vdpa/virtio: limit max VFIO group number in container #70
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DPDK EAL layer has limited the maximum number of VFIO group in one VFIO container to 64. So error will be returned if we try to add more than 64 VFs in the container. Although VFIO container/group bind API will check this, it will result in 120 times retry in the driver. This commit limit the max VFIO group number before group bind to avoid the retry time.
RM: 3845142