tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

MdePkg UefiScsiLib: Add non-blocking support for SCSI Read/Write command 

Four new functions are added to UefiScsiLib:
ScsiRead10CommandEx
ScsiWrite10CommandEx
ScsiRead16CommandEx
ScsiWrite16CommandEx

They support both blocking and non-blocking SCSI Read/Write operation
depending on the optional parameter 'Event' passed to those APIs.

When 'Event' is NULL, these four functions will call the non-EX version
couterparts to execute blocking SCSI I/O. When 'Event' is not NULL,
non-blocking I/O operation is executed.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19214 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Hao Wu 2015-12-11 01:57:41 +00:00 committed by hwu1225
parent 4960d8e004
commit 9c58193927
3 changed files with 1139 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

360
MdePkg/Include/Library/UefiScsiLib.h
View File

@ -818,4 +818,364 @@ ScsiWrite16Command (
IN UINT32 SectorSize
);
/**
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
);
/**
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
);
/**
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
);
/**
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
);
#endif

776
MdePkg/Library/UefiScsiLib/UefiScsiLib.c
View File

@ -18,6 +18,8 @@
#include <Library/DebugLib.h>
#include <Library/UefiScsiLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <IndustryStandard/Scsi.h>
@ -29,6 +31,39 @@
#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;
/**
@ -1249,3 +1284,744 @@ ScsiWrite16Command (
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_CALLBACK,
ScsiLibNotify,
Context,
&SelfEvent
);
if (EFI_ERROR(Status)) {
goto ErrorExit;
}
return ScsiIo->ExecuteScsiCommand (ScsiIo, CommandPacket, SelfEvent);
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_CALLBACK,
ScsiLibNotify,
Context,
&SelfEvent
);
if (EFI_ERROR(Status)) {
goto ErrorExit;
}
return ScsiIo->ExecuteScsiCommand (ScsiIo, CommandPacket, Event);
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_CALLBACK,
ScsiLibNotify,
Context,
&SelfEvent
);
if (EFI_ERROR(Status)) {
goto ErrorExit;
}
return ScsiIo->ExecuteScsiCommand (ScsiIo, CommandPacket, Event);
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_CALLBACK,
ScsiLibNotify,
Context,
&SelfEvent
);
if (EFI_ERROR(Status)) {
goto ErrorExit;
}
return ScsiIo->ExecuteScsiCommand (ScsiIo, CommandPacket, Event);
ErrorExit:
if (Context != NULL) {
FreePool (Context);
}
return Status;
}

4
MdePkg/Library/UefiScsiLib/UefiScsiLib.inf
View File

@ -4,7 +4,7 @@
# This libarary provides the functions to submit Scsi commands defined
# in SCSI-2 specification for scsi device.
#
# Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
# 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
@ -42,4 +42,6 @@
BaseMemoryLib
DebugLib
BaseLib
MemoryAllocationLib
UefiBootServicesTableLib