Re: [PATCH v3] vhost: introduce mdev based hardware backend

On Wed, Oct 30, 2019 at 09:55:57AM +0800, Jason Wang wrote: > On 2019/10/29 下午6:07, Tiwei Bie wrote: > > This patch introduces a mdev based hardware vhost backend. > > This backend is built on top of the same abstraction used > > in virtio-mdev and provides a generic vhost interface for > >

Re: [PATCH V5 4/6] mdev: introduce virtio device and its device ops

On 2019/10/29 下午3:42, Zhu Lingshan wrote: >> >> +    void (*set_status)(struct mdev_device *mdev, u8 status); > > Hi Jason > > Is it possible to make set_status() return an u8 or bool, because this > may fail in real hardware. Without a returned code, I am not sure  > whether it is a good idea to

Re: [RFC] vhost_mdev: add network control vq support

On 2019/10/29 下午6:17, Tiwei Bie wrote: > This patch adds the network control vq support in vhost-mdev. > A vhost-mdev specific op is introduced to allow parent drivers > to handle the network control commands come from userspace. Probably work for userspace driver but not kernel driver. > >

[RFC PATCH 0/2] virtio: allow per vq DMA domain

We used to have use a single parent for all DMA operations. This tends to complicate the mdev based hardware virtio datapath offloading which may not implement the control path over datapath like ctrl vq in the case of virtio-net. So this series tries to intorduce per DMA domain by allowing

[RFC PATCH 1/2] virtio: accept parent as a parameter when allocating virtqueue

Signed-off-by: Jason Wang --- drivers/virtio/virtio_ring.c | 22 +- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index bdc08244a648..51d83f4d7c32 100644 --- a/drivers/virtio/virtio_ring.c +++

[RFC PATCH 2/2] virtio: allow query vq parent device

Signed-off-by: Jason Wang --- drivers/virtio/virtio_ring.c | 16 ++-- include/linux/virtio_config.h | 2 ++ 2 files changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 51d83f4d7c32..ddeef7421d4d 100644 ---

Re: [PATCH v2] vhost: introduce mdev based hardware backend

On 2019/10/29 下午5:57, Tiwei Bie wrote: > On Mon, Oct 28, 2019 at 11:50:49AM +0800, Jason Wang wrote: >> On 2019/10/28 上午9:58, Tiwei Bie wrote: >>> On Fri, Oct 25, 2019 at 08:16:26AM -0400, Michael S. Tsirkin wrote: On Fri, Oct 25, 2019 at 05:54:55PM +0800, Jason Wang wrote: > On

Re: [PATCH v2] vhost: introduce mdev based hardware backend

On Mon, Oct 28, 2019 at 11:50:49AM +0800, Jason Wang wrote: > On 2019/10/28 上午9:58, Tiwei Bie wrote: > > On Fri, Oct 25, 2019 at 08:16:26AM -0400, Michael S. Tsirkin wrote: > > > On Fri, Oct 25, 2019 at 05:54:55PM +0800, Jason Wang wrote: > > > > On 2019/10/24 下午6:42, Jason Wang wrote: > > > > >

[PATCH v3] vhost: introduce mdev based hardware backend

This patch introduces a mdev based hardware vhost backend. This backend is built on top of the same abstraction used in virtio-mdev and provides a generic vhost interface for userspace to accelerate the virtio devices in guest. This backend is implemented as a mdev device driver on top of the

[RFC] vhost_mdev: add network control vq support

This patch adds the network control vq support in vhost-mdev. A vhost-mdev specific op is introduced to allow parent drivers to handle the network control commands come from userspace. Signed-off-by: Tiwei Bie --- This patch depends on below patch: https://lkml.org/lkml/2019/10/29/335

Re: [PATCH net-next 00/14] vsock: add multi-transports support

On Sun, Oct 27, 2019 at 09:01:46AM +0100, Stefan Hajnoczi wrote: > On Wed, Oct 23, 2019 at 11:55:40AM +0200, Stefano Garzarella wrote: > > This series adds the multi-transports support to vsock, following > > this proposal: https://www.spinics.net/lists/netdev/msg575792.html > > > > With the

Re: [PATCH net-next 12/14] vsock/vmci: register vmci_transport only when VMCI guest/host are active

On Sun, Oct 27, 2019 at 09:17:52AM +0100, Stefan Hajnoczi wrote: > On Wed, Oct 23, 2019 at 11:55:52AM +0200, Stefano Garzarella wrote: > > +static int __init vmci_transport_init(void) > > +{ > > + int features = VSOCK_TRANSPORT_F_DGRAM; > > Where is this variable used? It is introduced in the

Re: [PATCH v3] vhost: introduce mdev based hardware backend

On 2019/10/29 下午6:07, Tiwei Bie wrote: > This patch introduces a mdev based hardware vhost backend. > This backend is built on top of the same abstraction used > in virtio-mdev and provides a generic vhost interface for > userspace to accelerate the virtio devices in guest. > > This backend is

Re: [PATCH v9 10/11] x86/paravirt: Adapt assembly for PIE support

On Mon, Aug 12, 2019 at 5:54 AM Borislav Petkov wrote: > > On Wed, Jul 31, 2019 at 02:53:06PM +0200, Peter Zijlstra wrote: > > On Tue, Jul 30, 2019 at 12:12:54PM -0700, Thomas Garnier wrote: > > > if PIE is enabled, switch the paravirt assembly constraints to be > > > compatible. The %c/i

Re: [PATCH v2] vhost: introduce mdev based hardware backend

On Tue, Oct 29, 2019 at 06:48:27PM +0800, Jason Wang wrote: > On 2019/10/29 下午5:57, Tiwei Bie wrote: > > On Mon, Oct 28, 2019 at 11:50:49AM +0800, Jason Wang wrote: > >> On 2019/10/28 上午9:58, Tiwei Bie wrote: > >>> On Fri, Oct 25, 2019 at 08:16:26AM -0400, Michael S. Tsirkin wrote: > On Fri,