[dpdk-dev] l2fwd not working on PF while working on VF

Tomasz K tomasz.kasowicz at gmail.com
Wed Apr 9 17:21:00 CEST 2014


Hi Bruce

Thanks for the tip. I changed VFs to 6 and now everything works ok on PF.

Thank You very much
Tomasz Kasowicz


2014-04-09 17:10 GMT+02:00 Richardson, Bruce <bruce.richardson at intel.com>:

> > -----Original Message-----
> > From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Tomasz K
> > Sent: Wednesday, April 09, 2014 3:04 PM
> > To: dev
> > Subject: [dpdk-dev] l2fwd not working on PF while working on VF
> >
> > Dear All
> >
> > I have a setup with Intel 82576 DPDK NIC.
> > For one of the available DPDK ports i have created 8 VFs using igb_uio
> based on
> > steps presented in programmers guide. Some of them are attached to VM,
> some
> > maybe used on host
> >
> > After some tests with l2fwd application i found out that it is not
> working for PF,
> > but works perfectly for any VF (both on host and in VM).
> >
> How many queues are being allocated to each VF? According to the
> datasheet, the 82576 NIC has only got 16 RX and TX queues, so if you have 8
> VF's with 2 RX and TX queues allocated to each, you may have no remaining
> queues left for the PF to use on the host.
>


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