diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_rep.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_rep.h | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h new file mode 100644 index 000000000..b4e691760 --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rep.h @@ -0,0 +1,275 @@ +/* + * Copyright (c) 2017, 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 __MLX5E_REP_H__ +#define __MLX5E_REP_H__ + +#include <net/ip_tunnels.h> +#include <linux/rhashtable.h> +#include <linux/mutex.h> +#include "eswitch.h" +#include "en.h" +#include "lib/port_tun.h" + +#ifdef CONFIG_MLX5_ESWITCH +extern const struct mlx5e_rx_handlers mlx5e_rx_handlers_rep; + +struct mlx5e_neigh_update_table { + struct rhashtable neigh_ht; + /* Save the neigh hash entries in a list in addition to the hash table + * (neigh_ht). In order to iterate easily over the neigh entries. + * Used for stats query. + */ + struct list_head neigh_list; + /* protect lookup/remove operations */ + struct mutex encap_lock; + struct notifier_block netevent_nb; + struct delayed_work neigh_stats_work; + unsigned long min_interval; /* jiffies */ +}; + +struct mlx5_tc_ct_priv; +struct mlx5_tc_int_port_priv; +struct mlx5e_rep_bond; +struct mlx5e_tc_tun_encap; +struct mlx5e_post_act; +struct mlx5e_flow_meters; + +struct mlx5_rep_uplink_priv { + /* indirect block callbacks are invoked on bind/unbind events + * on registered higher level devices (e.g. tunnel devices) + * + * tc_indr_block_cb_priv_list is used to lookup indirect callback + * private data + * + */ + struct list_head tc_indr_block_priv_list; + + struct mlx5_tun_entropy tun_entropy; + + /* protects unready_flows */ + struct mutex unready_flows_lock; + struct list_head unready_flows; + struct work_struct reoffload_flows_work; + + /* maps tun_info to a unique id*/ + struct mapping_ctx *tunnel_mapping; + /* maps tun_enc_opts to a unique id*/ + struct mapping_ctx *tunnel_enc_opts_mapping; + + struct mlx5e_post_act *post_act; + struct mlx5_tc_ct_priv *ct_priv; + struct mlx5e_tc_psample *tc_psample; + + /* support eswitch vports bonding */ + struct mlx5e_rep_bond *bond; + + /* tc tunneling encapsulation private data */ + struct mlx5e_tc_tun_encap *encap; + + /* OVS internal port support */ + struct mlx5e_tc_int_port_priv *int_port_priv; + + struct mlx5e_flow_meters *flow_meters; +}; + +struct mlx5e_rep_priv { + struct mlx5_eswitch_rep *rep; + struct mlx5e_neigh_update_table neigh_update; + struct net_device *netdev; + struct mlx5_flow_table *root_ft; + struct mlx5_flow_handle *vport_rx_rule; + struct list_head vport_sqs_list; + struct mlx5_rep_uplink_priv uplink_priv; /* valid for uplink rep */ + struct rtnl_link_stats64 prev_vf_vport_stats; + struct mlx5_flow_handle *send_to_vport_meta_rule; + struct rhashtable tc_ht; +}; + +static inline +struct mlx5e_rep_priv *mlx5e_rep_to_rep_priv(struct mlx5_eswitch_rep *rep) +{ + return rep->rep_data[REP_ETH].priv; +} + +struct mlx5e_neigh { + union { + __be32 v4; + struct in6_addr v6; + } dst_ip; + int family; +}; + +struct mlx5e_neigh_hash_entry { + struct rhash_head rhash_node; + struct mlx5e_neigh m_neigh; + struct mlx5e_priv *priv; + struct net_device *neigh_dev; + + /* Save the neigh hash entry in a list on the representor in + * addition to the hash table. In order to iterate easily over the + * neighbour entries. Used for stats query. + */ + struct list_head neigh_list; + + /* protects encap list */ + spinlock_t encap_list_lock; + /* encap list sharing the same neigh */ + struct list_head encap_list; + + /* neigh hash entry can be deleted only when the refcount is zero. + * refcount is needed to avoid neigh hash entry removal by TC, while + * it's used by the neigh notification call. + */ + refcount_t refcnt; + + /* Save the last reported time offloaded traffic pass over one of the + * neigh hash entry flows. Use it to periodically update the neigh + * 'used' value and avoid neigh deleting by the kernel. + */ + unsigned long reported_lastuse; + + struct rcu_head rcu; +}; + +enum { + /* set when the encap entry is successfully offloaded into HW */ + MLX5_ENCAP_ENTRY_VALID = BIT(0), + MLX5_REFORMAT_DECAP = BIT(1), + MLX5_ENCAP_ENTRY_NO_ROUTE = BIT(2), +}; + +struct mlx5e_decap_key { + struct ethhdr key; +}; + +struct mlx5e_decap_entry { + struct mlx5e_decap_key key; + struct list_head flows; + struct hlist_node hlist; + refcount_t refcnt; + struct completion res_ready; + int compl_result; + struct mlx5_pkt_reformat *pkt_reformat; + struct rcu_head rcu; +}; + +struct mlx5e_mpls_info { + u32 label; + u8 tc; + u8 bos; + u8 ttl; +}; + +struct mlx5e_encap_entry { + /* attached neigh hash entry */ + struct mlx5e_neigh_hash_entry *nhe; + /* neigh hash entry list of encaps sharing the same neigh */ + struct list_head encap_list; + /* a node of the eswitch encap hash table which keeping all the encap + * entries + */ + struct hlist_node encap_hlist; + struct list_head flows; + struct list_head route_list; + struct mlx5_pkt_reformat *pkt_reformat; + const struct ip_tunnel_info *tun_info; + struct mlx5e_mpls_info mpls_info; + unsigned char h_dest[ETH_ALEN]; /* destination eth addr */ + + struct net_device *out_dev; + int route_dev_ifindex; + struct mlx5e_tc_tunnel *tunnel; + int reformat_type; + u8 flags; + char *encap_header; + int encap_size; + refcount_t refcnt; + struct completion res_ready; + int compl_result; + struct rcu_head rcu; +}; + +struct mlx5e_rep_sq { + struct mlx5_flow_handle *send_to_vport_rule; + struct mlx5_flow_handle *send_to_vport_rule_peer; + u32 sqn; + struct list_head list; +}; + +int mlx5e_rep_init(void); +void mlx5e_rep_cleanup(void); +int mlx5e_rep_bond_init(struct mlx5e_rep_priv *rpriv); +void mlx5e_rep_bond_cleanup(struct mlx5e_rep_priv *rpriv); +int mlx5e_rep_bond_enslave(struct mlx5_eswitch *esw, struct net_device *netdev, + struct net_device *lag_dev); +void mlx5e_rep_bond_unslave(struct mlx5_eswitch *esw, + const struct net_device *netdev, + const struct net_device *lag_dev); +int mlx5e_rep_bond_update(struct mlx5e_priv *priv, bool cleanup); + +bool mlx5e_rep_has_offload_stats(const struct net_device *dev, int attr_id); +int mlx5e_rep_get_offload_stats(int attr_id, const struct net_device *dev, + void *sp); + +bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv); +void mlx5e_rep_activate_channels(struct mlx5e_priv *priv); +void mlx5e_rep_deactivate_channels(struct mlx5e_priv *priv); + +void mlx5e_rep_queue_neigh_stats_work(struct mlx5e_priv *priv); + +bool mlx5e_eswitch_vf_rep(const struct net_device *netdev); +bool mlx5e_eswitch_uplink_rep(const struct net_device *netdev); +static inline bool mlx5e_eswitch_rep(const struct net_device *netdev) +{ + return mlx5e_eswitch_vf_rep(netdev) || + mlx5e_eswitch_uplink_rep(netdev); +} + +#else /* CONFIG_MLX5_ESWITCH */ +static inline bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv) { return false; } +static inline void mlx5e_rep_activate_channels(struct mlx5e_priv *priv) {} +static inline void mlx5e_rep_deactivate_channels(struct mlx5e_priv *priv) {} +static inline int mlx5e_rep_init(void) { return 0; }; +static inline void mlx5e_rep_cleanup(void) {}; +static inline bool mlx5e_rep_has_offload_stats(const struct net_device *dev, + int attr_id) { return false; } +static inline int mlx5e_rep_get_offload_stats(int attr_id, + const struct net_device *dev, + void *sp) { return -EOPNOTSUPP; } +#endif + +static inline bool mlx5e_is_vport_rep(struct mlx5e_priv *priv) +{ + return (MLX5_ESWITCH_MANAGER(priv->mdev) && priv->ppriv); +} +#endif /* __MLX5E_REP_H__ */ |