From mboxrd@z Thu Jan 1 00:00:00 1970 From: Subject: /sys/bus/pci/devices/[interface]/numa_node is -1 Date: Thu, 31 Oct 2013 09:18:10 +0900 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: Return-path: List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" Hi, I try to run DPDMK testpmd and failed. I found that EAL will read /sys/bus/pci/devices/[interface]/numa_node file and initilize the PCI devices. My PC does not support NUMA, it has only one processor. However, initial value of numa_node of the device is -1. I found some suggestion that BIOS should support the proper ACPI features to detect PCI devices affinity to CPU. Otherwise, the numa_node will be -1. However, I can not find the proper option in the BIOS. Does anyone have the same problem or can give some suggestion? Thank you. Cheng Luo.