diff options
| author | Dima Chumak <dchumak@nvidia.com> | 2021-12-13 13:21:46 +0200 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2022-01-27 12:37:36 -0800 |
| commit | 60dc0ef674ecbc944e2c236c8a71ce26440cb1a9 (patch) | |
| tree | 3f6a0a61b5c8f0556ddd38c530f7fc99e7ffb1f5 | |
| parent | 8348b71ccd921d0bff21b6f480ecc1e3a5033359 (diff) | |
net/mlx5: VLAN push on RX, pop on TX
Some older NIC hardware isn't capable of doing VLAN push on RX and pop
on TX.
A workaround has been added in software to support it, but it has a
performance penalty since it requires a hairpin + loopback.
There's no such limitation with the newer NICs, so no need to pay the
price of the w/a. With this change the software w/a is disabled for
certain HW versions and steering modes that support it.
Signed-off-by: Dima Chumak <dchumak@nvidia.com>
Reviewed-by: Oz Shlomo <ozsh@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c index 4b354aed784a..ee568bf34ae2 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c @@ -224,7 +224,9 @@ mlx5_eswitch_termtbl_required(struct mlx5_eswitch *esw, return false; /* push vlan on RX */ - if (flow_act->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH) + if (flow_act->action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH && + !(mlx5_fs_get_capabilities(esw->dev, MLX5_FLOW_NAMESPACE_FDB) & + MLX5_FLOW_STEERING_CAP_VLAN_PUSH_ON_RX)) return true; /* hairpin */ |