Jesse,
Thanks for the quick reply.
Let me restate my thoughts here:
1. I have 4 ports: A, B, C and D
2. On each of the ports I wanted to enable 128 queues.
3. Next I would want to segregate 8 queues per pool, leading to 16 pools.
4. 128 Queues are reqd. both for Tx and Rx directions.
With the above requirement, I thought VMDq + DCB will be useful. So when I
receive traffic on a Port A say with Vlan say 100, then I give it Pool 1 in
Port A. Then based on the QoS, I would go further and put it in an
appropriate queue within the pool.
I hope I was able to give you better picture now.
Thanks
Rama
On Fri, Jul 22, 2011 at 3:54 PM, Brandeburg, Jesse <
[email protected]> wrote:
>
>
> On Fri, 22 Jul 2011, Rama Puranam wrote:
>
> > Hi,
> >
> > I am trying to enable 128 queues per Niantic port. I have four such
> ports.
>
> do you need 128 tx queues or rx queues or both?
>
> > My need to is to have the following configuration.
> >
> > FCoE -> Disabled.
> >
> > DCA -> Disabled
> >
> > FdirMode -> Disabled
>
> if you do this you can't use more than 16 rx queues (rss) - in non-pool
> mode, see below
>
> > RSS -> Disabled
>
> if you do this then you can't use more than 1 rx queue because there will
> be nothing to steer the packets to the rx queues - in non-pool mode, see
> below
>
> > VMDq -> Enabled
>
> so you're trying to set up 16 VMQs with 8 queue pairs each? or 8 VMQs
> (pairs) with 16 queues each?
>
> > DCB -> Enabled.
>
> wait, what are you trying to do here? for DCB you get 8 pools of queues
> (one for each priority) with up to 16 queues in each one.
>
> not sure about this, but I thought DCB and VMDq were mutually exclusive.
> we have code in the works to fix co-existence of DCB and RSS, or SR-IOV
> and RSS, but it isn't released yet.
>
> 82599 once in pool mode splits everything up into 8 pieces,
>
> Basically you're way out past the supported feature set of our drivers.
>
> > Tried to various combinations using the ixgbe driver code, but could not
> > enable more than 64 queues per port.
>
> hardware only supports 64 interrupts, but can support 128/128 tx/rx (4
> queues per interrupt)
>
> please describe what you're trying to do, but given the above, I'm pretty
> sure you're beyond our driver's current support.
>
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