> From: Jason Wang <jasowang@xxxxxxxxxx>
> Sent: Friday, February 5, 2021 9:11 AM
>
>
> On 2021/2/4 下午7:15, Adrian Moreno wrote:
> > Sorry I have not followed this work as close as I would have wanted.
> > Some questions below.
> >
> > On 2/4/21 4:16 AM, Jason Wang wrote:
> >> On 2021/2/2 下午6:35, Parav Pandit wrote:
> >>> Linux vdpa interface allows vdpa device management functionality.
> >>> This includes adding, removing, querying vdpa devices.
> >>>
> >>> vdpa interface also includes showing supported management devices
> >>> which support such operations.
> >>>
> >>> This patchset includes kernel uapi headers and a vdpa tool.
> >>>
> >>> examples:
> >>>
> >>> $ vdpa mgmtdev show
> >>> vdpasim:
> >>> supported_classes net
> >>>
> >>> $ vdpa mgmtdev show -jp
> >>> {
> >>> "show": {
> >>> "vdpasim": {
> >>> "supported_classes": [ "net" ]
> >>> }
> >>> }
> >>> }
> >>>
> > How can a user establish the relationship between a mgmtdev and it's
> > parent device (pci vf, sf, etc)?
>
>
> Parav should know more but I try to answer.
>
> I think there should be BDF information in the mgmtdev show command if
> the parent is a PCI device, or we can simply show the parent here?
>
Yes, it is present in the mgmtdev show command.
I should have added the example from the kernel cover letter here.
Link to the kernel cover letter is at
An example for real PCI PF,VF,SF device looks like below.
I will cover below example to the v4 cover letter while addressing David's comment for header file relocation.
$ vdpa mgmtdev list
pci/0000:03.00:0
supported_classes
net
pci/0000:03.00:4
supported_classes
net
auxiliary/mlx5_core.sf.8
supported_classes
net
[1] https://lore.kernel.org/netdev/20210105103203.82508-1-parav@xxxxxxxxxx/
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