10/05/2017 14:52, Gaetan Rivet: > 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.
This syntax evolution is not announced below. > 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> > --- > doc/guides/rel_notes/deprecation.rst | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/doc/guides/rel_notes/deprecation.rst > b/doc/guides/rel_notes/deprecation.rst > index c2f58eb..e91fc99 100644 > --- a/doc/guides/rel_notes/deprecation.rst > +++ b/doc/guides/rel_notes/deprecation.rst > @@ -87,3 +87,7 @@ Deprecation Notices > > - ``rte_eal_pci_detach``, replaced by using the corresponding bus generic > method ``detach``. > + > +* devargs: An ABI change is planned for 17.08 for the structure > ``rte_devargs``. > + The current version is dependent on bus-specific device identifier, which > will > + be made generic and abstracted, in order to make the EAL bus-agnostic. >
