On Tue, 5 Nov 2019 17:32:34 +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 ICF 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 parents ops out of the common ones. > > Pktgen test was done with virito-net + mvnet loop back device. > > Please review. > > [1] https://lkml.org/lkml/2019/10/31/440 > [2] https://lkml.org/lkml/2019/10/15/1226 > > Changes from V7: > - drop {set|get}_mdev_features for virtio > - typo and comment style fixes Seems we're nearly there, all the remaining comments are relatively superficial, though I would appreciate a v9 addressing them as well as the checkpatch warnings: https://patchwork.freedesktop.org/series/68977/ Consider this a last call for reviews or acks (or naks) from affected mdev vendor drivers, mdev-core sub-maintainers (Hi Kirti), virtio stakeholders, etc. Thanks, Alex _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
