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authorAriel Levkovich <lariel@mellanox.com>2019-05-05 17:07:14 +0300
committerJason Gunthorpe <jgg@mellanox.com>2019-05-06 18:51:51 +0300
commit33cde96fb5d7ae36207541c8a832d7fae3cadbde (patch)
tree893945fa0e36aef67304e8b5a350c5d21b0b9434 /drivers/infiniband
parent25c13324d03d004f9e8071bf5bf5d5c6fdace71e (diff)
downloadlinux-33cde96fb5d7ae36207541c8a832d7fae3cadbde.tar.xz
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 <lariel@mellanox.com> Reviewed-by: Eli Cohen <eli@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/mlx5/devx.c4
1 files changed, 4 insertions, 0 deletions
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);