Re: [PATCH v14 17/17] net: stream: add QAPI events to report connection state

[Markus Armbruster <armbru@xxxxxxxxxx>]

Laurent Vivier <lvivier@xxxxxxxxxx> writes:

> The netdev reports NETDEV_STREAM_CONNECTED event when the backend
> is connected, and NETDEV_STREAM_DISCONNECTED when it is disconnected.
>
> The NETDEV_STREAM_CONNECTED event includes the destination address.
>
> This allows a system manager like libvirt to detect when the server
> fails.
>
> For instance with passt:
>
> { 'execute': 'qmp_capabilities' }
> { "return": { } }
> { "timestamp": { "seconds": 1666341395, "microseconds": 505347 },
>     "event": "NETDEV_STREAM_CONNECTED",
>     "data": { "netdev-id": "netdev0",
>         "addr": { "path": "/tmp/passt_1.socket", "type": "unix" } } }
>
> [killing passt here]
>
> { "timestamp": { "seconds": 1666341430, "microseconds": 968694 },
>     "event": "NETDEV_STREAM_DISCONNECTED",
>     "data": { "netdev-id": "netdev0" } }
>
> Signed-off-by: Laurent Vivier <lvivier@xxxxxxxxxx>
> Acked-by: Michael S. Tsirkin <mst@xxxxxxxxxx>

QAPI schema
Acked-by: Markus Armbruster <armbru@xxxxxxxxxx>