From: Leon Romanovsky <leonro@xxxxxxxxxxxx> >From Yishai, ----------------------------------- This series enriches DEVX support in few aspects: it enables interoperability between DEVX and verbs and improves mechanism for controlling privileged DEVX commands. The first patch updates mlx5 ifc file. Next 3 patches enable modifying and querying verbs objects via the DEVX interface. To achieve that the core layer introduced the 'UVERBS_IDR_ANY_OBJECT' type to match any IDR object. Once it's used by some driver's method, the infrastructure skips checking for the IDR type and it becomes the driver handler responsibility. The DEVX methods of modify and query were changed to get any object type via the 'UVERBS_IDR_ANY_OBJECT' mechanism. The type checking is done per object as part of the driver code. The next 3 patches introduce more robust mechanism for controlling privileged DEVX commands. The responsibility to block/allow per command was moved to be done in the firmware based on the UID credentials that the driver reports upon user context creation. This enables more granularity per command based on the device security model and the user credentials. In addition, by introducing a valid range for 'general commands' we prevent the need to touch the driver's code any time that a new future command will be added. The last patch fixes the XRC verbs flow once a DEVX context is used. This is needed as XRCD is some shared kernel resource and as such a kernel UID (=0) should be used in its related resources. Thanks Yishai Hadas (7): net/mlx5: Update mlx5_ifc with DEVX UCTX capabilities bits IB/core: Introduce UVERBS_IDR_ANY_OBJECT IB/core: Enable getting an object type from a given uobject IB/mlx5: Enable modify and query verbs objects via DEVX IB/mlx5: Enforce DEVX privilege by firmware IB/mlx5: Update the supported DEVX commands IB/mlx5: Allow XRC usage via verbs in DEVX context drivers/infiniband/core/rdma_core.c | 27 +++-- drivers/infiniband/core/rdma_core.h | 21 ++-- drivers/infiniband/core/uverbs_uapi.c | 10 +- drivers/infiniband/hw/mlx5/devx.c | 142 ++++++++++++++++++++++---- drivers/infiniband/hw/mlx5/main.c | 4 +- drivers/infiniband/hw/mlx5/mlx5_ib.h | 6 +- drivers/infiniband/hw/mlx5/qp.c | 12 +-- drivers/infiniband/hw/mlx5/srq.c | 2 +- include/linux/mlx5/mlx5_ifc.h | 26 ++++- include/rdma/uverbs_ioctl.h | 6 ++ include/rdma/uverbs_std_types.h | 12 +++ 11 files changed, 215 insertions(+), 53 deletions(-) -- 2.19.1
