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192
pkg/scsi/cmd.go
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192
pkg/scsi/cmd.go
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/*
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Copyright 2015 The GoStor Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package scsi
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type SCSICommandType byte
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var (
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TEST_UNIT_READY SCSICommandType = 0x00
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REZERO_UNIT SCSICommandType = 0x01
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REQUEST_SENSE SCSICommandType = 0x03
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FORMAT_UNIT SCSICommandType = 0x04
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READ_BLOCK_LIMITS SCSICommandType = 0x05
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REASSIGN_BLOCKS SCSICommandType = 0x07
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INITIALIZE_ELEMENT_STATUS SCSICommandType = 0x07
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READ_6 SCSICommandType = 0x08
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WRITE_6 SCSICommandType = 0x0a
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SEEK_6 SCSICommandType = 0x0b
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READ_REVERSE SCSICommandType = 0x0f
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WRITE_FILEMARKS SCSICommandType = 0x10
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SPACE SCSICommandType = 0x11
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INQUIRY SCSICommandType = 0x12
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RECOVER_BUFFERED_DATA SCSICommandType = 0x14
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MODE_SELECT SCSICommandType = 0x15
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RESERVE SCSICommandType = 0x16
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RELEASE SCSICommandType = 0x17
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COPY SCSICommandType = 0x18
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ERASE SCSICommandType = 0x19
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MODE_SENSE SCSICommandType = 0x1a
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START_STOP SCSICommandType = 0x1b
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RECEIVE_DIAGNOSTIC SCSICommandType = 0x1c
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SEND_DIAGNOSTIC SCSICommandType = 0x1d
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ALLOW_MEDIUM_REMOVAL SCSICommandType = 0x1e
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SET_WINDOW SCSICommandType = 0x24
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READ_CAPACITY SCSICommandType = 0x25
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READ_10 SCSICommandType = 0x28
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WRITE_10 SCSICommandType = 0x2a
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SEEK_10 SCSICommandType = 0x2b
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POSITION_TO_ELEMENT SCSICommandType = 0x2b
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WRITE_VERIFY SCSICommandType = 0x2e
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VERIFY_10 SCSICommandType = 0x2f
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SEARCH_HIGH SCSICommandType = 0x30
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SEARCH_EQUAL SCSICommandType = 0x31
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SEARCH_LOW SCSICommandType = 0x32
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SET_LIMITS SCSICommandType = 0x33
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PRE_FETCH_10 SCSICommandType = 0x34
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READ_POSITION SCSICommandType = 0x34
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SYNCHRONIZE_CACHE SCSICommandType = 0x35
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LOCK_UNLOCK_CACHE SCSICommandType = 0x36
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READ_DEFECT_DATA SCSICommandType = 0x37
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INITIALIZE_ELEMENT_STATUS_WITH_RANGE SCSICommandType = 0x37
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MEDIUM_SCAN SCSICommandType = 0x38
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COMPARE SCSICommandType = 0x39
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COPY_VERIFY SCSICommandType = 0x3a
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WRITE_BUFFER SCSICommandType = 0x3b
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READ_BUFFER SCSICommandType = 0x3c
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UPDATE_BLOCK SCSICommandType = 0x3d
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READ_LONG SCSICommandType = 0x3e
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WRITE_LONG SCSICommandType = 0x3f
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CHANGE_DEFINITION SCSICommandType = 0x40
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WRITE_SAME SCSICommandType = 0x41
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UNMAP SCSICommandType = 0x42
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READ_TOC SCSICommandType = 0x43
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GET_CONFIGURATION SCSICommandType = 0x46
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LOG_SELECT SCSICommandType = 0x4c
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LOG_SENSE SCSICommandType = 0x4d
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READ_DISK_INFO SCSICommandType = 0x51
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READ_TRACK_INFO SCSICommandType = 0x52
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MODE_SELECT_10 SCSICommandType = 0x55
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RESERVE_10 SCSICommandType = 0x56
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RELEASE_10 SCSICommandType = 0x57
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MODE_SENSE_10 SCSICommandType = 0x5a
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CLOSE_TRACK SCSICommandType = 0x5b
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READ_BUFFER_CAP SCSICommandType = 0x5c
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PERSISTENT_RESERVE_IN SCSICommandType = 0x5e
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PERSISTENT_RESERVE_OUT SCSICommandType = 0x5f
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VARLEN_CDB SCSICommandType = 0x7f
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READ_16 SCSICommandType = 0x88
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COMPARE_AND_WRITE SCSICommandType = 0x89
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WRITE_16 SCSICommandType = 0x8a
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ORWRITE_16 SCSICommandType = 0x8b
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WRITE_VERIFY_16 SCSICommandType = 0x8e
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VERIFY_16 SCSICommandType = 0x8f
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PRE_FETCH_16 SCSICommandType = 0x90
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SYNCHRONIZE_CACHE_16 SCSICommandType = 0x91
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WRITE_SAME_16 SCSICommandType = 0x93
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SERVICE_ACTION_IN SCSICommandType = 0x9e
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SAI_READ_CAPACITY_16 SCSICommandType = 0x10
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SAI_GET_LBA_STATUS SCSICommandType = 0x12
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REPORT_LUNS SCSICommandType = 0xa0
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MAINT_PROTOCOL_IN SCSICommandType = 0xa3
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MOVE_MEDIUM SCSICommandType = 0xa5
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EXCHANGE_MEDIUM SCSICommandType = 0xa6
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READ_12 SCSICommandType = 0xa8
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WRITE_12 SCSICommandType = 0xaa
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GET_PERFORMACE SCSICommandType = 0xac
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READ_DVD_STRUCTURE SCSICommandType = 0xad
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WRITE_VERIFY_12 SCSICommandType = 0xae
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VERIFY_12 SCSICommandType = 0xaf
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SEARCH_HIGH_12 SCSICommandType = 0xb0
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SEARCH_EQUAL_12 SCSICommandType = 0xb1
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SEARCH_LOW_12 SCSICommandType = 0xb2
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READ_ELEMENT_STATUS SCSICommandType = 0xb8
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SEND_VOLUME_TAG SCSICommandType = 0xb6
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SET_STREAMING SCSICommandType = 0xb6
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SET_CD_SPEED SCSICommandType = 0xbb
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WRITE_LONG_2 SCSICommandType = 0xea
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)
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type SCSIPRServiceAction byte
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type SCSIPRType byte
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var (
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/* PERSISTENT_RESERVE_IN service action codes */
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PR_IN_READ_KEYS SCSIPRServiceAction = 0x00
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PR_IN_READ_RESERVATION SCSIPRServiceAction = 0x01
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PR_IN_REPORT_CAPABILITIES SCSIPRServiceAction = 0x02
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PR_IN_READ_FULL_STATUS SCSIPRServiceAction = 0x03
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/* PERSISTENT_RESERVE_OUT service action codes */
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PR_OUT_REGISTER SCSIPRServiceAction = 0x00
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PR_OUT_RESERVE SCSIPRServiceAction = 0x01
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PR_OUT_RELEASE SCSIPRServiceAction = 0x02
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PR_OUT_CLEAR SCSIPRServiceAction = 0x03
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PR_OUT_PREEMPT SCSIPRServiceAction = 0x04
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PR_OUT_PREEMPT_AND_ABORT SCSIPRServiceAction = 0x05
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PR_OUT_REGISTER_AND_IGNORE_EXISTING_KEY SCSIPRServiceAction = 0x06
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PR_OUT_REGISTER_AND_MOVE SCSIPRServiceAction = 0x07
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/* Persistent Reservation scope */
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PR_LU_SCOPE byte = 0x00
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/* Persistent Reservation Type Mask format */
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PR_TYPE_WRITE_EXCLUSIVE SCSIPRType = 0x01
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PR_TYPE_EXCLUSIVE_ACCESS SCSIPRType = 0x03
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PR_TYPE_WRITE_EXCLUSIVE_REGONLY SCSIPRType = 0x05
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PR_TYPE_EXCLUSIVE_ACCESS_REGONLY SCSIPRType = 0x06
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PR_TYPE_WRITE_EXCLUSIVE_ALLREG SCSIPRType = 0x07
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PR_TYPE_EXCLUSIVE_ACCESS_ALLREG SCSIPRType = 0x08
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)
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type SCSIDataDirection int
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const (
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SCSIDataNone = iota
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SCSIDataWrite
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SCSIDataRead
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SCSIDataBidirection
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)
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type SCSIDataBuffer struct {
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Buffer uint64
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Length uint64
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TransferLength uint32
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Resid int32
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}
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type SCSICommand struct {
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Target *SCSITarget
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DeviceID uint64
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Device *SCSILu
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State uint64
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Direction SCSIDataDirection
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InSDBBuffer *SCSIDataBuffer
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OutSDBBuffer *SCSIDataBuffer
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// Command ITN ID
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CommandITNID uint64
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Offset uint64
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TL uint32
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SCB *[]byte
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SCBLength int
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Lun []uint8
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Attribute int
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Tag uint64
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Result int
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SenseBuffer []byte
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SenseLength int
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}
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