On Tue, Mar 24, 2020 at 08:01:38AM +0200, Leon Romanovsky wrote: > From: Leon Romanovsky <leonro@xxxxxxxxxxxx> > > Changelog: > v1: * Added patch that moved mlx5_bfreg_info from global header to the mlx5_ib.h > * No other changes. > v0: * https://lore.kernel.org/linux-rdma/20200318124329.52111-1-leon@xxxxxxxxxx > > ---------------------------------------------------------------------------------- > > >From Yishai, > > This series exposes API to enable a dynamic allocation and management of a > UAR which now becomes to be a regular uobject. > > Moving to that mode enables allocating a UAR only upon demand and drop the > redundant static allocation of UARs upon context creation. > > In addition, it allows master and secondary processes that own the same command > FD to allocate and manage UARs according to their needs, this can’t be achieved > today. > > As part of this option, QP & CQ creation flows were adapted to support this > dynamic UAR mode once asked by user space. > > Once this mode is asked by mlx5 user space driver on a given context, it will > be mutual exclusive, means both the static and legacy dynamic modes for using > UARs will be blocked. > > The legacy modes are supported for backward compatible reasons, looking > forward we expect this new mode to be the default. > > Thanks > > Leon Romanovsky (1): > IB/mlx5: Limit the scope of struct mlx5_bfreg_info to mlx5_ib > > Yishai Hadas (4): > IB/mlx5: Expose UAR object and its alloc/destroy commands > IB/mlx5: Extend CQ creation to get uar page index from user space > IB/mlx5: Extend QP creation to get uar page index from user space > IB/mlx5: Move to fully dynamic UAR mode once user space supports it Applied to for-next, thanks Jason
