On Wed, Mar 06, 2019 at 07:21:42PM +0200, Leon Romanovsky wrote:
> From: Yishai Hadas <yishaih@xxxxxxxxxxxx>
>
> To prevent a hardware memory leak when a DEVX DCT object is destroyed
> without calling DRAIN DCT before, (e.g. under cleanup flow), need to
> manage its creation and destruction via mlx5 core.
>
> In that case the DRAIN DCT command will be called and only once that
> it will be completed the DESTROY DCT command will be called.
> Otherwise, the DESTROY DCT may fail and a hardware leak may occur.
>
> As of that change the DRAIN DCT command should not be exposed any more
> from DEVX, it's managed internally by the driver to work as expected by
> the device specification.
>
> Fixes: 7efce3691d33 ("IB/mlx5: Add obj create and destroy functionality")
> Signed-off-by: Yishai Hadas <yishaih@xxxxxxxxxxxx>
> Reviewed-by: Artemy Kovalyov <artemyko@xxxxxxxxxxxx>
> Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
> ---
> drivers/infiniband/hw/mlx5/devx.c | 34 +++++++++++++++-----
> drivers/infiniband/hw/mlx5/qp.c | 4 ++-
> drivers/net/ethernet/mellanox/mlx5/core/qp.c | 6 ++--
> include/linux/mlx5/qp.h | 3 +-
> 4 files changed, 34 insertions(+), 13 deletions(-)
Applied to for-rc
Thanks,
Jason
