1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB 2 // Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved. 3 4 #include <net/psample.h> 5 #include "act.h" 6 #include "en/tc_priv.h" 7 #include "en/tc/act/sample.h" 8 9 static int 10 tc_act_parse_sample(struct mlx5e_tc_act_parse_state *parse_state, 11 const struct flow_action_entry *act, 12 struct mlx5e_priv *priv, 13 struct mlx5_flow_attr *attr) 14 { 15 struct mlx5e_sample_attr *sample_attr = &attr->sample_attr; 16 17 sample_attr->rate = act->sample.rate; 18 sample_attr->group_num = act->sample.psample_group->group_num; 19 20 if (act->sample.truncate) 21 sample_attr->trunc_size = act->sample.trunc_size; 22 23 attr->flags |= MLX5_ATTR_FLAG_SAMPLE; 24 flow_flag_set(parse_state->flow, SAMPLE); 25 26 return 0; 27 } 28 29 bool 30 mlx5e_tc_act_sample_is_multi_table(struct mlx5_core_dev *mdev, 31 struct mlx5_flow_attr *attr) 32 { 33 if (MLX5_CAP_GEN(mdev, reg_c_preserve) || 34 attr->action & MLX5_FLOW_CONTEXT_ACTION_DECAP) 35 return true; 36 37 return false; 38 } 39 40 static bool 41 tc_act_is_multi_table_act_sample(struct mlx5e_priv *priv, 42 const struct flow_action_entry *act, 43 struct mlx5_flow_attr *attr) 44 { 45 return mlx5e_tc_act_sample_is_multi_table(priv->mdev, attr); 46 } 47 48 struct mlx5e_tc_act mlx5e_tc_act_sample = { 49 .parse_action = tc_act_parse_sample, 50 .is_multi_table_act = tc_act_is_multi_table_act_sample, 51 }; 52