT16  PXE_IFNUM;
626
627///
628/// This interface number must be passed to the S/W UNDI Start command.
629///
630#define PXE_IFNUM_START 0x0000
631
632///
633/// This interface number is returned by the S/W UNDI Get State and
634/// Start commands if information in the CDB, CPB or DB is invalid.
635///
636#define PXE_IFNUM_INVALID 0x0000
637
638typedef PXE_UINT16  PXE_CONTROL;
639
640///
641/// Setting this flag directs the UNDI to queue this command for later
642/// execution if the UNDI is busy and it supports command queuing.
643/// If queuing is not supported, a PXE_STATCODE_INVALID_CONTROL error
644/// is returned.  If the queue is full, a PXE_STATCODE_CDB_QUEUE_FULL
645/// error is returned.
646///
647#define PXE_CONTROL_QUEUE_IF_BUSY 0x0002
648
649///
650/// These two bit values are used to determine if there are more UNDI
651/// CDB structures following this one.  If the link bit is set, there
652/// must be a CDB structure following this one.  Execution will start
653/// on the next CDB structure as soon as this one completes successfully.
654/// If an error is generated by this command, execution will stop.
655///
656#define PXE_CONTROL_LINK              0x0001
657#define PXE_CONTROL_LAST_CDB_IN_LIST  0x0000
658
659typedef PXE_UINT8   PXE_FRAME_TYPE;
660
661#define PXE_FRAME_TYPE_NONE                     0x00
662#define PXE_FRAME_TYPE_UNICAST                  0x01
663#define PXE_FRAME_TYPE_BROADCAST                0x02
664#define PXE_FRAME_TYPE_FILTERED_MULTICAST       0x03
665#define PXE_FRAME_TYPE_PROMISCUOUS              0x04
666#define PXE_FRAME_TYPE_PROMISCUOUS_MULTICAST    0x05
667
668#define PXE_FRAME_TYPE_MULTICAST                PXE_FRAME_TYPE_FILTERED_MULTICAST
669
670typedef PXE_UINT32  PXE_IPV4;
671
672typedef PXE_UINT32  PXE_IPV6[4];
673#define PXE_MAC_LENGTH  32
674
675typedef PXE_UINT8   PXE_MAC_ADDR[PXE_MAC_LENGTH];
676
677typedef PXE_UINT8   PXE_IFTYPE;
678typedef UINT16      PXE_MEDIA_PROTOCOL;
679
680///
681/// This information is from the ARP section of RFC 1700.
682///
683///     1 Ethernet (10Mb)                                    [JBP]
684///     2 Experimental Ethernet (3Mb)                        [JBP]
685///     3 Amateur Radio AX.25                                [PXK]
686///     4 Proteon ProNET Token Ring                          [JBP]
687///     5 Chaos                                              [GXP]
688///     6 IEEE 802 Networks                                  [JBP]
689///     7 ARCNET                                             [JBP]
690///     8 Hyperchannel                                       [JBP]
691///     9 Lanstar                                             [TU]
692///    10 Autonet Short Address                             [MXB1]
693///    11 LocalTalk                                         [JKR1]
694///    12 LocalNet (IBM* PCNet or SYTEK* LocalNET)           [JXM]
695///    13 Ultra link                                        [RXD2]
696///    14 SMDS                                              [GXC1]
697///    15 Frame Relay                                        [AGM]
698///    16 Asynchronous Transmission Mode (ATM)              [JXB2]
699///    17 HDLC                                               [JBP]
700///    18 Fibre Channel                            [Yakov Rekhter]
701///    19 Asynchronous Transmission Mode (ATM)      [Mark Laubach]
702///    20 Serial Line                                        [JBP]
703///    21 Asynchronous Transmission Mode (ATM)              [MXB1]
704///
705/// * Other names and brands may be claimed as the property of others.
706///
707#define PXE_IFTYPE_ETHERNET       0x01
708#define PXE_IFTYPE_TOKENRING      0x04
709#define PXE_IFTYPE_FIBRE_CHANNEL  0x12
710
711typedef struct s_pxe_hw_undi {
712  PXE_UINT32  Signature;      ///< PXE_ROMID_SIGNATURE.
713  PXE_UINT8   Len;            ///< sizeof(PXE_HW_UNDI).
714  PXE_UINT8   Fudge;          ///< makes 8-bit cksum equal zero.
715  PXE_UINT8   Rev;            ///< PXE_ROMID_REV.
716  PXE_UINT8   IFcnt;          ///< physical connector count lower byte.
717  PXE_UINT8   MajorVer;       ///< PXE_ROMID_MAJORVER.
718  PXE_UINT8   MinorVer;       ///< PXE_ROMID_MINORVER.
719  PXE_UINT8   IFcntExt;       ///< physical connector count upper byte.
720  PXE_UINT8   reserved;       ///< zero, not used.
721  PXE_UINT32  Implementation; ///< implementation flags.
722  ///< reserved             ///< vendor use.
723  ///< UINT32 Status;       ///< status port.
724  ///< UINT32 Command;      ///< command port.
725  ///< UINT64 CDBaddr;      ///< CDB address port.
726  ///<
727} PXE_HW_UNDI;
728
729///
730/// Status port bit definitions.
731///
732
733///
734/// UNDI operation state.
735///
736#define PXE_HWSTAT_STATE_MASK   0xC0000000
737#define PXE_HWSTAT_BUSY         0xC0000000
738#define PXE_HWSTAT_INITIALIZED  0x80000000
739#define PXE_HWSTAT_STARTED      0x40000000
740#define PXE_HWSTAT_STOPPED      0x00000000
741
742///
743/// If set, last command failed.
744///
745#define PXE_HWSTAT_COMMAND_FAILED 0x20000000
746
747///
748/// If set, identifies enabled receive filters.
749///
750#define PXE_HWSTAT_PROMISCUOUS_MULTICAST_RX_ENABLED 0x00001000
751#define PXE_HWSTAT_PROMISCUOUS_RX_ENABLED           0x00000800
752#define PXE_HWSTAT_BROADCAST_RX_ENABLED             0x00000400
753#define PXE_HWSTAT_MULTICAST_RX_ENABLED             0x00000200
754#define PXE_HWSTAT_UNICAST_RX_ENABLED               0x00000100
755
756///
757/// If set, identifies enabled external interrupts.
758///
759#define PXE_HWSTAT_SOFTWARE_INT_ENABLED     0x00000080
760#define PXE_HWSTAT_TX_COMPLETE_INT_ENABLED  0x00000040
761#define PXE_HWSTAT_PACKET_RX_INT_ENABLED    0x00000020
762#define PXE_HWSTAT_CMD_COMPLETE_INT_ENABLED 0x00000010
763
764///
765/// If set, identifies pending interrupts.
766///
767#define PXE_HWSTAT_SOFTWARE_INT_PENDING     0x00000008
768#define PXE_HWSTAT_TX_COMPLETE_INT_PENDING  0x00000004
769#define PXE_HWSTAT_PACKET_RX_INT_PENDING    0x00000002
770#define PXE_HWSTAT_CMD_COMPLETE_INT_PENDING 0x00000001
771
772///
773/// Command port definitions.
774///
775
776///
777/// If set, CDB identified in CDBaddr port is given to UNDI.
778/// If not set, other bits in this word will be processed.
779///
780#define PXE_HWCMD_ISSUE_COMMAND   0x80000000
781#define PXE_HWCMD_INTS_AND_FILTS  0x00000000
782
783///
784/// Use these to enable/disable receive filters.
785///
786#define PXE_HWCMD_PROMISCUOUS_MULTICAST_RX_ENABLE 0x00001000
787#define PXE_HWCMD_PROMISCUOUS_RX_ENABLE           0x00000800
788#define PXE_HWCMD_BROADCAST_RX_ENABLE             0x00000400
789#define PXE_HWCMD_MULTICAST_RX_ENABLE             0x00000200
790#define PXE_HWCMD_UNICAST_RX_ENABLE               0x00000100
791
792///
793/// Use these to enable/disable external interrupts.
794///
795#define PXE_HWCMD_SOFTWARE_INT_ENABLE     0x00000080
796#define PXE_HWCMD_TX_COMPLETE_INT_ENABLE  0x00000040
797#define PXE_HWCMD_PACKET_RX_INT_ENABLE    0x00000020
798#define PXE_HWCMD_CMD_COMPLETE_INT_ENABLE 0x00000010
799
800///
801/// Use these to clear pending external interrupts.
802///
803#define PXE_HWCMD_CLEAR_SOFTWARE_INT      0x00000008
804#define PXE_HWCMD_CLEAR_TX_COMPLETE_INT   0x00000004
805#define PXE_HWCMD_CLEAR_PACKET_RX_INT     0x00000002
806#define PXE_HWCMD_CLEAR_CMD_COMPLETE_INT  0x00000001
807
808typedef struct s_pxe_sw_undi {
809  PXE_UINT32  Signature;      ///< PXE_ROMID_SIGNATURE.
810  PXE_UINT8   Len;            ///< sizeof(PXE_SW_UNDI).
811  PXE_UINT8   Fudge;          ///< makes 8-bit cksum zero.
812  PXE_UINT8   Rev;            ///< PXE_ROMID_REV.
813  PXE_UINT8   IFcnt;          ///< physical connector count lower byte.
814  PXE_UINT8   MajorVer;       ///< PXE_ROMID_MAJORVER.
815  PXE_UINT8   MinorVer;       ///< PXE_ROMID_MINORVER.
816  PXE_UINT8   IFcntExt;       ///< physical connector count upper byte.
817  PXE_UINT8   reserved1;      ///< zero, not used.
818  PXE_UINT32  Implementation; ///< Implementation flags.
819  PXE_UINT64  EntryPoint;     ///< API entry point.
820  PXE_UINT8   reserved2[3];   ///< zero, not used.
821  PXE_UINT8   BusCnt;         ///< number of bustypes supported.
822  PXE_UINT32  BusType[1];     ///< list of supported bustypes.
823} PXE_SW_UNDI;
824
825typedef union u_pxe_undi {
826  PXE_HW_UNDI hw;
827  PXE_SW_UNDI sw;
828} PXE_UNDI;
829
830///
831/// Signature of !PXE structure.
832///
833#define PXE_ROMID_SIGNATURE PXE_BUSTYPE ('!', 'P', 'X', 'E')
834
835///
836/// !PXE structure format revision
837///.
838#define PXE_ROMID_REV 0x02
839
840///
841/// UNDI command interface revision.  These are the values that get sent
842/// in option 94 (Client Network Interface Identifier) in the DHCP Discover
843/// and PXE Boot Server Request packets.
844///
845#define PXE_ROMID_MAJORVER    0x03
846#define PXE_ROMID_MINORVER    0x01
847
848///
849/// Implementation flags.
850///
851#define PXE_ROMID_IMP_HW_UNDI                             0x80000000
852#define PXE_ROMID_IMP_SW_VIRT_ADDR                        0x40000000
853#define PXE_ROMID_IMP_64BIT_DEVICE                        0x00010000
854#define PXE_ROMID_IMP_FRAG_SUPPORTED                      0x00008000
855#define PXE_ROMID_IMP_CMD_LINK_SUPPORTED                  0x00004000
856#define PXE_ROMID_IMP_CMD_QUEUE_SUPPORTED                 0x00002000
857#define PXE_ROMID_IMP_MULTI_FRAME_SUPPORTED               0x00001000
858#define PXE_ROMID_IMP_NVDATA_SUPPORT_MASK                 0x00000C00
859#define PXE_ROMID_IMP_NVDATA_BULK_WRITABLE                0x00000C00
860#define PXE_ROMID_IMP_NVDATA_SPARSE_WRITABLE              0x00000800
861#define PXE_ROMID_IMP_NVDATA_READ_ONLY                    0x00000400
862#define PXE_ROMID_IMP_NVDATA_NOT_AVAILABLE                0x00000000
863#define PXE_ROMID_IMP_STATISTICS_SUPPORTED                0x00000200
864#define PXE_ROMID_IMP_STATION_ADDR_SETTABLE               0x00000100
865#define PXE_ROMID_IMP_PROMISCUOUS_MULTICAST_RX_SUPPORTED  0x00000080
866#define PXE_ROMID_IMP_PROMISCUOUS_RX_SUPPORTED            0x00000040
867#define PXE_ROMID_IMP_BROADCAST_RX_SUPPORTED              0x00000020
868#define PXE_ROMID_IMP_FILTERED_MULTICAST_RX_SUPPORTED     0x00000010
869#define PXE_ROMID_IMP_SOFTWARE_INT_SUPPORTED              0x00000008
870#define PXE_ROMID_IMP_TX_COMPLETE_INT_SUPPORTED           0x00000004
871#define PXE_ROMID_IMP_PACKET_RX_INT_SUPPORTED             0x00000002
872#define PXE_ROMID_IMP_CMD_COMPLETE_INT_SUPPORTED          0x00000001
873
874typedef struct s_pxe_cdb {
875  PXE_OPCODE    OpCode;
876  PXE_OPFLAGS   OpFlags;
877  PXE_UINT16    CPBsize;
878  PXE_UINT16    DBsize;
879  PXE_UINT64    CPBaddr;
880  PXE_UINT64    DBaddr;
881  PXE_STATCODE  StatCode;
882  PXE_STATFLAGS StatFlags;
883  PXE_UINT16    IFnum;
884  PXE_CONTROL   Control;
885} PXE_CDB;
886
887typedef union u_pxe_ip_addr {
888  PXE_IPV6  IPv6;
889  PXE_IPV4  IPv4;
890} PXE_IP_ADDR;
891
892typedef union pxe_device {
893  ///
894  /// PCI and PC Card NICs are both identified using bus, device
895  /// and function numbers.  For PC Card, this may require PC
896  /// Card services to be loaded in the BIOS or preboot
897  /// environment.
898  ///
899  struct {
900    ///
901    /// See S/W UNDI ROMID structure definition for PCI and
902    /// PCC BusType definitions.
903    ///
904    PXE_UINT32  BusType;
905
906    ///
907    /// Bus, device & function numbers that locate this device.
908    ///
909    PXE_UINT16  Bus;
910    PXE_UINT8   Device;
911    PXE_UINT8   Function;
912  }
913  PCI, PCC;
914
915} PXE_DEVICE;
916
917///
918/// cpb and db definitions
919///
920#define MAX_PCI_CONFIG_LEN    64  ///< # of dwords.
921#define MAX_EEPROM_LEN        128 ///< # of dwords.
922#define MAX_XMIT_BUFFERS      32  ///< recycling Q length for xmit_done.
923#define MAX_MCAST_ADDRESS_CNT 8
924
925typedef struct s_pxe_cpb_start_30 {
926  ///
927  /// PXE_VOID Delay(UINTN microseconds);
928  ///
929  /// UNDI will never request a delay smaller than 10 microseconds
930  /// and will always request delays in increments of 10 microseconds.
931  /// The Delay() CallBack routine must delay between n and n + 10
932  /// microseconds before returning control to the UNDI.
933  ///
934  /// This field cannot be set to zero.
935  ///
936  UINT64  Delay;
937
938  ///
939  /// PXE_VOID Block(UINT32 enable);
940  ///
941  /// UNDI may need to block multi-threaded/multi-processor access to
942  /// critical code sections when programming or accessing the network
943  /// device.  To this end, a blocking service is needed by the UNDI.
944  /// When UNDI needs a block, it will call Block() passing a non-zero
945  /// value.  When UNDI no longer needs a block, it will call Block()
946  /// with a zero value.  When called, if the Block() is already enabled,
947  /// do not return control to the UNDI until the previous Block() is
948  /// disabled.
949  ///
950  /// This field cannot be set to zero.
951  ///
952  UINT64  Block;
953
954  ///
955  /// PXE_VOID Virt2Phys(UINT64 virtual, UINT64 physical_ptr);
956  ///
957  /// UNDI will pass the virtual address of a buffer and the virtual
958  /// address of a 64-bit physical buffer.  Convert the virtual address
959  /// to a physical address and write the result to the physical address
960  /// buffer.  If virtual and physical addresses are the same, just
961  /// copy the virtual address to the physical address buffer.
962  ///
963  /// This field can be set to zero if virtual and physical addresses
964  /// are equal.
965  ///
966  UINT64  Virt2Phys;
967  ///
968  /// PXE_VOID Mem_IO(UINT8 read_write, UINT8 len, UINT64 port,
969  ///              UINT64 buf_addr);
970  ///
971  /// UNDI will read or write the device io space using this call back
972  /// function. It passes the number of bytes as the len parameter and it
973  /// will be either 1,2,4 or 8.
974  ///
975  /// This field can not be set to zero.
976  ///
977  UINT64  Mem_IO;
978} PXE_CPB_START_30;
979
980typedef struct s_pxe_cpb_start_31 {
981  ///
982  /// PXE_VOID Delay(UINT64 UnqId, UINTN microseconds);
983  ///
984  /// UNDI will never request a delay smaller than 10 microseconds
985  /// and will always request delays in increments of 10 microseconds.
986  /// The Delay() CallBack routine must delay between n and n + 10
987  /// microseconds before returning control to the UNDI.
988  ///
989  /// This field cannot be set to zero.
990  ///
991  UINT64  Delay;
992
993  ///
994  /// PXE_VOID Block(UINT64 unq_id, UINT32 enable);
995  ///
996  /// UNDI may need to block multi-threaded/multi-processor access to
997  /// critical code sections when programming or accessing the network
998  /// device.  To this end, a blocking service is needed by the UNDI.
999  /// When UNDI needs a block, it will call Block() passing a non-zero
1000  /// value.  When UNDI no longer needs a block, it will call Block()
1001  /// with a zero value.  When called, if the Block() is already enabled,
1002  /// do not return control to the UNDI until the previous Block() is
1003  /// disabled.
1004  ///
1005  /// This field cannot be set to zero.
1006  ///
1007  UINT64  Block;
1008
1009  ///
1010  /// PXE_VOID Virt2Phys(UINT64 UnqId, UINT64 virtual, UINT64 physical_ptr);
1011  ///
1012  /// UNDI will pass the virtual address of a buffer and the virtual
1013  /// address of a 64-bit physical buffer.  Convert the virtual address
1014  /// to a physical address and write the result to the physical address
1015  /// buffer.  If virtual and physical addresses are the same, just
1016  /// copy the virtual address to the physical address buffer.
1017  ///
1018  /// This field can be set to zero if virtual and physical addresses
1019  /// are equal.
1020  ///
1021  UINT64  Virt2Phys;
1022  ///
1023  /// PXE_VOID Mem_IO(UINT64 UnqId, UINT8 read_write, UINT8 len, UINT64 port,
1024  ///              UINT64 buf_addr);
1025  ///
1026  /// UNDI will read or write the device io space using this call back
1027  /// function. It passes the number of bytes as the len parameter and it
1028  /// will be either 1,2,4 or 8.
1029  ///
1030  /// This field can not be set to zero.
1031  ///
1032  UINT64  Mem_IO;
1033  ///
1034  /// PXE_VOID Map_Mem(UINT64 unq_id, UINT64 virtual_addr, UINT32 size,
1035  ///                 UINT32 Direction, UINT64 mapped_addr);
1036  ///
1037  /// UNDI will pass the virtual address of a buffer, direction of the data
1038  /// flow from/to the mapped buffer (the constants are defined below)
1039  /// and a place holder (pointer) for the mapped address.
1040  /// This call will Map the given address to a physical DMA address and write
1041  /// the result to the mapped_addr pointer.  If there is no need to
1042  /// map the given address to a lower address (i.e. the given address is
1043  /// associated with a physical address that is already compatible to be
1044  /// used with the DMA, it converts the given virtual address to it's
1045  /// physical address and write that in the mapped address pointer.
1046  ///
1047  /// This field can be set to zero if there is no mapping service available.
1048  ///
1049  UINT64  Map_Mem;
1050
1051  ///
1052  /// PXE_VOID UnMap_Mem(UINT64 unq_id, UINT64 virtual_addr, UINT32 size,
1053  ///            UINT32 Direction, UINT64 mapped_addr);
1054  ///
1055  /// UNDI will pass the virtual and mapped addresses of a buffer.
1056  /// This call will un map the given address.
1057  ///
1058  /// This field can be set to zero if there is no unmapping service available.
1059  ///
1060  UINT64  UnMap_Mem;
1061
1062  ///
1063  /// PXE_VOID Sync_Mem(UINT64 unq_id, UINT64 virtual,
1064  ///            UINT32 size, UINT32 Direction, UINT64 mapped_addr);
1065  ///
1066  /// UNDI will pass the virtual and mapped addresses of a buffer.
1067  /// This call will synchronize the contents of both the virtual and mapped.
1068  /// buffers for the given Direction.
1069  ///
1070  /// This field can be set to zero if there is no service available.
1071  ///
1072  UINT64  Sync_Mem;
1073
1074  ///
1075  /// protocol driver can provide anything for this Unique_ID, UNDI remembers
1076  /// that as just a 64bit value associated to the interface specified by
1077  /// the ifnum and gives it back as a parameter to all the call-back routines
1078  /// when calling for that interface!
1079  ///
1080  UINT64  Unique_ID;
1081} PXE_CPB_START_31;
1082
1083#define TO_AND_FROM_DEVICE    0
1084#define FROM_DEVICE           1
1085#define TO_DEVICE             2
1086
1087#define PXE_DELAY_MILLISECOND 1000
1088#define PXE_DELAY_SECOND      1000000
1089#define PXE_IO_READ           0
1090#define PXE_IO_WRITE          1
1091#define PXE_MEM_READ          2
1092#define PXE_MEM_WRITE         4
1093
1094typedef struct s_pxe_db_get_init_info {
1095  ///
1096  /// Minimum length of locked memory buffer that must be given to
1097  /// the Initialize command. Giving UNDI more memory will generally
1098  /// give better performance.
1099  ///
1100  /// If MemoryRequired is zero, the UNDI does not need and will not
1101  /// use system memory to receive and transmit packets.
1102  ///
1103  PXE_UINT32  MemoryRequired;
1104
1105  ///
1106  /// Maximum frame data length for Tx/Rx excluding the media header.
1107  ///
1108  PXE_UINT32  FrameDataLen;
1109
1110  ///
1111  /// Supported link speeds are in units of mega bits.  Common ethernet
1112  /// values are 10, 100 and 1000.  Unused LinkSpeeds[] entries are zero
1113  /// filled.
1114  ///
1115  PXE_UINT32  LinkSpeeds[4];
1116
1117  ///
1118  /// Number of non-volatile storage items.
1119  ///
1120  PXE_UINT32  NvCount;
1121
1122  ///
1123  /// Width of non-volatile storage item in bytes.  0, 1, 2 or 4
1124  ///
1125  PXE_UINT16  NvWidth;
1126
1127  ///
1128  /// Media header length.  This is the typical media header length for
1129  /// this UNDI.  This information is needed when allocating receive
1130  /// and transmit buffers.
1131  ///
1132  PXE_UINT16  MediaHeaderLen;
1133
1134  ///
1135  /// Number of bytes in the NIC hardware (MAC) address.
1136  ///
1137  PXE_UINT16  HWaddrLen;
1138
1139  ///
1140  /// Maximum number of multicast MAC addresses in the multicast
1141  /// MAC address filter list.
1142  ///
1143  PXE_UINT16  MCastFilterCnt;
1144
1145  ///
1146  /// Default number and size of transmit and receive buffers that will
1147  /// be allocated by the UNDI.  If MemoryRequired is non-zero, this
1148  /// allocation will come out of the memory buffer given to the Initialize
1149  /// command.  If MemoryRequired is zero, this allocation will come out of
1150  /// memory on the NIC.
1151  ///
1152  PXE_UINT16  TxBufCnt;
1153  PXE_UINT16  TxBufSize;
1154  PXE_UINT16  RxBufCnt;
1155  PXE_UINT16  RxBufSize;
1156
1157  ///
1158  /// Hardware interface types defined in the Assigned Numbers RFC
1159  /// and used in DHCP and ARP packets.
1160  /// See the PXE_IFTYPE typedef and PXE_IFTYPE_xxx macros.
1161  ///
1162  PXE_UINT8   IFtype;
1163
1164  ///
1165  /// Supported duplex.  See PXE_DUPLEX_xxxxx #defines below.
1166  ///
1167  PXE_UINT8   SupportedDuplexModes;
1168
1169  ///
1170  /// Supported loopback options.  See PXE_LOOPBACK_xxxxx #defines below.
1171  ///
1172  PXE_UINT8   SupportedLoopBackModes;
1173} PXE_DB_GET_INIT_INFO;
1174
1175#define PXE_MAX_TXRX_UNIT_ETHER           1500
1176
1177#define PXE_HWADDR_LEN_ETHER              0x0006
1178#define PXE_MAC_HEADER_LEN_ETHER          0x000E
1179
1180#define PXE_DUPLEX_ENABLE_FULL_SUPPORTED  1
1181#define PXE_DUPLEX_FORCE_FULL_SUPPORTED   2
1182
1183#define PXE_LOOPBACK_INTERNAL_SUPPORTED   1
1184#define PXE_LOOPBACK_EXTERNAL_SUPPORTED   2
1185
1186typedef struct s_pxe_pci_config_info {
1187  ///
1188  /// This is the flag field for the PXE_DB_GET_CONFIG_INFO union.
1189  /// For PCI bus devices, this field is set to PXE_BUSTYPE_PCI.
1190  ///
1191  UINT32  BusType;
1192
1193  ///
1194  /// This identifies the PCI network device that this UNDI interface.
1195  /// is bound to.
1196  ///
1197  UINT16  Bus;
1198  UINT8   Device;
1199  UINT8   Function;
1200
1201  ///
1202  /// This is a copy of the PCI configuration space for this
1203  /// network device.
1204  ///
1205  union {
1206    UINT8   Byte[256];
1207    UINT16  Word[128];
1208    UINT32  Dword[64];
1209  } Config;
1210} PXE_PCI_CONFIG_INFO;
1211
1212typedef struct s_pxe_pcc_config_info {
1213  ///
1214  /// This is the flag field for the PXE_DB_GET_CONFIG_INFO union.
1215  /// For PCC bus devices, this field is set to PXE_BUSTYPE_PCC.
1216  ///
1217  PXE_UINT32  BusType;
1218
1219  ///
1220  /// This identifies the PCC network device that this UNDI interface
1221  /// is bound to.
1222  ///
1223  PXE_UINT16  Bus;
1224  PXE_UINT8   Device;
1225  PXE_UINT8   Function;
1226
1227  ///
1228  /// This is a copy of the PCC configuration space for this
1229  /// network device.
1230  ///
1231  union {
1232    PXE_UINT8   Byte[256];
1233    PXE_UINT16  Word[128];
1234    PXE_UINT32  Dword[64];
1235  } Config;
1236} PXE_PCC_CONFIG_INFO;
1237
1238typedef union u_pxe_db_get_config_info {
1239  PXE_PCI_CONFIG_INFO   pci;
1240  PXE_PCC_CONFIG_INFO   pcc;
1241} PXE_DB_GET_CONFIG_INFO;
1242
1243typedef struct s_pxe_cpb_initialize {
1244  ///
1245  /// Address of first (lowest) byte of the memory buffer.  This buffer must
1246  /// be in contiguous physical memory and cannot be swapped out.  The UNDI
1247  /// will be using this for transmit and receive buffering.
1248  ///
1249  PXE_UINT64  MemoryAddr;
1250
1251  ///
1252  /// MemoryLength must be greater than or equal to MemoryRequired
1253  /// returned by the Get Init Info command.
1254  ///
1255  PXE_UINT32  MemoryLength;
1256
1257  ///
1258  /// Desired link speed in Mbit/sec.  Common ethernet values are 10, 100
1259  /// and 1000.  Setting a value of zero will auto-detect and/or use the
1260  /// default link speed (operation depends on UNDI/NIC functionality).
1261  ///
1262  PXE_UINT32  LinkSpeed;
1263
1264  ///
1265  /// Suggested number and size of receive and transmit buffers to
1266  /// allocate.  If MemoryAddr and MemoryLength are non-zero, this
1267  /// allocation comes out of the supplied memory buffer.  If MemoryAddr
1268  /// and MemoryLength are zero, this allocation comes out of memory
1269  /// on the NIC.
1270  ///
1271  /// If these fields are set to zero, the UNDI will allocate buffer
1272  /// counts and sizes as it sees fit.
1273  ///
1274  PXE_UINT16  TxBufCnt;
1275  PXE_UINT16  TxBufSize;
1276  PXE_UINT16  RxBufCnt;
1277  PXE_UINT16  RxBufSize;
1278
1279  ///
1280  /// The following configuration parameters are optional and must be zero
1281  /// to use the default values.
1282  ///
1283  PXE_UINT8   DuplexMode;
1284
1285  PXE_UINT8   LoopBackMode;
1286} PXE_CPB_INITIALIZE;
1287
1288#define PXE_DUPLEX_DEFAULT      0x00
1289#define PXE_FORCE_FULL_DUPLEX   0x01
1290#define PXE_ENABLE_FULL_DUPLEX  0x02
1291#define PXE_FORCE_HALF_DUPLEX   0x04
1292#define PXE_DISABLE_FULL_DUPLEX 0x08
1293
1294#define LOOPBACK_NORMAL         0
1295#define LOOPBACK_INTERNAL       1
1296#define LOOPBACK_EXTERNAL       2
1297
1298typedef struct s_pxe_db_initialize {
1299  ///
1300  /// Actual amount of memory used from the supplied memory buffer.  This
1301  /// may be less that the amount of memory suppllied and may be zero if
1302  /// the UNDI and network device do not use external memory buffers.
1303  ///
1304  /// Memory used by the UNDI and network device is allocated from the
1305  /// lowest memory buffer address.
1306  ///
1307  PXE_UINT32  MemoryUsed;
1308
1309  ///
1310  /// Actual number and size of receive and transmit buffers that were
1311  /// allocated.
1312  ///
1313  PXE_UINT16  TxBufCnt;
1314  PXE_UINT16  TxBufSize;
1315  PXE_UINT16  RxBufCnt;
1316  PXE_UINT16  RxBufSize;
1317} PXE_DB_INITIALIZE;
1318
1319typedef struct s_pxe_cpb_receive_filters {
1320  ///
1321  /// List of multicast MAC addresses.  This list, if present, will
1322  /// replace the existing multicast MAC address filter list.
1323  ///
1324  PXE_MAC_ADDR  MCastList[MAX_MCAST_ADDRESS_CNT];
1325} PXE_CPB_RECEIVE_FILTERS;
1326
1327typedef struct s_pxe_db_receive_filters {
1328  ///
1329  /// Filtered multicast MAC address list.
1330  ///
1331  PXE_MAC_ADDR  MCastList[MAX_MCAST_ADDRESS_CNT];
1332} PXE_DB_RECEIVE_FILTERS;
1333
1334typedef struct s_pxe_cpb_station_address {
1335  ///
1336  /// If supplied and supported, the current station MAC address
1337  /// will be changed.
1338  ///
1339  PXE_MAC_ADDR  StationAddr;
1340} PXE_CPB_STATION_ADDRESS;
1341
1342typedef struct s_pxe_dpb_station_address {
1343  ///
1344  /// Current station MAC address.
1345  ///
1346  PXE_MAC_ADDR  StationAddr;
1347
1348  ///
1349  /// Station broadcast MAC address.
1350  ///
1351  PXE_MAC_ADDR  BroadcastAddr;
1352
1353  ///
1354  /// Permanent station MAC address.
1355  ///
1356  PXE_MAC_ADDR  PermanentAddr;
1357} PXE_DB_STATION_ADDRESS;
1358
1359typedef struct s_pxe_db_statistics {
1360  ///
1361  /// Bit field identifying what statistic data is collected by the
1362  /// UNDI/NIC.
1363  /// If bit 0x00 is set, Data[0x00] is collected.
1364  /// If bit 0x01 is set, Data[0x01] is collected.
1365  /// If bit 0x20 is set, Data[0x20] is collected.
1366  /// If bit 0x21 is set, Data[0x21] is collected.
1367  /// Etc.
1368  ///
1369  PXE_UINT64  Supported;
1370
1371  ///
1372  /// Statistic data.
1373  ///
1374  PXE_UINT64  Data[64];
1375} PXE_DB_STATISTICS;
1376
1377///
1378/// Total number of frames received.  Includes frames with errors and
1379/// dropped frames.
1380///
1381#define PXE_STATISTICS_RX_TOTAL_FRAMES  0x00
1382
1383///
1384/// Number of valid frames received and copied into receive buffers.
1385///
1386#define PXE_STATISTICS_RX_GOOD_FRAMES 0x01
1387
1388///
1389/// Number of frames below the minimum length for the media.
1390/// This would be <64 for ethernet.
1391///
1392#define PXE_STATISTICS_RX_UNDERSIZE_FRAMES  0x02
1393
1394///
1395/// Number of frames longer than the maxminum length for the
1396/// media.  This would be >1500 for ethernet.
1397///
1398#define PXE_STATISTICS_RX_OVERSIZE_FRAMES 0x03
1399
1400///
1401/// Valid frames that were dropped because receive buffers were full.
1402///
1403#define PXE_STATISTICS_RX_DROPPED_FRAMES  0x04
1404
1405///
1406/// Number of valid unicast frames received and not dropped.
1407///
1408#define PXE_STATISTICS_RX_UNICAST_FRAMES  0x05
1409
1410///
1411/// Number of valid broadcast frames received and not dropped.
1412///
1413#define PXE_STATISTICS_RX_BROADCAST_FRAMES  0x06
1414
1415///
1416/// Number of valid mutlicast frames received and not dropped.
1417///
1418#define PXE_STATISTICS_RX_MULTICAST_FRAMES  0x07
1419
1420///
1421/// Number of frames w/ CRC or alignment errors.
1422///
1423#define PXE_STATISTICS_RX_CRC_ERROR_FRAMES  0x08
1424
1425///
1426/// Total number of bytes received.  Includes frames with errors
1427/// and dropped frames.
1428///
1429#define PXE_STATISTICS_RX_TOTAL_BYTES 0x09
1430
1431///
1432/// Transmit statistics.
1433///
1434#define PXE_STATISTICS_TX_TOTAL_FRAMES      0x0A
1435#define PXE_STATISTICS_TX_GOOD_FRAMES       0x0B
1436#define PXE_STATISTICS_TX_UNDERSIZE_FRAMES  0x0C
1437#define PXE_STATISTICS_TX_OVERSIZE_FRAMES   0x0D
1438#define PXE_STATISTICS_TX_DROPPED_FRAMES    0x0E
1439#define PXE_STATISTICS_TX_UNICAST_FRAMES    0x0F
1440#define PXE_STATISTICS_TX_BROADCAST_FRAMES  0x10
1441#define PXE_STATISTICS_TX_MULTICAST_FRAMES  0x11
1442#define PXE_STATISTICS_TX_CRC_ERROR_FRAMES  0x12
1443#define PXE_STATISTICS_TX_TOTAL_BYTES       0x13
1444
1445///
1446/// Number of collisions detection on this subnet.
1447///
1448#define PXE_STATISTICS_COLLISIONS 0x14
1449
1450///
1451/// Number of frames destined for unsupported protocol.
1452///
1453#define PXE_STATISTICS_UNSUPPORTED_PROTOCOL 0x15
1454
1455///
1456/// Number of valid frames received that were duplicated.
1457///
1458#define PXE_STATISTICS_RX_DUPLICATED_FRAMES 0x16
1459
1460///
1461/// Number of encrypted frames received that failed to decrypt.
1462///
1463#define PXE_STATISTICS_RX_DECRYPT_ERROR_FRAMES 0x17
1464
1465///
1466/// Number of frames that failed to transmit after exceeding the retry limit.
1467///
1468#define PXE_STATISTICS_TX_ERROR_FRAMES 0x18
1469
1470///
1471/// Number of frames transmitted successfully after more than one attempt.
1472///
1473#define PXE_STATISTICS_TX_RETRY_FRAMES 0x19
1474
1475typedef struct s_pxe_cpb_mcast_ip_to_mac {
1476  ///
1477  /// Multicast IP address to be converted to multicast MAC address.
1478  ///
1479  PXE_IP_ADDR IP;
1480} PXE_CPB_MCAST_IP_TO_MAC;
1481
1482typedef struct s_pxe_db_mcast_ip_to_mac {
1483  ///
1484  /// Multicast MAC address.
1485  ///
1486  PXE_MAC_ADDR  MAC;
1487} PXE_DB_MCAST_IP_TO_MAC;
1488
1489typedef struct s_pxe_cpb_nvdata_sparse {
1490  ///
1491  /// NvData item list.  Only items in this list will be updated.
1492  ///
1493  struct {
1494    ///
1495    ///  Non-volatile storage address to be changed.
1496    ///
1497    PXE_UINT32  Addr;
1498
1499    ///
1500    /// Data item to write into above storage address.
1501    ///
1502    union {
1503      PXE_UINT8   Byte;
1504      PXE_UINT16  Word;
1505      PXE_UINT32  Dword;
1506    } Data;
1507  } Item[MAX_EEPROM_LEN];
1508} PXE_CPB_NVDATA_SPARSE;
1509
1510///
1511/// When using bulk update, the size of the CPB structure must be
1512/// the same size as the non-volatile NIC storage.
1513///
1514typedef union u_pxe_cpb_nvdata_bulk {
1515  ///
1516  /// Array of byte-wide data items.
1517  ///
1518  PXE_UINT8   Byte[MAX_EEPROM_LEN << 2];
1519
1520  ///
1521  /// Array of word-wide data items.
1522  ///
1523  PXE_UINT16  Word[MAX_EEPROM_LEN << 1];
1524
1525  ///
1526  /// Array of dword-wide data items.
1527  ///
1528  PXE_UINT32  Dword[MAX_EEPROM_LEN];
1529} PXE_CPB_NVDATA_BULK;
1530
1531typedef struct s_pxe_db_nvdata {
1532  ///
1533  /// Arrays of data items from non-volatile storage.
1534  ///
1535  union {
1536    ///
1537    /// Array of byte-wide data items.
1538    ///
1539    PXE_UINT8   Byte[MAX_EEPROM_LEN << 2];
1540
1541    ///
1542    /// Array of word-wide data items.
1543    ///
1544    PXE_UINT16  Word[MAX_EEPROM_LEN << 1];
1545
1546    ///
1547    /// Array of dword-wide data items.
1548    ///
1549    PXE_UINT32  Dword[MAX_EEPROM_LEN];
1550  } Data;
1551} PXE_DB_NVDATA;
1552
1553typedef struct s_pxe_db_get_status {
1554  ///
1555  /// Length of next receive frame (header + data).  If this is zero,
1556  /// there is no next receive frame available.
1557  ///
1558  PXE_UINT32  RxFrameLen;
1559
1560  ///
1561  /// Reserved, set to zero.
1562  ///
1563  PXE_UINT32  reserved;
1564
1565  ///
1566  ///  Addresses of transmitted buffers that need to be recycled.
1567  ///
1568  PXE_UINT64  TxBuffer[MAX_XMIT_BUFFERS];
1569} PXE_DB_GET_STATUS;
1570
1571typedef struct s_pxe_cpb_fill_header {
1572  ///
1573  /// Source and destination MAC addresses.  These will be copied into
1574  /// the media header without doing byte swapping.
1575  ///
1576  PXE_MAC_ADDR  SrcAddr;
1577  PXE_MAC_ADDR  DestAddr;
1578
1579  ///
1580  /// Address of first byte of media header.  The first byte of packet data
1581  /// follows the last byte of the media header.
1582  ///
1583  PXE_UINT64        MediaHeader;
1584
1585  ///
1586  /// Length of packet data in bytes (not including the media header).
1587  ///
1588  PXE_UINT32        PacketLen;
1589
1590  ///
1591  /// Protocol type.  This will be copied into the media header without
1592  /// doing byte swapping.  Protocol type numbers can be obtained from
1593  /// the Assigned Numbers RFC 1700.
1594  ///
1595  PXE_UINT16        Protocol;
1596
1597  ///
1598  /// Length of the media header in bytes.
1599  ///
1600  PXE_UINT16        MediaHeaderLen;
1601} PXE_CPB_FILL_HEADER;
1602
1603#define PXE_PROTOCOL_ETHERNET_IP  0x0800
1604#define PXE_PROTOCOL_ETHERNET_ARP 0x0806
1605#define MAX_XMIT_FRAGMENTS        16
1606
1607typedef struct s_pxe_cpb_fill_header_fragmented {
1608  ///
1609  /// Source and destination MAC addresses.  These will be copied into
1610  /// the media header without doing byte swapping.
1611  ///
1612  PXE_MAC_ADDR        SrcAddr;
1613  PXE_MAC_ADDR        DestAddr;
1614
1615  ///
1616  /// Length of packet data in bytes (not including the media header).
1617  ///
1618  PXE_UINT32          PacketLen;
1619
1620  ///
1621  /// Protocol type.  This will be copied into the media header without
1622  /// doing byte swapping.  Protocol type numbers can be obtained from
1623  /// the Assigned Numbers RFC 1700.
1624  ///
1625  PXE_MEDIA_PROTOCOL  Protocol;
1626
1627  ///
1628  /// Length of the media header in bytes.
1629  ///
1630  PXE_UINT16          MediaHeaderLen;
1631
1632  ///
1633  /// Number of packet fragment descriptors.
1634  ///
1635  PXE_UINT16          FragCnt;
1636
1637  ///
1638  /// Reserved, must be set to zero.
1639  ///
1640  PXE_UINT16          reserved;
1641
1642  ///
1643  /// Array of packet fragment descriptors.  The first byte of the media
1644  /// header is the first byte of the first fragment.
1645  ///
1646  struct {
1647    ///
1648    /// Address of this packet fragment.
1649    ///
1650    PXE_UINT64  FragAddr;
1651
1652    ///
1653    /// Length of this packet fragment.
1654    ///
1655    PXE_UINT32  FragLen;
1656
1657    ///
1658    /// Reserved, must be set to zero.
1659    ///
1660    PXE_UINT32  reserved;
1661  } FragDesc[MAX_XMIT_FRAGMENTS];
1662}
1663PXE_CPB_FILL_HEADER_FRAGMENTED;
1664
1665typedef struct s_pxe_cpb_transmit {
1666  ///
1667  /// Address of first byte of frame buffer.  This is also the first byte
1668  /// of the media header.
1669  ///
1670  PXE_UINT64  FrameAddr;
1671
1672  ///
1673  /// Length of the data portion of the frame buffer in bytes.  Do not
1674  /// include the length of the media header.
1675  ///
1676  PXE_UINT32  DataLen;
1677
1678  ///
1679  /// Length of the media header in bytes.
1680  ///
1681  PXE_UINT16  MediaheaderLen;
1682
1683  ///
1684  /// Reserved, must be zero.
1685  ///
1686  PXE_UINT16  reserved;
1687} PXE_CPB_TRANSMIT;
1688
1689typedef struct s_pxe_cpb_transmit_fragments {
1690  ///
1691  /// Length of packet data in bytes (not including the media header).
1692  ///
1693  PXE_UINT32  FrameLen;
1694
1695  ///
1696  /// Length of the media header in bytes.
1697  ///
1698  PXE_UINT16  MediaheaderLen;
1699
1700  ///
1701  /// Number of packet fragment descriptors.
1702  ///
1703  PXE_UINT16  FragCnt;
1704
1705  ///
1706  /// Array of frame fragment descriptors.  The first byte of the first
1707  /// fragment is also the first byte of the media header.
1708  ///
1709  struct {
1710    ///
1711    /// Address of this frame fragment.
1712    ///
1713    PXE_UINT64  FragAddr;
1714
1715    ///
1716    /// Length of this frame fragment.
1717    ///
1718    PXE_UINT32  FragLen;
1719
1720    ///
1721    /// Reserved, must be set to zero.
1722    ///
1723    PXE_UINT32  reserved;
1724  } FragDesc[MAX_XMIT_FRAGMENTS];
1725}
1726PXE_CPB_TRANSMIT_FRAGMENTS;
1727
1728typedef struct s_pxe_cpb_receive {
1729  ///
1730  /// Address of first byte of receive buffer.  This is also the first byte
1731  /// of the frame header.
1732  ///
1733  PXE_UINT64  BufferAddr;
1734
1735  ///
1736  /// Length of receive buffer.  This must be large enough to hold the
1737  /// received frame (media header + data).  If the length of smaller than
1738  /// the received frame, data will be lost.
1739  ///
1740  PXE_UINT32  BufferLen;
1741
1742  ///
1743  /// Reserved, must be set to zero.
1744  ///
1745  PXE_UINT32  reserved;
1746} PXE_CPB_RECEIVE;
1747
1748typedef struct s_pxe_db_receive {
1749  ///
1750  /// Source and destination MAC addresses from media header.
1751  ///
1752  PXE_MAC_ADDR        SrcAddr;
1753  PXE_MAC_ADDR        DestAddr;
1754
1755  ///
1756  /// Length of received frame.  May be larger than receive buffer size.
1757  /// The receive buffer will not be overwritten.  This is how to tell
1758  /// if data was lost because the receive buffer was too small.
1759  ///
1760  PXE_UINT32          FrameLen;
1761
1762  ///
1763  /// Protocol type from media header.
1764  ///
1765  PXE_MEDIA_PROTOCOL  Protocol;
1766
1767  ///
1768  /// Length of media header in received frame.
1769  ///
1770  PXE_UINT16          MediaHeaderLen;
1771
1772  ///
1773  /// Type of receive frame.
1774  ///
1775  PXE_FRAME_TYPE      Type;
1776
1777  ///
1778  /// Reserved, must be zero.
1779  ///
1780  PXE_UINT8           reserved[7];
1781
1782} PXE_DB_RECEIVE;
1783
1784#pragma pack()
1785
1786#endif
1787