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// 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"
static bool
tc_act_can_offload_sample(struct mlx5e_tc_act_parse_state *parse_state,
const struct flow_action_entry *act,
int act_index)
{
struct netlink_ext_ack *extack = parse_state->extack;
if (flow_flag_test(parse_state->flow, CT)) {
NL_SET_ERR_MSG_MOD(extack,
"Sample action with connection tracking is not supported");
return false;
}
return true;
}
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;
sample_attr = kzalloc(sizeof(*attr->sample_attr), GFP_KERNEL);
if (!sample_attr)
return -ENOMEM;
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->sample_attr = sample_attr;
flow_flag_set(parse_state->flow, SAMPLE);
return 0;
}
struct mlx5e_tc_act mlx5e_tc_act_sample = {
.can_offload = tc_act_can_offload_sample,
.parse_action = tc_act_parse_sample,
};
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