On 2019/9/27 下午9:23, Michael S. Tsirkin wrote:
On Fri, Sep 27, 2019 at 09:17:56PM +0800, Jason Wang wrote:
On 2019/9/27 下午8:46, Michael S. Tsirkin wrote:
On Fri, Sep 27, 2019 at 08:17:47PM +0800, Jason Wang wrote:
On 2019/9/27 下午5:41, Michael S. Tsirkin wrote:
On Fri, Sep 27, 2019 at
On Fri, Sep 27, 2019 at 09:17:56PM +0800, Jason Wang wrote:
>
> On 2019/9/27 下午8:46, Michael S. Tsirkin wrote:
> > On Fri, Sep 27, 2019 at 08:17:47PM +0800, Jason Wang wrote:
> > > On 2019/9/27 下午5:41, Michael S. Tsirkin wrote:
> > > > On Fri, Sep 27, 2019 at 11:27:12AM +0800, Jason Wang wrote:
>
On 2019/9/27 下午8:46, Michael S. Tsirkin wrote:
On Fri, Sep 27, 2019 at 08:17:47PM +0800, Jason Wang wrote:
On 2019/9/27 下午5:41, Michael S. Tsirkin wrote:
On Fri, Sep 27, 2019 at 11:27:12AM +0800, Jason Wang wrote:
On 2019/9/26 下午9:14, Tiwei Bie wrote:
On Thu, Sep 26, 2019 at 04:35:18AM
On Fri, Sep 27, 2019 at 08:17:47PM +0800, Jason Wang wrote:
>
> On 2019/9/27 下午5:41, Michael S. Tsirkin wrote:
> > On Fri, Sep 27, 2019 at 11:27:12AM +0800, Jason Wang wrote:
> > > On 2019/9/26 下午9:14, Tiwei Bie wrote:
> > > > On Thu, Sep 26, 2019 at 04:35:18AM -0400, Michael S. Tsirkin wrote:
>
On 2019/9/27 下午5:41, Michael S. Tsirkin wrote:
On Fri, Sep 27, 2019 at 11:27:12AM +0800, Jason Wang wrote:
On 2019/9/26 下午9:14, Tiwei Bie wrote:
On Thu, Sep 26, 2019 at 04:35:18AM -0400, Michael S. Tsirkin wrote:
On Thu, Sep 26, 2019 at 12:54:27PM +0800, Tiwei Bie wrote:
[...]
diff --git
On 2019/9/27 下午5:38, Michael S. Tsirkin wrote:
On Fri, Sep 27, 2019 at 04:47:43PM +0800, Jason Wang wrote:
On 2019/9/27 下午12:54, Tiwei Bie wrote:
On Fri, Sep 27, 2019 at 11:46:06AM +0800, Jason Wang wrote:
On 2019/9/26 下午12:54, Tiwei Bie wrote:
+
+static long vhost_mdev_start(struct
On Fri, Sep 27, 2019 at 11:27:12AM +0800, Jason Wang wrote:
>
> On 2019/9/26 下午9:14, Tiwei Bie wrote:
> > On Thu, Sep 26, 2019 at 04:35:18AM -0400, Michael S. Tsirkin wrote:
> > > On Thu, Sep 26, 2019 at 12:54:27PM +0800, Tiwei Bie wrote:
> > [...]
> > > > diff --git a/include/uapi/linux/vhost.h
On Fri, Sep 27, 2019 at 04:47:43PM +0800, Jason Wang wrote:
>
> On 2019/9/27 下午12:54, Tiwei Bie wrote:
> > On Fri, Sep 27, 2019 at 11:46:06AM +0800, Jason Wang wrote:
> > > On 2019/9/26 下午12:54, Tiwei Bie wrote:
> > > > +
> > > > +static long vhost_mdev_start(struct vhost_mdev *m)
> > > > +{
> >
On 2019/9/27 下午12:54, Tiwei Bie wrote:
On Fri, Sep 27, 2019 at 11:46:06AM +0800, Jason Wang wrote:
On 2019/9/26 下午12:54, Tiwei Bie wrote:
+
+static long vhost_mdev_start(struct vhost_mdev *m)
+{
+ struct mdev_device *mdev = m->mdev;
+ const struct virtio_mdev_device_ops *ops =
On 2019/9/27 下午4:04, Tiwei Bie wrote:
On Fri, Sep 27, 2019 at 03:14:42PM +0800, Jason Wang wrote:
On 2019/9/27 下午12:54, Tiwei Bie wrote:
+
+ /*
+* In vhost-mdev, userspace should pass ring addresses
+* in guest physical addresses when IOMMU is
On Fri, Sep 27, 2019 at 03:14:42PM +0800, Jason Wang wrote:
> On 2019/9/27 下午12:54, Tiwei Bie wrote:
> > > > +
> > > > + /*
> > > > +* In vhost-mdev, userspace should pass ring addresses
> > > > +* in guest physical addresses when IOMMU is disabled or
On 2019/9/27 下午12:54, Tiwei Bie wrote:
The name could be confusing, get_queue_max() is to get the maximum number of
entries for a virtqueue supported by this device.
OK. It might be better to rename it to something like:
get_vq_num_max()
which is more consistent with the
On 2019/9/27 下午12:54, Tiwei Bie wrote:
+
+ /*
+* In vhost-mdev, userspace should pass ring addresses
+* in guest physical addresses when IOMMU is disabled or
+* IOVAs when IOMMU is enabled.
+*/
A question here,
On Fri, Sep 27, 2019 at 11:46:06AM +0800, Jason Wang wrote:
> On 2019/9/26 下午12:54, Tiwei Bie wrote:
> > +
> > +static long vhost_mdev_start(struct vhost_mdev *m)
> > +{
> > + struct mdev_device *mdev = m->mdev;
> > + const struct virtio_mdev_device_ops *ops = mdev_get_dev_ops(mdev);
> > +
On Fri, Sep 27, 2019 at 11:51:35AM +0800, Jason Wang wrote:
> On 2019/9/27 上午11:46, Jason Wang wrote:
> > +
> > +static struct mdev_class_id id_table[] = {
> > + { MDEV_ID_VHOST },
> > + { 0 },
> > +};
> > +
> > +static struct mdev_driver vhost_mdev_driver = {
> > + .name =
On 2019/9/27 上午11:46, Jason Wang wrote:
+
+static struct mdev_class_id id_table[] = {
+ { MDEV_ID_VHOST },
+ { 0 },
+};
+
+static struct mdev_driver vhost_mdev_driver = {
+ .name = "vhost_mdev",
+ .probe = vhost_mdev_probe,
+ .remove = vhost_mdev_remove,
+ .id_table
On 2019/9/26 下午12:54, Tiwei Bie wrote:
This patch introduces a mdev based hardware vhost backend.
This backend is built on top of the same abstraction used
in virtio-mdev and provides a generic vhost interface for
userspace to accelerate the virtio devices in guest.
This backend is
On 2019/9/26 下午9:14, Tiwei Bie wrote:
On Thu, Sep 26, 2019 at 04:35:18AM -0400, Michael S. Tsirkin wrote:
On Thu, Sep 26, 2019 at 12:54:27PM +0800, Tiwei Bie wrote:
[...]
diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h
index 40d028eed645..5afbc2f08fa3 100644
---
Hi Tiwei,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on vhost/linux-next]
[cannot apply to v5.3 next-20190925]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify
On Thu, Sep 26, 2019 at 09:26:22AM -0400, Michael S. Tsirkin wrote:
> On Thu, Sep 26, 2019 at 09:14:39PM +0800, Tiwei Bie wrote:
> > > 4. Does device need to limit max ring size?
> > > 5. Does device need to limit max number of queues?
> >
> > I think so. It's helpful to have ioctls to report the
On Thu, Sep 26, 2019 at 09:14:39PM +0800, Tiwei Bie wrote:
> > 4. Does device need to limit max ring size?
> > 5. Does device need to limit max number of queues?
>
> I think so. It's helpful to have ioctls to report the max
> ring size and max number of queues.
Also, let's not repeat the vhost
On Thu, Sep 26, 2019 at 04:35:18AM -0400, Michael S. Tsirkin wrote:
> On Thu, Sep 26, 2019 at 12:54:27PM +0800, Tiwei Bie wrote:
[...]
> > diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h
> > index 40d028eed645..5afbc2f08fa3 100644
> > --- a/include/uapi/linux/vhost.h
> > +++
On Thu, Sep 26, 2019 at 12:54:27PM +0800, Tiwei Bie wrote:
> This patch introduces a mdev based hardware vhost backend.
> This backend is built on top of the same abstraction used
> in virtio-mdev and provides a generic vhost interface for
> userspace to accelerate the virtio devices in guest.
>
This patch introduces a mdev based hardware vhost backend.
This backend is built on top of the same abstraction used
in virtio-mdev and provides a generic vhost interface for
userspace to accelerate the virtio devices in guest.
This backend is implemented as a mdev device driver on top
of the
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