This patch set exposes CQ moderation. This will allow to moderate number of CQEs needed to create an event. Such change brings performance improvement by reducing pressure on application to receive event per-CQE. The proposed semantics follows the well-established kernel semantics. * cq_max_count - defines the number of cookies needed to create an event. * cq_period - defines the timeout between last event and a new one that will occur even if cq_max_count was not reached The patches are available in the git repository at: git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git tags/rdma-next-2017-10-19-2 Thanks --------------------------------------- Yonatan Cohen (6): IB/uverbs: Allow CQ moderation with modify CQ IB/mlx4: Exposing modify CQ callback to uverbs layer IB/mlx5: Exposing modify CQ callback to uverbs layer IB/uverbs: Add CQ moderation capability to query_device IB/mlx4: Add CQ moderation capability to query_device IB/mlx5: Add CQ moderation capability to query_device drivers/infiniband/core/uverbs.h | 1 + drivers/infiniband/core/uverbs_cmd.c | 45 +++++++++++++++++++++++++++++++++++ drivers/infiniband/core/uverbs_main.c | 1 + drivers/infiniband/hw/mlx4/main.c | 6 +++++ drivers/infiniband/hw/mlx4/mlx4_ib.h | 1 + drivers/infiniband/hw/mlx5/cq.c | 3 +++ drivers/infiniband/hw/mlx5/main.c | 10 +++++++- include/linux/mlx4/cq.h | 3 +++ include/linux/mlx5/cq.h | 3 +++ include/rdma/ib_verbs.h | 10 ++++++++ include/uapi/rdma/ib_user_verbs.h | 18 +++++++++++++- 11 files changed, 99 insertions(+), 2 deletions(-) -- 2.14.2 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
