/*-
* Copyright (c) 2013-2017, Mellanox Technologies, Ltd. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MLX5_FS_
#define _MLX5_FS_
#include <linux/list.h>
#include <dev/mlx5/mlx5_ifc.h>
#include <dev/mlx5/device.h>
#include <dev/mlx5/driver.h>
enum {
MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16,
};
/*Flow tag*/
enum {
MLX5_FS_DEFAULT_FLOW_TAG = 0xFFFFFF,
MLX5_FS_ETH_FLOW_TAG = 0xFFFFFE,
MLX5_FS_SNIFFER_FLOW_TAG = 0xFFFFFD,
};
enum {
MLX5_FS_FLOW_TAG_MASK = 0xFFFFFF,
};
#define FS_MAX_TYPES 10
#define FS_MAX_ENTRIES 32000U
enum mlx5_flow_namespace_type {
MLX5_FLOW_NAMESPACE_BYPASS,
MLX5_FLOW_NAMESPACE_KERNEL,
MLX5_FLOW_NAMESPACE_LEFTOVERS,
MLX5_FLOW_NAMESPACE_SNIFFER_RX,
MLX5_FLOW_NAMESPACE_SNIFFER_TX,
MLX5_FLOW_NAMESPACE_FDB,
MLX5_FLOW_NAMESPACE_ESW_EGRESS,
MLX5_FLOW_NAMESPACE_ESW_INGRESS,
};
struct mlx5_flow_table;
struct mlx5_flow_group;
struct mlx5_flow_rule;
struct mlx5_flow_namespace;
struct mlx5_flow_spec {
u8 match_criteria_enable;
u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
};
struct mlx5_flow_destination {
u32 type;
union {
u32 tir_num;
struct mlx5_flow_table *ft;
u32 vport_num;
};
};
#define FT_NAME_STR_SZ 20
#define LEFTOVERS_RULE_NUM 2
static inline void build_leftovers_ft_param(char *name,
unsigned int *priority,
int *n_ent,
int *n_grp)
{
snprintf(name, FT_NAME_STR_SZ, "leftovers");
*priority = 0; /*Priority of leftovers_prio-0*/
*n_ent = LEFTOVERS_RULE_NUM + 1; /*1: star rules*/
*n_grp = LEFTOVERS_RULE_NUM;
}
static inline bool outer_header_zero(u32 *match_criteria)
{
int size = MLX5_ST_SZ_BYTES(fte_match_param);
char *outer_headers_c = MLX5_ADDR_OF(fte_match_param, match_criteria,
outer_headers);
return outer_headers_c[0] == 0 && !memcmp(outer_headers_c,
outer_headers_c + 1,
size - 1);
}
struct mlx5_flow_namespace *
mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
enum mlx5_flow_namespace_type type);
/* The underlying implementation create two more entries for
* chaining flow tables. the user should be aware that if he pass
* max_num_ftes as 2^N it will result in doubled size flow table
*/
struct mlx5_flow_table *
mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
int prio,
const char *name,
int num_flow_table_entries,
int max_num_groups);
struct mlx5_flow_table *
mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
u16 vport,
int prio,
const char *name,
int num_flow_table_entries);
struct mlx5_flow_table *
mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
int prio,
const char *name,
int num_flow_table_entries);
int mlx5_destroy_flow_table(struct mlx5_flow_table *ft);
/* inbox should be set with the following values:
* start_flow_index
* end_flow_index
* match_criteria_enable
* match_criteria
*/
struct mlx5_flow_group *
mlx5_create_flow_group(struct mlx5_flow_table *ft, u32 *in);
void mlx5_destroy_flow_group(struct mlx5_flow_group *fg);
/* Single destination per rule.
* Group ID is implied by the match criteria.
*/
struct mlx5_flow_rule *
mlx5_add_flow_rule(struct mlx5_flow_table *ft,
u8 match_criteria_enable,
u32 *match_criteria,
u32 *match_value,
u32 action,
u32 flow_tag,
struct mlx5_flow_destination *dest);
void mlx5_del_flow_rule(struct mlx5_flow_rule *fr);
/*The following API is for sniffer*/
typedef int (*rule_event_fn)(struct mlx5_flow_rule *rule,
bool ctx_changed,
void *client_data,
void *context);
struct mlx5_flow_handler;
struct flow_client_priv_data;
void mlx5e_sniffer_roce_mode_notify(
struct mlx5_core_dev *mdev,
int action);
int mlx5_set_rule_private_data(struct mlx5_flow_rule *rule, struct
mlx5_flow_handler *handler, void
*client_data);
struct mlx5_flow_handler *mlx5_register_rule_notifier(struct mlx5_core_dev *dev,
enum mlx5_flow_namespace_type ns_type,
rule_event_fn add_cb,
rule_event_fn del_cb,
void *context);
void mlx5_unregister_rule_notifier(struct mlx5_flow_handler *handler);
void mlx5_flow_iterate_existing_rules(struct mlx5_flow_namespace *ns,
rule_event_fn cb,
void *context);
void mlx5_get_match_criteria(u32 *match_criteria,
struct mlx5_flow_rule *rule);
void mlx5_get_match_value(u32 *match_value,
struct mlx5_flow_rule *rule);
u8 mlx5_get_match_criteria_enable(struct mlx5_flow_rule *rule);
struct mlx5_flow_rules_list *get_roce_flow_rules(u8 roce_mode);
void mlx5_del_flow_rules_list(struct mlx5_flow_rules_list *rules_list);
struct mlx5_flow_rules_list {
struct list_head head;
};
struct mlx5_flow_rule_node {
struct list_head list;
u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
u32 match_value[MLX5_ST_SZ_DW(fte_match_param)];
u8 match_criteria_enable;
};
struct mlx5_core_fs_mask {
u8 match_criteria_enable;
u32 match_criteria[MLX5_ST_SZ_DW(fte_match_param)];
};
bool fs_match_exact_val(
struct mlx5_core_fs_mask *mask,
void *val1,
void *val2);
bool fs_match_exact_mask(
u8 match_criteria_enable1,
u8 match_criteria_enable2,
void *mask1,
void *mask2);
/**********end API for sniffer**********/
#endif