net/mlx5: Added required metadata capability for ipsec

Currently our device requires additional metadata in packet
to perform ipsec crypto offload.
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c

@@ -256,10 +256,12 @@ u32 mlx5_fpga_ipsec_device_caps(struct mlx5_core_dev *mdev)
 	struct mlx5_fpga_device *fdev = mdev->fpga;
 	u32 ret = 0;
 
-	if (mlx5_fpga_is_ipsec_device(mdev))
+	if (mlx5_fpga_is_ipsec_device(mdev)) {
 		ret |= MLX5_ACCEL_IPSEC_CAP_DEVICE;
-	else
+		ret |= MLX5_ACCEL_IPSEC_CAP_REQUIRED_METADATA;
+	} else {
 		return ret;
+	}
 
 	if (!fdev->ipsec)
 		return ret;

include/linux/mlx5/accel.h

@@ -38,6 +38,7 @@
 
 enum mlx5_accel_ipsec_caps {
 	MLX5_ACCEL_IPSEC_CAP_DEVICE		= 1 << 0,
+	MLX5_ACCEL_IPSEC_CAP_REQUIRED_METADATA	= 1 << 1,
 	MLX5_ACCEL_IPSEC_CAP_ESP		= 1 << 2,
 	MLX5_ACCEL_IPSEC_CAP_IPV6		= 1 << 3,
 	MLX5_ACCEL_IPSEC_CAP_LSO		= 1 << 4,