diff --git a/go.mod b/go.mod
index 4960581..18e8af4 100644
--- a/go.mod
+++ b/go.mod
@@ -4,10 +4,11 @@
 
 require (
 	github.com/gogo/protobuf v1.3.2
+	github.com/golang/mock v1.5.0
 	github.com/golang/protobuf v1.3.2
 	github.com/google/uuid v1.1.1
-	github.com/opencord/voltha-lib-go/v4 v4.2.3
-	github.com/opencord/voltha-protos/v4 v4.1.0
+	github.com/opencord/voltha-lib-go/v4 v4.3.0
+	github.com/opencord/voltha-protos/v4 v4.1.1
 	github.com/opentracing/opentracing-go v1.1.0
 	github.com/phayes/freeport v0.0.0-20180830031419-95f893ade6f2
 	github.com/stretchr/testify v1.4.0
diff --git a/go.sum b/go.sum
index f4625d0..fdb5b9b 100644
--- a/go.sum
+++ b/go.sum
@@ -73,6 +73,8 @@
 github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903 h1:LbsanbbD6LieFkXbj9YNNBupiGHJgFeLpO0j0Fza1h8=
 github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
+github.com/golang/mock v1.5.0 h1:jlYHihg//f7RRwuPfptm04yp4s7O6Kw8EZiVYIGcH0g=
+github.com/golang/mock v1.5.0/go.mod h1:CWnOUgYIOo4TcNZ0wHX3YZCqsaM1I1Jvs6v3mP3KVu8=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs=
@@ -139,11 +141,10 @@
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/gomega v1.4.2 h1:3mYCb7aPxS/RU7TI1y4rkEn1oKmPRjNJLNEXgw7MH2I=
 github.com/onsi/gomega v1.4.2/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
-github.com/opencord/voltha-lib-go/v4 v4.2.3 h1:nT3k4ZMbYhJDrAtkgJ97to4Kznt5fsl5ULcB6XvGIhU=
-github.com/opencord/voltha-lib-go/v4 v4.2.3/go.mod h1:K7lDkSkJ97EyfvX8fQtBmBvpj7n6MmwnAtD8Jz79HcQ=
-github.com/opencord/voltha-protos/v4 v4.0.12/go.mod h1:W/OIFIyvFh/C0vchRUuarIsMylEhzCRM9pNxLvkPtKc=
-github.com/opencord/voltha-protos/v4 v4.1.0 h1:bZRI2sAJyxbDQY4yuTXrPNBnSEgfghyJel1JxBYvhnY=
-github.com/opencord/voltha-protos/v4 v4.1.0/go.mod h1:W/OIFIyvFh/C0vchRUuarIsMylEhzCRM9pNxLvkPtKc=
+github.com/opencord/voltha-lib-go/v4 v4.3.0 h1:yJ/qhUhBqBCYjR7aik6ON9g+8vQUssGTDvKAdphX4FM=
+github.com/opencord/voltha-lib-go/v4 v4.3.0/go.mod h1:65GN71j4os0ApBRR+xbJ93iAMJMKIwVi/npG/hbPt8w=
+github.com/opencord/voltha-protos/v4 v4.1.1 h1:yovQHC+JQSrw5zxj0UeQqmyFUBQ+487JdG5w5ttrRyc=
+github.com/opencord/voltha-protos/v4 v4.1.1/go.mod h1:W/OIFIyvFh/C0vchRUuarIsMylEhzCRM9pNxLvkPtKc=
 github.com/opentracing/opentracing-go v1.1.0 h1:pWlfV3Bxv7k65HYwkikxat0+s3pV4bsqf19k25Ur8rU=
 github.com/opentracing/opentracing-go v1.1.0/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
 github.com/phayes/freeport v0.0.0-20180830031419-95f893ade6f2 h1:JhzVVoYvbOACxoUmOs6V/G4D5nPVUW73rKvXxP4XUJc=
diff --git a/rw_core/core/device/agent_image.go b/rw_core/core/device/agent_image.go
index 9816927..3781540 100644
--- a/rw_core/core/device/agent_image.go
+++ b/rw_core/core/device/agent_image.go
@@ -18,6 +18,8 @@
 
 import (
 	"context"
+
+	"github.com/opencord/voltha-lib-go/v4/pkg/kafka"
 	"github.com/opencord/voltha-protos/v4/go/common"
 
 	"github.com/gogo/protobuf/proto"
@@ -387,3 +389,185 @@
 	}
 
 }
+
+func (agent *Agent) downloadImageToDevice(ctx context.Context, request *voltha.DeviceImageDownloadRequest) (*voltha.DeviceImageResponse, error) {
+	if err := agent.requestQueue.WaitForGreenLight(ctx); err != nil {
+		return nil, err
+	}
+
+	logger.Debugw(ctx, "download-image-to-device", log.Fields{"device-id": agent.deviceID})
+	if agent.device.Root {
+		agent.requestQueue.RequestComplete()
+		return nil, status.Errorf(codes.FailedPrecondition, "device-id:%s, is an OLT. Image update "+
+			"not supported by VOLTHA. Use Device Manager or other means", agent.deviceID)
+	}
+
+	cloned := agent.cloneDeviceWithoutLock()
+
+	// Send the request to the adapter
+	subCtx, cancel := context.WithTimeout(log.WithSpanFromContext(context.Background(), ctx), agent.defaultTimeout)
+	defer cancel()
+	subCtx = coreutils.WithRPCMetadataFromContext(subCtx, ctx)
+
+	ch, err := agent.adapterProxy.DownloadImageToOnuDevice(subCtx, cloned, request)
+	agent.requestQueue.RequestComplete()
+	if err != nil {
+		return nil, err
+	}
+
+	return agent.getDeviceImageResponseFromAdapter(ctx, ch)
+}
+
+func (agent *Agent) getImageStatus(ctx context.Context, request *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) {
+	if err := agent.requestQueue.WaitForGreenLight(ctx); err != nil {
+		return nil, err
+	}
+
+	cloned := agent.cloneDeviceWithoutLock()
+
+	// Send the request to the adapter
+	subCtx, cancel := context.WithTimeout(log.WithSpanFromContext(context.Background(), ctx), agent.defaultTimeout)
+	defer cancel()
+	subCtx = coreutils.WithRPCMetadataFromContext(subCtx, ctx)
+	logger.Debugw(ctx, "get-image-status", log.Fields{"device-id": agent.deviceID})
+
+	ch, err := agent.adapterProxy.GetOnuImageStatus(subCtx, cloned, request)
+	agent.requestQueue.RequestComplete()
+	if err != nil {
+		return nil, err
+	}
+
+	return agent.getDeviceImageResponseFromAdapter(subCtx, ch)
+}
+
+func (agent *Agent) activateImageOnDevice(ctx context.Context, request *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) {
+	if err := agent.requestQueue.WaitForGreenLight(ctx); err != nil {
+		return nil, err
+	}
+
+	cloned := agent.cloneDeviceWithoutLock()
+
+	// Send the request to the adapter
+	subCtx, cancel := context.WithTimeout(log.WithSpanFromContext(context.Background(), ctx), agent.defaultTimeout)
+	defer cancel()
+	subCtx = coreutils.WithRPCMetadataFromContext(subCtx, ctx)
+	logger.Debugw(ctx, "activate-image-on-device", log.Fields{"device-id": agent.deviceID})
+
+	ch, err := agent.adapterProxy.ActivateOnuImage(subCtx, cloned, request)
+	agent.requestQueue.RequestComplete()
+	if err != nil {
+		return nil, err
+	}
+
+	return agent.getDeviceImageResponseFromAdapter(subCtx, ch)
+}
+
+func (agent *Agent) abortImageUpgradeToDevice(ctx context.Context, request *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) {
+	if err := agent.requestQueue.WaitForGreenLight(ctx); err != nil {
+		return nil, err
+	}
+
+	cloned := agent.cloneDeviceWithoutLock()
+
+	// Send the request to the adapter
+	subCtx, cancel := context.WithTimeout(log.WithSpanFromContext(context.Background(), ctx), agent.defaultTimeout)
+	defer cancel()
+	subCtx = coreutils.WithRPCMetadataFromContext(subCtx, ctx)
+	logger.Debugw(ctx, "abort-image-on-device", log.Fields{"device-id": agent.deviceID})
+
+	ch, err := agent.adapterProxy.AbortImageUpgrade(subCtx, cloned, request)
+	agent.requestQueue.RequestComplete()
+	if err != nil {
+		return nil, err
+	}
+
+	return agent.getDeviceImageResponseFromAdapter(ctx, ch)
+}
+
+func (agent *Agent) commitImage(ctx context.Context, request *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) {
+	if err := agent.requestQueue.WaitForGreenLight(ctx); err != nil {
+		return nil, err
+	}
+
+	cloned := agent.cloneDeviceWithoutLock()
+
+	// Send the request to the adapter
+	subCtx, cancel := context.WithTimeout(log.WithSpanFromContext(context.Background(), ctx), agent.defaultTimeout)
+	defer cancel()
+	subCtx = coreutils.WithRPCMetadataFromContext(subCtx, ctx)
+	logger.Debugw(ctx, "commit-image-on-device", log.Fields{"device-id": agent.deviceID})
+
+	ch, err := agent.adapterProxy.CommitImage(subCtx, cloned, request)
+	agent.requestQueue.RequestComplete()
+	if err != nil {
+		return nil, err
+	}
+
+	return agent.getDeviceImageResponseFromAdapter(ctx, ch)
+}
+
+func (agent *Agent) getOnuImages(ctx context.Context, id *common.ID) (*voltha.OnuImages, error) {
+	if err := agent.requestQueue.WaitForGreenLight(ctx); err != nil {
+		return nil, err
+	}
+
+	cloned := agent.cloneDeviceWithoutLock()
+
+	subCtx, cancel := context.WithTimeout(log.WithSpanFromContext(context.Background(), ctx), agent.defaultTimeout)
+	defer cancel()
+	subCtx = coreutils.WithRPCMetadataFromContext(subCtx, ctx)
+	logger.Debugw(ctx, "get-onu-images", log.Fields{"device-id": agent.deviceID})
+
+	// Send the request to the adapter
+	ch, err := agent.adapterProxy.GetOnuImages(subCtx, cloned, id)
+	agent.requestQueue.RequestComplete()
+	if err != nil {
+		return nil, err
+	}
+
+	//wait for adapter response
+	select {
+	case rpcResponse, ok := <-ch:
+		if !ok {
+			return nil, status.Errorf(codes.Aborted, "channel-closed-device-id-%s", agent.deviceID)
+		} else if rpcResponse.Err != nil {
+			// return error
+			return nil, status.Errorf(codes.Internal, "%s", rpcResponse.Err.Error())
+		} else {
+			resp := &voltha.OnuImages{}
+			if err := ptypes.UnmarshalAny(rpcResponse.Reply, resp); err != nil {
+				return nil, status.Errorf(codes.Internal, "%s", err.Error())
+			}
+
+			return resp, nil
+		}
+	case <-ctx.Done():
+		return nil, ctx.Err()
+	}
+}
+
+func (agent *Agent) getDeviceImageResponseFromAdapter(ctx context.Context, ch chan *kafka.RpcResponse) (*voltha.DeviceImageResponse, error) {
+	//wait for adapter response
+	select {
+	case rpcResponse, ok := <-ch:
+		if !ok {
+			return nil, status.Errorf(codes.Aborted, "channel-closed-device-id-%s", agent.deviceID)
+		} else if rpcResponse.Err != nil {
+			// return error
+			return nil, status.Errorf(codes.Internal, "%s", rpcResponse.Err.Error())
+		} else {
+			resp := &voltha.DeviceImageResponse{}
+			if err := ptypes.UnmarshalAny(rpcResponse.Reply, resp); err != nil {
+				return nil, status.Errorf(codes.Internal, "%s", err.Error())
+			}
+
+			if len(resp.DeviceImageStates) == 0 || resp.DeviceImageStates[0] == nil {
+				return nil, status.Errorf(codes.Internal, "invalid response from adapter")
+			}
+
+			return resp, nil
+		}
+	case <-ctx.Done():
+		return nil, ctx.Err()
+	}
+}
diff --git a/rw_core/core/device/manager.go b/rw_core/core/device/manager.go
index 9d9f933..43bd2be 100755
--- a/rw_core/core/device/manager.go
+++ b/rw_core/core/device/manager.go
@@ -1643,3 +1643,321 @@
 	}
 	return agent.getTransientState(), nil
 }
+
+func (dMgr *Manager) DownloadImageToDevice(ctx context.Context, request *voltha.DeviceImageDownloadRequest) (*voltha.DeviceImageResponse, error) {
+	if err := dMgr.validateImageDownloadRequest(request); err != nil {
+		return nil, err
+	}
+
+	ctx = utils.WithRPCMetadataContext(ctx, "DownloadImageToDevice")
+	respCh := make(chan []*voltha.DeviceImageState, len(request.GetDeviceId()))
+
+	downloadReq := &voltha.DeviceImageDownloadRequest{
+		Image:             request.Image,
+		ActivateOnSuccess: request.ActivateOnSuccess,
+		CommitOnSuccess:   request.CommitOnSuccess,
+	}
+
+	for index, deviceID := range request.DeviceId {
+		//slice-out only single deviceID from the request
+		downloadReq.DeviceId = request.DeviceId[index : index+1]
+
+		go func(deviceID string, req *voltha.DeviceImageDownloadRequest, ch chan []*voltha.DeviceImageState) {
+			agent := dMgr.getDeviceAgent(ctx, deviceID)
+			if agent == nil {
+				logger.Errorw(ctx, "Not-found", log.Fields{"device-id": deviceID})
+				ch <- nil
+				return
+			}
+
+			resp, err := agent.downloadImageToDevice(ctx, req)
+			if err != nil {
+				logger.Errorw(ctx, "download-image-to-device-failed", log.Fields{"device-id": deviceID, "error": err})
+				ch <- nil
+				return
+			}
+
+			err = dMgr.validateDeviceImageResponse(resp)
+			if err != nil {
+				logger.Errorw(ctx, "download-image-to-device-failed", log.Fields{"device-id": deviceID, "error": err})
+				ch <- nil
+				return
+			}
+			ch <- resp.GetDeviceImageStates()
+		}(deviceID.GetId(), downloadReq, respCh)
+
+	}
+
+	return dMgr.waitForAllResponses(ctx, "download-image-to-device", respCh, len(request.GetDeviceId()))
+}
+
+func (dMgr *Manager) GetImageStatus(ctx context.Context, request *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) {
+	if err := dMgr.validateImageRequest(request); err != nil {
+		return nil, err
+	}
+
+	ctx = utils.WithRPCMetadataContext(ctx, "GetImageStatus")
+
+	imageStatusReq := &voltha.DeviceImageRequest{
+		Version:         request.Version,
+		CommitOnSuccess: request.CommitOnSuccess,
+	}
+
+	respCh := make(chan []*voltha.DeviceImageState, len(request.GetDeviceId()))
+	for index, deviceID := range request.DeviceId {
+		//slice-out only single deviceID from the request
+		imageStatusReq.DeviceId = request.DeviceId[index : index+1]
+
+		go func(deviceID string, req *voltha.DeviceImageRequest, ch chan []*voltha.DeviceImageState) {
+			agent := dMgr.getDeviceAgent(ctx, deviceID)
+			if agent == nil {
+				logger.Errorw(ctx, "Not-found", log.Fields{"device-id": deviceID})
+				ch <- nil
+				return
+			}
+
+			resp, err := agent.getImageStatus(ctx, req)
+			if err != nil {
+				logger.Errorw(ctx, "get-image-status-failed", log.Fields{"device-id": deviceID, "error": err})
+				ch <- nil
+				return
+			}
+
+			err = dMgr.validateDeviceImageResponse(resp)
+			if err != nil {
+				logger.Errorw(ctx, "get-image-status-failed", log.Fields{"device-id": deviceID, "error": err})
+				ch <- nil
+				return
+			}
+			ch <- resp.GetDeviceImageStates()
+		}(deviceID.GetId(), imageStatusReq, respCh)
+
+	}
+
+	return dMgr.waitForAllResponses(ctx, "get-image-status", respCh, len(request.GetDeviceId()))
+}
+
+func (dMgr *Manager) AbortImageUpgradeToDevice(ctx context.Context, request *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) {
+	if err := dMgr.validateImageRequest(request); err != nil {
+		return nil, err
+	}
+
+	ctx = utils.WithRPCMetadataContext(ctx, "AbortImageUpgradeToDevice")
+	respCh := make(chan []*voltha.DeviceImageState, len(request.GetDeviceId()))
+
+	abortImageReq := &voltha.DeviceImageRequest{
+		Version:         request.Version,
+		CommitOnSuccess: request.CommitOnSuccess,
+	}
+
+	for index, deviceID := range request.DeviceId {
+		//slice-out only single deviceID from the request
+		abortImageReq.DeviceId = request.DeviceId[index : index+1]
+
+		go func(deviceID string, req *voltha.DeviceImageRequest, ch chan []*voltha.DeviceImageState) {
+			agent := dMgr.getDeviceAgent(ctx, deviceID)
+			if agent == nil {
+				logger.Errorw(ctx, "Not-found", log.Fields{"device-id": deviceID})
+				ch <- nil
+				return
+			}
+
+			resp, err := agent.abortImageUpgradeToDevice(ctx, req)
+			if err != nil {
+				logger.Errorw(ctx, "abort-image-upgrade-to-device-failed", log.Fields{"device-id": deviceID, "error": err})
+				ch <- nil
+				return
+			}
+
+			err = dMgr.validateDeviceImageResponse(resp)
+			if err != nil {
+				logger.Errorw(ctx, "abort-image-upgrade-to-device-failed", log.Fields{"device-id": deviceID, "error": err})
+				ch <- nil
+				return
+			}
+			ch <- resp.GetDeviceImageStates()
+		}(deviceID.GetId(), abortImageReq, respCh)
+
+	}
+
+	return dMgr.waitForAllResponses(ctx, "abort-image-upgrade-to-device", respCh, len(request.GetDeviceId()))
+}
+
+func (dMgr *Manager) GetOnuImages(ctx context.Context, id *common.ID) (*voltha.OnuImages, error) {
+	if id == nil || id.Id == "" {
+		return nil, status.Errorf(codes.InvalidArgument, "empty device id")
+	}
+
+	ctx = utils.WithRPCMetadataContext(ctx, "GetOnuImages")
+	log.EnrichSpan(ctx, log.Fields{"device-id": id.Id})
+	agent := dMgr.getDeviceAgent(ctx, id.Id)
+	if agent == nil {
+		return nil, status.Errorf(codes.NotFound, "%s", id.Id)
+	}
+
+	resp, err := agent.getOnuImages(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+
+	logger.Debugw(ctx, "get-onu-images-result", log.Fields{"onu-image": resp.Items})
+
+	return resp, nil
+}
+
+func (dMgr *Manager) ActivateImage(ctx context.Context, request *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) {
+	if err := dMgr.validateImageRequest(request); err != nil {
+		return nil, err
+	}
+
+	ctx = utils.WithRPCMetadataContext(ctx, "ActivateImage")
+	respCh := make(chan []*voltha.DeviceImageState, len(request.GetDeviceId()))
+
+	activateImageReq := &voltha.DeviceImageRequest{
+		Version:         request.Version,
+		CommitOnSuccess: request.CommitOnSuccess,
+	}
+
+	for index, deviceID := range request.DeviceId {
+		//slice-out only single deviceID from the request
+		activateImageReq.DeviceId = request.DeviceId[index : index+1]
+
+		go func(deviceID string, req *voltha.DeviceImageRequest, ch chan []*voltha.DeviceImageState) {
+			agent := dMgr.getDeviceAgent(ctx, deviceID)
+			if agent == nil {
+				logger.Errorw(ctx, "Not-found", log.Fields{"device-id": deviceID})
+				ch <- nil
+				return
+			}
+
+			resp, err := agent.activateImageOnDevice(ctx, req)
+			if err != nil {
+				logger.Errorw(ctx, "activate-image-failed", log.Fields{"device-id": deviceID, "error": err})
+				ch <- nil
+				return
+			}
+
+			err = dMgr.validateDeviceImageResponse(resp)
+			if err != nil {
+				logger.Errorw(ctx, "activate-image-failed", log.Fields{"device-id": deviceID, "error": err})
+				ch <- nil
+				return
+			}
+
+			ch <- resp.GetDeviceImageStates()
+		}(deviceID.GetId(), activateImageReq, respCh)
+
+	}
+
+	return dMgr.waitForAllResponses(ctx, "activate-image", respCh, len(request.GetDeviceId()))
+}
+
+func (dMgr *Manager) CommitImage(ctx context.Context, request *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) {
+	if err := dMgr.validateImageRequest(request); err != nil {
+		return nil, err
+	}
+
+	ctx = utils.WithRPCMetadataContext(ctx, "CommitImage")
+	respCh := make(chan []*voltha.DeviceImageState, len(request.GetDeviceId()))
+
+	commitImageReq := &voltha.DeviceImageRequest{
+		Version:         request.Version,
+		CommitOnSuccess: request.CommitOnSuccess,
+	}
+
+	for index, deviceID := range request.DeviceId {
+		//slice-out only single deviceID from the request
+		commitImageReq.DeviceId = request.DeviceId[index : index+1]
+
+		go func(deviceID string, req *voltha.DeviceImageRequest, ch chan []*voltha.DeviceImageState) {
+			agent := dMgr.getDeviceAgent(ctx, deviceID)
+			if agent == nil {
+				logger.Errorw(ctx, "Not-found", log.Fields{"device-id": deviceID})
+				ch <- nil
+				return
+			}
+
+			resp, err := agent.commitImage(ctx, req)
+			if err != nil {
+				logger.Errorw(ctx, "commit-image-failed", log.Fields{"device-id": deviceID, "error": err})
+				ch <- nil
+				return
+			}
+
+			err = dMgr.validateDeviceImageResponse(resp)
+			if err != nil {
+				logger.Errorf(ctx, "commit-image-failed", log.Fields{"device-id": deviceID, "error": err})
+				ch <- nil
+				return
+			}
+			ch <- resp.GetDeviceImageStates()
+		}(deviceID.GetId(), commitImageReq, respCh)
+
+	}
+
+	return dMgr.waitForAllResponses(ctx, "commit-image", respCh, len(request.GetDeviceId()))
+}
+
+func (dMgr *Manager) validateImageDownloadRequest(request *voltha.DeviceImageDownloadRequest) error {
+	if request == nil || request.Image == nil || len(request.DeviceId) == 0 {
+		return status.Errorf(codes.InvalidArgument, "invalid argument")
+	}
+
+	for _, deviceID := range request.DeviceId {
+		if deviceID == nil {
+			return status.Errorf(codes.InvalidArgument, "id is nil")
+		}
+	}
+	return nil
+}
+
+func (dMgr *Manager) validateImageRequest(request *voltha.DeviceImageRequest) error {
+	if request == nil || len(request.DeviceId) == 0 || request.DeviceId[0] == nil {
+		return status.Errorf(codes.InvalidArgument, "invalid argument")
+	}
+
+	for _, deviceID := range request.DeviceId {
+		if deviceID == nil {
+			return status.Errorf(codes.InvalidArgument, "id is nil")
+		}
+	}
+
+	return nil
+}
+
+func (dMgr *Manager) validateDeviceImageResponse(response *voltha.DeviceImageResponse) error {
+	if response == nil || len(response.GetDeviceImageStates()) == 0 || response.GetDeviceImageStates()[0] == nil {
+		return status.Errorf(codes.Internal, "invalid-response-from-adapter")
+	}
+
+	return nil
+}
+
+func (dMgr *Manager) waitForAllResponses(ctx context.Context, opName string, respCh chan []*voltha.DeviceImageState, expectedResps int) (*voltha.DeviceImageResponse, error) {
+	response := &voltha.DeviceImageResponse{}
+	respCount := 0
+	for {
+		select {
+		case resp, ok := <-respCh:
+			if !ok {
+				logger.Errorw(ctx, opName+"-failed", log.Fields{"error": "channel-closed"})
+				return response, status.Errorf(codes.Aborted, "channel-closed")
+			}
+
+			if resp != nil {
+				logger.Debugw(ctx, opName+"-result", log.Fields{"image-state": resp[0].GetImageState(), "device-id": resp[0].GetDeviceId()})
+				response.DeviceImageStates = append(response.DeviceImageStates, resp...)
+			}
+
+			respCount++
+
+			//check whether all responses received, if so, sent back the collated response
+			if respCount == expectedResps {
+				return response, nil
+			}
+			continue
+		case <-ctx.Done():
+			return nil, status.Errorf(codes.Aborted, opName+"-failed-%s", ctx.Err())
+		}
+	}
+}
diff --git a/rw_core/core/device/manager_test.go b/rw_core/core/device/manager_test.go
new file mode 100644
index 0000000..40407f9
--- /dev/null
+++ b/rw_core/core/device/manager_test.go
@@ -0,0 +1,886 @@
+/*
+ * 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 device
+
+import (
+	"context"
+	"reflect"
+	"strconv"
+	"testing"
+
+	"github.com/golang/mock/gomock"
+	"github.com/golang/protobuf/ptypes"
+	"github.com/golang/protobuf/ptypes/any"
+	"github.com/opencord/voltha-go/db/model"
+	"github.com/opencord/voltha-go/rw_core/config"
+	"github.com/opencord/voltha-go/rw_core/core/adapter"
+	tst "github.com/opencord/voltha-go/rw_core/test"
+	"github.com/opencord/voltha-lib-go/v4/pkg/db"
+	"github.com/opencord/voltha-lib-go/v4/pkg/events"
+	"github.com/opencord/voltha-lib-go/v4/pkg/kafka"
+	"github.com/opencord/voltha-protos/v4/go/common"
+	"github.com/opencord/voltha-protos/v4/go/voltha"
+	"github.com/phayes/freeport"
+	"github.com/stretchr/testify/assert"
+)
+
+const (
+	version = "dummy-version"
+	url     = "http://127.0.0.1:2222/dummy-image"
+	vendor  = "dummy"
+
+	numberOfTestDevices = 10
+)
+
+func initialiseTest(ctx context.Context, t *testing.T) (*DATest, *MockInterContainerProxy, []*Agent) {
+	dat := newDATest(ctx)
+
+	controller := gomock.NewController(t)
+	mockICProxy := NewMockInterContainerProxy(controller)
+
+	// Set expectations for the mock
+	mockICProxy.EXPECT().Start(gomock.Any()).AnyTimes().Return(nil)
+	mockICProxy.EXPECT().SubscribeWithDefaultRequestHandler(gomock.Any(), gomock.Any(), gomock.Any()).AnyTimes().Return(nil)
+
+	dat.startCoreWithCustomICProxy(ctx, mockICProxy)
+
+	var agents []*Agent
+	for i := 1; i <= numberOfTestDevices; i++ {
+		if agent := dat.createDeviceAgent(t); agent != nil {
+			agents = append(agents, agent)
+		}
+	}
+
+	assert.Equal(t, len(agents), numberOfTestDevices)
+
+	dat.oltAdapter, dat.onuAdapter = tst.CreateAndregisterAdapters(ctx,
+		t,
+		dat.kClient,
+		dat.coreInstanceID,
+		dat.oltAdapterName,
+		dat.onuAdapterName,
+		dat.adapterMgr)
+
+	return dat, mockICProxy, agents
+}
+
+func (dat *DATest) startCoreWithCustomICProxy(ctx context.Context, kmp kafka.InterContainerProxy) {
+	cfg := config.NewRWCoreFlags()
+	cfg.CoreTopic = "rw_core"
+	cfg.EventTopic = "voltha.events"
+	cfg.DefaultRequestTimeout = dat.defaultTimeout
+	cfg.KVStoreAddress = "127.0.0.1" + ":" + strconv.Itoa(dat.kvClientPort)
+	grpcPort, err := freeport.GetFreePort()
+	if err != nil {
+		logger.Fatal(ctx, "Cannot get a freeport for grpc")
+	}
+	cfg.GrpcAddress = "127.0.0.1" + ":" + strconv.Itoa(grpcPort)
+	client := tst.SetupKVClient(ctx, cfg, dat.coreInstanceID)
+	backend := &db.Backend{
+		Client:                  client,
+		StoreType:               cfg.KVStoreType,
+		Address:                 cfg.KVStoreAddress,
+		Timeout:                 cfg.KVStoreTimeout,
+		LivenessChannelInterval: cfg.LiveProbeInterval / 2}
+
+	dat.kmp = kmp
+
+	endpointMgr := kafka.NewEndpointManager(backend)
+	proxy := model.NewDBPath(backend)
+	dat.adapterMgr = adapter.NewAdapterManager(ctx, proxy, dat.coreInstanceID, dat.kClient)
+	eventProxy := events.NewEventProxy(events.MsgClient(dat.kEventClient), events.MsgTopic(kafka.Topic{Name: cfg.EventTopic}))
+	dat.deviceMgr, dat.logicalDeviceMgr = NewManagers(proxy, dat.adapterMgr, dat.kmp, endpointMgr, cfg.CoreTopic, dat.coreInstanceID, cfg.DefaultCoreTimeout, eventProxy, cfg.VolthaStackID)
+	dat.adapterMgr.Start(context.Background())
+	if err = dat.kmp.Start(ctx); err != nil {
+		logger.Fatal(ctx, "Cannot start InterContainerProxy")
+	}
+
+	if err := dat.kmp.SubscribeWithDefaultRequestHandler(ctx, kafka.Topic{Name: cfg.CoreTopic}, kafka.OffsetNewest); err != nil {
+		logger.Fatalf(ctx, "Cannot add default request handler: %s", err)
+	}
+
+}
+
+func TestManager_DownloadImageToDevice(t *testing.T) {
+	type args struct {
+		ctx     context.Context
+		request *voltha.DeviceImageDownloadRequest
+	}
+
+	ctx := context.Background()
+	dat, mockICProxy, agents := initialiseTest(ctx, t)
+
+	tests := []struct {
+		name    string
+		args    args
+		want    *voltha.DeviceImageResponse
+		wantErr bool
+	}{
+		{
+			name: "request-for-single-device",
+			args: args{
+				ctx:     ctx,
+				request: newDeviceImageDownloadRequest(agents[:1]),
+			},
+			want:    newImageResponse(agents[:1], voltha.ImageState_DOWNLOAD_REQUESTED, voltha.ImageState_IMAGE_DOWNLOADING, voltha.ImageState_NO_ERROR),
+			wantErr: false,
+		},
+		{
+			name: "request-for-multiple-devices",
+			args: args{
+				ctx:     ctx,
+				request: newDeviceImageDownloadRequest(agents),
+			},
+			want:    newImageResponse(agents, voltha.ImageState_DOWNLOAD_REQUESTED, voltha.ImageState_IMAGE_DOWNLOADING, voltha.ImageState_NO_ERROR),
+			wantErr: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if tt.name == "request-for-single-device" {
+				chnl := make(chan *kafka.RpcResponse, 10)
+				// Set expectation for the API invocation
+				mockICProxy.EXPECT().InvokeAsyncRPC(gomock.Any(),
+					"Download_onu_image",
+					gomock.Any(),
+					gomock.Any(),
+					true,
+					gomock.Any(), gomock.Any()).Return(chnl)
+				// Send the expected response to channel from a goroutine
+				go func() {
+					reply := newImageDownloadAdapterResponse(t, agents[0].deviceID, voltha.ImageState_DOWNLOAD_REQUESTED, voltha.ImageState_IMAGE_DOWNLOADING, voltha.ImageState_NO_ERROR)
+
+					chnl <- &kafka.RpcResponse{
+						MType: kafka.RpcSent,
+						Err:   nil,
+						Reply: reply,
+					}
+
+					chnl <- &kafka.RpcResponse{
+						MType: kafka.RpcReply,
+						Err:   nil,
+						Reply: reply,
+					}
+				}()
+			} else if tt.name == "request-for-multiple-devices" {
+				// Map to store per device kafka response channel
+				kafkaRespChans := make(map[string]chan *kafka.RpcResponse)
+				for _, id := range tt.args.request.DeviceId {
+					// Create a kafka response channel per device
+					chnl := make(chan *kafka.RpcResponse)
+
+					// Set expectation for the API invocation
+					mockICProxy.EXPECT().InvokeAsyncRPC(gomock.Any(),
+						"Download_onu_image",
+						gomock.Any(),
+						gomock.Any(),
+						true,
+						id.Id, gomock.Any()).Return(chnl)
+
+					kafkaRespChans[id.Id] = chnl
+				}
+
+				// Send the expected response to channel from a goroutine
+				go func() {
+					for _, agent := range agents {
+						reply := newImageDownloadAdapterResponse(t, agent.deviceID, voltha.ImageState_DOWNLOAD_REQUESTED, voltha.ImageState_IMAGE_DOWNLOADING, voltha.ImageState_NO_ERROR)
+
+						kafkaRespChans[agent.deviceID] <- &kafka.RpcResponse{
+							MType: kafka.RpcSent,
+							Err:   nil,
+							Reply: reply,
+						}
+
+						kafkaRespChans[agent.deviceID] <- &kafka.RpcResponse{
+							MType: kafka.RpcReply,
+							Err:   nil,
+							Reply: reply,
+						}
+					}
+				}()
+			}
+
+			got, err := dat.deviceMgr.DownloadImageToDevice(tt.args.ctx, tt.args.request)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("DownloadImageToDevice() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+
+			if !gotAllSuccess(got, tt.want) {
+				t.Errorf("DownloadImageToDevice() got = %v, want = %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestManager_GetImageStatus(t *testing.T) {
+	type args struct {
+		ctx     context.Context
+		request *voltha.DeviceImageRequest
+	}
+
+	ctx := context.Background()
+	dat, mockICProxy, agents := initialiseTest(ctx, t)
+
+	tests := []struct {
+		name    string
+		args    args
+		want    *voltha.DeviceImageResponse
+		wantErr bool
+	}{
+		{
+			name: "request-for-single-device",
+			args: args{
+				ctx:     ctx,
+				request: newDeviceImagedRequest(agents[:1]),
+			},
+			want:    newImageResponse(agents[:1], voltha.ImageState_DOWNLOAD_REQUESTED, voltha.ImageState_IMAGE_DOWNLOADING, voltha.ImageState_NO_ERROR),
+			wantErr: false,
+		},
+		{
+			name: "request-for-multiple-devices",
+			args: args{
+				ctx:     ctx,
+				request: newDeviceImagedRequest(agents),
+			},
+			want:    newImageResponse(agents, voltha.ImageState_DOWNLOAD_REQUESTED, voltha.ImageState_IMAGE_DOWNLOADING, voltha.ImageState_NO_ERROR),
+			wantErr: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if tt.name == "request-for-single-device" {
+				chnl := make(chan *kafka.RpcResponse, 10)
+				// Set expectation for the API invocation
+				mockICProxy.EXPECT().InvokeAsyncRPC(gomock.Any(),
+					"Get_onu_image_status",
+					gomock.Any(),
+					gomock.Any(),
+					true,
+					gomock.Any(), gomock.Any()).Return(chnl)
+				// Send the expected response to channel from a goroutine
+				go func() {
+					reply := newImageStatusAdapterResponse(t, agents[:1], voltha.ImageState_DOWNLOAD_REQUESTED, voltha.ImageState_IMAGE_DOWNLOADING, voltha.ImageState_NO_ERROR)
+
+					chnl <- &kafka.RpcResponse{
+						MType: kafka.RpcSent,
+						Err:   nil,
+						Reply: reply,
+					}
+
+					chnl <- &kafka.RpcResponse{
+						MType: kafka.RpcReply,
+						Err:   nil,
+						Reply: reply,
+					}
+				}()
+			} else if tt.name == "request-for-multiple-devices" {
+				// Map to store per device kafka response channel
+				kafkaRespChans := make(map[string]chan *kafka.RpcResponse)
+				for _, id := range tt.args.request.DeviceId {
+					// Create a kafka response channel per device
+					chnl := make(chan *kafka.RpcResponse)
+
+					// Set expectation for the API invocation
+					mockICProxy.EXPECT().InvokeAsyncRPC(gomock.Any(),
+						"Get_onu_image_status",
+						gomock.Any(),
+						gomock.Any(),
+						true,
+						id.Id, gomock.Any()).Return(chnl)
+
+					kafkaRespChans[id.Id] = chnl
+				}
+
+				// Send the expected response to channel from a goroutine
+				go func() {
+					for _, agent := range agents {
+						reply := newImageStatusAdapterResponse(t, agents, voltha.ImageState_DOWNLOAD_REQUESTED, voltha.ImageState_IMAGE_DOWNLOADING, voltha.ImageState_NO_ERROR)
+
+						kafkaRespChans[agent.deviceID] <- &kafka.RpcResponse{
+							MType: kafka.RpcSent,
+							Err:   nil,
+							Reply: reply,
+						}
+
+						kafkaRespChans[agent.deviceID] <- &kafka.RpcResponse{
+							MType: kafka.RpcReply,
+							Err:   nil,
+							Reply: reply,
+						}
+					}
+				}()
+			}
+
+			got, err := dat.deviceMgr.GetImageStatus(tt.args.ctx, tt.args.request)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("GetImageStatus() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+
+			if !gotAllSuccess(got, tt.want) {
+				t.Errorf("GetImageStatus() got = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestManager_AbortImageUpgradeToDevice(t *testing.T) {
+
+	type args struct {
+		ctx     context.Context
+		request *voltha.DeviceImageRequest
+	}
+
+	ctx := context.Background()
+	dat, mockICProxy, agents := initialiseTest(ctx, t)
+
+	tests := []struct {
+		name    string
+		args    args
+		want    *voltha.DeviceImageResponse
+		wantErr bool
+	}{
+		{
+			name: "request-for-single-device",
+			args: args{
+				ctx:     ctx,
+				request: newDeviceImagedRequest(agents[:1]),
+			},
+			want:    newImageResponse(agents[:1], voltha.ImageState_DOWNLOAD_CANCELLED, voltha.ImageState_IMAGE_ACTIVATION_ABORTED, voltha.ImageState_NO_ERROR),
+			wantErr: false,
+		},
+		{
+			name: "request-for-multiple-devices",
+			args: args{
+				ctx:     ctx,
+				request: newDeviceImagedRequest(agents[:1]),
+			},
+			want:    newImageResponse(agents, voltha.ImageState_DOWNLOAD_CANCELLED, voltha.ImageState_IMAGE_ACTIVATION_ABORTED, voltha.ImageState_NO_ERROR),
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if tt.name == "request-for-single-device" {
+				chnl := make(chan *kafka.RpcResponse, 10)
+				// Set expectation for the API invocation
+				mockICProxy.EXPECT().InvokeAsyncRPC(gomock.Any(),
+					"Abort_onu_image_upgrade",
+					gomock.Any(),
+					gomock.Any(),
+					true,
+					gomock.Any(), gomock.Any()).Return(chnl)
+				// Send the expected response to channel from a goroutine
+				go func() {
+					reply := newImageStatusAdapterResponse(t, agents[:1], voltha.ImageState_DOWNLOAD_CANCELLED, voltha.ImageState_IMAGE_ACTIVATION_ABORTED, voltha.ImageState_NO_ERROR)
+
+					chnl <- &kafka.RpcResponse{
+						MType: kafka.RpcSent,
+						Err:   nil,
+						Reply: reply,
+					}
+
+					chnl <- &kafka.RpcResponse{
+						MType: kafka.RpcReply,
+						Err:   nil,
+						Reply: reply,
+					}
+				}()
+			} else if tt.name == "request-for-multiple-devices" {
+				// Map to store per device kafka response channel
+				kafkaRespChans := make(map[string]chan *kafka.RpcResponse)
+				for _, id := range tt.args.request.DeviceId {
+					// Create a kafka response channel per device
+					chnl := make(chan *kafka.RpcResponse)
+
+					// Set expectation for the API invocation
+					mockICProxy.EXPECT().InvokeAsyncRPC(gomock.Any(),
+						"Abort_onu_image_upgrade",
+						gomock.Any(),
+						gomock.Any(),
+						true,
+						id.Id, gomock.Any()).Return(chnl)
+
+					kafkaRespChans[id.Id] = chnl
+				}
+
+				// Send the expected response to channel from a goroutine
+				go func() {
+					for _, agent := range agents {
+						reply := newImageStatusAdapterResponse(t, agents, voltha.ImageState_DOWNLOAD_CANCELLED, voltha.ImageState_IMAGE_ACTIVATION_ABORTED, voltha.ImageState_NO_ERROR)
+
+						kafkaRespChans[agent.deviceID] <- &kafka.RpcResponse{
+							MType: kafka.RpcSent,
+							Err:   nil,
+							Reply: reply,
+						}
+
+						kafkaRespChans[agent.deviceID] <- &kafka.RpcResponse{
+							MType: kafka.RpcReply,
+							Err:   nil,
+							Reply: reply,
+						}
+					}
+				}()
+			}
+			got, err := dat.deviceMgr.AbortImageUpgradeToDevice(tt.args.ctx, tt.args.request)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("AbortImageUpgradeToDevice() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+
+			if !gotAllSuccess(got, tt.want) {
+				t.Errorf("AbortImageUpgradeToDevice() got = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestManager_ActivateImage(t *testing.T) {
+	type args struct {
+		ctx     context.Context
+		request *voltha.DeviceImageRequest
+	}
+
+	ctx := context.Background()
+	dat, mockICProxy, agents := initialiseTest(ctx, t)
+
+	tests := []struct {
+		name    string
+		args    args
+		want    *voltha.DeviceImageResponse
+		wantErr bool
+	}{
+		{
+			name: "request-for-single-device",
+			args: args{
+				ctx:     ctx,
+				request: newDeviceImagedRequest(agents[:1]),
+			},
+			want:    newImageResponse(agents[:1], voltha.ImageState_DOWNLOAD_SUCCEEDED, voltha.ImageState_IMAGE_ACTIVATING, voltha.ImageState_NO_ERROR),
+			wantErr: false,
+		},
+		{
+			name: "request-for-multiple-devices",
+			args: args{
+				ctx:     ctx,
+				request: newDeviceImagedRequest(agents),
+			},
+			want:    newImageResponse(agents, voltha.ImageState_DOWNLOAD_SUCCEEDED, voltha.ImageState_IMAGE_ACTIVATING, voltha.ImageState_NO_ERROR),
+			wantErr: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if tt.name == "request-for-single-device" {
+				chnl := make(chan *kafka.RpcResponse, 10)
+				// Set expectation for the API invocation
+				mockICProxy.EXPECT().InvokeAsyncRPC(gomock.Any(),
+					"Activate_onu_image",
+					gomock.Any(),
+					gomock.Any(),
+					true,
+					gomock.Any(), gomock.Any()).Return(chnl)
+				// Send the expected response to channel from a goroutine
+				go func() {
+					reply := newImageStatusAdapterResponse(t, agents[:1], voltha.ImageState_DOWNLOAD_SUCCEEDED, voltha.ImageState_IMAGE_ACTIVATING, voltha.ImageState_NO_ERROR)
+
+					chnl <- &kafka.RpcResponse{
+						MType: kafka.RpcSent,
+						Err:   nil,
+						Reply: reply,
+					}
+
+					chnl <- &kafka.RpcResponse{
+						MType: kafka.RpcReply,
+						Err:   nil,
+						Reply: reply,
+					}
+				}()
+			} else if tt.name == "request-for-multiple-devices" {
+				// Map to store per device kafka response channel
+				kafkaRespChans := make(map[string]chan *kafka.RpcResponse)
+				for _, id := range tt.args.request.DeviceId {
+					// Create a kafka response channel per device
+					chnl := make(chan *kafka.RpcResponse)
+
+					// Set expectation for the API invocation
+					mockICProxy.EXPECT().InvokeAsyncRPC(gomock.Any(),
+						"Activate_onu_image",
+						gomock.Any(),
+						gomock.Any(),
+						true,
+						id.Id, gomock.Any()).Return(chnl)
+
+					kafkaRespChans[id.Id] = chnl
+				}
+
+				// Send the expected response to channel from a goroutine
+				go func() {
+					for _, agent := range agents {
+						reply := newImageStatusAdapterResponse(t, agents, voltha.ImageState_DOWNLOAD_SUCCEEDED, voltha.ImageState_IMAGE_ACTIVATING, voltha.ImageState_NO_ERROR)
+
+						kafkaRespChans[agent.deviceID] <- &kafka.RpcResponse{
+							MType: kafka.RpcSent,
+							Err:   nil,
+							Reply: reply,
+						}
+
+						kafkaRespChans[agent.deviceID] <- &kafka.RpcResponse{
+							MType: kafka.RpcReply,
+							Err:   nil,
+							Reply: reply,
+						}
+					}
+				}()
+			}
+			got, err := dat.deviceMgr.ActivateImage(tt.args.ctx, tt.args.request)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("ActivateImage() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !gotAllSuccess(got, tt.want) {
+				t.Errorf("ActivateImage() got = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestManager_CommitImage(t *testing.T) {
+	type args struct {
+		ctx     context.Context
+		request *voltha.DeviceImageRequest
+	}
+
+	ctx := context.Background()
+	dat, mockICProxy, agents := initialiseTest(ctx, t)
+
+	tests := []struct {
+		name    string
+		args    args
+		want    *voltha.DeviceImageResponse
+		wantErr bool
+	}{
+		{
+			name: "request-for-single-device",
+			args: args{
+				ctx:     ctx,
+				request: newDeviceImagedRequest(agents[:1]),
+			},
+			want:    newImageResponse(agents[:1], voltha.ImageState_DOWNLOAD_SUCCEEDED, voltha.ImageState_IMAGE_COMMITTING, voltha.ImageState_NO_ERROR),
+			wantErr: false,
+		},
+		{
+			name: "request-for-multiple-devices",
+			args: args{
+				ctx:     ctx,
+				request: newDeviceImagedRequest(agents),
+			},
+			want:    newImageResponse(agents, voltha.ImageState_DOWNLOAD_SUCCEEDED, voltha.ImageState_IMAGE_COMMITTING, voltha.ImageState_NO_ERROR),
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if tt.name == "request-for-single-device" {
+				chnl := make(chan *kafka.RpcResponse, 10)
+				// Set expectation for the API invocation
+				mockICProxy.EXPECT().InvokeAsyncRPC(gomock.Any(),
+					"Commit_onu_image",
+					gomock.Any(),
+					gomock.Any(),
+					true,
+					gomock.Any(), gomock.Any()).Return(chnl)
+				// Send the expected response to channel from a goroutine
+				go func() {
+					reply := newImageStatusAdapterResponse(t, agents[:1], voltha.ImageState_DOWNLOAD_SUCCEEDED, voltha.ImageState_IMAGE_COMMITTING, voltha.ImageState_NO_ERROR)
+
+					chnl <- &kafka.RpcResponse{
+						MType: kafka.RpcSent,
+						Err:   nil,
+						Reply: reply,
+					}
+
+					chnl <- &kafka.RpcResponse{
+						MType: kafka.RpcReply,
+						Err:   nil,
+						Reply: reply,
+					}
+				}()
+			} else if tt.name == "request-for-multiple-devices" {
+				// Map to store per device kafka response channel
+				kafkaRespChans := make(map[string]chan *kafka.RpcResponse)
+				for _, id := range tt.args.request.DeviceId {
+					// Create a kafka response channel per device
+					chnl := make(chan *kafka.RpcResponse)
+
+					// Set expectation for the API invocation
+					mockICProxy.EXPECT().InvokeAsyncRPC(gomock.Any(),
+						"Commit_onu_image",
+						gomock.Any(),
+						gomock.Any(),
+						true,
+						id.Id, gomock.Any()).Return(chnl)
+
+					kafkaRespChans[id.Id] = chnl
+				}
+
+				// Send the expected response to channel from a goroutine
+				go func() {
+					for _, agent := range agents {
+						reply := newImageStatusAdapterResponse(t, agents, voltha.ImageState_DOWNLOAD_SUCCEEDED, voltha.ImageState_IMAGE_COMMITTING, voltha.ImageState_NO_ERROR)
+
+						kafkaRespChans[agent.deviceID] <- &kafka.RpcResponse{
+							MType: kafka.RpcSent,
+							Err:   nil,
+							Reply: reply,
+						}
+
+						kafkaRespChans[agent.deviceID] <- &kafka.RpcResponse{
+							MType: kafka.RpcReply,
+							Err:   nil,
+							Reply: reply,
+						}
+					}
+				}()
+			}
+			got, err := dat.deviceMgr.CommitImage(tt.args.ctx, tt.args.request)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("CommitImage() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !gotAllSuccess(got, tt.want) {
+				t.Errorf("CommitImage() got = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestManager_GetOnuImages(t *testing.T) {
+	type args struct {
+		ctx context.Context
+		id  *common.ID
+	}
+
+	ctx := context.Background()
+	dat, mockICProxy, agents := initialiseTest(ctx, t)
+
+	tests := []struct {
+		name    string
+		args    args
+		want    *voltha.OnuImages
+		wantErr bool
+	}{
+		{
+			name: "request-for-single-device",
+			args: args{
+				ctx: ctx,
+				id: &common.ID{
+					Id: agents[0].deviceID,
+				},
+			},
+			want: &voltha.OnuImages{
+				Items: []*voltha.OnuImage{{
+					Version:    version,
+					IsCommited: true,
+					IsActive:   true,
+					IsValid:    true,
+				}},
+			},
+			wantErr: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if tt.name == "request-for-single-device" {
+				chnl := make(chan *kafka.RpcResponse, 10)
+				// Set expectation for the API invocation
+				mockICProxy.EXPECT().InvokeAsyncRPC(gomock.Any(),
+					"Get_onu_images",
+					gomock.Any(),
+					gomock.Any(),
+					true,
+					gomock.Any(), gomock.Any()).Return(chnl)
+				// Send the expected response to channel from a goroutine
+				go func() {
+					reply := newOnuImagesResponse(t)
+					chnl <- &kafka.RpcResponse{
+						MType: kafka.RpcSent,
+						Err:   nil,
+						Reply: reply,
+					}
+
+					chnl <- &kafka.RpcResponse{
+						MType: kafka.RpcReply,
+						Err:   nil,
+						Reply: reply,
+					}
+				}()
+			}
+
+			got, err := dat.deviceMgr.GetOnuImages(tt.args.ctx, tt.args.id)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("GetOnuImages() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("GetOnuImages() got = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+// verify that we got all the wanted response (order not important)
+func gotAllSuccess(got, want *voltha.DeviceImageResponse) bool {
+	for _, imagestateGot := range got.DeviceImageStates {
+		found := false
+		for _, imageStateWant := range want.DeviceImageStates {
+			if reflect.DeepEqual(imagestateGot, imageStateWant) {
+				found = true
+			}
+		}
+
+		if !found {
+			return false
+		}
+	}
+
+	return true
+}
+
+func newDeviceImagedRequest(agents []*Agent) *voltha.DeviceImageRequest {
+	imgReq := &voltha.DeviceImageRequest{
+		Version:         version,
+		CommitOnSuccess: true,
+	}
+
+	for _, agent := range agents {
+		if agent != nil {
+			imgReq.DeviceId = append(imgReq.DeviceId, &common.ID{
+				Id: agent.deviceID,
+			})
+		}
+	}
+
+	return imgReq
+}
+
+func newDeviceImageDownloadRequest(agents []*Agent) *voltha.DeviceImageDownloadRequest {
+	imgDownReq := &voltha.DeviceImageDownloadRequest{
+		Image: &voltha.Image{
+			Version: version,
+			Url:     url,
+			Vendor:  vendor,
+		},
+		ActivateOnSuccess: true,
+		CommitOnSuccess:   true,
+	}
+
+	for _, agent := range agents {
+		if agent != nil {
+			imgDownReq.DeviceId = append(imgDownReq.DeviceId, &common.ID{
+				Id: agent.deviceID,
+			})
+		}
+	}
+
+	return imgDownReq
+}
+
+func newImageResponse(agents []*Agent,
+	downloadState voltha.ImageState_ImageDownloadState,
+	imageSate voltha.ImageState_ImageActivationState,
+	reason voltha.ImageState_ImageFailureReason) *voltha.DeviceImageResponse {
+	response := &voltha.DeviceImageResponse{}
+
+	for _, agent := range agents {
+		response.DeviceImageStates = append(response.DeviceImageStates, &voltha.DeviceImageState{
+			DeviceId: agent.deviceID,
+			ImageState: &voltha.ImageState{
+				Version:       version,
+				DownloadState: downloadState,
+				Reason:        reason,
+				ImageState:    imageSate,
+			},
+		})
+	}
+
+	return response
+}
+
+func newImageDownloadAdapterResponse(t *testing.T,
+	deviceID string,
+	downloadState voltha.ImageState_ImageDownloadState,
+	imageSate voltha.ImageState_ImageActivationState,
+	reason voltha.ImageState_ImageFailureReason) *any.Any {
+	reply, err := ptypes.MarshalAny(&voltha.DeviceImageResponse{
+		DeviceImageStates: []*voltha.DeviceImageState{{
+			DeviceId: deviceID,
+			ImageState: &voltha.ImageState{
+				Version:       version,
+				DownloadState: downloadState,
+				Reason:        reason,
+				ImageState:    imageSate,
+			},
+		}},
+	})
+	assert.Nil(t, err)
+	return reply
+}
+
+func newImageStatusAdapterResponse(t *testing.T,
+	agents []*Agent,
+	downloadState voltha.ImageState_ImageDownloadState,
+	imageSate voltha.ImageState_ImageActivationState,
+	reason voltha.ImageState_ImageFailureReason) *any.Any {
+	imgResponse := &voltha.DeviceImageResponse{}
+	for _, agent := range agents {
+		imgResponse.DeviceImageStates = append(imgResponse.DeviceImageStates, &voltha.DeviceImageState{
+			DeviceId: agent.deviceID,
+			ImageState: &voltha.ImageState{
+				Version:       version,
+				DownloadState: downloadState,
+				Reason:        reason,
+				ImageState:    imageSate,
+			},
+		})
+	}
+
+	reply, err := ptypes.MarshalAny(imgResponse)
+	assert.Nil(t, err)
+	return reply
+}
+
+func newOnuImagesResponse(t *testing.T) *any.Any {
+	onuImages := &voltha.OnuImages{
+		Items: []*voltha.OnuImage{{
+			Version:    version,
+			IsCommited: true,
+			IsActive:   true,
+			IsValid:    true,
+		}},
+	}
+
+	reply, err := ptypes.MarshalAny(onuImages)
+	assert.Nil(t, err)
+	return reply
+}
diff --git a/rw_core/core/device/mock_kafka.go b/rw_core/core/device/mock_kafka.go
new file mode 100644
index 0000000..9a08e70
--- /dev/null
+++ b/rw_core/core/device/mock_kafka.go
@@ -0,0 +1,216 @@
+/*
+ * Copyright 2021-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.
+ */
+
+// Code generated by MockGen. DO NOT EDIT.
+// Source: github.com/opencord/voltha-lib-go/v4/pkg/kafka (interfaces: InterContainerProxy)
+
+// Package device is a generated GoMock package.
+package device
+
+import (
+	context "context"
+	reflect "reflect"
+
+	gomock "github.com/golang/mock/gomock"
+	any "github.com/golang/protobuf/ptypes/any"
+	kafka "github.com/opencord/voltha-lib-go/v4/pkg/kafka"
+)
+
+// MockInterContainerProxy is a mock of InterContainerProxy interface.
+type MockInterContainerProxy struct {
+	ctrl     *gomock.Controller
+	recorder *MockInterContainerProxyMockRecorder
+}
+
+// MockInterContainerProxyMockRecorder is the mock recorder for MockInterContainerProxy.
+type MockInterContainerProxyMockRecorder struct {
+	mock *MockInterContainerProxy
+}
+
+// NewMockInterContainerProxy creates a new mock instance.
+func NewMockInterContainerProxy(ctrl *gomock.Controller) *MockInterContainerProxy {
+	mock := &MockInterContainerProxy{ctrl: ctrl}
+	mock.recorder = &MockInterContainerProxyMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use.
+func (m *MockInterContainerProxy) EXPECT() *MockInterContainerProxyMockRecorder {
+	return m.recorder
+}
+
+// DeleteTopic mocks base method.
+func (m *MockInterContainerProxy) DeleteTopic(arg0 context.Context, arg1 kafka.Topic) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "DeleteTopic", arg0, arg1)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// DeleteTopic indicates an expected call of DeleteTopic.
+func (mr *MockInterContainerProxyMockRecorder) DeleteTopic(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "DeleteTopic", reflect.TypeOf((*MockInterContainerProxy)(nil).DeleteTopic), arg0, arg1)
+}
+
+// EnableLivenessChannel mocks base method.
+func (m *MockInterContainerProxy) EnableLivenessChannel(arg0 context.Context, arg1 bool) chan bool {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "EnableLivenessChannel", arg0, arg1)
+	ret0, _ := ret[0].(chan bool)
+	return ret0
+}
+
+// EnableLivenessChannel indicates an expected call of EnableLivenessChannel.
+func (mr *MockInterContainerProxyMockRecorder) EnableLivenessChannel(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "EnableLivenessChannel", reflect.TypeOf((*MockInterContainerProxy)(nil).EnableLivenessChannel), arg0, arg1)
+}
+
+// GetDefaultTopic mocks base method.
+func (m *MockInterContainerProxy) GetDefaultTopic() *kafka.Topic {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "GetDefaultTopic")
+	ret0, _ := ret[0].(*kafka.Topic)
+	return ret0
+}
+
+// GetDefaultTopic indicates an expected call of GetDefaultTopic.
+func (mr *MockInterContainerProxyMockRecorder) GetDefaultTopic() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetDefaultTopic", reflect.TypeOf((*MockInterContainerProxy)(nil).GetDefaultTopic))
+}
+
+// InvokeAsyncRPC mocks base method.
+func (m *MockInterContainerProxy) InvokeAsyncRPC(arg0 context.Context, arg1 string, arg2, arg3 *kafka.Topic, arg4 bool, arg5 string, arg6 ...*kafka.KVArg) chan *kafka.RpcResponse {
+	m.ctrl.T.Helper()
+	varargs := []interface{}{arg0, arg1, arg2, arg3, arg4, arg5}
+	for _, a := range arg6 {
+		varargs = append(varargs, a)
+	}
+	ret := m.ctrl.Call(m, "InvokeAsyncRPC", varargs...)
+	ret0, _ := ret[0].(chan *kafka.RpcResponse)
+	return ret0
+}
+
+// InvokeAsyncRPC indicates an expected call of InvokeAsyncRPC.
+func (mr *MockInterContainerProxyMockRecorder) InvokeAsyncRPC(arg0, arg1, arg2, arg3, arg4, arg5 interface{}, arg6 ...interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	varargs := append([]interface{}{arg0, arg1, arg2, arg3, arg4, arg5}, arg6...)
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "InvokeAsyncRPC", reflect.TypeOf((*MockInterContainerProxy)(nil).InvokeAsyncRPC), varargs...)
+}
+
+// InvokeRPC mocks base method.
+func (m *MockInterContainerProxy) InvokeRPC(arg0 context.Context, arg1 string, arg2, arg3 *kafka.Topic, arg4 bool, arg5 string, arg6 ...*kafka.KVArg) (bool, *any.Any) {
+	m.ctrl.T.Helper()
+	varargs := []interface{}{arg0, arg1, arg2, arg3, arg4, arg5}
+	for _, a := range arg6 {
+		varargs = append(varargs, a)
+	}
+	ret := m.ctrl.Call(m, "InvokeRPC", varargs...)
+	ret0, _ := ret[0].(bool)
+	ret1, _ := ret[1].(*any.Any)
+	return ret0, ret1
+}
+
+// InvokeRPC indicates an expected call of InvokeRPC.
+func (mr *MockInterContainerProxyMockRecorder) InvokeRPC(arg0, arg1, arg2, arg3, arg4, arg5 interface{}, arg6 ...interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	varargs := append([]interface{}{arg0, arg1, arg2, arg3, arg4, arg5}, arg6...)
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "InvokeRPC", reflect.TypeOf((*MockInterContainerProxy)(nil).InvokeRPC), varargs...)
+}
+
+// SendLiveness mocks base method.
+func (m *MockInterContainerProxy) SendLiveness(arg0 context.Context) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "SendLiveness", arg0)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// SendLiveness indicates an expected call of SendLiveness.
+func (mr *MockInterContainerProxyMockRecorder) SendLiveness(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "SendLiveness", reflect.TypeOf((*MockInterContainerProxy)(nil).SendLiveness), arg0)
+}
+
+// Start mocks base method.
+func (m *MockInterContainerProxy) Start(arg0 context.Context) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "Start", arg0)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// Start indicates an expected call of Start.
+func (mr *MockInterContainerProxyMockRecorder) Start(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Start", reflect.TypeOf((*MockInterContainerProxy)(nil).Start), arg0)
+}
+
+// Stop mocks base method.
+func (m *MockInterContainerProxy) Stop(arg0 context.Context) {
+	m.ctrl.T.Helper()
+	m.ctrl.Call(m, "Stop", arg0)
+}
+
+// Stop indicates an expected call of Stop.
+func (mr *MockInterContainerProxyMockRecorder) Stop(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Stop", reflect.TypeOf((*MockInterContainerProxy)(nil).Stop), arg0)
+}
+
+// SubscribeWithDefaultRequestHandler mocks base method.
+func (m *MockInterContainerProxy) SubscribeWithDefaultRequestHandler(arg0 context.Context, arg1 kafka.Topic, arg2 int64) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "SubscribeWithDefaultRequestHandler", arg0, arg1, arg2)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// SubscribeWithDefaultRequestHandler indicates an expected call of SubscribeWithDefaultRequestHandler.
+func (mr *MockInterContainerProxyMockRecorder) SubscribeWithDefaultRequestHandler(arg0, arg1, arg2 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "SubscribeWithDefaultRequestHandler", reflect.TypeOf((*MockInterContainerProxy)(nil).SubscribeWithDefaultRequestHandler), arg0, arg1, arg2)
+}
+
+// SubscribeWithRequestHandlerInterface mocks base method.
+func (m *MockInterContainerProxy) SubscribeWithRequestHandlerInterface(arg0 context.Context, arg1 kafka.Topic, arg2 interface{}) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "SubscribeWithRequestHandlerInterface", arg0, arg1, arg2)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// SubscribeWithRequestHandlerInterface indicates an expected call of SubscribeWithRequestHandlerInterface.
+func (mr *MockInterContainerProxyMockRecorder) SubscribeWithRequestHandlerInterface(arg0, arg1, arg2 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "SubscribeWithRequestHandlerInterface", reflect.TypeOf((*MockInterContainerProxy)(nil).SubscribeWithRequestHandlerInterface), arg0, arg1, arg2)
+}
+
+// UnSubscribeFromRequestHandler mocks base method.
+func (m *MockInterContainerProxy) UnSubscribeFromRequestHandler(arg0 context.Context, arg1 kafka.Topic) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "UnSubscribeFromRequestHandler", arg0, arg1)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// UnSubscribeFromRequestHandler indicates an expected call of UnSubscribeFromRequestHandler.
+func (mr *MockInterContainerProxyMockRecorder) UnSubscribeFromRequestHandler(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "UnSubscribeFromRequestHandler", reflect.TypeOf((*MockInterContainerProxy)(nil).UnSubscribeFromRequestHandler), arg0, arg1)
+}
diff --git a/rw_core/core/device/remote/adapter_proxy.go b/rw_core/core/device/remote/adapter_proxy.go
index aba551e..1a187f8 100755
--- a/rw_core/core/device/remote/adapter_proxy.go
+++ b/rw_core/core/device/remote/adapter_proxy.go
@@ -19,6 +19,8 @@
 import (
 	"context"
 
+	"github.com/opencord/voltha-protos/v4/go/common"
+
 	"github.com/opencord/voltha-lib-go/v4/pkg/kafka"
 	"github.com/opencord/voltha-lib-go/v4/pkg/log"
 	"github.com/opencord/voltha-protos/v4/go/extension"
@@ -515,3 +517,88 @@
 	replyToTopic := ap.getCoreTopic()
 	return ap.sendRPC(ctx, rpc, toTopic, &replyToTopic, true, request.TargetId, args...)
 }
+
+// DownloadImageToOnuDevice invokes download image rpc
+func (ap *AdapterProxy) DownloadImageToOnuDevice(ctx context.Context, device *voltha.Device, downloadRequest *voltha.DeviceImageDownloadRequest) (chan *kafka.RpcResponse, error) {
+	logger.Debugw(ctx, "download-image-to-device", log.Fields{"device-id": device.Id, "image": downloadRequest.Image.Name})
+	rpc := "Download_onu_image"
+	toTopic, err := ap.getAdapterTopic(ctx, device.Id, device.Adapter)
+	if err != nil {
+		return nil, err
+	}
+	args := []*kafka.KVArg{
+		{Key: "deviceImageDownloadReq", Value: downloadRequest},
+	}
+	replyToTopic := ap.getCoreTopic()
+	return ap.sendRPC(ctx, rpc, toTopic, &replyToTopic, true, device.Id, args...)
+}
+
+func (ap *AdapterProxy) GetOnuImageStatus(ctx context.Context, device *voltha.Device, request *voltha.DeviceImageRequest) (chan *kafka.RpcResponse, error) {
+	logger.Debugw(ctx, "get-image-status", log.Fields{"device-id": device.Id})
+	rpc := "Get_onu_image_status"
+	toTopic, err := ap.getAdapterTopic(ctx, device.Id, device.Adapter)
+	if err != nil {
+		return nil, err
+	}
+	args := []*kafka.KVArg{
+		{Key: "deviceImageReq", Value: request},
+	}
+	replyToTopic := ap.getCoreTopic()
+	return ap.sendRPC(ctx, rpc, toTopic, &replyToTopic, true, device.Id, args...)
+}
+
+func (ap *AdapterProxy) ActivateOnuImage(ctx context.Context, device *voltha.Device, request *voltha.DeviceImageRequest) (chan *kafka.RpcResponse, error) {
+	logger.Debugw(ctx, "activate-onu-image", log.Fields{"device-id": device.Id})
+	rpc := "Activate_onu_image"
+	toTopic, err := ap.getAdapterTopic(ctx, device.Id, device.Adapter)
+	if err != nil {
+		return nil, err
+	}
+	args := []*kafka.KVArg{
+		{Key: "deviceImageReq", Value: request},
+	}
+	replyToTopic := ap.getCoreTopic()
+	return ap.sendRPC(ctx, rpc, toTopic, &replyToTopic, true, device.Id, args...)
+}
+
+func (ap *AdapterProxy) AbortImageUpgrade(ctx context.Context, device *voltha.Device, request *voltha.DeviceImageRequest) (chan *kafka.RpcResponse, error) {
+	logger.Debugw(ctx, "abort-image-upgrade", log.Fields{"device-id": device.Id})
+	rpc := "Abort_onu_image_upgrade"
+	toTopic, err := ap.getAdapterTopic(ctx, device.Id, device.Adapter)
+	if err != nil {
+		return nil, err
+	}
+	args := []*kafka.KVArg{
+		{Key: "deviceImageReq", Value: request},
+	}
+	replyToTopic := ap.getCoreTopic()
+	return ap.sendRPC(ctx, rpc, toTopic, &replyToTopic, true, device.Id, args...)
+}
+
+func (ap *AdapterProxy) CommitImage(ctx context.Context, device *voltha.Device, request *voltha.DeviceImageRequest) (chan *kafka.RpcResponse, error) {
+	logger.Debugw(ctx, "commit-image", log.Fields{"device-id": device.Id})
+	rpc := "Commit_onu_image"
+	toTopic, err := ap.getAdapterTopic(ctx, device.Id, device.Adapter)
+	if err != nil {
+		return nil, err
+	}
+	args := []*kafka.KVArg{
+		{Key: "deviceImageReq", Value: request},
+	}
+	replyToTopic := ap.getCoreTopic()
+	return ap.sendRPC(ctx, rpc, toTopic, &replyToTopic, true, device.Id, args...)
+}
+
+func (ap *AdapterProxy) GetOnuImages(ctx context.Context, device *voltha.Device, id *common.ID) (chan *kafka.RpcResponse, error) {
+	logger.Debugw(ctx, "get-onu-images", log.Fields{"device-id": device.Id})
+	rpc := "Get_onu_images"
+	toTopic, err := ap.getAdapterTopic(ctx, device.Id, device.Adapter)
+	if err != nil {
+		return nil, err
+	}
+	args := []*kafka.KVArg{
+		{Key: "deviceId", Value: id},
+	}
+	replyToTopic := ap.getCoreTopic()
+	return ap.sendRPC(ctx, rpc, toTopic, &replyToTopic, true, device.Id, args...)
+}
diff --git a/rw_core/mocks/adapter.go b/rw_core/mocks/adapter.go
index 79107c1..a8117fe 100644
--- a/rw_core/mocks/adapter.go
+++ b/rw_core/mocks/adapter.go
@@ -300,3 +300,33 @@
 func (ta *Adapter) SetDeleteAction(failDeleteDevice bool) {
 	ta.failDeleteDevice = failDeleteDevice
 }
+
+// Download_onu_image -
+func (ta *Adapter) Download_onu_image(ctx context.Context, request *voltha.DeviceImageDownloadRequest) (*voltha.DeviceImageResponse, error) { //nolint
+	return nil, nil
+}
+
+// Get_onu_image_status -
+func (ta *Adapter) Get_onu_image_status(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) { //nolint
+	return nil, nil
+}
+
+// Abort_onu_image_upgrade -
+func (ta *Adapter) Abort_onu_image_upgrade(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) { //nolint
+	return nil, nil
+}
+
+// Get_onu_images -
+func (ta *Adapter) Get_onu_images(ctx context.Context, deviceID string) (*voltha.OnuImages, error) { //nolint
+	return nil, nil
+}
+
+// Activate_onu_image -
+func (ta *Adapter) Activate_onu_image(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) { //nolint
+	return nil, nil
+}
+
+// Commit_onu_image -
+func (ta *Adapter) Commit_onu_image(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) { //nolint
+	return nil, nil
+}
diff --git a/rw_core/mocks/adapter_olt.go b/rw_core/mocks/adapter_olt.go
index e13e774..a07d073 100644
--- a/rw_core/mocks/adapter_olt.go
+++ b/rw_core/mocks/adapter_olt.go
@@ -295,3 +295,33 @@
 	_ = valueflag
 	return nil, errors.New("get-ext-value-not-implemented")
 }
+
+func (oltA *OLTAdapter) Download_onu_image(ctx context.Context, request *voltha.DeviceImageDownloadRequest) (*voltha.DeviceImageResponse, error) { //nolint
+	_ = request
+	return nil, errors.New("download-onu-image-not-implemented")
+}
+
+func (oltA *OLTAdapter) Get_onu_image_status(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) { //nolint
+	_ = in
+	return nil, errors.New("get-onu-image-not-implemented")
+}
+
+func (oltA *OLTAdapter) Abort_onu_image_upgrade(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) { //nolint
+	_ = in
+	return nil, errors.New("abort-onu-image-upgrade-not-implemented")
+}
+
+func (oltA *OLTAdapter) Get_onu_images(ctx context.Context, deviceID string) (*voltha.OnuImages, error) { //nolint
+	_ = deviceID
+	return nil, errors.New("get-onu-images-not-implemented")
+}
+
+func (oltA *OLTAdapter) Activate_onu_image(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) { //nolint
+	_ = in
+	return nil, errors.New("activate-onu-image-not-implemented")
+}
+
+func (oltA *OLTAdapter) Commit_onu_image(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) { //nolint
+	_ = in
+	return nil, errors.New("commit-onu-image-not-implemented")
+}
diff --git a/rw_core/mocks/adapter_onu.go b/rw_core/mocks/adapter_onu.go
index fc24a3b..b1b004b 100644
--- a/rw_core/mocks/adapter_onu.go
+++ b/rw_core/mocks/adapter_onu.go
@@ -199,3 +199,34 @@
 	_ = valueflag
 	return nil, errors.New("get-ext-value-not-implemented")
 }
+
+func (onuA *ONUAdapter) Download_onu_image(ctx context.Context, request *voltha.DeviceImageDownloadRequest) (*voltha.DeviceImageResponse, error) { //nolint
+	logger.Infof(ctx, "Download_onu_image")
+	_ = request
+	return nil, errors.New("download-onu-image-not-implemented")
+}
+
+func (onuA *ONUAdapter) Get_onu_image_status(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) { //nolint
+	_ = in
+	return nil, errors.New("get-onu-image-not-implemented")
+}
+
+func (onuA *ONUAdapter) Abort_onu_image_upgrade(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) { //nolint
+	_ = in
+	return nil, errors.New("abort-onu-image-upgrade-not-implemented")
+}
+
+func (onuA *ONUAdapter) Get_onu_images(ctx context.Context, deviceID string) (*voltha.OnuImages, error) { //nolint
+	_ = deviceID
+	return nil, errors.New("get-onu-images-not-implemented")
+}
+
+func (onuA *ONUAdapter) Activate_onu_image(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) { //nolint
+	_ = in
+	return nil, errors.New("activate-onu-image-not-implemented")
+}
+
+func (onuA *ONUAdapter) Commit_onu_image(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error) { //nolint
+	_ = in
+	return nil, errors.New("commit-onu-image-not-implemented")
+}
diff --git a/vendor/github.com/golang/mock/AUTHORS b/vendor/github.com/golang/mock/AUTHORS
new file mode 100644
index 0000000..660b8cc
--- /dev/null
+++ b/vendor/github.com/golang/mock/AUTHORS
@@ -0,0 +1,12 @@
+# This is the official list of GoMock authors for copyright purposes.
+# This file is distinct from the CONTRIBUTORS files.
+# See the latter for an explanation.
+
+# Names should be added to this file as
+#	Name or Organization <email address>
+# The email address is not required for organizations.
+
+# Please keep the list sorted.
+
+Alex Reece <awreece@gmail.com>
+Google Inc.
diff --git a/vendor/github.com/golang/mock/CONTRIBUTORS b/vendor/github.com/golang/mock/CONTRIBUTORS
new file mode 100644
index 0000000..def849c
--- /dev/null
+++ b/vendor/github.com/golang/mock/CONTRIBUTORS
@@ -0,0 +1,37 @@
+# This is the official list of people who can contribute (and typically
+# have contributed) code to the gomock repository.
+# The AUTHORS file lists the copyright holders; this file
+# lists people.  For example, Google employees are listed here
+# but not in AUTHORS, because Google holds the copyright.
+#
+# The submission process automatically checks to make sure
+# that people submitting code are listed in this file (by email address).
+#
+# Names should be added to this file only after verifying that
+# the individual or the individual's organization has agreed to
+# the appropriate Contributor License Agreement, found here:
+#
+#     http://code.google.com/legal/individual-cla-v1.0.html
+#     http://code.google.com/legal/corporate-cla-v1.0.html
+#
+# The agreement for individuals can be filled out on the web.
+#
+# When adding J Random Contributor's name to this file,
+# either J's name or J's organization's name should be
+# added to the AUTHORS file, depending on whether the
+# individual or corporate CLA was used.
+
+# Names should be added to this file like so:
+#     Name <email address>
+#
+# An entry with two email addresses specifies that the
+# first address should be used in the submit logs and
+# that the second address should be recognized as the
+# same person when interacting with Rietveld.
+
+# Please keep the list sorted.
+
+Aaron Jacobs <jacobsa@google.com> <aaronjjacobs@gmail.com>
+Alex Reece <awreece@gmail.com>
+David Symonds <dsymonds@golang.org>
+Ryan Barrett <ryanb@google.com>
diff --git a/vendor/github.com/golang/mock/LICENSE b/vendor/github.com/golang/mock/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/vendor/github.com/golang/mock/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
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+      direction or management of such entity, whether by contract or
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+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
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+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
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+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
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+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
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+      incurred by, or claims asserted against, such Contributor by reason
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+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
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+   Copyright [yyyy] [name of copyright owner]
+
+   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
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+       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.
diff --git a/vendor/github.com/golang/mock/gomock/call.go b/vendor/github.com/golang/mock/gomock/call.go
new file mode 100644
index 0000000..b18cc2d
--- /dev/null
+++ b/vendor/github.com/golang/mock/gomock/call.go
@@ -0,0 +1,433 @@
+// Copyright 2010 Google Inc.
+//
+// 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 gomock
+
+import (
+	"fmt"
+	"reflect"
+	"strconv"
+	"strings"
+)
+
+// Call represents an expected call to a mock.
+type Call struct {
+	t TestHelper // for triggering test failures on invalid call setup
+
+	receiver   interface{}  // the receiver of the method call
+	method     string       // the name of the method
+	methodType reflect.Type // the type of the method
+	args       []Matcher    // the args
+	origin     string       // file and line number of call setup
+
+	preReqs []*Call // prerequisite calls
+
+	// Expectations
+	minCalls, maxCalls int
+
+	numCalls int // actual number made
+
+	// actions are called when this Call is called. Each action gets the args and
+	// can set the return values by returning a non-nil slice. Actions run in the
+	// order they are created.
+	actions []func([]interface{}) []interface{}
+}
+
+// newCall creates a *Call. It requires the method type in order to support
+// unexported methods.
+func newCall(t TestHelper, receiver interface{}, method string, methodType reflect.Type, args ...interface{}) *Call {
+	t.Helper()
+
+	// TODO: check arity, types.
+	margs := make([]Matcher, len(args))
+	for i, arg := range args {
+		if m, ok := arg.(Matcher); ok {
+			margs[i] = m
+		} else if arg == nil {
+			// Handle nil specially so that passing a nil interface value
+			// will match the typed nils of concrete args.
+			margs[i] = Nil()
+		} else {
+			margs[i] = Eq(arg)
+		}
+	}
+
+	// callerInfo's skip should be updated if the number of calls between the user's test
+	// and this line changes, i.e. this code is wrapped in another anonymous function.
+	// 0 is us, 1 is RecordCallWithMethodType(), 2 is the generated recorder, and 3 is the user's test.
+	origin := callerInfo(3)
+	actions := []func([]interface{}) []interface{}{func([]interface{}) []interface{} {
+		// Synthesize the zero value for each of the return args' types.
+		rets := make([]interface{}, methodType.NumOut())
+		for i := 0; i < methodType.NumOut(); i++ {
+			rets[i] = reflect.Zero(methodType.Out(i)).Interface()
+		}
+		return rets
+	}}
+	return &Call{t: t, receiver: receiver, method: method, methodType: methodType,
+		args: margs, origin: origin, minCalls: 1, maxCalls: 1, actions: actions}
+}
+
+// AnyTimes allows the expectation to be called 0 or more times
+func (c *Call) AnyTimes() *Call {
+	c.minCalls, c.maxCalls = 0, 1e8 // close enough to infinity
+	return c
+}
+
+// MinTimes requires the call to occur at least n times. If AnyTimes or MaxTimes have not been called or if MaxTimes
+// was previously called with 1, MinTimes also sets the maximum number of calls to infinity.
+func (c *Call) MinTimes(n int) *Call {
+	c.minCalls = n
+	if c.maxCalls == 1 {
+		c.maxCalls = 1e8
+	}
+	return c
+}
+
+// MaxTimes limits the number of calls to n times. If AnyTimes or MinTimes have not been called or if MinTimes was
+// previously called with 1, MaxTimes also sets the minimum number of calls to 0.
+func (c *Call) MaxTimes(n int) *Call {
+	c.maxCalls = n
+	if c.minCalls == 1 {
+		c.minCalls = 0
+	}
+	return c
+}
+
+// DoAndReturn declares the action to run when the call is matched.
+// The return values from this function are returned by the mocked function.
+// It takes an interface{} argument to support n-arity functions.
+func (c *Call) DoAndReturn(f interface{}) *Call {
+	// TODO: Check arity and types here, rather than dying badly elsewhere.
+	v := reflect.ValueOf(f)
+
+	c.addAction(func(args []interface{}) []interface{} {
+		vargs := make([]reflect.Value, len(args))
+		ft := v.Type()
+		for i := 0; i < len(args); i++ {
+			if args[i] != nil {
+				vargs[i] = reflect.ValueOf(args[i])
+			} else {
+				// Use the zero value for the arg.
+				vargs[i] = reflect.Zero(ft.In(i))
+			}
+		}
+		vrets := v.Call(vargs)
+		rets := make([]interface{}, len(vrets))
+		for i, ret := range vrets {
+			rets[i] = ret.Interface()
+		}
+		return rets
+	})
+	return c
+}
+
+// Do declares the action to run when the call is matched. The function's
+// return values are ignored to retain backward compatibility. To use the
+// return values call DoAndReturn.
+// It takes an interface{} argument to support n-arity functions.
+func (c *Call) Do(f interface{}) *Call {
+	// TODO: Check arity and types here, rather than dying badly elsewhere.
+	v := reflect.ValueOf(f)
+
+	c.addAction(func(args []interface{}) []interface{} {
+		vargs := make([]reflect.Value, len(args))
+		ft := v.Type()
+		for i := 0; i < len(args); i++ {
+			if args[i] != nil {
+				vargs[i] = reflect.ValueOf(args[i])
+			} else {
+				// Use the zero value for the arg.
+				vargs[i] = reflect.Zero(ft.In(i))
+			}
+		}
+		v.Call(vargs)
+		return nil
+	})
+	return c
+}
+
+// Return declares the values to be returned by the mocked function call.
+func (c *Call) Return(rets ...interface{}) *Call {
+	c.t.Helper()
+
+	mt := c.methodType
+	if len(rets) != mt.NumOut() {
+		c.t.Fatalf("wrong number of arguments to Return for %T.%v: got %d, want %d [%s]",
+			c.receiver, c.method, len(rets), mt.NumOut(), c.origin)
+	}
+	for i, ret := range rets {
+		if got, want := reflect.TypeOf(ret), mt.Out(i); got == want {
+			// Identical types; nothing to do.
+		} else if got == nil {
+			// Nil needs special handling.
+			switch want.Kind() {
+			case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
+				// ok
+			default:
+				c.t.Fatalf("argument %d to Return for %T.%v is nil, but %v is not nillable [%s]",
+					i, c.receiver, c.method, want, c.origin)
+			}
+		} else if got.AssignableTo(want) {
+			// Assignable type relation. Make the assignment now so that the generated code
+			// can return the values with a type assertion.
+			v := reflect.New(want).Elem()
+			v.Set(reflect.ValueOf(ret))
+			rets[i] = v.Interface()
+		} else {
+			c.t.Fatalf("wrong type of argument %d to Return for %T.%v: %v is not assignable to %v [%s]",
+				i, c.receiver, c.method, got, want, c.origin)
+		}
+	}
+
+	c.addAction(func([]interface{}) []interface{} {
+		return rets
+	})
+
+	return c
+}
+
+// Times declares the exact number of times a function call is expected to be executed.
+func (c *Call) Times(n int) *Call {
+	c.minCalls, c.maxCalls = n, n
+	return c
+}
+
+// SetArg declares an action that will set the nth argument's value,
+// indirected through a pointer. Or, in the case of a slice, SetArg
+// will copy value's elements into the nth argument.
+func (c *Call) SetArg(n int, value interface{}) *Call {
+	c.t.Helper()
+
+	mt := c.methodType
+	// TODO: This will break on variadic methods.
+	// We will need to check those at invocation time.
+	if n < 0 || n >= mt.NumIn() {
+		c.t.Fatalf("SetArg(%d, ...) called for a method with %d args [%s]",
+			n, mt.NumIn(), c.origin)
+	}
+	// Permit setting argument through an interface.
+	// In the interface case, we don't (nay, can't) check the type here.
+	at := mt.In(n)
+	switch at.Kind() {
+	case reflect.Ptr:
+		dt := at.Elem()
+		if vt := reflect.TypeOf(value); !vt.AssignableTo(dt) {
+			c.t.Fatalf("SetArg(%d, ...) argument is a %v, not assignable to %v [%s]",
+				n, vt, dt, c.origin)
+		}
+	case reflect.Interface:
+		// nothing to do
+	case reflect.Slice:
+		// nothing to do
+	default:
+		c.t.Fatalf("SetArg(%d, ...) referring to argument of non-pointer non-interface non-slice type %v [%s]",
+			n, at, c.origin)
+	}
+
+	c.addAction(func(args []interface{}) []interface{} {
+		v := reflect.ValueOf(value)
+		switch reflect.TypeOf(args[n]).Kind() {
+		case reflect.Slice:
+			setSlice(args[n], v)
+		default:
+			reflect.ValueOf(args[n]).Elem().Set(v)
+		}
+		return nil
+	})
+	return c
+}
+
+// isPreReq returns true if other is a direct or indirect prerequisite to c.
+func (c *Call) isPreReq(other *Call) bool {
+	for _, preReq := range c.preReqs {
+		if other == preReq || preReq.isPreReq(other) {
+			return true
+		}
+	}
+	return false
+}
+
+// After declares that the call may only match after preReq has been exhausted.
+func (c *Call) After(preReq *Call) *Call {
+	c.t.Helper()
+
+	if c == preReq {
+		c.t.Fatalf("A call isn't allowed to be its own prerequisite")
+	}
+	if preReq.isPreReq(c) {
+		c.t.Fatalf("Loop in call order: %v is a prerequisite to %v (possibly indirectly).", c, preReq)
+	}
+
+	c.preReqs = append(c.preReqs, preReq)
+	return c
+}
+
+// Returns true if the minimum number of calls have been made.
+func (c *Call) satisfied() bool {
+	return c.numCalls >= c.minCalls
+}
+
+// Returns true if the maximum number of calls have been made.
+func (c *Call) exhausted() bool {
+	return c.numCalls >= c.maxCalls
+}
+
+func (c *Call) String() string {
+	args := make([]string, len(c.args))
+	for i, arg := range c.args {
+		args[i] = arg.String()
+	}
+	arguments := strings.Join(args, ", ")
+	return fmt.Sprintf("%T.%v(%s) %s", c.receiver, c.method, arguments, c.origin)
+}
+
+// Tests if the given call matches the expected call.
+// If yes, returns nil. If no, returns error with message explaining why it does not match.
+func (c *Call) matches(args []interface{}) error {
+	if !c.methodType.IsVariadic() {
+		if len(args) != len(c.args) {
+			return fmt.Errorf("expected call at %s has the wrong number of arguments. Got: %d, want: %d",
+				c.origin, len(args), len(c.args))
+		}
+
+		for i, m := range c.args {
+			if !m.Matches(args[i]) {
+				return fmt.Errorf(
+					"expected call at %s doesn't match the argument at index %d.\nGot: %v\nWant: %v",
+					c.origin, i, formatGottenArg(m, args[i]), m,
+				)
+			}
+		}
+	} else {
+		if len(c.args) < c.methodType.NumIn()-1 {
+			return fmt.Errorf("expected call at %s has the wrong number of matchers. Got: %d, want: %d",
+				c.origin, len(c.args), c.methodType.NumIn()-1)
+		}
+		if len(c.args) != c.methodType.NumIn() && len(args) != len(c.args) {
+			return fmt.Errorf("expected call at %s has the wrong number of arguments. Got: %d, want: %d",
+				c.origin, len(args), len(c.args))
+		}
+		if len(args) < len(c.args)-1 {
+			return fmt.Errorf("expected call at %s has the wrong number of arguments. Got: %d, want: greater than or equal to %d",
+				c.origin, len(args), len(c.args)-1)
+		}
+
+		for i, m := range c.args {
+			if i < c.methodType.NumIn()-1 {
+				// Non-variadic args
+				if !m.Matches(args[i]) {
+					return fmt.Errorf("expected call at %s doesn't match the argument at index %s.\nGot: %v\nWant: %v",
+						c.origin, strconv.Itoa(i), formatGottenArg(m, args[i]), m)
+				}
+				continue
+			}
+			// The last arg has a possibility of a variadic argument, so let it branch
+
+			// sample: Foo(a int, b int, c ...int)
+			if i < len(c.args) && i < len(args) {
+				if m.Matches(args[i]) {
+					// Got Foo(a, b, c) want Foo(matcherA, matcherB, gomock.Any())
+					// Got Foo(a, b, c) want Foo(matcherA, matcherB, someSliceMatcher)
+					// Got Foo(a, b, c) want Foo(matcherA, matcherB, matcherC)
+					// Got Foo(a, b) want Foo(matcherA, matcherB)
+					// Got Foo(a, b, c, d) want Foo(matcherA, matcherB, matcherC, matcherD)
+					continue
+				}
+			}
+
+			// The number of actual args don't match the number of matchers,
+			// or the last matcher is a slice and the last arg is not.
+			// If this function still matches it is because the last matcher
+			// matches all the remaining arguments or the lack of any.
+			// Convert the remaining arguments, if any, into a slice of the
+			// expected type.
+			vargsType := c.methodType.In(c.methodType.NumIn() - 1)
+			vargs := reflect.MakeSlice(vargsType, 0, len(args)-i)
+			for _, arg := range args[i:] {
+				vargs = reflect.Append(vargs, reflect.ValueOf(arg))
+			}
+			if m.Matches(vargs.Interface()) {
+				// Got Foo(a, b, c, d, e) want Foo(matcherA, matcherB, gomock.Any())
+				// Got Foo(a, b, c, d, e) want Foo(matcherA, matcherB, someSliceMatcher)
+				// Got Foo(a, b) want Foo(matcherA, matcherB, gomock.Any())
+				// Got Foo(a, b) want Foo(matcherA, matcherB, someEmptySliceMatcher)
+				break
+			}
+			// Wrong number of matchers or not match. Fail.
+			// Got Foo(a, b) want Foo(matcherA, matcherB, matcherC, matcherD)
+			// Got Foo(a, b, c) want Foo(matcherA, matcherB, matcherC, matcherD)
+			// Got Foo(a, b, c, d) want Foo(matcherA, matcherB, matcherC, matcherD, matcherE)
+			// Got Foo(a, b, c, d, e) want Foo(matcherA, matcherB, matcherC, matcherD)
+			// Got Foo(a, b, c) want Foo(matcherA, matcherB)
+
+			return fmt.Errorf("expected call at %s doesn't match the argument at index %s.\nGot: %v\nWant: %v",
+				c.origin, strconv.Itoa(i), formatGottenArg(m, args[i:]), c.args[i])
+		}
+	}
+
+	// Check that all prerequisite calls have been satisfied.
+	for _, preReqCall := range c.preReqs {
+		if !preReqCall.satisfied() {
+			return fmt.Errorf("Expected call at %s doesn't have a prerequisite call satisfied:\n%v\nshould be called before:\n%v",
+				c.origin, preReqCall, c)
+		}
+	}
+
+	// Check that the call is not exhausted.
+	if c.exhausted() {
+		return fmt.Errorf("expected call at %s has already been called the max number of times", c.origin)
+	}
+
+	return nil
+}
+
+// dropPrereqs tells the expected Call to not re-check prerequisite calls any
+// longer, and to return its current set.
+func (c *Call) dropPrereqs() (preReqs []*Call) {
+	preReqs = c.preReqs
+	c.preReqs = nil
+	return
+}
+
+func (c *Call) call() []func([]interface{}) []interface{} {
+	c.numCalls++
+	return c.actions
+}
+
+// InOrder declares that the given calls should occur in order.
+func InOrder(calls ...*Call) {
+	for i := 1; i < len(calls); i++ {
+		calls[i].After(calls[i-1])
+	}
+}
+
+func setSlice(arg interface{}, v reflect.Value) {
+	va := reflect.ValueOf(arg)
+	for i := 0; i < v.Len(); i++ {
+		va.Index(i).Set(v.Index(i))
+	}
+}
+
+func (c *Call) addAction(action func([]interface{}) []interface{}) {
+	c.actions = append(c.actions, action)
+}
+
+func formatGottenArg(m Matcher, arg interface{}) string {
+	got := fmt.Sprintf("%v", arg)
+	if gs, ok := m.(GotFormatter); ok {
+		got = gs.Got(arg)
+	}
+	return got
+}
diff --git a/vendor/github.com/golang/mock/gomock/callset.go b/vendor/github.com/golang/mock/gomock/callset.go
new file mode 100644
index 0000000..e4e85d6
--- /dev/null
+++ b/vendor/github.com/golang/mock/gomock/callset.go
@@ -0,0 +1,112 @@
+// Copyright 2011 Google Inc.
+//
+// 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 gomock
+
+import (
+	"bytes"
+	"fmt"
+)
+
+// callSet represents a set of expected calls, indexed by receiver and method
+// name.
+type callSet struct {
+	// Calls that are still expected.
+	expected map[callSetKey][]*Call
+	// Calls that have been exhausted.
+	exhausted map[callSetKey][]*Call
+}
+
+// callSetKey is the key in the maps in callSet
+type callSetKey struct {
+	receiver interface{}
+	fname    string
+}
+
+func newCallSet() *callSet {
+	return &callSet{make(map[callSetKey][]*Call), make(map[callSetKey][]*Call)}
+}
+
+// Add adds a new expected call.
+func (cs callSet) Add(call *Call) {
+	key := callSetKey{call.receiver, call.method}
+	m := cs.expected
+	if call.exhausted() {
+		m = cs.exhausted
+	}
+	m[key] = append(m[key], call)
+}
+
+// Remove removes an expected call.
+func (cs callSet) Remove(call *Call) {
+	key := callSetKey{call.receiver, call.method}
+	calls := cs.expected[key]
+	for i, c := range calls {
+		if c == call {
+			// maintain order for remaining calls
+			cs.expected[key] = append(calls[:i], calls[i+1:]...)
+			cs.exhausted[key] = append(cs.exhausted[key], call)
+			break
+		}
+	}
+}
+
+// FindMatch searches for a matching call. Returns error with explanation message if no call matched.
+func (cs callSet) FindMatch(receiver interface{}, method string, args []interface{}) (*Call, error) {
+	key := callSetKey{receiver, method}
+
+	// Search through the expected calls.
+	expected := cs.expected[key]
+	var callsErrors bytes.Buffer
+	for _, call := range expected {
+		err := call.matches(args)
+		if err != nil {
+			_, _ = fmt.Fprintf(&callsErrors, "\n%v", err)
+		} else {
+			return call, nil
+		}
+	}
+
+	// If we haven't found a match then search through the exhausted calls so we
+	// get useful error messages.
+	exhausted := cs.exhausted[key]
+	for _, call := range exhausted {
+		if err := call.matches(args); err != nil {
+			_, _ = fmt.Fprintf(&callsErrors, "\n%v", err)
+			continue
+		}
+		_, _ = fmt.Fprintf(
+			&callsErrors, "all expected calls for method %q have been exhausted", method,
+		)
+	}
+
+	if len(expected)+len(exhausted) == 0 {
+		_, _ = fmt.Fprintf(&callsErrors, "there are no expected calls of the method %q for that receiver", method)
+	}
+
+	return nil, fmt.Errorf(callsErrors.String())
+}
+
+// Failures returns the calls that are not satisfied.
+func (cs callSet) Failures() []*Call {
+	failures := make([]*Call, 0, len(cs.expected))
+	for _, calls := range cs.expected {
+		for _, call := range calls {
+			if !call.satisfied() {
+				failures = append(failures, call)
+			}
+		}
+	}
+	return failures
+}
diff --git a/vendor/github.com/golang/mock/gomock/controller.go b/vendor/github.com/golang/mock/gomock/controller.go
new file mode 100644
index 0000000..3b65690
--- /dev/null
+++ b/vendor/github.com/golang/mock/gomock/controller.go
@@ -0,0 +1,333 @@
+// Copyright 2010 Google Inc.
+//
+// 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 gomock is a mock framework for Go.
+//
+// Standard usage:
+//   (1) Define an interface that you wish to mock.
+//         type MyInterface interface {
+//           SomeMethod(x int64, y string)
+//         }
+//   (2) Use mockgen to generate a mock from the interface.
+//   (3) Use the mock in a test:
+//         func TestMyThing(t *testing.T) {
+//           mockCtrl := gomock.NewController(t)
+//           defer mockCtrl.Finish()
+//
+//           mockObj := something.NewMockMyInterface(mockCtrl)
+//           mockObj.EXPECT().SomeMethod(4, "blah")
+//           // pass mockObj to a real object and play with it.
+//         }
+//
+// By default, expected calls are not enforced to run in any particular order.
+// Call order dependency can be enforced by use of InOrder and/or Call.After.
+// Call.After can create more varied call order dependencies, but InOrder is
+// often more convenient.
+//
+// The following examples create equivalent call order dependencies.
+//
+// Example of using Call.After to chain expected call order:
+//
+//     firstCall := mockObj.EXPECT().SomeMethod(1, "first")
+//     secondCall := mockObj.EXPECT().SomeMethod(2, "second").After(firstCall)
+//     mockObj.EXPECT().SomeMethod(3, "third").After(secondCall)
+//
+// Example of using InOrder to declare expected call order:
+//
+//     gomock.InOrder(
+//         mockObj.EXPECT().SomeMethod(1, "first"),
+//         mockObj.EXPECT().SomeMethod(2, "second"),
+//         mockObj.EXPECT().SomeMethod(3, "third"),
+//     )
+package gomock
+
+import (
+	"context"
+	"fmt"
+	"reflect"
+	"runtime"
+	"sync"
+)
+
+// A TestReporter is something that can be used to report test failures.  It
+// is satisfied by the standard library's *testing.T.
+type TestReporter interface {
+	Errorf(format string, args ...interface{})
+	Fatalf(format string, args ...interface{})
+}
+
+// TestHelper is a TestReporter that has the Helper method.  It is satisfied
+// by the standard library's *testing.T.
+type TestHelper interface {
+	TestReporter
+	Helper()
+}
+
+// cleanuper is used to check if TestHelper also has the `Cleanup` method. A
+// common pattern is to pass in a `*testing.T` to
+// `NewController(t TestReporter)`. In Go 1.14+, `*testing.T` has a cleanup
+// method. This can be utilized to call `Finish()` so the caller of this library
+// does not have to.
+type cleanuper interface {
+	Cleanup(func())
+}
+
+// A Controller represents the top-level control of a mock ecosystem.  It
+// defines the scope and lifetime of mock objects, as well as their
+// expectations.  It is safe to call Controller's methods from multiple
+// goroutines. Each test should create a new Controller and invoke Finish via
+// defer.
+//
+//   func TestFoo(t *testing.T) {
+//     ctrl := gomock.NewController(t)
+//     defer ctrl.Finish()
+//     // ..
+//   }
+//
+//   func TestBar(t *testing.T) {
+//     t.Run("Sub-Test-1", st) {
+//       ctrl := gomock.NewController(st)
+//       defer ctrl.Finish()
+//       // ..
+//     })
+//     t.Run("Sub-Test-2", st) {
+//       ctrl := gomock.NewController(st)
+//       defer ctrl.Finish()
+//       // ..
+//     })
+//   })
+type Controller struct {
+	// T should only be called within a generated mock. It is not intended to
+	// be used in user code and may be changed in future versions. T is the
+	// TestReporter passed in when creating the Controller via NewController.
+	// If the TestReporter does not implement a TestHelper it will be wrapped
+	// with a nopTestHelper.
+	T             TestHelper
+	mu            sync.Mutex
+	expectedCalls *callSet
+	finished      bool
+}
+
+// NewController returns a new Controller. It is the preferred way to create a
+// Controller.
+//
+// New in go1.14+, if you are passing a *testing.T into this function you no
+// longer need to call ctrl.Finish() in your test methods
+func NewController(t TestReporter) *Controller {
+	h, ok := t.(TestHelper)
+	if !ok {
+		h = &nopTestHelper{t}
+	}
+	ctrl := &Controller{
+		T:             h,
+		expectedCalls: newCallSet(),
+	}
+	if c, ok := isCleanuper(ctrl.T); ok {
+		c.Cleanup(func() {
+			ctrl.T.Helper()
+			ctrl.finish(true, nil)
+		})
+	}
+
+	return ctrl
+}
+
+type cancelReporter struct {
+	t      TestHelper
+	cancel func()
+}
+
+func (r *cancelReporter) Errorf(format string, args ...interface{}) {
+	r.t.Errorf(format, args...)
+}
+func (r *cancelReporter) Fatalf(format string, args ...interface{}) {
+	defer r.cancel()
+	r.t.Fatalf(format, args...)
+}
+
+func (r *cancelReporter) Helper() {
+	r.t.Helper()
+}
+
+// WithContext returns a new Controller and a Context, which is cancelled on any
+// fatal failure.
+func WithContext(ctx context.Context, t TestReporter) (*Controller, context.Context) {
+	h, ok := t.(TestHelper)
+	if !ok {
+		h = &nopTestHelper{t: t}
+	}
+
+	ctx, cancel := context.WithCancel(ctx)
+	return NewController(&cancelReporter{t: h, cancel: cancel}), ctx
+}
+
+type nopTestHelper struct {
+	t TestReporter
+}
+
+func (h *nopTestHelper) Errorf(format string, args ...interface{}) {
+	h.t.Errorf(format, args...)
+}
+func (h *nopTestHelper) Fatalf(format string, args ...interface{}) {
+	h.t.Fatalf(format, args...)
+}
+
+func (h nopTestHelper) Helper() {}
+
+// RecordCall is called by a mock. It should not be called by user code.
+func (ctrl *Controller) RecordCall(receiver interface{}, method string, args ...interface{}) *Call {
+	ctrl.T.Helper()
+
+	recv := reflect.ValueOf(receiver)
+	for i := 0; i < recv.Type().NumMethod(); i++ {
+		if recv.Type().Method(i).Name == method {
+			return ctrl.RecordCallWithMethodType(receiver, method, recv.Method(i).Type(), args...)
+		}
+	}
+	ctrl.T.Fatalf("gomock: failed finding method %s on %T", method, receiver)
+	panic("unreachable")
+}
+
+// RecordCallWithMethodType is called by a mock. It should not be called by user code.
+func (ctrl *Controller) RecordCallWithMethodType(receiver interface{}, method string, methodType reflect.Type, args ...interface{}) *Call {
+	ctrl.T.Helper()
+
+	call := newCall(ctrl.T, receiver, method, methodType, args...)
+
+	ctrl.mu.Lock()
+	defer ctrl.mu.Unlock()
+	ctrl.expectedCalls.Add(call)
+
+	return call
+}
+
+// Call is called by a mock. It should not be called by user code.
+func (ctrl *Controller) Call(receiver interface{}, method string, args ...interface{}) []interface{} {
+	ctrl.T.Helper()
+
+	// Nest this code so we can use defer to make sure the lock is released.
+	actions := func() []func([]interface{}) []interface{} {
+		ctrl.T.Helper()
+		ctrl.mu.Lock()
+		defer ctrl.mu.Unlock()
+
+		expected, err := ctrl.expectedCalls.FindMatch(receiver, method, args)
+		if err != nil {
+			// callerInfo's skip should be updated if the number of calls between the user's test
+			// and this line changes, i.e. this code is wrapped in another anonymous function.
+			// 0 is us, 1 is controller.Call(), 2 is the generated mock, and 3 is the user's test.
+			origin := callerInfo(3)
+			ctrl.T.Fatalf("Unexpected call to %T.%v(%v) at %s because: %s", receiver, method, args, origin, err)
+		}
+
+		// Two things happen here:
+		// * the matching call no longer needs to check prerequite calls,
+		// * and the prerequite calls are no longer expected, so remove them.
+		preReqCalls := expected.dropPrereqs()
+		for _, preReqCall := range preReqCalls {
+			ctrl.expectedCalls.Remove(preReqCall)
+		}
+
+		actions := expected.call()
+		if expected.exhausted() {
+			ctrl.expectedCalls.Remove(expected)
+		}
+		return actions
+	}()
+
+	var rets []interface{}
+	for _, action := range actions {
+		if r := action(args); r != nil {
+			rets = r
+		}
+	}
+
+	return rets
+}
+
+// Finish checks to see if all the methods that were expected to be called
+// were called. It should be invoked for each Controller. It is not idempotent
+// and therefore can only be invoked once.
+func (ctrl *Controller) Finish() {
+	// If we're currently panicking, probably because this is a deferred call.
+	// This must be recovered in the deferred function.
+	err := recover()
+	ctrl.finish(false, err)
+}
+
+func (ctrl *Controller) finish(cleanup bool, panicErr interface{}) {
+	ctrl.T.Helper()
+
+	ctrl.mu.Lock()
+	defer ctrl.mu.Unlock()
+
+	if ctrl.finished {
+		if _, ok := isCleanuper(ctrl.T); !ok {
+			ctrl.T.Fatalf("Controller.Finish was called more than once. It has to be called exactly once.")
+		}
+		return
+	}
+	ctrl.finished = true
+
+	// Short-circuit, pass through the panic.
+	if panicErr != nil {
+		panic(panicErr)
+	}
+
+	// Check that all remaining expected calls are satisfied.
+	failures := ctrl.expectedCalls.Failures()
+	for _, call := range failures {
+		ctrl.T.Errorf("missing call(s) to %v", call)
+	}
+	if len(failures) != 0 {
+		if !cleanup {
+			ctrl.T.Fatalf("aborting test due to missing call(s)")
+			return
+		}
+		ctrl.T.Errorf("aborting test due to missing call(s)")
+	}
+}
+
+// callerInfo returns the file:line of the call site. skip is the number
+// of stack frames to skip when reporting. 0 is callerInfo's call site.
+func callerInfo(skip int) string {
+	if _, file, line, ok := runtime.Caller(skip + 1); ok {
+		return fmt.Sprintf("%s:%d", file, line)
+	}
+	return "unknown file"
+}
+
+// isCleanuper checks it if t's base TestReporter has a Cleanup method.
+func isCleanuper(t TestReporter) (cleanuper, bool) {
+	tr := unwrapTestReporter(t)
+	c, ok := tr.(cleanuper)
+	return c, ok
+}
+
+// unwrapTestReporter unwraps TestReporter to the base implementation.
+func unwrapTestReporter(t TestReporter) TestReporter {
+	tr := t
+	switch nt := t.(type) {
+	case *cancelReporter:
+		tr = nt.t
+		if h, check := tr.(*nopTestHelper); check {
+			tr = h.t
+		}
+	case *nopTestHelper:
+		tr = nt.t
+	default:
+		// not wrapped
+	}
+	return tr
+}
diff --git a/vendor/github.com/golang/mock/gomock/matchers.go b/vendor/github.com/golang/mock/gomock/matchers.go
new file mode 100644
index 0000000..770aba5
--- /dev/null
+++ b/vendor/github.com/golang/mock/gomock/matchers.go
@@ -0,0 +1,269 @@
+// Copyright 2010 Google Inc.
+//
+// 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 gomock
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+)
+
+// A Matcher is a representation of a class of values.
+// It is used to represent the valid or expected arguments to a mocked method.
+type Matcher interface {
+	// Matches returns whether x is a match.
+	Matches(x interface{}) bool
+
+	// String describes what the matcher matches.
+	String() string
+}
+
+// WantFormatter modifies the given Matcher's String() method to the given
+// Stringer. This allows for control on how the "Want" is formatted when
+// printing .
+func WantFormatter(s fmt.Stringer, m Matcher) Matcher {
+	type matcher interface {
+		Matches(x interface{}) bool
+	}
+
+	return struct {
+		matcher
+		fmt.Stringer
+	}{
+		matcher:  m,
+		Stringer: s,
+	}
+}
+
+// StringerFunc type is an adapter to allow the use of ordinary functions as
+// a Stringer. If f is a function with the appropriate signature,
+// StringerFunc(f) is a Stringer that calls f.
+type StringerFunc func() string
+
+// String implements fmt.Stringer.
+func (f StringerFunc) String() string {
+	return f()
+}
+
+// GotFormatter is used to better print failure messages. If a matcher
+// implements GotFormatter, it will use the result from Got when printing
+// the failure message.
+type GotFormatter interface {
+	// Got is invoked with the received value. The result is used when
+	// printing the failure message.
+	Got(got interface{}) string
+}
+
+// GotFormatterFunc type is an adapter to allow the use of ordinary
+// functions as a GotFormatter. If f is a function with the appropriate
+// signature, GotFormatterFunc(f) is a GotFormatter that calls f.
+type GotFormatterFunc func(got interface{}) string
+
+// Got implements GotFormatter.
+func (f GotFormatterFunc) Got(got interface{}) string {
+	return f(got)
+}
+
+// GotFormatterAdapter attaches a GotFormatter to a Matcher.
+func GotFormatterAdapter(s GotFormatter, m Matcher) Matcher {
+	return struct {
+		GotFormatter
+		Matcher
+	}{
+		GotFormatter: s,
+		Matcher:      m,
+	}
+}
+
+type anyMatcher struct{}
+
+func (anyMatcher) Matches(interface{}) bool {
+	return true
+}
+
+func (anyMatcher) String() string {
+	return "is anything"
+}
+
+type eqMatcher struct {
+	x interface{}
+}
+
+func (e eqMatcher) Matches(x interface{}) bool {
+	// In case, some value is nil
+	if e.x == nil || x == nil {
+		return reflect.DeepEqual(e.x, x)
+	}
+
+	// Check if types assignable and convert them to common type
+	x1Val := reflect.ValueOf(e.x)
+	x2Val := reflect.ValueOf(x)
+
+	if x1Val.Type().AssignableTo(x2Val.Type()) {
+		x1ValConverted := x1Val.Convert(x2Val.Type())
+		return reflect.DeepEqual(x1ValConverted.Interface(), x2Val.Interface())
+	}
+
+	return false
+}
+
+func (e eqMatcher) String() string {
+	return fmt.Sprintf("is equal to %v", e.x)
+}
+
+type nilMatcher struct{}
+
+func (nilMatcher) Matches(x interface{}) bool {
+	if x == nil {
+		return true
+	}
+
+	v := reflect.ValueOf(x)
+	switch v.Kind() {
+	case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map,
+		reflect.Ptr, reflect.Slice:
+		return v.IsNil()
+	}
+
+	return false
+}
+
+func (nilMatcher) String() string {
+	return "is nil"
+}
+
+type notMatcher struct {
+	m Matcher
+}
+
+func (n notMatcher) Matches(x interface{}) bool {
+	return !n.m.Matches(x)
+}
+
+func (n notMatcher) String() string {
+	// TODO: Improve this if we add a NotString method to the Matcher interface.
+	return "not(" + n.m.String() + ")"
+}
+
+type assignableToTypeOfMatcher struct {
+	targetType reflect.Type
+}
+
+func (m assignableToTypeOfMatcher) Matches(x interface{}) bool {
+	return reflect.TypeOf(x).AssignableTo(m.targetType)
+}
+
+func (m assignableToTypeOfMatcher) String() string {
+	return "is assignable to " + m.targetType.Name()
+}
+
+type allMatcher struct {
+	matchers []Matcher
+}
+
+func (am allMatcher) Matches(x interface{}) bool {
+	for _, m := range am.matchers {
+		if !m.Matches(x) {
+			return false
+		}
+	}
+	return true
+}
+
+func (am allMatcher) String() string {
+	ss := make([]string, 0, len(am.matchers))
+	for _, matcher := range am.matchers {
+		ss = append(ss, matcher.String())
+	}
+	return strings.Join(ss, "; ")
+}
+
+type lenMatcher struct {
+	i int
+}
+
+func (m lenMatcher) Matches(x interface{}) bool {
+	v := reflect.ValueOf(x)
+	switch v.Kind() {
+	case reflect.Array, reflect.Chan, reflect.Map, reflect.Slice, reflect.String:
+		return v.Len() == m.i
+	default:
+		return false
+	}
+}
+
+func (m lenMatcher) String() string {
+	return fmt.Sprintf("has length %d", m.i)
+}
+
+// Constructors
+
+// All returns a composite Matcher that returns true if and only all of the
+// matchers return true.
+func All(ms ...Matcher) Matcher { return allMatcher{ms} }
+
+// Any returns a matcher that always matches.
+func Any() Matcher { return anyMatcher{} }
+
+// Eq returns a matcher that matches on equality.
+//
+// Example usage:
+//   Eq(5).Matches(5) // returns true
+//   Eq(5).Matches(4) // returns false
+func Eq(x interface{}) Matcher { return eqMatcher{x} }
+
+// Len returns a matcher that matches on length. This matcher returns false if
+// is compared to a type that is not an array, chan, map, slice, or string.
+func Len(i int) Matcher {
+	return lenMatcher{i}
+}
+
+// Nil returns a matcher that matches if the received value is nil.
+//
+// Example usage:
+//   var x *bytes.Buffer
+//   Nil().Matches(x) // returns true
+//   x = &bytes.Buffer{}
+//   Nil().Matches(x) // returns false
+func Nil() Matcher { return nilMatcher{} }
+
+// Not reverses the results of its given child matcher.
+//
+// Example usage:
+//   Not(Eq(5)).Matches(4) // returns true
+//   Not(Eq(5)).Matches(5) // returns false
+func Not(x interface{}) Matcher {
+	if m, ok := x.(Matcher); ok {
+		return notMatcher{m}
+	}
+	return notMatcher{Eq(x)}
+}
+
+// AssignableToTypeOf is a Matcher that matches if the parameter to the mock
+// function is assignable to the type of the parameter to this function.
+//
+// Example usage:
+//   var s fmt.Stringer = &bytes.Buffer{}
+//   AssignableToTypeOf(s).Matches(time.Second) // returns true
+//   AssignableToTypeOf(s).Matches(99) // returns false
+//
+//   var ctx = reflect.TypeOf((*context.Context)(nil)).Elem()
+//   AssignableToTypeOf(ctx).Matches(context.Background()) // returns true
+func AssignableToTypeOf(x interface{}) Matcher {
+	if xt, ok := x.(reflect.Type); ok {
+		return assignableToTypeOfMatcher{xt}
+	}
+	return assignableToTypeOfMatcher{reflect.TypeOf(x)}
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/request_handler.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/request_handler.go
index 5a333c7..020e799 100644
--- a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/request_handler.go
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/request_handler.go
@@ -835,3 +835,147 @@
 	logger.Debugw(ctx, "invoke rhp.adapter.Single_get_value_request ", log.Fields{"singleGetvalueReq": singleGetvalueReq})
 	return rhp.adapter.Single_get_value_request(ctx, singleGetvalueReq)
 }
+
+func (rhp *RequestHandlerProxy) getDeviceDownloadImageRequest(ctx context.Context, args []*ic.Argument) (*voltha.DeviceImageDownloadRequest, error) {
+	logger.Debugw(ctx, "getDeviceDownloadImageRequest", log.Fields{"args": args})
+	if len(args) < 1 {
+		logger.Warn(ctx, "invalid-number-of-args", log.Fields{"args": args})
+		return nil, errors.New("invalid-number-of-args")
+	}
+
+	deviceDownloadImageReq := ic.DeviceImageDownloadRequest{}
+
+	for _, arg := range args {
+		switch arg.Key {
+		case "deviceImageDownloadReq":
+			if err := ptypes.UnmarshalAny(arg.Value, &deviceDownloadImageReq); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return nil, err
+			}
+		default:
+			return nil, errors.New("invalid argument")
+		}
+	}
+	return &deviceDownloadImageReq, nil
+}
+
+func (rhp *RequestHandlerProxy) getDeviceImageRequest(ctx context.Context, args []*ic.Argument) (*voltha.DeviceImageRequest, error) {
+	logger.Debugw(ctx, "getDeviceImageRequest", log.Fields{"args": args})
+	if len(args) < 1 {
+		logger.Warn(ctx, "invalid-number-of-args", log.Fields{"args": args})
+		return nil, errors.New("invalid-number-of-args")
+	}
+
+	deviceImageReq := ic.DeviceImageRequest{}
+
+	for _, arg := range args {
+		switch arg.Key {
+		case "deviceImageReq":
+			if err := ptypes.UnmarshalAny(arg.Value, &deviceImageReq); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return nil, err
+			}
+		default:
+			return nil, errors.New("invalid argument")
+		}
+	}
+	return &deviceImageReq, nil
+}
+
+func (rhp *RequestHandlerProxy) getDeviceID(ctx context.Context, args []*ic.Argument) (string, error) {
+	logger.Debugw(ctx, "getDeviceID", log.Fields{"args": args})
+
+	deviceId := &ic.StrType{}
+
+	for _, arg := range args {
+		switch arg.Key {
+		case "deviceId":
+			if err := ptypes.UnmarshalAny(arg.Value, deviceId); err != nil {
+				logger.Warnw(ctx, "cannot-unmarshal-device", log.Fields{"error": err})
+				return "", err
+			}
+		default:
+			return "", errors.New("invalid argument")
+		}
+	}
+	return deviceId.Val, nil
+}
+
+func (rhp *RequestHandlerProxy) Download_onu_image(ctx context.Context, args []*ic.Argument) (*voltha.DeviceImageResponse, error) {
+	imageDownloadReq, err := rhp.getDeviceDownloadImageRequest(ctx, args)
+	if err != nil {
+		return nil, err
+	}
+
+	imageDownloadRsp, err := rhp.adapter.Download_onu_image(ctx, imageDownloadReq)
+	if err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return imageDownloadRsp, nil
+}
+
+func (rhp *RequestHandlerProxy) Get_onu_image_status(ctx context.Context, args []*ic.Argument) (*voltha.DeviceImageResponse, error) {
+	imageStatusReq, err := rhp.getDeviceImageRequest(ctx, args)
+	if err != nil {
+		return nil, err
+	}
+
+	imageStatus, err := rhp.adapter.Get_onu_image_status(ctx, imageStatusReq)
+	if err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return imageStatus, nil
+}
+
+func (rhp *RequestHandlerProxy) Abort_onu_image_upgrade(ctx context.Context, args []*ic.Argument) (*voltha.DeviceImageResponse, error) {
+	imageAbortReq, err := rhp.getDeviceImageRequest(ctx, args)
+	if err != nil {
+		return nil, err
+	}
+
+	imageAbortRsp, err := rhp.adapter.Abort_onu_image_upgrade(ctx, imageAbortReq)
+	if err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return imageAbortRsp, nil
+}
+
+func (rhp *RequestHandlerProxy) Activate_onu_image(ctx context.Context, args []*ic.Argument) (*voltha.DeviceImageResponse, error) {
+	imageActivateReq, err := rhp.getDeviceImageRequest(ctx, args)
+	if err != nil {
+		return nil, err
+	}
+
+	imageActivateRsp, err := rhp.adapter.Activate_onu_image(ctx, imageActivateReq)
+	if err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return imageActivateRsp, nil
+}
+
+func (rhp *RequestHandlerProxy) Commit_onu_image(ctx context.Context, args []*ic.Argument) (*voltha.DeviceImageResponse, error) {
+	imageCommitReq, err := rhp.getDeviceImageRequest(ctx, args)
+	if err != nil {
+		return nil, err
+	}
+
+	imageCommitRsp, err := rhp.adapter.Commit_onu_image(ctx, imageCommitReq)
+	if err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+
+	return imageCommitRsp, nil
+}
+
+func (rhp *RequestHandlerProxy) Get_onu_images(ctx context.Context, args []*ic.Argument) (*voltha.OnuImages, error) {
+	deviceID, err := rhp.getDeviceID(ctx, args)
+	if err != nil {
+		return nil, err
+	}
+
+	onuImages, err := rhp.adapter.Get_onu_images(ctx, deviceID)
+	if err != nil {
+		return nil, status.Errorf(codes.NotFound, "%s", err.Error())
+	}
+	return onuImages, nil
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/iAdapter.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/iAdapter.go
index 92a33e7..fbf2b5d 100644
--- a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/iAdapter.go
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/iAdapter.go
@@ -57,4 +57,10 @@
 	Start_omci_test(ctx context.Context, device *voltha.Device, request *voltha.OmciTestRequest) (*voltha.TestResponse, error)
 	Get_ext_value(ctx context.Context, deviceId string, device *voltha.Device, valueflag voltha.ValueType_Type) (*voltha.ReturnValues, error)
 	Single_get_value_request(ctx context.Context, request extension.SingleGetValueRequest) (*extension.SingleGetValueResponse, error)
+	Download_onu_image(ctx context.Context, request *voltha.DeviceImageDownloadRequest) (*voltha.DeviceImageResponse, error)
+	Get_onu_image_status(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error)
+	Abort_onu_image_upgrade(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error)
+	Get_onu_images(ctx context.Context, deviceID string) (*voltha.OnuImages, error)
+	Activate_onu_image(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error)
+	Commit_onu_image(ctx context.Context, in *voltha.DeviceImageRequest) (*voltha.DeviceImageResponse, error)
 }
diff --git a/vendor/github.com/opencord/voltha-protos/v4/go/inter_container/inter_container.pb.go b/vendor/github.com/opencord/voltha-protos/v4/go/inter_container/inter_container.pb.go
index a0957f1..04f2b14 100644
--- a/vendor/github.com/opencord/voltha-protos/v4/go/inter_container/inter_container.pb.go
+++ b/vendor/github.com/opencord/voltha-protos/v4/go/inter_container/inter_container.pb.go
@@ -162,6 +162,15 @@
 // Membership from public import voltha_protos/voltha.proto
 type Membership = voltha.Membership
 
+// DeviceImageDownloadRequest from public import voltha_protos/voltha.proto
+type DeviceImageDownloadRequest = voltha.DeviceImageDownloadRequest
+
+// DeviceImageRequest from public import voltha_protos/voltha.proto
+type DeviceImageRequest = voltha.DeviceImageRequest
+
+// DeviceImageResponse from public import voltha_protos/voltha.proto
+type DeviceImageResponse = voltha.DeviceImageResponse
+
 // FlowMetadata from public import voltha_protos/voltha.proto
 type FlowMetadata = voltha.FlowMetadata
 
diff --git a/vendor/github.com/opencord/voltha-protos/v4/go/voltha/device.pb.go b/vendor/github.com/opencord/voltha-protos/v4/go/voltha/device.pb.go
index 2499fd1..957af8f 100644
--- a/vendor/github.com/opencord/voltha-protos/v4/go/voltha/device.pb.go
+++ b/vendor/github.com/opencord/voltha-protos/v4/go/voltha/device.pb.go
@@ -91,7 +91,7 @@
 }
 
 func (ImageDownload_ImageDownloadState) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_200940f73d155856, []int{7, 0}
+	return fileDescriptor_200940f73d155856, []int{6, 0}
 }
 
 type ImageDownload_ImageDownloadFailureReason int32
@@ -128,7 +128,7 @@
 }
 
 func (ImageDownload_ImageDownloadFailureReason) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_200940f73d155856, []int{7, 1}
+	return fileDescriptor_200940f73d155856, []int{6, 1}
 }
 
 type ImageDownload_ImageActivateState int32
@@ -165,7 +165,151 @@
 }
 
 func (ImageDownload_ImageActivateState) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_200940f73d155856, []int{7, 2}
+	return fileDescriptor_200940f73d155856, []int{6, 2}
+}
+
+type ImageState_ImageDownloadState int32
+
+const (
+	ImageState_DOWNLOAD_UNKNOWN     ImageState_ImageDownloadState = 0
+	ImageState_DOWNLOAD_SUCCEEDED   ImageState_ImageDownloadState = 1
+	ImageState_DOWNLOAD_REQUESTED   ImageState_ImageDownloadState = 2
+	ImageState_DOWNLOAD_STARTED     ImageState_ImageDownloadState = 3
+	ImageState_DOWNLOAD_FAILED      ImageState_ImageDownloadState = 4
+	ImageState_DOWNLOAD_UNSUPPORTED ImageState_ImageDownloadState = 5
+	ImageState_DOWNLOAD_CANCELLING  ImageState_ImageDownloadState = 6
+	ImageState_DOWNLOAD_CANCELLED   ImageState_ImageDownloadState = 7
+)
+
+var ImageState_ImageDownloadState_name = map[int32]string{
+	0: "DOWNLOAD_UNKNOWN",
+	1: "DOWNLOAD_SUCCEEDED",
+	2: "DOWNLOAD_REQUESTED",
+	3: "DOWNLOAD_STARTED",
+	4: "DOWNLOAD_FAILED",
+	5: "DOWNLOAD_UNSUPPORTED",
+	6: "DOWNLOAD_CANCELLING",
+	7: "DOWNLOAD_CANCELLED",
+}
+
+var ImageState_ImageDownloadState_value = map[string]int32{
+	"DOWNLOAD_UNKNOWN":     0,
+	"DOWNLOAD_SUCCEEDED":   1,
+	"DOWNLOAD_REQUESTED":   2,
+	"DOWNLOAD_STARTED":     3,
+	"DOWNLOAD_FAILED":      4,
+	"DOWNLOAD_UNSUPPORTED": 5,
+	"DOWNLOAD_CANCELLING":  6,
+	"DOWNLOAD_CANCELLED":   7,
+}
+
+func (x ImageState_ImageDownloadState) String() string {
+	return proto.EnumName(ImageState_ImageDownloadState_name, int32(x))
+}
+
+func (ImageState_ImageDownloadState) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor_200940f73d155856, []int{12, 0}
+}
+
+type ImageState_ImageFailureReason int32
+
+const (
+	ImageState_NO_ERROR               ImageState_ImageFailureReason = 0
+	ImageState_INVALID_URL            ImageState_ImageFailureReason = 1
+	ImageState_DEVICE_BUSY            ImageState_ImageFailureReason = 2
+	ImageState_INSUFFICIENT_SPACE     ImageState_ImageFailureReason = 3
+	ImageState_UNKNOWN_ERROR          ImageState_ImageFailureReason = 4
+	ImageState_CANCELLED_ON_REQUEST   ImageState_ImageFailureReason = 5
+	ImageState_CANCELLED_ON_ONU_STATE ImageState_ImageFailureReason = 6
+	ImageState_VENDOR_DEVICE_MISMATCH ImageState_ImageFailureReason = 7
+	ImageState_OMCI_TRANSFER_ERROR    ImageState_ImageFailureReason = 8
+	ImageState_IMAGE_REFUSED_BY_ONU   ImageState_ImageFailureReason = 9
+)
+
+var ImageState_ImageFailureReason_name = map[int32]string{
+	0: "NO_ERROR",
+	1: "INVALID_URL",
+	2: "DEVICE_BUSY",
+	3: "INSUFFICIENT_SPACE",
+	4: "UNKNOWN_ERROR",
+	5: "CANCELLED_ON_REQUEST",
+	6: "CANCELLED_ON_ONU_STATE",
+	7: "VENDOR_DEVICE_MISMATCH",
+	8: "OMCI_TRANSFER_ERROR",
+	9: "IMAGE_REFUSED_BY_ONU",
+}
+
+var ImageState_ImageFailureReason_value = map[string]int32{
+	"NO_ERROR":               0,
+	"INVALID_URL":            1,
+	"DEVICE_BUSY":            2,
+	"INSUFFICIENT_SPACE":     3,
+	"UNKNOWN_ERROR":          4,
+	"CANCELLED_ON_REQUEST":   5,
+	"CANCELLED_ON_ONU_STATE": 6,
+	"VENDOR_DEVICE_MISMATCH": 7,
+	"OMCI_TRANSFER_ERROR":    8,
+	"IMAGE_REFUSED_BY_ONU":   9,
+}
+
+func (x ImageState_ImageFailureReason) String() string {
+	return proto.EnumName(ImageState_ImageFailureReason_name, int32(x))
+}
+
+func (ImageState_ImageFailureReason) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor_200940f73d155856, []int{12, 1}
+}
+
+type ImageState_ImageActivationState int32
+
+const (
+	ImageState_IMAGE_UNKNOWN             ImageState_ImageActivationState = 0
+	ImageState_IMAGE_INACTIVE            ImageState_ImageActivationState = 1
+	ImageState_IMAGE_ACTIVATING          ImageState_ImageActivationState = 2
+	ImageState_IMAGE_ACTIVE              ImageState_ImageActivationState = 3
+	ImageState_IMAGE_COMMITTING          ImageState_ImageActivationState = 4
+	ImageState_IMAGE_COMMITTED           ImageState_ImageActivationState = 5
+	ImageState_IMAGE_ACTIVATION_ABORTING ImageState_ImageActivationState = 6
+	ImageState_IMAGE_ACTIVATION_ABORTED  ImageState_ImageActivationState = 7
+	ImageState_IMAGE_COMMIT_ABORTING     ImageState_ImageActivationState = 8
+	ImageState_IMAGE_COMMIT_ABORTED      ImageState_ImageActivationState = 9
+	ImageState_IMAGE_DOWNLOADING         ImageState_ImageActivationState = 10
+)
+
+var ImageState_ImageActivationState_name = map[int32]string{
+	0:  "IMAGE_UNKNOWN",
+	1:  "IMAGE_INACTIVE",
+	2:  "IMAGE_ACTIVATING",
+	3:  "IMAGE_ACTIVE",
+	4:  "IMAGE_COMMITTING",
+	5:  "IMAGE_COMMITTED",
+	6:  "IMAGE_ACTIVATION_ABORTING",
+	7:  "IMAGE_ACTIVATION_ABORTED",
+	8:  "IMAGE_COMMIT_ABORTING",
+	9:  "IMAGE_COMMIT_ABORTED",
+	10: "IMAGE_DOWNLOADING",
+}
+
+var ImageState_ImageActivationState_value = map[string]int32{
+	"IMAGE_UNKNOWN":             0,
+	"IMAGE_INACTIVE":            1,
+	"IMAGE_ACTIVATING":          2,
+	"IMAGE_ACTIVE":              3,
+	"IMAGE_COMMITTING":          4,
+	"IMAGE_COMMITTED":           5,
+	"IMAGE_ACTIVATION_ABORTING": 6,
+	"IMAGE_ACTIVATION_ABORTED":  7,
+	"IMAGE_COMMIT_ABORTING":     8,
+	"IMAGE_COMMIT_ABORTED":      9,
+	"IMAGE_DOWNLOADING":         10,
+}
+
+func (x ImageState_ImageActivationState) String() string {
+	return proto.EnumName(ImageState_ImageActivationState_name, int32(x))
+}
+
+func (ImageState_ImageActivationState) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor_200940f73d155856, []int{12, 2}
 }
 
 type Port_PortType int32
@@ -205,7 +349,7 @@
 }
 
 func (Port_PortType) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_200940f73d155856, []int{9, 0}
+	return fileDescriptor_200940f73d155856, []int{13, 0}
 }
 
 type SimulateAlarmRequest_OperationType int32
@@ -230,7 +374,7 @@
 }
 
 func (SimulateAlarmRequest_OperationType) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_200940f73d155856, []int{13, 0}
+	return fileDescriptor_200940f73d155856, []int{17, 0}
 }
 
 // A Device Type
@@ -581,26 +725,47 @@
 	return 0
 }
 
-// Describes instance of software image on the device
+//Object representing an image
 type Image struct {
-	Name            string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
-	Version         string `protobuf:"bytes,2,opt,name=version,proto3" json:"version,omitempty"`
-	Hash            string `protobuf:"bytes,3,opt,name=hash,proto3" json:"hash,omitempty"`
+	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	// Version, this is the sole identifier of the image. it's the vendor specified OMCI version
+	// must be known at the time of initiating a download, activate, commit image on an onu.
+	Version string `protobuf:"bytes,2,opt,name=version,proto3" json:"version,omitempty"`
+	// hash of the image to be verified against
+	// Deprecated in voltha 2.8, will be removed
+	Hash uint32 `protobuf:"varint,3,opt,name=hash,proto3" json:"hash,omitempty"`
+	// Deprecated in voltha 2.8, will be removed
 	InstallDatetime string `protobuf:"bytes,4,opt,name=install_datetime,json=installDatetime,proto3" json:"install_datetime,omitempty"`
 	// The active software image is one that is currently loaded and executing
 	// in the ONU or circuit pack. Under normal operation, one software image
 	// is always active while the other is inactive. Under no circumstances are
 	// both software images allowed to be active at the same time
+	// Deprecated in voltha 2.8, will be removed
 	IsActive bool `protobuf:"varint,5,opt,name=is_active,json=isActive,proto3" json:"is_active,omitempty"`
 	// The committed software image is loaded and executed upon reboot of the
 	// ONU and/or circuit pack. During normal operation, one software image is
 	// always committed, while the other is uncommitted.
+	// Deprecated in voltha 2.8, will be removed
 	IsCommitted bool `protobuf:"varint,6,opt,name=is_committed,json=isCommitted,proto3" json:"is_committed,omitempty"`
 	// A software image is valid if it has been verified to be an executable
 	// code image. The verification mechanism is not subject to standardization;
 	// however, it should include at least a data integrity (e.g., CRC) check of
 	// the entire code image.
-	IsValid              bool     `protobuf:"varint,7,opt,name=is_valid,json=isValid,proto3" json:"is_valid,omitempty"`
+	// Deprecated in voltha 2.8, will be removed
+	IsValid bool `protobuf:"varint,7,opt,name=is_valid,json=isValid,proto3" json:"is_valid,omitempty"`
+	// URL where the image is available
+	// URL MUST be fully qualified,
+	// including filename, username and password
+	Url string `protobuf:"bytes,8,opt,name=url,proto3" json:"url,omitempty"`
+	// Represents the vendor/device mfr
+	// Needs to match the vendor of the device the image will be installed on
+	// optional, if not matched no check will be performed
+	Vendor string `protobuf:"bytes,9,opt,name=vendor,proto3" json:"vendor,omitempty"`
+	// Represents the ONU Image CRC value.
+	// Default to value 0 if not specified.
+	// If different then 0 it's used to verify the image retrieved from outside before sending it to the ONU.
+	// Calculation of this needs to be done according to ITU-T I.363.5 as per OMCI spec (section A.2.27)
+	Crc32                uint32   `protobuf:"varint,10,opt,name=crc32,proto3" json:"crc32,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_unrecognized     []byte   `json:"-"`
 	XXX_sizecache        int32    `json:"-"`
@@ -645,11 +810,11 @@
 	return ""
 }
 
-func (m *Image) GetHash() string {
+func (m *Image) GetHash() uint32 {
 	if m != nil {
 		return m.Hash
 	}
-	return ""
+	return 0
 }
 
 func (m *Image) GetInstallDatetime() string {
@@ -680,47 +845,29 @@
 	return false
 }
 
-// List of software on the device
-type Images struct {
-	Image                []*Image `protobuf:"bytes,1,rep,name=image,proto3" json:"image,omitempty"`
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
-}
-
-func (m *Images) Reset()         { *m = Images{} }
-func (m *Images) String() string { return proto.CompactTextString(m) }
-func (*Images) ProtoMessage()    {}
-func (*Images) Descriptor() ([]byte, []int) {
-	return fileDescriptor_200940f73d155856, []int{6}
-}
-
-func (m *Images) XXX_Unmarshal(b []byte) error {
-	return xxx_messageInfo_Images.Unmarshal(m, b)
-}
-func (m *Images) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_Images.Marshal(b, m, deterministic)
-}
-func (m *Images) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_Images.Merge(m, src)
-}
-func (m *Images) XXX_Size() int {
-	return xxx_messageInfo_Images.Size(m)
-}
-func (m *Images) XXX_DiscardUnknown() {
-	xxx_messageInfo_Images.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_Images proto.InternalMessageInfo
-
-func (m *Images) GetImage() []*Image {
+func (m *Image) GetUrl() string {
 	if m != nil {
-		return m.Image
+		return m.Url
 	}
-	return nil
+	return ""
 }
 
-//TODO: ImageDownload is not actively used (05/19/2020).  When this is tackled, can remove extra/unnecessary fields.
+func (m *Image) GetVendor() string {
+	if m != nil {
+		return m.Vendor
+	}
+	return ""
+}
+
+func (m *Image) GetCrc32() uint32 {
+	if m != nil {
+		return m.Crc32
+	}
+	return 0
+}
+
+// Older version of the API please see DeviceImageDownloadRequest
+// Deprecated in voltha 2.8, will be removed
 type ImageDownload struct {
 	// Device Identifier
 	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
@@ -758,7 +905,7 @@
 func (m *ImageDownload) String() string { return proto.CompactTextString(m) }
 func (*ImageDownload) ProtoMessage()    {}
 func (*ImageDownload) Descriptor() ([]byte, []int) {
-	return fileDescriptor_200940f73d155856, []int{7}
+	return fileDescriptor_200940f73d155856, []int{6}
 }
 
 func (m *ImageDownload) XXX_Unmarshal(b []byte) error {
@@ -870,6 +1017,7 @@
 	return 0
 }
 
+// Deprecated in voltha 2.8, will be removed
 type ImageDownloads struct {
 	Items                []*ImageDownload `protobuf:"bytes,2,rep,name=items,proto3" json:"items,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}         `json:"-"`
@@ -881,7 +1029,7 @@
 func (m *ImageDownloads) String() string { return proto.CompactTextString(m) }
 func (*ImageDownloads) ProtoMessage()    {}
 func (*ImageDownloads) Descriptor() ([]byte, []int) {
-	return fileDescriptor_200940f73d155856, []int{8}
+	return fileDescriptor_200940f73d155856, []int{7}
 }
 
 func (m *ImageDownloads) XXX_Unmarshal(b []byte) error {
@@ -909,6 +1057,282 @@
 	return nil
 }
 
+type Images struct {
+	Image                []*Image `protobuf:"bytes,1,rep,name=image,proto3" json:"image,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *Images) Reset()         { *m = Images{} }
+func (m *Images) String() string { return proto.CompactTextString(m) }
+func (*Images) ProtoMessage()    {}
+func (*Images) Descriptor() ([]byte, []int) {
+	return fileDescriptor_200940f73d155856, []int{8}
+}
+
+func (m *Images) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Images.Unmarshal(m, b)
+}
+func (m *Images) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Images.Marshal(b, m, deterministic)
+}
+func (m *Images) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Images.Merge(m, src)
+}
+func (m *Images) XXX_Size() int {
+	return xxx_messageInfo_Images.Size(m)
+}
+func (m *Images) XXX_DiscardUnknown() {
+	xxx_messageInfo_Images.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Images proto.InternalMessageInfo
+
+func (m *Images) GetImage() []*Image {
+	if m != nil {
+		return m.Image
+	}
+	return nil
+}
+
+// OnuImage represents the OMCI information as per OMCI spec
+// the information will be populates exactly as extracted from the device.
+type OnuImage struct {
+	//image version
+	Version     string `protobuf:"bytes,1,opt,name=version,proto3" json:"version,omitempty"`
+	IsCommited  bool   `protobuf:"varint,2,opt,name=isCommited,proto3" json:"isCommited,omitempty"`
+	IsActive    bool   `protobuf:"varint,3,opt,name=isActive,proto3" json:"isActive,omitempty"`
+	IsValid     bool   `protobuf:"varint,4,opt,name=isValid,proto3" json:"isValid,omitempty"`
+	ProductCode string `protobuf:"bytes,5,opt,name=productCode,proto3" json:"productCode,omitempty"`
+	// Hash is computed by the ONU and is optional as per OMCI spec (paragraph 9.1.4)
+	// No assumption should be made on the existence of this attribute at any time.
+	Hash                 string   `protobuf:"bytes,6,opt,name=hash,proto3" json:"hash,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *OnuImage) Reset()         { *m = OnuImage{} }
+func (m *OnuImage) String() string { return proto.CompactTextString(m) }
+func (*OnuImage) ProtoMessage()    {}
+func (*OnuImage) Descriptor() ([]byte, []int) {
+	return fileDescriptor_200940f73d155856, []int{9}
+}
+
+func (m *OnuImage) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_OnuImage.Unmarshal(m, b)
+}
+func (m *OnuImage) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_OnuImage.Marshal(b, m, deterministic)
+}
+func (m *OnuImage) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_OnuImage.Merge(m, src)
+}
+func (m *OnuImage) XXX_Size() int {
+	return xxx_messageInfo_OnuImage.Size(m)
+}
+func (m *OnuImage) XXX_DiscardUnknown() {
+	xxx_messageInfo_OnuImage.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_OnuImage proto.InternalMessageInfo
+
+func (m *OnuImage) GetVersion() string {
+	if m != nil {
+		return m.Version
+	}
+	return ""
+}
+
+func (m *OnuImage) GetIsCommited() bool {
+	if m != nil {
+		return m.IsCommited
+	}
+	return false
+}
+
+func (m *OnuImage) GetIsActive() bool {
+	if m != nil {
+		return m.IsActive
+	}
+	return false
+}
+
+func (m *OnuImage) GetIsValid() bool {
+	if m != nil {
+		return m.IsValid
+	}
+	return false
+}
+
+func (m *OnuImage) GetProductCode() string {
+	if m != nil {
+		return m.ProductCode
+	}
+	return ""
+}
+
+func (m *OnuImage) GetHash() string {
+	if m != nil {
+		return m.Hash
+	}
+	return ""
+}
+
+type OnuImages struct {
+	Items                []*OnuImage `protobuf:"bytes,1,rep,name=items,proto3" json:"items,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}    `json:"-"`
+	XXX_unrecognized     []byte      `json:"-"`
+	XXX_sizecache        int32       `json:"-"`
+}
+
+func (m *OnuImages) Reset()         { *m = OnuImages{} }
+func (m *OnuImages) String() string { return proto.CompactTextString(m) }
+func (*OnuImages) ProtoMessage()    {}
+func (*OnuImages) Descriptor() ([]byte, []int) {
+	return fileDescriptor_200940f73d155856, []int{10}
+}
+
+func (m *OnuImages) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_OnuImages.Unmarshal(m, b)
+}
+func (m *OnuImages) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_OnuImages.Marshal(b, m, deterministic)
+}
+func (m *OnuImages) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_OnuImages.Merge(m, src)
+}
+func (m *OnuImages) XXX_Size() int {
+	return xxx_messageInfo_OnuImages.Size(m)
+}
+func (m *OnuImages) XXX_DiscardUnknown() {
+	xxx_messageInfo_OnuImages.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_OnuImages proto.InternalMessageInfo
+
+func (m *OnuImages) GetItems() []*OnuImage {
+	if m != nil {
+		return m.Items
+	}
+	return nil
+}
+
+type DeviceImageState struct {
+	DeviceId             string      `protobuf:"bytes,1,opt,name=device_id,json=deviceId,proto3" json:"device_id,omitempty"`
+	ImageState           *ImageState `protobuf:"bytes,2,opt,name=imageState,proto3" json:"imageState,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}    `json:"-"`
+	XXX_unrecognized     []byte      `json:"-"`
+	XXX_sizecache        int32       `json:"-"`
+}
+
+func (m *DeviceImageState) Reset()         { *m = DeviceImageState{} }
+func (m *DeviceImageState) String() string { return proto.CompactTextString(m) }
+func (*DeviceImageState) ProtoMessage()    {}
+func (*DeviceImageState) Descriptor() ([]byte, []int) {
+	return fileDescriptor_200940f73d155856, []int{11}
+}
+
+func (m *DeviceImageState) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_DeviceImageState.Unmarshal(m, b)
+}
+func (m *DeviceImageState) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_DeviceImageState.Marshal(b, m, deterministic)
+}
+func (m *DeviceImageState) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_DeviceImageState.Merge(m, src)
+}
+func (m *DeviceImageState) XXX_Size() int {
+	return xxx_messageInfo_DeviceImageState.Size(m)
+}
+func (m *DeviceImageState) XXX_DiscardUnknown() {
+	xxx_messageInfo_DeviceImageState.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_DeviceImageState proto.InternalMessageInfo
+
+func (m *DeviceImageState) GetDeviceId() string {
+	if m != nil {
+		return m.DeviceId
+	}
+	return ""
+}
+
+func (m *DeviceImageState) GetImageState() *ImageState {
+	if m != nil {
+		return m.ImageState
+	}
+	return nil
+}
+
+type ImageState struct {
+	// image version
+	Version string `protobuf:"bytes,1,opt,name=version,proto3" json:"version,omitempty"`
+	// Download state
+	DownloadState ImageState_ImageDownloadState `protobuf:"varint,2,opt,name=download_state,json=downloadState,proto3,enum=voltha.ImageState_ImageDownloadState" json:"download_state,omitempty"`
+	// Image Operation Failure reason (use for both Download and Activate)
+	Reason ImageState_ImageFailureReason `protobuf:"varint,3,opt,name=reason,proto3,enum=voltha.ImageState_ImageFailureReason" json:"reason,omitempty"`
+	// Image activation state
+	ImageState           ImageState_ImageActivationState `protobuf:"varint,4,opt,name=image_state,json=imageState,proto3,enum=voltha.ImageState_ImageActivationState" json:"image_state,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}                        `json:"-"`
+	XXX_unrecognized     []byte                          `json:"-"`
+	XXX_sizecache        int32                           `json:"-"`
+}
+
+func (m *ImageState) Reset()         { *m = ImageState{} }
+func (m *ImageState) String() string { return proto.CompactTextString(m) }
+func (*ImageState) ProtoMessage()    {}
+func (*ImageState) Descriptor() ([]byte, []int) {
+	return fileDescriptor_200940f73d155856, []int{12}
+}
+
+func (m *ImageState) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ImageState.Unmarshal(m, b)
+}
+func (m *ImageState) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ImageState.Marshal(b, m, deterministic)
+}
+func (m *ImageState) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ImageState.Merge(m, src)
+}
+func (m *ImageState) XXX_Size() int {
+	return xxx_messageInfo_ImageState.Size(m)
+}
+func (m *ImageState) XXX_DiscardUnknown() {
+	xxx_messageInfo_ImageState.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ImageState proto.InternalMessageInfo
+
+func (m *ImageState) GetVersion() string {
+	if m != nil {
+		return m.Version
+	}
+	return ""
+}
+
+func (m *ImageState) GetDownloadState() ImageState_ImageDownloadState {
+	if m != nil {
+		return m.DownloadState
+	}
+	return ImageState_DOWNLOAD_UNKNOWN
+}
+
+func (m *ImageState) GetReason() ImageState_ImageFailureReason {
+	if m != nil {
+		return m.Reason
+	}
+	return ImageState_NO_ERROR
+}
+
+func (m *ImageState) GetImageState() ImageState_ImageActivationState {
+	if m != nil {
+		return m.ImageState
+	}
+	return ImageState_IMAGE_UNKNOWN
+}
+
 type Port struct {
 	PortNo     uint32                  `protobuf:"varint,1,opt,name=port_no,json=portNo,proto3" json:"port_no,omitempty"`
 	Label      string                  `protobuf:"bytes,2,opt,name=label,proto3" json:"label,omitempty"`
@@ -936,7 +1360,7 @@
 func (m *Port) String() string { return proto.CompactTextString(m) }
 func (*Port) ProtoMessage()    {}
 func (*Port) Descriptor() ([]byte, []int) {
-	return fileDescriptor_200940f73d155856, []int{9}
+	return fileDescriptor_200940f73d155856, []int{13}
 }
 
 func (m *Port) XXX_Unmarshal(b []byte) error {
@@ -1067,7 +1491,7 @@
 func (m *Port_PeerPort) String() string { return proto.CompactTextString(m) }
 func (*Port_PeerPort) ProtoMessage()    {}
 func (*Port_PeerPort) Descriptor() ([]byte, []int) {
-	return fileDescriptor_200940f73d155856, []int{9, 0}
+	return fileDescriptor_200940f73d155856, []int{13, 0}
 }
 
 func (m *Port_PeerPort) XXX_Unmarshal(b []byte) error {
@@ -1113,7 +1537,7 @@
 func (m *Ports) String() string { return proto.CompactTextString(m) }
 func (*Ports) ProtoMessage()    {}
 func (*Ports) Descriptor() ([]byte, []int) {
-	return fileDescriptor_200940f73d155856, []int{10}
+	return fileDescriptor_200940f73d155856, []int{14}
 }
 
 func (m *Ports) XXX_Unmarshal(b []byte) error {
@@ -1163,7 +1587,7 @@
 	Images       *Images `protobuf:"bytes,9,opt,name=images,proto3" json:"images,omitempty"`
 	SerialNumber string  `protobuf:"bytes,10,opt,name=serial_number,json=serialNumber,proto3" json:"serial_number,omitempty"`
 	VendorId     string  `protobuf:"bytes,24,opt,name=vendor_id,json=vendorId,proto3" json:"vendor_id,omitempty"`
-	// Addapter that takes care of device
+	// Adapter that takes care of device
 	Adapter string `protobuf:"bytes,11,opt,name=adapter,proto3" json:"adapter,omitempty"`
 	// Device contact on vlan (if 0, no vlan)
 	Vlan uint32 `protobuf:"varint,12,opt,name=vlan,proto3" json:"vlan,omitempty"`
@@ -1195,7 +1619,7 @@
 func (m *Device) String() string { return proto.CompactTextString(m) }
 func (*Device) ProtoMessage()    {}
 func (*Device) Descriptor() ([]byte, []int) {
-	return fileDescriptor_200940f73d155856, []int{11}
+	return fileDescriptor_200940f73d155856, []int{15}
 }
 
 func (m *Device) XXX_Unmarshal(b []byte) error {
@@ -1460,7 +1884,7 @@
 func (m *Device_ProxyAddress) String() string { return proto.CompactTextString(m) }
 func (*Device_ProxyAddress) ProtoMessage()    {}
 func (*Device_ProxyAddress) Descriptor() ([]byte, []int) {
-	return fileDescriptor_200940f73d155856, []int{11, 0}
+	return fileDescriptor_200940f73d155856, []int{15, 0}
 }
 
 func (m *Device_ProxyAddress) XXX_Unmarshal(b []byte) error {
@@ -1541,7 +1965,7 @@
 func (m *Devices) String() string { return proto.CompactTextString(m) }
 func (*Devices) ProtoMessage()    {}
 func (*Devices) Descriptor() ([]byte, []int) {
-	return fileDescriptor_200940f73d155856, []int{12}
+	return fileDescriptor_200940f73d155856, []int{16}
 }
 
 func (m *Devices) XXX_Unmarshal(b []byte) error {
@@ -1590,7 +2014,7 @@
 func (m *SimulateAlarmRequest) String() string { return proto.CompactTextString(m) }
 func (*SimulateAlarmRequest) ProtoMessage()    {}
 func (*SimulateAlarmRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_200940f73d155856, []int{13}
+	return fileDescriptor_200940f73d155856, []int{17}
 }
 
 func (m *SimulateAlarmRequest) XXX_Unmarshal(b []byte) error {
@@ -1686,6 +2110,9 @@
 	proto.RegisterEnum("voltha.ImageDownload_ImageDownloadState", ImageDownload_ImageDownloadState_name, ImageDownload_ImageDownloadState_value)
 	proto.RegisterEnum("voltha.ImageDownload_ImageDownloadFailureReason", ImageDownload_ImageDownloadFailureReason_name, ImageDownload_ImageDownloadFailureReason_value)
 	proto.RegisterEnum("voltha.ImageDownload_ImageActivateState", ImageDownload_ImageActivateState_name, ImageDownload_ImageActivateState_value)
+	proto.RegisterEnum("voltha.ImageState_ImageDownloadState", ImageState_ImageDownloadState_name, ImageState_ImageDownloadState_value)
+	proto.RegisterEnum("voltha.ImageState_ImageFailureReason", ImageState_ImageFailureReason_name, ImageState_ImageFailureReason_value)
+	proto.RegisterEnum("voltha.ImageState_ImageActivationState", ImageState_ImageActivationState_name, ImageState_ImageActivationState_value)
 	proto.RegisterEnum("voltha.Port_PortType", Port_PortType_name, Port_PortType_value)
 	proto.RegisterEnum("voltha.SimulateAlarmRequest_OperationType", SimulateAlarmRequest_OperationType_name, SimulateAlarmRequest_OperationType_value)
 	proto.RegisterType((*DeviceType)(nil), "voltha.DeviceType")
@@ -1694,9 +2121,13 @@
 	proto.RegisterType((*PmGroupConfig)(nil), "voltha.PmGroupConfig")
 	proto.RegisterType((*PmConfigs)(nil), "voltha.PmConfigs")
 	proto.RegisterType((*Image)(nil), "voltha.Image")
-	proto.RegisterType((*Images)(nil), "voltha.Images")
 	proto.RegisterType((*ImageDownload)(nil), "voltha.ImageDownload")
 	proto.RegisterType((*ImageDownloads)(nil), "voltha.ImageDownloads")
+	proto.RegisterType((*Images)(nil), "voltha.Images")
+	proto.RegisterType((*OnuImage)(nil), "voltha.OnuImage")
+	proto.RegisterType((*OnuImages)(nil), "voltha.OnuImages")
+	proto.RegisterType((*DeviceImageState)(nil), "voltha.DeviceImageState")
+	proto.RegisterType((*ImageState)(nil), "voltha.ImageState")
 	proto.RegisterType((*Port)(nil), "voltha.Port")
 	proto.RegisterType((*Port_PeerPort)(nil), "voltha.Port.PeerPort")
 	proto.RegisterType((*Ports)(nil), "voltha.Ports")
@@ -1709,152 +2140,174 @@
 func init() { proto.RegisterFile("voltha_protos/device.proto", fileDescriptor_200940f73d155856) }
 
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 }
diff --git a/vendor/github.com/opencord/voltha-protos/v4/go/voltha/voltha.pb.go b/vendor/github.com/opencord/voltha-protos/v4/go/voltha/voltha.pb.go
index e69957a..7e9a2a5 100644
--- a/vendor/github.com/opencord/voltha-protos/v4/go/voltha/voltha.pb.go
+++ b/vendor/github.com/opencord/voltha-protos/v4/go/voltha/voltha.pb.go
@@ -2135,6 +2135,174 @@
 	return ""
 }
 
+type DeviceImageDownloadRequest struct {
+	// Device Id
+	// allows for operations on multiple devices.
+	DeviceId []*common.ID `protobuf:"bytes,1,rep,name=device_id,json=deviceId,proto3" json:"device_id,omitempty"`
+	//The image for the device containing all the information
+	Image *Image `protobuf:"bytes,2,opt,name=image,proto3" json:"image,omitempty"`
+	//Activate the image if the download to the device is successful
+	ActivateOnSuccess bool `protobuf:"varint,3,opt,name=activateOnSuccess,proto3" json:"activateOnSuccess,omitempty"`
+	//Automatically commit the image if the activation on the device is successful
+	CommitOnSuccess      bool     `protobuf:"varint,4,opt,name=commitOnSuccess,proto3" json:"commitOnSuccess,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *DeviceImageDownloadRequest) Reset()         { *m = DeviceImageDownloadRequest{} }
+func (m *DeviceImageDownloadRequest) String() string { return proto.CompactTextString(m) }
+func (*DeviceImageDownloadRequest) ProtoMessage()    {}
+func (*DeviceImageDownloadRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_e084f1a60ce7016c, []int{15}
+}
+
+func (m *DeviceImageDownloadRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_DeviceImageDownloadRequest.Unmarshal(m, b)
+}
+func (m *DeviceImageDownloadRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_DeviceImageDownloadRequest.Marshal(b, m, deterministic)
+}
+func (m *DeviceImageDownloadRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_DeviceImageDownloadRequest.Merge(m, src)
+}
+func (m *DeviceImageDownloadRequest) XXX_Size() int {
+	return xxx_messageInfo_DeviceImageDownloadRequest.Size(m)
+}
+func (m *DeviceImageDownloadRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_DeviceImageDownloadRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_DeviceImageDownloadRequest proto.InternalMessageInfo
+
+func (m *DeviceImageDownloadRequest) GetDeviceId() []*common.ID {
+	if m != nil {
+		return m.DeviceId
+	}
+	return nil
+}
+
+func (m *DeviceImageDownloadRequest) GetImage() *Image {
+	if m != nil {
+		return m.Image
+	}
+	return nil
+}
+
+func (m *DeviceImageDownloadRequest) GetActivateOnSuccess() bool {
+	if m != nil {
+		return m.ActivateOnSuccess
+	}
+	return false
+}
+
+func (m *DeviceImageDownloadRequest) GetCommitOnSuccess() bool {
+	if m != nil {
+		return m.CommitOnSuccess
+	}
+	return false
+}
+
+type DeviceImageRequest struct {
+	//Device Id
+	//allows for operations on multiple adapters.
+	DeviceId []*common.ID `protobuf:"bytes,1,rep,name=device_id,json=deviceId,proto3" json:"device_id,omitempty"`
+	// Image Version, this is the sole identifier of the image. it's the vendor specified OMCI version
+	// must be known at the time of initiating a download, activate, commit image on an onu.
+	Version string `protobuf:"bytes,2,opt,name=version,proto3" json:"version,omitempty"`
+	//Automatically commit the image if the activation on the device is successful
+	CommitOnSuccess      bool     `protobuf:"varint,3,opt,name=commitOnSuccess,proto3" json:"commitOnSuccess,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *DeviceImageRequest) Reset()         { *m = DeviceImageRequest{} }
+func (m *DeviceImageRequest) String() string { return proto.CompactTextString(m) }
+func (*DeviceImageRequest) ProtoMessage()    {}
+func (*DeviceImageRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_e084f1a60ce7016c, []int{16}
+}
+
+func (m *DeviceImageRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_DeviceImageRequest.Unmarshal(m, b)
+}
+func (m *DeviceImageRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_DeviceImageRequest.Marshal(b, m, deterministic)
+}
+func (m *DeviceImageRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_DeviceImageRequest.Merge(m, src)
+}
+func (m *DeviceImageRequest) XXX_Size() int {
+	return xxx_messageInfo_DeviceImageRequest.Size(m)
+}
+func (m *DeviceImageRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_DeviceImageRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_DeviceImageRequest proto.InternalMessageInfo
+
+func (m *DeviceImageRequest) GetDeviceId() []*common.ID {
+	if m != nil {
+		return m.DeviceId
+	}
+	return nil
+}
+
+func (m *DeviceImageRequest) GetVersion() string {
+	if m != nil {
+		return m.Version
+	}
+	return ""
+}
+
+func (m *DeviceImageRequest) GetCommitOnSuccess() bool {
+	if m != nil {
+		return m.CommitOnSuccess
+	}
+	return false
+}
+
+type DeviceImageResponse struct {
+	//Image state for the different devices
+	DeviceImageStates    []*DeviceImageState `protobuf:"bytes,1,rep,name=device_image_states,json=deviceImageStates,proto3" json:"device_image_states,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}            `json:"-"`
+	XXX_unrecognized     []byte              `json:"-"`
+	XXX_sizecache        int32               `json:"-"`
+}
+
+func (m *DeviceImageResponse) Reset()         { *m = DeviceImageResponse{} }
+func (m *DeviceImageResponse) String() string { return proto.CompactTextString(m) }
+func (*DeviceImageResponse) ProtoMessage()    {}
+func (*DeviceImageResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_e084f1a60ce7016c, []int{17}
+}
+
+func (m *DeviceImageResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_DeviceImageResponse.Unmarshal(m, b)
+}
+func (m *DeviceImageResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_DeviceImageResponse.Marshal(b, m, deterministic)
+}
+func (m *DeviceImageResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_DeviceImageResponse.Merge(m, src)
+}
+func (m *DeviceImageResponse) XXX_Size() int {
+	return xxx_messageInfo_DeviceImageResponse.Size(m)
+}
+func (m *DeviceImageResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_DeviceImageResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_DeviceImageResponse proto.InternalMessageInfo
+
+func (m *DeviceImageResponse) GetDeviceImageStates() []*DeviceImageState {
+	if m != nil {
+		return m.DeviceImageStates
+	}
+	return nil
+}
+
 // Additional information required to process flow at device adapters
 type FlowMetadata struct {
 	// Meters associated with flow-update to adapter
@@ -2148,7 +2316,7 @@
 func (m *FlowMetadata) String() string { return proto.CompactTextString(m) }
 func (*FlowMetadata) ProtoMessage()    {}
 func (*FlowMetadata) Descriptor() ([]byte, []int) {
-	return fileDescriptor_e084f1a60ce7016c, []int{15}
+	return fileDescriptor_e084f1a60ce7016c, []int{18}
 }
 
 func (m *FlowMetadata) XXX_Unmarshal(b []byte) error {
@@ -2195,177 +2363,198 @@
 	proto.RegisterType((*SelfTestResponse)(nil), "voltha.SelfTestResponse")
 	proto.RegisterType((*OfAgentSubscriber)(nil), "voltha.OfAgentSubscriber")
 	proto.RegisterType((*Membership)(nil), "voltha.Membership")
+	proto.RegisterType((*DeviceImageDownloadRequest)(nil), "voltha.DeviceImageDownloadRequest")
+	proto.RegisterType((*DeviceImageRequest)(nil), "voltha.DeviceImageRequest")
+	proto.RegisterType((*DeviceImageResponse)(nil), "voltha.DeviceImageResponse")
 	proto.RegisterType((*FlowMetadata)(nil), "voltha.FlowMetadata")
 }
 
 func init() { proto.RegisterFile("voltha_protos/voltha.proto", fileDescriptor_e084f1a60ce7016c) }
 
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+	0x64, 0x27, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -2444,12 +2633,16 @@
 	DownloadImage(ctx context.Context, in *ImageDownload, opts ...grpc.CallOption) (*common.OperationResp, error)
 	// Get image download status on a device
 	// The request retrieves progress on device and updates db record
+	// Deprecated in voltha 2.8, will be removed
 	GetImageDownloadStatus(ctx context.Context, in *ImageDownload, opts ...grpc.CallOption) (*ImageDownload, error)
 	// Get image download db record
+	// Deprecated in voltha 2.8, will be removed
 	GetImageDownload(ctx context.Context, in *ImageDownload, opts ...grpc.CallOption) (*ImageDownload, error)
 	// List image download db records for a given device
+	// Deprecated in voltha 2.8, will be removed
 	ListImageDownloads(ctx context.Context, in *common.ID, opts ...grpc.CallOption) (*ImageDownloads, error)
 	// Cancel an existing image download process on a device
+	// Deprecated in voltha 2.8, will be removed
 	CancelImageDownload(ctx context.Context, in *ImageDownload, opts ...grpc.CallOption) (*common.OperationResp, error)
 	// Activate the specified image at a standby partition
 	// to active partition.
@@ -2458,6 +2651,7 @@
 	// If no reboot, then a reboot is required to make the
 	// activated image running on device
 	// Note that the call is expected to be non-blocking.
+	// Deprecated in voltha 2.8, will be removed
 	ActivateImageUpdate(ctx context.Context, in *ImageDownload, opts ...grpc.CallOption) (*common.OperationResp, error)
 	// Revert the specified image at standby partition
 	// to active partition, and revert to previous image
@@ -2466,7 +2660,36 @@
 	// If no reboot, then a reboot is required to make the
 	// previous image running on device
 	// Note that the call is expected to be non-blocking.
+	// Deprecated in voltha 2.8, will be removed
 	RevertImageUpdate(ctx context.Context, in *ImageDownload, opts ...grpc.CallOption) (*common.OperationResp, error)
+	// Downloads a certain image to the standby partition of the devices
+	// Note that the call is expected to be non-blocking.
+	DownloadImageToDevice(ctx context.Context, in *DeviceImageDownloadRequest, opts ...grpc.CallOption) (*DeviceImageResponse, error)
+	// Get image status on a number of devices devices
+	// Polled from northbound systems to get state of download/activate/commit
+	GetImageStatus(ctx context.Context, in *DeviceImageRequest, opts ...grpc.CallOption) (*DeviceImageResponse, error)
+	// Aborts the upgrade of an image on a device
+	// To be used carefully, stops any further operations for the Image on the given devices
+	// Might also stop if possible existing work, but no guarantees are given,
+	// depends on implementation and procedure status.
+	AbortImageUpgradeToDevice(ctx context.Context, in *DeviceImageRequest, opts ...grpc.CallOption) (*DeviceImageResponse, error)
+	// Get Both Active and Standby image for a given device
+	GetOnuImages(ctx context.Context, in *common.ID, opts ...grpc.CallOption) (*OnuImages, error)
+	// Activate the specified image from a standby partition
+	// to active partition.
+	// Depending on the device implementation, this call
+	// may or may not cause device reboot.
+	// If no reboot, then a reboot is required to make the
+	// activated image running on device
+	// Note that the call is expected to be non-blocking.
+	ActivateImage(ctx context.Context, in *DeviceImageRequest, opts ...grpc.CallOption) (*DeviceImageResponse, error)
+	// Commit the specified image to be default.
+	// Depending on the device implementation, this call
+	// may or may not cause device reboot.
+	// If no reboot, then a reboot is required to make the
+	// activated image running on device upon next reboot
+	// Note that the call is expected to be non-blocking.
+	CommitImage(ctx context.Context, in *DeviceImageRequest, opts ...grpc.CallOption) (*DeviceImageResponse, error)
 	// List ports of a device
 	ListDevicePorts(ctx context.Context, in *common.ID, opts ...grpc.CallOption) (*Ports, error)
 	// List pm config of a device
@@ -2837,6 +3060,60 @@
 	return out, nil
 }
 
+func (c *volthaServiceClient) DownloadImageToDevice(ctx context.Context, in *DeviceImageDownloadRequest, opts ...grpc.CallOption) (*DeviceImageResponse, error) {
+	out := new(DeviceImageResponse)
+	err := c.cc.Invoke(ctx, "/voltha.VolthaService/DownloadImageToDevice", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *volthaServiceClient) GetImageStatus(ctx context.Context, in *DeviceImageRequest, opts ...grpc.CallOption) (*DeviceImageResponse, error) {
+	out := new(DeviceImageResponse)
+	err := c.cc.Invoke(ctx, "/voltha.VolthaService/GetImageStatus", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *volthaServiceClient) AbortImageUpgradeToDevice(ctx context.Context, in *DeviceImageRequest, opts ...grpc.CallOption) (*DeviceImageResponse, error) {
+	out := new(DeviceImageResponse)
+	err := c.cc.Invoke(ctx, "/voltha.VolthaService/AbortImageUpgradeToDevice", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *volthaServiceClient) GetOnuImages(ctx context.Context, in *common.ID, opts ...grpc.CallOption) (*OnuImages, error) {
+	out := new(OnuImages)
+	err := c.cc.Invoke(ctx, "/voltha.VolthaService/GetOnuImages", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *volthaServiceClient) ActivateImage(ctx context.Context, in *DeviceImageRequest, opts ...grpc.CallOption) (*DeviceImageResponse, error) {
+	out := new(DeviceImageResponse)
+	err := c.cc.Invoke(ctx, "/voltha.VolthaService/ActivateImage", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *volthaServiceClient) CommitImage(ctx context.Context, in *DeviceImageRequest, opts ...grpc.CallOption) (*DeviceImageResponse, error) {
+	out := new(DeviceImageResponse)
+	err := c.cc.Invoke(ctx, "/voltha.VolthaService/CommitImage", in, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *volthaServiceClient) ListDevicePorts(ctx context.Context, in *common.ID, opts ...grpc.CallOption) (*Ports, error) {
 	out := new(Ports)
 	err := c.cc.Invoke(ctx, "/voltha.VolthaService/ListDevicePorts", in, out, opts...)
@@ -3226,12 +3503,16 @@
 	DownloadImage(context.Context, *ImageDownload) (*common.OperationResp, error)
 	// Get image download status on a device
 	// The request retrieves progress on device and updates db record
+	// Deprecated in voltha 2.8, will be removed
 	GetImageDownloadStatus(context.Context, *ImageDownload) (*ImageDownload, error)
 	// Get image download db record
+	// Deprecated in voltha 2.8, will be removed
 	GetImageDownload(context.Context, *ImageDownload) (*ImageDownload, error)
 	// List image download db records for a given device
+	// Deprecated in voltha 2.8, will be removed
 	ListImageDownloads(context.Context, *common.ID) (*ImageDownloads, error)
 	// Cancel an existing image download process on a device
+	// Deprecated in voltha 2.8, will be removed
 	CancelImageDownload(context.Context, *ImageDownload) (*common.OperationResp, error)
 	// Activate the specified image at a standby partition
 	// to active partition.
@@ -3240,6 +3521,7 @@
 	// If no reboot, then a reboot is required to make the
 	// activated image running on device
 	// Note that the call is expected to be non-blocking.
+	// Deprecated in voltha 2.8, will be removed
 	ActivateImageUpdate(context.Context, *ImageDownload) (*common.OperationResp, error)
 	// Revert the specified image at standby partition
 	// to active partition, and revert to previous image
@@ -3248,7 +3530,36 @@
 	// If no reboot, then a reboot is required to make the
 	// previous image running on device
 	// Note that the call is expected to be non-blocking.
+	// Deprecated in voltha 2.8, will be removed
 	RevertImageUpdate(context.Context, *ImageDownload) (*common.OperationResp, error)
+	// Downloads a certain image to the standby partition of the devices
+	// Note that the call is expected to be non-blocking.
+	DownloadImageToDevice(context.Context, *DeviceImageDownloadRequest) (*DeviceImageResponse, error)
+	// Get image status on a number of devices devices
+	// Polled from northbound systems to get state of download/activate/commit
+	GetImageStatus(context.Context, *DeviceImageRequest) (*DeviceImageResponse, error)
+	// Aborts the upgrade of an image on a device
+	// To be used carefully, stops any further operations for the Image on the given devices
+	// Might also stop if possible existing work, but no guarantees are given,
+	// depends on implementation and procedure status.
+	AbortImageUpgradeToDevice(context.Context, *DeviceImageRequest) (*DeviceImageResponse, error)
+	// Get Both Active and Standby image for a given device
+	GetOnuImages(context.Context, *common.ID) (*OnuImages, error)
+	// Activate the specified image from a standby partition
+	// to active partition.
+	// Depending on the device implementation, this call
+	// may or may not cause device reboot.
+	// If no reboot, then a reboot is required to make the
+	// activated image running on device
+	// Note that the call is expected to be non-blocking.
+	ActivateImage(context.Context, *DeviceImageRequest) (*DeviceImageResponse, error)
+	// Commit the specified image to be default.
+	// Depending on the device implementation, this call
+	// may or may not cause device reboot.
+	// If no reboot, then a reboot is required to make the
+	// activated image running on device upon next reboot
+	// Note that the call is expected to be non-blocking.
+	CommitImage(context.Context, *DeviceImageRequest) (*DeviceImageResponse, error)
 	// List ports of a device
 	ListDevicePorts(context.Context, *common.ID) (*Ports, error)
 	// List pm config of a device
@@ -3405,6 +3716,24 @@
 func (*UnimplementedVolthaServiceServer) RevertImageUpdate(ctx context.Context, req *ImageDownload) (*common.OperationResp, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method RevertImageUpdate not implemented")
 }
+func (*UnimplementedVolthaServiceServer) DownloadImageToDevice(ctx context.Context, req *DeviceImageDownloadRequest) (*DeviceImageResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method DownloadImageToDevice not implemented")
+}
+func (*UnimplementedVolthaServiceServer) GetImageStatus(ctx context.Context, req *DeviceImageRequest) (*DeviceImageResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetImageStatus not implemented")
+}
+func (*UnimplementedVolthaServiceServer) AbortImageUpgradeToDevice(ctx context.Context, req *DeviceImageRequest) (*DeviceImageResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method AbortImageUpgradeToDevice not implemented")
+}
+func (*UnimplementedVolthaServiceServer) GetOnuImages(ctx context.Context, req *common.ID) (*OnuImages, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method GetOnuImages not implemented")
+}
+func (*UnimplementedVolthaServiceServer) ActivateImage(ctx context.Context, req *DeviceImageRequest) (*DeviceImageResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ActivateImage not implemented")
+}
+func (*UnimplementedVolthaServiceServer) CommitImage(ctx context.Context, req *DeviceImageRequest) (*DeviceImageResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method CommitImage not implemented")
+}
 func (*UnimplementedVolthaServiceServer) ListDevicePorts(ctx context.Context, req *common.ID) (*Ports, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method ListDevicePorts not implemented")
 }
@@ -4124,6 +4453,114 @@
 	return interceptor(ctx, in, info, handler)
 }
 
+func _VolthaService_DownloadImageToDevice_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(DeviceImageDownloadRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(VolthaServiceServer).DownloadImageToDevice(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/voltha.VolthaService/DownloadImageToDevice",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(VolthaServiceServer).DownloadImageToDevice(ctx, req.(*DeviceImageDownloadRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _VolthaService_GetImageStatus_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(DeviceImageRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(VolthaServiceServer).GetImageStatus(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/voltha.VolthaService/GetImageStatus",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(VolthaServiceServer).GetImageStatus(ctx, req.(*DeviceImageRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _VolthaService_AbortImageUpgradeToDevice_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(DeviceImageRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(VolthaServiceServer).AbortImageUpgradeToDevice(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/voltha.VolthaService/AbortImageUpgradeToDevice",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(VolthaServiceServer).AbortImageUpgradeToDevice(ctx, req.(*DeviceImageRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _VolthaService_GetOnuImages_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(common.ID)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(VolthaServiceServer).GetOnuImages(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/voltha.VolthaService/GetOnuImages",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(VolthaServiceServer).GetOnuImages(ctx, req.(*common.ID))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _VolthaService_ActivateImage_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(DeviceImageRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(VolthaServiceServer).ActivateImage(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/voltha.VolthaService/ActivateImage",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(VolthaServiceServer).ActivateImage(ctx, req.(*DeviceImageRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _VolthaService_CommitImage_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(DeviceImageRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(VolthaServiceServer).CommitImage(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: "/voltha.VolthaService/CommitImage",
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(VolthaServiceServer).CommitImage(ctx, req.(*DeviceImageRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _VolthaService_ListDevicePorts_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(common.ID)
 	if err := dec(in); err != nil {
@@ -4787,6 +5224,30 @@
 			Handler:    _VolthaService_RevertImageUpdate_Handler,
 		},
 		{
+			MethodName: "DownloadImageToDevice",
+			Handler:    _VolthaService_DownloadImageToDevice_Handler,
+		},
+		{
+			MethodName: "GetImageStatus",
+			Handler:    _VolthaService_GetImageStatus_Handler,
+		},
+		{
+			MethodName: "AbortImageUpgradeToDevice",
+			Handler:    _VolthaService_AbortImageUpgradeToDevice_Handler,
+		},
+		{
+			MethodName: "GetOnuImages",
+			Handler:    _VolthaService_GetOnuImages_Handler,
+		},
+		{
+			MethodName: "ActivateImage",
+			Handler:    _VolthaService_ActivateImage_Handler,
+		},
+		{
+			MethodName: "CommitImage",
+			Handler:    _VolthaService_CommitImage_Handler,
+		},
+		{
 			MethodName: "ListDevicePorts",
 			Handler:    _VolthaService_ListDevicePorts_Handler,
 		},
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 90a0dd8..22ed9b3 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -35,6 +35,9 @@
 github.com/gogo/protobuf/gogoproto
 github.com/gogo/protobuf/proto
 github.com/gogo/protobuf/protoc-gen-gogo/descriptor
+# github.com/golang/mock v1.5.0
+## explicit
+github.com/golang/mock/gomock
 # github.com/golang/protobuf v1.3.2
 ## explicit
 github.com/golang/protobuf/jsonpb
@@ -87,7 +90,7 @@
 github.com/modern-go/concurrent
 # github.com/modern-go/reflect2 v1.0.1
 github.com/modern-go/reflect2
-# github.com/opencord/voltha-lib-go/v4 v4.2.3
+# github.com/opencord/voltha-lib-go/v4 v4.3.0
 ## explicit
 github.com/opencord/voltha-lib-go/v4/pkg/adapters
 github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif
@@ -105,7 +108,7 @@
 github.com/opencord/voltha-lib-go/v4/pkg/mocks/kafka
 github.com/opencord/voltha-lib-go/v4/pkg/probe
 github.com/opencord/voltha-lib-go/v4/pkg/version
-# github.com/opencord/voltha-protos/v4 v4.1.0
+# github.com/opencord/voltha-protos/v4 v4.1.1
 ## explicit
 github.com/opencord/voltha-protos/v4/go/common
 github.com/opencord/voltha-protos/v4/go/ext/config