Re: [PATCH RFC 4/5] vhost-vdpa: support IOTLB batching hints

2020-06-29 Thread Jason Wang
On 2020/6/29 下午11:49, Michael S. Tsirkin wrote: On Mon, Jun 29, 2020 at 05:26:03PM +0800, Jason Wang wrote: On 2020/6/28 下午5:58, Michael S. Tsirkin wrote: On Thu, Jun 18, 2020 at 01:56:25PM +0800, Jason Wang wrote: This patches extend the vhost IOTLB API to accept batch updating hints form

Re: [PATCH RFC 4/5] vhost-vdpa: support IOTLB batching hints

2020-06-29 Thread Michael S. Tsirkin
On Mon, Jun 29, 2020 at 05:26:03PM +0800, Jason Wang wrote: > > On 2020/6/28 下午5:58, Michael S. Tsirkin wrote: > > On Thu, Jun 18, 2020 at 01:56:25PM +0800, Jason Wang wrote: > > > This patches extend the vhost IOTLB API to accept batch updating hints > > > form userspace. When userspace wants

Re: [PATCH RFC 4/5] vhost-vdpa: support IOTLB batching hints

2020-06-29 Thread Jason Wang
On 2020/6/28 下午5:58, Michael S. Tsirkin wrote: On Thu, Jun 18, 2020 at 01:56:25PM +0800, Jason Wang wrote: This patches extend the vhost IOTLB API to accept batch updating hints form userspace. When userspace wants update the device IOTLB in a batch, it may do: 1) Write vhost_iotlb_msg with

Re: [PATCH RFC 4/5] vhost-vdpa: support IOTLB batching hints

2020-06-28 Thread Michael S. Tsirkin
On Thu, Jun 18, 2020 at 01:56:25PM +0800, Jason Wang wrote: > This patches extend the vhost IOTLB API to accept batch updating hints > form userspace. When userspace wants update the device IOTLB in a > batch, it may do: > > 1) Write vhost_iotlb_msg with VHOST_IOTLB_BATCH_BEGIN flag > 2) Perform

[PATCH RFC 4/5] vhost-vdpa: support IOTLB batching hints

2020-06-17 Thread Jason Wang
This patches extend the vhost IOTLB API to accept batch updating hints form userspace. When userspace wants update the device IOTLB in a batch, it may do: 1) Write vhost_iotlb_msg with VHOST_IOTLB_BATCH_BEGIN flag 2) Perform a batch of IOTLB updating via VHOST_IOTLB_UPDATE/INVALIDATE 3) Write