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/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/* Copyright (c) 2018 Mellanox Technologies. */
#ifndef __MLX5E_FLOW_STEER_H__
#define __MLX5E_FLOW_STEER_H__
#include "mod_hdr.h"
enum {
MLX5E_TC_FT_LEVEL = 0,
MLX5E_TC_TTC_FT_LEVEL,
};
struct mlx5e_tc_table {
/* Protects the dynamic assignment of the t parameter
* which is the nic tc root table.
*/
struct mutex t_lock;
struct mlx5_flow_table *t;
struct mlx5_fs_chains *chains;
struct rhashtable ht;
struct mod_hdr_tbl mod_hdr;
struct mutex hairpin_tbl_lock; /* protects hairpin_tbl */
DECLARE_HASHTABLE(hairpin_tbl, 8);
struct notifier_block netdevice_nb;
struct netdev_net_notifier netdevice_nn;
struct mlx5_tc_ct_priv *ct;
struct mapping_ctx *mapping;
};
struct mlx5e_flow_table {
int num_groups;
struct mlx5_flow_table *t;
struct mlx5_flow_group **g;
};
struct mlx5e_l2_rule {
u8 addr[ETH_ALEN + 2];
struct mlx5_flow_handle *rule;
};
#define MLX5E_L2_ADDR_HASH_SIZE BIT(BITS_PER_BYTE)
struct mlx5e_promisc_table {
struct mlx5e_flow_table ft;
struct mlx5_flow_handle *rule;
};
/* Forward declaration and APIs to get private fields of vlan_table */
struct mlx5e_vlan_table;
unsigned long *mlx5e_vlan_get_active_svlans(struct mlx5e_vlan_table *vlan);
struct mlx5_flow_table *mlx5e_vlan_get_flowtable(struct mlx5e_vlan_table *vlan);
struct mlx5e_l2_table {
struct mlx5e_flow_table ft;
struct hlist_head netdev_uc[MLX5E_L2_ADDR_HASH_SIZE];
struct hlist_head netdev_mc[MLX5E_L2_ADDR_HASH_SIZE];
struct mlx5e_l2_rule broadcast;
struct mlx5e_l2_rule allmulti;
struct mlx5_flow_handle *trap_rule;
bool broadcast_enabled;
bool allmulti_enabled;
bool promisc_enabled;
};
enum mlx5_traffic_types {
MLX5_TT_IPV4_TCP,
MLX5_TT_IPV6_TCP,
MLX5_TT_IPV4_UDP,
MLX5_TT_IPV6_UDP,
MLX5_TT_IPV4_IPSEC_AH,
MLX5_TT_IPV6_IPSEC_AH,
MLX5_TT_IPV4_IPSEC_ESP,
MLX5_TT_IPV6_IPSEC_ESP,
MLX5_TT_IPV4,
MLX5_TT_IPV6,
MLX5_TT_ANY,
MLX5_NUM_TT,
};
#define MLX5E_NUM_INDIR_TIRS (MLX5_NUM_TT - 1)
#define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\
MLX5_HASH_FIELD_SEL_DST_IP)
#define MLX5_HASH_IP_L4PORTS (MLX5_HASH_FIELD_SEL_SRC_IP |\
MLX5_HASH_FIELD_SEL_DST_IP |\
MLX5_HASH_FIELD_SEL_L4_SPORT |\
MLX5_HASH_FIELD_SEL_L4_DPORT)
#define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\
MLX5_HASH_FIELD_SEL_DST_IP |\
MLX5_HASH_FIELD_SEL_IPSEC_SPI)
enum mlx5_tunnel_types {
MLX5_TT_IPV4_GRE,
MLX5_TT_IPV6_GRE,
MLX5_TT_IPV4_IPIP,
MLX5_TT_IPV6_IPIP,
MLX5_TT_IPV4_IPV6,
MLX5_TT_IPV6_IPV6,
MLX5_NUM_TUNNEL_TT,
};
bool mlx5e_tunnel_inner_ft_supported(struct mlx5_core_dev *mdev);
struct mlx5e_ttc_rule {
struct mlx5_flow_handle *rule;
struct mlx5_flow_destination default_dest;
};
/* L3/L4 traffic type classifier */
struct mlx5e_ttc_table {
struct mlx5e_flow_table ft;
struct mlx5e_ttc_rule rules[MLX5_NUM_TT];
struct mlx5_flow_handle *tunnel_rules[MLX5_NUM_TUNNEL_TT];
};
/* NIC prio FTS */
enum {
MLX5E_PROMISC_FT_LEVEL,
MLX5E_VLAN_FT_LEVEL,
MLX5E_L2_FT_LEVEL,
MLX5E_TTC_FT_LEVEL,
MLX5E_INNER_TTC_FT_LEVEL,
MLX5E_FS_TT_UDP_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
MLX5E_FS_TT_ANY_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
#ifdef CONFIG_MLX5_EN_TLS
MLX5E_ACCEL_FS_TCP_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
#endif
#ifdef CONFIG_MLX5_EN_ARFS
MLX5E_ARFS_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
#endif
#ifdef CONFIG_MLX5_EN_IPSEC
MLX5E_ACCEL_FS_ESP_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
MLX5E_ACCEL_FS_ESP_FT_ERR_LEVEL,
#endif
};
#define MLX5_TTC_NUM_GROUPS 3
#define MLX5_TTC_GROUP1_SIZE (BIT(3) + MLX5_NUM_TUNNEL_TT)
#define MLX5_TTC_GROUP2_SIZE BIT(1)
#define MLX5_TTC_GROUP3_SIZE BIT(0)
#define MLX5_TTC_TABLE_SIZE (MLX5_TTC_GROUP1_SIZE +\
MLX5_TTC_GROUP2_SIZE +\
MLX5_TTC_GROUP3_SIZE)
#define MLX5_INNER_TTC_NUM_GROUPS 3
#define MLX5_INNER_TTC_GROUP1_SIZE BIT(3)
#define MLX5_INNER_TTC_GROUP2_SIZE BIT(1)
#define MLX5_INNER_TTC_GROUP3_SIZE BIT(0)
#define MLX5_INNER_TTC_TABLE_SIZE (MLX5_INNER_TTC_GROUP1_SIZE +\
MLX5_INNER_TTC_GROUP2_SIZE +\
MLX5_INNER_TTC_GROUP3_SIZE)
struct mlx5e_priv;
#ifdef CONFIG_MLX5_EN_RXNFC
struct mlx5e_ethtool_table {
struct mlx5_flow_table *ft;
int num_rules;
};
#define ETHTOOL_NUM_L3_L4_FTS 7
#define ETHTOOL_NUM_L2_FTS 4
struct mlx5e_ethtool_steering {
struct mlx5e_ethtool_table l3_l4_ft[ETHTOOL_NUM_L3_L4_FTS];
struct mlx5e_ethtool_table l2_ft[ETHTOOL_NUM_L2_FTS];
struct list_head rules;
int tot_num_rules;
};
void mlx5e_ethtool_init_steering(struct mlx5e_priv *priv);
void mlx5e_ethtool_cleanup_steering(struct mlx5e_priv *priv);
int mlx5e_ethtool_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd);
int mlx5e_ethtool_get_rxnfc(struct net_device *dev,
struct ethtool_rxnfc *info, u32 *rule_locs);
#else
static inline void mlx5e_ethtool_init_steering(struct mlx5e_priv *priv) { }
static inline void mlx5e_ethtool_cleanup_steering(struct mlx5e_priv *priv) { }
static inline int mlx5e_ethtool_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
{ return -EOPNOTSUPP; }
static inline int mlx5e_ethtool_get_rxnfc(struct net_device *dev,
struct ethtool_rxnfc *info, u32 *rule_locs)
{ return -EOPNOTSUPP; }
#endif /* CONFIG_MLX5_EN_RXNFC */
#ifdef CONFIG_MLX5_EN_ARFS
struct mlx5e_arfs_tables;
int mlx5e_arfs_create_tables(struct mlx5e_priv *priv);
void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv);
int mlx5e_arfs_enable(struct mlx5e_priv *priv);
int mlx5e_arfs_disable(struct mlx5e_priv *priv);
int mlx5e_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
u16 rxq_index, u32 flow_id);
#else
static inline int mlx5e_arfs_create_tables(struct mlx5e_priv *priv) { return 0; }
static inline void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv) {}
static inline int mlx5e_arfs_enable(struct mlx5e_priv *priv) { return -EOPNOTSUPP; }
static inline int mlx5e_arfs_disable(struct mlx5e_priv *priv) { return -EOPNOTSUPP; }
#endif
#ifdef CONFIG_MLX5_EN_TLS
struct mlx5e_accel_fs_tcp;
#endif
struct mlx5e_fs_udp;
struct mlx5e_fs_any;
struct mlx5e_ptp_fs;
struct mlx5e_flow_steering {
struct mlx5_flow_namespace *ns;
struct mlx5_flow_namespace *egress_ns;
#ifdef CONFIG_MLX5_EN_RXNFC
struct mlx5e_ethtool_steering ethtool;
#endif
struct mlx5e_tc_table tc;
struct mlx5e_promisc_table promisc;
struct mlx5e_vlan_table *vlan;
struct mlx5e_l2_table l2;
struct mlx5e_ttc_table ttc;
struct mlx5e_ttc_table inner_ttc;
#ifdef CONFIG_MLX5_EN_ARFS
struct mlx5e_arfs_tables *arfs;
#endif
#ifdef CONFIG_MLX5_EN_TLS
struct mlx5e_accel_fs_tcp *accel_tcp;
#endif
struct mlx5e_fs_udp *udp;
struct mlx5e_fs_any *any;
struct mlx5e_ptp_fs *ptp_fs;
};
struct ttc_params {
struct mlx5_flow_table_attr ft_attr;
u32 any_tt_tirn;
u32 indir_tirn[MLX5E_NUM_INDIR_TIRS];
struct mlx5e_ttc_table *inner_ttc;
};
void mlx5e_set_ttc_basic_params(struct mlx5e_priv *priv, struct ttc_params *ttc_params);
void mlx5e_set_ttc_ft_params(struct ttc_params *ttc_params);
int mlx5e_create_ttc_table(struct mlx5e_priv *priv, struct ttc_params *params,
struct mlx5e_ttc_table *ttc);
void mlx5e_destroy_ttc_table(struct mlx5e_priv *priv,
struct mlx5e_ttc_table *ttc);
void mlx5e_destroy_flow_table(struct mlx5e_flow_table *ft);
int mlx5e_ttc_fwd_dest(struct mlx5e_priv *priv, enum mlx5_traffic_types type,
struct mlx5_flow_destination *new_dest);
struct mlx5_flow_destination
mlx5e_ttc_get_default_dest(struct mlx5e_priv *priv,
enum mlx5_traffic_types type);
int mlx5e_ttc_fwd_default_dest(struct mlx5e_priv *priv,
enum mlx5_traffic_types type);
void mlx5e_enable_cvlan_filter(struct mlx5e_priv *priv);
void mlx5e_disable_cvlan_filter(struct mlx5e_priv *priv);
int mlx5e_create_flow_steering(struct mlx5e_priv *priv);
void mlx5e_destroy_flow_steering(struct mlx5e_priv *priv);
u8 mlx5e_get_proto_by_tunnel_type(enum mlx5_tunnel_types tt);
int mlx5e_add_vlan_trap(struct mlx5e_priv *priv, int trap_id, int tir_num);
void mlx5e_remove_vlan_trap(struct mlx5e_priv *priv);
int mlx5e_add_mac_trap(struct mlx5e_priv *priv, int trap_id, int tir_num);
void mlx5e_remove_mac_trap(struct mlx5e_priv *priv);
#endif /* __MLX5E_FLOW_STEER_H__ */
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