On Mon, Oct 07, 2019 at 05:41:10PM +0000, Dexuan Cui wrote: > > From: linux-hyperv-ow...@vger.kernel.org > > <linux-hyperv-ow...@vger.kernel.org> On Behalf Of Andrea Parri > > Sent: Monday, October 7, 2019 9:31 AM > > > > Hi all, > > > > The patchset: > > > > - simplifies/refactors the VMBus negotiation code by introducing > > the table of VMBus protocol versions (patch 1/2), > > > > - enables VMBus protocol versions 5.1 and 5.2 (patch 2/2). > > > > Thanks, > > Andrea > > > > Andrea Parri (2): > > Drivers: hv: vmbus: Introduce table of VMBus protocol versions > > Drivers: hv: vmbus: Enable VMBus protocol versions 5.1 and 5.2 > > Should we add a module parameter to allow the user to specify a lower > protocol version, when the VM runs on the latest host? > > This can be useful for testing and debugging purpose: the variable > "vmbus_proto_version" is referenced by the vmbus driver itself and > some VSC drivers: if we always use the latest available proto version, > some code paths can not be tested on the latest hosts.
The idea is appealing to me (altough I made no attempt to implement/test it yet). What do others think about this? Maybe can be considered as a follow-up patch/work to this series? Thanks, Andrea
