[0/2] add platform bus

  Platform bus is a bus under Linux which manages devices that do not have
any discovery-mechanism built in. Linux learns about platform devices
directly from device-tree during boot-up phase.

Afterwards if userspace wants to use some particular device driver being
usually a mixture of vdev/rawdev gets developed.

In order to simplify that introduce a DPDK platform bus which provides
auto-probe experience and separates a bus logic from the driver itself.

Now only devices which are backed-by vfio-platform kernel driver
are supported, though other options may be added if necessary.

Tomasz Duszynski (2):
  lib: add helper to read strings from sysfs files
  bus: add platform bus

 MAINTAINERS                                |   4 +
 app/test/test_eal_fs.c                     | 108 +++-
 doc/guides/rel_notes/release_23_03.rst     |   5 +
 drivers/bus/meson.build                    |   1 +
 drivers/bus/platform/bus_platform_driver.h | 174 ++++++
 drivers/bus/platform/meson.build           |  16 +
 drivers/bus/platform/platform.c            | 604 +++++++++++++++++++++
 drivers/bus/platform/platform_params.c     |  70 +++
 drivers/bus/platform/private.h             |  48 ++
 drivers/bus/platform/version.map           |  10 +
 lib/eal/common/eal_filesystem.h            |   6 +
 lib/eal/unix/eal_filesystem.c              |  24 +-
 lib/eal/version.map                        |   1 +
 13 files changed, 1053 insertions(+), 18 deletions(-)
 create mode 100644 drivers/bus/platform/bus_platform_driver.h
 create mode 100644 drivers/bus/platform/meson.build
 create mode 100644 drivers/bus/platform/platform.c
 create mode 100644 drivers/bus/platform/platform_params.c
 create mode 100644 drivers/bus/platform/private.h
 create mode 100644 drivers/bus/platform/version.map

--
2.34.1
  

This was mistakenly appended to this thread - ignore it. I've just sent the series again. 

>-----Original Message-----
>From: Tomasz Duszynski <tduszynski@marvell.com>
>Sent: Wednesday, January 25, 2023 11:33 AM
>To: dev@dpdk.org
>Cc: thomas@monjalon.net; Jerin Jacob Kollanukkaran <jerinj@marvell.com>;
>stephen@networkplumber.org; chenbo.xia@intel.com; Tomasz Duszynski <tduszynski@marvell.com>
>Subject: [PATCH 0/2] add platform bus
>
>Platform bus is a bus under Linux which manages devices that do not have any discovery-mechanism
>built in. Linux learns about platform devices directly from device-tree during boot-up phase.
>
>Afterwards if userspace wants to use some particular device driver being usually a mixture of
>vdev/rawdev gets developed.
>
>In order to simplify that introduce a DPDK platform bus which provides auto-probe experience and
>separates a bus logic from the driver itself.
>
>Now only devices which are backed-by vfio-platform kernel driver are supported, though other
>options may be added if necessary.
>
>Tomasz Duszynski (2):
>  lib: add helper to read strings from sysfs files
>  bus: add platform bus
>
> MAINTAINERS                                |   4 +
> app/test/test_eal_fs.c                     | 108 +++-
> doc/guides/rel_notes/release_23_03.rst     |   5 +
> drivers/bus/meson.build                    |   1 +
> drivers/bus/platform/bus_platform_driver.h | 174 ++++++
> drivers/bus/platform/meson.build           |  16 +
> drivers/bus/platform/platform.c            | 604 +++++++++++++++++++++
> drivers/bus/platform/platform_params.c     |  70 +++
> drivers/bus/platform/private.h             |  48 ++
> drivers/bus/platform/version.map           |  10 +
> lib/eal/common/eal_filesystem.h            |   6 +
> lib/eal/unix/eal_filesystem.c              |  24 +-
> lib/eal/version.map                        |   1 +
> 13 files changed, 1053 insertions(+), 18 deletions(-)  create mode 100644
>drivers/bus/platform/bus_platform_driver.h
> create mode 100644 drivers/bus/platform/meson.build  create mode 100644
>drivers/bus/platform/platform.c  create mode 100644 drivers/bus/platform/platform_params.c
> create mode 100644 drivers/bus/platform/private.h  create mode 100644
>drivers/bus/platform/version.map
>
>--
>2.34.1