Hi, 31/03/2018 13:13, Maxime Coquelin: > On 03/31/2018 04:29 AM, Xiao Wang wrote: > > If we want a virtio device to work in vDPA (vhost data path acceleration) > > mode, we could add a "vdpa=1" devarg for this device to specify the mode. > > > > This patch let virtio pmd skip device probe when detecting this parameter. > > As we discussed, I would prefer a generic solution at EAL level.
Please could you explain the requirement and the context? Can we use RTE_ETH_DEV_DEFERRED state and device ownership? Without knowing what's behind, I would say that a PMD should never skip a device by itself, but let other entities decide what to do with the probed device (thanks to probe notifications).
