[PATCH rdma-next v1 03/15] IB/mlx4: Check for egress flow steering

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From: Boris Pismenny <borisp@xxxxxxxxxxxx>

ConnectX3 doesn't support egress flow steering. Return an EOPNOTSUPP
error when such a flow is being created.

Signed-off-by: Boris Pismenny <borisp@xxxxxxxxxxxx>
Reviewed-by: Aviad Yehezkel <aviadye@xxxxxxxxxxxx>
Reviewed-by: Matan Barak <matanb@xxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
 drivers/infiniband/hw/mlx4/main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index d1be3231f4f0..8debde872725 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -1882,6 +1882,9 @@ static struct ib_flow *mlx4_ib_create_flow(struct ib_qp *qp,
 	if (flow_attr->port < 1 || flow_attr->port > qp->device->phys_port_cnt)
 		return ERR_PTR(-EINVAL);
 
+	if (flow_attr->flags & ~IB_FLOW_ATTR_FLAGS_DONT_TRAP)
+		return ERR_PTR(-EOPNOTSUPP);
+
 	if ((flow_attr->flags & IB_FLOW_ATTR_FLAGS_DONT_TRAP) &&
 	    (flow_attr->type != IB_FLOW_ATTR_NORMAL))
 		return ERR_PTR(-EOPNOTSUPP);
-- 
2.14.3

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