Merge branch 'gve-add-flow-steering-support'

Merge branch 'gve-add-flow-steering-support'

Ziwei Xiao says:

====================
gve: Add flow steering support

To support flow steering in GVE driver, there are two adminq changes
need to be made in advance.

The first one is adding adminq mutex lock, which is to allow the
incoming flow steering operations to be able to temporarily drop the
rtnl_lock to reduce the latency for registering flow rules among
several NICs at the same time. This could be achieved by the future
changes to reduce the drivers' dependencies on the rtnl lock for
particular ethtool ops.

The second one is to add the extended adminq command so that we can
support larger adminq command such as configure_flow_rule command. In
that patch, there is a new added function called
gve_adminq_execute_extended_cmd with the attribute of __maybe_unused.
That attribute will be removed in the third patch of this series where
it will use the previously unused function.

And the other three patches are needed for the actual flow steering
feature support in driver.
====================

Link: https://patch.msgid.link/20240625001232.1476315-1-ziweixiao@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>