On Thu, Jan 06, 2022 at 01:22:19AM +0000, Longpeng (Mike, Cloud Infrastructure Service Product Dept.) wrote: > > > > -----Original Message----- > > From: Stefan Hajnoczi [mailto:stefa...@redhat.com] > > Sent: Wednesday, January 5, 2022 5:49 PM > > To: Longpeng (Mike, Cloud Infrastructure Service Product Dept.) > > <longpe...@huawei.com> > > Cc: m...@redhat.com; jasow...@redhat.com; sgarz...@redhat.com; > > coh...@redhat.com; pbonz...@redhat.com; Gonglei (Arei) > > <arei.gong...@huawei.com>; Yechuan <yech...@huawei.com>; Huangzhichao > > <huangzhic...@huawei.com>; qemu-devel@nongnu.org > > Subject: Re: [RFC 03/10] vdpa: add the infrastructure of vdpa-dev > > > > On Wed, Jan 05, 2022 at 08:58:53AM +0800, Longpeng(Mike) wrote: > > > +static const VirtioPCIDeviceTypeInfo vhost_vdpa_device_pci_info = { > > > + .base_name = TYPE_VHOST_VDPA_DEVICE_PCI, > > > + .generic_name = "vhost-vdpa-device-pci", > > > + .transitional_name = "vhost-vdpa-device-pci-transitional", > > > + .non_transitional_name = "vhost-vdpa-device-pci-non-transitional", > > > > Does vDPA support Transitional VIRTIO devices? > > > > I expected this device to support Modern devices only. > > > > There's already a 0.95 vdpa driver (Alibaba ENI) in the kernel source and > supporting 0.95 devices is necessary for some older GuestOS. > > I'm OK if other guys also approve of supporting 1.0+ devices only :)
If vDPA supports Transitional VIRTIO devices then it's fine to keep this code unchanged in this patch series. Stefan
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