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 #define MLXSW_SP_L3_PROTO_MAX (MLXSW_SP_L3_PROTO_IPV6 + 1) 45 }; 46 47 union mlxsw_sp_l3addr { 48 __be32 addr4; 49 struct in6_addr addr6; 50 }; 51 52 struct mlxsw_sp_rif_ipip_lb; 53 struct mlxsw_sp_rif_ipip_lb_config { 54 enum mlxsw_reg_ritr_loopback_ipip_type lb_ipipt; 55 u32 okey; 56 enum mlxsw_sp_l3proto ul_protocol; /* Underlay. */ 57 union mlxsw_sp_l3addr saddr; 58 }; 59 60 enum mlxsw_sp_rif_counter_dir { 61 MLXSW_SP_RIF_COUNTER_INGRESS, 62 MLXSW_SP_RIF_COUNTER_EGRESS, 63 }; 64 65 struct mlxsw_sp_neigh_entry; 66 struct mlxsw_sp_nexthop; 67 struct mlxsw_sp_ipip_entry; 68 69 struct mlxsw_sp_rif *mlxsw_sp_rif_find_by_dev(const struct mlxsw_sp *mlxsw_sp, 70 const struct net_device *dev); 71 struct mlxsw_sp_rif *mlxsw_sp_rif_by_index(const struct mlxsw_sp *mlxsw_sp, 72 u16 rif_index); 73 u16 mlxsw_sp_rif_index(const struct mlxsw_sp_rif *rif); 74 u16 mlxsw_sp_ipip_lb_rif_index(const struct mlxsw_sp_rif_ipip_lb *rif); 75 u16 mlxsw_sp_ipip_lb_ul_vr_id(const struct mlxsw_sp_rif_ipip_lb *rif); 76 u32 mlxsw_sp_ipip_dev_ul_tb_id(const struct net_device *ol_dev); 77 int mlxsw_sp_rif_dev_ifindex(const struct mlxsw_sp_rif *rif); 78 u8 mlxsw_sp_router_port(const struct mlxsw_sp *mlxsw_sp); 79 const struct net_device *mlxsw_sp_rif_dev(const struct mlxsw_sp_rif *rif); 80 struct mlxsw_sp_fid *mlxsw_sp_rif_fid(const struct mlxsw_sp_rif *rif); 81 int mlxsw_sp_rif_counter_value_get(struct mlxsw_sp *mlxsw_sp, 82 struct mlxsw_sp_rif *rif, 83 enum mlxsw_sp_rif_counter_dir dir, 84 u64 *cnt); 85 void mlxsw_sp_rif_counter_free(struct mlxsw_sp *mlxsw_sp, 86 struct mlxsw_sp_rif *rif, 87 enum mlxsw_sp_rif_counter_dir dir); 88 int mlxsw_sp_rif_counter_alloc(struct mlxsw_sp *mlxsw_sp, 89 struct mlxsw_sp_rif *rif, 90 enum mlxsw_sp_rif_counter_dir dir); 91 struct mlxsw_sp_neigh_entry * 92 mlxsw_sp_rif_neigh_next(struct mlxsw_sp_rif *rif, 93 struct mlxsw_sp_neigh_entry *neigh_entry); 94 int mlxsw_sp_neigh_entry_type(struct mlxsw_sp_neigh_entry *neigh_entry); 95 unsigned char * 96 mlxsw_sp_neigh_entry_ha(struct mlxsw_sp_neigh_entry *neigh_entry); 97 u32 mlxsw_sp_neigh4_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry); 98 struct in6_addr * 99 mlxsw_sp_neigh6_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry); 100 101 #define mlxsw_sp_rif_neigh_for_each(neigh_entry, rif) \ 102 for (neigh_entry = mlxsw_sp_rif_neigh_next(rif, NULL); neigh_entry; \ 103 neigh_entry = mlxsw_sp_rif_neigh_next(rif, neigh_entry)) 104 int mlxsw_sp_neigh_counter_get(struct mlxsw_sp *mlxsw_sp, 105 struct mlxsw_sp_neigh_entry *neigh_entry, 106 u64 *p_counter); 107 void 108 mlxsw_sp_neigh_entry_counter_update(struct mlxsw_sp *mlxsw_sp, 109 struct mlxsw_sp_neigh_entry *neigh_entry, 110 bool adding); 111 bool mlxsw_sp_neigh_ipv6_ignore(struct mlxsw_sp_neigh_entry *neigh_entry); 112 int __mlxsw_sp_ipip_entry_update_tunnel(struct mlxsw_sp *mlxsw_sp, 113 struct mlxsw_sp_ipip_entry *ipip_entry, 114 bool recreate_loopback, 115 bool keep_encap, 116 bool update_nexthops, 117 struct netlink_ext_ack *extack); 118 void mlxsw_sp_ipip_entry_demote_tunnel(struct mlxsw_sp *mlxsw_sp, 119 struct mlxsw_sp_ipip_entry *ipip_entry); 120 bool 121 mlxsw_sp_ipip_demote_tunnel_by_saddr(struct mlxsw_sp *mlxsw_sp, 122 enum mlxsw_sp_l3proto ul_proto, 123 union mlxsw_sp_l3addr saddr, 124 u32 ul_tb_id, 125 const struct mlxsw_sp_ipip_entry *except); 126 struct mlxsw_sp_nexthop *mlxsw_sp_nexthop_next(struct mlxsw_sp_router *router, 127 struct mlxsw_sp_nexthop *nh); 128 bool mlxsw_sp_nexthop_offload(struct mlxsw_sp_nexthop *nh); 129 unsigned char *mlxsw_sp_nexthop_ha(struct mlxsw_sp_nexthop *nh); 130 int mlxsw_sp_nexthop_indexes(struct mlxsw_sp_nexthop *nh, u32 *p_adj_index, 131 u32 *p_adj_size, u32 *p_adj_hash_index); 132 struct mlxsw_sp_rif *mlxsw_sp_nexthop_rif(struct mlxsw_sp_nexthop *nh); 133 bool mlxsw_sp_nexthop_group_has_ipip(struct mlxsw_sp_nexthop *nh); 134 #define mlxsw_sp_nexthop_for_each(nh, router) \ 135 for (nh = mlxsw_sp_nexthop_next(router, NULL); nh; \ 136 nh = mlxsw_sp_nexthop_next(router, nh)) 137 int mlxsw_sp_nexthop_counter_get(struct mlxsw_sp *mlxsw_sp, 138 struct mlxsw_sp_nexthop *nh, u64 *p_counter); 139 int mlxsw_sp_nexthop_update(struct mlxsw_sp *mlxsw_sp, u32 adj_index, 140 struct mlxsw_sp_nexthop *nh); 141 void mlxsw_sp_nexthop_counter_alloc(struct mlxsw_sp *mlxsw_sp, 142 struct mlxsw_sp_nexthop *nh); 143 void mlxsw_sp_nexthop_counter_free(struct mlxsw_sp *mlxsw_sp, 144 struct mlxsw_sp_nexthop *nh); 145 146 static inline bool mlxsw_sp_l3addr_eq(const union mlxsw_sp_l3addr *addr1, 147 const union mlxsw_sp_l3addr *addr2) 148 { 149 return !memcmp(addr1, addr2, sizeof(*addr1)); 150 } 151 152 #endif /* _MLXSW_ROUTER_H_*/ 153