search for: irqfds

On Sun, Jul 12, 2020 at 10:49:21PM +0800, Zhu Lingshan wrote: > We used to detect assigned device via VFIO manipulated device > conters. This is less flexible consider VFIO is not the only > interface for assigned device. vDPA devices has dedicated > backed hardware as well. So this patch tries to detect > the assigned device via irqbypass manager. > > We will

On Sun, Jul 12, 2020 at 10:49:21PM +0800, Zhu Lingshan wrote: > We used to detect assigned device via VFIO manipulated device > conters. This is less flexible consider VFIO is not the only > interface for assigned device. vDPA devices has dedicated > backed hardware as well. So this patch tries to detect > the assigned device via irqbypass manager. > > We will

On Thu, 16 Jul 2020 19:23:45 +0800 Zhu Lingshan <lingshan.zhu at intel.com> wrote: > vDPA devices has dedicated backed hardware like > passthrough-ed devices. Then it is possible to setup irq > offloading to vCPU for vDPA devices. Thus this patch tries to > manipulated assigned device counters via irqbypass manager. > > We will increase/decrease the assigned device

Hi Shannon, >Type of backend bandwith(GBytes/sec) >virtio-net 0.66 >vhost-net 1.49 >vhost-net with irqfd 2.01 > >Test cmd: ./iperf -c 192.168.0.2 -P 1 -i 10 -p 5001 -f G -t 60 Impressive results ! Could you please detail your setup ? which platform are you using and which GbE controller ? As a reference, it would be good also to have

Hi Shannon, >Type of backend bandwith(GBytes/sec) >virtio-net 0.66 >vhost-net 1.49 >vhost-net with irqfd 2.01 > >Test cmd: ./iperf -c 192.168.0.2 -P 1 -i 10 -p 5001 -f G -t 60 Impressive results ! Could you please detail your setup ? which platform are you using and which GbE controller ? As a reference, it would be good also to have

On Sun, 12 Jul 2020 22:49:21 +0800 Zhu Lingshan <lingshan.zhu at intel.com> wrote: > We used to detect assigned device via VFIO manipulated device > conters. This is less flexible consider VFIO is not the only > interface for assigned device. vDPA devices has dedicated > backed hardware as well. So this patch tries to detect > the assigned device via irqbypass manager. >

On 10/27/2014 12:23 PM, Li Liu wrote: > > > On 2014/10/27 17:37, Peter Maydell wrote: >> On 25 October 2014 09:24, john.liuli <john.liuli at huawei.com> wrote: >>> To get the interrupt reason to support such VIRTIO_NET_F_STATUS >>> features I add a new register offset VIRTIO_MMIO_ISRMEM which >>> will help to establish a shared memory region

On 10/27/2014 12:23 PM, Li Liu wrote: > > > On 2014/10/27 17:37, Peter Maydell wrote: >> On 25 October 2014 09:24, john.liuli <john.liuli at huawei.com> wrote: >>> To get the interrupt reason to support such VIRTIO_NET_F_STATUS >>> features I add a new register offset VIRTIO_MMIO_ISRMEM which >>> will help to establish a shared memory region

On 2014/11/5 16:43, Eric Auger wrote: > On 10/27/2014 12:23 PM, Li Liu wrote: >> >> >> On 2014/10/27 17:37, Peter Maydell wrote: >>> On 25 October 2014 09:24, john.liuli <john.liuli at huawei.com> wrote: >>>> To get the interrupt reason to support such VIRTIO_NET_F_STATUS >>>> features I add a new register offset VIRTIO_MMIO_ISRMEM which

On 2014/11/5 16:43, Eric Auger wrote: > On 10/27/2014 12:23 PM, Li Liu wrote: >> >> >> On 2014/10/27 17:37, Peter Maydell wrote: >>> On 25 October 2014 09:24, john.liuli <john.liuli at huawei.com> wrote: >>>> To get the interrupt reason to support such VIRTIO_NET_F_STATUS >>>> features I add a new register offset VIRTIO_MMIO_ISRMEM which

On 2014/10/26 19:52, Michael S. Tsirkin wrote: > On Sat, Oct 25, 2014 at 04:24:52PM +0800, john.liuli wrote: >> From: Li Liu <john.liuli at huawei.com> >> >> This set of patches try to implemet irqfd support of vhost-net >> based on virtio-mmio. >> >> I had posted a mail to talking about the status of vhost-net >> on kvm-arm refer to

On 2014/10/26 19:52, Michael S. Tsirkin wrote: > On Sat, Oct 25, 2014 at 04:24:52PM +0800, john.liuli wrote: >> From: Li Liu <john.liuli at huawei.com> >> >> This set of patches try to implemet irqfd support of vhost-net >> based on virtio-mmio. >> >> I had posted a mail to talking about the status of vhost-net >> on kvm-arm refer to

On Sat, Oct 25, 2014 at 04:24:52PM +0800, john.liuli wrote: > From: Li Liu <john.liuli at huawei.com> > > This set of patches try to implemet irqfd support of vhost-net > based on virtio-mmio. > > I had posted a mail to talking about the status of vhost-net > on kvm-arm refer to http://www.spinics.net/lists/kvm-arm/msg10804.html. > Some dependent patches are

On 2014/11/6 9:59, Shannon Zhao wrote: > > > On 2014/11/5 16:43, Eric Auger wrote: >> On 10/27/2014 12:23 PM, Li Liu wrote: >>> >>> >>> On 2014/10/27 17:37, Peter Maydell wrote: >>>> On 25 October 2014 09:24, john.liuli <john.liuli at huawei.com> wrote: >>>>> To get the interrupt reason to support such VIRTIO_NET_F_STATUS

Hi R?my, On 2014/11/5 16:26, GAUGUEY R?my 228890 wrote: > Hi Shannon, > >> Type of backend bandwith(GBytes/sec) >> virtio-net 0.66 >> vhost-net 1.49 >> vhost-net with irqfd 2.01 >> >> Test cmd: ./iperf -c 192.168.0.2 -P 1 -i 10 -p 5001 -f G -t 60 > > Impressive results ! > Could you please detail your

On 25 October 2014 09:24, john.liuli <john.liuli at huawei.com> wrote: > To get the interrupt reason to support such VIRTIO_NET_F_STATUS > features I add a new register offset VIRTIO_MMIO_ISRMEM which > will help to establish a shared memory region between qemu and > virtio-mmio device. Then the interrupt reason can be accessed by > guest driver through this region. At the

On 25 October 2014 09:24, john.liuli <john.liuli at huawei.com> wrote: > To get the interrupt reason to support such VIRTIO_NET_F_STATUS > features I add a new register offset VIRTIO_MMIO_ISRMEM which > will help to establish a shared memory region between qemu and > virtio-mmio device. Then the interrupt reason can be accessed by > guest driver through this region. At the

On Mon, Oct 27, 2014 at 05:19:23PM +0800, Li Liu wrote: > > > On 2014/10/26 19:52, Michael S. Tsirkin wrote: > > On Sat, Oct 25, 2014 at 04:24:52PM +0800, john.liuli wrote: > >> From: Li Liu <john.liuli at huawei.com> > >> > >> This set of patches try to implemet irqfd support of vhost-net > >> based on virtio-mmio. > >> >

From: Li Liu <john.liuli at huawei.com> This set of patches try to implemet irqfd support of vhost-net based on virtio-mmio. I had posted a mail to talking about the status of vhost-net on kvm-arm refer to http://www.spinics.net/lists/kvm-arm/msg10804.html. Some dependent patches are listed in the mail too. Basically the vhost-net brings great performance improvements, almost 50%+.

From: Li Liu <john.liuli at huawei.com> This set of patches try to implemet irqfd support of vhost-net based on virtio-mmio. I had posted a mail to talking about the status of vhost-net on kvm-arm refer to http://www.spinics.net/lists/kvm-arm/msg10804.html. Some dependent patches are listed in the mail too. Basically the vhost-net brings great performance improvements, almost 50%+.