lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:   Wed,  8 Jan 2020 20:05:30 +0200
From:   Yishai Hadas <>
Subject: [PATCH rdma-next 00/10] Relaxed ordering memory regions 

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

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.


Jason Gunthorpe (3):
  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

 drivers/infiniband/core/rdma_core.c                |  21 +---
 drivers/infiniband/core/uverbs.h                   |   3 +
 drivers/infiniband/core/uverbs_cmd.c               | 133 ++++++++++++---------
 drivers/infiniband/core/uverbs_main.c              |  11 +-
 .../infiniband/core/uverbs_std_types_async_fd.c    |  21 +++-
 drivers/infiniband/core/uverbs_std_types_device.c  |  38 ++++++
 drivers/infiniband/hw/efa/efa_verbs.c              |   1 +
 drivers/infiniband/hw/mlx5/mlx5_ib.h               |   5 +-
 drivers/infiniband/hw/mlx5/mr.c                    |  19 ++-
 drivers/infiniband/hw/mlx5/odp.c                   |   2 +-
 drivers/infiniband/hw/mlx5/qp.c                    |   2 +-
 include/linux/mlx5/mlx5_ifc.h                      |   7 +-
 include/rdma/ib_verbs.h                            |   8 +-
 include/uapi/rdma/ib_user_ioctl_cmds.h             |  14 +++
 include/uapi/rdma/ib_user_ioctl_verbs.h            |  12 ++
 15 files changed, 209 insertions(+), 88 deletions(-)


Powered by blists - more mailing lists