lkml.org 
[lkml]   [2022]   [Dec]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] vdpa_sim: use weak barriers
On Wed, Dec 21, 2022 at 7:21 AM Jason Wang <jasowang@redhat.com> wrote:
>
> vDPA simulators are software emulated device, so let's switch to use
> weak barriers to avoid extra overhead in the driver.
>
> Signed-off-by: Jason Wang <jasowang@redhat.com>

Acked-by: Eugenio Pérez <eperezma@redhat.com>

Thanks!

> ---
> drivers/vdpa/vdpa_sim/vdpa_sim.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
> index b071f0d842fb..eeaeaf43b476 100644
> --- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
> +++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
> @@ -68,7 +68,7 @@ static void vdpasim_queue_ready(struct vdpasim *vdpasim, unsigned int idx)
> struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
>
> vringh_init_iotlb(&vq->vring, vdpasim->dev_attr.supported_features,
> - VDPASIM_QUEUE_MAX, false,
> + VDPASIM_QUEUE_MAX, true,
> (struct vring_desc *)(uintptr_t)vq->desc_addr,
> (struct vring_avail *)
> (uintptr_t)vq->driver_addr,
> --
> 2.25.1
>

\
 
 \ /
  Last update: 2023-03-26 23:18    [W:0.081 / U:0.228 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site