[dpdk-dev] [PATCH] raw/ioat: fix termination descriptor for batch

[David Marchand]

On Fri, Jul 16, 2021 at 4:28 PM Bruce Richardson
<bruce.richardson at intel.com> wrote:
>
> On Fri, Jul 16, 2021 at 02:50:27PM +0100, Konstantin Ananyev wrote:
> > When batch_size == 1, idxd has to add a dummy termination descriptor
> > to satisfy HW requirements.
> > Right now it uses NOP descriptor with FENCE flag.
> > This is excessive and fencing can slowdown things quite significantly.
> > The patch removes FENCE flag from termination dummy descriptor.
> > That helps to improve performance for no-burst scenarios.
> >
> > Fixes: 245efe544d8e ("raw/ioat: report status of completed jobs")
> >
> > Signed-off-by: Konstantin Ananyev <konstantin.ananyev at intel.com>
> Acked-by: Bruce Richardson <bruce.richardson at intel.com>

Applied, thanks.


-- 
David Marchand