// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
// Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved.

#include <net/psample.h>
#include "act.h"
#include "en/tc_priv.h"
#include "en/tc/act/sample.h"

static int
tc_act_parse_sample(struct mlx5e_tc_act_parse_state *parse_state,
                    const struct flow_action_entry *act,
                    struct mlx5e_priv *priv,
                    struct mlx5_flow_attr *attr)
{
        struct mlx5e_sample_attr *sample_attr = &attr->sample_attr;

        sample_attr->rate = act->sample.rate;
        sample_attr->group_num = act->sample.psample_group->group_num;

        if (act->sample.truncate)
                sample_attr->trunc_size = act->sample.trunc_size;

        attr->flags |= MLX5_ATTR_FLAG_SAMPLE;
        flow_flag_set(parse_state->flow, SAMPLE);

        return 0;
}

bool
mlx5e_tc_act_sample_is_multi_table(struct mlx5_core_dev *mdev,
                                   struct mlx5_flow_attr *attr)
{
        if (MLX5_CAP_GEN(mdev, reg_c_preserve) ||
            attr->action & MLX5_FLOW_CONTEXT_ACTION_DECAP)
                return true;

        return false;
}

static bool
tc_act_is_multi_table_act_sample(struct mlx5e_priv *priv,
                                 const struct flow_action_entry *act,
                                 struct mlx5_flow_attr *attr)
{
        return mlx5e_tc_act_sample_is_multi_table(priv->mdev, attr);
}

struct mlx5e_tc_act mlx5e_tc_act_sample = {
        .parse_action = tc_act_parse_sample,
        .is_multi_table_act = tc_act_is_multi_table_act_sample,
};