Re: [Qemu-devel] [RFC 0/2] vhost-vfio: introduce mdev based HW vhost backend

2018-11-08 Thread Jason Wang
On 2018/11/9 上午12:48, Liang, Cunming wrote: -Original Message- From: Jason Wang [mailto:jasow...@redhat.com] Sent: Thursday, November 8, 2018 2:16 AM To: Liang, Cunming; Wang, Xiao W ;m...@redhat.com;alex.william...@redhat.com Cc:qemu-devel@nongnu.org; Bie, Tiwei; Ye, Xiaolong ; Wang,

Re: [Qemu-devel] [RFC 0/2] vhost-vfio: introduce mdev based HW vhost backend

2018-11-08 Thread Liang, Cunming
> -Original Message- > From: Jason Wang [mailto:jasow...@redhat.com] > Sent: Thursday, November 8, 2018 2:16 AM > To: Liang, Cunming ; Wang, Xiao W > ; m...@redhat.com; alex.william...@redhat.com > Cc: qemu-devel@nongnu.org; Bie, Tiwei ; Ye, Xiaolong > ; Wang, Zhihong ; Daly, Dan > >

Re: [Qemu-devel] [RFC 0/2] vhost-vfio: introduce mdev based HW vhost backend

2018-11-07 Thread Jason Wang
On 2018/11/7 下午11:08, Liang, Cunming wrote: believe. [LC] Agreed, so it reuses CMD defined by vhost-kernel ioctl. But VFIO provides device specific things (e.g. DMAR, INTR and etc.) which is the extra APIs being introduced by this transport. I'm not quite sure I understand here. I think

Re: [Qemu-devel] [RFC 0/2] vhost-vfio: introduce mdev based HW vhost backend

2018-11-07 Thread Liang, Cunming
> -Original Message- > From: Jason Wang [mailto:jasow...@redhat.com] > Sent: Wednesday, November 7, 2018 2:38 PM > To: Liang, Cunming ; Wang, Xiao W > ; m...@redhat.com; alex.william...@redhat.com > Cc: qemu-devel@nongnu.org; Bie, Tiwei ; Ye, Xiaolong > ; Wang, Zhihong ; Daly, Dan > >

Re: [Qemu-devel] [RFC 0/2] vhost-vfio: introduce mdev based HW vhost backend

2018-11-07 Thread Jason Wang
On 2018/11/7 下午8:26, Liang, Cunming wrote: -Original Message- From: Jason Wang [mailto:jasow...@redhat.com] Sent: Tuesday, November 6, 2018 4:18 AM To: Wang, Xiao W ; m...@redhat.com; alex.william...@redhat.com Cc: qemu-devel@nongnu.org; Bie, Tiwei ; Liang, Cunming ; Ye, Xiaolong ;

Re: [Qemu-devel] [RFC 0/2] vhost-vfio: introduce mdev based HW vhost backend

2018-11-07 Thread Liang, Cunming
> -Original Message- > From: Jason Wang [mailto:jasow...@redhat.com] > Sent: Tuesday, November 6, 2018 4:18 AM > To: Wang, Xiao W ; m...@redhat.com; > alex.william...@redhat.com > Cc: qemu-devel@nongnu.org; Bie, Tiwei ; Liang, Cunming > ; Ye, Xiaolong ; Wang, Zhihong > ; Daly, Dan >

Re: [Qemu-devel] [RFC 0/2] vhost-vfio: introduce mdev based HW vhost backend

2018-11-05 Thread Jason Wang
On 2018/10/16 下午9:23, Xiao Wang wrote: What's this === Following the patch (vhost: introduce mdev based hardware vhost backend) https://lwn.net/Articles/750770/, which defines a generic mdev device for vhost data path acceleration (aliased as vDPA mdev below), this patch set introduces

[Qemu-devel] [RFC 0/2] vhost-vfio: introduce mdev based HW vhost backend

2018-10-16 Thread Xiao Wang
What's this === Following the patch (vhost: introduce mdev based hardware vhost backend) https://lwn.net/Articles/750770/, which defines a generic mdev device for vhost data path acceleration (aliased as vDPA mdev below), this patch set introduces a new net client type: vhost-vfio.