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> --- v1 -> v2 * The first part of this series has been dropped. After discussion with Thomas, it was decided to postpone the removal of the relevant rte_pci_* functions. * Add the parameters evolution in-tree additionally to the commit log. --- doc/guides/rel_notes/deprecation.rst | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst index a3e7c72..8f800dc 100644 --- a/doc/guides/rel_notes/deprecation.rst +++ b/doc/guides/rel_notes/deprecation.rst @@ -81,3 +81,10 @@ Deprecation Notices - ``rte_crpytodev_scheduler_mode_get``, replaced by ``rte_cryptodev_scheduler_mode_get`` - ``rte_crpytodev_scheduler_mode_set``, replaced by ``rte_cryptodev_scheduler_mode_set`` + +* 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. + + Accompanying this evolution, device command line parameters will thus support + explicit bus definition in a device declaration. -- 2.1.4
