VFIO

Error - no supported modules(DPDK driver) are loaded

[   45.422045] VFIO - User Level meta-driver version: 0.3
Y
Error - no supported modules(DPDK driver) are loaded
[root@localhost ~]# 

正常情况下

[root@localhost cloud_images]# lsmod | grep vfio 
vfio_pci              262144  0 
vfio_virqfd           262144  1 vfio_pci
vfio_iommu_type1      262144  0 
vfio                  262144  3 vfio_iommu_type1,vfio_pci

Error - no supported modules(DPDK driver) are loaded

 只执行了modprobe  vfio enable_unsafe_noiommu_mode=1

[root@localhost ~]# modprobe vfio-pci
[root@localhost ~]# lsmod | grep vfio
vfio_pci              262144  0 
vfio_virqfd           262144  1 vfio_pci
vfio_iommu_type1      262144  0 
vfio                  262144  2 vfio_iommu_type1,vfio_pci
[root@localhost ~]# 

[root@localhost ~]# dpdk-devbind  -s

Network devices using kernel driver
===================================
0000:00:01.0 'Virtio network device 1000' if=eth0 drv=virtio-pci unused=vfio-pci 

No 'Crypto' devices detected
============================

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

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

No 'Compress' devices detected
==============================
[root@localhost ~]# dpdk-devbind  -b vfio-pci  0000:00:01.0

EAL: Detected 4 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Auto-detected process type: PRIMARY
EAL: Multi-process socket /var/run/dpdk/pg/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: No free hugepages reported in hugepages-524288kB
EAL: No free hugepages reported in hugepages-524288kB
EAL: Probing VFIO support...
EAL: VFIO support initialized
EAL: PCI device 0000:00:01.0 on NUMA socket -1
EAL:   Invalid NUMA socket, default to 0
EAL:   probe driver: 1af4:1000 net_virtio
EAL:   using IOMMU type 8 (No-IOMMU)
[  284.255173] vfio-pci 0000:00:01.0: vfio-noiommu device opened by user (testpmd:973)
EAL: Ignore mapping IO port bar(0)
get_cfg_addr(): bar 4 base addr is NULL
get_cfg_addr(): bar 4 base addr is NULL
get_cfg_addr(): bar 4 base addr is NULL
get_cfg_addr(): bar 4 base addr is NULL
Set macswap packet forwarding mode
Interactive-mode selected
EAL: Error - exiting with code: 1
  Cause: nb-cores should be > 0 and <= 2