linux-toradex.git/include/uapi/rdma, branch v5.7-rc6

Merge branch 'mlx5_tx_steering' into rdma.git for-next

2020-03-27T16:26:59+00:00

Leon Romanovsky says:

====================
Those two patches from Michael extends mlx5_core and mlx5_ib flow steering
to support RDMA TX in similar way to already supported RDMA RX.
====================

Based on the mlx5-next branch at
 git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Due to dependencies

* branch 'mlx5_tx_steering':
  RDMA/mlx5: Add support for RDMA TX flow table
  net/mlx5: Add support for RDMA TX steering

RDMA/mlx5: Add support for RDMA TX flow table

2020-03-27T16:24:48+00:00

Enable user application to add rules for RDMA TX steering table.
Rules in this steering table will allow to steer transmitted RDMA
traffic.

Link: https://lore.kernel.org/r/20200324061425.1570190-3-leon@kernel.org
Signed-off-by: Michael Guralnik 
Reviewed-by: Maor Gottlieb 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

IB/mlx5: Move to fully dynamic UAR mode once user space supports it

2020-03-27T15:59:05+00:00

Move to fully dynamic UAR mode once user space supports it.  In this case
we prevent any legacy mode of UARs on the allocated context and prevent
redundant allocation of the static ones.

Link: https://lore.kernel.org/r/20200324060143.1569116-6-leon@kernel.org
Signed-off-by: Yishai Hadas 
Reviewed-by: Michael Guralnik 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

IB/mlx5: Extend QP creation to get uar page index from user space

2020-03-27T15:59:04+00:00

Extend QP creation to get uar page index from user space, this mode can be
used with the UAR dynamic mode APIs to allocate/destroy a UAR object.

As part of enabling this option blocked the weird/un-supported cross
channel option which uses index 0 hard-coded.

This QP flag wasn't exposed to user space as part of any formal upstream
release, the dynamic option can allow having valid UAR page index instead.

Link: https://lore.kernel.org/r/20200324060143.1569116-4-leon@kernel.org
Signed-off-by: Yishai Hadas 
Reviewed-by: Michael Guralnik 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

IB/mlx5: Extend CQ creation to get uar page index from user space

2020-03-27T15:59:04+00:00

Extend CQ creation to get uar page index from user space, this mode can be
used with the UAR dynamic mode APIs to allocate/destroy a UAR object.

Link: https://lore.kernel.org/r/20200324060143.1569116-3-leon@kernel.org
Signed-off-by: Yishai Hadas 
Reviewed-by: Michael Guralnik 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

IB/mlx5: Expose UAR object and its alloc/destroy commands

2020-03-27T15:59:04+00:00

Expose UAR object and its alloc/destroy commands to be used over the ioctl
interface by user space applications.

This API supports both BF & NC modes and enables a dynamic allocation of
UARs once really needed.

As the number of driver objects were limited by the core ones when the
merged tree is prepared, had to decrease the number of core objects to
enable the new UAR object usage.

Link: https://lore.kernel.org/r/20200324060143.1569116-2-leon@kernel.org
Signed-off-by: Yishai Hadas 
Reviewed-by: Michael Guralnik 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

IB/mlx5: Introduce UAPIs to manage packet pacing

2020-03-10T14:53:52+00:00

Introduce packet pacing uobject and its alloc and destroy
methods.

This uobject holds mlx5 packet pacing context according to the device
specification and enables managing packet pacing device entries that are
needed by DEVX applications.

Link: https://lore.kernel.org/r/20200219190518.200912-3-leon@kernel.org
Signed-off-by: Yishai Hadas 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

RDMA/core: Add the core support field to METHOD_GET_CONTEXT

2020-01-16T19:55:46+00:00

Add the core support field to METHOD_GET_CONTEXT, this field should
represent capabilities that are not device-specific.

Return support for optional access flags for memory regions. User-space
will use this capability to mask the optional access flags for
unsupporting kernels.

Link: https://lore.kernel.org/r/1578506740-22188-10-git-send-email-yishaih@mellanox.com
Signed-off-by: Michael Guralnik 
Signed-off-by: Yishai Hadas 
Signed-off-by: Jason Gunthorpe

RDMA/uverbs: Add new relaxed ordering memory region access flag

2020-01-16T19:55:46+00:00

Add a new relaxed ordering access flag for memory regions.  Using memory
regions with relaxed ordeing set can enhance performance.

This access flag is handled in a best-effort manner, drivers should ignore
if they don't support setting relaxed ordering.

Link: https://lore.kernel.org/r/1578506740-22188-9-git-send-email-yishaih@mellanox.com
Signed-off-by: Michael Guralnik 
Signed-off-by: Yishai Hadas 
Signed-off-by: Jason Gunthorpe

RDMA/core: Add optional access flags range

2020-01-16T19:55:46+00:00

Define a range of access flags that are defined to be optional, both
uverbs and drivers should enable getting them and use if they are
applicable

This will be used, for example, for the relaxed ordering access flag which
unsupporting drivers can ignore.

Link: https://lore.kernel.org/r/1578506740-22188-7-git-send-email-yishaih@mellanox.com
Signed-off-by: Michael Guralnik 
Signed-off-by: Yishai Hadas 
Signed-off-by: Jason Gunthorpe