RE: [PATCH net-next] hyperv: Add handler for RNDIS_STATUS_NETWORK_CHANGE event

[Haiyang Zhang]

> -----Original Message-----
> From: Olaf Hering [mailto:olaf@xxxxxxxxx]
> Sent: Monday, June 23, 2014 4:03 AM
> To: Haiyang Zhang
> Cc: Greg KH; netdev@xxxxxxxxxxxxxxx; jasowang@xxxxxxxxxx; driverdev-
> devel@xxxxxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> davem@xxxxxxxxxxxxx
> Subject: Re: [PATCH net-next] hyperv: Add handler for
> RNDIS_STATUS_NETWORK_CHANGE event
> 
> On Fri, Jun 20, Haiyang Zhang wrote:
> 
> > This command ("/etc/init.d/network restart") exists on our supported
> distros
> > currently. We will also look into some better ways to refresh the
> network for
> > the distros without this command. I have tried setting IF_OPER_DORMANT
> then
> > IF_OPER_UP, but not working. I will look into the suspend/resume cycle
> as
> > well.
> 
> I think its reasonable to expect guest config changes on this new kind
> of host. Would a link-down/link-up event work? I'm sure it will, there
> is enough code floating around in the guests which handles cable unplug.

Do you mean netif_carrier_off() / netif_carrier_on()? They are already 
called in the code before this patch, but DHCP renew is not triggered by
them.

Thanks,
- Haiyang