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audk/MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.h

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/*++
Copyright (c) 2004 - 2008, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
IScsiProto.h
Abstract:
Protocol definitions for iSCSI driver, mainly from RFC3720.
--*/
#ifndef _ISCSI_PROTO_H_
#define _ISCSI_PROTO_H_
#include <Protocol/ScsiPassThruExt.h>
//
// RFC 1982 Serial Number Arithmetic, SERIAL_BITS = 32
//
#define ISCSI_SEQ_EQ(s1, s2) ((s1) == (s2))
#define ISCSI_SEQ_LT(s1, s2) \
( \
(((INT32) (s1) < (INT32) (s2)) && (s2 - s1) < (1 << 31)) || \
(((INT32) (s1) > (INT32) (s2)) && (s1 - s2) > (1 << 31)) \
)
#define ISCSI_SEQ_GT(s1, s2) \
( \
(((INT32) (s1) < (INT32) (s2)) && (s2 - s1) > (1 << 31)) || \
(((INT32) (s1) > (INT32) (s2)) && (s1 - s2) < (1 << 31)) \
)
#define ISCSI_WELL_KNOWN_PORT 3260
#define ISCSI_MAX_CONNS_PER_SESSION 1
#define DEFAULT_MAX_RECV_DATA_SEG_LEN 8192
#define MAX_RECV_DATA_SEG_LEN_IN_FFP 65536
#define DEFAULT_MAX_OUTSTANDING_R2T 1
#define ISCSI_VERSION_MAX 0x00
#define ISCSI_VERSION_MIN 0x00
#define ISID_BYTE_0 0 // OUI format
#define ISID_BYTE_1 0
#define ISID_BYTE_2 0xaa
#define ISID_BYTE_3 0x1
#define ISCSI_KEY_AUTH_METHOD "AuthMethod"
#define ISCSI_KEY_HEADER_DIGEST "HeaderDigest"
#define ISCSI_KEY_DATA_DIGEST "DataDigest"
#define ISCSI_KEY_MAX_CONNECTIONS "MaxConnections"
#define ISCSI_KEY_TARGET_NAME "TargetName"
#define ISCSI_KEY_INITIATOR_NAME "InitiatorName"
#define ISCSI_KEY_TARGET_ALIAS "TargetAlias"
#define ISCSI_KEY_INITIATOR_ALIAS "InitiatorAlias"
#define ISCSI_KEY_TARGET_ADDRESS "TargetAddress"
#define ISCSI_KEY_INITIAL_R2T "InitialR2T"
#define ISCSI_KEY_IMMEDIATE_DATA "ImmediateData"
#define ISCSI_KEY_TARGET_PORTAL_GROUP_TAG "TargetPortalGroupTag"
#define ISCSI_KEY_MAX_BURST_LENGTH "MaxBurstLength"
#define ISCSI_KEY_FIRST_BURST_LENGTH "FirstBurstLength"
#define ISCSI_KEY_DEFAULT_TIME2WAIT "DefaultTime2Wait"
#define ISCSI_KEY_DEFAULT_TIME2RETAIN "DefaultTime2Retain"
#define ISCSI_KEY_MAX_OUTSTANDING_R2T "MaxOutstandingR2T"
#define ISCSI_KEY_DATA_PDU_IN_ORDER "DataPDUInOrder"
#define ISCSI_KEY_DATA_SEQUENCE_IN_ORDER "DataSequenceInOrder"
#define ISCSI_KEY_ERROR_RECOVERY_LEVEL "ErrorRecoveryLevel"
#define ISCSI_KEY_SESSION_TYPE "SessionType"
#define ISCSI_KEY_MAX_RECV_DATA_SEGMENT_LENGTH "MaxRecvDataSegmentLength"
#define ISCSI_KEY_VALUE_NONE "None"
//
// connection state for initiator
//
typedef enum {
CONN_STATE_FREE,
CONN_STATE_XPT_WAIT,
CONN_STATE_IN_LOGIN,
CONN_STATE_LOGGED_IN,
CONN_STATE_IN_LOGOUT,
CONN_STATE_LOGOUT_REQUESTED,
CONN_STATE_CLEANUP_WAIT,
CONN_STATE_IN_CLEANUP
} CONNECTION_STATE;
//
// session state for initiator
//
typedef enum {
SESSION_STATE_FREE,
SESSION_STATE_LOGGED_IN,
SESSION_STATE_FAILED
} SESSION_STATE;
typedef enum {
DataIn = 0,
DataOut = 1,
DataBi = 2
} DATA_DIRECTION;
#define ISCSI_RESERVED_TAG 0xffffffff
#define ISCSI_REQ_IMMEDIATE 0x40
#define ISCSI_OPCODE_MASK 0x3F
#define ISCSI_SET_OPCODE(PduHdr, Op, Flgs) ((((ISCSI_BASIC_HEADER *) (PduHdr))->OpCode) = ((Op) | (Flgs)))
#define ISCSI_GET_OPCODE(PduHdr) ((((ISCSI_BASIC_HEADER *) (PduHdr))->OpCode) & ISCSI_OPCODE_MASK)
#define ISCSI_CHECK_OPCODE(PduHdr, Op) ((((PduHdr)->OpCode) & ISCSI_OPCODE_MASK) == (Op))
#define ISCSI_IMMEDIATE_ON(PduHdr) ((PduHdr)->OpCode & ISCSI_REQ_IMMEDIATE)
#define ISCSI_SET_FLAG(PduHdr, Flag) (((ISCSI_BASIC_HEADER *) (PduHdr))->Flags |= (BOOLEAN)(Flag))
#define ISCSI_CLEAR_FLAG(PduHdr, Flag) (((ISCSI_BASIC_HEADER *) (PduHdr))->Flags &= ~(Flag))
#define ISCSI_FLAG_ON(PduHdr, Flag) ((((ISCSI_BASIC_HEADER *) (PduHdr))->Flags & (Flag)) == (Flag))
#define ISCSI_SET_STAGES(PduHdr, Cur, Nxt) ((PduHdr)->Flags = (UINT8) ((PduHdr)->Flags | ((Cur) << 2 | (Nxt))))
#define ISCSI_GET_CURRENT_STAGE(PduHdr) (((PduHdr)->Flags >> 2) & 0x3)
#define ISCSI_GET_NEXT_STAGE(PduHdr) (((PduHdr)->Flags) & 0x3)
#define ISCSI_GET_PAD_LEN(DataLen) ((~(DataLen) + 1) & 0x3)
#define ISCSI_ROUNDUP(DataLen) (((DataLen) + 3) &~(0x3))
#define HTON24(Dst, Src) \
do { \
(Dst)[0] = (UINT8) (((Src) >> 16) & 0xFF); \
(Dst)[1] = (UINT8) (((Src) >> 8) & 0xFF); \
(Dst)[2] = (UINT8) ((Src) & 0xFF); \
} while (0);
#define NTOH24(src) (((src)[0] << 16) | ((src)[1] << 8) | ((src)[2]))
#define ISCSI_GET_DATASEG_LEN(PduHdr) NTOH24 (((ISCSI_BASIC_HEADER *) (PduHdr))->DataSegmentLength)
#define ISCSI_SET_DATASEG_LEN(PduHdr, Len) HTON24 (((ISCSI_BASIC_HEADER *) (PduHdr))->DataSegmentLength, (Len))
//
// initiator opcodes
//
#define ISCSI_OPCODE_NOP_OUT 0x00
#define ISCSI_OPCODE_SCSI_CMD 0x01
#define ISCSI_OPCODE_SCSI_TMF_REQ 0x02
#define ISCSI_OPCODE_LOGIN_REQ 0x03
#define ISCSI_OPCODE_TEXT_REQ 0x04
#define ISCSI_OPCODE_SCSI_DATA_OUT 0x05
#define ISCSI_OPCODE_LOGOUT_REQ 0x06
#define ISCSI_OPCODE_SNACK_REQ 0x10
#define ISCSI_OPCODE_VENDOR_I0 0x1c
#define ISCSI_OPCODE_VENDOR_I1 0x1d
#define ISCSI_OPCODE_VENDOR_I2 0x1e
//
// target opcodes
//
#define ISCSI_OPCODE_NOP_IN 0x20
#define ISCSI_OPCODE_SCSI_RSP 0x21
#define ISCSI_OPCODE_SCSI_TMF_RSP 0x22
#define ISCSI_OPCODE_LOGIN_RSP 0x23
#define ISCSI_OPCODE_TEXT_RSP 0x24
#define ISCSI_OPCODE_SCSI_DATA_IN 0x25
#define ISCSI_OPCODE_LOGOUT_RSP 0x26
#define ISCSI_OPCODE_R2T 0x31
#define ISCSI_OPCODE_ASYNC_MSG 0x32
#define ISCSI_OPCODE_VENDOR_T0 0x3c
#define ISCSI_OPCODE_VENDOR_T1 0x3d
#define ISCSI_OPCODE_VENDOR_T2 0x3e
#define ISCSI_OPCODE_REJECT 0x3f
#define ISCSI_BHS_FLAG_FINAL 0x80
//
// iSCSI Basic Header Segment
//
typedef struct _ISCSI_BASIC_HEADER {
UINT8 OpCode;
UINT8 Flags;
UINT16 OpCodeSpecific1;
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT8 Lun[8];
UINT32 InitiatorTaskTag;
UINT32 OpCodeSpecific2[7];
} ISCSI_BASIC_HEADER;
//
// Defined AHS types, others are reserved.
//
#define ISCSI_AHS_TYPE_EXT_CDB 0x1
#define ISCSI_AHS_TYPE_BI_EXP_READ_DATA_LEN 0x2
typedef struct _ISCSI_ADDTIONAL_HEADER {
UINT16 Length;
UINT8 Type;
UINT8 TypeSpecific[1];
} ISCSI_ADDITIONAL_HEADER;
typedef struct _ISCSI_BI_EXP_READ_DATA_LEN_AHS {
UINT16 Length;
UINT8 Type;
UINT8 Reserved;
UINT32 ExpReadDataLength;
} ISCSI_BI_EXP_READ_DATA_LEN_AHS;
#define SCSI_CMD_PDU_FLAG_READ 0x40
#define SCSI_CMD_PDU_FLAG_WRITE 0x20
#define ISCSI_CMD_PDU_TASK_ATTR_MASK 0x07
//
// task attributes
//
#define ISCSI_TASK_ATTR_UNTAGGED 0x00
#define ISCSI_TASK_ATTR_SIMPLE 0x01
#define ISCSI_TASK_ATTR_ORDERD 0x02
#define ISCSI_TASK_ATTR_HOQ 0x03
#define ISCSI_TASK_ATTR_ACA 0x04
//
// SCSI Command
//
typedef struct _SCSI_COMMAND {
UINT8 OpCode;
UINT8 Flags;
UINT16 Reserved;
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT8 Lun[8];
UINT32 InitiatorTaskTag;
UINT32 ExpDataXferLength;
UINT32 CmdSN;
UINT32 ExpStatSN;
UINT8 CDB[16];
} SCSI_COMMAND;
//
// flag bit definitions in SCSI response
//
#define SCSI_RSP_PDU_FLAG_BI_READ_OVERFLOW 0x10
#define SCSI_RSP_PDU_FLAG_BI_READ_UNDERFLOW 0x08
#define SCSI_RSP_PDU_FLAG_OVERFLOW 0x04
#define SCSI_RSP_PDU_FLAG_UNDERFLOW 0x02
//
// iSCSI service response codes
//
#define ISCSI_SERVICE_RSP_COMMAND_COMPLETE_AT_TARGET 0x00
#define ISCSI_SERVICE_RSP_TARGET_FAILURE 0x01
//
// SCSI Response
//
typedef struct _SCSI_RESPONSE {
UINT8 OpCode;
UINT8 Flags;
UINT8 Response;
UINT8 Status;
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT8 Reserved[8];
UINT32 InitiatorTaskTag;
UINT32 SNACKTag;
UINT32 StatSN;
UINT32 ExpCmdSN;
UINT32 MaxCmdSN;
UINT32 ExpDataSN;
UINT32 BiReadResidualCount;
UINT32 ResidualCount;
} SCSI_RESPONSE;
typedef struct _ISCSI_SENSE_DATA {
UINT16 Length;
UINT8 Data[2];
} ISCSI_SENSE_DATA;
//
// iSCSI Task Managment Function Request
//
typedef struct _ISCSI_TMF_REQUEST {
UINT8 OpCode;
UINT8 Fuction;
UINT16 Reserved1;
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT8 Lun[8];
UINT32 InitiatorTaskTag;
UINT32 ReferencedTaskTag;
UINT32 CmdSN;
UINT32 ExpStatSN;
UINT32 RefCmdSN;
UINT32 ExpDataSN;
UINT32 Reserved2[2];
} ISCSI_TMF_REQUEST;
#define ISCSI_TMF_RSP_PDU_RSP_FUNCTION_COMPLETE 0
#define ISCSI_TMF_RSP_PDU_RSP_TASK_NOT_EXIST 1
#define ISCSI_TMF_RSP_PDU_RSP_LUN_NOT_EXIST 2
#define ISCSI_TMF_RSP_PDU_RSP_TASK_STILL_ALLEGIANT 3
#define ISCSI_TMF_RSP_PDU_RSP_TASK_REASSGIN_NOT_SUPPORTED 4
#define ISCSI_TMF_RSP_PDU_RSP_NOT_SUPPORTED 5
#define ISCSI_TMF_RSP_PDU_RSP_FUNCTION_AHTH_FAILED 6
#define ISCSI_TMF_RSP_PDU_RSP_FUNCTION_REJECTED 255
//
// iSCSI Task Management Function Response
//
typedef struct _ISCSI_TMF_RESPONSE {
UINT8 OpCode;
UINT8 Reserved1;
UINT8 Response;
UINT8 Reserved2;
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT32 Reserver3[2];
UINT32 InitiatorTaskTag;
UINT32 Reserved4;
UINT32 StatSN;
UINT32 ExpCmdSN;
UINT32 MaxCmdSN;
UINT32 Reserved[3];
} ISCSI_TMF_RESPONSE;
//
// SCSI Data-Out
//
typedef struct _ISCSI_SCSI_DATA_OUT {
UINT8 OpCode;
UINT8 Reserved1[3];
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT8 Lun[8];
UINT32 InitiatorTaskTag;
UINT32 TargetTransferTag;
UINT32 Reserved2;
UINT32 ExpStatSN;
UINT32 Reserved3;
UINT32 DataSN;
UINT32 BufferOffset;
UINT32 Reserved4;
} ISCSI_SCSI_DATA_OUT;
#define SCSI_DATA_IN_PDU_FLAG_ACKKNOWLEDGE 0x40
#define SCSI_DATA_IN_PDU_FLAG_OVERFLOW SCSI_RSP_PDU_FLAG_OVERFLOW
#define SCSI_DATA_IN_PDU_FLAG_UNDERFLOW SCSI_RSP_PDU_FLAG_UNDERFLOW
#define SCSI_DATA_IN_PDU_FLAG_STATUS_VALID 0x01
//
// SCSI Data-In
//
typedef struct _ISCSI_SCSI_DATA_IN {
UINT8 OpCode;
UINT8 Flags;
UINT8 Reserved1;
UINT8 Status;
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT8 Lun[8];
UINT32 InitiatorTaskTag;
UINT32 TargetTransferTag;
UINT32 StatSN;
UINT32 ExpCmdSN;
UINT32 MaxCmdSN;
UINT32 DataSN;
UINT32 BufferOffset;
UINT32 ResidualCount;
} ISCSI_SCSI_DATA_IN;
#define ISCSI_GET_BUFFER_OFFSET(PduHdr) NTOHL (((ISCSI_SCSI_DATA_IN *) (PduHdr))->BufferOffset)
//
// Ready To Transfer
//
typedef struct _ISCSI_READY_TO_TRANSFER {
UINT8 OpCode;
UINT8 Reserved1[3];
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT8 Lun[8];
UINT32 InitiatorTaskTag;
UINT32 TargetTransferTag;
UINT32 StatSN;
UINT32 ExpCmdSN;
UINT32 MaxCmdSN;
UINT32 R2TSN;
UINT32 BufferOffset;
UINT32 DesiredDataTransferLength;
} ISCSI_READY_TO_TRANSFER;
typedef struct _ISCSI_ASYNC_MESSAGE {
UINT8 OpCode;
UINT8 Reserved1[8];
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT8 Lun[8];
UINT32 InitiatorTaskTag;
UINT32 Reserved2;
UINT32 StatSN;
UINT32 ExpCmdSN;
UINT32 MaxCmdSN;
UINT8 AsyncEvent;
UINT8 AsyncVCode;
UINT16 Parameter1;
UINT16 Parameter2;
UINT16 Parameter3;
UINT32 Reserved3;
} ISCSI_ASYNC_MESSAGE;
#define ISCSI_LOGIN_REQ_PDU_FLAG_TRANSIT 0x80
#define ISCSI_LOGIN_REQ_PDU_FLAG_CONTINUE 0x40
//
// Login Request
//
typedef struct _ISCSI_LOGIN_REQUEST {
UINT8 OpCode;
UINT8 Flags;
UINT8 VersionMax;
UINT8 VersionMin;
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT8 ISID[6];
UINT16 TSIH;
UINT32 InitiatorTaskTag;
UINT16 CID;
UINT16 Reserved1;
UINT32 CmdSN;
UINT32 ExpStatSN;
UINT32 Reserved2[4];
} ISCSI_LOGIN_REQUEST;
#define ISCSI_LOGIN_RSP_PDU_FLAG_TRANSIT ISCSI_LOGIN_REQ_PDU_FLAG_TRANSIT
#define ISCSI_LOGIN_RSP_PDU_FLAG_CONTINUE ISCSI_LOGIN_REQ_PDU_FLAG_CONTINUE
#define ISCSI_LOGIN_STATUS_SUCCESS 0
#define ISCSI_LOGIN_STATUS_REDIRECTION 1
#define ISCSI_LOGIN_STATUS_INITIATOR_ERROR 2
#define ISCSI_LOGIN_STATUS_TARGET_ERROR 3
//
// Login Response
//
typedef struct _ISCSI_LOGIN_RESPONSE {
UINT8 OpCode;
UINT8 Flags;
UINT8 VersionMax;
UINT8 VersionActive;
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT8 ISID[6];
UINT16 TSIH;
UINT32 InitiatorTaskTag;
UINT32 Reserved1;
UINT32 StatSN;
UINT32 ExpCmdSN;
UINT32 MaxCmdSN;
UINT8 StatusClass;
UINT8 StatusDetail;
UINT8 Reserved2[10];
} ISCSI_LOGIN_RESPONSE;
#define ISCSI_LOGOUT_REASON_CLOSE_SESSION 0
#define ISCSI_LOGOUT_REASON_CLOSE_CONNECTION 1
#define ISCSI_LOGOUT_REASON_REMOVE_CONNECTION_FOR_RECOVERY 2
//
// Logout Request
//
typedef struct _ISCSI_LOGOUT_REQUEST {
UINT8 OpCode;
UINT8 ReasonCode;
UINT16 Reserved1;
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT32 Reserved2[2];
UINT32 InitiatorTaskTag;
UINT16 CID;
UINT16 Reserved3;
UINT32 CmdSN;
UINT32 ExpStatSN;
UINT32 Reserved4[4];
} ISCSI_LOGOUT_REQUEST;
#define ISCSI_LOGOUT_RESPONSE_SESSION_CLOSED_SUCCESS 0
#define ISCSI_LOGOUT_RESPONSE_CID_NOT_FOUND 1
#define ISCSI_LOGOUT_RESPONSE_RECOVERY_NOT_SUPPORTED 2
#define ISCSI_LOGOUT_RESPONSE_CLEANUP_FAILED 3
//
// Logout Response
//
typedef struct _ISCSI_LOGOUT_RESPONSE {
UINT8 OpCode;
UINT8 Reserved1;
UINT8 Response;
UINT8 Reserved2;
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT32 Reserved3[2];
UINT32 InitiatorTaskTag;
UINT32 Reserved4;
UINT32 StatSN;
UINT32 ExpCmdSN;
UINT32 MaxCmdSN;
UINT32 Reserved5;
UINT16 Time2Wait;
UINT16 Time2Retain;
UINT32 Reserved6;
} ISCSI_LOGOUT_RESPONSE;
#define ISCSI_SNACK_REQUEST_TYPE_DATA_OR_R2T 0
#define ISCSI_SNACK_REQUEST_TYPE_STATUS 1
#define ISCSI_SNACK_REQUEST_TYPE_DATA_ACK 2
#define ISCSI_SNACK_REQUEST_TYPE_RDATA 3
//
// SNACK Request
//
typedef struct _ISCSI_SNACK_REQUEST {
UINT8 OpCode;
UINT8 Type;
UINT16 Reserved1;
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT8 Lun[8];
UINT32 InitiatorTaskTag;
UINT32 TargetTransferTag;
UINT32 Reserved2;
UINT32 ExpStatSN;
UINT32 Reserved[2];
UINT32 BegRun;
UINT32 RunLength;
} ISCSI_SNACK_REQUEST;
//
// Reject
//
typedef struct _ISCSI_REJECT {
UINT8 OpCode;
UINT8 Reserved1;
UINT8 Reason;
UINT8 Reserved2;
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT32 Reserved3[2];
UINT32 InitiatorTaskTag;
UINT32 Reserved4;
UINT32 StatSN;
UINT32 ExpCmdSN;
UINT32 MaxCmdSN;
UINT32 DataSN;
UINT32 Reserved5[2];
} ISCSI_REJECT;
//
// NOP-Out
//
typedef struct _ISCSI_NOP_OUT {
UINT8 OpCode;
UINT8 Reserved1[3];
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT8 Lun[8];
UINT32 InitiatorTaskTag;
UINT32 TargetTransferTag;
UINT32 CmdSN;
UINT32 ExpStatSN;
UINT32 Reserved2[4];
} ISCSI_NOP_OUT;
//
// NOP-In
//
typedef struct _ISCSI_NOP_IN {
UINT8 OpCode;
UINT8 Reserved1[3];
UINT8 TotalAHSLength;
UINT8 DataSegmentLength[3];
UINT8 Lun[8];
UINT32 InitiatorTaskTag;
UINT32 TargetTransferTag;
UINT32 StatSN;
UINT32 ExpCmdSN;
UINT32 MaxCmdSN;
UINT32 Reserved2[3];
} ISCSI_NOP_IN;
#define ISCSI_SECURITY_NEGOTIATION 0
#define ISCSI_LOGIN_OPERATIONAL_NEGOTIATION 1
#define ISCSI_FULL_FEATURE_PHASE 3
typedef enum {
ISCSI_DIGEST_NONE,
ISCSI_DIGEST_CRC32
} ISCSI_DIGEST_TYPE;
typedef struct _ISCSI_XFER_CONTEXT {
UINT32 TargetTransferTag;
UINT32 Offset;
UINT32 DesiredLength;
UINT32 ExpDataSN;
} ISCSI_XFER_CONTEXT;
typedef struct _ISCSI_IN_BUFFER_CONTEXT {
UINT8 *InData;
UINT32 InDataLen;
} ISCSI_IN_BUFFER_CONTEXT;
typedef struct _ISCSI_TCB {
LIST_ENTRY Link;
BOOLEAN SoFarInOrder;
UINT32 ExpDataSN;
BOOLEAN FbitReceived;
BOOLEAN StatusXferd;
UINT32 ActiveR2Ts;
UINT32 Response;
CHAR8 *Reason;
UINT32 InitiatorTaskTag;
UINT32 CmdSN;
UINT32 SNACKTag;
ISCSI_XFER_CONTEXT XferContext;
ISCSI_CONNECTION *Conn;
} ISCSI_TCB;
typedef struct _ISCSI_KEY_VALUE_PAIR {
LIST_ENTRY List;
CHAR8 *Key;
CHAR8 *Value;
} ISCSI_KEY_VALUE_PAIR;
//
// function prototypes.
//
VOID
IScsiAttatchConnection (
IN ISCSI_SESSION *Session,
IN ISCSI_CONNECTION *Conn
);
VOID
IScsiDetatchConnection (
IN ISCSI_CONNECTION *Conn
);
EFI_STATUS
IScsiConnLogin (
IN ISCSI_CONNECTION *Conn
);
ISCSI_CONNECTION *
IScsiCreateConnection (
IN ISCSI_DRIVER_DATA *Private,
IN ISCSI_SESSION *Session
);
VOID
IScsiDestroyConnection (
IN ISCSI_CONNECTION *Conn
);
EFI_STATUS
IScsiSessionLogin (
IN ISCSI_DRIVER_DATA *Private
);
EFI_STATUS
IScsiSendLoginReq (
IN ISCSI_CONNECTION *Conn
);
EFI_STATUS
IScsiReceiveLoginRsp (
IN ISCSI_CONNECTION *Conn
);
EFI_STATUS
IScsiAddKeyValuePair (
IN NET_BUF *Pdu,
IN CHAR8 *Key,
IN CHAR8 *Value
);
NET_BUF *
IScsiPrepareLoginReq (
IN ISCSI_CONNECTION *Conn
);
EFI_STATUS
IScsiProcessLoginRsp (
IN ISCSI_CONNECTION *Conn,
IN NET_BUF *Pdu
);
EFI_STATUS
IScsiUpdateTargetAddress (
IN ISCSI_SESSION *Session,
IN CHAR8 *Data,
IN UINT32 Len
);
VOID
IScsiFreeNbufList (
VOID *Arg
);
EFI_STATUS
IScsiReceivePdu (
IN ISCSI_CONNECTION *Conn,
OUT NET_BUF **Pdu,
IN ISCSI_IN_BUFFER_CONTEXT *Context, OPTIONAL
IN BOOLEAN HeaderDigest,
IN BOOLEAN DataDigest,
IN EFI_EVENT TimeoutEvent OPTIONAL
);
EFI_STATUS
IScsiCheckOpParams (
IN ISCSI_CONNECTION *Conn,
IN BOOLEAN Transit
);
EFI_STATUS
IScsiFillOpParams (
IN ISCSI_CONNECTION *Conn,
IN NET_BUF *Pdu
);
EFI_STATUS
IScsiPadSegment (
IN NET_BUF *Pdu,
IN UINT32 Len
);
LIST_ENTRY *
IScsiBuildKeyValueList (
IN CHAR8 *Data,
IN UINT32 Len
);
CHAR8 *
IScsiGetValueByKeyFromList (
IN LIST_ENTRY *KeyValueList,
IN CHAR8 *Key
);
VOID
IScsiFreeKeyValueList (
IN LIST_ENTRY *KeyValueList
);
EFI_STATUS
IScsiNormalizeName (
IN CHAR8 *Name,
IN UINTN Len
);
EFI_STATUS
IScsiExecuteScsiCommand (
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *PassThru,
IN UINT8 *Target,
IN UINT64 Lun,
IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet
);
EFI_STATUS
IScsiSessionReinstatement (
IN ISCSI_DRIVER_DATA *Private
);
VOID
IScsiSessionInit (
IN ISCSI_SESSION *Session,
IN BOOLEAN Recovery
);
EFI_STATUS
IScsiSessionAbort (
IN ISCSI_SESSION *Session
);
#endif
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