delta/linux.git/include/uapi/rdma, branch proc-cmdline

uapi: Fix SPDX tags for files referring to the 'OpenIB.org' license

2018-04-23T15:10:33+00:00

Based on discussion with Kate Stewart this license is not a
BSD-2-Clause, but is now formally identified as Linux-OpenIB
by SPDX.

The key difference between the licenses is in the 'warranty'
paragraph.

if_infiniband.h refers to the 'OpenIB.org' license, but
does not include the text, instead it links to an obsolete
web site that contains a license that matches the BSD-2-Clause
SPX. There is no 'three clause' version of the OpenIB.org
license.

Signed-off-by: Jason Gunthorpe 
Acked-by: David S. Miller 
Signed-off-by: Doug Ledford

IB/mlx5: Device memory support in mlx5_ib

2018-04-05T19:04:49+00:00

This patch adds the mlx5_ib driver implementation for the device
memory allocation API.
It implements the ib_device callbacks for allocation and deallocation
operations as well as a new mmap command support which allows mapping
an allocated device memory to a VMA.

The change also adds reporting of device memory maximum size and
alignment parameters reported in device capabilities.

The allocation/deallocation operations are using new firmware
commands to allocate MEMIC memory on the device.

Signed-off-by: Ariel Levkovich 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

IB/uverbs: Add device memory registration ioctl support

2018-04-05T17:16:39+00:00

Adding new ioctl method for the MR object - REG_DM_MR.

This command can be used by users to register an allocated
device memory buffer as an MR and receive lkey and rkey
to be used within work requests.

It is added as a new method under the MR object and using a new
ib_device callback - reg_dm_mr.
The command creates a standard ib_mr object which represents the
registered memory.

Signed-off-by: Ariel Levkovich 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

IB/uverbs: Add alloc/free dm uverbs ioctl support

2018-04-05T17:16:39+00:00

This change adds uverbs support for allocation/freeing
of device memory commands.

A new uverbs object is defined of type idr to represent
and track the new resource type allocation per context.

The API requires provider driver to implement 2 new ib_device
callbacks - one for allocation and one for deallocation which
return and accept (respectively) the ib_dm object which represents
the allocated memory on the device.

The support is added via the ioctl command infrastructure
only.

Signed-off-by: Ariel Levkovich 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

IB/uverbs: Expose device memory capabilities to user

2018-04-05T17:16:39+00:00

Adding a new capability field under ib_uverbs_ex_query_device_resp -
max_dm_size - which reflects the maximum amount of device memory
that is available for allocation on a device in bytes.

Signed-off-by: Ariel Levkovich 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

IB/mlx5: Add ability to hash by IPSEC_SPI when creating a TIR

2018-04-04T18:06:28+00:00

When a Raw Ethernet QP is created, we actually create a few objects.
One of these objects is a TIR. Currently, a TIR could hash (and spread
the traffic) by IP or port only. Adding a hashing by IPSec SPI to TIR
creation with the required UAPI bit.

Signed-off-by: Matan Barak 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

IB/mlx5: Add information for querying IPsec capabilities

2018-04-04T18:06:28+00:00

Users should be able to query for IPSec support. Adding a few
capabilities bits as part of the driver specific part in
alloc_ucontext:
MLX5_USER_ALLOC_UCONTEXT_FLOW_ACTION_FLAGS_ESP_AES_GCM_REQ_METADATA
	Payload's header is returned with metadata representing the
	IPSec decryption state.
MLX5_USER_ALLOC_UCONTEXT_FLOW_ACTION_FLAGS_ESP_AES_GCM_RX
	Support ESP_AES_GCM in ingress path.
MLX5_USER_ALLOC_UCONTEXT_FLOW_ACTION_FLAGS_ESP_AES_GCM_TX
	Support ESP_AES_GCM in egress path.
MLX5_USER_ALLOC_UCONTEXT_FLOW_ACTION_FLAGS_ESP_AES_GCM_SPI_RSS_ONLY
	Hardware doesn't support matching SPI in flow steering rules
	but just hashing and spreading the traffic accordingly.

Signed-off-by: Aviad Yehezkel 
Signed-off-by: Matan Barak 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

IB/mlx5: Add implementation for create and destroy action_xfrm

2018-04-04T18:06:26+00:00

Adding implementation in mlx5 driver to create and destroy action_xfrm
object. This merely call the accel layer.

A user may pass MLX5_IB_XFRM_FLAGS_REQUIRE_METADATA flag which states
that [s]he expects a metadata header to be added to the payload. This
header represents information regarding the transformation's state.

Reviewed-by: Yishai Hadas 
Signed-off-by: Matan Barak 
Signed-off-by: Aviad Yehezkel 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

IB/uverbs: Introduce ESP steering match filter

2018-04-04T18:06:26+00:00

Adding a new ESP steering match filter that could match against
spi and seq used in IPSec protocol.

Reviewed-by: Yishai Hadas 
Signed-off-by: Matan Barak 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe

IB/uverbs: Add modify ESP flow_action

2018-04-04T18:06:26+00:00

flow_actions of ESP type could be modified during runtime. This could be
common for example when ESN should be changed. Adding a new
UVERBS_FLOW_ACTION_ESP_MODIFY method for changing ESP parameters of an
existing ESP flow_action.
The new method uses the UVERBS_FLOW_ACTION_ESP_CREATE attributes, but
adds a new IB_FLOW_ACTION_ESP_FLAGS_MOD_ESP_ATTRS which means ESP_ATTRS
should be changed.
In addition, we add a new FLOW_ACTION_ESP_REPLAY_NONE replay type that
could be used when one wants to disable a replay protection over a
specific flow_action.

Reviewed-by: Yishai Hadas 
Signed-off-by: Matan Barak 
Signed-off-by: Leon Romanovsky 
Signed-off-by: Jason Gunthorpe