Patch to auto-load MSFT PV NIC driver
Greg KH
greg at kroah.com
Mon May 10 17:21:25 UTC 2010
On Mon, May 10, 2010 at 05:05:02PM +0000, Hank Janssen wrote:
>
> >Sent: Saturday, May 08, 2010 7:27 AM - Hank Janssen
> >>On Sat, May 08, 2010 at 01:52:01PM +0000, Hank Janssen wrote:>
> >>
> >> I am not sure if this is the right approach. hv_netvsc takes a dependency on hv_vmbus.
> >> hv_vmbus does have the same DMI detection logic in it. But unless hv_vmbus has loaded
> >> up competely, hv_netvsc will fail on loadup. And I do not think we can guarantee that
> >> hv_vmbus has loaded yet.
> >
> >Yes you can, the dependancies in the module will take care of it. Try
> >it, if you try to load the hv_netvsc module before hv_vmbus, modprobe
> >will load hv_vmbus first.
>
> In my testing I have seen issues with timing. It takes a little while for VMBus to start
> getting the initialization taken care of with Hyper-V. And I have seen netvsc error with
> unresolved symbols because vmbus had not completed the initialization yet.
Odd, that shouldn't happen, unless you are loading modules in parallel.
If we switch to a proper discovery type bus, this should not be an
issue.
thanks,
greg k-h
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