From: Petr Machata <petrm@mellanox.com>
Date: Sat, 2 Sep 2017 23:49:24 +0200
Subject: mlxsw: spectrum_router: Support IPv6 overlay encap
Patch-mainline: v4.14-rc1
Git-commit: 8f28a3097645ae29a7c6835ed9323d6b6b8db169
References: bsc#1112374
Add the missing bits to recognize IPv6 next hops as IPIP ones to enable
offloading of IPv6 overlay encapsulation.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 20 +++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -3757,15 +3757,32 @@ mlxsw_sp_fib6_entry_rt_find(const struct
return NULL;
}
+static bool mlxsw_sp_nexthop6_ipip_type(const struct mlxsw_sp *mlxsw_sp,
+ const struct rt6_info *rt,
+ enum mlxsw_sp_ipip_type *ret)
+{
+ return rt->dst.dev &&
+ mlxsw_sp_netdev_ipip_type(mlxsw_sp, rt->dst.dev, ret);
+}
+
static int mlxsw_sp_nexthop6_type_init(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_nexthop_group *nh_grp,
struct mlxsw_sp_nexthop *nh,
const struct rt6_info *rt)
{
+ struct mlxsw_sp_router *router = mlxsw_sp->router;
struct net_device *dev = rt->dst.dev;
+ enum mlxsw_sp_ipip_type ipipt;
struct mlxsw_sp_rif *rif;
int err;
+ if (mlxsw_sp_nexthop6_ipip_type(mlxsw_sp, rt, &ipipt) &&
+ router->ipip_ops_arr[ipipt]->can_offload(mlxsw_sp, dev,
+ MLXSW_SP_L3_PROTO_IPV6)) {
+ nh->type = MLXSW_SP_NEXTHOP_TYPE_IPIP;
+ return mlxsw_sp_nexthop_ipip_init(mlxsw_sp, ipipt, nh, dev);
+ }
+
nh->type = MLXSW_SP_NEXTHOP_TYPE_ETH;
rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev);
if (!rif)
@@ -3815,7 +3832,8 @@ static void mlxsw_sp_nexthop6_fini(struc
static bool mlxsw_sp_rt6_is_gateway(const struct mlxsw_sp *mlxsw_sp,
const struct rt6_info *rt)
{
- return rt->rt6i_flags & RTF_GATEWAY;
+ return rt->rt6i_flags & RTF_GATEWAY ||
+ mlxsw_sp_nexthop6_ipip_type(mlxsw_sp, rt, NULL);
}
static struct mlxsw_sp_nexthop_group *