On Wed, Feb 16, 2022 at 8:06 PM Leon Romanovsky <leon@xxxxxxxxxx> wrote: > > On Wed, Feb 16, 2022 at 06:03:29PM +0800, Junji Wei wrote: > > > > > On Feb 16, 2022, at 5:48 PM, Leon Romanovsky <leon@xxxxxxxxxx> wrote: > > > > > > On Wed, Feb 16, 2022 at 04:00:53PM +0800, Junji Wei wrote: > > > > > > <...> > > > > > >>> > > >>> What is the use case for this virtio-rdma? Especially in context of RXE. > > >> > > >> Hmm... yes, we didn’t find one. In passthrough case we can use RXE directly. > > > > > > It doesn't sound like a good sales pitch. > > > > Maybe I misunderstanded what you mean. We mean we didn’t find a user case > > for virtio-rdma with passthrough net device. Do you want to know the user > > case for our virtio-rdma(RoCE) proposal? > > Yes, please. > I think one point is: when running RDMA accelerated applications in VM, the virtio-rdma solution should get better performance than RXE since it has a shorter data path (guest app -> host dpdk, bypass guest kernel). Thanks, Yongji
