Hi @Prashant Gupta
Please share your test results
Regards
Hemant
NXP Confidential
> -----Original Message-----
> From: David Marchand <[email protected]>
> Sent: 14 October 2026 23:10
> To: Hemant Agrawal <[email protected]>; [email protected]
> Subject: [PATCH 00/16] Device unplug and bus cleanup refactoring for NXP
> Importance: High
>
> Hello Hemant,
>
> This is a followup to the refactoring started in 26.07.
>
> I took some time with my best AI friend to cleanup DPAA and FSLMC bus
> drivers.
>
> Like the last time, only compilation has been checked.
> I have no hardware to test runtime.
>
> One thing that could be broken is either the order of devices initialisation,
> or
> bugs in the device filtering that I tried to simplify.
>
> I went with the approach of splitting the device list between internal bus
> object (that I called "control" devices, maybe a better name can be found),
> and
> normal bus device object for which DPDK has a driver.
>
> I think it is worth testing and fixing, as it will make the two NXP bus
> drivers
> similar to other bus drivers (but keep the special IO devices handling
> internal to
> the FSLMC bus for example).
>
>
> --
> David Marchand
>
> Changes since RFC v2:
> - rebased,
> - fixed interrupt closing,
>
> Changes since RFC v1:
> - fixed FD leak in bus/dpaa pre existing code,
> - fixed device name leak in bus/fslmc pre existing code,
> - fixed other leaks found by AI review,
> - split DPAA2 devices in two list:
> - one list in the bus object for devices for which a driver exists,
> - one list local to the fslmc bus code for internal resources that
> are initialised out of the EAL / bus framework,
>
> David Marchand (16):
> drivers/bus: cleanup device freeing in NXP bus scan
> drivers/bus: fix FD leak during scan in NXP drivers
> bus/dpaa: allocate interrupt during probing
> bus/dpaa: support unplug and use generic cleanup
> bus/fslmc: fix device name leak
> bus/fslmc: fix memory leaks in scan
> bus/fslmc: fix per type device count
> bus/fslmc: fix some VFIO device FD and memory leaks
> bus/fslmc: fix interrupt leak in DPIO cleanup
> bus/fslmc: simplify device parsing in scan
> bus/fslmc: release resources on probe failure
> bus/fslmc: refactor device filtering for multiprocess
> bus/fslmc: move unplug for some device out of VFIO
> bus/fslmc: call VFIO setup for some device from bus layer
> bus/fslmc: allocate interrupt during probing
> bus/fslmc: use generic cleanup
>
> doc/guides/rel_notes/release_26_11.rst | 4 +
> drivers/bus/dpaa/dpaa_bus.c | 149 +++++----
> drivers/bus/fslmc/bus_fslmc_driver.h | 4 +-
> drivers/bus/fslmc/fslmc_bus.c | 404 ++++++++++++++++------
> drivers/bus/fslmc/fslmc_vfio.c | 407 +++++++++++------------
> drivers/bus/fslmc/fslmc_vfio.h | 6 +
> drivers/bus/fslmc/portal/dpaa2_hw_dpio.c | 1 +
> drivers/bus/fslmc/private.h | 6 +
> 8 files changed, 592 insertions(+), 389 deletions(-)
>
> --
> 2.54.0
