From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen-OTpzqLSitTUnbdJkjeBofR2eb7JE58TQ@public.gmane.org>
Subject: Re: Fwd: ixgbe network card has dev_info.max_rx_queues
 == 0
Date: Mon, 25 Aug 2014 17:14:17 -0700
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To: Sergey Mironov <grrwlf-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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On Mon, 25 Aug 2014 13:41:34 +0400
Sergey Mironov <grrwlf-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:

> Hi. I've found more data on this issue. My machine (CB-8970) is
> equipped with two ixgbe and six e1000 ports + one more e1000 port as
> management interface.
> I ask the DPDK to allocate 3 TX queues and 3 RX queues for each of 8
> working ports, 6 * 8 = 48 queues (see the configuration code snippet
> at the end of the letter)

You need to look at dev_info and not allocate more queues than the
hardware supports. Many E1000 devices only support a single queue.