diff options
| author | Ido Schimmel <idosch@mellanox.com> | 2017-09-01 11:58:55 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-09-01 20:01:36 +0300 |
| commit | d3b6d3774fc2b636b12f8ef6367ed294861469ed (patch) | |
| tree | f84e1c2dd0c703dde5a24693e638c83bb2b043b8 | |
| parent | 843bd2b38d7f3929e0fa4dd7e8061ba9da7a3961 (diff) | |
| download | linux-d3b6d3774fc2b636b12f8ef6367ed294861469ed.tar.xz | |
mlxsw: spectrum_router: Trap packets hitting anycast routes
I relied on the fact that anycast routes use the loopback device as
their nexthop device to trap packets hitting them to the CPU.
After commit 4832c30d5458 ("net: ipv6: put host and anycast routes on
device with address") this is no longer the case and such routes are
programmed with a forward action (note the 'offload' flag):
anycast cafe:: dev enp3s0np7 proto kernel metric 0 offload pref medium
This will prevent the router from locally receiving packets destined to
the Subnet-Router anycast address.
Fix this by specifically programming anycast routes with action trap,
which results in the following output:
anycast cafe:: dev enp3s0np7 proto kernel metric 0 pref medium
Fixes: 4832c30d5458 ("net: ipv6: put host and anycast routes on device with address")
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>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index 0cf68102d113..00e3aec2d086 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -3659,7 +3659,7 @@ static void mlxsw_sp_fib6_entry_type_set(struct mlxsw_sp_fib_entry *fib_entry, * local, which will cause them to be trapped with a lower * priority than packets that need to be locally received. */ - if (rt->rt6i_flags & RTF_LOCAL) + if (rt->rt6i_flags & (RTF_LOCAL | RTF_ANYCAST)) fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_TRAP; else if (rt->rt6i_flags & RTF_REJECT) fib_entry->type = MLXSW_SP_FIB_ENTRY_TYPE_LOCAL; |