diff options
| author | eric_tian <eric_tian@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-01-22 08:07:35 +0000 |
|---|---|---|
| committer | eric_tian <eric_tian@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-01-22 08:07:35 +0000 |
| commit | 7a444476b4ffb405006ee36d0f2cec80c2d4b348 (patch) | |
| tree | cb8c0bb40870c5ea06b2cba5d44049eaa43b949e /MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.h | |
| parent | 08a4be3b4541adcf8e230c31e5e409448c606a5c (diff) | |
| download | edk2-platforms-7a444476b4ffb405006ee36d0f2cec80c2d4b348.tar.xz | |
move iscsi driver into network directory, and change its name to comply with name convention.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4612 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.h')
| -rw-r--r-- | MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.h | 786 |
1 files changed, 786 insertions, 0 deletions
diff --git a/MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.h b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.h new file mode 100644 index 0000000000..d01b635afc --- /dev/null +++ b/MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.h @@ -0,0 +1,786 @@ +/*++
+
+Copyright (c) 2004 - 2007, 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 {
+ NET_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 {
+ NET_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
+ );
+
+NET_LIST_ENTRY *
+IScsiBuildKeyValueList (
+ IN CHAR8 *Data,
+ IN UINT32 Len
+ );
+
+CHAR8 *
+IScsiGetValueByKeyFromList (
+ IN NET_LIST_ENTRY *KeyValueList,
+ IN CHAR8 *Key
+ );
+
+VOID
+IScsiFreeKeyValueList (
+ IN NET_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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