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Commit 191ded4a authored Oct 31, 2016 by Bodong Wang Committed by Doug Ledford Dec 13, 2016

IB/mlx5: Report mlx5 multi packet WQE caps during query



The capabilities whether hardware support multi packet WQE or not is
exposed to user space through query_device by uhw.

Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>

parent c226dc22

drivers/infiniband/hw/mlx5/main.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -672,6 +672,17 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
		1 << MLX5_CAP_GEN(dev->mdev, log_max_rq);
		}

		if (field_avail(typeof(resp), mlx5_ib_support_multi_pkt_send_wqes,
		uhw->outlen)) {
		resp.mlx5_ib_support_multi_pkt_send_wqes =
		MLX5_CAP_ETH(mdev, multi_pkt_send_wqe);
		resp.response_length +=
		sizeof(resp.mlx5_ib_support_multi_pkt_send_wqes);
		}

		if (field_avail(typeof(resp), reserved, uhw->outlen))
		resp.response_length += sizeof(resp.reserved);

		if (uhw->outlen) {
		err = ib_copy_to_udata(uhw, &resp, resp.response_length);

include/uapi/rdma/mlx5-abi.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -129,6 +129,8 @@ struct mlx5_ib_query_device_resp {
		__u32 response_length;
		struct mlx5_ib_tso_caps tso_caps;
		struct mlx5_ib_rss_caps rss_caps;
		__u32 mlx5_ib_support_multi_pkt_send_wqes;
		__u32 reserved;
		};

		struct mlx5_ib_create_cq {