mlxsw: spectrum_router: Handle encap to demoted tunnels

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Some tunnels that are offloadable on their own can nonetheless be
demoted to slow path if their local address is in conflict with that of
another tunnel. When a route is formed for such a tunnel,
mlxsw_sp_nexthop_ipip_init() fails to find the corresponding IPIP entry,
and that triggers a FIB abort.

Resolve the problem by not assuming that a tunnel for which
mlxsw_sp_ipip_ops.can_offload() holds also automatically has an IPIP
entry.

Fixes: af641713e9 ("mlxsw: spectrum_router: Onload conflicting tunnels")
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>

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This commit is contained in:

Petr Machata 2017-11-28 13:17:13 +01:00 • committed by David S. Miller

parent cab43d9c87

commit d97cda5f46

1 changed files with 29 additions and 32 deletions

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

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