mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-24 16:27:42 +01:00
420 lines
16 KiB
C
420 lines
16 KiB
C
/** @file
|
|
The implementation of EFI_EXT_SCSI_PASS_THRU_PROTOCOL.
|
|
|
|
Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#include "IScsiImpl.h"
|
|
|
|
EFI_EXT_SCSI_PASS_THRU_PROTOCOL gIScsiExtScsiPassThruProtocolTemplate = {
|
|
NULL,
|
|
IScsiExtScsiPassThruFunction,
|
|
IScsiExtScsiPassThruGetNextTargetLun,
|
|
IScsiExtScsiPassThruBuildDevicePath,
|
|
IScsiExtScsiPassThruGetTargetLun,
|
|
IScsiExtScsiPassThruResetChannel,
|
|
IScsiExtScsiPassThruResetTargetLun,
|
|
IScsiExtScsiPassThruGetNextTarget
|
|
};
|
|
|
|
|
|
/**
|
|
Sends a SCSI Request Packet to a SCSI device that is attached to the SCSI channel.
|
|
This function supports both blocking I/O and nonblocking I/O. The blocking I/O
|
|
functionality is required, and the nonblocking I/O functionality is optional.
|
|
|
|
@param[in] This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
|
|
@param[in] Target The Target is an array of size TARGET_MAX_BYTES and it
|
|
represents the id of the SCSI device to send the SCSI
|
|
Request Packet. Each transport driver may choose to
|
|
utilize a subset of this size to suit the needs
|
|
of transport target representation. For example, a
|
|
Fibre Channel driver may use only 8 bytes (WWN)
|
|
to represent an FC target.
|
|
@param[in] Lun The LUN of the SCSI device to send the SCSI Request Packet.
|
|
@param[in, out] Packet A pointer to the SCSI Request Packet to send to the
|
|
SCSI device specified by Target and Lun.
|
|
@param[in] Event If nonblocking I/O is not supported then Event is ignored,
|
|
and blocking I/O is performed. If Event is NULL, then
|
|
blocking I/O is performed. If Event is not NULL and non
|
|
blocking I/O is supported, then nonblocking I/O is performed,
|
|
and Event will be signaled when the SCSI Request Packet
|
|
completes.
|
|
|
|
@retval EFI_SUCCESS The SCSI Request Packet was sent by the host. For
|
|
bi-directional commands, InTransferLength bytes
|
|
were transferred from InDataBuffer.
|
|
For write and bi-directional commands, OutTransferLength
|
|
bytes were transferred by OutDataBuffer.
|
|
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was not executed.
|
|
The number of bytes that could be transferred is
|
|
returned in InTransferLength. For write and
|
|
bi-directional commands, OutTransferLength bytes
|
|
were transferred by OutDataBuffer.
|
|
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because
|
|
there are too many SCSI Request Packets already
|
|
queued. The caller may retry later.
|
|
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send
|
|
the SCSI Request Packet.
|
|
@retval EFI_INVALID_PARAMETER Target, Lun, or the contents of ScsiRequestPacket,
|
|
are invalid.
|
|
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet
|
|
is not supported by the host adapter.
|
|
This includes the case of Bi-directional SCSI
|
|
commands not supported by the implementation.
|
|
The SCSI Request Packet was not sent,
|
|
so no additional status information is available.
|
|
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI
|
|
Request Packet to execute.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiExtScsiPassThruFunction (
|
|
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
|
|
IN UINT8 *Target,
|
|
IN UINT64 Lun,
|
|
IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,
|
|
IN EFI_EVENT Event OPTIONAL
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
ISCSI_DRIVER_DATA *Private;
|
|
|
|
if (Target[0] != 0) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
if ((Packet == NULL) || (Packet->Cdb == NULL)) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
Status = IScsiExecuteScsiCommand (This, Target, Lun, Packet);
|
|
if ((Status != EFI_SUCCESS) && (Status != EFI_NOT_READY)) {
|
|
//
|
|
// Try to reinstate the session and re-execute the Scsi command.
|
|
//
|
|
Private = ISCSI_DRIVER_DATA_FROM_EXT_SCSI_PASS_THRU (This);
|
|
if (EFI_ERROR (IScsiSessionReinstatement (Private->Session))) {
|
|
return EFI_DEVICE_ERROR;
|
|
}
|
|
|
|
Status = IScsiExecuteScsiCommand (This, Target, Lun, Packet);
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
|
|
/**
|
|
Used to retrieve the list of legal Target IDs and LUNs for SCSI devices on
|
|
a SCSI channel. These can either be the list SCSI devices that are actually
|
|
present on the SCSI channel, or the list of legal Target Ids and LUNs for the
|
|
SCSI channel. Regardless, the caller of this function must probe the Target ID
|
|
and LUN returned to see if a SCSI device is actually present at that location
|
|
on the SCSI channel.
|
|
|
|
@param[in] This The EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
|
|
@param[in, out] Target On input, a pointer to the Target ID of a SCSI
|
|
device present on the SCSI channel. On output, a
|
|
pointer to the Target ID of the next SCSI device
|
|
present on a SCSI channel. An input value of
|
|
0xFFFFFFFF retrieves the Target ID of the first
|
|
SCSI device present on a SCSI channel.
|
|
@param[in, out] Lun On input, a pointer to the LUN of a SCSI device
|
|
present on the SCSI channel. On output, a pointer
|
|
to the LUN of the next SCSI device present on a
|
|
SCSI channel.
|
|
|
|
@retval EFI_SUCCESS The Target ID and Lun of the next SCSI device on
|
|
the SCSI channel was returned in Target and Lun.
|
|
@retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI
|
|
channel.
|
|
@retval EFI_INVALID_PARAMETER Target is not 0xFFFFFFFF,and Target and Lun were
|
|
not returned on a previous call to
|
|
GetNextDevice().
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiExtScsiPassThruGetNextTargetLun (
|
|
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
|
|
IN OUT UINT8 **Target,
|
|
IN OUT UINT64 *Lun
|
|
)
|
|
{
|
|
ISCSI_DRIVER_DATA *Private;
|
|
ISCSI_SESSION_CONFIG_NVDATA *ConfigNvData;
|
|
UINT8 TargetId[TARGET_MAX_BYTES];
|
|
|
|
Private = ISCSI_DRIVER_DATA_FROM_EXT_SCSI_PASS_THRU (This);
|
|
ConfigNvData = &Private->Session->ConfigData->SessionConfigData;
|
|
|
|
if ((*Target)[0] == 0 && (CompareMem (Lun, ConfigNvData->BootLun, sizeof (UINT64)) == 0)) {
|
|
//
|
|
// Only one <Target, Lun> pair per iSCSI Driver instance.
|
|
//
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
SetMem (TargetId, TARGET_MAX_BYTES, 0xFF);
|
|
if (CompareMem (*Target, TargetId, TARGET_MAX_BYTES) == 0) {
|
|
(*Target)[0] = 0;
|
|
CopyMem (Lun, ConfigNvData->BootLun, sizeof (UINT64));
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
|
|
/**
|
|
Allocate and build a device path node for a SCSI device on a SCSI channel.
|
|
|
|
@param[in] This Protocol instance pointer.
|
|
@param[in] Target The Target ID of the SCSI device for which a
|
|
device path node is to be allocated and built.
|
|
@param[in] Lun The LUN of the SCSI device for which a device
|
|
path node is to be allocated and built.
|
|
@param[in, out] DevicePath A pointer to a single device path node that
|
|
describes the SCSI device specified by Target and
|
|
Lun. This function is responsible for allocating
|
|
the buffer DevicePath with the boot service
|
|
AllocatePool(). It is the caller's
|
|
responsibility to free DevicePath when the caller
|
|
is finished with DevicePath.
|
|
|
|
@retval EFI_SUCCESS The device path node that describes the SCSI
|
|
device specified by Target and Lun was allocated
|
|
and returned in DevicePath.
|
|
@retval EFI_NOT_FOUND The SCSI devices specified by Target and Lun does
|
|
not exist on the SCSI channel.
|
|
@retval EFI_INVALID_PARAMETER DevicePath is NULL.
|
|
@retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate
|
|
DevicePath.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiExtScsiPassThruBuildDevicePath (
|
|
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
|
|
IN UINT8 *Target,
|
|
IN UINT64 Lun,
|
|
IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
|
|
)
|
|
{
|
|
ISCSI_DRIVER_DATA *Private;
|
|
ISCSI_SESSION *Session;
|
|
ISCSI_SESSION_CONFIG_NVDATA *ConfigNvData;
|
|
ISCSI_CHAP_AUTH_CONFIG_NVDATA *AuthConfig;
|
|
EFI_DEV_PATH *Node;
|
|
UINTN DevPathNodeLen;
|
|
|
|
if (DevicePath == NULL) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
if (Target[0] != 0) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
Private = ISCSI_DRIVER_DATA_FROM_EXT_SCSI_PASS_THRU (This);
|
|
Session = Private->Session;
|
|
ConfigNvData = &Session->ConfigData->SessionConfigData;
|
|
AuthConfig = Session->AuthData.CHAP.AuthConfig;
|
|
|
|
if (CompareMem (&Lun, ConfigNvData->BootLun, sizeof (UINT64)) != 0) {
|
|
return EFI_NOT_FOUND;
|
|
}
|
|
|
|
DevPathNodeLen = sizeof (ISCSI_DEVICE_PATH) + AsciiStrLen (ConfigNvData->TargetName) + 1;
|
|
Node = AllocateZeroPool (DevPathNodeLen);
|
|
if (Node == NULL) {
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
Node->DevPath.Type = MESSAGING_DEVICE_PATH;
|
|
Node->DevPath.SubType = MSG_ISCSI_DP;
|
|
SetDevicePathNodeLength (&Node->DevPath, DevPathNodeLen);
|
|
|
|
//
|
|
// 0 for TCP, others are reserved.
|
|
//
|
|
Node->Iscsi.NetworkProtocol = 0;
|
|
|
|
Node->Iscsi.LoginOption = 0;
|
|
|
|
switch (Session->AuthType) {
|
|
case ISCSI_AUTH_TYPE_NONE:
|
|
Node->Iscsi.LoginOption |= 0x0800;
|
|
break;
|
|
|
|
case ISCSI_AUTH_TYPE_CHAP:
|
|
//
|
|
// Bit12: 0=CHAP_BI, 1=CHAP_UNI
|
|
//
|
|
if (AuthConfig->CHAPType == ISCSI_CHAP_UNI) {
|
|
Node->Iscsi.LoginOption |= 0x1000;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
CopyMem (&Node->Iscsi.Lun, ConfigNvData->BootLun, sizeof (UINT64));
|
|
Node->Iscsi.TargetPortalGroupTag = Session->TargetPortalGroupTag;
|
|
AsciiStrCpyS ((CHAR8 *) Node + sizeof (ISCSI_DEVICE_PATH), AsciiStrLen (ConfigNvData->TargetName) + 1, ConfigNvData->TargetName);
|
|
|
|
*DevicePath = (EFI_DEVICE_PATH_PROTOCOL *) Node;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
Translate a device path node to a Target ID and LUN.
|
|
|
|
@param[in] This Protocol instance pointer.
|
|
@param[in] DevicePath A pointer to the device path node that describes
|
|
a SCSI device on the SCSI channel.
|
|
@param[out] Target A pointer to the Target ID of a SCSI device on
|
|
the SCSI channel.
|
|
@param[out] Lun A pointer to the LUN of a SCSI device on the SCSI
|
|
channel.
|
|
|
|
@retval EFI_SUCCESS DevicePath was successfully translated to a
|
|
Target ID and LUN, and they were returned in
|
|
Target and Lun.
|
|
@retval EFI_INVALID_PARAMETER DevicePath/Target/Lun is NULL.
|
|
@retval EFI_UNSUPPORTED This driver does not support the device path node
|
|
type in DevicePath.
|
|
@retval EFI_NOT_FOUND A valid translation does not exist from DevicePath
|
|
to a TargetID and LUN.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiExtScsiPassThruGetTargetLun (
|
|
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
|
|
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
|
|
OUT UINT8 **Target,
|
|
OUT UINT64 *Lun
|
|
)
|
|
{
|
|
ISCSI_DRIVER_DATA *Private;
|
|
ISCSI_SESSION_CONFIG_NVDATA *ConfigNvData;
|
|
|
|
if ((DevicePath == NULL) || (Target == NULL) || (Lun == NULL)) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
if ((DevicePath->Type != MESSAGING_DEVICE_PATH) ||
|
|
(DevicePath->SubType != MSG_ISCSI_DP) ||
|
|
(DevicePathNodeLength (DevicePath) <= sizeof (ISCSI_DEVICE_PATH))
|
|
) {
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
Private = ISCSI_DRIVER_DATA_FROM_EXT_SCSI_PASS_THRU (This);
|
|
ConfigNvData = &Private->Session->ConfigData->SessionConfigData;
|
|
|
|
SetMem (*Target, TARGET_MAX_BYTES, 0xFF);
|
|
(*Target)[0] = 0;
|
|
|
|
if (AsciiStrCmp (ConfigNvData->TargetName, (CHAR8 *) DevicePath + sizeof (ISCSI_DEVICE_PATH)) != 0) {
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
CopyMem (Lun, ConfigNvData->BootLun, sizeof (UINT64));
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
Resets a SCSI channel. This operation resets all the SCSI devices connected to
|
|
the SCSI channel.
|
|
|
|
@param[in] This Protocol instance pointer.
|
|
|
|
@retval EFI_UNSUPPORTED It is not supported.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiExtScsiPassThruResetChannel (
|
|
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This
|
|
)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
|
|
/**
|
|
Resets a SCSI device that is connected to a SCSI channel.
|
|
|
|
@param[in] This Protocol instance pointer.
|
|
@param[in] Target The Target ID of the SCSI device to reset.
|
|
@param[in] Lun The LUN of the SCSI device to reset.
|
|
|
|
@retval EFI_UNSUPPORTED It is not supported.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiExtScsiPassThruResetTargetLun (
|
|
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
|
|
IN UINT8 *Target,
|
|
IN UINT64 Lun
|
|
)
|
|
{
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
/**
|
|
Retrieve the list of legal Target IDs for SCSI devices on a SCSI channel.
|
|
|
|
@param[in] This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL
|
|
instance.
|
|
@param[in, out] Target (TARGET_MAX_BYTES) of a SCSI device present on
|
|
the SCSI channel. On output, a pointer to the
|
|
Target ID (an array of TARGET_MAX_BYTES) of the
|
|
next SCSI device present on a SCSI channel.
|
|
An input value of 0xF(all bytes in the array are 0xF)
|
|
in the Target array retrieves the Target ID of the
|
|
first SCSI device present on a SCSI channel.
|
|
|
|
@retval EFI_SUCCESS The Target ID of the next SCSI device on the SCSI
|
|
channel was returned in Target.
|
|
@retval EFI_INVALID_PARAMETER Target or Lun is NULL.
|
|
@retval EFI_TIMEOUT Target array is not all 0xF, and Target was not
|
|
returned on a previous call to GetNextTarget().
|
|
@retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
IScsiExtScsiPassThruGetNextTarget (
|
|
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
|
|
IN OUT UINT8 **Target
|
|
)
|
|
{
|
|
UINT8 TargetId[TARGET_MAX_BYTES];
|
|
|
|
SetMem (TargetId, TARGET_MAX_BYTES, 0xFF);
|
|
|
|
if (CompareMem (*Target, TargetId, TARGET_MAX_BYTES) == 0) {
|
|
(*Target)[0] = 0;
|
|
return EFI_SUCCESS;
|
|
} else if ((*Target)[0] == 0) {
|
|
return EFI_NOT_FOUND;
|
|
} else {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
}
|
|
|