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Commit 4ed088e6 authored by Matan Barak's avatar Matan Barak Committed by Doug Ledford
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IB/mlx4: Advertise RoCE v2 support 



Advertise RoCE v2 support in port_immutable attributes according to
the hardware's capabilities. This enables the verbs stack to use
RoCE v2 mode.

Signed-off-by: default avatarMatan Barak <matanb@mellanox.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent e1b866c6

drivers/infiniband/hw/mlx4/main.c

+9 −3
Original line number Diff line number Diff line
@@ -2185,6 +2185,7 @@ static int mlx4_port_immutable(struct ib_device *ibdev, u8 port_num, 
			       struct ib_port_immutable *immutable)

{

	struct ib_port_attr attr;

	struct mlx4_ib_dev *mdev = to_mdev(ibdev);

	int err;



	err = mlx4_ib_query_port(ibdev, port_num, &attr);
@@ -2194,10 +2195,15 @@ static int mlx4_port_immutable(struct ib_device *ibdev, u8 port_num, 
	immutable->pkey_tbl_len = attr.pkey_tbl_len;

	immutable->gid_tbl_len = attr.gid_tbl_len;



	if (mlx4_ib_port_link_layer(ibdev, port_num) == IB_LINK_LAYER_INFINIBAND)

	if (mlx4_ib_port_link_layer(ibdev, port_num) == IB_LINK_LAYER_INFINIBAND) {

		immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB;

	else

	} else {

		if (mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IBOE)

			immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE;

		if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ROCE_V1_V2)

			immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE |

				RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP;

	}



	immutable->max_mad_size = IB_MGMT_MAD_SIZE;