On Wed, Feb 19, 2020 at 09:11:02AM -0400, Jason Gunthorpe wrote:
> On Wed, Feb 19, 2020 at 10:52:38AM +0800, Tiwei Bie wrote:
> > > > +static int __init vhost_vdpa_init(void)
> > > > +{
> > > > + int r;
> > > > +
> > > > + idr_init(&vhost_vdpa.idr);
> > > > + mutex_init(&vhost_vdp
On Wed, Feb 19, 2020 at 10:52:38AM +0800, Tiwei Bie wrote:
> > > +static int __init vhost_vdpa_init(void)
> > > +{
> > > + int r;
> > > +
> > > + idr_init(&vhost_vdpa.idr);
> > > + mutex_init(&vhost_vdpa.mutex);
> > > + init_waitqueue_head(&vhost_vdpa.release_q);
> > > +
> > > + /* /dev/vhost-vdpa/
On Tue, Feb 18, 2020 at 09:53:59AM -0400, Jason Gunthorpe wrote:
> On Fri, Jan 31, 2020 at 11:36:51AM +0800, Tiwei Bie wrote:
>
> > +static int vhost_vdpa_alloc_minor(struct vhost_vdpa *v)
> > +{
> > + return idr_alloc(&vhost_vdpa.idr, v, 0, MINORMASK + 1,
> > +GFP_KERNEL);
>
On Fri, Jan 31, 2020 at 11:36:51AM +0800, Tiwei Bie wrote:
> +static int vhost_vdpa_alloc_minor(struct vhost_vdpa *v)
> +{
> + return idr_alloc(&vhost_vdpa.idr, v, 0, MINORMASK + 1,
> + GFP_KERNEL);
> +}
Please don't use idr in new code, use xarray directly
> +static int
On 2020/2/5 下午9:14, Michael S. Tsirkin wrote:
On Wed, Feb 05, 2020 at 08:56:48AM -0400, Jason Gunthorpe wrote:
On Wed, Feb 05, 2020 at 03:50:14PM +0800, Jason Wang wrote:
Would it be better for the map/umnap logic to happen inside each device ?
Devices that needs the IOMMU will call iommu APIs
On 2020/2/5 下午6:33, Michael S. Tsirkin wrote:
On Wed, Feb 05, 2020 at 09:30:14AM +, Shahaf Shuler wrote:
Wednesday, February 5, 2020 9:50 AM, Jason Wang:
Subject: Re: [PATCH] vhost: introduce vDPA based backend
On 2020/2/5 下午3:15, Shahaf Shuler wrote:
Wednesday, February 5, 2020 4:03 AM
On 2020/2/5 下午5:23, Michael S. Tsirkin wrote:
On Wed, Feb 05, 2020 at 03:50:14PM +0800, Jason Wang wrote:
On 2020/2/5 下åˆ3:15, Shahaf Shuler wrote:
Wednesday, February 5, 2020 4:03 AM, Tiwei Bie:
Subject: Re: [PATCH] vhost: introduce vDPA based backend
On Tue, Feb 04, 2020 at 11:30:11AM
On 2020/2/5 下午5:30, Shahaf Shuler wrote:
Wednesday, February 5, 2020 9:50 AM, Jason Wang:
Subject: Re: [PATCH] vhost: introduce vDPA based backend
On 2020/2/5 下午3:15, Shahaf Shuler wrote:
Wednesday, February 5, 2020 4:03 AM, Tiwei Bie:
Subject: Re: [PATCH] vhost: introduce vDPA based backend
On Wed, Feb 05, 2020 at 08:56:48AM -0400, Jason Gunthorpe wrote:
> On Wed, Feb 05, 2020 at 03:50:14PM +0800, Jason Wang wrote:
> > > Would it be better for the map/umnap logic to happen inside each device ?
> > > Devices that needs the IOMMU will call iommu APIs from inside the driver
> > > callba
On Wed, Feb 05, 2020 at 03:50:14PM +0800, Jason Wang wrote:
> > Would it be better for the map/umnap logic to happen inside each device ?
> > Devices that needs the IOMMU will call iommu APIs from inside the driver
> > callback.
>
> Technically, this can work. But if it can be done by vhost-vpda
On Wed, Feb 05, 2020 at 09:30:14AM +, Shahaf Shuler wrote:
> Wednesday, February 5, 2020 9:50 AM, Jason Wang:
> > Subject: Re: [PATCH] vhost: introduce vDPA based backend
> > On 2020/2/5 下午3:15, Shahaf Shuler wrote:
> > > Wednesday, February 5, 2020 4:03 AM, Tiwei
On Wed, Feb 05, 2020 at 03:50:14PM +0800, Jason Wang wrote:
>
> On 2020/2/5 下午3:15, Shahaf Shuler wrote:
> > Wednesday, February 5, 2020 4:03 AM, Tiwei Bie:
> > > Subject: Re: [PATCH] vhost: introduce vDPA based backend
> > >
> > > On Tue, Feb 04, 202
On Wed, Feb 05, 2020 at 03:42:18PM +0800, Jason Wang wrote:
>
> On 2020/2/5 下午3:16, Michael S. Tsirkin wrote:
> > On Wed, Feb 05, 2020 at 02:49:31PM +0800, Jason Wang wrote:
> > > On 2020/2/5 下午2:30, Michael S. Tsirkin wrote:
> > > > On Wed, Feb 05, 2020 at 01:50:28PM +0800, Jason Wang wrote:
> >
On 2020/2/5 下午3:15, Shahaf Shuler wrote:
Wednesday, February 5, 2020 4:03 AM, Tiwei Bie:
Subject: Re: [PATCH] vhost: introduce vDPA based backend
On Tue, Feb 04, 2020 at 11:30:11AM +0800, Jason Wang wrote:
On 2020/1/31 上午11:36, Tiwei Bie wrote:
This patch introduces a vDPA based vhost
On 2020/2/5 下午3:16, Michael S. Tsirkin wrote:
On Wed, Feb 05, 2020 at 02:49:31PM +0800, Jason Wang wrote:
On 2020/2/5 下午2:30, Michael S. Tsirkin wrote:
On Wed, Feb 05, 2020 at 01:50:28PM +0800, Jason Wang wrote:
On 2020/2/5 下午1:31, Michael S. Tsirkin wrote:
On Wed, Feb 05, 2020 at 11:12:21AM
On Wed, Feb 05, 2020 at 02:49:31PM +0800, Jason Wang wrote:
>
> On 2020/2/5 下午2:30, Michael S. Tsirkin wrote:
> > On Wed, Feb 05, 2020 at 01:50:28PM +0800, Jason Wang wrote:
> > > On 2020/2/5 下午1:31, Michael S. Tsirkin wrote:
> > > > On Wed, Feb 05, 2020 at 11:12:21AM +0800, Jason Wang wrote:
> >
On 2020/2/5 下午2:30, Michael S. Tsirkin wrote:
On Wed, Feb 05, 2020 at 01:50:28PM +0800, Jason Wang wrote:
On 2020/2/5 下午1:31, Michael S. Tsirkin wrote:
On Wed, Feb 05, 2020 at 11:12:21AM +0800, Jason Wang wrote:
On 2020/2/5 上午10:05, Tiwei Bie wrote:
On Tue, Feb 04, 2020 at 02:46:16PM +0800,
On Wed, Feb 05, 2020 at 01:50:28PM +0800, Jason Wang wrote:
>
> On 2020/2/5 下午1:31, Michael S. Tsirkin wrote:
> > On Wed, Feb 05, 2020 at 11:12:21AM +0800, Jason Wang wrote:
> > > On 2020/2/5 上午10:05, Tiwei Bie wrote:
> > > > On Tue, Feb 04, 2020 at 02:46:16PM +0800, Jason Wang wrote:
> > > > > On
On 2020/2/5 下午1:31, Michael S. Tsirkin wrote:
On Wed, Feb 05, 2020 at 11:12:21AM +0800, Jason Wang wrote:
On 2020/2/5 上午10:05, Tiwei Bie wrote:
On Tue, Feb 04, 2020 at 02:46:16PM +0800, Jason Wang wrote:
On 2020/2/4 下午2:01, Michael S. Tsirkin wrote:
On Tue, Feb 04, 2020 at 11:30:11AM +0800,
On Wed, Feb 05, 2020 at 11:12:21AM +0800, Jason Wang wrote:
>
> On 2020/2/5 上午10:05, Tiwei Bie wrote:
> > On Tue, Feb 04, 2020 at 02:46:16PM +0800, Jason Wang wrote:
> > > On 2020/2/4 下午2:01, Michael S. Tsirkin wrote:
> > > > On Tue, Feb 04, 2020 at 11:30:11AM +0800, Jason Wang wrote:
> > > > > 5)
On 2020/2/5 上午10:05, Tiwei Bie wrote:
On Tue, Feb 04, 2020 at 02:46:16PM +0800, Jason Wang wrote:
On 2020/2/4 下午2:01, Michael S. Tsirkin wrote:
On Tue, Feb 04, 2020 at 11:30:11AM +0800, Jason Wang wrote:
5) generate diffs of memory table and using IOMMU API to setup the dma
mapping in this me
On 2020/2/5 上午10:02, Tiwei Bie wrote:
Before trying to do this it looks to me we need the following during the
probe
1) if set_map() is not supported by the vDPA device probe the IOMMU that is
supported by the vDPA device
2) allocate IOMMU domain
And then:
3) pin pages through GUP and do prop
On Tue, Feb 04, 2020 at 02:46:16PM +0800, Jason Wang wrote:
> On 2020/2/4 下午2:01, Michael S. Tsirkin wrote:
> > On Tue, Feb 04, 2020 at 11:30:11AM +0800, Jason Wang wrote:
> > > 5) generate diffs of memory table and using IOMMU API to setup the dma
> > > mapping in this method
> > Frankly I think t
On Tue, Feb 04, 2020 at 11:30:11AM +0800, Jason Wang wrote:
> On 2020/1/31 上午11:36, Tiwei Bie wrote:
> > This patch introduces a vDPA based vhost backend. This
> > backend is built on top of the same interface defined
> > in virtio-vDPA and provides a generic vhost interface
> > for userspace to ac
On 2020/2/4 下午2:01, Michael S. Tsirkin wrote:
On Tue, Feb 04, 2020 at 11:30:11AM +0800, Jason Wang wrote:
5) generate diffs of memory table and using IOMMU API to setup the dma
mapping in this method
Frankly I think that's a bunch of work. Why not a MAP/UNMAP interface?
Sure, so that basica
On Tue, Feb 04, 2020 at 11:30:11AM +0800, Jason Wang wrote:
> 5) generate diffs of memory table and using IOMMU API to setup the dma
> mapping in this method
Frankly I think that's a bunch of work. Why not a MAP/UNMAP interface?
--
MST
___
Virtualizat
On 2020/1/31 上午11:36, Tiwei Bie wrote:
This patch introduces a vDPA based vhost backend. This
backend is built on top of the same interface defined
in virtio-vDPA and provides a generic vhost interface
for userspace to accelerate the virtio devices in guest.
This backend is implemented as a vDP
On Thu, Jan 30, 2020 at 09:12:57PM -0800, Randy Dunlap wrote:
> On 1/30/20 7:56 PM, Randy Dunlap wrote:
> > Hi,
> >
> > On 1/30/20 7:36 PM, Tiwei Bie wrote:
> >> diff --git a/drivers/vhost/Kconfig b/drivers/vhost/Kconfig
> >> index f21c45aa5e07..13e6a94d0243 100644
> >> --- a/drivers/vhost/Kconfig
On Thu, Jan 30, 2020 at 07:56:43PM -0800, Randy Dunlap wrote:
> Hi,
>
> On 1/30/20 7:36 PM, Tiwei Bie wrote:
> > diff --git a/drivers/vhost/Kconfig b/drivers/vhost/Kconfig
> > index f21c45aa5e07..13e6a94d0243 100644
> > --- a/drivers/vhost/Kconfig
> > +++ b/drivers/vhost/Kconfig
> > @@ -34,6 +34,1
On 1/30/20 7:56 PM, Randy Dunlap wrote:
> Hi,
>
> On 1/30/20 7:36 PM, Tiwei Bie wrote:
>> diff --git a/drivers/vhost/Kconfig b/drivers/vhost/Kconfig
>> index f21c45aa5e07..13e6a94d0243 100644
>> --- a/drivers/vhost/Kconfig
>> +++ b/drivers/vhost/Kconfig
>> @@ -34,6 +34,18 @@ config VHOST_VSOCK
>>
Hi,
On 1/30/20 7:36 PM, Tiwei Bie wrote:
> diff --git a/drivers/vhost/Kconfig b/drivers/vhost/Kconfig
> index f21c45aa5e07..13e6a94d0243 100644
> --- a/drivers/vhost/Kconfig
> +++ b/drivers/vhost/Kconfig
> @@ -34,6 +34,18 @@ config VHOST_VSOCK
> To compile this driver as a module, choose M h
This patch introduces a vDPA based vhost backend. This
backend is built on top of the same interface defined
in virtio-vDPA and provides a generic vhost interface
for userspace to accelerate the virtio devices in guest.
This backend is implemented as a vDPA device driver on
top of the same ops use
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