remove unnecessary code and doc

README.md

@@ -62,9 +62,6 @@ You can test this with [open-iscsi](http://www.open-iscsi.com/) or [libiscsi](ht
 * SCSI Command Queue (p2)
 * More SCSI commands
 	* SPC3/SAM2
-	* Page83(Inquiry) (orzhang, p1)
-	* Page0 (Inquiry) (orzhang, p1)
-	* Define Device UUID
 	* Verify (carmark, p1)
 	* Support `Target Group` and `Target Port` (p3)
 * Refactor (carmark, p1)

pkg/port/iscsit/cmd.go

@@ -67,18 +67,27 @@ type ISCSICommand struct {
 	ExpCmdSN, MaxCmdSN uint32
 	AHSLen             int
 
-	ConnID    uint16 // Connection ID.
-	CmdSN     uint32 // Command serial number.
-	ExpStatSN uint32 // Expected status serial.
+	// Connection ID.
+	ConnID uint16
+	// Command serial number.
+	CmdSN uint32
+	// Expected status serial.
+	ExpStatSN uint32
 
 	Read, Write bool
 	LUN         [8]uint8
-	Transit     bool   // Transit bit.
-	Cont        bool   // Continue bit.
-	CSG, NSG    Stage  // Current Stage, Next Stage.
-	ISID        uint64 // Initiator part of the SSID.
-	TSIH        uint16 // Target-assigned Session Identifying Handle.
-	StatSN      uint32 // Status serial number.
+	// Transit bit.
+	Transit bool
+	// Continue bit.
+	Cont bool
+	// Current Stage, Next Stage.
+	CSG, NSG Stage
+	// Initiator part of the SSID.
+	ISID uint64
+	// Target-assigned Session Identifying Handle.
+	TSIH uint16
+	// Status serial number.
+	StatSN uint32
 
 	// For login response.
 	StatusClass  uint8

pkg/port/iscsit/iscsit.go

@@ -70,15 +70,18 @@ type ISCSIRedirectInfo struct {
 }
 
 type iSCSITPGT struct {
-	TPGT    uint16 /* Mapping to SCSI Reltive Target Port ID */
+	// Mapping to SCSI Reltive Target Port ID
+	TPGT    uint16
 	Portals map[string]struct{}
 }
 
 type ISCSITarget struct {
 	api.SCSITarget
 	api.SCSITargetDriverCommon
-	TPGTs        map[uint16]*iSCSITPGT    /* Key is a TPGT number */
-	Sessions     map[uint16]*ISCSISession /* Key is an TSIH */
+	// TPGT number is the key
+	TPGTs map[uint16]*iSCSITPGT
+	// TSIH is the key
+	Sessions     map[uint16]*ISCSISession
 	SessionParam []ISCSISessionParam
 	Alias        string
 	MaxSessions  int

pkg/port/iscsit/portal.go

@@ -1,25 +0,0 @@
-/*
-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.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package iscsit
-
-type ISCSIPortal struct {
-	Address string
-	Port    int
-	Tpgt    int
-	Fd      int
-	Af      int
-}

pkg/port/iscsit/session.go

@@ -192,31 +192,6 @@ func (tq *taskQueue) Pop() interface{} {
 	return item
 }
 
-// The BHS is 48 bytes long.  The Opcode and DataSegmentLength fields
-// appear in all iSCSI PDUs.  In addition, when used, the Initiator Task
-// Tag and Logical Unit Number always appear in the same location in the
-// header.
-type iscsiHeader struct {
-	opcode    uint8
-	flags     uint8 // Final bit
-	rsvd2     [2]uint8
-	hlength   uint8    // AHSs total length
-	dlength   [3]uint8 // Data length
-	lun       [8]uint8
-	itt       uint8 // Initiator Task Tag
-	ttt       uint8 // Target Task Tag
-	statsn    uint8
-	expStatSN uint8
-	maxStatSN uint8
-	other     [12]uint8
-}
-
-type iscsiPdu struct {
-	bhs      iscsiHeader
-	ahsSize  uint
-	dataSize uint
-}
-
 // New creates a new session.
 func (s *ISCSITargetDriver) NewISCSISession(conn *iscsiConnection, isid uint64) (*ISCSISession, error) {
 	var (

pkg/scsi/cmd.go

@@ -153,7 +153,6 @@ const (
  * 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)

pkg/scsi/lun.go

@@ -87,7 +87,7 @@ func luPerformCommand(tid int, cmd *api.SCSICommand) api.SAMStat {
 	fn := cmd.Device.DeviceProtocol.PerformCommand(op)
 	if fn != nil {
 		fnop := fn.(SCSIDeviceOperation)
-		// host := cmd.ITNexus.Host
+		// TODO host := cmd.ITNexus.Host
 		host := 0
 		return fnop.CommandPerformFunc(host, cmd)
 	}

pkg/scsi/scsi_pr.go

@@ -1,3 +1,19 @@
+/*
+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.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
 package scsi
 
 import (

pkg/scsi/scsilumap.go

@@ -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.
@@ -28,9 +28,11 @@ import (
 type BackendType string
 
 type SCSILUMap struct {
-	mutex         sync.RWMutex
-	AllDevices    api.LUNMap            /* use UUID as the key for all LUs*/
-	TargetsLUNMap map[string]api.LUNMap /* use target name as the key for target's LUN map*/
+	mutex sync.RWMutex
+	// use UUID as the key for all LUs
+	AllDevices api.LUNMap
+	// use target name as the key for target's LUN map
+	TargetsLUNMap map[string]api.LUNMap
 }
 
 var globalSCSILUMap = SCSILUMap{AllDevices: make(api.LUNMap), TargetsLUNMap: make(map[string]api.LUNMap)}
@@ -85,7 +87,7 @@ func InitSCSILUMap(config *config.Config) error {
 				return errors.New("LU Number must be a number")
 			}
 			mappingLUN(deviceID, lun, tgtName)
-			//Init SCSISimpleReservationOperator
+			// Init SCSISimpleReservationOperator
 			op := GetSCSIReservationOperator()
 			if simpleOp, ok = op.(*SCSISimpleReservationOperator); ok {
 				simpleOp.InitLUReservation(tgtName, deviceID)

pkg/scsi/target.go

@@ -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.