Messages in this thread | | | From | Arnd Bergmann <> | Date | Thu, 17 Jan 2019 17:34:10 +0100 | Subject | Re: [PATCH 0/8] Virtio-over-PCIe on non-MIC |
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On Thu, Jan 17, 2019 at 5:26 PM Vincent Whitchurch <vincent.whitchurch@axis.com> wrote: > On Thu, Jan 17, 2019 at 04:53:25PM +0100, Arnd Bergmann wrote: > > On Thu, Jan 17, 2019 at 4:19 PM Vincent Whitchurch
> > Ok, this seems fine so far. So the vop-host-backend is a regular PCI > > driver that implements the VOP protocol from the host side, and it > > can talk to either a MIC, or another guest-backend written for the PCI-EP > > framework to implement the same protocol, right? > > Yes, but just to clarify: the placement of the device page and the way > to communicate the location of the device page address and any other > information needed by the guest-backend are hardware-specific so there > is no generic vop-host-backend implementation which can talk to both a > MIC and to something else.
I'm not sure I understand what is hardware specific about it. Shouldn't it be possible to define at least a vop-host-backend that could work with any guest-backend running on the PCI-EP framework?
This may have to be different from the interface used on MIC, but generally speaking that is what I expect from a PCI device.
Arnd
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