drivers/net/ethernet/mellanox/mlxsw/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
  10 enum mlxsw_sp_l3proto {
  11         MLXSW_SP_L3_PROTO_IPV4,
  12         MLXSW_SP_L3_PROTO_IPV6,
  13 #define MLXSW_SP_L3_PROTO_MAX   (MLXSW_SP_L3_PROTO_IPV6 + 1)
  14 };
  15
  16 union mlxsw_sp_l3addr {
  17         __be32 addr4;
  18         struct in6_addr addr6;
  19 };
  20
  21 struct mlxsw_sp_rif_ipip_lb;
  22 struct mlxsw_sp_rif_ipip_lb_config {
  23         enum mlxsw_reg_ritr_loopback_ipip_type lb_ipipt;
  24         u32 okey;
  25         enum mlxsw_sp_l3proto ul_protocol; /* Underlay. */
  26         union mlxsw_sp_l3addr saddr;
  27 };
  28
  29 enum mlxsw_sp_rif_counter_dir {
  30         MLXSW_SP_RIF_COUNTER_INGRESS,
  31         MLXSW_SP_RIF_COUNTER_EGRESS,
  32 };
  33
  34 struct mlxsw_sp_neigh_entry;
  35 struct mlxsw_sp_nexthop;
  36 struct mlxsw_sp_ipip_entry;
  37
  38 struct mlxsw_sp_rif *mlxsw_sp_rif_find_by_dev(const struct mlxsw_sp *mlxsw_sp,
  39                                               const struct net_device *dev);
  40 struct mlxsw_sp_rif *mlxsw_sp_rif_by_index(const struct mlxsw_sp *mlxsw_sp,
  41                                            u16 rif_index);
  42 u16 mlxsw_sp_rif_index(const struct mlxsw_sp_rif *rif);
  43 u16 mlxsw_sp_ipip_lb_rif_index(const struct mlxsw_sp_rif_ipip_lb *rif);
  44 u16 mlxsw_sp_ipip_lb_ul_vr_id(const struct mlxsw_sp_rif_ipip_lb *rif);
  45 u32 mlxsw_sp_ipip_dev_ul_tb_id(const struct net_device *ol_dev);
  46 int mlxsw_sp_rif_dev_ifindex(const struct mlxsw_sp_rif *rif);
  47 u8 mlxsw_sp_router_port(const struct mlxsw_sp *mlxsw_sp);
  48 const struct net_device *mlxsw_sp_rif_dev(const struct mlxsw_sp_rif *rif);
  49 struct mlxsw_sp_fid *mlxsw_sp_rif_fid(const struct mlxsw_sp_rif *rif);
  50 int mlxsw_sp_rif_counter_value_get(struct mlxsw_sp *mlxsw_sp,
  51                                    struct mlxsw_sp_rif *rif,
  52                                    enum mlxsw_sp_rif_counter_dir dir,
  53                                    u64 *cnt);
  54 void mlxsw_sp_rif_counter_free(struct mlxsw_sp *mlxsw_sp,
  55                                struct mlxsw_sp_rif *rif,
  56                                enum mlxsw_sp_rif_counter_dir dir);
  57 int mlxsw_sp_rif_counter_alloc(struct mlxsw_sp *mlxsw_sp,
  58                                struct mlxsw_sp_rif *rif,
  59                                enum mlxsw_sp_rif_counter_dir dir);
  60 struct mlxsw_sp_neigh_entry *
  61 mlxsw_sp_rif_neigh_next(struct mlxsw_sp_rif *rif,
  62                         struct mlxsw_sp_neigh_entry *neigh_entry);
  63 int mlxsw_sp_neigh_entry_type(struct mlxsw_sp_neigh_entry *neigh_entry);
  64 unsigned char *
  65 mlxsw_sp_neigh_entry_ha(struct mlxsw_sp_neigh_entry *neigh_entry);
  66 u32 mlxsw_sp_neigh4_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry);
  67 struct in6_addr *
  68 mlxsw_sp_neigh6_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry);
  69
  70 #define mlxsw_sp_rif_neigh_for_each(neigh_entry, rif)                           \
  71         for (neigh_entry = mlxsw_sp_rif_neigh_next(rif, NULL); neigh_entry;     \
  72              neigh_entry = mlxsw_sp_rif_neigh_next(rif, neigh_entry))
  73 int mlxsw_sp_neigh_counter_get(struct mlxsw_sp *mlxsw_sp,
  74                                struct mlxsw_sp_neigh_entry *neigh_entry,
  75                                u64 *p_counter);
  76 void
  77 mlxsw_sp_neigh_entry_counter_update(struct mlxsw_sp *mlxsw_sp,
  78                                     struct mlxsw_sp_neigh_entry *neigh_entry,
  79                                     bool adding);
  80 bool mlxsw_sp_neigh_ipv6_ignore(struct mlxsw_sp_neigh_entry *neigh_entry);
  81 int __mlxsw_sp_ipip_entry_update_tunnel(struct mlxsw_sp *mlxsw_sp,
  82                                         struct mlxsw_sp_ipip_entry *ipip_entry,
  83                                         bool recreate_loopback,
  84                                         bool keep_encap,
  85                                         bool update_nexthops,
  86                                         struct netlink_ext_ack *extack);
  87 void mlxsw_sp_ipip_entry_demote_tunnel(struct mlxsw_sp *mlxsw_sp,
  88                                        struct mlxsw_sp_ipip_entry *ipip_entry);
  89 bool
  90 mlxsw_sp_ipip_demote_tunnel_by_saddr(struct mlxsw_sp *mlxsw_sp,
  91                                      enum mlxsw_sp_l3proto ul_proto,
  92                                      union mlxsw_sp_l3addr saddr,
  93                                      u32 ul_tb_id,
  94                                      const struct mlxsw_sp_ipip_entry *except);
  95 struct mlxsw_sp_nexthop *mlxsw_sp_nexthop_next(struct mlxsw_sp_router *router,
  96                                                struct mlxsw_sp_nexthop *nh);
  97 bool mlxsw_sp_nexthop_offload(struct mlxsw_sp_nexthop *nh);
  98 unsigned char *mlxsw_sp_nexthop_ha(struct mlxsw_sp_nexthop *nh);
  99 int mlxsw_sp_nexthop_indexes(struct mlxsw_sp_nexthop *nh, u32 *p_adj_index,
 100                              u32 *p_adj_size, u32 *p_adj_hash_index);
 101 struct mlxsw_sp_rif *mlxsw_sp_nexthop_rif(struct mlxsw_sp_nexthop *nh);
 102 bool mlxsw_sp_nexthop_group_has_ipip(struct mlxsw_sp_nexthop *nh);
 103 #define mlxsw_sp_nexthop_for_each(nh, router)                           \
 104         for (nh = mlxsw_sp_nexthop_next(router, NULL); nh;              \
 105              nh = mlxsw_sp_nexthop_next(router, nh))
 106 int mlxsw_sp_nexthop_counter_get(struct mlxsw_sp *mlxsw_sp,
 107                                  struct mlxsw_sp_nexthop *nh, u64 *p_counter);
 108 int mlxsw_sp_nexthop_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
 109                             struct mlxsw_sp_nexthop *nh);
 110 void mlxsw_sp_nexthop_counter_alloc(struct mlxsw_sp *mlxsw_sp,
 111                                     struct mlxsw_sp_nexthop *nh);
 112 void mlxsw_sp_nexthop_counter_free(struct mlxsw_sp *mlxsw_sp,
 113                                    struct mlxsw_sp_nexthop *nh);
 114
 115 static inline bool mlxsw_sp_l3addr_eq(const union mlxsw_sp_l3addr *addr1,
 116                                       const union mlxsw_sp_l3addr *addr2)
 117 {
 118         return !memcmp(addr1, addr2, sizeof(*addr1));
 119 }
 120
 121 #endif /* _MLXSW_ROUTER_H_*/