root@dpdk-yaobing-purely147:~/dpdk# ./usertools/dpdk-devbind.py -h
usage: dpdk-devbind.py [-h] [-s]
                       [--status-dev {net,baseband,crypto,event,mempool,compress}]
                       [-b DRIVER | -u] [--force]
                       [DEVICE [DEVICE ...]]

Utility to bind and unbind devices from Linux kernel

positional arguments:
  DEVICE                Device specified as PCI "domain:bus:slot.func" syntax
                        or "bus:slot.func" syntax. For devices bound to Linux
                        kernel drivers, they may be referred to by interface
                        name.

optional arguments:
  -h, --help            show this help message and exit
  -s, --status          Print the current status of all known devices.
  --status-dev {net,baseband,crypto,event,mempool,compress}
                        Print the status of given device group.
  -b DRIVER, --bind DRIVER
                        Select the driver to use or "none" to unbind the
                        device
  -u, --unbind          Unbind a device (equivalent to "-b none")
  --force               Override restriction on binding devices in use by
                        Linux" WARNING: This can lead to loss of network
                        connection and should be used with caution.

Examples:
---------

To display current device status:
        dpdk-devbind.py --status

To display current network device status:
        dpdk-devbind.py --status-dev net

To bind eth1 from the current driver and move to use vfio-pci
        dpdk-devbind.py --bind=vfio-pci eth1

To unbind 0000:01:00.0 from using any driver
        dpdk-devbind.py -u 0000:01:00.0

To bind 0000:02:00.0 and 0000:02:00.1 to the ixgbe kernel driver
        dpdk-devbind.py -b ixgbe 02:00.0 02:00.1
root@dpdk-yaobing-purely147:~/dpdk#


root@dpdk-yaobing-purely147:~/dpdk# ./usertools/dpdk-devbind.py -s

Network devices using kernel driver
===================================
0000:20:00.0 'Ethernet Connection X722 for 10GBASE-T 37d2' if=eno1 drv=i40e unused=vfio-pci *Active*
0000:20:00.1 'Ethernet Connection X722 for 10GBASE-T 37d2' if=eno2 drv=i40e unused=vfio-pci
0000:20:00.2 'Ethernet Connection X722 for 10GbE SFP+ 37d3' if=eno3 drv=i40e unused=vfio-pci
0000:20:00.3 'Ethernet Connection X722 for 10GbE SFP+ 37d3' if=eno4 drv=i40e unused=vfio-pci
0000:3b:00.0 'Ethernet Controller XL710 for 40GbE QSFP+ 1583' if=enp59s0f0 drv=i40e unused=vfio-pci
0000:3b:00.1 'Ethernet Controller XL710 for 40GbE QSFP+ 1583' if=enp59s0f1 drv=i40e unused=vfio-pci
0000:60:00.0 'Ethernet Controller XL710 for 40GbE QSFP+ 1583' if=enp96s0f0 drv=i40e unused=vfio-pci
0000:60:00.1 'Ethernet Controller XL710 for 40GbE QSFP+ 1583' if=enp96s0f1 drv=i40e unused=vfio-pci
0000:86:00.0 'Ethernet Controller XL710 for 40GbE QSFP+ 1583' if=enp134s0f0 drv=i40e unused=vfio-pci
0000:86:00.1 'Ethernet Controller XL710 for 40GbE QSFP+ 1583' if=enp134s0f1 drv=i40e unused=vfio-pci
0000:d8:00.0 'Ethernet Controller X710 for 10GbE SFP+ 1572' if=enp216s0f0 drv=i40e unused=vfio-pci
0000:d8:00.1 'Ethernet Controller X710 for 10GbE SFP+ 1572' if=enp216s0f1 drv=i40e unused=vfio-pci
0000:d8:00.2 'Ethernet Controller X710 for 10GbE SFP+ 1572' if=enp216s0f2 drv=i40e unused=vfio-pci
0000:d8:00.3 'Ethernet Controller X710 for 10GbE SFP+ 1572' if=enp216s0f3 drv=i40e unused=vfio-pci

No 'Baseband' devices detected
==============================

Crypto devices using DPDK-compatible driver
===========================================
0000:1a:01.0 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1a:01.1 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1a:01.2 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1a:01.3 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1a:01.4 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1a:01.5 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1a:01.6 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1a:01.7 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1a:02.0 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1a:02.1 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1a:02.2 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1a:02.3 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1a:02.4 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1a:02.5 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1a:02.6 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1a:02.7 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:01.0 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:01.1 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:01.2 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:01.3 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:01.4 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:01.5 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:01.6 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:01.7 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:02.0 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:02.1 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:02.2 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:02.3 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:02.4 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:02.5 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:02.6 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1c:02.7 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:01.0 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:01.1 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:01.2 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:01.3 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:01.4 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:01.5 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:01.6 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:01.7 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:02.0 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:02.1 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:02.2 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:02.3 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:02.4 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:02.5 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:02.6 'Device 37c9' drv=vfio-pci unused=qat_c62xvf
0000:1e:02.7 'Device 37c9' drv=vfio-pci unused=qat_c62xvf

Crypto devices using kernel driver
==================================
0000:1a:00.0 'C62x Chipset QuickAssist Technology 37c8' drv=c6xx unused=qat_c62x,vfio-pci
0000:1c:00.0 'C62x Chipset QuickAssist Technology 37c8' drv=c6xx unused=qat_c62x,vfio-pci
0000:1e:00.0 'C62x Chipset QuickAssist Technology 37c8' drv=c6xx unused=qat_c62x,vfio-pci

No 'Eventdev' devices detected
==============================

No 'Mempool' devices detected
=============================

No 'Compress' devices detected
==============================

Misc (rawdev) devices using kernel driver
=========================================
0000:00:04.0 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
0000:00:04.1 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
0000:00:04.2 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
0000:00:04.3 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
0000:00:04.4 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
0000:00:04.5 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
0000:00:04.6 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
0000:00:04.7 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
0000:80:04.0 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
0000:80:04.1 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
0000:80:04.2 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
0000:80:04.3 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
0000:80:04.4 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
0000:80:04.5 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
0000:80:04.6 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci
0000:80:04.7 'Sky Lake-E CBDMA Registers 2021' drv=ioatdma unused=vfio-pci

No 'Regex' devices detected
===========================