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From: "Pavel Matěja" <pavel@netsafe.cz>
To: xen-devel@lists.xensource.com
Subject: Re: [PATCH] xen-netfront: report link speed to ethtool
Date: Fri, 18 Nov 2011 20:11:31 +0100	[thread overview]
Message-ID: <201111182011.32318.pavel@netsafe.cz> (raw)
In-Reply-To: <4EC6A778.1000503@hp.com>

On Fri 18. of November 2011 19:44:08 you wrote:
> On 11/18/2011 09:46 AM, Ben Hutchings wrote:
> > On Fri, 2011-11-18 at 17:48 +0100, Olaf Hering wrote:
> >> Add .get_settings function, return fake data so that ethtool can get
> >> enough information. For some application like VCS, this is useful,
> >> otherwise some of application logic will get panic.
> >> The reported data refers to VMWare vmxnet.
> >> 
> >> Signed-off-by: Xin Wei Hu<xwhu@suse.com>
> >> Signed-off-by: Chunyan Liu<cyliu@suse.com>
> >> Signed-off-by: Olaf Hering<olaf@aepfle.de>
> > 
> > NAK, we should not just make things up.
> 
> Which raises an interesting question for a virtual interface that isn't
> pretending to be a specific NIC type. What should the reported speed be?
>   Is it a 10/100 NIC?  A 1 or 10 GbE NIC? 3.14 GbE?  For other emulated
> interfaces, it rather falls-out from the emulation.  We can say that the
> driver may not make stuff up, but it would seem what is running in the
> host/hypervisor/dom0/whatever will have to.  It could I suppose, decide
> based on the physical NIC to which it is attached, so long as folks
> using the virtual NIC don't expect its attributes to be the same from
> system to system.
> 
> rick

Hmm,
two questions from me.
I think there is 10GbE link reported in Windows gplpv 0.11.0.322 driver.
Let say I have two virtual Windows running on XEN and they are in bridge with 
1GbE physical NIC.
Will the Windows talk to each other on 10GbE thru the bridge?
What should I do to give them 10GbE access to local samba server?
-- 
Pavel Mateja

  parent reply	other threads:[~2011-11-18 19:11 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-18 16:48 [PATCH] xen-netfront: report link speed to ethtool Olaf Hering
2011-11-18 17:46 ` Ben Hutchings
2011-11-18 17:46   ` Ben Hutchings
2011-11-18 18:43   ` Olaf Hering
2011-11-18 19:10     ` Ben Hutchings
2011-11-18 19:10       ` Ben Hutchings
2011-11-18 19:17       ` Olaf Hering
2011-11-18 18:44   ` Rick Jones
2011-11-18 18:46     ` Jeremy Fitzhardinge
2011-11-18 18:58       ` use a special value of -2 for virtual devices to report indeterminate speed? Rick Jones
2011-11-18 19:13         ` Ben Hutchings
2011-11-18 19:11     ` Pavel Matěja [this message]
2011-11-18 19:37       ` [PATCH] xen-netfront: report link speed to ethtool Pasi Kärkkäinen
2011-11-19  1:13         ` James Harper
2011-11-19  1:32       ` James Harper
2011-11-18 19:11   ` David Miller

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