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gnu-efi/inc/efi_pxe.h
Nigel Croxon 530d68ba19 The gnu-efi-3.0 toplevel subdirectory is really annoying. Kill it. 
Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Nigel Croxon <nigel.croxon@hp.com>
2014-11-25 10:09:50 -05:00

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#ifndef _EFI_PXE_H
#define _EFI_PXE_H
/*++
Copyright (c) Intel 1999
Module name:
efi_pxe.h
32/64-bit PXE specification:
alpha-4, 99-Dec-17
Abstract:
This header file contains all of the PXE type definitions,
structure prototypes, global variables and constants that
are needed for porting PXE to EFI.
--*/
#pragma pack(1)
#define PXE_INTEL_ORDER 1 // Intel order
//#define PXE_NETWORK_ORDER 1 // network order
#define PXE_UINT64_SUPPORT 1 // UINT64 supported
//#define PXE_NO_UINT64_SUPPORT 1 // UINT64 not supported
#define PXE_BUSTYPE(a,b,c,d) \
((((PXE_UINT32)(d) & 0xFF) << 24) | \
(((PXE_UINT32)(c) & 0xFF) << 16) | \
(((PXE_UINT32)(b) & 0xFF) << 8) | \
((PXE_UINT32)(a) & 0xFF))
//
// UNDI ROM ID and devive ID signature
//
#define PXE_BUSTYPE_PXE PXE_BUSTYPE('!', 'P', 'X', 'E')
//
// BUS ROM ID signatures
//
#define PXE_BUSTYPE_PCI PXE_BUSTYPE('P', 'C', 'I', 'R')
#define PXE_BUSTYPE_PC_CARD PXE_BUSTYPE('P', 'C', 'C', 'R')
#define PXE_BUSTYPE_USB PXE_BUSTYPE('U', 'S', 'B', 'R')
#define PXE_BUSTYPE_1394 PXE_BUSTYPE('1', '3', '9', '4')
#define PXE_SWAP_UINT16(n) \
((((PXE_UINT16)(n) & 0x00FF) << 8) | \
(((PXE_UINT16)(n) & 0xFF00) >> 8))
#define PXE_SWAP_UINT32(n) \
((((PXE_UINT32)(n) & 0x000000FF) << 24) | \
(((PXE_UINT32)(n) & 0x0000FF00) << 8) | \
(((PXE_UINT32)(n) & 0x00FF0000) >> 8) | \
(((PXE_UINT32)(n) & 0xFF000000) >> 24))
#if PXE_UINT64_SUPPORT != 0
#define PXE_SWAP_UINT64(n) \
((((PXE_UINT64)(n) & 0x00000000000000FF) << 56) | \
(((PXE_UINT64)(n) & 0x000000000000FF00) << 40) | \
(((PXE_UINT64)(n) & 0x0000000000FF0000) << 24) | \
(((PXE_UINT64)(n) & 0x00000000FF000000) << 8) | \
(((PXE_UINT64)(n) & 0x000000FF00000000) >> 8) | \
(((PXE_UINT64)(n) & 0x0000FF0000000000) >> 24) | \
(((PXE_UINT64)(n) & 0x00FF000000000000) >> 40) | \
(((PXE_UINT64)(n) & 0xFF00000000000000) >> 56))
#endif // PXE_UINT64_SUPPORT
#if PXE_NO_UINT64_SUPPORT != 0
#define PXE_SWAP_UINT64(n) \
{ \
PXE_UINT32 tmp = (PXE_UINT64)(n)[1]; \
(PXE_UINT64)(n)[1] = PXE_SWAP_UINT32((PXE_UINT64)(n)[0]); \
(PXE_UINT64)(n)[0] = tmp; \
}
#endif // PXE_NO_UINT64_SUPPORT
#define PXE_CPBSIZE_NOT_USED 0 // zero
#define PXE_DBSIZE_NOT_USED 0 // zero
#define PXE_CPBADDR_NOT_USED (PXE_UINT64)0 // zero
#define PXE_DBADDR_NOT_USED (PXE_UINT64)0 // zero
#define PXE_CONST const
#define PXE_VOLATILE volatile
typedef void PXE_VOID;
typedef unsigned char PXE_UINT8;
typedef unsigned short PXE_UINT16;
typedef unsigned PXE_UINT32;
#if PXE_UINT64_SUPPORT != 0
// typedef unsigned long PXE_UINT64;
typedef UINT64 PXE_UINT64;
#endif // PXE_UINT64_SUPPORT
#if PXE_NO_UINT64_SUPPORT != 0
typedef PXE_UINT32 PXE_UINT64[2];
#endif // PXE_NO_UINT64_SUPPORT
typedef unsigned PXE_UINTN;
typedef PXE_UINT8 PXE_BOOL;
#define PXE_FALSE 0 // zero
#define PXE_TRUE (!PXE_FALSE)
typedef PXE_UINT16 PXE_OPCODE;
//
// Return UNDI operational state.
//
#define PXE_OPCODE_GET_STATE 0x0000
//
// Change UNDI operational state from Stopped to Started.
//
#define PXE_OPCODE_START 0x0001
//
// Change UNDI operational state from Started to Stopped.
//
#define PXE_OPCODE_STOP 0x0002
//
// Get UNDI initialization information.
//
#define PXE_OPCODE_GET_INIT_INFO 0x0003
//
// Get NIC configuration information.
//
#define PXE_OPCODE_GET_CONFIG_INFO 0x0004
//
// Changed UNDI operational state from Started to Initialized.
//
#define PXE_OPCODE_INITIALIZE 0x0005
//
// Re-initialize the NIC H/W.
//
#define PXE_OPCODE_RESET 0x0006
//
// Change the UNDI operational state from Initialized to Started.
//
#define PXE_OPCODE_SHUTDOWN 0x0007
//
// Read & change state of external interrupt enables.
//
#define PXE_OPCODE_INTERRUPT_ENABLES 0x0008
//
// Read & change state of packet receive filters.
//
#define PXE_OPCODE_RECEIVE_FILTERS 0x0009
//
// Read & change station MAC address.
//
#define PXE_OPCODE_STATION_ADDRESS 0x000A
//
// Read traffic statistics.
//
#define PXE_OPCODE_STATISTICS 0x000B
//
// Convert multicast IP address to multicast MAC address.
//
#define PXE_OPCODE_MCAST_IP_TO_MAC 0x000C
//
// Read or change non-volatile storage on the NIC.
//
#define PXE_OPCODE_NVDATA 0x000D
//
// Get & clear interrupt status.
//
#define PXE_OPCODE_GET_STATUS 0x000E
//
// Fill media header in packet for transmit.
//
#define PXE_OPCODE_FILL_HEADER 0x000F
//
// Transmit packet(s).
//
#define PXE_OPCODE_TRANSMIT 0x0010
//
// Receive packet.
//
#define PXE_OPCODE_RECEIVE 0x0011
// last valid opcode:
#define PXE_OPCODE_VALID_MAX 0x0011
//
// Last valid PXE UNDI OpCode number.
//
#define PXE_OPCODE_LAST_VALID 0x0011
typedef PXE_UINT16 PXE_OPFLAGS;
#define PXE_OPFLAGS_NOT_USED 0x0000
////////////////////////////////////////
// UNDI Get State
//
// No OpFlags
////////////////////////////////////////
// UNDI Start
//
// No OpFlags
////////////////////////////////////////
// UNDI Stop
//
// No OpFlags
////////////////////////////////////////
// UNDI Get Init Info
//
// No Opflags
////////////////////////////////////////
// UNDI Get Config Info
//
// No Opflags
////////////////////////////////////////
// UNDI Initialize
//
#define PXE_OPFLAGS_INITIALIZE_CABLE_DETECT_MASK 0x0001
#define PXE_OPFLAGS_INITIALIZE_DETECT_CABLE 0x0000
#define PXE_OPFLAGS_INITIALIZE_DO_NOT_DETECT_CABLE 0x0001
////////////////////////////////////////
// UNDI Reset
//
#define PXE_OPFLAGS_RESET_DISABLE_INTERRUPTS 0x0001
#define PXE_OPFLAGS_RESET_DISABLE_FILTERS 0x0002
////////////////////////////////////////
// UNDI Shutdown
//
// No OpFlags
////////////////////////////////////////
// UNDI Interrupt Enables
//
//
// Select whether to enable or disable external interrupt signals.
// Setting both enable and disable will return PXE_STATCODE_INVALID_OPFLAGS.
//
#define PXE_OPFLAGS_INTERRUPT_OPMASK 0xC000
#define PXE_OPFLAGS_INTERRUPT_ENABLE 0x8000
#define PXE_OPFLAGS_INTERRUPT_DISABLE 0x4000
#define PXE_OPFLAGS_INTERRUPT_READ 0x0000
//
// Enable receive interrupts. An external interrupt will be generated
// after a complete non-error packet has been received.
//
#define PXE_OPFLAGS_INTERRUPT_RECEIVE 0x0001
//
// Enable transmit interrupts. An external interrupt will be generated
// after a complete non-error packet has been transmitted.
//
#define PXE_OPFLAGS_INTERRUPT_TRANSMIT 0x0002
//
// Enable command interrupts. An external interrupt will be generated
// when command execution stops.
//
#define PXE_OPFLAGS_INTERRUPT_COMMAND 0x0004
//
// Generate software interrupt. Setting this bit generates an external
// interrupt, if it is supported by the hardware.
//
#define PXE_OPFLAGS_INTERRUPT_SOFTWARE 0x0008
////////////////////////////////////////
// UNDI Receive Filters
//
//
// Select whether to enable or disable receive filters.
// Setting both enable and disable will return PXE_STATCODE_INVALID_OPCODE.
//
#define PXE_OPFLAGS_RECEIVE_FILTER_OPMASK 0xC000
#define PXE_OPFLAGS_RECEIVE_FILTER_ENABLE 0x8000
#define PXE_OPFLAGS_RECEIVE_FILTER_DISABLE 0x4000
#define PXE_OPFLAGS_RECEIVE_FILTER_READ 0x0000
//
// To reset the contents of the multicast MAC address filter list,
// set this OpFlag:
//
#define PXE_OPFLAGS_RECEIVE_FILTER_RESET_MCAST_LIST 0x2000
//
// Enable unicast packet receiving. Packets sent to the current station
// MAC address will be received.
//
#define PXE_OPFLAGS_RECEIVE_FILTER_UNICAST 0x0001
//
// Enable broadcast packet receiving. Packets sent to the broadcast
// MAC address will be received.
//
#define PXE_OPFLAGS_RECEIVE_FILTER_BROADCAST 0x0002
//
// Enable filtered multicast packet receiving. Packets sent to any
// of the multicast MAC addresses in the multicast MAC address filter
// list will be received. If the filter list is empty, no multicast
//
#define PXE_OPFLAGS_RECEIVE_FILTER_FILTERED_MULTICAST 0x0004
//
// Enable promiscuous packet receiving. All packets will be received.
//
#define PXE_OPFLAGS_RECEIVE_FILTER_PROMISCUOUS 0x0008
//
// Enable promiscuous multicast packet receiving. All multicast
// packets will be received.
//
#define PXE_OPFLAGS_RECEIVE_FILTER_ALL_MULTICAST 0x0010
////////////////////////////////////////
// UNDI Station Address
//
#define PXE_OPFLAGS_STATION_ADDRESS_READ 0x0000
#define PXE_OPFLAGS_STATION_ADDRESS_RESET 0x0001
////////////////////////////////////////
// UNDI Statistics
//
#define PXE_OPFLAGS_STATISTICS_READ 0x0000
#define PXE_OPFLAGS_STATISTICS_RESET 0x0001
////////////////////////////////////////
// UNDI MCast IP to MAC
//
//
// Identify the type of IP address in the CPB.
//
#define PXE_OPFLAGS_MCAST_IP_TO_MAC_OPMASK 0x0003
#define PXE_OPFLAGS_MCAST_IPV4_TO_MAC 0x0000
#define PXE_OPFLAGS_MCAST_IPV6_TO_MAC 0x0001
////////////////////////////////////////
// UNDI NvData
//
//
// Select the type of non-volatile data operation.
//
#define PXE_OPFLAGS_NVDATA_OPMASK 0x0001
#define PXE_OPFLAGS_NVDATA_READ 0x0000
#define PXE_OPFLAGS_NVDATA_WRITE 0x0001
////////////////////////////////////////
// UNDI Get Status
//
//
// Return current interrupt status. This will also clear any interrupts
// that are currently set. This can be used in a polling routine. The
// interrupt flags are still set and cleared even when the interrupts
// are disabled.
//
#define PXE_OPFLAGS_GET_INTERRUPT_STATUS 0x0001
//
// Return list of transmitted buffers for recycling. Transmit buffers
// must not be changed or unallocated until they have recycled. After
// issuing a transmit command, wait for a transmit complete interrupt.
// When a transmit complete interrupt is received, read the transmitted
// buffers. Do not plan on getting one buffer per interrupt. Some
// NICs and UNDIs may transmit multiple buffers per interrupt.
//
#define PXE_OPFLAGS_GET_TRANSMITTED_BUFFERS 0x0002
////////////////////////////////////////
// UNDI Fill Header
//
#define PXE_OPFLAGS_FILL_HEADER_OPMASK 0x0001
#define PXE_OPFLAGS_FILL_HEADER_FRAGMENTED 0x0001
#define PXE_OPFLAGS_FILL_HEADER_WHOLE 0x0000
////////////////////////////////////////
// UNDI Transmit
//
//
// S/W UNDI only. Return after the packet has been transmitted. A
// transmit complete interrupt will still be generated and the transmit
// buffer will have to be recycled.
//
#define PXE_OPFLAGS_SWUNDI_TRANSMIT_OPMASK 0x0001
#define PXE_OPFLAGS_TRANSMIT_BLOCK 0x0001
#define PXE_OPFLAGS_TRANSMIT_DONT_BLOCK 0x0000
//
//
//
#define PXE_OPFLAGS_TRANSMIT_OPMASK 0x0002
#define PXE_OPFLAGS_TRANSMIT_FRAGMENTED 0x0002
#define PXE_OPFLAGS_TRANSMIT_WHOLE 0x0000
////////////////////////////////////////
// UNDI Receive
//
// No OpFlags
typedef PXE_UINT16 PXE_STATFLAGS;
#define PXE_STATFLAGS_INITIALIZE 0x0000
////////////////////////////////////////
// Common StatFlags that can be returned by all commands.
//
//
// The COMMAND_COMPLETE and COMMAND_FAILED status flags must be
// implemented by all UNDIs. COMMAND_QUEUED is only needed by UNDIs
// that support command queuing.
//
#define PXE_STATFLAGS_STATUS_MASK 0xC000
#define PXE_STATFLAGS_COMMAND_COMPLETE 0xC000
#define PXE_STATFLAGS_COMMAND_FAILED 0x8000
#define PXE_STATFLAGS_COMMAND_QUEUED 0x4000
//#define PXE_STATFLAGS_INITIALIZE 0x0000
#define PXE_STATFLAGS_DB_WRITE_TRUNCATED 0x2000
////////////////////////////////////////
// UNDI Get State
//
#define PXE_STATFLAGS_GET_STATE_MASK 0x0003
#define PXE_STATFLAGS_GET_STATE_INITIALIZED 0x0002
#define PXE_STATFLAGS_GET_STATE_STARTED 0x0001
#define PXE_STATFLAGS_GET_STATE_STOPPED 0x0000
////////////////////////////////////////
// UNDI Start
//
// No additional StatFlags
////////////////////////////////////////
// UNDI Get Init Info
//
#define PXE_STATFLAGS_CABLE_DETECT_MASK 0x0001
#define PXE_STATFLAGS_CABLE_DETECT_NOT_SUPPORTED 0x0000
#define PXE_STATFLAGS_CABLE_DETECT_SUPPORTED 0x0001
////////////////////////////////////////
// UNDI Initialize
//
#define PXE_STATFLAGS_INITIALIZED_NO_MEDIA 0x0001
////////////////////////////////////////
// UNDI Reset
//
#define PXE_STATFLAGS_RESET_NO_MEDIA 0x0001
////////////////////////////////////////
// UNDI Shutdown
//
// No additional StatFlags
////////////////////////////////////////
// UNDI Interrupt Enables
//
//
// If set, receive interrupts are enabled.
//
#define PXE_STATFLAGS_INTERRUPT_RECEIVE 0x0001
//
// If set, transmit interrupts are enabled.
//
#define PXE_STATFLAGS_INTERRUPT_TRANSMIT 0x0002
//
// If set, command interrupts are enabled.
//
#define PXE_STATFLAGS_INTERRUPT_COMMAND 0x0004
////////////////////////////////////////
// UNDI Receive Filters
//
//
// If set, unicast packets will be received.
//
#define PXE_STATFLAGS_RECEIVE_FILTER_UNICAST 0x0001
//
// If set, broadcast packets will be received.
//
#define PXE_STATFLAGS_RECEIVE_FILTER_BROADCAST 0x0002
//
// If set, multicast packets that match up with the multicast address
// filter list will be received.
//
#define PXE_STATFLAGS_RECEIVE_FILTER_FILTERED_MULTICAST 0x0004
//
// If set, all packets will be received.
//
#define PXE_STATFLAGS_RECEIVE_FILTER_PROMISCUOUS 0x0008
//
// If set, all multicast packets will be received.
//
#define PXE_STATFLAGS_RECEIVE_FILTER_ALL_MULTICAST 0x0010
////////////////////////////////////////
// UNDI Station Address
//
// No additional StatFlags
////////////////////////////////////////
// UNDI Statistics
//
// No additional StatFlags
////////////////////////////////////////
// UNDI MCast IP to MAC
//
// No additional StatFlags
////////////////////////////////////////
// UNDI NvData
//
// No additional StatFlags
////////////////////////////////////////
// UNDI Get Status
//
//
// Use to determine if an interrupt has occurred.
//
#define PXE_STATFLAGS_GET_STATUS_INTERRUPT_MASK 0x000F
#define PXE_STATFLAGS_GET_STATUS_NO_INTERRUPTS 0x0000
//
// If set, at least one receive interrupt occurred.
//
#define PXE_STATFLAGS_GET_STATUS_RECEIVE 0x0001
//
// If set, at least one transmit interrupt occurred.
//
#define PXE_STATFLAGS_GET_STATUS_TRANSMIT 0x0002
//
// If set, at least one command interrupt occurred.
//
#define PXE_STATFLAGS_GET_STATUS_COMMAND 0x0004
//
// If set, at least one software interrupt occurred.
//
#define PXE_STATFLAGS_GET_STATUS_SOFTWARE 0x0008
//
// This flag is set if the transmitted buffer queue is empty. This flag
// will be set if all transmitted buffer addresses get written into the DB.
//
#define PXE_STATFLAGS_GET_STATUS_TXBUF_QUEUE_EMPTY 0x0010
//
// This flag is set if no transmitted buffer addresses were written
// into the DB. (This could be because DBsize was too small.)
//
#define PXE_STATFLAGS_GET_STATUS_NO_TXBUFS_WRITTEN 0x0020
////////////////////////////////////////
// UNDI Fill Header
//
// No additional StatFlags
////////////////////////////////////////
// UNDI Transmit
//
// No additional StatFlags.
////////////////////////////////////////
// UNDI Receive
//
// No additional StatFlags.
typedef PXE_UINT16 PXE_STATCODE;
#define PXE_STATCODE_INITIALIZE 0x0000
////////////////////////////////////////
// Common StatCodes returned by all UNDI commands, UNDI protocol functions
// and BC protocol functions.
//
#define PXE_STATCODE_SUCCESS 0x0000
#define PXE_STATCODE_INVALID_CDB 0x0001
#define PXE_STATCODE_INVALID_CPB 0x0002
#define PXE_STATCODE_BUSY 0x0003
#define PXE_STATCODE_QUEUE_FULL 0x0004
#define PXE_STATCODE_ALREADY_STARTED 0x0005
#define PXE_STATCODE_NOT_STARTED 0x0006
#define PXE_STATCODE_NOT_SHUTDOWN 0x0007
#define PXE_STATCODE_ALREADY_INITIALIZED 0x0008
#define PXE_STATCODE_NOT_INITIALIZED 0x0009
#define PXE_STATCODE_DEVICE_FAILURE 0x000A
#define PXE_STATCODE_NVDATA_FAILURE 0x000B
#define PXE_STATCODE_UNSUPPORTED 0x000C
#define PXE_STATCODE_BUFFER_FULL 0x000D
#define PXE_STATCODE_INVALID_PARAMETER 0x000E
#define PXE_STATCODE_INVALID_UNDI 0x000F
#define PXE_STATCODE_IPV4_NOT_SUPPORTED 0x0010
#define PXE_STATCODE_IPV6_NOT_SUPPORTED 0x0011
#define PXE_STATCODE_NOT_ENOUGH_MEMORY 0x0012
#define PXE_STATCODE_NO_DATA 0x0013
typedef PXE_UINT16 PXE_IFNUM;
//
// This interface number must be passed to the S/W UNDI Start command.
//
#define PXE_IFNUM_START 0x0000
//
// This interface number is returned by the S/W UNDI Get State and
// Start commands if information in the CDB, CPB or DB is invalid.
//
#define PXE_IFNUM_INVALID 0x0000
typedef PXE_UINT16 PXE_CONTROL;
//
// Setting this flag directs the UNDI to queue this command for later
// execution if the UNDI is busy and it supports command queuing.
// If queuing is not supported, a PXE_STATCODE_INVALID_CONTROL error
// is returned. If the queue is full, a PXE_STATCODE_CDB_QUEUE_FULL
// error is returned.
//
#define PXE_CONTROL_QUEUE_IF_BUSY 0x0002
//
// These two bit values are used to determine if there are more UNDI
// CDB structures following this one. If the link bit is set, there
// must be a CDB structure following this one. Execution will start
// on the next CDB structure as soon as this one completes successfully.
// If an error is generated by this command, execution will stop.
//
#define PXE_CONTROL_LINK 0x0001
#define PXE_CONTROL_LAST_CDB_IN_LIST 0x0000
typedef PXE_UINT8 PXE_FRAME_TYPE;
#define PXE_FRAME_TYPE_NONE 0x00
#define PXE_FRAME_TYPE_UNICAST 0x01
#define PXE_FRAME_TYPE_BROADCAST 0x02
#define PXE_FRAME_TYPE_MULTICAST 0x03
#define PXE_FRAME_TYPE_PROMISCUOUS 0x04
typedef PXE_UINT32 PXE_IPV4;
typedef PXE_UINT32 PXE_IPV6[4];
#define PXE_MAC_LENGTH 32
typedef PXE_UINT8 PXE_MAC_ADDR[PXE_MAC_LENGTH];
typedef PXE_UINT8 PXE_IFTYPE;
typedef PXE_UINT16 PXE_MEDIA_PROTOCOL;
//
// This information is from the ARP section of RFC 1700.
//
// 1 Ethernet (10Mb) [JBP]
// 2 Experimental Ethernet (3Mb) [JBP]
// 3 Amateur Radio AX.25 [PXK]
// 4 Proteon ProNET Token Ring [JBP]
// 5 Chaos [GXP]
// 6 IEEE 802 Networks [JBP]
// 7 ARCNET [JBP]
// 8 Hyperchannel [JBP]
// 9 Lanstar [TU]
// 10 Autonet Short Address [MXB1]
// 11 LocalTalk [JKR1]
// 12 LocalNet (IBM PCNet or SYTEK LocalNET) [JXM]
// 13 Ultra link [RXD2]
// 14 SMDS [GXC1]
// 15 Frame Relay [AGM]
// 16 Asynchronous Transmission Mode (ATM) [JXB2]
// 17 HDLC [JBP]
// 18 Fibre Channel [Yakov Rekhter]
// 19 Asynchronous Transmission Mode (ATM) [Mark Laubach]
// 20 Serial Line [JBP]
// 21 Asynchronous Transmission Mode (ATM) [MXB1]
//
#define PXE_IFTYPE_ETHERNET 0x01
#define PXE_IFTYPE_TOKENRING 0x04
#define PXE_IFTYPE_FIBRE_CHANNEL 0x12
typedef struct s_pxe_hw_undi {
PXE_UINT32 Signature; // PXE_ROMID_SIGNATURE
PXE_UINT8 Len; // sizeof(PXE_HW_UNDI)
PXE_UINT8 Fudge; // makes 8-bit cksum equal zero
PXE_UINT8 Rev; // PXE_ROMID_REV
PXE_UINT8 IFcnt; // physical connector count
PXE_UINT8 MajorVer; // PXE_ROMID_MAJORVER
PXE_UINT8 MinorVer; // PXE_ROMID_MINORVER
PXE_UINT16 reserved; // zero, not used
PXE_UINT32 Implementation; // implementation flags
// reserved // vendor use
// PXE_UINT32 Status; // status port
// PXE_UINT32 Command; // command port
// PXE_UINT64 CDBaddr; // CDB address port
} PXE_HW_UNDI;
//
// Status port bit definitions
//
//
// UNDI operation state
//
#define PXE_HWSTAT_STATE_MASK 0xC0000000
#define PXE_HWSTAT_BUSY 0xC0000000
#define PXE_HWSTAT_INITIALIZED 0x80000000
#define PXE_HWSTAT_STARTED 0x40000000
#define PXE_HWSTAT_STOPPED 0x00000000
//
// If set, last command failed
//
#define PXE_HWSTAT_COMMAND_FAILED 0x20000000
//
// If set, identifies enabled receive filters
//
#define PXE_HWSTAT_PROMISCUOUS_MULTICAST_RX_ENABLED 0x00001000
#define PXE_HWSTAT_PROMISCUOUS_RX_ENABLED 0x00000800
#define PXE_HWSTAT_BROADCAST_RX_ENABLED 0x00000400
#define PXE_HWSTAT_MULTICAST_RX_ENABLED 0x00000200
#define PXE_HWSTAT_UNICAST_RX_ENABLED 0x00000100
//
// If set, identifies enabled external interrupts
//
#define PXE_HWSTAT_SOFTWARE_INT_ENABLED 0x00000080
#define PXE_HWSTAT_TX_COMPLETE_INT_ENABLED 0x00000040
#define PXE_HWSTAT_PACKET_RX_INT_ENABLED 0x00000020
#define PXE_HWSTAT_CMD_COMPLETE_INT_ENABLED 0x00000010
//
// If set, identifies pending interrupts
//
#define PXE_HWSTAT_SOFTWARE_INT_PENDING 0x00000008
#define PXE_HWSTAT_TX_COMPLETE_INT_PENDING 0x00000004
#define PXE_HWSTAT_PACKET_RX_INT_PENDING 0x00000002
#define PXE_HWSTAT_CMD_COMPLETE_INT_PENDING 0x00000001
//
// Command port definitions
//
//
// If set, CDB identified in CDBaddr port is given to UNDI.
// If not set, other bits in this word will be processed.
//
#define PXE_HWCMD_ISSUE_COMMAND 0x80000000
#define PXE_HWCMD_INTS_AND_FILTS 0x00000000
//
// Use these to enable/disable receive filters.
//
#define PXE_HWCMD_PROMISCUOUS_MULTICAST_RX_ENABLE 0x00001000
#define PXE_HWCMD_PROMISCUOUS_RX_ENABLE 0x00000800
#define PXE_HWCMD_BROADCAST_RX_ENABLE 0x00000400
#define PXE_HWCMD_MULTICAST_RX_ENABLE 0x00000200
#define PXE_HWCMD_UNICAST_RX_ENABLE 0x00000100
//
// Use these to enable/disable external interrupts
//
#define PXE_HWCMD_SOFTWARE_INT_ENABLE 0x00000080
#define PXE_HWCMD_TX_COMPLETE_INT_ENABLE 0x00000040
#define PXE_HWCMD_PACKET_RX_INT_ENABLE 0x00000020
#define PXE_HWCMD_CMD_COMPLETE_INT_ENABLE 0x00000010
//
// Use these to clear pending external interrupts
//
#define PXE_HWCMD_CLEAR_SOFTWARE_INT 0x00000008
#define PXE_HWCMD_CLEAR_TX_COMPLETE_INT 0x00000004
#define PXE_HWCMD_CLEAR_PACKET_RX_INT 0x00000002
#define PXE_HWCMD_CLEAR_CMD_COMPLETE_INT 0x00000001
typedef struct s_pxe_sw_undi {
PXE_UINT32 Signature; // PXE_ROMID_SIGNATURE
PXE_UINT8 Len; // sizeof(PXE_SW_UNDI)
PXE_UINT8 Fudge; // makes 8-bit cksum zero
PXE_UINT8 Rev; // PXE_ROMID_REV
PXE_UINT8 IFcnt; // physical connector count
PXE_UINT8 MajorVer; // PXE_ROMID_MAJORVER
PXE_UINT8 MinorVer; // PXE_ROMID_MINORVER
PXE_UINT16 reserved1; // zero, not used
PXE_UINT32 Implementation; // Implementation flags
PXE_UINT64 EntryPoint; // API entry point
PXE_UINT8 reserved2[3]; // zero, not used
PXE_UINT8 BusCnt; // number of bustypes supported
PXE_UINT32 BusType[1]; // list of supported bustypes
} PXE_SW_UNDI;
typedef union u_pxe_undi {
PXE_HW_UNDI hw;
PXE_SW_UNDI sw;
} PXE_UNDI;
//
// Signature of !PXE structure
//
#define PXE_ROMID_SIGNATURE PXE_BUSTYPE('!', 'P', 'X', 'E')
//
// !PXE structure format revision
//
#define PXE_ROMID_REV 0x02
//
// UNDI command interface revision. These are the values that get sent
// in option 94 (Client Network Interface Identifier) in the DHCP Discover
// and PXE Boot Server Request packets.
//
#define PXE_ROMID_MAJORVER 0x03
#define PXE_ROMID_MINORVER 0x00
//
// Implementation flags
//
#define PXE_ROMID_IMP_HW_UNDI 0x80000000
#define PXE_ROMID_IMP_SW_VIRT_ADDR 0x40000000
#define PXE_ROMID_IMP_64BIT_DEVICE 0x00010000
#define PXE_ROMID_IMP_FRAG_SUPPORTED 0x00008000
#define PXE_ROMID_IMP_CMD_LINK_SUPPORTED 0x00004000
#define PXE_ROMID_IMP_CMD_QUEUE_SUPPORTED 0x00002000
#define PXE_ROMID_IMP_MULTI_FRAME_SUPPORTED 0x00001000
#define PXE_ROMID_IMP_NVDATA_SUPPORT_MASK 0x00000C00
#define PXE_ROMID_IMP_NVDATA_BULK_WRITABLE 0x00000C00
#define PXE_ROMID_IMP_NVDATA_SPARSE_WRITABLE 0x00000800
#define PXE_ROMID_IMP_NVDATA_READ_ONLY 0x00000400
#define PXE_ROMID_IMP_NVDATA_NOT_AVAILABLE 0x00000000
#define PXE_ROMID_IMP_STATISTICS_SUPPORTED 0x00000200
#define PXE_ROMID_IMP_STATION_ADDR_SETTABLE 0x00000100
#define PXE_ROMID_IMP_PROMISCUOUS_MULTICAST_RX_SUPPORTED 0x00000080
#define PXE_ROMID_IMP_PROMISCUOUS_RX_SUPPORTED 0x00000040
#define PXE_ROMID_IMP_BROADCAST_RX_SUPPORTED 0x00000020
#define PXE_ROMID_IMP_FILTERED_MULTICAST_RX_SUPPORTED 0x00000010
#define PXE_ROMID_IMP_SOFTWARE_INT_SUPPORTED 0x00000008
#define PXE_ROMID_IMP_TX_COMPLETE_INT_SUPPORTED 0x00000004
#define PXE_ROMID_IMP_PACKET_RX_INT_SUPPORTED 0x00000002
#define PXE_ROMID_IMP_CMD_COMPLETE_INT_SUPPORTED 0x00000001
typedef struct s_pxe_cdb {
PXE_OPCODE OpCode;
PXE_OPFLAGS OpFlags;
PXE_UINT16 CPBsize;
PXE_UINT16 DBsize;
UINT64 CPBaddr;
UINT64 DBaddr;
PXE_STATCODE StatCode;
PXE_STATFLAGS StatFlags;
PXE_UINT16 IFnum;
PXE_CONTROL Control;
} PXE_CDB;
typedef union u_pxe_ip_addr {
PXE_IPV6 IPv6;
PXE_IPV4 IPv4;
} PXE_IP_ADDR;
typedef union pxe_device {
//
// PCI and PC Card NICs are both identified using bus, device
// and function numbers. For PC Card, this may require PC
// Card services to be loaded in the BIOS or preboot
// environment.
//
struct {
//
// See S/W UNDI ROMID structure definition for PCI and
// PCC BusType definitions.
//
PXE_UINT32 BusType;
//
// Bus, device & function numbers that locate this device.
//
PXE_UINT16 Bus;
PXE_UINT8 Device;
PXE_UINT8 Function;
} PCI, PCC;
//
// %%TBD - More information is needed about enumerating
// USB and 1394 devices.
//
struct {
PXE_UINT32 BusType;
PXE_UINT32 tdb;
} USB, _1394;
} PXE_DEVICE;
// cpb and db definitions
#define MAX_PCI_CONFIG_LEN 64 // # of dwords
#define MAX_EEPROM_LEN 128 // #of dwords
#define MAX_XMIT_BUFFERS 32 // recycling Q length for xmit_done
#define MAX_MCAST_ADDRESS_CNT 8
typedef struct s_pxe_cpb_start {
//
// PXE_VOID Delay(PXE_UINT64 microseconds);
//
// UNDI will never request a delay smaller than 10 microseconds
// and will always request delays in increments of 10 microseconds.
// The Delay() CallBack routine must delay between n and n + 10
// microseconds before returning control to the UNDI.
//
// This field cannot be set to zero.
//
PXE_UINT64 Delay;
//
// PXE_VOID Block(PXE_UINT32 enable);
//
// UNDI may need to block multi-threaded/multi-processor access to
// critical code sections when programming or accessing the network
// device. To this end, a blocking service is needed by the UNDI.
// When UNDI needs a block, it will call Block() passing a non-zero
// value. When UNDI no longer needs a block, it will call Block()
// with a zero value. When called, if the Block() is already enabled,
// do not return control to the UNDI until the previous Block() is
// disabled.
//
// This field cannot be set to zero.
//
PXE_UINT64 Block;
//
// PXE_VOID Virt2Phys(PXE_UINT64 virtual, PXE_UINT64 physical_ptr);
//
// UNDI will pass the virtual address of a buffer and the virtual
// address of a 64-bit physical buffer. Convert the virtual address
// to a physical address and write the result to the physical address
// buffer. If virtual and physical addresses are the same, just
// copy the virtual address to the physical address buffer.
//
// This field can be set to zero if virtual and physical addresses
// are equal.
//
PXE_UINT64 Virt2Phys;
//
// PXE_VOID Mem_IO(PXE_UINT8 read_write, PXE_UINT8 len, PXE_UINT64 port,
// PXE_UINT64 buf_addr);
//
// UNDI will read or write the device io space using this call back
// function. It passes the number of bytes as the len parameter and it
// will be either 1,2,4 or 8.
//
// This field can not be set to zero.
//
PXE_UINT64 Mem_IO;
} PXE_CPB_START;
#define PXE_DELAY_MILLISECOND 1000
#define PXE_DELAY_SECOND 1000000
#define PXE_IO_READ 0
#define PXE_IO_WRITE 1
#define PXE_MEM_READ 2
#define PXE_MEM_WRITE 4
typedef struct s_pxe_db_get_init_info {
//
// Minimum length of locked memory buffer that must be given to
// the Initialize command. Giving UNDI more memory will generally
// give better performance.
//
// If MemoryRequired is zero, the UNDI does not need and will not
// use system memory to receive and transmit packets.
//
PXE_UINT32 MemoryRequired;
//
// Maximum frame data length for Tx/Rx excluding the media header.
//
PXE_UINT32 FrameDataLen;
//
// Supported link speeds are in units of mega bits. Common ethernet
// values are 10, 100 and 1000. Unused LinkSpeeds[] entries are zero
// filled.
//
PXE_UINT32 LinkSpeeds[4];
//
// Number of non-volatile storage items.
//
PXE_UINT32 NvCount;
//
// Width of non-volatile storage item in bytes. 0, 1, 2 or 4
//
PXE_UINT16 NvWidth;
//
// Media header length. This is the typical media header length for
// this UNDI. This information is needed when allocating receive
// and transmit buffers.
//
PXE_UINT16 MediaHeaderLen;
//
// Number of bytes in the NIC hardware (MAC) address.
//
PXE_UINT16 HWaddrLen;
//
// Maximum number of multicast MAC addresses in the multicast
// MAC address filter list.
//
PXE_UINT16 MCastFilterCnt;
//
// Default number and size of transmit and receive buffers that will
// be allocated by the UNDI. If MemoryRequired is non-zero, this
// allocation will come out of the memory buffer given to the Initialize
// command. If MemoryRequired is zero, this allocation will come out of
// memory on the NIC.
//
PXE_UINT16 TxBufCnt;
PXE_UINT16 TxBufSize;
PXE_UINT16 RxBufCnt;
PXE_UINT16 RxBufSize;
//
// Hardware interface types defined in the Assigned Numbers RFC
// and used in DHCP and ARP packets.
// See the PXE_IFTYPE typedef and PXE_IFTYPE_xxx macros.
//
PXE_UINT8 IFtype;
//
// Supported duplex. See PXE_DUPLEX_xxxxx #defines below.
//
PXE_UINT8 Duplex;
//
// Supported loopback options. See PXE_LOOPBACK_xxxxx #defines below.
//
PXE_UINT8 LoopBack;
} PXE_DB_GET_INIT_INFO;
#define PXE_MAX_TXRX_UNIT_ETHER 1500
#define PXE_HWADDR_LEN_ETHER 0x0006
#define PXE_MAC_HEADER_LEN_ETHER 0x000E
#define PXE_DUPLEX_ENABLE_FULL_SUPPORTED 1
#define PXE_DUPLEX_FORCE_FULL_SUPPORTED 2
#define PXE_LOOPBACK_INTERNAL_SUPPORTED 1
#define PXE_LOOPBACK_EXTERNAL_SUPPORTED 2
typedef struct s_pxe_pci_config_info {
//
// This is the flag field for the PXE_DB_GET_CONFIG_INFO union.
// For PCI bus devices, this field is set to PXE_BUSTYPE_PCI.
//
PXE_UINT32 BusType;
//
// This identifies the PCI network device that this UNDI interface
// is bound to.
//
PXE_UINT16 Bus;
PXE_UINT8 Device;
PXE_UINT8 Function;
//
// This is a copy of the PCI configuration space for this
// network device.
//
union {
PXE_UINT8 Byte[256];
PXE_UINT16 Word[128];
PXE_UINT32 Dword[64];
} Config;
} PXE_PCI_CONFIG_INFO;
typedef struct s_pxe_pcc_config_info {
//
// This is the flag field for the PXE_DB_GET_CONFIG_INFO union.
// For PCC bus devices, this field is set to PXE_BUSTYPE_PCC.
//
PXE_UINT32 BusType;
//
// This identifies the PCC network device that this UNDI interface
// is bound to.
//
PXE_UINT16 Bus;
PXE_UINT8 Device;
PXE_UINT8 Function;
//
// This is a copy of the PCC configuration space for this
// network device.
//
union {
PXE_UINT8 Byte[256];
PXE_UINT16 Word[128];
PXE_UINT32 Dword[64];
} Config;
} PXE_PCC_CONFIG_INFO;
typedef struct s_pxe_usb_config_info {
PXE_UINT32 BusType;
// %%TBD What should we return here...
} PXE_USB_CONFIG_INFO;
typedef struct s_pxe_1394_config_info {
PXE_UINT32 BusType;
// %%TBD What should we return here...
} PXE_1394_CONFIG_INFO;
typedef union u_pxe_db_get_config_info {
PXE_PCI_CONFIG_INFO pci;
PXE_PCC_CONFIG_INFO pcc;
PXE_USB_CONFIG_INFO usb;
PXE_1394_CONFIG_INFO _1394;
} PXE_DB_GET_CONFIG_INFO;
typedef struct s_pxe_cpb_initialize {
//
// Address of first (lowest) byte of the memory buffer. This buffer must
// be in contiguous physical memory and cannot be swapped out. The UNDI
// will be using this for transmit and receive buffering.
//
PXE_UINT64 MemoryAddr;
//
// MemoryLength must be greater than or equal to MemoryRequired
// returned by the Get Init Info command.
//
PXE_UINT32 MemoryLength;
//
// Desired link speed in Mbit/sec. Common ethernet values are 10, 100
// and 1000. Setting a value of zero will auto-detect and/or use the
// default link speed (operation depends on UNDI/NIC functionality).
//
PXE_UINT32 LinkSpeed;
//
// Suggested number and size of receive and transmit buffers to
// allocate. If MemoryAddr and MemoryLength are non-zero, this
// allocation comes out of the supplied memory buffer. If MemoryAddr
// and MemoryLength are zero, this allocation comes out of memory
// on the NIC.
//
// If these fields are set to zero, the UNDI will allocate buffer
// counts and sizes as it sees fit.
//
PXE_UINT16 TxBufCnt;
PXE_UINT16 TxBufSize;
PXE_UINT16 RxBufCnt;
PXE_UINT16 RxBufSize;
//
// The following configuration parameters are optional and must be zero
// to use the default values.
//
PXE_UINT8 Duplex;
PXE_UINT8 LoopBack;
} PXE_CPB_INITIALIZE;
#define PXE_DUPLEX_DEFAULT 0x00
#define PXE_FORCE_FULL_DUPLEX 0x01
#define PXE_ENABLE_FULL_DUPLEX 0x02
#define LOOPBACK_NORMAL 0
#define LOOPBACK_INTERNAL 1
#define LOOPBACK_EXTERNAL 2
typedef struct s_pxe_db_initialize {
//
// Actual amount of memory used from the supplied memory buffer. This
// may be less that the amount of memory suppllied and may be zero if
// the UNDI and network device do not use external memory buffers.
//
// Memory used by the UNDI and network device is allocated from the
// lowest memory buffer address.
//
PXE_UINT32 MemoryUsed;
//
// Actual number and size of receive and transmit buffers that were
// allocated.
//
PXE_UINT16 TxBufCnt;
PXE_UINT16 TxBufSize;
PXE_UINT16 RxBufCnt;
PXE_UINT16 RxBufSize;
} PXE_DB_INITIALIZE;
typedef struct s_pxe_cpb_receive_filters {
//
// List of multicast MAC addresses. This list, if present, will
// replace the existing multicast MAC address filter list.
//
PXE_MAC_ADDR MCastList[MAX_MCAST_ADDRESS_CNT];
} PXE_CPB_RECEIVE_FILTERS;
typedef struct s_pxe_db_receive_filters {
//
// Filtered multicast MAC address list.
//
PXE_MAC_ADDR MCastList[MAX_MCAST_ADDRESS_CNT];
} PXE_DB_RECEIVE_FILTERS;
typedef struct s_pxe_cpb_station_address {
//
// If supplied and supported, the current station MAC address
// will be changed.
//
PXE_MAC_ADDR StationAddr;
} PXE_CPB_STATION_ADDRESS;
typedef struct s_pxe_dpb_station_address {
//
// Current station MAC address.
//
PXE_MAC_ADDR StationAddr;
//
// Station broadcast MAC address.
//
PXE_MAC_ADDR BroadcastAddr;
//
// Permanent station MAC address.
//
PXE_MAC_ADDR PermanentAddr;
} PXE_DB_STATION_ADDRESS;
typedef struct s_pxe_db_statistics {
//
// Bit field identifying what statistic data is collected by the
// UNDI/NIC.
// If bit 0x00 is set, Data[0x00] is collected.
// If bit 0x01 is set, Data[0x01] is collected.
// If bit 0x20 is set, Data[0x20] is collected.
// If bit 0x21 is set, Data[0x21] is collected.
// Etc.
//
PXE_UINT64 Supported;
//
// Statistic data.
//
PXE_UINT64 Data[64];
} PXE_DB_STATISTICS;
//
// Total number of frames received. Includes frames with errors and
// dropped frames.
//
#define PXE_STATISTICS_RX_TOTAL_FRAMES 0x00
//
// Number of valid frames received and copied into receive buffers.
//
#define PXE_STATISTICS_RX_GOOD_FRAMES 0x01
//
// Number of frames below the minimum length for the media.
// This would be <64 for ethernet.
//
#define PXE_STATISTICS_RX_UNDERSIZE_FRAMES 0x02
//
// Number of frames longer than the maxminum length for the
// media. This would be >1500 for ethernet.
//
#define PXE_STATISTICS_RX_OVERSIZE_FRAMES 0x03
//
// Valid frames that were dropped because receive buffers were full.
//
#define PXE_STATISTICS_RX_DROPPED_FRAMES 0x04
//
// Number of valid unicast frames received and not dropped.
//
#define PXE_STATISTICS_RX_UNICAST_FRAMES 0x05
//
// Number of valid broadcast frames received and not dropped.
//
#define PXE_STATISTICS_RX_BROADCAST_FRAMES 0x06
//
// Number of valid mutlicast frames received and not dropped.
//
#define PXE_STATISTICS_RX_MULTICAST_FRAMES 0x07
//
// Number of frames w/ CRC or alignment errors.
//
#define PXE_STATISTICS_RX_CRC_ERROR_FRAMES 0x08
//
// Total number of bytes received. Includes frames with errors
// and dropped frames.
//
#define PXE_STATISTICS_RX_TOTAL_BYTES 0x09
//
// Transmit statistics.
//
#define PXE_STATISTICS_TX_TOTAL_FRAMES 0x0A
#define PXE_STATISTICS_TX_GOOD_FRAMES 0x0B
#define PXE_STATISTICS_TX_UNDERSIZE_FRAMES 0x0C
#define PXE_STATISTICS_TX_OVERSIZE_FRAMES 0x0D
#define PXE_STATISTICS_TX_DROPPED_FRAMES 0x0E
#define PXE_STATISTICS_TX_UNICAST_FRAMES 0x0F
#define PXE_STATISTICS_TX_BROADCAST_FRAMES 0x10
#define PXE_STATISTICS_TX_MULTICAST_FRAMES 0x11
#define PXE_STATISTICS_TX_CRC_ERROR_FRAMES 0x12
#define PXE_STATISTICS_TX_TOTAL_BYTES 0x13
//
// Number of collisions detection on this subnet.
//
#define PXE_STATISTICS_COLLISIONS 0x14
//
// Number of frames destined for unsupported protocol.
//
#define PXE_STATISTICS_UNSUPPORTED_PROTOCOL 0x15
typedef struct s_pxe_cpb_mcast_ip_to_mac {
//
// Multicast IP address to be converted to multicast MAC address.
//
PXE_IP_ADDR IP;
} PXE_CPB_MCAST_IP_TO_MAC;
typedef struct s_pxe_db_mcast_ip_to_mac {
//
// Multicast MAC address.
//
PXE_MAC_ADDR MAC;
} PXE_DB_MCAST_IP_TO_MAC;
typedef struct s_pxe_cpb_nvdata_sparse {
//
// NvData item list. Only items in this list will be updated.
//
struct {
// Non-volatile storage address to be changed.
PXE_UINT32 Addr;
// Data item to write into above storage address.
union {
PXE_UINT8 Byte;
PXE_UINT16 Word;
PXE_UINT32 Dword;
} Data;
} Item[MAX_EEPROM_LEN];
} PXE_CPB_NVDATA_SPARSE;
//
// When using bulk update, the size of the CPB structure must be
// the same size as the non-volatile NIC storage.
//
typedef union u_pxe_cpb_nvdata_bulk {
//
// Array of byte-wide data items.
//
PXE_UINT8 Byte[MAX_EEPROM_LEN << 2];
//
// Array of word-wide data items.
//
PXE_UINT16 Word[MAX_EEPROM_LEN << 1];
//
// Array of dword-wide data items.
//
PXE_UINT32 Dword[MAX_EEPROM_LEN];
} PXE_CPB_NVDATA_BULK;
typedef struct s_pxe_db_nvdata {
// Arrays of data items from non-volatile storage.
union {
//
// Array of byte-wide data items.
//
PXE_UINT8 Byte[MAX_EEPROM_LEN << 2];
//
// Array of word-wide data items.
//
PXE_UINT16 Word[MAX_EEPROM_LEN << 1];
// Array of dword-wide data items.
PXE_UINT32 Dword[MAX_EEPROM_LEN];
} Data;
} PXE_DB_NVDATA;
typedef struct s_pxe_db_get_status {
//
// Length of next receive frame (header + data). If this is zero,
// there is no next receive frame available.
//
PXE_UINT32 RxFrameLen;
//
// Reserved, set to zero.
//
PXE_UINT32 reserved;
//
// Addresses of transmitted buffers that need to be recycled.
//
PXE_UINT64 TxBuffer[MAX_XMIT_BUFFERS];
} PXE_DB_GET_STATUS;
typedef struct s_pxe_cpb_fill_header {
//
// Source and destination MAC addresses. These will be copied into
// the media header without doing byte swapping.
//
PXE_MAC_ADDR SrcAddr;
PXE_MAC_ADDR DestAddr;
//
// Address of first byte of media header. The first byte of packet data
// follows the last byte of the media header.
//
PXE_UINT64 MediaHeader;
//
// Length of packet data in bytes (not including the media header).
//
PXE_UINT32 PacketLen;
//
// Protocol type. This will be copied into the media header without
// doing byte swapping. Protocol type numbers can be obtained from
// the Assigned Numbers RFC 1700.
//
PXE_UINT16 Protocol;
//
// Length of the media header in bytes.
//
PXE_UINT16 MediaHeaderLen;
} PXE_CPB_FILL_HEADER;
#define PXE_PROTOCOL_ETHERNET_IP 0x0800
#define PXE_PROTOCOL_ETHERNET_ARP 0x0806
#define MAX_XMIT_FRAGMENTS 16
typedef struct s_pxe_cpb_fill_header_fragmented {
//
// Source and destination MAC addresses. These will be copied into
// the media header without doing byte swapping.
//
PXE_MAC_ADDR SrcAddr;
PXE_MAC_ADDR DestAddr;
//
// Length of packet data in bytes (not including the media header).
//
PXE_UINT32 PacketLen;
//
// Protocol type. This will be copied into the media header without
// doing byte swapping. Protocol type numbers can be obtained from
// the Assigned Numbers RFC 1700.
//
PXE_MEDIA_PROTOCOL Protocol;
//
// Length of the media header in bytes.
//
PXE_UINT16 MediaHeaderLen;
//
// Number of packet fragment descriptors.
//
PXE_UINT16 FragCnt;
//
// Reserved, must be set to zero.
//
PXE_UINT16 reserved;
//
// Array of packet fragment descriptors. The first byte of the media
// header is the first byte of the first fragment.
//
struct {
//
// Address of this packet fragment.
//
PXE_UINT64 FragAddr;
//
// Length of this packet fragment.
//
PXE_UINT32 FragLen;
//
// Reserved, must be set to zero.
//
PXE_UINT32 reserved;
} FragDesc[MAX_XMIT_FRAGMENTS];
} PXE_CPB_FILL_HEADER_FRAGMENTED;
typedef struct s_pxe_cpb_transmit {
//
// Address of first byte of frame buffer. This is also the first byte
// of the media header.
//
PXE_UINT64 FrameAddr;
//
// Length of the data portion of the frame buffer in bytes. Do not
// include the length of the media header.
//
PXE_UINT32 DataLen;
//
// Length of the media header in bytes.
//
PXE_UINT16 MediaheaderLen;
//
// Reserved, must be zero.
//
PXE_UINT16 reserved;
} PXE_CPB_TRANSMIT;
typedef struct s_pxe_cpb_transmit_fragments {
//
// Length of packet data in bytes (not including the media header).
//
PXE_UINT32 FrameLen;
//
// Length of the media header in bytes.
//
PXE_UINT16 MediaheaderLen;
//
// Number of packet fragment descriptors.
//
PXE_UINT16 FragCnt;
//
// Array of frame fragment descriptors. The first byte of the first
// fragment is also the first byte of the media header.
//
struct {
//
// Address of this frame fragment.
//
PXE_UINT64 FragAddr;
//
// Length of this frame fragment.
//
PXE_UINT32 FragLen;
//
// Reserved, must be set to zero.
//
PXE_UINT32 reserved;
} FragDesc[MAX_XMIT_FRAGMENTS];
} PXE_CPB_TRANSMIT_FRAGMENTS;
typedef struct s_pxe_cpb_receive {
//
// Address of first byte of receive buffer. This is also the first byte
// of the frame header.
//
PXE_UINT64 BufferAddr;
//
// Length of receive buffer. This must be large enough to hold the
// received frame (media header + data). If the length of smaller than
// the received frame, data will be lost.
//
PXE_UINT32 BufferLen;
//
// Reserved, must be set to zero.
//
PXE_UINT32 reserved;
} PXE_CPB_RECEIVE;
typedef struct s_pxe_db_receive {
//
// Source and destination MAC addresses from media header.
//
PXE_MAC_ADDR SrcAddr;
PXE_MAC_ADDR DestAddr;
//
// Length of received frame. May be larger than receive buffer size.
// The receive buffer will not be overwritten. This is how to tell
// if data was lost because the receive buffer was too small.
//
PXE_UINT32 FrameLen;
//
// Protocol type from media header.
//
PXE_MEDIA_PROTOCOL Protocol;
//
// Length of media header in received frame.
//
PXE_UINT16 MediaHeaderLen;
//
// Type of receive frame.
//
PXE_FRAME_TYPE Type;
//
// Reserved, must be zero.
//
PXE_UINT8 reserved[7];
} PXE_DB_RECEIVE;
#pragma pack()
/* EOF - efi_pxe.h */
#endif /* _EFI_PXE_H */
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