spectrum_router.h

  1/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
  2/* Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved */
  3
  4#ifndef _MLXSW_ROUTER_H_
  5#define _MLXSW_ROUTER_H_
  6
  7#include "spectrum.h"
  8#include "reg.h"
  9
 10struct mlxsw_sp_router_nve_decap {
 11	u32 ul_tb_id;
 12	u32 tunnel_index;
 13	enum mlxsw_sp_l3proto ul_proto;
 14	union mlxsw_sp_l3addr ul_sip;
 15	u8 valid:1;
 16};
 17
 18/* gen_pool_alloc() returns 0 when allocation fails, so use an offset */
 19#define MLXSW_SP_ROUTER_GENALLOC_OFFSET 0x100
 20
 21struct mlxsw_sp_router {
 22	struct mlxsw_sp *mlxsw_sp;
 23	struct rhashtable crif_ht;
 24	struct gen_pool *rifs_table;
 25	struct mlxsw_sp_rif **rifs;
 26	struct idr rif_mac_profiles_idr;
 27	atomic_t rif_mac_profiles_count;
 28	atomic_t rifs_count;
 29	u8 max_rif_mac_profile;
 30	struct mlxsw_sp_vr *vrs;
 31	struct rhashtable neigh_ht;
 32	struct rhashtable nexthop_group_ht;
 33	struct rhashtable nexthop_ht;
 34	struct list_head nexthop_list;
 35	struct {
 36		/* One tree for each protocol: IPv4 and IPv6 */
 37		struct mlxsw_sp_lpm_tree *proto_trees[2];
 38		struct mlxsw_sp_lpm_tree *trees;
 39		unsigned int tree_count;
 40	} lpm;
 41	struct {
 42		struct delayed_work dw;
 43		unsigned long interval;	/* ms */
 44		atomic_t neigh_count;
 45	} neighs_update;
 46	struct delayed_work nexthop_probe_dw;
 47#define MLXSW_SP_UNRESOLVED_NH_PROBE_INTERVAL 5000 /* ms */
 48	struct list_head nexthop_neighs_list;
 49	struct list_head ipip_list;
 50	struct notifier_block nexthop_nb;
 51	struct notifier_block fib_nb;
 52	struct notifier_block netevent_nb;
 53	struct notifier_block inetaddr_nb;
 54	struct notifier_block inet6addr_nb;
 55	struct notifier_block netdevice_nb;
 56	struct notifier_block inetaddr_valid_nb;
 57	struct notifier_block inet6addr_valid_nb;
 58	const struct mlxsw_sp_rif_ops **rif_ops_arr;
 59	const struct mlxsw_sp_ipip_ops **ipip_ops_arr;
 60	struct mlxsw_sp_router_nve_decap nve_decap_config;
 61	struct mutex lock; /* Protects shared router resources */
 62	struct mlxsw_sp_fib_entry_op_ctx *ll_op_ctx;
 63	struct mlxsw_sp_crif *lb_crif;
 64	const struct mlxsw_sp_adj_grp_size_range *adj_grp_size_ranges;
 65	size_t adj_grp_size_ranges_count;
 66	struct delayed_work nh_grp_activity_dw;
 67	struct list_head nh_res_grp_list;
 68	bool inc_parsing_depth;
 69	refcount_t num_groups;
 70	u32 adj_trap_index;
 71};
 72
 73struct mlxsw_sp_rif_ipip_lb;
 74struct mlxsw_sp_rif_ipip_lb_config {
 75	enum mlxsw_reg_ritr_loopback_ipip_type lb_ipipt;
 76	u32 okey;
 77	enum mlxsw_sp_l3proto ul_protocol; /* Underlay. */
 78	union mlxsw_sp_l3addr saddr;
 79};
 80
 81enum mlxsw_sp_rif_counter_dir {
 82	MLXSW_SP_RIF_COUNTER_INGRESS,
 83	MLXSW_SP_RIF_COUNTER_EGRESS,
 84};
 85
 86struct mlxsw_sp_neigh_entry;
 87struct mlxsw_sp_nexthop;
 88struct mlxsw_sp_ipip_entry;
 89
 90struct mlxsw_sp_rif *mlxsw_sp_rif_by_index(const struct mlxsw_sp *mlxsw_sp,
 91					   u16 rif_index);
 92u16 mlxsw_sp_ipip_lb_rif_index(const struct mlxsw_sp_rif_ipip_lb *rif);
 93u16 mlxsw_sp_ipip_lb_ul_rif_id(const struct mlxsw_sp_rif_ipip_lb *lb_rif);
 94u32 mlxsw_sp_ipip_dev_ul_tb_id(const struct net_device *ol_dev);
 95int mlxsw_sp_rif_dev_ifindex(const struct mlxsw_sp_rif *rif);
 96bool mlxsw_sp_rif_has_dev(const struct mlxsw_sp_rif *rif);
 97bool mlxsw_sp_rif_dev_is(const struct mlxsw_sp_rif *rif,
 98			 const struct net_device *dev);
 99int mlxsw_sp_rif_counter_value_get(struct mlxsw_sp *mlxsw_sp,
100				   struct mlxsw_sp_rif *rif,
101				   enum mlxsw_sp_rif_counter_dir dir,
102				   u64 *cnt);
103void mlxsw_sp_rif_counter_free(struct mlxsw_sp_rif *rif,
104			       enum mlxsw_sp_rif_counter_dir dir);
105int mlxsw_sp_rif_counter_alloc(struct mlxsw_sp_rif *rif,
106			       enum mlxsw_sp_rif_counter_dir dir);
107struct mlxsw_sp_neigh_entry *
108mlxsw_sp_rif_neigh_next(struct mlxsw_sp_rif *rif,
109			struct mlxsw_sp_neigh_entry *neigh_entry);
110int mlxsw_sp_neigh_entry_type(struct mlxsw_sp_neigh_entry *neigh_entry);
111unsigned char *
112mlxsw_sp_neigh_entry_ha(struct mlxsw_sp_neigh_entry *neigh_entry);
113u32 mlxsw_sp_neigh4_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry);
114struct in6_addr *
115mlxsw_sp_neigh6_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry);
116
117#define mlxsw_sp_rif_neigh_for_each(neigh_entry, rif)				\
118	for (neigh_entry = mlxsw_sp_rif_neigh_next(rif, NULL); neigh_entry;	\
119	     neigh_entry = mlxsw_sp_rif_neigh_next(rif, neigh_entry))
120int mlxsw_sp_neigh_counter_get(struct mlxsw_sp *mlxsw_sp,
121			       struct mlxsw_sp_neigh_entry *neigh_entry,
122			       u64 *p_counter);
123void
124mlxsw_sp_neigh_entry_counter_update(struct mlxsw_sp *mlxsw_sp,
125				    struct mlxsw_sp_neigh_entry *neigh_entry,
126				    bool adding);
127bool mlxsw_sp_neigh_ipv6_ignore(struct mlxsw_sp_neigh_entry *neigh_entry);
128int __mlxsw_sp_ipip_entry_update_tunnel(struct mlxsw_sp *mlxsw_sp,
129					struct mlxsw_sp_ipip_entry *ipip_entry,
130					bool recreate_loopback,
131					bool keep_encap,
132					bool update_nexthops,
133					struct netlink_ext_ack *extack);
134void mlxsw_sp_ipip_entry_demote_tunnel(struct mlxsw_sp *mlxsw_sp,
135				       struct mlxsw_sp_ipip_entry *ipip_entry);
136bool
137mlxsw_sp_ipip_demote_tunnel_by_saddr(struct mlxsw_sp *mlxsw_sp,
138				     enum mlxsw_sp_l3proto ul_proto,
139				     union mlxsw_sp_l3addr saddr,
140				     u32 ul_tb_id,
141				     const struct mlxsw_sp_ipip_entry *except);
142struct mlxsw_sp_nexthop *mlxsw_sp_nexthop_next(struct mlxsw_sp_router *router,
143					       struct mlxsw_sp_nexthop *nh);
144bool mlxsw_sp_nexthop_is_forward(const struct mlxsw_sp_nexthop *nh);
145unsigned char *mlxsw_sp_nexthop_ha(struct mlxsw_sp_nexthop *nh);
146int mlxsw_sp_nexthop_indexes(struct mlxsw_sp_nexthop *nh, u32 *p_adj_index,
147			     u32 *p_adj_size, u32 *p_adj_hash_index);
148struct mlxsw_sp_rif *mlxsw_sp_nexthop_rif(struct mlxsw_sp_nexthop *nh);
149bool mlxsw_sp_nexthop_group_has_ipip(struct mlxsw_sp_nexthop *nh);
150#define mlxsw_sp_nexthop_for_each(nh, router)				\
151	for (nh = mlxsw_sp_nexthop_next(router, NULL); nh;		\
152	     nh = mlxsw_sp_nexthop_next(router, nh))
153int mlxsw_sp_nexthop_counter_get(struct mlxsw_sp *mlxsw_sp,
154				 struct mlxsw_sp_nexthop *nh, u64 *p_counter);
155int mlxsw_sp_nexthop_eth_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
156				struct mlxsw_sp_nexthop *nh, bool force,
157				char *ratr_pl);
158int mlxsw_sp_nexthop_counter_enable(struct mlxsw_sp *mlxsw_sp,
159				    struct mlxsw_sp_nexthop *nh);
160void mlxsw_sp_nexthop_counter_disable(struct mlxsw_sp *mlxsw_sp,
161				      struct mlxsw_sp_nexthop *nh);
162
163static inline bool mlxsw_sp_l3addr_eq(const union mlxsw_sp_l3addr *addr1,
164				      const union mlxsw_sp_l3addr *addr2)
165{
166	return !memcmp(addr1, addr2, sizeof(*addr1));
167}
168
169int mlxsw_sp_ipip_ecn_encap_init(struct mlxsw_sp *mlxsw_sp);
170int mlxsw_sp_ipip_ecn_decap_init(struct mlxsw_sp *mlxsw_sp);
171struct net_device *
172mlxsw_sp_ipip_netdev_ul_dev_get(const struct net_device *ol_dev);
173int mlxsw_sp_router_bridge_vlan_add(struct mlxsw_sp *mlxsw_sp,
174				    struct net_device *dev,
175				    u16 new_vid, bool is_pvid,
176				    struct netlink_ext_ack *extack);
177int mlxsw_sp_router_port_join_lag(struct mlxsw_sp_port *mlxsw_sp_port,
178				  struct net_device *lag_dev,
179				  struct netlink_ext_ack *extack);
180void mlxsw_sp_router_port_leave_lag(struct mlxsw_sp_port *mlxsw_sp_port,
181				    struct net_device *lag_dev);
182int mlxsw_sp_netdevice_enslavement_replay(struct mlxsw_sp *mlxsw_sp,
183					  struct net_device *upper_dev,
184					  struct netlink_ext_ack *extack);
185void mlxsw_sp_netdevice_deslavement_replay(struct mlxsw_sp *mlxsw_sp,
186					   struct net_device *dev);
187
188#endif /* _MLXSW_ROUTER_H_*/