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On 2019/9/10 ??6:01, Michael S. Tsirkin wrote: >> +#ifndef _LINUX_VIRTIO_MDEV_H >> +#define _LINUX_VIRTIO_MDEV_H >> + >> +#include <linux/interrupt.h> >> +#include <linux/vringh.h> >> +#include <uapi/linux/virtio_net.h> >> + >> +/* >> + * Ioctls >> + */ > Pls add a bit more content here. It's redundant to state

On 2019/9/10 ??9:52, Michael S. Tsirkin wrote: > On Tue, Sep 10, 2019 at 09:13:02PM +0800, Jason Wang wrote: >> On 2019/9/10 ??6:01, Michael S. Tsirkin wrote: >>>> +#ifndef _LINUX_VIRTIO_MDEV_H >>>> +#define _LINUX_VIRTIO_MDEV_H >>>> + >>>> +#include <linux/interrupt.h> >>>> +#include <linux/vringh.h> >>>>

On Wed, Sep 11, 2019 at 10:38:39AM +0800, Jason Wang wrote: > > On 2019/9/10 ??9:52, Michael S. Tsirkin wrote: > > On Tue, Sep 10, 2019 at 09:13:02PM +0800, Jason Wang wrote: > > > On 2019/9/10 ??6:01, Michael S. Tsirkin wrote: > > > > > +#ifndef _LINUX_VIRTIO_MDEV_H > > > > > +#define _LINUX_VIRTIO_MDEV_H > > > > > + > >

On 2019/9/11 ??9:47, Tiwei Bie wrote: > On Tue, Sep 10, 2019 at 04:19:34PM +0800, Jason Wang wrote: >> This path introduces a new mdev transport for virtio. This is used to >> use kernel virtio driver to drive the mediated device that is capable >> of populating virtqueue directly. >> >> A new virtio-mdev driver will be registered to the mdev bus, when a >>

On Tue, Sep 10, 2019 at 09:13:02PM +0800, Jason Wang wrote: > > On 2019/9/10 ??6:01, Michael S. Tsirkin wrote: > > > +#ifndef _LINUX_VIRTIO_MDEV_H > > > +#define _LINUX_VIRTIO_MDEV_H > > > + > > > +#include <linux/interrupt.h> > > > +#include <linux/vringh.h> > > > +#include <uapi/linux/virtio_net.h> > > > +

On Tue, Sep 10, 2019 at 09:13:02PM +0800, Jason Wang wrote: > > On 2019/9/10 ??6:01, Michael S. Tsirkin wrote: > > > +#ifndef _LINUX_VIRTIO_MDEV_H > > > +#define _LINUX_VIRTIO_MDEV_H > > > + > > > +#include <linux/interrupt.h> > > > +#include <linux/vringh.h> > > > +#include <uapi/linux/virtio_net.h> > > > +

This path introduces a new mdev transport for virtio. This is used to use kernel virtio driver to drive the mediated device that is capable of populating virtqueue directly. A new virtio-mdev driver will be registered to the mdev bus, when a new virtio-mdev device is probed, it will register the device with mdev based config ops. This means, unlike the exist hardware transport, this is a software

On Tue, Sep 10, 2019 at 04:19:34PM +0800, Jason Wang wrote: > This path introduces a new mdev transport for virtio. This is used to > use kernel virtio driver to drive the mediated device that is capable > of populating virtqueue directly. > > A new virtio-mdev driver will be registered to the mdev bus, when a > new virtio-mdev device is probed, it will register the device with

On Tue, Sep 10, 2019 at 04:19:34PM +0800, Jason Wang wrote: > This path introduces a new mdev transport for virtio. This is used to > use kernel virtio driver to drive the mediated device that is capable > of populating virtqueue directly. > > A new virtio-mdev driver will be registered to the mdev bus, when a > new virtio-mdev device is probed, it will register the device with

On Tue, Sep 10, 2019 at 04:19:34PM +0800, Jason Wang wrote: > This path introduces a new mdev transport for virtio. This is used to > use kernel virtio driver to drive the mediated device that is capable > of populating virtqueue directly. > > A new virtio-mdev driver will be registered to the mdev bus, when a > new virtio-mdev device is probed, it will register the device with

On Tue, Sep 10, 2019 at 04:19:34PM +0800, Jason Wang wrote: > This path introduces a new mdev transport for virtio. This is used to > use kernel virtio driver to drive the mediated device that is capable > of populating virtqueue directly. > > A new virtio-mdev driver will be registered to the mdev bus, when a > new virtio-mdev device is probed, it will register the device with

...then it's not a part of UAPI any more - use GFP_ATOMIC in mvnet sample device and other tweaks - set_vring_base/get_vring_base support for mvnet device Jason Wang (6): mdev: class id support mdev: introduce device specific ops mdev: introduce virtio device and its device ops virtio: introudce a mdev based transport vringh: fix copy direction of vringh_iov_push_kern() docs: Sample driver to demonstrate how to implement virtio-mdev framework .../driver-api/vfio-mediated-device.rst | 11 +- drivers/gpu/drm/i915/gvt/kvmgt.c | 17 +- drivers/s390/cio/vfio_ccw_...

...ved from virtio-MMIO, I'm pretty sure it has lots of space to be optimized, please share your thought. Please review. [1] https://lkml.org/lkml/2019/8/28/35 Jason Wang (4): vringh: fix copy direction of vringh_iov_push_kern() mdev: introduce helper to set per device dma ops virtio: introudce a mdev based transport docs: Sample driver to demonstrate how to implement virtio-mdev framework drivers/vfio/mdev/Kconfig | 7 + drivers/vfio/mdev/Makefile | 1 + drivers/vfio/mdev/mdev_core.c | 7 + drivers/vfio/mdev/virtio_mdev.c | 500 ++++++++++++++++++++ driver...

Hi all: This is an updated version of kernel support for vDPA device. Various changes were made based on the feedback since last verion. One major change is to drop the sysfs API and leave the management interface for future development, and introudce the incremental DMA bus operations. Please see changelog for more information. The work on vhost, IFCVF (intel VF driver for vDPA) and qemu is ongoing. Please provide feedback. Thanks Change from V1: - drop sysfs API, leave the management interface to future development (Michael) - introduc...