kernel/include/rdma/uverbs_ioctl.h, branch linux-5.2.y

IB/verbs: Add helper function rdma_udata_to_drv_context

2019-02-15T18:17:25Z

Helper function to get driver's context out of ib_udata wrapped in uverbs_attr_bundle for user objects or NULL for kernel objects. Signed-off-by: Shamir Rabinovitch Signed-off-by: Jason Gunthorpe

IB/uverbs: Add ib_ucontext to uverbs_attr_bundle sent from ioctl and cmd flows

2019-02-15T18:16:21Z

Add ib_ucontext to the uverbs_attr_bundle sent down the iocl and cmd flows as soon as the flow has ib_uobject. In addition, remove rdma_get_ucontext helper function that is only used by ib_umem_get. Signed-off-by: Shamir Rabinovitch Signed-off-by: Jason Gunthorpe

IB/core: uverbs copy to struct or zero helper

2018-12-20T22:18:18Z

Add a helper to zero fill fields before copying data to UVERBS_ATTR_STRUCT. As UVERBS_ATTR_STRUCT can be used as an extensible struct, we want to make sure that if the user supplies us with a struct that has new fields that we are not aware of, we return them zeroed to the user. This helper should be used when using UVERBS_ATTR_STRUCT for an extendable data structure and there is a need to make sure that extended members of the struct, that the kernel doesn't handle, are returned zeroed to the user. This is needed due to the fact that UVERBS_ATTR_STRUCT allows non-zero values for members after 'last' member. Signed-off-by: Michael Guralnik Reviewed-by: Majd Dibbiny Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

IB/uverbs: Add helper to get array size from ptr attribute

2018-12-18T22:19:45Z

When the parser of an ioctl command has the knowledge that a ptr attribute in a bundle represents an array of structures, it is useful for it to know the number of elements in the array. This is done by dividing the attribute length with the element size. Signed-off-by: Moni Shoua Reviewed-by: Guy Levi Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

RDMA: Start use ib_device_ops

2018-12-12T14:40:16Z

Make all the required change to start use the ib_device_ops structure. Signed-off-by: Kamal Heib Signed-off-by: Jason Gunthorpe

RDMA/mlx5: Fail early if user tries to create flows on IB representors

2018-12-11T21:38:16Z

IB representors don't support creation of RAW ethernet QP flows. Disable them by reusing existing RDMA/core support macros. We do it for both creation and matcher because latter is not usable if no flow creation is available. Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe

IB/core: Introduce UVERBS_IDR_ANY_OBJECT

2018-12-04T18:46:41Z

Introduce the UVERBS_IDR_ANY_OBJECT type to match any IDR object. Once used, the infrastructure skips checking for the IDR type, it becomes the driver handler responsibility. This enables drivers to get in a given method an object from various of types. Signed-off-by: Yishai Hadas Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford

RDMA/uverbs: Use only attrs for the write() handler signature

2018-12-03T17:01:58Z

All of the old arguments can be derived from the uverbs_attr_bundle structure, so get rid of the redundant arguments. Most of the prior work has been removing users of the arguments to allow this to be a simple patch. Signed-off-by: Jason Gunthorpe Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford

RDMA/uverbs: Use uverbs_attr_bundle to pass ucore for write/write_ex

2018-12-03T16:57:41Z

This creates a consistent way to access the two core buffers across write and write_ex handlers. Remove the open coded ucore conversion in the write/ex compatibility handlers. Signed-off-by: Jason Gunthorpe Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford

RDMA/uverbs: Use uverbs_attr_bundle to pass udata for ioctl()

2018-11-26T23:48:07Z

Have the core code initialize the driver_udata if the method has a udata description. This is done using the same create_udata the handler was supposed to call. This makes ioctl consistent with the write and write_ex paths. Signed-off-by: Jason Gunthorpe Signed-off-by: Leon Romanovsky