Thanks for the background Frank.  Was a level of detail beyond my first glance 
of comprehension.

+1 to the change

Suggest we apply it to both POD’s, but have the infra team coordinate with POD 
users prior to making the change.  
There should be a Jira process for infra that should be followed for these 
types of changes, but as it’s not ready can we at least raise the change to the 
infra wg for discussion on Wednesday?

/ Chris



On 29/08/16 20:00, "[email protected] on behalf of Frank 
Brockners (fbrockne)" <[email protected] on behalf of 
[email protected]> wrote:

    Hi Tim,
    
    +1 on the config change. 
    
    Background: If one wants to switch to Rx scatter mode for 1 queue or use 
more than 1 RQ, one really does have to configure on the VNIC 2x the number 
needed by the DPDK app. There is no way around this in the current 
implementation and is the way Rx scatter works on the VIC, where Rx Scatter 
spill-over buffers are on a 2nd RQ .  Hence the general advice is to configure 
2x the number of RQs needed. This will also be reflected in the next revision 
of the ENIC driver documentation. Longer term, there is a plan to eliminate the 
2nd RQ in general (not just for 1 RQ) when Rx scatter is disabled but this is 
probably happening post the 16.11 DPDK release.
    
    Frank
    
    
    -----Original Message-----
    From: [email protected] 
[mailto:[email protected]] On Behalf Of Tim Rozet
    Sent: Montag, 29. August 2016 18:17
    To: [email protected]
    Cc: Gregory Elkinbard <[email protected]>; Sean Chandler (sechandl) 
<[email protected]>; [email protected]; OPNFV Tech 
<[email protected]>
    Subject: [Fds-dev] Configuring LF POD with 2 RQs on VIC profiles
    
    Hi,
    We need to configure 2 RQs on VIC profiles in the UCS manager for DPDK to 
work.  From what I understand we can make the configuration change and it won't 
take effect until the blades are rebooted.  For Apex, we need POD 1 to have 
this configuration for FDIO/and OVS DPDK to daily jobs to pass.  Before I make 
the change, just want to make sure no one is against it.  Also, do you want me 
to make the same configuration change for LF POD2 for Fuel?
    
    Thanks,
    
    Tim Rozet
    Red Hat SDN Team
    
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