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| author |   Amit Cohen <amcohen@nvidia.com> | 2021-09-23 15:36:59 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-09-24 10:26:52 +0100 |
| commit | 8d4f10463cd67cd5a7aeff74af0a91cc07f94fd8 (patch) | |
| tree | 33ea89c3851053bbcc446784dab4de71ef42245f /drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c | |
| parent | mlxsw: Add IPV6_ADDRESS kvdl entry type (diff) | |
| download | linux-8d4f10463cd67cd5a7aeff74af0a91cc07f94fd8.tar.xz linux-8d4f10463cd67cd5a7aeff74af0a91cc07f94fd8.zip | |
mlxsw: spectrum_router: Increase parsing depth for IPv6 decapsulation
The Spectrum ASIC has a configurable limit on how deep into the packet
it parses. By default, the limit is 96 bytes.
For IP-in-IP packets, with IPv6 outer and inner headers, the default
parsing depth is not enough and without increasing it such packets cannot
be properly decapsulated.
Use the existing API to set parsing depth, call it once for each
decapsulation entry when it is created/destroyed.
There is no need to protect the code with new mutex because 'router->lock'
is already taken in these code paths.
Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c index 4bb4a3e3a2aa..37a1ad92ac91 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ipip.c @@ -316,6 +316,7 @@ mlxsw_sp_ipip_ol_netdev_change_gre4(struct mlxsw_sp *mlxsw_sp, static const struct mlxsw_sp_ipip_ops mlxsw_sp_ipip_gre4_ops = { .dev_type = ARPHRD_IPGRE, .ul_proto = MLXSW_SP_L3_PROTO_IPV4, + .inc_parsing_depth = false, .parms_init = mlxsw_sp_ipip_netdev_parms_init_gre4, .nexthop_update = mlxsw_sp_ipip_nexthop_update_gre4, .decap_config = mlxsw_sp_ipip_decap_config_gre4, @@ -379,6 +380,7 @@ mlxsw_sp1_ipip_ol_netdev_change_gre6(struct mlxsw_sp *mlxsw_sp, static const struct mlxsw_sp_ipip_ops mlxsw_sp1_ipip_gre6_ops = { .dev_type = ARPHRD_IP6GRE, .ul_proto = MLXSW_SP_L3_PROTO_IPV6, + .inc_parsing_depth = true, .parms_init = mlxsw_sp1_ipip_netdev_parms_init_gre6, .nexthop_update = mlxsw_sp1_ipip_nexthop_update_gre6, .decap_config = mlxsw_sp1_ipip_decap_config_gre6, |