On 2020/8/10 下午9:37, Michael S. Tsirkin wrote:
On Wed, Aug 05, 2020 at 10:16:16AM +0800, Jason Wang wrote:
On 2020/8/4 下午5:21, Michael S. Tsirkin wrote:
+struct vhost_vring_call {
+ struct eventfd_ctx *ctx;
+ struct irq_bypass_producer producer;
+ spinlock_t ctx_lock;
It's not cl
On Wed, Aug 05, 2020 at 10:16:16AM +0800, Jason Wang wrote:
>
> On 2020/8/4 下午5:21, Michael S. Tsirkin wrote:
> > > > > > +struct vhost_vring_call {
> > > > > > + struct eventfd_ctx *ctx;
> > > > > > + struct irq_bypass_producer producer;
> > > > > > + spinlock_t ctx_lock;
> > > > > It
On 2020/8/5 下午1:49, Zhu, Lingshan wrote:
On 8/5/2020 10:16 AM, Jason Wang wrote:
On 2020/8/4 下午5:21, Michael S. Tsirkin wrote:
+struct vhost_vring_call {
+ struct eventfd_ctx *ctx;
+ struct irq_bypass_producer producer;
+ spinlock_t ctx_lock;
It's not clear to me why we need ct
On 2020/8/4 下午5:21, Zhu, Lingshan wrote:
Hi Jason,
we use this lock to protect the eventfd_ctx and irq from race
conditions,
We don't support irq notification from vDPA device driver in this
version, do we still have race condition?
as we discussed before:
(1)if vendor change IRQ after DR
On 2020/8/4 下午5:21, Michael S. Tsirkin wrote:
+struct vhost_vring_call {
+ struct eventfd_ctx *ctx;
+ struct irq_bypass_producer producer;
+ spinlock_t ctx_lock;
It's not clear to me why we need ctx_lock here.
Thanks
Hi Jason,
we use this lock to protect the eventfd_ctx and irq f
On Tue, Aug 04, 2020 at 04:53:39PM +0800, Jason Wang wrote:
>
> On 2020/8/4 下午4:42, Zhu, Lingshan wrote:
> >
> >
> > On 8/4/2020 4:38 PM, Jason Wang wrote:
> > >
> > > On 2020/7/31 下午2:55, Zhu Lingshan wrote:
> > > > This commit introduces struct vhost_vring_call which replaced
> > > > raw stru
On 2020/8/4 下午4:42, Zhu, Lingshan wrote:
On 8/4/2020 4:38 PM, Jason Wang wrote:
On 2020/7/31 下午2:55, Zhu Lingshan wrote:
This commit introduces struct vhost_vring_call which replaced
raw struct eventfd_ctx *call_ctx in struct vhost_virtqueue.
Besides eventfd_ctx, it contains a spin lock and
On 2020/7/31 下午2:55, Zhu Lingshan wrote:
This commit introduces struct vhost_vring_call which replaced
raw struct eventfd_ctx *call_ctx in struct vhost_virtqueue.
Besides eventfd_ctx, it contains a spin lock and an
irq_bypass_producer in its structure.
Signed-off-by: Zhu Lingshan
Suggested-by:
