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Re: [RFC v3 7/8] vhost-vdpa: introduce vhost-vdpa backend


From: Eric Blake
Subject: Re: [RFC v3 7/8] vhost-vdpa: introduce vhost-vdpa backend
Date: Mon, 8 Jun 2020 15:14:21 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0

On 5/29/20 9:06 AM, Cindy Lu wrote:
From: Tiwei Bie <tiwei.bie@intel.com>

The original author is Tiwei Bie...


Currently we have 2 types of vhost backends in QEMU: vhost kernel and
vhost-user. The above patch provides a generic device for vDPA purpose,
this vDPA device exposes to user space a non-vendor-specific configuration
interface for setting up a vhost HW accelerator, this patch set introduces
a third vhost backend called vhost-vdpa based on the vDPA interface.

Vhost-vdpa usage:

   qemu-system-x86_64 -cpu host -enable-kvm \
     ......
   -netdev type=vhost-vdpa,vhostdev=/dev/vhost-vdpa-id,id=vhost-vdpa0 \
   -device virtio-net-pci,netdev=vhost-vdpa0,page-per-vq=on \

Co-Authored-By: Lingshan zhu <lingshan.zhu@intel.com>
Signed-off-by: Cindy Lu <lulu@redhat.com>
---

...but there is no S-o-b here. Also, Co-Authored-By is an unusual tag; it's just as easy to spell it Signed-off-by even for co-authors.

[Pardon my delicacy in wording my response; I unfortunately lack enough cultural context to know a preferred name or even gender-correct pronouns for referring to the authors in shorthand]

--
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org




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