[Qemu-devel] kvm networking todo wiki

[Qemu-devel] kvm networking todo wiki

[Michael S. Tsirkin]

I've put up a wiki page with a kvm networking todo list,
mainly to avoid effort duplication, but also in the hope
to draw attention to what I think we should try addressing
in KVM:

http://www.linux-kvm.org/page/NetworkingTodo

This page could cover all networking related activity in KVM,
currently most info is related to virtio-net.

Note: if there's no developer listed for an item,
this just means I don't know of anyone actively working
on an issue at the moment, not that no one intends to.

I would appreciate it if others working on one of the items on this list
would add their names so we can communicate better.  If others like this
wiki page, please go ahead and add stuff you are working on if any.

It would be especially nice to add autotest projects:
there is just a short test matrix and a catch-all
'Cover test matrix with autotest', currently.

Currently there are some links to Red Hat bugzilla entries,
feel free to add links to other bugzillas.

Thanks!

-- 
MST

[Qemu-devel] Re: kvm networking todo wiki

[Sridhar Samudrala]

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  On Tue, 2010-09-21 at 18:11 +0200, Michael S. Tsirkin wrote:
> I've put up a wiki page with a kvm networking todo list,
> mainly to avoid effort duplication, but also in the hope
> to draw attention to what I think we should try addressing
> in KVM:
>
> http://www.linux-kvm.org/page/NetworkingTodo
>
> This page could cover all networking related activity in KVM,
> currently most info is related to virtio-net.
>
> Note: if there's no developer listed for an item,
> this just means I don't know of anyone actively working
> on an issue at the moment, not that no one intends to.
>
> I would appreciate it if others working on one of the items on this list
> would add their names so we can communicate better.  If others like this
> wiki page, please go ahead and add stuff you are working on if any.
>
> It would be especially nice to add autotest projects:
> there is just a short test matrix and a catch-all
> 'Cover test matrix with autotest', currently.
>
> Currently there are some links to Red Hat bugzilla entries,
> feel free to add links to other bugzillas.

Thanks for capturing these items. It is really useful.

Another item that is missing is
- support assigning SR-IOV VF to a guest via tap/macvtap

Currently, this requires
  - VF to be put in promiscuous mode when using a bridge/tap
  - add a new mac address to VF when using macvtap.

I don't think any of the VF drivers provide these capabilities
at this time.

-Sridhar


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[Qemu-devel] Re: kvm networking todo wiki

[Michael S. Tsirkin]

On Wed, Sep 22, 2010 at 03:46:22PM -0700, Sridhar Samudrala wrote:
> On Tue, 2010-09-21 at 18:11 +0200, Michael S. Tsirkin wrote:
> 
>     I've put up a wiki page with a kvm networking todo list,
>     mainly to avoid effort duplication, but also in the hope
>     to draw attention to what I think we should try addressing
>     in KVM:
> 
>     http://www.linux-kvm.org/page/NetworkingTodo
> 
>     This page could cover all networking related activity in KVM,
>     currently most info is related to virtio-net.
> 
>     Note: if there's no developer listed for an item,
>     this just means I don't know of anyone actively working
>     on an issue at the moment, not that no one intends to.
> 
>     I would appreciate it if others working on one of the items on this list
>     would add their names so we can communicate better.  If others like this
>     wiki page, please go ahead and add stuff you are working on if any.
> 
>     It would be especially nice to add autotest projects:
>     there is just a short test matrix and a catch-all
>     'Cover test matrix with autotest', currently.
> 
>     Currently there are some links to Red Hat bugzilla entries,
>     feel free to add links to other bugzillas.
> 
> 
> Thanks for capturing these items. It is really useful.
> 
> Another item that is missing is
> - support assigning SR-IOV VF to a guest via tap/macvtap
> 
> Currently, this requires
>  - VF to be put in promiscuous mode when using a bridge/tap
>  - add a new mac address to VF when using macvtap.
> 
> I don't think any of the VF drivers provide these capabilities
> at this time.
> 
> -Sridhar

I think this is part of what is needed for the work item:
    *  guest programmable mac/vlan filtering with macvtap 
If yes pls add this detail if not add another item.
More importantly: anyone's going to work on this?


-- 
MST

[Qemu-devel] Re: kvm networking todo wiki

[Dragos Tatulea]

Hi,

> More importantly: anyone's going to work on this?

I'd like to work on this. Might need some assistance though.

Thanks,
Dragos

[Qemu-devel] Re: kvm networking todo wiki

[Michael S. Tsirkin]

On Sun, Oct 10, 2010 at 01:37:45PM +0200, Dragos Tatulea wrote:
> Hi,
> 
> > More importantly: anyone's going to work on this?
> 
> I'd like to work on this. Might need some assistance though.
> 
> Thanks,
> Dragos

Cool, you can add this info to the wiki.
Thanks!

-- 
MST

[Qemu-devel] Re: kvm networking todo wiki

[Michael S. Tsirkin]

On Sun, Oct 10, 2010 at 01:37:45PM +0200, Dragos Tatulea wrote:
> Hi,
> 
> > More importantly: anyone's going to work on this?
> 
> I'd like to work on this. Might need some assistance though.
> 
> Thanks,
> Dragos

BTW, as in some situations hardware might not be able satisfy
requirements, a subset of this item would be to expose whatever macvtap
is capable of, to the guest.  E.g. if mac can not be changed we could at
least query the mac, something that would be convenient as noted by mjt
in an irc chat.

To enable migration we'd then need a set of flags to limit this to a least
common denominator on a given network.

-- 
MST