On Wed, 6 Nov 2019 21:35:25 +0800 Jason Wang <jasowang@xxxxxxxxxx> wrote: > 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 to talk with mdev > device implementation. > > Though the series only contains kernel driver support, the goal is to > make the transport generic enough to support userspace drivers. This > means vhost-mdev[1] could be built on top as well by resuing the > transport. > > A sample driver is also implemented which simulate a virito-net > loopback ethernet device on top of vringh + workqueue. This could be > used as a reference implementation for real hardware driver. > > Also a real IFC VF driver was also posted here[2] which is a good > reference for vendors who is interested in their own virtio datapath > offloading product. > > Consider mdev framework only support VFIO device and driver right now, > this series also extend it to support other types. This is done > through introducing class id to the device and pairing it with > id_talbe claimed by the driver. On top, this seris also decouple > device specific ops out of the common ones for implementing class > specific operations over mdev bus. > > Pktgen test was done with virito-net + mvnet loop back device. > > Please review. All looking good to me now. > > [1] https://lkml.org/lkml/2019/11/5/424 > [2] https://lkml.org/lkml/2019/11/5/227 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
