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/*
* Copyright (c) 2015, Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _MLX5_FS_
#define _MLX5_FS_
#include <linux/mlx5/driver.h>
#include <linux/mlx5/mlx5_ifc.h>
#define MLX5_FS_DEFAULT_FLOW_TAG 0x0
enum {
MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO = 1 << 16,
MLX5_FLOW_CONTEXT_ACTION_ENCRYPT = 1 << 17,
MLX5_FLOW_CONTEXT_ACTION_DECRYPT = 1 << 18,
MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_NS = 1 << 19,
};
enum {
MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT = BIT(0),
MLX5_FLOW_TABLE_TUNNEL_EN_DECAP = BIT(1),
MLX5_FLOW_TABLE_TERMINATION = BIT(2),
MLX5_FLOW_TABLE_UNMANAGED = BIT(3),
};
#define LEFTOVERS_RULE_NUM 2
static inline void build_leftovers_ft_param(int *priority,
int *n_ent,
int *n_grp)
{
*priority = 0; /* Priority of leftovers_prio-0 */
*n_ent = LEFTOVERS_RULE_NUM;
*n_grp = LEFTOVERS_RULE_NUM;
}
enum mlx5_flow_namespace_type {
MLX5_FLOW_NAMESPACE_BYPASS,
MLX5_FLOW_NAMESPACE_LAG,
MLX5_FLOW_NAMESPACE_OFFLOADS,
MLX5_FLOW_NAMESPACE_ETHTOOL,
MLX5_FLOW_NAMESPACE_KERNEL,
MLX5_FLOW_NAMESPACE_LEFTOVERS,
MLX5_FLOW_NAMESPACE_ANCHOR,
MLX5_FLOW_NAMESPACE_FDB,
MLX5_FLOW_NAMESPACE_ESW_EGRESS,
MLX5_FLOW_NAMESPACE_ESW_INGRESS,
MLX5_FLOW_NAMESPACE_SNIFFER_RX,
MLX5_FLOW_NAMESPACE_SNIFFER_TX,
MLX5_FLOW_NAMESPACE_EGRESS,
MLX5_FLOW_NAMESPACE_EGRESS_KERNEL,
MLX5_FLOW_NAMESPACE_RDMA_RX,
MLX5_FLOW_NAMESPACE_RDMA_RX_KERNEL,
MLX5_FLOW_NAMESPACE_RDMA_TX,
};
enum {
FDB_BYPASS_PATH,
FDB_TC_OFFLOAD,
FDB_FT_OFFLOAD,
FDB_SLOW_PATH,
FDB_PER_VPORT,
};
struct mlx5_pkt_reformat;
struct mlx5_modify_hdr;
struct mlx5_flow_table;
struct mlx5_flow_group;
struct mlx5_flow_namespace;
struct mlx5_flow_handle;
enum {
FLOW_CONTEXT_HAS_TAG = BIT(0),
};
struct mlx5_flow_context {
u32 flags;
u32 flow_tag;
u32 flow_source;
};
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_context flow_context;
};
enum {
MLX5_FLOW_DEST_VPORT_VHCA_ID = BIT(0),
MLX5_FLOW_DEST_VPORT_REFORMAT_ID = BIT(1),
};
struct mlx5_flow_destination {
enum mlx5_flow_destination_type type;
union {
u32 tir_num;
u32 ft_num;
struct mlx5_flow_table *ft;
u32 counter_id;
struct {
u16 num;
u16 vhca_id;
struct mlx5_pkt_reformat *pkt_reformat;
u8 flags;
} vport;
u32 sampler_id;
};
};
struct mod_hdr_tbl {
struct mutex lock; /* protects hlist */
DECLARE_HASHTABLE(hlist, 8);
};
struct mlx5_flow_namespace *
mlx5_get_fdb_sub_ns(struct mlx5_core_dev *dev, int n);
struct mlx5_flow_namespace *
mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
enum mlx5_flow_namespace_type type);
struct mlx5_flow_namespace *
mlx5_get_flow_vport_acl_namespace(struct mlx5_core_dev *dev,
enum mlx5_flow_namespace_type type,
int vport);
struct mlx5_flow_table_attr {
int prio;
int max_fte;
u32 level;
u32 flags;
struct mlx5_flow_table *next_ft;
struct {
int max_num_groups;
int num_reserved_entries;
} autogroup;
};
struct mlx5_flow_table *
mlx5_create_flow_table(struct mlx5_flow_namespace *ns,
struct mlx5_flow_table_attr *ft_attr);
struct mlx5_flow_table *
mlx5_create_auto_grouped_flow_table(struct mlx5_flow_namespace *ns,
struct mlx5_flow_table_attr *ft_attr);
struct mlx5_flow_table *
mlx5_create_vport_flow_table(struct mlx5_flow_namespace *ns,
int prio,
int num_flow_table_entries,
u32 level, u16 vport);
struct mlx5_flow_table *mlx5_create_lag_demux_flow_table(
struct mlx5_flow_namespace *ns,
int prio, u32 level);
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);
struct mlx5_fs_vlan {
u16 ethtype;
u16 vid;
u8 prio;
};
#define MLX5_FS_VLAN_DEPTH 2
enum {
FLOW_ACT_NO_APPEND = BIT(0),
FLOW_ACT_IGNORE_FLOW_LEVEL = BIT(1),
};
struct mlx5_flow_act {
u32 action;
struct mlx5_modify_hdr *modify_hdr;
struct mlx5_pkt_reformat *pkt_reformat;
union {
u32 ipsec_obj_id;
uintptr_t esp_id;
};
u32 flags;
struct mlx5_fs_vlan vlan[MLX5_FS_VLAN_DEPTH];
struct ib_counters *counters;
};
#define MLX5_DECLARE_FLOW_ACT(name) \
struct mlx5_flow_act name = { .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,\
.flags = 0, }
/* Single destination per rule.
* Group ID is implied by the match criteria.
*/
struct mlx5_flow_handle *
mlx5_add_flow_rules(struct mlx5_flow_table *ft,
const struct mlx5_flow_spec *spec,
struct mlx5_flow_act *flow_act,
struct mlx5_flow_destination *dest,
int num_dest);
void mlx5_del_flow_rules(struct mlx5_flow_handle *fr);
int mlx5_modify_rule_destination(struct mlx5_flow_handle *handler,
struct mlx5_flow_destination *new_dest,
struct mlx5_flow_destination *old_dest);
struct mlx5_fc *mlx5_fc_create(struct mlx5_core_dev *dev, bool aging);
void mlx5_fc_destroy(struct mlx5_core_dev *dev, struct mlx5_fc *counter);
u64 mlx5_fc_query_lastuse(struct mlx5_fc *counter);
void mlx5_fc_query_cached(struct mlx5_fc *counter,
u64 *bytes, u64 *packets, u64 *lastuse);
int mlx5_fc_query(struct mlx5_core_dev *dev, struct mlx5_fc *counter,
u64 *packets, u64 *bytes);
u32 mlx5_fc_id(struct mlx5_fc *counter);
int mlx5_fs_add_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
int mlx5_fs_remove_rx_underlay_qpn(struct mlx5_core_dev *dev, u32 underlay_qpn);
struct mlx5_modify_hdr *mlx5_modify_header_alloc(struct mlx5_core_dev *dev,
u8 ns_type, u8 num_actions,
void *modify_actions);
void mlx5_modify_header_dealloc(struct mlx5_core_dev *dev,
struct mlx5_modify_hdr *modify_hdr);
struct mlx5_pkt_reformat *mlx5_packet_reformat_alloc(struct mlx5_core_dev *dev,
int reformat_type,
size_t size,
void *reformat_data,
enum mlx5_flow_namespace_type ns_type);
void mlx5_packet_reformat_dealloc(struct mlx5_core_dev *dev,
struct mlx5_pkt_reformat *reformat);
#endif