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path: root/include/rdma/uverbs_named_ioctl.h
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2020-07-29RDMA/include: Replace license text with SPDX tagsLeon Romanovsky
The header files in RDMA subsystem are dual licensed and can be described by simple SPDX tag, so replace all of them at once together with making them use the same coding style for header guard defines. Link: https://lore.kernel.org/r/20200719072521.135260-1-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-01-30RDMA/core: Make the entire API tree staticJason Gunthorpe
Compilation of mlx5 driver without CONFIG_INFINIBAND_USER_ACCESS generates the following error. on x86_64: ld: drivers/infiniband/hw/mlx5/main.o: in function `mlx5_ib_handler_MLX5_IB_METHOD_VAR_OBJ_ALLOC': main.c:(.text+0x186d): undefined reference to `ib_uverbs_get_ucontext_file' ld: drivers/infiniband/hw/mlx5/main.o:(.rodata+0x2480): undefined reference to `uverbs_idr_class' ld: drivers/infiniband/hw/mlx5/main.o:(.rodata+0x24d8): undefined reference to `uverbs_destroy_def_handler' This is happening because some parts of the UAPI description are not static. This is a hold over from earlier code that relied on struct pointers to refer to object types, now object types are referenced by number. Remove the unused globals and add statics to the remaining UAPI description elements. Remove the redundent #ifdefs around mlx5_ib_*defs and obsolete mlx5_ib_get_devx_tree(). The compiler now trims alot more unused code, including the above problematic definitions when !CONFIG_INFINIBAND_USER_ACCESS. Fixes: 7be76bef320b ("IB/mlx5: Introduce VAR object and its alloc/destroy methods") Reported-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-12-06RDMA/uverbs: Fix typo in string concatenation macroLeon Romanovsky
Update UVERBS_OBJECT() macro to properly concatenate the object name. Fixes: e502a864c352 ("IB/core: Introduce DECLARE_UVERBS_GLOBAL_METHODS") Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-11-22RDMA/uverbs: Use a linear list to describe the compiled-in uapiJason Gunthorpe
The 'tree' data structure is very hard to build at compile time, and this makes it very limited. The new radix tree based compiler can handle a more complex input language that does not require the compiler to perfectly group everything into a neat tree structure. Instead use a simple list to describe to input, where the list elements can be of various different 'opcodes' instructing the radix compiler what to do. Start out with opcodes chaining to other definition lists and chaining to the existing 'tree' definition. Replace the very top level of the 'object tree' with this list type and get rid of struct uverbs_object_tree_def and DECLARE_UVERBS_OBJECT_TREE. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2018-07-24IB/mlx5: Introduce driver create and destroy flow methodsYishai Hadas
Introduce driver create and destroy flow methods on the uverbs flow object. This allows the driver to get its specific device attributes to match the underlay specification while still using the generic ib_flow object for cleanup and code sharing. The IB object's attributes are set via the ib_set_flow() helper function. The specific implementation for the given specification is added in downstream patches. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-07-04RDMA/uverbs: Get rid of the & in method specificationsJason Gunthorpe
Hide it inside the macros. The & is confusing and interferes with using this as a generic DSL in later patches. Since this also touches almost every line, also run the specs through clang-format (with 'BinPackParameters: false') to make the maintenance easier. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2018-07-04RDMA/uverbs: Simplify UVERBS_OBJECT and _TREE family of macrosJason Gunthorpe
Instead of the large set of indirecting macros, define the few needed macros to directly instantiate the struct uverbs_oject_tree_def and associated objects list. This is small amount of code duplication but the readability is far better. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2018-07-04RDMA/uverbs: Simplify method definition macrosJason Gunthorpe
Instead of the large set of indirecting macros, define the few needed macros to directly instantiate the struct uverbs_method_def and associated attributes list. This is small amount of code duplication but the readability is far better. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2018-06-19IB/core: Introduce DECLARE_UVERBS_GLOBAL_METHODSYishai Hadas
Introduce a new macro to be used for global methods on a singleton object. This macros sets internally the type_attrs to be NULL as such an object can't be created. Downstream patches from this series will use this macro. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-19IB/uverbs: Add macros to simplify adding driver specific attributesMatan Barak
Previously, adding driver specific attributes required drivers to declare all the hierarchy - object tree, object, methods and the attributes themselves. A common use case is adding a few attributes to an existing common method. In order to simplify the driver's code, we add some macros to do all these declarations automatically. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-03-19IB/uverbs: Move to new headers and make naming consistentMatan Barak
Use macros to make names consistent in ioctl() uAPI: The ioctl() uAPI works with object-method hierarchy. The method part also states which handler should be executed when this method is called from user-space. Therefore, we need to tie method, method's id, method's handler and the object owning this method together. Previously, this was done through explicit developer chosen names. This makes grepping the code harder. Changing the method's name, method's handler and object's name to be automatically generated based on the ids. The headers are split in a way so they be included and used by user-space. One header strictly contains structures that are used directly by user-space applications, where another header is used for internal library (i.e. libibverbs) to form the ioctl() commands. Other header simply contains the required general command structure. Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>