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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
Module Name:
ScsiPassThruExt.h
Abstract:
EFI_EXT_SCSI_PASS_THRU_PROTOCOL as defined in UEFI 2.0.
Revision History
--*/
#ifndef __EXT_SCSI_PASS_THROUGH_PROTOCOL_H__
#define __EXT_SCSI_PASS_THROUGH_PROTOCOL_H__
#define EFI_EXT_SCSI_PASS_THRU_PROTOCOL_GUID \
{ \
0x143b7632, 0xb81b, 0x4cb7, {0xab, 0xd3, 0xb6, 0x25, 0xa5, 0xb9, 0xbf, 0xfe } \
}
typedef struct _EFI_EXT_SCSI_PASS_THRU_PROTOCOL EFI_EXT_SCSI_PASS_THRU_PROTOCOL;
#define TARGET_MAX_BYTES 0x10
#define EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL 0x0001
#define EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL 0x0002
#define EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_NONBLOCKIO 0x0004
//
// DataDirection
//
#define EFI_EXT_SCSI_DATA_DIRECTION_READ 0
#define EFI_EXT_SCSI_DATA_DIRECTION_WRITE 1
#define EFI_EXT_SCSI_DATA_DIRECTION_BIDIRECTIONAL 2
//
// HostAdapterStatus
//
#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_OK 0x00
#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_TIMEOUT_COMMAND 0x09
#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_TIMEOUT 0x0b
#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_MESSAGE_REJECT 0x0d
#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_BUS_RESET 0x0e
#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_PARITY_ERROR 0x0f
#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_REQUEST_SENSE_FAILED 0x10
#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_SELECTION_TIMEOUT 0x11
#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_DATA_OVERRUN_UNDERRUN 0x12
#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_BUS_FREE 0x13
#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_PHASE_ERROR 0x14
#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_OTHER 0x7f
//
// TargetStatus
//
#define EFI_EXT_SCSI_STATUS_TARGET_GOOD 0x00
#define EFI_EXT_SCSI_STATUS_TARGET_CHECK_CONDITION 0x02
#define EFI_EXT_SCSI_STATUS_TARGET_CONDITION_MET 0x04
#define EFI_EXT_SCSI_STATUS_TARGET_BUSY 0x08
#define EFI_EXT_SCSI_STATUS_TARGET_INTERMEDIATE 0x10
#define EFI_EXT_SCSI_STATUS_TARGET_INTERMEDIATE_CONDITION_MET 0x14
#define EFI_EXT_SCSI_STATUS_TARGET_RESERVATION_CONFLICT 0x18
#define EFI_EXT_SCSI_STATUS_TARGET_TASK_SET_FULL 0x28
#define EFI_EXT_SCSI_STATUS_TARGET_ACA_ACTIVE 0x30
#define EFI_EXT_SCSI_STATUS_TARGET_TASK_ABORTED 0x40
typedef struct {
UINT32 AdapterId;
UINT32 Attributes;
UINT32 IoAlign;
} EFI_EXT_SCSI_PASS_THRU_MODE;
typedef struct {
UINT64 Timeout;
VOID *InDataBuffer;
VOID *OutDataBuffer;
VOID *SenseData;
VOID *Cdb;
UINT32 InTransferLength;
UINT32 OutTransferLength;
UINT8 CdbLength;
UINT8 DataDirection;
UINT8 HostAdapterStatus;
UINT8 TargetStatus;
UINT8 SenseDataLength;
} EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET;
typedef
EFI_STATUS
(EFIAPI *EFI_EXT_SCSI_PASS_THRU_PASSTHRU) (
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
IN UINT8 *Target,
IN UINT64 Lun,
IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,
IN EFI_EVENT Event OPTIONAL
)
/*++
Routine Description:
Sends a SCSI Request Packet to a SCSI device that is attached to the SCSI channel. This function
supports both blocking I/O and nonblocking I/O. The blocking I/O functionality is required, and the
nonblocking I/O functionality is optional.
Arguments:
This - A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
Target - The Target is an array of size TARGET_MAX_BYTES and it represents
the id of the SCSI device to send the SCSI Request Packet. Each
transport driver may chose to utilize a subset of this size to suit the needs
of transport target representation. For example, a Fibre Channel driver
may use only 8 bytes (WWN) to represent an FC target.
Lun - The LUN of the SCSI device to send the SCSI Request Packet.
Packet - A pointer to the SCSI Request Packet to send to the SCSI device
specified by Target and Lun.
Event - If nonblocking I/O is not supported then Event is ignored, and blocking
I/O is performed. If Event is NULL, then blocking I/O is performed. If
Event is not NULL and non blocking I/O is supported, then
nonblocking I/O is performed, and Event will be signaled when the
SCSI Request Packet completes.
Returns:
EFI_SUCCESS - The SCSI Request Packet was sent by the host. For bi-directional
commands, InTransferLength bytes were transferred from
InDataBuffer. For write and bi-directional commands,
OutTransferLength bytes were transferred by
OutDataBuffer.
EFI_BAD_BUFFER_SIZE - The SCSI Request Packet was not executed. The number of bytes that
could be transferred is returned in InTransferLength. For write
and bi-directional commands, OutTransferLength bytes were
transferred by OutDataBuffer.
EFI_NOT_READY - The SCSI Request Packet could not be sent because there are too many
SCSI Request Packets already queued. The caller may retry again later.
EFI_DEVICE_ERROR - A device error occurred while attempting to send the SCSI Request
Packet.
EFI_INVALID_PARAMETER- Target, Lun, or the contents of ScsiRequestPacket are invalid.
EFI_UNSUPPORTED - The command described by the SCSI Request Packet is not supported
by the host adapter. This includes the case of Bi-directional SCSI
commands not supported by the implementation. The SCSI Request
Packet was not sent, so no additional status information is available.
EFI_TIMEOUT - A timeout occurred while waiting for the SCSI Request Packet to execute.
--*/
;
typedef
EFI_STATUS
(EFIAPI *EFI_EXT_SCSI_PASS_THRU_GET_NEXT_TARGET_LUN) (
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
IN OUT UINT8 **Target,
IN OUT UINT64 *Lun
)
/*++
Routine Description:
Used to retrieve the list of legal Target IDs and LUNs for SCSI devices on a SCSI channel. These
can either be the list SCSI devices that are actually present on the SCSI channel, or the list of legal
Target Ids and LUNs for the SCSI channel. Regardless, the caller of this function must probe the
Target ID and LUN returned to see if a SCSI device is actually present at that location on the SCSI
channel.
Arguments:
This - A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance
Target - On input, a pointer to the Target ID (an array of size
TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel.
On output, a pointer to the Target ID (an array of
TARGET_MAX_BYTES) of the next SCSI device present on a SCSI
channel. An input value of 0xF(all bytes in the array are 0xF) in the
Target array retrieves the Target ID of the first SCSI device present on
a SCSI channel.
Lun - On input, a pointer to the LUN of a SCSI device present on the SCSI
channel. On output, a pointer to the LUN of the next SCSI device present
on a SCSI channel.
Returns:
EFI_SUCCESS - The Target ID and LUN of the next SCSI device on the SCSI
channel was returned in Target and Lun.
EFI_INVALID_PARAMETER - Target array is not all 0xF, and Target and Lun were
not returned on a previous call to GetNextTargetLun().
EFI_NOT_FOUND - There are no more SCSI devices on this SCSI channel.
--*/
;
typedef
EFI_STATUS
(EFIAPI *EFI_EXT_SCSI_PASS_THRU_BUILD_DEVICE_PATH) (
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
IN UINT8 *Target,
IN UINT64 Lun,
IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
)
/*++
Routine Description:
Used to allocate and build a device path node for a SCSI device on a SCSI channel.
Arguments:
This - A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
Target - The Target is an array of size TARGET_MAX_BYTES and it specifies the
Target ID of the SCSI device for which a device path node is to be
allocated and built. Transport drivers may chose to utilize a subset of
this size to suit the representation of targets. For example, a Fibre
Channel driver may use only 8 bytes (WWN) in the array to represent a
FC target.
Lun - The LUN of the SCSI device for which a device path node is to be
allocated and built.
DevicePath - A pointer to a single device path node that describes the SCSI device
specified by Target and Lun. This function is responsible for
allocating the buffer DevicePath with the boot service
AllocatePool(). It is the caller's responsibility to free
DevicePath when the caller is finished with DevicePath.
Returns:
EFI_SUCCESS - The device path node that describes the SCSI device specified by
Target and Lun was allocated and returned in
DevicePath.
EFI_INVALID_PARAMETER - DevicePath is NULL.
EFI_NOT_FOUND - The SCSI devices specified by Target and Lun does not exist
on the SCSI channel.
EFI_OUT_OF_RESOURCES - There are not enough resources to allocate DevicePath.
--*/
;
typedef
EFI_STATUS
(EFIAPI *EFI_EXT_SCSI_PASS_THRU_GET_TARGET_LUN) (
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
OUT UINT8 **Target,
OUT UINT64 *Lun
)
/*++
Routine Description:
Used to translate a device path node to a Target ID and LUN.
Arguments:
This - A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
DevicePath - A pointer to a single device path node that describes the SCSI device
on the SCSI channel.
Target - A pointer to the Target Array which represents the ID of a SCSI device
on the SCSI channel.
Lun - A pointer to the LUN of a SCSI device on the SCSI channel.
Returns:
EFI_SUCCESS - DevicePath was successfully translated to a Target ID and
LUN, and they were returned in Target and Lun.
EFI_INVALID_PARAMETER - DevicePath or Target or Lun is NULL.
EFI_NOT_FOUND - A valid translation from DevicePath to a Target ID and LUN
does not exist.
EFI_UNSUPPORTED - This driver does not support the device path node type in
DevicePath.
--*/
;
typedef
EFI_STATUS
(EFIAPI *EFI_EXT_SCSI_PASS_THRU_RESET_CHANNEL) (
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This
)
/*++
Routine Description:
Resets a SCSI channel. This operation resets all the SCSI devices connected to the SCSI channel.
Arguments:
This - A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
Returns:
EFI_SUCCESS - The SCSI channel was reset.
EFI_DEVICE_ERROR - A device error occurred while attempting to reset the SCSI channel.
EFI_TIMEOUT - A timeout occurred while attempting to reset the SCSI channel.
EFI_UNSUPPORTED - The SCSI channel does not support a channel reset operation.
--*/
;
typedef
EFI_STATUS
(EFIAPI *EFI_EXT_SCSI_PASS_THRU_RESET_TARGET_LUN) (
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
IN UINT8 *Target,
IN UINT64 Lun
)
/*++
Routine Description:
Resets a SCSI logical unit that is connected to a SCSI channel.
Arguments:
This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
Target The Target is an array of size TARGET_MAX_BYTE and it represents the
target port ID of the SCSI device containing the SCSI logical unit to
reset. Transport drivers may chose to utilize a subset of this array to suit
the representation of their targets.
Lun The LUN of the SCSI device to reset.
Returns:
EFI_SUCCESS - The SCSI device specified by Target and Lun was reset.
EFI_INVALID_PARAMETER - Target or Lun is NULL.
EFI_TIMEOUT - A timeout occurred while attempting to reset the SCSI device
specified by Target and Lun.
EFI_UNSUPPORTED - The SCSI channel does not support a target reset operation.
EFI_DEVICE_ERROR - A device error occurred while attempting to reset the SCSI device
specified by Target and Lun.
--*/
;
typedef
EFI_STATUS
(EFIAPI *EFI_EXT_SCSI_PASS_THRU_GET_NEXT_TARGET) (
IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
IN OUT UINT8 **Target
)
/*++
Routine Description:
Used to retrieve the list of legal Target IDs for SCSI devices on a SCSI channel. These can either
be the list SCSI devices that are actually present on the SCSI channel, or the list of legal Target IDs
for the SCSI channel. Regardless, the caller of this function must probe the Target ID returned to
see if a SCSI device is actually present at that location on the SCSI channel.
Arguments:
This - A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
Target - (TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel.
On output, a pointer to the Target ID (an array of
TARGET_MAX_BYTES) of the next SCSI device present on a SCSI
channel. An input value of 0xF(all bytes in the array are 0xF) in the
Target array retrieves the Target ID of the first SCSI device present on a
SCSI channel.
Returns:
EFI_SUCCESS - The Target ID of the next SCSI device on the SCSI
channel was returned in Target.
EFI_INVALID_PARAMETER - Target or Lun is NULL.
EFI_TIMEOUT - Target array is not all 0xF, and Target were not
returned on a previous call to GetNextTarget().
EFI_NOT_FOUND - There are no more SCSI devices on this SCSI channel.
--*/
;
struct _EFI_EXT_SCSI_PASS_THRU_PROTOCOL {
EFI_EXT_SCSI_PASS_THRU_MODE *Mode;
EFI_EXT_SCSI_PASS_THRU_PASSTHRU PassThru;
EFI_EXT_SCSI_PASS_THRU_GET_NEXT_TARGET_LUN GetNextTargetLun;
EFI_EXT_SCSI_PASS_THRU_BUILD_DEVICE_PATH BuildDevicePath;
EFI_EXT_SCSI_PASS_THRU_GET_TARGET_LUN GetTargetLun;
EFI_EXT_SCSI_PASS_THRU_RESET_CHANNEL ResetChannel;
EFI_EXT_SCSI_PASS_THRU_RESET_TARGET_LUN ResetTargetLun;
EFI_EXT_SCSI_PASS_THRU_GET_NEXT_TARGET GetNextTarget;
};
extern EFI_GUID gEfiExtScsiPassThruProtocolGuid;
#endif
|
