[dpdk-dev] Nehalem Intel Xeon X5506 architecture and PCIe NIC association to Numa node

["Huertas García, Víctor" <vhuertas@indra.es>]

Hi all,

After having tried many ways to make the PCIe NIC card appear associated to a numa node, I haven't been able to do it.
That is, every time I try to look at which numa node belongs it always returns -1.

$ cat /sys/bus/pci/devices/0000\:04\:00.1/numa_node
-1

$ cat /sys/bus/pci/devices/0000\:04\:00.0/numa_node
-1

Using lstopo, I confirm that all PCI cards are "outside" of  any Numa node.

I have read in previous posted messages in dpdk-dev community that this is normal in Nehalem generation Xeon architecture and there is nothing I can do about it. Can somebody confirm this?
If so, what implications could this have on packet capture and performance?

Are the NICs available in my DPDK applications? Do I have to specifically "add" them by "-w 04:00.1 - w 04:00.0"?
Is RSS supported and usable from the DPDK application?

Thanks a lot for your attention

Victor

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