From: Andrea Parri <parri.andrea@gmail.com>
To: Dexuan Cui <decui@microsoft.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Sasha Levin <sashal@kernel.org>,
Michael Kelley <mikelley@microsoft.com>,
vkuznets <vkuznets@redhat.com>
Subject: Re: [PATCH 0/2] Drivers: hv: vmbus: Miscellaneous improvements
Date: Tue, 8 Oct 2019 17:08:47 +0200 [thread overview]
Message-ID: <20191008150847.GA15276@andrea> (raw)
In-Reply-To: <PU1P153MB01691E9B0DD83E521B1E12C0BF9B0@PU1P153MB0169.APCP153.PROD.OUTLOOK.COM>
On Mon, Oct 07, 2019 at 05:41:10PM +0000, Dexuan Cui wrote:
> > From: linux-hyperv-owner@vger.kernel.org
> > <linux-hyperv-owner@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
next prev parent reply other threads:[~2019-10-08 15:08 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-07 16:31 [PATCH 0/2] Drivers: hv: vmbus: Miscellaneous improvements Andrea Parri
2019-10-07 16:31 ` [PATCH 1/2] Drivers: hv: vmbus: Introduce table of VMBus protocol versions Andrea Parri
2019-10-07 17:14 ` Vitaly Kuznetsov
2019-10-08 12:41 ` Andrea Parri
2019-10-08 12:44 ` Andrea Parri
2019-10-08 13:00 ` Vitaly Kuznetsov
2019-10-08 22:41 ` Dexuan Cui
2019-10-09 9:54 ` Andrea Parri
2019-10-07 17:25 ` Dexuan Cui
2019-10-08 12:42 ` Andrea Parri
2019-10-07 16:31 ` [PATCH 2/2] Drivers: hv: vmbus: Enable VMBus protocol versions 5.1 and 5.2 Andrea Parri
2019-10-07 17:41 ` [PATCH 0/2] Drivers: hv: vmbus: Miscellaneous improvements Dexuan Cui
2019-10-08 15:08 ` Andrea Parri [this message]
2019-10-08 19:47 ` Vitaly Kuznetsov
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