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038d2ef875
Adding flow steering support by creating a flow-table per priority (if rules exist in the priority). mlx5_ib uses autogrouping and thus only creates the required destinations. Also includes adding of these flow steering utilities 1. Parsing verbs flow attributes hardware steering specs. 2. Check if flow is multicast - this is required in order to decide to which flow table will we add the steering rule. 3. Set outer headers in flow match criteria to zeros. Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
111 lines
3.3 KiB
C
111 lines
3.3 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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#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_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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