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net/mlx5: E-switch, Combine metadata enable/disable functionality 

Except bit toggling code, rest of the code is same to enable/disable
metadata passing functionality.
Hence, combine them to single function and control using enable flag.

Also instead of checking metadata supported at multiple places,
fold into the helper function.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Parav Pandit 2019-07-29 21:13:02 +00:00 committed by Saeed Mahameed
parent 6cedde4513
commit 332bd3a5b9
1 changed files with 13 additions and 37 deletions
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50
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
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@ -587,13 +587,16 @@ void mlx5_eswitch_del_send_to_vport_rule(struct mlx5_flow_handle *rule)
mlx5_del_flow_rules(rule);
}
static int mlx5_eswitch_enable_passing_vport_metadata(struct mlx5_eswitch *esw)
static int esw_set_passing_vport_metadata(struct mlx5_eswitch *esw, bool enable)
{
u32 out[MLX5_ST_SZ_DW(query_esw_vport_context_out)] = {};
u32 in[MLX5_ST_SZ_DW(modify_esw_vport_context_in)] = {};
u8 fdb_to_vport_reg_c_id;
int err;
if (!mlx5_eswitch_vport_match_metadata_enabled(esw))
return 0;
err = mlx5_eswitch_query_esw_vport_context(esw, esw->manager_vport,
out, sizeof(out));
if (err)
@ -602,33 +605,10 @@ static int mlx5_eswitch_enable_passing_vport_metadata(struct mlx5_eswitch *esw)
fdb_to_vport_reg_c_id = MLX5_GET(query_esw_vport_context_out, out,
esw_vport_context.fdb_to_vport_reg_c_id);
fdb_to_vport_reg_c_id |= MLX5_FDB_TO_VPORT_REG_C_0;
MLX5_SET(modify_esw_vport_context_in, in,
esw_vport_context.fdb_to_vport_reg_c_id, fdb_to_vport_reg_c_id);
MLX5_SET(modify_esw_vport_context_in, in,
field_select.fdb_to_vport_reg_c_id, 1);
return mlx5_eswitch_modify_esw_vport_context(esw, esw->manager_vport,
in, sizeof(in));
}
static int mlx5_eswitch_disable_passing_vport_metadata(struct mlx5_eswitch *esw)
{
u32 out[MLX5_ST_SZ_DW(query_esw_vport_context_out)] = {};
u32 in[MLX5_ST_SZ_DW(modify_esw_vport_context_in)] = {};
u8 fdb_to_vport_reg_c_id;
int err;
err = mlx5_eswitch_query_esw_vport_context(esw, esw->manager_vport,
out, sizeof(out));
if (err)
return err;
fdb_to_vport_reg_c_id = MLX5_GET(query_esw_vport_context_out, out,
esw_vport_context.fdb_to_vport_reg_c_id);
fdb_to_vport_reg_c_id &= ~MLX5_FDB_TO_VPORT_REG_C_0;
if (enable)
fdb_to_vport_reg_c_id |= MLX5_FDB_TO_VPORT_REG_C_0;
else
fdb_to_vport_reg_c_id &= ~MLX5_FDB_TO_VPORT_REG_C_0;
MLX5_SET(modify_esw_vport_context_in, in,
esw_vport_context.fdb_to_vport_reg_c_id, fdb_to_vport_reg_c_id);
@ -2138,11 +2118,9 @@ int esw_offloads_init(struct mlx5_eswitch *esw)
if (err)
return err;
if (mlx5_eswitch_vport_match_metadata_enabled(esw)) {
err = mlx5_eswitch_enable_passing_vport_metadata(esw);
if (err)
goto err_vport_metadata;
}
err = esw_set_passing_vport_metadata(esw, true);
if (err)
goto err_vport_metadata;
err = esw_offloads_load_all_reps(esw);
if (err)
@ -2156,8 +2134,7 @@ int esw_offloads_init(struct mlx5_eswitch *esw)
return 0;
err_reps:
if (mlx5_eswitch_vport_match_metadata_enabled(esw))
mlx5_eswitch_disable_passing_vport_metadata(esw);
esw_set_passing_vport_metadata(esw, false);
err_vport_metadata:
esw_offloads_steering_cleanup(esw);
return err;
@ -2187,8 +2164,7 @@ void esw_offloads_cleanup(struct mlx5_eswitch *esw)
mlx5_rdma_disable_roce(esw->dev);
esw_offloads_devcom_cleanup(esw);
esw_offloads_unload_all_reps(esw);
if (mlx5_eswitch_vport_match_metadata_enabled(esw))
mlx5_eswitch_disable_passing_vport_metadata(esw);
esw_set_passing_vport_metadata(esw, false);
esw_offloads_steering_cleanup(esw);
esw->offloads.encap = DEVLINK_ESWITCH_ENCAP_MODE_NONE;
}