// Copyright (c) 2018 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.

syntax = "proto3";

option go_package = "github.com/opencord/voltha-protos/v4/go/tech_profile";
option java_package = "org.opencord.voltha.tech_profile";

package tech_profile;
import "google/api/annotations.proto";

enum Direction {
    UPSTREAM = 0;
    DOWNSTREAM = 1;
    BIDIRECTIONAL = 2;
}

enum SchedulingPolicy {
    WRR = 0;
    StrictPriority = 1;
    Hybrid = 2;
}

enum AdditionalBW {
    AdditionalBW_None = 0;
    AdditionalBW_NA = 1;
    AdditionalBW_BestEffort = 2;
    AdditionalBW_Auto = 3;
}

enum DiscardPolicy {
    TailDrop = 0;
    WTailDrop = 1;
    Red = 2;
    WRed = 3;
}

enum InferredAdditionBWIndication {
    InferredAdditionBWIndication_None = 0;
    InferredAdditionBWIndication_Assured = 1;
    InferredAdditionBWIndication_BestEffort = 2;
}

message SchedulerConfig {
    Direction direction = 1;
    AdditionalBW additional_bw = 2; // Valid on for “direction == Upstream”.
    fixed32 priority = 3;
    fixed32 weight = 4;
    SchedulingPolicy sched_policy = 5;
}

message TrafficShapingInfo {
    fixed32 cir = 1;
    fixed32 cbs = 2;
    fixed32 pir = 3;
    fixed32 pbs = 4;
    fixed32 gir = 5; // only if “direction == Upstream ”
    InferredAdditionBWIndication add_bw_ind = 6; // only if “direction == Upstream”
}

message TrafficScheduler {
    Direction direction = 1;
    fixed32 alloc_id = 2; // valid only if “direction == Upstream ”
    SchedulerConfig scheduler = 3;
    TrafficShapingInfo traffic_shaping_info = 4;
    fixed32 tech_profile_id = 5;
}

message TrafficSchedulers {
    fixed32 intf_id = 1;
    fixed32 onu_id = 2;
    fixed32 uni_id = 4;
    fixed32 port_no = 5;
    repeated TrafficScheduler traffic_scheds = 3;
}

message TailDropDiscardConfig {
    fixed32 queue_size = 1;
}

message RedDiscardConfig {
    fixed32 min_threshold = 1;
    fixed32 max_threshold = 2;
    fixed32 max_probability = 3;
}

message WRedDiscardConfig {
    RedDiscardConfig green = 1;
    RedDiscardConfig yellow = 2;
    RedDiscardConfig red = 3;
}

message DiscardConfig {
    DiscardPolicy discard_policy = 1;
    oneof discard_config {
        TailDropDiscardConfig tail_drop_discard_config = 2;
        RedDiscardConfig red_discard_config = 3;
        WRedDiscardConfig wred_discard_config = 4;
    }
}

message TrafficQueue {
    Direction direction = 1;
    fixed32 gemport_id = 2;
    string pbit_map = 3;
    bool aes_encryption = 4;
    SchedulingPolicy sched_policy = 5; // This can be SP or WRR
    fixed32 priority = 6;
    fixed32 weight = 7;
    DiscardPolicy discard_policy = 8;
    DiscardConfig discard_config = 9;
}

message TrafficQueues {
    fixed32 intf_id = 1;
    fixed32 onu_id = 2;
    fixed32 uni_id = 4;
    fixed32 port_no = 5;
    repeated TrafficQueue traffic_queues = 6;
    fixed32 tech_profile_id = 7;
}