VOL-1558 Update vendored voltha-go and other items

Result of running dep ensure.  golang openolt now
builds.

Also update dockerfile to used specific alpine version

Change-Id: I1e5407e25bb0636a241a0650d1e44e5df567f44b
diff --git a/vendor/github.com/opencord/voltha-go/common/techprofile/tech_profile.go b/vendor/github.com/opencord/voltha-go/common/techprofile/tech_profile.go
new file mode 100644
index 0000000..2a256e9
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-go/common/techprofile/tech_profile.go
@@ -0,0 +1,580 @@
+/*
+ * Copyright 2019-present Open Networking Foundation
+
+ * 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 techprofile
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"strconv"
+
+	"github.com/opencord/voltha-go/common/log"
+	"github.com/opencord/voltha-go/db/kvstore"
+	"github.com/opencord/voltha-go/db/model"
+	openolt_pb "github.com/opencord/voltha-protos/go/openolt"
+)
+
+// Interface to pon resource manager APIs
+type iPonResourceMgr interface {
+	GetResourceID(IntfID uint32, ResourceType string, NumIDs uint32) ([]uint32, error)
+	GetResourceTypeAllocID() string
+	GetResourceTypeGemPortID() string
+	GetTechnology() string
+}
+
+type Direction int32
+
+const (
+	Direction_UPSTREAM      Direction = 0
+	Direction_DOWNSTREAM    Direction = 1
+	Direction_BIDIRECTIONAL Direction = 2
+)
+
+var Direction_name = map[Direction]string{
+	0: "UPSTREAM",
+	1: "DOWNSTREAM",
+	2: "BIDIRECTIONAL",
+}
+
+type SchedulingPolicy int32
+
+const (
+	SchedulingPolicy_WRR            SchedulingPolicy = 0
+	SchedulingPolicy_StrictPriority SchedulingPolicy = 1
+	SchedulingPolicy_Hybrid         SchedulingPolicy = 2
+)
+
+var SchedulingPolicy_name = map[SchedulingPolicy]string{
+	0: "WRR",
+	1: "StrictPriority",
+	2: "Hybrid",
+}
+
+type AdditionalBW int32
+
+const (
+	AdditionalBW_AdditionalBW_None       AdditionalBW = 0
+	AdditionalBW_AdditionalBW_NA         AdditionalBW = 1
+	AdditionalBW_AdditionalBW_BestEffort AdditionalBW = 2
+	AdditionalBW_AdditionalBW_Auto       AdditionalBW = 3
+)
+
+var AdditionalBW_name = map[AdditionalBW]string{
+	0: "AdditionalBW_None",
+	1: "AdditionalBW_NA",
+	2: "AdditionalBW_BestEffort",
+	3: "AdditionalBW_Auto",
+}
+
+type DiscardPolicy int32
+
+const (
+	DiscardPolicy_TailDrop  DiscardPolicy = 0
+	DiscardPolicy_WTailDrop DiscardPolicy = 1
+	DiscardPolicy_Red       DiscardPolicy = 2
+	DiscardPolicy_WRed      DiscardPolicy = 3
+)
+
+var DiscardPolicy_name = map[DiscardPolicy]string{
+	0: "TailDrop",
+	1: "WTailDrop",
+	2: "Red",
+	3: "WRed",
+}
+
+/*
+type InferredAdditionBWIndication int32
+
+const (
+	InferredAdditionBWIndication_InferredAdditionBWIndication_None       InferredAdditionBWIndication = 0
+	InferredAdditionBWIndication_InferredAdditionBWIndication_Assured    InferredAdditionBWIndication = 1
+	InferredAdditionBWIndication_InferredAdditionBWIndication_BestEffort InferredAdditionBWIndication = 2
+)
+
+var InferredAdditionBWIndication_name = map[int32]string{
+	0: "InferredAdditionBWIndication_None",
+	1: "InferredAdditionBWIndication_Assured",
+	2: "InferredAdditionBWIndication_BestEffort",
+}
+*/
+// instance control defaults
+const (
+	defaultOnuInstance    = "multi-instance"
+	defaultUniInstance    = "single-instance"
+	defaultNumGemPorts    = 1
+	defaultGemPayloadSize = "auto"
+)
+
+const MAX_GEM_PAYLOAD = "max_gem_payload_size"
+
+type InstanceControl struct {
+	Onu               string `json:ONU"`
+	Uni               string `json:"uni"`
+	MaxGemPayloadSize string `json:"max_gem_payload_size"`
+}
+
+// default discard config constants
+const (
+	defaultMinThreshold   = 0
+	defaultMaxThreshold   = 0
+	defaultMaxProbability = 0
+)
+
+type DiscardConfig struct {
+	MinThreshold   int `json:"min_threshold"`
+	MaxThreshold   int `json:"max_threshold"`
+	MaxProbability int `json:"max_probability"`
+}
+
+// default scheduler contants
+const (
+	defaultAddtionalBw      = AdditionalBW_AdditionalBW_Auto
+	defaultPriority         = 0
+	defaultWeight           = 0
+	defaultQueueSchedPolicy = SchedulingPolicy_Hybrid
+)
+
+type Scheduler struct {
+	Direction    string `json:"direction"`
+	AdditionalBw string `json:"additional_bw"`
+	Priority     uint32 `json:"priority"`
+	Weight       uint32 `json:"weight"`
+	QSchedPolicy string `json:"q_sched_policy"`
+}
+
+// default GEM attribute constants
+const (
+	defaultAESEncryption  = "True"
+	defaultPriorityQueue  = 0
+	defaultQueueWeight    = 0
+	defaultMaxQueueSize   = "auto"
+	defaultdropPolicy     = DiscardPolicy_TailDrop
+	defaultSchedulePolicy = SchedulingPolicy_WRR
+)
+
+type GemPortAttribute struct {
+	MaxQueueSize     string        `json:"max_q_size"`
+	PbitMap          string        `json:"pbit_map"`
+	AesEncryption    string        `json:"aes_encryption"`
+	SchedulingPolicy string        `json:"scheduling_policy"`
+	PriorityQueue    int           `json:"priority_q"`
+	Weight           int           `json:"weight"`
+	DiscardPolicy    string        `json:"discard_policy"`
+	DiscardConfig    DiscardConfig `json:"discard_config"`
+}
+
+type iScheduler struct {
+	AllocID   uint32    `json:"alloc_id"`
+	Scheduler Scheduler `json:"scheduler"`
+}
+type iGemPortAttribute struct {
+	GemportID    uint32           `json:"gem_port_id"`
+	GemAttribute GemPortAttribute `json:"gem_attribute"`
+}
+
+type TechProfileMgr struct {
+	config      *TechProfileFlags
+	resourceMgr iPonResourceMgr
+}
+type DefaultTechProfile struct {
+	Name                           string             `json:"name"`
+	ProfileType                    string             `json:"profile_type"`
+	Version                        int                `json:"version"`
+	NumGemPorts                    uint32             `json:"num_gem_ports"`
+	InstanceCtrl                   InstanceControl    `json:"instance_control"`
+	UsScheduler                    Scheduler          `json:"us_scheduler"`
+	DsScheduler                    Scheduler          `json:"ds_scheduler"`
+	UpstreamGemPortAttributeList   []GemPortAttribute `json:"upstream_gem_port_attribute_list"`
+	DownstreamGemPortAttributeList []GemPortAttribute `json:"downstream_gem_port_attribute_list"`
+}
+type TechProfile struct {
+	Name                           string              `json:"name"`
+	SubscriberIdentifier           string              `json:"subscriber_identifier"`
+	ProfileType                    string              `json:"profile_type"`
+	Version                        int                 `json:"version"`
+	NumGemPorts                    uint32              `json:"num_gem_ports"`
+	NumTconts                      uint32              `json:"num_tconts"`
+	InstanceCtrl                   InstanceControl     `json:"instance_control"`
+	UsScheduler                    iScheduler          `json:"us_scheduler"`
+	DsScheduler                    iScheduler          `json:"ds_scheduler"`
+	UpstreamGemPortAttributeList   []iGemPortAttribute `json:"upstream_gem_port_attribute_list"`
+	DownstreamGemPortAttributeList []iGemPortAttribute `json:"downstream_gem_port_attribute_list"`
+}
+
+func (t *TechProfileMgr) SetKVClient() *model.Backend {
+	addr := t.config.KVStoreHost + ":" + strconv.Itoa(t.config.KVStorePort)
+	kvClient, err := newKVClient(t.config.KVStoreType, addr, t.config.KVStoreTimeout)
+	if err != nil {
+		log.Errorw("failed-to-create-kv-client",
+			log.Fields{
+				"type": t.config.KVStoreType, "host": t.config.KVStoreHost, "port": t.config.KVStorePort,
+				"timeout": t.config.KVStoreTimeout, "prefix": t.config.TPKVPathPrefix,
+				"error": err.Error(),
+			})
+		return nil
+	}
+	return &model.Backend{
+		Client:     kvClient,
+		StoreType:  t.config.KVStoreType,
+		Host:       t.config.KVStoreHost,
+		Port:       t.config.KVStorePort,
+		Timeout:    t.config.KVStoreTimeout,
+		PathPrefix: t.config.TPKVPathPrefix}
+
+	/* TODO : Make sure direct call to NewBackend is working fine with backend , currently there is some
+	            issue between kv store and backend , core is not calling NewBackend directly
+		   kv := model.NewBackend(t.config.KVStoreType, t.config.KVStoreHost, t.config.KVStorePort,
+										t.config.KVStoreTimeout,  kvStoreTechProfilePathPrefix)
+	*/
+}
+
+func newKVClient(storeType string, address string, timeout int) (kvstore.Client, error) {
+
+	log.Infow("kv-store-type", log.Fields{"store": storeType})
+	switch storeType {
+	case "consul":
+		return kvstore.NewConsulClient(address, timeout)
+	case "etcd":
+		return kvstore.NewEtcdClient(address, timeout)
+	}
+	return nil, errors.New("unsupported-kv-store")
+}
+
+func NewTechProfile(resourceMgr iPonResourceMgr) (*TechProfileMgr, error) {
+	var techprofileObj TechProfileMgr
+	log.Debug("Initializing techprofile Manager")
+	techprofileObj.config = NewTechProfileFlags()
+	techprofileObj.config.KVBackend = techprofileObj.SetKVClient()
+	if techprofileObj.config.KVBackend == nil {
+		log.Error("Failed to initialize KV backend\n")
+		return nil, errors.New("KV backend init failed")
+	}
+	techprofileObj.resourceMgr = resourceMgr
+	log.Debug("Initializing techprofile object instance success")
+	return &techprofileObj, nil
+}
+
+func (t *TechProfileMgr) GetTechProfileInstanceKVPath(techProfiletblID uint32, uniPortName string) string {
+	return fmt.Sprintf(t.config.TPInstanceKVPath, t.resourceMgr.GetTechnology(), techProfiletblID, uniPortName)
+}
+
+func (t *TechProfileMgr) GetTPInstanceFromKVStore(techProfiletblID uint32, path string) (*TechProfile, error) {
+	var KvTpIns TechProfile
+	var resPtr *TechProfile = &KvTpIns
+	var err error
+	/*path := t.GetTechProfileInstanceKVPath(techProfiletblID, uniPortName)*/
+	log.Infow("Getting tech profile instance from KV store", log.Fields{"path": path})
+	kvresult, err := t.config.KVBackend.Get(path)
+	if err != nil {
+		log.Errorw("Error while fetching tech-profile instance  from KV backend", log.Fields{"key": path})
+		return nil, err
+	}
+	if kvresult == nil {
+		log.Infow("Tech profile does not exist in KV store", log.Fields{"key": path})
+		resPtr = nil
+	} else {
+		if value, err := kvstore.ToByte(kvresult.Value); err == nil {
+			if err = json.Unmarshal(value, resPtr); err != nil {
+				log.Errorw("Error while unmarshal KV result", log.Fields{"key": path, "value": value})
+			}
+		}
+	}
+	return resPtr, err
+}
+
+func (t *TechProfileMgr) addTechProfInstanceToKVStore(techProfiletblID uint32, uniPortName string, tpInstance *TechProfile) error {
+	path := t.GetTechProfileInstanceKVPath(techProfiletblID, uniPortName)
+	log.Debugw("Adding techprof instance to kvstore", log.Fields{"key": path, "tpinstance": tpInstance})
+	tpInstanceJson, err := json.Marshal(*tpInstance)
+	if err == nil {
+		// Backend will convert JSON byte array into string format
+		log.Debugw("Storing tech profile instance to KV Store", log.Fields{"key": path, "val": tpInstanceJson})
+		err = t.config.KVBackend.Put(path, tpInstanceJson)
+	} else {
+		log.Errorw("Error in marshaling into Json format", log.Fields{"key": path, "tpinstance": tpInstance})
+	}
+	return err
+}
+func (t *TechProfileMgr) getTPFromKVStore(techProfiletblID uint32) *DefaultTechProfile {
+	var kvtechprofile DefaultTechProfile
+	key := fmt.Sprintf(t.config.TPFileKVPath, t.resourceMgr.GetTechnology(), techProfiletblID)
+	log.Debugw("Getting techprofile from KV store", log.Fields{"techProfiletblID": techProfiletblID, "Key": key})
+	kvresult, err := t.config.KVBackend.Get(key)
+	if err != nil {
+		log.Errorw("Error while fetching value from KV store", log.Fields{"key": key})
+		return nil
+	}
+	if kvresult != nil {
+		/* Backend will return Value in string format,needs to be converted to []byte before unmarshal*/
+		if value, err := kvstore.ToByte(kvresult.Value); err == nil {
+			if err = json.Unmarshal(value, &kvtechprofile); err == nil {
+				log.Debugw("Success fetched techprofile from KV store", log.Fields{"techProfiletblID": techProfiletblID, "value": kvtechprofile})
+				return &kvtechprofile
+			}
+		}
+	}
+	return nil
+}
+func (t *TechProfileMgr) CreateTechProfInstance(techProfiletblID uint32, uniPortName string, intfId uint32) *TechProfile {
+	var tpInstance *TechProfile
+	log.Infow("Creating tech profile instance ", log.Fields{"tableid": techProfiletblID, "uni": uniPortName, "intId": intfId})
+	tp := t.getTPFromKVStore(techProfiletblID)
+	if tp != nil {
+		log.Infow("Creating tech profile instance with profile from KV store", log.Fields{"tpid": techProfiletblID})
+	} else {
+		tp = t.getDefaultTechProfile()
+		log.Infow("Creating tech profile instance with default values", log.Fields{"tpid": techProfiletblID})
+	}
+	tpInstance = t.allocateTPInstance(uniPortName, tp, intfId, t.config.DefaultNumTconts)
+	if err := t.addTechProfInstanceToKVStore(techProfiletblID, uniPortName, tpInstance); err != nil {
+		log.Errorw("Error in adding tech profile instance to KV ", log.Fields{"tableid": techProfiletblID, "uni": uniPortName})
+		return nil
+	}
+	log.Infow("Added tech profile instance to KV store successfully ",
+		log.Fields{"tpid": techProfiletblID, "uni": uniPortName, "intfId": intfId})
+	return tpInstance
+}
+
+func (t *TechProfileMgr) DeleteTechProfileInstance(techProfiletblID uint32, uniPortName string) error {
+	path := t.GetTechProfileInstanceKVPath(techProfiletblID, uniPortName)
+	return t.config.KVBackend.Delete(path)
+}
+
+func (t *TechProfileMgr) allocateTPInstance(uniPortName string, tp *DefaultTechProfile, intfId uint32, numOfTconts uint32) *TechProfile {
+
+	var usGemPortAttributeList []iGemPortAttribute
+	var dsGemPortAttributeList []iGemPortAttribute
+	var tcontIDs []uint32
+	var gemPorts []uint32
+	var err error
+
+	log.Infow("Allocating TechProfileMgr instance from techprofile template", log.Fields{"uniPortName": uniPortName, "intfId": intfId, "numOfTconts": numOfTconts, "numGem": tp.NumGemPorts})
+	if numOfTconts > 1 {
+		log.Errorw("Multiple Tconts not supported currently", log.Fields{"uniPortName": uniPortName, "intfId": intfId})
+		return nil
+	}
+	if tcontIDs, err = t.resourceMgr.GetResourceID(intfId, t.resourceMgr.GetResourceTypeAllocID(), numOfTconts); err != nil {
+		log.Errorw("Error getting alloc id from rsrcrMgr", log.Fields{"intfId": intfId, "numTconts": numOfTconts})
+		return nil
+	}
+	fmt.Println("Num GEM ports in TP:", tp.NumGemPorts)
+	if gemPorts, err = t.resourceMgr.GetResourceID(intfId, t.resourceMgr.GetResourceTypeGemPortID(), tp.NumGemPorts); err != nil {
+		log.Errorw("Error getting gemport ids from rsrcrMgr", log.Fields{"intfId": intfId, "numGemports": tp.NumGemPorts})
+		return nil
+	}
+	log.Infow("Allocated tconts and GEM ports successfully", log.Fields{"tconts": tcontIDs, "gemports": gemPorts})
+	for index := 0; index < int(tp.NumGemPorts); index++ {
+		usGemPortAttributeList = append(usGemPortAttributeList,
+			iGemPortAttribute{GemportID: gemPorts[index],
+				GemAttribute: tp.UpstreamGemPortAttributeList[index]})
+		dsGemPortAttributeList = append(dsGemPortAttributeList,
+			iGemPortAttribute{GemportID: gemPorts[index],
+				GemAttribute: tp.DownstreamGemPortAttributeList[index]})
+	}
+	return &TechProfile{
+		SubscriberIdentifier: uniPortName,
+		Name:                 tp.Name,
+		ProfileType:          tp.ProfileType,
+		Version:              tp.Version,
+		NumGemPorts:          tp.NumGemPorts,
+		NumTconts:            numOfTconts,
+		InstanceCtrl:         tp.InstanceCtrl,
+		UsScheduler: iScheduler{
+			AllocID:   tcontIDs[0],
+			Scheduler: tp.UsScheduler},
+		DsScheduler: iScheduler{
+			AllocID:   tcontIDs[0],
+			Scheduler: tp.DsScheduler},
+		UpstreamGemPortAttributeList:   usGemPortAttributeList,
+		DownstreamGemPortAttributeList: dsGemPortAttributeList}
+}
+
+func (t *TechProfileMgr) getDefaultTechProfile() *DefaultTechProfile {
+
+	var usGemPortAttributeList []GemPortAttribute
+	var dsGemPortAttributeList []GemPortAttribute
+
+	for _, pbit := range t.config.DefaultPbits {
+		usGemPortAttributeList = append(usGemPortAttributeList,
+			GemPortAttribute{
+				MaxQueueSize:     defaultMaxQueueSize,
+				PbitMap:          pbit,
+				AesEncryption:    defaultAESEncryption,
+				SchedulingPolicy: SchedulingPolicy_name[defaultSchedulePolicy],
+				PriorityQueue:    defaultPriorityQueue,
+				Weight:           defaultQueueWeight,
+				DiscardPolicy:    DiscardPolicy_name[defaultdropPolicy],
+				DiscardConfig: DiscardConfig{
+					MinThreshold:   defaultMinThreshold,
+					MaxThreshold:   defaultMaxThreshold,
+					MaxProbability: defaultMaxProbability}})
+		dsGemPortAttributeList = append(dsGemPortAttributeList,
+			GemPortAttribute{
+				MaxQueueSize:     defaultMaxQueueSize,
+				PbitMap:          pbit,
+				AesEncryption:    defaultAESEncryption,
+				SchedulingPolicy: SchedulingPolicy_name[defaultSchedulePolicy],
+				PriorityQueue:    defaultPriorityQueue,
+				Weight:           defaultQueueWeight,
+				DiscardPolicy:    DiscardPolicy_name[defaultdropPolicy],
+				DiscardConfig: DiscardConfig{
+					MinThreshold:   defaultMinThreshold,
+					MaxThreshold:   defaultMaxThreshold,
+					MaxProbability: defaultMaxProbability}})
+	}
+	return &DefaultTechProfile{
+		Name:        t.config.DefaultTPName,
+		ProfileType: t.resourceMgr.GetTechnology(),
+		Version:     t.config.TPVersion,
+		NumGemPorts: uint32(len(usGemPortAttributeList)),
+		InstanceCtrl: InstanceControl{
+			Onu:               defaultOnuInstance,
+			Uni:               defaultUniInstance,
+			MaxGemPayloadSize: defaultGemPayloadSize},
+		UsScheduler: Scheduler{
+			Direction:    Direction_name[Direction_UPSTREAM],
+			AdditionalBw: AdditionalBW_name[defaultAddtionalBw],
+			Priority:     defaultPriority,
+			Weight:       defaultWeight,
+			QSchedPolicy: SchedulingPolicy_name[defaultQueueSchedPolicy]},
+		DsScheduler: Scheduler{
+			Direction:    Direction_name[Direction_DOWNSTREAM],
+			AdditionalBw: AdditionalBW_name[defaultAddtionalBw],
+			Priority:     defaultPriority,
+			Weight:       defaultWeight,
+			QSchedPolicy: SchedulingPolicy_name[defaultQueueSchedPolicy]},
+		UpstreamGemPortAttributeList:   usGemPortAttributeList,
+		DownstreamGemPortAttributeList: dsGemPortAttributeList}
+}
+
+func (t *TechProfileMgr) GetprotoBufParamValue(paramType string, paramKey string) int32 {
+	var result int32 = -1
+
+	if paramType == "direction" {
+		for key, val := range openolt_pb.Direction_value {
+			if key == paramKey {
+				result = val
+			}
+		}
+	} else if paramType == "discard_policy" {
+		for key, val := range openolt_pb.DiscardPolicy_value {
+			if key == paramKey {
+				result = val
+			}
+		}
+	} else if paramType == "sched_policy" {
+		for key, val := range openolt_pb.SchedulingPolicy_value {
+			if key == paramKey {
+				log.Debugw("Got value in proto", log.Fields{"key": key, "value": val})
+				result = val
+			}
+		}
+	} else if paramType == "additional_bw" {
+		for key, val := range openolt_pb.AdditionalBW_value {
+			if key == paramKey {
+				result = val
+			}
+		}
+	} else {
+		log.Error("Could not find proto parameter", log.Fields{"paramType": paramType, "key": paramKey})
+		return -1
+	}
+	log.Debugw("Got value in proto", log.Fields{"key": paramKey, "value": result})
+	return result
+}
+
+func (t *TechProfileMgr) GetUsScheduler(tpInstance *TechProfile) *openolt_pb.Scheduler {
+	dir := openolt_pb.Direction(t.GetprotoBufParamValue("direction", tpInstance.UsScheduler.Scheduler.Direction))
+	if dir == -1 {
+		log.Fatal("Error in getting Proto for direction for upstream scheduler")
+		return nil
+	}
+	bw := openolt_pb.AdditionalBW(t.GetprotoBufParamValue("additional_bw", tpInstance.UsScheduler.Scheduler.AdditionalBw))
+	if bw == -1 {
+		log.Fatal("Error in getting Proto for bandwidth for upstream scheduler")
+		return nil
+	}
+	policy := openolt_pb.SchedulingPolicy(t.GetprotoBufParamValue("sched_policy", tpInstance.UsScheduler.Scheduler.QSchedPolicy))
+	if policy == -1 {
+		log.Fatal("Error in getting Proto for scheduling policy for upstream scheduler")
+		return nil
+	}
+	return &openolt_pb.Scheduler{
+		Direction:    dir,
+		AdditionalBw: bw,
+		Priority:     tpInstance.UsScheduler.Scheduler.Priority,
+		Weight:       tpInstance.UsScheduler.Scheduler.Weight,
+		SchedPolicy:  policy}
+}
+
+func (t *TechProfileMgr) GetDsScheduler(tpInstance *TechProfile) *openolt_pb.Scheduler {
+
+	dir := openolt_pb.Direction(t.GetprotoBufParamValue("direction", tpInstance.DsScheduler.Scheduler.Direction))
+	if dir == -1 {
+		log.Fatal("Error in getting Proto for direction for downstream scheduler")
+		return nil
+	}
+	bw := openolt_pb.AdditionalBW(t.GetprotoBufParamValue("additional_bw", tpInstance.DsScheduler.Scheduler.AdditionalBw))
+	if bw == -1 {
+		log.Fatal("Error in getting Proto for bandwidth for downstream scheduler")
+		return nil
+	}
+	policy := openolt_pb.SchedulingPolicy(t.GetprotoBufParamValue("sched_policy", tpInstance.DsScheduler.Scheduler.QSchedPolicy))
+	if policy == -1 {
+		log.Fatal("Error in getting Proto for scheduling policy for downstream scheduler")
+		return nil
+	}
+
+	return &openolt_pb.Scheduler{
+		Direction:    dir,
+		AdditionalBw: bw,
+		Priority:     tpInstance.DsScheduler.Scheduler.Priority,
+		Weight:       tpInstance.DsScheduler.Scheduler.Weight,
+		SchedPolicy:  policy}
+}
+
+func (t *TechProfileMgr) GetTconts(tpInstance *TechProfile, usSched *openolt_pb.Scheduler, dsSched *openolt_pb.Scheduler) []*openolt_pb.Tcont {
+	if usSched == nil {
+		if usSched = t.GetUsScheduler(tpInstance); usSched == nil {
+			log.Fatal("Error in getting upstream scheduler from techprofile")
+			return nil
+		}
+	}
+	if dsSched == nil {
+		if dsSched = t.GetDsScheduler(tpInstance); dsSched == nil {
+			log.Fatal("Error in getting downstream scheduler from techprofile")
+			return nil
+		}
+	}
+	tconts := []*openolt_pb.Tcont{}
+	// TODO: Fix me , UPSTREAM direction is not proper
+	// upstream scheduler
+	tcont_us := &openolt_pb.Tcont{
+		Direction: usSched.Direction,
+		AllocId:   tpInstance.UsScheduler.AllocID,
+		Scheduler: usSched} /*TrafficShapingInfo: ? */
+	tconts = append(tconts, tcont_us)
+
+	// downstream scheduler
+	tcont_ds := &openolt_pb.Tcont{
+		Direction: dsSched.Direction,
+		AllocId:   tpInstance.DsScheduler.AllocID,
+		Scheduler: dsSched}
+
+	tconts = append(tconts, tcont_ds)
+	return tconts
+}