#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 */