Yep, I understand now. The manual [1] says that intel 827574 controller (controlled by e1000 driver) has only 2 ports per port. Thanks for the help. Sergey
[1] - http://www.intel.com/content/www/us/en/ethernet-controllers/i211-ethernet-controller-datasheet.html PS I actually have another machine SCB-8973 equipped with i211 controller, where DPDK returns number of queues - zero. Probably, it is a hardware bug, but I'll better start another thread for this issue. 2014-08-26 4:14 GMT+04:00 Stephen Hemminger <stephen at networkplumber.org>: > On Mon, 25 Aug 2014 13:41:34 +0400 > Sergey Mironov <grrwlf at gmail.com> 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.
