Can the numa node of the pci device be modified under the system?

Solution Verified - Updated -

Issue

  • In a system with numa turned on, lspci -nnvv can be used to view the numa node of the pci device.
  • Can this numa node be modified under the system, such as changing the numa node 0 of the following network card to numa node1?
# lspci -nnvv -s 02:00.0|head
02:00.0 Ethernet controller [0200]: Broadcom Inc. and subsidiaries NetXtreme BCM5719 Gigabit Ethernet PCIe [14e4:1657] (rev 01)
    DeviceName: Embedded LOM 1 Port 1
    Subsystem: Hewlett-Packard Company Ethernet 1Gb 4-port 331i Adapter [103c:22be]
    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0, Cache Line Size: 64 bytes
    Interrupt: pin A routed to IRQ 16
    NUMA node: 0
    Region 0: Memory at 92b90000 (64-bit, prefetchable) [size=64K]
    Region 2: Memory at 92ba0000 (64-bit, prefetchable) [size=64K]

Environment

  • Red Hat Enterprise Linux.
  • NUMA.

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