drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h

   1 /*
   2  * drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h
   3  * Copyright (c) 2017 Mellanox Technologies. All rights reserved.
   4  * Copyright (c) 2017 Arkadi Sharshevsky <arkadis@mellanox.com>
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. Neither the names of the copyright holders nor the names of its
  15  *    contributors may be used to endorse or promote products derived from
  16  *    this software without specific prior written permission.
  17  *
  18  * Alternatively, this software may be distributed under the terms of the
  19  * GNU General Public License ("GPL") version 2 as published by the Free
  20  * Software Foundation.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  23  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #ifndef _MLXSW_ROUTER_H_
  36 #define _MLXSW_ROUTER_H_
  37
  38 #include "spectrum.h"
  39 #include "reg.h"
  40
  41 enum mlxsw_sp_l3proto {
  42         MLXSW_SP_L3_PROTO_IPV4,
  43         MLXSW_SP_L3_PROTO_IPV6,
  44 };
  45
  46 union mlxsw_sp_l3addr {
  47         __be32 addr4;
  48         struct in6_addr addr6;
  49 };
  50
  51 struct mlxsw_sp_rif_ipip_lb;
  52 struct mlxsw_sp_rif_ipip_lb_config {
  53         enum mlxsw_reg_ritr_loopback_ipip_type lb_ipipt;
  54         u32 okey;
  55         enum mlxsw_sp_l3proto ul_protocol; /* Underlay. */
  56         union mlxsw_sp_l3addr saddr;
  57 };
  58
  59 enum mlxsw_sp_rif_counter_dir {
  60         MLXSW_SP_RIF_COUNTER_INGRESS,
  61         MLXSW_SP_RIF_COUNTER_EGRESS,
  62 };
  63
  64 struct mlxsw_sp_neigh_entry;
  65 struct mlxsw_sp_nexthop;
  66 struct mlxsw_sp_ipip_entry;
  67
  68 struct mlxsw_sp_rif *mlxsw_sp_rif_by_index(const struct mlxsw_sp *mlxsw_sp,
  69                                            u16 rif_index);
  70 u16 mlxsw_sp_rif_index(const struct mlxsw_sp_rif *rif);
  71 u16 mlxsw_sp_ipip_lb_rif_index(const struct mlxsw_sp_rif_ipip_lb *rif);
  72 u16 mlxsw_sp_ipip_lb_ul_vr_id(const struct mlxsw_sp_rif_ipip_lb *rif);
  73 u32 mlxsw_sp_ipip_dev_ul_tb_id(const struct net_device *ol_dev);
  74 int mlxsw_sp_rif_dev_ifindex(const struct mlxsw_sp_rif *rif);
  75 u8 mlxsw_sp_router_port(const struct mlxsw_sp *mlxsw_sp);
  76 const struct net_device *mlxsw_sp_rif_dev(const struct mlxsw_sp_rif *rif);
  77 int mlxsw_sp_rif_counter_value_get(struct mlxsw_sp *mlxsw_sp,
  78                                    struct mlxsw_sp_rif *rif,
  79                                    enum mlxsw_sp_rif_counter_dir dir,
  80                                    u64 *cnt);
  81 void mlxsw_sp_rif_counter_free(struct mlxsw_sp *mlxsw_sp,
  82                                struct mlxsw_sp_rif *rif,
  83                                enum mlxsw_sp_rif_counter_dir dir);
  84 int mlxsw_sp_rif_counter_alloc(struct mlxsw_sp *mlxsw_sp,
  85                                struct mlxsw_sp_rif *rif,
  86                                enum mlxsw_sp_rif_counter_dir dir);
  87 struct mlxsw_sp_neigh_entry *
  88 mlxsw_sp_rif_neigh_next(struct mlxsw_sp_rif *rif,
  89                         struct mlxsw_sp_neigh_entry *neigh_entry);
  90 int mlxsw_sp_neigh_entry_type(struct mlxsw_sp_neigh_entry *neigh_entry);
  91 unsigned char *
  92 mlxsw_sp_neigh_entry_ha(struct mlxsw_sp_neigh_entry *neigh_entry);
  93 u32 mlxsw_sp_neigh4_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry);
  94 struct in6_addr *
  95 mlxsw_sp_neigh6_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry);
  96
  97 #define mlxsw_sp_rif_neigh_for_each(neigh_entry, rif)                           \
  98         for (neigh_entry = mlxsw_sp_rif_neigh_next(rif, NULL); neigh_entry;     \
  99              neigh_entry = mlxsw_sp_rif_neigh_next(rif, neigh_entry))
 100 int mlxsw_sp_neigh_counter_get(struct mlxsw_sp *mlxsw_sp,
 101                                struct mlxsw_sp_neigh_entry *neigh_entry,
 102                                u64 *p_counter);
 103 void
 104 mlxsw_sp_neigh_entry_counter_update(struct mlxsw_sp *mlxsw_sp,
 105                                     struct mlxsw_sp_neigh_entry *neigh_entry,
 106                                     bool adding);
 107 bool mlxsw_sp_neigh_ipv6_ignore(struct mlxsw_sp_neigh_entry *neigh_entry);
 108 int __mlxsw_sp_ipip_entry_update_tunnel(struct mlxsw_sp *mlxsw_sp,
 109                                         struct mlxsw_sp_ipip_entry *ipip_entry,
 110                                         bool recreate_loopback,
 111                                         bool keep_encap,
 112                                         bool update_nexthops,
 113                                         struct netlink_ext_ack *extack);
 114 void mlxsw_sp_ipip_entry_demote_tunnel(struct mlxsw_sp *mlxsw_sp,
 115                                        struct mlxsw_sp_ipip_entry *ipip_entry);
 116 bool
 117 mlxsw_sp_ipip_demote_tunnel_by_saddr(struct mlxsw_sp *mlxsw_sp,
 118                                      enum mlxsw_sp_l3proto ul_proto,
 119                                      union mlxsw_sp_l3addr saddr,
 120                                      u32 ul_tb_id,
 121                                      const struct mlxsw_sp_ipip_entry *except);
 122 struct mlxsw_sp_nexthop *mlxsw_sp_nexthop_next(struct mlxsw_sp_router *router,
 123                                                struct mlxsw_sp_nexthop *nh);
 124 bool mlxsw_sp_nexthop_offload(struct mlxsw_sp_nexthop *nh);
 125 unsigned char *mlxsw_sp_nexthop_ha(struct mlxsw_sp_nexthop *nh);
 126 int mlxsw_sp_nexthop_indexes(struct mlxsw_sp_nexthop *nh, u32 *p_adj_index,
 127                              u32 *p_adj_size, u32 *p_adj_hash_index);
 128 struct mlxsw_sp_rif *mlxsw_sp_nexthop_rif(struct mlxsw_sp_nexthop *nh);
 129 bool mlxsw_sp_nexthop_group_has_ipip(struct mlxsw_sp_nexthop *nh);
 130 #define mlxsw_sp_nexthop_for_each(nh, router)                           \
 131         for (nh = mlxsw_sp_nexthop_next(router, NULL); nh;              \
 132              nh = mlxsw_sp_nexthop_next(router, nh))
 133 int mlxsw_sp_nexthop_counter_get(struct mlxsw_sp *mlxsw_sp,
 134                                  struct mlxsw_sp_nexthop *nh, u64 *p_counter);
 135 int mlxsw_sp_nexthop_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index,
 136                             struct mlxsw_sp_nexthop *nh);
 137 void mlxsw_sp_nexthop_counter_alloc(struct mlxsw_sp *mlxsw_sp,
 138                                     struct mlxsw_sp_nexthop *nh);
 139 void mlxsw_sp_nexthop_counter_free(struct mlxsw_sp *mlxsw_sp,
 140                                    struct mlxsw_sp_nexthop *nh);
 141
 142 static inline bool mlxsw_sp_l3addr_eq(const union mlxsw_sp_l3addr *addr1,
 143                                       const union mlxsw_sp_l3addr *addr2)
 144 {
 145         return !memcmp(addr1, addr2, sizeof(*addr1));
 146 }
 147
 148 #endif /* _MLXSW_ROUTER_H_*/