[RFC PATCH] broadband-modem-mbim: refine access technology updates

Dan Williams dcbw at redhat.com
Fri May 16 08:10:16 PDT 2014


On Fri, 2014-05-16 at 09:43 +0200, Aleksander Morgado wrote:
> >> > Looks like the right approach.  The only thing I'd worry about is
> >> > whether we reliably get notifications for packet service at the right
> >> > times?  Should the patch be more aggressive about clearing
> >> > self->priv->HADC to ensure it isn't stale?  For example, perhaps the
> >> > device doesn't send a Packet Service "off" notification after being
> >> > explicitly disconnected because the firmware is stupid and assumes that
> >> > since the host asked for disconnection, it knows to clean up the HADC.
> >> >
> >>
> >> This seems tricky. The modem can still attach to a packet service
> >> without activating an IP session. ModemManager currently doesn't
> >> explicitly detach the packet service upon a client / network initiated
> >> disconnect. So any detach action should come from the modem
> >> internally, which means we would expect the modem to "Do The Right
> >> Thing (tm)" and notify us via a MBIM_CID_PACKET_SERVICE notification.
> >
> >
> > Dan / Aleksander, do you have any other concerns on this patch at its
> > current form?
> 
> I'm fine with it. Dan?

I'm fine with it too.

Dan



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