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[Xen-devel] Re: [Xen-users] wiki page on 10G SRIOV

To: Pasi Kärkkäinen <pasik@xxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Re: [Xen-users] wiki page on 10G SRIOV
From: kishore kumar <bodkekumar@xxxxxxxxx>
Date: Mon, 19 Jul 2010 10:15:40 -0700
Cc: wangalalei <girl111_2002@xxxxxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxx
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Hello Everyone,
I am facing a strange issue with my 10G 82599 PCIe device.
The Device Id has to be 0x10FB for SRIOV to function properly, But all of sudden the Device ID started showing me as 0x10D8, and because of this the SRIOV feature is not working and I cannot assign the Virtual Function to  my guest.
When I did lspci command it is showing me as Intel Corporation Unknown device 10d8 (rev 01).  Previously it was showing me Intel Corporation 82599EB Gigabit Networking with 10FB, and I was able to assign the Virtual Function to my guest.
I googled and found out that the device ID 0x10D8 is a 82599 Unprogrammed device.
Can any one please let me know what is happening here and how to recover back from this?
I am totally blocked for 2 days because of this issue.
Thank You.
On Fri, Jul 16, 2010 at 1:05 AM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
On Fri, Jul 16, 2010 at 02:17:30AM +0000, wangalalei wrote:
>    hi all:
>       i read intel 82576 card datasheet,and finding it saying that the 82576
>    can set the vf's bandwidth,
>    but when i test this card,i can not find any parameter to it
>       any one else notice this problem? or anyone knows whether the 82576
>    card can control its vf's bandwidth?

I think bandwidth management is a work-in-progress by Intel..

-- Pasi

>    alaleiwang
>    --------------------------------------------------------------------------
>    Date: Thu, 15 Jul 2010 18:35:57 -0700
>    Subject: Re: [Xen-users] wiki page on 10G SRIOV
>    From: bodkekumar@xxxxxxxxx
>    To: pasik@xxxxxx
>    CC: xen-users@xxxxxxxxxxxxxxxxxxx
>    Yeah, I configured 64 Virtual Functions in DOM-0  and passthru 1 VF to
>    assign it to the guest.  It worked for me.
>    I assign static IP to my guest and tried to ping the remote machine. It
>    worked for me.
>    But I am wondering that ping to DOM-0 from guest makes any sense here?
>    Can you let me know on this?  ping worked though from guest to DOM-0 as
>    well.
>    On Thu, Jul 15, 2010 at 1:11 PM, Pasi KÀrkkÀinen <[1]pasik@xxxxxx>
>    wrote:
>      On Thu, Jun 24, 2010 at 10:56:28AM -0700, kishore kumar wrote:
>      >    Hi All,
>      >
>      >    Can any one please let me know if there is a WIKI page which talks
>      about
>      >    how to configure SRIOV in Xen and use Physical Functions  and
>      Virtual
>      >    Functions ?
>      >
>      >    I searched xen wiki, but could not find.
>      >
>      Each virtual function should be a separate PCI device, so you can
>      passthru
>      them like any other normal PCI device.
>      Did you get it to work?
>      -- Pasi
>    --------------------------------------------------------------------------
>    è**倩+æ**玢+é*®ç®± æ*³èŠ*蜻æ*Ÿå*ºæžž,æ**æ*ºMSNåž®äœ æ**å®*!
>    [2]ç«*å*»äž*蜜ïŒ*
> References
>    Visible links
>    1. mailto:pasik@xxxxxx
>    2. http://3g.msn.cn/

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