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      1 /*	$NetBSD: efi_pxe.h,v 1.1.1.1 2014/04/01 16:16:07 jakllsch Exp $	*/
      2 
      3 #ifndef _EFI_PXE_H
      4 #define _EFI_PXE_H
      5 
      6 
      7 /*++
      8 Copyright (c) Intel  1999
      9 
     10 Module name:
     11     efi_pxe.h
     12 
     13 32/64-bit PXE specification:
     14     alpha-4, 99-Dec-17
     15 
     16 Abstract:
     17     This header file contains all of the PXE type definitions,
     18     structure prototypes, global variables and constants that
     19     are needed for porting PXE to EFI.
     20 --*/
     21 
     22 #pragma pack(1)
     23 
     24 #define PXE_INTEL_ORDER         1   // Intel order
     25 //#define PXE_NETWORK_ORDER         1   // network order
     26 
     27 #define PXE_UINT64_SUPPORT          1   // UINT64 supported
     28 //#define PXE_NO_UINT64_SUPPORT     1   // UINT64 not supported
     29 
     30 #define PXE_BUSTYPE(a,b,c,d)            \
     31 ((((PXE_UINT32)(d) & 0xFF) << 24) | \
     32 (((PXE_UINT32)(c) & 0xFF) << 16) |  \
     33 (((PXE_UINT32)(b) & 0xFF) << 8) |       \
     34 ((PXE_UINT32)(a) & 0xFF))
     35 
     36 //
     37 // UNDI ROM ID and devive ID signature
     38 //
     39 #define PXE_BUSTYPE_PXE         PXE_BUSTYPE('!', 'P', 'X', 'E')
     40 
     41 //
     42 // BUS ROM ID signatures
     43 //
     44 #define PXE_BUSTYPE_PCI         PXE_BUSTYPE('P', 'C', 'I', 'R')
     45 #define PXE_BUSTYPE_PC_CARD     PXE_BUSTYPE('P', 'C', 'C', 'R')
     46 #define PXE_BUSTYPE_USB         PXE_BUSTYPE('U', 'S', 'B', 'R')
     47 #define PXE_BUSTYPE_1394        PXE_BUSTYPE('1', '3', '9', '4')
     48 
     49 #define PXE_SWAP_UINT16(n)          \
     50 ((((PXE_UINT16)(n) & 0x00FF) << 8) |    \
     51 (((PXE_UINT16)(n) & 0xFF00) >> 8))
     52 
     53 #define PXE_SWAP_UINT32(n)              \
     54 ((((PXE_UINT32)(n) & 0x000000FF) << 24) |   \
     55 (((PXE_UINT32)(n) & 0x0000FF00) << 8) |     \
     56 (((PXE_UINT32)(n) & 0x00FF0000) >> 8) |     \
     57 (((PXE_UINT32)(n) & 0xFF000000) >> 24))
     58 
     59 #if PXE_UINT64_SUPPORT != 0
     60 #define PXE_SWAP_UINT64(n)                  \
     61 ((((PXE_UINT64)(n) & 0x00000000000000FF) << 56) |   \
     62 (((PXE_UINT64)(n) & 0x000000000000FF00) << 40) |    \
     63 (((PXE_UINT64)(n) & 0x0000000000FF0000) << 24) |    \
     64 (((PXE_UINT64)(n) & 0x00000000FF000000) << 8) | \
     65 (((PXE_UINT64)(n) & 0x000000FF00000000) >> 8) | \
     66 (((PXE_UINT64)(n) & 0x0000FF0000000000) >> 24) |    \
     67 (((PXE_UINT64)(n) & 0x00FF000000000000) >> 40) |    \
     68 (((PXE_UINT64)(n) & 0xFF00000000000000) >> 56))
     69 #endif // PXE_UINT64_SUPPORT
     70 
     71 #if PXE_NO_UINT64_SUPPORT != 0
     72 #define PXE_SWAP_UINT64(n)                      \
     73 {                                       \
     74 PXE_UINT32 tmp = (PXE_UINT64)(n)[1];                \
     75 (PXE_UINT64)(n)[1] = PXE_SWAP_UINT32((PXE_UINT64)(n)[0]);   \
     76 (PXE_UINT64)(n)[0] = tmp;                       \
     77 }
     78 #endif // PXE_NO_UINT64_SUPPORT
     79 
     80 #define PXE_CPBSIZE_NOT_USED            0   // zero
     81 #define PXE_DBSIZE_NOT_USED         0   // zero
     82 #define PXE_CPBADDR_NOT_USED        (PXE_UINT64)0       // zero
     83 #define PXE_DBADDR_NOT_USED     (PXE_UINT64)0       // zero
     84 
     85 #define PXE_CONST const
     86 
     87 #define PXE_VOLATILE volatile
     88 
     89 typedef void PXE_VOID;
     90 
     91 typedef unsigned char PXE_UINT8;
     92 
     93 typedef unsigned short PXE_UINT16;
     94 
     95 typedef unsigned PXE_UINT32;
     96 
     97 #if PXE_UINT64_SUPPORT != 0
     98 // typedef unsigned long PXE_UINT64;
     99 typedef UINT64 PXE_UINT64;
    100 #endif // PXE_UINT64_SUPPORT
    101 
    102 #if PXE_NO_UINT64_SUPPORT != 0
    103 typedef PXE_UINT32 PXE_UINT64[2];
    104 #endif // PXE_NO_UINT64_SUPPORT
    105 
    106 typedef unsigned PXE_UINTN;
    107 
    108 typedef PXE_UINT8 PXE_BOOL;
    109 
    110 #define PXE_FALSE               0   // zero
    111 #define PXE_TRUE                    (!PXE_FALSE)
    112 
    113 typedef PXE_UINT16 PXE_OPCODE;
    114 
    115 //
    116 // Return UNDI operational state.
    117 //
    118 #define PXE_OPCODE_GET_STATE                    0x0000
    119 
    120 //
    121 // Change UNDI operational state from Stopped to Started.
    122 //
    123 #define PXE_OPCODE_START                    0x0001
    124 
    125 //
    126 // Change UNDI operational state from Started to Stopped.
    127 //
    128 #define PXE_OPCODE_STOP                     0x0002
    129 
    130 //
    131 // Get UNDI initialization information.
    132 //
    133 #define PXE_OPCODE_GET_INIT_INFO                0x0003
    134 
    135 //
    136 // Get NIC configuration information.
    137 //
    138 #define PXE_OPCODE_GET_CONFIG_INFO              0x0004
    139 
    140 //
    141 // Changed UNDI operational state from Started to Initialized.
    142 //
    143 #define PXE_OPCODE_INITIALIZE                   0x0005
    144 
    145 //
    146 // Re-initialize the NIC H/W.
    147 //
    148 #define PXE_OPCODE_RESET                    0x0006
    149 
    150 //
    151 // Change the UNDI operational state from Initialized to Started.
    152 //
    153 #define PXE_OPCODE_SHUTDOWN                 0x0007
    154 
    155 //
    156 // Read & change state of external interrupt enables.
    157 //
    158 #define PXE_OPCODE_INTERRUPT_ENABLES                0x0008
    159 
    160 //
    161 // Read & change state of packet receive filters.
    162 //
    163 #define PXE_OPCODE_RECEIVE_FILTERS              0x0009
    164 
    165 //
    166 // Read & change station MAC address.
    167 //
    168 #define PXE_OPCODE_STATION_ADDRESS              0x000A
    169 
    170 //
    171 // Read traffic statistics.
    172 //
    173 #define PXE_OPCODE_STATISTICS                   0x000B
    174 
    175 //
    176 // Convert multicast IP address to multicast MAC address.
    177 //
    178 #define PXE_OPCODE_MCAST_IP_TO_MAC              0x000C
    179 
    180 //
    181 // Read or change non-volatile storage on the NIC.
    182 //
    183 #define PXE_OPCODE_NVDATA                   0x000D
    184 
    185 //
    186 // Get & clear interrupt status.
    187 //
    188 #define PXE_OPCODE_GET_STATUS                   0x000E
    189 
    190 //
    191 // Fill media header in packet for transmit.
    192 //
    193 #define PXE_OPCODE_FILL_HEADER              0x000F
    194 
    195 //
    196 // Transmit packet(s).
    197 //
    198 #define PXE_OPCODE_TRANSMIT                 0x0010
    199 
    200 //
    201 // Receive packet.
    202 //
    203 #define PXE_OPCODE_RECEIVE                  0x0011
    204 
    205 // last valid opcode:
    206 #define PXE_OPCODE_VALID_MAX                    0x0011
    207 
    208 //
    209 // Last valid PXE UNDI OpCode number.
    210 //
    211 #define PXE_OPCODE_LAST_VALID                   0x0011
    212 
    213 typedef PXE_UINT16 PXE_OPFLAGS;
    214 
    215 #define PXE_OPFLAGS_NOT_USED                    0x0000
    216 
    217 ////////////////////////////////////////
    218 // UNDI Get State
    219 //
    220 
    221 // No OpFlags
    222 
    223 ////////////////////////////////////////
    224 // UNDI Start
    225 //
    226 
    227 // No OpFlags
    228 
    229 ////////////////////////////////////////
    230 // UNDI Stop
    231 //
    232 
    233 // No OpFlags
    234 
    235 ////////////////////////////////////////
    236 // UNDI Get Init Info
    237 //
    238 
    239 // No Opflags
    240 
    241 ////////////////////////////////////////
    242 // UNDI Get Config Info
    243 //
    244 
    245 // No Opflags
    246 
    247 ////////////////////////////////////////
    248 // UNDI Initialize
    249 //
    250 
    251 #define PXE_OPFLAGS_INITIALIZE_CABLE_DETECT_MASK    0x0001
    252 #define PXE_OPFLAGS_INITIALIZE_DETECT_CABLE         0x0000
    253 #define PXE_OPFLAGS_INITIALIZE_DO_NOT_DETECT_CABLE  0x0001
    254 
    255 ////////////////////////////////////////
    256 // UNDI Reset
    257 //
    258 
    259 #define PXE_OPFLAGS_RESET_DISABLE_INTERRUPTS        0x0001
    260 #define PXE_OPFLAGS_RESET_DISABLE_FILTERS           0x0002
    261 
    262 ////////////////////////////////////////
    263 // UNDI Shutdown
    264 //
    265 
    266 // No OpFlags
    267 
    268 ////////////////////////////////////////
    269 // UNDI Interrupt Enables
    270 //
    271 
    272 //
    273 // Select whether to enable or disable external interrupt signals.
    274 // Setting both enable and disable will return PXE_STATCODE_INVALID_OPFLAGS.
    275 //
    276 #define PXE_OPFLAGS_INTERRUPT_OPMASK                0xC000
    277 #define PXE_OPFLAGS_INTERRUPT_ENABLE                0x8000
    278 #define PXE_OPFLAGS_INTERRUPT_DISABLE           0x4000
    279 #define PXE_OPFLAGS_INTERRUPT_READ              0x0000
    280 
    281 //
    282 // Enable receive interrupts.  An external interrupt will be generated
    283 // after a complete non-error packet has been received.
    284 //
    285 #define PXE_OPFLAGS_INTERRUPT_RECEIVE           0x0001
    286 
    287 //
    288 // Enable transmit interrupts.  An external interrupt will be generated
    289 // after a complete non-error packet has been transmitted.
    290 //
    291 #define PXE_OPFLAGS_INTERRUPT_TRANSMIT          0x0002
    292 
    293 //
    294 // Enable command interrupts.  An external interrupt will be generated
    295 // when command execution stops.
    296 //
    297 #define PXE_OPFLAGS_INTERRUPT_COMMAND           0x0004
    298 
    299 //
    300 // Generate software interrupt.  Setting this bit generates an external
    301 // interrupt, if it is supported by the hardware.
    302 //
    303 #define PXE_OPFLAGS_INTERRUPT_SOFTWARE          0x0008
    304 
    305 ////////////////////////////////////////
    306 // UNDI Receive Filters
    307 //
    308 
    309 //
    310 // Select whether to enable or disable receive filters.
    311 // Setting both enable and disable will return PXE_STATCODE_INVALID_OPCODE.
    312 //
    313 #define PXE_OPFLAGS_RECEIVE_FILTER_OPMASK           0xC000
    314 #define PXE_OPFLAGS_RECEIVE_FILTER_ENABLE           0x8000
    315 #define PXE_OPFLAGS_RECEIVE_FILTER_DISABLE          0x4000
    316 #define PXE_OPFLAGS_RECEIVE_FILTER_READ         0x0000
    317 
    318 //
    319 // To reset the contents of the multicast MAC address filter list,
    320 // set this OpFlag:
    321 //
    322 #define PXE_OPFLAGS_RECEIVE_FILTER_RESET_MCAST_LIST 0x2000
    323 
    324 //
    325 // Enable unicast packet receiving.  Packets sent to the current station
    326 // MAC address will be received.
    327 //
    328 #define PXE_OPFLAGS_RECEIVE_FILTER_UNICAST          0x0001
    329 
    330 //
    331 // Enable broadcast packet receiving.  Packets sent to the broadcast
    332 // MAC address will be received.
    333 //
    334 #define PXE_OPFLAGS_RECEIVE_FILTER_BROADCAST        0x0002
    335 
    336 //
    337 // Enable filtered multicast packet receiving.  Packets sent to any
    338 // of the multicast MAC addresses in the multicast MAC address filter
    339 // list will be received.  If the filter list is empty, no multicast
    340 //
    341 #define PXE_OPFLAGS_RECEIVE_FILTER_FILTERED_MULTICAST   0x0004
    342 
    343 //
    344 // Enable promiscuous packet receiving.  All packets will be received.
    345 //
    346 #define PXE_OPFLAGS_RECEIVE_FILTER_PROMISCUOUS      0x0008
    347 
    348 //
    349 // Enable promiscuous multicast packet receiving.  All multicast
    350 // packets will be received.
    351 //
    352 #define PXE_OPFLAGS_RECEIVE_FILTER_ALL_MULTICAST        0x0010
    353 
    354 ////////////////////////////////////////
    355 // UNDI Station Address
    356 //
    357 
    358 #define PXE_OPFLAGS_STATION_ADDRESS_READ            0x0000
    359 #define PXE_OPFLAGS_STATION_ADDRESS_RESET           0x0001
    360 
    361 ////////////////////////////////////////
    362 // UNDI Statistics
    363 //
    364 
    365 #define PXE_OPFLAGS_STATISTICS_READ             0x0000
    366 #define PXE_OPFLAGS_STATISTICS_RESET                0x0001
    367 
    368 ////////////////////////////////////////
    369 // UNDI MCast IP to MAC
    370 //
    371 
    372 //
    373 // Identify the type of IP address in the CPB.
    374 //
    375 #define PXE_OPFLAGS_MCAST_IP_TO_MAC_OPMASK          0x0003
    376 #define PXE_OPFLAGS_MCAST_IPV4_TO_MAC           0x0000
    377 #define PXE_OPFLAGS_MCAST_IPV6_TO_MAC           0x0001
    378 
    379 ////////////////////////////////////////
    380 // UNDI NvData
    381 //
    382 
    383 //
    384 // Select the type of non-volatile data operation.
    385 //
    386 #define PXE_OPFLAGS_NVDATA_OPMASK               0x0001
    387 #define PXE_OPFLAGS_NVDATA_READ             0x0000
    388 #define PXE_OPFLAGS_NVDATA_WRITE                0x0001
    389 
    390 ////////////////////////////////////////
    391 // UNDI Get Status
    392 //
    393 
    394 //
    395 // Return current interrupt status.  This will also clear any interrupts
    396 // that are currently set.  This can be used in a polling routine.  The
    397 // interrupt flags are still set and cleared even when the interrupts
    398 // are disabled.
    399 //
    400 #define PXE_OPFLAGS_GET_INTERRUPT_STATUS            0x0001
    401 
    402 //
    403 // Return list of transmitted buffers for recycling.  Transmit buffers
    404 // must not be changed or unallocated until they have recycled.  After
    405 // issuing a transmit command, wait for a transmit complete interrupt.
    406 // When a transmit complete interrupt is received, read the transmitted
    407 // buffers.  Do not plan on getting one buffer per interrupt.  Some
    408 // NICs and UNDIs may transmit multiple buffers per interrupt.
    409 //
    410 #define PXE_OPFLAGS_GET_TRANSMITTED_BUFFERS         0x0002
    411 
    412 ////////////////////////////////////////
    413 // UNDI Fill Header
    414 //
    415 
    416 #define PXE_OPFLAGS_FILL_HEADER_OPMASK          0x0001
    417 #define PXE_OPFLAGS_FILL_HEADER_FRAGMENTED          0x0001
    418 #define PXE_OPFLAGS_FILL_HEADER_WHOLE           0x0000
    419 
    420 ////////////////////////////////////////
    421 // UNDI Transmit
    422 //
    423 
    424 //
    425 // S/W UNDI only.  Return after the packet has been transmitted.  A
    426 // transmit complete interrupt will still be generated and the transmit
    427 // buffer will have to be recycled.
    428 //
    429 #define PXE_OPFLAGS_SWUNDI_TRANSMIT_OPMASK          0x0001
    430 #define PXE_OPFLAGS_TRANSMIT_BLOCK              0x0001
    431 #define PXE_OPFLAGS_TRANSMIT_DONT_BLOCK         0x0000
    432 
    433 //
    434 //
    435 //
    436 #define PXE_OPFLAGS_TRANSMIT_OPMASK             0x0002
    437 #define PXE_OPFLAGS_TRANSMIT_FRAGMENTED         0x0002
    438 #define PXE_OPFLAGS_TRANSMIT_WHOLE              0x0000
    439 
    440 ////////////////////////////////////////
    441 // UNDI Receive
    442 //
    443 
    444 // No OpFlags
    445 
    446 typedef PXE_UINT16 PXE_STATFLAGS;
    447 
    448 #define PXE_STATFLAGS_INITIALIZE                0x0000
    449 
    450 ////////////////////////////////////////
    451 // Common StatFlags that can be returned by all commands.
    452 //
    453 
    454 //
    455 // The COMMAND_COMPLETE and COMMAND_FAILED status flags must be
    456 // implemented by all UNDIs.  COMMAND_QUEUED is only needed by UNDIs
    457 // that support command queuing.
    458 //
    459 #define PXE_STATFLAGS_STATUS_MASK               0xC000
    460 #define PXE_STATFLAGS_COMMAND_COMPLETE          0xC000
    461 #define PXE_STATFLAGS_COMMAND_FAILED                0x8000
    462 #define PXE_STATFLAGS_COMMAND_QUEUED                0x4000
    463 //#define PXE_STATFLAGS_INITIALIZE              0x0000
    464 
    465 #define PXE_STATFLAGS_DB_WRITE_TRUNCATED            0x2000
    466 
    467 ////////////////////////////////////////
    468 // UNDI Get State
    469 //
    470 
    471 #define PXE_STATFLAGS_GET_STATE_MASK                0x0003
    472 #define PXE_STATFLAGS_GET_STATE_INITIALIZED         0x0002
    473 #define PXE_STATFLAGS_GET_STATE_STARTED         0x0001
    474 #define PXE_STATFLAGS_GET_STATE_STOPPED         0x0000
    475 
    476 ////////////////////////////////////////
    477 // UNDI Start
    478 //
    479 
    480 // No additional StatFlags
    481 
    482 ////////////////////////////////////////
    483 // UNDI Get Init Info
    484 //
    485 
    486 #define PXE_STATFLAGS_CABLE_DETECT_MASK          0x0001
    487 #define PXE_STATFLAGS_CABLE_DETECT_NOT_SUPPORTED 0x0000
    488 #define PXE_STATFLAGS_CABLE_DETECT_SUPPORTED     0x0001
    489 
    490 
    491 ////////////////////////////////////////
    492 // UNDI Initialize
    493 //
    494 
    495 #define PXE_STATFLAGS_INITIALIZED_NO_MEDIA          0x0001
    496 
    497 ////////////////////////////////////////
    498 // UNDI Reset
    499 //
    500 
    501 #define PXE_STATFLAGS_RESET_NO_MEDIA                0x0001
    502 
    503 ////////////////////////////////////////
    504 // UNDI Shutdown
    505 //
    506 
    507 // No additional StatFlags
    508 
    509 ////////////////////////////////////////
    510 // UNDI Interrupt Enables
    511 //
    512 
    513 //
    514 // If set, receive interrupts are enabled.
    515 //
    516 #define PXE_STATFLAGS_INTERRUPT_RECEIVE         0x0001
    517 
    518 //
    519 // If set, transmit interrupts are enabled.
    520 //
    521 #define PXE_STATFLAGS_INTERRUPT_TRANSMIT            0x0002
    522 
    523 //
    524 // If set, command interrupts are enabled.
    525 //
    526 #define PXE_STATFLAGS_INTERRUPT_COMMAND         0x0004
    527 
    528 
    529 ////////////////////////////////////////
    530 // UNDI Receive Filters
    531 //
    532 
    533 //
    534 // If set, unicast packets will be received.
    535 //
    536 #define PXE_STATFLAGS_RECEIVE_FILTER_UNICAST        0x0001
    537 
    538 //
    539 // If set, broadcast packets will be received.
    540 //
    541 #define PXE_STATFLAGS_RECEIVE_FILTER_BROADCAST      0x0002
    542 
    543 //
    544 // If set, multicast packets that match up with the multicast address
    545 // filter list will be received.
    546 //
    547 #define PXE_STATFLAGS_RECEIVE_FILTER_FILTERED_MULTICAST 0x0004
    548 
    549 //
    550 // If set, all packets will be received.
    551 //
    552 #define PXE_STATFLAGS_RECEIVE_FILTER_PROMISCUOUS        0x0008
    553 
    554 //
    555 // If set, all multicast packets will be received.
    556 //
    557 #define PXE_STATFLAGS_RECEIVE_FILTER_ALL_MULTICAST  0x0010
    558 
    559 ////////////////////////////////////////
    560 // UNDI Station Address
    561 //
    562 
    563 // No additional StatFlags
    564 
    565 ////////////////////////////////////////
    566 // UNDI Statistics
    567 //
    568 
    569 // No additional StatFlags
    570 
    571 ////////////////////////////////////////
    572 // UNDI MCast IP to MAC
    573 //
    574 
    575 // No additional StatFlags
    576 
    577 ////////////////////////////////////////
    578 // UNDI NvData
    579 //
    580 
    581 // No additional StatFlags
    582 
    583 
    584 ////////////////////////////////////////
    585 // UNDI Get Status
    586 //
    587 
    588 //
    589 // Use to determine if an interrupt has occurred.
    590 //
    591 #define PXE_STATFLAGS_GET_STATUS_INTERRUPT_MASK     0x000F
    592 #define PXE_STATFLAGS_GET_STATUS_NO_INTERRUPTS      0x0000
    593 
    594 //
    595 // If set, at least one receive interrupt occurred.
    596 //
    597 #define PXE_STATFLAGS_GET_STATUS_RECEIVE            0x0001
    598 
    599 //
    600 // If set, at least one transmit interrupt occurred.
    601 //
    602 #define PXE_STATFLAGS_GET_STATUS_TRANSMIT           0x0002
    603 
    604 //
    605 // If set, at least one command interrupt occurred.
    606 //
    607 #define PXE_STATFLAGS_GET_STATUS_COMMAND            0x0004
    608 
    609 //
    610 // If set, at least one software interrupt occurred.
    611 //
    612 #define PXE_STATFLAGS_GET_STATUS_SOFTWARE           0x0008
    613 
    614 //
    615 // This flag is set if the transmitted buffer queue is empty.  This flag
    616 // will be set if all transmitted buffer addresses get written into the DB.
    617 //
    618 #define PXE_STATFLAGS_GET_STATUS_TXBUF_QUEUE_EMPTY  0x0010
    619 
    620 //
    621 // This flag is set if no transmitted buffer addresses were written
    622 // into the DB.  (This could be because DBsize was too small.)
    623 //
    624 #define PXE_STATFLAGS_GET_STATUS_NO_TXBUFS_WRITTEN  0x0020
    625 
    626 ////////////////////////////////////////
    627 // UNDI Fill Header
    628 //
    629 
    630 // No additional StatFlags
    631 
    632 ////////////////////////////////////////
    633 // UNDI Transmit
    634 //
    635 
    636 // No additional StatFlags.
    637 
    638 ////////////////////////////////////////
    639 // UNDI Receive
    640 //
    641 
    642 // No additional StatFlags.
    643 
    644 typedef PXE_UINT16 PXE_STATCODE;
    645 
    646 #define PXE_STATCODE_INITIALIZE             0x0000
    647 
    648 ////////////////////////////////////////
    649 // Common StatCodes returned by all UNDI commands, UNDI protocol functions
    650 // and BC protocol functions.
    651 //
    652 
    653 #define PXE_STATCODE_SUCCESS                    0x0000
    654 
    655 #define PXE_STATCODE_INVALID_CDB                0x0001
    656 #define PXE_STATCODE_INVALID_CPB                0x0002
    657 #define PXE_STATCODE_BUSY                   	0x0003
    658 #define PXE_STATCODE_QUEUE_FULL             	0x0004
    659 #define PXE_STATCODE_ALREADY_STARTED            0x0005
    660 #define PXE_STATCODE_NOT_STARTED                0x0006
    661 #define PXE_STATCODE_NOT_SHUTDOWN               0x0007
    662 #define PXE_STATCODE_ALREADY_INITIALIZED        0x0008
    663 #define PXE_STATCODE_NOT_INITIALIZED            0x0009
    664 #define PXE_STATCODE_DEVICE_FAILURE             0x000A
    665 #define PXE_STATCODE_NVDATA_FAILURE             0x000B
    666 #define PXE_STATCODE_UNSUPPORTED                0x000C
    667 #define PXE_STATCODE_BUFFER_FULL                0x000D
    668 #define PXE_STATCODE_INVALID_PARAMETER		0x000E
    669 #define PXE_STATCODE_INVALID_UNDI		0x000F
    670 #define PXE_STATCODE_IPV4_NOT_SUPPORTED		0x0010
    671 #define PXE_STATCODE_IPV6_NOT_SUPPORTED		0x0011
    672 #define PXE_STATCODE_NOT_ENOUGH_MEMORY		0x0012
    673 #define PXE_STATCODE_NO_DATA			0x0013
    674 
    675 
    676 typedef PXE_UINT16 PXE_IFNUM;
    677 
    678 //
    679 // This interface number must be passed to the S/W UNDI Start command.
    680 //
    681 #define PXE_IFNUM_START                     0x0000
    682 
    683 //
    684 // This interface number is returned by the S/W UNDI Get State and
    685 // Start commands if information in the CDB, CPB or DB is invalid.
    686 //
    687 #define PXE_IFNUM_INVALID                   0x0000
    688 
    689 typedef PXE_UINT16 PXE_CONTROL;
    690 
    691 //
    692 // Setting this flag directs the UNDI to queue this command for later
    693 // execution if the UNDI is busy and it supports command queuing.
    694 // If queuing is not supported, a PXE_STATCODE_INVALID_CONTROL error
    695 // is returned.  If the queue is full, a PXE_STATCODE_CDB_QUEUE_FULL
    696 // error is returned.
    697 //
    698 #define PXE_CONTROL_QUEUE_IF_BUSY               0x0002
    699 
    700 //
    701 // These two bit values are used to determine if there are more UNDI
    702 // CDB structures following this one.  If the link bit is set, there
    703 // must be a CDB structure following this one.  Execution will start
    704 // on the next CDB structure as soon as this one completes successfully.
    705 // If an error is generated by this command, execution will stop.
    706 //
    707 #define PXE_CONTROL_LINK                    0x0001
    708 #define PXE_CONTROL_LAST_CDB_IN_LIST                0x0000
    709 
    710 typedef PXE_UINT8 PXE_FRAME_TYPE;
    711 
    712 #define PXE_FRAME_TYPE_NONE                 0x00
    713 #define PXE_FRAME_TYPE_UNICAST              0x01
    714 #define PXE_FRAME_TYPE_BROADCAST                0x02
    715 #define PXE_FRAME_TYPE_MULTICAST            0x03
    716 #define PXE_FRAME_TYPE_PROMISCUOUS              0x04
    717 
    718 typedef PXE_UINT32 PXE_IPV4;
    719 
    720 typedef PXE_UINT32 PXE_IPV6[4];
    721 #define PXE_MAC_LENGTH 32
    722 
    723 typedef PXE_UINT8 PXE_MAC_ADDR[PXE_MAC_LENGTH];
    724 
    725 typedef PXE_UINT8 PXE_IFTYPE;
    726 typedef PXE_UINT16 PXE_MEDIA_PROTOCOL;
    727 
    728 //
    729 // This information is from the ARP section of RFC 1700.
    730 //
    731 //     1 Ethernet (10Mb)                                    [JBP]
    732 //     2 Experimental Ethernet (3Mb)                        [JBP]
    733 //     3 Amateur Radio AX.25                                [PXK]
    734 //     4 Proteon ProNET Token Ring                          [JBP]
    735 //     5 Chaos                                              [GXP]
    736 //     6 IEEE 802 Networks                                  [JBP]
    737 //     7 ARCNET                                             [JBP]
    738 //     8 Hyperchannel                                       [JBP]
    739 //     9 Lanstar                                             [TU]
    740 //    10 Autonet Short Address                             [MXB1]
    741 //    11 LocalTalk                                         [JKR1]
    742 //    12 LocalNet (IBM PCNet or SYTEK LocalNET)             [JXM]
    743 //    13 Ultra link                                        [RXD2]
    744 //    14 SMDS                                              [GXC1]
    745 //    15 Frame Relay                                        [AGM]
    746 //    16 Asynchronous Transmission Mode (ATM)              [JXB2]
    747 //    17 HDLC                                               [JBP]
    748 //    18 Fibre Channel                            [Yakov Rekhter]
    749 //    19 Asynchronous Transmission Mode (ATM)      [Mark Laubach]
    750 //    20 Serial Line                                        [JBP]
    751 //    21 Asynchronous Transmission Mode (ATM)              [MXB1]
    752 //
    753 
    754 #define PXE_IFTYPE_ETHERNET                 0x01
    755 #define PXE_IFTYPE_TOKENRING                    0x04
    756 #define PXE_IFTYPE_FIBRE_CHANNEL                0x12
    757 
    758 typedef struct s_pxe_hw_undi {
    759 PXE_UINT32 Signature;       // PXE_ROMID_SIGNATURE
    760 PXE_UINT8 Len;          // sizeof(PXE_HW_UNDI)
    761 PXE_UINT8 Fudge;            // makes 8-bit cksum equal zero
    762 PXE_UINT8 Rev;          // PXE_ROMID_REV
    763 PXE_UINT8 IFcnt;            // physical connector count
    764 PXE_UINT8 MajorVer;         // PXE_ROMID_MAJORVER
    765 PXE_UINT8 MinorVer;         // PXE_ROMID_MINORVER
    766 PXE_UINT16 reserved;        // zero, not used
    767 PXE_UINT32 Implementation;      // implementation flags
    768 // reserved             // vendor use
    769 // PXE_UINT32 Status;       // status port
    770 // PXE_UINT32 Command;      // command port
    771 // PXE_UINT64 CDBaddr;      // CDB address port
    772 } PXE_HW_UNDI;
    773 
    774 //
    775 // Status port bit definitions
    776 //
    777 
    778 //
    779 // UNDI operation state
    780 //
    781 #define PXE_HWSTAT_STATE_MASK                   0xC0000000
    782 #define PXE_HWSTAT_BUSY                     0xC0000000
    783 #define PXE_HWSTAT_INITIALIZED              0x80000000
    784 #define PXE_HWSTAT_STARTED                  0x40000000
    785 #define PXE_HWSTAT_STOPPED                  0x00000000
    786 
    787 //
    788 // If set, last command failed
    789 //
    790 #define PXE_HWSTAT_COMMAND_FAILED               0x20000000
    791 
    792 //
    793 // If set, identifies enabled receive filters
    794 //
    795 #define PXE_HWSTAT_PROMISCUOUS_MULTICAST_RX_ENABLED 0x00001000
    796 #define PXE_HWSTAT_PROMISCUOUS_RX_ENABLED           0x00000800
    797 #define PXE_HWSTAT_BROADCAST_RX_ENABLED         0x00000400
    798 #define PXE_HWSTAT_MULTICAST_RX_ENABLED         0x00000200
    799 #define PXE_HWSTAT_UNICAST_RX_ENABLED           0x00000100
    800 
    801 //
    802 // If set, identifies enabled external interrupts
    803 //
    804 #define PXE_HWSTAT_SOFTWARE_INT_ENABLED         0x00000080
    805 #define PXE_HWSTAT_TX_COMPLETE_INT_ENABLED          0x00000040
    806 #define PXE_HWSTAT_PACKET_RX_INT_ENABLED            0x00000020
    807 #define PXE_HWSTAT_CMD_COMPLETE_INT_ENABLED         0x00000010
    808 
    809 //
    810 // If set, identifies pending interrupts
    811 //
    812 #define PXE_HWSTAT_SOFTWARE_INT_PENDING         0x00000008
    813 #define PXE_HWSTAT_TX_COMPLETE_INT_PENDING          0x00000004
    814 #define PXE_HWSTAT_PACKET_RX_INT_PENDING            0x00000002
    815 #define PXE_HWSTAT_CMD_COMPLETE_INT_PENDING         0x00000001
    816 
    817 //
    818 // Command port definitions
    819 //
    820 
    821 //
    822 // If set, CDB identified in CDBaddr port is given to UNDI.
    823 // If not set, other bits in this word will be processed.
    824 //
    825 #define PXE_HWCMD_ISSUE_COMMAND             0x80000000
    826 #define PXE_HWCMD_INTS_AND_FILTS                0x00000000
    827 
    828 //
    829 // Use these to enable/disable receive filters.
    830 //
    831 #define PXE_HWCMD_PROMISCUOUS_MULTICAST_RX_ENABLE       0x00001000
    832 #define PXE_HWCMD_PROMISCUOUS_RX_ENABLE         0x00000800
    833 #define PXE_HWCMD_BROADCAST_RX_ENABLE           0x00000400
    834 #define PXE_HWCMD_MULTICAST_RX_ENABLE           0x00000200
    835 #define PXE_HWCMD_UNICAST_RX_ENABLE             0x00000100
    836 
    837 //
    838 // Use these to enable/disable external interrupts
    839 //
    840 #define PXE_HWCMD_SOFTWARE_INT_ENABLE           0x00000080
    841 #define PXE_HWCMD_TX_COMPLETE_INT_ENABLE            0x00000040
    842 #define PXE_HWCMD_PACKET_RX_INT_ENABLE          0x00000020
    843 #define PXE_HWCMD_CMD_COMPLETE_INT_ENABLE           0x00000010
    844 
    845 //
    846 // Use these to clear pending external interrupts
    847 //
    848 #define PXE_HWCMD_CLEAR_SOFTWARE_INT                0x00000008
    849 #define PXE_HWCMD_CLEAR_TX_COMPLETE_INT         0x00000004
    850 #define PXE_HWCMD_CLEAR_PACKET_RX_INT           0x00000002
    851 #define PXE_HWCMD_CLEAR_CMD_COMPLETE_INT            0x00000001
    852 
    853 typedef struct s_pxe_sw_undi {
    854 PXE_UINT32 Signature;       // PXE_ROMID_SIGNATURE
    855 PXE_UINT8 Len;          // sizeof(PXE_SW_UNDI)
    856 PXE_UINT8 Fudge;            // makes 8-bit cksum zero
    857 PXE_UINT8 Rev;          // PXE_ROMID_REV
    858 PXE_UINT8 IFcnt;            // physical connector count
    859 PXE_UINT8 MajorVer;         // PXE_ROMID_MAJORVER
    860 PXE_UINT8 MinorVer;         // PXE_ROMID_MINORVER
    861 PXE_UINT16 reserved1;       // zero, not used
    862 PXE_UINT32 Implementation;      // Implementation flags
    863 PXE_UINT64 EntryPoint;      // API entry point
    864 PXE_UINT8 reserved2[3];     // zero, not used
    865 PXE_UINT8 BusCnt;           // number of bustypes supported
    866 PXE_UINT32 BusType[1];      // list of supported bustypes
    867 } PXE_SW_UNDI;
    868 
    869 typedef union u_pxe_undi {
    870 PXE_HW_UNDI hw;
    871 PXE_SW_UNDI sw;
    872 } PXE_UNDI;
    873 
    874 //
    875 // Signature of !PXE structure
    876 //
    877 #define PXE_ROMID_SIGNATURE     PXE_BUSTYPE('!', 'P', 'X', 'E')
    878 
    879 //
    880 // !PXE structure format revision
    881 //
    882 #define PXE_ROMID_REV                       0x02
    883 
    884 //
    885 // UNDI command interface revision.  These are the values that get sent
    886 // in option 94 (Client Network Interface Identifier) in the DHCP Discover
    887 // and PXE Boot Server Request packets.
    888 //
    889 #define PXE_ROMID_MAJORVER                  0x03
    890 #define PXE_ROMID_MINORVER                  0x00
    891 
    892 //
    893 // Implementation flags
    894 //
    895 #define PXE_ROMID_IMP_HW_UNDI                   0x80000000
    896 #define PXE_ROMID_IMP_SW_VIRT_ADDR              0x40000000
    897 #define PXE_ROMID_IMP_64BIT_DEVICE              0x00010000
    898 #define PXE_ROMID_IMP_FRAG_SUPPORTED                0x00008000
    899 #define PXE_ROMID_IMP_CMD_LINK_SUPPORTED            0x00004000
    900 #define PXE_ROMID_IMP_CMD_QUEUE_SUPPORTED           0x00002000
    901 #define PXE_ROMID_IMP_MULTI_FRAME_SUPPORTED         0x00001000
    902 #define PXE_ROMID_IMP_NVDATA_SUPPORT_MASK           0x00000C00
    903 #define PXE_ROMID_IMP_NVDATA_BULK_WRITABLE          0x00000C00
    904 #define PXE_ROMID_IMP_NVDATA_SPARSE_WRITABLE        0x00000800
    905 #define PXE_ROMID_IMP_NVDATA_READ_ONLY          0x00000400
    906 #define PXE_ROMID_IMP_NVDATA_NOT_AVAILABLE          0x00000000
    907 #define PXE_ROMID_IMP_STATISTICS_SUPPORTED          0x00000200
    908 #define PXE_ROMID_IMP_STATION_ADDR_SETTABLE         0x00000100
    909 #define PXE_ROMID_IMP_PROMISCUOUS_MULTICAST_RX_SUPPORTED    0x00000080
    910 #define PXE_ROMID_IMP_PROMISCUOUS_RX_SUPPORTED      0x00000040
    911 #define PXE_ROMID_IMP_BROADCAST_RX_SUPPORTED        0x00000020
    912 #define PXE_ROMID_IMP_FILTERED_MULTICAST_RX_SUPPORTED   0x00000010
    913 #define PXE_ROMID_IMP_SOFTWARE_INT_SUPPORTED        0x00000008
    914 #define PXE_ROMID_IMP_TX_COMPLETE_INT_SUPPORTED     0x00000004
    915 #define PXE_ROMID_IMP_PACKET_RX_INT_SUPPORTED       0x00000002
    916 #define PXE_ROMID_IMP_CMD_COMPLETE_INT_SUPPORTED        0x00000001
    917 
    918 
    919 typedef struct s_pxe_cdb {
    920 PXE_OPCODE OpCode;
    921 PXE_OPFLAGS OpFlags;
    922 PXE_UINT16 CPBsize;
    923 PXE_UINT16 DBsize;
    924 UINT64 CPBaddr;
    925 UINT64 DBaddr;
    926 PXE_STATCODE StatCode;
    927 PXE_STATFLAGS StatFlags;
    928 PXE_UINT16 IFnum;
    929 PXE_CONTROL Control;
    930 } PXE_CDB;
    931 
    932 
    933 typedef union u_pxe_ip_addr {
    934 PXE_IPV6 IPv6;
    935 PXE_IPV4 IPv4;
    936 } PXE_IP_ADDR;
    937 
    938 typedef union pxe_device {
    939 //
    940 // PCI and PC Card NICs are both identified using bus, device
    941 // and function numbers.  For PC Card, this may require PC
    942 // Card services to be loaded in the BIOS or preboot
    943 // environment.
    944 //
    945 struct {
    946 //
    947 // See S/W UNDI ROMID structure definition for PCI and
    948 // PCC BusType definitions.
    949 //
    950 PXE_UINT32 BusType;
    951 
    952 //
    953 // Bus, device & function numbers that locate this device.
    954 //
    955 PXE_UINT16 Bus;
    956 PXE_UINT8 Device;
    957 PXE_UINT8 Function;
    958 } PCI, PCC;
    959 
    960 //
    961 // %%TBD - More information is needed about enumerating
    962 // USB and 1394 devices.
    963 //
    964 struct {
    965 PXE_UINT32 BusType;
    966 PXE_UINT32 tdb;
    967 } USB, _1394;
    968 } PXE_DEVICE;
    969 
    970 // cpb and db definitions
    971 
    972 #define MAX_PCI_CONFIG_LEN 64   // # of dwords
    973 #define MAX_EEPROM_LEN 128       // #of dwords
    974 #define MAX_XMIT_BUFFERS    32  // recycling Q length for xmit_done
    975 #define MAX_MCAST_ADDRESS_CNT 8
    976 
    977 typedef struct s_pxe_cpb_start {
    978     //
    979     // PXE_VOID Delay(PXE_UINT64 microseconds);
    980     //
    981     // UNDI will never request a delay smaller than 10 microseconds
    982     // and will always request delays in increments of 10 microseconds.
    983     // The Delay() CallBack routine must delay between n and n + 10
    984     // microseconds before returning control to the UNDI.
    985     //
    986     // This field cannot be set to zero.
    987     //
    988     PXE_UINT64 Delay;
    989 
    990     //
    991     // PXE_VOID Block(PXE_UINT32 enable);
    992     //
    993     // UNDI may need to block multi-threaded/multi-processor access to
    994     // critical code sections when programming or accessing the network
    995     // device.  To this end, a blocking service is needed by the UNDI.
    996     // When UNDI needs a block, it will call Block() passing a non-zero
    997     // value.  When UNDI no longer needs a block, it will call Block()
    998     // with a zero value.  When called, if the Block() is already enabled,
    999     // do not return control to the UNDI until the previous Block() is
   1000     // disabled.
   1001     //
   1002     // This field cannot be set to zero.
   1003     //
   1004     PXE_UINT64 Block;
   1005 
   1006     //
   1007     // PXE_VOID Virt2Phys(PXE_UINT64 virtual, PXE_UINT64 physical_ptr);
   1008     //
   1009     // UNDI will pass the virtual address of a buffer and the virtual
   1010     // address of a 64-bit physical buffer.  Convert the virtual address
   1011     // to a physical address and write the result to the physical address
   1012     // buffer.  If virtual and physical addresses are the same, just
   1013     // copy the virtual address to the physical address buffer.
   1014     //
   1015     // This field can be set to zero if virtual and physical addresses
   1016     // are equal.
   1017     //
   1018     PXE_UINT64 Virt2Phys;
   1019     //
   1020     // PXE_VOID Mem_IO(PXE_UINT8 read_write, PXE_UINT8 len, PXE_UINT64 port,
   1021     //              PXE_UINT64 buf_addr);
   1022     //
   1023     // UNDI will read or write the device io space using this call back
   1024     // function. It passes the number of bytes as the len parameter and it
   1025     // will be either 1,2,4 or 8.
   1026     //
   1027     // This field can not be set to zero.
   1028     //
   1029     PXE_UINT64 Mem_IO;
   1030 } PXE_CPB_START;
   1031 
   1032 #define PXE_DELAY_MILLISECOND                   1000
   1033 #define PXE_DELAY_SECOND                    1000000
   1034 #define PXE_IO_READ                     0
   1035 #define PXE_IO_WRITE                        1
   1036 #define PXE_MEM_READ                        2
   1037 #define PXE_MEM_WRITE                       4
   1038 
   1039 
   1040 typedef struct s_pxe_db_get_init_info {
   1041     //
   1042     // Minimum length of locked memory buffer that must be given to
   1043     // the Initialize command. Giving UNDI more memory will generally
   1044     // give better performance.
   1045     //
   1046     // If MemoryRequired is zero, the UNDI does not need and will not
   1047     // use system memory to receive and transmit packets.
   1048     //
   1049     PXE_UINT32 MemoryRequired;
   1050 
   1051     //
   1052     // Maximum frame data length for Tx/Rx excluding the media header.
   1053     //
   1054     PXE_UINT32 FrameDataLen;
   1055 
   1056     //
   1057     // Supported link speeds are in units of mega bits.  Common ethernet
   1058     // values are 10, 100 and 1000.  Unused LinkSpeeds[] entries are zero
   1059     // filled.
   1060     //
   1061     PXE_UINT32 LinkSpeeds[4];
   1062 
   1063     //
   1064     // Number of non-volatile storage items.
   1065     //
   1066     PXE_UINT32 NvCount;
   1067 
   1068     //
   1069     // Width of non-volatile storage item in bytes.  0, 1, 2 or 4
   1070     //
   1071     PXE_UINT16 NvWidth;
   1072 
   1073     //
   1074     // Media header length.  This is the typical media header length for
   1075     // this UNDI.  This information is needed when allocating receive
   1076     // and transmit buffers.
   1077     //
   1078     PXE_UINT16 MediaHeaderLen;
   1079 
   1080     //
   1081     // Number of bytes in the NIC hardware (MAC) address.
   1082     //
   1083     PXE_UINT16 HWaddrLen;
   1084 
   1085     //
   1086     // Maximum number of multicast MAC addresses in the multicast
   1087     // MAC address filter list.
   1088     //
   1089     PXE_UINT16 MCastFilterCnt;
   1090 
   1091     //
   1092     // Default number and size of transmit and receive buffers that will
   1093     // be allocated by the UNDI.  If MemoryRequired is non-zero, this
   1094     // allocation will come out of the memory buffer given to the Initialize
   1095     // command.  If MemoryRequired is zero, this allocation will come out of
   1096     // memory on the NIC.
   1097     //
   1098     PXE_UINT16 TxBufCnt;
   1099     PXE_UINT16 TxBufSize;
   1100     PXE_UINT16 RxBufCnt;
   1101     PXE_UINT16 RxBufSize;
   1102 
   1103     //
   1104     // Hardware interface types defined in the Assigned Numbers RFC
   1105     // and used in DHCP and ARP packets.
   1106     // See the PXE_IFTYPE typedef and PXE_IFTYPE_xxx macros.
   1107     //
   1108     PXE_UINT8 IFtype;
   1109 
   1110     //
   1111     // Supported duplex.  See PXE_DUPLEX_xxxxx #defines below.
   1112     //
   1113     PXE_UINT8 Duplex;
   1114 
   1115     //
   1116     // Supported loopback options.  See PXE_LOOPBACK_xxxxx #defines below.
   1117     //
   1118     PXE_UINT8 LoopBack;
   1119 } PXE_DB_GET_INIT_INFO;
   1120 
   1121 #define PXE_MAX_TXRX_UNIT_ETHER             1500
   1122 
   1123 #define PXE_HWADDR_LEN_ETHER                    0x0006
   1124 #define PXE_MAC_HEADER_LEN_ETHER                0x000E
   1125 
   1126 #define PXE_DUPLEX_ENABLE_FULL_SUPPORTED            1
   1127 #define PXE_DUPLEX_FORCE_FULL_SUPPORTED         2
   1128 
   1129 #define PXE_LOOPBACK_INTERNAL_SUPPORTED         1
   1130 #define PXE_LOOPBACK_EXTERNAL_SUPPORTED         2
   1131 
   1132 
   1133 typedef struct s_pxe_pci_config_info {
   1134     //
   1135     // This is the flag field for the PXE_DB_GET_CONFIG_INFO union.
   1136     // For PCI bus devices, this field is set to PXE_BUSTYPE_PCI.
   1137     //
   1138     PXE_UINT32 BusType;
   1139 
   1140     //
   1141     // This identifies the PCI network device that this UNDI interface
   1142     // is bound to.
   1143     //
   1144     PXE_UINT16 Bus;
   1145     PXE_UINT8 Device;
   1146     PXE_UINT8 Function;
   1147 
   1148     //
   1149     // This is a copy of the PCI configuration space for this
   1150     // network device.
   1151     //
   1152     union {
   1153         PXE_UINT8 Byte[256];
   1154         PXE_UINT16 Word[128];
   1155         PXE_UINT32 Dword[64];
   1156     } Config;
   1157 } PXE_PCI_CONFIG_INFO;
   1158 
   1159 
   1160 typedef struct s_pxe_pcc_config_info {
   1161     //
   1162     // This is the flag field for the PXE_DB_GET_CONFIG_INFO union.
   1163     // For PCC bus devices, this field is set to PXE_BUSTYPE_PCC.
   1164     //
   1165     PXE_UINT32 BusType;
   1166 
   1167     //
   1168     // This identifies the PCC network device that this UNDI interface
   1169     // is bound to.
   1170     //
   1171     PXE_UINT16 Bus;
   1172     PXE_UINT8 Device;
   1173     PXE_UINT8 Function;
   1174 
   1175     //
   1176     // This is a copy of the PCC configuration space for this
   1177     // network device.
   1178     //
   1179     union {
   1180         PXE_UINT8 Byte[256];
   1181         PXE_UINT16 Word[128];
   1182         PXE_UINT32 Dword[64];
   1183     } Config;
   1184 } PXE_PCC_CONFIG_INFO;
   1185 
   1186 
   1187 typedef struct s_pxe_usb_config_info {
   1188     PXE_UINT32 BusType;
   1189     // %%TBD What should we return here...
   1190 } PXE_USB_CONFIG_INFO;
   1191 
   1192 
   1193 typedef struct s_pxe_1394_config_info {
   1194     PXE_UINT32 BusType;
   1195     // %%TBD What should we return here...
   1196 } PXE_1394_CONFIG_INFO;
   1197 
   1198 
   1199 typedef union u_pxe_db_get_config_info {
   1200     PXE_PCI_CONFIG_INFO pci;
   1201     PXE_PCC_CONFIG_INFO pcc;
   1202     PXE_USB_CONFIG_INFO usb;
   1203     PXE_1394_CONFIG_INFO _1394;
   1204 } PXE_DB_GET_CONFIG_INFO;
   1205 
   1206 
   1207 typedef struct s_pxe_cpb_initialize {
   1208     //
   1209     // Address of first (lowest) byte of the memory buffer.  This buffer must
   1210     // be in contiguous physical memory and cannot be swapped out.  The UNDI
   1211     // will be using this for transmit and receive buffering.
   1212     //
   1213     PXE_UINT64 MemoryAddr;
   1214 
   1215     //
   1216     // MemoryLength must be greater than or equal to MemoryRequired
   1217     // returned by the Get Init Info command.
   1218     //
   1219     PXE_UINT32 MemoryLength;
   1220 
   1221     //
   1222     // Desired link speed in Mbit/sec.  Common ethernet values are 10, 100
   1223     // and 1000.  Setting a value of zero will auto-detect and/or use the
   1224     // default link speed (operation depends on UNDI/NIC functionality).
   1225     //
   1226     PXE_UINT32 LinkSpeed;
   1227 
   1228     //
   1229     // Suggested number and size of receive and transmit buffers to
   1230     // allocate.  If MemoryAddr and MemoryLength are non-zero, this
   1231     // allocation comes out of the supplied memory buffer.  If MemoryAddr
   1232     // and MemoryLength are zero, this allocation comes out of memory
   1233     // on the NIC.
   1234     //
   1235     // If these fields are set to zero, the UNDI will allocate buffer
   1236     // counts and sizes as it sees fit.
   1237     //
   1238     PXE_UINT16 TxBufCnt;
   1239     PXE_UINT16 TxBufSize;
   1240     PXE_UINT16 RxBufCnt;
   1241     PXE_UINT16 RxBufSize;
   1242 
   1243     //
   1244     // The following configuration parameters are optional and must be zero
   1245     // to use the default values.
   1246     //
   1247     PXE_UINT8 Duplex;
   1248 
   1249     PXE_UINT8 LoopBack;
   1250 } PXE_CPB_INITIALIZE;
   1251 
   1252 
   1253 #define PXE_DUPLEX_DEFAULT                  0x00
   1254 #define PXE_FORCE_FULL_DUPLEX                   0x01
   1255 #define PXE_ENABLE_FULL_DUPLEX              0x02
   1256 
   1257 #define LOOPBACK_NORMAL 0
   1258 #define LOOPBACK_INTERNAL 1
   1259 #define LOOPBACK_EXTERNAL 2
   1260 
   1261 
   1262 typedef struct s_pxe_db_initialize {
   1263     //
   1264     // Actual amount of memory used from the supplied memory buffer.  This
   1265     // may be less that the amount of memory suppllied and may be zero if
   1266     // the UNDI and network device do not use external memory buffers.
   1267     //
   1268     // Memory used by the UNDI and network device is allocated from the
   1269     // lowest memory buffer address.
   1270     //
   1271     PXE_UINT32 MemoryUsed;
   1272 
   1273     //
   1274     // Actual number and size of receive and transmit buffers that were
   1275     // allocated.
   1276     //
   1277     PXE_UINT16 TxBufCnt;
   1278     PXE_UINT16 TxBufSize;
   1279     PXE_UINT16 RxBufCnt;
   1280     PXE_UINT16 RxBufSize;
   1281 } PXE_DB_INITIALIZE;
   1282 
   1283 
   1284 typedef struct s_pxe_cpb_receive_filters {
   1285     //
   1286     // List of multicast MAC addresses.  This list, if present, will
   1287     // replace the existing multicast MAC address filter list.
   1288     //
   1289     PXE_MAC_ADDR MCastList[MAX_MCAST_ADDRESS_CNT];
   1290 } PXE_CPB_RECEIVE_FILTERS;
   1291 
   1292 
   1293 typedef struct s_pxe_db_receive_filters {
   1294     //
   1295     // Filtered multicast MAC address list.
   1296     //
   1297     PXE_MAC_ADDR MCastList[MAX_MCAST_ADDRESS_CNT];
   1298 } PXE_DB_RECEIVE_FILTERS;
   1299 
   1300 
   1301 typedef struct s_pxe_cpb_station_address {
   1302     //
   1303     // If supplied and supported, the current station MAC address
   1304     // will be changed.
   1305     //
   1306     PXE_MAC_ADDR StationAddr;
   1307 } PXE_CPB_STATION_ADDRESS;
   1308 
   1309 
   1310 typedef struct s_pxe_dpb_station_address {
   1311     //
   1312     // Current station MAC address.
   1313     //
   1314     PXE_MAC_ADDR StationAddr;
   1315 
   1316     //
   1317     // Station broadcast MAC address.
   1318     //
   1319     PXE_MAC_ADDR BroadcastAddr;
   1320 
   1321     //
   1322     // Permanent station MAC address.
   1323     //
   1324     PXE_MAC_ADDR PermanentAddr;
   1325 } PXE_DB_STATION_ADDRESS;
   1326 
   1327 
   1328 typedef struct s_pxe_db_statistics {
   1329     //
   1330     // Bit field identifying what statistic data is collected by the
   1331     // UNDI/NIC.
   1332     // If bit 0x00 is set, Data[0x00] is collected.
   1333     // If bit 0x01 is set, Data[0x01] is collected.
   1334     // If bit 0x20 is set, Data[0x20] is collected.
   1335     // If bit 0x21 is set, Data[0x21] is collected.
   1336     // Etc.
   1337     //
   1338     PXE_UINT64 Supported;
   1339 
   1340     //
   1341     // Statistic data.
   1342     //
   1343     PXE_UINT64 Data[64];
   1344 } PXE_DB_STATISTICS;
   1345 
   1346 //
   1347 // Total number of frames received.  Includes frames with errors and
   1348 // dropped frames.
   1349 //
   1350 #define PXE_STATISTICS_RX_TOTAL_FRAMES          0x00
   1351 
   1352 //
   1353 // Number of valid frames received and copied into receive buffers.
   1354 //
   1355 #define PXE_STATISTICS_RX_GOOD_FRAMES           0x01
   1356 
   1357 //
   1358 // Number of frames below the minimum length for the media.
   1359 // This would be <64 for ethernet.
   1360 //
   1361 #define PXE_STATISTICS_RX_UNDERSIZE_FRAMES          0x02
   1362 
   1363 //
   1364 // Number of frames longer than the maxminum length for the
   1365 // media.  This would be >1500 for ethernet.
   1366 //
   1367 #define PXE_STATISTICS_RX_OVERSIZE_FRAMES           0x03
   1368 
   1369 //
   1370 // Valid frames that were dropped because receive buffers were full.
   1371 //
   1372 #define PXE_STATISTICS_RX_DROPPED_FRAMES            0x04
   1373 
   1374 //
   1375 // Number of valid unicast frames received and not dropped.
   1376 //
   1377 #define PXE_STATISTICS_RX_UNICAST_FRAMES            0x05
   1378 
   1379 //
   1380 // Number of valid broadcast frames received and not dropped.
   1381 //
   1382 #define PXE_STATISTICS_RX_BROADCAST_FRAMES          0x06
   1383 
   1384 //
   1385 // Number of valid mutlicast frames received and not dropped.
   1386 //
   1387 #define PXE_STATISTICS_RX_MULTICAST_FRAMES          0x07
   1388 
   1389 //
   1390 // Number of frames w/ CRC or alignment errors.
   1391 //
   1392 #define PXE_STATISTICS_RX_CRC_ERROR_FRAMES          0x08
   1393 
   1394 //
   1395 // Total number of bytes received.  Includes frames with errors
   1396 // and dropped frames.
   1397 //
   1398 #define PXE_STATISTICS_RX_TOTAL_BYTES           0x09
   1399 
   1400 //
   1401 // Transmit statistics.
   1402 //
   1403 #define PXE_STATISTICS_TX_TOTAL_FRAMES          0x0A
   1404 #define PXE_STATISTICS_TX_GOOD_FRAMES           0x0B
   1405 #define PXE_STATISTICS_TX_UNDERSIZE_FRAMES          0x0C
   1406 #define PXE_STATISTICS_TX_OVERSIZE_FRAMES           0x0D
   1407 #define PXE_STATISTICS_TX_DROPPED_FRAMES            0x0E
   1408 #define PXE_STATISTICS_TX_UNICAST_FRAMES            0x0F
   1409 #define PXE_STATISTICS_TX_BROADCAST_FRAMES          0x10
   1410 #define PXE_STATISTICS_TX_MULTICAST_FRAMES          0x11
   1411 #define PXE_STATISTICS_TX_CRC_ERROR_FRAMES          0x12
   1412 #define PXE_STATISTICS_TX_TOTAL_BYTES           0x13
   1413 
   1414 //
   1415 // Number of collisions detection on this subnet.
   1416 //
   1417 #define PXE_STATISTICS_COLLISIONS               0x14
   1418 
   1419 //
   1420 // Number of frames destined for unsupported protocol.
   1421 //
   1422 #define PXE_STATISTICS_UNSUPPORTED_PROTOCOL         0x15
   1423 
   1424 
   1425 typedef struct s_pxe_cpb_mcast_ip_to_mac {
   1426     //
   1427     // Multicast IP address to be converted to multicast MAC address.
   1428     //
   1429     PXE_IP_ADDR IP;
   1430 } PXE_CPB_MCAST_IP_TO_MAC;
   1431 
   1432 
   1433 typedef struct s_pxe_db_mcast_ip_to_mac {
   1434     //
   1435     // Multicast MAC address.
   1436     //
   1437     PXE_MAC_ADDR MAC;
   1438 } PXE_DB_MCAST_IP_TO_MAC;
   1439 
   1440 
   1441 typedef struct s_pxe_cpb_nvdata_sparse {
   1442     //
   1443     // NvData item list.  Only items in this list will be updated.
   1444     //
   1445     struct {
   1446         //  Non-volatile storage address to be changed.
   1447         PXE_UINT32 Addr;
   1448 
   1449         // Data item to write into above storage address.
   1450 
   1451         union {
   1452             PXE_UINT8 Byte;
   1453             PXE_UINT16 Word;
   1454             PXE_UINT32 Dword;
   1455         } Data;
   1456     } Item[MAX_EEPROM_LEN];
   1457 } PXE_CPB_NVDATA_SPARSE;
   1458 
   1459 
   1460 //
   1461 // When using bulk update, the size of the CPB structure must be
   1462 // the same size as the non-volatile NIC storage.
   1463 //
   1464 typedef union u_pxe_cpb_nvdata_bulk {
   1465     //
   1466     // Array of byte-wide data items.
   1467     //
   1468     PXE_UINT8 Byte[MAX_EEPROM_LEN << 2];
   1469 
   1470     //
   1471     // Array of word-wide data items.
   1472     //
   1473     PXE_UINT16 Word[MAX_EEPROM_LEN << 1];
   1474 
   1475     //
   1476     // Array of dword-wide data items.
   1477     //
   1478     PXE_UINT32 Dword[MAX_EEPROM_LEN];
   1479 } PXE_CPB_NVDATA_BULK;
   1480 
   1481 typedef struct s_pxe_db_nvdata {
   1482 
   1483     // Arrays of data items from non-volatile storage.
   1484 
   1485     union {
   1486         //
   1487         // Array of byte-wide data items.
   1488         //
   1489         PXE_UINT8 Byte[MAX_EEPROM_LEN << 2];
   1490 
   1491         //
   1492         // Array of word-wide data items.
   1493         //
   1494         PXE_UINT16 Word[MAX_EEPROM_LEN << 1];
   1495 
   1496         // Array of dword-wide data items.
   1497 
   1498         PXE_UINT32 Dword[MAX_EEPROM_LEN];
   1499     } Data;
   1500 } PXE_DB_NVDATA;
   1501 
   1502 
   1503 typedef struct s_pxe_db_get_status {
   1504     //
   1505     // Length of next receive frame (header + data).  If this is zero,
   1506     // there is no next receive frame available.
   1507     //
   1508     PXE_UINT32 RxFrameLen;
   1509 
   1510     //
   1511     // Reserved, set to zero.
   1512     //
   1513     PXE_UINT32 reserved;
   1514 
   1515     //
   1516     //  Addresses of transmitted buffers that need to be recycled.
   1517     //
   1518     PXE_UINT64 TxBuffer[MAX_XMIT_BUFFERS];
   1519 } PXE_DB_GET_STATUS;
   1520 
   1521 
   1522 
   1523 typedef struct s_pxe_cpb_fill_header {
   1524     //
   1525     // Source and destination MAC addresses.  These will be copied into
   1526     // the media header without doing byte swapping.
   1527     //
   1528     PXE_MAC_ADDR SrcAddr;
   1529     PXE_MAC_ADDR DestAddr;
   1530 
   1531     //
   1532     // Address of first byte of media header.  The first byte of packet data
   1533     // follows the last byte of the media header.
   1534     //
   1535     PXE_UINT64 MediaHeader;
   1536 
   1537     //
   1538     // Length of packet data in bytes (not including the media header).
   1539     //
   1540     PXE_UINT32 PacketLen;
   1541 
   1542     //
   1543     // Protocol type.  This will be copied into the media header without
   1544     // doing byte swapping.  Protocol type numbers can be obtained from
   1545     // the Assigned Numbers RFC 1700.
   1546     //
   1547     PXE_UINT16 Protocol;
   1548 
   1549     //
   1550     // Length of the media header in bytes.
   1551     //
   1552     PXE_UINT16 MediaHeaderLen;
   1553 } PXE_CPB_FILL_HEADER;
   1554 
   1555 
   1556 #define PXE_PROTOCOL_ETHERNET_IP                0x0800
   1557 #define PXE_PROTOCOL_ETHERNET_ARP               0x0806
   1558 #define MAX_XMIT_FRAGMENTS 16
   1559 
   1560 typedef struct s_pxe_cpb_fill_header_fragmented {
   1561     //
   1562     // Source and destination MAC addresses.  These will be copied into
   1563     // the media header without doing byte swapping.
   1564     //
   1565     PXE_MAC_ADDR SrcAddr;
   1566     PXE_MAC_ADDR DestAddr;
   1567 
   1568     //
   1569     // Length of packet data in bytes (not including the media header).
   1570     //
   1571     PXE_UINT32 PacketLen;
   1572 
   1573     //
   1574     // Protocol type.  This will be copied into the media header without
   1575     // doing byte swapping.  Protocol type numbers can be obtained from
   1576     // the Assigned Numbers RFC 1700.
   1577     //
   1578     PXE_MEDIA_PROTOCOL Protocol;
   1579 
   1580     //
   1581     // Length of the media header in bytes.
   1582     //
   1583     PXE_UINT16 MediaHeaderLen;
   1584 
   1585     //
   1586     // Number of packet fragment descriptors.
   1587     //
   1588     PXE_UINT16 FragCnt;
   1589 
   1590     //
   1591     // Reserved, must be set to zero.
   1592     //
   1593     PXE_UINT16 reserved;
   1594 
   1595     //
   1596     // Array of packet fragment descriptors.  The first byte of the media
   1597     // header is the first byte of the first fragment.
   1598     //
   1599     struct {
   1600         //
   1601         // Address of this packet fragment.
   1602         //
   1603         PXE_UINT64 FragAddr;
   1604 
   1605         //
   1606         // Length of this packet fragment.
   1607         //
   1608         PXE_UINT32 FragLen;
   1609 
   1610         //
   1611         // Reserved, must be set to zero.
   1612         //
   1613         PXE_UINT32 reserved;
   1614     } FragDesc[MAX_XMIT_FRAGMENTS];
   1615 } PXE_CPB_FILL_HEADER_FRAGMENTED;
   1616 
   1617 
   1618 
   1619 typedef struct s_pxe_cpb_transmit {
   1620     //
   1621     // Address of first byte of frame buffer.  This is also the first byte
   1622     // of the media header.
   1623     //
   1624     PXE_UINT64 FrameAddr;
   1625 
   1626     //
   1627     // Length of the data portion of the frame buffer in bytes.  Do not
   1628     // include the length of the media header.
   1629     //
   1630     PXE_UINT32 DataLen;
   1631 
   1632     //
   1633     // Length of the media header in bytes.
   1634     //
   1635     PXE_UINT16 MediaheaderLen;
   1636 
   1637     //
   1638     // Reserved, must be zero.
   1639     //
   1640     PXE_UINT16 reserved;
   1641 } PXE_CPB_TRANSMIT;
   1642 
   1643 
   1644 
   1645 typedef struct s_pxe_cpb_transmit_fragments {
   1646     //
   1647     // Length of packet data in bytes (not including the media header).
   1648     //
   1649     PXE_UINT32 FrameLen;
   1650 
   1651     //
   1652     // Length of the media header in bytes.
   1653     //
   1654     PXE_UINT16 MediaheaderLen;
   1655 
   1656     //
   1657     // Number of packet fragment descriptors.
   1658     //
   1659     PXE_UINT16 FragCnt;
   1660 
   1661     //
   1662     // Array of frame fragment descriptors.  The first byte of the first
   1663     // fragment is also the first byte of the media header.
   1664     //
   1665     struct {
   1666         //
   1667         // Address of this frame fragment.
   1668         //
   1669         PXE_UINT64 FragAddr;
   1670 
   1671         //
   1672         // Length of this frame fragment.
   1673         //
   1674         PXE_UINT32 FragLen;
   1675 
   1676         //
   1677         // Reserved, must be set to zero.
   1678         //
   1679         PXE_UINT32 reserved;
   1680     } FragDesc[MAX_XMIT_FRAGMENTS];
   1681 } PXE_CPB_TRANSMIT_FRAGMENTS;
   1682 
   1683 
   1684 typedef struct s_pxe_cpb_receive {
   1685     //
   1686     // Address of first byte of receive buffer.  This is also the first byte
   1687     // of the frame header.
   1688     //
   1689     PXE_UINT64 BufferAddr;
   1690 
   1691     //
   1692     // Length of receive buffer.  This must be large enough to hold the
   1693     // received frame (media header + data).  If the length of smaller than
   1694     // the received frame, data will be lost.
   1695     //
   1696     PXE_UINT32 BufferLen;
   1697 
   1698     //
   1699     // Reserved, must be set to zero.
   1700     //
   1701     PXE_UINT32 reserved;
   1702 } PXE_CPB_RECEIVE;
   1703 
   1704 
   1705 typedef struct s_pxe_db_receive {
   1706     //
   1707     // Source and destination MAC addresses from media header.
   1708     //
   1709     PXE_MAC_ADDR SrcAddr;
   1710     PXE_MAC_ADDR DestAddr;
   1711 
   1712     //
   1713     // Length of received frame.  May be larger than receive buffer size.
   1714     // The receive buffer will not be overwritten.  This is how to tell
   1715     // if data was lost because the receive buffer was too small.
   1716     //
   1717     PXE_UINT32 FrameLen;
   1718 
   1719     //
   1720     // Protocol type from media header.
   1721     //
   1722     PXE_MEDIA_PROTOCOL Protocol;
   1723 
   1724     //
   1725     // Length of media header in received frame.
   1726     //
   1727     PXE_UINT16 MediaHeaderLen;
   1728 
   1729     //
   1730     // Type of receive frame.
   1731     //
   1732     PXE_FRAME_TYPE Type;
   1733 
   1734     //
   1735     // Reserved, must be zero.
   1736     //
   1737     PXE_UINT8 reserved[7];
   1738 
   1739 } PXE_DB_RECEIVE;
   1740 
   1741 #pragma pack()
   1742 
   1743 /* EOF - efi_pxe.h */
   1744 #endif /* _EFI_PXE_H */
   1745 
   1746