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mlxsw: spectrum_router: Correctly remove nexthop groups 

At the end of the nexthop initialization process we determine whether
the nexthop should be offloaded or not based on the NUD state of the
neighbour representing it. After all the nexthops were initialized we
refresh the nexthop group and potentially offload it to the device, in
case some of the nexthops were resolved.

Make the destruction of a nexthop group symmetric with its creation by
marking all nexthops as invalid and then refresh the nexthop group to
make sure it was removed from the device's tables.

Fixes: b2157149b0 ("mlxsw: spectrum_router: Add the nexthop neigh activity update")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2016-12-23 09:32:50 +01:00 committed by David S. Miller
parent 93a87e5e79
commit 58312125da
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
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@ -1396,6 +1396,7 @@ static void mlxsw_sp_nexthop_fini(struct mlxsw_sp *mlxsw_sp,
{ {
struct mlxsw_sp_neigh_entry *neigh_entry = nh->neigh_entry; struct mlxsw_sp_neigh_entry *neigh_entry = nh->neigh_entry;
__mlxsw_sp_nexthop_neigh_update(nh, true);
list_del(&nh->neigh_list_node); list_del(&nh->neigh_list_node);
/* If that is the last nexthop connected to that neigh, remove from /* If that is the last nexthop connected to that neigh, remove from
@ -1454,6 +1455,8 @@ mlxsw_sp_nexthop_group_destroy(struct mlxsw_sp *mlxsw_sp,
nh = &nh_grp->nexthops[i]; nh = &nh_grp->nexthops[i];
mlxsw_sp_nexthop_fini(mlxsw_sp, nh); mlxsw_sp_nexthop_fini(mlxsw_sp, nh);
} }
mlxsw_sp_nexthop_group_refresh(mlxsw_sp, nh_grp);
WARN_ON_ONCE(nh_grp->adj_index_valid);
kfree(nh_grp); kfree(nh_grp);
} }