| Message ID | 20220105005900.860-1-longpeng2@huawei.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | add generic vDPA device support | expand |
On Wed, Jan 05, 2022 at 08:58:50AM +0800, Longpeng(Mike) wrote: > From: Longpeng <longpeng2@huawei.com> > > Hi guys, > > This patchset tries to support the generic vDPA device, the previous > disscussion can be found here [1]. > > With the generic vDPA device, QEMU won't need to touch the device > types any more, such like vfio. > > We can use the generic vDPA device as follow: > -device vhost-vdpa-device-pci,vdpa-dev=/dev/vhost-vdpa-X > > I've done some simple tests on Huawei's offloading card (net, 0.95) > and vdpa_sim_blk (1.0); > > Note: > the kernel part does not send out yet, I'll send it as soon as possible. > > [1] https://lore.kernel.org/all/20211208052010.1719-1-longpeng2@huawei.com/ > > Longpeng (Mike) (10): > virtio: get class_id and pci device id by the virtio id > vhost: add 3 commands for vhost-vdpa > vdpa: add the infrastructure of vdpa-dev > vdpa-dev: implement the instance_init/class_init interface > vdpa-dev: implement the realize interface > vdpa-dev: implement the unrealize interface > vdpa-dev: implement the get_config/set_config interface > vdpa-dev: implement the get_features interface > vdpa-dev: implement the set_status interface > vdpa-dev: mark the device as unmigratable Nice and small. Stefan
From: Longpeng <longpeng2@huawei.com> Hi guys, This patchset tries to support the generic vDPA device, the previous disscussion can be found here [1]. With the generic vDPA device, QEMU won't need to touch the device types any more, such like vfio. We can use the generic vDPA device as follow: -device vhost-vdpa-device-pci,vdpa-dev=/dev/vhost-vdpa-X I've done some simple tests on Huawei's offloading card (net, 0.95) and vdpa_sim_blk (1.0); Note: the kernel part does not send out yet, I'll send it as soon as possible. [1] https://lore.kernel.org/all/20211208052010.1719-1-longpeng2@huawei.com/ Longpeng (Mike) (10): virtio: get class_id and pci device id by the virtio id vhost: add 3 commands for vhost-vdpa vdpa: add the infrastructure of vdpa-dev vdpa-dev: implement the instance_init/class_init interface vdpa-dev: implement the realize interface vdpa-dev: implement the unrealize interface vdpa-dev: implement the get_config/set_config interface vdpa-dev: implement the get_features interface vdpa-dev: implement the set_status interface vdpa-dev: mark the device as unmigratable hw/virtio/Kconfig | 5 + hw/virtio/meson.build | 2 + hw/virtio/vdpa-dev-pci.c | 127 +++++++++++++ hw/virtio/vdpa-dev.c | 355 +++++++++++++++++++++++++++++++++++ hw/virtio/virtio-pci.c | 93 +++++++++ hw/virtio/virtio-pci.h | 4 + include/hw/virtio/vdpa-dev.h | 26 +++ linux-headers/linux/vhost.h | 10 + 8 files changed, 622 insertions(+) create mode 100644 hw/virtio/vdpa-dev-pci.c create mode 100644 hw/virtio/vdpa-dev.c create mode 100644 include/hw/virtio/vdpa-dev.h