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This commit is contained in:
Lei Xue
2016-11-24 21:02:17 +08:00
parent 35765e7f4d
commit f4197d0024
6 changed files with 305 additions and 221 deletions
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217
pkg/scsi/spc.go
View File

@@ -27,171 +27,6 @@ import (
"github.com/gostor/gotgt/pkg/util"
)
/*
* Protocol Identifier Values
*
* 0 Fibre Channel (FCP-2)
* 1 Parallel SCSI (SPI-5)
* 2 SSA (SSA-S3P)
* 3 IEEE 1394 (SBP-3)
* 4 SCSI Remote Direct Memory Access (SRP)
* 5 iSCSI
* 6 SAS Serial SCSI Protocol (SAS)
* 7 Automation/Drive Interface (ADT)
* 8 AT Attachment Interface (ATA/ATAPI-7)
*/
const (
PIV_FCP = byte(0x00)
PIV_SPI = byte(0x01)
PIV_S3P = byte(0x02)
PIV_SBP = byte(0x03)
PIV_SRP = byte(0x04)
PIV_ISCSI = byte(0x05)
PIV_SAS = byte(0x06)
PIV_ADT = byte(0x07)
PIV_ATA = byte(0x08)
PIV_USB = byte(0x09)
PIV_SOP = byte(0x0A)
)
const (
VERSION_NOT_CLAIM = byte(0x00)
VERSION_WITHDRAW_STANDARD = byte(0x03)
VERSION_WITHDRAW_SPC2 = byte(0x04)
VERSION_WITHDRAW_SPC3 = byte(0x05)
)
/*
* Code Set
*
* 1 - Designator fild contains binary values
* 2 - Designator field contains ASCII printable chars
* 3 - Designaotor field contains UTF-8
*/
const (
INQ_CODE_BIN = byte(1)
INQ_CODE_ASCII = byte(2)
INQ_CODE_UTF8 = byte(3)
)
/*
* Association field
*
* 00b - Associated with Logical Unit
* 01b - Associated with target port
* 10b - Associated with SCSI Target device
* 11b - Reserved
*/
const (
ASS_LU = byte(0x00)
ASS_TGT_PORT = byte(0x01)
ASS_TGT_DEV = byte(0x02)
)
/*
* Table 177 — PERIPHERAL QUALIFIER field
* Qualifier Description
* 000b - A peripheral device having the indicated peripheral
* device type is connected to this logical unit. If the device server is
* unable to determine whether or not a peripheral device is connected,
* then the device server also shall use this peripheral qualifier.
* This peripheral qualifier does not indicate that the peripheral
* device connected to the logical unit is ready for access.
* 001b - A peripheral device having the indicated peripheral device type
* is not connected to this logical unit. However, the device server is capable of
* supporting the indicated peripheral device type on this logical unit.
* 010b - Reserved
* 011b - The device server is not capable of supporting a
* peripheral device on this logical unit. For this peripheral
* qualifier the peripheral device type shall be set to 1Fh. All other peripheral
* device type values are reserved for this peripheral qualifier.
* 100b to 111b Vendor specific
*/
const (
PQ_DEVICE_CONNECTED = byte(0x00 << 5)
PQ_DEVICE_NOT_CONNECT = byte(0x01 << 5)
PQ_RESERVED = byte(0x02 << 5)
PQ_NOT_SUPPORT = byte(0x03 << 5)
)
const (
INQUIRY_SCCS = byte(0x80)
INQUIRY_AAC = byte(0x40)
INQUIRY_TPGS_NO = byte(0x00)
INQUIRY_TPGS_IMPLICIT = byte(0x10)
INQUIRY_TPGS_EXPLICIT = byte(0x20)
INQUIRY_TPGS_BOTH = byte(0x30)
INQUIRY_3PC = byte(0x08)
INQUIRY_Reserved = byte(0x06)
INQUIRY_PROTECT = byte(0x01)
INQUIRY_NORM_ACA = byte(0x20)
INQUIRY_HISUP = byte(0x10)
INQUIRY_STANDARD_FORMAT = byte(0x02)
INQUIRY_ENCSERV = byte(0x40)
INQUIRY_VS0 = byte(0x20)
INQUIRY_MULTIP = byte(0x10)
INQUIRY_ADDR16 = byte(0x01)
INQUIRY_WBUS16 = byte(0x20)
INQUIRY_SYNC = byte(0x10)
INQUIRY_CMDQUE = byte(0x02)
INQUIRY_VS1 = byte(0x01)
INQUIRY_QAS = byte(0x02)
INQUIRY_IUS = byte(0x01)
)
const (
ADDRESS_METHOD_PERIPHERAL_DEVICE = byte(0x00)
ADDRESS_METHOD_FLAT_SPACE = byte(0x01)
ADDRESS_METHOD_LOGICAL_UNIT = byte(0x02)
ADDRESS_METHOD_EXTENDED_LOGICAL_UNIT = byte(0x03)
)
/*
* Designator type - SPC-4 Reference
*
* 0 - Vendor specific - 7.6.3.3
* 1 - T10 vendor ID - 7.6.3.4
* 2 - EUI-64 - 7.6.3.5
* 3 - NAA - 7.6.3.6
* 4 - Relative Target port identifier - 7.6.3.7
* 5 - Target Port group - 7.6.3.8
* 6 - Logical Unit group - 7.6.3.9
* 7 - MD5 logical unit identifier - 7.6.3.10
* 8 - SCSI name string - 7.6.3.11
*/
const (
DESG_VENDOR = iota
DESG_T10
DESG_EUI64
DESG_NAA
DESG_REL_TGT_PORT
DESG_TGT_PORT_GRP
DESG_LU_GRP
DESG_MD5
DESG_SCSI
)
const (
NAA_IEEE_EXTD = byte(0x2)
NAA_LOCAL = byte(0x3)
NAA_IEEE_REGD = byte(0x5)
NAA_IEEE_REGD_EXTD = byte(0x6)
)
const (
SCSI_VendorID = "GOSTOR"
SCSI_ProductID = "GOTGT"
)
func SPCIllegalOp(host int, cmd *api.SCSICommand) api.SAMStat {
BuildSenseData(cmd, ILLEGAL_REQUEST, ASC_INVALID_FIELD_IN_CDB)
return api.SAMStatCheckCondition
@@ -360,6 +195,13 @@ func InquiryPage0x83(host int, cmd *api.SCSICommand) (*bytes.Buffer, uint16) {
return buf, pageLength
}
/*
* SPCInquiry Implements SCSI INQUIRY command
* The INQUIRY command requests the device server to return information regarding the logical unit and SCSI target device.
*
* Reference : SPC4r11
* 6.6 - INQUIRY
*/
func SPCInquiry(host int, cmd *api.SCSICommand) api.SAMStat {
var (
allocationLength uint16
@@ -478,6 +320,14 @@ sense:
return api.SAMStatCheckCondition
}
/*
* SPCReportLuns Implements SCSI REPORT LUNS command
* The REPORT LUNS command requests the device server to return the peripheral Device
* logical unit inventory accessible to the I_T nexus.
*
* Reference : SPC4r11
* 6.33 - REPORT LUNS
*/
func SPCReportLuns(host int, cmd *api.SCSICommand) api.SAMStat {
var (
remainLength uint32
@@ -576,6 +426,13 @@ func SPCStartStop(host int, cmd *api.SCSICommand) api.SAMStat {
return api.SAMStatGood
}
/*
* SPCTestUnit Implements SCSI TEST UNIT READY command
* The TEST UNIT READY command requests the device server to indicate whether the logical unit is ready.
*
* Reference : SPC4r11
* 6.47 - TEST UNIT READY
*/
func SPCTestUnit(host int, cmd *api.SCSICommand) api.SAMStat {
/*
if err := deviceReserve(cmd); err != nil {
@@ -603,10 +460,15 @@ func SPCPreventAllowMediaRemoval(host int, cmd *api.SCSICommand) api.SAMStat {
return api.SAMStatGood
}
// SPCModeSense Implement SCSI op MODE SENSE(6) and MODE SENSE(10)
// Reference : SPC4r11
// 6.11 - MODE SENSE(6)
// 6.12 - MODE SENSE(10)
/*
* SPCModeSense Implement SCSI MODE SENSE(6) and MODE SENSE(10) command
* The MODE SENSE command requests the device server to return the specified medium,
* logical unit, or peripheral device parameters.
*
* Reference : SPC4r11
* 6.11 - MODE SENSE(6)
* 6.12 - MODE SENSE(10)
*/
func SPCModeSense(host int, cmd *api.SCSICommand) api.SAMStat {
var (
scb = cmd.SCB.Bytes()
@@ -637,6 +499,14 @@ sense:
return api.SAMStatCheckCondition
}
/*
* SPCSendDiagnostics Implements SCSI SEND DIAGNOSTIC command
* The SEND DIAGNOSTIC command requests the device server to perform diagnostic operations
* on the SCSI target device, on the logical unit, or on both.
*
* Reference : SPC4r11
* 6.42 - SEND DIAGNOSTIC
*/
func SPCSendDiagnostics(host int, cmd *api.SCSICommand) api.SAMStat {
// we only support SELF-TEST==1
if cmd.SCB.Bytes()[1]&0x04 == 0 {
@@ -826,6 +696,13 @@ func SPCPRRegisterAndMove(host int, cmd *api.SCSICommand) api.SAMStat {
return api.SAMStatGood
}
/*
* SPCRequestSense Implements SCSI REQUEST SENSE command
* The REQUEST SENSE command requests the device server to return parameter data that contains sense data.
*
* Reference : SPC4r11
* 6.39 - REQUEST SENSE
*/
func SPCRequestSense(host int, cmd *api.SCSICommand) api.SAMStat {
var (
allocationLength uint32
@@ -844,7 +721,7 @@ func SPCRequestSense(host int, cmd *api.SCSICommand) api.SAMStat {
actualLength = allocationLength
}
if cmd.SenseBuffer != nil {
data.Write(cmd.SenseBuffer.Bytes()[0:actualLength])
data.Write(cmd.SenseBuffer.Bytes()[:actualLength])
}
cmd.InSDBBuffer.Resid = int32(actualLength)
cmd.InSDBBuffer.Buffer = data