On Wed, Apr 4, 2012 at 5:05 PM, Chris Wright <chr...@sous-sol.org> wrote:
> * Ryota MIBU (r-m...@cq.jp.nec.com) wrote: > > Hi Dan, > > > I think there is another sub topic, but I am not sure yet. > > > I agree that a configurable VIF driver is much better. > > > For designing the configuration of vif-plugging, it is required > that we discuss the granularity of selecting > > >VIF Driver. > > > Should The granularity of selecting VIF Driver be per node, VM, or > VIF? > > > Currently, VIF Driver would be configured in nova-compute.conf. > > > This means that the granularity is per Hypervisor Node. > > > To be more flexible, we might consider the case where VIF1 of VM1 > connects to bridge and VIF2 of VM1 maps > > >to a physical NIC > > > directly. > > > If so, it may raise another issue; how to determine connection > type of VIF. > > >That's an interesting use case, and something that we haven't tried to > deal with yet. In your use case, who would > > >determine how a VIF was mapped? Would it be a policy described by the > service provider? Would it be part of the > > >VM flavor? Adding this kind of flexibility is certainly possible, > though you are the first person who has expressed > > >a need for this type of flexibility. > > > > It could be mixed. > > I think that a cloud user specifies vNIC option like "physical NIC > mapping" as a VM flavor, > > then a service provider determines a hypervisor node and it's available > physical NIC. > > Yes, come across similar issue, esp w/ SR-IOV virtual functions instead of > physical functions. > Whoops, sorry Ryota, I missed this part of your email. I understand the use case. Being able to invoke different types of vif-plugging based on flavor would be one way to think about it. Another way would be to think about it would be a single vif-plugging mechanism that can configure the vif in two ways based on the flavor. dan > > > It is not suitable that the cloud user specifies physical NIC itself. > > But this though is not clear enough to having a session on the summit, > > I hope that we discuss this issue on vif-plugging session or somewhere > in the summit. > -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~ Dan Wendlandt Nicira, Inc: www.nicira.com twitter: danwendlandt ~~~~~~~~~~~~~~~~~~~~~~~~~~~
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