From 336529518e9724d4cecabc622e57bcdce02e7c61 Mon Sep 17 00:00:00 2001 From: Aharon Landau Date: Wed, 16 Jun 2021 10:57:39 +0300 Subject: RDMA/mlx5: Support real-time timestamp directly from the device Currently, if the user asks for a real-time timestamp, the device will return a free-running one, and the timestamp will be translated to real-time in the user-space. When the device supports only real-time timestamp and not free-running, the creation of the QP will fail even though the user needs supported the real-time one. To prevent this, we will return the real-time timestamp directly from the device. Link: https://lore.kernel.org/r/c6cfc8e6f038575c5c2de6505830f7e74e4de80d.1623829775.git.leonro@nvidia.com Signed-off-by: Aharon Landau Reviewed-by: Maor Gottlieb Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- include/uapi/rdma/mlx5-abi.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/uapi/rdma') diff --git a/include/uapi/rdma/mlx5-abi.h b/include/uapi/rdma/mlx5-abi.h index 27905a0268c9..82e3bc1eb57d 100644 --- a/include/uapi/rdma/mlx5-abi.h +++ b/include/uapi/rdma/mlx5-abi.h @@ -101,6 +101,7 @@ enum mlx5_ib_alloc_ucontext_resp_mask { MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_CORE_CLOCK_OFFSET = 1UL << 0, MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_DUMP_FILL_MKEY = 1UL << 1, MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_ECE = 1UL << 2, + MLX5_IB_ALLOC_UCONTEXT_RESP_MASK_REAL_TIME_TS = 1UL << 4, }; enum mlx5_user_cmds_supp_uhw { @@ -270,6 +271,7 @@ struct mlx5_ib_query_device_resp { enum mlx5_ib_create_cq_flags { MLX5_IB_CREATE_CQ_FLAGS_CQE_128B_PAD = 1 << 0, MLX5_IB_CREATE_CQ_FLAGS_UAR_PAGE_INDEX = 1 << 1, + MLX5_IB_CREATE_CQ_FLAGS_REAL_TIME_TS = 1 << 2, }; struct mlx5_ib_create_cq { -- cgit v1.2.3