-/*++\r
+/** @file\r
+ The header file of iSCSI Protocol that defines many specific data structures.\r
\r
-Copyright (c) 2004 - 2008, Intel Corporation\r
+Copyright (c) 2004 - 2010, Intel Corporation.<BR>\r
All rights reserved. This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
-Module Name:\r
-\r
- IScsiProto.h\r
-\r
-Abstract:\r
-\r
- Protocol definitions for iSCSI driver, mainly from RFC3720.\r
-\r
---*/\r
+**/\r
\r
#ifndef _ISCSI_PROTO_H_\r
#define _ISCSI_PROTO_H_\r
#define ISCSI_SEQ_EQ(s1, s2) ((s1) == (s2))\r
#define ISCSI_SEQ_LT(s1, s2) \\r
( \\r
- (((INT32) (s1) < (INT32) (s2)) && (s2 - s1) < (1 << 31)) || \\r
- (((INT32) (s1) > (INT32) (s2)) && (s1 - s2) > (1 << 31)) \\r
+ (((INT32) (s1) < (INT32) (s2)) && (s2 - s1) < ((UINT32) 1 << 31)) || \\r
+ (((INT32) (s1) > (INT32) (s2)) && (s1 - s2) > ((UINT32) 1 << 31)) \\r
)\r
#define ISCSI_SEQ_GT(s1, s2) \\r
( \\r
- (((INT32) (s1) < (INT32) (s2)) && (s2 - s1) > (1 << 31)) || \\r
- (((INT32) (s1) > (INT32) (s2)) && (s1 - s2) < (1 << 31)) \\r
+ (((INT32) (s1) < (INT32) (s2)) && (s2 - s1) > ((UINT32) 1 << 31)) || \\r
+ (((INT32) (s1) > (INT32) (s2)) && (s1 - s2) < ((UINT32) 1 << 31)) \\r
)\r
\r
#define ISCSI_WELL_KNOWN_PORT 3260\r
\r
#define ISCSI_KEY_VALUE_NONE "None"\r
\r
-//\r
-// connection state for initiator\r
-//\r
-typedef enum {\r
- CONN_STATE_FREE,\r
- CONN_STATE_XPT_WAIT,\r
- CONN_STATE_IN_LOGIN,\r
- CONN_STATE_LOGGED_IN,\r
- CONN_STATE_IN_LOGOUT,\r
- CONN_STATE_LOGOUT_REQUESTED,\r
- CONN_STATE_CLEANUP_WAIT,\r
- CONN_STATE_IN_CLEANUP\r
-} CONNECTION_STATE;\r
-\r
-//\r
-// session state for initiator\r
-//\r
-typedef enum {\r
- SESSION_STATE_FREE,\r
- SESSION_STATE_LOGGED_IN,\r
- SESSION_STATE_FAILED\r
-} SESSION_STATE;\r
+///\r
+/// connection state for initiator\r
+///\r
+\r
+#define CONN_STATE_FREE 0\r
+#define CONN_STATE_XPT_WAIT 1\r
+#define CONN_STATE_IN_LOGIN 2\r
+#define CONN_STATE_LOGGED_IN 3\r
+#define CONN_STATE_IN_LOGOUT 4\r
+#define CONN_STATE_LOGOUT_REQUESTED 5\r
+#define CONN_STATE_CLEANUP_WAIT 6\r
+#define CONN_STATE_IN_CLEANUP 7\r
+\r
+///\r
+/// session state for initiator\r
+///\r
+#define SESSION_STATE_FREE 0\r
+#define SESSION_STATE_LOGGED_IN 1\r
+#define SESSION_STATE_FAILED 2\r
\r
typedef enum {\r
DataIn = 0,\r
\r
#define ISCSI_BHS_FLAG_FINAL 0x80\r
\r
-//\r
-// iSCSI Basic Header Segment\r
-//\r
+///\r
+/// iSCSI Basic Header Segment\r
+///\r
typedef struct _ISCSI_BASIC_HEADER {\r
UINT8 OpCode;\r
UINT8 Flags;\r
#define ISCSI_TASK_ATTR_HOQ 0x03\r
#define ISCSI_TASK_ATTR_ACA 0x04\r
\r
-//\r
-// SCSI Command\r
-//\r
+///\r
+/// SCSI Command\r
+///\r
typedef struct _SCSI_COMMAND {\r
UINT8 OpCode;\r
UINT8 Flags;\r
UINT32 ExpDataXferLength;\r
UINT32 CmdSN;\r
UINT32 ExpStatSN;\r
- UINT8 CDB[16];\r
+ UINT8 Cdb[16];\r
} SCSI_COMMAND;\r
\r
//\r
#define ISCSI_SERVICE_RSP_COMMAND_COMPLETE_AT_TARGET 0x00\r
#define ISCSI_SERVICE_RSP_TARGET_FAILURE 0x01\r
\r
-//\r
-// SCSI Response\r
-//\r
+///\r
+/// SCSI Response\r
+///\r
typedef struct _SCSI_RESPONSE {\r
UINT8 OpCode;\r
UINT8 Flags;\r
UINT8 Data[2];\r
} ISCSI_SENSE_DATA;\r
\r
-//\r
-// iSCSI Task Managment Function Request\r
-//\r
+///\r
+/// iSCSI Task Managment Function Request\r
+///\r
typedef struct _ISCSI_TMF_REQUEST {\r
UINT8 OpCode;\r
UINT8 Fuction;\r
#define ISCSI_TMF_RSP_PDU_RSP_FUNCTION_AHTH_FAILED 6\r
#define ISCSI_TMF_RSP_PDU_RSP_FUNCTION_REJECTED 255\r
\r
-//\r
-// iSCSI Task Management Function Response\r
-//\r
+///\r
+/// iSCSI Task Management Function Response\r
+///\r
typedef struct _ISCSI_TMF_RESPONSE {\r
UINT8 OpCode;\r
UINT8 Reserved1;\r
UINT32 Reserved[3];\r
} ISCSI_TMF_RESPONSE;\r
\r
-//\r
-// SCSI Data-Out\r
-//\r
+///\r
+/// SCSI Data-Out\r
+///\r
typedef struct _ISCSI_SCSI_DATA_OUT {\r
UINT8 OpCode;\r
UINT8 Reserved1[3];\r
#define SCSI_DATA_IN_PDU_FLAG_OVERFLOW SCSI_RSP_PDU_FLAG_OVERFLOW\r
#define SCSI_DATA_IN_PDU_FLAG_UNDERFLOW SCSI_RSP_PDU_FLAG_UNDERFLOW\r
#define SCSI_DATA_IN_PDU_FLAG_STATUS_VALID 0x01\r
-//\r
-// SCSI Data-In\r
-//\r
+\r
+///\r
+/// SCSI Data-In\r
+///\r
typedef struct _ISCSI_SCSI_DATA_IN {\r
UINT8 OpCode;\r
UINT8 Flags;\r
} ISCSI_SCSI_DATA_IN;\r
\r
#define ISCSI_GET_BUFFER_OFFSET(PduHdr) NTOHL (((ISCSI_SCSI_DATA_IN *) (PduHdr))->BufferOffset)\r
-//\r
-// Ready To Transfer\r
-//\r
+\r
+///\r
+/// Ready To Transfer\r
+///\r
typedef struct _ISCSI_READY_TO_TRANSFER {\r
UINT8 OpCode;\r
UINT8 Reserved1[3];\r
UINT32 StatSN;\r
UINT32 ExpCmdSN;\r
UINT32 MaxCmdSN;\r
- UINT32 R2TSN;\r
+ UINT32 R2TSeqNum;\r
UINT32 BufferOffset;\r
UINT32 DesiredDataTransferLength;\r
} ISCSI_READY_TO_TRANSFER;\r
#define ISCSI_LOGIN_REQ_PDU_FLAG_TRANSIT 0x80\r
#define ISCSI_LOGIN_REQ_PDU_FLAG_CONTINUE 0x40\r
\r
-//\r
-// Login Request\r
-//\r
+///\r
+/// Login Request\r
+///\r
typedef struct _ISCSI_LOGIN_REQUEST {\r
UINT8 OpCode;\r
UINT8 Flags;\r
UINT8 VersionMin;\r
UINT8 TotalAHSLength;\r
UINT8 DataSegmentLength[3];\r
- UINT8 ISID[6];\r
- UINT16 TSIH;\r
+ UINT8 Isid[6];\r
+ UINT16 Tsih;\r
UINT32 InitiatorTaskTag;\r
- UINT16 CID;\r
+ UINT16 Cid;\r
UINT16 Reserved1;\r
UINT32 CmdSN;\r
UINT32 ExpStatSN;\r
#define ISCSI_LOGIN_STATUS_INITIATOR_ERROR 2\r
#define ISCSI_LOGIN_STATUS_TARGET_ERROR 3\r
\r
-//\r
-// Login Response\r
-//\r
+///\r
+/// Login Response\r
+///\r
typedef struct _ISCSI_LOGIN_RESPONSE {\r
UINT8 OpCode;\r
UINT8 Flags;\r
UINT8 VersionActive;\r
UINT8 TotalAHSLength;\r
UINT8 DataSegmentLength[3];\r
- UINT8 ISID[6];\r
- UINT16 TSIH;\r
+ UINT8 Isid[6];\r
+ UINT16 Tsih;\r
UINT32 InitiatorTaskTag;\r
UINT32 Reserved1;\r
UINT32 StatSN;\r
#define ISCSI_LOGOUT_REASON_CLOSE_CONNECTION 1\r
#define ISCSI_LOGOUT_REASON_REMOVE_CONNECTION_FOR_RECOVERY 2\r
\r
-//\r
-// Logout Request\r
-//\r
+///\r
+/// Logout Request\r
+///\r
typedef struct _ISCSI_LOGOUT_REQUEST {\r
UINT8 OpCode;\r
UINT8 ReasonCode;\r
UINT8 DataSegmentLength[3];\r
UINT32 Reserved2[2];\r
UINT32 InitiatorTaskTag;\r
- UINT16 CID;\r
+ UINT16 Cid;\r
UINT16 Reserved3;\r
UINT32 CmdSN;\r
UINT32 ExpStatSN;\r
#define ISCSI_LOGOUT_RESPONSE_RECOVERY_NOT_SUPPORTED 2\r
#define ISCSI_LOGOUT_RESPONSE_CLEANUP_FAILED 3\r
\r
-//\r
-// Logout Response\r
-//\r
+///\r
+/// Logout Response\r
+///\r
typedef struct _ISCSI_LOGOUT_RESPONSE {\r
UINT8 OpCode;\r
UINT8 Reserved1;\r
#define ISCSI_SNACK_REQUEST_TYPE_DATA_ACK 2\r
#define ISCSI_SNACK_REQUEST_TYPE_RDATA 3\r
\r
-//\r
-// SNACK Request\r
-//\r
+///\r
+/// SNACK Request\r
+///\r
typedef struct _ISCSI_SNACK_REQUEST {\r
UINT8 OpCode;\r
UINT8 Type;\r
UINT32 RunLength;\r
} ISCSI_SNACK_REQUEST;\r
\r
-//\r
-// Reject\r
-//\r
+///\r
+/// Reject\r
+///\r
typedef struct _ISCSI_REJECT {\r
UINT8 OpCode;\r
UINT8 Reserved1;\r
UINT32 Reserved5[2];\r
} ISCSI_REJECT;\r
\r
-//\r
-// NOP-Out\r
-//\r
+///\r
+/// NOP-Out\r
+///\r
typedef struct _ISCSI_NOP_OUT {\r
UINT8 OpCode;\r
UINT8 Reserved1[3];\r
UINT32 Reserved2[4];\r
} ISCSI_NOP_OUT;\r
\r
-//\r
-// NOP-In\r
-//\r
+///\r
+/// NOP-In\r
+///\r
typedef struct _ISCSI_NOP_IN {\r
UINT8 OpCode;\r
UINT8 Reserved1[3];\r
#define ISCSI_FULL_FEATURE_PHASE 3\r
\r
typedef enum {\r
- ISCSI_DIGEST_NONE,\r
- ISCSI_DIGEST_CRC32\r
+ IScsiDigestNone,\r
+ IScsiDigestCRC32\r
} ISCSI_DIGEST_TYPE;\r
\r
typedef struct _ISCSI_XFER_CONTEXT {\r
CHAR8 *Value;\r
} ISCSI_KEY_VALUE_PAIR;\r
\r
-//\r
-// function prototypes.\r
-//\r
+/**\r
+ Attach the iSCSI connection to the iSCSI session. \r
+\r
+ @param[in, out] Session The iSCSI session.\r
+ @param[in, out] Conn The iSCSI connection.\r
+**/\r
VOID\r
IScsiAttatchConnection (\r
- IN ISCSI_SESSION *Session,\r
- IN ISCSI_CONNECTION *Conn\r
+ IN OUT ISCSI_SESSION *Session,\r
+ IN OUT ISCSI_CONNECTION *Conn\r
);\r
\r
+/**\r
+ Detach the iSCSI connection from the session it belongs to. \r
+\r
+ @param[in, out] Conn The iSCSI connection.\r
+**/\r
VOID\r
IScsiDetatchConnection (\r
- IN ISCSI_CONNECTION *Conn\r
+ IN OUT ISCSI_CONNECTION *Conn\r
);\r
\r
+/**\r
+ This function does the iSCSI connection login.\r
+\r
+ @param[in, out] Conn The iSCSI connection to login.\r
+\r
+ @retval EFI_SUCCESS The iSCSI connection is logged into the iSCSI target.\r
+ @retval EFI_TIMEOUT Timeout happened during the login procedure.\r
+ @retval Others Other errors as indicated. \r
+**/\r
EFI_STATUS\r
IScsiConnLogin (\r
- IN ISCSI_CONNECTION *Conn\r
+ IN OUT ISCSI_CONNECTION *Conn\r
);\r
\r
-ISCSI_CONNECTION *\r
+/**\r
+ Create a TCP connection for the iSCSI session.\r
+\r
+ @param[in] Private The iSCSI driver data.\r
+ @param[in] Session Maximum CmdSN from the target.\r
+\r
+ @return The newly created iSCSI connection.\r
+**/\r
+ISCSI_CONNECTION *\r
IScsiCreateConnection (\r
IN ISCSI_DRIVER_DATA *Private,\r
IN ISCSI_SESSION *Session\r
);\r
\r
+/**\r
+ Destroy an iSCSI connection.\r
+\r
+ @param[in] Conn The connection to destroy.\r
+**/\r
VOID\r
IScsiDestroyConnection (\r
IN ISCSI_CONNECTION *Conn\r
);\r
\r
+/**\r
+ Login the iSCSI session.\r
+\r
+ @param[in] Private The iSCSI driver data.\r
+\r
+ @retval EFI_SUCCESS The iSCSI session login procedure finished.\r
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r
+ @retval EFI_NO_MEDIA There was a media error.\r
+ @retval Others Other errors as indicated.\r
+\r
+**/\r
EFI_STATUS\r
IScsiSessionLogin (\r
IN ISCSI_DRIVER_DATA *Private\r
);\r
\r
+/**\r
+ Build and send the iSCSI login request to the iSCSI target according to\r
+ the current login stage.\r
+\r
+ @param[in] Conn The connection in the iSCSI login phase.\r
+\r
+ @retval EFI_SUCCESS The iSCSI login request PDU is built and sent on this\r
+ connection.\r
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r
+ @retval EFI_DEVICE_ERROR Some kind of device error happened.\r
+**/\r
EFI_STATUS\r
IScsiSendLoginReq (\r
IN ISCSI_CONNECTION *Conn\r
);\r
\r
+/**\r
+ Receive and process the iSCSI login response.\r
+\r
+ @param[in] Conn The connection in the iSCSI login phase.\r
+ \r
+ @retval EFI_SUCCESS The iSCSI login response PDU is received and processed.\r
+ @retval Others Other errors as indicated.\r
+**/\r
EFI_STATUS\r
IScsiReceiveLoginRsp (\r
IN ISCSI_CONNECTION *Conn\r
);\r
\r
+/**\r
+ Add an iSCSI key-value pair as a string into the data segment of the Login Request PDU.\r
+ The DataSegmentLength and the actual size of the net buffer containing this PDU will be\r
+ updated.\r
+\r
+ @param[in, out] Pdu The iSCSI PDU whose data segment the key-value pair will\r
+ be added to.\r
+ @param[in] Key The key name string.\r
+ @param[in] Value The value string.\r
+\r
+ @retval EFI_SUCCESS The key-valu pair is added to the PDU's datasegment and\r
+ the correspondence length fields are updated.\r
+ @retval EFI_OUT_OF_RESOURCES There is not enough space in the PDU to add the key-value\r
+ pair.\r
+**/\r
EFI_STATUS\r
IScsiAddKeyValuePair (\r
- IN NET_BUF *Pdu,\r
+ IN OUT NET_BUF *Pdu,\r
IN CHAR8 *Key,\r
IN CHAR8 *Value\r
);\r
\r
-NET_BUF *\r
+/**\r
+ Prepare the iSCSI login request to be sent according to the current login status.\r
+\r
+ @param[in, out] Conn The connection in the iSCSI login phase.\r
+\r
+ @return The pointer to the net buffer containing the iSCSI login request built.\r
+ @retval Others Other errors as indicated.\r
+**/\r
+NET_BUF *\r
IScsiPrepareLoginReq (\r
- IN ISCSI_CONNECTION *Conn\r
+ IN OUT ISCSI_CONNECTION *Conn\r
);\r
\r
+/**\r
+ Process the iSCSI Login Response.\r
+\r
+ @param[in, out] Conn The connection on which the iSCSI login response is received.\r
+ @param[in, out] Pdu The iSCSI login response PDU.\r
+\r
+ @retval EFI_SUCCESS The iSCSI login response PDU is processed and all check are passed.\r
+ @retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.\r
+ @retval EFI_MEDIA_CHANGED Target is redirected.\r
+ @retval Others Other errors as indicated.\r
+**/\r
EFI_STATUS\r
IScsiProcessLoginRsp (\r
- IN ISCSI_CONNECTION *Conn,\r
- IN NET_BUF *Pdu\r
+ IN OUT ISCSI_CONNECTION *Conn,\r
+ IN OUT NET_BUF *Pdu\r
);\r
\r
+/**\r
+ Updated the target information according the data received in the iSCSI\r
+ login response with an target redirection status.\r
+\r
+ @param[in, out] Session The iSCSI session.\r
+ @param[in] Data The data segment which should contain the\r
+ TargetAddress key-value list.\r
+ @param[in] Len Length of the data.\r
+ \r
+ @retval EFI_SUCCESS The target address is updated.\r
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r
+ @retval EFI_NOT_FOUND The TargetAddress key is not found.\r
+ @retval Others Other errors as indicated.\r
+**/\r
EFI_STATUS\r
IScsiUpdateTargetAddress (\r
- IN ISCSI_SESSION *Session,\r
- IN CHAR8 *Data,\r
- IN UINT32 Len\r
+ IN OUT ISCSI_SESSION *Session,\r
+ IN CHAR8 *Data,\r
+ IN UINT32 Len\r
);\r
\r
+/**\r
+ The callback function to free the net buffer list.\r
+\r
+ @param[in] Arg The opaque parameter.\r
+**/\r
VOID\r
IScsiFreeNbufList (\r
VOID *Arg\r
);\r
\r
+/**\r
+ Receive an iSCSI response PDU. An iSCSI response PDU contains an iSCSI PDU header and\r
+ an optional data segment. The two parts will be put into two blocks of buffers in the\r
+ net buffer. The digest check will be conducted in this function if needed and the digests\r
+ will be trimmed from the PDU buffer.\r
+\r
+ @param[in] Conn The iSCSI connection to receive data from.\r
+ @param[out] Pdu The received iSCSI pdu.\r
+ @param[in] Context The context used to describe information on the caller provided\r
+ buffer to receive data segment of the iSCSI pdu, it's optional.\r
+ @param[in] HeaderDigest Whether there will be header digest received.\r
+ @param[in] DataDigest Whether there will be data digest.\r
+ @param[in] TimeoutEvent The timeout event, it's optional.\r
+\r
+ @retval EFI_SUCCESS An iSCSI pdu is received.\r
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r
+ @retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.\r
+ @retval Others Other errors as indicated.\r
+**/\r
EFI_STATUS\r
IScsiReceivePdu (\r
IN ISCSI_CONNECTION *Conn,\r
IN EFI_EVENT TimeoutEvent OPTIONAL\r
);\r
\r
+/**\r
+ Check and get the result of the prameter negotiation.\r
+\r
+ @param[in, out] Conn The connection in iSCSI login.\r
+\r
+ @retval EFI_SUCCESS The parmeter check is passed and negotiation is finished.\r
+ @retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.\r
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r
+**/\r
EFI_STATUS\r
IScsiCheckOpParams (\r
- IN ISCSI_CONNECTION *Conn,\r
- IN BOOLEAN Transit\r
+ IN OUT ISCSI_CONNECTION *Conn\r
);\r
\r
+/**\r
+ Fill the oprational prameters.\r
+\r
+ @param[in] Conn The connection in iSCSI login.\r
+ @param[in, out] Pdu The iSCSI login request PDU to fill the parameters.\r
+\r
+ @retval EFI_SUCCESS The parmeters are filled into the iSCSI login request PDU.\r
+**/\r
EFI_STATUS\r
IScsiFillOpParams (\r
IN ISCSI_CONNECTION *Conn,\r
- IN NET_BUF *Pdu\r
+ IN OUT NET_BUF *Pdu\r
);\r
\r
+/**\r
+ Pad the iSCSI AHS or data segment to an integer number of 4 byte words.\r
+\r
+ @param[in, out] Pdu The iSCSI pdu which contains segments to pad.\r
+ @param[in] Len The length of the last semgnet in the PDU.\r
+\r
+ @retval EFI_SUCCESS The segment is padded or no need to pad it.\r
+ @retval EFI_OUT_OF_RESOURCES There is not enough remaining free space to add the\r
+ padding bytes.\r
+**/\r
EFI_STATUS\r
IScsiPadSegment (\r
- IN NET_BUF *Pdu,\r
- IN UINT32 Len\r
+ IN OUT NET_BUF *Pdu,\r
+ IN UINT32 Len\r
);\r
\r
-LIST_ENTRY *\r
+/**\r
+ Build a key-value list from the data segment.\r
+\r
+ @param[in] Data The data segment containing the key-value pairs.\r
+ @param[in] Len Length of the data segment.\r
+\r
+ @return The key-value list.\r
+ @retval NULL Other errors as indicated.\r
+**/\r
+LIST_ENTRY *\r
IScsiBuildKeyValueList (\r
IN CHAR8 *Data,\r
IN UINT32 Len\r
);\r
\r
-CHAR8 *\r
+/**\r
+ Get the value string by the key name from the key-value list. If found,\r
+ the key-value entry will be removed from the list.\r
+\r
+ @param[in, out] KeyValueList The key-value list.\r
+ @param[in] Key The key name to find.\r
+\r
+ @return The value string.\r
+**/\r
+CHAR8 *\r
IScsiGetValueByKeyFromList (\r
- IN LIST_ENTRY *KeyValueList,\r
+ IN OUT LIST_ENTRY *KeyValueList,\r
IN CHAR8 *Key\r
);\r
\r
+/**\r
+ Free the key-value list.\r
+\r
+ @param[in] KeyValueList The key-value list.\r
+**/\r
VOID\r
IScsiFreeKeyValueList (\r
IN LIST_ENTRY *KeyValueList\r
);\r
\r
+/**\r
+ Normalize the iSCSI name according to RFC.\r
+\r
+ @param[in, out] Name The iSCSI name.\r
+ @param[in] Len length of the iSCSI name.\r
+\r
+ @retval EFI_SUCCESS The iSCSI name is valid and normalized.\r
+ @retval EFI_PROTOCOL_ERROR The iSCSI name is mal-formatted or not in the IQN format.\r
+**/\r
EFI_STATUS\r
IScsiNormalizeName (\r
- IN CHAR8 *Name,\r
- IN UINTN Len\r
+ IN OUT CHAR8 *Name,\r
+ IN UINTN Len\r
);\r
\r
+/**\r
+ Execute the SCSI command issued through the EXT SCSI PASS THRU protocol.\r
+\r
+ @param[in] PassThru The EXT SCSI PASS THRU protocol.\r
+ @param[in] Target The target ID.\r
+ @param[in] Lun The LUN.\r
+ @param[in, out] Packet The request packet containing IO request, SCSI command\r
+ buffer and buffers to read/write.\r
+ \r
+ @retval EFI_SUCCES The SCSI command is executed and the result is updated to \r
+ the Packet.\r
+ @retval EFI_DEVICE_ERROR Session state was not as required.\r
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r
+ @retval Others Other errors as indicated.\r
+**/\r
EFI_STATUS\r
IScsiExecuteScsiCommand (\r
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *PassThru,\r
IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet\r
);\r
\r
+/**\r
+ Reinstate the session on some error.\r
+\r
+ @param[in, out] Private The iSCSI driver data.\r
+\r
+ @retval EFI_SUCCES The session is reinstated from some error.\r
+ @retval Other Reinstatement failed.\r
+**/\r
EFI_STATUS\r
IScsiSessionReinstatement (\r
- IN ISCSI_DRIVER_DATA *Private\r
+ IN OUT ISCSI_DRIVER_DATA *Private\r
);\r
\r
+/**\r
+ Initialize some session parameters before login.\r
+\r
+ @param[in, out] Session The iSCSI session.\r
+ @param[in] Recovery Whether the request is from a fresh new start or recovery.\r
+**/\r
VOID\r
IScsiSessionInit (\r
- IN ISCSI_SESSION *Session,\r
- IN BOOLEAN Recovery\r
+ IN OUT ISCSI_SESSION *Session,\r
+ IN BOOLEAN Recovery\r
);\r
+ \r
+/**\r
+ Abort the iSCSI session, that is, reset all the connection and free the\r
+ resources.\r
+\r
+ @param[in, out] Session The iSCSI session.\r
\r
+ @retval EFI_SUCCES The session is aborted.\r
+**/\r
EFI_STATUS\r
IScsiSessionAbort (\r
- IN ISCSI_SESSION *Session\r
+ IN OUT ISCSI_SESSION *Session\r
);\r
\r
#endif\r
projects / mirror_edk2.git / blobdiff