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android / device / linaro / bootloader / edk2 / 0b2f06b / . / MdePkg / Library / UefiScsiLib / UefiScsiLib.c
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/** @file
UEFI SCSI Library implementation
Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
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.
**/
#include <Uefi.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/UefiScsiLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <IndustryStandard/Scsi.h>
//
// Scsi Command Length
//
#define EFI_SCSI_OP_LENGTH_SIX 0x6
#define EFI_SCSI_OP_LENGTH_TEN 0xa
#define EFI_SCSI_OP_LENGTH_SIXTEEN 0x10
//
// The context structure used when non-blocking SCSI read/write operation
// completes.
//
typedef struct {
///
/// The SCSI request packet to send to the SCSI controller specified by
/// the device handle.
///
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
///
/// The length of the output sense data.
///
UINT8 *SenseDataLength;
///
/// The status of the SCSI host adapter.
///
UINT8 *HostAdapterStatus;
///
/// The status of the target SCSI device.
///
UINT8 *TargetStatus;
///
/// The length of the data buffer for the SCSI read/write command.
///
UINT32 *DataLength;
///
/// The caller event to be signaled when the SCSI read/write command
/// completes.
///
EFI_EVENT CallerEvent;
} EFI_SCSI_LIB_ASYNC_CONTEXT;
/**
Execute Test Unit Ready SCSI command on a specific SCSI target.
Executes the Test Unit Ready command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after Timeout 100 ns units.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If SenseDataLength is non-zero and SenseData is not NULL, SenseData must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
@param[in] ScsiIo A pointer to the SCSI I/O Protocol instance
for the specific SCSI target.
@param[in] Timeout The timeout in 100 ns units to use for the execution
of this SCSI Request Packet. A Timeout value of
zero means that this function will wait indefinitely
for the SCSI Request Packet to execute. If Timeout
is greater than zero, then this function will return
EFI_TIMEOUT if the time required to execute the SCSI
Request Packet is greater than Timeout.
@param[in, out] SenseData A pointer to sense data that was generated by
the execution of the SCSI Request Packet. This
buffer must be allocated by the caller.
If SenseDataLength is 0, then this parameter is
optional and may be NULL.
@param[in, out] SenseDataLength On input, a pointer to the length in bytes of
the SenseData buffer. On output, a pointer to
the number of bytes written to the SenseData buffer.
@param[out] HostAdapterStatus The status of the SCSI Host Controller that produces
the SCSI bus containing the SCSI target specified by
ScsiIo when the SCSI Request Packet was executed.
See the EFI SCSI I/O Protocol in the UEFI Specification
for details on the possible return values.
@param[out] TargetStatus The status returned by the SCSI target specified
by ScsiIo when the SCSI Request Packet was executed
on the SCSI Host Controller. See the EFI SCSI I/O
Protocol in the UEFI Specification for details on
the possible return values.
@retval EFI_SUCCESS The command was executed successfully.
See HostAdapterStatus, TargetStatus, SenseDataLength,
and SenseData in that order for additional status
information.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because
there are too many SCSI Command Packets already
queued. The SCSI Request Packet was not sent, so
no additional status information is available.
The caller may retry again later.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send
SCSI Request Packet. See HostAdapterStatus,
TargetStatus, SenseDataLength, and SenseData in that
order for additional status information.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet
is not supported by the SCSI initiator(i.e., SCSI
Host Controller). 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. See HostAdapterStatus, TargetStatus,
SenseDataLength, and SenseData in that order for
additional status information.
@retval EFI_INVALID_PARAMETER The contents of the SCSI Request Packet are invalid.
**/
EFI_STATUS
EFIAPI
ScsiTestUnitReadyCommand (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_SIX];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_SIX);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = NULL;
CommandPacket.InTransferLength= 0;
CommandPacket.OutDataBuffer = NULL;
CommandPacket.OutTransferLength= 0;
CommandPacket.SenseData = SenseData;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Test Unit Ready Command
//
Cdb[0] = EFI_SCSI_OP_TEST_UNIT_READY;
CommandPacket.CdbLength = (UINT8) EFI_SCSI_OP_LENGTH_SIX;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
return Status;
}
/**
Execute Inquiry SCSI command on a specific SCSI target.
Executes the Inquiry command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after Timeout 100 ns units.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If InquiryDataLength is NULL, then ASSERT().
If SenseDataLength is non-zero and SenseData is not NULL, SenseData must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
If InquiryDataLength is non-zero and InquiryDataBuffer is not NULL, InquiryDataBuffer
must meet buffer alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
EFI_INVALID_PARAMETER gets returned.
@param[in] ScsiIo A pointer to the SCSI I/O Protocol instance
for the specific SCSI target.
@param[in] Timeout The timeout in 100 ns units to use for the
execution of this SCSI Request Packet. A Timeout
value of zero means that this function will wait
indefinitely for the SCSI Request Packet to execute.
If Timeout is greater than zero, then this function
will return EFI_TIMEOUT if the time required to
execute the SCSI Request Packet is greater than Timeout.
@param[in, out] SenseData A pointer to sense data that was generated
by the execution of the SCSI Request Packet.
This buffer must be allocated by the caller.
If SenseDataLength is 0, then this parameter
is optional and may be NULL.
@param[in, out] SenseDataLength On input, the length in bytes of the SenseData buffer.
On output, the number of bytes written to the SenseData buffer.
@param[out] HostAdapterStatus The status of the SCSI Host Controller that
produces the SCSI bus containing the SCSI
target specified by ScsiIo when the SCSI
Request Packet was executed. See the EFI
SCSI I/O Protocol in the UEFI Specification
for details on the possible return values.
@param[out] TargetStatus The status returned by the SCSI target specified
by ScsiIo when the SCSI Request Packet was
executed on the SCSI Host Controller.
See the EFI SCSI I/O Protocol in the UEFI
Specification for details on the possible
return values.
@param[in, out] InquiryDataBuffer A pointer to inquiry data that was generated
by the execution of the SCSI Request Packet.
This buffer must be allocated by the caller.
If InquiryDataLength is 0, then this parameter
is optional and may be NULL.
@param[in, out] InquiryDataLength On input, a pointer to the length in bytes
of the InquiryDataBuffer buffer.
On output, a pointer to the number of bytes
written to the InquiryDataBuffer buffer.
@param[in] EnableVitalProductData If TRUE, then the supported vital product
data for the PageCode is returned in InquiryDataBuffer.
If FALSE, then the standard inquiry data is
returned in InquiryDataBuffer and PageCode is ignored.
@param[in] PageCode The page code of the vital product data.
It's ignored if EnableVitalProductData is FALSE.
@retval EFI_SUCCESS The command executed successfully. See HostAdapterStatus,
TargetStatus, SenseDataLength, and SenseData in that order
for additional status information.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire
InquiryDataBuffer could not be transferred. The actual
number of bytes transferred is returned in InquiryDataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there
are too many SCSI Command Packets already queued.
The SCSI Request Packet was not sent, so no additional
status information is available. The caller may retry again later.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI
Request Packet. See HostAdapterStatus, TargetStatus,
SenseDataLength, and SenseData in that order for additional
status information.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not
supported by the SCSI initiator(i.e., SCSI Host Controller).
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. See HostAdapterStatus, TargetStatus,
SenseDataLength, and SenseData in that order for
additional status information.
@retval EFI_INVALID_PARAMETER The contents of the SCSI Request Packet are invalid.
**/
EFI_STATUS
EFIAPI
ScsiInquiryCommandEx (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *InquiryDataBuffer, OPTIONAL
IN OUT UINT32 *InquiryDataLength,
IN BOOLEAN EnableVitalProductData,
IN UINT8 PageCode
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_SIX];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (InquiryDataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_SIX);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = InquiryDataBuffer;
CommandPacket.InTransferLength= *InquiryDataLength;
CommandPacket.SenseData = SenseData;
CommandPacket.SenseDataLength = *SenseDataLength;
CommandPacket.Cdb = Cdb;
Cdb[0] = EFI_SCSI_OP_INQUIRY;
if (EnableVitalProductData) {
Cdb[1] |= 0x01;
Cdb[2] = PageCode;
}
if (*InquiryDataLength > 0xff) {
*InquiryDataLength = 0xff;
}
Cdb[4] = (UINT8) (*InquiryDataLength);
CommandPacket.CdbLength = (UINT8) EFI_SCSI_OP_LENGTH_SIX;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*InquiryDataLength = CommandPacket.InTransferLength;
return Status;
}
/**
Execute Inquiry SCSI command on a specific SCSI target.
Executes the Inquiry command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after Timeout 100 ns units.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If InquiryDataLength is NULL, then ASSERT().
If SenseDataLength is non-zero and SenseData is not NULL, SenseData must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
If InquiryDataLength is non-zero and InquiryDataBuffer is not NULL, InquiryDataBuffer
must meet buffer alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
EFI_INVALID_PARAMETER gets returned.
@param[in] ScsiIo A pointer to the SCSI I/O Protocol instance
for the specific SCSI target.
@param[in] Timeout The timeout in 100 ns units to use for the
execution of this SCSI Request Packet. A Timeout
value of zero means that this function will wait
indefinitely for the SCSI Request Packet to execute.
If Timeout is greater than zero, then this function
will return EFI_TIMEOUT if the time required to
execute the SCSI Request Packet is greater than Timeout.
@param[in, out] SenseData A pointer to sense data that was generated
by the execution of the SCSI Request Packet.
This buffer must be allocated by the caller.
If SenseDataLength is 0, then this parameter
is optional and may be NULL.
@param[in, out] SenseDataLength On input, the length in bytes of the SenseData buffer.
On output, the number of bytes written to the SenseData buffer.
@param[out] HostAdapterStatus The status of the SCSI Host Controller that
produces the SCSI bus containing the SCSI
target specified by ScsiIo when the SCSI
Request Packet was executed. See the EFI
SCSI I/O Protocol in the UEFI Specification
for details on the possible return values.
@param[out] TargetStatus The status returned by the SCSI target specified
by ScsiIo when the SCSI Request Packet was
executed on the SCSI Host Controller.
See the EFI SCSI I/O Protocol in the UEFI
Specification for details on the possible
return values.
@param[in, out] InquiryDataBuffer A pointer to inquiry data that was generated
by the execution of the SCSI Request Packet.
This buffer must be allocated by the caller.
If InquiryDataLength is 0, then this parameter
is optional and may be NULL.
@param[in, out] InquiryDataLength On input, a pointer to the length in bytes
of the InquiryDataBuffer buffer.
On output, a pointer to the number of bytes
written to the InquiryDataBuffer buffer.
@param[in] EnableVitalProductData If TRUE, then the supported vital product
data is returned in InquiryDataBuffer.
If FALSE, then the standard inquiry data is
returned in InquiryDataBuffer.
@retval EFI_SUCCESS The command was executed successfully. See HostAdapterStatus,
TargetStatus, SenseDataLength, and SenseData in that order
for additional status information.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire
InquiryDataBuffer could not be transferred. The actual
number of bytes transferred is returned in InquiryDataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there
are too many SCSI Command Packets already queued.
The SCSI Request Packet was not sent, so no additional
status information is available. The caller may retry again later.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI
Request Packet. See HostAdapterStatus, TargetStatus,
SenseDataLength, and SenseData in that order for additional
status information.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not
supported by the SCSI initiator(i.e., SCSI Host Controller).
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. See HostAdapterStatus, TargetStatus,
SenseDataLength, and SenseData in that order for
additional status information.
@retval EFI_INVALID_PARAMETER The contents of the SCSI Request Packet are invalid.
**/
EFI_STATUS
EFIAPI
ScsiInquiryCommand (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *InquiryDataBuffer, OPTIONAL
IN OUT UINT32 *InquiryDataLength,
IN BOOLEAN EnableVitalProductData
)
{
return ScsiInquiryCommandEx (
ScsiIo,
Timeout,
SenseData,
SenseDataLength,
HostAdapterStatus,
TargetStatus,
InquiryDataBuffer,
InquiryDataLength,
EnableVitalProductData,
0
);
}
/**
Execute Mode Sense(10) SCSI command on a specific SCSI target.
Executes the SCSI Mode Sense(10) command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout
after Timeout 100 ns units. The DBDField, PageControl, and PageCode parameters
are used to construct the CDB for this SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
If SenseDataLength is non-zero and SenseData is not NULL, SenseData must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
If DataLength is non-zero and DataBuffer is not NULL, DataBuffer must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
@param[in] ScsiIo A pointer to the SCSI I/O Protocol instance
for the specific SCSI target.
@param[in] Timeout The timeout in 100 ns units to use for the
execution of this SCSI Request Packet. A Timeout
value of zero means that this function will wait
indefinitely for the SCSI Request Packet to execute.
If Timeout is greater than zero, then this function
will return EFI_TIMEOUT if the time required to
execute the SCSI Request Packet is greater than Timeout.
@param[in, out] SenseData A pointer to sense data that was generated
by the execution of the SCSI Request Packet.
This buffer must be allocated by the caller.
If SenseDataLength is 0, then this parameter
is optional and may be NULL.
@param[in, out] SenseDataLength On input, the length in bytes of the SenseData buffer.
On output, the number of bytes written to the SenseData buffer.
@param[out] HostAdapterStatus The status of the SCSI Host Controller that
produces the SCSI bus containing the SCSI target
specified by ScsiIo when the SCSI Request Packet
was executed. See the EFI SCSI I/O Protocol in the
UEFI Specification for details on the possible
return values.
@param[out] TargetStatus The status returned by the SCSI target specified
by ScsiIo when the SCSI Request Packet was executed
on the SCSI Host Controller. See the EFI SCSI
I/O Protocol in the UEFI Specification for details
on the possible return values.
@param[in, out] DataBuffer A pointer to data that was generated by the
execution of the SCSI Request Packet. This
buffer must be allocated by the caller. If
DataLength is 0, then this parameter is optional
and may be NULL.
@param[in, out] DataLength On input, a pointer to the length in bytes of
the DataBuffer buffer. On output, a pointer
to the number of bytes written to the DataBuffer
buffer.
@param[in] DBDField Specifies the DBD field of the CDB for this SCSI Command.
@param[in] PageControl Specifies the PC field of the CDB for this SCSI Command.
@param[in] PageCode Specifies the Page Control field of the CDB for this SCSI Command.
@retval EFI_SUCCESS The command was executed successfully.
See HostAdapterStatus, TargetStatus, SenseDataLength,
and SenseData in that order for additional status information.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the
entire DataBuffer could not be transferred.
The actual number of bytes transferred is returned
in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because
there are too many SCSI Command Packets already queued.
The SCSI Request Packet was not sent, so no additional
status information is available. The caller may retry
again later.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send
SCSI Request Packet. See HostAdapterStatus, TargetStatus,
SenseDataLength, and SenseData in that order for
additional status information.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet
is not supported by the SCSI initiator(i.e., SCSI
Host Controller). 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. See HostAdapterStatus,
TargetStatus, SenseDataLength, and SenseData in that
order for additional status information.
@retval EFI_INVALID_PARAMETER The contents of the SCSI Request Packet are invalid.
**/
EFI_STATUS
EFIAPI
ScsiModeSense10Command (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN UINT8 DBDField, OPTIONAL
IN UINT8 PageControl,
IN UINT8 PageCode
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_TEN];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.InTransferLength= *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Mode Sense (10) Command
//
Cdb[0] = EFI_SCSI_OP_MODE_SEN10;
//
// DBDField is in Cdb[1] bit3 of (bit7..0)
//
Cdb[1] = (UINT8) ((DBDField << 3) & 0x08);
//
// PageControl is in Cdb[2] bit7..6, PageCode is in Cdb[2] bit5..0
//
Cdb[2] = (UINT8) (((PageControl << 6) & 0xc0) | (PageCode & 0x3f));
Cdb[7] = (UINT8) (*DataLength >> 8);
Cdb[8] = (UINT8) (*DataLength);
CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_TEN;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.InTransferLength;
return Status;
}
/**
Execute Request Sense SCSI command on a specific SCSI target.
Executes the Request Sense command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after Timeout 100 ns units.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If SenseDataLength is non-zero and SenseData is not NULL, SenseData must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
@param[in] ScsiIo A pointer to SCSI IO protocol.
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are
too many SCSI Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported by
the SCSI initiator(i.e., SCSI Host Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
@retval EFI_INVALID_PARAMETER The contents of the SCSI Request Packet are invalid.
**/
EFI_STATUS
EFIAPI
ScsiRequestSenseCommand (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_SIX];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_SIX);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = SenseData;
CommandPacket.SenseData = NULL;
CommandPacket.InTransferLength= *SenseDataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Request Sense Command
//
Cdb[0] = EFI_SCSI_OP_REQUEST_SENSE;
Cdb[4] = (UINT8) (*SenseDataLength);
CommandPacket.CdbLength = (UINT8) EFI_SCSI_OP_LENGTH_SIX;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
CommandPacket.SenseDataLength = 0;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = (UINT8) CommandPacket.InTransferLength;
return Status;
}
/**
Execute Read Capacity SCSI command on a specific SCSI target.
Executes the SCSI Read Capacity command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after
Timeout 100 ns units. The Pmi parameter is used to construct the CDB for this SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
If SenseDataLength is non-zero and SenseData is not NULL, SenseData must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
If DataLength is non-zero and DataBuffer is not NULL, DataBuffer must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
@param[in] ScsiIo A pointer to SCSI IO protocol.
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer A pointer to a data buffer.
@param[in, out] DataLength The length of data buffer.
@param[in] Pmi Partial medium indicator.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire
DataBuffer could not be transferred. The actual
number of bytes transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because
there are too many SCSI Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet
is not supported by the SCSI initiator(i.e., SCSI Host Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
@retval EFI_INVALID_PARAMETER The contents of the SCSI Request Packet are invalid.
**/
EFI_STATUS
EFIAPI
ScsiReadCapacityCommand (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN BOOLEAN Pmi
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_TEN];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.InTransferLength= *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Read Capacity Command
//
Cdb[0] = EFI_SCSI_OP_READ_CAPACITY;
if (!Pmi) {
//
// Partial medium indicator,if Pmi is FALSE, the Cdb.2 ~ Cdb.5 MUST BE ZERO.
//
ZeroMem ((Cdb + 2), 4);
} else {
Cdb[8] |= 0x01;
}
CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_TEN;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.InTransferLength;
return Status;
}
/**
Execute Read Capacity SCSI 16 command on a specific SCSI target.
Executes the SCSI Read Capacity 16 command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after
Timeout 100 ns units. The Pmi parameter is used to construct the CDB for this SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
If SenseDataLength is non-zero and SenseData is not NULL, SenseData must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
If DataLength is non-zero and DataBuffer is not NULL, DataBuffer must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
@param[in] ScsiIo A pointer to SCSI IO protocol.
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer A pointer to a data buffer.
@param[in, out] DataLength The length of data buffer.
@param[in] Pmi Partial medium indicator.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire
DataBuffer could not be transferred. The actual
number of bytes transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because
there are too many SCSI Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet
is not supported by the SCSI initiator(i.e., SCSI Host Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
@retval EFI_INVALID_PARAMETER The contents of the SCSI Request Packet are invalid.
**/
EFI_STATUS
EFIAPI
ScsiReadCapacity16Command (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN BOOLEAN Pmi
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
EFI_STATUS Status;
UINT8 Cdb[16];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, 16);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.InTransferLength= *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Read Capacity Command
//
Cdb[0] = EFI_SCSI_OP_READ_CAPACITY16;
Cdb[1] = 0x10;
if (!Pmi) {
//
// Partial medium indicator,if Pmi is FALSE, the Cdb.2 ~ Cdb.9 MUST BE ZERO.
//
ZeroMem ((Cdb + 2), 8);
} else {
Cdb[14] |= 0x01;
}
Cdb[13] = 0x20;
CommandPacket.CdbLength = 16;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.InTransferLength;
return Status;
}
/**
Execute Read(10) SCSI command on a specific SCSI target.
Executes the SCSI Read(10) command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout
after Timeout 100 ns units. The StartLba and SectorSize parameters are used to
construct the CDB for this SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
If SenseDataLength is non-zero and SenseData is not NULL, SenseData must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
If DataLength is non-zero and DataBuffer is not NULL, DataBuffer must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
@param[in] ScsiIo A pointer to SCSI IO protocol.
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer Read 10 command data.
@param[in, out] DataLength The length of data buffer.
@param[in] StartLba The start address of LBA.
@param[in] SectorSize The number of contiguous logical blocks of data that shall be transferred.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire DataBuffer could
not be transferred. The actual number of bytes transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many
SCSI Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported by
the SCSI initiator(i.e., SCSI Host Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
@retval EFI_INVALID_PARAMETER The contents of the SCSI Request Packet are invalid.
**/
EFI_STATUS
EFIAPI
ScsiRead10Command (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN UINT32 StartLba,
IN UINT32 SectorSize
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_TEN];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.InTransferLength= *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Read (10) Command
//
Cdb[0] = EFI_SCSI_OP_READ10;
WriteUnaligned32 ((UINT32 *)&Cdb[2], SwapBytes32 (StartLba));
WriteUnaligned16 ((UINT16 *)&Cdb[7], SwapBytes16 ((UINT16) SectorSize));
CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_TEN;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.InTransferLength;
return Status;
}
/**
Execute Write(10) SCSI command on a specific SCSI target.
Executes the SCSI Write(10) command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after
Timeout 100 ns units. The StartLba and SectorSize parameters are used to construct
the CDB for this SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
If SenseDataLength is non-zero and SenseData is not NULL, SenseData must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
If DataLength is non-zero and DataBuffer is not NULL, DataBuffer must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
@param[in] ScsiIo SCSI IO Protocol to use
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer A pointer to a data buffer.
@param[in, out] DataLength The length of data buffer.
@param[in] StartLba The start address of LBA.
@param[in] SectorSize The number of contiguous logical blocks of data that shall be transferred.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire DataBuffer could
not be transferred. The actual number of bytes transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many
SCSI Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported by
the SCSI initiator(i.e., SCSI Host Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
@retval EFI_INVALID_PARAMETER The contents of the SCSI Request Packet are invalid.
**/
EFI_STATUS
EFIAPI
ScsiWrite10Command (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN UINT32 StartLba,
IN UINT32 SectorSize
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_TEN];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_TEN);
CommandPacket.Timeout = Timeout;
CommandPacket.OutDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.OutTransferLength= *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Write (10) Command
//
Cdb[0] = EFI_SCSI_OP_WRITE10;
WriteUnaligned32 ((UINT32 *)&Cdb[2], SwapBytes32 (StartLba));
WriteUnaligned16 ((UINT16 *)&Cdb[7], SwapBytes16 ((UINT16) SectorSize));
CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_TEN;
CommandPacket.DataDirection = EFI_SCSI_DATA_OUT;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.OutTransferLength;
return Status;
}
/**
Execute Read(16) SCSI command on a specific SCSI target.
Executes the SCSI Read(16) command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout
after Timeout 100 ns units. The StartLba and SectorSize parameters are used to
construct the CDB for this SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
If SenseDataLength is non-zero and SenseData is not NULL, SenseData must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
If DataLength is non-zero and DataBuffer is not NULL, DataBuffer must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
@param[in] ScsiIo A pointer to SCSI IO protocol.
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer Read 16 command data.
@param[in, out] DataLength The length of data buffer.
@param[in] StartLba The start address of LBA.
@param[in] SectorSize The number of contiguous logical blocks of data that shall be transferred.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire DataBuffer could
not be transferred. The actual number of bytes transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many
SCSI Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported by
the SCSI initiator(i.e., SCSI Host Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
@retval EFI_INVALID_PARAMETER The contents of the SCSI Request Packet are invalid.
**/
EFI_STATUS
EFIAPI
ScsiRead16Command (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN UINT64 StartLba,
IN UINT32 SectorSize
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_SIXTEEN];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_SIXTEEN);
CommandPacket.Timeout = Timeout;
CommandPacket.InDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.InTransferLength = *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Read (16) Command
//
Cdb[0] = EFI_SCSI_OP_READ16;
WriteUnaligned64 ((UINT64 *)&Cdb[2], SwapBytes64 (StartLba));
WriteUnaligned32 ((UINT32 *)&Cdb[10], SwapBytes32 (SectorSize));
CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_SIXTEEN;
CommandPacket.DataDirection = EFI_SCSI_DATA_IN;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.InTransferLength;
return Status;
}
/**
Execute Write(16) SCSI command on a specific SCSI target.
Executes the SCSI Write(16) command on the SCSI target specified by ScsiIo.
If Timeout is zero, then this function waits indefinitely for the command to complete.
If Timeout is greater than zero, then the command is executed and will timeout after
Timeout 100 ns units. The StartLba and SectorSize parameters are used to construct
the CDB for this SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
If SenseDataLength is non-zero and SenseData is not NULL, SenseData must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
If DataLength is non-zero and DataBuffer is not NULL, DataBuffer must meet buffer
alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise EFI_INVALID_PARAMETER
gets returned.
@param[in] ScsiIo SCSI IO Protocol to use
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer A pointer to a data buffer.
@param[in, out] DataLength The length of data buffer.
@param[in] StartLba The start address of LBA.
@param[in] SectorSize The number of contiguous logical blocks of data that shall be transferred.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed, but the entire DataBuffer could
not be transferred. The actual number of bytes transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many
SCSI Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported by
the SCSI initiator(i.e., SCSI Host Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
@retval EFI_INVALID_PARAMETER The contents of the SCSI Request Packet are invalid.
**/
EFI_STATUS
EFIAPI
ScsiWrite16Command (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN UINT64 StartLba,
IN UINT32 SectorSize
)
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET CommandPacket;
EFI_STATUS Status;
UINT8 Cdb[EFI_SCSI_OP_LENGTH_SIXTEEN];
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
ZeroMem (&CommandPacket, sizeof (EFI_SCSI_IO_SCSI_REQUEST_PACKET));
ZeroMem (Cdb, EFI_SCSI_OP_LENGTH_SIXTEEN);
CommandPacket.Timeout = Timeout;
CommandPacket.OutDataBuffer = DataBuffer;
CommandPacket.SenseData = SenseData;
CommandPacket.OutTransferLength = *DataLength;
CommandPacket.Cdb = Cdb;
//
// Fill Cdb for Write (16) Command
//
Cdb[0] = EFI_SCSI_OP_WRITE16;
WriteUnaligned64 ((UINT64 *)&Cdb[2], SwapBytes64 (StartLba));
WriteUnaligned32 ((UINT32 *)&Cdb[10], SwapBytes32 (SectorSize));
CommandPacket.CdbLength = EFI_SCSI_OP_LENGTH_SIXTEEN;
CommandPacket.DataDirection = EFI_SCSI_DATA_OUT;
CommandPacket.SenseDataLength = *SenseDataLength;
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, &CommandPacket, NULL);
*HostAdapterStatus = CommandPacket.HostAdapterStatus;
*TargetStatus = CommandPacket.TargetStatus;
*SenseDataLength = CommandPacket.SenseDataLength;
*DataLength = CommandPacket.OutTransferLength;
return Status;
}
/**
Internal helper notify function in which update the result of the
non-blocking SCSI Read/Write commands and signal caller event.
@param Event The instance of EFI_EVENT.
@param Context The parameter passed in.
**/
VOID
EFIAPI
ScsiLibNotify (
IN EFI_EVENT Event,
IN VOID *Context
)
{
EFI_SCSI_LIB_ASYNC_CONTEXT *LibContext;
EFI_SCSI_IO_SCSI_REQUEST_PACKET *CommandPacket;
EFI_EVENT CallerEvent;
LibContext = (EFI_SCSI_LIB_ASYNC_CONTEXT *) Context;
CommandPacket = &LibContext->CommandPacket;
CallerEvent = LibContext->CallerEvent;
//
// Update SCSI Read/Write operation results
//
*LibContext->SenseDataLength = CommandPacket->SenseDataLength;
*LibContext->HostAdapterStatus = CommandPacket->HostAdapterStatus;
*LibContext->TargetStatus = CommandPacket->TargetStatus;
if (CommandPacket->InDataBuffer != NULL) {
*LibContext->DataLength = CommandPacket->InTransferLength;
} else {
*LibContext->DataLength = CommandPacket->OutTransferLength;
}
if (CommandPacket->Cdb != NULL) {
FreePool (CommandPacket->Cdb);
}
FreePool (Context);
gBS->CloseEvent (Event);
gBS->SignalEvent (CallerEvent);
}
/**
Execute blocking/non-blocking Read(10) SCSI command on a specific SCSI
target.
Executes the SCSI Read(10) command on the SCSI target specified by ScsiIo.
When Event is NULL, blocking command will be executed. Otherwise non-blocking
command will be executed.
For blocking I/O, if Timeout is zero, this function will wait indefinitely
for the command to complete. If Timeout is greater than zero, then the
command is executed and will timeout after Timeout 100 ns units.
For non-blocking I/O, if Timeout is zero, Event will be signaled only after
the command to completes. If Timeout is greater than zero, Event will also be
signaled after Timeout 100 ns units.
The StartLba and SectorSize parameters are used to construct the CDB for this
SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
If SenseDataLength is non-zero and SenseData is not NULL, SenseData must meet
buffer alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
EFI_INVALID_PARAMETER gets returned.
If DataLength is non-zero and DataBuffer is not NULL, DataBuffer must meet
buffer alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
EFI_INVALID_PARAMETER gets returned.
@param[in] ScsiIo A pointer to SCSI IO protocol.
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer Read 16 command data.
@param[in, out] DataLength The length of data buffer.
@param[in] StartLba The start address of LBA.
@param[in] SectorSize The number of contiguous logical blocks
of data that shall be transferred.
@param[in] Event If the SCSI target does not support
non-blocking I/O, 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 non-blocking I/O
is performed, and Event will be signaled
when the SCSI Read(10) command
completes.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed,
but the entire DataBuffer could not be
transferred. The actual number of bytes
transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be
sent because there are too many SCSI
Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting
to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI
Request Packet is not supported by the
SCSI initiator(i.e., SCSI Host
Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the
SCSI Request Packet to execute.
@retval EFI_INVALID_PARAMETER The contents of the SCSI Request Packet
are invalid.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due
to a lack of resources.
**/
EFI_STATUS
EFIAPI
ScsiRead10CommandEx (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN UINT32 StartLba,
IN UINT32 SectorSize,
IN EFI_EVENT Event OPTIONAL
)
{
EFI_SCSI_LIB_ASYNC_CONTEXT *Context;
EFI_SCSI_IO_SCSI_REQUEST_PACKET *CommandPacket;
EFI_STATUS Status;
UINT8 *Cdb;
EFI_EVENT SelfEvent;
if (Event == NULL) {
return ScsiRead10Command (
ScsiIo,
Timeout,
SenseData,
SenseDataLength,
HostAdapterStatus,
TargetStatus,
DataBuffer,
DataLength,
StartLba,
SectorSize
);
}
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
Context = AllocateZeroPool (sizeof (EFI_SCSI_LIB_ASYNC_CONTEXT));
if (Context == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Cdb = AllocateZeroPool (EFI_SCSI_OP_LENGTH_TEN);
if (Cdb == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ErrorExit;
}
Context->SenseDataLength = SenseDataLength;
Context->HostAdapterStatus = HostAdapterStatus;
Context->TargetStatus = TargetStatus;
Context->CallerEvent = Event;
CommandPacket = &Context->CommandPacket;
CommandPacket->Timeout = Timeout;
CommandPacket->InDataBuffer = DataBuffer;
CommandPacket->SenseData = SenseData;
CommandPacket->InTransferLength = *DataLength;
CommandPacket->Cdb = Cdb;
//
// Fill Cdb for Read (10) Command
//
Cdb[0] = EFI_SCSI_OP_READ10;
WriteUnaligned32 ((UINT32 *)&Cdb[2], SwapBytes32 (StartLba));
WriteUnaligned16 ((UINT16 *)&Cdb[7], SwapBytes16 ((UINT16) SectorSize));
CommandPacket->CdbLength = EFI_SCSI_OP_LENGTH_TEN;
CommandPacket->DataDirection = EFI_SCSI_DATA_IN;
CommandPacket->SenseDataLength = *SenseDataLength;
//
// Create Event
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
ScsiLibNotify,
Context,
&SelfEvent
);
if (EFI_ERROR(Status)) {
goto ErrorExit;
}
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, CommandPacket, SelfEvent);
if (EFI_ERROR(Status)) {
//
// Since ScsiLibNotify() will not be signaled if ExecuteScsiCommand()
// returns with error, close the event here.
//
gBS->CloseEvent (SelfEvent);
goto ErrorExit;
} else {
return EFI_SUCCESS;
}
ErrorExit:
if (Context != NULL) {
FreePool (Context);
}
return Status;
}
/**
Execute blocking/non-blocking Write(10) SCSI command on a specific SCSI
target.
Executes the SCSI Write(10) command on the SCSI target specified by ScsiIo.
When Event is NULL, blocking command will be executed. Otherwise non-blocking
command will be executed.
For blocking I/O, if Timeout is zero, this function will wait indefinitely
for the command to complete. If Timeout is greater than zero, then the
command is executed and will timeout after Timeout 100 ns units.
For non-blocking I/O, if Timeout is zero, Event will be signaled only after
the command to completes. If Timeout is greater than zero, Event will also be
signaled after Timeout 100 ns units.
The StartLba and SectorSize parameters are used to construct the CDB for this
SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
If SenseDataLength is non-zero and SenseData is not NULL, SenseData must meet
buffer alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
EFI_INVALID_PARAMETER gets returned.
If DataLength is non-zero and DataBuffer is not NULL, DataBuffer must meet
buffer alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
EFI_INVALID_PARAMETER gets returned.
@param[in] ScsiIo SCSI IO Protocol to use
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer A pointer to a data buffer.
@param[in, out] DataLength The length of data buffer.
@param[in] StartLba The start address of LBA.
@param[in] SectorSize The number of contiguous logical blocks
of data that shall be transferred.
@param[in] Event If the SCSI target does not support
non-blocking I/O, 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 non-blocking I/O
is performed, and Event will be signaled
when the SCSI Write(10) command
completes.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed,
but the entire DataBuffer could not be
transferred. The actual number of bytes
transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be
sent because there are too many SCSI
Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting
to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI
Request Packet is not supported by the
SCSI initiator(i.e., SCSI Host
Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the
SCSI Request Packet to execute.
@retval EFI_INVALID_PARAMETER The contents of the SCSI Request Packet
are invalid.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due
to a lack of resources.
**/
EFI_STATUS
EFIAPI
ScsiWrite10CommandEx (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN UINT32 StartLba,
IN UINT32 SectorSize,
IN EFI_EVENT Event OPTIONAL
)
{
EFI_SCSI_LIB_ASYNC_CONTEXT *Context;
EFI_SCSI_IO_SCSI_REQUEST_PACKET *CommandPacket;
EFI_STATUS Status;
UINT8 *Cdb;
EFI_EVENT SelfEvent;
if (Event == NULL) {
return ScsiWrite10Command (
ScsiIo,
Timeout,
SenseData,
SenseDataLength,
HostAdapterStatus,
TargetStatus,
DataBuffer,
DataLength,
StartLba,
SectorSize
);
}
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
Context = AllocateZeroPool (sizeof (EFI_SCSI_LIB_ASYNC_CONTEXT));
if (Context == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Cdb = AllocateZeroPool (EFI_SCSI_OP_LENGTH_TEN);
if (Cdb == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ErrorExit;
}
Context->SenseDataLength = SenseDataLength;
Context->HostAdapterStatus = HostAdapterStatus;
Context->TargetStatus = TargetStatus;
Context->CallerEvent = Event;
CommandPacket = &Context->CommandPacket;
CommandPacket->Timeout = Timeout;
CommandPacket->OutDataBuffer = DataBuffer;
CommandPacket->SenseData = SenseData;
CommandPacket->OutTransferLength = *DataLength;
CommandPacket->Cdb = Cdb;
//
// Fill Cdb for Write (10) Command
//
Cdb[0] = EFI_SCSI_OP_WRITE10;
WriteUnaligned32 ((UINT32 *)&Cdb[2], SwapBytes32 (StartLba));
WriteUnaligned16 ((UINT16 *)&Cdb[7], SwapBytes16 ((UINT16) SectorSize));
CommandPacket->CdbLength = EFI_SCSI_OP_LENGTH_TEN;
CommandPacket->DataDirection = EFI_SCSI_DATA_OUT;
CommandPacket->SenseDataLength = *SenseDataLength;
//
// Create Event
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
ScsiLibNotify,
Context,
&SelfEvent
);
if (EFI_ERROR(Status)) {
goto ErrorExit;
}
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, CommandPacket, SelfEvent);
if (EFI_ERROR(Status)) {
//
// Since ScsiLibNotify() will not be signaled if ExecuteScsiCommand()
// returns with error, close the event here.
//
gBS->CloseEvent (SelfEvent);
goto ErrorExit;
} else {
return EFI_SUCCESS;
}
ErrorExit:
if (Context != NULL) {
FreePool (Context);
}
return Status;
}
/**
Execute blocking/non-blocking Read(16) SCSI command on a specific SCSI
target.
Executes the SCSI Read(16) command on the SCSI target specified by ScsiIo.
When Event is NULL, blocking command will be executed. Otherwise non-blocking
command will be executed.
For blocking I/O, if Timeout is zero, this function will wait indefinitely
for the command to complete. If Timeout is greater than zero, then the
command is executed and will timeout after Timeout 100 ns units.
For non-blocking I/O, if Timeout is zero, Event will be signaled only after
the command to completes. If Timeout is greater than zero, Event will also be
signaled after Timeout 100 ns units.
The StartLba and SectorSize parameters are used to construct the CDB for this
SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
If SenseDataLength is non-zero and SenseData is not NULL, SenseData must meet
buffer alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
EFI_INVALID_PARAMETER gets returned.
If DataLength is non-zero and DataBuffer is not NULL, DataBuffer must meet
buffer alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
EFI_INVALID_PARAMETER gets returned.
@param[in] ScsiIo A pointer to SCSI IO protocol.
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer Read 16 command data.
@param[in, out] DataLength The length of data buffer.
@param[in] StartLba The start address of LBA.
@param[in] SectorSize The number of contiguous logical blocks
of data that shall be transferred.
@param[in] Event If the SCSI target does not support
non-blocking I/O, 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 non-blocking I/O
is performed, and Event will be signaled
when the SCSI Read(16) command
completes.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed,
but the entire DataBuffer could not be
transferred. The actual number of bytes
transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be
sent because there are too many SCSI
Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting
to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI
Request Packet is not supported by the
SCSI initiator(i.e., SCSI Host
Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the
SCSI Request Packet to execute.
@retval EFI_INVALID_PARAMETER The contents of the SCSI Request Packet
are invalid.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due
to a lack of resources.
**/
EFI_STATUS
EFIAPI
ScsiRead16CommandEx (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN UINT64 StartLba,
IN UINT32 SectorSize,
IN EFI_EVENT Event OPTIONAL
)
{
EFI_SCSI_LIB_ASYNC_CONTEXT *Context;
EFI_SCSI_IO_SCSI_REQUEST_PACKET *CommandPacket;
EFI_STATUS Status;
UINT8 *Cdb;
EFI_EVENT SelfEvent;
if (Event == NULL) {
return ScsiRead16Command (
ScsiIo,
Timeout,
SenseData,
SenseDataLength,
HostAdapterStatus,
TargetStatus,
DataBuffer,
DataLength,
StartLba,
SectorSize
);
}
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
Context = AllocateZeroPool (sizeof (EFI_SCSI_LIB_ASYNC_CONTEXT));
if (Context == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Cdb = AllocateZeroPool (EFI_SCSI_OP_LENGTH_SIXTEEN);
if (Cdb == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ErrorExit;
}
Context->SenseDataLength = SenseDataLength;
Context->HostAdapterStatus = HostAdapterStatus;
Context->TargetStatus = TargetStatus;
Context->CallerEvent = Event;
CommandPacket = &Context->CommandPacket;
CommandPacket->Timeout = Timeout;
CommandPacket->InDataBuffer = DataBuffer;
CommandPacket->SenseData = SenseData;
CommandPacket->InTransferLength = *DataLength;
CommandPacket->Cdb = Cdb;
//
// Fill Cdb for Read (16) Command
//
Cdb[0] = EFI_SCSI_OP_READ16;
WriteUnaligned64 ((UINT64 *)&Cdb[2], SwapBytes64 (StartLba));
WriteUnaligned32 ((UINT32 *)&Cdb[10], SwapBytes32 (SectorSize));
CommandPacket->CdbLength = EFI_SCSI_OP_LENGTH_SIXTEEN;
CommandPacket->DataDirection = EFI_SCSI_DATA_IN;
CommandPacket->SenseDataLength = *SenseDataLength;
//
// Create Event
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
ScsiLibNotify,
Context,
&SelfEvent
);
if (EFI_ERROR(Status)) {
goto ErrorExit;
}
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, CommandPacket, SelfEvent);
if (EFI_ERROR(Status)) {
//
// Since ScsiLibNotify() will not be signaled if ExecuteScsiCommand()
// returns with error, close the event here.
//
gBS->CloseEvent (SelfEvent);
goto ErrorExit;
} else {
return EFI_SUCCESS;
}
ErrorExit:
if (Context != NULL) {
FreePool (Context);
}
return Status;
}
/**
Execute blocking/non-blocking Write(16) SCSI command on a specific SCSI
target.
Executes the SCSI Write(16) command on the SCSI target specified by ScsiIo.
When Event is NULL, blocking command will be executed. Otherwise non-blocking
command will be executed.
For blocking I/O, if Timeout is zero, this function will wait indefinitely
for the command to complete. If Timeout is greater than zero, then the
command is executed and will timeout after Timeout 100 ns units.
For non-blocking I/O, if Timeout is zero, Event will be signaled only after
the command to completes. If Timeout is greater than zero, Event will also be
signaled after Timeout 100 ns units.
The StartLba and SectorSize parameters are used to construct the CDB for this
SCSI command.
If ScsiIo is NULL, then ASSERT().
If SenseDataLength is NULL, then ASSERT().
If HostAdapterStatus is NULL, then ASSERT().
If TargetStatus is NULL, then ASSERT().
If DataLength is NULL, then ASSERT().
If SenseDataLength is non-zero and SenseData is not NULL, SenseData must meet
buffer alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
EFI_INVALID_PARAMETER gets returned.
If DataLength is non-zero and DataBuffer is not NULL, DataBuffer must meet
buffer alignment requirement defined in EFI_SCSI_IO_PROTOCOL. Otherwise
EFI_INVALID_PARAMETER gets returned.
@param[in] ScsiIo SCSI IO Protocol to use
@param[in] Timeout The length of timeout period.
@param[in, out] SenseData A pointer to output sense data.
@param[in, out] SenseDataLength The length of output sense data.
@param[out] HostAdapterStatus The status of Host Adapter.
@param[out] TargetStatus The status of the target.
@param[in, out] DataBuffer A pointer to a data buffer.
@param[in, out] DataLength The length of data buffer.
@param[in] StartLba The start address of LBA.
@param[in] SectorSize The number of contiguous logical blocks
of data that shall be transferred.
@param[in] Event If the SCSI target does not support
non-blocking I/O, 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 non-blocking I/O
is performed, and Event will be signaled
when the SCSI Write(16) command
completes.
@retval EFI_SUCCESS Command is executed successfully.
@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was executed,
but the entire DataBuffer could not be
transferred. The actual number of bytes
transferred is returned in DataLength.
@retval EFI_NOT_READY The SCSI Request Packet could not be
sent because there are too many SCSI
Command Packets already queued.
@retval EFI_DEVICE_ERROR A device error occurred while attempting
to send SCSI Request Packet.
@retval EFI_UNSUPPORTED The command described by the SCSI
Request Packet is not supported by the
SCSI initiator(i.e., SCSI Host
Controller)
@retval EFI_TIMEOUT A timeout occurred while waiting for the
SCSI Request Packet to execute.
@retval EFI_INVALID_PARAMETER The contents of the SCSI Request Packet
are invalid.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due
to a lack of resources.
**/
EFI_STATUS
EFIAPI
ScsiWrite16CommandEx (
IN EFI_SCSI_IO_PROTOCOL *ScsiIo,
IN UINT64 Timeout,
IN OUT VOID *SenseData, OPTIONAL
IN OUT UINT8 *SenseDataLength,
OUT UINT8 *HostAdapterStatus,
OUT UINT8 *TargetStatus,
IN OUT VOID *DataBuffer, OPTIONAL
IN OUT UINT32 *DataLength,
IN UINT64 StartLba,
IN UINT32 SectorSize,
IN EFI_EVENT Event OPTIONAL
)
{
EFI_SCSI_LIB_ASYNC_CONTEXT *Context;
EFI_SCSI_IO_SCSI_REQUEST_PACKET *CommandPacket;
EFI_STATUS Status;
UINT8 *Cdb;
EFI_EVENT SelfEvent;
if (Event == NULL) {
return ScsiWrite16Command (
ScsiIo,
Timeout,
SenseData,
SenseDataLength,
HostAdapterStatus,
TargetStatus,
DataBuffer,
DataLength,
StartLba,
SectorSize
);
}
ASSERT (SenseDataLength != NULL);
ASSERT (HostAdapterStatus != NULL);
ASSERT (TargetStatus != NULL);
ASSERT (DataLength != NULL);
ASSERT (ScsiIo != NULL);
Context = AllocateZeroPool (sizeof (EFI_SCSI_LIB_ASYNC_CONTEXT));
if (Context == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Cdb = AllocateZeroPool (EFI_SCSI_OP_LENGTH_SIXTEEN);
if (Cdb == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ErrorExit;
}
Context->SenseDataLength = SenseDataLength;
Context->HostAdapterStatus = HostAdapterStatus;
Context->TargetStatus = TargetStatus;
Context->CallerEvent = Event;
CommandPacket = &Context->CommandPacket;
CommandPacket->Timeout = Timeout;
CommandPacket->OutDataBuffer = DataBuffer;
CommandPacket->SenseData = SenseData;
CommandPacket->OutTransferLength = *DataLength;
CommandPacket->Cdb = Cdb;
//
// Fill Cdb for Write (16) Command
//
Cdb[0] = EFI_SCSI_OP_WRITE16;
WriteUnaligned64 ((UINT64 *)&Cdb[2], SwapBytes64 (StartLba));
WriteUnaligned32 ((UINT32 *)&Cdb[10], SwapBytes32 (SectorSize));
CommandPacket->CdbLength = EFI_SCSI_OP_LENGTH_SIXTEEN;
CommandPacket->DataDirection = EFI_SCSI_DATA_OUT;
CommandPacket->SenseDataLength = *SenseDataLength;
//
// Create Event
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
ScsiLibNotify,
Context,
&SelfEvent
);
if (EFI_ERROR(Status)) {
goto ErrorExit;
}
Status = ScsiIo->ExecuteScsiCommand (ScsiIo, CommandPacket, SelfEvent);
if (EFI_ERROR(Status)) {
//
// Since ScsiLibNotify() will not be signaled if ExecuteScsiCommand()
// returns with error, close the event here.
//
gBS->CloseEvent (SelfEvent);
goto ErrorExit;
} else {
return EFI_SUCCESS;
}
ErrorExit:
if (Context != NULL) {
FreePool (Context);
}
return Status;
}