Messages in this thread | | | Date | Wed, 21 Dec 2022 10:17:32 +0100 | From | Stefano Garzarella <> | Subject | Re: [PATCH] vdpa_sim: use weak barriers |
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On Wed, Dec 21, 2022 at 02:21:46PM +0800, Jason Wang 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> >--- > drivers/vdpa/vdpa_sim/vdpa_sim.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-)
I was going to propose the same :-)
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
> >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 >
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