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net/mlx5: E-Switch, Use vport metadata matching only when mandatory

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Multi-port RoCE mode requires tagging traffic that passes through the
vport.
This matching can cause performance degradation, therefore disable it
and use the legacy matching on vhca_id and source_port when possible.

Fixes: 92ab1eb392 ("net/mlx5: E-Switch, Enable vport metadata matching if firmware supports it")
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Majd Dibbiny 2020-01-27 15:50:29 +02:00 committed by Saeed Mahameed
parent 2f5438ca0e
commit 1e62e222db
1 changed files with 13 additions and 1 deletions
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14
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
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@ -2021,6 +2021,18 @@ esw_check_vport_match_metadata_supported(const struct mlx5_eswitch *esw)
return true;
}
static bool
esw_check_vport_match_metadata_mandatory(const struct mlx5_eswitch *esw)
{
return mlx5_core_mp_enabled(esw->dev);
}
static bool esw_use_vport_metadata(const struct mlx5_eswitch *esw)
{
return esw_check_vport_match_metadata_mandatory(esw) &&
esw_check_vport_match_metadata_supported(esw);
}
int
esw_vport_create_offloads_acl_tables(struct mlx5_eswitch *esw,
struct mlx5_vport *vport)
@ -2059,7 +2071,7 @@ static int esw_create_uplink_offloads_acl_tables(struct mlx5_eswitch *esw)
struct mlx5_vport *vport;
int err;
if (esw_check_vport_match_metadata_supported(esw))
if (esw_use_vport_metadata(esw))
esw->flags |= MLX5_ESWITCH_VPORT_MATCH_METADATA;
vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_UPLINK);