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389 lines
18 KiB
C
389 lines
18 KiB
C
/** @file
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EFI_EXT_SCSI_PASS_THRU_PROTOCOL as defined in UEFI 2.0.
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This protocol provides services that allow SCSI Pass Thru commands
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to be sent to SCSI devices attached to a SCSI channel.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __EXT_SCSI_PASS_THROUGH_PROTOCOL_H__
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#define __EXT_SCSI_PASS_THROUGH_PROTOCOL_H__
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#define EFI_EXT_SCSI_PASS_THRU_PROTOCOL_GUID \
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{ \
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0x143b7632, 0xb81b, 0x4cb7, {0xab, 0xd3, 0xb6, 0x25, 0xa5, 0xb9, 0xbf, 0xfe } \
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}
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typedef struct _EFI_EXT_SCSI_PASS_THRU_PROTOCOL EFI_EXT_SCSI_PASS_THRU_PROTOCOL;
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#define TARGET_MAX_BYTES 0x10
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#define EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL 0x0001
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#define EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL 0x0002
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#define EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_NONBLOCKIO 0x0004
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//
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// DataDirection
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//
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#define EFI_EXT_SCSI_DATA_DIRECTION_READ 0
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#define EFI_EXT_SCSI_DATA_DIRECTION_WRITE 1
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#define EFI_EXT_SCSI_DATA_DIRECTION_BIDIRECTIONAL 2
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//
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// HostAdapterStatus
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//
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#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_OK 0x00
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#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_TIMEOUT_COMMAND 0x09
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#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_TIMEOUT 0x0b
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#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_MESSAGE_REJECT 0x0d
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#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_BUS_RESET 0x0e
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#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_PARITY_ERROR 0x0f
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#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_REQUEST_SENSE_FAILED 0x10
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#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_SELECTION_TIMEOUT 0x11
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#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_DATA_OVERRUN_UNDERRUN 0x12
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#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_BUS_FREE 0x13
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#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_PHASE_ERROR 0x14
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#define EFI_EXT_SCSI_STATUS_HOST_ADAPTER_OTHER 0x7f
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//
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// TargetStatus
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//
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#define EFI_EXT_SCSI_STATUS_TARGET_GOOD 0x00
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#define EFI_EXT_SCSI_STATUS_TARGET_CHECK_CONDITION 0x02
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#define EFI_EXT_SCSI_STATUS_TARGET_CONDITION_MET 0x04
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#define EFI_EXT_SCSI_STATUS_TARGET_BUSY 0x08
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#define EFI_EXT_SCSI_STATUS_TARGET_INTERMEDIATE 0x10
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#define EFI_EXT_SCSI_STATUS_TARGET_INTERMEDIATE_CONDITION_MET 0x14
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#define EFI_EXT_SCSI_STATUS_TARGET_RESERVATION_CONFLICT 0x18
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#define EFI_EXT_SCSI_STATUS_TARGET_TASK_SET_FULL 0x28
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#define EFI_EXT_SCSI_STATUS_TARGET_ACA_ACTIVE 0x30
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#define EFI_EXT_SCSI_STATUS_TARGET_TASK_ABORTED 0x40
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typedef struct {
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///
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/// The Target ID of the host adapter on the SCSI channel.
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///
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UINT32 AdapterId;
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///
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/// Additional information on the attributes of the SCSI channel.
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///
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UINT32 Attributes;
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///
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/// Supplies the alignment requirement for any buffer used in a data transfer.
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///
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UINT32 IoAlign;
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} EFI_EXT_SCSI_PASS_THRU_MODE;
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typedef struct {
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///
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/// The timeout, in 100 ns units, to use for the execution of this SCSI
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/// Request Packet. A Timeout value of 0 means that this function
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/// will wait indefinitely for the SCSI Request Packet to execute. If
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/// Timeout is greater than zero, then this function will return
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/// EFI_TIMEOUT if the time required to execute the SCSI
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/// Request Packet is greater than Timeout.
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///
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UINT64 Timeout;
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///
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/// A pointer to the data buffer to transfer between the SCSI
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/// controller and the SCSI device for read and bidirectional commands.
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///
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VOID *InDataBuffer;
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///
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/// A pointer to the data buffer to transfer between the SCSI
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/// controller and the SCSI device for write or bidirectional commands.
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///
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VOID *OutDataBuffer;
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///
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/// A pointer to the sense data that was generated by the execution of
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/// the SCSI Request Packet.
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///
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VOID *SenseData;
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///
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/// A pointer to buffer that contains the Command Data Block to
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/// send to the SCSI device specified by Target and Lun.
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///
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VOID *Cdb;
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///
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/// On Input, the size, in bytes, of InDataBuffer. On output, the
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/// number of bytes transferred between the SCSI controller and the SCSI device.
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///
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UINT32 InTransferLength;
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///
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/// On Input, the size, in bytes of OutDataBuffer. On Output, the
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/// Number of bytes transferred between SCSI Controller and the SCSI device.
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///
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UINT32 OutTransferLength;
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///
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/// The length, in bytes, of the buffer Cdb. The standard values are 6,
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/// 10, 12, and 16, but other values are possible if a variable length CDB is used.
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///
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UINT8 CdbLength;
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///
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/// The direction of the data transfer. 0 for reads, 1 for writes. A
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/// value of 2 is Reserved for Bi-Directional SCSI commands.
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///
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UINT8 DataDirection;
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///
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/// The status of the host adapter specified by This when the SCSI
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/// Request Packet was executed on the target device.
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///
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UINT8 HostAdapterStatus;
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///
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/// The status returned by the device specified by Target and Lun
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/// when the SCSI Request Packet was executed.
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///
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UINT8 TargetStatus;
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///
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/// On input, the length in bytes of the SenseData buffer. On
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/// output, the number of bytes written to the SenseData buffer.
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///
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UINT8 SenseDataLength;
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} EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET;
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/**
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Sends a SCSI Request Packet to a SCSI device that is attached to the SCSI channel. This function
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supports both blocking I/O and nonblocking I/O. The blocking I/O functionality is required, and the
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nonblocking I/O functionality is optional.
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@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
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@param Target The Target is an array of size TARGET_MAX_BYTES and it represents
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the id of the SCSI device to send the SCSI Request Packet. Each
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transport driver may choose to utilize a subset of this size to suit the needs
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of transport target representation. For example, a Fibre Channel driver
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may use only 8 bytes (WWN) to represent an FC target.
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@param Lun The LUN of the SCSI device to send the SCSI Request Packet.
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@param Packet A pointer to the SCSI Request Packet to send to the SCSI device
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specified by Target and Lun.
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@param Event If nonblocking I/O is not supported then Event is ignored, and blocking
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I/O is performed. If Event is NULL, then blocking I/O is performed. If
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Event is not NULL and non blocking I/O is supported, then
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nonblocking I/O is performed, and Event will be signaled when the
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SCSI Request Packet completes.
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@retval EFI_SUCCESS The SCSI Request Packet was sent by the host. For bi-directional
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commands, InTransferLength bytes were transferred from
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InDataBuffer. For write and bi-directional commands,
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OutTransferLength bytes were transferred by
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OutDataBuffer.
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@retval EFI_BAD_BUFFER_SIZE The SCSI Request Packet was not executed. The number of bytes that
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could be transferred is returned in InTransferLength. For write
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and bi-directional commands, OutTransferLength bytes were
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transferred by OutDataBuffer.
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@retval EFI_NOT_READY The SCSI Request Packet could not be sent because there are too many
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SCSI Request Packets already queued. The caller may retry again later.
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@retval EFI_DEVICE_ERROR A device error occurred while attempting to send the SCSI Request
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Packet.
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@retval EFI_INVALID_PARAMETER Target, Lun, or the contents of ScsiRequestPacket are invalid.
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@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet is not supported
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by the host adapter. This includes the case of Bi-directional SCSI
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commands not supported by the implementation. The SCSI Request
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Packet was not sent, so no additional status information is available.
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@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI Request Packet to execute.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_EXT_SCSI_PASS_THRU_PASSTHRU)(
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IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
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IN UINT8 *Target,
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IN UINT64 Lun,
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IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,
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IN EFI_EVENT Event OPTIONAL
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);
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/**
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Used to retrieve the list of legal Target IDs and LUNs for SCSI devices on a SCSI channel. These
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can either be the list SCSI devices that are actually present on the SCSI channel, or the list of legal
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Target Ids and LUNs for the SCSI channel. Regardless, the caller of this function must probe the
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Target ID and LUN returned to see if a SCSI device is actually present at that location on the SCSI
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channel.
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@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
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@param Target On input, a pointer to the Target ID (an array of size
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TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel.
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On output, a pointer to the Target ID (an array of
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TARGET_MAX_BYTES) of the next SCSI device present on a SCSI
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channel. An input value of 0xF(all bytes in the array are 0xF) in the
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Target array retrieves the Target ID of the first SCSI device present on a
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SCSI channel.
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@param Lun On input, a pointer to the LUN of a SCSI device present on the SCSI
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channel. On output, a pointer to the LUN of the next SCSI device present
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on a SCSI channel.
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@retval EFI_SUCCESS The Target ID and LUN of the next SCSI device on the SCSI
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channel was returned in Target and Lun.
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@retval EFI_INVALID_PARAMETER Target array is not all 0xF, and Target and Lun were
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not returned on a previous call to GetNextTargetLun().
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@retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_EXT_SCSI_PASS_THRU_GET_NEXT_TARGET_LUN)(
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IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
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IN OUT UINT8 **Target,
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IN OUT UINT64 *Lun
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);
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/**
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Used to allocate and build a device path node for a SCSI device on a SCSI channel.
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@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
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@param Target The Target is an array of size TARGET_MAX_BYTES and it specifies the
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Target ID of the SCSI device for which a device path node is to be
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allocated and built. Transport drivers may chose to utilize a subset of
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this size to suit the representation of targets. For example, a Fibre
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Channel driver may use only 8 bytes (WWN) in the array to represent a
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FC target.
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@param Lun The LUN of the SCSI device for which a device path node is to be
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allocated and built.
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@param DevicePath A pointer to a single device path node that describes the SCSI device
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specified by Target and Lun. This function is responsible for
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allocating the buffer DevicePath with the boot service
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AllocatePool(). It is the caller's responsibility to free
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DevicePath when the caller is finished with DevicePath.
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@retval EFI_SUCCESS The device path node that describes the SCSI device specified by
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Target and Lun was allocated and returned in
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DevicePath.
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@retval EFI_INVALID_PARAMETER DevicePath is NULL.
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@retval EFI_NOT_FOUND The SCSI devices specified by Target and Lun does not exist
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on the SCSI channel.
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@retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate DevicePath.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_EXT_SCSI_PASS_THRU_BUILD_DEVICE_PATH)(
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IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
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IN UINT8 *Target,
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IN UINT64 Lun,
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IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath
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);
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/**
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Used to translate a device path node to a Target ID and LUN.
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@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
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@param DevicePath A pointer to a single device path node that describes the SCSI device
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on the SCSI channel.
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@param Target A pointer to the Target Array which represents the ID of a SCSI device
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on the SCSI channel.
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@param Lun A pointer to the LUN of a SCSI device on the SCSI channel.
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@retval EFI_SUCCESS DevicePath was successfully translated to a Target ID and
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LUN, and they were returned in Target and Lun.
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@retval EFI_INVALID_PARAMETER DevicePath or Target or Lun is NULL.
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@retval EFI_NOT_FOUND A valid translation from DevicePath to a Target ID and LUN
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does not exist.
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@retval EFI_UNSUPPORTED This driver does not support the device path node type in
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DevicePath.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_EXT_SCSI_PASS_THRU_GET_TARGET_LUN)(
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IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
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OUT UINT8 **Target,
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OUT UINT64 *Lun
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);
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/**
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Resets a SCSI channel. This operation resets all the SCSI devices connected to the SCSI channel.
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@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
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@retval EFI_SUCCESS The SCSI channel was reset.
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@retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI channel.
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@retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI channel.
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@retval EFI_UNSUPPORTED The SCSI channel does not support a channel reset operation.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_EXT_SCSI_PASS_THRU_RESET_CHANNEL)(
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IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This
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);
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/**
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Resets a SCSI logical unit that is connected to a SCSI channel.
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@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
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@param Target The Target is an array of size TARGET_MAX_BYTE and it represents the
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target port ID of the SCSI device containing the SCSI logical unit to
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reset. Transport drivers may chose to utilize a subset of this array to suit
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the representation of their targets.
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@param Lun The LUN of the SCSI device to reset.
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@retval EFI_SUCCESS The SCSI device specified by Target and Lun was reset.
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@retval EFI_INVALID_PARAMETER Target or Lun is NULL.
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@retval EFI_TIMEOUT A timeout occurred while attempting to reset the SCSI device
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specified by Target and Lun.
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@retval EFI_UNSUPPORTED The SCSI channel does not support a target reset operation.
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@retval EFI_DEVICE_ERROR A device error occurred while attempting to reset the SCSI device
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specified by Target and Lun.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_EXT_SCSI_PASS_THRU_RESET_TARGET_LUN)(
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IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
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IN UINT8 *Target,
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IN UINT64 Lun
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);
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/**
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Used to retrieve the list of legal Target IDs for SCSI devices on a SCSI channel. These can either
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be the list SCSI devices that are actually present on the SCSI channel, or the list of legal Target IDs
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for the SCSI channel. Regardless, the caller of this function must probe the Target ID returned to
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see if a SCSI device is actually present at that location on the SCSI channel.
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@param This A pointer to the EFI_EXT_SCSI_PASS_THRU_PROTOCOL instance.
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@param Target (TARGET_MAX_BYTES) of a SCSI device present on the SCSI channel.
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On output, a pointer to the Target ID (an array of
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TARGET_MAX_BYTES) of the next SCSI device present on a SCSI
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channel. An input value of 0xF(all bytes in the array are 0xF) in the
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Target array retrieves the Target ID of the first SCSI device present on a
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SCSI channel.
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@retval EFI_SUCCESS The Target ID of the next SCSI device on the SCSI
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channel was returned in Target.
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@retval EFI_INVALID_PARAMETER Target or Lun is NULL.
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@retval EFI_TIMEOUT Target array is not all 0xF, and Target was not
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returned on a previous call to GetNextTarget().
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@retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_EXT_SCSI_PASS_THRU_GET_NEXT_TARGET)(
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IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,
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IN OUT UINT8 **Target
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);
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///
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/// The EFI_EXT_SCSI_PASS_THRU_PROTOCOL provides information about a SCSI channel
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/// and the ability to send SCI Request Packets to any SCSI device attached to
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/// that SCSI channel. The information includes the Target ID of the host controller
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/// on the SCSI channel and the attributes of the SCSI channel.
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///
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struct _EFI_EXT_SCSI_PASS_THRU_PROTOCOL {
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///
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/// A pointer to the EFI_EXT_SCSI_PASS_THRU_MODE data for this SCSI channel.
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///
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EFI_EXT_SCSI_PASS_THRU_MODE *Mode;
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EFI_EXT_SCSI_PASS_THRU_PASSTHRU PassThru;
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EFI_EXT_SCSI_PASS_THRU_GET_NEXT_TARGET_LUN GetNextTargetLun;
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EFI_EXT_SCSI_PASS_THRU_BUILD_DEVICE_PATH BuildDevicePath;
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EFI_EXT_SCSI_PASS_THRU_GET_TARGET_LUN GetTargetLun;
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EFI_EXT_SCSI_PASS_THRU_RESET_CHANNEL ResetChannel;
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EFI_EXT_SCSI_PASS_THRU_RESET_TARGET_LUN ResetTargetLun;
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EFI_EXT_SCSI_PASS_THRU_GET_NEXT_TARGET GetNextTarget;
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};
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extern EFI_GUID gEfiExtScsiPassThruProtocolGuid;
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#endif
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