| /** @file |
| EFI_SCSI_IO_PROTOCOL as defined in UEFI 2.0. |
| This protocol is used by code, typically drivers, running in the EFI boot |
| services environment to access SCSI devices. In particular, functions for |
| managing devices on SCSI buses are defined here. |
| |
| Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> |
| SPDX-License-Identifier: BSD-2-Clause-Patent |
| |
| **/ |
| |
| #ifndef __EFI_SCSI_IO_PROTOCOL_H__ |
| #define __EFI_SCSI_IO_PROTOCOL_H__ |
| |
| #define EFI_SCSI_IO_PROTOCOL_GUID \ |
| { \ |
| 0x932f47e6, 0x2362, 0x4002, {0x80, 0x3e, 0x3c, 0xd5, 0x4b, 0x13, 0x8f, 0x85 } \ |
| } |
| |
| /// |
| /// Forward reference for pure ANSI compatability |
| /// |
| typedef struct _EFI_SCSI_IO_PROTOCOL EFI_SCSI_IO_PROTOCOL; |
| |
| // |
| // SCSI Device type information, defined in the SCSI Primary Commands standard (e.g., SPC-4) |
| // |
| #define EFI_SCSI_IO_TYPE_DISK 0x00 ///< Disk device |
| #define EFI_SCSI_IO_TYPE_TAPE 0x01 ///< Tape device |
| #define EFI_SCSI_IO_TYPE_PRINTER 0x02 ///< Printer |
| #define EFI_SCSI_IO_TYPE_PROCESSOR 0x03 ///< Processor |
| #define EFI_SCSI_IO_TYPE_WORM 0x04 ///< Write-once read-multiple |
| #define EFI_SCSI_IO_TYPE_CDROM 0x05 ///< CD or DVD device |
| #define EFI_SCSI_IO_TYPE_SCANNER 0x06 ///< Scanner device |
| #define EFI_SCSI_IO_TYPE_OPTICAL 0x07 ///< Optical memory device |
| #define EFI_SCSI_IO_TYPE_MEDIUMCHANGER 0x08 ///< Medium Changer device |
| #define EFI_SCSI_IO_TYPE_COMMUNICATION 0x09 ///< Communications device |
| #define MFI_SCSI_IO_TYPE_A 0x0A ///< Obsolete |
| #define MFI_SCSI_IO_TYPE_B 0x0B ///< Obsolete |
| #define MFI_SCSI_IO_TYPE_RAID 0x0C ///< Storage array controller device (e.g., RAID) |
| #define MFI_SCSI_IO_TYPE_SES 0x0D ///< Enclosure services device |
| #define MFI_SCSI_IO_TYPE_RBC 0x0E ///< Simplified direct-access device (e.g., magnetic disk) |
| #define MFI_SCSI_IO_TYPE_OCRW 0x0F ///< Optical card reader/writer device |
| #define MFI_SCSI_IO_TYPE_BRIDGE 0x10 ///< Bridge Controller Commands |
| #define MFI_SCSI_IO_TYPE_OSD 0x11 ///< Object-based Storage Device |
| #define EFI_SCSI_IO_TYPE_RESERVED_LOW 0x12 ///< Reserved (low) |
| #define EFI_SCSI_IO_TYPE_RESERVED_HIGH 0x1E ///< Reserved (high) |
| #define EFI_SCSI_IO_TYPE_UNKNOWN 0x1F ///< Unknown no device type |
| |
| // |
| // SCSI Data Direction definition |
| // |
| #define EFI_SCSI_IO_DATA_DIRECTION_READ 0 |
| #define EFI_SCSI_IO_DATA_DIRECTION_WRITE 1 |
| #define EFI_SCSI_IO_DATA_DIRECTION_BIDIRECTIONAL 2 |
| |
| // |
| // SCSI Host Adapter Status definition |
| // |
| #define EFI_SCSI_IO_STATUS_HOST_ADAPTER_OK 0x00 |
| #define EFI_SCSI_IO_STATUS_HOST_ADAPTER_TIMEOUT_COMMAND 0x09 ///< timeout when processing the command |
| #define EFI_SCSI_IO_STATUS_HOST_ADAPTER_TIMEOUT 0x0b ///< timeout when waiting for the command processing |
| #define EFI_SCSI_IO_STATUS_HOST_ADAPTER_MESSAGE_REJECT 0x0d ///< a message reject was received when processing command |
| #define EFI_SCSI_IO_STATUS_HOST_ADAPTER_BUS_RESET 0x0e ///< a bus reset was detected |
| #define EFI_SCSI_IO_STATUS_HOST_ADAPTER_PARITY_ERROR 0x0f |
| #define EFI_SCSI_IO_STATUS_HOST_ADAPTER_REQUEST_SENSE_FAILED 0x10 ///< the adapter failed in issuing request sense command |
| #define EFI_SCSI_IO_STATUS_HOST_ADAPTER_SELECTION_TIMEOUT 0x11 ///< selection timeout |
| #define EFI_SCSI_IO_STATUS_HOST_ADAPTER_DATA_OVERRUN_UNDERRUN 0x12 ///< data overrun or data underrun |
| #define EFI_SCSI_IO_STATUS_HOST_ADAPTER_BUS_FREE 0x13 ///< Unexepected bus free |
| #define EFI_SCSI_IO_STATUS_HOST_ADAPTER_PHASE_ERROR 0x14 ///< Target bus phase sequence failure |
| #define EFI_SCSI_IO_STATUS_HOST_ADAPTER_OTHER 0x7f |
| |
| // |
| // SCSI Target Status definition |
| // |
| #define EFI_SCSI_IO_STATUS_TARGET_GOOD 0x00 |
| #define EFI_SCSI_IO_STATUS_TARGET_CHECK_CONDITION 0x02 ///< check condition |
| #define EFI_SCSI_IO_STATUS_TARGET_CONDITION_MET 0x04 ///< condition met |
| #define EFI_SCSI_IO_STATUS_TARGET_BUSY 0x08 ///< busy |
| #define EFI_SCSI_IO_STATUS_TARGET_INTERMEDIATE 0x10 ///< intermediate |
| #define EFI_SCSI_IO_STATUS_TARGET_INTERMEDIATE_CONDITION_MET 0x14 ///< intermediate-condition met |
| #define EFI_SCSI_IO_STATUS_TARGET_RESERVATION_CONFLICT 0x18 ///< reservation conflict |
| #define EFI_SCSI_IO_STATUS_TARGET_COMMOND_TERMINATED 0x22 ///< command terminated |
| #define EFI_SCSI_IO_STATUS_TARGET_QUEUE_FULL 0x28 ///< queue full |
| |
| typedef struct { |
| /// |
| /// The timeout, in 100 ns units, to use for the execution of this SCSI |
| /// Request Packet. A Timeout value of 0 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. |
| /// |
| UINT64 Timeout; |
| /// |
| /// A pointer to the data buffer to transfer between the SCSI |
| /// controller and the SCSI device for SCSI READ command |
| /// |
| VOID *InDataBuffer; |
| /// |
| /// A pointer to the data buffer to transfer between the SCSI |
| /// controller and the SCSI device for SCSI WRITE command. |
| /// |
| VOID *OutDataBuffer; |
| /// |
| /// A pointer to the sense data that was generated by the execution of |
| /// the SCSI Request Packet. |
| /// |
| VOID *SenseData; |
| /// |
| /// A pointer to buffer that contains the Command Data Block to |
| /// send to the SCSI device. |
| /// |
| VOID *Cdb; |
| /// |
| /// On Input, the size, in bytes, of InDataBuffer. On output, the |
| /// number of bytes transferred between the SCSI controller and the SCSI device. |
| /// |
| UINT32 InTransferLength; |
| /// |
| /// On Input, the size, in bytes of OutDataBuffer. On Output, the |
| /// Number of bytes transferred between SCSI Controller and the SCSI device. |
| /// |
| UINT32 OutTransferLength; |
| /// |
| /// The length, in bytes, of the buffer Cdb. The standard values are |
| /// 6, 10, 12, and 16, but other values are possible if a variable length CDB is used. |
| /// |
| UINT8 CdbLength; |
| /// |
| /// The direction of the data transfer. 0 for reads, 1 for writes. A |
| /// value of 2 is Reserved for Bi-Directional SCSI commands. |
| /// |
| UINT8 DataDirection; |
| /// |
| /// The status of the SCSI Host Controller that produces the SCSI |
| /// bus where the SCSI device attached when the SCSI Request |
| /// Packet was executed on the SCSI Controller. |
| /// |
| UINT8 HostAdapterStatus; |
| /// |
| /// The status returned by the SCSI device when the SCSI Request |
| /// Packet was executed. |
| /// |
| UINT8 TargetStatus; |
| /// |
| /// On input, the length in bytes of the SenseData buffer. On |
| /// output, the number of bytes written to the SenseData buffer. |
| /// |
| UINT8 SenseDataLength; |
| } EFI_SCSI_IO_SCSI_REQUEST_PACKET; |
| |
| /** |
| Retrieves the device type information of the SCSI Controller. |
| |
| @param This Protocol instance pointer. |
| @param DeviceType A pointer to the device type information |
| retrieved from the SCSI Controller. |
| |
| @retval EFI_SUCCESS Retrieved the device type information successfully. |
| @retval EFI_INVALID_PARAMETER The DeviceType is NULL. |
| |
| **/ |
| typedef |
| EFI_STATUS |
| (EFIAPI *EFI_SCSI_IO_PROTOCOL_GET_DEVICE_TYPE)( |
| IN EFI_SCSI_IO_PROTOCOL *This, |
| OUT UINT8 *DeviceType |
| ); |
| |
| /** |
| Retrieves the device location in the SCSI channel. |
| |
| @param This Protocol instance pointer. |
| @param Target A pointer to the Target ID of a SCSI device |
| on the SCSI channel. |
| @param Lun A pointer to the LUN of the SCSI device on |
| the SCSI channel. |
| |
| @retval EFI_SUCCESS Retrieves the device location successfully. |
| @retval EFI_INVALID_PARAMETER The Target or Lun is NULL. |
| |
| **/ |
| typedef |
| EFI_STATUS |
| (EFIAPI *EFI_SCSI_IO_PROTOCOL_GET_DEVICE_LOCATION)( |
| IN EFI_SCSI_IO_PROTOCOL *This, |
| IN OUT UINT8 **Target, |
| OUT UINT64 *Lun |
| ); |
| |
| /** |
| Resets the SCSI Bus that the SCSI Controller is attached to. |
| |
| @param This Protocol instance pointer. |
| |
| @retval EFI_SUCCESS The SCSI bus is reset successfully. |
| @retval EFI_DEVICE_ERROR Errors encountered when resetting the SCSI bus. |
| @retval EFI_UNSUPPORTED The bus reset operation is not supported by the |
| SCSI Host Controller. |
| @retval EFI_TIMEOUT A timeout occurred while attempting to reset |
| the SCSI bus. |
| |
| **/ |
| typedef |
| EFI_STATUS |
| (EFIAPI *EFI_SCSI_IO_PROTOCOL_RESET_BUS)( |
| IN EFI_SCSI_IO_PROTOCOL *This |
| ); |
| |
| /** |
| Resets the SCSI Controller that the device handle specifies. |
| |
| @param This Protocol instance pointer. |
| |
| @retval EFI_SUCCESS Reset the SCSI controller successfully. |
| @retval EFI_DEVICE_ERROR Errors were encountered when resetting the |
| SCSI Controller. |
| @retval EFI_UNSUPPORTED The SCSI bus does not support a device |
| reset operation. |
| @retval EFI_TIMEOUT A timeout occurred while attempting to |
| reset the SCSI Controller. |
| |
| **/ |
| typedef |
| EFI_STATUS |
| (EFIAPI *EFI_SCSI_IO_PROTOCOL_RESET_DEVICE)( |
| IN EFI_SCSI_IO_PROTOCOL *This |
| ); |
| |
| /** |
| Sends a SCSI Request Packet to the SCSI Controller for execution. |
| |
| @param This Protocol instance pointer. |
| @param Packet The SCSI request packet to send to the SCSI |
| Controller specified by the device handle. |
| @param Event If the SCSI bus to which the SCSI device is attached |
| 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 Request |
| Packet completes. |
| |
| @retval EFI_SUCCESS The SCSI Request Packet was sent by the host |
| successfully, and TransferLength bytes were |
| transferred to/from DataBuffer. 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 TransferLength. 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 caller may retry again later. |
| @retval EFI_DEVICE_ERROR A device error occurred while attempting to send |
| the SCSI Request Packet. See HostAdapterStatus, |
| TargetStatus, SenseDataLength, and SenseData in |
| that order for additional status information. |
| @retval EFI_INVALID_PARAMETER The contents of CommandPacket are invalid. |
| The SCSI Request Packet was not sent, so no |
| additional status information is available. |
| @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. |
| |
| **/ |
| typedef |
| EFI_STATUS |
| (EFIAPI *EFI_SCSI_IO_PROTOCOL_EXEC_SCSI_COMMAND)( |
| IN EFI_SCSI_IO_PROTOCOL *This, |
| IN OUT EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet, |
| IN EFI_EVENT Event OPTIONAL |
| ); |
| |
| /// |
| /// Provides services to manage and communicate with SCSI devices. |
| /// |
| struct _EFI_SCSI_IO_PROTOCOL { |
| EFI_SCSI_IO_PROTOCOL_GET_DEVICE_TYPE GetDeviceType; |
| EFI_SCSI_IO_PROTOCOL_GET_DEVICE_LOCATION GetDeviceLocation; |
| EFI_SCSI_IO_PROTOCOL_RESET_BUS ResetBus; |
| EFI_SCSI_IO_PROTOCOL_RESET_DEVICE ResetDevice; |
| EFI_SCSI_IO_PROTOCOL_EXEC_SCSI_COMMAND ExecuteScsiCommand; |
| |
| /// |
| /// Supplies the alignment requirement for any buffer used in a data transfer. |
| /// IoAlign values of 0 and 1 mean that the buffer can be placed anywhere in memory. |
| /// Otherwise, IoAlign must be a power of 2, and the requirement is that the |
| /// start address of a buffer must be evenly divisible by IoAlign with no remainder. |
| /// |
| UINT32 IoAlign; |
| }; |
| |
| extern EFI_GUID gEfiScsiIoProtocolGuid; |
| |
| #endif |