From 3c55bdaca015839ca1d1e5695e7667a9bcfa6e35 Mon Sep 17 00:00:00 2001 From: Ido Schimmel Date: Wed, 21 Nov 2018 08:02:46 +0000 Subject: [PATCH] mlxsw: spectrum_nve: Add API to resolve learned IP addresses FDB notifications for entries learned from an NVE tunnel contain the IP address of the remote VTEP. In the case of IPv4 underlay, the IP address is specified as-is. IPv6 addresses on the other hand, are specified as handles which then need to be used to query the actual address from the device. Only IPv4 underlay is currently supported, so we cannot receive notifications for IPv6 addresses and therefore an error is returned when one tries to resolve such an address. Signed-off-by: Ido Schimmel Reviewed-by: Petr Machata Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlxsw/spectrum.h | 3 +++ drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c | 14 ++++++++++++++ 2 files changed, 17 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h index 879ac65..973a9d2 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h @@ -813,6 +813,9 @@ struct mlxsw_sp_nve_params { extern const struct mlxsw_sp_nve_ops *mlxsw_sp1_nve_ops_arr[]; extern const struct mlxsw_sp_nve_ops *mlxsw_sp2_nve_ops_arr[]; +int mlxsw_sp_nve_learned_ip_resolve(struct mlxsw_sp *mlxsw_sp, u32 uip, + enum mlxsw_sp_l3proto proto, + union mlxsw_sp_l3addr *addr); int mlxsw_sp_nve_flood_ip_add(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fid *fid, enum mlxsw_sp_l3proto proto, diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c index 4498e3b..c4d5a08 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c @@ -174,6 +174,20 @@ mlxsw_sp_nve_mc_record_ops_arr[] = { [MLXSW_SP_L3_PROTO_IPV6] = &mlxsw_sp_nve_mc_record_ipv6_ops, }; +int mlxsw_sp_nve_learned_ip_resolve(struct mlxsw_sp *mlxsw_sp, u32 uip, + enum mlxsw_sp_l3proto proto, + union mlxsw_sp_l3addr *addr) +{ + switch (proto) { + case MLXSW_SP_L3_PROTO_IPV4: + addr->addr4 = cpu_to_be32(uip); + return 0; + default: + WARN_ON(1); + return -EINVAL; + } +} + static struct mlxsw_sp_nve_mc_list * mlxsw_sp_nve_mc_list_find(struct mlxsw_sp *mlxsw_sp, const struct mlxsw_sp_nve_mc_list_key *key) -- 2.7.4