Re: [PATCH mlx5-next] IB/mlx5: Prevent allocating UMEM and UCTX as some general object

On Wed, Dec 19, 2018 at 04:28:15PM +0200, Leon Romanovsky wrote:

From: Yishai Hadas <redacted>

The driver needs to prevent a user space application to create a
UMEM and UCTX via the general object command.

The UMEM must go through the kernel UMEM_REG method to prevent the user
from setting physical addresses by himself.  The UCTX is some internal
kernel object and shouldn't be exposed.

As of not being any more part of the general object the caps bits were
moved to be some log_xxx indication in the general HCA caps, 0 means not
supported.

The firmware code was adapted as well to match the above.

Signed-off-by: Yishai Hadas <redacted>
Reviewed-by: Achiad Shochat <redacted>
Signed-off-by: Leon Romanovsky <redacted>
---
 drivers/infiniband/hw/mlx5/devx.c | 34 ++++++++---------
 drivers/infiniband/hw/mlx5/main.c |  3 +-
 include/linux/mlx5/mlx5_ifc.h     | 62 +++++++++++++++++++++----------
 3 files changed, 58 insertions(+), 41 deletions(-)

Applied to for-next

Thanks,
Jason