search for: mdev_supported_type

...eAPI>vfio-pci</deviceAPI> <availableInstances>4</availableInstances> </type> ... </capability> Besides device_api, available_instances and (optional) `name', `description' of the given mdev type may be optionally provided in /sys/.../mdev_supported_types/... for each of the available mdev types. I can see in the sources that libvirt doesn't try to retrieve it -- is it intentionally or is it just an omission? If the latter, could it be added, please? It looks like a useful piece of information for the user to get an idea what the given mdev t...

...ces>4</availableInstances> >> </type> >> ... >> </capability> >> >> Besides device_api, available_instances and (optional) `name', >> `description' of the given mdev type may be optionally provided in >> /sys/.../mdev_supported_types/... for each of the available mdev types. >> I can see in the sources that libvirt doesn't try to retrieve it -- is >> it intentionally or is it just an omission? If the latter, could it be >> added, please? It looks like a useful piece of information for the user >>...

...<availableInstances>4</availableInstances> > </type> > ... > </capability> > > Besides device_api, available_instances and (optional) `name', > `description' of the given mdev type may be optionally provided in > /sys/.../mdev_supported_types/... for each of the available mdev types. > I can see in the sources that libvirt doesn't try to retrieve it -- is > it intentionally or is it just an omission? If the latter, could it be > added, please? It looks like a useful piece of information for the user > to get an idea w...

...s; struct vdpa_vring_info vring_info[0]; }; struct vdpa_dev *vdpa_alloc(struct mdev_device *mdev, void *private, int max_vrings); void vdpa_free(struct vdpa_dev *vdpa); A simple example ================ # Query the number of available mdev instances $ cat /sys/class/mdev_bus/0000:06:00.2/mdev_supported_types/ifcvf_vdpa-vdpa_virtio/available_instances # Create a mdev instance $ echo $UUID > /sys/class/mdev_bus/0000:06:00.2/mdev_supported_types/ifcvf_vdpa-vdpa_virtio/create # Launch QEMU with a virtio-net device $ qemu \ ...... \ -netdev type=vhost-vfio,sysfsdev=/sys/bus/mdev/devices/$UUID,id=$ID...

...s; struct vdpa_vring_info vring_info[0]; }; struct vdpa_dev *vdpa_alloc(struct mdev_device *mdev, void *private, int max_vrings); void vdpa_free(struct vdpa_dev *vdpa); A simple example ================ # Query the number of available mdev instances $ cat /sys/class/mdev_bus/0000:06:00.2/mdev_supported_types/ifcvf_vdpa-vdpa_virtio/available_instances # Create a mdev instance $ echo $UUID > /sys/class/mdev_bus/0000:06:00.2/mdev_supported_types/ifcvf_vdpa-vdpa_virtio/create # Launch QEMU with a virtio-net device $ qemu \ ...... \ -netdev type=vhost-vfio,sysfsdev=/sys/bus/mdev/devices/$UUID,id=$ID...

On Fri, 11 Oct 2019 16:15:51 +0800 Jason Wang <jasowang at redhat.com> wrote: > Mdev bus only supports vfio driver right now, so it doesn't implement > match method. But in the future, we may add drivers other than vfio, > the first driver could be virtio-mdev. This means we need to add > device class id support in bus match method to pair the mdev device > and mdev

...mdev_device *mdev, void *private, > > int max_vrings); > > void vdpa_free(struct vdpa_dev *vdpa); > > > > A simple example > > ================ > > > > # Query the number of available mdev instances > > $ cat /sys/class/mdev_bus/0000:06:00.2/mdev_supported_types/ifcvf_vdpa-vdpa_virtio/available_instances > > > > # Create a mdev instance > > $ echo $UUID > /sys/class/mdev_bus/0000:06:00.2/mdev_supported_types/ifcvf_vdpa-vdpa_virtio/create > > > > # Launch QEMU with a virtio-net device > > $ qemu \ > > .........

...mdev_device *mdev, void *private, > > int max_vrings); > > void vdpa_free(struct vdpa_dev *vdpa); > > > > A simple example > > ================ > > > > # Query the number of available mdev instances > > $ cat /sys/class/mdev_bus/0000:06:00.2/mdev_supported_types/ifcvf_vdpa-vdpa_virtio/available_instances > > > > # Create a mdev instance > > $ echo $UUID > /sys/class/mdev_bus/0000:06:00.2/mdev_supported_types/ifcvf_vdpa-vdpa_virtio/create > > > > # Launch QEMU with a virtio-net device > > $ qemu \ > > .........

...t; > struct vdpa_dev *vdpa_alloc(struct mdev_device *mdev, void *private, > int max_vrings); > void vdpa_free(struct vdpa_dev *vdpa); > > A simple example > ================ > > # Query the number of available mdev instances > $ cat /sys/class/mdev_bus/0000:06:00.2/mdev_supported_types/ifcvf_vdpa-vdpa_virtio/available_instances > > # Create a mdev instance > $ echo $UUID > /sys/class/mdev_bus/0000:06:00.2/mdev_supported_types/ifcvf_vdpa-vdpa_virtio/create > > # Launch QEMU with a virtio-net device > $ qemu \ > ...... \ > -netdev type=vhost-vfio,sysfs...

...2019, Red Hat Inc. All rights reserved. + * Author: Jason Wang <jasowang at redhat.com> + * + * Sample driver that creates mdev device that simulates ethernet loopback + * device. + * + * Usage: + * + * # modprobe virtio_mdev + * # modprobe mvnet + * # cd /sys/devices/virtual/mvnet/mvnet/mdev_supported_types/mvnet-virtio + * # echo "83b8f4f2-509f-382f-3c1e-e6bfe0fa1001" > ./create + * # cd devices/83b8f4f2-509f-382f-3c1e-e6bfe0fa1001 + * # ls -d virtio0 + * virtio0 + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/k...

...2019, Red Hat Inc. All rights reserved. + * Author: Jason Wang <jasowang at redhat.com> + * + * Sample driver that creates mdev device that simulates ethernet loopback + * device. + * + * Usage: + * + * # modprobe virtio_mdev + * # modprobe mvnet + * # cd /sys/devices/virtual/mvnet/mvnet/mdev_supported_types/mvnet-virtio + * # echo "83b8f4f2-509f-382f-3c1e-e6bfe0fa1001" > ./create + * # cd devices/83b8f4f2-509f-382f-3c1e-e6bfe0fa1001 + * # ls -d virtio0 + * virtio0 + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/k...

.... + * Author: Jason Wang <jasowang at redhat.com> + * + * Sample driver that creates mdev device that simulates ethernet loopback + * device. + * + * Usage: + * + * # modprobe virtio_mdev + * # modprobe mvnet_loopback + * # cd /sys/devices/virtual/mvnet_loopback/mvnet_loopback/ \ + * mdev_supported_types/mvnet_loopback-virtio + * # echo "83b8f4f2-509f-382f-3c1e-e6bfe0fa1001" > ./create + * # cd devices/83b8f4f2-509f-382f-3c1e-e6bfe0fa1001 + * # ls -d virtio0 + * virtio0 + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/device.h> +#include &l...

...2019, Red Hat Inc. All rights reserved. + * Author: Jason Wang <jasowang at redhat.com> + * + * Sample driver that creates mdev device that simulates ethernet loopback + * device. + * + * Usage: + * + * # modprobe virtio_mdev + * # modprobe mvnet + * # cd /sys/devices/virtual/mvnet/mvnet/mdev_supported_types/mvnet-virtio + * # echo "83b8f4f2-509f-382f-3c1e-e6bfe0fa1001" > ./create + * # cd devices/83b8f4f2-509f-382f-3c1e-e6bfe0fa1001 + * # ls -d virtio0 + * virtio0 + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/k...

...2019, Red Hat Inc. All rights reserved. + * Author: Jason Wang <jasowang at redhat.com> + * + * Sample driver that creates mdev device that simulates ethernet loopback + * device. + * + * Usage: + * + * # modprobe virtio_mdev + * # modprobe mvnet + * # cd /sys/devices/virtual/mvnet/mvnet/mdev_supported_types/mvnet-virtio + * # echo "83b8f4f2-509f-382f-3c1e-e6bfe0fa1001" > ./create + * # cd devices/83b8f4f2-509f-382f-3c1e-e6bfe0fa1001 + * # ls -d virtio0 + * virtio0 + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/k...

...Author: Jason Wang <jasowang at redhat.com> > + * > + * Sample driver that creates mdev device that simulates ethernet loopback > + * device. > + * > + * Usage: > + * > + * # modprobe virtio_mdev > + * # modprobe mvnet > + * # cd /sys/devices/virtual/mvnet/mvnet/mdev_supported_types/mvnet-virtio > + * # echo "83b8f4f2-509f-382f-3c1e-e6bfe0fa1001" > ./create > + * # cd devices/83b8f4f2-509f-382f-3c1e-e6bfe0fa1001 > + * # ls -d virtio0 > + * virtio0 > + */ > + > +#include <linux/init.h> > +#include <linux/module.h> > +#include...

...Author: Jason Wang <jasowang at redhat.com> > + * > + * Sample driver that creates mdev device that simulates ethernet loopback > + * device. > + * > + * Usage: > + * > + * # modprobe virtio_mdev > + * # modprobe mvnet > + * # cd /sys/devices/virtual/mvnet/mvnet/mdev_supported_types/mvnet-virtio > + * # echo "83b8f4f2-509f-382f-3c1e-e6bfe0fa1001" > ./create > + * # cd devices/83b8f4f2-509f-382f-3c1e-e6bfe0fa1001 > + * # ls -d virtio0 > + * virtio0 > + */ > + > +#include <linux/init.h> > +#include <linux/module.h> > +#include...

Hi all: There are hardwares that can do virtio datapath offloading while having its own control path. This path tries to implement a mdev based unified API to support using kernel virtio driver to drive those devices. This is done by introducing a new mdev transport for virtio (virtio_mdev) and register itself as a new kind of mdev driver. Then it provides a unified way for kernel virtio driver

Hi all: There are hardware that can do virtio datapath offloading while having its own control path. This path tries to implement a mdev based unified API to support using kernel virtio driver to drive those devices. This is done by introducing a new mdev transport for virtio (virtio_mdev) and register itself as a new kind of mdev driver. Then it provides a unified way for kernel virtio driver to

Hi all: There are hardwares that can do virtio datapath offloading while having its own control path. This path tries to implement a mdev based unified API to support using kernel virtio driver to drive those devices. This is done by introducing a new mdev transport for virtio (virtio_mdev) and register itself as a new kind of mdev driver. Then it provides a unified way for kernel virtio driver

Hi all: There are hardwares that can do virtio datapath offloading while having its own control path. This path tries to implement a mdev based unified API to support using kernel virtio driver to drive those devices. This is done by introducing a new mdev transport for virtio (virtio_mdev) and register itself as a new kind of mdev driver. Then it provides a unified way for kernel virtio driver