netdev - Re: [PATCH iproute2-next v3 0/5] Add vdpa device management tool

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Date:   Thu, 4 Feb 2021 11:16:31 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     Parav Pandit <parav@...dia.com>,
        virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
        dsahern@...il.com, stephen@...workplumber.org, mst@...hat.com,
        Adrian Moreno Zapata <amorenoz@...hat.com>
Subject: Re: [PATCH iproute2-next v3 0/5] Add vdpa device management tool


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" ]
>          }
>      }
> }
>
> Create a vdpa device of type networking named as "foo2" from
> the management device vdpasim_net:
>
> $ vdpa dev add mgmtdev vdpasim_net name foo2
>
> Show the newly created vdpa device by its name:
> $ vdpa dev show foo2
> foo2: type network mgmtdev vdpasim_net vendor_id 0 max_vqs 2 max_vq_size 256
>
> $ vdpa dev show foo2 -jp
> {
>      "dev": {
>          "foo2": {
>              "type": "network",
>              "mgmtdev": "vdpasim_net",
>              "vendor_id": 0,
>              "max_vqs": 2,
>              "max_vq_size": 256
>          }
>      }
> }
>
> Delete the vdpa device after its use:
> $ vdpa dev del foo2
>
> Patch summary:
> Patch-1 adds kernel headers for vdpa subsystem
> Patch-2 adds library routines for indent handling
> Patch-3 adds library routines for generic socket communication
> PAtch-4 adds library routine for number to string mapping
> Patch-5 adds vdpa tool
>
> Kernel headers are from the vhost kernel tree [1] from branch linux-next.
>
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git
>
> ---


Adding Adrian to see if this looks good for k8s integration.

Thanks