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/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
/* Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved */
#ifndef _MLXSW_ROUTER_H_
#define _MLXSW_ROUTER_H_
#include "spectrum.h"
#include "reg.h"
struct mlxsw_sp_router_nve_decap {
u32 ul_tb_id;
u32 tunnel_index;
enum mlxsw_sp_l3proto ul_proto;
union mlxsw_sp_l3addr ul_sip;
u8 valid:1;
};
struct mlxsw_sp_fib_entry_op_ctx {
u8 bulk_ok:1, /* Indicate to the low-level op it is ok to bulk
* the actual entry with the one that is the next
* in queue.
*/
initialized:1; /* Bit that the low-level op sets in case
* the context priv is initialized.
*/
struct list_head fib_entry_priv_list;
unsigned long event;
unsigned long ll_priv[];
};
static inline void
mlxsw_sp_fib_entry_op_ctx_clear(struct mlxsw_sp_fib_entry_op_ctx *op_ctx)
{
WARN_ON_ONCE(!list_empty(&op_ctx->fib_entry_priv_list));
memset(op_ctx, 0, sizeof(*op_ctx));
INIT_LIST_HEAD(&op_ctx->fib_entry_priv_list);
}
struct mlxsw_sp_router {
struct mlxsw_sp *mlxsw_sp;
struct mlxsw_sp_rif **rifs;
struct mlxsw_sp_vr *vrs;
struct rhashtable neigh_ht;
struct rhashtable nexthop_group_ht;
struct rhashtable nexthop_ht;
struct list_head nexthop_list;
struct {
/* One tree for each protocol: IPv4 and IPv6 */
struct mlxsw_sp_lpm_tree *proto_trees[2];
struct mlxsw_sp_lpm_tree *trees;
unsigned int tree_count;
} lpm;
struct {
struct delayed_work dw;
unsigned long interval; /* ms */
} neighs_update;
struct delayed_work nexthop_probe_dw;
#define MLXSW_SP_UNRESOLVED_NH_PROBE_INTERVAL 5000 /* ms */
struct list_head nexthop_neighs_list;
struct list_head ipip_list;
bool aborted;
struct notifier_block nexthop_nb;
struct notifier_block fib_nb;
struct notifier_block netevent_nb;
struct notifier_block inetaddr_nb;
struct notifier_block inet6addr_nb;
const struct mlxsw_sp_rif_ops **rif_ops_arr;
const struct mlxsw_sp_ipip_ops **ipip_ops_arr;
u32 adj_discard_index;
bool adj_discard_index_valid;
struct mlxsw_sp_router_nve_decap nve_decap_config;
struct mutex lock; /* Protects shared router resources */
struct work_struct fib_event_work;
struct list_head fib_event_queue;
spinlock_t fib_event_queue_lock; /* Protects fib event queue list */
/* One set of ops for each protocol: IPv4 and IPv6 */
const struct mlxsw_sp_router_ll_ops *proto_ll_ops[MLXSW_SP_L3_PROTO_MAX];
struct mlxsw_sp_fib_entry_op_ctx *ll_op_ctx;
u16 lb_rif_index;
struct mlxsw_sp_router_xm *xm;
const struct mlxsw_sp_adj_grp_size_range *adj_grp_size_ranges;
size_t adj_grp_size_ranges_count;
struct delayed_work nh_grp_activity_dw;
struct list_head nh_res_grp_list;
};
struct mlxsw_sp_fib_entry_priv {
refcount_t refcnt;
struct list_head list; /* Member in op_ctx->fib_entry_priv_list */
unsigned long priv[];
};
enum mlxsw_sp_fib_entry_op {
MLXSW_SP_FIB_ENTRY_OP_WRITE,
MLXSW_SP_FIB_ENTRY_OP_UPDATE,
MLXSW_SP_FIB_ENTRY_OP_DELETE,
};
/* Low-level router ops. Basically this is to handle the different
* register sets to work with ordinary and XM trees and FIB entries.
*/
struct mlxsw_sp_router_ll_ops {
int (*init)(struct mlxsw_sp *mlxsw_sp, u16 vr_id,
enum mlxsw_sp_l3proto proto);
int (*ralta_write)(struct mlxsw_sp *mlxsw_sp, char *xralta_pl);
int (*ralst_write)(struct mlxsw_sp *mlxsw_sp, char *xralst_pl);
int (*raltb_write)(struct mlxsw_sp *mlxsw_sp, char *xraltb_pl);
size_t fib_entry_op_ctx_size;
size_t fib_entry_priv_size;
void (*fib_entry_pack)(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
enum mlxsw_sp_l3proto proto, enum mlxsw_sp_fib_entry_op op,
u16 virtual_router, u8 prefix_len, unsigned char *addr,
struct mlxsw_sp_fib_entry_priv *priv);
void (*fib_entry_act_remote_pack)(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
enum mlxsw_reg_ralue_trap_action trap_action,
u16 trap_id, u32 adjacency_index, u16 ecmp_size);
void (*fib_entry_act_local_pack)(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
enum mlxsw_reg_ralue_trap_action trap_action,
u16 trap_id, u16 local_erif);
void (*fib_entry_act_ip2me_pack)(struct mlxsw_sp_fib_entry_op_ctx *op_ctx);
void (*fib_entry_act_ip2me_tun_pack)(struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
u32 tunnel_ptr);
int (*fib_entry_commit)(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_fib_entry_op_ctx *op_ctx,
bool *postponed_for_bulk);
bool (*fib_entry_is_committed)(struct mlxsw_sp_fib_entry_priv *priv);
};
struct mlxsw_sp_rif_ipip_lb;
struct mlxsw_sp_rif_ipip_lb_config {
enum mlxsw_reg_ritr_loopback_ipip_type lb_ipipt;
u32 okey;
enum mlxsw_sp_l3proto ul_protocol; /* Underlay. */
union mlxsw_sp_l3addr saddr;
};
enum mlxsw_sp_rif_counter_dir {
MLXSW_SP_RIF_COUNTER_INGRESS,
MLXSW_SP_RIF_COUNTER_EGRESS,
};
struct mlxsw_sp_neigh_entry;
struct mlxsw_sp_nexthop;
struct mlxsw_sp_ipip_entry;
struct mlxsw_sp_rif *mlxsw_sp_rif_by_index(const struct mlxsw_sp *mlxsw_sp,
u16 rif_index);
u16 mlxsw_sp_rif_index(const struct mlxsw_sp_rif *rif);
u16 mlxsw_sp_ipip_lb_rif_index(const struct mlxsw_sp_rif_ipip_lb *rif);
u16 mlxsw_sp_ipip_lb_ul_vr_id(const struct mlxsw_sp_rif_ipip_lb *rif);
u16 mlxsw_sp_ipip_lb_ul_rif_id(const struct mlxsw_sp_rif_ipip_lb *lb_rif);
u32 mlxsw_sp_ipip_dev_ul_tb_id(const struct net_device *ol_dev);
int mlxsw_sp_rif_dev_ifindex(const struct mlxsw_sp_rif *rif);
const struct net_device *mlxsw_sp_rif_dev(const struct mlxsw_sp_rif *rif);
int mlxsw_sp_rif_counter_value_get(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_rif *rif,
enum mlxsw_sp_rif_counter_dir dir,
u64 *cnt);
void mlxsw_sp_rif_counter_free(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_rif *rif,
enum mlxsw_sp_rif_counter_dir dir);
int mlxsw_sp_rif_counter_alloc(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_rif *rif,
enum mlxsw_sp_rif_counter_dir dir);
struct mlxsw_sp_neigh_entry *
mlxsw_sp_rif_neigh_next(struct mlxsw_sp_rif *rif,
struct mlxsw_sp_neigh_entry *neigh_entry);
int mlxsw_sp_neigh_entry_type(struct mlxsw_sp_neigh_entry *neigh_entry);
unsigned char *
mlxsw_sp_neigh_entry_ha(struct mlxsw_sp_neigh_entry *neigh_entry);
u32 mlxsw_sp_neigh4_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry);
struct in6_addr *
mlxsw_sp_neigh6_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry);
#define mlxsw_sp_rif_neigh_for_each(neigh_entry, rif) \
for (neigh_entry = mlxsw_sp_rif_neigh_next(rif, NULL); neigh_entry; \
neigh_entry = mlxsw_sp_rif_neigh_next(rif, neigh_entry))
int mlxsw_sp_neigh_counter_get(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_neigh_entry *neigh_entry,
u64 *p_counter);
void
mlxsw_sp_neigh_entry_counter_update(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_neigh_entry *neigh_entry,
bool adding);
bool mlxsw_sp_neigh_ipv6_ignore(struct mlxsw_sp_neigh_entry *neigh_entry);
int __mlxsw_sp_ipip_entry_update_tunnel(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_ipip_entry *ipip_entry,
bool recreate_loopback,
bool keep_encap,
bool update_nexthops,
struct netlink_ext_ack *extack);
void mlxsw_sp_ipip_entry_demote_tunnel(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_ipip_entry *ipip_entry);
bool
mlxsw_sp_ipip_demote_tunnel_by_saddr(struct mlxsw_sp *mlxsw_sp,
enum mlxsw_sp_l3proto ul_proto,
union mlxsw_sp_l3addr saddr,
u32 ul_tb_id,
const struct mlxsw_sp_ipip_entry *except);
struct mlxsw_sp_nexthop *mlxsw_sp_nexthop_next(struct mlxsw_sp_router *router,
struct mlxsw_sp_nexthop *nh);
bool mlxsw_sp_nexthop_is_forward(const struct mlxsw_sp_nexthop *nh);
unsigned char *mlxsw_sp_nexthop_ha(struct mlxsw_sp_nexthop *nh);
int mlxsw_sp_nexthop_indexes(struct mlxsw_sp_nexthop *nh, u32 *p_adj_index,
u32 *p_adj_size, u32 *p_adj_hash_index);
struct mlxsw_sp_rif *mlxsw_sp_nexthop_rif(struct mlxsw_sp_nexthop *nh);
bool mlxsw_sp_nexthop_group_has_ipip(struct mlxsw_sp_nexthop *nh);
#define mlxsw_sp_nexthop_for_each(nh, router) \
for (nh = mlxsw_sp_nexthop_next(router, NULL); nh; \
nh = mlxsw_sp_nexthop_next(router, nh))
int mlxsw_sp_nexthop_counter_get(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_nexthop *nh, u64 *p_counter);
int mlxsw_sp_nexthop_eth_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
struct mlxsw_sp_nexthop *nh, bool force,
char *ratr_pl);
void mlxsw_sp_nexthop_counter_alloc(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_nexthop *nh);
void mlxsw_sp_nexthop_counter_free(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_nexthop *nh);
static inline bool mlxsw_sp_l3addr_eq(const union mlxsw_sp_l3addr *addr1,
const union mlxsw_sp_l3addr *addr2)
{
return !memcmp(addr1, addr2, sizeof(*addr1));
}
int mlxsw_sp_ipip_ecn_encap_init(struct mlxsw_sp *mlxsw_sp);
int mlxsw_sp_ipip_ecn_decap_init(struct mlxsw_sp *mlxsw_sp);
extern const struct mlxsw_sp_router_ll_ops mlxsw_sp_router_ll_xm_ops;
int mlxsw_sp_router_xm_init(struct mlxsw_sp *mlxsw_sp);
void mlxsw_sp_router_xm_fini(struct mlxsw_sp *mlxsw_sp);
bool mlxsw_sp_router_xm_ipv4_is_supported(const struct mlxsw_sp *mlxsw_sp);
#endif /* _MLXSW_ROUTER_H_*/
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