On Wed, Jan 08, 2020 at 08:05:30PM +0200, Yishai Hadas wrote: > This series adds an ioctl command to allocate an async event file followed by a > new ioctl command to get a device context. > > The get device context command enables reading some core generic capabilities > such as supporting an optional MR access flags by IB core and its related > drivers. > > Once the above is enabled, a new optional MR access flag named > IB_UVERBS_ACCESS_RELAXED_ORDERING is added and is used by mlx5 driver. > > This optional flag allows creation of relaxed ordering memory regions. Access > through such MRs can improve performance by allowing the system to reorder > certain accesses. > > As relaxed ordering is an optimization, drivers that do not support it can > simply ignore it. > > Note: This series relies on the 'Refactoring FD usage' series [1] that was sent > to rdma-next. > [1] https://patchwork.kernel.org/project/linux-rdma/list/?series=225541 > > Yishai > > Jason Gunthorpe (3): > RDMA/core: Add UVERBS_METHOD_ASYNC_EVENT_ALLOC > RDMA/core: Remove ucontext_lock from the uverbs_destry_ufile_hw() path > RDMA/uverbs: Add ioctl command to get a device context > > Michael Guralnik (7): > net/mlx5: Expose relaxed ordering bits > RDMA/uverbs: Verify MR access flags > RDMA/core: Add optional access flags range > RDMA/efa: Allow passing of optional access flags for MR registration > RDMA/uverbs: Add new relaxed ordering memory region access flag > RDMA/core: Add the core support field to METHOD_GET_CONTEXT > RDMA/mlx5: Set relaxed ordering when requested This looks OK, can you update the shared branch please Thanks, Jason
