From: Longpeng <longpe...@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); The kernel part: https://lkml.org/lkml/2022/1/17/239 Changes RFC -> v1 Patch 1: - rename 'pdev_id' to 'trans_devid' [Michael] - only use transitional device id for the devices listed in the spec [Michael] - use macros to make the id_info table clearer [Longpeng] - add some modern devices in the id_info table [Longpeng] Patch 2: - remove the GET_VECTORS_NUM command [Jason] Patch 4: - expose vdpa_dev_fd as a QOM preperty [Stefan] - introduce vhost_vdpa_device_get_u32 as a common function to make the code clearer [Stefan] - fix the misleading description of 'dc->desc' [Stefano] Patch 5: - check returned number of virtqueues [Stefan] Patch 6: - init s->num_queues [Stefano] - free s->dev.vqs [Stefano] Longpeng (Mike) (10): virtio: get class_id and pci device id by the virtio id update linux headers 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 | 99 ++++++++++ hw/virtio/vdpa-dev.c | 357 +++++++++++++++++++++++++++++++++++ hw/virtio/virtio-pci.c | 77 ++++++++ hw/virtio/virtio-pci.h | 5 + include/hw/virtio/vdpa-dev.h | 29 +++ linux-headers/linux/vhost.h | 7 + 8 files changed, 581 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 -- 2.23.0
