init commit for spc/sbc

pkg/scsi/lun.go

@@ -16,14 +16,58 @@ limitations under the License.
 
 package scsi
 
-type SCSILu struct {
-	FD         int
-	Address    uint64
-	Size       uint64
-	Lun        uint64
-	Path       string
-	BsoFlags   int
-	BlockShift uint
-	ReserveID  uint64
-	Target     *SCSITarget
+type SCSILuPhyAttribute struct {
+	SCSIID          string
+	SCSISN          string
+	NumID           uint64
+	VendorID        string
+	ProductID       string
+	ProductRev      string
+	VersionDesction []uint16
+	// Peripheral device type
+	DeviceType uint
+	// Peripheral Qualifier
+	Qualifier bool
+	// Removable media
+	Removable bool
+	// Read Only media
+	Readonly bool
+	// Software Write Protect
+	SWP bool
+	// Use thin-provisioning for this LUN
+	Thinprovisioning bool
+	// Logical Unit online
+	Online bool
+	// Descrptor format sense data supported
+	SenseFormat bool
+	// Logical blocks per physical block exponent
+	Lbppbe int
+	// Do not update it automatically when the backing file changes
+	NoLbppbe int
+	// Lowest aligned LBA
+	LowestAlignedLBA int
+}
+
+type SCSILu struct {
+	FD             int
+	Address        uint64
+	Size           uint64
+	Lun            uint64
+	Path           string
+	BsoFlags       int
+	BlockShift     uint
+	ReserveID      uint64
+	DeviceProtocol SCSIDeviceProtocol
+	Storage        *BackingStore
+	Target         *SCSITarget
+	Attrs          SCSILuPhyAttribute
+
+	// function handler for command performing and finishing
+	PerformCommand CommandFunc
+	FinishCommand  func(*SCSITarget, *SCSICommand)
+}
+
+func luPreventRemoval(lu *SCSILu) bool {
+	// TODO
+	return false
 }