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update file header 

update function header


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6963 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
ywu21 2008-12-10 04:04:45 +00:00
parent 2dce4b43f5
commit db3e605d07
2 changed files with 280 additions and 479 deletions
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408
MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.c
View File

@ -1,7 +1,7 @@
/** @file
The implementation of IScsi protocol based on RFC3720
The implementation of IScsi protocol based on RFC3720.
Copyright (c) 2004 - 2008, Intel Corporation
Copyright (c) 2004 - 2008, Intel Corporation.<BR>
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
@ -10,13 +10,6 @@ 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.c
Abstract:
The implementation of IScsi protocol based on RFC3720
**/
#include "IScsiImpl.h"
@ -26,12 +19,8 @@ UINT32 mDataSegPad = 0;
/**
Attach the iSCSI connection to the iSCSI session.
@param Session[in] The iSCSI session.
@param Conn[in] The iSCSI connection.
@retval None.
@param[in] Session The iSCSI session.
@param[in] Conn The iSCSI connection.
**/
VOID
IScsiAttatchConnection (
@ -47,10 +36,7 @@ IScsiAttatchConnection (
/**
Detach the iSCSI connection from the session it belongs to.
@param Conn[in] The iSCSI connection.
@retval None.
@param[in] Conn The iSCSI connection.
**/
VOID
IScsiDetatchConnection (
@ -65,12 +51,12 @@ IScsiDetatchConnection (
/**
Check the sequence number according to RFC3720.
@param ExpSN[in] The currently expected sequence number.
@param NewSN[in] The sequence number to check.
@retval EFI_SUCCESS The check passed and the ExpSN is increased.
@param[in] ExpSN The currently expected sequence number.
@param[in] NewSN The sequence number to check.
@retval EFI_SUCCESS The check passed and the ExpSN is increased.
@retval EFI_NOT_READY Response was sent due to a retransmission request.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
**/
EFI_STATUS
IScsiCheckSN (
@ -99,14 +85,9 @@ IScsiCheckSN (
/**
Update the sequence numbers for the iSCSI command.
@param Session[in] The iSCSI session.
@param MaxCmdSN[in] Maximum CmdSN from the target.
@param ExpCmdSN[in] Next expected CmdSN from the target.
@retval None.
@param[in] Session The iSCSI session.
@param[in] MaxCmdSN Maximum CmdSN from the target.
@param[in] ExpCmdSN Next expected CmdSN from the target.
**/
VOID
IScsiUpdateCmdSN (
@ -131,14 +112,11 @@ IScsiUpdateCmdSN (
/**
This function does the iSCSI connection login.
@param Conn[in] The iSCSI connection to login.
@param[in] Conn The iSCSI connection to login.
@retval EFI_SUCCESS The iSCSI connection is logged into the iSCSI target.
@retval EFI_TIMEOUT Timeout happened during the login procedure.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiConnLogin (
@ -186,10 +164,7 @@ IScsiConnLogin (
/**
Reset the iSCSI connection.
@param Conn[in] The iSCSI connection to reset.
@retval None.
@param[in] Conn The iSCSI connection to reset.
**/
VOID
IScsiConnReset (
@ -202,12 +177,10 @@ IScsiConnReset (
/**
Create a TCP connection for the iSCSI session.
@param Private[in] The iSCSI driver data.
@param Session[in] Maximum CmdSN from the target.
@retval The newly created iSCSI connection.
@param[in] Private The iSCSI driver data.
@param[in] Session Maximum CmdSN from the target.
@return The newly created iSCSI connection.
**/
ISCSI_CONNECTION *
IScsiCreateConnection (
@ -283,10 +256,7 @@ IScsiCreateConnection (
/**
Destroy an iSCSI connection.
@param Conn[in] The connection to destroy.
@retval None.
@param[in] Conn The connection to destroy.
**/
VOID
IScsiDestroyConnection (
@ -302,14 +272,11 @@ IScsiDestroyConnection (
/**
Login the iSCSI session.
@param Private[in] The iSCSI driver data.
@param[in] Private The iSCSI driver data.
@retval EFI_SUCCESS The iSCSI session login procedure finished.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiSessionLogin (
@ -361,15 +328,12 @@ IScsiSessionLogin (
Build and send the iSCSI login request to the iSCSI target according to
the current login stage.
@param Conn[in] The connection in the iSCSI login phase.
@param[in] Conn The connection in the iSCSI login phase.
@retval EFI_SUCCESS The iSCSI login request PDU is built and sent on this
connection.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@retval EFI_DEVICE_ERROR Some kind of device error happened.
**/
EFI_STATUS
IScsiSendLoginReq (
@ -399,14 +363,10 @@ IScsiSendLoginReq (
/**
Receive and process the iSCSI login response.
@param Conn[in] The connection in the iSCSI login phase.
@param[in] Conn The connection in the iSCSI login phase.
@retval EFI_SUCCESS The iSCSI login response PDU is received and processed.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiReceiveLoginRsp (
@ -438,19 +398,15 @@ IScsiReceiveLoginRsp (
The DataSegmentLength and the actual size of the net buffer containing this PDU will be
updated.
@param Pdu[in] The iSCSI PDU whose data segment the key-value pair will
@param[in] Pdu The iSCSI PDU whose data segment the key-value pair will
be added to.
@param Key[in] The key name string.
@param Value[in] The value string.
@param[in] Key The key name string.
@param[in] Value The value string.
@retval EFI_SUCCESS The key-valu pair is added to the PDU's datasegment and
the correspondence length fields are updated.
@retval EFI_OUT_OF_RESOURCES There is not enough space in the PDU to add the key-value
pair.
**/
EFI_STATUS
IScsiAddKeyValuePair (
@ -513,10 +469,10 @@ IScsiAddKeyValuePair (
/**
Prepare the iSCSI login request to be sent according to the current login status.
@param Conn[in] The connection in the iSCSI login phase.
@retval The pointer to the net buffer containing the iSCSI login request built.
@param[in] Conn The connection in the iSCSI login phase.
@return The pointer to the net buffer containing the iSCSI login request built.
@retval Others Some unexpected error happened.
**/
NET_BUF *
IScsiPrepareLoginReq (
@ -605,14 +561,13 @@ IScsiPrepareLoginReq (
/**
Process the iSCSI Login Response.
@param Conn[in] The connection on which the iSCSI login response is received.
@param Pdu[in] The iSCSI login response PDU.
@param[in] Conn The connection on which the iSCSI login response is received.
@param[in] Pdu The iSCSI login response PDU.
@retval EFI_SUCCESS The iSCSI login response PDU is processed and all check are passed.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@retval EFI_MEDIA_CHANGED Target is redirected.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiProcessLoginRsp (
@ -813,19 +768,15 @@ IScsiProcessLoginRsp (
Updated the target information according the data received in the iSCSI
login response with an target redirection status.
@param Session[in] The iSCSI session.
@param Data[in] The data segment which should contain the
TargetAddress key-value list.
@param Len[in] Length of the data.
@param[in] Session The iSCSI session.
@param[in] Data The data segment which should contain the
TargetAddress key-value list.
@param[in] Len Length of the data.
@retval EFI_SUCCESS The target address is updated.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval EFI_NOT_FOUND The TargetAddress key is not found.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiUpdateTargetAddress (
@ -864,7 +815,7 @@ IScsiUpdateTargetAddress (
IpStr = TargetAddress;
while (*TargetAddress && (*TargetAddress != ':') && (*TargetAddress != ',')) {
while ((*TargetAddress != 0) && (*TargetAddress != ':') && (*TargetAddress != ',')) {
//
// NULL, ':' or ',' ends the IPv4 string.
//
@ -913,10 +864,7 @@ IScsiUpdateTargetAddress (
/**
The callback function to free the net buffer list.
@param Arg[in] The opaque parameter.
@retval None.
@param[in] Arg The opaque parameter.
**/
VOID
IScsiFreeNbufList (
@ -932,10 +880,7 @@ IScsiFreeNbufList (
/**
The callback function called in NetBufFree, it does nothing.
@param Arg[in] The opaque parameter.
@retval None.
@param[in] Arg The opaque parameter.
**/
VOID
IScsiNbufExtFree (
@ -950,23 +895,18 @@ IScsiNbufExtFree (
net buffer. The digest check will be conducted in this function if needed and the digests
will be trimmed from the PDU buffer.
@param Conn[in] The iSCSI connection to receive data from.
@param Pdu[out] The received iSCSI pdu.
@param Context[in] The context used to describe information on the caller provided
@param[in] Conn The iSCSI connection to receive data from.
@param[out] Pdu The received iSCSI pdu.
@param[in] Context The context used to describe information on the caller provided
buffer to receive data segment of the iSCSI pdu, it's optional.
@param[in] HeaderDigest Whether there will be header digest received.
@param[in] DataDigest Whether there will be data digest.
@param[in] TimeoutEvent The timeout event, it's optional.
@param HeaderDigest[in] Whether there will be header digest received.
@param DataDigest[in] Whether there will be data digest.
@param TimeoutEvent[in] The timeout event, it's optional.
@retval EFI_SUCCESS An iSCSI pdu is received.
@retval EFI_TIMEOUT Timeout happenend.
@retval EFI_SUCCESS An iSCSI pdu is received.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiReceivePdu (
@ -1151,14 +1091,12 @@ ON_EXIT:
/**
Check and get the result of the prameter negotiation.
@param Conn[in] The connection in iSCSI login.
@param Pdu[in] The iSCSI response PDU containing the parameter list.
@retval EFI_SUCCESS The parmeter check is passed and negotiation is finished.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@param[in] Conn The connection in iSCSI login.
@param[in] Transit Whether need transit.
@retval EFI_SUCCESS The parmeter check is passed and negotiation is finished.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
**/
EFI_STATUS
IScsiCheckOpParams (
@ -1408,14 +1346,10 @@ ON_ERROR:
/**
Fill the oprational prameters.
@param Conn[in] The connection in iSCSI login.
@param Pdu[in] The iSCSI login request PDU to fill the parameters.
@param[in] Conn The connection in iSCSI login.
@param[in] Pdu The iSCSI login request PDU to fill the parameters.
@retval EFI_SUCCESS The parmeters are filled into the iSCSI login request PDU.
@retval EFI_OUT_OF_RESOURCES There is not enough space in the PDU to hold the parameters.
**/
EFI_STATUS
IScsiFillOpParams (
@ -1476,15 +1410,12 @@ IScsiFillOpParams (
/**
Pad the iSCSI AHS or data segment to an integer number of 4 byte words.
@param Pdu[in] The iSCSI pdu which contains segments to pad.
@param Len[in] The length of the last semgnet in the PDU.
@param[in] Pdu The iSCSI pdu which contains segments to pad.
@param[in] Len The length of the last semgnet in the PDU.
@retval EFI_SUCCESS The segment is padded or no need to pad it.
@retval EFI_OUT_OF_RESOURCES There is not enough remaining free space to add the
padding bytes.
**/
EFI_STATUS
IScsiPadSegment (
@ -1512,12 +1443,11 @@ IScsiPadSegment (
/**
Build a key-value list from the data segment.
@param Data[in] The data segment containing the key-value pairs.
@param Len[in] Length of the data segment.
@retval The key-value list.
@param[in] Data The data segment containing the key-value pairs.
@param[in] Len Length of the data segment.
@return The key-value list.
@return NULL Some unexpected error happened.
**/
LIST_ENTRY *
IScsiBuildKeyValueList (
@ -1581,12 +1511,10 @@ ON_ERROR:
Get the value string by the key name from the key-value list. If found,
the key-value entry will be removed from the list.
@param KeyValueList[in] The key-value list.
@param Key[in] The key name to find.
@retval The value string.
@param[in] KeyValueList The key-value list.
@param[in] Key The key name to find.
@return The value string.
**/
CHAR8 *
IScsiGetValueByKeyFromList (
@ -1618,10 +1546,7 @@ IScsiGetValueByKeyFromList (
/**
Free the key-value list.
@param KeyValueList[in] The key-value list.
@retval None.
@param[in] KeyValueList The key-value list.
**/
VOID
IScsiFreeKeyValueList (
@ -1644,14 +1569,11 @@ IScsiFreeKeyValueList (
/**
Normalize the iSCSI name according to RFC.
@param Name[in] The iSCSI name.
@param Len[in] length of the iSCSI name.
@param[in] Name The iSCSI name.
@param[in] Len length of the iSCSI name.
@retval EFI_SUCCESS The iSCSI name is valid and normalized.
@retval EFI_PROTOCOL_ERROR The iSCSI name is mal-formatted or not in the IQN format.
**/
EFI_STATUS
IScsiNormalizeName (
@ -1696,14 +1618,12 @@ IScsiNormalizeName (
/**
Create an iSCSI task control block.
@param Conn[in] The connection on which the task control block will be created.
@param Tcb[out] The newly created task control block.
@param[in] Conn The connection on which the task control block will be created.
@param[out] Tcb The newly created task control block.
@retval EFI_SUCCESS The task control block is created.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval EFI_NOT_READY The target can not accept new commands.
**/
EFI_STATUS
IScsiNewTcb (
@ -1750,10 +1670,7 @@ IScsiNewTcb (
/**
Delete the tcb from the connection and destroy it.
@param Tcb The tcb to delete.
@retval None.
@param[in] Tcb The tcb to delete.
**/
VOID
IScsiDelTcb (
@ -1768,12 +1685,10 @@ IScsiDelTcb (
/**
Find the task control block by the initator task tag.
@param TcbList[in] The tcb list.
@param InitiatorTaskTag[in] The initiator task tag.
@retval The task control block found.
@param[in] TcbList The tcb list.
@param[in] InitiatorTaskTag The initiator task tag.
@return The task control block found.
**/
ISCSI_TCB *
IScsiFindTcbByITT (
@ -1802,14 +1717,11 @@ IScsiFindTcbByITT (
/**
Create a data segment, pad it and calculate the CRC if needed.
@param Data[in] The data to fill into the data segment.
@param Len[in] Length of the data.
@param DataDigest[in] Whether to calculate CRC for this data segment.
@retval The net buffer wrapping the data segment.
@param[in] Data The data to fill into the data segment.
@param[in] Len Length of the data.
@param[in] DataDigest Whether to calculate CRC for this data segment.
@return The net buffer wrapping the data segment.
**/
NET_BUF *
IScsiNewDataSegment (
@ -1845,14 +1757,12 @@ IScsiNewDataSegment (
Create a iSCSI SCSI command PDU to encapsulate the command issued
by SCSI through the EXT SCSI PASS THRU Protocol.
@param Packet[in] The EXT SCSI PASS THRU request packet containing the SCSI command.
@param Lun[in] The LUN.
@param Tcb[in] The tcb assocated with this SCSI command.
@retval The created iSCSI SCSI command PDU.
@param[in] Packet The EXT SCSI PASS THRU request packet containing the SCSI command.
@param[in] Lun The LUN.
@param[in] Tcb The tcb assocated with this SCSI command.
@return The created iSCSI SCSI command PDU.
@return NULL Some unexpected error happened.
**/
NET_BUF *
IScsiNewScsiCmdPdu (
@ -2019,18 +1929,14 @@ ON_EXIT:
/**
Create a new iSCSI SCSI Data Out PDU.
@param Data[in] The data to put into the Data Out PDU.
@param Len[in] Length of the data.
@param DataSN[in] The DataSN of the Data Out PDU.
@param Tcb[in] The task control block of this Data Out PDU.
@param Lun[in] The LUN.
@retval The net buffer wrapping the Data Out PDU.
@param[in] Data The data to put into the Data Out PDU.
@param[in] Len Length of the data.
@param[in] DataSN The DataSN of the Data Out PDU.
@param[in] Tcb The task control block of this Data Out PDU.
@param[in] Lun The LUN.
@return The net buffer wrapping the Data Out PDU.
@return NULL Some unexpected error happened.
**/
NET_BUF *
IScsiNewDataOutPdu (
@ -2112,14 +2018,12 @@ IScsiNewDataOutPdu (
/**
Generate a consecutive sequence of iSCSI SCSI Data Out PDUs.
@param Data[in] The data which will be carried by the sequence of iSCSI SCSI Data Out PDUs.
@param Tcb[in] The task control block of the data to send out.
@param Lun[in] The LUN the data will be sent to.
@retval A list of net buffers with each of them wraps an iSCSI SCSI Data Out PDU.
@param[in] Data The data which will be carried by the sequence of iSCSI SCSI Data Out PDUs.
@param[in] Tcb The task control block of the data to send out.
@param[in] Lun The LUN the data will be sent to.
@return A list of net buffers with each of them wraps an iSCSI SCSI Data Out PDU.
@return NULL Some unexpected error happened.
**/
LIST_ENTRY *
IScsiGenerateDataOutPduSequence (
@ -2187,16 +2091,13 @@ ON_EXIT:
/**
Send the Data in a sequence of Data Out PDUs one by one.
@param Data[in] The data to carry by Data Out PDUs.
@param Lun[in] The LUN the data will be sent to.
@param Tcb[in] The task control block.
@param[in] Data The data to carry by Data Out PDUs.
@param[in] Lun The LUN the data will be sent to.
@param[in] Tcb The task control block.
@retval EFI_SUCCES The data is sent out to the LUN.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiSendDataOutPduSequence (
@ -2240,17 +2141,15 @@ IScsiSendDataOutPduSequence (
/**
Process the received iSCSI SCSI Data In PDU.
@param Pdu[in] The Data In PDU received.
@param Tcb[in] The task control block.
@param Packet[in][out] The EXT SCSI PASS THRU request packet.
@retval EFI_SUCCES The check on the Data IN PDU is passed and some update
actions are taken.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol errror happened.
@param[in] Pdu The Data In PDU received.
@param[in] Tcb The task control block.
@param[in, out] Packet The EXT SCSI PASS THRU request packet.
@retval EFI_SUCCES The check on the Data IN PDU is passed and some update
actions are taken.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol errror happened.
@retval EFI_BAD_BUFFER_SIZEE The buffer was not the proper size for the request.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiOnDataInRcvd (
@ -2328,18 +2227,14 @@ IScsiOnDataInRcvd (
/**
Process the received iSCSI R2T PDU.
@param Pdu[in] The R2T PDU received.
@param Tcb[in] The task control block.
@param Lun[in] The Lun.
@param Packet[in][out] The EXT SCSI PASS THRU request packet.
@param[in] Pdu The R2T PDU received.
@param[in] Tcb The task control block.
@param[in] Lun The Lun.
@param[in, out] Packet The EXT SCSI PASS THRU request packet.
@retval EFI_SUCCES The R2T PDU is valid and the solicited data is sent out.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol errror happened.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiOnR2TRcvd (
@ -2396,16 +2291,14 @@ IScsiOnR2TRcvd (
/**
Process the received iSCSI SCSI Response PDU.
@param Pdu[in] The Response PDU received.
@param Tcb[in] The task control block.
@param Packet[in][out] The EXT SCSI PASS THRU request packet.
@param[in] Pdu The Response PDU received.
@param[in] Tcb The task control block.
@param[in, out] Packet The EXT SCSI PASS THRU request packet.
@retval EFI_SUCCES The Response PDU is processed.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol errror happened.
@retval EFI_BAD_BUFFER_SIZEE The buffer was not the proper size for the request.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiOnScsiRspRcvd (
@ -2499,15 +2392,12 @@ IScsiOnScsiRspRcvd (
/**
Process the received NOP In PDU.
@param Pdu[in] The NOP In PDU received.
@param Tcb[in] The task control block.
@param[in] Pdu The NOP In PDU received.
@param[in] Tcb The task control block.
@retval EFI_SUCCES The NOP In PDU is processed and the related sequence
numbers are updated.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol errror happened.
**/
EFI_STATUS
IScsiOnNopInRcvd (
@ -2543,20 +2433,17 @@ IScsiOnNopInRcvd (
/**
Execute the SCSI command issued through the EXT SCSI PASS THRU protocol.
@param PassThru[in] The EXT SCSI PASS THRU protocol.
@param Target[in] The target ID.
@param Lun[in] The LUN.
@param Packet[in][out] The request packet containing IO request, SCSI command
buffer and buffers to read/write.
@retval EFI_SUCCES The SCSI command is executed and the result is updated to
the Packet.
@retval EFI_DEVICE_ERROR Some unexpected error happened.
@param[in] PassThru The EXT SCSI PASS THRU protocol.
@param[in] Target The target ID.
@param[in] Lun The LUN.
@param[in, out] Packet The request packet containing IO request, SCSI command
buffer and buffers to read/write.
@retval EFI_SUCCES The SCSI command is executed and the result is updated to
the Packet.
@retval EFI_DEVICE_ERROR Some unexpected error happened.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiExecuteScsiCommand (
@ -2657,7 +2544,7 @@ IScsiExecuteScsiCommand (
//
// Start the timeout timer.
//
if (Timeout) {
if (Timeout != 0) {
Status = gBS->SetTimer (Conn->TimeoutEvent, TimerRelative, Timeout);
if (EFI_ERROR (Status)) {
goto ON_EXIT;
@ -2734,12 +2621,10 @@ ON_EXIT:
/**
Reinstate the session on some error.
@param Private[in] The iSCSI driver data.
@param[in] Private The iSCSI driver data.
@retval EFI_SUCCES The session is reinstated from some error.
@retval other Reinstatement failed.
@retval Other Reinstatement failed.
**/
EFI_STATUS
IScsiSessionReinstatement (
@ -2769,12 +2654,8 @@ IScsiSessionReinstatement (
/**
Initialize some session parameters before login.
@param Session[in] The iSCSI session.
@param Recovery[in] Whether the request is from a fresh new start or recovery.
@retval None.
@param[in] Session The iSCSI session.
@param[in] Recovery Whether the request is from a fresh new start or recovery.
**/
VOID
IScsiSessionInit (
@ -2825,10 +2706,9 @@ IScsiSessionInit (
Abort the iSCSI session, that is, reset all the connection and free the
resources.
@param Session[in] The iSCSI session.
@param[in] Session The iSCSI session.
@retval EFI_SUCCES The session is aborted.
**/
EFI_STATUS
IScsiSessionAbort (

351
MdeModulePkg/Universal/Network/IScsiDxe/IScsiProto.h
View File

@ -1,7 +1,7 @@
/** @file
The header file of IScsi Protocol that defines many specific data structures.
Copyright (c) 2004 - 2008, Intel Corporation
Copyright (c) 2004 - 2008, Intel Corporation.<BR>
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
@ -10,14 +10,6 @@ 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_
@ -80,9 +72,9 @@ Abstract:
#define ISCSI_KEY_VALUE_NONE "None"
//
// connection state for initiator
//
///
/// connection state for initiator
///
typedef enum {
CONN_STATE_FREE,
CONN_STATE_XPT_WAIT,
@ -94,9 +86,9 @@ typedef enum {
CONN_STATE_IN_CLEANUP
} CONNECTION_STATE;
//
// session state for initiator
//
///
/// session state for initiator
///
typedef enum {
SESSION_STATE_FREE,
SESSION_STATE_LOGGED_IN,
@ -174,9 +166,9 @@ typedef enum {
#define ISCSI_BHS_FLAG_FINAL 0x80
//
// iSCSI Basic Header Segment
//
///
/// iSCSI Basic Header Segment
///
typedef struct _ISCSI_BASIC_HEADER {
UINT8 OpCode;
UINT8 Flags;
@ -221,9 +213,9 @@ typedef struct _ISCSI_BI_EXP_READ_DATA_LEN_AHS {
#define ISCSI_TASK_ATTR_HOQ 0x03
#define ISCSI_TASK_ATTR_ACA 0x04
//
// SCSI Command
//
///
/// SCSI Command
///
typedef struct _SCSI_COMMAND {
UINT8 OpCode;
UINT8 Flags;
@ -252,9 +244,9 @@ typedef struct _SCSI_COMMAND {
#define ISCSI_SERVICE_RSP_COMMAND_COMPLETE_AT_TARGET 0x00
#define ISCSI_SERVICE_RSP_TARGET_FAILURE 0x01
//
// SCSI Response
//
///
/// SCSI Response
///
typedef struct _SCSI_RESPONSE {
UINT8 OpCode;
UINT8 Flags;
@ -278,9 +270,9 @@ typedef struct _ISCSI_SENSE_DATA {
UINT8 Data[2];
} ISCSI_SENSE_DATA;
//
// iSCSI Task Managment Function Request
//
///
/// iSCSI Task Managment Function Request
///
typedef struct _ISCSI_TMF_REQUEST {
UINT8 OpCode;
UINT8 Fuction;
@ -306,9 +298,9 @@ typedef struct _ISCSI_TMF_REQUEST {
#define ISCSI_TMF_RSP_PDU_RSP_FUNCTION_AHTH_FAILED 6
#define ISCSI_TMF_RSP_PDU_RSP_FUNCTION_REJECTED 255
//
// iSCSI Task Management Function Response
//
///
/// iSCSI Task Management Function Response
///
typedef struct _ISCSI_TMF_RESPONSE {
UINT8 OpCode;
UINT8 Reserved1;
@ -325,9 +317,9 @@ typedef struct _ISCSI_TMF_RESPONSE {
UINT32 Reserved[3];
} ISCSI_TMF_RESPONSE;
//
// SCSI Data-Out
//
///
/// SCSI Data-Out
///
typedef struct _ISCSI_SCSI_DATA_OUT {
UINT8 OpCode;
UINT8 Reserved1[3];
@ -348,9 +340,10 @@ typedef struct _ISCSI_SCSI_DATA_OUT {
#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
//
///
/// SCSI Data-In
///
typedef struct _ISCSI_SCSI_DATA_IN {
UINT8 OpCode;
UINT8 Flags;
@ -370,9 +363,10 @@ typedef struct _ISCSI_SCSI_DATA_IN {
} ISCSI_SCSI_DATA_IN;
#define ISCSI_GET_BUFFER_OFFSET(PduHdr) NTOHL (((ISCSI_SCSI_DATA_IN *) (PduHdr))->BufferOffset)
//
// Ready To Transfer
//
///
/// Ready To Transfer
///
typedef struct _ISCSI_READY_TO_TRANSFER {
UINT8 OpCode;
UINT8 Reserved1[3];
@ -411,9 +405,9 @@ typedef struct _ISCSI_ASYNC_MESSAGE {
#define ISCSI_LOGIN_REQ_PDU_FLAG_TRANSIT 0x80
#define ISCSI_LOGIN_REQ_PDU_FLAG_CONTINUE 0x40
//
// Login Request
//
///
/// Login Request
///
typedef struct _ISCSI_LOGIN_REQUEST {
UINT8 OpCode;
UINT8 Flags;
@ -439,9 +433,9 @@ typedef struct _ISCSI_LOGIN_REQUEST {
#define ISCSI_LOGIN_STATUS_INITIATOR_ERROR 2
#define ISCSI_LOGIN_STATUS_TARGET_ERROR 3
//
// Login Response
//
///
/// Login Response
///
typedef struct _ISCSI_LOGIN_RESPONSE {
UINT8 OpCode;
UINT8 Flags;
@ -465,9 +459,9 @@ typedef struct _ISCSI_LOGIN_RESPONSE {
#define ISCSI_LOGOUT_REASON_CLOSE_CONNECTION 1
#define ISCSI_LOGOUT_REASON_REMOVE_CONNECTION_FOR_RECOVERY 2
//
// Logout Request
//
///
/// Logout Request
///
typedef struct _ISCSI_LOGOUT_REQUEST {
UINT8 OpCode;
UINT8 ReasonCode;
@ -488,9 +482,9 @@ typedef struct _ISCSI_LOGOUT_REQUEST {
#define ISCSI_LOGOUT_RESPONSE_RECOVERY_NOT_SUPPORTED 2
#define ISCSI_LOGOUT_RESPONSE_CLEANUP_FAILED 3
//
// Logout Response
//
///
/// Logout Response
///
typedef struct _ISCSI_LOGOUT_RESPONSE {
UINT8 OpCode;
UINT8 Reserved1;
@ -515,9 +509,9 @@ typedef struct _ISCSI_LOGOUT_RESPONSE {
#define ISCSI_SNACK_REQUEST_TYPE_DATA_ACK 2
#define ISCSI_SNACK_REQUEST_TYPE_RDATA 3
//
// SNACK Request
//
///
/// SNACK Request
///
typedef struct _ISCSI_SNACK_REQUEST {
UINT8 OpCode;
UINT8 Type;
@ -534,9 +528,9 @@ typedef struct _ISCSI_SNACK_REQUEST {
UINT32 RunLength;
} ISCSI_SNACK_REQUEST;
//
// Reject
//
///
/// Reject
///
typedef struct _ISCSI_REJECT {
UINT8 OpCode;
UINT8 Reserved1;
@ -554,9 +548,9 @@ typedef struct _ISCSI_REJECT {
UINT32 Reserved5[2];
} ISCSI_REJECT;
//
// NOP-Out
//
///
/// NOP-Out
///
typedef struct _ISCSI_NOP_OUT {
UINT8 OpCode;
UINT8 Reserved1[3];
@ -570,9 +564,9 @@ typedef struct _ISCSI_NOP_OUT {
UINT32 Reserved2[4];
} ISCSI_NOP_OUT;
//
// NOP-In
//
///
/// NOP-In
///
typedef struct _ISCSI_NOP_IN {
UINT8 OpCode;
UINT8 Reserved1[3];
@ -634,18 +628,11 @@ typedef struct _ISCSI_KEY_VALUE_PAIR {
CHAR8 *Value;
} ISCSI_KEY_VALUE_PAIR;
//
// function prototypes.
//
/**
Attach the iSCSI connection to the iSCSI session.
@param Session[in] The iSCSI session.
@param Conn[in] The iSCSI connection.
@retval None.
@param[in] Session The iSCSI session.
@param[in] Conn The iSCSI connection.
**/
VOID
IScsiAttatchConnection (
@ -656,10 +643,7 @@ IScsiAttatchConnection (
/**
Detach the iSCSI connection from the session it belongs to.
@param Conn[in] The iSCSI connection.
@retval None.
@param[in] Conn The iSCSI connection.
**/
VOID
IScsiDetatchConnection (
@ -669,14 +653,11 @@ IScsiDetatchConnection (
/**
This function does the iSCSI connection login.
@param Conn[in] The iSCSI connection to login.
@param[in] Conn The iSCSI connection to login.
@retval EFI_SUCCESS The iSCSI connection is logged into the iSCSI target.
@retval EFI_TIMEOUT Timeout happened during the login procedure.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiConnLogin (
@ -686,14 +667,12 @@ IScsiConnLogin (
/**
Create a TCP connection for the iSCSI session.
@param Private[in] The iSCSI driver data.
@param Session[in] Maximum CmdSN from the target.
@retval The newly created iSCSI connection.
@param[in] Private The iSCSI driver data.
@param[in] Session Maximum CmdSN from the target.
@return The newly created iSCSI connection.
**/
ISCSI_CONNECTION *
ISCSI_CONNECTION *
IScsiCreateConnection (
IN ISCSI_DRIVER_DATA *Private,
IN ISCSI_SESSION *Session
@ -702,10 +681,7 @@ IScsiCreateConnection (
/**
Destroy an iSCSI connection.
@param Conn[in] The connection to destroy.
@retval None.
@param[in] Conn The connection to destroy.
**/
VOID
IScsiDestroyConnection (
@ -715,14 +691,11 @@ IScsiDestroyConnection (
/**
Login the iSCSI session.
@param Private[in] The iSCSI driver data.
@param[in] Private The iSCSI driver data.
@retval EFI_SUCCESS The iSCSI session login procedure finished.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiSessionLogin (
@ -733,15 +706,12 @@ IScsiSessionLogin (
Build and send the iSCSI login request to the iSCSI target according to
the current login stage.
@param Conn[in] The connection in the iSCSI login phase.
@param[in] Conn The connection in the iSCSI login phase.
@retval EFI_SUCCESS The iSCSI login request PDU is built and sent on this
connection.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@retval EFI_DEVICE_ERROR Some kind of device error happened.
**/
EFI_STATUS
IScsiSendLoginReq (
@ -751,14 +721,10 @@ IScsiSendLoginReq (
/**
Receive and process the iSCSI login response.
@param Conn[in] The connection in the iSCSI login phase.
@param[in] Conn The connection in the iSCSI login phase.
@retval EFI_SUCCESS The iSCSI login response PDU is received and processed.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiReceiveLoginRsp (
@ -770,19 +736,15 @@ IScsiReceiveLoginRsp (
The DataSegmentLength and the actual size of the net buffer containing this PDU will be
updated.
@param Pdu[in] The iSCSI PDU whose data segment the key-value pair will
@param[in] Pdu The iSCSI PDU whose data segment the key-value pair will
be added to.
@param Key[in] The key name string.
@param Value[in] The value string.
@param[in] Key The key name string.
@param[in] Value The value string.
@retval EFI_SUCCESS The key-valu pair is added to the PDU's datasegment and
the correspondence length fields are updated.
@retval EFI_OUT_OF_RESOURCES There is not enough space in the PDU to add the key-value
pair.
**/
EFI_STATUS
IScsiAddKeyValuePair (
@ -794,10 +756,10 @@ IScsiAddKeyValuePair (
/**
Prepare the iSCSI login request to be sent according to the current login status.
@param Conn[in] The connection in the iSCSI login phase.
@retval The pointer to the net buffer containing the iSCSI login request built.
@param[in] Conn The connection in the iSCSI login phase.
@return The pointer to the net buffer containing the iSCSI login request built.
@retval Others Some unexpected error happened.
**/
NET_BUF *
IScsiPrepareLoginReq (
@ -807,14 +769,13 @@ IScsiPrepareLoginReq (
/**
Process the iSCSI Login Response.
@param Conn[in] The connection on which the iSCSI login response is received.
@param Pdu[in] The iSCSI login response PDU.
@param[in] Conn The connection on which the iSCSI login response is received.
@param[in] Pdu The iSCSI login response PDU.
@retval EFI_SUCCESS The iSCSI login response PDU is processed and all check are passed.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@retval EFI_MEDIA_CHANGED Target is redirected.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiProcessLoginRsp (
@ -826,19 +787,15 @@ IScsiProcessLoginRsp (
Updated the target information according the data received in the iSCSI
login response with an target redirection status.
@param Session[in] The iSCSI session.
@param Data[in] The data segment which should contain the
TargetAddress key-value list.
@param Len[in] Length of the data.
@param[in] Session The iSCSI session.
@param[in] Data The data segment which should contain the
TargetAddress key-value list.
@param[in] Len Length of the data.
@retval EFI_SUCCESS The target address is updated.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval EFI_NOT_FOUND The TargetAddress key is not found.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiUpdateTargetAddress (
@ -850,10 +807,7 @@ IScsiUpdateTargetAddress (
/**
The callback function to free the net buffer list.
@param Arg[in] The opaque parameter.
@retval None.
@param[in] Arg The opaque parameter.
**/
VOID
IScsiFreeNbufList (
@ -866,23 +820,18 @@ IScsiFreeNbufList (
net buffer. The digest check will be conducted in this function if needed and the digests
will be trimmed from the PDU buffer.
@param Conn[in] The iSCSI connection to receive data from.
@param Pdu[out] The received iSCSI pdu.
@param Context[in] The context used to describe information on the caller provided
@param[in] Conn The iSCSI connection to receive data from.
@param[out] Pdu The received iSCSI pdu.
@param[in] Context The context used to describe information on the caller provided
buffer to receive data segment of the iSCSI pdu, it's optional.
@param[in] HeaderDigest Whether there will be header digest received.
@param[in] DataDigest Whether there will be data digest.
@param[in] TimeoutEvent The timeout event, it's optional.
@param HeaderDigest[in] Whether there will be header digest received.
@param DataDigest[in] Whether there will be data digest.
@param TimeoutEvent[in] The timeout event, it's optional.
@retval EFI_SUCCESS An iSCSI pdu is received.
@retval EFI_TIMEOUT Timeout happenend.
@retval EFI_SUCCESS An iSCSI pdu is received.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiReceivePdu (
@ -897,14 +846,12 @@ IScsiReceivePdu (
/**
Check and get the result of the prameter negotiation.
@param Conn[in] The connection in iSCSI login.
@param Pdu[in] The iSCSI response PDU containing the parameter list.
@retval EFI_SUCCESS The parmeter check is passed and negotiation is finished.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@param[in] Conn The connection in iSCSI login.
@param[in] Transit Whether need transit.
@retval EFI_SUCCESS The parmeter check is passed and negotiation is finished.
@retval EFI_PROTOCOL_ERROR Some kind of iSCSI protocol error happened.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
**/
EFI_STATUS
IScsiCheckOpParams (
@ -915,14 +862,10 @@ IScsiCheckOpParams (
/**
Fill the oprational prameters.
@param Conn[in] The connection in iSCSI login.
@param Pdu[in] The iSCSI login request PDU to fill the parameters.
@param[in] Conn The connection in iSCSI login.
@param[in] Pdu The iSCSI login request PDU to fill the parameters.
@retval EFI_SUCCESS The parmeters are filled into the iSCSI login request PDU.
@retval EFI_OUT_OF_RESOURCES There is not enough space in the PDU to hold the parameters.
**/
EFI_STATUS
IScsiFillOpParams (
@ -933,15 +876,12 @@ IScsiFillOpParams (
/**
Pad the iSCSI AHS or data segment to an integer number of 4 byte words.
@param Pdu[in] The iSCSI pdu which contains segments to pad.
@param Len[in] The length of the last semgnet in the PDU.
@param[in] Pdu The iSCSI pdu which contains segments to pad.
@param[in] Len The length of the last semgnet in the PDU.
@retval EFI_SUCCESS The segment is padded or no need to pad it.
@retval EFI_OUT_OF_RESOURCES There is not enough remaining free space to add the
padding bytes.
**/
EFI_STATUS
IScsiPadSegment (
@ -952,12 +892,11 @@ IScsiPadSegment (
/**
Build a key-value list from the data segment.
@param Data[in] The data segment containing the key-value pairs.
@param Len[in] Length of the data segment.
@retval The key-value list.
@param[in] Data The data segment containing the key-value pairs.
@param[in] Len Length of the data segment.
@return The key-value list.
@return NULL Some unexpected error happened.
**/
LIST_ENTRY *
IScsiBuildKeyValueList (
@ -969,12 +908,10 @@ IScsiBuildKeyValueList (
Get the value string by the key name from the key-value list. If found,
the key-value entry will be removed from the list.
@param KeyValueList[in] The key-value list.
@param Key[in] The key name to find.
@retval The value string.
@param[in] KeyValueList The key-value list.
@param[in] Key The key name to find.
@return The value string.
**/
CHAR8 *
IScsiGetValueByKeyFromList (
@ -985,10 +922,7 @@ IScsiGetValueByKeyFromList (
/**
Free the key-value list.
@param KeyValueList[in] The key-value list.
@retval None.
@param[in] KeyValueList The key-value list.
**/
VOID
IScsiFreeKeyValueList (
@ -998,14 +932,11 @@ IScsiFreeKeyValueList (
/**
Normalize the iSCSI name according to RFC.
@param Name[in] The iSCSI name.
@param Len[in] length of the iSCSI name.
@param[in] Name The iSCSI name.
@param[in] Len length of the iSCSI name.
@retval EFI_SUCCESS The iSCSI name is valid and normalized.
@retval EFI_PROTOCOL_ERROR The iSCSI name is mal-formatted or not in the IQN format.
**/
EFI_STATUS
IScsiNormalizeName (
@ -1016,20 +947,17 @@ IScsiNormalizeName (
/**
Execute the SCSI command issued through the EXT SCSI PASS THRU protocol.
@param PassThru[in] The EXT SCSI PASS THRU protocol.
@param Target[in] The target ID.
@param Lun[in] The LUN.
@param Packet[in][out] The request packet containing IO request, SCSI command
buffer and buffers to read/write.
@retval EFI_SUCCES The SCSI command is executed and the result is updated to
the Packet.
@retval EFI_DEVICE_ERROR Some unexpected error happened.
@param[in] PassThru The EXT SCSI PASS THRU protocol.
@param[in] Target The target ID.
@param[in] Lun The LUN.
@param[in, out] Packet The request packet containing IO request, SCSI command
buffer and buffers to read/write.
@retval EFI_SUCCES The SCSI command is executed and the result is updated to
the Packet.
@retval EFI_DEVICE_ERROR Some unexpected error happened.
@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
@retval Others Some unexpected error happened.
**/
EFI_STATUS
IScsiExecuteScsiCommand (
@ -1042,12 +970,10 @@ IScsiExecuteScsiCommand (
/**
Reinstate the session on some error.
@param Private[in] The iSCSI driver data.
@param[in] Private The iSCSI driver data.
@retval EFI_SUCCES The session is reinstated from some error.
@retval other Reinstatement failed.
@retval Other Reinstatement failed.
**/
EFI_STATUS
IScsiSessionReinstatement (
@ -1057,12 +983,8 @@ IScsiSessionReinstatement (
/**
Initialize some session parameters before login.
@param Session[in] The iSCSI session.
@param Recovery[in] Whether the request is from a fresh new start or recovery.
@retval None.
@param[in] Session The iSCSI session.
@param[in] Recovery Whether the request is from a fresh new start or recovery.
**/
VOID
IScsiSessionInit (
@ -1074,10 +996,9 @@ IScsiSessionInit (
Abort the iSCSI session, that is, reset all the connection and free the
resources.
@param Session[in] The iSCSI session.
@param[in] Session The iSCSI session.
@retval EFI_SUCCES The session is aborted.
**/
EFI_STATUS
IScsiSessionAbort (