From: Stefan Assmann <sassmann@redhat.com>
To: Casey Leedom <leedom@chelsio.com>
Cc: netdev <netdev@vger.kernel.org>,
e1000-devel@lists.sourceforge.net, "Duyck,
Alexander H" <alexander.h.duyck@intel.com>,
gregory.v.rose@intel.com, jeffrey.t.kirsher@intel.com,
Andy Gospodarek <gospo@redhat.com>
Subject: Re: [PATCH] igbvf: avoid name clash between PF and VF
Date: Thu, 01 Jul 2010 08:37:01 +0200 [thread overview]
Message-ID: <4C2C378D.4090806@redhat.com> (raw)
In-Reply-To: <201006300959.37145.leedom@chelsio.com>
On 30.06.2010 18:59, Casey Leedom wrote:
> | From: Stefan Assmann <sassmann@redhat.com>
> | Date: Wednesday, June 30, 2010 01:53 am
> |
> | This is not a udev bug since udev doesn't create persistent rules for
> | VFs as their MAC address changes every reboot.
> |
> | To avoid this problem we could change the kernel name for the VFs and
> | thus avoid confusion between VFs and PFs.
> |
> | I've already discussed this with Alexander Duyck and Greg Rose, so far
> | they have no objection. However this problem appears for all drivers that
> | support PFs and VFs and thus the changes should be applied consistently
> | to all of these drivers.
>
> I'm not sure that this problem affects "all drivers which support PFs and VFs."
> I think that you might mean "all drivers which support PFs and VFs with non-
> persistent MAC addresses for the VFs." For instance, the MAC addresses
> associated with the new cxgb4vf VFs are persistent so, from what I understand of
> the scenario you outlined, I don't think that they would trigger the problem you
> describe. Please correct me if I've missed something. Thanks.
>
> Casey
You're correct, the problem shouldn't occur with cxgb4vf and therefore
this change shouldn't be necessary. However we might consider a
consistent naming scheme for VFs in all drivers. But I don't have a
strong opinion about this, either way would be fine by me.
Stefan
--
Stefan Assmann | Red Hat GmbH
Software Engineer | Otto-Hahn-Strasse 20, 85609 Dornach
| HR: Amtsgericht Muenchen HRB 153243
| GF: Brendan Lane, Charlie Peters,
sassmann at redhat.com | Michael Cunningham, Charles Cachera
next prev parent reply other threads:[~2010-07-01 6:37 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-30 8:53 [PATCH] igbvf: avoid name clash between PF and VF Stefan Assmann
2010-06-30 10:44 ` Ben Hutchings
2010-06-30 10:57 ` Stefan Assmann
2010-06-30 11:11 ` Kay Sievers
2010-06-30 13:07 ` Harald Hoyer
2010-06-30 16:59 ` Casey Leedom
2010-07-01 6:37 ` Stefan Assmann [this message]
2010-07-01 17:12 ` Casey Leedom
2010-07-02 6:37 ` Stefan Assmann
2010-07-08 13:41 ` Arnd Bergmann
2010-07-09 9:31 ` Stefan Assmann
2010-07-09 15:33 ` Rose, Gregory V
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