blob: a0209f25e9cbcdf37b2208896c3126fd6fcb105a [file] [log] [blame]
/*
* Copyright 2022-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 vpagent
import (
"context"
"io"
"voltha-go-controller/log"
"github.com/golang/protobuf/ptypes/empty"
"google.golang.org/grpc"
)
func (vpa *VPAgent) receivePacketsIn(ctx context.Context) {
logger.Debug(ctx, "receive-packets-in-started")
// If we exit, assume disconnected
defer func() {
vpa.events <- vpaEventVolthaDisconnected
logger.Debug(ctx, "receive-packets-in-finished")
}()
if vpa.volthaClient == nil {
logger.Error(ctx, "no-voltha-connection")
return
}
opt := grpc.EmptyCallOption{}
streamCtx, streamDone := context.WithCancel(context.Background())
defer streamDone()
stream, err := vpa.volthaClient.Get().ReceivePacketsIn(streamCtx, &empty.Empty{}, opt)
if err != nil {
logger.Errorw(ctx, "Unable to establish Receive PacketIn Stream",
log.Fields{"error": err})
return
}
top:
for {
select {
case <-ctx.Done():
logger.Errorw(ctx, "Context Done", log.Fields{"Context": ctx})
break top
default:
pkt, err := stream.Recv()
if err == io.EOF {
logger.Infow(ctx, "EOF for receivePacketsIn stream, reconnecting", log.Fields{"err": err})
stream, err = vpa.volthaClient.Get().ReceivePacketsIn(streamCtx, &empty.Empty{}, opt)
if err != nil {
logger.Errorw(ctx, "Unable to establish Receive PacketIn Stream",
log.Fields{"error": err})
return
}
continue
}
if isConnCanceled(err) {
logger.Errorw(ctx, "error receiving packet",
log.Fields{"error": err})
break top
} else if err != nil {
logger.Infow(ctx, "Ignoring unhandled error", log.Fields{"err": err})
continue
}
vpa.packetInChannel <- pkt
}
}
}
func (vpa *VPAgent) handlePacketsIn(ctx context.Context) {
logger.Debug(ctx, "handle-packets-in-started")
top:
for {
select {
case <-ctx.Done():
logger.Errorw(ctx, "Context Done", log.Fields{"Context": ctx})
break top
case packet := <-vpa.packetInChannel:
if vpc := vpa.getVPClient(packet.Id); vpc != nil {
vpc.PacketIn(ctx, packet)
}
}
}
logger.Debug(ctx, "handle-packets-in-finished")
}