On Tue, 26 May 2026 at 10:42, David Marchand <[email protected]> wrote: > > This is a continuation of the work I started on the bus infrastructure, > but this time, a lot of the changes were done by a AI "friend". > It is still an unfinished topic as the current series focuses on probing > only. The detaching/cleanup aspect is postponed to another release/time. > > My AI "friend" really *sucked* at git and at separating unrelated changes, > so it required quite a lot of massage/polishing afterwards. > But it seems good enough now for upstream submission. > > I would like to see this series merged in 26.07, so that we have enough > time to stabilize it before the next LTS. > And seeing how it affects drivers, it is probably better to merge it > the sooner possible (so Thomas does not have to solve too many conflicts > when pulling next-* subtrees after, especially wrt the last patch). > > > This series refactors the DPDK bus infrastructure to consolidate common > operations and reduce code duplication across all bus drivers. > Currently, each bus implements its own specific device/driver lists, > probe logic, and lookup functions. > This series moves these common patterns into the EAL bus layer, > providing generic helpers that all buses can use. > > The refactoring removes approximately 1,400 lines of duplicated code across > the codebase while maintaining full functional equivalence. > > Key changes: > - Factorize device and driver lists into struct rte_bus > - Implement generic probe, device/driver lookup, and iteration helpers in EAL > - Introduce conversion macros (RTE_BUS_DEVICE, RTE_BUS_DRIVER, > RTE_CLASS_TO_BUS_DEVICE) > to safely convert between generic and bus-specific types > - Remove bus-specific device/driver types from most driver code > - Move probe logic from individual buses to rte_bus_generic_probe() > - Separate NXP-specific metadata from generic bus structures > > Benefits: > - Significant code reduction (~1,400 lines removed) > - Consistent behavior across all bus types > - Simplified bus driver implementation > - Easier maintenance and future enhancements > > The series is structured as a progressive refactoring: > - Remove redundant checks and helpers (patches 1-5) > - Add conversion macros and factorize lists (patches 6-8) > - Consolidate device/driver lookup and iteration (patches 9-11) > - Refactor probe logic (patches 12-15) > - Remove bus-specific types from drivers (patches 16-23) > > Note on ABI: > This series breaks the ABI for drivers (changes to rte_pci_device, > rte_pci_driver, and similar structures for other buses). However, the DPDK > ABI policy does not provide guarantees for driver-level interfaces. > > > -- > David Marchand > > Changes since v2: > - fixed dma/idxd probing as reported by Bruce, > - moved api_ver setting (from match to scan) in bus/uacce, > - fixed transient bug in the vdev code (in the middle of the series). > tl;dr the high level difference for bus/vdev between v2 and v3 == 0, > - fixed doxygen, > - enhanced API description,
There was some hiccup from Red Hat SMTP when sending the series.. hopefully my resending of the second half of the patches is good enough. At least, patchwork looks happy. -- David Marchand
