From: Or Gerlitz <ogerl...@mellanox.com>
This allows for upper levels in the driver, e.g the TC offload code to add
e-switch offloaded steering rules. The caller provides the rule spec for
matching, action, source and destination vports.
Signed-off-by: Or Gerlitz <ogerl...@mellanox.com>
Signed-off-by: Saeed Mahameed <sae...@mellanox.com>
---
drivers/net/ethernet/mellanox/mlx5/core/eswitch.h | 6 +++
.../ethernet/mellanox/mlx5/core/eswitch_offloads.c | 43 ++++++++++++++++++++++
2 files changed, 49 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index 035e536..c0b0560 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -222,6 +222,12 @@ int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
int vport,
struct ifla_vf_stats *vf_stats);
+struct mlx5_flow_spec;
+
+struct mlx5_flow_rule *
+mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,
+ struct mlx5_flow_spec *spec,
+ u32 action, u32 src_vport, u32 dst_vport);
struct mlx5_flow_rule *
mlx5_eswitch_create_vport_rx_rule(struct mlx5_eswitch *esw, int vport, u32
tirn);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 27122c0..a357e8e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -43,6 +43,49 @@ enum {
FDB_SLOW_PATH
};
+struct mlx5_flow_rule *
+mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,
+ struct mlx5_flow_spec *spec,
+ u32 action, u32 src_vport, u32 dst_vport)
+{
+ struct mlx5_flow_destination dest = { 0 };
+ struct mlx5_fc *counter = NULL;
+ struct mlx5_flow_rule *rule;
+ void *misc;
+
+ if (esw->mode != SRIOV_OFFLOADS)
+ return ERR_PTR(-EOPNOTSUPP);
+
+ if (action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
+ dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
+ dest.vport_num = dst_vport;
+ action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
+ } else if (action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
+ counter = mlx5_fc_create(esw->dev, true);
+ if (IS_ERR(counter))
+ return ERR_CAST(counter);
+ dest.type = MLX5_FLOW_DESTINATION_TYPE_COUNTER;
+ dest.counter = counter;
+ }
+
+ misc = MLX5_ADDR_OF(fte_match_param, spec->match_value,
misc_parameters);
+ MLX5_SET(fte_match_set_misc, misc, source_port, src_vport);
+
+ misc = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
misc_parameters);
+ MLX5_SET_TO_ONES(fte_match_set_misc, misc, source_port);
+
+ spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS |
+ MLX5_MATCH_MISC_PARAMETERS;
+
+ rule = mlx5_add_flow_rule((struct mlx5_flow_table *)esw->fdb_table.fdb,
+ spec, action, 0, &dest);
+
+ if (IS_ERR(rule))
+ mlx5_fc_destroy(esw->dev, counter);
+
+ return rule;
+}
+
static struct mlx5_flow_rule *
mlx5_eswitch_add_send_to_vport_rule(struct mlx5_eswitch *esw, int vport, u32
sqn)
{
--
2.8.0
