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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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84
pkg/scsi/sbc.go
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@@ -1,5 +1,5 @@
/*
Copyright 2015 The GoStor Authors All rights reserved.
Copyright 2016 The GoStor Authors All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -54,8 +54,8 @@ func (sbc SBCSCSIDeviceProtocol) InitLu(lu *api.SCSILu) error {
lu.Attrs.Readonly = false
lu.Attrs.SWP = false
lu.Attrs.SenseFormat = false
lu.Attrs.VendorID = SCSI_VendorID
lu.Attrs.ProductID = SCSI_ProductID
lu.Attrs.VendorID = SCSIVendorID
lu.Attrs.ProductID = SCSIProductID
lu.Attrs.ProductRev = version.SCSI_VERSION
/*
@@ -216,11 +216,17 @@ func SBCModeSense(host int, cmd *api.SCSICommand) api.SAMStat {
return api.SAMStatGood
}
// The FORMAT UNIT command requests that the device server format the medium into application client
// accessible logical blocks as specified in the number of blocks and block length values received
// in the last mode parameter block descriptor in a MODE SELECT command (see SPC-3). In addition,
// the device server may certify the medium and create control structures for the management of the medium and defects.
// The degree that the medium is altered by this command is vendor-specific.
/*
* SBCFormatUnit Implements SCSI FORMAT UNIT command
* The FORMAT UNIT command requests that the device server format the medium into application client
* accessible logical blocks as specified in the number of blocks and block length values received
* in the last mode parameter block descriptor in a MODE SELECT command (see SPC-3). In addition,
* the device server may certify the medium and create control structures for the management of the medium and defects.
* The degree that the medium is altered by this command is vendor-specific.
*
* Reference : SBC2r16
* 5.2 - FORMAT UNIT
*/
func SBCFormatUnit(host int, cmd *api.SCSICommand) api.SAMStat {
var (
key = ILLEGAL_REQUEST
@@ -266,6 +272,24 @@ func SBCUnmap(host int, cmd *api.SCSICommand) api.SAMStat {
return api.SAMStatGood
}
/*
* SBCReadWrite Implements SCSI READ(10/12/16), WRITE(10/12/16), WRITE AND VERIFY(10/12/16), WRITE SAME(10/12/16)
* The READ command requests that the device server read the specified logical block(s) and transfer them to the data-in buffer.
* The WRITE command requests that the device server transfer the specified logical block(s) from the data-out buffer and write them.
* The WRITE AND VERIFY command requests that the device server transfer the specified logical block(s) from the data-out buffer,
* write them to the medium, and then verify that they are correctly written.
*
* Reference : SBC2r16
* 5.6 - READ (10)
* 5.7 - READ (12)
* 5.8 - READ (16)
* 5.25 - WRITE (10)
* 5.26 - WRITE (12)
* 5.27 - WRITE (16)
* 5.29 - WRITE AND VERIFY (10)
* 5.30 - WRITE AND VERIFY (12)
* 5.31 - WRITE AND VERIFY (16)
*/
func SBCReadWrite(host int, cmd *api.SCSICommand) api.SAMStat {
var (
key = ILLEGAL_REQUEST
@@ -414,11 +438,17 @@ func SBCRelease(host int, cmd *api.SCSICommand) api.SAMStat {
return api.SAMStatGood
}
// The READ CAPACITY (10) command requests that the device server transfer 8 bytes of parameter data
// describing the capacity and medium format of the direct-access block device to the data-in buffer.
// This command may be processed as if it has a HEAD OF QUEUE task attribute. If the logical unit supports
// protection information, the application client should use the READ CAPACITY (16) command instead of
// the READ CAPACITY (10) command.
/*
* SBCReadCapacity Implements SCSI READ CAPACITY(10) command
* The READ CAPACITY (10) command requests that the device server transfer 8 bytes of parameter data
* describing the capacity and medium format of the direct-access block device to the data-in buffer.
* This command may be processed as if it has a HEAD OF QUEUE task attribute. If the logical unit supports
* protection information, the application client should use the READ CAPACITY (16) command instead of
* the READ CAPACITY (10) command.
*
* Reference : SBC2r16
* 5.10 - READ CAPACITY(10)
*/
func SBCReadCapacity(host int, cmd *api.SCSICommand) api.SAMStat {
var (
scb = cmd.SCB.Bytes()
@@ -465,7 +495,12 @@ sense:
return api.SAMStatCheckCondition
}
// The VERIFY (10) command requests that the device server verify the specified logical block(s) on the medium.
/* SBCVerify Implements SCSI VERIFY(10) command
* The VERIFY (10) command requests that the device server verify the specified logical block(s) on the medium.
*
* Reference : SBC2r16
* 5.20 - VERIFY(10)
*/
func SBCVerify(host int, cmd *api.SCSICommand) api.SAMStat {
var (
key = ILLEGAL_REQUEST
@@ -495,6 +530,14 @@ sense:
return api.SAMStatCheckCondition
}
/*
* SBCReadCapacity16 Implements SCSI READ CAPACITY(16) command
* The READ CAPACITY (16) command requests that the device server transfer parameter data
* describing the capacity and medium format of the direct-access block device to the data-in buffer.
*
* Reference : SBC2r16
* 5.11 - READ CAPACITY(16)
*/
func SBCReadCapacity16(host int, cmd *api.SCSICommand) api.SAMStat {
var (
data = &bytes.Buffer{}
@@ -526,9 +569,16 @@ func SBCServiceAction(host int, cmd *api.SCSICommand) api.SAMStat {
return api.SAMStatGood
}
// The SYNCHRONIZE CACHE (10) command requests that the device server ensure that
// the specified logical blocks have their most recent data values recorded in
// non-volatile cache and/or on the medium, based on the SYNC_NV bit.
/*
* SBCSyncCache Implements SCSI SYNCHRONIZE CACHE(10) and SYNCHRONIZE CACHE(16) command
* The SYNCHRONIZE CACHE command requests that the device server ensure that
* the specified logical blocks have their most recent data values recorded in
* non-volatile cache and/or on the medium, based on the SYNC_NV bit.
*
* Reference : SBC2r16
* 5.18 - SYNCHRONIZE CACHE (10)
* 5.19 - SYNCHRONIZE CACHE (16)
*/
func SBCSyncCache(host int, cmd *api.SCSICommand) api.SAMStat {
return api.SAMStatGood
}