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From: Leon Romanovsky <leon@kernel.org>
To: Michal Kubecek <mkubecek@suse.cz>
Cc: netdev@vger.kernel.org, Shannon Nelson <snelson@pensando.io>,
	Jakub Kicinski <kuba@kernel.org>,
	"David S . Miller" <davem@davemloft.net>,
	Michal Kalderon <michal.kalderon@marvell.com>,
	RDMA mailing list <linux-rdma@vger.kernel.org>
Subject: Re: [PATCH net-next] net/core: Replace driver version to be kernel version
Date: Mon, 27 Jan 2020 07:18:54 +0200	[thread overview]
Message-ID: <20200127051854.GE3870@unreal> (raw)
In-Reply-To: <20200126222253.GX22304@unicorn.suse.cz>

On Sun, Jan 26, 2020 at 11:22:53PM +0100, Michal Kubecek wrote:
> On Sun, Jan 26, 2020 at 02:12:38PM -0800, Shannon Nelson wrote:
> > On 1/26/20 1:24 PM, Leon Romanovsky wrote:
> > > On Sun, Jan 26, 2020 at 01:17:52PM -0800, Shannon Nelson wrote:
> > > > On 1/26/20 1:08 PM, Leon Romanovsky wrote:
> > > > > The long-standing policy in kernel that we don't really care about
> > > > > out-of-tree code.
> > > > That doesn't mean we need to be aggressively against out-of-tree code.  One
> > > > of the positive points about Linux and loadable modules has always been the
> > > > flexibility that allows and encourages innovation, and helps enable more
> > > > work and testing before a driver can become a fully-fledged part of the
> > > > kernel.  This move actively discourages part of that flexibility and I think
> > > > it is breaking part of the usefulness of modules.
> > > You are mixing definitions, nothing stops those people to innovate and
> > > develop their code inside kernel and as standalone modules too.
> > >
> > > It just stops them to put useless driver version string inside ethtool.
> > > If they feel that their life can't be without something from 90s, they
> > > have venerable MODULE_VERSION() macro to print anything they want.
> > >
> > Part of the pain of supporting our users is getting them to give us useful
> > information about their problem.  The more commands I need them to run to
> > get information about the environment, the less likely I will get anything
> > useful.  We've been training our users over the years to use "ethtool -i" to
> > get a good chunk of that info, with the knowledge that the driver version is
> > only a hint, based upon the distro involved.  I don't want to lose that
> > hint.  If anything, I'd prefer that we added a field for UTS_RELEASE in the
> > ethtool output, but I know that's too much to ask.
>
> At the same time, I've been trying to explain both our L1/L2 support
> guys and our customers that "driver version" information reported by
> "ethtool -i" is almost useless and that if they really want to identify
> driver version, they should rather use srcversion as reported by modinfo
> or sysfs.

We went even farther and wrote simple bash script that collects all
needed information from the system.

Thanks

>
> Michal

  parent reply	other threads:[~2020-01-27  5:18 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-23 13:05 Leon Romanovsky
2020-01-23 14:40 ` Jakub Kicinski
2020-01-23 14:54   ` Leon Romanovsky
2020-01-23 15:17     ` Jakub Kicinski
2020-01-25  9:13 ` David Miller
2020-01-26 18:56 ` Shannon Nelson
2020-01-26 19:41   ` Leon Romanovsky
2020-01-26 20:49     ` Jakub Kicinski
2020-01-26 21:08       ` Leon Romanovsky
2020-01-26 21:17         ` Shannon Nelson
2020-01-26 21:24           ` Leon Romanovsky
2020-01-26 22:12             ` Shannon Nelson
2020-01-26 22:22               ` Michal Kubecek
2020-01-26 22:57                 ` Shannon Nelson
2020-01-27  6:08                   ` Michal Kubecek
2020-01-27  6:42                     ` Leon Romanovsky
2020-01-27  5:18                 ` Leon Romanovsky [this message]
2020-01-26 21:33         ` Jakub Kicinski
2020-01-26 22:21           ` Shannon Nelson
2020-01-27  5:34             ` Leon Romanovsky
2020-01-27  6:45               ` Leon Romanovsky
2020-01-27 14:21                 ` Jakub Kicinski
2020-01-27 15:39                   ` Leon Romanovsky
2020-01-27  5:49           ` Leon Romanovsky
2020-01-27 12:21             ` David Miller
2020-01-27 12:42               ` Leon Romanovsky
2020-01-27 12:47                 ` David Miller
2020-01-27 17:57             ` Shannon Nelson
2020-01-26 20:52     ` Shannon Nelson
2020-01-26 21:19       ` Leon Romanovsky

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