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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b3638e1a76
Add support to create flow rule that forward packets to the first flow table in the next priority (next priority could be the first priority in the next namespace or the next priority in the same namespace). This feature could be used for DONT_TRAP rules or rules that only want to mark the packet with flow tag. In order to do it optimally, each flow table has list of all rules that point to this flow table, when a flow table is destroyed/created, we update the list head correspondingly. This kind of rule is created when destination is NULL and action is MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO. Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Reviewed-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
117 lines
3.4 KiB
C
117 lines
3.4 KiB
C
/*
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* Copyright (c) 2015, Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _MLX5_FS_
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#define _MLX5_FS_
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#include <linux/mlx5/driver.h>
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#include <linux/mlx5/mlx5_ifc.h>
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#define MLX5_FS_DEFAULT_FLOW_TAG 0x0
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enum {
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MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16,
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};
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#define LEFTOVERS_RULE_NUM 2
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static inline void build_leftovers_ft_param(int *priority,
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int *n_ent,
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int *n_grp)
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{
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*priority = 0; /* Priority of leftovers_prio-0 */
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*n_ent = LEFTOVERS_RULE_NUM;
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*n_grp = LEFTOVERS_RULE_NUM;
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}
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enum mlx5_flow_namespace_type {
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MLX5_FLOW_NAMESPACE_BYPASS,
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MLX5_FLOW_NAMESPACE_KERNEL,
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MLX5_FLOW_NAMESPACE_LEFTOVERS,
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MLX5_FLOW_NAMESPACE_ANCHOR,
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MLX5_FLOW_NAMESPACE_FDB,
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};
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struct mlx5_flow_table;
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struct mlx5_flow_group;
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struct mlx5_flow_rule;
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struct mlx5_flow_namespace;
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struct mlx5_flow_destination {
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enum mlx5_flow_destination_type type;
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union {
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u32 tir_num;
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struct mlx5_flow_table *ft;
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u32 vport_num;
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};
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};
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struct mlx5_flow_namespace *
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mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
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enum mlx5_flow_namespace_type type);
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struct mlx5_flow_table *
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mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
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int prio,
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int num_flow_table_entries,
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int max_num_groups);
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struct mlx5_flow_table *
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mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
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int prio,
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int num_flow_table_entries);
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int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
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/* inbox should be set with the following values:
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* start_flow_index
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* end_flow_index
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* match_criteria_enable
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* match_criteria
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*/
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struct mlx5_flow_group *
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mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
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void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
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/* Single destination per rule.
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* Group ID is implied by the match criteria.
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*/
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struct mlx5_flow_rule *
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mlx5_add_flow_rule(struct mlx5_flow_table *ft,
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u8 match_criteria_enable,
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u32 *match_criteria,
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u32 *match_value,
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u32 action,
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u32 flow_tag,
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struct mlx5_flow_destination *dest);
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void mlx5_del_flow_rule(struct mlx5_flow_rule *fr);
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#endif
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