bfruntime_ext.h

/* Copyright 2021 Intel Corporation
 
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.
*/
 
#ifndef DPDK_CONTROL_PLANE_BFRUNTIME_EXT_H_
#define DPDK_CONTROL_PLANE_BFRUNTIME_EXT_H_
 
#include "backends/dpdk/constants.h"
#include "backends/dpdk/options.h"
#include "backends/dpdk/p4/config/p4info.pb.h"
#include "control-plane/bfruntime.h"
 
namespace P4 {
 
namespace BFRT {
 
class BFRuntimeSchemaGenerator : public BFRuntimeGenerator {
 public:
    BFRuntimeSchemaGenerator(const p4configv1::P4Info &p4info, bool isTDI,
                             DPDK::DpdkOptions &options)
        : BFRuntimeGenerator(p4info), isTDI(isTDI), options(options) {}
 
    const Util::JsonObject *genSchema() const override;
 
 private:
    bool isTDI;
    DPDK::DpdkOptions &options;
 
    enum BFRuntimeDataFieldIds : P4Id {
        BF_RT_DATA_START = TD_DATA_END,
 
        BF_RT_DATA_ACTION_MEMBER_ID,
        BF_RT_DATA_SELECTOR_GROUP_ID,
        BF_RT_DATA_ACTION_MEMBER_STATUS,
        BF_RT_DATA_MAX_GROUP_SIZE,
        BF_RT_DATA_HASH_VALUE,
    };
    struct ActionSelector;
 
    void addDPDKExterns(Util::JsonArray *tablesJson, Util::JsonArray *learnFiltersJson) const;
    void addActionSelectorCommon(Util::JsonArray *tablesJson,
                                 const ActionSelector &actionProf) const;
    void addActionSelectorGetMemberCommon(Util::JsonArray *tablesJson,
                                          const ActionSelector &actionProf) const;
    void addConstTableAttr(Util::JsonArray *attrJson) const override;
    bool addMatchTypePriority(std::optional<cstring> &matchType) const override;
    void addActionProfs(Util::JsonArray *tablesJson) const override;
    bool addActionProfIds(const p4configv1::Table &table,
                          Util::JsonObject *tableJson) const override;
    void addMatchActionData(const p4configv1::Table &table, Util::JsonObject *tableJson,
                            Util::JsonArray *dataJson, P4Id maxActionParamId) const;
 
    std::optional<bool> actProfHasSelector(P4Id actProfId) const override;
 
    static std::optional<ActionProf> fromDPDKActionProfile(
        const p4configv1::P4Info &p4info, const p4configv1::ExternInstance &externInstance) {
        const auto &pre = externInstance.preamble();
        p4configv1::ActionProfile actionProfile;
        if (!externInstance.info().UnpackTo(&actionProfile)) {
            ::P4::error(ErrorType::ERR_NOT_FOUND,
                        "Extern instance %1% does not pack an ActionProfile object", pre.name());
            return std::nullopt;
        }
        auto tableIds = collectTableIds(p4info, actionProfile.table_ids().begin(),
                                        actionProfile.table_ids().end());
        return ActionProf{pre.name(), pre.id(), actionProfile.size(), tableIds,
                          transformAnnotations(pre)};
    };
};
 
}  // namespace BFRT
 
}  // namespace P4
 
#endif  // DPDK_CONTROL_PLANE_BFRUNTIME_EXT_H_