Re: [PATCH V2 3/3] vhost_net: basic polling support

2016-01-20 Thread Yang Zhang
On 2016/1/21 13:13, Michael S. Tsirkin wrote: On Thu, Jan 21, 2016 at 10:11:35AM +0800, Yang Zhang wrote: On 2016/1/20 22:35, Michael S. Tsirkin wrote: On Tue, Dec 01, 2015 at 02:39:45PM +0800, Jason Wang wrote: This patch tries to poll for new added tx buffer or socket receive queue for a

Re: [PATCH V2 3/3] vhost_net: basic polling support

2016-01-20 Thread Yang Zhang
On 2016/1/20 22:35, Michael S. Tsirkin wrote: On Tue, Dec 01, 2015 at 02:39:45PM +0800, Jason Wang wrote: This patch tries to poll for new added tx buffer or socket receive queue for a while at the end of tx/rx processing. The maximum time spent on polling were specified through a new kind of vr

Re: [PATCH RFC] vhost: basic device IOTLB support

2016-01-04 Thread Yang Zhang
On 2016/1/4 14:22, Jason Wang wrote: On 01/04/2016 09:39 AM, Yang Zhang wrote: On 2015/12/31 15:13, Jason Wang wrote: This patch tries to implement an device IOTLB for vhost. This could be used with for co-operation with userspace(qemu) implementation of iommu for a secure DMA environment in

Re: [PATCH RFC] vhost: basic device IOTLB support

2016-01-03 Thread Yang Zhang
On 2015/12/31 15:13, Jason Wang wrote: This patch tries to implement an device IOTLB for vhost. This could be used with for co-operation with userspace(qemu) implementation of iommu for a secure DMA environment in guest. The idea is simple. When vhost meets an IOTLB miss, it will request the ass