Re: New commands to configure IOV features

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I've tried to figure out if there was a standard interface
(ethtool/iproute) through which a user could configure the number
of vfs in his system.

I've seen the RFC suggested in
http://markmail.org/thread/qblfcv7zbxsxp7q6, and
http://markmail.org/thread/fw54dcppmxuxoe6n, but failed to see any
later references to it (commits or further discussion on this
topic).

How exactly are things standing with these RFCs? Were they
abandoned?

The only way to configure the number of VFs continues to be through
the max_vfs module parameter.  I've got a patch to do it through
ethtool sitting on the back burner but due to other requirements of
my day job I've not been able to work on it since last fall.

- Greg

Hi Ben,

If I want to pick the RFCs and add support for configuring the number
of VFs - do you think ethtool's the right place for such added
support?

I'm asking since as far as I can see, ethtool (today) doesn't contain
any features related to virtual functions.

I think a PCI utility tool would be better, SR-IOV is not limited to
network devices.  That's one of the reasons I dropped the RFC.  I
haven't gotten back to the idea since then due to my day job keeping me
pretty busy.

- Greg

I'm adding the linux-pci guys, since they (obviously) are the experts in
these topics.

Is there any PCI utility (or at least an existing kernel API) which is
suitable for adding this sort of functionality?

Thanks,
Yuval