On Wed, 10 May 2017 17:46:10 +0200 Gaetan Rivet <gaetan.ri...@6wind.com> wrote:
> The PCI and virtual bus are planned to be moved to the generic > drivers/bus directory in v17.08. For this change to be possible, the EAL > must be made completely independent. > > The rte_devargs structure currently holds device representation internal > to those two busses. It must be made generic before this work can be > completed. > > Instead of using either a driver name for a vdev or a PCI address for a > PCI device, a devargs structure will have to be able to describe any > possible device on all busses, without introducing dependencies on > any bus-specific device representation. This will break the ABI for this > structure. > > Additionally, an evolution will occur regarding the device parsing > from the command-line. A user must be able to set which bus will handle > which device, and this setting is integral to the definition of a > device. > > The format has not yet been formally defined, but a proposition will > follow soon for a new command line parameter format for all devices. > > Signed-off-by: Gaetan Rivet <gaetan.ri...@6wind.com> I understand why having a union of all bus types is an issues since it means that if a new bus type (like VMBUS with GUID) has a bigger value then the existing representation would break. Perhaps give an example of what the new model would look like?
