On Sun, Oct 27, 2019 at 8:29 AM Leon Romanovsky <leon@xxxxxxxxxx> wrote: > > From: Michael Guralnik <michaelgur@xxxxxxxxxxxx> > > Add a test in mlx5_ib initialization process to test whether > write-combining is supported on the machine. > The test will run as part of the enable_driver callback to ensure that > the test runs after the device is setup and can create and modify the > QP needed, but runs before the device is exposed to the users. > > The test opens UD QP and posts NOP WQEs, the WQE written to the BlueFlame > is differnet from the WQE in memory, requesting CQE only on the BlueFlame nit: different > WQE. By checking whether we received a completion on one of these WQEs we > can know if BlueFlame succeeded and whether write-combining is supported. > > Change reporting of BlueFlame support to be dependent on write-combining > support.
