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// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
// Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
#include "act.h"
#include "en/tc_priv.h"
static bool
tc_act_can_offload_mirred_nic(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;
struct mlx5e_tc_flow *flow = parse_state->flow;
struct net_device *out_dev = act->dev;
struct mlx5e_priv *priv = flow->priv;
if (act->id != FLOW_ACTION_REDIRECT)
return false;
if (priv->netdev->netdev_ops != out_dev->netdev_ops ||
!mlx5e_same_hw_devs(priv, netdev_priv(out_dev))) {
NL_SET_ERR_MSG_MOD(extack,
"devices are not on same switch HW, can't offload forwarding");
netdev_warn(priv->netdev,
"devices %s %s not on same switch HW, can't offload forwarding\n",
netdev_name(priv->netdev),
out_dev->name);
return false;
}
return true;
}
static int
tc_act_parse_mirred_nic(struct mlx5e_tc_act_parse_state *parse_state,
const struct flow_action_entry *act,
struct mlx5e_priv *priv,
struct mlx5_flow_attr *attr)
{
attr->parse_attr->mirred_ifindex[0] = act->dev->ifindex;
flow_flag_set(parse_state->flow, HAIRPIN);
attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST |
MLX5_FLOW_CONTEXT_ACTION_COUNT;
return 0;
}
struct mlx5e_tc_act mlx5e_tc_act_mirred_nic = {
.can_offload = tc_act_can_offload_mirred_nic,
.parse_action = tc_act_parse_mirred_nic,
};
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