{net,IB}/mlx5: Add has_tag to mlx5_flow_act
The has_tag member will indicate whether a tag action was specified
in flow specification.
A flow tag 0 = MLX5_FS_DEFAULT_FLOW_TAG is assumed a valid flow tag
that is currently used by mlx5 RDMA driver, whereas in HW flow_tag = 0
means that the user doesn't care about flow_tag. HW always provide
a flow_tag = 0 if all flow tags requested on a specific flow are 0.
So we need a way (in the driver) to differentiate between a user really
requesting flow_tag = 0 and a user who does not care, in order to be
able to report conflicting flow tags on a specific flow.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 1b30536..d50ace8 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -2535,6 +2535,7 @@ static int parse_flow_attr(struct mlx5_core_dev *mdev, u32 *match_c,
return -EINVAL;
action->flow_tag = ib_spec->flow_tag.tag_id;
+ action->has_flow_tag = true;
break;
case IB_FLOW_SPEC_ACTION_DROP:
if (FIELDS_NOT_SUPPORTED(ib_spec->drop,
@@ -2847,7 +2848,7 @@ static struct mlx5_ib_flow_handler *_create_flow_rule(struct mlx5_ib_dev *dev,
MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO;
}
- if (flow_act.flow_tag != MLX5_FS_DEFAULT_FLOW_TAG &&
+ if (flow_act.has_flow_tag &&
(flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT ||
flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT)) {
mlx5_ib_warn(dev, "Flow tag %u and attribute type %x isn't allowed in leftovers\n",