RE: [Xen-devel] [PATCH] Add VMDq support to ixgbe

["Williams, Mitch A" <mitch.a.williams@xxxxxxxxx>]

I have not seen this crash, and I am running the latest Netchannel2 code.  Can 
you send me some more details?  When do you see this crash?  How many VMs do 
you have running, and with what options?

Thanks for catching the config option issue.  I'll spin up a new patch and get 
it out to Steven.

-Mitch 

>-----Original Message-----
>From: Santos, Jose Renato G [mailto:joserenato.santos@xxxxxx] 
>Sent: Thursday, February 05, 2009 2:37 PM
>To: Williams, Mitch A; xen-devel@xxxxxxxxxxxxxxxxxxx
>Cc: steven.smith@xxxxxxxxxxxxx
>Subject: RE: [Xen-devel] [PATCH] Add VMDq support to ixgbe
>
> 
>Mitch,
>
>I finally found the time to test this.
>I am still seeing the same kernel oops that was present on the 
>previous patch when the ixgbe module was separated from the linux tree.
>Could you please download the code from the latest netchannel2 
>tree and try to reproduce the problem?
>I have attached my old email which has the kernel oops message 
>and includes an older version of the patch that works for me.
>You can compare that older version with the current code to 
>find out what is the problem. 
>
>Also the right config option to enable VMDq should be 
>CONFIG_XEN_NETDEV2_VMQ and not CONFIG_XEN_NETDEV2_BACKEND.
>
>Thanks
>
>Renato
>
>> -----Original Message-----
>> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx 
>> [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
>> Mitch Williams
>> Sent: Wednesday, January 28, 2009 4:43 PM
>> To: xen-devel@xxxxxxxxxxxxxxxxxxx
>> Subject: [Xen-devel] [PATCH] Add VMDq support to ixgbe
>> 
>> This patch adds experimental VMDq support (AKA Netchannel2 
>> vmq) to the ixgbe driver.  This applies to the Netchannel2 
>> tree, and should NOT be applied to the "normal" development tree.
>> 
>> To enable VMDq functionality, load the driver with the 
>> command-line parameter VMDQ=<num queues>, as in:
>> 
>> $ modprobe ixgbe VMDQ=8
>> 
>> You can then set up PV domains to use the device by modifying 
>> your VM configuration file from
>>      vif = [ '<whatever>' ]
>> to
>>      vif2 = [ 'pdev=<netdev>' ]
>> where <netdev> is the interface name for your 82598 board, 
>> e.g peth0 in dom0.
>> 
>> The Netchannel2 code is VERY experimental at this stage and 
>> should not be used in production environments.  This patch is 
>> intended to support further development and testing efforts.
>> 
>> Signed-off-by: Mitch Williams <mitch.a.williams@xxxxxxxxx>
>> 
>
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