From 33cde96fb5d7ae36207541c8a832d7fae3cadbde Mon Sep 17 00:00:00 2001 From: Ariel Levkovich Date: Sun, 5 May 2019 17:07:14 +0300 Subject: [PATCH] IB/mlx5: Device resource control for privileged DEVX user For DEVX users who have SYS_RAWIO capability, we set the internal device resources capability when creating the UCTX. This will allow the device to restrict the allocation of internal device resources such as SW ICM memory to privileged DEVX users only. Signed-off-by: Ariel Levkovich Reviewed-by: Eli Cohen Reviewed-by: Mark Bloch Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/mlx5/devx.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c index d627f44bc84d..169ffffcf5ed 100644 --- a/drivers/infiniband/hw/mlx5/devx.c +++ b/drivers/infiniband/hw/mlx5/devx.c @@ -85,6 +85,10 @@ int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user) if (is_user && capable(CAP_NET_RAW) && (MLX5_CAP_GEN(dev->mdev, uctx_cap) & MLX5_UCTX_CAP_RAW_TX)) cap |= MLX5_UCTX_CAP_RAW_TX; + if (is_user && capable(CAP_SYS_RAWIO) && + (MLX5_CAP_GEN(dev->mdev, uctx_cap) & + MLX5_UCTX_CAP_INTERNAL_DEV_RES)) + cap |= MLX5_UCTX_CAP_INTERNAL_DEV_RES; MLX5_SET(create_uctx_in, in, opcode, MLX5_CMD_OP_CREATE_UCTX); MLX5_SET(uctx, uctx, cap, cap);