kernel/include/uapi/rdma/mlx4-abi.h, branch linux-rolling-stable

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

2018-04-23T15:10:33Z

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

RDMA: Change all uapi headers to use __aligned_u64 instead of __u64

2018-03-27T20:25:09Z

The new auditing standard for the subsystem will be to only use __aligned_64 in uapi headers to try and prevent 32/64 compat bugs from existing in the future. Changing all existing usage will help ensure new developers copy the right idea. The before/after of this patch was tested using pahole on 32 and 64 bit compiles to confirm it has no change in the structure layout, so this patch is a NOP. Signed-off-by: Jason Gunthorpe

RDMA/mlx4: Fix uABI structure layouts for 32/64 compat

2018-03-27T20:25:09Z

rss_caps in struct mlx4_uverbs_ex_query_device_resp is misaligned on 32 bit compared to 64 bit, add explicit padding. The rss caps were introduced recently and are very rarely used in user space, mainly for DPDK. We don't expect there to be a real 32 bit user, so this change is done without compat considerations. Fixes: 09d208b258a2 ("IB/mlx4: Add report for RSS capabilities by vendor channel") Signed-off-by: Jason Gunthorpe

IB/mlx4: Report TSO capabilities

2018-03-15T21:58:05Z

Report to the user area the TSO device capabilities, it includes the max_tso size and the QP types that support it. The TSO is applicable only when when of the ports is ETH and the device supports it. uresp logic around rss_caps is updated to fix a till-now harmless bug computing the length of the structure to copy. The code did not handle the implicit padding before rss_caps correctly. This is necessay to copy tss_caps successfully. Reviewed-by: Mark Bloch Signed-off-by: Yishai Hadas Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

RDMA/mlx4: Move flag constants to uapi header

2018-03-15T21:58:03Z

MLX4_USER_DEV_CAP_LARGE_CQE (via mlx4_ib_alloc_ucontext_resp.dev_caps) and MLX4_IB_QUERY_DEV_RESP_MASK_CORE_CLOCK_OFFSET (via mlx4_uverbs_ex_query_device_resp.comp_mask) are copied directly to userspace and form part of the uAPI. Move them to the uapi header where they belong. Signed-off-by: Jason Gunthorpe

IB/mlx4: Move mlx4_uverbs_ex_query_device_resp to include/uapi/

2018-03-07T23:10:07Z

This struct is involved in the user API for mlx4 and should not be hidden inside a driver header file. Fixes: 09d208b258a2 ("IB/mlx4: Add report for RSS capabilities by vendor channel") Reviewed-by: Mark Bloch Signed-off-by: Yishai Hadas Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

IB/mlx4: Add support to RSS hash for inner headers

2017-12-28T18:33:14Z

Support RSS hash for inner headers according to a new flag, MLX4_IB_RX_HASH_INNER provided by the vendor channel. In case the flag is set, RSS hash will be done on the inner headers of VXLAN packets (which are encapsulated). Non-encapsulated packets will be hashed according to the outer headers. Signed-off-by: Guy Levi Reviewed-by: Yishai Hadas Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

License cleanup: add SPDX license identifier to uapi header files with a license

2017-11-02T10:20:11Z

Many user space API headers have licensing information, which is either incomplete, badly formatted or just a shorthand for referring to the license under which the file is supposed to be. This makes it hard for compliance tools to determine the correct license. Update these files with an SPDX license identifier. The identifier was chosen based on the license information in the file. GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license identifier with the added 'WITH Linux-syscall-note' exception, which is the officially assigned exception identifier for the kernel syscall exception: NOTE! This copyright does *not* cover user programs that use kernel services by normal system calls - this is merely considered normal use of the kernel, and does *not* fall under the heading of "derived work". This exception makes it possible to include GPL headers into non GPL code, without confusing license compliance tools. Headers which have either explicit dual licensing or are just licensed under a non GPL license are updated with the corresponding SPDX identifier and the GPLv2 with syscall exception identifier. The format is: ((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE) SPDX license identifiers are a legally binding shorthand, which can be used instead of the full boiler plate text. The update does not remove existing license information as this has to be done on a case by case basis and the copyright holders might have to be consulted. This will happen in a separate step. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. See the previous patch in this series for the methodology of how this patch was researched. Reviewed-by: Kate Stewart Reviewed-by: Philippe Ombredanne Reviewed-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

IB/mlx4: Remove redundant attribute in mlx4_ib_create_qp_rss struct

2017-08-24T20:27:11Z

rx_key_len is not in use and needs to be removed. Fixes: 3078f5f1bd8b ("IB/mlx4: Add support for RSS QP") Signed-off-by: Guy Levi Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford

IB/mlx4: Fix struct mlx4_ib_create_wq alignment

2017-08-24T20:27:11Z

The mlx4 ABI defines to have structures with alignment of 64B. Fixes: 400b1ebcfe31 ("IB/mlx4: Add support for WQ related verbs") Signed-off-by: Guy Levi Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford